Method and device used for wireless communication

Abstract

Disclosed are a method and apparatus for wireless communication, comprising a first receiver receiving first configuration information, the first configuration information configuring at least one SSB index for wireless link monitoring; the first receiver executes wireless link monitoring according to the RS resource identified by the at least one SSB index; the first processor is used for sending a first type of indication to a higher layer from a layer 1 when the wireless link quality on the RS resource identified by the at least one SSB index is poorer than a first threshold value; the minimum time interval between the consecutive first class of indications depends on whether the at least one SSB index belongs to an active BWP; the method provided by the invention is beneficial to improving performance, reducing resource consumption and reducing power consumption.

Description

Technical Field

[0001] The present application relates to a transmission method and apparatus in a wireless communication system, and relates to wireless link monitoring, in particular to wireless link monitoring performed based on SSB other than an active BWP. Background Art

[0002] In the future, the application scenarios of wireless communication systems will become more and more diversified, and different application scenarios will put forward different performance requirements for the system. In order to meet the different performance requirements of various application scenarios, the 3GPP (3rd Generation Partner Project) RAN (Radio Access Network) #72 plenary meeting decided to study the new radio (NR) (or Fifth Generation, 5G) technology, and the NR WI (Work Item) was passed at the 3GPP RAN #75 plenary meeting, and the standardization work on NR began.

[0003] In communication, both LTE (Long Term Evolution) and 5G NR involve accurate reception of reliable information, optimized energy efficiency, determination of information validity, flexible resource allocation, scalable system structure, efficient non-access layer information processing, low service interruption and drop rate, and support for low power consumption. This is of great significance to the normal communication between base stations and user equipment, the reasonable scheduling of resources, and the balancing of system loads. It can be said to be the cornerstone of high throughput, meeting the communication needs of various services, improving spectrum utilization, and improving service quality. It is indispensable for eMBB (ehanced Mobile BroadBand), URLLC (Ultra Reliable Low Latency Communication) and eMTC (enhanced Machine Type Communication). At the same time, in IIoT (Industrial Internet of Things, Industrial Internet of Things, V2X (Vehicular to X, vehicle-mounted communication), device-to-device communication, unlicensed spectrum communication, user communication quality monitoring, network planning optimization, NTN (Non Territerial Network, non-terrestrial network communication), TN (Territerial Network, terrestrial network communication), dual connectivity (Dual connectivity) system, wireless resource management and multi-antenna codebook selection, signaling design, neighbor management, business management, beamforming, there are extensive needs, information transmission methods are divided into broadcast and unicast, both transmission methods are essential for 5G systems, because they are very helpful to meet the above requirements. The UE can be connected to the network directly or through a relay.

[0004] As the scenarios and complexity of the system continue to increase, higher requirements are put forward for reducing the interruption rate, reducing latency, enhancing reliability, enhancing system stability, business flexibility, and power saving. At the same time, the compatibility between different versions of different systems needs to be considered during system design. At the same time, the types of services supported by 5G systems are becoming more and more abundant, and these new services have also brought corresponding challenges to the system.

[0005] The 3GPP standardization organization has done relevant standardization work for 5G and formed a series of standards. The standard contents can be referenced:

[0006] https: / / www.3gpp.org / ftp / Specs / archive / 38_series / 38.331 / 38331-h10.zip

[0007] https: / / www.3gpp.org / ftp / Specs / archive / 38_series / 38.321 / 38321-h10.zip

[0008] https: / / www.3gpp.org / ftp / Specs / archive / 38_series / 38.202 / 38202-h10.zip

[0009] https: / / www.3gpp.org / ftp / Specs / archive / 38_series / 38.213 / 38213-h10.zip

[0010] https: / / www.3gpp.org / ftp / Specs / archive / 38_series / 38.133 / 38133-h10.zip Summary of the invention

[0011] In wireless communication systems, wireless link monitoring is a very important function. In the scenario of wireless link monitoring, how to determine the minimum time interval between consecutive first-class indications is a problem that needs to be solved. The researchers found that wireless link monitoring includes sending a first-class indication from layer 1 to a higher layer whenever the wireless link quality on all RS (ReferenceSignal) resources identified by at least one SSB index is worse than a first threshold. When the higher layer receives multiple consecutive first-class indications, it is considered that a problem or failure has occurred. However, the minimum time interval for sending consecutive first-class indications needs to be clear, because this may affect the performance of wireless link monitoring and the signaling load. Therefore, the minimum time interval for sending consecutive first-class indications cannot be too small. If it is too small, it may be inaccurate, and it may also bring too much signaling load, which may cause unexpected failures. The researchers found that in the prior art, wireless link monitoring can only be performed based on SSBs within the active BWP (bandwidth part), and SSBs can only be used for wireless link monitoring when the active BWP is the initial BWP. Using SSBs outside the active BWP for wireless link monitoring is a new problem to be solved. The researchers found that wireless link monitoring based on SSBs other than active BWPs may bring some benefits, such as reducing system overhead and not sending SSBs within active BWPs. The researchers also found that for scenarios where wireless link monitoring based on SSBs other than active BWPs is required within a time window, the minimum time interval between consecutive first-class indications needs to be longer.

[0012] In view of the above-mentioned problems, this application provides a solution.

[0013] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of any node of the present application can be applied to any other node. In the absence of conflict, the embodiments and features in the embodiments of the present application can be arbitrarily combined with each other. In addition, the method proposed in the present application can also be used to solve other problems in the communication system.

[0014] As an embodiment, the interpretation of the terminology in the present application refers to the definition of the TS38 series of specification protocols of 3GPP.

[0015] As an example, the interpretation of the terms in the present application refers to the definitions of the TS37 series of specification protocols of 3GPP.

[0016] The present application discloses a method in a first node used for wireless communication, comprising:

[0017] Receiving first configuration information, wherein the first configuration information is configured for at least one SSB index for wireless link monitoring;

[0018] The first receiver performs radio link monitoring according to the RS resources identified by the at least one SSB index;

[0019] Whenever the radio link quality on the RS resource identified by the at least one SSB index is worse than a first threshold, a first type of indication is sent by layer 1 to a higher layer; the minimum time interval between consecutive first type of indications depends on whether the at least one SSB index belongs to an active BWP;

[0020] Among them, compared with when the at least one SSB index belongs to the active BWP, the minimum time interval between the consecutive first-type indications is longer when the at least one SSB index does not belong to the active BWP; the minimum time interval between the consecutive first-type indications is not less than the shortest period of the RS resources identified by the at least one SSB index; the behavior of performing wireless link monitoring according to the RS resources identified by the at least one SSB index depends on whether the at least one SSB index belongs to the active BWP; when the at least one SSB index does not belong to the active BWP, the behavior of performing wireless link monitoring according to the RS resources identified by the at least one SSB index is performed within a first time window set, and the period of the first time window set is greater than the shortest period of the RS resources identified by the at least one SSB index.

[0021] As an embodiment, the problems to be solved by the present application include: how to determine the minimum time interval between consecutive first-type indications; when the behavior performs wireless link monitoring within the first time window set according to the RS resources identified by the at least one SSB index, how to determine the minimum time interval between consecutive first-type indications; what is the relationship between the minimum time interval between consecutive first-type indications and whether the at least one SSB index belongs to an active BWP.

[0022] As an embodiment, the benefits of the above method include: more accurate determination of the minimum time interval between consecutive first-type indications; better support for wireless link monitoring based on SSBs other than active BWP, more system resource saving, and greater flexibility.

[0023] Specifically, according to one aspect of the present application, the behavior of performing wireless link monitoring according to the RS resources identified by the at least one SSB index is for the PCell or for the wireless link monitoring of the active BWP.

[0024] Specifically, according to one aspect of the present application, when the at least one SSB index does not belong to the active BWP, the first configuration information includes the first time window set; when the at least one SSB index belongs to the active BWP, the first configuration information does not include the first time window set.

[0025] Specifically, according to one aspect of the present application, when the at least one SSB index does not belong to the active BWP, the minimum time interval between consecutive first-type indications depends on the product of a first coefficient and the shortest period of the RS resource identified by the at least one SSB index; the first coefficient is greater than 1;

[0026] The first node is not configured with DRX (Discontinuous Reception).

[0027] Specifically, according to one aspect of the present application, the period of the first time window set depends on the first coefficient.

[0028] Specifically, according to one aspect of the present application, when the at least one SSB index does not belong to the active BWP, the minimum time interval between consecutive first-type indications depends on the period of the first time window set; when the at least one SSB index belongs to the active BWP, the minimum time interval between consecutive first-type indications depends on the shortest period of the RS resource identified by the at least one SSB index.

[0029] Specifically, according to one aspect of the present application, when the at least one SSB index does not belong to the active BWP, the minimum time interval between consecutive first-type indications depends on the sum of a second coefficient and the shortest period of the RS resource identified by the at least one SSB index; the second coefficient is a positive number;

[0030] The first node is not configured with DRX.

[0031] Specifically, according to one aspect of the present application, the first configuration information explicitly indicates the frequency information of the at least one SSB index only when the at least one SSB index does not belong to the active BWP.

[0032] Specifically, according to one aspect of the present application, when the at least one SSB index does not belong to the active BWP, the first node is not configured with the CSI-RS (Channel state Information-Reference Signal) of the active BWP for wireless link monitoring, NCD-SSB (None Cell Defining Synchronization Signal Block) and CD-SSB (Cell Defining Synchronization Signal Block).

[0033] Specifically, according to one aspect of the present application, the first transmitter sends first capability information before receiving the first configuration information, and the first capability information indicates that the first node does not support wireless link monitoring on RS resources identified by SSB indexes other than the active BWP without interruption.

[0034] Specifically, according to one aspect of the present application, the first node is an Internet of Things terminal.

[0035] Specifically, according to one aspect of the present application, the first node is a user equipment.

[0036] Specifically, according to one aspect of the present application, the first node is a relay.

[0037] Specifically, according to one aspect of the present application, the first node is an access network device.

[0038] Specifically, according to one aspect of the present application, the first node is a vehicle-mounted terminal.

[0039] Specifically, according to one aspect of the present application, the first node is an aircraft.

[0040] Specifically, according to one aspect of the present application, the first node is a mobile phone.

[0041] The present application discloses a first node used for wireless communication, comprising:

[0042] A first receiver receives first configuration information, wherein the first configuration information is configured for at least one SSB index for wireless link monitoring;

[0043] The first receiver performs radio link monitoring according to the RS resources identified by the at least one SSB index;

[0044] A first processor, whenever the quality of the radio link on the RS resource identified by the at least one SSB index is worse than a first threshold, sends a first type of indication from layer 1 to a higher layer; the minimum time interval between consecutive first type of indications depends on whether the at least one SSB index belongs to an active BWP;

[0045] Among them, compared with when the at least one SSB index belongs to the active BWP, the minimum time interval between the consecutive first-type indications is longer when the at least one SSB index does not belong to the active BWP; the minimum time interval between the consecutive first-type indications is not less than the shortest period of the RS resources identified by the at least one SSB index; the behavior of performing wireless link monitoring according to the RS resources identified by the at least one SSB index depends on whether the at least one SSB index belongs to the active BWP; when the at least one SSB index does not belong to the active BWP, the behavior of performing wireless link monitoring according to the RS resources identified by the at least one SSB index is performed within a first time window set, and the period of the first time window set is greater than the shortest period of the RS resources identified by the at least one SSB index.

[0046] As an embodiment, compared with the traditional solution, this application has the following advantages:

[0047] To save resources and network power, the active BWP may not be configured with SSB for wireless link monitoring, nor may it be configured with CSI-RS for wireless link monitoring.

[0048] The performance of wireless link monitoring is more accurate and reliable.

[0049] The system is more flexible and can support different types of UEs, including UEs that need to be interrupted to measure SSBs outside the active BWP to perform wireless link monitoring; the network can also support such UEs through the first time collection.

[0050] Unreliable measurements can be reduced, and thus failures caused by inadequate radio links can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0052] Figure 1A flowchart showing receiving first configuration information according to an embodiment of the present application, performing radio link monitoring according to an RS resource identified by at least one SSB index, and sending a first type of indication from layer 1 to a higher layer whenever the radio link quality on the RS resource identified by at least one SSB index is worse than a first threshold;

[0053] Figure 2 A schematic diagram of a network architecture according to an embodiment of the present application is shown;

[0054] Figure 3 A schematic diagram showing an embodiment of a wireless protocol architecture of a user plane and a control plane according to an embodiment of the present application;

[0055] Figure 4 A schematic diagram showing a first communication device and a second communication device according to an embodiment of the present application is shown;

[0056] Figure 5 A flow chart showing wireless signal transmission according to an embodiment of the present application is shown;

[0057] Figure 6 A schematic diagram of SSB according to an embodiment of the present application is shown;

[0058] Figure 7 A schematic diagram of a BWP according to an embodiment of the present application is shown;

[0059] Figure 8 A schematic diagram showing a minimum time interval between consecutive first-category indications according to an embodiment of the present application;

[0060] Fig. 9 A schematic diagram showing that the minimum time interval between consecutive first-type indications according to an embodiment of the present application depends on the product of a first coefficient and the shortest period of an RS resource identified by at least one SSB index;

[0061] Fig.10 A schematic diagram showing that the minimum time interval between consecutive first-category indications depends on the period of the first time window set according to an embodiment of the present application;

[0062] Fig.11 A schematic diagram showing that the minimum time interval between consecutive first-type indications according to an embodiment of the present application depends on the sum of the second coefficient and the shortest period of the RS resource identified by at least one SSB index;

[0063] Fig.12 The following is a schematic diagram illustrating a processing device used in a first node according to an embodiment of the present application.

