A method and apparatus used in a node for wireless communication

Abstract

The application discloses a method and device used in a node for wireless communication. A first node receives first signaling and transmits a first signal. The first signaling indicates scheduling information of the first signal; the first signal includes a first sub-signal and a second sub-signal; a first field and a second field in the first signaling are respectively used to determine antenna ports for transmitting the first sub-signal and the second sub-signal, or are respectively used to determine precoders of the first sub-signal and the second sub-signal; a load of bits included in the second field in the first signaling is related to K1 candidate integers, and a relationship between the load of bits included in the second field in the first signaling and the K1 candidate integers is related to whether time domain resources occupied by the first sub-signal and time domain resources occupied by the second sub-signal overlap. The above method meets different requirements for the number of bits of the first field and the second field under different multiplexing modes.

Description

Technical Field

[0001] This application relates to transmission methods and apparatus in wireless communication systems, and more particularly to methods and apparatus for transmitting wireless signals in wireless communication systems supporting cellular networks. Background Technology

[0002] Multi-antenna technology is a key technology in 3GPP (3rd Generation Partner Project) LTE (Long-term Evolution) and NR (New Radio) systems. It gains additional spatial degrees of freedom by configuring multiple antennas at communication nodes, such as base stations or UEs (User Equipment). Multiple antennas, through beamforming, direct beams in a specific direction to improve communication quality. The degrees of freedom provided by multi-antenna systems can be used to improve transmission reliability and / or throughput. When multiple antennas belong to multiple TRPs (Transmitter Receiver Points) / 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 / TRPs / panels is supported to improve uplink reliability. In R17, uplink transmission of multi-beam / TRP / panel is achieved by configuring a DCI (Downlink Control Information) to include two different fields for indicating TPMI (Transmitted Precoding Matrix Indicator) and / or two different fields for indicating SRI (Sounding reference signal Resource Indicator). Summary of the Invention

[0003] Uplink transmission based on multiple beams / TRPs / panels can employ time-division multiplexing (i.e., occupying mutually orthogonal time-domain resources), as in R17, or space-division multiplexing or frequency-division multiplexing (i.e., occupying overlapping time-domain resources). Compared to time-division multiplexing, space-division or frequency-division multiplexing is more conducive to improving throughput, especially for users with good channel quality. The applicant's research has found that different multiplexing methods have different requirements for the number of bits used to indicate TPMI and / or SRI. How to design the fields used to indicate TPMI and / or SRI to meet the different needs under different multiplexing methods is a problem that needs to be solved. How to design the fields used to indicate TPMI and / or SRI under space-division and / or frequency-division multiplexing is another problem that needs to be solved.

[0004] To address the aforementioned issues, this application discloses a solution. It should be noted that although the above description uses cellular networks, uplink transmission, and multi-beam / TRP / panel as examples, this application is also applicable to other scenarios such as sidelink transmission, downlink transmission, and single-beam / TRP / panel, achieving similar technical effects to those in cellular networks, uplink transmission, and multi-beam / TRP / panel. Furthermore, adopting a unified solution for different scenarios (including but not limited to cellular networks, sidelink, uplink transmission, downlink transmission, multi-beam / TRP / panel, and single-beam / TRP / panel) helps reduce hardware complexity and cost. Where there is no conflict, the embodiments and features in the embodiments of the first node of this application can be applied to the second node, and vice versa. Where there is no conflict, the embodiments and features in the embodiments of this application can be arbitrarily combined with each other.

[0005] As an example, the interpretation of the terminology in this application is based on the definition in the 3GPP specification protocol TS36 series.

[0006] As an example, the interpretation of terms in this application is based on the definitions in the 3GPP specification protocol TS38 series.

[0007] As an example, the interpretation of terms in this application is based on the definitions in the 3GPP specification protocol TS37 series.

[0008] As an example, the interpretation of terms in this application is based on the definitions in the IEEE (Institute of Electrical and Electronics Engineers) specification protocols.

[0009] This application discloses a method used in a first node of wireless communication, characterized by comprising:

[0010] Receive the first signaling, which indicates the scheduling information of the first signal;

[0011] Send the first signal;

[0012] Wherein, the first signal includes a first sub-signal and a second sub-signal; the first signaling includes a first field and a second field; the first field and the second field in the first signaling are respectively used to determine the antenna port for transmitting the first sub-signal and the antenna port for transmitting the second sub-signal, or the first field and the second field in the first signaling are respectively used to determine the precoder for the first sub-signal and the precoder for the second sub-signal; the first field and the second field each include at least one bit, and the bit payload of the second field in the first signaling is related to K1 candidate integers, where K1 is a positive integer greater than 1; the K1 candidate integers and K1 layers The numbers correspond one-to-one; the relationship between the load of the bits included in the second field of the first signaling and the K1 candidate integers is related to whether the time domain resources occupied by the first sub-signal and the second sub-signal overlap; when the time domain resources occupied by the first sub-signal and the second sub-signal overlap, the load of the bits included in the second field of the first signaling is not less than the base-2 logarithm of the sum of the K1 candidate integers; when the time domain resources occupied by the first sub-signal and the second sub-signal are orthogonal to each other, the load of the bits included in the second field of the first signaling is not less than the base-2 logarithm of the maximum value among the K1 candidate integers.

[0013] As an example, the problem this application aims to solve includes: how to design fields for indicating TPMI and / or SRI to meet different bit count requirements under different multiplexing methods. The above method solves this problem by establishing a correlation between the number of bits included in the second field in the first signaling and the K1 candidate integers, and whether the time-domain resources occupied by the first sub-signal and the second sub-signal overlap.

[0014] As an example, the problem this application aims to solve includes: how to design a field for indicating TPMI and / or SRI in a space-division and / or frequency-division multiplexing manner. The above method solves this problem by limiting the number of bits included in the second field of the first signaling to not less than the base-2 logarithm of the sum of the K1 candidate integers when the time-domain resources occupied by the first sub-signal and the second sub-signal overlap.

[0015] As an example, the features of the above method include: the first domain and the second domain are respectively used to indicate TPMI or SRI, the TPMI and / or SRI of the first sub-signal and the TPMI and / or SRI of the second sub-signal are indicated by different domains, that is, the first signal is based on multi-beam / TRP / pane transmission.

[0016] As an example, the features of the above method include: the number of bits included in the second field in the first signaling is related to whether the time domain resources occupied by the first sub-signal and the time domain resources occupied by the second sub-signal overlap, that is, it is related to the multiplexing method.

[0017] As an example, the advantages of the above method include: satisfying different requirements for the number of bits used to indicate TPMI and / or SRI under different multiplexing methods.

[0018] As an example, the advantages of the above method include: solving the design of the domain used to indicate antenna ports and / or TPMI under spatial multiplexing.

[0019] As an example, the advantages of the above method include: under spatial division and / or frequency division multiplexing, it can flexibly indicate the number of layers of the first sub-signal and the second sub-signal.

[0020] According to one aspect of this application, the K1 layers correspond one-to-one with the K1 tables; any one of the K1 tables includes multiple rows, and at least one row in any one of the K1 tables indicates a TPMI; any one of the K1 candidate integers is not less than the number of rows included in the corresponding table.

[0021] According to one aspect of this application, the K1 layers and K1 combinations are in one-to-one correspondence, and the K1 combinations are all positive integers; any candidate integer among the K1 candidate integers is not less than the corresponding combination number.

[0022] According to one aspect of this application, the load of the bits included in the first field of the first signaling is related to K2 candidate integers, where K2 is a positive integer greater than 1; the K2 candidate integers correspond one-to-one with K2 layer numbers; and the load of the bits included in the first field of the first signaling is not less than the base-2 logarithm of the sum of the K2 candidate integers.

[0023] According to one aspect of this application, the K1 is associated with at least one of a first maximum number of layers, a second maximum number of layers, and a third maximum number of layers; the first maximum number of layers, the second maximum number of layers, and the third maximum number of layers are all positive integers greater than 1; and at least one of the first maximum number of layers, the second maximum number of layers, and the third maximum number of layers is configurable.

[0024] As an example, the features of the above method include: the ability to configure the maximum number of layers corresponding to each beam / TRP / pane separately.

[0025] As an example, the features of the above method include: the ability to configure the maximum number of layers corresponding to each beam / TRP / pane, and the maximum value of the total number of layers transmitted on different beams / TRP / panes.

[0026] As an example, the advantages of the above method include: meeting the different requirements of each beam / TRP / pane for the maximum number of layers.

[0027] According to one aspect of this application, the value of K1 is related to whether the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal overlap.

[0028] According to one aspect of this application, the K2 is associated with at least one of a first maximum layer number, a second maximum layer number, and a third maximum layer number; the first maximum layer number, the second maximum layer number, and the third maximum layer number are all positive integers greater than 1; and at least one of the first maximum layer number, the second maximum layer number, and the third maximum layer number is configurable.

[0029] According to one aspect of this application, the first node includes a user equipment.

[0030] According to one aspect of this application, the first node includes a relay node.

[0031] This application discloses a method used in a second node for wireless communication, characterized by comprising:

[0032] Send a first signaling instruction, which indicates the scheduling information of the first signal;

[0033] Receive the first signal;

[0034] Wherein, the first signal includes a first sub-signal and a second sub-signal; the first signaling includes a first field and a second field; the first field and the second field in the first signaling are respectively used to determine the antenna port for transmitting the first sub-signal and the antenna port for transmitting the second sub-signal, or the first field and the second field in the first signaling are respectively used to determine the precoder for the first sub-signal and the precoder for the second sub-signal; the first field and the second field each include at least one bit, and the bit payload of the second field in the first signaling is related to K1 candidate integers, where K1 is a positive integer greater than 1; the K1 candidate integers and K1 layers The numbers correspond one-to-one; the relationship between the load of the bits included in the second field of the first signaling and the K1 candidate integers is related to whether the time domain resources occupied by the first sub-signal and the second sub-signal overlap; when the time domain resources occupied by the first sub-signal and the second sub-signal overlap, the load of the bits included in the second field of the first signaling is not less than the base-2 logarithm of the sum of the K1 candidate integers; when the time domain resources occupied by the first sub-signal and the second sub-signal are orthogonal to each other, the load of the bits included in the second field of the first signaling is not less than the base-2 logarithm of the maximum value among the K1 candidate integers.

[0035] According to one aspect of this application, the K1 layers correspond one-to-one with the K1 tables; any one of the K1 tables includes multiple rows, and at least one row in any one of the K1 tables indicates a TPMI; any one of the K1 candidate integers is not less than the number of rows included in the corresponding table.

[0036] According to one aspect of this application, the K1 layers and K1 combinations are in one-to-one correspondence, and the K1 combinations are all positive integers; any candidate integer among the K1 candidate integers is not less than the corresponding combination number.

[0037] According to one aspect of this application, the load of the bits included in the first field of the first signaling is related to K2 candidate integers, where K2 is a positive integer greater than 1; the K2 candidate integers correspond one-to-one with K2 layer numbers; and the load of the bits included in the first field of the first signaling is not less than the base-2 logarithm of the sum of the K2 candidate integers.

[0038] According to one aspect of this application, the K1 is associated with at least one of a first maximum number of layers, a second maximum number of layers, and a third maximum number of layers; the first maximum number of layers, the second maximum number of layers, and the third maximum number of layers are all positive integers greater than 1; and at least one of the first maximum number of layers, the second maximum number of layers, and the third maximum number of layers is configurable.

[0039] According to one aspect of this application, the value of K1 is related to whether the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal overlap.

[0040] According to one aspect of this application, the K2 is associated with at least one of a first maximum layer number, a second maximum layer number, and a third maximum layer number; the first maximum layer number, the second maximum layer number, and the third maximum layer number are all positive integers greater than 1; and at least one of the first maximum layer number, the second maximum layer number, and the third maximum layer number is configurable.

[0041] According to one aspect of this application, the second node is a base station.

[0042] According to one aspect of this application, the second node is a user equipment.

[0043] According to one aspect of this application, the second node is a relay node.

[0044] This application discloses a first node device used for wireless communication, characterized in that it includes:

[0045] A first receiver receives a first signaling instruction, which indicates scheduling information for a first signal.

[0046] The first transmitter sends the first signal;

[0047] Wherein, the first signal includes a first sub-signal and a second sub-signal; the first signaling includes a first field and a second field; the first field and the second field in the first signaling are respectively used to determine the antenna port for transmitting the first sub-signal and the antenna port for transmitting the second sub-signal, or the first field and the second field in the first signaling are respectively used to determine the precoder for the first sub-signal and the precoder for the second sub-signal; the first field and the second field each include at least one bit, and the bit payload of the second field in the first signaling is related to K1 candidate integers, where K1 is a positive integer greater than 1; the K1 candidate integers and K1 layers The numbers correspond one-to-one; the relationship between the load of the bits included in the second field of the first signaling and the K1 candidate integers is related to whether the time domain resources occupied by the first sub-signal and the second sub-signal overlap; when the time domain resources occupied by the first sub-signal and the second sub-signal overlap, the load of the bits included in the second field of the first signaling is not less than the base-2 logarithm of the sum of the K1 candidate integers; when the time domain resources occupied by the first sub-signal and the second sub-signal are orthogonal to each other, the load of the bits included in the second field of the first signaling is not less than the base-2 logarithm of the maximum value among the K1 candidate integers.

[0048] This application discloses a second node device used for wireless communication, characterized in that it includes:

[0049] The second transmitter sends a first signaling instruction, which indicates the scheduling information of the first signal.

[0050] A second receiver receives the first signal;

[0051] Wherein, the first signal includes a first sub-signal and a second sub-signal; the first signaling includes a first field and a second field; the first field and the second field in the first signaling are respectively used to determine the antenna port for transmitting the first sub-signal and the antenna port for transmitting the second sub-signal, or the first field and the second field in the first signaling are respectively used to determine the precoder for the first sub-signal and the precoder for the second sub-signal; the first field and the second field each include at least one bit, and the bit payload of the second field in the first signaling is related to K1 candidate integers, where K1 is a positive integer greater than 1; the K1 candidate integers and K1 layers The numbers correspond one-to-one; the relationship between the load of the bits included in the second field of the first signaling and the K1 candidate integers is related to whether the time domain resources occupied by the first sub-signal and the second sub-signal overlap; when the time domain resources occupied by the first sub-signal and the second sub-signal overlap, the load of the bits included in the second field of the first signaling is not less than the base-2 logarithm of the sum of the K1 candidate integers; when the time domain resources occupied by the first sub-signal and the second sub-signal are orthogonal to each other, the load of the bits included in the second field of the first signaling is not less than the base-2 logarithm of the maximum value among the K1 candidate integers.

[0052] As an example, compared with conventional solutions, this application has the following advantages:

[0053] It meets the different requirements for the number of bits used to indicate TPMI and / or SRI under different multiplexing methods.

[0054] The design of the domain used to indicate TPMI and / or SRI under space division and / or frequency division multiplexing was solved.

[0055] Under space division and / or frequency division multiplexing, the number of signal layers of different beams / TRPs / panes can be dynamically and flexibly indicated according to the channel quality of different beams / TRPs / panes, thereby improving transmission performance.

[0056] It satisfies the different requirements of each beam / TRP / pane for the maximum number of layers. Attached Figure Description

[0057] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0058] Figure 1 A flowchart of a first signaling and a first signal according to an embodiment of this application is shown;

[0059] Figure 2 A schematic diagram of a network architecture according to an embodiment of this application is shown;

[0060] Figure 3 A schematic diagram of an embodiment of a wireless protocol architecture for the user plane and control plane according to an embodiment of this application is shown;

[0061] Figure 4 A schematic diagram of a first communication device and a second communication device according to an embodiment of this application is shown;

[0062] Figure 5 A flowchart of a transmission according to an embodiment of this application is shown;

[0063] Figure 6 A schematic diagram of an antenna port for transmitting a first sub-signal and an antenna port for transmitting a second sub-signal according to an embodiment of this application is shown;

[0064] Figure 7 A schematic diagram is shown showing a first field and a second field in a first signaling according to an embodiment of the present application, which are used to determine the antenna port for transmitting a first sub-signal and the antenna port for transmitting a second sub-signal, respectively.

[0065] Figure 8 A schematic diagram is shown showing a first field and a second field in a first signaling according to an embodiment of the present application, which are used to determine the precoder of a first sub-signal and the precoder of a second sub-signal, respectively.

[0066] Figure 9 A schematic diagram illustrating K1 layers, K1 tables, and K1 candidate integers according to an embodiment of this application is shown;

[0067] Figure 10 A schematic diagram showing K1 layers, K1 combinations, and K1 candidate integers according to an embodiment of this application is illustrated.

[0068] Figure 11 A schematic diagram of the bit payload included in a first field of a first signaling according to an embodiment of this application is shown;

[0069] Figure 12 A schematic diagram illustrating K2 layers, K2 tables, and K2 candidate integers according to an embodiment of this application is shown;

[0070] Figure 13 A schematic diagram illustrating K2 layers, K2 combinations, and K2 candidate integers according to an embodiment of this application is shown;

[0071] Figure 14A schematic diagram is shown showing K1 according to an embodiment of the present application in relation to at least one of a first maximum number of layers, a second maximum number of layers, and a third maximum number of layers;

[0072] Figure 15 A schematic diagram is shown relating the value of K1 according to an embodiment of this application to whether the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal overlap.

[0073] Figure 16 A schematic diagram is shown relating the value of K1 according to an embodiment of this application to whether the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal overlap.

[0074] Figure 17 A schematic diagram is shown showing K2 according to an embodiment of the present application in relation to at least one of a first maximum number of layers, a second maximum number of layers, and a third maximum number of layers;

[0075] Figure 18 A schematic diagram showing K2 in relation to a first maximum number of layers and a second maximum number of layers according to an embodiment of this application is shown;

[0076] Figure 19 A schematic diagram showing K2 in relation to a first maximum number of layers and a second maximum number of layers according to an embodiment of this application is shown;

[0077] Figure 20 A structural block diagram of a processing apparatus in a first node device according to an embodiment of this application is shown;

[0078] Figure 21 A structural block diagram of a processing apparatus for a second node device according to an embodiment of this application is shown. Detailed Implementation

[0079] The technical solution of this application will be further described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be arbitrarily combined with each other.

[0080] Example 1

[0081] Example 1 illustrates a flowchart of a first signaling and a first signal according to an embodiment of this application, as shown in the attached diagram. Figure 1 As shown. In the appendix Figure 1 In the 100 shown, each box represents a step. In particular, the order of the steps in the boxes does not represent a specific temporal relationship between the steps.

[0082] In Embodiment 1, the first node in this application receives first signaling in step 101, the first signaling indicating scheduling information of the first signal; and transmits the first signal in step 102. The first signal includes a first sub-signal and a second sub-signal; the first signaling includes a first field and a second field; the first field and the second field in the first signaling are respectively used to determine the antenna port for transmitting the first sub-signal and the antenna port for transmitting the second sub-signal, or the first field and the second field in the first signaling are respectively used to determine the precoder for the first sub-signal and the precoder for the second sub-signal; the first field and the second field each include at least one bit, and the payload of the bits included in the second field in the first signaling is related to K1 candidate integers, where K1 is a positive integer greater than 1; the K1 candidate integers and K1 layers... The numbers correspond one-to-one; the relationship between the load of the bits included in the second field of the first signaling and the K1 candidate integers is related to whether the time domain resources occupied by the first sub-signal and the second sub-signal overlap; when the time domain resources occupied by the first sub-signal and the second sub-signal overlap, the load of the bits included in the second field of the first signaling is not less than the base-2 logarithm of the sum of the K1 candidate integers; when the time domain resources occupied by the first sub-signal and the second sub-signal are orthogonal to each other, the load of the bits included in the second field of the first signaling is not less than the base-2 logarithm of the maximum value among the K1 candidate integers.

[0083] As one embodiment, the first signaling includes physical layer signaling.

[0084] As one embodiment, the first signaling includes dynamic signaling.

[0085] As an example, the first signaling includes signaling of layer 1 (L1).

[0086] Typically, the first signaling includes DCI (Downlink Control Information).

[0087] Typically, the first signaling is a DCI.

[0088] As one example, the first signaling includes DCI for UpLink Grant.

[0089] As one embodiment, the first signaling includes DCI for configuring UpLinkGrant scheduling activation.

[0090] As an example, the first signaling includes RRC (Radio Resource Control) signaling.

[0091] As an example, the first signaling includes a MAC CE (Medium Access Control layer Control Element).

[0092] As an example, the scheduling information includes one or more of the following: time-domain resources, frequency-domain resources, MCS (Modulation and Coding Scheme), DMRS (DeModulation Reference Signals) port, HARQ (Hybrid Automatic Repeat Request) process number, RV (Redundancy Version), NDI (New Data Indicator), TCI (Transmission Configuration Indicator) status, or SRI (Sounding Reference Signal Resource Indicator).

[0093] As an example, the first signaling explicitly indicates the scheduling information of the first signal.

[0094] As an example, the first signaling implicitly indicates the scheduling information of the first signal.

[0095] As an example, the first signaling explicitly indicates a portion of the scheduling information of the first signal, and implicitly indicates another portion of the scheduling information of the first signal.

[0096] As one embodiment, the first signaling includes the scheduling information of the first signal.

[0097] As one embodiment, the first signaling indicates the layer number of the first sub-signal and the layer number of the second sub-signal.

[0098] As an example, the first field in the first signaling is used to determine the antenna port for transmitting the first sub-signal, and the second field in the first signaling is used to determine the antenna port for transmitting the second sub-signal.

