Method and apparatus for wireless communication

Abstract

Methods and apparatus for wireless communication are disclosed. A first node for wireless communication is disclosed, comprising: a first transmitter configured to transmit a first signal; a precoding of the first signal is dependent on one of a first set of SRS resources and a second set of SRS resources, both of which are configured; wherein the precoding of the first signal depends on the set of SRS resources in relation to whether a transmission of the first signal is across multiple frequency blocks; when the transmission of the first signal is within a first frequency block, the precoding of the first signal depends on the first set of SRS resources; when the transmission of the first signal is across the multiple frequency blocks, the precoding of the first signal depends on the second set of SRS resources; the multiple frequency blocks belong to a same cell and are on different carriers, respectively; and the first frequency block is one of the multiple frequency blocks.

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] In traditional wireless communication, terminals supporting carrier aggregation technology can transmit and receive on multiple cells. Carrier aggregation technology can enable terminals to obtain greater service bandwidth and higher transmission rates, but its utilization efficiency of fragmented spectrum resources is not high. Supporting the configuration of multiple carriers in the same cell can not only obtain greater service bandwidth and higher transmission rates, but also effectively improve the utilization efficiency of fragmented spectrum resources and reduce base station energy consumption.

[0003] Precoding is a key technology in mobile communications; using appropriate precoding can effectively improve signal transmission performance. Summary of the Invention

[0004] In scenarios where a single cell comprises multiple frequency blocks (different frequency blocks on different carriers), how to implement signal precoding is a key issue in system design. To address this issue, this application discloses a solution. Where there is no conflict, the embodiments and features in the first node of this application can be applied to the second node. Where there is no conflict, the embodiments and features in the embodiments of this application can be arbitrarily combined with each other.

[0005] Where necessary, the interpretation of terms used in this application may be referenced to the descriptions in the TS38 series of specification protocols of 3GPP (3rd Generation Partner Project).

[0006] This application discloses a method for a first node in wireless communication, characterized by comprising:

[0007] Send a first signal; the precoding of the first signal depends on one of a first SRS resource set and a second SRS resource set, both of which are configured;

[0008] The SRS resource set on which the precoding of the first signal depends is related to whether the transmission of the first signal spans multiple frequency blocks; when the transmission of the first signal is within the first frequency block, the precoding of the first signal depends on the first SRS resource set; when the transmission of the first signal spans the multiple frequency blocks, the precoding of the first signal depends on the second SRS resource set.

[0009] The multiple frequency blocks belong to the same cell and are on different carriers; the first frequency block is one of the multiple frequency blocks.

[0010] As an example, the problem this application aims to solve includes: how to improve the transmission performance of the first signal.

[0011] As an example, the above method provides the possibility of flexibly using precoding for signal transmissions allocated to different frequency domains (including signal transmission within a frequency block and signal transmission across frequency blocks), which is conducive to realizing precoding adapted to signal transmission, thereby improving signal transmission performance.

[0012] As an example, in the above method, when the transmission of the first signal spans the plurality of frequency blocks, the precoding of the first signal does not need to rely on multiple SRS (Sounding Reference Signal) resource sets; this feature simplifies system design and helps reduce equipment costs.

[0013] As an example, the advantages of the above method include: low implementation complexity and minimal standardization effort.

[0014] As an example, the solution disclosed in this application is applicable to signal transmission in different frequency domains in scenarios where the same cell includes multiple frequency blocks (different frequency blocks on different carriers), and has good versatility.

[0015] As one example, the first node is a user equipment.

[0016] As one example, the first node is a terminal.

[0017] According to one aspect of this application, the above method is characterized in that,

[0018] The first signal applies one of a first transmission strategy and a second transmission strategy. The first transmission strategy is one of codebook-based transmission and non-codebook-based transmission, and the second transmission strategy is the other of codebook-based transmission and non-codebook-based transmission.

[0019] When the transmission of the first signal is within the first frequency block, the first signal applies the first transmission strategy; when the transmission of the first signal spans the plurality of frequency blocks, the first signal applies the second transmission strategy.

[0020] As an example, the above method allows different transmission strategies to be applied to signal transmissions with different frequency domain allocations, further improving the flexibility of precoding.

[0021] According to one aspect of this application, the above method is characterized in that,

[0022] The plurality of frequency blocks includes a second frequency block; when the transmission of the first signal is within the second frequency block, the first signal applies the second transmission strategy.

[0023] According to one aspect of this application, the above method is characterized in that,

[0024] The plurality of frequency blocks includes a second frequency block; when the transmission of the first signal is within the second frequency block, the precoding of the first signal depends on the second SRS resource set.

[0025] As an example, the advantages of the above method include: it helps to avoid excessive SRS resource overhead while ensuring flexibility.

[0026] According to one aspect of this application, the above method is characterized by comprising:

[0027] Receive first signaling; the first signaling includes a first field, which is a field indicating SRS resources;

[0028] The precoding of the first signal is determined at least based on the indication of the first field included in the first signaling, and the indication of the first field included in the first signaling depends on the SRS resource set on which the precoding of the first signal depends.

[0029] As an example, the advantages of the above method include: it helps to improve the indication flexibility of the first field included in the first signaling.

[0030] As an example, the above method provides the possibility of optimizing the signaling design of the first signaling.

[0031] According to one aspect of this application, the above method is characterized in that,

[0032] The number of bits in the first field included in the first signaling is equal to the maximum value among a plurality of values, one of which depends on the first SRS resource set, and another of which depends on the second SRS resource set.

[0033] As an example, the above method provides the possibility of indicating SRS resources in different SRS resource sets under different frequency domain scheduling of the same domain, which is beneficial to improving the utilization efficiency of bits in the first signaling.

[0034] According to one aspect of this application, the above method is characterized in that,

[0035] Whether the first signaling includes a second field depends on the frequency domain resources indicated by the first signaling, wherein the second field is a field that at least indicates precoding information.

[0036] This application discloses a method for a second node in wireless communication, characterized by comprising:

[0037] Receive a first signal; the precoding of the first signal depends on one of a first SRS resource set and a second SRS resource set, both of which are configured;

[0038] The SRS resource set on which the precoding of the first signal depends is related to whether the transmission of the first signal spans multiple frequency blocks; when the transmission of the first signal is within the first frequency block, the precoding of the first signal depends on the first SRS resource set; when the transmission of the first signal spans the multiple frequency blocks, the precoding of the first signal depends on the second SRS resource set.

[0039] The multiple frequency blocks belong to the same cell and are on different carriers; the first frequency block is one of the multiple frequency blocks.

[0040] As one example, the second node is a network-side device.

[0041] In one embodiment, the second node is a base station.

[0042] According to one aspect of this application, the above method is characterized in that,

[0043] The first signal applies one of a first transmission strategy and a second transmission strategy, wherein the first transmission strategy is one of codebook-based transmission and non-codebook-based transmission, and the second transmission strategy is the other of codebook-based transmission and non-codebook-based transmission.

[0044] When the transmission of the first signal is within the first frequency block, the first signal applies the first transmission strategy; when the transmission of the first signal spans the plurality of frequency blocks, the first signal applies the second transmission strategy.

[0045] According to one aspect of this application, the above method is characterized in that,

[0046] The plurality of frequency blocks includes a second frequency block; when the transmission of the first signal is within the second frequency block, the first signal applies the second transmission strategy.

[0047] According to one aspect of this application, the above method is characterized in that,

[0048] The plurality of frequency blocks includes a second frequency block; when the transmission of the first signal is within the second frequency block, the precoding of the first signal depends on the second SRS resource set.

[0049] According to one aspect of this application, the above method is characterized by comprising:

[0050] Send a first signaling message; the first signaling message includes a first field, which is a field indicating an SRS resource;

[0051] The precoding of the first signal is determined at least based on the indication of the first field included in the first signaling, and the indication of the first field included in the first signaling depends on the SRS resource set on which the precoding of the first signal depends.