[0064] Implementation

[0065] The technical solution of the present application will be further described in detail below in conjunction with the accompanying drawings. It should be noted that, unless there is a conflict, the embodiments in the present application and the features in the embodiments can be combined with each other arbitrarily.

[0066] Example 1

[0067] Embodiment 1 illustrates a flowchart of receiving first configuration information according to an embodiment of the present application, performing wireless link monitoring according to the RS resource identified by at least one SSB index, and sending a first type of indication from layer 1 to a higher layer whenever the wireless link quality on the RS resource identified by at least one SSB index is worse than a first threshold, as shown in the attached Figure 1 Attached Figure 1 In the figure, each box represents a step. It should be emphasized that the order of the boxes in the figure does not represent the temporal relationship between the steps represented.

[0068] In Embodiment 1, the first node in the present application receives first configuration information in step 101; performs radio link monitoring according to the RS resource identified by at least one SSB index in step 102; and sends a first type of indication from layer 1 to a higher layer in step 103 whenever the radio link quality on the RS resource identified by at least one SSB index is worse than a first threshold;

[0069] Among them, the first configuration information is configured for at least one SSB index for wireless link monitoring; the minimum time interval between consecutive first-type indications depends on whether the at least one SSB index belongs to an active BWP; compared with when the at least one SSB index belongs to the active BWP, the minimum time interval between the consecutive first-type indications is longer when the at least one SSB index does not belong to the active BWP; the minimum time interval between the consecutive first-type indications is not less than the shortest period of the RS resources identified by the at least one SSB index; the behavior performs wireless link monitoring according to the RS resources identified by the at least one SSB index depends on whether the at least one SSB index belongs to the active BWP; when the at least one SSB index does not belong to the active BWP, the behavior performs wireless link monitoring according to the RS resources identified by the at least one SSB index within a first time window set, and the period of the first time window set is greater than the shortest period of the RS resources identified by the at least one SSB index.

[0070] As an embodiment, the first node is a UE (User Equipment).

[0071] As an embodiment, the first node is in an RRC connected state.

[0072] As an embodiment, the first node is not a RedCap (Reduced Capability) UE.

[0073] As an embodiment, the first node is not indicated as a RedCap UE.

[0074] As an embodiment, the first node does not use a shared frequency channel for access.

[0075] As an example, the interpretation of the terms in the present application refers to the definitions of the TS38 series of specification protocols of 3GPP.

[0076] As an embodiment, any parameter not explicitly described in the present application may be indicated by the network or configured by the network or pre-configured.

[0077] As an embodiment, any parameter not explicitly described in the present application can be determined by the first node according to its internal algorithm when not indicated by the network.

[0078] As an embodiment, any parameter in the present application may be initialized to 0 when not indicated by the network.

[0079] As an embodiment, any parameter in the present application may be set to a random number when not indicated by the network.

[0080] As an embodiment, any parameter in the present application can be selected based on simulation results when not indicated by the network.

[0081] As an embodiment, the serving cell refers to the cell where the UE resides. Performing a cell search includes the UE searching for a suitable cell of the selected PLMN (Public Land Mobile Network) or SNPN (Stand-alone Non-Public Network), selecting the suitable cell to provide available services, and monitoring the control channel of the suitable cell. This process is defined as residing on the cell; that is, a residing cell is the serving cell of the UE relative to the UE. Residing on a cell in the RRC idle state or the RRC inactive state has the following benefits: it enables the UE to receive system information from the PLMN or SNPN; after registration, if the UE wishes to establish an RRC connection or continue a suspended RRC connection, the UE can do so by performing initial access on the control channel of the residing cell; the network can page the UE; and the UE can receive ETWS (Earthquake and Tsunami Warning System) and CMAS (Commercial Mobile Alert System) notifications.

[0082] As an embodiment, for a UE in an RRC connected state that is not configured with CA / DC (carrier aggregation / dual connectivity), there is only one service cell including a primary cell. For a UE in an RRC connected state that is configured with CA / DC (carrier aggregation / dual connectivity), the service cell is used to indicate a set of cells including a special cell (SpCell) and all cells from the small cell. The primary cell (Primary Cell) is an MCG (Master Cell Group) cell that operates on the main frequency. The UE performs an initial connection establishment process or initiates connection reconstruction on the primary cell. For dual connection operations, the special cell refers to the PCell (Primary Cell) of the MCG or the PSCell (Primary SCGCell) of the SCG (Secondary Cell Group); if it is not a dual connection operation, the special cell refers to the PCell.

[0083] As an embodiment, the operating frequency of the SCell (Secondary Cell) is a secondary frequency.

[0084] As an example, individual contents of an information element are referred to as fields.

[0085] As an embodiment, MR-DC (Multi-Radio Dual Connectivity) refers to dual connectivity between E-UTRA and NR nodes, or dual connectivity between two NR nodes.

[0086] As an embodiment, in MR-DC, the wireless access node that provides the control plane connection to the core network is the master node, which may be a master eNB, a master ng-eNB, or a master gNB.

[0087] As an embodiment, MCG refers to a group of service cells associated with a master node in MR-DC, including SpCells, and may also, optionally, include one or more SCells.

[0088] As an embodiment, PCell is the SpCell of MCG.

[0089] As an embodiment, the PSCell is the SpCell of the SCG.

[0090] As an embodiment, in MR-DC, the control plane connection to the core network is not provided, and the radio access node that provides additional resources to the UE is a slave node. The slave node can be an en-gNB, a slave ng-eNB or a slave gNB.

[0091] As an embodiment, in MR-DC, a group of service cells associated with a slave node is a SCG (secondary cell group), including a SpCell and, optionally, one or more SCells.

[0092] As an embodiment, the first node is configured with at least an MCG, and the MCG configured with the first node includes at least one SCell.

[0093] As an embodiment, the first node is configured with MCG and SCG.

[0094] As a sub-embodiment of this embodiment, the MCG configured by the first node includes at least one SCell.

[0095] As a sub-embodiment of this embodiment, the SCG configured by the first node includes at least one SCell.

[0096] As an embodiment, the first node is only configured with MCG but not with SCG.

[0097] As a sub-embodiment of this embodiment, the method proposed in the present application can also achieve beneficial effects in a scenario where SCG is not configured.

[0098] As an embodiment, the MCG of the first node includes only the PCell but not the SCell.

[0099] As a sub-embodiment of this embodiment, the method proposed in the present application can also achieve beneficial effects in a scenario where SCell is not configured.

[0100] As an embodiment, the first node does not use CA.

[0101] As a sub-embodiment of this embodiment, the method proposed in this application can also achieve beneficial effects in a scenario where CA is not used.

[0102] As an embodiment, SSB is equivalent to synchronization signal and PBCH block, SS / PBCH block, SS-Block.

[0103] As an embodiment, the first configuration information is an information block of an RRC message.

[0104] As an embodiment, the first configuration information includes an RRC message.

[0105] As an embodiment, the first configuration information includes configuration related to a reference signal.

[0106] As an embodiment, the first configuration information is configured to the first node via unicast.

[0107] As an embodiment, the first configuration information is generated by the RRC layer.

[0108] As an embodiment, the first configuration information is or includes radioLinkMonitoringConfig.

[0109] As an embodiment, the RadioLinkMonitoringRS included in the first configuration information is used to configure the at least one SSB index.

[0110] As an embodiment, the RadioLinkMonitoringRS included in the first configuration information is used to configure at least a part of the SSB index of the at least one SSB index.

[0111] As an embodiment, the BeamLinkMonitoringRS included in the first configuration information is used to configure at least a part of the index of the at least one SSB index.

[0112] As an embodiment, the detectionResource included in the first configuration information indicates the at least one SSB index.

[0113] As a sub-embodiment of this embodiment, the first configuration information includes a list, and each item in the list includes a detectionResource.

[0114] As an embodiment, the ssb-index included in the first configuration information indicates the at least one SSB index.

[0115] As an embodiment, the first configuration information indicates that the purpose of the at least one SSB index is wireless link monitoring.

[0116] As an embodiment, the wireless link monitoring includes wireless link failure.

[0117] As an embodiment, the wireless link monitoring includes beam failure detection.

[0118] As an embodiment, the wireless link monitoring includes wireless link monitoring and beam failure detection.

[0119] As an embodiment, the wireless link monitoring includes beam link monitoring.

[0120] As an embodiment, each SSB index in the at least one SSB index is used to identify an SSB.

[0121] As an embodiment, the network indicates which SSB index identifies the SSB received by the first node.

[0122] As an embodiment, the system information associated with the SSB received by the first node indicates which SSB index identifies this SSB.

[0123] As an embodiment, the RS resource identified by the at least one SSB index is an RLM-RS resource.

[0124] As an embodiment, the at least one SSB index is a q0 set.

[0125] As an embodiment, the RS resource identified by the at least one SSB index is the q0 set.

[0126] As an embodiment, the first configuration information configures the purpose of the at least one SSB index.

[0127] As an embodiment, the first configuration information indicates the purpose of the at least one SSB index.

[0128] As an embodiment, the first configuration information configures the period of the SSB identified by each SSB index in the at least one SSB index.

[0129] As an embodiment, the first configuration information is for the at least one SSB index configured for the active BWP.

[0130] As an embodiment, the RRC message including the first configuration information is RRCReconfiguration.

[0131] As an embodiment, the RRC message including the first configuration information is RRCConnectionReconfiguration.

[0132] As an embodiment, the RRC message including the first configuration information is RRCReconfigurationNR.

[0133] As an embodiment, the RRC message including the first configuration information is RRCReconfigurationENR.

[0134] As an embodiment, the configuration information of a BWP configured by the RRC message including the first configuration information includes the first configuration information.

[0135] As a sub-embodiment of this embodiment, the one BWP configured by the RRC message including the first configuration information is the active BWP.

[0136] As an embodiment, the RRC message including the first configuration information configures an SSB index for radio link monitoring for each BWP.

[0137] As an embodiment, a UE has only one active BWP.

[0138] As an embodiment, the current BWP of a UE is the active BWP.

[0139] As an embodiment, after accessing the network, which BWP is configured as the active BWP is based on a network algorithm, for example, UEs are allocated according to the load balancing of each BWP, and a suitable BWP is selected according to the traffic volume of the service to be transmitted by the UE. Configuring a BWP that is too wide wastes the energy of the UE, and configuring a BWP that is too narrow cannot meet the service needs of the UE.

[0140] As an embodiment, for a BWP, a number of SSB indexes are configured based on network implementation, for example, according to how many SSBs are transmitted. When the number of transmitted SSBs is large enough, at least one is selected according to a fixed algorithm or randomly.

[0141] As an embodiment, for a BWP, how many SSB indexes are configured is based on the carrier frequency. For FR1 (frequency range 1) below 3 GHz, at most 2 SSB indexes can be configured for wireless link monitoring; for FR1 above 3 GHz, at most 4 SSB indexes can be configured for wireless link monitoring; for FR2 (frequency range 2), at most 8 SSB indexes can be configured for wireless link monitoring.

[0142] As an embodiment, the RS resource is a resource used for RS.

[0143] As an embodiment, the RS resource is a resource reserved for the RS.

[0144] As an embodiment, the RS resource is a resource allocated to the RS.

[0145] As an embodiment, the RS resource is a resource for transmitting the RS.

[0146] As an embodiment, performing wireless link monitoring according to the RS resources identified by the at least one SSB index includes: performing wireless link monitoring on all RS resources identified by the at least one SSB index.

[0147] As an embodiment, performing wireless link monitoring according to the RS resources identified by the at least one SSB index includes: performing measurements on the RS resources identified by the at least one SSB index, and determining the wireless link quality according to the measurement results.

[0148] As an embodiment, the measurement result obtained by measuring on the RS resource includes RSRP (Reference Signal Receiving Power).

[0149] As an embodiment, the measurement result obtained by measuring on the RS resource includes RSRQ (Reference Signal Receiving Quality).

[0150] As an embodiment, the measurement result obtained by measuring on the RS resources includes SNR (SIGNAL-NOISE RATIO, signal-to-noise ratio).

[0151] As an embodiment, determining the quality of the wireless link according to the measurement result includes: judging whether the measurement result is higher than a specific threshold.

[0152] As an embodiment, determining the quality of the wireless link according to the measurement result includes: determining whether the measurement result is lower than a specific threshold.

[0153] As an embodiment, determining the quality of the wireless link according to the measurement result includes: judging what the quality of the wireless link according to the measurement result is, or whether it is worse than a first threshold.

[0154] As an embodiment, determining the quality of the wireless link according to the measurement result includes: estimating the receiving performance according to the measurement result, for example, estimating the quality of the wireless link by means of table mapping.

[0155] As a sub-embodiment of this embodiment, the estimated radio link quality is the radio link quality on a fixedly configured PDCCH.

[0156] As a sub-embodiment of this embodiment, the table used for estimation can be obtained through simulation or existing network measurement.

[0157] As an embodiment, the wireless link quality includes BLER (block error ratio, block error rate).

