Communication method and device for reporting measurement report

Abstract

A communication method and apparatus for reporting a measurement report, the method comprising: a first apparatus receiving reference signals from M cells, M being an integer greater than 1; the first device transmits a measurement report including measurement results of reference signals from M1 candidate cells, M1 being a positive integer, the M1 candidate cells belonging to M cells, the M1 candidate cells relating to a first event for triggering the transmission of the measurement report, in which the M is a positive integer, the M1 being a positive integer, the M being a positive integer, the M being a positive integer, and the M being a positive integer. The measurement results of the reference signals from the M1 candidate cells are ranked according to at least one of: signal quality of the reference signals from the M1 candidate cells, or a relationship of the M1 candidate cells with the first event. Through the method, the first device can accurately sort the measurement results of the reference signals from the M1 candidate cells.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a communication method and apparatus for reporting measurement reports. Background Technology

[0002] In wireless communication, reference signals are transmitted between transmitting and receiving devices to send and receive data, obtain system synchronization information, and provide feedback channel information. For example, the transmitting device sends a reference signal to the receiving device, which receives the reference signal and can then perform corresponding operations based on it, such as performing channel measurements and reporting measurement reports.

[0003] How to submit measurement reports requires further study. Summary of the Invention

[0004] This application provides a communication method and apparatus for reporting measurement reports.

[0005] In a first aspect, embodiments of this application provide a communication method that can be applied to a first device. The first device may be a terminal, or a device that is part of a terminal (e.g., a module, communication module, circuit or chip responsible for communication functions (such as a modem chip, also known as a baseband chip, or a system-on-chip (SoC) chip containing a modem core or a system-in-package (SIP) chip), a chip system, or a processor), or a logical node, logical module, or software capable of implementing all or part of the terminal functions. The method may include: the first device receiving reference signals from M cells, where M is an integer greater than 1; the first device sending 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 M cells, the M1 candidate cells are related to a first event used to trigger the transmission of the measurement report, and in the measurement report, the measurement results of the reference signals from the M1 candidate cells are ordered according to at least one of the following: the signal quality of the reference signals from the M1 candidate cells, or the relationship between the M1 candidate cells and the first event.

[0006] Using this 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: the signal quality of the reference signals from the M1 candidate cells, or the relationship between the M1 candidate cells and the first event. Thus, the first device can accurately sort the measurement results of the reference signals from the M1 candidate cells.

[0007] Furthermore, a measurement report (e.g., a measurement report including layer 1 (L1) measurement results) may correspond to multiple measurement resource sets, and resource identifiers may be duplicated in different measurement resource sets. For example, the resource identifiers in each measurement resource set may be 0 to 15. Therefore, multiple measurement results in a measurement report may correspond to the same resource identifier in different measurement resource sets. Thus, it is impossible to determine which measurement resource set the measurement results of the reference signal in the measurement report refer to based solely on the resource identifier. By sorting the measurement results of the reference signals from M1 candidate cells, the second device can accurately determine which measurement resource set the measurement results in the measurement report refer to.

[0008] For example, the first device is configured with two measurement resource sets, namely measurement resource set #1 and measurement resource set #2. The resource identifiers of the resources included in measurement resource set #1 and measurement resource set #2 are both 0 to 15. The resources in measurement resource set #1 are the resources of candidate cell #1, and the resources in measurement resource set #2 are the resources of candidate cell #2. If, according to the above method, the measurement result of the reference signal from candidate cell #1 precedes the measurement result from candidate cell #2, and the measurement reports show that the measurement results of the two reference signals correspond to resource identifier 0, then the second device can accurately determine that the measurement result of the first reference signal is for measurement resource set #1, and the measurement result of the second reference signal is for measurement resource set #2.

[0009] Secondly, embodiments of this application provide a communication method that can be applied to a second device. The second device may be an access network device, or a device of the access network device (e.g., a module, communication module, circuit or chip responsible for communication functions (such as a modem chip, or a SoC chip or SIP chip containing a modem core), chip system, or processor), or a logical node, logical module, or software capable of implementing all or part of the functions of the access network device. The method may include: the second device receiving 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 including M1 candidate cells related to a first event used to trigger the transmission of the measurement report, and in the measurement report, the measurement results of the reference signals from the M1 candidate cells are ordered according to at least one of the following: the signal quality of the reference signals from the M1 candidate cells, or the relationship between the M1 candidate cells and the first event.

[0010] Using this 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: the signal quality of the reference signals from the M1 candidate cells, or the relationship between the M1 candidate cells and the first event. Thus, the first device can accurately sort the measurement results of the reference signals from the M1 candidate cells.

[0011] Furthermore, a measurement report (e.g., a measurement report including L1 measurement results) may correspond to multiple measurement resource sets, and resource identifiers may be duplicated in different measurement resource sets. For example, the resource identifiers in each measurement resource set may be 0 to 15. Therefore, multiple measurement results in a measurement report may correspond to the same resource identifier in different measurement resource sets. Thus, it is impossible to determine which measurement resource set the measurement results of the reference signal in the measurement report refer to based solely on the resource identifier. By sorting the measurement results of the reference signals from M1 candidate cells, the second device can accurately determine which measurement resource set the measurement results in the measurement report refer to.

[0012] Based on the first or second aspect, in one possible design, the first cell and the second cell are any two cells from M1 candidate cells, and in the measurement report, the order of the measurement results of the reference signal from the first cell and the measurement results of the reference signal from the second cell satisfies at least one of the following:

[0013] 1. When the signal quality of the first reference signal is greater than that of the second reference signal, the measurement result of the reference signal from the first cell precedes the measurement result of the reference signal from the second cell. The first reference signal is the reference signal with the highest signal quality from the first cell, and the second reference signal is the reference signal with the highest signal quality from the second cell. Through this design, the first device can accurately determine the order of the measurement results of the reference signal from the first cell and the reference signal from the second cell in the measurement report based on the signal quality of the first and second reference signals.

[0014] 2. When the first average signal quality is greater than the second average signal quality, the measurement result of the reference signal from the first cell precedes the measurement result of the reference signal from the second cell. The first average signal quality is the average signal quality of the reference signal from the first cell, and the second average signal quality is the average signal quality of the reference signal from the second cell. Through this design, the first device can accurately determine the order of the measurement results of the reference signal from the first cell and the reference signal from the second cell in the measurement report based on the first and second average signal qualities.

[0015] 3. When the first cell belongs to the first group of candidate cells and the second cell belongs to the second group of candidate cells, the measurement result of the reference signal from the first cell precedes the measurement result of the reference signal from the second cell. The first group of candidate cells includes candidate cells related to the first event from M1 candidate cells, and the second group of candidate cells includes candidate cells other than those in the first group from M1 candidate cells. Through this design, the first device can accurately determine the order of the measurement results of the reference signal from the first cell and the reference signal from the second cell in the measurement report based on the relationship between the candidate cells and the first event.

[0016] Based on the first or second aspect, in one possible design, the first cell and the second cell are any two cells from M1 candidate cells. The second device sends first information; correspondingly, the first device receives the first information, which indicates a first quantity 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 second information; correspondingly, the first device receives second information, which indicates a second quantity 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 and second quantities may be the same or different. With this design, the number of reference signals corresponding to the measurement results of the reference signals from each candidate cell in the measurement report is configurable, and the number of reference signals corresponding to the measurement results of the reference signals from different cells may be the same or different. Thus, the second device can flexibly manage the measurement reports reported by the first device. For example, for candidate cells related to the first event, the second device can be configured to report measurement results of more reference signals; for candidate cells unrelated to the first event, the second device can be configured to report measurement results of fewer reference signals, thereby improving the efficiency and accuracy of the second device in performing mobility management based on the measurement results.

[0017] Based on the first or second aspect, in one possible design, the measurement results of the reference signals from the M1 candidate cells further include: the identifier of each of the M1 candidate cells. Thus, the second device can accurately determine which candidate cell's reference signal the measurement result originates from, based on the identifier of each candidate cell.

[0018] Based on the first or second aspect, in one possible design, the M cells also include a serving cell, and the measurement report includes measurement results of reference signals from the serving cell. With this design, the second device can acquire measurement results of reference signals from the serving cell, thereby enabling more effective mobility management.

[0019] Based on the first or second aspect, in one possible design, the measurement results of the reference signal from the serving cell precede the measurement results of the reference signal from the M1 candidate cells in the measurement report. With this design, the first device can accurately determine the order of the measurement results of the reference signal from the M1 candidate cells and the measurement results of the reference signal from the serving cell in the measurement report, based on the source of the reference signal. By sorting the measurement results of the reference signal from the M1 candidate cells and the measurement results of the reference signal from the serving cell, the second device can accurately determine which set of measurement resources the measurement results in the measurement report are for.

[0020] Based on the first or second aspect, in one possible design, if the signal quality of the third reference signal is greater than that of the fourth reference signal, the measurement result of the reference signal from the third cell precedes the measurement result of the reference signal from the serving cell in the measurement report; and / or, if the signal quality of the third reference signal is less than that of the fourth reference signal, the measurement result of the reference signal from the third cell follows the measurement result of the reference signal from the serving cell in the measurement report. The third cell is any one of the M1 candidate cells, the third reference signal is the reference signal with the highest signal quality from the third cell, and the fourth reference signal is the reference signal with the highest signal quality from the serving cell. Through this design, the first device can accurately determine the order of the measurement results of the reference signal from the third cell and the reference signal from the serving cell in the measurement report based on the signal quality of the third and fourth reference signals, thereby accurately determining the order of the measurement results of the reference signals from the M1 candidate cells and the reference signal from the serving cell in the measurement report. By sorting the measurement results of reference signals from M1 candidate cells and the measurement results of reference signals from the serving cell, the second device can accurately determine which set of measurement resources the measurement results in the measurement report refer to.

[0021] Based on the first or second aspect, in one possible design, when the third average signal quality is greater than the fourth average signal quality, the measurement result of the reference signal from the third cell precedes the measurement result of the reference signal from the serving cell in the measurement report; and / or, when the third average signal quality is less than the fourth average signal quality, the measurement result of the reference signal from the third cell follows the measurement result of the reference signal from the serving cell in the measurement report, where 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. Through this design, the first device can accurately determine the order of the measurement results of the reference signal from the third cell and the reference signal from the serving cell in the measurement report based on the third and fourth average signal qualities, thereby accurately determining the order of the measurement results of the reference signals from M1 candidate cells and the reference signal from the serving cell in the measurement report. By sorting the measurement results of the reference signals from the M1 candidate cells and the reference signals from the serving cell, the second device can accurately determine which measurement resource set the measurement results in the measurement report are for.

[0022] Based on the first or second aspect, in one possible design, the second device sends third information; correspondingly, the first device receives the third information, which indicates whether the first device should report the measurement results of the reference signal from the serving cell. With this design, the second device can flexibly configure whether the first device should report the measurement results of the reference signal from the serving cell via the third information.

[0023] Based on the first or second aspect, in one possible design, when the third information instructs the first device to report the measurement results of reference signals from the serving cell, the third information is also used to instruct the first device to report the 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. This allows the second device to flexibly manage the measurement reports reported by the first device. For example, for a serving cell related to the first event, the second device can be configured to report more reference signal measurement results; for a serving cell unrelated to the first event, the second device can be configured to report fewer reference signal measurement results, thereby improving the efficiency and accuracy of mobility management performed by the second device based on the measurement results.

[0024] Based on the first or second aspect, in one 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 either M1 candidate cells or M2 cells include both candidate cells and serving cells. 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. In the measurement report, the measurement results of the N1 reference signals are arranged consecutively and ordered in descending order of signal quality, where N1 is a positive integer. 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 these N1 reference signals, the second device can accurately determine which set of measurement resources the measurement results in the measurement report are for.

[0025] Based on the first or second aspect, in one possible design, the measurement results of the N1 reference signals from the fourth cell include: the signal quality of the fifth reference signal among the N1 reference signals, and the differential quality of each reference signal other than the fifth reference signal among the N1 reference signals; wherein, 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.

[0026] Optionally, the fifth reference signal is the reference signal with the highest signal quality among the N1 reference signals.

[0027] This design allows for the quantification and characterization of measurement results from reference signals from different cells. Thus, even when there are significant differences in signal quality between reference signals from different cells, the first device can accurately report the signal quality of reference signals from different cells with minimal overhead, thereby improving the accuracy of the reported signal quality.

[0028] Based on the first or second aspect, in one 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 either M1 candidate cells or M2 cells include both M1 candidate cells and the serving cell. The measurement results of the reference signals from the M2 cells include: the signal quality of a sixth reference signal, and the differential quality of each reference signal 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 each reference signal and the signal quality of the sixth reference signal.

[0029] Optionally, the sixth reference signal is the reference signal with the highest signal quality from the first of the M2 cells.

[0030] This design allows for the unified quantization and characterization of measurement results of reference signals from different cells, thereby reducing reporting overhead.

[0031] Thirdly, this application provides a communication device. In some examples, the communication device can be a terminal, or a device that can be a terminal (e.g., a module, communication module, circuit or chip responsible for communication functions (such as a modem chip, or a SoC chip or SIP chip containing a modem core), chip system, or processor), or a logical node, logical module, or software capable of implementing all or part of the terminal functions. The communication device has the functionality to implement the first aspect described above. In other examples, the communication device can be an access network device, or a device that can be an access network device (e.g., a module, communication module, circuit or chip responsible for communication functions (such as a modem chip, or a SoC chip or SIP chip containing a modem core), chip system, or processor), or a logical node, logical module, or software capable of implementing all or part of the access network device functions. The communication device has the functionality to implement the second aspect described above.

[0032] In one possible design, the communication device includes modules, units, or means that perform the operations described in the first or second aspect above. These modules, units, or means can be implemented in software, hardware, or a combination of both. For example, the communication device includes an interface unit and a processing unit. The interface unit can be used to send and receive signals to enable communication between the communication device and other devices; the processing unit can be used to perform some internal operations of the communication device. The functions performed by the processing unit and the interface unit can correspond to the operations described in the first or second aspect above.

[0033] In one possible design, the communication device includes a processor. The processor is capable of executing computer programs or instructions that, when executed, cause the communication device to implement the methods in any of the possible designs of the first or second aspect described above.

[0034] In one possible design, the communication device includes a processor and a memory, the memory of which may store the necessary computer programs or instructions for implementing the functions involved in the first or second aspect described above. The processor may execute the computer programs or instructions stored in the memory, and when the computer programs or instructions are executed, cause the communication device to implement the methods in any possible design of the first or second aspect described above.

[0035] In one possible design, the communication device includes a processor and an interface circuit, wherein the processor is used to communicate with other devices through the interface circuit and to perform the methods in any possible design of the first or second aspect described above.

[0036] Fourthly, this application provides a communication system that may include a first device and a second device. The first device is capable of executing the communication method provided in the first aspect, and the second device is capable of executing the communication method provided in the second aspect.

[0037] In some possible designs, the first device is a terminal and the second device is an access network device.

[0038] Fifthly, this application provides a computer-readable storage medium storing a computer program or instructions, wherein when the computer program or instructions are executed, the method in any of the possible designs of the first or second aspect described above is implemented.

[0039] Sixthly, this application provides a computer program product including computer program code, wherein when the computer program code is run, the method in any of the possible designs of the first or second aspect described above is implemented.

[0040] In a seventh aspect, this application provides a chip for reading a computer program stored in a memory to execute a method in any possible design of either the first or second aspect described above.

[0041] The technical effects that can be achieved by any of the third to seventh aspects mentioned above can be described with reference to the technical effects that can be achieved by any possible design in the first or second aspect mentioned above. Where there is overlap, no further discussion will be given. Attached Figure Description

[0042] Figures 1A to 1B Architecture diagrams of several communication systems provided in the embodiments of this application;

[0043] Figure 1C An architecture diagram of an open RAN (O-RAN or ORAN) device provided for embodiments of this application;

[0044] Figure 1D A schematic diagram illustrating an application scenario provided in an embodiment of this application;

[0045] Figure 1E A schematic diagram illustrating the correspondence between a cell and a carrier provided in an embodiment of this application;

[0046] Figure 2 A flowchart illustrating a communication method provided in an embodiment of this application;

[0047] Figures 3 to 6 Structural diagrams of several communication devices provided in the embodiments of this application. Detailed Implementation

[0048] The technical solutions in the embodiments of this application will be described below with reference to the accompanying drawings. The technical solutions in the embodiments of this application can be applied to various communication systems, such as wireless local area networks (WLANs), wireless fidelity (Wi-Fi or WiFi) systems, fourth-generation (4G) mobile communication systems (such as long-term evolution (LTE) systems), fifth-generation (5G) mobile communication systems (such as new radio (NR) systems), or future communication systems. The methods provided in the embodiments of this application can be applied to terrestrial network communication systems or non-terrestrial network (NTN) communication systems. NTN communication systems can be, for example, satellite communication systems, and may also include unmanned aerial vehicles (UAVs), high-altitude platform stations (HAPS), and other aerial access network equipment; this application does not limit these aspects.

