Communication method and communication apparatus

Abstract

Disclosed in the present application are a communication method and a communication apparatus. The method comprises: performing signal measurement on a plurality of beams of a first cell; and in response to at least one first beam of N beams, sending a measurement report to an access network device, the N beams being N beams among the plurality of beams, N being an integer greater than 1, the first beam being a beam meeting a reporting condition of a measurement event, and the measurement report comprising at least one of the following: the measurement event met by the first beam, an identifier of the first beam, signal quality of the first beam and an identifier of a cell corresponding to the first beam. The method described in the present application helps terminal devices to perform measurement reporting in a timely manner, thereby helping the terminal devices to perform cell synchronization or cell handover in a timely manner.

Description

Communication method and communication apparatus

[0001] The present application claims priority to the Chinese patent application No. 202410855374.5, filed on June 27, 2024, and entitled "A communication method and a communication apparatus", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the field of communication, and in particular to a communication method and a communication apparatus. BACKGROUND

[0003] In a mobile communication system, due to the movement of the location of the terminal device, the communication link between the terminal device and the access network device changes, and the access network device instructs the terminal device to perform cell switching according to the movement of the terminal device. In order to reduce the cell switching delay and further enhance the service continuity, the concept of layer 1 / layer 2 triggered mobility (L1 / L2 triggered mobility, LTM) switching mechanism is proposed. The LTM switching mechanism refers to that the operations related to cell switching are mainly performed in the physical layer (PHY) and the media access control (MAC) layer. In the LTM switching mechanism, the access network device performs cell switching on the terminal device based on the beam measurement result (i.e., L1 measurement result) reported by the terminal device. However, in the case that the beam measurement result changes rapidly or the terminal device moves rapidly, the terminal device may not be able to report the measurement in time, thereby causing the terminal device to fail to perform cell synchronization or cell switching in time. SUMMARY

[0004] The present application provides a communication method and a communication apparatus, which are beneficial for the terminal device to perform cell synchronization or cell switching in time.

[0005] In a first aspect, the present application provides a communication method, which comprises:

[0006] performing signal measurement on a plurality of beams of a first cell;

[0007] in response to at least one first beam in N beams, sending a measurement report to an access network device; the N beams are N beams in the plurality of beams, and N is an integer greater than 1; the first beam is a beam that satisfies the reporting condition of a measurement event; the measurement report comprises at least one of the following: the measurement event satisfied by the first beam, the identifier of the first beam, the signal quality of the first beam, and the identifier of the cell corresponding to the first beam.

[0008] Based on the method described in the first aspect, the terminal device can report the measurement in time, thereby facilitating the terminal device to perform cell synchronization or cell switching in time.

[0009] In a possible embodiment, the N beams are N beams with the best signal quality in the plurality of beams.

[0010] Based on the possible embodiment, the terminal device can timely perform measurement reporting, thereby facilitating the terminal device to timely perform cell synchronization or cell switching.

[0011] In a possible embodiment, before performing the signal measurement on the plurality of beams of the first cell, the method further includes: receiving indication information from the access network device, the indication information indicating the first cell to be measured, the measurement event, the reporting condition of the measurement event, and the value of N.

[0012] Based on the possible embodiment, the first cell to be measured, the measurement event, the reporting condition of the measurement event, and the value of N can be more flexibly configured.

[0013] In a possible embodiment, the measurement report further includes information of a second beam, the second beam being a beam in the N beams that satisfies the measurement event and does not satisfy the reporting condition.

[0014] In a possible embodiment, the information of the second beam includes at least one of the following: an identifier of the second beam, a signal quality of the second beam, an identifier of a cell corresponding to the second beam, and a time length for which the second beam satisfies the measurement event.

[0015] Based on the possible embodiment, the access network device can obtain the information of the beam that satisfies the measurement event and does not satisfy the reporting condition of the measurement event, thereby having a more comprehensive understanding of the information of the beam, and the information of the beam can be used to determine whether the terminal device performs cell synchronization, or to select a beam for the terminal device to perform cell synchronization, or to determine whether the terminal device performs cell switching, or to select a beam for the terminal device to perform cell switching.

[0016] In a second aspect, the present application provides a communication method, the method comprising:

[0017] receiving a measurement report from a terminal device; the measurement report including at least one of the following: a measurement event satisfied by a first beam, an identifier of the first beam, a signal quality of the first beam, and an identifier of a cell corresponding to the first beam; the first beam being a beam in N beams of a first cell that satisfies a reporting condition of the measurement event, N being an integer greater than 1, and the N beams being used to evaluate whether the reporting condition of the measurement event is satisfied.

[0018] In a possible embodiment, the N beams are N beams with the best signal quality in the beams of the first cell.

[0019] In a possible implementation, the indication information indicating the first cell to be measured, the measurement event, the reporting condition of the measurement event, and the value of N can also be sent to the terminal device before receiving the measurement report from the terminal device.

[0020] In a possible implementation, the measurement report further includes information of a second beam, the second beam being a beam in the N beams that satisfies the measurement event and does not satisfy the reporting condition.

[0021] In a possible implementation, the information of the second beam includes at least one of the following: an identifier of the second beam, a signal quality of the second beam, an identifier of a cell corresponding to the second beam, and a length of time during which the second beam satisfies the measurement event.

[0022] The beneficial effects of the second aspect can be referred to the beneficial effects of the first aspect, which are not repeated here.

[0023] In a third aspect, the present application provides a communication method, which includes:

[0024] determining whether a measurement event is satisfied based on a beam signal quality of a serving cell; wherein the beam signal quality of the serving cell is determined in any of the following ways:

[0025] the beam signal quality of the serving cell is an average of signal qualities of M best beams of the serving cell, M being an integer greater than 1; or,

[0026] the beam signal quality of the serving cell is an average of signal qualities of all beams of the serving cell; or,

[0027] the beam signal quality of the serving cell is an average of signal qualities of X best first beams of the serving cell, X being an integer greater than or equal to 1, the first beam being a beam of the serving cell whose signal quality exceeds a threshold T; or,

[0028] the beam signal quality of the serving cell is an average of signal qualities of all first beams of the serving cell, the number of the first beams being less than X, the first beam being a beam of the serving cell whose signal quality exceeds the threshold T; or,

[0029] the beam signal quality of the serving cell is an average of a signal quality of a best beam of the serving cell and a signal quality of a beam of the serving cell currently used by the terminal device; or,

[0030] the beam signal quality of the serving cell is a signal quality of the best beam of the serving cell; or,

[0031] the beam signal quality of the serving cell is a signal quality of the beam of the serving cell currently used by the terminal device.

[0032] Based on the method described in the third aspect, the terminal device can timely perform cell synchronization or cell switching.

[0033] In a possible embodiment, first indication information from the access network device can also be received; the first indication information indicates the value of M, or the first indication information indicates the value of X and / or the value of T.

[0034] Based on the possible embodiment, the value of M can be flexibly configured, or the value of X and / or the value of T can be flexibly configured.

[0035] In a possible embodiment, second indication information from the access network device can also be received, and the second indication information indicates a determination manner of the beam signal quality of the serving cell.

