Method and device in node used for wireless communication uplink timing

Abstract

The invention discloses a method and a device in a node used for wireless communication uplink timing. A node receives a first information block, the first information block configures an identifier of a first TAG and an identifier of a second TAG for a first cell, the first TAG is associated with a first uplink TCI state, and the second TAG is associated with a second uplink TCI state; the first cell is not indicated to be identified by two control resource set pools; only one of the first uplink TCI state and the second uplink TCI state is configured with a downlink path loss offset. According to the invention, uplink synchronization in wireless communication is optimized, and uplink synchronization is ensured in an uplink and downlink asymmetric scene on the basis of reducing the improvement on the existing standard, so that the overall performance is improved.

Description

Technical Field

[0001] The present application relates to a signal transmission method and device in a wireless communication system, and in particular to an uplink timing method and device. Background Art

[0002] Multi-antenna technology is a key technology in 3GPP (3rd Generation Partner Project) LTE (Long-Term Evolution) system and NR (New Radio) system. It is achieved by configuring multiple antennas at communication nodes, such as base stations or UE (User Equipment) to obtain additional spatial degrees of freedom. Multiple antennas improve communication quality by beamforming to form beams pointing in a specific direction. When multiple antennas belong to multiple TRPs (Transmitter Receiver Points) / panels, additional diversity gain can be obtained by utilizing the spatial differences between different TRPs / panels. Among them, deploying heterogeneous networks so that UEs can receive downlink (DL) transmissions from a gNB but send uplink (UL) transmissions to the gNB or non-co-located TRP / panel is an important enhancement to improve uplink throughput. Furthermore, the TRP / panel receiving the UL can reduce or even shut down DL transmissions to reduce energy consumption.

[0003] In December 2023, the WI (Work Item) of NRMIMO Phase 5 was passed at the RAN (Radio Access Network) #102 plenary meeting. 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 accurately calculate the path loss associated with the UE and the TRP / panel; and supporting two closed-loop PC adjustment states of two SRS (Sounding Resource Signal) used for gNB DLCSI (Channel State Information) acquisition and UL multi-TRP transmission respectively. Summary of the invention

[0004] In the existing standards, in order to avoid transmission interference and ensure that the 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 the (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; at the same time, the UE will start or restart the TAT (TimeAlignmentTimer) corresponding to a TAG (Timing Advance Group), thereby helping the MAC entity determine how long it takes to consider that the TAG associated with the serving cell is consistent in uplink time. Cells with the same timing advance and using the same timing reference are divided into a TAG, and each TAG includes at least one serving cell configured with an uplink. In the Release-17 standard discussion, a serving cell can be configured with 2 TAGs, corresponding to 2 TATs respectively, thereby supporting scenarios with multiple downlink TRPs.

[0005] In the UL / DL asymmetric scenario, the UE may correspond to different beams / TRPs / panels during uplink transmission, and different beams / TRPs / panels may correspond to different TAs. How to support different TAs in a serving cell and the interpretation of the corresponding TAT is a problem that needs to be solved.

[0006] In view of the above problems, the present application discloses a solution. It should be noted that, in the description of the above problems, the NR (New Radio) system is used as an example, and the present application is also applicable to scenarios such as the future 6G system, and achieves technical effects similar to the NR system; further, 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; further, 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 solution for wireless communication, ultra-robust low-latency communication, and networks, etc., can also help reduce hardware complexity and cost. In the absence of conflict, the embodiments and features in any node of the present application can be applied to any other node. In the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other at will.

[0007] In particular, the interpretation of the terms, nouns, functions, and variables in this application (if not otherwise specified) may refer to the definitions in the TS38 series and TS37 series in the technical specifications (TS) of 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 the understanding of this application.

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

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

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

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

[0012] As an example, the interpretation of the terms in the present application refers to the definitions in the Rel-17 version of the specification protocol of 3GPP.

[0013] As an example, the interpretation of the terms in the present application refers to the definitions in the Rel-18 version of the specification protocol of 3GPP.

