Method and device for node used for uplink synchronization in wireless communication

Abstract

The present application discloses a method and device for a node used for uplink synchronization in wireless communication. The method comprises: a first node receiving first signaling, wherein the first signaling indicates a first timing advance value; sending a first signal in a first time-frequency resource, wherein the first signaling indicates a target identifier, whether the first time-frequency resource comprises the effect of the first timing advance value depends on whether a spatial parameter used by the first signal is consistent with the target identifier, and when the target identifier is a first identifier and the spatial parameter used by the first signal is a first indicated TCI state, or the target identifier is a second identifier and the spatial parameter used by the first signal is a second indicated TCI state, the first time-frequency resource comprises the effect of the first timing advance value. The present application supports an uplink multi-beam / TRP / panel transmission based on different timing advance values in a TAG, thereby improving the uplink transmission performance and the uplink throughput.

Description

A method and device for use in a node for uplink synchronization of wireless communication

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on April 1, 2024, with application number 202410390318.9 and application name “A method and device in a node used for uplink synchronization of wireless communications”, 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 a method and apparatus for uplink synchronization. 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 pointed 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, where a UE receives downlink (DL) transmissions from a gNB but sends uplink (UL) transmissions to a gNB or 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 for SRS (Sounding Resource Signal) for gNB DL CSI (Channel State Information) acquisition and UL multi-TRP transmission, respectively. Summary of the Invention

[0005] In existing standards, to avoid transmission interference and ensure that uplink signals sent by all UEs served by the base station to the base station are aligned when they arrive at the base station, the base station will send a TA (Timing Advance) adjustment indication to the UE through (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, it can accurately determine the actual uplink transmission timing. Cells with the same timing advance and using the same timing reference are grouped into a TAG (Timing Advance Group), and each TAG includes at least one serving cell configured with an uplink. In UL / DL asymmetric scenarios, UE uplink transmissions may correspond to different beams / TRPs / panels, and different beams / TRPs / panels may correspond to different TAs. How to support different TAs in a TAG and how to determine the transmission timing for the TA adjustment indicated by MAC signaling are issues that need to be addressed.

[0006] 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.

[0007] 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.

[0008] As an example, the interpretation of the terms in this application refers to the definitions of the 3GPP specification protocol TS38 series.

[0009] As an example, the interpretation of the terms in this application refers to the definitions of the TS37 series of specification protocols of 3GPP.

[0010] As an example, the interpretation of the terms in this application refers to the definitions of the TS40 series of specification protocols of 3GPP.

[0011] As an example, the interpretation of the terms in this application refers to the definitions in the TS39 series of specification protocols of 3GPP.

[0012] 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.

[0013] 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.

[0014] 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.

[0015] 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.

[0016] The present application discloses a method in a first node for uplink synchronization of wireless communication, which includes:

[0017] receiving first signaling, where the first signaling indicates a first timing advance value;

[0018] Sending a first signal in a first time-frequency resource;

[0019] Among them, the first signaling indicates the target identifier; whether the first time-frequency resource includes the effect of the first timing advance value depends on whether the spatial parameter adopted by the first signal is consistent with the target identifier; when the target identifier is the first identifier and the spatial parameter adopted by the first signal is the first indicated TCI state, or the target identifier is the second identifier and the spatial parameter adopted by the first signal is the second indicated TCI state, the first time-frequency resource includes the effect of the first timing advance value; when the target identifier is the first identifier and the spatial parameter adopted by the first signal is the second indicated TCI state, or the target identifier is the second identifier and the spatial parameter adopted by the first signal is the first indicated TCI state, the first time-frequency resource does not include the effect of the first timing advance value.

[0020] As an embodiment, the problem to be solved by the present application includes: how to support different TAs in a serving cell.

[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: determining a TA adjustment value in an uplink and downlink asymmetric deployment scenario.

[0023] As an embodiment, the characteristics of the above method include: in the present application, the determination of TA in the uplink timing of the first node is made dependent on whether the spatial parameters of the transmitted uplink signal are consistent with the target identifier, thereby solving the above problem.

[0024] As an embodiment, the characteristics of the above method include: in the UL / DL asymmetric scenario, the downlink is based on a single TRP transmission, and the base station will not configure two TAGs at the same time. Therefore, the field originally indicating the TAG in the MAC CE that updates or indicates the TA can be used to indicate the uplink TRP corresponding to the TA indicated or updated in the MAC.

[0025] As an embodiment, the characteristics of the above method include: redefining the indication and interpretation of TA while keeping the existing TAC structure unchanged to support the scenario of uplink and downlink asymmetry.

[0026] As an embodiment, the characteristics of the above method include: the target signaling is used to indicate or update a terminal-specific timing advance.

[0027] As an embodiment, the characteristics of the above method include: the target identifier explicitly indicates the uplink TRP corresponding to the TA in the TAC.

[0028] As an embodiment, the characteristics of the above method include: when the spatial parameters used by the first signal are consistent with the target identifier, the uplink TRP targeted by the timing advance indicated or updated by the first signaling is consistent with the uplink TRP of receiving the first signal, and therefore, the timing advance indicated by the first signaling is used for the uplink timing when sending the first signal.

[0029] As an embodiment, the characteristics of the above method include: when the spatial parameters used by the first signal are inconsistent with the target identifier, the uplink TRP targeted by the timing advance indicated or updated by the first signaling is inconsistent with the uplink TRP of receiving the first signal, and therefore, the timing advance indicated by the first signaling is not used for the uplink timing when sending the first signal.

[0030] As an embodiment, the benefits of the above method include: supporting uplink multi-beam / TRP / panel transmission based on different timing advance values, thereby improving uplink transmission performance.

[0031] As an embodiment, the benefits of the above method include: supporting uplink and downlink asymmetric deployment scenarios and improving uplink throughput.

[0032] As an embodiment, the advantages of the above method include: no need to configure multiple TAGs, reducing the complexity of network implementation.

[0033] As an embodiment, the benefits of the above method include: explicit indication to ensure the accuracy of TA adjustment.

[0034] As an embodiment, the advantages of the above method include: solving the problem of supporting different TAs in one TAG, making minor changes to the current standard, and being easy to implement.

[0035] According to one aspect of the present application, the above method is characterized in that the target identifier is a TAG ID or the target identifier is a TI, and the cell targeted by the first timing advance value is not configured with two TAGs.

[0036] As an embodiment, the characteristics of the above method include: in an uplink and downlink asymmetric scenario, the mobile phone corresponds to the same TAG when sending an uplink to the base station or sending an uplink to a remote TRP specifically used to receive the uplink.

[0037] As an embodiment, the characteristics of the above method include: the target identifier indicates the TAG targeted by the TA in the first signaling in a scenario where two TAGs are configured at the same time, and in an uplink and downlink asymmetric deployment scenario, the cell targeted by the first timing advance value is not configured with two TAGs, and the target identifier is not set to a reserved value, but is reinterpreted as an identifier supporting different TAs under one TAG.

[0038] As an embodiment, the benefits of the above method include: reducing standard changes and facilitating implementation.

[0039] As an embodiment, the benefits of the above method include: reducing interference and enhancing system robustness.

[0040] As an embodiment, the advantages of the above method include: solving the problem of supporting different TAs in one TAG, making minor changes to the current standard, and being easy to implement.

[0041] According to one aspect of the present application, the above method is characterized in that the cell targeted by the first timing advance value is configured with at least two uplink RS resource sets, and the two uplink RS resource sets are respectively associated with the TCI state indicated by the first and the TCI state indicated by the second.

[0042] As an embodiment, the characteristics of the above method include: the two uplink RS resource sets are two SRS resource sets.

[0043] As an embodiment, the characteristics of the above method include: the two uplink RS resource sets are two DMRS sets.

[0044] As an embodiment, the characteristics of the above method include: the first time-frequency resources belong to the time-frequency resources occupied by the two uplink RS resource sets.

[0045] As an embodiment, the characteristics of the above method include: the first signal is a transmission of one uplink RS resource set among the two uplink RS resource sets.

[0046] As an embodiment, the characteristics of the above method include: the first signal is associated with one uplink RS resource set of the two uplink RS resource sets.

[0047] As an embodiment, the benefits of the above method include: good compatibility.

[0048] According to one aspect of the present application, the above method is characterized in that the cell targeted by the first timing advance value is not configured with two coresetPoolIndex.

[0049] As an embodiment, the characteristics of the above method include: the existing base station that supports uplink and downlink asymmetric scenarios will not apply multiple downlink TRPs at the same time, so there is no need to configure two CORESET Pools for the downlink TRP.

[0050] As an embodiment, the characteristics of the above method include: the first node cannot be configured with both two uplink SRS resource sets and two coresetPoolIndex.

[0051] As an embodiment, the benefits of the above method include: supporting different TRP deployment solutions under different deployment environments and network loads, reducing costs, simplifying deployment management, and simplifying system implementation.

[0052] According to one aspect of the present application, the above method is characterized in that it includes:

[0053] receiving target signaling, where the target signaling indicates the at least two uplink RS resource sets;

[0054] Among them, the at least two uplink RS resource sets include at least one uplink RS resource set, the one uplink RS resource set includes at least one uplink RS resource, the one uplink RS resource is configured as a reference downlink reference signal resource, and the uplink RS resource is configured with a path loss offset.

[0055] As an embodiment, the characteristics of the above method include: in the UL / DL asymmetric scenario, in order to facilitate the accurate calculation of the path loss associated with the terminal and the TRP / panel, the base station can configure a path loss offset for the UL TRP for the terminal. Therefore, the terminal can determine the TRP / panel corresponding to the uplink transmission by whether the uplink RS resource is configured with a path loss offset, and then determine the uplink timing in different scenarios.

[0056] As an embodiment, the characteristics of the above method include: the at least two uplink RS resource sets include at least one uplink RS resource set, the one uplink RS resource set is configured with a reference downlink reference signal resource, and the uplink resource is configured with a path loss offset.

[0057] As an embodiment, the characteristics of the above method include: the two uplink RS resource sets are respectively associated with two indicated TCI states, one TCI state of the two indicated TCI states is configured with a reference downlink reference signal resource and is configured with a path loss offset.

[0058] As an embodiment, the benefits of the above method include: the terminal determines the receiver of the uplink RS resource according to whether the path loss offset is configured, thereby saving signaling overhead.

[0059] As an embodiment, the benefits of the above method include: supporting uplink and downlink asymmetric deployment scenarios and improving uplink throughput.

[0060] According to one aspect of the present application, the above method is characterized in that, when the first signal and the one uplink RS resource are QCL, the transmission power value of the first signal depends on both the downlink reference signal resource and the path loss offset.

[0061] As an embodiment, the characteristics of the above method include: when the first signal and the one RS resource are QCL, the receiver of the first signal is UL TRP.

[0062] As an embodiment, the characteristics of the above method include: the downlink reference signal resource includes a downlink reference signal, the first node measures the downlink reference signal to obtain the downlink path loss between the base station and the first node, when the first signal and the one uplink RS resource are QCL, the receiver of the first signal is the UL TRP, and the first node jointly determines the uplink transmission path loss based on the downlink path loss between the base station and the first node and the path loss offset.

[0063] As an embodiment, the benefits of the above method include: correcting the uplink transmission path loss of the terminal sending signal, thereby more accurately estimating the transmission link quality from the terminal to the UL TRP.

