WO2023131154A1

WO2023131154A1 - Method and device used in node for wireless communication

Info

Publication number: WO2023131154A1
Application number: PCT/CN2023/070309
Authority: WO
Inventors: 吴克颖; 张晓博
Original assignee: 上海朗帛通信技术有限公司
Priority date: 2022-01-07
Filing date: 2023-01-04
Publication date: 2023-07-13

Abstract

The present application discloses a method and device used in a node for wireless communication. The method comprises: a first node receiving first signaling; and sending a first signal. The first signaling indicates scheduling information of the first signal; the first signaling comprises a first domain, a second domain, and a third domain; the first domain indicates the relationship between the second and third domains and first and second reference signal resource sets; the first signal carries at least one code word; the first signal comprises v layers; the at least one code word is mapped to the v layers; the first signaling indicates successively arranged first port sequences; the first port sequences comprise a first CDM group and a second CDM group; and whether a mapping mode of the at least one code word to the v layers is related to the first port sequences is related to the first domain of the first signaling. The method solves the problem of flexible switching between multi-TRP transmission and single-TRP transmission.

Description

A method and device used in a node for wireless communication

technical field

The present application relates to a transmission method and device in a wireless communication system, especially a wireless signal transmission method and device in a wireless communication system supporting a cellular network.

Background technique

Multi-antenna technology is a key technology in 3GPP (3rd Generation Partner Project, third generation partnership project) LTE (Long-term Evolution, long-term evolution) system and NR (New Radio, 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, User Equipment). Multiple antennas use beamforming to form beams pointing in a specific direction to improve communication quality. The degrees of freedom provided by multiple antenna systems can be used to improve transmission reliability and/or throughput. When multiple antennas belong to multiple TRPs (Transmitter Receiver Points)/panels (antenna panels), additional diversity gain can be obtained by utilizing the spatial differences between different TRPs/panels. In NRR (release) 17, uplink transmission based on multiple beams/TRP/panel is supported to improve the reliability of uplink transmission. In R17, a UE can be configured with multiple SRS (Sounding Reference Signal, Sounding Reference Signal) resource sets based on codebook (codebook) or non-codebook (non-codebook), and different SRS resource sets correspond to different beams/TRP/ The panel is used to realize the uplink transmission of multi-beam/TRP/panel.

Contents of the invention

The uplink transmission based on multiple beams/TRP/panel can adopt the method of time division multiplexing, as in R17, or the method of space division multiplexing. Compared with time-division multiplexing, the implementation of space-division multiplexing is more conducive to improving throughput, especially for users with better channel quality. The applicant has found through research that there are obvious differences between the channel qualities corresponding to different beams, and proper use of this difference will further improve system performance. In order to take advantage of this difference, the transmission parameters of the signal transmitted on each beam, such as MCS, can be selected according to the actual channel quality of each beam. In space division multiplexing, different beams can be used to transmit different codewords and the transmission parameters of each codeword can be selected according to the channel quality of each beam. In this case, how to map between codewords and layers is a problem to be solved. How to flexibly switch between single-beam transmission and multi-beam transmission is another problem to be solved.

Aiming at the above problems, the present application discloses a solution. It should be noted that although the above description uses cellular network, uplink transmission and space division multiplexing as examples, this application is also applicable to other scenarios such as sidelink (Sidelink) transmission, downlink transmission and other multiplexing methods, and achieve similar Technical effects in cellular network, uplink transmission and space division multiplexing. In addition, adopting a unified solution for different scenarios (including but not limited to cellular network, secondary link, uplink transmission, downlink transmission, space division multiplexing and other multiplexing methods) also helps to reduce hardware complexity and cost. In the case of no conflict, the embodiments and the features of the embodiments in the first node of the present application can be applied to the second node, and vice versa. In the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

As an example, the explanation of the term (Terminology) in this application refers to the definition of the TS36 series of standard protocols of 3GPP.

As an example, the explanation of terms in this application refers to the definitions of the TS38 series of standard protocols of 3GPP.

As an example, the explanation of terms in this application refers to the definitions of the TS37 series of standard protocols of 3GPP.

As an example, the interpretation of terms in this application refers to the definition of the specification protocol of IEEE (Institute of Electrical and Electronics Engineers, Institute of Electrical and Electronics Engineers).

The present application discloses a method used in a first node of wireless communication, which is characterized in that it includes:

receiving first signaling, where the first signaling indicates scheduling information of a first signal;

sending said first signal;

Wherein, the first signaling includes a first field, a second field and a third field; the first field in the first signaling indicates the second field and the third field in the first signaling The relationship between the third field in the first signaling and the first set of reference signal resources and the second set of reference signal resources; the first signal carries at least one codeword; the first signal includes v layer, the v is a positive integer greater than 1; the at least one codeword is mapped to the v layers; the first signaling includes a first bit group, and the first bit in the first signaling A bit group indicates a first port sequence arranged in sequence; the first port sequence includes v DMRS ports; the first port sequence includes a first CDM group and a second CDM group, and the first CDM group and the The second CDM group respectively includes at least one DMRS port in the v DMRS ports; whether the mapping manner of the at least one codeword to the v layers is related to the first port sequence is related to the first signaling related to the first domain in .

As an embodiment, the problem to be solved in this application includes: how to support flexible switching between uplink multi-beam/TRP/pane transmission and single-beam/TRP/pane transmission, the above method uses all This problem is solved by establishing a relationship between the first domain and the mapping manner of the at least one codeword to the v layers.

As an embodiment, the problem to be solved in this application includes: the mapping relationship between codewords and layers in uplink multi-beam/TRP/pane transmission, the above method is through the at least one codeword to the v layers Establishing a relationship between the mapping mode and the first port sequence solves this problem.

As an embodiment, the characteristics of the above method include: the first field in the first signaling is used to indicate whether the transmission of the first signal is based on one reference signal resource set or two reference signal resource sets, That is, based on single beam/TRP/pane or multi-beam/TRP/pane.

As an embodiment, the benefits of the above method include: solving the flexible switching between multi-beam/TRP/pane transmission and single-beam/TRP/pane transmission, and the inter-codeword and layer in multi-beam/TRP/pane transmission Mapping problem.

As an embodiment, the advantages of the above method include: supporting the realization of uplink multi-beam/TRP/pane transmission in a space division multiplexing manner, and improving the throughput of uplink transmission.

As an embodiment, the benefits of the above method include: in uplink multi-beam/TRP/pane transmission, it supports flexible selection of transmission parameters according to the channel quality of each beam/TRP/pane, optimizing the performance of multi-beam/TRP/pane transmission .

According to one aspect of the present application, it is characterized in that the second field in the first signaling and the third field in the first signaling are related to the first reference signal resource set and the The relationship between the second reference signal resource sets is one of a first candidate relationship, a second candidate relationship or a third candidate relationship; the first field in the first signaling indicates the first candidate relationship, one of the second candidate relationship or the third candidate relationship; the first candidate relationship is that the second field in the first signaling is associated with the first reference signal resource set And the third field in the first signaling is reserved, the second candidate relationship is that the second field in the first signaling is associated with the second reference signal resource set and The third field in the first signaling is reserved, and the third candidate relationship is the second field in the first signaling and the third field in the first signaling domains are respectively associated with the first set of reference signal resources and the second set of reference signal resources.

According to one aspect of the present application, it is characterized in that when the first field in the first signaling indicates the second field in the first signaling and the When the third field is respectively associated with the first reference signal resource set and the second reference signal resource set, the mapping manner of the at least one codeword to the v layers is the same as the first port sequence relevant; when the first field in the first signaling indicates that one of the second field in the first signaling and the third field in the first signaling is reserved When , the mapping manner of the at least one codeword to the v layers has nothing to do with the first port sequence.

As an embodiment, the characteristics of the above method include: when the first field in the first signaling indicates that the transmission of the first signal is based on a set of reference signal resources, that is, based on a single beam/TRP/pane When , the mapping method of the at least one codeword to the v layers adopts the existing technology, that is, it has nothing to do with the first port sequence; when the first field in the first signaling indicates that the first When the transmission of a signal is based on two sets of reference signal resources, that is, based on multi-beam/TRP/pane, the mapping manner of the at least one codeword to the v layers is related to the first port sequence.

According to one aspect of the present application, it is characterized in that the number of DMRS ports included in the first CDM group is equal to the first number of ports, and the number of DMRS ports included in the second CDM group is equal to the second number of ports; when the The first field in the first signaling indicates that the second field in the first signaling and the third field in the first signaling are respectively related to the first reference signal resource set and When the second reference signal resource set is associated, the at least one codeword includes a first codeword and a second codeword; the first codeword is mapped to a first layer group among the v layers, The second codeword is mapped to a second layer group in the v layers; the first layer group and the second layer group respectively include at least one layer in the v layers; The number of layers included in the layer group is equal to the first number of ports, and the number of layers included in the second layer group is equal to the second number of ports.

As an embodiment, the advantages of the above method include: ensuring that the number of layers mapped to each codeword is consistent with the corresponding number of DMRS ports.

According to one aspect of the present application, it is characterized in that when the first field in the first signaling indicates the second field in the first signaling and the When the third field is respectively associated with the first reference signal resource set and the second reference signal resource set, the at least one codeword includes a first codeword and a second codeword; the first codeword is Mapped to the first layer group in the v layers, the second codeword is mapped to the second layer group in the v layers; the first layer group and the second layer group respectively include At least one layer in the v layers; the first layer group includes which or which layer in the v layers and the position of the DMRS port in the first CDM group in the first port sequence In relation, which or which layers of the v layers are included in the second layer group is related to the positions of the DMRS ports in the second CDM group in the first port sequence.

As an embodiment, the advantages of the above method include: ensuring that the position of the layer mapped by each codeword is consistent with the position of the corresponding DMRS port.

According to one aspect of the present application, it is characterized in that when the first field in the first signaling indicates the second field in the first signaling and the When the third field is respectively associated with the first reference signal resource set and the second reference signal resource set, at least one reference signal resource in the first reference signal resource set is used to determine the first CDM The spatial relationship of the group, at least one reference signal resource in the second set of reference signal resources is used to determine the spatial relationship of the second CDM group.

As an embodiment, the advantages of the above method include: ensuring that each codeword and corresponding DMRS port are mapped to the same antenna port.

According to one aspect of the present application, it is characterized in that the first port sequence is a port sequence in the target port sequence list; the target port sequence list is one of K candidate port sequence lists, and K is greater than 1 A positive integer; which one of the K candidate port sequence lists is related to the first field in the first signaling.

As an embodiment, the advantages of the above method include: dynamically selecting a port sequence table according to requirements, reducing the number of port sequences included in each port sequence table, and reducing corresponding DCI overhead.

According to an aspect of the present application, it is characterized in that the first node includes a user equipment.

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

The present application discloses a method used in a second node of wireless communication, which is characterized in that it includes:

sending first signaling, where the first signaling indicates scheduling information of the first signal;

receiving the first signal;

Wherein, the first signaling includes a first field, a second field and a third field; the first field in the first signaling indicates the second field and the third field in the first signaling The relationship between the third field in the first signaling and the first set of reference signal resources and the second set of reference signal resources; the first signal carries at least one codeword; the first signal includes v layer, the v is a positive integer greater than 1; the at least one codeword is mapped to the v layers; the first signaling includes a first bit group, and the first bit in the first signaling A bit group indicates a first port sequence arranged in sequence; the first port sequence includes v DMRS ports; the first port sequence includes a first CDM group and a second CDM group, and the first CDM group and the The second CDM group respectively includes at least one DMRS port in the v DMRS ports; whether the mapping method of the at least one codeword to the v layers is related to the first port sequence and the first signaling related to the first domain in .

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

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

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

The present application discloses a first node device used for wireless communication, which is characterized in that it includes:

The first receiver receives first signaling, where the first signaling indicates scheduling information of the first signal;

a first transmitter, transmitting the first signal;

The present application discloses a second node device used for wireless communication, which is characterized in that it includes:

a second transmitter, sending first signaling, where the first signaling indicates scheduling information of the first signal;

a second receiver, receiving the first signal;

As an example, compared with traditional solutions, this application has the following advantages:

It solves the problem of flexible switching between multi-beam/TRP/pane transmission and single-beam/TRP/pane transmission, as well as the mapping relationship between codewords and layers in multi-beam/TRP/pane transmission.

It supports uplink multi-beam/TRP/pane transmission in the way of space division multiplexing, which improves the throughput of uplink transmission.

In uplink multi-beam/TRP/pane transmission, different codewords are transmitted on different beams/TRP/pane, which facilitates the flexible selection of transmission parameters according to the channel quality of each beam/TRP/pane, and optimizes multi-beam/TRP/pane transmission performance.

In uplink multi-beam/TRP/pane transmission, the consistency between the number of layers mapped by each codeword and the corresponding number of DMRS ports is guaranteed.

In the uplink multi-beam/TRP/pane transmission, it is guaranteed that each codeword and corresponding DMRS are mapped to the antenna port corresponding to the corresponding beam/TRP/pane.

Description of drawings

Other characteristics, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 shows a flowchart of first signaling and a first signal according to an embodiment of the present application;

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

FIG. 3 shows a schematic diagram of an embodiment of a wireless protocol architecture of a user plane and a 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 present application;

Figure 5 shows a flow chart of transmission according to one embodiment of the present application;

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

Fig. 7 shows the relationship between the second field in the first signaling and the third field in the first signaling and the first set of reference signal resources and the second set of reference signal resources according to an embodiment of the present application schematic diagram;

FIG. 8 shows a schematic diagram of associating a field in the first signaling with a set of reference signal resources according to an embodiment of the present application;

FIG. 9 shows a schematic diagram of first signaling according to an embodiment of the present application;

FIG. 10 shows a schematic diagram of first signaling according to an embodiment of the present application;

FIG. 11 shows a schematic diagram of whether the mapping manner of the at least one codeword to v layers is related to the first port sequence and the first field in the first signaling according to an embodiment of the present application;

Fig. 12 shows a schematic diagram of the mapping of the at least one codeword to v layers according to an embodiment of the present application;

Fig. 13 shows a schematic diagram of the mapping of the at least one codeword to v layers according to an embodiment of the present application;

FIG. 14 shows a schematic diagram of the mapping manner of the at least one codeword to v layers and the first port sequence according to an embodiment of the present application;

Fig. 15 shows a schematic diagram of mapping of the first layer group and the second layer group to antenna ports according to an embodiment of the present application;

FIG. 16 shows a schematic diagram of the mapping of the first layer group and the second layer group to antenna ports according to an embodiment of the present application;

FIG. 17 shows a schematic diagram of the mapping manner of the at least one codeword to v layers and the first port sequence according to an embodiment of the present application;

Fig. 18 shows a schematic diagram of the spatial relationship of the first CDM group and the spatial relationship of the second CDM group according to an embodiment of the present application;

FIG. 19 shows a schematic diagram of which of the K candidate port sequence lists the target port sequence table is related to the first field in the first signaling according to an embodiment of the present application;

Fig. 20 shows a structural block diagram of a processing device used in a first node device according to an embodiment of the present application;

Fig. 21 shows a structural block diagram of a processing device used in a second node device according to an embodiment of the present application.

Detailed ways

The technical solution of the present application will be further described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily.

Example 1

Embodiment 1 illustrates a flowchart of the first signaling and the first signal according to an embodiment of the present application, as shown in FIG. 1 . In 100 shown in FIG. 1, each box represents a step. In particular, the order of the steps in the blocks does not represent a specific chronological relationship between the various steps.

