WO2017045486A1 - 用于传输无线数据的方法、装置和系统 - Google Patents
用于传输无线数据的方法、装置和系统 Download PDFInfo
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- WO2017045486A1 WO2017045486A1 PCT/CN2016/091779 CN2016091779W WO2017045486A1 WO 2017045486 A1 WO2017045486 A1 WO 2017045486A1 CN 2016091779 W CN2016091779 W CN 2016091779W WO 2017045486 A1 WO2017045486 A1 WO 2017045486A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
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- the present invention relates to communication technologies, and more particularly to a method for transmitting wireless data, a wireless data compression device, a wireless data decompression device, and a system for transmitting wireless data.
- the function of the radio base station can be split into a baseband unit (referred to as a baseband unit in English, abbreviated as BBU) and a radio remote unit (referred to as a remote radio unit in English, referred to as RRU).
- BBU baseband unit in English
- RRU remote radio unit in English
- this architecture including BBU and RRU is called green wireless access network based on centralized processing, collaborative radio and real-time cloud computing architecture (English full name is clean, centralized processing, collaborative radio, and real-time cloud radio access).
- Network referred to as C-RAN architecture.
- the BBU sends wireless data to the RRU.
- the BBU is used for performing baseband processing on data from the evolved packet core network (Evolved packet core, EPC for short) to obtain time domain data.
- the BBU sends the time domain data obtained by the BBU to the RRU.
- the RRU processes the time domain data to obtain a radio frequency signal.
- the RRU transmits the obtained radio frequency signal through an antenna.
- embodiments of the present invention provide a method for transmitting wireless data, which helps reduce the bandwidth requirement.
- the embodiment of the invention further provides a wireless data compression device, a wireless data decompression device and the same For systems that transmit wireless data.
- a method for transmitting wireless data comprising:
- the wireless data compression device obtains first frequency domain data, the first frequency domain data includes N sets of data, and N is an integer greater than or equal to 1;
- the wireless data compression device determines, according to the threshold value and the i-th group data in the N sets of data, whether the i-th group data carries a payload, and the i-th group data is any one of the N groups of data. a set of data;
- the wireless data compression device determines that the i-th group of data does not carry a payload
- the wireless data compression device obtains a packet according to the ith group of data, where the packet is a packet generated according to the first frequency domain data, and the packet does not carry the ith group data.
- the message includes indication information, where the indication information is used to indicate that the i-th group data does not carry a payload;
- the wireless data compression device transmits the message.
- each of the N sets of data includes L 1 data, and each of the L 1 data corresponds to one subcarrier, and L 1 is greater than Or an integer equal to 1;
- Determining, by the wireless data compression device, whether the i-th group data in the N sets of data carries a payload according to the threshold value and the N sets of data includes:
- the wireless device determines whether the data compression to L 1 L 2 data comprises numerical data is larger than the threshold value, the numerical values L 2 is greater than the threshold value data is data per L 2 Numerical values corresponding to the data subcarriers is greater than the threshold value, the data corresponding to each of the L sub-carriers of two data values to the L 2 vector magnitude data corresponding to each data sub-carriers , L 2 is less than or equal to L 1 .
- each of the N sets of data includes L 1 data, and each of the L 1 data corresponds to one Subcarrier, L 1 is an integer greater than or equal to 1;
- the wireless data compression device determines the N sets of data according to a threshold value and the N sets of data Whether the i-th group data in the payload carries the payload includes:
- the wireless data compression obtains the message according to the i-th group data, including:
- the wireless data compression device generates, according to the ith group of data, first compression indication information, where the first compression indication information includes a group identifier of each group of data in the N group of data and an indication corresponding to the group identifier
- the indication information corresponding to the group identifier is used to indicate whether the group corresponding to the group identifier carries a payload, and the indication information corresponding to the group identifier of the i-th group data is used to indicate that the data of the i-th group is not carried.
- a load the first compression indication information is the indication information;
- the wireless data compression device encapsulates the k 1 group data carrying the payload in the N sets of data according to the first compression indication information, and generates the packet, where the packet includes the first compression indication Information and the k 1 set of data, the k 1 being an integer greater than or equal to zero.
- a fourth possible implementation manner of the first aspect is further provided, where the first compression indication information is an N-bit bitmap, and the N-bit bitmap The position of the i-th bit in the bitmap of the N-bit is the group identifier of the i-th group of data, and the value of the i-th bit is the indication information corresponding to the group identifier of the i-th group of data.
- the first possible implementation manner of the first aspect or the second possible implementation manner of the first aspect further provides a fifth possible implementation manner of the first aspect
- the wireless data compression The device obtains the message according to the i-th group data, including:
- the wireless data compression device generates, according to the ith set of data, second compression indication information, where the second compression indication information is used to indicate a group identifier of the N group of data carrying a payload, and the second compression indication group identification information includes a set of data k 1 of each set of data, said set of data k 1 to N sets of said sets of data carried in the data payload, the k 1 is an integer equal to or greater than 0, and the second The second compression indication information is the indication information;
- the wireless data compression device encapsulates the k 1 group of data according to the second compression indication information, and generates the packet, where the packet includes the second compression indication information and the k 1 group data .
- the first possible implementation manner of the first aspect or the second possible implementation manner of the first aspect further provides a sixth possible implementation manner of the first aspect
- the wireless data compression The device obtains the message according to the i-th group data, including:
- the wireless data compression device generates, according to the ith group of data, third compression indication information, where the third compression indication information is used to indicate a group identifier of the N group of data that does not carry a payload, and the third compression
- the indication information includes a group identifier of the i-th group of data, and the third compression indication information is the indication information;
- the wireless data compression device encapsulates the k 1 group data carrying the payload in the N sets of data according to the third compression indication information, and generates the packet, where the packet includes the third compression indication Information and the k 1 set of data, the k 1 being an integer greater than or equal to zero.
- the seventh aspect of the first aspect is further provided.
- the obtaining, by the wireless data compression apparatus, the first frequency domain data includes:
- the wireless data compression device receives first time domain data, the first time domain data is first antenna carrier data obtained from a first device or a second device, and the first device is capable of implementing digital baseband processing functions. a device, the second device being a device capable of implementing a radio frequency function;
- the wireless data compression device performs discrete Fourier transform on the first time domain data to obtain the first frequency domain data.
- the first possible implementation of the first aspect or the second possible implementation of the first aspect, the eighth possible implementation of the first aspect is further provided, and the method further includes:
- the wireless data compression device obtains second frequency domain data, the second frequency domain data includes M sets of data, and M is an integer greater than or equal to 1;
- the wireless data compression device determines, according to the threshold value and the jth group data in the M group data, whether the jth group data carries a payload, and the jth group data is in the M group data. Any set of data;
- the wireless data compression device determines that the jth group of data does not carry a payload.
- each group of data in the M group data includes L 3 data, and the L 3 Each data in the data corresponds to one subcarrier, and L 3 is an integer greater than or equal to 1;
- Determining, by the wireless data compression device, whether the j-th group data carries a payload according to the threshold value and the j-th group data in the M-group data includes:
- L 3 data includes L 4 data whose value is greater than the threshold value, wherein the L 4 values are greater than the threshold value data is each of L 4 data Numerical values corresponding to the data subcarriers is greater than the threshold value, the data corresponding to each of the L sub-carriers of four data values to the vector L four data corresponding to the amplitude of each data subcarriers , L 4 is less than or equal to L 3 .
- each group of data in the M group data includes L 3 data, and the L 3 Each data in the data corresponds to one subcarrier, and L 3 is an integer greater than or equal to 1;
- Determining, by the wireless data compression device, whether the j-th group data carries a payload according to the threshold value and the j-th group data in the M-group data includes:
- the eleventh possible aspect of the first aspect is further provided
- the method for obtaining, by the wireless data compression device, the received message according to the ith group of data includes:
- the wireless data compression device generates, according to the ith set of data, first compression indication information, where the first compression indication information includes a group identifier of each group of data in the N sets of data and the N group of data A group identifier corresponding to each group of data, and a group of each group of data in the N group of data
- the indication information corresponding to the identifier is used to indicate whether the payload is carried, and the indication information corresponding to the group identifier of the i-th group data is used to indicate that the i-th group data does not carry a payload;
- the wireless data compression device generates second compression indication information according to the jth group data, where the second compression indication information includes a group identifier of each group of data in the M group data and each group in the M group data
- the indication information corresponding to the group identifier of the data, the indication information corresponding to the group identifier of each group of data in the M group data is used to indicate whether the payload is carried, and the indication information corresponding to the group identifier of the j-th group data is used to indicate The jth group of data does not carry a payload;
- the wireless data compression device carries the k 1 group data carrying the payload and the k carrying the payload in the M group data according to the first compression indication information and the second compression indication information
- the second set of data is encapsulated to generate the packet, where the packet includes the first payload, the second payload, and the quantity of the frequency domain data, where the number of the frequency domain data is the number of loads included in the packet,
- the first payload carries the first compression indication information and the k 1 group of data
- the second payload carries the second compression indication information and the k 2 group data
- the indication information includes the first compression
- the k 1 is an integer greater than or equal to 0
- the k 2 is an integer greater than or equal to 0.
- the first compression indication information is an N-bit bitmap
- the N-bit The position of the i-th bit of the bitmap in the N-bit bitmap is a group identifier of the i-th group of data
- the value of the i-th bit is indication information corresponding to the group identifier of the i-th group of data
- the second compression indication information is a bitmap of M bits, and a position of the jth bit of the M bit bitmap in the bitmap of the M bits is a group identifier of the jth group of data, where the The value of the j bit is the indication information corresponding to the group identifier of the jth group of data.
- a method for transmitting wireless data comprising:
- the wireless data decompressing device receives the packet, the packet is a packet generated according to the first frequency domain data, the first frequency domain data includes N sets of data, and N is an integer greater than or equal to 1, the newspaper
- the packet does not carry the i-th group data, the i-th group data does not carry a payload, and the i-th group data is one group data of the N group data, the packet includes indication information, and the indication information is used by On the table Showing that the i-th group data does not carry a payload;
- the wireless data decompressing device decompresses the packet according to the indication information included in the packet, and obtains decompressed first frequency domain data, and the decompressed first frequency domain data.
- the i-th group of data is included.
- the packet includes first compression indication information and k 1 group data that carries a payload in the N sets of data, where the first compression indication information is Instructing information, the first compression indication information includes a group identifier of each of the N sets of data and indication information corresponding to the group identifier, where the indication information corresponding to the group identifier is used to indicate that the group identifier corresponds to Whether the group carries a payload, and the indication information corresponding to the group identifier of the i-th group data is used to indicate that the i-th group data does not carry a payload, and the k 1 is an integer greater than or equal to 0;
- Decoding the packet according to the indication information included in the packet, and obtaining the decompressed first frequency domain data includes:
- the wireless data decompression device acquires the k 1 group data from the payload of the packet according to the first compression indication information included in the packet;
- the wireless data decompression device restores the i-th group data according to the indication information corresponding to the group identifier of the i-th group data included in the first compression indication information;
- the wireless data decompressing apparatus reorganizes the N sets of data according to the group identifier of the i-th group data and the group identifier of each set of data in the k 1 set of data, to obtain the first decompressed Frequency domain data.
- the second possible implementation manner of the second aspect is further provided, where the first compression indication information is an N-bit bitmap, and the N-bit bitmap The position of the i-th bit in the bitmap of the N-bit is the group identifier of the i-th group of data, and the value of the i-th bit is the indication information corresponding to the group identifier of the i-th group of data.
- the packet includes second compression indication information and k 1 group data carrying a payload in the N sets of data
- the second compression indication information is used to indicate the group identifier of the N group of data carrying the payload
- the second compression indication information includes each of the k 1 group of data.
- a group identifier of the group data wherein k 1 is an integer greater than or equal to 0;
- Decoding the packet according to the indication information included in the packet, and obtaining the decompressed first frequency domain data includes:
- the wireless data decompression device acquires the k 1 group data from the payload of the packet according to the second compression indication information included in the packet;
- the wireless data decompressing device restores the i-th group of data according to a value of N and a group identifier of each set of data in the k 1 set of data;
- the wireless data decompressing apparatus reorganizes the N sets of data according to the group identifier of the i-th group data and the group identifier of each set of data in the k 1 set of data, to obtain the decompressed first frequency domain data.
- the packet includes third compression indication information and k 1 group data carrying a payload in the N sets of data, where The third compression indication information is used to indicate the group identifier of the N group of data that does not carry the payload, and the third compression indication information includes the group of the i-th group of data. Identification that the k 1 is an integer greater than or equal to 0;
- Decoding the packet according to the indication information included in the packet, and obtaining the decompressed first frequency domain data includes:
- the wireless data decompressing device restores the i-th group data according to the group identifier of the i-th group data included in the third compression indication information;
- the wireless data decompressing apparatus reorganizes the N sets of data according to the group identifier of the i-th group data and the group identifier of each set of data in the k 1 set of data, to obtain the decompressed first frequency domain data.
- the implementation of the second aspect also provides the fifth possible implementation of the second aspect, and also includes:
- the wireless data decompressing apparatus performs inverse discrete Fourier transform on the decompressed first frequency domain data to obtain first time domain data;
- the wireless data decompressing device sends the first time domain data to a first device or a second device, where the first device is a device capable of implementing a digital baseband processing function, and the second device is capable of implementing a radio frequency function. device.
- the packet further includes second frequency domain data, where the second frequency domain data includes M group data, and the packet is not Carrying the jth group data, the jth group data does not carry a payload, the jth group data is a group data in the M group data, M is an integer greater than or equal to 1, and the indication information is further used Indicates that the jth group of data does not carry a payload;
- the method further includes:
- the wireless data decompressing device decompresses the packet according to the indication information included in the packet, and obtains decompressed second frequency domain data, and the decompressed second frequency domain data.
- the jth group of data is included.
- a seventh possible implementation manner of the second aspect is further provided, where the packet includes a first payload, a second payload, and a quantity of frequency domain data,
- the number of the frequency domain data is the number of the load included in the packet
- the first load includes the first compression indication information and the k 1 group data carrying the payload in the N sets of data, where the first compression indication information includes And the indication information corresponding to the group identifier of each group of data in the N group of data, and the indication information corresponding to the group identifier of each group of data in the N group data.
- the indication information corresponding to the group identifier of the i-th group data is used to indicate that the i-th group data does not carry a payload
- the second payload includes second compression indication information and the M group
- the data carries the k 2 group data of the payload, where the second compression indication information includes the group identifier of each group of data in the M group data and the indication information corresponding to the group identifier of each group of the M group data.
- the indication information corresponding to the group identifier of each group of data is used to indicate whether the payload is carried, and the indication information corresponding to the group identifier of the j-th group data is used to indicate that the j-th group data does not carry a payload,
- the second frequency domain data includes the M group data, M is an integer greater than or equal to 1, the indication information includes the second compression indication information and the first compression indication information, the k 1 and the k 2 is an integer greater than or equal to 0;
- Decoding the packet according to the indication information included in the packet, and obtaining the decompressed second frequency domain data includes:
- the wireless data decompression device acquires the k 2 group data from a second payload of the packet according to the second compression indication information included in the packet;
- the wireless data decompressing device restores the jth group of data according to the indication information corresponding to the group identifier of the jth group of data;
- the wireless data decompressing apparatus reorganizes the M group data according to the group identifier of the jth group data and the group identifier of each group of the k 2 group data, and obtains the decompressed second frequency Domain data.
- the first compression indication information is an N-bit bitmap
- the N-bit bitmap The position of the ith bit in the bitmap of the N bit is the group identifier of the ith group of data, and the value of the ith bit is the indication information corresponding to the group identifier of the ith group of data;
- the second compression indication information is a bitmap of M bits, and a position of the jth bit of the M bit bitmap in the bitmap of the M bits is a group identifier of the jth group of data, where the The value of the j bit is the indication information corresponding to the group identifier of the jth group of data.
- a wireless data compression apparatus including:
- a first obtaining unit configured to obtain first frequency domain data, where the first frequency domain data includes N sets of data, and N is an integer greater than or equal to 1;
- a first determining unit configured to determine, according to the threshold value and the i-th group data in the N sets of data, whether the i-th group data carries a payload, where the i-th group data is in the N-group data Any set of data;
- the first determining unit is further configured to determine that the i-th group data does not carry a payload
- a second obtaining unit configured to obtain, according to the ith group of data, a packet, where the packet is a packet generated according to the first frequency domain data, where the packet does not carry the i-th group of data,
- the message includes indication information, where the indication information is used to indicate that the i-th group data does not carry a payload;
- a sending unit configured to send the message.
- each of the N sets of data includes L 1 data, and each of the L 1 data corresponds to one subcarrier, and L 1 is greater than Or an integer equal to 1, the first determining unit is specifically configured to:
- L 1 data includes L 2 data whose value is greater than the threshold value, where the L 2 values are greater than the threshold value, and the data corresponding to the L 2 data is corresponding to the subcarrier. value is greater than the threshold value, the data corresponding to each of the L sub-carriers of two data values to the data L 2 vector magnitude values corresponding to each data sub-carriers, L 2 is less than or equal to L 1 .
- each of the N sets of data includes L 1 data, and each of the L 1 data corresponds to one
- the subcarrier, L 1 is an integer greater than or equal to 1
- the first determining unit is specifically configured to:
- the first possible implementation of the third aspect, or the second possible implementation of the third aspect a third possible implementation of the third aspect is further provided, the second obtaining The unit is specifically used to:
- first compression indication information where the first compression indication information includes a group identifier of each group of data in the N group of data and indication information corresponding to the group identifier, where the group identifier Corresponding indication information is used to indicate whether the group corresponding to the group identifier carries a payload, and the indication information corresponding to the group identifier of the i-th group data is used to indicate that the i-th group data does not carry a payload, the first Compressing the indication information as the indication information;
- a fourth possible implementation manner of the third aspect is further provided, where the first compression indication information is an N-bit bitmap, and the N-bit bitmap The position of the i-th bit in the bitmap of the N-bit is the group identifier of the i-th group of data, The value of the i-th bit is the indication information corresponding to the group identifier of the i-th group of data.
- the first possible implementation manner of the third aspect or the second possible implementation manner of the third aspect, the fifth possible implementation manner of the third aspect is further provided.
- the unit is specifically used to:
- Second compression indication information is used to indicate a group identifier that carries a payload in the N sets of data, where the second compression indication information includes k 1 group data. a group identifier of each group of data, wherein the k 1 group data is group data carrying a payload in the N group data, the k 1 is an integer greater than or equal to 0, and the second compression indication information is Descriptive information;
- the first possible implementation manner of the third aspect or the second possible implementation manner of the third aspect, the sixth possible implementation manner of the third aspect is further provided.
- the unit is specifically used to:
- third compression indication information is used to indicate a group identifier that does not carry a payload in the N group of data, where the third compression indication information includes the first a group identifier of the data of the i group, where the third compression indication information is the indication information;
- the wireless data compression apparatus further includes a receiving unit
- the receiving unit is configured to receive first time domain data, where the first time domain data is first antenna carrier data obtained from a first device or a second device, where the first device is capable of implementing digital baseband processing a device, the second device being a device capable of implementing a radio frequency function;
- the wireless data compression device performs discrete Fourier transform on the first time domain data to obtain The first frequency domain data.
- the wireless data compression also includes:
- a third obtaining unit configured to obtain second frequency domain data, where the second frequency domain data includes M group data, and M is an integer greater than or equal to 1;
- a second determining unit configured to determine, according to the threshold value and the jth group data in the M group data, whether the jth group data carries a payload, where the jth group data is in the M group data Any set of data;
- the second determining unit is further configured to determine that the jth group of data does not carry a payload.
- each group of data in the M group data includes L 3 data, and the L 3 Each data in the data corresponds to one subcarrier, and L 3 is an integer greater than or equal to 1;
- the second determining unit is specifically configured to:
- L 3 data includes L 4 data whose value is greater than the threshold value, where the L 4 values are greater than the threshold value, and the subcarriers corresponding to each data of the L 4 data are value is greater than the threshold value, the data corresponding to each of the L sub-carriers of four data values for said L four data vector magnitude values corresponding to each data sub-carriers, L 4 is less than or equal to L 3 .
- each group of data in the M group data includes L 3 data, and the L 3 Each data in the data corresponds to one subcarrier, and L 3 is an integer greater than or equal to 1;
- the second determining unit is specifically configured to:
- the L 3 subcarriers Determining whether the average value of L 3 L 3 corresponding to data subcarriers is greater than the preset threshold, the L 3 subcarriers to any one subcarrier of a value of the arbitrary subcarriers The value of the vector magnitude.
- the ninth possible implementation manner of the third aspect, or the tenth possible implementation manner of the third aspect, the eleventh aspect of the third aspect is further provided A possible implementation manner, the second obtaining unit is specifically configured to:
- first compression indication information where the first compression indication information includes a group identifier of each group of data in the N group data and a group identifier of each group of data in the N group data
- the indication information corresponding to the group identifier of each group of data in the N group of data is used to indicate whether to carry a payload
- the indication information corresponding to the group identifier of the i-th group data is used to represent the ith Group data does not carry a payload
- the second compression indication information includes a group identifier of each group of data in the M group data and a group identifier corresponding to each group of data in the M group data. Instructing information, the indication information corresponding to the group identifier of each group of data in the M group data is used to indicate whether to carry a payload, and the indication information corresponding to the group identifier of the j-th group data is used to represent the j-th group data Not carrying a payload;
- the k 1 group data carrying the payload in the N sets of data and the k 2 group data carrying the payload in the M group data, Generating the packet, where the packet includes the first payload, the second payload, and the quantity of the frequency domain data, where the number of the frequency domain data is the number of loads included in the packet, and the first payload carries the First compression indication information and the k 1 group data, the second payload carrying the second compression indication information and the k 2 group data, the indication information including the first compression indication information and the first
- the second compression indication information the k 1 is an integer greater than or equal to 0, and the k 2 is an integer greater than or equal to 0.
- the first compression indication information is an N-bit bitmap
- the N-bit The position of the i-th bit of the bitmap in the N-bit bitmap is a group identifier of the i-th group of data
- the value of the i-th bit is indication information corresponding to the group identifier of the i-th group of data
- the second compression indication information is a bitmap of M bits, and a position of the jth bit of the M bit bitmap in the bitmap of the M bits is a group identifier of the jth group of data, where the The value of the j bit is the indication information corresponding to the group identifier of the jth group of data.
- a wireless data decompression apparatus including:
- a receiving unit configured to receive a packet, where the packet is a packet generated according to the first frequency domain data,
- the first frequency domain data includes N sets of data, N is an integer greater than or equal to 1, the packet does not carry the i-th group of data, the i-th group of data does not carry a payload, and the i-th group of data is One of the N sets of data, the message includes indication information, where the indication information is used to indicate that the i-th group of data does not carry a payload;
- a decompressing unit configured to decompress the packet according to the indication information included in the packet, to obtain decompressed first frequency domain data, where the decompressed first frequency domain data includes The i-th group of data.
- the packet includes the first compression indication information and the k 1 group data that carries the payload in the N sets of data, where the first compression indication information is Instructing information, the first compression indication information includes a group identifier of each of the N sets of data and indication information corresponding to the group identifier, where the indication information corresponding to the group identifier is used to indicate that the group identifier corresponds to Whether the group carries a payload, and the indication information corresponding to the group identifier of the i-th group data is used to indicate that the i-th group data does not carry a payload, and the k 1 is an integer greater than or equal to 0;
- the decompression unit is specifically configured to:
- the second possible implementation manner of the fourth aspect is further provided, where the first compression indication information is an N-bit bitmap, and the N-bit bitmap The position of the i-th bit in the bitmap of the N-bit is the group identifier of the i-th group of data, and the value of the i-th bit is the indication information corresponding to the group identifier of the i-th group of data.
- the packet includes second compression indication information and k 1 group data carrying a payload in the N sets of data
- the second compression indication information is used to indicate the group identifier of the N group of data carrying the payload
- the second compression indication information includes each of the k 1 group of data.
- a group identifier of the group data wherein k 1 is an integer greater than or equal to 0;
- the decompression unit is specifically configured to:
- the packet includes third compression indication information and k 1 group data carrying a payload in the N sets of data, where The third compression indication information is used to indicate the group identifier of the N group of data that does not carry the payload, and the third compression indication information includes the group of the i-th group of data. Identification that the k 1 is an integer greater than or equal to 0;
- the decompression unit is specifically configured to:
- the wireless data decompression device further includes:
- an obtaining unit configured to perform inverse discrete Fourier transform on the decompressed first frequency domain data to obtain first time domain data
- a sending unit configured to send the first time domain data to a first device or a second device, where the first device is a device capable of implementing a digital baseband processing function, and the second device is capable of implementing a radio frequency Functional device.
- the packet further includes second frequency domain data, where the second frequency domain data includes M group data, and the packet is not Carrying the jth group data, the jth group data does not carry a payload, the jth group data is a group data in the M group data, M is an integer greater than or equal to 1, and the indication information is further used
- the decompression unit is further configured to:
- a seventh possible implementation manner of the fourth aspect is further provided, where the packet includes a first payload, a second payload, and a quantity of frequency domain data,
- the number of the frequency domain data is the number of the load included in the packet
- the first load includes the first compression indication information and the k 1 group data carrying the payload in the N sets of data, where the first compression indication information includes And the indication information corresponding to the group identifier of each group of data in the N group of data, and the indication information corresponding to the group identifier of each group of data in the N group data.
- the indication information corresponding to the group identifier of the i-th group data is used to indicate that the i-th group data does not carry a payload
- the second payload includes second compression indication information and the M group
- the data carries the k 2 group data of the payload, where the second compression indication information includes the group identifier of each group of data in the M group data and the indication information corresponding to the group identifier of each group of the M group data.
- the indication information corresponding to the group identifier of each group of data is used to indicate whether the payload is carried, and the indication information corresponding to the group identifier of the j-th group data is used to indicate that the j-th group data does not carry a payload,
- the second frequency domain data includes the M group data, M is an integer greater than or equal to 1, the indication information includes the second compression indication information and the first compression indication information, the k 1 and the k 2 is an integer greater than or equal to 0;
- the decompression unit is specifically configured to:
- the group identifier identifies the group of data sets j k 2, and the set of data of each data, said data set M recombination frequency domain to obtain a second decompressed data.
- an eighth possible implementation manner of the fourth aspect is further provided, where the first compression indication information is an N-bit bitmap, and the N-bit bitmap The position of the ith bit in the bitmap of the N bit is the group identifier of the ith group of data, and the value of the ith bit is the indication information corresponding to the group identifier of the ith group of data;
- the second compression indication information is a bitmap of M bits, and a position of the jth bit of the M bit bitmap in the bitmap of the M bits is a group identifier of the jth group of data, where the The value of the j bit is the indication information corresponding to the group identifier of the jth group of data.
- a fifth aspect a system for transmitting wireless data, comprising a wireless data compression device and a wireless data decompression device, wherein the wireless data compression device is any one of the foregoing third aspect or the third aspect A wireless data compression device provided by the method, wherein the wireless data decompression device is the wireless data decompression device provided by any one of the possible implementations of the fourth aspect or the fourth aspect.
- the wireless data compression apparatus determines the group data that does not carry the payload, for example, the i-th group data does not carry the payload, and the wireless data compression apparatus generates the message according to the first frequency domain data.
- the group data not carrying the payload is not added to the message, that is, the message obtained by the wireless data compression device does not include the ith group data.
- the wireless data compression device sends the message, the message includes indication information, and the indication information is used to indicate that the i-th group data does not carry a payload.
- the wireless data decompressing device After receiving the packet, the wireless data decompressing device decompresses the packet according to the indication information included in the packet, and obtains the decompressed first frequency domain data, where the solution
- the compressed first frequency domain data includes the i-th group of data. In this way, the wireless data compression device does not need to transmit the group data that does not carry the payload, and the group data that does not carry the payload does not need to occupy the corresponding bandwidth, which helps to reduce the bandwidth requirement.
- FIG. 1(a) is a schematic diagram of a network scenario for transmitting wireless data.
- Figure 1 (b) is a schematic diagram of a subcarrier represented in the form of a resource grid.
- FIG. 2 is a schematic diagram of a network scenario for transmitting wireless data according to Embodiment 1 of the present invention.
- FIG. 3(a) is a schematic diagram of a wireless data compression apparatus according to Embodiment 1 of the present invention.
- FIG. 3(b) is a schematic diagram of a wireless data compression apparatus according to Embodiment 1 of the present invention.
- FIG. 3(c) is a schematic diagram of a wireless data compression apparatus according to Embodiment 1 of the present invention.
- FIG. 4(a) is a schematic diagram of a wireless data decompressing apparatus according to Embodiment 1 of the present invention.
- FIG. 4(b) is a schematic diagram of a wireless data decompressing apparatus according to Embodiment 1 of the present invention.
- FIG. 5 is a flowchart of a method for transmitting wireless data according to Embodiment 1 of the present invention.
- FIG. 6 is a flowchart of a method for transmitting wireless data according to Embodiment 1 of the present invention.
- FIG. 7(a) is a schematic diagram of an N-bit bitmap provided by an embodiment of the present invention.
- FIG. 7(b) is a schematic diagram of second compression indication information according to an embodiment of the present invention.
- FIG. 7(c) is a schematic diagram of a format of a message according to an embodiment of the present invention.
- FIG. 7(d) is a schematic diagram showing the format of another message according to an embodiment of the present invention.
- FIG. 8 is a flowchart of a method for transmitting wireless data according to Embodiment 1 of the present invention.
- FIG. 9 is a schematic diagram of a network scenario for transmitting wireless data according to Embodiment 2 of the present invention.
- FIG. 10(a) is a schematic diagram of a wireless data compression apparatus according to Embodiment 2 of the present invention.
- FIG. 10(b) is a schematic diagram of a wireless data compression apparatus according to Embodiment 2 of the present invention.
- FIG. 10(c) is a schematic diagram of a wireless data compression apparatus according to Embodiment 2 of the present invention.
- FIG. 11(a) is a schematic diagram of a wireless data decompressing apparatus according to Embodiment 2 of the present invention.
- FIG. 11(b) is a schematic diagram of a wireless data decompressing apparatus according to Embodiment 2 of the present invention.
- FIG. 12 is a flowchart of a method for transmitting wireless data according to Embodiment 2 of the present invention.
- FIG. 13 is a flowchart of a method for transmitting wireless data according to Embodiment 2 of the present invention.
- FIG. 14 is a schematic diagram of a system for transmitting wireless data according to an embodiment of the present invention.
- FIG. 1(a) is a schematic diagram of a network scenario for transmitting wireless data.
- the network shown in FIG. 1(a) includes an evolved packet core (EPC), a baseband unit (BBU) 10, a remote radio unit (RRU) 13, and a connection RRU 13. antenna.
- the BBU 10 receives data transmitted through the EPC, such as Internet data.
- the BBU 10 performs baseband processing on the received data to obtain frequency domain data.
- the frequency domain data may be a subcarrier represented by a resource grid (English name: resource grid) in the 3GPP TS36.211 standard, as shown in FIG. 1(b).
- the resource grid shown in Figure 1(b) includes a resource block consisting of 7 consecutive cycles (the English name is a resource block), and one cycle of each resource block includes 12 resource elements in a frequency domain (the English name is resource). Element). Each resource element corresponds to one subcarrier.
- the resource block shown in Figure 1(b) contains 7 columns, each column representing a cycle of a resource block.
- the resource block of each cycle contains 12 resource elements, that is, the smallest cell in Figure 1(b) represents a resource element.
- the one resource element may carry a subcarrier represented in a plural form. If multiple subcarriers in the frequency domain are 0, the subcarrier with a value of 0 still occupies a resource element, and the value of the resource element is 0.
- the BBU 10 performs inverse discrete Fourier transform (integrally called Inverse Discrete Fourier Transform, abbreviated as IDFT) on the resource grid as shown in FIG. 1(b) to generate time domain data.
- IDFT Inverse Discrete Fourier Transform
- the BBU 10 encapsulates the time domain data into a Common Public Radio Interface (CPRI) to obtain a CPRI frame.
- CPRI Common Public Radio Interface
- the BBU 10 transmits a CPRI frame to the RRU 13 through the CPRI set to the BBU 10.
- the transmission between the BBU 10 and the RRU 13 uses CPRI transmission, which requires a large amount of bandwidth, because even if only a small number of subcarriers transmit payload in the frequency domain, the subcarriers in the frequency domain that do not carry the payload are obtained after IDFT.
- the time domain data is also represented as valid data in the time domain. That is, the time domain data transmitted between the BBU 10 and the RRU 13 does not distinguish between the payload and the invalid payload.
- the time domain data transmitted between the BBU 10 and the RRU 13 requires constant bandwidth transmission, and the network construction cost is high.
- the wireless data compression device obtains the first frequency domain data, the first frequency
- the domain data includes N sets of data, and N is an integer greater than or equal to 1;
- the wireless data compression device determines, according to the threshold value and the N sets of data, whether the i-th data in the N sets of data carries a payload,
- the ith group data is any one of the N sets of data;
- the wireless data compression device determines that the ith group data does not carry a payload; and the wireless data compression device is configured according to the ith group data
- the wireless data compression device transmits the message to a wireless data decompressing device.
- the wireless data compression device may be deployed in a first device, and correspondingly, the wireless data decompression device may be deployed in a second device in communication with the first device, or the wireless data The decompression device may be deployed as a separate device between the first device and the second device, or the wireless data decompression device may be deployed between the first device and the second device and The device communication of the second device.
- the first device is a device capable of implementing a digital baseband processing function, such as a BBU or a device capable of implementing wireless device control (referred to as Radio Equipment Control, REC for short).
- the second device is a device capable of implementing a radio frequency function, such as an RRU or a device capable of implementing a wireless device (referred to as Radio Equipment, abbreviated as RE in English).
- the wireless data compression device may be deployed in a second device, and correspondingly, the wireless data decompression device may be deployed in a first device in communication with the second device, or the wireless device The data decompression device may be deployed as a separate device between the second device and the first device, or the wireless data decompression device may be deployed between the second device and the first device and The device of the first device communicates.
- the first device is a device capable of implementing a digital baseband processing function, such as a BBU or a device capable of implementing an REC function.
- the second device is a device capable of implementing a radio frequency function, such as an RRU or a device capable of implementing an RE function.
- FIG. 2 is a schematic diagram of a network scenario for transmitting wireless data according to Embodiment 1 of the present invention.
- the network shown in Figure 2 can be used to transmit wireless data.
- the first device 20 is capable of Communicate with devices in the EPC (not shown in Figure 2).
- the first device 20 is in communication with the convergence side compression device 21.
- the aggregation side compression device 21 communicates with the access side compression device 22, for example, the aggregation side compression device 21 can communicate with the access side compression device 22 through the packet network, and the aggregation side compression device 21 can also communicate with the access side compression device 22 through the optical fiber. .
- the aggregation side compression device 21 includes a first CPRI 210, a discrete Fourier transform (referred to as a duplicate fourier transform, DFT for short) module 211, a wireless data compression device 212, a first interface 213, a wireless data decompressing device 214, and an IDFT module. 215.
- the access side compression device 22 includes a second CPRI 220, a second DFT module 225, a wireless data compression device 224, a second interface 223, a wireless data decompression device 222, and a first IDFT module 221.
- the first CPRI 210 may be the same as the second CPRI 220, the first interface 213 may be the same as the second interface 223, the first DFT module 211 may be the same as the second DFT module 225, and the second IDFT module 215 may be the first IDFT module 221 Similarly, wireless data compression device 212 can be the same as wireless data compression device 224, and wireless data decompression device 214 can be identical to wireless data decompression device 222.
- the first device 20 transmits the time domain data to the first DFT module 211 via the first CPRI 210 of the convergence measurement compression device 21.
- the first DFT module 211 generates frequency domain data after performing a DFT operation on the time domain data, and the frequency domain data includes at least one set of data.
- the first DFT module 211 transmits the generated frequency domain data to the wireless data compression device 212.
- the wireless data compression device 212 compresses the received frequency domain data to generate a message, the message does not include the i-th group of data in the frequency domain data that does not carry a payload, and the message includes indication information, the indication The information is used to indicate that the i-th group of data does not carry a payload, and the i-th group of data is any one of the at least one set of data.
- the wireless data compression device 212 transmits the message to the second interface 223 via the first interface 213.
- the wireless data decompressing device 222 of the access side compression device 22 receives the message through the second interface 223.
- the wireless data decompressing device 222 decompresses the message to restore the i-th group of data that does not carry the payload.
- the wireless data decompressing device 222 obtains the decompressed frequency domain data according to the group data carrying the payload and the i-th data not carrying the payload in the at least one group of data included in the packet.
- the wireless data decompressing means 222 transmits the decompressed frequency domain data to the first IDFT module 221.
- the first IDFT module 221 performs IDFT operations on the decompressed frequency domain data. Generate time domain data after creation.
- the first IDFT module 221 transmits the time domain data to the second device 23 through the second CPRI 220.
- the second device 23 may compress the device 21 on the convergence side by the second CPRI 220, the second DFT module 225, the wireless data compression device 224, and the second interface 223 included in the access side compression device 22.
- the first interface 213 sends a packet, the packet does not include group data that does not carry a payload, and the packet includes indication information, where the indication information is used to indicate group data that does not carry a payload.
- the wireless data decompressing device 214 of the convergence side compression device 21 decompresses the message received through the first interface 213 to obtain decompressed frequency domain data.
- the wireless data decompressing means 214 transmits the time domain data corresponding to the decompressed frequency domain data to the first device 20 through the second IDFT module 215 and the first CPRI interface.
- the communication between the first device 20 and the second device 23 can be divided into a downlink direction and an uplink direction.
- the downlink direction is a direction in which the first device 20 sends data to the second device 23 via the convergence side compression device 21 and the access side compression device 22, and correspondingly, the uplink direction is the second device.
- the direction of data is transmitted to the first device 20 via the access side compression device 22 and the aggregation side compression device 21.
- the downlink direction is a direction in which the second device 23 sends data to the first device 20 via the access side compression device 22 and the convergence side compression device 21, and correspondingly, the uplink direction is the first direction.
- the device 20 transmits the direction of the data to the second device 23 via the convergence side compression device 21 and the access side compression device 22.
- the convergence side compression device 21 and the access side compression device 22 in FIG. 2 enable bidirectional communication between the first device 20 and the second device 23. If the convergence side compression device 21 and the access side compression device 22 implement one-way communication between the first device 20 and the second device 23, the aggregation side compression device 21 and the access side compression device 22 may include the partial structure in FIG. For example, if the aggregation side compression device 21 and the access side compression device 22 enable the first device 20 to transmit data or information to the second device 23, the aggregation side compression device 21 includes the first CPRI 210, the first DFT module 211, and the wireless data.
- the access side compression device 22 includes a second CPRI 220, a second interface 223, a wireless data decompression device 222, and a first IDFT module 221. If the access side compression device 22 and the aggregation side compression device 21 enable the second device 23 to transmit data or information to the first device 20, then the access side compression device 22 includes a second CPRI 220, a second DFT module 225, a wireless data compression device 224, and a second interface 223. Accordingly, the aggregation side compression device 21 includes a first CPRI 210, a first interface 213, and wireless data decompression. Device 214 and second IDFT module 215.
- the first DFT module 211 can be a circuit with DFT function, an integrated circuit, a field editable gate array (in English, a field programmable gate array, referred to as an FPGA), and a central processing unit (referred to as a central processing unit in English).
- the CPU software or code that can implement DFT.
- the second DFT module 225 may be a circuit having a DFT function, an integrated circuit, an FPGA, a CPU, software or code capable of implementing DFT.
- the second IDFT module 215 may be a circuit having an IDFT function, an integrated circuit, an FPGA, a CPU, software or code capable of implementing IDFT.
- the first IDFT module 221 may be a circuit having an IDFT function, an integrated circuit, an FPGA, a CPU, software or code capable of implementing IDFT.
- FIG. 3(a) is a schematic diagram of a wireless data compression apparatus according to Embodiment 1 of the present invention.
- the wireless data compression device shown in FIG. 3(a) may be any one of the wireless data compression devices in the network shown in FIG. 2.
- the wireless data compression apparatus shown in FIG. 3(a) includes a processor 301, a memory 302, a communication interface 303, and a communication bus 304.
- Processor 301, memory 302, and communication interface 303 communicate over communication bus 304.
- the processor 301 can be a central processing unit (known in English as a central processing unit, abbreviated as CPU), a network processor (referred to as a network processor in English, abbreviated as NP) or other integrated circuits.
- Memory 302 can be used to store programs or code.
- the memory 302 is further configured to store one or more of the indication information, such as the first compression indication information and the second compression indication information, and the compression indication information mentioned in the embodiment of the present invention. Description.
- the processor 301 performs the following operations in accordance with executable instructions included in the program read from the memory 302.
- the processor 301 obtains the first frequency domain data through the communication interface 303.
- the first frequency domain data includes N sets of data, and N is an integer greater than or equal to 1.
- Each of the N sets of data includes L 1 data, each of the L 1 data corresponds to one subcarrier, and L 1 is an integer greater than or equal to 1.
- the value of L 1 may be 12, and may be other values, which will not be exemplified herein.
- the processor 301 determines, according to the threshold value and the i-th group data in the N sets of data, whether the i-th group data carries a payload, and the i-th group data is any one of the N sets of data. .
- i is an integer greater than 0 and less than or equal to N.
- the processor 301 determines whether the i-th group data carries a payload according to the threshold value and the i-th group data in the N-group data.
- the processor 301 can determine the threshold according to the method in the embodiment corresponding to FIG. 6, and the method for determining the threshold is not described herein again.
- a mode, and a threshold value processor 301 according to the N groups of data, determining whether the data set N i-th group of data carrying payload comprises: a processor 301 determines whether to L 1 L 2 th data comprises a value greater than the threshold value, wherein the L 2 values are greater than the threshold value, and the value of the subcarrier corresponding to each data of the L 2 data is greater than the threshold value, and the L 2 is The value of the subcarrier corresponding to each data of the data is the value of the vector magnitude of the subcarrier corresponding to each data of the L 2 data, and L 2 is an integer greater than 0 and less than or equal to L 1 .
- the processor 301 determines that the L-th data does not include L 2 data whose value is greater than the threshold. If the processor 301 determines that the i-th data does not carry a payload. If the processor 301 determines that the ith set of data includes L 2 data having a value greater than the threshold, the processor 301 determines that the ith set of data carries a payload.
- the threshold value processor 301 and the N groups of data determining whether the data set N i-th group of data carries a payload comprising: determining processor 301 to L 1 L 1 of data corresponding to sub Whether the average value of the carrier values is greater than the threshold value, and the value of any one of the L 1 subcarriers is a value of a vector magnitude of the any one of the subcarriers. If the average value of the processor 301 determines to L 1 L 1 of data corresponding to sub-carriers is greater than the threshold value, the processor 301 determines that the i-th group of data carried in the payload. If processor 301 determines to L 1 L 1 of data corresponding to the average value of subcarriers less than or equal to the threshold value, the processor 301 determines that the i-th group of data carries no payload.
- the processor 301 determines that the i-th group of data does not carry a payload.
- the processor 301 can determine that the i-th group data does not carry a payload by using any one of the foregoing two manners.
- Processor 301 may determine whether each of the N sets of data carries a payload by using any one of the above two manners.
- the embodiment of the present invention is an example in which the i-th group data is taken as an example. Here, the method of determining whether other group data in the N sets of data carries a payload is not described again.
- the processor 301 obtains a packet according to the ith group of data, where the packet is a packet generated according to the first frequency domain data, and the packet does not carry the ith group data, the packet
- the indication information is used to indicate that the ith group data does not carry a payload.
- the manner in which the processor 301 obtains a message according to the ith group of data may be the following three types.
- the processor 301 obtains a message according to the ith group of data, and the processor 301 generates, according to the ith group of data, first compression indication information, where the first compression indication information is used to indicate the N group.
- the indication information corresponding to the group identifier is used to indicate whether the group corresponding to the group identifier carries a payload
- the indication information corresponding to the group identifier of the i-th group data is used to indicate that the i-th group data does not carry a payload
- the first compression indication information is the indication information
- the processor 301 encapsulates the k 1 group data carrying the payload in the N sets of data according to the first compression indication information, and generates the packet, where the report
- the text includes the first compression indication information and the k 1 group data, and
- the first compression indication information is a bitmap of N bits, and the position of the i-th bit of the N-bit bitmap in the bitmap of the N-bit is a group identifier of the i-th group of data, The value of the i-th bit is the indication information corresponding to the group identifier of the i-th group of data.
- the processor 301 obtains the message according to the ith group of data, and the processor 301 generates the second compression indication information according to the ith group of data, where the second compression indication information is used to indicate the N group.
- group identifier carried in the data payload the second compression indication information comprises a group identification data each set of data k 1, k 1 the set of the N sets of data carried in the data payload set of data, The k 1 is an integer greater than or equal to 0, and the second compression indication information is the indication information; the processor 301 encapsulates the k 1 group of data according to the second compression indication information, to generate the a message, the message including the second compression indication information and the k 1 group of data. In this way, the storage space occupied by the indication information in the memory 302 can be reduced, which is advantageous for improving the processing speed and efficiency.
