WO2021031982A1 - 一种数据发送方法、数据接收方法及装置 - Google Patents

一种数据发送方法、数据接收方法及装置 Download PDF

Info

Publication number
WO2021031982A1
WO2021031982A1 PCT/CN2020/109015 CN2020109015W WO2021031982A1 WO 2021031982 A1 WO2021031982 A1 WO 2021031982A1 CN 2020109015 W CN2020109015 W CN 2020109015W WO 2021031982 A1 WO2021031982 A1 WO 2021031982A1
Authority
WO
WIPO (PCT)
Prior art keywords
precoding
data
data channel
channel
resource block
Prior art date
Application number
PCT/CN2020/109015
Other languages
English (en)
French (fr)
Inventor
郭文婷
向铮铮
卢磊
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2021031982A1 publication Critical patent/WO2021031982A1/zh

Links

Images

Classifications

    • 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
    • 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
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting

Definitions

  • the embodiments of the present application relate to the field of communications, and in particular, to a data sending method, data receiving method and device.
  • MIMO Multiple-Input Multiple-Output
  • PRG precoding resource block bundling group
  • the precoding granularity of NR downlink configuration is ⁇ 2RB, 4RB, wideband ⁇ , which is mainly suitable for the downlink frame structure, that is, all frequency domain resources in the data channel bandwidth are coded with the same precoding matrix.
  • two RB or 4 RBs are divided into PRG units for precoding.
  • the precoding scheme of the NR downlink is not suitable for the frame structure on the sidelink. Performing precoding in side-line communication according to the NR downlink precoding scheme may reduce transmission reliability.
  • the embodiments of the present application provide a data sending method, a data receiving method, and an apparatus, which perform precoding according to the frame structure of the side link to improve the reliability of data transmission on the side link.
  • a data transmission method including: a first terminal device precoding data on a data channel according to a first precoding granularity or a second precoding granularity to obtain data to be transmitted, wherein the first The precoding granularity is a subchannel, and the second precoding granularity is smaller than a subchannel; the first terminal device may send the data to be sent to the second terminal device.
  • a precoding granularity different from the NR downlink configuration is configured according to the frame structure of the side link, for example, the first precoding granularity and the second precoding granularity.
  • the precoding resource block group can be divided according to the first precoding granularity and the second precoding granularity, which can improve the transmission reliability on the side link. For example, after dividing the PRG according to the granularity of sub-channels, one sub-channel is pre-coded as a PRG, that is, the data mapped on the same sub-channel is pre-coded using the same pre-coding matrix, and cross-sub-channel pre-coding is avoided as much as possible.
  • the precoding granularity of the subchannel can be configured according to the bandwidth of the subchannel, and the PRG can be divided into a granularity smaller than the subchannel for precoding. It is not limited to the precoding granularity of the NR downlink configuration.
  • the frame structure of the side link provides higher configuration flexibility.
  • the data channel occupies N subchannels, where N is an integer greater than 1, and the first terminal device precodes the data on the data channel according to the first precoding granularity, including: according to the first precoding granularity , The first part of the data channel is divided into N-1 precoding resource block groups and the first resource region; the first resource region is the part where the frequency domain of the first subchannel and the control channel do not overlap, and the first subchannel is among the N subchannels The sub-channel occupied by the control channel; use P precoding matrices to precode the data on N-1 precoding resource block groups, where P is a positive integer greater than or equal to 1 and less than or equal to N-1; in addition, the first A resource area is divided into Y precoding resource block groups, the resource blocks contained in any one of the Y precoding resource block groups are continuous, and the Y precoding resources are precoded using X precoding matrices The data on the block group is pre-coded; Y is an integer greater than or
  • the first part of the data channel is the part of the data channel that does not overlap with the control channel in the frequency domain and has time domain overlap; the second part of the data channel is the part of the data channel that does not overlap with the control channel in the time domain but has frequency domain overlap.
  • the precoding resource block group is divided at the granularity of subchannels, and cross-subchannel precoding does not occur, which improves transmission reliability.
  • continuous resource blocks whose frequency domain width is not enough for sub-channels can also be used as precoding resource block groups to perform precoding independently, which can also avoid cross-subchannel precoding and improve transmission reliability.
  • the data channel occupies one subchannel
  • the first terminal device precodes the data on the data channel according to the first precoding granularity, including: dividing the first part of the data channel into S precoding resource block groups , The resource blocks contained in any one of the S precoding resource block groups are continuous, and T precoding matrices are used to precode the data on the S precoding resource block groups; S is greater than An integer equal to 1, and T is an integer greater than or equal to 1 and less than or equal to S; the second part of the data channel is a precoding resource block group, which uses a precoding matrix to precode data on a precoding resource block group ;
  • the first part of the data channel is the part of the data channel that does not overlap with the control channel in the frequency domain and has time domain overlap;
  • the second part of the data channel is the part of the data channel that does not overlap with the control channel in the time domain but has frequency domain overlap section.
  • the precoding resource block group is divided at the granularity of subchannels, and cross-subchannel precoding does not occur, which improves transmission reliability.
  • continuous resource blocks whose frequency domain width is not enough for sub-channels can also be used as precoding resource block groups to perform precoding independently, which can also avoid cross-subchannel precoding and improve transmission reliability.
  • the data channel occupies M subchannels, M is an integer greater than or equal to 1, each subchannel includes K resource blocks, the second precoding granularity is Q resource blocks, and Q is an integer less than K,
  • the first terminal device precoding data on the data channel according to the second precoding granularity includes:
  • the data channel is divided into Precoding resource block groups, using R precoding matrix pairs Data on the precoding resource block groups are precoded; R is greater than or equal to 1 and less than or equal to The integer.
  • the data channel as a whole is divided into precoding resource block groups with a granularity smaller than that of the subchannels. It is not only limited to the precoding granularity of NR downlink configuration, but is more flexible, and is suitable for sidelink frames. structure.
  • the number of resource blocks included in the last precoding resource block group in each precoding resource block group is the number of resource blocks included in the last precoding resource block group in each precoding resource block group.
  • the data channel is divided into precoding resource block groups as a whole.
  • the number of resource blocks included in the last precoding resource block group is less than Q .
  • the number of resource blocks included in all precoding resource block groups is Q.
  • the data channel occupies M subchannels, M is an integer greater than 1, each subchannel includes K resource blocks, the second precoding granularity is Q resource blocks, and Q is an integer less than K;
  • a terminal device precoding data on the data channel according to the second precoding granularity includes:
  • the subchannels are sequentially divided into Precoding resource block groups, using L precoding matrix pairs Data on the precoding resource block groups are precoded; L is greater than or equal to 1 and less than or equal to The integer.
  • the precoding resource block group is divided at a granularity smaller than that of the subchannel for each subchannel occupied by the data channel, which is not only limited to the precoding granularity of NR downlink configuration, but is more flexible, and is suitable for side-chain chains.
  • Road frame structure is not only limited to the precoding granularity of NR downlink configuration, but is more flexible, and is suitable for side-chain chains.
  • the number of resource blocks included in the last precoding resource block group in each precoding resource block group is equal to
  • a precoding resource block group is independently divided for each subchannel occupied by a data channel.
  • the number of resource blocks occupied by the subchannel cannot be evenly divided by the precoding granularity Q
  • the number of resource blocks included in the last precoding resource block group divided on the subchannel is less than Q.
  • the number of resource blocks included in the precoding resource block group divided on the subchannel is Q.
  • the data channel occupies M sub-channels, M is an integer greater than or equal to 1, the sub-channel includes K resource blocks, the second precoding granularity is Q resource blocks, Q is an integer less than K,
  • a terminal device precoding data on the data channel according to the second precoding granularity includes:
  • the first part of the data channel is divided into Precoding resource block groups; using D precoding matrix pairs Data on a precoding resource block group is precoded; X is the number of resource blocks occupied by the control channel, and D is greater than or equal to 1 and less than or equal to Integer; starting from the frequency domain start resource block of the second part of the data channel, according to the second precoding granularity, the second part of the data channel is divided into Precoding resource block groups, using W precoding matrix pairs
  • W is greater than or equal to 1 and less than or equal to Among them, the first part of the data channel is the part of the data channel that does not overlap with the control channel in the frequency domain and has time domain overlap; the second part of the data channel is the part of the data channel that does not overlap with the control channel in the time domain but has frequency domain overlap.
  • the first part of the data channel as a whole is divided into the precoding resource block group with a granularity smaller than the subchannel
  • the second part of the data channel as a whole is divided into the precoding resource block group with a granularity smaller than the subchannel. Only limited to the precoding granularity of the NR downlink configuration, it is more flexible and is suitable for the frame structure of the side link.
  • the number of resource blocks included in the last precoding resource block group in each precoding resource block group is The number of resource blocks included in the last precoding resource block group in each precoding resource block group is
  • a precoding resource block group is independently divided for each subchannel occupied by a data channel.
  • the number of resource blocks occupied by the subchannel cannot be evenly divided by the precoding granularity Q
  • the number of resource blocks included in the last precoding resource block group divided on the subchannel is less than Q.
  • the number of resource blocks included in the precoding resource block group divided on the subchannel is Q.
  • the data channel occupies M sub-channels, M is an integer greater than 1, each sub-channel includes K resource blocks, the second precoding granularity is Q resource blocks, Q is an integer less than K,
  • a terminal device precoding data on the data channel according to the second precoding granularity includes: starting from the frequency domain start resource block of the first subchannel occupied by the first part of the data channel, and according to the second precoding granularity, the data channel
  • the first sub-channel occupied by the first part is divided into Precoding resource block groups, using G precoding matrix pairs
  • the data on the precoding resource block groups are precoded;
  • the first subchannel is the subchannel occupied by the control channel among the M subchannels;
  • G is greater than or equal to 1 and less than or equal to
  • each second sub-channel occupied by the first part of the data channel is divided into First precoding resource block group, using F precoding matrix pairs
  • the data on the first precoding resource block group is precoded;
  • the second subchannel is the subchannel
  • each subchannel occupied by the first part of the data channel as a whole is divided into precoding resource block groups with a granularity smaller than that of the subchannels, and each subchannel occupied by the second part of the data channel is taken as a whole to be less than
  • the granularity of subchannels is divided into precoding resource block groups, not only limited to the precoding granularity of NR downlink configuration, but also more flexible, which is suitable for the frame structure of the side link.
  • the number of resource blocks included in the last precoding resource block group in each precoding resource block group is equal to The number of resource blocks included in the last precoding resource block group in the first precoding resource block group is equal to The number of resource blocks included in the last precoding resource block group in the second precoding resource block group is
  • a precoding resource block group is independently divided for each subchannel occupied by a data channel.
  • the number of resource blocks occupied by the subchannel cannot be evenly divided by the precoding granularity Q
  • the number of resource blocks included in the last precoding resource block group divided on the subchannel is less than Q.
  • the number of resource blocks included in the precoding resource block group divided on the subchannel is Q.
  • data channels in the same resource pool are pre-coded at the first precoding granularity or the second precoding granularity.
  • the data channels in the same resource pool are configured with the same precoding granularity, and either all adopt a wideband precoding scheme, that is, all precoding is performed at the first precoding granularity; or both Narrowband precoding schemes are all precoding at the second precoding granularity.
  • the first precoding granularity or the second precoding granularity is configured by the network side through radio resource control RRC signaling.
  • a data receiving method including: a second terminal device receives data from a first terminal device, and decodes the data according to a first precoding granularity or a second precoding granularity to obtain the first terminal
  • the first precoding granularity is a subchannel
  • the second precoding granularity is smaller than the subchannel
  • the data channel between the first terminal device and the second terminal device occupies N sub-channels, where N is an integer greater than 1, and the second terminal device is based on the first precoding granularity or the second precoding granularity
  • Decoding the data includes: according to the first precoding granularity, the first part of the data channel is divided into N-1 data groups and a first resource region; the first resource region is that the frequency domain of the first subchannel and the control channel do not overlap
  • the first sub-channel is the sub-channel occupied by the control channel among the N sub-channels; the data on the N-1 data groups are decoded using P precoding matrices, where P is greater than or equal to 1 and less than or equal to N- A positive integer of 1;
  • the first resource area is divided into Y data groups, the resource blocks contained in any data group in the Y data groups are continuous, and the data on the Y data groups are processed by X precoding matrices Decoding; Y is an integer greater than or equal to 1, X is
  • the data channel between the first terminal device and the second terminal device occupies one subchannel, and the second terminal device decodes the data according to the first precoding granularity or the second precoding granularity, Including: the first part of the data channel is divided into S data groups, the resource blocks contained in any one of the S data groups are continuous, and the data on the S data groups are decoded by using T precoding matrices; S Is an integer greater than or equal to 1, and T is an integer greater than or equal to 1 and less than or equal to S; the second part of the data channel is a data group, and a precoding matrix is used to decode the data on a data group; among them, the data channel
  • the first part is the part of the data channel that does not overlap with the control channel in the frequency domain and has time domain overlap; the second part of the data channel is the part of the data channel that does not overlap with the control channel in the time domain but has frequency domain overlap.
  • the data channel between the first terminal device and the second terminal device occupies M subchannels, where M is an integer greater than or equal to 1, each subchannel includes K resource blocks, and the second precoding granularity is Q resource blocks, Q is an integer less than K, and the second terminal device decodes the data according to the first precoding granularity or the second precoding granularity, including:
  • the data channel is divided into Data sets, using R precoding matrix pairs
  • R is greater than or equal to 1 and less than or equal to The integer.
  • the data channel between the first terminal device and the second terminal device occupies M subchannels, where M is an integer greater than 1, each subchannel includes K resource blocks, and the second precoding granularity is Q Resource blocks, Q is an integer less than K; the first terminal device decodes the data according to the second precoding granularity, including:
  • the subchannels are sequentially divided into Data sets, using L precoding matrix pairs
  • L is greater than or equal to 1 and less than or equal to The integer.
  • the number of resource blocks included in the last data group in each data group is equal to
  • the data channel between the first terminal device and the second terminal device occupies M subchannels, M is an integer greater than or equal to 1, the subchannel includes K resource blocks, and the second precoding granularity is Q Resource block, Q is an integer less than K, and the second terminal device decodes the data according to the first precoding granularity or the second precoding granularity, including: starting from the frequency domain start resource block of the first part of the data channel, according to The second precoding granularity, the first part of the data channel is divided into Data sets; using D precoding matrix pairs The data on each data group is decoded; X is the number of resource blocks occupied by the control channel, and D is greater than or equal to 1 and less than or equal to Integer; starting from the frequency domain start resource block of the second part of the data channel, according to the second precoding granularity, the second part of the data channel is divided into Data sets, using W precoding matrix pairs The data on each data group is decoded, W is greater than or equal
  • the number of resource blocks included in the last data group in each data group is The number of resource blocks included in the last data group in each data group is
  • the data channel occupies M sub-channels, M is an integer greater than 1, each sub-channel includes K resource blocks, the second precoding granularity is Q resource blocks, Q is an integer less than K,
  • a terminal device decoding the data according to the second precoding granularity includes:
  • the first subchannel occupied by the first part of the data channel is divided into Data sets, using G precoding matrix pairs
  • the data on the data groups are decoded; the first subchannel is the subchannel occupied by the control channel in the M subchannels; G is greater than or equal to 1 and less than or equal to According to the second precoding granularity, each second sub-channel occupied by the first part of the data channel is divided into First data group, using F precoding matrix pairs
  • the data on the first data group is decoded; the second subchannel is the subchannel except the first subchannel among the subchannels occupied by the first part of the data channel; F is greater than or equal to 1 and less than or equal to According to the second precoding granularity, each sub-channel occupied by the second part of the data channel is divided into A second data group, using H precoding matrix pairs The data on the second data group is decoded; H is greater
  • the number of resource blocks included in the last data group in each data group is equal to The number of resource blocks in the last data group in the first data group is equal to The number of resource blocks included in the last data group in the second data group is
  • a first terminal device including: a processing unit, configured to precode data on a data channel according to a first precoding granularity or a second precoding granularity to obtain data to be sent, wherein, The first precoding granularity is a subchannel, and the second precoding granularity is smaller than a subchannel; the communication unit is configured to send the data to be sent to the second terminal device.
  • one sub-channel is used as a PRG for precoding, that is, the data mapped on the same sub-channel is pre-coded using the same pre-coding matrix, and cross-sub-channel pre-coding is avoided as much as possible , That is, avoid using the same precoding matrix for precoding for data on adjacent subchannels, and improve transmission reliability.
  • the precoding granularity of the subchannel can be configured according to the bandwidth of the subchannel, and the PRG can be divided into a granularity smaller than the subchannel for precoding. This is not only limited to the precoding granularity of the NR downlink configuration, but also Flexible, applicable to the frame structure of the side link.
  • the data channel occupies N subchannels, and N is an integer greater than 1.
  • the first part of the data channel is divided into N-1 precoding resource block groups and the first resource region;
  • the first resource area is the part where the frequency domain of the first subchannel and the control channel do not overlap, and the first subchannel is the subchannel occupied by the control channel among the N subchannels;
  • the processing unit is also used to use P precoding matrices to pair N- Data on one precoding resource block group is precoded, and P is a positive integer greater than or equal to 1 and less than or equal to N-1;
  • the first resource region is divided into Y precoding resource block groups, and Y precoding resource block groups
  • the resource blocks contained in any precoding resource block group in the coding resource block group are continuous, and the data on the Y precoding resource block groups are precoded using X precoding matrices;
  • Y is an integer greater than or equal to 1
  • X is an integer greater than or equal to 1
  • the first part of the data channel is the part of the data channel that does not overlap with the control channel in the frequency domain and has time domain overlap; the second part of the data channel is the part of the data channel that does not overlap with the control channel in the time domain but has frequency domain overlap.
  • the precoding resource block group is divided at the granularity of subchannels, and cross-subchannel precoding does not occur, which improves transmission reliability.
  • continuous resource blocks whose frequency domain width is not enough for sub-channels can also be used as precoding resource block groups to perform precoding independently, which can also avoid cross-subchannel precoding and improve transmission reliability.
  • the data channel occupies one sub-channel
  • the first part of the data channel is divided into S precoding resource block groups, and any one of the S precoding resource block groups contains resource blocks
  • the processing unit is also used to pre-code data on S pre-coding resource block groups by using T pre-coding matrices; S is an integer greater than or equal to 1, and T is greater than or equal to 1 and less than or equal to S
  • the second part of the data channel is a precoding resource block group, the processing unit is also used to use a precoding matrix to precode data on a precoding resource block group; wherein, the first part of the data channel is the data channel
  • the second part of the data channel is the part of the data channel that does not overlap with the control channel in the time domain and overlaps in the frequency domain.
  • the precoding resource block group is divided at the granularity of subchannels, and cross-subchannel precoding does not occur, which improves transmission reliability.
  • continuous resource blocks whose frequency domain width is not enough for sub-channels can also be used as precoding resource block groups to perform precoding independently, which can also avoid cross-subchannel precoding and improve transmission reliability.
  • the data channel occupies M subchannels, M is an integer greater than or equal to 1, each subchannel includes K resource blocks, the second precoding granularity is Q resource blocks, and Q is an integer less than K,
  • the data channel is divided into Precoding resource block groups and processing units are also used to use R precoding matrix pairs Data on the precoding resource block groups are precoded; R is greater than or equal to 1 and less than or equal to The integer.
  • the data channel as a whole is divided into precoding resource block groups with a granularity smaller than that of the subchannels. It is not only limited to the precoding granularity of NR downlink configuration, but is more flexible, and is suitable for sidelink frames. structure.
  • the number of resource blocks included in the last precoding resource block group in each precoding resource block group is the number of resource blocks included in the last precoding resource block group in each precoding resource block group.
  • the data channel is divided into precoding resource block groups as a whole.
  • the number of resource blocks included in the last precoding resource block group is less than Q .
  • the number of resource blocks included in all precoding resource block groups is Q.
  • the data channel occupies M sub-channels, M is an integer greater than 1, each sub-channel includes K resource blocks, the second precoding granularity is Q resource blocks, and Q is an integer less than K;
  • M is an integer greater than 1
  • each sub-channel includes K resource blocks
  • the second precoding granularity is Q resource blocks
  • Q is an integer less than K;
  • Each of the N sub-channels starts from the frequency domain starting resource block of each sub-channel, and the sub-channels are sequentially divided into Precoding resource block groups and processing units are also used to use L precoding matrix pairs Data on the precoding resource block groups are precoded; L is greater than or equal to 1 and less than or equal to The integer.
  • the precoding resource block group is divided at a granularity smaller than that of the subchannel for each subchannel occupied by the data channel, which is not only limited to the precoding granularity of NR downlink configuration, but is more flexible, and is suitable for side-chain chains.
  • Road frame structure is not only limited to the precoding granularity of NR downlink configuration, but is more flexible, and is suitable for side-chain chains.
  • the number of resource blocks included in the last precoding resource block group in each precoding resource block group is equal to
  • a precoding resource block group is independently divided for each subchannel occupied by a data channel.
  • the number of resource blocks occupied by the subchannel cannot be divided by the precoding granularity Q
  • the number of resource blocks included in the last precoding resource block group divided on the subchannel is less than Q.
  • the number of resource blocks occupied by the subchannel can be evenly divided by the precoding granularity Q
  • the number of resource blocks included in the precoding resource block group divided on the subchannel is Q.
  • the data channel occupies M sub-channels, M is an integer greater than or equal to 1, the sub-channel includes K resource blocks, the second precoding granularity is Q resource blocks, and Q is an integer less than K.
  • the frequency domain starting resource block of the first part of the data channel starts.
  • the first part of the data channel is divided into Precoding resource block groups; the processing unit is also used to use D precoding matrix pairs Data on a precoding resource block group is precoded; X is the number of resource blocks occupied by the control channel, and D is greater than or equal to 1 and less than or equal to Integer; starting from the frequency domain start resource block of the second part of the data channel, according to the second precoding granularity, the second part of the data channel is divided into Precoding resource block groups and processing units are also used to use W precoding matrix pairs
  • W is greater than or equal to 1 and less than or equal to Among them, the first part of the data channel is the part of the data channel that does not overlap with the control channel in the frequency domain and has time domain overlap; the second part of the data channel is the part of the data channel that does not overlap with the control channel in the time domain but has frequency domain overlap.
  • the first part of the data channel as a whole is divided into the precoding resource block group with a granularity smaller than the subchannel
  • the second part of the data channel as a whole is divided into the precoding resource block group with a granularity smaller than the subchannel. Only limited to the precoding granularity of the NR downlink configuration, it is more flexible and is suitable for the frame structure of the side link.
  • the number of resource blocks included in the last precoding resource block group in each precoding resource block group is The number of resource blocks included in the last precoding resource block group in each precoding resource block group is
  • a precoding resource block group is independently divided for each subchannel occupied by a data channel.
  • the number of resource blocks occupied by the subchannel cannot be evenly divided by the precoding granularity Q
  • the number of resource blocks included in the last precoding resource block group divided on the subchannel is less than Q.
  • the number of resource blocks included in the precoding resource block group divided on the subchannel is Q.
  • the data channel occupies M subchannels, M is an integer greater than 1, each subchannel includes K resource blocks, the second precoding granularity is Q resource blocks, and Q is an integer less than K, from The frequency domain start resource block of the first subchannel occupied by the first part of the data channel starts, and according to the second precoding granularity, the first subchannel occupied by the first part of the data channel is sequentially divided into Precoding resource block groups and processing units are also used to use G precoding matrix pairs
  • the data on the precoding resource block groups are precoded; the first subchannel is the subchannel occupied by the control channel among the M subchannels; G is greater than or equal to 1 and less than or equal to According to the second precoding granularity, each second sub-channel occupied by the first part of the data channel is divided into First precoding resource block group, using F precoding matrix pairs
  • the data on the first precoding resource block group is precoded; the second subchannel is the subchannel except the first subchannel among the subchannels occupied by the first
  • each subchannel occupied by the first part of the data channel as a whole is divided into precoding resource block groups with a granularity smaller than that of the subchannels, and each subchannel occupied by the second part of the data channel is taken as a whole to be less than
  • the granularity of subchannels is divided into precoding resource block groups, not only limited to the precoding granularity of NR downlink configuration, but also more flexible, which is suitable for the frame structure of the side link.
  • the number of resource blocks included in the last precoding resource block group in each precoding resource block group is equal to The number of resource blocks included in the last precoding resource block group in the first precoding resource block group is equal to The number of resource blocks included in the last precoding resource block group in the second precoding resource block group is
  • a precoding resource block group is independently divided for each subchannel occupied by a data channel.
  • the number of resource blocks occupied by the subchannel cannot be evenly divided by the precoding granularity Q
  • the number of resource blocks included in the last precoding resource block group divided on the subchannel is less than Q.
  • the number of resource blocks included in the precoding resource block group divided on the subchannel is Q.
  • the data channels in the same resource pool are precoded with the first precoding granularity or the second precoding granularity.
  • the data channels in the same resource pool are configured with the same precoding granularity, and either all adopt a wideband precoding scheme, that is, all precoding is performed at the first precoding granularity; or both Narrowband precoding schemes are all precoding at the second precoding granularity.
  • a second terminal device including: a processing unit, configured to decode the data according to the first precoding granularity or the second precoding granularity, to obtain that the first terminal device sends to the second terminal device Data, where the first precoding granularity is a subchannel, and the second precoding granularity is smaller than a subchannel.
  • one sub-channel is used as a PRG for precoding, that is, the data mapped on the same sub-channel is pre-coded using the same pre-coding matrix, and cross-sub-channel pre-coding is avoided as much as possible , That is, avoid using the same precoding matrix for precoding for data on adjacent subchannels, and improve transmission reliability.
  • the precoding granularity of the subchannel can be configured according to the bandwidth of the subchannel, and the PRG can be divided into a granularity smaller than the subchannel for precoding. This is not only limited to the precoding granularity of the NR downlink configuration, but also Flexible, applicable to the frame structure of the side link.
  • the data channel occupies N subchannels, and N is an integer greater than 1.
  • the first part of the data channel is divided into N-1 data groups and the first resource region; the first resource The area is the part where the frequency domain of the first sub-channel and the control channel do not overlap.
  • the first sub-channel is the sub-channel occupied by the control channel among the N sub-channels; the processing unit is also used to use P precoding matrices for N-1 data
  • P is a positive integer greater than or equal to 1 and less than or equal to N-1
  • the first resource area is divided into Y data groups, and the resource blocks contained in any data group in the Y data groups Is continuous
  • the processing unit is also used to decode data on Y data groups using X precoding matrices
  • Y is an integer greater than or equal to 1
  • X is an integer greater than or equal to 1 and less than or equal to Y
  • a precoding granularity the second part of the data channel is divided into N data groups, the processing unit is also used to decode data on the N data groups using Z precoding matrices; each data group in the N data groups Contains one sub-channel, Z is an integer greater than or equal to 1 and less than or equal to N; among them, the first part of the data channel is the part of
  • the data channel occupies a sub-channel
  • the first part of the data channel is divided into S data groups
  • the resource blocks contained in any one of the S data groups are continuous
  • the processing unit also uses To use T precoding matrices to decode data on S data groups;
  • S is an integer greater than or equal to 1
  • T is an integer greater than or equal to 1 and less than or equal to S;
  • the second part of the data channel is a data group,
  • the processing unit is also used to decode data on a data group by using a precoding matrix; wherein, the first part of the data channel is the part of the data channel that does not overlap with the control channel in the frequency domain but has time domain overlap;
  • the second part is the part of the data channel that does not overlap with the control channel in the time domain and overlaps in the frequency domain.
  • the data channel occupies M subchannels, M is an integer greater than or equal to 1, each subchannel includes K resource blocks, the second precoding granularity is Q resource blocks, and Q is an integer less than K,
  • the processing unit is also used to divide the data channel into Data sets, using R precoding matrix pairs The data on each data group is decoded; R is greater than or equal to 1 and less than or equal to The integer.
  • the number of resource blocks included in the last data group in each data group is the number of resource blocks included in the last data group in each data group.
  • the data channel occupies M sub-channels, M is an integer greater than 1, each sub-channel includes K resource blocks, the second precoding granularity is Q resource blocks, and Q is an integer less than K;
  • M is an integer greater than 1
  • each sub-channel includes K resource blocks
  • the second precoding granularity is Q resource blocks
  • Q is an integer less than K;
  • Each of the N sub-channels starts from the frequency domain starting resource block of each sub-channel, and the sub-channels are sequentially divided into Data sets, processing units, and also used to use L precoding matrix pairs The data on the data group is decoded; L is greater than or equal to 1 and less than or equal to The integer.
  • the number of resource blocks included in the last data group in each data group is equal to
  • the data channel occupies M sub-channels, M is an integer greater than or equal to 1, the sub-channel includes K resource blocks, the second precoding granularity is Q resource blocks, and Q is an integer less than K.
  • the frequency domain starting resource block of the first part of the data channel starts.
  • the first part of the data channel is divided into Data groups; processing unit, also used to use D precoding matrix pairs
  • the data on each data group is decoded;
  • X is the number of resource blocks occupied by the control channel, and D is greater than or equal to 1 and less than or equal to Integer;
  • the second part of the data channel is divided into Data groups, processing units, and also used to use W precoding matrix pairs
  • W is greater than or equal to 1 and less than or equal to Among them, the first part of the data channel is the part of the data channel that does not overlap with the control channel in the frequency domain and has time domain overlap; the second part of the data channel is the part of the data channel that does not overlap with the control channel in the time domain but has frequency domain overlap.
  • the number of resource blocks included in the last data group in each data group is The number of resource blocks included in the last data group in each data group is
  • the data channel occupies M subchannels, M is an integer greater than 1, each subchannel includes K resource blocks, the second precoding granularity is Q resource blocks, and Q is an integer less than K, from The frequency domain start resource block of the first subchannel occupied by the first part of the data channel starts, and according to the second precoding granularity, the first subchannel occupied by the first part of the data channel is sequentially divided into Data groups, processing units, and also used to use G precoding matrix pairs
  • the data on the data groups are decoded;
  • the first subchannel is the subchannel occupied by the control channel in the M subchannels;
  • G is greater than or equal to 1 and less than or equal to
  • each second sub-channel occupied by the first part of the data channel is divided into The first data group, the processing unit, is also used to use F precoding matrix pairs
  • the data on the first data group is decoded;
  • the second subchannel is the subchannel except the first subchannel among the subchannels occupied by the first part of
  • the number of resource blocks included in the last data group in each data group is equal to The number of resource blocks in the last data group in the first data group is equal to The number of resource blocks included in the last data group in the second data group is
  • a communication device including at least one processor and a memory, the at least one processor is coupled to the memory; the memory is configured to store a computer program;
  • the at least one processor is configured to execute a computer program stored in the memory, so that the apparatus executes the method described in the first aspect and any one of the implementation manners of the first aspect.
  • a communication device including at least one processor and a memory, the at least one processor is coupled to the memory; the memory is used to store a computer program;
  • the at least one processor is configured to execute a computer program stored in the memory, so that the apparatus executes the method described in the foregoing second aspect and any one of the implementation manners of the second aspect.
  • a computer-readable storage medium stores a computer program or instruction, and when the computer program or instruction is executed, it implements any one of the first aspect and the first aspect. The method described in this way.
  • a computer-readable storage medium stores a computer program or instruction.
  • the computer program or instruction When executed, it implements any one of the second aspect and the second aspect described above. The method described in this way.
  • a wireless communication device including: instructions stored in the wireless communication device; when the wireless communication device runs on the first terminal device described in any one of the foregoing third aspect and the third aspect , So that the communication device executes the method described in the foregoing first aspect and any one of the implementation manners of the first aspect, and the wireless communication device is a chip.
