A method and apparatus for wireless communication

Abstract

This application discloses a method and apparatus for wireless communication, including a first receiver receiving first configuration information configured as at least one SSB index for wireless link monitoring; the first receiver performing wireless link monitoring based on RS resources identified by the at least one SSB index; and a first processor sending a first type 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; the method proposed in this application is beneficial for improving performance, reducing resource consumption, and lowering power consumption.

Description

Technical Field

[0001] This application relates to transmission methods and apparatus in wireless communication systems, and particularly to wireless link monitoring, especially wireless link monitoring based on SSB other than the active BWP. Background Technology

[0002] The application scenarios of future wireless communication systems are becoming increasingly diversified, and different application scenarios place different performance requirements on 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 conduct research on New Radio (NR) (or Fifth Generation, 5G). The 3GPP RAN #75 plenary meeting adopted the NR WI (Work Item), and began the standardization work of NR.

[0003] In communications, both LTE (Long Term Evolution) and 5G NR involve reliable and accurate information reception, optimized energy efficiency, determination of information validity, flexible resource allocation, scalable system architecture, efficient non-access stratum information processing, low service interruption and drop rate, and support for low power consumption. These are crucial for normal communication between base stations and user equipment, rational resource scheduling, and balanced system load. They are the cornerstone of high throughput, meeting the communication needs of various services, improving spectrum utilization, and enhancing service quality. They are indispensable for eMBB (enhanced Mobile Broadband), URLLC (Ultra Reliable Low Latency Communication), and eMTC (enhanced Machine Type Communication). Meanwhile, there are extensive needs in IIoT (Industrial Internet of Things), V2X (Vehicle-to-X), Device-to-Device communication, unlicensed spectrum communication, user communication quality monitoring, network planning and optimization, NTN (Non-Territorial Network), TN (Territorial Network), dual connectivity systems, radio resource management and codebook selection for multiple antennas, signaling design, neighbor cell management, service management, and beamforming. Information transmission methods are divided into broadcast and unicast, both essential for 5G systems as they are highly helpful in meeting the above requirements. The UE can connect to the network directly or via a relay.

[0004] As system scenarios and complexity continue to increase, higher demands are placed on reducing outage rates, lowering latency, enhancing reliability and system stability, improving service flexibility, and saving power. Furthermore, system design must consider compatibility between different systems and versions. Meanwhile, the types of services supported by 5G systems are becoming increasingly diverse, and these new services also bring corresponding challenges to the system.

[0005] The 3GPP standardization organization has done relevant standardization work on 5G, resulting in a series of standards. The content of these standards can be found here:

[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 crucial function. Determining the minimum time interval between consecutive first-type indications is a problem that needs to be solved. Researchers have found that wireless link monitoring involves sending a first-type indication from Layer 1 to higher layers whenever the wireless link quality on all RS (Reference Signal) resources identified by at least one SSB index deteriorates below a first threshold. When a higher layer receives multiple consecutive first-type indications, it considers a problem or failure to have occurred. However, the minimum time interval for sending consecutive first-type indications needs to be clearly defined, as this can affect the performance of wireless link monitoring and the signaling load. Therefore, the minimum time interval for sending consecutive first-type indications cannot be too small, as this may lead to inaccuracies, excessive signaling load, and unexpected failures. Researchers have also found that in existing technologies, 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. Utilizing SSBs outside the active BWP for wireless link monitoring is a new problem that needs to be solved. Researchers have found that performing radio link monitoring based on SSBs other than the active BWP may offer several advantages, such as reduced system overhead, as SSBs within the active BWP can be omitted. They also found that for scenarios requiring radio link monitoring based on SSBs other than the active BWP within a time window, the minimum interval between consecutive Type I indication transmissions needs to be longer.

[0012] To address the problems mentioned above, this application provides a solution.

[0013] It should be noted that, unless otherwise specified, the embodiments and features in any node of this application can be applied to any other node. Unless otherwise specified, the embodiments and features in the embodiments of this application can be arbitrarily combined with each other. Furthermore, the method proposed in this application can also be used to solve other problems in communication systems.

[0014] As an example, the interpretation of the terminology in this application is based on the definitions in the 3GPP specification protocol TS38 series.

[0015] As an example, the interpretation of terms in this application is based on the definitions in the 3GPP specification protocol TS37 series.

[0016] This application discloses a method used in a first node of wireless communication, comprising:

[0017] Receive first configuration information, which is configured as at least one SSB index for wireless link monitoring;

[0018] The first receiver performs radio link monitoring based on the RS resource 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 indication is sent from layer 1 to higher layers; the minimum time interval between consecutive first type indications depends on whether the at least one SSB index belongs to an active BWP;

[0020] Specifically, compared to when at least one SSB index belongs to the active BWP, when at least one SSB index does not belong to the active BWP, the minimum time interval between consecutive first-type indications is longer; the minimum time interval between consecutive first-type indications is not less than the shortest period of the RS resource identified by at least one SSB index; the action of performing radio link monitoring based on the RS resource identified by at least one SSB index depends on whether at least one SSB index belongs to the active BWP; when at least one SSB index does not belong to the active BWP, the action of performing radio link monitoring based on the RS resource identified by at least one SSB index is performed within a first time window set, the period of the first time window set being greater than the shortest period of the RS resource identified by at least one SSB index.

[0021] As an example, the problems to be solved by this application include: how to determine the minimum time interval between consecutive first-type indications; how to determine the minimum time interval between consecutive first-type indications when the action performs radio link monitoring based on the RS resource identified by the at least one SSB index within a first time window set; and 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 example, the advantages of the above method include: more accurate determination of the minimum time interval between consecutive first-type indications; better support for performing radio link monitoring based on SSBs other than active BWPs; greater system resource saving; and greater flexibility.

[0023] Specifically, according to one aspect of this application, the action of performing radio link monitoring based on the RS resource identified by the at least one SSB index is for the purpose of PCell or for the purpose of radio link monitoring of the active BWP.

