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WO2018177258A1 - Procédé et dispositif de traitement d'informations d'identification - Google Patents

Procédé et dispositif de traitement d'informations d'identification Download PDF

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Publication number
WO2018177258A1
WO2018177258A1 PCT/CN2018/080539 CN2018080539W WO2018177258A1 WO 2018177258 A1 WO2018177258 A1 WO 2018177258A1 CN 2018080539 W CN2018080539 W CN 2018080539W WO 2018177258 A1 WO2018177258 A1 WO 2018177258A1
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WO
WIPO (PCT)
Prior art keywords
bit
information
bits
identification information
polarization code
Prior art date
Application number
PCT/CN2018/080539
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English (en)
Chinese (zh)
Inventor
罗荻
庞继勇
马征
Original Assignee
华为技术有限公司
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Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2018177258A1 publication Critical patent/WO2018177258A1/fr

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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
    • 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
    • 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
    • H04L1/0041—Arrangements at the transmitter end
    • 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
    • H04L1/0045—Arrangements at the receiver end

Definitions

  • the present application relates to communication technologies, and in particular, to a method and a device for processing identification information.
  • the sending device sends the control information to the receiving device or the receiving device group
  • the identifier information of the receiving device needs to be sent to the receiving device, or the identifier information of the receiving device group is sent to the receiving device group.
  • the prior art sends the identification information of the receiving device to the receiving device as part of the control information, or sends the identification information of the receiving device group to the receiving device group as part of the control information.
  • the identifier information of the receiving device is 8 bits.
  • the control information itself is 16 bits. If the identification information of the receiving device is used as part of the control information, it is necessary to add 8 bits of identification information based on 16 bits of the control information, so that the size of the control information is from the original 16 The bit is increased to 24 bits.
  • the receiving device may determine, according to the identification information in the control information, whether the control information is sent to the sending device by the sending device.
  • the identification information of the receiving device or the identification information of the receiving device group as part of the control information increases the overhead of the control information.
  • the embodiment of the present application provides a method and a device for processing identification information, so as to save the overhead of control information.
  • the application provides a method for processing identification information, including:
  • the transmitting device encodes the information bits and the fixed bits as the polarization code encoding input bits to obtain a polarization code encoding output bit, where the fixed bit carries the first identification information;
  • the transmitting device transmits the polarization code encoded output bit to the destination device.
  • the information bit includes a target information bit and a parity bit of the target information bit, wherein the parity bit of the target information bit is used to carry the second identification information.
  • the first identification information is used to identify a destination device
  • the second identification information is used to identify the sending device.
  • the first identification information is used to identify the sending device, and the second identification information is used to identify the destination device.
  • the first identifier information is used to identify a receiving device group
  • the second identifier information is used to identify a destination device in the receiving device group.
  • the transmitting device encodes the information bits and the fixed bits as polarization coded input bits, including:
  • the transmitting device uses the second identification information to scramble the check bits of the target information bits to obtain the scrambled check bits.
  • the transmitting device uses the target information bit and the scrambled parity bit as information bits, and performs polarization code encoding on the information bits and the fixed bits.
  • the bit corresponding to the first identifier information is part of the fixed bit
  • the bit corresponding to the first identifier information is the fixed bit
  • the partial bit of the bit corresponding to the first identifier information that is equal to the fixed bit is the fixed bit.
  • the sending device sends the indication information to the destination device, where the indication information is used to indicate the position of the bit corresponding to the first identifier information in the fixed bit, or the indication information is used by Indicates the position of the partial bit in the fixed bit.
  • the bits corresponding to the first identification information are sequentially mapped to the polarized channel with high reliability to high reliability corresponding to the fixed bit according to the order of the valid bits from low to high;
  • the bits in the partial bits are sequentially mapped to the polarized channel with high reliability to high reliability corresponding to the fixed bit in descending order of the effective bits.
  • the present application provides a method for processing identification information, including:
  • a polarization code encoded output bit sent by the transmitting device where the polarization code encoding output bit is obtained by the transmitting device encoding the information bit and the fixed bit as a polarization code encoding input bit by using a polarization code, where The fixed bit carries the first identification information;
  • the receiving device decodes the polarization code encoded output bit to obtain information bits carried in the polarization code encoded output bit;
  • the receiving device checks the information bit and determines whether to receive the target information bit in the information bit according to the verification result.
  • the information bit includes the target information bit and a check bit of the target information bit, wherein the check bit of the target information bit is used to carry the second identification information.
  • the first identification information is used to identify a destination device
  • the second identification information is used to identify the sending device.
  • the receiving device decodes the polarization code encoded output bits, including:
  • the receiving device decodes the polarization code encoded output bit by using the identification information of the receiving device.
  • the receiving device checks the information bit, and determines whether to receive the target information bit in the information bit according to the verification result, including:
  • the receiving device uses the identification information of one of the plurality of known transmitting devices to verify the information bit;
  • the receiving device is the destination device, and receives the target information bit in the information bit.
  • it also includes:
  • the receiving device checks the information bits by using identification information of another known one of the plurality of known transmitting devices.
  • it also includes:
  • the indication information sent by the sending device, where the indication information is used to indicate a position of the bit corresponding to the first identifier information in the fixed bit, or the indication information is used to indicate a bit corresponding to the first identifier information The position of some of the bits in the fixed bit.
  • the first identification information is used to identify the sending device, and the second identification information is used to identify the destination device.
  • the receiving device decodes the polarization code encoded output bits, including:
  • the receiving device decodes the polarization code encoded output bits by using identification information of one of a plurality of known transmitting devices.
  • the receiving device checks the information bit, and determines whether to receive the target information bit in the information bit according to the verification result, including:
  • the receiving device uses the identification information of the receiving device to verify the information bit;
  • the receiving device is the destination device, and receives the target information bit in the information bit.
  • it also includes:
  • the receiving device decodes the polarization code encoded output bits by using identification information of another known one of the plurality of known transmitting devices.
  • the first identification information is used to identify a receiving device group
  • the second identification information is used to identify a destination device in the receiving device group.
  • the receiving device decodes the polarization code encoded output bits, including:
  • the receiving device decodes the polarization code encoded output bit by using the identification information of the receiving device group.
  • the receiving device checks the information bit, and determines whether to receive the target information bit in the information bit according to the verification result, including:
  • the receiving device uses the identification information of the receiving device to verify the information bit;
  • the receiving device is the destination device, and receives the target information bit in the information bit.
  • it also includes:
  • the receiving device checks the information bits by using the identification information of other receiving devices in the receiving device group.
  • the application provides a communication device, including: a processing unit and a sending unit;
  • the processing unit is configured to perform polarization code encoding on the information bits and the fixed bits as the polarization code encoding input bits, to obtain the polarization code encoding output bits, where the fixed bits carry the first identification information;
  • the transmitting unit is configured to send the polarization code encoded output bit to the destination device.
  • the information bit includes a target information bit and a parity bit of the target information bit, wherein the parity bit of the target information bit is used to carry the second identification information.
  • the first identification information is used to identify a destination device
  • the second identification information is used to identify the communication device.
  • the first identification information is used to identify the communication device
  • the second identification information is used to identify the destination device.
  • the first identification information is used to identify a receiving device group
  • the second identification information is used to identify a destination device in the receiving device group.
  • the bit corresponding to the first identification information is part of the fixed bit; if the length of the fixed bit is equal to the first And the bit corresponding to the first identifier information is the fixed bit; if the length of the fixed bit is smaller than the bit length corresponding to the first identifier information, the bit corresponding to the first identifier information is The partial bits of the fixed bit length are the fixed bits.
  • the sending unit is further configured to: send, to the destination device, indication information, where the indication information is used to indicate a position of the bit corresponding to the first identifier information in the fixed bit, or the indication information is used by Indicates the position of the partial bit in the fixed bit.
  • the application provides a communication device, including: a receiving unit and a processing unit;
  • the receiving unit is configured to receive a polarization code encoded output bit sent by the sending device, where the polarization code encoding output bit is obtained by the transmitting device encoding the information bit and the fixed bit as a polarization code encoding input bit to perform polarization code encoding,
  • the fixed bit carries the first identification information
  • the processing unit is configured to decode the polarization code encoded output bit, obtain the information bit carried in the polarization code encoded output bit, check the information bit, and determine whether to receive the information bit according to the verification result.
  • Target information bits in information bits.
  • the information bit includes the target information bit and a check bit of the target information bit, wherein the check bit of the target information bit is used to carry the second identification information.
  • the first identification information is used to identify a destination device
  • the second identification information is used to identify the sending device.