  • a wireless communication device including: instructions stored in the wireless communication device; when the wireless communication device runs on the second terminal device described in any one of the foregoing fourth aspect and the fourth aspect
  • the wireless communication device is a chip.
  • Figure 1 is a schematic diagram of an existing precoding method
  • Figure 2 is a schematic diagram of time-frequency resources provided by an embodiment of the application.
  • FIG. 3 is an architecture diagram of a communication system provided by an embodiment of the application.
  • Figure 4 is a schematic diagram of a sub-channel provided by an embodiment of the present invention.
  • 5A is a schematic diagram of a data channel and a control channel provided by an embodiment of the present invention.
  • FIG. 5B is another schematic diagram of a data channel and a control channel provided by an embodiment of the present invention.
  • FIG. 6 is a structural block diagram of a communication device provided by an embodiment of the present invention.
  • FIG. 7 is a schematic flowchart of a data receiving method provided by an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of precoding provided by an embodiment of the present invention.
  • FIG. 9 is another schematic diagram of precoding provided by an embodiment of the present invention.
  • FIG. 10 is another schematic diagram of precoding provided by an embodiment of the present invention.
  • FIG. 11 is another schematic diagram of precoding provided by an embodiment of the present invention.
  • FIG. 12 is another schematic diagram of precoding provided by an embodiment of the present invention.
  • FIG. 13 is another schematic diagram of precoding provided by an embodiment of the present invention.
  • FIG. 14 is another schematic diagram of precoding provided by an embodiment of the present invention.
  • FIG. 15 is another schematic diagram of precoding provided by an embodiment of the present invention.
  • FIG. 16 is another schematic diagram of precoding provided by an embodiment of the present invention.
  • Figure 17 is another schematic diagram of precoding provided by an embodiment of the present invention.
  • FIG. 18 is another schematic diagram of precoding provided by an embodiment of the present invention.
  • FIG. 19 is another schematic diagram of precoding provided by an embodiment of the present invention.
  • FIG. 20 is another schematic diagram of precoding provided by an embodiment of the present invention.
  • FIG. 21 is another schematic diagram of precoding provided by an embodiment of the present invention.
  • FIG. 22 is another schematic diagram of precoding provided by an embodiment of the present invention.
  • FIG. 23 is another schematic diagram of precoding provided by an embodiment of the present invention.
  • FIG. 24 is another schematic diagram of precoding provided by an embodiment of the present invention.
  • FIG. 25 is another schematic diagram of precoding provided by an embodiment of the present invention.
  • FIG. 26 is another schematic diagram of precoding provided by an embodiment of the present invention.
  • FIG. 27 is another structural block diagram of a communication device according to an embodiment of the present invention.
  • FIG. 28 is another structural block diagram of a communication device provided by an embodiment of the present invention.
  • multiple antennas can be used to send and receive data between the transmitting end and the receiving end, that is to say, there are multiple spatial channels between the transmitting end and the receiving end.
  • a specific matrix can be used to encode the data to be sent before sending.
  • the encoding process of the data to be sent can be called precoding.
  • the data channel can be divided into several resource block groups according to a certain granularity, and precoding is performed in units of the divided resource block groups.
  • the divided granularity is called precoding granularity (precoding granulatrity)
  • the divided resource block group is called precoding resource block bundling group (PRG).
  • S represents the data mapped on the PRG
  • M represents the precoding matrix
  • P represents the data to be sent after encoding.
  • the precoding matrices used by different PRGs are independent, and may be the same or different, which is not limited in the embodiment of the present application.
  • the PRG is divided on the data channel with the granularity of 2 resource blocks (RB), and every 2 consecutive RBs are used as a PRG.
  • different precoding matrices are used to precode data mapped on different PRGs.
  • precoding matrix M 1 data mapped on PRG1 precoded M 2 data mapped on PRG2 precoded with the precoding matrix M i of the PRG i mapping precoding matrix
  • M i can be the same or different.
  • the unit of precoding granularity is not only limited to RB, but PRG can also be divided according to other frequency domain units, for example, one or more resource elements (RE) or absolute radio frequency Channel number, ARFCN) indicates a wireless channel to divide the PRG.
  • the RB may also be referred to as a physical resource block (PRB).
  • Figure 2 is a schematic diagram of time-frequency resources, where the abscissa represents the time domain, and the ordinate represents the frequency domain.
  • a time-frequency resource composed of a subcarrier in the frequency domain and a symbol in the time domain is an RE
  • 12 consecutive subcarriers in the frequency domain are an RB.
  • the number of symbols in a time slot is a predetermined number, and Figure 2 is only an example.
  • the number of symbols in a time slot can be 7, 14, 6, or 12, etc., and the number of symbols in a time slot can be different when the common cyclic prefix and the extended cyclic prefix are used.
  • ARFCN is a number, indicating a fixed wireless channel.
  • symbol in the embodiment of the present invention may include but is not limited to any of the following: orthogonal frequency division multiplexing (OFDM) symbols, universal filtered multi-carrier (universal filtered multi-carrier) , UFMC) symbol, filter-band multi-carrier (FBMC) symbol, generalized frequency-division multiplexing (GFDM) symbol, etc.
  • OFDM orthogonal frequency division multiplexing
  • UFMC universal filtered multi-carrier
  • FBMC filter-band multi-carrier
  • GFDM generalized frequency-division multiplexing
  • FIG. 3 shows a schematic diagram of a communication system to which the technical solution provided by the present application is applicable.
  • the communication system may include multiple network devices (only network device 100 is shown) and multiple terminal devices (only shown in the figure).
  • FIG. 3 is only a schematic diagram, and does not constitute a limitation on the application scenarios of the technical solutions provided in this application.
  • the communication system supports side-line communication, such as device-to-device (D2D) communication, vehicle-to-everything (V2X) communication, etc.
  • D2D device-to-device
  • V2X vehicle-to-everything
  • the network equipment and the terminal device can perform uplink and downlink transmission through the cellular link (Uu link), and the terminal device can communicate through the side link (sidelink link), such as D2D communication, V2X communication, and machine Type communication (machine type communication, MTC), etc.
  • sidelink link such as D2D communication, V2X communication, and machine Type communication (machine type communication, MTC), etc.
  • the network device may be a transmission reception point (TRP), a base station, a relay station, or an access point.
  • the network device can be a network device in a 5G communication system or a network device in a future evolution network; it can also be a wearable device or a vehicle-mounted device.
  • BTS base transceiver station
  • GSM global system for mobile communication
  • CDMA code division multiple access
  • BTS base transceiver station
  • the NB (NodeB) in wideband code division multiple access (WCDMA) may also be the eNB or eNodeB (evolutional NodeB) in long term evolution (LTE).
  • the network device may also be a wireless controller in a cloud radio access network (cloud radio access network, CRAN) scenario.
  • CRAN cloud radio access network
  • the terminal device may be user equipment (UE), access terminal device equipment, UE unit, UE station, mobile station, mobile station, remote station, remote terminal device equipment, mobile equipment, UE terminal equipment, wireless communication equipment, UE proxy or UE device, etc.
  • the access terminal equipment can be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), Handheld devices, computing devices, or other processing devices connected to wireless modems, in-vehicle devices, wearable devices with wireless communication functions, terminal devices in 5G networks, or public land mobile network (PLMN) networks that will evolve in the future In the terminal equipment, etc.
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistant
  • PLMN public land mobile network
  • the terminal device of the present application may also be a vehicle-mounted module, vehicle-mounted module, vehicle-mounted component, vehicle-mounted chip, or vehicle-mounted unit built into a vehicle as one or more components or units.
  • the vehicle passes through the built-in vehicle-mounted module, vehicle-mounted module , On-board components, on-board chips or on-board units can implement the method of this application.
  • the first terminal device, the second terminal device, and the network device of the present application may all be one or more chips, or may be a system on chip (SOC) or the like.
  • the communication system shown in FIG. 3 supports MIMO technology, and network equipment and terminal devices can respectively use multiple transmitting antennas and multiple receiving antennas to communicate.
  • network equipment and terminal devices can respectively use multiple transmitting antennas and multiple receiving antennas to communicate.
  • multiple transmitting antennas may be used to transmit data, and the terminal device 201 or the terminal device 202 may use multiple receiving antennas to receive data.
  • the terminal device 201 and the terminal device 202 communicate via a sidelink link, the terminal device 201 may use multiple transmitting antennas to transmit data, and the terminal device 202 may use multiple receiving antennas to receive data.
  • the network device may transmit control information to the terminal device through a physical downlink control channel (PDCCH), and transmit data to the terminal device through a physical downlink shared channel (PDSCH).
  • the network equipment may precode the data mapped on the PDCCH, and transmit the precoded data through multiple transmitting antennas, and the terminal device may receive the data through multiple receiving antennas.
  • the precoding granularity of NR downlink configuration is ⁇ 2, 4, wideband ⁇ .
  • the network device can divide the PRG on the PDSCH according to the configured precoding granularity. For example, when precoding is performed at the granularity of broadband, the entire data channel is used as a PRG, and all frequency domain resources within the data channel bandwidth are encoded using the same precoding matrix.
  • precoding is performed at the granularity of a narrowband, for example, the PRG is divided in units of 2 RBs or 4 RBs, and different PRGs are independently precoded.
  • terminal devices transmit control information through a physical sidelink control channel (PSCCH), and transmit data through a physical sidelink shared channel (PSSCH).
  • PSCCH physical sidelink control channel
  • PSSCH physical sidelink shared channel
  • the sidelink resource pool defines sub-channels as the smallest scheduling unit.
  • the bandwidth of all sub-channels in a sidelink resource pool is the same.
  • a sub-channel includes one or more resource blocks (resource block, RB) in the frequency domain, and may include one time slot in the time domain.
  • the bandwidth of the sub-channels in one resource pool of Sidelink may also be different, which is not limited in the embodiment of the present application.
  • the smallest scheduling unit in the sidelink resource pool in this embodiment of the application is not limited to subchannels, but can also be other frequency domain units, such as RB, RE, or ARFCN shown in FIG.
  • the sub-channels in can be replaced with other scheduling units in the sidelink resource pool.
  • one data channel occupies one or more subchannels
  • a control channel for example, PSCCH
  • the data channel can be divided into two parts according to the control channel, which are partA and partB.
  • partA and the control channel overlap in the time domain without frequency domain overlap, that is, partA is the part of the data channel that does not overlap with the control channel in the frequency domain but has time domain overlap; partB and the control channel overlap in time domain and have frequency domain overlap. That is, partB is a part of the data channel that does not overlap with the control channel in the time domain and overlaps in the frequency domain.
  • the start position of the frequency domain of the control channel is aligned with the start position of the frequency domain of the data channel, the frequency spectrum of partA of the data channel is continuous, and the frequency spectrum of partB is also continuous.
  • the frequency domain start position of the control channel is not aligned with the frequency domain start position of the data channel, and the partA of the data channel can be separated into two parts, that is, the frequency spectrum of partA is not continuous, but the frequency spectrum of partB is continuous.
  • the precoding granularity ⁇ 2, 4, wideband ⁇ of NR downlink configuration is mainly applicable to PDSCH.
  • the frame structure of PSSCH is different from PDSCH.
  • the precoding of NR downlink configuration is used.
  • Granularity may cause data of different sub-channels to be divided into the same PRG, and the same precoding matrix is used for precoding. Due to differences in the channel status of different sub-channels, if data of different sub-channels are pre-coded using the same precoding matrix, transmission reliability may be reduced.
  • An embodiment of the present application provides a data transmission method.
  • a first terminal device may precode data on a data channel according to a first precoding granularity or a second precoding granularity to obtain data to be transmitted.
  • the first precoding granularity is a subchannel
  • the second precoding granularity is smaller than the subchannel; after that, the first terminal device sends the obtained data to be sent to the second terminal device.
  • the method provided in the embodiment of the present application may be configured with precoding granularity different from the NR downlink configuration according to the frame structure of the side link, for example, the first precoding granularity and the second precoding granularity.
  • the precoding resource block group can be divided according to the first precoding granularity and the second precoding granularity, which can improve the transmission reliability on the side link. For example, after dividing the PRG according to the granularity of sub-channels, one sub-channel is pre-coded as a PRG, that is, the data mapped on the same sub-channel is pre-coded using the same pre-coding matrix, and cross-sub-channel pre-coding is avoided as much as possible. That is to avoid using the same precoding matrix for precoding of data on adjacent subchannels, thereby improving transmission reliability.
  • the precoding granularity of the subchannel can be configured according to the bandwidth of the subchannel, and the PRG can be divided into a granularity smaller than the subchannel for precoding. It is not limited to the precoding granularity of the NR downlink configuration.
  • the frame structure of the side link provides higher configuration flexibility.
  • the terminal device described in the embodiment of the present application may be implemented by the communication device 60 in FIG. 6.
  • FIG. 6 shows a schematic diagram of the hardware structure of the communication device 60 provided by an embodiment of the application.
  • the communication device 60 includes a processor 601, a memory 602, and at least one communication interface (in FIG. 6 it is only an example and the communication interface 603 is included as an example for illustration).
  • the processor 601, the memory 602, and the communication interface 603 are connected to each other.
  • the processor 601 can be a general-purpose central processing unit (central processing unit, CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more programs for controlling the execution of the program of this application. integrated circuit.
  • CPU central processing unit
  • ASIC application-specific integrated circuit
  • Communication interface 603 which uses any device such as a transceiver to communicate with other devices or communication networks, such as Ethernet, radio access network (RAN), wireless local area networks (WLAN), etc. .
  • RAN radio access network
  • WLAN wireless local area networks
  • the memory 602 may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM), or other types that can store information and instructions
  • the dynamic storage device can also be electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disk storage, optical disc storage (Including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program codes in the form of instructions or data structures and can be used by a computer Any other media accessed, but not limited to this.
  • the memory may exist independently and is connected to the processor through the communication line 602. The memory can also be integrated with the processor.
  • the memory 602 is used to store computer-executed instructions for executing the solution of the present application, and the processor 601 controls the execution.
  • the processor 601 is configured to execute computer-executable instructions stored in the memory 602, so as to implement the intention processing method provided in the following embodiments of the present application.
  • the computer-executable instructions in the embodiments of the present application may also be referred to as application program code, which is not specifically limited in the embodiments of the present application.
  • the processor 601 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 6.
  • the communication device 60 may include multiple processors, such as the processor 601 and the processor 606 in FIG. 6. Each of these processors can be a single-CPU (single-CPU) processor or a multi-core (multi-CPU) processor.
  • the processor here may refer to one or more devices, circuits, and/or processing cores for processing data (for example, computer program instructions).
  • the communication apparatus 60 may further include an output device 604 and an input device 605.
  • the output device 604 communicates with the processor 601, and can display information in a variety of ways.
  • the output device 604 may be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector (projector) Wait.
  • the input device 605 communicates with the processor 601 and can receive user input in a variety of ways.
  • the input device 605 may be a mouse, a keyboard, a touch screen device, or a sensor device.
  • the aforementioned communication device 60 may be a general-purpose device or a dedicated device.
  • the communication device 60 may be a desktop computer, a portable computer, a network server, a personal digital assistant (PDA), a mobile phone, a tablet computer, a wireless terminal device, an embedded device, or a similar structure in FIG. 6 equipment.
  • PDA personal digital assistant
  • the embodiment of the present application does not limit the type of the communication device 60.
  • the communication device 60 may be a complete terminal device, may also be a functional component or component that implements the terminal device, or may be a communication chip, such as a baseband chip.
  • the communication interface may be a radio frequency module.
  • the communication interface 603 may be an input/output interface circuit of the chip, and the input/output interface circuit is used to read in and output baseband signals.
  • An embodiment of the present application provides a data sending method. Referring to FIG. 7, the method includes the following steps:
  • the first terminal device precodes data on the data channel according to the first precoding granularity or the second precoding granularity to obtain data to be sent, where the first precoding granularity is a subchannel, and the first precoding granularity is a subchannel.
  • the second precoding granularity is smaller than the sub-channel.
  • the data channel may be the PSSCH described in the embodiment of the present application, and the data on the data channel may be data mapped on the data channel.
  • the first terminal device performs channel coding and modulation on the data to obtain complex data, and maps the complex data on the data channel.
  • the precoding resource block group (for example, the PRG described in the embodiment of the present application) can also be divided according to the first precoding granularity or the second precoding granularity, and the divided precoding resource block groups are respectively precoded using the precoding matrix.
  • the sub-channels in the embodiments of the present application can also be replaced with other scheduling units of the sidelink resource pool, for example, RB, RE, etc.
  • the specific precoding process is different, including the following two possibilities:
  • the first method is to perform precoding according to the first precoding matrix, that is, divide the precoding resource block group with the subchannel as the precoding granularity, and use the precoding matrix to precode the divided resource block group.
  • the first precoding matrix that is, divide the precoding resource block group with the subchannel as the precoding granularity, and use the precoding matrix to precode the divided resource block group.
  • Example 1a The data channel occupies multiple sub-channels, and the control channel is mapped to one of the sub-channels occupied by the data channel.
  • the frequency domain start position of the control channel and the frequency domain start position of the data channel may or may not be aligned.
  • the transmitting end divides the precoding resource block groups into the first part of the data channel and the second part of the data channel at the granularity of subchannels.
  • the precoding resource block groups whose frequency domain width is equal to the subchannel are independently precoded, and the frequency domain width is smaller than that of the subchannel. Part of the precoding resource block group is divided with continuous resource blocks as the precoding granularity.
  • the first part of the data channel is the part of the data channel that does not overlap with the control channel in the frequency domain and overlaps in the time domain.
  • the first part of the data channel is partA according to the embodiment of the application; the data channel The second part is the part of the data channel that does not overlap with the control channel in the time domain and overlaps in the frequency domain among the data channels.
  • the second part may be partB described in the embodiment of the present application.
  • the frequency domain start position of the control channel may be the first frequency domain resource unit occupied by the control channel.
  • the frequency domain start position of the control channel may be the frequency domain start position of the control channel.
  • the initial resource block for example, the first RB occupied by the data channel.
  • the first RB occupied by the data channel may be the RB with the lowest index among the RBs occupied by the data channel.
  • the data channel occupies N sub-channels, and N is an integer greater than 1, and the first terminal device may divide the first part of the data channel into N-1 precoding resource block groups and the first precoding granularity according to the first precoding granularity.
  • a resource area wherein, each precoding resource block group in the N-1 precoding resource block groups includes one subchannel, and the first resource region is a part where the frequency domain of the first subchannel and the control channel does not overlap, The first subchannel is a subchannel occupied by the control channel among the N subchannels.
  • different precoding resource block groups can use the same precoding matrix or different precoding matrices, which is not limited in this embodiment of the application.
  • P precoding matrices are used to precode data on the N-1 precoding resource block groups, where P is a positive integer greater than or equal to 1 and less than or equal to N-1.
  • the first terminal device may also divide the first resource region into Y precoding resource block groups, and the resource blocks included in any one of the Y precoding resource block groups are continuous, Precoding the data on the Y precoding resource block groups using X precoding matrices; the Y is an integer greater than or equal to 1. Specifically, the frequency domain start position of the control channel is aligned with the frequency domain start position of the data channel, and the first resource region is continuous, as a precoding resource block group, that is, Y is equal to 1.
  • the first resource region is divided into two discontinuous parts by the control channel, and the two parts are respectively used as a precoding resource block group, namely Y Equal to 2.
  • the precoding matrices used by the Y precoding resource block groups may be the same or different, that is, the X is an integer greater than or equal to 1 and less than or equal to Y. Specifically, Y is equal to 1 or 2.
  • the first terminal device may also divide the second part of the data channel into N precoding resource block groups according to the first precoding granularity, and use Z precoding matrices to perform precoding on the data on the N precoding resource block groups. Coding; each precoding resource block group in the N precoding resource block groups includes one subchannel, and the Z is an integer greater than or equal to 1 and less than or equal to N.
  • the frequency domain start position of the control channel is the same as the frequency domain start position of the data channel
  • the data channel occupies two subchannels, and the control channel is mapped on one of the
  • the channel can divide the data channel into three parts: A1, A2, and B.
  • A1 and A2 constitute the first part of the data channel
  • B is the second part of the data channel.
  • the data channel of part B is pre-coded with sub-channel granularity.
  • the data channel of the data channel of part B is divided into two precoding resource block groups G1 and G2, and two different precoding matrices can be used to precode G1 and G2 respectively.
  • the part A data channel is coded according to a continuous RB distribution in a sub-channel. Since the frequency domain start position of the control channel is aligned with the frequency domain start position of the data channel, the first part of the data channel is continuous in one subchannel.
  • the data channel of part A1 is coded with the granularity of M_sub_channel-M_PSCCH as a precoding resource block group G3, where M_sub_channel is the sub-channel bandwidth, and M_PSCCH is the control channel bandwidth.
  • a precoding matrix is used to precode the precoding resource block group G3.
  • the data channel of part A2 is pre-coded with the sub-channel as the precoding granularity, and the data channel of part A2 is used as a precoding resource block group G4. Precoding the precoding resource block group G4 by using one precoding resource block group.
  • the data channel occupies two subchannels, and the control channel is mapped on one of the subchannels.
  • the data channel can be divided according to the control channel There are four parts A1, A2, A3, and B. Among them, A1, A2, and A3 constitute the first part of the data channel, and B is the second part of the data channel.
  • the data channel of part B is pre-coded with sub-channel granularity.
  • the data channel of the data channel of part B is divided into two precoding resource block groups G1 and G2, and two different precoding matrices can be used to precode G1 and G2 respectively.
  • the part A data channel is coded according to a continuous RB distribution in a sub-channel. Because the frequency domain start position of the control channel is not aligned with the frequency domain start position of the data channel, the first part of the data channel is not continuous in a subchannel, and a subchannel is separated by the control channel into two parts A1 and A2 , The resource blocks included in A1 and A2 are continuous.
  • the data channel of the A1 part is precoded with X RB granularity as a precoding resource block group G3, and a precoding matrix is used to precode the precoding resource block group G3.
  • the data channel in part A2 is pre-coded with a granularity of Y RBs as a pre-coding resource block group G4, and a pre-coding matrix is used to pre-code the pre-coding resource block group G4.
  • the bandwidth of X RBs, the bandwidth of Y RBs, and M_PSCCH add up to the sub-channel bandwidth.
  • M_PSCCH is the control channel bandwidth.
  • the data channel of the A3 part is pre-coded with the sub-channel as the precoding granularity, and the data channel of the A3 part is used as a precoding resource block group G5.
  • Precoding the precoding resource block group G5 is performed using one precoding resource block group.
  • Example 1b The data channel occupies 1 subchannel, the data channel occupies 1 subchannel, the control channel is mapped to a subchannel occupied by the data channel, and the frequency domain start position of the control channel can be aligned with the frequency domain start position of the data channel. It can also be misaligned.
  • the transmitting end can divide the precoding resource block groups into the first part of the data channel and the second part of the data channel according to the subchannels.
  • the precoding resource block groups whose frequency domain width is equal to the subchannel are independently precoded, and the frequency domain width is smaller than that of the subchannel. Part of the precoding resource block group is divided with continuous resource blocks as the precoding granularity.
  • the first part of the data channel may be divided into S precoding resource block groups, the resource blocks contained in any one of the S precoding resource block groups are continuous, and T precoding matrices are used Precoding the data on the S precoding resource block groups; the S is an integer greater than or equal to 1, and the T is an integer greater than or equal to 1 and less than or equal to S. Specifically, S is 1 or 2.
  • the frequency domain start position of the control channel is aligned with the frequency domain start position of the data channel
  • the first part of the data channel can be divided into a precoding resource block group.
  • the frequency domain start position of the control channel is not aligned with the frequency domain start position of the data channel
  • the first part of the data channel can be divided into two precoding resource block groups.
  • the second part of the data channel is a precoding resource block group, and a precoding matrix is used to precode the data on the precoding resource block group.
  • the data channel occupies a subchannel, and the control channel is mapped on the subchannel.
  • the data channel can be divided into two parts, A and B, where A is the first part of the data channel, and B is the second part of the data channel.
  • the data channel of part B is pre-coded with sub-channel granularity.
  • the data channel of the data channel of part B is divided into the precoding resource block group G1, and a precoding matrix can be used to precode G1.
  • the part A data channel is coded according to a continuous RB distribution in a sub-channel. Since the frequency domain start position of the control channel is aligned with the frequency domain start position of the data channel, the first part of the data channel is continuous in one subchannel.
  • the data channel of part A is coded with the granularity of M_sub_channel-M_PSCCH as a precoding resource block group G2, and a precoding matrix is used to precode the precoding resource block group G2.
  • the data channel occupies a subchannel, and the control channel is mapped on the subchannel.
  • the data channel can be divided into The three parts A1, A2, and B, where A1 and A2 constitute the first part of the data channel, and B is the second part of the data channel.
  • the data channel of part B is pre-coded with sub-channel granularity.
  • the data channel of the data channel of part B is divided into two precoding resource block groups G1, and one precoding matrix can be used to precode G1.
  • the part A data channel is coded according to a continuous RB distribution in a sub-channel. Because the frequency domain start position of the control channel is not aligned with the frequency domain start position of the data channel, the first part of the data channel is not continuous in a subchannel, and a subchannel is separated by the control channel into two parts A1 and A2 , The resource blocks included in A1 and A2 are continuous.
  • the data channel of the A1 part is pre-coded with X RB granularity as a pre-coding resource block group G2, and a pre-coding matrix is used to pre-code the pre-coding resource block group G2.
  • the data channel of part A2 is pre-coded with a granularity of Y RBs as a pre-coding resource block group G3, and a pre-coding matrix is used to pre-code the pre-coding resource block group G3.
  • the bandwidth of X RBs, the bandwidth of Y RBs, and M_PSCCH add up to the sub-channel bandwidth.
  • M_PSCCH is the control channel bandwidth.
  • the second method is to perform precoding according to the second precoding matrix, that is, divide the precoding resource block group with a precoding granularity smaller than the subchannel, and use the precoding matrix to precode the divided resource block group.
  • the second precoding matrix that is, divide the precoding resource block group with a precoding granularity smaller than the subchannel
  • Example 2a The data channel occupies one or more sub-channels, and the control channel is mapped to one of the sub-channels occupied by the data channel.
  • the frequency domain start position of the control channel and the frequency domain start position of the data channel may or may not be aligned .
  • the transmitting end may start from the frequency domain start position of the data channel, and divide the precoding resource block group on the entire data channel with multiple RBs (less than the subchannel bandwidth) as the granularity.
  • the data channel occupies M subchannels, where M is an integer greater than or equal to 1, each subchannel includes K resource blocks, the second precoding granularity is Q resource blocks, and Q is An integer smaller than the K.
  • the first terminal device may start from the frequency domain start resource block of the data channel, and divide the data channel into successively according to the second precoding granularity Precoding resource block groups, using R precoding matrices to Data on precoding resource block groups are precoded; the R is greater than or equal to 1 and less than or equal to the The integer.
  • the The number of resource blocks included in the last precoding resource block group in each precoding resource block group is When K ⁇ M cannot be Q, the number of contiguous resource blocks in the last precoding resource block group is less than Q, when K ⁇ M can be Q, contiguous resource blocks in all precoding resource block groups divided on the data channel The quantity is Q.
  • the last precoding resource block group is the last precoding resource block group obtained by sequentially dividing the coding group from the frequency domain start resource block of the data channel.
  • the frequency domain start position of the control channel is aligned with the frequency domain start position of the data channel, the data channel occupies 3 sub-channels, and the control channel is mapped to one of the sub-channels occupied by the data channel.
  • Each subchannel includes 5 consecutive RBs.
  • the second precoding granularity is smaller than the subchannel, for example, the second precoding granularity is 4 RBs.
  • the data channel is sequentially divided into precoding resource block groups G1, G2, G3, and G4 with 4 RBs as the precoding granularity.
  • the precoding resource block groups G1, G2, and G3 all include 4 consecutive RBs
  • the precoding resource block group G4 includes 3 RBs.
  • the first terminal device may use four precoding matrices to precode the precoding resource block groups G1, G2, G3, and G4, respectively.
  • the data channel occupies 3 subchannels, and the control channel is mapped to one of the subchannels occupied by the data channel.
  • Each subchannel includes 5 consecutive RBs.
  • the second precoding granularity is smaller than the subchannel, for example, the second precoding granularity is 4 RBs.
  • the data channel is sequentially divided into precoding resource block groups G1, G2, G3, and G4 with 4 RBs as the precoding granularity.
  • the precoding resource block groups G1, G2, and G3 all include 4 consecutive RBs
  • the precoding resource block group G4 includes 3 RBs.
  • the first terminal device may use four precoding matrices to precode the precoding resource block groups G1, G2, G3, and G4, respectively.
  • Example 2b The data channel occupies one or more sub-channels, and the control channel is mapped to one of the sub-channels occupied by the data channel.
  • the frequency domain start position of the control channel and the frequency domain start position of the data channel may or may not be aligned .
  • the sending end can independently divide the precoding resource block group for each subchannel occupied by the data channel. That is, for each subchannel occupied by the data channel, starting from the frequency domain starting resource block of the subchannel, using multiple RBs (less than the subchannel bandwidth) as the granularity, divide the precoding resource block group on each subchannel.
  • the data channel occupies M subchannels, the M is an integer greater than 1, each subchannel includes K resource blocks, the second precoding granularity is Q resource blocks, and the Q is less than The integer of K.
  • the subchannels are sequentially divided into Precoding resource block groups, using L precoding matrices to Data on precoding resource block groups are precoded; the L is greater than or equal to 1 and less than or equal to the The integer.
  • the The number of resource blocks included in the last precoding resource block group in each precoding resource block group is equal to When K cannot be Q, the number of contiguous resource blocks in the last precoding resource block group is less than Q, when K can be Q, the number of contiguous resource blocks in all precoding resource block groups divided on the data channel is Q .
  • the last precoding resource block group in each subchannel is the last precoding resource block group obtained by sequentially dividing the coding group from the frequency domain starting resource block of the subchannel.
  • the data channel occupies three subchannels, subchannel 1, subchannel 2, and subchannel 3.
  • the control channel is mapped in One of the sub-channels occupied by the data channel.
  • Each subchannel includes 5 consecutive RBs.
  • the second precoding granularity is smaller than the subchannel, for example, the second precoding granularity is 2 RBs.
  • the data channel is sequentially divided into precoding resource block groups G1, G2, and G3 with 2 RBs as the precoding granularity, where the precoding resource block Groups G1 and G2 each include 2 consecutive RBs, and precoding resource block group G3 includes 1 RB.
  • precoding resource block groups G4, G5, and G6 For subchannel 2, starting from the first RB of subchannel 2, the data channel is sequentially divided into precoding resource block groups G4, G5, and G6 with 2 RBs as the precoding granularity.
  • precoding resource block groups G4, G5 Both include 2 consecutive RBs, and the precoding resource block group G6 includes 1 RB.
  • precoding resource block groups G7, G8, and G9 For subchannel 3, starting from the first RB of subchannel 3, the data channel is sequentially divided into precoding resource block groups G7, G8, and G9 with 2 RBs as the precoding granularity.
  • precoding resource block groups G7, G8 Both include 2 consecutive RBs, and the precoding resource block group G9 includes 1 RB.
  • the first terminal device may use different precoding matrices to precode the precoding resource block groups G1, G2, G3, G4, G5, G6, G7, G8, and G9, respectively.
  • the frequency domain start position of the control channel is not aligned with the frequency domain start position of the data channel.
  • the data channel occupies the three sub-channels, sub-channel 1, sub-channel 2, and sub-channel 3, and the control channel is mapped on one of the sub-channels occupied by the data channel.
  • Each subchannel includes 5 consecutive RBs.
  • the second precoding granularity is smaller than the subchannel, for example, the second precoding granularity is 2 RBs.
  • the data channel is sequentially divided into precoding resource block groups G1, G2, and G3 with 2 RBs as the precoding granularity, where the precoding resource block Groups G1 and G2 each include 2 consecutive RBs, and precoding resource block group G3 includes 1 RB.
  • precoding resource block groups G4, G5, and G6 For subchannel 2, starting from the first RB of subchannel 2, the data channel is sequentially divided into precoding resource block groups G4, G5, and G6 with 2 RBs as the precoding granularity.
  • precoding resource block groups G4, G5 Both include 2 consecutive RBs, and the precoding resource block group G6 includes 1 RB.
  • precoding resource block groups G7, G8, and G9 For subchannel 3, starting from the first RB of subchannel 3, the data channel is sequentially divided into precoding resource block groups G7, G8, and G9 with 2 RBs as the precoding granularity.
  • precoding resource block groups G7, G8 Both include 2 consecutive RBs, and the precoding resource block group G9 includes 1 RB.
  • the first terminal device may use different precoding matrices to precode the precoding resource block groups G1, G2, G3, G4, G5, G6, G7, G8, and G9, respectively.
  • Example 2c The data channel occupies one or more sub-channels, and the control channel is mapped to one of the sub-channels occupied by the data channel.
  • the frequency domain start position of the control channel and the frequency domain start position of the data channel may or may not be aligned .
  • the transmitting end may start from the frequency domain start position of the first part of the data channel, and divide the precoding resource block group on the first part of the entire data channel with a granularity of multiple RBs (less than the subchannel bandwidth).
  • a granularity of multiple RBs less than the subchannel bandwidth