[0024] Specifically, according to one aspect of this 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 this 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 this application, the period of the first time window set depends on the first coefficient.

[0028] Specifically, according to one aspect of this 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 this 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 was not configured with DRX.

[0031] Specifically, according to one aspect of this 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 this application, when the at least one SSB index does not belong to the active BWP, the first node is not configured with the active BWP's CSI-RS (Channel State Information-Reference Signal), NCD-SSB (None Cell Defining Synchronization Signal Block), and CD-SSB (Cell Defining Synchronization Signal Block) for radio link monitoring.

[0033] Specifically, according to one aspect of this application, a 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 indices other than the active BWP without interruption.

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

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

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

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

[0038] Specifically, according to one aspect of this application, the first node is an in-vehicle terminal.

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

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

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

[0042] A first receiver receives first configuration information, which is configured as at least one SSB index for wireless link monitoring.

[0043] The first receiver performs radio link monitoring based on the RS resource identified by the at least one SSB index;

[0044] The first processor sends a first type indication from layer 1 to higher layers whenever the radio 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.

[0045] Specifically, compared to when at least one SSB index belongs to the active BWP, when at least one SSB index does not belong to the active BWP, the minimum time interval between consecutive first-type indications is longer; the minimum time interval between consecutive first-type indications is not less than the shortest period of the RS resource identified by at least one SSB index; the action of performing radio link monitoring based on the RS resource identified by at least one SSB index depends on whether at least one SSB index belongs to the active BWP; when at least one SSB index does not belong to the active BWP, the action of performing radio link monitoring based on the RS resource identified by at least one SSB index is performed within a first time window set, the period of the first time window set being greater than the shortest period of the RS resource identified by at least one SSB index.

[0046] As an example, compared with conventional solutions, this application has the following advantages:

[0047] To save resources and network power, an active BWP does not require the configuration of an SSB or CSI-RS for wireless link monitoring.

[0048] Wireless link monitoring is more accurate and reliable.

[0049] The system is more flexible and can support different types of UEs, including UEs that require an interruption to measure SSBs other than active BWPs to perform radio link monitoring; the network can also support such UEs through first-time aggregation.

[0050] This can reduce unreliable measurements, and therefore reduce failures caused by inappropriate wireless links. Attached Figure Description

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

[0052] Figure 1A flowchart illustrating receiving first configuration information according to an embodiment of this application, performing radio link monitoring based on RS resources identified by at least one SSB index, and sending a first type of indication from layer 1 to higher layers whenever the radio link quality on RS resources 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 this application is shown;

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

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

[0056] Figure 5 A flowchart of wireless signal transmission according to an embodiment of this application is shown;

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

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

[0059] Figure 8 A schematic diagram illustrating the minimum time interval between consecutive first-type indications according to an embodiment of this application is shown;

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

[0061] Figure 10 A schematic diagram is shown illustrating the minimum time interval between consecutive first-type indications according to an embodiment of the present application, which depends on the period of a first time window set.

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

[0063] Figure 12 A schematic diagram of a processing apparatus for a first node according to an embodiment of this application is illustrated. Implementation

[0064] The technical solution of this application will be further described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be arbitrarily combined with each other.

[0065] Example 1

[0066] Example 1 illustrates a flowchart of receiving first configuration information according to an embodiment of this application, performing radio link monitoring based on RS resources identified by at least one SSB index, and sending a first type indication from layer 1 to higher layers whenever the radio link quality on RS resources identified by at least one SSB index is worse than a first threshold, as shown in the attached flowchart. Figure 1 As shown. (Attached) Figure 1 In the diagram, each box represents a step. It is particularly important to emphasize that the order of the boxes does not represent the chronological order of the steps they represent.

[0067] In Embodiment 1, the first node in this application receives first configuration information in step 101; performs radio link monitoring based on RS resources identified by at least one SSB index in step 102; and sends a first type indication from layer 1 to higher layers whenever the radio link quality on RS resources identified by at least one SSB index is worse than a first threshold in step 103.

[0068] Wherein, the first configuration information is configured as 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 to when the at least one SSB index belongs to the active BWP, the minimum time interval between 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 consecutive first-type indications is not less than the shortest period of the RS resource identified by the at least one SSB index; the action of performing wireless link monitoring based on the RS resource identified by the at least one SSB index depends on whether the at least one SSB index belongs to an active BWP; when the at least one SSB index does not belong to the active BWP, the action of performing wireless link monitoring based on the RS resource identified by the at least one SSB index is performed within a first time window set, the period of the first time window set being greater than the shortest period of the RS resource identified by the at least one SSB index.

[0069] As an example, the first node is UE (User Equipment).

[0070] As an example, the first node is in RRC connected state.

[0071] As an example, the first node is not a RedCap (Reduced Capability) UE.

[0072] As an example, the first node does not indicate that it is a RedCap UE.

[0073] As an example, the first node did not use the shared frequency channel for access.

[0074] As an example, the interpretation of terms in this application is based on the definitions in the 3GPP specification protocol TS38 series.

[0075] As an example, any parameter not explicitly stated in this application may be a network instruction or network configuration or a pre-configuration.

[0076] As an example, any parameter in this application that is not explicitly stated can be determined automatically by the internal algorithm of the first node when not instructed by the network.

[0077] As an example, any parameter in this application may be initialized to 0 when not instructed by the network.

[0078] As an example, any parameter in this application can be set to a random number when not instructed by the network.

[0079] As an example, any parameter in this application can be selected based on simulation results when not instructed by the network.

[0080] As an example, the serving cell refers to the cell where the UE camps. Performing a cell search includes the UE searching for a suitable cell within a 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 camping on a cell; that is, a camped cell is the serving cell for the UE. Camping on a cell in RRC idle or RRC inactive state has the following advantages: it allows 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 perform initial access on the control channel of the camped 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.

