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 signaling, and the first signaling initiates a random access process; then sending a first signal; the random access process initiated by the first signaling comprises the first signal; whether the first signaling includes a domain dependency indicating a transmit power value of the first signal is configured with a first path loss offset value. 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 obtains additional spatial freedom by configuring multiple antennas at communication nodes, such as base stations or UE (User Equipment). Multiple antennas use beamforming to form beams pointing in a specific direction to improve communication quality. 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 a heterogeneous network so that the UE 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, the base station triggers the UE to send PRACH (Physical Random Access Channel) by sending PDCCH (Physical Downlink Control Channel) Order to help the base station determine TA (Timing Advance) and maintain uplink timing.

[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 initiate PRACH transmission for TA estimation corresponding to different uplink receiving nodes 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 signaling, wherein the first signaling initiates a random access process;

[0018] sending a first signal;

[0019] The random access process initiated by the first signaling includes the first signal; whether the first signaling includes a field indicating whether the transmission power value of the first signal is configured with a first path loss offset value.

[0020] As an embodiment, the problems to be solved by the present application include: how to determine the TA for the base station and UL-TRP respectively in a scenario where a service cell supports both the base station and UL-TRP to receive uplink transmission.

[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: using PDCCH Order to trigger PRACH transmission for different uplink reception points while reducing the modification to the existing system.

[0023] 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.

[0024] According to one aspect of the present application, the above method is characterized in that, when the first path loss offset value is configured, the first signaling includes the domain indicating the transmit power value of the first signal; when the first path loss offset value is not configured, the first signaling does not include the domain indicating the transmit power value of the first signal.

[0025] As an embodiment, the characteristics of the above method include: determining the composition of the PDCCH Order field and the interpretation of the field based on whether the first path loss offset value is configured, so as to save signaling overhead and improve transmission efficiency.

[0026] According to one aspect of the present application, the above method is characterized in that the first path loss offset value is configured, the first signaling includes a first field, and the first field included in the first signaling indicates whether the transmission power value of the first signal depends on the first path loss offset.

[0027] As an embodiment, the characteristics of the above method include: when the first domain exists, the transmission power value of the first signal is further determined according to the dynamic indication of the first domain, so as to simultaneously support PRACH transmission for the base station and PRACH transmission for UL-TRP to improve flexibility.

[0028] According to one aspect of the present application, the above method is characterized in that the first signal is associated with a downlink signal; the sending power value of the first signal is equal to the smaller value of the first maximum power value and the first power value; when the first domain included in the first signaling indicates that the sending power value of the first signal depends on the first path loss offset, the first power value is equal to the sum of the target power value and the target path loss value, and the target path loss value includes the path loss obtained for the downlink signal and the first path loss offset; when the first domain included in the first signaling indicates that the sending power value of the first signal does not depend on the first path loss offset, the first power value is equal to the sum of the target power value and the target path loss value, and the target path loss value is equal to the path loss obtained for the downlink signal.

[0029] As an embodiment, the characteristics of the above method include: by introducing the first path loss offset value, PRACH transmission for multiple nodes is achieved, thereby adapting to UL / DL asymmetric deployment scenarios.

[0030] According to one aspect of the present application, the above method is characterized in that the bits occupied by the first field included in the first signaling are reserved bits.

[0031] As an embodiment, the characteristics of the above method include: ensuring consistency with the payload of the existing DCI (Downlink Control Information) format, reducing the complexity of system implementation, and improving compatibility.

[0032] According to one aspect of the present application, the above method is characterized in that the first domain included in the first signaling includes only 1 bit, and the first domain indicates whether the first path loss offset is enabled; when the first path loss offset is enabled, the sending power value of the first signal depends on the first path loss offset; when the first path loss offset is not enabled, the sending power value of the first signal does not depend on the first path loss offset.

[0033] According to one aspect of the present application, the above method is characterized in that the first path loss offset is associated with a first TCI state, the first TCI state is associated with at least one SRS resource, and the first signal and the SRS resource are quasi-co-located.

[0034] As an embodiment, the characteristics of the above method include: by associating the first path loss offset with the first TCI state, an integrated design of uplink power control, Beamforming and TA estimation is achieved to achieve system unity.