  • the data channel occupies M subchannels, the M is an integer greater than or equal to 1, the subchannel includes K resource blocks, the second precoding granularity is Q resource blocks, and the Q is less than K The integer.
  • the first part of the data channel is sequentially divided into Precoding resource block groups; using D precoding matrices to Data on a precoding resource block group is precoded; the X is the number of resource blocks occupied by the control channel, and the D is greater than or equal to 1 and less than or equal to the Integer
  • the second part of the data channel is sequentially divided into Precoding resource block groups, using W precoding matrices to Data on the precoding resource block groups are precoded, and the W is greater than or equal to 1 and less than or equal to
  • the number of resource blocks included in the last precoding resource block group in each precoding resource block group is When (K ⁇ MX) is divisible by Q, the number of resource blocks included in each precoding resource block group divided by the first part of the data channel is Q. When (K ⁇ MX) cannot be divisible by Q, the number of resource blocks included in the last precoding resource block group divided by the first part of the data channel is less than Q.
  • the The number of resource blocks included in the last precoding resource block group in each precoding resource block group is When (K ⁇ M) is divisible by Q, the number of resource blocks included in each precoding resource block group divided by the first part of the data channel is Q. When (K ⁇ M) cannot be divisible by Q, the number of resource blocks included in the last precoding resource block group divided by the first part of the data channel is less than Q.
  • the data channel occupies three subchannels, subchannel 1, subchannel 2, and subchannel 3.
  • the control channel is mapped in The data channel occupies one of the sub-channels, and the control channel occupies 3 RBs.
  • Each subchannel includes 5 consecutive RBs.
  • the second precoding granularity is smaller than the subchannel, for example, the second precoding granularity is 4 RBs.
  • the data channel occupies 3 subchannels, and the control channel occupies 3 RBs, so the first part of the data channel occupies 12 (3.5-3) consecutive RBs.
  • the 12 RBs occupied by the first part of the data channel are sequentially divided into precoding resource block groups G1, G2, G3.
  • the number of resource blocks included in the precoding resource block groups G1, G2, and G3 are all 4.
  • the second part of the data channel occupies 15 RBs.
  • the 15 RBs occupied by the second part of the data channel are sequentially divided into precoding resource block groups G4, G5, G6, and G7.
  • the number of resource blocks included in the precoding resource block group G4, G5, and G6 are all four, and the number of resource blocks included in the precoding resource block group G7 is three.
  • the data channel occupies three subchannels, subchannel 1, subchannel 2, and subchannel 3.
  • the control channel is mapped On one of the sub-channels occupied by the data channel, and the control channel occupies 3 RBs.
  • Each subchannel includes 5 consecutive RBs.
  • the second precoding granularity is smaller than the subchannel, for example, the second precoding granularity is 4 RBs.
  • the data channel occupies 3 subchannels
  • the control channel occupies 3 RBs
  • the first part of the data channel is separated into two discrete parts by the control channel
  • the first part of the data channel occupies 12 (3 ⁇ 5-3) RBs. Discontinuous.
  • the 12 RBs occupied by the first part of the data channel can be sequentially divided into precoding resource block groups G1, G2, G3.
  • the number of resource blocks included in the precoding resource block groups G1, G2, and G3 are all 4. It should be noted that because the frequency domain start position of the control channel is not aligned with the frequency domain start position of the data channel, the resource blocks included in the precoding resource block group G1 are not continuous.
  • the second part of the data channel occupies 15 RBs, and with 4 RBs as the precoding granularity, the 12 RBs occupied by the first part of the data channel are sequentially divided into precoding resource block groups G4, G5, G6, and G7.
  • precoding resource block groups G4, G5, and G6 are all four, and the number of resource blocks included in the precoding resource block group G7 is three.
  • Example 2d The data channel occupies one or more sub-channels, and the control channel is mapped to one of the sub-channels occupied by the data channel.
  • the frequency domain start position of the control channel and the frequency domain start position of the data channel may or may not be aligned .
  • the sender can divide the first subchannel occupied by the first part of the data channel into 1 or 2 precoding resource blocks, and can divide it on each second subchannel occupied by the first part of the data channel according to the second precoding granularity. In the precoding resource block group, each second sub-channel is independently divided.
  • the precoding resource block group may be divided on each subchannel occupied by the second part of the data channel according to the second precoding granularity, and each subchannel occupied by the second part of the data channel is divided independently.
  • the first subchannel is a subchannel mapped by the control channel
  • the second subchannel is a subchannel other than the first subchannel among the multiple subchannels occupied by the first part of the data channel.
  • the data channel occupies M subchannels, the M is an integer greater than 1, each subchannel includes K resource blocks, the second precoding granularity is Q resource blocks, and the Q is less than The integer of K.
  • the first subchannel occupied by the first part of the data channel according to the second precoding granularity is sequentially divided into Precoding resource block groups, using G precoding matrices to Data on precoding resource block groups are precoded;
  • the first subchannel is the subchannel occupied by the control channel among the N subchannels;
  • the G is greater than or equal to 1 and less than or equal to Integer
  • each second subchannel occupied by the first part of the data channel is sequentially divided into First precoding resource block group, using F precoding matrices to The data on the first precoding resource block group is precoded; the second subchannel is the other subchannels except the first subchannel among the subchannels occupied by the first part of the data channel; the F is Greater than or equal to 1 and less than or equal to Integer
  • each sub-channel occupied by the second part of the data channel is sequentially divided into Second precoding resource block group, using H precoding matrices to Data on the second precoding resource block group is precoded; the H is greater than or equal to 1 and less than or equal to Integer
  • the number of resource blocks included in the last precoding resource block group in each precoding resource block group is equal to When (KX) is not divisible by Q, the The number of resource blocks included in the last precoding resource block group in a precoding resource block group is less than Q, when (KX) is divisible by Q, the Each precoding resource block group includes Q resource blocks.
  • the number of resource blocks included in the last precoding resource block group in the first precoding resource block group is equal to When K is not divisible by Q, the The number of resource blocks included in the last first precoding resource block group in the first precoding resource block group is less than Q, when K can be divisible by Q, the Each precoding resource block group includes Q resource blocks.
  • the number of resource blocks included in the last precoding resource block group in the second precoding resource block group is When K is not divisible by Q, the The number of resource blocks included in the last second precoding resource block group in the second precoding resource block group is less than Q, when K is divisible by Q, the Each precoding resource block group includes Q resource blocks.
  • the frequency domain start position of the control channel is aligned with the frequency domain start position of the data channel.
  • the data channel occupies three subchannels, subchannel 1, subchannel 2, and subchannel 3.
  • the control channel is mapped to subchannel 1, and the control channel occupies 3 RBs.
  • Each subchannel includes 5 consecutive RBs.
  • the second precoding granularity is smaller than the subchannel, for example, the second precoding granularity is 3 RBs.
  • the subchannel 1 occupied by the first part of the data channel (that is, the first subchannel described in the embodiment of this application) is divided into a precoding resource block group G1. Since the control channel occupies 3 RBs, the precoding resource block group G1 includes 2 consecutive Resource block.
  • the data channel is sequentially divided into pre-coding granularity with 3 RBs. Coding resource block groups G2 and G3, where the precoding resource block group G2 includes 3 consecutive RBs, and the precoding resource block group G3 includes 2 RBs.
  • the precoding granularity is 3 RBs.
  • the data channel is sequentially divided into precoding resource block groups G4 and G5, where the precoding resource block group G4 includes 3 consecutive RBs, and the precoding resource block group G5 includes 2 RBs.
  • the data channel is sequentially divided into precoding resource block groups G6, with 3 RBs as the precoding granularity.
  • G7 where the precoding resource block group G6 includes 3 consecutive RBs, and the precoding resource block group G7 includes 2 RBs.
  • the data channel is sequentially divided into precoding resource block groups G8 and G8 with 3 RBs as the precoding granularity.
  • G9 where the precoding resource block group G8 includes 3 consecutive RBs, and the precoding resource block group G9 includes 2 RBs.
  • the data channel is sequentially divided into precoding resource block groups G10, with 3 RBs as the precoding granularity.
  • G11 where the precoding resource block group G10 includes 3 consecutive RBs, and the precoding resource block group G11 includes 2 RBs.
  • the first terminal device may use different precoding matrices to precode the precoding resource block groups G1 to G11, respectively.
  • the frequency domain start position of the control channel is not aligned with the frequency domain start position of the data channel.
  • the data channel occupies three subchannels, subchannel 1, subchannel 2, and subchannel 3.
  • the control channel is mapped to subchannel 1, and the control channel occupies 3 RBs.
  • Each subchannel includes 5 consecutive RBs.
  • the second precoding granularity is smaller than the subchannel, for example, the second precoding granularity is 2 RBs.
  • the subchannel 1 occupied by the first part of the data channel (that is, the first subchannel described in the embodiment of this application) is divided into precoding resource block groups G1 and G2. Since the control channel occupies 3 RBs, the precoding resource block groups G1 and G2 Each includes 1 resource block.
  • the data channel is sequentially divided into pre-coding granularity with 3 RBs.
  • Coding resource block groups G3 and G4 where the precoding resource block group G3 includes 3 consecutive RBs, and the precoding resource block group G4 includes 2 RBs.
  • the precoding granularity is 3 RBs.
  • the data channel is sequentially divided into precoding resource block groups G5 and G6, where the precoding resource block group G5 includes 3 consecutive RBs, and the precoding resource block group G6 includes 2 RBs.
  • the data channel is sequentially divided into precoding resource block groups G7, with 3 RBs as the precoding granularity.
  • G8 where the precoding resource block group G7 includes 3 consecutive RBs, and the precoding resource block group G8 includes 2 RBs.
  • the data channel is sequentially divided into precoding resource block groups G9, with 3 RBs as the precoding granularity.
  • G10 where the precoding resource block group G9 includes 3 consecutive RBs, and the precoding resource block group G10 includes 2 RBs.
  • the data channel is sequentially divided into precoding resource block groups G11, with 3 RBs as the precoding granularity.
  • G12 where the precoding resource block group G11 includes 3 consecutive RBs, and the precoding resource block group G12 includes 2 RBs.
  • the first terminal device may use different precoding matrices to precode the precoding resource block groups G1 to G12, respectively.
  • the first terminal device may use different precoding matrices to precode the precoding resource block groups G1 to G17, respectively.
  • the first terminal device sends the data to be sent to a second terminal device.
  • the terminal device maps the coded data on the precoding resource block group to the corresponding spatial resource grid, and sends the data on the precoding resource block group to the second terminal device through the spatial channel.
  • the control channel may also occupy multiple sub-channels.
  • the frequency domain start position of the control channel is aligned with the frequency domain start position of the data channel, the data channel occupies three subchannels, and the control channel is mapped to two of the subchannels.
  • the first terminal device may divide the precoding resource block group according to the first precoding granularity or the second precoding granularity.
  • the first precoding granularity is the subchannel bandwidth
  • the second precoding granularity is smaller than the subchannel.
  • the first part of the data channel and the second part of the data channel are respectively divided into precoding resource block groups with the granularity of subchannels, and the precoding resource block groups whose frequency domain width is equal to the subchannel are independently precoded.
  • the part whose domain width is smaller than the subchannel is divided into precoding resource block groups with continuous resource blocks as the precoding granularity.
  • the A1 part of the data channel is precoded as a precoding resource block group, including 3 RBs.
  • the A2 part of the data channel occupies a sub-channel, which is used as a precoding resource block group for precoding.
  • the B1 part of the data channel occupies a sub-channel, which is used as a precoding resource block group for precoding.
  • the B2 of the data channel occupies a sub-channel, which is used as a precoding resource block group for precoding.
  • the B3 part of the data channel occupies a sub-channel and is used as a precoding resource block group for precoding.
  • the entire data channel is taken as a whole to divide the precoding resource block group, starting from the frequency domain start position of the data channel, with multiple RBs (less than the sub-channel bandwidth) as the granularity, in the whole
  • the data channel is divided into precoding resource block groups.
  • each subchannel includes 5 RBs, with 3 RBs as the precoding granularity.
  • the data channel is sequentially divided into precoding resource block groups G1, G2, G3, G4, and G5.
  • the first terminal device may also use different precoding matrices to precode G1, G2, G3, G4, and G5.
  • the precoding resource block group is divided independently for each subchannel occupied by the data channel. That is, for each subchannel occupied by the data channel, starting from the frequency domain starting resource block of the subchannel, using multiple RBs (less than the subchannel bandwidth) as the granularity, divide the precoding resource block group on each subchannel.
  • the data channel occupies 3 subchannels: subchannel 1, subchannel 2, and subchannel 3.
  • the control channel is mapped to subchannel 1 and subchannel 2.
  • Each sub-channel includes 5 RBs, with 3 RBs as the precoding granularity.
  • subchannel 1 is divided into 2 precoding resource block groups: G1, G2;
  • subchannel 2 is divided into 2 precoding resource blocks Group: G3, G4;
  • sub-channel 3 is divided into two precoding resource block groups: G5, G6.
  • the frequency domain start position of the first part of the data channel using multiple RBs (less than the sub-channel bandwidth) as the granularity, divide the first part of the data channel as a whole into the precoding resource block group .
  • the second part of the data channel starting from the frequency domain start position of the second part of the data channel, with multiple RBs (smaller than the subchannel bandwidth) as the granularity, the second part of the data channel as a whole is divided into precoding resource block groups.
  • the first part of the data channel and the second part of the data channel use the same precoding granularity to divide the precoding block resource group.
  • the data channel occupies 3 subchannels: subchannel 1, subchannel 2, and subchannel 3.
  • the control channel is mapped on subchannel 1 and subchannel 2, occupying 7 RBs.
  • Each sub-channel includes 5 RBs, with 3 RBs as the precoding granularity.
  • the first part of the data channel occupies 8 RBs, including 3 RBs on subchannel 2 and 5 RBs on subchannel 3.
  • the second part of the data channel occupies 15 RBs.
  • the first part of the data channel is sequentially divided into a precoding resource block group G1, a precoding resource block group G2, and a precoding resource block group G3.
  • the precoding resource block group G1 and the precoding resource block group G2 each include 3 RBs, and the precoding resource block group G3 includes 2 RBs.
  • the second part of the data channel is sequentially divided into precoding resource block group G4 to precoding resource block group G8.
  • the first subchannel occupied by the first part of the data channel may be divided into 1 or 2 precoding resource blocks.
  • a precoding resource block is divided on the first subchannel, when the frequency domain start position of the control channel and the frequency domain start position of the data channel Align, divide two precoding resource blocks on the first subchannel.
  • the precoding resource block group may be divided on each second subchannel occupied by the first part of the data channel according to the second precoding granularity, and each second subchannel is divided independently.
  • the precoding resource block group may be divided on each subchannel occupied by the second part of the data channel according to the second precoding granularity, and each subchannel occupied by the second part of the data channel is divided independently.
  • the first subchannel is a subchannel mapped by the control channel
  • the second subchannel is a subchannel other than the first subchannel among the multiple subchannels occupied by the first part of the data channel.
  • the data channel occupies 3 subchannels: subchannel 1, subchannel 2, and subchannel 3.
  • the control channel is mapped on subchannel 1 and subchannel 2, occupying 7 RBs.
  • Each sub-channel includes 5 RBs, with 3 RBs as the precoding granularity.
  • the first part of the data channel occupies 8 RBs, including 3 RBs on subchannel 2 and 5 RBs on subchannel 3.
  • the second part of the data channel occupies 15 RBs.
  • the first subchannel (for example, subchannel 1 and subchannel 2 occupied by the first part of the data channel) is divided into a precoding resource block group G1, which includes 3 RBs.
  • the subchannel 3 occupied by the first part of the data channel (that is, the second subchannel described in the embodiment of the present application) is sequentially divided into a precoding resource block group G2 and a precoding resource block group G3.
  • the precoding resource block group G2 includes 3 RBs
  • the precoding resource block group G3 includes 2 RBs.
  • the subchannel 1 occupied by the second part of the data channel is sequentially divided into a precoding resource block group G4 and a precoding resource block group G5.
  • the precoding resource block group G4 includes 3 RBs
  • the precoding resource block group G5 includes 2 RBs
  • the subchannel 2 occupied by the second part of the data channel is sequentially divided into precoding resource block group G6 and precoding resource block group G7.
  • the precoding resource block group G6 includes 3 RBs
  • the precoding resource block group G7 includes 2 RBs.
  • the subchannel 3 occupied by the second part of the data channel is sequentially divided into a precoding resource block group G8 and a precoding resource block group G9.
  • the precoding resource block group G8 includes 3 RBs
  • the precoding resource block group G9 includes 2 RBs.
  • the precoding granularity can be configured in the following four ways:
  • the terminal device (for example, the first terminal device described in the embodiment of this application) is sorted according to the first precoding granularity or the second precoding granularity.
  • the resource pool may be pre-configured, and the resource pool and precoding granularity may be configured There is a binding relationship, and all terminals working in the same resource pool perform precoding according to the precoding granularity configured in the resource pool.
  • the data channel between the first terminal device and the second terminal device is in the first resource pool
  • the first terminal device performs precoding according to the precoding granularity pre-configured in the first resource pool
  • the second terminal device performs precoding according to the first resource pool.
  • the precoding granularity pre-configured in the pool precodes the data from the first terminal device.
  • all data channels in the first resource pool use the same precoding granularity, for example, the first precoding granularity is uniformly used, or the second precoding granularity is uniformly used.
  • the network side configures the first precoding granularity or the second precoding granularity through radio resource control (Radio Resource Control, RRC) signaling.
  • RRC Radio Resource Control
  • the network side broadcasts the resource pool information and the precoding granularity of the resource pool configuration through RRC signaling
  • the terminal device for example, the first terminal device or the second terminal device
  • the terminal device can monitor the signaling broadcast by the network side to obtain the resource pool information
  • the precoding granularity configured by the resource pool for example, the first precoding granularity or the second precoding granularity.
  • the first terminal device configures the precoding granularity to the second terminal device through signaling.
  • the first terminal device may also indicate the used precoding granularity to the second terminal device (receiver).
  • the first precoding granularity or the second precoding granularity is indicated through sidelink control information (SCI) or radio resource control (radio resource control, RRC) on the sidelink.
  • SCI sidelink control information
  • RRC radio resource control
  • the communication system where the terminal device is located performs coding according to the first precoding granularity by default, or performs coding according to the second precoding granularity by default.
  • the first terminal terminal device may decide to use the first precoding granularity or the second precoding granularity for coding according to the sidelink measurement result.
  • the side-line measurement result may be channel state information (channel state information, CSI), channel quality indicator (channel quality indicator, CQI), etc. measured on the sidelink link by the second terminal device.
  • the first terminal device may select a narrowband or wideband granularity of precoding granularity according to the change in the granularity feedback information of each resource block; if there is only one CSI feedback information, that is, the CSI feedback information is the first If the second terminal device feedbacks the measurement within the bandwidth of the communication link, the first terminal device can only select a precoding matrix with a wideband granularity for encoding.
  • the method shown in FIG. 7 further includes: the second terminal device receives data from the first terminal device, and decodes the data according to the first precoding granularity or the second precoding granularity to obtain the first terminal device
  • the first precoding granularity is a subchannel
  • the second precoding granularity is smaller than the subchannel.
  • the data channel between the first terminal device and the second terminal device occupies N subchannels, where N is an integer greater than 1, and the second terminal device is based on the first precoding granularity or the second precoding granularity
  • Decoding the data includes: according to the first precoding granularity, the first part of the data channel is divided into N-1 data groups and a first resource region; the first resource region is that the frequency domain of the first subchannel and the control channel do not overlap
  • the first sub-channel is the sub-channel occupied by the control channel among the N sub-channels; the data on the N-1 data groups are decoded using P precoding matrices, where P is greater than or equal to 1 and less than or equal to N- A positive integer of 1;
  • the first resource area is divided into Y data groups, the resource blocks contained in any data group in the Y data groups are continuous, and the data on the Y data groups are processed by X precoding matrices Decoding;
  • Y is an integer greater than or equal to 1
  • the data channel between the first terminal device and the second terminal device occupies one subchannel, and the second terminal device decodes the data according to the first precoding granularity or the second precoding granularity, Including: the first part of the data channel is divided into S data groups, the resource blocks contained in any one of the S data groups are continuous, and the data on the S data groups are decoded by using T precoding matrices; S Is an integer greater than or equal to 1, and T is an integer greater than or equal to 1 and less than or equal to S; the second part of the data channel is a data group, and a precoding matrix is used to decode the data on a data group; among them, the data channel
  • the first part is the part of the data channel that does not overlap with the control channel in the frequency domain and has time domain overlap; the second part of the data channel is the part of the data channel that does not overlap with the control channel in the time domain but has frequency domain overlap.
  • the data channel between the first terminal device and the second terminal device occupies M subchannels, where M is an integer greater than or equal to 1, each subchannel includes K resource blocks, and the second precoding granularity is Q resource blocks, Q is an integer less than K, and the second terminal device decodes the data according to the first precoding granularity or the second precoding granularity, including:
  • the data channel is divided into Data sets, using R precoding matrix pairs
  • R is greater than or equal to 1 and less than or equal to The integer.
  • the number of resource blocks included in the last data group in each data group is the number of resource blocks included in the last data group in each data group.
  • the data channel between the first terminal device and the second terminal device occupies M subchannels, where M is an integer greater than 1, each subchannel includes K resource blocks, and the second precoding granularity is Q Resource blocks, Q is an integer less than K; the first terminal device decodes the data according to the second precoding granularity, including:
  • the subchannels are sequentially divided into Data sets, using L precoding matrix pairs
  • L is greater than or equal to 1 and less than or equal to The integer.
  • the number of resource blocks included in the last data group in each data group is equal to
  • the data channel between the first terminal device and the second terminal device occupies M subchannels, where M is an integer greater than or equal to 1, the subchannels include K resource blocks, and the second precoding granularity is Q Resource blocks, Q is an integer less than K, and the second terminal device decodes the data according to the first precoding granularity or the second precoding granularity, including: starting from the frequency domain start resource block of the first part of the data channel, According to the second precoding granularity, the first part of the data channel is divided into Data sets; using D precoding matrix pairs The data on each data group is decoded; X is the number of resource blocks occupied by the control channel, and D is greater than or equal to 1 and less than or equal to Integer; starting from the frequency domain start resource block of the second part of the data channel, according to the second precoding granularity, the second part of the data channel is divided into Data sets, using W precoding matrix pairs The data on each data group is decoded, W is greater
  • the number of resource blocks included in the last data group in each data group is The number of resource blocks included in the last data group in each data group is
  • the data channel occupies M subchannels, M is an integer greater than 1, each subchannel includes K resource blocks, the second precoding granularity is Q resource blocks, Q is an integer less than K, and the first A terminal device decoding the data according to the second precoding granularity includes:
  • the first subchannel occupied by the first part of the data channel is divided into Data sets, using G precoding matrix pairs
  • the data on the data groups are decoded; the first subchannel is the subchannel occupied by the control channel in the M subchannels; G is greater than or equal to 1 and less than or equal to According to the second precoding granularity, each second sub-channel occupied by the first part of the data channel is divided into First data group, using F precoding matrix pairs
  • the data on the first data group is decoded; the second subchannel is the subchannel except the first subchannel among the subchannels occupied by the first part of the data channel; F is greater than or equal to 1 and less than or equal to According to the second precoding granularity, each sub-channel occupied by the second part of the data channel is divided into A second data group, using H precoding matrix pairs The data on the second data group is decoded; H is greater
  • the number of resource blocks included in the last data group in each data group is equal to The number of resource blocks in the last data group in the first data group is equal to The number of resource blocks included in the last data group in the second data group is
  • FIG. 27 shows a possible structural schematic diagram of the communication device involved in the foregoing embodiment.
  • the communication device shown in FIG. 27 may be the first terminal device or the second terminal device described in the embodiment of the present application, or may be a component in the first terminal device or the second terminal device that implements the foregoing method.
  • the communication device includes a processing unit 2701 and a transceiver unit 2702.
  • the processing unit may be one or more processors, and the transceiver unit 2702 may be a transceiver.
  • the processing unit 2701 is configured to support the first terminal device to perform step 701 and/or other processes used in the technology described herein. Specifically, the processing unit 2701 precodes the data on the data channel according to the first precoding granularity or the second precoding granularity to obtain the data to be sent, where the first precoding granularity is a subchannel, and the The second precoding granularity is smaller than the subchannel.
  • the transceiver unit 2702 is configured to support the first terminal device to perform step 702 and/or other processes used in the technology described herein. Specifically, the transceiver unit 2702 sends the data to be sent to the second terminal device.
  • the data channel occupies N sub-channels, where N is an integer greater than 1, and the processing unit 2701 performs precoding on the data on the data channel according to the first precoding granularity, including:
  • the first part of the data channel is divided into N-1 precoding resource block groups and the first resource region;
  • the first resource region is the part where the frequency domain of the first subchannel and the control channel do not overlap, and the first subchannel
  • the channel is the sub-channel occupied by the control channel among the N sub-channels;
  • the processing unit 2701 is further configured to use P precoding matrices to precode data on the N-1 precoding resource block groups, where P is a positive integer greater than or equal to 1 and less than or equal to N-1;
  • the first resource area is divided into Y precoding resource block groups.
  • the resource blocks contained in any one of the Y precoding resource block groups are continuous.
  • the processing unit 2701 is further configured to utilize X precoding resource block groups.
  • the coding matrix precodes the data on the Y precoding resource block groups; Y is an integer greater than or equal to 1, and X is an integer greater than or equal to 1 and less than or equal to Y;
  • the second part of the data channel is divided into N precoding resource block groups, and the processing unit 2701 is further configured to precode data on the N precoding resource block groups by using Z precoding matrices;
  • Each of the N precoding resource block groups includes one subchannel, and Z is an integer greater than or equal to 1 and less than or equal to N.
  • the data channel occupies one sub-channel
  • the processing unit 2701 is configured to precode data on the data channel according to the first precoding granularity, including:
  • the first part of the data channel is divided into S precoding resource block groups.
  • the resource blocks contained in any one of the S precoding resource block groups are continuous.
  • the processing unit 2701 is also used to utilize T precoding resource block groups.
  • the coding matrix precodes data on S precoding resource block groups; S is an integer greater than or equal to 1, and T is an integer greater than or equal to 1 and less than or equal to S;
  • the second part of the data channel is a precoding resource block group
  • the processing unit 2701 is further configured to use a precoding matrix to precode data on a precoding resource block group.
  • the data channel occupies M sub-channels, M is an integer greater than or equal to 1, each sub-channel includes K resource blocks, the second precoding granularity is Q resource blocks, and Q is an integer less than K,
  • the processing unit 2701 performs precoding on the data on the data channel according to the second precoding granularity, including:
  • the processing unit 2701 is also used to use R precoding matrix pairs Data on the precoding resource block groups are precoded; R is greater than or equal to 1 and less than or equal to The integer.
  • the number of resource blocks included in the last precoding resource block group in each precoding resource block group is the number of resource blocks included in the last precoding resource block group in each precoding resource block group.
  • the data channel occupies M subchannels, M is an integer greater than 1, each subchannel includes K resource blocks, the second precoding granularity is Q resource blocks, and Q is an integer less than K; processing
  • the unit 2701 is configured to precode data on the data channel according to the second precoding granularity, and includes:
  • the subchannels are sequentially divided into Precoding resource block groups, using L precoding matrix pairs Data on the precoding resource block groups are precoded; L is greater than or equal to 1 and less than or equal to The integer.
  • the number of resource blocks included in the last precoding resource block group in each precoding resource block group is equal to
  • the data channel occupies M subchannels, M is an integer greater than or equal to 1, the subchannel includes K resource blocks, the second precoding granularity is Q resource blocks, Q is an integer less than K, and the first A terminal device precoding data on the data channel according to the second precoding granularity includes:
  • the processing unit 2701 is further configured to use D precoding matrix pairs Data on a precoding resource block group is precoded;
  • X is the number of resource blocks occupied by the control channel, and D is greater than or equal to 1 and less than or equal to Integer
  • the processing unit 2701 Starting from the frequency domain start resource block of the second part of the data channel, according to the second precoding granularity, the second part of the data channel is divided into Precoding resource block groups, the processing unit 2701, is also used to use W precoding matrix pairs The data on the precoding resource block groups are precoded, and W is greater than or equal to 1 and less than or equal to
  • the number of resource blocks included in the last precoding resource block group in each precoding resource block group is the number of resource blocks included in the last precoding resource block group in each precoding resource block group.
  • the number of resource blocks included in the last precoding resource block group in each precoding resource block group is the number of resource blocks included in the last precoding resource block group in each precoding resource block group.
  • the data channel occupies M sub-channels, M is an integer greater than 1, each sub-channel includes K resource blocks, the second precoding granularity is Q resource blocks, and Q is an integer less than K.
  • the unit 2701 performs precoding on the data on the data channel according to the second precoding granularity, including:
  • the processing unit 2701 Starting from the frequency domain start resource block of the first subchannel occupied by the first part of the data channel, according to the second precoding granularity, the first subchannel occupied by the first part of the data channel is divided into Precoding resource block groups, the processing unit 2701, is also used to use G precoding matrix pairs Data on precoding resource block groups are precoded; the first subchannel is the subchannel occupied by the control channel among the N subchannels; G is greater than or equal to 1 and less than or equal to Integer
  • each second subchannel occupied by the first part of the data channel is sequentially divided into The first precoding resource block group, the processing unit 2701, is further configured to use F precoding matrix pairs
  • the data on the first precoding resource block group is precoded;
  • the second subchannel is the subchannel except the first subchannel among the subchannels occupied by the first part of the data channel;
  • F is greater than or equal to 1 and less than or equal to Integer
  • each sub-channel occupied by the second part of the data channel is sequentially divided into The second precoding resource block group, the processing unit 2701, is further configured to use H precoding matrix pairs Data on the second precoding resource block group is precoded; H is greater than or equal to 1 and less than or equal to The integer.
  • the number of resource blocks included in the last precoding resource block group in each precoding resource block group is equal to
  • the number of resource blocks included in the last precoding resource block group in the first precoding resource block group is equal to
  • the number of resource blocks included in the last precoding resource block group in the second precoding resource block group is the number of resource blocks included in the last precoding resource block group in the second precoding resource block group.
  • the data channels in the same resource pool are precoded at the first precoding granularity or the second precoding granularity. It should be noted that all relevant content of the steps involved in the above method embodiments can be cited in the functional description of the corresponding functional module, and will not be repeated here.
  • the communication device shown in FIG. 27 may also be a chip applied to a terminal device.
  • the chip may be a System-On-a-Chip (SOC) or a baseband chip with communication function.
  • SOC System-On-a-Chip
  • the above transceiver unit 2702 for receiving/sending may be an interface circuit of the device for receiving signals from other devices.
  • the transceiver unit 2702 is an interface circuit of the chip, and the interface circuit is used to read in or output baseband signals.
  • FIG. 28 a schematic structural diagram of a communication device provided in an embodiment of the present application is shown in FIG. 28.
  • the communication device includes: a processing module 2801 and a communication module 2802.
  • the processing module 2801 is used to control and manage the actions of the communication device, for example, to perform the steps performed by the above-mentioned processing unit 2701, and/or to perform other processes of the technology described herein.
  • the communication module 2802 is used to perform the steps performed by the above-mentioned transceiver unit 2702, and supports interaction between the communication device and other devices, such as interaction with other terminal devices.
  • the communication device may further include a storage module 2803, and the storage module 2803 is used to store the program code and data of the communication device.
  • the processing module 2801 is a processor
  • the communication module 2802 is a transceiver
  • the storage module 2803 is a memory
  • the communication device is the communication device shown in FIG. 6.
  • the disclosed database access device and method can be implemented in other ways.
  • the embodiments of the database access device described above are only illustrative.
  • the division of the modules or units is only a logical function division.
  • the displayed or discussed mutual couplings or direct couplings or communication connections may be indirect couplings or communication connections through some interfaces, database access devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate parts may or may not be physically separate.
  • the parts displayed as units may be one physical unit or multiple physical units, that is, they may be located in one place, or they may be distributed to multiple different places. . Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • each unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the above-mentioned integrated unit can be implemented in the form of hardware or software functional unit.
  • the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a readable storage medium.
  • the technical solutions of the embodiments of the present application are essentially or the part that contributes to the prior art, or all or part of the technical solutions can be embodied in the form of software products, which are stored in a storage medium It includes several instructions to make a device (which may be a single-chip microcomputer, a chip, etc.) or a processor execute all or part of the steps of the method described in each embodiment of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, ROM, RAM, magnetic disk or optical disk and other media that can store program codes.