[0081] As an example, for a UE in RRC connected state without CA / DC (carrier aggregation / dual connectivity) configured, there is only one serving cell, including the primary cell. For a UE in RRC connected state with CA / DC configured, the serving cell is used to indicate the set of cells including the special cell (SpCell) and all cells from smaller cells. The primary cell is an MCG (Master Cell Group) cell, operating on the primary frequency. The UE performs the initial connection establishment process or initiates connection reconstruction on the primary cell. For dual connectivity 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 connectivity operation, the special cell refers to the PCell.

[0082] As an example, the frequency at which the SCell (Secondary Cell) operates is the frequency of the cell.

[0083] As an example, the individual content of an information element is called a field.

[0084] As an example, MR-DC (Multi-Radio Dual Connectivity) refers to dual connectivity between an E-UTRA and an NR node, or dual connectivity between two NR nodes.

[0085] As an example, in MR-DC, the radio access node that provides control plane connection to the core network is the master node, which can be a master eNB, a master ng-eNB, or a master gNB.

[0086] As an example, MCG refers to a group of serving cells associated with the master node in MR-DC, including SpCell, and optionally, one or more SCell.

[0087] As an example, PCell is the SpCell of MCG.

[0088] As an example, PSCell is the SpCell of SCG.

[0089] As an example, in MR-DC, no control plane connection to the core network is provided; instead, the radio access node that provides additional resources to the UE is a slave node. The slave node can be an en-gNB, an ng-eNB, or a gNB.

[0090] As an example, in MR-DC, the set of serving cells associated with a slave node is an SCG (secondary cell group), which includes SpCell and, optionally, one or more SCells.

[0091] As an example, the first node is configured with at least one MCG, and the MCG configured on the first node includes at least one SCell.

[0092] As an example, the first node is configured with MCG and SCG.

[0093] As a sub-example of this embodiment, the MCG configured for the first node includes at least one SCell.

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

[0095] As an example, the first node was configured with only the MCG and not the SCG.

[0096] As a sub-example of this embodiment, the method proposed in this application can also achieve beneficial effects in scenarios where SCG is not configured.

[0097] As an example, the MCG of the first node includes only PCell and not SCell.

[0098] As a sub-example of this embodiment, the method proposed in this application can also achieve beneficial effects in scenarios where SCells are not configured.

[0099] As an example, the first node does not use CA.

[0100] As a sub-example of this embodiment, the method proposed in this application can also achieve beneficial effects in scenarios where CA is not used.

[0101] As an example, SSB is equivalent to the synchronization signal and PBCH block, SS / PBCH block, SS-Block.

[0102] As an example, the first configuration information is an information block of an RRC message.

[0103] As one example, the first configuration information includes RRC messages.

[0104] As one embodiment, the first configuration information includes configurations related to the reference signal.

[0105] As an example, the first configuration information is configured to the first node via unicast.

[0106] As an example, the first configuration information is generated by the RRC layer.

[0107] As one embodiment, the first configuration information is or includes radioLinkMonitoringConfig.

[0108] As an example, the RadioLinkMonitoringRS included in the first configuration information is used to configure the at least one SSB index.

[0109] As an example, the RadioLinkMonitoringRS included in the first configuration information is used to configure at least a portion of the SSB indexes of the at least one SSB index.

[0110] As an example, the BeamLinkMonitoringRS included in the first configuration information is used to configure at least a portion of the indexes of the at least one SSB index.

[0111] As an example, the detectionResource included in the first configuration information indicates the at least one SSB index.

[0112] As a sub-implementation of this embodiment, the first configuration information includes a list, and each item in the list includes a detectionResource.

[0113] As an example, the ssb-index included in the first configuration information indicates the at least one SSB index.

[0114] As an example, the first configuration information indicates that the purpose of the at least one SSB index is wireless link monitoring.

[0115] As one example, the wireless link monitoring includes wireless link failure.

[0116] As one example, the wireless link monitoring includes beam failure detection.

[0117] As one example, the wireless link monitoring includes wireless link monitoring and beam failure detection.

[0118] As one example, the wireless link monitoring includes beam link monitoring.

[0119] As an example, each SSB index in the at least one SSB index is used to identify an SSB.

[0120] As an example, the network indicates which SSB index identifies the SSB received by the first node.

[0121] As an example, the system information associated with the SSB received by the first node indicates which SSB index identifies this SSB.

[0122] As an example, the RS resource identified by the at least one SSB index is an RLM-RS resource.

[0123] As an example, the at least one SSB index is the q0 set.

[0124] As an example, the RS resource identified by the at least one SSB index is the q0 set.

[0125] As an example, the first configuration information is used to configure the purpose of the at least one SSB index.

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

[0127] As an example, the first configuration information configures the period of the SSB identified by each SSB index in the at least one SSB index.

[0128] As an example, the first configuration information is the at least one SSB index configured for the active BWP.

[0129] As an example, the RRC message that includes the first configuration information is RRCReconfiguration.

[0130] As an example, the RRC message that includes the first configuration information is RRCConnectionReconfiguration.

[0131] As an example, the RRC message that includes the first configuration information is RRCReconfigurationNR.

[0132] As an example, the RRC message that includes the first configuration information is RRCReconfigurationENR.

[0133] As an example, the configuration information of a BWP configured by an RRC message that includes the first configuration information includes the first configuration information.

[0134] As a sub-example of this embodiment, the BWP configured by the RRC message including the first configuration information is the active BWP.

[0135] As one example, the RRC message including the first configuration information configures an SSB index for radio link monitoring for each BWP.

[0136] As an example, a UE has only one active BWP.

[0137] As an example, a UE's current BWP is the active BWP.

[0138] As an example, after accessing the network, which BWP is configured as the active BWP is determined by a network-based algorithm, such as load balancing of each BWP to the UE, and selecting an appropriate BWP based on the traffic volume of the services to be transmitted by the UE. Configuring an overly broad BWP wastes the UE's energy, while configuring an overly narrow BWP cannot meet the UE's service requirements.