[0052] According to one aspect of this application, the above method is characterized in that,

[0053] The number of bits in the first field included in the first signaling is equal to the maximum value among a plurality of values, one of which depends on the first SRS resource set, and another of which depends on the second SRS resource set.

[0054] According to one aspect of this application, the above method is characterized in that,

[0055] Whether the first signaling includes a second field depends on the frequency domain resources indicated by the first signaling, wherein the second field is a field that at least indicates precoding information.

[0056] This application discloses a first node for wireless communication, characterized in that it includes:

[0057] A first transmitter transmits a first signal; the precoding of the first signal depends on one of a first SRS resource set and a second SRS resource set, both of which are configured.

[0058] The SRS resource set on which the precoding of the first signal depends is related to whether the transmission of the first signal spans multiple frequency blocks; when the transmission of the first signal is within the first frequency block, the precoding of the first signal depends on the first SRS resource set; when the transmission of the first signal spans the multiple frequency blocks, the precoding of the first signal depends on the second SRS resource set.

[0059] The multiple frequency blocks belong to the same cell and are on different carriers; the first frequency block is one of the multiple frequency blocks.

[0060] This application discloses a second node for wireless communication, characterized in that it includes:

[0061] The second receiver receives the first signal; the precoding of the first signal depends on one of a first SRS resource set and a second SRS resource set, both of which are configured.

[0062] The SRS resource set on which the precoding of the first signal depends is related to whether the transmission of the first signal spans multiple frequency blocks; when the transmission of the first signal is within the first frequency block, the precoding of the first signal depends on the first SRS resource set; when the transmission of the first signal spans the multiple frequency blocks, the precoding of the first signal depends on the second SRS resource set.

[0063] The multiple frequency blocks belong to the same cell and are on different carriers; the first frequency block is one of the multiple frequency blocks.

[0064] As an example, this application has the following advantages:

[0065] ●High flexibility;

[0066] It is applicable to both signal transmission within and across frequency blocks, ensuring both spectrum utilization efficiency and good versatility.

[0067] • It helps improve signal transmission performance;

[0068] ● The implementation of the solution requires low processing complexity and minimal work for standardization. Attached Figure Description

[0069] 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:

[0070] Figure 1 A flowchart illustrating the communication of a first node according to an embodiment of this application is shown;

[0071] Figure 2 A schematic diagram of a network architecture according to an embodiment of this application is shown;

[0072] Figure 3 A schematic diagram of an embodiment of a radio protocol architecture for the user plane and control plane according to an embodiment of this application is shown;

[0073] Figure 4 A schematic diagram of the hardware module of a communication node according to an embodiment of this application is shown;

[0074] Figure 5 A transmission flowchart between a first node and a second node according to an embodiment of this application is shown;

[0075] Figure 6 A schematic diagram illustrating the transmission of a first signal across multiple frequency blocks according to an embodiment of this application is shown;

[0076] Figure 7 A schematic diagram of the precoding of a first signal according to an embodiment of this application is shown;

[0077] Figure 8 A schematic diagram illustrating a first signaling and a first field according to an embodiment of this application is shown;

[0078] Figure 9 A schematic diagram illustrating whether a first signaling according to an embodiment of this application includes a second field is shown;

[0079] Figure 10 A structural block diagram of a processing apparatus for a first node according to an embodiment of this application is shown;

[0080] Figure 11 A structural block diagram of a processing apparatus for a second node according to an embodiment of this application is shown. Detailed Implementation

[0081] 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.

[0082] Example 1

[0083] Example 1 illustrates a flowchart of communication of a first node according to an embodiment of this application, as shown in the attached diagram. Figure 1 As shown.

[0084] The first node 100 sends the first signal in step 101.

[0085] In Example 1, the precoding of the first signal depends on one of a first SRS resource set and a second SRS resource set, both of which are configured. The SRS resource set on which the precoding of the first signal depends is related to whether the transmission of the first signal crosses multiple frequency blocks. When the transmission of the first signal is within a first frequency block, the precoding of the first signal depends on the first SRS resource set. When the transmission of the first signal crosses multiple frequency blocks, the precoding of the first signal depends on the second SRS resource set. The multiple frequency blocks belong to the same cell and are on different carriers. The first frequency block is one of the multiple frequency blocks.

[0086] As an example, the first signal is transmitted over a physical channel.

[0087] As an example, the first signal is transmitted over a physical uplink channel.

[0088] As an example, the first signal is transmitted on a PUSCH (Physical Uplink Shared Channel).

[0089] As an example, the first signal carries user data.

[0090] As one embodiment, the first signal carries at least one transport block.

[0091] As an example, during the generation of the first signal, the coded bits of the information to be transmitted are at least modulated and pre-coded.

[0092] As one embodiment, the first signal includes the output of the encoded bits of the information to be transmitted after at least scrambling, modulation, layer mapping, multi-antenna precoding, resource mapping, and physical antenna mapping.

[0093] As an example, the precoding of the first signal includes multi-antenna precoding.

[0094] As one embodiment, the precoding of the first signal includes a spatial filter used to transmit the first signal.

[0095] As one embodiment, the first SRS resource set includes multiple SRS resources.

[0096] As one embodiment, the second SRS resource set includes multiple SRS resources.

[0097] As one embodiment, the first SRS resource set and the second SRS resource set are configured separately.

[0098] As one embodiment, the first SRS resource set is configured by higher layer signaling.

[0099] As one example, the second SRS resource set is configured by higher-level signaling.

[0100] As one embodiment, the first SRS resource set is used for codebook-based or non-codebook-based transmission, and the second SRS resource set is used for codebook-based or non-codebook-based transmission.

[0101] As an example, from a frequency domain perspective, an SRS resource can be configured in at least a portion of the frequency domain resources included in the plurality of frequency blocks.

[0102] As an example, the transmission of the first signal is within the first frequency block, and the transmission of the first signal does not span the plurality of frequency blocks.

[0103] As one embodiment, the plurality of frequency blocks may be two frequency blocks or more than two frequency blocks.

[0104] As an example, at least one of the plurality of frequency blocks is used to transmit the first signal.

[0105] As an example, the plurality of frequency blocks includes a second frequency block; when the transmission of the first signal is within the second frequency block, the precoding of the first signal depends on the first SRS resource set.

[0106] As one embodiment, the plurality of frequency blocks includes a second frequency block; when the transmission of the first signal is within the second frequency block, the precoding of the first signal depends on the second SRS resource set.

[0107] As an example, when the second frequency block is not used to transmit the first signal, the precoding of the first signal depends on the first SRS resource set; when the second frequency block is used to transmit the first signal, the precoding of the first signal depends on the second SRS resource set.

[0108] As an example, when one of the plurality of frequency blocks is not used to transmit the first signal, the transmission of the first signal does not span the plurality of frequency blocks.

[0109] As an example, when a frequency block includes at least a portion of the frequency domain resources allocated to the first signal, the frequency block is used to transmit the first signal; when a frequency block does not include any frequency domain resources allocated to the first signal, the frequency block is not used to transmit the first signal.

[0110] As an example, the transmission of the first signal is within one frequency block, and the transmission of the first signal does not span the plurality of frequency blocks.

[0111] As an example, when all the frequency domain resources allocated to the first signal are frequency domain resources in a frequency block, the transmission of the first signal is within this frequency block.

[0112] As an example, when the transmission of the first signal is within the first frequency block, the precoding of the first signal does not depend on the configuration of the second SRS resource set.

[0113] As an example, when the transmission of the first signal is within the first frequency block, the configuration of the second SRS resource set does not need to be considered when determining the precoding of the first signal.

[0114] As an example, when the plurality of frequency blocks respectively include different portions of the frequency domain resources allocated to the first signal, the transmission of the first signal spans the plurality of frequency blocks.

