Transmission reception point determination method and related apparatus

Abstract

Embodiments of the present application disclose a transmission and reception point determination method. The method comprises: an access network device sending a plurality of measurement signals to a terminal device through a plurality of transmission and reception points (TRPs), each TRP sending a different measurement signal to the terminal, for example, a first TRP sending a first measurement signal and a second TRP sending a second measurement signal, and the access network device determining a target TRP according to a measurement signal detection result received from the terminal device. In some scenarios, such as frequency division multiplexing or carrier aggregation scenarios, the access network device can still accurately determine the target TRP.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to the field of communications, and in particular to a transmission reception point determination method and related apparatus. BACKGROUND

[0002] An access network device can combine multiple transmission reception points (TRPs) as one cell, which uses the same broadcast physical cell identifier (PCI), and the terminal device does not need to perform inter-cell handover process when moving from one TRP to another TRP. When scheduling data, in order to reasonably utilize spectrum resources, the access network device can determine which one or more TRPs the terminal device is in the coverage of, so as to send data to the terminal device by the target TRP in a targeted manner, thereby achieving the purpose of saving spectrum resources.

[0003] The access network device can perform reference signal received power (RSRP) measurement on the sounding reference signal (SRS) of the terminal uplink, determine the TRP with the maximum SRS RSRP as the target TRP, or determine multiple TRPs with larger SRS RSRP as the target TRP.

[0004] However, in some scenarios, such as in a frequency division multiplexing scenario, the access network device and the terminal device communicate using different frequency bands for uplink and downlink, and the uplink and downlink are not reciprocal, and the target TRP determined based on the uplink SRS RSRP may not be applicable to the downlink direction; in a carrier aggregation scenario, due to terminal device capability limitations, the terminal may not be able to send SRS on the secondary carrier, so the access network device cannot determine the target TRP based on the SRS RSRP. SUMMARY

[0005] The first aspect of the present application provides a TRP determination method, comprising:

[0006] The access network device transmits a plurality of measurement signals to the terminal device through a plurality of TRPs, the plurality of TRPs include two or more TRPs, the plurality of TRPs belong to the same cell, the cell uses the same broadcast PCI, such as: a first TRP and a second TRP, each TRP transmits a different measurement signal to the terminal, such as: a first measurement signal and a second measurement signal, and correspondingly, the first TRP transmits the first measurement signal and the second TRP transmits the second measurement signal. The access network device determines the target TRP according to the measurement signal detection result received from the terminal device, the target TRP belongs to one or more of the plurality of TRPs, and the target TRP can be used by the access network device and the terminal device for subsequent communication, so as to save the frequency spectrum resource under the premise of guaranteeing the communication quality. The measurement signal detection result reflects the signal strength of the measurement signal (such as the first signal and / or the second signal) when the terminal device receives the measurement signal.

[0007] The access network device can determine the target TRP according to the measurement signal detection result. In some scenarios, such as frequency division multiplexing or carrier aggregation scenarios, the access network device can still accurately determine the target TRP.

[0008] Based on the first aspect of the embodiments of the present application, in the first implementation manner of the first aspect of the embodiments of the present application, the measurement signal detection result is the identification of the measurement signal with the strongest signal strength when the terminal device receives the measurement signal. For example, when the terminal device receives the first signal and the second signal, the first signal has the strongest strength, and the measurement signal detection result is the identification information of the first signal.

[0009] Based on the first aspect of the embodiments of the present application or the first implementation manner of the first aspect, in the second implementation manner of the first aspect of the embodiments of the present application, the plurality of measurement signals can be channel state information (channel state information, CSI) and / or synchronization signal and physical broadcast channel block (synchronization signal and physical broadcast channel block, SSB).

[0010] In the embodiments of the present application, a plurality of possible implementation manners of the measurement signal are provided, which improves the flexibility and realizability of the scheme.

[0011] Based on the second implementation manner of the first aspect of the embodiments of the present application, in the third implementation manner of the first aspect of the embodiments of the present application, one of the plurality of measurement signals (such as the first measurement signal or the second measurement signal) can include two or more different CSIs.

[0012] In the embodiments of the present application, the access network device can make more sufficient use of CSI resources, indicate different measurement signals through different CSI combination manners, and save CSI resources.

[0013] The second aspect of the present application provides a TRP determination method, comprising:

[0014] The terminal device receives a plurality of measurement signals from the access network device, the plurality of measurement signals correspond to a plurality of TRPs, the plurality of TRPs belong to the same cell, the cell uses the same broadcast PCI, the plurality of TRPs include two or more TRPs, such as a first TRP and a second TRP, each TRP sends a different measurement signal to the terminal, such as a first measurement signal and a second measurement signal, and correspondingly, the first TRP sends the first measurement signal and the second TRP sends the second measurement signal. The terminal device generates a measurement signal detection result according to the received measurement signal, and the measurement signal detection result reflects the signal strength of the measurement signal (such as the first signal and / or the second signal) when the terminal device receives the measurement signal.

[0015] The access network device can determine the target TRP according to the measurement signal detection result. In some scenarios, such as frequency division multiplexing or carrier aggregation scenarios, the access network device can still accurately determine the target TRP.

[0016] Based on the second aspect of the embodiments of the present application, in the first implementation manner of the second aspect of the embodiments of the present application, the measurement signal detection result is the identification of the measurement signal with the strongest signal strength when the terminal device receives the measurement signal. For example, when the terminal device receives the first signal and the second signal, the first signal has the strongest strength, and the measurement signal detection result is the identification information of the first signal.

[0017] Based on the second aspect of the embodiments of the present application or the first implementation manner of the second aspect, in the second implementation manner of the second aspect of the embodiments of the present application, the plurality of measurement signals can be CSI and / or SSB.

[0018] In the embodiments of the present application, a plurality of possible implementation manners of the measurement signal are provided, which improves the flexibility and realizability of the scheme.

[0019] Based on the third implementation manner of the second aspect of the embodiments of the present application, in the third implementation manner of the second aspect of the embodiments of the present application, one of the plurality of measurement signals (such as the first measurement signal or the second measurement signal) can include two or more different CSIs.

[0020] In the embodiments of the present application, the terminal device can make more sufficient use of CSI resources, indicate different measurement signals according to different CSI combination manners, and save CSI resources.

[0021] The third aspect of the embodiments of the present application provides an access network device, which executes the method of the first aspect and any of the implementation manners of the first aspect.

[0022] The fourth aspect of the embodiments of the present application provides a terminal device, which executes the method of the second aspect and any of the implementation manners of the second aspect.

[0023] The fifth aspect of the embodiments of the present application provides a computer storage medium, which stores instructions, and the instructions, when executed on a computer, cause the computer to execute the method of the first aspect or the second aspect.

[0024] The sixth aspect of the embodiments of the present application provides a computer software product, which, when executed on a computer, causes the computer to execute the method of the first aspect or the second aspect. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 FIG. 1 is a network framework diagram in the embodiments of the present application;

[0026] Figure 2 FIG. 2 is a flowchart of a TRP determination method in the embodiments of the present application;

[0027] Figure 3 FIG. 3 is a CSI resource group diagram in the embodiments of the present application;

[0028] Figure 4 FIG. 4 is a structure diagram of an access network device in the embodiments of the present application;

[0029] Figure 5 FIG. 5 is a structure diagram of a terminal device in the embodiments of the present application;

[0030] Figure 6 FIG. 6 is another structure diagram of an access network device in the embodiments of the present application;

[0031] Figure 7 FIG. 7 is another structure diagram of a terminal device in the embodiments of the present application. DETAILED DESCRIPTION

[0032] The embodiments of the present application provide a TRP determination method.

[0033] The technical solutions provided by the embodiments of the present application can be applied to various communication systems, for example: a long term evolution (LTE) system, a 5th generation (5G) mobile communication system, a wireless-fidelity (WiFi) system, a future communication system, or a system integrating multiple communication systems, and the like, and the embodiments of the present application are not limited thereto. The 5G can also be referred to as a new radio (NR).

[0034] The technical solutions provided by the embodiments of the present application can be applied to various communication scenarios, for example, one or more of the following communication scenarios: enhanced mobile broadband (eMBB), ultra-reliable low-latency communication (URLLC), machine type communication (MTC), massive machine type communication (mMTC), device-to-device (D2D), vehicle to everything (V2X), vehicle to vehicle (V2V), and internet of things (IoT), and the like.

[0035] Please refer to Figure 1 , Figure 1 is an architecture diagram of a communication system to which the embodiments of the present application can be applied, which includes:

[0036] The access network device 101 and the terminal device 102.

[0037] The access network device 101 refers to a radio access network (RAN) node (or device) that accesses a terminal to a wireless network, which can also be referred to as a base station. Currently, some examples of the RAN node are: a continued evolution of the node B (gNB), a transmission reception point (TRP), an evolved node B (eNB), a radio network controller (RNC), a node B (NB), a base station controller (BSC), a base transceiver station (BTS), a home base station (for example, a home evolved node B or a home node B (HNB)), a baseband unit (BBU), or a wireless fidelity (Wifi) access point (AP), etc.

[0038] The terminal device 102, also known as a user equipment (UE), a mobile station (MS), a mobile terminal (MT), etc., refers to a device that provides voice and / or data connectivity to a user. For example, a handheld device having wireless connection capability, a vehicle-mounted device, etc. Currently, some examples of the terminal are: a mobile phone, a tablet computer, a notebook computer, a palm 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 medical surgery, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, etc.

[0039] Referring to Figure 2 The information transmission method in the embodiments of the present application includes steps 201 to 203, and the details are as follows:

[0040] 201、The access network device sends a plurality of measurement signals to the terminal device through a plurality of TRPs;

[0041] The access network device can send a plurality of measurement signals to the terminal device through a plurality of TRPs, the plurality of TRPs belong to the same cell, the cell uses the same broadcast physical cell identifier (PCI), and the plurality of TRPs are two or more TRPs, see Figure 1 The embodiments of the present application take 4 as an example (TRP0, TRP1, TRP2, and TRP3), and each TRP sends a measurement signal to the terminal device.

[0042] The measurement signal can be CSI, or other resources such as synchronization signal and physical broadcast channel block (SSB), or a combination of CSI and SSB resources, and the embodiments only take CSI as an example for description. Different TRPs send different CSI resources to the terminal device.

[0043] In order to improve the utilization rate of CSI resources, the CSI resources corresponding to different TRPs can be two or more, and the CSI resources corresponding to different TRPs are combined differently, such as Figure 3 As shown, TRP0 can correspond to CSI0 and CSI1, TRP1 can correspond to CSI3 and CSI4, TRP2 can correspond to CSI2 and CSI3, and TRP3 can correspond to CSI1 and CSI4. Assuming that there are 8 different CSI resources, if each TRP corresponds to one CSI, then a maximum of 8 different TRPs are supported, if each TRP corresponds to 2 CSI resources in a free combination, then a maximum of Combine(8, 2) = 28 combinations are supported, supporting 28 different TRPs; if corresponding to 3 CSI resources, more TRPs can be supported. It can be understood that some TRPs can correspond to two or more CSI resources, and some TRPs can correspond to one CSI resource, and the specific number is not limited here.

[0044] 202、The terminal device sends a measurement signal detection result to the access network device;

[0045] After receiving the measurement signals, the terminal device detects the signal strengths of the received measurement signals, and sends a measurement signal detection result to the access network device. The form of the measurement signal detection result is not limited, and the terminal device can send only the identifier of the measurement signal with the strongest signal strength, the identifier of the measurement signal with the strongest signal strength is the measurement signal detection result, or the terminal device can send the identifiers of the measurement signals in the order of signal strength, and the group of identifiers constitutes the measurement signal detection result, or the terminal device can send the measurement signal detection result in other manners, and the measurement signal detection result reflects the signal strengths of the measurement signals (such as CSI0, CSI1, CSI2, and / or CSI3) when the terminal device receives the measurement signals.

[0046] 203. The access network device determines the target TRP.

[0047] The access network device determines the target TRP according to the measurement signal detection result. The target TRP can include one or more TRPs, such as a TRP indicated by the measurement signal with the strongest signal strength when the terminal device receives the measurement signal, or a TRP with a signal strength satisfying a preset threshold. The access network device can communicate with the terminal device through the target TRP, so as to save spectrum resources under the premise of guaranteeing communication quality.

[0048] The information transmission method in the embodiments of the present application is described above, and the device in the embodiments of the present application is described below. Please refer to Figure 4 An embodiment of the access network device 400 in the embodiments of the present application includes:

[0049] The sending unit 401 is configured to send a plurality of measurement signals to the terminal device through a plurality of TRPs.

[0050] The receiving unit 402 is configured to receive a measurement signal detection result from the terminal device.

[0051] The determining unit 403 is configured to determine a target TRP according to the measurement signal detection result.

[0052] In the embodiment, the operations performed by each unit in the access network device 400 are similar to those described in the foregoing Figure 2 embodiment, and will not be described here.

[0053] Please refer to Figure 5 An embodiment of the terminal device 500 in the embodiments of the present application includes:

[0054] The receiving unit 501 is configured to receive a plurality of measurement signals sent by a plurality of TRPs from the access network device.

[0055] The sending unit 502 is configured to send a measurement signal detection result to the access network device.

[0056] In this embodiment, the operations performed by each unit in the terminal device 500 are the same as those in the foregoing embodiments 1-2, and thus are not described again here. Figure 2 The operations performed by the access network device in the embodiments 1-2 are similar to those described in the foregoing embodiments, and thus are not described again here.

[0057] Figure 6 FIG. 6 is a structural schematic diagram of an access network device provided by an embodiment of the present application. The access network device 600 can include one or more processors 601 and a memory 605, and the memory 605 stores one or more application programs or data.

[0058] The memory 605 can be volatile storage or persistent storage. The programs stored in the memory 605 can include one or more modules, and each module can include a series of instruction operations on the access network device 600. Further, the processor 601 can be configured to communicate with the memory 605 and execute the series of instruction operations in the memory 605 on the access network device 600.

[0059] The access network device 600 can further include one or more power supplies 602, one or more wired or wireless network interfaces 603, one or more input / output interfaces 604, and / or one or more operating systems, such as any one of Microsoft Windows, Android, Mac OS, Unix, and Linux.

[0060] The processor 601 can perform the operations of the access network device in the foregoing embodiments 1-2, and thus are not described again here.

[0061] Figure 7 FIG. 7 is a structural schematic diagram of a terminal device provided by an embodiment of the present application. The terminal device 700 can include one or more processors 701 and a memory 705, and the memory 705 stores one or more application programs or data.

[0062] The memory 705 can be volatile storage or persistent storage. The programs stored in the memory 705 can include one or more modules, and each module can include a series of instruction operations on the terminal device 700. Further, the processor 701 can be configured to communicate with the memory 705 and execute the series of instruction operations in the memory 705 on the terminal device 700.

[0063] The terminal device 700 can further include one or more power supplies 702, one or more wired or wireless network interfaces 703, one or more input / output interfaces 704, and / or one or more operating systems, such as any of Microsoft Windows, Google Android, Apple Mac OS, Unix, or Linux.

[0064] The processor 701 can perform the operations of the terminal device in the embodiments described above, which will not be repeated here. Figure 2 The processor 701 can perform the operations of the terminal device in the embodiments described above, which will not be repeated here.

[0065] The present application provides an access network device, which can be coupled with a memory for reading and executing instructions stored in the memory, so that the access network device implements the steps of the method performed by the access network device in the embodiments described above. In a possible design, the access network device is a chip or a system on chip. Figure 2 The present application provides an access network device, which can be coupled with a memory for reading and executing instructions stored in the memory, so that the access network device implements the steps of the method performed by the access network device in the embodiments described above. In a possible design, the access network device is a chip or a system on chip.

[0066] The present application provides a terminal device, which can be coupled with a memory for reading and executing instructions stored in the memory, so that the terminal device implements the steps of the method performed by the terminal device in the embodiments described above. In a possible design, the terminal device is a chip or a system on chip. Figure 2 The present application provides a terminal device, which can be coupled with a memory for reading and executing instructions stored in the memory, so that the terminal device implements the steps of the method performed by the terminal device in the embodiments described above. In a possible design, the terminal device is a chip or a system on chip.

[0067] The access network device and the terminal device can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; can be deployed on water; or can be deployed on an airplane, a balloon, or an artificial satellite in the air. The embodiments of the present application do not limit the application scenarios of the access network device and the terminal device.

[0068] The access network device and the terminal device can communicate through a licensed spectrum, can communicate through an unlicensed spectrum, or can communicate through a licensed spectrum and an unlicensed spectrum. The network device and the terminal device can communicate through a spectrum below 6 gigahertz (GHz), can communicate through a spectrum above 6 GHz, or can use a spectrum below 6 GHz and a spectrum above 6 GHz. The embodiments of the present application do not limit the spectrum resources used between the network device and the terminal device.

[0069] The chip system includes a processor configured to support the access network device to implement the functions involved in the above aspects, for example, to send or process the data and / or information involved in the above methods. In a possible design, the chip system further includes a memory configured to store necessary program instructions and data. The chip system can be composed of a chip, or include the chip and other discrete devices.

[0070] The chip system includes a processor configured to support the terminal device to implement the functions involved in the above aspects, for example, to send or process the data and / or information involved in the above methods. In a possible design, the chip system further includes a memory configured to store necessary program instructions and data. The chip system can be composed of a chip, or include the chip and other discrete devices.

[0071] In another possible design, when the chip system is a chip in the access network device or the terminal device, the chip includes a processing unit and a communication unit. The processing unit can be a processor, and the communication unit can be an input / output interface, a pin, a circuit or the like. The processing unit can execute computer-executable instructions stored in the storage unit, so that the chip in the access network device or the terminal device performs the steps of the method performed by the access network device or the terminal device in the embodiments. Figure 2 Optionally, the storage unit is a storage unit in the chip, for example, a register, a cache or the like. The storage unit can also be a storage unit outside the chip in the UE or the base station, for example, a read-only memory (ROM) or another type of static storage device that can store static information and instructions, a random access memory (RAM) or the like.

[0072] The embodiments of the present application further provide an access network device. The access network device can perform wireless communication with a server through a link. The access network device includes one or more processors, one or more memories, and one or more transceivers (each transceiver includes a transmitter Tx and a receiver Rx), which are connected through a bus. The one or more transceivers are connected with one or more antennas. The one or more memories include computer program codes. The transceiver can implement the function of the receiving unit or the sending unit of the access network device, and the transceiver can also be a separate receiver and a separate transmitter.

[0073] The terminal device can perform wireless communication with a server through a link. The terminal device includes one or more processors, one or more memories, and one or more transceivers (each transceiver includes a transmitter Tx and a receiver Rx), which are connected through a bus. The one or more transceivers are connected with one or more antennas. The one or more memories include computer program codes. The transceiver can implement the function of a terminal device receiving unit or a terminal device sending unit, and the transceiver can also be a separate receiver and transmitter.

[0074] The embodiments of the present application also provide a processor, which is used for being coupled with a memory, and is used for executing the method and the function related to the terminal device in any of the above-mentioned embodiments.

[0075] The embodiments of the present application also provide a processor, which is used for being coupled with a memory, and is used for executing the method and the function related to the terminal device in any of the above-mentioned embodiments.

[0076] The embodiments of the present application also provide a computer readable storage medium, which stores a computer program. The computer program is executed by a computer to implement the method related to the access network device or the terminal device in any of the above-mentioned method embodiments. Correspondingly, the computer can be the access network device or the terminal device.

[0077] It should be understood that the processor mentioned in the access network device, the terminal device, the chip system, etc. in the above embodiments of the present application, or the processor provided by the above-mentioned embodiments of the present application, can be a central processing unit (CPU), and can also 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 gates or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor.

[0078] It should also be understood that the number of processors in the access network device, the terminal device, the chip system, etc. in the above embodiments of the present application can be one or multiple, which can be adjusted according to the actual application scenario, and this is only an exemplary description and is not limited. The number of memories in the embodiments of the present application can be one or multiple, which can be adjusted according to the actual application scenario, and this is only an exemplary description and is not limited.

[0079] It should also be understood that the memory or readable storage medium and the like mentioned in the access network device, terminal device, chip system and the like in the above embodiments in the embodiments of the present application can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM) or a flash memory. The volatile memory can be a random access memory (RAM) used as an external cache. By way of example but not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM) and direct memory bus random access memory (DRAM).

[0080] It should also be noted that when the access network device or the terminal device includes a processor (or a processing unit) and a memory, the processor in the present application can be integrated with the memory, or the processor and the memory can be connected through an interface, which can be adjusted according to the actual application scene and is not limited.

[0081] The embodiments of the present application also provide a computer program or a computer program product including a computer program, which, when executed on a computer, will make the computer implement the method flow related to the access network device or the terminal device in any of the above method embodiments. Correspondingly, the computer can be the access network device or the terminal device described above.

[0082] In the above Figure 2 In the embodiments shown in the above embodiments, all or part can be realized by software, hardware, firmware or any combination thereof. When realized by software, it can be realized in the form of a computer program product in whole or in part.

[0083] The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application are generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center through a wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) manner. The computer-readable storage medium can be any available medium that the computer can store or be integrated into a data storage device such as a server, data center, etc. containing one or more available media. The available media can be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)), etc.

[0084] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described system, device and unit can refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

[0085] In several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of units is only a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interface, device or unit, which can be electrical, mechanical or other forms.

[0086] The units described as separate components can or can not be physically separated, and the components shown as units can or can not be physical units, that is, they can be located in one place, or they can be distributed on a plurality of network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the embodiments.

[0087] In addition, the functional units in each embodiment of the present application can be integrated in one processing unit, or each unit can exist physically, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of software functional unit.

[0088] The integrated unit, if implemented in the form of a software function unit and sold or used as an independent product, can be stored in a computer-readable storage medium. Based on such understanding, the technical solutions of the present application essentially or the part that contributes to the prior art or the whole or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a number of instructions for causing a computer device (which can be a personal computer, a server, or other network devices, etc.) to perform all or part of the steps of the method of the embodiments shown in the embodiments. The storage medium includes various media that can store program codes, such as a U disk, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk or an optical disk, etc. Figure 2

[0089] The terms "first", "second", and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily have to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged under appropriate circumstances, and this is only a way of distinguishing the objects with the same properties in the description of the embodiments of the present application. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, so that the processes, methods, systems, products or devices containing a series of units do not have to be limited to those units, but can include other units not clearly listed or inherent to these processes, methods, products or devices.

[0090] The names of the messages / frames / information, modules or units provided in the embodiments of the present application are only examples, and other names can be used as long as the roles of the messages / frames / information, modules or units are the same.

[0091] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that in the description of the present application, unless otherwise specified, " / " represents that the associated objects before and after are in an "or" relationship, for example, A / B can represent A or B; "and / or" in the present application is only a description of the associated relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which means that there are three cases of A alone, A and B together, and B alone, where A and B can be singular or plural.

[0092] ​The technical scheme provided by the embodiments of the present application can be applied to communication between communication devices. The communication between the communication devices can include communication between a network device and a terminal device, communication between network devices, and / or communication between terminal devices. In the embodiments of the present application, the term "communication" can also be described as "transmission", "information transmission", or "signal transmission", and the like. The transmission can include sending and / or receiving. In the embodiments of the present application, the technical scheme is described by taking the communication between the network device and the terminal device as an example, and the technical scheme can also be used for communication between other scheduling entities and subordinate entities, for example, communication between a macro base station and a micro base station, and communication between a first terminal device and a second terminal device. The scheduling entity can allocate air interface resources to the subordinate entity. The air interface resources include one or more of the following resources: time domain resources, frequency domain resources, code resources, and space resources. In the embodiments of the present application, the number of the above-mentioned resources can be two, three, four, or more, which is not limited in the embodiments of the present application.

[0093] Depending on the context, the word "if" or "if" as used herein can be interpreted as "when" or "when" or "in response to determining" or "in response to detecting". Similarly, depending on the context, the phrase "if determined" or "if detecting (a stated condition or event)" can be interpreted as "when determined" or "in response to determining" or "when detecting (a stated condition or event)" or "in response to detecting (a stated condition or event)".

[0094] The above and the above embodiments are only used to illustrate the technical scheme of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical scheme recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical scheme deviate from the scope of the technical scheme of the embodiments of the present application.

Claims

1. A method for determining a Transmitter Receiving Point (TRP), characterized in that, The access network device sends a plurality of measurement signals to a terminal device through a plurality of TRPs, the plurality of measurement signals include channel state information (CSI) and / or synchronization signal and physical broadcast channel block (SSB), the plurality of TRPs belong to the same cell, the cell uses the same broadcast physical cell identifier (PCI), the plurality of TRPs include a first TRP and a second TRP, the plurality of measurement signals include a first measurement signal and a second measurement signal, the first TRP sends the first measurement signal, the second TRP sends the second measurement signal, and the first measurement signal is different from the second measurement signal. The access network device receives a measurement signal detection result from the terminal device, the measurement signal detection result indicating the signal strength of the plurality of measurement signals when the terminal device receives the plurality of measurement signals. The access network device determines a target TRP according to the measurement signal detection result, the target TRP belonging to the plurality of TRPs. The measurement signal detection result is the identification of the measurement signal with the strongest signal strength when the terminal device receives the plurality of measurement signals.

2. The method of claim 1, wherein, One or more of the plurality of measurement signals includes two or more different CSIs.

3. The method of claim 1, wherein, The terminal device receives a plurality of measurement signals sent by a plurality of TRPs from an access network device, the plurality of measurement signals include channel state information (CSI) and / or synchronization signal and physical broadcast channel block (SSB), the plurality of TRPs belong to the same cell, the cell uses the same broadcast physical cell identifier (PCI), the plurality of TRPs include a first TRP and a second TRP, the plurality of measurement signals include a first measurement signal and a second measurement signal, the first TRP sends the first measurement signal, the second TRP sends the second measurement signal, and the first measurement signal is different from the second measurement signal. 4.A method for determining a transmission reception point (TRP), the method comprising: The terminal device sends a measurement signal detection result to the access network device, so that the access network device determines a target TRP according to the measurement signal detection result, the target TRP belonging to the plurality of TRPs, the measurement signal detection result indicating the signal strength of the plurality of measurement signals when the terminal device receives the plurality of measurement signals. The measurement signal detection result is the identification of the measurement signal with the strongest signal strength when the terminal device receives the plurality of measurement signals. One or more of the plurality of measurement signals includes two or more different CSIs.

5. The method of claim 4, wherein, The sending unit is configured to send a plurality of measurement signals to a terminal device through a plurality of TRPs, the plurality of measurement signals include channel state information (CSI) and / or synchronization signal and physical broadcast channel block (SSB), the plurality of TRPs include a first TRP and a second TRP, the plurality of measurement signals include a first measurement signal and a second measurement signal, the first TRP sends the first measurement signal, the second TRP sends the second measurement signal, and the first measurement signal is different from the second measurement signal.

6. The method of claim 4, wherein, ​ 7. An access network device, comprising: ​ ​ receive, from the terminal device, a measurement signal detection result, the measurement signal detection result indicating signal strengths of the multiple measurement signals when the terminal device receives the multiple measurement signals; determine, according to the measurement signal detection result, a target TRP, the target TRP belonging to the multiple TRPs, and the target TRP being a TRP used when the access network device and the terminal device communicate.

8. The apparatus of claim 7, wherein, The measurement signal detection result is an identification of a measurement signal with the strongest signal strength when the terminal device receives the multiple measurement signals.

9. The apparatus of claim 7, wherein, One or more of the multiple measurement signals include two or more different CSIs.

10. A terminal device, comprising: Comprise: receive, from an access network device, multiple measurement signals sent by multiple TRPs, the multiple measurement signals including channel state information (CSI) and / or synchronization signal and physical broadcast channel blocks (SSBs), the multiple TRPs belonging to a same cell, the cell using a same broadcast physical cell identifier (PCI), the multiple TRPs including a first TRP and a second TRP, the multiple measurement signals including a first measurement signal and a second measurement signal, the first TRP sending the first measurement signal, the second TRP sending the second measurement signal, the first measurement signal being different from the second measurement signal; send, to the access network device, a measurement signal detection result, to enable the access network device to determine, according to the measurement signal detection result, a target TRP, the target TRP belonging to the multiple TRPs, the measurement signal detection result indicating signal strengths of the multiple measurement signals when the terminal device receives the multiple measurement signals.

11. The apparatus of claim 10, wherein, The measurement signal detection result is an identification of a measurement signal with the strongest signal strength when the terminal device receives the multiple measurement signals.

12. The apparatus of claim 10, wherein, One or more of the multiple measurement signals include two or more different CSIs.

13. A computer storage medium, characterized in that The computer storage medium stores instructions, which, when executed on a computer, cause the computer to perform the method of any one of claims 1 to 6.

14. A computer program product, characterised in that, The computer program product, when executed on a computer, causes the computer to perform the method of any one of claims 1 to 6.

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