Link quality monitoring method and related product

Abstract

Provided in an embodiment of the present application are a link quality monitoring method and related products, the method comprising: acquiring a first radio link monitoring reference signal (RLM-RS) resource, the first RLM-RS resource being a resource in M first RLM-RS candidate resources, K first RLM-RS candidate resources in the M first RLM-RS candidate resources being used for transmitting a first RLM-RS, M and K being positive integers, k is less than or equal to M; and carrying out wireless link quality monitoring according to the first RLM-RS resource, so that the downlink wireless link quality can be effectively evaluated.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a link quality monitoring method and related products. Background Art

[0002] Unlicensed spectrum is the spectrum allocated by countries and regions that can be used for radio equipment communications. This spectrum is generally considered to be a shared spectrum, that is, as long as communication equipment in different communication systems meets the regulatory requirements set by the country or region on the spectrum, they can use the spectrum without applying for exclusive spectrum authorization from the government.

[0003] In the unlicensed spectrum, since the network device needs to perform Listen Before Talk (LBT) before sending a signal, it is possible that the network device cannot send RLM-RS on the configured radio link monitoring reference signal (RLM-RS) resource. In this case, when the user equipment (UE) performs RLM monitoring, it cannot determine whether the downlink radio link quality on the RLM-RS resource is poor because the network device does not send RLM-RS or the real downlink radio link quality is poor, and thus the downlink radio link quality cannot be effectively evaluated. Summary of the invention

[0004] The embodiments of the present application provide a link quality monitoring method and related products, which can effectively evaluate the quality of a downlink wireless link.

[0005] A first aspect of an embodiment of the present application provides a link quality monitoring method, which is applied to a terminal device. The method includes:

[0006] Acquire a first radio link monitoring reference signal RLM-RS resource, where the first RLM-RS resource is a resource among M first RLM-RS candidate resources, and K first RLM-RS candidate resources among the M first RLM-RS candidate resources are used to transmit a first RLM-RS, where M and K are positive integers, and K is less than or equal to M;

[0007] Perform radio link quality monitoring according to the first RLM-RS resource.

[0008] A second aspect of an embodiment of the present application provides a link quality monitoring device, which is applied to a terminal device, and the device includes:

[0009] an acquiring unit, configured to acquire a first radio link monitoring reference signal RLM-RS resource, where the first RLM-RS resource is a resource among M first RLM-RS candidate resources, and K first RLM-RS candidate resources among the M first RLM-RS candidate resources are used to transmit a first RLM-RS, where M and K are positive integers, and K is less than or equal to M;

[0010] A monitoring unit is used to monitor the quality of the wireless link according to the first RLM-RS resource.

[0011] A third aspect of an embodiment of the present application provides an electronic device, comprising a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor, and the program includes instructions for executing the steps in the method described in the first aspect above.

[0012] A fourth aspect of an embodiment of the present application provides a computer-readable storage medium storing a computer program for electronic data exchange, wherein the computer program enables a computer to execute the method described in the first aspect above.

[0013] A fifth aspect of the embodiments of the present application provides a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute some or all of the steps described in the first aspect of the embodiments of the present application. The computer program product may be a software installation package.

[0014] Implementing the embodiments of the present application has the following beneficial effects:

[0015] By acquiring a first wireless link monitoring reference signal RLM-RS resource, the first RLM-RS resource is a resource among M first RLM-RS candidate resources, K first RLM-RS candidate resources among the M first RLM-RS candidate resources are used to transmit the first RLM-RS, M and K are positive integers, and wireless link quality monitoring is performed according to the first RLM-RS resource. Compared with the existing solution, it is impossible to accurately determine whether the poor wireless link quality is the real poor wireless link quality. After determining the exact RLM-RS resource, link quality monitoring can be performed according to the RLM-RS resource, and wireless link quality monitoring can be performed more accurately.

[0016] These and other aspects of the present application will become more clearly understood in the description of the following embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 A schematic diagram of a communication system architecture is provided for an embodiment of the present application;

[0019] Figure 2 A flowchart of a link quality monitoring method is provided for an embodiment of the present application;

[0020] Figure 3 A schematic diagram of a DRS transmission window is provided for an embodiment of the present application;

[0021] Figure 4 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application;

[0022] Figure 5 A structural schematic diagram of a link quality monitoring device is provided for an embodiment of the present application. DETAILED DESCRIPTION

[0023] The terms used in the implementation mode of this application are only used to explain the specific embodiments of this application, and are not intended to limit this application. The terms "first", "second", "third" and "fourth" in the specification and claims of this application and the drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0024] The terms used in the implementation method section of the application are only used to explain the specific embodiments of the application, and are not intended to limit the application. The terms "first", "second", "third", and "fourth" in the specification and claims of the application and the drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0025] The embodiments of the present application can be applied to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced long term evolution (LTE-A) system, New Radio (NR) system, NR system evolution system, LTE on unlicensed spectrum (LTE-based access to unlicensed spectrum, LTE-U) system, NR on unlicensed spectrum (NR-based access to unlicensed spectrum, NR-U) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (WiFi), next generation communication system or other communication systems, etc.

