Wireless communication method, terminal device, and network device

Abstract

Provided are a wireless communication method, a terminal device, and a network device. The method comprises: if a first event is satisfied, a terminal device triggers an action of sending first information to a network device, wherein the first information is associated with a beam failure event predicted by the terminal device. The terminal device is capable of predicting the occurrence of the beam failure event in advance. In addition, on the basis of the first information, the terminal device is capable of providing to the network device an early warning for the occurrence of the beam failure event before the beam failure event has occurred. On the basis of the first information, the network device is capable of performing adaptive adjustment before the potential beam failure event has occurred, thereby reducing the probability of the occurrence of an actual beam failure event to the terminal device, and thus reducing data transmission interruptions caused by the occurrence of the actual beam failure event and improving user throughput experience.

Description

Wireless communication method, terminal device and network device TECHNICAL FIELD

[0001] The present application relates to the technical field of communication, and more particularly, to a wireless communication method, a terminal device and a network device. BACKGROUND

[0002] The beam failure recovery mechanism in the related technology causes a period of data transmission interruption in the beam failure recovery process, which reduces the user throughput experience. In addition, in order to realize fast beam failure recovery, the network side often needs to reserve a lot of non-contention-based random access resources to assist the terminal device to perform beam failure recovery, which is not conducive to network device power saving and random access resource scheduling.

[0003] SUMMARY

[0004] The present application provides a wireless communication method, a terminal device and a network device. The aspects related to the present application are introduced as follows.

[0005] In a first aspect, a wireless communication method is provided, which includes: if a first event is satisfied, triggering, by a terminal device, a behavior of sending first information to a network device; wherein the first information is associated with a beam failure event predicted by the terminal device.

[0006] In a second aspect, a wireless communication method is provided, which includes: receiving, by a network device, first information sent by a terminal device; wherein the first information is associated with a beam failure event predicted by the terminal device, and the sending of the first information is related to a first event.

[0007] In a third aspect, a terminal device is provided, which includes: a triggering unit, configured to trigger, if a first event is satisfied, a behavior of sending first information to a network device; wherein the first information is associated with a beam failure event predicted by the terminal device.

[0008] In a fourth aspect, a network device is provided, which includes: a receiving unit, configured to receive first information sent by a terminal device; wherein the first information is associated with a beam failure event predicted by the terminal device, and the sending of the first information is related to a first event.

[0009] In a fifth aspect, a terminal device is provided, which includes a processor and a memory, the memory is configured to store one or more computer programs, and the processor is configured to invoke the computer programs in the memory to enable the terminal device to perform part or all of the steps in the method of the first aspect.

[0010] In a sixth aspect, a network device is provided, which includes a processor, a memory, and a transceiver. The memory is configured to store one or more computer programs. The processor is configured to invoke the computer programs in the memory to cause the network device to perform some or all of the steps in the method of the second aspect.

[0011] In a seventh aspect, a communication system is provided, which includes the terminal device and / or the network device described above. In another possible design, the system can further include other devices interacting with the terminal device or the network device in the schemes provided by the embodiments.

[0012] In an eighth aspect, a computer-readable storage medium is provided, which stores a computer program. The computer program causes the terminal device and / or the network device to perform some or all of the steps in the methods of the various aspects described above.

[0013] In a ninth aspect, a computer program product is provided, which includes a non-transitory computer-readable storage medium storing a computer program. The computer program is operable to cause the terminal device and / or the network device to perform some or all of the steps in the methods of the various aspects described above. In some implementations, the computer program product can be a software installation package.

[0014] In a tenth aspect, a chip is provided, which includes a memory and a processor. The processor can invoke and run a computer program from the memory to implement some or all of the steps described in the methods of the various aspects described above.

[0015] In the present application, the terminal device can predict in advance that a beam failure event will occur before the possible beam failure event occurs. Based on the first information, the terminal device can warn the network device in advance of the occurrence of the beam failure event before the possible beam failure event occurs. That is, the present application proposes a beam failure warning mechanism. Based on the first information, the network device can make adaptive adjustments before the beam failure event occurs, thereby reducing the probability of the terminal device experiencing a real beam failure event, and further reducing the data transmission interruption caused by the real beam failure event, and improving the user throughput experience. In addition, using the beam failure event prediction mechanism proposed in the present application means that the network device can reduce or even not configure non-contention-based random access resources to assist the terminal device to perform beam failure recovery, which is beneficial to the network device to save energy and reduce the scheduling and management complexity of random access resources. BRIEF DESCRIPTION OF DRAWINGS

[0016] FIG. 1 is a schematic diagram of a wireless communication system to which the embodiments of the present application are applied.

[0017] FIG. 2 is a schematic flowchart of a wireless communication method according to an embodiment of the present application.

[0018] FIGS. 3A-3F are schematic diagrams of reporting a time of first information according to an embodiment of the present application.

[0019] FIG. 4A is a schematic diagram of a media access control (MAC) subheader according to an embodiment of the present application.

[0020] FIG. 4B is a schematic diagram of another MAC subheader according to an embodiment of the present application.

[0021] FIG. 5 is a schematic structural diagram of a terminal device according to an embodiment of the present application.

[0022] FIG. 6 is a schematic structural diagram of a network device according to an embodiment of the present application.

[0023] FIG. 7 is a schematic structural diagram of an apparatus for communication according to an embodiment of the present application. DETAILED DESCRIPTION

[0024] The technical solutions in the present application will be described below with reference to the drawings.

[0025] Communication system

[0026] FIG. 1 is a wireless communication system 100 to which embodiments of the present application are applied. The wireless communication system 100 can include communication devices. The communication devices can include a network device 110 and a terminal device 120. The network device 110 can be a device that communicates with the terminal device 120.

[0027] FIG. 1 exemplarily shows one network device and two terminals. Optionally, the wireless communication system 100 can include multiple network devices and each network device can include other numbers of terminal devices within its coverage, which is not limited in the embodiments of the present application.

[0028] Optionally, the wireless communication system 100 can further include a network controller, a mobile management entity, and other network entities, which are not limited in the embodiments of the present application.

[0029] It should be understood that the technical solutions of the embodiments of the present application can be applied to various communication systems, for example: a 5th generation (5G) system or new radio (NR), a long term evolution (LTE) system, an LTE frequency division duplex (FDD) system, an LTE time division duplex (TDD) system, and the like. The technical solutions provided in the present application can also be applied to future communication systems, such as a 6th generation mobile communication system, a satellite communication system, and the like.

[0030] The terminal device in the embodiments of the present application can also be referred to as a user equipment (UE), an access terminal, a user unit, a user station, a mobile station, a mobile station (MS), a mobile terminal (MT), a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user apparatus. The terminal device in the embodiments of the present application can refer to a device that provides voice and / or data connectivity for a user, and can be used to connect people, things, and machines, such as handheld devices with wireless connection functions, vehicle-mounted devices, and the like. The terminal device in the embodiments of the present application can be a mobile phone, a tablet computer (Pad), a notebook computer, a palm computer, a mobile internet device (MID), a wearable device, a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a wireless terminal in self driving, a wireless terminal in remote medical surgery, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, and the like. Optionally, the UE can be used to act as a base station. For example, the UE can act as a scheduling entity that provides sidelink signals between UEs in vehicle-to-everything (V2X) or device to device (D2D), and the like. For example, a cellular phone and a car communicate with each other using sidelink signals. The cellular phone and the smart home device communicate with each other without relaying the communication signals through the base station.

[0031] The network device in the embodiments of the present application can be a device for communicating with a terminal device. The network device can also include an access network device. The access network device can provide communication coverage for a specific geographic area and can communicate with terminal devices 120 located within the coverage area. The access network device can also be referred to as a radio access network device or a base station, etc. The access network device in the embodiments of the present application can refer to a radio access network (RAN) node (or device) that accesses a terminal device to a wireless network. The access network device can broadly cover various names in the following or be replaced by the following names, such as: Node B (NodeB), evolved Node B (eNB), next generation Node B (gNB), relay station, transmitting and receiving point (TRP), transmitting point (TP), master eNB (MeNB), secondary eNB (SeNB), multi-standard radio (MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, centralized unit-control plane (CU-CP), centralized unit-user plane (CU-UP), etc. The base station can be a macro base station, a micro base station, a relay node, a donor node, or the like, or a combination thereof. The base station can also refer to a communication module, modem, or chip used in the aforementioned device or apparatus. The base station can also be a mobile switching center and a device that performs the function of a base station in D2D, V2X, machine-to-machine (M2M) communication, a network side device in a 6G network, a device that performs the function of a base station in a future communication system, etc. The base station can support networks of the same or different access technologies. The embodiments of the present application do not limit the specific technology and specific device form adopted by the access network device.

[0032] The base station can be fixed or mobile. For example, a helicopter or unmanned aerial vehicle can be configured to act as a mobile base station, and one or more cells can move according to the location of the mobile base station. In other examples, the helicopter or unmanned aerial vehicle can be configured to act as a device that communicates with another base station.

[0033] The communication devices involved in the wireless communication system can include not only access network devices and terminal devices, but also core network elements. The core network element can be implemented by a device, that is, the core network element is a core network device. It can be understood that the core network device can also be a kind of network device.

[0034] The core network element in the embodiment of the present application can include a network element that processes and forwards signaling and data of a user. For example, the core network device can include a core network access and mobility management function (core access and mobility management function, AMF), a session management function (session management function, SMF), a location management function (location management function, LMF), a network slice selection function (network slice selection function, NSSF), an authentication server function (authentication server function, AUSF), a unified data management (unified data management, UDM), a policy control function (policy control function, PCF), a user plane function (user plane function, UPF), a sensing function (sensing function, SF), a network data analytics function (network data analytics function, NWDAF) network element, an artificial intelligence (artificial intelligence, AI) function management entity, etc. Of course, other network elements can also be included in the core network, which are not listed here.

[0035] In some deployments, the network device in the embodiment of the present application can refer to a CU or a DU, or the network device includes a CU and a DU. The gNB can also include an AAU.

[0036] The network device and the terminal device can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; can also be deployed on the water surface; can also be deployed on the aircraft, balloon and satellite in the air. The scene where the network device and the terminal device are located is not limited in the embodiment of the present application.

[0037] It should be understood that all or part of the functions of the communication device in this application can also be implemented by software functions running on hardware, or by virtualized functions instantiated on a platform, such as a cloud platform.

[0038] Wave speed management function

[0039] Some communication systems, such as 5G systems, provide a beam management function. In the beam management function, a terminal device can detect a beam failure event. The beam failure detection process is described below.

[0040] When the physical layer of the terminal device detects that the block error rate (BLER) of all beams corresponding to the physical downlink control channel (PDCCH) is worse than the specified threshold, it is recorded as a beam failure instance (BFI), and a BFI is reported to the MAC layer.

[0041] The MAC layer maintains a related beam failure detection timer and a beam failure counter (BFI_COUNTER). In order to ensure the reliability of beam failure detection, whenever the MAC layer receives a BFI report, the beam failure detection timer is started or restarted, and the beam failure counter is incremented by 1. If the beam failure detection timer expires, the terminal device will reset the beam failure counter (i.e. take the value 0). If the beam failure counter reaches a specified maximum value during the running of the beam failure detection timer, the MAC layer of the terminal device will judge that a beam failure event has occurred.

[0042] As can be seen, the beam failure recovery mechanism in the related art is aimed at how to recover the connection of the beam after the beam failure actually occurs. Although such a mechanism can recover the connection of the beam, it will cause a period of data transmission interruption during the beam failure recovery process, reducing the user throughput experience. In addition, under this mechanism, in order to achieve fast beam failure recovery, the network side often needs to reserve a lot of non-contention-based random access resources to assist the terminal device in performing beam failure recovery, which is not conducive to network device power saving and random access resource scheduling.

[0043] FIG. 2 is a schematic flowchart of a wireless communication method according to an embodiment of the present application. The method shown in FIG. 2 can be performed by a terminal device and a network device. The method shown in FIG. 2 can include step S210.