[0099] As an example, the first field in the first signaling is used to determine the precoder of the first sub-signal, and the second field in the first signaling is used to determine the precoder of the second sub-signal.

[0100] As one embodiment, the first field in the first signaling indicates the antenna port for transmitting the first sub-signal, and the second field in the first signaling indicates the antenna port for transmitting the second sub-signal.

[0101] As an example, the first field in the first signaling indicates the precoder of the first sub-signal, and the second field in the first signaling indicates the precoder of the second sub-signal.

[0102] As an example, the first domain and the second domain each include at least one domain in the DCI.

[0103] As an example, the first field and the second field each include all or part of the bits in at least one field of the DCI.

[0104] As an example, the first domain and the second domain are each a domain in the DCI.

[0105] As an example, the first field includes the SRS resource indicator field in the DCI.

[0106] As an example, the first field includes the Precoding information and number of layers field in DCI.

[0107] As an example, the first field includes the first SRS resource indicator field in the DCI.

[0108] As an example, the first field includes the first Precoding information and number of layers field in the DCI.

[0109] As an example, the second field includes the Second SRS resource indicator field in the DCI.

[0110] As an example, the second field includes the SecondPrecoding information field in DCI.

[0111] As an example, the second field includes information from the Second SRS resource indicator field in the DCI.

[0112] As an example, the second field includes information from the SecondPrecoding information field in the DCI.

[0113] As an example, the second field includes the second SRS resource indicator field in the DCI.

[0114] As an example, the second field includes the second Precoding information and number of layers field in DCI.

[0115] As an example, the first field and the second field respectively indicate at least one SRI, or the first field and the second field respectively indicate a TPMI (Transmitted Precoding Matrix Indicator).

[0116] As an example, the first field indicates at least one SRI, and the second field indicates at least one SRI.

[0117] As an example, when the first field and the second field in the first signaling are used to determine the antenna port for transmitting the first sub-signal and the antenna port for transmitting the second sub-signal, respectively, the first field indicates at least one SRI and the second field indicates at least one SRI.

[0118] As an example, the first field indicates a TPMI and the second field indicates a TPMI.

[0119] As an example, the first field indicates a TPMI and a number of layers, and the second field indicates a TPMI and a number of layers.

[0120] As an example, when the first field and the second field in the first signaling are used to determine the precoder of the first sub-signal and the precoder of the second sub-signal, respectively, the first field indicates a TPMI and a layer number, and the second field indicates a TPMI and a layer number.

[0121] As an example, at least one of the first field and the second field in the first signaling further indicates the layer number of the first sub-signal and the layer number of the second sub-signal.

[0122] As an example, when the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal overlap, the first field in the first signaling indicates the layer number of the first sub-signal, and the second field in the first signaling indicates the layer number of the second sub-signal.

[0123] As an example, when the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal are orthogonal to each other, the first field in the first signaling indicates the first layer number, and the layer number of the first sub-signal and the layer number of the second sub-signal are both equal to the first layer number.

[0124] Typically, the first field is positioned before the second field in the first signaling.

[0125] As an example, when the first higher-level parameter is set to "codebook", the first field in the first signaling is used to determine the precoder of the first sub-signal, and the second field in the first signaling is used to determine the precoder of the second sub-signal; when the first higher-level parameter is set to "nonCodebook", the first field in the first signaling is used to determine the antenna port for transmitting the first sub-signal, and the second field in the first signaling is used to determine the antenna port for transmitting the second sub-signal; the name of the first higher-level parameter includes "txConfig".

[0126] As an example, the first higher-level parameter is "txConfig".

[0127] As one embodiment, the first signal includes a baseband signal.

[0128] As one embodiment, the first signal includes a wireless signal.

[0129] As one embodiment, the first signal includes a radio frequency signal.

[0130] As one embodiment, the first signal carries at least one TB (Transport Block).

[0131] As an example, the first sub-signal carries at least one TB, and the second sub-signal carries at least one TB.

[0132] As an example, the first sub-signal carries only one TB.

[0133] As an example, the second sub-signal carries only one TB.

[0134] As an example, the first sub-signal carries multiple TBs.

[0135] As one example, the second sub-signal carries multiple TBs.

[0136] As an example, the number of TBs carried by the first sub-signal is equal to the number of TBs carried by the second sub-signal.

[0137] As an example, whether the first sub-signal and the second sub-signal carry the same TB is related to whether the time domain resources occupied by the first sub-signal and the time domain resources occupied by the second sub-signal overlap.

[0138] As an example, when the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal overlap, the first sub-signal and the second sub-signal carry different TBs.

[0139] As a sub-implementation of the above embodiments, the first sub-signal carries only one TB, the second sub-signal carries only one TB, and the one TB carried by the first sub-signal is different from the one TB carried by the second sub-signal.

[0140] As an example, when the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal overlap, the first sub-signal and the second sub-signal respectively include different layers of the first signal.

[0141] As an example, when the time domain resources occupied by the first sub-signal and the time domain resources occupied by the second sub-signal are orthogonal to each other, the first sub-signal and the second sub-signal carry the same TB.

[0142] As a sub-implementation of the above embodiments, the first sub-signal and the second sub-signal carry the same TB.

[0143] As a sub-implementation of the above embodiments, the first sub-signal and the second sub-signal carry the same multiple TBs.

[0144] As a sub-implementation of the above embodiments, the number of TBs carried by the first sub-signal and the second sub-signal is related to the number of layers of the first signal.

[0145] As a sub-example of the above embodiment, when the number of layers of the first signal is not greater than 4, the number of TBs carried by the first sub-signal and the second sub-signal is equal to 1; when the number of layers of the first signal is greater than 4, the number of TBs carried by the first sub-signal and the second sub-signal is equal to 2.

[0146] As an example, when the time domain resources occupied by the first sub-signal and the time domain resources occupied by the second sub-signal are orthogonal to each other, the first sub-signal and the second sub-signal include two repeated transmissions of the same TB.

[0147] As an example, when the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal overlap, the number of layers of the first sub-signal and the number of layers of the second sub-signal are indicated separately.

[0148] As an example, when the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal overlap, the first signaling indicates the layer number of the first sub-signal and the layer number of the second sub-signal, respectively.

[0149] As an example, when the time-domain resources occupied by the first sub-signal overlap with those occupied by the second sub-signal, the number of layers of the first signal is equal to the sum of the number of layers of the first sub-signal and the number of layers of the second sub-signal.

[0150] As an example, when the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal are orthogonal to each other, the number of layers of the first sub-signal is equal to the number of layers of the second sub-signal.

[0151] As a sub-implementation of the above embodiments, the number of layers of the first sub-signal is equal to the number of layers of the first signal.

[0152] As an example, when the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal overlap, the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal completely overlap.

[0153] As an example, when the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal overlap, the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal partially overlap.

[0154] As an example, when the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal are orthogonal to each other, the first signaling indicates the order of the first sub-signal and the second sub-signal in the time domain.

[0155] As an example, when the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal are orthogonal to each other, the fifth field in the first signaling indicates the order of the first sub-signal and the second sub-signal in the time domain.

[0156] As a sub-implementation of the above embodiments, the fifth domain includes a domain in the DCI.

[0157] As a sub-implementation of the above embodiment, the name of the fifth field includes "SRS resourceset".

[0158] As a sub-implementation of the above embodiment, the name of the fifth field includes "SRS resourcesetindicator".

[0159] As an example, when the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal are orthogonal to each other, the first sub-signal is earlier than the second sub-signal in the time domain.

[0160] As an example, when the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal are orthogonal to each other, the first sub-signal is later than the second sub-signal in the time domain.

[0161] As an example, the number of layers refers to the number of layers.

[0162] As an example, the term "layer" refers to a layer.

[0163] As an example, the layer refers to: MIMO layer.

[0164] As an example, the definitions of the layer and the number of layers are found in 3GPP TS38.214 and 38.211.

[0165] Typically, the K1 candidate integers are K1 positive integers.

[0166] As an example, the K1 candidate integers are K1 positive integers greater than 1.

[0167] As an example, the K1 candidate integers are K1 positive integers that are greater than 1 and not less than 2048.

[0168] Typically, the K1 layers are K1 positive integers.

[0169] Typically, the K1 layers are 1, 2, ..., K1, respectively.

[0170] Typically, the number of the K1 layers is not equal to the number of each other.

[0171] As an example, the K1 layers are all positive integers not greater than 4.

[0172] As an example, the K1 layers are all positive integers not greater than 8.

[0173] As an example, K1 is a positive integer greater than 1 and not greater than 4.

[0174] As an example, K1 is a positive integer greater than 1 and not greater than 8.

[0175] As an example, one of the K1 layers has a layer number greater than K1.

[0176] As an example, the K1 candidate integers are respectively related to the K1 layer numbers.

[0177] As an example, the K1 layers are used to determine the K1 candidate integers.

[0178] As an example, the payload refers to the payload itself.

[0179] Typically, the phrase bit load refers to the number of bits.

[0180] Typically, the payload of the phrase bits refers to the bit width.

[0181] Typically, the bit load of the second field of the phrase refers to the number of bits included in the second field.

[0182] Typically, the bit payload of the second field of the phrase refers to the bit width of the second field.

[0183] As an example, when the time-domain resources occupied by the first sub-signal overlap with those occupied by the second sub-signal, the base-2 logarithm of the sum of the K1 candidate integers is used to determine the load of the bits included in the second field of the first signaling; when the time-domain resources occupied by the first sub-signal and those occupied by the second sub-signal are orthogonal to each other, the base-2 logarithm of the maximum value among the K1 candidate integers is used to determine the load of the bits included in the second field of the first signaling.

[0184] Typically, when the time-domain resources occupied by the first sub-signal overlap with those occupied by the second sub-signal, the load of the bits included in the second field of the first signaling is equal to the smallest positive integer that is not less than the base-2 logarithm of the sum of the K1 candidate integers; when the time-domain resources occupied by the first sub-signal and those occupied by the second sub-signal are orthogonal to each other, the load of the bits included in the second field of the first signaling is equal to the smallest positive integer that is not less than the base-2 logarithm of the maximum value among the K1 candidate integers.

[0185] Typically, when the time-domain resources occupied by the first sub-signal overlap with those occupied by the second sub-signal, the load of the bits included in the second field of the first signaling is equal to the base-2 logarithm of the sum of the K1 candidate integers, rounded up; when the time-domain resources occupied by the first sub-signal and those occupied by the second sub-signal are orthogonal to each other, the load of the bits included in the second field of the first signaling is equal to the base-2 logarithm of the maximum value among the K1 candidate integers, rounded up.

[0186] As an example, when the time-domain resources occupied by the first sub-signal overlap with those occupied by the second sub-signal, the load of the bits included in the second field of the first signaling is equal to the base-2 logarithm of the sum of the K1 candidate integers, rounded up, plus a first bit number; when the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal are orthogonal to each other, the load of the bits included in the second field of the first signaling is equal to the base-2 logarithm of the maximum value among the K1 candidate integers, rounded up, plus a second bit number; the first bit number and the second bit number are both non-negative integers, and at least one of the first bit number and the second bit number is greater than 0.

[0187] As a sub-implementation of the above embodiments, the first number of bits does not need to be configured.

[0188] As a sub-implementation of the above embodiments, the second number of bits does not need to be configured.

[0189] As a sub-implementation of the above embodiments, the first number of bits is configurable.

[0190] As a sub-implementation of the above embodiments, the second number of bits is configurable.

[0191] As a sub-implementation of the above embodiment, the first number of bits is equal to 0, and the second number of bits is greater than 0.

[0192] As a sub-implementation of the above embodiment, both the first number of bits and the second number of bits are greater than 0.

[0193] As an example, the phrase "the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal overlap" means that the time-frequency resources occupied by the first sub-signal and the time-frequency resources occupied by the second sub-signal overlap.

[0194] As an example, the phrase "the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal overlap" means that the first sub-signal and the second sub-signal occupy overlapping time-domain resources and mutually orthogonal frequency-domain resources.

[0195] As an example, the phrase "when the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal overlap" means: when the time-frequency resources occupied by the first sub-signal and the time-frequency resources occupied by the second sub-signal overlap.

[0196] As an example, the phrase "when the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal overlap" means: when the first sub-signal and the second sub-signal occupy overlapping time-domain resources and mutually orthogonal frequency-domain resources.

[0197] As an example, the phrase "when the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal overlap" means that when the time-frequency resources occupied by the first sub-signal and the time-frequency resources occupied by the second sub-signal overlap.

[0198] As an example, the phrase "when the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal overlap" means only that when the time-frequency resources occupied by the first sub-signal and the time-frequency resources occupied by the second sub-signal overlap.

[0199] Example 2

[0200] Example 2 illustrates a schematic diagram of a network architecture according to an embodiment of this application, as shown in the attached diagram. Figure 2 As shown.

[0201] Appendix Figure 2This describes the network architecture 200 for LTE (Long-Term Evolution), LTE-A (Long-Term Evolution Advanced), and future 5G systems. The network architecture 200 for LTE, LTE-A, and future 5G systems is referred to as EPS (Evolved Packet System) 200. The 5G NR or LTE network architecture 200 can be referred to as 5GS (5G System) / EPS (Evolved Packet System) 200 or some other suitable terminology. The 5GS / EPS 200 may include one or more UEs (User Equipment) 201, a UE 241 communicating with UE 201 via a sidelink, NG-RAN (Next Generation Radio Access Network) 202, 5GC (5G Core Network) / EPC (Evolved Packet Core) 210, HSS (Home Subscriber Server) / UDM (Unified Data Management) 220, and Internet services 230. The 5GS / EPS 200 can interconnect with other access networks, but these entities / interfaces are not shown for simplicity. (See attached...) Figure 2As shown, the 5GS / EPS200 provides packet-switched services; however, those skilled in the art will readily understand that the various concepts presented throughout this application can be extended to networks providing circuit-switched services. The NG-RAN202 includes NR (New Radio) Node B (gNB) 203 and other gNBs 204. gNB 203 provides user and control plane protocol termination to UE 201. gNB 203 can be connected to other gNBs 204 via an Xn interface (e.g., backhaul). gNB 203 may also be referred to as a base station, base transceiver station, radio base station, radio transceiver, transceiver function, basic service set (BSS), extended service set (ESS), TRP (transmitter-receiver point), or some other suitable term. gNB 203 provides UE 201 with access to the 5GC / EPC210. Examples of UE201 include cellular phones, smartphones, Session Initiation Protocol (SIP) phones, laptop computers, personal digital assistants (PDAs), satellite radios, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, drones, aircraft, narrowband physical network devices, machine-type communication devices, land vehicles, automobiles, wearable devices, or any other similar functional devices. Those skilled in the art may also refer to UE201 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, handheld device, user agent, mobile client, client, or any other suitable term. gNB203 connects to 5GC / EPC210 via the S1 / NG interface. 5GC / EPC210 includes MME (Mobility Management Entity) / AMF (Authentication Management Field) / SMF (Session Management Function) 211, other MME / AMF / SMF 214, S-GW (Service Gateway) / UPF (User Plane Function) 212, and P-GW (Packet Data Network Gateway) / UPF 213. MME / AMF / SMF 211 is the control node that handles signaling between UE201 and 5GC / EPC210. ​​Generally, MME / AMF / SMF 211 provides bearer and connection management.All user IP (Internet Protocol) packets are transmitted through the S-GW / UPF212, which is itself connected to the P-GW / UPF213. The P-GW provides UE IP address allocation and other functions. The P-GW / UPF213 is connected to Internet service 230. Internet service 230 includes operator-compliant Internet Protocol services, specifically including the Internet, intranet, IMS (IP Multimedia Subsystem), and packet switching services.

[0202] As an example, the first node in this application includes the UE201.

[0203] As an example, the second node in this application includes the gNB203.

[0204] As an example, the wireless link between the UE201 and the gNB203 is a cellular link.

[0205] As an example, the sender of the first signaling includes the gNB203.

[0206] As an example, the recipient of the first signaling includes the UE201.

[0207] As an example, the sender of the first signal includes the UE201.

[0208] As an example, the receiver of the first signal includes the gNB203.

[0209] As an example, the UE201 supports simultaneous multi-panel / TRP UL transmission.

[0210] Example 3

[0211] Example 3 illustrates a schematic diagram of an embodiment of a wireless protocol architecture for the user plane and control plane according to an embodiment of this application, as shown in the attached diagram. Figure 3 As shown.

[0212] Example 3 illustrates a schematic diagram of an embodiment of a wireless protocol architecture for a user plane and a control plane according to this application, as shown in the attached diagram. Figure 3 As shown. Figure 3 This is a schematic diagram illustrating an embodiment of a radio protocol architecture for the user plane 350 and the control plane 300. Figure 3The radio protocol architecture of the control plane 300 between the first communication node device (UE, gNB, or RSU in V2X) and the second communication node device (gNB, UE, or RSU in V2X), or between two UEs, is illustrated using three layers: Layer 1, Layer 2, and Layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (Physical Layer) signal processing functions. Layer 1 will be referred to herein as PHY 301. Layer 2 (L2 layer) 305, above PHY 301, is responsible for the link between the first and second communication node devices, or between two UEs. Layer 2 305 includes the MAC (Medium Access Control) sublayer 302, the RLC (Radio Link Control) sublayer 303, and the PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the second communication node device. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. PDCP sublayer 304 also provides security through encrypted data packets and supports cross-cell mobility between second communication node devices and the first communication node device. RLC sublayer 303 provides upper layer data packet segmentation and reassembly, retransmission of lost data packets, and data packet reordering to compensate for out-of-order reception due to HARQ. MAC sublayer 302 provides multiplexing between logical and transport channels. MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) within a cell between the first communication node devices. MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in Layer 3 (L3) of the control plane 300 is responsible for acquiring radio resources (i.e., radio bearers) and configuring the lower layer using RRC signaling between the second and first communication node devices. The radio protocol architecture of user plane 350 includes layer 1 (L1 layer) and layer 2 (L2 layer). The radio protocol architecture for the first and second communication node devices in user plane 350 is largely the same as the corresponding layers and sublayers in control plane 300 for physical layer 351, PDCP sublayer 354 in L2 layer 355, RLC sublayer 353 in L2 layer 355 and MAC sublayer 352 in L2 layer 355. However, PDCP sublayer 354 also provides header compression for upper layer data packets to reduce radio transmission overhead.The L2 layer 355 in the user plane 350 also includes an SDAP (Service Data Adaptation Protocol) sublayer 356, which is responsible for mapping between QoS streams and data radio bearers (DRBs) to support service diversity. Although not illustrated, 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 an application layer terminating at the other end of the connection (e.g., a remote UE, server, etc.).

[0213] As an example, Appendix Figure 3 The wireless protocol architecture described herein is applicable to the first node in this application.

[0214] As an example, Appendix Figure 3 The wireless protocol architecture described herein is applicable to the second node in this application.

[0215] As an example, the first signaling is generated in the PHY301 or the PHY351.

[0216] As an example, the first signaling is generated in the MAC sublayer 302 or the MAC sublayer 352.

[0217] As an example, the first signaling is generated in the RRC sublayer 306.

[0218] As an example, the first signal is generated in the PHY301 or the PHY351.

[0219] As an example, the higher layer mentioned in this application refers to the layer above the physical layer.

[0220] Example 4

[0221] Example 4 illustrates a schematic diagram of a first communication device and a second communication device according to an embodiment of this application, as shown in the attached diagram. Figure 4 As shown. (Attached) Figure 4 This is a block diagram of a first communication device 410 and a second communication device 450 communicating with each other in an access network.

[0222] The first communication device 410 includes a controller / processor 475, a memory 476, a receiver processor 470, a transmitter processor 416, a multi-antenna receiver processor 472, a multi-antenna transmitter processor 471, a transmitter / receiver 418, and an antenna 420.

[0223] The second communication device 450 includes a controller / processor 459, a memory 460, a data source 467, a transmitting processor 468, a receiving processor 456, a multi-antenna transmitting processor 457, a multi-antenna receiving processor 458, a transmitter / receiver 454, and an antenna 452.

[0224] In the transmission from the first communication device 410 to the second communication device 450, at the first communication device 410, upper-layer data packets from the core network are provided to the controller / processor 475. The controller / processor 475 implements L2 layer functionality. In the L2 layer, the controller / processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the second communication device 450 based on various priority metrics. The controller / processor 475 is also responsible for HARQ operation, retransmission of lost packets, and signaling to the second communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the L1 layer (i.e., the physical layer). Transmit processor 416 performs encoding and interleaving to facilitate forward error correction (FEC) at the second communication device 450, and constellation mapping based on various modulation schemes (e.g., Binary Phase Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK), M-Phase Shift Keying (M-PSK), M-QAM). Multi-antenna transmit processor 471 performs digital spatial precoding on the encoded and modulated symbols, including codebook-based and non-codebook-based precoding, and beamforming processing, generating one or more parallel streams. Transmit processor 416 then maps each parallel stream to a subcarrier, multiplexes the modulated symbols with a reference signal (e.g., a pilot) in the time and / or frequency domains, and subsequently uses Inverse Fast Fourier Transform (IFFT) to generate a physical channel carrying the time-domain multicarrier symbol stream. Multi-antenna transmit processor 471 then performs transmit analog precoding / beamforming operations on the time-domain multicarrier symbol stream. Each transmitter 418 converts the baseband multicarrier symbol stream provided by the multi-antenna transmitter processor 471 into an radio frequency stream, which is then provided to different antennas 420.