- the processor 301 obtains the message according to the ith group of data, and the processor 301 generates third compression indication information according to the ith group of data, where the third compression indication information is used to indicate the N group.
- the group identifier of the payload is not carried in the data
- the third compression indication information includes a group identifier of the i-th group of data
- the third compression indication information is the indication information
- the processor 301 is configured according to the third compression. Instructing information, the k 1 group data carrying the payload in the N sets of data is encapsulated, and the packet is generated, where the packet includes the third compression indication information and the k 1 group data, the k 1 is an integer greater than or equal to 0. In this way, the storage space occupied by the indication information in the memory 302 can be reduced, which is advantageous for improving the processing speed and efficiency.
- the processor 301 transmits the message to the wireless data decompressing device via the communication interface 303.
- the wireless data compression device shown in FIG. 3(a) is the wireless data compression device 212 in the network shown in FIG. 2. Accordingly, the wireless data decompression device is decompressed for wireless data in the network shown in FIG. 2.
- the wireless data compression device shown in FIG. 3(a) is the wireless data compression device 224 in the network shown in FIG. 2. Accordingly, the wireless data decompressing device shown is the wireless data decompression in the network shown in FIG. 2.
- the processor 301 can send the message to the wireless data decompressing device through the packet network through the communication interface 303.
- the processor 301 can also send the report to the wireless data decompressing device through the communication interface 303 and the optical fiber. Text.
- the packet network may be a network capable of transmitting data and/or information in a message manner.
- the processor 301 may determine, according to a threshold value, whether each set of data in the N sets of data carries a payload to determine group data that does not carry a payload, such as the i-th group. data.
- the message obtained by the processor 301 includes the group data carrying the payload and does not include the group data that does not carry the payload, and the processor 301 sends the message carrying the first frequency domain data to the wireless data decompressing device, which helps Reduce bandwidth requirements and network construction costs.
- the processor 301 is further configured to obtain an identifier of a logical pipe corresponding to the first frequency domain data, where the identifier of the logical pipe is used to identify the wireless data decompression device and the wireless data compression device Logical pipeline.
- the logical pipeline may be the wireless data compression device and the A logical link between the wireless data decompressing devices or a tunnel between the wireless data compressing device and the wireless data decompressing device (English name is tunnel).
- the identifier of the logical pipe is an identifier of a virtual local area network (referred to as a virtual local area network, abbreviated as VLAN) to which the wireless data decompressing device belongs, and a multi-protocol label exchange allocated by the wireless data decompressing device.
- VLAN virtual local area network
- the virtual network identifier (referred to as the MPLS) label or the virtual extended local area network (referred to as Virtual Extensible LAN, VXLAN in English) of the wireless data decompressing device (referred to as virtual network identifier in English) VNID).
- the processor 301 can add the identifier of the logical pipe to the message header of the message.
- the processor 301 is further configured to receive first time domain data, where the first time domain data is from the first antenna carrier data from the first device 20 or the second device 23.
- the processor 301 can also perform DFT on the first time domain data to obtain the first frequency domain data.
- the wireless data compression apparatus shown in FIG. 3(a) is capable of processing at least two frequency domain data, that is, the processing in the wireless data compression apparatus shown in FIG. 3(a).
- the executable 301 may perform the following operations in addition to the executable instructions included in the program read from the memory 302 in accordance with the executable instructions included in the read program.
- the processor 301 obtains second frequency domain data, the second frequency domain data includes M sets of data, and M is an integer greater than or equal to 1.
- Each of the M sets of data includes L 3 data, each of the L 3 data corresponds to one subcarrier, and L 3 is an integer greater than or equal to 1.
- the value of L 3 may be 12, and may be other values, which will not be exemplified herein.
- the processor 301 determines, according to the threshold value and the jth group data in the M group data, whether the jth group data carries a payload, and the jth group data is any one of the M group data. .
- the method by which the processor 301 determines whether the jth group of data carries a payload is the same as the method of determining whether the i-th group of data carries a payload.
- the processor 301 according to the threshold value and the second set of data M j sets of data, determining whether the j-th group of data carrying payload comprises: a processor 301 determines whether the data includes L 3 L 4 Data having a value greater than the threshold value, wherein the L 4 values are greater than the threshold value, and the value of the subcarrier corresponding to each data of the L 4 data is greater than the threshold value, the L each data value of each data sub-carriers corresponding to four data L 4 is the data vector magnitude values corresponding to sub-carriers, L 4 is greater than 0 and less than or equal to the integer L 3.
- the processor 301 determines the j-th set of data does not include data L 4 is greater than the numerical values of the threshold value, the processor 301 determines that the j th group of data carries no payload. If the processor 301 determines the second set of data includes data j L 4 numerical values greater than the threshold value, the processor 301 determines that the j th group of data carry payload.
- the threshold value processor 301 and the set of data M j-th group of data, determining whether the j-th group of data carrying payload comprises: a processor 301 determines that the data corresponding to the L 3 L 3 Whether the average value of the values of the subcarriers is greater than the preset threshold value, and the value of any one of the L 3 subcarriers is a value of the vector magnitude of the any one of the subcarriers. If the processor 301 determines an average value L 3 of the j-th data set comprising data corresponding to the L 3 subcarriers is less than or equal to the threshold value, the processor 301 determines the set of data that do not carry the j Payload. If the processor 301 determines an average value L 3 of the j-th data set comprising data corresponding to the L 3 subcarriers is greater than the threshold value, the processor 301 determines the j-th group of data carrying payload.
- the processor 301 can obtain the following three types of messages.
- the processor 301 obtains a message according to the ith group of data, and the processor 301 generates, according to the ith group of data, first compression indication information, where the first compression indication information is used to indicate the N group.
- the indication information corresponding to the group identifier, the indication information corresponding to the group identifier of each group of data in the N group of data is used to indicate whether the payload is carried, and the indication information corresponding to the group identifier of the i-th group data is used to indicate the The i-th group of data does not carry a payload; the processor 301 generates, according to the j-th group of data, second compression indication information, where the second compression indication information is used to indicate the group data of the M-group data carrying the payload.
- the second compression indication information includes group identifiers of each group of data in the M group data and indication information corresponding to group identifiers of each group of data in the M group data,
- the indication information corresponding to the group identifier of each group of data in the M group data is used to indicate whether the payload is carried, and the indication information corresponding to the group identifier of the j-th group data is used to indicate that the j-th group data does not carry the payload;
- the processor 301 according to the first compression indication information and the second compression indication information, the k 1 group data carrying the payload in the N sets of data and the k 2 group data carrying the payload in the M group data Encapsulating, generating the packet, where the packet includes a first payload, a second payload, and a quantity of frequency domain data, where the number of the frequency domain data is a quantity of the load included in the packet, the first payload And carrying the first compression indication information and the k 1 group data, where the second payload
- the first compression indication information is an N-bit bitmap, and the position of the ith bit of the N-bit bitmap in the N-bit bitmap is the ith group a group identifier of the data, the value of the i-th bit is indication information corresponding to the group identifier of the i-th group data;
- the second compression indication information is a bitmap of M bits, and the bitmap of the M-bit bitmap The position of the j bit in the bitmap of the M bit is the group identifier of the jth group of data, and the value of the jth bit is the indication information corresponding to the group identifier of the jth group of data.
- the processor 301 obtains the message according to the ith group of data, and the processor 301 generates third compression indication information according to the ith group of data, where the third compression indication information is used to indicate the N group.
- group identifier carried in the data payload a third compression indication information comprises a group identification data each set of data k 1, k 1 the set of the N sets of data carried in the data payload set of data, the k 1 is an integer equal to or greater than 0;
- j processor 301 based on the first set of data, generating a fourth compression indication information, the fourth compression indication information indicates the M groups of data carried in the payload of group identifier, the fourth compression indication information comprises a group identifier k of the two sets of data each set of data, said 2 k groups of data to the set of data carrying payload data group M, k 2 is greater than the Or an integer equal to 0;
- the processor 301 encapsulates the k 1 group data and the k 2 group data according to the third compression indication information
- the processor 301 obtains the packet according to the ith group of data, and the processor 301 generates, according to the ith group of data, fifth compression indication information, where the fifth compression indication information is used to indicate the N group.
- the group identifier of the payload is not carried in the data
- the fifth compression indication information includes a group identifier of the i-th group of data
- the processor 301 generates sixth compression indication information according to the j-th group data
- the sixth The compression indication information is used to indicate a group identifier that does not carry a payload in the M group data
- the sixth compression indication information includes a group identifier of the jth group data
- the processor 301 is configured according to the fifth compression indication information and
- the sixth compression indication information, the k 1 group data and the k 2 group data are encapsulated to generate the packet, where the payload of the packet carries the fifth compression indication information, the sixth Compressing indication information, the k 1 set of data, and the k 2 set of data.
- the wireless data compression apparatus implements transmission of the first frequency domain data and the second frequency domain data by transmitting the message, thereby improving data transmission efficiency.
- FIG. 3(b) is a schematic diagram of a wireless data compression apparatus according to Embodiment 1 of the present invention.
- the wireless data compression apparatus shown in FIG. 3(b) includes a first obtaining unit 305, a first determining unit 306, a second obtaining unit 307, and a transmitting unit 308.
- the wireless data compression apparatus shown in FIG. 3(b) further includes: a third obtaining unit 310 and a second determining unit 311.
- the wireless data compression device shown in FIG. 3(b) and the wireless data compression device shown in FIG. 3(a) may be the same device, such as the wireless data compression device 212 or the wireless data compression device in the network shown in FIG. 2. 224. It can be considered that Fig. 3(a) shows the content included in one wireless data compression device from a physical point of view, and Fig. 3(b) shows the content included in a wireless data compression device from a logical point of view.
- the transmitting function of the transmitting unit 308 in FIG. 3(b) can be completed by the processor 301 and the communication interface 303 in FIG. 3(a), and the communication interface 303 can include at least one physical interface.
- the first obtaining unit 305, the first determining unit 306, and the second obtaining unit 307 in FIG. 3(b) may be implemented by the processor 301 in FIG. 3(a) according to executable instructions stored in the memory 302, and the processor 301 At least one physical processor can be included.
- the third in Figure 3(b) The obtaining unit 310 and the second determining unit 311 can be implemented by the processor 301 in FIG. 3(a) according to executable instructions stored in the memory 302. The contents repeated in FIG. 3(b) and FIG. 3(a) are not described in detail in the embodiment corresponding to FIG. 3(b).
- the first obtaining unit 305 is configured to obtain first frequency domain data, where the first frequency domain data includes N sets of data, and N is an integer greater than or equal to 1.
- the first determining unit 306 is configured to determine, according to the threshold value and the N sets of data, whether the i-th group data in the N sets of data carries a payload, where the i-th group data is in the N-group data. Any set of data.
- the first determining unit 306 may determine the threshold according to the method in the embodiment corresponding to FIG. 6, and the method for determining the threshold is not described herein again.
- the first determining unit 306 is configured to determine that the i-th group data does not carry a payload.
- the second obtaining unit 307 is configured to obtain, according to the ith group of data, a packet, where the packet is a packet generated according to the first frequency domain data, where the packet does not carry the ith group Data, the message includes indication information, where the indication information is used to indicate that the i-th group of data does not carry a payload.
- the sending unit 308 is configured to send the message to the wireless data decompressing device.
- the wireless data decompressing apparatus is the same as the wireless data decompressing apparatus mentioned in the embodiment corresponding to FIG. 3(a), and details are not described herein again.
- each of the N sets of data includes L 1 data, each of the L 1 data corresponds to one subcarrier, and L 1 is an integer greater than or equal to 1, the first determining The unit 306 is specifically configured to determine whether the L 1 data includes L 2 data whose value is greater than the threshold value, where the L 2 data greater than the threshold value is each data of the L 2 data. corresponding values of subcarriers is greater than the threshold value, each of the L sub-carrier data corresponding to two data values to the vector magnitude value of each sub-carrier data corresponding to the data L 2, L 2 is less than or equal to L 1 .
- each of the N sets of data includes L 1 data, each of the L 1 data corresponds to one subcarrier, and L 1 is an integer greater than or equal to 1, the first determining whether the average value determining unit 306 is specifically configured to L 1 L 1 of data corresponding to sub-carriers is greater than the threshold value, to L 1 sub-carriers to any one subcarrier of the value of any one sub- The value of the vector magnitude of the carrier.
- the second obtaining unit 307 is specifically configured to generate first compression indication information according to the ith group data, where the first compression indication information is used to indicate group data of the N group of data carrying a payload. And the group data that does not carry the payload, the first compression indication information includes a group identifier of each group of the N groups of data and indication information corresponding to the group identifier, where the indication information corresponding to the group identifier is used for Indicates whether the group corresponding to the group identifier carries a payload, and the indication information corresponding to the group identifier of the i-th group data is used to indicate that the i-th group data does not carry a payload, and the first compression indication information is The second obtaining unit 307 is configured to encapsulate, according to the first compression indication information, the k 1 group data carrying the payload in the N sets of data, to generate the packet, where the packet is sent.
- the first compression indication information and the k 1 group data are included, and the k 1 is an integer greater than or equal to 0.
- the first compression indication information is a bitmap of N bits, and the position of the i-th bit of the N-bit bitmap in the bitmap of the N-bit is a group identifier of the i-th group of data, The value of the i-th bit is the indication information corresponding to the group identifier of the i-th group of data.
- the second obtaining unit 307 is specifically configured to generate, according to the ith group of data, second compression indication information, where the second compression indication information is used to indicate a group identifier of the N group of data carrying a payload.
- said second compression indication information identifying the group comprising k 1 sets of data each set of data, said set of data k 1 to N sets of said sets of data carried in the data payload, the greater than or equal to k 1 is an An integer of 0,
- the second compression indication information is the indication information
- the second obtaining unit 307 is specifically configured to encapsulate the k 1 group of data according to the second compression indication information, and generate the report
- the message includes the second compression indication information and the k 1 group data.
- the second obtaining unit 307 is specifically configured to generate third compression indication information according to the ith group data, where the third compression indication information is used to indicate a group that does not carry a payload in the N group data.
- the third compression indication information includes a group identifier of the ith group of data, where the third compression indication information is the indication information, and the second obtaining unit 307 is specifically configured to use the third compression indication.
- the information is encapsulated by the k 1 group data carrying the payload in the N sets of data, and the packet is generated, where the packet includes the third compression indication information and the k 1 group data, where k 1 Is an integer greater than or equal to 0.
- the packet header of the packet carries CPRI indication information, and the CPRI indication information
- the load for indicating the packet carries CPRI control information
- the payload of the packet further carries the CPRI control information. If the wireless data compression device is in communication with the first device 20, the CPRI control information is control word information in a CPRI frame transmitted by the first device 20. If the wireless data compression device is in communication with the second device 23, the CPRI control information is control word information in a CPRI frame transmitted by the second device 23.
- the first determining unit 306 determines, according to the threshold value, whether each set of data in the N sets of data carries a payload, to determine group data that does not carry a payload, such as the ith. Group data.
- the message obtained by the second obtaining unit 307 includes only the group data carrying the payload.
- the sending unit 308 sends the packet carrying the first frequency domain data to the wireless data decompressing device in the form of a packet, which helps reduce bandwidth requirements and network construction costs.
- the wireless data compression device shown in FIG. 3(b) further includes a receiving unit.
- the receiving function of the receiving unit can be completed by the processor 301 and the communication interface 303 in FIG. 3(a).
- the receiving unit is configured to receive first time domain data, where the first time domain data is first antenna carrier data obtained from the first device 20 or the second device 23; the first obtaining unit 305 is specifically configured to The first time domain data is DFT, and the first frequency domain data is obtained.
- the wireless data compression apparatus shown in FIG. 3(b) can process at least two frequency domain data, that is, the wireless data compression apparatus shown in FIG. 3(b) can perform the foregoing pair.
- the wireless data compression apparatus shown in FIG. 3(b) can also obtain the second frequency domain data, and carry the second frequency domain data in the message and send it to the Corresponding wireless data decompression device.
- the second frequency domain data includes M sets of data. Each of the M sets of data includes L 3 data, each of the L 3 data corresponds to one subcarrier, and L 3 is an integer greater than or equal to 1.
- the wireless data compression apparatus may further include the third obtaining unit 310 and the second determining unit 311.
- the third obtaining unit 310 is configured to obtain second frequency domain data, where the second frequency domain data includes M sets of data, and M is an integer greater than or equal to 1.
- the values of M and N may be the same, and the values of M and N may be different.
- M may be an integer multiple of N, which is not limited herein.
- the second determining unit 311 is configured to determine, according to the threshold value and the jth group data in the M group data, whether the jth group data carries a payload, where the jth group data is in the M group data. Any set of data.
- the second determining unit 311 is further configured to determine that the jth group of data does not carry a payload.
- the second determining unit 311 is specifically configured to determine whether the L 3 data includes L 4 data whose value is greater than the threshold value, where the L 4 values are greater than the threshold value.
- Numerical data corresponding to each subcarrier data L 4 is greater than the threshold value, each data value corresponding to the L sub-carriers for the four data of each data L corresponding to four data
- the value of the vector magnitude of the subcarrier, L 4 is less than or equal to L 3 .
- the second determining unit 311 is specifically configured to determine whether the average value of the data corresponding to the L 3 L 3 subcarriers is greater than the preset threshold, the L 3 in any one of subcarriers
- the value of the subcarrier is the value of the vector magnitude of the arbitrary one of the subcarriers.
- the second obtaining unit 307 may obtain a message according to the i-th group data and the j-th group data, where the packet does not carry the i-th group data and the j-th group data.
- the method for the second obtaining unit 307 to obtain the message refer to the method for the processor 301 to obtain the message according to the i-th group data and the j-th group data shown in FIG. 3(a).
- the second obtaining unit 307 can also obtain the message by using any one of the following three manners.
- the second obtaining unit 307 is configured to generate, according to the ith group of data, first compression indication information, where the first compression indication information is used to indicate group data of the N group of data carrying a payload. And the group data that does not carry the payload, the first compression indication information includes a group identifier of each group of the N groups of data and indication information corresponding to a group identifier of each group of the N groups of data, where The indication information corresponding to the group identifier of each group of data in the N group data is used to indicate whether the payload is carried, and the indication information corresponding to the group identifier of the i-th group data is used to indicate that the ith group data does not carry the payload.
- the second obtaining unit 307 is specifically configured to generate, according to the jth group of data, second compression indication information, where the second compression indication information is used to indicate group data carrying the payload in the M group data, and Carrying the group data of the payload, the second compression indication information includes group identifiers of each group of data in the M group data and indication information corresponding to group identifiers of each group of data in the M group data, the group M The indication information corresponding to the group identifier of each group of data is used to indicate whether the payload is carried, and the indication information corresponding to the group identifier of the j-th group data is used to indicate that the j-th group data does not carry a payload;
- the second obtaining unit 307 is specifically configured to carry a payload in the k 1 group data carrying the payload and the M group data in the N sets of data according to the first compression indication information and the second compression indication information
- the k 2 group data is encapsulated to generate the message, where the message includes the first payload,
- the first payload carries the first compression indication information and the k 1 group data
- the second payload carries the second compression indication information and the k 2 group data
- the indication information includes the first a compression indication information and the second compression indication information
- the k 1 being an integer greater than or equal to
- the k 2 being an integer greater than or equal to 0.
- the first compression indication information is an N-bit bitmap, and a position of an ith bit of the N-bit bitmap in the N-bit bitmap is a group identifier of the i-th group of data.
- the value of the ith bit is indication information corresponding to the group identifier of the ith group of data;
- the second compression indication information is a bitmap of M bits, and the jth bit of the bitmap of the M bit is in the The position in the bitmap of the M bits is the group identifier of the jth group of data, and the value of the jth bit is the indication information corresponding to the group identifier of the jth group of data.
- the second obtaining unit 307 is configured to generate, according to the ith group of data, third compression indication information, where the third compression indication information is used to indicate a group identifier that carries a payload in the N sets of data.
- the third compression indication information identifying the group comprising k 1 sets of data in each data set, the data set is a set of k 1 N sets of data of the data carried in the payload of the k 1 is an equal or greater than An integer of 0;
- the second obtaining unit 307 is specifically configured to generate, according to the jth group of data, fourth compression indication information, where the fourth compression indication information is used to indicate a group that carries the payload in the M group data.
- the fourth compression indication information comprises a group identifier k 2 data sets each data set, the data set of k 2 M groups of said set of data carried in the data payload, the k 2 is greater than or An integer equal to 0.
- the second obtaining unit 307 is specifically configured to encapsulate the k 1 group data and the k 2 group data according to the third compression indication information and the fourth compression indication information, and generate The message, the payload of the message
- the second obtaining unit 307 is configured to obtain the packet according to the ith group of data, where the processor 301 generates, according to the ith group of data, fifth compression indication information, where the fifth compression indication information is used. And indicating a group identifier that does not carry a payload in the N sets of data, where the fifth compression indication information includes a group identifier of the i-th group of data; and the second obtaining unit 307 is specifically configured to generate, according to the j-th group data, a sixth compression indication information, where the sixth compression indication information is used to indicate a group identifier that does not carry a payload in the M group data, and the sixth compression indication information includes a group identifier of the jth group data;
- the obtaining unit 307 is specifically configured to encapsulate the k 1 group data and the k 2 group data according to the fifth compression indication information and the sixth compression indication information, to generate the packet, where the packet is sent.
- the payload carries the fifth compression indication information, the sixth compression indication
- the wireless data compression device shown in FIG. 3(b) may further include a fourth obtaining unit (not shown in FIG. 3(b)).
- the fourth obtaining unit may be implemented by the processor 301 in FIG. 3(a) according to executable instructions stored in the memory 302.
- the fourth obtaining unit is configured to obtain an identifier of a logical pipe corresponding to the first frequency domain data, where the identifier of the logical pipe is used to identify logic between the wireless data decompression device and the wireless data compression device pipeline.
- the fourth obtaining unit may obtain the identifier of the logical pipe according to the physical port that receives the CPRI frame carrying the first time domain data.
- the second obtaining unit 307 is specifically configured to add an identifier of the logical pipe to a packet header of the packet.
- the specific content of the identifier of the logical pipe is the same as the specific content of the identifier of the logical pipe in FIG. 3( a ), and details are not described herein again.
- FIG. 3(c) is a schematic diagram of a wireless data compression apparatus according to Embodiment 1 of the present invention.
- the wireless data compression device shown in FIG. 3(c) may be any one of the wireless data compression devices in the network shown in FIG. 2.
- the wireless data compression apparatus shown in FIG. 3(c) includes a processor 312, a memory 313, a communication interface 314, a communication bus 315, and a decider 316.
- Processor 312, memory 313, communication interface 314, and decider 316 communicate over communication bus 315.
- Processor 312 can be a CPU, NP or other integrated circuit.
- the memory 313 can be used to store programs.
- the memory 313 is further configured to store indication information, such as: first compression indication information and/or second compression indication information, etc.
- One or more of the compression indication information mentioned in the example is not illustrated here one by one.
- the wireless data compression apparatus shown in FIG. 3(c) is different from the wireless data compression apparatus shown in FIG. 3(a) in that it is implemented in the wireless data compression apparatus shown in FIG. 3(c) to determine whether or not the N sets of data are determined.
- the device carrying the payload's group data is a decider 316 that transmits the decision result to the processor 312 over the communication bus 315.
- the result of the decision is used to indicate group data carrying the payload in the N sets of data and/or group data not carrying the payload in the N sets of data.
- the processor 312 can obtain a message according to the obtained first frequency domain data and the decision result.
- the message includes indication information, where the indication information is used to indicate that the i-th group of data in the N sets of data does not carry a payload.
- the manner in which the processor 312 obtains the first frequency domain data and the message is the same as that of the processor 301 in FIG. 3(a), and details are not described herein again.
- the determiner 316 outputs the group data carrying the payload in the N sets of data to the processor 312 simultaneously or after outputting the decision result to the processor 312 after obtaining the decision result. For example, k 1 set of data in the N sets of data.
- the memory 313, the communication bus 315, and the communication interface 314 can be referred to the corresponding contents in FIG. 3(a), and details are not described herein again.
- FIG. 4(a) is a schematic diagram of a wireless data decompressing apparatus according to Embodiment 1 of the present invention.
- the wireless data decompressing apparatus shown in Fig. 4(a) may be any one of the wireless data decompressing apparatuses in the network shown in Fig. 2.
- the wireless data decompressing apparatus shown in FIG. 4(a) includes a processor 401, a memory 402, a communication interface 403, and a communication bus 404.
- Processor 401, memory 402, and communication interface 403 communicate over communication bus 404.
- Processor 401 can be a CPU, NP, or other integrated circuit.
- Memory 402 can be used to store programs.
- the processor 401 performs the following operations in accordance with executable instructions included in the program read from the memory 402.
- the processor 401 is configured to receive, by using the communication interface 403, a packet sent by the wireless data compression device, where the packet is a packet generated according to the first frequency domain data, where the first frequency domain data includes N sets of data, where N is An integer greater than or equal to 1, the packet does not carry the i-th group of data, the i-th group of data does not carry a payload, and the i-th group of data is a group of the N sets of data, the report Briefcase
- the indication information is used to indicate that the i-th group of data does not carry a payload.
- the wireless data compression device may be the wireless data compression device shown in FIG. 3(a) or 3(b).
- the processor 401 decompresses the packet according to the indication information included in the packet, and obtains decompressed first frequency domain data, where the decompressed first frequency domain data includes the first Group i data.
- the processor 401 can obtain the decompressed first frequency domain data by using any one of the following three manners.
- the packet comprises a first set of compressed data k 1 and said N sets indication information carried in the data payload, the first compression indication information to the indication, the first indication information compression And indicating the group data carrying the payload and the group data not carrying the payload, where the first compression indication information includes a group identifier of each group of the N groups of data and the group identifier
- the indication information, the indication information corresponding to the group identifier is used to indicate whether the group corresponding to the group identifier carries a payload, and the indication information corresponding to the group identifier of the i-th group data is used to indicate that the i-th group data is not Carrying a payload, the k 1 being an integer greater than or equal to zero.
- the processor 401 obtains the k 1 group data from the payload of the packet according to the first compression indication information included in the packet, and the processor 401 includes the first information according to the first compression indication information.
- the indication information corresponding to the group identifier of the i group data is used to restore the i-th group data; the processor 401, according to the group identifier of the i-th group data and the group identifier of each group of the k 1 group data,
- the N sets of data are reorganized to obtain the decompressed first frequency domain data.
- the first compression indication information is a bitmap of N bits, and the position of the i-th bit of the N-bit bitmap in the bitmap of the N-bit is a group identifier of the i-th group of data, The value of the i-th bit is the indication information corresponding to the group identifier of the i-th group of data.
- the message carrying indication information comprises a second compression set of data and the N k 1 sets of data payload, the second compression indication information to the indication information, the second indication information compression And indicating, in the N group of data, a group identifier that carries a payload, where the second compression indication information includes a group identifier of each group of data in the k 1 group of data, where k 1 is an integer greater than or equal to 0.
- the processor 401 obtains the k 1 group data from the payload of the packet according to the second compression indication information included in the packet; the processor 401 is configured according to the value of N and the k 1 group of data.
- the payload of the packet carries the third compression indication information and the k 1 group data of the payload in the N group of data, where the third compression indication information is used to indicate that the N group of data is not carried.
- a group identifier of the payload the third compression indication information includes a group identifier of the i-th group of data, and the k 1 is an integer greater than or equal to 0.
- the processor 401 restores the i-th group data according to the group identifier of the i-th group data included in the third compression indication information; the processor 401 is configured according to the group identifier of the i-th group data and the k 1 group a group identifier of each group of data in the data, recombining the group N data to obtain the decompressed first frequency domain data.
- the packet received by the wireless data decompressing device carries the first compression indication information, where the packet includes the group data carrying the payload in the N sets of data, and the N
- the group data includes the group data that does not carry the payload
- the processor 401 can obtain the decompressed first according to the first indication information carried in the received packet and the group data carrying the payload in the first frequency domain data.
- a frequency domain data helps to reduce bandwidth requirements and network construction costs.
- the wireless data decompressing device receives the first compressed indication information, and the packet does not include any one of the N sets of data, that is, the group data carrying the payload does not exist in the N sets of data.
- the processor 401 is configured to obtain the decompressed first frequency domain data according to the first indication information carried in the received packet, which helps reduce bandwidth requirements and network construction costs.
- the packet received by the wireless data decompression device carries the second compression indication information or the third compression indication information, and can obtain the same effect that the packet received by the wireless data decompression device carries the first compression indication information, and is no longer Narration.
- the processor 401 further performs IDFT on the decompressed first frequency domain data to obtain first time domain data, and the processor 401 further sends the first time domain data through the communication interface 403.
- the processor 401 may further obtain a CPRI frame according to the first time domain data, where the CPRI frame is obtained by performing CPRI encapsulation on the first time domain data.
- the processor 401 also transmits the CPRI frame through the communication interface 403.
- Figure 4(a) The illustrated wireless data decompression device is the wireless data decompression device 214 in the network shown in FIG. 2, and the processor 401 also transmits the CPRI frame to the first device 20 via the communication interface 403.
- the wireless data decompressing apparatus shown in FIG. 4(a) is the wireless data decompressing apparatus 222 in the network shown in FIG. 2, the processor 401 also transmits the CPRI frame to the second device 23 via the communication interface 403. .
- the message further includes second frequency domain data, the second frequency domain data includes M group data, and the packet does not carry the jth group data, where the message
- the j group data does not carry a payload
- the jth group data is a group data in the M group data
- M is an integer greater than or equal to 1
- the indication information is further used to indicate that the jth group data is not Carry the payload.
- the processor 401 may decompress the packet according to the indication information included in the packet, on the basis of decompressing the packet to obtain the decompressed first frequency domain data. And obtaining decompressed second frequency domain data, where the decompressed second frequency domain data includes the jth group of data.
- the processor 401 obtains the decompressed second frequency domain data from the message, and may adopt any one of the following three manners.
- the packet includes a first payload, a second payload, and a quantity of frequency domain data, where the number of the frequency domain data is a quantity of the load included in the packet, and the first payload includes the first compression indication information.
- the N group of data carrying the k 1 group data of the payload where the first compression indication information is used to indicate the group data carrying the payload in the N group data and the group data not carrying the payload
- the a compression indication information includes group identification of each set of data in the N sets of data and indication information corresponding to a group identifier of each set of data in the N sets of data, group identifier of each set of data in the N sets of data
- Corresponding indication information is used to indicate whether the payload is carried, the indication information corresponding to the group identifier of the i-th group data is used to indicate that the i-th group data does not carry a payload, and the second payload includes a second compression indication information.
- the second set of data compression indication information for indicating the M groups of data carried in the payload of the data set and does not carry the payload
- the second The compression indication information includes indication information corresponding to a group identifier of each group of data in the M group data and a group identifier of each group of data in the M group data, and an indication corresponding to a group identifier of each group of data in the M group data
- the information is used to indicate whether the payload is carried, and the indication information corresponding to the group identifier of the j-th group data is used to indicate that the j-th group data does not carry a payload, and the second frequency domain data includes the M-group data.
- the processor 401 obtains the decompressed second frequency domain data, and the processor 401 obtains the k 2 group data from the second payload of the packet according to the second compression indication information included in the packet. ; processor 401 according to the indication information of the group ID corresponding to the j-th group of data, reduction of the j sets of data; a processor group identifier 401 according to each of the j-th group of data and the set of data k 2 The group identifier of the group data is reorganized to obtain the decompressed second frequency domain data.
- the first compression indication information is an N-bit bitmap, and the position of the ith bit of the N-bit bitmap in the N-bit bitmap is the ith group a group identifier of the data, the value of the i-th bit is indication information corresponding to the group identifier of the i-th group data;
- the second compression indication information is a bitmap of M bits, and the bitmap of the M-bit bitmap The position of the j bit in the bitmap of the M bit is the group identifier of the jth group of data, and the value of the jth bit is the indication information corresponding to the group identifier of the jth group of data.
- the method for the processor 401 to obtain the decompressed first frequency domain data is the same as the method for the processor 401 to obtain the decompressed first frequency domain data in FIG. 4(a), and details are not described herein again.
- the packet header of the packet includes the first payload, the second payload, and the quantity of the frequency domain data, where the number of the frequency domain data is the number of payloads included in the packet.
- the first payload includes third compression indication information and k 1 group data carrying payloads in the N sets of data.
- the third compression indication information is used to indicate a group identifier that carries a payload in the N sets of data.
- the third compression indication information includes a group identifier of each group of data in the k 1 group of data.
- the second payload includes fourth compression indication information and k 2 sets of data carrying payloads in the M sets of data.
- the fourth compression indication information is used to indicate a group identifier that carries a payload in the M group data.
- the fourth compression indication information includes a group identifier of each group of data in the k 2 group data.
- the k 1 and the k 2 are each an integer greater than or equal to zero.
- the indication information includes the third compression indication information and the fourth compression indication information.
- the processor 401 obtains the decompressed second frequency domain data, and the processor 401 obtains the k 2 group data from the second payload of the packet according to the fourth compression indication information included in the packet.
- the processor 401 restores the jth group of data according to the group identifier of each of the k 2 sets of data and the value of M; the processor 401 determines the group identifier according to the jth group of data and the k 2 a group identifier of each group of data in the group data, and recombining the M group data to obtain the decompressed second frequency domain data.
- the method for the processor 401 to obtain the decompressed first frequency domain data is the same as the method for the processor 401 to obtain the decompressed first frequency domain data in FIG. 4(a), and details are not described herein again.
- the packet header of the packet includes a first payload, a second payload, and a quantity of frequency domain data, where the number of the frequency domain data is a number of payloads included in the packet.
- the first payload includes fifth compression indication information and k 1 group data carrying payloads in the N sets of data.
- the fifth compression indication information is used to indicate a group identifier of the N group of data that does not carry a payload, and the fifth compression indication information includes a group identifier of the i-th group data.
- the second payload includes sixth compression indication information and k 2 sets of data carrying payloads in the M sets of data.
- the sixth compression indication information is used to indicate a group identifier that does not carry a payload in the M group data, and the sixth compression indication information includes a group identifier of the j-th group data.
- the k 1 and the k 2 are each an integer greater than or equal to zero.
- the indication information includes the fifth compression indication information and the sixth compression indication information.
- the obtaining, by the processor 401, the decompressed second frequency domain data includes: the processor 401, according to the group identifier of the jth group of data in the sixth compression indication information included in the packet, from the packet Obtaining the k 2 group data in the second payload; the processor 401 restoring the j th group data according to the group identifier of the j th group data and the value of M; and the processor 401 is configured according to the j th group data And identifying a group identifier of each group of data in the k 2 group of data, and recombining the M group data to obtain the decompressed second frequency domain data.
- the method for the processor 401 to obtain the decompressed first frequency domain data is the same as the method for the processor 401 to obtain the decompressed first frequency domain data in FIG. 4(a), and details are not described herein again.
- FIG. 4(b) is a schematic diagram of a wireless data decompressing apparatus according to Embodiment 1 of the present invention.
- the wireless data decompressing apparatus shown in FIG. 4(b) includes a receiving unit 405 and a decompressing unit 406.
- the wireless data decompressing apparatus shown in FIG. 4(b) further includes: an obtaining unit 407 and a sending unit 408.
- the wireless data decompressing apparatus shown in FIG. 4(b) and the wireless data decompression shown in FIG. 4(a) The device may be the same device, such as wireless data decompressing device 214 or wireless data decompressing device 222 in the network shown in FIG. It can be considered that Fig. 4(a) shows the content included in a wireless data decompressing device from a physical point of view, and Fig. 4(b) shows the content included in a wireless data decompressing device from a logical point of view.
- the receiving function of the receiving unit 405 in FIG. 4(b) can be performed cooperatively by the processor 401 and the communication interface 403 in FIG. 4(a), and the communication interface 403 can include at least one physical interface.
- the decompression unit 406 of FIG. 4(b) may be implemented by the processor 401 of FIG. 4(a) in accordance with executable instructions stored by the memory 402, which may include at least one physical processor.
- the obtaining unit 407 in FIG. 4(b) may be implemented by the processor 401 in FIG. 4(a) according to executable instructions stored in the memory 402.
- the transmitting function of the transmitting unit 408 in FIG. 4(b) can be performed cooperatively by the processor 401 and the communication interface 403 in FIG. 4(a). The contents repeated in FIG. 4(b) and FIG. 4(a) are not described in detail in the embodiment corresponding to FIG. 4(b).
- the receiving unit 405 is configured to receive a packet sent by the wireless data compression device, where the packet is a packet generated according to the first frequency domain data, where the first frequency domain data includes N sets of data, and N is greater than or equal to An integer of 1, the packet does not carry the i-th group of data, the i-th group of data does not carry a payload, and the i-th group of data is one of the N sets of data, the packet includes an indication Information indicating that the i-th group of data does not carry a payload.
- the decompressing unit 406 is configured to decompress the packet according to the indication information included in the packet, to obtain decompressed first frequency domain data, and the decompressed first frequency domain
- the data includes the ith set of data.
- the packet includes the first compression indication information and the k 1 group data carrying the payload in the N sets of data, where the first compression indication information is the indication information, and the first compression indication information
- the indication information corresponding to the group identifier of the i group data is used to indicate that the i th group data does not carry a payload
- the k 1 is an integer greater than or equal to 0.
- the decompression unit 406 is specifically configured to obtain, according to the first compression indication information that is included in the packet, the k 1 group of data from the payload of the packet; the decompression unit 406 is specifically configured to use And the indication information corresponding to the group identifier of the ith group of data included in the first compression indication information is used to restore the ith group of data; the decompression unit 406 is specifically configured to use the group identifier of the ith group of data. And group identification of each set of data in the k 1 set of data, recombining the N sets of data to obtain decompressed first frequency domain data.
- the first compression indication information is an N-bit bitmap
- a position of an ith bit of the N-bit bitmap in the N-bit bitmap is a group identifier of the i-th group of data.
- the value of the i-th bit is indication information corresponding to the group identifier of the i-th group of data.
- the packet includes the second compression indication information and the k 1 group data carrying the payload in the N sets of data, where the second compression indication information is the indication information, and the second compression indication information is used. And indicating, in the N group of data, a group identifier that carries a payload, where the second compression indication information includes a group identifier of each group of data in the k 1 group of data, where k 1 is an integer greater than or equal to 0.
- the decompression unit 406 is specifically configured to acquire the k 1 group of data from the payload of the packet according to the second compression indication information included in the packet; the decompression unit 406 is specifically configured to use a value of N and a group identifier of each set of data in the k 1 set of data, the i-th set of data is restored; the decompressing unit 406 is specifically configured to use the group identifier of the i-th group of data and the k group 1 group identification data in each data set, the N sets of data reorganization to obtain a first frequency domain data decompressed.
- the message includes the third compression indication information and the k 1 group data carrying the payload in the N sets of data, where the third compression indication information is the indication information, and the third compression indication information is used. And indicating, in the N group of data, a group identifier that does not carry a payload, where the third compression indication information includes a group identifier of the i-th group of data, where k 1 is an integer greater than or equal to 0.
- the decompression unit 406 is specifically configured to restore the i-th group data according to the group identifier of the i-th group data included in the third compression indication information; the decompression unit 406 is specifically configured to be used according to the The group identifier of the i group data and the group identifier of each group of the data in the k 1 group of data are reorganized to obtain the decompressed first frequency domain data.
- the decompressed first frequency domain data in the embodiment of the present invention may be the same data as the first frequency domain data, or may be data different from the first frequency domain data.
- the decompressed second frequency domain data in the embodiment of the present invention may be the same data as the second frequency domain data, and may also be the second frequency domain. Data with different data.
- the packet received by the wireless data decompressing device carries the first compression indication information, where the packet includes the group data carrying the payload in the N sets of data, and the N
- the group data includes the group data that does not carry the payload
- the decompression unit 406 can obtain the decompressed information according to the first indication information carried in the received packet and the group data carrying the payload in the first frequency domain data.
- the first frequency domain data helps to reduce bandwidth requirements and network construction costs.
- the wireless data decompressing device receives the first compressed indication information, and the packet does not include any one of the N sets of data, that is, the group data carrying the payload does not exist in the N sets of data.
- the decompression unit 406 can obtain the decompressed first frequency domain data according to the first indication information carried in the received packet, which helps to reduce bandwidth requirements and network construction costs.
- the packet received by the wireless data decompression device carries the second compression indication information or the third compression indication information, and can obtain the same effect that the packet received by the wireless data decompression device carries the first compression indication information, and is no longer Narration.
- the wireless data decompressing apparatus shown in FIG. 4(b) further includes: an obtaining unit 407 and a sending unit 408.
- the obtaining unit 407 is configured to perform IDFT on the first frequency domain data to obtain first time domain data.
- the sending unit 408 can be configured to send the first time domain data to the first device 20 or the second device 23.
- the obtaining unit 407 is further configured to obtain a CPRI frame according to the first time domain data, where the CPRI frame is a frame obtained by performing CPRI encapsulation on the first time domain data.
- the sending unit 408 is further configured to send the CPRI frame to the first device 20 or the second device 23.
- the message carries multiple frequency domain data, such as the first frequency domain data and the second frequency domain data, and the wireless data decompressing device shown in FIG. 4(b)
- the packet may be decompressed to obtain decompressed first frequency domain data and decompressed second frequency domain data.
- the manner in which the decompressed first frequency domain data is obtained by the wireless data decompressing apparatus shown in FIG. 4(b) is the same as that in the foregoing embodiment, and details are not described herein again.
- the packet further includes second frequency domain data, where the second frequency domain data includes M group data, the packet does not carry the jth group data, and the jth group data does not carry a payload.
- the jth group data is one group data in the M group data, and M is an integer greater than or equal to 1, the finger
- the information is further used to indicate that the jth group data does not carry a payload
- the decompression unit 406 is further configured to: decompress the packet according to the indication information included in the packet, and obtain a solution.
- the packet includes a first payload, a second payload, and a quantity of frequency domain data, where the number of the frequency domain data is the number of payloads included in the packet, and the first payload includes the first compression indication information.
- the N group of data carrying the k 1 group data of the payload where the first compression indication information is used to indicate the group data carrying the payload in the N group data and the group data not carrying the payload
- the a compression indication information includes group identification of each set of data in the N sets of data and indication information corresponding to a group identifier of each set of data in the N sets of data, group identifier of each set of data in the N sets of data
- Corresponding indication information is used to indicate whether the payload is carried, the indication information corresponding to the group identifier of the i-th group data is used to indicate that the i-th group data does not carry a payload, and the second payload includes a second compression indication information.
- the second set of data compression indication information for indicating the M groups of data carried in the payload of the data set and does not carry the payload
- the The second compression indication information includes indication information corresponding to the group identifier of each group of data in the M group data and the group identifier of each group of data in the M group data, and the group identifier of each group of data in the M group data corresponds to
- the indication information is used to indicate whether the payload is carried
- the indication information corresponding to the group identifier of the j-th group data is used to indicate that the j-th group data does not carry a payload
- the second frequency domain data includes the M-group data.
- the indication information includes the second compression indication information and the first compression indication information
- the k 1 and the k 2 are integers greater than or equal to 0.
- the indication information includes the first compression indication information and the second compression indication information.
- the decompression unit 406 is specifically configured to acquire the k 2 group data from the second payload of the packet according to the second compression indication information included in the packet; according to the instruction information corresponding to the group identifier of the j-th set of data, reduction of the j sets of data; the decompression unit 406 specifically for two sets of data according to the group identifier of the j-th group of data and the k
- the group identifier of each group of data in the group is reorganized to obtain the decompressed second frequency domain data.
- the first compression indication information is an N-bit bitmap, and the N-bit bitmap The position of the i-th bit in the bitmap of the N-bit is a group identifier of the i-th group of data, and the value of the i-th bit is indication information corresponding to the group identifier of the i-th group of data;
- the second compression indication information is a bitmap of M bits, and the position of the jth bit of the M bit bitmap in the bitmap of the M bits is a group identifier of the jth group of data, the jth bit The value is the indication information corresponding to the group identifier of the j-th group data.
- the wireless data decompressing apparatus shown in FIG. 4(b) can obtain the second decompressed by the method in FIG. 4(a). Frequency domain data will not be described here.
- the wireless data decompressing apparatus shown in FIG. 4(b) can obtain the second decompressed by the method in FIG. 4(a). Frequency domain data will not be described here.
- FIG. 5 is a flowchart of a method for transmitting wireless data according to Embodiment 1 of the present invention.
- the wireless data transmission method provided in the first embodiment will be described in detail below with reference to the network structure shown in FIG.
- the wireless data transmission method provided in the first embodiment is described by taking one antenna carrier data as an example.
