CN114465699A

CN114465699A - Method and device used in user equipment and base station for wireless communication

Info

Publication number: CN114465699A
Application number: CN202011236554.3A
Authority: CN
Inventors: 吴克颖; 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2020-11-09
Filing date: 2020-11-09
Publication date: 2022-05-10
Anticipated expiration: 2040-11-09
Also published as: CN114465699B

Abstract

The application discloses a method and a device in a user equipment, a base station and the like used for wireless communication. A first node receives a first signaling; a first signal is transmitted. The first signaling is used to determine scheduling information of the first signal; the first signaling comprises a first domain; a first rank number is used to determine a first codebook, the first codebook comprising a number of codewords that is used to determine a first candidate integer; a second rank is used to determine a second codebook comprising a number of codewords used to determine a second candidate integer; the first candidate integer and the second candidate integer are used together to determine a number of bits for the first domain; the first rank number is configurable; the second rank is default or configurable and is configured by a different higher layer parameter than the first rank; the first domain is used to determine a precoding of the first signal. The method reduces the signaling overhead in the TRP/panel uplink transmission based on the codebook.

Description

Method and device used in user equipment and base station for wireless communication

Technical Field

The present application relates to a transmission method and apparatus in a wireless communication system, and more particularly, to a transmission method and apparatus for a wireless signal in a wireless communication system supporting a cellular network.

Background

The multi-antenna technology is a key technology in 3GPP (3rd Generation Partner Project) LTE (Long-term Evolution) system and NR (New Radio) system. Additional spatial degrees of freedom are obtained by configuring multiple antennas at a communication node, such as a base station or a UE (User Equipment). The plurality of antennas form a beam pointing to a specific direction through beamforming to improve communication quality. When a plurality of antennas belong to a plurality of TRP (Transmitter Receiver Point)/panel, an additional diversity gain can be obtained by using a spatial difference between different TRPs/panels. In NR R (release) R16, repeated transmission based on multiple TRP is used to improve the transmission reliability of a downlink physical layer data channel.

Codebook-based uplink transmission is a commonly used multi-antenna based transmission scheme in LTE and NR systems. The base station determines a precoding matrix through the uplink reference signal and indicates the precoding matrix in the scheduling signaling. The UE performs precoding on uplink transmission by adopting the precoding matrix, so that multi-antenna diversity and/or multiplexing gain is obtained.

Disclosure of Invention

In NR R17 and its successors, the multi-TRP/panel based transmission scheme will continue to evolve, with one important aspect including for the enhancement of the uplink physical layer data channel. Similar to the downlink physical layer data channel, the transmission reliability of the uplink physical layer data channel can be improved by repeating the transmission with beams for different TRP/panels. The precoding matrix needed for the transmission of different TRP/panels is different. In LTE and NR systems, the precoding matrix may be indicated by scheduling signaling. Indicating different precoding matrices for different TRP/panel would bring additional signaling overhead. How to reduce the additional signaling overhead on the basis of ensuring the multi-TRP/panel transmission gain is a problem to be solved.

In view of the above, the present application discloses a solution. It should be noted that, although the above description uses the multi-TRP/panel scenario and codebook-based uplink transmission as examples, the present application is also applicable to other scenarios such as single-TRP/panel scenario and non-codebook-based uplink transmission, and achieves similar technical effects in the multi-TRP/panel scenario and codebook-based uplink transmission. Furthermore, the adoption of a unified solution for different scenarios (including but not limited to multiple TRP/panel, single TRP/panel, codebook-based uplink transmission and non-codebook based uplink transmission) also helps to reduce hardware complexity and cost. Without conflict, embodiments and features in embodiments in a first node of the present application may be applied to a second node and vice versa. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

The application discloses a method in a first node used for wireless communication, characterized by comprising:

receiving a first signaling;

transmitting a first signal;

wherein the first signaling is used to determine scheduling information of the first signal; the first signaling comprises a first field comprising at least one binary bit, the first field comprising a number of binary bits equal to a first integer; a first rank number is used to determine a first codebook, the first codebook comprising at least one codeword of a first type, the first codebook comprising a number of codewords of the first type used to determine a first candidate integer; a second rank number is used to determine a second codebook, the second codebook including at least one codeword of a second type, the second codebook including a number of codewords of the second type used to determine a second candidate integer; the first candidate integer and the second candidate integer are used together to determine the first integer; the first rank number is configurable; the second rank is default or configurable and the second rank and the first rank are configured by different higher layer parameters, respectively; the first field in the first signaling is used to determine a precoding of the first signal.

As an embodiment, the problem to be solved by the present application includes: in codebook-based uplink transmission, how to reduce the additional signaling overhead on the basis of ensuring the multi-TRP/panel transmission gain. The method considers that multiple TRP/panel transmission brings additional limitation to the layer number of one uplink transmission, and reduces signaling overhead by utilizing the limitation.

As an embodiment, the characteristics of the above method include: the first rank number and the second rank number are maximum number of layers which can be supported by one-time uplink transmission when single-TRP/panel transmission and multi-TRP/panel transmission are carried out respectively. The first candidate integer and the second candidate integer are respectively the number of bits required for indicating a precoding matrix when single TRP/panel transmission and multi TRP/panel transmission. The first candidate integer is determined by the first rank and the second candidate integer is determined by the second rank. The first candidate integer and the second candidate integer are used together to determine a number of bits required in scheduling signaling to indicate a field of a precoding matrix.

As an example, the benefits of the above method include: in the codebook-based uplink transmission, the additional signaling overhead is reduced on the basis of ensuring the multi-TRP/panel transmission gain.

According to one aspect of the present application, the first signal comprises a first sub-signal; third information is used to determine whether the first signal includes a second sub-signal; the second sub-signal and the first sub-signal correspond to different spatial relationships; the first field in the first signaling indicates a first codeword from a first codebook of targets, the first codeword being used to determine a first matrix used for precoding of the first sub-signal; the third information is used to determine the first codebook-of-target.

According to one aspect of the present application, any first-type codeword in the first codebook indicates one first-type index, and any second-type codeword in the second codebook indicates two first-type indices; one of the first class indices indicates one matrix.

According to an aspect of the application, characterized in that the second rank number is used for determining a third codebook, the third codebook comprises at least one codeword of a third type, the number of codewords of the second type comprised by the second codebook and the number of codewords of the third type comprised by the third codebook are jointly used for determining the second candidate integer; any first-class codeword in the first codebook indicates a first-class index, any second-class codeword in the second codebook indicates a first-class index, and any third-class codeword in the third codebook indicates a first-class index; one of the first type indices indicates one matrix.

According to one aspect of the present application, the first codebook is one of K1 candidate codebooks, the second codebook is one of K2 candidate codebooks, and K1 and K2 are positive integers greater than 1, respectively; the K1 candidate codebooks respectively correspond to K1 rank arrays, and the K2 candidate codebooks respectively correspond to K2 rank arrays; the first rank is used to determine the first codebook from the K1 candidate codebooks, the second rank is used to determine the second codebook from the K2 candidate codebooks; a rank array comprises at least one rank number.

According to an aspect of the application, characterized in that the first reference rank is a positive integer not greater than said second rank; the first matrix set consists of matrixes with all columns equal to the first reference rank number in the matrixes indicated by the first type of code words in the first codebook; any second type codeword in the second codebook indicates two first type indexes and a second matrix set consists of matrices in which all the numbers of columns in a first matrix indicated by the second type codeword in the second codebook are equal to the first reference rank number, or any second type codeword in the second codebook indicates two first type indexes and a second matrix set consists of matrices in which all the numbers of columns in a second matrix indicated by the second type codeword in the second codebook are equal to the first reference rank number, or any second type codeword in the second codebook indicates one first type index and a second matrix set consists of matrices in which all the numbers of columns in a matrix indicated by the second type codeword in the second codebook are equal to the first reference rank number; the second set of matrices is a subset of the first set of matrices, and there is one matrix in the first set of matrices that does not belong to the second set of matrices.

As an embodiment, the features of the above method include: in multi-TRP/panel transmission, the precoding matrix available to each TRP/panel is a proper subset of the precoding matrix available to each TRP in single TRP/panel transmission.

As an example, the benefits of the above method include: when the uplink transmission is switched between multi-TRP/panel transmission and single-TRP/panel transmission, the bit number of a domain used for precoding matrix indication in the scheduling signaling is kept unchanged, and the complexity of UE blind detection is reduced.

As an example, the benefits of the above method include: the bit number used for indicating the precoding matrix in the scheduling signaling is reduced, and the better balance between the multi-antenna gain and the signaling overhead is achieved.

According to one aspect of the application, the method is characterized by comprising the following steps:

receiving a first information block;

wherein the first information block is used to determine the first rank number.

According to one aspect of the application, the first node is a user equipment.

According to an aspect of the application, it is characterized in that the first node is a relay node.

The application discloses a method in a second node used for wireless communication, characterized by comprising:

sending a first signaling;

receiving a first signal;

wherein the first signaling is used to determine scheduling information of the first signal; the first signaling comprises a first field comprising at least one binary bit, the first field comprising a number of binary bits equal to a first integer; a first rank number is used to determine a first codebook, the first codebook comprising at least one codeword of a first type, the first codebook comprising a number of codewords of the first type used to determine a first candidate integer; a second rank is used to determine a second codebook, the second codebook comprising at least one codeword of a second type, the second codebook comprising a number of codewords of the second type used to determine a second candidate integer; the first candidate integer and the second candidate integer are used together to determine the first integer; the first rank number is configurable; the second rank is default or configurable and the second rank and the first rank are configured by different higher layer parameters, respectively; the first field in the first signaling is used to determine a precoding of the first signal.

According to an aspect of the application, characterized in that the second rank number is used for determining a third codebook, the third codebook comprises at least one codeword of a third type, the number of codewords of the second type comprised by the second codebook and the number of codewords of the third type comprised by the third codebook are jointly used for determining the second candidate integer; any first-class codeword in the first codebook indicates a first-class index, any second-class codeword in the second codebook indicates a first-class index, and any third-class codeword in the third codebook indicates a first-class index; one of the first class indices indicates one matrix.

According to an aspect of the application, characterized in that the first reference rank is a positive integer not greater than said second rank; the first matrix set consists of matrixes with all columns equal to the first reference rank number in the matrixes indicated by the first type of code words in the first codebook; any second-type codeword in the second codebook indicates two first-type indexes and a second matrix set is composed of matrices in which all the numbers of columns in a first matrix indicated by the second-type codeword in the second codebook are equal to the first reference rank number, or any second-type codeword in the second codebook indicates two first-type indexes and a second matrix set is composed of matrices in which all the numbers of columns in a second matrix indicated by the second-type codeword in the second codebook are equal to the first reference rank number, or any second-type codeword in the second codebook indicates one first-type index and a second matrix set is composed of matrices in which all the numbers of columns in a matrix indicated by the second-type codeword in the second codebook are equal to the first reference rank number; the second set of matrices is a subset of the first set of matrices, and there is one matrix in the first set of matrices that does not belong to the second set of matrices.

transmitting a first information block;

wherein the first information block is used to determine the first rank number.

According to an aspect of the application, it is characterized in that the second node is a base station.

According to one aspect of the application, the second node is a user equipment.

According to an aspect of the application, it is characterized in that the second node is a relay node.

The application discloses a first node device used for wireless communication, characterized by comprising:

a first receiver receiving a first signaling;

a first transmitter that transmits a first signal;

The present application discloses a second node device used for wireless communication, comprising:

a second transmitter that transmits the first signaling;

a second receiver receiving the first signal;

As an example, compared with the conventional scheme, the method has the following advantages:

in codebook-based uplink transmission, additional signaling overhead is reduced on the basis of ensuring multiple TRP/panel transmission gains;

when the uplink transmission is switched between multi-TRP/panel transmission and single-TRP/panel transmission, the bit number of a domain used for indicating a precoding matrix in the scheduling signaling is kept unchanged, and the complexity of blind detection of the UE is reduced.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof with reference to the accompanying drawings in which:

fig. 1 shows a flow chart of a first signaling and a first signal according to an embodiment of the application;

FIG. 2 shows a schematic diagram of a network architecture according to an embodiment of the present application;

figure 3 shows a schematic diagram of an embodiment of a radio protocol architecture for the user plane and the control plane according to an embodiment of the present application;

fig. 4 shows a schematic diagram of a first communication device and a second communication device according to an embodiment of the application;

FIG. 5 shows a flow diagram of a transmission according to an embodiment of the present application;

FIG. 6 shows a schematic diagram of a first signal according to an embodiment of the present application;

FIG. 7 shows a schematic diagram of a first signal according to an embodiment of the present application;

FIG. 8 shows a schematic diagram of a first signal according to an embodiment of the present application;

fig. 9 shows a schematic diagram in which third information is used to determine whether a first signal includes a second sub-signal according to an embodiment of the present application;

FIG. 10 shows a schematic diagram of a first type of codeword and a second type of codeword according to an embodiment of the present application;

FIG. 11 shows a schematic diagram of a first type of codeword, a second type of codeword and a third type of codeword according to an embodiment of the present application;

FIG. 12 shows a schematic of K1 candidate codebooks, K1 rank arrays, K2 candidate codebooks, and K2 rank arrays according to one embodiment of the present application;

FIG. 13 illustrates a diagram where third information is used to determine a first target codebook according to an embodiment of the present application;

FIG. 14 shows a schematic diagram of a first matrix being used for precoding of a first sub-signal according to an embodiment of the present application;

FIG. 15 illustrates a second target codebook and a second codeword according to an embodiment of the present application;

FIG. 16 shows a schematic diagram of a first codeword being used to determine a first matrix according to one embodiment of the present application;

FIG. 17 shows a schematic diagram of a first matrix according to an embodiment of the present application;

FIG. 18 shows a schematic diagram of a first set of matrices and a second set of matrices, according to an embodiment of the present application;

FIG. 19 shows a schematic diagram of a first information block according to an embodiment of the present application;

FIG. 20 shows a block diagram of a processing apparatus for use in a first node device according to an embodiment of the present application;

fig. 21 shows a block diagram of a processing arrangement for a device in a second node according to an embodiment of the application.

Detailed Description

The technical solutions of the present application will be further described in detail with reference to the accompanying drawings, and it should be noted that the embodiments and features of the embodiments in the present application can be arbitrarily combined with each other without conflict.

Example 1

Embodiment 1 illustrates a first signaling and a flow chart of a first signal according to an embodiment of the present application, as shown in fig. 1. In 100 shown in fig. 1, each block represents a step. In particular, the order of steps in the blocks does not represent a specific temporal sequence between the various steps.

In embodiment 1, the first node in the present application receives a first signaling in step 101; a first signal is transmitted in step 102. Wherein the first signaling is used to determine scheduling information of the first signal; the first signaling comprises a first field comprising at least one binary bit, the first field comprising a number of binary bits equal to a first integer; a first rank number is used to determine a first codebook, the first codebook comprising at least one codeword of a first type, the first codebook comprising a number of codewords of the first type used to determine a first candidate integer; a second rank is used to determine a second codebook, the second codebook comprising at least one codeword of a second type, the second codebook comprising a number of codewords of the second type used to determine a second candidate integer; the first candidate integer and the second candidate integer are used together to determine the first integer; the first rank number is configurable; the second rank is default or configurable and the second rank and the first rank are configured by different higher layer parameters, respectively; the first field in the first signaling is used to determine a precoding of the first signal.

As one embodiment, the first signaling includes physical layer signaling.

As one embodiment, the first signaling comprises dynamic signaling.

As one embodiment, the first signaling includes layer 1(L1) signaling.

As an embodiment, the first signaling comprises layer 1(L1) control signaling.

As an embodiment, the first signaling includes DCI (Downlink control information).

For one embodiment, the first signaling includes one or more fields (fields) in one DCI.

As an embodiment, the first signaling includes one or more fields (fields) in a SCI (Sidelink Control Information).

As an embodiment, the first signaling includes DCI for an UpLink Grant (UpLink Grant).

As an embodiment, the first signaling includes DCI for Uplink configuration Grant Type 2(Configured Uplink Grant Type 2) activation.

As an embodiment, a signaling format (format) of the first signaling belongs to a first format set, and the first format set includes DCI format0_ 1.

As an embodiment, the first format set includes only DCI format0_ 1.

As one embodiment, the first format set includes DCI format0_ 2.

As an embodiment, the first signaling comprises higher layer (higher layer) signaling.

As an embodiment, the first signaling includes RRC (Radio Resource Control) signaling.

As an embodiment, the first signaling includes MAC CE (Medium Access Control layer Control Element) signaling.

For one embodiment, the first signal comprises a baseband signal.

As one embodiment, the first signal comprises a wireless signal.

For one embodiment, the first signal comprises a radio frequency signal.