[0225] In the transmission from the first communication device 410 to the second communication device 450, at the second communication device 450, each receiver 454 receives a signal through its corresponding antenna 452. Each receiver 454 recovers the information modulated onto the radio frequency carrier and converts the radio frequency stream into a baseband multicarrier symbol stream, which is then provided to the receiver processor 456. The receiver processor 456 and the multi-antenna receiver processor 458 implement various signal processing functions of the L1 layer. The multi-antenna receiver processor 458 performs receive analog precoding / beamforming operations on the baseband multicarrier symbol stream from the receiver 454. The receiver processor 456 uses a Fast Fourier Transform (FFT) to convert the baseband multicarrier symbol stream after the receive analog precoding / beamforming operations from the time domain to the frequency domain. In the frequency domain, the physical layer data signal and the reference signal are demultiplexed by the receiver processor 456, where the reference signal is used for channel estimation, and the data signal is recovered in the multi-antenna receiver processor 458 after multi-antenna detection to recover any parallel stream destined for the second communication device 450. Symbols on each parallel stream are demodulated and recovered in the receive processor 456, generating soft decisions. The receive processor 456 then decodes and deinterleaves the soft decisions to recover the upper-layer data and control signals transmitted over the physical channel by the first communication device 410. The upper-layer data and control signals are then provided to the controller / processor 459. The controller / processor 459 implements the functions of Layer 2 (L2). The controller / processor 459 may be associated with a memory 460 storing program code and data. The memory 460 may be referred to as computer-readable media. In the DL (Layered Logic), the controller / processor 459 provides multiplexing, packet reassembly, decryption, header decompression, and control signal processing between the transmission and logical channels to recover upper-layer packets from the core network. The upper-layer packets are then provided to all protocol layers above Layer 2. Various control signals may also be provided to Layer 3 (L3) for L3 processing. The controller / processor 459 is also responsible for error detection using ACK and / or NACK protocols to support HARQ operation.

[0226] In the transmission from the second communication device 450 to the first communication device 410, at the second communication device 450, a data source 467 is used to provide upper-layer data packets to the controller / processor 459. The data source 467 represents all protocol layers above the L2 layer. Similar to the transmission functions at the first communication device 410 described in the DL, the controller / processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on the radio resource allocation of the first communication device 410, implementing L2 layer functions for the 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. Transmit processor 468 performs modulation mapping and channel coding processing, while multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based and non-codebook-based precoding, and beamforming processing. Subsequently, transmit processor 468 modulates the generated parallel stream into a multi-carrier / single-carrier symbol stream. After analog precoding / beamforming operations in multi-antenna transmit processor 457, the stream is provided to different antennas 452 via transmitter 454. Each transmitter 454 first converts the baseband symbol stream provided by multi-antenna transmit processor 457 into a radio frequency symbol stream before providing it to antenna 452.

[0227] 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 the receiving function at the second communication device 450 described in the transmission from the first communication device 410 to the second communication device 450. Each receiver 418 receives radio frequency signals through its corresponding antenna 420, converts the received radio frequency signals into baseband signals, and provides the baseband signals to the multi-antenna receiving processor 472 and the receiving processor 470. The receiving processor 470 and the multi-antenna receiving processor 472 jointly implement the L1 layer functions. The controller / processor 475 implements the L2 layer functions. The controller / processor 475 may be associated with a memory 476 that stores program code and data. The memory 476 may be referred to as computer-readable media. The controller / processor 475 provides multiplexing, packet reassembly, decryption, header decompression, and control signal processing between the transmission and logical channels to recover upper-layer data packets from the second communication device 450. The upper-layer data packets from the controller / processor 475 may be provided to the core network. The controller / processor 475 is also responsible for error detection using ACK and / or NACK protocols to support HARQ operation.

[0228] As one embodiment, the second communication device 450 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor. The second communication device 450 means at least: receiving the first signaling; and transmitting the first signal.

[0229] As one embodiment, the second communication device 450 includes: a memory storing a computer-readable instruction program that produces actions when executed by at least one processor, the actions including: receiving the first signaling; and sending the first signal.

[0230] As one embodiment, the first communication device 410 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor. The first communication device 410 at least transmits the first signaling and receives the first signal.

[0231] As one embodiment, the first communication device 410 includes: a memory storing a computer-readable instruction program that produces actions when executed by at least one processor, the actions including: sending the first signaling; and receiving the first signal.

[0232] As an example, the first node in this application includes the second communication device 450.

[0233] As an example, the second node in this application includes the first communication device 410.

[0234] As an example, at least one of {the antenna 452, the receiver 454, the receiving processor 456, the multi-antenna receiving processor 458, the controller / processor 459, the memory 460, and the data source 467} is used to receive the first signaling; at least one of {the antenna 420, the transmitter 418, the transmitting processor 416, the multi-antenna transmitting processor 471, the controller / processor 475, and the memory 476} is used to transmit the first signaling.

[0235] As an example, 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} is used to receive the first signal; and at least one of {the antenna 452, the transmitter 454, the transmitting processor 468, the multi-antenna transmitting processor 457, the controller / processor 459, the memory 460, and the data source 467} is used to transmit the first signal.

[0236] Example 5

[0237] Example 5 illustrates a flowchart of a transmission according to an embodiment of this application; as attached Figure 5 As shown. In the appendix Figure 5 In this context, the second node U1 and the first node U2 are communication nodes that transmit data via an air interface. (Appendix) Figure 5 In the diagram, the steps in boxes F51 and F52 are optional.

[0238] For the second node U1, a first information block is sent in step S5101; a second information block is sent in step S5102; a first signaling is sent in step S511; and a first signal is received in step S512.

[0239] For the first node U2, a first information block is received in step S5201; a second information block is received in step S5202; a first signaling is received in step S521; and a first signal is sent in step S522.

[0240] In embodiment 5, the first signal includes a first sub-signal and a second sub-signal; the first signaling includes a first field and a second field; the first field and the second field in the first signaling are respectively used by the first node U2 to determine the antenna port for transmitting the first sub-signal and the antenna port for transmitting the second sub-signal, or the first field and the second field in the first signaling are respectively used by the first node U2 to determine the precoder for the first sub-signal and the precoder for the second sub-signal; the first field and the second field each include at least one bit, and the bit payload of the second field in the first signaling is related to K1 candidate integers, where K1 is a positive integer greater than 1; the K1 There is a one-to-one correspondence between the candidate integers and the K1 layer numbers; the relationship between the load of the bits included in the second field of the first signaling and the K1 candidate integers is related to whether the time domain resources occupied by the first sub-signal and the second sub-signal overlap; when the time domain resources occupied by the first sub-signal and the second sub-signal overlap, the load of the bits included in the second field of the first signaling is not less than the base-2 logarithm of the sum of the K1 candidate integers; when the time domain resources occupied by the first sub-signal and the second sub-signal are orthogonal to each other, the load of the bits included in the second field of the first signaling is not less than the base-2 logarithm of the maximum value among the K1 candidate integers.

[0241] As an example, the first node U2 is the first node in this application.

[0242] As an example, the second node U1 is the second node in this application.

[0243] As one embodiment, the air interface between the second node U1 and the first node U2 includes a wireless interface between the base station equipment and the user equipment.

[0244] As one embodiment, the air interface between the second node U1 and the first node U2 includes a wireless interface between the relay node device and the user equipment.

[0245] As one embodiment, the air interface between the second node U1 and the first node U2 includes a wireless interface between user equipment and user equipment.

[0246] In one embodiment, the second node U1 is the serving cell sustaining base station of the first node U2.

[0247] As an example, the first signaling is transmitted in a downlink physical layer data channel (i.e., a downlink channel that can be used to carry physical layer data).

[0248] As an example, the first signaling is transmitted in PDSCH (Physical Downlink Shared Channel).

[0249] As an example, the first signaling is transmitted in the downlink physical layer control channel (i.e., a downlink channel that can only be used to carry physical layer signaling).

[0250] As an example, the first signaling is transmitted in the PDCCH (Physical Downlink Control Channel).

[0251] As an example, the first signal is transmitted in an uplink physical layer data channel (i.e., an uplink channel that can be used to carry physical layer data).

[0252] As an example, the first signal is transmitted in PUSCH (Physical Uplink Shared Channel).

[0253] As an example, Appendix Figure 5 The steps in block F51 are present, and the method in the first node used for wireless communication includes: receiving a first information block; the method in the second node used for wireless communication includes: transmitting the first information block; wherein the first information block is used to configure at least one of the first maximum number of layers, the second maximum number of layers, and the third maximum number of layers.

[0254] As an example, the first information block is used to configure only the first maximum layer number, the second maximum layer number, and the third maximum layer number.

[0255] As an example, the first information block is used to configure only the first maximum layer number, the second maximum layer number, and the third maximum layer number.

[0256] As an example, the first information block is used to configure only the first maximum layer number, the second maximum layer number, and the third maximum layer number.

[0257] As an example, the first information block is used to configure the first maximum number of layers, the second maximum number of layers, and the third maximum number of layers.

[0258] As one embodiment, the first information block is carried by higher-layer signaling.

[0259] As one example, the first information block includes all or part of the information in one or more IEs (Information Elements).

[0260] As an example, the first information block is transmitted on the PDSCH.

[0261] As an example, Appendix Figure 5 The steps in block F52 are present, and the method in the first node used for wireless communication includes: receiving a second information block; the method in the second node used for wireless communication includes: transmitting the second information block; wherein, whether the time domain resources occupied by the first sub-signal and the time domain resources occupied by the second sub-signal overlap is related to the second information block.

[0262] As one embodiment, the second information block is carried by higher-layer signaling.

[0263] As one example, the second information block includes all or part of the information in an IE.

[0264] As one embodiment, the second information block includes all or part of the information in the first IE, and the name of the first IE includes "PUSCH-Config".

[0265] As an example, the second information block includes information from the sixth field in the first IE shown, and the name of the sixth field includes "maxNrofCodeWords".

[0266] As one embodiment, the second information block is used to determine whether uplink two-codeword transmission is enabled.

[0267] As an example, the second information block is used to determine whether two codeword transmissions based on different SRS resource sets in the same time domain resources are enabled.

[0268] As an example, when the transmission of two codewords based on different SRS resource sets in the same time domain resources is not enabled, the time domain resources occupied by the first sub-signal and the time domain resources occupied by the second sub-signal are orthogonal to each other.

[0269] As one example, the second information block is transmitted on the PDSCH.

[0270] Example 6

[0271] Example 6 illustrates a schematic diagram of an antenna port for transmitting a first sub-signal and an antenna port for transmitting a second sub-signal according to an embodiment of this application; as attached. Figure 6As shown in Embodiment 6, the first signaling indicates a first SRS (Sounding Reference Signal) resource group and a second SRS resource group, each including at least one SRS resource; the first SRS resource group includes at least one SRS resource in a first SRS resource set, and the second SRS resource group includes at least one SRS resource in a second SRS resource set; the first SRS resource set and the second SRS resource set each include at least one SRS resource; any SRS resource in the first SRS resource set includes at least one SRS port, and any SRS resource in the second SRS resource set includes at least one SRS port; the first sub-signal is transmitted via an antenna port identical to the SRS port in the first SRS resource group, and the second sub-signal is transmitted via an antenna port identical to the SRS port in the second SRS resource group; the number of SRS resources included in the first SRS resource set is equal to the first resource count, and the number of SRS resources included in the second SRS resource set is equal to the second resource count.

[0272] As an example, the number of antenna ports transmitting the first sub-signal is equal to 1.

[0273] As an example, the number of antenna ports transmitting the first sub-signal is greater than 1.

[0274] As an example, the number of antenna ports transmitting the second sub-signal is equal to 1.

[0275] As an example, the number of antenna ports transmitting the second sub-signal is greater than 1.

[0276] Typically, the higher-level parameter "usage" associated with the first SRS resource set and the higher-level parameter "usage" associated with the second SRS resource set are both set to "codebook" or both are set to "nonCodebook".

[0277] Typically, the first SRS resource set is identified by an SRS-ResourceSetId, and the second SRS resource set is identified by an SRS-ResourceSetId; the SRS-ResourceSetId of the first SRS resource set is not equal to the SRS-ResourceSetId of the second SRS resource set.

[0278] Typically, the SRS-ResourceSetId of the first SRS resource set is less than the SRS-ResourceSetId of the second SRS resource set.

[0279] Typically, the first SRS resource set and the second SRS resource set are configured by a second higher-level parameter, the name of which includes "srs-ResourceSet".

[0280] As a sub-implementation of the above embodiment, the name of the second higher-level parameter includes "srs-ResourceSetToAddModList".

[0281] As a typical sub-implementation of the above embodiment, the second higher-level parameter configures two SRS resource sets, and the higher-level parameter "usage" associated with the two SRS resource sets is either set to "codebook" or set to "nonCodebook"; the first SRS resource set is the SRS resource set with the smaller SRS-ResourceSetId among the two SRS resource sets, and the second SRS resource set is the SRS resource set with the larger SRS-ResourceSetId among the two SRS resource sets.

[0282] As a sub-implementation of the above embodiment, the second higher-level parameter configures two SRS resource sets, and the higher-level parameter "usage" associated with the two SRS resource sets is either set to "codebook" or set to "nonCodebook"; the first SRS resource set is the first SRS resource set among the two SRS resource sets, and the second SRS resource set is the second SRS resource set among the two SRS resource sets.

[0283] Typically, any SRS resource in the first SRS resource set is identified by an SRS-ResourceId, and any SRS resource in the second SRS resource set is identified by an SRS-ResourceId.

[0284] As an example, any two SRS resources in the first SRS resource set have the same number of SRS ports.

[0285] As an example, in the first SRS resource set, there are two SRS resources with unequal numbers of SRS ports.

[0286] As an example, any two SRS resources in the second SRS resource set have the same number of SRS ports.

[0287] As an example, in the second SRS resource set, there are two SRS resources with unequal numbers of SRS ports.

[0288] As an example, the number of SRS ports of any SRS resource in the first SRS resource set is equal to the number of SRS ports of any SRS resource in the second SRS resource set.

[0289] As an example, the number of SRS ports of an SRS resource in the first SRS resource set is not equal to the number of SRS ports of an SRS resource in the second SRS resource set.

[0290] As an example, the number of SRS ports of any SRS resource in the first SRS resource set is not equal to the number of SRS ports of any SRS resource in the second SRS resource set.

[0291] As an example, the definition of SRS-ResourceSetId is found in 3GPP TS38.331.

[0292] As an example, the definition of SRS-ResourceId is found in 3GPP TS38.331.

[0293] As an example, any SRS resource in the first SRS resource group belongs to the first SRS resource set, and any SRS resource in the second SRS resource group belongs to the second SRS resource set.

[0294] Example 7

[0295] Example 7 illustrates a schematic diagram of how a first field and a second field in the first signaling according to an embodiment of this application are used to determine the antenna port for transmitting a first sub-signal and the antenna port for transmitting a second sub-signal, respectively; as shown in the attached diagram. Figure 7 As shown. In Embodiment 7, the first field and the second field in the first signaling are used to determine the antenna port for transmitting the first sub-signal and the antenna port for transmitting the second sub-signal, respectively. The first field in the first signaling indicates the first SRS resource group in Embodiment 6, and the second field in the first signaling indicates the second SRS resource group in Embodiment 6. The first SRS resource group includes L1 SRS resources, and the second SRS resource group includes L2 SRS resources, where L1 and L2 are positive integers.

[0296] As an example, the first SRS resource group includes only one SRS resource.

[0297] As an example, the second SRS resource group includes only one SRS resource.

[0298] As an example, the first SRS resource group includes multiple SRS resources.

[0299] As one embodiment, the second SRS resource group includes multiple SRS resources.

[0300] As an example, any SRS resource in the first SRS resource group includes only one SRS port, and any SRS resource in the second SRS resource group includes only one SRS port.

[0301] As an example, the number of layers of the first sub-signal is equal to the number of SRS resources included in the first SRS resource group, and the number of layers of the second sub-signal is equal to the number of SRS resources included in the second SRS resource group.

[0302] As one embodiment, the first sub-signal includes L1 layers, and the second sub-signal includes L2 layers; the L1 layers are respectively transmitted by antenna ports that are the same as the SRS ports of the L1 SRS resources, and the L2 layers are respectively transmitted by antenna ports that are the same as the SRS ports of the L2 SRS resources.

[0303] As one embodiment, the first sub-signal includes L1 layers, and the second sub-signal includes L2 layers; the L1 layers are respectively mapped to the same antenna port as the SRS port of the L1 SRS resources, and the L2 layers are respectively mapped to the same antenna port as the SRS port of the L2 SRS resources.

[0304] As one embodiment, the first sub-signal includes L1 layers, and the second sub-signal includes L2 layers; the L1 layers are precoded by a unit array and then mapped to the same antenna port as the SRS port of the L1 SRS resources, and the L2 layers are precoded by a unit array and then mapped to the same antenna port as the SRS port of the L2 SRS resources.

[0305] Example 8

[0306] Example 8 illustrates a schematic diagram of a first field and a second field in a first signaling according to an embodiment of this application, used to determine the precoder of a first sub-signal and a precoder of a second sub-signal, respectively; as shown in the attached diagram. Figure 8As shown. In Embodiment 8, the first field and the second field in the first signaling are used to determine the precoder of the first sub-signal and the precoder of the second sub-signal, respectively. The first signaling includes a third field and a fourth field. The third field in the first signaling indicates a first SRS resource, and the fourth field in the first signaling indicates a second SRS resource. The first SRS resource is an SRS resource in the first SRS resource set in Embodiment 6, and the second SRS resource is an SRS resource in the second SRS resource set in Embodiment 6. The third field and the fourth field each include at least one bit.

[0307] As an example, when the first field and the second field in the first signaling are used to determine the precoder of the first sub-signal and the precoder of the second sub-signal, respectively, the first SRS resource group in Example 6 includes only the first SRS resource, and the second SRS resource group in Example 6 includes only the second SRS resource.

[0308] As one embodiment, the first SRS resource includes multiple SRS ports; the second SRS resource includes multiple SRS ports.

[0309] As an example, the third field indicates an SRI, and the fourth field indicates an SRI.

[0310] As an example, the third domain and the fourth domain each include at least one domain in the DCI.

[0311] As an example, the first field includes the Precoding information and numberoflayers field in the DCI, and the third field includes the SRS resource indicator field in the DCI.

[0312] As an example, the first field includes the first Precoding information and number of layers field in the DCI, and the third field includes the first SRS resource indicator field in the DCI.

[0313] As an example, the second field includes the SecondPrecoding information field in the DCI, and the fourth field includes the Second SRS resource indicator field in the DCI.

[0314] As an example, the second field includes the second Precoding information and number of layers field in the DCI, and the fourth field includes the second SRS resource indicator field in the DCI.

[0315] As an example, the third field precedes the fourth field in the first signaling.

[0316] As one embodiment, the first field in the first signaling indicates a first precoder, and the second field in the first signaling indicates a second precoder; the first sub-signal includes L1 layers, and the second sub-signal includes L2 layers, where L1 and L2 are positive integers; the L1 layers are precoded by the first precoder and mapped to the same antenna port as the SRS port of the first SRS resource, and the L2 layers are precoded by the second precoder and mapped to the same antenna port as the SRS port of the second SRS resource.

[0317] As a sub-implementation of the above embodiments, the first precoder is a matrix or a column vector, and the second precoder is a matrix or a column vector; the number of rows of the first precoder is equal to the number of SRS ports of the first SRS resource, and the number of columns of the first precoder is equal to L1; the number of rows of the second precoder is equal to the number of SRS ports of the second SRS resource, and the number of columns of the second precoder is equal to L2.

[0318] Example 9

[0319] Example 9 illustrates a schematic diagram of K1 layers, K1 tables, and K1 candidate integers according to an embodiment of this application; as attached. Figure 9 As shown. In Embodiment 9, the K1 layers and K1 tables correspond one-to-one; at least one row in any of the K1 tables indicates a TPMI; any of the K1 candidate integers is not less than the number of rows in the corresponding table. (See Appendix) Figure 9 In this context, the K1 layers are represented as layer number #0, ..., layer number (K1-1), the K1 tables are represented as table #0, ..., table (K1-1), and the K1 candidate integers are represented as candidate integer #0, ..., candidate integer (K1-1).

[0320] As an example, the K1 candidate integers and the K1 tables are in one-to-one correspondence, and the table corresponding to any one of the K1 candidate integers is the table corresponding to the layer number of any one candidate integer.

[0321] As an example, TPMI refers to TransmittedPrecodingMatrix Indicator.

[0322] Typically, when the first higher-level parameter is set to "codebook", the K1 levels correspond one-to-one with the K1 tables, and any candidate integer among the K1 candidate integers is not less than the number of rows included in the corresponding table; the name of the first higher-level parameter includes "txConfig".

[0323] As an example, any one of the K1 candidate integers is not less than the number of rows in the corresponding table.

[0324] Typically, the K1 candidate integers are each equal to the number of rows in the K1 tables.

[0325] As an example, any one of the K1 candidate integers is equal to the number of rows in the corresponding table.

[0326] As an example, the K1 candidate integers and K1 coefficients correspond one-to-one, and any one of the K1 candidate integers is equal to the sum of the number of rows in the corresponding table and the corresponding coefficient; the K1 coefficients are all non-negative integers, and at least one of the K1 coefficients is a positive integer.

[0327] As a sub-example of the above embodiment, the K1 coefficients are all positive integers.

[0328] As a sub-example of the above embodiment, one of the K1 coefficients is equal to 0.

[0329] As a sub-example of the above embodiment, the K1 coefficients do not need to be configured.

[0330] As a sub-implementation of the above embodiments, the K1 coefficients are configurable.