[0036] Based on the possible embodiment, the determination manner of the beam signal quality of the serving cell can be flexibly configured.

[0037] In a fourth aspect, the present application provides a communication apparatus, which comprises units for executing the method of the first aspect or the second aspect or the third aspect.

[0038] In a fifth aspect, the present application provides a chip, which comprises a processor and a communication interface, and the processor is configured to enable the chip to execute the method of the first aspect or the second aspect or the third aspect or the fourth aspect.

[0039] In a sixth aspect, the present application provides a module device, which comprises a communication module, a power supply module, a storage module and a chip, wherein the power supply module is configured to provide power for the module device, the storage module is configured to store data and instructions, the communication module is configured to perform internal communication of the module device or to perform communication between the module device and an external device, and the chip is configured to execute the method of the first aspect or the second aspect or the third aspect or the fourth aspect.

[0040] In a seventh aspect, the present application discloses a communication device, which comprises a memory and a processor, the memory is configured to store a computer program, the computer program comprises program instructions, and the processor is configured to invoke the program instructions to execute the method of the first aspect or the second aspect or the third aspect or the fourth aspect.

[0041] In an eighth aspect, the present application provides a computer readable storage medium, which stores computer readable instructions, and when the computer readable instructions run on a communication device, the communication device executes the method of the first aspect or the second aspect or the third aspect or the fourth aspect.

[0042] In a ninth aspect, the present application provides a computer program or computer program product, comprising codes or instructions, which, when executed on a computer, cause the computer to perform the method of the first aspect or the second aspect or the third aspect or the fourth aspect.

[0043] In a tenth aspect, the present application provides a communication system, comprising a terminal device and an access network device, wherein the terminal device is configured to perform the method of the first aspect, and the access network device is configured to perform the method of the second aspect. BRIEF DESCRIPTION OF DRAWINGS

[0044] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0045] FIG. 1 is a schematic diagram of a system architecture provided by an embodiment of the present application;

[0046] FIG. 2 is a schematic diagram of the overall flow of an LTM switching mechanism provided by an embodiment of the present application;

[0047] FIG. 3 is a flowchart of a communication method provided by an embodiment of the present application;

[0048] FIG. 4 is a flowchart of a communication method provided by an embodiment of the present application;

[0049] FIG. 5 is a structural schematic diagram of a communication apparatus provided by an embodiment of the present application;

[0050] FIG. 6 is a structural schematic diagram of a communication device provided by an embodiment of the present application;

[0051] FIG. 7 is a structural schematic diagram of a module device provided by an embodiment of the present application. DETAILED DESCRIPTION

[0052] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative effort fall within the scope of the present application.

[0053] The terminology used in the description of the embodiments herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the description of the embodiments and the appended claims herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0054] In the embodiments of the present application, "and / or" describes the association relationship of the associated objects, which means that there can be three kinds of relationships. For example, A and / or B can represent the following three cases: A exists alone; A and B exist simultaneously; B exists alone. Wherein, A and B can be singular or plural.

[0055] In the embodiments of the present application, the symbol " / " can represent that the associated objects before and after it are in an "or" relationship. In addition, the symbol " / " can also represent the division sign, that is, perform division operation. For example, A / B can represent A divided by B.

[0056] In the embodiments of the present application, "at least one" or similar expressions mean any combination of these items, including any combination of single item or multiple items, which means one or more, and multiple means two or more than two. For example, at least one of a, b or c can represent the following seven cases: a, b, c, a and b, a and c, b and c, a, b and c. Wherein, each of a, b and c can be an element or a set containing one or more elements.

[0057] In the embodiments of the present application, "equal to" can be used with "greater than" and is applicable to the technical solutions adopted when greater than, or can be used with "less than" and is applicable to the technical solutions adopted when less than. When "equal to" is used with "greater than", it is not used with "less than"; when "equal to" is used with "less than", it is not used with "greater than".

[0058] It should be noted that the terms "first", "second", "third", and the like in the specification and claims of the present application and in the above-described drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a particular order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the application described herein can be implemented in an order other than that illustrated or described herein. In addition, the term "includes" and any variation thereof is intended to cover non-exclusive inclusion, for example, a process, method, system, product or server including a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0059] In order to facilitate the understanding of the embodiments of the present application, the system architecture related to the present application is described below.

[0060] The present application can be applied to a fifth generation (5th generation, 5G) system, also known as a new radio (new radio, NR) system, or a sixth generation (6th generation, 6G) system, or a seventh generation (7th generation, 7G) system, or other future communication systems, or a device to device (device to device, D2D) system, a machine to machine (machine to machine, M2M) system, a vehicle to everything (vehicle to everything, V2X) and the like.

[0061] The present application can be applied to the system architecture shown in FIG. 1. The communication system 10 shown in FIG. 1 can include, but is not limited to, an access network device 110 and a terminal device 120. The number and form of devices in FIG. 1 are used as an example and do not constitute a limitation on the embodiments of the present application. For example, a plurality of terminal devices can be included in an actual application.

[0062] I. Terminal device

[0063] The terminal device can be a device with transceiver function, also known as terminal, user equipment (user equipment, UE), remote terminal device (remote UE), relay device (relay UE), access terminal device, user unit, user station, mobile station, mobile station, remote station, mobile device, user terminal device, smart terminal device, wireless communication device, user agent or user equipment. It should be noted that the relay device is a terminal device that can provide relay forwarding services for other terminal devices (including remote terminal devices).

[0064] For example, the terminal device can be a mobile phone, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (virtual reality, VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a mixed reality (mixed reality, MR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in unmanned automatic driving, a wireless terminal device in remote medical treatment, a wireless terminal device in smart grid, a wireless terminal device in transportation safety, a wireless terminal device in smart city or a wireless terminal device in smart home, etc.

[0065] For example, the terminal device can also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device having wireless communication function, a computing device, or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a next-generation communication system (e.g., an NR communication system, a 6G communication system), or a terminal device in a future evolved public land mobile network (PLMN), etc., without specific limitation.

[0066] In some possible implementations, the terminal device can be deployed on land, including indoors or outdoors, handheld, wearable, or in-vehicle; can be deployed on water (e.g., a ship, etc.); or can be deployed in the air (e.g., an airplane, a balloon, a satellite, etc.).

[0067] In some possible implementations, the terminal device can include a device with wireless communication function, such as a chip system, a chip, or a chip module. For example, the chip system can include a chip and can also include other discrete devices.

[0068] In some possible implementations, the terminal device described in the embodiments of the present application can be a chip, a chip module, a device, a unit, etc., without specific limitation.

[0069] II. Access network device

[0070] The access network device can be a device with transceiver function, which can be used for communication with the terminal device.

[0071] In some possible implementations, the access network device can be responsible for radio resource management (RRM) on the air interface side, quality of service (QoS) management, data compression and encryption, data transmission, etc.

[0072] In some possible implementations, the access network device can include a base station (BS) in a communication system or a device deployed in a radio access network (RAN) for providing wireless communication function, i.e., the access network device can include a device in the RAN.