[0064] As an embodiment, the benefits of the above method include: ensuring that the network is more accurate in resource allocation and scheduling, and improving network performance and throughput.

[0065] As an embodiment, the benefits of the above method include: enhancing uplink power control, ensuring the transmission quality of uplink signals, and saving power resources.

[0066] According to one aspect of the present application, the above method is characterized in that the uplink RS resources corresponding to the TCI state indicated by the first indication belong to the first uplink RS resource set, and the uplink RS resources corresponding to the TCI state indicated by the second indication belong to the second uplink RS resource set; there is at least one uplink RS resource in the first uplink RS resource set and one uplink RS resource in the second uplink RS resource set that are configured with the same reference downlink reference signal resource.

[0067] As an embodiment, the characteristics of the above method include: the first uplink RS resource belongs to the first uplink RS resource set, the second uplink RS resource belongs to the second uplink RS resource set, the first node measures the first downlink reference signal to obtain a first path loss, the transmission power value of the first uplink RS resource depends on the first path loss, and the transmission power value of the second uplink resource depends on the first path loss and the configured path loss offset.

[0068] As an embodiment, the characteristics of the above method include: the first uplink RS resource belongs to the first uplink RS resource set, the second uplink RS resource belongs to the second uplink RS resource set, the first node measures the first downlink reference signal to obtain a first path loss, the transmission power value of the second uplink RS resource depends on the first path loss, and the transmission power value of the first uplink RS resource depends on the first path loss and the configured path loss offset.

[0069] As an embodiment, the benefits of the above method include: achieving asymmetric uplink and downlink deployment based on different uplink resource sets, and optimizing signal coverage and transmission performance.

[0070] As an embodiment, the benefits of the above method include: helping to optimize network resource utilization, achieving flexible scheduling and resource allocation, and improving system performance and efficiency.

[0071] According to one aspect of the present application, the above method is characterized in that the first node is a user equipment.

[0072] According to one aspect of the present application, the above method is characterized in that the first node is a relay node.

[0073] The present application discloses a method in a second node for uplink synchronization of wireless communication, which includes:

[0074] Sending first signaling, where the first signaling indicates a first timing advance value;

[0075] Receiving a first signal in a first time-frequency resource;

[0076] Among them, the first signaling indicates the target identifier; whether the first time-frequency resource includes the effect of the first timing advance value depends on whether the spatial parameter adopted by the first signal is consistent with the target identifier; when the target identifier is the first identifier and the spatial parameter adopted by the first signal is the first indicated TCI state, or the target identifier is the second identifier and the spatial parameter adopted by the first signal is the second indicated TCI state, the first time-frequency resource includes the effect of the first timing advance value; when the target identifier is the first identifier and the spatial parameter adopted by the first signal is the second indicated TCI state, or the target identifier is the second identifier and the spatial parameter adopted by the first signal is the first indicated TCI state, the first time-frequency resource does not include the effect of the first timing advance value.

[0077] According to one aspect of the present application, the above method is characterized in that the target identifier is a TAG ID or the target identifier is a TI, and the cell targeted by the first timing advance value is not configured with two TAGs.

[0078] According to one aspect of the present application, the above method is characterized in that the cell targeted by the first timing advance value is configured with at least two uplink RS resource sets, and the two uplink RS resource sets are respectively associated with the TCI state indicated by the first and the TCI state indicated by the second.

[0079] According to one aspect of the present application, the above method is characterized in that the cell targeted by the first timing advance value is not configured with two coresetPoolIndex.

[0080] According to one aspect of the present application, the above method is characterized in that it includes:

[0081] Sending target signaling, where the target signaling indicates the at least two uplink RS resource sets;

[0082] Among them, the at least two uplink RS resource sets include at least one uplink RS resource set, the one uplink RS resource set includes at least one uplink RS resource, the one uplink RS resource is configured as a reference downlink reference signal resource, and the uplink RS resource is configured with a path loss offset.

[0083] According to one aspect of the present application, the above method is characterized in that, when the first signal and the one uplink RS resource are QCL, the transmission power value of the first signal depends on both the downlink reference signal resource and the path loss offset.

[0084] According to one aspect of the present application, the above method is characterized in that the uplink RS resources corresponding to the TCI state indicated by the first indication belong to the first uplink RS resource set, and the uplink RS resources corresponding to the TCI state indicated by the second indication belong to the second uplink RS resource set; there is at least one uplink RS resource in the first uplink RS resource set and one uplink RS resource in the second uplink RS resource set that are configured with the same reference downlink reference signal resource.

[0085] According to one aspect of the present application, the above method is characterized in that the second node is a base station.

[0086] According to one aspect of the present application, the above method is characterized in that the second node is a user equipment.

[0087] According to one aspect of the present application, the above method is characterized in that the second node is a TRP.

[0088] The present application discloses a device for a first node used for uplink synchronization of wireless communication, comprising:

[0089] A first receiver receives a first signaling indicating a first timing advance value;

[0090] A first transmitter sends a first signal in a first time-frequency resource;

[0091] Among them, the first signaling indicates the target identifier; whether the first time-frequency resource includes the effect of the first timing advance value depends on whether the spatial parameter adopted by the first signal is consistent with the target identifier; when the target identifier is the first identifier and the spatial parameter adopted by the first signal is the first indicated TCI state, or the target identifier is the second identifier and the spatial parameter adopted by the first signal is the second indicated TCI state, the first time-frequency resource includes the effect of the first timing advance value; when the target identifier is the first identifier and the spatial parameter adopted by the first signal is the second indicated TCI state, or the target identifier is the second identifier and the spatial parameter adopted by the first signal is the first indicated TCI state, the first time-frequency resource does not include the effect of the first timing advance value.

[0092] The present application discloses a device for a second node used for uplink synchronization of wireless communication, comprising:

[0093] A second transmitter sends a first signaling, where the first signaling indicates a first timing advance value;

[0094] A second receiver receives a first signal in a first time-frequency resource;

[0095] Among them, the first signaling indicates the target identifier; whether the first time-frequency resource includes the effect of the first timing advance value depends on whether the spatial parameter adopted by the first signal is consistent with the target identifier; when the target identifier is the first identifier and the spatial parameter adopted by the first signal is the first indicated TCI state, or the target identifier is the second identifier and the spatial parameter adopted by the first signal is the second indicated TCI state, the first time-frequency resource includes the effect of the first timing advance value; when the target identifier is the first identifier and the spatial parameter adopted by the first signal is the second indicated TCI state, or the target identifier is the second identifier and the spatial parameter adopted by the first signal is the first indicated TCI state, the first time-frequency resource does not include the effect of the first timing advance value.

[0096] As an embodiment, compared with the traditional solution, the present application has the following advantages but not limited to:

[0097] This application supports uplink multi-beam / TRP / panel transmission based on different timing advance values, improving uplink transmission performance;

[0098] Supports uplink and downlink asymmetric deployment scenarios to improve uplink throughput;

[0099] No need to configure multiple tags, reducing the complexity of network implementation;

[0100] This solves the issue of supporting different TAs in one TAG, with minor changes to the current standard. BRIEF DESCRIPTION OF THE DRAWINGS

[0101] 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:

[0102] FIG1 shows a flow chart of first node transmission according to an embodiment of the present application;

[0103] FIG2 shows a schematic diagram of a network architecture according to an embodiment of the present application;

[0104] 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;

[0105] FIG4 shows a schematic diagram of a first communication device and a second communication device according to an embodiment of the present application;

[0106] FIG5 shows a flow chart of transmission between a first node and a second node according to an embodiment of the present application;

[0107] FIG6 shows a first schematic diagram of configuration of a cell targeted by a first timing advance value according to an embodiment of the present application;

[0108] FIG7 shows a second schematic diagram of configuration of a cell targeted by a first timing advance value according to an embodiment of the present application;

[0109] FIG8 is a schematic diagram showing a transmission power value of a first signal according to an embodiment of the present application;

[0110] FIG9 shows a schematic diagram of a TA in an uplink and downlink asymmetric scenario according to an embodiment of the present application;

[0111] FIG10 is a schematic diagram showing an application of the present application in an uplink and downlink asymmetric scenario according to an embodiment of the present application;

[0112] FIG11 shows a structural block diagram of a processing device used in a first node according to an embodiment of the present application;

[0113] FIG12 shows a structural block diagram of a processing device used in a second node according to an embodiment of the present application. DETAILED DESCRIPTION

[0114] 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 in the present application and the features in the embodiments can be combined with each other arbitrarily.

[0115] Example 1

[0116] 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.

[0117] In step 101 , the first node receives first signaling indicating a first timing advance value; and in step 102 , sends a first signal in a first time-frequency resource.

[0118] In embodiment 1, the first signaling indicates a target identifier; whether the first time-frequency resource includes the effect of the first timing advance value depends on whether the spatial parameter adopted by the first signal is consistent with the target identifier; when the target identifier is the first identifier and the spatial parameter adopted by the first signal is the first indicated TCI state, or the target identifier is the second identifier and the spatial parameter adopted by the first signal is the second indicated TCI state, the first time-frequency resource includes the effect of the first timing advance value; when the target identifier is the first identifier and the spatial parameter adopted by the first signal is the second indicated TCI state, or the target identifier is the second identifier and the spatial parameter adopted by the first signal is the first indicated TCI state, the first time-frequency resource does not include the effect of the first timing advance value.

[0119] As an embodiment, the TCI refers to: Transmission Configuration Indicator.

[0120] As an embodiment, the first node is the first node in this application.

[0121] As an embodiment, the first node receives the first signaling.

[0122] As an embodiment, the first signaling includes dynamic signaling.

[0123] As an embodiment, the first signaling includes MAC (Medium Access Control) layer signaling.

[0124] As an embodiment, the first signaling is MAC layer signaling.

[0125] As an embodiment, the first signaling includes a MAC PDU (Protocol Data Unit).

[0126] As an embodiment, the first signaling includes a MAC subheader.

[0127] As an embodiment, the first signaling includes a MAC CE (Control Element).

[0128] As an embodiment, the first signaling includes physical layer signaling.

[0129] As an embodiment, the first signaling includes DCI (Downlink Control Information).

[0130] As an embodiment, the unit of the first timing advance value is millisecond (ms).

[0131] As an embodiment, the unit of the first timing advance value is microsecond (μs).

[0132] As an embodiment, the unit of the first timing advance value is TC.

[0133] As an embodiment, the unit of the first timing advance value is TS.

[0134] As an example, the TC in this application is equal to 1 / (Δf max ·N f ), where Δf max Equal to 480kHz (kilohertz), N f Equal to 4096.

[0135] As an example, the TS described in this application is equal to 1 / (Δf ref ·N f,ref ), where Δf ref Equal to 15kHz, N f,ref Equal to 2048.

[0136] As an embodiment, the TC described in this application is a basic time unit for NR (New Radio).

[0137] As an embodiment, the TS described in this application is a basic time unit for LTE (Long-Term Evolution).

[0138] As an embodiment, the first timing advance value includes a timing advance between a downlink (DownLink, DL) and an uplink (UpLink, UL).

[0139] As an embodiment, the first timing advance value is a timing advance between an uplink and a downlink.