[0044] At step S210, the terminal device triggers the behavior of sending the first information to the network device. Correspondingly, the network device can receive the first information sent by the terminal device.

[0045] The sending of the first information is related to the first event. For example, if the first event is satisfied, the terminal device triggers the behavior of sending the first information to the network device. For another example, if the network device receives the first information, the network device can determine that the terminal device triggers the reporting behavior of the first information under the condition that the first event occurs.

[0046] As a possible implementation, the time of triggering the terminal device to send the first information to the network device can be determined based on the time when the first event is satisfied. For example, when the first event is satisfied, the terminal device triggers the behavior of sending the first information to the network device. That is, in the case that the first event is satisfied, the terminal device is triggered to immediately send the first information to the network device.

[0047] The first information is associated with a beam failure event predicted by the terminal device. In this application, the terminal device can predict that a beam failure event may occur at a certain time or time period in the future before the beam failure event actually occurs. Such a beam failure event can be referred to as a beam failure event predicted by the terminal device. For example, the terminal device can predict the beam failure event based on AI technology.

[0048] In this application, the terminal device can predict in advance that a beam failure event will occur before the possible beam failure event occurs. Based on the first information, the terminal device can warn the network device in advance of the occurrence of the beam failure event before the possible beam failure event occurs. That is, this application proposes a beam failure warning mechanism. Based on the first information, the network device can make adaptive adjustment before the possible beam failure event occurs, thereby reducing the probability of the terminal device occurring a real beam failure event, and further reducing the data transmission interruption caused by the real beam failure event, and improving the user throughput experience. In addition, using the beam failure event prediction mechanism proposed in this application means that the network device can reduce or even not configure non-contention-based random access resources to assist the terminal device to perform beam failure recovery, which is beneficial to the network device to save energy and reduce the complexity of scheduling and managing random access resources.

[0049] In some embodiments, the first event can be implemented in any of the following six implementation manners. The following will be described respectively.

[0050] Implementation manner one

[0051] In the first implementation, the first event includes: the terminal device predicts that a beam failure event is likely to occur after a first time length. In other words, if the terminal device predicts that a beam failure event is likely to occur after a first time length, the terminal device can trigger the behavior of sending first information to the network device.

[0052] As a possible implementation, the first event can include: reaching t0 moment.

[0053] In this application, at t0 moment, the terminal device predicts that a beam failure event is likely to occur after a first time length. The moment corresponding to the first time length after t0 moment is t3 moment. That is, t3 moment is a future moment of t0 moment, and the time interval between t3 moment and t0 moment is the first time length.

[0054] Exemplarily, t0 moment is any one moment during the execution of beam failure detection by the terminal device. The beam failure detection process can be implemented by a technical solution provided by a related technology.

[0055] The first implementation will be described below in combination with FIG. 3A. As shown in FIG. 3A, t0 moment is the current moment of the terminal device, and t3 moment is a future moment corresponding to the first time length after t0 moment. At t0 moment, the first event is satisfied, and the terminal device triggers the behavior of sending first information to the network device.

[0056] As can be known from the first implementation, the terminal device can immediately trigger the reporting of first information when predicting that a beam failure event is likely to occur after a first time length, without the need for additional judgment of other conditions.

[0057] In the second implementation, the judgment condition for the terminal device to report first information is simple, and the network device can also timely obtain the beam failure event prediction of the terminal device, so as to facilitate the network device to timely adjust the beam management strategy, reduce the occurrence of beam failure events, and also indirectly improve the user throughput and optimize the user experience.

[0058] Second implementation

[0059] In the second implementation, the first event includes: reaching t1 moment. The time interval between t1 moment and t0 moment is a second time length. In other words, after the terminal device predicts that a beam failure event is likely to occur after a first time length, the terminal device can trigger the behavior of sending first information to the network device after a second time length.

[0060] In this application, at t0 moment, the terminal device predicts that a beam failure event is likely to occur after a first time length. The moment corresponding to the first time length after t0 moment is t3 moment.

[0061] Exemplarily, the t0 moment is any one of moments during which the terminal device performs beam failure monitoring. The beam failure monitoring process can be implemented by using a technical solution provided by a related technology.

[0062] In some embodiments, the t1 moment is later than the t0 moment, i.e., the t1 moment is a future moment of the t0 moment. In other words, the t1 moment is a moment corresponding to a second time length after the t0 moment.

[0063] In some embodiments, the t1 moment is earlier than the t3 moment, i.e., the second time length is less than the first time length. When the t1 moment is reached, the t3 moment has not been reached. Therefore, the first information is triggered to be sent at the t1 moment, and the sending of the first information triggered before the predicted beam failure event occurs can still be implemented, i.e., the beam failure warning can be implemented.

[0064] The implementation manner two is described below in combination with FIG. 3B. As shown in FIG. 3B, a time interval between the t1 moment and the t0 moment is a second time length. At the t1 moment, the first event is satisfied, and the terminal device triggers the behavior of sending the first information to the network device.

[0065] As can be known from the implementation manner two, the terminal device triggers the first information reporting after a second time length after predicting the beam failure event. That is, when the beam failure event is predicted (i.e., at the t0 moment), the terminal device does not immediately trigger the first information reporting behavior, but delays the first information reporting behavior for a second time length.

[0066] Under the implementation manner two, the judgment condition for the terminal device to report the first information is relatively simple. In some cases, it is not necessary to urgently report the first information, because the network device can consider that the t0 moment is not enough to determine that the beam failure event will occur soon, and it is not necessary to intervene too early. Only when the first information is reported at the t1 moment closer to the t3 moment, the network device can know that the beam failure event is imminent, so as to make a modification on the beam management strategy. In addition, the implementation manner two can also reduce the occurrence of the beam failure event, thereby indirectly improving the user throughput and optimizing the user experience.

[0067] Implementation manner three

[0068] In the implementation manner three, the first event includes: reaching a t2 moment. A time interval between the t3 moment and the t2 moment is a third time length. A time interval between the t3 moment and the t0 moment is a first time length. In other words, if the terminal device predicts that the beam failure event can occur after the first time length, the terminal device can trigger the behavior of sending the first information to the network device at a moment in advance of the third time length from the moment when the predicted beam failure event occurs.

[0069] In the present application, at t0 moment, the terminal device predicts that the beam failure event is likely to occur after the first time length. The moment corresponding to the first time length after t0 moment is t3 moment.

[0070] Exemplarily, t0 moment is any moment during the beam failure monitoring performed by the terminal device. The beam failure monitoring process can be implemented by a technical solution provided by a related technology.

[0071] In some embodiments, t2 moment is later than t0 moment, i.e., t2 moment is a future moment of t0 moment. That is, the third time length is less than the first time length. When the terminal device predicts that the beam failure event is likely to occur (i.e., at t0 moment), t2 moment is a future moment.

[0072] In some embodiments, t2 moment is earlier than t3 moment, i.e., when t2 moment is reached, t3 moment has not been reached. Therefore, the first information reporting behavior is triggered at t2 moment, and the beam failure warning can still be achieved.

[0073] The third implementation manner is described below in combination with FIG. 3C. As shown in FIG. 3C, the time interval between t3 moment and t2 moment is the third time length. At t2 moment, the first event is satisfied, and the terminal device triggers the behavior of sending the first information to the network device.

[0074] As can be known from the third implementation manner, when the beam failure event is predicted (i.e., at t0 moment), the terminal device does not immediately trigger the reporting behavior of the first information, but triggers the reporting behavior of the first information at a moment that is the third time length earlier than the predicted occurrence moment of the beam failure event.

[0075] In the third implementation manner, the judgment condition for the terminal device to report the first information is relatively simple. In some cases, there is no need to urgently report the first information, because the network device can consider that t0 moment is not enough to determine that the beam failure event will occur soon, and it is unnecessary to intervene too early. Only when the first information is reported at t2 moment that is closer to t3 moment, the network device can know that the beam failure event is imminent, so as to make a modification on the beam management strategy. In addition, the third implementation manner can also reduce the occurrence of the beam failure event, and indirectly improve the user throughput and optimize the user experience.

[0076] Fourth implementation manner

[0077] In the fourth implementation manner, the first event includes: reaching any moment between t0 moment and t3 moment. In other words, if the terminal device predicts that the beam failure event is likely to occur after the first time length, the terminal device can immediately or later trigger the behavior of sending the first information to the network device.

[0078] In the present application, at the t0 moment, the terminal device predicts that the beam failure event can occur after the first time length. The moment corresponding to the first time length after the t0 moment is the t3 moment.

[0079] Exemplarily, the t0 moment is any moment during the beam failure monitoring performed by the terminal device. The beam failure monitoring process can be implemented by a technical solution provided by a related technology.

[0080] In some embodiments, the moment of triggering the first information reporting can coincide with the t0 moment.

[0081] In some embodiments, the moment of triggering the first information reporting can be later than the t0 moment, that is, the moment of triggering the first information reporting can be a future moment of the t0 moment. That is, when the terminal device predicts that the beam failure event can occur after the first time length (that is, at the t0 moment), the terminal device can not immediately trigger the reporting behavior of the first information.

[0082] In some embodiments, the moment of triggering the first information reporting can be earlier than the t3 moment. Therefore, based on the first event in implementation manner four, the beam failure warning can still be achieved.

[0083] The implementation manner four will be described below in combination with FIG. 3D. As shown in FIG. 3D, at any moment between the t0 moment and the t3 moment, the terminal device can trigger the sending of the first information to the network device. The moment of triggering the first information reporting shown in FIG. 3D is only an example, and the moment can be closer to the t0 moment, or closer to the t3 moment, or coincide with the t0 moment.

[0084] As can be known from the implementation manner four, the terminal device can immediately trigger the first information reporting after predicting the beam failure event, or can trigger the first information reporting after a period of time after predicting the beam failure event, and the specific reporting moment can be flexibly selected by the terminal device.

[0085] In the implementation manner four, the judgment condition of the terminal device triggering the first information reporting is simple and flexible. In addition, the implementation manner four can reduce the occurrence of the beam failure event, and can indirectly improve the user throughput and optimize the user experience.

[0086] Implementation manner five

[0087] In the fifth implementation, the first event includes: reaching the t4 moment. At the t4 moment, the beam measurement result corresponding to the beam with the best beam measurement result in the first beam set measured by the terminal device is less than or equal to the first threshold, and at the t0 moment, the terminal device predicts that the beam failure event is likely to occur after the first time length. The first beam set is a beam set used by the terminal device to perform a beam failure monitoring task. The first beam set can be configured to the terminal device by the network device. In other words, if the terminal device predicts that the beam failure event is likely to occur after the first time length, and the beam measurement result corresponding to the beam with the best beam measurement result in the first beam set measured by the terminal device is less than or equal to the first threshold, the terminal device triggers the behavior of sending the first information to the network device.

[0088] In the present application, at the t0 moment, the terminal device predicts that the beam failure event is likely to occur after the first time length. The moment corresponding to the first time length after the t0 moment is the t3 moment.

[0089] Exemplarily, the t0 moment is any moment during the execution of the beam failure monitoring by the terminal device. The beam failure monitoring process can be implemented by a technical solution provided by a related technology.

[0090] In some embodiments, the t4 moment can coincide with the t0 moment. If at the t0 moment, the terminal device predicts that the beam failure event will occur at the t3 moment and the beam measurement result corresponding to the beam with the best beam measurement result in the first beam set measured by the terminal device is less than or equal to the first threshold, the t4 moment is equal to the t0 moment, and the moment of triggering the reporting of the first information is the t0 moment.

