CN112491494B - Code determining method, device, equipment and storage medium - Google Patents

Code determining method, device, equipment and storage medium Download PDF

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Publication number
CN112491494B
CN112491494B CN201910860309.0A CN201910860309A CN112491494B CN 112491494 B CN112491494 B CN 112491494B CN 201910860309 A CN201910860309 A CN 201910860309A CN 112491494 B CN112491494 B CN 112491494B
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transmitted
data packet
ovxdm
scheme
determining
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CN112491494A (en
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金婧
王启星
刘光毅
夏亮
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China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
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China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0059—Convolutional codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/24—Traffic characterised by specific attributes, e.g. priority or QoS
    • H04L47/2408—Traffic characterised by specific attributes, e.g. priority or QoS for supporting different services, e.g. a differentiated services [DiffServ] type of service
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/29—Flow control; Congestion control using a combination of thresholds
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/38—Flow control; Congestion control by adapting coding or compression rate
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/06—Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/318—Received signal strength
    • H04B17/327—Received signal code power [RSCP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/336—Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]

Abstract

The invention discloses a code determining method, a device, equipment and a storage medium. The method comprises the following steps: judging whether an overlapping multiplexing (OVXDM) scheme is adopted according to the attribute of the data packet to be transmitted; the attributes include at least one of: size, type; or, according to the channel related parameters, judging whether to adopt the OVXDM scheme.

Description

Code determining method, device, equipment and storage medium
Technical Field
The present invention relates to the field of wireless communications, and in particular, to a method, apparatus, device, and storage medium for determining a code.
Background
In digital communication systems, in order to improve frequency efficiency, data to be transmitted may be encoded using an overlap multiplexing (OVXDM, overlapped X Division Multiplexing) technique. OVXDM is a novel coding technique that forms high spectral efficiency, no coding residue, high coding gain by shift overlapping of data weighted multiplexing waveforms in the X domain; the X domain includes a time domain, a frequency domain, a mixed domain, or the like. For example, performing shift overlap in the time domain may form OVTDM; shift overlapping is realized in the frequency domain, so that OVFDM can be formed; shift overlap is implemented in the hybrid domain, and OVHDM can be formed.
In practical application, the transmitting end device may implement OVXDM by using a waveform convolutional coding model, and assume that the overlapping number is K, that is, K shift registers, and when the transmission data does not pass through all K shift registers, the receiving end may cause erroneous judgment. In order to avoid the occurrence of the situation, the data to be transmitted can be bit filled, but a certain resource waste is caused, and the resource utilization rate is reduced. In addition, when the signal-to-noise ratio is low, compared with the traditional modulation and coding technology, the advantages of the spectrum efficiency of the OVXDM technology are not only insignificant, but also the decoding complexity of the receiving end equipment is greatly improved.
Based on this, how to select OVXDM at the time of data transmission becomes a technical problem to be solved.
Disclosure of Invention
In view of this, it is desirable to provide a method, apparatus, device and storage medium for determining encoding.
The technical scheme of the embodiment of the invention is realized as follows:
the embodiment of the invention provides a code determining method which is applied to a transmitting terminal device, and comprises the following steps:
judging whether an OVXDM scheme is adopted according to the attribute of the data packet to be transmitted; the attributes include at least one of: size, type;
And/or the number of the groups of groups,
and judging whether to adopt an OVXDM scheme according to the channel related parameters.
In the above scheme, before judging whether to adopt the OVXDM scheme, the method further includes:
acquiring the attribute of a data packet to be transmitted;
and/or the number of the groups of groups,
channel related parameters are obtained.
In the above scheme, the determining whether to adopt the OVXDM scheme according to the attribute of the data packet to be transmitted includes:
judging whether the size of a data packet to be transmitted is larger than a first preset threshold value or not; when the size of the data packet to be transmitted is determined to be larger than a first preset threshold value, determining to adopt an OVXDM scheme;
and/or the number of the groups of groups,
judging whether the type of the data packet to be transmitted is matched with a preset type; and when the type of the data packet to be transmitted is determined to be matched with the preset type, determining to adopt an OVXDM scheme.
In the above scheme, the determining whether to adopt the OVXDM scheme according to the channel related parameter includes:
judging whether the obtained channel related parameter value is larger than a second preset threshold value or not;
and when the channel related parameter value is determined to be larger than a second preset threshold value, determining to adopt an OVXDM scheme.
In the above solution, the obtaining the channel related parameter includes:
acquiring the channel related parameters from receiving end equipment;
Or alternatively, the process may be performed,
and determining the channel related parameters by utilizing the reciprocity of the uplink and downlink channels.
An embodiment of the present invention provides a code determining apparatus, applied to a transmitting end device, including:
a first determining unit, configured to determine whether to use an OVXDM scheme according to an attribute of a data packet to be transmitted; the attributes include at least one of: size, type;
and/or the number of the groups of groups,
and the second determining unit is used for judging whether to adopt the OVXDM scheme according to the channel related parameters.
In the above scheme, the device further includes:
the first acquisition unit is used for acquiring the attribute of the data packet to be transmitted;
and/or the number of the groups of groups,
and the second acquisition unit is used for acquiring the channel related parameters.
In the above aspect, the first determining unit is specifically configured to: judging whether the size of a data packet to be transmitted is larger than a first preset threshold value or not; when the size of the data packet to be transmitted is determined to be larger than a first preset threshold value, determining to adopt an OVXDM scheme; and/or judging whether the type of the data packet to be transmitted is matched with a preset type; and when the type of the data packet to be transmitted is determined to be matched with the preset type, determining to adopt an OVXDM scheme.
In the above aspect, the second determining unit is specifically configured to: judging whether the channel related parameter value is larger than a second preset threshold value or not; and when the channel related parameter value is determined to be larger than a second preset threshold value, determining to adopt an OVXDM scheme.
