Data transmission method and device

Abstract

An embodiment of this application provides a data transmission method and apparatus. The method includes: a relay device receives configuration information from a network device, the configuration information indicates to transmit a first signal and a second signal within a target period, the first signal being a signal for communication between the relay device and the network device, and the second signal being a signal transmitted with the assistance of the relay device. When the first signal and / or the second signal satisfy a first condition, the relay device transmits the first signal within the target period, and when the first signal and / or the second signal do not satisfy the first condition, the relay device transmits the second signal within the target period. According to this application, the relay device can determine the signal to be transmitted within the target period to avoid degradation of relay performance caused by the contention between the first signal and the second signal.

Description

[Technical Field]

[0001] [ Technical Field] This application relates to the field of communications, and more particularly to a data transmission method and apparatus. [Background technology]

[0002] In the prior art, direct communication between a network device and a terminal device can be affected by many factors. For example, when the network device and the terminal device are far away from each other, the network device may fail to directly communicate with the terminal device. One way to solve this problem is to use a relay device to assist communication between the network device and the terminal device. In this case, there are mainly two types of signals related to the relay device: non-transfer signals and forward signals.

[0003] A non-forwarding signal is a signal for communication between a relay device and a network device, and is used for control information exchange, time synchronization, etc. A forwarding signal is a signal transmitted with the assistance of a relay device when a network device communicates with a terminal device. For example, a relay device may receive a signal from a network device and transmit a signal to the terminal device. However, when a network device is configured to simultaneously transmit a non-forwarding signal and a forwarding signal within a target period, the relay device may fail to determine which signal should be transmitted and therefore cannot process the two types of signals. Summary of the Invention

[0004] This application provides a data transmission method and apparatus. When a network device is configured to simultaneously transmit a non-transfer signal and a transfer signal within a target period, an intermediate device can determine which signal should be transmitted within the target period and therefore can process the two types of signals.

[0005] According to a first aspect, a data transmission method is provided. The method may be performed by a relay device, or may be performed by a component (e.g., a chip or a circuit) of the relay device. This is not limited. For ease of explanation, the following uses an example in which the method is performed by a relay device for explanation.

[0006] The method may include: a relay device receiving configuration information from a network device, the configuration information indicating transmission of a first signal and a second signal within a target time period, the first signal being a signal for communication between the relay device and the network device, and the second signal being a signal transmitted with the assistance of the relay device; when the first signal and / or the second signal satisfy a first condition, the relay device transmitting the first signal within the target time period; and when the first signal and / or the second signal do not satisfy the first condition, the relay device transmitting the second signal within the target time period.

[0007] Based on the above technical solution, when a network device is configured to transmit a first signal and a second signal within a target period, the relay device can determine which signal to transmit by determining whether the first signal and / or the second signal satisfy a first condition. If the first signal and / or the second signal satisfy the first condition, the relay device transmits the first signal within the target period to prioritize signal interaction between the relay device and the network device, thereby enabling the network device to control or assist in controlling the relay device and enabling the relay device to prioritize obtaining a correct configuration. If the first signal and / or the second signal do not satisfy the first condition, the relay device transmits the second signal within the target period to prioritize assist signal transmission between the network device and the terminal device, thereby ensuring communication continuity between the network device and the terminal device. This method allows the relay device to correctly process the first signal and the second signal and avoid degradation of relay performance caused by contention between the first signal and the second signal.

[0008] In some implementations of the first aspect, the first condition is that the priority of the first signal is equal to or greater than the priority of the second signal. The priorities of the first and second signals are classified based on signal types, and there is at least one of the following signal types: public signals, data signals, and control signals.

[0009] Based on the above technical solution, the relay device may determine the priority of the first signal and the second signal based on the signal type (e.g., a public signal, a data signal, or a control signal), and further determine the signal to be transmitted within the target period, so as to avoid the degradation of relay performance caused by the conflict between the first signal and the second signal.

[0010] Referring to the first aspect, in some implementations of the first aspect, the first signal and / or the second signal satisfying the first condition includes: the first signal being a public signal; the first signal being a non-public signal and the second signal being a non-public signal; the first signal being a control signal and the second signal being a semi-persistently scheduled signal; or the first signal being a semi-persistently scheduled signal and the second signal being a semi-persistently scheduled signal.

[0011] Based on the above technical solution, when the relay device determines that the first signal and / or the second signal meets the first condition, the relay device transmits the first signal within a target period, so as to preferentially ensure signal interaction between the relay device and the network device, so that the network device can control or assist the relay device in controlling the relay device, and enable the relay device to preferentially obtain a correct configuration.

[0012] Referring to the first aspect, in some implementations of the first aspect, the first signal and / or the second signal not satisfying the first condition includes the second signal being a public signal, the second signal being a control signal and the first signal being a non-public signal, the second signal being a control signal and the first signal being a semi-persistently scheduled signal, or the second signal being a semi-persistently scheduled signal and the first signal being a semi-persistently scheduled signal.

[0013] Based on the above technical solution, when the relay device determines that the first signal and / or the second signal does not satisfy the first condition, the relay device transmits a second signal within a target period, so that the relay device preferentially supports signal transmission between the network device and the terminal device, and ensures communication continuity between the network device and the terminal device.

[0014] With reference to the first aspect, in some implementations of the first aspect, the first signal and / or the second signal satisfying the first condition includes the first signal having at least one of the following functions: beam management, power control, connection and disconnection control, timing information, configuration information of the second signal, feedback measurement report, scheduling request, and time synchronization.

[0015] Based on the above technical solution, when the relay device determines that the first signal and / or the second signal meets the first condition, the relay device transmits the first signal within a target period, so as to preferentially ensure signal interaction between the relay device and the network device, so that the network device can control or assist the relay device in controlling the relay device, and enable the relay device to preferentially obtain a correct function configuration.

[0016] Referring to the first aspect, in some implementations of the first aspect, before determining whether the first signal and / or the second signal satisfy the first condition, the method further includes: when the first signal and the second signal satisfy the second condition, the relay device transmits the first signal and the second signal within the target time period.

[0017] Based on the above technical solution, when the first signal and the second signal satisfy a second condition, the relay device may transmit the first signal and the second signal within a target period, thereby improving the signal processing efficiency of the relay device.

[0018] Referring to the first aspect, in some implementations of the first aspect, the second condition is that the difference between the power of the first signal and the power of the second signal is less than or equal to a first threshold, and / or the second condition is that the difference between the modulation order of the first signal and the modulation order of the second signal is less than or equal to a second threshold.

[0019] According to a second aspect, a data transmission apparatus is provided. The apparatus may include: a transceiver unit configured to receive configuration information from a network device, the configuration information indicating transmission of a first signal and a second signal within a time period of interest, the first signal being a signal for communication between the apparatus and the network device, and the second signal being a signal transmitted with the assistance of the apparatus; and a processing unit configured to determine that the first signal and / or the second signal satisfy a first condition. The transceiver unit is further configured to transmit the first signal within the time period of interest, the processing unit is further configured to determine that the first signal and / or the second signal do not satisfy the first condition, and the transceiver unit is further configured to transmit the second signal within the time period of interest.

[0020] Based on the above technical solution, when a network device is configured to transmit a first signal and a second signal within a target period, the relay device can determine which signal to transmit by determining whether the first signal and / or the second signal satisfy a first condition. If the first signal and / or the second signal satisfy the first condition, the relay device transmits the first signal within the target period, thereby ensuring signal interaction between the relay device and the network device, allowing the network device to control or assist in controlling the relay device, and enabling the relay device to preferentially obtain a correct configuration. If the first signal and / or the second signal do not satisfy the first condition, the relay device transmits the second signal within the target period, thereby preferentially assisting signal transmission between the network device and the terminal device to ensure communication continuity between the network device and the terminal device. This method allows the relay device to correctly process the first signal and the second signal and avoid degradation of relay performance caused by contention between the first signal and the second signal.

[0021] In some implementations of the second aspect, the first condition is that the priority of the first signal is equal to or greater than the priority of the second signal. The priorities of the first and second signals are classified based on signal types, and there is at least one of the following signal types: public signals, data signals, and control signals.

[0022] Referring to the second aspect, in some implementations of the second aspect, the first signal and / or the second signal satisfying the first condition includes the first signal being a public signal, the first signal being a non-public signal and the second signal being a non-public signal, the first signal being a control signal and the second signal being a semi-persistently scheduled signal, or the first signal being a semi-persistently scheduled signal and the second signal being a semi-persistently scheduled signal.

[0023] Referring to the second aspect, in some implementations of the second aspect, the first signal and / or the second signal not satisfying the first condition includes the second signal being a public signal, the second signal being a control signal and the first signal being a non-public signal, the second signal being a control signal and the first signal being a semi-persistently scheduled signal, or the second signal being a semi-persistently scheduled signal and the first signal being a semi-persistently scheduled signal.

[0024] With reference to the second aspect, in some implementations of the second aspect, the first signal and / or the second signal satisfying the first condition includes the first signal having at least one of the following functions: beam management, power control, connection and disconnection control, timing information, configuration information of the second signal, feedback measurement report, scheduling request, and time synchronization.

[0025] With reference to the second aspect, in some implementations of the second aspect, before determining whether the first signal and / or the second signal satisfy the first condition, the processing unit is configured to determine that the first signal and the second signal satisfy a second condition, and the transceiver unit is configured to transmit the first signal and the second signal within the target period.

[0026] Referring to the second aspect, in some implementations of the second aspect, the second condition is that the difference between the power of the first signal and the power of the second signal is less than or equal to a first threshold, and / or the second condition is that the difference between the modulation order of the first signal and the modulation order of the second signal is less than or equal to a second threshold.

[0027] According to a third aspect, there is provided a communication device configured to perform the method according to the first aspect, and more particularly, the device may include units and / or modules, such as a processing unit and / or a communication unit, configured to perform the method according to any one of the possible implementations of the first aspect.

[0028] In an implementation, the apparatus is a relay device. When the apparatus is a relay device, the communication unit may be a transceiver or an input / output interface, and the processing unit may be at least one processor. Optionally, the transceiver may be a transceiver circuit. Optionally, the input / output interface may be an input / output circuit.

[0029] In another implementation, the apparatus is a chip, chip system, or circuit used in a relay device. When the apparatus is a chip, chip system, or circuit used in a relay device, the communication unit may be an input / output interface, interface circuit, output circuit, input circuit, pin, associated circuit, etc. on the chip, chip system, or circuit, and the processing unit may be at least one processor, processing circuit, logic circuit, etc.

[0030] According to a fourth aspect, there is provided a communications device, the device including at least one processor configured to execute a computer program or instructions stored in a storage to perform the method of any one of the possible implementations of the first aspect. Optionally, the device further includes a storage configured to store the computer program or instructions. Optionally, the device further includes a communications interface, through which the processor reads the computer program or instructions stored in the storage.

[0031] In the implementation, the device is a relay device.

[0032] In another implementation, the apparatus is a chip, chip system or circuit used in an intermediary device.

[0033] According to a fifth aspect, the application provides a processor configured to perform the method in the above aspect.

[0034] Operations such as transmitting and acquiring / receiving related to a processor may be understood as operations such as output and receiving or input of a processor, or operations such as transmitting and receiving performed by a radio frequency circuit and an antenna, unless otherwise specified, or provided that the operations do not contradict the actual function or internal logic of the operations in the relevant description, which is not limited in this application.

[0035] According to a sixth aspect, there is provided a computer-readable storage medium storing program code to be executed by a device, the program code including a method in a possible implementation manner of the first aspect.

[0036] According to a seventh aspect, there is provided a computer program product comprising instructions which, when executed on a computer, enable the computer to carry out a method in a possible implementation of the first aspect.

[0037] According to an eighth aspect, the present application further provides a system, the system including a relay device, the relay device being configured to perform the steps performed by the relay device in the first aspect.

[0038] In some possible implementations, the system may further include other devices that interact with the relay device in the solution provided in this embodiment of this application. [Brief explanation of the drawings]

[0039] [Figure 1] 1 shows a diagram of a communication system 100 applicable to embodiments of the present application. [Figure 2] 2 shows a schematic flowchart of a data transmission method 200 applicable to an embodiment of the present application. [Figure 3] 1 is a diagram of a data transmission method 300 according to an embodiment of the present application. [Figure 4] 1 shows a diagram of a data transmission scheme according to an embodiment of the present application; [Figure 5] 1 shows a diagram of another data transmission scheme according to an embodiment of the present application; [Figure 6] 1 shows a diagram of another data transmission scheme according to an embodiment of the present application; [Figure 7] 1 shows a diagram of another data transmission scheme according to an embodiment of the present application; [Figure 8] 1 shows a diagram of another data transmission scheme according to an embodiment of the present application; [Figure 9] 1 shows a diagram of another data transmission scheme according to an embodiment of the present application; [Figure 10] 1 shows a diagram of another data transmission scheme according to an embodiment of the present application; [Figure 11] 1 shows a diagram of another data transmission scheme according to an embodiment of the present application; [Figure 12] 12 shows a block diagram of a communication device 1200 according to an embodiment of the present application. [Figure 13] 13 shows a block diagram of another communication device 1300 according to an embodiment of the present application. [Figure 14] 14 shows a diagram of a chip system 1400 according to an embodiment of the present application. DETAILED DESCRIPTION OF THE INVENTION

[0040] Below, the technical solutions of the embodiments in this application are described with reference to the accompanying drawings.

[0041] The technical solutions in the embodiments of this application may be applied to various communication systems, such as a 5th generation (5G) or new radio (NR) system, a long term evolution (LTE) system, an LTE frequency division duplex (FDD) system, an LTE time division duplex (TDD) system, etc. The technical solutions provided in this application may also be applied to future communication systems, such as a 6th generation mobile communication system. The technical solutions provided in this application may also be applied to device-to-device (D2D) communication, vehicle-to-everything (V2X) communication, machine-to-machine (M2M) communication, machine type communication (MTC), internet of things (IoT) communication system, or other communication systems.

[0042] The terminal device in the embodiment of this application may be a device that provides voice / data to a user, such as a handheld device or an in-vehicle device with wireless connection capability. Currently, some examples of terminals are a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a mobile internet device (MID), a wearable device, a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a wireless terminal in self driving, a wireless terminal in remote surgery, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, a mobile phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device or computing device with wireless communication capabilities, another processing device or a wearable device connected to a wireless modem, a terminal device in a 5G network, or a future evolved public land mobile network. The mobile terminal may be a terminal device in a PLMN (Protocol Label Chain Network), which is not limited in the embodiments of this application.

[0043] By way of example and not limitation, in the embodiments of this application, the terminal device may alternatively be a wearable device. A wearable device may also be referred to as a wearable intelligent device, which is a general term for wearable devices, such as glasses, gloves, watches, clothes, and shoes, that are intelligently designed and developed for everyday wear by using wearable technology. A wearable device is a portable device that can be worn directly on the body or integrated into a user's clothing or accessories. A wearable device is not only a hardware device, but also realizes powerful functions through software support, data exchange, and cloud interaction. In a broad sense, intelligent wearable devices include full-featured large devices, such as smart watches or smart glasses, that can achieve full or partial functionality without relying on a smartphone, and devices that are dedicated to only one type of application and need to be used together with other devices, such as smartphones, such as various smart bands or smart jewelry used to monitor physical symptoms.