[0091] In some embodiments, the t4 moment can be later than the t0 moment, that is, the t4 moment can be a future moment of the t0 moment. That is, when the terminal device predicts that the beam failure event is likely to occur after the first time length (that is, at the t0 moment), the terminal device does not immediately trigger the reporting behavior of the first information. If at the t0 moment, the terminal device predicts that the beam failure event will occur at the t3 moment but the beam measurement result corresponding to the beam with the best beam measurement result in the first beam set measured by the terminal device is greater than the first threshold, the t4 moment is a future moment of the t0 moment, and the terminal device needs to wait until the moment when the beam measurement result corresponding to the beam with the best beam measurement result in the first beam set measured by the terminal device is less than or equal to the first threshold to trigger the reporting of the first information.

[0092] In some embodiments, the t4 moment can be earlier than the t3 moment. That is, at the t4 moment, the t3 moment has not yet arrived. Therefore, the sending of the first information at the t4 moment can still achieve beam failure warning.

[0093] The fifth implementation is described below in combination with FIG. 3E. As shown in FIG. 3E, at t4, which is between t0 and t3, the beam measurement result of the beam with the best beam measurement result in the first beam set is less than or equal to the first threshold. t4 is the time at which the terminal device triggers reporting of the first information, t3 is a future time of the terminal device, and t0 is the time at which the terminal device predicts that the beam failure event is likely to occur after the first time length. At t4, the terminal device triggers reporting of the first information.

[0094] It should be noted that t4 shown in FIG. 3E is only an example, and this time can be closer to t0 or closer to t3 or coincide with t0.

[0095] The measurement quantity corresponding to the above beam measurement result is reference signal received power (RSRP), reference signal received quality (RSRQ), or signal to interference plus noise ratio (SINR).

[0096] Compared with the first to fourth implementations, the fifth implementation can reduce unnecessary reporting of the first information. For example, if the beam measurement result of the beam monitored by the terminal device is good enough, there is no need to urgently trigger reporting of the first information, because the network device considers that it is not yet sufficient to determine that the beam failure event will occur soon, and there is no need to intervene too early. Only when the beam measurement result of the beam monitored by the terminal device is poor enough, the network device can know that the beam failure event is imminent, so as to make a modification in beam management strategy. In addition, the fifth implementation can also reduce the occurrence of the beam failure event, and indirectly improve user throughput and optimize user experience.

[0097] The sixth implementation

[0098] In the sixth implementation, the first event includes reaching t5. At t5, the cell-level measurement result of the serving cell of the terminal device is less than or equal to the second threshold, and at t0, the terminal device predicts that the beam failure event is likely to occur after the first time length. In other words, if the terminal device predicts that the beam failure event is likely to occur after the first time length, and the cell-level measurement result of the serving cell of the terminal device is less than or equal to the second threshold, the terminal device triggers sending of the first information to the network device.

[0099] In the present application, at the time t0, the terminal device predicts that the beam failure event is likely to occur after the first time length. The time corresponding to the first time length after the time t0 is the time t3.

[0100] Exemplarily, the time t0 is any time during the execution of the beam failure monitoring by the terminal device. The beam failure monitoring process can be implemented by the technical solutions provided by the related technologies.

[0101] In some embodiments, the time t5 can coincide with the time t0. That is, the time of triggering the reporting of the first information is the time t0. If at the time t0, the terminal device predicts that the beam failure event will occur at the time t3 and the cell-level measurement result of the serving cell of the terminal device at this time is less than or equal to the second threshold, then the time t5 is equal to the time t0.

[0102] In some embodiments, the time t5 can be later than the time t0, that is, the time t5 can be a future time of the time t0. That is, when the terminal device predicts that the beam failure event is likely to occur after the first time length (i.e., at the time t0), the terminal device does not immediately trigger the reporting of the first information. If at the time t0, the terminal device predicts that the beam failure event will occur at the time t3 but the cell-level measurement result of the serving cell of the terminal device at this time is greater than the second threshold, then the time t5 is a future time of the time t0, and the terminal device needs to wait until the time when the cell-level measurement result of the serving cell is less than or equal to the second threshold to trigger the reporting of the first information.

[0103] In some embodiments, the time t5 can be earlier than the time t3. That is, when the time t5 is reached, the time t3 has not yet been reached. Therefore, the sending of the first information at the time t5 can still achieve the beam failure warning.

[0104] It can be understood that if the cell-level measurement result of the serving cell of the terminal device is always greater than the second threshold between the time t0 and the time t3 (including the time t0), the terminal device can not trigger the reporting of the first information at the time t0 to the time t3 (including the time t0), that is, the first event does not always meet at the time t0 to the time t3 (including the time t0).

[0105] The implementation mode six will be described below in combination with FIG. 3F. As shown in FIG. 3F, at the time t5 between the time t0 and the time t3, the cell-level measurement result of the serving cell of the terminal device is less than or equal to the second threshold. At the time t5, the terminal device triggers the reporting of the first information. In FIG. 3F, the time t5 is the time of triggering the reporting of the first information by the terminal device, the time t3 is the time when the predicted beam failure event will occur, and the time t0 is the time when the terminal device predicts that the beam failure event is likely to occur after the first time length.

[0106] It should be noted that the time t5 shown in FIG. 3F is only an example, which can be closer to the time t0 or closer to the time t3, or coincide with the time t0.

[0107] The measurement quantity corresponding to the cell-level measurement result is RSRP, RSRQ or SINR.

[0108] Compared with the first to fourth implementations, the sixth implementation reduces the reporting of unnecessary first information. If the terminal device monitors that the cell-level measurement result of the serving cell is good enough, there is no need to report the first information in a hurry, because the network device will think that it is not yet sufficient to judge that the beam failure event will occur soon, and it is not necessary to intervene too early. Only when the terminal device reports the first information under the condition that the cell-level measurement result of the current serving cell is poor enough, the network device can know that the beam failure event is imminent, so as to make a modification in the beam management strategy. In addition, the sixth implementation can also reduce the occurrence of the beam failure event, and indirectly improve the user throughput and optimize the user experience. In some embodiments, the first time length can satisfy one or more of the following: configured by the network device, predefined. For example, the terminal device can obtain the value of the first time length in a predefined manner, or the network device can notify the terminal device of the value of the first time length through dedicated signaling.

[0109] In some embodiments, the second time length can satisfy one or more of the following: configured by the network device, predefined. For example, the terminal device can obtain the value of the second time length in a predefined manner, or the network device can notify the terminal device of the value of the second time length through dedicated signaling.

[0110] In some embodiments, the third time length can satisfy one or more of the following: configured by the network device, predefined. For example, the terminal device can obtain the value of the third time length in a predefined manner, or the network device can notify the terminal device of the value of the third time length through dedicated signaling.

[0111] In some embodiments, the first threshold value can satisfy one or more of the following: configured by the network device, predefined. For example, the terminal device can obtain the value of the first threshold value in a predefined manner, or the network device can notify the terminal device of the value of the first threshold value through dedicated signaling.

[0112] In some embodiments, the second threshold value can satisfy one or more of the following: configured by the network device, predefined. For example, the terminal device can obtain the value of the second threshold value in a predefined manner, or the network device can notify the terminal device of the value of the second threshold value through dedicated signaling.

[0113] In some embodiments, the terminal device can receive first configuration information sent by the network device. The first configuration information can be used to configure parameters related to the first event. Illustratively, the first configuration information can include one or more of the following: a first parameter, a second parameter, a third parameter, a fourth parameter, and a fifth parameter. Among them, the first parameter is used to indicate the value of the first time length, the second parameter is used to indicate the value of the second time length, the third parameter is used to indicate the value of the third time length, the fourth parameter is used to indicate the value of the first threshold, and the fifth parameter is used to indicate the value of the second threshold.

[0114] For example, in the case where the first event is implemented by any one of implementation manner one to implementation manner six, the first configuration information can include the first parameter. In the case where the first event is implemented by implementation manner one or implementation manner four, the network device can indicate the first parameter through the first configuration information, thereby indicating the value of the first time length. In the case where the first event is implemented by implementation manner two, the network device can indicate the first parameter through the first configuration information, thereby indicating the value of the first time length, and the value of the second time length can be predefined. In the case where the first event is implemented by implementation manner three, the network device can indicate the first parameter through the first configuration information, thereby indicating the value of the first time length, and the value of the third time length can be predefined. In the case where the first event is implemented by implementation manner five, the network device can indicate the first parameter through the first configuration information, thereby indicating the value of the first time length, and the value of the first threshold can be predefined. In the case where the first event is implemented by implementation manner six, the network device can indicate the first parameter through the first configuration information, thereby indicating the value of the first time length, and the value of the second threshold can be predefined.

[0115] For another example, in the case where the first event is implemented by implementation manner two, the first configuration information can include the first parameter and the second parameter. In other words, in the case where the first event is implemented by manner two, the network device can indicate the first parameter and the second parameter through the first configuration information, thereby indicating the values of the first time length and the second time length, respectively.

[0116] For another example, in the case where the first event is implemented by implementation manner three, the first configuration information can include the first parameter and the third parameter. In other words, in the case where the first event is implemented by manner three, the network device can indicate the first parameter and the third parameter through the first configuration information, thereby indicating the values of the first time length and the third time length, respectively.

[0117] For another example, in the case where the first event is implemented by implementation manner five, the first configuration information can include the first parameter and the fourth parameter. In other words, in the case where the first event is implemented by implementation manner five, the network device can indicate the first parameter and the fourth parameter through the first configuration information, thereby indicating the values of the first time length and the first threshold, respectively.

[0118] For another example, in a case where the first event is implemented through implementation manner six, the first configuration information can include the first parameter and the fifth parameter. In other words, in a case where the first event is implemented through implementation manner six, the network device can indicate the first parameter and the fifth parameter through the first configuration information, so as to respectively indicate the value of the first time length and the value of the second threshold.

[0119] In some embodiments, the first information can be carried through one or more of the following: uplink control information (UCI), a media access control control element (MAC CE), and a radio resource control (RRC) message.

[0120] The first information is carried through the MAC CE with shorter latency than through the RRC message. The first information is carried through the MAC CE with more assurance than through the UCI, because the information retransmission is guaranteed by the hybrid automatic repeat request (HARQ) mechanism when carried through the MAC CE, but there is no information retransmission mechanism when carried through the UCI, and the terminal device cannot confirm whether the information transmitted through the UCI is successfully received by the network device.

[0121] In a case where the first information is carried through the MAC CE, the first information can include MAC subheader information. The value of a logical channel indication field included in the MAC subheader information can be a first value, and the first value is associated with a meaning that the terminal device predicts a beam failure event.

[0122] In some embodiments, the first information can only include the MAC subheader information. This implementation is simple and has small overhead. Moreover, the MAC CE has shorter latency than the RRC message and is more reliable than the UCI. In a case where the first information only includes the MAC subheader information, the format of the MAC subheader can be as shown in FIG. 4A or FIG. 4B.

[0123] FIGS. 4A and 4B are format example diagrams of a MAC subheader provided by embodiments of the present application. In FIGS. 4A and 4B, Oct represents a byte (one byte occupies 8 bits), the R information field is a reserved field, and the LCID or eLCID field is a logical channel indication field.

[0124] FIG. 4A shows a first type of MAC subheader. For the first type of MAC subheader, the value of the first value (the value of the first value of the logical channel indication field) is also the value of the index associated with the first value, and each index value is associated with a function or feature, and the association between the index value and the function (or feature) can be defined by the protocol in advance. For example, the value of the first value ranges from 0 to 63, and the value of the index associated with the first value ranges from 0 to 63, and they are one-to-one correspondence. For example, 0 corresponds to 0, 1 corresponds to 1, and so on.

[0125] FIG. 4B shows a second type of MAC subheader. For the second type of MAC subheader, the difference between the value of the index associated with the first value and the value of the first value (the value of the first value of the logical channel indication field) is a constant value, and each index value is associated with a function or feature, and the association between the index value and the function (or feature) can be defined by the protocol in advance. For example, the value of the first value ranges from 0 to 255, and the value of the index associated with the first value ranges from 64 to 319, and they are one-to-one correspondence. For example, 0 corresponds to 64, 1 corresponds to 65, and so on.