[0026] Generally speaking, traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communications, but will also support, for example, device to device (Device to Device, D2D) communication, machine to machine (Machine to Machine, M2M) communication, machine type communication (Machine Type Communication, MTC), and vehicle to vehicle (Vehicle to Vehicle, V2V) communication, etc. The embodiments of the present application can also be applied to these communication systems.

[0027] Optionally, the communication system in the embodiment of the present application can be applied to a carrier aggregation (CA) scenario, a dual connectivity (DC) scenario, or a standalone (SA) networking scenario.

[0028] The embodiments of the present application do not limit the spectrum to which they are applied. For example, the embodiments of the present application can be applied to licensed spectrum or unlicensed spectrum.

[0029] Figure 1 A schematic diagram of a communication system architecture is provided for an embodiment of the present application, wherein the communication system includes a network device and a terminal device. Figure 1 As shown, the network device can communicate with the terminal device. The communication system can be a 5G communication system (such as a new radio (NR)), a communication system integrating multiple communication technologies (such as a communication system integrating LTE technology and NR technology), or a subsequent evolution communication system. Figure 1 The forms and quantities of the network devices and terminal devices shown are for example only and do not constitute a limitation on the embodiments of the present application.

[0030] The terminal device in this application is a device with wireless communication function, which can be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; it can also be deployed on the water surface (such as ships, etc.); it can also be deployed in the air (for example, on airplanes, balloons, satellites, etc.). The terminal device can be a mobile phone, a tablet computer (pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical, a wireless terminal in smart grid, a wireless terminal in smart home, etc. The terminal device can also be a handheld device with wireless communication function, a vehicle-mounted device, a wearable device, a computer device or other processing device connected to a wireless modem, etc. Terminal devices may be called different names in different networks, such as: terminal equipment, access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication equipment, user agent or user device, cellular phone, cordless phone, session initiation protocol (SIP) phone, wireless local loop (WLL) station, personal digital assistant (PDA), terminal equipment in 5G network or future evolution network, etc.

[0031] The network device in the present application is a device deployed in a wireless access network to provide wireless communication functions. For example, the network device can be a radio access network (RAN) device on the access network side of a cellular network. The so-called RAN device is a device that connects a terminal device to a wireless network, including but not limited to: evolved Node B (eNB), radio network controller (RNC), Node B (NB), base station controller (BSC), base transceiver station (BTS), home base station (e.g., Home evolved Node B, or Home Node B, HNB), base band unit (BBU), management entity (MME); for another example, the network device can also be a node device in a wireless local area network (WLAN), such as an access controller (AC), a gateway, or a WIFI access point (AP); for another example, the network device can also be a transmission node or a transmission reception point (TRP or TP) in an NR system.

[0032] Unlicensed spectrum is the spectrum allocated by countries and regions that can be used for radio equipment communications. This spectrum is generally considered to be a shared spectrum, that is, as long as communication equipment in different communication systems meets the regulatory requirements set by the country or region on the spectrum, they can use the spectrum without applying for exclusive spectrum authorization from the government.

[0033] In order to allow various communication systems that use unlicensed spectrum for wireless communication to coexist in a friendly manner on the spectrum, some countries or regions have stipulated regulatory requirements that must be met when using unlicensed spectrum. For example, communication equipment follows the "Listen Before Talk (LBT)" principle, that is, before a communication device sends a signal on a channel of the unlicensed spectrum, it needs to first perform channel sensing. Only when the channel sensing result is that the channel is idle can the communication device send a signal; if the channel sensing result of the communication device on the channel of the unlicensed spectrum is that the channel is busy, the communication device cannot send a signal. In order to ensure fairness, in one transmission, the duration of the communication device using the channel of the unlicensed spectrum for signal transmission cannot exceed the Maximum Channel Occupancy Time (MCOT).

[0034] See also Figure 2 , Figure 2 A flow chart of a link quality monitoring method is provided for an embodiment of the present application. Figure 2 As shown, the link quality monitoring method is applied to a terminal device, and the method includes steps S201-S202, which are specifically as follows:

[0035] S201. Acquire a first radio link monitoring reference signal RLM-RS resource, where the first RLM-RS resource is a resource among M first RLM-RS candidate resources, and K first RLM-RS candidate resources among the M first RLM-RS candidate resources are used to transmit a first RLM-RS, where M and K are positive integers.

[0036] Wherein, K is less than or equal to M.