In Embodiment 1, the first node in this application receives the first signaling in step 101; and sends the first signal in step 102. Wherein, the first signaling indicates the scheduling information of the first signal; the first signaling includes a first field, a second field and a third field; the first field in the first signaling indicating the relationship between the second field in the first signaling and the third field in the first signaling and the first reference signal resource set and the second reference signal resource set; the first A signal carries at least one codeword; the first signal includes v layers, and v is a positive integer greater than 1; the at least one codeword is mapped to the v layers; the first signaling includes The first bit group, the first bit group in the first signaling indicates the first port sequence arranged in sequence; the first port sequence includes v DMRS ports; the first port sequence includes the first CDM group and a second CDM group, the first CDM group and the second CDM group respectively include at least one DMRS port in the v DMRS ports; the mapping method of the at least one codeword to the v layers Whether it is related to the first port sequence is related to the first field in the first signaling.

As an embodiment, the first node is configured with a higher layer parameter indicating that two-codeword transmission is enabled (enabled).

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

As an embodiment, the first signaling includes dynamic signaling.

As an embodiment, the first signaling includes Layer 1 (L1) signaling.

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

As an embodiment, the first signaling is a DCI.

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

As an embodiment, the first signaling includes DCI for configuring an uplink grant (configured UpLink Grant) scheduling activation (scheduing activation).

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

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

As an embodiment, the scheduling information includes time domain resources, frequency domain resources, MCS (Modulation and Coding Scheme, modulation and coding scheme), DMRS (DeModulation Reference Signals, demodulation reference signal) port (port), HARQ (Hybrid Automatic One or more of Repeat request) process number (process number), RV (Redundancy version), NDI (New data indicator), TCI (Transmission Configuration Indicator) status or SRI (Sounding reference signal Resource Indicator).

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

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

As an embodiment, the first signaling explicitly indicates a part of the scheduling information of the first signal, and implicitly indicates another part of the scheduling information of the first signal.

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

As an embodiment, the first field, the second field and the third field respectively include at least one bit.

As an embodiment, the first domain, the second domain and the third domain respectively include at least one domain in DCI.

As an embodiment, the first field, the second field and the third field respectively include all or part of bits in at least one field in the DCI.

As an embodiment, the first domain, the second domain and the third domain are respectively a domain in the DCI.

As an embodiment, the first field includes the SRS resource set indicator field in the DCI.

As an embodiment, the number of bits included in the first field is equal to two.

As an embodiment, the first field in the first signaling is used to indicate dynamic switching between the first reference signal resource set and the second reference signal resource set.

As an embodiment, the first field in the first signaling is used to indicate dynamic switching between uplink transmission based on a single SRS (Sounding Reference Signal) resource set and uplink transmission based on multiple SRS resource sets .

As an embodiment, the second field includes an SRS resource indicator field in the DCI.

As an embodiment, the second field includes a Precoding information and number of layers field in the DCI.

As an embodiment, the second field includes the first SRS resource indicator field in the DCI.

As an embodiment, the second field includes the first Precoding information and number of layers field in the DCI.

As an embodiment, the third field includes a Second SRS resource indicator field in the DCI.

As an embodiment, the third field includes a Second Precoding information field in the DCI.

As an embodiment, the third field includes information in the Second SRS resource indicator field in the DCI.

As an embodiment, the third field includes information in the Second Precoding information field in the DCI.

As an embodiment, the third field includes the second SRS resource indicator field in the DCI.

As an embodiment, the third field includes the second Precoding information and number of layers field in the DCI.

As an embodiment, the second field indicates at least one SRI, and the third field indicates at least one SRI.

As an embodiment, the second field indicates a TPMI (Transmitted Precoding Matrix Indicator, transmitting precoding matrix identifier), and the third field indicates a TPMI.

As an embodiment, the second field indicates a TPMI and a number of layers (number of layers), and the third field indicates a TPMI and a number of layers.

Typically, the position of the second field in the first signaling is before the third field.

Typically, the first reference signal resource set includes at least one reference signal resource.

Typically, any reference signal resource included in the first reference signal resource set includes one SRS resource.

Typically, any reference signal resource included in the first reference signal resource set is an SRS resource.

Typically, the first reference signal resource set includes one SRS resource set.

Typically, the first set of reference signal resources is a set of SRS resources.

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

Typically, the second reference signal resource set includes at least one reference signal resource.

Typically, any reference signal resource included in the second reference signal resource set includes one SRS resource.

Typically, any reference signal resource included in the second reference signal resource set is an SRS resource.

Typically, the second reference signal resource set includes one SRS resource set.

Typically, the second reference signal resource set is a SRS resource set.

As an embodiment, the second reference signal resource set is an SRS resource.

As an embodiment, the higher layer parameter "usage" associated with the first reference signal resource set and the higher layer parameter "usage" associated with the second reference signal resource set are both set to "codebook" or both set to "nonCodebook".

Typically, the first higher-level parameter configures two SRS resource sets, and the higher-level parameter "usage" associated with the two SRS resource sets is both set to "codebook" or both set to "nonCodebook"; the first A reference signal resource set is a first SRS resource set in the two SRS resource sets, and the second reference signal resource set is a second SRS resource set in the two SRS resource sets.

As an embodiment, the first higher layer parameter configures the first reference signal resource set first, and then configures the second reference signal resource set.

As an embodiment, the name of the first higher layer parameter includes "srs-ResourceSetToAddMod".

As an embodiment, the name of the first higher layer parameter includes "srs-ResourceSetToAddModList".

As an embodiment, the first higher layer parameter includes information in the fourth field in the first IE (InformationElement, information element), the name of the first IE includes "SRS-Config", and the fourth The domain name includes "srs-ResourceSetToAddModList".

As an embodiment, the first reference signal resource set is identified by an SRS-ResourceSetId, and the second reference signal resource set is identified by an SRS-ResourceSetId; the SRS-ResourceSetId of the first reference signal resource set is not equal to the SRS-ResourceSetId of the second reference signal resource set.

As an embodiment, the SRS-ResourceSetId of the first reference signal resource set is smaller than the SRS-ResourceSetId of the second reference signal resource set.

As an embodiment, any reference signal resource in the first reference signal resource set is identified by an SRS-ResourceId, and any reference signal resource in the second reference signal resource set is identified by an SRS-ResourceId .

As an embodiment, the minimum value of the SRS-ResourceId of the reference signal resources in the first reference signal resource set is smaller than the minimum value of the SRS-ResourceId of the reference signal resources in the second reference signal resource set.

Typically, any reference signal resource in the first set of reference signal resources includes at least one reference signal port, and any reference signal resource in the second set of reference signal resources includes at least one reference signal port.

Typically, any reference signal port of any reference signal resource in the first reference signal resource set is an SRS port, and any reference signal port of any reference signal resource in the second reference signal resource set is an SRS port .

As an embodiment, the numbers of reference signal ports of any two reference signal resources in the first reference signal resource set are equal.

As an embodiment, the numbers of reference signal ports of two reference signal resources in the first reference signal resource set are not equal.

As an embodiment, the numbers of reference signal ports of any two reference signal resources in the second reference signal resource set are equal.

As an embodiment, the numbers of reference signal ports of two reference signal resources in the second reference signal resource set are unequal.

As an embodiment, the number of reference signal ports of any reference signal resource in the first reference signal resource set is equal to the number of reference signal ports of any reference signal resource in the second reference signal resource set.

As an embodiment, the number of reference signal ports of one reference signal resource in the first reference signal resource set is not equal to the number of reference signal ports of one reference signal resource in the second reference signal resource set.

As an embodiment, the second field in the first signaling and the third field in the first signaling are related to the first reference signal resource set and the second reference signal resource set The relationship between includes: which field or fields of the second field in the first signaling and the third field in the first signaling are related to the first reference signal The resource set is associated with which or several reference signal resource sets in the second reference signal resource set.

As an embodiment, the second field in the first signaling and the third field in the first signaling are related to the first reference signal resource set and the second reference signal resource set The relationship between includes: whether the second field in the first signaling is associated with one of the first reference signal resource set and the second reference signal resource set, and if so, the The second field in the first signaling is associated with which one of the first reference signal resource set and the second reference signal resource set; the third field in the first signaling Whether it is associated with one of the first reference signal resource set and the second reference signal resource set, and if yes, the third field in the first signaling is associated with the first reference signal resource set Which one in the second reference signal resource set is associated with.

As an embodiment, the second field in the first signaling and the third field in the first signaling are related to the first reference signal resource set and the second reference signal resource set The relationship between includes: whether the third field in the first signaling is reserved.

As a sub-embodiment of the above embodiment, when the third field in the first signaling is reserved, the second field in the first signaling and the The relationship between the third field in the first signaling resource set and the second reference signal resource set further includes: the second field in the first signaling and the first reference signal resource set A set of reference signal resources is associated with which of the second set of reference signal resources.

As a sub-embodiment of the above embodiment, when the third field in the first signaling is not reserved, the second field in the first signaling and the first signaling The third fields in are respectively associated with the first set of reference signal resources and the second set of reference signal resources.

As an embodiment, the second field in the first signaling and the third field in the first signaling are related to the first reference signal resource set and the second reference signal resource set The relationship between: only one of the second field in the first signaling and the third field in the first signaling is related to the first reference signal resource set and the one of the second reference signal resource sets, or the second field in the first signaling and the third field in the first signaling are respectively associated with the first reference signal resource A set is associated with one of the second set of reference signal resources.

As an embodiment, the second field in the first signaling and the third field in the first signaling are related to the first reference signal resource set and the second reference signal resource set The relationship between includes: the second field in the first signaling is associated with one of the first reference signal resource set and the second reference signal resource set and the first signaling The third field in the signaling is reserved, or the second field in the first signaling and the third field in the first signaling are respectively combined with the first reference signal resource set associated with the second reference signal resource set.

As an embodiment, the second field in the first signaling is always associated with one of the first reference signal resource set and the second reference signal resource set, and in the first signaling The third domain of is associated with or reserved for the second set of reference signal resources.

As an embodiment, at least one of the second field in the first signaling and the third field in the first signaling is related to the first reference signal resource set and the second One of the two reference signal resource sets is associated.

As an embodiment, the first signal includes a baseband signal.

As an embodiment, the first signal includes a wireless signal.

As an embodiment, the first signal includes a radio frequency signal.

Typically, the first signal carries at least one TB (Transport Block, transport block), and any TB in the at least one TB is mapped to one codeword in the at least one codeword.

As an embodiment, the mapping of the at least one codeword to the v layers includes: mapping the modulation symbols of the at least one codeword to the v layers.

As an embodiment, the v layers are respectively v layers.

Typically, the v layers are indexed sequentially.

Typically, the indices of the v layers are 0, . . . , v-1 respectively.

As an embodiment, the v layers occupy the same time-frequency resource.

As an embodiment, any two layers in the v layers are sent by different antenna ports.

As an embodiment, the value of the antenna port sending any one of the v layers is a positive integer not less than 1000.

As an embodiment, the value of the antenna port for sending any one of the v layers is a positive integer not greater than 1064.

As an embodiment, the channel experienced by another wireless signal transmitted from one antenna port may be deduced from the channel experienced by one wireless signal transmitted through one antenna port.

As an example, the channel experienced by the wireless signal transmitted from another antenna port cannot be deduced from the channel experienced by the wireless signal transmitted from one antenna port.

As an embodiment, the v layers are x ⁽⁰⁾ (i)...x ^(v-1) (i), i=0~M-1, and M is the number of modulation symbols of each layer.

As an example, for the definition of x ⁽⁰⁾ (i)...x ^(v-1) (i), refer to 3GPP TS 38.211.

As an embodiment, the first layer in the v layers is x ⁽⁰⁾ (i), the second layer in the v layers is x ⁽¹⁾ (i), and so on; i =0~M-1, where M is the number of modulation symbols of each layer.

As an embodiment, the index of the first layer among the v layers is 0, the index of the second layer among the v layers is 1, and so on.

As an embodiment, the v layers correspond to y ⁽⁰⁾ (i) ... y ^(v-1) in the vector group [y ( ⁰ ) (i) ... y ^(v-1 ) (i)] ^T in turn (i), i=0,1,...,M; the M is the number of modulation symbols of each layer.

As an example, for the definition of y ⁽⁰⁾ (i)...y ^(v-1) (i), refer to 3GPP TS 38.211.

As an embodiment, the first bit group includes at least one bit.

As an embodiment, the first bit group includes at least one field in the DCI.

As an embodiment, the first bit group includes all or part of bits in at least one field in the DCI.

As an embodiment, the first bit group is a field in DCI.

As an embodiment, the first bit group includes the Antenna ports field in the DCI.

As an embodiment, the first bit group includes information in the Antenna ports field in the DCI.

As an embodiment, the first bit group indicates an index of the first port sequence.

As an embodiment, the first port sequence belongs to a target port sequence table; the first bit group indicates an index of the first port sequence in the target port sequence table.

As an embodiment, the first port sequence belongs to a target port sequence table; the target port sequence table includes a plurality of rows, each row in the plurality of rows includes a port sequence, and the first bit group indicates the The index of the row where the first port sequence is located in the target port sequence table.

As an embodiment, the meaning of whether the phrase is related to the first port sequence includes: whether it is related to at least one of the first CDM group and the second CDM group.

As an embodiment, the meaning of whether the phrase is related to the first port sequence includes: whether it is related to at least one of the number of DMRS ports in the first CDM group and the number of DMRS ports in the second CDM group one related.

As an embodiment, the meaning of whether the phrase is related to the first port sequence includes: whether it is related to the position of the DMRS port in the first CDM group in the first port sequence and the position of the second CDM group At least one of the positions of the DMRS ports in the first port sequence is related.

As an embodiment, the first field in the first signaling is used to determine whether the mapping manner of the at least one codeword to the v layers is related to the first port sequence.

As an embodiment, the first node determines whether the mapping method of the at least one codeword to the v layers is consistent with the first port according to the first field in the first signaling sequence related.

As an embodiment, the v layers are indexed sequentially; the v DMRS ports are indexed sequentially from left to right in the first port sequence; the xth layer in the v layers The DMRS of is mapped to the x-th DMRS port among the v DMRS ports; the x is any positive integer not greater than the v.

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 .

