WO2018171538A1 - 数据传输方法、网络设备及终端设备 - Google Patents

数据传输方法、网络设备及终端设备 Download PDF

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Publication number
WO2018171538A1
WO2018171538A1 PCT/CN2018/079412 CN2018079412W WO2018171538A1 WO 2018171538 A1 WO2018171538 A1 WO 2018171538A1 CN 2018079412 W CN2018079412 W CN 2018079412W WO 2018171538 A1 WO2018171538 A1 WO 2018171538A1
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Prior art keywords
dmrs port
cbg
bit sequence
port group
data bit
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PCT/CN2018/079412
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English (en)
French (fr)
Inventor
任海豹
黄逸
王龙保
李元杰
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华为技术有限公司
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Priority claimed from CN201710685195.1A external-priority patent/CN108631815B/zh
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP18772421.6A priority Critical patent/EP3579434B1/en
Publication of WO2018171538A1 publication Critical patent/WO2018171538A1/zh
Priority to US16/579,413 priority patent/US11038644B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7097—Interference-related aspects
    • H04B1/711—Interference-related aspects the interference being multi-path interference
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H04J11/0023—Interference mitigation or co-ordination
    • H04J11/0026—Interference mitigation or co-ordination of multi-user interference
    • H04J11/0036—Interference mitigation or co-ordination of multi-user interference at the receiver
    • 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
    • H04L1/0006—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0057—Block codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0803—Configuration setting
    • H04L41/0806—Configuration setting for initial configuration or provisioning, e.g. plug-and-play
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/085—Retrieval of network configuration; Tracking network configuration history
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/085—Retrieval of network configuration; Tracking network configuration history
    • H04L41/0853—Retrieval of network configuration; Tracking network configuration history by actively collecting configuration information or by backing up configuration information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0893—Assignment of logical groups to network elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0016—Time-frequency-code
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0061—Error detection codes

Definitions

  • the present application relates to communication technologies, and in particular, to a data transmission method, a network device, and a terminal device.
  • MIMO Multiple-Input Multiple-Output
  • MIMO technology refers to the use of multiple transmit and receive antennas at the transmitting end and the receiving end, respectively, so that the transmitted signal is transmitted and received through multiple antennas at the transmitting end and the receiving end, thereby improving Communication quality. Since MIMO technology can make full use of space resources and achieve multiple transmission and reception through multiple antennas, the system channel capacity can be doubled without increasing the spectrum resources and antenna transmission power, showing obvious advantages and being regarded as The core technology of a generation of mobile communications.
  • the embodiment of the present invention provides a data transmission method, a network device, and a terminal device, which can independently decode a data stream mapped on different transport layers.
  • an embodiment of the present application provides a data transmission method, including:
  • the network device determines a demodulation reference signal DMRS port group; the number of DMRS port groups is greater than or equal to 2;
  • the network device and the terminal device perform data transmission; wherein the data corresponds to the transport block, the transport block is divided into at least one coded block group CBG, each of the at least one CBG corresponds to one DMRS port group, and is mapped to the one DMRS port group The corresponding transport layer.
  • the data streams sent by different DMRS port groups are differently belonged to different CBGs, so that the terminal device can separately decode the CBG corresponding to each DMRS port group, that is, the data streams mapped on different transport layers can be independently translated.
  • the code is capable of supporting the interference cancellation receiver for interference cancellation.
  • the transport block is divided into at least one CBG, including:
  • the transport block plus the redundancy check bit is divided into N code blocks CB;
  • B represents the total number of bits after the transport block plus the redundant check digit, and
  • c represents the preset value. Representing the upward rounding operation;
  • the N CBs are divided into CBGs corresponding to the DMRS port group.
  • the number of CBs included in each CBG is equal to the value calculated by the following formula: or
  • B 0 represents the number of data bits transmitted by the DMRS port group corresponding to the CBG
  • B s represents the sum of the number of data bits transmitted by each DMRS port group. Represents a rounding down operation, Represents rounding up operations.
  • the transport block is divided into at least one CBG, including:
  • the transport block is divided into sub-transport blocks corresponding to each DMRS port group;
  • Each sub-transport block is separately encoded to obtain a CBG corresponding to the DMRS port group.
  • the method also includes:
  • the network device sends a notification message to the terminal device, where the notification message carries the configuration information of the DMRS port group.
  • each of the at least one CBG is mapped to a transport layer corresponding to the one DMRS port group, including:
  • the data bit sequence included in the CBG corresponding to each DMRS port group is sequentially extracted by a preset number of data bits according to the first preset sequence, and serially concatenated to obtain a concatenated data bit sequence;
  • the concatenated data bit sequence is mapped to each transport layer according to a preset mapping strategy.
  • the data bit sequence included in the CBG corresponding to each DMRS port group is sequentially extracted by a preset number of data bits according to the first preset sequence, and serially concatenated to obtain a concatenated data bit sequence, including:
  • the first data bit sequence to the mth data bit sequence are sequentially serially cascaded to obtain a concatenated data bit sequence; m The total number of times the data bit sequence included in the CBG corresponding to each DMRS port group is extracted, and m is a positive integer greater than or equal to 2;
  • the first data bit sequence is a data bit sequence in which the data bit sequence included in the CBG corresponding to each DMRS port group is sequentially extracted in the second predetermined order, and the data bit sequence obtained by serial concatenation is performed.
  • Qi represents the number of extracted data bits in the data bit sequence included in the CBG corresponding to the i-th DMRS port group, 1 ⁇ i ⁇ R and i is a positive integer, R is the number of each DMRS port group and R is greater than or a positive integer equal to 2, L i is the number of transmission layers corresponding to the i-th DMRS port group, and q l is the modulation order corresponding to the l-th transmission layer;
  • the k-th data bit sequence is a sequence of data bits obtained by serially cascading the remaining data bit sequences included in the CBGs corresponding to the DMRS port groups, and sequentially extracting the first Q data bits in a second predetermined order; wherein, 2 ⁇ k ⁇ m, the remaining data bit sequence included in the CBG corresponding to the DMRS port group includes: the data bits remaining after the k-1 data bits are extracted from the data bit sequence included in the CBG corresponding to the DMRS port group.
  • an embodiment of the present application provides a data transmission method, including:
  • the terminal device acquires configuration information of the DMRS port group of the demodulation reference signal; the number of the DMRS port group is greater than or equal to 2;
  • the terminal device and the network device perform data transmission; wherein the data corresponds to the transport block, the transport block is divided into at least one coded block group CBG, and each of the at least one CBG corresponds to one DMRS port group, and is mapped to the one DMRS port group.
  • the corresponding transport layer The terminal device and the network device perform data transmission; wherein the data corresponds to the transport block, the transport block is divided into at least one coded block group CBG, and each of the at least one CBG corresponds to one DMRS port group, and is mapped to the one DMRS port group.
  • the data transmission method provided by the second aspect the data transmission is performed by the terminal device and the network device; wherein the data corresponds to the transport block, the transport block is divided into at least one coded block group CBG, and each of the at least one CBG corresponds to the DMRS A port group and mapped to a transport layer corresponding to the one DMRS port group.
  • the data streams sent by different DMRS port groups are differently belonged to different CBGs, so that the network device can separately decode the CBG corresponding to each DMRS port group, that is, the data streams mapped on different transport layers can be independently translated. code.
  • the transport block is divided into at least one CBG, including:
  • the transport block plus the redundancy check bit is divided into N code blocks CB;
  • B represents the total number of bits after the transport block plus the redundant check digit, and
  • c represents the preset value. Representing the upward rounding operation;
  • the N CBs are divided into CBGs corresponding to the DMRS port group.
  • the number of CBs included in each CBG is equal to the value calculated by the following formula: or
  • B 0 represents the number of data bits transmitted by the DMRS port group corresponding to the CBG
  • B s represents the sum of the number of data bits transmitted by each DMRS port group. Represents a rounding down operation, Represents rounding up operations.
  • the transport block is divided into at least one CBG, including:
  • the transport block is divided into sub-transport blocks corresponding to each DMRS port group;
  • Each sub-transport block is separately encoded to obtain a CBG corresponding to the DMRS port group.
  • the terminal device acquires configuration information of the DMRS port group of the demodulation reference signal, including:
  • the terminal device receives the notification message sent by the network device, where the notification message carries the configuration information of the DMRS port group.
  • each of the at least one CBG is mapped to a transport layer corresponding to the one DMRS port group, including:
  • the data bit sequence included in the CBG corresponding to each DMRS port group is sequentially extracted by a preset number of data bits according to the first preset sequence, and serially concatenated to obtain a concatenated data bit sequence;
  • the concatenated data bit sequence is mapped to each transport layer according to a preset mapping strategy.
  • the data bit sequence included in the CBG corresponding to each DMRS port group is sequentially extracted by a preset number of data bits according to the first preset sequence, and serially concatenated to obtain a concatenated data bit sequence, including:
  • the first data bit sequence to the mth data bit sequence are sequentially serially cascaded to obtain a concatenated data bit sequence; m The total number of times the data bit sequence included in the CBG corresponding to each DMRS port group is extracted, and m is a positive integer greater than or equal to 2;
  • the first data bit sequence is a data bit sequence in which the data bit sequence included in the CBG corresponding to each DMRS port group is sequentially extracted in the second predetermined order, and the data bit sequence obtained by serial concatenation is performed.
  • Qi represents the number of extracted data bits in the data bit sequence included in the CBG corresponding to the i-th DMRS port group, 1 ⁇ i ⁇ R and i is a positive integer, R is the number of each DMRS port group and R is greater than or a positive integer equal to 2, L i is the number of transmission layers corresponding to the i-th DMRS port group, and q l is the modulation order corresponding to the l-th transmission layer;
  • the k-th data bit sequence is a sequence of data bits obtained by serially cascading the remaining data bit sequences included in the CBGs corresponding to the DMRS port groups, and sequentially extracting the first Q data bits in a second predetermined order; wherein, 2 ⁇ k ⁇ m, the remaining data bit sequence included in the CBG corresponding to the DMRS port group includes: the data bits remaining after the k-1 data bits are extracted from the data bit sequence included in the CBG corresponding to the DMRS port group.
  • an embodiment of the present application provides a network device, including:
  • a determining module configured to determine a demodulation reference signal DMRS port group; the number of DMRS port groups is greater than or equal to 2;
  • a transmission module configured to perform data transmission with the terminal device; wherein, the data corresponds to the transport block, the transport block is divided into at least one coded block group CBG, each of the at least one CBG corresponds to one DMRS port group, and is mapped to one DMRS port The transport layer corresponding to the group.
  • the transport block is divided into at least one CBG, including:
  • the transport block plus the redundancy check bit is divided into N code blocks CB;
  • B represents the total number of bits after the transport block plus the redundant check digit, and
  • c represents the preset value. Representing the upward rounding operation;
  • the N CBs are divided into CBGs corresponding to the DMRS port group.
  • the number of CBs included in each CBG is equal to the value calculated by the following formula: or
  • B 0 represents the number of data bits transmitted by the DMRS port group corresponding to the CBG
  • B s represents the sum of the number of data bits transmitted by each DMRS port group. Represents a rounding down operation, Represents rounding up operations.
  • the transport block is divided into at least one CBG, including:
  • the transport block is divided into sub-transport blocks corresponding to each DMRS port group;
  • Each sub-transport block is separately encoded to obtain a CBG corresponding to the DMRS port group.
  • the network device also includes:
  • the notification module is configured to send a notification message to the terminal device, where the notification message carries the configuration information of the DMRS port group.
  • each of the at least one CBG is mapped to a transport layer corresponding to the one DMRS port group, including:
  • the data bit sequence included in the CBG corresponding to each DMRS port group is sequentially extracted by a preset number of data bits according to the first preset sequence, and serially concatenated to obtain a concatenated data bit sequence;
  • the concatenated data bit sequence is mapped to each transport layer according to a preset mapping strategy.
  • the data bit sequence included in the CBG corresponding to each DMRS port group is sequentially extracted by a preset number of data bits according to the first preset sequence, and serially concatenated to obtain a concatenated data bit sequence, including:
  • the first data bit sequence to the mth data bit sequence are sequentially serially cascaded to obtain a concatenated data bit sequence; m The total number of times the data bit sequence included in the CBG corresponding to each DMRS port group is extracted, and m is a positive integer greater than or equal to 2;
  • the first data bit sequence is a data bit sequence in which the data bit sequence included in the CBG corresponding to each DMRS port group is sequentially extracted in the second predetermined order, and the data bit sequence obtained by serial concatenation is performed.
  • Qi represents the number of extracted data bits in the data bit sequence included in the CBG corresponding to the i-th DMRS port group, 1 ⁇ i ⁇ R and i is a positive integer, R is the number of each DMRS port group and R is greater than or a positive integer equal to 2, L i is the number of transmission layers corresponding to the i-th DMRS port group, and q l is the modulation order corresponding to the l-th transmission layer;
  • the k-th data bit sequence is a sequence of data bits obtained by serially cascading the remaining data bit sequences included in the CBGs corresponding to the DMRS port groups, and sequentially extracting the first Q data bits in a second predetermined order; wherein, 2 ⁇ k ⁇ m, the remaining data bit sequence included in the CBG corresponding to the DMRS port group includes: the data bits remaining after the k-1 data bits are extracted from the data bit sequence included in the CBG corresponding to the DMRS port group.
  • the embodiment of the present application provides a terminal device, including:
  • the acquiring module is configured to obtain configuration information of the DMRS port group of the demodulation reference signal; the number of the DMRS port group is greater than or equal to 2;
  • a transmission module configured to perform data transmission with the network device; wherein, the data corresponds to the transport block, the transport block is divided into at least one coded block group CBG, each of the at least one CBG corresponds to one DMRS port group, and is mapped to one DMRS port The transport layer corresponding to the group.
  • the transport block is divided into at least one CBG, including:
  • the transport block plus the redundancy check bit is divided into N code blocks CB;
  • B represents the total number of bits after the transport block plus the redundant check digit, and
  • c represents the preset value. Representing the upward rounding operation;
  • the N CBs are divided into CBGs corresponding to the DMRS port group.
  • the number of CBs included in each CBG is equal to the value calculated by the following formula: or
  • B 0 represents the number of data bits transmitted by the DMRS port group corresponding to the CBG
  • B s represents the sum of the number of data bits transmitted by each DMRS port group. Represents a rounding down operation, Represents rounding up operations.
  • the transport block is divided into at least one CBG, including:
  • the transport block is divided into sub-transport blocks corresponding to each DMRS port group;
  • Each sub-transport block is separately encoded to obtain a CBG corresponding to the DMRS port group.
  • the obtaining module is specifically configured to: receive a notification message sent by the network device, where the notification message carries configuration information of the DMRS port group.
  • each of the at least one CBG is mapped to a transport layer corresponding to the one DMRS port group, including:
  • the data bit sequence included in the CBG corresponding to each DMRS port group is sequentially extracted by a preset number of data bits according to the first preset sequence, and serially concatenated to obtain a concatenated data bit sequence;
  • the concatenated data bit sequence is mapped to each transport layer according to a preset mapping strategy.
  • the data bit sequence included in the CBG corresponding to each DMRS port group is sequentially extracted by a preset number of data bits according to the first preset sequence, and serially concatenated to obtain a concatenated data bit sequence, including:
  • the first data bit sequence to the mth data bit sequence are sequentially serially cascaded to obtain a concatenated data bit sequence; m The total number of times the data bit sequence included in the CBG corresponding to each DMRS port group is extracted, and m is a positive integer greater than or equal to 2;
  • the first data bit sequence is a data bit sequence in which the data bit sequence included in the CBG corresponding to each DMRS port group is sequentially extracted in the second predetermined order, and the data bit sequence obtained by serial concatenation is performed.
  • Qi represents the number of extracted data bits in the data bit sequence included in the CBG corresponding to the i-th DMRS port group, 1 ⁇ i ⁇ R and i is a positive integer, R is the number of each DMRS port group and R is greater than or a positive integer equal to 2, L i is the number of transmission layers corresponding to the i-th DMRS port group, and q l is the modulation order corresponding to the l-th transmission layer;
  • the k-th data bit sequence is a sequence of data bits obtained by serially cascading the remaining data bit sequences included in the CBGs corresponding to the DMRS port groups, and sequentially extracting the first Q data bits in a second predetermined order; wherein, 2 ⁇ k ⁇ m, the remaining data bit sequence included in the CBG corresponding to the DMRS port group includes: the data bits remaining after the k-1 data bits are extracted from the data bit sequence included in the CBG corresponding to the DMRS port group.
  • a fifth aspect of the present application provides a network device, including: a memory, a processor, and a transceiver;
  • the memory is used to store program instructions
  • the processor is configured to invoke a program instruction in the memory to perform the following steps: determining a demodulation reference signal DMRS port group; the number of DMRS port groups is greater than or equal to 2;
  • the transceiver is configured to perform data transmission with the terminal device; wherein the data corresponds to the transport block, the transport block is divided into at least one coded block group CBG, each of the at least one CBG corresponds to one DMRS port group, and is mapped to one DMRS port The transport layer corresponding to the group.
  • the transport block is divided into at least one CBG, including:
  • the transport block plus the redundancy check bit is divided into N code blocks CB;
  • B represents the total number of bits after the transport block plus the redundant check digit, and
  • c represents the preset value. Representing the upward rounding operation;
  • the N CBs are divided into CBGs corresponding to the DMRS port group.
  • the number of CBs included in each CBG is equal to the value calculated by the following formula: or
  • B 0 represents the number of data bits transmitted by the DMRS port group corresponding to the CBG
  • B s represents the sum of the number of data bits transmitted by each DMRS port group. Represents a rounding down operation, Represents rounding up operations.
  • the transport block is divided into at least one CBG, including:
  • the transport block is divided into sub-transport blocks corresponding to each DMRS port group;
  • Each sub-transport block is separately encoded to obtain a CBG corresponding to the DMRS port group.
  • the transceiver is further configured to: send a notification message to the terminal device, where the notification message carries configuration information of the DMRS port group.
  • each of the at least one CBG is mapped to a transport layer corresponding to the one DMRS port group, including:
  • the data bit sequence included in the CBG corresponding to each DMRS port group is sequentially extracted by a preset number of data bits according to the first preset sequence, and serially concatenated to obtain a concatenated data bit sequence;
  • the concatenated data bit sequence is mapped to each transport layer according to a preset mapping strategy.
  • the data bit sequence included in the CBG corresponding to each DMRS port group is sequentially extracted by a preset number of data bits according to the first preset sequence, and serially concatenated to obtain a concatenated data bit sequence, including:
  • the first data bit sequence to the mth data bit sequence are sequentially serially cascaded to obtain a concatenated data bit sequence; m The total number of times the data bit sequence included in the CBG corresponding to each DMRS port group is extracted, and m is a positive integer greater than or equal to 2;
  • the first data bit sequence is a data bit sequence in which the data bit sequence included in the CBG corresponding to each DMRS port group is sequentially extracted in the second predetermined order, and the data bit sequence obtained by serial concatenation is performed.
  • Qi represents the number of extracted data bits in the data bit sequence included in the CBG corresponding to the i-th DMRS port group, 1 ⁇ i ⁇ R and i is a positive integer, R is the number of each DMRS port group and R is greater than or a positive integer equal to 2, L i is the number of transmission layers corresponding to the i-th DMRS port group, and q l is the modulation order corresponding to the l-th transmission layer;
  • the k-th data bit sequence is a sequence of data bits obtained by serially cascading the remaining data bit sequences included in the CBGs corresponding to the DMRS port groups, and sequentially extracting the first Q data bits in a second predetermined order; wherein, 2 ⁇ k ⁇ m, the remaining data bit sequence included in the CBG corresponding to the DMRS port group includes: the data bits remaining after the k-1 data bits are extracted from the data bit sequence included in the CBG corresponding to the DMRS port group.
  • a sixth aspect of the present application provides a network device comprising at least one processing element (or chip) for performing the method of the above first aspect.
  • a seventh aspect of the present application provides a program for performing the method of the above first aspect when executed by a processor.
  • An eighth aspect of the present application provides a program product, such as a computer readable storage medium, comprising the program of the seventh aspect.
  • a ninth aspect of the present application provides a computer readable storage medium having stored therein instructions that, when run on a computer, cause the computer to perform the method of the first aspect described above.
  • a tenth aspect of the present application provides a terminal device, including: a memory, a processor, and a transceiver:
  • the memory is used to store program instructions
  • the processor is configured to invoke the program instruction in the memory to perform the following steps: acquiring configuration information of the DMRS port group of the demodulation reference signal; the number of the DMRS port group is greater than or equal to 2;
  • the transceiver is configured to perform data transmission with the network device; wherein the data corresponds to the transport block, the transport block is divided into at least one coded block group CBG, each of the at least one CBG corresponds to one DMRS port group, and is mapped to one DMRS port.
  • the transport layer corresponding to the group.
  • the transport block is divided into at least one CBG, including:
  • the transport block plus the redundancy check bit is divided into N code blocks CB;
  • B represents the total number of bits after the transport block plus the redundant check digit, and
  • c represents the preset value. Representing the upward rounding operation;
  • the N CBs are divided into CBGs corresponding to the DMRS port group.
  • the number of CBs included in each CBG is equal to the value calculated by the following formula: or
  • B 0 represents the number of data bits transmitted by the DMRS port group corresponding to the CBG
  • B s represents the sum of the number of data bits transmitted by each DMRS port group. Represents a rounding down operation, Represents rounding up operations.
  • the transport block is divided into at least one CBG, including:
  • the transport block is divided into sub-transport blocks corresponding to each DMRS port group;
  • Each sub-transport block is separately encoded to obtain a CBG corresponding to the DMRS port group.
  • the transceiver is further configured to: receive a notification message sent by the network device, where the notification message carries configuration information of the DMRS port group; correspondingly, the processor is specifically configured to: obtain the configuration of the DMRS port group according to the notification message. information.
  • each of the at least one CBG is mapped to a transport layer corresponding to the one DMRS port group, including:
  • the data bit sequence included in the CBG corresponding to each DMRS port group is sequentially extracted by a preset number of data bits according to the first preset sequence, and serially concatenated to obtain a concatenated data bit sequence;
  • the concatenated data bit sequence is mapped to each transport layer according to a preset mapping strategy.
  • the data bit sequence included in the CBG corresponding to each DMRS port group is sequentially extracted by a preset number of data bits according to the first preset sequence, and serially concatenated to obtain a concatenated data bit sequence, including:
  • the first data bit sequence to the mth data bit sequence are sequentially serially cascaded to obtain a concatenated data bit sequence; m The total number of times the data bit sequence included in the CBG corresponding to each DMRS port group is extracted, and m is a positive integer greater than or equal to 2;
  • the first data bit sequence is a data bit sequence in which the data bit sequence included in the CBG corresponding to each DMRS port group is sequentially extracted in the second predetermined order, and the data bit sequence obtained by serial concatenation is performed.
  • Qi represents the number of extracted data bits in the data bit sequence included in the CBG corresponding to the i-th DMRS port group, 1 ⁇ i ⁇ R and i is a positive integer, R is the number of each DMRS port group and R is greater than or a positive integer equal to 2, L i is the number of transmission layers corresponding to the i-th DMRS port group, and q l is the modulation order corresponding to the l-th transmission layer;
  • the k-th data bit sequence is a sequence of data bits obtained by serially cascading the remaining data bit sequences included in the CBGs corresponding to the DMRS port groups, and sequentially extracting the first Q data bits in a second predetermined order; wherein, 2 ⁇ k ⁇ m, the remaining data bit sequence included in the CBG corresponding to the DMRS port group includes: the data bits remaining after the k-1 data bits are extracted from the data bit sequence included in the CBG corresponding to the DMRS port group.
  • An eleventh aspect of the present application provides a terminal device comprising at least one processing element (or chip) for performing the method of the above second aspect.
  • a twelfth aspect of the present application provides a program for performing the method of the above second aspect when executed by a processor.
  • a thirteenth aspect of the present application provides a program product, such as a computer readable storage medium, comprising the program of the twelfth aspect.
  • a fourteenth aspect of the present application provides a computer readable storage medium having stored therein instructions that, when run on a computer, cause the computer to perform the method of the second aspect above.
  • a fifteenth aspect of the present application provides a data transmission method, including:
  • the network device determines the number of transmission layers
  • the network device performs data transmission with the terminal device; wherein the data corresponds to the transport block, and the transport block is mapped to the corresponding transport layer according to the number of transport layers.
  • data transmission is performed by the network device and the terminal device, wherein the data corresponds to the transport block, and the transport block is mapped to the corresponding transport layer according to the number of transport layers.
  • the flexible resource mapping can be implemented according to the difference of the number of transmission layers, so that it can be applied to different service requirements, different transmission scenarios or different channel conditions.
  • the transport block is mapped to the corresponding transport layer according to the number of transport layers, including:
  • the transport block is mapped to the corresponding transport layer
  • the transport block is divided into 2 coded block groups CBG, and 2 CBGs are mapped to different transport layers, respectively.
  • the method also includes:
  • the network device determines that the transport block is divided when the number of transport layers is equal to 3 or 4, according to the channel quality information corresponding to different DMRS ports being greater than a preset threshold.
  • the method also includes:
  • the network device sends a packet configuration message to the terminal device, where the packet configuration message is used to indicate that the transport block is divided when the number of transport layers is equal to 3 or 4.
  • a sixteenth aspect of the present application provides a data transmission method, including:
  • the terminal device acquires the number of transmission layers
  • the terminal device performs data transmission with the network device; wherein the data corresponds to the transport block, and the transport block is mapped to the corresponding transport layer according to the number of transport layers.
  • data transmission is performed by the terminal device and the network device, wherein the data corresponds to the transport block, and the transport block is mapped to the corresponding transport layer according to the number of transport layers. It can be seen that flexible resource mapping can be implemented according to the number of transmission layers, so that it can be applied to different service requirements, different transmission scenarios or different channel conditions.
  • the transport block is mapped to the corresponding transport layer according to the number of transport layers, including:
  • the transport block is mapped to the corresponding transport layer
  • the transport block is divided into 2 coded block groups CBG, and the 2 CBGs are mapped to different transport layers, respectively.
  • the method also includes:
  • the terminal device receives a packet configuration message sent by the network device.
  • the embodiment of the present application provides a network device, including:
  • a transmission module configured to perform data transmission with the terminal device; wherein the data corresponds to the transport block, and the transport block is mapped to the corresponding transport layer according to the number of transport layers.
  • the transport block is mapped to the corresponding transport layer according to the number of transport layers, including:
  • the transport block is mapped to the corresponding transport layer
  • the transport block is divided into 2 coded block groups CBG, and 2 CBGs are mapped to different transport layers, respectively.
  • the network device also includes:
  • a determining module configured to divide the transport block when the number of transport layers is equal to 3 or 4, according to the channel quality information corresponding to different DMRS ports being greater than a preset threshold.
  • the network device also includes:
  • a sending module configured to send a packet configuration message to the terminal device, where the packet configuration message is used to indicate that the transport block is divided when the number of transport layers is equal to 3 or 4.