[0115] As an example, when the transmission of the first signal spans the plurality of frequency blocks, the precoding of the first signal does not depend on the configuration of the first SRS resource set.

[0116] As an example, when the transmission of the first signal spans the plurality of frequency blocks, the configuration of the first SRS resource set does not need to be considered when determining the precoding of the first signal.

[0117] As an example, a frequency block is configured.

[0118] As an example, a frequency block comprises contiguous frequency domain resources.

[0119] As an example, a frequency block includes at least a portion of the frequency band on a carrier.

[0120] As an example, a frequency block can be a carrier, or a portion of a frequency band on a carrier (in both cases, the frequency block is considered to be on the carrier).

[0121] As an example, a frequency block includes multiple RBs (Resource Blocks).

[0122] As an example, the carrier in which a frequency block is located is a radio frequency (RF) carrier.

[0123] As an example, the carrier of a frequency block is a radio frequency channel.

[0124] As an example, the carrier of a frequency block is a radio frequency channel after channelization.

[0125] As an example, the carrier of a frequency block is a channel with a certain radio frequency channel bandwidth.

[0126] As an example, the carrier in which a frequency block is located is a CC (component carrier).

[0127] As an example, a cell is a serving cell.

[0128] As an example, a cell includes a frequency block, which belongs to the cell.

[0129] As an example, a frequency block included in a cell is a frequency block that is configured for that cell.

[0130] As an example, a frequency block included in a cell is a frequency block allocated to a carrier of that cell.

[0131] As an example, the configuration information of a cell includes the configuration information of each frequency block included in the cell.

[0132] As an example, multiple carriers can be configured for a single cell.

[0133] As one example, the plurality of frequency blocks are on different carriers.

[0134] As one embodiment, the different carriers include a primary carrier or an anchor carrier.

[0135] As an example, the carrier carrying SIB1 among the different carriers is the main carrier (or anchor carrier).

[0136] As an example, the carrier with CORESET#0 (control resource set#0) or with an initial BWP (bandwidth part) among the different carriers is the primary carrier (or anchor carrier).

[0137] As one example, the carrier in which the second frequency block is located is the main carrier (or anchor carrier).

[0138] As an example, the different carriers all belong to the same frequency range (FR).

[0139] As an example, the different carriers all belong to frequency range 1 (FR1).

[0140] As an example, limiting the different carriers to the same frequency range (at least in the initial version) reduces implementation complexity while effectively utilizing the existing main fragmented spectrum.

[0141] As an example, there are two carriers belonging to different frequency ranges among the different carriers.

[0142] As an example, the different carriers employ the same mathematical structure.

[0143] As an example, the different carriers use the same subcarrier spacing.

[0144] As an example, restricting different carriers to use the same subcarrier spacing simplifies scheduling design.

[0145] As one example, there are two carriers among the different carriers that use different subcarrier spacings.

[0146] As an example, among the different carriers, the index of the carrier in which the first frequency block is located is not the smallest.

[0147] As a sub-example of the above embodiment, among the different carriers, the index of the carrier in which the second frequency block is located is the smallest.

[0148] As an example, among the different carriers, the index of the carrier in which the first frequency block is located is not the largest.

[0149] As a sub-example of the above embodiment, among the different carriers, the index of the carrier in which the second frequency block is located is the largest.

[0150] As an example, the first signal uses codebook-based transmission.

[0151] As an example, the first signal is applied based on non-codebook transmission.

[0152] Example 2

[0153] Example 2 illustrates a schematic diagram of a network architecture according to this application, as shown in the attached diagram. Figure 2 As shown. (Attached) Figure 2This document illustrates the network architecture 200 for 6G, 5G NR, 5G-Advanced, LTE (Long-Term Evolution), and LTE-A (Long-Term Evolution Advanced) systems. The 6G, 5G NR, or LTE network architecture 200 may be referred to as 6GS (6G System) / 5GS (5G System) / EPS (Evolved Packet System) 200 or some other suitable terminology. The 6GS / 5GS / EPS 200 may include one or more UEs (User Equipment) 201, RANs (Radio Access Networks) 202, 6GCs (6G Core Networks) / 5GCs (5G Core Networks) / EPCs (Evolved Packet Cores) 210, HSSs (Home Subscriber Servers) / UDMs (Unified Data Management) 220, and Internet services 230. The 6GS / 5GS / EPS can interconnect with other access networks, but these entities / interfaces are not shown for simplicity. As shown in the figure, the 6GS / 5GS / EPS 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 or other cellular networks. The RAN includes network node 203 and other network nodes 204. Network node 203 provides user and control plane protocol termination toward UE 201. Network node 203 can be connected to other network nodes 204 via backhaul. Network node 203 may also be referred to as eNB, gNB, base station, ground station, satellite base station, aircraft base station, base transceiver station, radio base station, radio transceiver, transceiver function, Basic Services Set (BSS), Extended Services Set (ESS), TRP (Transmitter Receiver Node), or some other suitable term. Network node 203 provides UE201 with an access point to 6GC / 5GC / EPC210. ​​Examples of UE201 include cellular phones, smartphones, Session Initiation Protocol (SIP) phones, laptops, personal digital assistants (PDAs), satellite radios, non-terrestrial communications, satellite mobile communications, GPS, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, drones, aircraft, IoT devices, machine-type communication devices, land vehicles, automobiles, wearable devices, test equipment, RFID devices, electronic tags, sensor devices, test instruments, test tools, 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, radio unit, remote unit, mobile device, radio device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, radio terminal, remote terminal, handheld device, user agent, mobile client, client, or any other suitable term. Network node 203 is connected to 6GC / 5GC / EPC210 via the S1 / NG interface. 6GC / 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. The MME / AMF / SMF211 is the control node that handles signaling between UE201 and 6GC / 5GC / EPC210. ​​Essentially, the MME / AMF / SMF211 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-switched streaming services.

[0154] As an example, the UE201 corresponds to the first node in this application.

[0155] As an example, the UE201 supports multi-carrier transmission.

[0156] As an example, the network node 203 corresponds to the second node in this application.

[0157] As an example, the network node 203 supports multi-carrier transmission.

[0158] As an example, the wireless link between the UE201 and the node203 includes a cellular link.

[0159] As an example, the network node 203 is a macrocell base station.

[0160] As an example, the network node 203 is a microcell base station.

[0161] As an example, the network node 203 is a PicoCell base station.

[0162] As an example, the network node 203 is a femtocell.

[0163] As an example, the network node 203 is a base station device that supports large latency differences.

[0164] As one example, the network node 203 is a flight platform device.

[0165] As one example, the network node 203 is a satellite device.

[0166] Example 3

[0167] 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 for the control plane 300 used by user equipment and network-side equipment is illustrated in three layers: Layer 1, Layer 2, and Layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (Physical Layer) signal processing functions. L1 layer will be referred to as PHY301 in this document. Layer 2 (L2 layer) 305 sits above PHY301 and is responsible for the link between user equipment and network-side equipment via PHY301. L2 layer 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 network-side equipment. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security through encrypted data packets and supports cross-area mobility between network-side equipment and user equipment. RLC sublayer 303 provides upper-layer packet segmentation and reassembly, retransmission of lost packets, and packet reordering to compensate for out-of-order reception due to HARQ. MAC sublayer 302 provides multiplexing between the logical and transport channels. MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) within a cell among user equipment. 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 layers using RRC signaling between network-side equipment and user equipment. The radio protocol architecture of user plane 350 includes Layer 1 (L1 layer) and Layer 2 (L2 layer). The radio protocol architecture for user equipment and network-side equipment 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 packets to reduce radio transmission overhead. L2 layer 355 in user plane 350 also includes SDAP (Service Data Adaptation Protocol) sublayer 356. SDAP sublayer 356 is responsible for mapping between QoS flows and Data Radio Bearers (DRBs) to support service diversity.Although not illustrated, the user equipment 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., remote UE, server, etc.).

