WO2020007170A1 - 一种数据传输方法及装置 - Google Patents

一种数据传输方法及装置 Download PDF

Info

Publication number
WO2020007170A1
WO2020007170A1 PCT/CN2019/090927 CN2019090927W WO2020007170A1 WO 2020007170 A1 WO2020007170 A1 WO 2020007170A1 CN 2019090927 W CN2019090927 W CN 2019090927W WO 2020007170 A1 WO2020007170 A1 WO 2020007170A1
Authority
WO
WIPO (PCT)
Prior art keywords
different
characteristic information
interference
transmission
transmission characteristic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2019/090927
Other languages
English (en)
French (fr)
Inventor
王磊
王加庆
郑方政
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Academy of Telecommunications Technology CATT
Original Assignee
China Academy of Telecommunications Technology CATT
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Academy of Telecommunications Technology CATT filed Critical China Academy of Telecommunications Technology CATT
Publication of WO2020007170A1 publication Critical patent/WO2020007170A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
    • H04L1/001—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding applied to control information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present application relates to the field of communication technologies, and in particular, to a data transmission method and device.
  • bit fields included in the DCI (Downlink Control Information, Downlink Control Information) of the scheduling terminal are different.
  • DCI formats can be introduced, or explicit indicator bits can be added to the DCI, or different RNTI (Radio Network Temporary Identity) values can be used to distinguish.
  • RNTI Radio Network Temporary Identity
  • the present application provides a data transmission method and device, which can distinguish different transmission characteristic information of transmission data without incurring additional resource overhead.
  • the present application provides a data transmission method, which includes:
  • the indication information is used to indicate transmission characteristic information of the transmission data
  • the coded bit including a frozen bit carrying the indication information.
  • the present application provides a data transmission method, which includes:
  • the present invention provides a data transmission device, including:
  • An instruction unit configured to carry instruction information on the frozen bits of the transmission data after channel coding, where the instruction information is used to indicate transmission characteristic information of the transmission data;
  • the sending unit is configured to send a frozen bit carrying the indication information to the terminal.
  • the present invention provides a data transmission device, including:
  • a receiving unit configured to receive coded bits obtained after channel coding of transmission data, where the coded bits include a frozen bit carrying instruction information
  • a characteristic determining unit is configured to determine transmission characteristic information corresponding to the transmission data according to the indication information on the frozen bits.
  • the present application provides a communication device including a processor, a memory, and a transceiver; the processor is configured to read computer instructions in the memory and execute the method as described in the first aspect above. .
  • the present application provides a communication device including a processor, a memory, and a transceiver; the processor is configured to read computer instructions in the memory and execute the method described in the second aspect above. .
  • the present application provides a computer-readable storage medium storing computer-executable instructions, where the computer-executable instructions are used to cause the computer to execute the method according to the first aspect .
  • the present application provides a computer-readable storage medium storing computer-executable instructions, where the computer-executable instructions are used to cause the computer to execute the computer-readable storage medium according to the second aspect. method.
  • FIG. 1 is a flowchart of a data transmission method according to an embodiment of the present application
  • FIG. 3 is a frame diagram of a data transmission device according to an embodiment of the present application.
  • FIG. 4 is a frame diagram of another data transmission device according to an embodiment of the present application.
  • the data transmission method and device provided in the embodiments of the present application are applied to data transmission on a polarized channel.
  • the related technology of the polarized channel is described below.
  • channel polarization that is, N independent binary memoryless channel B-DMC channels W with the same channel characteristics, performs channel transformation and then introduces the correlation between the independent channels, and can obtain a set of context-dependent relationships.
  • Polarized channel Where N is a positive integer greater than 1, and i is any positive integer between 1 and N.
  • Polarization code is a coding method based on a channel polarization phenomenon. On the basis of channel polarization, only a part of the capacity is needed The free bits carrying information are transmitted on the channel that tends to 1, and the remaining capacity A fixed bit known to the transceiver is transmitted on a channel that approaches 0, also known as frozen bits.
  • the code constructed according to this idea is a polar code.
  • each codeword is generated in the same way.
  • A be any subset of ⁇ 1, ..., N ⁇ , then Among them, G N is a generation matrix of order N, G N (A) is a sub-matrix of G N with A as the number of rows, and u A is a free bit carrying information, For the sending and receiving end is known to freeze bit, A C is NA. If you fix A and Using u A as an arbitrary variable, we can get the codeword corresponding to u A The codeword thus generated is called a G N coset code.
  • a G N coset code composed of parameter vectors Determine, where K is the dimension of the code and K / N is the code rate. We call u A the information bit, This is called a frozen bit.
  • an embodiment of the present application provides a data transmission method, which is applied to a network side and an applied device such as a base station. As shown in FIG. 1, the method includes :
  • Step 101 Carrying indication information on the frozen bits of the transmission data after channel coding, the indication information is used to indicate transmission characteristic information of the transmission data;
  • Channel coding is performed on the transmission data to obtain coded bits, where the coded bits include frozen bits.
  • the embodiments of the present application further load indication information on the frozen bits, so that the frozen bits can indicate transmission characteristic information of the transmission data.
  • Step 102 Send a coded bit to the terminal, where the coded bit includes a frozen bit that carries the indication information.
  • the channel used in this embodiment may be a channel using polar coding or any channel using a coding scheme having a frozen bit.
  • the frozen bits in the prior art are inherent bits known to the transceiver.
  • the frozen bits are further loaded with instruction information, so that On the basis of increasing the signaling overhead, the transmission characteristic information of the transmitted data is indicated to the terminal, which saves bandwidth resources.
  • the transmission characteristic information of the transmission data may be a personalized transmission characteristic of the transmission data.
  • the personalized transmission characteristic usually needs to increase the signaling overhead indication to the terminal, so that the terminal can distinguish the processing, and With the method provided in this embodiment, the terminal can distinguish the personalized transmission characteristics of the transmitted data, and can save signaling overhead, thereby saving bandwidth resources.
  • the transmission characteristic information in this embodiment includes, but is not limited to, any of the following transmission characteristic information:
  • the indication information carried on the frozen bit can be used to indicate the type of service corresponding to the currently transmitted data.
  • the specific service types for transmitting data may include, but are not limited to, enhanced mobile broadband eMBB services or low-latency high-reliability URLLC services or mMTC services or other service types introduced in the future.
  • the transmission data is downlink control information DCI that carries scheduling information
  • the frozen bits after the DCI is channel-encoded carry indication information, which can indicate scheduling information of which type of service the current DCI is.
  • the transmission data of different service types use the same DCI format.
  • the indication information carried on the frozen bit can be used to indicate the application scenario corresponding to the currently transmitted data.
  • the transmission data is downlink control information DCI that carries scheduling information
  • the frozen information after the DCI is channel-encoded carries indication information, which can indicate the scheduling information for the transmission scenario of the current DCI application scenario.
  • different transmission characteristic information corresponds to different numbers of TRPs of transmission and reception points, which may indicate that the current DCI is scheduling information of a transmission mode in which the number of TRPs is r, and r is a positive integer.
  • the transmission characteristic information in this embodiment may be the content of the specified information block, so that the terminal distinguishes the currently specified information block. What exactly corresponds in.
  • the transmission data is downlink control information DCI carrying scheduling information
  • the frozen bits after the channel coding of the DCI carries indication information may indicate the content of the corresponding scheduling information in the specified information domain of the current DCI.
  • the difference in the content of the designated information block in the DCI is caused by using different parsing methods. Therefore, different transmission characteristic information in this embodiment corresponds to the parsing of the designated information domain in the DCI using different parsing methods.
  • the transmission characteristic information in this embodiment may be a content format corresponding to the transmission data, thereby enabling the terminal to distinguish the current transmission data correspondence.
  • Content format As for the content format of the transmission data, different content formats may be used in different situations.
  • the transmission characteristic information in this embodiment may be a content format corresponding to the transmission data, thereby enabling the terminal to distinguish the current transmission data correspondence.
  • the transmission data is downlink control information DCI carrying scheduling information
  • the frozen bit after the DCI is channel-encoded carries indication information, which can indicate the content format corresponding to the current DCI.
  • the transmission characteristic information is a content format corresponding to the transmission data
  • different transmission characteristic information corresponds to different DCI formats having the same payload.
  • the frozen bit bits of the transmission data after channel coding are further loaded with instruction information.
  • the specific method used to load the instruction information may be, but is not limited to, the following methods:
  • a corresponding interference adding sequence is selected to perform interference on the frozen bits, wherein different transmission characteristic information corresponds to different interference adding sequences.
  • This embodiment does not limit the number, length, and design of specific information bits of the interference sequence.
  • Correspondences between different transmission characteristic information and different interference adding sequences may be established according to different transmission characteristic information in advance, and different interference adding sequences may have the same or different lengths.