Accompanying drawing 2 illustrates LTE (Long-Term Evolution, long-term evolution), LTE-A (Long-Term Evolution Advanced, enhanced long-term evolution) and a network architecture 200 of a future 5G system. The network architecture 200 of LTE, LTE-A and future 5G systems is called EPS (Evolved Packet System, Evolved Packet System) 200. The network architecture 200 of 5GNR or LTE can be called 5GS (5G System)/EPS (Evolved Packet System, Evolved Packet System) system) 200 or some other suitable terminology. 5GS/EPS 200 may include one or more UEs (User Equipment, user equipment) 201, a UE241 for Sidelink communication with UE201, NG-RAN (Next Generation Radio Access Network) 202, 5GC (5G CoreNetwork, 5G Core Network)/EPC (Evolved Packet Core, Evolved Packet Core) 210, HSS (Home Subscriber Server, Home Subscriber Server)/UDM (Unified Data Management, Unified Data Management) 220 and Internet Service 230. 5GS/EPS200 May be interconnected with other access networks, but these entities/interfaces are not shown for simplicity. As shown in Figure 2, 5GS/EPS 200 provides packet switched services, however those skilled in the art will readily appreciate that the various concepts presented throughout this application can be extended to networks providing circuit switched services. NG-RAN202 includes NR (New Radio, new radio) node B (gNB) 203 and other gNB204. The gNB 203 provides user and control plane protocol termination towards the UE 201 . A gNB 203 may connect to other gNBs 204 via an Xn interface (eg, backhaul). A gNB 203 may also be called a base station, base transceiver station, radio base station, radio transceiver, transceiver function, Basic Service Set (BSS), Extended Service Set (ESS), TRP (Transmit Receive Point) or some other suitable terminology. The gNB203 provides an access point to the 5GC/EPC210 for the UE201. Examples of UE 201 include cellular phones, smart phones, Session Initiation Protocol (SIP) phones, laptop computers, personal digital assistants (PDAs), satellite radios, global positioning systems, multimedia devices, video devices, digital audio players ( For example, MP3 players), cameras, game consoles, drones, aircraft, narrowband physical network devices, machine type communication devices, land vehicles, automobiles, wearable devices, or any other similarly functional device. Those skilled in the art may also refer to UE 201 as a mobile station, subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, Mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client or some other suitable term. gNB203 is connected to 5GC/EPC210 through S1/NG interface. 5GC/EPC210 includes MME (Mobility Management Entity, mobility management entity)/AMF (Authentication Management Field, authentication management domain)/SMF (Session Management Function, session management function) 211. Other MME/AMF/SMF214, S-GW (Service Gateway, service gateway)/UPF (User Plane Function, user plane function) 212, and P-GW (Packet Date Network Gateway, packet data network gateway)/UPF213. MME/AMF/SMF211 is a control node that handles signaling between UE201 and 5GC/EPC210. In general the MME/AMF/SMF 211 provides bearer and connection management. All user IP (Internet Protocol, Internet Protocol) packets are transmitted through S-GW/UPF212, and S-GW/UPF212 itself is connected to P-GW/UPF213. P-GW provides UE IP address allocation and other functions. P-GW/UPF 213 connects to Internet service 230 . The Internet service 230 includes the Internet protocol service corresponding to the operator, and may specifically include Internet, Intranet, IMS (IP Multimedia Subsystem, IP Multimedia Subsystem) and packet switching (Packet switching) services.

As an embodiment, the first node in this application includes the UE201.

As an embodiment, the second node in this application includes the gNB203.

As an embodiment, the wireless link between the UE201 and the gNB203 is a cellular network link.

As an embodiment, the sender of the first signaling includes the gNB203.

As an embodiment, the recipient of the first signaling includes the UE201.

As an embodiment, the sender of the first signal includes the UE201.

As an embodiment, the receiver of the first signal includes the gNB203.

As an embodiment, the UE201 supports simultaneous multi-panel/TRP UL transmission (simultaneous multi-panel/TRP UL transmission).

Example 3

Embodiment 3 illustrates a schematic diagram of an embodiment of a radio protocol architecture of a user plane and a 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 of a user plane and a control plane according to the present application, as shown in FIG. 3 . FIG. 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for the user plane 350 and the control plane 300. FIG. 3 shows three layers for the first communication node device (UE, gNB or RSU in V2X) and the second The radio protocol architecture of the control plane 300 between communication node devices (gNB, UE or RSU in V2X), or between two UEs: 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 PHY 301 and is responsible for the link between the first communication node device and the second communication node device, or between two UEs. L2 layer 305 includes MAC (Medium Access Control, Media Access Control) sublayer 302, RLC (Radio Link Control, radio link layer control protocol) sublayer 303 and PDCP (Packet Data Convergence Protocol, packet data convergence protocol) sublayer 304. These sublayers are terminated 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 encrypting data packets, and provides handover support for the first communication node device between the second communication node devices. 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 (eg, resource blocks) in a cell among the first communication node devices. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control, radio resource control) sublayer 306 in layer 3 (L3 layer) in the control plane 300 is responsible for obtaining radio resources (that is, radio bearers) and using the connection between the second communication node device and the first communication node device Inter- RRC signaling to configure the lower layer. The radio protocol architecture of the user plane 350 includes layer 1 (L1 layer) and layer 2 (L2 layer), the radio protocol architecture for the first communication node device and the second communication node device in the user plane 350 is for the physical layer 351, L2 The PDCP sublayer 354 in the layer 355, the RLC sublayer 353 in the L2 layer 355, and the MAC sublayer 352 in the L2 layer 355 are substantially the same 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 also includes a SDAP (Service Data Adaptation Protocol, Service Data Adaptation Protocol) sublayer 356, and the SDAP sublayer 356 is responsible for the mapping between the QoS flow and the data radio bearer (DRB, Data Radio Bearer) , to support business diversity. 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) terminating at the P-GW on the network side and another layer terminating at the connection. Application layer at one end (eg, remote UE, server, etc.).

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

As an embodiment, the wireless protocol architecture in Fig. 3 is applicable to the second node in this application.

As an embodiment, the first signaling is generated by the PHY301 or the PHY351.

As an embodiment, the first signaling is generated in the MAC sublayer 302 or the MAC sublayer 352 .

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

As an embodiment, the first signal is generated by the PHY301 or the PHY351.

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 communication device 410 includes a controller/processor 475 , a memory 476 , a receive processor 470 , a transmit processor 416 , a multi-antenna receive processor 472 , a multi-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 multi-antenna transmit processor 457, a multi-antenna receive processor 458, a transmitter/receiver 454 and antenna 452 .

In transmission from said first communication device 410 to said second communication device 450 , at said first communication device 410 upper layer data packets from the core network are provided to a controller/processor 475 . Controller/processor 475 implements the functionality of the L2 layer. In the DL, the controller/processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and routing to the second communication device 450 based on various priority metrics. Radio resource allocation. 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 (ie, physical layer). The transmit processor 416 implements encoding and interleaving to facilitate forward error correction (FEC) at the second communication device 450, and 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)) constellation mapping. The multi-antenna transmit processor 471 performs digital spatial precoding on the coded and modulated symbols, including codebook-based precoding and non-codebook-based precoding, and beamforming processing to generate one or more parallel streams. The 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 domains, and then uses an inverse fast Fourier transform (IFFT) to ) to generate a physical channel carrying a stream of time-domain multi-carrier symbols. Then the multi-antenna transmit processor 471 performs a transmit analog precoding/beamforming operation on the time-domain multi-carrier symbol stream. Each transmitter 418 converts the baseband multi-carrier symbol stream provided by the multi-antenna transmit processor 471 into an RF stream, which is then provided to a different antenna 420 .

In transmission from said first communication device 410 to said second communication device 450 , at said second communication device 450 each receiver 454 receives a signal via its respective antenna 452 . Each receiver 454 recovers the information modulated onto an RF carrier and converts the RF stream to a baseband multi-carrier symbol stream that is provided to a receive processor 456 . Receive processor 456 and multi-antenna receive processor 458 implement various signal processing functions of the L1 layer. The 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 multi-carrier 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 signal and the reference signal are demultiplexed by the receiving processor 456, wherein the reference signal will be used for channel estimation, and the data signal is recovered in the second Communication device 450 is the destination for any parallel streams. The symbols on each parallel stream are demodulated and recovered in 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 communications device 410 on the physical channel. The upper layer data and control signals are then provided to the controller/processor 459 . Controller/processor 459 implements the functions of the L2 layer. Controller/processor 459 can be associated with memory 460 that stores program codes and data. Memory 460 may be referred to as a computer-readable medium. In DL, the controller/processor 459 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover upper layer packets from the core network. The upper layer packets are then provided to all protocol layers above the L2 layer. Various control signals may also be provided to L3 for L3 processing. Controller/processor 459 is also responsible for error detection using acknowledgment (ACK) and/or negative acknowledgment (NACK) protocols to support HARQ operation.

In transmission from said second communication device 450 to said first communication device 410 , at said second communication device 450 a data source 467 is used 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 communication device 410 described in DL, the controller/processor 459 implements header compression, encryption, packet segmentation and reordering, and logical AND based on the radio resource allocation of the first communication device 410. Multiplexing between transport channels, implementing L2 layer functions for user plane and control plane. The controller/processor 459 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the first communication device 410 . The transmit processor 468 performs modulation mapping and channel coding processing, and the multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing, and then transmits The processor 468 modulates the generated parallel streams into multi-carrier/single-carrier symbol streams, which are provided to different antennas 452 via the transmitter 454 after undergoing analog precoding/beamforming operations in the multi-antenna transmit processor 457 . Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into an RF symbol stream, and then provides it to the antenna 452 .

In the transmission from the second communication device 450 to the first communication device 410, the function at the first communication device 410 is similar to that in the transmission from the first communication device 410 to the second communication device 450 The receiving function at the second communication device 450 is described in the transmission. Each receiver 418 receives radio frequency signals through its respective antenna 420 , converts the received radio frequency signals to baseband signals, and provides the baseband signals to multi-antenna receive processor 472 and receive processor 470 . The receive processor 470 and the multi-antenna receive processor 472 jointly implement the functions of the L1 layer. Controller/processor 475 implements L2 layer functions. Controller/processor 475 can be associated with 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, decryption, header decompression, control signal processing to recover upper layer packets from the second communication device 450 . Upper layer packets from controller/processor 475 may be provided to the core network. Controller/processor 475 is also responsible for error detection using ACK and/or NACK protocols to support HARQ operation.

As an embodiment, the second communication device 450 includes: at least one processor and at least one memory, and the at least one memory includes computer program code; the at least one memory and the computer program code are configured to communicate with the Use with at least one processor. The second communication device 450 means at least: receiving the first signaling; and sending the first signal.

As an embodiment, the second communication device 450 includes: a memory storing a computer-readable instruction program, and the computer-readable instruction program generates an action when executed by at least one processor, and the action includes: receiving the The first signaling; sending the first signal.

As an embodiment, the first communication device 410 includes: at least one processor and at least one memory, and the at least one memory includes computer program code; the at least one memory and the computer program code are configured to communicate with the Use with at least one processor. The first communication device 410 means at least sending the first signaling; receiving the first signal.

As an embodiment, the first communication device 410 includes: a memory storing a computer-readable instruction program, and the computer-readable instruction program generates an action when executed by at least one processor, and the action includes: sending the The first signaling; receiving the first signal.

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

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

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

As an embodiment, at least one of {the antenna 420, the receiver 418, the receiving processor 470, the multi-antenna receiving processor 472, the controller/processor 475, and the memory 476} One is used to receive the first signal; {the antenna 452, the transmitter 454, the transmit processor 468, the multi-antenna transmit processor 457, the controller/processor 459, the The memory 460, at least one of the data sources 467} is used to send the first signal.

Example 5

Embodiment 5 illustrates a flow chart of 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 through the air interface. In Fig. 5, the steps in block F51 are optional.

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

For the first node U2, the first information block is received in step S5201; the first signaling is received in step S521; and the first signal is sent in step S522.

In Embodiment 5, the first signaling indicates the scheduling information of the first signal; the first signaling includes a first field, a second field, and a third field; all in the first signaling The first field indicates the relationship between the second field in the first signaling and the third field in the first signaling and the first reference signal resource set and the second reference signal resource set ; The first signal carries at least one codeword; The first signal includes v layers, where v is a positive integer greater than 1; The at least one codeword is mapped to the v layers; A signaling includes a first bit group, the first bit group in the first signaling indicates a first port sequence arranged in sequence; the first port sequence includes v DMRS ports; the first port sequence Including a first CDM group and a second CDM group, the first CDM group and the second CDM group respectively include at least one DMRS port in the v DMRS ports; the at least one codeword to the v DMRS ports Whether the layer mapping mode is related to the first port sequence is related to the first field in the first signaling.

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

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

As an embodiment, the air interface between the second node U1 and the first node U2 includes a wireless interface between a base station device and a user equipment.

As an embodiment, the air interface between the second node U1 and the first node U2 includes a wireless interface between a relay node device and a user equipment.

As an embodiment, the air interface between the second node U1 and the first node U2 includes a user equipment-to-user wireless interface.

As an embodiment, the second node U1 is a serving cell maintenance base station of the first node U2.

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

As an embodiment, the first signaling is transmitted in a PDSCH (Physical Downlink Shared CHannel, physical downlink shared channel).

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

As an embodiment, the first signaling is transmitted in a PDCCH (Physical Downlink Control Channel, physical downlink control channel).

As an embodiment, the first signal is transmitted in an uplink physical layer data channel (that is, an uplink channel that can be used to carry physical layer data).

As an embodiment, the first signal is transmitted in a PUSCH (Physical Uplink Shared CHannel, physical uplink shared channel).

As an embodiment, the steps in block F51 in FIG. 5 exist, and the above-mentioned method used in the first node of wireless communication includes: receiving a first information block; wherein, the first information block includes the Configuration information of the first set of reference signal resources and configuration information of the second set of reference signal resources.

As an embodiment, the steps in block F51 in FIG. 5 exist, and the above-mentioned method used in the second node for wireless communication includes: sending the first information block.

As an embodiment, the first information block sequentially indicates the configuration information of the first reference signal resource set and the configuration information of the second reference signal resource set.

As an embodiment, the first information block configures the first reference signal resource set and the second reference signal resource set in sequence.

As an embodiment, the configuration information includes SRS-ResourceSetId, SRS-ResourceId of included SRS resources, time domain behavior, or part or all of the value of the higher layer parameter "usage".

As an embodiment, the time domain behavior includes periodic, semi-persistent and aperiodic.

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

As an embodiment, the first information block is carried by a MAC CE.

As an embodiment, the first information block is jointly carried by RRC signaling and MAC CE.

As an embodiment, the first information block includes all or part of the information in one IE.

As an embodiment, the first information block includes all or part of the information in the first IE, and the name of the first IE includes "SRS-Config".

As a sub-embodiment of the foregoing embodiment, the first information block includes information in the fourth field of the first IE, and the name of the fourth field includes "srs-ResourceSetToAddModList".

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

Example 6

Embodiment 6 illustrates a schematic diagram of a first port sequence according to an embodiment of the present application; as shown in FIG. 6 . In Embodiment 6, the first port sequence includes the v DMRS ports. In FIG. 6, the v DMRS ports are denoted as DMRS port #0, ..., DMRS port #(v-1) respectively.

As an embodiment, the sequentially arranged first port sequence refers to: the v DMRS ports in the first port sequence are arranged sequentially from left to right.

As an embodiment, said v is a positive integer not greater than 4.

As an embodiment, said v is a positive integer not greater than 8. Typically, the v DMRS ports are arranged sequentially from left to right in the first port sequence.

Typically, the v DMRS ports are respectively v non-negative integers.

As an embodiment, the v DMRS ports are respectively v non-negative integers not greater than 12.

As an embodiment, the v DMRS ports are respectively v non-negative integers not greater than 24.

As an embodiment, the values of the v DMRS ports are not equal to each other.

As an embodiment, the v DMRS ports are respectively

As an example, the first port sequence is

As an example, the

See 3GPP TS38.214, 3GPP TS38.212 and 3GPP TS38.211 for the definition of .

As an embodiment, the first port sequence is composed of the v DMRS ports.

Typically, the v DMRS ports are arranged sequentially from left to right to form the first port sequence.