[0044] Furthermore, the terminal device in the embodiments of this application may alternatively be a terminal device in an IoT system. IoT is an important part of the future development of information technology. The main technical feature of IoT is to connect things to a network by using communication technology to realize an intelligent network for interconnection between people and machines or between things.

[0045] In this embodiment of the application, an apparatus configured to perform the functions of a terminal device may be the terminal device itself, or may be an apparatus capable of supporting the terminal device in performing the functions, such as a chip system or a chip. The apparatus may be installed in the terminal device. In this embodiment of the application, the chip system may include a chip, or may include a chip and other discrete components.

[0046] The relay device in the embodiment of this application may be a terminal device. For a specific example, please refer to the above description of the terminal device. The details will not be described again here.

[0047] The network device in the embodiments of this application may be a device configured to communicate with a terminal device. The network device may be a base transceiver station (BTS) in a global system for mobile communications (GSM) or code division multiple access (CDMA), a Node B (NB) in a wideband code division multiple access (WCDMA) system, an evolved Node B (eNB or eNodeB) in an LTE system, or a radio controller in a cloud radio access network (CRAN) scenario. Alternatively, the network device may be a relay station, an access point, an in-vehicle device, a wearable device, a network device in a 5G network or a network device in a future evolved PLMN network, or one or a group of antenna panels (including multiple antenna panels) of a base station in a 5G system. Alternatively, the network device may be a network node constituting a gNB or a transmission point, such as a baseband unit (BBU) or a distributed unit (DU), which is not limited to the embodiments of this application.

[0048] In some deployments, a gNB may include a central unit (CU) and a DU. The gNB may further include an active antenna unit (AAU). The CU performs some of the gNB's functions, and the DU performs some of the gNB's functions. For example, the CU is responsible for processing non-real-time protocols and services and performs functions of the radio resource control (RRC) layer and packet data convergence protocol (PDCP) layer. The DU is responsible for processing physical layer protocols and real-time services and performs functions of the radio link control (RLC) layer, media access control (MAC) layer, and physical (PHY) layer. The AAU performs some of the physical layer processing functions, radio frequency processing, and functions related to active antennas. Information at the RRC layer is ultimately converted to or from PHY layer information. Therefore, in this architecture, higher layer signaling, such as RRC layer signaling, may also be considered to be transmitted by the DU or by the DU and AAU. It may be understood that the network device may be a device including one or more of a CU node, a DU node, and an AAU node. Furthermore, the CU may be classified as a network device in an access network (radio access network, RAN), or the CU may be classified as a network device in a core network (CN), which is not limited in this application.

[0049] In an embodiment of this application, a terminal device or a network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and memory (also referred to as main memory). The operating system may be any one or more types of computer operating systems that implement service processing through processes, such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a Windows operating system. The application layer includes applications such as a browser, an address book, word processing software, and instant messaging software. Furthermore, provided that a program recording the code of the method provided in the embodiment of this application can be executed to perform communication according to the method provided in the embodiment of this application, the specific structure of the execution entity of the method provided in the embodiment of this application is not particularly limited in the embodiment of this application. For example, the execution entity of the method provided in the embodiment of this application may be a terminal device or a network device, or a functional module that can call and execute a program in the terminal device or the network device.

[0050] The relay device in the embodiment of this application may be a terminal device. For specific examples, please refer to the above list of terminal devices. The details will not be described again here.

[0051] Direct communication between a network device and a terminal device can be affected by many factors. For example, when the network device and the terminal device are far away from each other, the network device may fail to directly communicate with the terminal device. One way to solve this problem is to use a relay device to assist the communication between the network device and the terminal device. In this case, there are mainly two types of signals related to the relay device: non-transfer signals and forward signals.

[0052] A non-forwarding signal is a signal for communication between an intermediate device and a network device, in other words, a signal whose source address or destination address is an intermediate device. For example, an intermediate device generates a signal and transmits the signal to a network device. In this case, the signal may be referred to as a non-forwarding signal. In another example, a network device generates a signal and transmits the signal to an intermediate device for use. In this case, the signal may be referred to as a non-forwarding signal.

[0053] A forwarded signal is a signal transmitted with the assistance of an intermediate device when a network device communicates with a terminal device, in other words, a signal whose source address or destination address is not an intermediate device. For example, a network device generates a signal and transmits the signal to an intermediate device, and the intermediate device forwards the signal to the terminal device. In this case, the signal may be called a forwarded signal. In another example, a terminal device generates a signal and transmits the signal to an intermediate device, and the intermediate device forwards the signal to a network device. In this case, the signal may be called a forwarded signal.

[0054] In the following embodiments, it is assumed that the non-forwarding signal is a first signal, and the first signal includes at least one of the following: a non-forwarding signal received by the relay device from a network device (represented as signal #1) and a non-forwarding signal transmitted by the relay device to a network device (represented as signal #2); and the forwarding signal is a second signal, and the second signal includes a signal forwarded by the relay device to a terminal device (or a next-hop relay device) (represented as signal #3) and a signal forwarded by the relay device to a network device (or a previous-hop relay device) (represented as signal #4).

[0055] 1 shows a diagram of a communication system 100 applicable to an embodiment of this application. As shown in FIG. 1, the communication system 100 includes a network device 110, a relay device 120, and a terminal device 130. There may be one or more terminal devices 130, and there may be one or more relay devices 120.

[0056] When the network device 110 and the terminal device 130 are far away from each other, the network device and the terminal device cannot communicate directly with each other. In this case, the relay device 120 may be used to provide relay services to the terminal device 130 and the network device 110 to facilitate communication between the terminal device 130 and the network device 110. The relay device 120 may have two antenna panels, one used to communicate with the network device and the other used to communicate with the terminal device. For example, when the network device 110 transmits signal #3 to the terminal device 130, the relay device 120 may receive signal #3 by using the antenna panel communicating with the network device 110, amplify signal #3, and then transmit signal #3 to the terminal device 130 by using the antenna panel communicating with the terminal device 130. In another example, when terminal device 130 transmits signal #4 to network device 110, relay device 120 may receive signal #4 by using an antenna panel in communication with terminal device 130, amplify signal #4, and then transmit signal #4 to network device 110 by using an antenna panel in communication with network device 110.

[0057] To better utilize the relay device 120 to provide relay services to the terminal device 130 and the network device 110, the relay device 120 is typically configured by a controller, which is configured for signal interaction between the relay device 120 and the network device 110. For example, the network device 110 may send signal #1 to the controller within the relay device 120. Signal #1 may relate to any one or more of the following: beam management, power control, connection and disconnection control, timing information, or configuration information for a second signal. In response, the controller within the relay device 120 may receive signal #1. In another example, the controller within the relay device 120 may send signal #2 to the network device 110, and in response, the network device 110 may receive signal #2.

[0058] It should be noted that the communication system 100 shown in FIG. 1 is merely intended to more clearly explain the technical solution of this application and does not constitute any limitation to this application. Those skilled in the art may recognize that with the evolution of network architecture and the emergence of new service scenarios, the technical solution provided in this application may also be applicable to similar technical problems. For example, the communication system 100 shown in FIG. 1 may also be applicable to a multi-hop relay communication scenario. In this scenario, the network device 110 may be a previous-level relay device, and the terminal device 130 may be a next-level relay device.

[0059] 2 shows a schematic flowchart of a data transmission method 200 applicable to the embodiments of this application. The method 200 may include the following steps:

[0060] 201: A network device transmits a synchronization signal block to a relay device.

[0061] For example, the network device periodically transmits a synchronization signal to the relay device. Correspondingly, the relay device may receive a synchronization signal block from the network device. The synchronization signal may be a synchronization signal / physical broadcast channel block (SSB) or may also be referred to as a synchronization signal block. The physical broadcast channel (PBCH) carries a master information block (MIB). The MIB may indicate the search space of system information block 1 (SIB 1), specifically, the time and frequency locations where the physical downlink control channel (PDCCH) corresponding to SIB 1 may be transmitted.

[0062] 202: The network device sends system information to the relay device.

[0063] For example, a network device may transmit broadcast system information to a relay device, and a signal carrying the system information may be called a system information block (SIB). For example, the SIB may include SIB 1, which may be used to carry information such as a random access response signal such as message 2 (Msg 2) and a downlink signal such as message 4 (Msg 4). Correspondingly, the relay device may receive system information from the network device.

[0064] 203: The network device sends paging information to the relay device.

[0065] For example, a network device periodically transmits paging information within a paging time window. Correspondingly, a terminal device or a relay device in an idle state may periodically monitor the paging information. In other words, a terminal device or a relay device in an idle state may periodically search for a PDCCH corresponding to the paging information. The PDCCH corresponding to the paging information may be scrambled by using a paging radio network temporary identifier (P-RNTI).

[0066] 204: The intermediate device sends Msg 1 to the network device.

[0067] For example, the relay device may determine a random access resource associated with the SSB based on configuration information of a physical random access channel (PRACH) and the SSB received from the network device. The random access resource may include a time resource, a frequency resource, and a code rate resource. The relay device may transmit a random access preamble signal, such as message 1 (Msg 1), to the network device by using the random access resource. In response, the network device may receive the random access preamble signal (e.g., Msg 1).

[0068] 205: The network device sends Msg 2 to the relay device.

[0069] For example, after receiving a random access preamble signal (e.g., Msg 1) from the relay device, the network device may estimate the timing advance of the relay device and send a random access response signal (e.g., Msg 2) to the relay device. The random access response signal (e.g., Msg 2) includes configuration information such as the time-frequency resource location and modulation and coding scheme at which the relay device sends an uplink signal, e.g., message 3 (Msg 3). Correspondingly, the relay device may receive the random access response signal (e.g., Msg 2).

[0070] 206: The intermediate device sends Msg 3 to the network device.

[0071] For example, after the relay device receives a random access response signal (e.g., Msg 2) from the network device, the relay device transmits an uplink signal (e.g., Msg 3) to the network device at a time-frequency resource location based on the time-frequency resource location at which the relay device transmits the uplink signal (e.g., Msg 3) and included in the random access response signal (e.g., Msg 2). Correspondingly, the network device may receive the uplink signal (e.g., Msg 3).

[0072] 207: The network device sends Msg 4 to the relay device.

[0073] For example, after receiving an uplink signal (e.g., Msg 3) from the relay device, the network device sends a downlink signal (e.g., Msg 4) to the relay device. The downlink signal (e.g., Msg 4) indicates that the relay device has successfully accessed the network device. Correspondingly, the relay device may receive the downlink signal (e.g., Msg 4), so that the relay device can communicate with the network device based on the indication information in the downlink signal (e.g., Msg 4).

[0074] 208: The intermediate device sends the capability information to the network device.

[0075] When the relay device simultaneously transmits the first signal and the second signal, the capability information may correspond to one or more of the following: (1) the relay device receives signal #1 and does not transmit signal #3 or signal #4; (2) the relay device transmits signal #2 and does not transmit signal #3 or signal #4; (3) the relay device transmits signal #3 and does not receive signal #1 or does not transmit signal #2; (4) the relay device transmits signal #4 and does not receive signal #1 or does not transmit signal #2; (5) the relay device receives signal #1 and simultaneously transmits signal #3; (6) the relay device receives signal #1 and simultaneously transmits signal #4; (7) the relay device simultaneously transmits signal #2 and signal #3; (8) the relay device simultaneously transmits signal #2 and signal #4.

[0076] 209: The network device transmits a signal #1 to the relay device.

[0077] Signal #1 may relate to any one or more of the following: beam management, power control, connection and disconnection control, timing information, or configuration information of the second signal, thereby enabling the network device to control or assist in controlling the relay device.

[0078] Signal #1 may be any one of the following: a public signal, a PDCCH, a physical downlink shared channel (PDSCH), a channel state information-reference signal (CSI-RS), a tracking reference signal (TRS), or other reference signals. The public signal may be any one of the following: an SSB, system information, paging information, a random access response signal (e.g., Msg 2), a downlink signal (e.g., Msg 4), or other public signals.

[0079] 210: The intermediate device transmits signal #2 to the network device.

[0080] Signal #2 may relate to any one or more of the following: feedback measurement reports, scheduling requests or time synchronization, thereby enabling the network device to control or assist in controlling the relay device.

[0081] Signal #2 may be any one of the following: a public signal, a sounding reference signal (SRS), a physical uplink control channel (PUCCH), a physical uplink shared channel (PUSCH), or other reference signal. The public signal may be any one of a PRACH, a random access preamble signal (e.g., Msg 1), an uplink signal (e.g., Msg 3), or other public signal.

[0082] 211: The network device transmits a signal #3 to the relay device.

[0083] In response, the relay device receives signal #3 and transmits signal #3 to the terminal device (or next-hop relay device).

[0084] Signal #3 may be any one of the following: a public signal, a PDCCH, a PDSCH, a CSI-RS, a TRS, or other reference signal. The public signal may be any one of the following: an SSB, system information, paging information, a random access response signal (e.g., Msg 2), a downlink signal (e.g., Msg 4), or other public signal.

[0085] 212: The intermediate device transmits a signal #4 to the network device.

[0086] In response, the relay device receives signal #4 from the terminal device and transmits signal #4 to the network device (or previous-hop relay device).

[0087] Signal #4 may be any one of the following: a public signal, SRS, PUCCH, PUSCH, or other reference signal. The public signal may be any one of the following: a PRACH, a random access preamble signal (e.g., Msg 1), an uplink signal (e.g., Msg 3), or other public signal.

[0088] It should be understood that the order in which steps 201 to 212 are performed is not limited in this embodiment of the present application, and one or more of steps 201 to 212 may be performed, which is not limited in this embodiment of the present application.

[0089] According to method 200, the first signal (e.g., signal #1 or signal #2) may be a signal for communication between a relay device and a network device, and the second signal (e.g., signal #3 or signal #4) may be a signal transmitted with the assistance of the relay device when the network device communicates with a terminal device. When the network device is configured to simultaneously generate the first signal and the second signal, for example, when steps 209 and 211 are simultaneously performed, specifically, when the relay device receives signal #1 and simultaneously transmits signal #3, or when steps 210 and 212 are simultaneously performed, specifically, when the relay device simultaneously transmits signal #2 and simultaneously transmits signal #4, the relay device may fail to determine which signal to transmit and therefore may not be able to process the two signals correctly, causing degradation of relay performance and affecting the normal operation of the network.