[0158] As a sub-embodiment of this embodiment, the estimated radio link quality is a block error rate on a fixedly configured PDCCH.

[0159] As an embodiment, the estimated radio link quality is a block error rate on a fixedly configured PDSCH.

[0160] As an embodiment, the estimated radio link quality is a block error rate on a fixedly configured PBCH.

[0161] As an embodiment, the fixed configuration for the channel to be estimated is prior art.

[0162] As an embodiment, the wireless link quality includes a BLER (block error ratio) on a specifically configured channel.

[0163] As an embodiment, the wireless link quality includes a BLER (block error ratio) on a specifically configured PDCCH channel.

[0164] As an embodiment, the meaning of a fixedly configured PDCCH includes: assuming that the channel quality of the PDCCH is the measurement result on the RS resource identified by the at least one SSB index, or assuming that the PDCCH is sent on a channel of the measurement result quality.

[0165] As an embodiment, the meaning of a fixedly configured PDCCH includes: the configuration of the PDCCH, such as the coding rate and the code block size, is the fixedly configured one.

[0166] As an embodiment, determining the quality of the wireless link according to the measurement result includes: judging whether the estimated BLER is lower than a first threshold.

[0167] As an embodiment, the first threshold is equal to 2%.

[0168] As an embodiment, the first threshold is equal to 10%.

[0169] As an embodiment, the first threshold is fixed.

[0170] As an embodiment, the first threshold is configurable.

[0171] As an embodiment, the first threshold depends on the wireless access technology.

[0172] As an embodiment, the first threshold value depends on the purpose of wireless link monitoring.

[0173] As an embodiment, when the radio link monitoring is for RLF (radio link failure), the first threshold is 10%.

[0174] As an embodiment, when the wireless link monitoring is for beam management, the first threshold is 5% or is configurable.

[0175] As an embodiment, determining the wireless link quality based on the measurement results includes: performing measurements on each RS resource identified by each SSB index in the at least one SSB index, and estimating the wireless link quality on each RS resource identified by each SSB index in the at least one SSB index based on the measurement results.

[0176] As an embodiment, determining the wireless link quality based on the measurement results includes: performing measurements on the RS resources identified by each SSB index in the at least one SSB index, and estimating the wireless link quality respectively based on the measurement results on the RS resources identified by each SSB index in the at least one SSB index.

[0177] As an embodiment, determining the quality of the wireless link based on the measurement results includes: performing measurements on the RS resources identified by each SSB index in the at least one SSB index, and estimating a wireless link quality based on a combination of the measurement results on the RS resources identified by each SSB index in the at least one SSB index, such as an average of the measurement results.

[0178] As an embodiment, determining the wireless link quality based on the measurement results includes: performing measurements on all RS resources identified by each SSB index in the at least one SSB index, and estimating a wireless link quality based on the measurement results on all RS resources identified by each SSB index in the at least one SSB index.

[0179] As an embodiment, the resources occupied, allocated or configured by the SSB identified by the at least one SSB index are RS resources identified by the at least one SSB index.

[0180] As an embodiment, the sentence "whenever the wireless link quality on the RS resource identified by the at least one SSB index is worse than the first threshold" means: performing measurement on each RS resource identified by each SSB index in the at least one SSB index, and estimating the wireless link quality on each RS resource identified by each SSB index in the at least one SSB index according to the measurement results; and "whenever the wireless link quality on the RS resource identified by the at least one SSB index is worse than the first threshold" means that all wireless link qualities on all RS resources identified by the at least one SSB index are worse than the first threshold.

[0181] As an embodiment, the sentence "whenever the wireless link quality on the RS resource identified by the at least one SSB index is worse than the first threshold" includes: performing measurement on the RS resource identified by each SSB index in the at least one SSB index, and estimating the wireless link quality respectively according to the measurement results on the RS resource identified by each SSB index in the at least one SSB index; and "whenever the wireless link quality on the RS resource identified by the at least one SSB index is worse than the first threshold" means that all wireless link qualities on all RS resources identified by the at least one SSB index are worse than the first threshold.

[0182] As an embodiment, the sentence "whenever the wireless link quality on the RS resource identified by the at least one SSB index is worse than the first threshold" means: performing measurements on the RS resource identified by each SSB index in the at least one SSB index, and estimating a wireless link quality based on the combination of the measurement results on the RS resource identified by each SSB index in the at least one SSB index, such as the average of the measurement results, such as the weighted average, such as taking the maximum value, such as taking the minimum value, such as removing the maximum value and then averaging; whenever the wireless link quality on the RS resource identified by the at least one SSB index is worse than the first threshold means that the wireless link quality estimated according to the combination of the measurement results on the RS resource identified by each SSB index in the at least one SSB index is worse than the first threshold.

[0183] As an embodiment, the sentence "whenever the wireless link quality on the RS resources identified by the at least one SSB index is worse than the first threshold" means that: performing measurements on all RS resources identified by each SSB index in the at least one SSB index, and estimating a wireless link quality based on the measurement results on all RS resources identified by each SSB index in the at least one SSB index; "whenever the wireless link quality on the RS resources identified by the at least one SSB index is worse than the first threshold" means that the wireless link quality estimated based on the measurement results on all RS resources identified by each SSB index in the at least one SSB index is worse than the first threshold.

[0184] As a sub-embodiment of this embodiment, when the at least one SSB index belongs to the active BWP, the RS resources identified by the at least one SSB index are not restricted by the first time window; when the at least one SSB index does not belong to the active BWP, the RS resources identified by the at least one SSB index are RS resources within the first time window set.

[0185] As an embodiment, the sentence "whenever the wireless link quality on the RS resources identified by the at least one SSB index is worse than the first threshold" means that when the at least one SSB index belongs to the active BWP, measurement is performed on all RS resources identified by each SSB index in the at least one SSB index, and a wireless link quality is estimated based on the measurement results on all RS resources identified by each SSB index in the at least one SSB index; whenever the wireless link quality on the RS resources identified by the at least one SSB index is worse than the first threshold means that the wireless link quality estimated based on the measurement results on all RS resources identified by each SSB index in the at least one SSB index is worse than the first threshold.

[0186] As an embodiment, the sentence "whenever the wireless link quality on the RS resources identified by the at least one SSB index is worse than the first threshold" means that when the at least one SSB index does not belong to the active BWP, measurement is performed on the RS resources within the first time window set identified by each SSB index in the at least one SSB index, and a wireless link quality is estimated based on the measurement results on the RS resources within the first time window set identified by each SSB index in the at least one SSB index; whenever the wireless link quality on the RS resources identified by the at least one SSB index is worse than the first threshold means that the wireless link quality estimated based on the measurement results on the RS resources within the first time window set identified by each SSB index in the at least one SSB index is worse than the first threshold.

[0187] As an embodiment, the sentence "Whenever the wireless link quality on the RS resources identified by the at least one SSB index is worse than the first threshold" means or includes: whenever the wireless link quality on all RS resources identified by the at least one SSB index is worse than the first threshold.

[0188] As a sub-embodiment of this embodiment, when the at least one SSB index belongs to the active BWP, all RS resources identified by the at least one SSB index are not restricted by the first time window set.

[0189] As a sub-embodiment of this embodiment, when the at least one SSB index does not belong to the active BWP, all the RS resources identified by the at least one SSB index are RS resources within the first time window set.

[0190] As an embodiment, the layer 1 is a physical layer.

[0191] As an embodiment, the layer 1 is the PHY sublayer in Embodiment 3.

[0192] As an embodiment, the higher layer is a higher layer of layer 1.

[0193] As an embodiment, the higher layer includes one of a MAC layer, an RRC layer, and a NAS layer.

[0194] As an embodiment, the higher layer is the RRC layer.

[0195] As an embodiment, the first type of indication is or includes an out-of-sync indication.

[0196] As an embodiment, the first type of indication is or includes a beam failure indication for a TRP.

[0197] As an embodiment, the first type of indication is or includes a beam failure indication.

[0198] As an embodiment, the first type of indication is or includes a beam failure instance indication.

[0199] As an embodiment, when the first type of indication is out-of-sync, the higher layer is the RRC layer.

[0200] As an embodiment, when the first type of indication is a beam failure instance indication, the higher layer is a MAC layer.

[0201] As an embodiment, the continuous first-category indications are two adjacent first-category indications without any other indications between them.

[0202] As an embodiment, the continuous first-type indications are two adjacent out-of-sync indications without including an in-sync indication between them.

[0203] As an embodiment, the continuous first type of indication is that between two adjacent beam failure indications, it is not found that the wireless link quality on all RS resources identified by the at least one SSB index is not worse than the first threshold.

[0204] As an embodiment, the continuous first type indication is that between two adjacent beam failure instance indications, it is not found that the wireless link quality on all RS resources identified by the at least one SSB index is not worse than the first threshold.

[0205] As an embodiment, the continuous first-type indication means that between two adjacent first-type indications, it is not found that the wireless link quality on all RS resources identified by the at least one SSB index is not worse than the first threshold.

[0206] As an embodiment, the continuous first-type indication is that between two adjacent out-of-sync indications, it is not found that the wireless link quality on all RS resources identified by the at least one SSB index is not worse than the first threshold.

[0207] As an embodiment, the consecutive first-category indications are two first-category indications that are closest in time.

[0208] As a sub-embodiment of this embodiment, the first type of indication is for the same cell, and the first type of indication is out-of-sync.

[0209] As a sub-embodiment of this embodiment, the first type of indication is for the same beam, and the first type of indication is a beam failure instance indication.

[0210] As a sub-embodiment of this embodiment, the first type of indication is for the same RS set, and the first type of indication is a beam failure instance indication.

[0211] As a sub-embodiment of this embodiment, the first type of indication is for the same RS set used for beam failure detection, and the first type of indication is a beam failure instance indication.

[0212] As an embodiment, the first type of indication is for the at least one SSB index.

[0213] As an embodiment, the at least one SSB index belonging to the active BWP means that the SSB identified by the at least one SSB index belongs to the active BWP.

[0214] As an embodiment, the at least one SSB index belonging to the active BWP means that the SSB identified by the at least one SSB index belongs to the active BWP in the frequency domain.

[0215] As an embodiment, whether the at least one SSB index belongs to the active BWP or does not belong to the active BWP does not mean whether the at least one SSB index is for wireless link monitoring of the active BWP.

[0216] As an embodiment, the at least one SSB index not belonging to the active BWP means that the at least one SSB index belongs outside the active BWP.

[0217] As an embodiment, the at least one SSB index not belonging to the active BWP means that the at least one SSB index is outside the active BWP.

[0218] As an embodiment, the at least one SSB index not belonging to the active BWP means that none of the SSBs identified by the at least one SSB index belongs to the active BWP.

[0219] As an embodiment, the at least one SSB index not belonging to the active BWP means that the SSBs identified by the at least one SSB index are all outside the active BWP.

[0220] As an embodiment, the at least one SSB index not belonging to the active BWP means that the SSB identified by the at least one SSB index does not belong to the active BWP in the frequency domain.

[0221] As an embodiment, the at least one SSB index not belonging to the active BWP means that the SSB identified by the at least one SSB index is outside the active BWP in the frequency domain.

[0222] As an embodiment, the at least one SSB index either all belongs to the active BWP or none of the SSB indexes belongs to the active BWP.

[0223] As an embodiment, the sentence that the minimum time interval between the consecutive first-category indications is longer when the at least one SSB index does not belong to the active BWP than when the at least one SSB index belongs to the active BWP includes: regardless of whether the at least one SSB index belongs to the active BWP or not, the minimum time interval between the consecutive first-category indications needs to be defined or required.

[0224] As an embodiment, the sentence that the minimum time interval between the consecutive first-category indications is longer than when the at least one SSB index belongs to the active BWP, when the at least one SSB index does not belong to the active BWP includes: whether the at least one SSB index belongs to the active BWP or not determines the minimum time interval between the consecutive first-category indications.

[0225] As an embodiment, the sentence that the minimum time interval between the consecutive first-category indications is longer than when the at least one SSB index belongs to the active BWP, when the at least one SSB index does not belong to the active BWP, includes: when the at least one SSB index belongs to the active BWP, the minimum time interval between the consecutive first-category indications is a first time length, and when the at least one SSB index does not belong to the active BWP, the minimum time interval between the consecutive first-category indications is a second time length, and the second time length is greater than the first time length.

[0226] As a sub-embodiment of this embodiment, the second time length needs to be greater than the first time length.

[0227] As an embodiment, the meaning that the minimum time interval between the consecutive first-type indications is not less than the shortest period of the RS resources identified by the at least one SSB index includes: the minimum time interval between the consecutive first-type indications is greater than 0.

[0228] As an embodiment, the shortest period of the RS resources identified by the at least one SSB index means that the RS resources identified by each SSB index in the at least one SSB index are periodic.

[0229] As an embodiment, the shortest period of the RS resources identified by the at least one SSB index means that the RS resources identified by each SSB index in the at least one SSB index are periodic.

[0230] As an embodiment, a person skilled in the art should understand that, unless a mechanism is specifically specified, the period for the first node to obtain the RS resources identified by the SSB index is prior art, such as determined by network indication, such as by receiving multiple RS resources identified by the SSB index.

[0231] As an embodiment, the shortest period of the RS resource identified by the at least one SSB index means that the shortest one of the periodicities of the RS resource identified by each SSB index in the at least one SSB index is the shortest period.