As an embodiment, the first given port and the second given port are respectively any two DMRS ports in the v DMRS ports; if the first given port is ranked in the first port sequence To the left of the second given port, the value of the first given port is smaller than the second given port; if the first given port is in the second given port sequence in the first port sequence To the right of a given port, the value of the first given port is greater than the value of the second given port.

As an embodiment, there are a first given port and a second given port among the v DMRS ports, and the first given port is ranked next to the second given port in the first port sequence. left, and the value of the first given port is greater than the value of the second given port.

As an embodiment, a CDM group includes at least one DMRS port.

As an embodiment, any two DMRS ports in the same CDM group are quasi co-located.

As an embodiment, any two DMRS ports in the same CDM group are delayed spread (delay spread), Doppler spread (Doppler spread), Doppler shift (Doppler shift), average delay (average delay), It is quasi-co-located with the Spatial Rx parameter.

As an embodiment, any two DMRS ports in the same CDM group correspond to the same spatial domain transmit filter.

As an embodiment, any two DMRS ports in the same CDM group correspond to the same TCI state.

As an embodiment, any two DMRS ports in the same CDM group are mapped to the same antenna port as the SRS ports in the same SRS resource set.

As an embodiment, any two DMRS ports in the same CDM group occupy the same time-frequency resource.

As an embodiment, any two DMRS ports in the same CDM group occupy different code domain resources.

As an embodiment, the code domain resources include w _f (k'), k'=0,1 and w _t (l'), l'=0,1.

As an example, the definitions of w _f (k') and w _t (l') refer to 3GPP TS38.211.

As an embodiment, no DMRS port belongs to the first CDM group and the second CDM group at the same time.

As an embodiment, for any DMRS port in the first port sequence, the value of the any DMRS port is used to determine whether the any DMRS port belongs to the first CDM group or the second CDM group Group.

As a sub-embodiment of the above-mentioned embodiment, at least one of Table 6.4.1.1.3-1 and Table 6.4.1.1.3-2 in 3GPP TS38.211 is used according to the value of any DMRS port Judging whether the any DMRS port belongs to the first CDM group or the second CDM group.

Typically, all DMRS ports in the first CDM group belong to CDM group j1, and all DMRS ports in the second CDM group belong to CDM group j2; the j1 and the j2 are non-negative integers, and the j1 Not equal to the j2.

As a sub-embodiment of the above-mentioned embodiment, the j1 and the j2 are not greater than 3 respectively.

As a sub-embodiment of the above-mentioned embodiment, the j1 and the j2 are not greater than 6 respectively.

As a sub-embodiment of the foregoing embodiment, the j1 is smaller than the j2.

As a sub-embodiment of the foregoing embodiment, the j1 is greater than the j2.

As an embodiment, the definition of CDM group j refers to 3GPP TS 38.211, where j is a non-negative integer.

As an embodiment, the positions of the first CDM group and the second CDM group in the first port sequence are default.

As an embodiment, the first port is the leftmost DMRS port in the first port sequence in the first CDM group, and the second port is the first port in the second CDM group The leftmost port in the sequence, the first port is arranged to the left of the second port in the first port sequence.

As an embodiment, the first port is the leftmost DMRS port in the first port sequence in the first CDM group, and the second port is the first port in the second CDM group The leftmost port in the sequence, the first port is arranged to the right of the second port in the first port sequence.

As an embodiment, the v DMRS ports are respectively

The first port is a DMRS port with the smallest subscript in the first CDM group, the second port is a DMRS port with the smallest subscript in the second CDM group, and the subscript corresponding to the first port is The subscript is smaller than the subscript corresponding to the second port.

As an embodiment, the v DMRS ports are respectively

The first port is a DMRS port with the smallest subscript in the first CDM group, the second port is a port with the smallest subscript in the second CDM group, and the subscript corresponding to the first port is greater than the subscript corresponding to the second port.

As an embodiment, the first port is the smallest DMRS port in the first CDM group, the second port is the smallest DMRS port in the second CDM group, and the first port is smaller than the second port .

As an embodiment, the first port is the smallest DMRS port in the first CDM group, the second port is the smallest DMRS port in the second CDM group, and the first port is larger than the second port .

As an embodiment, the first port sequence includes two CDM groups, and the number of DMRS ports in the two CDM groups is not equal; the first CDM group is that the number of DMRS ports included in the two CDM groups is smaller big one.

As an embodiment, the first port sequence includes two CDM groups, and the number of DMRS ports in the two CDM groups is not equal; the first CDM group is that the number of DMRS ports included in the two CDM groups is smaller small one.

As an embodiment, the first port sequence consists of the first CDM group and the second CDM group.

As an embodiment, the first port sequence includes a CDM group other than the first CDM group and the second CDM group.

As an embodiment, the positions of the DMRS ports in the first CDM group in the first port sequence are discontinuous.

As an embodiment, the positions of the DMRS ports in the first CDM group in the first port sequence are continuous.

As an embodiment, the positions of the DMRS ports in the second CDM group in the first port sequence are discontinuous.

As an embodiment, the positions of the DMRS ports in the second CDM group in the first port sequence are continuous.

Example 7

Embodiment 7 illustrates the relationship between the second field in the first signaling and the third field in the first signaling and the first reference signal resource set and the second reference signal resource set according to an embodiment of the present application The schematic diagram; as shown in Figure 7. In embodiment 7, the second field in the first signaling and the third field in the first signaling are related to the first reference signal resource set and the second reference signal resource The relationship between the sets is one of the first candidate relationship, the second candidate relationship or the third candidate relationship; the first candidate relationship is the first candidate relationship in the first signaling The second field is associated with the first set of reference signal resources and the third field in the first signaling is reserved, and the second candidate relationship is the second A field is associated with the second set of reference signal resources and the third field in the first signaling is reserved, the third candidate relationship is the second field in the first signaling and the third field in the first signaling are respectively associated with the first reference signal resource set and the second reference signal resource set.

As an embodiment, when the value of the first field in the first signaling is equal to the first candidate value, the second field in the first signaling and the first reference signal resource set associated and the third field in the first signaling is reserved; when the value of the first field in the first signaling is equal to the second candidate value, the The second domain in the first signaling is associated with the second reference signal resource set and the third domain in the first signaling is reserved; when the first domain in the first signaling When the value is equal to the third candidate value, the second field in the first signaling and the third field in the first signaling are respectively related to the first reference signal resource set and the second The reference signal resource sets are associated; the first candidate value, the second candidate value and the third candidate value are non-negative integers respectively.

As a sub-embodiment of the foregoing embodiment, the first candidate value is equal to 0, the second candidate value is equal to 1, and the third candidate value is equal to 2.

As a sub-embodiment of the above embodiment, when the value of the first field in the first signaling is equal to the third candidate value or the fourth candidate value, the The second field and the third field in the first signaling are respectively associated with the first reference signal resource set and the second reference signal resource set; the fourth candidate value is equal to 3.

As an embodiment, when the second field in the first signaling is associated with one of the first reference signal resource set and the second reference signal resource set, and the first signaling When the third field in the first signaling is also associated with one of the first reference signal resource set and the second reference signal resource set, the second field in the first signaling is always associated with the The first set of reference signal resources is associated, and the third field in the first signaling is always associated with the second set of reference signal resources.

As an embodiment, when only one of the second field in the first signaling and the third field in the first signaling is compatible with the first reference signal resource set and the first When one of the two reference signal resource sets is associated; both the second field in the first signaling and the third field in the first signaling are always the first signaling The second field in is associated with one of the first set of reference signal resources and the second set of reference signal resources.

As an embodiment, when the third field in the first signaling is reserved, the third field in the first signaling is not associated with the first reference signal resource set not associated with the second set of reference signal resources.

As an embodiment, when the third field in the first signaling is reserved, the first node ignores the third field in the first signaling.

As an embodiment, when the third field in the first signaling is reserved, the third field in the first signaling is used by the first node to verify the first Whether the signaling is received correctly.

As a sub-embodiment of the above-mentioned embodiment, when the value of the third field in the first signaling is not equal to the first given value, the first node considers that the first signaling is incorrect take over.

As an embodiment, when the third field in the first signaling is reserved, a value of the third field in the first signaling is fixed.

Example 8

Embodiment 8 illustrates a schematic diagram of associating a field in the first signaling with a reference signal resource set according to an embodiment of the present application; as shown in FIG. 8 . In Embodiment 8, one field in the first signaling is associated with one reference signal resource set; the one field is any one of the second field or the third field, and the one reference signal The resource set is any one of the first reference signal resource set or the second reference signal resource set.

As an embodiment, the meaning of the sentence that a field in the first signaling is associated with a set of reference signal resources includes: the reference signal resource indicated by the field in the first signaling belongs to the one reference signal resource A collection of signal resources.

As an embodiment, the meaning of the sentence that a field in the first signaling is associated with a set of reference signal resources includes: the field in the first signaling indicates from the set of reference signal resources At least one reference signal resource.

As an embodiment, the meaning of the sentence that a field in the first signaling is associated with a set of reference signal resources includes: the precoder indicated by the field in the first signaling is applied to the corresponding At least one layer of one reference signal resource in one reference signal resource set.

As an embodiment, the meaning of the sentence that a field in the first signaling is associated with a set of reference signal resources includes: at least one layer of the first signal is used by the field in the first signaling The indicated precoder is mapped to the same antenna port as the reference signal port of one reference signal resource in the one reference signal resource set after precoding.

As an embodiment, when the one field in the first signaling is associated with the one set of reference signal resources, the one field in the first signaling indicates a subset of reference signal resources, Any reference signal resource in the one reference signal resource subset belongs to the one reference signal resource set.

As a sub-embodiment of the foregoing embodiment, the one field in the first signaling indicates the SRI of each reference signal resource in the one reference signal resource subset.

As an embodiment, when the one field in the first signaling is associated with the one reference signal resource set, the one field in the first signaling indicates a precoder, the At least one layer of the first signal is precoded by the one precoder and then mapped to an antenna port that is the same as a reference signal port of one reference signal resource in the one reference signal resource set.

As a sub-embodiment of the foregoing embodiment, the one field in the first signaling indicates the TPMI of the one precoder.

Example 9

Embodiment 9 illustrates a schematic diagram of the first signaling according to an embodiment of the present application; as shown in FIG. 9 . In Embodiment 9, the first signaling includes a fifth field and a sixth field; when the second field in the first signaling is associated with the first reference signal resource set, the sixth field The fifth field in a signaling is associated with the first reference signal resource set; when the second field in the first signaling is associated with the second reference signal resource set, the The fifth field in the first signaling is associated with the second reference signal resource set; when the third field in the first signaling is associated with the second reference signal resource set, the The sixth field in the first signaling is associated with the second reference signal resource set; when the third field in the first signaling is reserved, the The sixth field is reserved.

As an embodiment, when both the second field in the first signaling and the fifth field in the first signaling are associated with the first reference signal resource set, the first The second field in a signaling indicates a first precoder, the fifth field in the first signaling indicates a first reference signal resource, and the first reference signal resource belongs to the first reference A set of signal resources: at least one layer of the v layers is precoded by the first precoder and mapped to the same antenna port as the reference signal port of the first reference signal resource.

As an embodiment, when both the second field in the first signaling and the fifth field in the first signaling are associated with the second reference signal resource set, the first The second field in a signaling indicates a second precoder, the fifth field in the first signaling indicates a second reference signal resource, and the second reference signal resource belongs to the second reference A set of signal resources, where at least one layer of the v layers is precoded by the second precoder and mapped to an antenna port that is the same as a reference signal port of the second reference signal resource.

As an embodiment, when both the third field in the first signaling and the sixth field in the first signaling are associated with the second reference signal resource set, the first The third field in a signaling indicates a second precoder, the sixth field in the first signaling indicates a second reference signal resource, and the second reference signal resource belongs to the second reference A set of signal resources, where at least one layer of the v layers is precoded by the second precoder and mapped to an antenna port that is the same as a reference signal port of the second reference signal resource.

As an embodiment, the fifth field and the sixth field respectively include at least one bit.

As an embodiment, the fifth domain and the sixth domain respectively include at least one domain in DCI.

As an embodiment, the second field includes the Precoding information and number of layers field in the DCI, and the fifth field includes the SRS resource indicator field in the DCI.

As an embodiment, the second field includes the first Precoding information and number of layers field in the DCI, and the fifth field includes the first SRS resource indicator field in the DCI.

As an embodiment, the third field includes a Second Precoding information field in the DCI, and the sixth field includes a Second SRS resource indicator field in the DCI.

As an embodiment, the third field includes the second Precoding information and number of layers field in the DCI, and the sixth field includes the second SRS resource indicator field in the DCI.

Example 10

Embodiment 10 illustrates a schematic diagram of the first signaling according to an embodiment of the present application; as shown in FIG. 10 . In embodiment 10, the first signaling includes the first field, the second field and the third field; when the second field and the first field in the first signaling When reference signal resource sets are associated, the second field in the first signaling indicates a first reference signal resource subset from the first reference signal resource set, and at least one layer of the v layers being mapped to the same antenna port as the reference signal port of the first reference signal resource subset; when the second field in the first signaling is associated with the second reference signal resource set, the The second field in the first signaling indicates a second reference signal resource subset from the second reference signal resource set, at least one layer of the v layers is mapped to the second reference signal resource the same antenna port as the reference signal port of the subset; when the third field in the first signaling is associated with the second reference signal resource set, the third field in the first signaling field indicates a second reference signal resource subset from the second reference signal resource set, at least one layer of the v layers is mapped to the same antenna port as the reference signal port of the second reference signal resource subset .

As an embodiment, the first reference signal resource subset includes at least one reference signal resource in the first reference signal resource set, and the second reference signal resource subset includes at least one reference signal resource in the second reference signal resource set At least one reference signal resource of .

Example 11

Embodiment 11 illustrates a schematic diagram of whether the mapping method of the at least one codeword to v layers is related to the first port sequence and the first field in the first signaling according to an embodiment of the present application; as shown in the accompanying drawing 11. In Embodiment 11, when the first field in the first signaling indicates that the second field in the first signaling and the third field in the first signaling are respectively the same as When the first reference signal resource set is associated with the second reference signal resource set, the mapping manner of the at least one codeword to the v layers is related to the first port sequence; when the When the first field in the first signaling indicates that one of the second field in the first signaling and the third field in the first signaling is reserved, the at least The mapping manner of a codeword to the v layers has nothing to do with the first port sequence.

As an embodiment, the meaning of the phrase related to the first port sequence includes: related to at least one of the first CDM group and the second CDM group.

As an embodiment, the meaning of the phrase related to the first port sequence includes: related to at least one of the number of DMRS ports included in the first CDM group and the number of DMRS ports included in the second CDM group .

As an embodiment, the meaning of the phrase related to the first port sequence includes: the position of the DMRS port in the first CDM group in the first port sequence and the position of the DMRS port in the second CDM group The position of the DMRS port in the first port sequence is related to at least one of the two.

As an embodiment, the meaning of the phrase irrelevant to the first port sequence includes: irrelevant to both the first CDM group and the second CDM group.

As an embodiment, the meaning of the phrase irrelevant to the first port sequence includes: not related to the number of DMRS ports included in the first CDM group, nor related to the number of DMRS ports included in the second CDM group.

As an embodiment, the meaning of the phrase irrelevant to the first port sequence includes: irrelevant to the position of the DMRS port in the first CDM group in the first port sequence, irrelevant to the position of the DMRS port in the second CDM group The position of the DMRS port in the first port sequence is also irrelevant.