- the wireless data transmission method provided in the first embodiment can also process and transmit at least two antenna carrier data, that is, process and transmit the first time domain data and the second time domain data, and the first time domain data corresponds to one antenna carrier. Data, the second time domain data corresponds to another antenna carrier data.
- the method of processing and transmitting at least two antenna carrier data is not illustrated here.
- the first device 20 sends a CPRI frame to the aggregation side compression device 21, where the CPRI frame carries the first time domain data.
- the carrier data of the antenna includes 1200 subcarriers, and the frequency of each subcarrier is 15000 hz, that is, the period is 66.7 microseconds.
- the first time domain data may be carried in the CPRI frame sent by the first device 20 to the aggregation side compression device 21, where the time domain data corresponds to the channel antenna carrier data.
- the first time domain data may be time domain in-phase and quadrature components (in English as in-phase and quadrature components, referred to as IQ) data.
- the first CPRI 210 sends the first time domain data to the first DFT module 211.
- the first CPRI 210 removes the encapsulation of the CPRI frame to obtain the first time domain data.
- the first CPRI 210 transmits the first time domain data to the first DFT module 211.
- the first DFT module 211 performs DFT on the first time domain data to obtain first frequency domain data.
- the first DFT module 211 performs DFT on the received first time domain data to obtain the first frequency domain data including N sets of data.
- the first DFT module 211 may perform DFT on the first time domain data according to formula (1), and obtain frequency domain data X(a) corresponding to x(b), where X(a) is the first frequency domain. Any one of the frequency domain data included in the data.
- the first frequency domain data includes N sets of data, and N is an integer greater than or equal to 1. The specific process of the DFT will not be described here.
- the value of a is an integer greater than or equal to 0 and less than or equal to (L-1).
- the value of b is an integer greater than or equal to 0 and less than or equal to (L-1).
- the value of L is the number of sampling points. Taking an antenna carrier data of a carrier frequency of 20 Mhz as an example, the value of L is 2048, the value of N is 100, and each group of data of N sets of data includes 12 frequency domain data.
- the first DFT module 211 sends the first frequency domain data to the wireless data compression device 212.
- the wireless data compression device 212 obtains a packet according to the first frequency domain data.
- the method for obtaining the packet by the wireless data compression device 212 according to the first frequency domain data may be referred to the method provided in the embodiment corresponding to FIG. 6, and details are not described herein again.
- the wireless data compression device 212 sends the message to the access side compression device 22 through the packet network.
- the wireless data compression device 212 can send the message through the first interface 213, and the message is sent to the access side compression device 22 through the forwarding device in the packet network.
- the wireless data compression device 212 can also send the message to the access side compression device 22 through other networks or links, which are not illustrated one by one.
- the wireless data decompressing apparatus 222 decompresses the packet from the second interface 223 to obtain decompressed first frequency domain data.
- the wireless data decompressing apparatus 222 sends the decompressed first frequency domain data to the first IDFT module 221.
- the first IDFT module 221 performs IDFT on the decompressed first frequency domain data to obtain the first time domain data.
- the first IDFT module 221 performs IDFT on the received decompressed first frequency domain data to obtain the first time domain data.
- the first IDFT module 221 may perform IDFT on the first frequency domain data according to formula (2) to obtain time domain data x(b) corresponding to X(a). The specific process of IDFT will not be described here.
- the value of a is an integer greater than or equal to 0 and less than or equal to (L-1).
- the value of b is an integer greater than or equal to 0 and less than or equal to (L-1).
- the value of L is the number of sampling points. Taking an antenna carrier data of a carrier frequency of 20 Mhz as an example, the value of L is 2048.
- the first IDFT module 221 sends the first time domain data to the second CPRI 220.
- the second CPRI 220 sends the CPRI frame to the second device 23, where the CPRI frame carries the first time domain data.
- the second CPRI 220 performs CPRI encapsulation on the first time domain data to obtain the CPRI frame.
- the second CPRI 220 transmits the CPRI frame to the second device 23.
- the wireless data compression device may encapsulate the group data carrying the payload in the first frequency domain data to obtain a packet.
- the wireless data compression device transmits the message to a wireless data decompression device.
- the wireless data decompressing device may decompress the packet, that is, restore the group data that does not carry the payload, and obtain the first frequency domain data.
- the wireless data compression device and the wireless data decompression device transmit a packet, the packet includes group data carrying a payload, and the packet does not include group data that does not carry a payload, and the packet is implemented.
- the transmission of a frequency domain data helps to reduce bandwidth requirements and network construction costs.
- FIG. 6 is a flowchart of a method for transmitting wireless data according to Embodiment 1 of the present invention.
- FIG. 6 is a diagram of a wireless data transmission method according to Embodiment 1 of the present invention from the perspective of a wireless data compression apparatus.
- the wireless data compression device may be the wireless data compression device 212 or the wireless data compression device 224 of FIG.
- the wireless data compression device may also be a wireless data compression device as shown in FIG. 3(a), FIG. 3(b) or FIG. 3(c).
- the wireless data transmission method provided in the first embodiment of the present invention is described in detail below.
- the wireless data compression apparatus obtains first frequency domain data, where the first frequency domain data includes N sets of data, and N is an integer greater than or equal to 1.
- the first frequency domain data is frequency domain data obtained by performing DFT transform on the first time domain data.
- the first time domain data is first antenna carrier data obtained from the first device 20 or the second device 23, or the first frequency domain data is from an evolved packet core network (English full name is an evolved packet core,
- the frequency domain data obtained after the baseband processing is performed on the wireless data referred to as EPC.
- the wireless data compression device determines, according to the threshold value and the i-th group data in the N sets of data, whether the i-th group data carries a payload, where the i-th group data is in the N-group data. Any set of data.
- each of the N sets of data includes L 1 data, each of the L 1 data corresponds to one subcarrier, and L 1 is an integer greater than or equal to 1.
- the wireless data compression apparatus according to the threshold value and the N groups of data, determining whether the data set N i-th group of data carries a payload comprising: the wireless device determines whether data compression data to L 1 comprises L 2 data whose value is greater than the threshold value, where the L 2 values are greater than the threshold value, and the value of the subcarrier corresponding to each data of the L 2 data is greater than the threshold value.
- Numerical data corresponding to each of said sub-carriers for data L 2 vector magnitude value of the two data corresponding to each data sub-carriers of the L, L 2 is less than or equal to L 1.
- the wireless data compression apparatus according to the threshold value and the N groups of data, determining whether the data set N i-th group of data carries a payload comprising: means for determining the data to L 1 wireless data compression Whether the average value of the corresponding L 1 subcarriers is greater than the threshold value, and the value of any one of the L 1 subcarriers is a value of the vector magnitude of the any one of the subcarriers.
- the threshold value in 602 may be set to zero. If the threshold value is 0, the value of L 1 is 12, and the i-th group data in the N sets of data is taken as an example, and the i-th group data includes 12 pieces of data, as shown in formula (3).
- R i [R i1 ,R i2 ,...,R i12 ] (3)
- Any one of the 12 data included in the i-th group of data R ic may be expressed in the form of a formula (4) in a plural form.
- I ic represents the in-phase component of R ic (English name is in-phase data)
- Q ic represents the orthogonal component of R ic (English name is quadrature data).
- Both I ic and Q ic are real numbers.
- the value of c is an integer greater than or equal to 1, and less than or equal to 12.
- the value of the data R ic is the vector magnitude of R ic .
- the vector magnitude of R ic can be expressed as MR ic .
- the formula for calculating MR ic can be expressed as equation (5).
- the data compression of the data set i The value of each data is compared to the threshold. Taking L 2 as 1 and the threshold value being 0 as an example, if the value of MR ic including at least one of the 12 data in the i-th data is greater than 0, the i-th data carries The payload. If the value of the MR ic of the 12 data in the i-th data is 0, the i-th data does not carry the payload.
- the i-th group data carries The payload.
- MR ic value if the value of the i-th set of data includes only data of an MR ic is greater than 0 or only two data is greater than 0, then the i-th group of data carries no payload.
- L 2 is an example of other numerical values and will not be enumerated one by one.
- said wireless data compressing the average value calculation device and the door threshold obtained Values are compared. Taking the threshold value as 0 as an example, if the MR ic of each of the 12 data in the i-th data is 0, the average value obtained by the wireless data compression device is 0, and then the The wireless data compression device determines that the ith set of data does not carry a payload. If the MR ic of the at least one of the 12 data in the i-th data is greater than 0, the average value obtained by the wireless data compression device is greater than 0, and the wireless data compression device determines the ith group The data carries the payload.
- the wireless data compression apparatus determines, according to the above method, that the i-th group of data does not carry a payload.
- the threshold value in the embodiment of the present invention may also be dynamically acquired.
- the wireless data compression device obtains the D before the period of the ith group of data before determining the relationship between the ith group data and the threshold value in the N sets of data. Group data corresponding to each cycle.
- the threshold value may be determined according to group data corresponding to D periods before the period of the ith group data.
- Each of the N sets of data in the embodiment of the present invention corresponds to one cycle.
- the threshold value may be a threshold value for each data, taking the f-th data in the m-th group data as an example, and corresponding to the f-th data in the m-th group data in the period t
- the threshold value can be expressed as V mf (t).
- m represents the mth group of data
- f represents the fth data in the mth group of data
- t represents a period corresponding to the mth group of data.
- V mf (t) can be calculated using equation (6).
- MR mf is a vector magnitude of a subcarrier corresponding to the fth data of the mth group of data.
- the value of V mf (t) is the average value of the vector magnitudes of the sub-carriers corresponding to the f-th data in the m-th data corresponding to the coefficient ⁇ and the D periods T before the period t.
- the value of D is an integer greater than or equal to 1.
- the N sets of data mentioned in the embodiment of the present invention may be frequency domain data of the same period.
- the threshold may also be a threshold for each set of data. Taking the m-th group data as an example, in the period t, the threshold corresponding to the m-th group data may be expressed as Vm(t). Vm(t) available formula (7) Perform calculations.
- Vm(t) is an average value of threshold values corresponding to 12 data included in the m-th group data calculated according to the formula (6).
- the threshold may also be a threshold for setting the N sets of data. Taking the N sets of data as an example, in the period t, the threshold corresponding to the N sets of data may be expressed as Vth(t). Vth(t) can be calculated using equation (8).
- Vth(t) Min(Vm(t)) (8)
- Vm(t) is an average value of threshold values corresponding to 12 data included in the m-th group data calculated according to the formula (7).
- Vth(t) is the minimum value of the threshold corresponding to all the group data included in the N sets of data.
- the method for dynamically determining the threshold value provided by the embodiment of the present invention may specifically be that the wireless data compression device dynamically obtains the threshold value according to the foregoing method, or is configured by another device capable of communicating with the wireless data compression device.
- the controller dynamically obtains the threshold according to the above method, and other devices capable of dynamically obtaining the threshold send the obtained threshold to the wireless data compression device to enable the wireless The data compression device obtains the threshold.
- the wireless data compression apparatus determines that the i-th group of data does not carry a payload.
- the wireless data compression device may specifically adopt the method in 602, and determine that the i-th group data does not carry a payload, and details are not described herein again.
- the wireless data compression device obtains a packet according to the ith group of data, where the packet is a packet generated according to the first frequency domain data, where the packet does not carry the ith group data.
- the message includes indication information, where the indication information is used to indicate that the i-th group of data does not carry a payload.
- the wireless data compression device obtains the message according to the i-th group data in the following three manners.
- the wireless data compression device obtains a message according to the ith group of data, and the wireless data compression device generates first compression indication information, the first compression indication information according to the ith group data. And the group data that carries the payload and the group data that does not carry the payload, where the first compression indication information includes a group identifier and the group identifier of each group of the N groups of data. Corresponding indication information, the indication information corresponding to the group identifier is used to indicate whether the group corresponding to the group identifier carries a payload, and the indication information corresponding to the group identifier of the i-th group data is used to represent the ith group data.
- the first compression indication information is not included in the payload, and the wireless compression device encapsulates the k 1 group of data carrying the payload in the N sets of data according to the first compression indication information. And generating the packet, where the packet includes the first compression indication information and the k 1 group data, where k 1 is an integer greater than or equal to 0.
- the first compression indication information is a bitmap of N bits, and the position of the i-th bit of the N-bit bitmap in the bitmap of the N-bit is a group identifier of the i-th group of data, The value of the i-th bit is the indication information corresponding to the group identifier of the i-th group of data.
- the N-bit bitmap can be as shown in FIG. 7(a).
- the value 0 in Fig. 7(a) is used to indicate that the payload is not carried, and the value 1 in Fig. 7(a) is used to indicate that the payload is carried.
- the position of each value in Figure 7(a) in the illustrated N-bit bitmap represents the group identification of the set of data. For example, the intersection of the first row and the first column of the N-bit bitmap shown in FIG. 7(a) indicates the first group of data, and the indication information corresponding to the first group of data is the information represented by the value 0. That is, the first group of data does not carry a payload.
- the intersection of the first row and the second column of the N-bit bitmap shown in FIG. 7(a) indicates the second group of data, and the indication information corresponding to the second group of data is the information represented by the numerical value 1, that is, The second set of data carries the payload.
- the value of the position corresponding to the i-th group of data in the N-bit bitmap shown in FIG. 7(a) is 0, that is, the i-th group data does not carry the payload.
- the wireless data compression device obtains a message according to the ith group of data, and the wireless data compression device generates second compression indication information, where the second compression indication information is generated according to the ith group data.
- N for indicating the set of data carried in the payload of the group identifier, said second compression indication information identifying the group comprising k 1 sets of data each set of data, said set of data k 1 to the N sets of data, Carrying the group data of the payload, the k 1 being an integer greater than or equal to 0, the second compression indication information being the indication information; the wireless data compression apparatus according to the second compression indication information,
- the k 1 group of data is encapsulated to generate the message, and the message includes the second compression indication information and the k 1 group of data.
- the second compression indication information may take the form in FIG. 7(b). 5 in FIG. 7(b) is used to indicate that the fifth group of data in the N sets of data carries a payload. Similarly, according to the second compression indication information in FIG. 7(b), the fifth group data, the eighth group data, the 22nd group data, the 80th group data, and the 93rd group data in the N group data are known. Group data to carry the payload.
- the wireless data compression device obtains a message according to the ith group of data, and the wireless data compression device generates third compression indication information, the third compression indication information according to the ith group of data.
- a group identifier for indicating that the payload is not carried in the N sets of data the third compression indication information includes a group identifier of the i-th group of data, and the third compression indication information is the indication information;
- the wireless data compression device encapsulates the k 1 group data carrying the payload in the N sets of data according to the third compression indication information, and generates the packet, where the packet includes the third compression indication information and The k 1 group of data, wherein k 1 is an integer greater than or equal to 0.
- the third compression indication information may also be in the form shown in FIG. 7(b), which is different from the second compression indication information in that the group identifier in the third compression indication information is not carried.
- the identification of the group data of the payload will not be described here with reference to the drawings.
- the packet header of the packet carries the CPRI indication information, where the CPRI indication information is used to indicate that the payload of the packet carries CPRI control information, and the payload of the packet further carries the CPRI control information.
- the CPRI control information is control word information in a CPRI frame.
- the format of the message provided by the embodiment of the present invention may adopt the format shown in FIG. 7(c).
- the indication information in FIG. 7(c) may be the first compression indication information shown in FIG. 7(a), the second compression indication information shown in FIG. 7(b), or the third compression indication information.
- the group data carrying the payload in FIG. 7(c) may be the k 1 group data in the N sets of data, that is, the payload carried by the group data carrying the payload in FIG. 7(c) may be k 1 .
- the payload carried by the group data may be the k 1 .
- the wireless data compression apparatus sends the message to a wireless data decompressing apparatus.
- the wireless data compression device can transmit the message to the wireless data decompressing device over a packet network.
- the packet network may be a network such as Ethernet capable of transmitting data and/or information through messages.
- the message can be an Ethernet message or an Internet protocol (English full name) For the Internet Protocol (IP) packet or MPLS packet, the packet format that may be used is not described here.
- IP Internet Protocol
- the method further includes: the wireless data compression device obtaining an identifier of a logical pipeline corresponding to the first frequency domain data, where the identifier of the logic pipeline is used to identify the wireless data decompression device and the Defining a logical pipeline between the wireless data compression devices; the wireless data compression device obtaining the message according to the i-th group of data further comprises: the wireless data compression device adding an identifier of the logical pipe to the message Message header.
- the identifier of the logical pipe is an identifier of a VLAN to which the wireless data decompressing device belongs, an MPLS label allocated by the wireless data decompressing device, or a VNID of a VXLAN to which the wireless data decompressing device belongs.
- the wireless data compression apparatus determines, according to the threshold value, whether each set of data in the N sets of data carries a payload to determine group data that does not carry a payload, such as the i-th group. data.
- the packet obtained by the wireless data compression device includes the group data carrying the payload and does not include the group data that does not carry the payload, and the wireless data compression device sends the first frequency domain to the wireless data decompressing device in the form of a message. Packets of data help reduce bandwidth requirements and network construction costs.
- the method according to another embodiment of the present invention further includes: the wireless data compression apparatus obtains second frequency domain data, where the second frequency domain data includes M sets of data, and M is greater than or equal to An integer of 1; the wireless data compression device determines, according to the threshold value and the j-th data in the M-group data, whether the j-th group data carries a payload, and the j-th group data is the M-group Any set of data in the data; the wireless data compression device determines that the jth set of data does not carry a payload.
- each of the M sets of data includes L 3 data, each of the L 3 data corresponds to one subcarrier, and L 3 is an integer greater than or equal to 1.
- the wireless data compression apparatus according to the threshold value and the second set of data M j sets of data, determining whether or not the j-th group of data carries a payload comprising: means for determining L 3 of the data compression is the radio data
- the data includes L 4 values greater than the threshold value, where the L 4 values are greater than the threshold value, and the value of the subcarrier corresponding to each data of the L 4 data is greater than the threshold value.
- each data value for each data subcarrier corresponding to the four data L 4 and L is the data vector magnitude values corresponding subcarriers, L 4 is less than or equal to L 3.
- the wireless data compression apparatus according to the threshold value and the second set of data M j sets of data, determining whether or not the j-th group of data carries a payload comprising: determining the wireless data compressing apparatus according to th L 3 Whether the average value of the values of the L 3 subcarriers corresponding to the data is greater than the preset threshold value, and the value of any one of the L 3 subcarriers is a value of the vector magnitude of the any one of the subcarriers.
- the wireless data compression device obtains a message according to the ith group of data, and the wireless data compression device generates, according to the ith group data, first compression indication information, where the first compression indication information is And the group data that carries the payload in the N sets of data and the group data that does not carry the payload, where the first compression indication information includes a group identifier of each group of the N sets of data and the N group
- the indication information corresponding to the group identifier of each group of data in the data, the indication information corresponding to the group identifier of each group of data in the N group data is used to indicate whether to carry a payload, and the group identifier of the i-th group data corresponds to
- the indication information is used to indicate that the ith group of data does not carry a payload;
- the wireless data compression device generates second compression indication information according to the jth group of data, where the second compression indication information is used to indicate the M Group data carrying a payload and group data not carrying a payload, the second compression indication
- the group data and the k 2 group data carrying the payload in the M group data are encapsulated to generate the packet, where the packet includes the first payload, the second payload, and the quantity of the frequency domain data, where the frequency domain data
- the quantity is the number of loads included in the packet
- the first payload carries the first compression indication information and the k 1 group of data
- the second payload carries the second compression indication information and the k 2 sets of data
- the indication information includes the first compression indication information and the second compression indication information
- the k 1 is an integer greater than or equal to 0
- the k 2 is an integer greater than or equal to 0.
- the first compression indication information is an N-bit bitmap, and a position of an ith bit of the N-bit bitmap in the N-bit bitmap is a group identifier of the i-th group of data.
- the value of the ith bit is indication information corresponding to the group identifier of the ith group of data;
- the second compression indication information is a bitmap of M bits, and the jth bit of the bitmap of the M bit is in the The position in the bitmap of the M bits is the group identifier of the jth group of data, and the value of the jth bit is the indication information corresponding to the group identifier of the jth group of data.
- the message provided by the embodiment of the present invention can adopt the structure shown in FIG. 7(d).
- the first compression indication information in FIG. 7(d) is a bitmap of N bits mentioned in the embodiment of the present invention, and the first compression indication information may take the form of FIG. 7(a) or FIG. 7(b).
- the second compression indication information in FIG. 7(d) is a bitmap of M bits mentioned in the embodiment of the present invention, and the second compression indication information may take the form of FIG. 7(a) or FIG. 7(b).
- the wireless data compression device obtains a message according to the ith group of data, and the wireless data compression device generates third compression indication information according to the ith group of data, where the third compression indication information is used.
- the third compression indication information identifying the group comprising k 1 sets of data in each data set, the data set is k 1 N sets of data carried in the The group data of the payload, the k 1 is an integer greater than or equal to 0;
- the wireless data compression device generates fourth compression indication information according to the jth group of data, where the fourth compression indication information is used to indicate said M group of data carried in the payload of the group ID, the fourth compression indication information comprises a group identifier k 2 data sets each data set, the data set is k 2 M groups of data carried in the payload Group data, the k 2 being an integer greater than or equal to 0; the wireless data compression device, according to the third compression indication information and the fourth compression indication information, to the
- the wireless data compression device obtains a message according to the ith group of data, and the wireless data compression device generates a fifth compression indication information according to the ith group data, where the fifth compression indication information is used. And indicating, in the group N data, a group identifier that does not carry a payload, where the fifth compression indication information includes a group identifier of the i-th group data; and the wireless data compression device generates a first group according to the j-th group data a sixth compression indication information, where the sixth compression indication information is used to indicate a group identifier that does not carry a payload in the M group data, and the sixth compression indication information includes a group identifier of the j-th group data; the wireless And the data compression device encapsulates the k 1 group data and the k 2 group data according to the fifth compression indication information and the sixth compression indication information, and generates the packet, where the packet is carried by a payload
- the wireless data compression device may send the data group carrying the payload in at least two frequency domain data without including the group data that does not carry the payload, and send the packet to the packet to the packet.
- the wireless data decompression device helps to improve the transmission efficiency of wireless data and further saves bandwidth.
- FIG. 8 is a flowchart of a method for transmitting wireless data according to Embodiment 1 of the present invention.
- FIG. 8 is a diagram of a wireless data transmission method according to Embodiment 1 of the present invention, from the perspective of a wireless data decompressing apparatus.
- the wireless data decompressing device may be the wireless data decompressing device 214 or the wireless data decompressing device 222 of FIG.
- the wireless data compression device may also be the wireless data decompressing device shown in FIG. 4(a) or 4(b).
- the wireless data transmission method provided in the first embodiment of the present invention is described in detail below.
- the wireless data decompressing device receives the packet sent by the wireless data compression device, where the packet is a packet generated according to the first frequency domain data, where the first frequency domain data includes N sets of data, where N is greater than or An integer equal to 1, the packet does not carry the i-th group of data, the i-th group of data does not carry a payload, and the i-th group of data is one of the N sets of data, the packet includes The indication information is used to indicate that the i-th group data does not carry a payload.
- the packet in the embodiment of the present invention is the same as the packet in the embodiment corresponding to FIG. 6, and details are not described herein again.
- the wireless data decompression device decompresses the packet according to the indication information included in the packet, and obtains decompressed first frequency domain data, where the decompressed first frequency is obtained.
- the domain data includes the i-th group of data.
- the wireless data decompressing device may obtain the decompressed first frequency domain data according to any one of the following three manners.
- the packet comprises a first set of compressed data k 1 and said N sets indication information carried in the data payload, the first compression indication information to the indication, the first indication information compression And indicating the group data carrying the payload and the group data not carrying the payload, where the first compression indication information includes a group identifier of each group of the N groups of data and the group identifier
- the indication information, the indication information corresponding to the group identifier is used to indicate whether the group corresponding to the group identifier carries a payload, and the indication information corresponding to the group identifier of the i-th group data is used to indicate that the i-th group data is not Carrying a payload, the k 1 being an integer greater than or equal to zero.
- the wireless data decompressing device decompresses the packet according to the indication information included in the packet, and obtaining the decompressed first frequency domain data includes: the wireless data decompressing device according to the The first compression indication information included in the packet, the k 1 group data is obtained from the payload of the packet; the wireless data decompression device is configured according to the ith group included in the first compression indication information And determining, by the group identifier of the data, the i-th group of data; the wireless data decompressing device, according to the group identifier of the i-th group of data and the group identifier of each group of the k 1 group of data, The N sets of data are reorganized to obtain the decompressed first frequency domain data.
- the first compression indication information is a bitmap of N bits, and the position of the i-th bit of the N-bit bitmap in the bitmap of the N-bit is a group identifier of the i-th group of data, The value of the i-th bit is the indication information corresponding to the group identifier of the i-th group of data.
- the message carrying indication information comprises a second compression set of data and the N k 1 sets of data payload, the second compression indication information to the indication information, the second indication information compression And indicating, in the N group of data, a group identifier that carries a payload, where the second compression indication information includes a group identifier of each group of data in the k 1 group of data, where k 1 is an integer greater than or equal to 0.
- the wireless data decompressing device decompresses the packet according to the indication information included in the packet, and obtaining the decompressed first frequency domain data includes: the wireless data decompressing device according to the And the second compression indication information included in the message, the k 1 group data is obtained from a payload of the message; the wireless data decompression device is configured according to a value of N and each of the k 1 group data a group identifier of the data, the first group of data is restored; the wireless data decompressing device is configured to the group N according to the group identifier of the i-th group of data and the group identifier of each group of the data in the k 1 group of data The data is reorganized to obtain the decompressed first frequency domain data.
- the packet includes the third compression indication information and the k 1 group data carrying the payload in the N group of data, where the third compression indication information is the indication information, and the third compression indication information is used. And indicating, in the N group of data, a group identifier that does not carry a payload, where the third compression indication information includes a group identifier of the i-th group of data, where k 1 is an integer greater than or equal to 0.
- the wireless data decompressing device decompresses the packet according to the indication information included in the packet, and obtaining the decompressed first frequency domain data includes: the wireless data decompressing device according to the The third compression indication information includes a group identifier of the i-th group of data, and the i-th group data is restored; the wireless data decompressing device is configured according to the group identifier of the i-th group data and the k 1 group data The group identifier of each group of data is reorganized to obtain the decompressed first frequency domain data.
- the packet received by the wireless data decompressing device carries the first compression indication information, where the packet includes the group data carrying the payload in the N sets of data, where the N group of data is included.
- the data data that does not carry the payload is present, and the wireless data decompression device can obtain the first decompressed according to the first indication information carried in the received packet and the group data carrying the payload in the first frequency domain data. Frequency domain data helps reduce bandwidth requirements and network construction costs.
- the wireless data decompressing device receives the first compressed indication information, and the packet does not include any one of the N sets of data, that is, the group data carrying the payload does not exist in the N sets of data.
- the wireless data decompression device can obtain the decompressed first frequency domain data according to the first indication information carried in the received packet, which helps to reduce bandwidth requirements and network construction costs.
- the packet received by the wireless data decompression device carries the second compression indication information or the third compression indication information, and can obtain the same effect that the packet received by the wireless data decompression device carries the first compression indication information, and is no longer Narration.
- the wireless data decompressing apparatus can obtain the decompressed first frequency domain data and solution from the message.
- the compressed second frequency domain data The method for obtaining the decompressed first frequency domain data in the message is the same as the above method. Only the method for obtaining the decompressed second frequency domain data in the message will be described below.
- the message further includes second frequency domain data, the second frequency domain data includes M group data, and the packet does not carry the jth group data, where the message The j group data does not carry a payload, the jth group data is a group data in the M group data, M is an integer greater than or equal to 1, and the indication information is further used to indicate that the jth group data is not Carry the payload.
- the wireless processing decompression device further decompresses the packet according to the indication information included in the packet, to obtain decompressed second frequency domain data, and the decompressed second frequency domain
- the data includes the jth set of data.
- the wireless data decompressing apparatus may obtain the decompressed second frequency domain data in any of the following three manners.
- the packet includes a first payload, a second payload, and a quantity of frequency domain data, where the number of the frequency domain data is a quantity of the load included in the packet, and the first payload includes the first compression indication information.
- the N group of data carrying the k 1 group data of the payload where the first compression indication information is used to indicate the group data carrying the payload in the N group data and the group data not carrying the payload
- the a compression indication information includes group identification of each set of data in the N sets of data and indication information corresponding to a group identifier of each set of data in the N sets of data, group identifier of each set of data in the N sets of data
- Corresponding indication information is used to indicate whether the payload is carried, the indication information corresponding to the group identifier of the i-th group data is used to indicate that the i-th group data does not carry a payload, and the second payload includes a second compression indication information.
- the second set of data compression indication information for indicating the M groups of data carried in the payload of the data set and does not carry the payload
- the second The compression indication information includes indication information corresponding to a group identifier of each group of data in the M group data and a group identifier of each group of data in the M group data, and an indication corresponding to a group identifier of each group of data in the M group data
- the information is used to indicate whether the payload is carried, and the indication information corresponding to the group identifier of the j-th group data is used to indicate that the j-th group data does not carry a payload, and the second frequency domain data includes the M-group data.
- the indication information includes the second compression indication information and the first compression indication information
- the k 1 and the k 2 are integers greater than or equal to 0.
- Obtaining, by the wireless data decompressing device, the second frequency domain data that is decompressed includes: the wireless data decompressing device, according to the second compression indication information included in the packet, from the second payload of the packet Acquiring the k 2 group data; the wireless data decompressing device restores the j th group data according to the indication information corresponding to the group identifier of the j th group data; the wireless data decompressing device according to the And determining, by the group identifier of the j group data and the group identifier of each group of the data in the k 2 group data, the M group data is recombined to obtain the decompressed second frequency domain data.
- the first compression indication information is an N-bit bitmap, and the position of the ith bit of the N-bit bitmap in the N-bit bitmap is the ith group a group identifier of the data, the value of the i-th bit is indication information corresponding to the group identifier of the i-th group data;
- the second compression indication information is a bitmap of M bits, and the bitmap of the M-bit bitmap The position of the j bit in the bitmap of the M bit is the group identifier of the jth group of data, and the value of the jth bit is the indication information corresponding to the group identifier of the jth group of data.
- the packet header of the packet includes the first payload, the second payload, and the quantity of the frequency domain data, where the number of the frequency domain data is the number of payloads included in the packet.
- the first payload includes third compression indication information and k 1 group data carrying payloads in the N sets of data.
- the third compression indication information is used to indicate a group identifier that carries a payload in the N sets of data.
- the third compression indication information includes a group identifier of each group of data in the k 1 group of data.
- the second payload includes fourth compression indication information and k 2 sets of data carrying payloads in the M sets of data.
- the fourth compression indication information is used to indicate a group identifier that carries a payload in the M group data.
- the fourth compression indication information includes a group identifier of each group of data in the k 2 group data.
- the k 1 and the k 2 are each an integer greater than or equal to zero.
- the indication information includes the third compression indication information and the fourth compression indication information.
- Obtaining, by the wireless data decompressing device, the second frequency domain data after decompression comprises: the wireless data decompressing device, according to the fourth compression indication information included in the packet, from the second payload of the packet Acquiring the k 2 group data; the wireless data decompressing device restores the j th group data according to a group identifier of each set of data in the k 2 group data and a value of M; the wireless data decompressing the device group identifier identifying the group of data sets j k 2, and the set of data of each data, said data set M recombination to obtain a second frequency domain data after the decompression.
- the packet header of the packet includes a first payload, a second payload, and a quantity of frequency domain data, where the number of the frequency domain data is a number of payloads included in the packet.
- the first payload includes fifth compression indication information and k 1 set of data carrying payloads in the N sets of data.
- the fifth compression indication information is used to indicate a group identifier of the N group of data that does not carry a payload, and the fifth compression indication information includes a group identifier of the i-th group data.
- the second payload includes sixth compression indication information and k 2 sets of data carrying payloads in the M sets of data.
- the sixth compression indication information is used to indicate a group identifier that does not carry a payload in the M group data, and the sixth compression indication information includes a group identifier of the j-th group data.
- the k 1 and the k 2 are each an integer greater than or equal to zero.
- the indication information includes the fifth compression indication information and the sixth compression indication information.
- Obtaining the decompressed second frequency domain data by the wireless data decompressing apparatus includes: the wireless data decompressing apparatus according to the group of the jth group data in the sixth compression indication information included in the packet Identifying, the k 2 group data is obtained from the second payload of the message; the wireless data decompressing device restores the j th group data according to the group identifier of the j th group data and the value of M; The wireless data decompressing apparatus reorganizes the M group data according to the group identifier of the jth group data and the group identifier of each group of the k 2 group data, to obtain the decompressed Two-frequency domain data.
- the wireless data decompression device can learn each group of the N groups of data according to at least two pieces of compression indication information, such as the first compression indication information and the second compression indication information, carried in the packet. Whether the data carries a payload.
- the wireless data decompression device can also know whether each set of data in the M group data carries a payload according to at least two pieces of compression indication information carried in the message.
- the wireless data decompression device may obtain the first frequency domain data and the second frequency domain according to the first payload, the second payload, the first compression indication information, and the second compression indication information in the packet Data helps improve the efficiency of wireless data transmission.
- FIG. 9 is a schematic diagram of a network scenario for transmitting wireless data according to Embodiment 2 of the present invention.
- the network shown in Figure 9 can be used to transmit wireless data.
- the first device 91 is capable of communicating with devices in the EPC (not shown in Figure 9).
- the first device 91 can communicate with the second device 92, such as with the second device 92 over a packet network, link, or fiber optic.
- the first device 91 includes a baseband processing module 911, a wireless data compression device 912, and a wireless data decompressing device 913.
- the second device 92 includes a radio frequency processing module 921, a wireless data decompressing device 922, and a wireless data compression device 923.
- the wireless data compression device 912 can be the same as the wireless data compression device 923.
- the wireless data decompressing device 913 can be the same as the wireless data decompressing device 922.
- the communication between the first device 91 and the second device 92 can be divided into a downlink direction and an uplink direction.
- the downlink direction is a direction in which the first device 91 sends data to the second device 92
- the uplink direction is a direction in which the second device 92 sends data to the first device 91.
- the downlink direction is a direction in which the second device 92 sends data to the first device 91
- the uplink direction is a direction in which the first device 91 sends data to the second device 92.
- the first device 91 and the second device 92 in Fig. 9 are capable of implementing two-way communication. If one-way communication is implemented between the first device 91 and the second device 92, the first device 91 and the second device 92 may include a partial structure in FIG. 9, such as: if the first device 91 is implemented to be sent to the second device 92 Data or information, the first device 91 includes a baseband processing module 911 and a wireless data compression device 912. Accordingly, the second device 92 includes a radio frequency processing module 921 and a wireless data decompressing device 922. If the second device 92 is implemented to transmit data or information to the first device 91, the second device 92 includes a radio frequency processing module 921 and a wireless data compression device 923. Accordingly, the first device 91 includes a baseband processing module 911 and wireless data decompression. Device 913.
- the baseband processing module 911 of the first device 91 can convert the received wireless data into frequency domain data.
- the baseband processing module 911 transmits the frequency domain data to the wireless data compression device 912.
- the wireless data compression device 912 compresses the frequency domain data to generate a message, where the message does not include the i-th group of data in the frequency domain data that does not carry a payload, and the message includes indication information,
- the indication information is used to indicate that the i-th group data does not carry a payload, and the i-th group data is any one of the at least one group of data.
- the wireless data compression device 912 transmits the message to the wireless data decompressing device 922 of the second device 92.
- the wireless data decompressing device 922 of the second device 92 decompresses the received message to restore the i-th group of data that does not carry the payload.
- the wireless data decompressing device 922 obtains the decompressed frequency domain data according to the group data carrying the payload and the ith group data not carrying the payload in the at least one group of data included in the message.
- the wireless data decompressing device 922 transmits the decompressed frequency domain data to the radio frequency processing module 921.
- the RF processing module 921 can convert the decompressed frequency domain data into a radio frequency signal.
- the radio frequency signal is transmitted through an antenna (not shown in FIG. 9).
- the radio frequency processing module 921 of the second device 92 receives the radio frequency signal through an antenna (not shown in FIG. 9).
- the radio frequency processing module 921 converts the received radio frequency signal into a frequency domain signal.
- the radio frequency processing module 921 transmits the frequency domain signal to the wireless data compression device 923.
- the wireless data compression device 923 can process the frequency domain data in the manner of the wireless data compression device 912 in the above implementation manner, and the wireless data decompression device 913 in the first device 91 can adopt the wireless in the above implementation manner.
- the decompressed frequency domain data is obtained in the manner of the data decompressing means 922.
- the wireless data decompressing device 913 transmits the decompressed frequency domain data to the baseband processing module 911 of the first device 91.
- the baseband processing module 911 converts the decompressed frequency domain data into time domain data and transmits the time domain data.
- FIG. 10(a) is a schematic diagram of a wireless data compression apparatus according to Embodiment 2 of the present invention.
- the wireless data compression device shown in FIG. 10(a) may be any one of the wireless data compression devices in the network shown in FIG.
- the wireless data compression apparatus shown in FIG. 10(a) includes a processor 1001, a memory 1002, a communication interface 1003, and a communication bus 1004.
- the processor 1001, the memory 1002, and the communication interface 1003 communicate via the communication bus 1004.
- the processor 1001 can be a CPU, NP or other integrated circuit.
- the memory 1002 can be used to store programs.
- the memory 1002 is further configured to store indication information, such as one or more of the compression indication information mentioned in the embodiment of the present invention, such as the first compression indication information and/or the second compression indication information, where the information is no longer used.
- indication information such as one or more of the compression indication information mentioned in the embodiment of the present invention, such as the first compression indication information and/or the second compression indication information, where the information is no longer used.
- the baseband processing module 911 of FIG. 9 and the wireless data compression device 912 further include an IDFT module (not shown in FIG. 9)
- the RF processing module 921 of FIG. 9 and the wireless data compression device 923 further include an IDFT module.
- the IDFT module converts the frequency domain data output by the baseband processing module 911 or the radio frequency processing module 921 into the first time domain data
- the wireless data compression device shown in FIG. 10(a) includes The processor 1001 adds an operation of converting the first time domain data into the first frequency domain data based on the processor 301 included in the apparatus shown in FIG. 3(a).
- the executable instruction included in the program read by the processor 1001 from the memory 1002 receives the first time domain data through the communication interface 1003, and the first time domain data is first antenna carrier data.
- the first antenna carrier data may be antenna carrier IQ data.
- the processor 1001 can be the first The time domain data is subjected to DFT transform to obtain the first frequency domain data. If the first time domain data is time domain IQ data, the first frequency domain data is frequency domain IQ data.
- the wireless data compression device may further include a frequency domain radio interface (Frequency Domain Radio Interface, FRI for short) processing module (not shown in FIG. 10(a)), and the FRI processing module is configured according to The first compression indication information and the N sets of data included in the first frequency domain data obtain a message.
- the FRI processing module sends the message.
- the first compression indication information and the message are the same as the corresponding content in FIG. 3( a ), and details are not described herein again.
- the FRI processing module can implement the function of the processor 1001 in FIG. 10(a) to obtain the message and the function of transmitting the message through the communication interface 1003.
- the processor 1001 determines, according to a threshold value, whether each set of data in the N sets of data included in the first frequency domain data carries a payload to determine a group that does not carry a payload. Data, such as the i-th set of data.
- the message obtained by the processor 1001 includes group data carrying a payload, and the processor 1001 sends the message carrying the first frequency domain data to the wireless data decompressing device, which helps reduce bandwidth requirements and network construction costs.
- the wireless data compression apparatus shown in FIG. 10(a) can also process at least two frequency domain data.
- the wireless data compression apparatus shown in FIG. 10(a) can also process at least two frequency domain data.
- FIG. 10(b) is a schematic diagram of a wireless data compression apparatus according to Embodiment 2 of the present invention.
- the wireless data compression apparatus shown in FIG. 10(b) includes a first obtaining unit 1005, a first determining unit 1006, a second obtaining unit 1007, a transmitting unit 1008, and a receiving unit 1009.
- the wireless data compression apparatus shown in FIG. 10(b) further includes: a third obtaining unit 1010 and a second determining unit 1011.
- the third obtaining unit 1010 and the second determining unit 1011 are the same as the corresponding contents in FIG. 3(b), and details are not described herein again.
- the first obtaining unit 1005 is an optional unit. If the baseband processing module 911 of FIG.
- the wireless data compression device 912 further includes an IDFT module (not shown in FIG. 9), and/or the radio frequency processing module 921 of FIG.
- the wireless data compression device 923 further includes an IDFT module (not shown in FIG. 9), and the wireless data compression device of FIG. 10(b) includes the first obtaining unit 1005, otherwise the wireless data compression device of FIG. 10(b) does not include The first obtaining unit 1005.
- the wireless data compression device shown in FIG. 10(b) and the wireless data compression device shown in FIG. 10(a) may be the same device, for example, the wireless data compression device 912 or the wireless data compression device in the network shown in FIG. 923. It can be considered that Fig. 10(a) shows the content included in one wireless data compression device from a physical point of view, and Fig. 10(b) shows the content included in a wireless data compression device from a logical point of view.
- the transmitting function of the transmitting unit 1008 in FIG. 10(b) can be completed by the processor 1001 and the communication interface 1003 in FIG. 10(a), and the communication interface 1003 can include at least one physical interface.
- the first obtaining unit 1005, the first determining unit 1006, and the second obtaining unit 1007 in FIG. 10(b) may be implemented by the processor 1001 in FIG. 10(a) according to executable instructions stored in the memory 1002, the processor 1001 At least one physical processor can be included.
- the receiving function of the receiving unit 1009 in FIG. 10(b) can be performed cooperatively by the processor 1001 and the communication interface 1003 in FIG. 10(a).
- the third obtaining unit 1010 and the second determining unit 1011 in FIG. 10(b) may be implemented by the processor 1001 in FIG. 10(a) according to executable instructions stored in the memory 1002.
- the contents repeated in FIG. 10(b) and FIG. 10(a) are not described in detail in the embodiment corresponding to FIG. 10(b).
- the receiving unit 1009 in FIG. 10(b) is configured to receive first time domain data, where the first time domain data is first antenna carrier data obtained from the first device 91 or the second device 92;
- the unit 1005 is specifically configured to perform DFT on the first time domain data to obtain the first frequency domain data.
- the first obtaining unit 1005 may convert the received first time domain data into the first frequency domain data.
- the first determining unit 1006 determines, according to the threshold value, whether each set of data in the N sets of data included in the first frequency domain data carries a payload to determine group data that does not carry a payload, such as the i-th group data.
- the message obtained by the second obtaining unit 1007 includes group data carrying a payload.
- the sending unit 1008 sends the message carrying the first frequency domain data to the wireless data decompressing device, which helps reduce bandwidth requirements and network construction costs.
- the wireless data compression apparatus shown in FIG. 10(b) can also process at least two frequency domain data.
- the wireless data compression apparatus shown in FIG. 10(b) can also process at least two frequency domain data.
- FIG. 10(c) is a schematic diagram of a wireless data compression apparatus according to Embodiment 2 of the present invention.
- Figure 10 The wireless data compression device shown in (c) is based on the wireless data compression device shown in FIG. 10(a), and the decider 1016 is added, and the decider in the wireless data compression device shown in FIG. 10(c) is added. 1016 is the same as the decider 316 of the wireless data compression apparatus shown in FIG. 3(c).
- the processor 1012 in the wireless data compression apparatus shown in FIG. 10(c) can implement the operations implemented by the processor 312 in the wireless data compression apparatus shown in FIG. 3(c), and can also implement FIG. 10(a). The operations implemented by the processor 1001 in the illustrated wireless data compression device are not described herein.
- FIG. 11(a) is a schematic diagram of a wireless data decompressing apparatus according to Embodiment 2 of the present invention.
- the wireless data decompressing apparatus shown in Fig. 11(a) may be any one of the wireless data decompressing apparatuses in the network shown in Fig. 9.
- the wireless data decompressing apparatus shown in FIG. 11(a) includes a processor 1101, a memory 1102, a communication interface 1103, and a communication bus 1104.
- the processor 1101, the memory 1102, and the communication interface 1103 communicate via a communication bus 1104.
- the processor 401 can be a CPU or an NP.
- Memory 1102 can be used to store programs.
- the processor 1101 performs an operation in accordance with executable instructions included in a program read from the memory 1102.
- the baseband processing module 911 and the wireless data decompressing device 913 of FIG. 9 further include a DFT module (not shown in FIG. 9), and/or the radio processing module 921 and the wireless data decompressing device 922 further include a DFT module ( 9 is not shown), the DFT module can convert time domain data from the wireless data decompressing device into corresponding frequency domain data, and then the processor 1101 in the wireless data decompressing device shown in FIG. 11(a) In addition to the operations that can be implemented by the processor 401 in the first embodiment, the decompressed first frequency domain data can be converted into corresponding time domain data.