[0014] As an example, the interpretation of the terms in the present application refers to the definitions in the Rel-19 version of the specification protocol of 3GPP.

[0015] As an example, the interpretation of the terms in the present application refers to the definitions in the Rel-20 version of the specification protocol of 3GPP.

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

[0017] receiving a first information block, where the first information block configures an identifier of a first TAG and an identifier of a second TAG for a first cell, where the first TAG is associated with a first uplink TCI state, and the second TAG is associated with a second uplink TCI state;

[0018] Among them, the first cell is not indicated with two control resource set pool identifiers; only one of the first uplink TCI state and the second uplink TCI state is configured with a downlink path loss offset.

[0019] As an embodiment, the problem to be solved by the present application includes: how to support two TAGs when a serving cell is not configured with two control resource set pools.

[0020] As an embodiment, the problem to be solved by the present application includes: uplink timing of the first node.

[0021] As an embodiment, the problem to be solved by the present application includes: how to solve the problem of multiple uplink timings in a scenario with uplink and downlink asymmetry.

[0022] As an embodiment, the problems to be solved by the present application include: the UE can send uplinks to the base station, and can also send uplinks to a remote TRP specifically used to receive uplinks, and then how to determine the two different uplink timings corresponding to the two links.

[0023] As an embodiment, the characteristics of the above method include: the existing base station supporting uplink and downlink asymmetric scenarios will not configure two CORESET Pools (Control Resource Set Pool) at the same time, and thus the two TAGs introduced for the two CORESET Pools can be applied to the uplink and downlink asymmetric scenarios, thereby reducing standard changes and facilitating implementation.

[0024] As an embodiment, the characteristics of the above method include: in the present application, when the spatial parameters of the uplink signal transmitted by the first node are configured with a path loss offset, it means that the base station is configured with an uplink and downlink asymmetric scenario, and then configures two TAGs and two TATs to support the maintenance of two uplink timings.

[0025] According to one aspect of the present application, the above method is characterized in that it includes:

[0026] receiving a target signaling indicating a target timing advance value;

[0027] The target signaling includes a target identifier, and the target identifier is used to indicate one of the first TAG and the second TAG.

[0028] As an embodiment, the characteristics of the above method include: explicitly indicating TAG to ensure the accuracy of TA adjustment.

[0029] As an embodiment, the characteristics of the above method include: while keeping the existing TAC (Timing Advance Command) structure unchanged, redefining the indication and interpretation of TAT to correspond to the scenario of uplink and downlink asymmetry.

[0030] According to one aspect of the present application, the above method is characterized in that it includes:

[0031] In response to receiving the target signaling, starting or restarting the target TAT;

[0032] The first TAG and the second TAG are associated with a first TAT and a second TAT respectively, and the target TAT is a TAT associated with the TAG indicated by the target identifier in the first TAT and the second TAT.

[0033] As an embodiment, the characteristics of the above method include: establishing a one-to-one correspondence between TAT and TAG to ensure the accuracy of uplink timing.

[0034] According to one aspect of the present application, the above method is characterized in that it includes:

[0035] receiving a first signaling;

[0036] Sending a first signal in a first time-frequency resource;

[0037] Among them, the first signaling indicates the first time-frequency resource; whether the first time-frequency resource includes the target timing advance value depends on the target identifier and the spatial parameters of the first signal.

[0038] As an embodiment, the characteristics of the above method include: redefining the wireless signal in which the TA is effective while continuing to use the number of bits of the TI in the existing TAC, thereby ensuring the accuracy of the uplink timing.

[0039] According to one aspect of the present application, the above method is characterized in that, when the target identifier corresponds to the first TAG and the spatial parameter of the first signal is the first uplink TCI state, or the target identifier corresponds to the second TAG and the spatial parameter of the first signal is the second uplink TCI state, the first time-frequency resource includes the effect of the target timing advance value; when the target identifier corresponds to the first TAG and the spatial parameter of the first signal is the second uplink TCI state, or the target identifier corresponds to the second TAG and the spatial parameter of the first signal is the first uplink TCI state, the first time-frequency resource does not include the effect of the target timing advance value.