  • the embodiment of the present application provides a terminal device, including:
  • An acquisition module configured to obtain a number of transmission layers
  • a transmission module configured to perform data transmission with the network device; wherein the data corresponds to the transport block, and the transport block is mapped to the corresponding transport layer according to the number of transport layers.
  • the transport block is mapped to the corresponding transport layer according to the number of transport layers, including:
  • the transport block is mapped to the corresponding transport layer
  • the transport block is divided into 2 coded block groups CBG, and the 2 CBGs are mapped to different transport layers, respectively.
  • the terminal device further includes:
  • the receiving module is configured to receive a packet configuration message sent by the network device.
  • a nineteenth aspect of the present application provides a network device, including: a memory, a processor, and a transceiver;
  • the memory is used to store program instructions
  • the processor is configured to call a program instruction in the memory to perform the following steps: determining the number of transmission layers;
  • the transceiver is configured to perform data transmission with the terminal device; wherein the data corresponds to the transport block, and the transport block is mapped to the corresponding transport layer according to the number of transport layers.
  • the transport block is mapped to the corresponding transport layer according to the number of transport layers, including:
  • the transport block is mapped to the corresponding transport layer
  • the transport block is divided into 2 coded block groups CBG, and 2 CBGs are mapped to different transport layers, respectively.
  • the processor is further configured to: when the channel quality information corresponding to different DMRS ports is greater than a preset threshold, determine to divide the transport block when the number of transmission layers is equal to 3 or 4.
  • the transceiver is further configured to: send a packet configuration message to the terminal device, where the packet configuration message is used to indicate that the transport block is divided when the number of transport layers is equal to 3 or 4.
  • a twentieth aspect of the present application provides a network device comprising at least one processing element (or chip) for performing the method of the fifteenth aspect above.
  • a twenty-first aspect of the present application provides a program for performing the method of the fifteenth aspect above when executed by a processor.
  • a twenty-second aspect of the present application provides a program product, such as a computer readable storage medium, comprising the program of the twenty first aspect.
  • a twenty-third aspect of the present application provides a computer readable storage medium having instructions stored in a computer readable storage medium to cause the computer to perform the method of the fifteenth aspect.
  • a twenty-fourth aspect of the present application provides a terminal device, including: a memory, a processor, and a transceiver:
  • the memory is used to store program instructions
  • the processor is configured to call a program instruction in the memory to perform the following steps: obtaining a number of transmission layers;
  • the transceiver is configured to perform data transmission with the network device; wherein the data corresponds to the transport block, and the transport block is mapped to the corresponding transport layer according to the number of transport layers.
  • the transport block is mapped to the corresponding transport layer according to the number of transport layers, including:
  • the transport block is mapped to the corresponding transport layer
  • the transport block is divided into 2 coded block groups CBG, and the 2 CBGs are mapped to different transport layers, respectively.
  • the transceiver is further configured to: receive a packet configuration message sent by the network device.
  • a twenty-fifth aspect of the present application provides a terminal device comprising at least one processing element (or chip) for performing the method of the sixteenth aspect above.
  • a twenty-sixth aspect of the present application provides a program for performing the method of the sixteenth aspect above when executed by a processor.
  • a twenty-seventh aspect of the present application provides a program product, such as a computer readable storage medium, comprising the program of the twenty sixth aspect.
  • a twenty-eighth aspect of the present application provides a computer readable storage medium having stored therein instructions that, when run on a computer, cause the computer to perform the method of the sixteenth aspect.
  • Figure 1 is a block diagram of a communication system
  • FIG. 2A is a schematic flowchart of Embodiment 1 of a data transmission method according to the present application.
  • 2B is a schematic diagram of dividing a CB in an embodiment of the present application.
  • Embodiment 3 is a schematic flowchart of Embodiment 2 of a data transmission method according to the present application.
  • Embodiment 4 is a schematic flowchart of Embodiment 3 of a data transmission method according to the present application.
  • FIG. 5 is a schematic flowchart of Embodiment 4 of a data transmission method according to the present application.
  • Embodiment 5 is a schematic flowchart of Embodiment 5 of a data transmission method according to the present application.
  • FIG. 7 is a schematic flowchart of Embodiment 6 of a data transmission method according to the present application.
  • Embodiment 8 is a schematic structural diagram of Embodiment 1 of a network device according to the present application.
  • Embodiment 9 is a schematic structural diagram of Embodiment 2 of a network device according to the present application.
  • FIG. 10 is a schematic structural diagram of Embodiment 1 of a terminal device according to the present application.
  • FIG. 11 is a schematic structural diagram of Embodiment 2 of a terminal device according to the present application.
  • FIG. 1 is a block diagram of a communication system.
  • the communication system includes: a network device 01 and a terminal device 02.
  • the communication system may be a Long Term Evolution (LTE) communication system or a fifth-generation (5G) mobile communication system, such as a new generation (New Radio, NR) radio access technology; This is not a limitation.
  • LTE Long Term Evolution
  • 5G fifth-generation
  • NR new Radio
  • the network device designed by the present application may include, but is not limited to, a base station, a Transmission Reception Point (TRP).
  • the base station also known as a radio access network (RAN) device, is a device that connects the terminal to the wireless network, and may be a Global System of Mobile communication (GSM) or a code division.
  • GSM Global System of Mobile communication
  • a Base Transceiver Station (BTS) in a Code Division Multiple Access (CDMA) system may be a base station (NodeB, NB) in Wideband Code Division Multiple Access (WCDMA), or may be An evolved base station (Evolutional Node B, eNB or eNodeB) in a Long Term Evolution (LTE), or a relay station or an access point, or a base station in a future 5G network, is not limited herein.
  • Terminal device may be a wireless terminal or a wired terminal, the wireless terminal may be a device that provides voice and/or other service data connectivity to the user, a handheld device with wireless connectivity, or other processing device connected to the wireless modem. .
  • the wireless terminal can communicate with one or more core networks via a Radio Access Network (RAN), which can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal.
  • RAN Radio Access Network
  • it may be a portable, pocket, handheld, computer built-in or in-vehicle mobile device that exchanges language and/or data with a wireless access network.
  • RAN Radio Access Network
  • the wireless terminal may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, and a remote terminal.
  • the access terminal, the user terminal (User Terminal), the user agent (User Agent), and the user device (User Device or User Equipment) are not limited herein.
  • the DMRS port in the embodiment of the present application refers to an antenna port for transmitting a DMRS, and the antenna port is also used to send a physical data channel or a physical control channel, and the DMRS signal sent through the antenna port can be used to send through the antenna port.
  • the physical data channel or the physical control channel performs channel estimation and performs signal demodulation.
  • the DMRS port, the antenna port, and the like are not distinguished, and the same meaning is used.
  • the Quasi-Co-Location (QCL) requirements are met between the DMRS ports in a DMRS port group in the embodiment of the present application, and the QCL requirements are not met between the two DMRS ports belonging to different DMRS port groups.
  • the large-scale characteristics corresponding to the channel experienced by one antenna port can be obtained by the large-scale characteristics of the channel experienced by another antenna port, the two antenna ports are said to satisfy the QCL requirement.
  • the large-scale features include, but are not limited to, delay spread, average delay, average power, Doppler spread, Doppler shift, and spatial information (such as angle of arrival, receive antenna correlation, etc.).
  • the network device in the embodiment of the present application may be configured as a coherent MIMO transmission (that is, the DMRS ports corresponding to different antenna panels in the network device belong to the same DMRS port group, or the DMRS port corresponding to the network device and other network devices.
  • the DMRS ports corresponding to different antenna panels in the network device belong to different DMRS port groups, or the network device corresponds to other network devices.
  • the DMRS ports belong to different DMRS port groups). Two scenarios will be described separately in the following embodiment sections.
  • the process of mapping the CBG or the transport block involved in the embodiment of the present application to the corresponding transport layer further includes, but is not limited to, a process of performing scrambling, modulation, and layer mapping on the CBG or the transport block.
  • scrambling, modulation layer mapping and implementation process can be found in the Third Generation Partnership Project (3 rd Generation Partnership Project, 3GPP ) Long Term Evolution (Long Term Evolution, LTE) specification (Technical Specification, TS) 36.211 version
  • the scrambling process of the channel, the modulation process of the downlink physical shared channel in Section 6.3.2, and the layer mapping process in the space division multiplexing transmission of the downlink physical shared channel in 6.3.3.2 are not described here. It can be understood that The process of mapping the CBG or the data to the corresponding transport
  • the network device and/or the terminal device in the embodiment of the present application are pre-configured with a mapping relationship between the DMRS port group and the corresponding transport layer, or the network device dynamically configures the network device and/or the terminal device by using a high-level message or a physical layer message.
  • the mapping relationship between the DMRS port group and the corresponding transport layer so that the DMRS port group can be informed that the data corresponding to the DMRS port group is mapped to which transport layers.
  • one antenna port sends a data stream corresponding to the transport layer, so that the mapping between the transport layer and the antenna port is considered to be one-to-one.
  • the transport layer and the antenna port may not be distinguished, and the mapping relationship may be considered to be equivalent.
  • FIG. 2A is a schematic flowchart of Embodiment 1 of a data transmission method according to the present application.
  • the embodiments of the present application are described for non-coherent MIMO transmission (ie, multiple DMRS antenna port groups).
  • the method in this embodiment may include:
  • Step S201 The network device determines a DMRS port group.
  • the network device determines the DMRS port group used by the network device and the terminal device for data transmission.
  • the number of the DMRS port group is greater than or equal to 2.
  • the network device performs user scheduling and resource allocation according to channel state information fed back by the terminal device or an uplink sounding reference signal sent by the terminal device, and combines network load and interference state, and determines the network device and The terminal device performs a DMRS port group used for data transmission.
  • the network device may determine the DMRS port group by using other methods, which is not limited in this embodiment.
  • Step S202 The terminal device acquires configuration information of the DMRS port group of the demodulation reference signal.
  • the manner in which the terminal device acquires the configuration information of the DMRS port group may include, but is not limited to, the following manner: the terminal device receives the notification message sent by the network device (optionally, the notification message carries the The configuration information of the DMRS port group and the antenna port information included in the DMRS port group, and the terminal device acquires configuration information of the preset DMRS port group.
  • the notification message may include, but is not limited to, any one or a combination of the following: Downlink Control Information (DCI), Radio Resource Control (RRC) message, and media access control element. (Media Access Control Control Element, MAC CE).
  • Step S203 The network device performs data transmission with the terminal device.
  • the data corresponds to a transport block
  • the transport block is divided into at least one coded block group CBG
  • each of the at least one CBG corresponds to one of the DMRS port groups (ie, different DMRS port groups correspond to different CBGs, one
  • the CBG does not correspond to a plurality of the DMRS port groups) and is mapped to a transport layer corresponding to the one DMRS port group.
  • the network device sends data to the terminal device, where the data corresponds to a transport block, such as a transport block (TB).
  • the transport block is divided into at least one coded block group CBG by the network device, and each CBG of the at least one CBG corresponds to one of the DMRS port groups (ie, different DMRS port groups correspond to different CBGs, or one CBG)
  • Each of the at least one CBG is mapped to a transport layer corresponding to the one DMRS port group.
  • the network device determines that the DMRS port group includes: DMRS port group 1 and DMRS port group 2 (ie, the number of DMRS port groups is equal to 2), and the transport block is divided into two CBGs (including: DMRS port group 1 corresponding to CBG1 and CBG2) corresponding to DMRS port group 2, and CBG1 are mapped to the transport layer corresponding to DMRS port group 1, and CBG2 is mapped to the transport layer corresponding to DMRS port group 2.
  • the transport block is divided into two CBGs (including: DMRS port group 1 corresponding to CBG1 and CBG2) corresponding to DMRS port group 2
  • CBG1 are mapped to the transport layer corresponding to DMRS port group 1
  • CBG2 is mapped to the transport layer corresponding to DMRS port group 2.
  • the transport block may also be divided into an integer multiple of CBGs of the number of DMRS port groups (eg, the transport block is divided into CBG1-CBG4), and correspondingly, each DMRS port group corresponds to two CBGs (eg, DMRS port group 1 corresponds to CBG1 and CBG2, and DMRS port group 2 corresponds to CBG3 and CBG4). It can be seen that the data streams sent by different DMRS port groups are guaranteed to belong to different CBGs, so that the terminal device can separately decode the CBG corresponding to each DMRS port group.
  • the terminal device receives the data sent by the network device, and according to the learned DMRS port group (eg, according to the configuration information of the DMRS port group in step S202, the DMRS port group is learned)
  • the resulting data is decoded.
  • the terminal device can learn the division manner of the transport block (such as dividing several CBGs) and the resource mapping manner (such as mapping to which transport layers) according to the DMRS port group, so that the terminal device can The CBG corresponding to each of the DMRS port groups is separately decoded.
  • the terminal device sends data to the network device, where the data corresponds to a transport block (for example, TB).
  • the transport block is divided into at least one coded block group CBG by the terminal device, and each CBG of the at least one CBG corresponds to one of the DMRS port groups (ie, different DMRS port groups correspond to different CBGs, or one CBG)
  • Each of the at least one CBG is mapped to a transport layer corresponding to the one DMRS port group. It can be seen that the data streams sent by different DMRS port groups are guaranteed to belong to different CBGs, so that the network device can separately decode the CBG corresponding to each DMRS port group.
  • the network device receives the data sent by the terminal device, and decodes the received data according to the determined DMRS antenna port group. For example, the network device can learn the division manner of the transport block (such as dividing several CBGs) and the resource mapping manner (such as mapping to which transport layers) according to the DMRS port group, so that the network device can The CBG corresponding to each of the DMRS port groups is separately decoded.
  • the division manner of the transport block such as dividing several CBGs
  • the resource mapping manner such as mapping to which transport layers
  • the implementation manner that the transport block is divided into at least one CBG may include, but is not limited to, the following two types:
  • the transport block is divided into N code blocks CB after adding a redundancy check bit; wherein B represents the total number of bits after the transmission block is added with a redundancy check bit, and c represents a preset value (ie, the maximum number of bits included in the CB, such as 6144, 8196, etc.), Representing an up-rounding operation; the N CBs are divided into CBGs corresponding to the DMRS port group (ie, each DMRS port group corresponds to at least one CBG, and different DMRS port groups correspond to different CBGs, and one CBG does not correspond to more DMRS port groups).
  • the specific manner of cascading the N CBs in the CBG process corresponding to the DMRS port group is not limited in this embodiment of the present application.
  • the number of CBs included in each of the CBGs is equal to the value calculated by the following formula: or
  • the sum of the number of CBs included in all CBGs is equal to the total number of CBs in the system; wherein B 0 represents the number of data bits sent by the DMRS port group corresponding to the CBG, and B s represents each of the DMRS port groups.
  • the number of data bits sent by each of the DMRS ports is equal to a modulation and coding scheme (MCS) of the corresponding transmission layer of the DMRS port, and the number of transmission layers corresponding to the DMRS port is allocated to the DMRS port.
  • MCS modulation and coding scheme
  • REs physical time-frequency resource units
  • the CBG1 corresponding to the DMRS port group 1 is included.
  • the number of CBs is equal to:
  • the number of CBs included in CBG2 corresponding to DMRS port group 2 is equal to:
  • the value of CBG1 corresponding to DMRS port group 1 is equal to:
  • the number of CBs included in CBG2 corresponding to DMRS port group 2 is equal to: Value.
  • the process of dividing the transport block into N code blocks CB may refer to code block segmentation and adding redundancy in section 5.1.2 in 3GPP LTE TS 36.212 version 13.1.0 (v13.1.0). The process is not described here. It can be understood that the process of dividing the transport block into CB can also be other existing methods or future methods. The parameters used in the partitioning process may be different from the existing schemes. There is no limitation in the embodiment of the invention.
  • FIG. 2B is a schematic diagram of dividing a CB in an embodiment of the present application.
  • a transport block such as a TB
  • MAC Media Access Control
  • CRC Cyclic Redundancy Check
  • the second implementation manner is as follows: the transport block is divided into sub-transport blocks corresponding to each of the DMRS port groups (that is, each DMRS port group corresponds to one sub-transport block, and different DMRS port groups correspond to different sub-transport blocks, One sub-transport block does not correspond to a plurality of DMRS port groups); each of the sub-transport blocks is separately encoded to obtain a CBG corresponding to the DMRS port group.
  • the process of separately encoding each of the sub-transport blocks may be referred to the general encoding process in Chapter 5.1 of 3GPP LTE TS 36.212 Release 13.1.0 (v13.1.0), and details are not described herein. It is to be understood that the process of encoding the sub-transport block may be in other existing manners or in a future manner. The parameters used in the encoding process may be different from the existing ones, and are not limited in the embodiment of the present invention.
  • the size of the step number is not limited to the order of execution, and the order of execution of each step is determined by its function and internal logic, which is not limited in the embodiment of the present application.
  • the network device performs data transmission with the terminal device, where the data corresponds to a transport block, the transport block is divided into at least one coded block group CBG, and each of the at least one CBG corresponds to one
  • the DMRS port group is mapped to a transport layer corresponding to the one DMRS port group. It can be seen that the data streams sent by different DMRS port groups are differently belonged to different CBGs, so that the receiving end can separately decode the CBG corresponding to each DMRS port group (that is, the data streams mapped on different transport layers can be independently translated). Code) to support interference cancellation receivers for interference cancellation.
  • the receiving end can separately decode the CBG corresponding to each DMRS port group, the receiving end can perform ACK/NACK feedback in units of CBG. For example, when the receiving end correctly decodes a CBG, it feeds back an ACK; otherwise, it feeds back NACK.
  • the transmitting end needs to retransmit the CBG that is decoded by the receiving end until the receiving end correctly receives the CBG or The maximum number of retransmissions has been reached.
  • the transport layer mapped by the default retransmission may be the same as the transport layer mapped at the initial transmission; of course, the transport layer indicated by the exchange identifier may be different from the transport layer mapped at the initial transmission.
  • CBG1 maps to the first two layers when CBG1 is mapped to the first two layers
  • CBG1 maps to the last two layers when retransmission is performed according to the exchange identifier
  • CBG2 maps to the first two layers.
  • the transport layer mapped when the CBG1 is retransmitted is the same as the transport layer mapped when the CBG1 is initially transmitted, or the transport layer mapped when the CBG1 is retransmitted by the exchange identifier is mapped to the original CBG2.
  • the transport layer is the same.
  • each DMRS port group corresponds to at least one CBG.
  • at least one CBG corresponding to each DMRS port group may correspond to different symbol groups in the time domain, and/or may correspond to different children in the frequency domain.
  • the CBG can be mapped in the time domain and/or the frequency domain in addition to the mapping in the airspace (ie, the transport layer or the antenna port).
  • the layer mapping is performed in sequence (the resource mapping manner described in the first embodiment of the present application) ), frequency domain mapping, and time domain mapping. Specific frequency domain mapping and/or time domain mapping can be found in the existing mapping mode. For example, time domain mapping is performed according to a symbol group (including at least one symbol), and/or frequency domain mapping is performed according to a subband group (including at least one subband).
  • FIG. 3 is a schematic flowchart of Embodiment 2 of a data transmission method according to the present application.
  • the embodiments of the present application are described for downlink non-coherent MIMO transmission (ie, multiple DMRS antenna port groups).
  • the method in this embodiment may include:
  • Step S301 The network device determines a demodulation reference signal DMRS port group.
  • the network device determines the DMRS port group used to send data to the terminal device.
  • the number of the DMRS port group is greater than or equal to 2.
  • Step S302 The network device sends a notification message and data to the terminal device.
  • the notification message carries configuration information of each DMRS port group, so that the terminal device can learn the DMRS port group according to the notification message.
  • the data corresponds to a transport block, where the transport block is divided into at least one coded block group CBG by a network device, each CBG of the at least one CBG corresponds to one of the DMRS port groups, and the at least one CBG Each of the CBGs is mapped to a transport layer corresponding to the one DMRS port group.
  • the resource mapping manner can be referred to the foregoing Embodiment 1 or the following Embodiment 7 of the present application, and details are not described herein again.
  • Step S303 The terminal device receives the notification message and the data.
  • the terminal device determines the DMRS port group according to the notification message, and according to the DMRS port group, can learn the division manner of the transport block (such as dividing several CBGs) and resource mapping manner (such as mapping). To which transport layer), so that the terminal device can separately decode the CBG corresponding to each of the DMRS port groups (ie, can independently decode the data streams mapped on different transport layers), and can support interference. Eliminate the receiver for interference cancellation.
  • FIG. 4 is a schematic flowchart of Embodiment 3 of a data transmission method according to the present application.
  • the embodiments of the present application are described for uplink non-coherent MIMO transmission (ie, multiple DMRS antenna port groups).
  • the method in this embodiment may include:
  • Step S401 The terminal device acquires configuration information of the DMRS port group of the demodulation reference signal.
  • the terminal device learns the DMRS port group used by the terminal device to send data to the network device according to the configuration information of the DMRS port group.
  • the number of the DMRS port group is greater than or equal to 2.
  • the configuration information of the DMRS port group may be notified to the terminal device by the network device, or preset in the terminal device (corresponding, the DMRS port is also pre-configured in the network device) Group configuration information).
  • Step S402 The terminal device sends data to the network device.
  • the data corresponds to a transport block, where the transport block is divided into at least one coded block group CBG by the terminal device, each CBG of the at least one CBG corresponds to one of the DMRS port groups, and the at least one CBG Each of the CBGs is mapped to a transport layer corresponding to the one DMRS port group.
  • the resource mapping manner can be referred to the foregoing Embodiment 1 or the following Embodiment 7 of the present application, and details are not described herein again.
  • Step S403 The network device receives the data.
  • the network device is configured according to the DMRS port group used by the terminal device to send data to the network device, and according to the DMRS port group, can learn the division manner of the transport block (such as dividing several CBGs) and resources.
  • the mapping mode eg, to which transport layers are mapped, so that the network device can separately decode the CBG corresponding to each of the DMRS port groups.
  • FIG. 5 is a schematic flowchart of Embodiment 4 of a data transmission method according to the present application.
  • the embodiments of the present application are described for coherent MIMO transmission (ie, one DMRS antenna port group).
  • the method in this embodiment may include:
  • Step S501 The network device determines the number of transmission layers.
  • the network device determines the number of transport layers corresponding to each transport block (such as TB).
  • the network device determines, according to the scheduling result information (for example, the measured downlink reference signal, or the uplink sounding reference signal, etc.) sent by the terminal device, that the network device performs data transmission with the terminal device.
  • the total number of transport layers used. Generally, when the total number of transmission layers is greater than or equal to 1 and less than or equal to 4, transmission of one transport block is supported; when the total number of transmission layers is greater than 4 and less than or equal to 8, transmission of two transport blocks is supported. It can be seen that under the premise of determining the total number of transmission layers, the network device can know the number of transmission layers corresponding to each transport block. Of course, the network device may determine the number of the transport layer in other manners, which is not limited in this embodiment of the present application.
  • Step S502 The terminal device acquires the number of the transport layers.
  • the manner in which the terminal device acquires the number of transmission layers may include, but is not limited to, the following manner: the terminal device receives a notification message sent by the network device (optionally, the notification message carries the number of transmission layers) Configuration information), the terminal device acquires configuration information of a preset number of transmission layers.
  • the notification message may include, but is not limited to, any one of the following: Downlink Control Information (DCI), Radio Resource Control (RRC) message, and MAC CE.
  • the notification message may further carry antenna port information included in the DMRS port group, so that the terminal device can learn the antenna port used for data transmission.
  • the terminal device may also obtain preset antenna port information included in the DMRS port group.
  • the terminal device may obtain the information about the antenna port in other manners, which is not limited in this embodiment.
  • Step S503 The network device performs data transmission with the terminal device.
  • the network device sends data to the terminal device, where the data corresponds to a transport block (for example, TB), and the transport block is mapped according to the number of transport layers to a corresponding one.
  • Transport layer for example, TB
  • the implementable manner in which the transport block is mapped to the corresponding transport layer according to the number of transport layers may include, but is not limited to, the following two types:
  • the first implementation manner if the number of transmission layers is greater than or equal to 1 and less than or equal to 4, the transport block is mapped to a corresponding transport layer. For example, when the number of transmission layers is equal to 1, the transport block is mapped to a corresponding one of the transport layers; when the number of transport layers is equal to 2, the transport block is mapped to the corresponding two transport layers; When equal to 3, the transport blocks are sequentially mapped to the corresponding 3 transport layers; when the number of transport layers is equal to 4, the transport blocks are sequentially mapped to the corresponding 4 transport layers.
  • the relationship between the transport layer and the antenna port for transmitting the data stream in the transport layer is indicated by network device dynamic signaling or a predefined rule, so that the terminal device after learning the antenna port for sending The transport block is mapped to a transport layer corresponding to the antenna port, and the data stream in the transport layer is transmitted through the antenna port.
  • the second implementation is: (A) if the number of transmission layers is equal to 1 or 2, the transport block is mapped to the corresponding transport layer. For example, when the number of transmission layers is equal to 1, the transport block is mapped to a corresponding one of the transport layers; when the number of transport layers is equal to two, the transport block is mapped to the corresponding two transport layers. (B) if the number of transmission layers is equal to 3 or 4, the transport block is divided into 2 coded block groups CBG, and the 2 CBGs are respectively mapped to different transport layers; or, the transmission The block is mapped to a corresponding transport layer (such as 3 transport layers or 4 transport layers).
  • the transport block is mapped to a corresponding transport layer according to a preset rule or a rule indicated by a dynamic configuration message. For example, when the number of transmission layers is equal to 3, the transport block is divided into CBG1 and CBG2, CBG1 is mapped to any one of the 3 layers, and CBG2 is mapped to the transport layer of the 3 layer except the CBG1 map. Two other transport layers than the other; or, CBG1 is mapped to any two of the three layers, and CBG2 is mapped to other transport layers of the three layers except the transport layer of the CBG1 mapping.
  • the transport block is divided into CBG1 and CBG2, CBG1 is mapped to any two of the 4 layers (for example, the first two layers), and CBG2 is mapped to the 4 layers.
  • Two other transport layers eg, the last two layers
  • the CBG1 mapped transport layer Two other transport layers (eg, the last two layers) other than the CBG1 mapped transport layer.
  • the method further includes: determining, by the network device, that the channel quality information corresponding to different DMRS ports is greater than a preset threshold, determining that the number of the transport layers is equal to 3 or Dividing the transport block at 4 o'clock, that is, when the channel quality information corresponding to different DMRS ports is less than or equal to the preset threshold, the network device determines that the transport block is not divided when the number of transport layers is equal to 3 or 4. .
  • the network device may further determine, according to service requirements, whether to divide the transport block when the number of transport layers is equal to 3 or 4.
  • the network device may determine that the transport block does not need to be divided when the number of transport layers is equal to 3 or 4; for delay-non-sensitive services, the network device may determine that The transport block is divided when the number of transport layers is equal to 3 or 4.
  • the delay-sensitive service refers to a service that requires ACK/NACK feedback in one subframe, such as an Ultra Low Latency and Reliability Connection (ULLRC) service; Sensitive services such as Mobile BroadBand (MBB) services.
