Communication methods, devices, apparatuses, chips, storage media and software products

Abstract

Embodiments of this disclosure provide a communication method, apparatus, system, storage medium, program product, and chip. According to embodiments of this disclosure, first link information is obtained; based on the first link information, processing associated with Radio Resource Management (RRM) prediction and / or Radio Link Failure (RLF) is performed. In this manner, embodiments of this disclosure can reduce signaling overhead in the communication system and improve the overall efficiency of the communication system.

Description

Technical Field

[0001] The embodiments of this disclosure primarily relate to the field of communications, and more specifically to a communication method, communication device, communication apparatus, chip, computer-readable storage medium, and computer program product. Background Technology

[0002] In wireless communication systems, to achieve optimal system performance and capacity, it is necessary to allocate and manage limited wireless resources. Radio Resource Management (RRM) is a technology for automatically managing and optimizing the wireless environment in wireless communication systems. It aims to ensure Quality of Service (QoS), improve spectrum efficiency, prevent network congestion, and provide the best user experience by dynamically allocating channels, power, and other resources within limited spectrum resources. Therefore, continuous optimization of RRM-related technologies has become one of the directions for the ongoing evolution of wireless communication systems. Summary of the Invention

[0003] Embodiments of this disclosure provide a communication method, communication device, communication apparatus, chip, computer-readable storage medium, and computer program product. According to embodiments of this disclosure, signaling overhead in communication systems can be reduced, and overall communication system efficiency can be improved.

[0004] In a first aspect of this disclosure, a communication method is provided. This method can be applied to a terminal device, which in this disclosure can refer to a terminal equipment, a component within the terminal equipment (e.g., a processor, chip, module, communication module, circuit or chip responsible for communication functions), or a logic module or software capable of implementing all or part of the terminal equipment's functions. The method is described below using a terminal equipment as an example, comprising: obtaining first link information; and, based on the first link information, performing processing associated with Radio Resource Management (RRM) prediction and / or Radio Link Failure (RLF). In this manner, embodiments of this disclosure, by determining the processing associated with RRM prediction and / or RLF based on link information, can consider RRM-related situations and determine whether to trigger measurement reporting and / or stop RRM-related processing before triggering measurement result reporting, thereby reducing signaling overhead on the terminal side and avoiding the network side sending invalid handover commands, thus reducing signaling overhead on the network side and optimizing the overall efficiency of the RRM process and communication system.

[0005] In some implementations of the first aspect of this disclosure, the method further includes one or more of the following: obtaining first configuration information, the first configuration information being used to indicate the reporting type of RRM prediction, the reporting type including event-triggered reporting or periodically triggered reporting; obtaining second configuration information, the second configuration information being used to indicate the number of times RRM prediction is reported, the number including one or more times; obtaining third configuration information, the third configuration information instructing the communication device to perform radio resource management (RRM) prediction and / or radio link failure (RLF) prediction.

[0006] In some implementations of the first aspect of this disclosure, the method further includes: triggering a first report based on the event-triggered reporting, wherein the first report is determined based on the existence of a first event that meets certain conditions in a first time unit, wherein the first report is associated with the first event; or triggering a second report based on the periodically triggered reporting.

[0007] In some implementations of the first aspect of this disclosure, the method further includes: receiving a switching command if a first event satisfying the conditions exists in the first time unit; or receiving a switching command if the second report includes information related to a second event satisfying the conditions.

[0008] In some implementations of the first aspect of this disclosure, the processing includes one or more of the following: a first processing for stopping the RRM measurement inference; a second processing for stopping the transmission of a first report and / or a second report; a third processing for transmitting the first report and / or the second report; a fourth processing for transmitting the first report and / or the second report and / or a first indication information, wherein the first indication information includes a second indication information and a third indication information, wherein the second indication information indicates an immediate handover and the third indication information indicates an impending radio link failure; a fifth processing for performing processing based on a first timer timeout; and a sixth processing for performing a Radio Resource Control (RRC) reconstruction procedure.

[0009] In some implementations of the first aspect of this disclosure, the first link information is obtained based on radio link monitoring (RLM), the first link information includes a first number of consecutive first link indication information, wherein the first link indication information indicates a communication link out of sync state, and the method further includes: if the first number is less than a first threshold, the communication link is in a first state; or if the first number is greater than or equal to the first threshold, the first timer is started.

[0010] In some implementations of the first aspect of this disclosure, the method further includes: during the operation of the first timer, obtaining second link information, wherein the second link information includes a second consecutive number of second link indication information, the second link indication information indicating the synchronization status of the communication link.

[0011] In some implementations of the first aspect of this disclosure, the method further includes: if the second quantity is greater than or equal to a second threshold, the communication link is in a second state, and the first timer is stopped; or if the first timer times out, the communication link is in a third state.

[0012] In some first implementations of the first aspect of this disclosure, the communication device is configured to perform the event-triggered reporting once, and the communication device is configured to perform RRM prediction but not RLF prediction. In some second implementations of the first aspect of this disclosure, the communication device is configured to perform the event-triggered reporting multiple times, and the communication device is configured to perform RRM prediction but not RLF prediction.

[0013] In some first or second implementations of the first aspect of this disclosure, the method further includes: if the communication link is in the first state, performing the first processing and / or the second processing.

[0014] In some first or second implementations of the first aspect of this disclosure, the first timer is started before receiving a switching command, and the method further includes: if the communication link reaches the second state before receiving the switching command, performing the third process; if the communication link reaches the third state before receiving the switching command, performing one or more of the first process, the second process, the fourth process, the fifth process, and the sixth process.

[0015] In some second implementations of the first aspect of this disclosure, the first timer is started before a handover command is received, and the method further includes performing one or more of the following: a seventh process for stopping the transmission of the first report until the first timer is started; an eighth process for sending one or more first reports before the first timer is started, the first reports indicating first link information and / or the possibility of future wireless link failure; and a ninth process for sending one or more first reports indicating that the communication link has reached the second state if the communication link reaches the second state before the handover command is received.

[0016] In some first or second implementations of the first aspect of this disclosure, the first timer is started when a switching command is received or after a switching command is received, and the method further includes: performing the third processing.

[0017] In some third implementations of the first aspect of this disclosure, the communication device is configured to perform an event-triggered report once, and the communication device is configured to perform RRM prediction and RLF prediction.

[0018] In some fourth implementations of the first aspect of this disclosure, the communication device is configured to perform multiple event-triggered reportings, and the communication device is configured to perform RRM prediction and RLF prediction.

[0019] In some third or fourth implementations of the first aspect of this disclosure, the method further includes: obtaining first RLF prediction information, wherein the first RLF prediction information includes the first link information; and / or obtaining second RLF prediction information, wherein the second RLF prediction information includes predicted RLF events.

[0020] In some third or fourth implementations of the first aspect of this disclosure, the first timer is started before receiving the switching command, and the method further includes: if the communication link reaches the second state before receiving the switching command, performing the third processing; if the communication link reaches the third state before receiving the switching command, performing one or more of the first processing, the second processing, the fourth processing, the fifth processing, and the sixth processing.

[0021] In some third or fourth implementations of the first aspect of this disclosure, the first timer is started when or after receiving a switching command, and the method further includes: performing the third processing.

[0022] In some third or fourth implementations of the first aspect of this disclosure, the method further includes: performing the third processing if the RLF event does not exist.

[0023] In some third or fourth implementations of the first aspect of this disclosure, if the RLF event occurs before receiving the handover command, the method further includes: performing one or more of the first process, the second process, the fourth process, the fifth process, and the sixth process.

[0024] In some third or fourth implementations of the first aspect of this disclosure, if the RLF event occurs at the time of receiving the handover command or after receiving the handover command, the method further includes: performing the third processing.

[0025] In some fourth implementations of the first aspect of this disclosure, the first timer is started before a handover command is received, and the method further includes performing one or more of the following: a seventh process for stopping the transmission of the first report until the first timer is started; an eighth process for sending one or more first reports before the first timer is started, the first reports indicating first link information and / or the possibility of future wireless link failure; and a ninth process for sending one or more first reports indicating that the communication link has reached the second state if the communication link reaches the second state before the handover command is received.

[0026] In some third or fourth implementations of the first aspect of this disclosure, the method further includes: if the communication link is in the first state, performing the first processing and / or the second processing.

[0027] In some fifth implementations of the first aspect of this disclosure, the communication device is configured to perform the reporting for the periodic triggering, and the communication device is configured to perform RRM prediction but not RLF prediction.

[0028] In some fifth implementations of the first aspect of this disclosure, the method further includes: if the communication link is in the first state, performing the first processing and / or the second processing.

[0029] In some fifth implementations of the first aspect of this disclosure, the first timer is started before receiving a switching command, and the method further includes: if the communication link reaches the second state before receiving the switching command, performing the third process; if the communication link reaches the third state before receiving the switching command, performing one or more of the first process, the second process, the fourth process, the fifth process, and the sixth process.

[0030] In some fifth implementations of the first aspect of this disclosure, the first timer is started before a handover command is received, and the method further includes performing one or more of the following: a seventh process for stopping the transmission of the second report until the first timer is started; an eighth process for sending one or more second reports before the first timer is started, the second reports indicating first link information and / or the possibility of future wireless link failure; and a ninth process for sending one or more second reports indicating that the communication link has reached the second state if the communication link reaches the second state before the handover command is received.

[0031] In some fifth implementations of the first aspect of this disclosure, the first timer is started when or after a switching command is received, and the method further includes performing the third processing.

[0032] In some sixth implementations of the first aspect of this disclosure, the communication device is configured to perform the periodic triggering of the reporting, and the communication device is configured to perform RRM prediction and RLF prediction.

[0033] In some sixth implementations of the first aspect of this disclosure, the method further includes: obtaining first RLF prediction information, wherein the first RLF prediction information includes the first link information; and / or obtaining second RLF prediction information, wherein the second RLF prediction information includes predicted RLF events.

[0034] In some sixth implementations of the first aspect of this disclosure, the method further includes: if the communication link is in the first state, performing the first processing and / or the second processing.

[0035] In some sixth implementations of the first aspect of this disclosure, the first timer is started before receiving a switching command, and the method further includes: if the communication link reaches the second state before receiving the switching command, performing the third process; if the communication link reaches the third state before receiving the switching command, performing one or more of the first process, the second process, the fourth process, the fifth process, and the sixth process.

[0036] In some sixth implementations of the first aspect of this disclosure, the first timer is started when or after a switching command is received, and the method further includes performing the third processing.

[0037] In some sixth implementations of the first aspect of this disclosure, the method further includes: performing the third processing if the RLF event does not exist.

[0038] In some sixth implementations of the first aspect of this disclosure, if the RLF event occurs before receiving the handover command, the method further includes: performing one or more of the first process, the second process, the fourth process, the fifth process, and the sixth process.

[0039] In some sixth implementations of the first aspect of this disclosure, if the RLF event occurs at the time of receiving the handover command or after receiving the handover command, the method further includes performing the third processing.

[0040] In some sixth implementations of the first aspect of this disclosure, the first timer starts before receiving a handover command, and the method further includes: performing one or more of the following: a seventh process for stopping the transmission of the second report until the first timer starts; an eighth process for sending one or more second reports before the first timer starts, the second reports indicating first link information and / or the possibility of future wireless link failure; and a ninth process for sending one or more second reports indicating that the communication link has reached the second state if the communication link reaches the second state before receiving the handover command. Thus, embodiments of this disclosure are provided.

[0041] In a second aspect of this disclosure, a communication method is provided. This method can be applied to a network device, where "network device" can refer to a network equipment, a component within the network equipment (e.g., a processor, chip, module, communication module, circuitry or chip responsible for communication functions), or a logic module or software capable of implementing all or part of the functions of the network equipment. The following description uses a network equipment as an example, where the method involves receiving a first report triggered by an event-based reporting mechanism; or receiving a second report triggered by a periodic reporting mechanism, wherein the first report or the second report is determined by the communication device performing processing associated with Radio Resource Management (RRM) prediction and / or Radio Link Failure (RLF) based on first link information.