[0140] As an embodiment, the first timing advance value is a time offset between uplink timing and downlink timing.

[0141] As an embodiment, the first timing advance value is a time advance of the uplink timing relative to the downlink timing.

[0142] As an embodiment, the first timing advance value is a TTA value.

[0143] As an embodiment, the definition of TTA in this application refers to clause 4.3.1 of 3GPP (the 3rd Generation Partnership Project) TS (Technical Specification) 38.211.

[0144] As an embodiment, the first timing advance value is an NTA value.

[0145] As an embodiment, the definition of NTA described in this application refers to Section 4.2 of 3GPP TS38.213.

[0146] As an embodiment, the first signaling indicates the first timing advance value.

[0147] As an embodiment, the first signaling carries the first timing advance value.

[0148] As an embodiment, the first signaling indicates a first integer, and the first integer is used to determine the first timing advance value.

[0149] As an embodiment, the first signaling includes a Timing Advance Command (TAC) field.

[0150] As an embodiment, the first signaling carries TAC, and the first timing advance value is indicated by the TAC.

[0151] As an embodiment, the first signaling carries TA, and the first timing advance value is indicated by the TA.

[0152] As an embodiment, the first signaling carries a timing offset value, and the first timing advance value is indicated by the timing offset.

[0153] As an embodiment, the first signaling includes a Timing Advance Command MAC CE.

[0154] As an embodiment, the first signaling includes an Absolute Timing Advance Command (MAC CE).

[0155] As an embodiment, the first signaling includes MAC RAR (Random Access Response).

[0156] As an embodiment, the first signaling includes fallbackRAR (fallback random access response).

[0157] As an embodiment, the first signaling includes an L1 / L2 triggered mobility (L1 / L2 Triggered Mobility, LTM) cell switch command (LTM Cell Switch Command) MAC CE.

[0158] As an embodiment, the first signaling includes a Timing Advance Offset (MAC CE).

[0159] As an embodiment, the name of the MAC CE carrying the first signaling includes Timing.

[0160] As an embodiment, the name of the MAC CE carrying the first signaling includes Advance.

[0161] As an embodiment, the name of the MAC CE carrying the first signaling includes Command.

[0162] As an embodiment, the name of the MAC CE carrying the first signaling includes Offset.

[0163] As an embodiment, the first node sends the first signal in the first time-frequency resource.

[0164] As an embodiment, the first time-frequency resources include time domain resources and frequency domain resources.

[0165] As an embodiment, the first time-frequency resource occupies at least one RE (Resource Element).

[0166] Typically, one RE in this application occupies one symbol in the time domain and one subcarrier in the frequency domain.

[0167] As an embodiment, the first time-frequency resource occupies at least one RB (Resource Block).

[0168] Typically, one RB described in this application occupies 12 consecutive subcarriers in the frequency domain.

[0169] As an embodiment, the time domain resources occupied by the first time-frequency resources belong to an uplink frame.

[0170] As an embodiment, the first time-frequency resource includes a PUSCH (Physical Uplink Shared CHannel) resource.

[0171] As an embodiment, the first time-frequency resource includes a PUCCH (Physical Uplink Control CHannel) resource.

[0172] As an embodiment, the first time-frequency resource includes an SRS (Sounding Reference Signal) resource.

[0173] As an embodiment, the first signal includes a baseband signal.

[0174] As an embodiment, the first signal includes a wireless signal.

[0175] As an embodiment, the first signal includes a radio frequency signal.

[0176] As an embodiment, the first signal includes a reference signal (Reference Signal).

[0177] As an embodiment, the first signal occupies the first time-frequency resources.

[0178] As an embodiment, the time domain resources occupied by the first time-frequency resources belong to the first cell.

[0179] As an embodiment, the air interface resources occupied by the first signal belong to the first cell.

[0180] As an embodiment, in the present application, the first cell is a serving cell of the first node, and the first cell is configured with a unified TCI frame.

[0181] As an embodiment, in the present application, the first cell is a serving cell of the first node, and the first cell is configured with a higher-layer parameter unifiedTCI-StateType.

[0182] As a sub-embodiment of this embodiment, the first cell is a special cell (Special Cell, SpCell) of the first node.

[0183] As a sub-embodiment of this embodiment, the higher-layer parameter unifiedTCI-StateType is set to one of separate or joint.

[0184] As a sub-embodiment of this embodiment, the higher-layer parameter unifiedTCI-StateType is set to joint.

[0185] As a sub-embodiment of this embodiment, the higher-layer parameter unifiedTCI-StateType is set to separate.

[0186] As an embodiment, the first signal is transmitted on PUSCH.

[0187] As an embodiment, the first signal is PUSCH, and the first time-frequency resource belongs to PUSCH resources.

[0188] As an embodiment, the first signal is a PUSCH, and the first time-frequency resource is a PUSCH occasion.

[0189] As an embodiment, the first signal is a dynamically granted (dynamic-grant) PUSCH, and the PUSCH-config IE (Information Element) corresponding to the first signal is configured with a higher-layer parameter applyIndicatedTCI-State.

[0190] As a sub-embodiment of the above embodiment, the format of the DCI for scheduling the first signal does not include DCI format 0_0.

[0191] As a sub-embodiment of the above embodiment, the format of the DCI for scheduling the first signal is DCI format 0_1 ​​or DCI format 0_2.

[0192] As an embodiment, the first signal is a dynamically granted PUSCH, and the PUSCH-config IE corresponding to the first signal is configured with a higher-layer parameter applyIndicatedTCIState.

[0193] As a sub-embodiment of the above embodiment, the format of the DCI for scheduling the first signal does not include DCI format 0_0.

[0194] As a sub-embodiment of the above embodiment, the format of the DCI for scheduling the first signal is DCI format 0_1 ​​or DCI format 0_2.

[0195] As an embodiment, the first signal is a Type 2 configured-grant PUSCH, and the PUSCH-config IE corresponding to the first signal is configured with a higher-layer parameter applyIndicatedTCI-State.

[0196] As an embodiment, the first signal is a Type 2 configured-grant PUSCH, and the PUSCH-config IE corresponding to the first signal is configured with a higher-layer parameter applyIndicatedTCIState.

[0197] As an embodiment, the first signal is a Type 1 configured-grant PUSCH, and the ConfiguredGrantConfig IE corresponding to the first signal is configured with a higher-layer parameter applyIndicatedTCI-State.

[0198] As an embodiment, the first signal is a Type 1 configured-grant PUSCH, and the ConfiguredGrantConfig IE corresponding to the first signal is configured with a higher layer parameter applyIndicatedTCIState.

[0199] As an embodiment, the first signal is transmitted on PUCCH.

[0200] As an embodiment, the first signal is PUCCH, and the first time-frequency resource belongs to PUCCH resources.

[0201] As an embodiment, the first signal is a PUCCH, and the first time-frequency resource is a PUCCH opportunity.

[0202] As an embodiment, the first signal is a PUCCH, and the PUCCH-ResourceExt IE corresponding to the first signal is configured with a higher layer parameter applyIndicatedTCI-State.

[0203] As an embodiment, the first signal is a PUCCH, and the PUCCH-ResourceExt IE corresponding to the first signal is configured with a higher layer parameter apply-IndicatedTCIState.

[0204] As an embodiment, the first signal is an SRS, and the first time-frequency resource belongs to an SRS resource.

[0205] As an embodiment, the first signal is an SRS transmission of a periodic SRS resource.

[0206] As an embodiment, the first signal is an SRS transmission of a semi-persistent SRS resource.

[0207] As an embodiment, the first signal is an SRS transmission of an aperiodic SRS resource.

[0208] As an embodiment, the first signal is an SRS, and the SRS resource set (SRS resource set) to which the first signal belongs is configured with higher-layer parameters followUnifiedTCI-StateSRS and applyIndicatedTCI-State.

[0209] As an embodiment, the first signal is an SRS, and the SRS resource set to which the first signal belongs is configured with higher-layer parameters followUnifiedTCI-StateSRS and applyIndicatedTCIState.

[0210] As an embodiment, the first signaling indicates the target identifier.

[0211] As an embodiment, the target identifier is a non-negative integer.

[0212] As an embodiment, the target identifier is one of 0 or 1.

[0213] As an embodiment, the target identifier is one of 0, 1, 2, and 3.

[0214] As an embodiment, the target identifier is TI.

[0215] As an embodiment, the target identifier is a TAG ID.

[0216] As an embodiment, the target identifier is a TAG Identity.

[0217] As an embodiment, the first signaling includes the target identifier.

[0218] As an embodiment, the first signaling carries the target identifier.

[0219] As an embodiment, the first signaling includes a TI field, and the target identifier is indicated by the TI field.

[0220] As an embodiment, the first signaling includes a TAG ID field, and the target identifier is indicated by the TAG ID field.

[0221] As an embodiment, the first signaling includes a TAG Identity field, and the target identifier is indicated by the TAG Identity field.

[0222] As an embodiment, whether the first time-frequency resource includes the first timing advance value depends on whether the spatial parameters adopted by the first signal are consistent with the target identifier.

[0223] As an embodiment, the spatial parameters used by the first signal are associated with a TRP (Transmitter Receiver Point).

[0224] As an embodiment, the spatial parameters used by the first signal include: TCI state.

[0225] As an embodiment, the spatial parameters used by the first signal include: TCI-State.

[0226] As an embodiment, the spatial parameters used by the first signal include: UL TCI.

[0227] As an embodiment, the spatial parameters used by the first signal include: UL TCI state.

[0228] As an embodiment, the spatial parameters used by the first signal include: TCI-UL-State.

[0229] As an embodiment, the spatial parameters used by the first signal include: the TCI-UL-State configured for the resource set to which the first signal belongs.

[0230] As an embodiment, the spatial parameters used by the first signal include: the TCI-UL-State indicated by the resource set to which the first signal belongs.

[0231] As an embodiment, a TCI-UL-State described in the present application configures a reference signal, and the reference signal is used to determine the uplink transmit spatial filter adopted for the uplink transmission; the uplink transmission includes a dynamically granted or configured PUSCH or PUCCH transmission in a CC (Component Carrier), and the uplink transmission includes an SRS transmission.

[0232] As an embodiment, a TCI-UL-State described in the present application configures a reference signal, and the reference signal is one of an NZP (Non-Zero Power) CSI-RS (Channel State Information-Reference Signal) resource, an SRS resource, and an SSB.

[0233] As an embodiment, the TCI-UL-State described in the present application configures a reference reference signal, the reference reference signal is an NZP CSI-RS resource, the NZP CSI-RS resource belongs to an NZP CSI-RS resource set, and the NZP CSI-RS resource set is configured with a higher-layer parameter repetition or trs-Info.

[0234] As an embodiment, a TCI-UL-State described in the present application configures a reference signal, the reference signal is an SRS resource, and a higher layer parameter usage of the SRS resource is set to beamManagement.

[0235] As an embodiment, the TCI-UL-State described in the present application configures a reference signal, the reference signal is an SSB resource, and the SSB is associated with the first cell or the additional cell (addition cell) of the first node in the present application.

[0236] As an embodiment, the SSB described in this application refers to: Synchronization Signal Block.

[0237] As an embodiment, the SSB described in this application refers to: SS (Synchronization Signal) / PBCH (Physical Broadcast Channel) block, synchronization signal / physical broadcast channel block.