[0035] According to one aspect of the present application, the above method is characterized in that the first node is a user equipment.

[0036] According to one aspect of the present application, the above method is characterized in that the first node is a relay node.

[0037] The present application discloses a method in a second node used for uplink synchronization of wireless communication, which includes:

[0038] Sending a first signaling, where the first signaling initiates a random access process;

[0039] receiving a first signal;

[0040] The random access process initiated by the first signaling includes the first signal; whether the first signaling includes a field indicating whether the transmission power value of the first signal is configured with a first path loss offset value.

[0041] According to one aspect of the present application, when the first path loss offset value is configured, the first signaling includes the domain indicating the transmit power value of the first signal; when the first path loss offset value is not configured, the first signaling does not include the domain indicating the transmit power value of the first signal.

[0042] According to one aspect of the present application, the above method is characterized in that the first path loss offset value is configured, the first signaling includes a first field, and the first field included in the first signaling indicates whether the transmission power value of the first signal depends on the first path loss offset.

[0043] According to one aspect of the present application, the above method is characterized in that the first signal is associated with a downlink signal; the sending power value of the first signal is equal to the smaller value of the first maximum power value and the first power value; when the first domain included in the first signaling indicates that the sending power value of the first signal depends on the first path loss offset, the first power value is equal to the sum of the target power value and the target path loss value, and the target path loss value includes the path loss obtained for the downlink signal and the first path loss offset; when the first domain included in the first signaling indicates that the sending power value of the first signal does not depend on the first path loss offset, the first power value is equal to the sum of the target power value and the target path loss value, and the target path loss value is equal to the path loss obtained for the downlink signal.

[0044] According to one aspect of the present application, the above method is characterized in that the bits occupied by the first field included in the first signaling are reserved bits.

[0045] According to one aspect of the present application, the above method is characterized in that the first domain included in the first signaling includes only 1 bit, and the first domain indicates whether the first path loss offset is enabled; when the first path loss offset is enabled, the sending power value of the first signal depends on the first path loss offset; when the first path loss offset is not enabled, the sending power value of the first signal does not depend on the first path loss offset.

[0046] According to one aspect of the present application, the above method is characterized in that the first path loss offset is associated with a first TCI state, the first TCI state is associated with at least one SRS resource, and the first signal and the SRS resource are quasi-co-located.

[0047] According to one aspect of the present application, the above method is characterized in that the second node is a base station.

[0048] According to one aspect of the present application, the above method is characterized in that the second node is a user equipment.

[0049] According to one aspect of the present application, the above method is characterized in that the second node is a relay node.

[0050] The present application discloses a device for a first node used for uplink synchronization of wireless communication, comprising:

[0051] A first receiver receives a first signaling, wherein the first signaling initiates a random access process;

[0052] A first transmitter sends a first signal;

[0053] The random access process initiated by the first signaling includes the first signal; whether the first signaling includes a field indicating whether the transmission power value of the first signal is configured with a first path loss offset value.

[0054] The present application discloses a device for a second node used for uplink synchronization of wireless communication, comprising:

[0055] A second transmitter sends a first signaling, where the first signaling initiates a random access process;

[0056] A second receiver receives the first signal;

[0057] The random access process initiated by the first signaling includes the first signal; whether the first signaling includes a field indicating whether the transmission power value of the first signal is configured with a first path loss offset value.

[0058] As an embodiment, compared with the traditional solution, the present application has the following advantages but not limited to:

[0059] -This application supports the transmission of PRACH for different uplink reception points, thereby estimating different TAs and maintaining different uplink synchronizations;

[0060] -Uplink multi-beam / TRP / panel transmission with different timing advance values ​​improves uplink transmission performance;

[0061] - This application keeps the format of PDCCH unchanged, and whether the first field exists is related to the configuration of the first path loss offset value, thereby simplifying the design and reducing signaling overhead;

[0062] -This application supports dynamically indicating that PRACH switches between two uplink reception points, thereby improving flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] 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:

[0064] Figure 1 A flowchart showing first node transmission according to an embodiment of the present application is shown;

[0065] Figure 2 A schematic diagram of a network architecture according to an embodiment of the present application is shown;

[0066] 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;

[0067] 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;

[0068] 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;

[0069] Figure 6 A schematic diagram showing an embodiment of an application scenario according to the present application is shown;

[0070] Figure 7 A structural block diagram of a processing device used in a first node according to an embodiment of the present application is shown;

[0071] Figure 8 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

[0072] 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.