[0042] In some implementations of the second aspect of this disclosure, the method further includes one or more of the following: sending first configuration information, the first configuration information being used to indicate the reporting type of RRM prediction, the reporting type including event-triggered reporting or periodically triggered reporting; sending second configuration information, the second configuration information being used to indicate the number of times RRM prediction is reported, the number including one or more times; sending third configuration information, the third configuration information instructing the communication device to perform radio resource management (RRM) prediction and / or radio link failure (RLF) prediction.

[0043] In some implementations of the second aspect of this disclosure, the first report is determined based on the existence of a first event that satisfies a condition in a first time unit, wherein the first report is associated with the first event.

[0044] In some implementations of the second aspect of this disclosure, the method further includes: sending a switching command if a first event satisfying the conditions exists in the first time unit; or sending a switching command if the second report includes information related to a second event satisfying the conditions.

[0045] In some implementations of the second aspect of this disclosure, the processing performed by the communication device includes one or more of the following: a first processing for stopping the RRM measurement inference; a second processing for stopping the transmission of a first report and / or a second report; a third processing for transmitting the first report and / or the second report; a fourth processing for transmitting the first report and / or the second report and / or a first indication information, the first indication information including a second indication information and a third indication information, the second indication information indicating immediate handover, and the third indication information indicating an impending radio link failure; a fifth processing for performing processing based on a first timer timeout; and a sixth processing for performing a Radio Resource Control (RRC) reconstruction procedure.

[0046] In some implementations of the second aspect of this disclosure, the first link information is obtained based on radio link monitoring (RLM), and the first link information includes a first number of consecutive first link indications, wherein the first link indications indicate a communication link out of sync state, wherein: if the first number is less than a first threshold, the communication link is in a first state; or if the first number is greater than or equal to the first threshold, the first timer is started.

[0047] In some implementations of the second aspect of this disclosure, second link information is obtained during the operation of the first timer, wherein the second link information includes a second consecutive number of second link indication information, the second link indication information indicating the synchronization status of the communication link.

[0048] In some implementations of the second aspect of this disclosure, the communication link is in a second state and the first timer is stopped if the second quantity is greater than or equal to a second threshold; or the communication link is in a third state if the first timer times out.

[0049] In some first implementations of the second aspect of this disclosure, the communication device is configured to perform one event-triggered report, and the communication device is configured to perform RRM prediction but not RLF prediction.

[0050] In some second implementations of the second aspect of this disclosure, the communication device is configured to perform multiple event-triggered reports, and the communication device is configured to perform RRM prediction but not RLF prediction.

[0051] In some first or second implementations of the second aspect of this disclosure, wherein: if the communication link is in the first state, the first processing and / or the second processing is performed.

[0052] In some first or second implementations of the second aspect of this disclosure, the first timer is started before a switching command is received, wherein: if the communication link reaches the second state before the communication device receives the switching command, the third process is executed; if the communication link reaches the third state before the communication device receives the switching command, one or more of the first process, the second process, the fourth process, the fifth process, and the sixth process are executed.

[0053] In some second implementations of the second aspect of this disclosure, the first timer is started before a handover command is received, wherein the process performed by the communication device includes one or more of the following: a seventh process for stopping the transmission of the first report until the first timer is started; an eighth process for sending one or more first reports before the first timer is started, the first reports indicating first link information and / or the possibility of future wireless link failure; and a ninth process for sending one or more first reports indicating that the communication link has reached the second state if the communication link reaches the second state before the handover command is received.

[0054] In some first or second implementations of the second aspect of this disclosure, the first timer is started when the communication device receives a switching command or after receiving a switching command, wherein the third process is performed.

[0055] In some third implementations of the second aspect of this disclosure, the communication device is configured to perform an event-triggered report once, and the communication device is configured to perform RRM prediction and RLF prediction.

[0056] In some fourth implementations of the second aspect of this disclosure, the communication device is configured to perform multiple event-triggered reportings, and the communication device is configured to perform RRM prediction and RLF prediction.

[0057] In some third or fourth implementations of the second aspect of this disclosure, wherein: first RLF prediction information is obtained at the communication device, wherein the first RLF prediction information includes the first link information; and / or second RLF prediction information is obtained at the communication device, wherein the second RLF prediction information includes predicted RLF events.

[0058] In some third or fourth implementations of the second aspect of this disclosure, the first timer is started before the communication device receives a switching command, wherein: if the communication link reaches the second state before the communication device receives the switching command, the third process is executed; if the communication link reaches the third state before the communication device receives the switching command, one or more of the first process, the second process, the fourth process, the fifth process, and the sixth process are executed.

[0059] In some third or fourth implementations of the second aspect of this disclosure, the first timer is started when or after receiving a switching command, and the third process is executed.

[0060] In some third or fourth implementations of the second aspect of this disclosure, the third processing is performed if the RLF event does not exist.

[0061] In some third or fourth implementations of the second aspect of this disclosure, if the RLF event occurs before receiving the handover command, one or more of the first process, the second process, the fourth process, the fifth process, and the sixth process are executed.

[0062] In some third or fourth implementations of the second aspect of this disclosure, the third processing is performed if the RLF event occurs at the time of receiving the handover command or after receiving the handover command.

[0063] In some fourth implementations of the second aspect of this disclosure, the first timer is started before a handover command is received, wherein the process performed by the communication device includes one or more of the following: a seventh process for stopping the transmission of the first report until the first timer is started; an eighth process for sending one or more first reports before the first timer is started, the first reports indicating first link information and / or the possibility of future wireless link failure; and a ninth process for sending one or more first reports indicating that the communication link has reached the second state if the communication link reaches the second state before the handover command is received.

[0064] In some third or fourth implementations of the second aspect of this disclosure, wherein: if the communication link is in the first state, the first processing and / or the second processing is performed.

[0065] In some fifth implementations of the second aspect of this disclosure, the communication device is configured to perform the periodic triggering of the reporting, and the communication device is configured to perform RRM prediction but not RLF prediction.

[0066] In some fifth implementations of the second aspect of this disclosure, wherein: if the communication link is in the first state, the first process and / or the second process is performed.

[0067] In some fifth implementations of the second aspect of this disclosure, the first timer is started before a switching command is received, wherein: if the communication link reaches the second state before the communication device receives the switching command, the third process is executed; if the communication link reaches the third state before the communication device receives the switching command, one or more of the first process, the second process, the fourth process, the fifth process, and the sixth process are executed.

[0068] In some fifth implementations of the second aspect of this disclosure, the first timer is started before a handover command is received, wherein the process performed by the communication device includes one or more of the following: a seventh process for stopping the transmission of the second report until the first timer is started; an eighth process for sending one or more second reports before the first timer is started, the second reports indicating first link information and / or the possibility of future wireless link failure; and a ninth process for sending one or more second reports indicating that the communication link has reached the second state if the communication link reaches the second state before the handover command is received.

[0069] In some fifth implementations of the second aspect of this disclosure, the first timer is started when or after a switching command is received, and the third process is executed.

[0070] In some sixth implementations of the second aspect of this disclosure, the communication device is configured to perform the periodic triggering of the reporting, and the communication device is configured to perform RRM prediction and RLF prediction.

[0071] In some sixth implementations of the second aspect of this disclosure, wherein: first RLF prediction information is obtained at the communication device, wherein the first RLF prediction information includes the first link information; and / or second RLF prediction information is obtained at the communication device, wherein the second RLF prediction information includes predicted RLF events.

[0072] In some sixth implementations of the second aspect of this disclosure, wherein: if the communication link is in the first state, the first process and / or the second process is performed.

[0073] In some sixth implementations of the second aspect of this disclosure, the first timer is started before a switching command is received, wherein: if the communication link reaches the second state before the communication device receives the switching command, the third process is executed; if the communication link reaches the third state before the communication device receives the switching command, one or more of the first process, the second process, the fourth process, the fifth process, and the sixth process are executed.

[0074] In some sixth implementations of the second aspect of this disclosure, the first timer is started when or after a switching command is received, wherein the third process is performed.

[0075] In some sixth implementations of the second aspect of this disclosure, the third process is performed if the RLF event does not exist.

[0076] In some sixth implementations of the second aspect of this disclosure, if the RLF event occurs before receiving the handover command, one or more of the first process, the second process, the fourth process, the fifth process, and the sixth process are executed.

[0077] In some sixth implementations of the second aspect of this disclosure, the third process is performed if the RLF event occurs at the time of receiving the handover command or after receiving the handover command.

[0078] In some sixth implementations of the second aspect of this disclosure, the first timer is started before a handover command is received, wherein the process performed by the communication device includes one or more of the following: a seventh process for stopping the transmission of the second report until the first timer is started; an eighth process for sending one or more second reports before the first timer is started, the second reports indicating first link information and / or the possibility of future wireless link failure; and a ninth process for sending one or more second reports indicating that the communication link has reached the second state if the communication link reaches the second state before the handover command is received.

[0079] In a third aspect of this disclosure, a communication device is provided. The communication device includes units or modules for implementing the method according to any one of the first aspects, or includes units or modules for implementing the method according to any one of the second aspects.

[0080] In a fourth aspect of this disclosure, a communication device is provided. It includes: at least one memory for storing computer-executable instructions; and at least one processor configured to execute the computer-executable instructions to cause the communication device to perform the method according to any one of the second aspects.

[0081] In a fifth aspect of this disclosure, a communication system is provided. The communication system includes: a first means configured to perform the communication method according to any one of the first aspects; and a second means configured to perform the communication method according to any one of the second aspects.

[0082] In a sixth aspect of this disclosure, a computer-readable storage medium is provided having instructions stored thereon that, when executed by a communication device, cause the communication device to perform a communication method according to any one of the first or second aspects.

[0083] In a seventh aspect of this disclosure, a computer program product is provided, which stores instructions that, when executed, cause the communication method according to any one of the first or second aspects to be performed.

[0084] In an eighth aspect of this disclosure, a chip is provided, including processing circuitry configured to perform a communication method according to any one of the first or second aspects. Attached Figure Description

[0085] The above and other features, advantages, and aspects of the embodiments of this disclosure will become more apparent from the accompanying drawings and the following detailed description. In the drawings, the same or similar reference numerals denote the same or similar elements, wherein: Figure 1 A schematic diagram of an example communication system in which embodiments of this disclosure may be implemented is shown; Figure 2 A schematic flowchart illustrating a communication process according to some embodiments of the present disclosure is shown; Figure 3 A schematic signaling interaction diagram of a communication process according to some embodiments of the present disclosure is shown; Figure 4 A schematic communication scenario diagram illustrating a communication process according to some embodiments of the present disclosure is shown; Figure 5A A schematic diagram illustrating wireless link failure prediction according to some embodiments of the present disclosure is shown; Figure 5B A schematic diagram illustrating another wireless link failure prediction according to some embodiments of the present disclosure is shown; Figure 6 A schematic block diagram of a communication apparatus according to some embodiments of the present disclosure is shown; Figure 7 A schematic block diagram of another communication device according to some embodiments of the present disclosure is shown; and Figure 8 A schematic block diagram of an example device that can be used to implement embodiments of the present disclosure is shown. Detailed Implementation

[0086] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0087] The term "terminal device" as used in this document refers to any terminal device capable of wireless communication. As an example and not a limitation, a terminal device may also be referred to as a communication device, user equipment (UE), subscriber station (SS), portable subscriber station, mobile station (MS), or access terminal (AT). Terminal devices can include, but are not limited to, mobile phones, smartphones, Voice over Internet Protocol (VoIP) phones, wireless local loop phones, tablets, wearable terminal devices, personal digital assistants (PDAs), portable computers, desktop computers, image acquisition terminal devices such as digital cameras, gaming terminal devices, music storage and playback devices, in-vehicle wireless terminal devices, wireless endpoints, mobile stations, laptop embedded equipment (LEE), laptop mounted equipment (LME), universal serial bus (USB) dongles, smart devices, wireless customer premises equipment (CPE), Internet of Things (IoT) devices, watches or other wearable devices, head-mounted displays (HMDs), vehicles, drones, medical devices and applications (such as remote surgery), industrial devices and applications (such as robots and / or other wireless devices in industrial and / or automated processing chain contexts), consumer electronics devices, and devices operating on commercial and / or industrial wireless networks. "Terminal devices" can also be relay devices. In the following description, the terms “terminal equipment”, “communication equipment”, “terminal”, “user equipment” and “UE” are used interchangeably.