[0232] As an embodiment, the shortest period of the RS resources identified by the at least one SSB index refers to: if the at least one SSB index includes multiple SSB indexes, since the RS resources identified by each SSB index in the at least one SSB index have a period, there are multiple periods, the shortest of which is the shortest period.

[0233] As an embodiment, the candidates for the period of the RS resource identified by any SSB index in the at least one SSB index include one of 5ms, 10ms, 20ms, 40ms, 80ms, and 160ms.

[0234] As an embodiment, the shortest period of the RS resources identified by the at least one SSB index is not less than 5ms.

[0235] As an embodiment, the behavior of performing wireless link monitoring within the first time window set according to the RS resources identified by the at least one SSB index means or includes: the first node does not perform the wireless link monitoring on the RS resources identified by the at least one SSB index outside the first time window set.

[0236] As an embodiment, the behavior of performing wireless link monitoring within the first time window set according to the RS resources identified by the at least one SSB index means or includes: when the first node performs the wireless link monitoring, it ignores the RS resources identified by the at least one SSB index outside the first time window set.

[0237] As an embodiment, the first time window set includes multiple time windows.

[0238] As an embodiment, the time windows included in the first time window set do not overlap in the time domain.

[0239] As an embodiment, at least part of the RS resources identified by the at least one SSB index belong to the first time window set.

[0240] As an embodiment, at least part of the RS resources identified by the at least one SSB index do not belong to the first time window set.

[0241] As an embodiment, the advantage of the above method is that the first node only needs to perform wireless link monitoring on part of RS resources, which is more power-saving and has less impact on active BWP.

[0242] As an embodiment, the first time window set is periodic.

[0243] As an embodiment, the length of each time window in the first time window set is equal.

[0244] As an embodiment, the period of the first time window set is a repetition period.

[0245] As an embodiment, the first configuration information indicates the first time window set.

[0246] As an embodiment, when the at least one SSB index does not belong to the active BWP, the first node needs to interrupt to perform wireless link monitoring according to the RS resources identified by the at least one SSB index.

[0247] As an embodiment, the interruption refers to interrupting the reception of the active BWP.

[0248] As an embodiment, the interruption refers to interrupting the reception of at least PDSCH (physical downlink shared channel) of the active BWP.

[0249] As an embodiment, the interruption refers to interrupting the sending of the active BWP.

[0250] As an embodiment, the interruption refers to interrupting the transmission of at least PUSCH (physical uplink shared channel) of the active BWP.

[0251] As an embodiment, the interruption means that a gap is required.

[0252] As an embodiment, the interruption means that a measurement gap is required.

[0253] As an embodiment, the interruption refers to an adverse impact on the communication of the active BWP.

[0254] As an embodiment, the first time window set includes at least one measurement gap.

[0255] As an embodiment, the first time window set is indicated by SMTC (SS / PBCH block measurement timing configuration).

[0256] As an embodiment, the first configuration information indicates the SMTC for the at least one SSB index.

[0257] As a sub-embodiment of this embodiment, the first configuration information indicates the SMTC for each SSB index of the at least one SSB index.

[0258] In a sub-embodiment of this embodiment, the first configuration information indicates that the SMTC for the at least one SSB index is the first time window set.

[0259] In a sub-embodiment of this embodiment, the first configuration information indicates the SMTC indication for the at least one SSB index or corresponds to the first time window set.

[0260] As an embodiment, the length of any time window in the first time window set is sufficient to include the time domain resources occupied by an RS resource identified by the at least one SSB index.

[0261] As an embodiment, the length of any time window in the first time window set is equal to or not less than half a frame.

[0262] As an embodiment, the length of any time window in the first time window set is equal to or not less than 5 ms.

[0263] As an embodiment, the benefits of indicating the first time window set through SMTC include: simple implementation.

[0264] As an embodiment, the period of the first time window set indicated by SMTC is smaller than the SSB period indicated by the network through ssb-periodicityServingCell.

[0265] As an embodiment, the period of the first time window set indicated by SMTC is the period included in the SMTC.

[0266] As an embodiment, the advantage of the above method is that it is more flexible, wireless link monitoring may not be restricted by the SSB cycle, and the SSB sending cycle may not take into account the power saving requirements of wireless link monitoring.

[0267] As an embodiment, the higher layer receives N consecutive indications of the first type within a target time length, triggering a beam failure or triggering a beam failure recovery process.

[0268] As a sub-embodiment of this embodiment, the target time length and N are both network configured.

[0269] As an embodiment, the cell associated with or corresponding to the at least one SSB index is not deactivated.

[0270] As an embodiment, the cell associated with the at least one SSB index is the PCell of the first node.

[0271] As an embodiment, whether the first configuration information includes the first time window set depends on whether the at least one SSB index belongs to the active BWP.

[0272] As an embodiment, when the at least one SSB index does not belong to the active BWP, the first configuration information includes the first time window set; when the at least one SSB index belongs to the active BWP, the first configuration information does not include the first time window set.

[0273] As a sub-embodiment of this embodiment, when the at least one SSB index does not belong to the active BWP, the first configuration information explicitly indicates the first time window set.

[0274] As a sub-embodiment of this embodiment, when the at least one SSB index does not belong to the active BWP, the first configuration information includes a first field, and the first field indicates the first time window set; when the at least one SSB index belongs to the active BWP, the first configuration information does not include the first field.

[0275] As an embodiment, when the at least one SSB index belongs to the active BWP, the first node performs wireless link monitoring according to all RS resources identified by the at least one SSB; when the at least one SSB index belongs to the active BWP, the first node performs wireless link monitoring according to the RS resources within the first time window set identified by the at least one SSB.

[0276] As an embodiment, the first node performs wireless link monitoring based on all RS resources identified by the at least one SSB. When the at least one SSB index belongs to the active BWP, the RS resources identified by the at least one SSB are not restricted by the first time window set; when the at least one SSB index does not belong to the active BWP, the at least one SSB only identifies all RS resources within the first time window set.

[0277] As an embodiment, the first configuration information explicitly indicates the frequency information of the at least one SSB index only when the at least one SSB index does not belong to the active BWP.

[0278] As a sub-embodiment of this embodiment, when the at least one SSB index belongs to the active BWP, the frequency information of the at least one SSB index is implicitly indicated.

[0279] As an embodiment, the frequency information includes frequency point information.

[0280] As an embodiment, the frequency information includes frequency band information.

[0281] As an embodiment, the frequency information includes sub-band information.

[0282] As an embodiment, the frequency information includes carrier information.

[0283] As an embodiment, the frequency information includes the identity of the BWP.

[0284] As an embodiment, when the at least one SSB index does not belong to the active BWP, the frequency of the at least one SSB index is unclear, which is prone to confusion or misjudgment, affecting the performance of wireless link monitoring. The first configuration information can make it clearer, thereby improving the performance of wireless link monitoring; when the at least one SSB index belongs to the active BWP, the frequency domain information of the at least one SSB index is clear, so not indicating specific frequency information is conducive to saving signaling overhead.

[0285] As an embodiment, when the at least one SSB index does not belong to the active BWP, the first node is not configured with the CSI-RS, NCD-SSB or CD-SSB of the active BWP for wireless link monitoring.

[0286] As an embodiment, SSB is divided into CD-SSB and NCD-SSB.

[0287] As an embodiment, when the at least one SSB index does not belong to the active BWP, the first node is not configured with the CSI-RS resources of the active BWP for wireless link monitoring.

[0288] As an embodiment, when the at least one SSB index does not belong to the active BWP, the first node is not configured with the NCD-SSB resources or CD-SSB resources of the active BWP for wireless link monitoring.

[0289] As an embodiment, when the at least one SSB index does not belong to the active BWP, the first node is not configured with the CSI-RS index of the active BWP for wireless link monitoring.

[0290] As an embodiment, when the at least one SSB index does not belong to the active BWP, the first node is not configured with the NCD-SSB index or CD-SSB index of the active BWP for wireless link monitoring.

[0291] As an embodiment, the advantage of the above method is that it saves more resources.

[0292] Example 2

[0293] Embodiment 2 illustrates a schematic diagram of a network architecture according to the present application, as shown in the attached Figure 2 shown.

[0294] Attached Figure 2A diagram of a network architecture 200 for 5G NR, LTE (Long-Term Evolution) and LTE-A (Long-Term Evolution Advanced) systems is illustrated. The 5G NR or LTE network architecture 200 may be referred to as 5GS (5G System) / EPS (Evolved Packet System) 200 or some other suitable terminology. The 5GS / EPS 200 may include one or more UEs (User Equipment) 201, NG-RAN (Next Generation Radio Access Network) 202, 5GC (5G Core Network) / EPC (Evolved Packet Core) 210, HSS (Home Subscriber Server) / UDM (Unified Data Management) 220, and Internet services 230. The 5GS / EPS may be interconnected with other access networks, but these entities / interfaces are not shown for simplicity. As shown, 5GS / EPS provides packet-switched services, however, those skilled in the art will readily appreciate that the various concepts presented throughout this application can be extended to networks providing circuit-switched services or other cellular networks. NG-RAN includes NR Node B (gNB) 203 and other gNBs 204. gNB 203 provides user and control plane protocol terminations toward UE 201. gNB 203 can be connected to other gNBs 204 via an Xn interface (e.g., backhaul). gNB 203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a basic service set (BSS), an extended service set (ESS), a TRP (transmitting receiving node), or some other suitable term. gNB 203 provides an access point to 5GC / EPC 210 for UE 201. Examples of UE 201 include cellular phones, smart phones, session initiation protocol (SIP) phones, laptop computers, personal digital assistants (PDAs), satellite radios, non-terrestrial base station communications, satellite mobile communications, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, drones, aircraft, narrowband Internet of Things devices, machine type communication devices, land vehicles, cars, wearable devices, or any other similar functional devices. Those skilled in the art may also refer to UE 201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable term.gNB203 is connected to 5GC / EPC210 via the S1 / NG interface. 5GC / EPC210 includes MME (Mobility Management Entity) / AMF (Authentication Management Field) / SMF (Session Management Function) 211, other MME / AMF / SMF214, S-GW (Service Gateway) / UPF (User Plane Function) 212, and P-GW (Packet Data Network Gateway) / UPF213. MME / AMF / SMF211 is the control node that handles signaling between UE201 and 5GC / EPC210. ​​In general, MME / AMF / SMF211 provides bearer and connection management. All user IP (Internet Protocol) packets are transmitted through S-GW / UPF212, which itself is connected to P-GW / UPF213. P-GW provides UE IP address allocation and other functions. P-GW / UPF213 is connected to Internet service 230. Internet service 230 includes operator-corresponding Internet protocol services, which may specifically include Internet, Intranet, IMS (IP Multimedia Subsystem) and packet-switched streaming services.

[0295] As an embodiment, the first node in the present application is UE201.

[0296] As an embodiment, the base station of the second node in the present application is gNB203.

[0297] As an embodiment, the wireless link from the UE201 to the NR Node B is an uplink.

[0298] As an embodiment, the wireless link from the NR Node B to UE201 is a downlink.

[0299] As an embodiment, the UE 201 supports relay transmission.

[0300] As an embodiment, the UE 201 includes a mobile phone.

[0301] As an embodiment, the UE 201 is a vehicle including a car.

[0302] As an embodiment, the gNB203 is a macrocellular base station.

[0303] As an embodiment, the gNB203 is a micro cell base station.

[0304] As an embodiment, the gNB203 is a picoCell base station.

[0305] As an embodiment, the gNB203 is a flying platform device.

[0306] As an embodiment, the gNB203 is a satellite device.

[0307] Example 3

[0308] Embodiment 3 shows a schematic diagram of an embodiment of a wireless protocol architecture of a user plane and a control plane according to the present application, as shown in the attached Figure 3 shown. Figure 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300, Figure 3The radio protocol architecture of the control plane 300 for a first node (UE, satellite or aircraft in gNB or NTN) and a second node (satellite or aircraft in gNB, UE or NTN), or between two UEs is shown in three layers: Layer 1, Layer 2, and Layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to as PHY301 in this article. Layer 2 (L2 layer) 305 is above PHY301 and is responsible for the link between the first node and the second node and the two UEs through PHY301. The L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the second node. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by encrypting data packets, and provides support for inter-zone mobility of the first node between the second node. The RLC sublayer 303 provides segmentation and reassembly of upper layer data packets, retransmission of lost data packets, and reordering of data packets to compensate for out-of-order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in a cell between the first nodes. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in layer 3 (L3 layer) in the control plane 300 is responsible for obtaining radio resources (i.e., radio bearers) and configuring the lower layer using RRC signaling between the second node and the first node. The PC5-S (PC5 Signaling Protocol) sublayer 307 is responsible for processing the signaling protocol of the PC5 interface. The radio protocol architecture of the user plane 350 includes Layer 1 (L1 layer) and Layer 2 (L2 layer). The radio protocol architecture for the first node and the second node in the user plane 350 is substantially the same as the corresponding layers and sublayers in the control plane 300 for the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355, and the MAC sublayer 352 in the L2 layer 355, but the PDCP sublayer 354 also provides header compression for upper layer data packets to reduce radio transmission overhead.The L2 layer 355 in the user plane 350 also includes an SDAP (Service Data Adaptation Protocol) sublayer 356, which is responsible for mapping between QoS flows and data radio bearers (DRBs) to support the diversity of services. SRB can be regarded as a service or interface provided by the PDCP layer to a higher layer, such as the RRC layer. In the NR system, SRBs include SRB1, SRB2, SRB3, and SRB4 when it comes to sidelink communication, which are used to transmit different types of control signaling. SRB is a bearer between the UE and the access network, and is used to transmit control signaling including RRC signaling between the UE and the access network. SRB1 has special significance for the UE. After each UE establishes an RRC connection, there will be SRB1 for transmitting RRC signaling. Most of the signaling is transmitted through SRB1. If SRB1 is interrupted or unavailable, the UE must perform RRC reconstruction. SRB2 is generally only used to transmit NAS signaling or signaling related to security. The UE may not configure SRB3. Except for emergency services, the UE must establish an RRC connection with the network for subsequent communication. Although not shown, the first node may have several upper layers above the L2 layer 355. In addition, it also includes a network layer (e.g., IP layer) terminated at the P-GW on the network side and an application layer terminated at the other end of the connection (e.g., remote UE, server, etc.). A protocol sublayer may also be referred to as a protocol layer.