[0126] In some embodiments, the first information can include first indication information and / or second information. The first indication information can be used to indicate that the terminal device predicts a beam failure event, and the second information can be used to indicate details of the beam failure event predicted by the terminal device.

[0127] For example, the first information can include first indication information. In other words, through the first information, the terminal device can report to the network device that the terminal device predicts a beam failure event. In this case, the first information can be reported through less transmission resources.

[0128] For example, the first information can include second information. In other words, through the first information, the terminal device can report to the network device details of the beam failure event predicted by the terminal device. In this case, the network device can perform targeted processing according to the details, and the network device can adjust the beam management strategy to reduce or avoid the occurrence of the beam failure event.

[0129] For example, the first information can include first indication information and second information. In other words, through the first information, the terminal device can report to the network device that the terminal device predicts a beam failure event and details of the beam failure event. In this case, the content of the first information reported by the terminal device is more detailed and diverse, and the network device can perform targeted processing according to the details, and the network device can adjust the beam management strategy to reduce or avoid the occurrence of the beam failure event.

[0130] The second information can include one or more of the following: a beam index of a beam with the best measurement result in the second set of beams actually measured; a latest beam measurement result of the beam with the best measurement result in the second set of beams actually measured; a beam index of a beam with the best measurement result in the second set of beams at the first time point predicted; a beam measurement result of the beam with the best measurement result in the second set of beams at the first time point predicted; a beam index of a best beam of the current serving cell actually measured; a latest beam measurement result of the best beam of the current serving cell actually measured; a beam index of the best beam of the current serving cell at the first time point predicted; a beam measurement result of the best beam of the current serving cell at the first time point predicted; third information indicating a length of a time interval between a time point at which the beam failure event predicted by the terminal device occurs and a time point at which the first information is reported.

[0131] It should be noted that the second set of beams is a set of beams used by the terminal device to perform a beam failure monitoring task. The second set of beams is determined based on a configuration of the network device.

[0132] It should be noted that the second set of beams can be the same as the first set of beams described above. Alternatively, the second set of beams can be a subset of the first set of beams.

[0133] It should be noted that the first time point is a time point at which the beam failure event predicted by the terminal device is about to occur. In some implementations, the first time point is the t3 time point described above.

[0134] Optionally, each value of the third information corresponds to a fixed value or a fixed value interval. If each value of the third information corresponds to a fixed value, the implementation is simple. If each value of the third information corresponds to a fixed value interval, the flexibility is greater, and the range of values indicated by the third information is greater.

[0135] The following illustrates different cases of information included in the second information.

[0136] For the case where the second information includes one type of information

[0137] In an implementation, the second information includes a beam index of a beam with the best measurement result in the second set of beams actually measured, or a beam index of a beam with the best measurement result in the second set of beams at the first time point predicted, or a beam index of a best beam of the current serving cell actually measured, or a beam index of the best beam of the current serving cell at the first time point predicted.

[0138] In this implementation, the network device is informed of the current best beam condition or the best beam condition predicted by the terminal device at the time when the beam failure event is expected to occur, so that the network device can timely adjust the beam management strategy to avoid the real occurrence of the beam failure event. For example, the network device can update the beam monitoring configuration according to the second information, replace the serving beam for the terminal device, or perform cell switching and the like.

[0139] In another implementation, the second information can include third information indicating a time interval length between the time when the terminal device predicts the beam failure event to occur and the time when the first information is reported. This implementation can be applied to the fourth implementation of the first event, the fifth implementation of the first event, or the sixth implementation of the first event, because there can be an interval between the time when the first information is reported and the time t0 (or the time t3), and the network device cannot know the time interval length between the time when the first information is reported and the time t0 (or the time t3), so the terminal device needs to report the third information; for the first implementation of the first event, the third information is the first time length, and the network device can know the value of the first time length in advance, so the terminal device can not report the third information; for the second implementation of the first event, the third information is the first time length minus the second time length, and the network device can know the values of the first time length and the second time length in advance, so the terminal device can not report the third information; for the third implementation of the first event, the third information is the third time length, and the network device can know the value of the third time length in advance, so the terminal device can not report the third information.

[0140] Reporting the third information can enable the network device to evaluate the urgency of the beam failure event of the terminal device, so as to flexibly adjust the beam management strategy.

[0141] For the case that the second information contains two kinds of information

[0142] In another implementation, the second information includes a beam identifier corresponding to a beam with the best measurement result in the second beam set actually measured and a beam identifier corresponding to a beam with the best measurement result in the second beam set at the first time predicted; or, a beam identifier corresponding to a best beam of a current serving cell actually measured and a beam identifier corresponding to a best beam of the current serving cell at the first time predicted.

[0143] In this implementation, the network device is informed of the current best beam condition and the best beam condition predicted by the terminal device at the time when the beam failure event is expected to occur, so that the network device can timely adjust the beam management strategy to avoid the real occurrence of the beam failure event. For example, the network device can update the beam monitoring configuration according to the second information, replace the serving beam for the terminal device, or perform cell switching and the like.

[0144] In another implementation, the second information includes a beam identifier corresponding to a beam with the best measurement result in the second set of beams actually measured and a beam identifier of the best beam of the current serving cell actually measured, or includes a beam identifier corresponding to a beam with the best measurement result in the second set of beams predicted at the first time and a beam identifier of the best beam of the current serving cell predicted at the first time.

[0145] Letting the network device know the current best beam situation or the best beam situation predicted by the terminal device at the time when the beam failure event is expected to occur facilitates the network device to timely adjust the beam management strategy and avoid the real occurrence of the beam failure event. For example, the network device can update the beam monitoring configuration, replace the serving beam for the terminal device, or perform cell switching, etc. according to the second information.

[0146] In another implementation, the second information includes a beam identifier corresponding to a beam with the best measurement result in the second set of beams actually measured and the third information, or includes a beam identifier corresponding to a beam with the best measurement result in the second set of beams predicted at the first time and the third information, or includes a beam identifier of the best beam of the current serving cell actually measured and the third information, or includes a beam identifier of the best beam of the current serving cell predicted at the first time and the third information.

[0147] On the one hand, letting the network device know the current best beam situation or the best beam situation predicted by the terminal device at the time when the beam failure event is expected to occur facilitates the network device to timely adjust the beam management strategy and avoid the real occurrence of the beam failure event. For example, the network device can update the beam monitoring configuration, replace the serving beam for the terminal device, or perform cell switching, etc. according to the second information. On the other hand, reporting the third information can let the network device evaluate the emergency degree of the terminal device to have the beam failure event, so as to flexibly adjust the beam management strategy.

[0148] In another implementation, the second information includes a beam identifier corresponding to a beam with the best measurement result in the second set of beams actually measured and the latest beam measurement result of the beam with the best measurement result in the second set of beams actually measured, or includes a beam identifier corresponding to a beam with the best measurement result in the second set of beams predicted at the first time and the beam measurement result of the beam with the best measurement result in the second set of beams predicted at the first time, or includes a beam identifier of the best beam of the current serving cell actually measured and the latest beam measurement result of the best beam of the current serving cell actually measured, or includes a beam identifier of the best beam of the current serving cell predicted at the first time and the beam measurement result of the best beam of the current serving cell predicted at the first time.

[0149] On the one hand, letting the network device know the current best beam situation or the best beam situation predicted by the terminal device at the time when the beam failure event is expected to occur facilitates the network device to timely adjust the beam management strategy and avoid the real occurrence of the beam failure event. For example, the network device can update the beam monitoring configuration, replace the serving beam for the terminal device, or perform cell switching, and the like, according to the second information. On the other hand, reporting the measurement result (actually measured or predicted) of the beam can let the network device evaluate the emergency degree of the terminal device to have the beam failure event, so as to flexibly adjust the beam management strategy.

[0150] For the case that the second information contains three kinds of information

[0151] In another implementation manner, the second information includes the beam identifier corresponding to the beam with the best measurement result in the actually measured second beam set, the beam identifier corresponding to the beam with the best measurement result in the second beam set at the first time predicted, and the third information; or, the beam identifier of the best beam of the actually measured current serving cell, the beam identifier of the best beam of the current serving cell at the first time predicted, and the third information.

[0152] On the one hand, letting the network device know the current best beam situation and the best beam situation predicted by the terminal device at the time when the beam failure event is expected to occur facilitates the network device to timely adjust the beam management strategy and avoid the real occurrence of the beam failure event. For example, the network device can update the beam monitoring configuration, replace the serving beam for the terminal device, or perform cell switching, and the like, according to the second information. On the other hand, reporting the third information can let the network device evaluate the emergency degree of the terminal device to have the beam failure event, so as to flexibly adjust the beam management strategy.

[0153] In another implementation manner, the second information includes the beam identifier corresponding to the beam with the best measurement result in the actually measured second beam set, the beam identifier of the best beam of the actually measured current serving cell, and the third information; or, the beam identifier corresponding to the beam with the best measurement result in the second beam set at the first time predicted, the beam identifier of the best beam of the current serving cell at the first time predicted, and the third information.

[0154] On the one hand, letting the network device know the current best beam situation or the best beam situation predicted by the terminal device at the time when the beam failure event is expected to occur facilitates the network device to timely adjust the beam management strategy and avoid the real occurrence of the beam failure event. For example, the network device can update the beam monitoring configuration, replace the serving beam for the terminal device, or perform cell switching, and the like, according to the second information. On the other hand, reporting the third information can let the network device evaluate the emergency degree of the terminal device to have the beam failure event, so as to flexibly adjust the beam management strategy.

[0155] In another implementation, the second information includes a beam identity of a beam with the best measurement result in the second set of beams actually measured, a latest beam measurement result of the beam with the best measurement result in the second set of beams actually measured, and the third information; or includes a beam identity of a beam with the best measurement result in the second set of beams predicted at the first time, a beam measurement result of the beam with the best measurement result in the second set of beams predicted at the first time, and the third information; or includes a beam identity of a best beam of the current serving cell actually measured, a latest beam measurement result of the best beam of the current serving cell actually measured, and the third information; or includes a beam identity of a best beam of the current serving cell predicted at the first time, a beam measurement result of the best beam of the current serving cell predicted at the first time, and the third information.

[0156] On one hand, letting the network device know the current best beam situation or the best beam situation predicted by the terminal device at the time when the beam failure event is expected to occur facilitates the network device to timely adjust the beam management strategy and avoid the real occurrence of the beam failure event. For example, the network device can update the beam monitoring configuration, replace the serving beam for the terminal device, or perform cell switching, and the like, according to the second information. On the other hand, reporting the third information and the measurement result (actually measured or predicted) of the beam can let the network device evaluate the emergency degree of the beam failure event of the terminal device, so as to flexibly adjust the beam management strategy.

[0157] For the case that the second information contains four kinds of information

[0158] In another implementation, the second information includes a beam identity of a beam with the best measurement result in the second set of beams actually measured, a latest beam measurement result of the beam with the best measurement result in the second set of beams actually measured, a beam identity of a beam with the best measurement result in the second set of beams predicted at the first time, and a beam measurement result of the beam with the best measurement result in the second set of beams predicted at the first time; or includes a beam identity of a best beam of the current serving cell actually measured, a latest beam measurement result of the best beam of the current serving cell actually measured, a beam identity of the best beam of the current serving cell predicted at the first time, and a beam measurement result of the best beam of the current serving cell predicted at the first time.

[0159] On the one hand, the network device is informed of the current best beam condition and the best beam condition predicted by the terminal device at the time when the beam failure event is expected to occur, so that the network device can timely adjust the beam management strategy to avoid the real occurrence of the beam failure event. For example, the network device can update the beam monitoring configuration, replace the serving beam for the terminal device, or perform cell switching, and the like, according to the second information. On the other hand, the reported measurement result (actually measured or predicted) of the beam can enable the network device to evaluate the urgency of the beam failure event of the terminal device, so as to flexibly adjust the beam management strategy.

[0160] In another implementation manner, the second information includes a beam identifier corresponding to a beam with the best measurement result in the second beam set actually measured, a latest beam measurement result of the beam with the best measurement result in the second beam set actually measured, a beam identifier of the best beam of the current serving cell actually measured, and a latest beam measurement result of the best beam of the current serving cell actually measured; or includes a beam identifier corresponding to a beam with the best measurement result in the second beam set at the first time predicted, a beam measurement result of the beam with the best measurement result in the second beam set at the first time predicted, a beam identifier of the best beam of the current serving cell at the first time predicted, and a beam measurement result of the best beam of the current serving cell at the first time predicted.

[0161] The mode has the following beneficial effects: on the one hand, the network device is informed of the current best beam condition or the best beam condition predicted by the terminal device at the time when the beam failure event is expected to occur, so that the network device can timely adjust the beam management strategy to avoid the real occurrence of the beam failure event. The network device can update the beam monitoring configuration, replace the serving beam for the terminal device, or perform cell switching, and the like, according to the second information. On the other hand, the reported measurement result (actually measured or predicted) of the beam can enable the network device to evaluate the urgency of the beam failure event of the terminal device, so as to flexibly adjust the beam management strategy.

[0162] For the case that the second information contains five kinds of information

[0163] In another implementation, the second information includes a beam identifier corresponding to a beam with the best measurement result in the second set of beams actually measured, a latest beam measurement result of the beam with the best measurement result in the second set of beams actually measured, a beam identifier corresponding to a beam with the best measurement result in the second set of beams at the first time point predicted, a beam measurement result of the beam with the best measurement result in the second set of beams at the first time point predicted, and the third information; or includes a beam identifier of a best beam of a current serving cell actually measured, a latest beam measurement result of the best beam of the current serving cell actually measured, a beam identifier of the best beam of the current serving cell at the first time point predicted, a beam measurement result of the best beam of the current serving cell at the first time point predicted, and the third information.

[0164] The mode has the following beneficial effects: on the one hand, the network device knows the current best beam condition and the best beam condition predicted by the terminal device at the time point when the beam failure event occurs, so as to facilitate the network device to timely adjust the beam management strategy and avoid the real occurrence of the beam failure event. The network device can update the beam monitoring configuration according to the second information, replace the serving beam for the terminal device, or perform cell switching and the like. On the other hand, the third information and the measurement results (actually measured and predicted) of the beams can enable the network device to evaluate the emergency degree of the beam failure event of the terminal device, so as to flexibly adjust the beam management strategy.

[0165] In another implementation, the second information includes a beam identifier corresponding to a beam with the best measurement result in the second set of beams actually measured, a latest beam measurement result of the beam with the best measurement result in the second set of beams actually measured, a beam identifier of a best beam of a current serving cell actually measured, a latest beam measurement result of the best beam of the current serving cell actually measured, and the third information; or includes a beam identifier corresponding to a beam with the best measurement result in the second set of beams at the first time point predicted, a beam measurement result of the beam with the best measurement result in the second set of beams at the first time point predicted, a beam identifier of the best beam of the current serving cell at the first time point predicted, a beam measurement result of the best beam of the current serving cell at the first time point predicted, and the third information.

[0166] The mode has the following beneficial effects: on the one hand, the network device knows the best beam condition at present or the best beam condition predicted by the terminal device at the time when the beam failure event is expected to occur, so as to facilitate the network device to timely adjust the beam management strategy and avoid the real occurrence of the beam failure event. For example, the network device can update the beam monitoring configuration, replace the serving beam for the terminal device, or perform cell switching, and the like, according to the second information. On the other hand, the third information and the measurement result (actually measured or predicted) of the beam can enable the network device to evaluate the emergency degree of the beam failure event of the terminal device, so as to flexibly adjust the beam management strategy.

[0167] For the case that the second information contains six kinds of information

[0168] In another implementation manner, the second information includes a beam identifier corresponding to a beam with the best measurement result in the second beam set actually measured, a latest beam measurement result of the beam with the best measurement result in the second beam set actually measured, a beam identifier corresponding to a beam with the best measurement result in the second beam set at the first time predicted, a beam measurement result of the beam with the best measurement result in the second beam set at the first time predicted, a beam identifier of the best beam of the current serving cell actually measured, and a latest beam measurement result of the best beam of the current serving cell actually measured; or includes a beam identifier corresponding to a beam with the best measurement result in the second beam set actually measured, a latest beam measurement result of the beam with the best measurement result in the second beam set actually measured, a beam identifier corresponding to a beam with the best measurement result in the second beam set at the first time predicted, a beam measurement result of the beam with the best measurement result in the second beam set at the first time predicted, a beam identifier of the best beam of the current serving cell at the first time predicted, and a beam measurement result of the best beam of the current serving cell at the first time predicted.

[0169] On the one hand, the network device knows the best beam condition at present and the best beam condition predicted by the terminal device at the time when the beam failure event is expected to occur, so as to facilitate the network device to timely adjust the beam management strategy and avoid the real occurrence of the beam failure event. For example, the network device can update the beam monitoring configuration, replace the serving beam for the terminal device, or perform cell switching, and the like, according to the second information. On the other hand, the measurement result (actually measured or predicted) of the beam can enable the network device to evaluate the emergency degree of the beam failure event of the terminal device, so as to flexibly adjust the beam management strategy.

[0170] In another implementation, the second information includes a beam identifier corresponding to a beam with the best measurement result in the second set of beams actually measured, a latest beam measurement result of the beam with the best measurement result in the second set of beams actually measured, a beam identifier of a best beam of the current serving cell actually measured, a latest beam measurement result of the best beam of the current serving cell actually measured, a beam identifier of the best beam of the current serving cell predicted at the first time, and a beam measurement result of the best beam of the current serving cell predicted at the first time; or includes a beam identifier corresponding to a beam with the best measurement result in the second set of beams predicted at the first time, a beam measurement result of the beam with the best measurement result in the second set of beams predicted at the first time, a beam identifier of a best beam of the current serving cell actually measured, a latest beam measurement result of the best beam of the current serving cell actually measured, a beam identifier of the best beam of the current serving cell predicted at the first time, and a beam measurement result of the best beam of the current serving cell predicted at the first time.

[0171] On one hand, the network device is informed of the current best beam condition and the best beam condition predicted at the time when the beam failure event occurs, so that the network device can adjust the beam management strategy in time to avoid the real occurrence of the beam failure event. For example, the network device can update the beam monitoring configuration, replace the serving beam for the terminal device, or perform cell switching according to the second information; on the other hand, the measurement result (actually measured or predicted) of the beam can enable the network device to evaluate the urgency of the beam failure event of the terminal device, so as to flexibly adjust the beam management strategy.

[0172] For the case that the second information contains seven kinds of information

[0173] In another implementation, the second information includes a beam identifier of a beam with the best measurement result in the second set of beams actually measured, a latest beam measurement result of the beam with the best measurement result in the second set of beams actually measured, a beam identifier of a beam with the best measurement result in the second set of beams predicted at the first time, a beam measurement result of the beam with the best measurement result in the second set of beams predicted at the first time, a beam identifier of the best beam of the current serving cell actually measured, a latest beam measurement result of the best beam of the current serving cell actually measured, and the third information; or includes a beam identifier of a beam with the best measurement result in the second set of beams actually measured, a latest beam measurement result of the beam with the best measurement result in the second set of beams actually measured, a beam identifier of a beam with the best measurement result in the second set of beams predicted at the first time, a beam measurement result of the beam with the best measurement result in the second set of beams predicted at the first time, a beam identifier of the best beam of the current serving cell predicted at the first time, a beam measurement result of the best beam of the current serving cell predicted at the first time, and the third information.

[0174] On the one hand, letting the network device know the current best beam situation and the best beam situation predicted by the terminal device at the time when the beam failure event is expected to occur facilitates the network device to timely adjust the beam management strategy and avoid the real occurrence of the beam failure event. For example, the network device can update the beam monitoring configuration, replace the serving beam for the terminal device, or perform cell switching, and the like, according to the second information. On the other hand, reporting the third information and the measurement result (actually measured or predicted) of the beam can let the network device evaluate the emergency degree of the terminal device to have the beam failure event, so as to flexibly adjust the beam management strategy.

[0175] In another implementation, the second information includes a beam identity of a beam with the best measurement result in the second set of beams actually measured, a latest beam measurement result of the beam with the best measurement result in the second set of beams actually measured, a beam identity of a best beam of the current serving cell actually measured, a latest beam measurement result of the best beam of the current serving cell actually measured, a beam identity of the best beam of the current serving cell predicted at the first time, a beam measurement result of the best beam of the current serving cell predicted at the first time, and the third information; or includes a beam identity of a beam with the best measurement result in the second set of beams predicted at the first time, a beam measurement result of the beam with the best measurement result in the second set of beams predicted at the first time, a beam identity of the best beam of the current serving cell actually measured, a latest beam measurement result of the best beam of the current serving cell actually measured, a beam identity of the best beam of the current serving cell predicted at the first time, a beam measurement result of the best beam of the current serving cell predicted at the first time, and the third information.

[0176] On one hand, the network device is informed of the current best beam condition and the best beam condition predicted by the terminal device at the time when the beam failure event is expected to occur, so that the network device can timely adjust the beam management strategy to avoid the real occurrence of the beam failure event. For example, the network device can update the beam monitoring configuration according to the second information, replace the serving beam for the terminal device, or perform cell switching and the like. On the other hand, the third information and the measurement result (actually measured or predicted) of the beam can enable the network device to evaluate the urgency of the beam failure event of the terminal device, so as to flexibly adjust the beam management strategy.

[0177] For the case that the second information contains eight kinds of information

[0178] In another implementation, the second information includes a beam identity of a beam with the best measurement result in the second set of beams actually measured, a latest beam measurement result of the beam with the best measurement result in the second set of beams actually measured, a beam identity of a best beam of the current serving cell actually measured, a latest beam measurement result of the best beam of the current serving cell actually measured, a beam identity of the best beam of the current serving cell predicted at the first time, a beam measurement result of the best beam of the current serving cell predicted at the first time, and the third information; or includes a beam identity of a beam with the best measurement result in the second set of beams predicted at the first time, a beam measurement result of the beam with the best measurement result in the second set of beams predicted at the first time, a beam identity of the best beam of the current serving cell actually measured, a latest beam measurement result of the best beam of the current serving cell actually measured, a beam identity of the best beam of the current serving cell predicted at the first time, a beam measurement result of the best beam of the current serving cell predicted at the first time, and the third information.

[0179] On the one hand, the network device knows the current best beam situation and the best beam situation predicted by the terminal device at the time when the beam failure event is expected to occur, so as to facilitate the network device to timely adjust the beam management strategy and avoid the real occurrence of the beam failure event. For example, the network device can update the beam monitoring configuration, replace the serving beam for the terminal device, or perform cell switching, and the like, according to the second information. On the other hand, the reported measurement results (actually measured or predicted) of the beams can enable the network device to evaluate the emergency degree of the beam failure event of the terminal device, so as to flexibly adjust the beam management strategy.

[0180] For the case that the second information contains nine kinds of information

[0181] In another implementation manner, the second information includes a beam identifier corresponding to a beam with the best measurement result in the actually measured second beam set, a latest beam measurement result of the beam with the best measurement result in the actually measured second beam set, a beam identifier corresponding to a beam with the best measurement result in the second beam set at the first time point predicted by the terminal device, a beam measurement result of the beam with the best measurement result in the second beam set at the first time point predicted by the terminal device, a beam identifier of the best beam of the current serving cell actually measured, a latest beam measurement result of the best beam of the current serving cell actually measured, a beam identifier of the best beam of the current serving cell at the first time point predicted, a beam measurement result of the best beam of the current serving cell at the first time point predicted, and the third information.

[0182] The mode has the beneficial effects that: on the one hand, the network device knows the current best beam situation and the best beam situation predicted by the terminal device at the time when the beam failure event is expected to occur, so as to facilitate the network device to timely adjust the beam management strategy and avoid the real occurrence of the beam failure event. For example, the network device can update the beam monitoring configuration, replace the serving beam for the terminal device, or perform cell switching, and the like, according to the second information. On the other hand, the reported third information and the measurement results (actually measured or predicted) of the beams can enable the network device to evaluate the emergency degree of the beam failure event of the terminal device, so as to flexibly adjust the beam management strategy.

[0183] In some embodiments, the second information can be carried by one or more of the following: UCI, MAC CE, RRC message.

[0184] The second information is carried by the MAC CE with shorter delay than by the RRC message. The second information is carried by the MAC CE with more guarantee than by the UCI, because the information retransmission is guaranteed by the HARQ mechanism when the information is carried by the MAC CE, but there is no information retransmission mechanism when the information is carried by the UCI, and the terminal device cannot confirm whether the information transmitted by the UCI is successfully received by the network device.

[0185] In some embodiments, in the case that the second information is carried by the MAC CE, the first information can further comprise MAC subheader information. Examples of the MAC subheader information are described above (e.g., FIG. 4A and FIG. 4B), which are not repeated here. Optionally, a value of a logical channel indication field contained in the MAC subheader information is the first value, and the first value is associated with a meaning that the terminal device predicts the beam failure event. The second information indicates detailed information related to the beam failure event.

[0186] In some embodiments, the reporting of the first information can be subject to a first timer. For example, during the running of the first timer, the terminal device is not allowed to trigger the reporting of the first information.

[0187] By defining the first timer, the terminal device can be prevented from frequently reporting the first information, thereby avoiding excessive signaling overhead.

[0188] Optionally, a starting condition of the first timer can be that the terminal device triggers the reporting of the first information.

[0189] For example, at the moment when the terminal device triggers the reporting of the first information, the terminal device can start the first timer. During the running of the first timer, the terminal device is not allowed to trigger the reporting of the first information again. If the first timer stops or times out, the terminal device can trigger the reporting of the first information again (of course, the first event also needs to be met).

[0190] Optionally, a stopping condition of the first timer can be that a beam failure monitoring configuration of the terminal device is updated or a value of the first timer is updated. For example, if the configuration of the first beam set is updated, the first timer stops. For another example, if the configuration of the second beam set is updated, the first timer stops. For another example, if the first configuration information is updated, the first timer stops. For another example, if the value of the first timer is updated, the first timer stops.

[0191] In some embodiments, the terminal device can receive second configuration information sent by the network device. The second configuration information can comprise a sixth parameter, which is used to indicate a value of the first timer. In other words, the value of the first timer can be configured by the network device to the terminal device. The terminal device can determine the running duration of the first timer according to the second configuration information.

[0192] For example, the running duration of the first timer can be equal to the value of the first timer contained in the second configuration information. For another example, the value of the first timer contained in the second configuration information can be a maximum running duration of the first timer. The running duration of the first timer can be less than or equal to the value of the first timer contained in the second configuration information.

[0193] In some embodiments, the first timer can have a predefined value. In other words, the terminal device can obtain the value of the first timer in a predefined manner.

[0194] In some embodiments, the terminal device can report capability information to the network device. The capability information can be used to indicate whether the terminal device supports the beam failure event prediction function. For example, the capability information can be used to indicate whether the terminal device supports the AI technology-based beam failure event prediction function.

[0195] For example, the capability information can occupy a first bit. The value of the first bit is 0 can indicate that the terminal device does not support the beam failure event prediction function; the value of the first bit is 1 can indicate that the terminal device supports the beam failure event prediction function. Alternatively, the value of the first bit is 1 can indicate that the terminal device does not support the beam failure event prediction function; the value of the first bit is 0 can indicate that the terminal device supports the beam failure event prediction function.

[0196] For another example, in the case that the terminal device does not support the beam failure event prediction function, the terminal device does not report the capability information; in the case that the terminal device supports the beam failure event prediction function, the terminal device reports the capability information.

[0197] The method embodiments of the present application are described in detail above, and the device embodiments of the present application are described in detail below. It should be understood that the description of the method embodiments and the description of the device embodiments correspond to each other, and therefore, the parts not described in detail can be referred to the foregoing method embodiments.

[0198] FIG. 5 is a schematic structural diagram of a terminal device 500 according to an embodiment of the present application. The terminal device 500 can include a triggering unit 510.

[0199] The triggering unit 510 is configured to trigger the behavior of sending first information to the network device if the first event is satisfied; wherein the first information is associated with the beam failure event predicted by the terminal device.

[0200] In some embodiments, the first event comprises: reaching a time t0, at which the terminal device predicts that a beam failure event is likely to occur after a first time length; or, reaching a time t1, wherein a time interval between the time t1 and the time t0 is a second time length; or, reaching a time t2, wherein a time interval between a time t3 and the time t2 is a third time length, and a time interval between the time t3 and the time t0 is the first time length; or, reaching any time between the time t0 and the time t3; or, reaching a time t4, wherein the terminal device predicts that a beam failure event is likely to occur after a first time length at the time t0, and a beam measurement result corresponding to a beam with the best beam measurement result in a first beam set measured by the terminal device at the time t4 is less than or equal to a first threshold value, the time t4 is equal to the time t0 or is a future time of the time t0, and the first beam set is a beam set used by the terminal device to perform a beam failure monitoring task; or, reaching a time t5, wherein the terminal device predicts that a beam failure event is likely to occur after a first time length at the time t0, and a cell-level measurement result of a serving cell of the terminal device at the time t5 is less than or equal to a second threshold value, the time t5 is equal to the time t0 or is a future time of the time t0.

[0201] In some embodiments, the terminal device 500 is further configured to: receive first configuration information sent by the network device, the first configuration information being related to the first event; wherein the first configuration information comprises: a first parameter used to indicate a value of the first time length; or, a first parameter used to indicate a value of the first time length, and a second parameter used to indicate a value of the second time length; or, a first parameter used to indicate a value of the first time length, and a third parameter used to indicate a value of the third time length; or, a first parameter used to indicate a value of the first time length, and a fourth parameter used to indicate a value of the first threshold value; a first parameter used to indicate a value of the first time length, and a fifth parameter used to indicate a value of the second threshold value.

[0202] In some embodiments, the first information comprises first indication information and / or second information, wherein the first indication information is used to indicate that the terminal device predicts a beam failure event, and the second information is used to indicate detailed information related to the beam failure event predicted by the terminal device.

[0203] In some embodiments, the second information comprises one or more of the following: a beam identifier corresponding to a beam with the best measurement result in the second set of beams actually measured; a latest beam measurement result corresponding to the beam with the best measurement result in the second set of beams actually measured; a predicted beam identifier corresponding to a beam with the best measurement result in the second set of beams at the t3 moment; a predicted beam measurement result corresponding to the beam with the best measurement result in the second set of beams at the t3 moment; a beam identifier of a best beam of a current serving cell actually measured; a latest beam measurement result of the best beam of the current serving cell actually measured; a predicted beam identifier of the best beam of the current serving cell at the t3 moment; a predicted beam measurement result of the best beam of the current serving cell at the t3 moment; third information for indicating a length of a time interval between the t3 moment and a moment of reporting the first information; wherein the second set of beams is a set of beams used by the terminal device to perform a beam failure monitoring task.

[0204] In some embodiments, the second information is carried by one or more of the following: UCI, MAC CE, RRC message.

[0205] In some embodiments, in the case where the second information is carried by a MAC CE, the first information further comprises MAC subheader information.

[0206] In some embodiments, a value of a logical channel indication field in the MAC subheader information is a first value, and the first value is associated with a meaning that the terminal device predicts a beam failure event.

[0207] In some embodiments, during running of the first timer, the terminal device is not allowed to trigger reporting of the first information.

[0208] In some embodiments, a starting condition of the first timer comprises that the terminal device triggers reporting of the first information.

[0209] In some embodiments, a stopping condition of the first timer comprises that a beam failure monitoring configuration of the terminal device is updated or a value of the first timer is updated.

[0210] In some embodiments, the terminal device 500 is further configured to: receive second configuration information sent by the network device, the second configuration information comprising a sixth parameter for indicating the value of the first timer.

[0211] In some embodiments, the terminal device 500 is further configured to: send capability information to the network device, the capability information being used to indicate whether the terminal device supports a beam failure event prediction function.

[0212] In an optional embodiment, the triggering unit 510 can include the transceiver 730 and / or the processor 710. The terminal device 500 can further include the memory 720, as shown in FIG. 7.

[0213] FIG. 6 is a schematic structural diagram of a network device 600 provided by an embodiment of the present application. The network device 600 includes a receiving unit 610.

[0214] The receiving unit 610 is configured to receive first information sent by a terminal device; wherein the first information is associated with a predicted beam failure event of the terminal device, and the sending of the first information is related to a first event.

[0215] In some embodiments, the first event includes: reaching a t0 moment, the terminal device predicts that a beam failure event is likely to occur after a first time length at the t0 moment; or reaching a t1 moment, wherein a time interval between the t1 moment and the t0 moment is a second time length; or reaching a t2 moment, wherein a time interval between a t3 moment and the t2 moment is a third time length, a time interval between the t3 moment and the t0 moment is the first time length; or reaching any moment between the t0 moment and the t3 moment; or reaching a t4 moment, wherein the terminal device predicts that a beam failure event is likely to occur after a first time length at the t0 moment, and a beam measurement result corresponding to a beam with the best beam measurement result in a first beam set measured by the terminal device at the t4 moment is less than or equal to a first threshold value, the t4 moment is equal to the t0 moment or the t4 moment is a future moment of the t0 moment, and the first beam set is a beam set used by the terminal device to perform a beam failure monitoring task; or reaching a t5 moment, wherein the terminal device predicts that a beam failure event is likely to occur after a first time length at the t0 moment, and a cell-level measurement result of a serving cell of the terminal device is less than or equal to a second threshold value at the t5 moment, the t5 moment is equal to the t0 moment or the t5 moment is a future moment of the t0 moment.

[0216] In some embodiments, the network device is further configured to: send first configuration information to the terminal device, the first configuration information being related to the first event; wherein the first configuration information comprises: a first parameter, the first parameter being used to indicate a value of the first time length; or a first parameter and a second parameter, the first parameter being used to indicate a value of the first time length, and the second parameter being used to indicate a value of the second time length; or a first parameter and a third parameter, the first parameter being used to indicate a value of the first time length, and the third parameter being used to indicate a value of the third time length; or a first parameter and a fourth parameter, the first parameter being used to indicate a value of the first time length, and the fourth parameter being used to indicate a value of the first threshold; a first parameter and a fifth parameter, the first parameter being used to indicate a value of the first time length, and the fifth parameter being used to indicate a value of the second threshold.

[0217] In some embodiments, the first information comprises first indication information and / or second information, wherein the first indication information is used to indicate that the terminal device predicts a beam failure event, and the second information is used to indicate detailed information related to the beam failure event predicted by the terminal device.

[0218] In some embodiments, the second information comprises one or more of: a beam identifier corresponding to a beam with the best measurement result in the actually measured second beam set; a latest beam measurement result corresponding to the beam with the best measurement result in the actually measured second beam set; a predicted beam identifier corresponding to a beam with the best measurement result in the second beam set at the t3 time; a predicted beam measurement result corresponding to the beam with the best measurement result in the second beam set at the t3 time; a beam identifier of a best beam of a current serving cell actually measured; a latest beam measurement result of the best beam of the current serving cell actually measured; a predicted beam identifier of the best beam of the current serving cell at the t3 time; a predicted beam measurement result of the best beam of the current serving cell at the t3 time; third information used to indicate a length of a time interval between the t3 time and a time when the first information is reported; wherein the second beam set is a beam set used by the terminal device to perform a beam failure monitoring task.

[0219] In some embodiments, the second information is carried by one or more of: a UCI, a MAC CE, and an RRC message.

[0220] In some embodiments, when the second information is carried by a MAC CE, the first information further comprises MAC subheader information.

[0221] In some embodiments, the MAC subheader information includes a logical channel indication field, and a value of the logical channel indication field is a first value, and the first value is associated with a meaning that the terminal device predicts a beam failure event.

[0222] In some embodiments, the network device 600 is further configured to send, to the terminal device, second configuration information including a sixth parameter, where the sixth parameter is used to indicate a value of a first timer, and during running of the first timer, the terminal device is not allowed to trigger reporting of the first information.

[0223] In some embodiments, the network device 600 is further configured to receive capability information sent by the terminal device, where the capability information is used to indicate whether the terminal device supports a beam failure event prediction function.

[0224] In optional embodiments, the receiving unit 610 can be a transceiver 730. The network device 600 can further include a processor 710 and a memory 720, as shown in FIG. 7.

[0225] FIG. 7 is a schematic structural diagram of an apparatus for communication according to an embodiment of the present application. The dashed line in FIG. 7 indicates that the unit or module is optional. The apparatus 700 can be used to implement the method described in the foregoing method embodiments. The apparatus 700 can be a chip, a terminal device, or a network device.

[0226] The apparatus 700 can include one or more processors 710. The processor 710 can support the apparatus 700 to implement the method described in the foregoing method embodiments. The processor 710 can be a general purpose processor or a dedicated processor. For example, the processor can be a central processing unit (CPU). Alternatively, the processor 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, discrete hardware components, etc. The general purpose processor can be a microprocessor or the processor can also be any conventional processor.

[0227] The apparatus 700 can further include one or more memories 720. The memory 720 stores a program, which can be executed by the processor 710, so that the processor 710 performs the method described in the foregoing method embodiments. The memory 720 can be independent of the processor 710 or integrated in the processor 710.

[0228] The apparatus 700 can further include a transceiver 730. The processor 710 can communicate with other devices or chips through the transceiver 730. For example, the processor 710 can perform data transceiving with other devices or chips through the transceiver 730.

[0229] The embodiment of the present application further provides a computer readable storage medium for storing a program. The computer readable storage medium can be applied to the terminal or the network device provided by the embodiment of the present application, and the program causes the computer to execute the method performed by the terminal or the network device in the various embodiments of the present application.

[0230] The embodiment of the present application further provides a computer program product. The computer program product includes a program. The computer program product can be applied to the terminal or the network device provided by the embodiment of the present application, and the program causes the computer to execute the method performed by the terminal or the network device in the various embodiments of the present application.

[0231] The embodiment of the present application further provides a computer program. The computer program can be applied to the terminal or the network device provided by the embodiment of the present application, and the computer program causes the computer to execute the method performed by the terminal or the network device in the various embodiments of the present application.

[0232] It should be understood that the terms "system" and "network" can be used interchangeably in the present application. In addition, the terms used in the present application are only used to explain the specific embodiments of the present application, and are not intended to limit the present application. The terms "first", "second", "third", and "fourth" and the like in the specification and claims of the present application and the drawings are used to distinguish different objects, and are not used to describe a particular order. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0233] In the embodiments of the present application, the "indication" mentioned can be direct indication, or indirect indication, or can be an indication with an associated relationship. For example, A indicates B, which can mean that B can be obtained by A; or A indirectly indicates B, for example, A indicates C, and B can be obtained by C; or A and B have an associated relationship.

[0234] In the embodiments of the present application, "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should also be understood that the determination of B according to A does not mean that B is determined only according to A, but B can also be determined according to A and / or other information.

[0235] In the embodiments of the present application, the term "corresponding" can represent a direct or indirect corresponding relationship between the two, can also represent an associated relationship between the two, and can also indicate a relationship with the indicated, configured, and the like.

[0236] In the embodiments of the present application, "predefined" or "preconfigured" can be realized by pre-saving corresponding codes, tables or other ways that can be used to indicate related information in devices (for example, including terminal devices and network devices), and the specific implementation manner is not limited in the present application. For example, the predefinition can refer to the definition in the protocol.

[0237] In the embodiments of the present application, the "protocol" can refer to a standard protocol in the communication field, for example, can include the LTE protocol, the NR protocol and the related protocol applied to the future communication system, and the present application is not limited to this.

[0238] In the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can represent the following three cases: A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in this paper generally represents an "or" relationship between the front and rear associated objects.

[0239] In the embodiments of the present application, the "including" can mean direct including or indirect including. Alternatively, the "including" mentioned in the embodiments of the present application can be replaced by "indicating" or "used for determining". For example, A includes B can be replaced by A indicating B or A used for determining B.

[0240] In various embodiments of the present application, the size of the serial number of the above processes does not mean the order of execution, and the execution order of the processes should be determined according to its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0241] In several embodiments provided by the present application, it should be understood that the disclosed system, device and method can be implemented by other ways. For example, the device embodiments described above are only schematic, for example, the division of the units is only a logical function division, and there can be another division way in actual implementation, for example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interfaces, devices or units, and can be electrical, mechanical or other forms.

[0242] The units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, i.e., may be located in one place, or may be distributed on multiple network units. Part or all of the units can be selected to achieve the purpose of the embodiment of the present application according to actual needs.

[0243] In addition, each functional unit in each embodiment of the present application can be integrated in one processing unit, or each unit can be physically present alone, or two or more units can be integrated in one unit.

[0244] In the above embodiments, all or part can be realized by software, hardware, firmware or any combination thereof. When realized by software, all or part can be realized in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network or other programmable devices. The computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another, for example, the computer instructions can be transferred from one website, computer, server or data center to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) mode. The computer readable storage medium can be any available medium readable by a computer or a data storage device such as a server, data center, etc. containing one or more available media. The available medium can be a magnetic medium (for example, floppy disk, hard disk, magnetic tape), optical medium (for example, digital video disc (DVD)) or semiconductor medium (for example, solid state disk (SSD)) and the like.

[0245] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any skilled person in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A method of wireless communication, the method comprising: Comprising: If the first event is met, the terminal device triggers the behavior of sending first information to the network device; Wherein, the first information is associated with the beam failure event predicted by the terminal device.

2. The method of claim 1, wherein, The first event includes: Arriving at t0 moment, the terminal device predicts that the beam failure event may occur after the first time length at t0 moment; Or, Arriving at t1 moment, wherein the time interval between the t1 moment and the t0 moment is the second time length; Or, Arriving at t2 moment, wherein the time interval between t3 moment and t2 moment is the third time length, and the time interval between t3 moment and t0 moment is the first time length; Or, Arriving at any time between the t0 moment and the t3 moment; Or, Arriving at t4 moment, wherein the terminal device predicts that the beam failure event may occur after the first time length at the t0 moment, and the beam measurement result corresponding to the best beam in the first beam set measured by the terminal device at the t4 moment is less than or equal to the first threshold value, the t4 moment is equal to the t0 moment or the t4 moment is the future time of the t0 moment, and the first beam set is the beam set used by the terminal device to perform beam failure monitoring task; Or, Arriving at t5 moment, wherein the terminal device predicts that the beam failure event may occur after the first time length at the t0 moment, and the cell level measurement result of the serving cell of the terminal device at the t5 moment is less than or equal to the second threshold value, and the t5 moment is equal to the t0 moment or the t5 moment is the future time of the t0 moment.

3. The method according to claim 1 or 2, characterized in that, The method includes: The terminal device receives the first configuration information sent by the network device, and the first configuration information is related to the first event; Wherein, the first configuration information includes: First parameter, the first parameter is used to indicate the value of the first time length; Or, First parameter and second parameter, wherein, the first parameter is used to indicate the value of the first time length, and the second parameter is used to indicate the value of the second time length; Or, First parameter and third parameter, wherein, the first parameter is used to indicate the value of the first time length, and the third parameter is used to indicate the value of the third time length; Or, First parameter and fourth parameter, wherein, the first parameter is used to indicate the value of the first time length, and the fourth parameter is used to indicate the value of the first threshold value; First parameter and fifth parameter, wherein, the first parameter is used to indicate the value of the first time length, and the fifth parameter is used to indicate the value of the second threshold value.

4. The method according to any one of claims 1-3, characterized in that, The first information includes first indication information and / or second information, wherein the first indication information is used to indicate that the terminal device predicts the beam failure event, and the second information is used to indicate the detailed information related to the beam failure event predicted by the terminal device.

5. The method of claim 4, wherein, The second information includes one or more of the following: The beam identifier corresponding to the best beam in the actually measured second beam set; a latest beam measurement result of a best beam in the second beam set actually measured; a predicted beam index of a best beam in the second beam set at the t3 moment; a predicted beam measurement result of the best beam in the second beam set at the t3 moment; a predicted beam index of a best beam in the current serving cell at the t3 moment; a predicted beam measurement result of the best beam in the current serving cell at the t3 moment; a predicted beam index of a best beam in the current serving cell at the t3 moment; a predicted beam measurement result of the best beam in the current serving cell at the t3 moment; third information used for indicating a length of a time interval between the t3 moment and a moment of reporting the first information. The second beam set is a beam set used by the terminal device for performing a beam failure monitoring task.

6. The method according to claim 4 or 5, characterized in that, The second information is carried by one or more of the following: uplink control information (UCI), a medium access control layer control element (MAC CE), and a radio resource control (RRC) message.

7. The method according to any one of claims 4-6, characterized in that, In the case where the second information is carried by the MAC CE, the first information further includes MAC subheader information.

8. The method of claim 7, wherein, A value of a logical channel indication field included in the MAC subheader information is a first value, and an associated meaning of the first value is that the terminal device has predicted a beam failure event.

9. The method according to any one of claims 1-8, characterized in that, During running of the first timer, the terminal device is not allowed to trigger reporting of the first information.

10. The method of claim 9, wherein, The starting condition of the first timer includes that the terminal device triggers reporting of the first information.

11. The method according to claim 9 or 10, characterized in that, The stopping condition of the first timer includes that a beam failure monitoring configuration of the terminal device is updated or a value of the first timer is updated.

12. The method according to any one of claims 9-11, characterized in that, The method further includes: The terminal device receives second configuration information sent by the network device, and the second configuration information includes a sixth parameter used for indicating the value of the first timer.

13. The method according to any one of claims 1-12, characterized in that, The method further includes: The terminal device sends capability information to the network device, and the capability information is used for indicating whether the terminal device supports a beam failure event prediction function.

14. A method of wireless communication, the method comprising: The method further includes: The network device receives first information sent by the terminal device. The first information is associated with a predicted beam failure event of the terminal device, and sending of the first information is related to a first event.

15. The method of claim 14, wherein, The first event includes: arriving at a t0 moment, the terminal device predicts that a beam failure event is likely to occur after a first time length at the t0 moment; or arriving at a t1 moment, wherein a time interval between the t1 moment and the t0 moment is a second time length; or arriving at a t2 moment, wherein a time interval between a t3 moment and the t2 moment is a third time length, and a time interval between the t3 moment and the t0 moment is the first time length; or arriving at any moment between the t0 moment and the t3 moment; or arriving at a t4 moment, wherein the terminal device predicts that a beam failure event is likely to occur after a first time length at the t0 moment, and a beam measurement result corresponding to a best beam in a first beam set measured by the terminal device at the t4 moment is less than or equal to a first threshold value, the t4 moment is equal to the t0 moment or the t4 moment is a future moment of the t0 moment, and the first beam set is a beam set used by the terminal device to perform a beam failure monitoring task; or arriving at a t5 moment, wherein the terminal device predicts that a beam failure event is likely to occur after a first time length at the t0 moment, and a cell level measurement result of a serving cell of the terminal device at the t5 moment is less than or equal to a second threshold value, the t5 moment is equal to the t0 moment or the t5 moment is a future moment of the t0 moment.