  • the method in the embodiment of the present application further includes:
  • an interference-adding sequence corresponding to different transmission characteristic information is sent to the terminal by sending display signaling.
  • Adopt a predetermined agreement, that is, define a plurality of different interference interference sequences through a protocol definition method, which is used to correspond to different transmission data characteristic information.
  • Display signaling which includes but is not limited to any of the following signaling:
  • the method in the embodiment of the present application further includes:
  • the interference-added sequence is sent to the terminal at the starting position of the frozen bit by sending display signaling.
  • the interference adding sequence performs bit-level adding interference on the frozen bit, and the starting position of the added interference may be any one of the first frozen bit or the last frozen bit or the frozen bit.
  • the display signaling indicating the starting position includes, but is not limited to, any of the following signaling:
  • M Frozen bit-plus interference sequences may be predefined or notified through signaling, where M is a positive integer greater than or equal to 1.
  • the interference sequence M1 corresponds to enhanced mobile broadband eMBB (enhanced Mobile Broadband) service
  • M2 corresponds to URLLC (Ultra Reliable & Low Latency Communication) service
  • M3 corresponds to mMTC (mass machine communication) service
  • M4 corresponds to For single-TRP transmission
  • M5 corresponds to multi-TRP transmission
  • M6 corresponds to MCS-table1
  • M7 corresponds to MCS-table2
  • M8 corresponds to DCI Format X
  • M9 corresponds to DCI format Y, and so on.
  • Bit-level interference is added to the frozen bit according to the interference sequence corresponding to the current transmission data.
  • the initial position of the added interference is the first frozen bit or the last frozen bit or any of the frozen bits. After the interference is completed, Send to the terminal.
  • the terminal can distinguish different service types and / or different application scenarios and / or different information block contents / different content formats, etc., through interference interference sequences on frozen bits. No additional signaling overhead or overhead of the wireless network's temporary identification of the RNTI value.
  • Another embodiment of the present application provides a data transmission method, which is applied to a terminal side and an applied device such as a mobile phone terminal. As shown in FIG. 2, the method includes:
  • Step 201 Receive coded bits obtained after channel coding of transmission data, where the coded bits include a frozen bit that carries indication information;
  • Step 202 Determine transmission characteristic information corresponding to the transmission data according to the indication information on the frozen bits.
  • the channel used in this embodiment may be a channel using polar coding or any channel using a coding scheme having a frozen bit.
  • the embodiments of the present application parse the indication information carried by frozen bits before decoding to determine the transmission characteristic information, and then use the corresponding processing method to decode the transmission data and other processing.
  • the frozen bit is an inherent bit known to the transceiver.
  • frozen bits received by the terminal are loaded with instruction information, so that the terminal can be determined without increasing signaling overhead.
  • the transmission characteristic information of the transmission data can be distinguished.
  • the transmission characteristic information of the transmission data may be a personalized transmission characteristic of the transmission data.
  • the personalized transmission characteristic usually needs to increase the signaling overhead indication to the terminal, so that the terminal can distinguish the processing, and With the method provided in this embodiment, the terminal can distinguish the personalized transmission characteristics of the transmitted data without increasing the signaling overhead.
  • the transmission characteristic information in this embodiment includes, but is not limited to, any of the following transmission characteristic information:
  • the indication information carried on the frozen bits can be used to indicate the type of service corresponding to the currently transmitted data.
  • the specific service types for transmitting data may include, but are not limited to, enhanced mobile broadband eMBB services or low-latency high-reliability URLLC services or mMTC services or other service types introduced in the future.
  • the transmission data is downlink control information DCI that carries scheduling information
  • the frozen bits after the DCI is channel-encoded carry indication information, which can indicate scheduling information of which type of service the current DCI is.
  • the transmission data of different service types use the same DCI format.
  • the indication information carried on the frozen bit can be used to indicate the application scenario corresponding to the currently transmitted data.
  • the transmission data is downlink control information DCI that carries scheduling information
  • the frozen information after the DCI is channel-encoded carries indication information, which can indicate the scheduling information for the transmission scenario of the current DCI application scenario.
  • different transmission characteristic information corresponds to different numbers of TRPs of transmission and reception points, which may indicate that the current DCI is scheduling information of a transmission mode in which the number of TRPs is r, and r is a positive integer.
  • the transmission characteristic information in this embodiment may be the content of the specified information block, thereby enabling the terminal to distinguish the currently specified information block. What exactly corresponds in.
  • the transmission data is downlink control information DCI carrying scheduling information
  • the frozen bit after the channel coding of the DCI carries indication information may indicate the content of the corresponding scheduling information in the specified information block of the current DCI.
  • the difference in the content of the designated information block in the DCI is caused by using different parsing methods. Therefore, different transmission characteristic information in this embodiment corresponds to the parsing of the designated information domain in the DCI using different parsing methods.
  • the transmission characteristic information in this embodiment may be a content format corresponding to the transmission data, thereby enabling the terminal to distinguish the current transmission data correspondence Content format.
  • the transmission data is downlink control information DCI carrying scheduling information, and the frozen bits after the DCI is channel-encoded carry indication information, which can indicate the current DCI corresponding format.
  • the transmission characteristic information is a content format corresponding to the transmission data
  • different transmission characteristic information corresponds to different DCI formats having the same payload.
  • determining transmission characteristic information corresponding to the transmission data includes:
  • the interference sequence used corresponding to the frozen bits is obtained, and the transmission characteristic information corresponding to the transmission data is determined according to the interference sequence.
  • This embodiment does not limit the number, length, and design of specific information bits of the interference sequence.
  • Correspondences between different transmission characteristic information and different interference adding sequences may be established according to different transmission characteristic information in advance, and different interference adding sequences may have the same or different lengths.
  • specific indication information carried on frozen bits is determined according to a priori information.
  • the a priori information may be different interference interference sequences corresponding to different transmission characteristic information agreed between the terminal side and the base station side, or The base station displays different interference sequences corresponding to the transmission characteristic information notified by the signaling.
  • the prior information is a binary bit sequence of length N, where N is a positive integer greater than or equal to 1 and less than the length of the frozen bit.
  • an interference adding sequence corresponding to different transmission characteristic information is determined.
  • the display signaling includes any of the following signaling:
  • adopting different interference adding sequences to perform interference removal on the frozen bits respectively includes:
  • the frozen bits are descrambled by using different interference sequences.
  • the interference adding sequence performs bit-level adding interference on the frozen bit, and the starting position of the added interference may be any one of the first frozen bit or the last frozen bit or the frozen bit.
  • the display signaling indicating the starting position includes, but is not limited to, any of the following signaling:
  • the interference sequence M1 corresponds to enhanced mobile broadband eMBB (enhanced Mobile Broadband) service
  • M2 corresponds to URLLC (Ultra Reliable & Low Latency Communication) service
  • M3 corresponds to mMTC (mass machine communication) service
  • M4 corresponds to For single-TRP transmission
  • M5 corresponds to multi-TRP transmission
  • M6 corresponds to MCS-table1
  • M7 corresponds to MCS-table2
  • M8 corresponds to DCI Format X
  • M9 corresponds to DCI format Y, and so on.
  • the above interference sequence is used to perform bit-level interference on the frozen bit.
  • the starting position of the added interference is the first frozen bit, the last frozen bit, or any of the frozen bits. De-interference can obtain the correct frozen bit.
  • the corresponding transmission characteristic information is determined according to the currently used interference adding sequence.
  • the terminal can distinguish different service types and / or different application scenarios and / or different information block contents / different content formats, etc., through interference interference sequences on frozen bits. Brings extra signaling overhead or overhead of the wireless network temporary identification RNTI value.
  • the terminal supports different service types. For example, the terminal simultaneously supports enhanced mobile broadband eMBB services, low-latency and high-reliability URLLC services, and the base station uses DCI with the same payload to schedule eMBB services and URLLC services. Obviously, due to the different service types, the scheduling information in the DCI that schedules the eMBB service and the URLLC service is different.
  • the S1 and S2 may be constituted in different ways, including but not limited to the following ways:
  • S1 and S2 have the same sequence length L, but have different bit information, for example, S1 is all 0 bits, and S2 is all 1 bits;
  • S1 and S2 have different sequence lengths L1 and L2, and carry different information bits.
  • the base station uses the above sequence to perform bit-level plus interference on the frozen encoded bits of the DCI that schedules the eMBB service and URLLC service after polar coding.
  • the frozen interference sequence performs bit-level interference on the frozen bit.
  • the starting position of the added interference is any one of the first frozen bit, the last frozen bit, or the frozen bit.
  • the terminal When the terminal detects the DCI receiving the scheduling data, it first performs interference cancellation on the frozen bit of DCI according to S1 and S2 before polar decoding. If the interference cancellation is successful according to S1, it is learned that the DCI is the DCI for scheduling eMBB services. If the interference is successfully resolved, it is learned that the DCI is a DCI that schedules URLLC services.
  • the number of interference bit sequences of frozen bits can be N different sequences, which are used to distinguish more service types.