As one embodiment, the first signal carries a first block of bits.

As an embodiment, the first bit Block includes one of a Transport Block (TB), a Code Block (CB) or a Code Block Group (CBG).

As an embodiment, the meaning that a signal carries a block of bits includes: the one signal includes an output of bits in the one bit Block after sequentially passing through CRC (Cyclic Redundancy Check) Attachment (Attachment), Code Block Segmentation (Code Block Segmentation), Code Block CRC Attachment, Channel Coding (Channel Coding), Rate Matching (Rate Matching), Concatenation (Concatenation), Scrambling (Scrambling), Modulation (Modulation), Layer Mapping (Layer Mapping), transform Precoding (Precoding), Virtual Resource Block Mapping (Mapping to Virtual Resource Blocks), Virtual to Physical Resource Block Mapping (Virtual Physical Resource Blocks), multi-carrier symbol Generation (Generation), Modulation and Upconversion (Modulation and Upconversion).

As an embodiment, the meaning that a signal carries a block of bits includes: the one signal comprises the output of the bits in the one bit block after CRC attachment, channel coding, rate matching, modulation, layer mapping, precoding, virtual resource block mapping, virtual-to-physical resource block mapping, multi-carrier symbol generation, modulation and up-conversion in sequence.

As an embodiment, the meaning that a signal carries a block of bits includes: the one bit block is used to generate the one signal.

As an embodiment, the scheduling information includes one or more of time domain resources, frequency domain resources, MCS (Modulation and Coding Scheme), DMRS (DeModulation Reference Signals) ports (ports), HARQ (Hybrid Automatic Repeat reQuest) process numbers (process numbers), RV (Redundancy Version) or NDI (New Data Indicator).

As one embodiment, the first signaling includes the scheduling information of the first signal.

As one embodiment, the first signaling indicates the scheduling information of the first signal.

As one embodiment, the first signal includes a codebook based (codebook based) upstream transmission.

As one embodiment, the first signal is based on codebook (codebook based) uplink transmission.

As an embodiment, the first node is configured with a higher layer (higher layer) parameter txConfig set to 'codebook'.

As one embodiment, the first field includes information in one or more fields (filed) in one DCI.

For one embodiment, the first field includes one or more fields in one DCI.

For one embodiment, the first field includes one field in one DCI.

As an embodiment, the first field is one field in one DCI.

For one embodiment, the first field includes two fields in one DCI.

As one embodiment, the first field includes part or all of information of Precoding information and number of layers fields.

As an embodiment, the first field is a Precoding information and number of layers field.

As an example, the Precoding information and number of layers fields are defined in 3GPP TS38.212, section 7.3.

As an embodiment, the first field in the first signaling is used to determine a precoding matrix for the first signal.

As an embodiment, the first field in the first signaling indicates a precoding matrix of the first signal.

As an embodiment, the first integer is a positive integer.

As an embodiment, the first integer is greater than 1.

As an example, the first integer is equal to 1.

As one embodiment, the first integer is a positive integer no greater than 6.

As one embodiment, the first integer is a positive integer no greater than 12.

As one embodiment, the first integer is a positive integer no greater than 24.

As an embodiment, the rank number refers to rank.

As an example, the rank number refers to a layer number.

As an embodiment, the first rank number is a positive integer.

As an embodiment, the first rank number is a positive integer no greater than 4.

As an embodiment, the first rank number is a positive integer no greater than 6.

As an embodiment, the first rank number is a positive integer no greater than 8.

As one embodiment, the first rank number is maxRank.

As an embodiment, the first rank number is maxRank or maxrankforddci-Format 0-2.

As an embodiment, the first rank number is a maximum layer (layer) number that the first node can transmit on a PUSCH (Physical Uplink Shared CHannel).

As an embodiment, the meaning that the sentence that the first rank number is configurable includes: the first rank number is configured by higher layer (higher layer) signaling.

As an embodiment, the meaning that the sentence that the first rank is configurable includes: the first rank indicator is configured by RRC signaling.

As an embodiment, the meaning that the sentence that the first rank number is configurable includes: the first rank number is configured by a field in an IE (Information Element).

As an embodiment, the meaning that the sentence that the first rank number is configurable includes: the first rank number is configured by MAC CE signaling.

As an embodiment, the meaning that the sentence that the first rank number is configurable includes: the first rank number is configured by layer 1(L1) signaling.

As an embodiment, the first rank number is configured by a higher layer (higher layer) parameter maxRank.

As an embodiment, the first rank number is configured by a higher layer parameter maxRank or maxrankforddci-Format 0-2.

As one embodiment, the first rank number is configured by a PUSCH-Config IE.

As an embodiment, the first rank number is configured by a maxRank field (field) in a PUSCH-Config IE.

As an embodiment, the first rank number is configured by a maxRank field or a maxrankforddci-Format 0-2-r16 field in the PUSCH-Config IE.

As an embodiment, the name of the higher layer parameter configuring the first rank number includes maxRank.

As an embodiment, the first rank number is related to a signaling format (format) of the first signaling.

As an embodiment, a signaling format of the first signaling is used for determining the first rank number.

As an embodiment, when the signaling format of the first signaling is DCI format0_ 1, the first rank number is configured by a higher layer parameter maxRank; when the signaling Format of the first signaling is DCI Format0_2, the first rank number is configured by a higher-layer parameter maxrankford DCI-Format 0-2.

As an embodiment, the second rank is a default.

As an example, the meaning that the sentence that the second rank number is default includes: the second rank number need not be configured.

As an example, the meaning that the sentence that the second rank number is default includes: the second rank number does not require higher layer signaling configuration.

As an example, the meaning that the sentence that the second rank number is default includes: the second rank number does not require RRC signaling configuration.

As an example, the meaning that the sentence that the second rank number is default includes: the second rank number does not require MAC CE signaling configuration.

As an example, the meaning that the sentence that the second rank number is default includes: the second rank number does not require layer 1(L1) signaling configuration.

As an example, the meaning that the sentence that the second rank number is default includes: the value of the second rank number is fixed.

As an example, the meaning that the sentence that the second rank number is default includes: the value of the second rank number is predefined.

As an embodiment, the second rank number is a positive integer.

As an embodiment, the value of the second rank number is fixed to 1.

As an embodiment, the value of the second rank number is fixed to 2.

As an embodiment, the second rank is configurable and the first rank and the second rank are configured by two different higher layer parameters, respectively.

As an embodiment, the first rank and the second rank are respectively configured by different domains of one IE.

As an embodiment, configuring the higher layer parameters of the first rank and configuring the higher layer parameters of the second rank respectively comprise information in different domains of one IE.

As an embodiment, the first rank number and the second rank number are respectively configured by different IEs.

As an embodiment, configuring the higher layer parameters of the first rank and configuring the higher layer parameters of the second rank respectively comprise information in fields in different IEs.

As an embodiment, the value of the second rank number is independent of the value of the first rank number.

As an embodiment, the second rank is greater than the first rank.

As an embodiment, the second rank number is equal to the first rank number.

As an embodiment, the second rank is smaller than the first rank.

As an embodiment, a signaling format of the first signaling is used for determining the second rank number.

As an embodiment, if the signaling format of the first signaling belongs to the first format subset, the second rank number is equal to a fourth integer; the second rank number is equal to the fifth integer if the signaling format of the first signaling belongs to a second subset of formats; the first format subset and the second format subset respectively comprise at least one signaling format, and no signaling format belongs to both the first format subset and the second format subset.

As an embodiment, a number of layers (layers) of the first signal is not greater than a second integer, at least one of the first rank number and the second rank number being used to determine the second integer.

For one embodiment, the second integer is a maximum number of layers that the first signal can support.

As an embodiment, the second integer is one of the first rank number and the second rank number.

As an embodiment, the third rank is equal to the minimum of the first rank and the second rank.

As an embodiment, the second integer is one of the first rank number and the third rank number.

As an embodiment, whether the first signal comprises the second sub-signal is used to determine the second integer from the first rank and the second rank.

As an embodiment, if the first signal comprises the second sub-signal, the second integer is equal to the second rank number; the second integer is equal to the first rank number if the first signal only includes the first sub-signal.

As an embodiment, whether the first signal comprises the second sub-signal is used to determine the second integer from the first rank and the third rank.

As an embodiment, if the first signal includes the second sub-signal, the second integer is equal to the third rank number; the second integer is equal to the first rank number if the first signal only comprises the first sub-signal.

As an embodiment, the first integer is independent of a signaling format of the first signaling.

As an embodiment, the first integer relates to a signaling format of the first signaling.

As an embodiment, the first codebook comprises a number of codewords of the first type equal to 1.

As an embodiment, the first codebook includes a number of codewords of the first type greater than 1.

As an embodiment, the first codebook comprises a number of codewords of the first type not greater than 64.

As an embodiment, the first codebook includes a number of codewords of the first type not greater than 256.

As an embodiment, one of said first type codewords indicates a number of layers (layer), and one layer number is a positive integer.

As an embodiment, one of the first type codewords comprises a layer number, and one layer number is a positive integer.

As an embodiment, the second codebook comprises a number of codewords of the second type equal to 1.

As an embodiment, the second codebook comprises a number of codewords of the second type greater than 1.

As an embodiment, the second codebook comprises a number of codewords of the second type not greater than 64.

As an embodiment, the second codebook comprises a number of codewords of the second type not greater than 4096.

As an embodiment, one of said second type of code words indicates a number of layers (layer), a number of layers being a positive integer.

As an embodiment, one of said second type of code words comprises a layer number, a layer number being a positive integer.

For one embodiment, the first type of codeword is the second type of codeword.

For one embodiment, the first type of codeword is different from the second type of codeword.

As one embodiment, the first integer is equal to a maximum of the first candidate integer and the second candidate integer.

As one embodiment, the first integer is equal to a minimum of the first candidate integer and the second candidate integer.

For one embodiment, the first integer is equal to a sum of the first candidate integer and the second candidate integer.

As one embodiment, the first integer is one of the first candidate integer and the second candidate integer.

As an embodiment, a signaling format of the first signaling is used to determine the first integer from the first candidate integer and the second candidate integer.

As an embodiment, if the signaling format of the first signaling belongs to a first subset of formats, the first integer is the first candidate integer; the first integer is the second candidate integer if the signaling format of the first signaling belongs to a second subset of formats; the first format subset and the second format subset respectively comprise at least one signaling format, and no signaling format belongs to both the first format subset and the second format subset.

As an embodiment, the time-frequency resources occupied by the first signaling are used to determine the first integer from the first candidate integer and the second candidate integer.

As an embodiment, if the time-frequency resource occupied by the first signaling belongs to a first resource set, the first integer is the first candidate integer; and if the time-frequency resource occupied by the first signaling belongs to a second resource set, the first integer is the second candidate integer.

As an embodiment, the first SET of resources and the second SET of resources respectively include two different CORESET (COntrol REsource SETs).

As an embodiment, the first set of resources and the second set of resources each comprise two different sets of search spaces (search space sets).

Example 2

Embodiment 2 illustrates a schematic diagram of a network architecture according to an embodiment of the present application, as shown in fig. 2.

Fig. 2 illustrates a network architecture 200 of LTE (Long-Term Evolution), LTE-a (Long-Term Evolution Advanced) and future 5G systems. The network architecture 200 of LTE, LTE-a and future 5G systems is referred to as EPS (Evolved Packet System) 200. The 5G NR or LTE network architecture 200 may be referred to as a 5GS (5G System)/EPS (Evolved Packet System) 200 or some other suitable terminology. The 5GS/EPS200 may include one or more UEs (User Equipment) 201, one UE241 in Sidelink (Sidelink) communication with the UE201, an NG-RAN (next generation radio access network) 202, a 5GC (5G Core network )/EPC (Evolved Packet Core) 210, HSS (Home Subscriber Server )/UDM (Unified Data Management) 220, and an internet service 230. The 5GS/EPS200 may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown in fig. 2, the 5GS/EPS200 provides packet switched services, however those skilled in the art will readily appreciate that the various concepts presented throughout this application may be extended to networks providing circuit switched services. The NG-RAN202 includes NR (New Radio ) node bs (gnbs) 203 and other gnbs 204. The gNB203 provides user and control plane protocol termination towards the UE 201. The gnbs 203 may be connected to other gnbs 204 via an Xn interface (e.g., backhaul). The gNB203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a TRP (point of transmission reception), or some other suitable terminology. The gNB203 provides the UE201 with an access point to the 5GC/EPC 210. Examples of the UE201 include a cellular phone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a Personal Digital Assistant (PDA), a satellite radio, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a gaming console, a drone, an aircraft, a narrowband physical network device, a machine type communication device, a land vehicle, an automobile, a wearable device, or any other similar functioning device. Those skilled in the art may also refer to UE201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology. The gNB203 is connected to the 5GC/EPC210 through an S1/NG interface. The 5GC/EPC210 includes MME (Mobility Management Entity)/AMF (Authentication Management domain)/SMF (Session Management Function) 211, other MME/AMF/SMF214, S-GW (serving Gateway)/UPF (User Plane Function) 212, and P-GW (Packet data Network Gateway)/UPF 213. The MME/AMF/SMF211 is a control node that handles signaling between the UE201 and the 5GC/EPC 210. In general, MME/AMF/SMF211 provides bearer and connection management. All user IP (Internet protocol) packets are transported through the S-GW/UPF212, which S-GW/UPF212 itself is connected to the P-GW/UPF 213. The P-GW provides UE IP address allocation as well as other functions. The P-GW/UPF213 is connected to the internet service 230. The internet service 230 includes an operator-corresponding internet protocol service, and may specifically include internet, intranet, IMS (IP Multimedia Subsystem) and Packet switching (Packet switching) services.

As an embodiment, the first node in the present application includes the UE 201.

As an embodiment, the second node in this application includes the gNB 203.

For one embodiment, the wireless link between the UE201 and the gNB203 is a cellular network link.

As an embodiment, the sender of the first signaling in this application includes the gNB 203.

As an embodiment, the receiver of the first signaling in this application includes the UE 201.

As an embodiment, the sender of the first signal in the present application includes the UE 201.

As an embodiment, the receiver of the first signal in this application includes the gNB 203.

Example 3

Embodiment 3 illustrates a schematic diagram of an embodiment of a radio protocol architecture for the user plane and the control plane according to an embodiment of the present application, as shown in fig. 3.

Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture for the user plane and the control plane according to the present application, as shown in fig. 3. Fig. 3 is a schematic diagram illustrating an embodiment of radio protocol architecture for the user plane 350 and the control plane 300, fig. 3 showing the radio protocol architecture for the control plane 300 between a first communication node device (UE, RSU in gbb or V2X) and a second communication node device (gbb, RSU in UE or V2X), or between two UEs, in three layers: layer 1, layer 2 and layer 3. Layer 1(L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to herein as PHY 301. Layer 2(L2 layer) 305 is above the PHY301 and is responsible for the link between the first communication node device and the second communication node device, or between two UEs. The L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the second communication node device. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by ciphering data packets and provides handoff support between second communication node devices to the first communication node device. The RLC sublayer 303 provides segmentation and reassembly of upper layer packets, retransmission of lost packets, and reordering of packets to compensate for out-of-order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in one cell between the first communication node devices. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in layer 3 (layer L3) in the Control plane 300 is responsible for obtaining Radio resources (i.e. Radio bearers) and configuring the lower layers using RRC signaling between the second communication node device and the first communication node device. The radio protocol architecture of the user plane 350 comprises layer 1(L1 layer) and layer 2(L2 layer), the radio protocol architecture in the user plane 350 for the first and second communication node devices being substantially the same for the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355 and the MAC sublayer 352 in the L2 layer 355 as the corresponding layers and sublayers in the control plane 300, but the PDCP sublayer 354 also provides header compression for upper layer packets to reduce radio transmission overhead. The L2 layer 355 in the user plane 350 further includes an SDAP (Service Data Adaptation Protocol) sublayer 356, and the SDAP sublayer 356 is responsible for mapping between QoS streams and Data Radio Bearers (DRBs) to support diversity of services. Although not shown, the first communication node device may have several upper layers above the L2 layer 355, including a network layer (e.g., IP layer) that terminates at the P-GW on the network side and an application layer that terminates at the other end of the connection (e.g., far end UE, server, etc.).

As an example, the wireless protocol architecture in fig. 3 is applicable to the first node in this application.

As an example, the radio protocol architecture in fig. 3 is applicable to the second node in this application.

For one embodiment, the first signaling is generated from the PHY301 or the PHY 351.

For one embodiment, the first signaling is generated in the MAC sublayer 302 or the MAC sublayer 352.

For one embodiment, the first signal is generated from the PHY301, or the PHY 351.

As an embodiment, the first information block is generated in the RRC sublayer 306.