[0139] As an example, for a BWP, the number of SSB indexes configured depends on the network implementation, such as the number of SSBs being transmitted. When the number of transmitted SSBs is sufficient, at least one can be selected from them according to a fixed algorithm or randomly.

[0140] As an example, for a BWP, the number of SSB indices configured depends on the carrier frequency. For FR1 (frequency range 1) below 3 GHz, a maximum of 2 SSB indices can be configured for wireless link monitoring; for FR1 above 3 GHz, a maximum of 4 SSB indices can be configured for wireless link monitoring; and for FR2 (frequency range 2), a maximum of 8 SSB indices can be configured for wireless link monitoring.

[0141] As an example, an RS resource is a resource used for RS.

[0142] As an example, RS resources are resources reserved for RS.

[0143] As an example, RS resources are resources allocated to RS.

[0144] As an example, RS resources are resources for transmitting RS.

[0145] As an example, performing radio link monitoring based on the RS resources identified by the at least one SSB index includes performing radio link monitoring on all RS resources identified by the at least one SSB index.

[0146] As an example, performing radio link monitoring based on the RS resource identified by the at least one SSB index includes: performing measurements on the RS resource identified by the at least one SSB index, and determining the radio link quality based on the measurement results.

[0147] As an example, the measurement results obtained from measurements performed on RS resources include RSRP (Reference Signal Receiving Power).

[0148] As an example, the measurement results obtained from measurements performed on RS resources include RSRQ (Reference Signal Receiving Quality).

[0149] As an example, the measurement results obtained from measurements performed on RS resources include SNR (signal-noise ratio).

[0150] As an example, determining the quality of a wireless link based on measurement results includes: determining whether the measurement results are higher than a specific threshold.

[0151] As an example, determining the quality of a wireless link based on measurement results includes: determining whether the measurement results are below a specific threshold.

[0152] As an example, determining the wireless link quality based on the measurement results includes: judging what the wireless link quality is under the measurement results, or whether it is worse than a first threshold.

[0153] As an example, determining the wireless link quality based on the measurement results includes: estimating the reception performance based on the measurement results, for example, estimating the wireless link quality through a table mapping method.

[0154] As a sub-example of this embodiment, the estimated wireless link quality is for wireless link quality on a fixed-configuration PDCCH.

[0155] As a sub-example of this embodiment, the table used for estimation can be obtained through simulation or live network measurement.

[0156] As an example, the wireless link quality includes BLER (block error ratio).

[0157] As a sub-example of this embodiment, the estimated wireless link quality is the block error rate on a fixed-configuration PDCCH.

[0158] As an example, the estimated radio link quality is the block error rate over a fixed-configuration PDSCH.

[0159] As an example, the estimated wireless link quality is the block error rate over a fixed-configuration PBCH.

[0160] As an example, the fixed configuration for the channel to be estimated is prior art.

[0161] As an example, the wireless link quality includes BLER (block error ratio) on a specifically configured channel.

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

[0163] As an example, the meaning of a fixed-configuration 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 transmitted on a channel with the measurement result quality.

[0164] As an example, the meaning of a fixed-configuration PDCCH includes: the configuration of the PDCCH, such as the coding rate and the code block size, is the fixed configuration.

[0165] As an example, determining the wireless link quality based on the measurement results includes: determining whether the estimated BLER is lower than a first threshold.

[0166] As an example, the first threshold is equal to 2%.

[0167] As an example, the first threshold is equal to 10%.

[0168] As an example, the first threshold is fixed.

[0169] As an example, the first threshold is configurable.

[0170] As one example, the first threshold depends on the wireless access technology.

[0171] As an example, the first threshold depends on the purpose of wireless link monitoring.

[0172] As an example, when the radio link monitoring is for RLF (radio link failure), the first threshold is 10%.

[0173] As an example, when the wireless link monitoring is for beam management, the first threshold is 5% or configurable.

[0174] As one embodiment, determining the radio 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 radio link quality on each RS resource identified by each SSB index in the at least one SSB index based on the measurement results.

[0175] As an example, 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 based on the measurement results on the RS resources identified by each SSB index in the at least one SSB index.

[0176] As an example, determining the wireless link quality based on 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 the synthesis of the measurement results on the RS resources identified by each SSB index in the at least one SSB index, such as the average of the measurement results.

[0177] As an example, determining the radio link quality based on measurement results includes: performing measurements on all RS resources identified by each SSB index in the at least one SSB index, and estimating a radio link quality based on the measurement results on all RS resources identified by each SSB index in the at least one SSB index.

[0178] As an example, the resources occupied, allocated, or configured by the SSB identified by the at least one SSB index are the RS resources identified by the at least one SSB index.

[0179] As an example, the meaning of the sentence "Whenever the radio link quality on the RS resource identified by the at least one SSB index is worse than the first threshold" includes: performing measurements on each RS resource identified by each SSB index in the at least one SSB index, and estimating the radio link quality on each RS resource identified by each SSB index in the at least one SSB index based on the measurement results. "Whenever the radio link quality on the RS resource identified by the at least one SSB index is worse than the first threshold" means that the radio link quality on all RS resources identified by the at least one SSB index is worse than the first threshold.

[0180] As an example, the meaning of the sentence "Whenever the radio link quality on the RS resource identified by the at least one SSB index is worse than the first threshold" includes: performing measurements on the RS resource identified by each SSB index in the at least one SSB index, and estimating the radio link quality based on the measurement results on the RS resource identified by each SSB index in the at least one SSB index. "Whenever the radio link quality on the RS resource identified by the at least one SSB index is worse than the first threshold" means that the radio link quality on all RS resources identified by the at least one SSB index is worse than the first threshold.