Landscapes

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

Abstract

本申请实施例公开了一种数据发送方法、数据接收方法及装置，涉及通信领域，特别涉及V2X，车联网，智能网联车，智能驾驶，自动驾驶等领域，能够尽可能避免相邻子信道的数据使用同样的预编码矩阵进行预编码，提升传输可靠性。包括：第一终端装置根据第一预编码粒度或第二预编码粒度对数据信道上的数据进行预编码，获得待发送的数据，其中，所述第一预编码粒度为子信道，所述第二预编码粒度小于所述子信道；所述第一终端装置向第二终端装置发送所述待发送的数据。

Description

一种数据发送方法、数据接收方法及装置
本申请要求于2019年8月16日提交国家知识产权局、申请号为201910760834.5、申请名称为“一种数据发送方法、数据接收方法及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉通信领域，尤其涉及一种数据发送方法、数据接收方法及装置。
背景技术
多输入多输出(Multiple-Input Multiple-Output，MIMO)技术是指在发射端和接收端分别使用一个或多个发射天线和一个或多个接收天线。可以通过多天线来抑制信道衰落，同时可以增加系统容量。MIMO技术中，发送端需要对待发送的数据进行预编码，以对传输过程中的干扰，提升传输可靠性。具体地，发送端可以根据一定的预编码粒度在数据信道上划分预编码资源块组(precoding resource block bundling group，PRG)，针对每一个PRG使用预编码矩阵进行预编码。
NR下行配置的预编码粒度为{2RB，4RB，宽带}，主要适用于下行的帧结构，即数据信道带宽内的所有频域资源采用相同的预编码矩阵进行编码，此外，还可以以2个RB或者4个RB为单元划分PRG，进行预编码。
在侧行(sidelink)通信场景中，目前还没有应用MIMO技术的方案，也没有划分预编码资源块组的具体方案。由于侧行(Sidelink)链路上的帧结构与NR下行的帧结构不同，NR下行的预编码方案并不适用于侧行链路上的帧结构。按照NR下行的预编码方案在侧行通信中进行预编码，可能降低传输可靠性。
发明内容
本申请实施例提供一种数据发送方法方法、数据接收方法及装置，根据侧行链路的帧结构进行预编码，提升侧行链路上的数据传输可靠性。
为达到上述目的，本申请实施例采用如下技术方案：
第一方面，提供了一种数据发送方法，包括：第一终端装置根据第一预编码粒度或第二预编码粒度对数据信道上的数据进行预编码，获得待发送的数据，其中，第一预编码粒度为子信道，第二预编码粒度小于子信道；第一终端装置可以向第二终端装置发送所述待发送的数据。
本申请实施例中，根据侧行链路的帧结构配置了不同与NR下行配置的预编码粒度，例如，第一预编码粒度和第二预编码粒度。进而可以根据第一预编码粒度和第二预编码粒度划分预编码资源块组，可以提升侧行链路上的传输可靠性。例如，根据子信道为粒度划分PRG后，一个子信道作为一个PRG进行预编码，即利用相同的预编码矩阵对同一个子信道上映射的数据进行预编码，尽可能避免跨子信道预编码，也即避免相邻子信道上的数据使用同样的预编码矩阵进行预编码，提升传输可靠性。另外，在窄带预编码方案中，可以根据子信道的带宽配置小于子信道的预编码粒度，采用小于子信道的粒度划分PRG进行预编码，不仅仅局限于NR下行配置的预编码粒度，适用于侧行链路的帧结构，配置的灵活性更高。
在一种可能的设计中，数据信道占用N个子信道，N为大于1的整数，第一终端装置根据第一预编码粒度对数据信道上的数据进行预编码，包括：根据第一预编码粒度，数据信道第一部分划分为N-1个预编码资源块组和第一资源区域；第一资源区域为第一子信道与控制信道频域不重叠的部分，第一子信道为N个子信道中控制信道占用的子信道；利用P个预编码矩阵对N-1个预编码资源块组上的数据进行预编码，P为大于或等于1且小于或等于N-1的正整数；此外，第一资源区域划分为Y个预编码资源块组，Y个预编码资源块组中的任意一个预编码资源块组中包含的资源块是连续的，利用X个预编码矩阵对Y个预编码资源块组上的数据进行预编码；Y为大于等于1的整数，X为大于等于1且小于或等于Y的整数；根据第一预编码粒度，数据信道第二部分划分为N个预编码资源块组，利用Z个预编码矩阵对N个预编码资源块组上的数据进行预编码；N个预编码资源块组中的每一个预编码资源块组包含一个子信道，Z为大于或等于1且小于或等于N的整数。其中，数据信道第一部分为数据信道中，与控制信道频域不重叠且存在时域重叠的部分；数据信道第二部分为数据信道中，与控制信道时域不重叠且存在频域重叠的部分。
本申请实施例中，以子信道为粒度划分预编码资源块组，不会出现跨子信道预编码，提高传输可靠性。另外，频域宽度不足子信道的连续资源块也可以作为预编码资源块组，独立进行预编码，同样也可以避免跨子信道预编码，提高传输可靠性。
在一种可能的设计中，数据信道占用一个子信道，第一终端装置根据第一预编码粒度对数据信道上的数据进行预编码，包括：数据信道第一部分划分为S个预编码资源块组，S个预编码资源块组中的任意一个预编码资源块组中包含的资源块是连续的，利用T个预编码矩阵对S个预编码资源块组上的数据进行预编码；S为大于等于1的整数，T为大于或等于1且小于或等于S的整数；数据信道第二部分为一个预编码资源块组，利用一个预编码矩阵对一个预编码资源块组上的数据进行预编码；其中，数据信道第一部分为数据信道中，与控制信道频域不重叠且存在时域重叠的部分；数据信道第二部分为数据信道中，与控制信道时域不重叠且存在频域重叠的部分。
本申请实施例中，以子信道为粒度划分预编码资源块组，不会出现跨子信道预编码，提高传输可靠性。另外，频域宽度不足子信道的连续资源块也可以作为预编码资源块组，独立进行预编码，同样也可以避免跨子信道预编码，提高传输可靠性。
在一种可能的设计中，数据信道占用M个子信道，M为大于等于1的整数，每个子信道包括K个资源块，第二预编码粒度为Q个资源块，Q为小于K的整数，第一终端装置根据第二预编码粒度对数据信道上的数据进行预编码，包括：
从数据信道的频域起始资源块开始，根据第二预编码粒度，数据信道依次划分为
Figure PCTCN2020109015-appb-000001
个预编码资源块组，利用R个预编码矩阵对
Figure PCTCN2020109015-appb-000002
个预编码资源块组上的数据进行预编码；R为大于或等于1且小于或等于
Figure PCTCN2020109015-appb-000003
的整数。
本申请实施例中，将数据信道作为一个整体以小于子信道的粒度划分预编码资源块组，不仅仅局限于NR下行配置的预编码粒度，更具灵活性，适用于侧行链路的帧结构。
在一种可能的设计中，
Figure PCTCN2020109015-appb-000004
个预编码资源块组中最后一个预编码资源块组包括的资源块的数量为
Figure PCTCN2020109015-appb-000005
本申请实施例中，将数据信道作为一个整体划分预编码资源块组，当数据信道占用的资源块总数量不能被预编码粒度Q整除，最后一个预编码资源块组包括的资源块数量不足Q。当数据信道占用的资源块总数量可以被预编码粒度Q整除，所有预编码资源块组包括的资源块数量为Q。
在一种可能的设计中，数据信道占用M个子信道，M为大于1的整数，每个子信道包括K个资源块，第二预编码粒度为Q个资源块，Q为小于K的整数；第一终端装置根据第二预编码粒度对数据信道上的数据进行预编码，包括：
针对N个子信道中的每一个子信道，从每一个子信道的频域起始资源块开始，根据第二预编码粒度子信道依次划分成
Figure PCTCN2020109015-appb-000006
个预编码资源块组，利用L个预编码矩阵对
Figure PCTCN2020109015-appb-000007
个预编码资源块组上的数据进行预编码；L为大于或等于1且小于或等于
Figure PCTCN2020109015-appb-000008
的整数。
本申请实施例中，针对数据信道占用的每一个子信道以小于子信道的粒度划分预编码资源块组，不仅仅局限于NR下行配置的预编码粒度，更具灵活性，适用于侧行链路的帧结构。
在一种可能的设计中，
Figure PCTCN2020109015-appb-000009
个预编码资源块组中最后一个预编码资源块组包括的资源块的数量等于
Figure PCTCN2020109015-appb-000010
本申请实施例中，针对数据信道占用的每一个子信道，独立划分预编码资源块组。当子信道占用的资源块数量不能被预编码粒度Q整除，子信道上划分的最后一个预编码资源块组包括的资源块数量不足Q。当子信道占用的资源块数量可以被预编码粒度Q整除，子信道上划分的预编码资源块组包括的资源块数量为Q。
在一种可能的设计中，数据信道占用M个子信道，M为大于等于1的整数，子信道包括K个资源块，第二预编码粒度为Q个资源块，Q为小于K的整数，第一终端装置根据第二预编码粒度对数据信道上的数据进行预编码，包括：
从数据信道第一部分的频域起始资源块开始，根据第二预编码粒度，数据信道第一部分依次划分成
Figure PCTCN2020109015-appb-000011
个预编码资源块组；利用D个预编码矩阵对
Figure PCTCN2020109015-appb-000012
个预编码资源块组上的数据进行预编码；X为控制信道占用的资源块的数量，D为大于或等于1且小于或等于
Figure PCTCN2020109015-appb-000013
的整数；从数据信道第二部分的频域起始资源块开始，根据第二预编码粒度，数据信道第二部分依次划分成
Figure PCTCN2020109015-appb-000014
个预编码资源块组，利用W个预编码矩阵对
Figure PCTCN2020109015-appb-000015
个预编码资源块组上的数据进行预编码，W为大于或等于1且小于或等于
Figure PCTCN2020109015-appb-000016
其中，数据信道第一部分为数据信道中，与控制信道频域不重叠且存在时域重叠的部分；数据信道第二部分为数据信道中，与控制信道时域不重叠且存在频域重叠的部分。
本申请实施例中，将数据信道第一部分作为一个整体以小于子信道的粒度划分预编码资源块组，将数据信道第二部分作为一个整体以小于子信道的粒度划分预编码资源块组，不仅仅局限于NR下行配置的预编码粒度，更具灵活性，适用于侧行链路的帧结构。
在一种可能的设计中，
Figure PCTCN2020109015-appb-000017
个预编码资源块组中最后一个预编码资 源块组包括的资源块的数量为
Figure PCTCN2020109015-appb-000018
Figure PCTCN2020109015-appb-000019
个预编码资源块组中最后一个预编码资源块组包括的资源块的数量为
Figure PCTCN2020109015-appb-000020
本申请实施例中，针对数据信道占用的每一个子信道，独立划分预编码资源块组。当子信道占用的资源块数量不能被预编码粒度Q整除，子信道上划分的最后一个预编码资源块组包括的资源块数量不足Q。当子信道占用的资源块数量可以被预编码粒度Q整除，子信道上划分的预编码资源块组包括的资源块数量为Q。
在一种可能的设计中，数据信道占用M个子信道，M为大于1的整数，每个子信道包括K个资源块，第二预编码粒度为Q个资源块，Q为小于K的整数，第一终端装置根据第二预编码粒度对数据信道上的数据进行预编码，包括：从数据信道第一部分占用的第一子信道的频域起始资源块开始，根据第二预编码粒度，数据信道第一部分占用的第一子信道依次划分为
Figure PCTCN2020109015-appb-000021
个预编码资源块组，利用G个预编码矩阵对
Figure PCTCN2020109015-appb-000022
个预编码资源块组上的数据进行预编码；第一子信道为M个子信道中控制信道占用的子信道；G为大于或等于1且小于或等于
Figure PCTCN2020109015-appb-000023
的整数；根据第二预编码粒度将数据信道第一部分占用的每一个第二子信道依次划分为
Figure PCTCN2020109015-appb-000024
个第一预编码资源块组，利用F个预编码矩阵对
Figure PCTCN2020109015-appb-000025
个第一预编码资源块组上的数据进行预编码；第二子信道是数据信道第一部分占用的子信道中除第一子信道外的其他子信道；F为大于或等于1且小于或等于
Figure PCTCN2020109015-appb-000026
的整数；根据第二预编码粒度将数据信道第二部分占用的每一个子信道依次划分为
Figure PCTCN2020109015-appb-000027
个第二预编码资源块组，利用H个预编码矩阵对
Figure PCTCN2020109015-appb-000028
个第二预编码资源块组上的数据进行预编码；H为大于或等于1且小于或等于
Figure PCTCN2020109015-appb-000029
的整数；其中，数据信道第一部分为数据信道中，与控制信道频域不重叠且存在时域重叠的部分；数据信道第二部分为数据信道中，与控制信道时域不重叠且存在频域重叠的部分。
本申请实施例中，将数据信道第一部分占用的每一个子信道作为一个整体以小于子信道的粒度划分预编码资源块组，将数据信道第二部分占用的每一个子信道作为一个整体以小于子信道的粒度划分预编码资源块组，不仅仅局限于NR下行配置的预编码粒度，更具灵活性，适用于侧行链路的帧结构。
在一种可能的设计中，
Figure PCTCN2020109015-appb-000030
个预编码资源块组中最后一个预编码资源块组包括的资源块的数量等于
Figure PCTCN2020109015-appb-000031
Figure PCTCN2020109015-appb-000032
个第一预编码资源块组中最后一个预编码资源块组包括的资源块的数量等于
Figure PCTCN2020109015-appb-000033
Figure PCTCN2020109015-appb-000034
个第二预编码资源块组中最后一个预编码资源块组包括的资源块的数量为
Figure PCTCN2020109015-appb-000035
本申请实施例中，针对数据信道占用的每一个子信道，独立划分预编码资源块组。当子信道占用的资源块数量不能被预编码粒度Q整除，子信道上划分的最后一个预编码资源块组包括的资源块数量不足Q。当子信道占用的资源块数量可以被预编码粒度Q整除，子信道上划分的预编码资源块组包括的资源块数量为Q。
在一种可能的设计中，在同一资源池中的数据信道以第一预编码粒度或第二预编 码粒度进行预编码。
本申请实施例中，同一资源池(例如，sidelink资源池)中的数据信道配置相同的预编码粒度，要么均采用宽带预编码方案，即均以第一预编码粒度进行预编码；要么均采用窄带预编码方案，即均以第二预编码粒度进行预编码。
在一种可能的设计中，所述第一预编码粒度或所述第二预编码粒度为网络侧通过无线资源控制RRC信令配置的。
第二方面，提供了一种数据接收方法，包括：第二终端装置接收来自第一终端装置的数据，根据第一预编码粒度或第二预编码粒度对所述数据进行解码，获得第一终端装置向第二终端装置发送的数据，其中，第一预编码粒度为子信道，第二预编码粒度小于子信道。
在一种可能的设计中，第一终端装置与第二终端装置之间的数据信道占用N个子信道，N为大于1的整数，第二终端装置根据第一预编码粒度或第二预编码粒度对所述数据进行解码，包括：根据第一预编码粒度，数据信道第一部分划分为N-1个数据组和第一资源区域；第一资源区域为第一子信道与控制信道频域不重叠的部分，第一子信道为N个子信道中控制信道占用的子信道；利用P个预编码矩阵对N-1个数据组上的数据进行解码，P为大于或等于1且小于或等于N-1的正整数；第一资源区域划分为Y个数据组，Y个数据组中的任意一个数据组中包含的资源块是连续的，利用X个预编码矩阵对Y个数据组上的数据进行解码；Y为大于等于1的整数，X为大于等于1且小于或等于Y的整数；根据第一预编码粒度，数据信道第二部分划分为N个数据组，利用Z个预编码矩阵对N个数据组上的数据进行解码；N个数据组中的每一个数据组包含一个子信道，Z为大于或等于1且小于或等于N的整数；其中，数据信道第一部分为数据信道中，与控制信道频域不重叠且存在时域重叠的部分；数据信道第二部分为数据信道中，与控制信道时域不重叠且存在频域重叠的部分。
在一种可能的设计中，第一终端装置与第二终端装置之间的数据信道占用一个子信道，第二终端装置根据第一预编码粒度或第二预编码粒度对所述数据进行解码，包括：数据信道第一部分划分为S个数据组，S个数据组中的任意一个数据组中包含的资源块是连续的，利用T个预编码矩阵对S个数据组上的数据进行解码；S为大于等于1的整数，T为大于或等于1且小于或等于S的整数；数据信道第二部分为一个数据组，利用一个预编码矩阵对一个数据组上的数据进行解码；其中，数据信道第一部分为数据信道中，与控制信道频域不重叠且存在时域重叠的部分；数据信道第二部分为数据信道中，与控制信道时域不重叠且存在频域重叠的部分。
在一种可能的设计中，第一终端装置与第二终端装置之间的数据信道占用M个子信道，M为大于等于1的整数，每个子信道包括K个资源块，第二预编码粒度为Q个资源块，Q为小于K的整数，第二终端装置根据第一预编码粒度或第二预编码粒度对所述数据进行解码，包括：
从数据信道的频域起始资源块开始，根据第二预编码粒度，数据信道依次划分为
Figure PCTCN2020109015-appb-000036
个数据组，利用R个预编码矩阵对
Figure PCTCN2020109015-appb-000037
个数据组上的数据进行解码；R为大于或等于1且小于或等于
Figure PCTCN2020109015-appb-000038
的整数。
结合第二方面的第三种可能的实现方式，在第二方面的第四种可能的实现方式中
Figure PCTCN2020109015-appb-000039
个数据组中最后一个数据组包括的资源块的数量为
Figure PCTCN2020109015-appb-000040
在一种可能的设计中，第一终端装置与第二终端装置之间的数据信道占用M个子信道，M为大于1的整数，每个子信道包括K个资源块，第二预编码粒度为Q个资源块，Q为小于K的整数；第一终端装置根据第二预编码粒度对所述数据进行解码，包括：
针对N个子信道中的每一个子信道，从每一个子信道的频域起始资源块开始，根据第二预编码粒度子信道依次划分成
Figure PCTCN2020109015-appb-000041
个数据组，利用L个预编码矩阵对
Figure PCTCN2020109015-appb-000042
个数据组上的数据进行解码；L为大于或等于1且小于或等于
Figure PCTCN2020109015-appb-000043
的整数。
在一种可能的设计，在第二方面的第六种可能的实现方式中，
Figure PCTCN2020109015-appb-000044
个数据组中最后一个数据组包括的资源块的数量等于
Figure PCTCN2020109015-appb-000045
在一种可能的设计，第一终端装置与第二终端装置之间的数据信道占用M个子信道，M为大于等于1的整数，子信道包括K个资源块，第二预编码粒度为Q个资源块，Q为小于K的整数，第二终端装置根据第一预编码粒度或第二预编码粒度对所述数据进行解码，包括：从数据信道第一部分的频域起始资源块开始，根据第二预编码粒度，数据信道第一部分依次划分成
Figure PCTCN2020109015-appb-000046
个数据组；利用D个预编码矩阵对
Figure PCTCN2020109015-appb-000047
个数据组上的数据进行解码；X为控制信道占用的资源块的数量，D为大于或等于1且小于或等于
Figure PCTCN2020109015-appb-000048
的整数；从数据信道第二部分的频域起始资源块开始，根据第二预编码粒度，数据信道第二部分依次划分成
Figure PCTCN2020109015-appb-000049
个数据组，利用W个预编码矩阵对
Figure PCTCN2020109015-appb-000050
个数据组上的数据进行解码，W为大于或等于1且小于或等于
Figure PCTCN2020109015-appb-000051
其中，数据信道第一部分为数据信道中，与控制信道频域不重叠且存在时域重叠的部分；数据信道第二部分为数据信道中，与控制信道时域不重叠且存在频域重叠的部分。
在一种可能的设计中，
Figure PCTCN2020109015-appb-000052
个数据组中最后一个数据组包括的资源块的数量为
Figure PCTCN2020109015-appb-000053
Figure PCTCN2020109015-appb-000054
个数据组中最后一个数据组包括的资源块的数量为
Figure PCTCN2020109015-appb-000055
在一种可能的设计中，数据信道占用M个子信道，M为大于1的整数，每个子信道包括K个资源块，第二预编码粒度为Q个资源块，Q为小于K的整数，第一终端装置根据第二预编码粒度对所述数据进行解码，包括：
从数据信道第一部分占用的第一子信道的频域起始资源块开始，根据第二预编码粒度，数据信道第一部分占用的第一子信道依次划分为
Figure PCTCN2020109015-appb-000056
个数据组，利用G个预编码矩阵对
Figure PCTCN2020109015-appb-000057
个数据组上的数据进行解码；第一子信道为M个子信道中控制信道占用的子信道；G为大于或等于1且小于或等于
Figure PCTCN2020109015-appb-000058
的整数；根据第二预编码粒度将数据信道第一部分占用的每一个第二子信道依次划分为
Figure PCTCN2020109015-appb-000059
个第一数据组，利用F个预编码矩阵对
Figure PCTCN2020109015-appb-000060
个第一数据组上的数据进行解码；第二子信道是数据信道第一部分占用的子信道中除第一子信道外的其他子信道；F 为大于或等于1且小于或等于
Figure PCTCN2020109015-appb-000061
的整数；根据第二预编码粒度将数据信道第二部分占用的每一个子信道依次划分为
Figure PCTCN2020109015-appb-000062
个第二数据组，利用H个预编码矩阵对
Figure PCTCN2020109015-appb-000063
个第二数据组上的数据进行解码；H为大于或等于1且小于或等于
Figure PCTCN2020109015-appb-000064
的整数；其中，数据信道第一部分为数据信道中，与控制信道频域不重叠且存在时域重叠的部分；数据信道第二部分为数据信道中，与控制信道时域不重叠且存在频域重叠的部分。
在一种可能的设计中，
Figure PCTCN2020109015-appb-000065
个数据组中最后一个数据组包括的资源块的数量等于
Figure PCTCN2020109015-appb-000066
Figure PCTCN2020109015-appb-000067
个第一数据组中最后一个数据组包括的资源块的数量等于
Figure PCTCN2020109015-appb-000068
Figure PCTCN2020109015-appb-000069
个第二数据组中最后一个数据组包括的资源块的数量为
Figure PCTCN2020109015-appb-000070
第三方面，提供了一种第一终端装置，包括：处理单元，用于根据第一预编码粒度或第二预编码粒度对数据信道上的数据进行预编码，获得待发送的数据，其中，第一预编码粒度为子信道，第二预编码粒度小于子信道；通信单元，用于向第二终端装置发送所述待发送的数据。
本申请实施例根据子信道为粒度划分PRG后，一个子信道作为一个PRG进行预编码，即利用相同的预编码矩阵对同一个子信道上映射的数据进行预编码，尽可能避免跨子信道预编码，也即避免相邻子信道上的数据使用同样的预编码矩阵进行预编码，提升传输可靠性。另外，在窄带预编码方案中，可以根据子信道的带宽配置小于子信道的预编码粒度，采用小于子信道的粒度划分PRG进行预编码，不仅仅局限于NR下行配置的预编码粒度，更具灵活性，适用于侧行链路的帧结构。
在一种可能的设计中，数据信道占用N个子信道，N为大于1的整数，根据第一预编码粒度，数据信道第一部分划分为N-1个预编码资源块组和第一资源区域；第一资源区域为第一子信道与控制信道频域不重叠的部分，第一子信道为N个子信道中控制信道占用的子信道；处理单元，还用于利用P个预编码矩阵对N-1个预编码资源块组上的数据进行预编码，P为大于或等于1且小于或等于N-1的正整数；此外，第一资源区域划分为Y个预编码资源块组，Y个预编码资源块组中的任意一个预编码资源块组中包含的资源块是连续的，利用X个预编码矩阵对Y个预编码资源块组上的数据进行预编码；Y为大于等于1的整数，X为大于等于1且小于或等于Y的整数；根据第一预编码粒度，数据信道第二部分划分为N个预编码资源块组，处理单元，还用于利用Z个预编码矩阵对N个预编码资源块组上的数据进行预编码；N个预编码资源块组中的每一个预编码资源块组包含一个子信道，Z为大于或等于1且小于或等于N的整数。其中，数据信道第一部分为数据信道中，与控制信道频域不重叠且存在时域重叠的部分；数据信道第二部分为数据信道中，与控制信道时域不重叠且存在频域重叠的部分。
本申请实施例中，以子信道为粒度划分预编码资源块组，不会出现跨子信道预编码，提高传输可靠性。另外，频域宽度不足子信道的连续资源块也可以作为预编码资源块组，独立进行预编码，同样也可以避免跨子信道预编码，提高传输可靠性。
在一种可能的设计中，数据信道占用一个子信道，数据信道第一部分划分为S个 预编码资源块组，S个预编码资源块组中的任意一个预编码资源块组中包含的资源块是连续的，处理单元，还用于利用T个预编码矩阵对S个预编码资源块组上的数据进行预编码；S为大于等于1的整数，T为大于或等于1且小于或等于S的整数；数据信道第二部分为一个预编码资源块组，处理单元，还用于利用一个预编码矩阵对一个预编码资源块组上的数据进行预编码；其中，数据信道第一部分为数据信道中，与控制信道频域不重叠且存在时域重叠的部分；数据信道第二部分为数据信道中，与控制信道时域不重叠且存在频域重叠的部分。
本申请实施例中，以子信道为粒度划分预编码资源块组，不会出现跨子信道预编码，提高传输可靠性。另外，频域宽度不足子信道的连续资源块也可以作为预编码资源块组，独立进行预编码，同样也可以避免跨子信道预编码，提高传输可靠性。
在一种可能的设计中，数据信道占用M个子信道，M为大于等于1的整数，每个子信道包括K个资源块，第二预编码粒度为Q个资源块，Q为小于K的整数，从数据信道的频域起始资源块开始，根据第二预编码粒度，数据信道依次划分为
Figure PCTCN2020109015-appb-000071
个预编码资源块组，处理单元，还用于利用R个预编码矩阵对
Figure PCTCN2020109015-appb-000072
个预编码资源块组上的数据进行预编码；R为大于或等于1且小于或等于
Figure PCTCN2020109015-appb-000073
的整数。
本申请实施例中，将数据信道作为一个整体以小于子信道的粒度划分预编码资源块组，不仅仅局限于NR下行配置的预编码粒度，更具灵活性，适用于侧行链路的帧结构。
在一种可能的设计中，
Figure PCTCN2020109015-appb-000074
个预编码资源块组中最后一个预编码资源块组包括的资源块的数量为
Figure PCTCN2020109015-appb-000075
本申请实施例中，将数据信道作为一个整体划分预编码资源块组，当数据信道占用的资源块总数量不能被预编码粒度Q整除，最后一个预编码资源块组包括的资源块数量不足Q。当数据信道占用的资源块总数量可以被预编码粒度Q整除，所有预编码资源块组包括的资源块数量为Q。
在一种可能的设计中，数据信道占用M个子信道，M为大于1的整数，每个子信道包括K个资源块，第二预编码粒度为Q个资源块，Q为小于K的整数；针对N个子信道中的每一个子信道，从每一个子信道的频域起始资源块开始，根据第二预编码粒度子信道依次划分成
Figure PCTCN2020109015-appb-000076
个预编码资源块组，处理单元，还用于利用L个预编码矩阵对
Figure PCTCN2020109015-appb-000077
个预编码资源块组上的数据进行预编码；L为大于或等于1且小于或等于
Figure PCTCN2020109015-appb-000078
的整数。
本申请实施例中，针对数据信道占用的每一个子信道以小于子信道的粒度划分预编码资源块组，不仅仅局限于NR下行配置的预编码粒度，更具灵活性，适用于侧行链路的帧结构。
在一种可能的设计中，
Figure PCTCN2020109015-appb-000079
个预编码资源块组中最后一个预编码资源块组包括的资源块的数量等于
Figure PCTCN2020109015-appb-000080
本申请实施例中，针对数据信道占用的每一个子信道，独立划分预编码资源块组。当子信道占用的资源块数量不能被预编码粒度Q整除，子信道上划分的最后一个预编 码资源块组包括的资源块数量不足Q。当子信道占用的资源块数量可以被预编码粒度Q整除，子信道上划分的预编码资源块组包括的资源块数量为Q。
在一种可能的设计中，数据信道占用M个子信道，M为大于等于1的整数，子信道包括K个资源块，第二预编码粒度为Q个资源块，Q为小于K的整数，从数据信道第一部分的频域起始资源块开始，根据第二预编码粒度，数据信道第一部分依次划分成
Figure PCTCN2020109015-appb-000081
个预编码资源块组；处理单元，还用于利用D个预编码矩阵对
Figure PCTCN2020109015-appb-000082
个预编码资源块组上的数据进行预编码；X为控制信道占用的资源块的数量，D为大于或等于1且小于或等于
Figure PCTCN2020109015-appb-000083
的整数；从数据信道第二部分的频域起始资源块开始，根据第二预编码粒度，数据信道第二部分依次划分成
Figure PCTCN2020109015-appb-000084
个预编码资源块组，处理单元，还用于利用W个预编码矩阵对
Figure PCTCN2020109015-appb-000085
个预编码资源块组上的数据进行预编码，W为大于或等于1且小于或等于
Figure PCTCN2020109015-appb-000086
其中，数据信道第一部分为数据信道中，与控制信道频域不重叠且存在时域重叠的部分；数据信道第二部分为数据信道中，与控制信道时域不重叠且存在频域重叠的部分。
本申请实施例中，将数据信道第一部分作为一个整体以小于子信道的粒度划分预编码资源块组，将数据信道第二部分作为一个整体以小于子信道的粒度划分预编码资源块组，不仅仅局限于NR下行配置的预编码粒度，更具灵活性，适用于侧行链路的帧结构。
在一种可能的设计中，
Figure PCTCN2020109015-appb-000087
个预编码资源块组中最后一个预编码资源块组包括的资源块的数量为
Figure PCTCN2020109015-appb-000088
Figure PCTCN2020109015-appb-000089
个预编码资源块组中最后一个预编码资源块组包括的资源块的数量为
Figure PCTCN2020109015-appb-000090
本申请实施例中，针对数据信道占用的每一个子信道，独立划分预编码资源块组。当子信道占用的资源块数量不能被预编码粒度Q整除，子信道上划分的最后一个预编码资源块组包括的资源块数量不足Q。当子信道占用的资源块数量可以被预编码粒度Q整除，子信道上划分的预编码资源块组包括的资源块数量为Q。
在一种可能的设计中，数据信道占用M个子信道，M为大于1的整数，每个子信道包括K个资源块，第二预编码粒度为Q个资源块，Q为小于K的整数，从数据信道第一部分占用的第一子信道的频域起始资源块开始，根据第二预编码粒度，数据信道第一部分占用的第一子信道依次划分为
Figure PCTCN2020109015-appb-000091
个预编码资源块组，处理单元，还用于利用G个预编码矩阵对
Figure PCTCN2020109015-appb-000092
个预编码资源块组上的数据进行预编码；第一子信道为M个子信道中控制信道占用的子信道；G为大于或等于1且小于或等于
Figure PCTCN2020109015-appb-000093
的整数；根据第二预编码粒度将数据信道第一部分占用的每一个第二子信道依次划分为
Figure PCTCN2020109015-appb-000094
个第一预编码资源块组，利用F个预编码矩阵对
Figure PCTCN2020109015-appb-000095
个第一预编码资源块组上的数据进行预编码；第二子信道是数据信道第一部分占用的子信道中除第一子信道外的其他子信道；F为大于或等于1且小于或等于
Figure PCTCN2020109015-appb-000096
的整数； 根据第二预编码粒度将数据信道第二部分占用的每一个子信道依次划分为
Figure PCTCN2020109015-appb-000097
个第二预编码资源块组，处理单元，还用于利用H个预编码矩阵对
Figure PCTCN2020109015-appb-000098
个第二预编码资源块组上的数据进行预编码；H为大于或等于1且小于或等于
Figure PCTCN2020109015-appb-000099
的整数；其中，数据信道第一部分为数据信道中，与控制信道频域不重叠且存在时域重叠的部分；数据信道第二部分为数据信道中，与控制信道时域不重叠且存在频域重叠的部分。
本申请实施例中，将数据信道第一部分占用的每一个子信道作为一个整体以小于子信道的粒度划分预编码资源块组，将数据信道第二部分占用的每一个子信道作为一个整体以小于子信道的粒度划分预编码资源块组，不仅仅局限于NR下行配置的预编码粒度，更具灵活性，适用于侧行链路的帧结构。
在一种可能的设计中，
Figure PCTCN2020109015-appb-000100
个预编码资源块组中最后一个预编码资源块组包括的资源块的数量等于
Figure PCTCN2020109015-appb-000101
Figure PCTCN2020109015-appb-000102
个第一预编码资源块组中最后一个预编码资源块组包括的资源块的数量等于
Figure PCTCN2020109015-appb-000103
Figure PCTCN2020109015-appb-000104
个第二预编码资源块组中最后一个预编码资源块组包括的资源块的数量为
Figure PCTCN2020109015-appb-000105
本申请实施例中，针对数据信道占用的每一个子信道，独立划分预编码资源块组。当子信道占用的资源块数量不能被预编码粒度Q整除，子信道上划分的最后一个预编码资源块组包括的资源块数量不足Q。当子信道占用的资源块数量可以被预编码粒度Q整除，子信道上划分的预编码资源块组包括的资源块数量为Q。
在一种可能的设计中，在同一资源池中的数据信道以第一预编码粒度或第二预编码粒度进行预编码。
本申请实施例中，同一资源池(例如，sidelink资源池)中的数据信道配置相同的预编码粒度，要么均采用宽带预编码方案，即均以第一预编码粒度进行预编码；要么均采用窄带预编码方案，即均以第二预编码粒度进行预编码。
第四方面，提供了一种第二终端装置，包括：处理单元，用于根据第一预编码粒度或第二预编码粒度对所述数据进行解码，获得第一终端装置向第二终端装置发送的数据，其中，第一预编码粒度为子信道，第二预编码粒度小于子信道。
本申请实施例根据子信道为粒度划分PRG后，一个子信道作为一个PRG进行预编码，即利用相同的预编码矩阵对同一个子信道上映射的数据进行预编码，尽可能避免跨子信道预编码，也即避免相邻子信道上的数据使用同样的预编码矩阵进行预编码，提升传输可靠性。另外，在窄带预编码方案中，可以根据子信道的带宽配置小于子信道的预编码粒度，采用小于子信道的粒度划分PRG进行预编码，不仅仅局限于NR下行配置的预编码粒度，更具灵活性，适用于侧行链路的帧结构。
在一种可能的设计中，数据信道占用N个子信道，N为大于1的整数，根据第一预编码粒度，数据信道第一部分划分为N-1个数据组和第一资源区域；第一资源区域为第一子信道与控制信道频域不重叠的部分，第一子信道为N个子信道中控制信道占用的子信道；处理单元，还用于利用P个预编码矩阵对N-1个数据组上的数据进行解码，P为大于或等于1且小于或等于N-1的正整数；第一资源区域划分为Y个数据组，Y个数据组中的任意一个数据组中包含的资源块是连续的，处理单元，还用于利用X 个预编码矩阵对Y个数据组上的数据进行解码；Y为大于等于1的整数，X为大于等于1且小于或等于Y的整数；根据第一预编码粒度，数据信道第二部分划分为N个数据组，处理单元，还用于利用Z个预编码矩阵对N个数据组上的数据进行解码；N个数据组中的每一个数据组包含一个子信道，Z为大于或等于1且小于或等于N的整数；其中，数据信道第一部分为数据信道中，与控制信道频域不重叠且存在时域重叠的部分；数据信道第二部分为数据信道中，与控制信道时域不重叠且存在频域重叠的部分。
在一种可能的设计中，数据信道占用一个子信道，数据信道第一部分划分为S个数据组，S个数据组中的任意一个数据组中包含的资源块是连续的，处理单元，还用于利用T个预编码矩阵对S个数据组上的数据进行解码；S为大于等于1的整数，T为大于或等于1且小于或等于S的整数；数据信道第二部分为一个数据组，处理单元，还用于利用一个预编码矩阵对一个数据组上的数据进行解码；其中，数据信道第一部分为数据信道中，与控制信道频域不重叠且存在时域重叠的部分；数据信道第二部分为数据信道中，与控制信道时域不重叠且存在频域重叠的部分。
在一种可能的设计中，数据信道占用M个子信道，M为大于等于1的整数，每个子信道包括K个资源块，第二预编码粒度为Q个资源块，Q为小于K的整数，从数据信道的频域起始资源块开始，处理单元，还用于根据第二预编码粒度，数据信道依次划分为
Figure PCTCN2020109015-appb-000106
个数据组，利用R个预编码矩阵对
Figure PCTCN2020109015-appb-000107
个数据组上的数据进行解码；R为大于或等于1且小于或等于
Figure PCTCN2020109015-appb-000108
的整数。
在一种可能的设计中，
Figure PCTCN2020109015-appb-000109
个数据组中最后一个数据组包括的资源块的数量为
Figure PCTCN2020109015-appb-000110
在一种可能的设计中，数据信道占用M个子信道，M为大于1的整数，每个子信道包括K个资源块，第二预编码粒度为Q个资源块，Q为小于K的整数；针对N个子信道中的每一个子信道，从每一个子信道的频域起始资源块开始，根据第二预编码粒度子信道依次划分成
Figure PCTCN2020109015-appb-000111
个数据组，处理单元，还用于利用L个预编码矩阵对
Figure PCTCN2020109015-appb-000112
个数据组上的数据进行解码；L为大于或等于1且小于或等于
Figure PCTCN2020109015-appb-000113
的整数。
在一种可能的设计中，
Figure PCTCN2020109015-appb-000114
个数据组中最后一个数据组包括的资源块的数量等于
Figure PCTCN2020109015-appb-000115
在一种可能的设计中，数据信道占用M个子信道，M为大于等于1的整数，子信道包括K个资源块，第二预编码粒度为Q个资源块，Q为小于K的整数，从数据信道第一部分的频域起始资源块开始，根据第二预编码粒度，数据信道第一部分依次划分成
Figure PCTCN2020109015-appb-000116
个数据组；处理单元，还用于利用D个预编码矩阵对
Figure PCTCN2020109015-appb-000117