Example 4

Embodiment 4 illustrates a schematic diagram of a first communication device and a second communication device according to an embodiment of the present application, as shown in fig. 4. Fig. 4 is a block diagram of a first communication device 410 and a second communication device 450 communicating with each other in an access network.

The first communications device 410 includes a controller/processor 475, a memory 476, a receive processor 470, a transmit processor 416, a multiple antenna receive processor 472, a multiple antenna transmit processor 471, a transmitter/receiver 418, and an antenna 420.

The second communication device 450 includes a controller/processor 459, a memory 460, a data source 467, a transmit processor 468, a receive processor 456, a multiple antenna transmit processor 457, a multiple antenna receive processor 458, a transmitter/receiver 454, and an antenna 452.

In the transmission from the first communication device 410 to the second communication device 450, at the first communication device 410, upper layer data packets from the core network are provided to the controller/processor 475. The controller/processor 475 implements the functionality of layer L2. In the DL, the controller/processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the second communication device 450 based on various priority metrics. The controller/processor 475 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the second communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the L1 layer (i.e., the physical layer). The transmit processor 416 implements coding and interleaving to facilitate Forward Error Correction (FEC) at the second communication device 450, as well as constellation mapping based on various modulation schemes (e.g., Binary Phase Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK), M-phase shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM)). The multi-antenna transmit processor 471 performs digital spatial precoding, including codebook-based precoding and non-codebook based precoding, and beamforming processing on the coded and modulated symbols to generate one or more parallel streams. Transmit processor 416 then maps each parallel stream to subcarriers, multiplexes the modulated symbols with reference signals (e.g., pilots) in the time and/or frequency domain, and then uses an Inverse Fast Fourier Transform (IFFT) to generate the physical channels carrying the time-domain multicarrier symbol streams. The multi-antenna transmit processor 471 then performs transmit analog precoding/beamforming operations on the time domain multi-carrier symbol stream. Each transmitter 418 converts the baseband multicarrier symbol stream provided by the multi-antenna transmit processor 471 into a radio frequency stream that is then provided to a different antenna 420.

In a transmission from the first communications device 410 to the second communications device 450, at the second communications device 450, each receiver 454 receives a signal through its respective antenna 452. Each receiver 454 recovers information modulated onto a radio frequency carrier and converts the radio frequency stream into a baseband multi-carrier symbol stream that is provided to a receive processor 456. Receive processor 456 and multi-antenna receive processor 458 implement the various signal processing functions of the L1 layer. A multi-antenna receive processor 458 performs receive analog precoding/beamforming operations on the baseband multi-carrier symbol stream from the receiver 454. Receive processor 456 converts the baseband multicarrier symbol stream after the receive analog precoding/beamforming operation from the time domain to the frequency domain using a Fast Fourier Transform (FFT). In the frequency domain, the physical layer data signals and the reference signals to be used for channel estimation are demultiplexed by the receive processor 456, and the data signals are subjected to multi-antenna detection in the multi-antenna receive processor 458 to recover any parallel streams destined for the second communication device 450. The symbols on each parallel stream are demodulated and recovered in a receive processor 456 and soft decisions are generated. The receive processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals transmitted by the first communication device 410 on the physical channel. The upper layer data and control signals are then provided to a controller/processor 459. The controller/processor 459 implements the functionality of the L2 layer. The controller/processor 459 may be associated with a memory 460 that stores program codes and data. Memory 460 may be referred to as a computer-readable medium. In the DL, the controller/processor 459 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover upper layer data packets from the core network. The upper layer packet is then provided to all protocol layers above the L2 layer. Various control signals may also be provided to L3 for L3 processing. The controller/processor 459 is also responsible for error detection using an Acknowledgement (ACK) and/or Negative Acknowledgement (NACK) protocol to support HARQ operations.

In a transmission from the second communications device 450 to the first communications device 410, a data source 467 is used at the second communications device 450 to provide upper layer data packets to a controller/processor 459. Data source 467 represents all protocol layers above the L2 layer. Similar to the transmit function at the first communications apparatus 410 described in the DL, the controller/processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on the radio resource allocation of the first communications apparatus 410, implementing L2 layer functions for the user plane and the control plane. The controller/processor 459 is also responsible for HARQ operations, retransmission of lost packets, and signaling to said first communications device 410. A transmit processor 468 performs modulation mapping, channel coding, and digital multi-antenna spatial precoding by a multi-antenna transmit processor 457 including codebook-based precoding and non-codebook based precoding, and beamforming, and the resulting parallel streams are then modulated by the transmit processor 468 into multi-carrier/single-carrier symbol streams, subjected to analog precoding/beamforming in the multi-antenna transmit processor 457, and provided to different antennas 452 via a transmitter 454. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a radio frequency symbol stream and provides the radio frequency symbol stream to the antenna 452.

In a transmission from the second communication device 450 to the first communication device 410, the functionality at the first communication device 410 is similar to the receiving functionality at the second communication device 450 described in the transmission from the first communication device 410 to the second communication device 450. Each receiver 418 receives an rf signal through its respective antenna 420, converts the received rf signal to a baseband signal, and provides the baseband signal to a multi-antenna receive processor 472 and a receive processor 470. The receive processor 470 and the multiple antenna receive processor 472 collectively implement the functionality of the L1 layer. Controller/processor 475 implements the L2 layer functions. The controller/processor 475 can be associated with a memory 476 that stores program codes and data. Memory 476 may be referred to as a computer-readable medium. The controller/processor 475 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover upper layer packets from the second communication device 450. Upper layer data packets from the controller/processor 475 may be provided to a core network. Controller/processor 475 is also responsible for error detection using the ACK and/or NACK protocol to support HARQ operations.

As an embodiment, the second communication device 450 includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The second communication device 450 apparatus at least: receiving the first signaling in the application; the first signal in this application is transmitted.

As an embodiment, the second communication device 450 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: receiving the first signaling in the application; the first signal in this application is transmitted.

As an embodiment, the first communication device 410 includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The first communication device 410 means at least: sending the first signaling in the application; the first signal in this application is received.

As an embodiment, the first communication device 410 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: sending the first signaling in the application; the first signal in this application is received.

As an embodiment, the first node in this application comprises the second communication device 450.

As an embodiment, the second node in this application comprises the first communication device 410.

As an example, at least one of { the antenna 452, the receiver 454, the receive processor 456, the multi-antenna receive processor 458, the controller/processor 459, the memory 460, the data source 467} is used to receive the first signaling; at least one of the antenna 420, the transmitter 418, the transmit processor 416, the multi-antenna transmit processor 471, the controller/processor 475, the memory 476 is used to send the first signaling.

As an embodiment, at least one of { the antenna 420, the receiver 418, the receive processor 470, the multi-antenna receive processor 472, the controller/processor 475, the memory 476} is used to receive the first signal; { at least one of the antenna 452, the transmitter 454, the transmission processor 468, the multi-antenna transmission processor 457, the controller/processor 459, the memory 460} is used for transmitting the first signal.

As one example, at least one of the antenna 452, the receiver 454, the receive processor 456, the multi-antenna receive processor 458, the controller/processor 459, the memory 460, the data source 467 is used to receive the first information block; at least one of the antenna 420, the transmitter 418, the transmit processor 416, the multi-antenna transmit processor 471, the controller/processor 475, the memory 476 is used to transmit the first information block.

Example 5

Embodiment 5 illustrates a flow chart of wireless transmission according to an embodiment of the present application, as shown in fig. 5. In fig. 5, the second node U1 and the first node U2 are communication nodes that transmit over an air interface. In fig. 5, the step in block F51 is optional.

For the second node U1, a first information block is sent in step S5101; transmitting a first signaling in step S511; a first signal is received in step S512.

For the first node U2, a first information block is received in step S5201; receiving a first signaling in step S521; the first signal is transmitted in step S522.

In embodiment 5, the first signaling is used by the first node U2 to determine scheduling information of the first signal; the first signaling comprises a first field comprising at least one binary bit, the first field comprising a number of binary bits equal to a first integer; a first rank is used by the first node U2 to determine a first codebook, the first codebook comprising at least one codeword of a first type, the first codebook comprising a number of codewords of the first type used by the first node U2 to determine a first candidate integer; a second rank is used by the first node U2 to determine a second codebook, the second codebook comprising at least one codeword of a second type, the second codebook comprising a number of codewords of the second type used by the first node U2 to determine a second candidate integer; the first candidate integer and the second candidate integer are collectively used by the first node U2 to determine the first integer; the first rank number is configurable; the second rank is default or configurable and the second rank and the first rank are configured by different higher layer parameters, respectively; the first field in the first signaling is used by the first node U2 to determine a precoding of the first signal.

As an example, the first node U2 is the first node in this application.

As an example, the second node U1 is the second node in this application.

For one embodiment, the air interface between the second node U1 and the first node U2 comprises a wireless interface between a base station device and a user equipment.

For one embodiment, the air interface between the second node U1 and the first node U2 comprises a wireless interface between user equipment and user equipment.

For one embodiment, the second node U1 is a serving cell maintenance base station for the first node U2.

As an embodiment, the first rank is used by the second node U1 to determine the first codebook, which includes a number of codewords of a first type used by the second node U1 to determine the first candidate integer.

As an embodiment, the second rank is used by the second node U1 to determine the second codebook, which includes a number of codewords of a second type used by the second node U1 to determine the second candidate integer;

for one embodiment, the first candidate integer and the second candidate integer are collectively used by the second node U1 to determine the first integer.

As an embodiment, the first signaling is transmitted on a downlink physical layer control channel (i.e. a downlink channel that can only be used to carry physical layer signaling).

As an embodiment, the first signaling is transmitted on a PDCCH (Physical Downlink Control Channel).

As an embodiment, the first signaling is transmitted on a PSCCH (Physical Sidelink Control Channel).

As an embodiment, the first signaling is transmitted on a downlink physical layer data channel (i.e., a downlink channel that can be used to carry physical layer data).

As an embodiment, the first signaling is transmitted on a PDSCH (Physical Downlink Shared CHannel).

As an embodiment, the first signaling is transmitted on a psch (Physical Sidelink Shared Channel).

As an example, the first signal is transmitted on an uplink physical layer data channel (i.e., an uplink channel that can be used to carry physical layer data).

As an embodiment, the first signal is transmitted on a PUSCH (Physical Uplink Shared CHannel).

As an embodiment, the first signal is transmitted on a psch.

As an example, the step in block F51 in fig. 5 exists; the first information block is used by the first node U2 to determine the first rank.

As one embodiment, the first information block is transmitted on a PDSCH.

Example 6

Embodiment 6 illustrates a schematic diagram of a first signal according to an embodiment of the present application; as shown in fig. 6. In embodiment 6, the first signal includes only the first sub-signal.

As an embodiment, a first reference signal resource is used to determine a spatial relationship of the first sub-signal; the first reference signal resource is configured with S1 ports (ports), S1 being a positive integer greater than 1.

As an embodiment, the first sub-signal is sent by the S1 ports.

For one embodiment, the transmit antenna ports of the first sub-signal include the S1 ports.

As an embodiment, the transmitting antenna ports of the first sub-signal are the S1 ports.

As an embodiment, the first Reference Signal resource includes an SRS (Sounding Reference Signal) resource (resource).

As an embodiment, the first reference signal resource is an SRS resource (resource)

As an embodiment, the first reference signal resource comprises one set of SRS resources (resource set).

As one embodiment, the first reference signal resource is one of a first set of reference signal resources, the first set of reference signal resources including at least one reference signal resource.

As an embodiment, the value of the higher layer parameter use corresponding to the first reference signal resource set is equal to 'codebook'.

As an embodiment, the first set of reference signal resources is configured by a higher layer parameter srs-resourcesetttoaddmodlist or srs-resourcesetttoaddmodlist-formdciformat 0_ 2.

As an embodiment, the first set of reference signal resources is configured by the SRS-resourcesetttoaddmodlist field or the SRS-resourcesetttoaddmodlist-format dciformat0-2-r16 field in the SRS-config IE.

For one embodiment, srs-ResourceSet is included in the name of higher layer parameters configuring the first set of reference signal resources.

For one embodiment, the ports include SRS ports.

For one embodiment, the ports include reference signal ports.

For one embodiment, the port includes an antenna port.

As one embodiment, the port is an SRS port.

For one embodiment, the port is a reference signal port.

As one embodiment, the port is an antenna port.

As an embodiment, the first set of reference signal resources comprises one set of SRS resources (resource set).

For an embodiment, the first set of reference signal resources is a set of SRS resources.

As one embodiment, the first set of reference signal resources includes only the first reference signal resources.

As an embodiment, the first set of reference signal resources includes one reference signal resource different from the first reference signal resource.

As an embodiment, the first signaling comprises a third field, the third field in the first signaling indicates the first reference signal resource; the third field includes at least one binary bit.

As an embodiment, the third field in the first signaling indicates the first set of reference signal resources.

As an embodiment, the third field in the first signaling indicates the first reference signal resource from the first set of reference signal resources.

As an embodiment, the third field includes information in an SRS resource indicator field (field).

As an embodiment, the third field is an SRS resource indicator field (field).

As an embodiment, the SRS resource indicator field is defined in 3GPP TS38.212, section 7.3

For one embodiment, the third field includes information in one or more fields in the DCI.

As an embodiment, the first reference signal resource is used to determine a spatial relationship of the first signal.

As an embodiment, the first signal is sent by the S1 ports.

For one embodiment, the transmit antenna ports of the first signal include the S1 ports.

Example 7

Embodiment 7 illustrates a schematic diagram of a first signal according to an embodiment of the present application; as shown in fig. 7. In embodiment 7, the first signal includes the first sub-signal and the second sub-signal.

As an embodiment, if the first signal includes the second sub-signal, the first signal is composed of the first sub-signal and the second sub-signal; the first signal only includes the first sub-signal if the first signal does not include the second sub-signal.

As an embodiment, the first and second sub-signals each carry the first bit block.

As an embodiment, the first and second sub-signals each comprise two repeated transmissions of the first bit block in the time domain.

As an embodiment, the first sub-signal and the second sub-signal correspond to a same HARQ process number.

As an embodiment, the time domain resource occupied by the first sub-signal and the time domain resource occupied by the second sub-signal are orthogonal to each other.

As an embodiment, the first sub-signal and the second sub-signal occupy the same frequency domain resource.

As an embodiment, the frequency domain resources occupied by the first sub-signal and the frequency domain resources occupied by the second sub-signal overlap each other.

As an embodiment, the first reference signal resource is used for determining a spatial relationship of only the first sub-signal of the first and second sub-signals.

As an embodiment, a second reference signal resource configured with S2 ports (ports) is used to determine the spatial relationship of the second sub-signal, and S2 is a positive integer greater than 1.

As an embodiment, the second sub-signal is sent by the S2 ports.

For one embodiment, the transmit antenna ports of the second sub-signal include the S2 ports.

As an embodiment, the transmitting antenna ports of the second sub-signal are the S2 ports.

As one example, the S1 is equal to the S2.

For one embodiment, the S1 is not equal to the S2.

For one embodiment, the second reference signal resource includes an SRS resource (resource).

As an embodiment, the second reference signal resource is an SRS resource (resource)

As an embodiment, the second reference signal resource comprises one set of SRS resources (resource set).

As an embodiment, the second reference signal resource is one of a second set of reference signal resources, the second set of reference signal resources including at least one reference signal resource.

As an embodiment, the value of the higher layer parameter use corresponding to the second reference signal resource set is equal to 'codebook'.

As an embodiment, the second set of reference signal resources is configured by higher layer parameters, and the name of the higher layer parameters configuring the second set of reference signal resources includes srs-ResourceSet.

As an embodiment, the second set of reference signal resources comprises one set of SRS resources (resource set).

For one embodiment, the second set of reference signal resources includes only the second reference signal resources.

As an embodiment, the second set of reference signal resources includes a different reference signal resource than the second reference signal resource.

As an embodiment, the third field in the first signaling indicates the second reference signal resource.

As an embodiment, the third field in the first signaling indicates the second set of reference signal resources.

As an embodiment, the third field in the first signaling indicates the second reference signal resource from the second set of reference signal resources.

For one embodiment, the third field includes a third sub-field and a fourth sub-field; the third subfield in the first signaling indicates the first reference signal resources and the fourth subfield in the first signaling indicates the second reference signal resources.

For one embodiment, the third subfield includes the first X2 bits in the third field and the fourth subfield includes the last X3 bits in the third field; the third field includes a number of bits equal to the X2 plus the X3.

As one embodiment, the first sub-signal comprises P1 sub-signals, P1 is a positive integer greater than 1; the P1 sub-signals are respectively P1 repeated transmissions of the first bit block in the time domain; the P1 sub signals are mutually orthogonal in a pairwise manner in a time domain; the first reference signal resource is used to determine the spatial relationship of any of the P1 sub-signals.