In the above aspect, the second obtaining unit is specifically configured to: acquiring the channel related parameters from receiving end equipment; or determining the channel related parameters by utilizing the reciprocity of the uplink and downlink channels.
The embodiment of the invention provides a transmitting end device, which comprises:
a processor, configured to determine whether to use an OVXDM scheme according to an attribute of a data packet to be transmitted; the attributes include at least one of: size, type; and/or judging whether to adopt the OVXDM scheme according to the channel related parameters.
In the above solution, the processor is specifically configured to: judging whether the size of a data packet to be transmitted is larger than a first preset threshold value or not; when the size of the data packet to be transmitted is determined to be larger than a first preset threshold value, determining to adopt an OVXDM scheme; and/or judging whether the type of the data packet to be transmitted is matched with a preset type; and when the type of the data packet to be transmitted is determined to be matched with the preset type, determining to adopt an OVXDM scheme.
In the above solution, the processor is specifically configured to: judging whether the channel related parameter value is larger than a second preset threshold value or not; and when the channel related parameter value is determined to be larger than a second preset threshold value, determining to adopt an OVXDM scheme.
In the above solution, the transmitting device further includes: the communication interface is used for acquiring the channel related parameters from the receiving end equipment; or determining the channel related parameters by utilizing the reciprocity of the uplink and downlink channels.
The embodiment of the invention provides a transmitting terminal device, which comprises: a processor and a memory for storing a computer program capable of running on the processor,
wherein the processor is configured to execute the steps of any of the methods described above when the computer program is run.
An embodiment of the present invention provides a storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of any of the methods described above.
The code determining method, the device, the equipment and the storage medium provided by the embodiment of the invention judge whether an OVXDM scheme is adopted according to the attribute of the data packet to be transmitted; the attributes include at least one of: size, type; and/or judging whether to adopt the OVXDM scheme according to the channel related parameters. By adopting the technical scheme of the embodiment of the invention, whether the OVXDM scheme is adopted can be judged according to the attribute of the data packet to be transmitted, and/or whether the OVXDM scheme is adopted or not can be judged according to the relevant parameters of the channel, so that the resource waste can be avoided, the resource utilization rate can be further improved, and meanwhile, the decoding complexity of a receiving end can be reduced.
Drawings
FIG. 1 is a schematic diagram of an implementation of OVTDM in the related art;
fig. 2 is a schematic diagram of an implementation of OVXDM using a waveform convolutional coding model in the related art;
fig. 3 is a schematic diagram of spectrum efficiency of OVXDM in the related art;
FIG. 4 is a schematic diagram of an implementation flow of a code determination method according to an embodiment of the present invention;
FIG. 5 is a second schematic diagram of an implementation flow of the code determining method according to the embodiment of the present invention;
FIG. 6 is a third schematic diagram of an implementation flow of a code determination method according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of the constitution of a code determining apparatus according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of a second embodiment of a code determining apparatus;
FIG. 9 is a schematic diagram of a third embodiment of a code determining apparatus;
fig. 10 is a schematic diagram of a composition structure of a transmitting device according to an embodiment of the present invention.
Detailed Description
In the related art, in a digital communication system, in order to improve frequency efficiency, data to be transmitted may be encoded using an overlap multiplexing OVXDM technique.OVXDM is a novel coding technique that forms high spectral efficiency, no coding residue, high coding gain by shift overlapping of data weighted multiplexing waveforms in the X domain; the X domain includes a time domain, a frequency domain, a mixed domain, or the like. For example, implementing shift overlap in the time domain, OVTDM may be formed as shown in fig. 1; shift overlapping is realized in the frequency domain, so that OVFDM can be formed; shift overlap is implemented in the hybrid domain, and OVHDM can be formed. In practical application, as shown in fig. 2, OVXDM may be implemented by using a waveform convolutional coding model, and the transmitting end device may be as follows:
Figure SMS_1
Calculating the complex envelope waveform of the transmitted signal>
Figure SMS_2
Wherein (1)>
Figure SMS_3
And the envelope waveform obtained by shifting the initial envelope waveform in the time domain according to the preset interval is represented. Assuming that the overlapping number is K, that is, K shift registers, when the transmission data does not pass through all K shift registers, in order to avoid the occurrence of erroneous judgment caused by decoding the data at the receiving end, the data to be transmitted may be bit-filled, but a certain resource waste may be caused, and the resource utilization rate is reduced. In addition, as shown in fig. 3, when the signal-to-noise ratio is low, compared with the conventional modulation and coding technology, the spectrum efficiency of the OVXDM technology is not obvious, but the decoding complexity of the receiving end is greatly improved; at higher signal-to-noise ratios, the spectral efficiency advantage of OVXDM techniques is more pronounced than conventional modulation and coding techniques.
How to select OVXDM during data transmission in the above manner is a technical problem to be solved.
Based on this, in the embodiment of the present invention, whether to adopt the OVXDM scheme is determined according to the attribute of the data packet to be transmitted; the attributes include at least one of: size, type; and/or judging whether to adopt the OVXDM scheme according to the channel related parameters.
The present invention will be described in further detail with reference to the accompanying drawings and examples.
An embodiment of the present invention provides a method for determining a code, which is applied to a transmitting end device, as shown in fig. 4, and includes:
step 401: acquiring the attribute of a data packet to be transmitted; the attributes include at least one of: size, type.
Here, when the transmitting end device is a base station, the receiving end device may be a terminal, and the data packet to be transmitted may refer to a data packet to be transmitted by the base station to the terminal. When the transmitting end device is a terminal, the receiving end device may be a base station, and the data packet to be transmitted may refer to a data packet to be transmitted by the terminal to the base station.
Here, the type of the data packet to be transmitted may include one of the following:
file transfer protocol (FTP, file Transfer Protocol) type;
a streaming media type;
a web browsing service type;
communication traffic type.