[0049] This application will present various aspects, embodiments, or features relating to systems that may include multiple devices, components, modules, etc. It should be understood and appreciated that individual systems may include additional devices, components, modules, etc., and / or may not include all the devices, components, modules, etc. discussed in conjunction with the accompanying drawings. Furthermore, combinations of these approaches are also possible.

[0050] Figure 1A A schematic diagram of a communication system provided in an embodiment of this application is shown as an example. Figure 1A As shown, the communication system 10 includes a radio access network (RAN) 100 and a core network (CN) 200. Optionally, the communication system 10 may also include an Internet 300.

[0051] RAN 100 includes at least one RAN node (such as...) Figure 1A 110a and 110b (collectively referred to as 110) and at least one terminal (such as Figure 1A RAN 100, denoted as RAN 120a-120j, is collectively referred to as RAN 120. RAN 100 may also include other RAN nodes, such as wireless relay equipment and / or wireless backhaul equipment. Figure 1A (Not shown in the image). Terminal 120 is connected to RAN node 110 wirelessly. RAN node 110 is connected to core network 200 wirelessly or via wired connection. The core network equipment in core network 200 and RAN node 110 in RAN 100 can be different physical devices, or they can be the same physical device integrating core network logical functions and radio access network logical functions.

[0052] RAN 100 can be a cellular system related to the 3rd Generation Partnership Project (3GPP), such as 4G, 5G mobile communication systems, or future-oriented evolution systems. RAN 100 can also be ORAN, cloud radio access network (CRAN), or WiFi system. RAN 100 can also be a communication system that integrates two or more of the above systems.

[0053] RAN node 110, sometimes referred to as RAN entity or access node, constitutes part of the communication system and assists terminals in achieving wireless access. Multiple RAN nodes 110 in communication system 10 can be of the same type or different types. In some scenarios, the roles of RAN node 110 and terminal 120 are relative, for example... Figure 1A Network element 120i can be a helicopter or a drone, and it can be configured as a mobile base station. For terminals 120j that access RAN 100 through network element 120i, network element 120i is a base station; however, for base station 110a, network element 120i is a terminal. RAN node 110 and terminal 120 are sometimes referred to as communication devices, for example... Figure 1A Network elements 110a and 110b can be understood as communication devices with base station functions, while network elements 120a-120j can be understood as communication devices with terminal functions.

[0054] RAN nodes can also be described in different ways, such as access network equipment. Unless otherwise specified in this application, access network equipment will be used as the term.

[0055] Access network equipment can be devices or modules located on the network side of the aforementioned communication system and possessing corresponding communication functions. Access network equipment typically contains communication modules, circuits, or chips that perform the corresponding communication functions. Access network equipment may also be configured with programs or instructions for performing the corresponding communication functions, as well as the corresponding programs or instructions themselves.

[0056] In one possible scenario, access network equipment 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 base station in a future communication system, or an access node in a WiFi system, etc. Access network equipment can also be a macro base station (such as...). Figure 1A 110a), micro base stations or indoor stations (such as Figure 1A The access network equipment can be categorized as follows: 110b), relay nodes or donor nodes, wireless controllers in CRAN scenarios, satellites, drones, balloons, or aircraft, etc. Optionally, the access network equipment can also be servers, wearable devices, vehicles, or in-vehicle equipment. For example, the access network equipment in vehicle-to-everything (V2X) technology can be a roadside unit (RSU). All or part of the functions of the access network equipment in this application can also be implemented through software functions running on hardware, or through virtualization functions instantiated on a platform (e.g., a cloud platform).

[0057] In another possible scenario, multiple access network devices collaborate to assist the terminal in achieving wireless access, with each device performing a portion of the base station's functions. For example, the access network devices can be a central unit (CU or control unit), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU), etc. The CU and DU can be separate entities or included in the same network element, such as a baseband unit (BBU). The RU can be included in radio frequency equipment or radio frequency units, such as a remote radio unit (RRU), an active antenna unit (AAU), or a remote radio head (RRH).

[0058] In different systems, CU (or CU-CP and CU-UP), DU, or RU may have different names, but those skilled in the art will understand their meaning. For example, in an ORAN system, CU can also be called an open CU (O-CU), DU can also be called an open DU (O-DU), CU-CP can also be called an open CU-CP (O-CU-CP), CU-UP can also be called an open CU-UP (O-CU-UP), and RU can also be called an open RU (O-RU). Any of the units among CU (or CU-CP, CU-UP), DU, and RU in this application can be implemented through software modules, hardware modules, or a combination of software and hardware modules.

[0059] For ease of description, the concepts of "access network equipment" and "site" will be used together in this application. Access network equipment can be understood as a collective term for all equipment (including sites) on the access network side; for example, one or more sites can be collectively referred to as access network equipment. A site can refer to a transmission node specifically located in a physical location. In other words, access network equipment conceptually includes sites.

[0060] A terminal is a device or module that connects to the aforementioned communication system and possesses corresponding communication functions. A terminal can also be called a terminal device, user equipment (UE), mobile station, mobile terminal, wireless terminal device, subscriber unit, subscriber station, mobile station, remote station, user terminal, user agent, or user device, etc. A terminal typically contains communication modules, circuits, or chips that perform the corresponding communication functions. The terminal can also be configured with programs or instructions for performing these communication functions.

[0061] Terminals can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things (IoT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grids, smart furniture, smart offices, smart wearables, smart transportation, and smart cities. Terminals can be mobile phones, tablets, computers with wireless transceiver capabilities, wearable devices, vehicles, drones, helicopters, airplanes, ships, robots, robotic arms, smart home devices, etc. Wearable devices, also known as wearable smart devices or smart wearable devices, are a general term for devices that utilize wearable technology to intelligently design and develop everyday wearables. Terminals used in vehicles are called in-vehicle terminal devices, which include, for example, transportation vehicles with wireless communication capabilities, communication modules, or on-board units (OBUs).

[0062] For example, a terminal may include a mobile phone (or "cellular" phone), a computer with a mobile terminal device, or a portable, pocket-sized, handheld, or computer-embedded mobile device. For instance, a terminal may be a Personal Communication Service (PCS) phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), or other similar devices. A terminal may also include restricted devices, such as devices with limited power consumption, limited storage capacity, or limited computing power. For example, a terminal may be an information sensing device such as a barcode scanner, radio frequency identification (RFID), a sensor, a global positioning system (GPS), or a laser scanner. The embodiments of this application do not limit the device form of the terminal.

[0063] In this application, core network equipment refers to equipment in the core network that provides service support to terminals. For example, in the case where CN200 is the core network of a future communication system, a 5G core network, or an evolved 5G core network, some examples of core network equipment include: access and mobility management function (AMF) entities, session management function (SMF) entities, user plane function (UPF) entities, policy control function (PCF) entities, etc., which are not listed here. Among them, the AMF entity can be responsible for terminal access management and mobility management; the SMF entity can be responsible for session management, such as user session establishment; the UPF entity can be a user plane functional entity, mainly responsible for connecting to external networks. For example, in the case of CN200 as the 4G core network, some core network devices include: Mobility Management Entity (MME), Home Subscriber Server (HSS), Serving Gateway (S-GW), Policy and Charging Rules Function (PCRF), Public Data Network Gateway (PDN Gateway, P-GW), etc., which will not be listed here. It should be noted that in this application, entities can also be referred to as network elements or functional entities. For example, an AMF entity can also be called an AMF network element or AMF functional entity, and an SMF entity can also be called an SMF network element or SMF functional entity, etc. The above-mentioned core network devices can work independently or be combined to implement certain control functions. For example, AMF, SMF, and PCF can be combined into a single core network device.

[0064] Figure 1B An exemplary schematic diagram of an ORAN system architecture provided in an embodiment of this application is shown. The ORAN system in this embodiment may include... Figure 1B Other components besides those shown. For example... Figure 1BAs shown, access network devices can communicate with the core network (CN) via a backhaul link and with terminals via an air interface. For example, a BBU in an access network device communicates with the core network via a backhaul link, and an RU in an access network device communicates with at least one terminal via an air interface. A BBU communicates with at least one RU via a fronthaul link; the BBU and RU may or may not be co-located. A BBU includes at least one CU and at least one DU, which can communicate via at least one midhaul link.

[0065] Figure 1C An exemplary diagram of the network element function division and protocol layer structure of an ORAN device provided in an embodiment of this application is shown.

[0066] In some possible implementations, the CU is a logical node that carries the radio resource control (RRC) layer, service data adaptation protocol (SDAP) layer, packet data convergence protocol (PDCP) layer, and other control functions of the access network equipment. The CU can connect to network nodes such as the core network through interfaces (e.g., E2 interfaces). Optionally, the CU may have some core network functions. The CU (e.g., the PDCP layer and higher layers of the CU) connects to the DU (e.g., the radio link control (RLC) layer and lower layers of the DU) through interfaces (e.g., the F1 interface). 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.). F1AP is the application protocol of the F1 interface, and in some examples, it defines the signaling procedures of F1. The F1 interface supports the F1 control plane (F1-C) and the F1 user plane (F1-U).

[0067] In some examples, a CU may include CU-CP and CU-UP. CU-CP is a logical node carrying the control plane (PDCP-C) layer, which carries the RRC layer and the Packet Data Convergence Protocol layer, and is used to implement the CU's control plane functions. CU-CP can interact with network elements in the core network used to implement control plane functions. These network elements in the core network can be Access and Mobility Function (AMF) network elements, such as the AMF in a 5G system. CU-UP is a logical node carrying the user plane (PDCP-U) layer, which carries the SDAP layer and the Packet Data Convergence Protocol layer, and is used to implement the CU's user plane functions. CU-UP can interact with network elements in the core network used to implement user plane functions. These network elements in the core network are, for example, the UPF in a 5G system.

[0068] In some possible implementations, the DU is a logical node that carries the RLC layer, medium access control (MAC) layer, higher physical layer (Higher PHY) layer, and other functions. In some examples, the DU can control at least one RU. The DU connects to the RU through some interface (e.g., a fronthaul interface). In some examples, the Higher PHY layer includes the physical layer (PHY) processing, such as forward error correction (FEC) encoding and decoding, scrambling, modulation, and demodulation.

[0069] The above configurations of CU and DU are merely examples; the functions of CU and / or DU can be configured as needed. For instance, CU or DU can be configured to have more protocol layer functions, or to have only some protocol layer processing functions. For example, some RLC layer functions and protocol layer functions above the RLC layer can be placed in the CU, while the remaining RLC layer functions and protocol layer functions below the RLC layer can be placed in the DU. Furthermore, the functions of CU or DU can be divided according to service type or other system requirements, such as by latency, placing functions that need to meet low latency requirements in the DU and functions that do not need to meet such latency requirements in the CU.

[0070] In some possible implementations, the RU is a logical node that carries both the lower physical layer (Lower PHY) and radio frequency (RF) processing. In some examples, the RU may be a 3GPP TRP or RRH, or other similar functional entities. In some examples, the Low-PHY includes PHY processing functions such as Fast Fourier Transform (FFT), Inverse Fast Fourier Transform (IFFT), digital beamforming, and filtering. The RU communicates with one or more terminals via a wireless link.

[0071] The DU and RU can be co-located or not. The DU and RU exchange control plane and user plane information via a fronthaul link through a Lower-Layer Split CUS-Plane (LLS-CUS or LLS-C / U / S) interface. LLS-CUS may include a Lower-Layer Split C-Plane (LLS-C) interface providing the control plane (C-Plane) and a Lower-Layer Split U-Plane (LLS-U) interface providing the user plane (U-Plane). In some examples, the control plane refers to real-time control between the DU and RU. The DU and RU exchange management information via a Lower-Layer Split management (LLS-M) interface on the fronthaul link. The management plane (M-Plane) refers to non-real-time management operations between the DU and RU.

[0072] DU and RU can cooperate to implement the functions of the PHY layer. A DU can be connected to one or more RUs. The functions of DU and RU can be configured in various ways depending on the design. For example, a DU can be configured to implement baseband functions, and an RU can be configured to implement mid-RF functions. Another example is that a DU can be configured to implement higher-level functions in the PHY layer, and an RU can be configured to implement lower-level functions in the PHY layer, or both lower-level and RF functions. Higher-level functions in the physical layer can include a portion of the physical layer's functions that are closer to the MAC layer, while lower-level functions in the physical layer can include another portion of the physical layer's functions that are closer to the mid-RF side.

[0073] Figure 1D An exemplary schematic diagram illustrating an application scenario provided by an embodiment of this application is shown. For example... Figure 1DAs shown, a terminal can move from the coverage area of ​​the serving cell to the coverage area of ​​a neighboring cell. The neighboring cells of the serving cell can include candidate cells #1 to #5. Candidate cells #1 and #2 have the same coverage area, and candidate cells #3 and #4 have the same coverage area. It should be understood that... Figure 1D Taking five candidate cells as an example, in practical applications, the neighboring cells of the serving cell may include more or fewer candidate cells.

[0074] It should be understood that Figure 1D The application scenarios shown may include: one or more access network devices, and one or more terminals. For example, Figure 1D The serving cell and its neighboring cells are cells operating on the same access network equipment. For example, Figure 1D Candidate cells #1 and #2 are cells operating in the first access network equipment, candidate cells #3 and #4 are cells operating in the second access network equipment, and candidate cell #5 is a cell operating in the third access network equipment. For example, Figure 1D Candidate cell #1 and candidate cell #2 are cells operating in the first access network device, candidate cell #3 and candidate cell #4 are cells operating in the second access network device, candidate cell #5 is a cell operating in the third access network device, and the serving cell is a cell operating in the fourth access network device.

[0075] like Figure 1E As shown, in Figure 1D In the scenario shown, each cell in the serving cell and its neighboring cells can be configured with one or more carriers. In this application, a carrier can also be referred to as a component carrier (CC); a carrier in the serving cell can be referred to as the serving cell; after the terminal switches to a neighboring cell of the serving cell, the carrier in that neighboring cell can be referred to as the serving cell. Figure 1E This explanation uses one access network device and one terminal as an example. It should be understood that in practical applications, there may be more access network devices and / or more terminals.

[0076] The communication systems and service scenarios described in the embodiments of this application are for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided in the embodiments of this application. As those skilled in the art will know, with the evolution of network architecture and the emergence of new service scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

[0077] The relevant terms used in the embodiments of this application will be explained below. It should be noted that these explanations are for the purpose of making the embodiments of this application easier to understand, and should not be regarded as a limitation on the scope of protection claimed by this application.

[0078] 1. Reference signal (RS):

[0079] Reference signals, also known as pilot signals, reference sequences, or reference signals, are essential in communication systems for estimating uplink or downlink channels to transmit and receive data, obtain system synchronization and feedback channel information. Channel estimation refers to the process of reconstructing or recovering the received signal to compensate for signal distortion caused by channel fading and noise fading. It uses known reference signals from both the transmitter and receiver to track the time and frequency domain variations of the channel. These reference signals, also called reference signals, are distributed across one or more resource elements (REs) in the time-frequency two-dimensional space within orthogonal frequency division multiplexing (OFDM) symbols, and have known amplitude and phase.

[0080] At the physical layer, uplink communication may include the transmission of uplink physical channels and uplink signals. For example, the uplink physical channel may include at least one of the following: a random access channel (PRACH), a physical uplink control channel (PUCCH), or a physical uplink shared channel (PUSCH); the uplink signal may include at least one of the following: a sounding reference signal (SRS), an uplink demodulation reference signal (DMRS), or an uplink phase noise tracking reference signal (PTRS).

[0081] At the physical layer, downlink communication may include the transmission of downlink physical channels and downlink signals. For example, the downlink physical channel may include at least one of the following: a physical broadcast channel (PBCH), a physical downlink control channel (PDCCH), or a physical downlink shared channel (PDSCH); the downlink signal may include at least one of the following: a channel status information reference signal (CSI-RS), a cell specific reference signal (CS-RS), a user equipment specific reference signal (US-RS), downlink DMRS, downlink PTRS, or a synchronization signal / physical broadcast channel block (SS / PBCH block). The SS / PBCH block can be abbreviated as synchronization signal block (SSB).

[0082] It should be understood that the reference signals listed above are merely examples and should not be construed as limiting this application. This application does not preclude the possibility of defining other reference signals in future agreements to achieve the same or similar functions.

[0083] In this application, the reference signal can come from the serving cell and / or candidate cells. The serving cell can be the current primary cell (Pcell). The candidate cell can also be called a handover candidate cell or a neighboring 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. Another example is that the PCI of the candidate cell is an additional PCI; in other words, the reference signal can be a reference signal associated with the additional PCI, i.e., a reference signal from a neighboring cell.

[0084] 2. Reference signal resources:

[0085] Reference signals can be configured as resources. Access network devices can configure various reference signals to terminals as resources. Each resource is a configuration information unit, which typically includes parameters related to a reference signal, such as the time-frequency resource location, number of ports, and time-domain type (periodic / semi-static / aperiodic). Transmitting devices can transmit reference signals based on reference signal resources, and receiving devices can receive reference signals based on reference signal resources.