[0088] The term "network device" as used herein refers to a node in a communication network through which terminal devices access the network and receive services. Depending on the terminology and technology used, a network device can refer to a base station (BS) or access point (AP), such as a Node B (NodeB or NB), an evolved Node B (eNodeB or eNB), an NR NB (also known as a gNB), a remote radio unit (RRU), a remote radio head (RRH), a relay, a low-power node such as a pico or femtocell, and so on. In some embodiments, the BS or AP can be mobile, such as a satellite associated with a non-terrestrial network. In this document, "base station" can have the full range of its common meaning and includes at least a wireless communication station installed in a fixed location for communication as part of a wireless telephone system or radio system.

[0089] Network devices can be implemented as a central unit (CU) - distributed unit (DU) separation architecture. This CU-DU separation architecture can include one CU and one or more DUs. It should be understood that the CU can also be called gNB-CU, and the DU can also be called gNB-DU. The CU carries the radio resource control (RRC) layer, the service data adaptation protocol (SDAP) layer, and the packet data convergence protocol (PDCP). The DU carries the radio link control (RLC) layer, the medium access control (MAC) layer, and the physical (PHY) layer. The CU controls the one or more DUs. Of course, network devices can also be implemented as a non-separated architecture.

[0090] In this document, the term "communication device" refers to a device that enables the functionality of a terminal device or network device. A communication device can be the terminal device or network device itself, or it can be a component of the terminal device or network device, such as a chip. A chip can be, for example, a system-on-a-chip (SoC), a modem, etc.

[0091] As used herein, the term "channel" refers to any tangible or intangible transmission medium used to transmit data or data streams. The term "channel" may be synonymous or equivalent with "communication channel," "data communication channel," "transmission channel," "data transmission channel," "access channel," "data access channel," "link," "data link," "carrier," "radio frequency carrier," or any other similar term that indicates a path or medium through which data is transmitted.

[0092] The term "information element" refers to a structural element that contains one or more fields. The term "field" refers to the individual content of an information element, or the data element that contains that content. An information element may include one or more additional information elements.

[0093] The term "comprising" or similar expressions in this document mean open inclusion, i.e., "including but not limited to". The term "based on" should be understood as "at least partially based on". The term "one embodiment" or "this embodiment" should be understood as "at least one embodiment". The terms "first", "second", etc., can refer to different or the same objects. The term "and / or" means at least one of the two items associated with it. For example, "a and / or b" means a, b, or "a and b". The character " / " generally indicates that the related objects are in an "or" relationship. The term "at least one" means one or more items. The term "at least one of the following" or similar expressions mean any combination of these items, including any combination of single items or multiple items. For example, "at least one of a, b, c" can mean a, b, c, "a and b", "a and c", "b and c", or "a, b and c". Other terms will be defined in the description below.

[0094] In related communication technologies, Radio Resource Management (RRM) includes a Radio Resource Management (RRM) measurement process. Terminal devices can report measurement results within a predetermined time period to the network side, which can then send a handover command to the terminal device based on the reported measurement results. However, the inventors of this disclosure have noted that the wireless link quality of the terminal device may change before and after the terminal device reports the measurement results; for example, the wireless link quality may significantly degrade, potentially causing a wireless link failure before the terminal device actually receives the handover command. Therefore, from the network side's perspective, since the terminal device cannot send a measurement report or receive a handover command from the network side in the event of a wireless link failure, the network side cannot know whether a wireless link failure has occurred and may send an invalid handover command, resulting in wasted signaling overhead on the network side.

[0095] On the other hand, in related communication technologies, terminal devices continuously perform Radio Link Monitoring (RLM) to assess downlink radio link quality to ensure the reliability of the connection between the terminal and the network. However, the inventors of this disclosure have noted that under the existing mechanism, when the terminal detects a future radio link failure, it will still send measurement results and continue to perform RRM-related processing. Since the terminal is unlikely to receive the handover command sent from the network device, it will not execute the handover process, which leads to a waste of signaling overhead on the terminal side.

[0096] In view of this, the present disclosure provides a communication method. This communication method is executed by a communication device, such as a terminal device. For example, the communication device can obtain first link information and, based on the first link information, perform processing associated with Radio Resource Management (RRM) prediction and / or Radio Link Failure (RLF). According to embodiments of the present disclosure, by determining the processing associated with RRM prediction and / or RLF based on link information, RRM-related situations can be considered. Before triggering measurement result reporting, it can be determined whether to trigger measurement reporting and / or stop RRM-related processing, thereby reducing signaling overhead on the terminal side and avoiding the network side sending invalid handover commands, thus reducing signaling overhead on the network side and optimizing the overall efficiency of the RRM process and communication system.

[0097] The principles and implementation of this solution will be described in detail below with reference to the accompanying drawings.

[0098] Figure 1 A schematic diagram of an example communication system 100 that may be implemented according to embodiments of this disclosure is shown. Figure 1 As shown, the communication system 100 may include at least one terminal device ( Figure 1 The diagram shows terminal devices 110-1 and 110-2 (hereinafter referred to as terminal device 110 for convenience) and at least one network device ( Figure 1 The image shows network device 120 and satellite 130. Network device 120 and satellite 130 in this document are Radio Access Network (RAN) devices. Network device 120 and satellite 130 can provide one or more cells ( Figure 1Cell 121 is shown in the diagram, serving one or more terminal devices. Satellite 130 can employ a transparent forwarding mode, acquiring downlink data from access network device 120 and forwarding it to terminal device 110, as well as forwarding uplink data received from terminal device 110 to access network device 120, performing only filtering, frequency conversion, RF amplification, and RF transceiver on-board. Satellite 130 can also employ a regenerative forwarding mode, possessing all or part of the functions of a gNB, performing functions such as modulation, demodulation, and channel coding / decoding. When using regenerative forwarding mode, satellite 130 itself becomes a network device, such as an access network device.

[0099] Terminal device 110 can connect wirelessly to network device 120 and satellite 130. Terminal devices 110-1 and 110-2 can connect wirelessly. Network device 120 and satellite 130 can connect wirelessly.

[0100] like Figure 1 As shown, the communication system 100 may further include a core network (CN) 140. Terminal device 110 can communicate with one or more CN devices (not shown) in CN 140 via network device 120 and satellite 130. Network device 120 and satellite 130 can be connected to CN 140 wirelessly or via wired means. Network device 120 can be implemented as a physical device independent of CN devices, or it can be implemented as a physical device integrating some of the functions of CN devices.

[0101] In the following text, for the sake of brevity, network device 120 can be used in a broad sense, which may include satellite 130. In this case, satellite 130 adopts regenerative forwarding mode and has all or part of the functions of gNB.

[0102] It should be understood that Figure 1 The number and type of terminal devices or network devices described are merely examples and do not imply any limitation on this disclosure. Communication system 100 may involve any suitable number of terminal devices and / or network devices and / or cells suitable for implementing embodiments of this disclosure.

[0103] The communication in communication system 100 can conform to any suitable communication standard, including but not limited to wideband code division multiple access (WCDMA), code division multiple access (CDMA), long-term evolution (LTE), LTE evolution, LTE-Advanced (LTE-A), machine-type communication (MTC), etc. Furthermore, communication between terminal equipment and network equipment can be performed according to any suitable generation communication protocol, including but not limited to fourth-generation (4G), fifth-generation (5G), sixth-generation (6G) communication protocols, future wireless communication protocols, or other existing or future suitable communication protocols.

[0104] It should be noted that the embodiments of this disclosure can be applied to various suitable communication systems. Considering the rapid development of communication technologies, there will naturally be future types of communication technologies and systems, which this disclosure may be combined with. Communication system 100 is merely an example and does not imply that the scope of this disclosure is limited to a specific system.

[0105] Continue to refer to Figure 1 Terminal device 110 and network device 120 can communicate via a wireless communication channel. The channel from terminal device 110 to network device 120 can be referred to as the uplink channel. The channel from network device 120 to terminal device 110 can be referred to as the downlink channel.

[0106] Figure 2 A schematic flowchart illustrating a communication process according to some embodiments of the present disclosure is shown, wherein... Figure 2The method 200 shown can be implemented by, for example, terminal device 110. At 210, terminal device 110 obtains first link information. At 220, based on the first link information, terminal device 110 performs processing associated with Radio Resource Management (RRM) prediction and / or Radio Link Failure (RLF). In some embodiments of this disclosure, the Radio Resource Management prediction includes measurement inference-related, inference result triggering and reporting, eavesdropping-related, eavesdropping result triggering and reporting, data collection-related, and data collection result triggering and reporting. In some embodiments of this disclosure, the first link information can be obtained based on Radio Link Monitoring (RLM), such as including a specific number of out-of-synchronization indications, a specific number of synchronization indications, link status during T310 startup and operation, and may also include radio link failure-related information, and may also include L1 / L3 SINR / RSRP / RSRQ measurement or prediction results, etc. The first link information includes a continuous first number of first link indication information, wherein the first link indication information indicates a communication link out-of-synchronization state. In a further embodiment of this disclosure, if the first quantity is less than a first threshold, it can be determined that the communication link between the terminal device 110 and the network device 120 is in a first state; or, if the first quantity is greater than or equal to the first threshold, the first timer is started at the terminal device 110. In a further embodiment of this disclosure, during the operation of the first timer, the terminal device 110 obtains second link information, wherein the second link information includes a continuous second number of second link indication information, the second link indication information indicating the synchronization state of the communication link. In a further embodiment of this disclosure, if the second quantity is greater than or equal to a second threshold, it can be determined that the communication link is in a second state, and the first timer is stopped at the terminal device 110. If the first timer times out, it can be determined that the communication link is in a third state.

[0107] Figure 3A schematic signaling interaction diagram of a communication process according to some embodiments of the present disclosure is shown. At 310, terminal device 110 obtains first configuration information from network device 120, the first configuration information indicating the reporting type of RRM prediction results (e.g., inference results, monitoring results, data collection results, etc.), the reporting type including event-triggered reporting or periodically triggered reporting. At 320, terminal device 110 obtains second configuration information from network device 120, the second configuration information indicating the number of times the RRM prediction results are reported, the number including one or more. At 330, terminal device 110 obtains third configuration information from network device 120, the third configuration information instructing the communication device to perform Radio Resource Management (RRM) prediction and / or Radio Link Failure (RLF) prediction. It should be understood that the markings 310, 320, and 330 are for illustrative purposes only and do not indicate the order of signaling interaction between terminal device 110 and network device 120, nor do they indicate the signaling structure and configuration. It can be understood that the first configuration information, the second configuration information, and the third configuration information can be configured to terminal device 110 individually, partially or completely, simultaneously, at different times, or only a portion of them can be configured to terminal device 110.

[0108] In some embodiments of this disclosure, terminal device 110 triggers a first report based on the event-triggered reporting. The first report is determined based on the existence of a first event satisfying a condition within a first time unit. This first event may be a triggering or entering condition that satisfies the first event and / or continues for a second time unit, wherein the first report is associated with the first event. Accordingly, if a first event satisfying the condition exists within the first time unit, terminal device 110 receives a handover command from network device 120. In other embodiments of this disclosure, terminal device 110 triggers a second report based on the periodically triggered reporting. Accordingly, if the second report includes information related to a second event satisfying the condition, terminal device 110 receives a handover command from network device 120.

[0109] In some embodiments of this disclosure, the processing performed by terminal device 110 at 220 associated with Radio Resource Management (RRM) prediction and / or Radio Link Failure (RLF) may include one or more of the following: a first process for stopping the RRM measurement inference; a second process for stopping the transmission of a first report and / or a second report; a third process for transmitting the first report and / or the second report; and a fourth process for transmitting the first report and / or the second report and / or a first indication message, wherein the first indication message includes a second indication message and a third indication message, the second indication message indicating an immediate handover, and upon receiving the indication, network device 120... The invention does not limit the time when the network device 120 sends the handover command; it can send it immediately, at a specific time, or when the first event meets the entry condition. The third indication information is used to indicate that a wireless link failure is about to occur. After receiving the indication, the network device 120 may not send a handover command, saving network-side overhead. The fifth process is used to perform processing based on the timeout of the first timer. It should be noted that in the fifth process, the terminal device 110 will start the first timer based on the existing RLM evaluation mechanism. After the first timer expires, the corresponding timeout processing will be performed. The sixth process is used to perform the Radio Resource Control (RRC) reconstruction process.