[0090] In view of the above technical problems, this application provides a data transmission method. According to this method, when a network device in this application is configured to simultaneously generate a first signal and a second signal, the relay device can correctly process the first signal and the second signal. In other words, when the first signal and the second signal simultaneously occur, the relay device may choose to transmit the first signal (for example, the relay device receives signal #1 and, in another example, transmits signal #2), or may choose to transmit the second signal (for example, the relay device transmits signal #3 and, in another example, transmits signal #4), or may choose to simultaneously transmit the first signal and the second signal (for example, the relay device receives signal #1 and transmits signal #3).

[0091] The data transmission method provided in the embodiment of this application is described below.

[0092] In the following embodiments, the function of a first signal (e.g., signal #1 or signal #2) and the function of a second signal (e.g., signal #3 or signal #4) are referred to multiple times. It should be understood that the function of a signal is a function corresponding to the information carried in the signal. For example, the function of signal #1 is a function corresponding to the information carried in signal #1. In another example, the function of signal #2 is a function corresponding to the information carried in signal #2.

[0093] 3 shows a diagram of a data transmission method 300 according to an embodiment of this application. As shown in FIG. 3, the method 300 may include the following steps:

[0094] 310: The intermediate device receives configuration information from the network device, where the configuration information indicates transmitting a first signal and a second signal within a target time period.

[0095] The first signal is a signal for communication between the relay device and the network device (ie, a non-transfer signal), and the second signal is a signal transmitted with the assistance of the relay device (ie, a forward signal).

[0096] The configuration information may be carried in any one of the following: PBCH, system information (e.g., SIB 1), media access control-control element (MAC-CE), downlink control information (DCI), or radio resource control (RRC).

[0097] The target period may be a specific point in time or a time interval. The time unit of the target period is not limited. For example, the target period may be one or more subframes. In another example, the target period may be one or more slots. In another example, the target period may be one or more orthogonal frequency division multiplexing (OFDM) symbols. This is not limited in this embodiment of the application.

[0098] It should be understood that when the first signal and the second signal are transmitted within a time period of interest, the first signal and the second signal occur simultaneously. For example, the first signal and the second signal occur simultaneously at a particular point in time. In another example, the first signal and the second signal occur simultaneously within a time interval.

[0099] Assume that the first signal includes signal #1 and signal #2, and the second signal includes signal #3 and signal #4. Instructing the relay device to transmit the first signal and the second signal within the target time period by the network device may include receiving signal #1 within the target time period and instructing the relay device to transmit signal #3, transmitting signal #2 within the target time period and instructing the relay device to transmit signal #4, receiving signal #1 within the target time period and instructing the relay device to transmit signal #4, or instructing the network device to transmit signal #2 and signal #3 within the target time period.

[0100] When the relay device is configured to transmit the first signal and the second signal within the target period, the relay device may determine the signal to be transmitted according to steps 320 and 330, and then process the first signal and the second signal correctly.

[0101] 320: When the first signal and / or the second signal satisfy a first condition, the relay device transmits the first signal within a target time period.

[0102] 330: When the first signal and / or the second signal does not satisfy the first condition, the relay device transmits the second signal within the target time period.

[0103] The first signal and / or the second signal satisfy the first condition, specifically, the priority of the first signal is equal to or greater than the priority of the second signal. The first signal and / or the second signal do not satisfy the first condition, specifically, the priority of the second signal is higher than the priority of the first signal.

[0104] Optionally, the priorities of the first and second signals are classified based on signal type, where there is at least one of the following signal types: public signal, data signal and control signal.

[0105] An example in which the first signal includes signal #1 and signal #2, and the second signal includes signal #3 and signal #4 will be used below to describe with reference to some cases: signal #1 represents a non-forwarding signal transmitted by a network device to a relay device, signal #2 represents a non-forwarding signal transmitted by a relay device to a network device, signal #3 represents a signal forwarded by a relay device to a terminal device (in other words, the network device transmits a signal to the relay device, and the relay device forwards the signal to the terminal device), and signal #4 represents a signal forwarded by a relay device to a network device (in other words, the terminal device transmits a signal to the relay device, and the relay device forwards the signal to the network device).

[0106] Case #A: When signal #1 and / or signal #3 satisfy the first condition, the relay device receives signal #1 within the target period.

[0107] The first condition may be that the priority of signal #1 is equal to or greater than the priority of signal #3.

[0108] For example, the intermediate device does not transmit signal #3 within the time period of interest.

[0109] Optionally, the priorities of signal #1 and signal #3 are classified based on signal type, where there is at least one of the following signal types: public signal, data signal and control signal.

[0110] The public signal may be any one of the following: SSB, system information, paging information, a random access response signal (e.g., Msg 2), a downlink signal (e.g., Msg 4), or other public signals. The data signal may be a signal for transmitting data information. For example, the data signal may be a PDSCH or other data signal. The control signal may be a signal for transmitting control information. For example, the control signal may be any one of the following: PDCCH, CSI-RS, TRS, or other control signal.

[0111] In a possible scheme, when signal #1 is a public signal, the priority of signal #1 is equal to or greater than the priority of signal #3, and the relay device receives signal #1 within the target period.

[0112] For example, signal #1 is a public signal and signal #3 is a public signal. For example, signal #1 may be any one of the following: SSB, system information, paging information, a random access response signal (e.g., Msg 2), a downlink signal (e.g., Msg 4), or other public signals. Signal #3 may be any one of the following: SSB, system information, paging information, a random access response signal (e.g., Msg 2), a downlink signal (e.g., Msg 4), or other public signals.

[0113] For example, signal #1 is a public signal and signal #3 is a data signal. For example, signal #1 may be any one of the following: SSB, system information, paging information, random access response signal (e.g., Msg 2), downlink signal (e.g., Msg 4), or other public signal. Signal #3 may be PDSCH or other data signal.

[0114] For example, signal #1 is a public signal and signal #3 is a control signal. For example, signal #1 may be any one of the following: SSB, system information, paging information, a random access response signal (e.g., Msg 2), a downlink signal (e.g., Msg 4), or other public signals. Signal #3 may be any one of the following: PDCCH, CSI-RS, TRS, or other control signals.

[0115] In another possible scheme, when signal #1 is a non-public signal and signal #3 is a non-public signal, the priority of signal #1 is equal to or greater than the priority of signal #3, and the relay device receives signal #1 within the target period.

[0116] For example, signal #1 is a control signal and signal #3 is a control signal. For example, signal #1 may be any one of the following: PDCCH, CSI-RS, TRS, or other control signal. Signal #3 may be any one of the following: PDCCH, CSI-RS, TRS, or other control signal.

[0117] For example, signal #1 is a control signal and signal #3 is a data signal. For example, signal #1 may be any one of the following: PDCCH, CSI-RS, TRS, or other control signal. Signal #3 may be PDSCH or other data signal.

[0118] For example, signal #1 is a data signal and signal #3 is a control signal. For example, signal #1 may be a PDSCH or other data signal. Signal #3 may be any one of the following: PDCCH, CSI-RS, TRS, or other control signal.

[0119] For example, signal #1 is a data signal and signal #3 is a data signal. For example, signal #1 may be a PDSCH or other data signal. Signal #3 may be a PDSCH or other data signal.

[0120] In another possible scheme, when signal #1 is a control signal and signal #3 is a semi-persistently scheduled signal, the priority of signal #1 is equal to or greater than the priority of signal #3, and the relay device receives signal #1 within the target period.

[0121] For example, signal #1 may be any one of the following: PDCCH, CSI-RS, TRS, or other control signal, and signal #3 may be a semi-persistently scheduled PDCCH, a semi-persistently scheduled CSI-RS, a semi-persistently scheduled TRS, or other semi-persistently scheduled signal.

[0122] In another possible scheme, when signal #1 is a semi-persistently scheduled signal and signal #3 is a semi-persistently scheduled signal, the priority of signal #1 is equal to or greater than the priority of signal #3, and the relay device receives signal #1 within the target period.

[0123] For example, signal #1 may be a semi-persistently scheduled PDCCH, a semi-persistently scheduled CSI-RS, a semi-persistently scheduled TRS, or other semi-persistently scheduled signal, and signal #3 may be a semi-persistently scheduled PDCCH, a semi-persistently scheduled CSI-RS, a semi-persistently scheduled TRS, or other semi-persistently scheduled signal.

[0124] Optionally, the priorities of Signal #1 and Signal #3 are classified based on the function of the signals: When the function of Signal #1 satisfies a first condition, the relay device receives Signal #1 within the target period.

[0125] The function of signal #1 meeting the first condition may include the following: The function of signal #1 may be at least one of the following: beam management, power control, connection and disconnection control, timing information, or configuration information of the second signal.

[0126] According to Case #A, when the network device is configured to transmit Signal #1 and Signal #3 within the target period, the relay device may determine whether to receive Signal #1 within the target period by determining whether Signal #1 and / or Signal #3 satisfy a first condition (the priority of Signal #1 is equal to or greater than the priority of Signal #3). When the relay device determines that Signal #1 and / or Signal #3 satisfy the first condition, the relay device receives Signal #1 within the target period, thereby ensuring preferential signal interaction between the relay device and the network device, allowing the network device to control or assist in controlling the relay device, and enabling the relay device to preferentially obtain a correct configuration.

[0127] Case #B: When signal #2 and / or signal #4 satisfy the first condition, the relay device transmits signal #2 within the target period.

[0128] The first condition may be that the priority of signal #2 is equal to or greater than the priority of signal #4.

[0129] For example, the intermediate device does not transmit signal #4 within the time period of interest.

[0130] Optionally, the priorities of signals #2 and #4 are classified based on signal type, where there is at least one of the following signal types: public signal, data signal and control signal.

[0131] The public signal may be any one of the following: a PRACH, a random access preamble signal (e.g., Msg 1), an uplink signal (e.g., Msg 3), or other public signals. The data signal may be a signal for transmitting data information. For example, the data signal may be a PUSCH or other data signal. The control signal may be a signal for transmitting control information. For example, the control signal may be any one of the following: a PUCCH, an SRS, or other control signal.

[0132] In a possible scheme, when signal #2 is a public signal, the priority of signal #2 is equal to or greater than the priority of signal #4, and the relay device transmits signal #2 within the target period.

[0133] For example, signal #2 is a public signal, and signal #4 is a public signal. For example, signal #2 may be any one of the following: a PRACH, a random access preamble signal (e.g., Msg 1), an uplink signal (e.g., Msg 3), or other public signals. Signal #4 may be any one of the following: a PRACH, a random access preamble signal (e.g., Msg 1), an uplink signal (e.g., Msg 3), or other public signals.

[0134] For example, signal #2 is a public signal and signal #4 is a data signal. For example, signal #2 may be any one of the following: a PRACH, a random access preamble signal (e.g., Msg 1), an uplink signal (e.g., Msg 3), or other public signals. Signal #4 may be a PUSCH or other data signal.

[0135] For example, signal #2 is a public signal and signal #4 is a control signal. For example, signal #2 may be any one of the following: PRACH, a random access preamble signal (e.g., Msg 1), an uplink signal (e.g., Msg 3), or other public signals. Signal #4 may be any one of the following: PUCCH, SRS, or other control signals.

[0136] In another possible scheme, when signal #2 is a non-public signal and signal #4 is a non-public signal, the priority of signal #2 is equal to or greater than the priority of signal #4, and the relay device transmits signal #2 within the target period.

[0137] For example, signal #2 is a control signal and signal #4 is a control signal. For example, signal #2 may be any one of the following: PUCCH, SRS, or other control signal. Signal #4 may be any one of the following: PUCCH, SRS, or other control signal.

[0138] For example, signal #2 is a control signal and signal #4 is a data signal. For example, signal #2 may be any one of the following: PUCCH, SRS, or other control signal. Signal #4 may be PUSCH or other data signal.

[0139] For example, signal #2 is a data signal and signal #4 is a control signal. For example, signal #2 may be a PUSCH or other data signal. Signal #4 may be any one of the following: a PUCCH, an SRS, or other control signal.

[0140] For example, signal #2 is a data signal and signal #4 is a data signal. For example, signal #2 may be a PUSCH or other data signal. Signal #4 may be a PUSCH or other data signal.

[0141] In another possible scheme, when signal #2 is a control signal and signal #4 is a semi-persistently scheduled signal, the priority of signal #2 is equal to or greater than the priority of signal #4, and the relay device transmits signal #2 within the target period.

[0142] For example, signal #2 may be any one of the following: PUCCH, SRS, or other control signal. Signal #4 may be a semi-persistently scheduled PUCCH, a semi-persistently scheduled SRS, or other semi-persistently scheduled signal.

[0143] In another possible scheme, when signal #2 is a semi-persistently scheduled signal and signal #4 is a semi-persistently scheduled signal, the priority of signal #2 is equal to or greater than the priority of signal #4, and the relay device transmits signal #2 within the target period.

[0144] For example, signal #2 may be a semi-persistently scheduled PUCCH, a semi-persistently scheduled SRS, or other semi-persistently scheduled signal, and signal #4 may be a semi-persistently scheduled PUCCH, a semi-persistently scheduled SRS, or other semi-persistently scheduled signal.

[0145] Optionally, the priorities of the signal #2 and the signal #4 are classified based on the function of the signals: when the function of the signal #2 satisfies a first condition, the relay device transmits the signal #2 within the target period;

[0146] The function of signal #2 meeting the first condition may include: The function of signal #2 may be at least one of the following: feedback measurement report, scheduling request, and time synchronization.

[0147] According to Case #B, when the network device is configured to transmit Signal #2 and Signal #4 within the target period, the relay device may determine whether to transmit Signal #2 within the target period by determining whether Signal #2 and / or Signal #4 satisfy a first condition (the priority of Signal #2 is equal to or greater than the priority of Signal #4). When the relay device determines that Signal #2 and / or Signal #4 satisfy the first condition, the relay device transmits Signal #2 within the target period, thereby ensuring preferential signal interaction between the relay device and the network device, allowing the network device to control or assist in controlling the relay device, and enabling the relay device to preferentially obtain a correct configuration.

[0148] Case #C: When signal #1 and / or signal #4 satisfy the first condition, the relay device receives signal #1 within the target period.

[0149] The first condition may be that the priority of signal #1 is equal to or greater than the priority of signal #4.

[0150] For example, the intermediate device does not transmit signal #4 within the time period of interest.

[0151] Optionally, the priorities of signals #1 and #4 are classified based on signal type, where there is at least one of the following signal types: public signal, data signal and control signal.

[0152] The public signal may be any one of the following: SSB, system information, paging information, a random access response signal (e.g., Msg 2), a downlink signal (e.g., Msg 4), a PRACH, a random access preamble signal (e.g., Msg 1), an uplink signal (e.g., Msg 3), or other public signals. The data signal may be a signal for transmitting data information. For example, the data signal may be any one of the following: PDSCH, PUSCH, or other data signals. The control signal may be a signal for transmitting control information. For example, the control signal may be any one of the following: PDCCH, CSI-RS, TRS, PUCCH, SRS, or other control signals.

[0153] In a possible scheme, when signal #1 is a public signal, the priority of signal #1 is equal to or greater than the priority of signal #4, and the relay device receives signal #1 within the target period.