As an embodiment, when the first field in the first signaling indicates one of the second field in the first signaling and the third field in the first signaling When reserved, the first field in the first signaling always indicates that the third field in the first signaling is reserved, and the first field in the first signaling Also indicating which of the first set of reference signal resources and the second set of reference signal resources is associated with the second field in the first signaling.

As an embodiment, when the first field in the first signaling indicates one of the second field in the first signaling and the third field in the first signaling When reserved, the at least one codeword comprises only one codeword.

As an embodiment, when the first field in the first signaling indicates one of the second field in the first signaling and the third field in the first signaling When reserved, the at least one codeword includes a first codeword and a second codeword; the first codeword is mapped to the first layer group in the v layers, and the second codeword is Mapped to the second layer group in the v layers; the number of layers included in the first layer group is equal to v1, the number of layers included in the second layer group is equal to v2, and the difference between the v1 and the v2 and equal to the v.

As a sub-embodiment of the foregoing embodiment, the mapping manner of the first codeword and the second codeword to the v layers has nothing to do with the first port sequence.

As an embodiment, the v1 and the v2 are respectively positive integers not greater than the v.

As an embodiment, the meaning of the sentence that the mapping manner of the at least one codeword to the v layers is independent of the first port sequence includes: for any given value of v, the The mapping manner of at least one codeword to the v layers is fixed.

As an embodiment, the meaning of the sentence that the mapping manner of the at least one codeword to the v layers is independent of the first port sequence includes: the at least one codeword only includes one codeword.

As an embodiment, the meaning of the sentence that the mapping manner of the at least one codeword to the v layers is independent of the first port sequence includes: for any given value of v, the The value of v1 and the value of v2 are fixed.

As an embodiment, the meaning of the sentence that the mapping manner of the at least one codeword to the v layers is independent of the first port sequence includes: for any given value of v, the The positions of the layers in the first layer group among the v layers and the positions of the layers in the second layer group among the v layers are respectively fixed.

As an embodiment, the meaning of the sentence that the mapping manner of the at least one codeword to the v layers is independent of the first port sequence includes: for any given value of v, the The indices of the layers in the first layer group and the indices of the layers in the second layer group are respectively fixed.

As an embodiment, the meaning of the sentence that the mapping method of the at least one codeword to the v layers has nothing to do with the first port sequence includes: the v1 is equal to the v divided by 2 and down Rounding, the v2 is equal to dividing v by 2 and then rounding up.

As an embodiment, the meaning of the sentence that the mapping method of the at least one codeword to the v layers is independent of the first port sequence includes: the v1 is equal to the v divided by 2 and taken upwards Integer, the v2 is equal to the v divided by 2 and rounded down.

As an embodiment, the meaning of the sentence that the mapping method of the at least one codeword to the v layers is independent of the first port sequence includes: the index of the v1 layers in the first layer group are 0,...,v1-1 respectively, and the indexes of the v2 layers in the second layer group are v1,...,v-1 respectively.

As an embodiment, the meaning of the sentence that the mapping method of the at least one codeword to the v layers is independent of the first port sequence includes: the index of the v1 layers in the first layer group are respectively the first, ..., the v1th layer of the v layers, and the v2 layers in the second layer group are respectively the (v1+1)th of the v layers, ..., the vth layer.

Example 12

Embodiment 12 illustrates a schematic diagram of mapping the at least one codeword to v layers according to an embodiment of the present application; as shown in FIG. 12 . In embodiment 12, the at least one codeword only includes one codeword; the mapping from the one codeword to the v layers is expressed as x ⁽⁰⁾ (i)=d ⁽⁰⁾ (v·i) ...x ^(v-1) (i)=d ⁽⁰⁾ (v i+v-1); wherein, i=0,1,...,M-1, where M is the number of modulation symbols of each layer ; x ⁽⁰⁾ (i) represents the (i+1)th modulation symbol of the first layer in the v layers, and x ^(v-1) (i) represents the vth layer in the v layers The (i+1)th modulation symbol of ; d ⁽⁰⁾ (v·i) and d ⁽⁰⁾ (v·i+v-1) respectively represent the (v·i+1)th of a codeword modulation symbol and (v·i+v)th modulation symbol.

Example 13

Embodiment 13 illustrates a schematic diagram of mapping the at least one codeword to v layers according to an embodiment of the present application; as shown in FIG. 13 . In embodiment 13, the at least one codeword includes a first codeword and a second codeword, the first codeword is mapped to a first layer group, and the second codeword is mapped to a second layer group ; The mapping of the first codeword to the first layer group is expressed as

The mapping of the second codeword to the second layer group is expressed as

Wherein, i=0,1,...,M-1, the M is the number of modulation symbols of each layer;

respectively represent the indexes of the v1 layers in the first layer group,

are positive integers not greater than v,

Respectively represent the indexes of v2 layers in the second layer group,

are positive integers not greater than v;

Indicates that the first in the v layer

The (i+1)th modulation symbol of the layer,

Indicates that the first in the v layer

The (i+1)th modulation symbol of the layer,

Indicates that the first in the v layer

The (i+1)th modulation symbol of the layer,

Indicates that the first in the v layer

The (i+1)th modulation symbol of the layer; d ⁽⁰⁾ (v1·i) and d ⁽⁰⁾ (v1·i+v1-1) represent the (v1·i+ 1) modulation symbol and (v1 i+v1) modulation symbol, d ⁽¹⁾ (v2 i) and d ⁽¹⁾ (v2 i+v2-1) respectively represent the The (v2·i+1)th modulation symbol and the (v2·i+v2)th modulation symbol.

As an example,

Respectively equal to 0,...,v1-1,

are equal to v1,...,v-1 respectively.

As an example,

are equal to v2,...,v-1 respectively,

are equal to 0,...,v2-1 respectively.

As an example,

are v1 discontinuous non-negative integers,

are v2 non-consecutive non-negative integers.

Example 14

Embodiment 14 illustrates a schematic diagram of the mapping manner of the at least one codeword to v layers and the first port sequence according to an embodiment of the present application; as shown in FIG. 14 . In embodiment 14, the number of DMRS ports included in the first CDM group is equal to the first number of ports, and the number of DMRS ports included in the second CDM group is equal to the second number of ports; when the second The first field in a signaling indicates that the second field in the first signaling and the third field in the first signaling are respectively related to the first reference signal resource set and the When the second reference signal resource set is associated, the at least one codeword includes the first codeword and the second codeword; the first codeword is mapped to the The first layer group, the second codeword is mapped to the second layer group in the v layers; the first layer group and the second layer group respectively include the v layers At least one layer; the number of layers included in the first layer group is equal to the first number of ports, and the number of layers included in the second layer group is equal to the second number of ports.

As an embodiment, when the first field in the first signaling indicates that the second field in the first signaling and the third field in the first signaling are respectively the same as the When the first reference signal resource set is associated with the second reference signal resource set, the number of layers included in the first layer group is equal to the first port number, and the number of layers included in the second layer group equal to the second port number.

As an embodiment, when the first field in the first signaling indicates one of the second field in the first signaling and the third field in the first signaling When reserved, the number of layers included in the first layer group is irrelevant to the number of first ports and the number of second ports, and the number of layers included in the second layer group is not related to the number of first ports The number and the number of the second port are irrelevant.

Typically, the first signal carries two TBs, and the two TBs are respectively mapped to the first codeword and the second codeword.

Typically, the first codeword is codeword 0, and the second codeword is codeword 1.

Typically, the first signaling includes a second bit group and a third bit group, and the second bit group in the first signaling indicates at least one of the MCS, NDI and RV of the first codeword One of, the third bit group in the first signaling indicates at least one of the MCS, NDI and RV of the second codeword; any bit in the second bit group is in the The position in the first signaling is before any bit in the third bit group.

As an embodiment, the second bit group includes at least one of the MCS field, NDI field or RV field for TB1 in the first signaling; the third bit group includes At least one of MCS domain, NDI domain or RV domain for TB2.

As an embodiment, the second bit group includes the MCS field, NDI field and RV field for TB1 in the first signaling; the third bit group includes the MCS field for TB2 in the first signaling , NDI domain and RV domain.

As an embodiment, any field in the second bit group is located before any field in the third bit group in the first signaling.

As an embodiment, the second bit group in the first signaling indicates the MCS, NDI and RV of the first codeword, and the third bit group in the first signaling indicates the MCS, NDI and RV of the second codeword.

As an embodiment, the second bit group in the first signaling enables TB1, and the third bit group in the first signaling enables TB2.

As an embodiment, the MCS field and RV field in the second bit group in the first signaling enable TB1, and the MCS field and RV field in the third bit group in the first signaling domain enable TB2.

As an embodiment, the TB1 and the TB2 are respectively mapped to the first codeword and the second codeword.

As an embodiment, the second bit group includes a plurality of consecutive bits, and the third bit group includes a plurality of consecutive bits; the position of the second bit group in the first signaling is in the Before the third bit group.

As an embodiment, the first layer group and the second layer group respectively include at least one layer of the v layers.

As an embodiment, any layer in the first layer group is one of the v layers, and any layer in the second layer group is one of the v layers.

As an embodiment, the v layers are composed of the first layer group and the second layer group.

As an embodiment, there is no layer belonging to the first layer group and the second layer group at the same time.

As an embodiment, all layers in any given layer group are mapped to the same antenna port as the SRS port in the same SRS resource set; any given layer group is the first layer group and the Any layer group in the second layer group.

As an embodiment, the same precoder is applied to all layers in any given layer group; said any given layer group is any one of said first layer group and said second layer group layer group.

As an embodiment, the number of layers included in the first layer group is smaller than the number of layers included in the second layer group.

As an embodiment, the number of layers included in the first layer group is greater than the number of layers included in the second layer group.

As an embodiment, the number of layers included in the first layer group is equal to the number of layers included in the second layer group.

As an embodiment, the number of layers included in the first layer group is not equal to the number of layers included in the second layer group.

Typically, the sum of the number of layers included in the first layer group and the number of layers included in the second layer group is equal to the v.

As an embodiment, when the first layer group includes multiple layers, the positions of the multiple layers in the first layer group in the v layers are continuous; when the second layer When the group includes multiple layers, the positions of the multiple layers in the second layer group in the v layers are continuous.

As an embodiment, when the first layer group includes multiple layers, the indexes of the multiple layers in the first layer group are continuous; when the second layer group includes multiple layers, Indexes of the plurality of layers in the second layer group are consecutive.

As an embodiment, when the first layer group includes multiple layers, there are two layers among the multiple layers in the first layer group whose positions in the v layers are discontinuous; When the second layer group includes a plurality of layers, two layers among the plurality of layers in the second layer group are discontinuous in positions among the v layers.

As an embodiment, when the first layer group includes multiple layers, the indices of two layers among the multiple layers in the first layer group are discontinuous; when the second layer group When multiple layers are included, indexes of two layers among the multiple layers in the second layer group are discontinuous.

Typically, when the first field in the first signaling indicates that the second field in the first signaling and the third field in the first signaling are respectively When a reference signal resource set is associated with the second reference signal resource set, the first layer group is always mapped to the same antenna as the reference signal port of at least one reference signal resource in the first reference signal resource set port, the second layer group is always mapped to the same antenna port as the reference signal port of at least one reference signal resource in the second reference signal resource set.

As a sub-embodiment of the foregoing embodiment, the first layer group is precoded and mapped to an antenna port that is the same as a reference signal port of at least one reference signal resource in the first reference signal resource set, and the second After being precoded, the Layer 2 group is mapped to an antenna port that is the same as a reference signal port of at least one reference signal resource in the second reference signal resource set.

Typically, the DMRS corresponding to any layer in the first layer group is mapped to a DMRS port in the first CDM group, and the DMRS corresponding to any layer in the second layer group is mapped to the One DMRS port in the second CDM group.

As an embodiment, the meaning of the sentence that the mapping manner of the at least one codeword to the v layers is related to the first port sequence includes: the number of layers included in the first layer group is equal to the The first number of ports, the number of layers included in the second layer group is equal to the second number of ports.

Typically, the first port number and the second port number are positive integers respectively; the sum of the first port number and the second port number is equal to the v.

As an embodiment, the first signaling indicates the number of layers included in the first layer group and the number of layers included in the second layer group.

As an embodiment, the second field in the first signaling indicates a first integer, and the third field in the first signaling indicates a second integer; the layers included in the first layer group The number of layers is equal to the first integer, and the number of layers included in the second layer group is equal to the second integer.

As an embodiment, the second field in the first signaling indicates a first integer, and the third field in the first signaling indicates a second integer; the layers included in the first layer group The number of is equal to the second integer, and the number of layers included in the second layer group is equal to the first integer.

As an embodiment, the first bit group in the first signaling indicates the number of layers included in the first layer group and the number of layers included in the second layer group.

As an embodiment, the first bit group in the first signaling indicates the number of layers included in the first layer group and the number of layers included in the second layer group by indicating the first port sequence. quantity.

As an embodiment, the first signaling indicates the first port number and the second port number.

As an embodiment, the second field and the third field in the first signaling indicate a first integer and a second integer respectively; the first port number is equal to the first integer, and the second The two-port number is equal to the second integer.

As an embodiment, the second field and the third field in the first signaling indicate a first integer and a second integer respectively; the first port number is equal to the second integer, and the first The two-port number is equal to the first integer.

As an embodiment, the indexes of all layers in the first layer group are 0, ..., v1-1 respectively, and the v1 is equal to the first port number; the indexes of all layers in the second layer group are v1,...,v-1, respectively.

As an embodiment, the first layer group is composed of x ⁽⁰⁾ (i)...x ^(v1-1) (i), and the second layer group is composed of x ^(v1) (i)...x ^{(v- 1)} (i) composition; i=0~M-1; said M is the number of modulation symbols of each layer.

As an embodiment, the indexes of two layers in the first layer group are discontinuous.

As an embodiment, the indexes of all layers in the second layer group are 0, ..., v2-1 respectively, and the v2 is equal to the second port number; the indexes of all layers in the second layer group are v2,...,v-1, respectively.

As an embodiment, the second layer group is composed of x ⁽⁰⁾ (i)...x ^(v2-1) (i), and the first layer group is composed of x ^(v2) (i)...x ^{(v- 1)} (i) composition; i=0~M-1; said M is the number of modulation symbols of each layer.

As an embodiment, the indexes of two layers in the second layer group are discontinuous.

Typically, the DMRSs corresponding to all layers mapped by the first codeword or the same codeword in the second codeword among the v layers are mapped to the first CDM group and the second CDM group DMRS ports in the same CDM group in the CDM group.

Typically, all layers mapped by the first codeword or the same codeword of the second codeword among the v layers are precoded by the same precoder.

As an embodiment, the first codeword is and only mapped to the first layer group, and the second codeword is and only mapped to the second layer group.

