WO2018228052A1 - 一种信道编码方法及设备 - Google Patents

一种信道编码方法及设备 Download PDF

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Publication number
WO2018228052A1
WO2018228052A1 PCT/CN2018/083959 CN2018083959W WO2018228052A1 WO 2018228052 A1 WO2018228052 A1 WO 2018228052A1 CN 2018083959 W CN2018083959 W CN 2018083959W WO 2018228052 A1 WO2018228052 A1 WO 2018228052A1
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Prior art keywords
length
encoded data
channel
mother code
actual bearer
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PCT/CN2018/083959
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English (en)
French (fr)
Inventor
王加庆
郑方政
张荻
孙韶辉
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电信科学技术研究院有限公司
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Application filed by 电信科学技术研究院有限公司 filed Critical 电信科学技术研究院有限公司
Priority to KR1020207001293A priority Critical patent/KR102342600B1/ko
Priority to US16/623,380 priority patent/US11218248B2/en
Priority to EP18818388.3A priority patent/EP3641176A4/en
Priority to JP2019569731A priority patent/JP7027461B2/ja
Publication of WO2018228052A1 publication Critical patent/WO2018228052A1/zh

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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
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
    • H04L1/0013—Rate matching, e.g. puncturing or repetition of code symbols
    • 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
    • H04L1/0057—Block codes
    • 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
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
    • 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
    • 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
    • H04L1/0067—Rate matching
    • H04L1/0068—Rate matching by puncturing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/30—Resource management for broadcast services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/042—Public Land Mobile systems, e.g. cellular systems

Definitions

  • the present application relates to the field of wireless communication technologies, and in particular, to a channel coding method and device.
  • channel coding plays a vital role in ensuring the reliable transmission of data.
  • a turbo Turbo code a Low Density Parity Check (LDPC), and a Polarization code are generally used for channel coding.
  • Turbo codes cannot support information transmissions that are too low or too high.
  • Turbo code and LDPC code are also difficult to achieve ideal performance under a limited code length due to the characteristics of their own compiled code.
  • the Turbo code and the LDPC code have high computational complexity in the implementation of the compiled code.
  • the Polar code is a good code that theoretically proves that the Shannon capacity can be obtained and has a relatively simple coding code complexity, and thus has been widely used.
  • 5th Generation 5th Generation
  • 5G 5th Generation
  • eMBB Enhanced Mobile Broadband
  • mMTC Massive Machine Type Communication
  • URLLC Ultra Reliable Low Latency Communication
  • PBCH Physical Broadcast Channel
  • the Polar code is a linear block code whose coding matrix is G N and the encoding process is among them Is a binary line vector of length N (ie code length); G N is an N*N matrix, and a Kronecker product defined as n matrices F, where It can be seen from the above encoding process that the length of the integer power of the coded bit can only be encoded by the Polar coding method, and the coded bits can be of any length in practical applications. At present, Polar coding is still in the theoretical research stage, and there is no Polar coding method for physical broadcast channels.
  • the present invention provides a channel coding method and device for solving the problem of the prior art Polar coding method for a physical broadcast channel in a 5G scenario.
  • the embodiment of the present application provides a channel coding method, including:
  • encoded data that needs to be transmitted on the channel is determined.
  • determining the length of the polar mother code according to the transmission resource of the channel including:
  • the length of the actual bearer of the transmission resource is the length of the actual bearer of the Orthogonal Frequency Division Multiplex (OFDM) symbol of the channel.
  • OFDM Orthogonal Frequency Division Multiplex
  • the processing the target encoded data according to the length of the actual bearer of the transmission resource including:
  • the target encoded data is punctured or shortened according to the length of the actual bearer of the partial OFDM symbol;
  • the target encoded data is repeatedly operated according to the length of the actual bearer of the partial OFDM symbol.
  • the determining, according to the processed target encoded data, the encoded data that needs to be transmitted on the channel includes:
  • the processed target encoded data is used as encoded data transmitted on the partial OFDM symbol, and the encoded data transmitted on the partial OFDM symbol is copied onto other OFDM symbols of the channel.
  • the partial OFDM symbol is one OFDM symbol of the channel.
  • the processing the target encoded data according to the length of the actual bearer of the transmission resource including:
  • the target encoded data is punctured or shortened according to the length of the actual bearer of the entire OFDM symbol;
  • the target encoded data is repeatedly operated according to the length of the actual bearer of the entire OFDM symbol.
  • the determining, according to the processed target encoded data, the encoded data that needs to be transmitted on the channel includes:
  • the processed target encoded data is taken as encoded data that needs to be transmitted on the channel.
  • payload payloads of different lengths in the channel use the same polar mother code length.
  • the lengths of the polar mother codes used by the payloads of different lengths in the channel are the same or different.
  • an embodiment of the present application provides a channel coding apparatus, including:
  • a determining module configured to determine a polar mother code length according to a transmission resource of the channel
  • An encoding module configured to perform polar encoding on data to be transmitted on the channel according to the length of the polar mother code to obtain target encoded data
  • a processing module configured to process the target encoded data according to a length of an actual bearer of the transmission resource
  • a transmission module configured to determine, according to the processed target encoded data, encoded data that needs to be transmitted on the channel.
  • the determining module is specifically configured to:
  • the length of the actual bearer of the transmission resource is the length of the actual bearer of part or all of the OFDM symbols of the channel, according to the length of the actual bearer of the transmission resource.
  • the determining module determines the length of the polar mother code according to a length of an actual bearer of a partial OFDM symbol of the channel
  • the processing module is specifically configured to:
  • the target encoded data is punctured or shortened according to the length of the actual bearer of the partial OFDM symbol;
  • the target encoded data is repeatedly operated according to the length of the actual bearer of the partial OFDM symbol.
  • the transmission module is specifically configured to:
  • the processed target encoded data is used as encoded data transmitted on the partial OFDM symbol, and the encoded data transmitted on the partial OFDM symbol is copied onto other OFDM symbols of the channel.
  • the partial OFDM symbol is one OFDM symbol of the channel.
  • the determining module determines the length of the polar mother code according to a length of an actual bearer of all OFDM symbols of the channel;
  • the processing module is specifically configured to:
  • the target encoded data is punctured or shortened according to the length of the actual bearer of the entire OFDM symbol;
  • the target encoded data is repeatedly operated according to the length of the actual bearer of the entire OFDM symbol.
  • the transmission module is specifically configured to:
  • the processed target encoded data is taken as encoded data that needs to be transmitted on the channel.
  • payload payloads of different lengths in the channel use the same polar mother code length.
  • the lengths of the polar mother codes used by the payloads of different lengths in the channel are the same or different.
  • the embodiment of the present application provides another channel coding apparatus, including:
  • a memory for storing program instructions
  • a processor configured to invoke a program instruction stored in the memory, and execute according to the obtained program:
  • encoded data that needs to be transmitted on the channel is determined.
  • a computer storage medium is provided by the embodiment of the present application, the computer storage medium storing computer executable instructions for causing the computer to execute any of the foregoing methods.
  • the embodiment of the present application determines a suitable polar mother code length according to the transmission resource of the channel, and encodes the data by using the determined polar mother code length; and processes the encoded data according to the actual bearer length of the transmission resource, thereby implementing the basis
  • the actual transmission resource length of the channel determines the encoded data to ensure that the processed encoded data can be accurately transmitted through the channel.
  • FIG. 1 is a flowchart of a channel coding method according to an embodiment of the present application.
  • FIG. 2 is an overall flowchart of a first channel coding method according to an embodiment of the present application
  • FIG. 3 is an overall flowchart of a second channel coding method according to an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a first channel coding apparatus according to an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a second channel coding apparatus according to an embodiment of the present application.
  • a channel coding method in this embodiment of the present application includes:
  • Step 101 Determine a length of a polar mother code according to a transmission resource of the channel.
  • Step 102 Perform polar coding on the data to be transmitted on the channel according to the length of the polar mother code to obtain target coded data.
  • Step 103 Process target encoded data according to a length of an actual bearer of the transmission resource.
  • Step 104 Determine, according to the processed target encoded data, the encoded data that needs to be transmitted on the channel.
  • the embodiment of the present application determines a suitable polar mother code length according to the transmission resource of the channel, and encodes the data by using the determined polar mother code length; and processes the encoded data according to the actual bearer length of the transmission resource, thereby implementing the basis
  • the actual transmission resource length of the channel determines the encoded data to ensure that the processed encoded data can be accurately transmitted through the channel.
  • the channel coding method in the embodiment of the present application may be applied to a physical broadcast channel, but the channel coding method in the embodiment of the present application is limited to the physical broadcast channel coding, and the other embodiments may also adopt the embodiment of the present application.
  • the following describes an example of a physical broadcast channel coding method.
  • the length of the polar mother code is an integer power of 2.
  • the length of the polar mother code may be 2, 4, 8, ... 256, 512, 1024, and the like.
  • the actual length of the transmission resource is the number of bits of the bearer actually used to transmit data in the transmission resource, and is the number of bits of the bearer after the DMRS (Demodulation Reference Signal) overhead of the transmission resource is removed.
  • DMRS Demodulation Reference Signal
  • the length of the actual bearer of the transmission resource is the length of the actual bearer of one Orthogonal Frequency Division Multiplex (OFDM) symbol, and one OFDM symbol occupies 288 carriers, assuming the DMRS overhead is 1/3,
  • one of the polar mother code length sets is selected according to the length of the actual bearer of the transmission resource, where the actual bearer length of the transmission resource is the actual bearer of part or all of the OFDM symbols of the physical broadcast channel. length.
  • the encoded data is also processed according to the length of the actual bearer of the partial OFDM symbol. If the polar mother code length is determined according to the length of the actual bearer of all OFDM symbols of the physical broadcast channel, when the encoded data is processed, the encoded data is also processed according to the length of the actual bearer of all the OFDM symbols.
