Method and apparatus for use in node for wireless communication uplink timing

Abstract

Disclosed in the present application are a method and apparatus for use in a node for wireless communication uplink timing. The method comprises: a node receiving a first information block, wherein the first information block configures for a first cell an identifier of a first TAG and an identifier of a second TAG, the first TAG is associated with a first uplink TCI state, and the second TAG is associated with a second uplink TCI state; the first cell is not indicated with two control resource set pool identifiers; and only one of the first uplink TCI state and the second uplink TCI state is configured with a downlink path loss offset. By means of the present application, uplink synchronization in wireless communication is optimized, and uplink synchronization in an uplink / downlink asymmetric scenario is ensured on the basis that improvements to existing standards are reduced, thereby improving the overall performance.

Description

A method and device in a node used for uplink timing of wireless communication

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on March 27, 2024, with application number 202410363510.9 and application name “A method and device in a node used for uplink timing of wireless communication”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to a signal transmission method and apparatus in a wireless communication system, and in particular to an uplink timing method and apparatus. Background Art

[0003] Multi-antenna technology is a key technology in 3GPP (3rd Generation Partnership Project) LTE (Long-Term Evolution) and NR (New Radio) systems. It achieves additional spatial degrees of freedom by deploying multiple antennas at communication nodes, such as base stations or user equipment (UE). Multiple antennas use beamforming to form beams pointing in a specific direction, improving communication quality. When multiple antennas belong to multiple Transmitter Receiver Points (TRPs) / panels, additional diversity gain can be achieved by leveraging the spatial differences between different TRPs / panels. Deploying heterogeneous networks, in which a UE receives downlink (DL) transmissions from a gNB while sending uplink (UL) transmissions to the gNB or a non-co-located TRP / panel, is a key enhancement for improving uplink throughput. Furthermore, the TRP / panel receiving the UL transmissions can reduce or even disable DL transmissions to reduce energy consumption.

[0004] In December 2023, the RAN (Radio Access Network) #102 plenary meeting passed the WI (Work Item) of NR MIMO Phase 5. The RAN1 working group will at least enhance UL power control (PC) in the Rel-19 stage to support this UL / DL asymmetric deployment scenario; this includes configuring path loss offset for the UE to facilitate accurate calculation of the path loss associated with the UE and the TRP / panel; and supporting two closed-loop PC adjustment states of two SRS (Sounding Resource Signal) for gNB DL CSI (Channel State Information) acquisition and UL multi-TRP (multi-TRP) transmission. Summary of the Invention

[0005] In existing standards, to avoid transmission interference and ensure that uplink signals sent by all UEs served by a base station are aligned when they arrive at the base station, the base station sends a TA (Timing Advance) adjustment indication to the UE via (Medium Access Control) layer signaling. The UE determines the downlink timing based on the downlink signal from the base station and, combined with the TA adjustment indication sent by the base station, can accurately determine the actual uplink transmission timing. At the same time, the UE starts or restarts the TAT (Time Alignment Timer) corresponding to a TAG (Timing Advance Group), thereby helping the MAC entity determine how long to consider the TAG associated with the serving cell to be aligned in uplink timing. Cells with the same timing advance and using the same timing reference are grouped into a TAG, and each TAG includes at least one serving cell configured for uplink transmission. In the Release-17 standard discussion, a serving cell can be configured with two TAGs, each corresponding to two TATs, thereby supporting scenarios with multiple downlink TRPs.

[0006] In UL / DL asymmetric scenarios, UE uplink transmission may correspond to different beams / TRPs / panels, and different beams / TRPs / panels may correspond to different TAs. How to support different TAs in a serving cell and interpret the corresponding TATs are issues that need to be addressed.

[0007] In response to the above problems, the present application discloses a solution. It should be noted that, in the description of the above problem, the NR (New Radio) system is used as an example. The present application is also applicable to scenarios such as the future 6G system, and achieves technical effects similar to the NR system. Furthermore, although the original intention of the present application is for UL / DL asymmetric, cellular network, uplink transmission, multi-beam / TRP / panel scenarios, the present application can also be applied to other non-UL / DL asymmetric scenarios. Furthermore, for different scenarios (such as other non-UL / DL asymmetric scenarios, including but not limited to sidelink transmission, downlink transmission, single beam / TRP / panel, RIS (Reconfigurable Intelligent Surface), Vehicle to Everything (V2X), NCR (Network Control Repeater) capacity enhancement system, short-range communication system, NTN (Non Terrestrial Network), IoT (Internet of Things), URLLC (Ultra Reliable Low Latency The use of a unified design for robust communication (ultra-robust low-latency communication) networks, etc., also helps reduce hardware complexity and costs. Unless there is a conflict, the embodiments and features of any node in this application can be applied to any other node. Unless there is a conflict, the embodiments and features of the embodiments in this application can be combined in any way.

[0008] In particular, for the interpretation of terminology, nouns, functions, and variables in this application (unless otherwise specified), reference may be made to the definitions in the TS38 series and TS37 series of the technical specifications (TS) of the 3GPP (the 3rd Generation Partnership Project). If necessary, reference may be made to TS38.211, TS38.212, TS38.213, TS38.214, TS38.215, TS38.300, TS38.304, TS38.305, TS38.321, TS38.331, TS37.355, and TS38.423 in the 3GPP technical standards to assist in understanding this application.

[0009] As an example, the interpretation of the terms in this application refers to the definitions of the 3GPP specification protocol TS38 series.

[0010] As an example, the interpretation of the terms in this application refers to the definitions of the TS37 series of specification protocols of 3GPP.

[0011] As an example, the interpretation of the terms in this application refers to the definitions of the TS40 series of specification protocols of 3GPP.

[0012] As an example, the interpretation of the terms in this application refers to the definitions in the TS39 series of specification protocols of 3GPP.

[0013] As an embodiment, the interpretation of the terms in this application refers to the definitions in the Rel-17 version of the 3GPP specification protocol.

[0014] As an example, the interpretation of the terms in this application refers to the definitions in the Rel-18 version of the 3GPP specification protocol.

[0015] As an example, the interpretation of the terms in this application refers to the definitions in the Rel-19 version of the 3GPP specification protocol.

[0016] As an example, the interpretation of the terms in this application refers to the definitions in the Rel-20 version of the 3GPP specification protocol.

[0017] The present application discloses a method in a first node for uplink synchronization of wireless communication, which includes:

[0018] receiving a first information block, where the first information block configures an identifier of a first TAG and an identifier of a second TAG for a first cell, where the first TAG is associated with a first uplink TCI state, and the second TAG is associated with a second uplink TCI state;

[0019] The first cell is not indicated with two control resource set pool identifiers; only one of the first uplink TCI state and the second uplink TCI state is configured with a downlink path loss offset.

[0020] As an embodiment, the problem to be solved by the present application includes: how to support two TAGs when a serving cell is not configured with two control resource set pools.

[0021] As an embodiment, the problem to be solved by the present application includes: uplink timing of the first node.

[0022] As an embodiment, the problem to be solved by the present application includes: how to address the problem of multiple uplink timings in a scenario with uplink and downlink asymmetry.

[0023] As an embodiment, the problems to be solved by this application include: the UE can send uplinks to the base station and to a remote TRP specifically used to receive uplinks, and then how to determine the two different uplink timings corresponding to the two links.

[0024] As an embodiment, the characteristics of the above method include: the existing base station that supports uplink and downlink asymmetric scenarios will not configure two CORESET Pools (Control Resource Set Pools) at the same time, and thus the two TAGs introduced for the two CORESET Pools can be applied to the uplink and downlink asymmetric scenarios, thereby reducing standard changes and facilitating implementation.

[0025] As an embodiment, the characteristics of the above method include: in this application, when the spatial parameters of the uplink signal transmitted by the first node are configured with a path loss offset, it means that the base station is configured with an uplink and downlink asymmetric scenario, and then configures two TAGs and two TATs to support the maintenance of two uplink timings.

[0026] According to one aspect of the present application, the above method is characterized in that it includes:

[0027] receiving target signaling, the target signaling indicating a target timing advance value;

[0028] The target signaling includes a target identifier, and the target identifier is used to indicate one of the first TAG and the second TAG.

[0029] As an embodiment, the characteristics of the above method include: explicitly indicating TAG to ensure the accuracy of TA adjustment.

[0030] As an embodiment, the characteristics of the above method include: while keeping the existing TAC (Timing Advance Command) structure unchanged, redefining the indication and interpretation of TAT to cope with the scenario of uplink and downlink asymmetry.