[0238] Typically, the PBCH, PSS (Primary Synchronization Signal) and SSS (Secondary Synchronization Signal) are received in consecutive symbols and form an SS / PBCH block.

[0239] As an embodiment, when the target identifier is a first identifier and the spatial parameter adopted by the first signal is the first indicated TCI state, or the target identifier is a second identifier and the spatial parameter adopted by the first signal is the second indicated TCI state, the first time-frequency resource includes the function of the first timing advance value.

[0240] As an embodiment, the first identifier is 0 or 1, and the second identifier is 2 or 3.

[0241] As an embodiment, the first identifier is 2 or 3, and the second identifier is 0 or 1.

[0242] As an embodiment, the first identifier is 0 and the second identifier is 1.

[0243] As an embodiment, the first identifier is 1 and the second identifier is 0.

[0244] As an embodiment, when the target identifier is the first identifier and the spatial parameter adopted by the first signal is the first indicated TCI state, the first time-frequency resource includes the function of the first timing advance value.

[0245] As an embodiment, the spatial parameter adopted by the first signal is the first indicated TCI state, which means that the SRS resource set to which the SRS resource of the first signal QCL belongs is configured with the applyIndicatedTCI-State indication as "first".

[0246] As an embodiment, the spatial parameter adopted by the first signal is the first indicated TCI state, which means that the first signal is a dynamically granted PUSCH, and the higher-layer parameter applyIndicatedTCI-State in the PUSCH-config IE corresponding to the first signal is set to first.

[0247] As an embodiment, the spatial parameter adopted by the first signal is the first indicated TCI state, which means that the first signal is a dynamically granted PUSCH, and the higher-layer parameter applyIndicatedTCIState in the PUSCH-config IE corresponding to the first signal is set to first.

[0248] As an embodiment, the spatial parameter adopted by the first signal is the first indicated TCI state, which means that the first signal is a Type 2 configured-grant PUSCH, and the higher-layer parameter applyIndicatedTCI-State in the PUSCH-config IE corresponding to the first signal is set to first.

[0249] As an embodiment, the spatial parameter adopted by the first signal is the first indicated TCI state, which means that the first signal is a Type 2 configured-grant PUSCH, and the higher-layer parameter applyIndicatedTCIState in the PUSCH-config IE corresponding to the first signal is set to first.

[0250] As an embodiment, the spatial parameter adopted by the first signal is the first indicated TCI state, which means that the first signal is Type 1 configured-grant PUSCH, and the higher layer parameter applyIndicatedTCI-State of the ConfiguredGrantConfig IE corresponding to the first signal is set to first.

[0251] As an embodiment, the spatial parameter adopted by the first signal is the first indicated TCI state, which means that the first signal is Type 1 configured-grant PUSCH, and the higher layer parameter applyIndicatedTCIState of the ConfiguredGrantConfig IE corresponding to the first signal is set to first.

[0252] As an embodiment, the spatial parameter adopted by the first signal is the first indicated TCI state, which means that the first signal is PUCCH, and the higher layer parameter applyIndicatedTCI-State in the PUCCH-ResourceExt IE corresponding to the first signal is set to first.

[0253] As an embodiment, the spatial parameter adopted by the first signal is the first indicated TCI state, which means that the first signal is PUCCH, and the higher layer parameter apply-IndicatedTCIState in the PUCCH-ResourceExt IE corresponding to the first signal is set to first.

[0254] As an embodiment, the spatial parameter adopted by the first signal is the first indicated TCI state, which means that the first signal is SRS, and the higher-layer parameter applyIndicatedTCI-State in the SRS resource set to which the first signal belongs is set to first.

[0255] As an embodiment, the spatial parameter adopted by the first signal is the first indicated TCI state, which means that the first signal is SRS, and the higher-layer parameter applyIndicatedTCIState in the SRS resource set to which the first signal belongs is set to first.

[0256] As an embodiment, the spatial parameter adopted by the first signal is the first indicated TCI state, which means that the SRS resource set to which the SRS resource of the first signal QCL belongs is the first SRS resource set of the two SRS resource sets configured by the first node.

[0257] As an embodiment, the spatial parameter adopted by the first signal is the first indicated TCI state, which means that the first signal is Type 1 configured-grant PUSCH, the higher layer parameter applyIndicatedTCI-State of the ConfiguredGrantConfig IE corresponding to the first signal is set to both, and the first signal is associated with the first SRS resource set of the two SRS resource sets configured by the first node for codebook or non-codebook transmission.

[0258] As an embodiment, the spatial parameter adopted by the first signal is the first indicated TCI state, which means that the first signal is Type 1 configured-grant PUSCH, the higher layer parameter applyIndicatedTCIState of the ConfiguredGrantConfig IE corresponding to the first signal is set to both, and the first signal is associated with the first SRS resource set of the two SRS resource sets configured by the first node for codebook or non-codebook transmission.

[0259] As an embodiment, the spatial parameter adopted by the first signal is the first indicated TCI state, which means that: the first node is indicated with two TCI-States or TCI-UL-States, the first signal is PUCCH, and the higher-layer parameter applyIndicatedTCI-State in the PUCCH-ResourceExt IE corresponding to the first signal is set to both, and the first node uses the first TCI-State or TCI-UL-State of the two TCI-States to determine the spatial domain filter (spatial domain filter) used by the first node to send the first signal.

[0260] As an embodiment, the spatial parameter adopted by the first signal is the first indicated TCI state, which means that: the first node is indicated with two TCI-States or TCI-UL-States, the first signal is PUCCH, the higher layer parameter apply-IndicatedTCIState in the PUCCH-ResourceExt IE corresponding to the first signal is set to both, and the first node uses the first TCI-State or TCI-UL-State of the two TCI-States or TCI-UL-States to determine the spatial domain filter for the first node to send the first signal.

[0261] As an embodiment, the spatial parameter adopted by the first signal is the first indicated TCI state, which means that the TCI codepoint of the first signal indicates the first of two TCI States.

[0262] As an embodiment, the spatial parameter adopted by the first signal is the first indicated TCI state, which means that: the first node is indicated with two TCI-States or TCI-UL-States, and the spatial parameter of the first signal is associated with the first TCI-State or TCI-UL-State of the two indicated TCI-States or TCI-UL-States.

[0263] As an embodiment, the spatial parameter adopted by the first signal is the first indicated TCI state, which means that the first node is indicated with two TCI-States or TCI-UL-States, and the first node applies the first TCI-State or TCI-UL-State of the two TCI-States or TCI-UL-States to the transmission of the first signal.

[0264] As an embodiment, the spatial parameter adopted by the first signal is the first indicated TCI state, which means that the first node is indicated with two TCI-States or TCI-UL-States, and the first TCI-State or TCI-UL-State of the two TCI-States or TCI-UL-States is used by the first node to determine the spatial domain filter for sending the first signal.

[0265] As an embodiment, when the target identifier is the second identifier and the spatial parameter used by the first signal is the second indicated TCI state, the first time-frequency resource includes the effect of the first timing advance value.

[0266] As an embodiment, the spatial parameter adopted by the first signal is the second indicated TCI state, which means that the SRS resource set to which the SRS resource of the first signal QCL belongs is configured with the applyIndicatedTCI-State indication of "second".

[0267] As an embodiment, the spatial parameter adopted by the first signal is the second indicated TCI state, which means that the first signal is a dynamically granted PUSCH, and the higher-layer parameter applyIndicatedTCI-State in the PUSCH-config IE corresponding to the first signal is set to second.

[0268] As an embodiment, the spatial parameter adopted by the first signal is the second indicated TCI state, which means that the first signal is a dynamically granted PUSCH, and the higher-layer parameter applyIndicatedTCIState in the PUSCH-config IE corresponding to the first signal is set to second.

[0269] As an embodiment, the spatial parameter adopted by the first signal is the second indicated TCI state, which means that the first signal is a Type 2 configured-grant PUSCH, and the higher-layer parameter applyIndicatedTCI-State in the PUSCH-config IE corresponding to the first signal is set to second.

[0270] As an embodiment, the spatial parameter adopted by the first signal is the second indicated TCI state, which means that the first signal is a Type 2 configured-grant PUSCH, and the higher-layer parameter applyIndicatedTCIState in the PUSCH-config IE corresponding to the first signal is set to second.

[0271] As an embodiment, the spatial parameter adopted by the first signal is the second indicated TCI state, which means that the second signal is Type 1 configured-grant PUSCH, and the higher layer parameter applyIndicatedTCI-State of the ConfiguredGrantConfig IE corresponding to the first signal is set to second.

[0272] As an embodiment, the spatial parameter adopted by the first signal is the second indicated TCI state, which means that the first signal is Type 1 configured-grant PUSCH, and the higher layer parameter applyIndicatedTCIState of the ConfiguredGrantConfig IE corresponding to the first signal is set to second.

[0273] As an embodiment, the spatial parameter adopted by the first signal is the second indicated TCI state, which means that the first signal is PUCCH, and the higher layer parameter applyIndicatedTCI-State in the PUCCH-ResourceExt IE corresponding to the first signal is set to second.

[0274] As an embodiment, the spatial parameter adopted by the first signal is the second indicated TCI state, which means that the first signal is PUCCH, and the higher layer parameter apply-IndicatedTCIState in the PUCCH-ResourceExt IE corresponding to the first signal is set to second.

[0275] As an embodiment, the spatial parameter adopted by the first signal is the second indicated TCI state, which means that the first signal is SRS, and the higher-layer parameter applyIndicatedTCI-State in the SRS resource set to which the first signal belongs is set to second.

[0276] As an embodiment, the spatial parameter adopted by the first signal is the second indicated TCI state, which means that the first signal is SRS, and the higher-layer parameter applyIndicatedTCIState in the SRS resource set to which the first signal belongs is set to second.

[0277] As an embodiment, the spatial parameter adopted by the first signal is the second indicated TCI state, which means that the SRS resource set to which the SRS resource of the first signal QCL belongs is the second SRS resource set of the two SRS resource sets configured by the first node.

[0278] As an embodiment, the spatial parameter adopted by the first signal is the second indicated TCI state, which means that the first signal is Type 1 configured-grant PUSCH, the higher layer parameter applyIndicatedTCI-State of the ConfiguredGrantConfig IE corresponding to the first signal is set to both, and the first signal is associated with the second SRS resource set of the two SRS resource sets configured by the first node for codebook or non-codebook transmission.

[0279] As an embodiment, the spatial parameter adopted by the first signal is the second indicated TCI state, which means that the first signal is Type 1 configured-grant PUSCH, the higher layer parameter applyIndicatedTCIState of the ConfiguredGrantConfig IE corresponding to the first signal is set to both, and the first signal is associated with the second SRS resource set of the two SRS resource sets configured by the first node for codebook or non-codebook transmission.

[0280] As an embodiment, the spatial parameter adopted by the first signal is the second indicated TCI state, which means that: the first node is indicated with two TCI-States or TCI-UL-States, the first signal is PUCCH, the higher layer parameter applyIndicatedTCI-State in the PUCCH-ResourceExt IE corresponding to the first signal is set to both, and the first node uses the second TCI-State or TCI-UL-State of the two TCI-States or TCI-UL-States to determine the spatial domain filter for the first node to send the first signal.