  • ULLRC Ultra Low Latency and Reliability Connection
  • MBB Mobile BroadBand
  • the method further includes: sending, by the network device, a packet configuration message to the terminal device, where the network device sends a packet configuration message to the terminal device, where the packet configuration message is used to indicate:
  • the transport block is divided when the number of transport layers is equal to 3 or 4.
  • the packet configuration message may be carried in any one of the following information: DCI, RRC message, MAC CE.
  • the packet configuration message may also be carried in other information, which is not limited in the embodiment of the present application.
  • the terminal device receives the data sent by the network device, and when the packet configuration message is not received, the terminal device directly obtains the number of the transport layers that are known (as obtained according to step S502). Decoding the received data, for example, the terminal device can learn the resource mapping manner of the data according to the number of transmission layers (eg, to which transport layers are mapped); When the packet configuration message is described, the terminal device can learn the resource mapping manner when the number of transmission layers is equal to 1 or 2 according to the number of transmission layers, and can determine the resource when the number of transmission layers is equal to 3 or 4 according to the packet configuration message. Divide (such as dividing several CBGs) and mapping methods (such as which transport layer to map to).
  • the terminal device sends the data to the network device, where the data corresponds to a transport block (eg, TB), and the transport block is mapped to a corresponding one according to the number of transport layers Transport layer.
  • a transport block eg, TB
  • the implementable manner in which the transport block is mapped to the corresponding transport layer according to the number of transport layers may include, but is not limited to, the following two types:
  • the first implementation manner if the number of transmission layers is greater than or equal to 1 and less than or equal to 4, the transport block is mapped to a corresponding transport layer. For example, when the number of transmission layers is equal to 1, the transport block is mapped to a corresponding one of the transport layers; when the number of transport layers is equal to 2, the transport block is mapped to the corresponding two transport layers; When equal to 3, the transport blocks are sequentially mapped to the corresponding 3 transport layers; when the number of transport layers is equal to 4, the transport blocks are sequentially mapped to the corresponding 4 transport layers.
  • the second implementation is: (A) if the number of transmission layers is equal to 1 or 2, the transport block is mapped to the corresponding transport layer. (B) if the number of transmission layers is equal to 3 or 4, and a packet configuration message is used to indicate division of the transport block, the transport block is divided into 2 coded block groups CBG, and the 2 CBGs are respectively Mapping to different of the transport layers; or, if the packet configuration message is not obtained, the transport block is mapped to a corresponding transport layer. For example, if the terminal device acquires the packet configuration message, the transport block is divided into 2 CBGs; if the packet configuration message is not obtained, the transport block is directly mapped to a corresponding transport layer. .
  • the terminal device may obtain the packet configuration message by receiving the packet configuration message sent by the network device, or may obtain the packet configuration by acquiring a pre-configured packet configuration message.
  • the message is; of course, it can be obtained by other means, which is not limited in the embodiment of the present application.
  • the network device receives the data sent by the terminal device, and when the packet configuration message is not obtained, directly, according to the number of the transport layer (as determined according to step S501), the received data is received.
  • Decoding for example, the network device can learn the resource mapping manner of the data according to the number of transmission layers (such as which transport layer is mapped); when the packet configuration message is obtained, the network The device can learn the resource mapping manner when the number of transmission layers is equal to 1 or 2 according to the number of transmission layers, and can determine the resource division (such as dividing several CBGs) when the number of transmission layers is equal to 3 or 4 according to the packet configuration message.
  • the mapping method (such as which transport layer is mapped to).
  • the size of the step number is not limited to the order of execution, and the order of execution of each step is determined by its function and internal logic, which is not limited in the embodiment of the present application.
  • the network device performs data transmission with the terminal device, where the data corresponds to a transport block, and the transport block is mapped to a corresponding transport layer according to the number of transport layers. It can be seen that the flexible resource mapping can be implemented according to the difference of the number of transmission layers, so that it can be applied to different service requirements, different transmission scenarios or different channel conditions.
  • the mapping mode at the time of initial transmission is introduced, and the following section describes the mapping mode at the time of retransmission.
  • the transport layer mapped by the default retransmission is the same as the transport layer mapped at the initial transmission; when the transmission layer corresponding to a single transport block is equal to 3 or 4
  • the transport layer mapped by the default retransmission may be the same as the transport layer mapped at the initial transmission.
  • the transport layer indicated by the exchange identifier may be different from the transport layer mapped at the initial transmission.
  • CBG1 maps to the first two layers when CBG1 is mapped to the first two layers
  • CBG1 maps to the last two layers when retransmission is performed according to the exchange identifier
  • CBG2 maps to the first two layers.
  • the transport layer mapped when the CBG1 is retransmitted is the same as the transport layer mapped when the CBG1 is initially transmitted, or the transport layer mapped when the CBG1 is retransmitted by the exchange identifier is mapped to the original CBG2.
  • the transport layer is the same.
  • the manner in which the transport block is divided into one or more CBGs may be referred to in the foregoing Embodiment 1 of the present application, and the related content of “the transport block is divided into at least one CBG” is not used herein. Let me repeat.
  • the CBG only divides the transport block by different transport layers when the MIMO transmission is performed, that is, the partition of the air domain. If the division in the time domain and/or the frequency domain is combined, the embodiment of the present application is also applicable to a CBG in which the transport block is divided in the spatial domain and combined with the time domain symbol and/or the frequency domain subband, and of course, may be applicable to other In this case, the embodiment of the present application does not limit this. Specifically, how to perform time domain and/or frequency domain partitioning on the transport block and how to perform resource mapping in the time domain and/or the frequency domain is not limited in this embodiment.
  • the mapping of the transport block in the airspace is mainly described. Further, the mapping may be performed in the time domain and/or the frequency domain. For example, the layer mapping is performed in sequence (described in the fourth embodiment of the present application).
  • the resource mapping method, the frequency domain mapping, and the time domain mapping, and the specific frequency domain mapping and/or time domain mapping can be referred to the existing mapping manner. For example, time domain mapping is performed according to a symbol group (including at least one symbol), and/or frequency domain mapping is performed according to a subband group (including at least one subband).
  • FIG. 6 is a schematic flowchart of Embodiment 5 of a data transmission method according to the present application.
  • the embodiment of the present application describes a downlink coherent MIMO transmission (ie, a DMRS antenna port group).
  • the method in this embodiment may include:
  • Step S601 The network device determines the number of transmission layers.
  • the network device determines the number of transport layers corresponding to each transport block (such as TB).
  • Step S602 The network device sends a notification message and data to the terminal device.
  • the notification message carries the configuration information of the number of transmission layers, so that the terminal device can learn the number of the transmission layers according to the notification message.
  • the notification message may further carry antenna port information included in the DMRS port group, so that the terminal device can learn the antenna port used for data transmission.
  • the data corresponds to a transport block
  • the transport block is mapped to a corresponding transport layer according to the number of transport layers.
  • Step S603 The terminal device receives the notification message and the data.
  • the terminal device determines, according to the notification message, the number of the transmission layer and the antenna port included in the DMRS port group, when the packet configuration message sent by the network device is not received, the terminal device
  • the resource mapping manner of the transport block (eg, to which transport layers are mapped) can be known directly according to the number of transport layers.
  • the terminal device can learn the resource mapping manner when the number of transmission layers is equal to 1 or 2 according to the number of transmission layers, and can learn the transport layer according to the packet configuration message.
  • the method of resource partitioning and mapping when the number is equal to 3 or 4. It can be seen that the flexible resource mapping can be implemented according to the difference of the number of transmission layers, so that it can be applied to different service requirements, different transmission scenarios or different channel conditions.
  • FIG. 7 is a schematic flowchart of Embodiment 6 of a data transmission method according to the present application.
  • the embodiment of the present application describes uplink coherent MIMO transmission (ie, one DMRS antenna port group).
  • the method in this embodiment may include:
  • Step S701 The terminal device acquires configuration information of the number of transmission layers.
  • the terminal device learns the number of transmission layers corresponding to each transport block (such as TB) according to the configuration information of the number of transport layers.
  • the configuration information of the number of transmission layers may be notified to the terminal device by the network device, or preset in the terminal device (corresponding, the transmission layer is also pre-configured in the network device) Number of configuration information).
  • the terminal device may further acquire antenna port information included in the DMRS port group, so as to be able to learn an antenna port used for transmitting data to the network device.
  • the terminal device may further acquire antenna port information included in the DMRS port group, so as to be able to learn an antenna port used for transmitting data to the network device.
  • Step S702 The terminal device sends data to the network device.
  • the data corresponds to a transport block
  • the transport block is mapped to a corresponding transport layer according to the number of transport layers.
  • Step S703 the network device receives the data.
  • the network device receives the data sent by the terminal device, and when the packet configuration message is not obtained, the resource mapping manner of the data can be directly learned according to the number of the transmission layers (eg, where to map) Several transport layers).
  • the network device can learn the resource mapping manner when the number of transmission layers is equal to 1 or 2 according to the number of transmission layers, and can determine that the number of transmission layers is equal to 3 or according to the packet configuration message. 4 o'clock resource partitioning (such as dividing several CBG) and mapping mode (such as which transport layer is mapped to). It can be seen that the flexible resource mapping can be implemented according to the difference of the number of transmission layers, so that it can be applied to different service requirements, different transmission scenarios or different channel conditions.
  • each of the at least one CBG is mapped to a transport layer corresponding to the one DMRS port group, including:
  • the data bit sequence included in the CBG corresponding to each DMRS port group is sequentially extracted by a preset number of data bits according to a first preset sequence, and serially concatenated to obtain a concatenated data bit sequence;
  • the concatenated data bit sequence is mapped to each of the transport layers according to a preset mapping policy.
  • the data bit sequence included in the CBG corresponding to each DMRS port group is sequentially extracted by a preset number of data bits according to the first preset sequence, and serial concatenation to obtain the concatenated data bit sequence may be at least adopted as follows One of several implementable ways.
  • the number of DMRS port groups is not limited thereto
  • the data bit sequence is sequentially extracted by a preset number of data bits in a preset order.
  • the number of data bits extracted in the data bit sequence included in the CBG corresponding to different DMRS port groups may be the same or different, that is, The preset number of the different DMRS port groups may be the same or different. It is assumed that the data bit sequence included in the CBG corresponding to each DMRS port group is extracted once and is completely extracted, that is, the first achievable manner.
  • the preset sequence is the first preset sequence; further, the extracted data bits are serially serialized to obtain the concatenated data bit sequence.
  • the preset sequence may be an order in which the DMRS port group numbers are from small to large, or a sequence in which the DMRS port group numbers are in descending order, or other preset order, or a sequence of network configurations, where the network configuration The order may be indicated by higher layer signaling or physical layer signaling.
  • each DMRS port group The data bit sequence included in the corresponding CBG is in a preset order (referred to as a second preset sequence in the following embodiments, for example, the DMRS port group number is in the order of small to large, or the DMRS port group number is from large to small.
  • the sequence, or other preset order, or the order of the network configuration sequentially extracts a preset number of data bits, and optionally, the number of bits extracted in the data bit sequence included in the CBG corresponding to different DMRS port groups may be the same.
  • the preset number corresponding to different DMRS port groups may be the same or different.
  • Qi the data bit sequence included in the CBG corresponding to each DMRS port group.
  • the remaining data bit sequence included in the CBG corresponding to each DMRS port group includes: D
  • the data bits remaining in the data bit sequence included in the CBG corresponding to the MRS port group are the first predetermined number of data bits after being extracted for the first time, and the first preset number of data bits are sequentially extracted according to the second preset sequence.
  • the extracted data bits are serially cascaded in the order of successive extraction to obtain the cascade.
  • the data bit sequence that is, the sequence of extracting data bits in the second preset order multiple times in the second implementable manner is the first preset sequence.
  • the data bit sequence included in the CBG corresponding to each of the DMRS port groups is sequentially extracted by a preset number of data bits according to the first preset sequence, and serially concatenated to obtain a concatenated data bit sequence, and may also pass other
  • the implementation manner is not limited in the embodiment of the present application.
  • the data bit sequence included in the CBG corresponding to each DMRS port group is sequentially extracted by a preset number of data bits according to a first preset sequence, and serial concatenation is performed to obtain a cascade.
  • the second implementation of the data bit sequence is described in detail.
  • the data bit sequence included in the CBG corresponding to each of the DMRS port groups is sequentially extracted by a preset number of data bits according to a first preset sequence, and serially concatenated to obtain a concatenated data bit sequence, including:
  • the first data bit sequence to the mth data bit sequence are sequentially serially cascaded to obtain the concatenated data.
  • a bit sequence m is a total number of times the data bit sequence included in the CBG corresponding to each of the DMRS port groups is extracted, and m is a positive integer greater than or equal to 2;
  • the first data bit sequence is that the data bit sequence included in the CBG corresponding to each DMRS port group is sequentially extracted in the second preset order, and the data bits obtained by serial concatenation are performed.
  • a sequence where Qi represents the number of extracted data bits in the data bit sequence included in the CBG corresponding to the i-th DMRS port group, 1 ⁇ i ⁇ R and i is a positive integer, and R is a DMRS port group of each The number and R is a positive integer greater than or equal to 2, L i is the number of transmission layers corresponding to the i-th DMRS port group, and q l is a modulation order corresponding to the lth transmission layer;
  • the k-th data bit sequence is a data bit sequence obtained by serially cascading the remaining data bit sequences included in the CBG corresponding to each of the DMRS port groups by sequentially extracting the first Qi data bits according to the second preset sequence.
  • the remaining data bit sequence included in the CBG corresponding to the DMRS port group includes: after extracting k-1 data bits in the data bit sequence included in the CBG corresponding to the DMRS port group The remaining data bits.
  • the data bit sequence included in the CBG corresponding to each DMRS port group is in a second preset order (for example, the DMRS port group number is in the order of small to large, or the DMRS port group number is from the large To the small order, or other preset order, or the order of the network configuration, sequentially extract the first Qi data bits, and serially concatenate to obtain the first data bit sequence; for example, assume that the second preset sequence is the DMRS port group sequence number.
  • Q1 represents the number of extracted data bits in the data bit sequence included in the CBG corresponding to the DMRS port group 1
  • Q2 represents the extracted data bit sequence included in the CBG corresponding to the DMRS port group 2.
  • L 1 is the number of transmission layers corresponding to the DMRS port group 1
  • q l is the modulation order corresponding to the first transmission layer in the number of transmission layers corresponding to the DMRS port group 1.
  • the modulation order corresponding to the transport layer is 2; and the modulation mode corresponding to the transport layer is 16
  • QPSK Quadrature Phase Shift Keying
  • the modulation order corresponding to the transmission layer is 4; when the modulation mode corresponding to the transmission layer is 64QAM modulation, the modulation order corresponding to the transmission layer is 6;
  • the modulation layer corresponds to a modulation order of 8.
  • the modulation scheme corresponding to each transport layer is the same.
  • the remaining data bit sequence included in the CBG corresponding to each DMRS port group is as described above.
  • the second predetermined sequence sequentially extracts the first Q data bits, and performs serial concatenation to obtain a second data bit sequence, wherein the remaining data bit sequence included in the CBG corresponding to each of the DMRS port groups includes: the DMRS port The data bits remaining after the data bit is extracted 1 time in the data bit sequence included in the corresponding CBG.
  • the remaining data bit sequence included in the CBG corresponding to each DMRS port group is followed.
  • the second predetermined sequence sequentially extracts the first Q data bits, and performs serial concatenation to obtain a third data bit sequence, wherein the remaining data bit sequence included in the CBG corresponding to each of the DMRS port groups includes: the DMRS The data bits remaining after the data bits are extracted 2 times in the data bit sequence included in the CBG corresponding to the port group; and so on, until the remaining data bit sequence included in the CBG corresponding to each of the DMRS port groups (including The data bits remaining after the m-1 data bits are extracted from the data bit sequence included in the CBG corresponding to the DMRS port group are sequentially extracted by the first Qi data bits according to the second preset sequence, and are serialized.
  • the data bit sequence included in the CBG corresponding to each of the DMRS port groups is all extracted, and the first data bit sequence is sent to the mth data.
  • Bit sequence is subjected to serial concatenated sequentially concatenated to obtain the sequence of data bits.
  • the data bit sequence included in the CBG corresponding to each of the DMRS port groups is sequentially extracted by a preset number of data bits according to a first preset sequence, and the cascading data bits obtained by serial concatenation are performed.
  • the sth data bit in the sequence corresponds to the f s *Qs+a s data bits of the qth s CBG, so as to ensure that the data bits included in the CBG corresponding to each DMRS port group are mapped in order, that is, respectively The transmission layer corresponding to each DMRS port, thereby implementing interference cancellation receiver interference cancellation between different transmission layers.
  • the data bit sequence included in the CBG corresponding to each of the DMRS port groups is sequentially extracted by a preset number of data bits according to the first preset sequence, and the serial level is performed.
  • the cascading data bit sequence is obtained, the cascading data bit sequence is mapped to each of the transport layers according to a preset mapping policy (such as an interlace mapping, etc.) to ensure each DMRS.
  • the CBGs corresponding to the port groups are respectively mapped to the corresponding transport layers.
  • the data bits included in the CBG corresponding to the DMRS port group 1 are mapped to the transport layer corresponding to the DMRS port group 1 (optionally, one or more Layer), the data bits included in the CBG corresponding to the DMRS port 2 are mapped to the transport layer corresponding to the DMRS port group 2, and the like.
  • the data bit sequence included in the CBG corresponding to each of the DMRS port groups in the foregoing second implementation manner is sequentially extracted by a preset number of data bits according to a first preset sequence, and is serialized.
  • the concatenated data bit sequence is mapped to each of the transport layers according to a preset mapping policy (such as a sequence mapping, etc.) to ensure that the CBGs corresponding to each DMRS port group are respectively mapped to respective The corresponding transport layer.
  • a preset mapping policy such as a sequence mapping, etc.
  • the data bit sequence included in the CBG corresponding to each of the foregoing DMRS port groups in other implementation manners is sequentially extracted by a preset number of bits in a first preset order, and serially concatenated to obtain concatenated data bits.
  • the cascading data bit sequence is mapped to each of the transport layers according to a corresponding preset mapping policy, so as to ensure that the CBGs corresponding to each DMRS port group are respectively mapped to the corresponding transport layer.
  • a corresponding preset mapping policy there is no limit to this.
  • mapping of the concatenated data bit sequence to each of the transport layers according to a preset mapping policy may include the following process, for example, the concatenated data bit sequence is subjected to time domain interleaving, frequency domain interleaving, and time multiplexing. At least one of frequency interleaving, scrambling, modulation, and layer mapping. Of course, other processing procedures may also be included, which are not limited in this embodiment of the present application.
  • mapping of each of the at least one CBG to the transport layer corresponding to the one DMRS port group may be implemented in other implementation manners, which is not limited in the embodiment of the present application.
  • the mapping between the DMRS port group and the corresponding transport layer is pre-set in the network device and/or the terminal device in the embodiment of the present application, or the DMRS port is learned through dynamic messages or physical layer messages.
  • mapping relationship between the group with the corresponding transport layer therefore, the above-described embodiments, L i (i.e., the number of layers corresponding to each of the DMRS port group) may be determined according to a mapping relationship between each group and the corresponding DMRS port transport layer.
  • the L i may also be indicated by the DCI.
  • the number of transmission layers corresponding to each DMRS port group may be indicated by other methods, which is not limited in this embodiment.
  • the number of transmission layers corresponding to each DMRS port group indicated by the DCI may include at least the following indication manners: 1) indicating the total number of transmission layers by DCI, and all DMRS port groups except one of the DMRS port groups. The number of transmission layers corresponding to each of the remaining DMRS port groups. For example, if a total of two DMRS port groups are assumed, the total number of transmission layers and the transmission layer corresponding to any one of the two DMRS port groups are indicated by DCI.
  • the antenna port in the DCI indicates a bit in the domain, or is indicated by adding a certain bit in the antenna port indication field in the DCI.
  • the lengths of the data bit sequences included in the CBGs corresponding to the DMRS port groups are determined to be the same.
  • the CBG corresponding to the partial DMRS port group is filled with a placeholder, where a placeholder-filled DMRS port group is required (referred to as a j-th DMRS port group in the following embodiment, where The corresponding CBG of 1 ⁇ j ⁇ R) satisfies the following feature: the number of times C0 required for the data bit sequence included in the CBG corresponding to the j-th DMRS port group is less than the CBG corresponding to the p-th DMRS port group The data bit sequence included is completely extracted by the required number of times Cmax, wherein the number of times Cmax required for the data bit sequence included in the CBG corresponding to the pth DMRS port group is completely extracted for each of the DMRS port groups.
  • the maximum number of times the data bit sequence included in the CBG is completely extracted 1 ⁇ p ⁇ R.
  • the number of placeholders that the CBG corresponding to the jth DMRS port group needs to fill is Qj*(Cmax-C0).
  • the execution subject of the operations such as “extracting” and “mapping” in the embodiment of the present application is a terminal device;
  • the execution subject of the operations such as “extraction” and “mapping” involved in the embodiment of the present application is a network device.
  • the network device performs data transmission with the terminal device, where the data corresponds to a transport block, the transport block is divided into at least one coded block group CBG, and each of the at least one CBG corresponds to one
  • the DMRS port group the data bit sequence included in the CBG corresponding to each of the DMRS port groups is sequentially extracted by a preset number of data bits according to a first preset sequence, and serially concatenated to obtain a concatenated data bit sequence.
  • the cascading data bit sequence is mapped to each of the transport layers according to a preset mapping policy, so as to ensure that the CBGs corresponding to each DMRS port group are respectively mapped to the corresponding transport layers.
  • the data streams sent by different DMRS port groups are differently belonged to different CBGs, so that the receiving end can separately decode the CBG corresponding to each DMRS port group (that is, the data streams mapped on different transport layers can be independently translated). Code) to support interference cancellation receivers for interference cancellation.
  • the process of mapping the CBGs mapped to the corresponding transport layer on the airspace is mainly described, and there is no limitation on the CBG mapping in the time domain and the frequency domain. And requirements.
  • the embodiments of the present application may also be applicable to a CBG in which a transport block is combined with a time domain symbol and/or a frequency domain subband in a spatial domain, and may be applied to, for example, a partition in the time domain and/or the frequency domain. In other cases, this embodiment of the present application does not limit this.
  • the CBG mapped to the same time domain symbol and/or the frequency domain subband may be recorded according to the foregoing embodiment of the present application.
  • the mapping of CBG to the corresponding transport layer ie, the spatial domain mapping
  • the process of mapping the CBGs to the corresponding transport layer in the foregoing Embodiments 4 to 6 of the present application may also be performed by using the mapping process in the seventh embodiment of the present application (corresponding to replacing the DMRS port group with each CBG).
  • the transport layer group, the transport layer group refers to a set of transport layers to which a CBG is mapped.
  • mapping process refer to the corresponding content in the foregoing seventh embodiment of the present application, and details are not described herein again.
  • the seventh embodiment of the data transmission method of the present application may be performed separately from any of the foregoing embodiments 1 to 6, and is not dependent on other embodiments.
  • the achievable manner of the CBG mapping to the corresponding transport layer described in the seventh embodiment of the data transmission method of the present application is also applicable to other data transmission processes, which is not limited in the embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of Embodiment 1 of a network device according to the present application.
  • the network device 80 provided in this embodiment includes: a determining module 801 and a transmitting module 802.
  • the determining module 801 is configured to determine a demodulation reference signal DMRS port group; the number of the DMRS port group is greater than or equal to 2;
  • the transmission module 802 is configured to perform data transmission with the terminal device, where the data corresponds to a transport block, the transport block is divided into at least one coded block group CBG, and each of the at least one CBG corresponds to one of the DMRS ports. Grouped and mapped to a transport layer corresponding to the one DMRS port group.
  • the transport block is divided into at least one CBG, including:
  • the transport block is divided into N code blocks CB; wherein B represents the total number of bits after the transmission block plus the redundancy check bit, and c represents a preset value. Representing the upward rounding operation;
  • the N CBs are divided into CBGs corresponding to the DMRS port group.
  • the number of CBs included in each of the CBGs is equal to the value calculated by the following formula: or
  • B 0 represents the number of data bits transmitted by the DMRS port group corresponding to the CBG
  • B s represents the sum of the number of data bits sent by each of the DMRS port groups. Represents a rounding down operation, Represents rounding up operations.
  • the transport block is divided into at least one CBG, including:
  • the transport block is divided into sub-transport blocks corresponding to each of the DMRS port groups;
  • Each of the sub-transport blocks is separately encoded to obtain a CBG corresponding to the DMRS port group.
  • the network device further includes:
  • the notification module is configured to send a notification message to the terminal device, where the notification message carries configuration information of the DMRS port group.
  • each of the at least one CBG is mapped to a transport layer corresponding to the one DMRS port group, including:
  • the data bit sequence included in the CBG corresponding to each DMRS port group is sequentially extracted by a preset number of data bits according to a first preset sequence, and serially concatenated to obtain a concatenated data bit sequence;
  • the concatenated data bit sequence is mapped to each of the transport layers according to a preset mapping policy.
  • the data bit sequence included in the CBG corresponding to each of the DMRS port groups is sequentially extracted by a preset number of data bits according to a first preset sequence, and serially concatenated to obtain a concatenated data bit sequence, including :
  • the first data bit sequence to the mth data bit sequence are sequentially serially cascaded to obtain the concatenated data.
  • a bit sequence m is a total number of times the data bit sequence included in the CBG corresponding to each of the DMRS port groups is extracted, and m is a positive integer greater than or equal to 2;
  • the first data bit sequence is that the data bit sequence included in the CBG corresponding to each DMRS port group is sequentially extracted in the second preset order, and the data bits obtained by serial concatenation are performed.
  • Qi represents the number of extracted data bits in the data bit sequence included in the CBG corresponding to the i-th DMRS port group
  • 1 ⁇ i ⁇ R and i is a positive integer
  • R is a group of each of the DMRS port groups
  • the number and R is a positive integer greater than or equal to 2
  • L i is the number of transmission layers corresponding to the i-th DMRS port group
  • q l is a modulation order corresponding to the lth transmission layer
  • the k-th data bit sequence is a data bit sequence obtained by serially cascading the remaining data bit sequences included in the CBG corresponding to each of the DMRS port groups by sequentially extracting the first Qi data bits according to the second preset sequence.
  • the remaining data bit sequence included in the CBG corresponding to the DMRS port group includes: after extracting k-1 data bits in the data bit sequence included in the CBG corresponding to the DMRS port group The remaining data bits.
  • the network device of this embodiment may be used to perform the technical solutions of any of the foregoing data transmission methods in Embodiments 1 to 3 and Embodiment 7 of the present application, and the implementation principles and technical effects thereof are similar, and details are not described herein again.
  • FIG. 9 is a schematic structural diagram of Embodiment 2 of a network device according to the present application.
  • the network device 90 provided in this embodiment includes: a memory 901, a processor 902, a transceiver 903, and at least one communication bus 904.
  • the communication bus 904 is used to implement a communication connection between components.