[0031] According to one aspect of the present application, the above method is characterized in that it includes:

[0032] In response to receiving the target signaling, starting or restarting a target TAT;

[0033] The first TAG and the second TAG are associated with a first TAT and a second TAT, respectively, and the target TAT is the TAT associated with the TAG indicated by the target identifier in the first TAT and the second TAT.

[0034] As an embodiment, the characteristics of the above method include: establishing a one-to-one correspondence between TAT and TAG to ensure the accuracy of uplink timing.

[0035] According to one aspect of the present application, the above method is characterized in that it includes:

[0036] receiving a first signaling;

[0037] Sending a first signal in a first time-frequency resource;

[0038] The first signaling indicates the first time-frequency resource; whether the first time-frequency resource includes the target timing advance value depends on the target identifier and the spatial parameters of the first signal.

[0039] As an embodiment, the characteristics of the above method include: redefining the wireless signal on which the TA is effective while continuing to use the number of bits of the TI in the existing TAC, thereby ensuring the accuracy of the uplink timing.

[0040] According to one aspect of the present application, the above method is characterized in that, when the target identifier corresponds to the first TAG and the spatial parameter of the first signal is the first uplink TCI state, or the target identifier corresponds to the second TAG and the spatial parameter of the first signal is the second uplink TCI state, the first time-frequency resource includes the effect of the target timing advance value; when the target identifier corresponds to the first TAG and the spatial parameter of the first signal is the second uplink TCI state, or the target identifier corresponds to the second TAG and the spatial parameter of the first signal is the first uplink TCI state, the first time-frequency resource does not include the effect of the target timing advance value.

[0041] According to one aspect of the present application, the above method is characterized in that the first uplink TCI state is configured with a downlink path loss offset between the first uplink TCI state and the second uplink TCI state; when the target identifier corresponds to the first TAG and the spatial parameter of the first signal is the second uplink TCI state, or the target identifier corresponds to the second TAG and the spatial parameter of the first signal is the first uplink TCI state, the first time-frequency resource does not include the effect of the target timing advance value; when the target identifier corresponds to the second TAG and the spatial parameter of the first signal is the second uplink TCI state, the first time-frequency resource includes the effect of the target timing advance value.

[0042] According to one aspect of the present application, the above method is characterized in that the first uplink TCI state of the first uplink TCI state and the second uplink TCI state is configured with a downlink path loss offset; the target identifier corresponds to the first TAG, and the spatial parameter of the first signal is the first uplink TCI state; when the downlink path loss offset is indicated to be enabled, the first time-frequency resource includes the effect of the target timing advance value; or, when the downlink path loss offset is not indicated to be enabled, the first time-frequency resource does not include the effect of the target timing advance value.

[0043] As an embodiment, the characteristics of the above method include: implicitly determining whether the timing advance indicated in the uplink and downlink asymmetric scenario is effective by determining whether the uplink TCI status includes a path loss offset, thereby distinguishing the timing advance values ​​used by different uplink receiving points.

[0044] As an embodiment, the characteristics of the above method include: the uplink transmission of the first node can be flexibly switched between the base station and the UL TRP without the need for high-level reconfiguration, thereby ensuring the flexibility of scheduling and transmission.

[0045] According to one aspect of the present application, the above method is characterized in that the first node is a user equipment.

[0046] According to one aspect of the present application, the above method is characterized in that the first node is a relay node.

[0047] The present application discloses a method in a second node for uplink synchronization of wireless communication, which includes:

[0048] Sending a first information block, where the first information block configures an identifier of a first TAG and an identifier of a second TAG for the first cell, where the first TAG is associated with a first uplink TCI state, and the second TAG is associated with a second uplink TCI state;

[0049] The first cell is not indicated with two control resource set pool identifiers; only one of the first uplink TCI state and the second uplink TCI state is configured with a downlink path loss offset.

[0050] According to one aspect of the present application, the above method is characterized in that it includes:

[0051] sending target signaling, where the target signaling indicates a target timing advance value;

[0052] The target signaling includes a target identifier, and the target identifier is used to indicate one of the first TAG and the second TAG.

[0053] According to one aspect of the present application, the above method is characterized in that it includes:

[0054] Sending a first signaling;

[0055] Receiving a first signal in a first time-frequency resource;

[0056] The first signaling indicates the first time-frequency resource; whether the first time-frequency resource includes the target timing advance value depends on the target identifier and the spatial parameters of the first signal.

[0057] According to one aspect of the present application, the above method is characterized in that, when the target identifier corresponds to the first TAG and the spatial parameter of the first signal is the first uplink TCI state, or the target identifier corresponds to the second TAG and the spatial parameter of the first signal is the second uplink TCI state, the first time-frequency resource includes the effect of the target timing advance value; when the target identifier corresponds to the first TAG and the spatial parameter of the first signal is the second uplink TCI state, or the target identifier corresponds to the second TAG and the spatial parameter of the first signal is the first uplink TCI state, the first time-frequency resource does not include the effect of the target timing advance value.

[0058] According to one aspect of the present application, the above method is characterized in that the first uplink TCI state is configured with a downlink path loss offset between the first uplink TCI state and the second uplink TCI state; when the target identifier corresponds to the first TAG and the spatial parameter of the first signal is the second uplink TCI state, or the target identifier corresponds to the second TAG and the spatial parameter of the first signal is the first uplink TCI state, the first time-frequency resource does not include the effect of the target timing advance value; when the target identifier corresponds to the second TAG and the spatial parameter of the first signal is the second uplink TCI state, the first time-frequency resource includes the effect of the target timing advance value.

[0059] According to one aspect of the present application, the above method is characterized in that the first uplink TCI state of the first uplink TCI state and the second uplink TCI state is configured with a downlink path loss offset; the target identifier corresponds to the first TAG, and the spatial parameter of the first signal is the first uplink TCI state; when the downlink path loss offset is indicated to be enabled, the first time-frequency resource includes the effect of the target timing advance value; or, when the downlink path loss offset is not indicated to be enabled, the first time-frequency resource does not include the effect of the target timing advance value.

[0060] According to one aspect of the present application, the above method is characterized in that the second node is a base station.

[0061] According to one aspect of the present application, the above method is characterized in that the second node is a user equipment.

[0062] According to one aspect of the present application, the above method is characterized in that the second node is a relay node.

[0063] The present application discloses a device for a first node used for uplink synchronization of wireless communication, comprising:

[0064] A first receiver receives a first information block, where the first information block configures an identifier of a first TAG and an identifier of a second TAG for a first cell, where the first TAG is associated with a first uplink TCI state, and the second TAG is associated with a second uplink TCI state;

[0065] The first cell is not indicated with two control resource set pool identifiers; only one of the first uplink TCI state and the second uplink TCI state is configured with a downlink path loss offset.

[0066] The present application discloses a device for a second node used for uplink synchronization of wireless communication, comprising:

[0067] A first transmitter sends a first information block, where the first information block configures an identifier of a first TAG and an identifier of a second TAG for a first cell, where the first TAG is associated with a first uplink TCI state, and the second TAG is associated with a second uplink TCI state;

[0068] The first cell is not indicated with two control resource set pool identifiers; only one of the first uplink TCI state and the second uplink TCI state is configured with a downlink path loss offset.

[0069] As an embodiment, compared with the traditional solution, the present application has the following advantages but not limited to:

[0070] This application supports uplink multi-beam / TRP / panel transmission based on different timing advance values, improving uplink transmission performance;

[0071] This application maintains the number of bits of the TI in the existing TAC unchanged and only redefines the interpretation of the TI in different scenarios, reducing standard modifications and ensuring uplink performance;

[0072] This application supports UE to dynamically change the receiving point of uplink transmission, avoiding high-level signaling reconfiguration and facilitating implementation. BRIEF DESCRIPTION OF THE DRAWINGS

[0073] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0074] FIG1 shows a flow chart of first node transmission according to an embodiment of the present application;

[0075] FIG2 shows a schematic diagram of a network architecture according to an embodiment of the present application;

[0076] FIG3 is a schematic diagram showing an embodiment of a radio protocol architecture of a user plane and a control plane according to an embodiment of the present application;

[0077] FIG4 shows a schematic diagram of a first communication device and a second communication device according to an embodiment of the present application;

[0078] FIG5 shows a flow chart of transmission between a first node and a second node according to an embodiment of the present application;

[0079] FIG6 shows a flow chart of transmission between a first node and a second node according to an embodiment of the present application;

[0080] FIG7 shows a flow chart of transmission between a first node and a second node according to an embodiment of the present application;

[0081] FIG8 shows a schematic diagram of an embodiment according to an application scenario of the present application;

[0082] FIG9 is a schematic diagram showing an embodiment of a TAG configuration according to the present application;

[0083] FIG10 shows a structural block diagram of a processing device used in a first node according to an embodiment of the present application;

[0084] FIG11 shows a structural block diagram of a processing device used in a second node according to an embodiment of the present application. DETAILED DESCRIPTION

[0085] The technical solution of the present application will be further described in detail below in conjunction with the accompanying drawings. It should be noted that, unless there is a conflict, the embodiments and features in the embodiments of the present application can be combined with each other in any way.