  • gNB uses the same size DCI to schedule eMBB / URLLC / mMTC services, which can introduce 3 different frozen bits plus interference sequences.
  • the length of the interference sequence is 8, then S1 is ⁇ 0, 0, 0, 0, 0, S2 is ⁇ 1, 1, 1, 1 ⁇ , and S3 is ⁇ 1, 0, 1, 0, 0, 1).
  • the embodiment of the present application does not limit the number, length, and design of specific information bits of the interference adding sequence.
  • the terminal supports different application scenarios, such as a single transmission receiving point single-TRP transmission and a multiple transmission receiving point multi-TRP transmission.
  • the terminal In the single-TRP transmission scenario, the terminal only needs to detect the DCI that received a scheduled downlink data in the monitoring slot monitoring of one downlink control channel, that is, it no longer expects to receive other data after receiving the DL assignment (DL assignment). Scheduling DL assignment of downlink data.
  • the terminal needs to detect multiple scheduling information from different TRPs in the monitoring occasion of a downlink control channel, that is, the terminal needs to continue blind detection in the monitoring occasion.
  • the protocol predefines two frozen bits plus interference sequences T1 and T2, where T1 corresponds to a single TRP scenario and T2 corresponds to a multi-TRP scenario.
  • T1 and T2 can be constructed in different ways, including but not limited to:
  • T1 and T2 have the same sequence length L, but have different bit information, for example, T1 is all 0 bits, and T2 is all 1 bits;
  • T1 and T2 have different sequence lengths L1 and L2, and carry different information bits.
  • the base station uses the interference sequence of the frozen bit to perform bit-level interference on the frozen bit of the DCI after the polar coding, and the starting position of the added interference is any one of the first frozen bit, the last frozen bit, or the frozen bit.
  • the terminal When the terminal detects the DCI receiving the scheduling data, it first performs interference cancellation on the frozen bits of the DCI according to T1 and T2 before polar decoding. If the interference cancellation is successful according to T1, it is learned that the transmission is a single TRP scenario at this time. If the interference is successful, it is learned that the transmission is multi-TRP at this time, and the terminal needs to detect and receive scheduling information of multiple TRPs in the monitoring occasion of a downlink control channel.
  • multiple interference interference sequences may be introduced, which may further indicate the number of TRPs currently transmitted by the multi-TRP.
  • the base station uses a specific DCI format to schedule the terminal.
  • the content corresponding to specific bit fields in DCI may change.
  • the designated information block in the DCI is the scheduling and coding strategy indication domain and time domain.
  • the 5-bit MCS (Modulation and Coding Scheme) indication domain in DCI may correspond to different tables in different situations.
  • mapping out different information block contents; the 4-bit time domain and RA domain may correspond to different time domain allocation tables in different situations.
  • the base station can configure multiple sets of parameters for specific bitfields in the DCI through RRC signaling, add interference to different parameter configurations through different interference adding sequences, and the terminal learns the interference adding interference sequences on the frozen bits. Bit field associated semi-static configuration parameters.
  • the MCS indication domain is taken as an example.
  • the base station configures two MCS tables for the terminal through RRC signaling, which respectively correspond to different code rates or reliability requirements.
  • the MCS table1 corresponds to the frozen bits plus interference sequence M1
  • the MCS table2 corresponds to the frozen bits plus interference sequence M2 in a manner predefined by the protocol.
  • the base station uses the interference sequence of the frozen bit to perform bit-level interference on the frozen bit.
  • the starting position of the added interference is any one of the first frozen bit, the last frozen bit, or the frozen bit.
  • the terminal detects the DCI receiving the scheduling data, it first performs interference cancellation on the frozen bit of DCI according to M1 and M2 before polar decoding.
  • the interference cancellation is successful according to M1, it is learned that the indication information of the MCS indication field in the DCI corresponds to MCStable1; if the interference is successfully resolved according to M2, it is learned that the indication information of the MCS indication field in the DCI corresponds to MCStable2.
  • different DCI formats may have the same payload size.
  • the base station uses the interference sequence of the frozen bit to perform bit-level interference on the frozen bit.
  • the starting position of the added interference is any one of the first frozen bit, the last frozen bit, or the frozen bit.
  • the terminal When the terminal detects the DCI receiving the scheduling data, it first performs interference cancellation on the frozen bit of the DCI according to P1, P2, and P3 before polar decoding. If the interference is successfully resolved according to P1, it is learned that the DCI is DCI format1; If the interference is successful, it is learned that the DCI is DCI format2; if the interference is successfully solved according to P3, it is learned that the DCI is DCI format3.
  • the foregoing embodiment of the present application uses the transmission data as the DCI as an example.
  • the method is not limited to being applied only to control information.
  • a data device provided by an embodiment of the present application includes:
  • An instruction unit 301 configured to carry instruction information on the frozen bits of the transmission data after channel coding, where the instruction information is used to indicate transmission characteristic information of the transmission data;
  • the sending unit 302 is configured to send a coded bit to the terminal, where the coded bit includes a frozen bit that carries the indication information.
  • the instructing unit 301 carries the indication information on the frozen bits of the transmission data after channel coding, including:
  • a corresponding interference adding sequence is selected to perform interference on the frozen bits, wherein different transmission characteristic information corresponds to different interference adding sequences.
  • the transmission characteristic information includes any one of the following transmission characteristic information:
  • the content format corresponding to the transmitted data is the content format corresponding to the transmitted data.
  • the transmission data is downlink control information DCI.
  • transmission characteristic information is a service type corresponding to the transmission data
  • transmission data of different service types use the same DCI format
  • different transmission characteristic information corresponds to the number of different transmission receiving point TRPs
  • transmission characteristic information is the content of the specified information block
  • different transmission characteristic information corresponds to different parsing methods adopted by the specified information field in the DCI
  • the transmission characteristic information is a content format corresponding to transmission data
  • different transmission characteristic information corresponds to different DCI formats having the same payload.
  • the device further includes:
  • a first contracting unit configured to preset an interference adding sequence corresponding to different transmission characteristic information with the terminal
  • the first display instruction unit is configured to send an interference sequence corresponding to different transmission characteristic information to the terminal by sending display signaling.
  • the display signaling includes any of the following signaling:
  • the device further includes:
  • a second appointment unit configured to agree with the terminal in advance that the interference sequence is at the start position of the frozen bit
  • the second display instruction unit is configured to send the interference-added sequence to the terminal at the start position of the frozen bit by sending display signaling.
  • An embodiment of the present application further provides a data transmission device. As shown in FIG. 4, the device includes:
  • the receiving unit 401 is configured to receive coded bits obtained by channel coding of transmission data, where the coded bits include a frozen bit that carries indication information;
  • a characteristic determining unit 402 is configured to determine transmission characteristic information corresponding to the transmission data according to the indication information carried on the frozen bit, so as to process the transmission data in a corresponding processing manner according to the transmission characteristic information.
  • the characteristic determining unit 402 determines transmission characteristic information corresponding to the transmission data according to the indication information carried on the frozen bit, including:
  • the interference sequence used corresponding to the frozen bits is obtained, and the transmission characteristic information corresponding to the transmission data is determined according to the interference sequence.
  • the transmission characteristic information includes any one of the following transmission characteristic information:
  • the content format corresponding to the transmitted data is the content format corresponding to the transmitted data.
  • the transmission data is downlink control information DCI.
  • transmission characteristic information is a service type corresponding to the transmission data
  • transmission data of different service types use the same DCI format
  • different transmission characteristic information corresponds to the number of different transmission receiving point TRPs
  • transmission characteristic information is the content of the specified information block
  • different transmission characteristic information corresponds to different parsing methods adopted by the specified information field in the DCI
  • the transmission characteristic information is a content format corresponding to the transmission data
  • different transmission characteristic information corresponds to different DCI formats having the same payload.
  • determining different interference interference sequences corresponding to different transmission characteristic information includes:
  • an interference adding sequence corresponding to different transmission characteristic information is determined.
  • the display signaling includes any of the following signaling:
  • the feature determining unit uses different interference interference sequences to perform interference removal on the frozen bits, including:
  • the frozen bits are descrambled by using different interference sequences.
  • the embodiments of the present invention may be provided as a method, a system, or a computer program product. Therefore, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-readable storage media (including, but not limited to, magnetic disk storage, optical storage, etc.) containing computer-readable program code.
  • a computer-readable storage media including, but not limited to, magnetic disk storage, optical storage, etc.
  • These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to work in a specific manner such that the instructions stored in the computer-readable memory produce a manufactured article including an instruction device, the instructions
  • the device implements the functions specified in one or more flowcharts and / or one or more blocks of the block diagram.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device, so that a series of steps can be performed on the computer or other programmable device to produce a computer-implemented process, which can be executed on the computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more flowcharts and / or one or more blocks of the block diagrams.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