[0154] For example, signal #1 is a public signal, and signal #4 is a public signal. For example, signal #1 may be any one of the following: SSB, system information, paging information, a random access response signal (e.g., Msg 2), a downlink signal (e.g., Msg 4), or other public signals. Signal #4 may be any one of the following: PRACH, a random access preamble signal (e.g., Msg 1), an uplink signal (e.g., Msg 3), or other public signals.

[0155] For example, signal #1 is a public signal and signal #4 is a data signal. For example, signal #1 may be any one of the following: SSB, system information, paging information, a random access response signal (e.g., Msg 2), a downlink signal (e.g., Msg 4), or other public signals. Signal #4 may be a PUSCH or other data signal.

[0156] For example, signal #1 is a public signal and signal #4 is a control signal. For example, signal #1 may be any one of the following: SSB, system information, paging information, a random access response signal (e.g., Msg 2), a downlink signal (e.g., Msg 4), or other public signals. Signal #4 may be any one of the following: PUCCH, SRS, or other control signals.

[0157] In another possible scheme, when signal #1 is a non-public signal and signal #4 is a non-public signal, the priority of signal #1 is equal to or greater than the priority of signal #4, and the relay device receives signal #1 within the target period.

[0158] For example, signal #1 is a control signal and signal #4 is a control signal. For example, signal #1 may be any one of the following: PDCCH, CSI-RS, TRS, or other control signal. Signal #4 may be any one of the following: PUCCH, SRS, or other control signal.

[0159] For example, signal #1 is a control signal and signal #4 is a data signal. For example, signal #1 may be any one of the following: PDCCH, CSI-RS, TRS, or other control signal. Signal #4 may be PUSCH or other data signal.

[0160] For example, signal #1 is a data signal and signal #4 is a control signal. For example, signal #1 may be a PDSCH or other data signal. Signal #4 may be one of the following: a PUCCH, an SRS, or other control signal.

[0161] For example, signal #1 is a data signal and signal #4 is a data signal. For example, signal #1 may be a PDSCH or other data signal. Signal #4 may be a PUSCH or other data signal.

[0162] In another possible scheme, when signal #1 is a control signal and signal #4 is a semi-persistently scheduled signal, the priority of signal #1 is equal to or greater than the priority of signal #4, and the relay device receives signal #1 within the target period.

[0163] For example, signal #1 may be any one of the following: PDCCH, CSI-RS, TRS or other control signal, and signal #4 may be a semi-persistently scheduled PUCCH, a semi-persistently scheduled SRS or other semi-persistently scheduled signal.

[0164] In another possible scheme, when signal #1 is a semi-persistently scheduled signal and signal #4 is a semi-persistently scheduled signal, the priority of signal #1 is equal to or greater than the priority of signal #4, and the relay device receives signal #1 within the target period.

[0165] For example, signal #1 may be a semi-persistently scheduled PDCCH, a semi-persistently scheduled CSI-RS, a semi-persistently scheduled TRS, or other semi-persistently scheduled signal, and signal #4 may be a semi-persistently scheduled PUCCH, a semi-persistently scheduled SRS, or other semi-persistently scheduled signal.

[0166] Optionally, the priorities of Signal #1 and Signal #4 are classified based on the function of the signals: When the function of Signal #1 satisfies a first condition, the relay device receives Signal #1 within the target period.

[0167] The function of signal #1 meeting the first condition may include the following: The function of signal #1 may be at least one of the following: beam management, power control, connection and disconnection control, timing information, or configuration information of the second signal.

[0168] According to Case #C, when the network device is configured to transmit signal #1 and signal #4 within the target period, the relay device may determine whether to receive signal #1 within the target period by determining whether signal #1 and / or signal #4 satisfy a first condition (the priority of signal #1 is equal to or greater than the priority of signal #4). When the relay device determines that signal #1 and / or signal #4 satisfy the first condition, the relay device receives signal #1 within the target period, thereby ensuring preferential signal interaction between the relay device and the network device, allowing the network device to control or assist in controlling the relay device, and enabling the relay device to preferentially obtain a correct configuration.

[0169] Case #D: When signal #2 and / or signal #3 satisfy the first condition, the relay device transmits signal #2 within the target period.

[0170] The first condition may be that the priority of signal #2 is equal to or greater than the priority of signal #3.

[0171] For example, the intermediate device does not transmit signal #3 within the time period of interest.

[0172] Optionally, the priorities of signals #2 and #3 are classified based on signal type, where there is at least one of the following signal types: public signal, data signal and control signal.

[0173] The public signal may be any one of the following: SSB, system information, paging information, a random access response signal (e.g., Msg 2), a downlink signal (e.g., Msg 4), a PRACH, a random access preamble signal (e.g., Msg 1), an uplink signal (e.g., Msg 3), or other public signals. The data signal may be a signal for transmitting data information. For example, the data signal may be any one of the following: PDSCH, PUSCH, or other data signals. The control signal may be a signal for transmitting control information. For example, the control signal may be any one of the following: PDCCH, CSI-RS, TRS, PUCCH, SRS, or other control signals.

[0174] In a possible scheme, when signal #2 is a public signal, the priority of signal #2 is equal to or greater than the priority of signal #3, and the relay device transmits signal #2 within the target period.

[0175] For example, signal #2 is a public signal, and signal #3 is a public signal. For example, signal #2 may be any one of the following: a PRACH, a random access preamble signal (e.g., Msg 1), an uplink signal (e.g., Msg 3), or other public signals. Signal #3 may be any one of the following: an SSB, system information, paging information, a random access response signal (e.g., Msg 2), a downlink signal (e.g., Msg 4), or other public signals.

[0176] For example, signal #2 is a public signal and signal #3 is a data signal. For example, signal #2 may be any one of the following: a PRACH, a random access preamble signal (e.g., Msg 1), an uplink signal (e.g., Msg 3), or other public signal. Signal #3 may be a PDSCH or other data signal.

[0177] For example, signal #2 is a public signal and signal #3 is a control signal. For example, signal #2 may be any one of the following: PRACH, a random access preamble signal (e.g., Msg 1), an uplink signal (e.g., Msg 3), or other public signals. Signal #3 may be any one of the following: PDCCH, CSI-RS, TRS, or other control signals.

[0178] In another possible scheme, when signal #2 is a non-public signal and signal #3 is a non-public signal, the priority of signal #2 is equal to or greater than the priority of signal #3, and the relay device transmits signal #2 within the target period.

[0179] For example, signal #2 is a control signal and signal #3 is a control signal. For example, signal #2 may be any one of the following: PUCCH, SRS, or other control signal. Signal #3 may be any one of the following: PDCCH, CSI-RS, TRS, or other control signal.

[0180] For example, signal #2 is a control signal and signal #3 is a data signal. For example, signal #2 may be any one of the following: PUCCH, SRS, or other control signal. Signal #3 may be PDSCH or other data signal.

[0181] For example, signal #2 is a data signal and signal #3 is a control signal. For example, signal #2 may be a PUSCH or other data signal. Signal #3 may be any one of the following: PDCCH, CSI-RS, TRS, or other control signal.

[0182] For example, signal #2 is a data signal and signal #3 is a data signal. For example, signal #2 may be a PUSCH or other data signal. Signal #3 may be a PDSCH or other data signal.

[0183] In another possible scheme, when signal #2 is a control signal and signal #3 is a semi-persistently scheduled signal, the priority of signal #2 is equal to or greater than the priority of signal #3, and the relay device transmits signal #2 within the target period.

[0184] For example, signal #2 may be any one of the following: PUCCH, SRS or other control signal, and signal #3 may be a semi-persistently scheduled PDCCH, a semi-persistently scheduled CSI-RS, a semi-persistently scheduled TRS or other semi-persistently scheduled signal.

[0185] In another possible scheme, when signal #2 is a semi-persistently scheduled signal and signal #3 is a semi-persistently scheduled signal, the priority of signal #2 is equal to or greater than the priority of signal #3, and the relay device transmits signal #2 within the target period.

[0186] For example, signal #2 may be a semi-persistently scheduled PUCCH, a semi-persistently scheduled SRS, or other semi-persistently scheduled signal, and signal #3 may be a semi-persistently scheduled PDCCH, a semi-persistently scheduled CSI-RS, a semi-persistently scheduled TRS, or other semi-persistently scheduled signal.

[0187] Optionally, the priorities of the signal #2 and the signal #3 are classified based on the function of the signals: when the function of the signal #2 satisfies a first condition, the relay device transmits the signal #2 within the target period;

[0188] The function of signal #2 meeting the first condition may include: The function of signal #2 may be at least one of the following: feedback measurement report, scheduling request, and time synchronization.

[0189] According to Case #D, when the network device is configured to transmit Signal #2 and Signal #3 within the target period, the relay device may determine whether to transmit Signal #2 within the target period by determining whether Signal #2 and / or Signal #3 satisfy a first condition (the priority of Signal #2 is equal to or greater than the priority of Signal #3). When the relay device determines that Signal #2 and / or Signal #3 satisfy the first condition, the relay device transmits Signal #2 within the target period, thereby ensuring preferential signal interaction between the relay device and the network device, allowing the network device to control or assist in controlling the relay device, and enabling the relay device to preferentially obtain a correct configuration.

[0190] Case #E: When signal #1 and / or signal #3 do not satisfy the first condition, the relay device transmits signal #3 within the target period.

[0191] The first condition may be that the priority of signal #1 is equal to or greater than the priority of signal #3. Signal #1 and / or signal #3 do not satisfy the first condition, i.e., the priority of signal #3 is higher than the priority of signal #1.

[0192] For example, the intermediate device does not receive signal #1 within the time period of interest.

[0193] Optionally, the priorities of signal #1 and signal #3 are classified based on signal type, where there is at least one of the following signal types: public signal, data signal and control signal.

[0194] The public signal may be any one of the following: SSB, system information, paging information, a random access response signal (e.g., Msg 2), a downlink signal (e.g., Msg 4), or other public signals. The data signal may be a signal for transmitting data information. For example, the data signal may be a PDSCH or other data signal. The control signal may be a signal for transmitting control information. For example, the control signal may be any one of the following: PDCCH, CSI-RS, TRS, or other control signal.

[0195] In a possible scheme, when signal #3 is a public signal, the priority of signal #3 is higher than the priority of signal #1, and the relay device transmits signal #3 within the target period.

[0196] For example, signal #3 is a public signal and signal #1 is a public signal. For example, signal #3 may be any one of the following: SSB, system information, paging information, a random access response signal (e.g., Msg 2), a downlink signal (e.g., Msg 4), or other public signals. Signal #1 may be any one of the following: SSB, system information, paging information, a random access response signal (e.g., Msg 2), a downlink signal (e.g., Msg 4), or other public signals.

[0197] For example, signal #3 is a public signal and signal #1 is a data signal. For example, signal #3 may be any one of the following: SSB, system information, paging information, a random access response signal (e.g., Msg 2), a downlink signal (e.g., Msg 4), or other public signals. Signal #1 may be a PDSCH or other data signal.

[0198] For example, signal #3 is a public signal and signal #1 is a control signal. For example, signal #3 may be any one of the following: SSB, system information, paging information, a random access response signal (e.g., Msg 2), a downlink signal (e.g., Msg 4), or other public signals. Signal #1 may be any one of the following: PDCCH, CSI-RS, TRS, or other control signals.

[0199] In another possible scheme, when signal #3 is a control signal and signal #1 is a non-public signal, the priority of signal #3 is higher than the priority of signal #1, and the relay device transmits signal #3 within the target period.

[0200] For example, signal #3 is a control signal and signal #1 is a data signal. For example, signal #3 may be any one of the following: PDCCH, CSI-RS, TRS, or other control signal. Signal #1 may be PDSCH or other data signal.

[0201] For example, signal #3 is a control signal and signal #1 is a control signal. For example, signal #3 may be any one of the following: PDCCH, CSI-RS, TRS, or other control signal. Signal #1 may be any one of the following: PDCCH, CSI-RS, TRS, or other control signal.

[0202] In another possible scheme, when signal #3 is a control signal and signal #1 is a semi-persistently scheduled signal, the priority of signal #3 is higher than the priority of signal #1, and the relay device transmits signal #3 within the target period.

[0203] For example, signal #3 may be any one of the following: PDCCH, CSI-RS, TRS, or other control signal. Signal #1 may be a semi-persistently scheduled PDCCH, a semi-persistently scheduled CSI-RS, a semi-persistently scheduled TRS, or other semi-persistently scheduled signal.

[0204] In another possible scheme, when signal #3 is a semi-persistently scheduled signal and signal #1 is a semi-persistently scheduled signal, the priority of signal #3 is higher than the priority of signal #1, and the relay device transmits signal #3 within the target period.

[0205] For example, signal #3 may be a semi-persistently scheduled PDCCH, a semi-persistently scheduled CSI-RS, a semi-persistently scheduled TRS, or other semi-persistently scheduled signal, and signal #1 may be a semi-persistently scheduled PDCCH, a semi-persistently scheduled CSI-RS, a semi-persistently scheduled TRS, or other semi-persistently scheduled signal.

[0206] According to Case #E, when the network device is configured to transmit Signal #1 and Signal #3 within the target period, the relay device may determine whether to transmit Signal #3 within the target period by determining whether Signal #1 and / or Signal #3 satisfy a first condition. When the relay device determines that Signal #1 and / or Signal #3 do not satisfy the first condition, specifically, that the priority of Signal #3 is higher than the priority of Signal #1, the relay device transmits Signal #3 within the target period, so that the relay device preferentially supports signal transmission between the network device and the terminal device to ensure communication continuity between the network device and the terminal device.

[0207] Case #F: When signal #2 and / or signal #4 do not satisfy the first condition, the relay device transmits signal #4 within the target period.

[0208] The first condition may be that the priority of signal #2 is equal to or greater than the priority of signal #4. Signal #2 and / or signal #4 do not satisfy the first condition, i.e., the priority of signal #4 is higher than the priority of signal #2.

[0209] For example, the intermediate device does not transmit signal #2 within the time period of interest.

[0210] Optionally, the priorities of signals #2 and #4 are classified based on signal type, where there is at least one of the following signal types: public signal, data signal and control signal.

[0211] The public signal may be any one of the following: a PRACH, a random access preamble signal (e.g., Msg 1), an uplink signal (e.g., Msg 3), or other public signals. The data signal may be a signal for transmitting data information. For example, the data signal may be a PUSCH or other data signal. The control signal may be a signal for transmitting control information. For example, the control signal may be any one of the following: a PUCCH, an SRS, or other control signal.

[0212] In a possible scheme, when signal #4 is a public signal, the priority of signal #4 is equal to or greater than the priority of signal #2, and the relay device transmits signal #4 within the target period.