Wherein, the type of the data packet to be transmitted, such as FTP type, can be determined according to the transmission protocol of the data packet; the type of the data packet to be transmitted, such as the streaming media type, can be determined according to the processing mode of the data packet; the type of the data packet to be transmitted, such as a web browsing service type and a communication service type, can be determined according to the service to which the data packet belongs.
Step 402: and judging whether an OVXDM scheme is adopted according to the attribute of the data packet to be transmitted.
In practical application, it is assumed that the binary system is used to represent the data packet to be transmitted, if the binary bit number is small, the proportion of bits filled to avoid decoding misjudgment is large, the signaling efficiency of the system is reduced, at this time, the advantage of improving the spectrum efficiency by OVXDM is not obvious, and the decoding complexity of the receiving end is increased. Therefore, when the data packet to be transmitted is small, the OVXDM scheme is not adopted; when the data packet to be transmitted is large, an OVXDM scheme is adopted.
Based on this, in an embodiment, the determining whether to adopt the OVXDM scheme according to the attribute of the data packet to be transmitted includes: and judging whether an OVXDM scheme is adopted according to the size of the data packet to be transmitted.
Here, the determining whether to adopt the OVXDM scheme according to the size of the data packet to be transmitted includes: judging whether the size of the data packet to be transmitted is larger than a first preset threshold value or not; when the size of the data packet to be transmitted is determined to be larger than a first preset threshold value, determining to adopt an OVXDM scheme; and when the size of the data packet to be transmitted is smaller than or equal to a first preset threshold value, determining to adopt a traditional modulation coding scheme.
Here, the conventional modulation coding scheme may include at least one of:
quadrature Amplitude Modulation (QAM);
phase Shift Keying (PSK);
parallel concatenated convolutional codes (Turbo);
low density check code (LDPC).
The first preset threshold value can be set according to actual conditions.
In practical application, it may also be determined whether to use OVXDM scheme according to the type of the data packet to be transmitted.
Based on this, in an embodiment, the determining whether to adopt the OVXDM scheme according to the attribute of the data packet to be transmitted includes: judging whether an OVXDM scheme is adopted according to the type of the data packet to be transmitted;
specifically, judging whether the type of the data packet to be transmitted is matched with a preset type; and when the type of the data packet to be transmitted is determined to be matched with the preset type, determining to adopt an OVXDM scheme. And when the type of the data packet to be transmitted is not matched with the preset type, determining to adopt a traditional modulation coding scheme.
Here, when it is determined that the OVXDM scheme is adopted, the type of the data packet to be transmitted may be one of: FTP type, streaming media type, web browsing service type; when the conventional modulation and coding scheme is determined to be adopted, the possible type of the data packet to be transmitted is a communication service type.
Here, the conventional modulation coding scheme may include one of: quadrature Amplitude Modulation (QAM); phase Shift Keying (PSK).
In practical application, it may also be determined whether to use OVXDM scheme according to the size and type of the data packet to be transmitted.
Based on this, in an embodiment, the determining whether to adopt the OVXDM scheme according to the attribute of the data packet to be transmitted includes: and judging whether an OVXDM scheme is adopted according to the size and the type of the data packet to be transmitted.
Here, when the size of the data packet to be transmitted is determined to be larger than a first preset threshold value and the type is matched with the preset type, determining to adopt an OVXDM scheme; and when the size of the data packet to be transmitted is smaller than or equal to a first preset threshold value and the type is not matched with the preset type, determining to adopt the traditional modulation coding scheme.
By adopting the technical scheme of the embodiment of the invention, when the attribute of the data packet to be transmitted meets the preset condition, the OVXDM scheme is determined to be adopted, so that bit filling of the data packet to be transmitted is not needed, further, resource waste can be avoided, and the resource utilization rate is improved.
An embodiment of the present invention provides a method for determining a code, which is applied to a transmitting end device, as shown in fig. 5, and includes:
Step 501: channel related parameters are obtained.
Here, when the transmitting end device is a base station, the receiving end device may be a terminal, and the channel-related parameter may refer to a downlink channel-related parameter. When the transmitting end device is a terminal, the receiving end device may be a base station, and the channel-related parameter may refer to an uplink channel-related parameter.
Here, the channel-related parameter may include one of:
channel bandwidth;
channel quality;
channel correlation;
channel rank.
Wherein, the channel correlation may refer to a spatial correlation measured in an arbitrary direction of a channel; the channel rank may characterize the capacity of the channel.
Here, the channel quality may be characterized by one of the following parameters:
signal to interference plus noise ratio (SINR, signal to Interference plus Noise Ratio);
channel quality indicator (CQI, channel Quality Indicator);
reference signal received power (RSRP, reference Signal Receiving Power);
reference signal received quality (RSRQ, reference Signal Receiving Quality)
In practical application, the sending end device may acquire the channel related parameters from the receiving end device; or, using the reciprocity of the uplink and downlink channels to obtain the relevant parameters of the channels.
Based on this, in an embodiment, the acquiring the channel related parameters includes: acquiring the channel related parameters from receiving end equipment; or determining the channel related parameters by utilizing the reciprocity of the uplink and downlink channels.
Here, for downlink, when the transmitting end device is a base station and the receiving end device is a terminal, the base station may receive relevant parameters of a downlink channel reported by the terminal; or, the reciprocity of the uplink and downlink channels is utilized to obtain the relevant parameters of the downlink channels through the relevant parameters of the uplink channels. For the uplink, when the transmitting end equipment is a terminal and the receiving end equipment is a base station, the terminal can acquire relevant parameters of an uplink channel indicated by the base station; or, the reciprocity of the uplink and downlink channels is utilized to obtain the relevant parameters of the uplink channel through the relevant parameters of the downlink channel.
Step 502: and judging whether to adopt an OVXDM scheme according to the acquired channel related parameters.