[0086] Example 1

[0087] Example 1 illustrates a flowchart of a first node transmission according to an embodiment of the present application, as shown in FIG1 . In FIG1 , each box represents a step. In particular, the order of the steps in the boxes does not represent a specific temporal relationship between the steps.

[0088] In step 101, the first node receives a first information block, which configures a first TAG identifier and a second TAG identifier for a first cell. The first TAG is associated with a first uplink TCI state, and the second TAG is associated with a second uplink TCI state.

[0089] In embodiment 1, the first cell is not indicated with two control resource set pool identifiers; only one of the first uplink TCI state and the second uplink TCI state is configured with a downlink path loss offset.

[0090] As an embodiment, the first information block includes RRC signaling.

[0091] As an embodiment, the first information block includes one or more RRC IEs.

[0092] As an embodiment, the first information block includes one or more fields in an RRC IE.

[0093] As an embodiment, the first information block includes IE ServingCellConfig.

[0094] As an embodiment, the first information block includes IE TAG-Config.

[0095] As an embodiment, the first information block includes IE n-TimingAdvanceOffset.

[0096] As an embodiment, the name of the first information block includes TAG.

[0097] As an embodiment, the name of the first information block includes TAT.

[0098] As an embodiment, the name of the first information block includes ta.

[0099] As an embodiment, the name of the first information block includes Common.

[0100] As an embodiment, the first cell is a serving cell.

[0101] As an embodiment, the first cell is a Cell.

[0102] As an embodiment, the first cell is a SpCell.

[0103] As an embodiment, the first information block indicates the identifier of the first TAG and the identifier of the second TAG for the first cell.

[0104] As a sub-embodiment of this embodiment, the identifier of the first TAG is a non-negative integer.

[0105] As a sub-embodiment of this embodiment, the identifier of the first TAG is a TAG-ID.

[0106] As a sub-embodiment of this embodiment, the identifier of the second TAG is a non-negative integer.

[0107] As a sub-embodiment of this embodiment, the identifier of the second TAG is a TAG-ID.

[0108] As an embodiment, the first TAG is indicated to be associated with the first uplink TCI state.

[0109] As an embodiment, the first uplink TCI state is indicated to be associated with the first TAG.

[0110] As an embodiment, the first TAG is associated with a first uplink TCI state set, and the first uplink TCI state set includes the first uplink TCI state.

[0111] As an embodiment, the second TAG is indicated to be associated with the second uplink TCI state.

[0112] As an embodiment, the second uplink TCI state is indicated to be associated with the second TAG.

[0113] As an embodiment, the second TAG is associated with a second uplink TCI state set, and the second uplink TCI state set includes the second uplink TCI state.

[0114] As an embodiment, the first uplink TCI state is associated with an SRS resource.

[0115] As an embodiment, the first uplink TCI state is associated with an SRS resource set.

[0116] As an embodiment, the first uplink TCI state is associated with at least one SRS resource.

[0117] As an embodiment, the first uplink TCI state is associated with at least one SRS resource set.

[0118] As an embodiment, the first uplink TCI state is associated with two SRS resources.

[0119] As an embodiment, the first uplink TCI state is associated with two SRS resource sets.

[0120] As an embodiment, the first uplink TCI state is associated with a TCI Codepoint.

[0121] As an embodiment, the second uplink TCI state is associated with an SRS resource.

[0122] As an embodiment, the second uplink TCI state is associated with an SRS resource set.

[0123] As an embodiment, the second uplink TCI state is associated with at least one SRS resource.

[0124] As an embodiment, the second uplink TCI state is associated with at least one SRS resource set.

[0125] As an embodiment, the second uplink TCI state is associated with a TCI Codepoint.

[0126] As an embodiment, the first uplink TCI state and the second uplink TCI state are both associated with one TCI Codepoint.

[0127] As an embodiment, the meaning that the first cell is not indicated with two control resource set pool identifiers includes: the first cell is not configured with two control resource set pool identifiers.

[0128] As an embodiment, the fact that the first cell is not indicated with two control resource set pool identifiers includes: the first cell does not support two control resource set pools.

[0129] As an embodiment, the meaning that the first cell is not indicated with two control resource pool identifiers includes: the RRC signaling transmitted by the first cell does not indicate two control resource pool identifiers.

[0130] As an embodiment, the meaning that the first cell is not indicated with two control resource pool identifiers includes: the RRC signaling received by the terminal under the coverage of the first cell does not indicate two control resource pool identifiers.

[0131] As an embodiment, the first uplink TCI state of the first uplink TCI state and the second uplink TCI state is configured with a downlink path loss offset.

[0132] As an embodiment, the second uplink TCI state of the first uplink TCI state and the second uplink TCI state is configured with a downlink path loss offset.

[0133] As a sub-embodiment of the above two embodiments, the first uplink TCI state is further configured with a reference downlink reference signal resource.

[0134] As a sub-embodiment of the above two embodiments, the second uplink TCI state is further configured with a reference downlink reference signal resource.

[0135] As an embodiment, the first information block configures the first TAG identifier and the second TAG identifier for the first cell depending on whether the first cell is configured with at least one uplink TCI state including a downlink path loss offset.

[0136] As an embodiment, when the first cell is configured with at least one uplink TCI state including a downlink path loss offset and the first cell is not indicated with two control resource set pool identifiers, the first information block configures the identifier of the first TAG and the identifier of the second TAG for the first cell.

[0137] As an embodiment, when the first cell is not configured with an uplink TCI state including a downlink path loss offset, the first information block only configures the identifier of the first TAG for the first cell.

[0138] As an embodiment, the first information block configures the first N for the first cell. TA,offset and the second N TA,offset .

[0139] As an embodiment, the first TAG and the second TAG use the same downlink timing reference.

[0140] As an embodiment, the first TAG and the second TAG use different downlink timing references.

[0141] As an embodiment, the unit of the downlink path loss offset is dB.

[0142] As an embodiment, the downlink path loss offset is used to determine a transmit power value of an uplink signal.

[0143] Example 2

[0144] Example 2 illustrates a schematic diagram of a network architecture according to an embodiment of the present application, as shown in Figure 2.

[0145] FIG2 illustrates a network architecture 200. Network architecture 200 is the network architecture for LTE (Long-Term Evolution), LTE-A (Long-Term Evolution Advanced), 5G systems, 5G-Advanced, and future 6G systems. The network architecture for LTE, LTE-A, 5G systems, 5G-Advanced, and future 6G systems is referred to as EPS (Evolved Packet System). The 5G NR or LTE network architecture may be referred to as 5GS (5G System) / EPS or some other suitable terminology; the 6G network architecture may be referred to as 6GS (6G System) / EPS or some other suitable terminology. Network architecture 200 may include one or more UEs 201, a Next Generation Radio Access Network (RAN) 202, a core network 210, a Home Subscriber Server (HSS) / Unified Data Management (UDM) 220, and Internet services 230. The network architecture 200 can interconnect with other access networks, but for simplicity these entities / interfaces are not shown. As shown in FIG2 , the network architecture 200 provides packet-switched services, however, those skilled in the art will readily appreciate that the various concepts presented throughout this application can be extended to networks providing circuit-switched services. The RAN 202 includes a Node B 203 and other nodes 204. Node 203 provides user and control plane protocol termination towards the UE 201. Node 203 can be connected to the other nodes 204 via an Xn interface (e.g., backhaul). Node 203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a Transmitter Receiver Point (TRP), or some other appropriate terminology. Node 203 provides an access point to the core network 210 for UE 201; the core network 210 is 5GC (5G Core Network) / EPC (Evolved Packet Core), or the core network 210 is 6GC.Examples of UE 201 include a cellular phone, a smartphone, a Session Initiation Protocol (SIP) phone, a laptop computer, a personal digital assistant (PDA), a satellite radio, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., an MP3 player), a camera, a game console, a drone, an aircraft, a narrowband physical network device, a machine type communication device, a land vehicle, an automobile, a wearable device, or any other similarly functional device. Those skilled in the art may also refer to UE 201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable term. Node 203 is connected to core network 210 via an S1 / NG interface. The core network 210 includes the MME (Mobility Management Entity) / AMF (Authentication Management Field) / SMF (Session Management Function) 211, other MMEs / AMFs / SMFs 214, the S-GW (Service Gateway) / UPF (User Plane Function) 212, and the P-GW (Packet Data Network Gateway) / UPF 213. The MME / AMF / SMF 211 is the control node that handles signaling between the UE 201 and the 5G-CN / EPC 210. Generally, the MME / AMF / SMF 211 provides bearer and connection management. All user Internet Protocol (IP) packets are transmitted through the S-GW / UPF 212, which is itself connected to the P-GW / UPF 213. The P-GW provides UE IP address allocation and other functions. The P-GW / UPF 213 is connected to the Internet service 230. The Internet service 230 includes operator-specific Internet protocol services, which may include the Internet, intranet, IMS (IP Multimedia Subsystem), and packet switching services.