  • the memory 901 may include a high speed RAM memory, and may also include a non-volatile memory NVM, such as at least one disk memory, in which various programs may be stored for performing various processing functions and implementing the above-described embodiments of the present application. Method steps.
  • the transceiver 903 can be a corresponding output/output interface having a communication function.
  • the processor 902 is configured to invoke a program instruction in the memory 901 to perform the following steps: determining a demodulation reference signal DMRS port group; the number of the DMRS port groups is greater than or equal to 2.
  • the transceiver 903 is configured to perform data transmission with the terminal device, where the data corresponds to a transport block, the transport block is divided into at least one coded block group CBG, and each of the at least one CBG corresponds to one of the DMRS port groups And mapping to a transport layer corresponding to the one DMRS port group.
  • the transport block is divided into at least one CBG, including:
  • the transport block is divided into N code blocks CB; wherein B represents the total number of bits after the transmission block plus the redundancy check bit, and c represents a preset value. Representing the upward rounding operation;
  • the N CBs are divided into CBGs corresponding to the DMRS port group.
  • the number of CBs included in each of the CBGs is equal to the value calculated by the following formula: or
  • B 0 represents the number of data bits transmitted by the DMRS port group corresponding to the CBG
  • B s represents the sum of the number of data bits sent by each of the DMRS port groups. Represents a rounding down operation, Represents rounding up operations.
  • the transport block is divided into at least one CBG, including:
  • the transport block is divided into sub-transport blocks corresponding to each of the DMRS port groups;
  • Each of the sub-transport blocks is separately encoded to obtain a CBG corresponding to the DMRS port group.
  • the transceiver 903 is further configured to: send a notification message to the terminal device, where the notification message carries configuration information of the DMRS port group.
  • each of the at least one CBG is mapped to a transport layer corresponding to the one DMRS port group, including:
  • the data bit sequence included in the CBG corresponding to each DMRS port group is sequentially extracted by a preset number of data bits according to a first preset sequence, and serially concatenated to obtain a concatenated data bit sequence;
  • the concatenated data bit sequence is mapped to each of the transport layers according to a preset mapping policy.
  • the data bit sequence included in the CBG corresponding to each of the DMRS port groups is sequentially extracted by a preset number of data bits according to a first preset sequence, and serially concatenated to obtain a concatenated data bit sequence, including :
  • the first data bit sequence to the mth data bit sequence are sequentially serially cascaded to obtain the concatenated data.
  • a bit sequence m is a total number of times the data bit sequence included in the CBG corresponding to each of the DMRS port groups is extracted, and m is a positive integer greater than or equal to 2;
  • the first data bit sequence is that the data bit sequence included in the CBG corresponding to each DMRS port group is sequentially extracted in the second preset order, and the data bits obtained by serial concatenation are performed.
  • Qi represents the number of extracted data bits in the data bit sequence included in the CBG corresponding to the i-th DMRS port group
  • 1 ⁇ i ⁇ R and i is a positive integer
  • R is a group of each of the DMRS port groups
  • the number and R is a positive integer greater than or equal to 2
  • q l is the l th modulation order corresponding to the transport layer;
  • the k-th data bit sequence is a data bit sequence obtained by serially cascading the remaining data bit sequences included in the CBG corresponding to each of the DMRS port groups by sequentially extracting the first Qi data bits according to the second preset sequence.
  • the remaining data bit sequence included in the CBG corresponding to the DMRS port group includes: after extracting k-1 data bits in the data bit sequence included in the CBG corresponding to the DMRS port group The remaining data bits.
  • the network device of this embodiment may be used to perform the technical solutions of any of the foregoing data transmission methods in Embodiments 1 to 3 and Embodiment 7 of the present application, and the implementation principles and technical effects thereof are similar, and details are not described herein again.
  • FIG. 10 is a schematic structural diagram of Embodiment 1 of a terminal device according to the present application.
  • the terminal device 100 provided in this embodiment includes: an obtaining module 1001 and a transmitting module 1002.
  • the obtaining module 1001 is configured to acquire configuration information of a DMRS port group of the demodulation reference signal; the number of the DMRS port group is greater than or equal to 2;
  • the transmission module 1002 is configured to perform data transmission with the network device, where the data corresponds to a transport block, the transport block is divided into at least one coded block group CBG, and each of the at least one CBG corresponds to one of the DMRS ports. Grouped and mapped to a transport layer corresponding to the one DMRS port group.
  • the transport block is divided into at least one CBG, including:
  • the transport block is divided into N code blocks CB; wherein B represents the total number of bits after the transmission block plus the redundancy check bit, and c represents a preset value. Representing the upward rounding operation;
  • the N CBs are divided into CBGs corresponding to the DMRS port group.
  • the number of CBs included in each of the CBGs is equal to the value calculated by the following formula: or
  • B 0 represents the number of data bits transmitted by the DMRS port group corresponding to the CBG
  • B s represents the sum of the number of data bits sent by each of the DMRS port groups. Represents a rounding down operation, Represents rounding up operations.
  • the transport block is divided into at least one CBG, including:
  • the transport block is divided into sub-transport blocks corresponding to each of the DMRS port groups;
  • Each of the sub-transport blocks is separately encoded to obtain a CBG corresponding to the DMRS port group.
  • the acquiring module is specifically configured to: receive a notification message sent by the network device, where the notification message carries configuration information of the DMRS port group.
  • each of the at least one CBG is mapped to a transport layer corresponding to the one DMRS port group, including:
  • the data bit sequence included in the CBG corresponding to each DMRS port group is sequentially extracted by a preset number of data bits according to a first preset sequence, and serially concatenated to obtain a concatenated data bit sequence;
  • the concatenated data bit sequence is mapped to each of the transport layers according to a preset mapping policy.
  • the data bit sequence included in the CBG corresponding to each of the DMRS port groups is sequentially extracted by a preset number of data bits according to a first preset sequence, and serially concatenated to obtain a concatenated data bit sequence, including :
  • the first data bit sequence to the mth data bit sequence are sequentially serially cascaded to obtain the concatenated data.
  • a bit sequence m is a total number of times the data bit sequence included in the CBG corresponding to each of the DMRS port groups is extracted, and m is a positive integer greater than or equal to 2;
  • the first data bit sequence is that the data bit sequence included in the CBG corresponding to each DMRS port group is sequentially extracted in the second preset order, and the data bits obtained by serial concatenation are performed.
  • Qi represents the number of extracted data bits in the data bit sequence included in the CBG corresponding to the i-th DMRS port group
  • 1 ⁇ i ⁇ R and i is a positive integer
  • R is a group of each of the DMRS port groups
  • the number and R is a positive integer greater than or equal to 2
  • L i is the number of transmission layers corresponding to the i-th DMRS port group
  • q l is a modulation order corresponding to the lth transmission layer
  • the k-th data bit sequence is a data bit sequence obtained by serially cascading the remaining data bit sequences included in the CBG corresponding to each of the DMRS port groups by sequentially extracting the first Qi data bits according to the second preset sequence.
  • the remaining data bit sequence included in the CBG corresponding to the DMRS port group includes: after extracting k-1 data bits in the data bit sequence included in the CBG corresponding to the DMRS port group The remaining data bits.
  • the terminal device of this embodiment may be used to perform the technical solutions of any of the foregoing data transmission methods in Embodiments 1 to 3 and Embodiment 7 of the present application, and the implementation principles and technical effects thereof are similar, and details are not described herein again.
  • FIG. 11 is a schematic structural diagram of Embodiment 2 of a terminal device according to the present application.
  • the terminal device 110 provided in this embodiment includes: a memory 1101, a processor 1102, a transceiver 1103, and at least one communication bus 1104.
  • the communication bus 1104 is used to implement a communication connection between components.
  • the memory 1101 may include a high speed RAM memory, and may also include a non-volatile memory NVM, such as at least one disk memory, in which various programs may be stored for performing various processing functions and implementing the above-described embodiments of the present application. Method steps.
  • the transceiver 1103 can be a corresponding output/output interface having a communication function.
  • the processor 1102 is configured to invoke the program instruction in the memory 1101 to perform the following steps: acquiring configuration information of a demodulation reference signal DMRS port group; the number of the DMRS port groups is greater than or equal to 2.
  • the transceiver 1103 is configured to perform data transmission with a network device, where the data corresponds to a transport block, the transport block is divided into at least one coded block group CBG, and each of the at least one CBG corresponds to one of the DMRS port groups And mapping to a transport layer corresponding to the one DMRS port group.
  • the transport block is divided into at least one CBG, including:
  • the transport block is divided into N code blocks CB; wherein B represents the total number of bits after the transmission block plus the redundancy check bit, and c represents a preset value. Representing the upward rounding operation;
  • the N CBs are divided into CBGs corresponding to the DMRS port group.
  • the number of CBs included in each of the CBGs is equal to the value calculated by the following formula: or
  • B 0 represents the number of data bits transmitted by the DMRS port group corresponding to the CBG
  • B s represents the sum of the number of data bits sent by each of the DMRS port groups. Represents a rounding down operation, Represents rounding up operations.
  • the transport block is divided into at least one CBG, including:
  • the transport block is divided into sub-transport blocks corresponding to each of the DMRS port groups;
  • Each of the sub-transport blocks is separately encoded to obtain a CBG corresponding to the DMRS port group.
  • the transceiver is further configured to: receive a notification message sent by the network device, where the notification message carries configuration information of the DMRS port group; correspondingly, the processor is further configured to: The notification message acquires configuration information of the DMRS port group.
  • each of the at least one CBG is mapped to a transport layer corresponding to the one DMRS port group, including:
  • the data bit sequence included in the CBG corresponding to each DMRS port group is sequentially extracted by a preset number of data bits according to a first preset sequence, and serially concatenated to obtain a concatenated data bit sequence;
  • the concatenated data bit sequence is mapped to each of the transport layers according to a preset mapping policy.
  • the data bit sequence included in the CBG corresponding to each of the DMRS port groups is sequentially extracted by a preset number of data bits according to a first preset sequence, and serially concatenated to obtain a concatenated data bit sequence, including :
  • the first data bit sequence to the mth data bit sequence are sequentially serially cascaded to obtain the concatenated data.
  • a bit sequence m is a total number of times the data bit sequence included in the CBG corresponding to each of the DMRS port groups is extracted, and m is a positive integer greater than or equal to 2;
  • the first data bit sequence is that the data bit sequence included in the CBG corresponding to each DMRS port group is sequentially extracted in the second preset order, and the data bits obtained by serial concatenation are performed.
  • Qi represents the number of extracted data bits in the data bit sequence included in the CBG corresponding to the i-th DMRS port group
  • 1 ⁇ i ⁇ R and i is a positive integer
  • R is a group of each of the DMRS port groups
  • the number and R is a positive integer greater than or equal to 2
  • L i is the number of transmission layers corresponding to the i-th DMRS port group
  • q l is a modulation order corresponding to the lth transmission layer
  • the k-th data bit sequence is a data bit sequence obtained by serially cascading the remaining data bit sequences included in the CBG corresponding to each of the DMRS port groups by sequentially extracting the first Qi data bits according to the second preset sequence.
  • the remaining data bit sequence included in the CBG corresponding to the DMRS port group includes: after extracting k-1 data bits in the data bit sequence included in the CBG corresponding to the DMRS port group The remaining data bits.
  • the terminal device of this embodiment may be used to perform the technical solutions of any of the foregoing data transmission methods in Embodiments 1 to 3 and Embodiment 7 of the present application, and the implementation principles and technical effects thereof are similar, and details are not described herein again.