[0086] To distinguish different reference signal resources, each reference signal resource may correspond to a reference signal resource identifier, such as a CSI-RS resource indicator (CRI), an SSB resource indicator (SSBRI), or an SRS resource index (SRI).

[0087] In this application, the reference signal resource to be measured may be a reference signal resource associated with the candidate cell configuration. Optionally, the terminal may be configured with one or more candidate cells, and the configuration of each candidate cell may include the configuration of the reference signal resource.

[0088] 3. Beam:

[0089] Mobile communication systems (such as 5G mobile communication systems) can employ high-frequency communication, meaning they use high-frequency signals to transmit data. A major problem with high-frequency communication is that signal energy decreases sharply with transmission distance, resulting in short transmission ranges. To overcome this problem, high-frequency communication uses analog beamforming technology. By weighting the antenna array, the signal energy is concentrated within a small angular range, forming a beam-like signal (called an analog beam, or simply a beam), thereby increasing the transmission distance. Access network equipment and terminals can both use beamforming for transmission.

[0090] In protocols (e.g., NR protocol), beams can be referred to as spatial domain filters, spatial filters, spatial domain parameters, spatial parameters, spatial domain settings, spatial settings, quasi-colocation (QCL) information, QCL assumptions, or QCL indications, etc. Beams can also be represented by transmission configuration indicator state parameters or spatial relation parameters. The English terms for transmission configuration indicator state include transmission configuration indicator state (TCI-state), transmission configuration indication state (TCI-state), and transmission configuration index state (TCI-state), etc. Therefore, in this application, "beam" can be replaced by spatial filter, spatial filter, spatial parameter, spatial parameter, spatial setting, spatial setting, QCL information, QCL assumption, QCL indication, TCI-state (e.g., downlink TCI-state, DL TCI-state, and / or uplink TCI-state, UL TCI-state), or spatial relationship, etc. The above terms are also equivalent to each other. "Beam" can also be replaced with other beam-related terms, which are not limited in this application.

[0091] The beam used to transmit signals can be called 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.

[0092] The beam used to receive signals can be called 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.

[0093] The transmitting beam can refer to the distribution of signal strength in different directions in space after a signal is transmitted through an antenna, while the receiving beam can refer to the distribution of signal strength in different directions in space of a wireless signal received from an antenna.

[0094] Furthermore, the beam can be a wide beam, a narrow beam, or other types of beam. The beamforming technology can be beamforming technology or other technologies. Beamforming technology can be, for example, digital beamforming technology, analog beamforming technology, or hybrid beamforming technology.

[0095] Beams are generally associated with resources. For example, during beam measurement, access network equipment measures different beams using different resources. The terminal provides feedback on the measured resource quality, allowing the access network equipment to determine the quality of the corresponding beam. In data transmission, beams can also be indicated by their corresponding resources. For instance, beams can be indicated by at least one of the following resources: SSB resources, CSI-RS resources, SRS resources, DMRS resources, or PTRS resources. Specifically, SSB resources can be resources used for transmitting SSBs; CSI-RS resources can be resources used for transmitting CSI-RSs; SRS resources can be resources used for transmitting SRSs; DMRS resources can be resources used for transmitting DMRSs; and PTRS resources can be resources used for transmitting PTRSs.

[0096] In some implementations, access network devices can indicate the PDSCH beam information of the terminal through the transmission configuration indicator (TCI) field in the downlink control information (DCI). The English terms for transmission configuration indicator (TCI), transmission configuration indication (TCI), or transmission configuration index (TCI) may include these.

[0097] Optionally, multiple beams with the same or similar communication characteristics can be considered as a single beam. A beam may include one or more antenna ports for transmitting data channels, control channels, and detection signals, etc. One or more antenna ports forming a beam can also be considered as a set of antenna ports.

[0098] 4. Reporting of measurement results:

[0099] The terminal can measure reference signals from access network equipment and report the measurement results, which may include the measurement results of the reference signals. The access network equipment can determine transmission parameters based on the measurement report. For example, the access network equipment can transmit multiple reference signals, which may be transmitted using different time-frequency domain resources or different beams. By measuring and reporting the measurement results of multiple reference signals, the terminal can help the access network equipment determine the transmission parameters (such as beam, channel coding rate, etc.) for subsequent communication transmission.

[0100] In scenarios involving terminal movement between multiple cells, the access network equipment can determine whether the terminal needs to prepare for handover, and / or whether the terminal needs to perform a handover, based on the measurement results of the reference signals of the serving cell and / or neighboring cells reported by the terminal. The preparation for handover may 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 core network or the equipment of the neighboring cell, or the serving cell instructs the terminal to begin acquiring uplink timing for candidate neighboring cells (or candidate cells). In this application, a neighboring cell may also be referred to as an adjacent cell, or a cell adjacent to the serving cell. A neighboring cell may be geographically adjacent to the serving cell, or logically adjacent to the serving cell.

[0101] In some possible scenarios, the access network device (ADN) has the primary control over the terminal's measurement result reporting process. That is, the ADN determines when the terminal should report its measurement results; or, in other words, the terminal's measurement result reporting is based on the ADN's instructions or configuration. The ADN can configure the terminal to report measurement results using one of three methods: periodic reporting, semi-persistent reporting, or aperiodic reporting. Semi-persistent reporting is also known as semi-static reporting.

[0102] Periodic Reporting: The access network device sends reference signal resource configuration information to the terminal. This reference signal resource configuration information includes periodic reference signal resources. The access network device configures the terminal's periodic measurement reference signals. The terminal can periodically measure the reference signals based on this reference signal resource configuration information and periodically report the measurement results. Optionally, in periodic reporting, the measurement results can be carried on PUCCH resources.

[0103] Semi-continuous reporting:

[0104] In some possible approaches, the terminal periodically measures the reference signal, but reports the measurement results using a semi-persistent reporting method. For example, the access network device sends reference signal resource configuration information to the terminal. This reference signal resource configuration information includes periodic reference signal resources. The access network device configures the terminal's periodic measurement reference signal. When the terminal receives an activation signaling from the access network device (e.g., a medium access control-control element (MAC CE) or DCI), the terminal can continuously report the measurement results. Of course, the access network device can also send a deactivation command to the terminal, thereby deactivating the terminal's semi-persistent reporting process.

[0105] In other possible implementations, both the measurement of the reference signal and the reporting of the measurement results are semi-persistent. When the terminal receives an activation signaling message from the access network device, the terminal continuously measures the reference signal and reports the measurement results. When the terminal receives a deactivation command from the access network device, the terminal stops reporting the measurement results. Optionally, a semi-persistent reporting method can be used to report the semi-persistent CSI-RS measurement results.

[0106] Optionally, in semi-continuous reporting, measurement results can be carried on either the PUCCH or PUSCH resource.

[0107] Aperiodic reporting: When the terminal receives a trigger command (e.g., DCI) from the access network device, the terminal measures a 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 an aperiodic reference signal. Optionally, in aperiodic reporting, the measurement result can be carried in the PUSCH resource.

[0108] For example, access network devices can be configured to periodically report L1 measurement results, where L1 can also be referred to as the physical layer. The measurement results reported by the terminal may include the identifier of the reported reference signal and the corresponding reference signal receiving power (RSRP). Table 1 shows a format for measurement results reported by the terminal in the protocol. The CRI and SSBRI fields can be used to indicate the index of the reference signal to be reported. The terminal can report either CRI or SSBRI, or both. RSRP characterizes the quality of the corresponding reference signal. RSRP reporting can employ a differential reporting criterion. For example, the RSRP of the best reference signal can be reported using 7-bit quantization through the RSRP field in Table 1; the RSRP of other reference signals can be reported using 4-bit quantization through the differential RSRP field in Table 1. It should be understood that the measurement results reported by the terminal may include one or more CRI fields and / or SSBRI fields, and / or may include one or more differential RSRP fields. For example, the measurement results reported by the terminal may include the identifiers of four reference signals and the RSRPs corresponding to the four reference signals.

[0109] Table 1

[0110]

[0111] This approach results in significant uplink resource overhead. For example, access network equipment must pre-allocate measurement result reporting resources to the terminal before the terminal can report. In mobility scenarios, if the access network equipment allocates measurement result reporting resources for neighboring cells to the terminal too early, it can easily lead to resource waste. This is because: if the quality of the current serving cell is good, even if the terminal measures and reports the reference signal from the neighboring cell, the access network equipment will not perform any additional operations. If the access network equipment allocates measurement result reporting resources for neighboring cells to the terminal too late, it can easily cause handover failure. This is because: if the quality of the current serving cell is already poor, even if the terminal receives the configuration and instructions for measurement reporting, the terminal's uplink transmission power is limited, resulting in a higher probability of failure to report measurement results, thus easily causing handover failure.

[0112] In other possible approaches, the terminal can trigger the reporting of measurement results; this approach can be called UE-triggered measurement and report (UTC). In this approach, the access network device can pre-configure the conditions for the terminal to trigger measurement reporting. These conditions can also be called events, and the triggering criteria for different events can vary. When an event is triggered (or met), the terminal can report the measurement results related to that event.

[0113] For example, the pre-configured events for terminal-triggered measurement reporting in the access network equipment include: 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 results related to this event.

[0114] Optionally, in this approach, the access network device may also pre-configure reporting resources for terminals to report measurement results. When an event is triggered (or satisfied), the terminal can report the measurement results related to the event through these reporting resources. For example, the events pre-configured by the access network device for triggering terminal measurement reporting include: the signal quality of the reference signal of the current serving cell is less than a preset threshold. The pre-configured reporting resource for terminals to report measurement results 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 results related to the event through resource #1.

[0115] In this application, an event can refer to an event related to a UE-initiated report, an event related to a UE-initiated measurement result report, an event related to a report (or measurement result) after a terminal actively performs a measurement, or an event related to a specific condition for a terminal-initiated measurement result report. For example, a terminal can actively perform measurements (such as beam measurements or channel measurements) to obtain measurement results related to an event. As another example, a terminal can perform measurements based on a reference signal according to the configuration of reference signal resources to obtain measurement results related to an event. Yet another example is that a terminal actively performs measurements and reports the measurement results related to an event when specific conditions are met.

[0116] Optionally, events may include those already discussed during the standard discussion process, such as the signal quality of the reference signal of the current serving cell being less than a preset threshold; and / or the signal quality of the reference signal of the current serving cell being less than the signal quality of the reference signal of a candidate cell. Alternatively, events may include those discussed or defined during future standard discussions.

[0117] For example, in this application, the event may include, but is not limited to, at least one of the following:

[0118] 1. The beam quality of the serving cell or the group to which the serving cell belongs is less than the first threshold.

[0119] 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 the first offset.

[0120] 3. The sum of the beam quality and the second offset of the candidate cell or the group to which the candidate cell belongs is greater than the beam quality of the serving cell or the group to which the serving cell belongs.

[0121] 4. The beam quality of the candidate cell or the group to which the candidate cell belongs is greater than the second threshold.

[0122] 5. The beam quality of the serving cell or the group to which the serving cell belongs is less than the first threshold, and the beam quality of the candidate cell or the group to which the candidate cell belongs is greater than the second threshold.

[0123] Either the first offset or the second offset can be a positive number, 0, or a negative number. At least one of the first offset, the second offset, the first threshold, and the second threshold can be preset, such as as specified by a protocol; or it can be determined by the terminal; or it can be notified to the terminal by other devices (e.g., access network equipment or core network equipment).

[0124] Optionally, beam quality can be replaced by at least one of the following: the quality of some or all beams, the quality of the T beams with the highest quality, the average quality of the T beams with the highest quality, the quality of the T strongest beams, or the average quality of the T strongest beams. T is an integer greater than or equal to 1. The average quality of the T beams can have various forms, such as a linear average of the quality of the T beams, or a weighted average of the quality of the T beams, etc.

[0125] As previously mentioned, beams generally correspond to resources. For example, a beam may correspond to a reference signal resource, and therefore, a beam may correspond to a reference signal transmitted on that reference signal resource. The beam quality of the serving cell or the group to which the serving cell belongs may be replaced by at least one of the following: the reference signal resource quality of the serving cell or the group to which the serving cell belongs, or the signal quality of a 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 may be replaced by at least one of the following: the reference signal resource quality of the candidate cell or the group to which the candidate cell belongs, or the signal quality of a reference signal from the candidate cell or the group to which the candidate cell belongs.

[0126] Optionally, the signal quality of the reference signals can be replaced by at least one of the following: the signal quality of some or all of the reference signals, the quality of the T reference signals with the highest quality, the average quality of the T reference signals with the highest quality, the quality of the T strongest reference signals, or the average quality of the T strongest reference signals. T is an integer greater than or equal to 1. The average quality of the T reference signals can have various forms, such as a linear average of the qualities of the T reference signals, or a weighted average of the qualities of the T reference signals, etc.

[0127] In this application, the event may also have other names, such as trigger event, L1 trigger event, CSI measurement reporting trigger event, beam measurement reporting trigger event, L1CSI reporting trigger event, or L1 beam measurement reporting trigger event, etc. As long as they have the same function, they are all within the scope of protection of this application.

[0128] 5. Signal quality:

[0129] In this application, signal quality may be represented by, but is not limited to, at least one of the following: RSRP, signal-to-interference plus noise ratio (SINR), layer 1 reference signal receiving power (L1-RSRP), layer 1 signal-to-interference plus noise ratio (L1-SINR), synchronization signal-reference signal receiving power (SS-RSRP), channel status information-reference signal receiving power (CSI-RSRP), synchronization signal-to-interference plus noise ratio (SS-SINR), or channel status information-signal-to-interference plus noise ratio (CSI-SINR).

[0130] It should be understood that the parameters described above are merely examples of signal quality and are not intended to limit the scope of protection of this application. In practical applications, other parameters may also be used to represent signal quality, without limitation.

[0131] 6. In this application, a cell may include a serving cell and / or neighboring cells of the serving cell. The serving cell may be the current serving cell of the first device. The serving cell may be a Pcell, a secondary cell (Scell), or a primary secondary cell (PScell). The neighboring cells of the serving cell may be, for example, the cells corresponding to additional PCIs.

[0132] 7. In this application, "instruction" or "for instruction" may include explicit instruction (or direct instruction) and implicit instruction (or indirect instruction). When describing information for instructing A, it may include whether the information explicitly instructs A or implicitly instructs A, but does not necessarily mean that the information carries A.

[0133] The indication methods involved in the embodiments of this application should be understood to cover various methods that enable the party to be indicated to obtain the information to be indicated. The information to be indicated can be sent as a whole or divided into multiple sub-information and sent separately. Moreover, the sending period and / or sending time of these sub-information can be the same or different, without limitation.

[0134] In the embodiments of this application, "information" can be an explicit indication, that is, a direct indication through signaling, or obtained by combining other rules or parameters with parameters indicated by signaling, or by deduction. It can also be an implicit indication, that is, obtained based on rules or relationships, or based on other parameters, or by deduction. No limitation is imposed.

[0135] 8. In this application, communication between different devices can refer to direct communication between different devices (i.e., without the need for relaying or forwarding by other devices), or communication between different devices through other devices (i.e., requiring relaying or forwarding by other devices), or communication between a functional unit within a device and other devices through another functional unit. For example, "sending information to…(terminal)" can be understood as the destination of the information being the terminal, and may include sending information directly or indirectly to the terminal. "Receiving information from…(terminal)" can be understood as the source of the information being the terminal, and may include receiving information directly or indirectly from the terminal. Information may undergo necessary processing between the source and destination ends, such as format changes, digital-to-analog conversion, amplification, filtering, etc., but the destination end can understand the valid information from the source end. Similar expressions in this application can be understood in a similar way, and will not be elaborated further here.

[0136] 9. In this application, the words "exemplarily," "for example," "for instance," and "example" are used to indicate examples, illustrations, or descriptions, and are not intended to limit the scope of protection of this application. It should be understood that the examples in this application may also be implemented in other ways.

[0137] 10. In this application, any two of the programs, instructions and code may be substituted for one another.

[0138] 11. In this application, transmission may include sending and / or receiving.

[0139] 12. In this application, greater than can be replaced with greater than or equal to; and / or, less than can be replaced with less than or equal to.

[0140] 13. In this application, a group may include one or more cells. For example, a group may include one or more candidate cells. Also, for example, a group may include one or more candidate cells and a serving cell.

[0141] The group may 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, etc., as long as they have the same meaning, they are all within the scope of protection of this application.

[0142] 14. In this application, the identifier of the reference signal is, for example, the resource identifier or logical identifier corresponding to the reference signal.

[0143] 15. In this application, the first event is an event used to trigger the terminal to send L1 measurement results to the access network device; or, the first event is an event used to trigger the first device to send L1 measurement results to the second device; or, the first event is an event used to trigger the sending of a measurement report.