[0037] The first RLM-RS resource includes a synchronization signal block (Synchronization Signal / PBCH Block, SSB) resource and / or a channel state information reference signal (Channel State Information Reference Signal, CSI-RS) resource.

[0038] The first RLM-RS candidate resource may be understood as a resource that may be used to transmit the RLM-RS, and may transmit the RLM-RS or may be in an idle state and not transmit the RLM-RS.

[0039] S202: Perform radio link quality monitoring according to the first RLM-RS resource.

[0040] When the radio link quality monitoring is performed according to the first RLM-RS resource, synchronization evaluation or out-of-synchronization evaluation may be performed.

[0041] When the terminal device performs wireless link quality detection, the terminal device is used to perform downlink wireless link monitoring on the primary cell (PCell) or the secondary cell (PSCell) in dual connectivity (DC), and its purpose may be to report out-of-sync (OOS) / in-sync (IS) status indication to the higher layer.

[0042] In this example, by obtaining the first wireless link monitoring reference signal RLM-RS resource, the first RLM-RS resource is a resource among M first RLM-RS candidate resources, K first RLM-RS candidate resources among the M first RLM-RS candidate resources are used to transmit the first RLM-RS, M and K are positive integers, and wireless link quality monitoring is performed according to the first RLM-RS resource. Compared with the existing solution, it is impossible to accurately determine whether the poor wireless link quality is the real poor wireless link quality. After determining the exact RLM-RS resource, link quality monitoring can be performed according to the RLM-RS resource, and wireless link quality monitoring can be performed more accurately.

[0043] In a possible embodiment, K first RLM-RS candidate resources among M first RLM-RS candidate resources are used to transmit the first RLM-RS, which may include the following method:

[0044] If the number of first RLM-RS candidate resources that obtain channel use rights among the M first RLM-RS candidate resources is greater than or equal to K, then K first RLM-RS candidate resources that obtain channel use rights among the M first RLM-RS candidate resources are used to transmit the first RLM-RS; or,

[0045] The number of first RLM-RS candidate resources that obtain channel use rights among the M first RLM-RS candidate resources is less than K, and the first RLM-RS candidate resources that obtain channel use rights among the M first RLM-RS candidate resources are used to transmit the first RLM-RS.

[0046] The terminal device can detect the M first RLM-RS candidate resources and determine the first RLM-RS candidate resource that transmits the first RLM-RS among the M first RLM-RS candidate resources. The specific detection method can refer to the detection method in the prior art and will not be repeated here.

[0047] Optionally, when the first RLM-RS candidate resource that obtains the channel use right is greater than or equal to K, K can be selected from the first RLM-RS candidate resource that obtains the channel use right for transmitting the RLM-RS. Alternatively, when the first RLM-RS candidate resource that obtains the channel use right is less than K, all the first RLM-RS candidate resources are used to transmit the RLM-RS.

[0048] In a possible embodiment, the terminal device determines K first RLM-RS candidate resources among M first RLM-RS candidate resources for radio link monitoring, including the following method:

[0049] The terminal device detects the M first RLM-RS candidate resources, determines the first RLM-RS candidate resources that transmit the first RLM-RS among the M first RLM-RS candidate resources, and if the number of the first RLM-RS candidate resources that are determined to transmit the first RLM-RS among the M first RLM-RS candidate resources is greater than K, then K of the M first RLM-RS candidate resources that are determined to transmit the first RLM-RS are used for wireless link monitoring; or,

[0050] The number of first RLM-RS candidate resources determined to transmit the first RLM-RS among the M first RLM-RS candidate resources is less than or equal to K, and the first RLM-RS candidate resources determined to transmit the first RLM-RS among the M first RLM-RS candidate resources are used for wireless link monitoring.

[0051] Optionally, when the terminal device determines that the number of first RLM-RS candidate resources that transmit the first RLM-RS is greater than K, K first RLM-RS candidate resources that are determined to transmit the first RLM-RS can be selected for wireless link monitoring. When the terminal device determines that the number of first RLM-RS candidate resources that transmit the first RLM-RS is less than or equal to K, all first RLM-RS candidate resources that are determined to transmit the first RLM-RS are used for wireless link monitoring.

[0052] The specific implementation of this embodiment can refer to the specific implementation of the previous embodiment, and will not be repeated here.

[0053] In a possible embodiment, the first RLM-RS resources include K first RLM-RS candidate resources having the best channel quality among M first RLM-RS candidate resources.

[0054] The K first RLM-RS candidate resources with the best channel quality may be understood as: the K first RLM-RS candidate resources with the highest channel quality evaluation parameters. For example, K may be a positive integer.

[0055] The first RLM-RS resources include the K first RLM-RS candidate resources with the best channel quality among the M first RLM-RS candidate resources, which can be understood as: assuming that the terminal device knows the positions of the M first candidate resources, the channel quality of the positions of the M first candidate resources can be directly detected, and the K first RLM-RS candidate resources with the best channel quality can be determined as the first RLM-RS resources.