  • the processor is specifically configured to decode the polarization code encoded output bits using the identification information of the communication device.
  • the processing unit is specifically configured to verify the information bit by using identification information of one of the plurality of known transmitting devices; if the verification is successful, determining that the communication device is for the purpose
  • the device receives the target information bits in the information bits.
  • the processing unit is further configured to: verify the information bits by using identification information of another known one of the plurality of known transmitting devices.
  • the receiving unit is further configured to: receive the indication information sent by the sending device, where the indication information is used to indicate a position of the bit corresponding to the first identifier information in the fixed bit, or the indication information And a position indicating a part of the bits corresponding to the first identification information in the fixed bit.
  • the application provides a communication device, including: a processor and a transmitter;
  • the processor is configured to perform polarization code encoding on the information bits and the fixed bits as the polarization code encoding input bits, to obtain the polarization code encoding output bits, where the fixed bits carry the first identification information;
  • the transmitter is configured to transmit the polarization code encoded output bit to a destination device.
  • the information bit includes a target information bit and a parity bit of the target information bit, wherein the parity bit of the target information bit is used to carry the second identification information.
  • the first identification information is used to identify a destination device
  • the second identification information is used to identify the communication device.
  • the first identification information is used to identify the communication device
  • the second identification information is used to identify the destination device.
  • the first identification information is used to identify a receiving device group
  • the second identification information is used to identify a destination device in the receiving device group.
  • the bit corresponding to the first identification information is part of the fixed bit; if the length of the fixed bit is equal to the first And the bit corresponding to the first identifier information is the fixed bit; if the length of the fixed bit is smaller than the bit length corresponding to the first identifier information, the bit corresponding to the first identifier information is The partial bits of the fixed bit length are the fixed bits.
  • the transmitter is further configured to: send, to the destination device, indication information, where the indication information is used to indicate a position of the bit corresponding to the first identifier information in the fixed bit, or the indication information Used to indicate the position of the partial bit in the fixed bit.
  • the application provides a communication device, including: a receiver and a processor;
  • the receiver is configured to receive a polarization code encoded output bit sent by the transmitting device, where the polarization code encoding output bit is obtained by the transmitting device encoding the information bit and the fixed bit as a polarization code encoding input bit by using a polarization code, wherein The fixed bit carries the first identification information;
  • the processor is configured to decode the polarization code encoded output bit, obtain the information bit carried in the polarization code encoded output bit, check the information bit, and determine whether to receive the information according to the verification result.
  • the target information bits in the bits are configured to decode the polarization code encoded output bit, obtain the information bit carried in the polarization code encoded output bit, check the information bit, and determine whether to receive the information according to the verification result.
  • the information bit includes the target information bit and a check bit of the target information bit, wherein the check bit of the target information bit is used to carry the second identification information.
  • the first identification information is used to identify a destination device
  • the second identification information is used to identify the sending device.
  • the processor is specifically configured to decode the polarization code encoded output bit by using identification information of the communication device.
  • the processor is specifically configured to verify the information bit by using identification information of one of the plurality of known sending devices; if the verification is successful, determining that the communication device is the The destination device receives the target information bits in the information bits.
  • the processor is further configured to: verify the information bits by using identification information of another known one of the plurality of known transmitting devices.
  • the receiver is further configured to: receive the indication information sent by the sending device, where the indication information is used to indicate a position of the bit corresponding to the first identifier information in the fixed bit, or the indication The information is used to indicate the position of a part of the bits corresponding to the first identification information in the fixed bit.
  • the present application provides a computer readable storage medium having stored therein instructions that, when executed on a computer, cause the computer to perform the methods described in the above aspects.
  • the present application provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the methods described in the various aspects above.
  • the application provides a system on chip, the system on which the chip is applicable to a network device, the system on chip comprising: at least one communication interface, at least one processor, at least one memory, the communication interface, the memory, and the processing
  • the devices are interconnected by a bus that causes the network device to perform the method provided by the first aspect of the present application by executing instructions stored in the memory.
  • the application provides a system on chip, the system on which the chip is applicable to a terminal device, the system on chip comprising: at least one communication interface, at least one processor, at least one memory, the communication interface, the memory, and the processing
  • the devices are interconnected by a bus that causes the terminal device to perform the method provided by the second aspect of the present application by executing instructions stored in the memory.
  • the embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, and the processor is configured to encode the information bit and the fixed bit as a polarization code encoding input bit to obtain a polarization.
  • the code encodes an output bit, wherein the fixed bit carries the first identification information; the communication interface is configured to send the polarization code encoded output bit to the destination device.
  • the processor may be specifically configured to perform or process the methods provided by the first aspect of the application.
  • the embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, where the communication interface is configured to receive a polarization code encoded output bit, and the polarization code encodes an output bit to fix the information bit and fix
  • the bit is obtained by performing polarization code encoding as a polarization code encoding input bit, wherein the fixed bit carries first identification information; the processor is configured to decode the polarization code encoded output bit to obtain the polarization code encoding
  • the information bits carried in the output bits are used for verifying the information bits, and based on the check result, determining whether to receive the target information bits in the information bits.
  • the information bits and the fixed bits are used as the polarization code encoding input bits by the transmitting device to perform polarization code encoding, to obtain the polarization code encoding output bits, carrying the identification information in the fixed bits, and the polarization code
  • the coded output bit is sent to the destination device, and the identification information may not be added to the control information as compared with the identification information as part of the control information, thereby saving the overhead of the control information.
  • FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present application.
  • FIG. 2 is a schematic structural diagram of a Polar encoder according to an embodiment of the present application.
  • FIG. 3 is a schematic flowchart of a method for processing identification information according to an embodiment of the present disclosure
  • FIG. 4 is a schematic diagram of a polarization code encoding according to an embodiment of the present application.
  • FIG. 5 is a schematic diagram of another polarization code encoding according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic diagram of a fixed bit carrying identification information according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic diagram of another polarization code encoding according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic diagram of still another polarization code encoding according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic diagram of information bit carrying identification information according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic diagram of descrambling provided by an embodiment of the present application.
  • FIG. 11 is a schematic diagram of another communication system according to an embodiment of the present application.
  • FIG. 12 is a schematic diagram of still another polarization code encoding according to an embodiment of the present disclosure.
  • FIG. 13 is a schematic diagram of still another communication system according to an embodiment of the present application.
  • FIG. 14 is a schematic structural diagram of a communication apparatus according to an embodiment of the present disclosure.
  • FIG. 15 is a schematic structural diagram of another communication apparatus according to an embodiment of the present disclosure.
  • FIG. 16 is a schematic structural diagram of a communication device according to an embodiment of the present disclosure.
  • FIG. 17 is a schematic structural diagram of another communication device according to an embodiment of the present application.
  • FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present disclosure, which includes a network device 11 and a user equipment (UE), where the network device 11 may be a network side device, for example, wireless fidelity (Wireless). -Fidelity, Wi-Fi) access point AP, base station for next generation communication, such as 5G gNB or small station, micro station, TRP, and may also be a relay station, an access point, an in-vehicle device, a wearable device, and the like.
  • a network side device for example, wireless fidelity (Wireless).
  • Wi-Fi Wi-Fi
  • base station for next generation communication such as 5G gNB or small station, micro station, TRP, and may also be a relay station, an access point, an in-vehicle device, a wearable device, and the like.
  • the terminal device 12 in this embodiment of the present application may refer to an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user device.
  • the access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), with wireless communication.
  • Polar Code is a channel coding that can implement symmetric binary input discrete memoryless channels, such as Binary Symmetric Channel (BSC) and Binary Erasure Channel (BEC) capacity. Code constructor. Under the Binary Memoryless Symmetric Channel (BMSC), the polarization code can reach the Shannon channel capacity and has low coding and decoding complexity.
  • the core idea of the Polar code is Channel Polarization. Channel polarization considers a group of independent time slots of the BMSC as a set of mutually independent channels, and introduces correlation through channel division and channel combining operations, thereby obtaining a new set of binary input polarization channels with interdependence.
  • the channel capacity of the obtained polarized channel will be polarized, that is, the capacity of a part of the channel will tend to 1 (no-noise channel), and the rest will tend to At 0 (full noise channel).
  • the encoding strategy of the Polar code is precisely the application of the characteristics of the polarized channel.
  • the non-noise channel is used to transmit useful information, and the full-noise channel transmits the agreed information or does not transmit information, thereby ensuring an error rate close to zero.