[0181] As an example, the meaning of the sentence "Whenever the radio link quality on the RS resource identified by the at least one SSB index is worse than a first threshold" includes: taking measurements on the RS resource identified by each SSB index in the at least one SSB index, and estimating a radio link quality based on the synthesis of the measurement results on the RS resource identified by each SSB index in the at least one SSB index, such as averaging the measurement results, such as weighted averaging, such as taking the maximum value, such as taking the minimum value, such as removing the maximum value and then averaging; "Whenever the radio link quality on the RS resource identified by the at least one SSB index is worse than the first threshold" refers to the estimated radio link quality based on the synthesis of the measurement results on the RS resource identified by each SSB index in the at least one SSB index being worse than the first threshold.

[0182] As an example, the meaning of the sentence "Whenever the radio link quality on the RS resource identified by the at least one SSB index is worse than a first threshold" includes: performing measurements on all RS resources identified by each SSB index in the at least one SSB index, and estimating a radio 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 radio link quality on the RS resource identified by the at least one SSB index is worse than the first threshold" refers to the estimated radio link quality being worse than the first threshold based on the measurement results on all RS resources identified by each SSB index in the at least one SSB index.

[0183] As a sub-implementation of this embodiment, when the at least one SSB index belongs to the active BWP, the RS resource identified by the at least one SSB index is not limited by the first time window; when the at least one SSB index does not belong to the active BWP, the RS resource identified by the at least one SSB index is an RS resource within the first time window set.

[0184] As an example, the meaning of the sentence "Whenever the radio link quality on the RS resource identified by the at least one SSB index is worse than a first threshold" includes: when the at least one SSB index belongs to the active BWP, measurements are performed on all RS resources identified by each SSB index in the at least one SSB index, and a radio 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 radio link quality on the RS resource identified by the at least one SSB index is worse than the first threshold" refers to the estimated radio link quality being worse than the first threshold based on the measurement results on all RS resources identified by each SSB index in the at least one SSB index.

[0185] As an example, the meaning of the sentence "Whenever the radio link quality on the RS resource identified by the at least one SSB index is worse than a first threshold" includes: when the at least one SSB index does not belong to the active BWP, measurements are performed on the RS resources within the first time window set identified by each of the at least one SSB indexes, and a radio link quality is estimated based on the measurement results on the RS resources within the first time window set identified by each of the at least one SSB indexes; "Whenever the radio link quality on the RS resource identified by the at least one SSB index is worse than the first threshold" refers to the estimated radio link quality being worse than the first threshold based on the measurement results on the RS resources within the first time window set identified by each of the at least one SSB indexes.

[0186] As an example, the meaning of the sentence "whenever the radio link quality on the RS resource identified by the at least one SSB index is worse than the first threshold" is or includes: whenever the radio link quality on all RS resources identified by the at least one SSB index is worse than the first threshold.

[0187] As a sub-implementation 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 limited by the first time window set.

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

[0189] As an example, layer 1 is a physical layer.

[0190] As an example, layer 1 is the PHY sublayer in example 3.

[0191] As an example, the higher layer is the higher layer of layer 1.

[0192] As an example, the higher layer includes one of the MAC layer, RRC layer, and NAS layer.

[0193] As an example, the higher layer is the RRC layer.

[0194] As an example, the first type of indication is or includes an out-of-sync indication.

[0195] As an example, the first type of indication is or includes a beam failure indication for a TRP.

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

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

[0198] As an example, when the first type of indication is out-of-sync, the higher layer is the RRC layer.

[0199] As an example, when the first type of indication is a beam failure instance indication, the higher layer is the MAC layer.

[0200] As an example, the consecutive first type of indications are two consecutive first type of indications without any other indications between them.

[0201] As an example, the consecutive first type of indication is two consecutive out-of-sync indications that do not include an in-sync indication.

[0202] As an example, the consecutive first type of indication is that no radio link quality on all RS resources identified by the at least one SSB index is found to be worse than the first threshold between two consecutive beam failure indications.

[0203] As an example, the consecutive first type of indication is that between two consecutive beam failure instance indications, no radio link quality on all RS resources identified by the at least one SSB index is found to be worse than the first threshold.

[0204] As an example, the consecutive first type indications are those in which no radio link quality on all RS resources identified by the at least one SSB index is found to be worse than the first threshold between two consecutive first type indications.

[0205] As an example, the consecutive first type of indication is that no radio link quality on all RS resources identified by the at least one SSB index is found to be worse than the first threshold between two consecutive out-of-sync indications.

[0206] As an example, the consecutive first type indications are two first type indications that are closest in time.

[0207] As a sub-implementation of this embodiment, the first type of indication is for the same cell, and the first type of indication is out-of-sync.

[0208] As a sub-implementation 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.

[0209] As a sub-implementation 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.

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

[0211] As an example, the first type of indication is for the at least one SSB index.

[0212] As an example, the statement that at least one SSB index belongs to the active BWP means that the SSB identified by the at least one SSB index belongs to the active BWP.

[0213] As an example, the statement that at least one SSB index belongs 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.

[0214] As an example, the statement that 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 radio link monitoring of the active BWP.

[0215] As an example, the statement that at least one SSB index does not belong to the active BWP means that at least one SSB index belongs to something other than the active BWP.

[0216] As an example, the statement that at least one SSB index does not belong to the active BWP means that at least one SSB index is outside the active BWP.

[0217] As an example, the statement that at least one SSB index does not belong to the active BWP means that none of the SSBs identified by the at least one SSB index belong to the active BWP.

[0218] As an example, the statement that at least one SSB index does not belong to the active BWP means that the SSBs identified by the at least one SSB index are all outside the active BWP.

[0219] As an example, the statement that at least one SSB index does not belong 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.

[0220] As an example, the statement that the at least one SSB index does not belong 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.

[0221] As an example, the at least one SSB index either belongs to all of the active BWP or does not belong to any of the active BWP.

[0222] As an example, the meaning of "the minimum time interval between consecutive first-type indications is longer when the at least one SSB index does not belong to the active BWP" compared to "the at least one SSB index belongs to the active BWP" includes: the minimum time interval between consecutive first-type indications needs to be defined or required regardless of whether the at least one SSB index belongs to the active BWP or not.