[0110] In some embodiments of this disclosure, terminal device 110 is configured to perform an event-triggered report once, and terminal device 110 is configured to perform RRM prediction but not RLF prediction. If the communication link is in the first state, terminal device 110 performs the first process and / or the second process. Otherwise, if the first timer starts before receiving a handover command, and if the communication link reaches the second state before receiving the handover command, terminal device 110 performs the third process; or, if the communication link reaches the third state before receiving the handover command, terminal device 110 performs one or more of the first process, the second process, the fourth process, the fifth process, and the sixth process. On the other hand, if the first timer starts at the time of receiving the handover command or after receiving the handover command, terminal device 110 performs the third process.

[0111] In some embodiments of this disclosure, terminal device 110 is configured to perform multiple event-triggered reports, and terminal device 110 is configured to perform RRM prediction but not RLF prediction. If the communication link is in the first state, terminal device 110 performs the first process and / or the second process. Otherwise, if the first timer starts before receiving a handover command, and if the communication link reaches the second state before receiving the handover command, terminal device 110 performs the third process; or, if the communication link reaches the third state before receiving the handover command, terminal device 110 performs one or more of the first process, the second process, the fourth process, the fifth process, and the sixth process. Alternatively, if the first timer starts before receiving the handover command, the terminal device 110 performs one or more of the following: a seventh process, for stopping the transmission of the first report until the first timer starts; an eighth process, for sending one or more first reports before the first timer starts, the first reports indicating first link information and / or the possibility of future wireless link failure; a ninth process, for sending one or more first reports indicating that the communication link has reached the second state if the communication link reaches the second state before receiving the handover command. On the other hand, if the first timer starts at the time of receiving the handover command or after receiving the handover command, the terminal device 110 performs the third process.

[0112] In some embodiments of this disclosure, terminal device 110 is configured to perform an event-triggered reporting, and terminal device 110 is configured to perform RRM prediction and RLF prediction. In some embodiments of this disclosure, terminal device 110 obtains first RLF prediction information, wherein the first RLF prediction information includes the first link information. Additionally or alternatively, terminal device 110 obtains second RLF prediction information, wherein the second RLF prediction information includes predicted RLF events. If the communication link is in the first state, terminal device 110 performs the first process and / or the second process. If the first timer starts before receiving a handover command, wherein if the communication link reaches the second state before receiving a handover command, terminal device 110 performs the third process; or, if the communication link reaches the third state before receiving a handover command, terminal device 110 performs one or more of the first process, the second process, the fourth process, the fifth process, and the sixth process. On the other hand, if the first timer starts at the time of receiving a handover command or after receiving a handover command, terminal device 110 performs the third process.

[0113] In a further embodiment of this disclosure, if the RLF event does not occur, the terminal device 110 performs the third process. Otherwise, if the RLF event occurs before receiving the handover command, the terminal device 110 performs one or more of the first process, the second process, the fourth process, the fifth process, and the sixth process. On the other hand, if the RLF event occurs when or after receiving the handover command, the terminal device 110 performs the third process.

[0114] In some embodiments of this disclosure, terminal device 110 is configured to perform multiple event-triggered reportings, and terminal device 110 is configured to perform RRM prediction and RLF prediction. In some embodiments of this disclosure, terminal device 110 obtains first RLF prediction information, wherein the first RLF prediction information includes the first link information. Additionally or alternatively, terminal device 110 obtains second RLF prediction information, wherein the second RLF prediction information includes predicted RLF events. At block 710, if the communication link is in the first state, terminal device 110 performs the first process and / or the second process. Otherwise, if the first timer starts before receiving a handover command, wherein if the communication link reaches the second state before receiving a handover command, terminal device 110 performs the third process; or, if the communication link reaches the third state before receiving a handover command, terminal device 110 performs one or more of the first process, the second process, the fourth process, the fifth process, and the sixth process. On the other hand, if the first timer starts at the time of receiving a handover command or after receiving a handover command, terminal device 110 performs the third process. In some embodiments, the first timer is started before receiving a handover command, and the terminal device 110 performs one or more of the following: a seventh process, for stopping the transmission of the first report until the first timer starts; an eighth process, for sending one or more first reports before the first timer starts, the first reports indicating first link information and / or the possibility of future wireless link failure; a ninth process, for sending one or more first reports if the communication link reaches the second state before receiving the handover command, the first reports indicating that the communication link has reached the second state.

[0115] In a further embodiment of this disclosure, if the RLF event does not exist, the terminal device 110 performs the third process. Otherwise, if the RLF event occurs before receiving the handover command, the terminal device 110 performs one or more of the first process, the second process, the fourth process, the fifth process, and the sixth process. On the other hand, if the RLF event occurs at the time of receiving the handover command or after receiving the handover command, the terminal device 110 performs the third process. In some embodiments of this disclosure, if the first timer starts before receiving the handover command, the terminal device 110 performs one or more of the following: a seventh process, for stopping the transmission of the second report until the first timer starts; an eighth process, for sending one or more second reports before the first timer starts, the second reports indicating first link information and / or the possibility of future wireless link failure; a ninth process, for sending one or more second reports if the communication link reaches the second state before receiving the handover command, the second reports indicating that the communication link has reached the second state.

[0116] In some embodiments of this disclosure, terminal device 110 is configured to perform the periodically triggered reporting, and terminal device 110 is configured to perform RRM prediction but not RLF prediction. If the communication link is in the first state, terminal device 110 performs the first process and / or the second process. Otherwise, if the first timer starts before receiving a handover command, wherein if the communication link reaches the second state before receiving the handover command, terminal device 110 performs the third process; or, wherein if the communication link reaches the third state before receiving the handover command, terminal device 110 performs one or more of the first process, the second process, the fourth process, the fifth process, and the sixth process. In some embodiments, if the first timer starts before receiving a handover command, the terminal device 110 performs one or more of the following: a seventh process, for stopping the transmission of the second report until the first timer starts; an eighth process, for sending one or more second reports before the first timer starts, the second reports indicating first link information and / or the possibility of future wireless link failure; a ninth process, for sending one or more second reports indicating that the communication link has reached the second state if the communication link reaches the second state before receiving the handover command. On the other hand, if the first timer starts at the time of receiving the handover command or after receiving the handover command, the terminal device 110 performs the third process.

[0117] In some embodiments of this disclosure, terminal device 110 is configured to perform reporting for the periodically triggered event, and terminal device 110 is configured to perform RRM prediction and RLF prediction. In embodiments of this disclosure, terminal device 110 obtains first RLF prediction information, wherein the first RLF prediction information includes the first link information. Additionally or alternatively, terminal device 110 obtains second RLF prediction information, wherein the second RLF prediction information includes predicted RLF events. In some embodiments of this disclosure, if the communication link is in the first state, terminal device 110 performs the first process and / or the second process. Otherwise, if the first timer starts before receiving a handover command, wherein if the communication link reaches the second state before receiving the handover command, terminal device 110 performs the third process; or, wherein if the communication link reaches the third state before receiving the handover command, terminal device 110 performs one or more of the first process, the second process, the fourth process, the fifth process, and the sixth process. On the other hand, if the first timer starts at the time of receiving a handover command or after receiving a handover command, terminal device 110 performs the third process. In some embodiments, the first timer is started before receiving a handover command, and the terminal device 110 performs one or more of the following: a seventh process, for stopping the transmission of the first report until the first timer starts; an eighth process, for sending one or more first reports before the first timer starts, the first reports indicating first link information and / or the possibility of future wireless link failure; a ninth process, for sending one or more first reports if the communication link reaches the second state before receiving the handover command, the first reports indicating that the communication link has reached the second state.

[0118] In some embodiments of this disclosure, if the RLF event does not occur, the terminal device 110 performs the third process. Conversely, if the RLF event occurs before receiving the handover command, the terminal device 110 performs one or more of the first, second, fourth, fifth, and sixth processes. Conversely, if the RLF event occurs at the time of receiving the handover command or after receiving the handover command, the terminal device 110 performs the third process. In some embodiments of this disclosure, if the first timer starts before receiving the handover command, the terminal device 110 performs one or more of the following: a seventh process, used to stop sending the second report until the first timer starts; an eighth process, used to send one or more second reports before the first timer starts, the second reports indicating first link information and / or the possibility of future wireless link failure; a ninth process, used to send one or more second reports if the communication link reaches the second state before receiving the handover command, the second reports indicating that the communication link has reached the second state.

[0119] The following detailed description of some embodiments of this disclosure is provided in conjunction with specific examples. It should be understood that the following specific examples are supplementary descriptions to the above disclosure and should not be construed as any limitation on the above disclosure.

[0120] Figure 4 A schematic communication scenario diagram illustrating a communication process according to some embodiments of the present disclosure is shown. For example... Figure 4In the communication scenario 400 shown, during the first time window OW, terminal device 110 obtains continuous historical measurement results through Radio Resource Management (RRM) prediction and predicts a predicted measurement event that will occur during the second time window t2. At the beginning of the second time window PW, terminal device 110 initiates a handover preparation process 410. Within the second time window PW, if the predicted measurement event meets the entry condition, network device 120 sends a handover command to terminal device 110, causing terminal device 110 to execute a handover process 420. In some embodiments, terminal device 110 receives the handover command from network device 120 and starts timer T304. In some embodiments, the first time window OW can be an observation window for RRM prediction, and the second time window PW can be a prediction window for RRM prediction, wherein the continuous measurement results in the second time window PW are predicted from the continuous historical measurement results in the first time window OW. In some embodiments, the entry condition can be, for example, when the signal quality meets the condition of a certain "event" (e.g., the residential cell signal is higher than the serving cell signal by a predetermined threshold). In some embodiments, the terminal device 110 may report a predetermined number of times to avoid updating the RRM inference results. In some embodiments, the historical measurement data in the first time window OW may include two prediction dimensions: cell-level and beam-level, such as L1 beam-level and L3 cell / beam-level measurement results, to optimize network mobility performance. The predicted measurement data in the second time window PW may also include two prediction dimensions: cell-level and beam-level, such as L1 beam-level and L3 cell / beam-level measurement results.

[0121] Continue to refer to Figure 4In the illustrated communication scenario 400, during Radio Link Sense (RLM) and Radio Link Failure (RLF) processes, before the handover preparation process begins, terminal device 110 obtains a first consecutive number of first link indication messages. In some embodiments, the first link indication messages indicate a communication link out-of-sync state, such as an out-of-sync indication. If terminal device 110 obtains a specific consecutive number of out-of-sync indications before the handover preparation process, for example, if this number is less than N310, and continues until the handover preparation process begins or after obtaining N310 out-of-sync indications (e.g., during period 451), then a first timer (e.g., T310) is started from 452. In some embodiments, if the first timer (e.g., T310) starts, the communication link is in a dangerous but not yet failed state, and a link recovery attempt is made. In some embodiments, during the execution of the first timer (e.g., during period 452), terminal device 110 obtains second link information, wherein the second link information includes a second consecutive number of second link indication messages, the second link indication messages indicating a communication link synchronization state. For example, during the operation of the first timer (e.g., T310), if the physical layer continuously receives N311 in-sync indications, the terminal device 110 considers the link to have recovered, stops the first timer, the wireless link connection continues, and a new round of Radio Link Sense (RLM) procedure is initiated. On the other hand, if the first timer T310 times out, a Radio Link Failure (RLF) procedure is triggered, and the terminal device 110 interrupts the current connection. In some embodiments, if access layer security is not activated, the terminal device 110 enters the Radio Resource Control (RRC) idle state (IDLE). Otherwise, the terminal device 110 initializes the RRC connection reconstruction mechanism and starts a second timer (e.g., T311). In some embodiments, during the operation of the second timer, the terminal device 110 attempts to select a suitable cell. If a suitable cell exists, the terminal device 110 initiates an RRC connection reconstruction request to the target base station of that cell. If the target base station does not accept the reconstruction request (e.g., in the case of no UE context information), the reconstruction fails, and the terminal device 110 enters the RRC idle state. On the other hand, if the second timer times out and no suitable cell still exists, the terminal device 110 enters the RRC idle state. It should be understood that during the operation of the first timer T310 until the timeout period, the terminal device 110 is unable to receive the switching command from the network device 120, nor can it send a measurement report to the network device 120.