[0309] As an example, Figure 3 The wireless protocol architecture in is applicable to the first node in this application.

[0310] As an example, Figure 3 The wireless protocol architecture in is applicable to the second node in this application.

[0311] As an embodiment, the first configuration information is generated in RRC306.

[0312] As an embodiment, the first capability information is generated in RRC306.

[0313] Example 4

[0314] Embodiment 4 shows a schematic diagram of a first communication device and a second communication device according to an embodiment of the present application, as shown in the attached figure. Figure 4 shown. Figure 4 is a block diagram of a first communication device 450 and a second communication device 410 communicating with each other in an access network.

[0315] The first communication device 450 includes a controller / processor 459, a memory 460, a data source 467, a transmit processor 468, a receive processor 456, and may optionally also include a multi-antenna transmit processor 457, a multi-antenna receive processor 458, a transmitter / receiver 454 and an antenna 452.

[0316] The second communication device 410 includes a controller / processor 475 , a memory 476 , a receiving processor 470 , a transmitting processor 416 , and may optionally also include a multi-antenna receiving processor 472 , a multi-antenna transmitting processor 471 , a transmitter / receiver 418 and an antenna 420 .

[0317] In the transmission from the second communication device 410 to the first communication device 450, at the second communication device 410, the upper layer data packets from the core network are provided to the controller / processor 475. The controller / processor 475 implements the functionality of the L2 (Layer-2) layer. In the transmission from the second communication device 410 to the first communication device 450, the controller / processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the first communication device 450 based on various priority metrics. The controller / processor 475 is also responsible for the retransmission of lost packets and signaling to the first communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the L1 layer (i.e., the physical layer). The transmit processor 416 implements coding and interleaving to facilitate forward error correction (FEC) at the second communication device 410, as well as mapping of signal constellations based on various modulation schemes (e.g., binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), M-phase shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM)). The multi-antenna transmit processor 471 performs digital spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing on the coded and modulated symbols to generate one or more spatial streams. The transmit processor 416 then maps each spatial stream to a subcarrier, multiplexes it with a reference signal (e.g., a pilot) in the time domain and / or frequency domain, and then uses an inverse fast Fourier transform (IFFT) to generate a physical channel carrying a time-domain multi-carrier symbol stream. The multi-antenna transmit processor 471 then performs a transmit analog precoding / beamforming operation on the time-domain multi-carrier symbol stream. Each transmitter 418 converts the baseband multi-carrier symbol stream provided by the multi-antenna transmit processor 471 into a radio frequency stream, and then provides it to a different antenna 420.

[0318] In the transmission from the second communication device 410 to the first communication device 450, at the first communication device 450, each receiver 454 receives a signal through its corresponding antenna 452. Each receiver 454 recovers the information modulated onto the RF carrier and converts the RF stream into a baseband multi-carrier symbol stream and provides it to the receiving processor 456. The receiving processor 456 and the multi-antenna receiving processor 458 implement various signal processing functions of the L1 layer. The multi-antenna receiving processor 458 performs a receiving analog precoding / beamforming operation on the baseband multi-carrier symbol stream from the receiver 454. The receiving processor 456 uses a fast Fourier transform (FFT) to convert the baseband multi-carrier symbol stream after the receiving analog precoding / beamforming operation from the time domain to the frequency domain. In the frequency domain, the physical layer data signal and the reference signal are demultiplexed by the receiving processor 456, wherein the reference signal will be used for channel estimation, and the data signal is recovered after multi-antenna detection in the multi-antenna receiving processor 458 to any spatial stream destined for the first communication device 450. The symbols on each spatial stream are demodulated and recovered in the receiving processor 456, and soft decisions are generated. The receiving processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals transmitted by the second communication device 410 on the physical channel. The upper layer data and control signals are then provided to the controller / processor 459. The controller / processor 459 implements the functions of the L2 layer. The controller / processor 459 may be associated with a memory 460 that stores program codes and data. The memory 460 may be referred to as a computer-readable medium. In the transmission from the second communication device 410 to the second communication device 450, the controller / processor 459 provides multiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover the upper layer data packets from the core network. The upper layer data packets are then provided to all protocol layers above the L2 layer. Various control signals may also be provided to L3 for L3 processing.

[0319] In the transmission from the first communication device 450 to the second communication device 410, at the first communication device 450, a data source 467 is used to provide upper layer data packets to the controller / processor 459. The data source 467 represents all protocol layers above the L2 layer. Similar to the transmission function at the second communication device 410 described in the transmission from the second communication device 410 to the first communication device 450, the controller / processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocation, and implements L2 layer functions for user plane and control plane. The controller / processor 459 is also responsible for the retransmission of lost packets and signaling to the second communication device 410. The transmit processor 468 performs modulation mapping and channel coding processing, and the multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing. Then, the transmit processor 468 modulates the generated spatial stream into a multi-carrier / single-carrier symbol stream, which is then provided to different antennas 452 via the transmitter 454 after analog precoding / beamforming operations in the multi-antenna transmit processor 457. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a radio frequency symbol stream, and then provides it to the antenna 452.

[0320] In the transmission from the first communication device 450 to the second communication device 410, the function at the second communication device 410 is similar to the reception function at the first communication device 450 described in the transmission from the second communication device 410 to the first communication device 450. Each receiver 418 receives a radio frequency signal through its corresponding antenna 420, converts the received radio frequency signal into a baseband signal, and provides the baseband signal to the multi-antenna reception processor 472 and the reception processor 470. The reception processor 470 and the multi-antenna reception processor 472 jointly implement the functions of the L1 layer. The controller / processor 475 implements the L2 layer functions. The controller / processor 475 can be associated with a memory 476 storing program codes and data. The memory 476 can be referred to as a computer-readable medium. In the transmission from the first communication device 450 to the second communication device 410, the controller / processor 475 provides multiplexing between transport and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover the upper layer data packets from the UE 450. Upper layer packets from controller / processor 475 may be provided to the core network.

[0321] As an embodiment, the first communication device 450 comprises: at least one processor and at least one memory, the at least one memory comprising computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor, and the first communication device 450 at least: receives first configuration information, the first configuration information is configured for at least one SSB index for wireless link monitoring; the first receiver performs wireless link monitoring according to the RS resource identified by the at least one SSB index; the first processor sends a first type of indication from layer 1 to a higher layer whenever the wireless link quality on the RS resource identified by the at least one SSB index is worse than a first threshold; the minimum time interval between consecutive first type indications depends on whether the at least one SSB index belongs to an active BWP; wherein, Compared with when the at least one SSB index belongs to the active BWP, the minimum time interval between the consecutive first-type indications is longer when the at least one SSB index does not belong to the active BWP; the minimum time interval between the consecutive first-type indications is not less than the shortest period of the RS resources identified by the at least one SSB index; the behavior of performing wireless link monitoring according to the RS resources identified by the at least one SSB index depends on whether the at least one SSB index belongs to the active BWP; when the at least one SSB index does not belong to the active BWP, the behavior of performing wireless link monitoring according to the RS resources identified by the at least one SSB index is performed within a first time window set, and the period of the first time window set is greater than the shortest period of the RS resources identified by the at least one SSB index.

[0322] As an embodiment, the first communication device 450 includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generates an action when executed by at least one processor, the action including: receiving first configuration information, the first configuration information is configured for at least one SSB index for wireless link monitoring; the first receiver performs wireless link monitoring according to the RS resource identified by the at least one SSB index; the first processor sends a first type of indication from layer 1 to a higher layer whenever the wireless link quality on the RS resource identified by the at least one SSB index is worse than a first threshold; the minimum time interval between consecutive first type indications depends on whether the at least one SSB index belongs to an active BWP; wherein, compared to the at least one SSB index belonging to the active Jump BWP, when the at least one SSB index does not belong to the active BWP, the minimum time interval between the consecutive first-type indications is longer; the minimum time interval between the consecutive first-type indications is not less than the shortest period of the RS resources identified by the at least one SSB index; the behavior of performing wireless link monitoring according to the RS resources identified by the at least one SSB index depends on whether the at least one SSB index belongs to the active BWP; when the at least one SSB index does not belong to the active BWP, the behavior of performing wireless link monitoring according to the RS resources identified by the at least one SSB index is performed within a first time window set, and the period of the first time window set is greater than the shortest period of the RS resources identified by the at least one SSB index.

[0323] As an embodiment, the first communication device 450 corresponds to the first node in this application.

[0324] As an embodiment, the second communication device 410 corresponds to the second node in this application.

[0325] As an embodiment, the first communication device 450 is a UE.

[0326] As an embodiment, the first communication device 450 is a vehicle-mounted terminal.

[0327] As an embodiment, the second communication device 450 is a relay.

[0328] As an embodiment, the second communication device 410 is a satellite.

[0329] As an embodiment, the second communication device 410 is an aircraft.

[0330] As an embodiment, the second communication device 410 is a base station.

[0331] As an embodiment, the receiver 454 (including the antenna 452, the receiving processor 456 and the controller / processor 459) is used to receive the first configuration information in the present application.

[0332] As an embodiment, the transmitter 454 (including the antenna 452, the transmission processor 468 and the controller / processor 459) is used to send the first capability information in the present application.

[0333] Example 5

[0334] Embodiment 5 illustrates a wireless signal transmission flow chart according to an embodiment of the present application, as shown in the attached Figure 5 Attached Figure 5 In the example, U01 corresponds to the first node of the present application, and U02 corresponds to the second node of the present application. It is particularly noted that the order in this example does not limit the signal transmission order and implementation order in the present application, wherein the steps in F51 are optional.

[0335] for First node U01 , sending first capability information in step S5101; receiving first configuration information in step S5102; performing wireless link monitoring according to RS resources identified by at least one SSB index in step S5103; and whenever the quality of the wireless link on the RS resources identified by at least one SSB index is worse than a first threshold in step S5104, layer 1 sends a first type of indication to a higher layer.

[0336] for First node U02 , receiving first capability information in step S5201; and sending first configuration information in step S5202.

[0337] In Example 5, the first configuration information is configured for at least one SSB index for wireless link monitoring; the minimum time interval between consecutive first-type indications depends on whether the at least one SSB index belongs to an active BWP; wherein, compared with when the at least one SSB index belongs to the active BWP, the minimum time interval between the consecutive first-type indications is longer when the at least one SSB index does not belong to the active BWP; the minimum time interval between the consecutive first-type indications is not less than the shortest period of the RS resources identified by the at least one SSB index; the behavior performs wireless link monitoring according to the RS resources identified by the at least one SSB index depends on whether the at least one SSB index belongs to the active BWP; when the at least one SSB index does not belong to the active BWP, the behavior performs wireless link monitoring according to the RS resources identified by the at least one SSB index within a first time window set, and the period of the first time window set is greater than the shortest period of the RS resources identified by the at least one SSB index.

[0338] As an embodiment, the first node U01 is a UE, and the second node U02 is a service cell or a cell group of the first node U01.

[0339] As an embodiment, the first node U01 is a UE, and the second node U02 is a base station serving the first node U01.

[0340] As an embodiment, the first node U01 is a UE, and the second node U02 is the SpCell of the first node U01 or a base station corresponding to the SpCell.

[0341] As an embodiment, the first node U01 is a UE, and the second node U02 is the PCell of the first node U01 or a base station corresponding to the PCell.

[0342] As an embodiment, the interface between the first node U01 and the second node U02 is a Uu interface.

[0343] As an embodiment, step S5101 precedes step S5102.

[0344] As an embodiment, step S5102 precedes step S5103.

[0345] As an embodiment, step S5103 precedes step S5104.

[0346] As an embodiment, the first capability information includes UE Capability Information.

[0347] As an embodiment, the first capability information indicates that the first node U01 is not a RedCap UE.

[0348] As an embodiment, the first capability information does not indicate that the first node U01 is a RedCap UE.

[0349] As an embodiment, the first capability information indicates that the receiving bandwidth of the first node U01 is equal to the active BWP.

[0350] As an embodiment, the first capability information indicates that the receiving bandwidth of the first node U01 is insufficient to simultaneously receive the active BWP and the RS resources identified by the at least one SSB index.