  • the method of physical broadcast channel coding is separately described below for different ways of determining the length of the polar mother code.
  • Manner 1 The length of the polar mother code is determined according to the length of the actual bearer of the partial OFDM symbol of the physical broadcast channel.
  • the physical broadcast channel is transmitted using multiple OFDM symbols
  • the polar mother code length is determined according to the length of the actual bearer of one OFDM symbol of the physical broadcast channel.
  • one of the polar mother code length sets is selected as the polar mother code length according to the length of the actual bearer of the partial OFDM symbol of the physical broadcast channel.
  • a length close to the length of the actual bearer of the partial OFDM symbol is also selected from the set of polar mother code lengths as the polar mother code length;
  • a length greater than an actual bearer of the part of the OFDM symbol may be selected, and a length closest to a length of the actual bearer of the part of the OFDM symbol is used as a polar mother code length; or a length smaller than an actual bearer of the part of the OFDM symbol is selected. And the length closest to the length of the actual bearer of the partial OFDM symbol is taken as the polar mother code length.
  • the polar mother code length is determined according to the length of the actual bearer of one OFDM symbol.
  • An OFDM symbol occupies 288 carriers.
  • the optional length of the polar mother code length set is an integer power of 2.
  • different length payloads (physical payloads) in the physical broadcast channel use the same polar mother code length.
  • the payload includes information bits and a Cyclic Redundancy Check (CRC) part.
  • CRC Cyclic Redundancy Check
  • the length of the payload is 70 bits
  • the length of the determined polar mother code is 512 bits
  • the polar mother code of 512 bits is still used.
  • the data that needs to be transmitted on the physical broadcast channel is polar-coded according to the length of the polar mother code to obtain the target coded data.
  • the embodiment of the present application performs the data that needs to be transmitted on the physical broadcast channel according to the length of the polar mother code.
  • the polar encoding process uses the prior art method and will not be described in detail herein.
  • the length of the obtained target coded data is the same as the length of the polar mother code.
  • step 103 optionally, if the length of the actual bearer of the partial OFDM symbol is not greater than the length of the polar mother code, the target encoded data is punctured or shortened according to the length of the actual bearer of the partial OFDM symbol; or
  • the target encoded data is repeatedly operated according to the length of the actual bearer of the partial OFDM symbol.
  • the target encoded data is punctured or shortened.
  • the length of the processed target encoded data obtained is the length of the actual bearer of the partial OFDM symbol.
  • the polar mother code length is determined according to the length of the actual bearer of one OFDM symbol.
  • An OFDM symbol occupies 288 carriers.
  • the optional length of the polar mother code length set is an integer power of 2.
  • 512 bits is selected as the length of the polar mother code. Since the data is encoded using 512 bits, the obtained target coded data has a length of 512 bits, and the actual bearer length of one OFDM symbol is 384 bits. Therefore, it is necessary to punch or shorten the target coded data.
  • the length of the target encoded data after the punching or shortening operation is 384 bits.
  • the length of the actual bearer of one OFDM symbol is equal to the length of the polar mother code
  • the length of the puncturing is 0 bits; or the target coded data is shortened.
  • the shortened length is 0 bits.
  • the target encoded data is repeatedly operated.
  • the length of the processed target coded data is the length of the actual bearer of the part of the OFDM symbol.
  • the difference between the length of the actual bearer of one OFDM symbol and the length of the polar mother code is determined, and the coded data of N bits is selected from the target coded data for repetition; wherein N is the length of the actual bearer of one OFDM symbol and the polar mother The difference in code length.
  • the polar mother code length is determined according to the length of the actual bearer of one OFDM symbol.
  • An OFDM symbol occupies 288 carriers.
  • the optional length of the polar mother code length set is an integer power of 2.
  • 256 bits is selected as the length of the polar mother code. Since the data is encoded using 256 bits, the obtained target encoded data has a length of 256 bits, and the actual bearer length of one OFDM symbol is 384 bits, and therefore, the target encoded data needs to be repeatedly operated.
  • 128-bit encoded data is selected from the target encoded data of length 256 bits, and the target encoded data of 256 bits in length and the encoded data of 128 bits are selected as the processed target encoded data, and the target encoded data after repeated operations is performed.
  • the length is 384bits.
  • the polar mother code length is determined based on the length of the actual bearer of one OFDM symbol.
  • the optional length of the polar mother code length set is an integer power of 2.
  • 128 bits is selected as the length of the polar mother code. Since the data is encoded using 128 bits, the length of the obtained target coded data is 128 bits, and the actual bearer length of one OFDM symbol is 384 bits, so the target coded data needs to be repeatedly operated. Since the difference between the length of the actual bearer of one OFDM symbol and the length of the polar mother code is 256 bits, the target coded data of length 128 bits is repeated twice to obtain the processed target coded data of length 384 bits.
  • the embodiment of the present application determines the encoded data that needs to be transmitted on the channel by using the following manner:
  • the processed target encoded data is used as encoded data transmitted on partial OFDM symbols, and the encoded data transmitted on the partial OFDM symbols is copied to other OFDM symbols of the channel.
  • the physical broadcast channel is transmitted using two OFDM symbols. It is assumed that the polar mother code length is determined according to the length of the actual bearer of one OFDM symbol of the physical broadcast channel; and the target coded data is processed according to the length of the actual bearer of one OFDM symbol, and the processed target coded data is taken as the first
  • the encoded data transmitted on the OFDM symbol and the encoded data transmitted on the first OFDM symbol is directly copied onto the second OFDM symbol.
  • the physical broadcast channel is transmitted using four OFDM symbols. It is assumed that the polar mother code length is determined according to the length of the actual bearer of one OFDM symbol of the physical broadcast channel; and the target coded data is processed according to the length of the actual bearer of one OFDM symbol, and the processed target coded data is taken as the first
  • the polar mother code length is determined according to the length of the actual bearer of the two OFDM symbols of the physical broadcast channel; and the target coded data is processed according to the length of the actual bearer of the two OFDM symbols, and the processed target coded data is used as
  • the encoded data transmitted on the first two OFDM symbols and the encoded data transmitted on the first two OFDM symbols are directly copied onto the two OFDM symbols after the physical broadcast channel.
  • the overall flowchart of the physical broadcast channel coding method in this embodiment of the present application is as shown in FIG. 2 .
  • Step 201 Determine a polar mother code length according to a length of an actual bearer of a partial OFDM symbol of the physical broadcast channel.
  • Step 202 Perform polar coding on the data that needs to be transmitted on the physical broadcast channel according to the length of the polar mother code to obtain target coded data.
  • Step 203 determining whether the length of the actual bearer of the partial OFDM symbol is greater than the length of the polar mother code, and if so, executing step 204, if not, executing step 205;
  • Step 204 repeating operation on the target encoded data according to the length of the actual bearer of the partial OFDM symbol; performing step 206;
  • Step 205 Perform punching or shortening operation on the target encoded data according to the length of the actual bearer of the partial OFDM symbol;
  • Step 206 The processed target encoded data is used as encoded data transmitted on the partial OFDM symbol, and the encoded data transmitted on the partial OFDM symbol is copied to other OFDM symbols of the physical broadcast channel.
  • the polar mother code length is determined according to the length of the actual bearer of one OFDM symbol.
  • the target encoded data is punctured to obtain target encoded data having a length of 384 bits.
  • the target encoded data of length 384 bits is used as the encoded data transmitted on the first OFDM symbol, and the 384-bit target encoded data is directly copied to the second OFDM symbol.
  • the equivalent code rate when the mother code length is 512 is determined according to the length of the actual bearer of the OFDM symbol.
  • R_eff_min1 40/384 ⁇ 1/9.5, if the mother code length is 256.
  • the target encoded data is punctured to obtain target encoded data having a length of 384 bits.
  • the target encoded data of length 384 bits is used as the encoded data transmitted on the first OFDM symbol, and the 384-bit target encoded data is directly copied to the second OFDM symbol.
  • Manner 2 The length of the polar mother code is determined according to the length of the actual bearer of all OFDM symbols of the physical broadcast channel.
  • the physical broadcast channel is transmitted using multiple OFDM symbols
  • the polar mother code length is determined according to the length of the actual bearer of all OFDM symbols of the physical broadcast channel.
  • one of the polar mother code length sets is selected as the polar mother code length according to the length of the actual bearer of all OFDM symbols of the physical broadcast channel.
  • a length close to the length of the actual bearer of all OFDM symbols may be selected from the set of polar mother code lengths as the polar mother code length;
  • a length greater than an actual bearer of the entire OFDM symbol may be selected, and a length closest to an actual bearer length of the entire OFDM symbol is used as a polar mother code length; or a length smaller than an actual bearer of the entire OFDM symbol is selected. And the length closest to the length of the actual bearer of the entire OFDM symbol is taken as the polar mother code length.
  • the optional length of the polar mother code length set is an integer power of 2. When determining the length of the polar mother code, 512 bits or 1024 bits can be selected as the polarity of the mother code.
  • different lengths of payloads in the physical broadcast channel use the same or different polar mother code lengths.
  • the payload includes information bits and a CRC part.
  • the same polar mother code length is used for payloads of different lengths in the physical broadcast channel
  • the length of the payload is 70 bits
  • the length of the determined polar mother code is 512 bits
  • the polar mother code of 512 bits is still used.
  • different polar mother code lengths are used for payloads of different lengths in the physical broadcast channel
  • the length of the payload is 70 bits
  • the length of the determined polar mother code is 1024 bits
  • the length of the determined polar mother code is 512 bits
  • the length of the payload when it is 40 bits, the determined polar mother code length is 256 bits.