[0122] Figure 5A and Figure 5B A schematic diagram illustrating wireless link failure prediction according to some embodiments of the present disclosure is shown. Figure 5AThis specifically illustrates a scenario where indirect radio link failure (RLF) prediction is performed based on actual measurement results. For example... Figure 5A As shown, in the indirect RLF prediction 510, the terminal device 110 predicts future link information (e.g., L1-SINR) based on the actual historical link information (e.g., L1-SINR) of the serving cell through the RLF prediction process. In some embodiments, during the post-processing of the first timer T310, the terminal device 110 determines future RLF events based on the predicted and optional actual link information (e.g., L1-SINR). Figure 5B This specifically illustrates a scenario where direct radio link failure (RLF) prediction is performed based on actual measurement results. For example... Figure 5B As shown, in direct RLF prediction 520, terminal device 110 directly predicts future RLF events based on the actual historical link information (e.g., L1-SINR) of the serving cell.

[0123] In the embodiments of this disclosure, different example scenarios may exist based on the reporting type used to indicate RRM prediction, the number of reporting times used to indicate RRM prediction, and whether the terminal device supports / is configured for Radio Resource Management (RRM) prediction and / or Radio Link Failure (RLF) prediction. These scenarios will be described in detail below. The present invention does not limit the reporting content of RRM prediction, and it may be the reporting of inference results, the reporting of monitoring results, or the reporting of data collection results, etc.

[0124] In the first scenario, the reporting type is event-triggered reporting. Terminal device 110 is configured to perform one event-triggered reporting, and terminal device 110 is configured to perform RRM prediction but not RLF prediction. In some embodiments, if the communication link between terminal device 110 and network device 120 is in a first state (e.g., terminal device 110 receives fewer than N310 consecutive out-of-sync indications before triggering inference result reporting, where terminal device 110 has not yet started timer T310), terminal device 110 performs the first process and / or the second process. In some embodiments of this disclosure, terminal device 110 is capable of supporting prediction of L1 beam-level measurements in RRM measurement prediction. In some embodiments, the first timer starts before receiving a handover command (e.g., timer T310 starts before the handover command), and terminal device 110 can determine whether the link can be restored before the handover command (e.g., whether terminal device 110 can receive N311 consecutive in-sync indications during the operation of timer T310). If the communication link reaches the second state (e.g., can be restored) before receiving the handover command, the terminal device 110 performs the third process. If the communication link reaches the third state (e.g., cannot be restored) before receiving the handover command, the terminal device 110 performs one or more of the first, second, fourth, fifth, and sixth processes. On the other hand, if the first timer starts at the time of receiving the handover command or after receiving the handover command (e.g., when the start time of timer T310 occurs after the handover command), the terminal device 110 performs the third process.

[0125] In the second scenario, the reporting type is event-triggered reporting. Terminal device 110 is configured to perform multiple event-triggered reports and is configured to perform RRM prediction but not RLF prediction. In some embodiments, if the communication link between terminal device 110 and network device 120 is in a first state (e.g., terminal device 110 receives fewer than N310 consecutive out-of-sync indications before triggering inference result reporting, where timer T310 has not yet started), terminal device 110 performs a first process and / or a second process. In some embodiments of this disclosure, terminal device 110 is capable of supporting L1 beam-level measurement prediction in RRM measurement prediction. In some embodiments, if the first timer starts before receiving a handover command (e.g., timer T310 starts before the handover command), terminal device 110 can determine whether the link can be restored before the handover command (e.g., whether terminal device 110 receives N311 consecutive in-sync indications during timer T310 operation), and perform one or more of the seventh, eighth, and ninth processes. Alternatively, if the first timer starts before receiving the handover command, and if the communication link reaches the second state before receiving the handover command, the terminal device 110 performs the third process; if the communication link reaches the third state before receiving the handover command, the terminal device 110 performs one or more of the first process, the second process, the fourth process, the fifth process, and the sixth process. On the other hand, if the first timer starts at the time of receiving the handover command or after receiving the handover command, the terminal device 110 performs the third process.

[0126] In embodiments of this disclosure, network device 120 can determine whether terminal device 110 may have activated T310 or experienced a wireless link failure based on the location of the last received measurement report. In some embodiments, if network device 120 receives an "out-of-sync" instruction from terminal device 110, and subsequently receives an instruction to restore "out-of-sync" in a measurement report, then network device 120 continues to send a handover command; otherwise, it does not send a handover command. Optionally, if network device 120 does not receive a measurement report for a period of time, and has not received one before sending the handover command, it does not send a handover command; if it receives a measurement report again, it sends a handover command.

[0127] In the third scenario, the reporting type is event-triggered reporting. Terminal device 110 is configured to perform an event-triggered reporting operation, and is also configured to perform RRM prediction and RLF prediction. In some embodiments of this disclosure, terminal device 110 obtains first RLF prediction information, which includes first link information. Additionally or alternatively, terminal device 110 obtains second RLF prediction information, which includes predicted RLF events.

[0128] In some embodiments of this disclosure, for example in indirect RLF prediction, first link information is obtained based on first RLF prediction information. If the communication link between terminal device 110 and network device 120 is in a first state (e.g., terminal device 110 receives fewer than N310 consecutive out-of-sync indications before triggering inference result reporting, where terminal device 110 has not yet started timer T310), terminal device 110 performs a first process and / or a second process. In some embodiments of this disclosure, terminal device 110 is capable of supporting L1 beam-level measurement prediction in RRM measurement prediction and using link information from indirect RLF prediction. In some embodiments, the first timer is started before receiving a handover command (e.g., timer T310 starts before the handover command), and terminal device 110 can determine whether the link can be restored before the handover command (e.g., whether terminal device 110 receives N311 consecutive in-sync indications during timer T310 operation). If the communication link reaches a second state (e.g., can be restored) before receiving the handover command, terminal device 110 performs a third process. If the communication link reaches a third state (e.g., cannot recover) before receiving the handover command, the terminal device 110 performs one or more of the first, second, fourth, fifth, and sixth processes. On the other hand, if the first timer starts at the time of receiving the handover command or after receiving the handover command (e.g., when the start time of timer T310 occurs after the handover command), the terminal device 110 performs the third process.

[0129] In some embodiments of this disclosure, such as in direct RLF prediction, if it can be determined that no RLF event exists based on the second RLF prediction information, the terminal device 110 performs a third process. In some embodiments, if the RLF event occurs before receiving the handover command, the terminal device 110 performs one or more of the first, second, fourth, fifth, and sixth processes. On the other hand, if the RLF event occurs at the time of receiving the handover command or after receiving the handover command, the terminal device 110 performs the third process.

[0130] In the fourth scenario, the reporting type is event-triggered reporting, and the terminal device 110 is configured to perform multiple event-triggered reports. The terminal device 110 is also configured to perform RRM prediction and RLF prediction. In some embodiments of this disclosure, the terminal device 110 obtains first RLF prediction information, which includes first link information. Additionally or alternatively, the terminal device 110 obtains second RLF prediction information, which includes predicted RLF events.

[0131] In some embodiments of this disclosure, for example in indirect RLF prediction, first link information is obtained based on first RLF prediction information. If the communication link between terminal device 110 and network device 120 is in a first state (e.g., terminal device 110 receives fewer than N310 consecutive out-of-sync indications before triggering inference result reporting, where terminal device 110 has not yet started timer T310), terminal device 110 performs a first process and / or a second process. In some embodiments of this disclosure, terminal device 110 is capable of supporting L1 beam-level measurement prediction in RRM measurement prediction and using link information from indirect RLF prediction. In some embodiments, the first timer is started before receiving a handover command (e.g., timer T310 starts before the handover command), and terminal device 110 can determine whether the link can be restored before the handover command (e.g., whether terminal device 110 receives N311 consecutive in-sync indications during timer T310 operation). If the communication link reaches a second state (e.g., can be restored) before receiving the handover command, terminal device 110 performs a third process. If the communication link reaches a third state (e.g., cannot recover) before receiving the handover command, terminal device 110 executes one or more of the first, second, fourth, fifth, and sixth processes. Conversely, if the first timer starts at the time of receiving the handover command or after receiving the handover command (e.g., when timer T310 starts after the handover command), terminal device 110 executes the third process. In some embodiments, if the first timer starts before receiving the handover command, terminal device 110 executes one or more of the seventh, eighth, and ninth processes.

[0132] In some embodiments of this disclosure, such as in direct RLF prediction, if it can be determined that no RLF event exists based on the second RLF prediction information, the terminal device 110 performs a third process. In some embodiments, if the RLF event occurs before receiving the handover command, the terminal device 110 performs one or more of the first, second, fourth, fifth, and sixth processes. On the other hand, if the RLF event occurs at the time of receiving the handover command or after receiving the handover command, the terminal device 110 performs a third process. In some embodiments, if the first timer starts before receiving the handover command, the terminal device 110 performs one or more of the seventh, eighth, and ninth processes.

[0133] In the fifth scenario, the reporting type is periodically triggered reporting, and terminal device 110 is configured to perform RRM prediction but not RLF prediction. If the communication link between terminal device 110 and network device 120 is in a first state (e.g., terminal device 110 receives fewer than N310 consecutive out-of-sync indications before triggering inference result reporting, where terminal device 110 has not yet started timer T310), terminal device 110 performs the first and / or second processing. In some embodiments of this disclosure, if the first timer starts before receiving the handover command (e.g., timer T310 starts before the handover command), and if the communication link reaches a second state (e.g., recoverable) before receiving the handover command, terminal device 110 performs the third processing; or, if the communication link reaches a third state (e.g., unrecoverable) before receiving the handover command, terminal device 110 performs one or more of the first, second, fourth, fifth, and sixth processing. In some embodiments, if the first timer starts before receiving the handover command, terminal device 110 performs one or more of the seventh, eighth, and ninth processing. On the other hand, if the first timer starts when the switching command is received or after the switching command is received (for example, when the timer T310 starts after the switching command), the terminal device 110 performs the third processing.

[0134] In the sixth scenario, the reporting type is periodically triggered reporting, and terminal device 110 is configured to perform RRM prediction and RLF prediction. In embodiments of this disclosure, terminal device 110 obtains first RLF prediction information, wherein the first RLF prediction information includes first link information. Additionally or alternatively, terminal device 110 obtains second RLF prediction information, wherein the second RLF prediction information includes predicted RLF events. In some embodiments of this disclosure, for example in indirect RLF prediction, first link information is obtained based on the first RLF prediction information. The communication link between terminal device 110 and network device 120 is in a first state, and terminal device 110 performs first processing and / or second processing. Otherwise, if the first timer starts before receiving the handover command (e.g., timer T310 starts before the handover command), and if the communication link reaches a second state (e.g., recoverable) before receiving the handover command, the terminal device 110 performs a third process; or, if the communication link reaches a third state (e.g., unrecoverable) before receiving the handover command, the terminal device 110 performs one or more of the first, second, fourth, fifth, and sixth processes. On the other hand, if the first timer starts at the time of receiving the handover command or after receiving the handover command (e.g., when timer T310 starts after the handover command), the terminal device 110 performs the third process. In some embodiments of this disclosure, for example in direct RLF prediction, if it can be determined that no RLF event exists based on the second RLF prediction information, the terminal device 110 performs the third process. On the other hand, if the RLF event occurs before receiving the handover command, the terminal device 110 performs one or more of the first, second, fourth, fifth, and sixth processes. On the other hand, if the RLF event occurs at the time of receiving the handover command or after receiving the handover command, the terminal device 110 performs the third process. In some embodiments of this disclosure, if the first timer starts before receiving the switching command, the terminal device 110 performs one or more of the seventh, eighth, and ninth processes.