[0351] As an embodiment, the first capability information indicates that the first node U01 requires interruption time before it can receive the RS resources identified by the at least one SSB index.

[0352] As an embodiment, the first capability information indicates that the first node U01 needs to interrupt the reception of the active BWP before receiving the RS resources identified by the at least one SSB index.

[0353] As an embodiment, the wireless link monitoring includes receiving on RS resources.

[0354] As an embodiment, the first capability information indicates a frequency band supported by the first node U01.

[0355] As an embodiment, the first capability information indicates the number of SSB indexes supported by the first node U01 for wireless link monitoring.

[0356] As an embodiment, the sentence that the first capability information indicates that the first node does not support wireless link monitoring on the RS resources identified by the SSB index other than the active BWP without interruption means that wireless link monitoring on the RS resources identified by the SSB index other than the active BWP will cause interruption of reception on the BWP.

[0357] As an embodiment, the network may obtain the capability of the first node U01 through network access information and other means. Active reporting of the first capability information by the first node U01 has the advantages of greater accuracy and shorter processing delay.

[0358] As an embodiment, receiving RS resources identified by the SSB index that does not belong to the active BWP will cause an interruption. If the first time window set is not configured and the first node U01 handles it by itself, it will affect the reception of the active BWP. Therefore, configuring the SSB index that does not belong to the active BWP for the active BWP to perform wireless link monitoring has technical barriers in the prior art.

[0359] As an embodiment, the first node receives first configuration information, and the first configuration information is configured for at least one SSB index for wireless link monitoring; the at least one SSB index includes 2 SSB indexes; the first node U01 performs wireless link monitoring according to the RS resources identified by the at least one SSB index; whenever the quality of the wireless link on the RS resources identified by the at least one SSB index is worse than a first threshold, a first type of indication is sent by layer 1 to a higher layer; the at least one SSB index belongs to an active BWP, the minimum time interval between consecutive first type indications is not less than the shortest period of the RS resources identified by the at least one SSB index, and the minimum time interval between consecutive first type indications is not less than a first time length.

[0360] As a sub-embodiment of this embodiment, the first node U01 is not configured with DRX.

[0361] As a sub-embodiment of this embodiment, the first time length is equal to the larger of 2 ms and the shortest period of the RS resource identified by the at least one SSB index.

[0362] As a sub-embodiment of this embodiment, the second node U02 sends the first configuration information via an RRCReconfiguration message.

[0363] As a sub-embodiment of this embodiment, the second node U02 indicates that the at least one SSB index includes 2 SSB indexes according to the frequency of the active BWP, or a fixed algorithm, for example, indicating 2 SSB indexes each time for wireless link monitoring, for example, selecting an SSB index of a BWP center, for example, selecting the maximum number of SSB indexes that can be supported by the corresponding frequency band; for example, selecting an SSB identified by an SSB index with the smallest transmission power in a BWP.

[0364] As a sub-embodiment of this embodiment, the first configuration information configures the first threshold.

[0365] As an embodiment, the first node receives first configuration information, and the first configuration information is configured for at least one SSB index for wireless link monitoring; the at least one SSB index includes 2 SSB indexes; the first node U01 performs wireless link monitoring according to the RS resources identified by the at least one SSB index; whenever the wireless link quality on the RS resources identified by the at least one SSB index is worse than a first threshold, a first type of indication is sent by layer 1 to a higher layer; the at least one SSB index does not belong to an active BWP, the minimum time interval between consecutive first type indications is not less than the shortest period of the RS resources identified by the at least one SSB index, and the minimum time interval between consecutive first type indications is not less than a second time length; the behavior performs wireless link monitoring according to the RS resources identified by the at least one SSB index within a first time window set, and the period of the first time window set is greater than the shortest period of the RS resources identified by the at least one SSB index.

[0366] As a sub-embodiment of this embodiment, the first node U01 is not configured with DRX.

[0367] As a sub-embodiment of this embodiment, the second time length is equal to the larger of 2 ms and 1.5 times the shortest period of the RS resource identified by the at least one SSB index.

[0368] As a sub-embodiment of this embodiment, the second node U02 sends the first configuration information via an RRCReconfiguration message.

[0369] As a sub-embodiment of this embodiment, the second node U02 indicates that the at least one SSB index includes 2 SSB indexes according to the frequency of the active BWP, or a fixed algorithm, for example, indicating 2 SSB indexes each time for wireless link monitoring, for example, selecting an SSB index of a BWP center, for example, selecting the maximum number of SSB indexes that can be supported by the corresponding frequency band; for example, selecting an SSB identified by an SSB index with the smallest transmission power in a BWP.

[0370] As a sub-embodiment of this embodiment, the first configuration information configures the first threshold.

[0371] As a sub-embodiment of this embodiment, the first configuration information indicates the first time window set.

[0372] As a sub-embodiment of this embodiment, the first node U01 is not configured with the CSI-RS, NCD-SSB or CD-SSB of the active BWP for wireless link monitoring.

[0373] As an embodiment, the method proposed in the present application does not limit whether the first node is configured with DRX.

[0374] As an embodiment, the method proposed in the present application does not limit the number of the at least one SSB index.

[0375] As an embodiment, the first configuration information is unicast.

[0376] As an embodiment, regardless of whether interruption time is required, receiving a wider frequency band, such as simultaneously receiving RS resources identified by SSB indexes outside the active BWP and the active BWP, consumes more power. Therefore, when at least one SSB index does not belong to the active BWP, limiting the wireless link monitoring to the first time window set can save power.

[0377] Example 6

[0378] Example 6 illustrates a schematic diagram of SSB according to an embodiment of the present application, as shown in the attached Figure 6 shown.

[0379] As an example, Figure 6 The horizontal axis in is the number of the OFDM symbol, abbreviated as symbol, such as #0, #1, #2, #3, OFDM symbol; Figure 6The vertical axis is the subcarrier number, from #0 to #239.

[0380] As an example, Figure 6 The horizontal axis represents the time domain, and the vertical axis represents the frequency domain.

[0381] As an embodiment, the synchronization signal and PBCH block, also referred to as the SS / PBCH block or SS-Block or SSB, includes a primary synchronization signal (PSS) and a secondary synchronization signal (SSS), each occupying 1 symbol and, for example, 127 subcarriers; the PBCH occupies 3 symbols and 240 subcarriers, but some parts are reserved for the SSS; the time domain position of the SSB in a half frame is determined by the subcarrier spacing; the period of the half frame for transmitting the SSB is configured by the network; within a half frame, different SSBs can be sent in different spatial directions, that is, using different beams; multiple SSBs can be transmitted in the entire frequency domain interval; the PCI of the SSB sent at different frequency domain positions can be different, that is, the SSBs at different frequency domain positions can have different PCIs; when an SSB is associated with SIB1, the SSB is called a cell defining SSB (CD-SSB); a PCell is always associated with a CD-SSB on a frequency domain grid.

[0382] As a sub-embodiment of this embodiment, the SSB identified by the at least one SSB index is applicable to the above definition.

[0383] As a sub-embodiment of this embodiment, the SSB identified by the at least one SSB index may be a CD-SSB or may not be a CD-SSB, and may be either a CD-SSB or an NCD-SSB.

[0384] As an embodiment, the reception timing of a PBCH, a primary synchronization signal (PSS) and a secondary synchronization signal (SSS) is on consecutive symbols and constitutes an SS / PBCH block; the transmission power of SSS, PBCH DM-RS and PBCH data is the same; the transmission power of SSS and PSS in an SS / PBCH block can be equal or differ by 3dB.

[0385] As an embodiment, the index of the first symbol of the half-frame including the SS / PBCH block is determined according to the subcarrier spacing of the SS / PBCH block.

[0386] As an embodiment, the definitions of PBCH, PSS and SSS may further refer to 3GPP TS38.211 protocol.

[0387] As an embodiment, when the at least one SSB index does not belong to the active BWP, the cell identity associated with the at least one SSB index is the same as the cell identity associated with the signal on the active BWP.

[0388] As a sub-embodiment of this embodiment, the benefits of the above method include: easier processing.

[0389] As an embodiment, when the at least one SSB index does not belong to the active BWP, the cell identity associated with the at least one SSB index is different from the cell identity associated with the signal on the active BWP.

[0390] As a sub-embodiment of this embodiment, the benefits of the above method include: more flexible processing.

[0391] As an embodiment, the association method between SSB and cell identity is fixed and is the prior art in this field.

[0392] Example 7

[0393] Example 7 illustrates a schematic diagram of a BWP according to an embodiment of the present application, as shown in the attached Figure 7 shown.

[0394] As an embodiment, the UE may be configured with one or more bandwidth parts (BWP) on a given component carrier, only one of these configured BWPs being active at the same time, namely the active BWP; the active BWP defines the working bandwidth of the UE within the working bandwidth of the cell; for initial access, the UE uses the initial BWP obtained from the system information before being further configured.

[0395] As an embodiment, through bandwidth adaptation (BA), the receiving and transmitting bandwidths of a UE may not be the same as the bandwidth of the cell and may be adjustable: that is, the width of the working frequency band may be changed, and the position of the frequency domain may also be adjusted; a subset of the total bandwidth of a cell constitutes a BWP, and bandwidth adaptation is achieved by configuring a BWP for the UE and indicating which of the BWPs configured by the UE is currently active.

[0396] As an embodiment, after being configured with a BA, a UE in an RRC connected state monitors a paging channel using a common search space only on an active BWP.

[0397] As an embodiment, after being configured with BA, the UE obtains SI (system information) only on the active BWP.

[0398] As an embodiment, when the BA is configured, the first node monitors the PDCCH (physical downlink control channel) only on the active BWP, without having to monitor the PDCCH on the entire downlink frequency of the cell;

[0399] As an example, Figure 7 Three BWPs are shown, but the method proposed in this application is not limited to the number of BWPs.

[0400] As an example, Figure 7 The three BWPs shown are BWP1, BWP2 and BWP3, which occupy bandwidths of 40 MHz, 10 MHz and 20 MHz respectively and their respective subcarrier spacings. The method proposed in this application does not limit the specific width of the BWP.

[0401] As an example, Figure 7 Only one of the three BWPs shown, BWP1, BWP2 and BWP3, can be the active BWP at the same time.

[0402] As an embodiment, the first node has only one active BWP at the same time.

[0403] As an embodiment, the network configures the active BWP of the first node.

[0404] As an embodiment, the network configures which BWP is the active BWP for the first node.

[0405] As an embodiment, upon initial access, the initial BWP is the active BWP.

[0406] As an embodiment, the bandwidth supported by the first node is wider than the active BWP.

[0407] As a sub-embodiment of this embodiment, the first node is still not sufficient to simultaneously receive the active BWP and the RS resources identified by the SSB index that does not belong to the active BWP.

[0408] As an embodiment, the bandwidth supported by the first node is not wider than the active BWP.

[0409] As an embodiment, if the active BWP of the first node is Figure 7When the at least one SSB index does not belong to the active BWP, it may belong to one of the three BWPs, for example.

[0410] Example 8

[0411] Embodiment 8 illustrates a schematic diagram of the minimum time interval between consecutive first-type indications according to an embodiment of the present application, as shown in the attached figure. Figure 8 shown.

[0412] Attached Figure 8 The sending times of the first type of indications are indicated five times, and the method proposed in this application does not limit the number of times the first type of indications are sent.

[0413] Typically, the first node sends a plurality of consecutive first type indications.

[0414] As an embodiment, the method proposed in the present application does not limit the specific sending time of the first type of indication, but only limits the minimum time interval between consecutive first type of indications.

[0415] As an embodiment, the minimum time interval between the consecutive first-category indications is the minimum time interval between two adjacent first-category indications.

[0416] As an embodiment, the minimum time interval between the consecutive first-category indications is the minimum time interval between two first-category indications that are immediately adjacent to each other.

[0417] As an embodiment, the continuous first-type indications refer to other indications that do not violate the first-type indications.

[0418] As a sub-embodiment of this embodiment, for example, the first type of indication is out-of-sync, and the other indications that are not indicated by the first type are in-sync indications.

[0419] As an embodiment, requiring a minimum time interval helps to make radio link monitoring more accurate and reduce the amount of control signaling, for example, if the first type of indication triggers the sending of control signaling.

[0420] As an embodiment, the minimum time interval between the consecutive first-type indications is T Indication_interval .

[0421] As an embodiment, the minimum time interval between the consecutive first-type indications is T Indication_interval_BFD .

[0422] As an embodiment, the minimum time interval between the consecutive first-type indications is T Indication_interval_RLM。

[0423] Example 9

[0424] Embodiment 9 illustrates a schematic diagram of a minimum time interval between consecutive first-type indications according to an embodiment of the present application depending on the product of the first coefficient and the shortest period of the RS resource identified by at least one SSB index, as shown in the attached figure. Fig. 9 shown.

[0425] As an embodiment, the at least one SSB index does not belong to the active BWP.

[0426] As an embodiment, the minimum time interval between consecutive first-type indications depends on the product of the first coefficient and the shortest period of the RS resource identified by at least one SSB index.

[0427] As an embodiment, when the at least one SSB index includes only one SSB index, the shortest period of the RS resource identified by the at least one SSB index is the period of the RS resource identified by the at least one SSB index.

[0428] As an embodiment, the minimum time interval between consecutive first-type indications is equal to the product of the first coefficient and the shortest period of the RS resource identified by at least one SSB index.