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

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

[0042] As an embodiment, the characteristics of the above method include: implicitly determining whether the timing advance indicated in the uplink and downlink asymmetric scenario is effective by determining whether the uplink TCI state includes a path loss offset, thereby distinguishing the timing advance values ​​used by different uplink receiving points.

[0043] As an embodiment, the characteristics of the above method include: the uplink transmission of the first node can be flexibly switched between the base station and the UL TRP without the need for high-level reconfiguration, thereby ensuring the flexibility of scheduling and transmission.

[0044] According to one aspect of the present application, the above method is characterized in that the first node is a user equipment.

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

[0046] The present application discloses a method in a second node used for uplink synchronization of wireless communication, which includes:

[0047] Sending a first information block, where the first information block configures an identifier of a first TAG and an identifier of a second TAG for a first cell, where the first TAG is associated with a first uplink TCI state, and the second TAG is associated with a second uplink TCI state;

[0048] Among them, the first cell is not indicated with two control resource set pool identifiers; only one of the first uplink TCI state and the second uplink TCI state is configured with a downlink path loss offset.

[0049] According to one aspect of the present application, the above method is characterized in that it includes:

[0050] sending a target signaling, wherein the target signaling indicates a target timing advance value;

[0051] The target signaling includes a target identifier, and the target identifier is used to indicate one of the first TAG and the second TAG.

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

[0053] Sending a first signaling;

[0054] Receiving a first signal in a first time-frequency resource;

[0055] Among them, the first signaling indicates the first time-frequency resource; whether the first time-frequency resource includes the target timing advance value depends on the target identifier and the spatial parameters of the first signal.

[0056] According to one aspect of the present application, the above method is characterized in that, when the target identifier corresponds to the first TAG and the spatial parameter of the first signal is the first uplink TCI state, or the target identifier corresponds to the second TAG and the spatial parameter of the first signal is the second uplink TCI state, the first time-frequency resource includes the effect of the target timing advance value; when the target identifier corresponds to the first TAG and the spatial parameter of the first signal is the second uplink TCI state, or the target identifier corresponds to the second TAG and the spatial parameter of the first signal is the first uplink TCI state, the first time-frequency resource does not include the effect of the target timing advance value.

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

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

[0059] According to one aspect of the present application, the above method is characterized in that the second node is a base station.

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

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

[0062] The present application discloses a device for a first node used for uplink synchronization of wireless communication, comprising:

[0063] A first receiver receives a first information block, where the first information block configures a first TAG identifier and a second TAG identifier for a first cell, where the first TAG is associated with a first uplink TCI state, and the second TAG is associated with a second uplink TCI state;

[0064] Among them, the first cell is not indicated with two control resource set pool identifiers; only one of the first uplink TCI state and the second uplink TCI state is configured with a downlink path loss offset.

[0065] The present application discloses a device for a second node used for uplink synchronization of wireless communication, comprising:

[0066] A first transmitter sends a first information block, where the first information block configures a first TAG identifier and a second TAG identifier for a first cell, where the first TAG is associated with a first uplink TCI state, and the second TAG is associated with a second uplink TCI state;

[0067] Among them, the first cell is not indicated with two control resource set pool identifiers; only one of the first uplink TCI state and the second uplink TCI state is configured with a downlink path loss offset.

[0068] As an embodiment, compared with the traditional solution, the present application has the following advantages but not limited to:

[0069] -This application supports uplink multi-beam / TRP / panel transmission based on different timing advance values, improving uplink transmission performance;

[0070] - This application keeps the number of bits of TI in the existing TAC unchanged, and only redefines the interpretation of TI in different scenarios.