[0135] In some embodiments of this disclosure, the first process described above is, for example, stopping RRM inference; the second condition described above is, for example, not triggering inference result reporting; the third process described above is, for example, triggering inference result reporting when an event that meets the conditions for triggering inference result reporting occurs in the future (e.g., meeting the predicted event entry conditions and lasting for a predetermined duration); the fourth process described above is, for example, triggering inference result reporting and carrying additional indication information to instruct the network to switch immediately or carrying additional indication information to instruct the network to experience an imminent radio link failure, thereby preventing the network device from sending a handover command; the fifth process described above is, for example, performing the RLM detection process based on existing mechanisms; the sixth process described above is, for example, starting timer T311 to trigger the RRC reconstruction process; the seventh process described above is, for example, stopping the sending of the first report until the first timer starts; the eighth process described above is, for example, sending one or more first reports before the first timer starts, the first report indicating first link information and / or the possibility of future radio link failure (e.g., an "out-of-sync" failure is occurring); the ninth process described above is, for example, sending one or more first reports if the communication link reaches a second state (e.g., can be recovered) before receiving the handover command, the first report indicating that the communication link has reached a second state (e.g., can be recovered). It should be understood that the above-described processing in this disclosure is merely an example, and similar methods can be used to achieve the same effect.

[0136] According to embodiments of this disclosure, by associating the RRM prediction process with the RLM / RLF process, and combining the RLM / RLF process, the conditions for the terminal device to start / stop inference and trigger / not trigger prediction measurement event reporting are made more effective. The RRM prediction and handover process is optimized, avoiding unnecessary waste of signaling resources. For example, if an RLF event is about to occur before the measurement result reporting that triggers prediction, the terminal device can choose not to trigger measurement reporting and / or stop inference, thereby effectively reducing signaling overhead on the terminal side. In addition, when the network device receives the relevant RLF indication from the terminal device, it can avoid sending invalid handover commands on the network side, thereby effectively reducing signaling overhead on the network side.

[0137] According to some embodiments of this disclosure, the communication process can be implemented by, for example, network device 120. For example, network device 120 receives a first report triggered by an event-based reporting mechanism from terminal device 110; or, network device 120 receives a second report triggered by a periodic reporting mechanism from terminal device 110, wherein the first report or the second report is determined by a communication device performing processing associated with Radio Resource Management (RRM) prediction and / or Radio Link Failure (RLF) based on first link information.

[0138] According to some embodiments of this disclosure, network device 120 may send first configuration information to terminal device 110, the first configuration information indicating the reporting type of RRM prediction, the reporting type including event-triggered reporting or periodically triggered reporting. According to some embodiments of this disclosure, network device 120 may send second configuration information to terminal device 110, the second configuration information indicating the number of times RRM prediction is reported, the number including one or more times. According to some embodiments of this disclosure, network device 120 may send third configuration information to terminal device 110, the third configuration information instructing the communication device to perform Radio Resource Management (RRM) prediction and / or Radio Link Failure (RLF) prediction.

[0139] According to some embodiments of this disclosure, the first report is determined based on the existence of a first event that meets certain conditions within a first time unit, wherein the first report is associated with the first event. According to some embodiments of this disclosure, if the first event that meets certain conditions exists within the first time unit, the network device 120 may send a switching command to the terminal device 110. Alternatively, if the second report includes information related to a second event that meets certain conditions, the network device 120 may send a switching command to the terminal device 110.

[0140] According to some embodiments of this disclosure, the processing performed by the terminal device includes one or more of the following: a first processing for stopping the RRM measurement inference; a second processing for stopping the transmission of a first report and / or a second report; a third processing for transmitting the first report and / or the second report; a fourth processing for transmitting the first report and / or the second report and / or a first indication information, wherein the first indication information includes a second indication information and a third indication information, wherein the second indication information is used to indicate immediate handover, and the third indication information is used to indicate an impending radio link failure; a fifth processing for performing processing based on a first timer timeout; and a sixth processing for performing a Radio Resource Control (RRC) reconstruction procedure.

[0141] According to some embodiments of this disclosure, the first link information is obtained based on wireless link monitoring (RLM), and the first link information includes a first number of consecutive first link indication information, wherein the first link indication information indicates a communication link out of sync state, wherein: if the first number is less than a first threshold, the communication link is in a first state; or if the first number is greater than or equal to the first threshold, the first timer is started.

[0142] According to some embodiments of this disclosure, second link information is obtained during the operation of the first timer, wherein the second link information includes a second consecutive number of second link indication messages, the second link indication messages indicating the synchronization state of the communication link. According to some embodiments of this disclosure, if the second number is greater than or equal to a second threshold, the communication link is in a second state and the first timer is stopped; or if the first timer times out, the communication link is in a third state.

[0143] In some embodiments of this disclosure, for example, through the configuration of network device 120, terminal device 110 is configured to perform one event-triggered report, and terminal device 110 is configured to perform RRM prediction but not RLF prediction. If the communication link is in the first state, the first process and / or the second process is executed at terminal device 110. Otherwise, if the first timer starts before a handover command is sent from network device 120 to terminal device 110, wherein if the communication link reaches the second state before a handover command is sent from network device 120 to terminal device 110, the third process is executed at terminal device 110; or, if the communication link reaches the third state before a handover command is sent from network device 120 to terminal device 110, one or more of the first process, the second process, the fourth process, the fifth process, and the sixth process are executed at terminal device 110. On the other hand, if the first timer starts when a handover command is sent from network device 120 to terminal device 110 or after a handover command is sent from network device 120 to terminal device 110, terminal device 110 performs the third process.

[0144] In some embodiments of this disclosure, for example through the configuration of network device 120, terminal device 110 is configured to perform multiple event-triggered reports, and terminal device 110 is configured to perform RRM prediction but not RLF prediction. If the communication link is in the first state, the first process and / or the second process is performed at terminal device 110. Otherwise, if the first timer starts before receiving a handover command, wherein if the communication link reaches the second state before receiving the handover command, terminal device 110 performs the third process; or, if the communication link reaches the third state before receiving the handover command, terminal device 110 performs one or more of the first process, the second process, the fourth process, the fifth process, and the sixth process. Alternatively, if the first timer starts before a handover command is sent from network device 120 to terminal device 110, one or more of the following are executed at terminal device 110: a seventh process for stopping the transmission of the first report to network device 120 until the first timer starts; an eighth process for sending one or more first reports to network device 120 before the first timer starts, the first reports indicating first link information and / or the possibility of future wireless link failure; and a ninth process for sending one or more first reports to network device 120 if the communication link reaches the second state before receiving the handover command from network device 120, the first reports indicating that the communication link has reached the second state. On the other hand, if the first timer starts when a handover command is sent from network device 120 to terminal device 110 or after a handover command is sent from network device 120 to terminal device 110, the third process is executed at terminal device 110. In some embodiments, the first timer is started before receiving a handover command, and the terminal device 110 performs one or more of the following: a seventh process, for stopping the transmission of the first report until the first timer starts; an eighth process, for sending one or more first reports before the first timer starts, the first reports indicating first link information and / or the possibility of future wireless link failure; a ninth process, for sending one or more first reports if the communication link reaches the second state before receiving the handover command, the first reports indicating that the communication link has reached the second state.

[0145] In some embodiments of this disclosure, for example through the configuration of network device 120, terminal device 110 is configured to perform an event-triggered reporting, and terminal device 110 is configured to perform RRM prediction and RLF prediction. In some embodiments of this disclosure, first RLF prediction information is obtained at terminal device 110, wherein the first RLF prediction information includes the first link information. Additionally or alternatively, second RLF prediction information is obtained at terminal device 110, wherein the second RLF prediction information includes predicted RLF events. If the communication link is in the first state, the first processing and / or the second processing is performed at terminal device 110. If the first timer starts before a handover command is sent from network device 120 to terminal device 110, wherein if the communication link reaches the second state before the handover command is sent from network device 120 to terminal device 110, the third process is executed at terminal device 110; or, if the communication link reaches the third state before the handover command is sent from network device 120 to terminal device 110, one or more of the first process, the second process, the fourth process, the fifth process, and the sixth process are executed at terminal device 110. Conversely, if the first timer starts when a handover command is sent from network device 120 to terminal device 110 or after a handover command is sent from network device 120 to terminal device 110, the third process is executed at terminal device 110.

[0146] In a further embodiment of this disclosure, if the RLF event does not occur, the third process is executed at terminal device 110. Otherwise, if the RLF event occurs before a handover command is sent from network device 120 to terminal device 110, one or more of the first, second, fourth, fifth, and sixth processes are executed at terminal device 110. On the other hand, if the RLF event occurs when a handover command is sent from network device 120 to terminal device 110 or after a handover command is sent from network device 120 to terminal device 110, the third process is executed at terminal device 110.

[0147] In some embodiments of this disclosure, for example through the configuration of network device 120, terminal device 110 is configured to perform multiple event-triggered reports, and terminal device 110 is configured to perform RRM prediction and RLF prediction. In some embodiments of this disclosure, terminal device 110 obtains first RLF prediction information, wherein the first RLF prediction information includes the first link information. Additionally or alternatively, terminal device 110 obtains second RLF prediction information, wherein the second RLF prediction information includes predicted RLF events. At block 710, if the communication link is in the first state, the first processing and / or the second processing is performed at terminal device 110. Otherwise, if the first timer starts before the handover command is sent from network device 120 to terminal device 110, wherein if the communication link reaches the second state before the handover command is sent from network device 120 to terminal device 110, the third process is executed at terminal device 110; or, if the communication link reaches the third state before the handover command is sent from network device 120 to terminal device 110, one or more of the first process, the second process, the fourth process, the fifth process, and the sixth process are executed at terminal device 110. On the other hand, if the first timer starts when the handover command is sent from network device 120 to terminal device 110 or after the handover command is sent from network device 120 to terminal device 110, the third process is executed at terminal device 110. In some embodiments, the first timer is started before receiving a handover command, and the terminal device 110 performs one or more of the following: a seventh process, for stopping the transmission of the first report until the first timer starts; an eighth process, for sending one or more first reports before the first timer starts, the first reports indicating first link information and / or the possibility of future wireless link failure; a ninth process, for sending one or more first reports if the communication link reaches the second state before receiving the handover command, the first reports indicating that the communication link has reached the second state.

[0148] In a further embodiment of this disclosure, if the RLF event does not occur, the third process is executed at terminal device 110. Otherwise, if the RLF event occurs before a handover command is sent from network device 120 to terminal device 110, one or more of the first, second, fourth, fifth, and sixth processes are executed at terminal device 110. On the other hand, if the RLF event occurs when a handover command is sent from network device 120 to terminal device 110 or after a handover command is sent from network device 120 to terminal device 110, the third process is executed at terminal device 110. In some embodiments of this disclosure, if the first timer starts before receiving a handover command, one or more of the following are executed at the terminal device 110: a seventh process for stopping the transmission of the second report until the first timer starts; an eighth process for sending one or more second reports before the first timer starts, the second reports indicating first link information and / or the possibility of future wireless link failure; and a ninth process for sending one or more second reports indicating that the communication link has reached the second state if the communication link reaches the second state before receiving the handover command.

[0149] In some embodiments of this disclosure, for example through the configuration of network device 120, terminal device 110 is configured to perform the periodically triggered reporting, and terminal device 110 is configured to perform RRM prediction but not RLF prediction. If the communication link is in the first state, the first processing and / or the second processing is performed at terminal device 110. Otherwise, if the first timer starts before a handover command is sent from network device 120 to terminal device 110, wherein if the communication link reaches the second state before a handover command is sent from network device 120 to terminal device 110, the third processing is performed at terminal device 110; or, wherein if the communication link reaches the third state before a handover command is sent from network device 120 to terminal device 110, one or more of the first processing, the second processing, the fourth processing, the fifth processing, and the sixth processing are performed at terminal device 110. In some embodiments, if the first timer starts before a handover command is sent from network device 120 to terminal device 110, one or more of the following are executed at terminal device 110: a seventh process for stopping the transmission of the second report until the first timer starts; an eighth process for sending one or more second reports before the first timer starts, the second reports indicating first link information and / or the possibility of future wireless link failure; and a ninth process for sending one or more second reports indicating that the communication link has reached the second state if the communication link reaches the second state before a handover command is sent from network device 120 to terminal device 110. Conversely, if the first timer starts when a handover command is sent from network device 120 to terminal device 110 or after a handover command is sent from network device 120 to terminal device 110, the third process is executed at terminal device 110.