[0144] As mentioned earlier, the terminal can trigger the reporting of measurement results based on events. In this case, how the terminal reports a measurement report including the measurement results requires further investigation. For example, in a scenario involving the terminal moving between multiple cells, the terminal can be configured with multiple candidate cells; for instance, the terminal can be configured with up to eight candidate cells. The terminal can measure multiple reference signals from each candidate cell. If, based on the measurement results, multiple candidate cells are determined to satisfy the event, the terminal can report the measurement results of the reference signals from those multiple candidate cells. How to sort the measurement results of the reference signals from those multiple candidate cells in the reported measurement report requires further investigation. Furthermore, if there are significant differences in signal quality between reference signals from different candidate cells, how to improve the accuracy of the reported signal quality of reference signals from different candidate cells requires further investigation.

[0145] This application provides a communication method. Figure 2 This is a flowchart illustrating the communication method provided in the embodiments of this application. Figure 2The following example illustrates the method using the first and second devices as the execution entities in this interactive illustration. The first device can be a terminal or a device within a terminal (e.g., a module, circuit, chip (such as a modem chip, or a SoC chip or SIP chip containing a modem core), chip system, or processor), or a logical node, logical module, or software that implements all or part of the terminal's functions. The second device can be an access network device or a device within an access network device (e.g., a module, circuit, chip (such as a modem chip, or a SoC chip or SIP chip containing a modem core), chip system, or processor), or a logical node, logical module, or software that implements all or part of the access network device's functions.

[0146] like Figure 2 As shown, the method includes:

[0147] S201: The first device receives reference signals from M cells, where M is an integer greater than 1.

[0148] The M cells may include cells operating in one or more access network devices. All M cells may be candidate cells, or they may include serving cells and candidate cells. Reference signals from each of the M cells may be one or more.

[0149] This application does not limit the specific method by which the first device receives reference signals from M cells. For example, the second device may send information to the first device indicating the reference signal resources of the M cells, and the first device may receive the reference signals from the M cells based on the reference signal resources of the M cells.

[0150] This application does not restrict the transmission method of the reference signal from the M cells. For example, the reference signal from each of the M cells can be transmitted periodically or aperiodically.

[0151] S202: The first device sends a measurement report; correspondingly, the second device receives the measurement report.

[0152] The measurement report may include measurement results of reference signals from M1 candidate cells. For example, the measurement report may include measurement results of some or all of the reference signals from M1 candidate cells. M1 is a positive integer.

[0153] In this application, the M1 candidate cells can belong to M cells, where M1 can be less than or equal to M. For example, the M1 candidate cells can be all of the M cells, i.e., M1 = M. Alternatively, the M1 candidate cells can be some of the M cells, in which case M1 can be less than M.

[0154] The M1 candidate cells may be associated with a first event used to trigger the transmission of the measurement report. The reference signal triggering the first event may come from the serving cell and / or the candidate cells. Optionally, the third cell may be any one of the M1 candidate cells. The third cell may satisfy at least one of the following conditions #1 to #3; accordingly, the first device may select a third cell from the M cells that satisfies at least one of the following conditions #1 to #3, thereby determining the M1 cells.

[0155] Condition #1: The reference signal that triggers the first event includes a reference signal from the third cell; in other words, the first event is triggered based on the measurement result of the reference signal from the third cell.

[0156] For example, the first event is: the signal quality of the reference signal from the candidate cell or the group to which the candidate cell belongs is greater than the second threshold. If the first device receives (or detects) a reference signal #1 from candidate cell #1 whose signal quality is greater than the second threshold, then the reference signal that triggers the first event includes reference signal #1, and candidate cell #1 satisfies condition #1.

[0157] For example, the first event is: 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 of the reference signal #1 from the candidate cell #1, then the reference signal that triggers the first event includes the reference signal from the serving cell and the reference signal #1, and the candidate cell #1 satisfies condition #1.

[0158] For example, the first event is: 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 the first offset. If the first device receives (or detects) a reference signal #1 from candidate cell #1 with signal quality #1, and a reference signal from the serving cell with signal quality #2, and signal quality #1 is greater than the sum of signal quality #2 and the first offset, then the reference signals that trigger the first event include the reference signal from the serving cell and reference signal #1, and candidate cell #1 satisfies condition #1.

[0159] For example, the first event is: the sum of the signal quality and the second offset of the reference signal from the candidate cell or the group to which the candidate cell belongs is greater than the signal quality of the reference signal from the serving cell or the group to which the serving cell belongs. If the first device receives (or detects) a reference signal #1 from candidate cell #1 with signal quality #1, a reference signal from the serving cell with signal quality #2, and the sum of signal quality #1 and the second offset is greater than signal quality #2, then the reference signals that trigger the first event include the reference signal from the serving cell and reference signal #1, and candidate cell #1 satisfies condition #1.

[0160] For example, the first event is: the signal quality of the reference signal from the serving cell or the group to which the serving cell belongs is less than a first threshold, and 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 first device receives (or detects) a reference signal #1 from candidate cell #1 with signal quality #1, a reference signal from the serving cell with signal quality #2, signal quality #1 is greater than the second threshold, and signal quality #2 is less than the first threshold, then the reference signals that trigger the first event include the reference signal from the serving cell and reference signal #1, and candidate cell #1 satisfies condition #1.

[0161] Condition #2: The reference signal that triggers the first event may come from the serving cell; in other words, the first event is triggered based on the measurement result of the reference signal from the serving cell. The third cell may be a cell determined based on the first event or the first rule.

[0162] In some implementations, the third cell can be configured with associated cells for the first event. For example, the first event is: the signal quality of the reference signal from the serving cell is less than a first threshold. The cells associated with the first event configuration include candidate cell #1 and candidate cell #2. If the signal quality of the reference signal received by the first device from the serving cell is less than the first threshold, then the reference signal from the serving cell is the reference signal that triggers the first event, and candidate cell #1 and candidate cell #2 satisfy condition #2.

[0163] In other implementations, the third cell may be a cell determined based on the first rule. The first rule may be pre-defined, such as as specified in a protocol; or it may be determined by the first device; or it may be notified to the first device by another device (the second device or core network equipment).

[0164] In some examples, the first event is: the signal quality of the reference signal from the serving cell is less than a first threshold. The first rule can be: selecting all candidate cells of the first device. For example, if the candidate cells of the first device include candidate cell #1 and candidate cell #2, and the signal quality of the reference signal received by the first device from the serving cell is less than the first threshold, then the reference signal from the serving cell is the reference signal that triggers the first event, and candidate cell #1 and candidate cell #2 satisfy condition #2.

[0165] In other examples, the first event is: the signal quality of the reference signal from the serving cell is less than a first threshold. The first rule can be: selecting candidate cells whose reference signal quality is greater than a second threshold. For example, if the signal quality of the reference signals from candidate cell #1 and candidate cell #2 is greater than the second threshold, and the signal quality of the reference signal received by the first device from the serving cell is less than the first threshold, then the reference signal from the serving cell is the reference signal that triggers the first event, and candidate cell #1 and candidate cell #2 satisfy condition #2.

[0166] Condition #3: The reference signal that triggers the first event can come from the fifth cell; in other words, the first event is triggered based on the measurement result of the reference signal from the fifth cell. The third cell can be a candidate cell in the group to which the fifth cell belongs.

[0167] For example, the first event is: the signal quality of the reference signal from the serving cell or the 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 device is less than the first threshold, and the serving cell belongs to group #1, then the reference signal from the serving cell is the reference signal that triggers the first event, and the candidate cell in group #1 satisfies condition #3.

[0168] For example, the first event is: the signal quality of the reference signal from the candidate cell or the group to which the candidate cell belongs is greater than the second threshold. If the first device receives (or detects) a reference signal #1 from candidate cell #1 whose signal quality is greater than the second threshold, and candidate cell #1 belongs to group #2, then reference signal #1 is the reference signal that triggers the first event, and the candidate cell in group #2 satisfies condition #3.

[0169] For example, the first event is: 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. 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 of the reference signal #1 from candidate cell #1, the serving cell belongs to group #1, and candidate cell #1 belongs to group #2, then the reference signal from the serving cell and reference signal #1 are the reference signals that trigger the first event, and the candidate cells in group #1 and group #2 satisfy condition #3.

[0170] For example, the first event is: 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 the first offset. If the first device receives (or detects) a reference signal #1 from candidate cell #1 with signal quality #1, and a reference signal from the serving cell with signal quality #2, and signal quality #1 is greater than the sum of signal quality #2 and the first offset, the serving cell belongs to group #1, and candidate cell #1 belongs to group #2, then the reference signal from the serving cell and reference signal #1 are the reference signals that trigger the first event, and the candidate cells in group #1 and group #2 satisfy condition #3.

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

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

[0173] In the measurement report, the measurement results of the reference signals from the M1 candidate cells are ordered according to at least one of the following: the signal quality of the reference signals from the M1 candidate cells, or the relationship between the M1 candidate cells and the first event.

[0174] The first cell and the second cell are any two cells from the M1 candidate cells. The following uses the first cell and the second cell as examples to illustrate how the measurement results of the reference signals from the M1 candidate cells are sorted in the measurement report. In the measurement report, there can be multiple sorting methods for the measurement results of the reference signals from the first cell and the second cell, such as at least one of methods a1 to a5.

[0175] Method a1: When the signal quality of the first reference signal is greater than that of the second reference signal, the measurement result of the reference signal from the first cell is placed before the measurement result of the reference signal from the second cell.

[0176] In some implementations, the first reference signal may be the reference signal with the highest signal quality from the first cell, and the second reference signal may be the reference signal with the highest signal quality from the second cell.

[0177] In some examples, the first reference signal is the reference signal with the highest signal quality from the first cell. This can be understood as: the first reference signal may be the reference signal with the highest signal quality from the first cell reported by the first device, or the first reference signal may be the reference signal with the highest signal quality from the first cell in the measurement report. The second reference signal is the reference signal with the highest signal quality from the second cell. This can be understood as: the second reference signal may be the reference signal with the highest signal quality from the second cell reported by the first device, or the second reference signal may be the reference signal with the highest signal quality from the second cell in the measurement report.

[0178] For example, if the reference signals received by the first device from the first cell include reference signals #1 to #3, with signal quality in descending order, and the measurement report includes measurement results for reference signals #2 to #3, then the first reference signal can be reference signal #2. If the reference signals received by the first device from the second cell include reference signals #4 to #6, with signal quality in descending order, and the measurement report includes measurement results for reference signals #4 to #5, then the second reference signal can be reference signal #4.

[0179] In other examples, the first reference signal is the reference signal with the highest signal quality from the first cell, which can be understood as: the first reference signal can be the reference signal with the highest signal quality from the first cell received by the first device. The second reference signal is the reference signal with the highest signal quality from the second cell, which can be understood as: the second reference signal can be the reference signal with the highest signal quality from the second cell received by the first device. Optionally, in this example, the measurement results of the first reference signal and / or the measurement results of the second reference signal may be included in the measurement report, or may not be included in the measurement report.

[0180] For example, if the reference signal received by the first device from the first cell includes reference signal #1 to reference signal #3, and the reference signal with the highest signal quality among reference signal #1 to reference signal #3 is reference signal #1, then the first reference signal can be reference signal #1. If the reference signal received by the first device from the second cell includes reference signal #4 to reference signal #6, and the reference signal with the highest signal quality among reference signal #4 to reference signal #6 is reference signal #4, then the second reference signal can be reference signal #4. The measurement results of reference signal #1 and / or reference signal #4 may be included in the measurement report, or may not be included in the measurement report.

[0181] In other implementations, the first reference signal may be a reference signal from the first cell whose signal quality is greater than a third threshold, and the second reference signal may be a reference signal from the second cell whose signal quality is greater than the third threshold. The third threshold may be preset, such as as specified in a protocol; or it may be determined by the first device; or it may be notified to the first device by other devices (e.g., core network equipment or a second device).

[0182] In some examples, the first reference signal is a reference signal from the first cell whose signal quality is greater than the third threshold. This can be understood as: the first reference signal may be a reference signal from the first cell reported by the first device whose signal quality is greater than the third threshold, or the first reference signal may be a reference signal from the first cell in the measurement report 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. This can be understood as: the second reference signal may be a reference signal from the second cell reported by the first device whose signal quality is greater than the third threshold, or the second reference signal may be a reference signal from the second cell in the measurement report whose signal quality is greater than the third threshold.

[0183] For example, if the reference signal received by the first device from the first cell includes reference signals #1 to #3, the signal quality of reference signals #1 and #2 is greater than a third threshold, and the measurement report includes the measurement results of reference signals #2 to #3, then the first reference signal can be reference signal #2. If the reference signal received by the first device from the second cell includes reference signals #4 to #6, the signal quality of reference signal #4 is greater than a third threshold, and the measurement report includes the measurement results of reference signals #4 to #5, then the second reference signal can be reference signal #4.

[0184] In other examples, the first reference signal is a reference signal from the first cell whose signal quality is greater than a third threshold. This can be understood as: 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. This can be understood as: 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 results of the first reference signal and / or the measurement results of the second reference signal may be included in the measurement report, or they may not be included in the measurement report.

[0185] For example, if the reference signal received by the first device from the first cell includes reference signals #1 to #3, and the signal quality of reference signal #1 is greater than a third threshold, then the first reference signal can be reference signal #1. If the reference signal received by the first device from the second cell includes reference signals #4 to #6, and the signal quality of reference signal #4 is greater than a third threshold, then the second reference signal can be reference signal #4. The measurement results of reference signal #1 and / or reference signal #4 may be included in the measurement report, or may not be included in the measurement report.

[0186] Optionally, in this implementation, if there are Q1 reference signals with signal quality greater than a third threshold from the first cell, where Q1 is an integer greater than 1, then the first reference signal can be one of these Q1 reference signals. For example, the first reference signal can be any one of the Q1 reference signals. Another example is that the first reference signal can be the reference signal with the highest signal quality among the Q1 reference signals. Yet another example is that the first reference signal can be the reference signal with the lowest signal quality among the Q1 reference signals.

[0187] If there are Q2 reference signals from the second cell whose signal quality is greater than the third threshold, where Q2 is an integer greater than 1, then the second reference signal can be one of these Q2 reference signals. For example, the second reference signal can be any one of the Q2 reference signals. Another example is that the second reference signal can be the reference signal with the highest signal quality among the Q2 reference signals. Yet another example is that the second reference signal can be the reference signal with the lowest signal quality among the Q2 reference signals.

[0188] The following example illustrates the sorting method in method a1.

[0189] For example, in the measurement report, the measurement results of the reference signals from the first cell include the measurement results of reference signals #2 to #3; the measurement results of the reference signals from the second cell include the measurement results of reference signals #4 to #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, then as shown in Table 2A, in the measurement report, the measurement results of reference signals #2 to #3 can be placed before the measurement results of reference signals #4 to #5.

[0190] Table 2A

[0191] Measurement results Measurement results of reference signal #2 Measurement results of reference signal #3 Measurement results of reference signal #4 Measurement results of reference signal #5

[0192] Optionally, the measurement report may include the reference signal's identifier and its corresponding measurement result (e.g., signal quality). For example, Table 2A can be replaced by Table 2B. The representation of signal quality can be found in the explanation of signal quality in the terminology section above, and will not be repeated here.

[0193] Table 2B

[0194] Reference signal identification Signal quality Identification of reference signal #2 Signal quality of reference signal #2 Reference signal #3 identifier Signal quality of reference signal #3 Reference signal #4 identifier Signal quality of reference signal #4 Reference signal #5 identifier Signal quality of reference signal #5

[0195] It should be understood that Tables 2A and 2B are merely examples. In practical applications, measurement results with more or fewer reference signals may be included.

[0196] Optionally, method a1 can also be understood as: for candidate cells with higher reference signal quality, the measurement results of their corresponding reference signals should be placed earlier in the measurement report.

[0197] By means of method a1, the first device can accurately determine the order of the measurement results of the reference signal from the first cell and the measurement results of the reference signal from the second cell in the measurement report based on the signal quality of the first reference signal and the second reference signal.

[0198] Method a2: When the first average signal quality is greater than the second average signal quality, the measurement result of the reference signal from the first cell is placed before the measurement result of the reference signal from the second cell.

[0199] Wherein, the first average signal quality is the average signal quality of the reference signal from the first cell, and the second average signal quality is the average signal quality of the reference signal from the second cell.

[0200] In this application, the average signal quality of the reference signal can take many forms. Examples of the average signal quality of the reference signal are given below.

[0201] In some examples, the average signal quality of the reference signals can be a linear average of the signal qualities of the reference signals. For example, the signal quality of reference signal #1 is signal quality #1, and the signal quality of reference signal #2 is signal quality #2. The average signal quality of reference signals #1 to #2 is (signal quality #1 + signal quality #2) / 2.