[0168] As an example, Appendix Figure 3 The wireless protocol architecture described herein is applicable to the first node in this application.

[0169] As an example, Appendix Figure 3 The wireless protocol architecture described herein is applicable to the second node in this application.

[0170] As an example, the first node and the second node in this application are the user equipment and network-side equipment in Example 3, respectively.

[0171] As an example, the first signaling in this application is generated in the PHY301.

[0172] As an example, the first signal in this application is generated in the PHY351.

[0173] As an example, the higher layer mentioned in this application refers to the layer above the physical layer.

[0174] Example 4

[0175] Example 4 illustrates a hardware module schematic diagram of a communication node according to an embodiment of this application, as shown in the attached diagram. Figure 4 As shown. Figure 4 This is a block diagram of a first communication device 450 and a second communication device 410 communicating with each other in the access network.

[0176] The first 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.

[0177] The second 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.

[0178] In the transmission from the second communication device 410 to the first communication device 450, at the second 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 transmission from the second communication device 410 to the first communication device 450, the controller / processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the first communication device 450 based on various priority metrics. The controller / processor 475 is also responsible for retransmitting lost packets and signaling to the first 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 channel coding and interleaving to facilitate forward error correction (FEC) at the second communication device 410, and mapping of signal clusters 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 spatial streams. Transmit processor 416 then maps each spatial stream to subcarriers, multiplexes it 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.

[0179] In the transmission from the second communication device 410 to the first communication device 450, at the first 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 spatial stream destined for the first communication device 450. Symbols on each spatial stream are demodulated and recovered in the receive processor 456, generating soft decisions. The receive processor 456 then deinterleaves and decodes the soft decisions to recover the upper-layer data and control signals transmitted by the second communication device 410 over the physical channel. 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. 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 transmission from the second communication device 410 to the second node 450, the controller / processor 459 provides multiplexing, packet reassembly, decryption, header decompression, and control signal processing between the transport and logical channels to recover upper-layer data packets from the core network. The upper-layer data packets are then provided to all protocol layers above Layer 2. Various control signals may also be provided to Layer 3 for Layer 3 processing.

[0180] In the transmission from the first communication device 450 to the second communication device 410, at the first 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 second communication device 410 described in the transmission from the second communication device 410 to the first communication device 450, the controller / processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocation, implementing L2 layer functions for the user plane and control plane. The controller / processor 459 is also responsible for retransmitting lost packets and signaling to the second communication device 410. Transmit processor 468 performs channel coding, interleaving, and modulation mapping. Multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based and non-codebook-based precoding, and beamforming. Subsequently, transmit processor 468 modulates the generated spatial 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.

[0181] In the transmission from the first communication device 450 to the second communication device 410, the function at the second communication device 410 is similar to the receiving function at the first communication device 450 described in the transmission from the second communication device 410 to the first 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. In the transmission from the first communication device 450 to the second communication device 410, the controller / processor 475 provides multiplexing between the transmission and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover upper-layer data packets from the UE 450. Upper-layer packets from the controller / processor 475 can be provided to the core network.

[0182] As one embodiment, the first 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, and the first communication device 450 at least: transmits a first signal; the precoding of the first signal depends on one of a first SRS resource set and a second SRS resource set, both of which are configured;

[0183] The SRS resource set on which the precoding of the first signal depends is related to whether the transmission of the first signal spans multiple frequency blocks; when the transmission of the first signal is within the first frequency block, the precoding of the first signal depends on the first SRS resource set; when the transmission of the first signal spans the multiple frequency blocks, the precoding of the first signal depends on the second SRS resource set.

[0184] The multiple frequency blocks belong to the same cell and are on different carriers; the first frequency block is one of the multiple frequency blocks.

[0185] As one embodiment, the first communication device 450 includes: a memory storing a computer-readable instruction program that produces an action when executed by at least one processor, the action including: transmitting a first signal; the precoding of the first signal depends on one of a first SRS resource set and a second SRS resource set, both of which are configured;

[0186] The SRS resource set on which the precoding of the first signal depends is related to whether the transmission of the first signal spans multiple frequency blocks; when the transmission of the first signal is within the first frequency block, the precoding of the first signal depends on the first SRS resource set; when the transmission of the first signal spans the multiple frequency blocks, the precoding of the first signal depends on the second SRS resource set.

[0187] The multiple frequency blocks belong to the same cell and are on different carriers; the first frequency block is one of the multiple frequency blocks.

[0188] As one embodiment, the second 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 second communication device 410 at least: receives a first signal; the precoding of the first signal depends on one of a first SRS resource set and a second SRS resource set, both of which are configured;

[0189] The SRS resource set on which the precoding of the first signal depends is related to whether the transmission of the first signal spans multiple frequency blocks; when the transmission of the first signal is within the first frequency block, the precoding of the first signal depends on the first SRS resource set; when the transmission of the first signal spans the multiple frequency blocks, the precoding of the first signal depends on the second SRS resource set.

[0190] The multiple frequency blocks belong to the same cell and are on different carriers; the first frequency block is one of the multiple frequency blocks.

[0191] As one embodiment, the second communication device 410 includes: a memory storing a computer-readable instruction program that produces an action when executed by at least one processor, the action including: receiving a first signal; the precoding of the first signal depends on one of a first SRS resource set and a second SRS resource set, both of which are configured;

[0192] The SRS resource set on which the precoding of the first signal depends is related to whether the transmission of the first signal spans multiple frequency blocks; when the transmission of the first signal is within the first frequency block, the precoding of the first signal depends on the first SRS resource set; when the transmission of the first signal spans the multiple frequency blocks, the precoding of the first signal depends on the second SRS resource set.

[0193] The multiple frequency blocks belong to the same cell and are on different carriers; the first frequency block is one of the multiple frequency blocks.

[0194] As an example, the first communication device 450 is the first node in this application.

[0195] As an example, the second communication device 410 is the second node in this application.

[0196] As an example, the first communication device 450 is a UE, and the second communication device 410 is a base station.

[0197] As an example, at least one of {the antenna 452, the receiver 454, the multi-antenna receiving processor 458, the receiving processor 456, the controller / processor 459, the memory 460, and the data source 467} is used to receive the first signaling in this application.

[0198] As an example, at least one of {the antenna 420, the transmitter 418, the multi-antenna transmitter processor 471, the transmitter processor 416, the controller / processor 475, and the memory 476} is used to transmit the first signaling in this application.

[0199] As an example, at least one of {the antenna 452, the transmitter 454, the multi-antenna transmitter processor 457, the transmitter processor 468, the controller / processor 459, the memory 460, and the data source 467} is used to transmit the first signal in this application.

[0200] As an example, at least one of {the antenna 420, the receiver 418, the multi-antenna receiver processor 472, the receiver processor 470, the controller / processor 475, and the memory 476} is used to receive the first signal in this application.

[0201] Example 5

[0202] Example 5 illustrates a transmission flowchart between a first node and a second node according to an embodiment of this application, as shown in the attached diagram. Figure 5 As shown. Specifically, in the appendix... Figure 5 In the dashed box F1, the steps are optional.

[0203] The first node U1 receives the first signaling in step S510 and sends the first signal in step S511.

[0204] The second node U2 sends the first signaling in step S520 and receives the first signal in step S521.

[0205] In embodiment 5, the precoding of the first signal depends on one of a first SRS resource set and a second SRS resource set, both of which are configured.

[0206] The SRS resource set on which the precoding of the first signal depends is related to whether the transmission of the first signal spans multiple frequency blocks; when the transmission of the first signal is within the first frequency block, the precoding of the first signal depends on the first SRS resource set; when the transmission of the first signal spans the multiple frequency blocks, the precoding of the first signal depends on the second SRS resource set.