[0331] As an example, any row in any of the K1 tables indicates a TPMI or is reserved.

[0332] As an example, any row in any given table of the K1 tables indicates a TPMI or is reserved for a given number of layers; the given number of layers is the number of layers in the K1 layers that corresponds to any given table.

[0333] As an example, any row in any given table of the K1 tables indicates a TPMI and a layer number, or is reserved; the layer number is equal to the layer number in the K1 layers that corresponds to any given table.

[0334] As an example, any row in any given table of the K1 tables indicates a TPMI and a layer number, or is reserved for a given layer number; the layer number is equal to the given layer number, which is the layer number in the K1 layers that corresponds to any given table.

[0335] As an example, any row in any of the K1 tables indicates a TPMI.

[0336] As an example, any row in any of the K1 tables indicates a TPMI and a layer number.

[0337] As a sub-example of the above embodiment, any row indicates that the number of layers is equal to the number of layers in the K1 layers that corresponds to any table.

[0338] As a sub-example of the above embodiments, any row indicates that the number of rows of the precoder corresponding to the TPMI is equal to the number of SRS ports of the second SRS resource in embodiment 8.

[0339] As an example, the value of "codebookSubset" corresponding to any given table in the K1 tables is equal to the value of the third higher-level parameter.

[0340] As an example, if any row in any of the K1 tables indicates a TPMI and a number of layers, then that row indicates only one TPMI and one number of layers.

[0341] As an example, any of the K1 tables includes Tables 7.3.1.1.2-2, 7.3.1.1.2-2A, 7.3.1.1.2-2B, 7.3.1.1.2-2C, 7.3.1.1.2-2D, 7.3.1.1.2-2E, 7.3.1.1.2-3, 7.3.1.1.2-3A, 7.3.1.1.2-4, 7.3.1.1.2-4A, 7.3.1.1.2-4B, 7.3.1.1.2-4C, 7.3.1.1.2-5, or Table... In Table 7.3.1.1.2-5A, there are one or more rows in the part where "codebookSubset" is equal to the value of the third higher-level parameter.

[0342] As an example, the K1 tables respectively include Table 7.3.1.1.2-2, Table 7.3.1.1.2-2A, Table 7.3.1.1.2-2B, Table 7.3.1.1.2-2C, Table 7.3.1.1.2-2D, Table 7.3.1.1.2-2E, Table 7.3.1.1.2-3, Table 7.3.1.1.2-3A, Table 7.3.1.1.2-4, Table 7.3.1.1.2-4A, Table 7.3.1.1.2-4B, Table 7.3.1.1.2-4C, Table 7.3.1.1.2-5, or Table Different rows in the same table in 7.3.1.1.2-5A corresponding to the part where “codebookSubset” is equal to the value of the third higher-level parameter.

[0343] As an example, the K1 tables respectively include Table 7.3.1.1.2-2, Table 7.3.1.1.2-2A, Table 7.3.1.1.2-2B, Table 7.3.1.1.2-2C, Table 7.3.1.1.2-2D, Table 7.3.1.1.2-2E, Table 7.3.1.1.2-3, Table 7.3.1.1.2-3A, Table 7.3.1.1.2-4, Table 7.3.1.1.2-4A, Table 7.3.1.1.2-4B, Table 7.3.1.1.2-4C, Table 7.3.1.1.2-5, or Table The rows corresponding to the K1 levels in the part of the same table in 7.3.1.1.2-5A where “codebookSubset” is equal to the third higher level parameter value.

[0344] As an example, the given table is any one of the K1 tables, and the given table corresponds to a given number of layers among the K1 layers; the given table includes Tables 7.3.1.1.2-2, 7.3.1.1.2-2A, 7.3.1.1.2-2B, 7.3.1.1.2-2C, 7.3.1.1.2-2D, 7.3.1.1.2-2E, 7.3.1.1.2-3, 7.3.1.1.2-3A, 7.3.1.1.2-4, 7.3.1.1.2-4A, 7.3.1.1.2-4B, 7.3.1.1.2-4C, and Table 7.3.1.1.2-4A, 7.3.1.1.2-4B, and 7.3.1.1.2-4C from 3GPP TS38.212. All rows corresponding to the given level in the portion of Table 7.3.1.1.2-5, or Table 7.3.1.1.2-5A, where “codebookSubset” equals the value of the third higher level parameter.

[0345] As an example, the given table is one of the K1 tables, and the given table corresponds to a given number of layers in the K1 layers; the given table includes Tables 7.3.1.1.2-2, 7.3.1.1.2-2A, 7.3.1.1.2-2B, 7.3.1.1.2-2C, 7.3.1.1.2-2D, 7.3.1.1.2-2E, 7.3.1.1.2-3, 7.3.1.1.2-3A, 7.3.1.1.2-4, 7.3.1.1.2-4A, 7.3.1.1.2-4B, 7.3.1.1.2-4C, and Table 7.3.1.1.2-4A, 7.3.1.1.2-4B, and 7.3.1.1.2-4C from 3GPP TS38.212. The rows in the same table in 7.3.1.1.2-5 or Table 7.3.1.1.2-5A that correspond only partially to the given level of the part where “codebookSubset” is equal to the third higher level parameter value.

[0346] As an example, the third higher-level parameter value is the value of the higher-level parameter "codebookSubset" configured for the first node.

[0347] As an example, the third higher-level parameter value is the value of the higher-level parameter "codebookSubset" of the second SRS resource set in the corresponding embodiment 6 in which the first node is configured.

[0348] As an example, the third higher-level parameter value is equal to one of "fullyAndPartialAndNonCoherent", "partialAndNonCoherent", or "nonCoherent".

[0349] As an example, the second field in the first signaling indicates the precoder of the second sub-signal from the K1 tables.

[0350] As an example, the second field in the first signaling indicates the precoder of the second sub-signal and the layer number of the second sub-signal from the K1 tables.

[0351] As an example, the second field in the first signaling indicates the precoder of the second sub-signal from one of the K1 tables.

[0352] Typically, when the time-domain resources occupied by the first sub-signal overlap with those occupied by the second sub-signal, the second field in the first signaling indicates the precoder of the second sub-signal and the layer number of the second sub-signal from the K1 tables.

[0353] Typically, when the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal are orthogonal to each other, the second domain in the first signaling indicates the precoder of the second sub-signal from the table in the K1 tables whose corresponding layer number is equal to the layer number of the first sub-signal.

[0354] Example 10

[0355] Example 10 illustrates a schematic diagram of K1 layers, K1 combinations, and K1 candidate integers according to an embodiment of this application; as shown in the attached diagram. Figure 10 As shown. In Example 10, the K1 layers and K1 combinations correspond one-to-one; any of the K1 candidate integers is not less than the corresponding combination number. (See Appendix) Figure 10 In this context, the K1 layer numbers are represented as layer number #0, ..., layer number (K1-1), the K1 combination numbers are represented as combination number #0, ..., combination number (K1-1), and the K1 candidate integers are represented as candidate integer #0, ..., candidate integer (K1-1).

[0356] As an example, the K1 candidate integers and the K1 combination numbers correspond one-to-one, and the combination number corresponding to any candidate integer among the K1 candidate integers is: the combination number corresponding to the layer number of any candidate integer.

[0357] Typically, when the first higher-level parameter is set to "nonCodebook", the K1 layer numbers correspond to the K1 combination numbers, and any candidate integer among the K1 candidate integers is not less than the corresponding combination number; the name of the first higher-level parameter includes "txConfig".

[0358] As an example, any given candidate integer among the K1 candidate integers is not less than the number of combinations among the K1 combinations that correspond to any given candidate integer.

[0359] As an example, the K1 layers are used to determine the K1 combinations.

[0360] Typically, the K1 candidate integers are each equal to the K1 combination numbers.

[0361] As an example, any given candidate integer among the K1 candidate integers is equal to the number of combinations among the K1 combinations that correspond to the given candidate integer.

[0362] As an example, the K1 candidate integers and K1 coefficients correspond one-to-one, and any candidate integer among the K1 candidate integers is equal to the sum of the corresponding combination number and the corresponding coefficient; the K1 coefficients are all non-negative integers, and at least one of the K1 coefficients is a positive integer.

[0363] As a sub-example of the above embodiment, the K1 coefficients are all positive integers.

[0364] As a sub-example of the above embodiment, one of the K1 coefficients is equal to 0.

[0365] As a sub-example of the above embodiment, the K1 coefficients do not need to be configured.

[0366] As a sub-implementation of the above embodiments, the K1 coefficients are configurable.

[0367] Typically, the K1 combinations are all positive integers.

[0368] As an example, the K1 combinations are all positive integers greater than 1.

[0369] As an example, any one of the K1 combinations is determined by the corresponding layer number and the second resource number in Example 6.

[0370] As an example, the first combination number is any combination number among the K1 combination numbers, and the first given layer number is the layer number among the K1 layer numbers that corresponds to the first combination number; the first combination number is equal to the number of all combinations of taking q1 elements from p1 different elements, where p1 is equal to the second resource number, and q1 is equal to the first given layer number.

[0371] As an example, the first combination number is any combination number among the K1 combination numbers, and the first given layer number is the layer number among the K1 layer numbers that corresponds to the first combination number; the first combination number is represented as or p1 is equal to the second resource number, and q1 is equal to the first given layer number.

[0372] As an example, the first combination number is any combination number among the K1 combination numbers, and the first given layer number is the layer number among the K1 layer numbers that corresponds to the first combination number; the first combination number is equal to p1 is equal to the second resource number, and q1 is equal to the first given layer number.

[0373] Example 11

[0374] Example 11 illustrates a schematic diagram of the bit payload included in the first field of a first signaling according to an embodiment of this application; as attached. Figure 11 As shown. In Embodiment 11, the payload of the bits included in the first field of the first signaling is related to the K2 candidate integers; the K2 candidate integers correspond one-to-one with the K2 layer numbers; the payload of the bits included in the first field of the first signaling is not less than the base-2 logarithm of the sum of the K2 candidate integers. (See Appendix) Figure 11 In this context, the K2 layer numbers are represented as layer number #0, ..., layer number (K2-1), and the K2 candidate integers are represented as candidate integer #0, ..., candidate integer (K2-1).

[0375] As an example, the K2 layers are K2 positive integers.

[0376] As an example, the K2 layers are K2 positive integers not greater than 4.

[0377] As an example, the K2 layers are K2 positive integers not greater than 8.

[0378] As an example, the number of K2 layers is equal to 1, 2, ..., K2, respectively.

[0379] As an example, K2 is equal to K1.

[0380] As an example, K2 is not equal to K1.

[0381] Typically, the bit load of the phrase's first field refers to the number of bits included in the first field.

[0382] Typically, the bit payload of the first field of the phrase refers to the bit width of the first field.

[0383] Typically, the payload of the bits included in the first field of the first signaling is equal to the smallest positive integer that is not less than the base-2 logarithm of the sum of the K2 candidate integers.

[0384] As an example, the payload of the bits included in the first field of the first signaling is equal to the base-2 logarithm of the sum of the K2 candidate integers rounded up.

[0385] Example 12

[0386] Example 12 illustrates a schematic diagram of K2 layers, K2 tables, and K2 candidate integers according to an embodiment of this application; as attached. Figure 12 As shown. In Embodiment 12, the K2 layers and the K2 tables correspond one-to-one; the target SRS resource is the first SRS resource in Embodiment 8, or the target SRS resource is one of the first SRS resource or the second SRS resource in Embodiment 8; any of the K2 tables includes multiple rows, and at least one row in any of the K2 tables indicates a layer and a TPMI; if any row in any of the K2 tables indicates a layer and a TPMI, the layer is equal to the layer corresponding to any of the K2 layers in the table, and the number of rows of the precoder corresponding to the TPMI is equal to the number of SRS ports of the target SRS resource; the K2 candidate integers are respectively equal to the number of rows included in the K2 tables.

[0387] As an example, any row in any of the K2 tables indicates a layer number and a TPMI or is reserved.

[0388] As an example, any row in any of the K2 tables indicates a layer number and a TPMI.

[0389] As an example, the number of layers indicated by any row in any of the K2 tables is equal to the number of layers corresponding to any of the K2 tables, and the number of rows of the precoder corresponding to a TPMI indicated by any row in any of the K2 tables is equal to the number of SRS ports of the target SRS resource.

[0390] As an example, when the first higher-level parameter is set to "codebook", the K2 levels correspond one-to-one with the K2 tables, and the K2 candidate integers are respectively equal to the number of rows included in the K2 tables; the name of the first higher-level parameter includes "txConfig".

[0391] As an example, the target SRS resource is the first SRS resource.

[0392] As an example, the target SRS resource is one of the first SRS resource or the second SRS resource.

[0393] As an example, if any row in any of the K2 tables is reserved, it is reserved for the corresponding layer.

[0394] As an example, if any row in any of the K2 tables indicates a TPMI and a number of layers, then that row indicates only one TPMI and one number of layers.

[0395] As an example, the value of "codebookSubset" corresponding to any of the K2 tables is equal to the value of the fourth higher-level parameter.

[0396] As an example, any given table among the K2 tables includes Tables 7.3.1.1.2-2, 7.3.1.1.2-2A, 7.3.1.1.2-2B, 7.3.1.1.2-2C, 7.3.1.1.2-2D, 7.3.1.1.2-2E, 7.3.1.1.2-3, 7.3.1.1.2-3A, 7.3.1.1.2-4, 7.3.1.1.2-4A, 7.3.1.1.2-4B, 7.3.1.1.2-4C, 7.3.1.1.2-5, or Table... In a Table of 7.3.1.1.2-5A, all or part of the rows corresponding to the portion where “codebookSubset” is equal to the fourth higher-level parameter value correspond to a given level number, where the given level number is the level corresponding to any given table.

[0397] As an example, the fourth higher-level parameter value is the value of the higher-level parameter "codebookSubset" configured for the first node.

[0398] As an example, the fourth higher-level parameter value is the value of the higher-level parameter "codebookSubset" configured on the first node corresponding to the SRS resource set to which the target SRS resource belongs.

[0399] As an example, the fourth higher-level parameter value is equal to one of "fullyAndPartialAndNonCoherent", "partialAndNonCoherent", or "nonCoherent".

[0400] As an example, the first field in the first signaling indicates the precoder of the first sub-signal and the layer number of the first sub-signal from the K2 tables.

[0401] Example 13

[0402] Example 13 illustrates a schematic diagram of K2 layers, K2 combinations, and K2 candidate integers according to an embodiment of this application; as shown in the attached diagram. Figure 13 As shown. In Embodiment 13, the K2 layers and the K2 combinations are in one-to-one correspondence, and the K2 layers are used to determine the K2 combinations; the target resource number is the first resource number in Embodiment 6, or the target resource number is one of the first resource number or the second resource number in Embodiment 6; any combination number among the K2 combinations is equal to the number of combinations of elements corresponding to the number of layers taken from the different elements of the target resource number; the K2 candidate integers are each equal to the K2 combinations.

[0403] As an example, when the first higher-level parameter is set to "nonCodebook", the K2 layer numbers and the K2 combination numbers correspond one-to-one, and the K2 candidate integers are equal to the K2 combination numbers respectively; the name of the first higher-level parameter includes "txConfig".

[0404] As an example, the target number of resources is the first number of resources.

[0405] As an example, the target number of resources is one of the first number of resources or the second number of resources.

[0406] As an example, the second combination number is any one of the K2 combination numbers, and the second given layer number is the layer number among the K2 layer numbers that corresponds to the second combination number; the second combination number is represented as or p2 is equal to the target number of resources, and q2 is equal to the second given number of layers.

[0407] Example 14

[0408] Example 14 illustrates a schematic diagram of K1 according to an embodiment of this application in relation to at least one of a first maximum number of layers, a second maximum number of layers, and a third maximum number of layers; as shown in the appendix. Figure 14 As shown.

[0409] As an example, the first maximum number of layers is configured by higher-level parameters.

[0410] As a sub-implementation of the above embodiments, the name of the higher-level parameter configured for the first maximum number of layers includes "maxMIMO-Layers" or "maxRank".

[0411] As an example, the first maximum number of layers is applied to the first SRS resource set in Example 6.

[0412] As one embodiment, the first maximum number of layers is applied to only the first SRS resource set in the first SRS resource set and the second SRS resource set in embodiment 6, or the first maximum number of layers is applied to both the first SRS resource set and the second SRS resource set in embodiment 6.

[0413] As an example, the second maximum number of layers is configured by higher-level parameters.

[0414] As a sub-implementation of the above embodiments, the name of the higher-level parameter configured for the second maximum number of layers includes "maxMIMO-Layers" or "maxRank".

[0415] As an example, the second maximum number of layers is applied to the second SRS resource set in Example 6.

[0416] As an example, the second maximum number of layers is applied to the first SRS resource set and only the second SRS resource set in the second SRS resource set in Example 6.

[0417] As an example, the first maximum number of layers and the second maximum number of layers are configured separately.

[0418] Typically, when the first node is configured with two maximum layers that are respectively applied to the first SRS resource set and the second SRS resource set in Embodiment 6, the first maximum layer is the maximum layer applied to the first SRS resource set, and the second maximum layer is the maximum layer applied to the second SRS resource set.

[0419] As a sub-implementation of the above embodiments, the first maximum number of layers is not applied to the second SRS resource set, and the second maximum number of layers is not applied to the first SRS resource set.

[0420] Typically, when the first node is configured with a maximum number of layers that are applied to both the first SRS resource set and the second SRS resource set, the first maximum number of layers is the maximum number of layers.

[0421] As an example, the phrase "a maximum layer number applied to an SRS resource set" means that the number of layers of signals transmitted by antenna ports that are the same as the SRS ports of at least one SRS resource in the SRS resource set is not greater than the maximum layer number.

[0422] As an example, the meaning of applying a maximum layer number to an SRS resource set includes: the maximum number of layers of signals transmitted by an antenna port that is the same as the SRS port of at least one SRS resource in the SRS resource set is equal to the maximum layer number.

[0423] As an example, the statement that a maximum number of layers is not applied to an SRS resource set means that the number of layers of a signal transmitted by an antenna port that is the same as the SRS port of at least one SRS resource in the SRS resource set is not limited to the maximum number of layers.

[0424] As an example, the statement that a maximum layer number is not applied to an SRS resource set means that the maximum layer number of a signal transmitted by an antenna port that is the same as the SRS port of at least one SRS resource in the SRS resource set is unrelated to the maximum layer number.

[0425] As an example, the statement "a maximum layer number is not applied to an SRS resource set" means that the maximum layer number of the signal transmitted by the same antenna port as the SRS port of at least one SRS resource in the SRS resource set and the maximum layer number are configured separately.

[0426] As an example, the third maximum number of layers is configured by higher-level parameters.

[0427] As a sub-example of the above embodiment, the name of the higher-level parameter configured for the third maximum number of layers includes "maxMIMO-Layers" or "maxRank".

[0428] As an example, the third maximum number of layers is the maximum sum of the number of layers of signals transmitted on antenna ports with the same SRS ports of SRS resources in the first SRS resource set and the number of layers of signals transmitted on antenna ports with the same SRS ports of SRS resources in the second SRS resource set.

[0429] As an example, the third maximum number of layers and the first maximum number of layers are configured separately.

[0430] As an example, the third maximum number of layers, the first maximum number of layers, and the second maximum number of layers are all configured separately.

[0431] As an example, the phrase "configured separately" means that it is configured by different higher-level parameters, and the different higher-level parameters have different names.

[0432] As an example, the phrase being configured separately means that it is configured to different values ​​by the same higher-level parameter.

[0433] As an example, the third maximum number of layers does not need to be configured separately, given that the first maximum number of layers has been configured.

[0434] As an example, based on the configuration of the first maximum number of layers and the second maximum number of layers, the third maximum number of layers does not need to be configured separately.

[0435] As an example, the third maximum number of layers does not need to be configured separately, provided that at least one of the first maximum number of layers and the second maximum number of layers is configured.

[0436] As an example, the statement that the third maximum number of layers does not require additional configuration means that the third maximum number of layers can be obtained from the first maximum number of layers.

[0437] As an example, the statement that the third maximum number of layers does not require additional configuration means that the third maximum number of layers can be obtained from the first maximum number of layers and the second maximum number of layers.

[0438] As an example, the third maximum number of layers is equal to the first maximum number of layers.

[0439] As an example, the third maximum number of layers is equal to either the first maximum number of layers or the second maximum number of layers.

[0440] As an example, the third maximum number of layers is equal to the larger of the first maximum number of layers and the second maximum number of layers.

[0441] As an example, the third maximum number of layers is equal to the sum of the first maximum number of layers and the second maximum number of layers.

[0442] As an example, the third maximum number of layers is not less than the first maximum number of layers.

[0443] As an example, the third maximum number of layers is not less than the first maximum number of layers, nor is it less than the second maximum number of layers.

[0444] As an example, the first node is configured with at least the first maximum layer number, the second maximum layer number, and the third maximum layer number.

[0445] As an example, the first node is configured with the first maximum number of layers, and which of the second maximum number of layers and the third maximum number of layers is related to whether the time domain resources occupied by the first sub-signal and the time domain resources occupied by the second sub-signal overlap.

[0446] As an example, when the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal are orthogonal to each other, the first node is configured with the first maximum number of layers, and only the first maximum number of layers among the second maximum number of layers and the third maximum number of layers.

[0447] As an example, when the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal are orthogonal to each other, the first node is configured with the first maximum number of layers, and only the first maximum number of layers and the second maximum number of layers are among the second maximum number of layers and the third maximum number of layers.