[0150] In some embodiments of this disclosure, for example through the configuration of network device 120, terminal device 110 is configured to perform the periodically triggered reporting, and terminal device 110 is configured to perform RRM prediction and RLF prediction. In embodiments of this disclosure, first RLF prediction information is obtained at terminal device 110, wherein the first RLF prediction information includes the first link information. Additionally or alternatively, second RLF prediction information is obtained at terminal device 110, wherein the second RLF prediction information includes predicted RLF events. In some embodiments of this disclosure, if the communication link is in the first state, the first processing and / or the second processing is performed at terminal device 110. Otherwise, if the first timer starts before the handover command is sent from network device 120 to terminal device 110, wherein if the communication link reaches the second state before the handover command is sent from network device 120 to terminal device 110, the third process is executed at terminal device 110; or, wherein if the communication link reaches the third state before the handover command is sent from network device 120 to terminal device 110, one or more of the first process, the second process, the fourth process, the fifth process, and the sixth process are executed at terminal device 110. On the other hand, if the first timer starts when the handover command is sent from network device 120 to terminal device 110 or after the handover command is sent from network device 120 to terminal device 110, the third process is executed at terminal device 110.

[0151] In some embodiments of this disclosure, if the RLF event does not occur, the third process is executed at terminal device 110. Conversely, if the RLF event occurs before a handover command is sent from network device 120 to terminal device 110, one or more of the first, second, fourth, fifth, and sixth processes are executed at terminal device 110. Alternatively, if the RLF event occurs during or after the handover command is sent from network device 120 to terminal device 110, the third process is executed at terminal device 110. In some embodiments of this disclosure, if the first timer is started before a handover command is sent from network device 120 to terminal device 110, one or more of the following are executed at terminal device 110: a seventh process for stopping the transmission of the second report until the first timer is started; an eighth process for sending one or more second reports before the first timer is started, the second reports indicating first link information and / or the possibility of future wireless link failure; and a ninth process for sending one or more second reports indicating that the communication link has reached the second state if the communication link reaches the second state before the handover command is received from network device 120.

[0152] According to embodiments of this disclosure, by determining the processing associated with RRM prediction and / or RLF based on link information, it is possible to consider RLM-related situations and determine whether to trigger measurement reporting and / or stop RRM-related processing before triggering measurement result reporting. This reduces signaling overhead on the terminal side and avoids the network side sending invalid handover commands, thereby reducing signaling overhead on the network side and optimizing the overall efficiency of the RRM process and communication system.

[0153] Figure 6 A schematic block diagram of a communication device 600 according to some embodiments of the present disclosure is shown. The communication device 600 may be implemented as a terminal device 110 as discussed above, or a part of a terminal device 110 (such as a chip), etc., and this disclosure is not limiting in this regard. Figure 6 As shown, the communication device 600 may include a receiving module 610 and a transmitting module 620. The communication device 600 may be configured to obtain first link information; based on the first link information, perform processing associated with radio resource management (RRM) prediction and / or radio link failure (RLF).

[0154] In some implementations of this disclosure, the communication device 600 may be further configured to execute the various methods and related technical solutions described above, taking the terminal device 110 as an example.

[0155] Figure 7 A schematic block diagram of another communication device 700 according to some embodiments of the present disclosure is shown. The communication device 700 may be implemented as the network device 120 discussed above, or a part of the network device 120 (such as a chip), etc., and this disclosure is not limiting in this regard. Figure 7 As shown, the communication device 700 may include a transmitting module 710 and a receiving module 720. The communication device 700 may be configured to receive a first report based on an event-triggered reporting trigger; or to receive a second report based on a periodic-triggered reporting trigger, wherein the first report or the second report is determined by the communication device performing processing associated with Radio Resource Management (RRM) prediction and / or Radio Link Failure (RLF) based on first link information.

[0156] In some implementations of this disclosure, the communication device 700 may be further configured to execute the various methods and related technical solutions described above, taking the network device 120 as an example.

[0157] Figure 6 The device 600 can be used to implement the various processes described by the terminal device 110 in the above embodiments. Figure 7 The device 700 can be used to implement the various processes described by the network device 120 in the above embodiments, which will not be repeated here for the sake of brevity. It should be understood that the communication device 600 or communication device 700 of this disclosure is based on the mutual correspondence between the terminal side and the network side. Unless otherwise specified, those skilled in the art can understand that their receiving and sending actions and mutual processing can also be understood as having a corresponding relationship.

[0158] Figure 6 and Figure 7 The receiving module involved can be implemented as a receiver or transceiver, the transmitting module can be implemented as a transmitter or transceiver, and the processing module can be implemented as a processor or control circuit.

[0159] It is understood that the division of modules or units in the embodiments of this disclosure is illustrative and only represents a logical functional division. In actual implementation, there may be other division methods. Furthermore, the functional units in the disclosed embodiments may be integrated into one unit, exist as separate physical entities, or be integrated into one unit by two or more entities. The integrated units described above can be implemented in hardware or as software functional units.

[0160] Figure 8A schematic block diagram of an example device 800 that can be used to implement embodiments of the present disclosure is shown. Device 800 may be implemented as or included in terminal device 110. As shown, device 800 includes one or more processors 810, one or more memories 820 coupled to processor 810, and a communication module 840 coupled to processor 810.

[0161] The communication module 840 can be used for bidirectional communication. The communication module 840 may have at least one communication interface for communication. The communication interface may include any interface necessary for communication with other devices.

[0162] Processor 810 can be any type suitable for a local technology network and can include, but is not limited to, one or more of the following: a general-purpose computer, a special-purpose computer, a microcontroller, a digital signal processor (DSP), or a controller-based multi-core controller architecture. Device 800 can have multiple processors, such as application-specific integrated circuit chips, which are time-dependent on a clock synchronized with the main processor.

[0163] Memory 820 may include one or more non-volatile memories and one or more volatile memories. Examples of non-volatile memories include, but are not limited to, at least one of the following: Read-Only Memory (ROM) 824, Erasable Programmable Read-Only Memory (EPROM), Flash Memory, Hard Disk, Compact Disc (CD), Digital Versatile Disc (DVD), or other magnetic and / or optical storage. Examples of volatile memories include, but are not limited to, at least one of the following: Random Access Memory (RAM) 822, or other volatile memories that do not persist during the duration of a power outage.

[0164] Computer program 830 includes computer-executable instructions that are executed by associated processor 810. Program 830 may be stored in ROM 824. Processor 810 may perform any suitable actions and processes by loading program 830 into RAM 822.

[0165] Embodiments of this disclosure can be implemented using program 830, enabling device 800 to perform any of the processes discussed above. Embodiments of this disclosure can also be implemented in hardware or a combination of software and hardware.

[0166] Program 830 may be tangibly contained in a computer-readable medium, which may be included in device 800 (such as in memory 820) or other storage device accessible by device 800. Program 830 may be loaded from the computer-readable medium into RAM 1122 for execution. The computer-readable medium may include any type of tangible non-volatile memory, such as ROM, EPROM, flash memory, hard disk, CD, DVD, etc.

[0167] In some embodiments, the communication module 840 in the device 800 can be implemented as a transmitter and receiver (or transceiver), which can be configured to transmit / receive transmission signals, etc. Additionally, the device 800 may further include one or more of a scheduler, a controller, and a radio frequency / antenna, which will not be described in detail in this disclosure.

[0168] For example, Figure 8 The device 800 in this disclosure can be implemented as a communication device, or as a chip or chip system in a communication device, and the embodiments herein do not limit this.

[0169] Embodiments of this disclosure also provide a chip, which may include an input interface, an output interface, and processing circuitry. In embodiments of this disclosure, the input and output interfaces can be used to complete the interaction of signaling or data, while the processing circuitry can be used to generate and process the signaling or data information.

[0170] Embodiments of this disclosure also provide a chip system including a processor for supporting a device to implement the functions involved in any of the foregoing embodiments. In one possible design, the chip system may further include a memory for storing necessary program instructions and data, which, when executed by the processor, cause the device on which the chip system is mounted to implement the methods involved in any of the foregoing embodiments. Exemplarily, the chip system may consist of one or more chips, or may include chips and other discrete devices.

[0171] Embodiments of this disclosure also provide a processor for coupling with a memory storing instructions that, when executed by the processor, cause the processor to perform the methods and functions involved in any of the above embodiments.

[0172] Embodiments of this disclosure also provide a computer program product containing instructions that, when run on a computer, cause the computer to perform the methods and functions involved in any of the embodiments described above.

[0173] Embodiments of this disclosure also provide a computer-readable storage medium having computer instructions stored thereon, which, when executed by a processor, cause the processor to perform the methods and functions involved in any of the above embodiments.

[0174] Embodiments of this disclosure also provide a communication system, including a first device and a second device. For example, the first device is as follows: Figure 6 The communication device 600 shown, the second device is as follows Figure 7 The communication device 700 shown.

[0175] Generally, the various embodiments of this disclosure can be implemented in hardware or dedicated circuitry, software, logic, or any combination thereof. Some aspects can be implemented in hardware, while others can be implemented in firmware or software, which can be executed by a controller, microprocessor, or other device. Although various aspects of the embodiments of this disclosure are shown and described as block diagrams, flowcharts, or represented using some other illustration, it should be understood that the blocks, apparatuses, systems, techniques, or methods described herein can be implemented as, as non-limiting examples, in hardware, software, firmware, dedicated circuitry or logic, general-purpose hardware or controllers or other devices, or some combination thereof.

[0176] This disclosure also provides at least one computer program product tangibly stored on a non-transitory computer-readable storage medium. The computer program product includes computer-executable instructions, such as instructions included in program modules, which execute in a device on a target real or virtual processor to perform the processes / methods as described above with reference to the accompanying drawings. Typically, program modules include routines, programs, libraries, objects, classes, components, data structures, etc., that perform specific tasks or implement specific abstract data types. In various embodiments, the functionality of program modules can be combined or divided among program modules as needed. The machine-executable instructions for the program modules can execute within a local or distributed device. In a distributed device, the program modules can reside in both local and remote storage media.

[0177] Computer program code used to implement the methods of this disclosure may be written in one or more programming languages. This computer program code may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing apparatus, such that when executed by the computer or other programmable data processing apparatus, the program code causes the functions / operations specified in the flowcharts and / or block diagrams to be performed. The program code may be executed entirely on a computer, partially on a computer, as a stand-alone software package, partially on a computer and partially on a remote computer, or entirely on a remote computer or server.

[0178] In the context of this disclosure, computer program code or related data may be carried on any suitable carrier to enable a device, apparatus, or processor to perform the various processes and operations described above. Examples of carriers include signals, computer-readable media, and so on. Examples of signals may include electrical, optical, radio, sound, or other forms of propagation signals, such as carrier waves, infrared signals, etc.

[0179] A computer-readable medium can be any tangible medium that contains or stores a program for or relating to an instruction execution system, apparatus, or device. A computer-readable medium can be a computer-readable signal medium or a computer-readable storage medium. A computer-readable medium can be, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination thereof. More detailed examples of computer-readable storage media include electrical connections with one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0180] Furthermore, although the operation of the methods of this disclosure is described in a specific order in the accompanying drawings, this does not require or imply that these operations must be performed in that specific order, or that all of the operations shown must be performed to achieve the desired result. Rather, the steps depicted in the flowcharts may be performed in a different order. Additionally or alternatively, certain steps may be omitted, multiple steps may be combined into one step, and / or one step may be broken down into multiple steps. It should also be noted that the features and functions of two or more devices according to this disclosure may be embodied in one device. Conversely, the features and functions of one device described above may be further divided and embodied by multiple devices.

[0181] It should be understood that although this disclosure describes the technical solutions of the present invention according to the above embodiments, this disclosure is not limited to the embodiments or configurations described above. The technical solutions of this disclosure also include various variations and equivalent variations based on the above embodiments. Other combinations including one or more elements included in the above embodiments also fall within the scope or spirit of this disclosure. For one or more embodiments, at least one of the components shown in one or more of the drawings and descriptions may be configured to perform one or more operations, techniques, processes or methods described in another example section. For example, the baseband circuit described in conjunction with one or more of the drawings and descriptions may be configured to operate according to one or more of another example. As another example, circuitry associated with one or more of the UE, base station, network elements, etc., described in conjunction with one or more of the drawings and descriptions may be configured to operate according to one or more of the examples shown in another example section.