[0281] As an embodiment, the spatial parameter adopted by the first signal is the second indicated TCI state, which means that: the first node is indicated with two TCI-States or TCI-UL-States, the first signal is PUCCH, the higher layer parameter apply-IndicatedTCIState in the PUCCH-ResourceExt IE corresponding to the first signal is set to both, and the first node uses the second TCI-State or TCI-UL-State of the two TCI-States or TCI-UL-States to determine the spatial domain filter for the first node to send the first signal.

[0282] As an embodiment, the spatial parameter adopted by the first signal is the second indicated TCI state, which means that the TCI codepoint of the first signal indicates the second of the two TCI States.

[0283] As an embodiment, the spatial parameter adopted by the first signal is the second indicated TCI state, which means that: the first node is indicated with two TCI-States or TCI-UL-States, and the spatial parameter of the first signal is associated with the second TCI-State or TCI-UL-State of the two indicated TCI-States or TCI-UL-States.

[0284] As an embodiment, the spatial parameter adopted by the first signal is the second indicated TCI state, which means that the first node is indicated with two TCI-States or TCI-UL-States, and the first node applies the second TCI-State or TCI-UL-State of the two TCI-States or TCI-UL-States to the transmission of the first signal.

[0285] As an embodiment, the spatial parameter adopted by the first signal is the second indicated TCI state, which means that the first node is indicated with two TCI-States or TCI-UL-States, and the second TCI-State or TCI-UL-State of the two TCI-States or TCI-UL-States is used by the first node to determine the spatial domain filter for sending the first signal.

[0286] As an embodiment, the first time-frequency resource includes the first timing advance value, which means that the first timing advance value is used to determine the uplink timing of the first signal sent in the first time-frequency resource.

[0287] As an embodiment, the first time-frequency resource includes the first timing advance value, which means that the first timing advance value is used to determine the first uplink timing, and the uplink frame where the first time-frequency resource is located is transmitted according to the first uplink timing.

[0288] As an embodiment, the first time-frequency resource includes the first timing advance value, which means that the timing of the first node for the first time-frequency resource is offset by the first time value compared with the downlink timing of the first node, and the first time value includes the first timing advance value.

[0289] As an embodiment, the first time-frequency resource includes the first timing advance value, which means that the first timing advance value is used to determine a first time value, and the timing of the first node for the first time-frequency resource is offset by the first time value compared to the downlink timing at the first node.

[0290] As an embodiment, the first time-frequency resource includes the first 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 first timing advance value.

[0291] As an embodiment, the first time-frequency resource includes the first timing advance value, which means that the first timing advance value is used to determine a first time value, and the start time of the uplink frame corresponding to the first time-frequency resource is advanced by the first time value compared to the start time of the downlink frame with the same frame number.

[0292] As an embodiment, when the target identifier is the first identifier and the spatial parameter adopted by the first signal is the second indicated TCI state, or the target identifier is the second identifier and the spatial parameter adopted by the first signal is the first indicated TCI state, the first time-frequency resource does not include the effect of the first timing advance value.

[0293] As an embodiment, when the target identifier is the first identifier and the spatial parameter used by the first signal is the second indicated TCI state, the first time-frequency resource does not include the effect of the first timing advance value.

[0294] As an embodiment, when the target identifier is the second identifier and the spatial parameter used by the first signal is the first indicated TCI state, the first time-frequency resource does not include the effect of the first timing advance value.

[0295] As an embodiment, the meaning that the first time-frequency resource does not include the effect of the first timing advance value includes: the first timing advance value is not used to determine the uplink timing of the first signal sent in the first time-frequency resource.

[0296] As an embodiment, the meaning that the first time-frequency resource does not include the function of the first timing advance value includes: the first timing advance value is used to determine the first uplink timing, and the uplink frame where the first time-frequency resource is located is not transmitted according to the first uplink timing.

[0297] As an embodiment, the first time-frequency resource includes the first timing advance value, which means that the timing of the first node for the first time-frequency resource is offset by the second time value compared with the downlink timing of the first node, and the second time value does not include the first timing advance value.

[0298] As an embodiment, the meaning of the first time-frequency resource not including the first 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 first timing advance value.

[0299] Example 2

[0300] Example 2 illustrates a schematic diagram of a network architecture according to an embodiment of the present application, as shown in Figure 2.

[0301] 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.

[0302] As an embodiment, the first node in the present application includes the UE 201.

[0303] As an embodiment, the second node in this application includes the node 203.

[0304] As an embodiment, the node 203 is a macro cell base station.

[0305] As an embodiment, the node 203 is a micro cell base station.

[0306] As an embodiment, the node 203 is a pico cell base station.

[0307] As an embodiment, the node 203 is a home base station (Femtocell).

[0308] As an embodiment, the node 203 is a base station device that supports a large delay difference.

[0309] As an embodiment, the node 203 is a flying platform device.

[0310] As an embodiment, the node 203 is a satellite device.

[0311] As an embodiment, the node 203 is a test device (eg, a transceiver that simulates some functions of a base station, a signaling tester).

[0312] As an embodiment, the node 203 is a UL TRP.

[0313] As an embodiment, the node 203 is a DL TRP.

[0314] As an embodiment, the node 203 includes a traditional uplink receiving point and a remote UL TRP.

[0315] As an embodiment, the UE 201 includes a mobile phone.

[0316] As an embodiment, the UE 201 is a vehicle including a car.

[0317] 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.

[0318] 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.

[0319] As an embodiment, the wireless link between the node 203 and the UE 201 includes a cellular network link.

[0320] As an embodiment, the node 203 and the UE 201 are connected via a Uu air interface.

[0321] As an embodiment, the sender of the first signaling includes the node 203.

[0322] As an embodiment, the recipient of the first signaling includes the UE 201.

[0323] As an embodiment, the sender of the first signal includes the UE 201.

[0324] As an embodiment, the receiver of the first signal includes the node 203.

[0325] As an embodiment, the receiver of the first signal includes the node 204.

[0326] As an embodiment, the UE 201 supports UL / DL asymmetric deployment.

[0327] As an embodiment, the node 203 supports UL / DL asymmetric deployment.

[0328] As an embodiment, the node 203 and the node 204 support UL / DL asymmetric deployment.

[0329] As an embodiment, the node 203 supports shutting down DL transmission.

[0330] As an embodiment, the node 204 supports shutting down DL transmission.

[0331] As an embodiment, the UE 201 supports multi-panel (antenna panel) / TRP transmission based on multi-TA.

[0332] As an embodiment, the UE 201 supports the Unified TCI framework.

[0333] As an embodiment, the UE 201 supports a 5G system.

[0334] As an embodiment, the node 203 supports a 5G system.

[0335] As an embodiment, the UE 201 supports at least the 6G system.

[0336] As an embodiment, the node 203 supports at least a 6G system.

[0337] Example 3

[0338] 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 .

[0339] 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.).

[0340] As an embodiment, the wireless protocol architecture in FIG3 is applicable to the first node in this application.

[0341] As an embodiment, the wireless protocol architecture in FIG3 is applicable to the second node in this application.

[0342] As an embodiment, the first signaling is generated by the MAC 302 or MAC 352.

[0343] As an embodiment, the first signaling is generated by the PHY 301 or PHY 351.

[0344] As an embodiment, the first signal is generated by the PHY 301 or PHY 351 .

[0345] As an embodiment, the target signaling described in this application is generated in the RRC 306.

[0346] As an embodiment, the higher layer mentioned in this application refers to a layer above the physical layer.

[0347] As an embodiment, the higher layer described in the present application includes a MAC layer.

[0348] As an embodiment, the higher layer described in the present application includes an RRC layer.

[0349] Example 4

[0350] 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.

[0351] 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 .

[0352] 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 .

[0353] 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.

[0354] 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.

[0355] 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.

[0356] 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.

[0357] 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 with the at least one processor. The second communication device 450 device receives at least first signaling, the first signaling indicating a first timing advance value; sends a first signal in a first time-frequency resource; the first signaling indicates a target identifier; whether the first time-frequency resource includes the effect of the first timing advance value depends on whether the spatial parameters used by the first signal are consistent with the target identifier; when the target identifier is the first identifier and the spatial parameters used by the first signal are the first indicated TCI state, or when the target identifier is the second identifier and the spatial parameters used by the first signal are the second indicated TCI state, the first time-frequency resource includes the effect of the first timing advance value; when the target identifier is the first identifier and the spatial parameters used by the first signal are the second indicated TCI state, or when the target identifier is the second identifier and the spatial parameters used by the first signal are the first indicated TCI state, the first time-frequency resource does not include the effect of the first timing advance value.

[0358] As an embodiment, the second communication device 450 includes: a memory storing a computer-readable instruction program, wherein the computer-readable instruction program generates actions when executed by at least one processor, and the actions include: receiving a first signaling; and sending a first signal in a first time-frequency resource.

[0359] 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 being configured to be used with the at least one processor. The first communication device 410 device at least sends first signaling, the first signaling indicating a first timing advance value; receives a first signal in a first time-frequency resource; the first signaling indicates a target identifier; whether the first time-frequency resource includes the effect of the first timing advance value depends on whether the spatial parameters used by the first signal are consistent with the target identifier; when the target identifier is the first identifier and the spatial parameters used by the first signal are the first indicated TCI state, or when the target identifier is the second identifier and the spatial parameters used by the first signal are the second indicated TCI state, the first time-frequency resource includes the effect of the first timing advance value; when the target identifier is the first identifier and the spatial parameters used by the first signal are the second indicated TCI state, or when the target identifier is the second identifier and the spatial parameters used by the first signal are the first indicated TCI state, the first time-frequency resource does not include the effect of the first timing advance value.

[0360] As an embodiment, the first communication device 410 includes: a memory storing a computer-readable instruction program, wherein the computer-readable instruction program generates actions when executed by at least one processor, and the actions include: sending a first signaling; receiving a first signal in a first time-frequency resource.

[0361] As an embodiment, the first node in this application includes the second communication device 450.

[0362] As an embodiment, the second node in this application includes the first communication device 410.

[0363] 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.

[0364] 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 in a first time-frequency resource; 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 in a first time-frequency resource.

[0365] 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.

[0366] Example 5

[0367] Example 5 illustrates a flow chart 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.

[0368] For the first node U1, the target signaling is received in step S5110; the first signaling is received in step S510; and the first signal is sent in the first time-frequency resource in step S511.

[0369] For the second node N2, target signaling is sent in step S5210; first signaling is sent in step S520; and a first signal is received in a first time-frequency resource in step S511.

[0370] In Example 5, the first signaling indicates a first timing advance value; the first signaling indicates a target identifier; whether the first time-frequency resource includes the effect of the first timing advance value depends on whether the spatial parameter adopted by the first signal is consistent with the target identifier; when the target identifier is the first identifier and the spatial parameter adopted by the first signal is the first indicated TCI state, or the target identifier is the second identifier and the spatial parameter adopted by the first signal is the second indicated TCI state, the first time-frequency resource includes the effect of the first timing advance value; when the target identifier is the first identifier and the spatial parameter adopted by the first signal is the second indicated TCI state, or the target identifier is the second identifier and the spatial parameter adopted by the first signal is the first indicated TCI state, the first time-frequency resource does not include the effect of the first timing advance value.