- the processor 1101 further performs IDFT on the decompressed first frequency domain data to obtain first time domain data.
- the first time domain data is time domain data corresponding to the decompressed first frequency domain data.
- the first time domain data obtained by the processor 1101 may be the same as the first time domain data obtained by the wireless data compression device, or may be different from the first time domain data obtained by the wireless data compression device.
- the wireless data decompressing apparatus shown in FIG. 11(a) is the wireless data decompressing apparatus 913 in the network shown in FIG. 9, the processor 1101 further transmits the above to the baseband processing module 911 via the communication interface 1103. First time domain data. If the wireless data decompressing apparatus shown in FIG. 11(a) is the wireless data decompressing apparatus 922 in the network shown in FIG. 9, the processor 1101 also passes through the communication interface 1103.
- the frequency processing module 921 sends the first time domain data.
- the decompression function implemented in the wireless data decompressing apparatus of FIG. 11(a) may be an FRI processing module.
- the FRI processing module receives the message sent by the wireless data compression device.
- the FRI processing module decompresses the packet to obtain the decompressed first frequency domain data, and specifically obtains the content of the decompressed first frequency domain data.
- the FRI processing module can implement the function of the processor 1101 in FIG. 11(a) to obtain the decompressed first frequency domain data and the function of the processor 1101 to receive the message through the communication interface 1103.
- the packet received by the wireless data decompressing device carries the first compression indication information, where the packet includes the group data carrying the payload in the N sets of data, and the N
- the group data includes the group data that does not carry the payload
- the processor 1101 can obtain the decompressed first according to the first indication information carried in the received packet and the group data carrying the payload in the first frequency domain data.
- a frequency domain data helps to reduce bandwidth requirements and network construction costs.
- the processor 1101 receives the packet carrying the first compression indication information, where the packet does not include any one of the N sets of data, that is, the group data carrying the payload does not exist in the N sets of data, and the wireless data
- the decompressing device can obtain the decompressed first frequency domain data according to the first indication information carried in the received packet.
- the processor 1101 is capable of converting the decompressed first frequency domain into corresponding time domain data.
- the wireless data decompressing apparatus provided by the embodiment of the invention helps to reduce bandwidth requirements and network construction costs.
- the packet received by the wireless data decompression device carries the second compression indication information or the third compression indication information, and can obtain the same effect that the packet received by the wireless data decompression device carries the first compression indication information, and is no longer Narration.
- FIG. 11(b) is a schematic diagram of a wireless data decompressing apparatus according to Embodiment 2 of the present invention.
- the wireless data decompressing apparatus shown in FIG. 11(b) includes a receiving unit 1105, a decompressing unit 1106, an obtaining unit 1107, and a transmitting unit 1108.
- the obtaining unit 1107 is the same as the obtaining unit 407 in the wireless data decompressing apparatus provided in the first embodiment, and details are not described herein again.
- the receiving unit 1105 is the same as the receiving unit 405 in the wireless data decompressing apparatus provided in the first embodiment, and details are not described herein again.
- the obtaining unit 1107 is an optional unit. If the baseband processing module 911 and the wireless data decompressing device 913 of FIG. 9 further include a DFT module (not shown in FIG. 9), and/or the radio processing module 921 and the wireless data decompressing device 922 further include a DFT module ( 9 is not shown), the DFT module can convert time domain data from the wireless data decompressing device into corresponding frequency domain data, and the wireless data decompressing device shown in FIG. 11(b) includes an obtaining unit 1107, Otherwise, the wireless data decompressing apparatus shown in FIG. 11(b) does not include the obtaining unit 1107.
- the wireless data decompressing apparatus shown in FIG. 11(b) and the wireless data decompressing apparatus shown in FIG. 11(a) may be the same apparatus, for example, any one of the wireless data decompressing apparatuses in the network shown in FIG. It can be considered that Fig. 11(a) shows the content included in one wireless data decompressing device from a physical point of view, and Fig. 11(b) shows the content included in a wireless data decompressing device from a logical point of view.
- the receiving function of the receiving unit 1105 in FIG. 11(b) can be cooperatively performed by the processor 1101 and the communication interface 1103 in FIG. 11(a), and the communication interface 1103 can include at least one physical interface.
- the 11(b) may be implemented by the processor 1101 in FIG. 11(a) according to executable instructions stored in the memory 1102, and the processor 1101 may include at least one physical processor.
- the obtaining unit 1107 in FIG. 11(b) can be implemented by the processor 1101 in FIG. 11(a) in accordance with executable instructions stored in the memory 1102.
- the transmitting function of the transmitting unit 1108 in Fig. 11(b) can be performed cooperatively by the processor 1101 and the communication interface 1103 in Fig. 11(a).
- the obtaining unit 1107 is configured to perform IDFT on the decompressed first frequency domain data to obtain first time domain data.
- the first time domain data is time domain data corresponding to the decompressed first frequency domain data.
- the first time domain data obtained by the processor 1101 may be the same as the first time domain data obtained by the wireless data compression device, or may be different from the first time domain data obtained by the wireless data compression device.
- the sending unit 1108 is configured to send the first time domain data to the first device 91 or the second device 92.
- the packet received by the wireless data decompression device provided by the embodiment of the present invention carries the first compression indication information, where the packet includes the group data carrying the payload in the N group of data, and the N group of data is not carried.
- the group data of the payload, the decompression unit 1106 is capable of obtaining a solution according to the first indication information carried in the received packet and the group data carrying the payload in the first frequency domain data.
- the obtaining unit 1107 is capable of converting the decompressed first frequency domain data into corresponding time domain data.
- the wireless data decompressing apparatus provided by the embodiment of the invention helps to reduce bandwidth requirements and network construction costs.
- the wireless data decompressing device receives the first compressed indication information, and the packet does not include any one of the N sets of data, that is, the group data carrying the payload does not exist in the N sets of data.
- the decompressing unit 1106 is configured to obtain the decompressed first frequency domain data according to the first indication information carried in the received packet.
- the obtaining unit 1107 is capable of converting the decompressed first frequency domain data into corresponding time domain data.
- the wireless data decompressing apparatus provided by the embodiment of the invention helps to reduce bandwidth requirements and network construction costs.
- the packet received by the wireless data decompression device carries the second compression indication information or the third compression indication information, and can obtain the same effect that the packet received by the wireless data decompression device carries the first compression indication information, and is no longer Narration.
- FIG. 12 is a flowchart of a method for transmitting wireless data according to Embodiment 2 of the present invention.
- FIG. 12 is a diagram of a wireless data transmission method according to Embodiment 2 of the present invention from the perspective of a wireless data compression apparatus.
- the wireless data compression device may be a wireless device capable of performing DFT according to the embodiment corresponding to FIG. 10(a), FIG. 10(b) or FIG. 10(c). a data compression device, wherein the wireless data compression device is capable of performing DFT processing on the received first time domain data and obtaining first frequency domain data.
- the wireless data transmission method provided in the second embodiment of the present invention is described in detail below.
- the wireless data transmission method provided by the second embodiment of the present invention is described by taking the direction in which the first device 91 transmits wireless data to the second device 92 as an example.
- the wireless data compression device receives the first time domain data.
- the wireless data compression device may obtain the first time domain data from a baseband processing module 911 included in the apparatus shown in FIG.
- the baseband processing module 911 may be a baseband processing chip for converting wireless data into time domain data or a software module for implementing the function, and details of the specific structure and function are not described herein.
- the wireless data compression apparatus obtains first frequency domain data, where the first frequency domain data includes N sets of data, and N is an integer greater than or equal to 1.
- the wireless data compression device may use the method adopted by the DFT module in the embodiment corresponding to FIG. 5 to convert the first time domain data into the first frequency domain data, and details are not described herein again.
- the wireless data compression device determines, according to the threshold value and the i-th group data in the N sets of data, whether the i-th group data carries a payload, where the i-th group data is in the N-group data. Any set of data.
- the wireless data compression apparatus determines that the i-th group of data does not carry a payload.
- the wireless data compression device obtains a packet according to the ith group of data, where the packet is a packet generated according to the first frequency domain data, and the packet does not carry the ith group data.
- the message includes indication information, where the indication information is used to indicate that the i-th group of data does not carry a payload.
- the wireless data compression device sends the message to a wireless data decompressing device.
- the content of 1202 to 1205 is the same as the content of 602 to 605 in the first embodiment, and details are not described herein again.
- the wireless data compression apparatus may convert the first time domain data into the first frequency domain data. Determining, by the wireless data compression device, whether each set of data in the N sets of data included in the first frequency domain data carries a payload to determine group data that does not carry a payload, such as the i-th group data. .
- the message obtained by the wireless data compression device includes group data carrying a payload, and does not include group data that does not carry a payload.
- the wireless data compression device transmits the message carrying the first frequency domain data to the wireless data decompressing device, which helps reduce bandwidth requirements and network construction costs.
- FIG. 13 is a flowchart of a method for transmitting wireless data according to Embodiment 2 of the present invention.
- FIG. 12 is a diagram of a wireless data transmission method according to Embodiment 2 of the present invention from the perspective of a wireless data decompressing apparatus.
- the wireless data decompressing apparatus may be a wireless data decompressing apparatus having an IDFT function according to the embodiment corresponding to FIG. 11(a) or FIG. 11(b).
- the wireless data decompressing apparatus is capable of performing IDFT processing on the decompressed first frequency domain data to obtain time domain data corresponding to the decompressed first frequency domain data.
- the wireless data transmission method provided by the second embodiment of the present invention is described by taking the direction in which the first device 91 transmits wireless data to the second device 92 as an example.
- the wireless data transmission method provided in the second embodiment of the present invention is described in detail below.
- the wireless data decompressing apparatus receives a packet sent by a wireless data compression apparatus, where
- the packet is a packet generated according to the first frequency domain data, where the first frequency domain data includes N sets of data, N is an integer greater than or equal to 1, and the packet does not carry the i-th group data, the ith The group data does not carry a payload, and the ith group data is one group data of the N group data, the message includes indication information, and the indication information is used to indicate that the ith group data does not carry a payload. .
- the wireless data decompression device decompresses the packet according to the indication information included in the packet, and obtains decompressed first frequency domain data, where the decompressed first frequency is obtained.
- the domain data includes the i-th group of data.
- the wireless data decompressing apparatus performs IDFT on the decompressed first frequency domain data to obtain first time domain data.
- the method for performing the IDFT operation by the wireless data decompressing device can be referred to the processing performed by the IDFT module in the embodiment corresponding to FIG. 5, and details are not described herein again.
- the first time domain data in 1303 may be the same as the first time domain data received by the wireless data compression device, or may be different from the first time domain data received by the wireless data compression device.
- 1301 to 1302 in the embodiment of the present invention are the same as those in 801 to 802 in FIG. 8, and details are not described herein again.
- the packet received by the wireless data decompressing device carries the first compression indication information, where the packet includes the group data carrying the payload in the N sets of data, where the N group of data is included. There is a group data that does not carry a payload, and the wireless data decompressing device can obtain the decompressed information according to the first indication information carried in the received packet and the group data carrying the payload in the first frequency domain data. First frequency domain data.
- the wireless data decompressing apparatus is capable of converting the decompressed first frequency domain data into corresponding time domain data.
- the wireless data decompressing apparatus provided by the embodiment of the invention helps to reduce bandwidth requirements and network construction costs.
- the wireless data decompressing device receives the first compressed indication information, and the packet does not include any one of the N sets of data, that is, the group carrying the payload does not exist in the N sets of data. Data, the wireless data decompression device is configured to obtain the decompressed first frequency domain data according to the first indication information carried in the received message.
- the wireless data decompressing apparatus is capable of converting the decompressed first frequency domain data into corresponding time domain data.
- the wireless data decompression device provided by the embodiment of the invention is helpful To reduce bandwidth requirements and network construction costs.
- the packet received by the wireless data decompression device carries the second compression indication information or the third compression indication information, and can obtain the same effect that the packet received by the wireless data decompression device carries the first compression indication information, and is no longer Narration.
- the embodiment of the invention also provides a system for transmitting wireless data, as shown in FIG.
- the system for transmitting wireless data includes a wireless data compression device and a wireless data decompression device.
- the wireless data compression device and the wireless data decompression device can communicate over an optical fiber or a packet network.
- the wireless data compression device may be the wireless data compression device shown in FIG. 3(a), FIG. 3(b) or FIG. 3(c). Accordingly, the wireless data decompression device may be FIG. 4(b). Or the wireless data decompressing device shown in FIG. 4(a).
- the wireless data compression device may be the wireless data compression device shown in FIG. 10(a), FIG. 10(b) or FIG. 10(c). Accordingly, the wireless data decompression device may be FIG. 11(b). Or the wireless data decompressing device shown in Fig. 11 (a).
- the specific structure of the wireless data compression device and the wireless data decompression device will not be described herein.
- the wireless data compression apparatus obtains first frequency domain data, the first frequency domain data includes N sets of data, and N is an integer greater than or equal to 1; the wireless data compression apparatus according to the threshold value and the N sets of data.
- the i-th group of data determining whether the i-th group data carries a payload, the i-th group data is any one of the N sets of data; the wireless data compression device determines the i-th group The data does not carry a payload; the wireless data compression device obtains a packet according to the ith data, the packet is a packet generated according to the first frequency domain data, and the packet does not carry the packet.
- the i-th group of data the message includes indication information, the indication information is used to indicate that the i-th group of data does not carry a payload; and the wireless data compression device sends the message to the wireless data decompression device.
- the wireless data compression device obtains the first frequency domain data, specifically: the wireless data compression device obtains the first frequency domain data from the BBU or the RRU.
- the wireless data decompressing device receives the packet sent by the wireless data compression device, where the packet is a packet generated according to the first frequency domain data, and the first frequency domain data includes N sets of data, where N is An integer greater than or equal to 1, the packet does not carry the i-th group of data, the i-th group of data does not carry a payload, and the i-th group of data is a group of the N sets of data, the report Briefcase
- the indication information is used to indicate that the ith group of data does not carry a payload; the wireless data decompression device decompresses the packet according to the indication information included in the packet, Obtaining the decompressed first frequency domain data, the decompressed first frequency domain data comprising the i-th group of data.
- the wireless data compression device obtains the message according to the ith group of data, and the wireless data compression device generates, according to the ith group data, first compression indication information, where the first compression indication is The information includes a group identifier of each of the N sets of data and indication information corresponding to the group identifier, where the indication information corresponding to the group identifier is used to indicate whether the group corresponding to the group identifier carries a payload, The indication information corresponding to the group identifier of the i-th data is used to indicate that the i-th group data does not carry a payload, and the first compression indication information is the indication information; the wireless data compression apparatus is configured according to the first compression Instructing information, the k 1 group data carrying the payload in the N sets of data is encapsulated, and the packet is generated, where the packet includes the first compression indication information and the k 1 group data, the k 1 is an integer greater than or equal to 0.
- the wireless data decompressing device decompresses the packet according to the indication information included in the packet, and obtaining the decompressed first frequency domain data specifically includes: decompressing the wireless data And the device acquires the k 1 group data from the payload of the packet according to the first compression indication information included in the packet; and the wireless data decompression device includes, according to the first compression indication information, And the indication information corresponding to the group identifier of the i-th group data is used to restore the i-th group data; the wireless data decompression device is configured according to the group identifier of the i-th group data and each group of the k 1 group data The group identifier is configured to recombine the N sets of data to obtain the decompressed first frequency domain data.
- the first compression indication information is an N-bit bitmap
- a position of an ith bit of the N-bit bitmap in the N-bit bitmap is a group identifier of the i-th group of data.
- the value of the i-th bit is indication information corresponding to the group identifier of the i-th group of data.
- the wireless data compression device obtains the message according to the ith group of data, and the wireless data compression device generates second compression indication information, where the second compression indication is generated according to the ith group data.
- the k 1 group data is encapsulated to generate the message, and the message includes the second compression indication information and the k 1 group data.
- the wireless data decompressing device decompresses the packet according to the indication information included in the packet, and obtaining the decompressed first frequency domain data specifically includes: decompressing the wireless data
- the device acquires the k 1 group data from the payload of the message according to the second compression indication information included in the message; the wireless data decompression device according to the value of N and the k 1 group data a group identifier of each set of data in the group, the ith group data is restored; the wireless data decompressing device is configured according to the group identifier of the i-th group data and the group identifier of each group of the k 1 group data
- the N sets of data are reorganized to obtain decompressed first frequency domain data.
- the wireless data compression device obtains the message according to the ith group of data, and the wireless data compression device generates third compression indication information, the third compression indication, according to the ith group data.
- the information is used to indicate a group identifier that does not carry a payload in the N sets of data, the third compression indication information includes a group identifier of the i-th group data, and the third compression indication information is the indication information;