个数据组上的数据进行解码；X为控制信道占用的资源块的数量，D为大于或等于1且小于或等于
Figure PCTCN2020109015-appb-000118
的整数；从数据信道第二部分的频域起始资源块开始，根据第二预编码粒度，数据信道第二部分依次划分成
Figure PCTCN2020109015-appb-000119
个数据组，处理单元，还用于利用W个预编码矩阵对
Figure PCTCN2020109015-appb-000120
个数据组上的数据进行解码，W为大于或等于1且小于或等于
Figure PCTCN2020109015-appb-000121
其中，数据信道第一部分为数据信道中，与控制信道频域不重叠且存在时域重叠的部分；数据 信道第二部分为数据信道中，与控制信道时域不重叠且存在频域重叠的部分。
在一种可能的设计中，
Figure PCTCN2020109015-appb-000122
个数据组中最后一个数据组包括的资源块的数量为
Figure PCTCN2020109015-appb-000123
Figure PCTCN2020109015-appb-000124
个数据组中最后一个数据组包括的资源块的数量为
Figure PCTCN2020109015-appb-000125
在一种可能的设计中，数据信道占用M个子信道，M为大于1的整数，每个子信道包括K个资源块，第二预编码粒度为Q个资源块，Q为小于K的整数，从数据信道第一部分占用的第一子信道的频域起始资源块开始，根据第二预编码粒度，数据信道第一部分占用的第一子信道依次划分为
Figure PCTCN2020109015-appb-000126
个数据组，处理单元，还用于利用G个预编码矩阵对
Figure PCTCN2020109015-appb-000127
个数据组上的数据进行解码；第一子信道为M个子信道中控制信道占用的子信道；G为大于或等于1且小于或等于
Figure PCTCN2020109015-appb-000128
的整数；根据第二预编码粒度将数据信道第一部分占用的每一个第二子信道依次划分为
Figure PCTCN2020109015-appb-000129
个第一数据组，处理单元，还用于利用F个预编码矩阵对
Figure PCTCN2020109015-appb-000130
个第一数据组上的数据进行解码；第二子信道是数据信道第一部分占用的子信道中除第一子信道外的其他子信道；F为大于或等于1且小于或等于
Figure PCTCN2020109015-appb-000131
的整数；根据第二预编码粒度将数据信道第二部分占用的每一个子信道依次划分为
Figure PCTCN2020109015-appb-000132
个第二数据组，处理单元，还用于利用H个预编码矩阵对
Figure PCTCN2020109015-appb-000133
个第二数据组上的数据进行解码；H为大于或等于1且小于或等于
Figure PCTCN2020109015-appb-000134
的整数；其中，数据信道第一部分为数据信道中，与控制信道频域不重叠且存在时域重叠的部分；数据信道第二部分为数据信道中，与控制信道时域不重叠且存在频域重叠的部分。
在一种可能的设计中，
Figure PCTCN2020109015-appb-000135
个数据组中最后一个数据组包括的资源块的数量等于
Figure PCTCN2020109015-appb-000136
Figure PCTCN2020109015-appb-000137
个第一数据组中最后一个数据组包括的资源块的数量等于
Figure PCTCN2020109015-appb-000138
Figure PCTCN2020109015-appb-000139
个第二数据组中最后一个数据组包括的资源块的数量为
Figure PCTCN2020109015-appb-000140
第五方面，提供了一种通信装置，包括至少一个处理器和存储器，所述至少一个处理器与所述存储器耦合；所述存储器，用于存储计算机程序；
所述至少一个处理器，用于执行所述存储器中存储的计算机程序，以使得所述装置执行如上述第一方面以及第一方面任意一种实现方式所述的方法。
第六方面，提供了一种通信装置，包括至少一个处理器和存储器，所述至少一个处理器与所述存储器耦合；所述存储器，用于存储计算机程序；
所述至少一个处理器，用于执行所述存储器中存储的计算机程序，以使得所述装置执行如上述第二方面以及第二方面任意一种实现方式所述的方法。
第七方面，提供了一种计算机可读存储介质，所述计算机可读存储介质存储有计算机程序或指令，当所述计算机程序或指令被运行时，实现上述第一方面以及第一方面任意一种实现方式所述的方法。
第八方面，提供了一种计算机可读存储介质，所述计算机可读存储介质存储有计算机程序或指令，当所述计算机程序或指令被运行时，实现上述第二方面以及第二方面任意一种实现方式所述的方法。
第九方面，公开了一种无线通信装置，包括：无线通信装置中存储有指令；当无线通信装置在上述第三方面以及第三方面任意一种实现方式所述的第一终端装置上运行时，使得通信装置执行如上述第一方面以及第一方面任意一种实现方式所述的方法，无线通信装置为芯片。
第十方面，提供了一种无线通信装置，包括：无线通信装置中存储有指令；当无线通信装置在上述上述第四方面以及第四方面任意一种实现方式所述的第二终端装置上运行时，使得通信装置执行如第二方面以及第二方面任意一种实现方式所述的方法，无线通信装置为芯片。
附图说明
图1为现有预编码方法的示意图；
图2为本申请实施例提供的时频资源示意图；
图3为本申请实施例提供的通信系统的架构图；
图4为本发明实施例提供的子信道的示意图；
图5A为本发明实施例提供的数据信道、控制信道的示意图；
图5B为本发明实施例提供的数据信道、控制信道的另一示意图；
图6为本发明实施例提供的通信装置的结构框图；
图7为本发明实施例提供的数据接收方法的流程示意图；
图8为本发明实施例提供的预编码示意图；
图9为本发明实施例提供的另一预编码示意图；
图10为本发明实施例提供的另一预编码示意图；
图11为本发明实施例提供的另一预编码示意图；
图12为本发明实施例提供的另一预编码示意图；
图13为本发明实施例提供的另一预编码示意图；
图14为本发明实施例提供的另一预编码示意图；
图15为本发明实施例提供的另一预编码示意图；
图16为本发明实施例提供的另一预编码示意图；
图17为本发明实施例提供的另一预编码示意图；
图18为本发明实施例提供的另一预编码示意图；
图19为本发明实施例提供的另一预编码示意图；
图20为本发明实施例提供的另一预编码示意图；
图21为本发明实施例提供的另一预编码示意图；
图22为本发明实施例提供的另一预编码示意图；
图23为本发明实施例提供的另一预编码示意图；
图24为本发明实施例提供的另一预编码示意图；
图25为本发明实施例提供的另一预编码示意图；
图26为本发明实施例提供的另一预编码示意图；
图27为本发明实施例提供的通信装置的另一结构框图；
图28为本发明实施例提供的通信装置的另一结构框图。
具体实施方式
下面将结合附图，对本申请中的技术方案进行描述。
首先，对本发明实施例涉及的术语进行解释说明。
(1)预编码
MIMO技术中，发送端和接收端之间可以通过多个天线进行数据收发，也就是说发送端和接收端之间存在多个空间信道，为了对抗空间信道之间的干扰，提升传输可靠性，可以使用特定的矩阵对待发送数据进行编码之后再进行发送，对待发送数据的编码过程可以称为预编码。
(2)预编码粒度
在预编码过程中，可以根据一定的粒度将数据信道划分成若干个资源块组，以划分的资源块组为单位进行预编码。其中，划分的粒度称为预编码粒度(precoding granulatrity)，划分后的资源块组称为预编码资源块组(precoding resource block bundling group，PRG)。
具体地，发送端针对每一个PRG，可以根据P＝M*S对PRG上映射的数据进行预编码。其中，S表示PRG上映射的数据，M表示预编码矩阵，P表示经过编码后待发送的数据。不同的PRG使用的预编码矩阵是独立的，可以相同也可以不同，本申请实施例对此不作限制。
示例的，参考图1，以2个资源块(resource block，RB)为粒度在数据信道上划分PRG，每2个连续的RB作为一个PRG。一种可能的实现方式中，利用不同的预编码矩阵对不同的PRG上映射的数据进行预编码。例如，图1中，利用预编码矩阵M 1对PRG1上映射的数据进行预编码，利用预编码矩阵M 2对PRG2上映射的数据进行预编码，利用预编码矩阵M i对PRG i上映射的数据进行预编码……依次类推，可选的，M 1与M i可以相同，也可以不同。
需要说明的是，预编码粒度的单位不仅仅局限于RB，还可以根据其他频域单元划分PRG，例如，以一个或多个资源元(resource element，RE)，或无线频道编号(absolute radio frequency channel number，ARFCN)指示的一个无线频道来划分PRG。其中，RB也可以称为物理资源块(physical resource block，PRB)。
图2是时频资源的示意图，其中，横坐标表示时域，纵坐标表示频域。参考图2，频域上的一个子载波和时域上的一个符号组成的时频资源为一个RE，频域上的12个连续的子载波为一个RB，参考图2，一个时隙由时域上的7个符号组成。需要说明的是，一个时隙的符号数是预定的个数，图2仅为一种示例。一个时隙的符号数可以是7个，14个，6个或12个等，并且普循环前缀和扩展循环前缀时，一个时隙内的符号数还可以不同。ARFCN是一个编号，指示了一个固定的无线频道。
需要说明的是，本发明实施例中的“符号”可以包括但不限于以下任一种：正交频分复用(orthogonal frequency division multiplexing，OFDM)符号、通用滤波多载波(universal filtered multi-carrier，UFMC)符号,滤波器组多载波(filter-band multi-carrier，FBMC)符号，广义频分多工(generalized frequency-division multiplexing，GFDM)符号等。
图3给出了本申请提供的技术方案所适用的一种通信系统的示意图，该通信系统可以包括多个网络设备(仅示出了网络设备100)以及多个终端装置(图中仅示出了 终端装置201和终端装置202)。图3仅为示意图，并不构成对本申请提供的技术方案的适用场景的限定。该通信系统支持侧行通信，如：设备到设备(device to device，D2D)通信、车对一切(vehicle to everything，V2X)通信等。
其中，网络设备和终端装置之间可以通过蜂窝链路(Uu链路)进行上下行传输，终端装置之间可以通过侧行链路(sidelink链路)进行通信，例如D2D通信、V2X通信、机器类型通信(machine type communication，MTC)等。
网络装置可以是传输接收节点(transmission reception point，TRP)、基站、中继站或接入点等。网络设备可以是5G通信系统中的网络设备或未来演进网络中的网络设备；还可以是可穿戴设备或车载设备等。另外还可以是：全球移动通信系统(global system for mobile communication，GSM)或码分多址(code division multiple access，CDMA)网络中的基站收发信台(base transceiver station，BTS)，也可以是宽带码分多址(wideband code division multiple access，WCDMA)中的NB(NodeB)，还可以是长期演进(long term evolution，LTE)中的eNB或eNodeB(evolutional NodeB)。网络设备还可以是云无线接入网络(cloud radio access network，CRAN)场景下的无线控制器。本申请实施例将以基站为例进行说明。
终端装置可以是用户设备(user equipment，UE)、接入终端装置设备、UE单元、UE站、移动站、移动台、远方站、远程终端装置设备、移动设备、UE终端设备、无线通信设备、UE代理或UE装置等。接入终端装置设备可以是蜂窝电话、无绳电话、会话发起协议(session initiation protocol，SIP)电话、无线本地环路(wireless local loop，WLL)站、个人数字处理(personal digital assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备，5G网络中的终端装置设备或未来演进的公共陆地移动网络(public land mobile network，PLMN)网络中的终端装置设备等。本申请的终端装置设备还可以是作为一个或多个部件或者单元而内置于车辆的车载模块、车载模组、车载部件、车载芯片或者车载单元，车辆通过内置的所述车载模块、车载模组、车载部件、车载芯片或者车载单元可以实施本申请的方法。本申请的第一终端装置、第二终端装置以及网络装置都可以为一个或多个芯片，也可以为片上系统(System on Chip，SOC)等。
此外，图3所示的通信系统支持MIMO技术，网络设备、终端装置可以分别使用多个发射天线和多个接收天线进行通信。例如，网络设备通过Uu链路向终端装置201或终端装置202发送下行数据时，可以使用多个发射天线发送数据，终端装置201或终端装置202可以使用多个接收天线接收数据。又或者，终端装置201和终端装置202之间通过侧行(sidelink)链路进行通信时，终端装置201可以使用多个发射天线发送数据，终端装置202可以使用多个接收天线接收数据。
例如，网络设备可以通过物理下行控制信道(physical downlink control channel，PDCCH)向终端装置传输控制信息，通过物理下行共享信道(physical downlink shared channel，PDSCH)向终端装置传输数据。网络设备可以对PDCCH上映射的数据进行预编码，通过多个发射天线发送预编码后的数据，终端装置可以通过多个接收天线接收数据。
NR下行配置的预编码粒度为{2，4，宽带}。网络设备可以按照配置的预编码粒度 在PDSCH上划分PRG。例如，当以宽带为粒度进行预编码，整个数据信道作为一个PRG，数据信道带宽内的所有频域资源采用相同的预编码矩阵进行编码。当以窄带为粒度进行预编码，例如，以2个RB或者4个RB为单元划分PRG，不同的PRG独立进行预编码。
此外，终端装置之间通过物理侧行控制信道(physical sidelink control channel，PSCCH)传输控制信息，通过物理侧行共享信道(physical sidelink shared channel，PSSCH)传输数据。
参考图4，sidelink资源池定义了子信道，作为最小的调度单元。Sidelink一个资源池中所有子信道的带宽是相同的，一个子信道在频域包括一个或多个资源块(resource block，RB)，在时域可以包括一个时隙。此外，Sidelink一个资源池中子信道的带宽也可以不同，本申请实施例对此不作限制。需要说明的是，本申请实施例中sidelink资源池上最小的调度单元不仅仅局限于子信道，还可以是其他频域单元，例如，图2所示的RB、RE、或ARFCN，本申请实施例中的子信道可以替换成sidelink资源池的其他调度单元。
通常，一个数据信道(例如，PSSCH)占用一个或者多个子信道，且与数据信道对应的控制信道(例如，PSCCH)可以映射在数据信道占用的一个或多个子信道内。参考图5A或图5B，以控制信道占用一个子信道为例，可以根据控制信道将数据信道划分为两部分，分别为partA和partB。其中，partA与控制信道有时域重叠且无频域重叠，即partA为数据信道中，与控制信道频域不重叠且存在时域重叠的部分；partB与控制信道有时域重叠且有频域重叠，即partB为数据信道中，与控制信道时域不重叠且存在频域重叠的部分。
参考图5A，控制信道的频域起始位置与数据信道的频域起始位置对齐，数据信道的partA的频谱是连续的，partB的频谱也是连续的。
参考图5B，控制信道的频域起始位置与数据信道的频域起始位置不对齐，可以把数据信道的partA隔离成两部分，即partA的频谱不连续，但partB的频谱是连续的。
值得注意的是，NR下行配置的预编码粒度{2，4，宽带}主要适用于PDSCH，PSSCH的帧结构与PDSCH不同，在对PSSCH上映射的数据进行预编码时沿用NR下行配置的预编码粒度，可能造成不同子信道的数据划分在同一个PRG，使用相同的预编码矩阵进行预编码。由于不同子信道的信道状态存在差异，如果不同子信道的数据使用同样的预编码矩阵进行预编码，可能降低传输可靠性。
本申请实施例提供一种数据发送方法，第一终端装置可以根据第一预编码粒度或第二预编码粒度对数据信道上的数据进行预编码，获得待发送的数据。其中，第一预编码粒度为子信道，第二预编码粒度小于所述子信道；之后，第一终端装置向第二终端装置发送获得的待发送的数据。可见，本申请实施例提供的方法可以根据侧行链路的帧结构配置了不同与NR下行配置的预编码粒度，例如，第一预编码粒度和第二预编码粒度。进而可以根据第一预编码粒度和第二预编码粒度划分预编码资源块组，可以提升侧行链路上的传输可靠性。例如，根据子信道为粒度划分PRG后，一个子信道作为一个PRG进行预编码，即利用相同的预编码矩阵对同一个子信道上映射的数据进行预编码，尽可能避免跨子信道预编码，也即避免相邻子信道上的数据使用同样的预 编码矩阵进行预编码，提升传输可靠性。另外，在窄带预编码方案中，可以根据子信道的带宽配置小于子信道的预编码粒度，采用小于子信道的粒度划分PRG进行预编码，不仅仅局限于NR下行配置的预编码粒度，适用于侧行链路的帧结构，配置的灵活性更高。
本申请实施例所述的终端装置，例如，第一终端装置或第二终端装置，可以通过图6中的通信装置60来实现。图6所示为本申请实施例提供的通信装置60的硬件结构示意图。该通信装置60包括处理器601、存储器602以及至少一个通信接口(图6中仅是示例性的以包括通信接口603为例进行说明)。其中，处理器601、存储器602以及通信接口603之间互相连接。
处理器601可以是一个通用中央处理器(central processing unit，CPU)，微处理器，特定应用集成电路(application-specific integrated circuit，ASIC)，或一个或多个用于控制本申请方案程序执行的集成电路。
通信接口603，使用任何收发器一类的装置，用于与其他设备或通信网络通信，如以太网，无线接入网(radio access network，RAN)，无线局域网(wireless local area networks，WLAN)等。
存储器602可以是只读存储器(read-only memory，ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(random access memory，RAM)或者可存储信息和指令的其他类型的动态存储设备，也可以是电可擦可编程只读存储器(electrically erasable programmable read-only memory，EEPROM)、只读光盘(compact disc read-only memory，CD-ROM)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质，但不限于此。存储器可以是独立存在，通过通信线路602与处理器相连接。存储器也可以和处理器集成在一起。
其中，存储器602用于存储执行本申请方案的计算机执行指令，并由处理器601来控制执行。处理器601用于执行存储器602中存储的计算机执行指令，从而实现本申请下述实施例提供的意图处理方法。
可选的，本申请实施例中的计算机执行指令也可以称之为应用程序代码，本申请实施例对此不作具体限定。
在具体实现中，作为一种实施例，处理器601可以包括一个或多个CPU，例如图6中的CPU0和CPU1。
在具体实现中，作为一种实施例，通信装置60可以包括多个处理器，例如图6中的处理器601和处理器606。这些处理器中的每一个可以是一个单核(single-CPU)处理器，也可以是一个多核(multi-CPU)处理器。这里的处理器可以指一个或多个设备、电路、和/或用于处理数据(例如计算机程序指令)的处理核。
在具体实现中，作为一种实施例，通信装置60还可以包括输出设备604和输入设备605。输出设备604和处理器601通信，可以以多种方式来显示信息。例如，输出设备604可以是液晶显示器(liquid crystal display，LCD)，发光二级管(light emitting diode，LED)显示设备，阴极射线管(cathode ray tube，CRT)显示设备，或投影仪 (projector)等。输入设备605和处理器601通信，可以以多种方式接收用户的输入。例如，输入设备605可以是鼠标、键盘、触摸屏设备或传感设备等。
上述的通信装置60可以是一个通用设备或者是一个专用设备。在具体实现中，通信装置60可以是台式机、便携式电脑、网络服务器、掌上电脑(personal digital assistant，PDA)、移动手机、平板电脑、无线终端装置、嵌入式设备或有图6中类似结构的设备。本申请实施例不限定通信装置60的类型。
需要说明的是，通信装置60可以是终端装置整机，也可以是实现终端装置上的功能部件或组件，也可以是通信芯片，例如基带芯片等。通信装置60是终端装置整机时，通信接口可以是射频模块。当通信装置60为通信芯片，通信接口603可以是该芯片的输入输出接口电路，输入输出接口电路用于读入和输出基带信号。
本申请实施例提供一种数据发送方法，参考图7，所述方法包括以下步骤：
701、第一终端装置根据第一预编码粒度或第二预编码粒度对数据信道上的数据进行预编码，获得待发送的数据，其中，所述第一预编码粒度为子信道，所述第二预编码粒度小于所述子信道。
需要说明的是，数据信道可以是本申请实施例所述的PSSCH，数据信道上的数据可以是数据信道上映射的数据。具体地，第一终端装置对数据进行信道编码、调制获得复数数据，并将复数数据映射在数据信道上。还可以根据第一预编码粒度或第二预编码粒度划分预编码资源块组(例如，本申请实施例所述的PRG)，利用预编码矩阵分别对划分的预编码资源块组进行预编码。此外，本申请实施例的子信道也可以替换成sidelink资源池的其他调度单元，例如，RB、RE等。
根据不同的预编码粒度，具体的预编码过程有所不同，具体包括如下两种可能：
第一种、根据第一预编码矩阵进行预编码，即以子信道为预编码粒度划分预编码资源块组，利用预编码矩阵对划分的资源块组进行预编码。具体可以有如下两种预编码示例：
示例1a：数据信道占用多个子信道，控制信道映射在数据信道占用的其中一个子信道上，控制信道的频域起始位置与数据信道的频域起始位置可以对齐，也可以不对齐。发送端以子信道为粒度在数据信道第一部分和数据信道第二部分分别划分预编码资源块组，频域宽度等于子信道的预编码资源块组独立进行预编码，频域宽度小于子信道的部分以连续资源块为预编码粒度划分预编码资源块组。
其中，所述数据信道第一部分为所述数据信道中，与控制信道频域不重叠且存在时域重叠的部分，例如，数据信道第一部分为本申请实施例所述的partA；所述数据信道第二部分为所述数据信道中，与控制信道时域不重叠且存在频域重叠的部分数据信道第二部分可以是本申请实施例所述的partB。本申请实施例中，控制信道的频域起始位置可以是控制信道占用的第一个频域资源单元，例如，参考图8，控制信道的频域起始位置可以是控制信道的频域起始资源块，例如，数据信道占用的第一个RB。本申请实施例中，数据信道占用的第一个RB，可以是数据信道占用的RB中，index最低的RB。
例如，所述数据信道占用N个子信道，N为大于1的整数，所述第一终端装置可以根据第一预编码粒度，将数据信道第一部分划分为N-1个预编码资源块组和第一资 源区域。其中，所述N-1个预编码资源块组中的每一个预编码资源块组包含一个子信道，所述第一资源区域为第一子信道与所述控制信道频域不重叠的部分，所述第一子信道为所述N个子信道中所述控制信道占用的子信道。
此外，对N-1个预编码资源块组分别进行预编码时，不同的预编码资源块组可以使用相同的预编码矩阵，也可以使用不同的预编码矩阵，本申请实施例对此不作限制。例如，利用P个预编码矩阵对所述N-1个预编码资源块组上的数据进行预编码，所述P为大于或等于1且小于或等于N-1的正整数。
第一终端装置还可以将所述第一资源区域划分为Y个预编码资源块组，所述Y个预编码资源块组中的任意一个预编码资源块组中包含的资源块是连续的，利用X个预编码矩阵对所述Y个预编码资源块组上的数据进行预编码；所述Y为大于等于1的整数。具体地，控制信道的频域起始位置与数据信道的频域起始位置对齐，第一资源区域是连续的，作为一个预编码资源块组，即Y等于1。若控制信道的频域起始位置与数据信道的频域起始位置不对齐，第一资源区域被控制信道隔成不连续的两部分，这两部分分别作为一个预编码资源块组，即Y等于2。此外，Y个预编码资源块组使用的预编码矩阵可以相同或不同，即所述X为大于等于1且小于或等于Y的整数。具体地，Y等于1或2。
第一终端装置还可以根据第一预编码粒度，将数据信道第二部分划分为N个预编码资源块组，利用Z个预编码矩阵对所述N个预编码资源块组上的数据进行预编码；所述N个预编码资源块组中的每一个预编码资源块组包含一个子信道，所述Z为大于或等于1且小于或等于N的整数。
以下结合图示详细说明：参考图9，假设控制信道的频域起始位置与数据信道的频域起始位置相同，数据信道占用两个子信道，控制信道映射在其中一个子信道上，根据控制信道可以将数据信道划分为A1、A2，B这三部分，其中，A1、A2构成数据信道第一部分，B为数据信道第二部分。
具体地，B部分的数据信道以子信道为粒度进行预编码。示例的，参考图9，将B部分的数据信道的数据信道划分为G1和G2两个预编码资源块组，可以利用两个不同的预编码矩阵分别对G1和G2进行预编码。
A部分数据信道在一个子信道内按照连续的RB分布进行编码。由于控制信道的频域起始位置与数据信道的频域起始位置对齐，因此数据信道第一部分在一个子信道内是连续的。
A1部分的数据信道以M_sub_channel-M_PSCCH为粒度进行编码，作为一个预编码资源块组G3，其中，M_sub_channel为子信道带宽，M_PSCCH为控制信道带宽。利用一个预编码矩阵对预编码资源块组G3进行预编码。
A2部分的数据信道以子信道为预编码粒度进行预编码，A2部分的数据信道作为一个预编码资源块组G4。利用一个预编码资源块组对预编码资源块组G4进行预编码。
参考图10，假设控制信道的频域起始位置与数据信道的频域起始位置不对齐，数据信道占用两个子信道，控制信道映射在其中一个子信道上，根据控制信道可以将数据信道划分为A1、A2、A3，B这四部分，其中，A1、A2、A3构成数据信道第一部分，B为数据信道第二部分。
具体地，B部分的数据信道以子信道为粒度进行预编码。示例的，参考图10，将B部分的数据信道的数据信道划分为G1和G2两个预编码资源块组，可以利用两个不同的预编码矩阵分别对G1和G2进行预编码。
A部分数据信道在一个子信道内按照连续的RB分布进行编码。由于控制信道的频域起始位置与数据信道的频域起始位置不对齐，因此数据信道第一部分在一个子信道内是不连续的，一个子信道被控制信道隔成了A1、A2两部分，A1、A2包括的资源块是连续的。
A1部分的数据信道以X个RB为粒度进行预编码，作为一个预编码资源块组G3，利用一个预编码矩阵对预编码资源块组G3进行预编码。A2部分的数据信道以Y个RB为粒度进行预编码，作为一个预编码资源块组G4，利用一个预编码矩阵对预编码资源块组G4进行预编码。其中，X个RB的带宽、Y个RB的带宽以及M_PSCCH加起来等于子信道带宽。其中，M_PSCCH为控制信道带宽。
A3部分的数据信道以子信道为预编码粒度进行预编码，A3部分的数据信道作为一个预编码资源块组G5。利用一个预编码资源块组对预编码资源块组G5进行预编码。
示例1b：数据信道占用1个子信道，数据信道占用1个子信道，控制信道映射在数据信道占用的一个子信道上，控制信道的频域起始位置与数据信道的频域起始位置可以对齐，也可以不对齐。发送端可以根据子信道，在数据信道第一部分和数据信道第二部分分别划分预编码资源块组，频域宽度等于子信道的预编码资源块组独立进行预编码，频域宽度小于子信道的部分以连续资源块为预编码粒度划分预编码资源块组。
例如，数据信道第一部分可以划分为S个预编码资源块组，所述S个预编码资源块组中的任意一个预编码资源块组中包含的资源块是连续的，利用T个预编码矩阵对所述S个预编码资源块组上的数据进行预编码；所述S为大于等于1的整数，所述T为大于或等于1且小于或等于S的整数。具体地，S为1或2。当控制信道的频域起始位置与数据信道的频域起始位置对齐，数据信道第一部分可以划分为1个预编码资源块组。当控制信道的频域起始位置与数据信道的频域起始位置不对齐，数据信道第一部分可以划分为2个预编码资源块组。
此外，数据信道第二部分为一个预编码资源块组，利用一个预编码矩阵对所述一个预编码资源块组上的数据进行预编码。
以下结合图示详细说明：参考图11，假设控制信道的频域起始位置与数据信道的频域起始位置相同，数据信道占用一个子信道，控制信道映射在该子信道上，根据控制信道可以将数据信道划分为A，B这两部分，其中，A为数据信道第一部分，B为数据信道第二部分。
具体地，B部分的数据信道以子信道为粒度进行预编码。示例的，参考图11，将B部分的数据信道的数据信道划分为预编码资源块组G1，可以利用一个预编码矩阵对G1进行预编码。
A部分数据信道在一个子信道内按照连续的RB分布进行编码。由于控制信道的频域起始位置与数据信道的频域起始位置对齐，因此数据信道第一部分在一个子信道内是连续的。
A部分的数据信道以M_sub_channel-M_PSCCH为粒度进行编码，作为一个预编 码资源块组G2，利用一个预编码矩阵对预编码资源块组G2进行预编码。
参考图12，假设控制信道的频域起始位置与数据信道的频域起始位置不对齐，数据信道占用一个子信道，控制信道映射在该子信道上，根据控制信道可以将数据信道划分为A1、A2，B这三部分，其中，A1、A2构成数据信道第一部分，B为数据信道第二部分。
具体地，B部分的数据信道以子信道为粒度进行预编码。示例的，参考图10，将B部分的数据信道的数据信道划分为两个预编码资源块组G1，可以利用一个预编码矩阵对G1进行预编码。
A部分数据信道在一个子信道内按照连续的RB分布进行编码。由于控制信道的频域起始位置与数据信道的频域起始位置不对齐，因此数据信道第一部分在一个子信道内是不连续的，一个子信道被控制信道隔成了A1、A2两部分，A1、A2包括的资源块是连续的。
A1部分的数据信道以X个RB为粒度进行预编码，作为一个预编码资源块组G2，利用一个预编码矩阵对预编码资源块组G2进行预编码。A2部分的数据信道以Y个RB为粒度进行预编码，作为一个预编码资源块组G3，利用一个预编码矩阵对预编码资源块组G3进行预编码。其中，X个RB的带宽、Y个RB的带宽以及M_PSCCH加起来等于子信道带宽。其中，M_PSCCH为控制信道带宽。
第二种、根据第二预编码矩阵进行预编码，即以小于子信道为预编码粒度划分预编码资源块组，利用预编码矩阵对划分的资源块组进行预编码。具体可以有如下四种预编码示例：
示例2a：数据信道占用一个或多个子信道，控制信道映射在数据信道占用的其中一个子信道上，控制信道的频域起始位置与数据信道的频域起始位置可以对齐，也可以不对齐。发送端可以从数据信道的频域起始位置开始，以多个RB(小于子信道带宽)为粒度，在整个数据信道上划分预编码资源块组。
例如，所述数据信道占用M个子信道，所述M为大于等于1的整数，每个所述子信道包括K个资源块，所述第二预编码粒度为Q个资源块，所述Q为小于所述K的整数。
第一终端装置可以从所述数据信道的频域起始资源块开始，根据所述第二预编码粒度所述数据信道依次划分为
Figure PCTCN2020109015-appb-000141
个预编码资源块组，利用R个预编码矩阵对所述
Figure PCTCN2020109015-appb-000142
个预编码资源块组上的数据进行预编码；所述R为大于或等于1且小于或等于所述
Figure PCTCN2020109015-appb-000143
的整数。
需要说明的是，所述
Figure PCTCN2020109015-appb-000144
个预编码资源块组中最后一个预编码资源块组包括的资源块的数量为
Figure PCTCN2020109015-appb-000145
当K·M不能被Q，最后一个预编码资源块组中的连续资源块的数量小于Q，当K·M可以被Q，在数据信道上划分的所有预编码资源块组中的连续资源块的数量是Q。其中，最后一个预编码资源块组是从数据信道的频域起始资源块开始依次划分编码组，获得的最后一个预编码资源块组。
示例的，参考图13，假设控制信道的频域起始位置与数据信道的频域起始位置对 齐，数据信道占用3个子信道，控制信道映射在数据信道占用的其中一个子信道上。每个子信道包括5个连续的RB。第二预编码粒度为小于子信道，例如，第二预编码粒度为4个RB。参考图13，从数据信道占用的第一个RB开始，以4个RB为预编码粒度将数据信道依次划分为预编码资源块组G1、G2、G3、G4。其中，预编码资源块组G1、G2、G3均包括4个连续的RB，预编码资源块组G4包括3个RB。
第一终端装置可以利用4个预编码矩阵对预编码资源块组G1、G2、G3、G4分别进行预编码。
或者，参考图14，假设控制信道的频域起始位置与数据信道的频域起始位置不对齐，数据信道占用3个子信道，控制信道映射在数据信道占用的其中一个子信道上。每个子信道包括5个连续的RB。第二预编码粒度为小于子信道，例如，第二预编码粒度为4个RB。参考图13，从数据信道占用的第一个RB开始，以4个RB为预编码粒度将数据信道依次划分为预编码资源块组G1、G2、G3、G4。其中，预编码资源块组G1、G2、G3均包括4个连续的RB，预编码资源块组G4包括3个RB。
第一终端装置可以利用4个预编码矩阵对预编码资源块组G1、G2、G3、G4分别进行预编码。
示例2b：数据信道占用一个或多个子信道，控制信道映射在数据信道占用的其中一个子信道上，控制信道的频域起始位置与数据信道的频域起始位置可以对齐，也可以不对齐。发送端可以对数据信道占用的每一个子信道独立进行预编码资源块组的划分。即针对数据信道占用的每一个子信道，从该子信道的频域起始资源块开始，以多个RB(小于子信道带宽)为粒度，在各个子信道上划分预编码资源块组。
例如，所述数据信道占用M个子信道，所述M为大于1的整数，每个所述子信道包括K个资源块，所述第二预编码粒度为Q个资源块，所述Q为小于K的整数。
针对所述N个子信道中的每一个子信道，从所述每一个子信道的频域起始资源块开始，根据所述第二预编码粒度所述子信道依次划分成
Figure PCTCN2020109015-appb-000146
个预编码资源块组，利用L个预编码矩阵对所述
Figure PCTCN2020109015-appb-000147
个预编码资源块组上的数据进行预编码；所述L为大于或等于1且小于或等于所述
Figure PCTCN2020109015-appb-000148
的整数。
需要说明的是，所述
Figure PCTCN2020109015-appb-000149
个预编码资源块组中最后一个预编码资源块组包括的资源块的数量等于
Figure PCTCN2020109015-appb-000150
当K不能被Q，最后一个预编码资源块组中的连续资源块的数量小于Q，当K可以被Q，在数据信道上划分的所有预编码资源块组中的连续资源块的数量是Q。其中，每个子信道中的最后一个预编码资源块组是从该子信道的频域起始资源块开始依次划分编码组，获得的最后一个预编码资源块组。
示例的，参考图15，假设控制信道的频域起始位置与数据信道的频域起始位置对齐，数据信道占用子信道1、子信道2以及子信道3这3个子信道，控制信道映射在数据信道占用的其中一个子信道上。每个子信道包括5个连续的RB。第二预编码粒度为小于子信道，例如，第二预编码粒度为2个RB。参考图15，针对子信道1，从子信道1的第一RB开始，以2个RB为预编码粒度将数据信道依次划分为预编码资源块组G1、G2、G3，其中，预编码资源块组G1、G2均包括2个连续的RB，预编码资源 块组G3包括1个RB。
针对子信道2，从子信道2的第一RB开始，以2个RB为预编码粒度将数据信道依次划分为预编码资源块组G4、G5、G6，其中，预编码资源块组G4、G5均包括2个连续的RB，预编码资源块组G6包括1个RB。
针对子信道3，从子信道3的第一RB开始，以2个RB为预编码粒度将数据信道依次划分为预编码资源块组G7、G8、G9，其中，预编码资源块组G7、G8均包括2个连续的RB，预编码资源块组G9包括1个RB。
第一终端装置可以利用不同的预编码矩阵对预编码资源块组G1、G2、G3、G4、G5、G6、G7、G8、G9分别进行预编码。
或者，参考图16，假设控制信道的频域起始位置与数据信道的频域起始位置不对齐。数据信道占用子信道1、子信道2以及子信道3这3个子信道，控制信道映射在数据信道占用的其中一个子信道上。每个子信道包括5个连续的RB。第二预编码粒度为小于子信道，例如，第二预编码粒度为2个RB。参考图15，针对子信道1，从子信道1的第一RB开始，以2个RB为预编码粒度将数据信道依次划分为预编码资源块组G1、G2、G3，其中，预编码资源块组G1、G2均包括2个连续的RB，预编码资源块组G3包括1个RB。
针对子信道2，从子信道2的第一RB开始，以2个RB为预编码粒度将数据信道依次划分为预编码资源块组G4、G5、G6，其中，预编码资源块组G4、G5均包括2个连续的RB，预编码资源块组G6包括1个RB。
针对子信道3，从子信道3的第一RB开始，以2个RB为预编码粒度将数据信道依次划分为预编码资源块组G7、G8、G9，其中，预编码资源块组G7、G8均包括2个连续的RB，预编码资源块组G9包括1个RB。
第一终端装置可以利用不同的预编码矩阵对预编码资源块组G1、G2、G3、G4、G5、G6、G7、G8、G9分别进行预编码。
示例2c：数据信道占用一个或多个子信道，控制信道映射在数据信道占用的其中一个子信道上，控制信道的频域起始位置与数据信道的频域起始位置可以对齐，也可以不对齐。发送端可以从数据信道第一部分的频域起始位置开始，以多个RB(小于子信道带宽)为粒度，在整个数据信道第一部分上划分预编码资源块组。同时，从数据信道第二部分的频域起始位置开始，以多个RB(小于子信道带宽)为粒度，在整个数据信道第二部分上划分预编码资源块组。数据信道第一部分、数据信道第二部分使用相同的预编码粒度划分预编码块资源组。
例如，所述数据信道占用M个子信道，所述M为大于等于1的整数，所述子信道包括K个资源块，所述第二预编码粒度为Q个资源块，所述Q为小于K的整数。
从数据信道第一部分的频域起始资源块开始，根据所述第二预编码粒度所述数据信道第一部分依次划分成
Figure PCTCN2020109015-appb-000151
个预编码资源块组；利用D个预编码矩阵对所述
Figure PCTCN2020109015-appb-000152
个预编码资源块组上的数据进行预编码；所述X为所述控制信道占用的资源块的数量，所述D为大于或等于1且小于或等于所述
Figure PCTCN2020109015-appb-000153
的整数；
从数据信道第二部分的频域起始资源块开始，根据所述第二预编码粒度所述数据 信道第二部分依次划分成
Figure PCTCN2020109015-appb-000154
个预编码资源块组，利用W个预编码矩阵对所述
Figure PCTCN2020109015-appb-000155
个预编码资源块组上的数据进行预编码，所述W为大于或等于1且小于或等于所述
Figure PCTCN2020109015-appb-000156
需要说明的是，所述
Figure PCTCN2020109015-appb-000157
个预编码资源块组中最后一个预编码资源块组包括的资源块的数量为
Figure PCTCN2020109015-appb-000158