  • the reliability of the polarized channel In the process of constructing the Polar code, it is necessary to determine the quality of the polarized channel by the specific evaluation index, that is, the reliability of the polarized channel.
  • Commonly used indicators for evaluating channel reliability include channel symmetric capacity, Bhattachary parameter, and Block Error Probability (BLER).
  • BLER Block Error Probability
  • the polarization code encoder is called a Polar encoder, and the polarization code is also called a Polar code. It is assumed that the number of input ports of the Polar encoder is N, one input port corresponds to one input bit, and the sequence to be coded is length. K information bit sequence, information bit sequence is recorded as Bi; both the encoder at the transmitting end and the decoder at the receiving end are known to have a fixed bit sequence, the fixed bit is also called a frozen bit, and the fixed bit sequence is recorded as Bf, fixed.
  • the length and value of the bit sequence Bf are not limited. Alternatively, the fixed bit sequence Bf is an all-zero sequence and has a length of NK.
  • Bi and Bf form the input bit sequence Bin of the Polar encoder, wherein the position of Bi in Bin is not randomly placed, but is corresponding to the K highly polarized channels in the Polar encoder.
  • the K input ports, the remaining NK input ports are used to place Bf.
  • the positions of Bi and Bf in Bin are relatively concentrated, and there is a good boundary between the two.
  • the Polar encoder performs a series of bit operations on Bin to obtain a coded bit sequence Bout of length N.
  • FIG. 2 is a schematic structural diagram of a Polar encoder according to an embodiment of the present application.
  • the number of input ports of the Polar encoder is 8, the input port number is from 1 to 8, the information bit sequence is 0101, the length of the information bit sequence is 4, the fixed bit sequence is 0000, and the length of the fixed bit sequence is 4, here is only a schematic illustration, the embodiment of the present application does not limit the length and value of the information bit sequence, and does not limit the length and value of the fixed bit sequence.
  • the length and value of the information bit sequence It can also be other values, and the length and value of the fixed bit sequence can also be other values.
  • 8 input ports correspond to 8 polarized channels, and the reliability of 8 polarized channels is determined according to the Barthel parameters.
  • the reliability of the eight polarized channels is roughly arranged in descending order, wherein the reliability of the fourth polarized channel is greater than the reliability of the fifth polarized channel, and four information bits. (0, 1, 0, 1) are respectively located at the input port of the Polar encoder with a small value of the Barthel parameter, for example, input port 8, input port 7, input port 6, input port 4.
  • 4 fixed bits (0 , 0, 0, 0) are respectively located on the input port of the Polar encoder with a higher value of the Barthel parameter, for example, input port 5, input port 3, input port 2, and input port 1.
  • the polarization code encoder may implement a freeze bit through an internal structure, and its external input is a fixed-length valid input bit. Assuming that the internal hardware is solidified to implement the F-bit freeze bit, the fixed input length of the external input valid input bit is N, which is equivalent to the total number of frozen bits that the encoder actually uses for encoding and transporting is N-K+F, the total coded input. The number of bits is N+F.
  • the encoder input port described in the present case can be understood as an effective input port of the encoder, that is, the internal input port corresponding to the frozen bit realized by the internal curing is not considered, and only the input terminal corresponding to the external input bit is concerned.
  • the control channel is relative to the data channel, and the control channel is used to transmit control information about the data channel, such as where the data is transmitted (time-frequency resources), the size of the data block, and the modulation and coding format used (Modulation and Coding Scheme, MCS), etc.
  • MCS Modulation and Coding Scheme
  • the control information is added with 8 bits of identification information on the basis of 16 bits, so that the size of the control information is increased from the original 16 bits to 24 bits.
  • the receiving device may determine, according to the identification information in the control information, whether the control information is sent to the sending device by the sending device.
  • the identification information of the receiving device or the identification information of the receiving device group as part of the control information increases the overhead of the control information.
  • the embodiment of the present application provides a method for processing identification information, which is applicable to a fifth generation (5th generation, 5G) communication system and a subsequent communication system.
  • 5G fifth generation
  • FIG. 3 is a schematic flowchart diagram of a method for processing identification information according to an embodiment of the present disclosure. As shown in FIG. 3, the method specifically includes the following steps:
  • Step S301 The transmitting device performs polarization code encoding on the information bit and the fixed bit as the polarization code encoding input bit to obtain a polarization code encoding output bit, where the fixed bit carries the first identification information.
  • the information bits and the fixed bits can be used as input bits of the Polar encoder, and the transmitting device can perform polarization code encoding on the information bits and the fixed bits through the Polar encoder.
  • the Polar encoder Information bits can be divided into the following possible situations:
  • the information bits of the Polar encoder only include the target information bits.
  • the target information bits are control information bits, and the control information may be in a Physical Downlink Control Channel (PDCCH).
  • the control information bits are assumed to be ⁇ 0 ⁇ 1 ⁇ 2 ... ⁇ A-1 , and the length thereof is A, which is only a schematic description.
  • the control information bits are also It can be other bits and can be other values in length.
  • the target information bits are control information bits
  • the control information bits ⁇ 0 ⁇ 1 ⁇ 2 ... ⁇ A-1 are used as information bits of the Polar encoder
  • the Polar encoder pairs information bits ⁇ 0 ⁇ 1 ⁇ 2 ... ⁇ A-1 and fixed bits are subjected to polarization code encoding to obtain polarization coded output bits of the Polar encoder output as shown in FIG.
  • the information bits of the Polar encoder include the target information bits and the check bits of the target information bits.
  • the target information bits are the above-mentioned control information bits, and the control information bits are, for example, ⁇ 0 ⁇ . 1 ⁇ 2 ... ⁇ A-1
  • the check bit is specifically a Cyclic Redundancy Check (CRC) bit of the control information bit.
  • CRC Cyclic Redundancy Check
  • the embodiment of the present application uses a 16-bit CRC bit, as shown in FIG. 5 .
  • the CRC bits are b A + 0 b A + 1 b A + 2 ... b A + 15 and have a length of 16, which is only a schematic illustration, and does not limit the length and bit value of the CRC bits of the control information. As shown in FIG.
  • control information bits ⁇ 0 ⁇ 1 ⁇ 2 ... ⁇ A-1 and the CRC bits b A+0 b A+1 b A+2 ... b A+15 of the control information bits are used together as a Polar encoder.
  • the information bits, the Polar encoder performs polarization code encoding on the information bits and the fixed bits to obtain the polarization code encoded output bits output by the Polar encoder as shown in FIG.
  • the fixed bit of the Polar encoder is not all 0 bits, but carries the first identification information, where the first identification information is used for the following embodiments.
  • the second identification information involved is distinguished.
  • the first identifier information may be the identifier information of the receiving device, the identifier information of the sending device, and the identifier information of the receiving device group.
  • the sending device may be the network device 11 as shown in FIG.
  • the receiving device group may be a logical set composed of a plurality of terminal devices 12 as shown in FIG.
  • the transmitting device and the receiving device may also be two different terminal devices.
  • the identifier information of the receiving device may be used to identify the receiving user
  • the identifier information of the receiving device group may be used to identify the receiving user group
  • the identifier information of the sending device may be used to identify the sending user.
  • the fixed bits of the Polar encoder carrying the first identification information can be divided into the following possible situations:
  • the length of the fixed bit is greater than the bit length corresponding to the first identification information, and the bit corresponding to the first identification information is a part of the fixed bit.
  • the embodiment of the present application takes the first identification information as the identifier information of the receiving device as an example, and introduces a method for carrying the identification information of the fixed bit carrying the receiving device. It is assumed that the length of the fixed bit is M, and the identifier information of the receiving device is C 1 C 2 . C n , whose length is n and M is greater than n, carries the identification information C 1 C 2 . . . C n of the receiving device in the fixed bits of all 0s, and can be divided into the following feasible implementation manners:
  • One achievable way is to replace the first n zeros of all 0 fixed bits of length M with C 1 C 2 ... C n , as shown in sequence 6 or sequence 52, in sequence 51. , C 1 C 2 ... C n positive order, in sequence 52, C 1 C 2 ... C n are arranged in reverse order.
  • Another achievable way is to replace the middle n zeros of all 0 fixed bits of length M with C 1 C 2 ... C n , as shown in sequence 6 or sequence 54 in sequence 6, in sequence 53 in, C 1 C 2 ?? C n positive sequence arranged in the sequence 54, C 1 C 2 ?? C n reverse order, the application of the present embodiment is not limited to C 1 C 2 ?? C n first bits C 1 or C n ... the position of the first bit C n of C 2 C 1 in the fixed bit.