[0223] As an example, the meaning of "the minimum time interval between consecutive first-type indications is longer when the at least one SSB index belongs to the active BWP, compared to 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 consecutive first-type indications.

[0224] As an example, the meaning of "the minimum time interval between consecutive first-type indications is longer than the minimum SSB index belonging to the active BWP" when the minimum SSB index does not belong to the active BWP includes: when the minimum SSB index belongs to the active BWP, the minimum time interval between consecutive first-type indications is a first time length; when the minimum SSB index does not belong to the active BWP, the minimum time interval between consecutive first-type indications is a second time length, and the second time length is greater than the first time length.

[0225] As a sub-implementation of this embodiment, the second time length needs to be greater than the first time length.

[0226] As an example, the meaning of the minimum time interval between consecutive first-type indications being no less than the shortest period of the RS resource identified by the at least one SSB index includes: the minimum time interval between consecutive first-type indications being greater than 0.

[0227] As an example, the shortest period of the RS resource identified by the at least one SSB index means that the RS resource identified by each SSB index in the at least one SSB index is periodic.

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

[0229] As an example, those skilled in the art should understand that, unless otherwise specified, the period at which the first node acquires the RS resources identified by the SSB index is prior art, determined, for example, by network instruction or by receiving multiple RS resources identified by the SSB index.

[0230] As an example, the shortest period of the RS resource identified by the at least one SSB index refers to the shortest period among the periodicity of the RS resource identified by each SSB index in the at least one SSB index.

[0231] As an example, the shortest period of the RS resource identified by the at least one SSB index refers to the following: if the at least one SSB index includes multiple SSB indexes, since each SSB index in the at least one SSB index identifies an RS resource with one period, there are multiple periods, the shortest of which is the shortest period.

[0232] As an example, the candidate period for the RS resource identified by any of the at least one SSB index includes one of 5ms, 10ms, 20ms, 40ms, 80ms, and 160ms.

[0233] As an example, the shortest period of the RS resource identified by the at least one SSB index is not less than 5ms.

[0234] As an example, the meaning of performing radio link monitoring based on the RS resources identified by the at least one SSB index within a first time window set is or includes: the first node does not perform the radio link monitoring on the RS resources identified by the at least one SSB index outside the first time window set.

[0235] As an example, the meaning of performing radio link monitoring based on the RS resources identified by the at least one SSB index within a first time window set is or includes: when the first node performs the radio link monitoring, it ignores the RS resources identified by the at least one SSB index outside the first time window set.

[0236] As one embodiment, the first time window set includes multiple time windows.

[0237] As an example, the time windows included in the first time window set do not overlap in the time domain.

[0238] As an example, at least a portion of the RS resources identified by the at least one SSB index belong to the first time window set.

[0239] As an example, at least some of the RS resources identified by the at least one SSB index do not belong to the first time window set.

[0240] As an example, the advantages of the above method are: the first node only needs to perform wireless link monitoring on a portion of the RS resources, which saves more power and has less impact on active BWPs.

[0241] As an example, the first time window set is periodic.

[0242] As an example, each time window in the first time window set has the same length.

[0243] As an example, the period of the first time window set is a repetition period.

[0244] As one embodiment, the first configuration information indicates the first time window set.

[0245] As an example, when the at least one SSB index does not belong to the active BWP, the first node needs to interrupt to perform radio link monitoring based on the RS resource identified by the at least one SSB index.

[0246] As an example, the interruption refers to the interruption of receiving the active BWP.

[0247] As an example, the interruption refers to the interruption of reception of at least the PDSCH (physical downlink shared channel) of the active BWP.

[0248] As an example, the interruption refers to the interruption of the transmission of the active BWP.

[0249] As an example, the interruption refers to the interruption of the transmission of at least the PUSCH (physical uplink shared channel) of the active BWP.

[0250] As an example, the interruption refers to the need for a gap.

[0251] As an example, the interruption refers to the need for a measurement gap.

[0252] As an example, the interruption refers to an adverse impact on the communication of the active BWP.

[0253] As one embodiment, the first time window set includes at least one measurement gap.

[0254] As an example, the first time window set is indicated by SMTC (SS / PBCH block measurement timing configuration).

[0255] As an example, the first configuration information indicates the SMTC for the at least one SSB index.

[0256] As a sub-example of this embodiment, the first configuration information indicates the SMTC for each SSB index for the at least one SSB index.

[0257] In one sub-implementation of this embodiment, the first configuration information indicates that the SMTC for the at least one SSB index is the first time window set.

[0258] In one sub-implementation of this embodiment, the first configuration information indicates the SMTC indication for the at least one SSB index or the corresponding first time window set.

[0259] As an example, 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.

[0260] As an example, the length of any time window in the first time window set is equal to or not less than half a frame.

[0261] As an example, the length of any time window in the first time window set is equal to or not less than 5ms.

[0262] As an example, the advantages of indicating the first time window set via SMTC include: simplicity of implementation.

[0263] As an example, the period of the first time window set indicated by SMTC is less than the SSB period indicated by ssb-periodicityServingCell of the network.

[0264] As an example, the period of the first time window set indicated by the SMTC is the period included in the SMTC.

[0265] As an example, the advantage of the above method is that it is more flexible, wireless link monitoring is not limited by the SSB cycle, and the SSB transmission cycle does not need to consider the power saving requirements of wireless link monitoring.

[0266] As an example, the higher layer receives N consecutive first-type indications within a target time length, triggering a beam failure or a beam failure recovery process.

[0267] As a sub-example of this embodiment, both the target time length and N are network-configured.

[0268] As an example, the cell associated with or corresponding to the at least one SSB index is not deactivated.

[0269] As an example, the cell associated with the at least one SSB index is the PCell of the first node.

[0270] As an example, whether the first configuration information includes a first time window set depends on whether the at least one SSB index belongs to the active BWP.

[0271] As an example, 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.

[0272] As a sub-implementation 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.

[0273] As a sub-implementation 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, the first field indicating 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.