[0371] As an embodiment, the first node U1 is the first node in this application.

[0372] As an embodiment, the second node N2 is the second node in this application.

[0373] As an embodiment, the air interface between the second node N2 and the first node U1 includes a wireless interface between a base station device and a user equipment.

[0374] As an embodiment, the air interface between the second node N2 and the first node U1 includes a wireless interface between a relay node device and a user equipment.

[0375] As an embodiment, the air interface between the second node N2 and the first node U1 includes a wireless interface between user equipments.

[0376] As an embodiment, the air interface between the second node N2 and the first node U1 includes one or more of a wireless interface between the TRP and the user equipment, a wireless interface between the CU (Centralized Unit) and the user equipment, or a wireless interface between the DU (Distributed Unit) and the user equipment.

[0377] As an embodiment, the second node N2 and the first node U1 communicate with each other via a Uu interface.

[0378] As an embodiment, the second node N2 is a base station maintaining a service cell of the first node U1.

[0379] As an embodiment, the first signaling is transmitted on a physical layer control channel (only used to transmit physical layer control signaling).

[0380] As an embodiment, the first signaling is transmitted on a physical layer data channel (transmitting user data).

[0381] As an embodiment, the physical layer channel occupied by the first signaling includes PDCCH (Physical Downlink Control CHannel, physical layer control signal).

[0382] As an embodiment, the physical layer channel occupied by the first signaling includes PDSCH (Physical Downlink Shared CHannel, physical layer data signal).

[0383] As an embodiment, the steps in box F51 in FIG. 5 exist; the method applied to the first node U1 in the present application includes: receiving target signaling; the target signaling indicates at least two uplink RS resource sets described in the present application.

[0384] As a sub-embodiment of this embodiment, the at least two uplink RS resource sets include at least one uplink RS resource set, the one uplink RS resource set includes at least one uplink RS resource, the one uplink RS resource is configured as a reference downlink reference signal resource, and the one uplink RS resource is configured with a path loss offset.

[0385] As an embodiment, the target signaling is higher layer signaling.

[0386] As an embodiment, the target signaling includes RRC signaling.

[0387] As an embodiment, the target signaling is RRC signaling.

[0388] As an embodiment, the target signaling includes one or more RRC IEs.

[0389] As an embodiment, the target signaling includes one or more fields in an RRC IE.

[0390] As an embodiment, the target signaling includes ServingCellConfig IE.

[0391] As an embodiment, the target signaling includes BWP-UplinkDedicated IE.

[0392] As an embodiment, the target signaling includes SRS-Config IE.

[0393] As an embodiment, the target signaling includes one or more fields in the SRS-Config IE.

[0394] As an embodiment, the target signaling includes the srs-ResourceSetToAddModList field.

[0395] As an embodiment, the target signaling includes the srs-ResourceSetToAddModListDCI-0-2 field.

[0396] As an embodiment, the target signaling includes the srs-ResourceSetToReleaseList field.

[0397] As an embodiment, the target signaling includes the srs-ResourceSetToReleaseListDCI-0-2 field.

[0398] As an embodiment, the target signaling includes SRS-ResourceSet IE.

[0399] As an embodiment, the target signaling includes SRS-Resource IE.

[0400] As an embodiment, the name of the RRC signaling carrying the target signaling includes SRS.

[0401] As an embodiment, the downlink reference signal resource is a reference signal resource used for path loss (PL) estimation.

[0402] As an embodiment, the downlink reference signal resource corresponds to a reference signal resource identifier.

[0403] As an embodiment, the downlink reference signal resource corresponds to a path loss reference signal resource identifier.

[0404] As an embodiment, the downlink reference signal resource corresponds to pathlossReferenceRS-Id.

[0405] As an embodiment, the downlink reference signal resource includes at least one downlink reference signal.

[0406] As an embodiment, the downlink reference signal resource includes one of a CSI-RS resource and an SSB.

[0407] As an embodiment, the downlink reference signal resources include CSI-RS resources.

[0408] As an embodiment, the downlink reference signal resource is a CSI-RS resource.

[0409] As an embodiment, the downlink reference signal resource is an NZP CSI-RS resource.

[0410] As an embodiment, the downlink reference signal resource corresponds to an NZP-CSI-RS-ResourceId.

[0411] As an embodiment, the downlink reference signal resource includes SSB.

[0412] As an embodiment, the downlink reference signal resource is SSB.

[0413] As an embodiment, the downlink reference signal resource corresponds to an SSB-Index.

[0414] As an embodiment, the downlink reference signal resource corresponds to an ssb-Index.

[0415] As an embodiment, the unit of the path loss offset is dB (deciBel, decibel).

[0416] As an embodiment, the value of the path loss offset is not 0.

[0417] As an embodiment, the path loss offset is configured or indicated through higher layer signaling.

[0418] As an embodiment, the path loss offset is configured or indicated through RRC signaling.

[0419] As an embodiment, the path loss offset is indicated through dynamic signaling.

[0420] As an embodiment, the path loss offset is configured, indicated, or updated via MAC CE.

[0421] As an embodiment, the path loss offset is not associated with a downlink RS.

[0422] As an embodiment, the path loss offset is not associated with a downlink reference signal resource.

[0423] As an embodiment, the path loss offset is not obtained through downlink measurement.

[0424] As an embodiment, the path loss offset is not obtained by the first node by measuring the reference downlink reference signal resource.

[0425] As an embodiment, the path loss offset is associated with an SRS resource set.

[0426] As an embodiment, the path loss offset is associated with a TRP.

[0427] As an embodiment, the path loss offset is associated with a UL TRP.

[0428] As an embodiment, the path loss offset is associated with a UL TCI state.

[0429] As an embodiment, the path loss offset is associated with a UL-TCI-State.

[0430] As an embodiment, the uplink RS resource is configured with a reference downlink reference signal resource, which means that the spatial parameter of the uplink RS resource is configured with the reference downlink reference signal resource.

[0431] As an embodiment, the uplink RS resource is configured to refer to a downlink reference signal resource, which means that the TCI state indicated or configured by the uplink RS resource is configured to refer to the downlink reference signal resource.

[0432] As an embodiment, the downlink reference signal resource that the uplink RS resource is configured to reference means that the downlink reference signal resource is configured as a reference RS associated with the spatial parameter of the uplink RS resource.

[0433] As an embodiment, the uplink RS resource is configured with a reference downlink reference signal resource, which means that the spatial parameter of the uplink RS resource is configured with the reference downlink reference signal resource.

[0434] As an embodiment, the downlink reference signal resource to which the uplink RS resource is configured for reference means that the downlink reference signal resource is configured as an RS associated with the uplink RS resource.

[0435] As an embodiment, the downlink reference signal resource that the uplink RS resource is configured to reference means that the downlink reference signal resource is configured as the PL Reference RS of the uplink RS resource.

[0436] As an embodiment, the downlink reference signal resource that the uplink RS resource is configured to reference means that the spatial reception parameter of the downlink reference signal resource is used to determine the spatial transmission parameter of the signal sent in the uplink RS resource.

[0437] As an embodiment, the uplink RS resource is configured with a reference downlink reference signal resource, which means that the transmission power value of the RS in the uplink RS resource when transmitting depends on the reference downlink reference signal resource.

[0438] As an embodiment, the second node N2 includes a DL TRP and at least one UL TRP, the sender of the first signaling is the DL TRP, and the receiver of the first signal is one UL TRP among the at least one UL TRP.

[0439] As a sub-embodiment of this embodiment, the one UL TRP and the one DL TRP are co-located.

[0440] As a sub-embodiment of this embodiment, the one UL TRP and the one DL TRP are not co-located.

[0441] As an embodiment, the target signaling is transmitted on a physical layer data channel (transmitting user data).

[0442] As an embodiment, the target signaling is transmitted on a physical layer control channel (only used to transmit physical layer control signaling).

[0443] As an embodiment, the physical layer channel occupied by the target signaling includes PDSCH.

[0444] As an embodiment, the physical layer channel occupied by the target signaling includes PDCCH.

[0445] As an embodiment, step S510 is before step S511; step S520 is before step S521.

[0446] As an embodiment, the steps in box F51 in FIG. 5 exist; the steps in box F51 are before the step S510.

[0447] As an embodiment, the steps in box F51 in FIG. 5 exist; the steps in box F51 are before the step S520.

[0448] Example 6

[0449] Embodiment 6 illustrates a first schematic diagram of the configuration of a cell targeted by a first timing advance value according to an embodiment of the present application, as shown in FIG6 .

[0450] In embodiment 6, the cell targeted by the first timing advance value is configured with at least two uplink RS resource sets, and the two uplink RS resource sets are respectively associated with the TCI state indicated by the first indication and the TCI state indicated by the second indication.

[0451] As an embodiment, the cell targeted by the first timing advance value includes: the cell indicated by the first timing advance value.

[0452] As an embodiment, the cell targeted by the first timing advance value includes: a cell that adopts the first timing advance value.

[0453] As an embodiment, the cell targeted by the first timing advance value includes the first cell in this application.

[0454] As an embodiment, the uplink RS resource set includes an SRS resource set.

[0455] As an embodiment, the uplink RS resource set includes a DMRS resource set.

[0456] As an embodiment, the two uplink RS resource sets are two SRS resource sets.

[0457] As an embodiment, the two uplink RS resource sets are two SRS resource sets, and the two SRS resource sets are both used for codebook-based or non-codebook-based uplink transmission.

[0458] As an embodiment, the two uplink RS resource sets are two SRS resource sets, and both of the two SRS resource sets are used for codebook-based uplink transmission.

[0459] As an embodiment, the two uplink RS resource sets are two SRS resource sets, and both of the two SRS resource sets are used for non-codebook-based uplink transmission.

[0460] As an embodiment, the two uplink RS resource sets are two SRS resource sets, and both of the two SRS resource sets are used for beam management.

[0461] As an embodiment, the two uplink RS resource sets are respectively the first uplink RS resource set and the second uplink RS resource set, the uplink RS resources corresponding to the TCI state indicated by the first one belong to the first uplink RS resource set, and the uplink RS resources corresponding to the TCI state indicated by the second one belong to the second uplink RS resource set.

[0462] As an embodiment, the two uplink RS resource sets are respectively the first uplink RS resource set and the second uplink RS resource set, the uplink RS resource corresponding to the TCI state indicated by the first one is QCL with the uplink RS resource in the first uplink RS resource set, and the uplink RS resource corresponding to the TCI state indicated by the second one is QCL with the uplink RS resource in the second uplink RS resource set.

[0463] As an embodiment, the two uplink RS resource sets are respectively the first SRS resource set and the second SRS resource set, the first SRS resource set is configured with higher-layer parameters followUnifiedTCI-StateSRS and applyIndicatedTCI-State, and the higher-layer parameter applyIndicatedTCI-State is set to first; the first SRS resource set is configured with higher-layer parameters followUnifiedTCI-StateSRS and applyIndicatedTCI-State, and the higher-layer parameter applyIndicatedTCI-State is set to second.

[0464] As an embodiment, the two uplink RS resource sets are respectively the first SRS resource set and the second SRS resource set, the first SRS resource set is configured with higher-layer parameters followUnifiedTCI-StateSRS and applyIndicatedTCIState, and the higher-layer parameter applyIndicatedTCIState is set to first; the first SRS resource set is configured with higher-layer parameters followUnifiedTCI-StateSRS and applyIndicatedTCIState, and the higher-layer parameter applyIndicatedTCIState is set to second.