- the wireless data compression device encapsulates the k 1 group data carrying the payload in the N sets of data according to the third compression indication information, and generates the packet, where the packet includes the third compression indication information.
- the k 1 set of data, the k 1 being an integer greater than or equal to 0.
- the wireless data decompressing device decompresses the packet according to the indication information included in the packet, and obtaining the decompressed first frequency domain data specifically includes: decompressing the wireless data
- the device restores the i-th group data according to the group identifier of the i-th group data included in the third compression indication information;
- the wireless data decompression device is configured according to the group identifier of the i-th group data and the k group 1 group identification data in each data set, the N sets of data reorganization to obtain a first frequency domain data decompressed.
- the wireless data compression apparatus and the wireless data decompression apparatus can also transmit at least two frequency domain data.
- Wireless number in the system provided by this embodiment According to the compression device, in addition to the functions that can be implemented by the wireless data compression device in the embodiment corresponding to FIG. 14, the second frequency domain data can be obtained, the second frequency domain data includes M group data, and M is greater than or An integer equal to 1; the wireless data compression device determines, according to the threshold value and the j-th data in the M-group data, whether the j-th group data carries a payload, and the j-th group data is the M Any one of the group data; the wireless data compression device determines that the jth group of data does not carry a payload.
- the wireless data decompressing apparatus can implement the functions that can be implemented by the wireless data decompressing apparatus in the embodiment corresponding to FIG. 14 , and can also be based on the indication information included in the packet. And decompressing the packet to obtain decompressed second frequency domain data, where the decompressed second frequency domain data includes the jth group of data.
- the wireless data compression device obtains the message according to the ith group of data, and the wireless data compression device generates, according to the ith group data, first compression indication information, where the first compression indication is
- the information includes indication information corresponding to a group identifier of each of the N sets of data and a group identifier of each set of data in the N sets of data, and an indication corresponding to the group identifier of each set of the N sets of data
- the information is used to indicate whether the payload is carried, and the indication information corresponding to the group identifier of the i-th group data is used to indicate that the ith group data does not carry a payload; and the wireless data compression device is configured according to the j-th group data.
- the second compression indication information includes group identifiers of each group of data in the M group data and indication information corresponding to group identifiers of each group of data in the M group data, the M group data
- the indication information corresponding to the group identifier of each group of data is used to indicate whether the payload is carried, and the indication information corresponding to the group identifier of the j-th group data is used to indicate that the j-th group data is not carried.
- the wireless data compression device performs effective on the k 1 group data carrying the payload and the M group data in the N sets of data according to the first compression indication information and the second compression indication information.
- the k 2 data of the payload is encapsulated to generate the packet, where the packet includes the first payload, the second payload, and the quantity of the frequency domain data, where the number of the frequency domain data is the number of loads included in the packet.
- the first payload carries the first compression indication information and the k 1 group data
- the second payload carries the second compression indication information and the k 2 group data, where the indication information includes the The first compression indication information and the second compression indication information, the k 1 being an integer greater than or equal to 0, and the k 2 being an integer greater than or equal to 0.
- the wireless data decompressing device decompresses the packet according to the indication information included in the packet, and obtaining the decompressed first frequency domain data specifically includes: decompressing the wireless data And the device acquires the k 1 group data from the payload of the packet according to the first compression indication information included in the packet; and the wireless data decompression device includes, according to the first compression indication information, And the indication information corresponding to the group identifier of the i-th group data is used to restore the i-th group data; the wireless data decompression device is configured according to the group identifier of the i-th group data and each group of the k 1 group data The group identifier is configured to recombine the N sets of data to obtain the decompressed first frequency domain data.
- the wireless data decompressing device decompresses the packet according to the indication information included in the packet, and obtaining the decompressed second frequency domain data specifically includes: decompressing the wireless data
- the device acquires the k 2 group data from a second payload of the message according to the second compression indication information included in the message;
- the wireless data decompression device is configured according to the group of the jth group data instruction information corresponding to the identifier, the reduction of the j-th group of data; said wireless data decompression device according to the group identifier identifying the group of data sets j k 2, and the set of data of each data, said The M group data is reorganized to obtain the decompressed second frequency domain data.
- the first compression indication information is an N-bit bitmap, and a position of an ith bit of the N-bit bitmap in the N-bit bitmap is a group identifier of the i-th group of data.
- the value of the ith bit is indication information corresponding to the group identifier of the ith group of data;
- the second compression indication information is a bitmap of M bits, and the jth bit of the bitmap of the M bit is in the The position in the bitmap of the M bits is the group identifier of the jth group of data, and the value of the jth bit is the indication information corresponding to the group identifier of the jth group of data.
- the wireless data compression device obtains a message according to the ith group of data, and the wireless data compression device generates third compression indication information according to the ith group of data, where the third compression indication information is used.
- the third compression indication information identifying the group comprising k 1 sets of data in each data set, the data set is k 1 N sets of data carried in the The group data of the payload, the k 1 is an integer greater than or equal to 0;
- the wireless data compression device generates fourth compression indication information according to the jth group of data, where the fourth compression indication information is used to indicate said M group of data carried in the payload of the group ID, the fourth compression indication information comprises a group identifier k 2 data sets each data set, the data set is k 2 M groups of data carried in the payload Group data, the k 2 being an integer greater than or equal to 0;
- the wireless data compression device according to the third compression indication information and the fourth compression indication information, to the k 1 group
- the obtaining, by the wireless data decompression device, the decompressed first frequency domain data comprises: the wireless data decompression device, according to the third compression indication information included in the packet, from the packet Obtaining the k 1 set of data in a load; the wireless data decompressing device restores the i th group data according to a value of N and a group identifier of each set of data in the k 1 set of data; the wireless data The decompressing device reorganizes the N sets of data according to the group identifier of the i-th group data and the group identifier of each set of data in the k 1 set of data, to obtain the decompressed first frequency domain data.
- the obtaining, by the wireless data decompressing device, the second frequency domain data that is decompressed comprises: the wireless data decompressing device, according to the fourth compression indication information included in the packet, from the packet Acquiring the k 2 sets of data in a second load; the wireless data decompressing device restores the j th group data according to a group identifier of each set of data in the k 2 set of data and a value of M; And the wireless data decompressing device reorganizes the M group data according to the group identifier of the jth group data and the group identifier of each group of the k 2 group data, to obtain the decompressed second frequency Domain data.
- the wireless data compression device obtains the message according to the ith group of data, and the wireless data compression device generates, according to the ith group of data, fifth compression indication information, and the fifth compression indication information.
- a group identifier for indicating that the payload is not carried in the N sets of data the fifth compression indication information includes a group identifier of the i-th group of data
- the wireless data compression device generates, according to the j-th group data a sixth compression indication information, where the sixth compression indication information is used to indicate a group identifier that does not carry a payload in the M group data, and the sixth compression indication information includes a group identifier of the j-th group data;
- the wireless data compression device encapsulates the k 1 group data and the k 2 group data according to the fifth compression indication information and the sixth compression indication information, to generate the packet, and the payload of the packet And carrying the fifth compression indication information, the sixth compression indication information, the k 1 group data, and the k 2 group data.
- the obtaining, by the wireless data decompressing device, the decompressed first frequency domain data comprises: the group of the i-th group data included by the wireless data decompressing device according to the fifth compression indication information Identifying, restoring the ith set of data; the wireless data decompressing apparatus reorganizing the N sets of data according to the group identifier of the i-th group of data and the group identifier of each set of data in the k 1 set of data And obtaining the decompressed first frequency domain data.
- the obtaining, by the wireless data decompressing device, the decompressed second frequency domain data specifically includes: a group of the jth group data included by the wireless data decompressing device according to the sixth compression indication information identifying, reducing the j-th group of data; said wireless data decompression device according to the group identifier identifying the group of data sets j k 2, and the data of each data set, the data set of recombinant M And obtaining the decompressed second frequency domain data.
- the wireless data compression device may compress at least two frequency domain data into one message and send the data to the wireless data decompression device to help provide wireless data transmission efficiency.
- the wireless data compression device can compress the first frequency domain data and the second frequency domain data into two packets, that is, one packet carries one frequency domain data.
- the wireless data compression device can compress the first frequency domain data and the second frequency domain data into two packets, that is, one packet carries one frequency domain data.
- the wireless data compression device may be located on the BBU side, and correspondingly, the wireless data decompression device is located on the RRU side, where the wireless data compression device may be
- the function module of the BBU may also be a device that is independent of the BBU setting; the wireless data decompressing device may be a functional module of the RRU or a device independent of the RRU setting.
- the wireless data compression device may be located on the RRU side, and correspondingly, the wireless data decompression device is located on the BBU side, where the wireless data compression device may be
- the above general purpose processor may be a microprocessor or the processor or any conventional processor.
- the steps of the method disclosed in the embodiment of the present invention may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
- the code implementing the above functions may be stored in a computer readable medium.
- Computer readable media includes computer storage media.
- a storage medium may be any available media that can be accessed by a computer.
- the computer readable medium may be a random access memory (English full name is random access memory, abbreviated as RAM), read-only memory (English full name is read-only memory, English abbreviation for ROM), Electrical erasable programmable read-only memory (English full name electrically erasable programmable read-only memory, abbreviated as EEPROM), read-only optical disc (English full name compact disc read-only memory, English abbreviation for CD-ROM) or other disc
- RAM random access memory
- read-only memory English full name is read-only memory, English abbreviation for ROM
- Electrical erasable programmable read-only memory English full name electrically erasable programmable read-only memory, abbreviated as EEPROM
- read-only optical disc English full name compact disc read-only memory, English abbreviation for CD-ROM
- the computer readable medium may be a compact disc (English full name compact disc, abbreviated as CD), a laser disc, a digital video disc (English full name digital video disc, abbreviated as DVD), a floppy disk or a Blu-ray disc.
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Abstract
本申请公开了一种用于传输无线数据的方法,有助于降低带宽的需求。该方法中,无线数据压缩装置获得第一频域数据,所述第一频域数据包括N组数据,N为大于或等于1的整数;所述无线数据压缩装置根据门限值和所述N组数据中的第i组数据,确定所述第i组数据是否携带有效载荷,所述第i组数据为所述N组数据中的任意一组数据;所述无线数据压缩装置确定所述第i组数据未携带有效载荷;所述无线数据压缩装置根据所述第i组数据,获得报文,所述报文为根据所述第一频域数据生成的报文,所述报文未携带所述第i组数据,所述报文包括指示信息,所述指示信息用于表示所述第i组数据未携带有效载荷;所述无线数据压缩装置发送所述报文。
Description
本申请要求于2015年9月17日提交中国专利局、申请号为CN201510595818.7、发明名称为“用于传输无线数据的方法、装置及系统”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
本发明涉及通信技术,尤其涉及一种用于传输无线数据的方法、一种无线数据压缩装置、一种无线数据解压缩装置和一种用于传输无线数据的系统。
为了降低无线接入网的部署难度,无线基站的功能可被拆分为基带单元(英文全称为baseband unit,简称为BBU)与射频拉远单元(英文全称为remote radio unit,简称为RRU)来实现,这种包括BBU和RRU的架构称为基于集中化处理、协作式无线电和实时云计算架构的绿色无线接入网(英文全称为clean,centralized processing,collaborative radio,and real-time cloud radio access network,简称为C-RAN)架构。
以C-RAN架构中BBU向RRU发送无线数据为例,BBU用于对来自演进型分组核心网(英文全称为evolved packet core,简称为EPC)的数据进行基带处理,获得时域数据。BBU向RRU发送BBU所获得的时域数据。RRU对所述时域数据进行处理,获得射频信号。RRU通过天线发送所获得的射频信号。无线接入网引入了C-RAN架构后,BBU与RRU间传输的是基带数字化后的数据,需要占用较大的带宽,还有待进一步改进。
发明内容
有鉴于此,本发明实施例提供一种用于传输无线数据的方法,有助于降低带宽的需求。
本发明实施例还提供一种无线数据压缩装置、无线数据解压缩装置和用
于传输无线数据的系统。
本发明实施例提供的技术方案如下。
第一方面,提供了一种用于传输无线数据的方法,包括:
无线数据压缩装置获得第一频域数据,所述第一频域数据包括N组数据,N为大于或等于1的整数;
所述无线数据压缩装置根据门限值和所述N组数据中的第i组数据,确定所述第i组数据是否携带有效载荷,所述第i组数据为所述N组数据中的任意一组数据;
所述无线数据压缩装置确定所述第i组数据未携带有效载荷;
所述无线数据压缩装置根据所述第i组数据,获得报文,所述报文为根据所述第一频域数据生成的报文,所述报文未携带所述第i组数据,所述报文包括指示信息,所述指示信息用于表示所述第i组数据未携带有效载荷;
所述无线数据压缩装置发送所述报文。
在第一方面的第一种可能的实现方式中,所述N组数据中的每组数据包括L1个数据,所述L1个数据中的每个数据对应一个子载波,L1为大于或等于1的整数;
所述无线数据压缩装置根据门限值和所述N组数据,确定所述N组数据中的第i组数据是否携带有效载荷包括:
所述无线数据压缩装置确定所述L1个数据是否包括L2个数值大于所述门限值的数据,所述L2个数值大于所述门限值的数据为L2个数据的每个数据对应的子载波的数值大于所述门限值,所述L2个数据的每个数据对应的子载波的数值为所述L2个数据的每个数据对应的子载波的矢量幅度的数值,L2小于或等于L1。
结合上述第一方面,还提供了第一方面的第二种可能的实现方式,所述N组数据中的每组数据包括L1个数据,所述L1个数据中的每个数据对应一个子载波,L1为大于或等于1的整数;
所述无线数据压缩装置根据门限值和所述N组数据,确定所述N组数据
中的第i组数据是否携带有效载荷包括:
所述无线数据压缩装置确定所述L1个数据对应的L1个子载波的数值的平均值是否大于所述门限值,所述L1个子载波中任意一个子载波的数值为所述任意一个子载波的矢量幅度的数值。
结合上述第一方面、第一方面的第一种可能的实现方式或第一方面的第二种可能的实现方式,还提供了第一方面的第三种可能的实现方式,所述无线数据压缩装置根据所述第i组数据,获得报文包括:
所述无线数据压缩装置根据所述第i组数据,生成第一压缩指示信息,所述第一压缩指示信息包括所述N组数据中的每组数据的组标识和所述组标识对应的指示信息,所述组标识对应的指示信息用于表示所述组标识对应的组是否携带有效载荷,所述第i组数据的组标识对应的指示信息用于表示所述第i组数据未携带有效载荷,所述第一压缩指示信息为所述指示信息;
所述无线数据压缩装置根据所述第一压缩指示信息,对所述N组数据中携带有效载荷的k1组数据进行封装,生成所述报文,所述报文包括所述第一压缩指示信息和所述k1组数据,所述k1为大于或等于0的整数。
结合上述第一方面的第三种可能的实现方式,还提供了第一方面的第四种可能的实现方式,所述第一压缩指示信息为N比特的位图,所述N比特的位图的第i比特在所述N比特的位图中的位置为所述第i组数据的组标识,所述第i比特的数值为所述第i组数据的组标识对应的指示信息。
结合上述第一方面,第一方面的第一种可能的实现方式或第一方面的第二种可能的实现方式,还提供了第一方面的第五种可能的实现方式,所述无线数据压缩装置根据所述第i组数据,获得报文包括:
所述无线数据压缩装置根据所述第i组数据,生成第二压缩指示信息,所述第二压缩指示信息用于指示所述N组数据中携带有效载荷的组标识,所述第二压缩指示信息包括k1组数据中的每组数据的组标识,所述k1组数据为所述N组数据中携带有效载荷的组数据,所述k1为大于或等于0的整数,所述第二压缩指示信息为所述指示信息;
所述无线数据压缩装置根据所述第二压缩指示信息,对所述k1组数据进行封装,生成所述报文,所述报文包括所述第二压缩指示信息和所述k1组数据。
结合上述第一方面,第一方面的第一种可能的实现方式或第一方面的第二种可能的实现方式,还提供了第一方面的第六种可能的实现方式,所述无线数据压缩装置根据所述第i组数据,获得报文包括:
所述无线数据压缩装置根据所述第i组数据,生成第三压缩指示信息,所述第三压缩指示信息用于指示所述N组数据中未携带有效载荷的组标识,所述第三压缩指示信息包括所述第i组数据的组标识,所述第三压缩指示信息为所述指示信息;
所述无线数据压缩装置根据所述第三压缩指示信息,对所述N组数据中携带有效载荷的k1组数据进行封装,生成所述报文,所述报文包括所述第三压缩指示信息和所述k1组数据,所述k1为大于或等于0的整数。
结合上述第一方面,或第一方面的第一种可能的实现方式至第一方面的第六种可能的实现方式中的任意一种可能的实现方式,还提供了第一方面的第七种可能的实现方式,所述无线数据压缩装置获得所述第一频域数据包括:
所述无线数据压缩装置接收第一时域数据,所述第一时域数据是从第一设备或第二设备获得的第一天线载波数据,所述第一设备是能够实现数字基带处理功能的设备,所述第二设备是能够实现射频功能的设备;
所述无线数据压缩装置对所述第一时域数据进行离散傅里叶变换,获得所述第一频域数据。
结合上述第一方面,第一方面的第一种可能的实现方式或第一方面的第二种可能的实现方式,还提供了第一方面的第八种可能的实现方式,还包括:
所述无线数据压缩装置获得第二频域数据,所述第二频域数据包括M组数据,M为大于或等于1的整数;
所述无线数据压缩装置根据门限值和所述M组数据中的第j组数据,确定所述第j组数据是否携带有效载荷,所述第j组数据为所述M组数据中的
任意一组数据;
所述无线数据压缩装置确定所述第j组数据未携带有效载荷。
结合上述第一方面的第八种可能的实现方式,还提供了第一方面的第九种可能的实现方式,所述M组数据中的每组数据包括L3个数据,所述L3个数据中的每个数据对应一个子载波,L3为大于或等于1的整数;
所述无线数据压缩装置根据门限值和所述M组数据中的第j组数据,确定所述第j组数据是否携带有效载荷包括:
所述无线数据压缩装置确定所述L3个数据是否包括L4个数值大于所述门限值的数据,所述L4个数值大于所述门限值的数据为L4个数据的每个数据对应的子载波的数值大于所述门限值,所述L4个数据的每个数据对应的子载波的数值为所述L4个数据的每个数据对应的子载波的矢量幅度的数值,L4小于或等于L3。
结合上述第一方面的第八种可能的实现方式,还提供了第一方面的第十种可能的实现方式,所述M组数据中的每组数据包括L3个数据,所述L3个数据中的每个数据对应一个子载波,L3为大于或等于1的整数;
所述无线数据压缩装置根据门限值和所述M组数据中的第j组数据,确定所述第j组数据是否携带有效载荷包括:
所述无线数据压缩装置确定所述L3个数据对应的L3个子载波的数值的平均值是否大于所述预设的门限值,所述L3个子载波中任意一个子载波的数值为所述任意一个子载波的矢量幅度的数值。
结合上述第一方面的第八种可能的实现方式、第一方面的第九种可能的实现方式或第一方面的第十种可能的实现方式,还提供了第一方面的第十一种可能的实现方式,所述无线数据压缩装置根据所述第i组数据,获得报文包括:
所述无线数据压缩装置根据所述第i组数据,生成第一压缩指示信息,所述第一压缩指示信息包括所述N组数据中的每组数据的组标识和所述N组数据中的每组数据的组标识对应的指示信息,所述N组数据中的每组数据的组
标识对应的指示信息用于表示是否携带有效载荷,所述第i组数据的组标识对应的指示信息用于表示所述第i组数据未携带有效载荷;
所述无线数据压缩装置根据所述第j组数据,生成第二压缩指示信息,所述第二压缩指示信息包括所述M组数据中每组数据的组标识和所述M组数据中每组数据的组标识对应的指示信息,所述M组数据中的每组数据的组标识对应的指示信息用于表示是否携带有效载荷,所述第j组数据的组标识对应的指示信息用于表示所述第j组数据未携带有效载荷;
所述无线数据压缩装置根据所述第一压缩指示信息和所述第二压缩指示信息,对所述N组数据中携带有效载荷的k1组数据和所述M组数据中携带有效载荷的k2组数据进行封装,生成所述报文,所述报文包括第一载荷、第二载荷和频域数据的数量,所述频域数据的数量为所述报文包括的载荷数量,所述第一载荷携带所述第一压缩指示信息和所述k1组数据,所述第二载荷携带所述第二压缩指示信息和所述k2组数据,所述指示信息包括所述第一压缩指示信息和所述第二压缩指示信息,所述k1为大于或等于0的整数,所述k2为大于或等于0的整数。
结合上述第一方面的第十一种可能的实现方式,还提供了第一方面的第十二种可能的实现方式,所述第一压缩指示信息为N比特的位图,所述N比特的位图的第i比特在所述N比特的位图中的位置为所述第i组数据的组标识,所述第i比特的数值为所述第i组数据的组标识对应的指示信息;
所述第二压缩指示信息为M比特的位图,所述M比特的位图的第j比特在所述M比特的位图中的位置为所述第j组数据的组标识,所述第j比特的数值为所述第j组数据的组标识对应的指示信息。
第二方面,提供了一种用于传输无线数据的方法,包括:
无线数据解压缩装置接收到报文,所述报文为根据第一频域数据生成的报文,所述第一频域数据包括N组数据,N为大于或等于1的整数,所述报文未携带第i组数据,所述第i组数据未携带有效载荷,所述第i组数据是所述N组数据中的一个组数据,所述报文包括指示信息,所述指示信息用于表
示所述第i组数据未携带有效载荷;
所述无线数据解压缩装置根据所述报文包括的所述指示信息,对所述报文进行解压缩,获得解压缩后的第一频域数据,所述解压缩后的第一频域数据包括所述第i组数据。
在第二方面的第一种可能的实现方式中,所述报文包括第一压缩指示信息和所述N组数据中携带有效载荷的k1组数据,所述第一压缩指示信息为所述指示信息,所述第一压缩指示信息包括所述N组数据中的每组数据的组标识和所述组标识对应的指示信息,所述组标识对应的指示信息用于表示所述组标识对应的组是否携带有效载荷,所述第i组数据的组标识对应的指示信息用于表示所述第i组数据未携带有效载荷,所述k1为大于或等于0的整数;
所述无线数据解压缩装置根据所述报文包括的所述指示信息,对所述报文进行解压缩,获得解压缩后的第一频域数据包括:
所述无线数据解压缩装置根据所述报文包括的所述第一压缩指示信息,从所述报文的载荷中获取所述k1组数据;
所述无线数据解压缩装置根据所述第一压缩指示信息包括的所述第i组数据的组标识对应的指示信息,还原所述第i组数据;
所述无线数据解压缩装置根据所述第i组数据的组标识和所述k1组数据中每组数据的组标识,对所述N组数据进行重组,获得所述解压缩后的第一频域数据。
结合上述第二方面的第一种可能的实现方式,还提供了第二方面的第二种可能的实现方式,所述第一压缩指示信息为N比特的位图,所述N比特的位图的第i比特在所述N比特的位图中的位置为所述第i组数据的组标识,所述第i比特的数值为所述第i组数据的组标识对应的指示信息。
结合上述第二方面,还提供了第二方面的第三种可能的实现方式,所述报文包括第二压缩指示信息和所述N组数据中携带有效载荷的k1组数据,所述第二压缩指示信息为所述指示信息,所述第二压缩指示信息用于指示所述N组数据中携带有效载荷的组标识,所述第二压缩指示信息包括所述k1组数据
中的每组数据的组标识,所述k1为大于或等于0的整数;
所述无线数据解压缩装置根据所述报文包括的所述指示信息,对所述报文进行解压缩,获得解压缩后的第一频域数据包括:
所述无线数据解压缩装置根据所述报文包括的所述第二压缩指示信息,从所述报文的载荷中获取所述k1组数据;
所述无线数据解压缩装置根据N的数值和所述k1组数据中的每组数据的组标识,还原所述第i组数据;
所述无线数据解压缩装置根据所述第i组数据的组标识和所述k1组数据中每组数据的组标识,对所述N组数据进行重组,获得解压缩后的第一频域数据。
结合上述第二方面,还提供了第二方面的第四种可能的实现方式,所述报文包括第三压缩指示信息和所述N组数据中携带有效载荷的k1组数据,所述第三压缩指示信息为所述指示信息,所述第三压缩指示信息用于指示所述N组数据中未携带有效载荷的组标识,所述第三压缩指示信息包括所述第i组数据的组标识,所述k1为大于或等于0的整数;
所述无线数据解压缩装置根据所述报文包括的所述指示信息,对所述报文进行解压缩,获得解压缩后的第一频域数据包括:
所述无线数据解压缩装置根据所述第三压缩指示信息包括的所述第i组数据的组标识,还原所述第i组数据;
所述无线数据解压缩装置根据所述第i组数据的组标识和所述k1组数据中每组数据的组标识,对所述N组数据进行重组,获得解压缩后的第一频域数据。
结合上述第二方面、第二方面的第一种可能的实现方式、第二方面的第二种可能的实现方式、第二方面的第三种可能的实现方式或第二方面的第四种可能的实现方式,还提供了第二方面的第五种可能的实现方式,还包括:
所述无线数据解压缩装置对所述解压缩后的第一频域数据进行反向离散傅里叶变换,获得第一时域数据;
所述无线数据解压缩装置向第一设备或第二设备发送所述第一时域数据,所述第一设备是能够实现数字基带处理功能的设备,所述第二设备是能够实现射频功能的设备。
结合上述第二方面,还提供了第二方面的第六种可能的实现方式,所述报文还包括第二频域数据,所述第二频域数据包括M组数据,所述报文未携带第j组数据,所述第j组数据未携带有效载荷,所述第j组数据是所述M组数据中的一个组数据,M为大于或等于1的整数,所述指示信息还用于表示所述第j组数据未携带有效载荷;
所述方法还包括:
所述无线数据解压缩装置根据所述报文包括的所述指示信息,对所述报文进行解压缩,获得解压缩后的第二频域数据,所述解压缩后的第二频域数据包括所述第j组数据。
结合上述第二方面的第六种可能的实现方式,还提供了第二方面的第七种可能的实现方式,所述报文包括第一载荷、第二载荷和频域数据的数量,所述频域数据的数量为所述报文包括的载荷数量,所述第一载荷包括第一压缩指示信息和所述N组数据中携带有效载荷的k1组数据,所述第一压缩指示信息包括所述N组数据中的每组数据的组标识和所述N组数据中的每组数据的组标识对应的指示信息,所述N组数据中的每组数据的组标识对应的指示信息用于表示是否携带有效载荷,所述第i组数据的组标识对应的指示信息用于表示所述第i组数据未携带有效载荷,所述第二载荷包括第二压缩指示信息和所述M组数据中携带有效载荷的k2组数据,所述第二压缩指示信息包括所述M组数据中每组数据的组标识和所述M组数据中每组数据的组标识对应的指示信息,所述M组数据中的每组数据的组标识对应的指示信息用于表示是否携带有效载荷,所述第j组数据的组标识对应的指示信息用于表示所述第j组数据未携带有效载荷,所述第二频域数据包括所述M组数据,M为大于或等于1的整数,所述指示信息包括所述第二压缩指示信息和所述第一压缩指示信息,所述k1和所述k2均为大于或等于0的整数;
所述无线数据解压缩装置根据所述报文包括的所述指示信息,对所述报文进行解压缩,获得解压缩后的第二频域数据包括:
所述无线数据解压缩装置根据所述报文包括的所述第二压缩指示信息,从所述报文的第二载荷中获取所述k2组数据;
所述无线数据解压缩装置根据所述第j组数据的组标识对应的指示信息,还原所述第j组数据;
所述无线数据解压缩装置根据所述第j组数据的组标识和所述k2组数据中的每组数据的组标识,对所述M组数据进行重组,获得解压缩后的第二频域数据。
结合上述第二方面的第七种可能的实现方式,还提供了第二方面的第八种可能的实现方式,所述第一压缩指示信息为N比特的位图,所述N比特的位图的第i比特在所述N比特的位图中的位置为所述第i组数据的组标识,所述第i比特的数值为所述第i组数据的组标识对应的指示信息;
所述第二压缩指示信息为M比特的位图,所述M比特的位图的第j比特在所述M比特的位图中的位置为所述第j组数据的组标识,所述第j比特的数值为所述第j组数据的组标识对应的指示信息。
第三方面,提供一种无线数据压缩装置,包括:
第一获得单元,用于获得第一频域数据,所述第一频域数据包括N组数据,N为大于或等于1的整数;
第一确定单元,用于根据门限值和所述N组数据中的第i组数据,确定所述第i组数据是否携带有效载荷,所述第i组数据为所述N组数据中的任意一组数据;
所述第一确定单元还用于确定所述第i组数据未携带有效载荷;
第二获得单元,用于根据所述第i组数据,获得报文,所述报文为根据所述第一频域数据生成的报文,所述报文未携带所述第i组数据,所述报文包括指示信息,所述指示信息用于表示所述第i组数据未携带有效载荷;
发送单元,用于发送所述报文。
在第三方面的第一种可能的实现方式中,所述N组数据中的每组数据包括L1个数据,所述L1个数据中的每个数据对应一个子载波,L1为大于或等于1的整数,所述第一确定单元具体用于:
确定所述L1个数据是否包括L2个数值大于所述门限值的数据,所述L2个数值大于所述门限值的数据为L2个数据的每个数据对应的子载波的数值大于所述门限值,所述L2个数据的每个数据对应的子载波的数值为所述L2个数据的每个数据对应的子载波的矢量幅度的数值,L2小于或等于L1。
结合上述第三方面,还提供了第三方面的第二种可能的实现方式,所述N组数据中的每组数据包括L1个数据,所述L1个数据中的每个数据对应一个子载波,L1为大于或等于1的整数,所述第一确定单元具体用于:
确定所述L1个数据对应的L1个子载波的数值的平均值是否大于所述门限值,所述L1个子载波中任意一个子载波的数值为所述任意一个子载波的矢量幅度的数值。
结合上述第三方面、第三方面的第一种可能的实现方式或第三方面的第二种可能的实现方式,还提供了第三方面的第三种可能的实现方式,所述第二获得单元具体用于:
根据所述第i组数据,生成第一压缩指示信息,所述第一压缩指示信息包括所述N组数据中的每组数据的组标识和所述组标识对应的指示信息,所述组标识对应的指示信息用于表示所述组标识对应的组是否携带有效载荷,所述第i组数据的组标识对应的指示信息用于表示所述第i组数据未携带有效载荷,所述第一压缩指示信息为所述指示信息;
根据所述第一压缩指示信息,对所述N组数据中携带有效载荷的k1组数据进行封装,生成所述报文,所述报文包括所述第一压缩指示信息和所述k1组数据,所述k1为大于或等于0的整数。
结合上述第三方面的第三种可能的实现方式,还提供了第三方面的第四种可能的实现方式,所述第一压缩指示信息为N比特的位图,所述N比特的位图的第i比特在所述N比特的位图中的位置为所述第i组数据的组标识,所
述第i比特的数值为所述第i组数据的组标识对应的指示信息。
结合上述第三方面,第三方面的第一种可能的实现方式或第三方面的第二种可能的实现方式,还提供了第三方面的第五种可能的实现方式,所述第二获得单元具体用于:
根据所述第i组数据,生成第二压缩指示信息,所述第二压缩指示信息用于指示所述N组数据中携带有效载荷的组标识,所述第二压缩指示信息包括k1组数据中的每组数据的组标识,所述k1组数据为所述N组数据中携带有效载荷的组数据,所述k1为大于或等于0的整数,所述第二压缩指示信息为所述指示信息;
根据所述第二压缩指示信息,对所述k1组数据进行封装,生成所述报文,所述报文包括所述第二压缩指示信息和所述k1组数据。
结合上述第三方面,第三方面的第一种可能的实现方式或第三方面的第二种可能的实现方式,还提供了第三方面的第六种可能的实现方式,所述第二获得单元具体用于:
根据所述第i组数据,生成第三压缩指示信息,所述第三压缩指示信息用于指示所述N组数据中未携带有效载荷的组标识,所述第三压缩指示信息包括所述第i组数据的组标识,所述第三压缩指示信息为所述指示信息;
根据所述第三压缩指示信息,对所述N组数据中携带有效载荷的k1组数据进行封装,生成所述报文,所述报文包括所述第三压缩指示信息和所述k1组数据,所述k1为大于或等于0的整数。
结合上述第三方面,或第三方面的第一种可能的实现方式至第单方面的第六种可能的实现方式中的任意一种可能的实现方式,还提供了第三方面的第七种可能的实现方式,所述无线数据压缩装置还包括接收单元,