[0073] Example 1

[0074] 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.

[0075] In step 101 , the first node receives a first signaling that initiates a random access process; and in step 102 , sends a first signal.

[0076] In Embodiment 1, the random access process initiated by the first signaling includes the first signal; whether the first signaling includes a domain indicating a transmission power value of the first signal and whether a first path loss offset value is configured.

[0077] As an embodiment, the first signaling includes DCI.

[0078] As an embodiment, the physical layer channel occupied by the first signaling includes PDCCH.

[0079] As an embodiment, the first signaling is a PDCCH Order.

[0080] As an embodiment, the first signaling initiates a random access process.

[0081] As an embodiment, the CRC (Cyclic redundancy check) included in the first signaling is scrambled by C (Cell)-RNTI (Radio Network Temporary Identifier).

[0082] As an embodiment, the FDRA (Frequency domain resource assignment) field included in the first signaling is all 1s.

[0083] As an embodiment, the first signal includes PRACH.

[0084] As an embodiment, the first signal includes a Preamble.

[0085] As an embodiment, the first signal includes Msg1.

[0086] As an embodiment, the first signal includes MsgA.

[0087] As an embodiment, the transmission of the first signal is a response to the reception of the first signaling.

[0088] As an embodiment, the first path loss offset value is configured, and the first signaling includes a domain indicating the transmit power value of the first signal; or, the first path loss offset value is not configured, and the first signaling does not include a domain indicating the transmit power value of the first signal.

[0089] As an embodiment, the meaning that the first path loss offset value is configured includes: the first path loss offset value is configured by the first node.

[0090] As an embodiment, the meaning that the first path loss offset value is configured includes: the first path loss offset value is indicated to the first node.

[0091] As an embodiment, the meaning that the first path loss offset value is configured includes: the first path loss offset value is configured by the second node in the present application.

[0092] As an embodiment, the meaning that the first path loss offset value is configured includes: the first path loss offset value is indicated by the second node.

[0093] As an embodiment, the SSB described in this application refers to: Synchronization Signal Block.

[0094] 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.

[0095] Typically, the reception timings of the PBCH, PSS (Primary Synchronization Signal) and SSS (Secondary Synchronization Signal) are in consecutive symbols and form an SS / PBCH block.

[0096] As an embodiment, the first path loss offset value is associated with an SSB.

[0097] As an embodiment, the first path loss offset value is configured for an SSB.

[0098] As an embodiment, the first path loss offset value is associated with an SSB Index.

[0099] As an embodiment, the first path loss offset value is configured to an SSB Index.

[0100] As an embodiment, the first path loss offset value is associated with a CSI-RS (Channel State Information-Reference Signal).

[0101] As an embodiment, the first path loss offset value is configured for CSI-RS.

[0102] As an embodiment, the first path loss offset value is associated with a CSI-RS resource.

[0103] As an embodiment, the first path loss offset value is configured for a CSI-RS resource.

[0104] As an embodiment, the first path loss offset value is associated with an NZP-CSI-RS-Resource.

[0105] As an embodiment, the first path loss offset value is configured for an NZP-CSI-RS-Resource.

[0106] As an embodiment, the first path loss offset value is associated with an NZP-CSI-RS-ResourceId.

[0107] As an embodiment, the first path loss offset value is configured to an NZP-CSI-RS-ResourceId.

[0108] As an embodiment, the first path loss offset value is associated with a TCI (Transmission configuration indicator) state.

[0109] As an embodiment, the first path loss offset value is configured for a TCI state.

[0110] As a sub-embodiment of the above two embodiments, the TCI state is an uplink TCI state.

[0111] As a sub-embodiment of the above two embodiments, the TCI state is a downlink TCI state.

[0112] As an embodiment, the first path loss offset value is associated with a quasi co-location-Info.

[0113] As an embodiment, the first path loss offset value is configured to a quasi co-location-Info.

[0114] As an embodiment, the unit of the first path loss offset value is dB.