In practical application, if the OVXDM scheme is adopted to encode the data to be transmitted when the channel-related parameter value is low, the decoding complexity of the receiving end device may be greatly improved, so that the OVXDM scheme is not adopted when the channel-related parameter value is low; when the channel-related parameter value is high, an OVXDM scheme is adopted.
Based on this, in an embodiment, the determining whether to adopt the OVXDM scheme according to the acquired channel related parameter includes: judging whether the obtained channel related parameter value is larger than a second preset threshold value or not; and when the channel related parameter value is determined to be larger than a second preset threshold value, determining to adopt an OVXDM scheme.
Here, when it is determined that the channel-related parameter value is less than or equal to the second preset threshold value, it is determined that the OVXDM scheme is not employed, but a conventional modulation coding scheme is employed.
Here, the conventional modulation coding scheme may include at least one of:
quadrature Amplitude Modulation (QAM);
phase Shift Keying (PSK);
parallel concatenated convolutional codes (Turbo);
low density check code (LDPC).
Here, for four parameters of the channel, four second preset thresholds with different threshold values may be set.
For example, when the bandwidth of the channel is greater than a threshold 1, determining to employ an OVXDM scheme, otherwise, employing a legacy modulation coding scheme; when the quality of the channel is greater than a threshold 1, determining to adopt an OVXDM scheme, otherwise, adopting a traditional modulation coding scheme; when the rank of the channel is greater than a threshold 3, determining to adopt an OVXDM scheme, otherwise adopting a traditional modulation coding scheme; when the correlation of the channel is greater than a threshold 4, it is determined that the OVXDM scheme is adopted, otherwise, a conventional modulation coding scheme is adopted.
By adopting the technical scheme of the embodiment of the invention, when the channel related parameters meet the preset conditions, the OVXDM scheme is determined to be adopted, so that the advantages of the OVXDM scheme can be exerted, and the decoding complexity of the receiving end equipment can be reduced to a large extent.
An embodiment of the present invention provides a method for determining a code, which is applied to a transmitting end device, as shown in fig. 6, and includes:
step 601: acquiring the attribute and the channel related parameter of a data packet to be transmitted; the attributes include at least one of: size, type.
Here, when the transmitting end device is a base station, the receiving end device may be a terminal, and the data packet to be transmitted may refer to a data packet to be transmitted by the base station to the terminal. When the transmitting end device is a terminal, the receiving end device may be a base station, and the data packet to be transmitted may refer to a data packet to be transmitted by the terminal to the base station.
Here, when the transmitting end device is a base station, the receiving end device may be a terminal, and the channel-related parameter may refer to a downlink channel-related parameter. When the transmitting end device is a terminal, the receiving end device may be a base station, and the channel-related parameter may refer to an uplink channel-related parameter.
Here, the type of the data packet to be transmitted may include one of the following:
FTP type;
a streaming media type;
a web browsing service type;
communication traffic type.
Wherein, the type of the data packet to be transmitted, such as FTP type, can be determined according to the transmission protocol of the data packet; the type of the data packet to be transmitted, such as the streaming media type, can be determined according to the processing mode of the data packet; the type of the data packet to be transmitted, such as a web browsing service type and a communication service type, can be determined according to the service to which the data packet belongs.
Here, the channel-related parameter may include one of:
channel bandwidth;
channel quality;
channel correlation;
channel rank.
Wherein, the channel correlation may refer to a spatial correlation measured in an arbitrary direction of a channel; the method comprises the steps of carrying out a first treatment on the surface of the The channel rank may characterize the capacity of the channel.
Here, the channel quality may be characterized by one of the following parameters:
signal to interference plus noise ratio (SINR, signal to Interference plus Noise Ratio);
channel quality indicator (CQI, channel Quality Indicator);
reference signal received power (RSRP, reference Signal Receiving Power);
Reference signal received quality (RSRQ, reference Signal Receiving Quality)
In practical application, the sending end device may acquire the channel related parameters from the receiving end device; or, using the reciprocity of the uplink and downlink channels to obtain the relevant parameters of the channels.
Based on this, in an embodiment, the acquiring the channel related parameters includes: acquiring the channel related parameters from receiving end equipment; or determining the channel related parameters by utilizing the reciprocity of the uplink and downlink channels.
Here, for downlink, when the transmitting end device is a base station and the receiving end device is a terminal, the base station may receive relevant parameters of a downlink channel reported by the terminal; or, the reciprocity of the uplink and downlink channels is utilized to obtain the relevant parameters of the downlink channels through the relevant parameters of the uplink channels. For the uplink, when the transmitting end equipment is a terminal and the receiving end equipment is a base station, the terminal can utilize relevant parameters of an uplink channel indicated by the base station; or, the reciprocity of the uplink and downlink channels is utilized to obtain the relevant parameters of the uplink channel through the relevant parameters of the downlink channel.
Step 602: and judging whether an OVXDM scheme is adopted according to the attribute of the data packet to be transmitted and the channel related parameters.
In practical application, it is assumed that the binary system is used to represent the data packet to be transmitted, if the binary bit number is small, the proportion of bits filled to avoid decoding misjudgment is large, the signaling efficiency of the system is reduced, at this time, the advantage of improving the spectrum efficiency by OVXDM is not obvious, and the decoding complexity of the receiving end is increased. Therefore, when a data packet to be transmitted is large and a channel-related parameter value is high, the OVXDM scheme is adopted.
Based on this, in an embodiment, the determining whether to adopt the OVXDM scheme according to the attribute of the data packet to be transmitted and the channel related parameter includes: and judging whether an OVXDM scheme is adopted according to the size of the data packet to be transmitted and the related parameters of the channel.