[0213] For example, signal #4 is a public signal and signal #2 is a public signal. For example, signal #4 may be any one of the following: a PRACH, a random access preamble signal (e.g., Msg 1), an uplink signal (e.g., Msg 3), or other public signals. Signal #2 may be any one of the following: a PRACH, a random access preamble signal (e.g., Msg 1), an uplink signal (e.g., Msg 3), or other public signals.

[0214] For example, signal #4 is a public signal and signal #2 is a data signal. For example, signal #4 may be any one of the following: a PRACH, a random access preamble signal (e.g., Msg 1), an uplink signal (e.g., Msg 3), or other public signals. Signal #2 may be a PUSCH or other data signal.

[0215] For example, signal #4 is a public signal and signal #2 is a control signal. For example, signal #4 may be any one of the following: PRACH, a random access preamble signal (e.g., Msg 1), an uplink signal (e.g., Msg 3), or other public signals. Signal #2 may be any one of the following: PUCCH, SRS, or other control signals.

[0216] In another possible scheme, when signal #4 is a control signal and signal #2 is a non-public signal, the priority of signal #4 is higher than the priority of signal #2, and the relay device transmits signal #4 within the target period.

[0217] For example, signal #4 is a control signal and signal #2 is a data signal. For example, signal #4 may be any one of the following: PUCCH, SRS, or other control signal. Signal #2 may be PUSCH or other data signal.

[0218] For example, signal #4 is a control signal and signal #2 is a control signal. For example, signal #4 may be any one of the following: PUCCH, SRS, or other control signal. Signal #2 may be any one of the following: PUCCH, SRS, or other control signal.

[0219] In another possible scheme, when signal #4 is a control signal and signal #2 is a semi-persistently scheduled signal, the priority of signal #4 is higher than the priority of signal #2, and the relay device transmits signal #4 within the target period.

[0220] For example, signal #4 may be any one of the following: PUCCH, SRS, or other control signal. Signal #2 may be a semi-persistently scheduled PUCCH, a semi-persistently scheduled SRS, or other semi-persistently scheduled signal.

[0221] In another possible scheme, when signal #4 is a semi-persistently scheduled signal and signal #2 is a semi-persistently scheduled signal, the priority of signal #4 is higher than the priority of signal #42, and the relay device transmits signal #4 within the target period.

[0222] For example, signal #4 may be a semi-persistently scheduled PUCCH, a semi-persistently scheduled SRS, or other semi-persistently scheduled signal, and signal #2 may be a semi-persistently scheduled PUCCH, a semi-persistently scheduled SRS, or other semi-persistently scheduled signal.

[0223] According to Case #F, when the network device is configured to transmit signal #2 and signal #4 within the target period, the relay device may determine whether to transmit signal #4 within the target period by determining whether signal #2 and / or signal #4 satisfy a first condition. When the relay device determines that signal #2 and / or signal #4 do not satisfy the first condition, specifically, that the priority of signal #4 is higher than the priority of signal #2, the relay device transmits signal #4 within the target period, so that the relay device preferentially supports signal transmission between the network device and the terminal device to ensure communication continuity between the network device and the terminal device.

[0224] Case #G: When signal #1 and / or signal #4 do not satisfy the first condition, the relay device transmits signal #4 within the target period.

[0225] The first condition may be that the priority of signal #1 is higher than the priority of signal #4. Signal #1 and / or signal #4 do not satisfy the first condition, in other words, the priority of signal #4 is higher than the priority of signal #1.

[0226] For example, the intermediate device does not receive signal #1 within the time period of interest.

[0227] Optionally, the priorities of signals #1 and #4 are classified based on signal type, where there is at least one of the following signal types: public signal, data signal and control signal.

[0228] The public signal may be any one of the following: SSB, system information, paging information, a random access response signal (e.g., Msg 2), a downlink signal (e.g., Msg 4), a PRACH, a random access preamble signal (e.g., Msg 1), an uplink signal (e.g., Msg 3), or other public signals. The data signal may be a signal for transmitting data information. For example, the data signal may be any one of the following: PDSCH, PUSCH, or other data signals. The control signal may be a signal for transmitting control information. For example, the control signal may be any one of the following: PDCCH, CSI-RS, TRS, PUCCH, SRS, or other control signals.

[0229] In a possible scheme, when signal #4 is a public signal, the priority of signal #4 is higher than the priority of signal #1, and the relay device transmits signal #4 within the target period.

[0230] For example, signal #4 is a public signal and signal #1 is a public signal. For example, signal #4 may be any one of the following: a PRACH, a random access preamble signal (e.g., Msg 1), an uplink signal (e.g., Msg 3), or other public signals. Signal #1 may be any one of the following: an SSB, system information, paging information, a random access response signal (e.g., Msg 2), a downlink signal (e.g., Msg 4), or other public signals.

[0231] For example, signal #4 is a public signal and signal #1 is a data signal. For example, signal #4 may be any one of the following: a PRACH, a random access preamble signal (e.g., Msg 1), an uplink signal (e.g., Msg 3), or other public signal. Signal #1 may be a PDSCH or other data signal.

[0232] For example, signal #4 is a public signal and signal #1 is a control signal. For example, signal #4 may be any one of the following: PRACH, a random access preamble signal (e.g., Msg 1), an uplink signal (e.g., Msg 3), or other public signals. Signal #1 may be any one of the following: PDCCH, CSI-RS, TRS, or other control signals.

[0233] In another possible scheme, when signal #4 is a control signal and signal #1 is a non-public signal, the priority of signal #4 is higher than the priority of signal #1, and the relay device transmits signal #4 within the target period.

[0234] For example, signal #4 is a control signal and signal #1 is a data signal. For example, signal #4 may be any one of the following: PUCCH, SRS, or other control signal. Signal #1 may be PDSCH or other data signal.

[0235] For example, signal #4 is a control signal and signal #1 is a control signal. For example, signal #4 may be one of the following: PUCCH, SRS, or other control signal. Signal #1 may be PDSCH or other data signal.

[0236] In another possible scheme, when signal #4 is a control signal and signal #1 is a semi-persistently scheduled signal, the priority of signal #4 is higher than the priority of signal #1, and the relay device transmits signal #4 within the target period.

[0237] For example, signal #4 may be any one of the following: PUCCH, SRS or other control signal. Signal #1 may be a semi-persistently scheduled PDCCH, a semi-persistently scheduled CSI-RS, a semi-persistently scheduled TRS or other semi-persistently scheduled signal.

[0238] In another possible scheme, when signal #4 is a semi-persistently scheduled signal and signal #41 is a semi-persistently scheduled signal, the priority of signal #4 is higher than the priority of signal #1, and the relay device transmits signal #4 within the target period.

[0239] For example, signal #4 may be a semi-persistently scheduled PUCCH, a semi-persistently scheduled SRS, or other semi-persistently scheduled signal, and signal #1 may be a semi-persistently scheduled PDCCH, a semi-persistently scheduled CSI-RS, a semi-persistently scheduled TRS, or other semi-persistently scheduled signal.

[0240] According to Case #G, when the network device is configured to transmit signal #1 and signal #4 within the target period, the relay device may determine whether to transmit signal #4 within the target period by determining whether signal #1 and / or signal #4 satisfy a first condition. When the relay device determines that signal #1 and / or signal #4 do not satisfy the first condition, specifically, that the priority of signal #4 is higher than the priority of signal #1, the relay device transmits signal #4 within the target period, so that the relay device preferentially supports signal transmission between the network device and the terminal device to ensure communication continuity between the network device and the terminal device.

[0241] Case #H: When signal #2 and / or signal #3 do not satisfy the first condition, the relay device transmits signal #3 within the target period.

[0242] The first condition may be that the priority of signal #2 is equal to or greater than the priority of signal #3. Signal #2 and / or signal #3 do not satisfy the first condition, i.e., the priority of signal #3 is higher than the priority of signal #2.

[0243] For example, the intermediate device does not transmit signal #2 within the time period of interest.

[0244] Optionally, the priorities of signals #2 and #3 are classified based on signal type, where there is at least one of the following signal types: public signal, data signal and control signal.

[0245] The public signal may be any one of the following: SSB, system information, paging information, a random access response signal (e.g., Msg 2), a downlink signal (e.g., Msg 4), a PRACH, a random access preamble signal (e.g., Msg 1), an uplink signal (e.g., Msg 3), or other public signals. The data signal may be a signal for transmitting data information. For example, the data signal may be any one of the following: PDSCH, PUSCH, or other data signals. The control signal may be a signal for transmitting control information. For example, the control signal may be any one of the following: PDCCH, CSI-RS, TRS, PUCCH, SRS, or other control signals.

[0246] In a possible scheme, when signal #3 is a public signal, the priority of signal #3 is higher than the priority of signal #2, and the relay device transmits signal #3 within the target period.

[0247] For example, signal #3 is a public signal, and signal #2 is a public signal. For example, signal #3 may be any one of the following: SSB, system information, paging information, a random access response signal (e.g., Msg 2), a downlink signal (e.g., Msg 4), or other public signals. Signal #2 may be any one of the following: PRACH, a random access preamble signal (e.g., Msg 1), an uplink signal (e.g., Msg 3), or other public signals.

[0248] For example, signal #3 is a public signal and signal #2 is a data signal. For example, signal #3 may be any one of the following: SSB, system information, paging information, a random access response signal (e.g., Msg 2), a downlink signal (e.g., Msg 4), or other public signals. Signal #2 may be a PUSCH or other data signal.

[0249] For example, signal #3 is a public signal and signal #2 is a control signal. For example, signal #3 may be any one of the following: SSB, system information, paging information, a random access response signal (e.g., Msg 2), a downlink signal (e.g., Msg 4), or other public signals. Signal #2 may be any one of the following: PUCCH, SRS, or other control signals.

[0250] In another possible scheme, when signal #3 is a control signal and signal #2 is a non-public signal, the priority of signal #3 is higher than the priority of signal #2, and the relay device transmits signal #3 within the target period.

[0251] For example, signal #3 is a control signal and signal #2 is a data signal. For example, signal #3 may be any one of the following: PDCCH, CSI-RS, TRS, or other control signal. Signal #2 may be PUSCH or other data signal.

[0252] For example, signal #2 is a control signal and signal #3 is a control signal. For example, signal #3 may be any one of the following: PDCCH, CSI-RS, TRS, or other control signal. Signal #2 may be any one of the following: PUCCH, SRS, or other control signal.

[0253] In another possible scheme, when signal #3 is a control signal and signal #2 is a semi-persistently scheduled signal, the priority of signal #3 is higher than the priority of signal #2, and the relay device transmits signal #3 within the target period.

[0254] For example, signal #3 may be any one of the following: PDCCH, CSI-RS, TRS or other control signal, and signal #2 may be a semi-persistently scheduled PUCCH, a semi-persistently scheduled SRS or other semi-persistently scheduled signal.

[0255] In another possible scheme, when signal #3 is a semi-persistently scheduled signal and signal #2 is a semi-persistently scheduled signal, the priority of signal #3 is higher than the priority of signal #2, and the relay device transmits signal #3 within the target period.

[0256] For example, signal #3 may be a semi-persistently scheduled PDCCH, a semi-persistently scheduled CSI-RS, a semi-persistently scheduled TRS, or other semi-persistently scheduled signal, and signal #2 may be a semi-persistently scheduled PUCCH, a semi-persistently scheduled SRS, or other semi-persistently scheduled signal.

[0257] According to Case #H, when the network device is configured to transmit signal #2 and signal #3 within the target period, the relay device may determine whether to transmit signal #3 within the target period by determining whether signal #2 and / or signal #3 satisfy a first condition. When the relay device determines that signal #2 and / or signal #3 do not satisfy the first condition, specifically, that the priority of signal #3 is higher than the priority of signal #2, the relay device transmits signal #3 within the target period, so that the relay device preferentially supports signal transmission between the network device and the terminal device to ensure communication continuity between the network device and the terminal device.

[0258] Based on the above technical solution, when a network device is configured to transmit a first signal (e.g., signal #1 or signal #2) and a second signal (e.g., signal #3 or signal #4) within a target period, the relay device may determine whether the first signal and / or the second signal satisfy a first condition, specifically, whether the priority of the first signal is equal to or greater than the priority of the second signal, to determine which signal to transmit. When the first signal and / or the second signal satisfy the first condition, specifically, when the priority of the first signal is equal to or greater than the priority of the second signal, the relay device transmits the first signal within the target period, thereby ensuring preferential signal interaction between the relay device and the network device, allowing the network device to control or assist in controlling the relay device, and enabling the relay device to preferentially obtain a correct configuration. When the first signal and / or the second signal does not satisfy the first condition, specifically, when the priority of the second signal is higher than the priority of the first signal, the relay device transmits the second signal within the target period, so that the relay device preferentially supports the signal transmission between the network device and the terminal device to ensure the continuity of communication between the network device and the terminal device. According to this method, the relay device can correctly process the first signal and the second signal and avoid degradation of relay performance caused by contention between the first signal and the second signal.

[0259] Optionally, before determining whether the first signal and / or the second signal satisfy the first condition, the method 300 further includes:

[0260] When the first signal and the second signal satisfy the second condition, the relay device transmits the first signal and the second signal within the target time period.

[0261] It should be understood that the relay device transmits the first signal and the second signal within a time period of interest, or in other words, the relay device transmits both the first signal and the second signal within a time period of interest. For example, the relay device simultaneously transmits the first signal and the second signal at a specific time point. In another example, the relay device simultaneously transmits the first signal and the second signal within a certain time interval.

[0262] When the first signal and the second signal satisfy the second condition, the relay device may transmit the first signal and the second signal within the time period of interest in two possible manners.

[0263] Possibly, when the difference between the power of the first signal and the target power is less than or equal to a first threshold, the relay device transmits the first signal and the second signal within the time period of interest.

[0264] The power may be the power spectral density, or the power of a single resource element, or the power of a subcarrier, or the power of a data symbol, which is not limited in this embodiment of this application.

[0265] The target power may be the power of the second signal, or may be the sum of the power of the second signal and the amplification gain (or amplification factor) of the repeater device for the second signal. The unit of the amplification gain may be dBm (dBm) or dB (dB).

[0266] The first threshold may be an integer, for example, 10. In this case, if the difference between the power of the first signal and the target power is less than or equal to 10, the relay device may transmit the first signal and the second signal within the target period.

[0267] Optionally, the target power is related to at least one of the power of the third signal, the bandwidth of the second signal, and the amplification gain of the relay device for the second signal. The third signal is related to the second signal. For example, a quasi-colocation (QCL) relationship is established between the third signal and the second signal. In another example, beam transmission is performed between the third signal and the second signal. The third signal may be used to assist the relay device in receiving power. For example, the relay device transmits the third signal to the network device, and the network device determines the received power based on the third signal and transmits an indication of the received power to the relay device, so that the relay device can receive power based on the indication of the received power. In another example, the relay device transmits the third signal to the terminal device, and the terminal device determines the received power based on the third signal and transmits the indication of the received power to the network device. After receiving the indication of the received power, the network device transmits the indication of the received power to the relay device, so that the relay device can receive power based on the indication of the received power.