[0073] For example, the device in the RAN can include an evolutional node B (eNB or eNodeB) in an LTE communication system, a next generation evolved node B (ng-eNB) in an NR communication system, a next generation node B (gNB) in an NR communication system, a master node (MN) in a dual connectivity architecture, a secondary node or a secondary node (SN) in a dual connectivity architecture, etc., without specific limitation thereto.

[0074] In some possible implementations, the access network device can include a device in a core network (CN).

[0075] For example, the device in the CN can include an access and mobility management function (AMF), a user plane function (UPF), a session management function (SMF), etc.

[0076] In some possible implementations, the access network device can also be an access point (AP) in a WLAN, a relay station, a communication device in a future evolved PLMN network, a communication device in an NTN network, etc.

[0077] In some possible implementations, the access network device can include an apparatus having a wireless communication function for providing a terminal device, such as a chip system, a chip, a chip module. For example, the chip system can include a chip, or can include other discrete devices.

[0078] In some possible implementations, the access network device can communicate with an Internet Protocol (IP) network. For example, the Internet, a private IP network, or other data network, etc.

[0079] In some possible implementations, the access network device can include one standalone node to implement the functions of the above-mentioned base station, or can include two or more standalone nodes to implement the functions of the above-mentioned base station. For example, the access network device includes a centralized unit (CU) and a distributed unit (DU), such as a gNB-CU and a gNB-DU. Further, in some other embodiments of the present application, the access network device can also include an active antenna unit (AAU). Among them, the CU implements part of the functions of the access network device, and the DU implements another part of the functions of the access network device. For example, the CU is responsible for processing non-real-time protocols and services, and implements the functions of the radio resource control (RRC) layer, the service data adaptation protocol (SDAP) layer, and the packet data convergence protocol (PDCP) layer. The DU is responsible for processing the physical layer protocol and real-time services, and implements the functions of the radio link control (RLC) layer, the medium access control (MAC) layer, and the physical (PHY) layer. In addition, the AAU can implement part of the physical layer processing function, the radio frequency processing, and the related function of the active antenna. Since the information of the RRC layer will eventually become the information of the PHY layer, or be converted from the information of the PHY layer, in this network deployment, the high-layer signaling (such as RRC signaling) can be considered as generated by the CU, transmitted by the DU, or transmitted by the DU and the AAU together. It can be understood that the access network device can include at least one of the CU, the DU, and the AAU. In addition, the CU can be divided into a RAN device, or the CU can also be divided into a core network device, which is not limited specifically.

[0080] In some possible implementations, the access network device can be any of multiple sites for coherent joint transmission (CJT) with the terminal device, or other sites outside the multiple sites, or other access network devices in network communication with the terminal device, without specific limitation. The multiple-site coherent joint transmission can be joint coherent transmission of multiple sites, or different data belonging to a same physical downlink shared channel (PDSCH) is transmitted to the terminal device from different sites, or multiple sites are virtually formed into one site for transmission, and other standards specify the same meaning of the name, which is also applicable to the present application, that is, the present application does not limit the name of the parameter. The site in the multiple-site coherent joint transmission can be a remote radio head (RRH), a transmission and reception point (TRP), an access network device, etc., without specific limitation.

[0081] In some possible implementations, the access network device can be any of multiple sites for non-coherent joint transmission with the terminal device, or other sites outside the multiple sites, or other access network devices in network communication with the terminal device, without specific limitation. The multiple-site non-coherent joint transmission can be joint non-coherent transmission of multiple sites, or different data belonging to a same PDSCH is transmitted to the terminal device from different sites, or different data belonging to a same PDSCH is transmitted to the terminal device from different sites, and other standards specify the same meaning of the name, which is also applicable to the present application, that is, the present application does not limit the name of the parameter. The site in the multiple-site non-coherent joint transmission can be an RRH, a TRP, an access network device, etc., without specific limitation.

[0082] In some possible implementations, the access network device can have a mobile characteristic, for example, the access network device can be a mobile device. Alternatively, the access network device can be a satellite, a balloon station. For example, the satellite can be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) satellite, etc. Alternatively, the access network device can also be a base station arranged at a position on land, water, etc.

[0083] In some possible implementations, the access network device can serve a cell, and a terminal device in the cell can communicate with the access network device through a transmission resource (such as a frequency spectrum resource). The cell can be a macro cell, a small cell, a metro cell, a micro cell, a pico cell, a femto cell, or the like.

[0084] In some possible implementations, the access network device described in the embodiments of the present application can be a chip, a chip module, an apparatus, a unit, or the like, and no specific limitation is made in this regard.

[0085] To facilitate understanding of the embodiments of the present application, the related names or terms involved in the present application are described below.

[0086] I. Layer 1 (L1) measurement

[0087] The layer 1 measurement generally refers to a beam level measurement. The layer 1 measurement can also be referred to as a beam measurement. Optionally, the layer 1 measurement includes at least one of the following: synchronization signal and physical boardcast channel (PBCH) block (SSB) measurement, channel state information reference signal (CSIRS). The SSB can be composed of three parts: primary synchronization signals (PSS), secondary synchronization signals (SSS), and PBCH.

[0088] II. Layer 3 (L3) measurement

[0089] In some cases, the layer 3 measurement refers to a radio resource management (RRM) measurement. In some cases, the layer 3 measurement is a cell level measurement. In some cases, the RRM measurement can be understood as the layer 3 measurement.

[0090] III. LTM switching mechanism

[0091] 3GPP introduces LTM switching mechanism in release 18, that is, the service cell switching of the terminal is realized through layer 1 / layer 2 signaling, which will help to reduce the delay, overhead and interruption time during switching. Layer 1 refers to the physical layer; layer 2 refers to one or more layers in the media access control (MAC) layer, the radio link layer control (RLC) layer, the packet data convergence protocol (PDCP) layer, and the service data adaptation protocol (SDAP). L1 / L2 can also be understood as L1 and / or L2, that is, the LTM switching mechanism is mainly participated by L1 and / or L2. In the LTM switching mechanism, the access network device performs cell switching on the terminal device based on the beam measurement result (i.e., L1 measurement result) reported by the terminal device.

[0092] The overall flow of the LTM switching mechanism will be described below in conjunction with FIG. 2, as shown in FIG. 2:

[0093] 201. The terminal device sends a layer 3 measurement report to the access network device in the RRC connected state. Correspondingly, the access network device can receive the layer 3 measurement report.

[0094] 202. The access network device sends an RRC reconfiguration message based on the layer 3 measurement report, and the message includes configuration information of the candidate target cell of LTM. Correspondingly, the terminal device can receive the RRC reconfiguration message.

[0095] The RRC reconfiguration message can also include other measurement configurations.

[0096] 203. The terminal device sends an RRC reconfiguration complete message to the access network device.

[0097] Wherein, steps 201-203 are the LTM preparation phase.

[0098] 204. The terminal device sends an L1 measurement report to the access network device. Correspondingly, the access network device can receive the L1 measurement report.

[0099] Wherein, the access network device can select the candidate target cell / candidate target cell beam for downlink synchronization and / or uplink synchronization with the terminal device based on the L1 measurement report, and make the terminal device perform downlink synchronization and / or uplink synchronization between the selected cell and the beam and the candidate target cell.

[0100] 205a. The terminal device performs downlink synchronization with the candidate target cell.