本申请公开了一种数据传输方法及装置，该方法包括：在传输数据经信道编码后的冻结比特位上携带指示信息，所述指示信息用于指示所述传输数据的传输特征信息；将编码比特发送给终端，所述编码比特包含携带所述指示信息的冻结比特位，从而使终端根据所述冻结比特位上的指示信息，确定所述传输数据对应的传输特征信息。本申请在不带来额外资源开销的情况下，可以使终端区分传输数据的不同传输特征信息。

Description

一种数据传输方法及装置
相关申请的交叉引用
本申请要求在2018年07月03日提交中国专利局、申请号为201810719499.X、申请名称为“一种数据传输方法及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域，尤其涉及一种数据传输方法及装置。
背景技术
在未来的移动通信系统中，业务类型更加丰富，应用场景也更加多样。为了适应用户日益复杂的需求，终端需要同时支持不同的业务、场景或者能力。
在不同场景或者不同业务类型的情况下，调度终端的DCI(下行控制信息，Downlink Control Information)所包含的位域bit field不同。为了区分不同的DCI，当前只能引入不同的DCI format或者在DCI中加入显式指示位bit或者使用不同的RNTI(Radio Network Temporary Identity，无线网络临时标识)值进行区分。
增加DCI format无疑会增加系统的复杂度，而在DCI中加入显式指示bit会增加净负荷(payload size)，使用不同的RNTI值进行区分会显著的影响RNTI的容量。
如何不带来额外的信令开销或者无线网络临时标识RNTI值的开销的情况下，区分不同的业务类型、场景及其它需要区分数据传输特征的场景，当前并没有明确的方案。
发明内容
本申请提供一种数据传输方法及装置，在不带来额外资源开销的情况下，可以区分传输数据的不同传输特征信息。
第一方面，本申请提供一种数据传输方法，该方法包括：
在传输数据经信道编码后的冻结比特位上携带指示信息，所述指示信息用于指示所述传输数据的传输特征信息；
将编码比特发送给终端，所述编码比特包含携带所述指示信息的冻结比特位。
第二方面，本申请提供一种数据传输方法，该方法包括：
接收传输数据经信道编码后得到的编码比特，所述编码比特包含携带指示信息的冻结比特位；
根据所述冻结比特位上的指示信息，确定所述传输数据对应的传输特征信息。
第三方面，本发明提供一种数据传输装置，包括：
指示单元，用于在传输数据经信道编码后的冻结比特位上携带指示信息，所述指示信息用于指示所述传输数据的传输特征信息；
发送单元，用于将携带所述指示信息的冻结比特位发送给终端。
第四方面，本发明提供一种数据传输装置，包括：
接收单元，用于接收传输数据经信道编码后得到的编码比特，所述编码比特包含携带指示信息的冻结比特位；
特征确定单元，用于根据所述冻结比特位上的指示信息，确定所述传输数据对应的传输特征信息。
第五方面，本申请提供一种通信装置，包括：处理器、存储器、收发机；所述处理器，用于读取所述存储器中的计算机指令，执行如上述第一方面中所述的方法。
第六方面，本申请提供一种通信装置，包括：处理器、存储器、收发机；所述处理器，用于读取所述存储器中的计算机指令，执行如上述第二方面中所述的方法。
第七方面，本申请提供一种计算机可读存储介质，所述计算机可读存储介质存储有计算机可执行指令，所述计算机可执行指令用于使所述计算机执行如第一方面所述的方法。
第八方面，本申请提供一种计算机可读存储介质，所述计算机可读存储介质存储有计算机可执行指令，所述计算机可执行指令用于使所述计算机执行如上述第二方面所述的方法。
本申请实施例的数据传输方法及装置，具体以下有益效果：
通过本申请实施例提供的数据传输方法及装置，通过在传输数据的冻结比特位上携带指示信息，可以在不增加额外的资源开销的情况下，实现区分传输数据的不同传输特征信息。
附图说明
图1为本申请实施例提供的数据传输方法流程图；
图2为本申请实施例提供的另一数据传输方法流程图；
图3为本申请实施例提供的数据传输装置框架图；
图4为本申请实施例提供的另一数据传输装置框架图。
具体实施方式
为了使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请作进一步地详细描述，显然，所描述的实施例仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本申请保护的范围。
本申请实施例提供的数据传输方法及装置，应用于极化信道上的数据传输，下面对极化信道的相关技术进行说明。
所谓信道极化，即对N个独立的、具有相同信道特性的二进制离散无记忆信道B-DMC信道W，进行信道变换进而在各个独立信道之间引入相关性，能够得到一组具有前后依赖关系的极化信道
Figure PCTCN2019090927-appb-000001
其中N为大于1的正整数， i为1～N之间的任一正整数。
极化码是基于一种信道极化现象所提出的一种编码方式。在信道极化的基础上，只需要在一部分容量
Figure PCTCN2019090927-appb-000002
趋于1的信道上传输承载信息的自由比特，而在剩下的容量
Figure PCTCN2019090927-appb-000003
趋于0的信道上传输对收发端已知的固定比特，也称冻结比特(frozen bits)。按照这种思想构造出来的码就是极化码。
对于一个给定的N，每一个码字都以相同的方法生成。设A为{1,...,N}的任意一个子集，那么
Figure PCTCN2019090927-appb-000004
其中，G N是N阶生成矩阵，G N(A)是G N的以A为行数的子矩阵，u A为承载信息的自由比特，
Figure PCTCN2019090927-appb-000005
为对收发端已知的冻结比特，A C为N-A。如果固定A和
Figure PCTCN2019090927-appb-000006
把u A作为任意的变量，就可以得到对应于u A的码字
Figure PCTCN2019090927-appb-000007
这样生成的码字称为G N陪集码。一个G N陪集码，由参数向量
Figure PCTCN2019090927-appb-000008
确定，其中K为码的维数，K/N为码率。我们将u A称为信息位，
Figure PCTCN2019090927-appb-000009
称为冻结比特位。
基于冻结比特位上为对收发端已知的固定比特的背景技术，本申请实施例提供一种数据传输方法，应用于网络侧，应用的设备如基站等，如图1所示，该方法包括：
步骤101，在传输数据经信道编码后的冻结比特位上携带指示信息，所述指示信息用于指示所述传输数据的传输特征信息；
对传输数据进行信道编码后得到编码比特，该编码比特包括冻结比特位。
本申请实施例进一步地，在冻结比特位上加载指示信息，使得冻结比特位可以指示传输数据的传输特征信息。
步骤102，将编码比特发送给终端，所述编码比特包含携带所述指示信息的冻结比特位。
本实施例中应用的信道可以是使用polar编码的信道或者任何使用具有frozen bit的编码方式的信道。
如前所述，在信道编码时，
Figure PCTCN2019090927-appb-000010
为传输数据经信道编码后的冻结比 特位，现有技术中该冻结比特位为收发端已知的固有比特，本申请实施例在编码后在该冻结比特位上进一步加载指示信息，从而在不增加信令开销的基础上，将传输数据的传输特征信息指示给终端，节省了带宽资源。
本实施例中，传输数据的传输特征信息，可以是传输数据的个性化传输特征，该个性化传输特征在现有技术中通常需要增加信令开销指示给终端，以使终端能够区分处理，而通过本实施例提供的方法，既可以使终端区分出该传输数据的个性化传输特征，又可以节省信令开销，从而节省带宽资源。
本实施例中传输特征信息包括但不限于如下任一传输特征信息：
1)传输数据对应的业务类型；