For one embodiment, the second sub-signal comprises P2 sub-signals, P2 is a positive integer greater than 1; the P2 sub-signals are respectively P2 repeated transmissions of the first bit block in the time domain; the P2 sub signals are mutually orthogonal in a pairwise manner in a time domain; the second reference signal resource is used to determine the spatial relationship of any of the P2 sub-signals.

For one embodiment, the latest one of the P1 sub-signals is earlier in the time domain than the earliest one of the P2 sub-signals.

As an embodiment, the earliest of the P1 sub-signals is later in the time domain than the latest of the P2 sub-signals.

As an embodiment, reference signal resources in a first set of reference signal resources are used to determine the spatial relationship of the first sub-signal.

As an embodiment, reference signal resources in the second set of reference signal resources are used to determine the spatial relationship of the second sub-signal.

As one embodiment, the first and second sets of reference signal resources each include at least one reference signal resource.

As an embodiment, there is not one reference signal resource belonging to both the first and second reference signal resource groups.

As one embodiment, the reference signal resources in the first and second sets of reference signal resources include SRS resources.

As one embodiment, the Reference Signal resources in the first and second Reference Signal resource groups include CSI-RS (Channel State Information-Reference Signal) resources.

As an embodiment, the reference Signal resources in the first reference Signal resource group and the second reference Signal resource group include SSB (synchronization Signal/physical broadcast channel Block) resources.

As an embodiment, any one of the reference signal resource groups of the first reference signal resource group and any one of the reference signal resource groups of the second reference signal resource group cannot be assumed to be QCL (Quasi-Co-Located).

As one embodiment, any one of the first set of reference signal resources and any one of the second set of reference signal resources cannot be assumed to be QCL and to correspond to QCL-type.

As an embodiment, any one of the packets of reference signal resources in the first set of reference signal resources and any one of the resources in the second set of reference signal resources is not QCL.

As one embodiment, any reference signal resource in the first set of reference signal resources and any reference signal resource in the second set of reference signal resources is not QCL and corresponds to QCL-type.

As an embodiment, the first and second sets of reference signal resources are each one of M sets of reference signal resources, M being a positive integer greater than 1.

As one embodiment, the first signal includes only the first sub-signal; the first signaling indicates the first set of reference signal resources from among the M sets of reference signal resources.

As an embodiment, the third domain in the first signaling indicates the first set of reference signal resources from among the M sets of reference signal resources.

As an embodiment, the first signal includes the second sub-signal, the first signaling indicates the first set of reference signal resources and the second set of reference signal resources from among the M sets of reference signal resources.

As an embodiment, the third domain in the first signaling indicates the first set of reference signal resources and the second set of reference signal resources from among the M sets of reference signal resources.

As an example, said M is equal to 2.

As one embodiment, M is greater than 2.

As one embodiment, the first signal includes the second sub-signal, the M equals 2; the location of the first set of reference signal resources among the M sets of reference signal resources is a default.

As an embodiment, the first port number is a maximum value among the number of ports in the first reference signal resource group for which all reference signal resources are configured.

As an embodiment, the second port number is a maximum value among the number of ports to which all reference signal resources in the second reference signal resource group are configured.

For one embodiment, the number S1 is equal to the first port number.

As an example, the S1 is smaller than the first port number.

For one embodiment, the number S2 is equal to the second port number.

For one embodiment, the S2 is less than the second port number.

For one embodiment, the first number of ports is equal to the second number of ports.

For one embodiment, the first number of ports is not equal to the second number of ports.

As an embodiment, the first reference signal resource is one reference signal resource in the first set of reference signal resources.

As an embodiment, any one of the first set of reference signal resources is one of the first set of reference signal resources.

As one embodiment, the first set of reference signal resources is the first set of reference signal resources.

As an embodiment, the second reference signal resource is one reference signal resource in the second set of reference signal resources.

As an embodiment, any one of the second set of reference signal resources is one of the second set of reference signal resources.

As an embodiment, the second set of reference signal resources is the second set of reference signal resources.

As an embodiment, the third domain in the first signaling indicates the first reference signal resource from the first set of reference signal resources.

As an embodiment, the third domain in the first signaling indicates the second reference signal resource from the second set of reference signal resources.

As an embodiment, the fourth rank and the fifth rank are configured for higher layer signaling, respectively; the fourth rank number and the fifth rank number are positive integers, respectively; the fourth rank and the fifth rank are applicable to the first reference signal resource group and the second reference signal resource group, respectively.

As an embodiment, the name of higher layer signaling configuring the fourth rank number includes maxRank.

As an embodiment, the name of higher layer signaling configuring the fifth rank number includes maxRank.

As an embodiment, the first rank is the maximum of the fourth rank and the fifth rank.

As an embodiment, the first rank is the minimum of the fourth rank and the fifth rank.

As an embodiment, the fourth rank is not equal to the fifth rank.

As an embodiment, the fourth rank is equal to the fifth rank.

As an embodiment, if the reference signal resources in the first reference signal resource group are used to determine the spatial relationship of one signal, the number of layers of the one signal cannot be greater than the fourth rank number; the number of layers of one signal cannot be greater than the fifth rank number if the reference signal resources in the second set of reference signal resources are used to determine the spatial relationship of the one signal.

As one embodiment, the spatial relationship includes a TCI (Transmission Configuration Indicator) state (state).

For one embodiment, the spatial relationship includes QCL (Quasi-Co-Located) parameters.

As one embodiment, the spatial relationship comprises a QCL hypothesis (assumption).

As one embodiment, the spatial relationship includes a spatial setting.

For one embodiment, the spatial relationship includes an antenna port.

For one embodiment, the spatial relationship includes a transmit antenna port.

As one embodiment, the spatial relationship includes a spatial domain filter.

As one embodiment, the spatial relationship includes a spatial domain transmission filter.

As one embodiment, the spatial relationship comprises a spatial domain receive filter.

As one embodiment, the Spatial relationship includes a Spatial Tx parameter.

As one embodiment, the Spatial relationship includes a Spatial Rx parameter.

As an embodiment, the spatial relationship comprises large-scale properties.

As an embodiment, the large-scale characteristics (large-scale properties) include one or more of delay spread (delay spread), Doppler spread (Doppler spread), Doppler shift (Doppler shift), average delay (average delay), or Spatial Rx parameter.

As an embodiment, the meaning that the second sub-signal and the first sub-signal correspond to different spatial relationships in the sentence includes: the first sub-signal and the second sub-signal are respectively transmitted by different antenna port groups; one antenna port group includes at least one antenna port.

As an embodiment, the meaning that the second sub-signal and the first sub-signal correspond to different spatial relationships in the sentence includes: any transmitting antenna port of the second sub-signal is not a transmitting antenna port of the first sub-signal, and any transmitting antenna port of the first sub-signal is not a transmitting antenna port of the second sub-signal.

As an embodiment, the meaning that the second sub-signal and the first sub-signal correspond to different spatial relationships in the sentence includes: any transmit antenna port of the second sub-signal and any transmit antenna port of the first sub-signal are not QCL.

As an embodiment, the meaning that the second sub-signal and the first sub-signal correspond to different spatial relationships in the sentence includes: any transmit antenna port of the second sub-signal and any transmit antenna port of the first sub-signal are not QCL and correspond to QCL-TypeD.

As an embodiment, the meaning that the second sub-signal and the first sub-signal correspond to different spatial relationships in the sentence includes: the first node transmits the first sub-signal and the second sub-signal with different spatial filters.

As an embodiment, the meaning that the second sub-signal and the first sub-signal correspond to different spatial relationships in the sentence includes: the large scale characteristics of the channel experienced by the second sub-signal cannot be inferred from the large scale characteristics of the channel experienced by the first sub-signal.

As an embodiment, the meaning that the second sub-signal and the first sub-signal correspond to different spatial relationships in the sentence includes: the channel experienced by the second sub-signal cannot be inferred from the channel experienced by the first sub-signal.

As an embodiment, the meaning that one reference signal resource is used to determine the spatial relationship of one signal includes: the one reference signal resource is reserved for one reference signal, and the spatial filter of the one reference signal is used for determining the spatial filter of the one signal.

As an embodiment, the meaning that one reference signal resource is used to determine the spatial relationship of one signal includes: the one reference signal resource is reserved for one reference signal, and the first node receives the one reference signal and transmits the one signal by using the same spatial filter.

As an embodiment, the meaning that one reference signal resource is used to determine the spatial relationship of one signal includes: the one reference signal resource is reserved for one reference signal, and the first node transmits the one reference signal and the one signal with the same spatial filter.

As an embodiment, the meaning that one reference signal resource is used to determine the spatial relationship of one signal includes: the one reference signal resource is reserved for one reference signal, one transmit antenna port of the one signal and the one reference signal QCL.

As a sub-embodiment of the above embodiment, any transmit antenna port of the one signal and the one reference signal QCL.

As an embodiment, the meaning that one reference signal resource is used to determine the spatial relationship of one signal includes: the one reference signal resource is reserved for one reference signal, one transmitting antenna port of the one signal and the one reference signal QCL and correspond to QCL-type D.

As a sub-embodiment of the above embodiment, any transmitting antenna port of the one signal and the one reference signal QCL correspond to QCL-type d.

As an embodiment, the meaning that one reference signal resource is used to determine the spatial relationship of one signal includes: the one reference signal resource is configured with one port group; the one signal is transmitted by the one port group.

As an embodiment, the meaning that one reference signal resource is used to determine the spatial relationship of one signal includes: the one reference signal resource is configured with one port group; the transmit antenna port of the one signal is comprised of all ports in the port group.

As an embodiment, the meaning that one reference signal resource is used to determine the spatial relationship of one signal includes: the one reference signal resource is configured with one port group; the transmit antenna port of the one signal includes all ports in the one port group.

Example 8

Embodiment 8 illustrates a schematic diagram of a first signal according to an embodiment of the present application; as shown in fig. 8.

As an embodiment, there is one sub-signal among the P1 sub-signals that is located in the middle of two sub-signals among the P2 sub-signals in the time domain.

As an embodiment, there is one sub-signal among the P2 sub-signals that is located in the middle of two sub-signals among the P1 sub-signals in the time domain.

Example 9

Embodiment 9 illustrates a schematic diagram in which third information is used to determine whether a first signal includes a second sub-signal according to an embodiment of the present application; as shown in fig. 9.

As an embodiment, the third information is used by the first node to determine whether the first signal comprises the second sub-signal.

As an embodiment, the third information is carried by layer 1(L1) signaling.

As an embodiment, the third information is carried by the first signaling.

For one embodiment, the third information includes all or part of the information in the Time domain resource assignment field.

As an embodiment, the third information includes all or part of information in the SRS resource indicator field.

As an embodiment, the third information includes all or part of information in the Antenna ports domain.

As an embodiment, the third information includes all or part of information in one field in one DCI.

As an embodiment, the third information includes all or part of information in a plurality of fields in one DCI.

As an embodiment, the third information is carried by higher layer signaling.

As an embodiment, the third information is carried by RRC signaling.

As an embodiment, the third information is carried by MAC CE signaling.

As an embodiment, the third information is carried by the first signaling and RRC signaling together.

As an embodiment, if the first node is configured with a first parameter and the value of the first parameter is greater than 1, the first signal comprises the second sub-signal; otherwise, the first signal comprises only the first sub-signal; the first parameter is a higher layer parameter.

In one embodiment, the name of the first parameter includes an AggregationFactor.

As an embodiment, the first signal comprises the second sub-signal if all conditions in a fourth set of conditions are met; otherwise, the first signal comprises only the first sub-signal; the fourth set of conditions comprises one or more conditions that a second parameter is configured and values of the second parameter belong to a first set of parameter values, the first signaling indicates that the first bit block is repeatedly transmitted more than 1 times in the time domain, the first signaling indicates the first and second reference signal resources, or that all DMRS port(s) indicated by the first signaling belong to one CDM group; the second parameter is a higher layer parameter, and the first set of parameter values includes at least one parameter value.

As an embodiment, the name of the second parameter includes RepScheme.

As an embodiment, the repetionscheme is included in the name of the second parameter.

As an embodiment, any parameter value in the first set of parameter values includes "tdmsceme".

As an embodiment, one parameter value of the first set of parameter values is "TDMSchemeA".

As an embodiment, one parameter value of the first set of parameter values is "TDMSchemeB".

As an embodiment, the first rank number is a maximum of a number of layers supportable by the first signal when the first signal includes only the first sub-signal.

As an embodiment, the second rank number is a maximum of a number of layers supportable by the first signal when the first signal includes the second sub-signal.

As an embodiment, the third rank number is a maximum of a number of layers supportable by the first signal when the first signal includes the second sub-signal.

In one embodiment, the number of layers of the first sub-signal is equal to the number of layers of the second sub-signal.

In one embodiment, the number of layers of the first signal is equal to the number of layers of the first sub-signal.

As an embodiment, the value of the first integer is independent of whether the first signal comprises the second sub-signal.

Example 10

Embodiment 10 illustrates a schematic diagram of a first type of codeword and a second type of codeword according to an embodiment of the present application; as shown in fig. 10. In embodiment 10, any first-type codeword in the first codebook indicates one first-type index, and any second-type codeword in the second codebook indicates two first-type indices; one of the first class indices indicates one matrix.

As an embodiment, any first type codeword in the first codebook of the sentence indicates a first type index means that: the number of first class indexes indicated by any first class code word in the first codebook is equal to 1.

As an embodiment, any second class codeword in the second codebook of the sentence indicates two first class indices means: the number of first class indexes indicated by any second class codeword in the second codebook is equal to 2.

As an embodiment, the first type index includes TPMI (Transmitted Precoding Matrix Indicator).

As an embodiment, any one of said first type indices comprises one TPMI.

As an embodiment, any one of said first type indices is a TPMI.

As an embodiment, one matrix indicated by any one of the first type indices is a precoding matrix.

As an embodiment, any of the indices of the first type is the TPMI index of the indicated one matrix.

As an embodiment, one of said first type codewords comprises one first type index.

As an embodiment, one codeword of the first type indicates one layer number.

As an embodiment, the number of layers indicated by any first type codeword in the first codebook is not greater than the first rank number.

In one embodiment, one of the first type codewords includes one first type index and one layer number.

As an embodiment, the number of columns of the matrix indicated by the first class index indicated by any given first class codeword in the first codebook is equal to the number of layers indicated by the given first class codeword.

As an embodiment, one of said second class codewords comprises two first class indices.

As an embodiment, one of said second type of code words indicates one layer number.

As an embodiment, any second-type codeword in the second codebook indicates a number of layers not greater than the second rank number.

As an embodiment, any second-type codeword in the second codebook indicates a number of layers not greater than the third rank number.

As an embodiment, one of the second class codewords includes two first class indices and one layer number.

As an embodiment, the two first class indices indicated by any given second class codeword in the second codebook indicate that the number of columns of the two matrices is equal, respectively.

As an embodiment, the two first class indices indicated by any given second class codeword in the second codebook respectively indicate that the number of columns of any of the two matrices is equal to the number of layers indicated by the given second class codeword.

As an embodiment, the number of rows of the matrix indicated by the first type index indicated by any first type codeword in the first codebook is equal to S1.

As an embodiment, the number of rows of the two matrices respectively indicated by the two first-type indexes indicated by any second-type codeword in the second codebook is equal to the S1 and the S2, respectively.

As an embodiment, the number of rows of the matrix indicated by the first type index indicated by any one of the first type codewords in the first codebook is equal to the number of the first ports.

As an embodiment, the number of rows of the two matrices respectively indicated by the two first-type indices indicated by any one second-type codeword in the second codebook is equal to the number of first ports and the number of second ports, respectively.

As an embodiment, the first candidate integer is a positive integer.

As an embodiment, the first candidate integer is equal to 1.

As an embodiment, the first candidate integer is a positive integer greater than 1.

For one embodiment, the first candidate integer is equal to a base-2 logarithmic ceiling of the number of first type codewords included in the first codebook.

As an embodiment, the first candidate integer is equal to a smallest positive integer of a base-2 logarithm of a number of first type codewords included in the first codebook or not.

As an embodiment, the second candidate integer is a positive integer.

As an embodiment, the second candidate integer is equal to 1.

As an embodiment, the second candidate integer is a positive integer greater than 1.

As an embodiment, the second candidate integer is equal to a base-2 logarithmic ceiling of the number of second type codewords included in the second codebook.

As an embodiment, the second candidate integer is equal to a base-2 logarithm of the number of second type codewords included in the second codebook.

As an embodiment, the second candidate integer is equal to a smallest positive integer of a base-2 logarithm of the number of second type codewords included in the second codebook or not.