[0207] The multiple frequency blocks belong to the same cell and are on different carriers; the first frequency block is one of the multiple frequency blocks;

[0208] The first signaling includes a first field, which is a field indicating SRS resources; the precoding of the first signal is determined at least based on the indication of the first field included in the first signaling, the indication of the first field included in the first signaling depending on the set of SRS resources on which the precoding of the first signal depends; the number of bits in the first field included in the first signaling is equal to the maximum value of a plurality of values, one of which depends on the first set of SRS resources, and another of which depends on the second set of SRS resources.

[0209] As a sub-example of Example 5, the plurality of frequency blocks include a second frequency block; when the transmission of the first signal is within the second frequency block, the precoding of the first signal depends on the second SRS resource set.

[0210] As a sub-example of Example 5, the first signal applies one of a first transmission strategy and a second transmission strategy. The first transmission strategy is one of codebook-based transmission and non-codebook-based transmission, and the second transmission strategy is the other of codebook-based transmission and non-codebook-based transmission.

[0211] When the transmission of the first signal is within the first frequency block, the first signal applies the first transmission strategy; when the transmission of the first signal spans the plurality of frequency blocks, the first signal applies the second transmission strategy.

[0212] As a sub-implementation of Embodiment 5, whether the first signaling includes a second field depends on the frequency domain resources indicated by the first signaling, wherein the second field is a field that at least indicates precoding information.

[0213] The above-described Embodiment 5 and its various sub-embodiments can be combined with each other arbitrarily.

[0214] As an example, the first node U1 is the first node in this application.

[0215] As an example, the second node U2 is the second node in this application.

[0216] As an example, the first node U1 is a UE.

[0217] As one example, the second node U2 is a base station.

[0218] As one embodiment, the air interface between the second node U2 and the first node U1 is the Uu interface.

[0219] As one embodiment, the air interface between the second node U2 and the first node U1 includes a cellular link.

[0220] As one embodiment, the air interface between the second node U2 and the first node U1 includes a wireless interface between the base station equipment and the user equipment.

[0221] As one embodiment, the air interface between the second node U2 and the first node U1 includes a wireless interface between satellite equipment and user equipment.

[0222] As one embodiment, the air interface between the second node U2 and the first node U1 includes a wireless interface between the relay device and the user equipment.

[0223] As an example, the steps in the dashed box F1 are present.

[0224] As an example, the step in the dashed box F1 does not exist.

[0225] As one embodiment, the plurality of frequency blocks includes a second frequency block; when the transmission of the first signal is within the second frequency block, the first signal applies the second transmission strategy.

[0226] As one embodiment, the plurality of frequency blocks includes a second frequency block; when the transmission of the first signal is within the second frequency block, whether the first signal applies codebook-based transmission or non-codebook-based transmission is determined according to the configuration of higher-layer signaling.

[0227] As one embodiment, the first signal applies a transmission strategy, including: the precoding of the first signal is a precoding determined based on this transmission strategy.

[0228] As one example, the first transmission strategy is codebook-based transmission, and the second transmission strategy is non-codebook-based transmission.

[0229] As an example, the first transmission strategy is based on non-codebook transmission, and the second transmission strategy is based on codebook transmission.

[0230] As one example, the first signal is transmitted through multiple antenna ports.

[0231] As one embodiment, the transmission of the first signal includes data transmission of multiple transmission layers.

[0232] Example 6

[0233] Example 6 illustrates a schematic diagram of the transmission of a first signal across multiple frequency blocks according to an embodiment of this application, as shown in the attached diagram. Figure 6 As shown. In the appendix Figure 6 In the diagram, each gray-filled portion represents a frequency block, and each dashed box represents the portion of the first signal that is transmitted on the corresponding frequency block.

[0234] Appendix Figure 6 The plurality of frequency blocks shown are two frequency blocks; the plurality of frequency blocks may also be more than two frequency blocks.

[0235] As an example, the first frequency block is frequency block #1.

[0236] As an example, the first frequency block is frequency block #2.

[0237] As one embodiment, the transmission of the first signal spans the plurality of frequency blocks; on each of the plurality of frequency blocks, a portion of the first signal is transmitted.

[0238] As an example, for each of the plurality of frequency blocks, a portion of all modulation symbols to be transmitted via the first signal is mapped to frequency domain resources in that frequency block.

[0239] Example 7

[0240] Example 7 illustrates a schematic diagram of the precoding of a first signal according to an embodiment of this application, as shown in the attached diagram. Figure 7 As shown.

[0241] In embodiment 7, in order to transmit the first signal, the modulation symbols to be transmitted are first mapped by layer, then precoded by multiple antennas and mapped by resources, and finally mapped onto the physical antenna by spatial filter F.

[0242] In Example 7, the precoding of the first signal depends on a given set of SRS resources.

[0243] As one embodiment, the precoding of the first signal includes multi-antenna precoding and spatial filtering.

[0244] As an example, the given SRS resource set is the SRS resource set on which the precoding of the first signal depends.

[0245] As an example, the given SRS resource set can be either the first SRS resource set or the second SRS resource set.

[0246] As an example, the resource mapping includes mapping the complex-valued symbols obtained after the multi-antenna precoding to the allocated time-frequency resources (e.g., resource elements).

[0247] As one embodiment, the resource mapping includes mapping to virtual resource blocks and mapping from virtual resource blocks to physical resource blocks.

[0248] As one embodiment, the precoding of the first signal depends on the given SRS resource set, including:

[0249] The precoding of the first signal is determined at least based on the indication of the field indicating SRS resource(s) included in the scheduling signaling of the first signal; wherein the indication of the field indicating SRS resource(s) included in the scheduling signaling of the first signal depends on the given set of SRS resources.

[0250] As one embodiment, the precoding of the first signal depends on the given SRS resource set, including:

[0251] The precoding of the first signal is determined based at least on at least one SRS resource indicated by the scheduling signaling of the first signal; wherein the indication of the at least one SRS resource by the scheduling signaling of the first signal depends on the given set of SRS resources.

[0252] As an example, the selection range of the spatial filter F is limited by the at least one SRS resource indicated by the scheduling signaling of the first signal.

[0253] As an example, each of the at least one SRS resources indicated by the scheduling signaling of the first signal is an SRS resource in the given set of SRS resources.

[0254] As an example, each candidate of the at least one SRS resource indicated by the scheduling signaling of the first signal is one or more SRS resources belonging to the given SRS resource set.

[0255] As an example, the at least one SRS resource indicated by the scheduling signaling of the first signal is indicated by the SRI (SRS resource indicator) field included in the scheduling signaling of the first signal.

[0256] As an example, the scheduling signaling of the first signal is the first signaling in this application; the at least one SRS resource indicated by the scheduling signaling of the first signal is indicated by the first field included in the first signaling.

[0257] As an example, for codebook-based transmission, the matrix W of the multi-antenna precoding is indicated by the scheduling signaling of the first signal.

[0258] As a sub-example of the above embodiments, the multi-antenna precoding matrix W is selected from some predefined codebooks.

[0259] As a sub-implementation of the above embodiments, the multi-antenna precoding matrix W is determined based on the indication of the precoding information and number of layers field included in the scheduling signaling of the first signal.

[0260] As an example, for codebook-based transmission, each SRS resource in the given SRS resource set corresponds to a spatial filter; for each SRS resource in the given SRS resource set, the specific spatial filter corresponding to it can be determined by the first node itself. For example, without limitation, the corresponding spatial filter can be a randomly selected spatial filter, or it can be set to be a spatial filter aligned with a specific beam direction.

[0261] The first node transmits each SRS resource in the given SRS resource set. The network side can determine the corresponding transmission effect by measuring these SRS resources and select one SRS resource from the given SRS resource set. The network side then uses the indication of the SRS resource field included in the scheduling signaling of the first signal to inform the first node to use the corresponding spatial filter (as an appendix). Figure 7 The spatial filter F in the text.