[0146] As an embodiment, the first node in the present application includes the UE 201.

[0147] As an embodiment, the second node in this application includes the node 203.

[0148] As an embodiment, the node 203 is a macro cell base station.

[0149] As an embodiment, the node 203 is a micro cell base station.

[0150] As an embodiment, the node 203 is a pico cell base station.

[0151] As an embodiment, the node 203 is a home base station (Femtocell).

[0152] As an embodiment, the node 203 is a base station device that supports a large delay difference.

[0153] As an embodiment, the node 203 is a flying platform device.

[0154] As an embodiment, the node 203 is a satellite device.

[0155] As an embodiment, the node 203 is a test device (eg, a transceiver that simulates some functions of a base station, a signaling tester).

[0156] As an embodiment, the UE 201 includes a mobile phone.

[0157] As an embodiment, the UE 201 is a vehicle including a car.

[0158] As an embodiment, the wireless link from the UE 201 to the node 203 is an uplink, and the uplink is used to perform uplink transmission.

[0159] As an embodiment, the wireless link from the node 203 to the UE 201 is a downlink, and the downlink is used to perform downlink transmission.

[0160] As an embodiment, the wireless link between the node 203 and the UE 201 includes a cellular network link.

[0161] As an embodiment, the node 203 and the UE 201 are connected via a Uu air interface.

[0162] As an embodiment, the sender of the first information block includes the node 203.

[0163] As an embodiment, the receiver of the first information block includes the UE 201.

[0164] As an embodiment, the sender of the target signaling includes the node 203.

[0165] As an embodiment, the recipient of the target signaling includes the UE 201.

[0166] As an embodiment, the sender of the first signaling includes the node 203.

[0167] As an embodiment, the recipient of the first signaling includes the UE 201.

[0168] As an embodiment, the receiver of the first signal includes the node 203.

[0169] As an embodiment, the sender of the first signal includes the UE 201.

[0170] As an embodiment, the UE 201 supports UL / DL asymmetric.

[0171] As an embodiment, the UE 201 supports multi-panel / TRP transmission based on multi-TA.

[0172] As an embodiment, the UE 201 supports configuring two CORESET Pools.

[0173] As an embodiment, the UE 201 supports a 5G system.

[0174] As an embodiment, the node 203 supports a 5G system.

[0175] As an embodiment, the UE 201 supports at least the 6G system.

[0176] As an embodiment, the node 203 supports at least a 6G system.

[0177] Example 3

[0178] Embodiment 3 illustrates a schematic diagram of an embodiment of a wireless protocol architecture of a user plane and a control plane according to an embodiment of the present application, as shown in FIG3 .

[0179] FIG3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300. FIG3 illustrates the radio protocol architecture for a first communication node device (a UE or RSU (Road Side Unit) in a V2X (Vehicle to Everything) network, a vehicle-mounted device, or a vehicle-mounted communication module) and a second node device (a gNB, a UE or RSU in a V2X network, a vehicle-mounted device, or a vehicle-mounted communication module), or the control plane 300 between two UEs using three layers: Layer 1 (L1), Layer 2 (L2), and Layer 3 (L3). L1 is the lowest layer and implements various PHY (Physical Layer) signal processing functions. L1 will be referred to herein as PHY 301. L2 305, located above PHY 301, is responsible for the link between the first and second node devices, or between two UEs, through PHY 301. L2 305 includes the MAC (Medium Access Control) sublayer 302, the RLC (Radio Link Control) sublayer 303, and the PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the second node device. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by encrypting data packets and supports handover of the first communication node device between the second communication node devices. The RLC sublayer 303 provides segmentation and reassembly of upper layer data packets, retransmission of lost data packets, and reordering of data packets to compensate for out-of-order reception due to HARQ (Hybrid Automatic Repeat reQuest). The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in a cell between the first communication node devices. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in L3 in the control plane 300 is responsible for obtaining radio resources (ie, radio bearers) and configuring lower layers using RRC signaling between the second communication node device and the first communication node device.The radio protocol architecture of the user plane 350 includes Layer 1 (L1) and Layer 2 (L2). The radio protocol architecture for the first and second communication node devices in the user plane 350 is substantially identical to the corresponding layers and sublayers in the control plane 300, including the physical layer 351, the PDCP sublayer 354 in Layer 2 355, the RLC sublayer 353 in Layer 2 355, and the MAC sublayer 352 in Layer 2 355. However, the PDCP sublayer 354 also provides header compression for upper layer packets to reduce radio transmission overhead. Layer 2 355 in the user plane 350 also includes the SDAP (Service Data Adaptation Protocol) sublayer 356, which is responsible for mapping QoS (Quality of Service) flows to data radio bearers (DRBs) to support service diversity. Although not shown, the first communication node device may have several upper layers above L2 355, including a network layer (e.g., an IP (Internet Protocol) layer) terminated at the P-GW on the network side and an application layer terminated at the other end of the connection (e.g., a remote UE, a server, etc.).

[0180] As an embodiment, the wireless protocol architecture in FIG3 is applicable to the first node in this application.

[0181] As an embodiment, the wireless protocol architecture in FIG3 is applicable to the second node in this application.

[0182] As an embodiment, the first information block is generated in the RRC 306.

[0183] As an embodiment, the target signaling is generated by the MAC 302 or MAC 352.

[0184] As an embodiment, the first signaling is generated by the PHY 301 or PHY 351.

[0185] As an embodiment, the first signaling is generated by the MAC 302 or MAC 352.

[0186] As an embodiment, the first signaling is generated in the RRC 306.

[0187] As an embodiment, the first signal is generated by the PHY 301 or PHY 351 .

[0188] As an embodiment, the first signal is generated by the MAC 302 or MAC 352.

[0189] As an embodiment, the first TAT in this application is controlled at the MAC layer.

[0190] As an embodiment, the second TAT in this application is controlled at the MAC layer.

[0191] Example 4

[0192] Embodiment 4 illustrates a schematic diagram of a first communication device and a second communication device according to an embodiment of the present application, as shown in Figure 4. Figure 4 is a block diagram of a first communication device 410 and a second communication device 450 communicating with each other in an access network.

[0193] The first communications device 410 includes a controller / processor 475 , a memory 476 , a receive processor 470 , a transmit processor 416 , a multi-antenna receive processor 472 , a multi-antenna transmit processor 471 , a transmitter / receiver 418 , and an antenna 420 .

[0194] The second communication device 450 includes a controller / processor 459 , a memory 460 , a data source 467 , a transmit processor 468 , a receive processor 456 , a multi-antenna transmit processor 457 , a multi-antenna receive processor 458 , a transmitter / receiver 454 and an antenna 452 .