[0115] As an embodiment, the DCI Format corresponding to the first signaling is DCI Format 1_0.

[0116] Example 2

[0117] 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.

[0118] Attached Figure 2 A network architecture 200 is illustrated. The network architecture 200 is a network architecture for LTE (Long-Term Evolution), LTE-A (Long-Term Evolution Advanced), 5G system, 5G-Advanced and future 6G system. The network architecture for 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.

[0119] As an embodiment, the first node in the present application includes the UE 201.

[0120] As an embodiment, the second node in the present application includes the node 203.

[0121] As an embodiment, the node 203 is a macro cell base station.

[0122] As an embodiment, the node 203 is a micro cell base station.

[0123] As an embodiment, the node 203 is a pico cell base station.

[0124] As an embodiment, the node 203 is a home base station (Femtocell).

[0125] As an embodiment, the node 203 is a base station device that supports a large delay difference.

[0126] As an embodiment, the node 203 is a flying platform device.

[0127] As an embodiment, the node 203 is a satellite device.

[0128] As an embodiment, the node 203 is a test device (eg, a transceiver device simulating some functions of a base station, a signaling tester).

[0129] As an embodiment, the UE 201 includes a mobile phone.

[0130] As an embodiment, the UE 201 is a vehicle including a car.

[0131] 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.

[0132] 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.

[0133] As an embodiment, the wireless link between the node 203 and the UE 201 includes a cellular network link.

[0134] As an embodiment, the node 203 and the UE 201 are connected via a Uu air interface.

[0135] As an embodiment, the sender of the first signaling includes the node 203.

[0136] As an embodiment, the recipient of the first signaling includes the UE 201.

[0137] As an embodiment, the receiver of the first signal includes the node 203.

[0138] As an embodiment, the sender of the first signal includes the UE 201.

[0139] As an embodiment, the UE 201 supports UL / DL asymmetric.

[0140] As an embodiment, the UE 201 supports multi-panel / TRP transmission based on multi-TA.

[0141] As an embodiment, the UE 201 supports configuring two CORESET Pools.

[0142] As an embodiment, the UE 201 supports a 5G system.

[0143] As an embodiment, the node 203 supports a 5G system.

[0144] As an embodiment, the UE 201 at least supports the 6G system.

[0145] As an embodiment, the node 203 at least supports the 6G system.

[0146] Example 3

[0147] 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.

[0148] 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 a first communication node device (RSU (Road Side Unit) in UE or V2X (Vehicle to Everything), vehicle-mounted device or vehicle-mounted communication module) and a 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. L2 305 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 L2 355, the RLC sublayer 353 in L2 355, and the MAC sublayer 352 in L2 355, but the PDCP sublayer 354 also provides header compression for upper layer data packets to reduce wireless transmission overhead. The L2 355 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 the diversity of services. Although not shown in the figure, the first communication node device may have several upper layers above L2 355, including a network layer (e.g., 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.).

[0149] As an example, Figure 3 The wireless protocol architecture in is applicable to the first node in this application.

[0150] As an example, Figure 3 The wireless protocol architecture in is applicable to the second node in this application.

[0151] As an embodiment, the first signaling is generated by the PHY 301 or PHY 351.

[0152] As an embodiment, the first signaling is generated by the MAC 302 or MAC 352.

[0153] As an embodiment, the first signaling is generated in the RRC 306.

[0154] As an embodiment, the first signal is generated by the PHY 301 or PHY 351 .

[0155] As an embodiment, the first signal is generated by the MAC 302 or MAC 352.

[0156] Example 4

[0157] 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.

[0158] 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 .

[0159] 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.

[0160] 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.

[0161] 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.

[0162] 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.

[0163] 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.

[0164] 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 at least receives a first signaling, the first signaling initiates a random access process; sends a first signal; the random access process initiated by the first signaling includes the first signal; whether the first signaling includes a domain dependency indicating whether the transmission power value of the first signal is configured with a first path loss offset value.

[0165] 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, wherein the first signaling initiates a random access process; sending a first signal; the random access process initiated by the first signaling includes the first signal; whether the first signaling includes an indication of whether the domain dependence of the transmission power value of the first signal is configured with a first path loss offset value.