[0448] As an example, when the time-domain resources occupied by the first sub-signal overlap with the time-domain resources occupied by the second sub-signal, the first node is configured with the first maximum number of layers, and is also configured with at least one of the second maximum number of layers and the third maximum number of layers.

[0449] As an example, the first node is configured with at least one of the second maximum number of layers and the third maximum number of layers if and only if the time-domain resources occupied by the first sub-signal overlap with the time-domain resources occupied by the second sub-signal.

[0450] As an example, the first node is configured with the third maximum layer if and only if the time-domain resources occupied by the first sub-signal overlap with the time-domain resources occupied by the second sub-signal.

[0451] As an example, when the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal are orthogonal to each other, the first node is configured with the first maximum number of layers, and only the first maximum number of layers among the second maximum number of layers and the third maximum number of layers; when the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal overlap, the first node is configured with the first maximum number of layers, and is also configured with at least one of the second maximum number of layers and the third maximum number of layers.

[0452] As an example, when the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal are orthogonal to each other, the first node is configured with the first maximum number of layers, and only the first maximum number of layers and the second maximum number of layers are configured with the third maximum number of layers; when the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal overlap, the first node is configured with the first maximum number of layers, the second maximum number of layers, and the third maximum number of layers.

[0453] As an example, at least one of the first maximum number of layers, the second maximum number of layers, and the third maximum number of layers is used to determine the K1.

[0454] As an example, K1 is related only to the first maximum layer number, the second maximum layer number, and the third maximum layer number.

[0455] As an example, K1 is related to the first maximum number of layers.

[0456] As an example, K1 is equal to the first maximum number of layers.

[0457] As an example, K1 is equal to the minimum of the first maximum number of layers and the second number of resources in Example 6.

[0458] As an example, K1 is equal to the first maximum number of layers minus a first coefficient, where the first coefficient is a positive integer.

[0459] As an example, K1 is equal to the minimum of the difference between the first maximum layer number and the first coefficient, and the second resource number in Example 6, where the first coefficient is a positive integer.

[0460] As an example, K1 is related only to the second maximum layer among the first maximum layer, the second maximum layer, and the third maximum layer.

[0461] As an example, K1 is related to the second maximum number of layers.

[0462] As an example, K1 is equal to the second maximum number of layers.

[0463] As an example, K1 is equal to the minimum of the second maximum number of layers and the second number of resources in Example 6.

[0464] As an example, K1 is equal to the second maximum number of layers minus the first coefficient, where the first coefficient is a positive integer.

[0465] As an example, K1 is equal to the minimum of the difference between the second maximum layer number and the first coefficient, and the second resource number in Example 6, where the first coefficient is a positive integer.

[0466] As an example, K1 is related only to the first maximum number of layers and the third maximum number of layers.

[0467] As an example, K1 is related to both the first maximum number of layers and the third maximum number of layers.

[0468] As an example, K1 is equal to the minimum of the differences between the first maximum number of layers and the third maximum number of layers minus the first coefficient, where the first coefficient is a positive integer.

[0469] As an example, K1 is equal to the minimum of the first maximum layer number, the difference between the third maximum layer number and the first coefficient, and the second resource number in Example 6, where the first coefficient is a positive integer.

[0470] As an example, K1 is related only to the second maximum number of layers and the third maximum number of layers.

[0471] As an example, K1 is related to both the second maximum number of layers and the third maximum number of layers.

[0472] As an example, K1 is equal to the minimum of the differences between the second maximum number of layers and the third maximum number of layers minus the first coefficient, where the first coefficient is a positive integer.

[0473] As an example, K1 is equal to the minimum of the second maximum layer number, the difference between the third maximum layer number and the first coefficient, and the second resource number in Example 6, where the first coefficient is a positive integer.

[0474] As an example, K1 is related to the first maximum number of layers, the second maximum number of layers, and the third maximum number of layers.

[0475] As an example, the first coefficient is fixed at 1.

[0476] As an example, the first coefficient is greater than 1.

[0477] As an example, the first coefficient does not need to be configured.

[0478] As an example, the first coefficient is configurable.

[0479] As an example, the first coefficient is configured by RRC signaling.

[0480] As an example, the first coefficient is configured by MAC CE.

[0481] As an example, the first coefficient is configured by DCI.

[0482] As an example, the first coefficient is equal to the number of layers of the first sub-signal.

[0483] Example 15

[0484] Example 15 illustrates a schematic diagram relating the value of K1 according to an embodiment of this application to whether the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal overlap; as shown in the attached diagram. Figure 15 As shown.

[0485] As an example, when the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal are orthogonal to each other, K1 is related only to the fifth maximum layer among the first maximum layer, the second maximum layer, and the third maximum layer; the fifth maximum layer is either the first maximum layer or the second maximum layer.

[0486] As an example, when the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal are orthogonal to each other, K1 is equal to the fifth maximum layer number.

[0487] As an example, when the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal are orthogonal to each other, K1 is equal to the minimum value between the fifth maximum layer number and the second resource number in Example 6.

[0488] As an example, when the first node is configured with the first maximum number of layers and the second maximum number of layers respectively applied to the first SRS resource set and the second SRS resource set in Example 6, the fifth maximum number of layers is the second maximum number of layers; when the first node is configured with the first maximum number of layers applied to both the first SRS resource set and the second SRS resource set, the fifth maximum number of layers is the first maximum number of layers.

[0489] As an example, when the time-domain resources occupied by the first sub-signal overlap with the time-domain resources occupied by the second sub-signal, K1 is related to the third maximum layer number.

[0490] As an example, when the time-domain resources occupied by the first sub-signal overlap with the time-domain resources occupied by the second sub-signal, K1 is equal to the third maximum number of layers minus the first coefficient in Example 14.

[0491] As an example, when the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal overlap, K1 is equal to the minimum value between the difference obtained by subtracting the first coefficient in Example 14 from the third maximum number of layers and the second resource number in Example 6.

[0492] As an example, when the time-domain resources occupied by the first sub-signal overlap with the time-domain resources occupied by the second sub-signal, K1 is related to the fourth maximum layer and the third maximum layer among the first maximum layer, the second maximum layer, and the third maximum layer; the fourth maximum layer is either the first maximum layer or the second maximum layer.

[0493] As an example, when the time-domain resources occupied by the first sub-signal overlap with those occupied by the second sub-signal, K1 is equal to the minimum of the difference between the fourth maximum number of layers and the third maximum number of layers minus the first coefficient in Example 14.

[0494] As an example, when the time-domain resources occupied by the first sub-signal overlap with the time-domain resources occupied by the second sub-signal, K1 is equal to the minimum of the fourth maximum layer number, the difference between the third maximum layer number and the first coefficient obtained in Example 14, and the second resource number in Example 6.

[0495] As an example, when the first node is configured with the first maximum number of layers and the second maximum number of layers respectively applied to the first SRS resource set and the second SRS resource set in Example 6, the fourth maximum number of layers is the second maximum number of layers; when the first node is configured with the first maximum number of layers applied to both the first SRS resource set and the second SRS resource set, the fourth maximum number of layers is the first maximum number of layers.

[0496] As an example, when the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal are orthogonal to each other, K1 is equal to the fifth maximum layer number; when the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal overlap, K1 is equal to the third maximum layer number minus the first coefficient in Example 14.

[0497] As an example, when the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal are orthogonal to each other, K1 is equal to the fifth maximum layer number; when the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal overlap, K1 is equal to the minimum value of the difference between the fourth maximum layer number and the third maximum layer number minus the first coefficient in Example 14.

[0498] As an example, when the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal are orthogonal to each other, K1 is equal to the minimum value between the fifth maximum layer number and the second resource number in Example 6; when the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal overlap, K1 is equal to the minimum value between the difference obtained by subtracting the first coefficient in Example 14 from the third maximum layer number and the second resource number in Example 6.

[0499] As an example, when the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal are orthogonal to each other, K1 is equal to the minimum value among the fifth maximum layer number and the second resource number in Example 6; when the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal overlap, K1 is equal to the minimum value among the fourth maximum layer number, the difference obtained by subtracting the first coefficient in Example 14 from the third maximum layer number, and the second resource number in Example 6.

[0500] As an example, regardless of whether the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal overlap, the number of K1 layers is equal to 1, 2, ..., K1 respectively.

[0501] As an example, the value of the K1 layers is related to whether the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal overlap.

[0502] As an example, when the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal are orthogonal to each other, the number of K1 layers is equal to 1, 2, ..., K1 respectively.

[0503] As an example, K1 is related to the number of layers of the first sub-signal.

[0504] As an example, the values ​​of the K1 layers are related to the number of layers of the first sub-signal.

[0505] As an example, when the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal overlap, K1 is equal to the second reference integer minus the first reference integer plus 1; the first reference integer is equal to the maximum value between the difference between the number of layers of the first sub-signal minus the second coefficient and 1 and the fourth maximum number of layers; the second reference integer is equal to the minimum value among the sum of the number of layers of the first sub-signal and the second coefficient, the fourth maximum number of layers, the difference between the third maximum number of layers minus the number of layers of the first sub-signal, and the second number of resources; the second coefficient is a non-negative integer.

[0506] As a sub-implementation of the above embodiment, the K1 layers are respectively equal to the first reference integer, the first reference integer + 1, ..., the second reference integer.

[0507] As a sub-implementation of the above embodiments, the second coefficient is the default.

[0508] As a sub-implementation of the above embodiment, the second coefficient is fixed.

[0509] As a sub-implementation of the above embodiments, the second coefficient is configured by a higher-layer signaling.

[0510] As a sub-example of the above embodiment, the second coefficient is equal to 0.

[0511] As a sub-implementation of the above embodiment, the second coefficient is greater than 0.

[0512] As an example, when the time-domain resources occupied by the first sub-signal overlap with the time-domain resources occupied by the second sub-signal, K1 is equal to the third coefficient, the minimum value among the difference between the third maximum layer number and the layer number of the first sub-signal, and the second resource number; the third coefficient is a positive integer.

[0513] As a sub-implementation of the above embodiments, the third coefficient is defaulted.

[0514] As a sub-example of the above embodiment, the third coefficient is fixed.

[0515] As a sub-implementation of the above embodiments, the third coefficient is configured by a higher-layer signaling.

[0516] As a sub-implementation of the above embodiment, the third coefficient is equal to 2 multiplied by the second coefficient, the second coefficient being a positive integer, and the second coefficient being configured by a higher-layer signaling.

[0517] Example 16

[0518] Example 16 illustrates a schematic diagram relating the value of K1 according to an embodiment of this application to whether the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal overlap; as shown in the attached diagram. Figure 16 As shown. In Embodiment 16, when the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal overlap, the load of the bits included in the second domain of the first signaling is related to N layer pairs, where N is equal to the first maximum layer number; any one of the N layer pairs includes two layers; the N layer pairs correspond one-to-one with N reference integers; the load of the bits included in the second domain of the first signaling is not less than the base-2 logarithm of the maximum value among the N reference integers; the first reference layer pair is one of the N layer pairs, where K1 is equal to the absolute value of the difference between the two layers in the first reference layer pair plus 1, and the K1 layers are respectively equal to the first layer in the first reference layer pair, the first layer in the first reference layer pair + 1, ..., the second layer in the first reference layer pair.

[0519] As an example, in any of the N layer number pairs, the second layer number is greater than the first layer number.

[0520] As an example, the first reference layer pair is any one of the N layer pairs.

[0521] As an example, the payload of the bits included in the second field of the first signaling is equal to the base-2 logarithm of the maximum value among the N reference integers, rounded up.

[0522] As an example, the first reference layer pair is the layer pair that corresponds to the maximum value among the N reference integers.

[0523] As an example, the N layer pairs correspond one-to-one with the N reference layer numbers, and the N reference layer numbers are respectively equal to 1, ..., N; the first layer number in any of the N layer pairs is equal to the maximum value between the difference between the corresponding reference layer number and the second coefficient, and 1; the second layer number in any of the N layer pairs is equal to the minimum value between the sum of the corresponding reference layer number and the second coefficient, and the third maximum layer number minus the corresponding reference layer number; the second coefficient is a positive integer.

[0524] As an example, the N layer pairs correspond one-to-one with the N reference layers, and the N reference layers are respectively equal to 1, ..., N; the first layer in any of the N layer pairs is equal to the maximum value between the difference between the corresponding reference layer minus the second coefficient and 1; the second layer in any of the N layer pairs is equal to the sum of the corresponding reference layer and the second coefficient; the fourth maximum layer, the third maximum layer minus the corresponding reference layer, and the minimum value among the three: the second coefficient is a positive integer.

[0525] As an example, the N layer pairs correspond one-to-one with the N reference layers, and the N reference layers are equal to 1, ..., N respectively; the first layer in any of the N layer pairs is equal to the maximum value between the difference between the corresponding reference layer and the second coefficient, and 1; the second layer in any of the N layer pairs is equal to the sum of the corresponding reference layer and the second coefficient; the third maximum layer is the minimum value among the corresponding reference layer and the second resource number; the second coefficient is a positive integer.

[0526] As an example, the N layer pairs correspond one-to-one with the N reference layers, and the N reference layers are equal to 1, ..., N respectively; the first layer in any of the N layer pairs is equal to the maximum value between the difference between the corresponding reference layer minus the second coefficient and 1; the second layer in any of the N layer pairs is equal to the sum of the corresponding reference layer and the second coefficient; the third maximum layer minus the corresponding reference layer, the fourth maximum layer in Example 15, and the second resource number are the minimum values; the second coefficient is a positive integer.

[0527] As an example, the N layer pairs and N reference layers correspond one-to-one, and the N reference layers are equal to 1, ..., N respectively; the first layer in any of the N layer pairs is equal to the maximum value of the difference between the corresponding reference layer minus the second coefficient and 1, and the minimum value among the fourth maximum layer in Example 15; the second layer in any of the N layer pairs is equal to the sum of the corresponding reference layer and the second coefficient; the third maximum layer minus the corresponding reference layer, the fourth maximum layer, and the minimum value among the second resource number; the second coefficient is a positive integer.

[0528] As an example, the N layer pairs correspond one-to-one with the N table groups, and the N table groups correspond one-to-one with the N reference integers; a given table group is any one of the N table groups, and a given layer pair is the layer pair among the N layer pairs that corresponds to the given table group; the given table group includes S tables, where S equals the second layer number minus the first layer number plus 1 in the given layer pair, and the S tables correspond to S layers respectively, where the S layers are respectively equal to the first layer number in the given layer pair, the first layer number plus 1 in the given layer pair, ..., the second layer number in the given layer pair; a given table is any one of the S tables, and the given table corresponds to a given layer number among the S layers; the given table includes multiple rows, and any row in the given table indicates a layer number and a TPMI; the layer number indicated by any row in the given table is equal to the given layer number; the reference integers among the N reference integers that correspond to the given layer pair are equal to the sum of the number of rows included in the S tables.

[0529] As a sub-example of the above embodiments, the number of rows of the precoder corresponding to a TPMI indicated by any row in the given table is equal to the number of SRS ports of the second SRS resource in Embodiment 8.

[0530] As a sub-implementation of the above embodiment, the second field in the first signaling indicates the precoder of the second sub-signal from one of the N table groups.

[0531] As a sub-implementation of the above embodiment, the target reference layer number is the layer number of the first sub-signal, and the second field in the first signaling indicates the precoder of the second sub-signal and the layer number of the second sub-signal from the table group corresponding to the layer number pair corresponding to the target reference layer number in the N table groups.

[0532] As an example, the N layer pairs and N combination arrays correspond one-to-one; the given combination array is any combination array among the N combination arrays, and the given layer pair is the layer pair among the N layer pairs that corresponds to the given combination array; the given combination array includes S combination numbers, where S is equal to the second layer number minus the first layer number plus 1 in the given layer pair, the S tables correspond to S layers respectively, and the S layers are respectively equal to the first layer number in the given layer pair, the first layer number in the given layer pair + 1, ..., the second layer number in the given layer pair; the given combination number is any combination number among the S combination numbers, and the given combination number corresponds to a given layer number among the S layers; the given combination number is equal to the number of all combinations of taking the given layer number of elements from the second resource number of different elements in Example 6; the reference integers among the N reference integers that correspond to the given layer pair are equal to the sum of the S combination numbers.

[0533] Example 17

[0534] Example 17 illustrates a schematic diagram of K2 according to an embodiment of this application in relation to at least one of a first maximum number of layers, a second maximum number of layers, and a third maximum number of layers; as shown in the appendix. Figure 17 As shown.

[0535] As an example, at least one of the first maximum number of layers, the second maximum number of layers, and the third maximum number of layers is used to determine the K2.

[0536] As an example, K2 is related only to the first maximum layer number among the first maximum layer number, the second maximum layer number, and the third maximum layer number.

[0537] As an example, K2 is related to the first maximum number of layers.

[0538] As an example, K2 is equal to the first maximum number of layers.

[0539] As an example, K2 is equal to the minimum of the first maximum number of layers and the first number of resources in Example 6.

[0540] As an example, regardless of the relationship between the first maximum number of layers and the second maximum number of layers, K2 is always equal to the first maximum number of layers.

[0541] As an example, regardless of the relationship between the first maximum number of layers and the second maximum number of layers, K2 is always equal to the minimum of the first maximum number of layers and the first number of resources in Example 6.

[0542] As an example, K2 is related only to the first maximum number of layers and the second maximum number of layers among the first maximum number of layers, the second maximum number of layers, and the third maximum number of layers.

[0543] As an example, K2 is related to both the first maximum number of layers and the second maximum number of layers.

[0544] As an example, K2 is equal to the maximum value between the first maximum number of layers and the second maximum number of layers.

[0545] As an example, K2 is equal to the minimum of the target maximum number of layers and the target number of resources, and the target maximum number of layers is equal to the maximum of the first maximum number of layers and the second maximum number of layers; if the target maximum number of layers is equal to the first maximum number of layers, the target number of resources is equal to the first number of resources in Example 6; if the target maximum number of layers is equal to the second maximum number of layers, the target number of resources is equal to the second number of resources in Example 6.

[0546] As an example, the value of K2 is related to the first maximum number of layers, the second maximum number of layers, the number of SRS ports of the first SRS resource and the number of SRS ports of the second SRS resource in Example 8.

[0547] As an example, the value of K2 is related to the first maximum number of layers, the second maximum number of layers, the first number of resources, and the second number of resources in Example 6.

[0548] As an example, K2 is equal to the minimum of the target maximum number of layers and the target number of resources, and the target maximum number of layers is equal to the first maximum number of layers or the second maximum number of layers; if the target maximum number of layers is equal to the first maximum number of layers, the target number of resources is equal to the first number of resources in Example 6; if the target maximum number of layers is equal to the second maximum number of layers, the target number of resources is equal to the second number of resources in Example 6.

[0549] As a sub-example of the above embodiments, the target maximum number of layers is equal to the first maximum number of layers or the second maximum number of layers and the first maximum number of layers. The second maximum number of layers is related to the number of SRS ports of the first SRS resource and the number of SRS ports of the second SRS resource in embodiment 8.

[0550] As a sub-example of the above embodiments, the target maximum number of layers is equal to the first maximum number of layers or the second maximum number of layers and the first maximum number of layers. The second maximum number of layers is related to the first number of resources and the second number of resources in embodiment 6.

[0551] As an example, K2 is related only to the first maximum number of layers and the third maximum number of layers.

[0552] As an example, K2 is related to both the first maximum number of layers and the third maximum number of layers.

[0553] As an example, K2 is related to the first maximum number of layers, the second maximum number of layers, and the third maximum number of layers.

[0554] As an example, the payload of the bits included in the first field of the first signaling is independent of whether the time domain resources occupied by the first sub-signal and the time domain resources occupied by the second sub-signal overlap.

[0555] As an example, regardless of whether the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal overlap, the load of the bits included in the first field of the first signaling is equal to the base-2 logarithm of the sum of the K2 candidate integers.

[0556] As an example, the value of K2 is independent of whether the time-domain resources occupied by the first sub-signal and the second sub-signal overlap.

[0557] As an example, the value of K2 is related to whether the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal overlap.

[0558] Example 18

[0559] Example 18 illustrates a schematic diagram of K2 in relation to a first maximum number of layers and a second maximum number of layers according to an embodiment of this application; as shown in the appendix. Figure 18 As shown. In Embodiment 18, K2 is related to both the first maximum layer number and the second maximum layer number; the first maximum layer number and the second maximum layer number are configured separately; the first maximum layer number is applied to the first SRS resource set in Embodiment 6, and the second maximum layer number is applied to the second SRS resource set in Embodiment 6; K2 is equal to the target maximum layer number, and the target maximum layer number is equal to the first maximum layer number or the second maximum layer number; the first higher-level parameter is set to "codebook", and the name of the first higher-level parameter includes "txConfig".

[0560] As an example, whether the target maximum number of layers is equal to the first maximum number of layers or the second maximum number of layers is related to the number of SRS ports of the first SRS resource and the number of SRS ports of the second SRS resource in Example 8.

[0561] As an example, when the number of SRS ports of the first SRS resource and the number of SRS ports of the second SRS resource are not equal in Example 8, if the number of SRS ports of the first SRS resource is greater than the number of SRS ports of the second SRS resource, the target maximum number of layers is equal to the first maximum number of layers; if the number of SRS ports of the first SRS resource is less than the number of SRS ports of the second SRS resource, the target maximum number of layers is equal to the second maximum number of layers.

[0562] As an example, when the number of SRS ports of the first SRS resource is equal to the number of SRS ports of the second SRS resource, the target maximum number of layers is equal to the maximum number of layers applied to the SRS resource set with the smaller SRS-ResourceSetId in the first SRS resource set and the second SRS resource set, between the first maximum number of layers and the second maximum number of layers.