Specifically, judging whether the size of the data packet to be transmitted is larger than a first preset threshold value, and judging whether the obtained channel related parameter value is larger than a second preset threshold value; when the size of the data packet to be transmitted is determined to be larger than a first preset threshold value and the channel related parameter value is determined to be larger than a second preset threshold value, determining to adopt an OVXDM scheme; otherwise, it is determined to employ a conventional modulation coding scheme.
Here, the conventional modulation coding scheme may include at least one of:
Quadrature Amplitude Modulation (QAM);
phase Shift Keying (PSK);
parallel concatenated convolutional codes (Turbo);
low density check code (LDPC).
The first preset threshold value can be set according to actual conditions.
In practical application, the size of the data packet to be transmitted can be determined according to the type of the data packet to be transmitted, so that whether an OVXDM scheme is adopted can be determined according to the type of the data packet to be transmitted and the channel related parameters.
Based on this, in an embodiment, the determining whether to adopt the OVXDM scheme according to the attribute of the data packet to be transmitted and the channel related parameter includes: and judging whether an OVXDM scheme is adopted according to the type of the data packet to be transmitted and the channel related parameters.
Specifically, judging whether the type of the data packet to be transmitted is matched with a preset type, and judging whether the obtained channel related parameter value is larger than a second preset threshold value; when the type of the data packet to be transmitted is matched with the preset type and the channel related parameter value is larger than a second preset threshold value, determining to adopt an OVXDM scheme; otherwise, it is determined to employ a conventional modulation coding scheme.
Here, the preset type may include one of: quadrature Amplitude Modulation (QAM); phase Shift Keying (PSK); parallel concatenated convolutional codes (Turbo).
For example, when it is determined that the OVXDM scheme is adopted, the type of the data packet to be transmitted may be one of the following: FTP type, streaming media type, web browsing service type; when the conventional modulation and coding scheme is determined to be adopted, the possible type of the data packet to be transmitted is a communication service type.
In practical application, it may also be determined whether to use OVXDM scheme according to the size and type of the data packet to be transmitted.
Based on this, in an embodiment, the determining, according to the attribute of the data packet to be transmitted, and determining whether the obtained channel related parameter value is greater than a second preset threshold, and determining whether to adopt an OVXDM scheme includes: and judging whether an OVXDM scheme is adopted according to the size, the type and the channel related parameters of the data packet to be transmitted.
Here, when the size of the data packet to be transmitted is determined to be larger than the first preset threshold type and matched with the preset type, and the channel related parameter value is determined to be larger than the second preset threshold, determining to adopt an OVXDM scheme; otherwise, it is determined to employ a conventional modulation coding scheme.
By adopting the technical scheme of the embodiment of the invention, when the attribute of the data packet to be transmitted and the related parameters of the channel meet the preset conditions, the OVXDM scheme is determined to be adopted, so that bit filling of the data to be transmitted is not needed, further, resource waste can be avoided, and the resource utilization rate is improved. Meanwhile, the advantages of the OVXDM scheme can be exerted, and the decoding complexity of the receiving end equipment can be reduced and greatly improved. In addition, the advantages of transmission coding and OVXDM can be combined, and a compromise can be made between the spectral efficiency and the decoding complexity of the receiving end device.
In order to implement the method of the embodiment of the present invention, the embodiment of the present invention further provides an encoding determining apparatus, which is disposed on a transmitting end device, as shown in fig. 7, and the apparatus includes:
a first acquiring unit 71, configured to acquire an attribute of a data packet to be transmitted;
a first determining unit 72, configured to determine whether to use an OVXDM scheme according to the attribute of the data packet to be transmitted; the attributes include at least one of: size, type;
here, when the transmitting end device is a base station, the receiving end device may be a terminal, and the data packet to be transmitted may refer to a data packet to be transmitted by the base station to the terminal. When the transmitting end device is a terminal, the receiving end device may be a base station, and the data packet to be transmitted may refer to a data packet to be transmitted by the terminal to the base station.
Here, the type of the data packet to be transmitted may include one of the following:
FTP type;
a streaming media type;
a web browsing service type;
communication traffic type.
Wherein, the type of the data packet to be transmitted, such as FTP type, can be determined according to the transmission protocol of the data packet; the type of the data packet to be transmitted, such as the streaming media type, can be determined according to the processing mode of the data packet; the type of the data packet to be transmitted, such as a web browsing service type and a communication service type, can be determined according to the service to which the data packet belongs.
In practical application, it is assumed that the binary system is used to represent the data packet to be transmitted, if the binary bit number is small, the proportion of bits filled to avoid decoding misjudgment is large, the signaling efficiency of the system is reduced, at this time, the advantage of improving the spectrum efficiency by OVXDM is not obvious, and the decoding complexity of the receiving end is increased. Therefore, when the data packet to be transmitted is small, the OVXDM scheme is not adopted; when the data packet to be transmitted is large, an OVXDM scheme is adopted.
Based on this, in an embodiment, the first determining unit 72 is specifically configured to: judging whether an OVXDM scheme is adopted according to the size of the data packet to be transmitted; and/or judging whether to adopt an OVXDM scheme according to the type of the data packet to be transmitted.
Specifically, judging whether the size of the data packet to be transmitted is larger than a first preset threshold value or not; when the size of the data packet to be transmitted is determined to be larger than a first preset threshold value, determining to adopt an OVXDM scheme; and when the size of the data packet to be transmitted is smaller than or equal to a first preset threshold value, determining to adopt a traditional modulation coding scheme.
In practical application, the size of the data packet to be transmitted can be determined according to the type of the data packet to be transmitted, so that whether to adopt an OVXDM scheme can be determined according to the type of the data packet to be transmitted.
Based on this, in an embodiment, the first determining unit 72 is specifically configured to: judging whether the type of the data packet to be transmitted is matched with a preset type; and when the type of the data packet to be transmitted is determined to be matched with the preset type, determining to adopt an OVXDM scheme.