[0202] In other examples, the average signal quality of the reference signals can be a weighted average of the signal qualities of the reference signals. The weights corresponding to each reference signal can be pre-set, such as those specified by a protocol; or determined by the first device; or notified to the first device by another device (the second device or core network equipment). For example, the signal quality of reference signal #1 is signal quality #1, and the signal quality of reference signal #2 is signal quality #2. The average signal quality of reference signals #1 to #2 is (w1 * signal quality #1 + w2 * signal quality #2) / 2. Here, w1 is the weight corresponding to reference signal #1, and w2 is the weight corresponding to reference signal #2.

[0203] In other examples, the average signal quality of the reference signal can be calculated according to a second rule. This second rule can be pre-defined, such as as specified in a protocol; or determined by the first device; or notified to the first device by another device (the second device or core network equipment). For example, the second rule can be a first formula, which can be used to calculate the average signal quality of the reference signal.

[0204] In other examples, the average signal quality of the reference signal can be calculated based on the first parameter configuration. The first parameter configuration can be pre-set, such as as specified in a protocol; or it can be determined by the first device; or it can be notified to the first device by another device (a second device or core network equipment). For example, the first parameter configuration can be used to configure the parameters in a second formula, which can be used to calculate the average signal quality of the reference signal.

[0205] In some implementations, the first average signal quality is the average signal quality of the reference signal from the first cell. This can be understood as: the first average signal quality may be the average signal quality of the reference signal from the first cell reported by the first device, or the first average signal quality may be the average signal quality of the reference signal from the first cell in the measurement report. The second average signal quality is the average signal quality of the reference signal from the second cell. This can be understood as: the second average signal quality may be the average signal quality of the reference signal from the second cell reported by the first device, or the second average signal quality may be the average signal quality of the reference signal from the second cell in the measurement report.

[0206] For example, if the reference signals received by the first device from the first cell include reference signals #1 to #3, and the measurement report includes the measurement results of reference signals #2 to #3, then the first average signal quality can be the average signal quality of reference signals #2 to #3. If the reference signals received by the first device from the second cell include reference signals #4 to #6, and the measurement report includes the measurement results of reference signals #4 to #5, then the second average signal quality can be the average signal quality of reference signals #4 to #5.

[0207] In other implementations, the first average signal quality is the average signal quality of the reference signal from the first cell, which can be understood as: the first average signal quality may be the average signal quality of the reference signal from the first cell received by the first device. The second average signal quality is the average signal quality of the reference signal from the second cell, which can be understood as: the second average signal quality may be the average signal quality of the reference signal from the second cell received by the first device. Measurement results of some or all of the reference signals from the first cell may be included in the measurement report, and measurement results of some or all of the reference signals from the second cell may be included in the measurement report.

[0208] For example, if the reference signals received by the first device from the first cell include reference signals #1 to #3, then the first average signal quality can be the average signal quality of reference signals #1 to #3. If the reference signals received by the first device from the second cell include reference signals #4 to #6, then the second average signal quality can be the average signal quality of reference signals #4 to #6. The measurement results of some or all of the reference signals #1 to #3 can be included in the measurement report, and the measurement results of some or all of the reference signals #4 to #6 can be included in the measurement report.

[0209] The following example illustrates the sorting method in method a2.

[0210] For example, in the measurement report, the measurement results of the reference signals from the first cell include the measurement results of reference signals #2 to #3; the measurement results of the reference signals from the second cell include the measurement results of reference signals #4 to #5. If the first average signal quality is greater than the second average signal quality, then as shown in Table 2A above, in the measurement report, the measurement results of reference signals #2 to #3 can be placed before the measurement results of reference signals #4 to #5.

[0211] Optionally, the measurement results for the reference signal may include the reference signal and its signal quality in the measurement report. For example, Table 2A can be replaced by Table 2B above. The representation of signal quality can be found in the explanation of signal quality in the terminology section above, and will not be repeated here.

[0212] Optionally, method a2 can also be understood as follows: for candidate cells with higher average signal quality of reference signals, the measurement results of their corresponding reference signals will be placed earlier in the measurement report.

[0213] By means of method a2, the first device can accurately determine the order of the measurement results of the reference signal from the first cell and the measurement results of the reference signal from the second cell in the measurement report based on the first average signal quality and the second average signal quality.

[0214] Method a3: When the first cell belongs to the first group of candidate cells and the second cell belongs to the second group of candidate cells, the measurement result of the reference signal from the first cell is placed before the measurement result of the reference signal from the second cell.

[0215] The first group of candidate cells may include candidate cells related to the first event from among the M1 candidate cells. The second group of candidate cells includes candidate cells other than those in the first group from among the M1 candidate cells; or, the second group of candidate cells may include candidate cells unrelated to the first event from among the M1 candidate cells.

[0216] In some implementations, the first group of candidate cells may include candidate cells from M1 candidate cells that transmit a reference signal for triggering the first event; or, the reference signal for triggering the first event may include a reference signal from each cell in the first group of candidate cells, wherein the cells in the first group of candidate cells belong to M candidate cells; or, the first group of candidate cells may include candidate cells that satisfy condition #1 above.

[0217] For example, if candidate cells M1 include candidate cells #1 to #3, and the reference signal triggering the first event includes reference signal #1 from candidate cell #1 and reference signal #4 from candidate cell #2, then the first group of candidate cells includes candidate cells #1 to #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 cells #1 to #2 are placed before the measurement results from candidate cell #3.

[0218] In other implementations, the first group of candidate cells may include candidate cells from M1 candidate cells that are associated with the reference signal that triggered the first event. Optionally, the association between the reference signal and the candidate cells may be configured by the second device.

[0219] For example, if candidate cells M1 include candidate cells #1 to #3, and the reference signal triggering the first event includes reference signal #1, and reference signal #1 is associated with candidate cells #1 to #2, then the first group of candidate cells includes candidate cells #1 to #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 cells #1 to #2 are placed before the measurement results from candidate cell #3.

[0220] By means of method a3, the first device can accurately determine the order of the measurement results of the reference signal from the first cell and the measurement results of the reference signal from the second cell in the measurement report based on the relationship between the candidate cell and the first event.

[0221] Method a4: When 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 signal from the first cell and the measurement results of the reference signal 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 signal from the first cell and the measurement results of the reference signal from the second cell according to the group identifiers of the third group of candidate cells and the fourth group of candidate cells.

[0222] In some implementations, when the group identifier of the third group of candidate cells is less than that of the fourth group of candidate cells, the measurement result of the reference signal from the first cell precedes the measurement result of the reference signal from the second cell. For example, when 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 result of the reference signal from the first cell precedes the measurement result of the reference signal from the second cell.

[0223] In other implementations, when the group identifier of the third group of candidate cells is greater than that of the fourth group of candidate cells, the measurement result of the reference signal from the first cell precedes the measurement result of the reference signal from the second cell. For example, when the group identifier of the third group of candidate cells is 2 and the group identifier of the fourth group of candidate cells is 1, the measurement result of the reference signal from the first cell precedes the measurement result of the reference signal from the second cell.

[0224] The candidate cells and their group identifiers included in each group of candidate cells may be pre-defined, such as those specified in the protocol; or they may be determined by the first device; or they may be notified to the first device by other devices (e.g., the second device or core network equipment).

[0225] By means of method a4, the first device can accurately determine the order of the measurement results of the reference signal from the first cell and the measurement results of the reference signal from the second cell in the measurement report based on the group identifiers of the third group of candidate cells and the fourth group of candidate cells.

[0226] Method a5: The order of the measurement results of the reference signal from the first cell and the measurement results of the reference signal from the second cell is determined according to the identifiers of the first cell and the second cell; correspondingly, the first device can determine the order of the measurement results of the reference signal from the first cell and the measurement results of the reference signal from the second cell according to the identifiers of the first cell and the second cell.

[0227] In some implementations, when the identifier of the first cell is less than the identifier of the second cell, the measurement result of the reference signal from the first cell precedes the measurement result of the reference signal from the second cell. For example, when the identifier of the first cell is 1 and the identifier of the second cell is 2, the measurement result of the reference signal from the first cell precedes the measurement result of the reference signal from the second cell.

[0228] In other implementations, when the identifier of the first cell is greater than the identifier of the second cell, the measurement result of the reference signal from the first cell precedes the measurement result of the reference signal from the second cell. For example, when the identifier of the first cell is 2 and the identifier of the second cell is 1, the measurement result of the reference signal from the first cell precedes the measurement result of the reference signal from the second cell.

[0229] In this application, the cell identifier can take many forms, such as a logical identifier configured for the cell, a PCI, an identifier associated with the configuration information of the candidate cell, or an identifier associated with a set of measurement resources.

[0230] By means of method a5, the first device can accurately determine the order of the measurement results of the reference signal from the first cell and the measurement results of the reference signal from the second cell in the measurement report based on the identifiers of the first cell and the second cell.

[0231] Any two of the methods a1 to a5 can be independent or can be combined with each other.

[0232] In some examples, method a1 can be combined with method a3. For example, if candidate cells M1 include candidate cells #1 to #3, and the reference signal triggering the first event includes reference signal #1 from candidate cell #1 and reference signal #4 from candidate cell #2, then the first group of candidate cells includes candidate cells #1 to #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 cells #1 to #2 are placed before the measurement results from candidate cell #3. If the reference signal with the highest signal quality from candidate cell #1 is reference signal #1, the reference signal with the highest signal quality from candidate cell #2 is reference signal #4, and the signal quality of reference signal #1 is greater than the signal quality of reference signal #2, then in the measurement report, the measurement result of the reference signal from candidate cell #1 is placed before the measurement result from candidate cell #2.

[0233] In other examples, method a2 can be combined with method a3. For example, if candidate cells M1 include candidate cells #1 to #3, and the reference signal triggering the first event includes reference signal #1 from candidate cell #1 and reference signal #4 from candidate cell #2, then the first group of candidate cells includes candidate cells #1 to #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 cells #1 to #2 are placed before the measurement results from candidate cell #3. If the average signal quality of the reference signal from candidate cell #1 is average signal quality #1, the average signal quality of the reference signal from candidate cell #2 is average signal quality #2, and average signal quality #1 is greater than average signal quality #2, then in the measurement report, the measurement result of the reference signal from candidate cell #1 is placed before the measurement result from candidate cell #2.

[0234] In some possible ways, the sorting of the measurement results of the reference signal from the first cell and the measurement results of the reference signal from the second cell can be pre-set, such as as specified by a protocol; or it can be determined by the first device; or it can be notified to the first device by other devices (e.g., the second device and the core network equipment).

[0235] Optionally, the measurement results of the reference signals from the M1 candidate cells may further include: the identifier of each candidate cell in the M1 candidate cells. 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 candidate cell #1 include: the identifier of candidate cell #1, and the measurement results of reference signals #2 to #3; the measurement results of the reference signals from candidate cell #2 include: the identifier of candidate cell #2, and the measurement results of reference signals #4 to #5. If the measurement results of the reference signals from candidate cell #1 precede the measurement results of the reference signals from candidate cell #2 in the measurement report, then the measurement report may be as shown in Table 3A.

[0236] Table 3A

[0237]

[0238] Optionally, the measurement report may include the reference signal's identifier and its corresponding measurement result (e.g., signal quality). For example, Table 3A can be replaced by Table 3B. The representation of signal quality can be found in the explanation of signal quality in the terminology section above, and will not be repeated here.

[0239] Table 3B

[0240]

[0241] It should be understood that Tables 3A and 3B are merely examples. In practical applications, more or fewer cell identifiers may be included, as well as more or fewer reference signal measurement results.

[0242] In this method, the measurement results of the reference signals from the M1 candidate cells may further include: the identifier of each candidate cell among the M1 candidate cells. Thus, the second device can accurately determine which candidate cell's reference signal the measurement result originates from based on the identifier of each candidate cell.

[0243] In some possible approaches, the first cell and the second cell are any two cells from the M1 candidate cells. Figure 2 The method shown also includes S203 and S204:

[0244] S203: The second device sends the first information; correspondingly, the first device receives the first information.

[0245] Wherein, the first information is used to indicate a 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; in other words, the first information is used to indicate the number of reference signals corresponding to the measurement results of the reference signals from the first cell in the measurement report. Accordingly, the first device can select a first quantity of reference signals from the reference signals from the first cell and include the measurement results of the first quantity of reference signals in the measurement report.

[0246] For example, if the first quantity indicated by the first information is 2, the measurement report may include the measurement results of two reference signals from the first cell. If the reference signals from the first cell include reference signals #1 to #3, the first device may select two reference signals from reference signals #1 to #3. If the two reference signals selected by the first device are reference signals #1 to #2, the first device may include the measurement results of reference signals #1 to #2 in the measurement report.

[0247] As previously stated, the first device can select a first number of reference signals from the reference signals from the first cell, and the selection can be done in various ways, such as any one of modes b1 to b3.

[0248] Method b1: The first device can arbitrarily select a first number of reference signals from the reference signals from the first cell.

[0249] For example, if the reference signals from the first cell include reference signals #1 to #3 and the first quantity is 2, the first device can arbitrarily select 2 reference signals from reference signals #1 to #3.

[0250] Method b2: The first device may select a first number of reference signals with the highest signal quality from the reference signals from the first cell.

[0251] For example, when the reference signals from the first cell include reference signals #1 to #3, the signal quality is in descending order as reference signals #1 to #3, and the first quantity is 2, the two reference signals selected by the first device from reference signals #1 to #3 include reference signals #1 to #2.

[0252] Method b3: The first device may select a first number of reference signals from the reference signals from the first cell whose signal quality is greater than a fourth threshold. The fourth threshold may be preset, such as as specified in a protocol; or it may be determined by the first device; or it may be notified to the first device by other devices (e.g., core network equipment or a second device).

[0253] For example, when the reference signals from the first cell include reference signals #1 to #3, the signal quality of reference signals #1 to #2 is greater than a fourth threshold, and the first quantity is 2, the two reference signals selected by the first device from reference signals #1 to #3 include: reference signals #1 to #2.

[0254] The initial information can be carried in a traditional message or in a new message, without restriction. For example, the initial information can be carried in an RRC message, MAC CE, or DCI. Alternatively, the initial information can be carried in a ReportConfig message, such as an event-triggered reportConfig message.

[0255] S204: The second device sends the second information; correspondingly, the first device receives the second information.

[0256] The second information indicates a 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; in other words, the second information indicates the number of reference signals corresponding to the measurement results of the reference signals from the second cell in the measurement report. Accordingly, the first device can select a 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.

[0257] The first quantity and the second quantity can be the same or different.

[0258] For details of S204, please refer to S203, except that the second information is replaced with the first information, the first quantity is replaced with the second quantity, and the first cell is replaced with the second cell. It will not be repeated here.

[0259] Optionally, steps S203 and S204 can precede step S202; this application does not limit the order of any step in S203 and S204 and step S201; this application does not limit the order of steps S203 and S204. The first information and the second information can be carried in the same message or in different messages, without restriction.

[0260] In this way, the number of reference signals corresponding to the measurement results of reference signals from each candidate cell in the measurement report is configurable, and the number of reference signals corresponding to the measurement results of reference signals from different cells can be the same or different. This allows the second device to flexibly manage the measurement reports reported by the first device. For example, for candidate cells related to the first event, the second device can be configured to report more reference signal measurement results from the first device; for candidate cells unrelated to the first event, the second device can be configured to report fewer reference signal measurement results from the first device, thereby improving the efficiency and accuracy of mobility management performed by the second device based on the measurement results.

[0261] In some possible configurations, the M cells also include a serving cell; in other words, the M cells include M1 candidate cells and a serving cell. The M1 candidate cells and the serving cell can be some or all of the M cells. The measurement report in S202 also 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.

[0262] For details regarding the M1 candidate cells, please refer to the description of the M1 candidate cells in S202; for details regarding the measurement results of the reference signals from the M1 candidate cells, please refer to the description of the measurement results of the reference signals from the M1 candidate cells in S202, and will not be repeated here.

[0263] The following explains the measurement results of the reference signal from the serving cell in the measurement report.

[0264] In some implementations, the measurement report includes measurement results of some or all of the reference signals from the serving cell. For example, the reference signals from the serving cell include reference signals #7 to #9. The measurement report includes measurement results of some or all of the reference signals from reference signals #7 to #9.

[0265] In this way, the second device can acquire the measurement results of the reference signal from the serving cell, thereby enabling more effective mobility management.

[0266] As previously stated, the measurement report includes measurement results of reference signals from 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 can be ordered in various ways, for example, at least one of methods c1 to c3.

[0267] Method c1: The measurement results of the reference signal from the serving cell are placed before the measurement results of the reference signals from the M1 candidate cells.

[0268] For example, in the measurement report, the measurement results of the reference signals from the serving cell include: the measurement results of reference signals #7 to #8; the measurement results of the reference signals from candidate cell #1 out of the M1 candidate cells include: the measurement results of reference signals #2 to #3; and the measurement results of the reference signals from candidate cell #2 out of the M1 candidate cells include: the measurement results of reference signals #4 to #5. The measurement results of reference signals #7 to #8 may precede the measurement results of reference signals #2 to #5.

[0269] By means of c1, the first device can accurately determine the order of the measurement results of the reference signals from M1 candidate cells and the measurement results of the reference signals from the serving cell in the measurement report, based on the source of the reference signals.