  • some payloads of different lengths use the same polar mother code length.
  • two polar mother code lengths may be determined, for example, the first polar mother code length and the second polar mother code length are determined.
  • the length of the payload is 40-55 bits
  • the length of the first polar mother code is selected
  • the length of the payload is 56-72 bits
  • the length of the second polar mother code is selected.
  • the data that needs to be transmitted on the physical broadcast channel is polar-coded according to the length of the polar mother code to obtain the target coded data.
  • the embodiment of the present application performs the data that needs to be transmitted on the physical broadcast channel according to the length of the polar mother code.
  • the polar encoding process uses the prior art method and will not be described in detail herein.
  • the length of the obtained target coded data is the same as the length of the polar mother code.
  • step 103 optionally, if the length of the actual bearer of all OFDM symbols is not greater than the length of the polar mother code, the target encoded data is punctured or shortened according to the length of the actual bearer of all the OFDM symbols; or
  • the target encoded data is repeatedly operated according to the length of the actual bearer of all the OFDM symbols.
  • the target encoded data is punctured or shortened.
  • the length of the processed target coded data is the length of the actual bearer of the entire OFDM symbol.
  • the optional length of the polar mother code length set is an integer power of 2.
  • 1024 bits is selected as the length of the polar mother code. Since the data is encoded by using 1024 bits, the obtained target encoded data has a length of 1024 bits, and the actual bearer length of one OFDM symbol is 768 bits. Therefore, it is necessary to punch or shorten the target encoded data. The length of the target encoded data after the punching or shortening operation is 768 bits.
  • the length of the actual bearer of multiple OFDM symbols is equal to the length of the polar mother code
  • the length of the puncturing is 0 bits; or the target coded data is performed.
  • the shortened length is 0 bits.
  • the length of the processed target coded data is the length of the actual bearer of the entire OFDM symbol.
  • the difference between the length of the actual bearer of all OFDM symbols and the length of the polar mother code is determined, and the coded data of N bits is selected from the target coded data for repetition; wherein N is the length of the actual bearer of all OFDM symbols and the polar mother The difference in code length.
  • the optional length of the polar mother code length set is an integer power of 2. When determining the length of the polar mother code, 512 bits is selected as the length of the polar mother code. Since the data is encoded using 512 bits, the obtained target encoded data has a length of 512 bits, and the actual carrying length of the two OFDM symbols is 768 bits, and therefore, the target encoded data needs to be repeatedly operated.
  • 256-bit encoded data is selected from the target encoded data of length 512 bits, and the target encoded data of 512 bits in length and the encoded data of 256 bits are selected as the processed target encoded data, and the target encoded data after repeated operations is performed.
  • the length is 768bits.
  • the optional length of the polar mother code length set is an integer power of 2.
  • 256 bits is selected as the length of the polar mother code. Since the data is encoded using 256 bits, the length of the obtained target coded data is 256 bits, and the actual bearer length of the two OFDM symbols is 768 bits. Therefore, it is necessary to perform repeated operations on the target coded data. Since the difference between the length of the actual bearer of the two OFDM symbols and the length of the polar mother code is 512 bits, the target coded data of length 256 bits is repeated twice to obtain the target coded data of length 768 bits.
  • the embodiment of the present application determines the encoded data that needs to be transmitted on the channel by using the following manner:
  • the processed target encoded data is taken as encoded data that needs to be transmitted on the channel.
  • the processed target encoded data is used as encoded data transmitted on all OFDM symbols.
  • the overall flowchart of the physical broadcast channel coding method in this embodiment of the present application is as shown in FIG. 3 when the length of the polar mother code is determined according to the length of the actual bearer of the OFDM symbol.
  • Step 301 Determine a polar mother code length according to a length of an actual bearer of all OFDM symbols of the physical broadcast channel.
  • Step 302 Perform polar coding on the data that needs to be transmitted on the physical broadcast channel according to the length of the polar mother code to obtain target coded data.
  • Step 303 determining whether the length of the actual bearer of all OFDM symbols is greater than the length of the polar mother code, and if so, executing step 304, if not, executing step 305;
  • Step 304 repeating operations on the target encoded data according to the length of the actual bearer of all OFDM symbols; performing step 306;
  • Step 305 Perform punching or shortening operation on the target encoded data according to the length of the actual bearer of all OFDM symbols.
  • Step 306 The processed target encoded data is directly used as encoded data that needs to be transmitted on a physical broadcast channel.
  • the polar mother code length is determined according to the length of the actual bearer of all OFDM symbols; and the payloads of different lengths in the physical broadcast channel use the same polar mother code length.
  • the target encoded data is repeatedly operated to obtain target encoded data having a length of 768 bits.
  • the target encoded data of length 768 bits is directly used as the encoded data transmitted on the physical broadcast channel.
  • the target encoded data of length 768 bits is directly used as the encoded data transmitted on the physical broadcast channel.
  • the polar mother code length is determined according to the length of the actual bearer of all OFDM symbols; and different lengths of payload in the physical broadcast channel use different polar mother code lengths.
  • the target encoded data is punctured to obtain target encoded data having a length of 768 bits.
  • the target coded data of length 768 bits is directly used as the coded data to be transmitted on the physical broadcast channel.
  • the target coded data of length 768 bits is directly used as the coded data to be transmitted on the physical broadcast channel.
  • a channel coding device is also provided in the embodiment of the present application. Since the principle of the device is similar to the method, the implementation of the device can be referred to the implementation of the system, and the details are not repeated here.
  • the first channel coding device in this embodiment of the present application includes:
  • a determining module 401 configured to determine a polar mother code length according to a transmission resource of the channel
  • the encoding module 402 is configured to perform polar encoding on the data that needs to be transmitted on the channel according to the length of the polar mother code to obtain target encoded data.
  • the processing module 403 is configured to process the target encoded data according to the length of the actual bearer of the transmission resource
  • the transmission module 404 is configured to determine, according to the processed target encoded data, the encoded data that needs to be transmitted on the channel.
  • the determining module 401 is specifically configured to:
  • One of the polar mother code length sets is selected according to the length of the actual bearer of the transmission resource; wherein the length of the actual bearer of the transmission resource is the length of the actual bearer of part or all of the OFDM symbols of the channel.
  • the determining module 401 determines the polar mother code length according to the length of the actual bearer of the partial OFDM symbol of the channel;
  • the processing module 403 is specifically configured to:
  • the target encoded data is punctured or shortened according to the length of the actual bearer of the partial OFDM symbol;
  • the target encoded data is repeatedly operated according to the length of the actual bearer of the partial OFDM symbol.
  • the transmission module 404 is specifically configured to:
  • the processed target encoded data is used as encoded data transmitted on partial OFDM symbols, and the encoded data transmitted on the partial OFDM symbols is copied to other OFDM symbols of the channel.
  • the partial OFDM symbol is one OFDM symbol of the channel.
  • the determining module 401 determines the polar mother code length according to the length of the actual bearer of all OFDM symbols of the channel;
  • the processing module 403 is specifically configured to:
  • the target encoded data is punctured or shortened according to the length of the actual bearer of all OFDM symbols;
  • the target encoded data is repeatedly operated according to the length of the actual bearer of all the OFDM symbols.
  • the transmission module 404 is specifically configured to:
  • the processed target encoded data is taken as encoded data that needs to be transmitted on the channel.
  • payload payloads of different lengths in the channel use the same polar mother code length.
  • the lengths of the polar mother codes used by the payloads of different lengths in the channel are the same or different.
  • each of the foregoing modules may be implemented by using a physical device such as a processor.
  • a second channel coding device in this embodiment of the present application includes:
  • the processor 501 is configured to send and receive data through the transceiver 502, and read the program in the memory 504, and perform the following process:
  • the transceiver 502 is configured to receive and transmit data under the control of the processor 501.
  • the processor 501 is specifically configured to:
  • One of the polar mother code length sets is selected according to the length of the actual bearer of the transmission resource; wherein the length of the actual bearer of the transmission resource is the length of the actual bearer of part or all of the OFDM symbols of the channel.
  • the processor 501 determines the length of the polar mother code according to the length of the actual bearer of the partial OFDM symbol of the channel;
  • the processor 501 is specifically configured to:
  • the target encoded data is punctured or shortened according to the length of the actual bearer of the partial OFDM symbol;
  • the target encoded data is repeatedly operated according to the length of the actual bearer of the partial OFDM symbol.
  • the processor 501 is specifically configured to:
  • the processed target encoded data is used as encoded data transmitted on partial OFDM symbols, and the encoded data transmitted on the partial OFDM symbols is copied to other OFDM symbols of the channel.
  • the partial OFDM symbol is one OFDM symbol of the channel.
  • the processor 501 determines the polar mother code length according to the length of the actual bearer of all OFDM symbols of the channel;
  • the processor 501 is specifically configured to:
  • the target encoded data is punctured or shortened according to the length of the actual bearer of all OFDM symbols;
  • the target encoded data is repeatedly operated according to the length of the actual bearer of all the OFDM symbols.
  • the processor 501 is specifically configured to:
  • the processed target encoded data is taken as encoded data that needs to be transmitted on the channel.
  • payload payloads of different lengths in the channel use the same polar mother code length.
  • the lengths of the polar mother codes used by the payloads of different lengths in the channel are the same or different.
  • bus 500 can include any number of interconnected buses and bridges, and bus 500 will include one or more processors represented by processor 501 and memory represented by memory 504. The various circuits are linked together. The bus 500 can also link various other circuits, such as peripherals, voltage regulators, and power management circuits, as is known in the art, and therefore, will not be further described herein.