[0195] In transmission from the first communications device 410 to the second communications device 450, at the first communications device 410, upper layer data packets from the core network are provided to the controller / processor 475. The controller / processor 475 implements L2 functionality. In the DL, the controller / processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and allocation of radio resources to the second communications device 450 based on various priority metrics. The controller / processor 475 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the second communications device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the L1 (i.e., physical layer). The transmit processor 416 performs coding and interleaving to facilitate forward error correction (FEC) at the second communications device 450, as well as mapping of signal constellations based on various modulation schemes (e.g., binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), M-ary phase shift keying (M-PSK), and M-quadrature amplitude modulation (M-QAM)). The multi-antenna transmit processor 471 performs digital spatial precoding on the coded and modulated symbols, including codebook-based and non-codebook-based precoding and beamforming, to generate one or more parallel streams. The transmit processor 416 then maps each parallel stream to a subcarrier, multiplexes the modulated symbols with a reference signal (e.g., a pilot) in the time and / or frequency domain, and then uses an inverse fast Fourier transform (IFFT) to generate a physical channel carrying the time-domain multi-carrier symbol stream. The multi-antenna transmit processor 471 then performs transmit analog precoding / beamforming operations on the time-domain multi-carrier symbol stream. Each transmitter 418 converts the baseband multi-carrier symbol stream provided by the multi-antenna transmit processor 471 into a radio frequency stream, which is then provided to a different antenna 420.

[0196] During transmission from the first communication device 410 to the second communication device 450, at the second communication device 450, each receiver 454 receives a signal via its corresponding antenna 452. Each receiver 454 recovers the information modulated onto the RF carrier and converts the RF stream into a baseband multi-carrier symbol stream, which is provided to the receive processor 456. The receive processor 456 and the multi-antenna receive processor 458 implement various L1 signal processing functions. The multi-antenna receive processor 458 performs receive analog precoding / beamforming operations on the baseband multi-carrier symbol stream from the receiver 454. The receive processor 456 converts the baseband multi-carrier symbol stream after the receive analog precoding / beamforming operations from the time domain to the frequency domain using a Fast Fourier Transform (FFT). In the frequency domain, the physical layer data signal and reference signal are demultiplexed by the receive processor 456, where the reference signal is used for channel estimation. The data signal is recovered in the multi-antenna receive processor 458 after multi-antenna detection to any parallel stream destined for the second communication device 450. The symbols on each parallel stream are demodulated and recovered in the receive processor 456, and soft decisions are generated. The receive processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals transmitted by the first communication device 410 on the physical channel. The upper layer data and control signals are then provided to the controller / processor 459. The controller / processor 459 implements L2 functionality. The controller / processor 459 may be associated with a memory 460 that stores program code and data. The memory 460 may be referred to as a computer-readable medium. In the DL, the controller / processor 459 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover upper layer data packets from the core network. The upper layer data packets are then provided to all protocol layers above L2. Various control signals may also be provided to L3 for L3 processing. The controller / processor 459 is also responsible for error detection using acknowledgment (ACK) and / or negative acknowledgment (NACK) protocols to support HARQ operations.

[0197] During transmission from the second communications device 450 to the first communications device 410, at the second communications 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 L2. Similar to the transmit functionality at the first communications device 410 described in the DL, the controller / processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on the radio resource allocation of the first communications device 410, implementing L2 functionality for both the user plane and the control plane. The controller / processor 459 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the first communications device 410. The transmit processor 468 performs modulation mapping and channel coding, while the multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based and non-codebook-based precoding, and beamforming. The transmit processor 468 then modulates the resulting parallel streams into multi-carrier / single-carrier symbol streams. After analog precoding and beamforming operations in the multi-antenna transmit processor 457, these streams are provided to different antennas 452 via the transmitter 454. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a RF symbol stream before providing it to the antenna 452.

[0198] During transmission from the second communication device 450 to the first communication device 410, the functionality at the first communication device 410 is similar to the reception functionality at the second communication device 450 described for transmission from the first communication device 410 to the second communication device 450. Each receiver 418 receives RF signals via its corresponding antenna 420, converts the received RF signals into baseband signals, and provides the baseband signals to the multi-antenna receive processor 472 and the receive processor 470. The receive processor 470 and the multi-antenna receive processor 472 collectively implement L1 functionality. The controller / processor 475 implements L2 functionality. The controller / processor 475 may be associated with a memory 476 storing program code and data. The memory 476 may be referred to as a computer-readable medium. The controller / processor 475 provides demultiplexing between transmit and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover upper layer data packets from the second communication device 450. The upper layer data packets from the controller / processor 475 may be provided to the core network. The controller / processor 475 is also responsible for error detection using an ACK and / or NACK protocol to support HARQ operations.

[0199] As an embodiment, the second communication device 450 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor. The second communication device 450 apparatus receives at least a first information block, wherein the first information block configures a first TAG identifier and a second TAG identifier for a first cell, the first TAG is associated with a first uplink TCI state, and the second TAG is associated with a second uplink TCI state; the first cell is not indicated with two control resource set pool identifiers; and only one of the first uplink TCI state and the second uplink TCI state is configured with a downlink path loss offset.

[0200] As an embodiment, the second communication device 450 includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generating an action when executed by at least one processor, the action including: receiving a first information block, the first information block configuring a first TAG identifier and a second TAG identifier for a first cell, the first TAG being associated with a first uplink TCI state, the second TAG being associated with a second uplink TCI state; the first cell is not indicated with two control resource set pool identifiers; only one of the first uplink TCI state and the second uplink TCI state is configured with a downlink path loss offset.

[0201] As an embodiment, the first communication device 410 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor. The first communication device 410 device at least sends a first information block, wherein the first information block configures a first TAG identifier and a second TAG identifier for a first cell, the first TAG is associated with a first uplink TCI state, and the second TAG is associated with a second uplink TCI state; the first cell is not indicated with two control resource set pool identifiers; and only one of the first uplink TCI state and the second uplink TCI state is configured with a downlink path loss offset.

[0202] As an embodiment, the first communication device 410 includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generating an action when executed by at least one processor, the action including: sending a first information block, the first information block configuring a first TAG identifier and a second TAG identifier for the first cell, the first TAG being associated with a first uplink TCI state, and the second TAG being associated with a second uplink TCI state; the first cell is not indicated with two control resource set pool identifiers; only one of the first uplink TCI state and the second uplink TCI state is configured with a downlink path loss offset.

[0203] As an embodiment, the first node in this application includes the second communication device 450.

[0204] As an embodiment, the second node in this application includes the first communication device 410.

[0205] As an embodiment, at least one of {the antenna 420, the transmitter 418, the transmit processor 416, the multi-antenna transmit processor 471, the controller / processor 475, and the memory 476} is used to send a first information block; and at least one of {the antenna 452, the receiver 454, the receive processor 456, the multi-antenna receive processor 458, the controller / processor 459, the memory 460, and the data source 467} is used to receive a first information block.

[0206] As an embodiment, at least one of {the antenna 420, the transmitter 418, the transmit processor 416, the multi-antenna transmit processor 471, the controller / processor 475, and the memory 476} is used to send target signaling; and at least one of {the antenna 452, the receiver 454, the receive processor 456, the multi-antenna receive processor 458, the controller / processor 459, the memory 460, and the data source 467} is used to receive target signaling.

[0207] As an embodiment, at least one of {the antenna 452, the transmitter 454, the transmit processor 468, the multi-antenna transmit processor 457, the controller / processor 459, the memory 460, the data source 467} is used to start or restart the target TAT in response to receiving the target signaling.

[0208] As an embodiment, at least one of {the antenna 420, the transmitter 418, the transmit processor 416, the multi-antenna transmit processor 471, the controller / processor 475, and the memory 476} is used to send the first signaling; and at least one of {the antenna 452, the receiver 454, the receive processor 456, the multi-antenna receive processor 458, the controller / processor 459, the memory 460, and the data source 467} is used to receive the first signaling.

[0209] As an embodiment, at least one of {the antenna 452, the transmitter 454, the transmit processor 468, the multi-antenna transmit processor 457, the controller / processor 459, the memory 460, and the data source 467} is used to send a first signal; and at least one of {the antenna 420, the receiver 418, the receive processor 470, the multi-antenna receive processor 472, the controller / processor 475, and the memory 476} is used to receive a first signal.

[0210] Example 5

[0211] Example 5 illustrates a first flowchart of transmission between a first node and a second node according to an embodiment of the present application. In FIG5 , the first node U1 and the second node N2 communicate via a wireless link. It should be noted that the sequence in this example does not limit the order of signal transmission and implementation in this application.

[0212] For the first node U1, a first information block is received in step S510.

[0213] For the second node N2, a first information block is sent in step S520.

[0214] In Example 5, the first information block configures the identifier of the first TAG and the identifier of the second TAG for the first cell, the first TAG is associated with the first uplink TCI state, and the second TAG is associated with the second uplink TCI state; the first cell is not indicated with two control resource set pool identifiers; only one of the first uplink TCI state and the second uplink TCI state is configured with a downlink path loss offset.