当(K·M-X)可以被Q整除，数据信道第一部分划分的每一个预编码资源块组包括的资源块的数量为Q。当(K·M-X)不能被Q整除，数据信道第一部分划分的最后一个预编码资源块组包括的资源块的数量小于Q。
此外，所述
Figure PCTCN2020109015-appb-000159
个预编码资源块组中最后一个预编码资源块组包括的资源块的数量为
Figure PCTCN2020109015-appb-000160
当(K·M)可以被Q整除，数据信道第一部分划分的每一个预编码资源块组包括的资源块的数量为Q。当(K·M)不能被Q整除，数据信道第一部分划分的最后一个预编码资源块组包括的资源块的数量小于Q。
示例的，参考图17，假设控制信道的频域起始位置与数据信道的频域起始位置对齐，数据信道占用子信道1、子信道2以及子信道3这3个子信道，控制信道映射在数据信道占用的其中一个子信道上，且控制信道占用3个RB。每个子信道包括5个连续的RB。第二预编码粒度为小于子信道，例如，第二预编码粒度为4个RB。参考图16，数据信道占用3个子信道，控制信道占用3个RB，因此数据信道第一部分占用12个(3·5-3)连续的RB。从数据信道第一部分占用的第一个RB开始，以4个RB为预编码粒度，将数据信道第一部分占用的12个RB依次划分为预编码资源块组G1、G2、G3。其中，预编码资源块组G1、G2、G3包括的资源块数量均为4。
[根据细则91更正 04.09.2020]　
数据信道第二部分占用15个RB，以4个RB为预编码粒度，将数据信道第二部分占用的15个RB依次划分为预编码资源块组G4、G5、G6、G7。其中，预编码资源块组G4、G5、G6包括的资源块数量均为4，预编码资源块组G7包括的资源块数量为3。
示例的，参考图18，假设控制信道的频域起始位置与数据信道的频域起始位置不对齐，数据信道占用子信道1、子信道2以及子信道3这3个子信道，控制信道映射在数据信道占用的其中一个子信道上，且控制信道占用3个RB。每个子信道包括5个连续的RB。第二预编码粒度为小于子信道，例如，第二预编码粒度为4个RB。参考图18，数据信道占用3个子信道，控制信道占用3个RB，数据信道第一部分被控制信道隔成两个不连续的部分，数据信道第一部分占用的12个(3·5-3)RB不连续。可以从数据信道第一部分占用的第一个RB开始，以4个RB为预编码粒度，将数据信道第一部分占用的12个RB依次划分为预编码资源块组G1、G2、G3。其中，预编码资源块组G1、G2、G3包括的资源块数量均为4。需要说明的是，由于控制信道的频域起始位置与数据信道的频域起始位置不对齐，预编码资源块组G1包括的资源块不连续。
[根据细则91更正 04.09.2020]　
此外，数据信道第二部分占用15个RB，以4个RB为预编码粒度，将数据信道第一部分占用的12个RB依次划分为预编码资源块组G4、G5、G6、G7。其中，预编码资源块组G4、G5、G6包括的资源块数量均为4，预编码资源块组G7包括的资源块 数量为3。
示例2d：数据信道占用一个或多个子信道，控制信道映射在数据信道占用的其中一个子信道上，控制信道的频域起始位置与数据信道的频域起始位置可以对齐，也可以不对齐。发送端可以将数据信道第一部分占用的第一子信道上划分为1个或2个预编码资源块，可以根据第二预编码粒度分别在数据信道第一部分占用的每一个第二子信道上划分预编码资源块组，各个第二子信道是独立进行划分的。同样，可以根据第二预编码粒度分别在数据信道第二部分占用的每一个子信道上划分预编码资源块组，数据信道第二部分占用的各个子信道是独立进行划分的。其中，第一子信道为控制信道映射的子信道，第二子信道是数据信道第一部分占用的多个子信道中除第一子信道外的其他子信道。
例如，所述数据信道占用M个子信道，所述M为大于1的整数，每个所述子信道包括K个资源块，所述第二预编码粒度为Q个资源块，所述Q为小于K的整数。
从数据信道第一部分占用的第一子信道的频域起始资源块开始，根据所述第二预编码粒度数据信道第一部分占用的第一子信道依次划分为
Figure PCTCN2020109015-appb-000161
个预编码资源块组，利用G个预编码矩阵对所述
Figure PCTCN2020109015-appb-000162
个预编码资源块组上的数据进行预编码；所述第一子信道为所述N个子信道中控制信道占用的子信道；所述G为大于或等于1且小于或等于
Figure PCTCN2020109015-appb-000163
的整数；
根据所述第二预编码粒度将所述数据信道第一部分占用的每一个第二子信道依次划分为
Figure PCTCN2020109015-appb-000164
个第一预编码资源块组，利用F个预编码矩阵对所述
Figure PCTCN2020109015-appb-000165
个第一预编码资源块组上的数据进行预编码；所述第二子信道是所述数据信道第一部分占用的子信道中除所述第一子信道外的其他子信道；所述F为大于或等于1且小于或等于
Figure PCTCN2020109015-appb-000166
的整数；
根据所述第二预编码粒度将数据信道第二部分占用的每一个子信道依次划分为
Figure PCTCN2020109015-appb-000167
个第二预编码资源块组，利用H个预编码矩阵对所述
Figure PCTCN2020109015-appb-000168
个第二预编码资源块组上的数据进行预编码；所述H为大于或等于1且小于或等于
Figure PCTCN2020109015-appb-000169
的整数；
需要说明的是，所述
Figure PCTCN2020109015-appb-000170
个预编码资源块组中最后一个预编码资源块组包括的资源块的数量等于
Figure PCTCN2020109015-appb-000171
当(K-X)不能被Q整除，所述
Figure PCTCN2020109015-appb-000172
个预编码资源块组中最后一个预编码资源块组包括的资源块的数量小于Q，当(K-X)能被Q整除，所述
Figure PCTCN2020109015-appb-000173
个预编码资源块组均包括Q个资源块。
所述
Figure PCTCN2020109015-appb-000174
个第一预编码资源块组中最后一个预编码资源块组包括的资源块的数量等于
Figure PCTCN2020109015-appb-000175
当K不能被Q整除，所述
Figure PCTCN2020109015-appb-000176
个第一预编码资源块组中最后一个第一预编码资源块组包括的资源块的数量小于Q，当K能被Q整除，所述
Figure PCTCN2020109015-appb-000177
个预编码资源块组均包括Q个资源块。
所述
Figure PCTCN2020109015-appb-000178
个第二预编码资源块组中最后一个预编码资源块组包括的资源块的数量为
Figure PCTCN2020109015-appb-000179
当K不能被Q整除，所述
Figure PCTCN2020109015-appb-000180
个第二预编码资源块组中最后一个第二预编码资源块组包括的资源块的数量小于Q，当K能被Q整除，所 述
Figure PCTCN2020109015-appb-000181
个预编码资源块组均包括Q个资源块。
示例的，参考图19，假设控制信道的频域起始位置与数据信道的频域起始位置对齐。数据信道占用子信道1、子信道2以及子信道3这三个子信道。此外，控制信道映射子信道1上，且控制信道占用3个RB。每个子信道包括5个连续的RB。第二预编码粒度为小于子信道，例如，第二预编码粒度为3个RB。
数据信道第一部分占用的子信道1(即本申请实施例所述的第一子信道)划分为预编码资源块组G1，由于控制信道占用3个RB，预编码资源块组G1包括2个连续的资源块。
针对数据信道第一部分占用的子信道2(即本申请实施例所述的第二子信道)，从子信道1的第一RB开始，以3个RB为预编码粒度将数据信道依次划分为预编码资源块组G2、G3，其中，预编码资源块组G2包括3个连续的RB，预编码资源块组G3包括2个RB。
针对数据信道第一部分占用的子信道3(即本申请实施例所述的第二子信道)，从数据信道第一部分占用的子信道3的第一RB开始，以3个RB为预编码粒度将数据信道依次划分为预编码资源块组G4、G5，其中，预编码资源块组G4均包括3个连续的RB，预编码资源块组G5包括2个RB。
针对数据信道第二部分占用的子信道1，从数据信道第二部分占用的子信道1的第一RB开始，以3个RB为预编码粒度将数据信道依次划分为预编码资源块组G6、G7，其中，预编码资源块组G6均包括3个连续的RB，预编码资源块组G7包括2个RB。
针对数据信道第二部分占用的子信道2，从数据信道第二部分占用的子信道2的第一RB开始，以3个RB为预编码粒度将数据信道依次划分为预编码资源块组G8、G9，其中，预编码资源块组G8包括3个连续的RB，预编码资源块组G9包括2个RB。
针对数据信道第二部分占用的子信道3，从数据信道第二部分占用的子信道3的第一RB开始，以3个RB为预编码粒度将数据信道依次划分为预编码资源块组G10、G11，其中，预编码资源块组G10包括3个连续的RB，预编码资源块组G11包括2个RB。
第一终端装置可以利用不同的预编码矩阵对预编码资源块组G1～G11分别进行预编码。
或者，参考图20，假设控制信道的频域起始位置与数据信道的频域起始位置不对齐。数据信道占用子信道1、子信道2以及子信道3这三个子信道。此外，控制信道映射子信道1上，且控制信道占用3个RB。每个子信道包括5个连续的RB。第二预编码粒度为小于子信道，例如，第二预编码粒度为2个RB。
数据信道第一部分占用的子信道1(即本申请实施例所述的第一子信道)划分为预编码资源块组G1和G2，由于控制信道占用3个RB，预编码资源块组G1、G2各包括1个资源块。
针对数据信道第一部分占用的子信道2(即本申请实施例所述的第二子信道)，从子信道1的第一RB开始，以3个RB为预编码粒度将数据信道依次划分为预编码资源块组G3、G4，其中，预编码资源块组G3包括3个连续的RB，预编码资源块组 G4包括2个RB。
针对数据信道第一部分占用的子信道3(即本申请实施例所述的第二子信道)，从数据信道第一部分占用的子信道3的第一RB开始，以3个RB为预编码粒度将数据信道依次划分为预编码资源块组G5、G6，其中，预编码资源块组G5均包括3个连续的RB，预编码资源块组G6包括2个RB。
针对数据信道第二部分占用的子信道1，从数据信道第二部分占用的子信道1的第一RB开始，以3个RB为预编码粒度将数据信道依次划分为预编码资源块组G7、G8，其中，预编码资源块组G7均包括3个连续的RB，预编码资源块组G8包括2个RB。
针对数据信道第二部分占用的子信道2，从数据信道第二部分占用的子信道2的第一RB开始，以3个RB为预编码粒度将数据信道依次划分为预编码资源块组G9、G10，其中，预编码资源块组G9均包括3个连续的RB，预编码资源块组G10包括2个RB。
针对数据信道第二部分占用的子信道3，从数据信道第二部分占用的子信道3的第一RB开始，以3个RB为预编码粒度将数据信道依次划分为预编码资源块组G11、G12，其中，预编码资源块组G11包括3个连续的RB，预编码资源块组G12包括2个RB。
第一终端装置可以利用不同的预编码矩阵对预编码资源块组G1～G12分别进行预编码。
第一终端装置可以利用不同的预编码矩阵对预编码资源块组G1～G17分别进行预编码。
702、所述第一终端装置向第二终端装置发送所述待发送的数据。
具体实现中，终端装置将编码后的预编码资源块组上的数据映射到对应的空间资源网格，通过空间信道向第二终端装置发送预编码资源块组上的数据。
可选的，sidelink资源池中，控制信道还可以占用多个子信道。例如，参考图21，控制信道的频域起始位置与数据信道的频域起始位置对齐，数据信道占用三个子信道，控制信道映射在其中两个子信道。
具体地，第一终端装置可以根据第一预编码粒度或第二预编码粒度划分预编码资源块组。其中，第一预编码粒度为子信道带宽，第二预编码粒度小于子信道。
一种可能的实现方式中，以子信道为粒度在数据信道第一部分和数据信道第二部分分别划分预编码资源块组，频域宽度等于子信道的预编码资源块组独立进行预编码，频域宽度小于子信道的部分以连续资源块为预编码粒度划分预编码资源块组。
例如，参考图22，数据信道的A1部分作为一个预编码资源块组进行预编码，包括3个RB。数据信道的A2部分占用一个子信道，作为一个预编码资源块组进行预编码。数据信道的B1部分占用一个子信道，作为一个预编码资源块组进行预编码。数据信道的B2占用一个子信道，作为一个预编码资源块组进行预编码。数据信道的B3部分，占用一个子信道，作为一个预编码资源块组进行预编码。
另一种可能的实现方式中，将整个数据信道作为一个整体来划分预编码资源块组，从数据信道的频域起始位置开始，以多个RB(小于子信道带宽)为粒度，在整个数据 信道上划分预编码资源块组。
例如，参考图23，每个子信道包括5个RB，以3个RB作为预编码粒度。从数据信道占用的第一个RB开始，数据信道依次划分为预编码资源块组G1、G2、G3、G4、G5。第一终端装置还可以利用不同的预编码矩阵对G1、G2、G3、G4、G5进行预编码。
另一种可能的实现方式中，针对数据信道占用的每一个子信道独立进行预编码资源块组的划分。即针对数据信道占用的每一个子信道，从该子信道的频域起始资源块开始，以多个RB(小于子信道带宽)为粒度，在各个子信道上划分预编码资源块组。
例如，参考图24，数据信道占用3个子信道：子信道1、子信道2以及子信道3。控制信道映射在子信道1和子信道2。每个子信道包括5个RB，以3个RB作为预编码粒度。针对数据信道占用的每一个子信道，从子信道占用的第一RB开始，将子信道1划分为2个预编码资源块组：G1、G2；将子信道2划分为2个预编码资源块组：G3、G4；将子信道3划分为2个预编码资源块组：G5、G6。
另一种可能的实现方式中，从数据信道第一部分的频域起始位置开始，以多个RB(小于子信道带宽)为粒度，将数据信道第一部分作为一个整体来划分预编码资源块组。同时，从数据信道第二部分的频域起始位置开始，以多个RB(小于子信道带宽)为粒度，将数据信道第二部分作为一个整体划分预编码资源块组。数据信道第一部分、数据信道第二部分使用相同的预编码粒度划分预编码块资源组。
例如，参考图25，数据信道占用3个子信道：子信道1、子信道2以及子信道3。控制信道映射在子信道1和子信道2，占用7个RB。每个子信道包括5个RB，以3个RB作为预编码粒度。数据信道第一部分占用8个RB，包括子信道2上的3个RB和子信道3上的5个RB。数据信道第二部分占用15个RB。
以3个RB为预编码粒度，数据信道第一部分依次划分为预编码资源块组G1、预编码资源块组G2、预编码资源块组G3。其中，预编码资源块组G1、预编码资源块组G2均包括3个RB，预编码资源块组G3包括2个RB。数据信道第二部分依次划分为预编码资源块组G4～预编码资源块组G8。
另一种可能的实现方式中，可以将数据信道第一部分占用的第一子信道上划分为1个或2个预编码资源块。当控制信道的频域起始位置与数据信道的频域起始位置对齐，第一子信道上划分一个预编码资源块，当控制信道的频域起始位置与数据信道的频域起始位置对齐，第一子信道上划分两个预编码资源块。
还可以根据第二预编码粒度分别在数据信道第一部分占用的每一个第二子信道上划分预编码资源块组，各个第二子信道是独立进行划分的。同样，可以根据第二预编码粒度分别在数据信道第二部分占用的每一个子信道上划分预编码资源块组，数据信道第二部分占用的各个子信道是独立进行划分的。其中，第一子信道为控制信道映射的子信道，第二子信道是数据信道第一部分占用的多个子信道中除第一子信道外的其他子信道。
例如，参考图26，数据信道占用3个子信道：子信道1、子信道2以及子信道3。控制信道映射在子信道1和子信道2，占用7个RB。每个子信道包括5个RB，以3个RB作为预编码粒度。数据信道第一部分占用8个RB，包括子信道2上的3个RB 和子信道3上的5个RB。数据信道第二部分占用15个RB。
第一子信道(例如，数据信道第一部分占用的子信道1、子信道2)上划分了预编码资源块组G1，包括3个RB。
以3个RB为预编码粒度，数据信道第一部分占用的子信道3(即本申请实施例所述的第二子信道)依次划分为预编码资源块组G2、预编码资源块组G3。其中，预编码资源块组G2包括3个RB，预编码资源块组G3包括2个RB。
以3个RB为预编码粒度，数据信道第二部分占用的子信道1依次划分为预编码资源块组G4、预编码资源块组G5。其中，预编码资源块组G4包括3个RB，预编码资源块组G5包括2个RB；数据信道第二部分占用的子信道2依次划分为预编码资源块组G6、预编码资源块组G7。其中，预编码资源块组G6包括3个RB，预编码资源块组G7包括2个RB。数据信道第二部分占用的子信道3依次划分为预编码资源块组G8、预编码资源块组G9。其中，预编码资源块组G8包括3个RB，预编码资源块组G9包括2个RB。
具体实现中，可以通过以下四种方式配置预编码粒度：
第一种，终端装置(例如，本申请实施例所述的第一终端装置)按照第一预编码粒度还是第二预编码粒度进行排序可以是资源池预配的，资源池和预编码粒度配置有绑定关系，所有工作在同一资源池的终端都按照该资源池配置的预编码粒度进行预编码。
例如，第一终端装置和第二终端装置之间的数据信道在第一资源池中，第一终端装置根据第一资源池预配置的预编码粒度进行预编码，第二终端装置根据第一资源池预配置的预编码粒度对来自第一终端装置的数据进行预编码。
另外，第一资源池中的所有数据信道使用相同的预编码粒度，例如，统一使用第一预编码粒度，或统一使用第二预编码粒度。
第二种，网络侧通过无线资源控制(radio resource control，RRC)信令配置第一预编码粒度或第二预编码粒度。
具体地，网络侧通过RRC信令广播资源池信息和资源池配置的预编码粒度，终端装置(例如，第一终端装置或第二终端装置)可以监听网络侧广播的信令，获得资源池信息和资源池配置的预编码粒度，例如，第一预编码粒度或第二预编码粒度。
第三种，第一终端装置通过信令向第二终端终端装置配置预编码粒度。例如，第一终端装置(发送方)还可以向第二终端装置(接收方)指示所采用的预编码粒度。
示例的，通过sidelink上的侧行链路控制信息(sidelink control information，SCI)或者无线资源控制(radio resource control，RRC)来指示第一预编码粒度或第二预编码粒度。
第四种，终端装置所在的通信系统默认按照第一预编码粒度进行编码，或默认按照第二预编码粒度进行编码。
在上述预编码粒度的第二种配置方法中，第一终端终端装置可以根据侧行链路测量结果决定使用第一预编码粒度或第二预编码粒度进行编码。其中，侧行测量结果可以是第二终端装置在sidelink链路上测量所得的信道状态信息(channel state information，CSI)、信道质量指示(channel quality indicator，CQI)等。其中，若CSI 为资源块粒度的反馈，第一终端装置可以根据各个资源块粒度反馈信息的变化大小选择窄带或宽带粒度的预编码粒度；若CSI反馈信息只有一个，即该CSI反馈信息为第二终端装置对该通信链路带宽内的测量反馈，则第一终端装置只能选择宽带粒度的预编码矩阵进行编码。
可选的，图7所示的方法还包括：第二终端装置接收来自第一终端装置的数据，根据第一预编码粒度或第二预编码粒度对所述数据进行解码，获得第一终端装置向第二终端装置发送的数据，其中，第一预编码粒度为子信道，第二预编码粒度小于子信道。
一种可能的实现方式中，第一终端装置与第二终端装置之间的数据信道占用N个子信道，N为大于1的整数，第二终端装置根据第一预编码粒度或第二预编码粒度对所述数据进行解码，包括：根据第一预编码粒度，数据信道第一部分划分为N-1个数据组和第一资源区域；第一资源区域为第一子信道与控制信道频域不重叠的部分，第一子信道为N个子信道中控制信道占用的子信道；利用P个预编码矩阵对N-1个数据组上的数据进行解码，P为大于或等于1且小于或等于N-1的正整数；第一资源区域划分为Y个数据组，Y个数据组中的任意一个数据组中包含的资源块是连续的，利用X个预编码矩阵对Y个数据组上的数据进行解码；Y为大于等于1的整数，X为大于等于1且小于或等于Y的整数；根据第一预编码粒度，数据信道第二部分划分为N个数据组，利用Z个预编码矩阵对N个预数据组上的数据进行解码；N个数据组中的每一个数据组包含一个子信道，Z为大于或等于1且小于或等于N的整数；其中，数据信道第一部分为数据信道中，与控制信道频域不重叠且存在时域重叠的部分；数据信道第二部分为数据信道中，与控制信道时域不重叠且存在频域重叠的部分。
一种可能的实现方式中，第一终端装置与第二终端装置之间的数据信道占用一个子信道，第二终端装置根据第一预编码粒度或第二预编码粒度对所述数据进行解码，包括：数据信道第一部分划分为S个数据组，S个数据组中的任意一个数据组中包含的资源块是连续的，利用T个预编码矩阵对S个数据组上的数据进行解码；S为大于等于1的整数，T为大于或等于1且小于或等于S的整数；数据信道第二部分为一个数据组，利用一个预编码矩阵对一个数据组上的数据进行解码；其中，数据信道第一部分为数据信道中，与控制信道频域不重叠且存在时域重叠的部分；数据信道第二部分为数据信道中，与控制信道时域不重叠且存在频域重叠的部分。
一种可能的实现方式中，第一终端装置与第二终端装置之间的数据信道占用M个子信道，M为大于等于1的整数，每个子信道包括K个资源块，第二预编码粒度为Q个资源块，Q为小于K的整数，第二终端装置根据第一预编码粒度或第二预编码粒度对所述数据进行解码，包括：
从数据信道的频域起始资源块开始，根据第二预编码粒度，数据信道依次划分为
Figure PCTCN2020109015-appb-000182
个数据组，利用R个预编码矩阵对
Figure PCTCN2020109015-appb-000183
个数据组上的数据进行解码；R为大于或等于1且小于或等于
Figure PCTCN2020109015-appb-000184
的整数。
一种可能的实现方式中，
Figure PCTCN2020109015-appb-000185
个数据组中最后一个数据组包括的资源块的数量为
Figure PCTCN2020109015-appb-000186
一种可能的实现方式中，第一终端装置与第二终端装置之间的数据信道占用M个 子信道，M为大于1的整数，每个子信道包括K个资源块，第二预编码粒度为Q个资源块，Q为小于K的整数；第一终端装置根据第二预编码粒度对所述数据进行解码，包括：
针对N个子信道中的每一个子信道，从每一个子信道的频域起始资源块开始，根据第二预编码粒度子信道依次划分成
Figure PCTCN2020109015-appb-000187
个数据组，利用L个预编码矩阵对
Figure PCTCN2020109015-appb-000188
个数据组上的数据进行解码；L为大于或等于1且小于或等于
Figure PCTCN2020109015-appb-000189
的整数。
一种可能的实现方式中，在第二方面的第六种可能的实现方式中，
Figure PCTCN2020109015-appb-000190
个数据组中最后一个数据组包括的资源块的数量等于
Figure PCTCN2020109015-appb-000191
一种可能的实现方式中，第一终端装置与第二终端装置之间的数据信道占用M个子信道，M为大于等于1的整数，子信道包括K个资源块，第二预编码粒度为Q个资源块，Q为小于K的整数，第二终端装置根据第一预编码粒度或第二预编码粒度对所述数据进行解码，包括：从数据信道第一部分的频域起始资源块开始，根据第二预编码粒度，数据信道第一部分依次划分成
Figure PCTCN2020109015-appb-000192
个数据组；利用D个预编码矩阵对
Figure PCTCN2020109015-appb-000193
个数据组上的数据进行解码；X为控制信道占用的资源块的数量，D为大于或等于1且小于或等于
Figure PCTCN2020109015-appb-000194
的整数；从数据信道第二部分的频域起始资源块开始，根据第二预编码粒度，数据信道第二部分依次划分成
Figure PCTCN2020109015-appb-000195
个数据组，利用W个预编码矩阵对
Figure PCTCN2020109015-appb-000196
个数据组上的数据进行解码，W为大于或等于1且小于或等于
Figure PCTCN2020109015-appb-000197
其中，数据信道第一部分为数据信道中，与控制信道频域不重叠且存在时域重叠的部分；数据信道第二部分为数据信道中，与控制信道时域不重叠且存在频域重叠的部分。
一种可能的实现方式中，
Figure PCTCN2020109015-appb-000198
个数据组中最后一个数据组包括的资源块的数量为
Figure PCTCN2020109015-appb-000199
Figure PCTCN2020109015-appb-000200
个数据组中最后一个数据组包括的资源块的数量为
Figure PCTCN2020109015-appb-000201
一种可能的实现方式中，数据信道占用M个子信道，M为大于1的整数，每个子信道包括K个资源块，第二预编码粒度为Q个资源块，Q为小于K的整数，第一终端装置根据第二预编码粒度对所述数据进行解码，包括：
从数据信道第一部分占用的第一子信道的频域起始资源块开始，根据第二预编码粒度，数据信道第一部分占用的第一子信道依次划分为
Figure PCTCN2020109015-appb-000202
个数据组，利用G个预编码矩阵对
Figure PCTCN2020109015-appb-000203
个数据组上的数据进行解码；第一子信道为M个子信道中控制信道占用的子信道；G为大于或等于1且小于或等于
Figure PCTCN2020109015-appb-000204
的整数；根据第二预编码粒度将数据信道第一部分占用的每一个第二子信道依次划分为
Figure PCTCN2020109015-appb-000205
个第一数据组，利用F个预编码矩阵对
Figure PCTCN2020109015-appb-000206
个第一数据组上的数据进行解码；第二子信道是数据信道第一部分占用的子信道中除第一子信道外的其他子信道；F为大于或等于1且小于或等于
Figure PCTCN2020109015-appb-000207
的整数；根据第二预编码粒度将数据信道第二部分占用的每一个子信道依次划分为
Figure PCTCN2020109015-appb-000208
个第二数据组，利用H个预编码矩阵对
Figure PCTCN2020109015-appb-000209
个第二数据组上的数据进行解码；H为大于或等于1且小于或等于
Figure PCTCN2020109015-appb-000210
的 整数；其中，数据信道第一部分为数据信道中，与控制信道频域不重叠且存在时域重叠的部分；数据信道第二部分为数据信道中，与控制信道时域不重叠且存在频域重叠的部分。
一种可能的实现方式中，
Figure PCTCN2020109015-appb-000211
个数据组中最后一个数据组包括的资源块的数量等于
Figure PCTCN2020109015-appb-000212
Figure PCTCN2020109015-appb-000213
个第一数据组中最后一个数据组包括的资源块的数量等于
Figure PCTCN2020109015-appb-000214
Figure PCTCN2020109015-appb-000215
个第二数据组中最后一个数据组包括的资源块的数量为
Figure PCTCN2020109015-appb-000216
在采用对应各个功能划分各个功能模块的情况下，图27示出上述实施例中所涉及的通信装置的一种可能的结构示意图。图27所示的通信装置可以是本申请实施例所述的第一终端装置或第二终端装置，也可以是第一终端装置或第二终端装置中实现上述方法的部件。如图27所示，通信装置包括处理单元2701以及收发单元2702。处理单元可以是一个或多个处理器，收发单元2702可以是收发器。
处理单元2701，用于支持第一终端装置执行步骤701，和/或用于本文所描述的技术的其它过程。具体地，处理单元2701，根据第一预编码粒度或第二预编码粒度对数据信道上的数据进行预编码，获得待发送的数据，其中，所述第一预编码粒度为子信道，所述第二预编码粒度小于所述子信道。
收发单元2702，用于支持第一终端装置执行步骤702，和/或用于本文所描述的技术的其它过程。具体地，收发单元2702，向第二终端装置发送所述待发送的数据。
一种可能的实现方式中，数据信道占用N个子信道，N为大于1的整数，处理单元2701根据第一预编码粒度对数据信道上的数据进行预编码，包括：
根据第一预编码粒度，数据信道第一部分划分为N-1个预编码资源块组和第一资源区域；第一资源区域为第一子信道与控制信道频域不重叠的部分，第一子信道为N个子信道中控制信道占用的子信道；
处理单元2701，还用于利用P个预编码矩阵对N-1个预编码资源块组上的数据进行预编码，P为大于或等于1且小于或等于N-1的正整数；
第一资源区域划分为Y个预编码资源块组，Y个预编码资源块组中的任意一个预编码资源块组中包含的资源块是连续的，处理单元2701，还用于利用X个预编码矩阵对Y个预编码资源块组上的数据进行预编码；Y为大于等于1的整数，X为大于等于1且小于或等于Y的整数；
根据第一预编码粒度，数据信道第二部分划分为N个预编码资源块组，处理单元2701，还用于利用Z个预编码矩阵对N个预编码资源块组上的数据进行预编码；N个预编码资源块组中的每一个预编码资源块组包含一个子信道，Z为大于或等于1且小于或等于N的整数。
一种可能的实现方式中，数据信道占用一个子信道，处理单元2701，用于根据第一预编码粒度对数据信道上的数据进行预编码，包括：
数据信道第一部分划分为S个预编码资源块组，S个预编码资源块组中的任意一个预编码资源块组中包含的资源块是连续的，处理单元2701，还用于利用T个预编码矩阵对S个预编码资源块组上的数据进行预编码；S为大于等于1的整数，T为大于 或等于1且小于或等于S的整数；
数据信道第二部分为一个预编码资源块组，处理单元2701，还用于利用一个预编码矩阵对一个预编码资源块组上的数据进行预编码。
一种可能的实现方式中，数据信道占用M个子信道，M为大于等于1的整数，每个子信道包括K个资源块，第二预编码粒度为Q个资源块，Q为小于K的整数，处理单元2701根据第二预编码粒度对数据信道上的数据进行预编码，包括：
从数据信道的频域起始资源块开始，根据第二预编码粒度，数据信道依次划分为
Figure PCTCN2020109015-appb-000217
个预编码资源块组，处理单元2701，还用于利用R个预编码矩阵对
Figure PCTCN2020109015-appb-000218
个预编码资源块组上的数据进行预编码；R为大于或等于1且小于或等于
Figure PCTCN2020109015-appb-000219
的整数。
一种可能的实现方式中，
Figure PCTCN2020109015-appb-000220
个预编码资源块组中最后一个预编码资源块组包括的资源块的数量为
Figure PCTCN2020109015-appb-000221
一种可能的实现方式中，数据信道占用M个子信道，M为大于1的整数，每个子信道包括K个资源块，第二预编码粒度为Q个资源块，Q为小于K的整数；处理单元2701，用于根据第二预编码粒度对数据信道上的数据进行预编码，包括：
针对N个子信道中的每一个子信道，从每一个子信道的频域起始资源块开始，根据第二预编码粒度子信道依次划分成
Figure PCTCN2020109015-appb-000222
个预编码资源块组，利用L个预编码矩阵对
Figure PCTCN2020109015-appb-000223
个预编码资源块组上的数据进行预编码；L为大于或等于1且小于或等于
Figure PCTCN2020109015-appb-000224
的整数。
一种可能的实现方式中，
Figure PCTCN2020109015-appb-000225
个预编码资源块组中最后一个预编码资源块组包括的资源块的数量等于
Figure PCTCN2020109015-appb-000226
一种可能的实现方式中，数据信道占用M个子信道，M为大于等于1的整数，子信道包括K个资源块，第二预编码粒度为Q个资源块，Q为小于K的整数，第一终端装置根据第二预编码粒度对数据信道上的数据进行预编码，包括：
从数据信道第一部分的频域起始资源块开始，根据第二预编码粒度，数据信道第一部分依次划分成
Figure PCTCN2020109015-appb-000227
个预编码资源块组；处理单元2701，还用于利用D个预编码矩阵对
Figure PCTCN2020109015-appb-000228
个预编码资源块组上的数据进行预编码；X为控制信道占用的资源块的数量，D为大于或等于1且小于或等于
Figure PCTCN2020109015-appb-000229
的整数；
从数据信道第二部分的频域起始资源块开始，根据第二预编码粒度，数据信道第二部分依次划分成
Figure PCTCN2020109015-appb-000230
个预编码资源块组，处理单元2701，还用于利用W个预编码矩阵对
Figure PCTCN2020109015-appb-000231
个预编码资源块组上的数据进行预编码，W为大于或等于1且小于或等于
Figure PCTCN2020109015-appb-000232
一种可能的实现方式中，
Figure PCTCN2020109015-appb-000233
个预编码资源块组中最后一个预编码资源块组包括的资源块的数量为
Figure PCTCN2020109015-appb-000234
Figure PCTCN2020109015-appb-000235
个预编码资源块组中最后一个预编码资源块组包括的资源块的数量为
Figure PCTCN2020109015-appb-000236
一种可能的实现方式中，数据信道占用M个子信道，M为大于1的整数，每个子信道包括K个资源块，第二预编码粒度为Q个资源块，Q为小于K的整数，处理单元2701根据第二预编码粒度对数据信道上的数据进行预编码，包括：
从数据信道第一部分占用的第一子信道的频域起始资源块开始，根据第二预编码粒度，数据信道第一部分占用的第一子信道依次划分为
Figure PCTCN2020109015-appb-000237
个预编码资源块组，处理单元2701，还用于利用G个预编码矩阵对
Figure PCTCN2020109015-appb-000238
个预编码资源块组上的数据进行预编码；第一子信道为N个子信道中控制信道占用的子信道；G为大于或等于1且小于或等于
Figure PCTCN2020109015-appb-000239
的整数；
根据第二预编码粒度将数据信道第一部分占用的每一个第二子信道依次划分为
Figure PCTCN2020109015-appb-000240
个第一预编码资源块组，处理单元2701，还用于利用F个预编码矩阵对
Figure PCTCN2020109015-appb-000241
个第一预编码资源块组上的数据进行预编码；第二子信道是数据信道第一部分占用的子信道中除第一子信道外的其他子信道；F为大于或等于1且小于或等于
Figure PCTCN2020109015-appb-000242
的整数；
根据第二预编码粒度将数据信道第二部分占用的每一个子信道依次划分为
Figure PCTCN2020109015-appb-000243
个第二预编码资源块组，处理单元2701，还用于利用H个预编码矩阵对
Figure PCTCN2020109015-appb-000244
个第二预编码资源块组上的数据进行预编码；H为大于或等于1且小于或等于
Figure PCTCN2020109015-appb-000245
的整数。
一种可能的实现方式中，
Figure PCTCN2020109015-appb-000246
个预编码资源块组中最后一个预编码资源块组包括的资源块的数量等于
Figure PCTCN2020109015-appb-000247
Figure PCTCN2020109015-appb-000248
个第一预编码资源块组中最后一个预编码资源块组包括的资源块的数量等于
Figure PCTCN2020109015-appb-000249
Figure PCTCN2020109015-appb-000250
个第二预编码资源块组中最后一个预编码资源块组包括的资源块的数量为
Figure PCTCN2020109015-appb-000251
一种可能的实现方式中，在同一资源池中的数据信道以第一预编码粒度或第二预编码粒度进行预编码。需要说明的是，上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述，在此不再赘述。
一种可能的实现方式中，图27所示的通信装置也可以是应用于终端装置中的芯片。所述芯片可以是片上系统(System-On-a-Chip，SOC)或者是具备通信功能的基带芯片等。
其中，以上用于接收/发送的收发单元2702可以是该装置的一种接口电路，用于从其它装置接收信号。例如，当该装置以芯片的方式实现时，该收发单元2702是该芯片的接口电路，该接口电路用于读入或输出基带信号。
示例性的，在采用集成的单元的情况下，本申请实施例提供的通信装置的结构示意图如图28所示。在图28中，该通信装置包括：处理模块2801和通信模块2802。处理模块2801用于对通信装置的动作进行控制管理，例如，执行上述处理单元2701执行的步骤，和/或用于执行本文所描述的技术的其它过程。通信模块2802用于执行上述收发单元2702执行的步骤，支持通信装置与其他设备之间的交互，如与其他终端 装置之间的交互。如图28所示，通信装置还可以包括存储模块2803，存储模块2803用于存储通信装置的程序代码和数据。
当处理模块2801为处理器，通信模块2802为收发器，存储模块2803为存储器时，通信装置为图6所示的通信装置。
通过以上的实施方式的描述，所属领域的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，即将数据库访问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。
在本申请所提供的几个实施例中，应该理解到，所揭露的数据库访问装置和方法，可以通过其它的方式实现。例如，以上所描述的数据库访问装置实施例仅仅是示意性的，例如，所述模块或单元的划分，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装置，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，数据库访问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一个物理单元或多个物理单元，即可以位于一个地方，或者也可以分布到多个不同地方。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，也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个可读取存储介质中。基于这样的理解，本申请实施例的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该软件产品存储在一个存储介质中，包括若干指令用以使得一个设备(可以是单片机，芯片等)或处理器执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、ROM、RAM、磁盘或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何在本申请揭露的技术范围内的变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (50)