[0268] Optionally, the difference between the power of the first signal and the power of the second signal is related to the type of the first signal and / or the type of the second signal. For example, when the difference between the power of the first signal and the power of the second signal is 0, the first signal and / or the second signal may be a PDSCH. In another example, when the difference between the power of the first signal and the power of the second signal is 9, the first signal and / or the second signal may be a PDSCH. In another example, when the difference between the power of the first signal and the power of the second signal is 10, the first signal and / or the second signal may be a PDCCH. In another example, when the difference between the power of the first signal and the power of the second signal is 0, the first signal and / or the second signal may be a PUSCH. In another example, when the difference between the power of the first signal and the power of the second signal is 9, the first signal and / or the second signal may be a PUSCH. In another example, when the difference between the power of the first signal and the power of the second signal is 10, the first signal and / or the second signal may be a PUCCH.

[0269] Optionally, the difference between the power of the first signal and the power of the second signal is related to the modulation scheme of the first signal and / or the modulation scheme of the second signal, where the modulation scheme has a one-to-one correspondence with the modulation order. For example, when the difference between the power of the first signal and the power of the second signal is 0, the modulation scheme of the first signal and / or the modulation scheme of the second signal may be 64 quadrature amplitude modulation (QAM) or 256 QAM. In another example, when the difference between the power of the first signal and the power of the second signal is 6, the modulation scheme of the first signal and / or the modulation scheme of the second signal may be 16 QAM. In another example, when the difference between the power of the first signal and the power of the second signal is 9, the modulation scheme of the first signal and / or the modulation scheme of the second signal may be quadrature phase shift keying (QPSK). In another example, when the difference between the power of the first signal and the power of the second signal is 12, the modulation scheme of the first signal and / or the modulation scheme of the second signal may be π / 2 binary phase shift keying (BPSK).

[0270] In another possible scheme, when a difference between the modulation order of the first signal and the modulation order of the second signal is less than a second threshold, the relay device transmits the first signal and the second signal within the time period of interest.

[0271] The second threshold may be an integer. For example, the second threshold may be 1. In this case, when the difference between the modulation order of the first signal and the modulation order of the second signal is 1 or less, the relay device may transmit the first signal and the second signal within the target period. For example, when the modulation order of the first signal is QPSK and the modulation order of the second signal is one of π / 2BPSK, QPSK, and 16QAM, the relay device may transmit the first signal and the second signal within the target period. In another example, when the modulation order of the first signal is 64QAM and the modulation order of the second signal is one of 16QAM, 64QAM, and 256QAM, the relay device may transmit the first signal and the second signal within the target period. In another example, when the modulation order of the first signal is 256QAM and the modulation order of the second signal is 64QAM or 256QAM, the relay device may transmit the first signal and the second signal within the target period.

[0272] It should be understood that the second condition may be that the difference between the power of the first signal and the power of the second signal is less than or equal to a first threshold, or that the difference between the modulation order of the first signal and the modulation order of the second signal is less than a second threshold, or that the difference between the power of the first signal and the power of the second signal is less than or equal to a first threshold and that the difference between the modulation order of the first signal and the modulation order of the second signal is less than a second threshold, or may be other possible conditions, which are not limited in this embodiment of this application.

[0273] According to the above scheme, when the first signal and the second signal satisfy the second condition, the relay device may transmit the first signal and the second signal within the target period, thereby improving the signal processing efficiency of the relay device.

[0274] The above mainly uses the example of whether the first signal and the second signal satisfy the first condition or the second condition for explanation. This embodiment of the present application is not limited thereto. To further improve the signal processing efficiency of the relay device, the transmission time of the first signal may be limited. In other words, the network device may be configured to transmit the first signal at a specific time (i.e., a target period). Correspondingly, the relay device may determine whether the first signal needs to be preferentially transmitted at the specific time. In this way, the relay device can determine the signal to be transmitted at the specific time without determining whether the first signal and / or the second signal satisfy the first condition or the second condition, thereby improving the signal processing efficiency of the relay device.

[0275] The relay device may transmit the first signal at a particular time in several ways:

[0276] Scheme #1: In a TDD configuration period, a relay device may transmit a first signal within a switching slot (or flexible slot), where the slot before the switching slot is a downlink slot and the slot after the switching slot is an uplink slot, or the slot before the switching slot is an uplink slot and the slot after the switching slot is a downlink slot.

[0277] In a possible scheme, in a TDD configuration period, the intermediate device receives signal #1 in a switching slot, the slot before the switching slot is a downlink slot, and the slot after the switching slot is an uplink slot.

[0278] 4 shows a diagram of a data transmission scheme according to an embodiment of this application. As shown in FIG. 4, assume that one TDD configuration period has five slots, denoted as slot 0, slot 1, slot 2, slot 3, and slot 4, respectively. Slot 0, slot 1, and slot 2 are downlink slots, and may include downlink symbols. Slot 3 may be a switching slot or a flexible slot, and may include at least one of the following: downlink symbols, uplink symbols, guard symbols, and flexible symbols (i.e., symbols not configured as uplink or downlink). Slot 4 is an uplink slot, and may include uplink symbols.

[0279] In a TDD configuration period, the relay device may transmit signal #3 on downlink symbols in slots 0 to 2, receive signal #1 on downlink symbols in slot 3, and transmit signal #4 on uplink symbols in slot 4.

[0280] Based on the above scheme, in a TDD configuration period, the network device may be configured to receive signal #1 within a switching slot, in which case the relay device can determine whether signal #1 needs to be received preferentially without determining whether signal #1 and / or signal #3 or signal #1 and / or signal #4 satisfy the first or second condition, thereby improving the signal processing efficiency of the relay device and reducing resource overhead.

[0281] In another possible scheme, in a TDD configuration period, the relay device transmits signal #2 within a switching slot, the slot before the switching slot is a downlink slot, and the slot after the switching slot is an uplink slot.

[0282] 5 shows a diagram of another data transmission scheme according to an embodiment of this application. As shown in FIG. 5, assume that one TDD configuration period has five slots, denoted as slot 0, slot 1, slot 2, slot 3, and slot 4, respectively. Slot 0, slot 1, and slot 2 are downlink slots, and may include downlink symbols. Slot 3 may be a switching slot or a flexible slot, and may include at least one of the following: downlink symbols, uplink symbols, guard symbols, and flexible symbols (i.e., symbols not configured as uplink or downlink). Slot 4 is an uplink slot, and may include uplink symbols.

[0283] In a TDD configuration period, the relay device may transmit signal #3 on downlink symbols in slots 0 to 2, transmit signal #2 on uplink symbols in slot 3, and transmit signal #4 on uplink symbols in slot 4.

[0284] Based on the above scheme, in a TDD configuration period, the network device may be configured to transmit signal #2 within a switching slot, in which case the relay device can determine whether signal #2 needs to be transmitted preferentially without determining whether signal #2 and / or signal #3 or signal #2 and / or signal #4 satisfy the first or second condition, thereby improving the signal processing efficiency of the relay device and reducing resource overhead.

[0285] In another possible scheme, in a TDD configuration period, the relay device receives signal #1 in a switching slot, the slot before the switching slot is an uplink slot, and the slot after the switching slot is a downlink slot.

[0286] 6 shows a diagram of another data transmission scheme according to an embodiment of this application. As shown in FIG. 6, assume that one TDD configuration period has five slots, respectively indicated as slot 0, slot 1, slot 2, slot 3, and slot 4. Slot 0, slot 1, and slot 2 are uplink slots, and may include uplink symbols. Slot 3 may be a switching slot or a flexible slot, and may include at least one of the following: downlink symbols, uplink symbols, guard symbols, and flexible symbols (i.e., symbols not configured as uplink or downlink). Slot 4 is a downlink slot, and may include downlink symbols.

[0287] In a TDD configuration period, the relay device may transmit signal #4 on uplink symbols in slots 0 to 2, receive signal #1 on downlink symbols in slot 3, and transmit signal #3 on downlink symbols in slot 4.

[0288] Based on the above scheme, in a TDD configuration period, the network device may be configured to receive signal #1 within a switching slot, in which case the relay device can determine whether signal #1 needs to be received preferentially without determining whether signal #1 and / or signal #3 or signal #1 and / or signal #4 satisfy the first or second condition, thereby improving the signal processing efficiency of the relay device and reducing resource overhead.

[0289] In another possible scheme, in a TDD configuration period, the relay device transmits signal #2 within a switching slot, the slot before the switching slot is an uplink slot, and the slot after the switching slot is a downlink slot.

[0290] 7 shows a diagram of another data transmission scheme according to an embodiment of this application. As shown in FIG. 7, assume that one TDD configuration period has five slots, respectively indicated as slot 0, slot 1, slot 2, slot 3, and slot 4. Slot 0, slot 1, and slot 2 are uplink slots, and may include uplink symbols. Slot 3 may be a switching slot or a flexible slot, and may include at least one of the following: downlink symbols, uplink symbols, guard symbols, and flexible symbols (i.e., symbols not configured as uplink or downlink). Slot 4 is a downlink slot, and may include downlink symbols.

[0291] In a TDD configuration period, the relay device may transmit signal #4 on uplink symbols in slots 0 to 2, transmit signal #2 on uplink symbols in slot 3, and transmit signal #3 on downlink symbols in slot 4.

[0292] Based on the above scheme, in a TDD configuration period, the network device may be configured to transmit signal #2 within a switching slot, in which case the relay device can determine whether signal #2 needs to be transmitted preferentially without determining whether signal #2 and / or signal #3 or signal #2 and / or signal #4 satisfy the first or second condition, thereby improving the signal processing efficiency of the relay device and reducing resource overhead.

[0293] Scheme #2: In a TDD configuration period, the relay device may transmit a first signal in the start slot.

[0294] In a possible scheme, in a TDD configuration period, when signal #3 is switched to signal #4, the relay device receives signal #1 in the starting slot.

[0295] 8 shows a diagram of another data transmission scheme according to an embodiment of this application. As shown in FIG. 8, assume that one TDD configuration period has five slots, respectively indicated as slot 0, slot 1, slot 2, slot 3, and slot 4. Slot 0, slot 1, and slot 2 are downlink slots, and may include downlink symbols. Slot 3 may be a switching slot or a flexible slot, and may include at least one of the following: downlink symbols, uplink symbols, guard symbols, and flexible symbols (i.e., symbols not configured as uplink or downlink). Slot 4 is an uplink slot, and may include uplink symbols.

[0296] In a TDD configuration period, the relay device may receive signal #1 on the downlink symbol in slot 0, transmit signal #3 on the downlink symbol in slot 1 and slot 2, and transmit signal #3 on the downlink symbol in slot 3, or may transmit signal #4 on the uplink symbol in slot 3 and transmit signal #4 on the uplink symbol in slot 4.

[0297] It should be understood that in a TDD configuration period, the start slot is the first slot for signal transmission. For example, Figure 8 shows a diagram of switching signal #3 to signal #4. In this case, the start slot is slot 0.

[0298] Based on the above scheme, when signal #3 is switched to signal #4 in a TDD configuration period, the network device may be configured to receive signal #1 within the start slot. According to this scheme, within the start slot, the relay device can determine whether signal #1 needs to be received preferentially without determining whether signal #1 and / or signal #3 meet the first or second condition, thereby improving the signal processing efficiency of the relay device, reducing the decoding delay, and reducing the impact of switching between signal #1 and signal #3 on signal #4.

[0299] In yet another possible scheme, in a TDD configuration period, when signal #4 is switched to signal #3, the relay device transmits signal #2 in the starting slot.

[0300] 9 shows a diagram of another data transmission scheme according to an embodiment of this application. As shown in FIG. 9, assume that one TDD configuration period has five slots, denoted as slot 0, slot 1, slot 2, slot 3, and slot 4, respectively. Slot 0, slot 1, and slot 2 are uplink slots, and may include uplink symbols. Slot 3 may be a switching slot or a flexible slot, and may include at least one of the following: downlink symbols, uplink symbols, guard symbols, and flexible symbols (i.e., symbols not configured as uplink or downlink). Slot 4 is a downlink slot, and may include downlink symbols.

[0301] In a TDD configuration period, the relay device may transmit signal #2 on the uplink symbol in slot 0, transmit signal #4 on the uplink symbol in slot 1 and slot 2, and transmit signal #3 on the downlink symbol in slot 3, or may transmit signal #4 on the uplink symbol in slot 3 and transmit signal #3 on the downlink symbol in slot 4.

[0302] It should be understood that in a TDD configuration period, the start slot is the first slot for signal transmission. For example, Figure 9 shows a diagram of switching signal #4 to signal #3. In this case, the start slot is slot 0.

[0303] Based on the above scheme, when signal #4 is switched to signal #3 in a TDD configuration period, the network device may be configured to transmit signal #2 within the start slot. According to this scheme, within the start slot, the relay device can determine whether signal #2 needs to be transmitted preferentially without determining whether signal #2 and / or signal #4 meet the first or second condition, thereby improving the signal processing efficiency of the relay device, reducing the decoding delay, and reducing the impact of switching between signal #2 and signal #4 on signal #3.

[0304] Scheme #3: In a first period T, the relay device may transmit a first signal within a time window.

[0305] The first period T is a period for transmitting a first signal, the first period T corresponds to one or more downlink slots or uplink slots, one time window corresponds to one or more downlink slots or uplink slots, and the first period T is equal to or greater than the width W of the time window in the period.

[0306] Optionally, the network device sends configuration information to the relay device, where the configuration information further includes a first period T, a start time t0 of a first time window, and a width W of the time window, wherein the width W of the time window is equal to a length of one or more slots.

[0307] It should be understood that when the time window is the first time window, the start time of the first time window is t0, or when the time window is the Nth time window, the start time of the Nth time window is t0+(N-1)T. The relay device may transmit the first signal within one time window, or may transmit the first signal within multiple time windows, which is not limited in this embodiment of the application.

[0308] It should be further understood that in different periods, the width W of the time window may be the same or different, which is not limited in this embodiment of this application.

[0309] In one possible scheme, in a first period T, the relay device receives signal #1 within a time window corresponding to one or more downlink slots.

[0310] 10 shows a diagram of another data transmission scheme according to an embodiment of this application. As shown in FIG. 10, it is assumed that the first time window corresponds to three downlink slots, the width W of the first time window is equal to the length of three downlink slots, the start time of the first time window is t0, and the start time of the second time window is t0+T.

[0311] For example, the relay device may receive signal #1 in the first time window, or may receive signal #1 in the second time window, or may receive signal #1 in both the first and second time windows, which is not limited in this embodiment of the application.

[0312] Optionally, the first period T may be determined based on the TDD configuration period. For example, the first period T may be 2.times.2 of the TDD configuration period. n It may be a multiple of n, where n is a positive integer.

[0313] Optionally, the first period T may be determined based on an index corresponding to the subcarrier spacing. For example, when the index corresponding to the subcarrier spacing is 1, the first period T corresponds to one downlink slot. In another example, when the index corresponding to the subcarrier spacing is 2, the first period T corresponds to two downlink slots.