  • Yet another achievable manner is to place identification information of the receiving device, such as C 1 C 2 . . . C n , in the fixed bits according to the reliability of the polarized channel corresponding to the fixed bits.
  • the information bits occupy the input port with a small Pap address parameter in the Polar encoder
  • the fixed bit occupies the input port with a higher Pap s parameter in the Polar encoder, that is, the polarization corresponding to the input port occupied by the fixed bit.
  • the reliability of the channel is lower than the reliability of the polarized channel corresponding to the input port occupied by the information bits.
  • the fixed bit carries the identification information of the receiving device, for example, C 1 C 2 . . .
  • the identification information C 1 C 2 . . . C n is set at a position where the polarization channel reliability is high in the fixed bit.
  • the fixed bit has a length of M.
  • the fixed bit corresponds to M polarized channels, and one polarized channel corresponds to an input port of a Polar encoder, and the fixed bit corresponds to M of the Polar encoder.
  • Input port if the P-port parameters corresponding to the M input ports are different from each other, the M Pap parameters can be sorted, sorted in ascending order, or sorted in descending order. Sorting from small to large, you can select the first n Pap parameters from the sort.
  • the position of the fixed bit corresponding to the n Pap parameters is the position at which the identification information C 1 C 2 . . . C n is placed.
  • the input of the Polar encoder includes fixed bits and information bits.
  • the Bar code of the input port of the Polar encoder is large to small, that is, from top to bottom, the Polar encoder
  • the reliability of the polarized channel is from low to high.
  • the information bits occupy the input port with a small Pap address parameter in the Polar encoder.
  • the fixed bit occupies the input port with higher Pap parameter in the Polar encoder due to the fixed bit.
  • the length is M
  • the fixed bit corresponds to the M input ports of the Polar encoder
  • the n input ports near the information bits in the M input ports can be used to place the identification information C 1 C 2 ... C n , and the placement manner can be There are two possible scenarios:
  • the identification information C 1 C 2 ... C is sequentially placed according to the order of the polarization channel reliability from high to low.
  • the valid bits of n are from low to high bits. If the identification information C 1 C 2 ... C n , the least significant bit is C n and the most significant bit is C 1 , the position and order of the identification information C 1 C 2 ... C n in the fixed bits are as shown in FIG. 7 . Show.
  • the identification information C 1 C 2 is sequentially placed according to the order of the polarization channel reliability from high to low...
  • the bit of the valid bit of C n is from high to low. If the identification information C 1 C 2 ... C n , the least significant bit is C n and the most significant bit is C 1 , the identification information C 1 C 2 ... C n
  • the position and ordering in fixed bits is shown in Figure 8.
  • the probability that the low effective bits of the identification information of different devices are the same is less than the probability that the high effective bits are the same.
  • the identification information of the device 1 is 24 bits
  • the identification information of the device 2 is 24 bits, the 24 bits.
  • the probability that the low significant bit 12 bits of device 1 and the low significant bit 12 bits of device 2 are the same is less than the high significant bit 12 bits of device 1 and the high of device 2
  • the probability that the valid bits are the same for 12 bits. Since the reliability of the polarized channel corresponding to the fixed bit is lower than the reliability of the polarized channel corresponding to the information bit, the identification information C 1 C 2 . . .
  • C n can be normally placed in the order of the effective bit from low to high.
  • the position of the polarized channel in the fixed bit is from high to low. That is, in general, the identification information may be placed in the fixed bits in the manner as shown in FIG. 7, but the case where the identification information is placed in the fixed bits in the manner as shown in FIG. 8 is not excluded.
  • the length of the fixed bit is greater than the bit length corresponding to the first identification information
  • the length of the fixed bit is equal to the bit length corresponding to the first identification information
  • the first The bit corresponding to the identification information is the fixed bit, that is, the fixed bits are all used to place the first identification information, and there is no remaining 0 bits.
  • the manner in which the first identifier information is placed in the fixed bit may be in the manner shown in FIG. 7 or FIG. 8 , and details are not described herein again.
  • a further possible case is that the length of the fixed bit is smaller than the bit length corresponding to the first identification information, and the part of the bit corresponding to the first identification information that is equal to the fixed bit is the fixed bit.
  • the manner in which the partial bits of the bits corresponding to the first identification information are placed in the fixed bits may also be in the manner shown in FIG. 7 or FIG. 8 , and details are not described herein again.
  • the remaining bits in the bits corresponding to the first identification information may be placed in the information bits of the Polar encoder, optionally, the first
  • the remaining bits in the bits corresponding to the identification information are placed in the control information bits in the information bits or in the CRC bits of the control information bits.
  • the length of the fixed bit is greater than the bit length corresponding to the first identification information, and the first identifier information is carried in the fixed bits of all 0s, as shown in FIG. 6 and FIG.
  • the first identifier information is carried in the fixed bits of all 0s, as shown in FIG. 6 and FIG.
  • replacing the last n 0s of the fixed bits of all 0s with C 1 C 2 . . . C n and obtaining the first identification information as shown in FIG. 4 or as shown in FIG. 5 Fixed bits. It can be seen that the bit corresponding to the first identification information replaces the 0 bit in the corresponding position in the fixed bit of all 0s. After the fixed bit carries the first identification information, the length of the fixed bit itself does not change.
  • the Polar encoder can perform polarization code encoding on the information bits and the fixed bits carrying the first identification information.
  • the length of the polarization code encoded output bits obtained after the polarization code encoding is the sum of the length M of the fixed bits and the length of the information bits. If the information bit of the Polar encoder includes only the control information bits, the length of the polarization code encoded output bit output by the Polar encoder is M+A; if the information bits include the control information bits and the CRC bits of the control information bits, the CRC bits The length is 16, and the length of the polarization code encoded output bit output by the Polar encoder is M+A+16.
  • Step S302 The transmitting device sends the polarization code encoded output bit to the destination device.
  • the first identifier information carried by the fixed bit of the Polar encoder may be the identifier information of the destination device, and the sending device may send the polarization of the output of the Polar encoder as shown in FIG. 4 or 5 to the destination device.
  • the code encodes the output bit, and the receiving device that receives the polarized code encoded output bit may or may not be the destination device.
  • the receiving device may decode the polarization code encoded output bit by using the identification information of the receiving device itself, and the decoding process may be the reverse process of the polarization code encoding process.
  • the receiving device can obtain the information bits carried in the output code of the polarization code, and the information bits obtained by the decoding device can also be divided into the following possible situations:
  • the information bits obtained after decoding by the receiving device only include the control information bits ⁇ 0 ⁇ 1 ⁇ 2 ... ⁇ A-1 .
  • the information bits obtained by the decoding device include the control information bits and the CRC bits of the control information bits, and the receiving device can perform CRC check on the control information bits by using the CRC bits.
  • the receiving device is the destination device, and the control information is sent to the receiving device, and the receiving device can receive the control information; if the verification is unsuccessful, the receiving device is not the destination device, and the control information is not sent. For the receiving device, the receiving device does not receive the control information.
  • the information bits occupy the input port with a small Pap address parameter in the Polar encoder
  • the fixed bit occupies the input port with a higher Pap s parameter in the Polar encoder, that is, the polarization corresponding to the input port occupied by the fixed bit.
  • the reliability of the channel is lower than the reliability of the polarized channel corresponding to the input port occupied by the information bit. Therefore, information known to the receiving device can be placed in the fixed bit of the Polar encoder, and the receiving information is placed in the information bit of the Polar encoder.
  • the receiving device knows the identification information of the receiving device itself, the identification information of the receiving device may be placed in the fixed bit of the Polar encoder, and the information bit of the Polar encoder may be placed in the information bit of the Polar encoder.
  • the receiving device can decode the polarization code encoded output bit according to the identification information of the receiving device, and obtain the information bit, further from the information bit. Get information that is unknown.
  • the sending device further The indication information may be sent to the destination device.
  • the indication information is used to indicate the position of the bit corresponding to the first identifier information in the fixed bit, or when fixed.
  • the indication information is used to indicate the position of the partial bit of the first identification information in the fixed bit. As shown in FIG.
  • the position of the bit corresponding to the first identification information in the fixed bit is a predetermined position of the transmitting device, and the transmitting device may transmit the indication information to the destination device to indicate the predetermined position.
  • the placing rule of the first identifier information in the fixed bit may be the default of the sending and receiving parties, and the sending device does not need to send the indication information to the destination device, and the receiving device receives the polarization code encoding output.