[0056] For example, it is assumed that there are 5 first RLM-RS candidate resources, for example, RLM-RS candidate resource 0, RLM-RS candidate resource 1, RLM-RS candidate resource 2, RLM-RS candidate resource 3, and RLM-RS candidate resource 4. Among them, the signal-to-noise ratio of the channel of RLM-RS candidate resource 0 is 10dB, the signal-to-noise ratio of the channel of RLM-RS candidate resource 1 is 8dB, the signal-to-noise ratio of the channel of RLM-RS candidate resource 2 is 15dB, the signal-to-noise ratio of the channel of RLM-RS candidate resource 3 is 5dB, and the signal-to-noise ratio of the channel of RLM-RS candidate resource 4 is 20dB. Then, the three first RLM-RS candidate resources with the best channel quality among the five first RLM-RS candidate resources can be understood as (in terms of the channel signal-to-noise ratio from high to low): RLM-RS candidate resource 4, RLM-RS candidate resource 2, and RLM-RS candidate resource 0. It should be noted that the above examples are only enumerations, and any method for determining the K first RLM-RS candidate resources with the best channel quality among the M first RLM-RS candidate resources based on the above examples is within the protection scope of this application. No further details will be given here.

[0057] In this example, since there are multiple first RLM-RS candidate resource positions, the terminal device can assume that the network device can always send the first RLM-RS through at least some of the RLM-RS candidate resources among the multiple first RLM-RS candidate resource positions. Therefore, the terminal device may not detect the existence of the first RLM-RS, but directly select the RLM-RS candidate resource with the best channel quality as the first RLM-RS resource based on the channel quality status at the candidate resource position, which can improve the efficiency of determining the first RLM-RS resource.

[0058] In a possible embodiment, the first RLM-RS resource includes a first RLM-RS candidate resource among M first RLM-RS candidate resources, where the terminal device determines to transmit the first RLM-RS.

[0059] The method for the terminal device to determine the first RLM-RS candidate resource for transmitting the first RLM-RS may be: the first RLM-RS candidate resource for transmitting the first RLM-RS may be determined based on the detection result of the first RLM-RS or other indication information.

[0060] In this example, when the signal quality requirement is high, the first RLM-RS candidate resource for transmitting the first RLM-RS can be determined by detecting whether the first RLM-RS exists in the first RLM-RS candidate resource. The first RLM-RS can be detected directly, thereby improving the accuracy of determining the first RLM-RS candidate resource.

[0061] In a possible embodiment, the terminal device determines a first RLM-RS candidate resource for transmitting a first RLM-RS, including:

[0062] The terminal device determines, according to the detection result of the first RLM-RS on the M first RLM-RS candidate resources, a first RLM-RS candidate resource for transmitting the first RLM-RS; and / or,

[0063] The terminal device determines a first RLM-RS candidate resource for transmitting a first RLM-RS according to the first information.

[0064] The detection result may include an existence detection result, that is, whether there is a first RLM-RS. If there is a first RLM-RS, its corresponding first RLM-RS candidate resource is determined as the first RLM-RS candidate resource for transmitting the first RLM-RS.

[0065] The first information includes at least one of the following: channel occupancy time (COT) indication information and detection information of the second RLM-RS.

[0066] In a possible embodiment, the first RLM-RS resources include K first RLM-RS candidate resources with the worst channel quality among the M first RLM-RS candidate resources.

[0067] The K first RLM-RS candidate resources with the worst channel quality may be understood as: the K first RLM-RS candidate resources with the lowest channel quality evaluation parameter.

[0068] In a possible embodiment, a method for monitoring radio link quality according to a first RLM-RS resource includes:

[0069] In the synchronization evaluation period, it is evaluated whether the downlink radio link quality estimated on the first RLM-RS resource is higher than the synchronization threshold.

[0070] Synchronous threshold Q in Corresponding block error rate (BLER) value, synchronization threshold Q in The corresponding block error rate (BLER) value can be obtained through the high-level parameters configured by the network, for example, rlmInSyncOutOfSyncThreshold. in The corresponding block error rate (BLER) value can be obtained through preconfigured parameters, such as the synchronization threshold Q in The corresponding block error rate (BLER) value may be 2%, etc.

[0071] When the downlink radio link quality on at least one first RLM-RS resource is better than Qin When the terminal device reports a synchronous IS indication to the upper layer, the reported IS indication needs to be filtered at layer 3.

[0072] Optionally, the synchronization evaluation period is an integer multiple of the period of the first discovery reference signal (Discovery Reference Signal, DRS) transmission window.

[0073] When performing synchronization evaluation, M RLM-RS candidate resources are included in the first DRS transmission window.