所述接收单元用于接收第一时域数据,所述第一时域数据是从第一设备或第二设备获得的第一天线载波数据,所述第一设备是能够实现数字基带处理功能的设备,所述第二设备是能够实现射频功能的设备;
所述无线数据压缩装置对所述第一时域数据进行离散傅里叶变换,获得
所述第一频域数据。
结合上述第三方面,第三方面的第一种可能的实现方式或第三方面的第二种可能的实现方式,还提供了第三方面的第八种可能的实现方式,所述无线数据压缩装置还包括:
第三获得单元,用于获得第二频域数据,所述第二频域数据包括M组数据,M为大于或等于1的整数;
第二确定单元,用于根据门限值和所述M组数据中的第j组数据,确定所述第j组数据是否携带有效载荷,所述第j组数据为所述M组数据中的任意一组数据;
所述第二确定单元还用于确定所述第j组数据未携带有效载荷。
结合上述第三方面的第八种可能的实现方式,还提供了第三方面的第九种可能的实现方式,所述M组数据中的每组数据包括L3个数据,所述L3个数据中的每个数据对应一个子载波,L3为大于或等于1的整数;
所述第二确定单元具体用于:
确定所述L3个数据是否包括L4个数值大于所述门限值的数据,所述L4个数值大于所述门限值的数据为L4个数据的每个数据对应的子载波的数值大于所述门限值,所述L4个数据的每个数据对应的子载波的数值为所述L4个数据的每个数据对应的子载波的矢量幅度的数值,L4小于或等于L3。
结合上述第三方面的第八种可能的实现方式,还提供了第三方面的第十种可能的实现方式,所述M组数据中的每组数据包括L3个数据,所述L3个数据中的每个数据对应一个子载波,L3为大于或等于1的整数;
所述第二确定单元具体用于:
确定所述L3个数据对应的L3个子载波的数值的平均值是否大于所述预设的门限值,所述L3个子载波中任意一个子载波的数值为所述任意一个子载波的矢量幅度的数值。
结合上述第三方面的第八种可能的实现方式、第三方面的第九种可能的实现方式或第三方面的第十种可能的实现方式,还提供了第三方面的第十一
种可能的实现方式,所述第二获得单元具体用于:
根据所述第i组数据,生成第一压缩指示信息,所述第一压缩指示信息包括所述N组数据中的每组数据的组标识和所述N组数据中的每组数据的组标识对应的指示信息,所述N组数据中的每组数据的组标识对应的指示信息用于表示是否携带有效载荷,所述第i组数据的组标识对应的指示信息用于表示所述第i组数据未携带有效载荷;
根据所述第j组数据,生成第二压缩指示信息,所述第二压缩指示信息包括所述M组数据中每组数据的组标识和所述M组数据中每组数据的组标识对应的指示信息,所述M组数据中的每组数据的组标识对应的指示信息用于表示是否携带有效载荷,所述第j组数据的组标识对应的指示信息用于表示所述第j组数据未携带有效载荷;
根据所述第一压缩指示信息和所述第二压缩指示信息,对所述N组数据中携带有效载荷的k1组数据和所述M组数据中携带有效载荷的k2组数据进行封装,生成所述报文,所述报文包括第一载荷、第二载荷和频域数据的数量,所述频域数据的数量为所述报文包括的载荷数量,所述第一载荷携带所述第一压缩指示信息和所述k1组数据,所述第二载荷携带所述第二压缩指示信息和所述k2组数据,所述指示信息包括所述第一压缩指示信息和所述第二压缩指示信息,所述k1为大于或等于0的整数,所述k2为大于或等于0的整数。
结合上述第三方面的第十一种可能的实现方式,还提供了第三方面的第十二种可能的实现方式,所述第一压缩指示信息为N比特的位图,所述N比特的位图的第i比特在所述N比特的位图中的位置为所述第i组数据的组标识,所述第i比特的数值为所述第i组数据的组标识对应的指示信息;
所述第二压缩指示信息为M比特的位图,所述M比特的位图的第j比特在所述M比特的位图中的位置为所述第j组数据的组标识,所述第j比特的数值为所述第j组数据的组标识对应的指示信息。
第四方面,提供了一种无线数据解压缩装置,包括:
接收单元,用于接收报文,所述报文为根据第一频域数据生成的报文,
所述第一频域数据包括N组数据,N为大于或等于1的整数,所述报文未携带第i组数据,所述第i组数据未携带有效载荷,所述第i组数据是所述N组数据中的一个组数据,所述报文包括指示信息,所述指示信息用于表示所述第i组数据未携带有效载荷;
解压缩单元,用于根据所述报文包括的所述指示信息,对所述报文进行解压缩,获得解压缩后的第一频域数据,所述解压缩后的第一频域数据包括所述第i组数据。
在第四方面的第一种可能的实现方式中,所述报文包括第一压缩指示信息和所述N组数据中携带有效载荷的k1组数据,所述第一压缩指示信息为所述指示信息,所述第一压缩指示信息包括所述N组数据中的每组数据的组标识和所述组标识对应的指示信息,所述组标识对应的指示信息用于表示所述组标识对应的组是否携带有效载荷,所述第i组数据的组标识对应的指示信息用于表示所述第i组数据未携带有效载荷,所述k1为大于或等于0的整数;
所述解压缩单元具体用于:
根据所述报文包括的所述第一压缩指示信息,从所述报文的载荷中获取所述k1组数据;
根据所述第一压缩指示信息包括的所述第i组数据的组标识对应的指示信息,还原所述第i组数据;
根据所述第i组数据的组标识和所述k1组数据中每组数据的组标识,对所述N组数据进行重组,获得解压缩后的第一频域数据。
结合上述第四方面的第一种可能的实现方式,还提供了第四方面的第二种可能的实现方式,所述第一压缩指示信息为N比特的位图,所述N比特的位图的第i比特在所述N比特的位图中的位置为所述第i组数据的组标识,所述第i比特的数值为所述第i组数据的组标识对应的指示信息。
结合上述第四方面,还提供了第四方面的第三种可能的实现方式,所述报文包括第二压缩指示信息和所述N组数据中携带有效载荷的k1组数据,所述第二压缩指示信息为所述指示信息,所述第二压缩指示信息用于指示所述N
组数据中携带有效载荷的组标识,所述第二压缩指示信息包括所述k1组数据中的每组数据的组标识,所述k1为大于或等于0的整数;
所述解压缩单元具体用于:
根据所述报文包括的所述第二压缩指示信息,从所述报文的载荷中获取所述k1组数据;
根据N的数值和所述k1组数据中的每组数据的组标识,还原所述第i组数据;
根据所述第i组数据的组标识和所述k1组数据中每组数据的组标识,对所述N组数据进行重组,获得解压缩后的第一频域数据。
结合上述第四方面,还提供了第四方面的第四种可能的实现方式,所述报文包括第三压缩指示信息和所述N组数据中携带有效载荷的k1组数据,所述第三压缩指示信息为所述指示信息,所述第三压缩指示信息用于指示所述N组数据中未携带有效载荷的组标识,所述第三压缩指示信息包括所述第i组数据的组标识,所述k1为大于或等于0的整数;
所述解压缩单元具体用于:
根据所述第三压缩指示信息包括的所述第i组数据的组标识,还原所述第i组数据;
根据所述第i组数据的组标识和所述k1组数据中每组数据的组标识,对所述N组数据进行重组,获得解压缩后的第一频域数据。
结合上述第四方面、第四方面的第一种可能的实现方式、第四方面的第二种可能的实现方式、第四方面的第三种可能的实现方式或第四方面的第四种可能的实现方式,还提供了第四方面的第五种可能的实现方式,所述无线数据解压缩装置还包括:
获得单元,用于对所述解压缩后的第一频域数据进行反向离散傅里叶变换,获得第一时域数据;
发送单元,用于向第一设备或第二设备发送所述第一时域数据,所述第一设备是能够实现数字基带处理功能的设备,所述第二设备是能够实现射频
功能的设备。
结合上述第四方面,还提供了第四方面的第六种可能的实现方式,所述报文还包括第二频域数据,所述第二频域数据包括M组数据,所述报文未携带第j组数据,所述第j组数据未携带有效载荷,所述第j组数据是所述M组数据中的一个组数据,M为大于或等于1的整数,所述指示信息还用于表示所述第j组数据未携带有效载荷,所述解压缩单元还用于:
根据所述报文包括的所述指示信息,对所述报文进行解压缩,获得解压缩后的第二频域数据,所述解压缩后的第二频域数据包括所述第j组数据。
结合上述第四方面的第六种可能的实现方式,还提供了第四方面的第七种可能的实现方式,所述报文包括第一载荷、第二载荷和频域数据的数量,所述频域数据的数量为所述报文包括的载荷数量,所述第一载荷包括第一压缩指示信息和所述N组数据中携带有效载荷的k1组数据,所述第一压缩指示信息包括所述N组数据中的每组数据的组标识和所述N组数据中的每组数据的组标识对应的指示信息,所述N组数据中的每组数据的组标识对应的指示信息用于表示是否携带有效载荷,所述第i组数据的组标识对应的指示信息用于表示所述第i组数据未携带有效载荷,所述第二载荷包括第二压缩指示信息和所述M组数据中携带有效载荷的k2组数据,所述第二压缩指示信息包括所述M组数据中每组数据的组标识和所述M组数据中每组数据的组标识对应的指示信息,所述M组数据中的每组数据的组标识对应的指示信息用于表示是否携带有效载荷,所述第j组数据的组标识对应的指示信息用于表示所述第j组数据未携带有效载荷,所述第二频域数据包括所述M组数据,M为大于或等于1的整数,所述指示信息包括所述第二压缩指示信息和所述第一压缩指示信息,所述k1和所述k2均为大于或等于0的整数;
所述解压缩单元具体用于:
根据所述报文包括的所述第二压缩指示信息,从所述报文的第二载荷中获取所述k2组数据;
根据所述第j组数据的组标识对应的指示信息,还原所述第j组数据;
根据所述第j组数据的组标识和所述k2组数据中的每组数据的组标识,对所述M组数据进行重组,获得解压缩后的第二频域数据。
结合上述第四方面的第七种可能的实现方式,还提供了第四方面的第八种可能的实现方式,所述第一压缩指示信息为N比特的位图,所述N比特的位图的第i比特在所述N比特的位图中的位置为所述第i组数据的组标识,所述第i比特的数值为所述第i组数据的组标识对应的指示信息;
所述第二压缩指示信息为M比特的位图,所述M比特的位图的第j比特在所述M比特的位图中的位置为所述第j组数据的组标识,所述第j比特的数值为所述第j组数据的组标识对应的指示信息。
第五方面,提供一种用于传输无线数据的系统,包括无线数据压缩装置和无线数据解压缩装置,其中所述无线数据压缩装置为上述第三方面或第三方面的任意一种可能的实现方式提供的无线数据压缩装置;所述无线数据解压缩装置为上述第四方面或第四方面的任意一种可能的实现方式提供的无线数据解压缩装置。
通过上述方案,本发明实施例提供的无线数据压缩装置在确定未携带有效载荷的组数据,比如第i组数据未携带有效载荷,所述无线数据压缩装置在根据第一频域数据生成报文时,不会将未携带有效载荷的组数据添加至所述报文中,即所述无线数据压缩装置所获得的所述报文不包括所述第i组数据。所述无线数据压缩装置发送所述报文,所述报文包括指示信息,所述指示信息用于指示所述第i组数据未携带有效载荷。所述无线数据解压缩装置接收到所述报文后,根据所述报文包括的所述指示信息,对所述报文进行解压缩,获得解压缩后的第一频域数据,所述解压缩后的第一频域数据包括所述第i组数据。这样,无线数据压缩装置无需对未携带有效载荷的组数据进行传输,未携带有效载荷的组数据无需占用相应的带宽,有助于降低带宽的需求。
图1(a)为一种用于传输无线数据的网络场景示意图。
图1(b)为一种以资源网格形式表示的子载波的示意图。
图2为本发明实施例一提供的一种用于传输无线数据的网络场景示意图。
图3(a)为本发明实施例一提供的无线数据压缩装置的示意图。
图3(b)为本发明实施例一提供的无线数据压缩装置的示意图。
图3(c)为本发明实施例一提供的无线数据压缩装置的示意图。
图4(a)为本发明实施例一提供的无线数据解压缩装置的示意图。
图4(b)为本发明实施例一提供的无线数据解压缩装置的示意图。
图5为本发明实施例一提供的无线数据传输方法的流程图。
图6为本发明实施例一提供的无线数据传输方法的流程图。
图7(a)为本发明实施例提供的N比特位图的示意图。
图7(b)为本发明实施例提供的第二压缩指示信息的示意图。
图7(c)本发明实施例提供的一种报文的格式示意图。
图7(d)本发明实施例提供的另一种报文的格式示意图。
图8为本发明实施例一提供的无线数据传输方法的流程图。
图9为本发明实施例二提供的一种用于传输无线数据的网络场景示意图。
图10(a)为本发明实施例二提供的无线数据压缩装置的示意图。
图10(b)为本发明实施例二提供的无线数据压缩装置的示意图。
图10(c)为本发明实施例二提供的无线数据压缩装置的示意图。
图11(a)为本发明实施例二提供的无线数据解压缩装置的示意图。
图11(b)为本发明实施例二提供的无线数据解压缩装置的示意图。
图12为本发明实施例二提供的无线数据传输方法的流程图。
图13为本发明实施例二提供的无线数据传输方法的流程图。
图14为本发明实施例提供的用于传输无线数据的系统的示意图。
为使本发明实施例的目的、技术方案和优点更加清楚,下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚地描述,显然,
所描述的实施例是本发明一部分实施例。
图1(a)为一种用于传输无线数据的网络场景示意图。图1(a)所示的网络包括演进型分组核心网(evolved packet core,EPC)、基带单元(baseband unit,BBU)10、射频拉远单元(remote radio unit,RRU)13和连接RRU 13的天线。图1(a)所示的网络中,BBU 10接收通过EPC传输的数据,比如Internet数据。BBU 10对接收到的数据进行基带处理,获得频域数据。所述频域数据可以是3GPP TS36.211标准中以资源网格(英文名称为resource grid)表示的子载波,如图1(b)所示。图1(b)所示的resource grid包括由7个连续周期组成的一个资源块(英文名称为resource block),每个资源块的一个周期包含频域连续的12个资源单元(英文名称为resource element)。每个resource element对应一个子载波。换句话说,图1(b)所示的resource block包含7列,每列表示一个resource block的一个周期。每个周期的resource block包含12个resource element,即图1(b)中的最小单元格表示一个resource element。所述一个resource element中可携带一个以复数形式表示的子载波。若频域连续的多个子载波为0,数值为0的子载波仍然会占据一个resource element,且该resource element的数值为0。BBU 10将如图1(b)所示的resource grid进行反向离散傅里叶变换(英文全称为Inverse discrete fourier transform,简称为IDFT),生成时域数据。BBU 10会将时域数据进行通用公共无线电接口(英文全称Common Public Radio Interface,简称CPRI)封装,获得CPRI帧。BBU 10通过设置于BBU 10的CPRI,向RRU 13发送CPRI帧。BBU 10和RRU 13之间的传输采用CPRI传输,会需要大量的带宽,原因在于即使在频域上仅有少量的子载波传输有效载荷,频域上未携带有效载荷的子载波经过IDFT后获得的时域数据,在时域上也被表示为有效数据。即BBU 10和RRU 13之间传输的时域数据并不区分有效载荷和无效载荷,BBU 10和RRU13之间传输的时域数据需要恒定带宽传输,建网成本较高。
针对上述问题,本申请提出了有助于降低传输无线数据所需带宽的解决方法。根据该解决方法,无线数据压缩装置获得第一频域数据,所述第一频
域数据包括N组数据,N为大于或等于1的整数;所述无线数据压缩装置根据门限值和所述N组数据,确定所述N组数据中的第i组数据是否携带有效载荷,所述第i组数据为所述N组数据中的任意一组数据;所述无线数据压缩装置确定所述第i组数据未携带有效载荷;所述无线数据压缩装置根据所述第i组数据,获得报文,所述报文为根据所述第一频域数据生成的报文,所述报文未携带所述第i组数据,所述报文包括指示信息,所述指示信息用于表示所述第i组数据未携带有效载荷;所述无线数据压缩装置向无线数据解压缩装置发送所述报文。
在一种实现方式中,所述无线数据压缩装置可部署于第一设备中,相应地,无线数据解压缩装置可部署于与所述第一设备通信的第二设备中,或者所述无线数据解压缩装置可作为一个独立的设备部署于所述第一设备和所述第二设备间,或者所述无线数据解压缩装置可部署于所述第一设备和所述第二设备间且与所述第二设备的设备通信。所述第一设备是能够实现数字基带处理功能的设备,比如BBU或能够实现无线设备控制(英文全称为Radio Equipment Control,简称为REC)功能的装置。第二设备是能够实现射频功能的设备,比如RRU或能够实现无线设备(英文全称为Radio Equipment,简称为RE)功能的装置。
在另一种实现方式中,所述无线数据压缩装置可部署于第二设备中,相应地,无线数据解压缩装置可部署在与所述第二设备通信的第一设备中,或者所述无线数据解压缩装置可作为一个独立的设备部署于所述第二设备和所述第一设备间,或者所述无线数据解压缩装置可部署于所述第二设备和所述第一设备间且与所述第一设备的设备通信。所述第一设备是能够实现数字基带处理功能的设备,比如BBU或能够实现REC功能的装置。所述第二设备是能够实现射频功能的设备,比如RRU或能够实现RE功能的装置。
实施例一
图2为本发明实施例一提供的一种用于传输无线数据的网络场景示意图。图2所示的网络可用于传输无线数据。图2所示的网络中,第一设备20能够
与EPC中的设备(图2中未示出)进行通信。第一设备20与汇聚侧压缩设备21通信。汇聚侧压缩设备21与接入侧压缩设备22通信,例如汇聚侧压缩设备21可以通过分组网络与接入侧压缩设备22通信,汇聚侧压缩设备21也可以通过光纤与接入侧压缩设备22通信。汇聚侧压缩设备21包括第一CPRI210、离散傅里叶变换(英文全称为discrete Fourier transform,简称为DFT)模块211、无线数据压缩装置212、第一接口213、无线数据解压缩装置214和IDFT模块215。接入侧压缩设备22包括第二CPRI220、第二DFT模块225、无线数据压缩装置224、第二接口223、无线数据解压缩装置222和第一IDFT模块221。其中,第一CPRI210可以与第二CPRI220相同,第一接口213可以与第二接口223相同,第一DFT模块211可以与第二DFT模块225相同,第二IDFT模块215可以与第一IDFT模块221相同,无线数据压缩装置212可以与无线数据压缩装置224相同,无线数据解压缩装置214可以与无线数据解压缩装置222相同。
在一种实现方式中,第一设备20经汇聚测压缩设备21的第一CPRI210发送时域数据到第一DFT模块211。第一DFT模块211对该时域数据执行DFT操作后生成频域数据,所述频域数据包括至少一组数据。第一DFT模块211将生成的频域数据发送给无线数据压缩装置212。无线数据压缩装置212对收到的频域数据压缩后生成报文,该报文不包括所述频域数据中未携带有效载荷的第i组数据,所述报文包括指示信息,所述指示信息用于指示所述第i组数据未携带有效载荷,所述第i组数据为所述至少一组数据中的任意一组数据。无线数据压缩装置212将所述报文经第一接口213发送给第二接口223。接入侧压缩设备22的无线数据解压缩装置222通过第二接口223接收所述报文。无线数据解压缩装置222对所述报文进行解压缩,还原出未携带有效载荷的第i组数据。无线数据解压缩装置222根据所述报文包括的所述至少一组数据中携带有效载荷的组数据和未携带有效载荷的第i组数据,获得解压缩后的频域数据。无线数据解压缩装置222向第一IDFT模块221发送所述解压缩后的频域数据。第一IDFT模块221对所述解压缩后的频域数据执行IDFT操
作后生成时域数据。第一IDFT模块221通过第二CPRI220发送所述时域数据到第二设备23。
在另一种实现方式中,第二设备23可通过接入侧压缩设备22包括的第二CPRI220、第二DFT模块225、无线数据压缩装置224和第二接口223,向汇聚侧压缩设备21的第一接口213发送报文,所述报文不包括未携带有效载荷的组数据,所述报文包括指示信息,所述指示信息用于指示未携带有效载荷的组数据。汇聚侧压缩设备21的无线数据解压缩装置214将通过第一接口213接收到的所述报文进行解压缩,获得解压缩后的频域数据。无线数据解压缩装置214通过第二IDFT模块215和第一CPRI接口,向第一设备20发送与所述解压缩后的频域数据对应的时域数据。
图2所示的网络场景中,第一设备20和第二设备23间的通信可以分为下行方向和上行方向。一种实现方式中,所述下行方向为第一设备20经汇聚侧压缩设备21和接入侧压缩设备22,向第二设备23发送数据的方向,相应地,所述上行方向为第二设备23经接入侧压缩设备22和汇聚侧压缩设备21,向第一设备20发送数据的方向。另一种实现方式中,所述下行方向为第二设备23经接入侧压缩设备22和汇聚侧压缩设备21,向第一设备20发送数据的方向,相应地,所述上行方向为第一设备20经汇聚侧压缩设备21和接入侧压缩设备22,向第二设备23发送数据的方向。
图2中的汇聚侧压缩设备21和接入侧压缩设备22能够实现第一设备20和第二设备23间的双向通信。如果汇聚侧压缩设备21和接入侧压缩设备22实现第一设备20和第二设备23间的单向通信,则汇聚侧压缩设备21和接入侧压缩设备22可包括图2中的部分结构,比如:如果汇聚侧压缩设备21和接入侧压缩设备22实现第一设备20向第二设备23发送数据或信息,则汇聚侧压缩设备21包括第一CPRI210、第一DFT模块211、无线数据压缩装置212和第一接口213,相应地,接入侧压缩设备22包括第二CPRI220、第二接口223、无线数据解压缩装置222和第一IDFT模块221。如果接入侧压缩设备22和汇聚侧压缩设备21实现第二设备23向第一设备20发送数据或信息,则
接入侧压缩设备22包括第二CPRI220、第二DFT模块225、无线数据压缩装置224和第二接口223,相应地,汇聚侧压缩设备21包括第一CPRI210、第一接口213、无线数据解压缩装置214和第二IDFT模块215。
举例说明,第一DFT模块211可以是具有DFT功能的电路、集成电路、现场可编辑门阵列(英文全称为field programmable gate array,简称为FPGA)、中央处理器(英文全称为central processing unit,简称为CPU)、能够实现DFT的软件或代码。第二DFT模块225可以是具有DFT功能的电路、集成电路、FPGA、CPU、能够实现DFT的软件或代码。第二IDFT模块215可以是具有IDFT功能的电路、集成电路、FPGA、CPU、能够实现IDFT的软件或代码。第一IDFT模块221可以是具有IDFT功能的电路、集成电路、FPGA、CPU、能够实现IDFT的软件或代码。
图3(a)为本发明实施例一提供的无线数据压缩装置的示意图。图3(a)所示的无线数据压缩装置可以是图2所示的网络中的任意一个无线数据压缩装置。图3(a)所示的无线数据压缩装置包括:处理器301、存储器302、通信接口303和通信总线304。处理器301、存储器302和通信接口303通过通信总线304通信。处理器301可以是中央处理器(英文全称为central processing unit,简称为CPU)、网络处理器(英文全称为network processor,简称为NP)或其他集成电路。存储器302可用于存储程序或代码。可选地,存储器302还可用于存储指示信息,比如:第一压缩指示信息和第二压缩指示信息等本发明实施例提及的压缩指示信息中的一个或多个,在此不再逐一举例说明。
处理器301根据从存储器302中读取的程序所包括的可执行指令,执行如下操作。
处理器301通过通信接口303获得第一频域数据。其中,所述第一频域数据包括N组数据,N为大于或等于1的整数。所述N组数据中的每组数据包括L1个数据,所述L1个数据中的每个数据对应一个子载波,L1为大于或等于1的整数。L1的数值可以为12,还可为其他数值,在此不再举例说明。
处理器301根据门限值和所述N组数据中的第i组数据,确定所述第i组数据是否携带有效载荷,所述第i组数据为所述N组数据中的任意一组数据。其中,i的取值为大于0,且小于或等于N的整数。
举例说明,处理器301根据门限值和所述N组数据中的第i组数据,确定所述第i组数据是否携带有效载荷的方法可以有以下两种方式。处理器301可根据图6对应的实施例中的方法,确定所述门限值,在此不再对确定所述门限值的方法进行赘述。
方式一,处理器301根据门限值和所述N组数据,确定所述N组数据中的第i组数据是否携带有效载荷包括:处理器301确定所述L1个数据是否包括L2个数值大于所述门限值的数据,所述L2个数值大于所述门限值的数据为L2个数据的每个数据对应的子载波的数值大于所述门限值,所述L2个数据的每个数据对应的子载波的数值为所述L2个数据的每个数据对应的子载波的矢量幅度的数值,L2为大于0、且小于或等于L1的整数。如果处理器301确定所述第i组数据中不包括L2个数值大于所述门限值的数据,则所述处理器301确定所述第i组数据未携带有效载荷。如果处理器301确定所述第i组数据中包括L2个数值大于所述门限值的数据,则所述处理器301确定所述第i组数据携带有效载荷。
方式二,处理器301根据门限值和所述N组数据,确定所述N组数据中的第i组数据是否携带有效载荷包括:处理器301确定所述L1个数据对应的L1个子载波的数值的平均值是否大于所述门限值,所述L1个子载波中任意一个子载波的数值为所述任意一个子载波的矢量幅度的数值。如果处理器301确定所述L1个数据对应的L1个子载波的数值的平均值大于所述门限值,则处理器301确定所述第i组数据携带有效载荷。如果处理器301确定所述L1个数据对应的L1个子载波的数值的平均值小于或等于所述门限值,则处理器301确定所述第i组数据未携带有效载荷。
处理器301确定所述第i组数据未携带有效载荷。其中,处理器301可采用上述两种方式中的任何一种确定所述第i组数据未携带有效载荷。处理器
301可采用上述两种方式中的任何一种,确定所述N组数据中的每组数据是否携带有效载荷。本发明实施例是以第i组数据为例进行的说明。在此不再对确定所述N组数据中的其他组数据是否携带有效载荷的方法进行赘述。
处理器301根据所述第i组数据,获得报文,所述报文为根据所述第一频域数据生成的报文,所述报文未携带所述第i组数据,所述报文包括指示信息,所述指示信息用于表示所述第i组数据未携带有效载荷。
其中,处理器301根据所述第i组数据获得报文的方式可以有以下三种。
方式一,处理器301根据所述第i组数据获得报文包括:处理器301根据所述第i组数据,生成第一压缩指示信息,所述第一压缩指示信息用于指示所述N组数据中携带有效载荷的组数据和未携带有效载荷的组数据,所述第一压缩指示信息包括所述N组数据中的每组数据的组标识和所述组标识对应的指示信息,所述组标识对应的指示信息用于表示所述组标识对应的组是否携带有效载荷,所述第i组数据的组标识对应的指示信息用于表示所述第i组数据未携带有效载荷,所述第一压缩指示信息为所述指示信息;处理器301根据所述第一压缩指示信息,对所述N组数据中携带有效载荷的k1组数据进行封装,生成所述报文,所述报文包括所述第一压缩指示信息和所述k1组数据,所述k1为大于或等于0的整数。其中,所述第一压缩指示信息为N比特的位图,所述N比特的位图的第i比特在所述N比特的位图中的位置为所述第i组数据的组标识,所述第i比特的数值为所述第i组数据的组标识对应的指示信息。
方式二,处理器301根据所述第i组数据获得报文包括:处理器301根据所述第i组数据,生成第二压缩指示信息,所述第二压缩指示信息用于指示所述N组数据中携带有效载荷的组标识,所述第二压缩指示信息包括k1组数据中的每组数据的组标识,所述k1组数据为所述N组数据中携带有效载荷的组数据,所述k1为大于或等于0的整数,所述第二压缩指示信息为所述指示信息;处理器301根据所述第二压缩指示信息,对所述k1组数据进行封装,生成所述报文,所述报文包括所述第二压缩指示信息和所述k1组数据。这样,
可降低指示信息在存储器302中所占用的存储空间,有利于提高处理速度和效率。
方式三,处理器301根据所述第i组数据获得报文包括:处理器301根据所述第i组数据,生成第三压缩指示信息,所述第三压缩指示信息用于指示所述N组数据中未携带有效载荷的组标识,所述第三压缩指示信息包括所述第i组数据的组标识,所述第三压缩指示信息为所述指示信息;处理器301根据所述第三压缩指示信息,对所述N组数据中携带有效载荷的k1组数据进行封装,生成所述报文,所述报文包括所述第三压缩指示信息和所述k1组数据,所述k1为大于或等于0的整数。这样,可降低指示信息在存储器302中所占用的存储空间,有利于提高处理速度和效率。
处理器301通过通信接口303,向无线数据解压缩装置发送所述报文。其中,图3(a)所示的无线数据压缩装置为图2所示网络中的无线数据压缩装置212,相应地,所述无线数据解压缩装置为图2所示网络中的无线数据解压缩装置222。图3(a)所示的无线数据压缩装置为图2所示的网络中的无线数据压缩装置224,相应地,所示无线数据解压缩装置为图2所示的网络中的无线数据解压缩装置214。举例说明,处理器301可通过通信接口303,通过分组网络,向无线数据解压缩装置发送所述报文;处理器301也可以通过通信接口303和光纤,向无线数据解压缩装置发送所述报文。所述分组网络可以是能够采用报文的方式传输数据和/或信息的网络。
本发明实施例提供的无线数据压缩装置中,处理器301可以根据门限值,确定N组数据中每组数据是否携带有效载荷,以确定没有携带有效载荷的组数据,比如所述第i组数据。处理器301所获得的报文包括携带有效载荷的组数据而不包括未携带有效载荷的组数据,并且处理器301向无线数据解压缩装置发送携带第一频域数据的报文,有助于降低带宽需求和建网成本。
可选地,处理器301还用于获得与所述第一频域数据对应的逻辑管道的标识,所述逻辑管道的标识用于标识所述无线数据解压缩装置与所述无线数据压缩装置间的逻辑管道。所述逻辑管道可以是所述无线数据压缩装置与所
述无线数据解压缩装置间的逻辑链路,或所述无线数据压缩装置与所述无线数据解压缩装置间的隧道(英文名称为tunnel)。所述逻辑管道的标识为所述无线数据解压缩装置所属的虚拟局域网(英文全称为virtual local area network,简称为VLAN)的标识、所述无线数据解压缩装置被分配的多协议标签交换(英文全称为Multiprotocol Label Switching,简称为MPLS)标签或所述无线数据解压缩装置所属的虚拟扩展局域网(英文全称为Virtual Extensible LAN,简称为VXLAN)的虚拟网络标识(英文全称为virtual network identifier,简称为VNID)。举例说明,处理器301可将所述逻辑管道的标识添加至所述报文的报文头。
可选地,处理器301还可用于接收第一时域数据,所述第一时域数据是从来自第一设备20或第二设备23的第一天线载波数据。处理器301还可对所述第一时域数据进行DFT,获得所述第一频域数据。
本发明提供的另一种实施例中,图3(a)所示的无线数据压缩装置能够对至少两路频域数据进行处理,即图3(a)所示的无线数据压缩装置中的处理器301除了可以根据读取的程序所包括的可执行指令,执行前述对第一频域数据的操作之外,还可从存储器302中读取的程序所包括的可执行指令,执行如下操作。
处理器301获得第二频域数据,所述第二频域数据包括M组数据,M为大于或等于1的整数。其中,所述M组数据中的每组数据包括L3个数据,所述L3个数据中的每个数据对应一个子载波,L3为大于或等于1的整数。L3的数值可以为12,还可为其他数值,在此不再举例说明。
处理器301根据门限值和所述M组数据中的第j组数据,确定所述第j组数据是否携带有效载荷,所述第j组数据为所述M组数据中的任意一组数据。处理器301确定所述第j组数据是否携带有效载荷的方法与确定所述第i组数据是否携带有效载荷的方法相同。
方式一,处理器301根据门限值和所述M组数据中的第j组数据,确定所述第j组数据是否携带有效载荷包括:处理器301确定所述L3个数据是否
包括L4个数值大于所述门限值的数据,所述L4个数值大于所述门限值的数据为L4个数据的每个数据对应的子载波的数值大于所述门限值,所述L4个数据的每个数据对应的子载波的数值为所述L4个数据的每个数据对应的子载波的矢量幅度的数值,L4为大于0且小于或等于L3的整数。如果处理器301确定所述第j组数据中不包括L4个数值大于所述门限值的数据,则所述处理器301确定所述第j组数据未携带有效载荷。如果处理器301确定所述第j组数据中包括L4个数值大于所述门限值的数据,则所述处理器301确定所述第j组数据携带有效载荷。
方式二,处理器301根据门限值和所述M组数据中的第j组数据,确定所述第j组数据是否携带有效载荷包括:处理器301确定所述L3个数据对应的L3个子载波的数值的平均值是否大于所述预设的门限值,所述L3个子载波中任意一个子载波的数值为所述任意一个子载波的矢量幅度的数值。如果处理器301确定所述第j组数据包括的L3个数据对应的L3个子载波的数值的平均值小于或等于所述门限值,则处理器301确定所述第j组数据未携带有效载荷。如果处理器301确定所述第j组数据包括的L3个数据对应的L3个子载波的数值的平均值大于所述门限值,则处理器301确定所述第j组数据携带有效载荷。
相应地,处理器301获得报文的方式可以有以下三种。
方式一,处理器301根据所述第i组数据获得报文包括:处理器301根据所述第i组数据,生成第一压缩指示信息,所述第一压缩指示信息用于指示所述N组数据中携带有效载荷的组数据和未携带有效载荷的组数据,所述第一压缩指示信息包括所述N组数据中的每组数据的组标识和所述N组数据中的每组数据的组标识对应的指示信息,所述N组数据中的每组数据的组标识对应的指示信息用于表示是否携带有效载荷,所述第i组数据的组标识对应的指示信息用于表示所述第i组数据未携带有效载荷;处理器301根据所述第j组数据,生成第二压缩指示信息,所述第二压缩指示信息用于指示所述M组数据中携带有效载荷的组数据和未携带有效载荷的组数据,所述第二压缩指示
信息包括所述M组数据中每组数据的组标识和所述M组数据中每组数据的组标识对应的指示信息,所述M组数据中的每组数据的组标识对应的指示信息用于表示是否携带有效载荷,所述第j组数据的组标识对应的指示信息用于表示所述第j组数据未携带有效载荷;处理器301根据所述第一压缩指示信息和所述第二压缩指示信息,对所述N组数据中携带有效载荷的k1组数据和所述M组数据中携带有效载荷的k2组数据进行封装,生成所述报文,所述报文包括第一载荷、第二载荷和频域数据的数量,所述频域数据的数量为所述报文包括的载荷数量,所述第一载荷携带所述第一压缩指示信息和所述k1组数据,所述第二载荷携带所述第二压缩指示信息和所述k2组数据,所述指示信息包括所述第一压缩指示信息和所述第二压缩指示信息,所述k1为大于或等于0的整数,所述k2为大于或等于0的整数。
可选地,方式一中,所述第一压缩指示信息为N比特的位图,所述N比特的位图的第i比特在所述N比特的位图中的位置为所述第i组数据的组标识,所述第i比特的数值为所述第i组数据的组标识对应的指示信息;所述第二压缩指示信息为M比特的位图,所述M比特的位图的第j比特在所述M比特的位图中的位置为所述第j组数据的组标识,所述第j比特的数值为所述第j组数据的组标识对应的指示信息。
方式二,处理器301根据所述第i组数据获得报文包括:处理器301根据所述第i组数据,生成第三压缩指示信息,所述第三压缩指示信息用于指示所述N组数据中携带有效载荷的组标识,所述第三压缩指示信息包括k1组数据中的每组数据的组标识,所述k1组数据为所述N组数据中携带有效载荷的组数据,所述k1为大于或等于0的整数;处理器301根据所述第j组数据,生成第四压缩指示信息,所述第四压缩指示信息用于指示所述M组数据中携带有效载荷的组标识,所述第四压缩指示信息包括k2组数据中的每组数据的组标识,所述k2组数据为所述M组数据中携带有效载荷的组数据,所述k2为大于或等于0的整数;处理器301根据所述第三压缩指示信息和所述第四压缩指示信息,对所述k1组数据和所述k2组数据进行封装,生成所述报文,所述
报文的载荷携带所述第三压缩指示信息、所述第四压缩指示信息、所述k1组数据和所述k2组数据。
方式三,处理器301根据所述第i组数据获得报文包括:处理器301根据所述第i组数据,生成第五压缩指示信息,所述第五压缩指示信息用于指示所述N组数据中未携带有效载荷的组标识,所述第五压缩指示信息包括所述第i组数据的组标识;处理器301根据所述第j组数据,生成第六压缩指示信息,所述第六压缩指示信息用于指示所述M组数据中未携带有效载荷的组标识,所述第六压缩指示信息包括所述第j组数据的组标识;处理器301根据所述第五压缩指示信息和所述第六压缩指示信息,对所述k1组数据和所述k2组数据进行封装,生成所述报文,所述报文的载荷携带所述第五压缩指示信息、所述第六压缩指示信息、所述k1组数据和所述k2组数据。
本发明提供的另一种实施例中,所述无线数据压缩装置通过发送所述报文,实现所述第一频域数据和所述第二频域数据的传输,有助于提高数据传输效率。
图3(b)为本发明实施例一提供的无线数据压缩装置的示意图。图3(b)所示的无线数据压缩装置包括:第一获得单元305、第一确定单元306、第二获得单元307和发送单元308。可选地,图3(b)所示的无线数据压缩装置还包括:第三获得单元310和第二确定单元311。
图3(b)所示的无线数据压缩装置与图3(a)所示的无线数据压缩装置可以是同一个装置,例如为图2所示网络中的无线数据压缩装置212或无线数据压缩装置224。可以认为,图3(a)从物理的角度显示了一个无线数据压缩装置包括的内容,而图3(b)从逻辑的角度显示了一个无线数据压缩装置包括的内容。图3(b)中的发送单元308的发送功能可以由图3(a)中的处理器301和通信接口303协作完成,通信接口303可以包括至少一个物理接口。图3(b)中的第一获得单元305、第一确定单元306和第二获得单元307可以由图3(a)中的处理器301根据存储器302存储的可执行指令来实现,处理器301可以包括至少一个物理处理器。可选地,图3(b)中的第三
获得单元310和第二确定单元311可由图3(a)中的处理器301根据存储器302存储的可执行指令来实现。图3(b)和图3(a)中重复的内容,在图3(b)对应的实施例中不再赘述。
所述第一获得单元305用于获得第一频域数据,所述第一频域数据包括N组数据,N为大于或等于1的整数。
所述第一确定单元306用于根据门限值和所述N组数据,确定所述N组数据中的第i组数据是否携带有效载荷,所述第i组数据为所述N组数据中的任意一组数据。所述第一确定单元306可根据图6对应的实施例中的方法,确定所述门限值,在此不再对确定所述门限值的方法进行赘述。
所述第一确定单元306用于确定所述第i组数据未携带有效载荷。
所述第二获得单元307用于根据所述第i组数据,获得报文,所述报文为根据所述第一频域数据生成的报文,所述报文未携带所述第i组数据,所述报文包括指示信息,所述指示信息用于表示所述第i组数据未携带有效载荷。
所述发送单元308用于向无线数据解压缩装置发送所述报文。所述无线数据解压缩装置与图3(a)对应的实施例提及的无线数据解压缩装置相同,在此不再赘述。
举例说明,所述N组数据中的每组数据包括L1个数据,所述L1个数据中的每个数据对应一个子载波,L1为大于或等于1的整数,所述第一确定单元306具体用于确定所述L1个数据是否包括L2个数值大于所述门限值的数据,所述L2个数值大于所述门限值的数据为L2个数据的每个数据对应的子载波的数值大于所述门限值,所述L2个数据的每个数据对应的子载波的数值为所述L2个数据的每个数据对应的子载波的矢量幅度的数值,L2小于或等于L1。
举例说明,所述N组数据中的每组数据包括L1个数据,所述L1个数据中的每个数据对应一个子载波,L1为大于或等于1的整数,所述第一确定单元306具体用于确定所述L1个数据对应的L1个子载波的数值的平均值是否大于所述门限值,所述L1个子载波中任意一个子载波的数值为所述任意一个子载波的矢量幅度的数值。
举例说明,所述第二获得单元307具体用于根据所述第i组数据,生成第一压缩指示信息,所述第一压缩指示信息用于指示所述N组数据中携带有效载荷的组数据和未携带有效载荷的组数据,所述第一压缩指示信息包括所述N组数据中的每组数据的组标识和所述组标识对应的指示信息,所述组标识对应的指示信息用于表示所述组标识对应的组是否携带有效载荷,所述第i组数据的组标识对应的指示信息用于表示所述第i组数据未携带有效载荷,所述第一压缩指示信息为所述指示信息;所述第二获得单元307具体用于根据所述第一压缩指示信息,对所述N组数据中携带有效载荷的k1组数据进行封装,生成所述报文,所述报文包括所述第一压缩指示信息和所述k1组数据,所述k1为大于或等于0的整数。其中,所述第一压缩指示信息为N比特的位图,所述N比特的位图的第i比特在所述N比特的位图中的位置为所述第i组数据的组标识,所述第i比特的数值为所述第i组数据的组标识对应的指示信息。
举例说明,所述第二获得单元307具体用于根据所述第i组数据,生成第二压缩指示信息,所述第二压缩指示信息用于指示所述N组数据中携带有效载荷的组标识,所述第二压缩指示信息包括k1组数据中的每组数据的组标识,所述k1组数据为所述N组数据中携带有效载荷的组数据,所述k1为大于或等于0的整数,所述第二压缩指示信息为所述指示信息;所述第二获得单元307具体用于根据所述第二压缩指示信息,对所述k1组数据进行封装,生成所述报文,所述报文包括所述第二压缩指示信息和所述k1组数据。
举例说明,所述第二获得单元307具体用于根据所述第i组数据,生成第三压缩指示信息,所述第三压缩指示信息用于指示所述N组数据中未携带有效载荷的组标识,所述第三压缩指示信息包括所述第i组数据的组标识,所述第三压缩指示信息为所述指示信息;所述第二获得单元307具体用于根据所述第三压缩指示信息,对所述N组数据中携带有效载荷的k1组数据进行封装,生成所述报文,所述报文包括所述第三压缩指示信息和所述k1组数据,所述k1为大于或等于0的整数。
举例说明,所述报文的报文头携带CPRI指示信息,所述CPRI指示信息
用于指示所述报文的载荷携带有CPRI控制信息,所述报文的载荷还携带所述CPRI控制信息。如果所述无线数据压缩装置与第一设备20通信,则所述CPRI控制信息为所述第一设备20发送的CPRI帧中的控制字信息。如果所述无线数据压缩装置与第二设备23通信,则所述CPRI控制信息为所述第二设备23发送的CPRI帧中的控制字信息。
本发明实施例提供的无线数据压缩装置中,第一确定单元306根据门限值,确定N组数据中每组数据是否携带有效载荷,以确定没有携带有效载荷的组数据,比如所述第i组数据。第二获得单元307所获得的报文仅包括携带有效载荷的组数据。发送单元308以报文的形式,向无线数据解压缩装置发送携带第一频域数据的报文,有助于降低带宽需求和建网成本。
可选地,图3(b)所示的无线数据压缩装置还包括接收单元。所述接收单元的接收功能可以由图3(a)中的处理器301和通信接口303协作完成。所述接收单元用于接收第一时域数据,所述第一时域数据是从第一设备20或第二设备23获得的第一天线载波数据;所述第一获得单元305具体用于对所述第一时域数据进行DFT,获得所述第一频域数据。
本发明提供的另一实施例中,图3(b)所示的无线数据压缩装置可对至少两路频域数据进行处理,即图3(b)所示的无线数据压缩装置可执行前述对第一频域数据的操作之外,图3(b)所示的无线数据压缩装置还可获得第二频域数据,并将所述第二频域数据携带在所述报文中,发送至相应的无线数据解压缩装置。所述第二频域数据包括M组数据。所述M组数据中的每组数据包括L3个数据,所述L3个数据中的每个数据对应一个子载波,L3为大于或等于1的整数。
可选地,所述无线数据压缩装置还可包括所述第三获得单元310和所述第二确定单元311。
所述第三获得单元310用于获得第二频域数据,所述第二频域数据包括M组数据,M为大于或等于1的整数。其中,M和N的取值可以相同,M和N的取值也可以不同,比如M可以是N的整数倍,在此不再进行限定。所述
第二确定单元311用于根据门限值和所述M组数据中的第j组数据,确定所述第j组数据是否携带有效载荷,所述第j组数据为所述M组数据中的任意一组数据。所述第二确定单元311还用于确定所述第j组数据未携带有效载荷。
举例说明,所述第二确定单元311具体用于确定所述L3个数据是否包括L4个数值大于所述门限值的数据,所述L4个数值大于所述门限值的数据为L4个数据的每个数据对应的子载波的数值大于所述门限值,所述L4个数据的每个数据对应的子载波的数值为所述L4个数据的每个数据对应的子载波的矢量幅度的数值,L4小于或等于L3。或者,所述第二确定单元311具体用于确定所述L3个数据对应的L3个子载波的数值的平均值是否大于所述预设的门限值,所述L3个子载波中任意一个子载波的数值为所述任意一个子载波的矢量幅度的数值。
相应地,所述第二获得单元307可根据所述第i组数据和所述第j组数据,获得报文,所述报文未携带所述第i组数据和所述第j组数据。所述第二获得单元307获得所述报文的方法可参见图3(a)所示的处理器301根据所述第i组数据和所述第j组数据获得所述报文的方法。所述第二获得单元307也可采用以下三种方式中的任意一种获得所述报文。
方式一,所述第二获得单元307具体用于根据所述第i组数据,生成第一压缩指示信息,所述第一压缩指示信息用于指示所述N组数据中携带有效载荷的组数据和未携带有效载荷的组数据,所述第一压缩指示信息包括所述N组数据中的每组数据的组标识和所述N组数据中的每组数据的组标识对应的指示信息,所述N组数据中的每组数据的组标识对应的指示信息用于表示是否携带有效载荷,所述第i组数据的组标识对应的指示信息用于表示所述第i组数据未携带有效载荷;所述第二获得单元307具体用于根据所述第j组数据,生成第二压缩指示信息,所述第二压缩指示信息用于指示所述M组数据中携带有效载荷的组数据和未携带有效载荷的组数据,所述第二压缩指示信息包括所述M组数据中每组数据的组标识和所述M组数据中每组数据的组标识对应的指示信息,所述M组数据中的每组数据的组标识对应的指示信息用于表
示是否携带有效载荷,所述第j组数据的组标识对应的指示信息用于表示所述第j组数据未携带有效载荷;所述第二获得单元307具体用于根据所述第一压缩指示信息和所述第二压缩指示信息,对所述N组数据中携带有效载荷的k1组数据和所述M组数据中携带有效载荷的k2组数据进行封装,生成所述报文,所述报文包括第一载荷、第二载荷和频域数据的数量,所述频域数据的数量为所述报文包括的载荷数量,所述第一载荷携带所述第一压缩指示信息和所述k1组数据,所述第二载荷携带所述第二压缩指示信息和所述k2组数据,所述指示信息包括所述第一压缩指示信息和所述第二压缩指示信息,所述k1为大于或等于0的整数,所述k2为大于或等于0的整数。
可选地,所述第一压缩指示信息为N比特的位图,所述N比特的位图的第i比特在所述N比特的位图中的位置为所述第i组数据的组标识,所述第i比特的数值为所述第i组数据的组标识对应的指示信息;所述第二压缩指示信息为M比特的位图,所述M比特的位图的第j比特在所述M比特的位图中的位置为所述第j组数据的组标识,所述第j比特的数值为所述第j组数据的组标识对应的指示信息。
方式二,所述第二获得单元307具体用于根据所述第i组数据,生成第三压缩指示信息,所述第三压缩指示信息用于指示所述N组数据中携带有效载荷的组标识,所述第三压缩指示信息包括k1组数据中的每组数据的组标识,所述k1组数据为所述N组数据中携带有效载荷的组数据,所述k1为大于或等于0的整数;所述第二获得单元307具体用于根据所述第j组数据,生成第四压缩指示信息,所述第四压缩指示信息用于指示所述M组数据中携带有效载荷的组标识,所述第四压缩指示信息包括k2组数据中的每组数据的组标识,所述k2组数据为所述M组数据中携带有效载荷的组数据,所述k2为大于或等于0的整数;所述第二获得单元307具体用于根据所述第三压缩指示信息和所述第四压缩指示信息,对所述k1组数据和所述k2组数据进行封装,生成所述报文,所述报文的载荷携带所述第三压缩指示信息、所述第四压缩指示信息、所述k1组数据和所述k2组数据。
方式三,第二获得单元307具体用于根据所述第i组数据获得报文包括:处理器301根据所述第i组数据,生成第五压缩指示信息,所述第五压缩指示信息用于指示所述N组数据中未携带有效载荷的组标识,所述第五压缩指示信息包括所述第i组数据的组标识;第二获得单元307具体用于根据所述第j组数据,生成第六压缩指示信息,所述第六压缩指示信息用于指示所述M组数据中未携带有效载荷的组标识,所述第六压缩指示信息包括所述第j组数据的组标识;第二获得单元307具体用于根据所述第五压缩指示信息和所述第六压缩指示信息,对所述k1组数据和所述k2组数据进行封装,生成所述报文,所述报文的载荷携带所述第五压缩指示信息、所述第六压缩指示信息、所述k1组数据和所述k2组数据。
可选地,图3(b)所示的无线数据压缩装置还可包括第四获得单元(图3(b)中未示出)。所述第四获得单元可由图3(a)中的处理器301根据存储器302存储的可执行指令来实现。所述第四获得单元用于获得与所述第一频域数据对应的逻辑管道的标识,所述逻辑管道的标识用于标识所述无线数据解压缩装置与所述无线数据压缩装置间的逻辑管道。其中,所述第四获得单元可根据接收携带所述第一时域数据的CPRI帧的物理端口,来获得所述逻辑管道的标识。所述接收携带所述第一时域数据的CPRI帧的物理端口与所述逻辑管道的标识之间存在对应关系。相应地,所述第二获得单元307具体用于将所述逻辑管道的标识添加至所述报文的报文头。所述逻辑管道的标识的具体内容与图3(a)中的逻辑管道的标识的具体内容相同,在此不再赘述。
图3(c)为本发明实施例一提供的无线数据压缩装置的示意图。图3(c)所示的无线数据压缩装置可以是图2所示的网络中的任意一个无线数据压缩装置。图3(c)所示的无线数据压缩装置包括:处理器312、存储器313、通信接口314、通信总线315和判决器316。处理器312、存储器313、通信接口314和判决器316通过通信总线315通信。处理器312可以是CPU、NP或其它集成电路。存储器313可用于存储程序。可选地,存储器313还可用于存储指示信息,比如:第一压缩指示信息和/或第二压缩指示信息等本发明实
施例提及的压缩指示信息中的一个或多个,在此不再逐一举例说明。
图3(c)所示的无线数据压缩装置和图3(a)所示的无线数据压缩装置不同之处在于:图3(c)所示的无线数据压缩装置中实现确定N组数据中是否携带有效载荷的组数据的器件是判决器316,判决器316将判决结果通过通信总线315传输给处理器312。所述判决结果用于指示所述N组数据中携带有效载荷的组数据和/或所述N组数据中未携带有效载荷的组数据。处理器312可根据获得的第一频域数据和所述判决结果获得报文。所述报文包括指示信息,所述指示信息用于表示所述N组数据中的第i组数据未携带有效载荷。处理器312获得所述第一频域数据和所述报文的方式与图3(a)中的处理器301所采用的方式相同,在此不再赘述。
可选地,所述判决器316在获得所述判决结果后,向处理器312输出所述判决结果的同时或之后,还向处理器312输出所述N组数据中携带有效载荷的组数据,比如所述N组数据中的k1组数据。
存储器313、通信总线315和通信接口314可参见图3(a)中的相应内容,在此不再赘述。
图4(a)为本发明实施例一提供的无线数据解压缩装置的示意图。图4(a)所示的无线数据解压缩装置可以是图2所示的网络中的任意一个无线数据解压缩装置。图4(a)所示的无线数据解压缩装置包括:处理器401、存储器402、通信接口403和通信总线404。处理器401、存储器402和通信接口403通过通信总线404通信。处理器401可以是CPU、NP或其它集成电路。存储器402可用于存储程序。
处理器401根据从存储器402中读取的程序所包括的可执行指令,执行如下操作。
处理器401通过通信接口403,用于接收无线数据压缩装置发送的报文,所述报文为根据第一频域数据生成的报文,所述第一频域数据包括N组数据,N为大于或等于1的整数,所述报文未携带第i组数据,所述第i组数据未携带有效载荷,所述第i组数据是所述N组数据中的一个组数据,所述报文包
括指示信息,所述指示信息用于表示所述第i组数据未携带有效载荷。其中,所述无线数据压缩装置可以是图3(a)或图3(b)所示的无线数据压缩装置。
处理器401根据所述报文包括的所述指示信息,对所述报文进行解压缩,获得解压缩后的第一频域数据,所述解压缩后的第一频域数据包括所述第i组数据。其中,处理器401可采用下述三种方式中的任意一种获得所述解压缩后的第一频域数据。
方式一,所述报文包括第一压缩指示信息和所述N组数据中携带有效载荷的k1组数据,所述第一压缩指示信息为所述指示信息,所述第一压缩指示信息用于指示所述N组数据中携带有效载荷的组数据和未携带有效载荷的组数据,所述第一压缩指示信息包括所述N组数据中的每组数据的组标识和所述组标识对应的指示信息,所述组标识对应的指示信息用于表示所述组标识对应的组是否携带有效载荷,所述第i组数据的组标识对应的指示信息用于表示所述第i组数据未携带有效载荷,所述k1为大于或等于0的整数。处理器401根据所述报文包括的所述第一压缩指示信息,从所述报文的载荷中获取所述k1组数据;处理器401根据所述第一压缩指示信息包括的所述第i组数据的组标识对应的指示信息,还原所述第i组数据;处理器401根据所述第i组数据的组标识和所述k1组数据中每组数据的组标识,对所述N组数据进行重组,获得所述解压缩后的第一频域数据。其中,所述第一压缩指示信息为N比特的位图,所述N比特的位图的第i比特在所述N比特的位图中的位置为所述第i组数据的组标识,所述第i比特的数值为所述第i组数据的组标识对应的指示信息。
方式二,所述报文包括第二压缩指示信息和所述N组数据中携带有效载荷的k1组数据,所述第二压缩指示信息为所述指示信息,所述第二压缩指示信息用于指示所述N组数据中携带有效载荷的组标识,所述第二压缩指示信息包括所述k1组数据中的每组数据的组标识,所述k1为大于或等于0的整数。处理器401根据所述报文包括的所述第二压缩指示信息,从所述报文的载荷中获取所述k1组数据;处理器401根据N的数值和所述k1组数据中的每组数
据的组标识,还原所述第i组数据;处理器401根据所述第i组数据的组标识和所述k1组数据中每组数据的组标识,对所述N组数据进行重组,获得所述解压缩后的第一频域数据。
方式三,所述报文的载荷携带第三压缩指示信息和所述N组数据中携带有效载荷的k1组数据,所述第三压缩指示信息用于指示所述N组数据中未携带有效载荷的组标识,所述第三压缩指示信息包括所述第i组数据的组标识,所述k1为大于或等于0的整数。处理器401根据所述第三压缩指示信息包括的所述第i组数据的组标识,还原所述第i组数据;处理器401根据所述第i组数据的组标识和所述k1组数据中每组数据的组标识,对所述N组数据进行重组,获得所述解压缩后的第一频域数据。
本发明实施提供的无线数据解压缩装置中,无线数据解压缩装置接收到的报文携带第一压缩指示信息,所述报文包括所述N组数据中携带有效载荷的组数据,所述N组数据中存在未携带有效载荷的组数据,处理器401能够根据接收到的报文携带的第一指示信息和所述第一频域数据中携带有效载荷的组数据,获得解压缩后的第一频域数据,有助于实现降低带宽需求和建网成本。无线数据解压缩装置接收到报文携带第一压缩指示信息,所述报文不包括所述N组数据中的任意一组数据,即所述N组数据中不存在携带有效载荷的组数据,处理器401能够根据接收到的报文携带的第一指示信息,获得解压缩后的第一频域数据,有助于实现降低带宽需求和建网成本。无线数据解压缩装置接收到的报文携带第二压缩指示信息或第三压缩指示信息,能够取得与无线数据解压缩装置接收到的报文携带第一压缩指示信息相同的效果,在此不再赘述。
可选地,处理器401还对所述解压缩后的第一频域数据进行IDFT,获得第一时域数据;处理器401还通过通信接口403发送所述第一时域数据。举例说明,处理器401还可在获得所述第一时域数据之后,根据所述第一时域数据获得CPRI帧,所述CPRI帧是对所述第一时域数据进行CPRI封装后获得的帧;处理器401还通过通信接口403发送所述CPRI帧。其中,若图4(a)