[0101] 205b. The terminal device performs uplink synchronization with the candidate target cell.

[0102] That is, the terminal device can perform cell synchronization with the candidate target cell in step 205a and step 205b. Step 204-step 205a and step 205b are early synchronization stage.

[0103] 206. The terminal device sends an L1 measurement report of the candidate target cell to the access network device. Accordingly, the access network device can receive the L1 measurement report.

[0104] 207. The access network device selects the candidate target cell / beam for cell switching based on the L1 measurement report.

[0105] 208. The access network device sends a cell switching command to the terminal device through the MAC CE.

[0106] Among them, step 206-step 208 is the cell switching execution stage of LTM.

[0107] Four, measurement event

[0108] For example, the measurement event of LTM can include LTM event 2 (event LTM2), LTM event 3 (event LTM3), LTM event 4 (event LTM4), LTM event 5 (event LTM5).

[0109] LTM event 1: The beam signal quality of the serving cell is higher than an absolute threshold.

[0110] LTM event 2: The beam signal quality of the serving cell is less than an absolute threshold.

[0111] LTM event 3: The beam signal quality of the candidate target cell is higher than the beam signal quality of the serving cell by a relative value.

[0112] LTM event 4: The beam signal quality of the candidate target cell is greater than an absolute threshold.

[0113] LTM event 5: The beam signal quality of the serving cell is less than an absolute threshold 1, and the beam signal quality of the candidate target cell is greater than another absolute threshold 2.

[0114] Other L1 measurement-based measurement events can also be included.

[0115] Five, reporting conditions of measurement events

[0116] When the terminal device detects a measurement event, it needs to determine whether the measurement event meets the reporting condition. When the measurement event meets the reporting condition, the terminal device can report the measurement event to the access network device. For example, the reporting condition of the measurement event can be that the measurement event lasts for a time length of TTT (time to trigger), and the terminal device reports the measurement event to the access network device.

[0117] In the case of rapid change of beam measurement results or rapid movement of the terminal device, the terminal device can not be able to perform measurement reporting in time, thereby causing the terminal device to be unable to perform cell synchronization or cell switching in time. For example, currently, the terminal device only performs reporting evaluation of the measurement event on the beam with the best signal quality of the candidate target cell. If the beam with the best signal quality meets the reporting condition of the measurement event, the terminal device performs measurement reporting. If the beam with the best signal quality does not meet the reporting condition of the measurement event, the terminal device does not perform measurement reporting. In the case of rapid change of beam measurement results or rapid movement of the terminal device, the beam with the best signal quality can not meet the reporting condition of the measurement event. For example, it is assumed that the reporting condition of the measurement event is that the measurement event lasts for 10 milliseconds. If the beam with the best signal quality only lasts for 5 milliseconds of the measurement event, the beam with the best signal quality does not meet the reporting condition of the measurement event. This causes the terminal device to be unable to perform measurement reporting in time, thereby causing the terminal device to be unable to perform cell synchronization or cell switching in time.

[0118] In order to enable the terminal device to perform cell synchronization or cell switching in time, the embodiment of the present application provides a communication method and a communication device. The communication method and the communication device provided by the embodiment of the present application are further described below:

[0119] Please refer to FIG. 3, which is a flow chart of a communication method provided by an embodiment of the present application. The communication method includes steps 301-302. The method execution subject shown in FIG. 3 can be a terminal device and an access network device, or the subject can be a chip in the terminal device and a chip in the access network device. Or the method execution subject shown in FIG. 3 can also be other types of products, and those skilled in the art can further expand according to the disclosure content of the specification. The method execution subject shown in FIG. 3 takes the terminal device and the access network device as an example. Wherein:

[0120] 301. The terminal device performs signal measurement on multiple beams of a first cell.

[0121] 302、the terminal device sends a measurement report to the access network device in response to at least one first beam of N beams; the N beams are N of the multiple beams described above, and N is an integer greater than 1; the first beam is a beam that meets the reporting condition of the measurement event; the measurement report includes at least one of the following: the measurement event met by the first beam, the identifier of the first beam, the signal quality of the first beam, and the identifier of the cell corresponding to the first beam. Correspondingly, the access network device can receive the measurement report.

[0122] That is, the terminal device can send a measurement report to the access network device when there is at least one first beam in the N beams.

[0123] In a possible embodiment, the N beams are the N beams with the best signal quality among the multiple beams of the first cell.

[0124] For example, taking N as 3, the measurement event as LTM event 3, and the reporting condition of LTM event 3 as LTM event 3 lasting for 10 ms. The terminal device performs signal measurement on beams 1-10 of cell 1. Assuming that beams 3, 5, and 7 are the 3 beams with the best signal quality, the signal quality of beam 3 is higher than that of beam 5, and the signal quality of beam 5 is higher than that of beam 7. If there is at least one beam in beams 3, 5, and 7 that meets the reporting condition of LTM event 3, the terminal device can send a measurement report to the access network device. For example, assuming that beams 3 and 5 both meet LTM event 3 but neither meets the reporting condition of LTM event 3, and beam 7 meets LTM event 3 and the reporting condition of LTM event 3, the terminal device can send a measurement report to the access network device, which can include at least one of the following: the measurement event met by beam 7, the identifier of beam 7, the signal quality of beam 7, and the identifier of cell 1 corresponding to beam 7.

[0125] In another possible embodiment, the N beams can also be N beams of the first cell that meet other conditions, which are not limited by the embodiments of the present application.

[0126] In another possible embodiment, the N beams can also be all the measured beams of the first cell by default.

[0127] In a possible embodiment, the access network device can previously send indication information to the terminal device, which can indicate one or more of the following: the first cell to be measured, the measurement event, and the reporting condition of the measurement event. Correspondingly, the terminal device can receive the indication information from the access network device before performing signal measurement on the multiple beams of the first cell. That is, the access network device can previously configure the first cell to be measured and / or the measurement event and / or the reporting condition of the measurement event for the terminal device. Based on this possible embodiment, the terminal device can be flexibly configured for measurement.

[0128] Optionally, the indication information can further indicate the beams to be measured by the first cell. Alternatively, the indication information can not indicate the beams to be measured by the first cell, and the beams to be measured by the first cell can be predefined by the protocol. For example, the protocol can predefine that the terminal device can measure all beams of the first cell by default.

[0129] Optionally, the indication information can further indicate the value of N, so that the value of N can be more flexible. Alternatively, the value of N can be predefined by the protocol, so that the indication overhead can be reduced.

[0130] In another possible embodiment, the protocol can predefine one or more of the following: the first cell to be measured, the measurement event, the reporting condition of the measurement event. Based on the possible embodiment, the indication overhead can be reduced.

[0131] Optionally, the number of the first cells to be measured can be one or more. The number of the measurement events can be one or more. The measurement events corresponding to different first cells can be the same or different. The reporting conditions of different measurement events can be the same or different.

[0132] In a possible embodiment, the measurement report further includes information of a second beam, the second beam being a beam in the N beams that satisfies the measurement event and does not satisfy the reporting condition of the measurement event.