Example 15

Embodiment 15 illustrates a schematic diagram of the mapping of the first layer group and the second layer group to antenna ports according to an embodiment of the present application; as shown in FIG. 15 . In embodiment 15, the number of DMRS ports included in the first CDM group is equal to the first number of ports, and the number of DMRS ports included in the second CDM group is equal to the second number of ports; in the first signaling The first field indicates that the second field in the first signaling and the third field in the first signaling are respectively related to the first reference signal resource set and the second reference signal The resource set is associated; the at least one codeword includes a first codeword and a second codeword; the first codeword is mapped to the first layer group in the v layers, and the second codeword is Mapped to the second layer group in the v layers; the number of layers included in the first layer group is equal to the first port number, and the number of layers included in the second layer group is equal to the second port number; the second field in the first signaling indicates the first reference signal resource subset in the first reference signal resource set, and the third field in the first signaling indicates the The second reference signal resource subset in the second reference signal resource set; the number of reference signal resources included in the first reference signal resource subset is equal to the first port number, and the second reference signal resource subset includes The number of reference signal resources is equal to the second port number; all reference signal resources in the first reference signal resource subset correspond to all layers in the first layer group one by one, and in the first layer group Any layer of any layer is mapped to the same antenna port as the reference signal port of the corresponding reference signal resource; all reference signal resources in the second reference signal resource subset are in one-to-one correspondence with all layers in the second layer group, Any layer in the second layer group is mapped to the same antenna port as the reference signal port of the corresponding reference signal resource; all layers in the first layer group are the same as all DMRS ports in the first CDM group One-to-one correspondence, all layers in the second layer group correspond to all DMRS ports in the second CDM group; the DMRS corresponding to any layer in the first layer group is mapped to the first CDM Corresponding DMRS port in the group, the DMRS corresponding to any layer in the second layer group is mapped to the corresponding DMRS port in the second CDM group; all DMRS ports in the first CDM group and the first CDM group All reference signal resources in a subset of reference signal resources are in one-to-one correspondence, and all DMRS ports in the second CDM group are in one-to-one correspondence with all reference signal resources in the second subset of reference signal resources; the first CDM Any DMRS port in the group is mapped to the same antenna port as the reference signal port of the corresponding reference signal resource, and any DMRS port in the second CDM group is mapped to the same antenna port as the reference signal port of the corresponding reference signal resource Antenna port.

In FIG. 15, the ρ1 and the ρ2 are respectively the number of reference signal resources included in the first reference signal resource subset and the number of reference signal resources included in the second reference signal resource subset;

are respectively the same antenna ports as the reference signal ports of the ρ1 reference signal resources in the first reference signal resource subset,

are respectively the same antenna ports as the reference signal ports of the p2 reference signal resources in the second reference signal resource subset,

are respectively the v1 layers in the first layer group,

are respectively v2 layers in the second layer group;

are the v1 DMRS ports in the first CDM group,

are respectively v2 DMRS ports in the second CDM group; the v1 and the v2 are respectively equal to the first port number and the second port number; the μ is a subcarrier spacing configuration, and the k and the l are subcarrier index and OFDM symbol index respectively; the β1 and the β2 are respectively the amplitude scaling factor (amplitude scaling factor) of the first CDM group and the amplitude scaling factor of the second CDM group factor.

As an embodiment, the definitions of μ, k and l refer to 3GPP TS38.211.

As an example, z ^(p) (i),

and

See 3GPP TS38.211 for the definition of

or

As an embodiment, the ρ1 is equal to the first port number, and the ρ2 is equal to the second port number.

As an embodiment, the first reference signal resource subset includes at least one reference signal resource in the first reference signal resource set; the second reference signal resource subset includes at least one reference signal resource in the second reference signal resource set At least one reference signal resource of .

As an embodiment, any reference signal resource in the first reference signal resource subset belongs to the first reference signal resource set, and any reference signal resource in the second reference signal resource subset belongs to the second reference signal resource Collection of resources.

As an embodiment, any reference signal resource in the first reference signal resource subset is an SRS resource, and any reference signal resource in the second reference signal resource subset is an SRS resource.

Typically, the number of reference signal ports of any reference signal resource in the first subset of reference signal resources is equal to 1, and the number of reference signal ports of any reference signal resource in the second subset of reference signal resources is equal to 1.

As an embodiment, the first reference signal resource subset includes only one reference signal resource.

As an embodiment, the first reference signal resource subset includes multiple reference signal resources.

As an embodiment, the second reference signal resource subset includes only one reference signal resource.

As an embodiment, the second reference signal resource subset includes multiple reference signal resources.

As an embodiment, the number of reference signal resources included in the first reference signal resource subset is equal to the number of reference signal resources included in the second reference signal resource subset.

As an embodiment, the number of reference signal resources included in the first reference signal resource subset is not equal to the number of reference signal resources included in the second reference signal resource subset.

As an embodiment, the first layer group, the second layer group, the DMRS ports in the first CDM group and the DMRS ports in the second CDM group are pre-prepared by identity matrix (identity matrix) respectively. The antenna ports that are mapped to the same reference signal ports as the corresponding reference signal resources after encoding.

Example 16

Embodiment 16 illustrates a schematic diagram of the mapping of the first layer group and the second layer group to antenna ports according to an embodiment of the present application; in embodiment 16, the number of DMRS ports included in the first CDM group is equal to that of the first CDM group A port number, the number of DMRS ports included in the second CDM group is equal to the second port number; the first field in the first signaling indicates the second field in the first signaling and The third field in the first signaling is respectively associated with the first reference signal resource set and the second reference signal resource set; the at least one codeword includes a first codeword and a second codeword word; the first codeword is mapped to the first layer group in the v layers, and the second codeword is mapped to the second layer group in the v layers; the first layer group The number of layers included is equal to the first number of ports, the number of layers included in the second layer group is equal to the second number of ports; the first signaling includes a fifth domain and a sixth domain, and the second The fifth field in a signaling indicates the first reference signal resource in the first set of reference signal resources, and the sixth field in the first signaling indicates that in the second set of reference signal resources the second reference signal resource; all layers in the first layer group are precoded by the first precoder and mapped to the same antenna port as the reference signal port of the first reference signal resource; the second layer All layers in the group are precoded by the second precoder and mapped to the same antenna port as the reference signal port of the second reference signal resource; the second field in the first signaling indicates that the second A precoder, the third field in the first signaling indicates the second precoder; all layers in the first layer group and all DMRS ports in the first CDM group—— Correspondingly, all layers in the second layer group correspond to all DMRS ports in the second CDM group; the DMRS corresponding to any layer in the first layer group is mapped to the first CDM group Corresponding DMRS port in the second layer group, the DMRS corresponding to any layer in the second layer group is mapped to the corresponding DMRS port in the second CDM group; all DMRS ports in the first CDM group pass through the first After being precoded by the precoder, it is mapped to the same antenna port as the reference signal port of the first reference signal resource, and all DMRS ports in the second CDM group are precoded by the second precoder and then mapped to The reference signal port of the second reference signal resource is the same antenna port.

In FIG. 16, the v1 and the v2 are respectively equal to the first port number and the second port number; the ρ1 and the ρ2 are the reference signal ports of the first reference signal resource respectively. the number and number of reference signal ports of the second reference signal resource;

Definitions of μ, k, l, β1 and β2 are the same as those in Embodiment 15; W1 and W2 are the first precoder and the second precoder respectively.

As an example, z ^(p) (i),

and

See 3GPP TS38.211 for the definition of

or

As an embodiment, the first reference signal resource and the second reference signal resource are SRS resources respectively.

Typically, the number of reference signal ports of the first reference signal resource is greater than 1, and the number of reference signal ports of the second reference signal resource is greater than 1.

As an embodiment, the number of reference signal ports of the first reference signal resource is equal to the number of reference signal ports of the second reference signal resource.

As an embodiment, the number of reference signal ports of the first reference signal resource is not equal to the number of reference signal ports of the second reference signal resource.

As an embodiment, the first precoder and the second precoder are respectively a matrix.

As an embodiment, the first precoder includes a number of columns equal to the first number of ports, and the second precoder includes a number of columns equal to the second number of ports.

As an embodiment, the number of rows included in the first precoder is equal to the number of p1, and the number of rows included in the second precoder is equal to the number of p2.

Example 17

Embodiment 17 illustrates a schematic diagram of the mapping manner of the at least one codeword to v layers and the first port sequence according to an embodiment of the present application; as shown in FIG. 17 . In Embodiment 17, when the first field in the first signaling indicates that the second field in the first signaling and the third field in the first signaling are respectively the same as When the first reference signal resource set is associated with the second reference signal resource set, the at least one codeword includes a first codeword and a second codeword; the first codeword is mapped to the v The first layer group in layers, the second codeword is mapped to the second layer group in the v layers; the first layer group and the second layer group include the v layers respectively at least one layer in the first layer group; which or which layer of the v layers is included in the first layer group is related to the position of the DMRS port in the first CDM group in the first port sequence, and the second Which layer or layers of the v layers are included in the second layer group is related to the position of the DMRS port in the second CDM group in the first port sequence.

As an embodiment, the meaning of the sentence that the mapping method of the at least one codeword to the v layers is related to the first port sequence includes: the first layer group includes the v layers Which or which layers of the first CDM group are related to the position of the DMRS port in the first port sequence, and the second layer group includes which or which layers of the v layers are related to the first CDM group The positions of the DMRS ports in the two CDM groups in the first port sequence are related.

As an embodiment, the meaning of which or which layers of the v layers are included in the first layer group in the sentence includes: what is the index of the layer in the first layer group; The meaning of which or which layers of the v layers are included in the second layer group includes: what is the index of the layer in the second layer group.

As an embodiment, the meaning of which or which layers of the v layers are included in the sentence includes: each layer in the first layer group is the first layer in the v layers How many layers; said sentence said second layer group includes which or which layers in said v layers means include: each layer in said second layer group is the first layer in said v layers .

As an embodiment, the meaning of the sentence that the mapping manner of the at least one codeword to the v layers is related to the first port sequence includes: the number of layers included in the first layer group is equal to the The first number of ports, the number of layers included in the second layer group is equal to the second number of ports, the first layer group includes which or which layers of the v layers are related to the first CDM group The position of the DMRS port in the first port sequence is related to the position of the DMRS port in the first port sequence, which or which layers of the v layers are included in the second layer group are related to the DMRS ports in the second CDM group in the first position in the port sequence.

As an embodiment, the first layer group includes v1 layers, the second layer group includes v2 layers, and the v1 and v2 are respectively equal to the first number of ports and the second number of ports; The first CDM group includes v1 DMRS ports among the v DMRS ports, and the second CDM group includes v2 DMRS ports among the v DMRS ports.

As a sub-embodiment of the above embodiment, the indexes of the v1 layers are respectively the indexes of the v1 DMRS ports in the first port sequence, and the indexes of the v2 layers are respectively the indexes of the v2 DMRS ports Indexing in the first port sequence; the v DMRS ports are indexed sequentially from left to right in the first port sequence.

As a sub-embodiment of the above-mentioned embodiment, the v1 layers are respectively the first of the v layers

layer,...,th

layer, the v1 DMRS ports are respectively the first port sequence from left to right in the first port sequence

DMRS ports, ..., the

DMRS ports; the v2 layers are respectively the first in the v layers

layer,...,th

layer, the v2 DMRS ports are respectively the first port sequence from left to right in the first port sequence

DMRS ports, ..., the

DMRS ports.

As a sub-embodiment of the foregoing embodiment, the DMRSs of the v1 layers are respectively mapped to the v1 DMRS ports, and the DMRSs of the v2 layers are respectively mapped to the v2 DMRS ports.

As an example, the

is discontinuous, the

is discontinuous.

As an embodiment, when the first field in the first signaling indicates that the second field in the first signaling and the third field in the first signaling are respectively the same as the When the first reference signal resource set is associated with the second reference signal resource set, the first layer group includes which or which layers of the v layers are connected to the DMRS ports in the first CDM group The position in the first port sequence is related, the second layer group includes which or which layer of the v layers is related to the position of the DMRS port in the second CDM group in the first port sequence related.

As an embodiment, when the first field in the first signaling indicates one of the second field in the first signaling and the third field in the first signaling When reserved, which or which layers of the v layers are included in the first layer group has nothing to do with the position of the DMRS port in the first CDM group in the first port sequence, and the second Which or which layers of the v layers are included in the layer group has nothing to do with the positions of the DMRS ports in the second CDM group in the first port sequence.

Example 18

Embodiment 18 illustrates a schematic diagram of the spatial relationship of the first CDM group and the spatial relationship of the second CDM group according to an embodiment of the present application; as shown in FIG. 18 . In Embodiment 18, when the first field in the first signaling indicates that the second field in the first signaling and the third field in the first signaling are respectively the same as When the first reference signal resource set is associated with the second reference signal resource set, at least one reference signal resource in the first reference signal resource set is used by the first node to determine the first CDM The spatial relationship of the group, at least one reference signal resource in the second set of reference signal resources is used by the first node to determine the spatial relationship of the second CDM group.

As an embodiment, the first subset of reference signal resources is used to determine the spatial relationship of the first CDM group, and the second subset of reference signal resources is used to determine the spatial relationship of the second CDM group .

As a sub-embodiment of the above embodiment, each reference signal resource in the first reference signal resource subset is used to determine the spatial relationship of a DMRS port in the first CDM group, and the second reference signal Each reference signal resource in the resource subset is used to determine the spatial relationship of a DMRS port in the second CDM group.

As an embodiment, the first reference signal resource is used to determine the spatial relationship of each DMRS port in the first CDM group, and the second reference signal resource is used to determine the spatial relationship of each DMRS port in the second CDM group The spatial relationship of each DMRS port.

Typically, the spatial relationship includes antenna ports.

Typically, the spatial relationship includes TCI status.

As an embodiment, the spatial relationship includes a QCL (Quasi Co-Location, quasi-co-location) relationship.

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

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

As an embodiment, the spatial relationship includes precoding.

As an embodiment, the spatial relationship includes a spatial reception parameter (Spatial Rx parameter).

As an embodiment, the spatial relationship includes large-scale properties; the large-scale properties include delay spread, Doppler spread, Doppler shift, average delay, or in the space receiving parameters One or more.

As an embodiment, the phrase that one reference signal resource is used to determine the spatial relationship of a CDM group includes: the one reference signal resource is used to determine the spatial relationship of each DMRS port in the one CDM group.

As an embodiment, the phrase that one reference signal resource is used to determine the spatial relationship of a CDM group includes: the one reference signal resource is used to determine the spatial relationship of at least one DMRS port in the one CDM group.

As an embodiment, the meaning of the sentence that one reference signal resource is used to determine the spatial relationship of one DMRS port includes: the one DMRS port is mapped to the same antenna port as the reference signal port of the one reference signal resource.

As an embodiment, the meaning of the sentence that one reference signal resource is used to determine the spatial relationship of one DMRS port includes: the one DMRS port is precoded and mapped to the same antenna port as the reference signal port of the one reference signal resource .

As an embodiment, the meaning of the sentence that one reference signal resource is used to determine the spatial relationship of one DMRS port includes: the reference signal port of the one reference signal resource and the one DMRS port are quasi co-located.

As an embodiment, the meaning of the sentence that one reference signal resource is used to determine the spatial relationship of one DMRS port includes: the reference signal port of the one reference signal resource is quasi-co-located with the one DMRS port and the corresponding QCL type includes QCL -Type D.

As an embodiment, the meaning of the sentence that one reference signal resource is used to determine the spatial relationship of one DMRS port includes: the first node uses the same spatial domain filter to send reference signals in the one reference signal resource and in the One DMRS port sends DMRS.

Typically, when the first field in the first signaling indicates that the second field in the first signaling and the third field in the first signaling are respectively When a reference signal resource set is associated with the second reference signal resource set, any DMRS port in the first CDM group is always mapped to a reference signal resource in the first reference signal resource set An antenna port with the same signal port, any DMRS port in the second CDM group is always mapped to an antenna port with the same reference signal port of a reference signal resource in the second reference signal resource set.