  • Bus interface 503 provides an interface between bus 500 and transceiver 502. Transceiver 502 can be an element or a plurality of elements, such as multiple receivers and transmitters, providing means for communicating with various other devices on a transmission medium. Data processed by processor 501 is transmitted over wireless medium via antenna 505. Further, antenna 505 also receives the data and transmits the data to processor 501.
  • the processor 501 is responsible for managing the bus 500 and the usual processing, and can also provide various functions including timing, peripheral interfaces, voltage regulation, power management, and other control functions.
  • the memory 504 can be used to store data used by the processor 501 when performing operations.
  • the processor 501 may be a CPU (Center Processing Unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array), or a CPLD ( Complex Programmable Logic Device, Complex Programmable Logic Device).
  • CPU Center Processing Unit
  • ASIC Application Specific Integrated Circuit
  • FPGA Field-Programmable Gate Array
  • CPLD Complex Programmable Logic Device, Complex Programmable Logic Device
  • the channel coding method provided by the embodiment of the present application can be applied to a network device.
  • the network device may be a base station (eg, an access point), and refers to a device in the access network that communicates with the wireless terminal through one or more sectors on the air interface.
  • the base station can be used to convert the received air frame to the IP packet as a router between the wireless terminal and the rest of the access network, wherein the remainder of the access network can include an Internet Protocol (IP) network.
  • IP Internet Protocol
  • the base station can also coordinate attribute management of the air interface.
  • the base station may be a base station (BTS, Base Transceiver Station) in GSM (Global System for Mobile Communication) or CDMA (Code Division Multiple Access), or may be WCDMA (Wideband Code Division Multiple).
  • GSM Global System for Mobile Communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple
  • the base station (NodeB) in the access the wideband code (multi-address), and the LTE (Long Time Evolution), the evolved base station (NodeB or eNB or e-NodeB, evolutional Node B), in the embodiment of the present application Not limited.
  • the embodiment of the present application further provides a computer storage medium, which may be any available medium or data storage device accessible by a computer, including but not limited to a magnetic memory (such as a floppy disk, a hard disk, a magnetic tape, a magneto-optical disk (MO), etc. ), optical storage (such as CD, DVD, BD, HVD, etc.), and semiconductor memory (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid state drive (SSD)).
  • the computer storage medium can be non-volatile, ie, the content is not lost after power down.
  • the computer storage medium stores a software program, which can implement the scheme of any of the above channel coding methods in the embodiments of the present application when being read and executed by one or more processors.
  • the application can also be implemented in hardware and/or software (including firmware, resident software, microcode, etc.). Still further, the application can take the form of a computer program product on a computer usable or computer readable storage medium having computer usable or computer readable program code embodied in a medium for use by an instruction execution system or Used in conjunction with the instruction execution system.
  • a computer usable or computer readable medium can be any medium that can contain, store, communicate, communicate, or transport a program for use by an instruction execution system, apparatus or device, or in conjunction with an instruction execution system, Used by the device or device.

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Abstract

本申请涉及无线通信技术领域，特别涉及一种信道编码方法及设备，用以解决在5G场景中目前还没有一种物理广播信道的Polar编码方法的问题。本申请实施例根据信道的传输资源确定polar母码长度；根据polar母码长度对需要在信道传输的数据进行polar编码，得到目标编码数据；根据传输资源的实际承载的长度对所述目标编码数据进行处理；根据处理后的目标编码数据，确定需要在信道上传输的编码数据。本申请实施例实现了根据信道实际的传输资源长度确定编码数据，保证处理后的编码数据能够通过信道进行准确的传输。

Description

一种信道编码方法及设备
本申请要求在2017年6月16日提交中国专利局、申请号为201710459080.0、发明名称为“一种信道编码方法及设备”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。
技术领域
本申请涉及无线通信技术领域，特别涉及一种信道编码方法及设备。
背景技术
信道编码作为最基本的无线接入技术，在保证数据的可靠性传输方面起到至关重要的作用。在现有的无线通信系统中，一般采用涡轮Turbo码、低密度奇偶校验码(Low Density Parity Check，LDPC)和极化(Polar)码进行信道编码。Turbo码不能够支持过低或过高码率的信息传输。而对于中短包传输，Turbo码和LDPC码也由于自身编译码的特点，在有限码长下很难达到理想的性能。在实现方面，Turbo码和LDPC码在编译码实现过程中具有较高的计算复杂度。Polar码是理论上证明可以取得香农容量，且具有相对简单的编译码复杂度的好码，因而得到了越来越广泛的应用。
但是，随着无线通信系统的快速演进，第五代(5th Generation，5G)通信系统等未来的通信系统将会出现一些新的特点。例如，最典型的三个通信场景包括增强型移动互联网(Enhance Mobile Broadband，eMBB)、海量机器连接通信(Massive Machine Type Communication，mMTC)和高可靠低延迟通信(Ultra Reliable Low Latency Communication，URLLC)。这些通信场景对于Polar码的编译码性能提出了更高的要求。对于物理广播信道(Physical Broadcast Channel，PBCH)，由于其传输资源固定，并且通过物理广播信道传输的负载非常重要，因此，在物理广播信道上采用Polar编码方式是一种较优的选择。