Example 11

Embodiment 11 illustrates a schematic diagram of a first type of codeword, a second type of codeword, and a third type of codeword according to an embodiment of the present application; as shown in fig. 11. In embodiment 11, the second rank is used to determine a third codebook, the third codebook comprising at least one codeword of a third type; any first-class codeword in the first codebook indicates a first-class index, any second-class codeword in the second codebook indicates a first-class index, and any third-class codeword in the third codebook indicates a first-class index; one of the first class indices indicates one matrix.

As an embodiment, the second rank is used by the first node and for determining the third codebook.

As one embodiment, the second rank indicator is used by the second node to determine the third codebook.

As an embodiment, the number of codewords of the second type included in the second codebook and the number of codewords of the third type included in the third codebook are jointly used by the first node and/or the second node for determining the second candidate integer.

As an embodiment, any second-class codeword in the second codebook of the sentence indicates a first-class index means that: the number of first class indexes indicated by any second class codeword in the second codebook is equal to 1.

As an embodiment, any third type codeword in the third codebook of the sentence indicates a first type index in the following sense: the number of first class indexes indicated by any third class codeword in the third codebook is equal to 1.

As an embodiment, the number of columns of the matrix indicated by any given second-type codeword in the second codebook is equal to the number of layers indicated by the given second-type codeword.

As an embodiment, one of the second class codewords comprises one first class index and one layer number.

As an embodiment, the third codebook comprises a number of third type codewords equal to 1.

As an embodiment, the third codebook comprises a number of third type codewords larger than 1.

As an embodiment, the third codebook comprises a number of third type codewords not larger than 64.

As an embodiment, the third codebook comprises a number of third type codewords not greater than 256.

As an embodiment, one of said third type code words indicates a number of layers (layer), a number of layers being a positive integer.

As an embodiment, one of said third class of code words comprises a layer number, a layer number being a positive integer.

As an embodiment, any third type codeword in the third codebook indicates a number of layers not greater than the second rank number.

As an embodiment, any third type codeword in the third codebook indicates a number of layers not greater than the third rank number.

As an embodiment, one of said third type of code words comprises only one index of the first type.

As an embodiment, one of the third class codewords comprises a first class index and a layer number.

As an embodiment, the number of columns of the matrix indicated by any given third type codeword in the third codebook is equal to the number of layers indicated by the given third type codeword.

As an embodiment, the third codebook comprises a number of third type codewords equal to a number of second type codewords comprised by the second codebook.

As an embodiment, the third codebook comprises a number of third type codewords that is not equal to a number of second type codewords that the second codebook comprises.

As an embodiment, the second candidate integer is equal to a base-2 logarithmic ceiling of a product of a number of second type codewords included in the second codebook and a number of third type codewords included in the third codebook.

As an embodiment, the second candidate integer is equal to a smallest positive integer no less than a base-2 logarithm of a product of a number of codewords of the second type included in the second codebook and a number of codewords of the third type included in the third codebook.

As an embodiment, the second candidate integer is equal to a sum of an integer rounded in base-2 logarithmic direction of the number of second type codewords included in the second codebook and an integer rounded in base-2 logarithmic direction of the number of third type codewords included in the third codebook.

As an embodiment, the second candidate integer is equal to a sum of an integer rounded in a base-2 logarithmic direction of the number of second type codewords included in the second codebook and a third integer; the third integer is equal to the base-2 logarithm of the number of third type code words included in the first sub-codebook; the first sub-codebook is a proper subset of the third codebook.

As an embodiment, the third codebook includes R subcodebooks, R being a positive integer greater than 1; the R sub-codebooks are respectively in one-to-one correspondence with the R integers, and the R sub-codebooks are respectively composed of third type codewords of which the column number of the matrix indicated in the third codebook is equal to the R integers; the R integers are not equal to each other pairwise; the first sub-codebook is a sub-codebook with the largest number of third-type codewords included in the R sub-codebooks.

As a sub-embodiment of the above embodiment, any one of the R integers is not greater than the second rank number.

As a sub-embodiment of the above embodiment, any one of the R integers is not greater than the third rank number.

As a sub-embodiment of the above embodiment, the R integers are 1 to R, respectively.

As a sub-embodiment of the above embodiment, the R is equal to the second rank number.

As a sub-embodiment of the above embodiment, the R is equal to the third rank number.

As an embodiment, the number of rows of the matrix indicated by the first class index indicated by any second class codeword in the second codebook is equal to S1.

As an embodiment, the number of rows of the matrix indicated by the first class index indicated by any third class codeword in the third codebook is equal to S2.

In an embodiment, the number of rows of a matrix indicated by the first-type index indicated by any one of the second-type codewords in the second codebook is equal to the number of the first ports.

As an embodiment, the number of rows of the matrix indicated by the first class index indicated by any third class codeword in the third codebook is equal to the number of the second ports.

As an embodiment, the third codebook is the second codebook.

As an embodiment, the third codebook is different from the second codebook.

Example 12

Embodiment 12 illustrates a schematic diagram of K1 candidate codebooks, K1 rank arrays, K2 candidate codebooks, and K2 rank arrays according to an embodiment of the present application; as shown in fig. 12. In embodiment 12, the first codebook is one of the K1 candidate codebooks, and the second codebook is one of the K2 candidate codebooks; the K1 candidate codebooks respectively correspond to the K1 rank arrays, and the K2 candidate codebooks respectively correspond to the K2 rank arrays. In fig. 12, the indexes of the K1 candidate codebooks and the K1 rank arrays are #0,., # (K1-1), respectively; the indices of the K2 candidate codebooks and the K2 rank arrays are # 0., # (#) (K2-1), respectively.

As an embodiment, the first rank is used by the first node and/or the second node to determine the first codebook from the K1 candidate codebooks, and the second rank is used by the first node and/or the second node to determine the second codebook from the K2 candidate codebooks.

As one example, the K1 is equal to the K2.

As one embodiment, the K1 is not equal to the K2.

As one embodiment, the K1 is no greater than 64 and the K2 is no greater than 64.

As an embodiment, the K1 is equal to the K2, the K1 candidate codebooks are the K2 candidate codebooks, and the K1 rank arrays are the K2 rank arrays.

As an embodiment, at least one of the K1 candidate codebooks does not belong to the K2 candidate codebooks.

As an embodiment, at least one of the K2 candidate codebooks does not belong to the K1 candidate codebooks.

As an embodiment, any one of the K1 candidate codebooks does not belong to the K2 candidate codebooks.

As an embodiment, any one of the K2 candidate codebooks does not belong to the K1 candidate codebooks.

As an embodiment, the K1 candidate codebooks and the K1 rank arrays are predefined.

As an embodiment, the K2 candidate codebooks and the K2 rank arrays are predefined.

As an embodiment, the correspondence between the K1 candidate codebooks and the K1 rank arrays is predefined.

As an embodiment, the correspondence between the K2 candidate codebooks and the K2 rank arrays is predefined.

As an embodiment, one candidate codebook in the K1 candidate codebooks includes all or part of the content in one Table in the first Table set.

As an embodiment, one candidate codebook among the K1 candidate codebooks includes the content of a value corresponding to the same codebook subset in one Table in the first Table set.

As an embodiment, any one of the K1 candidate codebooks includes all or part of the content in one Table in the first Table set.

As an embodiment, any one of the K1 candidate codebooks includes the content of a value corresponding to the same codebook subset in one Table in the first Table set.

As an embodiment, one candidate codebook among the K2 candidate codebooks includes the content of a value corresponding to the same codebook subset in one Table in the first Table set.

As an embodiment, one candidate codebook among the K2 candidate codebooks includes partial content of a value corresponding to the same codebook subset in one Table in the first Table set.

As an embodiment, the first Table set includes Table 7.3.1.1.2-2, Table 7.3.1.1.2-2A, Table 7.3.1.1.2-2B, Table 7.3.1.1.2-3A, Table 7.3.1.1.2-4A, Table 7.3.1.1.2-5 and Table 7.3.1.1.2-5A in GPP TS 38.212.

As an embodiment, any rank in any of the K1 rank arrays is a positive integer.

As an embodiment, any rank number in any rank array of the K1 rank arrays is a positive integer no greater than 4.

As an embodiment, any rank in any of the K2 rank arrays is a positive integer.

As an embodiment, any rank number in any rank array of the K2 rank arrays is a positive integer no greater than 4.

As an embodiment, one rank array out of the K1 rank arrays includes only 1 rank.

As an embodiment, one rank array out of the K1 rank arrays includes a plurality of rank arrays.

As an embodiment, one rank array out of the K2 rank arrays includes only 1 rank.

As an embodiment, one rank array out of the K2 rank arrays includes a plurality of rank arrays.

As an example, there are two identical rank arrays in the K1 rank arrays.

As an example, there are two different rank arrays in the K1 rank arrays.

As an example, there are two identical rank arrays in the K2 rank arrays.

As an example, there are two different rank arrays in the K2 rank arrays.

As an embodiment, any one of the K1 candidate codebooks includes at least one codeword of the first type.

As an embodiment, any one of the K1 candidate codebooks includes a plurality of codewords of the first type.

As an embodiment, any one of the K1 candidate codebooks includes any one first type codeword indicating one layer number.

As an embodiment, any one of the K1 candidate codebooks includes any one of the first type codewords indicating one first type index, and one of the first type indexes indicates one matrix.

As an embodiment, the number of layers indicated by any first type codeword in any candidate codebook of the K1 candidate codebooks is not greater than the maximum value of the rank numbers included in the corresponding rank array.

As an embodiment, any one of the K1 candidate codebooks may indicate that the number of columns of the matrix indicated by any one of the first type codewords is not greater than the maximum value of the number of columns included in the corresponding rank array.

As an embodiment, any one of the K2 candidate codebooks includes at least one codeword of the second type.

As an embodiment, any one of the K2 candidate codebooks includes a plurality of codewords of the second type.

As an embodiment, any candidate codebook in the K2 candidate codebooks includes any second-type codeword indicating a layer number.

As an embodiment, any one of the K2 candidate codebooks includes any one of the second class codewords indicating two first class indexes, and one of the first class indexes indicates one matrix.

As an embodiment, any candidate codebook in the K2 candidate codebooks includes two first-class indexes indicated by any second-class codeword, and the two first-class indexes respectively indicate the same number of columns of the matrix.

As an embodiment, the number of layers indicated by any second-type codeword in any candidate codebook of the K2 candidate codebooks is not greater than the maximum value of the rank numbers included in the corresponding rank array.

As an embodiment, the number of columns of any one of the two matrices indicated by any second-type codeword in any one of the K2 candidate codebooks is not greater than the maximum value of the number of columns included in the corresponding rank array.

As an embodiment, any second-type codeword in any one of the K2 candidate codebooks indicates a matrix with a number of columns not greater than a maximum value of a rank comprised by the corresponding rank array.

As an embodiment, the first codebook is a codebook in which a corresponding rank array of the K1 candidate codebooks includes the first rank number.

As an embodiment, the second codebook is a codebook in which a corresponding rank array of the K2 candidate codebooks includes the second rank.

As an embodiment, the third rank is used to determine the second codebook from the K2 candidate codebooks.

As an embodiment, the second codebook is a codebook in which the corresponding rank array of the K2 candidate codebooks includes the third rank.

As an embodiment, the K1 candidate codebooks respectively correspond to K1 port numbers.

As an embodiment, one port number is a positive integer.

As an embodiment, the K1 port numbers are predefined.

As an embodiment, the first codebook is a codebook in which the port number corresponding to the K1 candidate codebooks is equal to the S1.

As an embodiment, the first codebook is a codebook in which the number of ports corresponding to the K1 candidate codebooks is equal to the first number of ports.

As an embodiment, the first codebook is a codebook in which the corresponding port number in the K1 candidate codebooks is equal to the maximum value of the first port number and the second port number.

As an embodiment, the K2 candidate codebooks respectively correspond to K2 port arrays, and a port array includes two port numbers.

As an embodiment, the K2 port arrays are predefined.

As an embodiment, the second codebook is a codebook in which the port arrays corresponding to the K2 candidate codebooks include two port numbers equal to the S1 and the S2, respectively.

As an embodiment, the second codebook is a codebook in which two port numbers included in the port array corresponding to the K2 candidate codebooks are equal to the first port number and the second port number, respectively.

As an embodiment, the K2 candidate codebooks respectively correspond to K2 port numbers.

As an embodiment, the K2 port numbers are predefined.

As an embodiment, the second codebook is a codebook in which the port number corresponding to the K2 candidate codebooks is equal to the S1.

As an embodiment, the second codebook is a codebook in which the number of ports corresponding to the K2 candidate codebooks is equal to the first number of ports.

As an embodiment, if the first node is configured with a first higher layer parameter, the first parameter value is equal to the value of the first higher layer parameter; if the first node is not configured with the first higher layer parameter, the first parameter value is equal to 'unconfigured'; the value of the first higher layer parameter is equal to one of fullpower, fullpower mode1 or fullpoweemode 2.

As an example, the name of the first higher layer parameter includes FullPowerTransmission.

As an embodiment, the first higher layer parameter is ul-FullPowerTransmission.

As an embodiment, for the first set of reference signal resources, a second parameter value is equal to a value of a second higher layer parameter if the first node is configured with the second higher layer parameter, the second parameter value is equal to 'unconfigured' if the first node is not configured with the second higher layer parameter; for the second set of reference signal resources, a third parameter value equal to a value of a third higher layer parameter if the first node is configured with the third higher layer parameter, the third parameter value equal to 'unconfigured' if the first node is not configured with the third higher layer parameter; the value of the second higher layer parameter and the value of the third higher layer parameter are equal to one of fullpower, fullpower mode1 or fullpoweMode2, respectively.

As an example, the name of the second higher layer parameter includes FullPowerTransmission.

As an embodiment, the name of the third higher layer parameter includes FullPowerTransmission.

As an embodiment, if one reference signal resource in the first reference signal resource group is used to determine the spatial relationship of one signal, the full power mode of the one signal is determined by whether the second higher layer parameter is configured and the configured value of the second higher layer parameter; if one of the second set of reference signal resources is used to determine the spatial relationship of a signal, the full power mode of the signal is determined by whether the third higher layer parameter is configured and the value of the configured third higher layer parameter.

As an embodiment, the K1 candidate codebooks respectively correspond to K1 first-class parameter value sets, and any one of the K1 first-class parameter value sets includes at least one first-class parameter value.

As an example, one of said first type parameter values is equal to one of unconfigured fullpower, fullpower mode1 or fullpoweemode 2.

As an embodiment, the K1 first-class parameter value sets are predefined.

As an embodiment, the first codebook is a candidate codebook in which the corresponding first type parameter value set in the K1 candidate codebooks includes the first parameter value.

As an embodiment, the first codebook is a candidate codebook in which the corresponding first-type parameter value set of the K1 candidate codebooks includes the second parameter value.

As an embodiment, the K2 candidate codebooks respectively correspond to K2 first-class parameter value sets, and any one of the K2 first-class parameter value sets includes at least one first-class parameter value.

As an embodiment, the K2 first-class parameter value sets are predefined.

As an embodiment, the second codebook is a candidate codebook of which the corresponding first type parameter value set of the K2 candidate codebooks includes the first parameter value.

As an embodiment, the second codebook is a candidate codebook in which the corresponding first-type parameter value set of the K2 candidate codebooks includes the second parameter value.

As an embodiment, the K2 candidate codebooks respectively correspond to K2 pairs of first-class parameter value sets, where any pair of first-class parameter value sets in the K2 pairs of first-class parameter value sets includes two first-class parameter value sets, and one first-class parameter value set includes at least one first-class parameter value.

As an embodiment, the K2 pairs of first type parameter values sets are predefined.

As an embodiment, the second codebook is a candidate codebook in which two parameter values of the first type in corresponding parameter value set pairs of the K2 candidate codebooks respectively include the second parameter value and the third parameter value.

As an embodiment, the first node is configured with a fourth higher layer parameter having a value equal to one of fullyandpartialandncouherent, partialandncouherent or nocouherent.

As an embodiment, the name of the fourth higher layer parameter includes codebook subset.

As an embodiment, the fourth higher layer parameter is a codebook subset or codebook subset Format dci-Format 0-2.

As an embodiment, the first node is configured with a fifth higher layer parameter for the first set of reference signal resources and a sixth higher layer parameter for the second set of reference signal resources; the value of the fifth higher layer parameter and the value of the sixth higher layer parameter are equal to one of fullyandpartialandncouherent, partialandncouherent or nocouherent, respectively.

As an embodiment, the name of the fifth higher layer parameter includes codebook subset.

As an embodiment, the name of the sixth higher layer parameter includes codebook subset.

As an embodiment, if one reference signal resource in the first reference signal resource group is used to determine the spatial relationship of one signal, the codebook subset corresponding to the one signal is determined by the fifth higher layer parameter; if one reference signal resource in the second set of reference signal resources is used to determine the spatial relationship of a signal, the codebook subset corresponding to the signal is determined by the sixth higher layer parameter.