  • the network device includes: a determining module and a transmitting module.
  • a schematic structural diagram of the network device is shown in FIG. 8.
  • the determining module is configured to determine the number of transmission layers
  • a transmission module configured to perform data transmission with the terminal device, where the data corresponds to a transport block, and the transport block is mapped to a corresponding transport layer according to the number of the transport layers.
  • the transporting block is mapped to the corresponding transport layer according to the number of the transport layer, including:
  • the transport block is mapped to a corresponding transport layer
  • the transport block is divided into 2 coded block groups CBG, and the 2 CBGs are respectively mapped to different transport layers.
  • the network device further includes:
  • a determining module configured to determine, according to the channel quality information corresponding to different DMRS ports, that the difference is greater than a preset threshold, and determine that the transport block is divided when the number of transport layers is equal to 3 or 4.
  • the network device further includes:
  • a sending module configured to send, to the terminal device, a packet configuration message, where the packet configuration message is used to indicate that the transport block is divided when the number of transport layers is equal to 3 or 4.
  • the network device of this embodiment may be used to perform the technical solutions of any of the foregoing embodiments of the data transmission method in the fourth embodiment to the sixth embodiment and the seventh embodiment.
  • the implementation principle and technical effects are similar, and details are not described herein again.
  • the network device includes: a memory, a processor, a transceiver, and at least one communication bus.
  • a schematic structural diagram of the network device is shown in FIG. 9.
  • the communication bus is used to implement a communication connection between components.
  • the memory may include a high speed RAM memory, and may also include a non-volatile memory NVM, such as at least one disk memory, in which various programs may be stored for performing various processing functions and implementing the method steps in the above embodiments of the present application.
  • the transceiver can be a corresponding output/output interface with communication functions.
  • the processor is operative to invoke program instructions in the memory to perform the step of determining the number of transport layers.
  • the transceiver is configured to perform data transmission with the terminal device; wherein the data corresponds to a transport block, and the transport block is mapped to a corresponding transport layer according to the number of the transport layers.
  • the transporting block is mapped to the corresponding transport layer according to the number of the transport layer, including:
  • the transport block is mapped to a corresponding transport layer
  • the transport block is divided into 2 coded block groups CBG, and the 2 CBGs are respectively mapped to different transport layers.
  • the processor is further configured to: when the channel quality information corresponding to different DMRS ports is greater than a preset threshold, determine that the transport block is divided when the number of transport layers is equal to 3 or 4.
  • the transceiver is further configured to: send a packet configuration message to the terminal device, where the packet configuration message is used to indicate that the transport block is divided when the number of transport layers is equal to 3 or 4.
  • the network device of this embodiment may be used to perform the technical solutions of any of the foregoing embodiments of the data transmission method in the fourth embodiment to the sixth embodiment and the seventh embodiment.
  • the implementation principle and technical effects are similar, and details are not described herein again.
  • the terminal device includes: an acquiring module and a transmitting module.
  • a schematic structural diagram of the terminal device is shown in FIG. 10.
  • the obtaining module is configured to obtain the number of transmission layers
  • a transmission module configured to perform data transmission with the network device, where the data corresponds to a transport block, and the transport block is mapped to a corresponding transport layer according to the number of the transport layers.
  • the transporting block is mapped to the corresponding transport layer according to the number of the transport layer, including:
  • the transport block is mapped to a corresponding transport layer
  • the transport block is divided into 2 coded block groups CBG, and the 2 CBGs are respectively mapped to different The transport layer.
  • the terminal device further includes:
  • a receiving module configured to receive the packet configuration message sent by the network device.
  • the terminal device of this embodiment may be used to perform the technical solution of any of the foregoing embodiments of the data transmission method in the fourth embodiment to the sixth embodiment and the seventh embodiment.
  • the implementation principle and technical effects are similar, and details are not described herein again.
  • the terminal device includes: a memory, a processor, a transceiver, and at least one communication bus.
  • a schematic structural diagram of the terminal device is shown in FIG. 11.
  • the communication bus is used to implement a communication connection between components.
  • the memory may include a high speed RAM memory, and may also include a non-volatile memory NVM, such as at least one disk memory, in which various programs may be stored for performing various processing functions and implementing the method steps in the above embodiments of the present application.
  • the transceiver can be a corresponding output/output interface with communication functions.
  • the processor is configured to invoke the program instructions in the memory to perform the following steps: obtaining the number of transport layers.
  • the transceiver is configured to perform data transmission with the network device; wherein the data corresponds to a transport block, and the transport block is mapped to a corresponding transport layer according to the number of the transport layers.
  • the transporting block is mapped to the corresponding transport layer according to the number of the transport layer, including:
  • the transport block is mapped to a corresponding transport layer
  • the transport block is divided into 2 coded block groups CBG, and the 2 CBGs are respectively mapped to different The transport layer.
  • the transceiver is further configured to: receive the packet configuration message sent by the network device.
  • the terminal device of this embodiment may be used to perform the technical solution of any of the foregoing embodiments of the data transmission method in the fourth embodiment to the sixth embodiment and the seventh embodiment.
  • the implementation principle and technical effects are similar, and details are not described herein again.
  • the disclosed apparatus and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the above embodiments it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions.
  • the computer program instructions When the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present invention are generated in whole or in part.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transfer to another website site, computer, server, or data center by wire (eg, coaxial cable, fiber optic, digital subscriber line (DSL), or wireless (eg, infrared, wireless, microwave, etc.).
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media.
  • the usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (such as a solid state disk (SSD)).

Abstract

本申请实施例提供一种数据传输方法、网络设备及终端设备。该方法包括：网络设备确定解调参考信号DMRS端口组；所述DMRS端口组的个数大于等于2；进一步地，所述网络设备与终端设备进行数据传输；其中，所述数据对应传输块，所述传输块被划分为至少一个编码块组CBG，所述至少一个CBG中每一个对应一个所述DMRS端口组，并映射至与所述一个DMRS端口组所对应的传输层。可见，保证了不同DMRS端口组所发送的数据流分属不同的CBG，以便终端设备能够对每个DMRS端口组对应的CBG单独译码，从而能够支持干扰消除接收机进行干扰消除。

Description

数据传输方法、网络设备及终端设备
本申请要求于2017年3月24日提交中国专利局、申请号为201710184023.6、申请名称为“数据传输方法、网络设备及终端设备”的中国专利申请和于2017年8月11日提交中国专利局、申请号为201710685195.1、申请名称为“数据传输方法、网络设备及终端设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术，尤其涉及一种数据传输方法、网络设备及终端设备。
背景技术
多输入多输出(Multiple-Input Multiple-Output，MIMO)技术指在发射端和接收端分别使用多个发射天线和接收天线，使传输信号通过发射端与接收端的多个天线传送和接收，从而改善通信质量。由于MIMO技术能充分利用空间资源，通过多个天线实现多发多收，在不增加频谱资源和天线发射功率的情况下，可以成倍的提高系统信道容量，显示出明显的优势并被视为下一代移动通信的核心技术。
但当前LTE仅支持一个解调参考信号(Demodulation Reference Signal，DMRS)天线端口组(分属同一个DMRS端口组的天线端口之间满足QCL关系)的MIMO传输，对于多个DMRS端口组(分属不同DMRS端口组的天线端口之间不满足QCL关系)的MIMO传输时，由于无法对各组DMRS端口进行联合的预编码处理，因此，分属不同组DMRS端口所发送的不同数据流之间具有严重的层间干扰。为了降低层间干扰，通过在终端设备中设置有干扰消除接收机，但终端设备支持干扰消除接收机的前提要求不同传输层上映射的数据流可以独立的进行译码，否则无法进行干扰消除。因此，如何使得不同传输层上映射的数据流可以独立的进行译码是本申请所要解决的技术问题。
发明内容
本申请实施例提供一种数据传输方法、网络设备及终端设备，实现了可以对不同传输层上映射的数据流进行独立译码。
第一方面，本申请实施例提供一种数据传输方法，包括：
网络设备确定解调参考信号DMRS端口组；DMRS端口组的个数大于等于2；
网络设备与终端设备进行数据传输；其中，数据对应传输块，传输块被划分为至少一个编码块组CBG，至少一个CBG中每一个对应一个DMRS端口组，并映射至与所述一个DMRS端口组所对应的传输层。
通过第一方面提供的数据传输方法，通过网络设备与终端设备进行数据传输；其中，数据对应传输块，传输块被划分为至少一个编码块组CBG，至少一个CBG中每一个对应 一个所述DMRS端口组，并映射至与所述一个DMRS端口组所对应的传输层。可见，保证了不同DMRS端口组所发送的数据流分属不同的CBG，以便终端设备能够对每个DMRS端口组对应的CBG单独译码，即能够对不同传输层上映射的数据流进行独立译码，从而能够支持干扰消除接收机进行干扰消除。
在一个可能的设计中，传输块被划分为至少一个CBG，包括：
传输块加上冗余校验位后被划分为N个码块CB；其中，
Figure PCTCN2018079412-appb-000001
B代表传输块加上冗余校验位后的总比特数，c代表预设数值，
Figure PCTCN2018079412-appb-000002
代表向上取整运算；
N个CB被划分为与DMRS端口组对应的CBG。
在一个可能的设计中，每个CBG所包含的CB个数等于如下公式计算得到的数值：
Figure PCTCN2018079412-appb-000003
或者
Figure PCTCN2018079412-appb-000004
其中，B 0代表CBG对应的DMRS端口组所发送的数据比特数目，B s代表各DMRS端口组所发送的数据比特数目之和，
Figure PCTCN2018079412-appb-000005
代表向下取整运算，
Figure PCTCN2018079412-appb-000006
代表向上取整运算。
在一个可能的设计中，传输块被划分为至少一个CBG，包括：
传输块被划分为每个DMRS端口组对应的子传输块；
每个子传输块被分别编码，得到与DMRS端口组对应的CBG。
在一个可能的设计中，方法还包括：
网络设备向终端设备发送通知消息，通知消息中携带DMRS端口组的配置信息。
在一个可能的设计中，至少一个CBG中每一个被映射至与所述一个DMRS端口组所对应的传输层，包括：
各DMRS端口组对应的CBG所包括的数据比特序列被按照第一预设顺序依次抽取预设数量个数据比特，进行串行级联得到级联数据比特序列；
级联数据比特序列被按照预设映射策略映射到各传输层。
在一个可能的设计中，各DMRS端口组对应的CBG所包括的数据比特序列被按照第一预设顺序依次抽取预设数量个数据比特，进行串行级联得到级联数据比特序列，包括：
在各DMRS端口组对应的CBG所包括的数据比特序列被分别抽取m次完成全部抽取时，第一数据比特序列至第m数据比特序列被依次进行串行级联得到级联数据比特序列；m为各DMRS端口组对应的CBG所包括的数据比特序列被分别抽取的总次数，且m为大于或等于2的正整数；
其中，第一数据比特序列为各DMRS端口组对应的CBG所包括的数据比特序列被按照第二预设顺序依次抽取前Qi个数据比特，进行串行级联所得到的数据比特序列，其中，Qi代表第i个DMRS端口组对应的CBG所包括的数据比特序列中被抽取的数据比特个数，1≤i≤R且i为正整数，R为各DMRS端口组的数量且R为大于或等于2的正整数，
Figure PCTCN2018079412-appb-000007
Figure PCTCN2018079412-appb-000008
L i为第i个DMRS端口组对应的传输层数，q l为第l个传输层对应的调制阶数；
第k数据比特序列为各DMRS端口组对应的CBG所包括的剩余数据比特序列被按照第二预设顺序依次抽取前Qi个数据比特，进行串行级联所得到的数据比特序列；其中，2 ≤k≤m，DMRS端口组对应的CBG所包括的剩余数据比特序列包括：DMRS端口组对应的CBG所包括的数据比特序列中被抽取k-1次数据比特后所剩余的数据比特。
第二方面，本申请实施例提供一种数据传输方法，包括：
终端设备获取解调参考信号DMRS端口组的配置信息；DMRS端口组的个数大于等于2；
终端设备与网络设备进行数据传输；其中，数据对应传输块，传输块被划分为至少一个编码块组CBG，至少一个CBG中每一个对应一个DMRS端口组，并映射至与所述一个DMRS端口组所对应的传输层。
通过第二方面提供的数据传输方法，通过终端设备与网络设备进行数据传输；其中，数据对应传输块，传输块被划分为至少一个编码块组CBG，至少一个CBG中每一个对应一个所述DMRS端口组，并映射至与所述一个DMRS端口组所对应的传输层。可见，保证了不同DMRS端口组所发送的数据流分属不同的CBG，以便网络设备能够对每个DMRS端口组对应的CBG单独译码，即能够对不同传输层上映射的数据流进行独立译码。
在一个可能的设计中，传输块被划分为至少一个CBG，包括：
传输块加上冗余校验位后被划分为N个码块CB；其中，
Figure PCTCN2018079412-appb-000009
B代表传输块加上冗余校验位后的总比特数，c代表预设数值，
Figure PCTCN2018079412-appb-000010
代表向上取整运算；
N个CB被划分为与DMRS端口组对应的CBG。
在一个可能的设计中，每个CBG所包含的CB个数等于如下公式计算得到的数值：
Figure PCTCN2018079412-appb-000011
或者
Figure PCTCN2018079412-appb-000012
其中，B 0代表CBG对应的DMRS端口组所发送的数据比特数目，B s代表各DMRS端口组所发送的数据比特数目之和，
Figure PCTCN2018079412-appb-000013
代表向下取整运算，
Figure PCTCN2018079412-appb-000014
代表向上取整运算。
在一个可能的设计中，传输块被划分为至少一个CBG，包括：
传输块被划分为每个DMRS端口组对应的子传输块；
每个子传输块被分别编码，得到与DMRS端口组对应的CBG。
在一个可能的设计中，终端设备获取解调参考信号DMRS端口组的配置信息，包括：
终端设备接收网络设备发送的通知消息，通知消息中携带DMRS端口组的配置信息。
在一个可能的设计中，至少一个CBG中每一个被映射至与所述一个DMRS端口组所对应的传输层，包括：
各DMRS端口组对应的CBG所包括的数据比特序列被按照第一预设顺序依次抽取预设数量个数据比特，进行串行级联得到级联数据比特序列；
级联数据比特序列被按照预设映射策略映射到各传输层。
在一个可能的设计中，各DMRS端口组对应的CBG所包括的数据比特序列被按照第一预设顺序依次抽取预设数量个数据比特，进行串行级联得到级联数据比特序列，包括：
在各DMRS端口组对应的CBG所包括的数据比特序列被分别抽取m次完成全部抽取时，第一数据比特序列至第m数据比特序列被依次进行串行级联得到级联数据比特序列；m为各DMRS端口组对应的CBG所包括的数据比特序列被分别抽取的总次数，且m为大于或等于2的正整数；
其中，第一数据比特序列为各DMRS端口组对应的CBG所包括的数据比特序列被按 照第二预设顺序依次抽取前Qi个数据比特，进行串行级联所得到的数据比特序列，其中，Qi代表第i个DMRS端口组对应的CBG所包括的数据比特序列中被抽取的数据比特个数，1≤i≤R且i为正整数，R为各DMRS端口组的数量且R为大于或等于2的正整数，
Figure PCTCN2018079412-appb-000015
Figure PCTCN2018079412-appb-000016
L i为第i个DMRS端口组对应的传输层数，q l为第l个传输层对应的调制阶数；
第k数据比特序列为各DMRS端口组对应的CBG所包括的剩余数据比特序列被按照第二预设顺序依次抽取前Qi个数据比特，进行串行级联所得到的数据比特序列；其中，2≤k≤m，DMRS端口组对应的CBG所包括的剩余数据比特序列包括：DMRS端口组对应的CBG所包括的数据比特序列中被抽取k-1次数据比特后所剩余的数据比特。
第三方面，本申请实施例提供一种网络设备，包括：
确定模块，用于确定解调参考信号DMRS端口组；DMRS端口组的个数大于等于2；
传输模块，用于与终端设备进行数据传输；其中，数据对应传输块，传输块被划分为至少一个编码块组CBG，至少一个CBG中每一个对应一个DMRS端口组，并映射至与一个DMRS端口组所对应的传输层。
在一个可能的设计中，传输块被划分为至少一个CBG，包括：
传输块加上冗余校验位后被划分为N个码块CB；其中，
Figure PCTCN2018079412-appb-000017
B代表传输块加上冗余校验位后的总比特数，c代表预设数值，
Figure PCTCN2018079412-appb-000018
代表向上取整运算；
N个CB被划分为与DMRS端口组对应的CBG。
在一个可能的设计中，每个CBG所包含的CB个数等于如下公式计算得到的数值：
Figure PCTCN2018079412-appb-000019
或者
Figure PCTCN2018079412-appb-000020
其中，B 0代表CBG对应的DMRS端口组所发送的数据比特数目，B s代表各DMRS端口组所发送的数据比特数目之和，
Figure PCTCN2018079412-appb-000021
代表向下取整运算，
Figure PCTCN2018079412-appb-000022
代表向上取整运算。
在一个可能的设计中，传输块被划分为至少一个CBG，包括：
传输块被划分为每个DMRS端口组对应的子传输块；
每个子传输块被分别编码，得到与DMRS端口组对应的CBG。
在一个可能的设计中，网络设备还包括：
通知模块，用于向终端设备发送通知消息，通知消息中携带DMRS端口组的配置信息。
在一个可能的设计中，至少一个CBG中每一个被映射至与所述一个DMRS端口组所对应的传输层，包括：
各DMRS端口组对应的CBG所包括的数据比特序列被按照第一预设顺序依次抽取预设数量个数据比特，进行串行级联得到级联数据比特序列；
级联数据比特序列被按照预设映射策略映射到各传输层。
在一个可能的设计中，各DMRS端口组对应的CBG所包括的数据比特序列被按照第一预设顺序依次抽取预设数量个数据比特，进行串行级联得到级联数据比特序列，包括：
在各DMRS端口组对应的CBG所包括的数据比特序列被分别抽取m次完成全部抽取 时，第一数据比特序列至第m数据比特序列被依次进行串行级联得到级联数据比特序列；m为各DMRS端口组对应的CBG所包括的数据比特序列被分别抽取的总次数，且m为大于或等于2的正整数；
其中，第一数据比特序列为各DMRS端口组对应的CBG所包括的数据比特序列被按照第二预设顺序依次抽取前Qi个数据比特，进行串行级联所得到的数据比特序列，其中，Qi代表第i个DMRS端口组对应的CBG所包括的数据比特序列中被抽取的数据比特个数，1≤i≤R且i为正整数，R为各DMRS端口组的数量且R为大于或等于2的正整数，
Figure PCTCN2018079412-appb-000023
Figure PCTCN2018079412-appb-000024
L i为第i个DMRS端口组对应的传输层数，q l为第l个传输层对应的调制阶数；
第k数据比特序列为各DMRS端口组对应的CBG所包括的剩余数据比特序列被按照第二预设顺序依次抽取前Qi个数据比特，进行串行级联所得到的数据比特序列；其中，2≤k≤m，DMRS端口组对应的CBG所包括的剩余数据比特序列包括：DMRS端口组对应的CBG所包括的数据比特序列中被抽取k-1次数据比特后所剩余的数据比特。
上述第三方面的实施方式所提供的网络设备，其有益效果可以参见上述第一方面的各可能的实施方式所带来的有益效果，在此不再赘述。
第四方面，本申请实施例提供一种终端设备，包括：
获取模块，用于获取解调参考信号DMRS端口组的配置信息；DMRS端口组的个数大于等于2；
传输模块，用于与网络设备进行数据传输；其中，数据对应传输块，传输块被划分为至少一个编码块组CBG，至少一个CBG中每一个对应一个DMRS端口组，并映射至与一个DMRS端口组所对应的传输层。
在一个可能的设计中，传输块被划分为至少一个CBG，包括：
传输块加上冗余校验位后被划分为N个码块CB；其中，
Figure PCTCN2018079412-appb-000025
B代表传输块加上冗余校验位后的总比特数，c代表预设数值，
Figure PCTCN2018079412-appb-000026
代表向上取整运算；
N个CB被划分为与DMRS端口组对应的CBG。
在一个可能的设计中，每个CBG所包含的CB个数等于如下公式计算得到的数值：
Figure PCTCN2018079412-appb-000027
或者
Figure PCTCN2018079412-appb-000028
其中，B 0代表CBG对应的DMRS端口组所发送的数据比特数目，B s代表各DMRS端口组所发送的数据比特数目之和，
Figure PCTCN2018079412-appb-000029
代表向下取整运算，
Figure PCTCN2018079412-appb-000030
代表向上取整运算。
在一个可能的设计中，传输块被划分为至少一个CBG，包括：
传输块被划分为每个DMRS端口组对应的子传输块；
每个子传输块被分别编码，得到与DMRS端口组对应的CBG。
在一个可能的设计中，获取模块具体用于：接收网络设备发送的通知消息，通知消息中携带DMRS端口组的配置信息。