Polar码是一种线性块码，其编码矩阵为G N，编码过程为
Figure PCTCN2018083959-appb-000001
其中
Figure PCTCN2018083959-appb-000002
是一个二进制的行矢量，长度为N(即码长)；G N是一个N*N的矩阵，且
Figure PCTCN2018083959-appb-000003
定义为n个矩阵F的克罗内克(Kronecker)乘积，其中
Figure PCTCN2018083959-appb-000004
从上述编码过程可以看出，采用Polar编码的方式只能对编码比特为2的整数次幂的长度进行编码，而在对实际应用中编码比特可以是任意长度。目前，Polar编码还处于理论研究阶段，针对物理广播信道还没有一种Polar编码的方法。
综上所述，在5G场景中，目前还没有一种物理广播信道的Polar编码方法。
发明内容
本申请提供一种信道编码方法及设备，用以解决现有技术在5G场景中目前还没有一种物理广播信道的Polar编码方法的问题。
基于上述问题，本申请实施例提供一种信道编码方法，包括：
根据信道的传输资源确定polar母码长度；
根据所述polar母码长度对需要在所述信道传输的数据进行polar编码，得到目标编码数据；
根据所述传输资源的实际承载的长度对所述目标编码数据进行处理；
根据处理后的目标编码数据，确定需要在所述信道上传输的编码数据。
可选的，所述根据信道的传输资源确定polar母码长度，包括：
根据所述传输资源的实际承载的长度，从polar母码长度集合中选取一个；
其中，所述传输资源的实际承载的长度为所述信道的部分或全部正交频分复用(Orthogonal Frequency Division Multiplex，OFDM)符号的实际承载的长度。
可选的，若根据所述信道的部分OFDM符号的实际承载的长度确定所述polar母码长度；
所述根据所述传输资源的实际承载的长度对所述目标编码数据进行处 理，包括：
若所述部分OFDM符号的实际承载的长度不大于所述polar母码长度，根据所述部分OFDM符号的实际承载的长度对所述目标编码数据进行打孔或缩短操作；或
若所述部分OFDM符号的实际承载的长度大于所述polar母码长度，根据所述部分OFDM符号的实际承载的长度对所述目标编码数据进行重复操作。
可选的，所述根据处理后的目标编码数据，确定需要在所述信道上传输的编码数据，包括：
将处理后的目标编码数据作为在所述部分OFDM符号上传输的编码数据，并将所述部分OFDM符号上传输的编码数据复制到所述信道的其他OFDM符号上。
可选的，所述部分OFDM符号为所述信道的一个OFDM符号。
可选的，若根据所述信道的全部OFDM符号的实际承载的长度确定所述polar母码长度；
所述根据所述传输资源的实际承载的长度对所述目标编码数据进行处理，包括：
若所述全部OFDM符号的实际承载的长度不大于所述polar母码长度，根据所述全部OFDM符号的实际承载的长度对所述目标编码数据进行打孔或缩短操作；或
若所述全部OFDM符号的实际承载的长度大于所述polar母码长度，根据所述全部OFDM符号的实际承载的长度对所述目标编码数据进行重复操作。
可选的，所述根据处理后的目标编码数据，确定需要在所述信道上传输的编码数据，包括：
将处理后的目标编码数据作为需要在所述信道上传输的编码数据。
可选的，所述信道中不同长度的有效载荷payload使用相同的polar母码 长度。
可选的，所述信道中不同长度的payload使用的polar母码长度相同或不同。
另一方面，本申请实施例提供一种信道编码设备，包括：
确定模块，用于根据信道的传输资源确定polar母码长度；
编码模块，用于根据所述polar母码长度对需要在所述信道传输的数据进行polar编码，得到目标编码数据；
处理模块，用于根据所述传输资源的实际承载的长度对所述目标编码数据进行处理；
传输模块，用于根据处理后的目标编码数据，确定需要在所述信道上传输的编码数据。
可选的，所述确定模块，具体用于：
根据所述传输资源的实际承载的长度，从polar母码长度集合中选取一个；其中，所述传输资源的实际承载的长度为所述信道的部分或全部OFDM符号的实际承载的长度。
可选的，若所述确定模块根据所述信道的部分OFDM符号的实际承载的长度确定所述polar母码长度；
所述处理模块，具体用于：
若所述部分OFDM符号的实际承载的长度不大于所述polar母码长度，根据所述部分OFDM符号的实际承载的长度对所述目标编码数据进行打孔或缩短操作；或
若所述部分OFDM符号的实际承载的长度大于所述polar母码长度，根据所述部分OFDM符号的实际承载的长度对所述目标编码数据进行重复操作。
可选的，所述传输模块，具体用于：
将处理后的目标编码数据作为在所述部分OFDM符号上传输的编码数据，并将所述部分OFDM符号上传输的编码数据复制到所述信道的其他 OFDM符号上。
可选的，所述部分OFDM符号为所述信道的一个OFDM符号。
可选的，若所述确定模块根据所述信道的全部OFDM符号的实际承载的长度确定所述polar母码长度；
所述处理模块，具体用于：
若所述全部OFDM符号的实际承载的长度不大于所述polar母码长度，根据所述全部OFDM符号的实际承载的长度对所述目标编码数据进行打孔或缩短操作；或
若所述全部OFDM符号的实际承载的长度大于所述polar母码长度，根据所述全部OFDM符号的实际承载的长度对所述目标编码数据进行重复操作。
可选的，所述传输模块，具体用于：
将处理后的目标编码数据作为需要在所述信道上传输的编码数据。
可选的，所述信道中不同长度的有效载荷payload使用相同的polar母码长度。
可选的，所述信道中不同长度的payload使用的polar母码长度相同或不同。
另一方面，本申请实施例提供另一种信道编码设备，包括：
存储器，用于存储程序指令；
处理器，用于调用所述存储器中存储的程序指令，按照获得的程序执行：
根据信道的传输资源确定极化polar母码长度；
根据所述polar母码长度对需要在所述信道传输的数据进行polar编码，得到目标编码数据；
根据所述传输资源的实际承载的长度对所述目标编码数据进行处理；
根据处理后的目标编码数据，确定需要在所述信道上传输的编码数据。
另一方面，本申请实施例提供的一种计算机存储介质，所述计算机存储介质存储有计算机可执行指令，所述计算机可执行指令用于使所述计算机执 行上述任一种方法。
本申请实施例根据信道的传输资源确定合适的polar母码长度，并使用确定的polar母码长度对数据进行编码；并且根据传输资源的实际承载长度对编码后的数据进行处理，从而实现了根据信道实际的传输资源长度确定编码数据，保证处理后的编码数据能够通过信道进行准确的传输。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简要介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域的普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本申请实施例信道编码方法流程图；
图2为本申请实施例第一种信道编码方法的整体流程图；
图3为本申请实施例第二种信道编码方法的整体流程图；
图4为本申请实施例第一种信道编码设备的结构示意图；
图5为本申请实施例第二种信道编码设备的结构示意图。
具体实施方式
为了使本申请的目的、技术方案和优点更加清楚，下面将结合附图本申请作进一步地详细描述，显然，所描述的实施例仅仅是本申请的一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
如图1所示，本申请实施例一种信道编码方法包括：
步骤101、根据信道的传输资源确定polar母码长度；
步骤102、根据polar母码长度对需要在信道传输的数据进行polar编码，得到目标编码数据；
步骤103、根据传输资源的实际承载的长度对目标编码数据进行处理；
步骤104、根据处理后的目标编码数据，确定需要在信道上传输的编码数据。
本申请实施例根据信道的传输资源确定合适的polar母码长度，并使用确定的polar母码长度对数据进行编码；并且根据传输资源的实际承载长度对编码后的数据进行处理，从而实现了根据信道实际的传输资源长度确定编码数据，保证处理后的编码数据能够通过信道进行准确的传输。
需要说明的是，本申请实施例给出的信道编码方法可以应用于物理广播信道，但是本申请实施例的信道编码方法并仅限于对物理广播信道编码，对其他信道也可以采用本申请实施例的信道编码方法。
下面以对物理广播信道编码方法为例进行说明。
其中，polar母码的长度为2的整数次幂。例如，polar母码的长度可以为2、4、8、……256、512、1024等。
传输资源的实际承载的长度为传输资源中实际用于传输数据的承载的比特数(bits)，是除去传输资源的DMRS(Demodulation Reference Signal，解调参考信号)开销之后的承载的比特数。
例如，传输资源的实际承载的长度为一个正交频分复用(Orthogonal Frequency Division Multiplex，OFDM)符号的实际承载的长度，并且一个OFDM符号占用288个载波，假设DMRS开销为1/3，则传输资源的实际承载的长度为288*2*2/3＝384bits。
可选的，在步骤101中，根据传输资源的实际承载的长度，从polar母码长度集合中选取一个；其中，传输资源的实际承载的长度为物理广播信道的部分或全部OFDM符号的实际承载的长度。
需要说明的是，若根据物理广播信道的部分OFDM符号的实际承载的长度确定polar母码长度，则在对编码数据进行处理时，也是根据该部分OFDM符号的实际承载的长度对编码数据进行处理的；若根据物理广播信道全部OFDM符号的实际承载的长度确定polar母码长度，则在对编码数据进行处理 时，也是根据全部OFDM符号的实际承载的长度对编码数据进行处理的。
下面针对不同的确定polar母码长度的方式，分别说明物理广播信道编码的方法。
方式一、根据物理广播信道的部分OFDM符号的实际承载的长度确定polar母码长度。
其中，物理广播信道使用多个OFDM符号传输；
可选的，在方式一中，根据物理广播信道的一个OFDM符号的实际承载的长度确定polar母码长度。
具体的，根据物理广播信道的部分OFDM符号的实际承载的长度，从polar母码长度集合中选取一个作为polar母码长度。
在从polar母码长度集合中选取一个作为polar母码长度时，可以任意选取一个作为polar母码长度。
较佳的，也可以从polar母码长度集合中选取与部分OFDM符号的实际承载的长度接近的长度作为polar母码长度；
具体的，可以选取大于该部分OFDM符号的实际承载的长度，且与该部分OFDM符号的实际承载的长度最接近的长度作为polar母码长度；或者选取小于该部分OFDM符号的实际承载的长度，且与该部分OFDM符号的实际承载的长度最接近的长度作为polar母码长度。
例如，根据一个OFDM符号的实际承载的长度确定polar母码长度。一个OFDM符号占用288个载波，假设DMRS开销为1/3，则一个OFDM符号的实际承载的长度为288*2*2/3＝384bits。polar母码长度集合中包含的可选长度为2的整数次幂。在确定polar母码长度时，可以选取256bits或者512bits作为polar母码长度。
可选的，物理广播信道中不同长度的payload(有效载荷)使用相同的polar母码长度。