Specifically, judging whether the type of the data packet to be transmitted is matched with a preset type; and when the type of the data packet to be transmitted is determined to be matched with the preset type, determining to adopt an OVXDM scheme. And when the type of the data packet to be transmitted is not matched with the preset type, determining to adopt a traditional modulation coding scheme.
In practical application, it may also be determined whether to use OVXDM scheme according to the size and type of the data packet to be transmitted.
Based on this, in an embodiment, the first determining unit 72 is specifically configured to: and judging whether an OVXDM scheme is adopted according to the size and the type of the data packet to be transmitted.
Here, when the size of the data packet to be transmitted is determined to be larger than a first preset threshold value and the type is matched with the preset type, determining to adopt an OVXDM scheme; and when the size of the data packet to be transmitted is smaller than or equal to a first preset threshold value and the type is not matched with the preset type, determining to adopt the traditional modulation coding scheme.
In practical applications, the first determining unit 72 may be implemented by a processor in the encoding determining device, and the first obtaining unit 71 may be implemented by a communication interface in the encoding determining device.
In order to implement the method of the embodiment of the present invention, the embodiment of the present invention further provides an encoding determining apparatus, which is disposed on a transmitting end device, as shown in fig. 8, and the apparatus includes:
a second acquiring unit 81 for acquiring channel related parameters;
a second determining unit 82, configured to determine whether to use the OVXDM scheme according to the acquired channel related parameter.
Here, when the transmitting end device is a base station, the receiving end device may be a terminal, and the channel-related parameter may refer to a downlink channel-related parameter. When the transmitting end device is a terminal, the receiving end device may be a base station, and the channel-related parameter may refer to an uplink channel-related parameter.
Here, the channel-related parameter may include one of:
channel bandwidth;
channel quality;
channel correlation;
channel rank.
Wherein, the channel correlation may refer to a spatial correlation measured in an arbitrary direction of a channel; the method comprises the steps of carrying out a first treatment on the surface of the The channel rank may characterize the capacity of the channel.
In practical application, the sending end device may acquire the channel related parameters from the receiving end device; or, using the reciprocity of the uplink and downlink channels to obtain the relevant parameters of the channels.
Based on this, in an embodiment, the second obtaining unit 81 is specifically configured to: acquiring the channel related parameters from receiving end equipment; or determining the channel related parameters by utilizing the reciprocity of the uplink and downlink channels.
Here, for downlink, when the transmitting end device is a base station and the receiving end device is a terminal, the base station may receive relevant parameters of a downlink channel reported by the terminal; or, the reciprocity of the uplink and downlink channels is utilized to obtain the relevant parameters of the downlink channels through the relevant parameters of the uplink channels. For the uplink, when the transmitting end equipment is a terminal and the receiving end equipment is a base station, the terminal can utilize relevant parameters of an uplink channel indicated by the base station; or, the reciprocity of the uplink and downlink channels is utilized to obtain the relevant parameters of the uplink channel through the relevant parameters of the downlink channel.
In practical application, if the OVXDM scheme is adopted to encode the data to be transmitted when the channel-related parameter value is low, the decoding complexity of the receiving end device may be greatly improved, so that the OVXDM scheme is not adopted when the channel-related parameter value is low; when the channel-related parameter value is high, an OVXDM scheme is adopted.
Based on this, in an embodiment, the second determining unit 82 is specifically configured to: judging whether the obtained channel related parameter value is larger than a second preset threshold value or not; and when the channel related parameter value is determined to be larger than a second preset threshold value, determining to adopt an OVXDM scheme.
Here, when it is determined that the channel-related parameter value is less than or equal to the second preset threshold value, it is determined that the OVXDM scheme is not employed, but a conventional modulation coding scheme is employed.
In practical application, the second determining unit 82 may be implemented by a processor in the encoding determining device, and the second obtaining unit 81 may be implemented by a communication interface in the encoding determining device.
In order to implement the method of the embodiment of the present invention, the embodiment of the present invention further provides an encoding determining apparatus, which is disposed on a transmitting end device, as shown in fig. 9, and the apparatus includes:
a third obtaining unit 91, configured to obtain an attribute and a channel related parameter of the data packet to be transmitted. The method comprises the steps of carrying out a first treatment on the surface of the The attributes include at least one of: size, type.
A third determining unit 92, configured to determine whether to use an OVXDM scheme according to the attribute of the data packet to be transmitted and the channel related parameter.
Here, when the transmitting end device is a base station, the receiving end device may be a terminal, and the data packet to be transmitted may refer to a data packet to be transmitted by the base station to the terminal. When the transmitting end device is a terminal, the receiving end device may be a base station, and the data packet to be transmitted may refer to a data packet to be transmitted by the terminal to the base station.
Here, when the transmitting end device is a base station, the receiving end device may be a terminal, and the channel-related parameter may refer to a downlink channel-related parameter. When the transmitting end device is a terminal, the receiving end device may be a base station, and the channel-related parameter may refer to an uplink channel-related parameter.
Here, the type of the data packet to be transmitted may include one of the following:
FTP type;
a streaming media type;
a web browsing service type;
communication traffic type.
In practical application, the sending end device may acquire the channel related parameters from the receiving end device; or, using the reciprocity of the uplink and downlink channels to obtain the relevant parameters of the channels.
Based on this, in an embodiment, the third obtaining unit 91 is specifically configured to: acquiring the channel related parameters from receiving end equipment; or determining the channel related parameters by utilizing the reciprocity of the uplink and downlink channels.
Here, for downlink, when the transmitting end device is a base station and the receiving end device is a terminal, the base station may receive relevant parameters of a downlink channel reported by the terminal; or, the reciprocity of the uplink and downlink channels is utilized to obtain the relevant parameters of the downlink channels through the relevant parameters of the uplink channels. For the uplink, when the transmitting end equipment is a terminal and the receiving end equipment is a base station, the terminal can utilize relevant parameters of an uplink channel indicated by the base station; or, the reciprocity of the uplink and downlink channels is utilized to obtain the relevant parameters of the uplink channel through the relevant parameters of the downlink channel.