As an embodiment, the K1 candidate codebooks respectively correspond to K1 parameter values of the second class.

As an example, one of said second class parameter values is equal to one of fullyandpartialandncouherent, partialandncouherent or nonCoherent.

As an embodiment, the K1 second-class parameter values are predefined.

As an embodiment, the first codebook is a candidate codebook of the K1 candidate codebooks in which the corresponding parameter value of the second type is equal to the value of the fourth higher layer parameter.

As an embodiment, the first codebook is a candidate codebook of the K1 candidate codebooks in which the corresponding parameter value of the second type is equal to the value of the fifth higher layer parameter.

As an embodiment, the K2 candidate codebooks respectively correspond to K2 parameter values of the second class.

As an embodiment, the K2 second-class parameter values are predefined.

As an embodiment, the second codebook is a candidate codebook of the K2 candidate codebooks in which the corresponding parameter value of the second type is equal to the value of the fourth higher layer parameter.

As an embodiment, the second codebook is a candidate codebook of the K2 candidate codebooks in which the corresponding parameter value of the second type is equal to the value of the fifth higher layer parameter.

As an embodiment, the K2 candidate codebooks respectively correspond to K2 parameter value sets of the second type, and one parameter value set of the second type includes two parameter values of the second type.

As an embodiment, the K2 parameter value sets of the second type are predefined.

As an embodiment, the second codebook is a candidate codebook in which two parameter values of the second type in the corresponding parameter value sets of the K2 candidate codebooks are equal to the value of the fifth higher layer parameter and the value of the sixth higher layer parameter, respectively.

As an embodiment, the first node is configured with a seventh higher layer parameter, the value of the seventh higher layer parameter being equal to one of enabled or disabled.

As an embodiment, the name of the seventh higher layer parameter includes transformrecordor.

As an embodiment, the seventh higher layer parameter is transformrecordor.

As an embodiment, the first node is configured with an eighth higher layer parameter for the first set of reference signal resources and a ninth higher layer parameter for the second set of reference signal resources; the value of the eighth higher layer parameter and the value of the ninth higher layer parameter are equal to one of enabled or disabled, respectively.

As an embodiment, if one reference signal resource in the first set of reference signal resources is used to determine the spatial relationship of one signal, whether the one signal is determined by the eighth higher layer parameter using transform precoding; whether or not a signal is precoded with a transform is determined by the ninth higher layer parameter if one of the second set of reference signal resources is used to determine the spatial relationship of the signal.

As an embodiment, the name of the eighth higher layer parameter includes transformrecordor.

As an embodiment, the ninth higher layer parameter includes transformdredor in its name.

As an embodiment, the K1 candidate codebooks respectively correspond to K1 parameter values of the third class.

As an embodiment, one of said third type parameter values is equal to one of enabled or disabled.

As an embodiment, the K1 third class parameter values are predefined.

As an embodiment, the first codebook is a candidate codebook of the K1 candidate codebooks in which the corresponding parameter value of the third type is equal to the value of the seventh higher layer parameter.

As an embodiment, the first codebook is a candidate codebook of the K1 candidate codebooks in which the corresponding parameter value of the third type is equal to the value of the eighth higher layer parameter.

As an embodiment, the K2 candidate codebooks respectively correspond to K2 parameter values of the third class.

As an embodiment, the K2 third class parameter values are predefined.

As an embodiment, the second codebook is a candidate codebook of the K2 candidate codebooks in which the corresponding parameter value of the third type is equal to the value of the seventh higher layer parameter.

As an embodiment, the second codebook is a candidate codebook of the K2 candidate codebooks in which the corresponding parameter value of the third type is equal to the value of the eighth higher layer parameter.

As an embodiment, the K2 candidate codebooks respectively correspond to K2 parameter value sets of the third type, and one parameter value set of the third type includes two parameter values of the third type.

As an embodiment, the K2 parameter value sets of the third type are predefined.

As an embodiment, the second codebook is a candidate codebook in which two parameter values of the third type in corresponding parameter value sets of the K2 candidate codebooks are equal to the value of the eighth higher layer parameter and the value of the ninth higher layer parameter, respectively.

As an embodiment, the third codebook is one of K3 candidate codebooks, K3 is a positive integer greater than 1; the K3 candidate codebooks respectively correspond to K3 rank arrays, and any rank array in the K3 rank arrays comprises at least one rank.

As one example, the K3 is equal to the K1.

As one embodiment, the K3 is not equal to the K1.

As one example, the K3 is equal to the K2.

As one embodiment, the K3 is not equal to the K2.

As an embodiment, the K3 is equal to the K1, the K3 candidate codebooks are the K1 candidate codebooks, and the K3 rank arrays are the K1 rank arrays.

As an embodiment, at least one of the K1 candidate codebooks does not belong to the K3 candidate codebooks.

As an embodiment, at least one of the K3 candidate codebooks does not belong to the K1 candidate codebooks.

As an embodiment, the K3 is equal to the K2, the K3 candidate codebooks are the K2 candidate codebooks, and the K3 rank arrays are the K2 rank arrays.

As an embodiment, at least one of the K2 candidate codebooks does not belong to the K3 candidate codebooks.

As an embodiment, at least one of the K3 candidate codebooks does not belong to the K2 candidate codebooks.

As an embodiment, the K3 candidate codebooks and the K3 rank arrays are predefined.

As an embodiment, the correspondence between the K3 candidate codebooks and the K3 rank arrays is predefined.

As an embodiment, any rank in any of the K3 rank arrays is a positive integer.

As an embodiment, any rank number in any rank array of the K3 rank arrays is a positive integer no greater than 4.

As an embodiment, one rank array out of the K3 rank arrays includes only 1 rank.

As an embodiment, one rank array out of the K3 rank arrays includes a plurality of rank arrays.

As an example, there are two identical rank arrays in the K3 rank arrays.

As an example, there are two different rank arrays in the K3 rank arrays.

As an embodiment, any one of the K3 candidate codebooks includes at least one codeword of the third type.

As an embodiment, any one of the K3 candidate codebooks includes any one third-type codeword indicating one layer number.

As an embodiment, any third-class codeword included in any one of the K3 candidate codebooks indicates a first-class index, and one first-class index indicates a matrix.

As an embodiment, any third-type codeword in any candidate codebook of the K3 candidate codebooks indicates a number of layers not greater than a maximum value of rank numbers included in the corresponding rank array.

As an embodiment, any third type codeword in any one of the K3 candidate codebooks indicates a matrix column number not greater than a maximum value of a rank number included in a corresponding rank array.

As an embodiment, the third codebook is a codebook in which a corresponding rank array of the K3 candidate codebooks includes the second rank.

As an embodiment, the third codebook is a codebook in which a corresponding rank array of the K3 candidate codebooks includes the third rank.

As an embodiment, the K3 candidate codebooks respectively correspond to K3 port numbers.

As an embodiment, the K3 port numbers are predefined.

As an embodiment, the third codebook is a codebook in which the port number corresponding to the K3 candidate codebooks is equal to the S2.

As an embodiment, the third codebook is a codebook in which the number of ports corresponding to the K3 candidate codebooks is equal to the second number of ports.

As an embodiment, the K3 candidate codebooks respectively correspond to K3 first-class parameter value sets, and any one of the K3 first-class parameter value sets includes at least one first-class parameter value.

As an embodiment, the K3 first-class parameter value sets are predefined.

As an embodiment, the third codebook is a candidate codebook in which the corresponding first-type parameter value set of the K3 candidate codebooks includes the first parameter value.

As an embodiment, the third codebook is a candidate codebook in which the corresponding first-type parameter value set of the K3 candidate codebooks includes the third parameter value.

As an embodiment, the K3 candidate codebooks respectively correspond to K3 parameter values of the second class.

As an embodiment, the K3 second-class parameter values are predefined.

As an embodiment, the third codebook is a candidate codebook of the K3 candidate codebooks in which the corresponding parameter value of the second type is equal to the value of the fourth higher layer parameter.

As an embodiment, the third codebook is a candidate codebook of the K3 candidate codebooks in which the corresponding parameter value of the second type is equal to the value of the sixth higher layer parameter.

As an embodiment, the K3 candidate codebooks respectively correspond to K3 parameter values of the third class.

As an embodiment, the K3 parameter values of the third class are predefined.

As an embodiment, the third codebook is a candidate codebook of the K3 candidate codebooks in which the corresponding parameter value of the third type is equal to the value of the seventh higher layer parameter.

As an embodiment, the third codebook is a candidate codebook of the K3 candidate codebooks in which the corresponding parameter value of the third type is equal to the value of the ninth higher layer parameter.

As an embodiment, the first codebook is one of the K1 candidate codebooks that satisfies one of the conditional subsets of the first conditional set; the first set of conditions includes at least one of a first subset of conditions, a second subset of conditions, or a third subset of conditions.

As a sub-embodiment of the above embodiment, the first subset of conditions comprises: the corresponding rank array comprises one or more of the first rank number, the corresponding port number equal to a maximum of the first port number and the second port number, the corresponding first set of parameter values comprises the first parameter value, the corresponding second set of parameter values equal to a value of the fourth higher layer parameter, or the corresponding third set of parameter values equal to a value of the seventh higher layer parameter.

As a sub-embodiment of the above embodiment, the second subset of conditions comprises: a corresponding rank array comprises the first rank number, a corresponding rank array comprises the fourth rank number, a corresponding port number equals the first port number, a corresponding first set of parameter values comprises the first parameter value, a corresponding first set of parameter values comprises the second parameter value, a corresponding second parameter value equals the value of the fourth higher-level parameter, a corresponding second parameter value equals the value of the fifth higher-level parameter, a corresponding third parameter value equals the value of the seventh higher-level parameter, or a corresponding third parameter value equals one or more of the values of the eighth higher-level parameter.

As a sub-embodiment of the above embodiment, the third subset of conditions includes: a corresponding rank array comprises the first rank number, a corresponding rank array comprises the fifth rank number, a corresponding port number equals the second port number, a corresponding first set of parameter values comprises the first parameter value, a corresponding first set of parameter values comprises the third parameter value, a corresponding second parameter value equals the value of the fourth higher-level parameter, a corresponding second parameter value equals the value of the sixth higher-level parameter, a corresponding third parameter value equals the value of the seventh higher-level parameter, or a corresponding third parameter value equals one or more of the values of the ninth higher-level parameter.

As an embodiment, the first set of conditions includes only the first subset of conditions.

As an embodiment, the first set of conditions includes only the second subset of conditions.

As an embodiment, the first set of conditions includes only the third subset of conditions.

As an embodiment, the first set of conditions includes the second subset of conditions and the third subset of conditions.

As an embodiment, the first set of conditions includes the first subset of conditions, the second subset of conditions, and the third subset of conditions.

As an embodiment, one and only one of the K1 candidate codebooks satisfy one conditional subset of the first set of conditions.

As an embodiment, a plurality of candidate codebooks of the K1 candidate codebooks satisfy one condition subset condition of the first condition set; the first codebook is a codebook in which the number of first type codewords included in the plurality of codebooks is the largest.

As a sub-implementation of the foregoing embodiment, if the number of first type codewords included in more than 1 codebook in the plurality of codebooks is equal to the maximum value among the number of first type codewords included in the plurality of codebooks, the first codebook is any one of the more than 1 codebooks.

As an embodiment, the second codebook is one of the K2 candidate codebooks that satisfies one of the conditional subsets of the second set of conditions; the second set of conditions includes at least one of a fourth subset of conditions or a fifth subset of conditions.

As a sub-embodiment of the above embodiment, the fourth subset of conditions includes: a corresponding rank array comprising the second rank number, a corresponding rank array comprising the third rank number, a corresponding port array comprising two port numbers equal to the first port number and the second port number, respectively, the corresponding first-class parameter value set comprises the first parameter value, two first-class parameter value sets in the corresponding first-class parameter value set pair respectively comprise the second parameter value and the third parameter value, the corresponding parameter value of the second type is equal to the value of said fourth higher layer parameter, two parameter values of the corresponding parameter value set of the second type are equal to the value of said fifth higher layer parameter and the value of said sixth higher layer parameter, respectively, the corresponding value of the third type parameter is equal to the value of the seventh higher layer parameter, or two of the corresponding values of the third type parameter value set are equal to one or more of the conditions in the value of the eighth higher layer parameter and the value of the ninth higher layer parameter, respectively.

As a sub-embodiment of the above embodiment, the fifth subset of conditions comprises: the corresponding rank array comprises the second rank number, the corresponding rank array comprises the third rank number, the corresponding port number is equal to the first port number, the corresponding first set of parameter values comprises the first parameter value, the corresponding first set of parameter values comprises the second parameter value, the corresponding second parameter value is equal to the value of the fourth higher-level parameter, the corresponding second parameter value is equal to the value of the fifth higher-level parameter, the corresponding third parameter value is equal to the value of the seventh higher-level parameter, or the corresponding third parameter value is equal to one or more of the values of the eighth higher-level parameter.

As an embodiment, the second set of conditions includes only the fourth subset of conditions.

As an embodiment, the second set of conditions includes only the fifth subset of conditions.

As an embodiment, the second set of conditions includes the fourth subset of conditions and the fifth subset of conditions.

As an embodiment, one and only one of the K2 candidate codebooks satisfies one conditional subset of the second set of conditions.

For one embodiment, a plurality of candidate codebooks of the K2 candidate codebooks satisfy one condition subset of the second condition set; the second codebook is a codebook in which a number of second-type codewords included in the plurality of codebooks is the largest.

As a sub-implementation of the foregoing embodiment, if the number of second-type codewords included in more than 1 codebook in the plurality of codebooks is equal to the maximum value among the number of second-type codewords included in the plurality of codebooks, the second codebook is any one of the more than 1 codebooks.

As an embodiment, the third codebook is one of the K3 candidate codebooks that satisfies a sixth conditional subset; the sixth subset of conditions comprises: the corresponding rank array comprises the second rank number, the corresponding rank array comprises the third rank number, the corresponding port number equals the second port number, the corresponding first set of parameter values comprises the first parameter value, the corresponding first set of parameter values comprises the third parameter value, the corresponding second parameter value equals the value of the fourth higher-level parameter, the corresponding second parameter value equals the value of the sixth higher-level parameter, the corresponding third parameter value equals the value of the seventh higher-level parameter, or the corresponding third parameter value equals one or more of the values of the ninth higher-level parameter.

As an embodiment, the sixth conditional subset is satisfied by one and only one of the K3 candidate codebooks.

As an embodiment, a plurality of candidate codebooks of the K3 candidate codebooks satisfy the sixth conditional subset; the third codebook is a codebook having a largest number of third type codewords included in the plurality of codebooks.

As a sub-implementation of the foregoing embodiment, if the number of third type codewords included in more than 1 codebook in the plurality of codebooks is equal to the maximum value among the number of third type codewords included in the plurality of codebooks, the third codebook is any one of the more than 1 codebooks.

As an embodiment, one subset of conditions comprises 1 or a positive integer number of conditions greater than 1, which one subset of conditions is fulfilled if and only if all conditions in the one subset of conditions are fulfilled.

Example 13

Embodiment 13 illustrates a schematic diagram where third information is used to determine a first target codebook according to an embodiment of the present application; as shown in fig. 13. In embodiment 13, the first target codebook belongs to a first candidate codebook set; the first candidate codebook set consists of the K1 candidate codebooks, or the first candidate codebook set consists of the K2 candidate codebooks; the third information is used to determine the first set of candidate codebooks.

As an embodiment, if said first signal comprises said second sub-signal, said first set of candidate codebooks consists of said K2 candidate codebooks; the first set of candidate codebooks consists of the K1 candidate codebooks if the first signal only comprises the first sub-signal.

For one embodiment, the third information is used by the first node to determine the first codebook-of-interest.

As an embodiment, said first signal comprises only said first sub-signal, said first target codebook being said first codebook.

As an embodiment, the first signal comprises only the first sub-signal, the first target codebook being different from the first codebook.

As an embodiment, the first signal only includes the first sub-signal, and the number of ports corresponding to the first target codebook is smaller than the number of ports corresponding to the first codebook.

As an embodiment, the first signal comprises the first sub-signal and the second sub-signal, and the first target codebook is the second codebook.

As one embodiment, the first signal includes the first sub-signal and the second sub-signal, and the first target codebook is different from the second codebook.

As an embodiment, the first signal includes the first sub-signal and the second sub-signal, and the number of ports corresponding to the first target codebook is smaller than the number of ports corresponding to the second codebook.

As an embodiment, the third information is used to determine a target rank number, and the first target codebook is a candidate codebook of which a corresponding rank array in the first candidate codebook set includes the target rank number.