[0166] 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 signaling, the first signaling initiates a random access process; receives a first signal; the random access process initiated by the first signaling includes the first signal; whether the first signaling includes a domain dependency indicating whether the transmission power value of the first signal is configured with a first path loss offset value.

[0167] 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, wherein the first signaling initiates a random access process; receiving a first signal; the random access process initiated by the first signaling includes the first signal; whether the first signaling includes an indication of whether the domain dependence of the transmission power value of the first signal is configured with a first path loss offset value.

[0168] As an embodiment, the first node in the present application includes the second communication device 450.

[0169] As an embodiment, the second node in the present application includes the first communication device 410.

[0170] 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.

[0171] 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.

[0172] Example 5

[0173] 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.

[0174] For the first node U1, a first signaling is received in step S510; a first signal is sent in step S511;

[0175] For the second node N2, a first signaling is sent in step S520; and a first signal is received in step S521.

[0176] In Embodiment 5, the random access process initiated by the first signaling includes the first signal; whether the first signaling includes a domain indicating a transmission power value of the first signal and whether a first path loss offset value is configured.

[0177] As an embodiment, the first node U1 is the first node in this application.

[0178] As an embodiment, the second node N2 is the second node in this application.

[0179] Typically, when the first path loss offset value is configured, the first signaling includes the field indicating the transmit power value of the first signal; when the first path loss offset value is not configured, the first signaling does not include the field indicating the transmit power value of the first signal.

[0180] As an embodiment, the field indicating the transmission power value of the first signal included in the first signaling occupies 1 bit.

[0181] As an embodiment, the meaning that the first signaling does not include the field indicating the transmit power value of the first signal includes: the field indicating the transmit power value of the first signal is set to a fixed value.

[0182] As a sub-embodiment of this embodiment, the fixed value is 0.

[0183] As a sub-embodiment of this embodiment, the fixed value is 1.

[0184] As an embodiment, the meaning that the first signaling does not include the field indicating the transmit power value of the first signal includes: the field indicating the transmit power value of the first signal is set to a reserved bit.

[0185] As an embodiment, the meaning that the first signaling does not include the field indicating the transmit power value of the first signal includes: the field indicating the transmit power value of the first signal is set to fill bits.

[0186] Typically, the first path loss offset value is configured, the first signaling includes a first field, and the first field included in the first signaling indicates whether the transmit power value of the first signal depends on the first path loss offset.

[0187] As an embodiment, the first field included in the first signaling includes 1 bit.

[0188] As a sub-embodiment of this embodiment, the value indicated by the first domain included in the first signaling is "1", and the sending power value of the first signal depends on the first path loss offset; the value indicated by the first domain included in the first signaling is "0", and the sending power value of the first signal does not depend on the first path loss offset.

[0189] As a sub-embodiment of this embodiment, the value indicated by the first domain included in the first signaling is "0", and the sending power value of the first signal depends on the first path loss offset; the value indicated by the first domain included in the first signaling is "1", and the sending power value of the first signal does not depend on the first path loss offset.

[0190] As an embodiment, the first field included in the first signaling is a BOOLEAN.

[0191] As a sub-embodiment of this embodiment, the value indicated by the first domain included in the first signaling is "TRUE", and the sending power value of the first signal depends on the first path loss offset; the value indicated by the first domain included in the first signaling is "FALSE", and the sending power value of the first signal does not depend on the first path loss offset.

[0192] Typically, the first signal is associated with a downlink signal; the transmit power value of the first signal is equal to the smaller value between a first maximum power value and a first power value; when the first field included in the first signaling indicates that the transmit power value of the first signal depends on the first path loss offset, the first power value is equal to the sum of a target power value and a target path loss value, and the target path loss value includes the path loss obtained for the downlink signal and the first path loss offset; when the first field included in the first signaling indicates that the transmit power value of the first signal does not depend on the first path loss offset, the first power value is equal to the sum of the target power value and the target path loss value, and the target path loss value is equal to the path loss obtained for the downlink signal.

[0193] As an embodiment, the downlink signal includes CSI-RS.

[0194] As an embodiment, the downlink signal occupies CSI-RS resources.

[0195] As an embodiment, the downlink signal occupies NZP-CSI-RS resources.