[0563] As an example, when the number of SRS ports of the first SRS resource is equal to the number of SRS ports of the second SRS resource, the target maximum number of layers is equal to the larger of the first maximum number of layers and the second maximum number of layers.

[0564] As an example, the number of SRS ports of the first SRS resource is equal to the number of first ports, and the number of SRS ports of the second SRS resource is equal to the number of second ports; S1 reference layers and the number of first ports are used to determine S1 tables, where S1 is equal to the first maximum layer, and the S1 reference layers are respectively equal to 1, 2, ..., S1; S2 reference layers and the number of second ports are used to determine S2 tables, where S2 is equal to the second maximum layer, and the S2 reference layers are respectively equal to 1, 2, ..., S2; any of the S1 tables and the S2 tables includes multiple rows; any row in any of the S1 tables indicates a layer and a TPMI, and any row in any of the S1 tables indicates a... The number of layers is equal to the corresponding reference layer number. The number of rows of the precoder corresponding to a TPMI indicated by any row in any table of the S1 tables is equal to the first port number. The number of layers and a TPMI are indicated by any row in any table of the S2 tables. The number of layers is equal to the corresponding reference layer number. The number of rows of the precoder corresponding to a TPMI indicated by any row in any table of the S2 tables is equal to the second port number. When the total number of rows included in the S1 tables is greater than the total number of rows included in the S2 tables, the target maximum number of layers is the first maximum number of layers. When the total number of rows included in the S1 tables is less than the total number of rows included in the S2 tables, the target maximum number of layers is the second maximum number of layers.

[0565] As a sub-implementation of the above embodiment, when the total number of rows included in the S1 tables is equal to the total number of rows included in the S2 tables, the target maximum number of layers is either the first maximum number of layers or the second maximum number of layers.

[0566] As a sub-implementation of the above embodiments, the first field in the first signaling indicates the precoder of the first sub-signal from the S1 tables, or the first field in the first signaling indicates the precoder of the first sub-signal from the S2 tables.

[0567] As a sub-implementation of the above embodiments, when the total number of rows included in the S1 tables is greater than the total number of rows included in the S2 tables, K2 is equal to S1, and the K2 tables in embodiment 12 are the S1 tables; when the total number of rows included in the S1 tables is less than the total number of rows included in the S2 tables, K2 is equal to S2, and the K2 tables are the S2 tables.

[0568] As an example, the target SRS resource in Example 12 is related to whether it is the first SRS resource or the second SRS resource, the first maximum number of layers, the second maximum number of layers, the number of SRS ports of the first SRS resource, and the number of SRS ports of the second SRS resource.

[0569] As an example, when the target maximum number of layers is equal to the first maximum number of layers, the target SRS resource in Example 12 is the first SRS resource; when the target maximum number of layers is equal to the second maximum number of layers, the target SRS resource in Example 12 is equal to the second SRS resource.

[0570] Example 19

[0571] Example 19 illustrates a schematic diagram of K2 in relation to a first maximum number of layers and a second maximum number of layers according to an embodiment of this application; as shown in the appendix. Figure 19 As shown. In Example 19, K2 is related to both the first maximum layer number and the second maximum layer number; the first maximum layer number and the second maximum layer number are configured separately; the first maximum layer number is applied to the first SRS resource set in Example 6, and the second maximum layer number is applied to the second SRS resource set in Example 6; K2 is equal to the minimum of the target maximum layer number and the target resource number; the target maximum layer number is equal to the first maximum layer number or the second maximum layer number; when the target maximum layer number is equal to the first maximum layer number, the target resource number is equal to the first resource number in Example 6; when the target maximum layer number is equal to the second maximum layer number, the target resource number is equal to the second resource number in Example 6; the first higher-level parameter is set to "nonCodebook", and the name of the first higher-level parameter includes "txConfig".

[0572] As an example, whether the target maximum number of layers is the first maximum number of layers or the second maximum number of layers is related to both the first number of resources and the second number of resources.

[0573] As an example, when the first number of resources is greater than the second number of resources, the target maximum number of layers is equal to the first maximum number of layers; when the first number of resources is less than the second number of resources, the target maximum number of layers is equal to the second maximum number of layers.

[0574] As an example, when the first resource number is equal to the second resource number, the target maximum layer number is equal to either the first maximum layer number or the second maximum layer number.

[0575] As an example, when the first resource number is equal to the second resource number, the target maximum layer number is equal to the larger of the first maximum layer number or the second maximum layer number.

[0576] As an example, when the first number of resources is equal to the second number of resources, if the SRS-ResourceSetId of the first SRS resource set is less than the SRS-ResourceSetId of the second SRS resource set, the target maximum number of layers is equal to the first maximum number of layers; if the SRS-ResourceSetId of the first SRS resource set is greater than the SRS-ResourceSetId of the second SRS resource set, the target maximum number of layers is equal to the second maximum number of layers.

[0577] As an example, the first reference maximum layer number is equal to the minimum of the first maximum layer number and the first resource number, and the second reference maximum layer number is equal to the minimum of the second maximum layer number and the second resource number; when the first reference maximum layer number is greater than the second reference maximum layer number, the target maximum layer number is equal to the first maximum layer number; when the first reference maximum layer number is less than the second reference maximum layer number, the target maximum layer number is equal to the second maximum layer number.

[0578] As a sub-implementation of the above embodiments, when the first maximum reference layer number is equal to the second maximum reference layer number, the target maximum layer number is equal to either the first maximum layer number or the second maximum layer number.

[0579] As a sub-implementation of the above embodiments, when the first maximum reference layer number is equal to the second maximum reference layer number, the target maximum layer number is equal to the larger of the first maximum layer number or the second maximum layer number.

[0580] As a sub-implementation of the above embodiments, when the first maximum reference layer number is equal to the second maximum reference layer number, the target maximum layer number is equal to the maximum layer number of the SRS resource set that is applied to the SRS resource set with the smaller SRS-ResourceSetId in the first SRS resource set and the second SRS resource set, between the first maximum layer number and the second maximum layer number.

[0581] As an example, S3 reference layers are equal to 1, ..., S3, where S3 equals the first maximum layer number; S4 reference layers are equal to 1, ..., S4, where S4 equals the second maximum layer number; the S3 reference layers are used to determine S3 combination numbers, and the S4 reference layers are used to determine S4 combination numbers; any one of the S3 combination numbers is equal to the number of combinations of elements corresponding to the reference layer number taken from the first number of different elements; any one of the S4 combination numbers is equal to the number of combinations of elements corresponding to the reference layer number taken from the second number of different elements; when the sum of the S3 combination numbers is greater than the sum of the S4 combination numbers, the target maximum layer number is equal to the first maximum layer number; when the sum of the S3 combination numbers is less than the sum of the S4 combination numbers, the target maximum layer number is equal to the second maximum layer number.

[0582] As a sub-implementation of the above embodiment, when the sum of the S3 combinations equals the sum of the S4 combinations, the target maximum number of layers equals either the first maximum number of layers or the second maximum number of layers.

[0583] As a sub-example of the above embodiment, when the sum of the S3 combinations equals the sum of the S4 combinations, the target maximum number of layers equals the larger of the first maximum number of layers or the second maximum number of layers.

[0584] As a sub-example of the above embodiment, when the sum of the S3 combination numbers is equal to the sum of the S4 combination numbers, the target maximum number of layers is equal to the maximum number of layers applied to the SRS resource set with the smaller SRS-ResourceSetId in the first SRS resource set and the second SRS resource set, between the first maximum number of layers and the second maximum number of layers.

[0585] As an example, the target resource number in Example 13 is related to the first resource number, the second S resource number, the first maximum layer number, the second maximum layer number, the first resource number, and the second resource number.

[0586] As an example, when the target maximum number of layers is equal to the first maximum number of layers, the target number of resources in Example 13 is the first number of resources; when the target maximum number of layers is equal to the second maximum number of layers, the target number of resources in Example 13 is equal to the second number of resources.

[0587] Example 20

[0588] Example 20 illustrates a structural block diagram of a processing apparatus in a first node device according to an embodiment of this application; as shown in the appendix. Figure 20 As shown. In the appendix Figure 20 In the first node device, the processing unit 2000 includes a first receiver 2001 and a first transmitter 2002.

[0589] In embodiment 20, the first receiver 2001 receives the first signaling, which indicates the scheduling information of the first signal; the first transmitter 2002 transmits the first signal.

[0590] In embodiment 20, the first signal includes a first sub-signal and a second sub-signal; the first signaling includes a first field and a second field; the first field and the second field in the first signaling are respectively used to determine the antenna port for transmitting the first sub-signal and the antenna port for transmitting the second sub-signal, or the first field and the second field in the first signaling are respectively used to determine the precoder for the first sub-signal and the precoder for the second sub-signal; the first field and the second field each include at least one bit, and the load of the bits included in the second field in the first signaling is related to K1 candidate integers, where K1 is a positive integer greater than 1; the K1 candidate integers and K1 Each layer corresponds one-to-one; the relationship between the load of the bits included in the second field of the first signaling and the K1 candidate integers is related to whether the time domain resources occupied by the first sub-signal and the second sub-signal overlap; when the time domain resources occupied by the first sub-signal and the second sub-signal overlap, the load of the bits included in the second field of the first signaling is not less than the base-2 logarithm of the sum of the K1 candidate integers; when the time domain resources occupied by the first sub-signal and the second sub-signal are orthogonal to each other, the load of the bits included in the second field of the first signaling is not less than the base-2 logarithm of the maximum value among the K1 candidate integers.

[0591] As an example, the K1 layers correspond one-to-one with the K1 tables; any of the K1 tables includes multiple rows, and at least one row in any of the K1 tables indicates a TPMI; any of the K1 candidate integers is not less than the number of rows in the corresponding table.

[0592] As an example, the K1 layers and K1 combinations are in one-to-one correspondence, and the K1 combinations are all positive integers; any candidate integer among the K1 candidate integers is not less than the corresponding combination number.

[0593] As an example, the bit payload of the first field in the first signaling is related to K2 candidate integers, where K2 is a positive integer greater than 1; the K2 candidate integers correspond one-to-one with the K2 layer numbers; the bit payload of the first field in the first signaling is not less than the base-2 logarithm of the sum of the K2 candidate integers.

[0594] As an example, K1 is associated with at least one of a first maximum number of layers, a second maximum number of layers, and a third maximum number of layers; the first maximum number of layers, the second maximum number of layers, and the third maximum number of layers are all positive integers greater than 1; and at least one of the first maximum number of layers, the second maximum number of layers, and the third maximum number of layers is configurable.

[0595] As an example, the value of K1 is related to whether the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal overlap.

[0596] As an example, K2 is associated with at least one of a first maximum number of layers, a second maximum number of layers, and a third maximum number of layers; the first maximum number of layers, the second maximum number of layers, and the third maximum number of layers are all positive integers greater than 1; and at least one of the first maximum number of layers, the second maximum number of layers, and the third maximum number of layers is configurable.

[0597] As one example, the first node device is a user equipment.

[0598] As an example, the first node device is a relay node device.

[0599] As an example, the first signaling is a DCI; the first field and the second field respectively indicate at least one SRI, or the first field and the second field respectively indicate a TPMI; the first field is located before the second field in the first signaling; the K1 candidate integers are K1 positive integers; the K1 layer numbers are K1 positive integers.

[0600] As an example, when the time-domain resources occupied by the first sub-signal overlap with those occupied by the second sub-signal, the first sub-signal and the second sub-signal carry different time-domain resources (TBs); when the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal are orthogonal to each other, the first sub-signal and the second sub-signal carry the same time-domain resources (TBs).

[0601] As an example, when the time-domain resources occupied by the first sub-signal overlap with those occupied by the second sub-signal, the number of layers of the first sub-signal and the number of layers of the second sub-signal are indicated separately; when the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal are orthogonal to each other, the number of layers of the first sub-signal is equal to the number of layers of the second sub-signal.

[0602] As an example, the first receiver 2001 includes at least one of the following in embodiment 4: {antenna 452, receiver 454, receiver processor 456, multi-antenna receiver processor 458, controller / processor 459, memory 460, data source 467}.

[0603] As one embodiment, the first transmitter 2002 includes at least one of the following in embodiment 4: {antenna 452, transmitter 454, transmission processor 468, multi-antenna transmission processor 457, controller / processor 459, memory 460, data source 467}.

[0604] Example 21

[0605] Example 21 illustrates a structural block diagram of a processing apparatus in a second node device according to an embodiment of this application; as shown in the appendix. Figure 21 As shown. In the appendix Figure 21 In the second node device, the processing unit 2100 includes a second transmitter 2101 and a second receiver 2102.

[0606] In embodiment 21, the second transmitter 2101 sends a first signaling, which indicates the scheduling information of the first signal; the second receiver 2102 receives the first signal.

[0607] In embodiment 21, the first signal includes a first sub-signal and a second sub-signal; the first signaling includes a first field and a second field; the first field and the second field in the first signaling are respectively used to determine the antenna port for transmitting the first sub-signal and the antenna port for transmitting the second sub-signal, or the first field and the second field in the first signaling are respectively used to determine the precoder for the first sub-signal and the precoder for the second sub-signal; the first field and the second field each include at least one bit, and the load of the bits included in the second field in the first signaling is related to K1 candidate integers, where K1 is a positive integer greater than 1; the K1 candidate integers and K1 Each layer corresponds one-to-one; the relationship between the load of the bits included in the second field of the first signaling and the K1 candidate integers is related to whether the time domain resources occupied by the first sub-signal and the second sub-signal overlap; when the time domain resources occupied by the first sub-signal and the second sub-signal overlap, the load of the bits included in the second field of the first signaling is not less than the base-2 logarithm of the sum of the K1 candidate integers; when the time domain resources occupied by the first sub-signal and the second sub-signal are orthogonal to each other, the load of the bits included in the second field of the first signaling is not less than the base-2 logarithm of the maximum value among the K1 candidate integers.

[0608] As an example, the K1 layers correspond one-to-one with the K1 tables; any of the K1 tables includes multiple rows, and at least one row in any of the K1 tables indicates a TPMI; any of the K1 candidate integers is not less than the number of rows in the corresponding table.

[0609] As an example, the K1 layers and K1 combinations are in one-to-one correspondence, and the K1 combinations are all positive integers; any candidate integer among the K1 candidate integers is not less than the corresponding combination number.

[0610] As an example, the bit payload of the first field in the first signaling is related to K2 candidate integers, where K2 is a positive integer greater than 1; the K2 candidate integers correspond one-to-one with the K2 layer numbers; the bit payload of the first field in the first signaling is not less than the base-2 logarithm of the sum of the K2 candidate integers.

[0611] As an example, K1 is associated with at least one of a first maximum number of layers, a second maximum number of layers, and a third maximum number of layers; the first maximum number of layers, the second maximum number of layers, and the third maximum number of layers are all positive integers greater than 1; and at least one of the first maximum number of layers, the second maximum number of layers, and the third maximum number of layers is configurable.

[0612] As an example, the value of K1 is related to whether the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal overlap.

[0613] As an example, K2 is associated with at least one of a first maximum number of layers, a second maximum number of layers, and a third maximum number of layers; the first maximum number of layers, the second maximum number of layers, and the third maximum number of layers are all positive integers greater than 1; and at least one of the first maximum number of layers, the second maximum number of layers, and the third maximum number of layers is configurable.

[0614] As one example, the second node device is a base station device.

[0615] As one embodiment, the second node device is a user equipment.

[0616] As one embodiment, the second node device is a relay node device.

[0617] As an example, the first signaling is a DCI; the first field and the second field respectively indicate at least one SRI, or the first field and the second field respectively indicate a TPMI; the first field is located before the second field in the first signaling; the K1 candidate integers are K1 positive integers; the K1 layer numbers are K1 positive integers.

[0618] As an example, when the time-domain resources occupied by the first sub-signal overlap with those occupied by the second sub-signal, the first sub-signal and the second sub-signal carry different time-domain resources (TBs); when the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal are orthogonal to each other, the first sub-signal and the second sub-signal carry the same time-domain resources (TBs).

[0619] As an example, when the time-domain resources occupied by the first sub-signal overlap with those occupied by the second sub-signal, the number of layers of the first sub-signal and the number of layers of the second sub-signal are indicated separately; when the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal are orthogonal to each other, the number of layers of the first sub-signal is equal to the number of layers of the second sub-signal.

[0620] As one embodiment, the second transmitter 2101 includes at least one of the following in embodiment 4: {antenna 420, transmitter 418, transmission processor 416, multi-antenna transmission processor 471, controller / processor 475, memory 476}.

[0621] As one embodiment, the second receiver 2102 includes at least one of the following in embodiment 4: {antenna 420, receiver 418, receiver processor 470, multi-antenna receiver processor 472, controller / processor 475, memory 476}.

[0622] Those skilled in the art will understand that all or part of the steps in the above methods can be implemented by a program instructing related hardware, and the program can be stored in a computer-readable storage medium, such as a read-only memory, hard disk, or optical disk. Optionally, all or part of the steps in the above embodiments can also be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiments can be implemented in hardware or in the form of software functional modules. This 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, tablets, laptops, vehicle-mounted communication devices, vehicles, RSUs, wireless sensors, internet access cards, IoT terminals, RFID terminals, NB-IoT terminals, MTC (Machine Type Communication) terminals, eMTC (enhanced MTC) terminals, data cards, internet access cards, vehicle-mounted communication devices, low-cost mobile phones, low-cost tablets, and other wireless communication devices. The base stations or system equipment in this application include, but are not limited to, macrocell base stations, microcell base stations, small cell base stations, home base stations, relay base stations, eNBs, gNBs, TRPs (Transmitter Receiver Points), GNSS, relay satellites, satellite base stations, airborne base stations, RSUs (Road Side Units), drones, and testing equipment, such as transceivers or signaling testers that simulate some functions of a base station, and other wireless communication equipment.

[0623] Those skilled in the art will understand that the present invention can be practiced in other specified forms without departing from its core or essential characteristics. Therefore, the embodiments disclosed herein should in any way be considered descriptive rather than restrictive. The scope of the invention is defined by the appended claims rather than the foregoing description, and all modifications within their equivalent meaning and scope are considered to be included therein.

Claims

1. A first node device for wireless communication, the first node device comprising: Comprising: a first receiver, receiving a first signaling, the first signaling being a DCI, the first signaling indicating scheduling information of a first signal; a first transmitter, transmitting the first signal, the first signal being transmitted in a PUSCH; wherein the first signal comprises a first sub-signal and a second sub-signal; the first signaling comprises a first field and a second field; the first field in the first signaling and the second field in the first signaling are respectively used to determine an antenna port for transmitting the first sub-signal and an antenna port for transmitting the second sub-signal, or, the first field in the first signaling and the second field in the first signaling are respectively used to determine a precoder for the first sub-signal and a precoder for the second sub-signal; at least one of the first field in the first signaling and the second field in the first signaling further indicates a number of layers for the first sub-signal and a number of layers for the second sub-signal; the first field and the second field respectively comprise at least one bit, a load of bits in the second field in the first signaling is related to K1 candidate integers, K1 being a positive integer greater than 1; the K1 candidate integers and the K1 numbers of layers one-to-one correspond; the K1 numbers of layers respectively equal to 1, 2, …, K1; the K1 numbers of layers are respectively used to determine the K1 candidate integers; the relationship between the load of bits in the second field in the first signaling and the K1 candidate integers is related to whether time domain resources occupied by the first sub-signal and time domain resources occupied by the second sub-signal overlap; the load of bits in the second field refers to: the number of bits in the second field; when the time domain resources occupied by the first sub-signal and the time domain resources occupied by the second sub-signal overlap, the load of bits in the second field in the first signaling is not less than the logarithm to the base 2 of the sum of the K1 candidate integers; when the time domain resources occupied by the first sub-signal and the time domain resources occupied by the second sub-signal are mutually orthogonal, the load of bits in the second field in the first signaling is not less than the logarithm to the base 2 of the maximum value in the K1 candidate integers.

2. The first node device of claim 1, wherein, The position of the first field in the first signaling is before the second field in the first signaling, the first field indicating at least one SRI, the second field indicating at least one SRI; when the time domain resources occupied by the first sub-signal and the time domain resources occupied by the second sub-signal overlap means that when the time-frequency resources occupied by the first sub-signal and the time-frequency resources occupied by the second sub-signal overlap.

3. The first node device of claim 1 or 2, wherein, When the time-domain resources occupied by the first sub-signal overlap with those occupied by the second sub-signal, the first field in the first signaling indicates the layer number of the first sub-signal, and the second field in the first signaling indicates the layer number of the second sub-signal; when the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal are orthogonal to each other, the first field in the first signaling indicates the first layer number, and the layer number of the first sub-signal and the layer number of the second sub-signal are both equal to the first layer number.

4. The first node device of claim 1, wherein, When the time-domain resources occupied by the first sub-signal and the second sub-signal overlap, the first sub-signal and the second sub-signal respectively include different layers of the first signal; when the time-domain resources occupied by the first sub-signal and the time-domain resources occupied by the second sub-signal are orthogonal to each other, the first sub-signal and the second sub-signal include two repeated transmissions of the same TB.