As a sub-embodiment of the above embodiment, any DMRS port in the first CDM group is precoded and mapped to the same antenna as the reference signal port of a reference signal resource in the first reference signal resource set Any DMRS port in the second CDM group is precoded and mapped to an antenna port that is the same as a reference signal port of a reference signal resource in the second reference signal resource set.

As an embodiment, when the first field in the first signaling indicates that the third field in the first signaling is reserved and the second field in the first signaling When associated with a given reference signal resource set, the reference signal resources in the given reference signal resource set are used to determine the spatial relationship of all DRMS ports in the first port set; the given reference signal resource set is the first reference signal resource set or the second reference signal resource set.

As a sub-embodiment of the foregoing embodiment, any DMRS port in the first port set is mapped to an antenna port that is the same as a reference signal port of a reference signal resource in the given reference signal resource set.

As a sub-embodiment of the above-mentioned embodiment, any DMRS port in the first port set is precoded and mapped to the same antenna port as the reference signal port of a reference signal resource in the given reference signal resource set .

As an embodiment, when the first field in the first signaling indicates that the second field in the first signaling and the third field in the first signaling are respectively the same as the When the first reference signal resource set is associated with the second reference signal resource set, the at least one codeword includes a first codeword and a second codeword, and the first codeword is mapped to the v The first layer group in the layer, the second codeword is mapped to the second layer group in the v layers; at least one reference signal resource in the first reference signal resource set is used to determine the For the spatial relationship of the first layer group, at least one reference signal resource in the second reference signal resource set is used to determine the spatial relationship of the second layer group.

As a sub-embodiment of the above embodiment, the first given layer is any layer in the first layer group, and the second given layer is any layer in the second layer group; sending the first The antenna port of a given layer and the reference signal port of a reference signal resource in the first reference signal resource set are quasi co-located and the corresponding QCL type includes QCL-TypeD, and the antenna port of the second given layer is sent It is quasi co-located with a reference signal port of a reference signal resource in the second reference signal resource set and the corresponding QCL type includes QCL-TypeD.

As a sub-embodiment of the above embodiment, the first given layer is any layer in the first layer group, and the second given layer is any layer in the second layer group; the first The node uses the same spatial domain filter to transmit the reference signal and the first given layer in one reference signal resource in the first reference signal resource set, and uses the same spatial domain filter to transmit the reference signal in the second reference signal resource The reference signal is sent in one reference signal resource in the set and the second given layer is sent.

Example 19

Embodiment 19 illustrates a schematic diagram of which of the K candidate port sequence lists the target port sequence table is related to the first field in the first signaling according to an embodiment of the present application; as shown in FIG. 19 .

As an example, the K is not greater than 128.

As an embodiment, any candidate port sequence table in the K candidate port sequence tables includes multiple port sequences, and any port sequence in the multiple port sequences includes at least one DMRS port.

As a sub-embodiment of the above embodiment, any candidate port sequence table in the K candidate port sequence tables includes a plurality of rows, and the plurality of rows correspond to the plurality of port sequences one by one, and the plurality of rows Any one of the lines includes the corresponding port sequence.

As an embodiment, if any port sequence in the K candidate port sequence list includes multiple DMRS ports, the multiple DMRS ports are arranged sequentially from left to right.

As an embodiment, the first node determines the target port sequence list according to the first field in the first signaling.

As an embodiment, the first bit group in the first signaling indicates the first port sequence from the target port sequence table.

As an embodiment, the K candidate port sequence tables include a first port sequence table and a second port sequence table; when the first field in the first signaling indicates all When the second field and the third field in the first signaling are respectively associated with the first reference signal resource set and the second reference signal resource set, the target port sequence table is the A second port sequence table; when the first field in the first signaling indicates one of the second field in the first signaling and the third field in the first signaling When reserved, the target port sequence list is the first port sequence list.

As an embodiment, the first given port sequence is any port sequence in the first port sequence table that includes multiple DMRS ports; the first given port and the second given port are the first given port Any two DMRS ports in the port sequence; if the first given port is located to the left of the second given port in the first given port sequence, the first given port is smaller than the second given port Specify the port.

As an embodiment, the second given port sequence is a port sequence including a plurality of DMRS ports in the second port sequence list; the third given port and the fourth given port are the second given ports two DMRS ports in the sequence; the third given port is to the left of the fourth given port in the second given port sequence, and the third given port is larger than the fourth given port .

As an embodiment, the number of port sequences included in the first port sequence table is not equal to the number of port sequences included in the second port sequence table.

As an embodiment, the number of port sequences included in the first port sequence table is smaller than the number of port sequences included in the second port sequence table.

As an embodiment, the number of port sequences included in the first port sequence table is equal to the number of port sequences included in the second port sequence table.

As an embodiment, there is a port sequence in the second port sequence table that does not belong to the first port sequence table.

Typically, the maximum number of DMRS ports included in the port sequence in the first port sequence table is equal to the maximum number of DMRS ports included in the port sequence in the second port sequence table.

Typically, the maximum value of DMRS ports in the first port sequence list is equal to the maximum value of DMRS ports in the second port sequence list.

As an embodiment, the first port sequence table and the second port sequence table correspond to the same DMRS type.

As an embodiment, the first port sequence table and the second port sequence table correspond to the same maximum length of the DMRS.

As an embodiment, both the first port sequence table and the second port sequence table are disabled corresponding to a transform precoder (transform precoder).

As an embodiment, the first port sequence table and the second port sequence table correspond to the same rank.

As a sub-embodiment of the above-mentioned embodiment, the same rank is equal to the v.

Example 20

Embodiment 20 illustrates a structural block diagram of a processing device used in the first node device according to an embodiment of the present application; as shown in FIG. 20 . In FIG. 20 , the processing device 2000 in the first node device includes a first receiver 2001 and a first transmitter 2002 .

In Embodiment 20, the first receiver 2001 receives the first signaling, where the first signaling indicates scheduling information of the first signal; the first transmitter 2002 sends the first signal.

In embodiment 20, the first signaling includes a first field, a second field and a third field; the first field in the first signaling indicates the first field in the first signaling The relationship between the second field and the third field in the first signaling and the first set of reference signal resources and the second set of reference signal resources; the first signal carries at least one codeword; the first The signal includes v layers, where v is a positive integer greater than 1; the at least one codeword is mapped to the v layers; the first signaling includes a first bit group, and in the first signaling The first bit group of indicates the first port sequence arranged in sequence; the first port sequence includes v DMRS ports; the first port sequence includes a first CDM group and a second CDM group, and the first CDM The group and the second CDM group respectively include at least one DMRS port in the v DMRS ports; whether the mapping method of the at least one codeword to the v layers is related to the first port sequence is related to the The first field in the first signaling is related.

As an embodiment, the second field in the first signaling and the third field in the first signaling are related to the first reference signal resource set and the second reference signal resource set The relationship between is one of the first candidate relationship, the second candidate relationship or the third candidate relationship; the first field in the first signaling indicates the first candidate relationship, the second A candidate relationship or one of the third candidate relationship; the first candidate relationship is that the second field in the first signaling is associated with the first reference signal resource set and the first signaling The third field in the signaling is reserved, the second candidate relationship is that the second field in the first signaling is associated with the second set of reference signal resources and the first signaling The third field in is reserved, and the third candidate relationship is that the second field in the first signaling and the third field in the first signaling are respectively related to the first A reference signal resource set is associated with the second reference signal resource set.

As an embodiment, it is characterized in that when the first field in the first signaling indicates the second field in the first signaling and the third field in the first signaling When domains are respectively associated with the first reference signal resource set and the second reference signal resource set, the mapping manner of the at least one codeword to the v layers is related to the first port sequence; When the first field in the first signaling indicates that one of the second field in the first signaling and the third field in the first signaling is reserved, The mapping manner of the at least one codeword to the v layers has nothing to do with the first port sequence.

As an embodiment, the number of DMRS ports included in the first CDM group is equal to the first number of ports, and the number of DMRS ports included in the second CDM group is equal to the second number of ports; when the first signaling in The first field indicates that the second field in the first signaling and the third field in the first signaling are respectively related to the first reference signal resource set and the second reference signal When resource sets are associated, the at least one codeword includes a first codeword and a second codeword; the first codeword is mapped to a first layer group in the v layers, and the second codeword Be mapped to the second layer group in the v layers; the first layer group and the second layer group respectively include at least one layer in the v layers; the layers included in the first layer group The number of layers is equal to the first number of ports, and the number of layers included in the second layer group is equal to the second number of ports.

As an embodiment, when the first field in the first signaling indicates that the second field in the first signaling and the third field in the first signaling are respectively the same as the When the first reference signal resource set is associated with the second reference signal resource set, the at least one codeword includes a first codeword and a second codeword; the first codeword is mapped to the v The first layer group in the layer, the second codeword is mapped to the second layer group in the v layers; the first layer group and the second layer group respectively include the at least one layer; the first layer group includes which or which layer of the v layers is related to the position of the DMRS port in the first CDM group in the first port sequence, and the second Which layer or layers of the v layers are included in the layer group is related to the position of the DMRS port in the second CDM group in the first port sequence.

As an embodiment, when the first field in the first signaling indicates that the second field in the first signaling and the third field in the first signaling are respectively the same as the When the first reference signal resource set is associated with the second reference signal resource set, at least one reference signal resource in the first reference signal resource set is used to determine the spatial relationship of the first CDM group, so At least one reference signal resource in the second set of reference signal resources is used to determine the spatial relationship of the second CDM group.

As an embodiment, the first port sequence is a port sequence in the target port sequence list; the target port sequence list is one of K candidate port sequence lists, and K is a positive integer greater than 1; the target Which one of the K candidate port sequence tables is related to the first field in the first signaling.

As an embodiment, the position of the second field in the first signaling is before the third field; the first set of reference signal resources includes a set of SRS resources, and the second set of reference signal resources A set of SRS resources is included; any reference signal resource in the first set of reference signal resources includes an SRS resource, and any reference signal resource in the second set of reference signal resources includes an SRS resource; the first Any reference signal resource in the set of reference signal resources includes at least one reference signal port, and any reference signal resource in the second set of reference signal resources includes at least one reference signal port; the set of reference signal resources in the first set of reference signal resources Any reference signal port is an SRS port, and any reference signal port in the second reference signal resource set is an SRS port.

As an embodiment, the first node device is user equipment.

As an embodiment, the first node device is a relay node device.

As an embodiment, the first receiver 2001 includes {antenna 452, receiver 454, receiving processor 456, multi-antenna receiving processor 458, controller/processor 459, memory 460, data source in Embodiment 4 467} at least one of.

As an embodiment, the first transmitter 2002 includes {antenna 452, transmitter 454, transmit processor 468, multi-antenna transmit processor 457, controller/processor 459, memory 460, data source in Embodiment 4 467} at least one of.

Example 21

Embodiment 21 illustrates a structural block diagram of a processing device used in a second node device according to an embodiment of the present application; as shown in FIG. 21 . In FIG. 21 , the processing device 2100 in the second node device includes a second transmitter 2101 and a second receiver 2102 .

In Embodiment 21, the second transmitter 2101 sends the first signaling, where the first signaling indicates scheduling information of the first signal; the second receiver 2102 receives the first signal.

In embodiment 21, the first signaling includes a first field, a second field and a third field; the first field in the first signaling indicates the first field in the first signaling The relationship between the second field and the third field in the first signaling and the first set of reference signal resources and the second set of reference signal resources; the first signal carries at least one codeword; the first The signal includes v layers, where v is a positive integer greater than 1; the at least one codeword is mapped to the v layers; the first signaling includes a first bit group, and in the first signaling The first bit group of indicates the first port sequence arranged in sequence; the first port sequence includes v DMRS ports; the first port sequence includes a first CDM group and a second CDM group, and the first CDM The group and the second CDM group respectively include at least one DMRS port in the v DMRS ports; whether the mapping method of the at least one codeword to the v layers is related to the first port sequence is related to the The first field in the first signaling is related.

As an embodiment, when the first field in the first signaling indicates that the second field in the first signaling and the third field in the first signaling are respectively the same as the When the first reference signal resource set is associated with the second reference signal resource set, the mapping manner of the at least one codeword to the v layers is related to the first port sequence; when the second When the first field in a signaling indicates that one of the second field in the first signaling and the third field in the first signaling is reserved, the at least one The mapping manner of codewords to the v layers has nothing to do with the first port sequence.

As an embodiment, the second node device is a base station device.

As an embodiment, the second node device is user equipment.

As an embodiment, the second node device is a relay node device.

As an embodiment, the second transmitter 2101 includes {antenna 420, transmitter 418, transmit processor 416, multi-antenna transmit processor 471, controller/processor 475, memory 476} in Embodiment 4 at least one.

As an embodiment, the second receiver 2102 includes {antenna 420, receiver 418, receiving processor 470, multi-antenna receiving processor 472, controller/processor 475, memory 476} in Embodiment 4 at least one.

Those skilled in the art can understand that all or part of the steps in the above method can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium, such as a read-only memory, a hard disk or an optical disk. Optionally, all or part of the steps in the foregoing embodiments may also be implemented using one or more integrated circuits. Correspondingly, each module unit in the above-mentioned embodiments may be implemented in the form of hardware, or may be implemented in the form of software function modules, and the present application is not limited to any specific combination of software and hardware. The user equipment, terminal and UE in this application include but are not limited to drones, communication modules on drones, remote-controlled aircraft, aircraft, small aircraft, mobile phones, tablet computers, notebooks, vehicle-mounted communication equipment, vehicles, vehicles, RSU, wireless sensor, network card, IoT terminal, RFID terminal, NB-IOT terminal, MTC (Machine Type Communication, machine type communication) terminal, eMTC (enhanced MTC, enhanced MTC) terminal, data card, network card, vehicle Communication equipment, low-cost mobile phones, low-cost tablet computers and other wireless communication equipment. The base station or system equipment in this application includes but not limited to macrocell base station, microcell base station, small cell base station, home base station, relay base station, eNB, gNB, TRP (Transmitter Receiver Point, sending and receiving node), GNSS, relay Satellites, satellite base stations, aerial base stations, RSU (Road Side Unit, roadside unit), drones, test equipment, such as wireless communication equipment such as transceivers or signaling testers that simulate some functions of base stations.

Those skilled in the art will appreciate that the present invention may be embodied in other specified forms without departing from its core or essential characteristics. Therefore, the presently disclosed embodiments are to be regarded as descriptive rather than restrictive in any way. The scope of the invention is determined by the appended claims rather than the foregoing description, and all changes within their equivalent meaning and range are deemed to be embraced therein.