所示的无线数据解压缩装置为图2所示的网络中的无线数据解压缩装置214,则处理器401还通过通信接口403,向第一设备20发送所述CPRI帧。若图4(a)所示的无线数据解压缩装置为图2所示的网络中的无线数据解压缩装置222,则处理器401还通过通信接口403,向第二设备23发送所述CPRI帧。
在本发明提供的另一种实施例中,所述报文还包括第二频域数据,所述第二频域数据包括M组数据,所述报文未携带第j组数据,所述第j组数据未携带有效载荷,所述第j组数据是所述M组数据中的一个组数据,M为大于或等于1的整数,所述指示信息还用于表示所述第j组数据未携带有效载荷。所述处理器401在对所述报文进行解压缩获得解压缩后的第一频域数据的基础上,还可根据所述报文包括的所述指示信息,对所述报文进行解压缩,获得解压缩后的第二频域数据,所述解压缩后的第二频域数据包括所述第j组数据。
举例说明,处理器401从所述报文中获得所述解压缩后的第二频域数据可采用下述三种方式中的任意一种。
方式一,所述报文包括第一载荷、第二载荷和频域数据的数量,所述频域数据的数量为所述报文包括的载荷数量,所述第一载荷包括第一压缩指示信息和所述N组数据中携带有效载荷的k1组数据,所述第一压缩指示信息用于指示所述N组数据中携带有效载荷的组数据和未携带有效载荷的组数据,所述第一压缩指示信息包括所述N组数据中的每组数据的组标识和所述N组数据中的每组数据的组标识对应的指示信息,所述N组数据中的每组数据的组标识对应的指示信息用于表示是否携带有效载荷,所述第i组数据的组标识对应的指示信息用于表示所述第i组数据未携带有效载荷,所述第二载荷包括第二压缩指示信息和所述M组数据中携带有效载荷的k2组数据,所述第二压缩指示信息用于指示所述M组数据中携带有效载荷的组数据和未携带有效载荷的组数据,所述第二压缩指示信息包括所述M组数据中每组数据的组标识和所述M组数据中每组数据的组标识对应的指示信息,所述M组数据中的每组数据的组标识对应的指示信息用于表示是否携带有效载荷,所述第j组数据
的组标识对应的指示信息用于表示所述第j组数据未携带有效载荷,所述第二频域数据包括所述M组数据,M为大于或等于1的整数,所述指示信息包括所述第二压缩指示信息和所述第一压缩指示信息,所述k1和所述k2均为大于或等于0的整数。处理器401获得解压缩后的第二频域数据包括:处理器401根据所述报文包括的所述第二压缩指示信息,从所述报文的第二载荷中获取所述k2组数据;处理器401根据所述第j组数据的组标识对应的指示信息,还原所述第j组数据;处理器401根据所述第j组数据的组标识和所述k2组数据中的每组数据的组标识,对所述M组数据进行重组,获得解压缩后的第二频域数据。
可选地,方式一中,所述第一压缩指示信息为N比特的位图,所述N比特的位图的第i比特在所述N比特的位图中的位置为所述第i组数据的组标识,所述第i比特的数值为所述第i组数据的组标识对应的指示信息;所述第二压缩指示信息为M比特的位图,所述M比特的位图的第j比特在所述M比特的位图中的位置为所述第j组数据的组标识,所述第j比特的数值为所述第j组数据的组标识对应的指示信息。处理器401获得解压缩后的第一频域数据的方法与图4(a)中处理器401获得解压缩后的第一频域数据的方法相同,在此不再赘述。
方式二,所述报文的报文头包括第一载荷、第二载荷和频域数据的数量,所述频域数据的数量为所述报文包括的载荷数量。所述第一载荷包括第三压缩指示信息和所述N组数据中携带有效载荷的k1组数据。所述第三压缩指示信息用于指示所述N组数据中携带有效载荷的组标识。所述第三压缩指示信息包括k1组数据中的每组数据的组标识。所述第二载荷包括第四压缩指示信息和所述M组数据中携带有效载荷的k2组数据。所述第四压缩指示信息用于指示所述M组数据中携带有效载荷的组标识。所述第四压缩指示信息包括k2组数据中的每组数据的组标识。所述k1和所述k2均为大于或等于0的整数。所述指示信息包括所述第三压缩指示信息和所述第四压缩指示信息。处理器401获得解压缩后的第二频域数据包括:处理器401根据所述报文包括的所述
第四压缩指示信息,从所述报文的第二载荷中获取所述k2组数据;处理器401根据所述k2组数据中的每组数据的组标识和M的数值,还原所述第j组数据;处理器401根据所述第j组数据的组标识和所述k2组数据中的每组数据的组标识,对所述M组数据进行重组,获得所述解压缩后的第二频域数据。处理器401获得解压缩后的第一频域数据的方法与图4(a)中处理器401获得解压缩后的第一频域数据的方法相同,在此不再赘述。
方式三,所述报文的报文头包括第一载荷、第二载荷和频域数据的数量,所述频域数据的数量为所述报文包括的载荷数量。所述第一载荷包括第五压缩指示信息和所述N组数据中携带有效载荷的k1组数据。所述第五压缩指示信息用于指示所述N组数据中未携带有效载荷的组标识,所述第五压缩指示信息包括所述第i组数据的组标识。所述第二载荷包括第六压缩指示信息和所述M组数据中携带有效载荷的k2组数据。所述第六压缩指示信息用于指示所述M组数据中未携带有效载荷的组标识,所述第六压缩指示信息包括所述第j组数据的组标识。所述k1和所述k2均为大于或等于0的整数。所述指示信息包括所述第五压缩指示信息和所述第六压缩指示信息。处理器401获得解压缩后的第二频域数据包括:处理器401根据所述报文包括的所述第六压缩指示信息中的所述第j组数据的组标识,从所述报文的第二载荷中获取所述k2组数据;处理器401根据所述第j组数据的组标识和M的数值,还原所述第j组数据;处理器401根据所述第j组数据的组标识和所述k2组数据中的每组数据的组标识,对所述M组数据进行重组,获得所述解压缩后的第二频域数据。处理器401获得解压缩后的第一频域数据的方法与图4(a)中处理器401获得解压缩后的第一频域数据的方法相同,在此不再赘述。
图4(b)为本发明实施例一提供的无线数据解压缩装置的示意图。图4(b)所示的无线数据解压缩装置包括:接收单元405和解压缩单元406。可选地,图4(b)所示的无线数据解压缩装置还包括:获得单元407和发送单元408。
图4(b)所示的无线数据解压缩装置与图4(a)所示的无线数据解压缩
装置可以是同一个装置,例如为图2所示网络中的无线数据解压缩装置214或无线数据解压缩装置222。可以认为,图4(a)从物理的角度显示了一个无线数据解压缩装置包括的内容,而图4(b)从逻辑的角度显示了一个无线数据解压缩装置包括的内容。图4(b)中的接收单元405的接收功能可以由图4(a)中的处理器401和通信接口403协作完成,通信接口403可以包括至少一个物理接口。图4(b)中的解压缩单元406可以由图4(a)中的处理器401根据存储器402存储的可执行指令来实现,处理器401可以包括至少一个物理处理器。可选地,图4(b)中的获得单元407可由图4(a)中的处理器401根据存储器402存储的可执行指令来实现。图4(b)中的发送单元408的发送功能可以由图4(a)中的处理器401和通信接口403协作完成。图4(b)和图4(a)中重复的内容,在图4(b)对应的实施例中不再赘述。
所述接收单元405用于接收无线数据压缩装置发送的报文,所述报文为根据第一频域数据生成的报文,所述第一频域数据包括N组数据,N为大于或等于1的整数,所述报文未携带第i组数据,所述第i组数据未携带有效载荷,所述第i组数据是所述N组数据中的一个组数据,所述报文包括指示信息,所述指示信息用于表示所述第i组数据未携带有效载荷。
所述解压缩单元406用于根据所述报文包括的所述指示信息,对所述报文进行解压缩,获得解压缩后的第一频域数据,所述解压缩后的第一频域数据包括所述第i组数据。
举例来说,所述报文包括第一压缩指示信息和所述N组数据中携带有效载荷的k1组数据,所述第一压缩指示信息为所述指示信息,所述第一压缩指示信息包括所述N组数据中的每组数据的组标识和所述组标识对应的指示信息,所述组标识对应的指示信息用于表示所述组标识对应的组是否携带有效载荷,所述第i组数据的组标识对应的指示信息用于表示所述第i组数据未携带有效载荷,所述k1为大于或等于0的整数。所述解压缩单元406具体用于根据所述报文包括的所述第一压缩指示信息,从所述报文的载荷中获取所述k1组数据;所述解压缩单元406具体用于根据所述第一压缩指示信息包括的
所述第i组数据的组标识对应的指示信息,还原所述第i组数据;所述解压缩单元406具体用于根据所述第i组数据的组标识和所述k1组数据中每组数据的组标识,对所述N组数据进行重组,获得解压缩后的第一频域数据。
可选地,所述第一压缩指示信息为N比特的位图,所述N比特的位图的第i比特在所述N比特的位图中的位置为所述第i组数据的组标识,所述第i比特的数值为所述第i组数据的组标识对应的指示信息。
举例说明,所述报文包括第二压缩指示信息和所述N组数据中携带有效载荷的k1组数据,所述第二压缩指示信息为所述指示信息,所述第二压缩指示信息用于指示所述N组数据中携带有效载荷的组标识,所述第二压缩指示信息包括所述k1组数据中的每组数据的组标识,所述k1为大于或等于0的整数。所述解压缩单元406具体用于根据所述报文包括的所述第二压缩指示信息,从所述报文的载荷中获取所述k1组数据;所述解压缩单元406具体用于根据N的数值和所述k1组数据中的每组数据的组标识,还原所述第i组数据;所述解压缩单元406具体用于根据所述第i组数据的组标识和所述k1组数据中每组数据的组标识,对所述N组数据进行重组,获得解压缩后的第一频域数据。
举例说明,所述报文包括第三压缩指示信息和所述N组数据中携带有效载荷的k1组数据,所述第三压缩指示信息为所述指示信息,所述第三压缩指示信息用于指示所述N组数据中未携带有效载荷的组标识,所述第三压缩指示信息包括所述第i组数据的组标识,所述k1为大于或等于0的整数。所述解压缩单元406具体用于根据所述第三压缩指示信息包括的所述第i组数据的组标识,还原所述第i组数据;所述解压缩单元406具体用于根据所述第i组数据的组标识和所述k1组数据中每组数据的组标识,对所述N组数据进行重组,获得解压缩后的第一频域数据。
本发明实施例中的解压缩后的第一频域数据可以是和第一频域数据相同的数据,也可以是和第一频域数据不相同的数据。本发明实施例中的解压缩后的第二频域数据可以是和第二频域数据相同的数据,也可以是和第二频域
数据不相同的数据。
本发明实施提供的无线数据解压缩装置中,无线数据解压缩装置接收到的报文携带第一压缩指示信息,所述报文包括所述N组数据中携带有效载荷的组数据,所述N组数据中存在未携带有效载荷的组数据,解压缩单元406能够根据接收到的报文携带的第一指示信息和所述第一频域数据中携带有效载荷的组数据,获得解压缩后的第一频域数据,有助于实现降低带宽需求和建网成本。无线数据解压缩装置接收到报文携带第一压缩指示信息,所述报文不包括所述N组数据中的任意一组数据,即所述N组数据中不存在携带有效载荷的组数据,解压缩单元406能够根据接收到的报文携带的第一指示信息,获得解压缩后的第一频域数据,有助于实现降低带宽需求和建网成本。无线数据解压缩装置接收到的报文携带第二压缩指示信息或第三压缩指示信息,能够取得与无线数据解压缩装置接收到的报文携带第一压缩指示信息相同的效果,在此不再赘述。
可选地,图4(b)所示的无线数据解压缩装置还包括:获得单元407和发送单元408。获得单元407用于对所述第一频域数据进行IDFT,获得第一时域数据。发送单元408可用于向第一设备20或第二设备23发送所述第一时域数据。举例说明,所述获得单元407还用于根据所述第一时域数据,获得CPRI帧,所述CPRI帧是对所述第一时域数据进行CPRI封装后获得的帧。所述发送单元408还用于向第一设备20或第二设备23发送所述CPRI帧。
本发明提供的另一实施例中,所述报文携带了多路频域数据,比如所述第一频域数据和第二频域数据,图4(b)所示的无线数据解压缩装置可对所述报文进行解压缩,获得解压缩后的第一频域数据和解压缩后的第二频域数据。图4(b)所示的无线数据解压缩装置获得所述解压缩后的第一频域数据的方式与上述实施例中的方式相同,在此不再赘述。
可选地,所述报文还包括第二频域数据,所述第二频域数据包括M组数据,所述报文未携带第j组数据,所述第j组数据未携带有效载荷,所述第j组数据是所述M组数据中的一个组数据,M为大于或等于1的整数,所述指
示信息还用于表示所述第j组数据未携带有效载荷,所述解压缩单元406还用于:根据所述报文包括的所述指示信息,对所述报文进行解压缩,获得解压缩后的第二频域数据,所述解压缩后的第二频域数据包括所述第j组数据。
举例说明,所述报文包括第一载荷、第二载荷和频域数据的数量,所述频域数据的数量为所述报文包括的载荷数量,所述第一载荷包括第一压缩指示信息和所述N组数据中携带有效载荷的k1组数据,所述第一压缩指示信息用于指示所述N组数据中携带有效载荷的组数据和未携带有效载荷的组数据,所述第一压缩指示信息包括所述N组数据中的每组数据的组标识和所述N组数据中的每组数据的组标识对应的指示信息,所述N组数据中的每组数据的组标识对应的指示信息用于表示是否携带有效载荷,所述第i组数据的组标识对应的指示信息用于表示所述第i组数据未携带有效载荷,所述第二载荷包括第二压缩指示信息和所述M组数据中携带有效载荷的k2组数据,所述第二压缩指示信息用于指示所述M组数据中携带有效载荷的组数据和未携带有效载荷的组数据,所述第二压缩指示信息包括所述M组数据中每组数据的组标识和所述M组数据中每组数据的组标识对应的指示信息,所述M组数据中的每组数据的组标识对应的指示信息用于表示是否携带有效载荷,所述第j组数据的组标识对应的指示信息用于表示所述第j组数据未携带有效载荷,所述第二频域数据包括所述M组数据,M为大于或等于1的整数,所述指示信息包括所述第二压缩指示信息和所述第一压缩指示信息,所述k1和所述k2均为大于或等于0的整数。所述指示信息包括所述第一压缩指示信息和所述第二压缩指示信息。所述解压缩单元406具体用于根据所述报文包括的所述第二压缩指示信息,从所述报文的第二载荷中获取所述k2组数据;所述解压缩单元406具体用于根据所述第j组数据的组标识对应的指示信息,还原所述第j组数据;所述解压缩单元406具体用于根据所述第j组数据的组标识和所述k2组数据中的每组数据的组标识,对所述M组数据进行重组,获得解压缩后的第二频域数据。
可选地,所述第一压缩指示信息为N比特的位图,所述N比特的位图的
第i比特在所述N比特的位图中的位置为所述第i组数据的组标识,所述第i比特的数值为所述第i组数据的组标识对应的指示信息;所述第二压缩指示信息为M比特的位图,所述M比特的位图的第j比特在所述M比特的位图中的位置为所述第j组数据的组标识,所述第j比特的数值为所述第j组数据的组标识对应的指示信息。
对于所述报文包括第三压缩指示信息和第四压缩指示信息的情况,图4(b)所示的无线数据解压缩装置可采用图4(a)中的方法获得解压缩后的第二频域数据,在此不再赘述。对于所述报文包括第五压缩指示信息和第六压缩指示信息的情况,图4(b)所示的无线数据解压缩装置可采用图4(a)中的方法获得解压缩后的第二频域数据,在此不再赘述。
图5为本发明实施例一提供的无线数据传输方法的流程图。下面结合图2所示的网络结构,对实施例一提供的无线数据传输方法进行详细说明。实施例一提供的无线数据传输方法是以一路天线载波数据为例进行说明。实施例一提供的无线数据传输方法还可以对至少两路天线载波数据进行处理和传输,即对第一时域数据和第二时域数据进行处理和传输,第一时域数据对应一路天线载波数据,第二时域数据对应另一路天线载波数据。在此不再对至少两路天线载波数据进行处理和传输的方法进行举例说明。
501,第一设备20向汇聚侧压缩设备21发送CPRI帧,所述CPRI帧携带第一时域数据。
以20Mhz载波频率的一路天线载波数据为例,该路天线载波数据包括1200个子载波,每个子载波的频率是15000hz,即周期为66.7微秒。第一设备20向汇聚侧压缩设备21发送的CPRI帧中可携带所述第一时域数据,所述时域数据与该路天线载波数据对应。所述第一时域数据可以是时域同相和正交分量(英文全称为in-phase and quadrature components,简称为IQ)数据。
502,第一CPRI210发送所述第一时域数据至第一DFT模块211。
举例说明,第一CPRI210去除所述CPRI帧的封装,获得所述第一时域数据。第一CPRI210向第一DFT模块211发送所述第一时域数据。
503,第一DFT模块211对所述第一时域数据进行DFT,获得第一频域数据。
举例说明,第一DFT模块211对接收到的第一时域数据进行DFT,获得包括N组数据的所述第一频域数据。第一DFT模块211可根据公式(1),对所述第一时域数据进行DFT,获得与x(b)对应的频域数据X(a),X(a)为所述第一频域数据包括的任意一个频域数据。所述第一频域数据包括N组数据,N为大于或等于1的整数。在此不再对DFT的具体流程进行赘述。
上述公式(1)中,a的取值为大于或等于0,且小于或等于(L-1)的整数。b的取值为大于或等于0,且小于或等于(L-1)的整数。L的数值为采样点的数量。以20Mhz载波频率的一路天线载波数据为例,L的取值是2048,N的取值是100,N组数据的每组数据中包括12个频域数据。
504,第一DFT模块211向无线数据压缩装置212发送所述第一频域数据。
505,无线数据压缩装置212根据所述第一频域数据,获得报文。
其中,无线数据压缩装置212根据所述第一频域数据获得所述报文的方法可参见图6对应的实施例提供的方法,在此不再赘述。
506,无线数据压缩装置212通过分组网络,向接入侧压缩设备22发送所述报文。
举例说明,无线数据压缩装置212可通过第一接口213发送所述报文,所述报文经过所述分组网络中的转发设备,发送至接入侧压缩设备22。所述无线数据压缩装置212还可通过其他网络或链路,向接入侧压缩设备22发送所述报文,在此不再逐一举例说明。
507,无线数据解压缩装置222对来自第二接口223的所述报文进行解压缩,获得解压缩后的第一频域数据。
其中,无线数据解压缩装置222根据所述报文获得所述解压缩后的第一频域数据的方法可参见图8对应的实施例提供的方法,在此不再赘述。
508,无线数据解压缩装置222向第一IDFT模块221发送所述解压缩后的第一频域数据。
509,第一IDFT模块221对所述解压缩后的第一频域数据进行IDFT,获得所述第一时域数据。
举例说明,第一IDFT模块221对接收到的解压缩后的第一频域数据进行IDFT,获得所述第一时域数据。第一IDFT模块221可根据公式(2),对所述第一频域数据进行IDFT,获得与X(a)对应的时域数据x(b)。在此不再对IDFT的具体流程进行赘述。
上述公式(1)中,a的取值为大于或等于0,且小于或等于(L-1)的整数。b的取值为大于或等于0,且小于或等于(L-1)的整数。L的数值为采样点的数量。以20Mhz载波频率的一路天线载波数据为例,L的取值是2048。
510,第一IDFT模块221向第二CPRI220发送所述第一时域数据。
511,第二CPRI220向第二设备23发送所述CPRI帧,所述CPRI帧携带第一时域数据。
举例说明,第二CPRI220对所述第一时域数据进行CPRI封装,获得所述CPRI帧。第二CPRI220向第二设备23发送所述CPRI帧。
图2所示的网络中的第二设备23向第一设备20发送数据的方法可参见501至511的方法,在此不再赘述。
本发明实施例一提供的无线数据传输方法中,无线数据压缩装置可对第一频域数据中携带有效载荷的组数据进行封装,获得报文。所述无线数据压缩装置向无线数据解压缩装置发送所述报文。所述无线数据解压缩装置可对所述报文进行解压缩,即还原出未携带有效载荷的组数据,获得所述第一频域数据。所述无线数据压缩装置和所述无线数据解压缩装置通过发送报文的方式,所述报文包括携带有效载荷的组数据,所述报文不包括未携带有效载荷的组数据,实现了第一频域数据的传输,有助于降低带宽需求和建网成本。
图6为本发明实施例一提供的无线数据传输方法的流程图。图6是从无线数据压缩装置的角度,对本发明实施例一提供的无线数据传输方法进行说明。所述无线数据压缩装置可以是图2中的无线数据压缩装置212或无线数据压缩装置224。所述无线数据压缩装置还可以是图3(a)、图3(b)或图3(c)所示的无线数据压缩装置。下面对本发明实施例一提供的无线数据传输方法进行详细说明。
601,无线数据压缩装置获得第一频域数据,所述第一频域数据包括N组数据,N为大于或等于1的整数。
举例说明,N的取值可以与图5对应的实施例中的取值相同,在此不再赘述。所述第一频域数据是对第一时域数据进行DFT变换后获得的频域数据。所述第一时域数据是从第一设备20或第二设备23获得的第一天线载波数据,或者所述第一频域数据是对来自演进型分组核心网(英文全称为evolved packet core,简称为EPC)的无线数据进行基带处理后获得的频域数据。
602,所述无线数据压缩装置根据门限值和所述N组数据中的第i组数据,确定所述第i组数据是否携带有效载荷,所述第i组数据为所述N组数据中的任意一组数据。
举例说明,所述N组数据中的每组数据包括L1个数据,所述L1个数据中的每个数据对应一个子载波,L1为大于或等于1的整数。所述无线数据压缩装置根据门限值和所述N组数据,确定所述N组数据中的第i组数据是否携带有效载荷包括:所述无线数据压缩装置确定所述L1个数据是否包括L2个数值大于所述门限值的数据,所述L2个数值大于所述门限值的数据为L2个数据的每个数据对应的子载波的数值大于所述门限值,所述L2个数据的每个数据对应的子载波的数值为所述L2个数据的每个数据对应的子载波的矢量幅度的数值,L2小于或等于L1。或者,所述无线数据压缩装置根据门限值和所述N组数据,确定所述N组数据中的第i组数据是否携带有效载荷包括:所述无线数据压缩装置确定所述L1个数据对应的L1个子载波的数值的平均值是否大于所述门限值,所述L1个子载波中任意一个子载波的数值为所述任意
一个子载波的矢量幅度的数值。
举例说明,若从第一设备20或第二设备23获得的第一天线载波数据未经过空口传输,或者来自EPC的无线数据未经过空口传输,则602中的门限值可以设为0。若门限值为0,L1的数值为12,以所述N组数据中的第i组数据为例,所述第i组数据包括12个数据,如公式(3)所示。
Ri=[Ri1,Ri2,...,Ri12] (3)
所述第i组数据包括的12个数据中的任意一个数据Ric可以复数形式进行表示为公式(4)的形式。
Ric=Iic+jQic c=1,2,...,12 (4)
公式(4)中Iic表示Ric的同相分量(英文名称为in-phase data),Qic表示Ric的正交分量(英文名称为quadrature data)。Iic和Qic均是实数。其中,c的取值为大于或等于1,且小于或等于12的整数。
数据Ric的数值是Ric的矢量幅度。Ric的矢量幅度可表示为MRic。MRic的计算公式可表示为公式(5)。
如果所述L1个数据对应的参考值为所述L1个数据中的L2个数据的每个数据对应的子载波的数值,则所述无线数据压缩装置将所述第i组数据中的每个数据的数值和所述门限值进行比较。以L2为1,所述门限值为0为例,若所述第i组数据中的12个数据中包括至少1个数据的MRic的数值大于0,则所述第i组数据携带了有效载荷。若所述第i组数据中的12个数据的MRic的数值均为0,则所述第i组数据未携带有效载荷。以L2为3,所述门限值为0为例,若所述第i组数据中的12个数据中包括至少3个数据的MRic的数值大于0,则所述第i组数据携带了有效载荷。若所述第i组数据中的仅包括1个数据的MRic的数值大于0或仅包括2个数据的MRic的数值大于0,则所述第i组数据未携带有效载荷。L2为其他数值的例子,在此不再逐一列举。
如果所述L1个数据对应的参考值为所述L1个数据对应的L1个子载波的
数值的平均值,则所述无线数据压缩装置用计算获得的所述平均值和所述门限值进行比较。以所述门限值为0为例,若所述第i组数据中的12个数据中每个数据的MRic为0,则所述无线数据压缩装置获得的平均值为0,进而所述无线数据压缩装置确定所述第i组数据未携带有效载荷。若所述第i组数据中的12个数据中包括至少一个数据的MRic大于0,则所述无线数据压缩装置获得的平均值大于0,进而所述无线数据压缩装置确定所述第i组数据携带有效载荷。
在本发明提供的实施例中,所述无线数据压缩装置根据上述方法,确定所述第i组数据未携带有效载荷。
另外,本发明实施例中的门限值还可以是动态获取的。比如:所述无线数据压缩装置在确定所述N组数据中的所述第i组数据与门限值的关系之前,所述无线数据压缩装置可获得所述第i组数据的周期之前的D个周期对应的组数据。所述门限值可根据所述第i组数据的周期之前的D个周期对应的组数据来确定。其中,本发明实施例中的N组数据中的每组数据对应一个周期。
所述门限值可以是对每个数据设置一个门限值,以第m组数据中的第f个数据为例,在周期t,与所述第m组数据中的第f个数据对应的门限值可表示为Vmf(t)。其中,m表示所述第m组数据,f表示所述第m组数据中的第f个数据,t表示所述第m组数据对应的周期。Vmf(t)可用公式(6)进行计算。
公式(6)中,MRmf为第m组数据的第f个数据对应的子载波的矢量幅值。Vmf(t)的数值为系数λ与周期t前的D个周期T对应的第m组数据中第f个数据对应的子载波的矢量幅值的平均值。D的取值为大于或等于1的整数。本发明实施例提及的N组数据可以是同一个周期的频域数据。
所述门限值还可以是对每组数据设置一个门限值。以第m组数据为例,在周期t,与所述第m组数据对应的门限值可以表示为Vm(t)。Vm(t)可用公式
(7)进行计算。
公式(7)中,Vm(t)为按照公式(6)计算的所述第m组数据包括的12个数据对应的门限值的平均值。
所述门限值还可以是对所述N组数据设置一个门限值。以所述N组数据为例,在周期t,与所述N组数据对应的门限值可以表示为Vth(t)。Vth(t)可以用公式(8)进行计算。
Vth(t)=Min(Vm(t)) (8)
公式(8)中,Vm(t)为按照公式(7)计算的所述第m组数据包括的12个数据对应的门限值的平均值。Vth(t)为所述N组数据包括的所有组数据对应的门限值的最小值。
以上为本发明实施例提供的动态确定门限值的方法,具体可以为所述无线数据压缩装置根据上述方法动态获得所述门限值,或者由能够与所述无线数据压缩装置通信的其他设备,比如控制器,根据上述方法动态获得所述门限值,能够动态获得所述门限值的其他设备将所获得的所述门限值发送给所述无线数据压缩装置,以使得所述无线数据压缩装置获得所述门限值。
603,所述无线数据压缩装置确定所述第i组数据未携带有效载荷。
603中,所述无线数据压缩装置具体可采用602中的方法,确定所述第i组数据未携带有效载荷,在此不再赘述。
604,所述无线数据压缩装置根据所述第i组数据,获得报文,所述报文为根据所述第一频域数据生成的报文,所述报文未携带所述第i组数据,所述报文包括指示信息,所述指示信息用于表示所述第i组数据未携带有效载荷。
所述无线数据压缩装置根据所述第i组数据获得报文的方式有以下三种。
方式一,所述无线数据压缩装置根据所述第i组数据,获得报文包括:所述无线数据压缩装置根据所述第i组数据,生成第一压缩指示信息,所述第一压缩指示信息用于指示所述N组数据中携带有效载荷的组数据和未携带有效
载荷的组数据,所述第一压缩指示信息包括所述N组数据中的每组数据的组标识和所述组标识对应的指示信息,所述组标识对应的指示信息用于表示所述组标识对应的组是否携带有效载荷,所述第i组数据的组标识对应的指示信息用于表示所述第i组数据未携带有效载荷,所述第一压缩指示信息为所述指示信息;所述无线数据压缩装置根据所述第一压缩指示信息,对所述N组数据中携带有效载荷的k1组数据进行封装,生成所述报文,所述报文包括所述第一压缩指示信息和所述k1组数据,所述k1为大于或等于0的整数。其中,所述第一压缩指示信息为N比特的位图,所述N比特的位图的第i比特在所述N比特的位图中的位置为所述第i组数据的组标识,所述第i比特的数值为所述第i组数据的组标识对应的指示信息。
以N为100为例,所述N比特的位图可如图7(a)所示。图7(a)中的数值0用于表示未携带有效载荷,图7(a)中的数值1用于表示携带有效载荷。图7(a)中每个数值在所示N比特的位图中的位置表示该组数据的组标识。比如:处于图7(a)所示的N比特的位图的第1行和第1列的交叉位置表示第1组数据,所述第1组数据对应的指示信息为数值0表示的信息,即所述第1组数据未携带有效载荷。处于图7(a)所示的N比特的位图的第1行和第2列的交叉位置表示第2组数据,所述第2组数据对应的指示信息为数值1表示的信息,即所述第2组数据携带有效载荷。图7(a)所示的N比特的位图中与第i组数据对应的位置上的数值为0,即所述第i组数据未携带有效载荷。
方式二,所述无线数据压缩装置根据所述第i组数据,获得报文包括:所述无线数据压缩装置根据所述第i组数据,生成第二压缩指示信息,所述第二压缩指示信息用于指示所述N组数据中携带有效载荷的组标识,所述第二压缩指示信息包括k1组数据中的每组数据的组标识,所述k1组数据为所述N组数据中携带有效载荷的组数据,所述k1为大于或等于0的整数,所述第二压缩指示信息为所述指示信息;所述无线数据压缩装置根据所述第二压缩指示信息,对所述k1组数据进行封装,生成所述报文,所述报文包括所述第二压
缩指示信息和所述k1组数据。其中,所述第二压缩指示信息可采用图7(b)中的的形式。图7(b)中的5用于表示所述N组数据中的第5组数据携带有效载荷。同理,根据图7(b)中的第二压缩指示信息可知,所述N组数据中的第5组数据、第8组数据、第22组数据….第80组数据和第93组数据为携带有效载荷的组数据。
方式三,所述无线数据压缩装置根据所述第i组数据,获得报文包括:所述无线数据压缩装置根据所述第i组数据,生成第三压缩指示信息,所述第三压缩指示信息用于指示所述N组数据中未携带有效载荷的组标识,所述第三压缩指示信息包括所述第i组数据的组标识,所述第三压缩指示信息为所述指示信息;所述无线数据压缩装置根据所述第三压缩指示信息,对所述N组数据中携带有效载荷的k1组数据进行封装,生成所述报文,所述报文包括所述第三压缩指示信息和所述k1组数据,所述k1为大于或等于0的整数。其中,所述第三压缩指示信息也可采用图7(b)所示的形式,与所述第二压缩指示信息不同之处在于,所述第三压缩指示信息中的组标识是未携带有效载荷的组数据的标识,在此不再结合附图进行说明。
可选地,所述报文的报文头携带CPRI指示信息,所述CPRI指示信息用于指示所述报文的载荷携带有CPRI控制信息,所述报文的载荷还携带所述CPRI控制信息,所述CPRI控制信息为CPRI帧中的控制字信息。
本发明实施例提供的所述报文的格式可采用图7(c)所示的格式。图7(c)中的指示信息可以是图7(a)所示的第一压缩指示信息、图7(b)所示的第二压缩指示信息或所述第三压缩指示信息。图7(c)中的携带有效载荷的组数据可以是所述N组数据中的k1组数据,即图7(c)中的携带有效载荷的组数据所携带的有效载荷可以是k1组数据所携带的有效载荷。
605,所述无线数据压缩装置向无线数据解压缩装置发送所述报文。
举例说明,所述无线数据压缩装置可通过分组网络,向所述无线数据解压缩装置发送所述报文。所述分组网络可以是以太网等能够通过报文进行传输数据和/或信息的网络。所述报文可以是以太报文、互联网协议(英文全称
为Internet Protocol,简称为IP)报文或MPLS报文,在此不再对可能采用的报文格式进行举例说明。
可选地,所述方法还包括:所述无线数据压缩装置获得与所述第一频域数据对应的逻辑管道的标识,所述逻辑管道的标识用于标识所述无线数据解压缩装置与所述无线数据压缩装置间的逻辑管道;所述无线数据压缩装置根据所述第i组数据,获得报文还包括:所述无线数据压缩装置将所述逻辑管道的标识添加至所述报文的报文头。其中,所述逻辑管道的标识为所述无线数据解压缩装置所属的VLAN的标识、所述无线数据解压缩装置被分配的MPLS标签或所述无线数据解压缩装置所属的VXLAN的VNID。
本发明实施例提供的无线数据压缩装置中,无线数据压缩装置根据门限值,确定N组数据中每组数据是否携带有效载荷,以确定没有携带有效载荷的组数据,比如所述第i组数据。无线数据压缩装置所获得的报文包括携带有效载荷的组数据而不包括未携带有效载荷的组数据,并且无线数据压缩装置以报文的形式,向无线数据解压缩装置发送携带第一频域数据的报文,有助于降低带宽需求和建网成本。
基于图6对应的实施例,本发明另一实施例提供的方法还包括:所述无线数据压缩装置获得第二频域数据,所述第二频域数据包括M组数据,M为大于或等于1的整数;所述无线数据压缩装置根据门限值和所述M组数据中的第j组数据,确定所述第j组数据是否携带有效载荷,所述第j组数据为所述M组数据中的任意一组数据;所述无线数据压缩装置确定所述第j组数据未携带有效载荷。
举例说明,所述M组数据中的每组数据包括L3个数据,所述L3个数据中的每个数据对应一个子载波,L3为大于或等于1的整数。所述无线数据压缩装置根据门限值和所述M组数据中的第j组数据,确定所述第j组数据是否携带有效载荷包括:所述无线数据压缩装置确定所述L3个数据是否包括L4个数值大于所述门限值的数据,所述L4个数值大于所述门限值的数据为L4个数据的每个数据对应的子载波的数值大于所述门限值,所述L4个数据的每
个数据对应的子载波的数值为所述L4个数据的每个数据对应的子载波的矢量幅度的数值,L4小于或等于L3。或者,所述无线数据压缩装置根据门限值和所述M组数据中的第j组数据,确定所述第j组数据是否携带有效载荷包括:所述无线数据压缩装置确定所述L3个数据对应的L3个子载波的数值的平均值是否大于所述预设的门限值,所述L3个子载波中任意一个子载波的数值为所述任意一个子载波的矢量幅度的数值。
举例说明,所述无线数据压缩装置根据所述第i组数据,获得报文包括:所述无线数据压缩装置根据所述第i组数据,生成第一压缩指示信息,所述第一压缩指示信息用于指示所述N组数据中携带有效载荷的组数据和未携带有效载荷的组数据,所述第一压缩指示信息包括所述N组数据中的每组数据的组标识和所述N组数据中的每组数据的组标识对应的指示信息,所述N组数据中的每组数据的组标识对应的指示信息用于表示是否携带有效载荷,所述第i组数据的组标识对应的指示信息用于表示所述第i组数据未携带有效载荷;所述无线数据压缩装置根据所述第j组数据,生成第二压缩指示信息,所述第二压缩指示信息用于指示所述M组数据中携带有效载荷的组数据和未携带有效载荷的组数据,所述第二压缩指示信息包括所述M组数据中每组数据的组标识和所述M组数据中每组数据的组标识对应的指示信息,所述M组数据中的每组数据的组标识对应的指示信息用于表示是否携带有效载荷,所述第j组数据的组标识对应的指示信息用于表示所述第j组数据未携带有效载荷;所述无线数据压缩装置根据所述第一压缩指示信息和所述第二压缩指示信息,对所述N组数据中携带有效载荷的k1组数据和所述M组数据中携带有效载荷的k2组数据进行封装,生成所述报文,所述报文包括第一载荷、第二载荷和频域数据的数量,所述频域数据的数量为所述报文包括的载荷数量,所述第一载荷携带所述第一压缩指示信息和所述k1组数据,所述第二载荷携带所述第二压缩指示信息和所述k2组数据,所述指示信息包括所述第一压缩指示信息和所述第二压缩指示信息,所述k1为大于或等于0的整数,所述k2为大于或等于0的整数。
可选地,所述第一压缩指示信息为N比特的位图,所述N比特的位图的第i比特在所述N比特的位图中的位置为所述第i组数据的组标识,所述第i比特的数值为所述第i组数据的组标识对应的指示信息;所述第二压缩指示信息为M比特的位图,所述M比特的位图的第j比特在所述M比特的位图中的位置为所述第j组数据的组标识,所述第j比特的数值为所述第j组数据的组标识对应的指示信息。本发明实施例提供的报文可采用图7(d)所示的结构。图7(d)中的第一压缩指示信息为本发明实施例中提及的N比特的位图,所述第一压缩指示信息可采用图7(a)或图7(b)的形式。图7(d)中的第二压缩指示信息为本发明实施例中提及的M比特的位图,所述第二压缩指示信息可采用图7(a)或图7(b)的形式。
方式二,所述无线数据压缩装置根据所述第i组数据获得报文包括:所述无线数据压缩装置根据所述第i组数据,生成第三压缩指示信息,所述第三压缩指示信息用于指示所述N组数据中携带有效载荷的组标识,所述第三压缩指示信息包括k1组数据中的每组数据的组标识,所述k1组数据为所述N组数据中携带有效载荷的组数据,所述k1为大于或等于0的整数;所述无线数据压缩装置根据所述第j组数据,生成第四压缩指示信息,所述第四压缩指示信息用于指示所述M组数据中携带有效载荷的组标识,所述第四压缩指示信息包括k2组数据中的每组数据的组标识,所述k2组数据为所述M组数据中携带有效载荷的组数据,所述k2为大于或等于0的整数;所述无线数据压缩装置根据所述第三压缩指示信息和所述第四压缩指示信息,对所述k1组数据和所述k2组数据进行封装,生成所述报文,所述报文的载荷携带所述第三压缩指示信息、所述第四压缩指示信息、所述k1组数据和所述k2组数据。
方式三,所述无线数据压缩装置根据所述第i组数据获得报文包括:所述无线数据压缩装置根据所述第i组数据,生成第五压缩指示信息,所述第五压缩指示信息用于指示所述N组数据中未携带有效载荷的组标识,所述第五压缩指示信息包括所述第i组数据的组标识;所述无线数据压缩装置根据所述第j组数据,生成第六压缩指示信息,所述第六压缩指示信息用于指示所述M组
数据中未携带有效载荷的组标识,所述第六压缩指示信息包括所述第j组数据的组标识;所述无线数据压缩装置根据所述第五压缩指示信息和所述第六压缩指示信息,对所述k1组数据和所述k2组数据进行封装,生成所述报文,所述报文的载荷携带所述第五压缩指示信息、所述第六压缩指示信息、所述k1组数据和所述k2组数据。
在本发明另一实施例提供的方法中,无线数据压缩设备可将至少两路频域数据中携带有效载荷的数据组而不包括未携带有效载荷的组数据,通过所述报文,发送至无线数据解压设备,有助于提高无线数据的传输效率,进一步节省带宽。
图8为本发明实施例一提供的无线数据传输方法的流程图。图8是从无线数据解压缩装置的角度,对本发明实施例一提供的无线数据传输方法进行说明。所述无线数据解压缩装置可以是图2中的无线数据解压缩装置214或无线数据解压缩装置222。所述无线数据压缩装置还可以是图4(a)或图4(b)所示的无线数据解压缩装置。下面对本发明实施例一提供的无线数据传输方法进行详细说明。
801,无线数据解压缩装置接收到无线数据压缩装置发送的报文,所述报文为根据第一频域数据生成的报文,所述第一频域数据包括N组数据,N为大于或等于1的整数,所述报文未携带第i组数据,所述第i组数据未携带有效载荷,所述第i组数据是所述N组数据中的一个组数据,所述报文包括指示信息,所述指示信息用于表示所述第i组数据未携带有效载荷。
本发明实施例中的所述报文与图6对应的实施例中的报文相同,在此不再赘述。
802,所述无线数据解压缩装置根据所述报文包括的所述指示信息,对所述报文进行解压缩,获得解压缩后的第一频域数据,所述解压缩后的第一频域数据包括所述第i组数据。
所述无线数据解压装置可根据以下三种方式中的任意一种获得解压缩后的第一频域数据。
方式一,所述报文包括第一压缩指示信息和所述N组数据中携带有效载荷的k1组数据,所述第一压缩指示信息为所述指示信息,所述第一压缩指示信息用于指示所述N组数据中携带有效载荷的组数据和未携带有效载荷的组数据,所述第一压缩指示信息包括所述N组数据中的每组数据的组标识和所述组标识对应的指示信息,所述组标识对应的指示信息用于表示所述组标识对应的组是否携带有效载荷,所述第i组数据的组标识对应的指示信息用于表示所述第i组数据未携带有效载荷,所述k1为大于或等于0的整数。所述无线数据解压缩装置根据所述报文包括的所述指示信息,对所述报文进行解压缩,获得解压缩后的第一频域数据包括:所述无线数据解压缩装置根据所述报文包括的所述第一压缩指示信息,从所述报文的载荷中获取所述k1组数据;所述无线数据解压缩装置根据所述第一压缩指示信息包括的所述第i组数据的组标识对应的指示信息,还原所述第i组数据;所述无线数据解压缩装置根据所述第i组数据的组标识和所述k1组数据中每组数据的组标识,对所述N组数据进行重组,获得所述解压缩后的第一频域数据。
其中,所述第一压缩指示信息为N比特的位图,所述N比特的位图的第i比特在所述N比特的位图中的位置为所述第i组数据的组标识,所述第i比特的数值为所述第i组数据的组标识对应的指示信息。
方式二,所述报文包括第二压缩指示信息和所述N组数据中携带有效载荷的k1组数据,所述第二压缩指示信息为所述指示信息,所述第二压缩指示信息用于指示所述N组数据中携带有效载荷的组标识,所述第二压缩指示信息包括所述k1组数据中的每组数据的组标识,所述k1为大于或等于0的整数。所述无线数据解压缩装置根据所述报文包括的所述指示信息,对所述报文进行解压缩,获得解压缩后的第一频域数据包括:所述无线数据解压缩装置根据所述报文包括的所述第二压缩指示信息,从所述报文的载荷中获取所述k1组数据;所述无线数据解压缩装置根据N的数值和所述k1组数据中的每组数据的组标识,还原所述第i组数据;所述无线数据解压缩装置根据所述第i组数据的组标识和所述k1组数据中每组数据的组标识,对所述N组数据进行重
组,获得解压缩后的第一频域数据。
方式三,所述报文包括第三压缩指示信息和所述N组数据中携带有效载荷的k1组数据,所述第三压缩指示信息为所述指示信息,所述第三压缩指示信息用于指示所述N组数据中未携带有效载荷的组标识,所述第三压缩指示信息包括所述第i组数据的组标识,所述k1为大于或等于0的整数。所述无线数据解压缩装置根据所述报文包括的所述指示信息,对所述报文进行解压缩,获得解压缩后的第一频域数据包括:所述无线数据解压缩装置根据所述第三压缩指示信息包括的所述第i组数据的组标识,还原所述第i组数据;所述无线数据解压缩装置根据所述第i组数据的组标识和所述k1组数据中每组数据的组标识,对所述N组数据进行重组,获得解压缩后的第一频域数据。
本发明实施例提供的方法中,无线数据解压缩装置接收到的报文携带第一压缩指示信息,所述报文包括所述N组数据中携带有效载荷的组数据,所述N组数据中存在未携带有效载荷的组数据,无线数据解压缩装置能够根据接收到的报文携带的第一指示信息和所述第一频域数据中携带有效载荷的组数据,获得解压缩后的第一频域数据,有助于实现降低带宽需求和建网成本。无线数据解压缩装置接收到报文携带第一压缩指示信息,所述报文不包括所述N组数据中的任意一组数据,即所述N组数据中不存在携带有效载荷的组数据,无线数据解压缩装置能够根据接收到的报文携带的第一指示信息,获得解压缩后的第一频域数据,有助于实现降低带宽需求和建网成本。无线数据解压缩装置接收到的报文携带第二压缩指示信息或第三压缩指示信息,能够取得与无线数据解压缩装置接收到的报文携带第一压缩指示信息相同的效果,在此不再赘述。
如果所述报文携带至少两路频域数据,比如第一频域数据和第二频域数据,所述无线数据解压缩装置能够从所述报文获得解压缩后的第一频域数据和解压缩后的第二频域数据。所述报文获得解压缩后的第一频域数据的方法与上述方法相同。下面仅对所述报文获得解压缩后的第二频域数据的方法进行说明。
在本发明提供的另一种实施例中,所述报文还包括第二频域数据,所述第二频域数据包括M组数据,所述报文未携带第j组数据,所述第j组数据未携带有效载荷,所述第j组数据是所述M组数据中的一个组数据,M为大于或等于1的整数,所述指示信息还用于表示所述第j组数据未携带有效载荷。所述无线处理解压缩装置还根据所述报文包括的所述指示信息,对所述报文进行解压缩,获得解压缩后的第二频域数据,所述解压缩后的第二频域数据包括所述第j组数据。
所述无线数据解压缩装置可采用以下三种方式中的任意一种获得解压缩后的第二频域数据。
方式一,所述报文包括第一载荷、第二载荷和频域数据的数量,所述频域数据的数量为所述报文包括的载荷数量,所述第一载荷包括第一压缩指示信息和所述N组数据中携带有效载荷的k1组数据,所述第一压缩指示信息用于指示所述N组数据中携带有效载荷的组数据和未携带有效载荷的组数据,所述第一压缩指示信息包括所述N组数据中的每组数据的组标识和所述N组数据中的每组数据的组标识对应的指示信息,所述N组数据中的每组数据的组标识对应的指示信息用于表示是否携带有效载荷,所述第i组数据的组标识对应的指示信息用于表示所述第i组数据未携带有效载荷,所述第二载荷包括第二压缩指示信息和所述M组数据中携带有效载荷的k2组数据,所述第二压缩指示信息用于指示所述M组数据中携带有效载荷的组数据和未携带有效载荷的组数据,所述第二压缩指示信息包括所述M组数据中每组数据的组标识和所述M组数据中每组数据的组标识对应的指示信息,所述M组数据中的每组数据的组标识对应的指示信息用于表示是否携带有效载荷,所述第j组数据的组标识对应的指示信息用于表示所述第j组数据未携带有效载荷,所述第二频域数据包括所述M组数据,M为大于或等于1的整数,所述指示信息包括所述第二压缩指示信息和所述第一压缩指示信息,所述k1和所述k2均为大于或等于0的整数。所述无线数据解压缩装置获得解压缩后的第二频域数据包括:所述无线数据解压缩装置根据所述报文包括的所述第二压缩指示信息,
从所述报文的第二载荷中获取所述k2组数据;所述无线数据解压缩装置根据所述第j组数据的组标识对应的指示信息,还原所述第j组数据;所述无线数据解压缩装置根据所述第j组数据的组标识和所述k2组数据中的每组数据的组标识,对所述M组数据进行重组,获得解压缩后的第二频域数据。
可选地,方式一中,所述第一压缩指示信息为N比特的位图,所述N比特的位图的第i比特在所述N比特的位图中的位置为所述第i组数据的组标识,所述第i比特的数值为所述第i组数据的组标识对应的指示信息;所述第二压缩指示信息为M比特的位图,所述M比特的位图的第j比特在所述M比特的位图中的位置为所述第j组数据的组标识,所述第j比特的数值为所述第j组数据的组标识对应的指示信息。
方式二,所述报文的报文头包括第一载荷、第二载荷和频域数据的数量,所述频域数据的数量为所述报文包括的载荷数量。所述第一载荷包括第三压缩指示信息和所述N组数据中携带有效载荷的k1组数据。所述第三压缩指示信息用于指示所述N组数据中携带有效载荷的组标识。所述第三压缩指示信息包括k1组数据中的每组数据的组标识。所述第二载荷包括第四压缩指示信息和所述M组数据中携带有效载荷的k2组数据。所述第四压缩指示信息用于指示所述M组数据中携带有效载荷的组标识。所述第四压缩指示信息包括k2组数据中的每组数据的组标识。所述k1和所述k2均为大于或等于0的整数。所述指示信息包括所述第三压缩指示信息和所述第四压缩指示信息。所述无线数据解压缩装置获得解压缩后的第二频域数据包括:所述无线数据解压缩装置根据所述报文包括的所述第四压缩指示信息,从所述报文的第二载荷中获取所述k2组数据;所述无线数据解压缩装置根据所述k2组数据中的每组数据的组标识和M的数值,还原所述第j组数据;所述无线数据解压缩装置根据所述第j组数据的组标识和所述k2组数据中的每组数据的组标识,对所述M组数据进行重组,获得所述解压缩后的第二频域数据。
方式三,所述报文的报文头包括第一载荷、第二载荷和频域数据的数量,所述频域数据的数量为所述报文包括的载荷数量。所述第一载荷包括第五压
缩指示信息和所述N组数据中携带有效载荷的k1组数据。所述第五压缩指示信息用于指示所述N组数据中未携带有效载荷的组标识,所述第五压缩指示信息包括所述第i组数据的组标识。所述第二载荷包括第六压缩指示信息和所述M组数据中携带有效载荷的k2组数据。所述第六压缩指示信息用于指示所述M组数据中未携带有效载荷的组标识,所述第六压缩指示信息包括所述第j组数据的组标识。所述k1和所述k2均为大于或等于0的整数。所述指示信息包括所述第五压缩指示信息和所述第六压缩指示信息。所述无线数据解压缩装置获得解压缩后的第二频域数据包括:所述无线数据解压缩装置根据所述报文包括的所述第六压缩指示信息中的所述第j组数据的组标识,从所述报文的第二载荷中获取所述k2组数据;所述无线数据解压缩装置根据所述第j组数据的组标识和M的数值,还原所述第j组数据;所述无线数据解压缩装置根据所述第j组数据的组标识和所述k2组数据中的每组数据的组标识,对所述M组数据进行重组,获得所述解压缩后的第二频域数据。
本发明另一实施例提供的方法中,无线数据解压缩装置可根据报文中携带的至少两个压缩指示信息,比如第一压缩指示信息和第二压缩指示信息,获知N组数据中每组数据是否携带有效载荷。无线数据解压缩装置根据报文中携带的至少两个压缩指示信息,还可获知M组数据中每组数据是否携带有效载荷。所述无线数据解压缩装置可根据所述报文中的第一载荷、第二载荷、所述第一压缩指示信息和所述第二压缩指示信息,获得第一频域数据和第二频域数据,有助于提高无线数据的传输效率。
图9为本发明实施例二提供的一种用于传输无线数据的网络场景示意图。图9所示的网络可用于传输无线数据。图9所示的网络中,第一设备91能够与EPC中的设备(图9中未示出)进行通信。第一设备91可以与第二设备92通信,比如通过分组网络、链路或光纤与第二设备92通信。第一设备91包括基带处理模块911、无线数据压缩装置912和无线数据解压缩装置913。第二设备92包括射频处理模块921、无线数据解压缩装置922和无线数据压缩装置923。其中,无线数据压缩装置912可以与无线数据压缩装置923相同,
无线数据解压缩装置913可以与无线数据解压缩装置922相同。
图9所示的网络场景中,第一设备91和第二设备92间的通信可以分为下行方向和上行方向。一种实现方式中,所述下行方向为第一设备91向第二设备92发送数据的方向,相应地,所述上行方向为第二设备92向第一设备91发送数据的方向。另一种实现方式中,所述下行方向为第二设备92向第一设备91发送数据的方向,相应地,所述上行方向为第一设备91向第二设备92发送数据的方向。
图9中的第一设备91和第二设备92能够实现双向通信。如果第一设备91和第二设备92之间实现单向通信,则第一设备91和第二设备92可包括图9中的部分结构,比如:如果实现第一设备91向第二设备92发送数据或信息,则第一设备91包括基带处理模块911和无线数据压缩装置912,相应地,第二设备92包括射频处理模块921和无线数据解压缩装置922。如果实现第二设备92向第一设备91发送数据或信息,则第二设备92包括射频处理模块921和无线数据压缩装置923,相应地,第一设备91包括基带处理模块911和无线数据解压缩装置913。
在一种实现方式中,第一设备91的基带处理模块911可将接收到的无线数据转换为频域数据。基带处理模块911向无线数据压缩装置912发送所述频域数据。无线数据压缩装置912对所述频域数据进行压缩,生成报文,所述报文不包括所述频域数据中未携带有效载荷的第i组数据,所述报文包括指示信息,所述指示信息用于指示所述第i组数据未携带有效载荷,所述第i组数据为所述至少一组数据中的任意一组数据。无线数据压缩装置912向第二设备92的无线数据解压缩装置922发送所述报文。第二设备92的无线数据解压缩装置922对接收到的所述报文进行解压缩,还原出未携带有效载荷的第i组数据。无线数据解压缩装置922根据所述报文包括的所述至少一组数据中携带有效载荷的组数据和未携带有效载荷的第i组数据,获得解压缩后的频域数据。无线数据解压缩装置922向射频处理模块921发送所述解压缩后的频域数据。射频处理模块921可将所述解压缩后的频域数据转换为射频信号,
并通过天线(图9中未示出)发送所述射频信号。
在另一种实现方式中,第二设备92的射频处理模块921通过天线(图9中未示出)接收到射频信号。射频处理模块921将接收到的射频信号转换为频域信号。射频处理模块921向无线数据压缩装置923发送所述频域信号。无线数据压缩装置923可采用与上述实现方式中的无线数据压缩装置912的方式对所述频域数据进行处理,第一设备91中的无线数据解压缩装置913可采用与上述实现方式中的无线数据解压缩装置922的方式获得解压缩后的频域数据。无线数据解压缩装置913向第一设备91的基带处理模块911发送所述解压缩后的频域数据。基带处理模块911将所述解压缩后的频域数据转换为时域数据,并发送所述时域数据。
图10(a)为本发明实施例二提供的无线数据压缩装置的示意图。图10(a)所示的无线数据压缩装置可以是图9所示的网络中的任意一个无线数据压缩装置。图10(a)所示的无线数据压缩装置包括:处理器1001、存储器1002、通信接口1003和通信总线1004。处理器1001、存储器1002和通信接口1003通过通信总线1004通信。处理器1001可以是CPU、NP或其它集成电路。存储器1002可用于存储程序。可选地,存储器1002还可用于存储指示信息,比如:第一压缩指示信息和/或第二压缩指示信息等本发明实施例提及的压缩指示信息中的一个或多个,在此不再逐一举例说明。
若图9的基带处理模块911与无线数据压缩装置912间还包括一个IDFT模块(图9未示出),和/或图9的射频处理模块921与无线数据压缩装置923间还包括一个IDFT模块(图9未示出),所述IDFT模块将基带处理模块911或射频处理模块921输出的频域数据转换为第一时域数据,则图10(a)所示的无线数据压缩装置包括的处理器1001在图3(a)所示的装置所包括的处理器301的基础上,增加了将第一时域数据转换为第一频域数据的操作。具体地,处理器1001从存储器1002中读取的程序所包括的可执行指令,通过通信接口1003接收所述第一时域数据,所述第一时域数据是第一天线载波数据。所述第一天线载波数据可以是天线载波IQ数据。处理器1001可对所述第一
时域数据进行DFT变换,获得所述第一频域数据。如果所述第一时域数据是时域IQ数据,则所述第一频域数据是频域IQ数据。
在一种具体实现方式中,无线数据压缩装置还可包括频域射频接口(英文全称为Frequency domain Radio Interface,简称为FRI)处理模块(图10(a)中未示出),FRI处理模块根据第一压缩指示信息和所述第一频域数据包括的N组数据,获得报文。FRI处理模块发送所述报文。其中,所述第一压缩指示信息和所述报文与图3(a)中的相应内容相同,在此不再赘述。换句话说,FRI处理模块能够实现图10(a)中的处理器1001获得所述报文的功能和通过通过通信接口1003发送所述报文的功能。
本发明实施例提供的无线数据压缩装置中,处理器1001根据门限值,确定所述第一频域数据包括的N组数据中每组数据是否携带有效载荷,以确定没有携带有效载荷的组数据,比如所述第i组数据。处理器1001所获得的报文包括携带有效载荷的组数据,并且处理器1001向无线数据解压缩装置发送携带第一频域数据的所述报文,有助于降低带宽需求和建网成本。
另外,图10(a)所示的无线数据压缩装置还可对至少两路频域数据进行处理,具体内容可参见图3(a)所示的无线数据压缩装置的相应内容,在此不再赘述。
图10(b)为本发明实施例二提供的无线数据压缩装置的示意图。图10(b)所示的无线数据压缩装置包括:第一获得单元1005、第一确定单元1006、第二获得单元1007、发送单元1008和接收单元1009。可选地,图10(b)所示的无线数据压缩装置还包括:第三获得单元1010和第二确定单元1011。第三获得单元1010和第二确定单元1011与图3(b)中的相应内容相同,在此不再赘述。第一获得单元1005为可选地单元,若图9的基带处理模块911与无线数据压缩装置912间还包括一个IDFT模块(图9未示出),和/或图9的射频处理模块921与无线数据压缩装置923间还包括一个IDFT模块(图9未示出),则图10(b)的无线数据压缩装置包括第一获得单元1005,否则图10(b)的无线数据压缩装置不包括第一获得单元1005。
图10(b)所示的无线数据压缩装置与图10(a)所示的无线数据压缩装置可以是同一个装置,例如为图9所示网络中的无线数据压缩装置912或无线数据压缩装置923。可以认为,图10(a)从物理的角度显示了一个无线数据压缩装置包括的内容,而图10(b)从逻辑的角度显示了一个无线数据压缩装置包括的内容。图10(b)中的发送单元1008的发送功能可以由图10(a)中的处理器1001和通信接口1003协作完成,通信接口1003可以包括至少一个物理接口。图10(b)中的第一获得单元1005、第一确定单元1006和第二获得单元1007可以由图10(a)中的处理器1001根据存储器1002存储的可执行指令来实现,处理器1001可以包括至少一个物理处理器。图10(b)中的接收单元1009的接收功能可以由图10(a)中的处理器1001和通信接口1003协作完成。可选地,图10(b)中的第三获得单元1010和第二确定单元1011可由图10(a)中的处理器1001根据存储器1002存储的可执行指令来实现。图10(b)和图10(a)中重复的内容,在图10(b)对应的实施例中不再赘述。