5. The first node device of claim 1, wherein, When the time-domain resources occupied by the first sub-signal overlap with those occupied by the second sub-signal, the base-2 logarithm of the sum of the K1 candidate integers is used to determine the load of the bits included in the second field of the first signaling; when the time-domain resources occupied by the first sub-signal and those occupied by the second sub-signal are orthogonal to each other, the base-2 logarithm of the maximum value among the K1 candidate integers is used to determine the load of the bits included in the second field of the first signaling. Alternatively, when the time-domain resources occupied by the first sub-signal overlap with those occupied by the second sub-signal, the load of the bits included in the second field of the first signaling is equal to the base-2 logarithm of the sum of the K1 candidate integers, rounded up; when the time-domain resources occupied by the first sub-signal and those occupied by the second sub-signal are orthogonal to each other, the load of the bits included in the second field of the first signaling is equal to the base-2 logarithm of the maximum value among the K1 candidate integers, rounded up.

6. The first node device of claim 1, wherein, The first signaling indicates a first SRS resource group and a second SRS resource group, wherein the first SRS resource group and the second SRS resource group each include at least one SRS resource; the first SRS resource group includes at least one SRS resource in the first SRS resource set, and the second SRS resource group includes at least one SRS resource in the second SRS resource set; the first SRS resource set and the second SRS resource set each include at least one SRS resource; any SRS resource in the first SRS resource set includes at least one SRS port, and any SRS resource in the second SRS resource set includes at least one SRS port; the first sub-signal is transmitted via an antenna port that is the same as the SRS port in the first SRS resource group, and the second sub-signal is transmitted via an antenna port that is the same as the SRS port in the second SRS resource group. The first SRS resource set includes a number of SRS resources equal to the first resource number, and the second SRS resource set includes a number of SRS resources equal to the second resource number.

7. The first node device of claim 6, wherein, The first SRS resource set and the second SRS resource set are respectively configured by a second higher-layer parameter, the name of the second higher-layer parameter includes "srs-ResourceSetToAddModList", the second higher-layer parameter configures two SRS resource sets, and the higher-layer parameters "usage" associated with the two SRS resource sets are both set to "codebook" or both set to "nonCodebook"; the first SRS resource set is an SRS resource set corresponding to a smaller SRS-ResourceSetId in the two SRS resource sets, and the second SRS resource set is an SRS resource set corresponding to a larger SRS-ResourceSetId in the two SRS resource sets.

8. The first node device of claim 6, wherein, The first field in the first signaling and the second field in the first signaling are respectively used to determine antenna ports for transmitting the first sub-signal and antenna ports for transmitting the second sub-signal, the first field in the first signaling indicates the first SRS resource group, and the second field in the first signaling indicates the second SRS resource group. The first SRS resource group includes L1 SRS resources, the second SRS resource group includes L2 SRS resources, L1 and L2 are respectively positive integers; the first sub-signal includes L1 layers, and the second sub-signal includes L2 layers; the L1 layers are respectively transmitted by the same antenna ports as SRS ports of the L1 SRS resources, and the L2 layers are respectively transmitted by the same antenna ports as SRS ports of the L2 SRS resources.

9. The first node device of claim 1, wherein, The K1 number of layers and the K1 tables correspond one-to-one; any table in the K1 tables includes a plurality of rows, and at least one row in any table in the K1 tables indicates one TPMI; any candidate integer in the K1 candidate integers is not less than the number of rows included in the corresponding table.

10. The first node device of claim 1, wherein, The K1 number of layers and the K1 combination numbers correspond one-to-one, the K1 number of layers are respectively used to determine the K1 combination numbers, and the K1 combination numbers are respectively positive integers; the K1 candidate integers are respectively equal to the K1 combination numbers.

11. The first node device of claim 10, wherein, The first signaling indicates a first SRS resource group and a second SRS resource group, each including at least one SRS resource; the first SRS resource group includes at least one SRS resource in the first SRS resource set, and the second SRS resource group includes at least one SRS resource in the second SRS resource set; the first SRS resource set and the second SRS resource set each include at least one SRS resource; any SRS resource in the first SRS resource set includes at least one SRS port, and any SRS resource in the second SRS resource set includes at least one SRS port; the first sub-signal is transmitted via an antenna port identical to the SRS port in the first SRS resource group, and the second sub-signal is transmitted via an antenna port identical to the SRS port in the second SRS resource group; the number of SRS resources included in the first SRS resource set is equal to the first resource number, and the number of SRS resources included in the second SRS resource set is equal to the second resource number; the first combination number is any combination number among the K1 combination numbers, and the first given layer number is the layer number among the K1 layer numbers corresponding to the first combination number; the first combination number is represented as... or p1 is equal to the second resource number, and q1 is equal to the first given layer number.

12. The first node device of claim 1, wherein, The load of bits included in the first field in the first signaling is related to K2 candidate integers, K2 is a positive integer greater than 1; the K2 candidate integers and the K2 number of layers correspond one-to-one; the load of bits included in the first field in the first signaling is equal to the logarithm to the base 2 of the sum of the K2 candidate integers rounded up; the load of bits included in the first field refers to the number of bits included in the first field.

13. The first node device of claim 12, wherein, The first signaling indicates a first SRS resource group and a second SRS resource group, wherein the first SRS resource group and the second SRS resource group each include at least one SRS resource; the first SRS resource group includes at least one SRS resource in the first SRS resource set, and the second SRS resource group includes at least one SRS resource in the second SRS resource set; the first SRS resource set and the second SRS resource set each include at least one SRS resource; any SRS resource in the first SRS resource set includes at least one SRS port, and any SRS resource in the second SRS resource set includes at least one SRS port; the first sub-signal is combined with the first SRS... The second sub-signal is transmitted via an antenna port that shares the same SRS port as the SRS port in the second SRS resource group; the number of SRS resources included in the first SRS resource set is equal to the first resource number, and the number of SRS resources included in the second SRS resource set is equal to the second resource number; the K2 layers and K2 combinations are in one-to-one correspondence, and the K2 layers are used to determine the K2 combinations, with the K2 candidate integers each equal to the K2 combinations; the second combination is any combination among the K2 combinations, and the second given layer is the layer among the K2 layers that corresponds to the second combination; the second combination is represented as... or p2 is equal to the first number of resources, and q2 is equal to the second given number of layers.

14. The first node device of claim 1, wherein, The K1 is related to at least one of the first maximum layer number, the second maximum layer number and the third maximum layer number; the first maximum layer number, the second maximum layer number and the third maximum layer number are positive integers greater than 1 respectively; at least one of the first maximum layer number, the second maximum layer number and the third maximum layer number is configurable.

15. The first node device of claim 14, wherein, The K1 is related to the first maximum layer number and the K1 is related to the second maximum layer number; the first maximum layer number and the second maximum layer number are configured respectively.

16. The first node device of claim 14, wherein, The first signaling indicates a first SRS resource group and a second SRS resource group, the first SRS resource group and the second SRS resource group include at least one SRS resource respectively; the first SRS resource group includes at least one SRS resource in a first SRS resource set, and the second SRS resource group includes at least one SRS resource in a second SRS resource set; the first SRS resource set and the second SRS resource set include at least one SRS resource respectively; any SRS resource in the first SRS resource set includes at least one SRS port, and any SRS resource in the second SRS resource set includes at least one SRS port; the first sub-signal is transmitted by the same antenna port as the SRS port in the first SRS resource group, and the second sub-signal is transmitted by the same antenna port as the SRS port in the second SRS resource group. The number of SRS resources included in the first SRS resource set is equal to the first resource number, and the number of SRS resources included in the second SRS resource set is equal to the second resource number. The K1 is equal to the minimum value of the first maximum layer number and the second resource number, or the K1 is equal to the minimum value of the second maximum layer number and the second resource number.

17. The first node device of claim 1, wherein, The value of the K1 is related to whether the time domain resource occupied by the first sub-signal and the time domain resource occupied by the second sub-signal overlap.

18. The first node device of claim 12, wherein, The K2 is related to at least one of the first maximum layer number, the second maximum layer number and the third maximum layer number; the first maximum layer number, the second maximum layer number and the third maximum layer number are positive integers greater than 1 respectively; at least one of the first maximum layer number, the second maximum layer number and the third maximum layer number is configurable.

19. The first node device of claim 1, wherein, The first receiver receives a second information block; wherein the second information block includes all or part of the information in an IE, and whether the time domain resource occupied by the first sub-signal and the time domain resource occupied by the second sub-signal overlap is related to the second information block.

20. A second node device configured for wireless communication, the second node device comprising: Comprise: The second transmitter transmits first signaling, the first signaling is a DCI, and the first signaling indicates scheduling information of a first signal; The second receiver receives the first signal, and the first signal is transmitted in a PUSCH. The first signal includes a first sub-signal and a second sub-signal; the first signaling includes a first field and a second field; the first field in the first signaling and the second field in the first signaling are respectively used to determine an antenna port for sending the first sub-signal and an antenna port for sending the second sub-signal, or the first field in the first signaling and the second field in the first signaling are respectively used to determine a precoder for the first sub-signal and a precoder for the second sub-signal; at least one of the first field in the first signaling and the second field in the first signaling also indicates a number of layers of the first sub-signal and a number of layers of the second sub-signal; the first field and the second field respectively include at least one bit, a load of the bits in the second field in the first signaling is related to K1 candidate integers, K1 is a positive integer greater than 1; the K1 candidate integers and the K1 numbers of layers are one-to-one corresponding; the K1 numbers of layers are respectively equal to 1, 2, …, K1; the K1 numbers of layers are respectively used to determine the K1 candidate integers; the relationship between the load of the bits in the second field in the first signaling and the K1 candidate integers is related to whether time domain resources occupied by the first sub-signal and time domain resources occupied by the second sub-signal overlap; the load of the bits in the second field is the number of bits in the second field; when the time domain resources occupied by the first sub-signal and the time domain resources occupied by the second sub-signal overlap, the load of the bits in the second field in the first signaling is not less than a logarithm with base 2 of a sum of the K1 candidate integers; when the time domain resources occupied by the first sub-signal and the time domain resources occupied by the second sub-signal are mutually orthogonal, the load of the bits in the second field in the first signaling is not less than a logarithm with base 2 of a maximum value in the K1 candidate integers.

21. The second node device of claim 20, wherein, The position of the first field in the first signaling is before the second field in the first signaling, the first field indicates at least one SRI, and the second field indicates at least one SRI; when the time domain resources occupied by the first sub-signal and the time domain resources occupied by the second sub-signal overlap, it means that when time-frequency resources occupied by the first sub-signal and time-frequency resources occupied by the second sub-signal overlap.

22. The second node device of claim 20 or 21, wherein, When the time domain resources occupied by the first sub-signal and the time domain resources occupied by the second sub-signal overlap, the first field in the first signaling indicates a number of layers of the first sub-signal, and the second field in the first signaling indicates a number of layers of the second sub-signal; when the time domain resources occupied by the first sub-signal and the time domain resources occupied by the second sub-signal are mutually orthogonal, the first field in the first signaling indicates a first number of layers, and the number of layers of the first sub-signal and the number of layers of the second sub-signal are both equal to the first number of layers.

23. The second node device of claim 20, wherein, When the time domain resource occupied by the first sub-signal and the time domain resource occupied by the second sub-signal overlap, the first sub-signal and the second sub-signal respectively include different layers of the first signal; when the time domain resource occupied by the first sub-signal and the time domain resource occupied by the second sub-signal are orthogonal to each other, the first sub-signal and the second sub-signal include twice repeated transmissions of the same TB.

24. The second node device of claim 20, wherein, When the time domain resource occupied by the first sub-signal and the time domain resource occupied by the second sub-signal overlap, the logarithm with base 2 of the sum of the K1 candidate integers is used to determine the load of the bits included in the second field in the first signaling; when the time domain resource occupied by the first sub-signal and the time domain resource occupied by the second sub-signal are orthogonal to each other, the logarithm with base 2 of the maximum value in the K1 candidate integers is used to determine the load of the bits included in the second field in the first signaling. Alternatively, when the time domain resource occupied by the first sub-signal and the time domain resource occupied by the second sub-signal overlap, the load of the bits included in the second field in the first signaling is equal to the logarithm with base 2 of the sum of the K1 candidate integers rounded up; when the time domain resource occupied by the first sub-signal and the time domain resource occupied by the second sub-signal are orthogonal to each other, the load of the bits included in the second field in the first signaling is equal to the logarithm with base 2 of the maximum value in the K1 candidate integers rounded up.

25. The second node device of claim 20, wherein, The first signaling indicates a first SRS resource group and a second SRS resource group, and the first SRS resource group and the second SRS resource group respectively include at least one SRS resource; the first SRS resource group includes at least one SRS resource in a first SRS resource set, and the second SRS resource group includes at least one SRS resource in a second SRS resource set; the first SRS resource set and the second SRS resource set respectively include at least one SRS resource; any SRS resource in the first SRS resource set includes at least one SRS port, and any SRS resource in the second SRS resource set includes at least one SRS port; the first sub-signal is transmitted by the same antenna port as the SRS port in the first SRS resource group, and the second sub-signal is transmitted by the same antenna port as the SRS port in the second SRS resource group; The number of SRS resources included in the first SRS resource set is equal to a first resource number, and the number of SRS resources included in the second SRS resource set is equal to a second resource number.

26. The second node device of claim 25, wherein, The first SRS resource set and the second SRS resource set are respectively configured by a second higher layer parameter, the name of the second higher layer parameter includes "srs-ResourceSetToAddModList", the second higher layer parameter configures two SRS resource sets, and higher layer parameters "usage" associated with the two SRS resource sets are both set as "codebook" or both set as "nonCodebook"; the first SRS resource set is an SRS resource set corresponding to a smaller SRS-ResourceSetId in the two SRS resource sets, and the second SRS resource set is an SRS resource set corresponding to a larger SRS-ResourceSetId in the two SRS resource sets.

27. The second node device of claim 25, wherein, The first field in the first signaling and the second field in the first signaling are respectively used to determine an antenna port for transmitting the first sub-signal and an antenna port for transmitting the second sub-signal, the first field in the first signaling indicates the first SRS resource group, and the second field in the first signaling indicates the second SRS resource group. The first SRS resource group includes L1 SRS resources, the second SRS resource group includes L2 SRS resources, L1 and L2 are respectively positive integers; the first sub-signal includes L1 layers, and the second sub-signal includes L2 layers; the L1 layers are respectively transmitted by the same antenna port as the SRS port of the L1 SRS resources, and the L2 layers are respectively transmitted by the same antenna port as the SRS port of the L2 SRS resources.

28. The second node device of claim 20, wherein, The K1 number of layers and the K1 tables are one-to-one corresponding; any table in the K1 tables includes a plurality of rows, and at least one row in any table in the K1 tables indicates one TPMI; any candidate integer in the K1 candidate integers is not less than the number of rows included in the corresponding table.

29. The second node device of claim 20, wherein, The K1 number of layers and the K1 combination numbers are one-to-one corresponding, the K1 number of layers are respectively used to determine the K1 combination numbers, and the K1 combination numbers are respectively positive integers; the K1 candidate integers are respectively equal to the K1 combination numbers.

30. The second node device of claim 29, wherein, The first signaling indicates a first SRS resource group and a second SRS resource group, each including at least one SRS resource; the first SRS resource group includes at least one SRS resource in the first SRS resource set, and the second SRS resource group includes at least one SRS resource in the second SRS resource set; the first SRS resource set and the second SRS resource set each include at least one SRS resource; any SRS resource in the first SRS resource set includes at least one SRS port, and any SRS resource in the second SRS resource set includes at least one SRS port; the first sub-signal is transmitted via an antenna port identical to the SRS port in the first SRS resource group, and the second sub-signal is transmitted via an antenna port identical to the SRS port in the second SRS resource group; the number of SRS resources included in the first SRS resource set is equal to the first resource number, and the number of SRS resources included in the second SRS resource set is equal to the second resource number; the first combination number is any combination number among the K1 combination numbers, and the first given layer number is the layer number among the K1 layer numbers corresponding to the first combination number; the first combination number is represented as... or p1 is equal to the second resource number, and q1 is equal to the first given layer number.

31. The second node device of claim 20, wherein, The load of bits included in the first field in the first signaling is related to K2 candidate integers, K2 is a positive integer greater than 1; the K2 candidate integers and K2 number of layers are one-to-one corresponding; the load of bits included in the first field in the first signaling is equal to the logarithm to the base 2 of the sum of the K2 candidate integers rounded up; the load of bits included in the first field refers to the number of bits included in the first field.

32. The second node device of claim 31, wherein, The first signaling indicates a first SRS resource group and a second SRS resource group, wherein the first SRS resource group and the second SRS resource group each include at least one SRS resource; the first SRS resource group includes at least one SRS resource in the first SRS resource set, and the second SRS resource group includes at least one SRS resource in the second SRS resource set; the first SRS resource set and the second SRS resource set each include at least one SRS resource; any SRS resource in the first SRS resource set includes at least one SRS port, and any SRS resource in the second SRS resource set includes at least one SRS port; the first sub-signal is combined with the first SRS... The second sub-signal is transmitted via an antenna port that shares the same SRS port as the SRS port in the second SRS resource group; the number of SRS resources included in the first SRS resource set is equal to the first resource number, and the number of SRS resources included in the second SRS resource set is equal to the second resource number; the K2 layers and K2 combinations are in one-to-one correspondence, and the K2 layers are used to determine the K2 combinations, with the K2 candidate integers each equal to the K2 combinations; the second combination is any combination among the K2 combinations, and the second given layer is the layer among the K2 layers that corresponds to the second combination; the second combination is represented as... or p2 is equal to the first number of resources, and q2 is equal to the second given number of layers.

33. The second node device of claim 20, wherein, The K1 is related to at least one of a first maximum number of layers, a second maximum number of layers and a third maximum number of layers; the first maximum number of layers, the second maximum number of layers and the third maximum number of layers are respectively positive integers greater than 1; and at least one of the first maximum number of layers, the second maximum number of layers and the third maximum number of layers is configurable.

34. The second node device of claim 33, wherein, The K1 is related to the first maximum number of layers, and the K1 is related to the second maximum number of layers; the first maximum number of layers and the second maximum number of layers are respectively configured.

35. The second node device of claim 33, wherein, The first signaling indicates a first SRS resource group and a second SRS resource group, the first SRS resource group and the second SRS resource group respectively include at least one SRS resource; the first SRS resource group includes at least one SRS resource in a first SRS resource set, and the second SRS resource group includes at least one SRS resource in a second SRS resource set; the first SRS resource set and the second SRS resource set respectively include at least one SRS resource; any SRS resource in the first SRS resource set includes at least one SRS port, and any SRS resource in the second SRS resource set includes at least one SRS port; the first sub-signal is transmitted by the same antenna port as the SRS port in the first SRS resource group, and the second sub-signal is transmitted by the same antenna port as the SRS port in the second SRS resource group; The number of SRS resources included in the first SRS resource set is equal to the first resource number, and the number of SRS resources included in the second SRS resource set is equal to the second resource number. The K1 is equal to the minimum value of the first maximum number of layers and the second resource number, or the K1 is equal to the minimum value of the second maximum number of layers and the second resource number.

36. The second node device of claim 20, wherein, The value of the K1 is related to whether the time domain resources occupied by the first sub-signal and the time domain resources occupied by the second sub-signal overlap.

37. The second node device of claim 31, wherein, The K2 is related to at least one of a first maximum number of layers, a second maximum number of layers and a third maximum number of layers; the first maximum number of layers, the second maximum number of layers and the third maximum number of layers are respectively positive integers greater than 1; at least one of the first maximum number of layers, the second maximum number of layers and the third maximum number of layers is configurable.

38. The second node device of claim 20, wherein, The second transmitter transmits a second information block; wherein the second information block includes all or part of the information in an IE, and whether the time domain resources occupied by the first sub-signal and the time domain resources occupied by the second sub-signal overlap is related to the second information block.

39. A method in a first node used for wireless communication, characterized by, Comprising: Receiving first signaling, the first signaling is a DCI, and the first signaling indicates scheduling information of a first signal; Transmit the first signal, the first signal is transmitted in a PUSCH; The first signal includes a first sub-signal and a second sub-signal; the first signaling includes a first field and a second field; the first field in the first signaling and the second field in the first signaling are respectively used to determine an antenna port for sending the first sub-signal and an antenna port for sending the second sub-signal, or the first field in the first signaling and the second field in the first signaling are respectively used to determine a precoder for the first sub-signal and a precoder for the second sub-signal; at least one of the first field in the first signaling and the second field in the first signaling also indicates a number of layers of the first sub-signal and a number of layers of the second sub-signal; the first field and the second field respectively include at least one bit, a load of the bits in the second field in the first signaling is related to K1 candidate integers, K1 is a positive integer greater than 1; the K1 candidate integers and the K1 numbers of layers are one-to-one corresponding; the K1 numbers of layers are respectively equal to 1, 2, …, K1; the K1 numbers of layers are respectively used to determine the K1 candidate integers; the relationship between the load of the bits in the second field in the first signaling and the K1 candidate integers is related to whether time domain resources occupied by the first sub-signal and time domain resources occupied by the second sub-signal overlap; the load of the bits in the second field is the number of bits in the second field; when the time domain resources occupied by the first sub-signal and the time domain resources occupied by the second sub-signal overlap, the load of the bits in the second field in the first signaling is not less than a logarithm with base 2 of a sum of the K1 candidate integers; when the time domain resources occupied by the first sub-signal and the time domain resources occupied by the second sub-signal are mutually orthogonal, the load of the bits in the second field in the first signaling is not less than a logarithm with base 2 of a maximum value in the K1 candidate integers.

40. A method in a first node according to claim 39, characterised by, The position of the first field in the first signaling is before the second field in the first signaling, the first field indicates at least one SRI, and the second field indicates at least one SRI; when the time domain resources occupied by the first sub-signal and the time domain resources occupied by the second sub-signal overlap, it means that when time-frequency resources occupied by the first sub-signal and time-frequency resources occupied by the second sub-signal overlap.