  • the information bit and the fixed bit are used as the polarization code code input bit to perform polarization code coding, and the polarization code code output bit is obtained, and the identification information is carried in the fixed bit. And transmitting the polarization code encoded output bit to the destination device, the identification information may not be added in the control information compared to using the identification information as part of the control information, thereby saving the overhead of the control information.
  • the identification information of the destination device or the receiving device group can also be used as the scrambling code pair control information bit.
  • the CRC bit 92 is scrambled, that is, the CRC bit of the control information bit is carried in the scrambling manner, and the identifier information may be a Radio Network Temporary Identity (RNTI), and the scrambling code is a scrambling code.
  • the operation may be bit XOR, that is, modulo 2 is added, as shown in FIG. 9, x 0 x 1 x 2 ...
  • x 15 represents the RNTI of the destination device or the receiving device group
  • the CRC bit b A of the control information bit is 0 b A+1 b A+2 ... b A+15 and the identification information x 0 x 1 x 2 ... x 15 are added by modulo 2 to obtain the scrambled CRC bits D A+0 D A+1 D A+2 ... D A+15
  • the control information bits ⁇ 0 ⁇ 1 ⁇ 2 ... ⁇ A-1 are re-recorded as D 0 D 1 D 2 ... D A-1 , that is, the values of ⁇ 0 and D 0 are the same , except that the symbols are different, and the subsequent bits are deduced by analogy.
  • D 0 D 1 D 2 ... D A-1 and D A+0 D A+1 D A+2 ... D A+15 together constitute a control information bit carrying the scrambled CRC bits.
  • the identifier information can also be carried by the method of scrambling the CRC bits of the control information bits by using the identifier information of the destination device or the receiving device group as the scrambling code.
  • the receiving device or the receiving device group When the receiving device or the receiving device group receives the sequence D 0 D 1 D 2 ... D A-1 D A+0 D A+1 D A+2 ... D A+15 , first use the identity of the receiving device itself The information or the identification information of the receiving device group itself performs a descrambling operation on the sequence D 0 D 1 D 2 ... D A-1 D A+0 D A+1 D A+2 ... D A+15 , descrambling operation And the scrambling operation may be the reverse operation, as shown in FIG. 10, y 0 y 1 y 2 ...
  • y 15 represents the RNTI of the receiving device itself or the RNTI of the receiving device group itself, the receiving device or the receiving device group De-scrambling the scrambled CRC bits D A+0 D A+1 D A+2 ... D A+15 with y 0 y 1 y 2 ... y 15 , specifically, the descrambling operation may be The specific or modulo 2 is added, and the descrambled CRC bits d A+0 d A+1 d A+2 ......d A+15 are obtained , and the descrambled CRC bits d A+0 d A+ are used. 1 d A+2 ......d A+15 checks the control information bits D 0 D 1 D 2 ...
  • the receiving device is the destination device or the receiving device
  • the group is the destination receiving device group, and the receiving device or the receiving device group can receive the control information; If the verification fails, it indicates that the receiving device is not the destination device, or the receiving device group is not the destination receiving device group, and the receiving device or the receiving device group does not receive the control information.
  • FIG. 11 is a schematic diagram of another communication system according to an embodiment of the present disclosure, which includes a network device 110, a terminal device 111, a terminal device 112, and a terminal device 113.
  • the network device 110 and the terminal device 111 can perform uplink and downlink transmission, specifically, The network device 110 may transmit control information and/or data information to the terminal device 111 through the downlink, and the terminal device 111 may transmit the data information to the network device 110 through the uplink.
  • the network device 110 and the terminal device 112 can also perform uplink and downlink transmission.
  • the terminal device 111, the terminal device 112, and the terminal device 113 can also directly communicate with each other.
  • the terminal device 111 directly transmits control information and/or data information to the terminal device 113, and the terminal device 112 directly transmits control information to the terminal device 113. And/or data information, the terminal device 111 directly transmits control information and/or data information to the terminal device 112, and therefore, for the terminal device 111, its corresponding receiving device is not unique, and for the terminal device 113, The corresponding sending device is not unique.
  • LTE Long Term Evolution
  • D2D Device to Device
  • the link used for communication is called an edge link, a side link, or a D2D link.
  • an edge link, a side link, or a D2D link is also called a Sidelink.
  • the terminal device 12 when the network device 11 or the base station 12 transmits control information or data information to the terminal device 12, the terminal device 12 explicitly knows that the base station is a transmitting device, so the foregoing embodiment passes the Polar encoder.
  • the manner in which the fixed bit carries an identification information or carries an identification information in the CRC bit of the control information bit by means of scrambling is applicable to the scenario shown in FIG. 1.
  • the sending device is not unique, or the receiving device is not unique. Therefore, the manner of carrying an identification information in the foregoing embodiment is no longer applicable to the scenario shown in FIG. In the scenario shown in FIG.
  • FIG. 11 introduces a method of carrying two identification information in control information and/or data information.
  • the terminal device 111 can carry the identification information of the transmitting device, that is, the terminal device 111 itself, and the identification information of the receiving device, that is, the terminal device 113, in an implementation manner in which the terminal device 111 is in the control information in the control channel of the D2D link.
  • the part of the identification information carrying the terminal device 113 carries the identification information of the terminal device 113 in the header of the Media Access Control (MAC) Protocol Data Unit (PDU) in the data channel of the D2D link.
  • MAC Media Access Control
  • PDU Protocol Data Unit
  • the remaining bits and the complete transmitting device that is, the identification information of the terminal device 111.
  • the identification information of the terminal device 111 and the identification information of the terminal device 113 respectively correspond to 24 bits, and 8 of the 24 bits corresponding to the identification information of the terminal device 113 are carried in the control information as part of the control information.
  • the eight bits carried in the control information may be the upper 8 bits of the 24 bits, or may be the lower 8 bits, and may also be the 8-bit bits in other locations, which is not specifically limited in this embodiment of the present application.
  • the header of the MAC PDU carries the remaining 16 bits of the identification information of the terminal device 113, and 24 bits of the identification information of the terminal device 111.
  • the manner of carrying the two identification information has the following disadvantages: 1) carrying a part of the bits of the identification information of the receiving device in the control information, although the number of bits added in the control information is reduced, the control information is added. 2) the identification information as part of the control information and the manner in which the identification information is included in the MAC PDU header information, so that the non-target device can also read the identification information and the corresponding control information and the MAC PDU, which is a security risk; If the 8 bits of the same location of the identification information of the two receiving devices, for example, the 8 bits of the low significant bit are the same, then any one of the two receiving devices cannot directly determine which one of the destination devices is based on the control information, and It is necessary to obtain the complete identification information of the receiving device by demodulating the MAC PDU header information in the data channel, so as to finally confirm the destination device, thus increasing the processing delay of the receiving device, especially the non-target device.
  • the embodiment of the present application provides another method for processing identification information.
  • the polarization code may carry two different identification information, and the two different identification information may be used. An identification information and a second identification information are distinguished. The following describes the polarization code carrying two different identification information in conjunction with FIG.
  • the fixed bit of the polarization code may carry the first identifier information, which is consistent with the manner described in the foregoing embodiment, and is not described here again.
  • the length of the fixed bit is larger than the first identifier in the embodiment of the present application.
  • the manner of the bit length corresponding to the information, the first identification information C 1 C 2 . . . C n being carried in the fixed bits of all 0s may be selected as shown in any one of FIG. 6, FIG. 7 and FIG.
  • the last n 0s of the fixed bits of all 0s are replaced by C 1 C 2 . . . C n , and the fixed bits carrying the first identification information as shown in FIG. 12 are obtained.
  • the information bits of the Polar encoder include a target information bit and a check bit of the target information bit, where the check bit of the target information bit is used to carry the second identification information.
  • the target information bit is the foregoing control information bit
  • the information bit includes a control information bit and a CRC bit of the control information bit
  • the second identifier information is carried in the CRC bit of the control information bit by using a scrambling manner.
  • the second identification information is used as a scrambling code to scramble the CRC bits of the control information bits.
  • ⁇ 0 ⁇ 1 ⁇ 2 ... ⁇ A-1 represents control information bits
  • the control information is a transmitting device.
  • the target information transmitted to the destination device b A+0 b A+1 b A+2 ... b A+15 represents the CRC bit of the control information bit, and 16-bit CRC bits are used in the embodiment of the present application, in other implementations. In the example, CRC bits of other lengths can also be used.
  • x 0 x 1 x 2 ... x 15 denotes second identification information, which will control the CRC bits of the information bits b A+0 b A+1 b A+2 ......b A+15 and the second identification information x 0 x 1 x 2 ... x 15 performs modulo 2 addition, resulting in scrambled CRC bits D A+0 D A+1 D A+2 ...