在一个可能的设计中，至少一个CBG中每一个被映射至与所述一个DMRS端口组所对应的传输层，包括：
各DMRS端口组对应的CBG所包括的数据比特序列被按照第一预设顺序依次抽取预设数量个数据比特，进行串行级联得到级联数据比特序列；
级联数据比特序列被按照预设映射策略映射到各传输层。
在一个可能的设计中，各DMRS端口组对应的CBG所包括的数据比特序列被按照第一预设顺序依次抽取预设数量个数据比特，进行串行级联得到级联数据比特序列，包括：
在各DMRS端口组对应的CBG所包括的数据比特序列被分别抽取m次完成全部抽取时，第一数据比特序列至第m数据比特序列被依次进行串行级联得到级联数据比特序列；m为各DMRS端口组对应的CBG所包括的数据比特序列被分别抽取的总次数，且m为大于或等于2的正整数；
其中，第一数据比特序列为各DMRS端口组对应的CBG所包括的数据比特序列被按照第二预设顺序依次抽取前Qi个数据比特，进行串行级联所得到的数据比特序列，其中，Qi代表第i个DMRS端口组对应的CBG所包括的数据比特序列中被抽取的数据比特个数，1≤i≤R且i为正整数，R为各DMRS端口组的数量且R为大于或等于2的正整数，
Figure PCTCN2018079412-appb-000031
Figure PCTCN2018079412-appb-000032
L i为第i个DMRS端口组对应的传输层数，q l为第l个传输层对应的调制阶数；
第k数据比特序列为各DMRS端口组对应的CBG所包括的剩余数据比特序列被按照第二预设顺序依次抽取前Qi个数据比特，进行串行级联所得到的数据比特序列；其中，2≤k≤m，DMRS端口组对应的CBG所包括的剩余数据比特序列包括：DMRS端口组对应的CBG所包括的数据比特序列中被抽取k-1次数据比特后所剩余的数据比特。
上述第四方面的实施方式所提供的终端设备，其有益效果可以参见上述第二方面的各可能的实施方式所带来的有益效果，在此不再赘述。
本申请第五方面提供一种网络设备，包括：存储器、处理器和收发器；
其中，存储器用于存储程序指令；
处理器用于调用存储器中的程序指令执行下述步骤：确定解调参考信号DMRS端口组；DMRS端口组的个数大于等于2；
收发器用于用于与终端设备进行数据传输；其中，数据对应传输块，传输块被划分为至少一个编码块组CBG，至少一个CBG中每一个对应一个DMRS端口组，并映射至与一个DMRS端口组所对应的传输层。
在一个可能的设计中，传输块被划分为至少一个CBG，包括：
传输块加上冗余校验位后被划分为N个码块CB；其中，
Figure PCTCN2018079412-appb-000033
B代表传输块加上冗余校验位后的总比特数，c代表预设数值，
Figure PCTCN2018079412-appb-000034
代表向上取整运算；
N个CB被划分为与DMRS端口组对应的CBG。
在一个可能的设计中，每个CBG所包含的CB个数等于如下公式计算得到的数值：
Figure PCTCN2018079412-appb-000035
或者
Figure PCTCN2018079412-appb-000036
其中，B 0代表CBG对应的DMRS端口组所发送的数据比特数目，B s代表各DMRS端口组所发送的数据比特数目之和，
Figure PCTCN2018079412-appb-000037
代表向下取整运算，
Figure PCTCN2018079412-appb-000038
代表向上取整运算。
在一个可能的设计中，传输块被划分为至少一个CBG，包括：
传输块被划分为每个DMRS端口组对应的子传输块；
每个子传输块被分别编码，得到与DMRS端口组对应的CBG。
在一个可能的设计中，收发器还用于：向终端设备发送通知消息，通知消息中携带DMRS端口组的配置信息。
在一个可能的设计中，至少一个CBG中每一个被映射至与所述一个DMRS端口组所对应的传输层，包括：
各DMRS端口组对应的CBG所包括的数据比特序列被按照第一预设顺序依次抽取预设数量个数据比特，进行串行级联得到级联数据比特序列；
级联数据比特序列被按照预设映射策略映射到各传输层。
在一个可能的设计中，各DMRS端口组对应的CBG所包括的数据比特序列被按照第一预设顺序依次抽取预设数量个数据比特，进行串行级联得到级联数据比特序列，包括：
在各DMRS端口组对应的CBG所包括的数据比特序列被分别抽取m次完成全部抽取时，第一数据比特序列至第m数据比特序列被依次进行串行级联得到级联数据比特序列；m为各DMRS端口组对应的CBG所包括的数据比特序列被分别抽取的总次数，且m为大于或等于2的正整数；
其中，第一数据比特序列为各DMRS端口组对应的CBG所包括的数据比特序列被按照第二预设顺序依次抽取前Qi个数据比特，进行串行级联所得到的数据比特序列，其中，Qi代表第i个DMRS端口组对应的CBG所包括的数据比特序列中被抽取的数据比特个数，1≤i≤R且i为正整数，R为各DMRS端口组的数量且R为大于或等于2的正整数，
Figure PCTCN2018079412-appb-000039
Figure PCTCN2018079412-appb-000040
L i为第i个DMRS端口组对应的传输层数，q l为第l个传输层对应的调制阶数；
第k数据比特序列为各DMRS端口组对应的CBG所包括的剩余数据比特序列被按照第二预设顺序依次抽取前Qi个数据比特，进行串行级联所得到的数据比特序列；其中，2≤k≤m，DMRS端口组对应的CBG所包括的剩余数据比特序列包括：DMRS端口组对应的CBG所包括的数据比特序列中被抽取k-1次数据比特后所剩余的数据比特。
上述第五方面的实施方式所提供的网络设备，其有益效果可以参见上述第一方面的各可能的实施方式所带来的有益效果，在此不再赘述。
本申请第六方面提供一种网络设备，包括用于执行以上第一方面的方法的至少一个处理元件(或芯片)。
本申请第七方面提供一种程序，该程序在被处理器执行时用于执行以上第一方面的方法。
本申请第八方面提供一种程序产品，例如计算机可读存储介质，包括第七方面的程序。
本申请第九方面提供一种计算机可读存储介质，计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机执行上述第一方面的方法。
本申请第十方面提供一种终端设备，包括：存储器、处理器和收发器：
其中，存储器用于存储程序指令；
处理器用于调用存储器中的程序指令执行下述步骤：获取解调参考信号DMRS端口组的配置信息；DMRS端口组的个数大于等于2；
收发器用于用于与网络设备进行数据传输；其中，数据对应传输块，传输块被划分为至少一个编码块组CBG，至少一个CBG中每一个对应一个DMRS端口组，并映射至与一个DMRS端口组所对应的传输层。
在一个可能的设计中，传输块被划分为至少一个CBG，包括：
传输块加上冗余校验位后被划分为N个码块CB；其中，
Figure PCTCN2018079412-appb-000041
B代表传输块加上冗余校验位后的总比特数，c代表预设数值，
Figure PCTCN2018079412-appb-000042
代表向上取整运算；
N个CB被划分为与DMRS端口组对应的CBG。
在一个可能的设计中，每个CBG所包含的CB个数等于如下公式计算得到的数值：
Figure PCTCN2018079412-appb-000043
或者
Figure PCTCN2018079412-appb-000044
其中，B 0代表CBG对应的DMRS端口组所发送的数据比特数目，B s代表各DMRS端口组所发送的数据比特数目之和，
Figure PCTCN2018079412-appb-000045
代表向下取整运算，
Figure PCTCN2018079412-appb-000046
代表向上取整运算。
在一个可能的设计中，传输块被划分为至少一个CBG，包括：
传输块被划分为每个DMRS端口组对应的子传输块；
每个子传输块被分别编码，得到与DMRS端口组对应的CBG。
在一个可能的设计中，收发器还用于：接收网络设备发送的通知消息，通知消息中携带DMRS端口组的配置信息；对应的，处理器具体用于：根据通知消息获取DMRS端口组的配置信息。
在一个可能的设计中，至少一个CBG中每一个被映射至与所述一个DMRS端口组所对应的传输层，包括：
各DMRS端口组对应的CBG所包括的数据比特序列被按照第一预设顺序依次抽取预设数量个数据比特，进行串行级联得到级联数据比特序列；
级联数据比特序列被按照预设映射策略映射到各传输层。
在一个可能的设计中，各DMRS端口组对应的CBG所包括的数据比特序列被按照第一预设顺序依次抽取预设数量个数据比特，进行串行级联得到级联数据比特序列，包括：
在各DMRS端口组对应的CBG所包括的数据比特序列被分别抽取m次完成全部抽取时，第一数据比特序列至第m数据比特序列被依次进行串行级联得到级联数据比特序列；m为各DMRS端口组对应的CBG所包括的数据比特序列被分别抽取的总次数，且m为大于或等于2的正整数；
其中，第一数据比特序列为各DMRS端口组对应的CBG所包括的数据比特序列被按照第二预设顺序依次抽取前Qi个数据比特，进行串行级联所得到的数据比特序列，其中，Qi代表第i个DMRS端口组对应的CBG所包括的数据比特序列中被抽取的数据比特个数，1≤i≤R且i为正整数，R为各DMRS端口组的数量且R为大于或等于2的正整数，
Figure PCTCN2018079412-appb-000047
Figure PCTCN2018079412-appb-000048
L i为第i个DMRS端口组对应的传输层数，q l为第l个传输层对应的调制阶数；
第k数据比特序列为各DMRS端口组对应的CBG所包括的剩余数据比特序列被按照第二预设顺序依次抽取前Qi个数据比特，进行串行级联所得到的数据比特序列；其中，2≤k≤m，DMRS端口组对应的CBG所包括的剩余数据比特序列包括：DMRS端口组对应的CBG所包括的数据比特序列中被抽取k-1次数据比特后所剩余的数据比特。
上述第十方面的实施方式所提供的终端设备，其有益效果可以参见上述第二方面的各可能的实施方式所带来的有益效果，在此不再赘述。
本申请第十一方面提供一种终端设备，包括用于执行以上第二方面的方法的至少一个处理元件(或芯片)。
本申请第十二方面提供一种程序，该程序在被处理器执行时用于执行以上第二方面的方法。
本申请第十三方面提供一种程序产品，例如计算机可读存储介质，包括第十二方面的程序。
本申请第十四方面提供一种计算机可读存储介质，计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机执行上述第二方面的方法。
本申请第十五方面提供一种数据传输方法，包括：
网络设备确定传输层数；
网络设备与终端设备进行数据传输；其中，数据对应传输块，传输块被根据传输层数映射于对应的传输层。
通过第十五方面提供的数据传输方法，通过网络设备与终端设备进行数据传输，其中，数据对应传输块，传输块被根据传输层数映射于对应的传输层。可见，可以根据传输层数的不同实现灵活地资源映射，以便于可以适用于不同的业务需求、不同的传输场景或者不同的信道状况等。
在一个可能的设计中，传输块被根据传输层数映射于对应的传输层，包括：
若传输层数等于1或2，传输块被映射到对应的传输层；
若传输层数等于3或4，传输块被划分为2个编码块组CBG，以及2个CBG分别被映射到不同的传输层。
在一个可能的设计中，方法还包括：
网络设备根据不同DMRS端口对应的信道质量信息相差大于预设阈值，确定在传输层数等于3或4时划分传输块。
在一个可能的设计中，方法还包括：
网络设备向终端设备发送分组配置消息，分组配置消息用于指示：在传输层数等于3或4时划分传输块。
本申请第十六方面提供一种数据传输方法，包括：
终端设备获取传输层数；
终端设备与网络设备进行数据传输；其中，数据对应传输块，传输块被根据传输层数映射于对应的传输层。
通过第十六方面提供的数据传输方法，通过终端设备与网络设备进行数据传输，其中，数据对应传输块，传输块被根据传输层数映射于对应的传输层。可见，可以根据传输层数的不同实现灵活地资源映射，以便于可以适用于不同的业务需求、不同的传输场景或者不 同的信道状况等。
在一个可能的设计中，传输块被根据传输层数映射于对应的传输层，包括：
若传输层数等于1或2，传输块被映射到对应的传输层；
若传输层数等于3或4，且分组配置消息用于指示划分传输块，则传输块被划分为2个编码块组CBG，以及2个CBG分别被映射到不同的传输层。
在一个可能的设计中，方法还包括：
终端设备接收网络设备发送的分组配置消息。
第十七方面，本申请实施例提供一种网络设备，包括：
确定模块，用于确定传输层数；
传输模块，用于与终端设备进行数据传输；其中，数据对应传输块，传输块被根据传输层数映射于对应的传输层。
在一个可能的设计中，传输块被根据传输层数映射于对应的传输层，包括：
若传输层数等于1或2，传输块被映射到对应的传输层；
若传输层数等于3或4，传输块被划分为2个编码块组CBG，以及2个CBG分别被映射到不同的传输层。
在一个可能的设计中，网络设备还包括：
确定模块，用于根据不同DMRS端口对应的信道质量信息相差大于预设阈值，确定在传输层数等于3或4时划分传输块。
在一个可能的设计中，网络设备还包括：
发送模块，用于向终端设备发送分组配置消息，分组配置消息用于指示：在传输层数等于3或4时划分传输块。
上述第十七方面的实施方式所提供的网络设备，其有益效果可以参见上述第十五方面的各可能的实施方式所带来的有益效果，在此不再赘述。
第十八方面，本申请实施例提供一种终端设备，包括：
获取模块，用于获取传输层数；
传输模块，用于与网络设备进行数据传输；其中，数据对应传输块，传输块被根据传输层数映射于对应的传输层。
在一个可能的设计中，传输块被根据传输层数映射于对应的传输层，包括：
若传输层数等于1或2，传输块被映射到对应的传输层；
若传输层数等于3或4，且分组配置消息用于指示划分传输块，则传输块被划分为2个编码块组CBG，以及2个CBG分别被映射到不同的传输层。
在一个可能的设计中，终端设备还包括：
接收模块，用于接收网络设备发送的分组配置消息。
上述第十八方面的实施方式所提供的终端设备，其有益效果可以参见上述第十六方面的各可能的实施方式所带来的有益效果，在此不再赘述。
本申请第十九方面提供一种网络设备，包括：存储器、处理器和收发器；
其中，存储器用于存储程序指令；
处理器用于调用存储器中的程序指令执行下述步骤：用于确定传输层数；
收发器用于用于与终端设备进行数据传输；其中，数据对应传输块，传输块被根据传 输层数映射于对应的传输层。
在一个可能的设计中，传输块被根据传输层数映射于对应的传输层，包括：
若传输层数等于1或2，传输块被映射到对应的传输层；
若传输层数等于3或4，传输块被划分为2个编码块组CBG，以及2个CBG分别被映射到不同的传输层。
在一个可能的设计中，处理器还用于：根据不同DMRS端口对应的信道质量信息相差大于预设阈值，确定在传输层数等于3或4时划分传输块。
在一个可能的设计中，收发器还用于：向终端设备发送分组配置消息，分组配置消息用于指示：在传输层数等于3或4时划分传输块。
上述第十九方面的实施方式所提供的网络设备，其有益效果可以参见上述第十五方面的各可能的实施方式所带来的有益效果，在此不再赘述。
本申请第二十方面提供一种网络设备，包括用于执行以上第十五方面的方法的至少一个处理元件(或芯片)。
本申请第二十一方面提供一种程序，该程序在被处理器执行时用于执行以上第十五方面的方法。
本申请第二十二方面提供一种程序产品，例如计算机可读存储介质，包括第二十一方面的程序。
本申请第二十三方面提供一种计算机可读存储介质，计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机执行上述第十五方面的方法。
本申请第二十四方面提供一种终端设备，包括：存储器、处理器和收发器：
其中，存储器用于存储程序指令；
处理器用于调用存储器中的程序指令执行下述步骤：获取传输层数；
收发器用于与网络设备进行数据传输；其中，数据对应传输块，传输块被根据传输层数映射于对应的传输层。
在一个可能的设计中，传输块被根据传输层数映射于对应的传输层，包括：
若传输层数等于1或2，传输块被映射到对应的传输层；
若传输层数等于3或4，且分组配置消息用于指示划分传输块，则传输块被划分为2个编码块组CBG，以及2个CBG分别被映射到不同的传输层。
在一个可能的设计中，收发器还用于：接收网络设备发送的分组配置消息。
上述第二十四方面的实施方式所提供的终端设备，其有益效果可以参见上述第十六方面的各可能的实施方式所带来的有益效果，在此不再赘述。
本申请第二十五方面提供一种终端设备，包括用于执行以上第十六方面的方法的至少一个处理元件(或芯片)。
本申请第二十六方面提供一种程序，该程序在被处理器执行时用于执行以上第十六方面的方法。
本申请第二十七方面提供一种程序产品，例如计算机可读存储介质，包括第二十六方面的程序。
本申请第二十八方面提供一种计算机可读存储介质，计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机执行上述第十六方面的方法。
附图说明
图1为通信系统的框架图；
图2A为本申请数据传输方法实施例一的流程示意图；
图2B为本申请实施例中划分CB的示意图；
图3为本申请数据传输方法实施例二的流程示意图；
图4为本申请数据传输方法实施例三的流程示意图；
图5为本申请数据传输方法实施例四的流程示意图；
图6为本申请数据传输方法实施例五的流程示意图；
图7为本申请数据传输方法实施例六的流程示意图；
图8为本申请网络设备实施例一的结构示意图；
图9为本申请网络设备实施例二的结构示意图；
图10为本申请终端设备实施例一的结构示意图；
图11为本申请终端设备实施例二的结构示意图。
具体实施方式
首先，对本申请实施例中所涉及的通信系统和部分词汇进行解释说明
图1为通信系统的框架图。如图1所示，该通信系统包括：网络设备01和终端设备02。可选地，该通信系统可以为长期演进(Long Term Evolution，LTE)通信系统或第五代(5-Generation，5G)移动通信系统，如新一代(New Radio，NR)无线接入技术；在此不作限制。
本申请设计的网络设备可以包括但不限于：基站、发送接收点(Transmission Reception Point，TRP)。其中，基站：又称为无线接入网(Radio Access Network，RAN)设备，是一种将终端接入到无线网络的设备，可以是全球移动通讯(Global System of Mobile communication，GSM)或码分多址(Code Division Multiple Access，CDMA)中的基站(Base Transceiver Station，BTS)，也可以是宽带码分多址(Wideband Code Division Multiple Access，WCDMA)中的基站(NodeB，NB)，还可以是长期演进(Long Term Evolution，LTE)中的演进型基站(Evolutional Node B，eNB或eNodeB)，或者中继站或接入点，或者未来5G网络中的基站等，在此并不限定。
终端设备：可以是无线终端也可以是有线终端，无线终端可以是指向用户提供语音和/或其他业务数据连通性的设备，具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备。无线终端可以经无线接入网(Radio Access Network，RAN)与一个或多个核心网进行通信，无线终端可以是移动终端，如移动电话(或称为“蜂窝”电话)和具有移动终端的计算机，例如，可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，它们与无线接入网交换语言和/或数据。例如，个人通信业务(Personal Communication Service，PCS)电话、无绳电话、会话发起协议(Session Initiation Protocol，SIP)话机、无线本地环路(Wireless Local Loop，WLL)站、个人数字助理(Personal Digital Assistant，PDA)等设备。无线终端也可以称为系统、订户单元(Subscriber Unit)、订户 站(Subscriber Station)，移动站(Mobile Station)、移动台(Mobile)、远程站(Remote Station)、远程终端(Remote Terminal)、接入终端(Access Terminal)、用户终端(User Terminal)、用户代理(User Agent)、用户设备(User Device or User Equipment)，在此不作限定。
本申请实施例中的DMRS端口是指用于发送DMRS的天线端口，该天线端口也用于发送物理数据信道或者物理控制信道，通过该天线端口发送的DMRS信号可以用来对通过该天线端口发送的物理数据信道或者物理控制信道进行信道估计并进行信号解调。本申请实施例中对DMRS端口、天线端口等不做区分，其对应相同的含义。
本申请实施例中的一个DMRS端口组内的各DMRS端口之间满足准共址(Quasi-Co-Location，QCL)要求，分属不同DMRS端口组的两个DMRS端口之间不满足QCL要求。通常情况下，如果一个天线端口所经历信道对应的大尺度特性可以通过另外一个天线端口所经历信道的大尺度特性获取得到，则称这两个天线端口满足QCL要求。其中大尺度特性包括但不限于：时延扩展、平均时延、平均功率、多普勒扩展、多普勒频偏、以及空域信息(如到达角度、接收天线相关性等)。
本申请实施例中的网络设备可被配置为相干MIMO传输(即网络设备中的不同天线面板所对应的DMRS端口分属于同一个DMRS端口组，或者该网络设备与其它网络设备所对应的DMRS端口分属于同一个DMRS端口组)，也可被配置为非相干MIMO传输(即网络设备中的不同天线面板所对应的DMRS端口分属于不同的DMRS端口组，或者该网络设备与其它网络设备所对应的DMRS端口分属于不同的DMRS端口组)。以下实施例部分中会分别对两种场景进行描述。
本申请实施例中涉及的CBG或者传输块映射至对应的传输层的过程中还包括但不限于下述过程：对CBG或者传输块依次进行加扰、调制以及层映射等过程。具体的，加扰、调制以及层映射的实现过程可参见第三代合作伙伴计划(3 rd Generation Partnership Project,3GPP)长期演进系统(Long Term Evolution,LTE)技术规范(Technical Specification,TS)36.211版本12.5.0(v12.5.0)中的5.3.1节中的上行物理共享信道的加扰过程、5.3.2节中的上行物理共享信道的调制和层映射过程、6.3.1节中下行物理共享信道的加扰过程、6.3.2节中下行物理共享信道的调制过程和6.3.3.2节中下行物理共享信道进行空分复用传输时的层映射过程，在此不予赘述，可以理解的是，CBG或者数据映射至对应的传输层的过程还可以为其他现有的方式或未来的方式，在本申请实施例中不作限制。
本申请实施例中的网络设备和/或终端设备中预先设置有DMRS端口组与对应传输层之间的映射关系，或者网络设备通过高层消息或者物理层消息动态的配置网络设备和/或终端设备中DMRS端口组与对应传输层之间的映射关系，以便在获知DMRS端口组便能够获知所述DMRS端口组对应的数据映射至哪些传输层。本申请实施例中，一个天线端口发送一个传输层对应的数据流，因此可以认为传输层和天线端口之间是一一映射的关系。在本申请实施例中，传输层和天线端口可以不进行区分，通过映射关系，可以认为两者是等同的。
下面结合附图通过具体实施例对本申请实施例提供的数据传输方法、网络设备及终端设备进行详细说明。
图2A为本申请数据传输方法实施例一的流程示意图。本申请实施例针对非相干 MIMO传输(即多个DMRS天线端口组)进行说明。如图2A所示，本实施例的方法可以包括：
步骤S201、网络设备确定DMRS端口组。
本步骤中，网络设备确定所述网络设备与终端设备进行数据传输所使用的DMRS端口组，可选的，所述DMRS端口组的个数大于等于2。可选的，所述网络设备根据所述终端设备反馈的信道状态信息或者终端设备发送的上行探测参考信号等，并结合网络负载和干扰状态，进行用户调度和资源分配，确定所述网络设备与所述终端设备进行数据传输所使用的DMRS端口组。当然，所述网络设备还可通过其它方式确定所述DMRS端口组，本申请实施例中对此并不作限制。
步骤S202、终端设备获取解调参考信号DMRS端口组的配置信息。
本步骤中，所述终端设备获取DMRS端口组的配置信息的方式可以包括但不限于下述方式：所述终端设备接收所述网络设备发送的通知消息(可选地，通知消息中携带所述DMRS端口组的配置信息以及DMRS端口组中包括的天线端口信息)、所述终端设备获取预设的DMRS端口组的配置信息。可选的，所述通知消息可以包括但不限于以下任意一种或者几种结合：下行控制信息(Downlink Control Information，DCI)、无线资源控制(Radio Resource Control，RRC)消息、媒体接入控制元素(Media Access Control Control Element,MAC CE)。
步骤S203、所述网络设备与终端设备进行数据传输。
其中，所述数据对应传输块，所述传输块被划分为至少一个编码块组CBG，所述至少一个CBG中每一个对应一个所述DMRS端口组(即不同DMRS端口组对应不同的CBG，一个CBG不会对应到多个所述DMRS端口组)，并映射至与所述一个DMRS端口组所对应的传输层。
本步骤中，(1)针对下行数据传输，所述网络设备向终端设备发送数据，所述数据对应传输块，例如传输块(Transport Block，TB)。所述传输块被所述网络设备划分为至少一个编码块组CBG，所述至少一个CBG中每一个CBG对应一个所述DMRS端口组(即不同所述DMRS端口组对应不同的CBG，或者一个CBG不会对应多个所述DMRS端口组)，并且所述至少一个CBG中每一个CBG被映射至与所述一个DMRS端口组所对应的传输层。例如，网络设备确定DMRS端口组包括：DMRS端口组1和DMRS端口组2(即DMRS端口组的个数等于2)，则所述传输块被划分为2个CBG(包括：DMRS端口组1对应的CBG1以及DMRS端口组2对应的CBG2)，以及CBG1被映射至DMRS端口组1所对应的传输层，CBG2被映射至DMRS端口组2所对应的传输层。可选的，所述传输块也可被划分为DMRS端口组个数的整数倍个CBG(如，传输块被划分为CBG1-CBG4)，对应的，每个DMRS端口组对应2个CBG(如，DMRS端口组1对应CBG1和CBG2,DMRS端口组2对应CBG3和CBG4)。可见，保证了不同DMRS端口组所发送的数据流分属不同的CBG，以便终端设备能够对每个DMRS端口组对应的CBG单独译码。
对应的，所述终端设备接收所述网络设备发送的所述数据，并根据已获知的所述DMRS端口组(如根据步骤S202中的DMRS端口组的配置信息，获知了DMRS端口组)对接收到的所述数据进行译码。例如，所述终端设备根据所述DMRS端口组便能够获知所述传输块的划分方式(如划分几个CBG)以及资源映射方式(如映射到哪几个传输层)， 从而所述终端设备可以对每个所述DMRS端口组对应的CBG单独进行译码。
(2)针对上行数据传输，所述终端设备在获知DMRS端口组的配置信息(即获知了DMRS端口组)后，所述终端设备向所述网络设备发送数据，所述数据对应传输块(例如TB)。所述传输块被所述终端设备划分为至少一个编码块组CBG，所述至少一个CBG中每一个CBG对应一个所述DMRS端口组(即不同所述DMRS端口组对应不同的CBG，或者一个CBG不会对应多个所述DMRS端口组)，并且所述至少一个CBG中每一个CBG被映射至与所述一个DMRS端口组所对应的传输层。可见，保证了不同DMRS端口组所发送的数据流分属不同的CBG，以便网络设备能够对每个DMRS端口组对应的CBG单独译码。
对应的，所述网络设备接收所述终端设备发送的所述数据，并根据确定的所述DMRS天线端口组对接收到的所述数据进行译码。例如，所述网络设备根据所述DMRS端口组便能够获知所述传输块的划分方式(如划分几个CBG)以及资源映射方式(如映射到哪几个传输层)，从而所述网络设备可以对每个所述DMRS端口组对应的CBG单独进行译码。
可选的，针对上述下行数据传输和/或上行数据传输，所述传输块被划分为至少一个CBG的可实现方式可以包括但不限于如下两种：
第一种可实现方式：所述传输块加上冗余校验位后被划分为N个码块CB；其中，所述
Figure PCTCN2018079412-appb-000049
B代表所述传输块加上冗余校验位后的总比特数，c代表预设数值(即CB所包含的最大比特数，例如6144、8196等)，
Figure PCTCN2018079412-appb-000050
代表向上取整运算；所述N个CB被划分为与所述DMRS端口组对应的CBG(即每个DMRS端口组对应至少一个CBG，不同DMRS端口组对应不同的CBG，一个CBG不会对应多个DMRS端口组)。可选地，所述N个CB被划分为与所述DMRS端口组对应的CBG过程中，所述N个CB之间级联的具体方式，本申请实施例中对此并不作限制。可选的，每个所述CBG所包含的CB个数等于如下公式计算得到的数值：
Figure PCTCN2018079412-appb-000051
或者
Figure PCTCN2018079412-appb-000052
可选地，所有CBG包括的CB个数之和等于系统总的CB数目N；其中，B 0代表所述CBG对应的DMRS端口组所发送的数据比特数目，B s代表各所述DMRS端口组所发送的数据比特数目之和，
Figure PCTCN2018079412-appb-000053
代表向下取整运算，
Figure PCTCN2018079412-appb-000054
代表向上取整运算。可选的，每个所述DMRS端口所发送的数据比特数目等于所述DMRS端口对应传输层的调制编码方案(Modulation and Coding Scheme,MCS)*所述DMRS端口所对应的传输层数*分配给所述DMRS端口对应的传输层用于数据传输的物理时频资源单元(Resource Element,RE)的数目。
例如，假设DMRS端口组1所发送的数据比特数目为B1以及DMRS端口组2所发送的数据比特数目为B2，传输块被划分为N个码块CB，则DMRS端口组1对应的CBG1所包含的CB个数等于：
Figure PCTCN2018079412-appb-000055
对应的，DMRS端口组2对应的CBG2所包含的CB个数等于：
Figure PCTCN2018079412-appb-000056
的值；或者，DMRS端口组1对应的CBG1所包含的CB 个数等于：
Figure PCTCN2018079412-appb-000057
对应的，DMRS端口组2对应的CBG2所包含的CB个数等于：
Figure PCTCN2018079412-appb-000058
的值。
可选的，所述传输块被划分为N个码块CB的过程可参见3GPP LTE TS 36.212版本13.1.0(v13.1.0)中的5.1.2节中的码块分段和添加冗余校验过程，在此不予赘述，可以理解的是，传输块被划分为CB的过程还可以为其他现有的方式或未来的方式，划分过程中使用的参数可能与现有方案不同，在本发明实施例中不作限制。例如,图2B为本申请实施例中划分CB的示意图，如图2B所示，传输块(如TB)可以认为是媒体接入控制(Media Access Control，MAC)层数据，通常在添加循环冗余校验(Cyclic Redundancy Check，CRC)后被划分为N个CB，然后每个所述CB被添加独立的CRC以及编码后得到N个编码后的CB。
第二种可实现方式：所述传输块被划分为每个所述DMRS端口组对应的子传输块(即每个DMRS端口组对应一个子传输块，不同DMRS端口组对应不同的子传输块，一个子传输块不会对应多个DMRS端口组)；每个所述子传输块被分别编码，得到与所述DMRS端口组对应的CBG。可选的，每个所述子传输块被分别编码的过程可参见的过程可参见3GPP LTE TS 36.212版本13.1.0(v13.1.0)中的5.1章中的一般编码过程，在此不予赘述，可以理解的是，子传输块被编码的过程还可以为其他现有的方式或未来的方式，编码过程中使用的参数可能与现有方案不同，在本发明实施例中不作限制。
本申请实施例中，上述步骤序号的大小并不限定执行顺序的先后，各步骤的执行顺序应以其功能和内在逻辑确定，本申请实施例中对此并不作限制。
本申请实施例中，所述网络设备与终端设备进行数据传输；其中，所述数据对应传输块，所述传输块被划分为至少一个编码块组CBG，所述至少一个CBG中每一个对应一个所述DMRS端口组，并映射至与所述一个DMRS端口组所对应的传输层。可见，保证了不同DMRS端口组所发送的数据流分属不同的CBG，以便接收端能够对每个DMRS端口组对应的CBG单独译码(即能够对不同传输层上映射的数据流进行独立译码)，从而能够支持干扰消除接收机进行干扰消除。
进一步的，由于接收端能够对每个DMRS端口组对应的CBG单独译码，因此，接收端可以以CBG为单位进行ACK/NACK的反馈。例如，当接收端对一个CBG正确译码时，则反馈一个ACK；否则，反馈NACK，对应的，发送端需要重传接收端译码错误的CBG，直至接收端正确地接收到所述CBG或者达到最大重传次数。可选的，默认重传时映射的传输层可以与初传时映射的传输层相同；当然也可通过交换标识指示重传时映射的传输层与初传时映射的传输层不同。例如，假设CBG1和CBG2译码错误，初传时CBG1映射到前两层，CBG2映射到后两层，则根据交换标识在重传时CBG1映射到后两层，CBG2映射到前两层。又例如，假设CBG1译码错误，重传CBG1时映射的传输层默认与初传CBG1时映射的传输层相同，或者可以通过交换标识指示重传CBG1时映射的传输层与初传CBG2时映射的传输层相同。
本申请上述实施例中主要描述了根据DMRS端口组个数在MIMO传输时的不同传输层或者不同天线端口上对传输块的划分，使得每个DMRS端口组对应至少一个CBG。可 选地，若结合时域和/或频域上的划分，每个DMRS端口组所对应的至少一个CBG在时域上可能对应不同符号组，和/或，在频域上可能对应不同子带组；例如，假设DMRS端口组对应CBG1-CBG3，若结合时域划分，CBG1和CBG2对应符号组1、CBG3对应符号组2；若结合频域划分，CBG1对应子带组1、CBG2和CBG3对应子带组2。对应的，CBG除了在空域(即传输层或者天线端口)映射外，还可在时域和/或频域进行映射，例如，依次进行层映射(本申请上述实施例一中记载的资源映射方式)、频域映射以及时域映射，具体的频域映射和/或时域映射可参见现有的映射方式。例如，根据符号组(包括至少一个符号)进行时域映射，和/或，根据子带组(包括至少一个子带)进行频域映射。