As an embodiment, the target rank is the first rank if the first signal only comprises the first sub-signal.

As an embodiment, the target rank is the fourth rank if the first signal only comprises the first sub-signal.

As an embodiment, the target rank is the second rank if the first signal comprises the second sub-signal.

As an embodiment, the target rank is the third rank if the first signal comprises the second sub-signal.

As an embodiment, the first target codebook is one of the first set of candidate codebooks that satisfies all of the conditions in the seventh set of conditions; the seventh set of conditions comprises: the corresponding rank array comprises one or more of the target rank number, the corresponding port number equal to S1, the corresponding first set of class parameter values comprising the first parameter value, the corresponding first set of class parameter values comprising the second parameter value, the corresponding second set of class parameter values equal to the value of the fourth higher layer parameter, the corresponding second set of class parameter values equal to the value of the fifth higher layer parameter, the corresponding third set of class parameter values equal to the value of the seventh higher layer parameter, or the corresponding third set of class parameter values equal to the value of the eighth higher layer parameter.

As one embodiment, all conditions in the seventh set of conditions are met by one and only one candidate codebook in the first set of candidate codebooks.

As one embodiment, the first target codebook is one of the first set of candidate codebooks that satisfies all of the conditions in the fifth set of conditions; the fifth set of conditions comprises: the corresponding rank array includes the target rank number, the corresponding port array includes two port numbers equal to the S1 and the S2, the corresponding first-class parameter value set comprises the first parameter value, two first-class parameter value sets in the corresponding first-class parameter value set pair respectively comprise the second parameter value and the third parameter value, the corresponding parameter value of the second type is equal to the value of said fourth higher layer parameter, two parameter values of the corresponding parameter value set of the second type are equal to the value of said fifth higher layer parameter and the value of said sixth higher layer parameter, respectively, the corresponding value of the third type parameter is equal to the value of the seventh higher layer parameter, or two of the corresponding values of the third type parameter value set are equal to one or more of the conditions in the value of the eighth higher layer parameter and the value of the ninth higher layer parameter, respectively.

As one embodiment, all conditions in the fifth set of conditions are satisfied by one and only one candidate codebook in the first set of candidate codebooks.

Example 14

Embodiment 14 illustrates a schematic diagram in which a first matrix is used for precoding of a first sub-signal according to an embodiment of the present application; as shown in fig. 14.

As one embodiment, the first matrix is a precoding matrix of the first signal.

As an embodiment, the first matrix is a precoding matrix of the first subsignal.

As an embodiment, the first sub-signal comprises one layer; the first matrix is applied to the one layer corresponding to the first reference signal resource.

As an embodiment, the first matrix comprises S1 rows, any one of the S1 rows comprising 1 element; the symbols in the one layer included in the first sub-signal are weighted by 1 element included in the S1 rows and mapped to the S1 ports.

As an embodiment, the first sub-signal comprises V layers (layers), V being a positive integer greater than 1; the first matrix is applied to the V layers corresponding to the first reference signal resources.

As one embodiment, the first matrix comprises S1 rows, any one of the S1 rows comprising V elements; the S1 rows correspond one-to-one to the S1 ports; for any given port in the S1 ports, the symbols in the V layers included in the first sub-signal are weighted by the V elements included in the row corresponding to the given port, and then are added to map to the given port.

As one embodiment, the symbols are complex symbols.

As one embodiment, the symbols are complex modulation symbols.

As an embodiment, the first matrix includes a number of rows equal to the S1.

As an embodiment, the first matrix comprises a number of columns equal to a number of layers of the first sub-signal.

As an embodiment, the first matrix comprises a positive integer number of elements greater than 1.

As an embodiment, any element in the first matrix is a complex number.

As an embodiment, there is one element in the first matrix equal to 0.

As an embodiment, there is a complex number in the first matrix whose element is non-zero.

As an embodiment, any element in the first matrix is a non-zero complex number.

As an embodiment, the moduli of any two non-zero elements in the first matrix are equal.

As an embodiment, the first signal comprises the first subsignal and the second subsignal, a second matrix being used for precoding of the second subsignal.

As an embodiment, the second matrix is a precoding matrix of the second subsignal.

As an embodiment, the second sub-signal comprises a layer; the second matrix is applied to the one layer corresponding to the second reference signal resource.

As an embodiment, the second matrix comprises S2 rows, any one of the S2 rows comprising 1 element; the symbols in the one layer included in the second sub-signal are weighted by 1 element included in the S2 rows and mapped to the S2 ports.

As an embodiment, the second sub-signal comprises V layers, V being a positive integer greater than 1; the second matrix is applied to the V layers corresponding to the second reference signal resources.

As one embodiment, the second matrix comprises S2 rows, any one of the S2 rows comprising V elements; the S2 rows correspond one-to-one to the S2 ports; for any given port of the S2 ports, the symbols in the V layers included in the second sub-signal are weighted by the V elements included in the row corresponding to the given port, and then are added to map to the given port.

As an embodiment, the second matrix includes a number of rows equal to the S2.

As an embodiment, the second matrix comprises a number of columns equal to a number of layers of the second sub-signal.

As an embodiment, the second matrix comprises a positive integer number of elements greater than 1.

As an embodiment, any element in the second matrix is a complex number.

As an embodiment, there is one element in the second matrix equal to 0.

As an embodiment, there is a complex number in the second matrix whose element is non-zero.

As an embodiment, any element in the second matrix is a non-zero complex number.

As an embodiment, the moduli of any two non-zero elements in the second matrix are equal.

Example 15

Embodiment 15 illustrates a schematic diagram of a second target codebook and a second codeword according to an embodiment of the present application; as shown in fig. 15. In embodiment 15, the first field in the first signaling indicates a second codeword from a second target codebook if the first signal comprises the second sub-signal, the second codeword being used for determining the second matrix.

For one embodiment, the second target codebook is one of the K3 candidate codebooks.

As an embodiment, the second target codebook is a candidate codebook in which a corresponding rank array of the K3 candidate codebooks includes the target rank.

As one embodiment, the second target codebook is one of the K3 candidate codebooks that satisfies all of the conditions in the sixth set of conditions; the sixth set of conditions comprises: the corresponding rank array comprises one or more of the target rank number, the corresponding port number equal to the S2, the corresponding first set of class parameter values comprising the first parameter value, the corresponding first set of class parameter values comprising the third parameter value, the corresponding second set of class parameter values equal to the value of the fourth higher layer parameter, the corresponding second set of class parameter values equal to the value of the sixth higher layer parameter, the corresponding third set of class parameter values equal to the value of the seventh higher layer parameter, or the corresponding third set of class parameter values equal to the value of the ninth higher layer parameter.

As an embodiment, all conditions in the sixth condition set are satisfied by one and only one of the K3 candidate codebooks.

Example 16

Embodiment 16 illustrates a schematic diagram where a first codeword is used to determine a first matrix according to an embodiment of the present application; as shown in fig. 16. In embodiment 16, the first codeword indicates a first index, the first index being one of a first class of indices, the first index indicating the first matrix.

As an embodiment, the first codeword is used by the first node to determine the first matrix, which is used by the first node for precoding of the first sub-signal.

As one embodiment, the first field in the first signaling indicates that the first codeword is indexed in the first codebook-of-target.

As an embodiment, the first index is a TPMI index corresponding to the first matrix.

As an embodiment, the first field in the first signaling indicates a first layer number, and the first layer number is a positive integer.

As an embodiment, the first codeword indicates the first number of layers.

In one embodiment, the number of layers of the first sub-signal is equal to the first number of layers.

As an embodiment, the number of columns of the first matrix is equal to the first number of layers.

As an embodiment, the first codeword includes the first number of layers and the first index.

As an embodiment, the first codeword consists of the first number of layers and the first index.

As an embodiment, when the first signal includes the second sub-signal, the first field in the first signaling indicates a second index, the second index is a first type index, and the second index indicates the second matrix.

As an embodiment, the second index is a TPMI index corresponding to the second matrix.

For one embodiment, the first codeword indicates the second index.

For one embodiment, the first codeword indicates the first index and the second index.

As an embodiment, the first codeword includes the first number of layers, the first index and the second index.

As an embodiment, the first codeword is composed of the first number of layers, the first index, and the second index.

For one embodiment, the first target codebook is one of the K1 candidate codebooks, and the first codeword is a codeword of a first type.

For one embodiment, the first target codebook is one of the K2 candidate codebooks and the first codeword is a codeword of a second type.

As one embodiment, the second codeword indicates the second index.

As an embodiment, the first field in the first signaling indicates that the second codeword is indexed in the second codebook-of-target.

As an embodiment, the second codeword is a third type codeword.

As one embodiment, the second codeword includes the second index.

For one embodiment, the second codeword consists of the second index.

As one embodiment, the second codeword indicates the first number of layers.

In one embodiment, the number of layers of the second sub-signal is equal to the first number of layers.

As an embodiment, the number of columns of the second matrix is equal to the first number of layers.

As an embodiment, the second codeword is composed of the first layer number and the second index.

As an embodiment, when the first signal includes the second sub-signal, the first codeword indicates the first index and the second index.

As an embodiment, when the first signal includes the second sub-signal, the first field in the first signaling indicates the first codeword and the second codeword, which indicate the first index and the second index, respectively.

As an embodiment, the first field includes a first subfield and a second subfield, the first subfield in the first signaling indicates the first codeword, and the second subfield in the first signaling indicates the second codeword.

As an embodiment, the first subfield in the first signaling indicates the first codeword from the first target codebook, and the second subfield in the first signaling indicates the second codeword from the second target codebook.

As one embodiment, the first subfield consists of the first X1 bits in the first field and the second subfield consists of the last (the first integer-X1) bits in the first field; the X1 is a positive integer less than the first integer.

As a sub-embodiment of the above embodiment, the first integer is equal to the X1 multiplied by 2.

As an embodiment, when the first signal comprises the second sub-signal, the first codeword indicates a first matrix group comprising the first matrix and the second matrix.

As a sub-embodiment of the above embodiment, the first index is a TPMI index corresponding to the first matrix group.

As an embodiment, when the first signal comprises the second sub-signal, the first codeword indicates a third matrix, and the first matrix and the second matrix are sub-matrices of the third matrix, respectively.

As a sub-embodiment of the above embodiment, the first index is a TPMI index corresponding to the third matrix.

As a sub-embodiment of the above embodiment, the number of rows of the third matrix is equal to the sum of the S1 and the S2.

As a sub-embodiment of the above embodiment, the number of columns of the third matrix is equal to the number of layers of the first sub-signal.

As a sub-embodiment of the above embodiment, the first matrix is composed of the first S1 rows of the third matrix, and the second matrix is composed of the last S2 rows of the third matrix.

Example 17

Embodiment 17 illustrates a schematic diagram of a first matrix according to an embodiment of the present application; as shown in fig. 17. In embodiment 17, the first matrix is one of a third set of matrices, the third set of matrices comprising a positive integer number of matrices greater than 1; the third set of matrices is one of Q1 sets of candidate matrices, Q1 is a positive integer greater than 1.

As an embodiment, the first matrix is one of the third set of matrices whose corresponding TPMI is equal to the first index.

As an embodiment, the second matrix is one of a fourth set of matrices, the fourth set of matrices including a positive integer number of matrices greater than 1; the fourth set of matrices is one of the Q1 sets of candidate matrices.

As an embodiment, the second matrix is a matrix in which the corresponding TPMI in the fourth set of matrices is equal to the second index.

As an embodiment, the Q1 candidate matrix sets respectively correspond to Q1 ranks.

For one embodiment, the Q1 candidate matrix sets correspond to Q1 port numbers, respectively.

As an embodiment, the Q1 candidate matrix sets respectively correspond to Q1 parameter values of the third class.

As an embodiment, the third matrix set is a candidate matrix set of the Q1 candidate matrix sets, wherein the corresponding rank number is equal to the number of layers of the first sub-signal, the corresponding port number is equal to the S1, and the corresponding value of the third type parameter is equal to the value of the seventh higher layer parameter.

As an embodiment, the third matrix set is a candidate matrix set of the Q1 candidate matrix sets, wherein the corresponding rank number is equal to the number of layers of the first sub-signal, the corresponding port number is equal to the S1, and the corresponding value of the third type parameter is equal to the value of the eighth higher layer parameter.

As an embodiment, the fourth matrix set is a candidate matrix set of the Q1 candidate matrix sets, wherein the corresponding rank number is equal to the number of layers of the first sub-signal, the corresponding port number is equal to the S2, and the corresponding value of the third type parameter is equal to the value of the seventh higher layer parameter.

As an embodiment, the fourth matrix set is a candidate matrix set of the Q1 candidate matrix sets, wherein the corresponding rank number is equal to the number of layers of the first sub-signal, the corresponding port number is equal to the S2, and the corresponding value of the third type parameter is equal to the value of the ninth higher layer parameter.

For one embodiment, any one of the Q1 candidate matrix sets includes a plurality of precoding matrices.

As an embodiment, any candidate matrix set of the Q1 candidate matrix sets includes all precoding matrices having the same number of rows and columns.

As an embodiment, any candidate matrix set in the Q1 candidate matrix sets includes one Table from Table 6.3.1.5-1 to Table 6.3.1.5-7 of 3GPP TS 38.211.

As an embodiment, the first field in the first signaling indicates the first matrix from the third set of matrices if the first signal includes only the first sub-signal.

As an embodiment, if the first signal includes the first sub-signal and the second sub-signal, the first matrix is one of the third subset of matrices, the third subset of matrices is a subset of the third set of matrices, the third set of matrices includes at least one matrix that does not belong to the third subset of matrices; the first field in the first signaling indicates the first matrix from the third subset of matrices.

As an embodiment, any matrix of the third subset of matrices belongs to the third set of matrices.

As an embodiment, the third subset of matrices includes a number of matrices greater than 1.

As an embodiment, the position of the matrices in the third subset of matrices in the third set of matrices is a default.

As an embodiment, the position of the matrices in the third subset of matrices in the third set of matrices is predefined.

As an embodiment, the position of the matrices in the third subset of matrices in the third set of matrices is configured for higher layer signaling.

As an embodiment, an index of any matrix in the third matrix set in the third subset of matrices belongs to a second index set, and any index in the second index set is a non-negative integer smaller than the number of matrices included in the third matrix set.

As an embodiment, the third subset of matrices consists of all matrices of the third set of matrices whose indices in the third set of matrices belong to the second set of indices.

As one embodiment, the second set of indices is default.

As an embodiment, the second set of indices is predefined.

As an embodiment, the second set of indices is configured for higher layer signaling.

As an embodiment, the second set of indices consists of all non-negative even numbers that are smaller than the number of matrices comprised by the third set of matrices.

As an embodiment, the second set of indices consists of all non-negative odd numbers that are smaller than the number of matrices comprised by the third set of matrices.

As an embodiment, the second matrix is one of a fourth subset of matrices, the fourth subset of matrices being a subset of the fourth set of matrices, the fourth set of matrices including at least one matrix not belonging to the fourth subset of matrices; the first field in the first signaling indicates the second matrix from the fourth subset of matrices.

As an embodiment, any matrix of the fourth subset of matrices belongs to the fourth set of matrices.

As an embodiment, the fourth subset of matrices includes a number of matrices greater than 1.

As an embodiment, the position of the matrices in the fourth subset of matrices in the fourth set of matrices is a default.

As an embodiment, the position of the matrices in the fourth subset of matrices in the fourth set of matrices is predefined.

As an embodiment, the position of the matrices in the fourth subset of matrices in the fourth set of matrices is configured for higher layer signaling.

As an embodiment, an index of any matrix in the fourth matrix set in the fourth matrix subset belongs to a third index set, and any index in the third index set is a non-negative integer smaller than the number of matrices included in the fourth matrix set.

As an embodiment, the fourth subset of matrices consists of all matrices of the fourth set of matrices whose indices in the fourth set of matrices belong to the third set of indices.

As one embodiment, the third set of indices is default.

As an embodiment, the third set of indices is predefined.

As an embodiment, the third set of indices is configured for higher layer signaling.

As an embodiment, the third set of indices consists of all non-negative even numbers which are smaller than the number of matrices comprised by the fourth set of matrices.

As an embodiment, the third set of indices consists of all non-negative odd numbers smaller than the number of matrices comprised by the fourth set of matrices.

Example 18

Embodiment 18 illustrates a schematic diagram of a first set of matrices and a second set of matrices according to an embodiment of the present application; as shown in fig. 18. In embodiment 18, the second set of matrices is a subset of the first set of matrices, and there is one matrix in the first set of matrices that does not belong to the second set of matrices.

As an embodiment, the first reference rank number is any positive integer not greater than the second rank number.

As an embodiment, the first reference rank is a positive integer not greater than the third rank.