[0182] The terms, phrases, and other expressions used in the embodiments of this disclosure are merely exemplary and can be replaced with substantially the same or similar expressions. In particular, since the technical content involved in the above embodiments is related to technical specifications, the expressions in the above embodiments can be replaced with substantially the same or similar expressions in the technical specifications, as well as corresponding expressions adjusted by the evolution of the technical specifications and substantially covered by the technology. Therefore, even if the expressions in this disclosure differ from those in the technical specifications, as long as they do not depart from the technical essence and the scope of the technical concept of this invention, they should be understood as substantially the same as the expressions and technical content of this disclosure.

[0183] In embodiments of this disclosure, the information "sent" and "received" may include the same or different messages or elements already described in the technical specifications, or may be included in newly defined messages or elements and sent and received. In the above embodiments, the information sent and received may use different layers and / or different channels than those described in the above embodiments.

[0184] In the embodiments of this disclosure, terms such as “determine,” “calculate,” “obtain,” “instruct,” and “represent” do not necessarily indicate the existence of corresponding actions, signaling, or algorithms, but are used to facilitate the understanding of the relationship between the technical ideas and features of the technical solution of the present invention, and should not be construed as constituting unnecessary limitations on the technical essence of the present invention.

[0185] In embodiments of this disclosure, the terms “comprising” and “including” and their derivatives mean including but not limited to; the term “or” is inclusive, meaning and / or; the phrases “associated with” and “associated with” and their derivatives may mean including, being included in, interconnected with, containing, contained within, connected to or connected to, coupled to or coupled to, able to communicate with, cooperate with, interleaved, juxtaposed, proximate, bound to or bound to, having, having the attributes of, etc.; and the term “controller” means any device, system or part thereof that controls at least one operation, such device may be implemented in hardware, firmware or software or some combination of at least two of them. It should be noted that the functionality associated with any particular controller may be centralized or distributed, whether local or remote.

[0186] In embodiments of this disclosure, the terms “example” or “exemplary” are used herein to mean “served as an example, instance, or illustration.” Any embodiment or implementation of the subject matter described as “exemplary” in this disclosure is not necessarily to be construed as preferred or advantageous over other embodiments.

[0187] In embodiments of this disclosure, the term "approximately" means a value that is nearly correct or precise. For example, approximately may refer to a value within a specific range of precise (or expected) values. However, it should be understood that actual thresholds (or tolerances) may vary. For example, in some embodiments, "approximately" may mean within 0.1% of some specified or expected value, while in various other embodiments, the threshold may be, for example, 2%, 3%, 5%, etc., depending on specific expectations or requirements.

[0188] Various components or modules can be described as being "configured to" perform one or more actions, operations, or processes. In this context, "configured to" is a broad expression generally meaning "having a structure" that performs one or more actions, operations, or processes during operation. Therefore, even when a component or module is not currently performing an action, operation, or process, it can still be configured to perform that action, operation, or process (e.g., a set of electrical conductors can be configured to electrically connect one module to another, even when the two modules are not connected). In some contexts, "configured to" can be a broad expression generally meaning a structure that "has" one or more tasks during operation. Therefore, even when a component or module is not currently powered on, it can still be configured to perform an action, operation, or process. Typically, the circuit forming the structure corresponding to "configured to" can include hardware circuitry.

[0189] The technologies described in this disclosure can be implemented in and / or used with a variety of different types of devices, including but not limited to any of the following computing devices: unmanned aerial vehicles (UAVs), unmanned aerial vehicle controllers (UACs), UTM servers, base stations, access points, cellular phones, tablet computers, wearable computing devices, portable media players, and various other computing devices.

[0190] Furthermore, this disclosure uses terminology found in some communication standards and specifications (e.g., 3GPP, xRAN, ORAN) to describe one or more embodiments, but these are merely examples for illustrative purposes. One or more embodiments of this disclosure can also be readily adapted and applied to other communication systems.

[0191] Various implementations of this disclosure have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed implementations. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described implementations. The terminology used herein is chosen to well explain the principles, practical applications, or improvements to technology in the market, or to enable others skilled in the art to understand the various implementations disclosed herein.

[0192] For ease of explanation, the relevant technical terms used in this disclosure include the following: UE, User Equipment BS, Base Station: Base station RLM, Radio Link Monitoring: Wireless Link Monitoring RRM, Radio Resource Management. RLF, Radio Link Failure: The wireless link has failed.

Claims

1. A communication method, the communication method being performed by a communication device, the method comprising: Obtain first link information; Based on the first link information, perform processing associated with Radio Resource Management (RRM) prediction and / or Radio Link Failure (RLF).

2. The communication method according to claim 1, further comprising one or more of the following: Obtain first configuration information, which is used to indicate the reporting type of RRM prediction, the reporting type including event-triggered reporting or periodic-triggered reporting; Obtain second configuration information, which indicates the number of times the RRM prediction is reported, including one or more times; Obtain third configuration information, which instructs the communication device to perform radio resource management (RRM) prediction and / or radio link failure (RLF) prediction.

3. The communication method according to claim 2, further comprising: Based on the event-triggered reporting, a first report is triggered. The first report is determined based on the existence of a first event that meets certain conditions in a first time unit, wherein the first report is associated with the first event. or Based on the periodically triggered reporting, a second report is triggered.

4. The communication method according to claim 3, further comprising: If the first event that meets the conditions exists in the first time unit, then a switching command is received; or If the second report includes information related to a second event that meets the conditions, then a switching command is received.

5. The communication method according to any one of claims 1 to 4, wherein the processing includes one or more of the following: The first step is to stop the RRM measurement inference; The second step is to stop sending the first report and / or the second report; The third processing step is used to send the first report and / or the second report; The fourth processing step is to send a first report and / or a second report and / or a first indication information, wherein the first indication information includes a second indication information and a third indication information, the second indication information is used to indicate an immediate switch, and the third indication information is used to indicate an impending wireless link failure; The fifth process is used to execute the processing based on the timeout of the first timer; The sixth process is used to execute the Radio Resource Control (RRC) reconstruction procedure.

6. The communication method according to any one of claims 1 to 5, wherein the first link information is obtained based on radio link monitoring (RLM), the first link information includes a first consecutive number of first link indication information, wherein the first link indication information indicates a communication link out of sync state, the method further comprising: If the first quantity is less than the first threshold, the communication link is in the first state; or If the first quantity is greater than or equal to the first threshold, the first timer is started.

7. The communication method according to claim 6, further comprising: During the operation of the first timer, second link information is obtained, wherein the second link information includes a second consecutive number of second link indication information, the second link indication information indicating the communication link synchronization status.

8. The communication method according to claim 7, further comprising: If the second quantity is greater than or equal to the second threshold, the communication link is in the second state, and the first timer is stopped; or If the first timer times out, the communication link is in the third state.

9. The communication method according to claims 2 to 8, wherein the communication device is configured to perform one event-triggered reporting, and the communication device is configured to perform RRM prediction but not RLF prediction.

10. The communication method according to claims 2 to 9, wherein the communication device is configured to perform multiple event-triggered reporting, and the communication device is configured to perform RRM prediction but not RLF prediction.

11. The communication method according to claim 9 or 10, further comprising: If the communication link is in the first state, perform the first process and / or the second process.

12. The communication method according to claim 9 or 10, wherein the first timer is started before receiving the switching command, and the method further comprises: If the communication link reaches the second state before receiving the handover command, the third process is executed; If the communication link reaches the third state before receiving the switching command, one or more of the first process, the second process, the fourth process, the fifth process, and the sixth process are executed.

13. The communication method according to claim 10, wherein the first timer is started before receiving the switching command, and the method further comprises: Perform one or more of the following: The seventh step is to stop sending the first report until the first timer starts; The eighth process is used to send one or more first reports before the first timer starts, the first reports indicating first link information and / or the possibility of future wireless link failure; The ninth process is used to send one or more first reports if the communication link reaches the second state before receiving the switching command, the first reports indicating that the communication link has reached the second state.

14. The communication method according to claim 9 or 10, wherein the first timer is started upon receiving a switching command or after receiving a switching command, the method further comprising: Perform the third process.

15. The communication method according to claims 2 to 8, wherein the communication device is configured to perform an event-triggered reporting once, and the communication device is configured to perform RRM prediction and RLF prediction.

16. The communication method according to claims 2 to 8, wherein the communication device is configured to perform multiple event-triggered reporting, and the communication device is configured to perform RRM prediction and RLF prediction.

17. The communication method according to claim 15 or 16, further comprising: Obtain first RLF prediction information, wherein the first RLF prediction information includes the first link information; and / or Obtain second RLF prediction information, wherein the second RLF prediction information includes the predicted RLF events.

18. The communication method according to claim 17, wherein the first timer is started before receiving the switching command, and the method further comprises: If the communication link reaches the second state before receiving the handover command, the third process is executed; If the communication link reaches the third state before receiving the switching command, one or more of the first process, the second process, the fourth process, the fifth process, and the sixth process are executed.

19. The communication method according to claim 17, wherein the first timer is started when a switching command is received or after a switching command is received, the method further comprising: Perform the third process.

20. The communication method according to claim 17, further comprising: If the RLF event does not exist, perform the third process.

21. The communication method according to claim 17, wherein if the RLF event occurs before receiving the handover command, the method further comprises: Perform one or more of the first process, the second process, the fourth process, the fifth process, and the sixth process.

22. The communication method according to claim 17, wherein if the RLF event occurs at the time of receiving the handover command or after receiving the handover command, the method further comprises: Perform the third process.

23. The communication method according to claim 17, wherein the first timer is started before receiving the switching command, and the method further comprises: Perform one or more of the following: The seventh step is to stop sending the first report until the first timer starts; The eighth process is used to send one or more first reports before the first timer starts, the first reports indicating first link information and / or the possibility of future wireless link failure; The ninth process is used to send one or more first reports if the communication link reaches the second state before receiving the switching command, the first reports indicating that the communication link has reached the second state.

24. The communication method according to claim 15 or 16, further comprising: If the communication link is in the first state, perform the first process and / or the second process.

25. A communication method, the method comprising: Receive the first report triggered by an event-based reporting mechanism; or Receive a second report triggered by a periodic reporting mechanism. The first report or the second report is determined by the communication device based on the first link information and performing processing associated with radio resource management (RRM) prediction and / or radio link failure (RLF).

26. The communication method according to claim 25, further comprising one or more of the following: Send first configuration information, which is used to indicate the reporting type of RRM prediction, the reporting type including event-triggered reporting or periodic-triggered reporting; Send second configuration information, which indicates the number of times the RRM prediction will be reported, including one or more times; Send third configuration information, which instructs the communication device to perform radio resource management (RRM) prediction and / or radio link failure (RLF) prediction.

27. The communication method of claim 26, wherein the first report is determined based on the existence of a first event satisfying a condition in a first time unit, wherein the first report is associated with the first event.

28. The communication method according to claim 27, further comprising: If a first event that meets the conditions exists within the first time unit, a switching command is sent; or If the second report includes information related to a second event that meets the conditions, a switching command is sent.

29. A communication apparatus comprising at least one processor, the at least one processor being configured to execute computer-executable instructions to implement the communication method according to any one of claims 1 to 40 or 41 to 80.

30. A communication device, characterized in that, include: At least one memory for storing computer-executable instructions; as well as At least one processor is configured to execute the computer-executable instructions to cause the communication device to perform the communication method according to any one of claims 1 to 24 or 25 to 28.

31. A communication system, characterized in that, The communication system includes: A first device is configured to perform the communication method according to any one of claims 1 to 24; and The second device is configured to perform the communication method according to any one of claims 25 to 28.

32. A computer-readable storage medium having instructions stored thereon, which, when executed by a communication device, cause the communication device to perform the communication method according to any one of claims 1 to 24 or 25 to 28.

33. A computer program product storing instructions that, when executed, cause the communication method according to any one of claims 1 to 24 or 25 to 28 to be performed.

34. A chip including processing circuitry configured to perform a communication method according to any one of claims 1 to 24 or 25 to 28.

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