16. The method according to claim 14 or 15, characterized in that, The method comprises: The network device sends first configuration information to the terminal device, and the first configuration information is related to the first event; The first configuration information comprises: a first parameter, the first parameter being used to indicate a value of the first time length; or a first parameter and a second parameter, the first parameter being used to indicate a value of the first time length, and the second parameter being used to indicate a value of the second time length; or a first parameter and a third parameter, the first parameter being used to indicate a value of the first time length, and the third parameter being used to indicate a value of the third time length; or a first parameter and a fourth parameter, the first parameter being used to indicate a value of the first time length, and the fourth parameter being used to indicate a value of the first threshold value; a first parameter and a fifth parameter, the first parameter being used to indicate a value of the first time length, and the fifth parameter being used to indicate a value of the second threshold value.

17. The method according to any one of claims 14-16, characterized by, The first information comprises first indication information and / or second information, the first indication information being used to indicate that the terminal device predicts a beam failure event, and the second information being used to indicate detailed information related to the beam failure event predicted by the terminal device.

18. The method of claim 17, wherein, The second information comprises one or more of the following: a beam identifier corresponding to a best beam in a second beam set actually measured; a latest beam measurement result corresponding to the best beam in the second beam set actually measured; a beam identifier corresponding to a best beam in the second beam set predicted at the t3 moment; a beam measurement result corresponding to the best beam in the second beam set predicted at the t3 moment; a beam identifier of a best beam of a current serving cell actually measured; a latest beam measurement result of the best beam of the current serving cell actually measured; a beam identifier of the best beam of the current serving cell predicted at the t3 moment; a beam measurement result of the best beam of the current serving cell predicted at the t3 moment; third information, the third information being used to indicate a length of a time interval between the t3 moment and a moment of reporting the first information; The second beam set is a beam set used by the terminal device to perform a beam failure monitoring task.

19. The method of claim 17 or 18, wherein, The second information is carried by one or more of the following: uplink control information (UCI), a medium access control layer control element (MAC CE), and a radio resource control (RRC) message.

20. The method of any one of claims 17-19, wherein, In the case where the second information is carried by the MAC CE, the first information further includes MAC subheader information.

21. The method of claim 20, wherein, The MAC subheader information includes a logical channel indication field with a first value, and the first value is associated with a meaning that the terminal device predicts a beam failure event.

22. The method of any one of claims 14-21, wherein, The method includes: The network device sends second configuration information to the terminal device, and the second configuration information includes a sixth parameter used to indicate a value of a first timer, wherein the terminal device is not allowed to trigger reporting of the first information during running of the first timer.

23. The method of any one of claims 14-22, wherein, The method further includes: The network device receives capability information sent by the terminal device, and the capability information is used to indicate whether the terminal device supports a beam failure event prediction function.

24. A terminal device, comprising: The method includes: A triggering unit is configured to trigger sending of first information to a network device if a first event is met. The first information is associated with a beam failure event predicted by the terminal device.

25. The terminal device of claim 24, wherein, The first event includes: A t0 moment is reached, the terminal device predicts that a beam failure event may occur after a first time length at the t0 moment; or A t1 moment is reached, a time interval between the t1 moment and the t0 moment is a second time length; or A t2 moment is reached, a time interval between a t3 moment and the t2 moment is a third time length, and a time interval between the t3 moment and the t0 moment is the first time length; or Any moment between the t0 moment and the t3 moment is reached; or A t4 moment is reached, the terminal device predicts that a beam failure event may occur after a first time length at the t0 moment, and a beam measurement result of a best beam in a first beam set used by the terminal device to perform a beam failure monitoring task is less than or equal to a first threshold at the t4 moment, the t4 moment is equal to the t0 moment or is a future moment of the t0 moment; or A t5 moment is reached, the terminal device predicts that a beam failure event may occur after a first time length at the t0 moment, and a cell-level measurement result of a serving cell of the terminal device is less than or equal to a second threshold at the t5 moment, the t5 moment is equal to the t0 moment or is a future moment of the t0 moment.

26. The terminal device according to claim 24 or 25, characterized by The terminal device is further configured to: Receive first configuration information sent by the network device, and the first configuration information is related to the first event. The first configuration information includes: A first parameter used to indicate a value of the first time length; or A second parameter used to indicate a value of the second time length; or A third parameter used to indicate a value of the third time length. the first parameter is used to indicate a value of the first time length, and the second parameter is used to indicate a value of the second time length; or the first parameter is used to indicate a value of the first time length, and the third parameter is used to indicate a value of the third time length; or the first parameter is used to indicate a value of the first time length, and the fourth parameter is used to indicate a value of the first threshold. the first parameter is used to indicate a value of the first time length, and the fifth parameter is used to indicate a value of the second threshold.

27. The terminal device of any one of claims 24-26, wherein, The first information includes first indication information and / or second information, wherein the first indication information is used to indicate that the terminal device predicts a beam failure event, and the second information is used to indicate detailed information related to the beam failure event predicted by the terminal device.

28. The terminal device of claim 27, wherein, The second information includes one or more of the following: a beam identifier corresponding to a beam with the best measurement result in the actually measured second beam set; a latest beam measurement result corresponding to a beam with the best measurement result in the actually measured second beam set; a predicted beam identifier corresponding to a beam with the best measurement result in the second beam set at the t3 moment; a predicted beam measurement result corresponding to a beam with the best measurement result in the second beam set at the t3 moment; a beam identifier of a best beam of a current serving cell actually measured; a latest beam measurement result of a best beam of a current serving cell actually measured; a predicted beam identifier of a best beam of a current serving cell at the t3 moment; a predicted beam measurement result of a best beam of a current serving cell at the t3 moment; third information used to indicate a length of a time interval between the t3 moment and a moment of reporting the first information. The second beam set is a beam set used by the terminal device to perform a beam failure monitoring task.

29. The terminal device according to claim 27 or 28, characterized by The second information is carried by one or more of the following: uplink control information (UCI), a medium access control layer control element (MAC CE), and a radio resource control (RRC) message.

30. The terminal device of any one of claims 27-29, wherein, In the case where the second information is carried by the MAC CE, the first information further includes MAC subheader information.

31. The terminal device of claim 30, wherein, A value of a logical channel indication field included in the MAC subheader information is a first value, and a meaning associated with the first value is that the terminal device predicts a beam failure event.

32. The terminal device of any one of claims 24-31, wherein, During running of a first timer, the terminal device is not allowed to trigger reporting of the first information.

33. The terminal device of claim 32, wherein, A starting condition of the first timer includes that the terminal device triggers reporting of the first information.

34. The terminal device of claim 32 or 33, wherein, A stopping condition of the first timer includes that a beam failure monitoring configuration of the terminal device is updated or a value of the first timer is updated.

35. The terminal device of any one of claims 32-34, wherein, The terminal device is further configured to: receive second configuration information sent by the network device, wherein the second configuration information includes a sixth parameter used to indicate a value of the first timer.

36. The terminal device of any one of claims 24-35, wherein, The terminal device is further configured to: Send the capability information to the network device, the capability information is used to indicate whether the terminal device supports the beam failure event prediction function.

37. A network device, comprising: Comprise: The receiving unit is used for receiving the first information sent by the terminal device; Wherein, the first information is associated with the beam failure event predicted by the terminal device, and the sending of the first information is related to the first event.

38. The network device of claim 37, wherein, The first event includes: Arrive at t0 moment, the t0 moment the terminal device predicts that the beam failure event may occur after the first duration; Or, Arrive at t1 moment, wherein the time interval between the t1 moment and the t0 moment is the second duration; Or, Arrive at t2 moment, wherein the time interval between t3 moment and the t2 moment is the third duration, and the time interval between the t3 moment and the t0 moment is the first duration; Or, Arrive at any time between the t0 moment and the t3 moment; Or, Arrive at t4 moment, wherein the terminal device predicts that the beam failure event may occur after the first duration at the t0 moment, and the beam measurement result corresponding to the best beam in the first beam set measured by the terminal device at the t4 moment is less than or equal to the first threshold value, the t4 moment is equal to the t0 moment or the t4 moment is the future time of the t0 moment, and the first beam set is the beam set used by the terminal device to perform beam failure monitoring task; Or, Arrive at t5 moment, wherein the terminal device predicts that the beam failure event may occur after the first duration at the t0 moment, and the cell level measurement result of the serving cell of the terminal device at the t5 moment is less than or equal to the second threshold value, and the t5 moment is equal to the t0 moment or the t5 moment is the future time of the t0 moment.

39. The network device of claim 37 or 38, wherein, The network device is also used for: Send the first configuration information to the terminal device, the first configuration information is related to the first event; Wherein, the first configuration information includes: The first parameter is used to indicate the value of the first duration; Or, The first parameter and the second parameter, wherein the first parameter is used to indicate the value of the first duration, and the second parameter is used to indicate the value of the second duration; Or, The first parameter and the third parameter, wherein the first parameter is used to indicate the value of the first duration, and the third parameter is used to indicate the value of the third duration; Or, The first parameter and the fourth parameter, wherein the first parameter is used to indicate the value of the first duration, and the fourth parameter is used to indicate the value of the first threshold value; The first parameter and the fifth parameter, wherein the first parameter is used to indicate the value of the first duration, and the fifth parameter is used to indicate the value of the second threshold value.

40. The network device of any of claims 37-39, wherein, The first information includes first indication information and / or second information, wherein the first indication information is used to indicate that the terminal device predicts the beam failure event, and the second information is used to indicate the details of the beam failure event predicted by the terminal device.

41. The network device of claim 40, wherein, The second information includes one or more of the following: a beam identity of a best beam in the second beam set actually measured; a latest beam measurement result of the best beam in the second beam set actually measured; a beam identity of a best beam in the second beam set at the t3 moment predicted; a beam measurement result of the best beam in the second beam set at the t3 moment predicted; a beam identity of a best beam of a current serving cell actually measured; a latest beam measurement result of the best beam of the current serving cell actually measured; a beam identity of the best beam of the current serving cell at the t3 moment predicted; a beam measurement result of the best beam of the current serving cell at the t3 moment predicted; third information used for indicating a length of a time interval between the t3 moment and a moment of reporting the first information. The second beam set is a set of beams used by the terminal device to perform a beam failure monitoring task.

42. The network device of claim 40 or 41, wherein, The second information is carried by one or more of the following: uplink control information (UCI), a medium access control layer control element (MAC CE), and a radio resource control (RRC) message.

43. The network device of any of claims 40-42, wherein, In the case where the second information is carried by the MAC CE, the first information further includes MAC subheader information.

44. The network device of claim 43, wherein, A logical channel indication field included in the MAC subheader information has a first value, and the first value is associated with a meaning that the terminal device predicts a beam failure event.

45. The network device of any of claims 37-44, wherein, The network device is configured to: send, to the terminal device, second configuration information including a sixth parameter used for indicating a value of a first timer, wherein the terminal device is not allowed to trigger reporting of the first information during running of the first timer.

46. The network device of any of claims 37-45, wherein, The network device is further configured to: receive, from the terminal device, capability information used for indicating whether the terminal device supports a beam failure event prediction function.

47. A terminal device, comprising: A terminal device includes a transceiver, a memory, and a processor. The memory is configured to store a program, and the processor is configured to invoke the program in the memory and control the transceiver to receive or send signals, so that the terminal device performs the method according to any one of claims 1-13.

48. A network device, comprising: A network device includes a transceiver, a memory, and a processor. The memory is configured to store a program, and the processor is configured to invoke the program in the memory and control the transceiver to receive or send signals, so that the network device performs the method according to any one of claims 14-23.

49. An apparatus comprising: An apparatus includes a processor configured to invoke a program from a memory, so that the apparatus performs the method according to any one of claims 1-23.

50. A chip, comprising: An apparatus includes a processor configured to invoke a program from a memory, so that a device in which the apparatus is installed performs the method according to any one of claims 1-23.

51. A computer readable storage medium, characterized in that, A computer program product has a program stored thereon, and the program causes a computer to perform the method according to any one of claims 1-23.

52. A computer program product, characterised in that, A computer program product has a program stored thereon, and the program causes a computer to perform the method according to any one of claims 1-23.

53. A computer program, characterized in that, The computer program causes a computer to perform the method of any one of claims 1-23.

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