  1. 一种数据发送方法，其特征在于，包括：
    第一终端装置根据第一预编码粒度或第二预编码粒度对数据信道上的数据进行预编码，获得待发送的数据，其中，所述第一预编码粒度为子信道，所述第二预编码粒度小于所述子信道；
    所述第一终端装置向第二终端装置发送所述待发送的数据。
  2. 根据权利要求1所述的方法，其特征在于，所述数据信道占用N个子信道，所述N为大于1的整数，
    所述第一终端装置根据所述第一预编码粒度对所述数据信道上的数据进行预编码，包括：
    根据所述第一预编码粒度，数据信道第一部分划分为N-1个预编码资源块组和第一资源区域；所述第一资源区域为第一子信道与控制信道频域不重叠的部分，所述第一子信道为所述N个子信道中所述控制信道占用的子信道；
    利用P个预编码矩阵对所述N-1个预编码资源块组上的数据进行预编码，所述P为大于或等于1且小于或等于N-1的正整数；
    所述第一资源区域划分为Y个预编码资源块组，所述Y个预编码资源块组中的任意一个预编码资源块组中包含的资源块是连续的，利用X个预编码矩阵对所述Y个预编码资源块组上的数据进行预编码；所述Y为大于等于1的整数，所述X为大于等于1且小于或等于Y的整数；
    根据所述第一预编码粒度，数据信道第二部分划分为N个预编码资源块组，利用Z个预编码矩阵对所述N个预编码资源块组上的数据进行预编码；所述N个预编码资源块组中的每一个预编码资源块组包含一个子信道，所述Z为大于或等于1且小于或等于N的整数；
    其中，所述数据信道第一部分为所述数据信道中，与控制信道频域不重叠且存在时域重叠的部分；所述数据信道第二部分为所述数据信道中，与控制信道时域不重叠且存在频域重叠的部分。
  3. 根据权利要求1所述的方法，其特征在于，所述数据信道占用一个子信道，
    所述第一终端装置根据所述第一预编码粒度对所述数据信道上的数据进行预编码，包括：
    数据信道第一部分划分为S个预编码资源块组，所述S个预编码资源块组中的任意一个预编码资源块组中包含的资源块是连续的，利用T个预编码矩阵对所述S个预编码资源块组上的数据进行预编码；所述S为大于等于1的整数，所述T为大于或等于1且小于或等于S的整数；
    数据信道第二部分为一个预编码资源块组，利用一个预编码矩阵对所述一个预编码资源块组上的数据进行预编码；
    其中，所述数据信道第一部分为所述数据信道中，与控制信道频域不重叠且存在时域重叠的部分；所述数据信道第二部分为所述数据信道中，与控制信道时域不重叠且存在频域重叠的部分。
  4. 根据权利要求1所述的方法，其特征在于，所述数据信道占用M个子信道， 所述M为大于等于1的整数，每个所述子信道包括K个资源块，所述第二预编码粒度为Q个资源块，所述Q为小于所述K的整数，
    所述第一终端装置根据所述第二预编码粒度对所述数据信道上的数据进行预编码，包括：
    从所述数据信道的频域起始资源块开始，根据所述第二预编码粒度所述数据信道依次划分为
    Figure PCTCN2020109015-appb-100001
    个预编码资源块组，利用R个预编码矩阵对所述
    Figure PCTCN2020109015-appb-100002
    个预编码资源块组上的数据进行预编码；所述R为大于或等于1且小于或等于所述
    Figure PCTCN2020109015-appb-100003
    的整数。
  5. 根据权利要求4所述的方法，其特征在于，所述
    Figure PCTCN2020109015-appb-100004
    个预编码资源块组中最后一个预编码资源块组包括的资源块的数量为
    Figure PCTCN2020109015-appb-100005
  6. 根据权利要求1所述的方法，其特征在于，所述数据信道占用M个子信道，所述M为大于1的整数，每个所述子信道包括K个资源块，所述第二预编码粒度为Q个资源块，所述Q为小于K的整数；
    所述第一终端装置根据所述第二预编码粒度对所述数据信道上的数据进行预编码，包括：
    针对所述M个子信道中的每一个子信道，从所述每一个子信道的频域起始资源块开始，根据所述第二预编码粒度所述子信道依次划分成
    Figure PCTCN2020109015-appb-100006
    个预编码资源块组，利用L个预编码矩阵对所述
    Figure PCTCN2020109015-appb-100007
    个预编码资源块组上的数据进行预编码；所述L为大于或等于1且小于或等于所述
    Figure PCTCN2020109015-appb-100008
    的整数。
  7. 根据权利要求6所述的方法，其特征在于，所述
    Figure PCTCN2020109015-appb-100009
    个预编码资源块组中最后一个预编码资源块组包括的资源块的数量等于
    Figure PCTCN2020109015-appb-100010
  8. 根据权利要求1所述的方法，其特征在于，所述数据信道占用M个子信道，所述M为大于等于1的整数，所述子信道包括K个资源块，所述第二预编码粒度为Q个资源块，所述Q为小于K的整数，
    所述第一终端装置根据所述第二预编码粒度对所述数据信道上的数据进行预编码，包括：
    从数据信道第一部分的频域起始资源块开始，根据所述第二预编码粒度所述数据信道第一部分依次划分成
    Figure PCTCN2020109015-appb-100011
    个预编码资源块组；利用D个预编码矩阵对所述
    Figure PCTCN2020109015-appb-100012
    个预编码资源块组上的数据进行预编码；所述X为控制信道占用的资源块的数量，所述D为大于或等于1且小于或等于所述
    Figure PCTCN2020109015-appb-100013
    的整数；
    从数据信道第二部分的频域起始资源块开始，根据所述第二预编码粒度所述数据信道第二部分依次划分成
    Figure PCTCN2020109015-appb-100014
    个预编码资源块组，利用W个预编码矩阵对所述
    Figure PCTCN2020109015-appb-100015
    个预编码资源块组上的数据进行预编码，所述W为大于或等于1且小于或等于所述
    Figure PCTCN2020109015-appb-100016
    其中，所述数据信道第一部分为所述数据信道中，与控制信道频域不重叠且存在时域重叠的部分；所述数据信道第二部分为所述数据信道中，与控制信道时域不重叠 且存在频域重叠的部分。
  9. 根据权利要求8所述的方法，其特征在于，所述
    Figure PCTCN2020109015-appb-100017
    个预编码资源块组中最后一个预编码资源块组包括的资源块的数量为
    Figure PCTCN2020109015-appb-100018
    所述
    Figure PCTCN2020109015-appb-100019
    个预编码资源块组中最后一个预编码资源块组包括的资源块的数量为
    Figure PCTCN2020109015-appb-100020
  10. 根据权利要求1所述的方法，其特征在于，所述数据信道占用M个子信道，所述M为大于1的整数，每个所述子信道包括K个资源块，所述第二预编码粒度为Q个资源块，所述Q为小于K的整数，
    所述第一终端装置根据所述第二预编码粒度对所述数据信道上的数据进行预编码，包括：
    从数据信道第一部分占用的第一子信道的频域起始资源块开始，根据所述第二预编码粒度，数据信道第一部分占用的第一子信道依次划分为
    Figure PCTCN2020109015-appb-100021
    个预编码资源块组，利用G个预编码矩阵对所述
    Figure PCTCN2020109015-appb-100022
    个预编码资源块组上的数据进行预编码；所述第一子信道为所述M个子信道中控制信道占用的子信道；所述G为大于或等于1且小于或等于
    Figure PCTCN2020109015-appb-100023
    的整数；
    根据所述第二预编码粒度将所述数据信道第一部分占用的每一个第二子信道依次划分为
    Figure PCTCN2020109015-appb-100024
    个第一预编码资源块组，利用F个预编码矩阵对所述
    Figure PCTCN2020109015-appb-100025
    个第一预编码资源块组上的数据进行预编码；所述第二子信道是所述数据信道第一部分占用的子信道中除所述第一子信道外的其他子信道；所述F为大于或等于1且小于或等于
    Figure PCTCN2020109015-appb-100026
    的整数；
    根据所述第二预编码粒度将数据信道第二部分占用的每一个子信道依次划分为
    Figure PCTCN2020109015-appb-100027
    个第二预编码资源块组，利用H个预编码矩阵对所述
    Figure PCTCN2020109015-appb-100028
    个第二预编码资源块组上的数据进行预编码；所述H为大于或等于1且小于或等于
    Figure PCTCN2020109015-appb-100029
    的整数；
    其中，所述数据信道第一部分为所述数据信道中，与控制信道频域不重叠且存在时域重叠的部分；所述数据信道第二部分为所述数据信道中，与控制信道时域不重叠且存在频域重叠的部分。
  11. 根据权利要求10所述的方法，其特征在于，
    所述
    Figure PCTCN2020109015-appb-100030
    个预编码资源块组中最后一个预编码资源块组包括的资源块的数量等于
    Figure PCTCN2020109015-appb-100031
    所述
    Figure PCTCN2020109015-appb-100032
    个第一预编码资源块组中最后一个预编码资源块组包括的资源块的数量等于
    Figure PCTCN2020109015-appb-100033
    所述
    Figure PCTCN2020109015-appb-100034
    个第二预编码资源块组中最后一个预编码资源块组包括的资源块的数量为
    Figure PCTCN2020109015-appb-100035
  12. 根据权利要求1-11任一项所述的方法，其特征在于，在同一资源池中的数据信道以所述第一预编码粒度或所述第二预编码粒度进行预编码。
  13. 根据权利要求1-12任一项所述的方法，其特征在于，所述第一预编码粒度或 所述第二预编码粒度为网络侧通过无线资源控制RRC信令配置的。
  14. 一种数据接收方法，其特征在于，包括：
    第二终端装置接收来自第一终端装置的数据；
    第二终端装置根据第一预编码粒度或第二预编码粒度对所述数据进行解码，其中，所述第一预编码粒度为子信道，所述第二预编码粒度小于所述子信道。
  15. 根据权利要求14所述的方法，其特征在于，所述第一终端装置与所述第二终端装置之间的数据信道占用N个子信道，所述N为大于1的整数，
    所述第二终端装置根据第一预编码粒度或第二预编码粒度对所述数据进行解码，包括：
    根据所述第一预编码粒度，数据信道第一部分划分为N-1个数据组和第一资源区域；所述第一资源区域为第一子信道与控制信道频域不重叠的部分，所述第一子信道为所述N个子信道中所述控制信道占用的子信道；
    利用P个预编码矩阵对所述N-1个数据组上的数据进行解码，所述P为大于或等于1且小于或等于N-1的正整数；
    所述第一资源区域划分为Y个数据组，所述Y个数据组中的任意一个数据组中包含的资源块是连续的，利用X个预编码矩阵对所述Y个数据组上的数据进行解码；所述Y为大于等于1的整数，所述X为大于等于1且小于或等于Y的整数；
    根据所述第一预编码粒度，数据信道第二部分划分为N个数据组，利用Z个预编码矩阵对所述N个数据组上的数据进行解码；所述N个数据组中的每一个数据组包含一个子信道，所述Z为大于或等于1且小于或等于N的整数；
    其中，所述数据信道第一部分为所述数据信道中，与控制信道频域不重叠且存在时域重叠的部分；所述数据信道第二部分为所述数据信道中，与控制信道时域不重叠且存在频域重叠的部分。
  16. 根据权利要求14所述的方法，其特征在于，所述第一终端装置和第二终端装置之间的数据信道占用一个子信道，
    所述第二终端装置根据第一预编码粒度或第二预编码粒度对所述数据进行解码，包括：
    数据信道第一部分划分为S个数据组，所述S个数据组中的任意一个数据组中包含的资源块是连续的，利用T个预编码矩阵对所述S个数据组上的数据进行解码；所述S为大于等于1的整数，所述T为大于或等于1且小于或等于S的整数；
    数据信道第二部分为一个数据组，利用一个预编码矩阵对所述一个数据组上的数据进行解码；
    其中，所述数据信道第一部分为所述数据信道中，与控制信道频域不重叠且存在时域重叠的部分；所述数据信道第二部分为所述数据信道中，与控制信道时域不重叠且存在频域重叠的部分。
  17. 根据权利要求14所述的方法，其特征在于，所述第一终端装置与所述第二终端装置之间的数据信道占用M个子信道，所述M为大于等于1的整数，每个所述子信道包括K个资源块，所述第二预编码粒度为Q个资源块，所述Q为小于所述K的整数，
    所述第二终端装置根据第一预编码粒度或第二预编码粒度对所述数据进行解码，包括：
    从所述数据信道的频域起始资源块开始，根据所述第二预编码粒度所述数据信道依次划分为
    Figure PCTCN2020109015-appb-100036
    个数据组，利用R个预编码矩阵对所述
    Figure PCTCN2020109015-appb-100037
    个数据组上的数据进行解码；所述R为大于或等于1且小于或等于所述
    Figure PCTCN2020109015-appb-100038
    的整数。
  18. 根据权利要求17所述的方法，其特征在于，所述
    Figure PCTCN2020109015-appb-100039
    个数据组中最后一个数据组包括的资源块的数量为
    Figure PCTCN2020109015-appb-100040
  19. 根据权利要求14所述的方法，其特征在于，所述第一终端装置与所述第二终端装置之间的数据信道占用M个子信道，所述M为大于1的整数，每个所述子信道包括K个资源块，所述第二预编码粒度为Q个资源块，所述Q为小于K的整数；
    所述第二终端装置根据所述第二预编码粒度对所述数据进行解码，包括：
    针对所述M个子信道中的每一个子信道，从所述每一个子信道的频域起始资源块开始，根据所述第二预编码粒度所述子信道依次划分成
    Figure PCTCN2020109015-appb-100041
    个数据组，利用L个预编码矩阵对所述
    Figure PCTCN2020109015-appb-100042
    个数据组上的数据进行解码；所述L为大于或等于1且小于或等于所述
    Figure PCTCN2020109015-appb-100043
    的整数。
  20. 根据权利要求19所述的方法，其特征在于，所述
    Figure PCTCN2020109015-appb-100044
    个数据组中最后一个数据组包括的资源块的数量等于
    Figure PCTCN2020109015-appb-100045
  21. 根据权利要求14所述的方法，其特征在于，所述第一终端装置与所述第二终端装置之间的数据信道占用M个子信道，所述M为大于等于1的整数，所述子信道包括K个资源块，所述第二预编码粒度为Q个资源块，所述Q为小于K的整数，
    所述第二终端装置根据第一预编码粒度或第二预编码粒度对所述数据进行解码，包括：
    从数据信道第一部分的频域起始资源块开始，根据所述第二预编码粒度所述数据信道第一部分依次划分成
    Figure PCTCN2020109015-appb-100046
    个数据组；利用D个预编码矩阵对所述
    Figure PCTCN2020109015-appb-100047
    个数据组上的数据进行解码；所述X为控制信道占用的资源块的数量，所述D为大于或等于1且小于或等于所述
    Figure PCTCN2020109015-appb-100048
    的整数；
    从数据信道第二部分的频域起始资源块开始，根据所述第二预编码粒度所述数据信道第二部分依次划分成
    Figure PCTCN2020109015-appb-100049
    个数据组，利用W个预编码矩阵对所述
    Figure PCTCN2020109015-appb-100050
    个数据组上的数据进行解码，所述W为大于或等于1且小于或等于所述
    Figure PCTCN2020109015-appb-100051
    其中，所述数据信道第一部分为所述数据信道中，与控制信道频域不重叠且存在时域重叠的部分；所述数据信道第二部分为所述数据信道中，与控制信道时域不重叠且存在频域重叠的部分。
  22. 根据权利要求21所述的方法，其特征在于，所述
    Figure PCTCN2020109015-appb-100052
    个数据组中最后一个数据组包括的资源块的数量为
    Figure PCTCN2020109015-appb-100053
    所述
    Figure PCTCN2020109015-appb-100054
    个数据组中最后一个数据组包括的资源块的数量为
    Figure PCTCN2020109015-appb-100055
  23. 根据权利要求14所述的方法，其特征在于，所述第一终端装置与所述第二终端装置之间的数据信道占用M个子信道，所述M为大于1的整数，每个所述子信道包括K个资源块，所述第二预编码粒度为Q个资源块，所述Q为小于K的整数，
    所述第一终端装置根据所述第二预编码粒度对所述数据进行解码，包括：
    从数据信道第一部分占用的第一子信道的频域起始资源块开始，根据所述第二预编码粒度，数据信道第一部分占用的第一子信道依次划分为
    Figure PCTCN2020109015-appb-100056
    个数据组，利用G个预编码矩阵对所述
    Figure PCTCN2020109015-appb-100057
    个数据组上的数据进行解码；所述第一子信道为所述M个子信道中控制信道占用的子信道；所述G为大于或等于1且小于或等于
    Figure PCTCN2020109015-appb-100058
    的整数；
    根据所述第二预编码粒度将所述数据信道第一部分占用的每一个第二子信道依次划分为
    Figure PCTCN2020109015-appb-100059
    个第一数据组，利用F个预编码矩阵对所述
    Figure PCTCN2020109015-appb-100060
    个第一数据组上的数据进行解码；所述第二子信道是所述数据信道第一部分占用的子信道中除所述第一子信道外的其他子信道；所述F为大于或等于1且小于或等于
    Figure PCTCN2020109015-appb-100061
    的整数；
    根据所述第二预编码粒度将数据信道第二部分占用的每一个子信道依次划分为
    Figure PCTCN2020109015-appb-100062
    个第二数据组，利用H个预编码矩阵对所述
    Figure PCTCN2020109015-appb-100063
    个第二数据组上的数据进行解码；所述H为大于或等于1且小于或等于
    Figure PCTCN2020109015-appb-100064
    的整数；
    其中，所述数据信道第一部分为所述数据信道中，与控制信道频域不重叠且存在时域重叠的部分；所述数据信道第二部分为所述数据信道中，与控制信道时域不重叠且存在频域重叠的部分。
  24. 根据权利要求23所述的方法，其特征在于，
    所述
    Figure PCTCN2020109015-appb-100065
    个数据组中最后一个数据组包括的资源块的数量等于
    Figure PCTCN2020109015-appb-100066
    所述
    Figure PCTCN2020109015-appb-100067
    个第一数据组中最后一个数据组包括的资源块的数量等于
    Figure PCTCN2020109015-appb-100068
    所述
    Figure PCTCN2020109015-appb-100069
    个第二数据组中最后一个数据组包括的资源块的数量为
    Figure PCTCN2020109015-appb-100070
  25. 一种第一终端装置，其特征在于，包括：
    处理单元，用于根据第一预编码粒度或第二预编码粒度对数据信道上的数据进行预编码，获得待发送的数据，其中，所述第一预编码粒度为子信道，所述第二预编码粒度小于所述子信道；
    收发单元，用于向第二终端装置发送所述待发送的数据。
  26. 根据权利要求25所述的装置，其特征在于，所述数据信道占用N个子信道，所述N为大于1的整数，
    所述处理单元，还用于根据所述第一预编码粒度，数据信道第一部分划分为N-1 个预编码资源块组和第一资源区域；所述第一资源区域为第一子信道与控制信道频域不重叠的部分，所述第一子信道为所述N个子信道中所述控制信道占用的子信道；
    所述处理单元，还用于利用P个预编码矩阵对所述N-1个预编码资源块组上的数据进行预编码，所述P为大于或等于1且小于或等于N-1的正整数；
    所述第一资源区域划分为Y个预编码资源块组，所述Y个预编码资源块组中的任意一个预编码资源块组中包含的资源块是连续的，所述处理单元，还用于利用X个预编码矩阵对所述Y个预编码资源块组上的数据进行预编码；所述Y为大于等于1的整数，所述X为大于等于1且小于或等于Y的整数；
    根据所述第一预编码粒度，数据信道第二部分划分为N个预编码资源块组，所述处理单元，还用于利用Z个预编码矩阵对所述N个预编码资源块组上的数据进行预编码；所述N个预编码资源块组中的每一个预编码资源块组包含一个子信道，所述Z为大于或等于1且小于或等于N的整数；
    其中，所述数据信道第一部分为所述数据信道中，与控制信道频域不重叠且存在时域重叠的部分；所述数据信道第二部分为所述数据信道中，与控制信道时域不重叠且存在频域重叠的部分。
  27. 根据权利要求25所述的装置，其特征在于，所述数据信道占用一个子信道，
    所述数据信道第一部分划分为S个预编码资源块组，所述S个预编码资源块组中的任意一个预编码资源块组中包含的资源块是连续的，所述处理单元，还用于利用T个预编码矩阵对所述S个预编码资源块组上的数据进行预编码；所述S为大于等于1的整数，所述T为大于或等于1且小于或等于S的整数；
    数据信道第二部分为一个预编码资源块组，所述处理单元，还用于利用一个预编码矩阵对所述一个预编码资源块组上的数据进行预编码；
    其中，所述数据信道第一部分为所述数据信道中，与控制信道频域不重叠且存在时域重叠的部分；所述数据信道第二部分为所述数据信道中，与控制信道时域不重叠且存在频域重叠的部分。
  28. 根据权利要求25所述的装置，其特征在于，所述数据信道占用M个子信道，所述M为大于等于1的整数，每个所述子信道包括K个资源块，所述第二预编码粒度为Q个资源块，所述Q为小于所述K的整数，
    从所述数据信道的频域起始资源块开始，根据所述第二预编码粒度所述数据信道依次划分为
    Figure PCTCN2020109015-appb-100071
    个预编码资源块组，所述处理单元，还用于利用R个预编码矩阵对所述
    Figure PCTCN2020109015-appb-100072
    个预编码资源块组上的数据进行预编码；所述R为大于或等于1且小于或等于所述
    Figure PCTCN2020109015-appb-100073
    的整数。
  29. 根据权利要求28所述的装置，其特征在于，所述
    Figure PCTCN2020109015-appb-100074
    个预编码资源块组中最后一个预编码资源块组包括的资源块的数量为
    Figure PCTCN2020109015-appb-100075
  30. 根据权利要求25所述的装置，其特征在于，所述数据信道占用M个子信道，所述M为大于1的整数，每个所述子信道包括K个资源块，所述第二预编码粒度为Q个资源块，所述Q为小于K的整数；
    从所述M个子信道中的每一个子信道的频域起始资源块开始，根据所述第二预编码粒度所述子信道依次划分成
    Figure PCTCN2020109015-appb-100076
    个预编码资源块组，所述处理单元，还用于利用L个预编码矩阵对所述
    Figure PCTCN2020109015-appb-100077
    个预编码资源块组上的数据进行预编码；所述L为大于或等于1且小于或等于所述
    Figure PCTCN2020109015-appb-100078
    的整数。
  31. 根据权利要求25所述的装置，其特征在于，所述数据信道占用M个子信道，所述M为大于等于1的整数，所述子信道包括K个资源块，所述第二预编码粒度为Q个资源块，所述Q为小于K的整数，
    从数据信道第一部分的频域起始资源块开始，根据所述第二预编码粒度所述数据信道第一部分依次划分成
    Figure PCTCN2020109015-appb-100079
    个预编码资源块组；所述处理单元，还用于利用D个预编码矩阵对所述
    Figure PCTCN2020109015-appb-100080
    个预编码资源块组上的数据进行预编码；所述X为控制信道占用的资源块的数量，所述D为大于或等于1且小于或等于所述
    Figure PCTCN2020109015-appb-100081
    的整数；
    从数据信道第二部分的频域起始资源块开始，根据所述第二预编码粒度所述数据信道第二部分依次划分成
    Figure PCTCN2020109015-appb-100082
    个预编码资源块组，所述处理单元，还用于利用W个预编码矩阵对所述
    Figure PCTCN2020109015-appb-100083
    个预编码资源块组上的数据进行预编码，所述W为大于或等于1且小于或等于所述
    Figure PCTCN2020109015-appb-100084
    其中，所述数据信道第一部分为所述数据信道中，与控制信道频域不重叠且存在时域重叠的部分；所述数据信道第二部分为所述数据信道中，与控制信道时域不重叠且存在频域重叠的部分。
  32. 根据权利要求31所述的装置，其特征在于，所述
    Figure PCTCN2020109015-appb-100085
    个预编码资源块组中最后一个预编码资源块组包括的资源块的数量为
    Figure PCTCN2020109015-appb-100086
    所述
    Figure PCTCN2020109015-appb-100087
    个预编码资源块组中最后一个预编码资源块组包括的资源块的数量为
    Figure PCTCN2020109015-appb-100088
  33. 根据权利要求25所述的装置，其特征在于，所述数据信道占用M个子信道，所述M为大于1的整数，每个所述子信道包括K个资源块，所述第二预编码粒度为Q个资源块，所述Q为小于K的整数，
    从数据信道第一部分占用的第一子信道的频域起始资源块开始，根据所述第二预编码粒度数据信道，第一部分占用的第一子信道依次划分为
    Figure PCTCN2020109015-appb-100089
    个预编码资源块组，所述处理单元，还用于利用G个预编码矩阵对所述
    Figure PCTCN2020109015-appb-100090
    个预编码资源块组上的数据进行预编码；所述第一子信道为所述M个子信道中控制信道占用的子信道；所述G为大于或等于1且小于或等于
    Figure PCTCN2020109015-appb-100091
    的整数；
    根据所述第二预编码粒度将所述数据信道第一部分占用的每一个第二子信道依次划分为
    Figure PCTCN2020109015-appb-100092
    个第一预编码资源块组，所述处理单元，还用于利用F个预编码矩阵对所述
    Figure PCTCN2020109015-appb-100093
    个第一预编码资源块组上的数据进行预编码；所述第二子信道是所述数据信道第一部分占用的子信道中除所述第一子信道外的其他子信道；所述F为大于 或等于1且小于或等于
    Figure PCTCN2020109015-appb-100094
    的整数；
    根据所述第二预编码粒度将数据信道第二部分占用的每一个子信道依次划分为
    Figure PCTCN2020109015-appb-100095
    个第二预编码资源块组，所述处理单元，还用于利用H个预编码矩阵对所述
    Figure PCTCN2020109015-appb-100096
    个第二预编码资源块组上的数据进行预编码；所述H为大于或等于1且小于或等于
    Figure PCTCN2020109015-appb-100097
    的整数；
    其中，所述数据信道第一部分为所述数据信道中，与控制信道频域不重叠且存在时域重叠的部分；所述数据信道第二部分为所述数据信道中，与控制信道时域不重叠且存在频域重叠的部分。
  34. 根据权利要求33所述的装置，其特征在于，所述
    Figure PCTCN2020109015-appb-100098
    个预编码资源块组中最后一个预编码资源块组包括的资源块的数量等于
    Figure PCTCN2020109015-appb-100099
    所述
    Figure PCTCN2020109015-appb-100100
    个第一预编码资源块组中最后一个预编码资源块组包括的资源块的数量等于
    Figure PCTCN2020109015-appb-100101
    所述
    Figure PCTCN2020109015-appb-100102
    个第二预编码资源块组中最后一个预编码资源块组包括的资源块的数量为
    Figure PCTCN2020109015-appb-100103
  35. 根据权利要求25-34任一项所述的装置，其特征在于，在同一资源池中的数据信道以所述第一预编码粒度或所述第二预编码粒度进行预编码。
  36. 一种第二终端装置，其特征在于，包括：
    收发单元，用于接收来自第一终端装置的数据；
    处理单元，用于根据第一预编码粒度或第二预编码粒度对所述数据进行解码，其中，所述第一预编码粒度为子信道，所述第二预编码粒度小于所述子信道。
  37. 根据权利要求36所述的装置，其特征在于，所述第一终端装置与所述第二终端装置之间的数据信道占用N个子信道，所述N为大于1的整数，
    根据所述第一预编码粒度，数据信道第一部分划分为N-1个数据组和第一资源区域；所述第一资源区域为第一子信道与控制信道频域不重叠的部分，所述第一子信道为所述N个子信道中控制信道占用的子信道；
    所述处理单元，还用于利用P个预编码矩阵对所述N-1个数据组上的数据进行解码，所述P为大于或等于1且小于或等于N-1的正整数；
    所述第一资源区域划分为Y个数据组，所述Y个数据组中的任意一个数据组中包含的资源块是连续的，所述处理单元，还用于利用X个预编码矩阵对所述Y个数据组上的数据进行解码；所述Y为大于等于1的整数，所述X为大于等于1且小于或等于Y的整数；
    根据所述第一预编码粒度，数据信道第二部分划分为N个数据组，所述处理单元，还用于利用Z个预编码矩阵对所述N个数据组上的数据进行解码；所述N个数据组中的每一个数据组包含一个子信道，所述Z为大于或等于1且小于或等于N的整数；
    其中，所述数据信道第一部分为所述数据信道中，与控制信道频域不重叠且存在时域重叠的部分；所述数据信道第二部分为所述数据信道中，与控制信道时域不重叠且存在频域重叠的部分。
  38. 根据权利要求36所述的装置，其特征在于，所述第一终端装置与所述第二终端装置之间的数据信道占用一个子信道，
    所述数据信道第一部分划分为S个数据组，所述S个数据组中的任意一个数据组中包含的资源块是连续的，所述处理单元，还用于利用T个预编码矩阵对所述S个数据组上的数据进行解码；所述S为大于等于1的整数，所述T为大于或等于1且小于或等于S的整数；
    数据信道第二部分为一个数据组，所述处理单元，还用于利用一个预编码矩阵对所述一个数据组上的数据进行解码；
    其中，所述数据信道第一部分为所述数据信道中，与控制信道频域不重叠且存在时域重叠的部分；所述数据信道第二部分为所述数据信道中，与控制信道时域不重叠且存在频域重叠的部分。
  39. 根据权利要求36所述的装置，其特征在于，所述第一终端装置与所述第二终端装置之间的数据信道占用M个子信道，所述M为大于等于1的整数，每个所述子信道包括K个资源块，所述第二预编码粒度为Q个资源块，所述Q为小于所述K的整数，
    从所述数据信道的频域起始资源块开始，根据所述第二预编码粒度所述数据信道依次划分为
    Figure PCTCN2020109015-appb-100104
    个数据组，所述处理单元，还用于利用R个预编码矩阵对所述
    Figure PCTCN2020109015-appb-100105
    个数据组上的数据进行解码；所述R为大于或等于1且小于或等于所述
    Figure PCTCN2020109015-appb-100106
    的整数。
  40. 根据权利要求39所述的装置，其特征在于，所述
    Figure PCTCN2020109015-appb-100107
    个数据组中最后一个数据组包括的资源块的数量为
    Figure PCTCN2020109015-appb-100108
  41. 根据权利要求36所述的装置，其特征在于，所述第一终端装置与所述第二终端装置之间的数据信道占用M个子信道，所述M为大于1的整数，每个所述子信道包括K个资源块，所述第二预编码粒度为Q个资源块，所述Q为小于K的整数；
    从所述M个子信道中的每一个子信道的频域起始资源块开始，根据所述第二预编码粒度所述子信道依次划分成
    Figure PCTCN2020109015-appb-100109
    个数据组，所述处理单元，还用于利用L个预编码矩阵对所述
    Figure PCTCN2020109015-appb-100110
    个数据组上的数据进行解码；所述L为大于或等于1且小于或等于所述
    Figure PCTCN2020109015-appb-100111
    的整数。
  42. 根据权利要求41所述的装置，其特征在于，所述
    Figure PCTCN2020109015-appb-100112
    个数据组中最后一个数据组包括的资源块的数量等于
    Figure PCTCN2020109015-appb-100113
  43. 根据权利要求36所述的装置，其特征在于，所述第一终端装置与所述第二终端装置之间的数据信道占用M个子信道，所述M为大于等于1的整数，所述子信道包括K个资源块，所述第二预编码粒度为Q个资源块，所述Q为小于K的整数，
    从数据信道第一部分的频域起始资源块开始，根据所述第二预编码粒度所述数据信道第一部分依次划分成
    Figure PCTCN2020109015-appb-100114
    个数据组；所述处理单元，还用于利用D个预编码矩阵对所述
    Figure PCTCN2020109015-appb-100115
    个数据组上的数据进行解码；所述X为控制信道占用的资源块的数量，所述D为大于或等于1且小于或等于所述
    Figure PCTCN2020109015-appb-100116
    的整数；
    从数据信道第二部分的频域起始资源块开始，根据所述第二预编码粒度所述数据信道第二部分依次划分成
    Figure PCTCN2020109015-appb-100117
    个数据组，所述处理单元，还用于利用W个预编码矩阵对所述
    Figure PCTCN2020109015-appb-100118
    个数据组上的数据进行解码，所述W为大于或等于1且小于或等于所述
    Figure PCTCN2020109015-appb-100119
    其中，所述数据信道第一部分为所述数据信道中，与控制信道频域不重叠且存在时域重叠的部分；所述数据信道第二部分为所述数据信道中，与控制信道时域不重叠且存在频域重叠的部分。
  44. 根据权利要求43所述的装置，其特征在于，所述
    Figure PCTCN2020109015-appb-100120
    个数据组中最后一个数据组包括的资源块的数量为
    Figure PCTCN2020109015-appb-100121
    所述
    Figure PCTCN2020109015-appb-100122
    个数据组中最后一个数据组包括的资源块的数量为
    Figure PCTCN2020109015-appb-100123
  45. 根据权利要求36所述的装置，其特征在于，所述第一终端装置与所述第二终端装置之间的数据信道占用M个子信道，所述M为大于1的整数，每个所述子信道包括K个资源块，所述第二预编码粒度为Q个资源块，所述Q为小于K的整数，
    从数据信道第一部分占用的第一子信道的频域起始资源块开始，根据所述第二预编码粒度，数据信道第一部分占用的第一子信道依次划分为
    Figure PCTCN2020109015-appb-100124
    个数据组，所述处理单元，还用于利用G个预编码矩阵对所述
    Figure PCTCN2020109015-appb-100125
    个数据组上的数据进行解码；所述第一子信道为所述M个子信道中控制信道占用的子信道；所述G为大于或等于1且小于或等于
    Figure PCTCN2020109015-appb-100126
    的整数；
    根据所述第二预编码粒度将所述数据信道第一部分占用的每一个第二子信道依次划分为
    Figure PCTCN2020109015-appb-100127
    个第一数据组，所述处理单元，还用于利用F个预编码矩阵对所述
    Figure PCTCN2020109015-appb-100128
    个第一数据组上的数据进行解码；所述第二子信道是所述数据信道第一部分占用的子信道中除所述第一子信道外的其他子信道；所述F为大于或等于1且小于或等于
    Figure PCTCN2020109015-appb-100129
    的整数；
    根据所述第二预编码粒度将数据信道第二部分占用的每一个子信道依次划分为
    Figure PCTCN2020109015-appb-100130
    个第二数据组，所述处理单元，还用于利用H个预编码矩阵对所述
    Figure PCTCN2020109015-appb-100131
    个第二数据组上的数据进行解码；所述H为大于或等于1且小于或等于
    Figure PCTCN2020109015-appb-100132
    的整数；
    其中，所述数据信道第一部分为所述数据信道中，与控制信道频域不重叠且存在时域重叠的部分；所述数据信道第二部分为所述数据信道中，与控制信道时域不重叠且存在频域重叠的部分。
  46. 根据权利要求45所述的装置，其特征在于，所述
    Figure PCTCN2020109015-appb-100133
    个数据组中最后一个数据组包括的资源块的数量等于
    Figure PCTCN2020109015-appb-100134
    所述
    Figure PCTCN2020109015-appb-100135
    个第一数据组中最后一个数据组包括的资源块的数量等于
    Figure PCTCN2020109015-appb-100136
    所述
    Figure PCTCN2020109015-appb-100137
    个第二数据组中最后一个数据组包括的资源块的数量为
    Figure PCTCN2020109015-appb-100138
  47. 一种通信装置，其特征在于，包括至少一个处理器和存储器，所述至少一个处理器与所述存储器耦合；
    所述存储器，用于存储计算机程序；
    所述至少一个处理器，用于执行所述存储器中存储的计算机程序，以使得所述装置执行如权利要求1至13中任一项所述的方法。
  48. 一种通信装置，其特征在于，包括至少一个处理器和存储器，所述至少一个处理器与所述存储器耦合；
    所述存储器，用于存储计算机程序；所述至少一个处理器，用于执行所述存储器中存储的计算机程序，以使得所述装置执行如权利要求14至24中任一项所述的方法。
  49. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质存储有计算机程序或指令，当所述计算机程序或指令被运行时，实现如权利要求1至13中任一项所述的方法。
  50. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质存储有计算机程序或指令，当所述计算机程序或指令被运行时，实现如权利要求14至24中任一项所述的方法。
PCT/CN2020/109015 2019-08-16 2020-08-13 一种数据发送方法、数据接收方法及装置 WO2021031982A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910760834.5A CN112398511B (zh) 2019-08-16 2019-08-16 一种数据发送方法、数据接收方法及装置
CN201910760834.5 2019-08-16