目前传输数据的业务类型比较多，对于需要区分业务类型的传输情况，可以用冻结比特位上携带的指示信息，指示当前传输数据对应的业务类型。
传输数据的具体业务类型可以但不限于包括：增强移动宽带eMBB业务或者低时延高可靠URLLC业务或者mMTC业务或者未来引入的其他业务类型。
可选地，传输数据为携带调度信息的下行控制信息DCI，则在DCI经信道编码后的冻结比特位上携带指示信息，可以指示当前DCI是哪种业务类型数据的调度信息。
进一步地，不同的业务类型的传输数据使用相同的DCI格式。
2)传输数据对应的应用场景；
目前传输数据的应用场景比较多，对于需要区分应用场景的传输情况，可以用冻结比特位上携带的指示信息，指示当前传输数据对应的应用场景。
可选地，传输数据为携带调度信息的下行控制信息DCI，则在DCI经信道编码后的冻结比特位上携带指示信息，可以指示当前DCI是哪种应用场景的传输数据的调度信息。
进一步地，不同的传输特征信息对应不同的传输接收点TRP的数目，则可以指示当前DCI是TRP数目为r的传输模式的调度信息，r为正整数。
3)传输数据中指定信息块的内容；
对于传输数据的指定信息域，在不同的情况下需要携带不同的内容信息，为了使终端能够区分，本实施例中的传输特征信息可以为指定信息块的内容，从而使终端区分当前指定信息块中具体对应什么内容。
可选地，传输数据为携带调度信息的下行控制信息DCI，则在DCI经信道编码后的冻结比特位上携带指示信息，可以指示当前DCI的指定信息域中对应的调度信息的内容。
进一步地，对于DCI中指定信息块内容的不同，是由于采用不同的解析方式引起的，因此本实施例中不同的传输特征信息对应DCI中指定信息域采用不同的解析方式。
4)传输数据对应的内容格式。
对于传输数据的内容格式，在不同的情况下可能使用不同的内容格式，为了使终端能够区分，本实施例中的传输特征信息可以为传输数据对应的内容格式，从而使终端区分当前传输数据对应的内容格式。
可选地，传输数据为携带调度信息的下行控制信息DCI，则在DCI经信道编码后的冻结比特位上携带指示信息，可以指示当前DCI对应的内容格式。
进一步，传输特征信息为传输数据对应的内容格式时，不同的传输特征信息对应具有相同净负荷的不同DCI格式。
本实施例提供的数据传输方式，在传输数据经信道编码后的冻结比特位进一步加载了指示信息，具体加载指示信息时采用的方式可以但不限于采用如下方式：
根据传输数据的传输特征信息，选择对应的加干扰序列对所述冻结比特位进行加干扰，其中，不同的传输特征信息对应不同的加干扰序列。
本实施例并不限定加干扰序列的个数、长度以及具体信息位的设计。
可以预先根据不同的传输特征信息，建立不同的传输特征信息与不同的加干扰序列的对应关系，不同的加干扰序列可以具有相同或不同的长度。
具体地，本申请实施例方法，还包括：
预先与终端约定不同的传输特征信息对应的加干扰序列；
或者，通过发送显示信令将不同的传输特征信息对应的加干扰序列发送给终端。
采用预先约定，即通过协议定义的方式，定义多个不同的加干扰序列，用于对应不同的传输数据特征信息。
通过显示信令指示，所述显示信令包括但不限于如下任一信令：
无线资源控制RRC信令；
物理层L1信令；
媒体接入控制单元MAC CE信令。
具体地，本申请实施例方法，还包括：
预先与终端约定加干扰序列在冻结比特位的起始位置；
或者，通过发送显示信令将加干扰序列在冻结比特位的起始位置发送给终端。
所述加干扰序列对frozen bit进行bit级加干扰，加干扰的起始位置可以为第一个frozen bit或者最后一个frozen bit或者frozen bit中的任何一个bit位置。
其中，指示起始位置的显示信令包括但不限于如下任一信令：
无线资源控制RRC信令；
物理层L1信令；
媒体接入控制单元MAC CE信令。
预定义M个frozen bit的加干扰序列。
例如，可以预定义或通过信令通知M个frozen bit的加干扰序列，M为大于等于1的正整数。加干扰序列M1对应于增强型移动宽带eMBB(enhanced Mobile BroadBand)业务，M2对应于URLLC(Ultra Reliable&Low Latency Communication，低延时高可靠)业务，M3对应于mMTC(海量机器类通信)业务，M4对应于single-TRP传输，M5对应于multi-TRP传输，M6对应于MCS-table1，M7对应于MCS-table2，M8对应于DCI Format X，M9对应于DCI format Y等。
根据当前传输数据对应的加干扰序列，对frozen bit进行bit级加干扰，加干扰的起始位置为第一个frozen bit或者最后一个frozen bit或者frozen bit中的任何一个bit位置，加干扰完成后发送给终端。
利用本申请实施例提供的数据传输方法，可以使终端通过frozen bits上的加干扰序列区分不同的业务类型和/或不同的应用场景和/或不同的信息块内容/不同的内容格式等，同时不带来额外的信令开销或者无线网络临时标识RNTI值的开销。
本申请另一实施例，提供一种数据传输方法，应用于终端侧，应用的设备如手机终端等，如图2所示，该方法包括：
步骤201，接收传输数据经信道编码后得到的编码比特，所述编码比特包含携带指示信息的冻结比特位；
步骤202，根据所述冻结比特位上的指示信息，确定所述传输数据对应的传输特征信息。
本实施例中应用的信道可以是使用polar编码的信道或者任何使用具有frozen bit的编码方式的信道。
本申请实施例在接收到传输数据时，在解码前先解析frozen bits携带的指示信息，确定传输特征信息，之后再采用对应的处理方式对传输数据进行解码等处理。
如前所述，现有技术中该冻结比特位为收发端已知的固有比特，本申请实施例终端接收的frozen bits加载有指示信息，从而在不增加信令开销的基础上，可以确定终端传输数据的传输特征信息，能够进行区分处理。
本实施例中，传输数据的传输特征信息，可以是传输数据的个性化传输特征，该个性化传输特征在现有技术中通常需要增加信令开销指示给终端，以使终端能够区分处理，而通过本实施例提供的方法，在不增加信令开销的情况下，终端既可以区分出该传输数据的个性化传输特征。
本实施例中传输特征信息包括但不限于如下任一传输特征信息：
1)传输数据对应的业务类型；
目前传输数据的业务类型比较多，对于需要区分业务类型的传输情况，可以用冻结比特上携带的指示信息，指示当前传输数据对应的业务类型。
传输数据的具体业务类型可以但不限于包括：增强移动宽带eMBB业务或者低时延高可靠URLLC业务或者mMTC业务或者未来引入的其他业务类型。
可选地，传输数据为携带调度信息的下行控制信息DCI，则在DCI经信道编码后的冻结比特位上携带指示信息，可以指示当前DCI是哪种业务类型数据的调度信息。
进一步地，不同的业务类型的传输数据使用相同的DCI格式。
2)传输数据对应的应用场景；
目前传输数据的应用场景比较多，对于需要区分应用场景的传输情况，可以用冻结比特位上携带的指示信息，指示当前传输数据对应的应用场景。
可选地，传输数据为携带调度信息的下行控制信息DCI，则在DCI经信道编码后的冻结比特位上携带指示信息，可以指示当前DCI是哪种应用场景的传输数据的调度信息。
进一步地，不同的传输特征信息对应不同的传输接收点TRP的数目，则可以指示当前DCI是TRP数目为r的传输模式的调度信息，r为正整数。
3)传输数据中指定信息块的内容；
对于传输数据的指定信息块，在不同的情况下需要携带不同的内容信息，为了使终端能够区分，本实施例中的传输特征信息可以为指定信息块的内容，从而使终端区分当前指定信息块中具体对应什么内容。
可选地，传输数据为携带调度信息的下行控制信息DCI，则在DCI经信道编码后的冻结比特位上携带指示信息，可以指示当前DCI的指定信息块中对应的调度信息的内容。
进一步地，对于DCI中指定信息块内容的不同，是由于采用不同的解析方式引起的，因此本实施例中不同的传输特征信息对应DCI中指定信息域采用不同的解析方式。