[0270] Method c2: The third cell is any one of the M1 candidate cells. The order of the measurement results of the reference signal from the third cell and the reference signal from the serving cell is determined based on the signal quality of the third reference signal from the third cell and the fourth reference signal from the serving cell; correspondingly, the first device can determine the order of the measurement results of the reference signal from the third cell and the reference signal from the serving cell based on the signal quality of the third reference signal and the fourth reference signal.

[0271] The third and fourth reference signals will be explained below.

[0272] In some implementations, the third reference signal is the reference signal with the highest signal quality from the third cell, and the fourth reference signal is the reference signal with the highest signal quality from the serving cell. For details, refer to the explanation in method a1 regarding "the first reference signal can be the reference signal with the highest signal quality from the first cell, and the second reference signal can be the reference signal with the highest signal quality from the second cell," except that the first reference signal is replaced with the third reference signal, the first cell with the third cell, the second reference signal with the fourth reference signal, and the second cell with the serving cell. Further details are omitted here.

[0273] In other implementations, the third reference signal may be a reference signal from the third cell whose signal quality is greater than the third threshold, and the fourth reference signal may be a reference signal from the serving cell whose signal quality is greater than the third threshold. For details, refer to the explanation in method a1 regarding "the first reference signal may be a reference signal from the first cell whose signal quality is greater than the third threshold, and the second reference signal may be a reference signal from the second cell whose signal quality is greater than the third threshold," except that the first reference signal is replaced with the third reference signal, the first cell with the third cell, the second reference signal with the fourth reference signal, and the second cell with the serving cell; further details will not be elaborated here.

[0274] In mode c2, if the signal quality of the third reference signal is greater than that of the fourth reference signal, the measurement result of the reference signal from the third cell precedes the measurement result of the reference signal from the serving cell; and / or, if the signal quality of the third reference signal is less than that of the fourth reference signal, the measurement result of the reference signal from the third cell follows the measurement result of the reference signal from the serving cell. Mode c2 can also be understood as follows: for cells with higher reference signal quality, the measurement result of their corresponding reference signal appears earlier in the measurement report.

[0275] For example, in the measurement report, the measurement results of the reference signal from the serving cell include the measurement results of reference signal #7 to reference signal #8; the measurement results of the reference signal from the third cell include the measurement results of reference signal #2 to reference signal #3. If 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 results of reference signal #2 to reference signal #3 are placed before the measurement results of reference signal #7 to reference signal #8.

[0276] For example, in the measurement report, the measurement results of the reference signal from the serving cell include the measurement results of reference signals #7 to #8; the measurement results of the reference signal from the third cell include the measurement results of reference signals #4 to #5. If the signal quality of the third reference signal from the third cell is lower than the signal quality of the fourth reference signal from the serving cell, the measurement results of reference signals #4 to #5 are placed after the measurement results of reference signals #7 to #8.

[0277] By means of c2, the first device can accurately determine the order of the measurement results of the reference signal from the third cell and the measurement results of the reference signal from the serving cell in the measurement report based on the signal quality of the third reference signal and the fourth reference signal, thereby accurately determining the order of the measurement results of the reference signals from M1 candidate cells and the measurement results of the reference signal from the serving cell in the measurement report.

[0278] Method c3: The third cell is any one of the M1 candidate cells. The order of the measurement results of the reference signal from the third cell and the measurement results of the reference signal from the serving cell is determined based on the third average signal quality and the fourth average signal quality; correspondingly, the first device can determine the order of the measurement results of the reference signal from the third cell and the measurement results of the reference signal from the serving cell based on the third average signal quality and the fourth average signal quality.

[0279] Wherein, 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. For details, please refer to the explanation in method a2 regarding "the first average signal quality is the average signal quality of the reference signal from the first cell, and the second average signal quality is the average signal quality of the reference signal from the second cell," except that the first average signal quality is replaced with the third average signal quality, the first cell with the third cell, the second average signal quality with the fourth average signal quality, and the second cell with the serving cell; further elaboration is omitted here.

[0280] In mode c3, when the third average signal quality is greater than the fourth average signal quality, the measurement result of the reference signal from the third cell precedes the measurement result of the reference signal from the serving cell; and / or, when the third average signal quality is less than the fourth average signal quality, the measurement result of the reference signal from the third cell follows the measurement result of the reference signal from the serving cell. Mode c3 can also be understood as: for cells with higher average reference signal quality, the measurement result of their corresponding reference signal appears earlier in the measurement report.

[0281] For example, in the measurement report, the measurement results of the reference signal from the serving cell include the measurement results of reference signal #7 to reference signal #8; the measurement results of the reference signal from the third cell include the measurement results of reference signal #2 to reference signal #3. If 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 reference signal #2 to reference signal #3 are placed before the measurement results of reference signal #7 to reference signal #8.

[0282] For example, in the measurement report, the measurement results for reference signals from the serving cell include the measurement results for reference signals #7 to #8; the measurement results for reference signals from the third cell include the measurement results for reference signals #4 to #5. If the average signal quality of the reference signals from the third cell is less than the average signal quality of the reference signals from the serving cell, the measurement results for reference signals #4 to #5 are placed after the measurement results for reference signals #7 to #8.

[0283] By means of c3, the first device can accurately determine the order of the measurement results of the reference signal from the third cell and the measurement results of the reference signal from the serving cell in the measurement report based on the third average signal quality and the fourth average signal quality, thereby accurately determining the order of the measurement results of the reference signal from M1 candidate cells and the measurement results of the reference signal from the serving cell in the measurement report.

[0284] In some possible ways, the sorting method used to sort the measurement results of reference signals from M1 candidate cells and the measurement results of reference signals from the serving cell can be pre-set, such as as specified in the protocol; or it can be determined by the first device; or it can be notified to the first device by other devices (e.g., the second device and the core network equipment).

[0285] Optionally, the measurement results of the reference signal from the serving cell may also include: the identifier of the serving cell. For example, as shown in Table 4A, the measurement report may include the measurement results of the reference signal from the serving cell, including: the identifier of the serving cell, and the measurement results of reference signal #7 to reference signal #8.

[0286] Table 4A

[0287]

[0288] Optionally, the measurement report may include the reference signal's identifier and its corresponding measurement result (e.g., signal quality). For example, Table 4A can be replaced by Table 4B. The representation of signal quality can be found in the explanation of signal quality in the terminology section above, and will not be repeated here.

[0289] Table 4B

[0290]

[0291] It should be understood that Tables 4A and 4B are merely examples. In practical applications, measurement results with more or fewer reference signals may be included.

[0292] In this method, the measurement results of the reference signals from the serving cell also include the identifier of the serving cell. Thus, the second device can accurately determine which reference signal measurement results originate from the serving cell based on the identifier of the serving cell.

[0293] Among some possible ways, Figure 2 The method shown also includes S205:

[0294] S205: The second device sends the third information; correspondingly, the first device receives the third information.

[0295] The third information is used to instruct the first device whether to report the measurement results of the reference signal from the serving cell. Optionally, if the third information instructs the first device to report the measurement results of the reference signal from the serving cell, the measurement report in S202 may include the measurement results of the reference signal from the serving cell.

[0296] In some implementations, the third information can be used to indicate that, in cases where the serving cell is related to the first event, the first device reports the measurement results of the reference signal from the serving cell. Accordingly, in cases where the serving cell is related to the first event, the measurement report in S202 also includes the measurement results of the reference signal from the serving cell.

[0297] The serving cell is related to the first event and may include: the reference signal that triggers the first event includes a reference signal from the serving cell or the group to which the serving cell belongs.

[0298] For example, if the first event is that the signal quality of the reference signal from the serving cell is less than the signal quality of the reference signal from the candidate cell, then the reference signal that triggers the first event includes the reference signal from the serving cell, and the serving cell is related to the first event.

[0299] For example, if the first event is that the signal quality of a reference signal from the serving cell or the group to which the serving cell belongs is less than a first threshold, then the reference signal that triggers the first event includes: a 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.

[0300] For example, if 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 the first offset, then the reference signal that triggers the first event includes 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.

[0301] For example, if the first event is that the sum of the signal quality and the second offset of the reference signal from the candidate cell or the group to which the candidate cell belongs is greater than the signal quality of the reference signal from the serving cell or the group to which the serving cell belongs, then the reference signal that triggers the first event includes 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.

[0302] For example, if the first event is: the signal quality of the reference signal from the serving cell or the group to which the serving cell belongs is less than a first threshold, and 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, then the reference signals that trigger the first event include: 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.

[0303] This implementation ensures that the first device only reports the measurement results of the reference signal from the serving cell when the serving cell is relevant to the first event. When the serving cell is irrelevant to the first event, the first device may not report the measurement results of the reference signal from the serving cell, thereby reducing reporting overhead and avoiding or minimizing the waste of reporting resources.

[0304] In other implementations, the third information can be used to indicate that the first device reports the measurement results of the reference signal from the serving cell; or, the third information can be used to indicate that the first device reports the measurement results of the reference signal from the serving cell regardless of whether the serving cell is related to the first event. Accordingly, the measurement report in S202 also includes the measurement results of the reference signal from the serving cell.

[0305] Optionally, the third information can be carried in the reported configuration information, such as the event-triggered reported configuration information.

[0306] Through this implementation, the second device can flexibly configure the measurement results of the reference signal reported by the first device from the serving cell using third information.

[0307] Optionally, when the third information instructs the first device to report the measurement results of the reference signals from the serving cell, the third information may also be used to instruct the first device to report the measurement results of N reference signals from the serving cell, where N is a positive integer; or, the third information may indicate N, where N is the number of reference signals corresponding to the measurement results of the reference signals from the serving cell reported by the first device; or, the third information may indicate the number of reference signals corresponding to the measurement results of the reference signals from the serving cell in the measurement report; or, the third information may be used to indicate a third quantity, which is equal to the number of reference signals corresponding to the measurement results of the reference signals from the serving cell in the measurement report. For details, please refer to the explanation of "the first information is used to indicate the first quantity" in S203, only replacing the first information with the third information, the first quantity with the third quantity, and the first cell with the serving cell, which will not be repeated here.

[0308] Optionally, the N reference signals from the serving cell can be some or all of the reference signals from the serving cell. For example, the N reference signals can be the N reference signals with the highest signal quality from the serving cell. Alternatively, the N reference signals can be the N reference signals with signal quality greater than a set threshold from the serving cell. Yet another example is that the N reference signals can be the N reference signals indicated by the second device.

[0309] In 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. This allows the second device to flexibly manage the measurement reports submitted by the first device. For example, for a serving cell related to the first event, the second device can be configured to submit measurement results of more reference signals to the first device; for a serving cell unrelated to the first event, the second device can be configured to submit measurement results of fewer reference signals to the first device, thereby improving the efficiency and accuracy of mobility management based on the measurement results.

[0310] Third-party information can be carried within traditional messages or within new messages. For example, third-party information can be carried within RRC messages, MAC CE, or DCI messages.

[0311] Optionally, S205 can precede S202; the order of S205 and S201 is not limited in this application; the order of any step in S203 and S204 and S205 is not limited in this application. Any two of the first, second, and third information can be carried in the same message or in different messages, without restriction.

[0312] In other possible ways, the measurement report in S202 may be pre-defined (e.g., as specified in the protocol) as including: measurement results of reference signals from the serving cell.

[0313] In some implementations, it can be pre-defined (e.g., stipulated in the protocol) that, if the first event is related to the serving cell, the measurement report in S202 also includes: the measurement results of the reference signal from the serving cell. The specific details regarding the first event being related to the serving cell can be found in the explanation of "the first event is related to the serving cell" in S205, and will not be repeated here.

[0314] This implementation ensures that the first device only reports the measurement results of the reference signal from the serving cell when the serving cell is relevant to the first event. When the serving cell is irrelevant to the first event, the first device may not report the measurement results of the reference signal from the serving cell, thereby reducing reporting overhead and avoiding or minimizing the waste of reporting resources.

[0315] In other implementations, it can be pre-defined (e.g., according to the protocol) that the first device will report the measurement results of the reference signal from the serving cell, regardless of whether the serving cell is related to the first event.

[0316] In this approach, the measurement report in S202 can be pre-configured (e.g., as specified in the protocol) to include the measurement results of the reference signal from the serving cell. This eliminates the need for the second device to instruct the first device to report the measurement results of the reference signal from the serving cell, thereby saving signaling overhead.

[0317] In some possible configurations, 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 some or all of the M cells. The M2 cells can be M1 candidate cells, or the M2 cells can include the M1 candidate cells and the serving cell.

[0318] The fourth cell is any one of the M2 cells. The measurement report in S202 may include the measurement results of N1 reference signals from the fourth cell, where N1 is a positive integer. The measurement results of these N1 reference signals can be ordered in various ways, such as at least one of modes d1 to d4.

[0319] Method d1: The measurement results of the N1 reference signals are arranged consecutively and sorted in descending order of signal quality.

[0320] For example, if the N1 reference signals include reference signal #2 to reference signal #3, and the signal quality of reference signal #3 is greater than that of reference signal #2, then the measurement results of the N1 reference signals in the measurement report can be shown in Table 5A.

[0321] Table 5A

[0322] Measurement results Measurement results of reference signal #3 Measurement results of reference signal #2

[0323] Optionally, the measurement report may include the reference signal's identifier and its corresponding measurement result (e.g., signal quality). For example, Table 5A can be replaced by Table 5B. The representation of signal quality can be found in the explanation of signal quality in the terminology section above, and will not be repeated here.

[0324] Table 5B

[0325] Reference signal identification Signal quality Reference signal #3 identifier Signal quality of reference signal #3 Identification of reference signal #2 Signal quality of reference signal #2

[0326] It should be understood that Tables 5A and 5B are merely examples. In practical applications, measurement results with more or fewer reference signals may be included.

[0327] According to method 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 based on the signal quality of the N1 reference signals.

[0328] Method d2: The measurement results of the N1 reference signals are arranged continuously and sorted in ascending order of signal quality.

[0329] For example, if the N1 reference signals include reference signal #2 to reference signal #3, and the signal quality of reference signal #3 is greater than that of reference signal #2, then the measurement results of the N1 reference signals in the measurement report can be shown in Table 6A.

[0330] Table 6A

[0331] Measurement results Measurement results of reference signal #2 Measurement results of reference signal #3

[0332] Optionally, the measurement report may include the reference signal's identifier and its corresponding measurement result (e.g., signal quality). For example, Table 6A can be replaced by Table 6B. The representation of signal quality can be found in the explanation of signal quality in the terminology section above, and will not be repeated here.

[0333] Table 6B

[0334] Reference signal identification Signal quality Identification of reference signal #2 Signal quality of reference signal #2 Reference signal #3 identifier Signal quality of reference signal #3

[0335] It should be understood that Tables 6A and 6B are merely examples. In practical applications, measurement results with more or fewer reference signals may be included.

[0336] According to method 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 based on the signal quality of the N1 reference signals.

[0337] Method d3: The measurement results of the N1 reference signals are arranged continuously and sorted in descending order of the reference signal identifiers.

[0338] For example, if the N1 reference signals include reference signal #2 to reference signal #3, and the identifier of reference signal #3 is greater than the identifier of reference signal #2, then the measurement results of the N1 reference signals in the measurement report can be shown in Table 5A or Table 5B above.

[0339] According to method 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 based on the identifiers of the N1 reference signals.

[0340] Method d4: The measurement results of the N1 reference signals are arranged continuously and sorted in ascending order of the reference signal identifiers.

[0341] For example, if the N1 reference signals include reference signal #2 to reference signal #3, and the identifier of reference signal #3 is greater than the identifier of reference signal #2, then the measurement results of the N1 reference signals in the measurement report can be shown in Table 6A or Table 6B above.

[0342] According to method 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 based on the identifiers of the N1 reference signals.

[0343] In some possible ways, the sorting method used to sort the measurement results of the N1 reference signals can be pre-set, such as as specified in the protocol; or it can be determined by the first device; or it can be notified to the first device by other devices (e.g., the second device and the core network equipment). Optionally, the sorting method of the measurement results of the N1 reference signals can be the same or different for different cells in the M2 cells.

[0344] Using the above method, the first device can determine the order of the measurement results of the reference signals from M2 cells in the measurement report, as illustrated below.

[0345] In the first example, M2 cells are M1 candidate cells. The first device can determine the order of measurement results of reference signals from the M2 cells in the measurement report according to mode a1 and mode 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 candidate cell #1 include: the identifier of candidate cell #1, and the measurement results of reference signals #2 to #3; the measurement results of the reference signals from candidate cell #2 include: the identifier of candidate cell #2, and the measurement results of reference signals #4 to #5. If the order of signal quality from highest to lowest is: reference signal #3, reference signal #4, reference signal #2, and reference signal #5, then the measurement report can be as shown in Table 7A.