[0074] In a possible embodiment, another method of performing radio link quality monitoring according to the first RLM-RS resource includes:

[0075] In the out-of-synchronization evaluation period, it is determined whether the downlink radio link quality estimated on the first RLM-RS resource is lower than the out-of-synchronization threshold.

[0076] Synchronous threshold Q out Corresponding block error rate (BLER) value, synchronization threshold Q out The corresponding block error rate (BLER) value can be obtained through the high-level parameters configured by the network, for example, rlmInSyncOutOfSyncThreshold. out The corresponding block error rate (BLER) value can be obtained through preconfigured parameters, such as the synchronization threshold Q out The corresponding block error rate (BLER) value may be 10%, etc.

[0077] When the downlink radio link quality on the first RLM-RS resource is worse than Q out When the threshold is reached, the terminal device reports an out-of-sync (OOS) indication to the upper layer, wherein the reported OOS indication needs to be filtered at layer 3.

[0078] Optionally, the desynchronization assessment period is an integer multiple of the period of the second DRS transmission window.

[0079] When performing out-of-sync evaluation, M RLM-RS candidate resources are included in the second DRS transmission window.

[0080] In a possible embodiment, the DRS transmission window may include a first DRS transmission window and a second DRS transmission window.

[0081] There can be multiple candidate positions for SSB within the DRS transmission window, and each candidate position can be considered as an SSB candidate resource. The terminal device can determine the QCL (quasi-co-located, QCL) relationship of at least two SSB candidate positions among the multiple SSB candidate positions based on the Q value, and determine the reception of the SSB based on the QCL relationship. When the network device sends SSB within the DRS transmission window, it can perform multiple LBT (listen before sending) attempts, and after the LBT succeeds, it can perform SSB transmission through at least one candidate position among the multiple candidate positions that determines the channel use right based on the QCL relationship. Among them, the value range of Q is {1,2,4,8}, and of course it can also be other values.

[0082] Specifically, the terminal device may assume that the SSBs sent at SSB candidate positions with the same QCL relationship have the same QCL relationship, or in other words, if the network device sends SSBs at SSB candidate positions with the same QCL relationship, then the network device should use the same beam.

[0083] Optionally, SSB candidate positions with the same mod(A, Q) have the same QCL relationship, where A is the index of the SSB candidate position or A is the index of the SSB, and mod is a modulo operation. Optionally, the Q value is indicated by the network device to the terminal device or the Q value is preset.

[0084] See also Figure 3 , Figure 3 A schematic diagram of a DRS transmission window is provided for an embodiment of the present application. Figure 3 As shown, RLM-RS is SSB, and n is an integer greater than or equal to 0. M and Q are the same value. Figure 3 As shown, the SSB candidate position set in the DRS transmission window includes 20 SSB candidate positions, the value range of A is 0 to 19, and the value of Q is 4. The synchronization evaluation period is an integer multiple of the period of the first DRS transmission window, and the desynchronization evaluation period is an integer multiple of the period of the second DRS transmission window. The evaluation period in the figure can be a synchronization evaluation period or a desynchronization evaluation period.

[0085] The terminal device can determine the QCL relationship of the 20 SSB candidate positions according to the Q value as follows:

[0086] SSB 0, 4, 8, 12, 16 have the same QCL relationship;

[0087] SSB 1, 5, 9, 13, and 17 have the same QCL relationship;

[0088] SSB 2, 6, 10, 14, and 18 have the same QCL relationship;

[0089] SSB 3, 7, 11, 15, 19 have the same QCL relationship.

[0090] For ease of description, SSB candidate positions with the same QCL relationship are represented by the same number. In other words, an SSB can be transmitted through at least one of the SSB candidate positions with the same QCL relationship. The network device can select a candidate position that obtains the channel usage right from the SSB candidate positions in the DRS transmission window according to the LBT result in different DRS transmission windows for SSB transmission. For example, SSB#0 can be transmitted through Figure 3 At least one of the candidate positions numbered 0 is transmitted, SSB#1 can be transmitted through Figure 3 At least one of the candidate positions numbered 1 is transmitted, SSB#2 can be transmitted through Figure 3 At least one of the candidate positions numbered 2 is transmitted, SSB#3 can be transmitted through Figure 3 At least one of the candidate positions numbered 3 is transmitted. In the figure, the SSBs actually sent by the network device are SSB#0, SSB#2 and SSB#3.

[0091] Assume that the RLM-RS configured by the terminal device for performing RLM is SSB#2 and SSB#3. Both the IS evaluation period and the OOS evaluation period include a first DRS transmission window and a second DRS transmission window.