Claims

A first node device used for wireless communication, characterized in that it includes:

The first receiver receives first signaling, where the first signaling indicates scheduling information of the first signal;

a first transmitter, transmitting the first signal;

Wherein, the first signaling includes a first field, a second field and a third field; the first field in the first signaling indicates the second field and the third field in the first signaling The relationship between the third field in the first signaling and the first set of reference signal resources and the second set of reference signal resources; the first signal carries at least one codeword; the first signal includes v layer, the v is a positive integer greater than 1; the at least one codeword is mapped to the v layers; the first signaling includes a first bit group, and the first bit in the first signaling A bit group indicates a first port sequence arranged in sequence; the first port sequence includes v DMRS ports; the first port sequence includes a first CDM group and a second CDM group, and the first CDM group and the The second CDM group respectively includes at least one DMRS port in the v DMRS ports; whether the mapping method of the at least one codeword to the v layers is related to the first port sequence and the first signaling related to the first domain in .
The first node device according to claim 1, wherein the second field in the first signaling and the third field in the first signaling are related to the first reference signal The relationship between the resource set and the second reference signal resource set is one of a first candidate relationship, a second candidate relationship or a third candidate relationship; the first field in the first signaling indicates One of the first candidate relationship, the second candidate relationship or the third candidate relationship; the first candidate relationship is the second field in the first signaling and the first reference The signal resource sets are associated and the third field in the first signaling is reserved, and the second candidate relationship is the second field in the first signaling and the second reference signal resource sets are associated and the third field in the first signaling is reserved, and the third candidate relationship is the second field in the first signaling and the The third field of is respectively associated with the first set of reference signal resources and the second set of reference signal resources.
The first node device according to claim 1 or 2, wherein when the first field in the first signaling indicates the second field and the first field in the first signaling When the third field in a signaling is respectively associated with the first reference signal resource set and the second reference signal resource set, the mapping manner of the at least one codeword to the v layers related to the first port sequence; when the first field in the first signaling indicates the second field in the first signaling and the third field in the first signaling When one of the domains is reserved, the mapping manner of the at least one codeword to the v layers has nothing to do with the first port sequence.
The first node device according to any one of claims 1 to 3, wherein the number of DMRS ports included in the first CDM group is equal to the first number of ports, and the number of DMRS ports included in the second CDM group The number of ports is equal to the second number of ports; when the first field in the first signaling indicates the second field in the first signaling and the third field in the first signaling When domains are respectively associated with the first reference signal resource set and the second reference signal resource set, the at least one codeword includes a first codeword and a second codeword; the first codeword is mapped to The first layer group in the v layers, the second codeword is mapped to the second layer group in the v layers; the first layer group and the second layer group respectively include the At least one of the v layers; the number of layers included in the first layer group is equal to the first number of ports, and the number of layers included in the second layer group is equal to the second number of ports.
The first node device according to any one of claims 1 to 4, wherein when the first field in the first signaling indicates the second field and the third field in the first signaling are respectively associated with the first reference signal resource set and the second reference signal resource set, the at least one codeword includes the first codeword and A second codeword; the first codeword is mapped to a first layer group in the v layers, and the second codeword is mapped to a second layer group in the v layers; the second codeword is mapped to a second layer group in the v layers; The layer group and the second layer group respectively include at least one layer in the v layers; the first layer group includes which or which layers in the v layers are related to the first CDM group The position of the DMRS port in the first port sequence is related, which or which layer of the v layers is included in the second layer group is related to the DMRS port in the second CDM group in the first port sequence related to the position in the .
The first node device according to any one of claims 1 to 5, wherein when the first field in the first signaling indicates the second field and the third field in the first signaling are respectively associated with the first set of reference signal resources and the second set of reference signal resources, at least one of the first set of reference signal resources Reference signal resources are used to determine the spatial relationship of the first CDM group, and at least one reference signal resource in the second set of reference signal resources is used to determine the spatial relationship of the second CDM group.
The first node device according to any one of claims 1 to 6, wherein the first port sequence is a port sequence in the target port sequence list; the target port sequence list is K candidate One of the port sequence lists, K is a positive integer greater than 1; which of the K candidate port sequence lists is related to the first field in the first signaling.
A second node device used for wireless communication, characterized in that it includes:

a second transmitter, sending first signaling, where the first signaling indicates scheduling information of the first signal;

a second receiver, receiving the first signal;

Wherein, the first signaling includes a first field, a second field and a third field; the first field in the first signaling indicates the second field and the third field in the first signaling The relationship between the third field in the first signaling and the first set of reference signal resources and the second set of reference signal resources; the first signal carries at least one codeword; the first signal includes v layer, the v is a positive integer greater than 1; the at least one codeword is mapped to the v layers; the first signaling includes a first bit group, and the first bit in the first signaling A bit group indicates a first port sequence arranged in sequence; the first port sequence includes v DMRS ports; the first port sequence includes a first CDM group and a second CDM group, and the first CDM group and the The second CDM group respectively includes at least one DMRS port in the v DMRS ports; whether the mapping method of the at least one codeword to the v layers is related to the first port sequence and the first signaling related to the first domain in .
The second node device according to claim 8, wherein the second field in the first signaling and the third field in the first signaling are related to the first reference signal The relationship between the resource set and the second reference signal resource set is one of a first candidate relationship, a second candidate relationship or a third candidate relationship; the first field in the first signaling indicates One of the first candidate relationship, the second candidate relationship or the third candidate relationship; the first candidate relationship is the second field in the first signaling and the first reference The signal resource sets are associated and the third field in the first signaling is reserved, and the second candidate relationship is the second field in the first signaling and the second reference signal resource sets are associated and the third field in the first signaling is reserved, and the third candidate relationship is the second field in the first signaling and the The third field of is respectively associated with the first set of reference signal resources and the second set of reference signal resources.
The second node device according to claim 8 or 9, wherein when the first field in the first signaling indicates the second field and the first field in the first signaling When the third field in a signaling is respectively associated with the first reference signal resource set and the second reference signal resource set, the mapping manner of the at least one codeword to the v layers related to the first port sequence; when the first field in the first signaling indicates the second field in the first signaling and the third field in the first signaling When one of the domains is reserved, the mapping manner of the at least one codeword to the v layers has nothing to do with the first port sequence.
The second node device according to any one of claims 8 to 10, wherein the number of DMRS ports included in the first CDM group is equal to the first number of ports, and the DMRS ports included in the second CDM group The number of ports is equal to the second number of ports; when the first field in the first signaling indicates the second field in the first signaling and the third field in the first signaling When domains are respectively associated with the first reference signal resource set and the second reference signal resource set, the at least one codeword includes a first codeword and a second codeword; the first codeword is mapped to The first layer group in the v layers, the second codeword is mapped to the second layer group in the v layers; the first layer group and the second layer group respectively include the At least one of the v layers; the number of layers included in the first layer group is equal to the first number of ports, and the number of layers included in the second layer group is equal to the second number of ports.
The second node device according to any one of claims 8 to 11, wherein when the first field in the first signaling indicates the second field and the third field in the first signaling are respectively associated with the first reference signal resource set and the second reference signal resource set, the at least one codeword includes the first codeword and A second codeword; the first codeword is mapped to a first layer group in the v layers, and the second codeword is mapped to a second layer group in the v layers; the second codeword is mapped to a second layer group in the v layers; The layer group and the second layer group respectively include at least one layer in the v layers; the first layer group includes which or which layers in the v layers are related to the first CDM group The position of the DMRS port in the first port sequence is related, which or which layer of the v layers is included in the second layer group is related to the DMRS port in the second CDM group in the first port sequence related to the position in the .
The second node device according to any one of claims 8 to 12, wherein when the first field in the first signaling indicates the second field and the third field in the first signaling are respectively associated with the first set of reference signal resources and the second set of reference signal resources, at least one of the first set of reference signal resources Reference signal resources are used to determine the spatial relationship of the first CDM group, and at least one reference signal resource in the second set of reference signal resources is used to determine the spatial relationship of the second CDM group.
The second node device according to any one of claims 8 to 13, wherein the first port sequence is a port sequence in the target port sequence table; the target port sequence table is K candidate One of the port sequence lists, K is a positive integer greater than 1; which of the K candidate port sequence lists is related to the first field in the first signaling.
A method used in a first node of wireless communication, comprising:

receiving first signaling, where the first signaling indicates scheduling information of a first signal;

sending said first signal;

Wherein, the first signaling includes a first field, a second field and a third field; the first field in the first signaling indicates the second field and the third field in the first signaling The relationship between the third field in the first signaling and the first set of reference signal resources and the second set of reference signal resources; the first signal carries at least one codeword; the first signal includes v layer, the v is a positive integer greater than 1; the at least one codeword is mapped to the v layers; the first signaling includes a first bit group, and the first bit in the first signaling A bit group indicates a first port sequence arranged in sequence; the first port sequence includes v DMRS ports; the first port sequence includes a first CDM group and a second CDM group, and the first CDM group and the The second CDM group respectively includes at least one DMRS port in the v DMRS ports; whether the mapping method of the at least one codeword to the v layers is related to the first port sequence and the first signaling related to the first domain in .
The method according to claim 15, wherein the second field in the first signaling and the third field in the first signaling are related to the first reference signal resource set and The relationship between the second reference signal resource sets is one of a first candidate relationship, a second candidate relationship or a third candidate relationship; the first field in the first signaling indicates the first A candidate relationship, one of the second candidate relationship or the third candidate relationship; the first candidate relationship is the second field in the first signaling and the first reference signal resource set associated and the third field in the first signaling is reserved, the second candidate relationship is that the second field in the first signaling is associated with the second set of reference signal resources and the third field in the first signaling is reserved, the third candidate relationship is the second field in the first signaling and the A third domain is respectively associated with the first set of reference signal resources and the second set of reference signal resources.
The method according to claim 15 or 16, wherein when the first field in the first signaling indicates that the second field in the first signaling and the first signaling When the third field in is respectively associated with the first reference signal resource set and the second reference signal resource set, the mapping method of the at least one codeword to the v layers is the same as the The first port sequence is relevant; when the first field in the first signaling indicates one of the second field in the first signaling and the third field in the first signaling When reserved, the mapping manner of the at least one codeword to the v layers has nothing to do with the first port sequence.
The method according to any one of claims 15 to 17, wherein the number of DMRS ports included in the first CDM group is equal to the first number of ports, and the number of DMRS ports included in the second CDM group equal to the second port number; when the first field in the first signaling indicates that the second field in the first signaling and the third field in the first signaling are respectively the same as When the first reference signal resource set is associated with the second reference signal resource set, the at least one codeword includes a first codeword and a second codeword; the first codeword is mapped to the v The first layer group in layers, the second codeword is mapped to the second layer group in the v layers; the first layer group and the second layer group include the v layers respectively At least one of the layers; the number of layers included in the first layer group is equal to the first number of ports, and the number of layers included in the second layer group is equal to the second number of ports.
The method according to any one of claims 15 to 18, wherein when the first field in the first signaling indicates the second field in the first signaling and the When the third field in the first signaling is respectively associated with the first reference signal resource set and the second reference signal resource set, the at least one codeword includes a first codeword and a second codeword word; the first codeword is mapped to the first layer group in the v layers, and the second codeword is mapped to the second layer group in the v layers; the first layer group and the second layer group respectively include at least one layer in the v layers; the first layer group includes which or which layer in the v layers is in the same position as the DMRS port in the first CDM group The position in the first port sequence is related, the second layer group includes which or which layer of the v layers is related to the position of the DMRS port in the second CDM group in the first port sequence related.
The method according to any one of claims 15 to 19, wherein when the first field in the first signaling indicates the second field in the first signaling and the When the third field in the first signaling is respectively associated with the first reference signal resource set and the second reference signal resource set, at least one reference signal resource in the first reference signal resource set is used to determine the spatial relationship of the first CDM group, and at least one reference signal resource in the second set of reference signal resources is used to determine the spatial relationship of the second CDM group.
The method according to any one of claims 15 to 20, wherein the first port sequence is a port sequence in a target port sequence list; the target port sequence list is K candidate port sequence lists One of them, K is a positive integer greater than 1; which of the K candidate port sequence lists is related to the first field in the first signaling.
A method used in a second node for wireless communication, comprising:

sending first signaling, where the first signaling indicates scheduling information of the first signal;

receiving the first signal;

Wherein, the first signaling includes a first field, a second field and a third field; the first field in the first signaling indicates the second field and the third field in the first signaling The relationship between the third field in the first signaling and the first set of reference signal resources and the second set of reference signal resources; the first signal carries at least one codeword; the first signal includes v layer, the v is a positive integer greater than 1; the at least one codeword is mapped to the v layers; the first signaling includes a first bit group, and the first bit in the first signaling A bit group indicates a first port sequence arranged in sequence; the first port sequence includes v DMRS ports; the first port sequence includes a first CDM group and a second CDM group, and the first CDM group and the The second CDM group respectively includes at least one DMRS port in the v DMRS ports; whether the mapping method of the at least one codeword to the v layers is related to the first port sequence and the first signaling related to the first domain in .
The method according to claim 22, wherein the second field in the first signaling and the third field in the first signaling are related to the first reference signal resource set and The relationship between the second reference signal resource sets is one of a first candidate relationship, a second candidate relationship or a third candidate relationship; the first field in the first signaling indicates the first A candidate relationship, one of the second candidate relationship or the third candidate relationship; the first candidate relationship is the second field in the first signaling and the first reference signal resource set associated and the third field in the first signaling is reserved, the second candidate relationship is that the second field in the first signaling is associated with the second set of reference signal resources and the third field in the first signaling is reserved, the third candidate relationship is the second field in the first signaling and the A third domain is respectively associated with the first set of reference signal resources and the second set of reference signal resources.
The method according to claim 22 or 23, wherein when the first field in the first signaling indicates that the second field in the first signaling and the first signaling When the third field in is respectively associated with the first reference signal resource set and the second reference signal resource set, the mapping method of the at least one codeword to the v layers is the same as the The first port sequence is relevant; when the first field in the first signaling indicates one of the second field in the first signaling and the third field in the first signaling When reserved, the mapping manner of the at least one codeword to the v layers has nothing to do with the first port sequence.
The method according to any one of claims 22 to 24, wherein the number of DMRS ports included in the first CDM group is equal to the first number of ports, and the number of DMRS ports included in the second CDM group equal to the second port number; when the first field in the first signaling indicates that the second field in the first signaling and the third field in the first signaling are respectively the same as When the first reference signal resource set is associated with the second reference signal resource set, the at least one codeword includes a first codeword and a second codeword; the first codeword is mapped to the v The first layer group in layers, the second codeword is mapped to the second layer group in the v layers; the first layer group and the second layer group include the v layers respectively At least one of the layers; the number of layers included in the first layer group is equal to the first number of ports, and the number of layers included in the second layer group is equal to the second number of ports.
The method according to any one of claims 22 to 25, wherein when the first field in the first signaling indicates the second field in the first signaling and the When the third field in the first signaling is respectively associated with the first reference signal resource set and the second reference signal resource set, the at least one codeword includes a first codeword and a second codeword word; the first codeword is mapped to the first layer group in the v layers, and the second codeword is mapped to the second layer group in the v layers; the first layer group and the second layer group respectively include at least one layer in the v layers; the first layer group includes which or which layer in the v layers is in the same position as the DMRS port in the first CDM group The position in the first port sequence is related, the second layer group includes which or which layer of the v layers is related to the position of the DMRS port in the second CDM group in the first port sequence related.
The method according to any one of claims 22 to 26, wherein when the first field in the first signaling indicates the second field in the first signaling and the When the third field in the first signaling is respectively associated with the first reference signal resource set and the second reference signal resource set, at least one reference signal resource in the first reference signal resource set is used to determine the spatial relationship of the first CDM group, and at least one reference signal resource in the second set of reference signal resources is used to determine the spatial relationship of the second CDM group.
The method according to any one of claims 22 to 27, wherein the first port sequence is a port sequence in a target port sequence list; the target port sequence list is K candidate port sequence lists One of them, K is a positive integer greater than 1; which of the K candidate port sequence lists is related to the first field in the first signaling.