In practical application, it is assumed that the binary system is used to represent the data packet to be transmitted, if the binary bit number is small, the proportion of bits filled to avoid decoding misjudgment is large, the signaling efficiency of the system is reduced, at this time, the advantage of improving the spectrum efficiency by OVXDM is not obvious, and the decoding complexity of the receiving end is increased. Therefore, when a data packet to be transmitted is large and a channel-related parameter value is high, the OVXDM scheme is adopted.
Based on this, in an embodiment, the third determining unit 92 is specifically configured to: and judging whether an OVXDM scheme is adopted according to the size of the data packet to be transmitted and the related parameters of the channel.
Specifically, judging whether the size of the data packet to be transmitted is larger than a first preset threshold value, and judging whether the obtained channel related parameter value is larger than a second preset threshold value; when the size of the data packet to be transmitted is determined to be larger than a first preset threshold value and the channel related parameter value is determined to be larger than a second preset threshold value, determining to adopt an OVXDM scheme; otherwise, it is determined to employ a conventional modulation coding scheme.
In practical application, the size of the data packet to be transmitted can be determined according to the type of the data packet to be transmitted, so that whether an OVXDM scheme is adopted can be determined according to the type of the data packet to be transmitted and the channel related parameters.
Based on this, in an embodiment, the third determining unit 92 is specifically configured to: and judging whether an OVXDM scheme is adopted according to the type of the data packet to be transmitted and the channel related parameters.
Specifically, judging whether the type of the data packet to be transmitted is matched with a preset type, and judging whether the obtained channel related parameter value is larger than a second preset threshold value; when the type of the data packet to be transmitted is matched with the preset type and the channel related parameter value is larger than a second preset threshold value, determining to adopt an OVXDM scheme; otherwise, it is determined to employ a conventional modulation coding scheme.
In practical application, it may also be determined whether to use OVXDM scheme according to the size and type of the data packet to be transmitted.
Based on this, in an embodiment, the third determining unit 92 is specifically configured to: and judging whether an OVXDM scheme is adopted according to the size, the type and the channel related parameters of the data packet to be transmitted.
Here, when the size of the data packet to be transmitted is determined to be larger than the first preset threshold type and matched with the preset type, and the channel related parameter value is determined to be larger than the second preset threshold, determining to adopt an OVXDM scheme; otherwise, it is determined to employ a conventional modulation coding scheme.
In practical application, the third determining unit 92 may be implemented by a processor in the encoding determining device, and the third obtaining unit 91 may be implemented by a communication interface in the encoding determining device.
The embodiment of the present invention further provides a transmitting end device, which may specifically be a base station or a terminal, as shown in fig. 10, where the transmitting end device 100 includes: a communication interface 101, a processor 102, a memory 103; wherein, the liquid crystal display device comprises a liquid crystal display device,
a communication interface 101 capable of information interaction with other devices;
and the processor 102 is connected with the communication interface 101 and is used for executing the method provided by one or more technical schemes on the transmitting end equipment side when running the computer program. And the computer program is stored on the memory 103.
Of course, in practice, the various components in the sender device 100 are coupled together by a bus system 104. It is understood that the bus system 104 is used to enable connected communications between these components. The bus system 104 includes a power bus, a control bus, and a status signal bus in addition to the data bus. But for clarity of illustration the various buses are labeled as bus system 104 in fig. 10.
The memory 103 in the embodiment of the present application is used to store various types of data to support the operation of the data processing apparatus. Examples of such data include: any computer program for operation on the sender device 100.
The method disclosed in the embodiments of the present application may be applied to the processor 102 or implemented by the processor 102. The processor 102 may be an integrated circuit chip with signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in the processor 102 or by instructions in the form of software. The processor 102 described above may be a general purpose processor, a digital signal processor (DSP, digital Signal Processor), or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. The processor 102 may implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present application. The general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly embodied in a hardware decoding processor or implemented by a combination of hardware and software modules in the decoding processor. The software modules may be located in a storage medium located in the memory 103, and the processor 102 reads information in the memory 103, in combination with its hardware, to perform the steps of the method as described above.
In an exemplary embodiment, the sender device 100 may be implemented by one or more application specific integrated circuits (ASIC, application Specific Integrated Circuit), DSPs, programmable logic devices (PLD, programmable Logic Device), complex programmable logic devices (CPLD, complex Programmable Logic Device), field-programmable gate arrays (FPGA, field-Programmable Gate Array), general purpose processors, controllers, microcontrollers (MCU, micro Controller Unit), microprocessors (Microprocessor), or other electronic components for performing the aforementioned methods.
It is appreciated that the memory 103 of embodiments of the present application may be either volatile memory or nonvolatile memory, and may include both volatile and nonvolatile memory. Wherein the nonvolatile Memory may be Read Only Memory (ROM), programmable Read Only Memory (PROM, programmable Read-Only Memory), erasable programmable Read Only Memory (EPROM, erasable Programmable Read-Only Memory), electrically erasable programmable Read Only Memory (EEPROM, electrically Erasable Programmable Read-Only Memory), magnetic random access Memory (FRAM, ferromagnetic random access Memory), flash Memory (Flash Memory), magnetic surface Memory, optical disk, or compact disk Read Only Memory (CD-ROM, compact Disc Read-Only Memory); the magnetic surface memory may be a disk memory or a tape memory. The volatile memory may be random access memory (RAM, random Access Memory), which acts as external cache memory. By way of example, and not limitation, many forms of RAM are available, such as static random access memory (SRAM, static Random Access Memory), synchronous static random access memory (SSRAM, synchronous Static Random Access Memory), dynamic random access memory (DRAM, dynamic Random Access Memory), synchronous dynamic random access memory (SDRAM, synchronous Dynamic Random Access Memory), double data rate synchronous dynamic random access memory (ddr SDRAM, double Data Rate Synchronous Dynamic Random Access Memory), enhanced synchronous dynamic random access memory (ESDRAM, enhanced Synchronous Dynamic Random Access Memory), synchronous link dynamic random access memory (SLDRAM, syncLink Dynamic Random Access Memory), direct memory bus random access memory (DRRAM, direct Rambus Random Access Memory). The memory described in the embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.