  • D A+15 which will control information bits ⁇ 0 ⁇ 1 ⁇ 2 ... ⁇ A-1 is re-recorded as D 0 D 1 D 2 ... D A-1 , that is, the values of ⁇ 0 and D 0 are the same, except that the symbol representation is different, and the subsequent bits are deduced by analogy.
  • D 0 D 1 D 2 ... D A-1 and D A+0 D A+1 D A+2 ... D A+15 together constitute the information bits of the Polar encoder.
  • the Polar encoder performs polarization code encoding on the information bits and the fixed bits.
  • the polarization code output output bit of the Polar encoder is simultaneously Carrying the first identification information and the second identification information.
  • the transmitting device may send the polarization code encoded output bit carrying the first identification information and the second identification information to the receiving device through the control channel.
  • the first identification information and the second identification information may be classified into the following two possible situations:
  • a possible case (referred to as the first case) is that the first identification information is used to identify the transmitting device, and the second identification information is used to identify the destination device.
  • the identification information of the sending device is the first identification information C 1 C 2 . . . C n
  • the identification information of the destination device is the second identification information x 0 x 1 x 2 . . . x 15
  • Polar encoder pair The information bits and the fixed bits are subjected to polarization code encoding to obtain polarization coded output bits.
  • the receiving device is aware of the identification information of all possible transmitting devices. As shown in FIG.
  • the corresponding transmitting device is not unique to the terminal device 113, and may be the terminal device 111. It is the terminal device 112, but the terminal device 113 knows the identification information of the terminal device 111 and the identification information of the terminal device 112.
  • the receiving device receives the polarization code encoded output bit, the following steps may be performed:
  • Step 11 Select identification information of one sending device from the identification information of the plurality of sending devices that are known;
  • Step 12 Perform Polarization decoding on the polarization code encoded output bit by using the selected identification information of the transmitting device to obtain information bits carried in the polarization code encoded output bit.
  • the information bits obtained after the Polar decoding include the control information bits and the scrambled CRC bits of the control information bits.
  • Step 13 using the identification information of the receiving device itself to descramble the CRC bit scrambled by the control information bit, and obtain the CRC bit of the descrambled control information bit, and the descrambling process is as shown in FIG. The process will not be described here.
  • Step 14 Perform CRC check on the control information bits by using the descrambled CRC bits.
  • the CRC is successful, it indicates that the receiving device is the destination device, and the receiving device receives the control information, and the identification information of the sending device selected during the Polar decoding is the identification information of the sending device that sends the control information. If the CRC check is unsuccessful, the identification information of the other sending device is selected from the identification information of the plurality of known transmitting devices, and steps 11 to 14 are performed cyclically until the CRC check is successful. If the identification information of the plurality of sending devices has been traversed and the correct CRC check has not been obtained, it indicates that the control information carried by the control channel is not sent to the receiving device, that is, the receiving device is not the destination device.
  • the terminal device 111 transmits the polarization code encoded output bit as shown in FIG. 12 to the terminal device 113 through the control channel of the D2D link, and the fixed bit of the Polar encoder carries the transmitting device, that is, the terminal device 111.
  • the identification information, the CRC bit of the control information bit in the information bit of the Polar encoder carries the identification information of the destination device, that is, the terminal device 113.
  • the terminal device 113 knows the identification information of the terminal device 111 and the identification information of the terminal device 112.
  • the terminal device 113 receives the polarization code encoded output bit in the control channel, the identification information of the slave terminal device 111 and the identifier of the terminal device 112.
  • an identification information such as identification information of the terminal device 112
  • to perform polar decoding on the polarization code encoded output bit to obtain information bits carried in the polarization code encoded output bit, the information bit including control information bits and the control
  • the scrambled CRC bits of the information bits is descrambled by using the identification information of the terminal device 113 itself.
  • the descrambling process is as shown in FIG. 10, and the CRC bit of the descrambled control information bit is obtained, and then the descrambled
  • the CRC bit performs a CRC check on the control information bit.
  • the terminal device 113 selects the identification information of another known terminal device 111 again.
  • the polarization code encoded output bits are subjected to Polar decoding to obtain information bits carried in the polarization code encoded output bits, the information bits including control information bits and scrambled CRC bits of the control information bits.
  • the scrambled CRC bit is descrambled by using the identification information of the terminal device 113 itself to obtain the CRC bit of the descrambled control information bit, and then the CRC is used to perform the CRC correction on the control information bit by using the descrambled CRC bit. If the CRC check is successful, it indicates that the terminal device 111 is the transmitting device that transmits the control information, and the terminal device 113 is the destination device.
  • the first identification information is used to identify the destination device
  • the second identification information is used to identify the sending device.
  • the identification information of the destination device is the first identification information C 1 C 2 . . . C n
  • the identification information of the transmitting device is the second identification information x 0 x 1 x 2 . . . x 15 , Polar encoder pair
  • the information bits and the fixed bits are subjected to polarization code encoding to obtain polarization coded output bits.
  • the receiving device is aware of the identification information of all possible transmitting devices. As shown in FIG.
  • the corresponding transmitting device is not unique to the terminal device 113, and may be the terminal device 111. It is the terminal device 112, but the terminal device 113 knows the identification information of the terminal device 111 and the identification information of the terminal device 112.
  • the receiving device receives the polarization code encoded output bit, the following steps may be performed:
  • Step 21 The receiving device decodes the polarization code encoded output bit by using the identification information of the receiving device itself, and obtains information bits carried in the polarization code encoding output bit, where the information bit includes a control information bit and the control information bit.
  • the scrambled CRC bits The scrambled CRC bits.
  • Step 22 Select identification information of one sending device from the identification information of the plurality of sending devices that are known;
  • Step 23 Verify the information bit by using the selected identification information of the sending device. Specifically, the scrambled CRC bit is descrambled by using the selected identification information of the sending device to obtain the CRC bit of the descrambled control information, and then the CRC bit of the descrambled signal is used to perform CRC on the control information bit. check.
  • the receiving device is the destination device, and the receiving device receives the control information, and the identification information of the sending device selected when the information bit is verified is the identifier of the sending device that sends the control information. information. If the CRC check is unsuccessful, it is not necessary to perform the Polar decoding again, and the identification information of the other sending device is directly selected from the identification information of the plurality of known transmitting devices, and steps 22 and 23 are performed cyclically until the CRC check succeeds. . If the identification information of the plurality of sending devices has been traversed and the correct CRC check has not been obtained, it indicates that the control information carried by the control channel is not sent to the receiving device, that is, the receiving device is not the destination device.
  • the terminal device 111 transmits the polarization code encoded output bit as shown in FIG. 12 to the terminal device 113 through the control channel of the D2D link, and the fixed bit of the Polar encoder carries the destination device, that is, the terminal device 113.
  • the identification information the CRC bit of the control information bit in the information bit of the Polar encoder carries the identification information of the transmitting device, that is, the terminal device 111.
  • the terminal device 113 knows the identification information of the terminal device 111 and the identification information of the terminal device 112.
  • the terminal device 113 uses the identification information of the terminal device 113 itself.
  • the coded output bit is subjected to Polar decoding to obtain information bits carried in the polarization code coded output bits, the information bits including control information bits and scrambled CRC bits of the control information bits.
  • the identification information such as the identification information of the terminal device 112
  • the identification information of the terminal device 112 is selected from the identification information of the terminal device 111 and the identification information of the terminal device 112 to descramble the scrambled CRC bits of the control information bits, and the descrambling process is as shown in FIG.
  • the CRC bit of the descrambled control information bit is obtained, and then the control information bit is CRC checked by using the descrambled CRC bit. If the CRC check is unsuccessful, the terminal device 112 does not send the control information.
  • the transmitting device the terminal device 113 does not need to perform the Polar decoding again, and directly uses the identification information of another known terminal device 111 to descramble the scrambled CRC bits of the control information bits to obtain the descrambled Controlling the CRC bits of the information bits, and then performing CRC check on the control information bits by using the descrambled CRC bits. If the CRC check is successful, the terminal device 111 is the transmitting device that transmits the control information, and the terminal device 113 is the destination. device.
  • the first identification information is used to identify the destination device, and the second identification information is used to identify the sending device, and the receiving device only needs to use its own identification information to identify the polarization code.
  • the coded output bits are subjected to a Polar decoding, and then the information bits can be verified by traversing the identification information of the plurality of transmitting devices.