4)传输数据对应的内容格式。
对于传输数据的内容格式，在不同的情况下可能使用不同的内容格式，为了使终端能够区分，本实施例中的传输特征信息可以为传输数据对应的内容格式，从而使终端区分当前传输数据对应的内容格式。
可选地，传输数据为携带调度信息的下行控制信息DCI，则在DCI经信道编码后的冻结比特位上携带指示信息，可以指示当前DCI对应的格式。
进一步，传输特征信息为传输数据对应的内容格式时，不同的传输特征信息对应具有相同净负荷的不同DCI格式。
本实施例提供的数据传输方式，根据所述冻结比特位上携带的指示信息，确定所述传输数据对应的传输特征信息，包括：
确定不同的传输特征信息对应的不同加干扰序列；
采用不同加干扰序列分别对所述冻结比特位进行解干扰；
确定解干扰后得到正确冻结比特位对应使用的加干扰序列，并根据该加干扰序列确定传输数据对应的传输特征信息。
本实施例并不限定加干扰序列的个数、长度以及具体信息位的设计。
可以预先根据不同的传输特征信息，建立不同的传输特征信息与不同的加干扰序列的对应关系，不同的加干扰序列可以具有相同或不同的长度。
本申请实施例在解码前，具体根据先验信息确定frozen bits上携带的指示信息，该先验信息可以是终端侧和基站侧约定好的不同的传输特征信息对应的不同加干扰序列，或者为基站通过显示信令通知的传输特征信息对应的不同加干扰序列。
先验信息为长度为N的二进制bit序列，所述N为大于等于1的正整数，且小于frozen bit的长度。
本申请实施例的方法还包括：
根据与基站预先约定，确定不同的传输特征信息对应的加干扰序列；
或者，通过接收基站发送的显示信令，确定不同的传输特征信息对应的加干扰序列。
具体地，本申请实施例方法，所述显示信令包括如下任一信令：
无线资源控制RRC信令；
物理层L1信令；
媒体接入控制单元MAC CE信令。
具体地，采用不同加干扰序列分别对所述冻结比特位进行解干扰，包括：
通过与基站预先约定，或通过接收基站发送的显示信令，确定加干扰序列在冻结比特位的起始位置；
从所述冻结比特位的起始位置开始，采用不同加干扰序列分别对所述冻结比特位进行解干扰。
所述加干扰序列对frozen bit进行bit级加干扰，加干扰的起始位置可以为第一个frozen bit或者最后一个frozen bit或者frozen bit中的任何一个bit位置。
其中，指示起始位置的显示信令包括但不限于如下任一信令：
无线资源控制RRC信令；
物理层L1信令；
媒体接入控制单元MAC CE信令。
例如，可以预定义或通过信令通知确定M个frozen bit的加干扰序列，M为大于等于1的正整数。加干扰序列M1对应于增强型移动宽带eMBB(enhanced Mobile BroadBand)业务，M2对应于URLLC(Ultra Reliable&Low Latency Communication，低延时高可靠)业务，M3对应于mMTC(海量机器类通信)业务，M4对应于single-TRP传输，M5对应于multi-TRP传输，M6对应于MCS-table1，M7对应于MCS-table2，M8对应于DCI Format X，M9对应于DCI format Y等。
采用上述加干扰序列分别对frozen bit进行bit级加干扰，加干扰的起始位置为第一个frozen bit或者最后一个frozen bit或者frozen bit中的任何一个bit位置，解干扰得到正确的frozen bit，根据当前使用的加干扰序列确定对应的传输特征信息。
利用本申请实施例提供的数据传输方法，终端可以通过frozen bits上的加干扰序列区分不同的业务类型和/或不同的应用场景和/或不同的信息块内容/不同的内容格式等，同时不带来额外的信令开销或者无线网络临时标识RNTI值的开销。
下面从基站侧和终端侧交互的角度，给出本申请数据传输方法的优选实施例。
实施例1：
终端支持不同的业务类型，例如终端同时支持增强移动宽带eMBB业务，低时延高可靠URLLC业务，且基站使用具有相同净负荷的DCI调度eMBB业务和URLLC业务。显然由于业务类型的不同，调度eMBB业务和调度URLLC业务的DCI中的调度信息不同。
通过协议预定义的方式，分别为两种业务引入不同的frozen bit加干扰序列S1和S2。所述S1和S2可以通过不同的方式构成，包括但是不限于如下方式：
1)S1和S2具有相同的序列长度L，但是具有不同的bit信息，例如S1为全0的bit，S2为全1的bit；
2)S1和S2具有不同的序列长度L1和L2，且携带不同的信息bit。
基站利用上述序列分别对调度eMBB业务和URLLC业务的DCI经过polar编码后的frozen bits进行比特级加干扰。
frozen bit的加干扰序列对frozen bit进行bit级加干扰，加干扰的起始位置为第一个frozen bit或者最后一个frozen bit或者frozen bit中的任何一个bit位置。
终端检测接收调度数据的DCI时，在polar译码之前首先根据S1和S2分别对DCI的frozen bit进行解干扰，如果按照S1解干扰成功，则获知该DCI为调度eMBB业务的DCI；若按照S2解干扰成功，则获知该DCI为调度URLLC业务的DCI。
进一步地，frozen bits的加干扰bit序列的个数可以为N个不同的序列， 用于区分更多的业务类型。例如gNB为了降低盲检的需要，采用相同大小的DCI调度eMBB/URLLC/mMTC业务，则可引入3个不同的frozen bits加干扰序列。例如加干扰序列的长度为8，则S1为{0 0 0 0 0 0 0 0}，S2为{1 1 1 1 1 1 1 1}，S3为{1 0 1 0 1 0 1 0}。
当然，本申请实施例并不限定所述加干扰序列的个数、长度以及具体信息位的设计。
实施例2：
本实施例中终端支持不同的应用场景，例如单传输接收点single-TRP传输和多传输接收点multi-TRP传输。在single-TRP传输场景中，终端只需要在一个下行控制信道的监测时隙monitoring occasion内检测接收到一个调度下行数据的DCI，即接收到该DL assignment(DL赋值)后不再期望接收到其他调度下行数据的DL assignment。在multi-TRP场景中，终端需要在一个下行控制信道的monitoring occasion内检测多个来自于不同TRP的调度信息，即终端需要在monitoring occasion内持续盲检。
本实施例中协议预定义两个frozen bits加干扰序列T1和T2，其中T1对应single TRP场景，T2对应multi-TRP场景。T1和T2可以通过不同的方式构成，包括但是不限于：
1)T1和T2具有相同的序列长度L，但是具有不同的bit信息，例如T1为全0的bit，T2为全1的bit；
2)T1和T2具有不同的序列长度L1和L2，且携带不同的信息bit。
基站利用frozen bit的加干扰序列对DCI经polar编码后的frozen bit进行bit级加干扰，加干扰的起始位置为第一个frozen bit或者最后一个frozen bit或者frozen bit中的任何一个bit位置。
终端检测接收调度数据的DCI时，在polar译码之前首先根据T1和T2分别对DCI的frozen bit进行解干扰，如果按照T1解干扰成功，则获知此时传输为single TRP场景；若按照T2解干扰成功，则获知此时传输为multi-TRP，终端需要在一个下行控制信道的monitoring occasion内检测接收多个TRP的 调度信息。
进一步的，可以引入多个加干扰序列，可以进一步指示当前multi-TRP传输的TRP数目。
实施例3：
本实施例中基站使用特定的DCI format调度终端。
为了动态的适应业务状况的变化，或者动态的适应性能要求指标的变化等，DCI中的特定bit域对应的内容可能会发生变化。