图10(b)中的接收单元1009用于接收第一时域数据,所述第一时域数据是从第一设备91或第二设备92获得的第一天线载波数据;所述第一获得单元1005具体用于对所述第一时域数据进行DFT,获得所述第一频域数据。
本发明实施例提供的无线数据压缩装置中,第一获得单元1005可将接收到的第一时域数据转换为第一频域数据。第一确定单元1006根据门限值,确定所述第一频域数据包括的N组数据中每组数据是否携带有效载荷,以确定没有携带有效载荷的组数据,比如所述第i组数据。第二获得单元1007所获得的报文包括携带有效载荷的组数据。发送单元1008向无线数据解压缩装置发送携带第一频域数据的所述报文,有助于降低带宽需求和建网成本。
另外,图10(b)所示的无线数据压缩装置还可对至少两路频域数据进行处理,具体内容可参见图3(b)所示的无线数据压缩装置的相应内容,在此不再赘述。
图10(c)为本发明实施例二提供的无线数据压缩装置的示意图。图10
(c)所示的无线数据压缩装置是在图10(a)所示的无线数据压缩装置的基础上,增加了判决器1016,图10(c)所示的无线数据压缩装置中的判决器1016与图3(c)所示的无线数据压缩装置的判决器316相同。图10(c)所示的无线数据压缩装置中的处理器1012处理能够实现图3(c)所示的无线数据压缩装置中处理器312所实现的操作外,还可实现图10(a)所示的无线数据压缩装置中处理器1001所实现的操作,在此不再赘述。
图11(a)为本发明实施例二提供的无线数据解压缩装置的示意图。图11(a)所示的无线数据解压缩装置可以是图9所示的网络中的任意一个无线数据解压缩装置。图11(a)所示的无线数据解压缩装置包括:处理器1101、存储器1102、通信接口1103和通信总线1104。处理器1101、存储器1102和通信接口1103通过通信总线1104通信。处理器401可以是CPU或NP。存储器1102可用于存储程序。处理器1101根据从存储器1102中读取的程序所包括的可执行指令,执行操作。若图9的基带处理模块911和无线数据解压缩装置913间还包括一个DFT模块(图9未示出),和/或射频处理模块921和无线数据解压缩装置922间还包括一个DFT模块(图9未示出),所述DFT模块可将来自无线数据解压缩装置的时域数据转换为相应的频域数据,则图11(a)所示的无线数据解压缩装置中的处理器1101除了能够实现实施例一中的处理器401所能实现的操作外,还能将解压缩后的第一频域数据转换为相应的时域数据。
举例说明,处理器1101还对解压缩后的第一频域数据进行IDFT,获得第一时域数据。所述第一时域数据是与解压缩后的第一频域数据对应的时域数据。处理器1101获得的第一时域数据可以与无线数据压缩装置获得的第一时域数据相同,也可以与无线数据压缩装置获得的第一时域数据不同。其中,若图11(a)所示的无线数据解压缩装置为图9所示的网络中的无线数据解压缩装置913,则处理器1101还通过通信接口1103,向基带处理模块911发送所述第一时域数据。若图11(a)所示的无线数据解压缩装置为图9所示的网络中的无线数据解压缩装置922,则处理器1101还通过通信接口1103,向射
频处理模块921发送所述第一时域数据。
在另一种具体实现方式中,图11(a)的无线数据解压缩装置中实现解压缩功能的可以是FRI处理模块。FRI处理模块接收无线数据压缩装置发送的报文。所述FRI处理模块对所述报文进行解压缩,获得所述解压缩后的第一频域数据,具体获得所述解压缩后的第一频域数据的内容可参见实施例一中无线数据解压缩装置的相应内容,在此不再赘述。换句话说,FRI处理模块能够实现图11(a)中的处理器1101获得解压缩后的第一频域数据的功能和处理器1101通过通信接口1103接收所述报文的功能。
本发明实施提供的无线数据解压缩装置中,无线数据解压缩装置接收到的报文携带第一压缩指示信息,所述报文包括所述N组数据中携带有效载荷的组数据,所述N组数据中存在未携带有效载荷的组数据,处理器1101能够根据接收到的报文携带的第一指示信息和所述第一频域数据中携带有效载荷的组数据,获得解压缩后的第一频域数据,有助于实现降低带宽需求和建网成本。处理器1101接收到报文携带第一压缩指示信息,所述报文不包括所述N组数据中的任意一组数据,即所述N组数据中不存在携带有效载荷的组数据,无线数据解压缩装置能够根据接收到的报文携带的第一指示信息,获得解压缩后的第一频域数据。处理器1101能够将解压缩后的第一频域转换为相应的时域数据。本发明实施例提供的无线数据解压缩装置,有助于实现降低带宽需求和建网成本。无线数据解压缩装置接收到的报文携带第二压缩指示信息或第三压缩指示信息,能够取得与无线数据解压缩装置接收到的报文携带第一压缩指示信息相同的效果,在此不再赘述。
图11(b)为本发明实施例二提供的无线数据解压缩装置的示意图。图11(b)所示的无线数据解压缩装置包括:接收单元1105、解压缩单元1106、获得单元1107和发送单元1108。获得单元1107和实施例一提供的无线数据解压缩装置中的获得单元407相同,在此不再赘述。接收单元1105和实施例一提供的无线数据解压缩装置中的接收单元405相同,在此不再赘述。解压缩单元1106和实施例一提供的无线数据解压缩装置中的解压缩单元406相
同,在此不再赘述。其中,获得单元1107为可选的单元。若图9的基带处理模块911和无线数据解压缩装置913间还包括一个DFT模块(图9未示出),和/或射频处理模块921和无线数据解压缩装置922间还包括一个DFT模块(图9未示出),所述DFT模块可将来自无线数据解压缩装置的时域数据转换为相应的频域数据,则图11(b)所示的无线数据解压缩装置包括获得单元1107,否则图11(b)所示的无线数据解压缩装置不包括获得单元1107。
图11(b)所示的无线数据解压缩装置与图11(a)所示的无线数据解压缩装置可以是同一个装置,例如为图9所示网络中的任意一个无线数据解压缩装置。可以认为,图11(a)从物理的角度显示了一个无线数据解压缩装置包括的内容,而图11(b)从逻辑的角度显示了一个无线数据解压缩装置包括的内容。图11(b)中的接收单元1105的接收功能可以由图11(a)中的处理器1101和通信接口1103协作完成,通信接口1103可以包括至少一个物理接口。图11(b)中的解压缩单元1106可以由图11(a)中的处理器1101根据存储器1102存储的可执行指令来实现,处理器1101可以包括至少一个物理处理器。图11(b)中的获得单元1107可以由图11(a)中的处理器1101根据存储器1102存储的可执行指令来实现。图11(b)中的发送单元1108的发送功能可以由图11(a)中的处理器1101和通信接口1103协作完成。
所述获得单元1107用于对所述解压缩后的第一频域数据进行IDFT,获得第一时域数据。所述第一时域数据是与解压缩后的第一频域数据对应的时域数据。处理器1101获得的第一时域数据可以与无线数据压缩装置获得的第一时域数据相同,也可以与无线数据压缩装置获得的第一时域数据不同。
所述发送单元1108用于向第一设备91或第二设备92发送所述第一时域数据。
本发明实施例提供的无线数据解压缩装置接收到的报文携带第一压缩指示信息,所述报文包括所述N组数据中携带有效载荷的组数据,所述N组数据中存在未携带有效载荷的组数据,解压缩单元1106能够根据接收到的报文携带的第一指示信息和所述第一频域数据中携带有效载荷的组数据,获得解
压缩后的第一频域数据。获得单元1107能够将解压缩后的第一频域数据转换为相应的时域数据。本发明实施例提供的无线数据解压缩装置,有助于实现降低带宽需求和建网成本。无线数据解压缩装置接收到报文携带第一压缩指示信息,所述报文不包括所述N组数据中的任意一组数据,即所述N组数据中不存在携带有效载荷的组数据,解压缩单元1106能够根据接收到的报文携带的第一指示信息,获得解压缩后的第一频域数据。获得单元1107能够将解压缩后的第一频域数据转换为相应的时域数据。本发明实施例提供的无线数据解压缩装置,有助于实现降低带宽需求和建网成本。无线数据解压缩装置接收到的报文携带第二压缩指示信息或第三压缩指示信息,能够取得与无线数据解压缩装置接收到的报文携带第一压缩指示信息相同的效果,在此不再赘述。
图12为本发明实施例二提供的无线数据传输方法的流程图。图12是从无线数据压缩装置的角度,对本发明实施例二提供的无线数据传输方法进行说明。本发明实施例二提供的无线数据传输方法中,所述无线数据压缩装置可以是图10(a)、图10(b)或图10(c)对应的实施例中涉及的能够进行DFT的无线数据压缩装置,所述无线数据压缩装置能够对接收到的第一时域数据进行DFT处理并获得第一频域数据。下面对本发明实施例二提供的无线数据传输方法进行详细说明。本发明实施例二提供的无线数据传输方法以第一设备91向第二设备92传输无线数据的方向为例进行说明。
1200,无线数据压缩装置接收第一时域数据。
举例说明,所述第一时域数据与实施例一中提及的第一时域数据相同,在此不在赘述。所述无线数据压缩装置可从图9所示的装置包括的基带处理模块911获得所述第一时域数据。所述基带处理模块911可以是通常的用于将无线数据转换为时域数据的基带处理芯片或实现该功能的软件模块,在此不再对其具体结构和功能进行赘述。
1201,所述无线数据压缩装置获得第一频域数据,所述第一频域数据包括N组数据,N为大于或等于1的整数。
举例说明,所述无线数据压缩装置可采用图5对应的实施例中的DFT模块采用的方法,将所述第一时域数据转换成第一频域数据,在此不再赘述。
1202,所述无线数据压缩装置根据门限值和所述N组数据中的第i组数据,确定所述第i组数据是否携带有效载荷,所述第i组数据为所述N组数据中的任意一组数据。
1203,所述无线数据压缩装置确定所述第i组数据未携带有效载荷。
1204,所述无线数据压缩装置根据所述第i组数据,获得报文,所述报文为根据所述第一频域数据生成的报文,所述报文未携带所述第i组数据,所述报文包括指示信息,所述指示信息用于表示所述第i组数据未携带有效载荷。
1205,所述无线数据压缩装置向无线数据解压缩装置发送所述报文。
1202至1205的内容与实施例一中602至605的内容相同,在此不再赘述。
本发明实施例提供的无线数据压缩装置中,无线数据压缩装置可将第一时域数据转换为第一频域数据。所述无线数据压缩装置根据门限值,确定所述第一频域数据包括的N组数据中每组数据是否携带有效载荷,以确定没有携带有效载荷的组数据,比如所述第i组数据。无线数据压缩装置所获得的报文包括携带有效载荷的组数据,不包括未携带有效载荷的组数据。无线数据压缩装置向无线数据解压缩装置发送携带第一频域数据的所述报文,有助于降低带宽需求和建网成本。
图13为本发明实施例二提供的无线数据传输方法的流程图。图12是从无线数据解压缩装置的角度,对本发明实施例二提供的无线数据传输方法进行说明。所述无线数据解压缩装置可以是图11(a)或图11(b)对应的实施例中涉及的具有IDFT功能的无线数据解压缩装置。所述无线数据解压缩装置能够对解压缩后的第一频域数据进行IDFT处理,获得与所述解压缩后的第一频域数据对应的时域数据。本发明实施例二提供的无线数据传输方法以第一设备91向第二设备92传输无线数据的方向为例进行说明。下面对本发明实施例二提供的无线数据传输方法进行详细说明。
1301,无线数据解压缩装置接收到无线数据压缩装置发送的报文,所述
报文为根据第一频域数据生成的报文,所述第一频域数据包括N组数据,N为大于或等于1的整数,所述报文未携带第i组数据,所述第i组数据未携带有效载荷,所述第i组数据是所述N组数据中的一个组数据,所述报文包括指示信息,所述指示信息用于表示所述第i组数据未携带有效载荷。
1302,所述无线数据解压缩装置根据所述报文包括的所述指示信息,对所述报文进行解压缩,获得解压缩后的第一频域数据,所述解压缩后的第一频域数据包括所述第i组数据。
1303,所述无线数据解压缩装置对所述解压缩后的第一频域数据进行IDFT,获得第一时域数据。
举例说明,所述无线数据解压缩装置进行IDFT操作的方法可参见图5对应的实施例中IDFT模块进行的处理,在此不再赘述。1303中的第一时域数据可以与无线数据压缩装置接收到的第一时域数据相同,也可以与无线数据压缩装置接收到的第一时域数据不同。
本发明实施例中的1301至1302与图8中801至802的内容相同,在此不再赘述。
本发明实施例提供的方法中,无线数据解压缩装置接收到的报文携带第一压缩指示信息,所述报文包括所述N组数据中携带有效载荷的组数据,所述N组数据中存在未携带有效载荷的组数据,所述无线数据解压缩装置能够根据接收到的报文携带的第一指示信息和所述第一频域数据中携带有效载荷的组数据,获得解压缩后的第一频域数据。所述无线数据解压缩装置能够将解压缩后的第一频域数据转换为相应的时域数据。本发明实施例提供的无线数据解压缩装置,有助于实现降低带宽需求和建网成本。所述无线数据解压缩装置接收到报文携带第一压缩指示信息,所述报文不包括所述N组数据中的任意一组数据,即所述N组数据中不存在携带有效载荷的组数据,所述无线数据解压缩装置能够根据接收到的报文携带的第一指示信息,获得解压缩后的第一频域数据。所述无线数据解压缩装置能够将解压缩后的第一频域数据转换为相应的时域数据。本发明实施例提供的无线数据解压缩装置,有助
于实现降低带宽需求和建网成本。无线数据解压缩装置接收到的报文携带第二压缩指示信息或第三压缩指示信息,能够取得与无线数据解压缩装置接收到的报文携带第一压缩指示信息相同的效果,在此不再赘述。
本发明实施例还提供了一种用于传输无线数据的系统,如图14所示。所述用于传输无线数据的系统包括无线数据压缩装置和无线数据解压缩装置。所述无线数据压缩装置和所述无线数据解压缩装置可以通过光纤或者分组网络通信。所述无线数据压缩装置可以是图3(a)、图3(b)或图3(c)所示的无线数据压缩装置,相应地,所述无线数据解压缩装置可以是图4(b)或图4(a)所示的无线数据解压缩装置。所述无线数据压缩装置可以是图10(a)、图10(b)或图10(c)所示的无线数据压缩装置,相应地,所述无线数据解压缩装置可以是图11(b)或图11(a)所示的无线数据解压缩装置。在此不再对所述无线数据压缩装置和所述无线数据解压缩装置的具体结构进行赘述。
所述无线数据压缩装置获得第一频域数据,所述第一频域数据包括N组数据,N为大于或等于1的整数;所述无线数据压缩装置根据门限值和所述N组数据中的第i组数据,确定所述第i组数据是否携带有效载荷,所述第i组数据为所述N组数据中的任意一组数据;所述无线数据压缩装置确定所述第i组数据未携带有效载荷;所述无线数据压缩装置根据所述第i组数据,获得报文,所述报文为根据所述第一频域数据生成的报文,所述报文未携带所述第i组数据,所述报文包括指示信息,所述指示信息用于表示所述第i组数据未携带有效载荷;所述无线数据压缩装置向无线数据解压缩装置发送所述报文。所述无线数据压缩装置获得第一频域数据,具体为:所述无线数据压缩装置从BBU或RRU获得第一频域数据。
所述无线数据解压缩装置接收到所述无线数据压缩装置发送的报文,所述报文为根据第一频域数据生成的报文,所述第一频域数据包括N组数据,N为大于或等于1的整数,所述报文未携带第i组数据,所述第i组数据未携带有效载荷,所述第i组数据是所述N组数据中的一个组数据,所述报文包
括指示信息,所述指示信息用于表示所述第i组数据未携带有效载荷;所述无线数据解压缩装置根据所述报文包括的所述指示信息,对所述报文进行解压缩,获得解压缩后的第一频域数据,所述解压缩后的第一频域数据包括所述第i组数据。
举例说明,所述无线数据压缩装置根据所述第i组数据,获得报文具体包括:所述无线数据压缩装置根据所述第i组数据,生成第一压缩指示信息,所述第一压缩指示信息包括所述N组数据中的每组数据的组标识和所述组标识对应的指示信息,所述组标识对应的指示信息用于表示所述组标识对应的组是否携带有效载荷,所述第i组数据的组标识对应的指示信息用于表示所述第i组数据未携带有效载荷,所述第一压缩指示信息为所述指示信息;所述无线数据压缩装置根据所述第一压缩指示信息,对所述N组数据中携带有效载荷的k1组数据进行封装,生成所述报文,所述报文包括所述第一压缩指示信息和所述k1组数据,所述k1为大于或等于0的整数。
相应地,所述无线数据解压缩装置根据所述报文包括的所述指示信息,对所述报文进行解压缩,获得解压缩后的第一频域数据具体包括:所述无线数据解压缩装置根据所述报文包括的所述第一压缩指示信息,从所述报文的载荷中获取所述k1组数据;所述无线数据解压缩装置根据所述第一压缩指示信息包括的所述第i组数据的组标识对应的指示信息,还原所述第i组数据;所述无线数据解压缩装置根据所述第i组数据的组标识和所述k1组数据中每组数据的组标识,对所述N组数据进行重组,获得所述解压缩后的第一频域数据。
可选地,所述第一压缩指示信息为N比特的位图,所述N比特的位图的第i比特在所述N比特的位图中的位置为所述第i组数据的组标识,所述第i比特的数值为所述第i组数据的组标识对应的指示信息。
举例说明,所述无线数据压缩装置根据所述第i组数据,获得报文具体包括:所述无线数据压缩装置根据所述第i组数据,生成第二压缩指示信息,所述第二压缩指示信息用于指示所述N组数据中携带有效载荷的组标识,所述
第二压缩指示信息包括k1组数据中的每组数据的组标识,所述k1组数据为所述N组数据中携带有效载荷的组数据,所述k1为大于或等于0的整数,所述第二压缩指示信息为所述指示信息;所述无线数据压缩装置根据所述第二压缩指示信息,对所述k1组数据进行封装,生成所述报文,所述报文包括所述第二压缩指示信息和所述k1组数据。
相应地,所述无线数据解压缩装置根据所述报文包括的所述指示信息,对所述报文进行解压缩,获得解压缩后的第一频域数据具体包括:所述无线数据解压缩装置根据所述报文包括的所述第二压缩指示信息,从所述报文的载荷中获取所述k1组数据;所述无线数据解压缩装置根据N的数值和所述k1组数据中的每组数据的组标识,还原所述第i组数据;所述无线数据解压缩装置根据所述第i组数据的组标识和所述k1组数据中每组数据的组标识,对所述N组数据进行重组,获得解压缩后的第一频域数据。
举例说明,所述无线数据压缩装置根据所述第i组数据,获得报文具体包括:所述无线数据压缩装置根据所述第i组数据,生成第三压缩指示信息,所述第三压缩指示信息用于指示所述N组数据中未携带有效载荷的组标识,所述第三压缩指示信息包括所述第i组数据的组标识,所述第三压缩指示信息为所述指示信息;所述无线数据压缩装置根据所述第三压缩指示信息,对所述N组数据中携带有效载荷的k1组数据进行封装,生成所述报文,所述报文包括所述第三压缩指示信息和所述k1组数据,所述k1为大于或等于0的整数。
相应地,所述无线数据解压缩装置根据所述报文包括的所述指示信息,对所述报文进行解压缩,获得解压缩后的第一频域数据具体包括:所述无线数据解压缩装置根据所述第三压缩指示信息包括的所述第i组数据的组标识,还原所述第i组数据;所述无线数据解压缩装置根据所述第i组数据的组标识和所述k1组数据中每组数据的组标识,对所述N组数据进行重组,获得解压缩后的第一频域数据。
在本发明实施例提供的另一系统中,无线数据压缩装置和无线数据解压缩装置还可对至少两路频域数据进行传输。本实施例提供的系统中的无线数
据压缩装置除了能够实现图14对应的实施例中的无线数据压缩装置所能实现的功能外,还可获得第二频域数据,所述第二频域数据包括M组数据,M为大于或等于1的整数;所述无线数据压缩装置根据门限值和所述M组数据中的第j组数据,确定所述第j组数据是否携带有效载荷,所述第j组数据为所述M组数据中的任意一组数据;所述无线数据压缩装置确定所述第j组数据未携带有效载荷。
相应地,本实施例提供的无线数据解压缩装置除了能够实现图14对应的实施例中的无线数据解压缩装置所能够实现的功能外,还可根据所述报文包括的所述指示信息,对所述报文进行解压缩,获得解压缩后的第二频域数据,所述解压缩后的第二频域数据包括所述第j组数据。
举例说明,所述无线数据压缩装置根据所述第i组数据,获得报文具体包括:所述无线数据压缩装置根据所述第i组数据,生成第一压缩指示信息,所述第一压缩指示信息包括所述N组数据中的每组数据的组标识和所述N组数据中的每组数据的组标识对应的指示信息,所述N组数据中的每组数据的组标识对应的指示信息用于表示是否携带有效载荷,所述第i组数据的组标识对应的指示信息用于表示所述第i组数据未携带有效载荷;所述无线数据压缩装置根据所述第j组数据,生成第二压缩指示信息,所述第二压缩指示信息包括所述M组数据中每组数据的组标识和所述M组数据中每组数据的组标识对应的指示信息,所述M组数据中的每组数据的组标识对应的指示信息用于表示是否携带有效载荷,所述第j组数据的组标识对应的指示信息用于表示所述第j组数据未携带有效载荷;所述无线数据压缩装置根据所述第一压缩指示信息和所述第二压缩指示信息,对所述N组数据中携带有效载荷的k1组数据和所述M组数据中携带有效载荷的k2组数据进行封装,生成所述报文,所述报文包括第一载荷、第二载荷和频域数据的数量,所述频域数据的数量为所述报文包括的载荷数量,所述第一载荷携带所述第一压缩指示信息和所述k1组数据,所述第二载荷携带所述第二压缩指示信息和所述k2组数据,所述指示信息包括所述第一压缩指示信息和所述第二压缩指示信息,所述k1为大于或等
于0的整数,所述k2为大于或等于0的整数。
相应地,所述无线数据解压缩装置根据所述报文包括的所述指示信息,对所述报文进行解压缩,获得解压缩后的第一频域数据具体包括:所述无线数据解压缩装置根据所述报文包括的所述第一压缩指示信息,从所述报文的载荷中获取所述k1组数据;所述无线数据解压缩装置根据所述第一压缩指示信息包括的所述第i组数据的组标识对应的指示信息,还原所述第i组数据;所述无线数据解压缩装置根据所述第i组数据的组标识和所述k1组数据中每组数据的组标识,对所述N组数据进行重组,获得所述解压缩后的第一频域数据。
相应地,所述无线数据解压缩装置根据所述报文包括的所述指示信息,对所述报文进行解压缩,获得解压缩后的第二频域数据具体包括:所述无线数据解压缩装置根据所述报文包括的所述第二压缩指示信息,从所述报文的第二载荷中获取所述k2组数据;所述无线数据解压缩装置根据所述第j组数据的组标识对应的指示信息,还原所述第j组数据;所述无线数据解压缩装置根据所述第j组数据的组标识和所述k2组数据中的每组数据的组标识,对所述M组数据进行重组,获得解压缩后的第二频域数据。
可选地,所述第一压缩指示信息为N比特的位图,所述N比特的位图的第i比特在所述N比特的位图中的位置为所述第i组数据的组标识,所述第i比特的数值为所述第i组数据的组标识对应的指示信息;所述第二压缩指示信息为M比特的位图,所述M比特的位图的第j比特在所述M比特的位图中的位置为所述第j组数据的组标识,所述第j比特的数值为所述第j组数据的组标识对应的指示信息。
举例说明,所述无线数据压缩装置根据所述第i组数据获得报文包括:所述无线数据压缩装置根据所述第i组数据,生成第三压缩指示信息,所述第三压缩指示信息用于指示所述N组数据中携带有效载荷的组标识,所述第三压缩指示信息包括k1组数据中的每组数据的组标识,所述k1组数据为所述N组数据中携带有效载荷的组数据,所述k1为大于或等于0的整数;所述无线数
据压缩装置根据所述第j组数据,生成第四压缩指示信息,所述第四压缩指示信息用于指示所述M组数据中携带有效载荷的组标识,所述第四压缩指示信息包括k2组数据中的每组数据的组标识,所述k2组数据为所述M组数据中携带有效载荷的组数据,所述k2为大于或等于0的整数;所述无线数据压缩装置根据所述第三压缩指示信息和所述第四压缩指示信息,对所述k1组数据和所述k2组数据进行封装,生成所述报文,所述报文的载荷携带所述第三压缩指示信息、所述第四压缩指示信息、所述k1组数据和所述k2组数据。
相应地,所述无线数据解压缩装置获得解压缩后的第一频域数据具体包括:所述无线数据解压缩装置根据所述报文包括的所述第三压缩指示信息,从所述报文的载荷中获取所述k1组数据;所述无线数据解压缩装置根据N的数值和所述k1组数据中的每组数据的组标识,还原所述第i组数据;所述无线数据解压缩装置根据所述第i组数据的组标识和所述k1组数据中每组数据的组标识,对所述N组数据进行重组,获得所述解压缩后的第一频域数据。
相应地,所述无线数据解压缩装置获得解压缩后的第二频域数据具体包括:所述无线数据解压缩装置根据所述报文包括的所述第四压缩指示信息,从所述报文的第二载荷中获取所述k2组数据;所述无线数据解压缩装置根据所述k2组数据中的每组数据的组标识和M的数值,还原所述第j组数据;所述无线数据解压缩装置根据所述第j组数据的组标识和所述k2组数据中的每组数据的组标识,对所述M组数据进行重组,获得所述解压缩后的第二频域数据。
举例说明,所述无线数据压缩装置根据所述第i组数据获得报文具体包括:所述无线数据压缩装置根据所述第i组数据,生成第五压缩指示信息,所述第五压缩指示信息用于指示所述N组数据中未携带有效载荷的组标识,所述第五压缩指示信息包括所述第i组数据的组标识;所述无线数据压缩装置根据所述第j组数据,生成第六压缩指示信息,所述第六压缩指示信息用于指示所述M组数据中未携带有效载荷的组标识,所述第六压缩指示信息包括所述第j组数据的组标识;所述无线数据压缩装置根据所述第五压缩指示信息和所
述第六压缩指示信息,对所述k1组数据和所述k2组数据进行封装,生成所述报文,所述报文的载荷携带所述第五压缩指示信息、所述第六压缩指示信息、所述k1组数据和所述k2组数据。
相应地,所述无线数据解压缩装置获得所述解压缩后的第一频域数据具体包括:所述无线数据解压缩装置根据所述第五压缩指示信息包括的所述第i组数据的组标识,还原所述第i组数据;所述无线数据解压缩装置根据所述第i组数据的组标识和所述k1组数据中每组数据的组标识,对所述N组数据进行重组,获得所述解压缩后的第一频域数据。
相应地,所述无线数据解压缩装置获得所述解压缩后的第二频域数据具体包括:所述无线数据解压缩装置根据所述第六压缩指示信息包括的所述第j组数据的组标识,还原所述第j组数据;所述无线数据解压缩装置根据所述第j组数据的组标识和所述k2组数据中每组数据的组标识,对所述M组数据进行重组,获得所述解压缩后的第二频域数据。
本发明实施例提供的系统中,所述无线数据压缩装置可将至少两路频域数据压缩至一个报文中,发送至所述无线数据解压缩装置,有助于提供无线数据的传输效率。当然,所述无线数据压缩装置可将第一频域数据和第二频域数据分别压缩至两个报文中,即一个报文携带一个频域数据,具体可参见图14对应的实施例。
可选地,本发明实施例提供的方法、装置和系统中,所述无线数据压缩装置可以位于BBU侧,相应地所述无线数据解压缩装置位于RRU侧,其中所述无线数据压缩装置可以是BBU的功能模块,也可以是独立于BBU设置的设备;所述无线数据解压缩装置可以是RRU的功能模块,也可以是独立于RRU设置的设备。
可选地,本发明实施例提供的方法、装置和系统中,所述无线数据压缩装置可以位于RRU侧,相应地所述无线数据解压缩装置位于BBU侧,其中所述无线数据压缩装置可以是RRU的功能模块,也可以是独立于RRU设置的设备;所述无线数据解压缩装置可以是BBU的功能模块,也可以是独立于
BBU设置的设备。
上述通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器。结合本发明实施例所公开的方法的步骤,可以直接体现为硬件处理器执行完成,或者用处理器中的硬件及软件模块组合执行完成。当使用软件实现时,可以将实现上述功能的代码存储在计算机可读介质中。计算机可读介质包括计算机存储介质。存储介质可以是计算机能够存取的任何可用介质。以此为例但不限于:计算机可读介质可以是随机存取存储器(英文全称为random access memory,英文缩写为RAM)、只读存储器(英文全称为read-only memory,英文缩写为ROM)、电可擦可编程只读存储器(英文全称为electrically erasable programmable read-only memory,英文缩写为EEPROM)、只读光盘(英文全称为compact disc read-only memory,英文缩写为CD-ROM)或其他光盘存储、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的程序代码并能够由计算机存取的任何其他介质。计算机可读介质可以是压缩光碟(英文全称为compact disc,英文缩写为CD)、激光碟、数字视频光碟(英文全称为digital video disc,英文缩写为DVD)、软盘或者蓝光碟。
最后应说明的是:以上实施例仅用以示例性说明本发明的技术方案,而非对其限制;尽管参照前述实施例对本发明及本发明带来的有益效果进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本发明权利要求的范围。
Claims (45)
- 一种用于传输无线数据的方法,其特征在于,所述方法包括:无线数据压缩装置获得第一频域数据,所述第一频域数据包括N组数据,N为大于或等于1的整数;所述无线数据压缩装置根据门限值和所述N组数据中的第i组数据,确定所述第i组数据是否携带有效载荷,所述第i组数据为所述N组数据中的任意一组数据;所述无线数据压缩装置确定所述第i组数据未携带有效载荷;所述无线数据压缩装置根据所述第i组数据,获得报文,所述报文为根据所述第一频域数据生成的报文,所述报文未携带所述第i组数据,所述报文包括指示信息,所述指示信息用于表示所述第i组数据未携带有效载荷;所述无线数据压缩装置发送所述报文。
- 如权利要求1所述的方法,其特征在于,所述N组数据中的每组数据包括L1个数据,所述L1个数据中的每个数据对应一个子载波,L1为大于或等于1的整数;所述无线数据压缩装置根据门限值和所述N组数据,确定所述N组数据中的第i组数据是否携带有效载荷包括:所述无线数据压缩装置确定所述L1个数据是否包括L2个数值大于所述门限值的数据,所述L2个数值大于所述门限值的数据为L2个数据的每个数据对应的子载波的数值大于所述门限值,所述L2个数据的每个数据对应的子载波的数值为所述L2个数据的每个数据对应的子载波的矢量幅度的数值,L2小于或等于L1。
- 如权利要求1所述的方法,其特征在于,所述N组数据中的每组数据包括L1个数据,所述L1个数据中的每个数据对应一个子载波,L1为大于或等于1的整数;所述无线数据压缩装置根据门限值和所述N组数据,确定所述N组数据 中的第i组数据是否携带有效载荷包括:所述无线数据压缩装置确定所述L1个数据对应的L1个子载波的数值的平均值是否大于所述门限值,所述L1个子载波中任意一个子载波的数值为所述任意一个子载波的矢量幅度的数值。
- 如权利要求1至3任意一项所述的方法,其特征在于,所述无线数据压缩装置根据所述第i组数据,获得报文包括:所述无线数据压缩装置根据所述第i组数据,生成第一压缩指示信息,所述第一压缩指示信息包括所述N组数据中的每组数据的组标识和所述组标识对应的指示信息,所述组标识对应的指示信息用于表示所述组标识对应的组是否携带有效载荷,所述第i组数据的组标识对应的指示信息用于表示所述第i组数据未携带有效载荷,所述第一压缩指示信息为所述指示信息;所述无线数据压缩装置根据所述第一压缩指示信息,对所述N组数据中携带有效载荷的k1组数据进行封装,生成所述报文,所述报文包括所述第一压缩指示信息和所述k1组数据,所述k1为大于或等于0的整数。
- 如权利要求4所述的方法,其特征在于,所述第一压缩指示信息为N比特的位图,所述N比特的位图的第i比特在所述N比特的位图中的位置为所述第i组数据的组标识,所述第i比特的数值为所述第i组数据的组标识对应的指示信息。
- 如权利要求1至3任意一项所述的方法,其特征在于,所述无线数据压缩装置根据所述第i组数据,获得报文包括:所述无线数据压缩装置根据所述第i组数据,生成第二压缩指示信息,所述第二压缩指示信息用于指示所述N组数据中携带有效载荷的组标识,所述第二压缩指示信息包括k1组数据中的每组数据的组标识,所述k1组数据为所述N组数据中携带有效载荷的组数据,所述k1为大于或等于0的整数,所述第二压缩指示信息为所述指示信息;所述无线数据压缩装置根据所述第二压缩指示信息,对所述k1组数据进行封装,生成所述报文,所述报文包括所述第二压缩指示信息和所述k1组数 据。
- 如权利要求1至3任意一项所述的方法,其特征在于,所述无线数据压缩装置根据所述第i组数据,获得报文包括:所述无线数据压缩装置根据所述第i组数据,生成第三压缩指示信息,所述第三压缩指示信息用于指示所述N组数据中未携带有效载荷的组标识,所述第三压缩指示信息包括所述第i组数据的组标识,所述第三压缩指示信息为所述指示信息;所述无线数据压缩装置根据所述第三压缩指示信息,对所述N组数据中携带有效载荷的k1组数据进行封装,生成所述报文,所述报文包括所述第三压缩指示信息和所述k1组数据,所述k1为大于或等于0的整数。
- 如权利要求1至7任意一项所述的方法,其特征在于,所述无线数据压缩装置获得所述第一频域数据包括:所述无线数据压缩装置接收第一时域数据,所述第一时域数据是从第一设备或第二设备获得的第一天线载波数据,所述第一设备是能够实现数字基带处理功能的设备,所述第二设备是能够实现射频功能的设备;所述无线数据压缩装置对所述第一时域数据进行离散傅里叶变换,获得所述第一频域数据。
- 如权利要求1至3任意一项所述的方法,其特征在于,所述方法还包括:所述无线数据压缩装置获得第二频域数据,所述第二频域数据包括M组数据,M为大于或等于1的整数;所述无线数据压缩装置根据门限值和所述M组数据中的第j组数据,确定所述第j组数据是否携带有效载荷,所述第j组数据为所述M组数据中的任意一组数据;所述无线数据压缩装置确定所述第j组数据未携带有效载荷。
- 如权利要求9所述的方法,其特征在于,所述M组数据中的每组数据包括L3个数据,所述L3个数据中的每个数据对应一个子载波,L3为大于或 等于1的整数;所述无线数据压缩装置根据门限值和所述M组数据中的第j组数据,确定所述第j组数据是否携带有效载荷包括:所述无线数据压缩装置确定所述L3个数据是否包括L4个数值大于所述门限值的数据,所述L4个数值大于所述门限值的数据为L4个数据的每个数据对应的子载波的数值大于所述门限值,所述L4个数据的每个数据对应的子载波的数值为所述L4个数据的每个数据对应的子载波的矢量幅度的数值,L4小于或等于L3。
- 如权利要求9所述的方法,其特征在于,所述M组数据中的每组数据包括L3个数据,所述L3个数据中的每个数据对应一个子载波,L3为大于或等于1的整数;所述无线数据压缩装置根据门限值和所述M组数据中的第j组数据,确定所述第j组数据是否携带有效载荷包括:所述无线数据压缩装置确定所述L3个数据对应的L3个子载波的数值的平均值是否大于所述预设的门限值,所述L3个子载波中任意一个子载波的数值为所述任意一个子载波的矢量幅度的数值。
- 如权利要求9至11任意一项所述的方法,其特征在于,所述无线数据压缩装置根据所述第i组数据,获得报文包括:所述无线数据压缩装置根据所述第i组数据,生成第一压缩指示信息,所述第一压缩指示信息包括所述N组数据中的每组数据的组标识和所述N组数据中的每组数据的组标识对应的指示信息,所述N组数据中的每组数据的组标识对应的指示信息用于表示是否携带有效载荷,所述第i组数据的组标识对应的指示信息用于表示所述第i组数据未携带有效载荷;所述无线数据压缩装置根据所述第j组数据,生成第二压缩指示信息,所述第二压缩指示信息包括所述M组数据中每组数据的组标识和所述M组数据中每组数据的组标识对应的指示信息,所述M组数据中的每组数据的组标识对应的指示信息用于表示是否携带有效载荷,所述第j组数据的组标识对应的 指示信息用于表示所述第j组数据未携带有效载荷;所述无线数据压缩装置根据所述第一压缩指示信息和所述第二压缩指示信息,对所述N组数据中携带有效载荷的k1组数据和所述M组数据中携带有效载荷的k2组数据进行封装,生成所述报文,所述报文包括第一载荷、第二载荷和频域数据的数量,所述频域数据的数量为所述报文包括的载荷数量,所述第一载荷携带所述第一压缩指示信息和所述k1组数据,所述第二载荷携带所述第二压缩指示信息和所述k2组数据,所述指示信息包括所述第一压缩指示信息和所述第二压缩指示信息,所述k1为大于或等于0的整数,所述k2为大于或等于0的整数。
- 如权利要求12所述的方法,其特征在于,所述第一压缩指示信息为N比特的位图,所述N比特的位图的第i比特在所述N比特的位图中的位置为所述第i组数据的组标识,所述第i比特的数值为所述第i组数据的组标识对应的指示信息;所述第二压缩指示信息为M比特的位图,所述M比特的位图的第j比特在所述M比特的位图中的位置为所述第j组数据的组标识,所述第j比特的数值为所述第j组数据的组标识对应的指示信息。
- 一种用于传输无线数据的方法,其特征在于,所述方法包括:无线数据解压缩装置接收到报文,所述报文为根据第一频域数据生成的报文,所述第一频域数据包括N组数据,N为大于或等于1的整数,所述报文未携带第i组数据,所述第i组数据未携带有效载荷,所述第i组数据是所述N组数据中的一个组数据,所述报文包括指示信息,所述指示信息用于表示所述第i组数据未携带有效载荷;所述无线数据解压缩装置根据所述报文包括的所述指示信息,对所述报文进行解压缩,获得解压缩后的第一频域数据,所述解压缩后的第一频域数据包括所述第i组数据。
- 如权利要求14所述的方法,其特征在于,所述报文包括第一压缩指示信息和所述N组数据中携带有效载荷的k1组数据,所述第一压缩指示信息 为所述指示信息,所述第一压缩指示信息包括所述N组数据中的每组数据的组标识和所述组标识对应的指示信息,所述组标识对应的指示信息用于表示所述组标识对应的组是否携带有效载荷,所述第i组数据的组标识对应的指示信息用于表示所述第i组数据未携带有效载荷,所述k1为大于或等于0的整数;所述无线数据解压缩装置根据所述报文包括的所述指示信息,对所述报文进行解压缩,获得解压缩后的第一频域数据包括:所述无线数据解压缩装置根据所述报文包括的所述第一压缩指示信息,从所述报文的载荷中获取所述k1组数据;所述无线数据解压缩装置根据所述第一压缩指示信息包括的所述第i组数据的组标识对应的指示信息,还原所述第i组数据;所述无线数据解压缩装置根据所述第i组数据的组标识和所述k1组数据中每组数据的组标识,对所述N组数据进行重组,获得所述解压缩后的第一频域数据。
- 如权利要求15所述的方法,其特征在于,所述第一压缩指示信息为N比特的位图,所述N比特的位图的第i比特在所述N比特的位图中的位置为所述第i组数据的组标识,所述第i比特的数值为所述第i组数据的组标识对应的指示信息。
- 如权利要求14所述的方法,其特征在于,所述报文包括第二压缩指示信息和所述N组数据中携带有效载荷的k1组数据,所述第二压缩指示信息为所述指示信息,所述第二压缩指示信息用于指示所述N组数据中携带有效载荷的组标识,所述第二压缩指示信息包括所述k1组数据中的每组数据的组标识,所述k1为大于或等于0的整数;所述无线数据解压缩装置根据所述报文包括的所述指示信息,对所述报文进行解压缩,获得解压缩后的第一频域数据包括:所述无线数据解压缩装置根据所述报文包括的所述第二压缩指示信息,从所述报文的载荷中获取所述k1组数据;所述无线数据解压缩装置根据N的数值和所述k1组数据中的每组数据的组标识,还原所述第i组数据;所述无线数据解压缩装置根据所述第i组数据的组标识和所述k1组数据中每组数据的组标识,对所述N组数据进行重组,获得解压缩后的第一频域数据。
- 如权利要求14所述的方法,其特征在于,所述报文包括第三压缩指示信息和所述N组数据中携带有效载荷的k1组数据,所述第三压缩指示信息为所述指示信息,所述第三压缩指示信息用于指示所述N组数据中未携带有效载荷的组标识,所述第三压缩指示信息包括所述第i组数据的组标识,所述k1为大于或等于0的整数;所述无线数据解压缩装置根据所述报文包括的所述指示信息,对所述报文进行解压缩,获得解压缩后的第一频域数据包括:所述无线数据解压缩装置根据所述第三压缩指示信息包括的所述第i组数据的组标识,还原所述第i组数据;所述无线数据解压缩装置根据所述第i组数据的组标识和所述k1组数据中每组数据的组标识,对所述N组数据进行重组,获得解压缩后的第一频域数据。
- 如权利要求14至18任意一项所述的方法,其特征在于,所述方法还包括:所述无线数据解压缩装置对所述解压缩后的第一频域数据进行反向离散傅里叶变换,获得第一时域数据;所述无线数据解压缩装置向第一设备或第二设备发送所述第一时域数据,所述第一设备是能够实现数字基带处理功能的设备,所述第二设备是能够实现射频功能的设备。
- 如权利要求14所述的方法,其特征在于,所述报文还包括第二频域数据,所述第二频域数据包括M组数据,所述报文未携带第j组数据,所述第j组数据未携带有效载荷,所述第j组数据是所述M组数据中的一个组数 据,M为大于或等于1的整数,所述指示信息还用于表示所述第j组数据未携带有效载荷;所述方法还包括:所述无线数据解压缩装置根据所述报文包括的所述指示信息,对所述报文进行解压缩,获得解压缩后的第二频域数据,所述解压缩后的第二频域数据包括所述第j组数据。
- 如权利要求20所述的方法,其特征在于,所述报文包括第一载荷、第二载荷和频域数据的数量,所述频域数据的数量为所述报文包括的载荷数量,所述第一载荷包括第一压缩指示信息和所述N组数据中携带有效载荷的k1组数据,所述第一压缩指示信息包括所述N组数据中的每组数据的组标识和所述N组数据中的每组数据的组标识对应的指示信息,所述N组数据中的每组数据的组标识对应的指示信息用于表示是否携带有效载荷,所述第i组数据的组标识对应的指示信息用于表示所述第i组数据未携带有效载荷,所述第二载荷包括第二压缩指示信息和所述M组数据中携带有效载荷的k2组数据,所述第二压缩指示信息包括所述M组数据中每组数据的组标识和所述M组数据中每组数据的组标识对应的指示信息,所述M组数据中的每组数据的组标识对应的指示信息用于表示是否携带有效载荷,所述第j组数据的组标识对应的指示信息用于表示所述第j组数据未携带有效载荷,所述第二频域数据包括所述M组数据,M为大于或等于1的整数,所述指示信息包括所述第二压缩指示信息和所述第一压缩指示信息,所述k1和所述k2均为大于或等于0的整数;所述无线数据解压缩装置根据所述报文包括的所述指示信息,对所述报文进行解压缩,获得解压缩后的第二频域数据包括:所述无线数据解压缩装置根据所述报文包括的所述第二压缩指示信息,从所述报文的第二载荷中获取所述k2组数据;所述无线数据解压缩装置根据所述第j组数据的组标识对应的指示信息,还原所述第j组数据;所述无线数据解压缩装置根据所述第j组数据的组标识和所述k2组数据中的每组数据的组标识,对所述M组数据进行重组,获得解压缩后的第二频域数据。
- 如权利要求21所述的方法,其特征在于,所述第一压缩指示信息为N比特的位图,所述N比特的位图的第i比特在所述N比特的位图中的位置为所述第i组数据的组标识,所述第i比特的数值为所述第i组数据的组标识对应的指示信息;所述第二压缩指示信息为M比特的位图,所述M比特的位图的第j比特在所述M比特的位图中的位置为所述第j组数据的组标识,所述第j比特的数值为所述第j组数据的组标识对应的指示信息。
- 一种无线数据压缩装置,其特征在于,所述装置包括:第一获得单元,用于获得第一频域数据,所述第一频域数据包括N组数据,N为大于或等于1的整数;第一确定单元,用于根据门限值和所述N组数据中的第i组数据,确定所述第i组数据是否携带有效载荷,所述第i组数据为所述N组数据中的任意一组数据;所述第一确定单元还用于确定所述第i组数据未携带有效载荷;第二获得单元,用于根据所述第i组数据,获得报文,所述报文为根据所述第一频域数据生成的报文,所述报文未携带所述第i组数据,所述报文包括指示信息,所述指示信息用于表示所述第i组数据未携带有效载荷;发送单元,用于发送所述报文。
- 如权利要求23所述的无线数据压缩装置,其特征在于,所述N组数据中的每组数据包括L1个数据,所述L1个数据中的每个数据对应一个子载波,L1为大于或等于1的整数,所述第一确定单元具体用于:确定所述L1个数据是否包括L2个数值大于所述门限值的数据,所述L2个数值大于所述门限值的数据为L2个数据的每个数据对应的子载波的数值大于所述门限值,所述L2个数据的每个数据对应的子载波的数值为所述L2个数 据的每个数据对应的子载波的矢量幅度的数值,L2小于或等于L1。
- 如权利要求23所述的无线数据压缩装置,其特征在于,所述N组数据中的每组数据包括L1个数据,所述L1个数据中的每个数据对应一个子载波,L1为大于或等于1的整数,所述第一确定单元具体用于:确定所述L1个数据对应的L1个子载波的数值的平均值是否大于所述门限值,所述L1个子载波中任意一个子载波的数值为所述任意一个子载波的矢量幅度的数值。
- 如权利要求23至25任意一项所述的无线数据压缩装置,其特征在于,所述第二获得单元具体用于:根据所述第i组数据,生成第一压缩指示信息,所述第一压缩指示信息包括所述N组数据中的每组数据的组标识和所述组标识对应的指示信息,所述组标识对应的指示信息用于表示所述组标识对应的组是否携带有效载荷,所述第i组数据的组标识对应的指示信息用于表示所述第i组数据未携带有效载荷,所述第一压缩指示信息为所述指示信息;根据所述第一压缩指示信息,对所述N组数据中携带有效载荷的k1组数据进行封装,生成所述报文,所述报文包括所述第一压缩指示信息和所述k1组数据,所述k1为大于或等于0的整数。
- 如权利要求26所述的无线数据压缩装置,其特征在于,所述第一压缩指示信息为N比特的位图,所述N比特的位图的第i比特在所述N比特的位图中的位置为所述第i组数据的组标识,所述第i比特的数值为所述第i组数据的组标识对应的指示信息。
- 如权利要求23至25任意一项所述的无线数据压缩装置,其特征在于,所述第二获得单元具体用于:根据所述第i组数据,生成第二压缩指示信息,所述第二压缩指示信息用于指示所述N组数据中携带有效载荷的组标识,所述第二压缩指示信息包括k1组数据中的每组数据的组标识,所述k1组数据为所述N组数据中携带有效载荷的组数据,所述k1为大于或等于0的整数,所述第二压缩指示信息为所 述指示信息;根据所述第二压缩指示信息,对所述k1组数据进行封装,生成所述报文,所述报文包括所述第二压缩指示信息和所述k1组数据。
- 如权利要求23至25任意一项所述的无线数据压缩装置,其特征在于,所述第二获得单元具体用于:根据所述第i组数据,生成第三压缩指示信息,所述第三压缩指示信息用于指示所述N组数据中未携带有效载荷的组标识,所述第三压缩指示信息包括所述第i组数据的组标识,所述第三压缩指示信息为所述指示信息;根据所述第三压缩指示信息,对所述N组数据中携带有效载荷的k1组数据进行封装,生成所述报文,所述报文包括所述第三压缩指示信息和所述k1组数据,所述k1为大于或等于0的整数。
- 如权利要求23至29任意一项所述的无线数据压缩装置,其特征在于,所述无线数据压缩装置还包括接收单元,所述接收单元用于接收第一时域数据,所述第一时域数据是从第一设备或第二设备获得的第一天线载波数据,所述第一设备是能够实现数字基带处理功能的设备,所述第二设备是能够实现射频功能的设备;所述无线数据压缩装置对所述第一时域数据进行离散傅里叶变换,获得所述第一频域数据。
- 如权利要求23至25任意一项所述的无线数据压缩装置,其特征在于,所述无线数据压缩装置还包括:第三获得单元,用于获得第二频域数据,所述第二频域数据包括M组数据,M为大于或等于1的整数;第二确定单元,用于根据门限值和所述M组数据中的第j组数据,确定所述第j组数据是否携带有效载荷,所述第j组数据为所述M组数据中的任意一组数据;所述第二确定单元还用于确定所述第j组数据未携带有效载荷。
- 如权利要求31所述的无线数据压缩装置,其特征在于,所述M组数 据中的每组数据包括L3个数据,所述L3个数据中的每个数据对应一个子载波,L3为大于或等于1的整数;所述第二确定单元具体用于:确定所述L3个数据是否包括L4个数值大于所述门限值的数据,所述L4个数值大于所述门限值的数据为L4个数据的每个数据对应的子载波的数值大于所述门限值,所述L4个数据的每个数据对应的子载波的数值为所述L4个数据的每个数据对应的子载波的矢量幅度的数值,L4小于或等于L3。
- 如权利要求31所述的无线数据压缩装置,其特征在于,所述M组数据中的每组数据包括L3个数据,所述L3个数据中的每个数据对应一个子载波,L3为大于或等于1的整数;所述第二确定单元具体用于:确定所述L3个数据对应的L3个子载波的数值的平均值是否大于所述预设的门限值,所述L3个子载波中任意一个子载波的数值为所述任意一个子载波的矢量幅度的数值。
- 如权利要求31至33任意一项所述的无线数据压缩装置,其特征在于,所述第二获得单元具体用于:根据所述第i组数据,生成第一压缩指示信息,所述第一压缩指示信息包括所述N组数据中的每组数据的组标识和所述N组数据中的每组数据的组标识对应的指示信息,所述N组数据中的每组数据的组标识对应的指示信息用于表示是否携带有效载荷,所述第i组数据的组标识对应的指示信息用于表示所述第i组数据未携带有效载荷;根据所述第j组数据,生成第二压缩指示信息,所述第二压缩指示信息包括所述M组数据中每组数据的组标识和所述M组数据中每组数据的组标识对应的指示信息,所述M组数据中的每组数据的组标识对应的指示信息用于表示是否携带有效载荷,所述第j组数据的组标识对应的指示信息用于表示所述第j组数据未携带有效载荷;根据所述第一压缩指示信息和所述第二压缩指示信息,对所述N组数据 中携带有效载荷的k1组数据和所述M组数据中携带有效载荷的k2组数据进行封装,生成所述报文,所述报文包括第一载荷、第二载荷和频域数据的数量,所述频域数据的数量为所述报文包括的载荷数量,所述第一载荷携带所述第一压缩指示信息和所述k1组数据,所述第二载荷携带所述第二压缩指示信息和所述k2组数据,所述指示信息包括所述第一压缩指示信息和所述第二压缩指示信息,所述k1为大于或等于0的整数,所述k2为大于或等于0的整数。
- 如权利要求34所述的无线数据压缩装置,其特征在于,所述第一压缩指示信息为N比特的位图,所述N比特的位图的第i比特在所述N比特的位图中的位置为所述第i组数据的组标识,所述第i比特的数值为所述第i组数据的组标识对应的指示信息;所述第二压缩指示信息为M比特的位图,所述M比特的位图的第j比特在所述M比特的位图中的位置为所述第j组数据的组标识,所述第j比特的数值为所述第j组数据的组标识对应的指示信息。
- 一种无线数据解压缩装置,其特征在于,所述无线数据解压缩装置包括:接收单元,用于接收报文,所述报文为根据第一频域数据生成的报文,所述第一频域数据包括N组数据,N为大于或等于1的整数,所述报文未携带第i组数据,所述第i组数据未携带有效载荷,所述第i组数据是所述N组数据中的一个组数据,所述报文包括指示信息,所述指示信息用于表示所述第i组数据未携带有效载荷;解压缩单元,用于根据所述报文包括的所述指示信息,对所述报文进行解压缩,获得解压缩后的第一频域数据,所述解压缩后的第一频域数据包括所述第i组数据。
- 如权利要求36所述的无线数据解压缩装置,其特征在于,所述报文包括第一压缩指示信息和所述N组数据中携带有效载荷的k1组数据,所述第一压缩指示信息为所述指示信息,所述第一压缩指示信息包括所述N组数据中的每组数据的组标识和所述组标识对应的指示信息,所述组标识对应的指 示信息用于表示所述组标识对应的组是否携带有效载荷,所述第i组数据的组标识对应的指示信息用于表示所述第i组数据未携带有效载荷,所述k1为大于或等于0的整数;所述解压缩单元具体用于:根据所述报文包括的所述第一压缩指示信息,从所述报文的载荷中获取所述k1组数据;根据所述第一压缩指示信息包括的所述第i组数据的组标识对应的指示信息,还原所述第i组数据;根据所述第i组数据的组标识和所述k1组数据中每组数据的组标识,对所述N组数据进行重组,获得解压缩后的第一频域数据。
- 如权利要求37所述的无线数据解压缩装置,其特征在于,所述第一压缩指示信息为N比特的位图,所述N比特的位图的第i比特在所述N比特的位图中的位置为所述第i组数据的组标识,所述第i比特的数值为所述第i组数据的组标识对应的指示信息。
- 如权利要求36所述的无线数据解压缩装置,其特征在于,所述报文包括第二压缩指示信息和所述N组数据中携带有效载荷的k1组数据,所述第二压缩指示信息为所述指示信息,所述第二压缩指示信息用于指示所述N组数据中携带有效载荷的组标识,所述第二压缩指示信息包括所述k1组数据中的每组数据的组标识,所述k1为大于或等于0的整数;所述解压缩单元具体用于:根据所述报文包括的所述第二压缩指示信息,从所述报文的载荷中获取所述k1组数据;根据N的数值和所述k1组数据中的每组数据的组标识,还原所述第i组数据;根据所述第i组数据的组标识和所述k1组数据中每组数据的组标识,对所述N组数据进行重组,获得解压缩后的第一频域数据。
- 如权利要求36所述的无线数据解压缩装置,其特征在于,所述报文 包括第三压缩指示信息和所述N组数据中携带有效载荷的k1组数据,所述第三压缩指示信息为所述指示信息,所述第三压缩指示信息用于指示所述N组数据中未携带有效载荷的组标识,所述第三压缩指示信息包括所述第i组数据的组标识,所述k1为大于或等于0的整数;所述解压缩单元具体用于:根据所述第三压缩指示信息包括的所述第i组数据的组标识,还原所述第i组数据;根据所述第i组数据的组标识和所述k1组数据中每组数据的组标识,对所述N组数据进行重组,获得解压缩后的第一频域数据。
- 如权利要求36至40任意一项所述的无线数据解压缩装置,其特征在于,所述无线数据解压缩装置还包括:获得单元,用于对所述解压缩后的第一频域数据进行反向离散傅里叶变换,获得第一时域数据;发送单元,用于向第一设备或第二设备发送所述第一时域数据,所述第一设备是能够实现数字基带处理功能的设备,所述第二设备是能够实现射频功能的设备。
- 如权利要求36所述的无线数据解压缩装置,其特征在于,所述报文还包括第二频域数据,所述第二频域数据包括M组数据,所述报文未携带第j组数据,所述第j组数据未携带有效载荷,所述第j组数据是所述M组数据中的一个组数据,M为大于或等于1的整数,所述指示信息还用于表示所述第j组数据未携带有效载荷,所述解压缩单元还用于:根据所述报文包括的所述指示信息,对所述报文进行解压缩,获得解压缩后的第二频域数据,所述解压缩后的第二频域数据包括所述第j组数据。
- 如权利要求42所述的无线数据解压缩装置,其特征在于,所述报文包括第一载荷、第二载荷和频域数据的数量,所述频域数据的数量为所述报文包括的载荷数量,所述第一载荷包括第一压缩指示信息和所述N组数据中携带有效载荷的k1组数据,所述第一压缩指示信息包括所述N组数据中的每 组数据的组标识和所述N组数据中的每组数据的组标识对应的指示信息,所述N组数据中的每组数据的组标识对应的指示信息用于表示是否携带有效载荷,所述第i组数据的组标识对应的指示信息用于表示所述第i组数据未携带有效载荷,所述第二载荷包括第二压缩指示信息和所述M组数据中携带有效载荷的k2组数据,所述第二压缩指示信息包括所述M组数据中每组数据的组标识和所述M组数据中每组数据的组标识对应的指示信息,所述M组数据中的每组数据的组标识对应的指示信息用于表示是否携带有效载荷,所述第j组数据的组标识对应的指示信息用于表示所述第j组数据未携带有效载荷,所述第二频域数据包括所述M组数据,M为大于或等于1的整数,所述指示信息包括所述第二压缩指示信息和所述第一压缩指示信息,所述k1和所述k2均为大于或等于0的整数;所述解压缩单元具体用于:根据所述报文包括的所述第二压缩指示信息,从所述报文的第二载荷中获取所述k2组数据;根据所述第j组数据的组标识对应的指示信息,还原所述第j组数据;根据所述第j组数据的组标识和所述k2组数据中的每组数据的组标识,对所述M组数据进行重组,获得解压缩后的第二频域数据。
- 如权利要求43所述的无线数据解压缩装置,其特征在于,所述第一压缩指示信息为N比特的位图,所述N比特的位图的第i比特在所述N比特的位图中的位置为所述第i组数据的组标识,所述第i比特的数值为所述第i组数据的组标识对应的指示信息;所述第二压缩指示信息为M比特的位图,所述M比特的位图的第j比特在所述M比特的位图中的位置为所述第j组数据的组标识,所述第j比特的数值为所述第j组数据的组标识对应的指示信息。
- 一种用于传输无线数据的系统,其特征在于,所述系统包括无线数据压缩装置和无线数据解压缩装置,其中所述无线数据压缩装置为权利要求23至35中任意一项所述的无线数据压缩装置;所述无线数据解压缩装置为权利要求36至44中任意一项所述的无线数据解压缩装置。
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