  • the first identification information is used to identify the sending device
  • the second identification information is used to identify the destination device
  • the receiving device needs to perform the Polar decoding multiple times. Therefore, compared to the first case, the second This situation reduces the amount of computation of the receiving device and reduces the processing complexity of the receiving device.
  • FIG. 13 is a schematic diagram of still another communication system according to an embodiment of the present application, including a network device 130, a terminal device 131, a terminal device 132, and a terminal device 133, and a terminal device.
  • the terminal device 132 and the terminal device 133 constitute a receiving device group.
  • the number of terminal devices included in one receiving device group is not limited to three.
  • the network device 130 may send the control information and/or the data information to the receiving device group, and each terminal device in the receiving device group may receive the control information and/or the data information that is sent by the network device 130.
  • 130 Sending control information to the destination device in the receiving device group as an example.
  • the network device 130 acts as a transmitting device to perform polarization code encoding on information bits and fixed bits through a Polar encoder, and the fixed bit of the Polar encoder is carried.
  • the identification information of the receiving device group that is, the first identification information C 1 C 2 ... C n is used to identify the receiving device group, and the network device 130 controls the identification information of the destination device, such as the terminal device 132, in the receiving device group.
  • the CRC bits of the information bits are scrambled, that is, the second identification information x 0 x 1 x 2 ... x 15 as shown in FIG. 12 is used to identify the destination device, that is, the terminal device 132 in the receiving device group.
  • the network device 130 performs polarization code encoding on the information bits and the fixed bits by the Polar encoder to obtain the polarization code encoded output bits, and transmits the polarization code encoded output bits to the receiving device group through the control channel, and each of the receiving device groups
  • the terminal device receives the polarization code encoded output bits sent by the network device 130.
  • each terminal device in the receiving device group knows the identification information of the receiving device group and the identification information of other terminal devices in the receiving device group
  • a receiving device such as the terminal device 131 in the receiving device group receives
  • the polarization code coded output bit is first subjected to Polar decoding by using the identification information of the receiving device group, and the information bit carried in the polarization code coded output bit is obtained, and the information bit includes Controlling the information bits and the scrambled CRC bits of the control information bits, and then descrambling the scrambled CRC bits of the control information bits by using the identification information of the terminal device 131 itself to obtain the descrambled CRC bits, and using The CRC bit after the descrambling performs a CRC check on the control information bit.
  • the CRC check fails, it indicates that the control information is not sent to the terminal device 131, and the terminal device 131 does not need to perform the Polar decoding again, and directly adopts the receiving device group.
  • the network device 130 When the network device 130 performs polarization code encoding on the information bits and the fixed bits by the Polar encoder to obtain the polarization code encoded output bits, and transmits the polarization code encoded output bits to the receiving device group through the control channel, if the terminal device 132 Receiving the polarization coded output bit, the terminal device 132 first performs the Polar decoding on the polarization code encoded output bit by using the identifier information of the receiving device group, to obtain the information bit carried in the polarization code encoded output bit.
  • the information bit includes a control information bit and a scrambled CRC bit of the control information bit, and then the terminal device 132 descrambles the scrambled CRC bit of the control information bit by using its own identification information to obtain descrambling.
  • the CRC bit is followed by CRC check on the control information bit by using the descrambled CRC bit. If the CRC check is successful, it indicates that the control information is sent to the terminal device 132, that is, the terminal device 132 is the destination device, and the terminal is Device 132 receives the control information.
  • the transmitting device performs polarization code encoding on the target information, carries the first identification information in the fixed bit sequence of the polarization code, and uses the second identification information as the scrambling code to the target information.
  • the CRC bit sequence is scrambled to obtain a scrambled CRC bit sequence, and the target information and the scrambled CRC bit sequence are used together as the information bit sequence of the polarization code, so that the information bit sequence carries the second identification information, that is, If two identification information are carried in the same polarization code, the identification information is not added to the control information, which saves the overhead of the control information.
  • the receiving device needs to perform CRC check on the target information, and the verification succeeds.
  • the receiving device is the destination device, and the target information is read, and the non-target device cannot read the target information, thereby improving the security of the target information; further, since the two identification information are carried on the same polarization code, the receiving The device does not need joint control information and MAC PDU header information to obtain the same identification information, thereby reducing the receiving device. Which is non-destination device processing delay.
  • FIG. 14 is a schematic structural diagram of a communication apparatus according to an embodiment of the present application.
  • the communication device 140 includes a processing unit 141 and a transmitting unit 142, wherein the processing unit 141 is configured to perform polarization code encoding by using information bits and fixed bits as polarization code encoding input bits to obtain polarization code encoding. Outputting a bit, wherein the fixed bit carries the first identification information.
  • the sending unit 142 is configured to send the polarization code encoded output bit to the destination device.
  • the information bit includes a target information bit and a parity bit of the target information bit, wherein the parity bit of the target information bit is used to carry the second identification information.
  • the first identification information is used to identify a destination device
  • the second identification information is used to identify the communication device.
  • the first identification information is used to identify the communication device
  • the second identification information is used to identify the destination device.
  • the first identifier information is used to identify a receiving device group
  • the second identifier information is used to identify the destination device in the receiving device group.
  • the bit corresponding to the first identifier information is part of the fixed bit; if the length of the fixed bit is equal to the first identifier And the bit corresponding to the first identifier information is the fixed bit; if the length of the fixed bit is smaller than the bit length corresponding to the first identifier information, the bit corresponding to the first identifier information is fixed.
  • the partial bits of the same length are the fixed bits.
  • the sending unit 142 is further configured to: send, to the destination device, indication information, where the indication information is used to indicate a position of the bit corresponding to the first identifier information in the fixed bit, or the indication information is used for Indicates the position of the partial bit in the fixed bit.
  • the communication device of the embodiment shown in FIG. 14 can be used to perform the technical solution of the foregoing method embodiment, and the implementation principle and technical effects are similar, and details are not described herein again.
  • FIG. 15 is a schematic structural diagram of another communication apparatus according to an embodiment of the present application.
  • the communication device 150 includes a receiving unit 151 and a processing unit 152, wherein the receiving unit 151 is configured to receive a polarization code encoded output bit sent by the transmitting device, where the polarization code encoding output bit is that the transmitting device
  • the information bits and the fixed bits are obtained by performing polarization code encoding on the polarization code encoding input bits, wherein the fixed bits carry the first identification information; and the processing unit 152 is configured to decode the polarization code encoded output bits to obtain
  • the polarization code encodes the information bits carried in the output bits; the information bits are verified, and based on the check result, it is determined whether the target information bits in the information bits are received.
  • the information bit includes the target information bit and the check bit of the target information bit, wherein the check bit of the target information bit is used to carry the second identification information.
  • the first identifier information is used to identify a destination device
  • the second identifier information is used to identify the sending device
  • the processor is specifically configured to decode the polarization code encoded output bit by using the identification information of the communication device.
  • the processing unit 152 is specifically configured to check the information bit by using the identification information of one of the plurality of known sending devices; if the verification is successful, determine that the communication device is the destination device. And receiving the target information bits in the information bits.
  • the processing unit 152 is further configured to: verify the information bits by using identification information of another known one of the plurality of known transmitting devices.
  • the receiving unit 151 is further configured to: receive the indication information that is sent by the sending device, where the indication information is used to indicate a position of the bit corresponding to the first identifier information in the fixed bit, or And indicating a position of a part of bits in the bit corresponding to the first identification information in the fixed bit.
  • the communication device of the embodiment shown in FIG. 15 can be used to implement the technical solution of the foregoing method embodiment, and the implementation principle and technical effects are similar, and details are not described herein again.
  • each unit of the above communication device is only a division of a logical function, and the actual implementation may be integrated into one physical entity in whole or in part, or may be physically separated.
  • these units may all be implemented in the form of software by means of processing component calls; or may be implemented entirely in hardware; some units may be implemented by software in the form of processing component calls, and some units may be implemented in the form of hardware.
  • the processing unit may be a separately set processing element, or may be integrated in one of the chips of the communication device, or may be stored in the memory of the communication device in the form of a program, which is called by a processing element of the communication device. And perform the functions of each unit above.
  • the implementation of other units is similar.
  • each step of the above method or each of the above units may be completed by an integrated logic circuit of hardware in the processor element or an instruction in a form of software.
  • the above units may be one or more integrated circuits configured to implement the above methods, such as one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (digital) Singnal processor (DSP), or one or more Field Programmable Gate Array (FPGA).