It should be noted that: "first," "second," etc. are used to distinguish similar objects and not necessarily to describe a particular order or sequence.
In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above described device embodiments are only illustrative, e.g. the division of the units is only one logical function division, and there may be other divisions in practice, such as: multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. In addition, the various components shown or discussed may be coupled or directly coupled or communicatively coupled to each other via some interface, whether indirectly coupled or communicatively coupled to devices or units, whether electrically, mechanically, or otherwise.
It should be noted that: the technical schemes described in the embodiments of the present invention may be arbitrarily combined without any collision.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention: the technical schemes described in the embodiments of the present invention may be arbitrarily combined without any collision.

Claims (9)

1. A code determination method, applied to a transmitting device, the method comprising:
judging whether an overlap multiplexing OVXDM scheme is adopted according to the attribute of the data packet to be transmitted; the attributes include at least one of: size, type;
and/or the number of the groups of groups,
judging whether an OVXDM scheme is adopted according to the channel related parameters;
wherein, the liquid crystal display device comprises a liquid crystal display device,
the determining whether to adopt the OVXDM scheme according to the attribute of the data packet to be transmitted includes:
judging whether the size of a data packet to be transmitted is larger than a first preset threshold value or not; when the size of the data packet to be transmitted is determined to be larger than a first preset threshold value, determining to adopt an OVXDM scheme;
and/or the number of the groups of groups,
judging whether the type of the data packet to be transmitted is matched with a preset type; when the type of the data packet to be transmitted is determined to be matched with a preset type, determining to adopt an OVXDM scheme;
the determining whether to adopt the OVXDM scheme according to the channel related parameters includes:
judging whether the channel related parameter value is larger than a second preset threshold value or not;
and when the channel related parameter value is determined to be larger than a second preset threshold value, determining to adopt an OVXDM scheme.
2. The method of claim 1, wherein prior to determining whether to employ the OVXDM scheme, the method further comprises:
Acquiring the attribute of a data packet to be transmitted;
and/or the number of the groups of groups,
channel related parameters are obtained.
3. The method of claim 1, wherein obtaining channel-related parameters comprises:
acquiring the channel related parameters from receiving end equipment;
or alternatively, the process may be performed,
and determining the channel related parameters by utilizing the reciprocity of the uplink and downlink channels.
4. An encoding determination apparatus, applied to a transmitting-end device, comprising:
a first determining unit, configured to determine whether to use an OVXDM scheme according to an attribute of a data packet to be transmitted; the attributes include at least one of: size, type;
and/or the number of the groups of groups,
a second determining unit, configured to determine whether to use an OVXDM scheme according to the channel related parameter;
wherein, the liquid crystal display device comprises a liquid crystal display device,
the first determining unit is specifically configured to: judging whether the size of a data packet to be transmitted is larger than a first preset threshold value or not; when the size of the data packet to be transmitted is determined to be larger than a first preset threshold value, determining to adopt an OVXDM scheme;
and/or the number of the groups of groups,
judging whether the type of the data packet to be transmitted is matched with a preset type; when the type of the data packet to be transmitted is determined to be matched with a preset type, determining to adopt an OVXDM scheme;
The second determining unit is specifically configured to: judging whether the channel related parameter value is larger than a second preset threshold value or not; and when the channel related parameter value is determined to be larger than a second preset threshold value, determining to adopt an OVXDM scheme.
5. The apparatus of claim 4, wherein the apparatus further comprises:
the first acquisition unit is used for acquiring the attribute of the data packet to be transmitted;
and/or the number of the groups of groups,
and the second acquisition unit is used for acquiring the channel related parameters.
6. The apparatus according to claim 5, wherein the second acquisition unit is specifically configured to: acquiring the channel related parameters from receiving end equipment; or determining the channel related parameters by utilizing the reciprocity of the uplink and downlink channels.
7. A transmitting-end apparatus, characterized in that the transmitting-end apparatus comprises:
the processor is used for judging whether an OVXDM scheme is adopted according to the attribute of the data packet to be transmitted; the attributes include at least one of: size, type; and/or judging whether to adopt an OVXDM scheme according to the channel related parameters;
wherein, the liquid crystal display device comprises a liquid crystal display device,
the determining whether to adopt the OVXDM scheme according to the attribute of the data packet to be transmitted includes:
judging whether the size of a data packet to be transmitted is larger than a first preset threshold value or not; when the size of the data packet to be transmitted is determined to be larger than a first preset threshold value, determining to adopt an OVXDM scheme;
And/or the number of the groups of groups,
judging whether the type of the data packet to be transmitted is matched with a preset type; when the type of the data packet to be transmitted is determined to be matched with a preset type, determining to adopt an OVXDM scheme;
the determining whether to adopt the OVXDM scheme according to the channel related parameters includes:
judging whether the channel related parameter value is larger than a second preset threshold value or not;
and when the channel related parameter value is determined to be larger than a second preset threshold value, determining to adopt an OVXDM scheme.
8. A transmitting-end apparatus, characterized by comprising: a processor and a memory for storing a computer program capable of running on the processor,
wherein the processor is adapted to perform the steps of the method of any of claims 1 to 3 when the computer program is run.
9. A storage medium having stored thereon a computer program, which when executed by a processor performs the steps of the method of any of claims 1 to 3.
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