[0092] When the terminal device performs IS evaluation, the terminal device determines the first RLM-RS resource in the DRS transmission window according to at least one of the following situations (the first DRS transmission window is taken as an example here, and the second DRS transmission window is also applicable to this method):

[0093] The terminal device detects SSB#2 on SSB 14 in the candidate positions corresponding to SSBs 2, 6, 10, 14, and 18 in the first DRS transmission window, and the terminal device determines that the first RLM-RS resource includes SSB14;

[0094] The terminal device does not detect SSB#2 in the candidate positions corresponding to SSBs 2, 6, 10, 14, and 18 in the first DRS transmission window, then the terminal device determines that the first RLM-RS resource does not include SSBs 2, 6, 10, 14, and 18 in the first DRS transmission window;

[0095] The terminal device performs measurements at the candidate positions of SSB 2, 6, 10, 14, and 18 in the first DRS transmission window, and determines that the first RLM-RS resource corresponding to SSB#2 includes the candidate position with the best channel quality in the measurement results of the above candidate positions;

[0096] The terminal device detects SSB#3 on SSB 11 in the candidate positions of SSB 3, 7, 11, 15, and 19 in the first DRS transmission window, and the terminal device determines that the first RLM-RS resource includes SSB11;

[0097] The terminal device does not detect SSB#3 in the candidate positions corresponding to SSB 3, 7, 11, 15, 19 in the first DRS transmission window, then the terminal device determines that the first RLM-RS resource does not include SSB 3, 7, 11, 15, 19 in the first DRS transmission window;

[0098] The terminal device performs measurements at the candidate positions of SSB 3, 7, 11, 15, and 19 in the first DRS transmission window, and determines that the first RLM-RS resource corresponding to SSB#3 includes the candidate position with the best channel quality in the measurement results at the above candidate positions.

[0099] Furthermore, the terminal device estimates the downlink radio link quality on the first RLM-RS resource and compares it with the threshold value Qin, thereby performing RLM.

[0100] When the terminal device performs OOS evaluation, the terminal device determines the first RLM-RS resource in the DRS transmission window according to at least one of the following situations (here the first DRS transmission window is taken as an example, and the second DRS transmission window is also applicable to this method):

[0101] The terminal device detects SSB#2 on SSB 14 in the candidate positions corresponding to SSBs 2, 6, 10, 14, and 18 in the first DRS transmission window, and the terminal device determines that the first RLM-RS resource includes SSB14;

[0102] The terminal device performs measurements at the candidate positions of SSB 2, 6, 10, 14, and 18 in the first DRS transmission window, and determines that the first RLM-RS resource corresponding to SSB#2 includes the candidate position with the best channel quality in the measurement results of the above candidate positions;

[0103] The terminal device does not detect SSB#2 in the candidate positions corresponding to SSB 2, 6, 10, 14, and 18 in the first DRS transmission window, and the terminal device performs measurements on the candidate positions of SSB 2, 6, 10, 14, and 18 in the first DRS transmission window, and determines that the first RLM-RS resource includes the candidate position with the best channel quality (or the worst channel quality) in the measurement results of the above candidate positions;

[0104] The terminal device does not detect SSB#2 in the candidate positions corresponding to SSBs 2, 6, 10, 14, and 18 in the first DRS transmission window, but the terminal device can determine the indication information based on auxiliary information such as COT indication information or other SSB detection information to determine that the network device has sent SSB#2 on SSB 14 in the first DRS transmission window, then the terminal device determines that the first RLM-RS resource includes SSB14;

[0105] The terminal device detects SSB#3 on SSB 11 in the candidate positions of SSB 3, 7, 11, 15, and 19 in the first DRS transmission window, and the terminal device determines that the first RLM-RS resource includes SSB11;

[0106] The terminal device performs measurements at candidate positions of SSB 3, 7, 11, 15, and 19 in the first DRS transmission window, and determines that the first RLM-RS resource corresponding to SSB#3 includes the candidate position with the best channel quality in the measurement results of the above candidate positions;

[0107] The terminal device does not detect SSB#3 in the candidate positions corresponding to SSB 3, 7, 11, 15, and 19 in the first DRS transmission window, and the terminal device performs measurements on the candidate positions of SSB 3, 7, 11, 15, and 19 in the first DRS transmission window, and determines that the first RLM-RS resource includes the candidate position with the best channel quality (or the worst channel quality) in the measurement results of the above candidate positions;

[0108] The terminal device does not detect SSB#3 in the candidate positions corresponding to SSB 3, 7, 11, 15, and 19 in the first DRS transmission window, but the terminal device can determine the indication information based on auxiliary information such as COT indication information or other SSB detection information to determine that the network device has sent SSB#3 on SSB 11 in the first DRS transmission window, then the terminal device determines that the first RLM-RS resource includes SSB11.