[0133] For example, assuming that beam 3 and beam 5 satisfy LTM event 3 but do not satisfy the reporting condition of LTM event 3, the measurement report can further include information of beam 3 and information of beam 5.

[0134] In a possible embodiment, the information of the second beam includes at least one of the following: an identifier of the second beam, a signal quality of the second beam, an identifier of a cell corresponding to the second beam, a time length for which the second beam satisfies the measurement event.

[0135] For example, assuming that beam 3 and beam 5 satisfy LTM event 3 but do not satisfy the reporting condition of LTM event 3, the measurement report can further include information of beam 3 and information of beam 5. The information of beam 3 includes at least one of the following: an identifier of beam 3, a signal quality of beam 3, an identifier of a cell corresponding to beam 3, a time length for which beam 3 satisfies the measurement event. The information of beam 5 includes at least one of the following: an identifier of beam 5, a signal quality of beam 5, an identifier of a cell corresponding to beam 5, a time length for which beam 5 satisfies the measurement event.

[0136] The access network device acquires the beam information that satisfies the measurement event and does not satisfy the reporting condition of the measurement event, can have a more comprehensive understanding of the information of the beam, and can be used to determine whether the terminal performs cell synchronization, or select a beam for cell synchronization, or determine whether the terminal performs cell switching, or select a beam for cell switching. For example, the access network device can wait for a possible measurement report of the subsequent beam 3 or beam 5, and then make a decision.

[0137] In the embodiments of the present application, after the access network device receives the measurement report, the access network device can select a cell / beam for cell synchronization based on the measurement report, so that the terminal device performs cell synchronization based on the selected cell / beam. Alternatively, after the access network device receives the measurement report, the access network device can select a cell / beam for cell switching based on the measurement report, so that the terminal device performs cell switching based on the selected cell / beam.

[0138] It can be seen that in the method described in FIG. 3, the terminal device can evaluate the reporting condition of the measurement event for a plurality of beams. Only when at least one beam in the plurality of beams satisfies the reporting condition of the measurement event, the terminal device can perform measurement reporting to the access network device. Therefore, based on the method described in FIG. 3, the terminal device can timely perform measurement reporting, thereby facilitating the terminal device to timely perform cell synchronization or cell switching.

[0139] In order to enable the terminal device to timely perform cell synchronization or cell switching, the embodiments of the present application provide a communication method and a communication device. The communication method and the communication device provided by the embodiments of the present application are further described below:

[0140] Please refer to FIG. 4, which is a flow chart of a communication method provided by the embodiments of the present application. The communication method includes step 401. The subject of the method shown in FIG. 4 can be a terminal device, or the subject can be a chip in the terminal device. Alternatively, the subject of the method shown in FIG. 4 can also be other types of products, and those skilled in the art can further expand based on the disclosure of the specification. The subject of the method shown in FIG. 4 is taken as an example of a terminal device. Among them:

[0141] 401. The terminal device determines whether the measurement event is satisfied based on the beam signal quality of the serving cell.

[0142] The determination method of the beam signal quality of the serving cell is any one of the following methods:

[0143] 1) The beam signal quality of the serving cell is the average value of the signal quality of the M best beams of the serving cell, and the M is an integer greater than 1.

[0144] For example, taking M as 3 as an example. The terminal device measures the signal quality of 10 beams of the serving cell. Among them, beam 1-beam 3 are the 3 beams with the best signal quality of the serving cell. The beam signal quality of the serving cell is the average of the signal quality of beam 1-beam 3.

[0145] By taking the average of the signal quality of the M best beams of the serving cell as the beam signal quality of the serving cell, the terminal device can take multiple beams as the input of the measurement event evaluation, which is helpful to avoid the problem of being unable to perform cell synchronization or cell switching in time due to signal jitter of the beam.

[0146] 2) The beam signal quality of the serving cell is the average of the signal quality of all beams of the serving cell.

[0147] For example, the terminal device measures the signal quality of 10 beams of the serving cell. The beam signal quality of the serving cell is the average of the signal quality of beam 1-beam 10.

[0148] By taking the average of the signal quality of all beams of the serving cell as the beam signal quality of the serving cell, the terminal device can take multiple beams as the input of the measurement event evaluation, which is helpful to avoid the problem of being unable to perform cell synchronization or cell switching in time due to signal jitter of the beam.

[0149] 3) The beam signal quality of the serving cell is the average of the signal quality of the X best first beams of the serving cell, and X is an integer greater than or equal to 1, and the first beam is a beam with a signal quality exceeding a threshold value T.

[0150] For example, taking X as 3 as an example. The terminal device measures the signal quality of 10 beams of the serving cell. Among them, the signal quality of beam 1-beam 4 exceeds the threshold value T. The signal quality of beam 1 is greater than that of beam 2, the signal quality of beam 2 is greater than that of beam 3, and the signal quality of beam 3 is greater than that of beam 4. The beam signal quality of the serving cell is the average of the signal quality of beam 1-beam 3.

[0151] By taking the average of the signal quality of the X best first beams of the serving cell as the beam signal quality of the serving cell, the terminal device can take multiple beams as the input of the measurement event evaluation, which is helpful to avoid the problem of being unable to perform cell synchronization or cell switching in time due to signal jitter of the beam.

[0152] 4) The beam signal quality of the serving cell is the average of the signal quality of all first beams of the serving cell, and the number of first beams is less than X, and the first beam is a beam with a signal quality exceeding a threshold value T.

[0153] For example, taking X as 3 as an example. The terminal device measures the signal quality of 10 beams of the serving cell. The signal quality of beam 1 to beam 2 exceeds the threshold value T. The beam signal quality of the serving cell is the average of the signal quality of beam 1 and the signal quality of beam 2.

[0154] By taking the average of the signal quality of all first beams of the serving cell as the beam signal quality of the serving cell, it is beneficial to avoid the problem of being unable to perform cell synchronization or cell switching in time due to signal jitter of the beam.

[0155] In another possible embodiment, the beam signal quality of the serving cell is the average of the signal quality of all first beams of the serving cell, regardless of whether the number of the signal quality of the first beam is less than X.

[0156] 5) The beam signal quality of the serving cell is the average of the signal quality of the best beam of the serving cell and the signal quality of the beam of the serving cell currently used by the terminal device.

[0157] By taking the average of the signal quality of the best beam of the serving cell and the signal quality of the beam of the serving cell currently used by the terminal device as the beam signal quality of the serving cell, the terminal device can take multiple beams as input for evaluation of a measurement event, which is beneficial to avoid the problem of being unable to perform cell synchronization or cell switching in time due to signal jitter of the beam.

[0158] 6) The beam signal quality of the serving cell is the signal quality of the best beam of the serving cell.

[0159] By taking the signal quality of the best beam of the serving cell as the beam signal quality of the serving cell, it is beneficial to perform measurement reporting in time, thereby performing cell synchronization or cell switching in time.

[0160] 7) The beam signal quality of the serving cell is the signal quality of the beam of the serving cell currently used by the terminal device.

[0161] By taking the signal quality of the beam of the serving cell currently used by the terminal device as the beam signal quality of the serving cell, it is beneficial to perform measurement reporting in time, thereby performing cell synchronization or cell switching in time.

[0162] In a possible embodiment, the access network device can send first indication information to the terminal device; the first indication information indicates the value of M, or the first indication information indicates the value of X and / or the value of T. Correspondingly, the terminal device can receive the first indication information.

[0163] Based on this possible embodiment, the value of M can be flexibly configured, or the value of X and / or the value of T can be flexibly configured.

[0164] In another possible embodiment, the value of M can also be predefined by the protocol. Based on this possible embodiment, it is beneficial to reduce the indication overhead.

[0165] In another possible embodiment, the value of X and / or the value of T can also be predefined by the protocol. Based on this possible embodiment, it is beneficial to reduce the indication overhead.

[0166] In a possible embodiment, the access network device can send second indication information to the terminal device, where the second indication information indicates the determination manner of the beam signal quality of the serving cell. Correspondingly, the terminal device can receive the second indication information. Based on this possible embodiment, the terminal device can determine the beam signal quality of the serving cell more flexibly.

[0167] For example, if the second indication information indicates that the determination manner of the beam signal quality of the serving cell is the above-mentioned manner 1, the beam signal quality of the serving cell is the average value of the signal qualities of the M best beams of the serving cell. If the second indication information indicates that the determination manner of the beam signal quality of the serving cell is the above-mentioned manner 3, the beam signal quality of the serving cell is the average value of the signal qualities of the X best first beams of the serving cell. If the second indication information indicates that the determination manner of the beam signal quality of the serving cell is the above-mentioned manner 5, the beam signal quality of the serving cell is the average value of the signal quality of the best beam of the serving cell and the signal quality of the beam of the serving cell currently used by the terminal device.

[0168] In another possible embodiment, the determination manner of the beam signal quality of the serving cell by the terminal device can also be predefined by the protocol. Based on this possible embodiment, it is beneficial to reduce the indication overhead.

[0169] In a possible embodiment, the measurement event can be one or more of the following: LTM event 1, LTM event 2, LTM event 3, LTM event 5. The measurement event can be configured by the access network device or predefined by the protocol, and the embodiments of the present application do not make any limitation.

[0170] It can be seen that in the method described in FIG. 4, it is beneficial for the terminal device to timely perform cell synchronization or cell switching.

[0171] Please refer to FIG. 5, which is a structural schematic diagram of a communication apparatus according to an embodiment of the present application. The communication apparatus can be used to perform part or all of the functions of the terminal device in the above method embodiments. The apparatus can be a terminal device, a device in a terminal device, or a device that can be used in conjunction with a terminal device. The communication apparatus can also be a chip system. The communication apparatus shown in FIG. 5 includes a communication unit 501 and a processing unit 502. The communication unit 501 is configured to transceive data. The communication unit 501 is integrated with a receiving unit and a sending unit. The communication unit 501 can also be referred to as a transceiving unit. Alternatively, the communication unit 501 can also be split into a receiving unit and a sending unit. The processing unit 502 is configured to process data. In this embodiment of the present application, the processing unit 502 is integrated with the communication unit 501. Alternatively, the processing unit 502 can also be independent of the communication unit 501.

[0172] The communication unit 501 is configured to perform signal measurement on a plurality of beams of a first cell.

[0173] The communication unit 501 is further configured to send, in response to at least one first beam in N beams, a measurement report to an access network device; the N beams are N beams in the plurality of beams, N is an integer greater than 1; the first beam is a beam that satisfies a reporting condition of a measurement event; and the measurement report includes at least one of the following: the measurement event satisfied by the first beam, an identifier of the first beam, a signal quality of the first beam, and an identifier of a cell corresponding to the first beam.

[0174] In a possible embodiment, the N beams are N beams with the best signal quality in the plurality of beams.

[0175] In a possible embodiment, the communication unit 501 is further configured to receive, before performing signal measurement on the plurality of beams of the first cell, indication information from the access network device, the indication information indicating a first cell to be measured, a measurement event, a reporting condition of the measurement event, and a value of N.

[0176] In a possible embodiment, the measurement report further includes information of a second beam, the second beam being a beam in the N beams that satisfies the measurement event but does not satisfy the reporting condition.

[0177] In a possible embodiment, the information of the second beam includes at least one of the following: an identifier of the second beam, a signal quality of the second beam, an identifier of a cell corresponding to the second beam, and a length of time during which the second beam satisfies the measurement event.

[0178] Please refer to FIG. 5, which is a structural schematic diagram of a communication apparatus according to an embodiment of the present application. The communication apparatus can be used to perform part or all of the functions of the access network device in the above method embodiments. The apparatus can be an access network device, a device in an access network device, or a device that can be used with an access network device. The communication apparatus can also be a chip system. The communication apparatus shown in FIG. 5 includes a communication unit 501 and a processing unit 502. The communication unit 501 is configured to receive and transmit data. The communication unit 501 is integrated with a receiving unit and a transmitting unit. The communication unit 501 can also be referred to as a transceiver. Alternatively, the communication unit 501 can be split into a receiving unit and a transmitting unit. The processing unit 502 is configured to process data. In this embodiment of the present application, the processing unit 502 is configured to perform the functions of the access network device in the above method embodiments.

[0179] The communication unit 501 is configured to receive a measurement report from a terminal device. The measurement report includes at least one of the following: a measurement event satisfied by a first beam, an identifier of the first beam, a signal quality of the first beam, and an identifier of a cell corresponding to the first beam. The first beam is a beam that satisfies a reporting condition of a measurement event among N beams of a first cell, where N is an integer greater than 1, and the N beams are used to evaluate whether the reporting condition of the measurement event is satisfied.

[0180] In a possible embodiment, the N beams are N beams with the best signal quality among the beams of the first cell.

[0181] In a possible embodiment, the communication unit 501 is further configured to, before receiving the measurement report from the terminal device, send, to the terminal device, indication information indicating the first cell to be measured, the measurement event, the reporting condition of the measurement event, and the value of N.

[0182] In a possible embodiment, the measurement report further includes information of a second beam that is a beam satisfying the measurement event but not satisfying the reporting condition among the N beams.

[0183] In a possible embodiment, the information of the second beam includes at least one of the following: an identifier of the second beam, a signal quality of the second beam, an identifier of a cell corresponding to the second beam, and a length of time during which the second beam satisfies the measurement event.

[0184] Please refer to FIG. 5, which is a structural schematic diagram of a communication apparatus according to an embodiment of the present application. The communication apparatus can be used to perform part or all of the functions of the terminal device in the above method embodiments. The apparatus can be a terminal device, a device in a terminal device, or a device that can be used in conjunction with a terminal device. The communication apparatus can also be a chip system. The communication apparatus shown in FIG. 5 includes a communication unit 501 and a processing unit 502. The communication unit 501 is configured to transceive data. The communication unit 501 is integrated with a receiving unit and a sending unit. The communication unit 501 can also be referred to as a transceiving unit. Alternatively, the communication unit 501 can also be split into a receiving unit and a sending unit. The processing unit 502 is configured to process data. In this embodiment of the present application, the processing unit 502 is configured to perform the following steps.

[0185] The processing unit 502 is configured to determine whether the measurement event is met based on the beam signal quality of the serving cell.

[0186] In this embodiment of the present application, the determination manner of the beam signal quality of the serving cell is any one of the following manners:

[0187] The beam signal quality of the serving cell is the average value of the signal qualities of the M best beams of the serving cell, where M is an integer greater than 1; or,

[0188] The beam signal quality of the serving cell is the average value of the signal qualities of all beams of the serving cell; or,

[0189] The beam signal quality of the serving cell is the average value of the signal qualities of the X best first beams of the serving cell, where X is an integer greater than or equal to 1, and the first beam is a beam of the serving cell whose signal quality exceeds a threshold value T; or,

[0190] The beam signal quality of the serving cell is the average value of the signal qualities of all first beams of the serving cell, where the number of the first beams is less than X, and the first beam is a beam of the serving cell whose signal quality exceeds the threshold value T; or,

[0191] The beam signal quality of the serving cell is the average value of the signal quality of the best beam of the serving cell and the signal quality of the beam of the serving cell currently used by the terminal device; or,

[0192] The beam signal quality of the serving cell is the signal quality of the best beam of the serving cell; or,

[0193] The beam signal quality of the serving cell is the signal quality of the beam of the serving cell currently used by the terminal device.

[0194] In a possible embodiment, the communication unit 501 is configured to receive first indication information from the access network device, where the first indication information indicates the value of M, or the first indication information indicates the value of X and / or the value of T.

[0195] In a possible implementation, the communication unit 501 is configured to receive second indication information from the access network device, where the second indication information indicates a determination manner of the beam signal quality of the serving cell.

[0196] Embodiments of the present application further provide a chip, which can perform the related steps of the terminal device in the foregoing method embodiments. The chip comprises a processor and a communication interface, and the processor is configured to enable the chip to perform the following operations:

[0197] performing signal measurement on the plurality of beams of the first cell;

[0198] sending a measurement report to the access network device in response to at least one first beam in the N beams; the N beams are N beams in the plurality of beams, N is an integer greater than 1; the first beam is a beam satisfying a reporting condition of a measurement event; the measurement report comprises at least one of the following: the measurement event satisfied by the first beam, the identity of the first beam, the signal quality of the first beam, and the identity of the cell corresponding to the first beam.

[0199] In a possible implementation, the N beams are N beams with the best signal quality in the plurality of beams.

[0200] In a possible implementation, before performing the signal measurement on the plurality of beams of the first cell, the chip further receives indication information from the access network device, where the indication information indicates the first cell to be measured, the measurement event, the reporting condition of the measurement event, and the value of N.

[0201] In a possible implementation, the measurement report further comprises information of a second beam, where the second beam is a beam in the N beams that satisfies the measurement event but does not satisfy the reporting condition.

[0202] In a possible implementation, the information of the second beam comprises at least one of the following: the identity of the second beam, the signal quality of the second beam, the identity of the cell corresponding to the second beam, and the length of time during which the second beam satisfies the measurement event.

[0203] Embodiments of the present application further provide a chip, which can perform the related steps of the access network device in the foregoing method embodiments. The chip comprises a processor and a communication interface, and the processor is configured to enable the chip to perform the following operations:

[0204] receiving a measurement report from the terminal device; the measurement report comprises at least one of the following: a measurement event satisfied by a first beam, the identity of the first beam, the signal quality of the first beam, and the identity of the cell corresponding to the first beam; the first beam is a beam in N beams of the first cell that satisfies a reporting condition of a measurement event, N is an integer greater than 1, and the N beams are used to evaluate whether the reporting condition of the measurement event is satisfied.

[0205] In a possible implementation, the N beams are N beams with the best signal quality among beams of the first cell.

[0206] In a possible implementation, before receiving the measurement report from the terminal device, the chip can further send indication information to the terminal device, the indication information indicating the first cell to be measured, the measurement event, the reporting condition of the measurement event, and the value of N.

[0207] In a possible implementation, the measurement report further includes information of a second beam, the second beam being a beam in the N beams that satisfies the measurement event and does not satisfy the reporting condition.

[0208] In a possible implementation, the information of the second beam includes at least one of the following: an identifier of the second beam, a signal quality of the second beam, an identifier of a cell corresponding to the second beam, and a length of time during which the second beam satisfies the measurement event.

[0209] Embodiments of the present application further provide a chip, which can perform the related steps of the terminal device in the foregoing method embodiments. The chip includes a processor and a communication interface, and the processor is configured to cause the chip to perform the following operations:

[0210] determine whether the measurement event is satisfied based on a beam signal quality of a serving cell;

[0211] The determination manner of the beam signal quality of the serving cell is any one of the following manners:

[0212] the beam signal quality of the serving cell is an average value of signal qualities of M best beams of the serving cell, M being an integer greater than 1; or

[0213] the beam signal quality of the serving cell is an average value of signal qualities of all beams of the serving cell; or

[0214] the beam signal quality of the serving cell is an average value of signal qualities of X best first beams of the serving cell, X being an integer greater than or equal to 1, and the first beam being a beam of the serving cell with a signal quality exceeding a threshold value T; or

[0215] the beam signal quality of the serving cell is an average value of signal qualities of all first beams of the serving cell, the number of the first beams being less than X, and the first beam being a beam of the serving cell with a signal quality exceeding a threshold value T; or

[0216] the beam signal quality of the serving cell is an average value of a signal quality of a best beam of the serving cell and a signal quality of a beam of the serving cell currently used by the terminal device; or

[0217] The beam signal quality of the serving cell is the signal quality of the best beam of the serving cell; or

[0218] The beam signal quality of the serving cell is the signal quality of the beam of the serving cell currently used by the terminal device.

[0219] In a possible embodiment, the chip further receives first indication information from the access network device; the first indication information indicates the value of M, or the first indication information indicates the value of X and / or the value of T.

[0220] In a possible embodiment, the chip further receives second indication information from the access network device, and the second indication information indicates a determination manner of the beam signal quality of the serving cell.

[0221] Referring to FIG. 6, FIG. 6 is a structural schematic diagram of a communication device provided by an embodiment of the present application. The communication device 600 can include a memory 601 and a processor 602. Optionally, the communication device 600 further includes a communication interface 603. The memory 601, the processor 602 and the communication interface 603 are connected through one or more communication buses. The communication interface 603 is controlled by the processor 602 to receive or send information.

[0222] The memory 601 can include a read-only memory and a random access memory, and provide the processor 602 with instructions and data. A part of the memory 601 can also include a non-volatile random access memory.

[0223] The communication interface 603 is configured to receive or send data.

[0224] The processor 602 can be a central processing unit (CPU). The processor 602 can also be other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gates or transistor logic components, discrete hardware components, etc. The general-purpose processor can be a microprocessor, and the processor 602 can also be any conventional processor.

[0225] The memory 601 is configured to store program instructions.

[0226] The processor 602 is configured to invoke the program instructions stored in the memory 601.

[0227] The processor 602 invokes program instructions stored in the memory 601, so that the communication device 600 performs the method performed by the terminal device or the access network device in the foregoing method embodiments.

[0228] As shown in FIG. 7, FIG. 7 is a structural schematic diagram of a module device provided in an embodiment of the present application. The module device 700 can perform the related steps of the terminal device or the access network device in the foregoing method embodiments. The module device 700 includes a communication module 701, a power module 702, a storage module 703, and a chip 704.

[0229] The power module 702 is configured to provide power for the module device; the storage module 703 is configured to store data and instructions; the communication module 701 is configured to perform internal communication of the module device, or to perform communication between the module device and an external device; and the chip 704 is configured to perform the method performed by the terminal device or the access network device in the foregoing method embodiments.

[0230] It should be noted that the content not mentioned in the embodiments corresponding to FIG. 6 and FIG. 7 and the specific implementation manners of the steps can be referred to the content of the method embodiments, which will not be described herein.

[0231] An embodiment of the present application further provides a computer readable storage medium, which stores instructions, and when the instructions are run on a processor, the method flow of the method embodiments is implemented.

[0232] An embodiment of the present application further provides a computer program product, and when the computer program product is run on a processor, the method flow of the method embodiments is implemented.

[0233] It should be noted that, for the foregoing method embodiments, the sequences of the described actions are not necessarily required to implement the application and certain actions can be performed in other sequences, or even at the same time. Additionally, certain actions can be left out of the methods described in the embodiments.

[0234] It should be noted that, for the foregoing method embodiments, the sequences of the described actions are not necessarily required to implement the application and certain actions can be performed in other sequences, or even at the same time. Additionally, certain actions can be left out of the methods described in the embodiments.

[0235] The descriptions of the various embodiments provided by the present application can be mutually referred to, and the descriptions of the various embodiments each have a focus. The parts not described in detail in a certain embodiment can be referred to the relevant descriptions of other embodiments. For the convenience and brevity of description, for example, the functions of the various devices and the operations performed by the devices provided by the embodiments of the present application can be referred to the relevant descriptions of the method embodiments of the present application, and the various method embodiments and the various device embodiments can also be referred to, combined, or cited.

[0236] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A communication method, characterized in that, The method includes: Signal measurements were performed on multiple beams in the first cell; In response to at least one first beam among N beams, a measurement report is sent to the access network device; the N beams are N of the plurality of beams, where N is an integer greater than 1; the first beam is a beam that satisfies the reporting conditions of a measurement event; the measurement report includes at least one of the following: the measurement event satisfied by the first beam, the identifier of the first beam, the signal quality of the first beam, and the identifier of the cell corresponding to the first beam.

2. The method according to claim 1, characterized in that, The N beams are the N beams with the best signal quality among the plurality of beams.

3. The method according to claim 1 or 2, characterized in that, Before performing signal measurements on multiple beams of the first cell, the method further includes: Receive indication information from the access network device, the indication information indicating the first cell to be measured, the measurement event, the reporting conditions of the measurement event, and the value of N.

4. The method according to any one of claims 1 to 3, characterized in that, The measurement report also includes information about a second beam, which is one of the N beams that satisfies the measurement event but does not meet the reporting conditions.

5. The method according to claim 4, characterized in that, The information of the second beam includes at least one of the following: the identifier of the second beam, the signal quality of the second beam, the identifier of the cell corresponding to the second beam, and the duration of time for the second beam to satisfy the measurement event.

6. A communication method, characterized in that, The method includes: Receive a measurement report from a terminal device; the measurement report includes at least one of the following: a measurement event satisfied by a first beam, the identifier of the first beam, the signal quality of the first beam, and the identifier of the cell corresponding to the first beam; the first beam is a beam among N beams of the first cell that satisfies the reporting conditions of the measurement event, where N is an integer greater than 1, and the N beams are used to evaluate whether the reporting conditions of the measurement event are met.

7. The method according to claim 6, characterized in that, The N beams are the N beams with the best signal quality among the beams of the first cell.

8. The method according to claim 6 or 7, characterized in that, Before receiving the measurement report from the terminal device, the method further includes: Send indication information to the terminal device, the indication information indicating the first cell to be measured, the measurement event, the reporting conditions of the measurement event, and the value of N.

9. The method according to any one of claims 6 to 8, characterized in that, The measurement report also includes information about a second beam, which is one of the N beams that satisfies the measurement event but does not meet the reporting conditions.

10. The method according to claim 9, characterized in that, The information of the second beam includes at least one of the following: the identifier of the second beam, the signal quality of the second beam, the identifier of the cell corresponding to the second beam, and the duration of time for the second beam to satisfy the measurement event.

11. A communication method, characterized in that, The method includes: Whether a measurement event is satisfied is determined based on the beam signal quality of the serving cell; wherein the beam signal quality of the serving cell is determined in any of the following ways: The beam signal quality of the serving cell is the average of the signal quality of the M best beams of the serving cell, where M is an integer greater than 1; or, The beam signal quality of the serving cell is the average of the signal quality of all beams in the serving cell; or, The beam signal quality of the serving cell is the average of the signal quality of the X best first beams of the serving cell, where X is an integer greater than or equal to 1, and the first beams are the beams of the serving cell whose signal quality exceeds a threshold value T; or... The beam signal quality of the serving cell is the average signal quality of all first beams in the serving cell, the number of first beams is less than X, and the first beams are the beams whose signal quality in the serving cell exceeds a threshold T; or... The beam signal quality of the serving cell is the average of the signal quality of the best beam of the serving cell and the signal quality of the beam of the serving cell currently used by the terminal device; or, The beam signal quality of the serving cell is the signal quality of the best beam of the serving cell; or, The beam signal quality of the serving cell is the signal quality of the beam of the serving cell currently used by the terminal device.

12. The method according to claim 11, characterized in that, The method further includes: Receive first indication information from the access network device; the first indication information indicates the value of M, or the first indication information indicates the value of X and / or the value of T.

13. The method according to claim 11 or 12, characterized in that, The method further includes: Receive second indication information from the access network device, the second indication information indicating the method for determining the beam signal quality of the serving cell.

14. A communication device, characterized in that, The apparatus includes a unit for performing the method as described in any one of claims 1 to 13.

15. A chip, characterized in that, It includes a processor and a communication interface, the processor being configured to perform the method as described in any one of claims 1 to 13.

16. A module device, characterized in that, The module device includes a communication module, a power module, a storage module, and a chip, wherein: The power module is used to provide electrical energy to the module device; The storage module is used to store data and instructions; The communication module is used for internal communication within the module device, or for communication between the module device and external devices; The chip is used to perform the method as described in any one of claims 1 to 13.

17. A communication device, characterized in that, The device includes a memory and a processor, the memory being used to store a computer program, the computer program including program instructions, and the processor being configured to invoke the program instructions to perform the method as described in any one of claims 1 to 13.

18. A computer-readable storage medium, characterized in that, The computer storage medium stores computer-readable instructions, which, when executed on the communication device, cause the communication device to perform the method according to any one of claims 1 to 13.

19. A computer program or computer program product comprising code or instructions that, when executed on a computer, cause the computer to perform the method as described in any one of claims 1 to 13.

20. A communication system, characterized in that, The communication system includes a terminal device and an access network device, wherein the terminal device is used to perform the method of any one of claims 1 to 5, and the access network device is used to perform the method of any one of claims 6 to 10.

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