[0262] As an example, the matrix W for multi-antenna precoding is an identity matrix (this applies at least to non-codebook-based transmissions).

[0263] As an example, for non-codebook-based transmission:

[0264] Each SRS resource in the given SRS resource set is transmitted by the first node on a layer, wherein the layers transmitting different SRS resources correspond to different columns in the same precoding matrix; (the same precoding matrix can be determined by the first node based on the measurement of CSI-RS (Channel State Information Reference Signal) resources. Here is a typical but non-limiting implementation: different columns of the same precoding matrix can be beamformed for different directions).

[0265] The network side can (based on the results of measuring these SRS resources) select one or more SRS resources from the given SRS resource set and inform the first node to use the corresponding column (constituting the precoding for final transmission) for transmission by means of the indication of the SRS resource field included in the scheduling signaling of the first signal.

[0266] It should be noted that the appendix can be attached here. Figure 7 The multi-antenna precoding and spatial filter are considered as a whole, such that the combined effect of the multi-antenna precoding matrix W and the spatial filter F is equivalent to the effect of the final precoding used for transmission (as a typical but non-limiting implementation, the multi-antenna precoding matrix W is an identity matrix, and the spatial filter F is equivalent to the final precoding used for transmission).

[0267] As one example, sending an SRS resource includes: sending an SRS on the SRS resource.

[0268] As an example, measuring an SRS resource includes measuring SRS transmitted on that SRS resource.

[0269] As an example, the algorithm by which the network side selects SRS resources from the given SRS resource set can be determined by the corresponding equipment manufacturer and does not need to be specified in the protocol.

[0270] Example 8

[0271] Example 8 illustrates a schematic diagram of the first signaling and the first field according to an embodiment of this application, as shown in the attached diagram. Figure 8 As shown.

[0272] In embodiment 8, the first node receives a first signaling, which is a scheduling signaling for the first signal; the first signaling includes a first field, which is a field indicating SRS resources;

[0273] The precoding of the first signal is determined at least based on the indication of the first field included in the first signaling, and the indication of the first field included in the first signaling depends on the SRS resource set on which the precoding of the first signal depends.

[0274] As an example, the first signaling is physical layer signaling.

[0275] As an example, the first signaling is DCI (Downlink Control Information).

[0276] As one embodiment, the first signaling includes multiple fields in the DCI format.

[0277] As one embodiment, the first signaling instructs the transmission of the first signal.

[0278] As one embodiment, the first signaling includes indication information of frequency domain resources allocated to the first signal.

[0279] As an example, the first signaling indicates that the frequency domain of the first signal is allocated before the first domain.

[0280] As one embodiment, the first signaling includes indication information of time-domain resources allocated to the first signal.

[0281] As an example, the first field includes at least one bit.

[0282] As an example, the first field is a field in the DCI format.

[0283] As an example, the first field is the SRS resource indicator field.

[0284] As an example, the first field included in the first signaling indicates at least one SRS resource.

[0285] As an example, the first field included in the first signaling indicates at least a portion of the precoding of the first signal.

[0286] As one embodiment, the indication of the first field included in the first signaling depends on the SRS resource set on which the precoding of the first signal depends, including:

[0287] In the first field included in the first signaling, the number of bits used to indicate SRS resources (SRS resource(s)) depends on the set of SRS resources on which the precoding of the first signal depends.

[0288] As one embodiment, the first signaling uses codebook-based transmission, and the number of bits in the first field included in the first signaling that indicate SRS resources(s) is [number missing]. Wherein, the N SRS It is the number of SRS resources in the SRS resource set on which the precoding of the first signal depends.

[0289] As a sub-implementation of the above embodiments, the first field included in the first signaling indicates an SRS resource in the SRS resource set on which the precoding of the first signal depends.

[0290] As one embodiment, the first signaling applies non-codebook-based transmission, and the number of bits in the first field included in the first signaling for indicating SRS resources(s) is [number missing]. Wherein, the N SRS The L is the number of SRS resources in the SRS resource set upon which the precoding of the first signal depends. max It is the maximum number of layers configured or reported by the first node.

[0291] As a sub-implementation of the above embodiments, the first field included in the first signaling indicates k SRS resources in the SRS resource set on which the precoding of the first signal depends.

[0292] As an example, the L max It is configured or reported for non-codebook-based transmission.

[0293] As an example, the number of bits in the first field included in the first signaling is equal to the maximum value among a plurality of values, one of which depends on the first SRS resource set, and another of which depends on the second SRS resource set.

[0294] As an example, the first transmission strategy in this application is codebook-based transmission, and the second transmission strategy in this application is non-codebook-based transmission; the number of bits in the first field included in the first signaling is equal to the maximum value among a plurality of values, the plurality of values ​​including and Wherein, the N SRS 1 represents the number of SRS resources in the first SRS resource set, and N represents the number of SRS resources in the first SRS resource set. SRS ,2 is the number of SRS resources in the second SRS resource set, and L max It is the maximum number of layers configured or reported by the first node.

[0295] As an embodiment, the first transmission strategy in this application is based on non-codebook transmission, and the second transmission strategy in this application is based on codebook transmission; the number of bits in the first field included in the first signaling is equal to the maximum value among a plurality of values, the plurality of values ​​including a first value and a second value, the first value being... The second value is Wherein, the N SRS 1 represents the number of SRS resources in the first SRS resource set, and N represents the number of SRS resources in the first SRS resource set. SRS ,2 is the number of SRS resources in the second SRS resource set, and L max It is the maximum number of layers configured or reported by the first node.

[0296] As an example, the plurality of values ​​includes only the first value and the second value.

[0297] As one example, the plurality of values ​​includes the first value, the second value, and a value configured by a higher-level parameter.

[0298] As an example, bits in the first field included in the first signaling, other than the bits used to indicate SRS resource(s) (if any), may be used to indicate other information besides SRS resources.

[0299] As a sub-implementation of the above embodiments, the other information besides SRS resources includes the scheduling information of the first signal.

[0300] As a sub-implementation of the above embodiments, without limitation, the other information besides SRS resources may be: the precoding matrix used, the antenna port occupied, or power control information, etc.

[0301] As an example, the advantages of the above method are: high bit utilization efficiency, which helps to reduce signaling overhead.

[0302] As an example, the bits in the first field included in the first signaling, except for the bits used to indicate SRS resource(s) (if any), are reserved.

[0303] As an example, the bits in the first field included in the first signaling, except for the bits used to indicate SRS resources (SRS resource(s)), can be fixed to 0.

[0304] As an example, the bits in the first field included in the first signaling, except for the bits used to indicate SRS resources (SRS resource(s)), can be fixed to 1.

[0305] As an example, the antenna port used to transmit the first signal is the same as the SRS port(s) of the SRS resource indicated by the first field included in the first signaling.

[0306] Example 9

[0307] Example 9 illustrates a schematic diagram showing whether a first signaling according to an embodiment of this application includes a second field, as shown in the attached diagram. Figure 9 As shown.

[0308] In embodiment 9, whether the first signaling includes a second field depends on the frequency domain resources indicated by the first signaling, wherein the second field is a field that at least indicates precoding information.

[0309] As an example, the first signaling does not include the second field, which is equivalent to the first signaling including the second field having 0 bits.

[0310] As an example, the second field at least indicates TPMI (Transmission Precoding Matrix Indicator).

[0311] As an example, the second field is a field that indicates precoding information and the number of layers.

[0312] As an example, the frequency domain resources indicated by the first signaling are allocated to the first signal.

[0313] As one embodiment, the frequency domain resources indicated by the first signaling are all frequency domain resources in a frequency block, and the transmission of the first signal is within this frequency block; or, the plurality of frequency blocks respectively include different parts of the frequency domain resources indicated by the first signaling, and the transmission of the first signal spans the plurality of frequency blocks.