As an embodiment, the first reference rank is any positive integer not greater than the third rank.

As an embodiment, any second-type codeword in the second codebook indicates two first-type indices, and the second matrix set is composed of matrices in which all columns in a first matrix indicated by the second-type codeword in the second codebook are equal to the first reference rank number.

As an embodiment, any second type codeword in the second codebook indicates two first type indexes, and the second matrix set is composed of matrices in which all columns in a second matrix indicated by the second type codeword in the second codebook are equal to the first reference rank number.

As an embodiment, any second-class codeword in the second codebook indicates two first-class indexes, and the second matrix set is composed of matrices, two by two, of which all the numbers of columns in a first matrix indicated by the second-class codeword in the second codebook are equal to the first reference rank number.

As an embodiment, any second-class codeword in the second codebook indicates two first-class indexes, and the second matrix set is composed of matrices, two by two, of which all the numbers of columns in a second matrix indicated by the second-class codeword in the second codebook are equal to the first reference rank number.

As an embodiment, the first matrix indicated by any given second-type codeword in the second codebook refers to: a matrix indicated by a first one of two first-class indices indicated by the given second-class codeword.

As an embodiment, the second matrix indicated by any given second-type codeword in the second codebook refers to: a matrix indicated by a second one of the two first-type indices indicated by the given second-type codeword.

As an embodiment, any second-type codeword in the second codebook indicates a first-type index, and the second matrix set is composed of matrices in which all columns in the matrices indicated by the second-type codeword in the second codebook are equal to the first reference rank number.

As one embodiment, the first set of matrices includes a plurality of matrices and the second set of matrices includes a plurality of matrices.

As an embodiment, there are no two identical matrices in the first set of matrices.

As an embodiment, there are no two identical matrices in the second set of matrices.

As an embodiment, the number of matrices included in the first set of matrices is equal to the number of first type codewords of which the number of indicated layers included in the first codebook is equal to the first reference rank number.

As an embodiment, the second set of matrices includes a number of matrices equal to the number of indicated layers included in the second codebook, which is equal to the number of second-type codewords of the first reference rank number.

As an embodiment, the number of matrices included in the second matrix set is smaller than the number of second-type codewords of which the number of indicated layers included in the second codebook is equal to the first reference rank number.

As an embodiment, any second-class codeword in the second codebook indicates two first-class indices, and the number of matrices included in the second matrix set is smaller than the number of second-class codewords whose indicated number of layers included in the second codebook is equal to the first reference rank number.

As an embodiment, any second class codeword in the second codebook indicates two first class indices; the first matrix in the second codebook where there are two indications of the second class of codeword is the same.

As an embodiment, any second class codeword in the second codebook indicates two first class indices; the presence of two second matrices indicated by the second class of code words in the second codebook is identical.

As an embodiment, any matrix in the second set of matrices belongs to the first set of matrices.

As an embodiment, the position of a matrix in the second set of matrices in the first set of matrices is default.

As an embodiment, the position of a matrix of the second set of matrices in the first set of matrices is predefined.

As an embodiment, the position of a matrix in the second set of matrices in the first set of matrices is configured for higher layer signaling.

As an embodiment, the position of the matrix in the second set of matrices in the first set of matrices is RRC signaling configured.

As an embodiment, an index of any matrix in the second matrix set in the first matrix set belongs to a first index set, and any index in the first index set is a non-negative integer smaller than the number of matrices included in the first matrix set.

As an embodiment, the second set of matrices consists of all matrices of the first set of matrices whose indices in the first set of matrices belong to the first set of indices.

As one embodiment, the first set of indices is default.

As an embodiment, the first set of indices is predefined.

As an embodiment, the first set of indices is configured for higher layer signaling.

As an embodiment, the first set of indices is RRC signaling configured.

As an embodiment, the first set of indices consists of all non-negative even numbers which are smaller than the number of matrices comprised by the first set of matrices.

As an embodiment, the first set of indices consists of all non-negative odd numbers which are smaller than the number of matrices comprised by the first set of matrices.

As an embodiment, a fifth set of matrices consists of matrices in which all columns in the matrices indicated by the third class of codewords in the third codebook are equal to the first reference rank number, and the fifth set of matrices is a subset of the first set of matrices, and there is one matrix in the first set of matrices that does not belong to the fifth set of matrices.

As an embodiment, an index of any matrix in the fifth set of matrices in the first set of matrices belongs to a fourth set of indices, and any index in the fourth set of indices is a non-negative integer less than the number of matrices included in the first set of matrices.

As an embodiment, the fourth set of indices is default.

As an embodiment, the fourth set of indices is predefined.

As an embodiment, the fourth set of indices is configured for higher layer signaling.

Example 19

Embodiment 19 illustrates a schematic diagram of a first information block according to an embodiment of the present application; as shown in fig. 19. In embodiment 19, the first information block is used to determine the first rank number.

As an embodiment, the first information block is carried by higher layer (higher layer) signaling.

As an embodiment, the first information block is carried by RRC signaling.

As an embodiment, the first information block is carried by MAC CE signaling.

As an embodiment, the first information block includes information in all or part of a Field (Field) in one IE.

As an embodiment, the first information block includes information in a maxRank or maxrankforddci-Format 0-2-r16 domain of PUSCH-Config IE.

As one embodiment, the first information block indicates the first rank number.

As one embodiment, the first information block includes a first bit string whose value indicates the first rank number.

As a sub-embodiment of the above embodiment, the first rank number is equal to a value of the first bit string.

As an embodiment, a second information block is used for determining the second rank number.

As an embodiment, the second information block is carried by higher layer (higher layer) signaling.

As an embodiment, the second information block is carried by RRC signaling.

As an embodiment, the second information block is carried by MAC CE signaling.

As an embodiment, the second information block includes information in all or part of a Field (Field) in one IE.

As one embodiment, the second information block is transmitted on a PDSCH.

As an embodiment, the second information block indicates the second rank number.

As an embodiment, the second information block comprises a second bit string, a value of the second bit string indicating the second rank number.

As a sub-implementation of the above embodiment, the second rank number is equal to a value of the second bit string.

As an embodiment, the second information block and the first information block respectively include information in different IEs.

As an embodiment, the second information block and the first information block respectively include information of different fields of the same IE.

As an embodiment, the second information block and the first information block are transmitted on different physical layer channels, respectively.

Example 20

Embodiment 20 illustrates a block diagram of a processing apparatus for use in a first node device according to an embodiment of the present application; as shown in fig. 20. In fig. 20, a processing means 2000 in a first node device comprises a first receiver 2001 and a first transmitter 2002.

In embodiment 20, the first receiver 2001 receives the first signaling; the first transmitter 2002 transmits a first signal.

In embodiment 20, the first signaling is used to determine scheduling information of the first signal; the first signaling comprises a first field comprising at least one binary bit, the first field comprising a number of binary bits equal to a first integer; a first rank number is used to determine a first codebook, the first codebook comprising at least one codeword of a first type, the first codebook comprising a number of codewords of the first type used to determine a first candidate integer; a second rank is used to determine a second codebook, the second codebook comprising at least one codeword of a second type, the second codebook comprising a number of codewords of the second type used to determine a second candidate integer; the first candidate integer and the second candidate integer are used together to determine the first integer; the first rank number is configurable; the second rank is default or configurable and the second rank and the first rank are configured by different higher layer parameters, respectively; the first field in the first signaling is used to determine a precoding of the first signal.

As one embodiment, the first signal includes a first sub-signal; third information is used to determine whether the first signal includes a second sub-signal; the second sub-signal and the first sub-signal correspond to different spatial relationships; the first field in the first signaling indicates a first codeword from a first codebook of targets, the first codeword being used to determine a first matrix used for precoding of the first sub-signal; the third information is used to determine the first codebook-of-target.

As an embodiment, any first-type codeword in the first codebook indicates one first-type index, and any second-type codeword in the second codebook indicates two first-type indices; one of the first class indices indicates one matrix.

As an embodiment, the second rank is used to determine a third codebook, the third codebook comprises at least one codeword of a third type, the number of codewords of the second type comprised by the second codebook and the number of codewords of the third type comprised by the third codebook are jointly used to determine the second candidate integer; any first-class codeword in the first codebook indicates a first-class index, any second-class codeword in the second codebook indicates a first-class index, and any third-class codeword in the third codebook indicates a first-class index; one of the first class indices indicates one matrix.

As an embodiment, the first codebook is one of K1 candidate codebooks, the second codebook is one of K2 candidate codebooks, and K1 and K2 are positive integers greater than 1, respectively; the K1 candidate codebooks respectively correspond to K1 rank arrays, and the K2 candidate codebooks respectively correspond to K2 rank arrays; the first rank is used to determine the first codebook from the K1 candidate codebooks, the second rank is used to determine the second codebook from the K2 candidate codebooks; a rank array comprises at least one rank number.

As an embodiment, the first reference rank number is a positive integer not greater than the second rank number; the first matrix set consists of matrixes with all columns equal to the first reference rank number in the matrixes indicated by the first type of code words in the first codebook; any second-type codeword in the second codebook indicates two first-type indexes and a second matrix set is composed of matrices in which all the numbers of columns in a first matrix indicated by the second-type codeword in the second codebook are equal to the first reference rank number, or any second-type codeword in the second codebook indicates two first-type indexes and a second matrix set is composed of matrices in which all the numbers of columns in a second matrix indicated by the second-type codeword in the second codebook are equal to the first reference rank number, or any second-type codeword in the second codebook indicates one first-type index and a second matrix set is composed of matrices in which all the numbers of columns in a matrix indicated by the second-type codeword in the second codebook are equal to the first reference rank number; the second set of matrices is a subset of the first set of matrices, and there is one matrix in the first set of matrices that does not belong to the second set of matrices.

For one embodiment, the first receiver receives a first information block; wherein the first information block is used to determine the first rank number.

As an embodiment, the first node device is a user equipment.

As an embodiment, the first node device is a relay node device.

For one embodiment, the first receiver 2001 includes at least one of { antenna 452, receiver 454, receive processor 456, multi-antenna receive processor 458, controller/processor 459, memory 460, data source 467} in embodiment 4.

For one embodiment, the first transmitter 2002 comprises at least one of the { antenna 452, transmitter 454, transmit processor 468, multi-antenna transmit processor 457, controller/processor 459, memory 460, data source 467} of embodiment 4.

Example 21

Embodiment 21 is a block diagram illustrating a configuration of a processing apparatus used in a second node device according to an embodiment of the present application; as shown in fig. 21. In fig. 21, the processing means 2100 in the second node device comprises a second transmitter 2101 and a second receiver 2102.

In embodiment 21, the second transmitter 2101 transmits first signaling; the second receiver 2102 receives the first signal.

In embodiment 21, the first signaling is used to determine scheduling information of the first signal; the first signaling comprises a first field comprising at least one binary bit, the first field comprising a number of binary bits equal to a first integer; a first rank number is used to determine a first codebook, the first codebook comprising at least one codeword of a first type, the first codebook comprising a number of codewords of the first type used to determine a first candidate integer; a second rank is used to determine a second codebook, the second codebook comprising at least one codeword of a second type, the second codebook comprising a number of codewords of the second type used to determine a second candidate integer; the first candidate integer and the second candidate integer are used together to determine the first integer; the first rank number is configurable; the second rank is default or configurable and the second rank and the first rank are configured by different higher layer parameters, respectively; the first field in the first signaling is used to determine a precoding of the first signal.

As one embodiment, the first signal includes a first sub-signal; third information is used to determine whether the first signal includes a second sub-signal; the second sub-signal and the first sub-signal correspond to different spatial relationships; the first field in the first signaling indicates a first codeword from a first target codebook, the first codeword being used to determine a first matrix used for precoding of the first sub-signal; the third information is used to determine the first codebook-of-target.

As an embodiment, the second rank is used to determine a third codebook, the third codebook comprises at least one codeword of a third type, the number of codewords of the second type comprised by the second codebook and the number of codewords of the third type comprised by the third codebook are jointly used to determine the second candidate integer; any first-class codeword in the first codebook indicates a first-class index, any second-class codeword in the second codebook indicates a first-class index, and any third-class codeword in the third codebook indicates a first-class index; one of the first type indices indicates one matrix.

As an embodiment, the second transmitter transmits a first information block; wherein the first information block is used to determine the first rank number.

As an embodiment, the second node device is a base station device.

As an embodiment, the second node device is a user equipment.

As an embodiment, the second node device is a relay node device.

For one embodiment, the second transmitter 2101 may comprise at least one of the antennas 420, transmitter 418, transmit processor 416, multi-antenna transmit processor 471, controller/processor 475, and memory 476 of embodiment 4.

For one embodiment, the second receiver 2102 includes at least one of { antenna 420, receiver 418, reception processor 470, multi-antenna reception processor 472, controller/processor 475, memory 476} in embodiment 4.

It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented by using one or more integrated circuits. Accordingly, the module units in the above embodiments may be implemented in a hardware form, or may be implemented in a form of software functional modules, and the present application is not limited to any specific form of combination of software and hardware. The user equipment, the terminal and the UE in the present application include, but are not limited to, an unmanned aerial vehicle, a Communication module on the unmanned aerial vehicle, a remote control plane, an aircraft, a small airplane, a mobile phone, a tablet computer, a notebook, an on-board Communication device, a vehicle, an RSU, a wireless sensor, an internet access card, an internet of things terminal, an RFID terminal, an NB-IOT terminal, an MTC (Machine Type Communication) terminal, an eMTC (enhanced MTC) terminal, a data card, an internet access card, an on-board Communication device, a low-cost mobile phone, a low-cost tablet computer and other wireless Communication devices. The base station or the system device in the present application includes, but is not limited to, a macro cell base station, a micro cell base station, a small cell base station, a home base station, a relay base station, an eNB, a gbb, a TRP (Transmitter Receiver Point), a GNSS, a relay satellite, a satellite base station, an air base station, an RSU (Road Side Unit), an unmanned aerial vehicle, a testing device, and a wireless communication device such as a transceiver device or a signaling tester simulating part of functions of a base station.

The above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A first node device for wireless communication, comprising:

a first receiver receiving a first signaling;

a first transmitter that transmits a first signal;

2. The first node apparatus of claim 1, wherein the first signal comprises a first sub-signal; third information is used to determine whether the first signal includes a second sub-signal; the second sub-signal and the first sub-signal correspond to different spatial relationships; the first field in the first signaling indicates a first codeword from a first codebook of targets, the first codeword being used to determine a first matrix used for precoding of the first sub-signal; the third information is used to determine the first codebook-of-target.

3. The first node device of claim 1 or 2, wherein any first type codeword in the first codebook indicates one first type index, and any second type codeword in the second codebook indicates two first type indices; one of the first class indices indicates one matrix.

4. The first node device of claim 1 or 2, wherein the second rank is used to determine a third codebook, wherein the third codebook comprises at least one codeword of a third type, and wherein the number of codewords of the second type comprised by the second codebook and the number of codewords of the third type comprised by the third codebook are together used to determine the second candidate integer; any first-class codeword in the first codebook indicates a first-class index, any second-class codeword in the second codebook indicates a first-class index, and any third-class codeword in the third codebook indicates a first-class index; one of the first class indices indicates one matrix.

5. The first node device of any of claims 1-4, wherein the first codebook is one of K1 candidate codebooks, the second codebook is one of K2 candidate codebooks, K1 and K2 are each positive integers greater than 1; the K1 candidate codebooks respectively correspond to K1 rank arrays, and the K2 candidate codebooks respectively correspond to K2 rank arrays; the first rank is used to determine the first codebook from the K1 candidate codebooks, the second rank is used to determine the second codebook from the K2 candidate codebooks; a rank array comprises at least one rank number.

6. The first node device of any of claims 1-5, wherein a first reference rank is a positive integer no greater than the second rank; the first matrix set consists of matrixes with all columns equal to the first reference rank number in the matrixes indicated by the first type of code words in the first codebook; any second-type codeword in the second codebook indicates two first-type indexes and a second matrix set is composed of matrices in which all the numbers of columns in a first matrix indicated by the second-type codeword in the second codebook are equal to the first reference rank number, or any second-type codeword in the second codebook indicates two first-type indexes and a second matrix set is composed of matrices in which all the numbers of columns in a second matrix indicated by the second-type codeword in the second codebook are equal to the first reference rank number, or any second-type codeword in the second codebook indicates one first-type index and a second matrix set is composed of matrices in which all the numbers of columns in a matrix indicated by the second-type codeword in the second codebook are equal to the first reference rank number; the second set of matrices is a subset of the first set of matrices, and there is one matrix in the first set of matrices that does not belong to the second set of matrices.

7. The first node device of any of claims 1-6, wherein the first receiver receives a first information block; wherein the first information block is used to determine the first rank number.

8. A second node device for wireless communication, comprising: