Communication methods and apparatuses for reporting measurement report

Abstract

Communication methods and apparatuses for reporting a measurement report. A method comprises: a first apparatus receiving reference signals from M cells, wherein M is an integer greater than 1; and the first apparatus sending a measurement report, wherein the measurement report comprises measurement results of reference signals from M1 candidate cells, M1 is a positive integer, the M1 candidate cells belong to the M cells, the M1 candidate cells are related to a first event for triggering the sending of the measurement report, and in the measurement report, the measurement results of the reference signals from the M1 candidate cells are sorted on the basis of at least one of the following: signal quality of the reference signals from the M1 candidate cells, or relationships between the M1 candidate cells and the first event. By means of the method, the first apparatus can accurately sort the measurement results of the reference signals from the M1 candidate cells.

Description

A communication method and apparatus for reporting a measurement report

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese Patent Application No. 202411137196.9, filed on August 16, 2024, and entitled “A communication method and apparatus for reporting a measurement report”, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present application relates to the field of communication technology, and in particular to a communication method and apparatus for reporting a measurement report. BACKGROUND

[0004] In wireless communication, in order to transmit and receive data, obtain system synchronization and feedback channel information, etc., a reference signal is transmitted between a transmitting device and a receiving device. For example, the transmitting device transmits a reference signal to the receiving device, and the receiving device receives the reference signal, and then can perform corresponding operations based on the reference signal, such as performing channel measurement and reporting a measurement report.

[0005] How to report a measurement report needs further study. SUMMARY

[0006] The present application provides a communication method and apparatus for reporting a measurement report.

[0007] In a first aspect, an embodiment of the present application provides a communication method, which can be applied to a first device. The first device can be a terminal, or a device (e.g., a module, a communication module, a circuit or a chip responsible for communication functions (such as a modem chip, also known as a baseband chip, or a system on chip (SoC) chip or a system in package (SIP) chip containing a modem core), a chip system or a processor) of the terminal, or a logic node, a logic module or software capable of realizing all or part of the functions of the terminal. The method can include: the first device receiving reference signals from M cells, M being an integer greater than 1. The first device transmits a measurement report, the measurement report including measurement results of reference signals from M1 candidate cells, M1 being a positive integer, the M1 candidate cells belonging to the M cells, the M1 candidate cells being related to a first event for triggering transmission of the measurement report, and in the measurement report, the measurement results of the reference signals from the M1 candidate cells are sorted according to at least one of the following: signal quality of the reference signals from the M1 candidate cells, or relationship of the M1 candidate cells with the first event.

[0008] By the method, in the measurement report, the measurement results of the reference signals from the M1 candidate cells are ranked according to at least one of: the signal quality of the reference signals from the M1 candidate cells, or the relationship of the M1 candidate cells with the first event. In this way, the first device can accurately rank the measurement results of the reference signals from the M1 candidate cells.

[0009] In addition, one measurement report (e.g., a measurement report including layer 1 (L1) measurement results) can correspond to multiple measurement resource sets, and the resource identities of the resources in different measurement resource sets can be repeated. For example, the resource identities of the resources in each measurement resource set are 0-15. Therefore, the multiple measurement results in one measurement report can respectively correspond to the same resource identity in different measurement resource sets. In this way, it is not possible to determine, by only the resource identity, which measurement resource set the measurement result of the reference signal in the measurement report is for. By ranking the measurement results of the reference signals from the M1 candidate cells, the second device can accurately determine the measurement result in the measurement report is for which measurement resource set.

[0010] For example, the first device is configured with two measurement resource sets, measurement resource set #1 and measurement resource set #2. The resource identities of the resources included in the measurement resource set #1 and the measurement resource set #2 are both 0-15. The resource in the measurement resource set #1 is the resource of the candidate cell #1, and the resource in the measurement resource set #2 is the resource of the candidate cell #2. If according to the above method, the measurement result of the reference signal from the candidate cell #1 is before the measurement result from the candidate cell #2, and in the measurement report, the measurement results of the two reference signals correspond to the resource identity 0, the second device can accurately determine that the measurement result of the first reference signal in the two reference signals is for the measurement resource set #1, and the measurement result of the second reference signal in the two reference signals is for the measurement resource set #2.

[0011] In a second aspect, an embodiment of the present application provides a communication method, which can be applied to a second device. The second device can be an access network device, or a device (for example, a module, a communication module, a circuit or a chip responsible for communication function (such as a modem chip, or a SoC chip or a SIP chip containing a modem core), a chip system or a processor) of the access network device, or a logic node, a logic module or software capable of implementing all or part of the function of the access network device. The method can include: receiving, by the second device, a measurement report, the measurement report including measurement results of reference signals from M1 candidate cells, M1 being a positive integer, the M1 candidate cells including M1 candidate cells related to a first event for triggering the sending of the measurement report, and in the measurement report, the measurement results of the reference signals from the M1 candidate cells being sorted according to at least one of the following: signal quality of the reference signals from the M1 candidate cells, or the relationship between the M1 candidate cells and the first event.

[0012] Through the method, in the measurement report, the measurement results of the reference signals from the M1 candidate cells are sorted according to at least one of the following: signal quality of the reference signals from the M1 candidate cells, or the relationship between the M1 candidate cells and the first event. In this way, the first device can accurately sort the measurement results of the reference signals from the M1 candidate cells.

[0013] In addition, one measurement report (for example, a measurement report including L1 measurement results) can correspond to multiple measurement resource sets, and the resource identifiers of the resources in different measurement resource sets can be repeated. For example, the resource identifiers of the resources in each measurement resource set are 0-15. Therefore, the multiple measurement results in one measurement report can correspond to the same resource identifier in different measurement resource sets, respectively. In this way, it is impossible to determine, by only the resource identifier, the measurement result of the reference signal in the measurement report is for which measurement resource set. By sorting the measurement results of the reference signals from the M1 candidate cells, the second device can accurately determine the measurement result in the measurement report is for which measurement resource set.

[0014] Based on the first aspect or the second aspect, in a possible design, the first cell and the second cell are any two cells in the M1 candidate cells, and in the measurement report, the order of the measurement result of the reference signal from the first cell and the measurement result of the reference signal from the second cell satisfies at least one of the following:

[0015] 1. In a case where a signal quality of a first reference signal is greater than a signal quality of a second reference signal, a measurement result of the reference signal from the first cell is located before a measurement result of the reference signal from the second cell, the first reference signal is a reference signal with the greatest signal quality from the first cell, and the second reference signal is a reference signal with the greatest signal quality from the second cell. Through the design, the first device can accurately determine the order of the measurement result of the reference signal from the first cell and the measurement result of the reference signal from the second cell in the measurement report according to the signal quality of the first reference signal and the signal quality of the second reference signal.

[0016] 2. In a case where a first average signal quality is greater than a second average signal quality, a measurement result of a reference signal from a first cell is located before a measurement result of a reference signal from a second cell, the first average signal quality is an average signal quality of the reference signal from the first cell, and the second average signal quality is an average signal quality of the reference signal from the second cell. Through the design, the first device can accurately determine the order of the measurement result of the reference signal from the first cell and the measurement result of the reference signal from the second cell in the measurement report according to the first average signal quality and the second average signal quality.

[0017] 3. In a case where a first cell belongs to a first group of candidate cells and a second cell belongs to a second group of candidate cells, a measurement result of a reference signal from the first cell is located before a measurement result of a reference signal from the second cell, the first group of candidate cells includes candidate cells related to a first event among M1 candidate cells, and the second group of candidate cells includes candidate cells other than the first group of candidate cells among the M1 candidate cells. Through the design, the first device can accurately determine the order of the measurement result of the reference signal from the first cell and the measurement result of the reference signal from the second cell in the measurement report according to the relationship between the candidate cells and the first event.

[0018] In a possible design based on the first aspect or the second aspect, the first cell and the second cell are any two of the M1 candidate cells. The second device sends the first information; correspondingly, the first device receives the first information, and the first information is used to indicate the first quantity, which is equal to the number of reference signals corresponding to the measurement results of the reference signals from the first cell in the measurement report. The second device sends the second information; correspondingly, the first device receives the second information, and the second information is used to indicate the second quantity, which is equal to the number of reference signals corresponding to the measurement results of the reference signals from the second cell in the measurement report. The first quantity and the second quantity are the same or different. With this design, in the measurement report, the number of reference signals corresponding to the measurement results of the reference signals from each candidate cell is configurable, and the number of reference signals corresponding to the measurement results of the reference signals from different cells can be the same or different. In this way, the second device can flexibly manage the measurement report reported by the first device. For example, for a candidate cell related to the first event, the second device can configure the first device to report measurement results of more reference signals; for a candidate cell not related to the first event, the second device can configure the first device to report measurement results of fewer reference signals, thereby improving the efficiency and accuracy of mobility management of the second device according to the measurement results.

[0019] In a possible design based on the first aspect or the second aspect, the measurement results of the reference signals from the M1 candidate cells further include an identifier of each of the M1 candidate cells. In this way, the second device can accurately determine from which candidate cell the measurement result is according to the identifier of each candidate cell.

[0020] In a possible design based on the first aspect or the second aspect, the M cells further include a serving cell, and the measurement report further includes a measurement result of a reference signal from the serving cell. With this design, the second device can obtain the measurement result of the reference signal from the serving cell, and can thus perform more efficient mobility management.

[0021] In a possible design based on the first aspect or the second aspect, in the measurement report, the measurement result of the reference signal from the serving cell is located before the measurement results of the reference signals from the M1 candidate cells. With this design, the first device can accurately determine the order of the measurement results of the reference signals from the M1 candidate cells and the measurement result of the reference signal from the serving cell in the measurement report according to the source of the reference signal. By sorting the measurement results of the reference signals from the M1 candidate cells and the measurement result of the reference signal from the serving cell, the second device can accurately determine which measurement result set in the measurement report the measurement result is.

[0022] In a possible design based on the first aspect or the second aspect, in a case where the signal quality of the third reference signal is greater than the signal quality of the fourth reference signal, the measurement result of the reference signal from the third cell is located before the measurement result of the reference signal from the serving cell in the measurement report; and / or in a case where the signal quality of the third reference signal is less than the signal quality of the fourth reference signal, the measurement result of the reference signal from the third cell is located after the measurement result of the reference signal from the serving cell in the measurement report, the third cell is any of the M1 candidate cells, the third reference signal is the reference signal with the greatest signal quality from the third cell, and the fourth reference signal is the reference signal with the greatest signal quality from the serving cell. With this design, the first device can accurately determine the order of the measurement result of the reference signal from the third cell and the measurement result of the reference signal from the serving cell in the measurement report according to the signal quality of the third reference signal and the signal quality of the fourth reference signal, and thus can accurately determine the order of the measurement result of the reference signal from the M1 candidate cells and the measurement result of the reference signal from the serving cell in the measurement report. The second device can accurately determine which measurement result set in the measurement report is the result of the measurement result of the reference signal from the M1 candidate cells and the measurement result of the reference signal from the serving cell by sorting the measurement result of the reference signal from the M1 candidate cells and the measurement result of the reference signal from the serving cell.

[0023] In a possible design based on the first aspect or the second aspect, in a case where the third average signal quality is greater than the fourth average signal quality, the measurement result of the reference signal from the third cell is located before the measurement result of the reference signal from the serving cell in the measurement report; and / or in a case where the third average signal quality is less than the fourth average signal quality, the measurement result of the reference signal from the third cell is located after the measurement result of the reference signal from the serving cell in the measurement report, the third average signal quality is the average signal quality of the reference signal from the third cell, and the fourth average signal quality is the average signal quality of the reference signal from the serving cell. With this design, the first device can accurately determine the order of the measurement result of the reference signal from the third cell and the measurement result of the reference signal from the serving cell in the measurement report according to the third average signal quality and the fourth average signal quality, and thus can accurately determine the order of the measurement result of the reference signal from the M1 candidate cells and the measurement result of the reference signal from the serving cell in the measurement report. The second device can accurately determine which measurement result set in the measurement report is the result of the measurement result of the reference signal from the M1 candidate cells and the measurement result of the reference signal from the serving cell by sorting the measurement result of the reference signal from the M1 candidate cells and the measurement result of the reference signal from the serving cell.

[0024] In a possible design based on the first aspect or the second aspect, the second device sends third information; and correspondingly, the first device receives the third information, where the third information is used to indicate whether the first device reports measurement results of reference signals from the serving cell. With this design, the second device can flexibly configure whether the first device reports measurement results of reference signals from the serving cell through the third information.

[0025] In a possible design based on the first aspect or the second aspect, in the case where the third information indicates that the first device reports measurement results of reference signals from the serving cell, the third information is further used to indicate that the first device reports measurement results of N reference signals from the serving cell, where N is a positive integer. With this design, the number of reference signals corresponding to the measurement results of reference signals from the serving cell in the measurement report is configurable. In this way, the second device can flexibly manage the measurement report reported by the first device. For example, for the serving cell related to the first event, the second device can configure the first device to report measurement results of more reference signals; and for the serving cell not related to the first event, the second device can configure the first device to report measurement results of less reference signals, thereby improving the efficiency and accuracy of mobility management of the second device according to the measurement results.

[0026] In a possible design based on the first aspect or the second aspect, the measurement report includes measurement results of reference signals from M2 cells, where M2 is an integer greater than or equal to M1, and the M2 cells are the M1 candidate cells, or the M2 cells include the M1 candidate cells and the serving cell. The fourth cell is any one of the M2 cells, and the measurement report includes measurement results of N1 reference signals from the fourth cell, where N1 is a positive integer. In the measurement report, the measurement results of the N1 reference signals are arranged continuously and are sorted in descending order of signal quality of the reference signals. With this design, the first device can accurately determine the order of the measurement results of the N1 reference signals from the fourth cell in the measurement report. By sorting the measurement results of the N1 reference signals, the second device can accurately determine which measurement resource set the measurement results in the measurement report are for.

[0027] In a possible design based on the first aspect or the second aspect, the measurement results of the N1 reference signals from the fourth cell include: signal quality of a fifth reference signal in the N1 reference signals, and differential quality of each reference signal in the N1 reference signals except the fifth reference signal; where the differential quality of each reference signal is the difference between the signal quality of each reference signal and the signal quality of the fifth reference signal.

[0028] Optionally, the fifth reference signal is the reference signal with the maximum signal quality in the N1 reference signals.

[0029] Through the design, the measurement results of the reference signals from different cells can be respectively quantitatively characterized. In this way, in the case that the difference between the signal qualities of the reference signals from different cells is large, the first device can accurately report the signal qualities of the reference signals from different cells with less overhead, and the accuracy of the reported signal qualities of the reference signals from different cells is improved.

[0030] Based on the first aspect or the second aspect, in a possible design, the measurement report includes measurement results of reference signals from M2 cells, where M2 is an integer greater than or equal to M1, and the M2 cells are the M1 candidate cells, or the M2 cells include the M1 candidate cells and the serving cell. The measurement results of the reference signals from the M2 cells include: a signal quality of a sixth reference signal, and a differential quality of each reference signal from the reference signals from the M2 cells other than the sixth reference signal. The sixth reference signal belongs to the reference signals from the M2 cells, and the differential quality of each reference signal is a difference between the signal quality of each reference signal and the signal quality of the sixth reference signal.

[0031] Optionally, the sixth reference signal is a reference signal with the maximum signal quality from a first cell of the M2 cells.

[0032] Through the design, the measurement results of the reference signals from different cells can be uniformly quantitatively characterized, and the reporting overhead can be reduced.

[0033] In a third aspect, a communication apparatus is provided. In some examples, the communication apparatus can be a terminal, or a device (e.g., a module, a communication module, a circuit or a chip responsible for communication functions (such as a modem chip, or a SoC chip or a SIP chip including a modem core), a chip system, or a processor) of a terminal, or a logical node, a logical module, or software capable of implementing all or part of the functions of a terminal. The communication apparatus has the functions of implementing the first aspect. In other examples, the communication apparatus can be an access network device, or a device (e.g., a module, a communication module, a circuit or a chip responsible for communication functions (such as a modem chip, or a SoC chip or a SIP chip including a modem core), a chip system, or a processor) of an access network device, or a logical node, a logical module, or software capable of implementing all or part of the functions of an access network device. The communication apparatus has the functions of implementing the second aspect.

[0034] In a possible design, the communication apparatus includes a module or unit or means corresponding to the operations of the first aspect or the second aspect, and the module or unit or means can be implemented by software, or by hardware, or by a combination of software and hardware. For example, the communication apparatus includes an interface unit and a processing unit. The interface unit can be configured to transmit and receive signals to implement communication between the communication apparatus and another apparatus. The processing unit can be configured to perform some internal operations of the communication apparatus. The processing unit and the interface unit can perform the functions corresponding to the operations of the first aspect or the second aspect.

[0035] In a possible design, the communication apparatus includes a processor. The processor can execute computer programs or instructions, and when the computer programs or instructions are executed, the communication apparatus can implement the method in any possible design of the first aspect or the second aspect.

[0036] In a possible design, the communication apparatus includes a processor and a memory. The memory can store computer programs or instructions necessary for implementing the functions of the first aspect or the second aspect. The processor can execute the computer programs or instructions stored in the memory, and when the computer programs or instructions are executed, the communication apparatus can implement the method in any possible design of the first aspect or the second aspect.

[0037] In a possible design, the communication apparatus includes a processor and an interface circuit. The processor can be configured to communicate with another apparatus through the interface circuit, and perform the method in any possible design of the first aspect or the second aspect.

[0038] In a fourth aspect, a communication system is provided. The communication system can include a first apparatus and a second apparatus. The first apparatus can perform the communication method in the first aspect, and the second apparatus can perform the communication method in the second aspect.

[0039] In some possible designs, the first apparatus is a terminal, and the second apparatus is an access network device.

[0040] In a fifth aspect, a computer readable storage medium is provided. The computer readable storage medium stores computer programs or instructions. When the computer programs or instructions are executed, the method in any possible design of the first aspect or the second aspect is implemented.

[0041] In a sixth aspect, a computer program product is provided. The computer program product includes computer program codes. When the computer program codes are run, the method in any possible design of the first aspect or the second aspect is implemented.

[0042] In a seventh aspect, the present application provides a chip for reading a computer program stored in a memory to perform the method in any possible design of any one of the first aspect or the second aspect.

[0043] The technical effects achieved by any one of the third aspect to the seventh aspect can be described with reference to the technical effects achieved by any one of the first aspect or the second aspect, and the repeated parts will not be discussed. BRIEF DESCRIPTION OF DRAWINGS

[0044] FIGS. 1A-1B are architecture diagrams of several communication systems provided by embodiments of the present application;

[0045] FIG. 1C is an architecture diagram of an open radio access network (O-RAN or ORAN) device provided by embodiments of the present application;

[0046] FIG. 1D is a schematic diagram of an application scenario provided by embodiments of the present application;

[0047] FIG. 1E is a schematic diagram of a correspondence between a cell and a carrier provided by embodiments of the present application;

[0048] FIG. 2 is a flowchart of a communication method provided by embodiments of the present application;

[0049] FIGS. 3-6 are structural diagrams of several communication apparatuses provided by embodiments of the present application. DETAILED DESCRIPTION

[0050] The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings. The technical solutions in the embodiments of the present application can be applied to various communication systems, such as a wireless local area network (WLAN), a wireless fidelity (Wi-Fi or WiFi) system, a 4th generation (4G) mobile communication system (such as a long term evolution (LTE) system), a 5th generation (5G) mobile communication system (such as a new radio (NR) system), or a future communication system. The method provided by the embodiments of the present application can be applied to a terrestrial network communication system or a non-terrestrial network (NTN) communication system. The NTN communication system may, for example, be a satellite communication system, or may include a drone, a high altitude platform station (HAPS), and other aerial access network devices, which are not limited by the present application.

[0051] The present application will present various aspects, embodiments or features around systems that can include a plurality of devices, components, modules, etc. It should be understood and appreciated that various systems can include additional devices, components, modules, etc., and / or can not include all of the devices, components, modules, etc., discussed in connection with the figures. Additionally, a combination of these approaches can be used.

[0052] FIG. 1A illustrates a schematic diagram of a communication system according to an embodiment of the present application. As shown in FIG. 1A, the communication system 10 includes a radio access network (RAN) 100 and a core network (CN) 200. Optionally, the communication system 10 can also include an Internet 300.

[0053] The RAN 100 includes at least one RAN node (e.g., 110a and 110b in FIG. 1A, collectively referred to as 110) and at least one terminal (e.g., 120a-120j in FIG. 1A, collectively referred to as 120). Other RAN nodes, such as wireless relay devices and / or wireless backhaul devices (not shown in FIG. 1A), etc., can also be included in the RAN 100. The terminals 120 are connected to the RAN nodes 110 in a wireless manner. The RAN nodes 110 are connected to the core network 200 in a wireless or wired manner. The core network devices in the core network 200 and the RAN nodes 110 in the RAN 100 can be different physical devices, respectively, or can be the same physical device integrated with the logical functions of the core network and the radio access network.

[0054] The RAN 100 can be a 3rd generation partnership project (3GPP) related cellular system, such as a 4G, 5G mobile communication system, or a future evolution system. The RAN 100 can also be an ORAN, a cloud radio access network (CRAN), or a WiFi system. The RAN 100 can also be a communication system that integrates two or more of the above systems.

[0055] The RAN nodes 110, which can also be referred to as RAN entities or access nodes, etc., form part of the communication system and are configured to facilitate wireless access for terminals. The RAN nodes 110 in the communication system 10 can be of the same type or of different types. In some scenarios, the roles of the RAN nodes 110 and the terminals 120 are relative, e.g., the network element 120i in Figure 1A can be a helicopter or a drone, which can be configured to move as a mobile base station, to the terminals 120j accessing the RAN 100 through the network element 120i, the network element 120i is a base station; but to the base station 110a, the network element 120i is a terminal. The RAN nodes 110 and the terminals 120 are sometimes referred to as communication apparatuses, e.g., the network elements 110a and 110b in Figure 1A can be understood as communication apparatuses with base station functionalities, and the network elements 120a-120j can be understood as communication apparatuses with terminal functionalities.

[0056] The RAN nodes can also be referred to as access network devices. In the following, the access network devices are used for description, unless specifically stated otherwise.

[0057] The access network devices can be devices or modules with corresponding communication functions located at the network side of the above communication system. The access network devices usually have communication modules, circuits or chips for performing corresponding communication functions, and programs or instructions and corresponding programs or instructions for performing corresponding communication functions.

[0058] In a possible scenario, the access network device can be a base station (BS), an evolved NodeB (eNodeB), a transmission point (TP), an access point (AP), a transmission reception point (TRP), a mobile switching center, a next generation NodeB (gNB), a next generation NodeB in a future communication system, or an access node in a WiFi system, etc. The access network device can be a macro base station (such as 110a in FIG. 1A), a micro base station or an indoor station (such as 110b in FIG. 1A), a relay node or a donor node, a wireless controller in a CRAN scenario, a satellite, a drone, a balloon or an airplane, etc. Optionally, the access network device can also be a server, a wearable device, a vehicle or a vehicle-mounted device, etc. For example, the access network device in vehicle-to-everything (V2X) technology can be a road side unit (RSU). All or part of the functions of the access network device in this application can also be implemented by software functions running on hardware, or by virtualized functions instantiated on a platform (such as a cloud platform).

[0059] In another possible scenario, multiple access network devices cooperate to assist a terminal to implement wireless access, and different access network devices respectively implement part of the functions of a base station. For example, the access network device can be a central unit (CU) or a control unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU), etc. The CU and the DU can be separately arranged, or can be included in the same network element, such as a baseband unit (BBU). The RU can be included in a radio frequency device or a radio frequency unit, such as a radio frequency remote unit (RRU), an active antenna unit (AAU) or a remote radio head (RRH).

[0060] In different systems, the CU (or CU-CP and CU-UP), DU or RU can also have different names, but those skilled in the art can understand their meanings. For example, in the ORAN system, the CU can also be referred to as an open CU (O-CU), the DU can also be referred to as an open DU (O-DU), the CU-CP can also be referred to as an open CU-CP (O-CU-CP), the CU-UP can also be referred to as an open CU-UP (O-CU-UP), and the RU can also be referred to as an open RU (O-RU). Any of the CU (or CU-CP, CU-UP), DU and RU in this application can be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0061] For ease of description, the concepts of "access network device" and "station" will be mentioned in this application. The access network device can be understood as the general term of all devices (including stations) on the access network side, for example, one or more stations can be collectively referred to as an access network device. The station can refer to a transmission node that is specifically located at a physical location. In other words, the access network device conceptually includes the station.

[0062] The terminal can be a device or module with corresponding communication functions for accessing the above communication system. The terminal can also be referred to as a terminal device, a user equipment (UE), a mobile station, a mobile terminal, a wireless terminal device, a subscriber unit, a subscriber station, a mobile station, a remote station, a user terminal device, a user agent, or a user device, etc. The terminal is usually provided with a communication module, circuit or chip for executing corresponding communication functions. The terminal can also be configured with programs or instructions for executing corresponding communication functions.

[0063] The terminal can be widely applied to various scenarios, for example, device-to-device (D2D), V2X communication, machine-type communications (MTC), internet of things (IoT), virtual reality, augmented reality, industrial control, automatic driving, remote medical treatment, smart power grid, smart furniture, smart office, smart wear, smart transportation, smart city, etc. The terminal can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a wearable device, a vehicle, a drone, a helicopter, an airplane, a ship, a robot, a mechanical arm, a smart home device, etc. Among them, the wearable device can also be called a wearable smart device or a smart wearable device, etc., which is a general term of devices that can be worn by applying wearable technology to the intelligent design of daily wear. The terminal applied to the vehicle can be called a vehicle terminal device, for example, a transportation vehicle with wireless communication function, a communication module or an on-board unit (OBU).

[0064] For example, the terminal can include a mobile phone (or called "cellular" phone), a computer with mobile terminal device, or a portable, pocket-sized, handheld, computer-embedded mobile device, etc. For example, the terminal can be a personal communication service (PCS) phone, a cordless phone, a session initiation protocol phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), etc. The terminal can also include a limited device, for example, a device with limited power consumption, or a device with limited storage capacity, or a device with limited computing power, etc. For example, the terminal can be a bar code, a radio frequency identification (RFID), a sensor, a global positioning system (GPS), or a laser scanner, etc. The embodiments of the present application do not limit the device form of the terminal.

[0065] In this application, the core network device refers to a device in the core network that provides service support for the terminal. For example, in the case of CN 200 as the core network in the future communication system, or the 5G core network, or the evolved 5G core network, some examples of core network devices are: access and mobility management function (AMF) entity, session management function (SMF) entity, user plane function (UPF) entity, policy control function (PCF) entity, etc., which are not listed one by one here. Among them, the AMF entity can be responsible for access management and mobility management of the terminal; the SMF entity can be responsible for session management, such as session establishment of the user, etc.; the UPF entity can be a functional entity of the user plane, mainly responsible for connecting external networks. For another example, in the case of CN 200 as the 4G core network, some examples of core network devices are: mobile management entity (MME) entity, home subscriber server (HSS) entity, serving gateway (S-GW) entity, policy and charging rules function (PCRF) entity, public data network gateway (PDN gateway, P-GW) entity, etc., which are not listed one by one here. It should be noted that the entity in this application can also be referred to as a network element or a functional entity, for example, the AMF entity can also be referred to as an AMF network element or an AMF functional entity, for another example, the SMF entity can also be referred to as an SMF network element or an SMF functional entity, etc. The above core network devices can work independently, or can be combined together to realize certain control functions, such as: AMF, SMF and PCF can be combined together as a core network device.

[0066] FIG. 1B illustrates an example of an ORAN system architecture according to some embodiments. The ORAN system in the embodiments can include other components than those shown in FIG. 1B. As shown in FIG. 1B, the access network device can communicate with the CN through a backhaul link and communicate with the terminal through an air interface. For example, the BBU in the access network device communicates with the core network through a backhaul link, and the RU in the access network device communicates with at least one terminal through an air interface. The BBU communicates with at least one RU through a front-haul link. The BBU and the RU can be co-located or not co-located. The BBU includes at least one CU and at least one DU, which can communicate through at least one mid-haul link.

[0067] FIG. 1C illustrates an example of a network element function division and protocol layer structure of an ORAN device according to some embodiments.

[0068] In some possible implementations, the CU is a logical node that carries the radio resource control (RRC) layer, the service data adaptation protocol (SDAP) layer, the packet data convergence protocol (PDCP) layer, and other control functions of the access network device. The CU can be connected to a network node such as a core network through some interfaces (e.g., an E2 interface, etc.). Optionally, the CU can have part of the functions of the core network. The CU (e.g., the PDCP layer and higher layers of the CU) is connected to the DU (e.g., the radio link control (RLC) layer and lower layers of the DU) through some interfaces (e.g., an F1 interface, etc.). For example, the F1 interface can provide control plane (C-Plane) and user plane (U-Plane) functions (e.g., interface management, system information management, UE context management, RRC message transmission, etc.). The F1AP is an application protocol of the F1 interface, which defines the signaling procedures of the F1 in some examples. The F1 interface supports the F1 control plane (F1-C) and the F1 user plane (F1-U).

[0069] In some examples, a CU can include a CU-CP and a CU-UP. Wherein the CU-CP is a logical node carrying a control plane part of PDCP (PDCP-C) layer of RRC layer and packet data convergence protocol layer, used to implement the control plane function of the CU. The CU-CP can interact with a network element in the core network for implementing the control plane function. The network element in the core network for implementing the control plane function can be an access and mobility function network element, such as an AMF in a 5G system. The CU-UP is a logical node carrying a user plane part of PDCP (PDCP-U) layer of SDAP layer and packet data convergence protocol layer, used to implement the user plane function of the CU. The CU-UP can interact with a network element in the core network for implementing the user plane function. The network element in the core network for implementing the user plane function is, for example, a UPF in a 5G system.

[0070] In some possible implementations, a DU is a logical node carrying an RLC layer, a medium access control (MAC) layer, a higher physical (Higher PHY) layer and other functions. In some examples, a DU can control at least one RU. The DU is connected to the RU through some interfaces (for example, a front-haul interface). In some examples, the Higher PHY layer includes part of physical layer (PHY) processing, such as forward error correction (FEC) encoding and decoding, scrambling, modulation and demodulation, and other processing functions.

[0071] The above configuration of the CU and the DU is only an example, and the functions of the CU and / or the DU can be configured as needed. For example, the CU or the DU can be configured to have more functions of protocol layers, or the CU or the DU can be configured to have partial processing functions of protocol layers. For example, part of the functions of the RLC layer and the functions of the protocol layers above the RLC layer are arranged in the CU, and the remaining functions of the RLC layer and the functions of the protocol layers below the RLC layer are arranged in the DU. For another example, the functions of the CU or the DU can be divided according to the type of service or other system requirements, for example, according to delay. The functions that need to meet the requirement of a shorter delay in processing time are arranged in the DU, and the functions that do not need to meet the requirement are arranged in the CU.

[0072] In some possible implementations, the RU is a logical node that hosts lower physical (Lower PHY) layer and radio frequency (RF) processing. In some examples, the RU can be a 3GPP TRP or RRH or other similar functional entity. In some examples, the Low-PHY includes portions of PHY processing such as fast Fourier transform (FFT), inverse fast Fourier transformation (IFFT), digital beamforming and filtering, and other processing functions. The RU communicates with one or more terminals over a wireless link.

[0073] The DU and the RU can or can not be co-located. The DU and the RU exchange control plane and user plane information over a fronthaul link via a lower-layer split-control, user and synchronization (Lower-Layer Split CUS-Plane, LLS-CUS or LLS-C / U / S) interface. The LLS-CUS can include a lower-layer split-control plane (LLS-C) interface and a lower-layer split-user plane (LLS-U) interface that provide control plane (C-Plane) and user plane (U-Plane), respectively. In some examples, the control plane refers to real-time control between the DU and the RU. The DU and the RU exchange management information over a lower-layer split management (LLS-M) interface of the fronthaul link. The management plane (M-Plane) refers to non-real-time management operations between the DU and the RU.

[0074] The DU and the RU can cooperate to collectively implement the functionality of the PHY layer. One DU can be connected to one or more RUs. The functionalities that the DU and the RU have can be configured in multiple ways according to design. For example, the DU is configured to implement baseband functionality and the RU is configured to implement mid- RF functionality. As another example, the DU is configured to implement high-layer functionality in the PHY layer and the RU is configured to implement low-layer functionality in the PHY layer or to implement the low-layer functionality and RF functionality. The high-layer functionality in the PHY layer can include a portion of the functionality of the PHY layer that is closer to the MAC layer, and the low-layer functionality in the PHY layer can include another portion of the functionality of the PHY layer that is closer to the mid-RF side.

[0075] FIG. 1D exemplarily shows a schematic diagram of an application scenario provided by the embodiments of the present application. As shown in FIG. 1D, a terminal can move from the coverage of a serving cell to the coverage of a neighbor cell. The neighbor cell of the serving cell can include candidate cell #1 to candidate cell #5. Among them, the coverage of candidate cell #1 and candidate cell #2 is the same, and the coverage of candidate cell #3 and candidate cell #4 is the same. It should be understood that FIG. 1D takes 5 candidate cells as an example for illustration, and in actual application, the neighbor cell of the serving cell can include more or less candidate cells.

[0076] It should be understood that the application scenario shown in FIG. 1D can include one or more access network devices and one or more terminals. For example, the serving cell and the neighbor cell of the serving cell in FIG. 1D are cells working in the same access network device. For another example, candidate cell #1 and candidate cell #2 in FIG. 1D are cells working in a first access network device, candidate cell #3 and candidate cell #4 are cells working in a second access network device, and candidate cell #5 is a cell working in a third access network device. For yet another example, candidate cell #1 and candidate cell #2 in FIG. 1D are cells working in a first access network device, candidate cell #3 and candidate cell #4 are cells working in a second access network device, candidate cell #5 is a cell working in a third access network device, and the serving cell is a cell working in a fourth access network device.

[0077] As shown in FIG. 1E, in the scenario shown in FIG. 1D, each cell in the serving cell and the neighbor cell of the serving cell can be configured with one or more carriers. In the present application, the carrier can also be referred to as a component carrier (CC); the carrier in the serving cell can be referred to as a serving cell; after the terminal switches to a certain neighbor cell of the serving cell, the carrier in the neighbor cell can be referred to as a serving cell (serving cell). FIG. 1E takes one access network device and one terminal as an example for illustration. It should be understood that in actual application, more access network devices and / or more terminals can be included.

[0078] The communication system and service scenario described in the embodiments of the present application are for more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. Those skilled in the art can know that the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems as the network architecture evolves and new service scenarios appear.

[0079] The related terms involved in the embodiments of the present application will be explained first. It should be noted that these explanations are for the purpose of making the embodiments of the present application easier to understand, and should not be regarded as a limitation on the scope of protection required by the present application.

[0080] 1. Reference signal (RS):

[0081] A reference signal is also called a pilot signal, a reference sequence, or a benchmark signal, etc. In a communication system, it is necessary to estimate an uplink channel or a downlink channel in order to transmit and receive data, acquire system synchronization, and feed back channel information. Channel estimation refers to a process of reconstructing or recovering a received signal in order to compensate for signal distortion caused by channel fading and noise due to fading. It determines time-domain and frequency-domain variations of a channel using a benchmark signal known to a transmitter and a receiver. The above-mentioned benchmark signal is also called a reference signal, which is distributed on one or more resource elements (REs) in a time-frequency two-dimensional space within an orthogonal frequency division multiplexing (OFDM) symbol, and has a known amplitude and phase.

[0082] At a physical layer, uplink communication can include transmission of an uplink physical channel and an uplink signal. For example, the uplink physical channel can include at least one of a physical random access channel (PRACH), a physical uplink control channel (PUCCH), or a physical uplink shared channel (PUSCH), etc., and the uplink signal can include at least one of a sounding reference signal (SRS), a physical uplink control channel demodulation reference signal (PUCCH-DMRS), a physical uplink shared channel demodulation reference signal (PUSCH-DMRS), a demodulation reference signal (DMRS), a phase tracking reference signal (PTRS), or a positioning signal (positioning RS), etc. Among them, the positioning reference signal is, for example, an SRS for positioning (SRS for positioning) or a positioning SRS (positioning SRS).

[0083] At the physical layer, the downlink communication can include transmission of downlink physical channels and downlink signals. Exemplarily, the downlink physical channels can include at least one of a physical broadcast channel (PBCH), a physical downlink control channel (PDCCH), or a physical downlink shared channel (PDSCH), etc.; the downlink signals can include at least one of a channel state information reference signal (CSI-RS), a cell-specific reference signal (CS-RS), a user equipment-specific reference signal (US-RS), a downlink DMRS, a downlink PTRS, or a synchronization signal / physical broadcast channel block (SS / PBCH block), etc. The SS / PBCH block can be referred to as a synchronization signal block (SSB) for short.

[0084] It should be understood that the reference signals listed above are only examples and should not constitute any limitation on the present application. The present application does not exclude the possibility of defining other reference signals in future protocols to achieve the same or similar functions.

[0085] In the present application, the reference signals can be from a serving cell and / or a candidate cell. The serving cell can be a current primary cell (Pcell). The candidate cell can also be referred to as a handover candidate cell or a neighbor cell. Optionally, the candidate cell can be a serving cell or a non-serving cell other than the Pcell. For example, the physical cell identifier (PCI) of the candidate cell is different from the PCI of the current Pcell. For another example, the PCI of the candidate cell is an additional PCI; in other words, the reference signals can be reference signals associated with the additional PCI, i.e., reference signals of a neighbor cell.

[0086] 2. Reference signal resource:

[0087] A reference signal can be configured in the form of a resource. The access network device can configure each reference signal in the form of a resource to the terminal, and one resource is one configuration information unit, which usually includes a reference signal related parameter, such as the time-frequency resource position of the reference signal, the number of ports, the time domain type (periodic / semi-static / non-periodic), etc. The sending terminal device can send the reference signal based on the reference signal resource, and the receiving terminal device can receive the reference signal based on the reference signal resource.

[0088] In order to distinguish different reference signal resources, each reference signal resource can correspond to a reference signal resource identifier, such as a CSI-RS resource indicator (CRI), an SSB resource indicator (SSBRI), or an SRS resource indicator (SRI).

[0089] In this application, the reference signal resource to be measured can be a reference signal resource associated with the configuration of the candidate cell. Optionally, the terminal can be configured with the configuration of one or more candidate cells, and each configuration of the candidate cell can include the configuration of the reference signal resource.

[0090] 3、beam:

[0091] The mobile communication system (for example, the 5G mobile communication system) can use high frequency communication, that is, use high frequency band signals to transmit data. One of the main problems of high frequency communication is that the signal energy decreases sharply with the transmission distance, resulting in short signal transmission distance. In order to overcome this problem, high frequency communication uses analog beam technology, which concentrates signal energy in a small angle range by weighting processing of antenna array, forms a signal similar to light beam (called analog beam, simply beam), thereby improving the transmission distance. The access network device and the terminal can use the beam for transmission.

[0092] A beam can be referred to as a spatial domain filter, a spatial filter, a spatial domain parameter, a spatial parameter, a spatial domain setting, a spatial setting, quasi co-location (QCL) information, a QCL assumption, or a QCL indication, and the like in a protocol (e.g., an NR protocol). A beam can also be represented by a transmission configuration indicator state parameter, or by a spatial relation parameter. Among them, the English of the transmission configuration indicator state can be transmission configuration indicator state (TCI-state), transmission configuration indication state (TCI-state), or transmission configuration index state (TCI-state), and the like. Therefore, in this application, the beam can be replaced by the spatial domain filter, the spatial filter, the spatial domain parameter, the spatial parameter, the spatial domain setting, the spatial setting, the QCL information, the QCL assumption, the QCL indication, the TCI-state (e.g., the downlink TCI-state (DL TCI-state), and / or the uplink TCI-state (UL TCI-state)), or the spatial relation, and the like. The above terms are also equivalent to each other. The beam can also be replaced by other terms representing the beam, which is not limited in this application.

[0093] A beam for transmitting a signal can be referred to as a transmission beam (Tx beam), a spatial domain transmission filter, a spatial transmission filter, a spatial domain transmission parameter, a spatial transmission parameter, a spatial domain transmission setting, or a spatial transmission setting.

[0094] A beam for receiving a signal can be referred to as a reception beam (Rx beam), a spatial domain reception filter, a spatial reception filter, a spatial domain reception parameter, a spatial reception parameter, a spatial domain reception setting, or a spatial reception setting.

[0095] A transmission beam can refer to a distribution of signal strength in different directions in space after a signal is transmitted by an antenna, and a reception beam can refer to a distribution of signal strength in different directions in space of a wireless signal received by an antenna.

[0096] In addition, a beam can be a wide beam, or a narrow beam, or another type of beam. The technology for forming a beam can be beamforming technology or other technology. The beamforming technology can be, for example, digital beamforming technology, analog beamforming technology, or hybrid beamforming technology, etc.

[0097] A beam is generally associated with a resource. For example, when performing beam measurement, an access network device measures different beams through different resources, and a terminal feeds back the measured resource quality, so that the access network device knows the quality of the corresponding beam. In data transmission, a beam can also be indicated by its corresponding resource. For example, a beam can be indicated by at least one of the following resources: an SSB resource, a CSI-RS resource, an SRS resource, a DMRS resource, or a PTRS resource, etc. Among them, the SSB resource can be a resource for transmitting an SSB; the CSI-RS can be a resource for transmitting a CSI-RS; the SRS resource can be a resource for transmitting an SRS; the DMRS resource can be a resource for transmitting a DMRS; and the PTRS can be a resource for transmitting a PTRS.

[0098] In some implementations, the access network device can indicate the information of the PDSCH beam of the terminal through a transmission configuration indication field in downlink control information (DCI). The transmission configuration indication can be referred to as transmission configuration indicator (TCI), transmission configuration indication (TCI), transmission configuration index (TCI), etc.

[0099] Optionally, multiple beams with the same or similar communication characteristics can be regarded as one beam. One beam can include one or more antenna ports for transmitting data channels, control channels, and sounding signals, etc. The one or more antenna ports forming one beam can also be regarded as an antenna port set.

[0100] 4. Reporting of measurement results

[0101] The terminal can measure the reference signal from the access network device and report a measurement report, which can include the measurement results of the reference signal. The access network device can determine the transmission parameters according to the measurement report. For example, the access network device can send multiple reference signals, where different reference signals can be sent using different time-frequency domain resources, or different signals can be sent using different beams. The terminal measures and feeds back the measurement results of multiple reference signals, which can help the access network device to determine the transmission parameters (such as beam, channel coding rate, etc.) used in subsequent communication transmission.

[0102] In scenarios involving terminal movement between multiple cells, the access network device can determine whether the terminal performs preparation before handover and / or whether the terminal performs handover according to the measurement results of the reference signals of the serving cell and / or neighboring cells reported by the terminal. The preparation before handover can include, but is not limited to, at least one of the following: the serving cell obtains the configuration information of the neighboring cell from the device of the core network or the neighboring cell, or the serving cell instructs the terminal to start acquiring the uplink timing of the candidate neighboring cell (or candidate cell). In this application, the neighboring cell can also be referred to as a neighboring cell, or a cell adjacent to the serving cell. The neighboring cell can be geographically adjacent to the serving cell, or it can be logically adjacent to the serving cell.

[0103] In some possible manners, the terminal's measurement result reporting procedure is dominated by the access network device, i.e., the access network device decides when the terminal reports the measurement result; or in other words, the terminal's measurement result reporting is based on the indication or configuration of the access network device. The access network device can configure the terminal to report the measurement result in one of the following three manners: periodic reporting, semi-persistent reporting, and aperiodic reporting. The semi-persistent reporting is also referred to as semi-static reporting.

[0104] Periodic reporting: The access network device sends reference signal resource configuration information to the terminal. The reference signal resource configuration information includes periodic reference signal resources. The access network device configures the terminal to periodically measure the reference signal. The terminal can measure the reference signal periodically based on the reference signal resource configuration information, and periodically report the measurement result. Optionally, in the periodic reporting, the measurement result can be carried on a PUCCH resource.

[0105] Semi-persistent reporting:

[0106] In some possible manners, the terminal periodically measures the reference signal, but reports the measurement result in the semi-persistent manner. For example, the access network device sends reference signal resource configuration information to the terminal. The reference signal resource configuration information includes periodic reference signal resources. The access network device configures the terminal to periodically measure the reference signal. When the terminal receives activation signaling (for example, a medium access control-control element (MAC CE) or a DCI) from the access network device, the terminal can continuously report the measurement result. Of course, the access network device can also send a deactivation instruction to the terminal, so as to deactivate the terminal's semi-persistent reporting procedure.

[0107] In another possible implementation manner, both the measurement of the reference signal and the reporting of the measurement result are semi-persistent. When the terminal receives activation signaling from the access network device, the terminal continuously measures the reference signal and reports the measurement result. When the terminal receives a deactivation instruction from the access network device, the terminal stops reporting the measurement result. Optionally, the measurement result of the semi-persistent CSI-RS can be reported in the semi-persistent manner.

[0108] Optionally, in the semi-persistent reporting, the measurement result can be carried on a PUCCH resource or a PUSCH resource.

[0109] Non-periodic reporting: When the terminal receives a triggering instruction (e.g., DCI) from the access network device, the terminal measures the reference signal and reports the measurement result. After completing the reporting, the terminal stops reporting the measurement result. Optionally, the reference signal can be a periodic reference signal, a semi-persistent reference signal, or a non-periodic reference signal. Optionally, in non-periodic reporting, the measurement result can be carried on a PUSCH resource.

[0110] For example, the access network device can configure the terminal to perform periodic reporting of L1 measurement results, where L1 can also be referred to as the physical layer. The measurement results reported by the terminal can include the identity of the reported reference signal and the reference signal received power (RSRP) corresponding to the reference signal. Table 1 is a format of the measurement results reported by the terminal according to a protocol. In Table 1, the CRI field and the SSBRI field can be used to indicate the index of the reference signal to be reported. The terminal can report CRI or SSBRI, or can report both CRI and SSBRI. The RSRP can represent the quality of the corresponding reference signal. The reporting of RSRP can use a differential reporting criterion. For example, the RSRP of the best reference signal can be reported using 7-bit quantization in the RSRP field in Table 1, and the RSRP of other reference signals can be reported using 4-bit quantization in the differential RSRP field in Table 1. It should be understood that the measurement results reported by the terminal can include one or more CRI fields and / or SSBRI fields, and / or can include one or more differential RSRP fields. For example, the measurement results reported by the terminal can include the identity of four reference signals and the RSRP corresponding to the four reference signals.

[0111] Table 1

[0112] This approach results in a large overhead of uplink resources. For example, the access network device needs to pre-allocate reporting resources for the measurement results of the terminal, and the terminal can then perform reporting. In a mobility scenario, if the access network device allocates reporting resources for the measurement results of the terminal for a neighbor cell too early, resource waste can easily occur, because if the quality of the current serving cell is good, the access network device will not perform additional operations even if the terminal measures and reports the measurement results of the reference signal from the neighbor cell. If the access network device allocates reporting resources for the measurement results of the terminal for a neighbor cell too late, handover failure can easily occur, because if the quality of the current serving cell is already poor, the probability of failure of the terminal to report the measurement results is high due to the limited uplink transmission power of the terminal, even if the terminal can receive the configuration and indication for measurement reporting, thereby causing handover failure.

[0113] In some other possible manners, the terminal can trigger the reporting of the measurement result, which can be referred to as a UE triggered measurement and report manner or mechanism. In this manner, the access network device can pre-configure a condition for the terminal triggered measurement and report. This condition can also be referred to as an event, and the triggering criterion of different events can be different. When the event is triggered (or satisfied), the terminal can report the measurement result related to the event.

[0114] For example, the event pre-configured by the access network device for the terminal triggered measurement and report includes that the signal quality of the reference signal of the current serving cell is less than a certain preset threshold. The terminal measures the reference signal of the serving cell. When the signal quality of the reference signal of the serving cell measured by the terminal is less than the preset threshold, the terminal can report the measurement result related to the event.

[0115] Optionally, in this manner, the access network device can also pre-configure a reporting resource for the terminal to report the measurement result. When the event is triggered (or satisfied), the terminal can report the measurement result related to the event through the reporting resource. For example, the event pre-configured by the access network device for the terminal triggered measurement and report includes that the signal quality of the reference signal of the current serving cell is less than a certain preset threshold. The reporting resource pre-configured by the access network device for the terminal to report the measurement result is resource #1. The terminal measures the reference signal of the serving cell. When the signal quality of the reference signal of the serving cell measured by the terminal is less than the preset threshold, the terminal can report the measurement result related to the event through resource #1.

[0116] In this application, the event can represent an event related to the UE initiated report, or an event related to the UE initiated measurement result report, or an event related to the report (or measurement result) after the UE initiates measurement, or a specific condition related to the UE initiated measurement result report. For example, the terminal can actively perform measurement (such as beam measurement, or channel measurement, etc.), and then obtain the measurement result related to the event. For another example, the terminal can perform measurement based on the reference signal according to the configuration of the reference signal resource, and then obtain the measurement result related to the event. For another example, the terminal actively performs measurement, and reports the measurement result related to the event when a specific condition is met.

[0117] Optionally, the event can include an event discussed in the standard discussion process, for example, the signal quality of the reference signal of the current serving cell is less than a certain preset threshold; and / or, the signal quality of the reference signal of the current serving cell is less than the signal quality of the reference signal of a certain candidate cell. And / or, the event can include an event discussed or defined in the future standard discussion process.

[0118] Exemplarily, in this application, the event can include, but is not limited to, at least one of the following:

[0119] 1. The beam quality of the serving cell or the group to which the serving cell belongs is less than a first threshold.

[0120] 2. The beam quality of the candidate cell or the group to which the candidate cell belongs is greater than the sum of the beam quality of the serving cell and a first offset.

[0121] 3. The sum of the beam quality of the candidate cell or the group to which the candidate cell belongs and a second offset is greater than the beam quality of the serving cell or the group to which the serving cell belongs.

[0122] 4. The beam quality of the candidate cell or the group to which the candidate cell belongs is greater than a second threshold.

[0123] 5. The beam quality of the serving cell or the group to which the serving cell belongs is less than a first threshold, and the beam quality of the candidate cell or the group to which the candidate cell belongs is greater than a second threshold.

[0124] Wherein, either of the first offset and the second offset can be positive, 0 or negative. At least one of the first offset, the second offset, the first threshold and the second threshold can be pre-set, for example, protocol specified, or can be determined by the terminal, or can be notified to the terminal by other devices (for example, access network equipment or core network equipment).

[0125] Optionally, the beam quality can be replaced by at least one of the following: the quality of part or all beams, the quality of T beams with the best quality, the average quality of T beams with the best quality, the quality of T beams with the strongest, or the average quality of T beams with the strongest. T is an integer greater than or equal to 1. Wherein, the average quality of T beams can have various forms, for example, it can be a linear average of the quality of T beams, or it can be a weighted average of the quality of T beams, etc.

[0126] As described before, the beam is generally corresponding to a resource. For example, the beam can correspond to a reference signal resource, and thus, the beam can correspond to a reference signal transmitted on the reference signal resource. The beam quality of the serving cell or the group to which the serving cell belongs can be replaced by at least one of the following: the quality of the reference signal resource of the serving cell or the group to which the serving cell belongs, or the signal quality of the reference signal from the serving cell or the group to which the serving cell belongs. The beam quality of the candidate cell or the group to which the candidate cell belongs can be replaced by at least one of the following: the quality of the reference signal resource of the candidate cell or the group to which the candidate cell belongs, or the signal quality of the reference signal from the candidate cell or the group to which the candidate cell belongs.

[0127] Optionally, the signal quality of the reference signal can be replaced by at least one of the following: the signal quality of part or all of the reference signal, the quality of the T reference signals with the best quality, the average quality of the T reference signals with the best quality, the quality of the T reference signals with the strongest, or the average quality of the T reference signals with the strongest. T is an integer greater than or equal to 1. The average quality of the T reference signals can have various forms, for example, it can be a linear average of the quality of the T reference signals, or it can be a weighted average of the quality of the T reference signals, etc.

[0128] In this application, the event can also have other names, such as trigger event, L1 trigger event, CSI measurement reporting trigger event, beam measurement reporting trigger event, L1 CSI reporting trigger event, or L1 beam measurement reporting trigger event, as long as it has the same function, it is within the protection scope of this application.

[0129] 5. Signal quality:

[0130] In this application, the signal quality can be but not limited to represented by at least one of the following: RSRP, signal-to-interference-plus-noise ratio (SINR), layer 1 reference signal received power (L1-RSRP), layer 1 signal-to-interference-plus-noise ratio (L1-SINR), synchronization signal reference signal received power (SS-RSRP), channel state information reference signal received power (CSI-RSRP), synchronization signal signal-to-interference-plus-noise ratio (SS-SINR), or channel state information signal-to-interference-plus-noise ratio (CSI-SINR).

[0131] It should be understood that the above-mentioned parameters are only examples of representing signal quality, and are not used to limit the protection scope of this application. In actual application, other parameters can also be used to represent signal quality, which is not limited.

[0132] 6、In this application, a cell can include a serving cell and / or a neighbor cell of the serving cell. The serving cell can be a current serving cell of the first device. The serving cell can be a Pcell, a secondary cell (Scell), or a primary secondary cell (PScell). The neighbor cell of the serving cell is a cell corresponding to an additional PCI, for example.

[0133] 7、In this application, "indicate" or "for indicating" can include explicit indication (or direct indication) and implicit indication (or indirect indication). When it is described that a certain information is for indicating A, it can include that the information explicitly indicates A or implicitly indicates A, and does not mean that A must be carried in the information.

[0134] The indication manner involved in the embodiments of this application should be understood as covering various methods that can enable the to-be-indicated party to know the to-be-indicated information. The to-be-indicated information can be sent as a whole, or can be sent separately into multiple sub-information, and the sending period and / or sending occasion of the sub-information can be the same or different, which is not limited.

[0135] The "information" in the embodiments of this application can be explicitly indicated, that is, directly indicated through signaling, or obtained according to a parameter indicated by signaling, in combination with other rules or in combination with other parameters or through derivation. Or it can be implicitly indicated, that is, obtained according to a rule or a relationship, or according to other parameters, or through derivation. It is not limited.

[0136] 8、In this application, the communication between different devices can mean direct communication between different devices (that is, without the need for other devices to transfer or forward), or can mean communication between different devices through other devices (that is, with the need for other devices to transfer or forward), or can mean that a functional unit inside a device communicates with other devices through another functional unit. Exemplarily, "sending information to a (terminal)" can be understood as that the destination of the information is the terminal, and can include directly or indirectly sending information to the terminal. "Receiving information from a (terminal)" can be understood as that the source of the information is the terminal, and can include directly or indirectly receiving information from the terminal. The information can be processed as necessary between the source and the destination of the information, such as format change, digital-to-analog conversion, amplification, filtering, etc., but the destination can understand the valid information from the source. Similar expressions in this application can be understood similarly, which will not be repeated here.

[0137] 9、In this application, the words "exemplary", "such as", "for example", and "e.g." are used to mean example, illustration, or instance, and do not imply or warrant that any feature is essential. It will be appreciated that any feature in one example can also be implemented in other examples.

[0138] 10、In this application, any two of program, instruction, and code can be replaced by each other.

[0139] 11、In this application, transmission can include sending and / or receiving.

[0140] 12、In this application, greater than can be replaced by greater than or equal to; and / or, less than can be replaced by less than or equal to.

[0141] 13、In this application, a group can include one or more cells. For example, a group can include one or more candidate cells. Also for example, a group can include one or more candidate cells and a serving cell.

[0142] A group can have other names, such as cell group, candidate cell group, resource group, measurement resource group, set, cell set, candidate cell set, resource set, or measurement resource set, as long as they have the same meaning, which are within the protection scope of this application.

[0143] 14、In this application, the identity of a reference signal is, for example, the identity of a resource or logical identity corresponding to the reference signal.

[0144] 15、In this application, the first event is an event for triggering a terminal to send an L1 measurement result to an access network device; or, the first event is an event for triggering a first device to send an L1 measurement result to a second device; or, the first event is an event for triggering the sending of a measurement report.

[0145] As described before, a terminal can report a measurement result based on an event. In this case, how the terminal reports a measurement report including the measurement result needs to be further studied. Exemplarily, in a scenario involving the movement of a terminal among multiple cells, the terminal can be configured with multiple candidate cells, for example, the terminal can be configured with up to 8 candidate cells. The terminal can measure multiple reference signals from each candidate cell. If it is determined according to the measurement results that the candidate cells satisfying the event are multiple candidate cells, the terminal can report the measurement results of the reference signals from the multiple candidate cells. How to sort the measurement results of the reference signals from the multiple candidate cells in the reported measurement report needs to be further studied. In addition, if the difference between the signal qualities of the reference signals from different candidate cells is large, how to improve the accuracy of the reported signal qualities of the reference signals from different candidate cells needs to be further studied.

[0146] Embodiments of the present application provide a communication method. FIG. 2 is a flow diagram of the communication method provided by embodiments of the present application. In FIG. 2, the method is illustrated by taking a first device and a second device as the execution subject of the interaction. The first device can be a terminal or a device (e.g., a module, a circuit, a chip (e.g., a modem chip, or a SoC chip or a SIP chip containing a modem core), a chip system, or a processor) in the terminal, or a logic node, a logic module, or software for implementing all or part of the terminal function. The second device can be an access network device or a device (e.g., a module, a circuit, a chip (e.g., a modem chip, or a SoC chip or a SIP chip containing a modem core), a chip system, or a processor) in the access network device, or a logic node, a logic module, or software for implementing all or part of the access network device function.

[0147] As shown in FIG. 2, the method includes the following steps.

[0148] S201: The first device receives reference signals from M cells, where M is an integer greater than 1.

[0149] The M cells can include cells operating in one or more access network devices. The M cells can all be candidate cells, or the M cells can include a serving cell and candidate cells. The reference signals from each of the M cells can be one or more.

[0150] The present application does not limit the specific way in which the first device receives the reference signals from the M cells. For example, the second device can send information indicating the reference signal resources of the M cells to the first device, and the first device can receive the reference signals from the M cells according to the reference signal resources of the M cells.

[0151] The present application does not limit the transmission manner of the reference signals from the M cells. For example, the reference signals from each of the M cells can be periodically transmitted, or can be aperiodically transmitted.

[0152] S202: The first device sends a measurement report; correspondingly, the second device receives the measurement report.

[0153] The measurement report can include measurement results of reference signals from M1 candidate cells, for example, the measurement report can include measurement results of part or all of the reference signals from the M1 candidate cells. M1 is a positive integer.

[0154] In the present application, the M1 candidate cells can belong to the M cells, where M1 can be less than or equal to M. For example, the M1 candidate cells can be the M cells, i.e., M1 = M. For another example, the M1 candidate cells can be part of the M cells, in which case M1 can be less than M.

[0155] The M1 candidate cells can be related to a first event for triggering the sending of the measurement report. The reference signal triggering the first event can be from the serving cell and / or the candidate cells. Optionally, the third cell is any of the M1 candidate cells. The third cell can satisfy at least one of the following conditions #1 to #3; correspondingly, the first device can select the third cell satisfying at least one of the following conditions #1 to #3 from the M candidate cells, thereby determining the M1 candidate cells.

[0156] Condition #1: The reference signal triggering the first event includes the reference signal from the third cell; in other words, the first event is triggered according to the measurement result of the reference signal from the third cell.

[0157] For example, the first event is that the signal quality of the reference signal from the candidate cell or the group to which the candidate cell belongs is greater than a second threshold. If the signal quality of the reference signal #1 from the candidate cell #1 received (or detected) by the first device is greater than the second threshold, the reference signal triggering the first event includes the reference signal #1, and the candidate cell #1 satisfies the condition #1.

[0158] For another example, the first event is that the signal quality of the reference signal from the serving cell or the group to which the serving cell belongs is less than the signal quality of the reference signal from the candidate cell or the group to which the candidate cell belongs. If the signal quality of the reference signal from the serving cell received (or detected) by the first device is less than the signal quality #1 of the reference signal #1 from the candidate cell #1, the reference signal triggering the first event includes the reference signal from the serving cell and the reference signal #1, and the candidate cell #1 satisfies the condition #1.

[0159] For another example, the first event is that the signal quality of the reference signal from the candidate cell or the group to which the candidate cell belongs is greater than the sum of the signal quality of the reference signal from the serving cell or the group to which the serving cell belongs and a first offset. If the signal quality #1 of the reference signal #1 from the candidate cell #1 received (or detected) by the first device is greater than the sum of the signal quality #2 of the reference signal from the serving cell and the first offset, the reference signal triggering the first event includes the reference signal from the serving cell and the reference signal #1, and the candidate cell #1 satisfies the condition #1.

[0160] For example, the first event is that the sum of the signal quality of a reference signal from a candidate cell or a group to which the candidate cell belongs and a second offset is greater than the signal quality of a reference signal from a serving cell or a group to which the serving cell belongs. If the signal quality of the reference signal #1 from the candidate cell #1 received (or detected) by the first device is signal quality #1, the signal quality of the reference signal from the serving cell is signal quality #2, and the sum of the signal quality #1 and the second offset is greater than the signal quality #2, the reference signals triggering the first event include the reference signal from the serving cell and the reference signal #1, and the candidate cell #1 satisfies the condition #1.

[0161] For example, the first event is that the signal quality of a reference signal from a serving cell or a group to which the serving cell belongs is less than a first threshold value, and the signal quality of a reference signal from a candidate cell or a group to which the candidate cell belongs is greater than a second threshold value. If the signal quality of the reference signal #1 from the candidate cell #1 received (or detected) by the first device is signal quality #1, the signal quality of the reference signal from the serving cell is signal quality #2, the signal quality #1 is greater than the second threshold value, and the signal quality #2 is less than the first threshold value, the reference signals triggering the first event include the reference signal from the serving cell and the reference signal #1, and the candidate cell #1 satisfies the condition #1.

[0162] The condition #2: the reference signal triggering the first event can be from the serving cell; in other words, the first event is triggered according to the measurement result of the reference signal from the serving cell. The third cell can be a cell determined based on the first event or the first rule.

[0163] In some implementations, the third cell can be a cell associated with the event configuration of the first event. For example, the first event is that the signal quality of a reference signal from a serving cell is less than a first threshold value. The cells associated with the event configuration of the first event include the candidate cell #1 and the candidate cell #2. If the signal quality of the reference signal from the serving cell received by the first device is less than the first threshold value, the reference signal from the serving cell is the reference signal triggering the first event, and the candidate cell #1 and the candidate cell #2 satisfy the condition #2.

[0164] In other implementations, the third cell can be a cell determined based on the first rule. The first rule can be pre-set, for example, specified by a protocol, or determined by the first device, or notified to the first device by another device (a second device or a core network device).

[0165] In some examples, the first event is that a signal quality of a reference signal from the serving cell is less than a first threshold. The first rule can be to select all candidate cells of the first apparatus. For example, if the candidate cells of the first apparatus include candidate cell #1 and candidate cell #2, and the signal quality of the reference signal from the serving cell received by the first apparatus is less than the first threshold, the reference signal from the serving cell is the reference signal that triggers the first event, and the candidate cell #1 and the candidate cell #2 satisfy the condition #2.

[0166] In other examples, the first event is that a signal quality of a reference signal from the serving cell is less than a first threshold. The first rule can be to select a candidate cell whose signal quality of the reference signal is greater than a second threshold. For example, if the signal quality of the reference signal from the candidate cell #1 and the candidate cell #2 is greater than the second threshold, and the signal quality of the reference signal from the serving cell received by the first apparatus is less than the first threshold, the reference signal from the serving cell is the reference signal that triggers the first event, and the candidate cell #1 and the candidate cell #2 satisfy the condition #2.

[0167] The condition #3: the reference signal that triggers the first event can be from a fifth cell; in other words, the first event is triggered according to a measurement result of a reference signal from the fifth cell. The third cell can be a candidate cell in a group to which the fifth cell belongs.

[0168] For example, the first event is that a signal quality of a reference signal from the serving cell or a group to which the serving cell belongs is less than a first threshold. If the signal quality of the reference signal from the serving cell received (or detected) by the first apparatus is less than the first threshold, and the serving cell belongs to the group #1, the reference signal from the serving cell is the reference signal that triggers the first event, and the candidate cells in the group #1 satisfy the condition #3.

[0169] For example, the first event is that a signal quality of a reference signal from the serving cell or a group to which the serving cell belongs is less than a first threshold. If the signal quality of the reference signal from the serving cell received (or detected) by the first apparatus is less than the first threshold, and the serving cell belongs to the group #1, the reference signal from the serving cell is the reference signal that triggers the first event, and the candidate cells in the group #1 satisfy the condition #3.

[0170] For example, the first event is that a signal quality of a reference signal from the serving cell or a group to which the serving cell belongs is less than a first threshold. If the signal quality of the reference signal from the serving cell received (or detected) by the first apparatus is less than the first threshold, and the serving cell belongs to the group #1, the reference signal from the serving cell is the reference signal that triggers the first event, and the candidate cells in the group #1 satisfy the condition #3.

[0171] For example, the first event is that the signal quality of a reference signal from a candidate cell or a group to which the candidate cell belongs is greater than the signal quality of a reference signal from a serving cell or a group to which the serving cell belongs. If the first device receives (or detects) the signal quality of a reference signal #1 from a candidate cell #1 as signal quality #1, the signal quality of a reference signal from a serving cell as signal quality #2, and the signal quality #1 is greater than the signal quality #2, the reference signal from the serving cell and the reference signal #1 are the reference signals that trigger the first event, and the candidate cells in the group #1 and the group #2 satisfy the condition #3.

[0172] For example, the first event is that the signal quality of a reference signal from a candidate cell or a group to which the candidate cell belongs is greater than the signal quality of a reference signal from a serving cell or a group to which the serving cell belongs. If the first device receives (or detects) the signal quality of a reference signal #1 from a candidate cell #1 as signal quality #1, the signal quality of a reference signal from a serving cell as signal quality #2, and the signal quality #1 is greater than the signal quality #2, the reference signal from the serving cell and the reference signal #1 are the reference signals that trigger the first event, and the candidate cells in the group #1 and the group #2 satisfy the condition #3.

[0173] For example, the first event is that the signal quality of a reference signal from a candidate cell or a group to which the candidate cell belongs is greater than the signal quality of a reference signal from a serving cell or a group to which the serving cell belongs. If the first device receives (or detects) the signal quality of a reference signal #1 from a candidate cell #1 as signal quality #1, the signal quality of a reference signal from a serving cell as signal quality #2, and the signal quality #1 is greater than the signal quality #2, the reference signal from the serving cell and the reference signal #1 are the reference signals that trigger the first event, and the candidate cells in the group #1 and the group #2 satisfy the condition #3.

[0174] In the measurement report, the measurement results of the reference signals from the M1 candidate cells are sorted according to at least one of the signal qualities of the reference signals from the M1 candidate cells or the relationships of the M1 candidate cells with the first event.

[0175] The first cell and the second cell are any two of the M1 candidate cells. The following describes the ordering of the measurement results of the reference signals from the M1 candidate cells in the measurement report, taking the first cell and the second cell as examples. In the measurement report, the measurement results of the reference signals from the first cell and the second cell can be ordered in a plurality of ways, such as at least one of the following ways a1 to a5.

[0176] Way a1: In a case where the signal quality of the first reference signal is greater than the signal quality of the second reference signal, the measurement result of the reference signal from the first cell is located before the measurement result of the reference signal from the second cell.

[0177] In some implementations, the first reference signal can be the reference signal with the greatest signal quality from the first cell, and the second reference signal can be the reference signal with the greatest signal quality from the second cell.

[0178] In some examples, the first reference signal is the reference signal with the greatest signal quality from the first cell, which can be understood as follows: the first reference signal can be the reference signal with the greatest signal quality from the first cell reported by the first device, or the first reference signal can be the reference signal with the greatest signal quality from the first cell in the measurement report. The second reference signal is the reference signal with the greatest signal quality from the second cell, which can be understood as follows: the second reference signal can be the reference signal with the greatest signal quality from the second cell reported by the first device, or the second reference signal can be the reference signal with the greatest signal quality from the second cell in the measurement report.

[0179] For example, if the first device receives reference signals #1 to #3 from the first cell, the order of the signal quality from large to small is reference signal #1 to reference signal #3, and the measurement report includes the measurement results of reference signals #2 to #3, the first reference signal can be reference signal #2. If the first device receives reference signals #4 to #6 from the second cell, the order of the signal quality from large to small is reference signal #4 to reference signal #6, and the measurement report includes the measurement results of reference signals #4 to #5, the second reference signal can be reference signal #4.

[0180] In some examples, the first reference signal can be a reference signal with the best signal quality from the first cell. In some examples, the second reference signal can be a reference signal with the best signal quality from the second cell. In some examples, the measurement result of the first reference signal and / or the measurement result of the second reference signal can be included in the measurement report. In some examples, the measurement result of the first reference signal and / or the measurement result of the second reference signal can not be included in the measurement report.

[0181] For example, if the first device receives reference signals #1 to #3 from the first cell, and the reference signal with the best signal quality among the reference signals #1 to #3 is the reference signal #1, the first reference signal can be the reference signal #1. If the first device receives reference signals #4 to #6 from the second cell, and the reference signal with the best signal quality among the reference signals #4 to #6 is the reference signal #4, the second reference signal can be the reference signal #4. The measurement result of the reference signal #1 and / or the measurement result of the reference signal #4 can be included in the measurement report. In some examples, the measurement result of the reference signal #1 and / or the measurement result of the reference signal #4 can not be included in the measurement report.

[0182] In some examples, the first reference signal can be a reference signal with a signal quality greater than a third threshold value from the first cell. In some examples, the second reference signal can be a reference signal with a signal quality greater than the third threshold value from the second cell. In some examples, the third threshold value can be pre-configured, for example, configured by a protocol. In some examples, the third threshold value can be determined by the first device. In some examples, the third threshold value can be notified to the first device by another device, for example, a core network device or a second device.

[0183] In some examples, the first reference signal can be a reference signal with a signal quality greater than a third threshold value from the first cell. In some examples, the second reference signal can be a reference signal with a signal quality greater than the third threshold value from the second cell. In some examples, the third threshold value can be pre-configured, for example, configured by a protocol. In some examples, the third threshold value can be determined by the first device. In some examples, the third threshold value can be notified to the first device by another device, for example, a core network device or a second device.

[0184] For example, if the reference signals received by the first device from the first cell include reference signal #1 to reference signal #3, the signal quality of reference signal #1 and reference signal #2 is greater than the third threshold, and the measurement report includes the measurement results of reference signal #2 to reference signal #3, the first reference signal can be reference signal #2. If the reference signals received by the first device from the second cell include reference signal #4 to reference signal #6, the signal quality of reference signal #4 is greater than the third threshold, and the measurement report includes the measurement results of reference signal #4 to reference signal #5, the second reference signal can be reference signal #4.

[0185] In some other examples, the first reference signal is a reference signal from the first cell whose signal quality is greater than the third threshold, which can be understood as that the first reference signal can be a reference signal received by the first device from the first cell whose signal quality is greater than the third threshold. The second reference signal is a reference signal from the second cell whose signal quality is greater than the third threshold, which can be understood as that the second reference signal can be a reference signal received by the first device from the second cell whose signal quality is greater than the third threshold. Optionally, in this example, the measurement result of the first reference signal and / or the measurement result of the second reference signal can be included in the measurement report, or can not be included in the measurement report.

[0186] For example, if the reference signals received by the first device from the first cell include reference signal #1 to reference signal #3, the signal quality of reference signal #1 is greater than the third threshold, the first reference signal can be reference signal #1. If the reference signals received by the first device from the second cell include reference signal #4 to reference signal #6, the signal quality of reference signal #4 is greater than the third threshold, the second reference signal can be reference signal #4. The measurement result of reference signal #1 and / or the measurement result of reference signal #4 can be included in the measurement report, or can not be included in the measurement report.

[0187] Optionally, in this implementation, if the reference signals from the first cell whose signal quality is greater than the third threshold are Q1 reference signals, Q1 is an integer greater than 1, the first reference signal can be one of the Q1 reference signals. For example, the first reference signal can be any one of the Q1 reference signals. For another example, the first reference signal can be the reference signal with the greatest signal quality among the Q1 reference signals. For yet another example, the first reference signal can be the reference signal with the smallest signal quality among the Q1 reference signals.

[0188] If the signal quality of the reference signal from the second cell is greater than a third threshold value, the second reference signal can be one of Q2 reference signals, Q2 being an integer greater than 1. For example, the second reference signal can be any one of the Q2 reference signals. Also for example, the second reference signal can be the reference signal with the greatest signal quality among the Q2 reference signals. Also for example, the second reference signal can be the reference signal with the least signal quality among the Q2 reference signals.

[0189] The ordering manner in the manner a1 is exemplified as follows.

[0190] For example, in the measurement report, the measurement results of the reference signals from the first cell include the measurement results of the reference signal #2 to the reference signal #3; the measurement results of the reference signals from the second cell include the measurement results of the reference signal #4 to the reference signal #5. If the signal quality of the first reference signal from the first cell is greater than the signal quality of the second reference signal from the second cell, as shown in Table 2A, in the measurement report, the measurement results of the reference signal #2 to the reference signal #3 can be located before the measurement results of the reference signal #4 to the reference signal #5.

[0191] Table 2A

[0192] Optionally, in the measurement report, the measurement results of the reference signals can include the identities of the reference signals and the corresponding measurement results (e.g. signal quality) of the reference signals. For example, Table 2A can be replaced by Table 2B. In Table 2B, the representation of the signal quality can refer to the description of the signal quality in the above term explanation part, and will not be described herein again.

[0193] Table 2B

[0194] It should be understood that Table 2A and Table 2B are only examples. In actual applications, more or less measurement results of the reference signals can be included.

[0195] Optionally, the manner a1 can also be understood as: the greater the signal quality of the candidate cell is, the earlier the measurement result of the corresponding reference signal in the measurement report is.

[0196] By the manner a1, the first device can accurately determine the order of the measurement results of the reference signals from the first cell and the measurement results of the reference signals from the second cell in the measurement report according to the signal quality of the first reference signal and the second reference signal.

[0197] Manner a2: in the case that the first average signal quality is greater than the second average signal quality, the measurement results of the reference signals from the first cell are located before the measurement results of the reference signals from the second cell.

[0198] The first average signal quality is an average signal quality of a reference signal from the first cell, and the second average signal quality is an average signal quality of a reference signal from the second cell.

[0199] In this application, the average signal quality of the reference signal can have various forms. The average signal quality of the reference signal is exemplified as follows.

[0200] In some examples, the average signal quality of the reference signal can be a linear average of the signal qualities of the reference signals. For example, the signal quality of the reference signal #1 is signal quality #1, and the signal quality of the reference signal #2 is signal quality #2. The average signal quality of the reference signal #1 to the reference signal #2 is (signal quality #1+signal quality #2) / 2.

[0201] In other examples, the average signal quality of the reference signal can be a weighted average of the signal qualities of the reference signals. The weight corresponding to each reference signal can be pre-configured, for example, specified by a protocol, or determined by the first device, or notified to the first device by another device (the second device or a core network device). For example, the signal quality of the reference signal #1 is signal quality #1, and the signal quality of the reference signal #2 is signal quality #2. The average signal quality of the reference signal #1 to the reference signal #2 is (w1*signal quality #1+w2*signal quality #2) / 2. Wherein, w1 is the weight corresponding to the reference signal #1, and w2 is the weight corresponding to the reference signal #2.

[0202] In yet other examples, the average signal quality of the reference signal can be calculated according to a second rule on the signal qualities of the reference signals. The second rule can be pre-configured, for example, specified by a protocol, or determined by the first device, or notified to the first device by another device (the second device or a core network device). For example, the second rule can be a first formula, which can be used to calculate the average signal quality of the reference signal from the signal qualities of the reference signals.

[0203] In yet other examples, the average signal quality of the reference signal can be calculated according to a first parameter configuration on the signal qualities of the reference signals. The first parameter configuration can be pre-configured, for example, specified by a protocol, or determined by the first device, or notified to the first device by another device (the second device or a core network device). For example, the first parameter configuration can be used to configure parameters in a second formula, which can be used to calculate the average signal quality of the reference signal from the signal qualities of the reference signals.

[0204] In some implementations, the first average signal quality is an average signal quality of reference signals from the first cell, which can be understood as: the first average signal quality can be an average signal quality of reference signals from the first cell reported by the first device, or the first average signal quality can be an average signal quality of reference signals from the first cell in a measurement report. The second average signal quality is an average signal quality of reference signals from the second cell, which can be understood as: the second average signal quality can be an average signal quality of reference signals from the second cell reported by the first device, or the second average signal quality can be an average signal quality of reference signals from the second cell in a measurement report.

[0205] For example, if the reference signals from the first cell received by the first device include: reference signal #1 to reference signal #3, and the measurement report includes measurement results of reference signal #2 to reference signal #3, the first average signal quality can be an average signal quality of reference signal #2 to reference signal #3. If the reference signals from the second cell received by the first device include: reference signal #4 to reference signal #6, and the measurement report includes measurement results of reference signal #4 to reference signal #5, the second average signal quality can be an average signal quality of reference signal #4 to reference signal #5.

[0206] In some other implementations, the first average signal quality is an average signal quality of reference signals from the first cell, which can be understood as: the first average signal quality can be an average signal quality of reference signals from the first cell received by the first device. The second average signal quality is an average signal quality of reference signals from the second cell, which can be understood as: the second average signal quality can be an average signal quality of reference signals from the second cell received by the first device. Measurement results of part or all of the reference signals from the first cell can be included in the measurement report, and measurement results of part or all of the reference signals from the second cell can be included in the measurement report.

[0207] For example, if the reference signals from the first cell received by the first device include: reference signal #1 to reference signal #3, the first average signal quality can be an average signal quality of reference signal #1 to reference signal #3. If the reference signals from the second cell received by the first device include: reference signal #4 to reference signal #6, the second average signal quality can be an average signal quality of reference signal #4 to reference signal #6. Measurement results of part or all of the reference signals from reference signal #1 to reference signal #3 can be included in the measurement report, and measurement results of part or all of the reference signals from reference signal #4 to reference signal #6 can be included in the measurement report.

[0208] The sorting manner in mode a2 is exemplified as follows.

[0209] For example, the measurement results of the reference signals from the first cell in the measurement report include: the measurement results of the reference signal #2 to the reference signal #3; the measurement results of the reference signals from the second cell include: the measurement results of the reference signal #4 to the reference signal #5. If the first average signal quality is greater than the second average signal quality, the measurement results of the reference signal #2 to the reference signal #3 can be located before the measurement results of the reference signal #4 to the reference signal #5 in the measurement report, as shown in Table 2A above.

[0210] Optionally, in the measurement report, the measurement results of the reference signals can include the reference signals and the signal qualities thereof. For example, Table 2A can be replaced by Table 2B above. In Table 2B, the representation of the signal quality can refer to the description of the signal quality in the above term explanation part, and will not be described again.

[0211] Optionally, the mode a2 can also be understood as: the greater the average signal quality of the candidate cell for the reference signal, the earlier the order of the measurement result of the corresponding reference signal in the measurement report.

[0212] Through the mode a2, the first device can accurately determine the order of the measurement results of the reference signals from the first cell and the measurement results of the reference signals from the second cell in the measurement report according to the first average signal quality and the second average signal quality.

[0213] Mode a3: in the case that the first cell belongs to a first group of candidate cells and the second cell belongs to a second group of candidate cells, the measurement result of the reference signal from the first cell is located before the measurement result of the reference signal from the second cell.

[0214] The first group of candidate cells can include the candidate cells related to the first event among the M1 candidate cells. The second group of candidate cells includes the candidate cells other than the first group of candidate cells among the M1 candidate cells; or the second group of candidate cells can include the candidate cells unrelated to the first event among the M1 candidate cells.

[0215] In some implementations, the first group of candidate cells can include the candidate cell that transmits the reference signal for triggering the first event among the M1 candidate cells; or the reference signal for triggering the first event includes the reference signal from each cell in the first group of candidate cells, and the cells in the first group of candidate cells belong to the M candidate cells; or the first group of candidate cells includes the candidate cell satisfying the above condition #1.

[0216] For example, if the M1 candidate cells include candidate cell #1 to candidate cell #3, and the reference signals triggering the first event include reference signal #1 from candidate cell #1 and reference signal #4 from candidate cell #2, the first group of candidate cells includes candidate cell #1 to candidate cell #2, and the second group of candidate cells includes candidate cell #3. In the measurement report, the measurement results of the reference signals from candidate cell #1 to candidate cell #2 are placed before the measurement result of the reference signal from candidate cell #3.

[0217] In some implementations, the first group of candidate cells includes the candidate cells of the M1 candidate cells associated with the reference signals triggering the first event. Optionally, the association between the reference signals and the candidate cells can be configured by the second device.

[0218] For example, if the M1 candidate cells include candidate cell #1 to candidate cell #3, the reference signals triggering the first event include reference signal #1, and reference signal #1 is associated with candidate cell #1 to candidate cell #2, the first group of candidate cells includes candidate cell #1 to candidate cell #2, and the second group of candidate cells includes candidate cell #3. In the measurement report, the measurement results of the reference signals from candidate cell #1 to candidate cell #2 are placed before the measurement result of the reference signal from candidate cell #3.

[0219] By way of a3, the first device can accurately determine the order of the measurement results of the reference signals from the first cell and the measurement results of the reference signals from the second cell in the measurement report according to the relationship between the candidate cells and the first event.

[0220] a4: In the case where the first cell belongs to the third group of candidate cells and the second cell belongs to the fourth group of candidate cells, the order of the measurement results of the reference signals from the first cell and the measurement results of the reference signals from the second cell is determined according to the group identifiers of the third group of candidate cells and the fourth group of candidate cells; accordingly, the first device can determine the order of the measurement results of the reference signals from the first cell and the measurement results of the reference signals from the second cell according to the group identifiers of the third group of candidate cells and the fourth group of candidate cells.

[0221] In some implementations, in the case where the group identifier of the third group of candidate cells is smaller than the group identifier of the fourth group of candidate cells, the measurement results of the reference signals from the first cell are placed before the measurement results of the reference signals from the second cell. For example, in the case where the group identifier of the third group of candidate cells is 1 and the group identifier of the fourth group of candidate cells is 2, the measurement results of the reference signals from the first cell are placed before the measurement results of the reference signals from the second cell.

[0222] In some implementations, the measurement result of the reference signal from the first cell is located before the measurement result of the reference signal from the second cell in case that the group identity of the third group of candidate cells is greater than the group identity of the fourth group of candidate cells. For example, in case that the group identity of the third group of candidate cells is 2 and the group identity of the fourth group of candidate cells is 1, the measurement result of the reference signal from the first cell is located before the measurement result of the reference signal from the second cell.

[0223] The candidate cells included in each group of candidate cells and the group identity of each group of candidate cells can be pre-configured, for example, configured by a protocol, or determined by the first device, or notified to the first device by another device, for example, the second device or a core network device.

[0224] According to the group identity of the third group of candidate cells and the fourth group of candidate cells, the first device can accurately determine the order of the measurement result of the reference signal from the first cell and the measurement result of the reference signal from the second cell in the measurement report by way a4.

[0225] Way a5: the order of the measurement result of the reference signal from the first cell and the measurement result of the reference signal from the second cell is determined according to the identity of the first cell and the identity of the second cell; accordingly, the first device can determine the order of the measurement result of the reference signal from the first cell and the measurement result of the reference signal from the second cell according to the identity of the first cell and the identity of the second cell.

[0226] In some implementations, the measurement result of the reference signal from the first cell is located before the measurement result of the reference signal from the second cell in case that the identity of the first cell is less than the identity of the second cell. For example, in case that the identity of the first cell is 1 and the identity of the second cell is 2, the measurement result of the reference signal from the first cell is located before the measurement result of the reference signal from the second cell.

[0227] In some implementations, the measurement result of the reference signal from the first cell is located before the measurement result of the reference signal from the second cell in case that the identity of the first cell is greater than the identity of the second cell. For example, in case that the identity of the first cell is 2 and the identity of the second cell is 1, the measurement result of the reference signal from the first cell is located before the measurement result of the reference signal from the second cell.

[0228] In the present application, the identity of a cell can have various forms, for example, a logical identity configured for the cell, a PCI, an identity associated with the configuration information of a candidate cell, or an identity associated with a measurement resource set.

[0229] According to the manner a5, the first device can accurately determine the order of the measurement result of the reference signal from the first cell and the measurement result of the reference signal from the second cell in the measurement report according to the identities of the first cell and the second cell.

[0230] Any two of the manners a1 to a5 can be independent or can be combined with each other.

[0231] In some examples, the manner a1 can be combined with the manner a3. For example, if the M1 candidate cells include candidate cell #1 to candidate cell #3, and the reference signals triggering the first event include reference signal #1 from the candidate cell #1 and reference signal #4 from the candidate cell #2, the first group of candidate cells includes the candidate cell #1 to the candidate cell #2, and the second group of candidate cells includes the candidate cell #3. In the measurement report, the measurement result of the reference signal from the candidate cell #1 to the candidate cell #2 is located before the measurement result of the candidate cell #3. If the reference signal with the maximum signal quality from the candidate cell #1 is the reference signal #1, and the reference signal with the maximum signal quality from the candidate cell #2 is the reference signal #4, and the signal quality of the reference signal #1 is greater than the signal quality of the reference signal #2, in the measurement report, the measurement result of the reference signal from the candidate cell #1 is located before the measurement result of the reference signal from the candidate cell #2.

[0232] In other examples, the manner a2 can be combined with the manner a3. For example, if the M1 candidate cells include candidate cell #1 to candidate cell #3, and the reference signals triggering the first event include reference signal #1 from the candidate cell #1 and reference signal #4 from the candidate cell #2, the first group of candidate cells includes the candidate cell #1 to the candidate cell #2, and the second group of candidate cells includes the candidate cell #3. In the measurement report, the measurement result of the reference signal from the candidate cell #1 to the candidate cell #2 is located before the measurement result of the candidate cell #3. If the average signal quality of the reference signal from the candidate cell #1 is the average signal quality #1, and the average signal quality of the reference signal from the candidate cell #2 is the average signal quality #2, and the average signal quality #1 is greater than the average signal quality #2, in the measurement report, the measurement result of the reference signal from the candidate cell #1 is located before the measurement result of the reference signal from the candidate cell #2.

[0233] In some possible manners, which manner is used to sort the measurement result of the reference signal from the first cell and the measurement result of the reference signal from the second cell can be pre-set, for example, specified by a protocol, or can be determined by the first device, or can be notified to the first device by other devices, for example, the second device and the core network device.

[0234] Optionally, the measurement results of the reference signals from the M1 candidate cells further comprise an identity of each of the M1 candidate cells. For example, the M1 candidate cells comprise candidate cell #1 to candidate cell #2. In the measurement report, the measurement results of the reference signals from the candidate cell #1 comprise the identity of the candidate cell #1 and the measurement results of the reference signals #2 to #3; the measurement results of the reference signals from the candidate cell #2 comprise the identity of the candidate cell #2 and the measurement results of the reference signals #4 to #5. If the measurement results of the reference signals from the candidate cell #1 are placed before the measurement results of the reference signals from the candidate cell #2 in the measurement report, the measurement report can be as shown in Table 3A.

[0235] Table 3A

[0236] Optionally, in the measurement report, the measurement results of the reference signals comprise identities of the reference signals and the corresponding measurement results (e.g. signal quality). For example, Table 3A can be replaced by Table 3B. In Table 3B, the representation of the signal quality can refer to the description of the signal quality in the above term explanation section, and will not be repeated here.

[0237] Table 3B

[0238] It should be understood that Table 3A and Table 3B are only examples. In actual applications, more or fewer identities of cells can be included, and more or fewer measurement results of reference signals can be included.

[0239] In the method, the measurement results of the reference signals from the M1 candidate cells further comprise an identity of each of the M1 candidate cells. In this way, the second device can accurately determine from which candidate cell the measurement result is from according to the identity of each candidate cell.

[0240] In some possible manners, the first cell and the second cell are any two of the M1 candidate cells, and the method shown in Figure 2 further comprises S203 and S204:

[0241] S203: The second device sends first information; correspondingly, the first device receives the first information.

[0242] The first information is used to indicate the first number, and the first number is equal to the number of the reference signals corresponding to the measurement results of the reference signals from the first cell in the measurement report; in other words, the first information is used to indicate the number of the reference signals corresponding to the measurement results of the reference signals from the first cell in the measurement report. Correspondingly, the first device can select the first number of the reference signals from the reference signals from the first cell, and include the measurement results of the first number of the reference signals in the measurement report.

[0243] For example, if the first quantity indicated by the first information is 2, the measurement report can include measurement results of 2 reference signals from the first cell. If the reference signals from the first cell include reference signal #1 to reference signal #3, the first device can select 2 reference signals from reference signal #1 to reference signal #3. If the 2 reference signals selected by the first device are reference signal #1 to reference signal #2, the first device can include measurement results of reference signal #1 to reference signal #2 in the measurement report.

[0244] As described above, the first device can select the first quantity of reference signals from the reference signals from the first cell in various manners, such as any one of manner b1 to manner b3.

[0245] Manner b1: The first device can randomly select the first quantity of reference signals from the reference signals from the first cell.

[0246] For example, in the case where the reference signals from the first cell include reference signal #1 to reference signal #3 and the first quantity is 2, the first device can randomly select 2 reference signals from reference signal #1 to reference signal #3.

[0247] Manner b2: The first device can select the first quantity of reference signals with the largest signal quality from the reference signals from the first cell.

[0248] For example, in the case where the reference signals from the first cell include reference signal #1 to reference signal #3, the order of the signal quality from large to small is: reference signal #1 to reference signal #3, and the first quantity is 2, the 2 reference signals selected by the first device from reference signal #1 to reference signal #3 include: reference signal #1 to reference signal #2.

[0249] Manner b3: The first device can select the first quantity of reference signals with signal quality greater than a fourth threshold value from the reference signals from the first cell. The fourth threshold value can be pre-set, such as specified by a protocol, or determined by the first device, or notified to the first device by another device (such as a core network device or a second device).

[0250] For example, in the case where the reference signals from the first cell include reference signal #1 to reference signal #3, the signal quality of reference signal #1 to reference signal #2 is greater than the fourth threshold value, and the first quantity is 2, the 2 reference signals selected by the first device from reference signal #1 to reference signal #3 include: reference signal #1 to reference signal #2.

[0251] The first information can be carried in a conventional message or a new message without limitation. For example, the first information can be carried in an RRC message, a MAC CE, or a DCI. For another example, the first information can be carried in a ReportConfig information, such as an event-triggered ReportConfig information.

[0252] S204: The second device sends the second information; and correspondingly, the first device receives the second information.

[0253] The second information is used to indicate the second quantity, and the second quantity is equal to the quantity of reference signals corresponding to the measurement results of the reference signals from the second cell in the measurement report. In other words, the second information is used to indicate the quantity of reference signals corresponding to the measurement results of the reference signals from the second cell in the measurement report. Correspondingly, the first device can select the second quantity of reference signals from the reference signals from the second cell, and include the measurement results of the second quantity of reference signals in the measurement report.

[0254] The first quantity and the second quantity can be the same or different.

[0255] The specific content of S204 can refer to S203, except that the second information is replaced by the first information, the first quantity is replaced by the second quantity, and the first cell is replaced by the second cell, which will not be described herein again.

[0256] Optionally, S203 and S204 can be before S202; the order of any one of S203 and S204 and S201 is not limited in the present application; the order of S203 and S204 is not limited in the present application. The first information and the second information can be carried in the same message or different messages without limitation.

[0257] In this way, in the measurement report, the quantity of reference signals corresponding to the measurement results of the reference signals from each candidate cell is configurable, and the quantity of reference signals corresponding to the measurement results of the reference signals from different cells can be the same or different. In this way, the second device can flexibly manage the measurement report reported by the first device. For example, for the candidate cell related to the first event, the second device can configure the first device to report the measurement results of more reference signals; for the candidate cell irrelevant to the first event, the second device can configure the first device to report the measurement results of less reference signals, thereby improving the efficiency and accuracy of the mobility management of the second device according to the measurement results.

[0258] In some possible implementations, the M cells further include a serving cell; in other words, the M cells include the M1 candidate cells and the serving cell. The M1 candidate cells and the serving cell can be part or all of the M cells. The measurement report in S202 further includes measurement results of reference signals from the serving cell; in other words, the measurement report includes measurement results of reference signals from the M1 candidate cells and measurement results of reference signals from the serving cell.

[0259] The specific content of the M1 candidate cells can be referred to the description of the M1 candidate cells in S202, and the specific content of the measurement results of reference signals from the M1 candidate cells can be referred to the description of the measurement results of reference signals from the M1 candidate cells in S202, which will not be repeated here.

[0260] The measurement results of reference signals from the serving cell in the measurement report are described as follows.

[0261] In some implementations, the measurement report includes measurement results of part or all of reference signals from the serving cell. For example, the reference signals from the serving cell include reference signal #7 to reference signal #9. The measurement report includes measurement results of part or all of reference signal #7 to reference signal #9.

[0262] In this way, the second device can obtain the measurement results of reference signals from the serving cell, and thus can perform more effective mobility management accordingly.

[0263] As described above, the measurement report includes measurement results of reference signals from the M1 candidate cells and measurement results of reference signals from the serving cell. The measurement results of reference signals from the M1 candidate cells and the measurement results of reference signals from the serving cell in the measurement report can be sorted in various ways, for example, at least one of the following ways c1 to c3.

[0264] Way c1: The measurement results of reference signals from the serving cell are located before the measurement results of reference signals from the M1 candidate cells.

[0265] For example, in the measurement report, the measurement results of reference signals from the serving cell include measurement results of reference signal #7 to reference signal #8; the measurement results of reference signals from the candidate cell #1 in the M1 candidate cells include measurement results of reference signal #2 to reference signal #3; and the measurement results of reference signals from the candidate cell #2 in the M1 candidate cells include measurement results of reference signal #4 to reference signal #5. The measurement results of reference signal #7 to reference signal #8 can be located before the measurement results of reference signal #2 to reference signal #5.

[0266] By way of c1, the first apparatus can determine the order of the measurement results of the reference signals from the M1 candidate cells and the measurement result of the reference signal from the serving cell according to the sources of the reference signals.

[0267] Way c2: the third cell is any one of the M1 candidate cells. The order of the measurement result of the reference signal from the third cell and the measurement result of the reference signal from the serving cell is determined according to the signal quality of the third reference signal from the third cell and the fourth reference signal from the serving cell; correspondingly, the first apparatus can determine the order of the measurement result of the reference signal from the third cell and the measurement result of the reference signal from the serving cell according to the signal quality of the third reference signal and the fourth reference signal.

[0268] The third reference signal and the fourth reference signal will be described first.

[0269] In some implementations, the third reference signal is the reference signal from the third cell with the largest signal quality, and the fourth reference signal is the reference signal from the serving cell with the largest signal quality. For details, refer to the description of "the first reference signal can be the reference signal from the first cell with the largest signal quality, and the second reference signal can be the reference signal from the second cell with the largest signal quality" in way a1, except that the first reference signal is replaced by the third reference signal, the first cell is replaced by the third cell, the second reference signal is replaced by the fourth reference signal, and the second cell is replaced by the serving cell, which will not be described herein again.

[0270] In other implementations, the third reference signal can be the reference signal from the third cell with the signal quality greater than a third threshold, and the fourth reference signal can be the reference signal from the serving cell with the signal quality greater than the third threshold. For details, refer to the description of "the first reference signal can be the reference signal from the first cell with the signal quality greater than a third threshold, and the second reference signal can be the reference signal from the second cell with the signal quality greater than the third threshold" in way a1, except that the first reference signal is replaced by the third reference signal, the first cell is replaced by the third cell, the second reference signal is replaced by the fourth reference signal, and the second cell is replaced by the serving cell, which will not be described herein again.

[0271] In the mode c2, in the case that the signal quality of the third reference signal is greater than the signal quality of the fourth reference signal, the measurement result of the reference signal from the third cell is located before the measurement result of the reference signal from the serving cell; and / or, in the case that the signal quality of the third reference signal is less than the signal quality of the fourth reference signal, the measurement result of the reference signal from the third cell is located after the measurement result of the reference signal from the serving cell. The mode c2 can also be understood as: the greater the signal quality of the cell of the reference signal is, the earlier the order of the measurement result of the corresponding reference signal in the measurement report is.

[0272] For example, in the measurement report, the measurement result of the reference signal from the serving cell includes the measurement result of the reference signal #7 to the reference signal #8; the measurement result of the reference signal from the third cell includes the measurement result of the reference signal #2 to the reference signal #3. In the case that the signal quality of the third reference signal from the third cell is greater than the signal quality of the fourth reference signal from the serving cell, the measurement result of the reference signal #2 to the reference signal #3 is located before the measurement result of the reference signal #7 to the reference signal #8.

[0273] For example, in the measurement report, the measurement result of the reference signal from the serving cell includes the measurement result of the reference signal #7 to the reference signal #8; the measurement result of the reference signal from the third cell includes the measurement result of the reference signal #2 to the reference signal #3. In the case that the signal quality of the third reference signal from the third cell is greater than the signal quality of the fourth reference signal from the serving cell, the measurement result of the reference signal #2 to the reference signal #3 is located before the measurement result of the reference signal #7 to the reference signal #8.

[0274] By the mode c2, the first device can accurately determine the order of the measurement result of the reference signal from the third cell and the measurement result of the reference signal from the serving cell in the measurement report according to the signal quality of the third reference signal and the fourth reference signal, so as to accurately determine the order of the measurement result of the reference signal from the M1 candidate cells and the measurement result of the reference signal from the serving cell in the measurement report.

[0275] The mode c3: the third cell is any one of the M1 candidate cells. The order of the measurement result of the reference signal from the third cell and the measurement result of the reference signal from the serving cell is determined according to the third average signal quality and the fourth average signal quality; correspondingly, the first device can determine the order of the measurement result of the reference signal from the third cell and the measurement result of the reference signal from the serving cell according to the third average signal quality and the fourth average signal quality.

[0276] The third average signal quality is an average signal quality of a reference signal from the third cell, and the fourth average signal quality is an average signal quality of a reference signal from the serving cell. For details, refer to the description of the first average signal quality and the second average signal quality in the manner a2, and replace the first average signal quality with the third average signal quality, replace the first cell with the third cell, replace the second average signal quality with the fourth average signal quality, and replace the second cell with the serving cell. Details are not described herein again.

[0277] In the manner c3, in a case where the third average signal quality is greater than the fourth average signal quality, the measurement result of the reference signal from the third cell is located before the measurement result of the reference signal from the serving cell; and / or, in a case where the third average signal quality is less than the fourth average signal quality, the measurement result of the reference signal from the third cell is located after the measurement result of the reference signal from the serving cell. The manner c3 can also be understood as: the greater the average signal quality of a cell is, the earlier the measurement result of the corresponding reference signal is in the measurement report.

[0278] For example, in the measurement report, the measurement result of the reference signal from the serving cell includes the measurement results of the reference signal #7 to the reference signal #8; and the measurement result of the reference signal from the third cell includes the measurement results of the reference signal #2 to the reference signal #3. In a case where the average signal quality of the reference signal from the third cell is greater than the average signal quality of the reference signal from the serving cell, the measurement results of the reference signal #2 to the reference signal #3 are located before the measurement results of the reference signal #7 to the reference signal #8.

[0279] For another example, in the measurement report, the measurement result of the reference signal from the serving cell includes the measurement results of the reference signal #7 to the reference signal #8; and the measurement result of the reference signal from the third cell includes the measurement results of the reference signal #4 to the reference signal #5. In a case where the average signal quality of the reference signal from the third cell is less than the average signal quality of the reference signal from the serving cell, the measurement results of the reference signal #4 to the reference signal #5 are located after the measurement results of the reference signal #7 to the reference signal #8.

[0280] By the manner c3, the first device can accurately determine the order of the measurement result of the reference signal from the third cell and the measurement result of the reference signal from the serving cell in the measurement report according to the third average signal quality and the fourth average signal quality, so as to accurately determine the order of the measurement result of the reference signal from the M1 candidate cells and the measurement result of the reference signal from the serving cell in the measurement report.

[0281] In some possible manners, the manner in which the measurement results of the reference signals from the M1 candidate cells and the measurement result of the reference signal from the serving cell are sorted can be preconfigured, for example, specified in a protocol, determined by the first device, or notified to the first device by another device (for example, the second device or a core network device).

[0282] Optionally, the measurement result of the reference signal from the serving cell further includes an identifier of the serving cell. For example, as shown in Table 4A, in the measurement report, the measurement result of the reference signal from the serving cell includes the identifier of the serving cell and the measurement results of the reference signals #7 to #8.

[0283] Table 4A

[0284] Optionally, in the measurement report, the measurement result of each reference signal can include an identifier of the reference signal and a corresponding measurement result (for example, a signal quality) of the reference signal. For example, Table 4A can be replaced by Table 4B. In Table 4B, the signal quality can be represented as described above in the term explanation section, and thus is not described herein again.

[0285] Table 4B

[0286] It should be understood that Table 4A and Table 4B are merely examples. In actual applications, more or fewer measurement results of reference signals can be included.

[0287] In the method, the measurement result of the reference signal from the serving cell further includes an identifier of the serving cell. In this way, the second device can accurately determine which measurement result of the reference signal is from the serving cell according to the identifier of the serving cell.

[0288] In some possible manners, the method shown in FIG. 2 further includes S205:

[0289] S205: The second device sends third information; and correspondingly, the first device receives the third information.

[0290] The third information is used to indicate whether the first device reports the measurement result of the reference signal from the serving cell. Optionally, in a case where the third information indicates that the first device reports the measurement result of the reference signal from the serving cell, the measurement report in S202 can include the measurement result of the reference signal from the serving cell.

[0291] In some implementations, the third information can be used to indicate that the first device reports the measurement result of the reference signal from the serving cell in a case where the serving cell is related to a first event. Correspondingly, in the case where the serving cell is related to the first event, the measurement report in S202 further includes the measurement result of the reference signal from the serving cell.

[0292] In the case that the serving cell is related to the first event, the reference signal triggering the first event can comprise a reference signal from the serving cell or a group to which the serving cell belongs.

[0293] For example, in the case that the first event is that a signal quality of a reference signal from the serving cell is less than a signal quality of a reference signal from the candidate cell, the reference signal triggering the first event comprises the reference signal from the serving cell, and the serving cell is related to the first event.

[0294] For another example, in the case that the first event is that a signal quality of a reference signal from the serving cell or a group to which the serving cell belongs is less than a first threshold, the reference signal triggering the first event comprises the reference signal from the serving cell or the group to which the serving cell belongs, and the serving cell is related to the first event.

[0295] For yet another example, in the case that the first event is that a signal quality of a reference signal from the candidate cell or a group to which the candidate cell belongs is greater than a sum of a signal quality of a reference signal from the serving cell or a group to which the serving cell belongs and a first offset, the reference signal triggering the first event comprises the reference signal from the serving cell or the group to which the serving cell belongs, and the serving cell is related to the first event.

[0296] For yet another example, in the case that the first event is that a sum of a signal quality of a reference signal from the candidate cell or a group to which the candidate cell belongs and a second offset is greater than a signal quality of a reference signal from the serving cell or a group to which the serving cell belongs, the reference signal triggering the first event comprises the reference signal from the serving cell or the group to which the serving cell belongs, and the serving cell is related to the first event.

[0297] For yet another example, in the case that the first event is that a signal quality of a reference signal from the serving cell or a group to which the serving cell belongs is less than a first threshold, and a signal quality of a reference signal from the candidate cell or a group to which the candidate cell belongs is greater than a second threshold, the reference signal triggering the first event comprises the reference signal from the serving cell or the group to which the serving cell belongs, and the serving cell is related to the first event.

[0298] By the implementation, in the case that the serving cell is related to the first event, the first device reports the measurement result of the reference signal from the serving cell. In the case that the serving cell is not related to the first event, the first device can not report the measurement result of the reference signal from the serving cell, so that the reporting overhead can be reduced, and the waste of reporting resources can be avoided or reduced.

[0299] In some other implementations, the third information can be used to indicate that the first device reports measurement results of reference signals from the serving cell; or the third information can be used to indicate that the first device reports measurement results of reference signals from the serving cell regardless of whether the serving cell is related to the first event. Correspondingly, the measurement report in S202 further includes measurement results of reference signals from the serving cell.

[0300] Optionally, the third information can be carried in the reporting configuration information, such as the event-triggered reporting configuration information.

[0301] Through this implementation, the second device can flexibly configure the first device to report measurement results of reference signals from the serving cell through the third information.

[0302] Optionally, in the case where the third information indicates that the first device reports measurement results of reference signals from the serving cell, the third information can further be used to indicate that the first device reports measurement results of N reference signals from the serving cell, N being a positive integer; or the third information can indicate N, N being the number of reference signals corresponding to the measurement results of reference signals from the serving cell reported by the first device; or the third information can indicate the number of reference signals corresponding to the measurement results of reference signals from the serving cell in the measurement report; or the third information can be used to indicate a third number, the third number being equal to the number of reference signals corresponding to the measurement results of reference signals from the serving cell in the measurement report. For specific content, refer to the description of "the first information is used to indicate the first number" in S203, except that the first information is replaced by the third information, the first number is replaced by the third number, and the first cell is replaced by the serving cell, which will not be repeated here.

[0303] Optionally, the N reference signals from the serving cell can be part or all of the reference signals from the serving cell. For example, the N reference signals can be N reference signals with the best signal quality from the serving cell. For another example, the N reference signals can be N reference signals with a signal quality greater than a set threshold from the serving cell. For another example, the N reference signals can be N reference signals indicated by the second device.

[0304] Through this way, the number of reference signals corresponding to the measurement results of reference signals from the serving cell in the measurement report is configurable. In this way, the second device can flexibly manage the measurement report reported by the first device. For example, for the serving cell related to the first event, the second device can configure the first device to report measurement results of more reference signals; for the serving cell not related to the first event, the second device can configure the first device to report measurement results of less reference signals, thereby improving the efficiency and accuracy of the mobility management of the second device according to the measurement results.

[0305] The third information can be carried in a conventional message or a new message. For example, the third information can be carried in an RRC message, a MAC CE, or a DCI.

[0306] Optionally, S205 can be performed before S202. The order of S205 and S201 is not limited in the present application. The order of any one of S203 and S204 and S205 is not limited in the present application. Any two of the first information, the second information, and the third information can be carried in the same message or different messages.

[0307] In some possible manners, it can be preconfigured (for example, specified in a protocol) that the measurement report in S202 further includes a measurement result of a reference signal from the serving cell.

[0308] In some implementations, it can be preconfigured (for example, specified in a protocol) that, in the case where the first event is related to the serving cell, the measurement report in S202 further includes a measurement result of a reference signal from the serving cell. Details of the case where the first event is related to the serving cell can be referred to the description of the case where the first event is related to the serving cell in S205, which will not be repeated here.

[0309] With this implementation, the first device reports the measurement result of the reference signal from the serving cell only in the case where the serving cell is related to the first event. In the case where the serving cell is not related to the first event, the first device can not report the measurement result of the reference signal from the serving cell, thereby reducing the reporting overhead and avoiding or reducing the waste of reporting resources.

[0310] In some other implementations, it can be preconfigured (for example, specified in a protocol) that the first device reports the measurement result of the reference signal from the serving cell regardless of whether the serving cell is related to the first event.

[0311] In this manner, it can be preconfigured (for example, specified in a protocol) that the measurement report in S202 further includes a measurement result of a reference signal from the serving cell. In this way, the second device does not need to instruct the first device to report the measurement result of the reference signal from the serving cell, thereby saving signaling overhead.

[0312] In some possible manners, the measurement report includes measurement results of reference signals from M2 cells, where M2 is an integer greater than or equal to M1. The M2 cells can be part or all of the M cells. The M2 cells can be the M1 candidate cells, or the M2 cells can include the M1 candidate cells and the serving cell.

[0313] The fourth cell is any one of the M2 cells. The measurement report in S202 can include measurement results of N1 reference signals from the fourth cell, N1 being a positive integer. The measurement results of the N1 reference signals can be ordered in the measurement report in a number of ways, such as at least one of ways d1-d4.

[0314] Way d1: The measurement results of the N1 reference signals are arranged consecutively, and are ordered in a descending order of signal quality of the reference signals.

[0315] For example, if the N1 reference signals include reference signal #2 and reference signal #3, and the signal quality of reference signal #3 is greater than that of reference signal #2, the measurement results of the N1 reference signals in the measurement report can be as shown in Table 5A.

[0316] Table 5A

[0317] Optionally, in the measurement report, the measurement results of the reference signals can include the identities of the reference signals and their corresponding measurement results (e.g., signal quality). For example, Table 5A can be replaced by Table 5B. In Table 5B, the representation of the signal quality can refer to the description of the signal quality in the above Terminology section, and will not be repeated here.

[0318] Table 5B

[0319] It should be understood that Table 5A and Table 5B are merely examples. In actual applications, more or fewer measurement results of the reference signals can be included.

[0320] According to way d1, the first device can accurately determine the order of the measurement results of the N1 reference signals from the fourth cell in the measurement report according to the signal quality of the N1 reference signals.

[0321] Way d2: The measurement results of the N1 reference signals are arranged consecutively, and are ordered in an ascending order of signal quality of the reference signals.

[0322] For example, if the N1 reference signals include reference signal #2 and reference signal #3, and the signal quality of reference signal #3 is greater than that of reference signal #2, the measurement results of the N1 reference signals in the measurement report can be as shown in Table 6A.

[0323] Table 6A

[0324] Optionally, in the measurement report, the measurement results of the reference signals can include the identities of the reference signals and their corresponding measurement results (e.g., signal quality). For example, Table 6A can be replaced by Table 6B. In Table 6B, the representation of the signal quality can refer to the description of the signal quality in the above terminology explanation section, and will not be repeated here.

[0325] Table 6B

[0326] It should be understood that Table 6A and Table 6B are only examples. In actual applications, more or fewer measurement results of the reference signals can be included.

[0327] According to mode d2, the first device can accurately determine the order of the measurement results of the N1 reference signals from the fourth cell in the measurement report according to the signal quality of the N1 reference signals.

[0328] Mode d3: The measurement results of the N1 reference signals are arranged consecutively, and are sorted in descending order according to the identity of the reference signals.

[0329] For example, if the N1 reference signals include reference signal #2 to reference signal #3, and the identity of reference signal #3 is greater than the identity of reference signal #2, the measurement results of the N1 reference signals in the measurement report can be as shown in Table 5A or Table 5B above.

[0330] According to mode d3, the first device can accurately determine the order of the measurement results of the N1 reference signals from the fourth cell in the measurement report according to the identity of the N1 reference signals.

[0331] Mode d4: The measurement results of the N1 reference signals are arranged consecutively, and are sorted in ascending order according to the identity of the reference signals.

[0332] For example, if the N1 reference signals include reference signal #2 to reference signal #3, and the identity of reference signal #3 is greater than the identity of reference signal #2, the measurement results of the N1 reference signals in the measurement report can be as shown in Table 6A or Table 6B above.

[0333] According to mode d4, the first device can accurately determine the order of the measurement results of the N1 reference signals from the fourth cell in the measurement report according to the identity of the N1 reference signals.

[0334] In some possible manners, the manner in which the measurement results of the N1 reference signals are sorted can be pre-configured, for example, specified in a protocol, or determined by the first device, or notified to the first device by another device, for example, the second device or a core network device. Optionally, the manner in which the measurement results of the N1 reference signals are sorted can be the same or different for different cells in the M2 cells.

[0335] By the above method, the first device can determine the order of the measurement results of the reference signals from the M2 cells in the measurement report, which is exemplified as follows.

[0336] In a first example, the M2 cells are the M1 candidate cells, and the first device can determine the order of the measurement results of the reference signals from the M2 cells in the measurement report according to the manner a1 and the manner d1. For example, the M1 candidate cells include candidate cell #1 to candidate cell #2. In the measurement report, the measurement results of the reference signals from the candidate cell #1 include the identifier of the candidate cell #1 and the measurement results of reference signal #2 to reference signal #3, and the measurement results of the reference signals from the candidate cell #2 include the identifier of the candidate cell #2 and the measurement results of reference signal #4 to reference signal #5. If the order of the signal quality from large to small is reference signal #3, reference signal #4, reference signal #2, and reference signal #5, the measurement report can be as shown in Table 7A.

[0337] Table 7A

[0338] In a second example, the M2 cells are the M1 candidate cells, and the first device can determine the order of the measurement results of the reference signals from the M2 cells in the measurement report according to the manner a2 and the manner d1. For example, the M1 candidate cells include candidate cell #1 to candidate cell #2. In the measurement report, the measurement results of the reference signals from the candidate cell #1 include the identifier of the candidate cell #1 and the measurement results of reference signal #2 to reference signal #3, and the measurement results of the reference signals from the candidate cell #2 include the identifier of the candidate cell #2 and the measurement results of reference signal #4 to reference signal #5. If the order of the signal quality from large to small is reference signal #3, reference signal #4, reference signal #5, and reference signal #2, and the average signal quality of the reference signals from the candidate cell #1 is less than the average signal quality of the reference signals from the candidate cell #2, the measurement report can be as shown in Table 7B.

[0339] Table 7B

[0340] In the third example, the M2 cells include the M1 candidate cells, and the first device can determine the order of the measurement results of the reference signals from the M2 cells in the measurement report according to the manner a3 and the manner d1. For example, the M1 candidate cells include the candidate cell #1 to the candidate cell #2. In the measurement report, the measurement result of the reference signals from the candidate cell #1 includes the identification of the candidate cell #1, the measurement results of the reference signal #2 to the reference signal #3; and the measurement result of the reference signals from the candidate cell #2 includes the identification of the candidate cell #2, the measurement results of the reference signal #4 to the reference signal #5. If the order of the signal quality from large to small is: the reference signal #3, the reference signal #4, the reference signal #5 and the reference signal #2, and the candidate cell #2 belongs to the first group of candidate cells, and the candidate cell #1 belongs to the second group of candidate cells, the measurement report can be shown in Table 7B.

[0341] In the fourth example, the M2 cells include the M1 candidate cells and the serving cell, and the first device can determine the order of the measurement results of the reference signals from the M2 cells in the measurement report according to the manner a1, the manner c1 and the manner d1. For example, the M1 candidate cells include the candidate cell #1 to the candidate cell #2. In the measurement report, the measurement result of the reference signals from the candidate cell #1 includes the identification of the candidate cell #1, the measurement results of the reference signal #2 to the reference signal #3; the measurement result of the reference signals from the candidate cell #2 includes the identification of the candidate cell #2, the measurement results of the reference signal #4 to the reference signal #5; and the measurement result of the reference signals from the serving cell includes the identification of the serving cell, the measurement results of the reference signal #7 to the reference signal #8. If the order of the signal quality from large to small is: the reference signal #3, the reference signal #8, the reference signal #4, the reference signal #7, the reference signal #2 and the reference signal #5, the measurement report can be shown in Table 7C.

[0342] Table 7C

[0343] In the fifth example, the M2 cells include M1 candidate cells and a serving cell. The first device can determine the order of the measurement results of the reference signals from the M2 cells in the measurement report according to the manner a1, the manner c2 and the manner d1. For example, the M1 candidate cells include the candidate cell #1 to the candidate cell #2. In the measurement report, the measurement result of the reference signal from the candidate cell #1 includes: the identity of the candidate cell #1, the measurement results of the reference signal #2 to the reference signal #3; the measurement result of the reference signal from the candidate cell #2 includes: the identity of the candidate cell #2, the measurement results of the reference signal #4 to the reference signal #5; and the measurement result of the reference signal from the serving cell includes: the identity of the serving cell, the measurement results of the reference signal #7 to the reference signal #8. If the order of the signal quality from large to small is: the reference signal #3, the reference signal #8, the reference signal #4, the reference signal #7, the reference signal #2 and the reference signal #5, the measurement report can be as shown in Table 7D.

[0344] Table 7D

[0345] It should be understood that at least one of the manners a1 to a5 can be combined with at least one of the following: at least one of the manners c1 to c3, and at least one of the manners d1 to d4. Here, they are not listed one by one.

[0346] In some possible manners, as described above, the fourth cell is any one of the M2 cells. In the measurement report, the measurement result of the N1 reference signals from the fourth cell can include: the signal quality of a fifth reference signal of the N1 reference signals, and the differential quality of each reference signal of the N1 reference signals other than the fifth reference signal. Wherein, the differential quality of each reference signal is the difference between the signal quality of the each reference signal and the signal quality of the fifth reference signal.

[0347] Optionally, the fifth reference signal can be the reference signal with the largest signal quality in the N1 reference signals; or, the reference signal with the smallest signal quality in the N1 reference signals; or, the reference signal with the intermediate signal quality in the N1 reference signals; or, the reference signal indicated by the other device (for example, the second device or the access network device). The fifth reference signal can also have other forms, which are not limited.

[0348] The signal quality of the fifth reference signal can be quantitatively characterized by XI bits, and the differential quality of each reference signal of the Nl reference signals except the fifth reference signal can be quantitatively characterized by X2 bits. XI is a positive integer, X2 is a positive integer, and XI is greater than X2. For example, XI can be 7, and X2 can be 4. For example, the signal quality of the fifth reference signal is -102, which can be quantitatively characterized by 7 bits; reference signal #a is a reference signal of the Nl reference signals except the fifth reference signal, and the signal quality of the reference signal #a is 13 less than -102, which can be quantitatively characterized by 4 bits. The unit of the signal quality can be decibel-milliwatt (dBm) or decibel (dB).

[0349] Hereinafter, the fifth reference signal is taken as the reference signal with the maximum signal quality of the Nl reference signals, XI is taken as 7, and X2 is taken as 4 for example.

[0350] For example, in the first example above, the measurement report can be as shown in Table 8A. The signal quality of reference signal #3 can be quantitatively characterized by 7 bits; the differential quality of reference signal #2 can be the difference between the signal quality of reference signal #2 and the signal quality of reference signal #3, which can be quantitatively characterized by 4 bits. The signal quality of reference signal #4 can be quantitatively characterized by 7 bits; the differential quality of reference signal #5 can be the difference between the signal quality of reference signal #5 and the signal quality of reference signal #4, which can be quantitatively characterized by 4 bits.

[0351] Table 8A

[0352] For example, in the first example above, the measurement report can be as shown in Table 8A. The signal quality of reference signal #3 can be quantitatively characterized by 7 bits; the differential quality of reference signal #2 can be the difference between the signal quality of reference signal #2 and the signal quality of reference signal #3, which can be quantitatively characterized by 4 bits. The signal quality of reference signal #4 can be quantitatively characterized by 7 bits; the differential quality of reference signal #5 can be the difference between the signal quality of reference signal #5 and the signal quality of reference signal #4, which can be quantitatively characterized by 4 bits.

[0353] Table 8B

[0354] For example, in the fourth example above, the measurement report can be as shown in Table 8C. The signal quality of reference signal #8 can be quantitatively characterized by 7 bits; the differential quality of reference signal #7 can be the difference between the signal quality of reference signal #7 and the signal quality of reference signal #8, and can be quantitatively characterized by 4 bits. The signal quality of reference signal #3 can be quantitatively characterized by 7 bits; the differential quality of reference signal #2 can be the difference between the signal quality of reference signal #2 and the signal quality of reference signal #3, and can be quantitatively characterized by 4 bits. The signal quality of reference signal #4 can be quantitatively characterized by 7 bits; the differential quality of reference signal #5 can be the difference between the signal quality of reference signal #5 and the signal quality of reference signal #4, and can be quantitatively characterized by 4 bits.

[0355] Table 8C

[0356] For example, in the fifth example above, the measurement report can be as shown in Table 8D. The specific meanings of the information in Table 8D can be referred to the descriptions of the meanings of the information in Table 8C, and will not be repeated here.

[0357] Table 8D

[0358] In this way, the measurement results of the reference signals from different cells can be quantitatively characterized respectively. In this way, in the case that the differences between the signal qualities of the reference signals from different cells are large, the first device can accurately report the signal qualities of the reference signals from different cells with a small overhead, and the accuracy of the reported signal qualities of the reference signals from different cells is improved.

[0359] In other possible manners, as described above, the measurement report can include the measurement results of the reference signals from M2 cells, and the specific content of the M2 cells can be referred to the descriptions of the M2 cells above, and will not be repeated here. The measurement results of the reference signals from the M2 cells include the signal quality of the sixth reference signal, and the differential quality of each reference signal from the reference signals from the M2 cells other than the sixth reference signal. The sixth reference signal belongs to the reference signals from the M2 cells; and the differential quality of each reference signal is the difference between the signal quality of the each reference signal and the signal quality of the sixth reference signal.

[0360] Optionally, the sixth reference signal can be the reference signal with the best signal quality from the first one of the M2 cells; or can be the reference signal with the worst signal quality from the first one of the M2 cells; or can be the reference signal with the intermediate signal quality from the first one of the M2 cells; or can be the reference signal with the best signal quality from the M2 cells; or can be the reference signal with the worst signal quality from the M2 cells; or can be the reference signal with the intermediate signal quality from the M2 cells; or can be the reference signal indicated by another device (e.g., the second device or an access network device). The sixth reference signal can also have other forms of representation, which are not limited.

[0361] The signal quality of the sixth reference signal can be quantitatively characterized by X1 bits, and the differential quality of each reference signal from the M2 cells except the sixth reference signal can be quantitatively characterized by X2 bits. X1 is a positive integer, X2 is a positive integer, and X1 is greater than X2. For example, X1 can be 7 and X2 can be 4. For example, the signal quality of the sixth reference signal is -102, which can be quantitatively characterized by 7 bits; the signal quality of reference signal #b is 13 less than -102, which can be quantitatively characterized by 4 bits. The unit of the signal quality can be decibel-milliwatt (dBm) or decibel (dB).

[0362] Hereinafter, the sixth reference signal is taken as the reference signal with the best signal quality from the first one of the M2 cells, X1 is 7, and X2 is 4 as an example for illustration.

[0363] For example, in the first example above, the measurement report can be as shown in Table 9A. The signal quality of reference signal #3 can be quantitatively characterized by 7 bits; the differential quality of each reference signal in Table 9A can be the difference between the signal quality of the reference signal and the signal quality of reference signal #3, which can be quantitatively characterized by 4 bits.

[0364] Table 9A

[0365] For example, in the first example above, the measurement report can be as shown in Table 9A. The signal quality of reference signal #3 can be quantitatively characterized by 7 bits; the differential quality of each reference signal in Table 9A can be the difference between the signal quality of the reference signal and the signal quality of reference signal #3, which can be quantitatively characterized by 4 bits.

[0366] Table 9B

[0367] For example, in the fourth example above, the measurement report can be as shown in Table 9C. The signal quality of reference signal #8 can be quantitatively characterized by 7 bits; the differential quality of each reference signal in Table 9C can be the difference between the signal quality of the reference signal and the signal quality of reference signal #8, and can be quantitatively characterized by 4 bits.

[0368] Table 9C

[0369] For example, in the fourth example above, the measurement report can be as shown in Table 9C. The signal quality of reference signal #8 can be quantitatively characterized by 7 bits; the differential quality of each reference signal in Table 9C can be the difference between the signal quality of the reference signal and the signal quality of reference signal #8, and can be quantitatively characterized by 4 bits.

[0370] Table 9D

[0371] In this way, the measurement results of reference signals from different cells can be quantitatively characterized uniformly, thereby reducing the reporting overhead.

[0372] In some possible manners, the method shown in FIG. 2 can further include S206:

[0373] S206: The second device performs mobility management on the first device according to the measurement report.

[0374] The present application does not limit the specific process of the second device performing mobility management. For example, if in the measurement report, the signal quality of the reference signal from the serving cell is less than a fifth threshold value, and the signal quality of the reference signal from candidate cell #1 is greater than a sixth threshold value, the first device can instruct the first device to switch from the serving cell to candidate cell #1. The fifth threshold value and the sixth threshold value can be pre-set, for example, specified by a protocol; or can be determined by the second device; or can be notified to the second device by another device (for example, a core network device or the first device).

[0375] Optionally, S206 can be after S202.

[0376] Through the method shown in FIG. 2, in the measurement report, the measurement results of the reference signals from the M1 candidate cells are sorted according to at least one of the signal quality of the reference signals from the M1 candidate cells or the relationship between the M1 candidate cells and the first event. In this way, the first device can accurately sort the measurement results of the reference signals from the M1 candidate cells.

[0377] In addition, one measurement report (e.g., a measurement report including L1 measurement results) can correspond to multiple measurement resource sets, and resource identities of resources in different measurement resource sets can be repeated. For example, resource identities of resources in each measurement resource set are 0-15. Therefore, multiple measurement results in one measurement report can correspond to the same resource identity in different measurement resource sets, respectively. In this way, it is impossible to determine, by only using the resource identity, the measurement result of the reference signal in the measurement report is for which measurement resource set. By sorting the measurement results of the reference signals from the M1 candidate cells, the second device can accurately determine the measurement result in the measurement report is for which measurement resource set.

[0378] Based on the same technical concept as the above method embodiments, the embodiments of the present application provide a corresponding communication device, which can be used to perform the functions of the related steps in the above method embodiments. The functions can be implemented by hardware, by software, or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions. The communication device can be a terminal or an access network device, or can be a device (e.g., a module, a communication module, a circuit or a chip responsible for communication functions (such as a modem chip, or a SoC chip or a SIP chip containing a modem core), a chip system, or a processor) in a terminal or an access network device, or can be a logic node, a logic module, or software that can implement all or part of the functions of a terminal or an access network device.

[0379] In one possible implementation, the structure of the communication device provided by the embodiments of the present application is shown in FIG. 3, which includes a processing unit 302. Optionally, the communication device further includes an interface unit 301. The functions of each unit in the communication device 300 are introduced below.

[0380] The interface unit 301 is used to input and / or output information. The input information can be replaced by received information, and the output information can be replaced by transmitted information. When outputting information, the interface unit 301 can output information to other devices outside the communication device 300, or output information to other units in the communication device 300. In some manners, the interface unit 301 can be implemented by at least one of a physical interface, a communication module, a communication interface, and an input / output interface. In other manners, the interface unit 301 can be implemented by an interface circuit, for example, a mobile communication module. The mobile communication module can include one or more of at least one antenna, at least one filter, a switch, a power amplifier, a low noise amplifier (LNA), etc. The interface unit 301 is used to perform the receiving operation and the transmitting operation in the above method embodiments.

[0381] In this application, the interface unit 301 can also have other names, such as a transceiver unit or a communication unit. Optionally, the interface unit 301 can include a receiving unit and a sending unit, which are respectively used for inputting and outputting information. The receiving unit is used to perform the receiving operation in the above method embodiments. The sending unit is used to perform the sending operation in the above method embodiments.

[0382] The processing unit 302 can be used to support the communication device 300 to perform the processing actions in the above method embodiments. The processing unit 302 can be implemented by one or more processors. For example, the processor can be a central processing unit (CPU), and can also be other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA), microcontroller units (MCU), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. The general-purpose processor can be a microprocessor, or any conventional processor. The processing unit 302 is used to perform the operations related to processing in the above method embodiments, for example, to instruct the operations in the above method embodiments other than the receiving operation and the sending operation.

[0383] In an embodiment, the communication device 300 is applied to the first device in the embodiment of the application shown in FIG. 2. The specific functions of the processing unit 302 in this embodiment will be introduced below.

[0384] The processing unit 302 is configured to: receive reference signals from M cells through the interface unit 301, M being an integer greater than 1; and send a measurement report through the interface unit 301, the measurement report including measurement results of reference signals from M1 candidate cells, M1 being a positive integer, the M1 candidate cells belonging to the M cells, the M1 candidate cells being related to a first event used to trigger sending of the measurement report, and in the measurement report, the measurement results of the reference signals from the M1 candidate cells are sorted according to at least one of the following: signal quality of the reference signals from the M1 candidate cells, or the relationship between the M1 candidate cells and the first event.

[0385] In some possible implementations, the first cell and the second cell are any two of the M1 candidate cells, and the processing unit 302 is further configured to: receive, through the interface unit 301, first information, where the first information is used to indicate a first quantity, and the first quantity is equal to a quantity of reference signals corresponding to the measurement results of the reference signals from the first cell in the measurement report; and receive, through the interface unit 301, second information, where the second information is used to indicate a second quantity, and the second quantity is equal to a quantity of reference signals corresponding to the measurement results of the reference signals from the second cell in the measurement report, and the first quantity and the second quantity are the same or different.

[0386] Optionally, the processing unit 302 is further configured to: receive, through the interface unit 301, third information, where the third information is used to indicate whether the first device reports the measurement results of the reference signals from the serving cell.

[0387] In another implementation, the communication device 300 is applied to the second device in the embodiment of the application shown in FIG. 3. The specific functions of the processing unit 302 in this implementation are described below.

[0388] The processing unit 302 is configured to: receive, through the interface unit 301, a measurement report, where the measurement report includes measurement results of reference signals from M1 candidate cells, M1 is a positive integer, the M1 candidate cells include M1 candidate cells related to a first event used to trigger sending of the measurement report, and in the measurement report, the measurement results of the reference signals from the M1 candidate cells are sorted according to at least one of the following: signal quality of the reference signals from the M1 candidate cells, or a relationship between the M1 candidate cells and the first event.

[0389] In some possible implementations, the first cell and the second cell are any two of the M1 candidate cells, and the processing unit 302 is further configured to: send, through the interface unit 301, first information, where the first information is used to indicate a first quantity, and the first quantity is equal to a quantity of reference signals corresponding to the measurement results of the reference signals from the first cell in the measurement report; and send, through the interface unit 301, second information, where the second information is used to indicate a second quantity, and the second quantity is equal to a quantity of reference signals corresponding to the measurement results of the reference signals from the second cell in the measurement report, and the first quantity and the second quantity are the same or different.

[0390] Optionally, the processing unit 302 is further configured to: send, through the interface unit 301, third information, where the third information is used to indicate whether the first device reports the measurement results of the reference signals from the serving cell.

[0391] In a possible design, when the communication apparatus 300 is a communication device or a communication module in a communication device, the function of the processing unit 302 can be implemented by one or more processors. For example, the processor can include a modem chip, or a system on chip (SoC) chip or a SIP chip including a modem core. The function of the interface unit 301 can be implemented by a transceiver circuit.

[0392] In a possible design, when the communication apparatus 300 is a circuit or chip responsible for communication functions in a communication device, such as a modem chip or a system on chip (SoC) chip or a SIP chip including a modem core, the function of the processing unit 302 can be implemented by circuitry including one or more processors or processor cores in the chip. The function of the interface unit 301 can be implemented by an interface circuit or a data transceiver circuit on the chip.

[0393] The communication device can be a terminal or an access network device.

[0394] For more details of the processing unit 302 and the interface unit 301, refer to the related description in the method embodiment shown in FIG. 2, which will not be repeated here.

[0395] It should be noted that the division of modules in the above embodiments is illustrative, and is merely a logical function division. In actual implementation, another division manner can be used. In addition, each functional unit in each embodiment of the present application can be integrated in one processing unit, or can be physically separated, or two or more units can be integrated in one unit. The integrated unit can be implemented in the form of hardware, or in the form of a software functional unit, or in the form of a combination of hardware and software. Whether a certain function is implemented in hardware or software depends on the specific application and design constraints of the technical solution. A person skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0396] For example, the functional units in any of the above apparatuses can be one or more integrated circuits configured to implement the above methods, such as one or more ASICs, one or more CPUs, one or more MCUs, one or more DSPs, or one or more FPGAs, or a combination of at least two of these integrated circuit forms.

[0397] The integrated unit described above, if realized 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 an understanding, the technical solutions of the present application essentially or the part of the prior art that contributes to the present application 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 plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various media that can store program codes.

[0398] In a possible implementation, the communication apparatus provided by the embodiments of the present application is shown in FIG. 4, and the communication apparatus 400 includes a processor 402. Optionally, the communication apparatus 400 further includes an interface circuit 401 and a memory 403. The interface circuit 401, the processor 402 and the memory 403 are coupled with each other.

[0399] Optionally, the interface circuit 401, the processor 402 and the memory 403 are coupled with each other through a bus 404. The bus 404 can be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, only one thick line is shown in FIG. 4, but it does not mean that there is only one bus or only one type of bus.

[0400] The interface circuit 401 is configured to input and / or output information. The input information can be replaced by received information, and the output information can be replaced by transmitted information. When the information is output, the interface circuit 401 can output the information to other devices outside the communication apparatus 400, or output the information to other units in the communication apparatus 400. For example, the interface circuit 401 can be implemented by at least one of a physical interface, a communication module, a communication interface, an input / output interface, and a mobile communication module. The mobile communication module can include one or more of at least one antenna, at least one filter, a switch, a power amplifier, an LNA, etc. The interface circuit 401 is configured to perform the receiving operation and the transmitting operation in the above method embodiments.

[0401] The interface circuit 401 can be one of a transceiver, a transceiving circuit, a communication circuit, an interface, a communication interface, or an input / output interface (for example, an input / output interface of a chip). The interface circuit 401 can include an input interface circuit and an output interface circuit for inputting and outputting information respectively. The input interface circuit is configured to perform the receiving operation in the above method embodiments. The output interface circuit is configured to perform the sending operation in the above method embodiments.

[0402] The transceiver can be configured to communicate with other communication devices. For example, the communication device 400 is a terminal, and the transceiver can be configured to communicate with an access network device or another terminal. For another example, the communication device 400 is an access network device, and the transceiver can be configured to communicate with a terminal or another access network device.

[0403] Optionally, the transceiver can include a receiver and a transmitter. The receiver is configured to perform the receiving operation in the above method embodiments. The transmitter is configured to perform the sending operation in the above method embodiments.

[0404] Optionally, the transceiver can be integrated with the processor 402, or exist independently and be coupled with the processor 402 through the interface circuit of the communication device 400, and the embodiments of the present application do not make a specific limitation in this regard.

[0405] The processor 402 can be configured to support the communication device 400 to perform the processing actions in the above method embodiments. When the communication device 400 is configured to implement the above method embodiments, the processor 402 can also be configured to implement the functions of the processing unit 302. The processor 402 can be a CPU, and also can be other general-purpose processors, DSPs, ASICs, FPGAs, or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. The general-purpose processor can be a microprocessor, or any conventional processor. The processor 402 is configured to perform operations related to processing in the above method embodiments, for example, operations other than the receiving operation and the sending operation in the above method embodiments.

[0406] In an embodiment, the communication device 400 is applied to the first device in the embodiment of the present application shown in FIG. 2. The specific functions of the processor 402 in this embodiment are introduced as follows.

[0407] The processor 402 is configured to: receive, through the interface circuit 401, reference signals from M cells, where M is an integer greater than 1; and send, through the interface circuit 401, a measurement report, the measurement report including measurement results of reference signals from M1 candidate cells, where M1 is a positive integer, the M1 candidate cells belong to the M cells, the M1 candidate cells are related to a first event used for triggering sending of the measurement report, and in the measurement report, the measurement results of the reference signals from the M1 candidate cells are sorted according to at least one of the following: signal quality of the reference signals from the M1 candidate cells, or relationship of the M1 candidate cells to the first event.

[0408] In another embodiment, the communication apparatus 400 is applied to the second device in the embodiments of the present application shown in FIG. 2. The specific functions of the processor 402 in this embodiment are described as follows.

[0409] The processor 402 is configured to: receive, through the interface circuit 401, a measurement report, the measurement report including measurement results of reference signals from M1 candidate cells, where M1 is a positive integer, the M1 candidate cells include M1 candidate cells related to a first event used for triggering sending of the measurement report, and in the measurement report, the measurement results of the reference signals from the M1 candidate cells are sorted according to at least one of the following: signal quality of the reference signals from the M1 candidate cells, or relationship of the M1 candidate cells to the first event.

[0410] The specific functions of the processor 402 can refer to the descriptions of the communication method in the embodiments of the present application and the examples, and the specific functions of the communication apparatus 300 in the embodiments of the present application shown in FIG. 3, which will not be repeated here.

[0411] The memory 403 is configured to store program instructions and / or data, etc. Specifically, the program instructions can include program codes including computer operation instructions. The memory 403 can include a RAM, and can also include a non-volatile memory such as at least one disk memory. The processor 402 executes the program instructions stored in the memory 403, and uses the data stored in the memory 403, to realize the above functions, thereby realizing the communication method provided by the embodiments of the present application. The memory 403 can be integrated with the processor 402, or can be a memory outside the communication apparatus.

[0412] It is to be understood that the memory 403 in FIG. 4 of the present application can be a volatile memory or a nonvolatile memory, or can include both volatile and nonvolatile memory. Among them, the nonvolatile memory can be a ROM, a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically EPROM (EEPROM), or a flash memory. The volatile memory can be a RAM used as an external cache. By way of example, and not limitation, a number of forms of RAM are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous dynamic RAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchlink DRAM (SLDRAM), and direct rambus RAM (DR RAM). It is to be noted that the memory of the system and method described herein is intended to include, without being limited to, these and any other suitable types of memory.

[0413] The present application also provides a communication apparatus 500, which can be a terminal, a processor in the terminal, or a chip. The communication apparatus 500 can be used to perform the operations performed by the first apparatus in the above method embodiments.

[0414] When the communication apparatus 500 is a terminal, FIG. 5 shows a structural schematic diagram of a terminal. As shown in FIG. 5, the terminal includes a processor, a memory, and a transceiver. The memory can store computer program codes, and the transceiver includes a transmitter 531, a receiver 532, a radio frequency circuit (not shown in the figure), an antenna 533, and an input / output device (not shown in the figure).

[0415] The processor is mainly used for processing communication protocols and communication data, controlling the terminal, executing software programs, and processing data of the software programs, etc.

[0416] The memory is mainly used for storing software programs and data.

[0417] The radio frequency circuit is mainly used for conversion between baseband signals and radio frequency signals, and processing of the radio frequency signals.

[0418] The antenna is mainly used for transceiving radio frequency signals in the form of electromagnetic waves.

[0419] The input and output device can include a touch screen, a display screen, or a keyboard, etc. The input and output device is mainly used for receiving user input data and outputting data to the user. It should be noted that some types of terminals can not have an input and output device.

[0420] When data needs to be sent, the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit. Then, the radio frequency circuit performs radio frequency processing on the baseband signal, and sends the radio frequency signal in the form of electromagnetic waves through the antenna. When data is sent to the terminal, the radio frequency circuit receives the radio frequency signal through the antenna. The radio frequency circuit converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor. The processor converts the baseband signal into data and processes the data.

[0421] For ease of illustration, only one memory, processor and transceiver are shown in FIG. 5. In actual terminal products, there can be one or more processors and one or more memories. The memory can also be referred to as a storage medium or a storage device, etc. The memory can be independent of the processor or integrated with the processor, and the embodiments of the present application do not limit this.

[0422] In the embodiments of the present application, the antenna and the radio frequency circuit with transceiving function can be regarded as the interface unit of the terminal, and the processor with processing function can be regarded as the processing unit of the terminal.

[0423] As shown in FIG. 5, the terminal includes a processor 510, a memory 520 and a transceiver 530. The processor 510 can also be referred to as a processing board, a processing module, or a processing device, etc. The transceiver 530 can also be referred to as an interface circuit, a transceiver, or a transceiving device, etc. The processor 510 is configured to perform the processing operation of the first device side in the above method embodiments. The transceiver 530 is configured to perform the transceiving operation of the first device side in the above method embodiments.

[0424] Optionally, the device for realizing the receiving function in the transceiver 530 is regarded as a receiver, and the device for realizing the sending function in the transceiver 530 is regarded as a transmitter, that is, the transceiver 530 includes a receiver 532 and a transmitter 531. The receiver can also be referred to as a receiver, a receiving module, or a receiving circuit, etc. The transmitter can also be referred to as a transmitter, a transmitting module, or a transmitting circuit, etc. The receiver is configured to perform the receiving operation of the first device side in the above method embodiments. The transmitter is configured to perform the sending operation of the first device side in the above method embodiments.

[0425] It should be understood that FIG. 5 is only an example and not a limitation, and the terminal can not depend on the structure shown in FIG. 5.

[0426] When the communication apparatus 500 is a chip, the chip includes a processor, a memory and a transceiver. The transceiver can be an input output circuit or a communication interface. The processor can be an integrated processing module on the chip or a microprocessor or an integrated circuit. The sending operation of the first device in the method embodiments can be understood as the output of the chip, and the receiving operation of the first device in the method embodiments can be understood as the input of the chip.

[0427] The application further provides a communication apparatus 600, which can be an access network device or a chip. The communication apparatus 600 can be used to perform the operations performed by the second device in the method embodiments.

[0428] When the communication apparatus 600 is an access network device, for example, a base station. FIG. 6 shows a structural schematic diagram of an access network device. The access network device includes a 610 part, a 620 part and a 630 part.

[0429] The 610 part is mainly used for baseband processing, controlling the access network device, etc. The 610 part is usually the control center of the base station, which can be usually referred to as a processor, and is used to control the access network device to perform the processing operations of the second device in the method embodiments.

[0430] The 620 part is mainly used for storing computer program codes and data.

[0431] The 630 part is mainly used for the transceiving of radio frequency signals and the conversion between radio frequency signals and baseband signals. The 630 part can be usually referred to as a transceiving module, a transceiver, a transceiving circuit, an interface circuit or a transceiver, etc. The 630 part can include an antenna 633 and a radio frequency circuit (not shown in the figure), wherein the radio frequency circuit is mainly used for radio frequency processing. The 630 part can be used to perform the transceiving operations of the second device in the method embodiments.

[0432] Optionally, the devices in the 630 part used for realizing the receiving function can be regarded as a receiver, and the devices used for realizing the sending function can be regarded as a transmitter, that is, the 630 part includes a receiver 632 and a transmitter 631. The receiver can also be referred to as a receiving module, a receiver or a receiving circuit, etc. The transmitter can be referred to as a transmitting module, a transmitter or a transmitting circuit, etc. The receiver is used to perform the receiving operations of the second device in the method embodiments. The transmitter is used to perform the sending operations of the second device in the method embodiments.

[0433] The 610 part and the 620 part can include one or more single boards, and each single board can include one or more processors and one or more memories. The processors are used to read and execute programs in the memories to realize baseband processing functions and control of the access network device. If there are multiple single boards, the single boards can be interconnected to enhance processing capability. As an optional implementation, multiple single boards can also share one or more processors, or multiple single boards can share one or more memories, or multiple single boards can share one or more processors at the same time.

[0434] It should be understood that FIG. 6 is merely an example and is not limiting, and the access network device can not depend on the structure shown in FIG. 6.

[0435] When the communication apparatus 600 is a chip, the chip includes a transceiver, a memory and a processor. The transceiver can be an input / output circuit, a communication interface; the processor is a processor integrated on the chip, or a microprocessor, or an integrated circuit. The sending operation of the second device in the above method embodiment can be understood as the output of the chip, and the receiving operation of the second device in the above method embodiment can be understood as the input of the chip.

[0436] Based on the above embodiments, the embodiments of the present application further provide a computer program product including computer executable instructions, when the computer program product is executed, the method provided by the above embodiments is executed.

[0437] Based on the above embodiments, the embodiments of the present application further provide a computer readable storage medium, the computer readable storage medium stores a computer program, and the computer program is executed by a computer to make the computer execute the method provided by the above embodiments.

[0438] The storage medium can be any available medium that can be accessed by a computer. For example, but not limited to: the computer readable medium can include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage medium or other magnetic storage devices, or any other medium that can be used to carry or store desired program codes in the form of instructions or data structures and can be accessed by a computer.

[0439] Based on the above embodiments, the embodiments of the present application further provide a chip for reading a computer program stored in a memory to realize the method provided by the above embodiments.

[0440] Based on the above embodiments, the embodiments of the present application provide a chip system, which comprises a processor for supporting a computer device to realize the functions related to the devices in the above embodiments. In a possible design, the chip system further comprises a memory for storing necessary programs and data of the computer device. The chip system can be composed of a chip, or can include a chip and other discrete devices.

[0441] In each of the embodiments of the present application, the terms and / or descriptions in different embodiments are consistent and can be referred to each other if there is no special description and logical conflict. The technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0442] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems) and computer program products according to the present application. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, and the combination of the flows and / or blocks in the flowcharts and / or block diagrams can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for implementing the functions specified in one or more flows in the flowcharts and / or one or more blocks in the block diagrams.

[0443] These computer program instructions can also be stored in a computer readable memory capable of guiding the computer or other programmable data processing device to work in a specific way, so that the instructions stored in the computer readable memory produce a product including instruction devices, which implement the functions specified in one or more flows in the flowcharts and / or one or more blocks in the block diagrams.

[0444] These computer program instructions can also be loaded into a computer or other programmable data processing device, so that a series of operation steps are performed on the computer or other programmable device to produce a computer implemented process, so that the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more flows in the flowcharts and / or one or more blocks in the block diagrams.

[0445] In this application, the terms "system" and "network" can be interchangeably used. "At least one" means one or more, and "multiple" means two or more. "And / or" describes the associated relationship of associated objects, which means that there can be three relationships, for example, A and / or B, which can represent: A exists alone, A and B exist together, B exists alone, where A, B can be singular or plural. "At least one of the following" or similar expressions means any combination of these items, including any combination of single or multiple items. In the character description of this application, the character " / " generally represents the relationship between the front and back associated objects as "or". In the formula description of this application, the character " / " generally represents the relationship between the front and back associated objects as "division"; in other words, in the formula description of this application, the character " / " can be a division sign.

[0446] It can be understood that various numerical numbers involved in the embodiments of the present application are only distinguished for convenience of description, and are not used to limit the scope of the embodiments of the present application. The size of the serial number of the above processes does not mean the order of execution, and the execution order of the processes should be determined according to its function and inherent logic.

[0447] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these modifications and variations.

Claims

1. A communication method characterized by comprising: The application is applied to a first device, comprising: receiving reference signals from M cells, M being an integer greater than 1; sending a measurement report, the measurement report comprising measurement results of reference signals from M1 candidate cells, M1 being a positive integer, the M1 candidate cells belonging to the M cells, the M1 candidate cells being related to a first event used for triggering sending of the measurement report, in the measurement report, the measurement results of the reference signals from the M1 candidate cells are sorted according to at least one of the following: signal quality of the reference signals from the M1 candidate cells, or relationship of the M1 candidate cells with the first event.

2. The method of claim 1, wherein, The first cell and the second cell are any two cells in the M1 candidate cells, further comprising: receiving first information, the first information being used for indicating a first number, the first number being equal to a number of reference signals corresponding to the measurement results of the reference signals from the first cell in the measurement report; receiving second information, the second information being used for indicating a second number, the second number being equal to a number of reference signals corresponding to the measurement results of the reference signals from the second cell in the measurement report, the first number and the second number being the same or different.

3. The method of claim 1 or 2, wherein, The M cells further comprise a serving cell, and the measurement report further comprises measurement results of reference signals from the serving cell.

4. The method of claim 3, wherein, Further comprising: receiving third information, the third information being used for indicating whether the first device reports the measurement results of the reference signals from the serving cell.

5. A communication method characterized by comprising: The application is applied to a second device, comprising: receiving a measurement report, the measurement report comprising measurement results of reference signals from M1 candidate cells, M1 being a positive integer, the M1 candidate cells comprising M1 candidate cells related to a first event used for triggering sending of the measurement report, in the measurement report, the measurement results of the reference signals from the M1 candidate cells are sorted according to at least one of the following: signal quality of the reference signals from the M1 candidate cells, or relationship of the M1 candidate cells with the first event.

6. The method of claim 5, wherein, The first cell and the second cell are any two cells in the M1 candidate cells, further comprising: sending first information, the first information being used for indicating a first number, the first number being equal to a number of reference signals corresponding to the measurement results of the reference signals from the first cell in the measurement report; sending second information, the second information being used for indicating a second number, the second number being equal to a number of reference signals corresponding to the measurement results of the reference signals from the second cell in the measurement report, the first number and the second number being the same or different.

7. The method of claim 5 or 6, wherein, The M cells further comprise a serving cell, and the measurement report further comprises measurement results of reference signals from the serving cell.

8. The method of claim 7, wherein, Further comprising: sending third information, the third information being used for indicating whether the first device reports the measurement results of the reference signals from the serving cell.

9. The method according to any one of claims 1 to 8, characterized in that, The first cell and the second cell are any two cells in the M1 candidate cells, and in the measurement report, the order of the measurement result of the reference signal from the first cell and the measurement result of the reference signal from the second cell satisfies at least one of the following: In a case where a signal quality of a first reference signal is greater than a signal quality of a second reference signal, the measurement result of the reference signal from the first cell is located before the measurement result of the reference signal from the second cell, the first reference signal being a reference signal with the greatest signal quality from the first cell, and the second reference signal being a reference signal with the greatest signal quality from the second cell; Or, In a case where a first average signal quality is greater than a second average signal quality, the measurement result of the reference signal from the first cell is located before the measurement result of the reference signal from the second cell, the first average signal quality being an average signal quality of the reference signal from the first cell, and the second average signal quality being an average signal quality of the reference signal from the second cell; Or, In a case where the first cell belongs to a first group of candidate cells and the second cell belongs to a second group of candidate cells, the measurement result of the reference signal from the first cell is located before the measurement result of the reference signal from the second cell, the first group of candidate cells including candidate cells related to the first event in the M1 candidate cells, and the second group of candidate cells including candidate cells other than the first group of candidate cells in the M1 candidate cells.

10. The method according to any one of claims 1 to 9, characterized in that, The measurement result of the reference signal from the M1 candidate cells further includes an identifier of each of the M1 candidate cells.

11. The method of any one of claims 3, 4, 7, and 8, wherein, In the measurement report, The measurement result of the reference signal from the serving cell is located before the measurement result of the reference signal from the M1 candidate cells; or In a case where a signal quality of a third reference signal is greater than a signal quality of a fourth reference signal, the measurement result of the reference signal from a third cell is located before the measurement result of the reference signal from the serving cell; And / or, in a case where the signal quality of the third reference signal is less than the signal quality of the fourth reference signal, the measurement result of the reference signal from the third cell is located after the measurement result of the reference signal from the serving cell, the third cell being any one of the M1 candidate cells, the third reference signal being a reference signal with the greatest signal quality from the third cell, and the fourth reference signal being a reference signal with the greatest signal quality from the serving cell; or In a case where a third average signal quality is greater than a fourth average signal quality, the measurement result of the reference signal from the third cell is located before the measurement result of the reference signal from the serving cell; and / or, in a case that a third average signal quality is less than a fourth average signal quality, a measurement result of a reference signal from the third cell is behind a measurement result of a reference signal from the serving cell, the third average signal quality is an average signal quality of the reference signal from the third cell, and the fourth average signal quality is an average signal quality of the reference signal from the serving cell.

12. The method of claim 4 or 8, wherein, In a case that the third information indicates the first device to report the measurement result of the reference signal from the serving cell, the third information further indicates the first device to report measurement results of N reference signals from the serving cell, N being a positive integer.

13. The method of any one of claims 1 to 12, wherein, The measurement report comprises measurement results of reference signals from M2 cells, M2 being an integer greater than or equal to M1, the M2 cells being the M1 candidate cells, or the M2 cells comprising the M1 candidate cells and a serving cell; A fourth cell is any one of the M2 cells, and the measurement report comprises measurement results of N1 reference signals from the fourth cell, in the measurement report, the measurement results of the N1 reference signals are arranged consecutively, and are sorted in an order of signal quality of the reference signals from large to small, N1 being a positive integer.

14. The method of claim 13, wherein, The measurement results of the N1 reference signals from the fourth cell comprise a signal quality of a fifth reference signal among the N1 reference signals, and a differential quality of each reference signal among the N1 reference signals except the fifth reference signal; wherein the differential quality of each reference signal is a difference between the signal quality of each reference signal and the signal quality of the fifth reference signal.

15. The method of claim 14, wherein, The fifth reference signal is a reference signal with the largest signal quality among the N1 reference signals.

16. The method of any one of claims 1 to 13, wherein, The measurement report comprises measurement results of reference signals from M2 cells, M2 being an integer greater than or equal to M1, the M2 cells being the M1 candidate cells, or the M2 cells comprising the M1 candidate cells and a serving cell; The measurement results of the reference signals from the M2 cells comprise a signal quality of a sixth reference signal, and a differential quality of each reference signal among the reference signals from the M2 cells except the sixth reference signal; The sixth reference signal belongs to the reference signals from the M2 cells, and the differential quality of each reference signal is a difference between the signal quality of each reference signal and the signal quality of the sixth reference signal.

17. The method of claim 16, wherein, The sixth reference signal is a reference signal with the largest signal quality from a first cell among the M2 cells.

18. A communications device, characterized by A unit for performing the method of any one of claims 1-17.

19. A communications device, characterized by A processor for executing a computer program or instructions, so that the device performs the method of any one of claims 1-17.

20. A computer-readable storage medium, characterized in that, The computer readable storage medium stores a computer program or instructions, when the computer program or instructions are executed, the method of any one of claims 1-17 is implemented.

21. A computer program product, characterised in that, The computer program product comprises computer program code which, when the computer program code is run, implements the method according to any one of claims 1-17.

Images