[0071] Reduce standard modifications and ensure uplink performance;

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

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

[0074] Figure 1 A flowchart showing first node transmission according to an embodiment of the present application is shown;

[0075] Figure 2 A schematic diagram of a network architecture according to an embodiment of the present application is shown;

[0076] Figure 3 A schematic diagram showing an embodiment of a wireless protocol architecture of a user plane and a control plane according to an embodiment of the present application;

[0077] Figure 4 A schematic diagram showing a first communication device and a second communication device according to an embodiment of the present application is shown;

[0078] Figure 5 A flow chart showing transmission between a first node and a second node according to an embodiment of the present application is shown;

[0079] Figure 6 A flow chart showing transmission between a first node and a second node according to an embodiment of the present application is shown;

[0080] Figure 7 A flow chart showing transmission between a first node and a second node according to an embodiment of the present application is shown;

[0081] Figure 8 A schematic diagram showing an embodiment of an application scenario according to the present application is shown;

[0082] Fig. 9 A schematic diagram showing an embodiment of a TAG configuration according to the present application is shown;

[0083] Fig.10 A structural block diagram of a processing device used in a first node according to an embodiment of the present application is shown;

[0084] Fig.11 A structural block diagram of a processing device used in a second node according to an embodiment of the present application is shown. DETAILED DESCRIPTION

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

[0086] Example 1

[0087] Embodiment 1 illustrates a flowchart of the first node transmission according to an embodiment of the present application, as shown in the attached Figure 1 As shown in the attached Figure 1 In the example, each box represents a step. In particular, the order of the steps in the box does not represent a specific time sequence between the steps.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

[0143] Example 2

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

[0145] Attached Figure 2 A network architecture 200 is illustrated. The network architecture 200 is a network architecture of LTE (Long-Term Evolution), LTE-A (Long-Term Evolution Advanced), 5G system, 5G-Advanced and future 6G system. The network architecture of LTE, LTE-A, 5G system, 5G-Advanced and future 6G system is called EPS (Evolved Packet System). The 5GNR or LTE network architecture may be called 5GS (5G System) / EPS or some other suitable term; the 6G network architecture may be called 6GS (6G System) / EPS or some other suitable term. The network architecture 200 may include one or more UEs 201, RAN (Next Generation Radio Access Network) 202, a core network 210, an HSS (Home Subscriber Server) / UDM (Unified Data Management) 220 and an Internet service 230. . The network architecture 200 can be interconnected with other access networks, but for simplicity these entities / interfaces are not shown. Figure 2As shown, the network architecture 200 provides packet switching services, however, those skilled in the art will readily appreciate that the various concepts presented throughout this application can be extended to networks that provide circuit switching services. RAN 202 includes Node B 203 and other nodes 204. Node 203 provides user and control plane protocol terminations toward UE 201. Node 203 can be connected to 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 wireless base station, a wireless transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a TRP (Transmitter Receiver Point), or some other suitable terminology. Node 203 provides an access point to a core network 210 for UE 201; the core network 210 is a 5GC (5G Core Network, 5G Core Network) / EPC (Evolved Packet Core), or the core network 210 is a 6GC. Examples of UE 201 include cellular phones, smart phones, Session Initiation Protocol (SIP) phones, laptop computers, Personal Digital Assistants (PDAs), satellite radios, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, drones, aircraft, narrowband physical network devices, machine type communication devices, land vehicles, cars, wearable devices, or any other similar functional devices. 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 MME (Mobility Management Entity) / AMF (Authentication Management Field) / SMF (Session Management Function) 211, other MME / AMF / SMF 214, S-GW (Service Gateway) / UPF (User Plane Function) 212, and P-GW (Packet Data Network Gateway) / UPF 213. MME / AMF / SMF 211 is a control node that handles signaling between UE 201 and 5G-CN / EPC 210. In general, MME / AMF / SMF 211 provides bearer and connection management. All user IP (Internet Protocol) packets are transmitted through S-GW / UPF 212, which itself is connected to P-GW / UPF 213. P-GW provides UE IP address allocation and other functions. P-GW / UPF 213 is connected to Internet service 230. Internet service 230 includes operator-specific Internet protocol services, which may specifically include Internet, Intranet, IMS (IP Multimedia Subsystem) and packet switching services.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