41. A method in a first node according to claim 39, characterised by, When the time domain resources occupied by the first sub-signal and the time domain resources occupied by the second sub-signal overlap, the first field in the first signaling indicates a number of layers of the first sub-signal, and the second field in the first signaling indicates a number of layers of the second sub-signal; when the time domain resources occupied by the first sub-signal and the time domain resources occupied by the second sub-signal are mutually orthogonal, the first field in the first signaling indicates a first number of layers, and the number of layers of the first sub-signal and the number of layers of the second sub-signal are both equal to the first number of layers.

42. A method in a first node according to claim 39, characterised by, When the time domain resource occupied by the first sub-signal and the time domain resource occupied by the second sub-signal overlap, the first sub-signal and the second sub-signal respectively include different layers of the first signal; when the time domain resource occupied by the first sub-signal and the time domain resource occupied by the second sub-signal are orthogonal to each other, the first sub-signal and the second sub-signal include twice repeated transmissions of the same TB.

43. A method in a first node according to claim 39, characterised by, When the time domain resource occupied by the first sub-signal and the time domain resource occupied by the second sub-signal overlap, the logarithm with base 2 of the sum of the K1 candidate integers is used to determine the load of the bits included in the second field in the first signaling; when the time domain resource occupied by the first sub-signal and the time domain resource occupied by the second sub-signal are orthogonal to each other, the logarithm with base 2 of the maximum value in the K1 candidate integers is used to determine the load of the bits included in the second field in the first signaling. Alternatively, when the time domain resource occupied by the first sub-signal and the time domain resource occupied by the second sub-signal overlap, the load of the bits included in the second field in the first signaling is equal to the logarithm with base 2 of the sum of the K1 candidate integers rounded up; when the time domain resource occupied by the first sub-signal and the time domain resource occupied by the second sub-signal are orthogonal to each other, the load of the bits included in the second field in the first signaling is equal to the logarithm with base 2 of the maximum value in the K1 candidate integers rounded up.

44. The method in a first node according to claim 39, characterised by, The first signaling indicates a first SRS resource group and a second SRS resource group, and the first SRS resource group and the second SRS resource group respectively include at least one SRS resource; the first SRS resource group includes at least one SRS resource in a first SRS resource set, and the second SRS resource group includes at least one SRS resource in a second SRS resource set; the first SRS resource set and the second SRS resource set respectively include at least one SRS resource; any SRS resource in the first SRS resource set includes at least one SRS port, and any SRS resource in the second SRS resource set includes at least one SRS port; the first sub-signal is transmitted by the same antenna port as the SRS port in the first SRS resource group, and the second sub-signal is transmitted by the same antenna port as the SRS port in the second SRS resource group; The number of SRS resources included in the first SRS resource set is equal to a first resource number, and the number of SRS resources included in the second SRS resource set is equal to a second resource number.

45. A method in a first node according to claim 44, characterised by, The first SRS resource set and the second SRS resource set are respectively configured by a second higher layer parameter, the name of the second higher layer parameter includes "srs-ResourceSetToAddModList", the second higher layer parameter configures two SRS resource sets, and higher layer parameters "usage" associated with the two SRS resource sets are both set as "codebook" or both set as "nonCodebook"; the first SRS resource set is an SRS resource set corresponding to a smaller SRS-ResourceSetId in the two SRS resource sets, and the second SRS resource set is an SRS resource set corresponding to a larger SRS-ResourceSetId in the two SRS resource sets.

46. A method in a first node according to claim 44, characterised by, The first field in the first signaling and the second field in the first signaling are respectively used to determine an antenna port for transmitting the first sub-signal and an antenna port for transmitting the second sub-signal, the first field in the first signaling indicates the first SRS resource group, and the second field in the first signaling indicates the second SRS resource group. The first SRS resource group includes L1 SRS resources, the second SRS resource group includes L2 SRS resources, L1 and L2 are respectively positive integers; the first sub-signal includes L1 layers, and the second sub-signal includes L2 layers; the L1 layers are respectively transmitted by the same antenna port as the SRS port of the L1 SRS resources, and the L2 layers are respectively transmitted by the same antenna port as the SRS port of the L2 SRS resources.

47. The method in a first node according to claim 40, characterised by, The K1 number of layers and the K1 tables are one-to-one corresponding; any table in the K1 tables includes a plurality of rows, and at least one row in any table in the K1 tables indicates one TPMI; any candidate integer in the K1 candidate integers is not less than the number of rows included in the corresponding table.

48. The method in a first node according to claim 40, characterised by, The K1 number of layers and the K1 combination numbers are one-to-one corresponding, the K1 number of layers are respectively used to determine the K1 combination numbers, and the K1 combination numbers are respectively positive integers; the K1 candidate integers are respectively equal to the K1 combination numbers.

49. A method in a first node according to claim 48, characterised by, The first signaling indicates a first SRS resource group and a second SRS resource group, the first SRS resource group and the second SRS resource group respectively include at least one SRS resource; the first SRS resource group includes at least one SRS resource in a first SRS resource set, and the second SRS resource group includes at least one SRS resource in a second SRS resource set; the first SRS resource set and the second SRS resource set respectively include at least one SRS resource; any SRS resource in the first SRS resource set includes at least one SRS port, and any SRS resource in the second SRS resource set includes at least one SRS port; the first sub-signal is sent by the same antenna port as the SRS port in the first SRS resource group, and the second sub-signal is sent by the same antenna port as the SRS port in the second SRS resource group; the number of SRS resources included in the first SRS resource set is equal to a first resource number, and the number of SRS resources included in the second SRS resource set is equal to a second resource number; a first combination number is any combination number in the K1 combination numbers, and a first given layer number is a layer number corresponding to the first combination number in the K1 layer numbers; the first combination number is represented as or The p1 is equal to the second resource number, and the q1 is equal to the first given layer number.

50. A method in a first node according to claim 39, characterised by, The load of bits included in the first field in the first signaling is related to K2 candidate integers, K2 is a positive integer greater than 1; the K2 candidate integers and K2 number of layers are one-to-one corresponding; the load of bits included in the first field in the first signaling is equal to the logarithm to the base 2 of the sum of the K2 candidate integers rounded up; the load of bits included in the first field refers to the number of bits included in the first field.

51. A method in a first node according to claim 50, characterised by, The first signaling indicates a first SRS resource group and a second SRS resource group, the first SRS resource group and the second SRS resource group respectively include at least one SRS resource; the first SRS resource group includes at least one SRS resource in a first SRS resource set, and the second SRS resource group includes at least one SRS resource in a second SRS resource set; the first SRS resource set and the second SRS resource set respectively include at least one SRS resource; any SRS resource in the first SRS resource set includes at least one SRS port, and any SRS resource in the second SRS resource set includes at least one SRS port; the first sub-signal is sent by the same antenna port as the SRS port in the first SRS resource group, and the second sub-signal is sent by the same antenna port as the SRS port in the second SRS resource group; the number of SRS resources included in the first SRS resource set is equal to the first resource number, and the number of SRS resources included in the second SRS resource set is equal to the second resource number; the K2 layers and the K2 combinations correspond to each other one by one, the K2 layers are respectively used to determine the K2 combinations, and the K2 candidate integers are respectively equal to the K2 combinations; the second combination number is any combination number in the K2 combinations, and the second given layer number is a layer number in the K2 layers corresponding to the second combination number; the second combination number is represented as or The p2 is equal to the first resource number, and the q2 is equal to the second given layer number.

52. A method in a first node according to claim 39, characterised by, The K1 is related to at least one of a first maximum number of layers, a second maximum number of layers and a third maximum number of layers; the first maximum number of layers, the second maximum number of layers and the third maximum number of layers are respectively positive integers greater than 1; and at least one of the first maximum number of layers, the second maximum number of layers and the third maximum number of layers is configurable.

53. A method in a first node according to claim 52, characterised by, The K1 is related to the first maximum number of layers, and the K1 is related to the second maximum number of layers; the first maximum number of layers and the second maximum number of layers are respectively configured.

54. A method in a first node according to claim 52, characterised by, The first signaling indicates a first SRS resource group and a second SRS resource group, the first SRS resource group and the second SRS resource group respectively include at least one SRS resource; the first SRS resource group includes at least one SRS resource in a first SRS resource set, and the second SRS resource group includes at least one SRS resource in a second SRS resource set; the first SRS resource set and the second SRS resource set respectively include at least one SRS resource; any SRS resource in the first SRS resource set includes at least one SRS port, and any SRS resource in the second SRS resource set includes at least one SRS port; the first sub-signal is transmitted by the same antenna port as the SRS port in the first SRS resource group, and the second sub-signal is transmitted by the same antenna port as the SRS port in the second SRS resource group; The number of SRS resources included in the first SRS resource set is equal to the first resource number, and the number of SRS resources included in the second SRS resource set is equal to the second resource number. The K1 is equal to the minimum value of the first maximum number of layers and the second resource number, or the K1 is equal to the minimum value of the second maximum number of layers and the second resource number.

55. The method in a first node according to claim 39, characterised by, The value of the K1 is related to whether the time domain resources occupied by the first sub-signal and the time domain resources occupied by the second sub-signal overlap.

56. The method in a first node according to claim 50, characterised by, The K2 is related to at least one of a first maximum number of layers, a second maximum number of layers and a third maximum number of layers; the first maximum number of layers, the second maximum number of layers and the third maximum number of layers are respectively positive integers greater than 1; at least one of the first maximum number of layers, the second maximum number of layers and the third maximum number of layers is configurable.

57. The method in a first node according to claim 39, characterised by, Comprising: Receiving a second information block; Wherein, the second information block includes all or part of the information in an IE, whether the time domain resources occupied by the first sub-signal and the time domain resources occupied by the second sub-signal overlap and the second information block are related.

58. A method in a second node used for wireless communication, characterized by, Comprising: Transmitting first signaling, the first signaling being a DCI, the first signaling indicating scheduling information of a first signal; Receiving the first signal, the first signal being transmitted in a PUSCH; The first signal includes a first sub-signal and a second sub-signal; the first signaling includes a first field and a second field; the first field in the first signaling and the second field in the first signaling are respectively used to determine an antenna port for sending the first sub-signal and an antenna port for sending the second sub-signal, or the first field in the first signaling and the second field in the first signaling are respectively used to determine a precoder for the first sub-signal and a precoder for the second sub-signal; at least one of the first field in the first signaling and the second field in the first signaling also indicates a number of layers of the first sub-signal and a number of layers of the second sub-signal; the first field and the second field respectively include at least one bit, a load of the bits in the second field in the first signaling is related to K1 candidate integers, K1 is a positive integer greater than 1; the K1 candidate integers and the K1 numbers of layers are one-to-one corresponding; the K1 numbers of layers are respectively equal to 1, 2, …, K1; the K1 numbers of layers are respectively used to determine the K1 candidate integers; the relationship between the load of the bits in the second field in the first signaling and the K1 candidate integers is related to whether time domain resources occupied by the first sub-signal and time domain resources occupied by the second sub-signal overlap; the load of the bits in the second field is the number of bits in the second field; when the time domain resources occupied by the first sub-signal and the time domain resources occupied by the second sub-signal overlap, the load of the bits in the second field in the first signaling is not less than a logarithm with base 2 of a sum of the K1 candidate integers; when the time domain resources occupied by the first sub-signal and the time domain resources occupied by the second sub-signal are mutually orthogonal, the load of the bits in the second field in the first signaling is not less than a logarithm with base 2 of a maximum value in the K1 candidate integers.

59. A method in a second node according to claim 58, characterised by, The position of the first field in the first signaling is before the position of the second field in the first signaling, the first field indicates at least one SRI, and the second field indicates at least one SRI; when the time domain resources occupied by the first sub-signal and the time domain resources occupied by the second sub-signal overlap, it means that when time-frequency resources occupied by the first sub-signal and time-frequency resources occupied by the second sub-signal overlap.

60. A method in a second node according to claim 58, characterised by, When the time domain resources occupied by the first sub-signal and the time domain resources occupied by the second sub-signal overlap, the first field in the first signaling indicates a number of layers of the first sub-signal, and the second field in the first signaling indicates a number of layers of the second sub-signal; when the time domain resources occupied by the first sub-signal and the time domain resources occupied by the second sub-signal are mutually orthogonal, the first field in the first signaling indicates a first number of layers, and the number of layers of the first sub-signal and the number of layers of the second sub-signal are both equal to the first number of layers.

61. A method in a second node according to claim 58, characterised by, When the time domain resource occupied by the first sub-signal and the time domain resource occupied by the second sub-signal overlap, the first sub-signal and the second sub-signal respectively include different layers of the first signal; when the time domain resource occupied by the first sub-signal and the time domain resource occupied by the second sub-signal are orthogonal to each other, the first sub-signal and the second sub-signal include twice repeated transmissions of the same TB.

62. A method in a second node according to claim 58, characterised by, When the time domain resource occupied by the first sub-signal and the time domain resource occupied by the second sub-signal overlap, the logarithm with base 2 of the sum of the K1 candidate integers is used to determine the load of the bits included in the second field in the first signaling; when the time domain resource occupied by the first sub-signal and the time domain resource occupied by the second sub-signal are orthogonal to each other, the logarithm with base 2 of the maximum value in the K1 candidate integers is used to determine the load of the bits included in the second field in the first signaling. Alternatively, when the time domain resource occupied by the first sub-signal and the time domain resource occupied by the second sub-signal overlap, the load of the bits included in the second field in the first signaling is equal to the logarithm with base 2 of the sum of the K1 candidate integers rounded up; when the time domain resource occupied by the first sub-signal and the time domain resource occupied by the second sub-signal are orthogonal to each other, the load of the bits included in the second field in the first signaling is equal to the logarithm with base 2 of the maximum value in the K1 candidate integers rounded up.

63. A method in a second node according to claim 58, characterised by, The first signaling indicates a first SRS resource group and a second SRS resource group, and the first SRS resource group and the second SRS resource group respectively include at least one SRS resource; the first SRS resource group includes at least one SRS resource in a first SRS resource set, and the second SRS resource group includes at least one SRS resource in a second SRS resource set; the first SRS resource set and the second SRS resource set respectively include at least one SRS resource; any SRS resource in the first SRS resource set includes at least one SRS port, and any SRS resource in the second SRS resource set includes at least one SRS port; the first sub-signal is transmitted by the same antenna port as the SRS port in the first SRS resource group, and the second sub-signal is transmitted by the same antenna port as the SRS port in the second SRS resource group; The number of SRS resources included in the first SRS resource set is equal to a first resource number, and the number of SRS resources included in the second SRS resource set is equal to a second resource number.

64. A method in a second node according to claim 63, characterised by, The first SRS resource set and the second SRS resource set are respectively configured by a second higher layer parameter, the name of the second higher layer parameter includes "srs-ResourceSetToAddModList", the second higher layer parameter configures two SRS resource sets, and higher layer parameters "usage" associated with the two SRS resource sets are both set as "codebook" or both set as "nonCodebook"; the first SRS resource set is an SRS resource set corresponding to a smaller SRS-ResourceSetId in the two SRS resource sets, and the second SRS resource set is an SRS resource set corresponding to a larger SRS-ResourceSetId in the two SRS resource sets.

65. A method in a second node according to claim 63, characterised by, The first field in the first signaling and the second field in the first signaling are respectively used to determine an antenna port for transmitting the first sub-signal and an antenna port for transmitting the second sub-signal, the first field in the first signaling indicates the first SRS resource group, and the second field in the first signaling indicates the second SRS resource group. The first SRS resource group includes L1 SRS resources, the second SRS resource group includes L2 SRS resources, L1 and L2 are respectively positive integers; the first sub-signal includes L1 layers, and the second sub-signal includes L2 layers; the L1 layers are respectively transmitted by the same antenna port as the SRS port of the L1 SRS resources, and the L2 layers are respectively transmitted by the same antenna port as the SRS port of the L2 SRS resources.

66. A method in a second node according to claim 58, characterised by, The K1 number of layers and the K1 tables are one-to-one corresponding; any table in the K1 tables includes a plurality of rows, and at least one row in any table in the K1 tables indicates one TPMI; any candidate integer in the K1 candidate integers is not less than the number of rows included in the corresponding table.

67. A method in a second node according to claim 58, characterised by, The K1 number of layers and the K1 combination numbers are one-to-one corresponding, the K1 number of layers are respectively used to determine the K1 combination numbers, and the K1 combination numbers are respectively positive integers; the K1 candidate integers are respectively equal to the K1 combination numbers.

68. A method in a second node according to claim 67, characterised by, The first signaling indicates a first SRS resource group and a second SRS resource group, the first SRS resource group and the second SRS resource group respectively include at least one SRS resource; the first SRS resource group includes at least one SRS resource in a first SRS resource set, and the second SRS resource group includes at least one SRS resource in a second SRS resource set; the first SRS resource set and the second SRS resource set respectively include at least one SRS resource; any SRS resource in the first SRS resource set includes at least one SRS port, and any SRS resource in the second SRS resource set includes at least one SRS port; the first sub-signal is sent by the same antenna port as the SRS port in the first SRS resource group, and the second sub-signal is sent by the same antenna port as the SRS port in the second SRS resource group; the number of SRS resources included in the first SRS resource set is equal to a first resource number, and the number of SRS resources included in the second SRS resource set is equal to a second resource number; a first combination number is any combination number in the K1 combination numbers, and a first given layer number is a layer number corresponding to the first combination number in the K1 layer numbers; the first combination number is represented as or The p1 is equal to the second resource number, and the q1 is equal to the first given layer number.

69. A method in a second node according to claim 58, characterised by, The load of bits included in the first field in the first signaling is related to K2 candidate integers, K2 is a positive integer greater than 1; the K2 candidate integers and K2 number of layers are one-to-one corresponding; the load of bits included in the first field in the first signaling is equal to the logarithm to the base 2 of the sum of the K2 candidate integers rounded up; the load of bits included in the first field refers to the number of bits included in the first field.

70. A method in a second node according to claim 69, characterised by, The first signaling indicates a first SRS resource group and a second SRS resource group, the first SRS resource group and the second SRS resource group respectively include at least one SRS resource; the first SRS resource group includes at least one SRS resource in a first SRS resource set, and the second SRS resource group includes at least one SRS resource in a second SRS resource set; the first SRS resource set and the second SRS resource set respectively include at least one SRS resource; any SRS resource in the first SRS resource set includes at least one SRS port, and any SRS resource in the second SRS resource set includes at least one SRS port; the first sub-signal is sent by the same antenna port as the SRS port in the first SRS resource group, and the second sub-signal is sent by the same antenna port as the SRS port in the second SRS resource group; the number of SRS resources included in the first SRS resource set is equal to the first resource number, and the number of SRS resources included in the second SRS resource set is equal to the second resource number; the K2 layers and the K2 combinations correspond to each other one by one, the K2 layers are respectively used to determine the K2 combinations, and the K2 candidate integers are respectively equal to the K2 combinations; the second combination number is any combination number in the K2 combinations, and the second given layer number is a layer number in the K2 layers corresponding to the second combination number; the second combination number is represented as or The p2 is equal to the first resource number, and the q2 is equal to the second given layer number.

71. A method in a second node according to claim 58, characterised by, The K1 is related to at least one of a first maximum number of layers, a second maximum number of layers and a third maximum number of layers; the first maximum number of layers, the second maximum number of layers and the third maximum number of layers are respectively positive integers greater than 1; and at least one of the first maximum number of layers, the second maximum number of layers and the third maximum number of layers is configurable.

72. A method in a second node according to claim 71, characterised by, The K1 is related to the first maximum number of layers, and the K1 is related to the second maximum number of layers; the first maximum number of layers and the second maximum number of layers are respectively configured.

73. A method in a second node according to claim 71, characterised by, The first signaling indicates a first SRS resource group and a second SRS resource group, the first SRS resource group and the second SRS resource group respectively include at least one SRS resource; the first SRS resource group includes at least one SRS resource in a first SRS resource set, and the second SRS resource group includes at least one SRS resource in a second SRS resource set; the first SRS resource set and the second SRS resource set respectively include at least one SRS resource; any SRS resource in the first SRS resource set includes at least one SRS port, and any SRS resource in the second SRS resource set includes at least one SRS port; the first sub-signal is sent by the same antenna port as the SRS port in the first SRS resource group, and the second sub-signal is sent by the same antenna port as the SRS port in the second SRS resource group; The number of SRS resources included in the first SRS resource set is equal to the first resource number, and the number of SRS resources included in the second SRS resource set is equal to the second resource number. The K1 is equal to the minimum value of the first maximum number of layers and the second resource number, or the K1 is equal to the minimum value of the second maximum number of layers and the second resource number.

74. The method in a second node according to claim 58, characterized by, The value of the K1 is related to whether the time domain resources occupied by the first sub-signal and the time domain resources occupied by the second sub-signal overlap.

75. A method in a second node according to claim 69, characterised by, The K2 is related to at least one of a first maximum number of layers, a second maximum number of layers and a third maximum number of layers; the first maximum number of layers, the second maximum number of layers and the third maximum number of layers are respectively positive integers greater than 1; at least one of the first maximum number of layers, the second maximum number of layers and the third maximum number of layers is configurable.

76. The method in a second node according to claim 58, characterised by, Comprising: sending a second information block; Among them, the second information block includes all or part of the information in an IE, whether the time domain resources occupied by the first sub-signal and the time domain resources occupied by the second sub-signal overlap and the second information block are related.

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