[0314] Optionally, the width W of the time window in different periods may be the same, for example, the width W of the time window in different periods is all equal to the length of one downlink slot, which can reduce resource overhead.

[0315] Optionally, the start time t0 of the time window may be at a fixed position in the TDD configuration period. For example, as shown in Figure 8, the start time t0 of the time window may correspond to the start slot (i.e., slot 0). This scheme allows the relay device to receive signal #1 at a fixed position in a fixed period, thereby improving the signal processing efficiency of the relay device.

[0316] Optionally, there may be multiple different time windows in the first period T. The multiple different time windows correspond to one or more downlink slots. The relay device may receive different types of signals #1 in the multiple different time windows. For example, there may be three time windows in the first period T, and the relay device may receive a public signal (e.g., SSB or system information), a data signal (e.g., PDSCH), and a control signal (e.g., PDCCH, CSI-RS or TRS).

[0317] Based on the above scheme, in the first period T, the relay device receives signal #1 within a time window corresponding to one or more downlink slots. According to this scheme, within the time window, the relay device can determine whether signal #1 needs to be received preferentially without determining whether signal #1 and / or signal #3 satisfy the first condition or the second condition, thereby improving the signal processing efficiency of the relay device.

[0318] In another possible scheme, in the first period, the relay device transmits signal #2 within a time window corresponding to one or more uplink slots.

[0319] 11 shows a diagram of another data transmission method according to an embodiment of this application. As shown in FIG. 11, it is assumed that the first time window corresponds to three uplink slots, the width W of the first time window is equal to the length of three uplink slots, the start time of the first time window is t0, and the start time of the second time window is t0+T.

[0320] For example, the relay device may transmit signal #2 in the first time window, or may transmit signal #2 in the second time window, or may transmit signal #2 in both the first time window and the second time window, which is not limited in this embodiment of the present application.

[0321] Optionally, the first period T may be determined based on the TDD configuration period. For example, the first period T may be 2.times.2 of the TDD configuration period. n It may be a multiple of n, where n is a positive integer.

[0322] Optionally, the first period T may be determined based on an index corresponding to the subcarrier spacing. For example, when the index corresponding to the subcarrier spacing is 1, the first period T corresponds to one downlink slot. In another example, when the index corresponding to the subcarrier spacing is 2, the first period T corresponds to two downlink slots.

[0323] Optionally, the width W of the time window in different periods may be the same, for example, the width W of the time window in different periods is all equal to the length of one uplink slot, which can reduce resource overhead.

[0324] Optionally, the start time t0 of the time window may be at a fixed position in the TDD configuration period. For example, as shown in Figure 9, the start time t0 of the time window may correspond to the start slot (i.e., slot 0). This scheme allows the relay device to transmit signal #2 at a fixed position in a fixed period, thereby improving the signal processing efficiency of the relay device.

[0325] Optionally, there may be multiple different time windows in the first period T. The multiple different time windows correspond to one or more uplink slots. The relay device may transmit different types of signals #2 in the multiple different time windows. For example, there may be three time windows in the first period T, and the relay device may transmit a public signal (e.g., PRACH), a data signal (e.g., PUSCH), and a control signal (e.g., SRS or PUCCH) in the three time windows, respectively.

[0326] Based on the above scheme, in the first period T, the relay device transmits signal #2 within a time window corresponding to one or more uplink slots. According to this scheme, within the time window, the relay device can determine whether signal #2 needs to be transmitted preferentially without determining whether signal #2 and / or signal #4 satisfy the first or second condition, thereby improving the signal processing efficiency of the relay device.

[0327] Based on the above technical solutions, a network device may be configured to transmit a first signal at a specific time. Correspondingly, the relay device may determine whether the first signal needs to be preferentially transmitted at the specific time. In this case, the relay device can determine the signal to be transmitted at the specific time without determining whether the first signal and / or the second signal meet the first condition or the second condition, thereby improving the signal processing efficiency of the relay device.

[0328] Optionally, when the function of signal #1 relates to one or more of beam management, power control, connection and disconnection control, timing information, and configuration information of the second signal, the relay device may determine whether signal #1 needs to be received preferentially at a particular time to ensure that the relay device obtains the correct function configuration and improve the signal processing efficiency of the relay device.

[0329] Optionally, when the function of signal #2 is related to one or more of feedback measurement reporting, scheduling request, and time synchronization, the relay device may determine whether signal #2 needs to be transmitted preferentially at a particular time to ensure that the relay device obtains the correct function configuration and improve the signal processing efficiency of the relay device.

[0330] Optionally, the relay device may transmit a second signal at a specific time. For related explanations, please refer to the explanations in Method #1, Method #2 and Method #3. The details will not be described again here.

[0331] Optionally, the first period T during which the relay device transmits the first signal may be determined based on the period for transmitting the second signal. For example, the first period T during which the relay device transmits the first signal may be twice the period for transmitting the second signal. k It may be a factor of 1, where k is a positive integer.

[0332] Optionally, the time window in which the relay device transmits the first signal may be determined based on the time window for transmitting the second signal. For example, the start time t0 of the first time window of the first signal may be located D slots before the start time of the first time window of the second signal, and the D slots may be determined based on the decoding delay and the command valid delay.

[0333] Optionally, when the network device is configured to transmit a plurality of first signals within a time period of interest, and the types of the plurality of first signals may be different, the relay device may determine priorities of the plurality of first signals based on the types of the plurality of first signals to determine signals to be transmitted within the time period of interest. For example, when the types of the plurality of first signals are public signals, control signals, and data signals, respectively, the relay device may determine that the priorities of the plurality of first signals are public signals, control signals, and data signals in descending order.

[0334] Optionally, when the network device is configured to transmit a plurality of second signals within the target period, and the types of the plurality of second signals may be different, the relay device may determine priorities of the plurality of second signals based on the types of the plurality of second signals to determine signals to be transmitted within the target period. For example, when the types of the plurality of second signals are public signals, control signals, and data signals, respectively, the relay device may determine that the priorities of the plurality of second signals are public signals, control signals, and data signals in descending order.

[0335] Optionally, when the network device is configured to transmit the first signal and the second signal within the target time period, the relay device does not transmit the first signal and does not transmit the second signal. According to this scheme, when the network device is configured to transmit the first signal and the second signal within the target time period, the relay device may consider this configuration to be incorrect. In this case, the relay device does not transmit the first signal and does not transmit the second signal, thereby reducing power consumption.

[0336] It should be understood that the time unit (e.g., the number of slots) for transmitting the first signal or the second signal by the relay device may be determined based on the configuration information of the network device, or may be determined based on the subcarrier spacing. The time unit for transmitting the first signal by the relay device may be the same as or different from the time unit for transmitting the second signal. This is not limited in this embodiment of the present application.

[0337] According to the above description, the function of signal #1 may include at least one of the following: beam management, power control, connection and disconnection control, timing information, and configuration information of the second signal. Beam management may be beam switching, i.e., switching the beam. Beam management may be configuration of a forwarding beam or configuration of a receiving beam. For example, the relay device receives a beam of signal #1 (also called a backhaul-side beam) from a network device. In another example, the relay device transmits a beam of signal #2 (also called a backhaul-side beam) to a network device. In another example, the relay device transmits a beam of signal #3 (also called an access-side beam) to a terminal device. In another example, the relay device receives a beam of signal #4 (also called an access-side beam) from a terminal device. Power control may be power adjustment (or whether to enable multiple amplification or amplify and forward), i.e., adjusting power. Connection and disconnection control may include one of enabling transmission of the second signal and disabling transmission of the second signal. Timing information may be timing adjustment, i.e., adjusting timing. The configuration information of the second signal may be an adjustment regarding the transmission direction of the second signal, in other words, an adjustment of the signal transmission direction.

[0338] The relay device may receive signal #1 from the network device. When the functions of signal #1 conflict with each other, the relay device may fail to perform the correct operation. For example, when connection and disconnection control conflicts with other functions (e.g., beam management or power control), the relay device cannot determine whether connection and disconnection control should be performed preferentially.

[0339] In view of the above technical problems, this application further provides a method for configuring the priority of connection and disconnection control and other functions by a network device, according to which when connection and disconnection control conflicts with other functions, the intermediate device can determine the operation that needs to be performed preferentially.

[0340] There may be several possible schemes for the priority of connection and disconnection control and other functions:

[0341] In a possible manner, the relay device disables transmission of the second signal when, during the time period of interest, the relay device is configured as at least one of the following: (1) the relay device is configured to disable transmission of the second signal and enable transmission of the second signal; (2) the relay device is configured to disable transmission of the second signal and adjust power; (3) the relay device is configured to disable transmission of the second signal and switch the beam; (4) the relay device is configured to disable and adjust the timing of transmission of the second signal; (5) the relay device is configured to disable transmission of the second signal and adjust the signal transmission direction; and (6) The relay device is not configured to switch beams and / or adjust power.

[0342] In another possible manner, the relay device does not disable transmission of the second signal when, within the time period of interest, the relay device is configured as at least one of the following: (1) the relay device is configured to disable transmission of the second signal and enable transmission of the second signal; (2) the relay device is configured to disable transmission of the second signal and adjust power; (3) the relay device is configured to disable transmission of the second signal and switch the beam; (4) the relay device is configured to disable and adjust the timing of transmission of the second signal; and (5) The relay device is configured to disable transmission of the second signal and adjust the signal transmission direction.

[0343] Optionally, within the time period of interest, the relay device is configured to disable transmission of the second signal and adjust the power, and when the adjusted power is associated with an accumulated amount, the adjusted power may be accumulated.

[0344] Optionally, within the time period of interest, the relay device is configured to disable transmission of the second signal and adjust the timing, and when the adjusted timing relates to an accumulation amount, the adjusted timing may be accumulated.

[0345] Based on the above technical solutions, when the connection and disconnection control conflicts with other functions, the relay device can determine the operation that needs to be performed preferentially based on the priorities of the connection and disconnection control and other functions, so that the relay device has a better response mechanism and further improves network performance.

[0346] It may be understood that the examples in the embodiments of this application are intended merely to help those skilled in the art understand the embodiments of this application, and are not intended to limit the embodiments of this application to the specific scenarios shown in the examples. Obviously, those skilled in the art can make various equivalent modifications or changes based on the examples provided in the embodiments of this application, and such modifications or changes also fall within the scope of the embodiments of this application. For example, "the second signal is a signal transmitted with the assistance of a relay device" may be replaced with "the second signal is a signal transmitted between a network device and a terminal device, and the second signal is forwarded by a relay device."

[0347] It may be further understood that some optional features in the embodiments of this application may be independent of other features in some scenarios, or may be combined with other features in some scenarios, without limitation.

[0348] It may be further understood that the solutions in the embodiments of this application may be combined appropriately for use, or the descriptions or terminology in the embodiments may be mutually referenced or explained in the embodiments, without limitation.

[0349] It can be further understood that the sequence numbers of various numbers in the embodiments of this application do not imply an execution order, but are merely for distinction to facilitate explanation, and therefore should not constitute any limitation on the realization process of the embodiments of this application.

[0350] In this application, it should be understood that "at least one" means one or more, and "plurality" means two or more. The term "and / or" is used to describe and explain an association relationship between related objects, and indicates that three relationships may exist. For example, "A and / or B" indicates three cases: only A is present, only B is present, and both A and B are present, where A and B may be singular or plural. The character " / " usually indicates an "or" relationship between related objects. "At least one of the following items" or similar expressions refers to any combination of these items, including any combination of a singular item or multiple items. For example, "at least one of a, b, or c" may refer to a, b, c, a and b, a and c, b and c, or a, b, and c, and a, b, and c may be singular or plural.

[0351] It can be further understood that the names of some messages, such as the first signal and the second signal, are involved in the embodiments of this application, and it should be understood that these names do not limit the protection scope of the embodiments of this application.

[0352] It may be further understood that in the above method embodiments, the methods and operations implemented by a device (e.g., an intermediate device) may alternatively be implemented by a component (e.g., a chip or circuit) of the device.

[0353] Corresponding to the methods provided in the above method embodiments, the embodiments of this application further provide corresponding apparatuses. The apparatuses include corresponding modules configured to perform the above method embodiments. The modules may be software, hardware, or a combination of software and hardware. It can be understood that the technical features described in the method embodiments are also applicable to the following apparatus embodiments.

[0354] The data transmission method provided in the embodiment of this application has been described in detail above with reference to Figures 3 to 11. Hereinafter, the communication device provided in the embodiment of this application will be described in detail with reference to Figures 12 to 14.

[0355] 12 is a block diagram of a communication device according to an embodiment of the present application. The device 1200 includes a transceiver unit 1210, which may be configured to implement corresponding communication functions. The transceiver unit 1210 may also be referred to as a communication interface or a communication unit.

[0356] Optionally, apparatus 1200 may further include a processing unit 1220. The processing unit 1220 may be configured to implement corresponding processing functions, for example, to determine whether the first signal and / or the second signal satisfy a first condition.

[0357] Optionally, the apparatus 1200 further includes a storage unit. The storage unit may be configured to store instructions and / or data. The processing unit 1220 may read the instructions and / or data in the storage unit, so that the apparatus implements the operations of the relay device in the above method embodiments.

[0358] The apparatus 1200 may be configured to perform the actions performed by the relay device in the above method embodiments. In this case, the apparatus 1200 may be the relay device or a component of the relay device. The transceiver unit 1210 is configured to perform the reception and transmission-related operations of the relay device in the above method embodiments. The processing unit 1220 is configured to perform the processing-related operations of the relay device in the above method embodiments.

[0359] In one design, apparatus 1200 is configured to perform the actions performed by the relay device in the method embodiments described above.

[0360] In a possible implementation, the transceiver unit 1210 is configured to receive configuration information from a network device, the configuration information indicating transmission of a first signal and a second signal within a time period of interest, the first signal being a signal for communication between the device and the network device, and the second signal being a signal transmitted with the assistance of the device. The processing unit 1220 is configured to determine that the first signal and / or the second signal satisfy a first condition, and the transceiver unit 1210 is further configured to transmit the first signal within the time period of interest. The processing unit 1220 is further configured to determine that the first signal and / or the second signal do not satisfy the first condition, and the transceiver unit 1210 is further configured to transmit the second signal within the time period of interest.

[0361] Optionally, the first condition is that the priority of the first signal is greater than or equal to the priority of the second signal, and the priorities of the first signal and the second signal are classified based on signal type, and there is at least one of the following signal types: public signal, data signal, and control signal.

[0362] Optionally, the first signal and / or the second signal satisfying the first condition includes the first signal being a public signal, the first signal being a non-public signal and the second signal being a non-public signal, the first signal being a control signal and the second signal being a semi-persistently scheduled signal, or the first signal being a semi-persistently scheduled signal and the second signal being a semi-persistently scheduled signal.