[0465] Example 7

[0466] Embodiment 7 illustrates a second schematic diagram of the configuration of a cell targeted by a first timing advance value according to an embodiment of the present application, as shown in FIG7 .

[0467] In embodiment 7, the cell targeted by the first timing advance value is not configured with two coresetPoolIndex.

[0468] As an embodiment, the cell targeted by the first timing advance value is configured with only one coresetPoolIndex.

[0469] As an embodiment, the first cell in this application is not configured with two coresetPoolIndex.

[0470] As an embodiment, in this application, the first cell is configured with only one coresetPoolIndex.

[0471] As an embodiment, the cell targeted by the first timing advance value cannot be configured with both two coresetPoolIndex and the two uplink RS resource sets described in this application.

[0472] Example 8

[0473] Embodiment 8 illustrates a schematic diagram of the transmit power value of the first signal according to an embodiment of the present application, as shown in Figure 8. In Figure 8, the transmit power value of the first signal depends on both the reference downlink reference signal resource and the path loss offset.

[0474] In embodiment 8, the first signal and the one uplink RS resource are QCL.

[0475] As an embodiment, the QCL refers to Quasi Co-Location.

[0476] As an embodiment, the QCL refers to Quasi Co-Located.

[0477] As an embodiment, the QCL described in this application includes: one or more of: Doppler shift, Doppler spread, average delay, delay spread, spatial Tx parameter or spatial Rx parameter.

[0478] As an embodiment, the QCL types described in this application include typeA, typeB, typeC and typeD.

[0479] As an embodiment, the specific definitions of typeA, typeB, typeC and typeD in this application refer to Section 5.1.5 of 3GPP TS 38.214.

[0480] As an embodiment, the unit of the transmission power value of the first signal is dBm (deciBel relative to one milliwatt).

[0481] As an embodiment, the unit of the transmission power value of the first signal is mW (milliWatt).

[0482] As an embodiment, the unit of the transmission power value of the first signal is W (Watt, watt).

[0483] As an embodiment, the first node measures a downlink reference signal in the reference downlink reference signal resource to obtain a first path loss.

[0484] As an embodiment, the first path loss in this application is downstream.

[0485] As an embodiment, the unit of the first path loss in this application is dB.

[0486] As an embodiment, in this application, the first path loss is estimated by the first node.

[0487] As an embodiment, in the present application, the first path loss is obtained by subtracting the received power of the downlink reference signal in the reference downlink reference signal resource measured by the first node from the expected power of the downlink reference signal in the reference downlink reference signal resource.

[0488] As an embodiment, the first path loss in the present application is obtained by subtracting the RSRP (Reference Signal Receiving Power) of the downlink reference signal in the reference downlink reference signal resource measured by the first node from the expected power of the downlink reference signal in the reference downlink reference signal resource.

[0489] As an embodiment, the expected power of the downlink reference signal in the present application is the linear average of the power contributions of all REs (Resource Elements) carrying the downlink reference signal within the operating system bandwidth.

[0490] As an embodiment, the expected power of the downlink reference signal in the present application is the linear average of the power contributions of the REs that carry the configured downlink reference signal within the working system bandwidth.

[0491] As an embodiment, the expected power of the downlink reference signal described in this application is configured by higher layer signaling.

[0492] As an embodiment, the expected power of the downlink reference signal described in this application is configured by RRC signaling.

[0493] As an embodiment, the expected power of the downlink reference signal described in this application is indicated by higher-layer signaling.

[0494] As an embodiment, the expected power of the downlink reference signal described in this application is indicated by RRC signaling.

[0495] As an embodiment, the RSRP obtained by measuring the downlink reference signal in this application is the RSRP filtered by a higher layer.

[0496] As an embodiment, the RSRP obtained by measuring the downlink reference signal in the present application is the RSRP of Layer 3 (Layer 3, L3).

[0497] As an embodiment, the RSRP obtained by measuring the downlink reference signal in this application is L3-RSRP.

[0498] As an embodiment, the unit of RSRP obtained by measuring the downlink reference signal in this application is dBm.

[0499] As an embodiment, the unit of RSRP obtained by measuring the downlink reference signal in this application is mW.

[0500] As an embodiment, the unit of RSRP obtained by measuring the downlink reference signal in this application is W.

[0501] As an embodiment, when the first signal and the one uplink RS resource are QCL, the transmit power value of the first signal depends on the first path loss and the path loss offset in this application.

[0502] As an embodiment, when the first signal and the one uplink RS resource are QCL, the transmit power value of the first signal is linearly correlated with the second path loss, and the second path loss depends on the first path loss and the path loss offset in this application.

[0503] As a sub-embodiment of this embodiment, the second path loss is equal to the sum of the first path loss and the path loss offset.

[0504] As a sub-embodiment of this embodiment, the second path loss is equal to the difference between the first path loss and the path loss offset.

[0505] As an embodiment, the transmit power value of the first signal is linearly correlated with the sum of the first path loss and the path loss offset.

[0506] As an embodiment, the transmit power value of the first signal is linearly correlated with the difference between the first path loss and the path loss offset.

[0507] Example 9

[0508] Embodiment 9 illustrates a schematic diagram of TAs in an uplink and downlink asymmetric scenario according to an embodiment of the present application, as shown in FIG9. In FIG9, the first cell is the first cell in the present application, the first cell includes a TAG, the one TAG maintains two TAs, TA#1 and TA#2, and the target identifier in the present application indicates TA#1 or TA#2.

[0509] As an embodiment, the first cell is configured with only one CORESET Pool.

[0510] As an embodiment, the first cell is configured with only one CORESET Pool Id.

[0511] As an embodiment, the target identifier in this application explicitly indicates TA#1 or TA#2.

[0512] As an embodiment, the target identifier in this application implicitly indicates the TA#1 or TA#2.

[0513] As an embodiment, the target identifier in this application indicates the TA#1, and the first timing advance value is the TA#1.

[0514] As an embodiment, the target identifier in this application indicates TA#2, and the first timing advance value is TA#2.

[0515] Example 10

[0516] Embodiment 10 illustrates a schematic diagram of applying the present application in an uplink and downlink asymmetric scenario according to an embodiment of the present application, as shown in FIG10. In FIG10, case (a) indicates that the receiver of the first signal and the sender of the first signaling are co-located; case (b) indicates that the receiver of the first signal and the sender of the first signaling are not co-located.

[0517] As an embodiment, the UL TRP shown in FIG10 only receives uplink transmissions.

[0518] As an embodiment, the base station in FIG10 is a base station maintaining a serving cell of the terminal.

[0519] As an embodiment, the first signaling and the first signal in FIG10 are transmitted in the same serving cell.

[0520] As an embodiment, the time-frequency resources occupied by the first signaling and the first signal in FIG10 belong to the same serving cell.

[0521] As an embodiment, the receiver of the first signal and the sender of the first signaling are co-located.

[0522] As an embodiment, the receiver of the first signal and the sender of the first signaling are not co-located

[0523] As an embodiment, the base station and the UL TRP are connected via Backhaul.

[0524] As an embodiment, the base station and the UL TRP are connected via a wired connection.

[0525] As an embodiment, the base station and the UL TRP are connected via optical fiber.

[0526] As an embodiment, the baseband processing of the UL TRP is implemented in the base station.

[0527] As an embodiment, the receiver of the first signal is the UL TRP described in Figure 10, the target identifier indicates the UL TRP described in Figure 10, the receiver of the first signal and the sender of the first signaling are not co-located, and the first time-frequency resource includes the function of the first timing advance value.

[0528] As an embodiment, the receiver of the first signal is the UL TRP described in Figure 10, the target identifier indicates the base station described in Figure 10, the receiver of the first signal and the sender of the first signaling are not co-located, and the first time-frequency resource does not include the effect of the first timing advance value.

[0529] As an embodiment, the receiver of the first signal is the base station described in FIG10, the target identifier indicates the base station described in FIG10, the receiver of the first signal and the sender of the first signaling are co-located, and the first time-frequency resource includes the function of the first timing advance value.

[0530] As an embodiment, the receiver of the first signal is the base station described in Figure 10, the target identifier indicates the UL TRP described in Figure 10, the receiver of the first signal and the sender of the first signaling are co-located, and the first time-frequency resource does not include the effect of the first timing advance value.

[0531] Example 11

[0532] Embodiment 11 illustrates a structural block diagram of a processing device in a first node according to an embodiment of the present application, as shown in FIG11 . In FIG11 , the processing device 1100 in the first node includes a first receiver 1101 and a first transmitter 1102 .

[0533] In embodiment 11, the first receiver 1101 receives first signaling, where the first signaling indicates a first timing advance value; and the first transmitter 1102 sends a first signal in a first time-frequency resource.

[0534] In Example 11, the first signaling indicates a target identifier; whether the first time-frequency resource includes the effect of the first timing advance value depends on whether the spatial parameter adopted by the first signal is consistent with the target identifier; when the target identifier is the first identifier and the spatial parameter adopted by the first signal is the first indicated TCI state, or the target identifier is the second identifier and the spatial parameter adopted by the first signal is the second indicated TCI state, the first time-frequency resource includes the effect of the first timing advance value; when the target identifier is the first identifier and the spatial parameter adopted by the first signal is the second indicated TCI state, or the target identifier is the second identifier and the spatial parameter adopted by the first signal is the first indicated TCI state, the first time-frequency resource does not include the effect of the first timing advance value.

[0535] As an embodiment, the target identifier is a TAG ID or the target identifier is a TI, and the cell targeted by the first timing advance value is not configured with two TAGs.

[0536] As an embodiment, the cell targeted by the first timing advance value is configured with at least two uplink RS resource sets, and the two uplink RS resource sets are respectively associated with the TCI state indicated by the first and the TCI state indicated by the second.

[0537] As an embodiment, the cell targeted by the first timing advance value is not configured with two coresetPoolIndex.

[0538] As an embodiment, the first receiver 1101 receives target signaling, and the target signaling indicates the at least two uplink RS resource sets; the at least two uplink RS resource sets include at least one uplink RS resource set, and the one uplink RS resource set includes at least one uplink RS resource, and the one uplink RS resource is configured as a reference downlink reference signal resource, and the uplink RS resource is configured with a path loss offset.

[0539] As an embodiment, when the first signal and the one uplink RS resource are QCL, the transmit power value of the first signal depends on both the downlink reference signal resource and the path loss offset.

[0540] As an embodiment, the uplink RS resources corresponding to the TCI state indicated by the first indication belong to the first uplink RS resource set, and the uplink RS resources corresponding to the TCI state indicated by the second indication belong to the second uplink RS resource set; there is at least one uplink RS resource in the first uplink RS resource set and one uplink RS resource in the second uplink RS resource set that are configured with the same reference downlink reference signal resource.

[0541] As an embodiment, the time-frequency resources occupied by the first time-frequency resources belong to the service cell of the first node, and the service cell is configured with a unified TCI frame.

[0542] As an embodiment, the time-frequency resources occupied by the first time-frequency resources belong to the service cell of the first node, and the service cell is configured with unifiedTCI-StateType.