  • ASICs Application Specific Integrated Circuits
  • DSP digital Singnal processor
  • FPGA Field Programmable Gate Array
  • the processing element can be a general purpose processor, such as a central processing unit (CPU) or other processor that can invoke the program.
  • CPU central processing unit
  • these units can be integrated and implemented in the form of a system-on-a-chip (SOC).
  • SOC system-on-a-chip
  • FIG. 16 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • the communication device may specifically be a base station.
  • the base station includes an antenna 110, a radio frequency device 120, and a baseband device 130.
  • the antenna 110 is connected to the radio frequency device 120.
  • the radio frequency device 120 receives the information transmitted by the terminal through the antenna 110, and transmits the information sent by the terminal to the baseband device 130 for processing.
  • the baseband device 130 processes the information of the terminal and sends it to the radio frequency device 120.
  • the radio frequency device 120 processes the information of the terminal and sends the information to the terminal through the antenna 110.
  • the above communication device may be located in the baseband device 130.
  • the above various units are implemented in the form of a processing component scheduler, for example, the baseband device 130 includes a processing component 131 and a storage component 132, and the processing component 131 invokes a program stored by the storage component 132. To perform the method in the above method embodiments.
  • the baseband device 130 may further include an interface 133 for interacting with the radio frequency device 120, such as a common public radio interface (CPRI).
  • CPRI common public radio interface
  • the above units may be one or more processing elements configured to implement the above methods, the processing elements being disposed on the baseband device 130, where the processing elements may be integrated circuits, such as: one or more ASICs, or one or more DSPs, or one or more FPGAs, etc. These integrated circuits can be integrated to form a chip.
  • the above various units may be integrated together in the form of a system-on-a-chip (SOC), for example, the baseband device 130 includes a SOC chip for implementing the above method.
  • the processing element 131 and the storage element 132 may be integrated into the chip, and the functions of the above method or the above units may be implemented by the processing element 131 in the form of a stored program that calls the storage element 132; or, at least one integrated circuit may be integrated into the chip.
  • the functions of the above methods or the above units may be implemented; or, in combination with the above implementation manners, the functions of some units are implemented in the form of processing component calling programs, and the functions of some units are implemented in the form of integrated circuits.
  • the above communication device includes at least one processing element, a storage element and a communication interface, wherein at least one of the processing elements is used to perform the method provided by the above method embodiments.
  • the processing element may perform some or all of the steps in the above method embodiments in a manner of executing the program stored in the storage element in the first manner; or in the second manner: through the integrated logic circuit of the hardware in the processor element Some or all of the steps in the foregoing method embodiments are performed in combination with the instructions.
  • the methods provided in the foregoing method embodiments may also be implemented in combination with the first mode and the second mode.
  • the processing component here is the same as described above, and may be a general-purpose processor, and the processor may be an encoder, which is specifically a polar code encoder, that is, a Polar encoder, such as a central processing unit (CPU). It may also be one or more integrated circuits configured to implement the above method, such as: one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (digital singnal processors, DSP) ), or one or more Field Programmable Gate Arrays (FPGAs).
  • ASICs Application Specific Integrated Circuits
  • DSP digital singnal processors
  • FPGAs Field Programmable Gate Arrays
  • the storage element can be a memory or a collective name for a plurality of storage elements.
  • FIG. 17 is a schematic structural diagram of another communication device according to an embodiment of the present application.
  • the communication device may be a terminal.
  • the terminal includes a processor 110, a memory 120, and a transceiver 130.
  • the transceiver 130 can be coupled to an antenna.
  • the transceiver 130 receives the information transmitted by the base station through the antenna, and transmits the information to the processor 110 for processing.
  • the processor 110 processes the data of the terminal and transmits it to the base station through the transceiver 130.
  • the processor 110 may specifically be a decoder, and may be specifically used to decode a polarization code.
  • the memory 120 is used to store programs for implementing the above method embodiments, or the various units of the embodiment shown in FIG. 15, and the processor 110 calls the program to perform the operations of the above method embodiments to implement the various units shown in FIG.
  • part or all of the above units may be implemented by being embedded in a chip of the terminal in the form of an integrated circuit. And they can be implemented separately or integrated. That is, the above units may be configured to implement one or more integrated circuits of the above method, for example, one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (digital singnal processor) , DSP), or one or more Field Programmable Gate Arrays (FPGAs).
  • ASICs Application Specific Integrated Circuits
  • microprocessors digital singnal processor
  • FPGAs Field Programmable Gate Arrays
  • the embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface; the processor is configured to encode the information bit and the fixed bit as a polarization code encoding input bit to obtain a polarization code encoding output bit, The fixed bit carries the first identification information, and the communication interface is configured to send the polarization code encoded output bit to the destination device.
  • the processor may be specifically configured to perform or process the method on the transmitting side provided above in the present application.
  • the processor can perform the above steps through hardware integrated logic circuits or instructions in software form.
  • the software module can be located in a random access memory (RAM), a flash memory, a read-only memory (ROM), a programmable read only memory or an electrically erasable programmable memory, a register, etc.
  • RAM random access memory
  • ROM read-only memory
  • programmable read only memory or an electrically erasable programmable memory
  • register etc.
  • the processor in the chip reads the instructions in the storage medium and completes the above steps in combination with its hardware.
  • the embodiment of the present application further provides a chip, the chip includes a processor and a communication interface, and the communication interface is configured to receive a polarization code encoded output bit, where the polarization code encodes an output bit by using the information bit and the fixed bit as a polarization code.
  • the coded input bit is obtained by performing polarization code encoding, wherein the fixed bit carries the first identification information; the processor is configured to decode the polarization code encoded output bit, and obtain the carried in the polarization code encoded output bit Information bits, and for verifying the information bits, and determining whether to receive the target information bits in the information bits according to the check result.
  • the processor may be specifically configured to perform or process the method of the receiving side provided above in the present application.
  • the processor can perform the above steps through hardware integrated logic circuits or instructions in software form.
  • the software module can be located in a random access memory (RAM), a flash memory, a read-only memory (ROM), a programmable read only memory or an electrically erasable programmable memory, a register, etc.
  • RAM random access memory
  • ROM read-only memory
  • programmable read only memory programmable read only memory
  • electrically erasable programmable memory a register, etc.
  • the processor in the chip reads the instructions in the storage medium and completes the above steps in combination with its hardware.
  • the embodiment of the present application provides a system on chip, the system on which the chip is applicable to a network device, the system on the chip includes: at least one communication interface, at least one processor, at least one memory, the communication interface, the memory, and the processing.
  • the devices are interconnected by a bus that causes the network device to perform the method of the above embodiments by executing instructions stored in the memory.
  • the embodiment of the present application provides a system on chip, the system on which the chip is applicable to a terminal device, where the system on the chip includes: at least one communication interface, at least one processor, at least one memory, the communication interface, the memory, and the processing.
  • the devices are interconnected by a bus that causes the terminal device to perform the method in the above embodiments by executing instructions stored in the memory.

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  • Engineering & Computer Science (AREA)
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  • Signal Processing (AREA)
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  • Optical Communication System (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé et un dispositif de traitement d'informations d'identification, le procédé comprenant les étapes suivantes : un dispositif d'envoi effectue un codage de code polaire avec un bit d'information et un bit fixe comme bits d'entrée du codage de code polaire, en vue d'obtenir des bits de sortie du codage de code polaire, le bit fixe transportant des premières informations d'identification ; et le dispositif d'envoi envoie les bits de sortie du codage de code polaire à un dispositif de destination. Par rapport aux informations d'identification en tant que partie d'informations de commande, la réalisation, au moyen d'un dispositif d'envoi, d'un codage de code polaire avec un bit d'information et un bit fixe comme bits d'entrée du codage de code polaire, pour obtenir des bits de sortie du codage de code polaire, transporter les informations d'identification dans le bit fixe, et envoyer les bits de sortie du codage de code polaire à un dispositif de destination permet d'éviter l'ajout des informations d'identification aux informations de commande, de façon à économiser des surdébits d'informations de commande.
PCT/CN2018/080539 2017-03-29 2018-03-26 Procédé et dispositif de traitement d'informations d'identification WO2018177258A1 (fr)

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CN110008054B (zh) * 2019-02-25 2023-05-12 西南交通大学 一种用于存储器差错控制的多级读取译码的方法和装置
CN110336639B (zh) * 2019-06-23 2021-08-17 西安电子科技大学 一种基于容量分布的极化码多层编码调制方法及应用

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US20140040214A1 (en) * 2012-07-31 2014-02-06 Empire Technology Development Llc Entropy Coding and Decoding Using Polar Codes
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