[0363] Optionally, the first signal and / or the second signal not satisfying the first condition includes the second signal being a public signal, the second signal being a control signal and the first signal being a non-public signal, the second signal being a control signal and the first signal being a semi-persistently scheduled signal, or the second signal being a semi-persistently scheduled signal and the first signal being a semi-persistently scheduled signal.

[0364] Optionally, the first signal and / or the second signal satisfying the first condition includes the first signal having at least one of the following functions: beam management, power control, connection and disconnection control, timing information, configuration information of the second signal, feedback measurement report, scheduling request, and time synchronization.

[0365] Optionally, before determining whether the first signal and / or the second signal satisfy the first condition, the processing unit 1220 is configured to determine that the first signal and the second signal satisfy a second condition, and the transceiver unit 1210 is configured to transmit the first signal and the second signal within the time period of interest.

[0366] Optionally, the second condition is that the difference between the power of the first signal and the power of the second signal is less than or equal to a first threshold, and / or the second condition is that the difference between the modulation order of the first signal and the modulation order of the second signal is less than or equal to a second threshold.

[0367] The apparatus 1200 may implement steps or procedures corresponding to the steps or procedures performed by the relay device in the method embodiments of the present application, and may include a unit configured to execute the method performed by the relay device in any one of the embodiments shown in Figures 3 to 11.

[0368] It should be understood that the specific processes by which the units perform the above corresponding steps have been described in detail in the above method embodiments, and for the sake of brevity, the details will not be described here.

[0369] It should be understood that the apparatus 1200 herein is embodied in the form of a functional unit. The term "unit" herein may refer to an application-specific integrated circuit (ASIC), an electronic circuit, a processor (e.g., a shared processor, a dedicated processor, or a group processor) configured to execute one or more software or firmware programs, storage, merge logic, and / or other suitable components supporting the described functionality. Those skilled in the art will understand that, in an optional example, the apparatus 1200 may specifically be the relay device in the above embodiments or may be configured to perform procedures and / or steps corresponding to the relay device in the above method embodiments. To avoid repetition, the details will not be described again here.

[0370] The apparatus 1200 in the above solution has functions for implementing the steps corresponding to those performed by the relay device in the above method. The functions may be implemented by hardware, or by hardware executing corresponding software. The hardware or software may include one or more modules corresponding to the above functions. For example, a transceiver unit may be replaced by a transceiver (e.g., a transmitting unit in the transceiver unit may be replaced by a transmitter, and a receiving unit in the transceiver unit may be replaced by a receiver), or another unit, such as a processing unit, may be replaced by a processor to separately perform transmitting and receiving operations and related processing operations in the method embodiments.

[0371] Furthermore, the transceiver unit 1210 may alternatively be a transceiver circuit (eg, may include a receiving circuit and a transmitting circuit), and the processing unit may alternatively be a processing circuit.

[0372] It should be noted that the apparatus in Fig. 12 may be the device in the above embodiments, or may be a chip or a chip system, such as a system on chip (SoC). The transceiver unit may be an input / output circuit or a communication interface. The processing unit may be a processor, a microprocessor, or an integrated circuit integrated on a chip. This is not limited here.

[0373] 13, an embodiment of the present application provides another communication device 1300. The device 1300 includes a processor 1310. The processor 1310 is coupled to a storage 1320, which is configured to store computer programs or instructions and / or data, and the processor 1310 is configured to execute the computer programs or instructions stored in the storage 1320 or read the data stored in the storage 1320 to perform the method in the above method embodiments.

[0374] Optionally, there are one or more processors 1310 .

[0375] Optionally, there are one or more storages 1320 .

[0376] Optionally, storage 1320 and processor 1310 are integrated or located separately.

[0377] 13, the apparatus 1300 further includes a transceiver 1330. The transceiver 1330 is configured to receive and / or transmit signals. For example, the processor 1310 is configured to control the transceiver 1330 to receive and / or transmit signals.

[0378] In one solution, the apparatus 1300 is configured to implement the operations performed by the relay device in the above method embodiments.

[0379] For example, the processor 1310 is configured to execute computer programs or instructions stored in the storage 1320 to realize relevant operations of the relay device in the above-described method embodiments, such as the method performed by the relay device in any one of the embodiments shown in FIGS. 3 to 11.

[0380] It should be understood that the processor referred to in the embodiments of this application may be a central processing unit (CPU), or alternatively, may be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field programmable gate arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor, or the processor may be any conventional processor, etc.

[0381] It should be further understood that the storage referred to in the embodiments of this application may be volatile and / or non-volatile memory. Non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory may be random access memory (RAM). For example, RAM may be used as an external cache. By way of example and not limitation, RAM includes several forms such as static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchlink dynamic random access memory (synchlink DRAM, SLDRAM), and direct Rambus random access memory (direct Rambus RAM, DR RAM).

[0382] It should be noted that when the processor is a general-purpose processor, a DSP, an ASIC, an FPGA or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, the storage (storage module) may be integrated into the processor.

[0383] It should further be noted that storage as described herein is intended to include, but is not limited to, these and any other suitable types of storage.

[0384] 14, an embodiment of the present application provides a chip system 1400. The chip system 1400 (which may also be called a processing system) includes a logic circuit 1410 and an input / output interface 1420.

[0385] The logic circuit 1410 may be a processing circuit within the chip system 1400. The logic circuit 1410 may be coupled and connected to a storage unit and call instructions in the storage unit, so that the chip system 1400 can implement the methods and functions in the embodiments of this application. The input / output interface 1420 may be an input / output circuit within the chip system 1400, which outputs information processed by the chip system 1400 or inputs data or signaling information to be processed into the chip system 1400 for processing.

[0386] In one solution, the chip system 1400 is configured to implement the operations performed by the relay device in the above method embodiments.

[0387] For example, logic circuit 1410 is configured to implement the processing-related operations performed by the relay device in the above-described method embodiments, such as the processing-related operations performed by the relay device in any one of the embodiments shown in Figures 3 to 11. Input / output interface 1420 is configured to implement the transmission and / or reception-related operations performed by the relay device in the above-described method embodiments, such as the transmission and / or reception-related operations performed by the relay device in any one of the embodiments shown in Figures 3 to 11.

[0388] An embodiment of the present application further provides a computer-readable storage medium, which stores computer instructions used to implement the method performed by the relay device in the above method embodiment.

[0389] For example, when the computer program is executed by a computer, the computer can realize the method performed by the relay device in the above method embodiments.

[0390] An embodiment of the present application further provides a computer program product including instructions, which, when executed by a computer, result in the method performed by the relay device in the above method embodiment.

[0391] For the relevant content description and beneficial effects of any one of the devices provided above, please refer to the corresponding method embodiments provided above, and the details will not be described again here.

[0392] In some embodiments provided in this application, it should be understood that the disclosed devices and methods may be implemented in other ways. For example, the described device embodiments are merely examples. For example, the division into units is merely a logical division of function, and other divisions may be used in actual implementations. For example, multiple units or components may be combined or integrated into other systems, or some features may be omitted or not implemented. Furthermore, the shown or discussed mutual couplings or direct couplings or communication connections may be realized through some interfaces. Indirect couplings or communication connections between devices or units may be realized in electronic, mechanical, or other forms.

[0393] All or part of the above embodiments may be realized using software, hardware, firmware, or any combination thereof. When software is used to realize the embodiments, all or part of the embodiments may be realized in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded into a computer and executed, the procedures or functions according to the embodiments of this application are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. For example, the computer may be a personal computer, a server, a network device, etc. The computer instructions may be stored in a computer-readable storage medium or transmitted from a computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, optical fiber, or digital subscriber line (DSL)) or wireless (e.g., infrared, radio, microwave, etc.) methods. The computer-readable storage medium may be any available medium accessible by a computer, or a data storage device integrating one or more available media, such as a server or a data center. The available medium may be a magnetic medium (e.g., a floppy disk, a hard disk drive, or a magnetic tape), an optical medium (e.g., a DVD), a semiconductor medium (e.g., a solid-state drive (SSD)), etc. For example, the available medium may include, but is not limited to, any medium capable of storing program code, such as a USB flash drive, a removable hard disk drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0394] The above description is merely a specific implementation of this application and is not intended to limit the scope of protection of this application. Any variations or replacements that can be easily conceived by those skilled in the art within the technical scope disclosed in this application shall fall within the scope of protection of this application. Therefore, the scope of protection of this application shall be subject to the scope of protection of the claims.

Claims

1. 1. A data transmission method, comprising: receiving, by the relay device, configuration information from a network device, the configuration information indicating transmission of a first signal and a second signal within a time period of interest, the first signal being a signal for communication between the relay device and the network device, and the second signal being a signal transmitted with the assistance of the relay device; transmitting, by the relay device, the first signal and the second signal within the time period of interest when the first signal and the second signal satisfy a second condition; transmitting (S320) the first signal by the relay device within the target time period when at least one of the first signal and the second signal satisfies a first condition; or When at least one of the first signal and the second signal does not satisfy a first condition, transmitting the second signal within the target period by the relay device (S330); A method comprising:

2. the first condition is that the priority of the first signal is equal to or greater than the priority of the second signal; 2. The method of claim 1, wherein the priorities of the first signal and the second signal are classified based on signal type, and there is at least one of the following signal types: public signal, data signal, and control signal.

3. The at least one of the first signal and the second signal satisfying a first condition is the first signal is a public signal; the first signal is a non-public signal and the second signal is a non-public signal; the first signal is a control signal and the second signal is a semi-persistently scheduled signal; or the first signal is a semi-persistently scheduled signal and the second signal is a semi-persistently scheduled signal; 3. The method of claim 1 or 2, comprising:

4. The fact that at least one of the first signal and the second signal does not satisfy a first condition is the second signal being a public signal; the second signal is a control signal and the first signal is a non-public signal; the second signal is a control signal and the first signal is a semi-persistently scheduled signal; or the second signal is a semi-persistently scheduled signal and the first signal is a semi-persistently scheduled signal; 3. The method of claim 1 or 2, comprising:

5. The at least one of the first signal and the second signal satisfying a first condition is 2. The method of claim 1, wherein the first signal comprises at least one of the following functions: beam management, power control, connection and disconnection control, timing information, configuration information for the second signal, feedback measurement reports, scheduling requests, and time synchronization.

6. 2. The method of claim 1, wherein the second condition is at least one of: a difference between a power of the first signal and a power of the second signal being less than or equal to a first threshold; and a difference between a modulation order of the first signal and a modulation order of the second signal being less than or equal to a second threshold.

7. A data transmission device (1200) including a transceiver unit and a processing unit, the transceiver unit (1210) is configured to receive configuration information from a network device, the configuration information indicating transmission of a first signal and a second signal within a time period of interest, the first signal being a signal for communication between the device and the network device, and the second signal being a signal transmitted with the assistance of the device; the processing unit (1220) is configured to determine that the first signal and the second signal satisfy a second condition, and the transceiver unit is further configured to transmit the first signal and the second signal within the time period of interest; the processing unit (1220) is further configured to determine that at least one of the first signal and the second signal satisfies a first condition, and the transceiver unit is further configured to transmit the first signal within the time period of interest; or the processing unit (1220) is further configured to determine that at least one of the first signal and the second signal does not satisfy a first condition, and the transceiver unit is further configured to transmit the second signal within the time period of interest.

8. the first condition is that the priority of the first signal is equal to or greater than the priority of the second signal; 8. The device of claim 7, wherein the priorities of the first signal and the second signal are classified based on signal type, and there is at least one of the following signal types: public signal, data signal, and control signal.

9. The at least one of the first signal and the second signal satisfying a first condition is the first signal is a public signal; the first signal is a non-public signal and the second signal is a non-public signal; the first signal is a control signal and the second signal is a semi-persistently scheduled signal; or the first signal is a semi-persistently scheduled signal and the second signal is a semi-persistently scheduled signal; 9. The apparatus of claim 7 or 8, comprising:

10. The fact that at least one of the first signal and the second signal does not satisfy a first condition is the second signal being a public signal; the second signal is a control signal and the first signal is a non-public signal; the second signal is a control signal and the first signal is a semi-persistently scheduled signal; or the second signal is a semi-persistently scheduled signal and the first signal is a semi-persistently scheduled signal; 9. The apparatus of claim 7 or 8, comprising:

11. The at least one of the first signal and the second signal satisfying a first condition is 8. The apparatus of claim 7, wherein the first signal comprises at least one of the following functions: beam management, power control, connection and disconnection control, timing information, configuration information for the second signal, feedback measurement reports, scheduling requests, and time synchronization.

12. 8. The apparatus of claim 7, wherein the second condition is at least one of: a difference between a power of the first signal and a power of the second signal being less than or equal to a first threshold; and a difference between a modulation order of the first signal and a modulation order of the second signal being less than or equal to a second threshold.

13. A computer program comprising: The computer program is receiving, by an intermediate device, configuration information from a network device, the configuration information indicating transmission of a first signal and a second signal within a target time period, the first signal being a signal for communication between the intermediate device and the network device, and the second signal being a signal transmitted with the assistance of the intermediate device; transmitting, by the relay device, the first signal and the second signal within the time period of interest when the first signal and the second signal satisfy a second condition; transmitting, by the relay device, the first signal within the time period of interest when at least one of the first signal and the second signal satisfies a first condition; or transmitting, by the relay device, the second signal within the time period of interest when at least one of the first signal and the second signal does not satisfy a first condition; A computer program comprising instructions for causing a computer to perform operations including:

14. the first condition is that the priority of the first signal is equal to or greater than the priority of the second signal; 14. The computer program product of claim 13, wherein the priorities of the first signal and the second signal are classified based on signal type, and there is at least one of the following signal types: public signal, data signal, and control signal.

15. The at least one of the first signal and the second signal satisfying a first condition is the first signal is a public signal; the first signal is a non-public signal and the second signal is a non-public signal; the first signal is a control signal and the second signal is a semi-persistently scheduled signal; or the first signal is a semi-persistently scheduled signal and the second signal is a semi-persistently scheduled signal; 15. A computer program according to claim 13 or 14, comprising:

16. The fact that at least one of the first signal and the second signal does not satisfy a first condition is the second signal being a public signal; the second signal is a control signal and the first signal is a non-public signal; the second signal is a control signal and the first signal is a semi-persistently scheduled signal; or the second signal is a semi-persistently scheduled signal and the first signal is a semi-persistently scheduled signal; 15. A computer program according to claim 13 or 14, comprising:

17. The at least one of the first signal and the second signal satisfying a first condition is 14. The computer program product of claim 13, wherein the first signal comprises at least one of the following functions: beam management, power control, connection and disconnection control, timing information, configuration information for the second signal, feedback measurement reports, scheduling requests, and time synchronization.

18. 14. The computer program product of claim 13, wherein the second condition is at least one of: a difference between a power of the first signal and a power of the second signal being less than or equal to a first threshold; and a difference between a modulation order of the first signal and a modulation order of the second signal being less than or equal to a second threshold.

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