[0314] As an example, the first transmission strategy is codebook-based transmission, and the second transmission strategy is non-codebook-based transmission; when all the frequency domain resources indicated by the first signaling are frequency domain resources in the first frequency block, the first signal applies the first transmission strategy, and the first signaling includes the second domain; when the plurality of frequency blocks respectively include different parts of the frequency domain resources indicated by the first signaling, the first signal applies the second transmission strategy, and the first signaling does not include the second domain.

[0315] As an example, the first transmission strategy is non-codebook-based transmission, and the second transmission strategy is codebook-based transmission; when all the frequency domain resources indicated by the first signaling are frequency domain resources in the first frequency block, the first signal applies the first transmission strategy, and the first signaling does not include the second domain; when the plurality of frequency blocks respectively include different parts of the frequency domain resources indicated by the first signaling, the first signal applies the second transmission strategy, and the first signaling includes the second domain.

[0316] As an example, the first signal applies the second transmission strategy, the first signaling includes the second field, and the second field included in the first signaling indicates the multi-antenna precoding matrix W in this application.

[0317] Example 10

[0318] Example 10 illustrates a structural block diagram of a processing apparatus for a first node according to an embodiment of this application; as shown in the appendix. Figure 10 As shown. In the appendix Figure 10 In the first node, the processing device A00 includes a first receiver A01 and a first transmitter A02.

[0319] As one example, the first node is a user equipment.

[0320] As one example, the first node is a user equipment in a 5G or 6G network.

[0321] As an example, the first node is a user equipment that supports configuring multiple carriers on the same serving cell.

[0322] As one embodiment, the first receiver A01 includes the appendix to this application. Figure 4 The antenna 452, receiver 454, multi-antenna receiver processor 458, receiver processor 456, controller / processor 459, memory 460, and data source 467 are at least one of them.

[0323] As one embodiment, the first receiver A01 includes the appendix to this application. Figure 4 The antenna 452, receiver 454, multi-antenna receiver processor 458, receiver processor 456, controller / processor 459, memory 460, and data source 467 are at least the first five of the following:

[0324] As one embodiment, the first receiver A01 includes the appendix to this application. Figure 4 At least four of the following: antenna 452, receiver 454, multi-antenna receiver processor 458, receiver processor 456, controller / processor 459, memory 460, and data source 467.

[0325] As one embodiment, the first receiver A01 includes the appendix to this application. Figure 4 At least three of the following: antenna 452, receiver 454, multi-antenna receiver processor 458, receiver processor 456, controller / processor 459, memory 460, and data source 467.

[0326] As one embodiment, the first receiver A01 includes the appendix to this application. Figure 4 At least two of the following: antenna 452, receiver 454, multi-antenna receiver processor 458, receiver processor 456, controller / processor 459, memory 460, and data source 467.

[0327] As one embodiment, the first transmitter A02 includes the appendix to this application. Figure 4 The antenna 452, transmitter 454, multi-antenna transmission processor 457, transmission processor 468, controller / processor 459, memory 460 and data source 467 are at least one of them.

[0328] As one embodiment, the first transmitter A02 includes the appendix to this application. Figure 4 The antenna 452, transmitter 454, multi-antenna transmission processor 457, transmission processor 468, controller / processor 459, memory 460, and data source 467 are at least the first five of the following:

[0329] As one embodiment, the first transmitter A02 includes the appendix to this application. Figure 4The antenna 452, transmitter 454, multi-antenna transmission processor 457, transmission processor 468, controller / processor 459, memory 460 and data source 467 are at least the first four of them.

[0330] As one embodiment, the first transmitter A02 includes the appendix to this application. Figure 4 At least three of the following: antenna 452, transmitter 454, multi-antenna transmitter processor 457, transmitter processor 468, controller / processor 459, memory 460, and data source 467.

[0331] As one embodiment, the first transmitter A02 includes the appendix to this application. Figure 4 At least two of the following: antenna 452, transmitter 454, multi-antenna transmitter processor 457, transmitter processor 468, controller / processor 459, memory 460, and data source 467.

[0332] As one embodiment, the first transmitter A02 transmits a first signal; the precoding of the first signal depends on one of a first SRS resource set and a second SRS resource set, both of which are configured;

[0333] The SRS resource set on which the precoding of the first signal depends is related to whether the transmission of the first signal spans multiple frequency blocks; when the transmission of the first signal is within the first frequency block, the precoding of the first signal depends on the first SRS resource set; when the transmission of the first signal spans the multiple frequency blocks, the precoding of the first signal depends on the second SRS resource set.

[0334] The multiple frequency blocks belong to the same cell and are on different carriers; the first frequency block is one of the multiple frequency blocks.

[0335] As an example, the first signal applies one of a first transmission strategy and a second transmission strategy, wherein the first transmission strategy is one of codebook-based transmission and non-codebook-based transmission, and the second transmission strategy is the other of codebook-based transmission and non-codebook-based transmission.

[0336] When the transmission of the first signal is within the first frequency block, the first signal applies the first transmission strategy; when the transmission of the first signal spans the plurality of frequency blocks, the first signal applies the second transmission strategy.

[0337] As one embodiment, the plurality of frequency blocks includes a second frequency block; when the transmission of the first signal is within the second frequency block, the first signal applies the second transmission strategy.

[0338] As one embodiment, the plurality of frequency blocks includes a second frequency block; when the transmission of the first signal is within the second frequency block, the precoding of the first signal depends on the second SRS resource set.

[0339] As one embodiment, the first receiver A01 receives a first signaling; the first signaling includes a first field, which is a field indicating SRS resources;

[0340] The precoding of the first signal is determined at least based on the indication of the first field included in the first signaling, and the indication of the first field included in the first signaling depends on the SRS resource set on which the precoding of the first signal depends.

[0341] As an example, the number of bits in the first field included in the first signaling is equal to the maximum value among a plurality of values, one of which depends on the first SRS resource set, and another of which depends on the second SRS resource set.

[0342] As one embodiment, whether the first signaling includes a second field depends on the frequency domain resources indicated by the first signaling, wherein the second field is a field that at least indicates precoding information.

[0343] Example 11

[0344] Example 11 illustrates a structural block diagram of a processing apparatus for a second node according to an embodiment of this application; as shown in the appendix. Figure 11 As shown. In the appendix Figure 11 In the second node, the processing device B00 includes a second transmitter B01 and a second receiver B02.

[0345] As one embodiment, the second node includes a network-side device.

[0346] As one embodiment, the second node includes at least the former of base station equipment and core network equipment.

[0347] In one embodiment, the second node is a base station, satellite equipment, or a relay node.

[0348] As one embodiment, the second node is one of the testing device, testing equipment, or testing instrument.

[0349] As one embodiment, the second transmitter B01 includes the appendix to this application. Figure 4 The antenna 420, transmitter 418, multi-antenna transmission processor 471, transmission processor 416, controller / processor 475, and memory 476 are at least one of them.

[0350] As one embodiment, the second transmitter B01 includes the appendix to this application. Figure 4 The antenna 420, transmitter 418, multi-antenna transmission processor 471, transmission processor 416, controller / processor 475, and memory 476 are at least the first five of the following:

[0351] As one embodiment, the second transmitter B01 includes the appendix to this application. Figure 4 At least four of the following: antenna 420, transmitter 418, multi-antenna transmission processor 471, transmission processor 416, controller / processor 475, and memory 476.

[0352] As one embodiment, the second transmitter B01 includes the appendix to this application. Figure 4 At least three of the following: antenna 420, transmitter 418, multi-antenna transmission processor 471, transmission processor 416, controller / processor 475, and memory 476.

[0353] As one embodiment, the second transmitter B01 includes the appendix to this application. Figure 4 At least two of the following: antenna 420, transmitter 418, multi-antenna transmission processor 471, transmission processor 416, controller / processor 475, and memory 476.