其中，payload包括信息比特以及循环冗余校验(Cyclic Redundancy Check，CRC)部分。
例如，在payload的长度为70bits时，确定出的polar母码长度为512bits，则对于该物理广播信道中，在payload的长度为40bits时，仍然使用512bits的polar母码。
在确定出目标编码数据之后，根据polar母码长度对需要在物理广播信道传输的数据进行polar编码，得到目标编码数据，本申请实施例根据polar母码长度对需要在物理广播信道传输的数据进行polar编码的过程采用的是现有技术的方法，在此不再详细赘述。
需要说明的是，在使用polar母码长度对需要在物理广播信道传输的数据进行polar编码后，得到的目标编码数据的长度与polar母码长度相同。
在步骤103中，可选的，若部分OFDM符号的实际承载的长度不大于polar母码长度，根据部分OFDM符号的实际承载的长度对目标编码数据进行打孔或缩短操作；或
若部分OFDM符号的实际承载的长度大于polar母码长度，根据部分OFDM符号的实际承载的长度对目标编码数据进行重复操作。
下面分别进行说明。
1、若部分OFDM符号的实际承载的长度不大于polar母码长度，对目标编码数据进行打孔或缩短操作。
需要说明的是，对目标编码数据进行打孔或缩短操作后，得到的处理后的目标编码数据的长度为该部分OFDM符号的实际承载的长度。
其中，打孔操作以及缩短操作均是采用现有技术的方法，在此不再详细赘述。
例如，根据一个OFDM符号的实际承载的长度确定polar母码长度。一个OFDM符号占用288个载波，假设DMRS开销为1/3，则一个OFDM符号的实际承载的长度为288*2*2/3＝384bits。polar母码长度集合中包含的可选长度为2的整数次幂。在确定polar母码长度时，选取512bits作为polar母码长度。由于使用512bits对数据进行编码，得到的目标编码数据的长度为512bits，而一个OFDM符号的实际承载的长度384bits，因此，需要对目标编码数据进 行打孔或缩短操作。而经过打孔或缩短操作后的目标编码数据的长度为384bits。
需要说明的是，在一个OFDM符号的实际承载的长度等于polar母码长度时，可以理解为在对目标编码数据进行打孔操作时，打孔的长度为0bits；或者在对目标编码数据进行缩短操作时，缩短的长度为0bits。
2、若部分OFDM符号的实际承载的长度大于polar母码长度，对目标编码数据进行重复操作。
需要说明的是，对目标编码数据进行重复操作后，得到的处理后的目标编码数据的长度为该部分OFDM符号的实际承载的长度。
具体的，确定出一个OFDM符号的实际承载的长度与polar母码长度的差值，从目标编码数据选取出N bits的编码数据进行重复；其中N为一个OFDM符号的实际承载的长度与polar母码长度的差值。
例如，根据一个OFDM符号的实际承载的长度确定polar母码长度。一个OFDM符号占用288个载波，假设DMRS开销为1/3，则一个OFDM符号的实际承载的长度为288*2*2/3＝384bits。polar母码长度集合中包含的可选长度为2的整数次幂。在确定polar母码长度时，选取256bits作为polar母码长度。由于使用256bits对数据进行编码，得到的目标编码数据的长度为256bits，而一个OFDM符号的实际承载的长度384bits，因此，需要对目标编码数据进行重复操作。即从长度为256bits的目标编码数据中选取出128bits的编码数据，将长度为256bits的目标编码数据以及选取出的128bits的编码数据作为处理后的目标编码数据，则经过重复操作后的目标编码数据的长度为384bits。
又例如，根据一个OFDM符号的实际承载的长度确定polar母码长度。一个OFDM符号占用288个载波，假设DMRS开销为1/3，则一个OFDM符号的实际承载的长度为288*2*2/3＝384bits。polar母码长度集合中包含的可选长度为2的整数次幂。在确定polar母码长度时，选取128bits作为polar母码长度。由于使用128bits对数据进行编码，得到的目标编码数据的长度为128bits，而一个OFDM符号的实际承载的长度为384bits，因此，需要对目标编 码数据进行重复操作。由于一个OFDM符号的实际承载的长度与polar母码长度的差值为256bits，则在进行重复时，将长度为128bits的目标编码数据重复两次得到长度为384bits的处理后的目标编码数据。
可选的，本申请实施例在得到处理后的目标编码数据后，采用下列方式确定需要在信道上传输的编码数据：
将处理后的目标编码数据作为在部分OFDM符号上传输的编码数据，并将部分OFDM符号上传输的编码数据复制到信道的其他OFDM符号上。
具体的，物理广播信道使用两个OFDM符号传输。假设根据物理广播信道的一个OFDM符号的实际承载的长度确定polar母码长度；并根据一个OFDM符号的实际承载的长度对目标编码数据进行处理后，将处理后的目标编码数据作为在第一个OFDM符号上传输的编码数据，并把第一个OFDM符号上传输的编码数据直接复制到第二个OFDM符号上。
物理广播信道使用四个OFDM符号传输。假设根据物理广播信道的一个OFDM符号的实际承载的长度确定polar母码长度；并根据一个OFDM符号的实际承载的长度对目标编码数据进行处理后，将处理后的目标编码数据作为在第一个OFDM符号上传输的编码数据，并把第一个OFDM符号上传输的编码数据直接复制到该物理广播信道其他三个OFDM符号上。
或者，假设根据物理广播信道的两个OFDM符号的实际承载的长度确定polar母码长度；并根据两个OFDM符号的实际承载的长度对目标编码数据进行处理后，将处理后的目标编码数据作为在前两个OFDM符号上传输的编码数据，并把前两个OFDM符号上传输的编码数据直接复制到该物理广播信道后两个OFDM符号上。
在根据部分OFDM符号的实际承载的长度确定polar母码长度时，本申请实施例物理广播信道编码方法的整体流程图如图2所示。
步骤201、根据物理广播信道的部分OFDM符号的实际承载的长度确定polar母码长度；
步骤202、根据polar母码长度对需要在物理广播信道传输的数据进行 polar编码，得到目标编码数据；
步骤203、判断部分OFDM符号的实际承载的长度是否大于polar母码长度，若是，执行步骤204，若否，执行步骤205；
步骤204、根据部分OFDM符号的实际承载的长度对目标编码数据进行重复操作；执行步骤206；
步骤205、根据部分OFDM符号的实际承载的长度对目标编码数据进行打孔或缩短操作；
步骤206、将处理后的目标编码数据作为在部分OFDM符号上传输的编码数据，并将部分OFDM符号上传输的编码数据复制到物理广播信道的其他OFDM符号上。
下面以一个具体实施例说明本申请实施例的物理广播信道编码方法。
具体实施例1：
根据一个OFDM符号的实际承载的长度确定polar母码长度。
假设物理广播信道使用两个OFDM符号传输；并假设DMRS开销为1/3，一个OFDM符号占用288个载波，则一个OFDM符号的实际承载的长度为288*2*2/3＝384bits，在payload的长度K＝70bits时，等效码率R_eff_max＝70/384≈1/5.4。由于码率较高，从polar母码长度集合中选取512bits作为polar母码长度，使用512bits的polar母码长度对物理广播信道的payload的长度K＝70bits的数据进行编码，得到目标编码数据。由于一个OFDM符号的实际承载的长度小于polar母码长度，将目标编码数据进行打孔操作，得到长度为384bits的目标编码数据。将长度为384bits的目标编码数据作为第一个OFDM符号上传输的编码数据，并把384bits的目标编码数据直接复制到第二个OFDM符号上。
在payload的长度K＝40bits时，根据一个OFDM符号的实际承载的长度确定得到采用母码长度为512时的等效码率为R_eff_min1＝40/384≈1/9.5，若采用母码长度为256时的等效码率为R_eff_min2＝40/256≈1/6.4。对于短的信息比特长度，采用N＝512码率更低，能够有效提高物理广播信道的信号在衰 落信道中的接收质量。使用512bits的polar母码长度对物理广播信道的payload的长度K＝40bits的数据进行编码，得到目标编码数据。由于一个OFDM符号的实际承载的长度小于polar母码长度，将目标编码数据进行打孔操作，得到长度为384bits的目标编码数据。将长度为384bits的目标编码数据作为第一个OFDM符号上传输的编码数据，并把384bits的目标编码数据直接复制到第二个OFDM符号上。
方式二、根据物理广播信道的全部OFDM符号的实际承载的长度确定polar母码长度。
其中，物理广播信道使用多个OFDM符号传输；
可选的，在方式二中，根据物理广播信道的全部OFDM符号的实际承载的长度确定polar母码长度。
具体的，根据物理广播信道的全部OFDM符号的实际承载的长度，从polar母码长度集合中选取一个作为polar母码长度。
在从polar母码长度集合中选取一个作为polar母码长度时，可以任意选取一个作为polar母码长度。
较佳的，也可以从polar母码长度集合中选取与全部OFDM符号的实际承载的长度接近的长度作为polar母码长度；
具体的，可以选取大于该全部OFDM符号的实际承载的长度，且与该全部OFDM符号的实际承载的长度最接近的长度作为polar母码长度；或者选取小于该全部OFDM符号的实际承载的长度，且与该全部OFDM符号的实际承载的长度最接近的长度作为polar母码长度。
例如，物理广播信道使用两个OFDM符号传输，两个OFDM符号占用288*2＝576个载波，假设DMRS开销为1/3，则两个OFDM符号的实际承载的长度为576*2*2/3＝768bits。polar母码长度集合中包含的可选长度为2的整数次幂。在确定polar母码长度时，可以选取512bits或者1024bits作为polar母码长度。
可选的，物理广播信道中不同长度的payload使用相同或不同的polar母 码长度。
其中，payload包括信息比特以及CRC部分。
在实施中，对于物理广播信道中不同长度的payload均使用相同的polar母码长度；
例如，在payload的长度为70bits时，确定出的polar母码长度为512bits，则对于该物理广播信道中，在payload的长度为40bits时，仍然使用512bits的polar母码。
或者，对于物理广播信道中不同长度的payload均使用不同的polar母码长度；
例如，在payload的长度为70bits时，确定出的polar母码长度为1024bits，则对于该物理广播信道中，在payload的长度为50bits时，确定出的polar母码长度为512bits；在payload的长度为40bits时，确定出的polar母码长度为256bits。
或者，对于物理广播信道中多个不同长度的payload，部分不同长度的payload使用相同的polar母码长度。
例如，假设payload的长度为40-72bits，在实施中，可以确定出两种polar母码长度，例如确定出第一polar母码长度和第二polar母码长度。在payload的长度为40-55bits时，选择第一polar母码长度；在payload的长度为56-72bits时，选择第二polar母码长度。
在确定出目标编码数据之后，根据polar母码长度对需要在物理广播信道传输的数据进行polar编码，得到目标编码数据，本申请实施例根据polar母码长度对需要在物理广播信道传输的数据进行polar编码的过程采用的是现有技术的方法，在此不再详细赘述。