Publications (1)

Publication Number Publication Date
WO2021031982A1 true WO2021031982A1 (zh) 2021-02-25

Family

ID=74603106

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/109015 WO2021031982A1 (zh) 2019-08-16 2020-08-13 一种数据发送方法、数据接收方法及装置

Country Status (2)

Country Link
CN (1) CN112398511B (zh)
WO (1) WO2021031982A1 (zh)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101931442A (zh) * 2009-06-22 2010-12-29 大唐移动通信设备有限公司 一种信息指示的方法及装置
CN108631833A (zh) * 2017-03-24 2018-10-09 北京展讯高科通信技术有限公司 上行预编码传输方法、装置及用户设备
WO2019098748A1 (ko) * 2017-11-16 2019-05-23 엘지전자 주식회사 무선 통신 시스템에서 신호를 수신하는 방법 및 장치

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10292143B2 (en) * 2015-04-09 2019-05-14 Intel IP Corporation Methods, apparatuses, and systems for enhancement of evolved physical downlink control channel for machine type communications
CN107370561A (zh) * 2016-05-13 2017-11-21 北京三星通信技术研究有限公司 一种车联网通信中pscch的发送方法及设备
WO2018089878A1 (en) * 2016-11-14 2018-05-17 Intel Corporation Precoding assignments for communication systems
EP3568945A1 (en) * 2017-01-13 2019-11-20 IDAC Holdings, Inc. Methods, apparatuses and systems directed to phase-continuous frequency selective precoding
BR112019014611A2 (pt) * 2017-01-17 2020-02-18 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Método e dispositivo de transmissão de sinal

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101931442A (zh) * 2009-06-22 2010-12-29 大唐移动通信设备有限公司 一种信息指示的方法及装置
CN108631833A (zh) * 2017-03-24 2018-10-09 北京展讯高科通信技术有限公司 上行预编码传输方法、装置及用户设备
WO2019098748A1 (ko) * 2017-11-16 2019-05-23 엘지전자 주식회사 무선 통신 시스템에서 신호를 수신하는 방법 및 장치

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SAMSUNG: "PRB bundling for NR DMRS", 3GPP DRAFT; R1-1710646 PRB BUNDLING FOR NR, vol. RAN WG1, 16 June 2017 (2017-06-16), Qingdao, P.R. China, pages 1 - 5, XP051304319 *

Also Published As

Publication number Publication date
CN112398511B (zh) 2022-05-13
CN112398511A (zh) 2021-02-23

Similar Documents

Publication Publication Date Title
US11239950B2 (en) Method for configuring channel state information reporting band and communications apparatus
US11424898B2 (en) Demodulation reference signal indicating and receiving methods, transmit end, and receive end
US20220200668A1 (en) Communications method and device
US11736170B2 (en) Data transmission method, terminal device, and network device
WO2018202096A1 (zh) 传输数据的方法、终端设备和网络设备
KR102059331B1 (ko) Lte에서 mtc 타입 장치들을 지원하는 전송 모드 및 피드백 설계들
US20200260477A1 (en) Scheduling method and device in wireless communication system providing broadband service
CN115426091A (zh) 用于复用信道状态信息的方法和装置
US10511411B2 (en) Method for configuring channel state information reporting band and communications apparatus
US9246568B2 (en) Apparatus and method for non-codebook based precoding
CN102055570B (zh) 半静态调度数据的传输方法及装置
WO2020125655A1 (zh) 一种通信方法及设备
BR112019027793B1 (pt) Método de indicação de recurso, dispositivo terminal, dispositivo de rede, meio de armazenamento não-transitório legível por computador, chip e produto de instrução de computador
US11445396B2 (en) Channel measurement method and apparatus
CN112312552B (zh) 一种数据传输方法、装置及系统
KR20190105075A (ko) 통신 방법, 네트워크 디바이스, 단말 디바이스, 컴퓨터 판독 가능형 저장 매체, 컴퓨터 프로그램 제품, 프로세싱 장치 및 통신 시스템
RU2765207C1 (ru) Способ связи, а также система и устройство связи
US20220321250A1 (en) Method and apparatus for channel state information feedback in communication system
US11290906B2 (en) Channel measurement method
CN112671442B (zh) 通信方法和通信装置
JP5738377B2 (ja) セルラー電話通信システムにおけるアップリンク制御シグナリング
WO2021031982A1 (zh) 一种数据发送方法、数据接收方法及装置
WO2018201830A1 (zh) 资源配置方法、装置、存储介质及处理器
WO2023226833A1 (zh) 探测参考信号传输的方法和通信装置
CN110971283A (zh) 一种通信方法及设备

Legal Events

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

Ref document number: 20854550

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20854550

Country of ref document: EP

Kind code of ref document: A1