[0346] Table 7A

[0347]

[0348] In the second example, M2 cells are M1 candidate cells. 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 mode a2 and mode 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 candidate cell #1 include: the identifier of candidate cell #1, and the measurement results of reference signals #2 to #3; the measurement results of the reference signals from candidate cell #2 include: the identifier of candidate cell #2, and the measurement results of reference signals #4 to #5. If the order of signal quality from highest to lowest is: reference signal #3, reference signal #4, reference signal #5, and reference signal #2, and the average signal quality of the reference signals from candidate cell #1 is less than the average signal quality of the reference signals from candidate cell #2, then the measurement report can be as shown in Table 7B.

[0349] Table 7B

[0350]

[0351] In the third example, M2 cells are M1 candidate cells. 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 mode a3 and mode 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 candidate cell #1 include: the identifier of candidate cell #1, and the measurement results of reference signals #2 to #3; the measurement results of the reference signals from candidate cell #2 include: the identifier of candidate cell #2, and the measurement results of reference signals #4 to #5. If the order of signal quality from highest to lowest is: reference signal #3, reference signal #4, reference signal #5, and reference signal #2, and candidate cell #2 belongs to the first group of candidate cells, and candidate cell #1 belongs to the second group of candidate cells, then the measurement report can be as shown in Table 7B.

[0352] In the fourth example, the M2 cells include M1 candidate cells and the 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 mode a1, mode c1, and mode 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 candidate cell #1 include: the identifier of candidate cell #1, and the measurement results of reference signals #2 to #3; the measurement results of the reference signals from candidate cell #2 include: the identifier of candidate cell #2, and the measurement results of reference signals #4 to #5; the measurement results of the reference signals from the serving cell include: the identifier of the serving cell, and the measurement results of reference signals #7 to #8. If the order of signal quality from highest to lowest is: reference signal #3, reference signal #8, reference signal #4, reference signal #7, reference signal #2, and reference signal #5, then the measurement report can be as shown in Table 7C.

[0353] Table 7C

[0354]

[0355] In the fifth example, the M2 cells include M1 candidate cells and the 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 mode a1, mode c2, and mode 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 candidate cell #1 include: the identifier of candidate cell #1, and the measurement results of reference signals #2 to #3; the measurement results of the reference signals from candidate cell #2 include: the identifier of candidate cell #2, and the measurement results of reference signals #4 to #5; the measurement results of the reference signals from the serving cell include: the identifier of the serving cell, and the measurement results of reference signals #7 to #8. If the order of signal quality from highest to lowest is: reference signal #3, reference signal #8, reference signal #4, reference signal #7, reference signal #2, and reference signal #5, then the measurement report can be as shown in Table 7D.

[0356] Table 7D

[0357]

[0358] It should be understood that at least one of the methods a1 to a5 can be combined with at least one of the following: at least one of the methods c1 to c3, and at least one of the methods d1 to d4. These will not be listed individually here.

[0359] In some possible configurations, as previously mentioned, the fourth cell can be any one of the M2 cells. In the measurement report, the measurement results of the N1 reference signals from the fourth cell may include: the signal quality of the fifth reference signal among the N1 reference signals, and the differential quality of each of the N1 reference signals excluding the fifth reference signal. The differential quality of each reference signal is the difference between the signal quality of that reference signal and the signal quality of the fifth reference signal.

[0360] Optionally, the fifth reference signal may be the reference signal with the highest signal quality among the N1 reference signals; or, it may be the reference signal with the lowest signal quality among the N1 reference signals; or, it may be the reference signal with intermediate signal quality among the N reference signals; or, it may be a reference signal indicated by other devices (e.g., a second device or access network equipment) among the N1 reference signals. The fifth reference signal may also have other forms of representation, without limitation.

[0361] The signal quality of the fifth reference signal can be quantized using X1 bits, and the differential quality of each of the N1 reference signals (excluding the fifth reference signal) can be quantized using X2 bits. X1 and X2 are positive integers, and X1 is greater than X2. For example, X1 can be 7 and X2 can be 4. For instance, the signal quality of the fifth reference signal is -102, which can be quantized using 7 bits; reference signal #a is another reference signal among the N1 reference signals excluding the fifth reference signal, and the signal quality of reference signal #a is 13 less than -102, which can be quantized using 4 bits to represent -13. The unit of signal quality can be decibel-milliwatt (dBm) or decibel (dB).

[0362] The following example uses the fifth reference signal as the reference signal with the highest signal quality among the N1 reference signals, with X1 being 7 and X2 being 4, to illustrate the point.

[0363] For example, in the first example above, the measurement report could be as shown in Table 8A. The signal quality of reference signal #3 can be quantized using 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 quantized using 4 bits. The signal quality of reference signal #4 can be quantized using 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 quantized using 4 bits.

[0364] Table 8A

[0365]

[0366] For example, in the second and third examples above, the measurement report can be as shown in Table 8B. The specific meaning of each piece of information in Table 8B can be found in the explanation of the meaning of each piece of information in Table 8A, and will not be repeated here.

[0367] Table 8B

[0368]

[0369] 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 quantized using 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, which can be quantized using 4 bits. The signal quality of reference signal #3 can be quantized using 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 quantized using 4 bits. The signal quality of reference signal #4 can be quantized using 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 quantized using 4 bits.

[0370] Table 8C

[0371]

[0372]

[0373] For example, in the fifth example above, the measurement report could be as shown in Table 8D. The specific meaning of each piece of information in Table 8D can be found in the explanation of the meaning of each piece of information in Table 8C, and will not be repeated here.

[0374] Table 8D

[0375]

[0376] In this way, the measurement results of reference signals from different cells can be quantified and characterized separately. Thus, when there are significant differences in the signal quality between reference signals from different cells, the first device can accurately report the signal quality of reference signals from different cells with minimal overhead, thereby improving the accuracy of the reported signal quality of reference signals from different cells.

[0377] In other possible approaches, as mentioned earlier, the measurement report may include measurement results of reference signals from M2 cells. The specific details of these M2 cells are described 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 M2 cells other than the sixth reference signal. The sixth reference signal belongs to the reference signals from the M2 cells; the differential quality of each reference signal is the difference between the signal quality of that reference signal and the signal quality of the sixth reference signal.

[0378] Optionally, the sixth reference signal may be the reference signal with the highest signal quality from the first cell among the M2 cells; or, it may be the reference signal with the lowest signal quality from the first cell among the M2 cells; or, it may be a reference signal with intermediate signal quality from the first cell among the M2 cells; or, it may be the reference signal with the highest signal quality from the M2 cells; or, it may be the reference signal with the lowest signal quality from the M2 cells; or, it may be a reference signal indicated by other devices (e.g., a second device or access network equipment). The sixth reference signal may also have other forms of representation, without limitation.

[0379] The signal quality of the sixth reference signal can be quantized using X1 bits, and the differential quality of each reference signal from the M2 cells other than the sixth reference signal can be quantized using X2 bits. X1 and X2 are positive integers, and X1 is greater than X2. For example, X1 can be 7 and X2 can be 4. For instance, the signal quality of the sixth reference signal is -102, which can be quantized using 7 bits; reference signal #b is a reference signal from the M2 cells other than the sixth reference signal, and the signal quality of reference signal #b is 13 less than -102, which can be quantized using 4 bits to represent -13. The unit of signal quality can be decibel-milliwatt (dBm) or decibel (dB).

[0380] The following example uses the sixth reference signal as the reference signal with the highest signal quality from the first cell among the M2 cells, with X1 being 7 and X2 being 4, to illustrate the point.

[0381] For example, in the first example above, the measurement report could be as shown in Table 9A. The signal quality of reference signal #3 can be quantized using 7 bits; the differential quality of each reference signal in Table 9A can be the difference between the signal quality of that reference signal and the signal quality of reference signal #3, which can be quantized using 4 bits.

[0382] Table 9A

[0383]

[0384] For example, in the second and third examples above, the measurement report can be as shown in Table 9B. The signal quality of reference signal #4 can be quantized using 7 bits; the differential quality of each reference signal in Table 9B can be the difference between the signal quality of that reference signal and the signal quality of reference signal #4, which can be quantized using 4 bits.

[0385] Table 9B

[0386]

[0387] 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 quantized using 7 bits; the differential quality of each reference signal in Table 9C can be the difference between the signal quality of that reference signal and the signal quality of reference signal #8, which can be quantized using 4 bits.

[0388] Table 9C

[0389]

[0390] For example, in the fifth example above, the measurement report can be as shown in Table 9D. The signal quality of reference signal #3 can be quantized using 7 bits; the differential quality of each reference signal in Table 9D can be the difference between the signal quality of that reference signal and the signal quality of reference signal #3, which can be quantized using 4 bits.

[0391] Table 9D

[0392]

[0393] In this way, the measurement results of reference signals from different cells can be uniformly quantified and characterized, thereby reducing reporting overhead.

[0394] Among some possible ways, Figure 2 The method shown may also include S206:

[0395] S206: The second device performs mobility management on the first device based on the measurement report.

[0396] This application does not limit the specific process by which the second device performs 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, and the signal quality of the reference signal from candidate cell #1 is greater than a sixth threshold, then the first device may instruct itself to switch from the serving cell to candidate cell #1. The fifth and sixth thresholds may be pre-set, such as those specified in a protocol; or they may be determined by the second device; or they may be notified to the second device by other devices (e.g., core network equipment or the first device).

[0397] Optionally, S206 can be performed after S202.

[0398] pass Figure 2The method shown involves ranking the measurement results of reference signals from M1 candidate cells in the measurement report based on at least one of the following: the signal quality of the reference signals from the M1 candidate cells, or the relationship between the M1 candidate cells and the first event. This allows the first device to accurately rank the measurement results of the reference signals from the M1 candidate cells.

[0399] Furthermore, a measurement report (e.g., a measurement report including L1 measurement results) may correspond to multiple measurement resource sets, and resource identifiers may be duplicated in different measurement resource sets. For example, the resource identifiers in each measurement resource set may be 0 to 15. Therefore, multiple measurement results in a measurement report may correspond to the same resource identifier in different measurement resource sets. Thus, it is impossible to determine which measurement resource set the measurement results of the reference signal in the measurement report refer to based solely on the resource identifier. By sorting the measurement results of the reference signals from M1 candidate cells, the second device can accurately determine which measurement resource set the measurement results in the measurement report refer to.

[0400] Based on the same technical concept as the above-described method embodiments, this application provides a corresponding communication device that can be used to perform the functions of the relevant steps in the above-described method embodiments. This function can be implemented in hardware, 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 access network device, or a device within the terminal or access network device (e.g., a module, communication module, circuit or chip responsible for communication functions (such as a modem chip, or a SoC chip or SIP chip containing a modem core), chip system, or processor), or a logical node, logical module, or software capable of implementing all or part of the terminal or functions.

[0401] In one possible implementation, the communication device provided in this application embodiment has the following structure: Figure 3 As shown, the communication device includes a processing unit 302. Optionally, the communication device may also include an interface unit 301. The functions of each unit in the communication device 300 are described below.

[0402] Interface unit 301 is used for inputting and / or outputting information. Input information can be replaced by received information, and output information can be replaced by transmitted information. When outputting information, interface unit 301 can output information to other devices outside of communication device 300, or to other units within communication device 300. In some embodiments, interface unit 301 can be implemented through at least one of a physical interface, a communication module, a communication interface, and an input / output interface. In other embodiments, interface unit 301 can be implemented through an interface circuit, such as a mobile communication module. The mobile communication module may include one or more of at least one antenna, at least one filter, a switch, a power amplifier, a low-noise amplifier (LNA), etc. Interface unit 301 is used to perform the receiving and transmitting operations in the above method embodiments.

[0403] In this application, the interface unit 301 may also have other names, such as a transceiver unit or a communication unit. Optionally, the interface unit 301 may include a receiving unit and a sending unit, used for inputting information and outputting information, respectively. 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.

[0404] The processing unit 302 can be used to support the communication device 300 in performing 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), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), microprocessors (MCUs), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. A general-purpose processor can be a microprocessor or any conventional processor. The processing unit 302 is used to perform processing-related operations in the above method embodiments, for example, to instruct operations other than receiving and sending operations in the above method embodiments.

[0405] In one embodiment, the communication device 300 is applied to Figure 2 The first device in this embodiment of the application is shown. The specific functions of the processing unit 302 in this embodiment are described below.

[0406] Processing unit 302 is configured to: receive reference signals from M cells via interface unit 301, where M is an integer greater than 1; and send a measurement report via interface unit 301, 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 M cells, the M1 candidate cells are related to a first event that triggers the transmission of the measurement report, and in the measurement report, the measurement results of reference signals from the M1 candidate cells are sorted according to at least one of the following: the signal quality of the reference signals from the M1 candidate cells, or the relationship between the M1 candidate cells and the first event.

[0407] In some possible configurations, the first cell and the second cell are any two cells from M1 candidate cells. The processing unit 302 is further configured to: receive first information through the interface unit 301, the first information indicating a first quantity, the first quantity being equal to the number of reference signals corresponding to the measurement results of the reference signals from the first cell in the measurement report; and receive second information through the interface unit 301, the second information indicating a second quantity, the second quantity being equal to the number of reference signals corresponding to the measurement results of the reference signals from the second cell in the measurement report, wherein the first quantity and the second quantity are the same or different.

[0408] Optionally, the processing unit 302 is further configured to: receive third information through the interface unit 301, the third information being used to indicate whether the first device should report the measurement results of the reference signal from the serving cell.

[0409] In another embodiment, the communication device 300 is applied to Figure 3 The second device in this embodiment of the application is shown. The specific functions of the processing unit 302 in this embodiment will be described below.

[0410] Processing unit 302 is configured to: receive a measurement report via interface unit 301, the measurement report including measurement results of reference signals from M1 candidate cells, where M1 is a positive integer, the M1 candidate cells including M1 candidate cells related to a first event used to trigger the transmission of the measurement report, and in the measurement report, the measurement results of reference signals from the M1 candidate cells are sorted according to at least one of the following: the signal quality of the reference signals from the M1 candidate cells, or the relationship between the M1 candidate cells and the first event.

[0411] In some possible configurations, the first cell and the second cell are any two cells from M1 candidate cells. The processing unit 302 is further configured to: send first information through the interface unit 301, the first information indicating a first quantity, the first quantity being equal to the number of reference signals corresponding to the measurement results of the reference signals from the first cell in the measurement report; and send second information through the interface unit 301, the second information indicating a second quantity, the second quantity being equal to the number of reference signals corresponding to the measurement results of the reference signals from the second cell in the measurement report, wherein the first quantity and the second quantity are the same or different.

[0412] Optionally, the processing unit 302 is further configured to: send third information through the interface unit 301, the third information being used to indicate whether the first device reports the measurement results of the reference signal from the serving cell.

[0413] In one possible design, when the communication device 300 is a communication equipment or a communication module within a communication equipment, the functionality of the processing unit 302 can be implemented by one or more processors. For example, the processor may include a modem chip, or a system-on-a-chip (SoC) or SIP chip containing a modem core. The functionality of the interface unit 301 can be implemented by transceiver circuitry.

[0414] In one possible design, when the communication device 300 is a circuit or chip responsible for communication functions in a communication device, such as a modem chip or a system-on-a-chip (SoC) or SIP chip containing a modem core, the function of the processing unit 302 can be implemented by a circuit system in the aforementioned chip that includes one or more processors or processor cores. The function of the interface unit 301 can be implemented by the interface circuit or data transceiver circuit on the aforementioned chip.

[0415] The communication device can be a terminal or an access network device.

[0416] For a more detailed description of the processing unit 302 and the interface unit 301 mentioned above, please refer to [link / reference]. Figure 2 The relevant descriptions in the method embodiments shown are directly obtained and will not be repeated here.

[0417] It should be noted that the module division in the above embodiments of this application is illustrative and only represents a logical functional division. In actual implementation, there may be other division methods. Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, exist as separate physical units, or have two or more units integrated into one unit. The integrated units can be implemented in hardware, as software functional units, or in a combination of hardware and software. Whether a function is executed in hardware or software depends on the specific application and design constraints of the technical solution. Those 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 this application.

[0418] For example, the functional unit in any of the above devices may 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.

[0419] If the integrated units described above are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) or processor to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0420] In one possible implementation, the communication device provided in the embodiments of this application is described below. Figure 4 As shown, the communication device 400 includes a processor 402. Optionally, the communication device 400 further includes an interface circuit 401 and a memory 403. The interface circuit 401, the processor 402, and the memory 403 are coupled to each other.

[0421] Optionally, the interface circuit 401, processor 402, and memory 403 are coupled to each other via bus 404. 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 address bus, data bus, control bus, etc. For ease of representation, Figure 4 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0422] Interface circuit 401 is used for inputting and / or outputting information. Input information can be replaced by received information, and output information can be replaced by transmitted information. When outputting information, interface circuit 401 can output information to other devices outside of communication device 400, or to other units within communication device 400. For example, interface circuit 401 can be implemented through 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 may include one or more of at least one antenna, at least one filter, a switch, a power amplifier, an LNA, etc. Interface circuit 401 is used to perform the receiving and transmitting operations in the above method embodiments.