本实施例中DCI中指定信息块为调度与编码策略指示域和时间域，例如DCI中5bit的MCS(Modulation and Coding Scheme，调制与编码策略)指示域，在不同的情况下可能对应不同的表格，从而映射出不同的信息块内容；4bit的time domain RA域，在不同情况下可能对应不同的时域分配表格等情况。具体的，基站可以通过RRC signaling为DCI中特定的bit field配置多套参数，通过不同的加干扰序列对不同的参数配置进行加干扰，终端通过解干扰frozen bits上的加干扰序列，获知所述bit field相关联的半静态配置参数。
在此例中，以MCS指示域为例。
假设基站通过RRC signaling为终端配置了两个MCS table，分别对应于不同的码率或者可靠性要求。对应的，通过协议预定义的方式，规定MCS table1对应于frozen bits加干扰序列M1，MCS table2对应于frozen bits加干扰序列M2。基站使用frozen bit的加干扰序列对frozen bit进行bit级加干扰，加干扰的起始位置为第一个frozen bit或者最后一个frozen bit或者frozen bit中的任何一个bit位置。终端检测接收调度数据的DCI时，在polar译码之前首先根据M1和M2分别对DCI的frozen bit进行解干扰，如果按照M1解干扰成功，则获知该DCI中的MCS指示域的指示信息对应于MCS table1；若按照M2解干扰成功，则获知该DCI中的MCS指示域的指示信息对应于MCS table2。
当然，该方法可以应用于其他bit field。
实施例4：
本实施例中为了降低盲检次数，不同的DCI format可以具有相同的payload size。
可以引入不同的frozen bits加干扰序列，用于区分具有相同size的不同DCI format size。假设有3种不同的DCI format具有相同的payload size，分别为DCI format1，DCI format2，DCI format3。通过协议预定义的方式为每种DCI format引入一个frozen bits加干扰序列，例如P1，P2，P3。假设P1，P2，P3具有相同的长度，且长度为16，一种可能的例子为P1＝{0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0}，P2＝{1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1}，P3＝{1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0}。
基站利用frozen bit的加干扰序列对frozen bit进行bit级加干扰，加干扰的起始位置为第一个frozen bit或者最后一个frozen bit或者frozen bit中的任何一个bit位置。
终端检测接收调度数据的DCI时，在polar译码之前首先根据P1、P2和P3分别对DCI的frozen bit进行解干扰，如果按照P1解干扰成功，则获知该DCI为DCI format1；若按照P2解干扰成功，则获知该DCI为DCI format2；若按照P3解干扰成功，则获知该DCI为DCI format3。
本申请上述实施例是以传输数据为DCI为例，具体实现时该方法不限定于仅应用于控制信息。
基于同一发明思想，参见图3，本申请实施例提供的一种数据装置，该装置包括：
指示单元301，用于在传输数据经信道编码后的冻结比特位上携带指示信息，所述指示信息用于指示所述传输数据的传输特征信息；
发送单元302，用于将编码比特发送给终端，所述编码比特包含携带所述指示信息的冻结比特位。
可选地，所述指示单元301在传输数据经信道编码后的冻结比特位上携带指示信息，包括：
根据传输数据的传输特征信息，选择对应的加干扰序列对所述冻结比特 位进行加干扰，其中，不同的传输特征信息对应不同的加干扰序列。
可选地，所述传输特征信息包括如下任一传输特征信息：
传输数据对应的业务类型；
传输数据对应的应用场景；
传输数据中指定信息块的内容；
传输数据对应的内容格式。
可选地，所述传输数据为下行控制信息DCI。
可选地，所述传输特征信息为传输数据对应的业务类型时，不同的业务类型的传输数据使用相同的DCI格式；
所述传输特征信息为传输数据对应的应用场景时，不同的传输特征信息对应不同的传输接收点TRP的数目；
所述传输特征信息为指定信息块的内容时，不同的传输特征信息对应DCI中指定信息域采用的不同的解析方式；
所述传输特征信息为传输数据对应的内容格式时，不同的传输特征信息对应具有相同净负荷的不同DCI格式。
可选地，该装置还包括：
第一约定单元，用于预先与终端约定不同的传输特征信息对应的加干扰序列；
或者，第一显示指示单元，用于通过发送显示信令将不同的传输特征信息对应的加干扰序列发送给终端。
可选地，所述显示信令包括如下任一信令：
无线资源控制RRC信令；
物理层L1信令；
媒体接入控制单元MAC CE信令。
可选地，该装置还包括：
第二约定单元，用于预先与终端约定加干扰序列在冻结比特位的起始位置；
或者，第二显示指示单元，用于通过发送显示信令将加干扰序列在冻结比特位的起始位置发送给终端。
本申请实施例还提供一种数据传输装置，如图4所示，该装置包括：
接收单元401，用于接收传输数据经信道编码后得到的编码比特，所述编码比特包含携带指示信息的冻结比特位；
特征确定单元402，用于根据所述冻结比特位上携带的指示信息，确定所述传输数据对应的传输特征信息，从而根据所述传输特征信息，采用对应的处理方式对所述传输数据处理。
可选地，所述特征确定单元402根据所述冻结比特位上携带的指示信息，确定所述传输数据对应的传输特征信息，包括：
确定不同的传输特征信息对应的不同加干扰序列；
采用不同加干扰序列分别对所述冻结比特位进行解干扰；
确定解干扰后得到正确冻结比特位对应使用的加干扰序列，并根据该加干扰序列确定传输数据对应的传输特征信息。
可选地，所述传输特征信息包括如下任一传输特征信息：
传输数据对应的业务类型；
传输数据对应的应用场景；
传输数据中指定信息块的内容；
传输数据对应的内容格式。
可选地，所述传输数据为下行控制信息DCI。
可选地，所述传输特征信息为传输数据对应的业务类型时，不同的业务类型的传输数据使用相同的DCI格式；
所述传输特征信息为传输数据对应的应用场景时，不同的传输特征信息对应不同的传输接收点TRP的数目；
所述传输特征信息为指定信息块的内容时，不同的传输特征信息对应DCI中指定信息域采用的不同的解析方式；
所述传输特征信息为传输数据对应的内容格式时，不同的传输特征信息 对应具有相同净负荷的不同DCI格式。
可选地，确定不同的传输特征信息对应的不同加干扰序列，包括：
根据与基站预先约定，确定不同的传输特征信息对应的加干扰序列；
或者，通过接收基站发送的显示信令，确定不同的传输特征信息对应的加干扰序列。
可选地，所述显示信令包括如下任一信令：
无线资源控制RRC信令；
物理层L1信令；
媒体接入控制单元MAC CE信令。
可选地，所述特征确定单元采用不同加干扰序列分别对所述冻结比特位进行解干扰，包括：
通过与基站预先约定，或通过接收基站发送的显示信令，确定加干扰序列在冻结比特位的起始位置；
从所述冻结比特位的起始位置开始，采用不同加干扰序列分别对所述冻结比特位进行解干扰。
本领域内的技术人员应明白，本发明的实施例可提供为方法、系统、或计算机程序产品。因此，本发明可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本发明可采用在一个或多个其中包含有计算机可读程序代码的计算机可读存储介质(包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的 装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。