[0196] As an embodiment, the downlink signal corresponds to the NZP-CSI-RS resource identifier.

[0197] As an embodiment, the downlink signal includes SSB.

[0198] As an embodiment, the downlink signal corresponds to the SSB Index.

[0199] As an embodiment, the downlink signal includes a downlink reference signal that is quasi-co-located with the DMRS carried by the first signaling.

[0200] As an embodiment, the meaning that the first signal is associated with a downlink signal includes: the first signal and the downlink signal are quasi-co-located.

[0201] As an embodiment, the meaning that the first signal is associated with a downlink signal includes: the first signal and the downlink signal are quasi-co-located.

[0202] As an embodiment, the meaning that the first signal is associated with a downlink signal includes: the downlink signal corresponds to the referenceSignalPower of the first signal.

[0203] As an embodiment, the first maximum power value is the maximum output power configured by the first node.

[0204] As an embodiment, the first maximum power value is for the carrier f of the serving cell c.

[0205] As an embodiment, the first maximum power value is for transmission opportunity i.

[0206] As an embodiment, the first maximum power value is P CMAX,f,c (i).

[0207] As an embodiment, the target power value is a target received power value of the first signal.

[0208] As an embodiment, the target power value is P PRACH,target,f,c .

[0209] As an embodiment, the path loss obtained for the downlink signal is PL b,f,c .

[0210] As an embodiment, the path loss obtained for the downlink signal is obtained by subtracting the RSRP of the downlink signal that has been filtered by a higher layer from the transmission power value of the downlink signal by the first node.

[0211] As an embodiment, the target path loss value includes the path loss obtained for the downlink signal and the first path loss offset, which means that the target path loss value is equal to the sum of the path loss obtained for the downlink signal and the first path loss offset.

[0212] As an embodiment, the target path loss value includes the path loss obtained for the downlink signal and the first path loss offset, which means that the target path loss value is equal to the difference between the path loss obtained for the downlink signal and the first path loss offset.

[0213] As an embodiment, the target path loss value includes the path loss obtained for the downlink signal and the first path loss offset, which means that the target path loss value is equal to the product of the path loss obtained for the downlink signal and the first path loss offset.

[0214] Typically, the bits occupied by the first field included in the first signaling are reserved bits.

[0215] As an embodiment, the reserved bits are Reserved bits.

[0216] Typically, the first domain included in the first signaling includes only 1 bit, and the first domain indicates whether the first path loss offset is enabled; when the first path loss offset is enabled, the transmit power value of the first signal depends on the first path loss offset; when the first path loss offset is not enabled, the transmit power value of the first signal does not depend on the first path loss offset.

[0217] Typically, the first path loss offset is associated with a first TCI state, the first TCI state is associated with at least one SRS resource, and the first signal and the SRS resource are quasi-co-located.

[0218] As an embodiment, the first TCI state is configured with the first path loss offset.

[0219] As an embodiment, the first TCI state is associated with an SRS resource set, and the SRS resource set includes the SRS resource.

[0220] As an embodiment, the first TCI state is associated with two SRS resources, and the first signal and one of the two SRS resources are quasi-co-located.

[0221] As a sub-embodiment of this embodiment, only one of the two SRS resources is associated with the first path loss offset.

[0222] As an embodiment, the first TCI state is an uplink TCI state.

[0223] As an embodiment, the first TCI state is a TCI-UL-State.

[0224] As an embodiment, the first TCI state is associated with two TAGs (Timing Advance Groups).

[0225] As an embodiment, the first TCI state is associated with two SRS resources, and the two SRS resources are respectively associated with two TAGs.

[0226] Example 6

[0227] Embodiment 6 illustrates a schematic diagram of an embodiment according to an application scenario of the present application, as shown in the attached Figure 6 As shown in the attached Figure 6In 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.

[0228] As an embodiment, the first path loss offset value is configured, and the first path loss offset value is for the first UL link.

[0229] As a sub-embodiment of this embodiment, the first signal is a PRACH for the first UL link.

[0230] As an embodiment, the first path loss offset value is not configured; the first signal is a PRACH for the second UL link.

[0231] As an embodiment, the base station is the second node in the application.

[0232] As an embodiment, the base station and the UL-TRP constitute the second node in the present application.