[0109] For the above embodiments, please refer to Figure 4 , Figure 4 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application, as shown in the figure, the electronic device includes a processor, a memory, a communication interface and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor, and the program includes instructions for executing the following steps;

[0110] Acquire a first radio link monitoring reference signal RLM-RS resource, where the first RLM-RS resource is a resource among M first RLM-RS candidate resources, and K first RLM-RS candidate resources among the M first RLM-RS candidate resources are used to transmit the first RLM-RS, where M and K are positive integers;

[0111] Radio link quality monitoring is performed according to the first RLM-RS resource.

[0112] In line with the above, see Figure 5 , Figure 5 A structural schematic diagram of a link quality monitoring device is provided for an embodiment of the present application.

[0113] like Figure 5 As shown, applied to terminal equipment, the device includes:

[0114] An acquiring unit 501 is configured to acquire a first radio link monitoring reference signal RLM-RS resource, where the first RLM-RS resource is a resource among M first RLM-RS candidate resources, and K first RLM-RS candidate resources among the M first RLM-RS candidate resources are used to transmit a first RLM-RS, where M and K are positive integers;

[0115] The monitoring unit 502 is configured to perform radio link quality monitoring according to the first RLM-RS resource.

[0116] In a possible implementation manner, K first RLM-RS candidate resources among the M first RLM-RS candidate resources are used to transmit the first RLM-RS, including:

[0117] If the number of first RLM-RS candidate resources that obtain channel use rights among the M first RLM-RS candidate resources is greater than or equal to K, then K first RLM-RS candidate resources that obtain channel use rights among the M first RLM-RS candidate resources are used to transmit the first RLM-RS; or,

[0118] The number of first RLM-RS candidate resources that obtain channel use rights among the M first RLM-RS candidate resources is less than K, and the first RLM-RS candidate resources that obtain channel use rights among the M first RLM-RS candidate resources are used to transmit the first RLM-RS.

[0119] In a possible implementation manner, the first RLM-RS resources include K first RLM-RS candidate resources having the best channel quality among the M first RLM-RS candidate resources.

[0120] In a possible implementation manner, the first RLM-RS resource includes a first RLM-RS candidate resource among M first RLM-RS candidate resources, which the terminal device determines to transmit the first RLM-RS.

[0121] In a possible implementation manner, the terminal device determines a first RLM-RS candidate resource for transmitting a first RLM-RS, including:

[0122] The terminal device determines, according to the detection result of the first RLM-RS on the M first RLM-RS candidate resources, a first RLM-RS candidate resource for transmitting the first RLM-RS; and / or,

[0123] The terminal device determines a first RLM-RS candidate resource for transmitting a first RLM-RS according to the first information.

[0124] In a possible implementation manner, the first information includes at least one of the following: channel occupancy time COT indication information and detection information of the second RLM-RS.

[0125] In a possible implementation manner, the first RLM-RS resources include K first RLM-RS candidate resources with the worst channel quality among the M first RLM-RS candidate resources.

[0126] In one possible embodiment, the device is further used for:

[0127] The terminal device determines, based on the detection result of the first RLM-RS on the M first RLM-RS candidate resources, that none of the M first RLM-RS candidate resources transmits the first RLM-RS.

[0128] In a possible implementation, the monitoring unit 502 is specifically configured to:

[0129] In the synchronization evaluation period, it is evaluated whether the downlink radio link quality estimated on the first RLM-RS resource is higher than the synchronization threshold.

[0130] In a possible implementation manner, the M RLM-RS candidate resources are included in the first discovery reference signal DRS transmission window.

[0131] In a possible implementation manner, the synchronization assessment period is an integer multiple of the period of the first DRS transmission window.

[0132] In a possible implementation, the monitoring unit 502 is specifically configured to:

[0133] In the out-of-synchronization evaluation period, it is determined whether the downlink radio link quality estimated on the first RLM-RS resource is lower than the out-of-synchronization threshold.

[0134] In a possible implementation manner, M target RLM-RS candidate resources are included in the second DRS transmission window.

[0135] In a possible implementation manner, the desynchronization assessment period is an integer multiple of the period of the second DRS transmission window.

[0136] In a possible implementation, the first RLM-RS resource includes a synchronization signal block SSB resource and / or a channel state information reference signal CSI-RS resource.

[0137] An embodiment of the present application also provides a computer storage medium, wherein the computer storage medium stores a computer program for electronic data exchange, and the computer program enables a computer to execute part or all of the steps of any link quality monitoring method recorded in the above method embodiments.

[0138] An embodiment of the present application also provides a computer program product, which includes a non-transitory computer-readable storage medium storing a computer program, and the computer program enables a computer to execute part or all of the steps of any link quality monitoring method recorded in the above method embodiments.

[0139] It should be noted that, for the aforementioned method embodiments, for the sake of simplicity, they are all expressed as a series of action combinations, but those skilled in the art should be aware that the present application is not limited by the described order of actions, because according to the present application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present application.