需要说明的是，在使用polar母码长度对需要在物理广播信道传输的数据进行polar编码后，得到的目标编码数据的长度与polar母码长度相同。
在步骤103中，可选的，若全部OFDM符号的实际承载的长度不大于polar母码长度，根据全部OFDM符号的实际承载的长度对目标编码数据进行打孔 或缩短操作；或
若全部OFDM符号的实际承载的长度大于polar母码长度，根据全部OFDM符号的实际承载的长度对目标编码数据进行重复操作。
下面分别进行说明。
1、若全部OFDM符号的实际承载的长度不大于polar母码长度，对目标编码数据进行打孔或缩短操作。
需要说明的是，对目标编码数据进行打孔或缩短操作后，得到的处理后的目标编码数据的长度为该全部OFDM符号的实际承载的长度。
其中，打孔操作以及缩短操作均是采用现有技术的方法，在此不再详细赘述。
例如，假设物理广播信道使用两个OFDM符号传输，两个OFDM符号占用288*2＝576个载波，假设DMRS开销为1/3，则一个OFDM符号的实际承载的长度为576*2*2/3＝768bits。polar母码长度集合中包含的可选长度为2的整数次幂。在确定polar母码长度时，选取1024bits作为polar母码长度。由于使用1024bits对数据进行编码，得到的目标编码数据的长度为1024bits，而一个OFDM符号的实际承载的长度768bits，因此，需要对目标编码数据进行打孔或缩短操作。而经过打孔或缩短操作后的目标编码数据的长度为768bits。
需要说明的是，在多个OFDM符号的实际承载的长度等于polar母码长度时，可以理解为在对目标编码数据进行打孔操作时，打孔的长度为0bits；或者在对目标编码数据进行缩短操作时，缩短的长度为0bits。
2、若全部OFDM符号的实际承载的长度大于polar母码长度，对目标编码数据进行重复操作。
需要说明的是，对目标编码数据进行重复操作后，得到的处理后的目标编码数据的长度为该全部OFDM符号的实际承载的长度。
具体的，确定出全部OFDM符号的实际承载的长度与polar母码长度的差值，从目标编码数据选取出N bits的编码数据进行重复；其中N为全部 OFDM符号的实际承载的长度与polar母码长度的差值。
例如，假设物理广播信道使用两个OFDM符号传输，两个OFDM符号占用288*2＝576个载波，假设DMRS开销为1/3，则两个OFDM符号的实际承载的长度为576*2*2/3＝768bits。polar母码长度集合中包含的可选长度为2的整数次幂。在确定polar母码长度时，选取512bits作为polar母码长度。由于使用512bits对数据进行编码，得到的目标编码数据的长度为512bits，而两个OFDM符号的实际承载的长度768bits，因此，需要对目标编码数据进行重复操作。即从长度为512bits的目标编码数据中选取出256bits的编码数据，将长度为512bits的目标编码数据以及选取出的256bits的编码数据作为处理后的目标编码数据，则经过重复操作后的目标编码数据的长度为768bits。
又例如，假设物理广播信道使用两个OFDM符号传输，两个OFDM符号占用288*2＝576个载波，假设DMRS开销为1/3，则两个OFDM符号的实际承载的长度为576*2*2/3＝768bits。polar母码长度集合中包含的可选长度为2的整数次幂。在确定polar母码长度时，选取256bits作为polar母码长度。由于使用256bits对数据进行编码，得到的目标编码数据的长度为256bits，而两个OFDM符号的实际承载的长度为768bits，因此，需要对目标编码数据进行重复操作。由于两个OFDM符号的实际承载的长度与polar母码长度的差值为512bits，则在进行重复时，将长度为256bits的目标编码数据重复两次得到长度为768bits的处理后的目标编码数据。
可选的，本申请实施例在得到处理后的目标编码数据后，采用下列方式确定需要在信道上传输的编码数据：
将处理后的目标编码数据作为需要在信道上传输的编码数据。
具体的，将处理后的目标编码数据作为在全部OFDM符号上传输的编码数据。
在根据全部OFDM符号的实际承载的长度确定polar母码长度时，本申请实施例物理广播信道编码方法的整体流程图如图3所示。
步骤301、根据物理广播信道的全部OFDM符号的实际承载的长度确定 polar母码长度；
步骤302、根据polar母码长度对需要在物理广播信道传输的数据进行polar编码，得到目标编码数据；
步骤303、判断全部OFDM符号的实际承载的长度是否大于polar母码长度，若是，执行步骤304，若否，执行步骤305；
步骤304、根据全部OFDM符号的实际承载的长度对目标编码数据进行重复操作；执行步骤306；
步骤305、根据全部OFDM符号的实际承载的长度对目标编码数据进行打孔或缩短操作；
步骤306、将处理后的目标编码数据直接作为需要在物理广播信道上传输的编码数据。
下面以一个具体实施例说明本申请实施例的物理广播信道编码方法。
具体实施例2：
根据全部OFDM符号的实际承载的长度确定polar母码长度；并且物理广播信道中不同长度的payload使用相同的polar母码长度。
假设物理广播信道使用两个OFDM符号传输；并假设DMRS开销为1/3，两个OFDM符号占用288*2＝576个载波，则两个OFDM符号的实际承载的长度为576*2*2/3＝768bits，在payload的长度K＝70bits时，从polar母码长度集合中选取512bits作为polar母码长度，等效码率为R_eff_min＝70/512≈1/7.3。使用512bits的polar母码长度对物理广播信道的payload的长度K＝70bits的数据进行编码，得到目标编码数据。由于两个OFDM符号的实际承载的长度大于polar母码长度，将目标编码数据进行重复操作，得到长度为768bits的目标编码数据。将长度为768bits的目标编码数据直接作为在物理广播信道上传输的编码数据。
在payload的长度K＝40bits时，根据两个OFDM符号的实际承载的长度确定得到采用母码长度为512时的等效码率为R_eff_min＝40/512≈1/13，有利于提高物理广播信道在低信噪比的性能。使用512bits的polar母码长度对物 理广播信道的payload的长度K＝40bits的数据进行编码，得到目标编码数据。由于两个OFDM符号的实际承载的长度大于polar母码长度，将目标编码数据进行重复操作，得到长度为768bits的目标编码数据。将长度为768bits的目标编码数据直接作为在物理广播信道上传输的编码数据。
具体实施例3：
根据全部OFDM符号的实际承载的长度确定polar母码长度；并且物理广播信道中不同长度的payload使用不同的polar母码长度。
假设物理广播信道使用两个OFDM符号传输；并假设DMRS开销为1/3，两个OFDM符号占用288*2＝576个载波，则两个OFDM符号的实际承载的长度为576*2*2/3＝768bits，在payload的长度K＝70bits时，从polar母码长度集合中选取1024bits作为polar母码长度，等效码率为R_eff_min＝70/1024≈1/14.6。使用1024bits的polar母码长度对物理广播信道的payload的长度K＝70bits的数据进行编码，得到目标编码数据。由于两个OFDM符号的实际承载的长度小于polar母码长度，将目标编码数据进行打孔操作，得到长度为768bits的目标编码数据。将长度为768bits的目标编码数据直接作为需要在物理广播信道传输的编码数据。
而在payload的长度K＝40bits时，则从polar母码长度集合中选取512bits作为polar母码长度，等效码率为R_eff_min＝40/512≈1/13。使用512bits的polar母码长度对物理广播信道的payload的长度K＝40bits的数据进行编码，得到目标编码数据。由于两个OFDM符号的实际承载的长度大于polar母码长度，将目标编码数据进行重复操作，得到长度为768bits的目标编码数据。将长度为768bits的目标编码数据直接作为需要在物理广播信道传输的编码数据。
基于同一发明构思，本申请实施例中还提供了一种信道编码设备，由于该设备解决问题的原理与该方法相似，因此该设备的实施可以参见系统的实施，重复之处不再赘述。
如图4所示，本申请实施例第一种信道编码设备，包括：
确定模块401，用于根据信道的传输资源确定polar母码长度；
编码模块402，用于根据polar母码长度对需要在信道传输的数据进行polar编码，得到目标编码数据；
处理模块403，用于根据传输资源的实际承载的长度对目标编码数据进行处理；
传输模块404，用于根据处理后的目标编码数据，确定需要在信道上传输的编码数据。
可选的，确定模块401，具体用于：
根据传输资源的实际承载的长度，从polar母码长度集合中选取一个；其中，传输资源的实际承载的长度为信道的部分或全部OFDM符号的实际承载的长度。
可选的，若确定模块401根据信道的部分OFDM符号的实际承载的长度确定polar母码长度；
处理模块403，具体用于：
若部分OFDM符号的实际承载的长度不大于polar母码长度，根据部分OFDM符号的实际承载的长度对目标编码数据进行打孔或缩短操作；或
若部分OFDM符号的实际承载的长度大于polar母码长度，根据部分OFDM符号的实际承载的长度对目标编码数据进行重复操作。
可选的，传输模块404，具体用于：
将处理后的目标编码数据作为在部分OFDM符号上传输的编码数据，并将部分OFDM符号上传输的编码数据复制到信道的其他OFDM符号上。
可选的，部分OFDM符号为信道的一个OFDM符号。
可选的，若确定模块401根据信道的全部OFDM符号的实际承载的长度确定polar母码长度；
处理模块403，具体用于：
若全部OFDM符号的实际承载的长度不大于polar母码长度，根据全部OFDM符号的实际承载的长度对目标编码数据进行打孔或缩短操作；或
若全部OFDM符号的实际承载的长度大于polar母码长度，根据全部 OFDM符号的实际承载的长度对目标编码数据进行重复操作。
可选的，传输模块404，具体用于：
将处理后的目标编码数据作为需要在信道上传输的编码数据。
可选的，信道中不同长度的有效载荷payload使用相同的polar母码长度。
可选的，信道中不同长度的payload使用的polar母码长度相同或不同。
在本申请实施例中，上述各模块均可以采用处理器等实体器件来实现。
如图5所示，本申请实施例第二种信道编码设备，包括：
处理器501，用于通过收发机502发送和接收数据，并读取存储器504中的程序，执行下列过程：
根据信道的传输资源确定polar母码长度；根据polar母码长度对需要在信道传输的数据进行polar编码，得到目标编码数据；根据传输资源的实际承载的长度对目标编码数据进行处理；根据处理后的目标编码数据，确定需要在信道上传输的编码数据。
收发机502，用于在处理器501的控制下接收和发送数据。
可选的，处理器501，具体用于：
根据传输资源的实际承载的长度，从polar母码长度集合中选取一个；其中，传输资源的实际承载的长度为信道的部分或全部OFDM符号的实际承载的长度。
可选的，若处理器501根据信道的部分OFDM符号的实际承载的长度确定polar母码长度；
处理器501，具体用于：
若部分OFDM符号的实际承载的长度不大于polar母码长度，根据部分OFDM符号的实际承载的长度对目标编码数据进行打孔或缩短操作；或
若部分OFDM符号的实际承载的长度大于polar母码长度，根据部分OFDM符号的实际承载的长度对目标编码数据进行重复操作。