[0233] As an embodiment, the base station and the UL-TRP are connected via a Backhaul link.

[0234] As an embodiment, the base station and the UL-TRP are connected via a wired connection.

[0235] As an embodiment, the transmission delay between the base station and the UL-TRP through the wire can be ignored.

[0236] Example 7

[0237] Embodiment 7 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 7 As shown in the attached Figure 7 In the embodiment, the processing device 700 in the first node includes a first receiver 701 and a first transmitter 702.

[0238] In Embodiment 7, the first receiver 701 receives a first signaling, which initiates a random access process; and the first transmitter 702 sends a first signal.

[0239] In Embodiment 7, the random access process initiated by the first signaling includes the first signal; whether the first signaling includes a domain indicating a transmission power value of the first signal and whether a first path loss offset value is configured.

[0240] As an embodiment, when the first path loss offset value is configured, the first signaling includes the domain indicating the transmit power value of the first signal; when the first path loss offset value is not configured, the first signaling does not include the domain indicating the transmit power value of the first signal.

[0241] As an embodiment, the first path loss offset value is configured, and the first signaling includes a first field, and the first field included in the first signaling indicates whether the transmission power value of the first signal depends on the first path loss offset.

[0242] As an embodiment, the first signal is associated with a downlink signal; the transmit power value of the first signal is equal to the smaller value between a first maximum power value and a first power value; when the first domain included in the first signaling indicates that the transmit power value of the first signal depends on the first path loss offset, the first power value is equal to the sum of a target power value and a target path loss value, and the target path loss value includes the path loss obtained for the downlink signal and the first path loss offset; when the first domain included in the first signaling indicates that the transmit power value of the first signal does not depend on the first path loss offset, the first power value is equal to the sum of the target power value and the target path loss value, and the target path loss value is equal to the path loss obtained for the downlink signal.

[0243] As an embodiment, the bits occupied by the first field included in the first signaling are reserved bits.

[0244] As an embodiment, the first domain included in the first signaling includes only 1 bit, and the first domain indicates whether the first path loss offset is enabled; when the first path loss offset is enabled, the sending power value of the first signal depends on the first path loss offset; when the first path loss offset is not enabled, the sending power value of the first signal does not depend on the first path loss offset.

[0245] As an embodiment, the first path loss offset is associated with a first TCI state, the first TCI state is associated with at least one SRS resource, and the first signal and the SRS resource are quasi-co-located.

[0246] As an embodiment, the first node is user equipment.

[0247] As an embodiment, the first node is a relay node device.

[0248] As an embodiment, the first receiver 701 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.

[0249] As an embodiment, the first transmitter 702 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.

[0250] Example 8

[0251] Embodiment 8 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 8 As shown in the attached Figure 8 In the embodiment, the processing device 800 in the second node includes a second transmitter 801 and a second receiver 802.

[0252] In Embodiment 8, the second transmitter 801 sends a first signaling, which initiates a random access process; and the second receiver 802 receives a first signal.

[0253] In Embodiment 8, the random access process initiated by the first signaling includes the first signal; whether the first signaling includes a domain indicating a transmission power value of the first signal and whether a first path loss offset value is configured.

[0254] As an embodiment, when the first path loss offset value is configured, the first signaling includes the domain indicating the transmit power value of the first signal; when the first path loss offset value is not configured, the first signaling does not include the domain indicating the transmit power value of the first signal.

[0255] As an embodiment, the first path loss offset value is configured, and the first signaling includes a first field, and the first field included in the first signaling indicates whether the transmission power value of the first signal depends on the first path loss offset.

[0256] As an embodiment, the first signal is associated with a downlink signal; the transmit power value of the first signal is equal to the smaller value between a first maximum power value and a first power value; when the first domain included in the first signaling indicates that the transmit power value of the first signal depends on the first path loss offset, the first power value is equal to the sum of a target power value and a target path loss value, and the target path loss value includes the path loss obtained for the downlink signal and the first path loss offset; when the first domain included in the first signaling indicates that the transmit power value of the first signal does not depend on the first path loss offset, the first power value is equal to the sum of the target power value and the target path loss value, and the target path loss value is equal to the path loss obtained for the downlink signal.