[0274] As an example, when the at least one SSB index belongs to the active BWP, the first node performs radio 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 first node performs radio link monitoring based on RS resources within the first time window set identified by the at least one SSB.

[0275] As an example, the first node performs radio 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 limited 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.

[0276] As an example, 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.

[0277] As a sub-implementation 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.

[0278] As one embodiment, the frequency information includes frequency point information.

[0279] As one embodiment, the frequency information includes frequency band information.

[0280] As one embodiment, the frequency information includes sub-band information.

[0281] As one example, the frequency information includes carrier information.

[0282] As one example, the frequency information includes the identity of the BWP.

[0283] As an example, 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 can easily lead to confusion or misjudgment and affect the performance of wireless link monitoring. The first configuration information can make it clearer and improve 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. Therefore, not indicating the specific frequency information is beneficial to saving signaling overhead.

[0284] As an example, when the at least one SSB index does not belong to the active BWP, the first node is not configured with the active BWP's CSI-RS, NCD-SSB, or CD-SSB for radio link monitoring.

[0285] As an example, SSB is divided into CD-SSB and NCD-SSB.

[0286] As an example, when the at least one SSB index does not belong to the active BWP, the first node is not configured with the active BWP's CSI-RS resources for radio link monitoring.

[0287] As an example, when the at least one SSB index does not belong to the active BWP, the first node is not configured with the active BWP's NCD-SSB resource or CD-SSB resource for radio link monitoring.

[0288] As an example, when the at least one SSB index does not belong to the active BWP, the first node is not configured with the active BWP's CSI-RS index for radio link monitoring.

[0289] As an example, 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 for radio link monitoring of the active BWP.

[0290] As an example, the advantage of the above method is that it saves more resources.

[0291] Example 2

[0292] Example 2 illustrates a schematic diagram of a network architecture according to this application, as shown in the attached diagram. Figure 2 As shown.

[0293] Appendix Figure 2This diagram illustrates the network architecture 200 of 5G NR, LTE (Long-Term Evolution), and LTE-A (Long-Term Evolution Advanced) systems. 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 term. 5GS / EPS 200 may include one or more UE (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. 5GS / EPS can interconnect with other access networks, but these entities / interfaces are not shown for simplicity. As shown in the figure, 5GS / EPS provides packet-switched services; however, those skilled in the art will readily understand 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 termination to UE 201. gNB 203 can connect to other gNBs 204 via an Xn interface (e.g., backhaul). gNB 203 may also be referred to as a base station, base transceiver station, radio base station, radio transceiver, transceiver function, Basic Services Set (BSS), Extended Services Set (ESS), TRP (Transmitter Receiver Node), or some other suitable term. gNB 203 provides UE 201 with an access point to 5GC / EPC 210. Examples of UE201 include cellular phones, smartphones, 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 IoT devices, machine-type communication devices, land vehicles, automobiles, wearable devices, or any other similar functional devices. Those skilled in the art may also refer to UE201 as a mobile station, subscriber station, mobile unit, subscriber unit, radio unit, remote unit, mobile device, radio communication device, remote device, mobile subscriber station, access terminal, mobile terminal, radio terminal, remote terminal, handheld device, user agent, mobile client, client, or any other suitable term.gNB203 connects 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 / SMF 214, S-GW (Service Gateway) / UPF (User Plane Function) 212, and P-GW (Packet Data Network Gateway) / UPF 213. MME / AMF / SMF 211 is the control node handling signaling between UE201 and 5GC / EPC210. ​​Generally, MME / AMF / SMF 211 provides bearer and connection management. All user IP (Internet Protocol) packets are transmitted through S-GW / UPF 212, which is itself connected to P-GW / UPF 213. The P-GW provides UE IP address allocation and other functions. The P-GW / UPF213 connects to Internet service 230. Internet service 230 includes carrier-compliant Internet protocol services, specifically including the Internet, intranet, IMS (IP Multimedia Subsystem), and packet-switched streaming services.

[0294] As an example, the first node in this application is UE201.

[0295] As an example, the base station of the second node in this application is gNB203.

[0296] As an example, the radio link from UE201 to NR node B is an uplink.

[0297] As an example, the radio link from NR node B to UE201 is a downlink.

[0298] As an example, the UE201 supports relay transmission.

[0299] As an example, the UE201 includes a mobile phone.

[0300] As an example, the UE201 is a vehicle including a car.

[0301] As an example, the gNB203 is a macrocell base station.

[0302] As an example, the gNB203 is a microcell base station.

[0303] As an example, the gNB203 is a PicoCell base station.

[0304] As one example, the gNB203 is a flight platform device.

[0305] As an example, the gNB203 is a satellite device.