[0140] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0141] In the several embodiments provided in the present application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are only schematic, such as the division of the above-mentioned units, which is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection of devices or units can be electrical or other forms.

[0142] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0143] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0144] If the above-mentioned integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable memory. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a memory, including a number of instructions to enable a computer device (which can be a personal computer, server or network device, etc.) to perform all or part of the steps of the above-mentioned methods of each embodiment of the present application. The aforementioned memory includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, disk or CD-ROM and other media that can store program codes.

[0145] A person skilled in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable memory, and the memory can include: a flash drive, a read-only memory (English: Read-Only Memory, abbreviated as: ROM), a random access memory (English: Random Access Memory, abbreviated as: RAM), a magnetic disk or an optical disk, etc.

[0146] The embodiments of the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for general technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A link quality monitoring method, characterized in that: Applied to a terminal device, the method comprises: Acquire a first radio link monitoring reference signal RLM-RS resource, where the first RLM-RS resource is a resource among M first RLM-RS candidate resources, and K first RLM-RS candidate resources among the M first RLM-RS candidate resources are used to transmit a first RLM-RS, where M and K are positive integers, and K is less than or equal to M; Perform radio link quality monitoring according to the first RLM-RS resource.

2. The method according to claim 1, characterized in that The K first RLM-RS candidate resources among the M first RLM-RS candidate resources are used to transmit the first RLM-RS, including: If the number of first RLM-RS candidate resources that obtain channel use rights among the M first RLM-RS candidate resources is greater than or equal to K, then K first RLM-RS candidate resources that obtain channel use rights among the M first RLM-RS candidate resources are used to transmit the first RLM-RS; or The number of first RLM-RS candidate resources that obtain channel usage rights among the M first RLM-RS candidate resources is less than K, and the first RLM-RS candidate resources that obtain channel usage rights among the M first RLM-RS candidate resources are used to transmit the first RLM-RS.

3. The method according to claim 1 or 2, characterized in that: The first RLM-RS resource includes the first RLM-RS candidate resource determined by the terminal device to transmit the first RLM-RS among the M first RLM-RS candidate resources.

4. The method according to claim 3, characterized in that The terminal device determines a first RLM-RS candidate resource for transmitting the first RLM-RS, including: The terminal device determines, according to the detection result of the first RLM-RS on the M first RLM-RS candidate resources, the first RLM-RS candidate resource for transmitting the first RLM-RS; and / or, The terminal device determines the first RLM-RS candidate resource for transmitting the first RLM-RS according to the first information.

5. The method according to claim 4, characterized in that The first information includes at least one of the following: channel occupancy time COT indication information and detection information of the second RLM-RS.

6. A link quality monitoring device, characterized in that: Applied to a terminal device, the device comprises: an acquiring unit, configured to acquire a first radio link monitoring reference signal RLM-RS resource, where the first RLM-RS resource is a resource among M first RLM-RS candidate resources, and K first RLM-RS candidate resources among the M first RLM-RS candidate resources are used to transmit a first RLM-RS, where M and K are positive integers, and K is less than or equal to M; A monitoring unit is used to monitor the quality of the wireless link according to the first RLM-RS resource.

7. The device according to claim 6, characterized in that The K first RLM-RS candidate resources among the M first RLM-RS candidate resources are used to transmit the first RLM-RS, including: If the number of first RLM-RS candidate resources that obtain channel use rights among the M first RLM-RS candidate resources is greater than or equal to K, then K first RLM-RS candidate resources that obtain channel use rights among the M first RLM-RS candidate resources are used to transmit the first RLM-RS; or The number of first RLM-RS candidate resources that obtain channel usage rights among the M first RLM-RS candidate resources is less than K, and the first RLM-RS candidate resources that obtain channel usage rights among the M first RLM-RS candidate resources are used to transmit the first RLM-RS.

8. The device according to claim 6 or 7, characterized in that The first RLM-RS resource includes the first RLM-RS candidate resource determined by the terminal device to transmit the first RLM-RS among the M first RLM-RS candidate resources.

9. The device according to claim 8, characterized in that The terminal device determines a first RLM-RS candidate resource for transmitting the first RLM-RS, including: The terminal device determines, according to the detection result of the first RLM-RS on the M first RLM-RS candidate resources, the first RLM-RS candidate resource for transmitting the first RLM-RS; and / or, The terminal device determines the first RLM-RS candidate resource for transmitting the first RLM-RS according to the first information.

10. The device according to claim 9, characterized in that The first information includes at least one of the following: channel occupancy time COT indication information and detection information of the second RLM-RS.

11. A terminal device, characterized in that: The method comprises a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor, and the programs include instructions for executing the steps in the method according to any one of claims 1 to 5.

12. A computer-readable storage medium, characterized in that: A computer program for electronic data exchange is stored, wherein the computer program enables a computer to execute the method according to any one of claims 1 to 5.

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