[0257] As an embodiment, the bits occupied by the first field included in the first signaling are reserved bits.

[0258] As an embodiment, the first domain included in the first signaling includes only 1 bit, and the first domain indicates whether the first path loss offset is enabled; when the first path loss offset is enabled, the sending power value of the first signal depends on the first path loss offset; when the first path loss offset is not enabled, the sending power value of the first signal does not depend on the first path loss offset.

[0259] As an embodiment, the first path loss offset is associated with a first TCI state, the first TCI state is associated with at least one SRS resource, and the first signal and the SRS resource are quasi-co-located.

[0260] As an embodiment, the second node is a base station device.

[0261] As an embodiment, the second node is user equipment.

[0262] As an embodiment, the second node is a relay node device.

[0263] As an embodiment, the second transmitter 801 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.

[0264] As an embodiment, the second receiver 802 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.

[0265] 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, Radio Frequency Identification Technology) terminals, NB-IoT (Narrow Band Internet of Things, Narrow Band Internet of Things) terminals, MTC (Machine Type Communication, Machine Type Communication) terminals, eMTC (enhanced MTC, 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 transceivers that simulate some functions of base stations or signaling testers and other wireless communication equipment.

[0266] 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 transmitting a wireless communication reference signal, characterized in that: include: A first receiver receives a first signaling, wherein the first signaling initiates a random access process; A first transmitter sends a first signal; The random access process initiated by the first signaling includes the first signal; whether the first signaling includes a field indicating whether the transmission power value of the first signal is configured with a first path loss offset value.

2. The first node according to claim 1, characterized in that; When the first path loss offset value is configured, the first signaling includes the field indicating the transmit power value of the first signal; when the first path loss offset value is not configured, the first signaling does not include the field indicating the transmit power value of the first signal.

3. The first node according to claim 2, characterized in that; The first path loss offset value is configured, the first signaling includes a first field, and the first field included in the first signaling indicates whether the transmit power value of the first signal depends on the first path loss offset.

4. The first node according to claim 3, characterized in that; The first signal is associated with a downlink signal; the transmit power value of the first signal is equal to the smaller value between a first maximum power value and a first power value; when the first field included in the first signaling indicates that the transmit power value of the first signal depends on the first path loss offset, the first power value is equal to the sum of a target power value and a target path loss value, and the target path loss value includes the path loss obtained for the downlink signal and the first path loss offset; when the first field included in the first signaling indicates that the transmit power value of the first signal does not depend on the first path loss offset, the first power value is equal to the sum of the target power value and the target path loss value, and the target path loss value is equal to the path loss obtained for the downlink signal.

5. The first node according to claim 3 or 4, characterized in that: The bits occupied by the first field included in the first signaling are reserved bits.

6. The first node according to any one of claims 3 to 5, characterized in that: The first domain included in the first signaling includes only 1 bit, and the first domain indicates whether the first path loss offset is enabled; when the first path loss offset is enabled, the transmit power value of the first signal depends on the first path loss offset; When the first path loss offset is not enabled, the transmit power value of the first signal does not depend on the first path loss offset.

7. The first node according to any one of claims 1 to 6, characterized in that: The first path loss offset is associated with a first TCI state, the first TCI state is associated with at least one SRS resource, and the first signal and the SRS resource are quasi co-located.

8. A second node used for wireless communication reference signal transmission, characterized in that: include: A second transmitter sends a first signaling, where the first signaling initiates a random access process; A second receiver receives the first signal; The random access process initiated by the first signaling includes the first signal; whether the first signaling includes a field indicating whether the transmission power value of the first signal is configured with a first path loss offset value.

9. A method in a first node used for wireless communication reference signal transmission, characterized in that: include: receiving a first signaling, wherein the first signaling initiates a random access process; Sending a first signal; The random access process initiated by the first signaling includes the first signal; whether the first signaling includes a field indicating whether the transmission power value of the first signal is configured with a first path loss offset value.

10. A method in a second node used for wireless communication reference signal transmission, characterized in that: include: Sending a first signaling, where the first signaling initiates a random access process; receiving a first signal; The random access process initiated by the first signaling includes the first signal; whether the first signaling includes a field indicating whether the transmission power value of the first signal is configured with a first path loss offset value.

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