[0177] Example 3

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

[0179] Figure 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300, Figure 3The wireless protocol architecture of the control plane 300 for the first communication node device (RSU (Road Side Unit) in UE or V2X (Vehicle to Everything), vehicle-mounted device or vehicle-mounted communication module) and the second node device (gNB, RSU in UE or V2X, vehicle-mounted device or vehicle-mounted communication module), or between two UEs is presented in three layers: Layer 1 (Layer 1, L1), Layer 2 (Layer 2, L2) and Layer 3 (Layer 3, L3). L1 is the lowest layer and implements various PHY (PHYsical layer) signal processing functions. L1 will be referred to as PHY 301 in this article. L2305 is above PHY 301 and is responsible for the link between the first node device and the second node device, or between two UEs through PHY 301. L2305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a 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 provides inter-zone mobility support for the first communication node device between the second communication node device. 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 caused by 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 wireless protocol architecture of the user plane 350 includes layer 1 (L1) and layer 2 (L2). The wireless protocol architecture for the first communication node device and the second communication node device in the user plane 350 is substantially the same as the corresponding layers and sublayers in the control plane 300 for the physical layer 351, the PDCP sublayer 354 in L2355, the RLC sublayer 353 in L2355, and the MAC sublayer 352 in L2355, but the PDCP sublayer 354 also provides header compression for upper layer data packets to reduce wireless transmission overhead. L2355 in the user plane 350 also includes a SDAP (Service Data Adaptation Protocol) sublayer 356, which is responsible for mapping between QoS (Quality of Service) flows and data radio bearers (DRBs) to support business diversity. Although not shown in the figure, the first communication node device may have several upper layers above L2355, including a network layer (e.g., IP (Internet Protocol) layer) terminating at the P-GW on the network side and an application layer terminating at the other end of the connection (e.g., a remote UE, a server, etc.).

[0180] As an example, Figure 3 The wireless protocol architecture in is applicable to the first node in this application.

[0181] As an example, Figure 3 The wireless protocol architecture in is applicable to the second node in this application.

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

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

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

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

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

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

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

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

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

[0191] Example 4

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

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

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

[0195] In transmission from the first communication device 410 to the second communication device 450, at the first communication device 410, upper layer data packets from the core network are provided to the controller / processor 475. The controller / processor 475 implements the functionality of L2. In DL, the controller / processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the second communication device 450 based on various priority metrics. The controller / processor 475 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the second communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for L1 (i.e., physical layer). The transmit processor 416 implements coding and interleaving to facilitate forward error correction (FEC) at the second communication 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-PSK, 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 precoding and non-codebook-based precoding and beamforming processing, to generate one or more parallel streams. The transmit processor 416 then maps each parallel stream to a subcarrier, multiplexes the modulated symbols with a reference signal (e.g., pilot) in the time domain and / or frequency domain, and then uses an Inverse Fast Fourier Transform (IFFT) to generate a physical channel carrying a time domain multi-carrier symbol stream. The multi-antenna transmit processor 471 then performs a transmit analog precoding / beamforming operation on the time domain multi-carrier symbol stream. Each transmitter 418 converts the baseband multi-carrier symbol stream provided by the multi-antenna transmit processor 471 into a radio frequency stream, and then provides it to different antennas 420.

[0196] In the transmission from the first communication device 410 to the second communication device 450, at the second communication device 450, each receiver 454 receives a signal through its corresponding antenna 452. Each receiver 454 recovers the information modulated onto the RF carrier and converts the RF stream into a baseband multi-carrier symbol stream and provides it to the receiving processor 456. The receiving processor 456 and the multi-antenna receiving processor 458 implement various signal processing functions of L1. The multi-antenna receiving processor 458 performs a receiving analog precoding / beamforming operation on the baseband multi-carrier symbol stream from the receiver 454. The receiving processor 456 uses a fast Fourier transform (FFT) to convert the baseband multi-carrier symbol stream after the receiving analog precoding / beamforming operation from the time domain to the frequency domain. In the frequency domain, the physical layer data signal and the reference signal are demultiplexed by the receiving processor 456, where the reference signal will be used for channel estimation, and the data signal is recovered after multi-antenna detection in the multi-antenna receiving processor 458 to any parallel stream with the second communication device 450 as the destination. The symbols on each parallel stream are demodulated and recovered in the receiving processor 456, and soft decisions are generated. The receiving 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 the functions of L2. The controller / processor 459 may be associated with a memory 460 storing program codes and data. The memory 460 may be referred to as a computer-readable medium. In DL, the controller / processor 459 provides multiplexing, packet reassembly, decryption, header decompression, and control signal processing between the transmission and logical channels to recover the 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 ACKnowledgement (ACK) and / or negative ACKnowledgement (Negative ACKnowledgement, NACK) protocols to support HARQ operations.