图3为本申请数据传输方法实施例二的流程示意图。在上述实施例的基础上，本申请实施例针对下行非相干MIMO传输(即多个DMRS天线端口组)进行说明。如图3所示，本实施例的方法可以包括：
步骤S301、网络设备确定解调参考信号DMRS端口组。
本步骤中，网络设备确定向终端设备发送数据所使用的DMRS端口组，可选的，所述DMRS端口组的个数大于等于2。
步骤S302、网络设备向终端设备发送通知消息以及数据。
可选的，所述通知消息中携带各DMRS端口组的配置信息，以便终端设备能够根据通知消息获知所述DMRS端口组。
可选的，所述数据对应传输块，所述传输块被网络设备划分为至少一个编码块组CBG，所述至少一个CBG中每一个CBG对应一个所述DMRS端口组，并且所述至少一个CBG中每一个CBG被映射至与所述一个DMRS端口组所对应的传输层。具体的划分方式可参见本申请上述实施例一，以及资源映射方式可参见本申请上述实施例一或下述实施例七，此处不再赘述。
步骤S303、所述终端设备接收所述通知消息以及所述数据。
本步骤中，所述终端设备根据所述通知消息确定所述DMRS端口组，并根据所述DMRS端口组能够获知所述传输块的划分方式(如划分几个CBG)以及资源映射方式(如映射到哪几个传输层)，从而所述终端设备可以对每个所述DMRS端口组对应的CBG单独进行译码(即能够对不同传输层上映射的数据流进行独立译码)，能够支持干扰消除接收机进行干扰消除。
图4为本申请数据传输方法实施例三的流程示意图。在上述实施例的基础上，本申请实施例针对上行非相干MIMO传输(即多个DMRS天线端口组)进行说明。如图4所示，本实施例的方法可以包括：
步骤S401、终端设备获取解调参考信号DMRS端口组的配置信息。
本步骤中，终端设备根据DMRS端口组的配置信息，获知所述终端设备向网络设备发送数据所使用的DMRS端口组，可选的，所述DMRS端口组的个数大于等于2。可选的，所述DMRS端口组的配置信息可以为所述网络设备通知给所述终端设备，或者，所述终端设备中预设的(对应的，网络设备中也预设有所述DMRS端口组的配置信息)。
步骤S402、终端设备向所网络设备发送数据。
可选的，所述数据对应传输块，所述传输块被终端设备划分为至少一个编码块组CBG，所述至少一个CBG中每一个CBG对应一个所述DMRS端口组，并且所述至少一个CBG中每一个CBG被映射至与所述一个DMRS端口组所对应的传输层。具体的划分方式可参见本申请上述实施例一，以及资源映射方式可参见本申请上述实施例一或下述实施例七，此处不再赘述。
步骤S403、所述网络设备接收所述数据。
本步骤中，所述网络设备根据所述终端设备向网络设备发送数据所使用的DMRS端口组，并根据所述DMRS端口组能够获知所述传输块的划分方式(如划分几个CBG)以及资源映射方式(如映射到哪几个传输层)，从而所述网络设备可以对每个所述DMRS端口组对应的CBG单独进行译码。
图5为本申请数据传输方法实施例四的流程示意图。本申请实施例针对相干MIMO传输(即一个DMRS天线端口组)进行说明。如图5所示，本实施例的方法可以包括：
步骤S501、网络设备确定传输层数。
本步骤中，网络设备确定每个传输块(如TB)所对应的传输层数。可选的，所述网络设备根据所述终端设备发送的调度结果信息(例如，测量的下行参考信号，或者，上行探测参考信号等)，确定所述网络设备与所述终端设备进行数据传输所使用的总传输层数。通常情况下，当总传输层数大于等于1且小于等于4时，支持一个传输块的传输；当总传输层数大于4且小于等于8时，支持两个传输块的传输。可见，在确定总传输层数的前提下，网络设备便可获知每个传输块对应的传输层数。当然，网络设备还可通过其它方式确定所述传输层数，本申请实施例中对此并不作限制。
步骤S502、终端设备获取所述传输层数。
本步骤中，所述终端设备获取传输层数的方式可以包括但不限于下述方式：所述终端设备接收所述网络设备发送的通知消息(可选地，通知消息中携带所述传输层数的配置信息)、所述终端设备获取预设的传输层数的配置信息。可选的，所述通知消息可以包括但不限于以下任意一种：下行控制信息(Downlink Control Information，DCI)、无线资源控制(Radio Resource Control，RRC)消息、MAC CE。
可选地，所述通知消息中还可携带所述DMRS端口组中包括的天线端口信息，以便终端设备能够获知用于进行数据传输所使用的天线端口。可选地，所述终端设备也可获取预设的所述DMRS端口组中包括的天线端口信息。当然，所述终端设备还可通过其它方式获取所述天线端口信息，本申请实施例中对此并不作限制。
步骤S503、所述网络设备与终端设备进行数据传输。
本步骤中，(1)针对下行数据传输，所述网络设备向终端设备发送数据，其中，所述数据对应传输块(例如TB)，所述传输块被根据所述传输层数映射于对应的传输层。
可选的，所述传输块被根据所述传输层数映射于对应的传输层的可实现方式可以包括但不限于如下两种：
第一种可实现方式：若所述传输层数大于等于1且小于等于4，所述传输块被映射到对应的传输层。例如，当传输层数等于1时，所述传输块被映射到对应的1个传输层；当传输层数等于2时，所述传输块被映射到对应的2个传输层；当传输层数等于3时，所述 传输块被按序映射到对应的3个传输层；当传输层数等于4时，所述传输块被按序映射到对应的4个传输层。可选地，通过网络设备动态信令或者预定义的规则，指示传输层与用于发送该传输层中数据流的天线端口之间的关系，以便终端设备在获知用于发送的天线端口后将所述传输块映射至所述天线端口对应的传输层，并将所述传输层中的数据流通过所述天线端口进行发送。
第二种可实现方式：(A)若所述传输层数等于1或2，所述传输块被映射到对应的传输层。例如，当传输层数等于1时，所述传输块被映射到对应的1个传输层；当传输层数等于2时，所述传输块被映射到对应的2个传输层。(B)若所述传输层数等于3或4，所述传输块被划分为2个编码块组CBG，以及所述2个CBG分别被映射到不同的所述传输层；或者，所述传输块被映射到对应的传输层(如3个传输层或者4个传输层)，可选地，所述传输块按照预设规则或者动态配置消息所指示的规则映射到对应的传输层。例如，当传输层数等于3时，所述传输块被划分为CBG1和CBG2,CBG1被映射于3层中的任意一层，CBG2被映射于所述3层中除所述CBG1映射的传输层之外的其它两个传输层；或者，CBG1被映射于3层中的任意两层，CBG2被映射于所述3层中除所述CBG1映射的传输层之外的其它传输层。又例如，当传输层数等于4时，所述传输块被划分为CBG1和CBG2,CBG1被映射于4层中的任意两个传输层(例如前两层)，CBG2被映射于所述4层中除所述CBG1映射的传输层之外的其它两个传输层(例如后两层)。
可选的，按照所述第二种可实现方式时，所述方法还包括：所述网络设备根据不同DMRS端口对应的信道质量信息相差大于预设阈值，确定在所述传输层数等于3或4时划分所述传输块，即当不同DMRS端口对应的信道质量信息相差小于等于所述预设阈值时，所述网络设备确定在所述传输层数等于3或4时不划分所述传输块。可选的，所述网络设备还可根据业务需求，确定在所述传输层数等于3或4时是否划分所述传输块。可选的，对于时延敏感业务，所述网络设备可确定在所述传输层数等于3或4时无需划分所述传输块；对于时延非敏感业务，所述网络设备可确定在所述传输层数等于3或4时划分所述传输块。其中，时延敏感业务是指要求在一个子帧内进行ACK/NACK反馈的业务，例如超短时延超可靠性连接(Ultra Low Latency and Reliability Connection,ULLRC)业务；反之，则为时延非敏感业务，例如移动宽带(Mobile BroadBand,MBB)业务。
为了保证终端设备侧能获知所述网络设备侧的划分及映射方式，所述方法还包括：所述网络设备向所述终端设备发送分组配置消息，所述分组配置消息用于指示：在所述传输层数等于3或4时划分所述传输块。可选的，所述分组配置消息可以携带于以下任意一种信息中：DCI、RRC消息、MAC CE。当然，所述分组配置消息还可携带于其它信息中，本申请实施例中对此并不作限制。
对应的，所述终端设备接收所述网络设备发送的所述数据，当未接收到所述分组配置消息时，所述终端设备直接根据已获知的所述传输层数(如根据步骤S502所获取的)对接收到的所述数据进行译码，例如，所述终端设备根据所述传输层数便能获知所述数据的资源映射方式(如映射到哪几个传输层)；当接收到所述分组配置消息时，所述终端设备根据所述传输层数能够获知传输层数等于1或2时的资源映射方式，以及根据所述分组配置消息能够确定传输层数等于3或4时的资源划分(如划分几个CBG)和映射方式(如映射到哪几个传输层)。
(2)针对上行数据传输，所述终端设备向所述网络设备发送所述数据，其中，所述数据对应传输块(例如TB)，所述传输块被根据所述传输层数映射于对应的传输层。
可选的，所述传输块被根据所述传输层数映射于对应的传输层的可实现方式可以包括但不限于如下两种：
第一种可实现方式：若所述传输层数大于等于1且小于等于4，所述传输块被映射到对应的传输层。例如，当传输层数等于1时，所述传输块被映射到对应的1个传输层；当传输层数等于2时，所述传输块被映射到对应的2个传输层；当传输层数等于3时，所述传输块被按序映射到对应的3个传输层；当传输层数等于4时，所述传输块被按序映射到对应的4个传输层。
第二种可实现方式：(A)若所述传输层数等于1或2，所述传输块被映射到对应的传输层。(B)若所述传输层数等于3或4，且分组配置消息用于指示划分所述传输块，则所述传输块被划分为2个编码块组CBG，以及所述2个CBG分别被映射到不同的所述传输层；或者，若未获取到所述分组配置消息，所述传输块被映射到对应的传输层。例如，若所述终端设备获取到所述分组配置消息，则所述传输块被划分为2个CBG；若未获取到所述分组配置消息，则所述传输块被直接映射到对应的传输层。可选的，所述终端设备可通过接收所述网络设备发送的所述分组配置消息来获取到所述分组配置消息，或者，还可通过获取预先配置的分组配置消息来获取到所述分组配置消息；当然，还可通过其它方式获取，本申请实施例中对此并不作限制。
对应的，所述网络设备接收所述终端设备发送的所述数据，当未获取到分组配置消息时，直接根据所述传输层数(如根据步骤S501所确定的)对接收到的所述数据进行译码；例如，所述网络设备根据所述传输层数便能获知所述数据的资源映射方式(如映射到哪几个传输层)；当获取到所述分组配置消息时，所述网络设备根据所述传输层数能够获知传输层数等于1或2时的资源映射方式，以及根据所述分组配置消息能够确定传输层数等于3或4时的资源划分(如划分几个CBG)和映射方式(如映射到哪几个传输层)。
本申请实施例中，上述步骤序号的大小并不限定执行顺序的先后，各步骤的执行顺序应以其功能和内在逻辑确定，本申请实施例中对此并不作限制。
本申请实施例中，所述网络设备与终端设备进行数据传输，其中，所述数据对应传输块，所述传输块被根据所述传输层数映射于对应的传输层。可见，可以根据传输层数的不同实现灵活地资源映射，以便于可以适用于不同的业务需求、不同的传输场景或者不同的信道状况等。
本申请上述实施例中介绍了初传时的映射方式，下述部分介绍重传时的映射方式。可选的，当单个传输块对应的传输层数等于1或2时，默认重传时映射的传输层与初传时映射的传输层相同；当单个传输块对应的传输层数等于3或4时，默认重传时映射的传输层可以与初传时映射的传输层相同，当然也可通过交换标识指示重传时映射的传输层与初传时映射的传输层不同。例如，假设CBG1和CBG2译码错误，初传时CBG1映射到前两层，CBG2映射到后两层，则根据交换标识在重传时CBG1映射到后两层，CBG2映射到前两层。又例如，假设CBG1译码错误，重传CBG1时映射的传输层默认与初传CBG1时映射的传输层相同，或者可以通过交换标识指示重传CBG1时映射的传输层与初传CBG2时映射的传输层相同。
可选地，本申请实施例中，传输块被划分为1个或多个CBG的划分方式可参见本申请上述实施例一中关于“传输块被划分至少一个CBG”的相关内容，此处不再赘述。
可选地，本申请实施例中，所述CBG仅针MIMO传输时的不同传输层对传输块的划分，即空域的划分。若结合时域和/或频域上的划分，本申请实施例也可适用于传输块在空域划分结合时域符号和/或频域子带的划分后的一个CBG，当然还可适用于其它情形，本申请实施例中对此并不作限制。具体地，如何对传输块进行时域和/或频域划分，以及如何进行时域和/或频域的资源映射，本申请实施例中对此并不作限制。
本申请上述实施例中主要描述了在空域上对传输块的映射，进一步的，还可在时域和/或频域上进行映射；例如，依次进行层映射(本申请上述实施例四中记载的资源映射方式)、频域映射以及时域映射，具体的频域映射和/或时域映射可参见现有的映射方式。例如，根据符号组(包括至少一个符号)进行时域映射，和/或，根据子带组(包括至少一个子带)进行频域映射。
图6为本申请数据传输方法实施例五的流程示意图。在上述实施例四的基础上，本申请实施例针对下行相干MIMO传输(即一个DMRS天线端口组)进行说明。如图6所示，本实施例的方法可以包括：
步骤S601、网络设备确定传输层数。
本步骤中，网络设备确定每个传输块(如TB)所对应的传输层数。
步骤S602、所述网络设备向终端设备发送通知消息以及数据。
可选的，所述通知消息中携带所述传输层数的配置信息，以便所述终端设备能够根据所述通知消息获知所述传输层数。可选地，所述通知消息中还可携带所述DMRS端口组中包括的天线端口信息，以便终端设备能够获知用于进行数据传输所使用的天线端口。
可选的，所述数据对应传输块，所述传输块被根据所述传输层数映射于对应的传输层。具体的资源映射方式可参见本申请上述实施例四，此处不再赘述。
步骤S603、所述终端设备接收所述通知消息以及所述数据。
本步骤中，所述终端设备根据所述通知消息确定所述传输层数以及所述DMRS端口组中包括的天线端口，当未接收到所述网络设备发送的分组配置消息时，所述终端设备直接根据所述传输层数便能获知所述传输块的资源映射方式(如映射到哪几个传输层)。当接收到所述网络设备发送的分组配置消息时，所述终端设备根据所述传输层数能够获知传输层数等于1或2时的资源映射方式，以及根据所述分组配置消息能够获知传输层数等于3或4时的资源划分和映射方式。可见，可以根据传输层数的不同实现灵活地资源映射，以便于可以适用于不同的业务需求、不同的传输场景或者不同的信道状况等。
图7为本申请数据传输方法实施例六的流程示意图。在上述实施例四的基础上，本申请实施例针对上行相干MIMO传输(即一个DMRS天线端口组)进行说明。如图7所示，本实施例的方法可以包括：
步骤S701、终端设备获取传输层数的配置信息。
本步骤中，终端设备根据传输层数的配置信息，获知每个传输块(如TB)所对应的传输层数。可选的，所述传输层数的配置信息可以为所述网络设备通知给所述终端设备， 或者，所述终端设备中预设的(对应的，网络设备中也预设有所述传输层数的配置信息)。可选地，所述终端设备还可获取到DMRS端口组中包括的天线端口信息，从而能够获知用于向网络设备发送数据所使用的天线端口。其中，获取所述天线端口信息的方式可参见本申请上述实施例五中相关记载，此处不再赘述。
步骤S702、所述终端设备向所述网络设备发送数据。
可选的，所述数据对应传输块，所述传输块被根据所述传输层数映射于对应的传输层。具体的资源映射方式可参见本申请上述实施例四，此处不再赘述。
步骤S703、所述网络设备接所述数据。
本步骤中，所述网络设备接收所述终端设备发送的所述数据，当未获取到分组配置消息时，直接根据所述传输层数便能获知所述数据的资源映射方式(如映射到哪几个传输层)。当获取到所述分组配置消息时，所述网络设备根据所述传输层数能够获知传输层数等于1或2时的资源映射方式，以及根据所述分组配置消息能够确定传输层数等于3或4时的资源划分(如划分几个CBG)和映射方式(如映射到哪几个传输层)。可见，可以根据传输层数的不同实现灵活地资源映射，以便于可以适用于不同的业务需求、不同的传输场景或者不同的信道状况等。
本申请数据传输方法实施例七中，对上述实施例一至实施例三中的“至少一个CBG中每一个被映射至与所述一个DMRS端口组所对应的传输层”的可实现方式进行解释说明。
可选地，至少一个CBG中每一个被映射至与所述一个DMRS端口组所对应的传输层，包括：
各所述DMRS端口组对应的CBG所包括的数据比特序列被按照第一预设顺序依次抽取预设数量个数据比特，进行串行级联得到级联数据比特序列；
所述级联数据比特序列被按照预设映射策略映射到各所述传输层。
可选地，各所述DMRS端口组对应的CBG所包括的数据比特序列被按照第一预设顺序依次抽取预设数量个数据比特，进行串行级联得到级联数据比特序列可以至少通过如下几种可实现方式中的一种实现。
第一种可实现方式中，例如假设共3个DMRS端口组(DMRS端口组1～DMRS端口组3，当然对DMRS端口组的数量并不以此为限)，各DMRS端口组对应的CBG所包括的数据比特序列被按照预设顺序依次抽取预设数量个数据比特，可选地，不同DMRS端口组对应的CBG所包括的数据比特序列中被抽取的数据比特个数可以相同或者不同，即不同DMRS端口组所对应的预设数量可能相同或者不同；假设各所述DMRS端口组对应的CBG所包括的数据比特序列被抽取一次便被全部抽取完毕，即第一种可实现方式中的所述预设顺序即为所述第一预设顺序；进一步地，所抽取的数据比特被依次进行串行级联得到所述级联数据比特序列。可选地，所述预设顺序可以为DMRS端口组序号由小到大的顺序，或者DMRS端口组序号由大到小的顺序，或者其它预设顺序，或者网络配置的顺序，所述网络配置的顺序可以通过高层信令或者物理层信令显示的指示。
第二种可实现方式中，例如假设共3个DMRS端口组(DMRS端口组1～DMRS端口组3，当然对DMRS端口组的数量并不以此为限)，1)、首先各DMRS端口组对应的CBG 所包括的数据比特序列被按照预设顺序(以下实施例中称之为第二预设顺序，例如DMRS端口组序号由小到大的顺序，或者DMRS端口组序号由大到小的顺序，或者其它预设顺序，或者网络配置的顺序)依次抽取前预设数量个数据比特，可选地，不同DMRS端口组对应的CBG所包括的数据比特序列中被抽取的比特个数可以相同或者不同，即不同DMRS端口组所对应的预设数量可能相同或者不同，具体可参见下述部分中的Qi；假设各所述DMRS端口组对应的CBG所包括的数据比特序列被抽取一次并未被抽取完毕；2)其次，各DMRS端口组对应的CBG所包括的剩余数据比特序列(每个所述DMRS端口组对应的CBG所包括的剩余数据比特序列包括：所述DMRS端口组对应的CBG所包括的数据比特序列中被第一次抽取前预设数量个数据比特后所剩余的数据比特)被按照所述第二预设顺序依次抽取前预设数量个数据比特，以此类推，直至各所述DMRS端口组对应的CBG所包括的数据比特序列已被全部抽取时，则所抽取的各数据比特被按照先后抽取顺序依次进行串行级联得到所述级联数据比特序列，即第二种可实现方式中的多次按照所述第二预设顺序抽取数据比特的顺序即为所述第一预设顺序。当然，各所述DMRS端口组对应的CBG所包括的数据比特序列被按照第一预设顺序依次抽取预设数量个数据比特，进行串行级联得到级联数据比特序列，还可以通过其它可实现方式，本申请实施例中对此并不作限制。
可选地，本申请实施例中对“各所述DMRS端口组对应的CBG所包括的数据比特序列被按照第一预设顺序依次抽取预设数量个数据比特，进行串行级联得到级联数据比特序列”的第二种可实现方式进行详细介绍。可选地，各所述DMRS端口组对应的CBG所包括的数据比特序列被按照第一预设顺序依次抽取预设数量个数据比特，进行串行级联得到级联数据比特序列，包括：
在各所述DMRS端口组对应的CBG所包括的数据比特序列被分别抽取m次完成全部抽取时，第一数据比特序列至第m数据比特序列被依次进行串行级联得到所述级联数据比特序列；m为各所述DMRS端口组对应的CBG所包括的数据比特序列被分别抽取的总次数，且m为大于或等于2的正整数；
其中，所述第一数据比特序列为各所述DMRS端口组对应的CBG所包括的数据比特序列被按照第二预设顺序依次抽取前Qi个数据比特，进行串行级联所得到的数据比特序列；其中，Qi代表第i个DMRS端口组对应的CBG所包括的数据比特序列中被抽取的数据比特个数，1≤i≤R且i为正整数，R为各所述DMRS端口组的数量且R为大于或等于2的正整数，
Figure PCTCN2018079412-appb-000059
L i为所述第i个DMRS端口组对应的传输层数，q l为第l个所述传输层对应的调制阶数；
第k数据比特序列为各所述DMRS端口组对应的CBG所包括的剩余数据比特序列被按照所述第二预设顺序依次抽取前Qi个数据比特，进行串行级联所得到的数据比特序列；其中，2≤k≤m，所述DMRS端口组对应的CBG所包括的剩余数据比特序列包括：所述DMRS端口组对应的CBG所包括的数据比特序列中被抽取k-1次数据比特后所剩余的数据比特。
本申请实施例中，1)各所述DMRS端口组对应的CBG所包括的数据比特序列被按照第二预设顺序(例如DMRS端口组序号由小到大的顺序，或者DMRS端口组序号由大到小的顺序，或者其它预设顺序，或者网络配置的顺序)依次抽取前Qi个数据比特，进行串行级联得到第一数据比特序列；例如，假设第二预设顺序为DMRS端口组序号由小到大的顺序，则Q1代表DMRS端口组1对应的CBG所包括的数据比特序列中被抽取的数据比特个数，Q2代表DMRS端口组2对应的CBG所包括的数据比特序列中被抽取的数据比特个数，以此类推；其中，
Figure PCTCN2018079412-appb-000060
L 1为DMRS端口组1对应的传输层数，q l为DMRS端口组1对应的传输层数中第l个传输层对应的调制阶数。可选地，在传输层对应的调制方式为正交相移键控(Quadrature Phase Shift Keying，QPSK)调制时，所述传输层对应的调制阶数为2；在传输层对应的调制方式为16正交幅度调制(Quadrature Amplititude Modulation，QAM)调制时，所述传输层对应的调制阶数为4；在传输层对应的调制方式为64QAM调制时，所述传输层对应的调制阶数为6；在传输层对应的调制方式为256QAM调制时，所述传输层对应的调制阶数为8。可选地，针对一个码字，每个传输层对应的调制方式都相同。
2)若各所述DMRS端口组对应的CBG所包括的数据比特序列被分别抽取一次后并未完成全部抽取，则各所述DMRS端口组对应的CBG所包括的剩余数据比特序列被按照所述第二预设顺序依次抽取前Qi个数据比特，进行串行级联得到第二数据比特序列，其中，每个所述DMRS端口组对应的CBG所包括的剩余数据比特序列包括：所述DMRS端口组对应的CBG所包括的数据比特序列中被抽取1次数据比特后所剩余的数据比特。
3)若各所述DMRS端口组对应的CBG所包括的数据比特序列被分别抽取两次后仍然未完成全部抽取，则各所述DMRS端口组对应的CBG所包括的剩余数据比特序列被按照所述第二预设顺序依次抽取前Qi个数据比特，进行串行级联得到第三数据比特序列，其中，每个所述DMRS端口组对应的CBG所包括的剩余数据比特序列包括：所述DMRS端口组对应的CBG所包括的数据比特序列中被抽取2次数据比特后所剩余的数据比特；以此类推，直至在各所述DMRS端口组对应的CBG所包括的剩余数据比特序列(包括所述DMRS端口组对应的CBG所包括的数据比特序列中被抽取m-1次数据比特后所剩余的数据比特)被按照所述第二预设顺序依次抽取前Qi个数据比特，进行串行级联得到第m数据比特序列后，各所述DMRS端口组对应的CBG所包括的数据比特序列被全部抽取，则所述第一数据比特序列至所述第m数据比特序列被依次进行串行级联得到所述级联数据比特序列。
可选地，上述各所述DMRS端口组对应的CBG所包括的数据比特序列被按照第一预设顺序依次抽取预设数量个数据比特，进行串行级联所得到的所述级联数据比特序列中的 第s个数据比特对应第q s个CBG的第f s*Qs+a s个数据比特，以保证各DMRS端口组对应的CBG所包括的数据比特按照先后顺序映射即可以分别映射到各DMRS端口对应的传输层，进而实现干扰消除接收机在不同传输层之间进行干扰消除。其中，1≤s≤各所述DMRS端口组对应的CBG所包括的总数据比特个数，Qs代表第s个DMRS端口组对应的CBG所包括的数据比特序列中被抽取的数据比特个数，
Figure PCTCN2018079412-appb-000061
代表向下取整运算，
Figure PCTCN2018079412-appb-000062
Qt代表第t个DMRS端口组对应的CBG所包括的数据比特序列中被抽取的数据比特个数，
Figure PCTCN2018079412-appb-000063
Q0＝0。
进一步地，本申请实施例中，可选地，在上述各所述DMRS端口组对应的CBG所包括的数据比特序列被按照第一预设顺序依次抽取预设数量个数据比特，进行串行级联得到级联数据比特序列，采用上述第一种可实现方式时，所述级联数据比特序列被按照预设映射策略(如交织映射等)映射到各所述传输层，以保证每个DMRS端口组对应的CBG分别映射至各自所对应的传输层，例如DMRS端口组1对应的CBG所包括的数据比特都映射到DMRS端口组1对应的传输层(可选地，可以为一层或者多层)，DMRS端口2对应的CBG所包括的数据比特都映射到DMRS端口组2对应的传输层等。可选地，在采用上述第二种可实现方式对上述各所述DMRS端口组对应的CBG所包括的数据比特序列被按照第一预设顺序依次抽取预设数量个数据比特，进行串行级联得到级联数据比特序列时，所述级联数据比特序列被按照预设映射策略(如顺序映射等)映射到各所述传输层，以保证每个DMRS端口组对应的CBG分别映射至各自所对应的传输层。当然，在采用其它可实现方式对上述各所述DMRS端口组对应的CBG所包括的数据比特序列被按照第一预设顺序依次抽取预设数量个比特，进行串行级联得到级联数据比特序列时，所述级联数据比特序列被按照对应的预设映射策略映射到各所述传输层，以保证每个DMRS端口组对应的CBG分别映射至各自所对应的传输层，本申请实施例中对此并不作限制。
可选地，所述级联数据比特序列被按照预设映射策略映射到各所述传输层可以包括以下处理过程，例如：所述级联数据比特序列被进行时域交织、频域交织、时频交织、加扰、调制以及层映射等过程中的至少一种。当然，还可以包括其它处理过程，本申请实施例中对此并不作限制。
当然，至少一个CBG中每一个被映射至与所述一个DMRS端口组所对应的传输层还可通过其它可实现方式，本申请实施例中对此并不作限制。
可选地，考虑到本申请实施例中的网络设备和/或终端设备中预先设置有DMRS端口组与对应传输层之间的映射关系，或者通过高层消息或者物理层消息动态的获知了DMRS 端口组与对应传输层之间的映射关系，因此，上述实施例中L i(即每个DMRS端口组对应的传输层数)可以根据每个DMRS端口组与对应传输层之间的映射关系确定。可选地，上述实施例中L i也可以通过DCI指示，当然，还可通过其它方式指示每个DMRS端口组对应的传输层数，本申请实施例中对此并不作限制。
可选地，通过DCI指示每个DMRS端口组对应的传输层数可以至少包括以下几种指示方式：1)通过DCI指示总的传输层数，以及所有DMRS端口组中除任一DMRS端口组之外其余的各DMRS端口组对应的传输层数，例如，假设共两个DMRS端口组，则通过DCI指示总的传输层数以及所述两个DMRS端口组中任一DMRS端口组对应的传输层数；2)通过DCI分别指示每个DMRS端口组对应的传输层数；3)通过DCI中的天线端口指示域中的比特联合编码指示每个DMRS端口组对应的传输层，例如：通过复用DCI中的天线端口指示域中的比特，或者通过在DCI中的天线端口指示域中新增某个比特等方式来进行指示。
本申请实施例中，为了保证各所述DMRS端口组对应的CBG所包括的数据比特序列被同时抽取完毕，通过预先规定各所述DMRS端口组对应的CBG所包括的数据比特序列的长度相同，或者，可选地，通过对部分DMRS端口组对应的CBG被进行占位符填充，其中，需要占位符填充的DMRS端口组(以下实施例中称之为第j个DMRS端口组，其中，1≤j≤R)对应的CBG满足以下特征：所述第j个DMRS端口组对应的CBG所包括的数据比特序列被全部抽取完所需的次数C0小于第p个DMRS端口组对应的CBG所包括的数据比特序列被全部抽取完所需的次数Cmax，其中，第p个DMRS端口组对应的CBG所包括的数据比特序列被全部抽取完所需的次数Cmax为每个所述DMRS端口组对应的CBG所包括的数据比特序列被全部抽取完所需的次数中最大的次数，1≤p≤R。可选地，所述第j个DMRS端口组对应的CBG需要填充的占位符数目为Qj*(Cmax-C0)。
可选地，当本申请实施例中的数据传输为上行数据传输时，本申请实施例中所涉及的“抽取”以及“映射”等操作的执行主体为终端设备；当本申请实施例中的数据传输为下行数据传输时，本申请实施例中所涉及的“抽取”以及“映射”等操作的执行主体为网络设备。
本申请实施例中，所述网络设备与终端设备进行数据传输；其中，所述数据对应传输块，所述传输块被划分为至少一个编码块组CBG，所述至少一个CBG中每一个对应一个所述DMRS端口组，每个所述DMRS端口组对应的CBG所包括的数据比特序列被按照第一预设顺序依次抽取预设数量个数据比特，进行串行级联得到级联数据比特序列，以及所述级联数据比特序列被按照预设映射策略映射到各所述传输层，以保证每个DMRS端口组对应的CBG分别映射至各自所对应的传输层。可见，保证了不同DMRS端口组所发送的数据流分属不同的CBG，以便接收端能够对每个DMRS端口组对应的CBG单独译码(即能够对不同传输层上映射的数据流进行独立译码)，从而能够支持干扰消除接收机进行干扰消除。
可选的，本申请上述实施例中主要描述了针对空域(如传输层或者天线端口)上划分的CBG映射至对应传输层的过程，而对时域、频域上划分的CBG映射并没有限制和要求。若结合时域和/或频域上的划分，本申请实施例也可适用于传输块在空域划分结合时域符号和/或频域子带的划分后的一个CBG，当然，还可适用于其它情形，本申请实施例中对 此并不作限制。例如，对于按照空域划分结合时域和/或频域划分的CBG到对应物理资源的映射，可以将映射至相同时域符号和/或频域子带的CBG按照本申请上述实施例中记载的CBG到对应传输层的映射(即空域映射)过程。
需要进行说明的是，上述不同的实施例之间，对于相同或相似的概念或过程可以相互引用或结合，划分为不同的实施例仅仅是为了更清楚的说明本申请。
可选地，本申请上述实施例四至实施例六中所涉及到的CBG映射至对应传输层的过程也可以采用本申请实施例七中的映射过程(相当于DMRS端口组替换为各CBG对应的传输层组，所述传输层组是指一个CBG所映射至的传输层的集合)，具体的映射过程可参见本申请上述实施例七中的相应内容，此处不再赘述。
可选地，本申请数据传输方法实施例七，也可独立于上述实施例一至实施例六中任意实施例单独执行，并不依赖于其它实施例。例如，本申请数据传输方法实施例七中记载的关于CBG映射至对应传输层的可实现方式也可应用于其它数据传输过程中，本申请实施例中对此并不作限制。
图8为本申请网络设备实施例一的结构示意图。如图8所示，本实施例提供的网络设备80，包括：确定模块801以及传输模块802。
其中，确定模块801，用于确定解调参考信号DMRS端口组；所述DMRS端口组的个数大于等于2；
传输模块802，用于与终端设备进行数据传输；其中，所述数据对应传输块，所述传输块被划分为至少一个编码块组CBG，所述至少一个CBG中每一个对应一个所述DMRS端口组，并映射至与所述一个DMRS端口组所对应的传输层。
可选地，所述传输块被划分为至少一个CBG，包括：
所述传输块被划分为N个码块CB；其中，所述
Figure PCTCN2018079412-appb-000064
B代表所述传输块加上冗余校验位后的总比特数，c代表预设数值，
Figure PCTCN2018079412-appb-000065
代表向上取整运算；
所述N个CB被划分为与所述DMRS端口组对应的CBG。
可选地，每个所述CBG所包含的CB个数等于如下公式计算得到的数值：
Figure PCTCN2018079412-appb-000066
或者
Figure PCTCN2018079412-appb-000067
其中，B 0代表所述CBG对应的DMRS端口组所发送的数据比特数目，B s代表各所述DMRS端口组所发送的数据比特数目之和，
Figure PCTCN2018079412-appb-000068
代表向下取整运算，
Figure PCTCN2018079412-appb-000069
代表向上取整运算。
可选地，所述传输块被划分为至少一个CBG，包括：
所述传输块被划分为每个所述DMRS端口组对应的子传输块；
每个所述子传输块被分别编码，得到与所述DMRS端口组对应的CBG。
可选地，所述网络设备还包括：
通知模块，用于向所述终端设备发送通知消息，所述通知消息中携带所述DMRS端口组的配置信息。
可选地，至少一个CBG中每一个被映射至与所述一个DMRS端口组所对应的传输层，包括：
各所述DMRS端口组对应的CBG所包括的数据比特序列被按照第一预设顺序依次抽取预设数量个数据比特，进行串行级联得到级联数据比特序列；
所述级联数据比特序列被按照预设映射策略映射到各所述传输层。
可选地，所述各所述DMRS端口组对应的CBG所包括的数据比特序列被按照第一预设顺序依次抽取预设数量个数据比特，进行串行级联得到级联数据比特序列，包括：
在各所述DMRS端口组对应的CBG所包括的数据比特序列被分别抽取m次完成全部抽取时，第一数据比特序列至第m数据比特序列被依次进行串行级联得到所述级联数据比特序列；m为各所述DMRS端口组对应的CBG所包括的数据比特序列被分别抽取的总次数，且m为大于或等于2的正整数；
其中，所述第一数据比特序列为各所述DMRS端口组对应的CBG所包括的数据比特序列被按照第二预设顺序依次抽取前Qi个数据比特，进行串行级联所得到的数据比特序列，其中，Qi代表第i个DMRS端口组对应的CBG所包括的数据比特序列中被抽取的数据比特个数，1≤i≤R且i为正整数，R为各所述DMRS端口组的数量且R为大于或等于2的正整数，
Figure PCTCN2018079412-appb-000070
L i为所述第i个DMRS端口组对应的传输层数，q l为第l个所述传输层对应的调制阶数；
第k数据比特序列为各所述DMRS端口组对应的CBG所包括的剩余数据比特序列被按照所述第二预设顺序依次抽取前Qi个数据比特，进行串行级联所得到的数据比特序列；其中，2≤k≤m，所述DMRS端口组对应的CBG所包括的剩余数据比特序列包括：所述DMRS端口组对应的CBG所包括的数据比特序列中被抽取k-1次数据比特后所剩余的数据比特。