[0215] As an embodiment, the first node U1 is the first node in this application.

[0216] As an embodiment, the second node N2 is the second node in this application.

[0217] Example 6

[0218] Example 6 illustrates a first flowchart of transmission between a first node and a second node according to an embodiment of the present application. In FIG6 , the first node U3 and the second node N4 communicate via a wireless link. It should be noted that the sequence in this example does not limit the order of signal transmission and implementation in this application.

[0219] For the first node U3, the target signaling is received in step S530; in step S531, the target TAT is started or restarted in response to receiving the target signaling.

[0220] For the second node N4, target signaling is sent in step S540.

[0221] In embodiment 6, the target signaling indicates a target timing advance value; the target signaling includes a target identifier, and the target identifier is used to indicate one of the first TAG and the second TAG; the first TAG and the second TAG are associated with a first TAT and a second TAT, respectively, and the target TAT is the TAT associated with the TAG indicated by the target identifier in the first TAT and the second TAT.

[0222] As an embodiment, the target signaling includes MAC CE.

[0223] As an embodiment, the target signaling includes Timing Advance Command MAC CE.

[0224] As an embodiment, the target signaling includes Absolute Timing Advance Command MAC CE.

[0225] As an embodiment, the target signaling includes Timing advance offset MAC CE.

[0226] As an embodiment, the name of the MAC CE carrying the target signaling includes Timing.

[0227] As an embodiment, the name of the MAC CE carrying the target signaling includes Advance.

[0228] As an embodiment, the target signaling includes DCI.

[0229] As an embodiment, the unit of the target timing advance value is milliseconds.

[0230] As an embodiment, the unit of the target timing advance value is microseconds.

[0231] As an embodiment, the target signaling indicates a first integer, and the first integer is used to determine the target timing advance value.

[0232] As an embodiment, the target identifier is a non-negative integer.

[0233] As an embodiment, the target identifier is one of 0 or 1.

[0234] As an embodiment, the target identifier is TI.

[0235] As an embodiment, the target identifier is equal to 0, and the target identifier is used to indicate the first TAG.

[0236] As a sub-embodiment of this embodiment, the target timing advance value is for uplink transmission corresponding to the first TAG.

[0237] As an embodiment, the target identifier is equal to 1, and the target identifier is used to indicate the second TAG.

[0238] As a sub-embodiment of this embodiment, the target timing advance value is for the uplink transmission corresponding to the second TAG.

[0239] As an embodiment, the first TAT is used to control how long the MAC entity considers that the uplink time is aligned.

[0240] As an embodiment, the second TAT is used to control how long the MAC entity considers the uplink time to be consistent.

[0241] As an embodiment, the first TAT is a TimeAlignmentTimer.

[0242] As an embodiment, the second TAT is a TimeAlignmentTimer.

[0243] As an embodiment, the first TAT and the second TAT are both for the first cell.

[0244] As an embodiment, the first TAT and the second TAT are both configured to control whether the uplink time of the first cell is consistent.

[0245] As an embodiment, the first TAT and the second TAT are both configured for uplink timing of the first cell.

[0246] As an embodiment, the first TAT and the second TAT are both configured in the ServingCellConfig corresponding to the first cell.

[0247] As an embodiment, the first TAT and the second TAT are respectively associated with two TAGs configured in the first cell.

[0248] As an embodiment, the first TAT and the second TAT are both associated with a TAG configured by the first cell.

[0249] As an embodiment, step S530 is located after step S510 of the present application.

[0250] As an embodiment, step S540 is located after step S520 of the present application.

[0251] Example 7

[0252] Example 7 illustrates a first flowchart of transmission between a first node and a second node according to an embodiment of the present application. In FIG7 , the first node U5 and the second node N6 communicate via a wireless link. It should be noted that the sequence in this example does not limit the order of signal transmission and implementation in this application.

[0253] For the first node U5, the first signaling is received in step S550; and the first signal is sent in the first time-frequency resource in step S551.

[0254] For the second node N6, a first signaling is sent in step S560; and a first signal is received in a first time-frequency resource in step S561.

[0255] In embodiment 7, the first signaling indicates the first time-frequency resource; whether the first time-frequency resource includes the target timing advance value depends on the target identifier and the spatial parameter of the first signal.

[0256] As an embodiment, the first time-frequency resource occupies frequency domain resources corresponding to a positive integer number of RBs in the frequency domain.

[0257] As an embodiment, the first time-frequency resource occupies time domain resources corresponding to a positive integer number of OFDM symbols in the time domain.

[0258] As an embodiment, the first signaling indicates the time domain position of the time domain resources occupied by the first time-frequency resources.

[0259] As an embodiment, the first signaling indicates the frequency domain position of the time domain resources occupied by the first time-frequency resources.

[0260] As an embodiment, the first signaling schedules the first signal.

[0261] As an embodiment, the first signaling includes DCI.

[0262] As an embodiment, the first signaling includes RRC signaling.

[0263] As an embodiment, the physical layer channel occupied by the first signaling includes PDCCH.

[0264] As an embodiment, the physical layer channel occupied by the first signal includes PUSCH.

[0265] As an embodiment, the transmission channel occupied by the first signal includes UL-SCH.

[0266] As an embodiment, whether the first time-frequency resource includes the target timing advance value depends on the indication of the target identifier and the indication of the first field in the first signaling.

[0267] As a sub-embodiment of this embodiment, the first domain is a TCI domain.

[0268] As a sub-embodiment of this embodiment, the first domain indicates a spatial characteristic of the first signal.

[0269] As a sub-embodiment of this embodiment, the first domain indicates a QCL relationship of the first signal.

[0270] As a sub-embodiment of this embodiment, the first domain indicates an SRS resource set associated with the first signal.

[0271] As a sub-embodiment of this embodiment, the first domain indicates an uplink RS resource set associated with the first signal.

[0272] As an embodiment, the first time-frequency resource includes the target timing advance value, which means that the sending timing of the first signal depends on the target timing advance value.

[0273] As an embodiment, the meaning of the first time-frequency resource including the target timing advance value includes: the TA of the first signal includes the target timing advance value.

[0274] As an embodiment, the first time-frequency resource includes the target timing advance value, which means that the starting time of the uplink frame corresponding to the first time-frequency resource is advanced by a first time value compared to the starting time of the downlink frame with the same frame number, and the first time value includes the target timing advance value.

[0275] As a sub-embodiment of this embodiment, the first time value includes the first N TA,offset and the second N TA,offset One of them.

[0276] As an embodiment, the meaning that the first time-frequency resource does not include the target timing advance value includes: the sending timing of the first signal does not depend on the target timing advance value.

[0277] As an embodiment, the meaning that the first time-frequency resource does not include the effect of the target timing advance value includes: the TA of the first signal does not depend on the target timing advance value.

[0278] As an embodiment, the meaning of the first time-frequency resource not including the target timing advance value includes: the starting time of the uplink frame corresponding to the first time-frequency resource is advanced by a second time value compared to the starting time of the downlink frame with the same frame number, and the second time value does not include the target timing advance value.

[0279] Typically, when the target identifier corresponds to the first TAG and the spatial parameter of the first signal is the first uplink TCI state, or the target identifier corresponds to the second TAG and the spatial parameter of the first signal is the second uplink TCI state, the first time-frequency resource includes the effect of the target timing advance value; when the target identifier corresponds to the first TAG and the spatial parameter of the first signal is the second uplink TCI state, or the target identifier corresponds to the second TAG and the spatial parameter of the first signal is the first uplink TCI state, the first time-frequency resource does not include the effect of the target timing advance value.

[0280] As an embodiment, the target identifier corresponds to the first TAG and the spatial parameter of the first signal is the first uplink TCI state, and the first time-frequency resource includes the function of the target timing advance value.

[0281] As an embodiment, the target identifier corresponds to the second TAG and the spatial parameter of the first signal is the second uplink TCI state, and the first time-frequency resource includes the function of the target timing advance value.

[0282] As an embodiment, the target identifier corresponds to the first TAG and the spatial parameter of the first signal is the second uplink TCI state, and the first time-frequency resource does not include the effect of the target timing advance value.

[0283] As an embodiment, the target identifier corresponds to the second TAG and the spatial parameter of the first signal is the first uplink TCI state, and the first time-frequency resource does not include the effect of the target timing advance value.