[0543] As an embodiment, the cell to which the air interface resources occupied by the first signal belong is a serving cell of the first node, and the serving cell is configured with a unified TCI frame.

[0544] As an embodiment, the cell to which the air interface resources occupied by the first signal belong is the serving cell of the first node, and the serving cell is configured with a higher-layer parameter unifiedTCI-StateType.

[0545] As an embodiment, the first timing advance value includes a timing advance between a downlink and an uplink.

[0546] As an embodiment, when the target identifier is a first identifier and the spatial parameter used by the first signal is the first indicated TCI state, or the target identifier is a second identifier and the spatial parameter used by the first signal is the second indicated TCI state, the start time of the uplink frame corresponding to the first time-frequency resource is advanced by a first time value compared to the start time of the downlink frame using the same frame number, and the first time value includes the first timing advance value.

[0547] As an embodiment, when the target identifier is the first identifier and the spatial parameter used by the first signal is the second indicated TCI state, or the target identifier is the second identifier and the spatial parameter used by the first signal is the first indicated TCI state, the start time of the uplink frame corresponding to the first time-frequency resource is advanced by a second time value compared to the start time of the downlink frame using the same frame number, and the second time value does not include the first timing advance value.

[0548] As an embodiment, the uplink RS resource is configured to refer to a downlink reference signal resource, which means that the TCI state indicated or configured by the uplink RS resource is configured to refer to the downlink reference signal resource.

[0549] As an embodiment, the cell targeted by the first timing advance value cannot be configured with both two coresetPoolIndex and the two uplink RS resource sets described in this application.

[0550] As an embodiment, the first node is user equipment.

[0551] As an embodiment, the first node is a relay node device.

[0552] As an embodiment, the first receiver 1101 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.

[0553] As an embodiment, the first transmitter 1102 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.

[0554] Example 12

[0555] Embodiment 12 illustrates a structural block diagram of a processing device in a second node according to an embodiment of the present application, as shown in FIG12 . In FIG12 , the processing device 1200 in the second node includes a second transmitter 1201 and a second receiver 1202 .

[0556] In embodiment 12, the second transmitter 1201 sends a first signaling, where the first signaling indicates a first timing advance value; and the second receiver 1202 sends a first signal in a first time-frequency resource.

[0557] In Example 12, the first signaling indicates a target identifier; whether the first time-frequency resource includes the effect of the first timing advance value depends on whether the spatial parameter adopted by the first signal is consistent with the target identifier; when the target identifier is the first identifier and the spatial parameter adopted by the first signal is the first indicated TCI state, or the target identifier is the second identifier and the spatial parameter adopted by the first signal is the second indicated TCI state, the first time-frequency resource includes the effect of the first timing advance value; when the target identifier is the first identifier and the spatial parameter adopted by the first signal is the second indicated TCI state, or the target identifier is the second identifier and the spatial parameter adopted by the first signal is the first indicated TCI state, the first time-frequency resource does not include the effect of the first timing advance value.

[0558] As an embodiment, the target identifier is a TAG ID or the target identifier is a TI, and the cell targeted by the first timing advance value is not configured with two TAGs.

[0559] As an embodiment, the cell targeted by the first timing advance value is configured with at least two uplink RS resource sets, and the two uplink RS resource sets are respectively associated with the TCI state indicated by the first and the TCI state indicated by the second.

[0560] As an embodiment, the cell targeted by the first timing advance value is not configured with two coresetPoolIndex.

[0561] As an embodiment, the second transmitter 1201 sends target signaling, and the target signaling indicates the at least two uplink RS resource sets; the at least two uplink RS resource sets include at least one uplink RS resource set, and the one uplink RS resource set includes at least one uplink RS resource, and the one uplink RS resource is configured as a reference downlink reference signal resource, and the uplink RS resource is configured with a path loss offset.

[0562] As an embodiment, when the first signal and the one uplink RS resource are QCL, the transmit power value of the first signal depends on both the downlink reference signal resource and the path loss offset.

[0563] As an embodiment, the uplink RS resources corresponding to the TCI state indicated by the first indication belong to the first uplink RS resource set, and the uplink RS resources corresponding to the TCI state indicated by the second indication belong to the second uplink RS resource set; there is at least one uplink RS resource in the first uplink RS resource set and one uplink RS resource in the second uplink RS resource set that are configured with the same reference downlink reference signal resource.

[0564] As an embodiment, the cell to which the time-frequency resources occupied by the first time-frequency resources belong is configured with a unified TCI frame.

[0565] As an embodiment, the cell to which the time-frequency resources occupied by the first time-frequency resources belong is configured with unifiedTCI-StateType.

[0566] As an embodiment, the cell to which the air interface resources occupied by the first signal belong is configured with a unified TCI frame.

[0567] As an embodiment, the cell to which the air interface resources occupied by the first signal belong is configured with a higher-layer parameter unifiedTCI-StateType.

[0568] As an embodiment, when the target identifier is a first identifier and the spatial parameter used by the first signal is the first indicated TCI state, or the target identifier is a second identifier and the spatial parameter used by the first signal is the second indicated TCI state, the start time of the uplink frame corresponding to the first time-frequency resource is advanced by a first time value compared to the start time of the downlink frame using the same frame number, and the first time value includes the first timing advance value.

[0569] As an embodiment, when the target identifier is the first identifier and the spatial parameter used by the first signal is the second indicated TCI state, or the target identifier is the second identifier and the spatial parameter used by the first signal is the first indicated TCI state, the start time of the uplink frame corresponding to the first time-frequency resource is advanced by a second time value compared to the start time of the downlink frame using the same frame number, and the second time value does not include the first timing advance value.

[0570] As an embodiment, the uplink RS resource is configured to refer to a downlink reference signal resource, which means that the TCI state indicated or configured by the uplink RS resource is configured to refer to the downlink reference signal resource.

[0571] As an embodiment, the cell targeted by the first timing advance value cannot be configured with both two coresetPoolIndex and the two uplink RS resource sets described in this application.

[0572] As an embodiment, the second node is a base station device.

[0573] As an embodiment, the second node is user equipment.

[0574] As an embodiment, the second node is a TRP.

[0575] As an embodiment, the second transmitter 1201 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.

[0576] As an embodiment, the second receiver 1202 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.

[0577] 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.

[0578] 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 synchronization of wireless communication, characterized in that: include: A first receiver receives a first signaling, where the first signaling indicates a first timing advance value; A first transmitter sends a first signal in a first time-frequency resource; Among them, the first signaling indicates the target identifier; whether the first time-frequency resource includes the effect of the first timing advance value depends on whether the spatial parameter adopted by the first signal is consistent with the target identifier; when the target identifier is the first identifier and the spatial parameter adopted by the first signal is the first indicated TCI state, or the target identifier is the second identifier and the spatial parameter adopted by the first signal is the second indicated TCI state, the first time-frequency resource includes the effect of the first timing advance value; when the target identifier is the first identifier and the spatial parameter adopted by the first signal is the second indicated TCI state, or the target identifier is the second identifier and the spatial parameter adopted by the first signal is the first indicated TCI state, the first time-frequency resource does not include the effect of the first timing advance value.

2. The first node according to claim 1, wherein: The target identifier is a TAGID or the target identifier is a TI, and the cell targeted by the first timing advance value is not configured with two TAGs.

3. The first node according to claim 1 or 2, characterized in that The cell for which the first timing advance value is targeted is configured with at least two uplink RS resource sets, and the two uplink RS resource sets are respectively associated with the TCI state indicated by the first indication and the TCI state indicated by the second indication.

4. The first node according to claim 3, characterized in that The cell targeted by the first timing advance value is not configured with two coresetPoolIndex.

5. The first node according to claim 3 or 4, characterized in that: include: The first receiver receives target signaling, where the target signaling indicates the at least two uplink RS resource sets; Among them, the at least two uplink RS resource sets include at least one uplink RS resource set, the one uplink RS resource set includes at least one uplink RS resource, the one uplink RS resource is configured as a reference downlink reference signal resource, and the uplink RS resource is configured with a path loss offset.

6. The first node according to claim 5, characterized in that When the first signal and the one uplink RS resource are QCL, the transmit power value of the first signal depends on both the downlink reference signal resource and the path loss offset.

7. The first node according to any one of claims 1 to 6, characterized in that: The uplink RS resources corresponding to the TCI state indicated by the first indication belong to the first uplink RS resource set, and the uplink RS resources corresponding to the TCI state indicated by the second indication belong to the second uplink RS resource set; there is at least one uplink RS resource in the first uplink RS resource set and one uplink RS resource in the second uplink RS resource set that are configured with the same reference downlink reference signal resource.

8. A second node used for uplink synchronization of wireless communication, characterized in that: include: A second transmitter sends a first signaling, where the first signaling indicates a first timing advance value; A second receiver receives a first signal in a first time-frequency resource; Among them, the first signaling indicates the target identifier; whether the first time-frequency resource includes the effect of the first timing advance value depends on whether the spatial parameter adopted by the first signal is consistent with the target identifier; when the target identifier is the first identifier and the spatial parameter adopted by the first signal is the first indicated TCI state, or the target identifier is the second identifier and the spatial parameter adopted by the first signal is the second indicated TCI state, the first time-frequency resource includes the effect of the first timing advance value; when the target identifier is the first identifier and the spatial parameter adopted by the first signal is the second indicated TCI state, or the target identifier is the second identifier and the spatial parameter adopted by the first signal is the first indicated TCI state, the first time-frequency resource does not include the effect of the first timing advance value.

9. A method for a first node used for uplink synchronization of wireless communication, characterized in that: include: receiving first signaling, where the first signaling indicates a first timing advance value; Sending a first signal in a first time-frequency resource; Among them, the first signaling indicates the target identifier; whether the first time-frequency resource includes the effect of the first timing advance value depends on whether the spatial parameter adopted by the first signal is consistent with the target identifier; when the target identifier is the first identifier and the spatial parameter adopted by the first signal is the first indicated TCI state, or the target identifier is the second identifier and the spatial parameter adopted by the first signal is the second indicated TCI state, the first time-frequency resource includes the effect of the first timing advance value; when the target identifier is the first identifier and the spatial parameter adopted by the first signal is the second indicated TCI state, or the target identifier is the second identifier and the spatial parameter adopted by the first signal is the first indicated TCI state, the first time-frequency resource does not include the effect of the first timing advance value.

10. A method for a second node used for uplink synchronization of wireless communication, characterized in that: include: Sending first signaling, where the first signaling indicates a first timing advance value; Receiving a first signal in a first time-frequency resource; Among them, the first signaling indicates the target identifier; whether the first time-frequency resource includes the effect of the first timing advance value depends on whether the spatial parameter adopted by the first signal is consistent with the target identifier; when the target identifier is the first identifier and the spatial parameter adopted by the first signal is the first indicated TCI state, or the target identifier is the second identifier and the spatial parameter adopted by the first signal is the second indicated TCI state, the first time-frequency resource includes the effect of the first timing advance value; when the target identifier is the first identifier and the spatial parameter adopted by the first signal is the second indicated TCI state, or the target identifier is the second identifier and the spatial parameter adopted by the first signal is the first indicated TCI state, the first time-frequency resource does not include the effect of the first timing advance value.

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