本实施例的网络设备，可以用于执行本申请上述数据传输方法实施例一至实施例三、实施例七中任意实施例的技术方案，其实现原理和技术效果类似，此处不再赘述。
图9为本申请网络设备实施例二的结构示意图。如图9所示，本实施例提供的网络设备90，包括：存储器901、处理器902、收发器903和至少一个通信总线904。
其中，通信总线904用于实现元件之间的通信连接。存储器901可能包含高速RAM存储器，也可能还包括非易失性存储NVM，例如至少一个磁盘存储器，存储器901中可以存储各种程序，用于完成各种处理功能以及实现本申请上述实施例中的方法步骤。收发器903可以为相应的具有通信功能的输出/输出接口。处理器902用于调用所述存储器901中的程序指令执行下述步骤：确定解调参考信号DMRS端口组；所述DMRS端口组的个数大于等于2。收发器903用于与终端设备进行数据传输；其中，所述数据对应传输块，所述传输块被划分为至少一个编码块组CBG，所述至少一个CBG中每一个对应一个所述DMRS端口组，并映射至与所述一个DMRS端口组所对应的传输层。
可选地，所述传输块被划分为至少一个CBG，包括：
所述传输块被划分为N个码块CB；其中，所述
Figure PCTCN2018079412-appb-000071
B代表所述传输块加上冗余校验位后的总比特数，c代表预设数值，
Figure PCTCN2018079412-appb-000072
代表向上取整运算；
所述N个CB被划分为与所述DMRS端口组对应的CBG。
可选地，每个所述CBG所包含的CB个数等于如下公式计算得到的数值：
Figure PCTCN2018079412-appb-000073
或者
Figure PCTCN2018079412-appb-000074
其中，B 0代表所述CBG对应的DMRS端口组所发送的数据比特数目，B s代表各所述DMRS端口组所发送的数据比特数目之和，
Figure PCTCN2018079412-appb-000075
代表向下取整运算，
Figure PCTCN2018079412-appb-000076
代表向上取整运算。
可选地，所述传输块被划分为至少一个CBG，包括：
所述传输块被划分为每个所述DMRS端口组对应的子传输块；
每个所述子传输块被分别编码，得到与所述DMRS端口组对应的CBG。
可选地，所述收发器903还用于：向所述终端设备发送通知消息，所述通知消息中携带所述DMRS端口组的配置信息。
可选地，至少一个CBG中每一个被映射至与所述一个DMRS端口组所对应的传输层，包括：
各所述DMRS端口组对应的CBG所包括的数据比特序列被按照第一预设顺序依次抽取预设数量个数据比特，进行串行级联得到级联数据比特序列；
所述级联数据比特序列被按照预设映射策略映射到各所述传输层。
可选地，所述各所述DMRS端口组对应的CBG所包括的数据比特序列被按照第一预设顺序依次抽取预设数量个数据比特，进行串行级联得到级联数据比特序列，包括：
在各所述DMRS端口组对应的CBG所包括的数据比特序列被分别抽取m次完成全部抽取时，第一数据比特序列至第m数据比特序列被依次进行串行级联得到所述级联数据比特序列；m为各所述DMRS端口组对应的CBG所包括的数据比特序列被分别抽取的总次数，且m为大于或等于2的正整数；
其中，所述第一数据比特序列为各所述DMRS端口组对应的CBG所包括的数据比特序列被按照第二预设顺序依次抽取前Qi个数据比特，进行串行级联所得到的数据比特序列，其中，Qi代表第i个DMRS端口组对应的CBG所包括的数据比特序列中被抽取的数据比特个数，1≤i≤R且i为正整数，R为各所述DMRS端口组的数量且R为大于或等于2的正整数，
Figure PCTCN2018079412-appb-000077
L i为所述第i个DMRS端口组对应的传输层数，q l为第l个所述传输层对应的调制阶数；
第k数据比特序列为各所述DMRS端口组对应的CBG所包括的剩余数据比特序列被按照所述第二预设顺序依次抽取前Qi个数据比特，进行串行级联所得到的数据比特序列；其中，2≤k≤m，所述DMRS端口组对应的CBG所包括的剩余数据比特序列包括：所述DMRS端口组对应的CBG所包括的数据比特序列中被抽取k-1次数据比特后所剩余的数据比特。
本实施例的网络设备，可以用于执行本申请上述数据传输方法实施例一至实施例三、实施例七中任意实施例的技术方案，其实现原理和技术效果类似，此处不再赘述。
图10为本申请终端设备实施例一的结构示意图。如图10所示，本实施例提供的终端设备100，包括：获取模块1001以及传输模块1002。
其中，获取模块1001，用于获取解调参考信号DMRS端口组的配置信息；所述DMRS端口组的个数大于等于2；
传输模块1002，用于与网络设备进行数据传输；其中，所述数据对应传输块，所述传输块被划分为至少一个编码块组CBG，所述至少一个CBG中每一个对应一个所述DMRS端口组，并映射至与所述一个DMRS端口组所对应的传输层。
可选地，所述传输块被划分为至少一个CBG，包括：
所述传输块被划分为N个码块CB；其中，所述
Figure PCTCN2018079412-appb-000078
B代表所述传输块加上冗余校验位后的总比特数，c代表预设数值，
Figure PCTCN2018079412-appb-000079
代表向上取整运算；
所述N个CB被划分为与所述DMRS端口组对应的CBG。
可选地，每个所述CBG所包含的CB个数等于如下公式计算得到的数值：
Figure PCTCN2018079412-appb-000080
或者
Figure PCTCN2018079412-appb-000081
其中，B 0代表所述CBG对应的DMRS端口组所发送的数据比特数目，B s代表各所述DMRS端口组所发送的数据比特数目之和，
Figure PCTCN2018079412-appb-000082
代表向下取整运算，
Figure PCTCN2018079412-appb-000083
代表向上取整运算。
可选地，所述传输块被划分为至少一个CBG，包括：
所述传输块被划分为每个所述DMRS端口组对应的子传输块；
每个所述子传输块被分别编码，得到与所述DMRS端口组对应的CBG。
可选地，所述获取模块具体用于：接收所述网络设备发送的通知消息，所述通知消息中携带所述DMRS端口组的配置信息。
可选地，至少一个CBG中每一个被映射至与所述一个DMRS端口组所对应的传输层，包括：
各所述DMRS端口组对应的CBG所包括的数据比特序列被按照第一预设顺序依次抽取预设数量个数据比特，进行串行级联得到级联数据比特序列；
所述级联数据比特序列被按照预设映射策略映射到各所述传输层。
可选地，所述各所述DMRS端口组对应的CBG所包括的数据比特序列被按照第一预设顺序依次抽取预设数量个数据比特，进行串行级联得到级联数据比特序列，包括：
在各所述DMRS端口组对应的CBG所包括的数据比特序列被分别抽取m次完成全部抽取时，第一数据比特序列至第m数据比特序列被依次进行串行级联得到所述级联数据比特序列；m为各所述DMRS端口组对应的CBG所包括的数据比特序列被分别抽取的总次数，且m为大于或等于2的正整数；
其中，所述第一数据比特序列为各所述DMRS端口组对应的CBG所包括的数据比特序列被按照第二预设顺序依次抽取前Qi个数据比特，进行串行级联所得到的数据比特序列，其中，Qi代表第i个DMRS端口组对应的CBG所包括的数据比特序列中被抽取的数据比特个数，1≤i≤R且i为正整数，R为各所述DMRS端口组的数量且R为大于或等于 2的正整数，
Figure PCTCN2018079412-appb-000084
L i为所述第i个DMRS端口组对应的传输层数，q l为第l个所述传输层对应的调制阶数；
第k数据比特序列为各所述DMRS端口组对应的CBG所包括的剩余数据比特序列被按照所述第二预设顺序依次抽取前Qi个数据比特，进行串行级联所得到的数据比特序列；其中，2≤k≤m，所述DMRS端口组对应的CBG所包括的剩余数据比特序列包括：所述DMRS端口组对应的CBG所包括的数据比特序列中被抽取k-1次数据比特后所剩余的数据比特。
本实施例的终端设备，可以用于执行本申请上述数据传输方法实施例一至实施例三、实施例七中任意实施例的技术方案，其实现原理和技术效果类似，此处不再赘述。
图11为本申请终端设备实施例二的结构示意图。如图11所示，本实施例提供的终端设备110，包括：存储器1101、处理器1102、收发器1103和至少一个通信总线1104。
其中，通信总线1104用于实现元件之间的通信连接。存储器1101可能包含高速RAM存储器，也可能还包括非易失性存储NVM，例如至少一个磁盘存储器，存储器1101中可以存储各种程序，用于完成各种处理功能以及实现本申请上述实施例中的方法步骤。收发器1103可以为相应的具有通信功能的输出/输出接口。处理器1102用于调用所述存储器1101中的程序指令执行下述步骤：获取解调参考信号DMRS端口组的配置信息；所述DMRS端口组的个数大于等于2。收发器1103用于与网络设备进行数据传输；其中，所述数据对应传输块，所述传输块被划分为至少一个编码块组CBG，所述至少一个CBG中每一个对应一个所述DMRS端口组，并映射至与所述一个DMRS端口组所对应的传输层。
可选地，所述传输块被划分为至少一个CBG，包括：
所述传输块被划分为N个码块CB；其中，所述
Figure PCTCN2018079412-appb-000085
B代表所述传输块加上冗余校验位后的总比特数，c代表预设数值，
Figure PCTCN2018079412-appb-000086
代表向上取整运算；
所述N个CB被划分为与所述DMRS端口组对应的CBG。
可选地，每个所述CBG所包含的CB个数等于如下公式计算得到的数值：
Figure PCTCN2018079412-appb-000087
或者
Figure PCTCN2018079412-appb-000088
其中，B 0代表所述CBG对应的DMRS端口组所发送的数据比特数目，B s代表各所述DMRS端口组所发送的数据比特数目之和，
Figure PCTCN2018079412-appb-000089
代表向下取整运算，
Figure PCTCN2018079412-appb-000090
代表向上取整运算。
可选地，所述传输块被划分为至少一个CBG，包括：
所述传输块被划分为每个所述DMRS端口组对应的子传输块；
每个所述子传输块被分别编码，得到与所述DMRS端口组对应的CBG。
可选地，所述收发器还用于：接收所述网络设备发送的通知消息，所述通知消息中携带所述DMRS端口组的配置信息；对应的，所述处理器还用于：根据所述通知消息获取所述DMRS端口组的配置信息。
可选地，至少一个CBG中每一个被映射至与所述一个DMRS端口组所对应的传输层，包括：
各所述DMRS端口组对应的CBG所包括的数据比特序列被按照第一预设顺序依次抽取预设数量个数据比特，进行串行级联得到级联数据比特序列；
所述级联数据比特序列被按照预设映射策略映射到各所述传输层。
可选地，所述各所述DMRS端口组对应的CBG所包括的数据比特序列被按照第一预设顺序依次抽取预设数量个数据比特，进行串行级联得到级联数据比特序列，包括：
在各所述DMRS端口组对应的CBG所包括的数据比特序列被分别抽取m次完成全部抽取时，第一数据比特序列至第m数据比特序列被依次进行串行级联得到所述级联数据比特序列；m为各所述DMRS端口组对应的CBG所包括的数据比特序列被分别抽取的总次数，且m为大于或等于2的正整数；
其中，所述第一数据比特序列为各所述DMRS端口组对应的CBG所包括的数据比特序列被按照第二预设顺序依次抽取前Qi个数据比特，进行串行级联所得到的数据比特序列，其中，Qi代表第i个DMRS端口组对应的CBG所包括的数据比特序列中被抽取的数据比特个数，1≤i≤R且i为正整数，R为各所述DMRS端口组的数量且R为大于或等于2的正整数，
Figure PCTCN2018079412-appb-000091
L i为所述第i个DMRS端口组对应的传输层数，q l为第l个所述传输层对应的调制阶数；
第k数据比特序列为各所述DMRS端口组对应的CBG所包括的剩余数据比特序列被按照所述第二预设顺序依次抽取前Qi个数据比特，进行串行级联所得到的数据比特序列；其中，2≤k≤m，所述DMRS端口组对应的CBG所包括的剩余数据比特序列包括：所述DMRS端口组对应的CBG所包括的数据比特序列中被抽取k-1次数据比特后所剩余的数据比特。
本实施例的终端设备，可以用于执行本申请上述数据传输方法实施例一至实施例三、实施例七中任意实施例的技术方案，其实现原理和技术效果类似，此处不再赘述。
本申请网络设备实施例三中，所述网络设备，包括：确定模块以及传输模块。可选地，所述网络设备的结构示意图参见图8所示。
其中，确定模块，用于确定传输层数；
传输模块，用于与终端设备进行数据传输；其中，所述数据对应传输块，所述传输块被根据所述传输层数映射于对应的传输层。
可选地，所述传输块被根据所述传输层数映射于对应的传输层，包括：
若所述传输层数等于1或2，所述传输块被映射到对应的传输层；
若所述传输层数等于3或4，所述传输块被划分为2个编码块组CBG，以及所述2个CBG分别被映射到不同的所述传输层。
可选地，所述网络设备还包括：
确定模块，用于根据不同DMRS端口对应的信道质量信息相差大于预设阈值，确定在所述传输层数等于3或4时划分所述传输块。
可选地，所述网络设备还包括：
发送模块，用于向所述终端设备发送分组配置消息，所述分组配置消息用于指示：在所述传输层数等于3或4时划分所述传输块。
本实施例的网络设备，可以用于执行本申请上述数据传输方法实施例四至实施例六、实施例七中任意实施例的技术方案，其实现原理和技术效果类似，此处不再赘述。
本申请网络设备实施例四中，所述网络设备，包括：存储器、处理器、收发器和至少一个通信总线。可选地，所述网络设备的结构示意图参见图9所示。
其中，通信总线用于实现元件之间的通信连接。存储器可能包含高速RAM存储器，也可能还包括非易失性存储NVM，例如至少一个磁盘存储器，存储器中可以存储各种程序，用于完成各种处理功能以及实现本申请上述实施例中的方法步骤。收发器可以为相应的具有通信功能的输出/输出接口。处理器用于调用所述存储器中的程序指令执行下述步骤：确定传输层数。收发器用于与终端设备进行数据传输；其中，所述数据对应传输块，所述传输块被根据所述传输层数映射于对应的传输层。
可选地，所述传输块被根据所述传输层数映射于对应的传输层，包括：
若所述传输层数等于1或2，所述传输块被映射到对应的传输层；
若所述传输层数等于3或4，所述传输块被划分为2个编码块组CBG，以及所述2个CBG分别被映射到不同的所述传输层。
可选地，所述处理器还用于：根据不同DMRS端口对应的信道质量信息相差大于预设阈值，确定在所述传输层数等于3或4时划分所述传输块。
可选地，所述收发器还用于：向所述终端设备发送分组配置消息，所述分组配置消息用于指示：在所述传输层数等于3或4时划分所述传输块。
本实施例的网络设备，可以用于执行本申请上述数据传输方法实施例四至实施例六、实施例七中任意实施例的技术方案，其实现原理和技术效果类似，此处不再赘述。
本申请终端设备实施例三中，所述终端设备，包括：获取模块以及传输模块。可选地，所述终端设备的结构示意图参见图10所示。
其中，获取模块，用于获取传输层数；
传输模块，用于与网络设备进行数据传输；其中，所述数据对应传输块，所述传输块被根据所述传输层数映射于对应的传输层。
可选地，所述传输块被根据所述传输层数映射于对应的传输层，包括：
若所述传输层数等于1或2，所述传输块被映射到对应的传输层；
若所述传输层数等于3或4，且分组配置消息用于指示划分所述传输块，则所述传输块被划分为2个编码块组CBG，以及所述2个CBG分别被映射到不同的所述传输层。
可选地，所述终端设备还包括：
接收模块，用于接收所述网络设备发送的所述分组配置消息。
本实施例的终端设备，可以用于执行本申请上述数据传输方法实施例四至实施例六、实施例七中任意实施例的技术方案，其实现原理和技术效果类似，此处不再赘述。
本申请终端设备实施例四中，所述终端设备，包括：存储器、处理器、收发器和至少一个通信总线。可选地，所述终端设备的结构示意图参见图11所示。
其中，通信总线用于实现元件之间的通信连接。存储器可能包含高速RAM存储器，也可能还包括非易失性存储NVM，例如至少一个磁盘存储器，存储器中可以存储各种程 序，用于完成各种处理功能以及实现本申请上述实施例中的方法步骤。收发器可以为相应的具有通信功能的输出/输出接口。处理器用于调用所述存储器中的程序指令执行下述步骤：获取传输层数。收发器用于与网络设备进行数据传输；其中，所述数据对应传输块，所述传输块被根据所述传输层数映射于对应的传输层。
可选地，所述传输块被根据所述传输层数映射于对应的传输层，包括：
若所述传输层数等于1或2，所述传输块被映射到对应的传输层；
若所述传输层数等于3或4，且分组配置消息用于指示划分所述传输块，则所述传输块被划分为2个编码块组CBG，以及所述2个CBG分别被映射到不同的所述传输层。
可选地，所述收发器还用于：接收所述网络设备发送的所述分组配置消息。
本实施例的终端设备，可以用于执行本申请上述数据传输方法实施例四至实施例六、实施例七中任意实施例的技术方案，其实现原理和技术效果类似，此处不再赘述。
本领域技术人员可以清楚地了解到，为描述的方便和简洁，仅以上述各功能模块的划分进行举例说明，实际应用中，可以根据需要而将上述功能分配由不同的功能模块完成，即将装置的内部结构划分成不同的功能模块，以完成以上描述的全部或者部分功能。上述描述的装置的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用硬件加软件功能单元的形式实现。
在上述各实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本发明实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘Solid State Disk(SSD))等。

Claims (28)

  1. 一种数据传输方法，其特征在于，包括：
    网络设备确定解调参考信号DMRS端口组；所述DMRS端口组的个数大于等于2；
    所述网络设备与终端设备进行数据传输；其中，所述数据对应传输块，所述传输块被划分为至少一个编码块组CBG，所述至少一个CBG中每一个对应一个所述DMRS端口组，并映射至与所述一个DMRS端口组所对应的传输层。
  2. 根据权利要求1所述的方法，其特征在于，所述传输块被划分为至少一个CBG，包括：
    所述传输块加上冗余校验位后被划分为N个码块CB；其中，所述
    Figure PCTCN2018079412-appb-100001
    B代表所述传输块加上所述冗余校验位后的总比特数，c代表预设数值，
    Figure PCTCN2018079412-appb-100002
    代表向上取整运算；
    所述N个CB被划分为与所述DMRS端口组对应的CBG。
  3. 根据权利要求2所述的方法，其特征在于，每个所述CBG所包含的CB个数等于如下公式计算得到的数值：
    Figure PCTCN2018079412-appb-100003
    或者
    Figure PCTCN2018079412-appb-100004
    其中，B 0代表所述CBG对应的DMRS端口组所发送的数据比特数目，B s代表各所述DMRS端口组所发送的数据比特数目之和，
    Figure PCTCN2018079412-appb-100005
    代表向下取整运算，
    Figure PCTCN2018079412-appb-100006
    代表向上取整运算。
  4. 根据权利要求1所述的方法，其特征在于，所述传输块被划分为至少一个CBG，包括：
    所述传输块被划分为每个所述DMRS端口组对应的子传输块；
    每个所述子传输块被分别编码，得到与所述DMRS端口组对应的CBG。
  5. 根据权利要求1-4中任一项所述的方法，其特征在于，所述方法还包括：
    所述网络设备向所述终端设备发送通知消息，所述通知消息中携带所述DMRS端口组的配置信息。
  6. 根据权利要求1-5中任一项所述的方法，其特征在于，至少一个CBG中每一个被映射至与所述一个DMRS端口组所对应的传输层，包括：
    各所述DMRS端口组对应的CBG所包括的数据比特序列被按照第一预设顺序依次抽取预设数量个数据比特，进行串行级联得到级联数据比特序列；
    所述级联数据比特序列被按照预设映射策略映射到各所述传输层。
  7. 根据权利要求6所述的方法，其特征在于，所述各所述DMRS端口组对应的CBG所包括的数据比特序列被按照第一预设顺序依次抽取预设数量个数据比特，进行串行级联得到级联数据比特序列，包括：
    在各所述DMRS端口组对应的CBG所包括的数据比特序列被分别抽取m次完成全部抽取时，第一数据比特序列至第m数据比特序列被依次进行串行级联得到所述级联数据比特序列；m为各所述DMRS端口组对应的CBG所包括的数据比特序列被分别抽取的总次数，且m为大于或等于2的正整数；
    其中，所述第一数据比特序列为各所述DMRS端口组对应的CBG所包括的数据比特序列被按照第二预设顺序依次抽取前Qi个数据比特，进行串行级联所得到的数据比特序 列，其中，Qi代表第i个DMRS端口组对应的CBG所包括的数据比特序列中被抽取的数据比特个数，1≤i≤R且i为正整数，R为各所述DMRS端口组的数量且R为大于或等于2的正整数，
    Figure PCTCN2018079412-appb-100007
    L i为所述第i个DMRS端口组对应的传输层数，q l为第l个所述传输层对应的调制阶数；
    第k数据比特序列为各所述DMRS端口组对应的CBG所包括的剩余数据比特序列被按照所述第二预设顺序依次抽取前Qi个数据比特，进行串行级联所得到的数据比特序列；其中，2≤k≤m，所述DMRS端口组对应的CBG所包括的剩余数据比特序列包括：所述DMRS端口组对应的CBG所包括的数据比特序列中被抽取k-1次数据比特后所剩余的数据比特。
  8. 一种数据传输方法，其特征在于，包括：
    终端设备获取解调参考信号DMRS端口组的配置信息；所述DMRS端口组的个数大于等于2；
    所述终端设备与网络设备进行数据传输；其中，所述数据对应传输块，所述传输块被划分为至少一个编码块组CBG，所述至少一个CBG中每一个对应一个所述DMRS端口组，并映射至与所述一个DMRS端口组所对应的传输层。
  9. 根据权利要求8所述的方法，其特征在于，所述传输块被划分为至少一个CBG，包括：
    所述传输块加上冗余校验位后被划分为N个码块CB；其中，所述
    Figure PCTCN2018079412-appb-100008
    B代表所述传输块加上所述冗余校验位后的总比特数，c代表预设数值，
    Figure PCTCN2018079412-appb-100009
    代表向上取整运算；
    所述N个CB被划分为与所述DMRS端口组对应的CBG。
  10. 根据权利要求9所述的方法，其特征在于，每个所述CBG所包含的CB个数等于如下公式计算得到的数值：
    Figure PCTCN2018079412-appb-100010
    或者
    Figure PCTCN2018079412-appb-100011
    其中，B 0代表所述CBG对应的DMRS端口组所发送的数据比特数目，B s代表各所述DMRS端口组所发送的数据比特数目之和，
    Figure PCTCN2018079412-appb-100012
    代表向下取整运算，
    Figure PCTCN2018079412-appb-100013
    代表向上取整运算。
  11. 根据权利要求8所述的方法，其特征在于，所述传输块被划分为至少一个CBG，包括：
    所述传输块被划分为每个所述DMRS端口组对应的子传输块；
    每个所述子传输块被分别编码，得到与所述DMRS端口组对应的CBG。
  12. 根据权利要求8-11中任一项所述的方法，其特征在于，所述终端设备获取解调参考信号DMRS端口组的配置信息，包括：
    所述终端设备接收所述网络设备发送的通知消息，所述通知消息中携带所述DMRS端口组的配置信息。
  13. 根据权利要求8-12中任一项所述的方法，其特征在于，至少一个CBG中每一个被映射至与所述一个DMRS端口组所对应的传输层，包括：
    各所述DMRS端口组对应的CBG所包括的数据比特序列被按照第一预设顺序依次抽取预设数量个数据比特，进行串行级联得到级联数据比特序列；
    所述级联数据比特序列被按照预设映射策略映射到各所述传输层。
  14. 根据权利要求13所述的方法，其特征在于，所述各所述DMRS端口组对应的CBG所包括的数据比特序列被按照第一预设顺序依次抽取预设数量个数据比特，进行串行级联得到级联数据比特序列，包括：
    在各所述DMRS端口组对应的CBG所包括的数据比特序列被分别抽取m次完成全部抽取时，第一数据比特序列至第m数据比特序列被依次进行串行级联得到所述级联数据比特序列；m为各所述DMRS端口组对应的CBG所包括的数据比特序列被分别抽取的总次数，且m为大于或等于2的正整数；
    其中，所述第一数据比特序列为各所述DMRS端口组对应的CBG所包括的数据比特序列被按照第二预设顺序依次抽取前Qi个数据比特，进行串行级联所得到的数据比特序列，其中，Qi代表第i个DMRS端口组对应的CBG所包括的数据比特序列中被抽取的数据比特个数，1≤i≤R且i为正整数，R为各所述DMRS端口组的数量且R为大于或等于2的正整数，
    Figure PCTCN2018079412-appb-100014
    L i为所述第i个DMRS端口组对应的传输层数，q l为第l个所述传输层对应的调制阶数；
    第k数据比特序列为各所述DMRS端口组对应的CBG所包括的剩余数据比特序列被按照所述第二预设顺序依次抽取前Qi个数据比特，进行串行级联所得到的数据比特序列；其中，2≤k≤m，所述DMRS端口组对应的CBG所包括的剩余数据比特序列包括：所述DMRS端口组对应的CBG所包括的数据比特序列中被抽取k-1次数据比特后所剩余的数据比特。
  15. 一种网络设备，其特征在于，包括：
    确定模块，用于确定解调参考信号DMRS端口组；所述DMRS端口组的个数大于等于2；
    传输模块，用于与终端设备进行数据传输；其中，所述数据对应传输块，所述传输块被划分为至少一个编码块组CBG，所述至少一个CBG中每一个对应一个所述DMRS端口组，并映射至与所述一个DMRS端口组所对应的传输层。
  16. 根据权利要求15所述的网络设备，其特征在于，所述传输块被划分为至少一个CBG，包括：
    所述传输块加上冗余校验位后被划分为N个码块CB；其中，所述
    Figure PCTCN2018079412-appb-100015
    B代表所述传输块加上所述冗余校验位后的总比特数，c代表预设数值，
    Figure PCTCN2018079412-appb-100016
    代表向上取整运算；
    所述N个CB被划分为与所述DMRS端口组对应的CBG。
  17. 根据权利要求16所述的网络设备，其特征在于，每个所述CBG所包含的CB个数等于如下公式计算得到的数值：
    Figure PCTCN2018079412-appb-100017
    或者
    Figure PCTCN2018079412-appb-100018
    其中，B 0代表所述CBG对应的DMRS端口组所发送的数据比特数目，B s代表各所 述DMRS端口组所发送的数据比特数目之和，
    Figure PCTCN2018079412-appb-100019
    代表向下取整运算，
    Figure PCTCN2018079412-appb-100020
    代表向上取整运算。
  18. 根据权利要求15所述的网络设备，其特征在于，所述传输块被划分为至少一个CBG，包括：
    所述传输块被划分为每个所述DMRS端口组对应的子传输块；
    每个所述子传输块被分别编码，得到与所述DMRS端口组对应的CBG。
  19. 根据权利要求15-18中任一项所述的网络设备，其特征在于，所述网络设备还包括：
    通知模块，用于向所述终端设备发送通知消息，所述通知消息中携带所述DMRS端口组的配置信息。
  20. 根据权利要求15-19中任一项所述的网络设备，其特征在于，至少一个CBG中每一个被映射至与所述一个DMRS端口组所对应的传输层，包括：
    各所述DMRS端口组对应的CBG所包括的数据比特序列被按照第一预设顺序依次抽取预设数量个数据比特，进行串行级联得到级联数据比特序列；
    所述级联数据比特序列被按照预设映射策略映射到各所述传输层。
  21. 根据权利要求20所述的网络设备，其特征在于，所述各所述DMRS端口组对应的CBG所包括的数据比特序列被按照第一预设顺序依次抽取预设数量个数据比特，进行串行级联得到级联数据比特序列，包括：
    在各所述DMRS端口组对应的CBG所包括的数据比特序列被分别抽取m次完成全部抽取时，第一数据比特序列至第m数据比特序列被依次进行串行级联得到所述级联数据比特序列；m为各所述DMRS端口组对应的CBG所包括的数据比特序列被分别抽取的总次数，且m为大于或等于2的正整数；
    其中，所述第一数据比特序列为各所述DMRS端口组对应的CBG所包括的数据比特序列被按照第二预设顺序依次抽取前Qi个数据比特，进行串行级联所得到的数据比特序列，其中，Qi代表第i个DMRS端口组对应的CBG所包括的数据比特序列中被抽取的数据比特个数，1≤i≤R且i为正整数，R为各所述DMRS端口组的数量且R为大于或等于2的正整数，
    Figure PCTCN2018079412-appb-100021
    L i为所述第i个DMRS端口组对应的传输层数，q l为第l个所述传输层对应的调制阶数；
    第k数据比特序列为各所述DMRS端口组对应的CBG所包括的剩余数据比特序列被按照所述第二预设顺序依次抽取前Qi个数据比特，进行串行级联所得到的数据比特序列；其中，2≤k≤m，所述DMRS端口组对应的CBG所包括的剩余数据比特序列包括：所述DMRS端口组对应的CBG所包括的数据比特序列中被抽取k-1次数据比特后所剩余的数据比特。
  22. 一种终端设备，其特征在于，包括：
    获取模块，用于获取解调参考信号DMRS端口组的配置信息；所述DMRS端口组的 个数大于等于2；
    传输模块，用于与网络设备进行数据传输；其中，所述数据对应传输块，所述传输块被划分为至少一个编码块组CBG，所述至少一个CBG中每一个对应一个所述DMRS端口组，并映射至与所述一个DMRS端口组所对应的传输层。
  23. 根据权利要求22所述的终端设备，其特征在于，所述传输块被划分为至少一个CBG，包括：
    所述传输块加上冗余校验位后被划分为N个码块CB；其中，所述
    Figure PCTCN2018079412-appb-100022
    B代表所述传输块加上所述冗余校验位后的总比特数，c代表预设数值，
    Figure PCTCN2018079412-appb-100023
    代表向上取整运算；
    所述N个CB被划分为与所述DMRS端口组对应的CBG。
  24. 根据权利要求23所述的终端设备，其特征在于，每个所述CBG所包含的CB个数等于如下公式计算得到的数值：
    Figure PCTCN2018079412-appb-100024
    或者
    Figure PCTCN2018079412-appb-100025
    其中，B 0代表所述CBG对应的DMRS端口组所发送的数据比特数目，B s代表各所述DMRS端口组所发送的数据比特数目之和，
    Figure PCTCN2018079412-appb-100026
    代表向下取整运算，
    Figure PCTCN2018079412-appb-100027
    代表向上取整运算。
  25. 根据权利要求22所述的终端设备，其特征在于，所述传输块被划分为至少一个CBG，包括：
    所述传输块被划分为每个所述DMRS端口组对应的子传输块；
    每个所述子传输块被分别编码，得到与所述DMRS端口组对应的CBG。
  26. 根据权利要求22-25中任一项所述的终端设备，其特征在于，所述获取模块具体用于：接收所述网络设备发送的通知消息，所述通知消息中携带所述DMRS端口组的配置信息。
  27. 根据权利要求22-26中任一项所述的终端设备，其特征在于，至少一个CBG中每一个被映射至与所述一个DMRS端口组所对应的传输层，包括：
    各所述DMRS端口组对应的CBG所包括的数据比特序列被按照第一预设顺序依次抽取预设数量个数据比特，进行串行级联得到级联数据比特序列；
    所述级联数据比特序列被按照预设映射策略映射到各所述传输层。
  28. 根据权利要求27所述的终端设备，其特征在于，所述各所述DMRS端口组对应的CBG所包括的数据比特序列被按照第一预设顺序依次抽取预设数量个数据比特，进行串行级联得到级联数据比特序列，包括：
    在各所述DMRS端口组对应的CBG所包括的数据比特序列被分别抽取m次完成全部抽取时，第一数据比特序列至第m数据比特序列被依次进行串行级联得到所述级联数据比特序列；m为各所述DMRS端口组对应的CBG所包括的数据比特序列被分别抽取的总次数，且m为大于或等于2的正整数；
    其中，所述第一数据比特序列为各所述DMRS端口组对应的CBG所包括的数据比特序列被按照第二预设顺序依次抽取前Qi个数据比特，进行串行级联所得到的数据比特序列，其中，Qi代表第i个DMRS端口组对应的CBG所包括的数据比特序列中被抽取的数据比特个数，1≤i≤R且i为正整数，R为各所述DMRS端口组的数量且R为大于或等于 2的正整数，
    Figure PCTCN2018079412-appb-100028
    L i为所述第i个DMRS端口组对应的传输层数，q l为第l个所述传输层对应的调制阶数；
    第k数据比特序列为各所述DMRS端口组对应的CBG所包括的剩余数据比特序列被按照所述第二预设顺序依次抽取前Qi个数据比特，进行串行级联所得到的数据比特序列；其中，2≤k≤m，所述DMRS端口组对应的CBG所包括的剩余数据比特序列包括：所述DMRS端口组对应的CBG所包括的数据比特序列中被抽取k-1次数据比特后所剩余的数据比特。
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