[0429] As an embodiment, the minimum time interval between consecutive first-type indications is equal to the larger of the product of the first coefficient and the shortest period of the RS resource identified by at least one SSB index and the first value.

[0430] As an embodiment, the first coefficient is greater than 1.

[0431] As an embodiment, the first coefficient is equal to 2.

[0432] As an embodiment, the first coefficient is equal to 3.

[0433] As an embodiment, the first coefficient is not equal to 0.

[0434] As an embodiment, the first value is equal to 2 ms.

[0435] As an embodiment, the first value is equal to 3 ms.

[0436] As an embodiment, the first value is equal to 10 ms.

[0437] As an embodiment, when the wireless link monitoring is for monitoring of wireless link failure, the first value is equal to 10ms; when the wireless link monitoring is for beam failure recovery detection, the first value is equal to 2ms.

[0438] As an embodiment, the minimum time interval between consecutive first-category indications satisfies: T=max(X, K*T SSB ), wherein T represents the minimum time interval between the consecutive first-type indications, X is the first value, K is the first coefficient, and T SSB is the shortest period of the RS resource identified by the at least one SSB index, and '*' is multiplication.

[0439] As a sub-embodiment of this embodiment, the first node is not configured with DRX.

[0440] As a sub-embodiment of this embodiment, the first coefficient is greater than 1.

[0441] As a sub-embodiment of this embodiment, the first coefficient is equal to 1.5.

[0442] As a sub-embodiment of this embodiment, the first coefficient is equal to 2.

[0443] As an embodiment, the minimum time interval between consecutive first-category indications satisfies: T=max(X, K1*Td, K*T SSB ), wherein T represents the minimum time interval between the consecutive first-type indications, X is the first value, K is the first coefficient, and T SSB is the shortest period of the RS resource identified by the at least one SSB index, Td is the configured DRX period, K1 is a fixed coefficient, and '*' is multiplication.

[0444] As a sub-embodiment of this embodiment, K1 is equal to 1.5.

[0445] As a sub-embodiment of this embodiment, K is greater than 1.5.

[0446] As a sub-embodiment of this embodiment, K is equal to 2.

[0447] As a sub-embodiment of this embodiment, K is equal to 3.

[0448] As a sub-embodiment of this embodiment, the first type of indication is out-of-sync.

[0449] As a sub-embodiment of this embodiment, the first node is configured with DRX.

[0450] As a sub-embodiment of this embodiment, the benefits of the above method include: more accurate wireless link monitoring results can be obtained.

[0451] As an embodiment, the minimum time interval between consecutive first-category indications satisfies: T=max(K1*Td,K*T SSB ), wherein T represents the minimum time interval between the consecutive first-type indications, K is the first coefficient, and T SSB is the shortest period of the RS resource identified by the at least one SSB index, Td is the configured DRX period, K1 is a fixed coefficient, and '*' is multiplication.

[0452] As a sub-embodiment of this embodiment, K1 is equal to 1.5.

[0453] As a sub-embodiment of this embodiment, K is greater than 1.5.

[0454] As a sub-embodiment of this embodiment, K is equal to 2.

[0455] As a sub-embodiment of this embodiment, K is equal to 3.

[0456] As a sub-embodiment of this embodiment, the first type of indication is a beam failure instance indication.

[0457] As a sub-embodiment of this embodiment, the benefits of the above method include: the wireless link monitoring results can be obtained more quickly.

[0458] As an embodiment, when the first node is configured with DRX, the first node is only configured with DRX with a period shorter than 320ms.

[0459] As an embodiment, the benefits of the above method include: the determined minimum time interval between consecutive first-category indications is more accurate.

[0460] As an embodiment, the period of the first time window set depends on the first coefficient.

[0461] As an embodiment, the first coefficient is linearly related to the ratio of the period of the first time window set to the shortest period of the RS resource identified by the at least one SSB index.

[0462] As a sub-embodiment of this embodiment, the first coefficient is linearly related to the larger of the ratio of the period of the first time window set to the shortest period of the RS resource identified by the at least one SSB index and 1.

[0463] As an embodiment, the first coefficient is equal to the ratio of the period of the first time window set to the shortest period of the RS resource identified by the at least one SSB index.

[0464] As a sub-embodiment of this embodiment, the first coefficient is equal to the larger of the ratio of the period of the first time window set to the shortest period of the RS resource identified by the at least one SSB index and 1.

[0465] As an embodiment, the first coefficient satisfies: 1 / (1-Y / Z), where Y is the shortest period of the RS resource identified by the at least one SSB index, and Z is the period of the first time window set.

[0466] As an embodiment, the first coefficient satisfies: the fewer the RS resources identified by the at least one SSB included in the first time window set, the larger the first coefficient.

[0467] As a sub-embodiment of this embodiment, the first time window set only includes a portion of the RS resources identified by the at least one SSB.

[0468] As an embodiment, the first coefficient satisfies: the fewer the SSB transmissions identified by the at least one SSB included in the first time window set, the larger the first coefficient.

[0469] As a sub-embodiment of this embodiment, the first time window set only includes part of the SSB identified by the at least one SSB, that is, part of the SSB identified by the at least one SSB index is transmitted within the at least one time window set, and part of the SSB is transmitted outside the first time window set.

[0470] As a sub-embodiment of this embodiment, for the first node, at least part of the transmitted SSB is not identified by the at least one SSB index, that is, the at least one SSB index identifies the SSB transmission within the first time window set.

[0471] As an embodiment, the ratio of all SSB transmissions identified by the at least one SSB index to the SSB transmissions within the first time window set identified by the at least one SSB index is used to determine the first coefficient.

[0472] As an embodiment, the first coefficient is linearly related to the ratio of all SSB transmissions identified by the at least one SSB index to the SSB transmissions within the first time window set identified by the at least one SSB index.

[0473] As an embodiment, the first coefficient is equal to the ratio of all SSB transmissions identified by the at least one SSB index to the SSB transmissions within the first time window set identified by the at least one SSB index.

[0474] As an embodiment, the first coefficient is configurable.

[0475] As a sub-embodiment of this embodiment, the benefits of this embodiment include greater flexibility.

[0476] As an embodiment, the first coefficient is fixed.

[0477] As a sub-embodiment of this embodiment, the advantages of this embodiment include being easier to implement and less likely to cause ambiguity.

[0478] Example 10

[0479] Embodiment 10 illustrates a schematic diagram of a minimum time interval between consecutive first-type indications depending on the period of the first time window set according to an embodiment of the present application, as shown in the attached figure. Fig.10 shown.

[0480] As an embodiment, the at least one SSB index does not belong to the active BWP.

[0481] As an embodiment, when the at least one SSB index belongs to the active BWP, the minimum time interval between consecutive first-type indications depends on the shortest period of the RS resource identified by the at least one SSB index.

[0482] As a sub-embodiment of this embodiment, when the at least one SSB index belongs to the active BWP, the minimum time interval between consecutive first-type indications does not depend on the period of the first time window set.

[0483] As a sub-embodiment of this embodiment, when the at least one SSB index belongs to the active BWP, the first time window set is not configured.

[0484] As an embodiment, when the first node is configured with DRX, the first node is only configured with DRX with a period shorter than 320ms.

[0485] As an embodiment, the meaning of the sentence that the minimum time interval between consecutive first-type indications depends on the period of the first time window set includes: when the at least one SSB index does not belong to the active BWP, the minimum time interval between consecutive first-type indications depends on the product of a first coefficient and the shortest period of the RS resources identified by the at least one SSB index; the first coefficient is greater than 1; the period of the first time window set depends on the first coefficient.

[0486] As an embodiment, the minimum time interval between consecutive first-category indications satisfies: T=max(X, max(Tw, TSSB )), wherein T represents the minimum time interval between the consecutive first-type indications, X is a first value, and T SSB is the shortest period of the RS resource identified by the at least one SSB index, '*' is multiplication, and Tw is the period of the first time window set.

[0487] As a sub-embodiment of this embodiment, the first node is not configured with DRX.

[0488] As a sub-embodiment of this embodiment, the benefits of the above method include that the impact of the first time window set on wireless link monitoring can be more fully considered.

[0489] As an embodiment, the minimum time interval between consecutive first-category indications satisfies: T=max(X, K1*max(Tw, T SSB )), wherein T represents the minimum time interval between the consecutive first-type indications, X is a first value, and T SSB is the shortest period of the RS resource identified by the at least one SSB index, '*' is multiplication, and Tw is the period of the first time window set.

[0490] As a sub-embodiment of this embodiment, K1 is a coefficient that is neither 0 nor 1.

[0491] As a sub-embodiment of this embodiment, K1 is a fixed coefficient.

[0492] As a sub-embodiment of this embodiment, K1 is equal to 1.5.

[0493] As a sub-embodiment of this embodiment, K1 is equal to 2.

[0494] As a sub-embodiment of this embodiment, K1 is equal to 3.

[0495] As a sub-embodiment of this embodiment, the first node is not configured with DRX.

[0496] As a sub-embodiment of this embodiment, the benefits of the above method include that the impact of the first time window set on wireless link monitoring can be more fully considered.

[0497] As an embodiment, the minimum time interval between consecutive first-category indications satisfies: T=max(K1*Td,K*max(Tw,T SSB )), wherein T represents the minimum time interval between the consecutive first-type indications, K is the first coefficient, and T SSBis the shortest period of the RS resource identified by the at least one SSB index, Td is the configured DRX period, K1 is a fixed coefficient, '*' is multiplication, and Tw is the period of the first time window set.

[0498] As a sub-embodiment of this embodiment, K1 is equal to 1.5.

[0499] As a sub-embodiment of this embodiment, K is equal to 1.5.

[0500] As a sub-embodiment of this embodiment, K is greater than 1.5.

[0501] As a sub-embodiment of this embodiment, K is equal to 2.

[0502] As a sub-embodiment of this embodiment, K is equal to 3.

[0503] As a sub-embodiment of this embodiment, the benefits of the above method include that the impact of the first time window set on wireless link monitoring can be more fully considered.

[0504] As an embodiment, the minimum time interval between consecutive first-category indications satisfies: T=max(X+K1*Td,K*max(Tw,T SSB )), wherein T represents the minimum time interval between the consecutive first-type indications, X is the first value; K is the first coefficient, and T SSB is the shortest period of the RS resource identified by the at least one SSB index, Td is the configured DRX period, K1 is a fixed coefficient, '*' is multiplication, and Tw is the period of the first time window set.

[0505] As a sub-embodiment of this embodiment, K1 is equal to 1.5.

[0506] As a sub-embodiment of this embodiment, K is equal to 1.5.

[0507] As a sub-embodiment of this embodiment, K is greater than 1.5.

[0508] As a sub-embodiment of this embodiment, K is equal to 2.

[0509] As a sub-embodiment of this embodiment, K is equal to 3.

[0510] As a sub-embodiment of this embodiment, the benefits of the above method include that the impact of the first time window set on wireless link monitoring can be more fully considered.

[0511] As an embodiment, the first value is equal to 2 ms.

[0512] As an embodiment, the first value is equal to 3 ms.

[0513] As an embodiment, the first value is equal to 10 ms.

[0514] As an embodiment, when the wireless link monitoring is for monitoring of wireless link failure, the first value is equal to 10ms; when the wireless link monitoring is for beam failure recovery detection, the first value is equal to 2ms.

[0515] Embodiment 11

[0516] Embodiment 11 illustrates a schematic diagram of a minimum time interval between consecutive first-type indications according to an embodiment of the present application depending on the sum of the second coefficient and the shortest period of the RS resource identified by at least one SSB index, as shown in the attached figure. Fig.11 shown.

[0517] As an embodiment, the at least one SSB index does not belong to the active BWP.

[0518] As an embodiment, the minimum time interval between consecutive first-category indications satisfies: T=max(X, K*(K2+T SSB )), wherein T represents the minimum time interval between the consecutive first-type indications, X is a first value, K2 is the second coefficient, and T SSB is the shortest period of the RS resource identified by the at least one SSB index, and '*' is multiplication.

[0519] As a sub-embodiment of this embodiment, the first node is not configured with DRX.

[0520] As a sub-embodiment of this embodiment, K is not 0.

[0521] As a sub-embodiment of this embodiment, K is equal to 1.

[0522] As a sub-embodiment of this embodiment, K is not equal to 1.

[0523] As a sub-embodiment of this embodiment, K is equal to 1.5.

[0524] As a sub-embodiment of this embodiment, the second coefficient is non-zero.

[0525] As a sub-embodiment of this embodiment, the second coefficient depends on the shortest period of the RS resource identified by the at least one SSB index.

[0526] As a sub-embodiment of this embodiment, the second coefficient depends on the period of the first time window set.

[0527] As a sub-embodiment of this embodiment, the second coefficient depends on how many RS resources identified by the at least one SSB index are included in the first time window set.

[0528] As an embodiment, the minimum time interval between consecutive first-category indications satisfies: T=max(X, K1*Td, K*(K2+T SSB )), wherein T represents the minimum time interval between the consecutive first-type indications, X is a first value, and K2 is the second coefficient; T SSB is the shortest period of the RS resource identified by the at least one SSB index, Td is the configured DRX period, K1 is a fixed coefficient, and '*' is multiplication.

[0529] As a sub-embodiment of this embodiment, K1 is equal to 1.5.