[0284] Typically, the first uplink TCI state of the first uplink TCI state and the second uplink TCI state is configured with a downlink path loss offset; when the target identifier corresponds to the first TAG and the spatial parameter of the first signal is the second uplink TCI state, or the target identifier corresponds to the second TAG and the spatial parameter of the first signal is the first uplink TCI state, the first time-frequency resource does not include the effect of the target timing advance value; when the target identifier corresponds to the second TAG and the spatial parameter of the first signal is the second uplink TCI state, the first time-frequency resource includes the effect of the target timing advance value.

[0285] As an embodiment, the first uplink TCI state among the first uplink TCI state and the second uplink TCI state is configured with a downlink path loss offset; the target identifier corresponds to the first TAG and the spatial parameter of the first signal is the second uplink TCI state; the first time-frequency resource does not include the effect of the target timing advance value.

[0286] As an embodiment, the first uplink TCI state among the first uplink TCI state and the second uplink TCI state is configured with a downlink path loss offset; the target identifier corresponds to the second TAG and the spatial parameter of the first signal is the first uplink TCI state; the first time-frequency resource does not include the effect of the target timing advance value.

[0287] As an embodiment, the first uplink TCI state among the first uplink TCI state and the second uplink TCI state is configured with a downlink path loss offset; the target identifier corresponds to the second TAG and the spatial parameter of the first signal is the second uplink TCI state, and the first time-frequency resource includes the function of the target timing advance value.

[0288] Typically, the first uplink TCI state of the first uplink TCI state and the second uplink TCI state is configured with a downlink path loss offset; the target identifier corresponds to the first TAG, and the spatial parameter of the first signal is the first uplink TCI state; when the downlink path loss offset is indicated to be enabled, the first time-frequency resource includes the effect of the target timing advance value; or, when the downlink path loss offset is not indicated to be enabled, the first time-frequency resource does not include the effect of the target timing advance value.

[0289] As an embodiment, the first uplink TCI state among the first uplink TCI state and the second uplink TCI state is configured with a downlink path loss offset; the target identifier corresponds to the first TAG, and the spatial parameter of the first signal is the first uplink TCI state; the downlink path loss offset is indicated to be enabled, and the first time-frequency resource includes the effect of the target timing advance value.

[0290] As an embodiment, the first uplink TCI state among the first uplink TCI state and the second uplink TCI state is configured with a downlink path loss offset; the target identifier corresponds to the first TAG, and the spatial parameter of the first signal is the first uplink TCI state; the downlink path loss offset is not indicated to be enabled, and the first time-frequency resource does not include the effect of the target timing advance value.

[0291] As an embodiment, the first signaling indicates whether the downlink path loss offset is enabled.

[0292] As an embodiment, step S550 is located after step S530 of the present application.

[0293] As an embodiment, step S560 is located after step S540 of the present application.

[0294] Example 8

[0295] Embodiment 8 illustrates a schematic diagram of an embodiment according to an application scenario of the present application, as shown in FIG8. In FIG8, the base station is capable of downlink transmission and uplink reception, and the U-TRP connected to the base station via a backhaul link is also capable of uplink reception, which can improve uplink coverage at the cell edge and reduce terminal power consumption; and the second UL link for the base station and the first UL link for the UL-TRP correspond to different uplink timings.

[0296] As an embodiment, the first TAT is a TAT for the first UL link; the second TAT is a TAT for the second UL link.

[0297] As an embodiment, the first TAG is a TAT for the first UL link; the second TAG is a TAT for the second UL link.

[0298] As an embodiment, the uplink TCI corresponding to the first UL link is configured with a path loss offset, and the uplink TCI corresponding to the second UL link is configured with a path loss offset.

[0299] As an embodiment, the base station is the second node in the application.

[0300] As an embodiment, the base station and the UL-TRP constitute the second node in this application.

[0301] Example 9

[0302] Embodiment 9 illustrates a schematic diagram of an embodiment of TAG configuration, as shown in FIG9. In FIG9, the first cell includes two TAGs, and the two TAGs correspond to the first TAT and the second TAT in this application respectively.

[0303] As an embodiment, the first cell is configured with only one CORESET Pool.

[0304] As an embodiment, the first cell is configured with only one CORESET Pool Id.

[0305] Example 10

[0306] Embodiment 10 illustrates a structural block diagram of a processing device in a first node according to an embodiment of the present application, as shown in FIG10 . In FIG10 , the processing device 1000 in the first node includes a first receiver 1001 and a first transmitter 1002 .

[0307] In embodiment 10, the first receiver 1001 receives a first information block, which configures the identifier of a first TAG and an identifier of a second TAG for a first cell, the first TAG is associated with a first uplink TCI state, and the second TAG is associated with a second uplink TCI state.

[0308] In embodiment 10, the first cell is not indicated with two control resource set pool identifiers; only one of the first uplink TCI state and the second uplink TCI state is configured with a downlink path loss offset.

[0309] As an embodiment, the first receiver 1001 receives target signaling, where the target signaling indicates a target timing advance value; the target signaling includes a target identifier, where the target identifier is used to indicate one of the first TAG and the second TAG.

[0310] As an embodiment, the first transmitter 1002 starts or restarts the target TAT in response to receiving the target signaling; the first TAG and the second TAG are associated with the first TAT and the second TAT, respectively, and the target TAT is the TAT associated with the TAG indicated by the target identifier in the first TAT and the second TAT.

[0311] As an embodiment, the first receiver 1001 receives a first signal; the first transmitter 1002 sends a first signal in a first time-frequency resource; the first signaling indicates the first time-frequency resource; whether the first time-frequency resource includes the target timing advance value depends on the target identifier and the spatial parameters of the first signal.

[0312] As an embodiment, when the target identifier corresponds to the first TAG and the spatial parameter of the first signal is the first uplink TCI state, or the target identifier corresponds to the second TAG and the spatial parameter of the first signal is the second uplink TCI state, the first time-frequency resource includes the effect of the target timing advance value; when the target identifier corresponds to the first TAG and the spatial parameter of the first signal is the second uplink TCI state, or the target identifier corresponds to the second TAG and the spatial parameter of the first signal is the first uplink TCI state, the first time-frequency resource does not include the effect of the target timing advance value.

[0313] As an embodiment, the first uplink TCI state of the first uplink TCI state and the second uplink TCI state is configured with a downlink path loss offset; when the target identifier corresponds to the first TAG and the spatial parameter of the first signal is the second uplink TCI state, or the target identifier corresponds to the second TAG and the spatial parameter of the first signal is the first uplink TCI state, the first time-frequency resource does not include the effect of the target timing advance value; when the target identifier corresponds to the second TAG and the spatial parameter of the first signal is the second uplink TCI state, the first time-frequency resource includes the effect of the target timing advance value.

[0314] As an embodiment, the first uplink TCI state of the first uplink TCI state and the second uplink TCI state is configured with a downlink path loss offset; the target identifier corresponds to the first TAG, and the spatial parameter of the first signal is the first uplink TCI state; when the downlink path loss offset is indicated to be enabled, the first time-frequency resource includes the effect of the target timing advance value; or, when the downlink path loss offset is not indicated to be enabled, the first time-frequency resource does not include the effect of the target timing advance value.

[0315] As an embodiment, the first node is user equipment.

[0316] As an embodiment, the first node is a relay node device.

[0317] As an embodiment, the first receiver 1001 includes at least one of {the antenna 452, the receiver 454, the receiving processor 456, the multi-antenna receiving processor 458, the controller / processor 459, the memory 460, the data source 467} in Example 4.

[0318] As an embodiment, the first transmitter 1002 includes at least one of {the antenna 452, the transmitter 454, the transmit processor 468, the multi-antenna transmit processor 457, the controller / processor 459, the memory 460, the data source 467} in Example 4.

[0319] Example 11

[0320] Embodiment 11 illustrates a structural block diagram of a processing device in a second node according to an embodiment of the present application, as shown in FIG11 . In FIG11 , the processing device 1100 in the second node includes a second transmitter 1101 and a second receiver 1102 .

[0321] In embodiment 11, the second transmitter 1101 sends a first information block, which configures the identifier of the first TAG and the identifier of the second TAG for the first cell, the first TAG is associated with the first uplink TCI state, and the second TAG is associated with the second uplink TCI state.

[0322] In embodiment 11, the first cell is not indicated with two control resource set pool identifiers; only one of the first uplink TCI state and the second uplink TCI state is configured with a downlink path loss offset.