Claims (20)

  1. 一种数据传输方法，其特征在于，该方法包括：
    在传输数据经信道编码后的冻结比特位上携带指示信息，所述指示信息用于指示所述传输数据的传输特征信息；
    将编码比特发送给终端，所述编码比特包含携带所述指示信息的冻结比特位。
  2. 根据权利要求1所述的方法，其特征在于，在传输数据经信道编码后的冻结比特位上携带指示信息，包括：
    根据传输数据的传输特征信息，选择对应的加干扰序列对所述冻结比特位进行加干扰，其中，不同的传输特征信息对应不同的加干扰序列。
  3. 根据权利要求1或2所述的方法，其特征在于，所述传输特征信息包括如下任一传输特征信息：
    传输数据对应的业务类型；
    传输数据对应的应用场景；
    传输数据中指定信息块的内容；
    传输数据对应的内容格式。
  4. 根据权利要求3所述的方法，其特征在于，所述传输数据为下行控制信息DCI。
  5. 根据权利要求4所述的方法，其特征在于，
    所述传输特征信息为传输数据对应的业务类型时，不同的业务类型的传输数据使用相同的DCI格式；
    所述传输特征信息为传输数据对应的应用场景时，不同的传输特征信息对应不同的传输接收点TRP的数目；
    所述传输特征信息为指定信息块的内容时，不同的传输特征信息对应DCI中指定信息域采用的不同的解析方式；
    所述传输特征信息为传输数据对应的内容格式时，不同的传输特征信息 对应具有相同净负荷的不同DCI格式。
  6. 根据权利要求2所述的方法，其特征在于，还包括:
    预先与终端约定不同的传输特征信息对应的加干扰序列；或者
    通过发送显示信令将不同的传输特征信息对应的加干扰序列发送给终端。
  7. 根据权利要求6所述的方法，其特征在于，所述显示信令包括如下任一信令：
    无线资源控制RRC信令；
    物理层L1信令；
    媒体接入控制单元MAC CE信令。
  8. 根据权利要求2所述的方法，其特征在于，还包括：
    预先与终端约定加干扰序列在冻结比特位的起始位置；或者
    通过发送显示信令将加干扰序列在冻结比特位的起始位置发送给终端。
  9. 一种数据传输方法，其特征在于，该方法包括：
    接收传输数据经信道编码后得到的编码比特，所述编码比特包含携带指示信息的冻结比特位；
    根据所述冻结比特位上的指示信息，确定所述传输数据对应的传输特征信息。
  10. 根据权利要求9所述的方法，其特征在于，根据所述冻结比特位上的携带的指示信息，确定所述传输数据对应的传输特征信息，包括：
    确定不同的传输特征信息对应的不同加干扰序列；
    采用不同加干扰序列分别对所述冻结比特位进行解干扰；
    确定解干扰后得到正确冻结比特位对应使用的加干扰序列，并根据该加干扰序列确定传输数据对应的传输特征信息。
  11. 根据权利要求9或10所述的方法，其特征在于，所述传输特征信息包括如下任一传输特征信息：
    传输数据对应的业务类型；
    传输数据对应的应用场景；
    传输数据中指定信息块的内容；
    传输数据对应的内容格式。
  12. 根据权利要求11所述的方法，其特征在于，所述传输数据为下行控制信息DCI。
  13. 根据权利要求12所述的方法，其特征在于，
    所述传输特征信息为传输数据对应的业务类型时，不同的业务类型的传输数据使用相同的DCI格式；
    所述传输特征信息为传输数据对应的应用场景时，不同的传输特征信息对应不同的传输接收点TRP的数目；
    所述传输特征信息为指定信息块的内容时，不同的传输特征信息对应DCI中指定信息域采用的不同的解析方式；
    所述传输特征信息为传输数据对应的内容格式时，不同的传输特征信息对应具有相同净负荷的不同DCI格式。
  14. 根据权利要求10所述的方法，其特征在于，确定不同的传输特征信息对应的不同加干扰序列，包括：
    根据与基站预先约定，确定不同的传输特征信息对应的加干扰序列；或者
    通过接收基站发送的显示信令，确定不同的传输特征信息对应的加干扰序列。
  15. 根据权利要求14所述的方法，其特征在于，所述显示信令包括如下任一信令：
    无线资源控制RRC信令；
    物理L1信令；
    媒体接入控制单元MAC CE信令。
  16. 根据权利要求10所述的方法，其特征在于，采用不同加干扰序列分别对所述冻结比特位进行解干扰，包括：
    通过与基站预先约定，或通过接收基站发送的显示信令，确定加干扰序 列在冻结比特位的起始位置；
    从所述冻结比特位的起始位置开始，采用不同加干扰序列分别对所述冻结比特位进行解干扰。
  17. 一种通信装置，其特征在于，包括：处理器、存储器、收发机；所述处理器，用于读取所述存储器中的计算机指令，执行如权利要求1-8中任一项所述的方法。
  18. 一种通信装置，其特征在于，包括：处理器、存储器、收发机；所述处理器，用于读取所述存储器中的计算机指令，执行如权利要求9-16中任一项所述的方法。
  19. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质存储有计算机可执行指令，所述计算机可执行指令用于使所述计算机执行如权利要求1-8中任一项权利要求所述的方法。
  20. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质存储有计算机可执行指令，所述计算机可执行指令用于使所述计算机执行如权利要求9-16中任一项权利要求所述的方法。
PCT/CN2019/090927 2018-07-03 2019-06-12 一种数据传输方法及装置 Ceased WO2020007170A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810719499.X 2018-07-03
CN201810719499.XA CN110677217B (zh) 2018-07-03 2018-07-03 一种数据传输方法及装置

Publications (1)

Publication Number Publication Date
WO2020007170A1 true WO2020007170A1 (zh) 2020-01-09

Family

ID=69060673

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/090927 Ceased WO2020007170A1 (zh) 2018-07-03 2019-06-12 一种数据传输方法及装置

Country Status (2)

Country Link
CN (1) CN110677217B (zh)
WO (1) WO2020007170A1 (zh)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017106246A2 (en) * 2015-12-14 2017-06-22 Idac Holdings, Inc. Wtru identification using polar code frozen bits
US20180034587A1 (en) * 2016-07-29 2018-02-01 Lg Electronics Inc. Method for performing polar coding and apparatus therefor
TW201813359A (zh) * 2016-08-10 2018-04-01 美商Ｉｄａｃ控股公司 控制資訊優先基礎通道編碼

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105515718B (zh) * 2014-09-19 2019-11-15 中兴通讯股份有限公司 一种多业务控制信道发送的方法和装置
CN107027184B (zh) * 2016-02-02 2020-01-14 电信科学技术研究院 一种下行控制信息传输方法及装置
CN108631923B (zh) * 2017-03-24 2020-11-17 华为技术有限公司 传输信息的方法、网络设备和终端设备

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017106246A2 (en) * 2015-12-14 2017-06-22 Idac Holdings, Inc. Wtru identification using polar code frozen bits
US20180034587A1 (en) * 2016-07-29 2018-02-01 Lg Electronics Inc. Method for performing polar coding and apparatus therefor
TW201813359A (zh) * 2016-08-10 2018-04-01 美商Ｉｄａｃ控股公司 控制資訊優先基礎通道編碼

Also Published As

Publication number Publication date
CN110677217A (zh) 2020-01-10
CN110677217B (zh) 2021-05-11

Similar Documents

Publication Publication Date Title
US11212036B2 (en) Data communication method, device, and system
US20220174475A1 (en) Downlink Transmission Method and Apparatus
CN110324897B (zh) 频域资源分配的指示信息发送方法及装置、接收方法及装置、存储介质、基站、用户终端
US10225047B2 (en) Method and apparatus for multicast block acknowledgement
US11728931B2 (en) Communication method, network device, and terminal
US20220353849A1 (en) Method for determining sidelink feedback information and communication device
CN114902598B (zh) 无线通信系统中的波束指示方法
CN108811052B (zh) 一种下行控制信道检测接收方法、终端和网络侧设备
AU2019220254A1 (en) Method and apparatus for mapping uplink control information in wireless communication system
CN114731174B (zh) 无线通信方法及通信装置
CN114788209B (zh) 用于无线通信系统中的改进的信道估计的参考信号参数修改
JP2024515542A (ja) 複数スロットにまたがるトランスポートブロックの送信のための冗長バージョンをシフトする方法
WO2018201915A1 (zh) 数据处理方法和装置
CN112887074B (zh) 信息发送方法、装置、终端、接入网设备及系统
CA3070008A1 (en) Uplink control channel resource determination method, terminal, and network side device
CN112399586A (zh) 配置时域资源的方法和装置
CN109479266B (zh) 数据传输方法、网络设备及终端设备
CN103517439A (zh) 位置处理方法及基站、终端
US11683758B2 (en) Reduced power consumption of redcap UE in PDCCH monitoring
US12483358B2 (en) Communication method, communication device, electronic device and computer storage medium
US9474066B2 (en) Method and apparatus of transmitting and receiving system information in a wireless system
CN110536270A (zh) 数据发送、接收方法、装置、终端、基站及存储介质
CN113163503B (zh) 用于下行数据信道接收和发送的方法以及通信装置
CN108111454A (zh) 信息传输方法及装置、电子设备
CN110677217B (zh) 一种数据传输方法及装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19830092

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19830092

Country of ref document: EP

Kind code of ref document: A1