可选的，处理器501，具体用于：
将处理后的目标编码数据作为在部分OFDM符号上传输的编码数据，并 将部分OFDM符号上传输的编码数据复制到信道的其他OFDM符号上。
可选的，部分OFDM符号为信道的一个OFDM符号。
可选的，若处理器501根据信道的全部OFDM符号的实际承载的长度确定polar母码长度；
处理器501，具体用于：
若全部OFDM符号的实际承载的长度不大于polar母码长度，根据全部OFDM符号的实际承载的长度对目标编码数据进行打孔或缩短操作；或
若全部OFDM符号的实际承载的长度大于polar母码长度，根据全部OFDM符号的实际承载的长度对目标编码数据进行重复操作。
可选的，处理器501，具体用于：
将处理后的目标编码数据作为需要在信道上传输的编码数据。
可选的，信道中不同长度的有效载荷payload使用相同的polar母码长度。
可选的，信道中不同长度的payload使用的polar母码长度相同或不同。
在图5中，总线架构(用总线500来代表)，总线500可以包括任意数量的互联的总线和桥，总线500将包括由处理器501代表的一个或多个处理器和存储器504代表的存储器的各种电路链接在一起。总线500还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口503在总线500和收发机502之间提供接口。收发机502可以是一个元件，也可以是多个元件，比如多个接收器和发送器，提供用于在传输介质上与各种其他装置通信的单元。经处理器501处理的数据通过天线505在无线介质上进行传输，进一步，天线505还接收数据并将数据传送给处理器501。
处理器501负责管理总线500和通常的处理，还可以提供各种功能，包括定时，外围接口，电压调节、电源管理以及其他控制功能。而存储器504可以被用于存储处理器501在执行操作时所使用的数据。
可选的，处理器501可以是CPU(Center Processing Unit，中央处埋器)、ASIC(Application Specific Integrated Circuit，专用集成电路)、FPGA(Field －Programmable Gate Array，现场可编程门阵列)或CPLD(Complex Programmable Logic Device，复杂可编程逻辑器件)。
本申请实施例提供的信道编码方法可以应用于网络设备。其中，网络设备可以为基站(例如，接入点)，指接入网中在空中接口上通过一个或多个扇区与无线终端通信的设备。基站可用于将收到的空中帧与IP分组进行相互转换，作为无线终端与接入网的其余部分之间的路由器，其中接入网的其余部分可包括网际协议(IP)网络。基站还可协调对空中接口的属性管理。例如，基站可以是GSM(Global System for Mobile Communication，全球移动通信系统)或CDMA(Code Division Multiple Access，码多分址)中的基站(BTS，Base Transceiver Station)，也可以是WCDMA(Wideband Code Division Multiple Access，宽带码多分址)中的基站(NodeB)，还可以是LTE(Long Time Evolution，长期演进)中的演进型基站(NodeB或eNB或e-NodeB，evolutional Node B)，本申请实施例中不做限定。
本申请实施例还提供一种计算机存储介质，计算机存储介质可以是计算机能够存取的任何可用介质或数据存储设备，包括但不限于磁性存储器(例如软盘、硬盘、磁带、磁光盘(MO)等)、光学存储器(例如CD、DVD、BD、HVD等)、以及半导体存储器(例如ROM、EPROM、EEPROM、非易失性存储器(NAND FLASH)、固态硬盘(SSD))等。例如，该计算机存储介质可以是非易失性的，即断电后内容不丢失。
并且，该计算机存储介质中存储软件程序，该软件程序在被一个或多个处理器读取并执行时可实现本申请实施例上面任何一种信道编码方法的方案。
以上参照示出根据本申请实施例的方法、装置(系统)和/或计算机程序产品的框图和/或流程图描述本申请。应理解，可以通过计算机程序指令来实现框图和/或流程图示图的一个块以及框图和/或流程图示图的块的组合。可以将这些计算机程序指令提供给通用计算机、专用计算机的处理器和/或其它可编程数据处理装置，以产生机器，使得经由计算机处理器和/或其它可编程数 据处理装置执行的指令创建用于实现框图和/或流程图块中所指定的功能/动作的方法。
相应地，还可以用硬件和/或软件(包括固件、驻留软件、微码等)来实施本申请。更进一步地，本申请可以采取计算机可使用或计算机可读存储介质上的计算机程序产品的形式，其具有在介质中实现的计算机可使用或计算机可读程序代码，以由指令执行系统来使用或结合指令执行系统而使用。在本申请上下文中，计算机可使用或计算机可读介质可以是任意介质，其可以包含、存储、通信、传输、或传送程序，以由指令执行系统、装置或设备使用，或结合指令执行系统、装置或设备使用。
显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (20)

  1. 一种信道编码方法，其特征在于，该方法包括：
    根据信道的传输资源确定极化polar母码长度；
    根据所述polar母码长度对需要在所述信道传输的数据进行polar编码，得到目标编码数据；
    根据所述传输资源的实际承载的长度对所述目标编码数据进行处理；
    根据处理后的目标编码数据，确定需要在所述信道上传输的编码数据。
  2. 如权利要求1所述的方法，其特征在于，所述根据信道的传输资源确定polar母码长度，包括：
    根据所述传输资源的实际承载的长度，从polar母码长度集合中选取一个；
    其中，所述传输资源的实际承载的长度为所述信道的部分或全部正交频分复用OFDM符号的实际承载的长度。
  3. 如权利要求2所述的方法，其特征在于，若根据所述信道的部分OFDM符号的实际承载的长度确定所述polar母码长度；
    所述根据所述传输资源的实际承载的长度对所述目标编码数据进行处理，包括：
    若所述部分OFDM符号的实际承载的长度不大于所述polar母码长度，根据所述部分OFDM符号的实际承载的长度对所述目标编码数据进行打孔或缩短操作；或
    若所述部分OFDM符号的实际承载的长度大于所述polar母码长度，根据所述部分OFDM符号的实际承载的长度对所述目标编码数据进行重复操作。
  4. 如权利要求3所述的方法，其特征在于，所述根据处理后的目标编码数据，确定需要在所述信道上传输的编码数据，包括：
    将处理后的目标编码数据作为在所述部分OFDM符号上传输的编码数据，并将所述部分OFDM符号上传输的编码数据复制到所述信道的其他 OFDM符号上。
  5. 如权利要求3或4所述的方法，其特征在于，所述部分OFDM符号为所述信道的一个OFDM符号。
  6. 如权利要求5所述的方法，其特征在于，所述信道中不同长度的有效载荷payload使用相同的polar母码长度。
  7. 如权利要求2所述的方法，其特征在于，若根据所述信道的全部OFDM符号的实际承载的长度确定所述polar母码长度；
    所述根据所述传输资源的实际承载的长度对所述目标编码数据进行处理，包括：
    若所述全部OFDM符号的实际承载的长度不大于所述polar母码长度，根据所述全部OFDM符号的实际承载的长度对所述目标编码数据进行打孔或缩短操作；或
    若所述全部OFDM符号的实际承载的长度大于所述polar母码长度，根据所述全部OFDM符号的实际承载的长度对所述目标编码数据进行重复操作。
  8. 如权利要求7所述的方法，其特征在于，所述根据处理后的目标编码数据，确定需要在所述信道上传输的编码数据，包括：
    将处理后的目标编码数据作为需要在所述信道上传输的编码数据。
  9. 如权利要求7或8所述的方法，其特征在于，所述信道中不同长度的payload使用的polar母码长度相同或不同。
  10. 一种信道编码设备，其特征在于，包括：
    确定模块，用于根据信道的传输资源确定polar母码长度；
    编码模块，用于根据所述polar母码长度对需要在所述信道传输的数据进行polar编码，得到目标编码数据；
    处理模块，用于根据所述传输资源的实际承载的长度对所述目标编码数据进行处理；
    传输模块，用于根据处理后的目标编码数据，确定需要在所述信道上传 输的编码数据。
  11. 如权利要求10所述的设备，其特征在于，所述确定模块，具体用于：
    根据所述传输资源的实际承载的长度，从polar母码长度集合中选取一个；其中，所述传输资源的实际承载的长度为所述信道的部分或全部OFDM符号的实际承载的长度。
  12. 如权利要求11所述的设备，其特征在于，若所述确定模块根据所述信道的部分OFDM符号的实际承载的长度确定所述polar母码长度；
    所述处理模块，具体用于：
    若所述部分OFDM符号的实际承载的长度不大于所述polar母码长度，根据所述部分OFDM符号的实际承载的长度对所述目标编码数据进行打孔或缩短操作；或
    若所述部分OFDM符号的实际承载的长度大于所述polar母码长度，根据所述部分OFDM符号的实际承载的长度对所述目标编码数据进行重复操作。
  13. 如权利要求12所述的设备，其特征在于，所述传输模块，具体用于：
    将处理后的目标编码数据作为在所述部分OFDM符号上传输的编码数据，并将所述部分OFDM符号上传输的编码数据复制到所述信道的其他OFDM符号上。
  14. 如权利要求12或13所述的设备，其特征在于，所述部分OFDM符号为所述信道的一个OFDM符号。
  15. 如权利要求14所述的设备，其特征在于，所述信道中不同长度的有效载荷payload使用相同的polar母码长度。
  16. 如权利要求11所述的设备，其特征在于，若所述确定模块根据所述信道的全部OFDM符号的实际承载的长度确定所述polar母码长度；
    所述处理模块，具体用于：
    若所述全部OFDM符号的实际承载的长度不大于所述polar母码长度，根据所述全部OFDM符号的实际承载的长度对所述目标编码数据进行打孔或 缩短操作；或
    若所述全部OFDM符号的实际承载的长度大于所述polar母码长度，根据所述全部OFDM符号的实际承载的长度对所述目标编码数据进行重复操作。
  17. 如权利要求16所述的设备，其特征在于，所述传输模块，具体用于：
    将处理后的目标编码数据作为需要在所述信道上传输的编码数据。
  18. 如权利要求16或17所述的设备，其特征在于，所述信道中不同长度的payload使用的polar母码长度相同或不同。
  19. 一种信道编码设备，其特征在于，包括：
    存储器，用于存储程序指令；
    处理器，用于调用所述存储器中存储的程序指令，按照获得的程序执行：
    根据信道的传输资源确定极化polar母码长度；
    根据所述polar母码长度对需要在所述信道传输的数据进行polar编码，得到目标编码数据；
    根据所述传输资源的实际承载的长度对所述目标编码数据进行处理；
    根据处理后的目标编码数据，确定需要在所述信道上传输的编码数据。
  20. 一种计算机存储介质，其特征在于，所述计算机存储介质存储有计算机可执行指令，所述计算机可执行指令用于使所述计算机执行权利要求1至9任一项所述的方法。
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