[0423] Interface circuit 401 may be one of the following: a transceiver, a transceiver circuit, a communication circuit, an interface, a communication interface, or an input / output interface (e.g., a chip's input / output interface). Interface circuit 401 may include an input interface circuit and an output interface circuit, used for inputting information and outputting information, respectively. The input interface circuit is used to perform the receiving operation in the above method embodiments. The output interface circuit is used to perform the transmitting operation in the above method embodiments.

[0424] The transceiver can be used for communication with other communication devices. For example, if communication device 400 is a terminal, the transceiver can be used to communicate with access network equipment or with another terminal. As another example, if communication device 400 is an access network device, the transceiver can be used to communicate with a terminal or with another access network device.

[0425] Optionally, the transceiver may include a receiver and a transmitter. The receiver is used to perform the receiving operation in the above method embodiments. The transmitter is used to perform the sending operation in the above method embodiments.

[0426] Optionally, the transceiver can be integrated with the processor 402 or exist independently and be coupled to the processor 402 through the interface circuit of the communication device 400. This application embodiment does not specifically limit this.

[0427] Processor 402 can be used to support communication device 400 in performing the processing actions in the above method embodiments. When communication device 400 is used to implement the above method embodiments, processor 402 can also be used to implement the functions of processing unit 302. Processor 402 can be a CPU, or other general-purpose processors, DSPs, ASICs, FPGAs, or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. General-purpose processors can be microprocessors or any conventional processor. Processor 402 is used to perform processing-related operations in the above method embodiments, for example, to instruct operations other than receiving and sending operations in the above method embodiments.

[0428] In one embodiment, the communication device 400 is applied to Figure 2 The first device in this embodiment of the application is shown. The specific functions of the processor 402 in this embodiment are described below.

[0429] Processor 402 is configured to: receive reference signals from M cells via interface circuit 401, where M is an integer greater than 1; and send a measurement report via interface circuit 401, 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 M cells, the M1 candidate cells are related to a first event that triggers the transmission of the measurement report, and in the measurement report, the measurement results of reference signals from the M1 candidate cells are sorted according to at least one of the following: the signal quality of the reference signals from the M1 candidate cells, or the relationship between the M1 candidate cells and the first event.

[0430] In another embodiment, the communication device 400 is applied to Figure 2 The second device in this embodiment of the application is shown below. The specific functions of the processor 402 in this embodiment are described below.

[0431] Processor 402 is configured to: receive a measurement report via interface circuit 401, the measurement report including measurement results of reference signals from M1 candidate cells, where M1 is a positive integer, the M1 candidate cells including M1 candidate cells related to a first event for triggering the transmission of the measurement report, and in the measurement report, the measurement results of reference signals from the M1 candidate cells are ordered according to at least one of the following: the signal quality of the reference signals from the M1 candidate cells, or the relationship between the M1 candidate cells and the first event.

[0432] The specific functions of processor 402 can be found in the descriptions of the communication methods provided in the embodiments and examples of this application above. Figure 3 The specific functional description of the communication device 300 shown in the embodiments of this application will not be repeated here.

[0433] Memory 403 is used to store program instructions and / or data. Specifically, program instructions may include program code, which includes computer operation instructions. Memory 403 may include RAM and may also include non-volatile memory, such as at least one disk storage device. Processor 402 executes the program instructions stored in memory 403 and uses the data stored in memory 403 to implement the above-mentioned functions, thereby realizing the communication method provided in the embodiments of this application. Memory 403 may be integrated with processor 402 or may be a memory outside the communication device.

[0434] It is understood that this application Figure 4 The memory 403 can be volatile memory or non-volatile memory, or may include both. The non-volatile memory can be ROM, programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be RAM, which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous linked dynamic random access memory (SLDRAM), and direct rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0435] This application also provides a communication device 500, which can be a terminal, a processor in the terminal, or a chip. The communication device 500 can be used to perform the operations performed by the first device in the above method embodiments.

[0436] When the communication device 500 is a terminal Figure 5 A schematic diagram of a terminal structure is shown. For example... Figure 5As shown, the terminal includes a processor, a memory, and a transceiver. The memory can store computer program code, and the transceiver includes a transmitter 531, a receiver 532, radio frequency circuitry (not shown), an antenna 533, and input / output devices (not shown).

[0437] The processor is mainly used to process communication protocols and communication data; control terminals; execute software programs; and process data from software programs.

[0438] Memory is mainly used to store software programs and data.

[0439] Radio frequency (RF) circuits are mainly used for the conversion between baseband signals and RF signals, as well as for the processing of RF signals.

[0440] Antennas are primarily used for transmitting and receiving radio frequency signals in the form of electromagnetic waves.

[0441] Input / output devices can include touchscreens, displays, or keyboards. They are primarily used to receive user input and output data to the user. It should be noted that some types of terminals may not have input / output devices.

[0442] When data needs to be transmitted, the processor performs baseband processing on the data to be transmitted and outputs a baseband signal to the radio frequency (RF) circuit. The RF circuit then processes the baseband signal and transmits it outwards as electromagnetic waves via an antenna. When data is sent to the terminal, the RF circuit receives the RF signal through the antenna. The RF circuit converts the RF signal back into a baseband signal and outputs it to the processor. The processor converts the baseband signal back into data and processes that data.

[0443] For ease of explanation, Figure 5 Only one memory, processor, and transceiver are shown in the illustration. In actual terminal products, there may be one or more processors and one or more memories. Memory may also be referred to as storage medium or storage device, etc. Memory may be set up independently of the processor or integrated with the processor; this application does not impose any limitations on this.

[0444] In the embodiments of this application, the antenna and radio frequency circuit with transceiver 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.

[0445] like Figure 5As shown, the terminal includes a processor 510, a memory 520, and a transceiver 530. The processor 510 may also be referred to as a processing board, processing module, or processing device, etc. The transceiver 530 may also be referred to as an interface circuit, transceiver, or transceiver device, etc. The processor 510 is used to execute the processing operations on the first device side in the above method embodiments. The transceiver 530 is used to execute the transmit and receive operations on the first device side in the above method embodiments.

[0446] Optionally, the device in transceiver 530 used for receiving functions can be considered a receiver, and the device in transceiver 530 used for transmitting functions can be considered a transmitter; that is, transceiver 530 includes a receiver 532 and a transmitter 531. A receiver may also be called a receiver module or receiving circuit, etc. A transmitter may also be called a transmitter, transmitting module, or transmitting circuit, etc. The receiver is used to perform the receiving operation on the first device side in the above method embodiments. The transmitter is used to perform the transmitting operation on the first device side in the above method embodiments.

[0447] It should be understood that Figure 5 This is for illustrative purposes only and not a limitation; the terminal may not depend on it. Figure 5 The structure shown.

[0448] When the communication device 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 a processing module integrated on the chip, a microprocessor, or an integrated circuit. In the above method embodiments, the transmitting operation of the first device can be understood as the chip's output, and the receiving operation of the first device in the above method embodiments can be understood as the chip's input.

[0449] This application also provides a communication device 600, which can be an access network device or a chip. The communication device 600 can be used to perform the operations performed by the second device in the above method embodiments.

[0450] When the communication device 600 is an access network device, such as a base station. Figure 6 A schematic diagram of an access network device is shown. The access network device includes parts 610, 620, and 630.

[0451] The 610 section is mainly used for baseband processing and controlling access network equipment; the 610 section is usually the control center of the base station, which can be called a processor, and is used to control the access network equipment to perform the processing operations on the second device side in the above method embodiment.

[0452] Section 620 is primarily used to store computer program code and data.

[0453] Section 630 is primarily used for transmitting and receiving radio frequency (RF) signals, as well as converting RF signals to baseband signals. Section 630 is commonly referred to as a transceiver module, transceiver, transceiver circuit, interface circuit, or transceiver unit. Section 630 may include antenna 633 and RF circuitry (not shown in the figure), where the RF circuitry is mainly used for RF processing. Section 630 can be used to perform the transmit and receive operations on the second device side in the above method embodiments.

[0454] Optionally, the device used to implement the receiving function in part 630 can be regarded as a receiver, and the device used to implement the transmitting function can be regarded as a transmitter; that is, part 630 includes receiver 632 and transmitter 631. The receiver can also be called a receiving module, receiver circuit, etc., and the transmitter can be called a transmitting module, transmitter, or transmitting circuit, etc. The receiver is used to perform the receiving operation on the second device side in the above method embodiments. The transmitter is used to perform the transmitting operation on the second device side in the above method embodiments.

[0455] Sections 610 and 620 may include one or more single boards, each single board may include one or more processors and one or more memories. The processor is used to read and execute programs in the memory to implement baseband processing functions and control access network devices. If multiple single boards exist, they can be interconnected to enhance processing capabilities. As an optional implementation, multiple single boards may share one or more processors, multiple single boards may share one or more memories, or multiple single boards may simultaneously share one or more processors.

[0456] It should be understood that Figure 6 This is for illustrative purposes only and not as a limitation; access network devices may not rely on this. Figure 6 The structure shown.

[0457] When the communication device 600 is a chip, the chip includes a transceiver, a memory, and a processor. The transceiver can be an input / output circuit or a communication interface; the processor can be a processor integrated on the chip, a microprocessor, or an integrated circuit. In the above method embodiments, the transmitting operation of the second device can be understood as the chip's output, and the receiving operation of the second device in the above method embodiments can be understood as the chip's input.

[0458] Based on the above embodiments, this application also provides a computer program product including computer-executable instructions, which, when run, causes the methods provided in the above embodiments to be executed.

[0459] Based on the above embodiments, this application also provides a computer-readable storage medium storing a computer program, which, when executed by a computer, causes the computer to perform the methods provided in the above embodiments.

[0460] The storage medium can be any available medium that a computer can access. For example, but not limited to, a computer-readable medium can include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.

[0461] Based on the above embodiments, this application also provides a chip for reading a computer program stored in a memory and implementing the method provided in the above embodiments.

[0462] Based on the above embodiments, this application provides a chip system including a processor for supporting a computer device in implementing the functions involved in the devices in the above embodiments. In one possible design, the chip system further includes a memory for storing necessary programs and data of the computer device. The chip system may be composed of chips or may include chips and other discrete components.

[0463] In the various embodiments of this application, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions between different embodiments are consistent and can be referenced by each other. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0464] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to this application. It should be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in one or more blocks of the flowchart illustrations and / or one or more blocks of the block diagrams.

[0465] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means that implement the functions specified in one or more flowcharts and / or one or more block diagrams.

[0466] These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process, such that the instructions, which execute on the computer or other programmable apparatus, provide steps for implementing the functions specified in one or more flowcharts and / or one or more block diagrams.

[0467] In this application, the terms "system" and "network" are used interchangeably. "At least one item" refers to one or more items, and "more than one item" refers to two or more items. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone, where A and B can be singular or plural. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. In the textual description of this application, the character " / " generally indicates an "or" relationship between the preceding and following related objects. In the formulaic description of this application, the character " / " generally indicates a "division" relationship between the preceding and following related objects; in other words, in the formulaic description of this application, the character " / " can be a division sign.

[0468] It is understood that the various numerical designations used in the embodiments of this application are merely for descriptive convenience and are not intended to limit the scope of the embodiments of this application. The order of the process numbers described above does not imply the order of execution; the execution order of each process should be determined by its function and internal logic.

[0469] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A communication method, characterized in that, Applied to the first device, comprising: Receive reference signals from M cells, where M is an integer greater than 1; A measurement report is sent, 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 for triggering the 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: the signal quality of the reference signals from the M1 candidate cells, or the relationship between the M1 candidate cells and the first event.

2. The method as described in claim 1, characterized in that, The first cell and the second cell are any two cells from the M1 candidate cells, and also include: Receive first information, the first information being used to indicate a first quantity, the first quantity being equal to the number of reference signals corresponding to the measurement results of the reference signals from the first cell in the measurement report; Receive second information, the second information being used to indicate a second quantity, the second quantity being 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 being the same or different.

3. The method as described in claim 1 or 2, characterized in that, The M cells also include the serving cell, and the measurement report also includes measurement results of reference signals from the serving cell.

4. The method as described in claim 3, characterized in that, Also includes: Receive third information, which is used to indicate whether the first device should report the measurement results of the reference signal from the serving cell.

5. A communication method, characterized in that, Applied to a second device, comprising: A measurement report is received, the measurement report including measurement results of reference signals from M1 candidate cells, where M1 is a positive integer, the M1 candidate cells including M1 candidate cells related to a first event for triggering the transmission of the measurement report, the measurement results of reference signals from the M1 candidate cells in the measurement report being sorted according to at least one of the following: the signal quality of the reference signals from the M1 candidate cells, or the relationship of the M1 candidate cells to the first event.

6. The method as described in claim 5, characterized in that, The first cell and the second cell are any two cells from the M1 candidate cells, and also include: Send a first message, the first message being used to indicate a first quantity, the first quantity being equal to the number of reference signals corresponding to the measurement results of the reference signals from the first cell in the measurement report; Send a second message, which indicates a second quantity 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 may be the same or different.

7. The method as described in claim 5 or 6, characterized in that, The M cells also include the serving cell, and the measurement report also includes measurement results of reference signals from the serving cell.

8. The method as described in claim 7, characterized in that, Also includes: Send a third message, which is used to indicate whether the first device should report the measurement results of the reference signal 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 from the M1 candidate cells. In the measurement report, the order of the measurement results of the reference signal from the first cell and the measurement results of the reference signal from the second cell satisfies at least one of the following: When the signal quality of the first reference signal is greater than that of the second reference signal, the measurement result of the reference signal from the first cell is ahead of the measurement result of the reference signal from the second cell. The first reference signal is the reference signal with the highest signal quality from the first cell, and the second reference signal is the reference signal with the highest signal quality from the second cell. or, When the first average signal quality is greater than the second average signal quality, the measurement result of the reference signal from the first cell is ahead of the measurement result of the reference signal from the second cell. The first average signal quality is the average signal quality of the reference signal from the first cell, and the second average signal quality is the average signal quality of the reference signal from the second cell. or, When the first cell belongs to the first group of candidate cells and the second cell belongs to the second group of candidate cells, the measurement result of the reference signal from the first cell is placed before the measurement result of the reference signal from the second cell. The first group of candidate cells includes candidate cells related to the first event among the M1 candidate cells, and the second group of candidate cells includes candidate cells other than those in the first group of candidate cells among the M1 candidate cells.

10. The method according to any one of claims 1 to 9, characterized in that, The measurement results of the reference signals from the M1 candidate cells also include: the identifier of each candidate cell among the M1 candidate cells.

11. The method according to any one of claims 3, 4, 7 and 8, characterized in that, In the measurement report, The measurement results of the reference signal from the serving cell precede the measurement results of the reference signals from the M1 candidate cells; or, When the signal quality of the third reference signal is greater than that of the fourth reference signal, the measurement result of the reference signal from the third cell is placed before the measurement result of the reference signal from the serving cell. And / or, if the signal quality of the third reference signal is less than that 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, wherein the third cell is any one of the M1 candidate cells, the third reference signal is the reference signal with the highest signal quality from the third cell, and the fourth reference signal is the reference signal with the highest signal quality from the serving cell; or, When 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 placed before the measurement result of the reference signal from the serving cell; And / or, if 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, wherein 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.

12. The method as described in claim 4 or 8, characterized in that, When the third information instructs the first device to report the measurement results of the reference signals from the serving cell, the third information is also used to instruct the first device to report the measurement results of N reference signals from the serving cell, where N is a positive integer.

13. The method according to any one of claims 1 to 12, characterized in that, 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. The measurement report includes the 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 sorted in descending order of the signal quality of the reference signals. N1 is a positive integer.

14. The method as described in claim 13, characterized in that, The measurement results of the N1 reference signals from the fourth cell include: the signal quality of the fifth reference signal among the N1 reference signals, and the differential quality of each reference signal other than the fifth reference signal among the N1 reference signals; wherein, 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.

15. The method as described in claim 14, characterized in that, The fifth reference signal is the reference signal with the highest signal quality among the N1 reference signals.

16. The method according to any one of claims 1 to 13, characterized in that, 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: the signal quality of the sixth reference signal, and the differential quality of each reference signal from the M2 cells other than the sixth reference signal; The sixth reference signal is a reference signal from the M2 cells, and the differential quality of each reference signal is the difference between the signal quality of each reference signal and the signal quality of the sixth reference signal.

17. The method as described in claim 16, characterized in that, The sixth reference signal is the reference signal with the highest signal quality from the first cell among the M2 cells.

18. A communication device, characterized in that, Includes a unit for performing the method as described in any one of claims 1-17.

19. A communication device, characterized in that, Includes a processor for executing computer programs or instructions that cause the apparatus to perform the method as described in 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, which, when executed, implement the method as described in any one of claims 1-17.

21. A computer program product, characterized in that, The computer program product includes: computer program code, which, when the computer program code is run, implements the method as described in any one of claims 1-17.

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