[0530] As a sub-embodiment of this embodiment, K is not 0.

[0531] As a sub-embodiment of this embodiment, K is equal to 1.

[0532] As a sub-embodiment of this embodiment, K is not equal to 1.

[0533] As a sub-embodiment of this embodiment, K is equal to 1.5.

[0534] As a sub-embodiment of this embodiment, the second coefficient is non-zero.

[0535] As a sub-embodiment of this embodiment, the second coefficient depends on the shortest period of the RS resource identified by the at least one SSB index.

[0536] As a sub-embodiment of this embodiment, the second coefficient depends on the period of the first time window set.

[0537] As a sub-embodiment of this embodiment, the second coefficient depends on how many RS resources identified by the at least one SSB index are included in the first time window set.

[0538] As a sub-embodiment of this embodiment, the first type of indication is out-of-sync.

[0539] As a sub-embodiment of this embodiment, the first node is configured with DRX.

[0540] As a sub-embodiment of this embodiment, the benefits of the above method include: more accurate wireless link monitoring results can be obtained.

[0541] As an embodiment, the minimum time interval between consecutive first-category indications satisfies: T=max(K1*Td,K*(K2+T SSB )), wherein T represents the minimum time interval between the consecutive first-type indications, K2 is the second coefficient, and T SSB is the shortest period of the RS resource identified by the at least one SSB index, Td is the configured DRX period, K1 is a fixed coefficient, and '*' is multiplication.

[0542] As a sub-embodiment of this embodiment, K1 is equal to 1.5.

[0543] As a sub-embodiment of this embodiment, K is not 0.

[0544] As a sub-embodiment of this embodiment, K is equal to 1.

[0545] As a sub-embodiment of this embodiment, K is not equal to 1.

[0546] As a sub-embodiment of this embodiment, K is equal to 1.5.

[0547] As a sub-embodiment of this embodiment, the second coefficient is non-zero.

[0548] As a sub-embodiment of this embodiment, the second coefficient depends on the shortest period of the RS resource identified by the at least one SSB index.

[0549] As a sub-embodiment of this embodiment, the second coefficient depends on the period of the first time window set.

[0550] As a sub-embodiment of this embodiment, the second coefficient depends on how many RS resources identified by the at least one SSB index are included in the first time window set.

[0551] As a sub-embodiment of this embodiment, the first type of indication is a beam failure instance indication.

[0552] As a sub-embodiment of this embodiment, the benefits of the above method include: the wireless link monitoring results can be obtained more quickly.

[0553] As an embodiment, when the first node is configured with DRX, the first node is only configured with DRX with a period shorter than 320ms.

[0554] As an embodiment, the first value is equal to 2 ms.

[0555] As an embodiment, the first value is equal to 3 ms.

[0556] As an embodiment, the first value is equal to 3 ms.

[0557] As an embodiment, the first value is equal to 10 ms.

[0558] As an embodiment, when the wireless link monitoring is for monitoring of wireless link failure, the first value is equal to 10ms; when the wireless link monitoring is for beam failure recovery detection, the first value is equal to 2ms.

[0559] As an embodiment, the second coefficient is configurable.

[0560] As a sub-embodiment of this embodiment, the benefits of this embodiment include greater flexibility.

[0561] As an embodiment, the second coefficient is fixed.

[0562] As a sub-embodiment of this embodiment, the advantages of this embodiment include being easier to implement and less likely to cause ambiguity.

[0563] Example 12

[0564] Embodiment 12 illustrates a structural block diagram of a processing device used in a first node according to an embodiment of the present application; Fig.12 As shown in the attached Fig.12 In the embodiment 12, the processing device 1200 in the first node includes a first receiver 1201, a first transmitter 1202 and a first processor 1203.

[0565] A first receiver 1201 receives first configuration information, where the first configuration information is configured for at least one SSB index for wireless link monitoring;

[0566] The first receiver 1201 performs radio link monitoring according to the RS resources identified by the at least one SSB index;

[0567] The first processor 1203 sends a first type of indication from layer 1 to a higher layer whenever the quality of the radio link on the RS resource identified by the at least one SSB index is worse than a first threshold; the minimum time interval between consecutive first type of indications depends on whether the at least one SSB index belongs to an active BWP;

[0568] Among them, compared with when the at least one SSB index belongs to the active BWP, the minimum time interval between the consecutive first-type indications is longer when the at least one SSB index does not belong to the active BWP; the minimum time interval between the consecutive first-type indications is not less than the shortest period of the RS resources identified by the at least one SSB index; the behavior of performing wireless link monitoring according to the RS resources identified by the at least one SSB index depends on whether the at least one SSB index belongs to the active BWP; when the at least one SSB index does not belong to the active BWP, the behavior of performing wireless link monitoring according to the RS resources identified by the at least one SSB index is performed within a first time window set, and the period of the first time window set is greater than the shortest period of the RS resources identified by the at least one SSB index.

[0569] As an embodiment, when the at least one SSB index does not belong to the active BWP, the first configuration information includes the first time window set; when the at least one SSB index belongs to the active BWP, the first configuration information does not include the first time window set.

[0570] As an embodiment, when the at least one SSB index does not belong to the active BWP, the minimum time interval between consecutive first-type indications depends on the product of a first coefficient and the shortest period of the RS resource identified by the at least one SSB index; the first coefficient is greater than 1; wherein the first node is not configured with DRX.

[0571] As an embodiment, the period of the first time window set depends on the first coefficient.

[0572] As an embodiment, when the at least one SSB index does not belong to the active BWP, the minimum time interval between consecutive first-type indications depends on the period of the first time window set; when the at least one SSB index belongs to the active BWP, the minimum time interval between consecutive first-type indications depends on the shortest period of the RS resources identified by the at least one SSB index.

[0573] As an embodiment, when the at least one SSB index does not belong to the active BWP, the minimum time interval between consecutive first-type indications depends on the sum of a second coefficient and the shortest period of the RS resources identified by the at least one SSB index; the second coefficient is a positive number; wherein the first node is not configured with DRX.

[0574] As an embodiment, the first configuration information explicitly indicates the frequency information of the at least one SSB index only when the at least one SSB index does not belong to the active BWP.

[0575] As an embodiment, when the at least one SSB index does not belong to the active BWP, the first node is not configured with the CSI-RS, NCD-SSB and CD-SSB of the active BWP for wireless link monitoring.

[0576] As an embodiment, the first transmitter 1202 sends first capability information before receiving the first configuration information, and the first capability information indicates that the first node does not support wireless link monitoring on RS resources identified by SSB indexes other than the active BWP without interruption.

[0577] As an embodiment, the first node is a user equipment (UE).

[0578] As an embodiment, the first node is a terminal supporting a large delay difference.

[0579] As an embodiment, the first node is a terminal supporting NTN.

[0580] As an embodiment, the first node is an aircraft or a ship.

[0581] As an embodiment, the first node is a mobile phone or a vehicle-mounted terminal.

[0582] As an embodiment, the first node is a helmet or glasses.

[0583] As an embodiment, the first node is an Internet of Things terminal or an industrial Internet of Things terminal.

[0584] As an embodiment, the first node is a device supporting low-latency and high-reliability transmission.

[0585] As an embodiment, the first receiver 1201 includes at least one of the antenna 452, receiver 454, receiving processor 456, multi-antenna receiving processor 458, controller / processor 459, memory 460, or data source 467 in Example 4.

[0586] As an embodiment, the first transmitter 1202 includes at least one of the antenna 452, transmitter 454, transmit processor 468, multi-antenna transmit processor 457, controller / processor 459, memory 460, or data source 467 in Embodiment 4.

[0587] A person of ordinary skill in the art can understand that all or part of the steps in the above method can be completed by instructing the relevant hardware through a program, and the program can be stored in a computer-readable storage medium, such as a read-only memory, a hard disk or an optical disk. Optionally, all or part of the steps in the above embodiment can also be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiment can be implemented in the form of hardware or in the form of a software function module, and the present application is not limited to any specific form of software and hardware combination. The user equipment, terminal and UE in the present application include but are not limited to drones, communication modules on drones, remote-controlled aircraft, aircraft, small aircraft, mobile phones, tablet computers, notebooks, vehicle-mounted communication equipment, wireless sensors, Internet cards, Internet of Things terminals, RFID terminals, NB-IoT terminals, MTC (Machine Type Communication, machine type communication) terminals, eMTC (enhancedMTC, enhanced MTC) terminals, data cards, Internet cards, vehicle-mounted communication equipment, low-cost mobile phones, low-cost tablet computers, satellite communication equipment, ship communication equipment, NTN user equipment and other wireless communication equipment. The base stations or system equipment in this application include but are not limited to macrocell base stations, microcell base stations, home base stations, relay base stations, gNB (NR Node B) NR Node B, TRP (Transmitter Receiver Point), NTN base stations, satellite equipment, flight platform equipment and other wireless communication equipment.

[0588] The present invention may be implemented in other specified forms without departing from its core or essential features. Therefore, the embodiments disclosed herein should be considered as illustrative rather than restrictive in any way. The scope of the invention is determined by the appended claims rather than the preceding description, and all modifications within their equivalent meanings and regions are considered to be included therein.

Claims

1. A first node for wireless communication, wherein: include: A first receiver receives first configuration information, wherein the first configuration information is configured for at least one SSB index for wireless link monitoring; The first receiver performs radio link monitoring according to the RS resources identified by the at least one SSB index; A first processor, whenever the quality of the radio link on the RS resource identified by the at least one SSB index is worse than a first threshold, sends a first type of indication from layer 1 to a higher layer; the minimum time interval between consecutive first type of indications depends on whether the at least one SSB index belongs to an active BWP; Among them, compared with when the at least one SSB index belongs to the active BWP, the minimum time interval between the consecutive first-type indications is longer when the at least one SSB index does not belong to the active BWP; the minimum time interval between the consecutive first-type indications is not less than the shortest period of the RS resources identified by the at least one SSB index; the behavior of performing wireless link monitoring according to the RS resources identified by the at least one SSB index depends on whether the at least one SSB index belongs to the active BWP; when the at least one SSB index does not belong to the active BWP, the behavior of performing wireless link monitoring according to the RS resources identified by the at least one SSB index is performed within a first time window set, and the period of the first time window set is greater than the shortest period of the RS resources identified by the at least one SSB index.

2. The first node according to claim 1, characterized in that: When the at least one SSB index does not belong to the active BWP, the first configuration information includes the first time window set; when the at least one SSB index belongs to the active BWP, the first configuration information does not include the first time window set.

3. The first node according to claim 1 or 2, characterized in that: When the at least one SSB index does not belong to the active BWP, the minimum time interval between consecutive first-type indications depends on a product of a first coefficient and a shortest period of the RS resource identified by the at least one SSB index; the first coefficient is greater than 1; The first node is not configured with DRX.

4. The first node according to claim 3, characterized in that: The period of the first set of time windows is used to determine the first coefficient.

5. The first node according to claim 1 or 2, characterized in that: When the at least one SSB index does not belong to the active BWP, the minimum time interval between consecutive first-type indications depends on the period of the first time window set; when the at least one SSB index belongs to the active BWP, the minimum time interval between consecutive first-type indications depends on the shortest period of the RS resources identified by the at least one SSB index.

6. The first node according to claim 1 or 2, characterized in that: When the at least one SSB index does not belong to the active BWP, the minimum time interval between consecutive first-type indications depends on the sum of a second coefficient and the shortest period of the RS resource identified by the at least one SSB index; the second coefficient is a positive number; The first node is not configured with DRX.

7. The first node according to any one of claims 1 to 6, characterized in that: Only when the at least one SSB index does not belong to the active BWP, the first configuration information explicitly indicates the frequency information of the at least one SSB index.

8. The first node according to any one of claims 1 to 7, characterized in that: When the at least one SSB index does not belong to the active BWP, the first node is not configured with the CSI-RS, NCD-SSB and CD-SSB of the active BWP for radio link monitoring.

9. The first node according to any one of claims 1 to 8, characterized in that: include: The first transmitter, before receiving the first configuration information, sends first capability information indicating that the first node does not support radio link monitoring on RS resources identified by SSB indexes other than the active BWP without interruption.

10. A method in a first node for wireless communication, wherein: include: A first receiver receives first configuration information, wherein the first configuration information is configured for at least one SSB index for wireless link monitoring; The first receiver performs radio link monitoring according to the RS resources identified by the at least one SSB index; A first processor, whenever the quality of the radio link on the RS resource identified by the at least one SSB index is worse than a first threshold, sends a first type of indication from layer 1 to a higher layer; the minimum time interval between consecutive first type of indications depends on whether the at least one SSB index belongs to an active BWP; Among them, compared with when the at least one SSB index belongs to the active BWP, the minimum time interval between the consecutive first-type indications is longer when the at least one SSB index does not belong to the active BWP; the minimum time interval between the consecutive first-type indications is not less than the shortest period of the RS resources identified by the at least one SSB index; the behavior of performing wireless link monitoring according to the RS resources identified by the at least one SSB index depends on whether the at least one SSB index belongs to the active BWP; when the at least one SSB index does not belong to the active BWP, the behavior of performing wireless link monitoring according to the RS resources identified by the at least one SSB index is performed within a first time window set, and the period of the first time window set is greater than the shortest period of the RS resources identified by the at least one SSB index.

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