[0197] In the transmission from the second communication device 450 to the first communication device 410, at the second communication device 450, a data source 467 is used to provide upper layer data packets to the controller / processor 459. The data source 467 represents all protocol layers above L2. Similar to the transmission function at the first communication device 410 described in DL, the controller / processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on the radio resource allocation of the first communication device 410, and implements L2 functions for 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 communication device 410. The transmit processor 468 performs modulation mapping and channel coding processing, and the multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing. Then, the transmit processor 468 modulates the generated parallel stream into a multi-carrier / single-carrier symbol stream, which is then provided to different antennas 452 via the transmitter 454 after analog precoding / beamforming operations in the multi-antenna transmit processor 457. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a radio frequency symbol stream, and then provides it to the antenna 452.

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

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

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

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

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

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

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

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

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

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

[0208] As an embodiment, at least one of {the antenna 420, the transmitter 418, the transmit processor 416, the multi-antenna transmit processor 471, the controller / processor 475, and the memory 476} is used to send a 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 a first signaling.

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

[0210] Example 5

[0211] Embodiment 5 illustrates a first flow chart of transmission between a first node and a second node according to an embodiment of the present application. Figure 5 In the embodiment, the first node U1 and the second node N2 communicate with each other via a wireless link. It should be noted that the sequence in this embodiment does not limit the signal transmission sequence and implementation sequence in this application.

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

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

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

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

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

[0217] Example 6

[0218] Embodiment 6 illustrates a first flow chart of transmission between a first node and a second node according to an embodiment of the present application. Figure 6 In the embodiment, the first node U3 and the second node N4 communicate with each other via a wireless link. It should be noted that the sequence in this embodiment does not limit the signal transmission sequence and implementation sequence in this application.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

[0251] Example 7

[0252] Embodiment 7 illustrates a first flow chart of transmission between a first node and a second node according to an embodiment of the present application. Figure 7 In the embodiment, the first node U5 and the second node N6 communicate with each other via a wireless link. It should be noted that the sequence in this embodiment does not limit the signal transmission sequence and implementation sequence in this application.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

[0274] As an embodiment, the first time-frequency resource includes the target timing advance value, which means that the 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 with the same frame number, and the first time value includes the target timing advance value.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

[0294] Example 8

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

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

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

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

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

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

[0301] Example 9

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

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

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

[0305] Example 10

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

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

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

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

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

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

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

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

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

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

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

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

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

[0319] Embodiment 11

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

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

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

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

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

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

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

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

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

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

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

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

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

[0333] A person of ordinary skill in the art can understand that all or part of the steps in the above method can be completed by instructing the 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 function module, and the present application is not limited to any specific form of software and hardware combination. The user equipment, terminal and UE in the present 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 tools, 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, RSU, drones, test equipment, such as wireless communication equipment such as transceivers or signaling testers that simulate some functions of base stations.

[0334] It should be understood by those skilled in the art that the present invention may be implemented in other specified forms without departing from its core or essential features. Therefore, the embodiments disclosed herein should be considered illustrative rather than restrictive in any way. The scope of the invention is determined by the appended claims rather than the preceding description, and all modifications within their equivalent meanings and regions are considered to be included therein.

Claims

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

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

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

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

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

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

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

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

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

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

Images