[0354] As one embodiment, the second receiver B02 includes the appendix to this application. Figure 4 The antenna 420, receiver 418, multi-antenna receiver processor 472, receiver processor 470, controller / processor 475, and memory 476 are at least one of them.

[0355] As one embodiment, the second receiver B02 includes the appendix to this application. Figure 4 The antenna 420, receiver 418, multi-antenna receiver processor 472, receiver processor 470, controller / processor 475, and memory 476 are at least the first five of the following:

[0356] As one embodiment, the second receiver B02 includes the appendix to this application. Figure 4 At least four of the following: antenna 420, receiver 418, multi-antenna receiver processor 472, receiver processor 470, controller / processor 475, and memory 476.

[0357] As one embodiment, the second receiver B02 includes the appendix to this application. Figure 4At least three of the following: antenna 420, receiver 418, multi-antenna receiver processor 472, receiver processor 470, controller / processor 475, and memory 476.

[0358] As one embodiment, the second receiver B02 includes the appendix to this application. Figure 4 At least two of the following: antenna 420, receiver 418, multi-antenna receiver processor 472, receiver processor 470, controller / processor 475, and memory 476.

[0359] As one embodiment, the second receiver B02 receives a first signal; the precoding of the first signal depends on one of a first SRS resource set and a second SRS resource set, both of which are configured;

[0360] The SRS resource set on which the precoding of the first signal depends is related to whether the transmission of the first signal spans multiple frequency blocks; when the transmission of the first signal is within the first frequency block, the precoding of the first signal depends on the first SRS resource set; when the transmission of the first signal spans the multiple frequency blocks, the precoding of the first signal depends on the second SRS resource set.

[0361] The multiple frequency blocks belong to the same cell and are on different carriers; the first frequency block is one of the multiple frequency blocks.

[0362] As an example, the first signal applies one of a first transmission strategy and a second transmission strategy, wherein the first transmission strategy is one of codebook-based transmission and non-codebook-based transmission, and the second transmission strategy is the other of codebook-based transmission and non-codebook-based transmission.

[0363] When the transmission of the first signal is within the first frequency block, the first signal applies the first transmission strategy; when the transmission of the first signal spans the plurality of frequency blocks, the first signal applies the second transmission strategy.

[0364] As one embodiment, the plurality of frequency blocks includes a second frequency block; when the transmission of the first signal is within the second frequency block, the first signal applies the second transmission strategy.

[0365] As one embodiment, the plurality of frequency blocks includes a second frequency block; when the transmission of the first signal is within the second frequency block, the precoding of the first signal depends on the second SRS resource set.

[0366] As one embodiment, the second transmitter B01 transmits a first signaling; the first signaling includes a first field, which is a field indicating SRS resources;

[0367] The precoding of the first signal is determined at least based on the indication of the first field included in the first signaling, and the indication of the first field included in the first signaling depends on the SRS resource set on which the precoding of the first signal depends.

[0368] As an example, the number of bits in the first field included in the first signaling is equal to the maximum value among a plurality of values, one of which depends on the first SRS resource set, and another of which depends on the second SRS resource set.

[0369] As one embodiment, whether the first signaling includes a second field depends on the frequency domain resources indicated by the first signaling, wherein the second field is a field that at least indicates precoding information.

[0370] 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. Correspondingly, 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, wireless sensors, internet cards, IoT terminals, RFID terminals, NB-IoT terminals, MTC (Machine Type Communication) terminals, eMTC (enhanced MTC) terminals, data cards, internet cards, vehicle-mounted communication devices, low-cost mobile phones, low-cost tablets, and other wireless communication devices. The base station or system equipment in this application includes, but is not limited to, macrocell base stations, microcell base stations, home base stations, relay base stations, gNB (NR Node B), TRP (Transmitter Receiver Point), and other wireless communication equipment.

[0371] Those skilled in the art will understand that this application may be implemented 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 for wireless communication, characterized in that, include: A first transmitter transmits a first signal; the precoding of the first signal depends on one of a first SRS resource set and a second SRS resource set, both of which are configured. The SRS resource set on which the precoding of the first signal depends is related to whether the transmission of the first signal spans multiple frequency blocks; when the transmission of the first signal is within the first frequency block, the precoding of the first signal depends on the first SRS resource set; when the transmission of the first signal spans the multiple frequency blocks, the precoding of the first signal depends on the second SRS resource set. The multiple frequency blocks belong to the same cell and are on different carriers; the first frequency block is one of the multiple frequency blocks.

2. The first node according to claim 1, characterized in that, The first signal applies one of a first transmission strategy and a second transmission strategy, wherein the first transmission strategy is one of codebook-based transmission and non-codebook-based transmission, and the second transmission strategy is the other of codebook-based transmission and non-codebook-based transmission. When the transmission of the first signal is within the first frequency block, the first signal applies the first transmission strategy; when the transmission of the first signal spans the plurality of frequency blocks, the first signal applies the second transmission strategy.

3. The first node according to claim 2, characterized in that, The plurality of frequency blocks includes a second frequency block; when the transmission of the first signal is within the second frequency block, the first signal applies the second transmission strategy.

4. The first node according to any one of claims 1 to 3, characterized in that, The plurality of frequency blocks includes a second frequency block; when the transmission of the first signal is within the second frequency block, the precoding of the first signal depends on the second SRS resource set.

5. The first node according to any one of claims 1 to 4, characterized in that, include: A first receiver receives a first signaling message; the first signaling message includes a first field, which is a field indicating SRS resources; The precoding of the first signal is determined at least based on the indication of the first field included in the first signaling, and the indication of the first field included in the first signaling depends on the SRS resource set on which the precoding of the first signal depends.

6. The first node according to claim 5, characterized in that, The number of bits in the first field included in the first signaling is equal to the maximum value among a plurality of values, one of which depends on the first SRS resource set, and another of which depends on the second SRS resource set.

7. The first node according to claim 5 or 6, characterized in that, Whether the first signaling includes a second field depends on the frequency domain resources indicated by the first signaling, wherein the second field is a field that at least indicates precoding information.

8. A second node for wireless communication, characterized in that, include: The second receiver receives the first signal; the precoding of the first signal depends on one of a first SRS resource set and a second SRS resource set, both of which are configured. The SRS resource set on which the precoding of the first signal depends is related to whether the transmission of the first signal spans multiple frequency blocks; when the transmission of the first signal is within the first frequency block, the precoding of the first signal depends on the first SRS resource set; when the transmission of the first signal spans the multiple frequency blocks, the precoding of the first signal depends on the second SRS resource set. The multiple frequency blocks belong to the same cell and are on different carriers; the first frequency block is one of the multiple frequency blocks.

9. A method for a first node in wireless communication, characterized in that, include: Send a first signal; the precoding of the first signal depends on one of a first SRS resource set and a second SRS resource set, both of which are configured; The SRS resource set on which the precoding of the first signal depends is related to whether the transmission of the first signal spans multiple frequency blocks; when the transmission of the first signal is within the first frequency block, the precoding of the first signal depends on the first SRS resource set; when the transmission of the first signal spans the multiple frequency blocks, the precoding of the first signal depends on the second SRS resource set. The multiple frequency blocks belong to the same cell and are on different carriers; the first frequency block is one of the multiple frequency blocks.

10. A method for a second node in wireless communication, characterized in that, include: Receive a first signal; the precoding of the first signal depends on one of a first SRS resource set and a second SRS resource set, both of which are configured; The SRS resource set on which the precoding of the first signal depends is related to whether the transmission of the first signal spans multiple frequency blocks; when the transmission of the first signal is within the first frequency block, the precoding of the first signal depends on the first SRS resource set; when the transmission of the first signal spans the multiple frequency blocks, the precoding of the first signal depends on the second SRS resource set. The multiple frequency blocks belong to the same cell and are on different carriers; the first frequency block is one of the multiple frequency blocks.

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