[0323] As an embodiment, the second transmitter 1101 sends target signaling, where the target signaling indicates a target timing advance value; the target signaling includes a target identifier, where the target identifier is used to indicate one of the first TAG and the second TAG.

[0324] As an embodiment, the second transmitter 1101 sends a first signal; the second receiver 1102 receives a first signal in a first time-frequency resource; the first signal indicates the first time-frequency resource; whether the first time-frequency resource includes the target timing advance value depends on the target identifier and the spatial parameters of the first signal.

[0325] As an embodiment, when the target identifier corresponds to the first TAG and the spatial parameter of the first signal is the first uplink TCI state, or the target identifier corresponds to the second TAG and the spatial parameter of the first signal is the second uplink TCI state, the first time-frequency resource includes the effect of the target timing advance value; when the target identifier corresponds to the first TAG and the spatial parameter of the first signal is the second uplink TCI state, or the target identifier corresponds to the second TAG and the spatial parameter of the first signal is the first uplink TCI state, the first time-frequency resource does not include the effect of the target timing advance value.

[0326] As an embodiment, the first uplink TCI state of the first uplink TCI state and the second uplink TCI state is configured with a downlink path loss offset; when the target identifier corresponds to the first TAG and the spatial parameter of the first signal is the second uplink TCI state, or the target identifier corresponds to the second TAG and the spatial parameter of the first signal is the first uplink TCI state, the first time-frequency resource does not include the effect of the target timing advance value; when the target identifier corresponds to the second TAG and the spatial parameter of the first signal is the second uplink TCI state, the first time-frequency resource includes the effect of the target timing advance value.

[0327] As an embodiment, the first uplink TCI state of the first uplink TCI state and the second uplink TCI state is configured with a downlink path loss offset; the target identifier corresponds to the first TAG, and the spatial parameter of the first signal is the first uplink TCI state; when the downlink path loss offset is indicated to be enabled, the first time-frequency resource includes the effect of the target timing advance value; or, when the downlink path loss offset is not indicated to be enabled, the first time-frequency resource does not include the effect of the target timing advance value.

[0328] As an embodiment, the second node is a base station device.

[0329] As an embodiment, the second node is user equipment.

[0330] As an embodiment, the second node is a relay node device.

[0331] As an embodiment, the second transmitter 1101 includes at least one of {the antenna 420, the transmitter 418, the transmit processor 416, the multi-antenna transmit processor 471, the controller / processor 475, and the memory 476} in Embodiment 4.

[0332] As an embodiment, the second receiver 1102 includes at least one of {the antenna 420, the receiver 418, the receiving processor 470, the multi-antenna receiving processor 472, the controller / processor 475, and the memory 476} in Embodiment 4.

[0333] Those skilled in the art will appreciate that all or part of the steps in the above method can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable storage medium, such as a read-only memory, a hard disk or an optical disk. Optionally, all or part of the steps in the above embodiment can also be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiment can be implemented in the form of hardware or in the form of a software functional module. This application is not limited to any specific form of combination of software and hardware. The user equipment, terminal and UE in this application include but are not limited to drones, communication modules on drones, remote-controlled aircraft, aircraft, small aircraft, mobile phones, tablet computers, notebooks, vehicle-mounted communication equipment, transportation vehicles, vehicles, RSUs, wireless sensors, internet cards, Internet of Things terminals, RFID (Radio Frequency Identification) terminals, NB-IoT (Narrow Band Internet of Things) terminals, MTC (Machine Type Communication) terminals, eMTC (enhanced MTC) terminals, data cards, internet cards, vehicle-mounted communication equipment, low-cost mobile phones, low-cost tablet computers and other wireless communication devices. The base stations or system equipment in this application include but are not limited to macrocell base stations, microcell base stations, small cell base stations, home base stations, relay base stations, eNB (evolved Node B), gNB, TRP, GNSS (Global Navigation Satellite System), relay satellites, satellite base stations, aerial base stations, RSUs, drones, test equipment, such as transceivers or signaling testers that simulate some functions of base stations, and other wireless communication equipment.

[0334] Those skilled in the art will appreciate that the present invention may be implemented in other specific forms without departing from its core or essential characteristics. Therefore, the presently disclosed embodiments should be considered in all respects as illustrative and not restrictive. The scope of the invention is determined by the appended claims, not the foregoing description, and all modifications that come within the meaning and range of equivalents are intended to be embraced therein.

Claims

1. A first node used for uplink timing of wireless communication, characterized in that: include: A first receiver receives a first information block, where the first information block configures an identifier of a first TAG and an identifier of a second TAG for a first cell, where the first TAG is associated with a first uplink TCI state, and the second TAG is associated with a second uplink TCI state; The first cell is not indicated with two control resource set pool identifiers; only one of the first uplink TCI state and the second uplink TCI state is configured with a downlink path loss offset.

2. The first node according to claim 1, characterized in that include: The first receiver receives target signaling, where the target signaling indicates a target timing advance value; The target signaling includes a target identifier, and the target identifier is used to indicate one of the first TAG and the second TAG.

3. The first node according to claim 2, characterized in that include: a first transmitter, in response to receiving the target signaling, starting or restarting a target TAT; The first TAG and the second TAG are associated with a first TAT and a second TAT, respectively, and the target TAT is the TAT associated with the TAG indicated by the target identifier in the first TAT and the second TAT.

4. The first node according to claim 2 or 3, characterized in that include: The first receiver receives a first signaling; The first transmitter sends a first signal in a first time-frequency resource; The first signaling indicates the first time-frequency resource; Whether the first time-frequency resource includes the target timing advance value depends on the target identifier and the spatial parameters of the first signal.

5. The first node according to claim 4, characterized in that When the target identifier corresponds to the first TAG and the spatial parameter of the first signal is the first uplink TCI state, or the target identifier corresponds to the second TAG and the spatial parameter of the first signal is the second uplink TCI state, the first time-frequency resource includes the effect of the target timing advance value; when the target identifier corresponds to the first TAG and the spatial parameter of the first signal is the second uplink TCI state, or the target identifier corresponds to the second TAG and the spatial parameter of the first signal is the first uplink TCI state, the first time-frequency resource does not include the effect of the target timing advance value.

6. The first node according to claim 4, characterized in that The first uplink TCI state of the first uplink TCI state and the second uplink TCI state is configured with a downlink path loss offset; when the target identifier corresponds to the first TAG and the spatial parameter of the first signal is the second uplink TCI state, or the target identifier corresponds to the second TAG and the spatial parameter of the first signal is the first uplink TCI state, the first time-frequency resource does not include the effect of the target timing advance value; when the target identifier corresponds to the second TAG and the spatial parameter of the first signal is the second uplink TCI state, the first time-frequency resource includes the effect of the target timing advance value.

7. The first node according to claim 6, characterized in that The first uplink TCI state of the first uplink TCI state and the second uplink TCI state is configured with a downlink path loss offset; the target identifier corresponds to the first TAG, and the spatial parameter of the first signal is the first uplink TCI state; when the downlink path loss offset is indicated to be enabled, the first time-frequency resource includes the effect of the target timing advance value; or, when the downlink path loss offset is not indicated to be enabled, the first time-frequency resource does not include the effect of the target timing advance value.

8. A second node used for uplink timing of wireless communication, characterized in that: include: A first transmitter sends a first information block, where the first information block configures an identifier of a first TAG and an identifier of a second TAG for a first cell, where the first TAG is associated with a first uplink TCI state, and the second TAG is associated with a second uplink TCI state; The first cell is not indicated with two control resource set pool identifiers; only one of the first uplink TCI state and the second uplink TCI state is configured with a downlink path loss offset.

9. A method in a first node for uplink timing of wireless communication, characterized in that: include: receiving a first information block, where the first information block configures an identifier of a first TAG and an identifier of a second TAG for a first cell, where the first TAG is associated with a first uplink TCI state, and the second TAG is associated with a second uplink TCI state; The first cell is not indicated with two control resource set pool identifiers; only one of the first uplink TCI state and the second uplink TCI state is configured with a downlink path loss offset.

10. A method in a second node used for uplink timing of wireless communication, characterized in that: include: Sending a first information block, where the first information block configures an identifier of a first TAG and an identifier of a second TAG for the first cell, where the first TAG is associated with a first uplink TCI state, and the second TAG is associated with a second uplink TCI state; The first cell is not indicated with two control resource set pool identifiers; only one of the first uplink TCI state and the second uplink TCI state is configured with a downlink path loss offset.

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