[0306] Example 3

[0307] Example 3 illustrates a schematic diagram of an embodiment of a wireless protocol architecture for a user plane and a control plane according to this application, as shown in the attached diagram. Figure 3 As shown. Figure 3 This is a schematic diagram illustrating an embodiment of a radio protocol architecture for the user plane 350 and the control plane 300. Figure 3The radio protocol architecture for the control plane 300 between the first node (a satellite or aircraft in the gNB or NTN) and the second node (a satellite or aircraft in the gNB, UE, or NTN), or between two UEs, is illustrated using 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. L1 layer will be referred to as PHY301 in this document. Layer 2 (L2 layer) 305 sits above PHY301 and is responsible for the link between the first and second nodes and between the two UEs via PHY301. L2 layer 305 includes the MAC (Medium Access Control) sublayer 302, the RLC (Radio Link Control) sublayer 303, and the 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. PDCP sublayer 304 also provides security through encrypted data packets and supports cross-cell mobility between second nodes to the first node. RLC sublayer 303 provides upper-layer packet segmentation and reassembly, retransmission of lost packets, and packet reordering to compensate for out-of-order reception due to HARQ. MAC sublayer 302 provides multiplexing between logical and transport channels. MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) within a cell between first nodes. MAC sublayer 302 is also responsible for HARQ operations. RRC (Radio Resource Control) sublayer 306 in Layer 3 (L3) of the control plane 300 is responsible for acquiring radio resources (i.e., radio bearers) and configuring the lower layer using RRC signaling between the second and first nodes. PC5-S (PC5 Signaling Protocol) sublayer 307 is responsible for processing the signaling protocol of the PC5 interface. The radio protocol architecture of user plane 350 includes layer 1 (L1 layer) and layer 2 (L2 layer). The radio protocol architecture for the first and second nodes in user plane 350 is largely the same as the corresponding layers and sublayers in control plane 300 for physical layer 351, PDCP sublayer 354 in L2 layer 355, RLC sublayer 353 in L2 layer 355 and MAC sublayer 352 in L2 layer 355. However, PDCP sublayer 354 also provides header compression for upper layer packets to reduce radio transmission overhead.The L2 layer 355 in the user plane 350 also includes the SDAP (Service Data Adaptation Protocol) sublayer 356. The SDAP sublayer 356 is responsible for mapping between QoS flows and Data Radio Bearers (DRBs) to support service diversity. SRBs can be seen as services or interfaces provided by the PDCP layer to higher layers, such as the RRC layer. In NR systems, SRBs include SRB1, SRB2, and SRB3, and SRB4 is also included when secondary link communication is involved, each used to transmit different types of control signaling. SRBs are bearers between the UE and the access network, used to transmit control signaling, including RRC signaling, between the UE and the access network. SRB1 is particularly important for the UE; after each UE establishes an RRC connection, there will be an SRB1 used to transmit RRC signaling. Most signaling is transmitted through SRB1. If SRB1 is interrupted or unavailable, the UE must re-establish RRC. SRB2 is generally only used to transmit NAS signaling or security-related signaling. UEs may not configure SRB3. Except for emergency services, the UE must establish an RRC connection with the network for subsequent communication. Although not illustrated, the first node may have several upper layers above L2 layer 355. This also includes a network layer (e.g., IP layer) terminating at the P-GW on the network side and an application layer terminating at the other end of the connection (e.g., remote UE, server, etc.). A protocol sublayer can also be referred to as a protocol layer.

[0308] As an example, Appendix Figure 3 The wireless protocol architecture described herein is applicable to the first node in this application.

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

[0310] As an example, the first configuration information is generated in RRC306.

[0311] As an example, the first capability information is generated in RRC306.

[0312] Example 4

[0313] Example 4 illustrates a schematic diagram of a first communication device and a second communication device according to an embodiment of this application, as shown in the attached diagram. Figure 4 As shown. Figure 4 This is a block diagram of a first communication device 450 and a second communication device 410 communicating with each other in the access network.

[0314] The first communication device 450 includes a controller / processor 459, a memory 460, a data source 467, a transmitting processor 468, a receiving processor 456, and optionally may also include a multi-antenna transmitting processor 457, a multi-antenna receiving processor 458, a transmitter / receiver 454, and an antenna 452.

[0315] The second communication device 410 includes a controller / processor 475, a memory 476, a receiver processor 470, a transmitter processor 416, and optionally may also include a multi-antenna receiver processor 472, a multi-antenna transmitter processor 471, a transmitter / receiver 418, and an antenna 420.

[0316] In the transmission from the second communication device 410 to the first communication device 450, at the second communication device 410, upper-layer data packets from the core network are provided to the controller / processor 475. The controller / processor 475 implements L2 (Layer-2) layer functionality. 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 retransmitting 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). Transmit processor 416 performs encoding and interleaving to facilitate forward error correction (FEC) at the second communication device 410, and mapping of signal clusters based on various modulation schemes (e.g., Binary Phase Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK), M-Phase Shift Keying (M-PSK), M-QAM). Multi-antenna transmit processor 471 performs digital spatial precoding on the encoded and modulated symbols, including codebook-based and non-codebook-based precoding, and beamforming processing, generating one or more spatial streams. Transmit processor 416 then maps each spatial stream to subcarriers, multiplexes it with a reference signal (e.g., a pilot) in the time and / or frequency domains, and subsequently uses inverse fast Fourier transform (IFFT) to generate a physical channel carrying the time-domain multicarrier symbol stream. Multi-antenna transmit processor 471 then performs transmit analog precoding / beamforming operations on the time-domain multicarrier symbol stream. Each transmitter 418 converts the baseband multicarrier symbol stream provided by the multi-antenna transmitter processor 471 into an radio frequency stream, which is then provided to different antennas 420.

[0317] 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 radio frequency carrier and converts the radio frequency stream into a baseband multicarrier symbol stream, which is then provided to the receiver processor 456. The receiver processor 456 and the multi-antenna receiver processor 458 implement various signal processing functions of the L1 layer. The multi-antenna receiver processor 458 performs receive analog precoding / beamforming operations on the baseband multicarrier symbol stream from the receiver 454. The receiver processor 456 uses a Fast Fourier Transform (FFT) to convert the baseband multicarrier symbol stream after the receive analog precoding / beamforming operations 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 receiver processor 456, where the reference signal is used for channel estimation, and the data signal is recovered in the multi-antenna receiver processor 458 after multi-antenna detection to recover any spatial stream destined for the first communication device 450. Symbols on each spatial stream are demodulated and recovered in the receive processor 456, generating soft decisions. The receive 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 over 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 Layer 2. The controller / processor 459 may be associated with a memory 460 storing program code and data. The memory 460 may be referred to as computer-readable media. In the transmission from the second communication device 410 to the second communication device 450, the controller / processor 459 provides multiplexing, packet reassembly, decryption, header decompression, and control signal processing between the transport and logical channels to recover upper-layer data packets from the core network. The upper-layer data packets are then provided to all protocol layers above Layer 2. Various control signals may also be provided to Layer 3 for Layer 3 processing.

[0318] 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 functions 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, implementing L2 layer functions for the user plane and control plane. The controller / processor 459 is also responsible for retransmitting lost packets and signaling to the second communication device 410. Transmit processor 468 performs modulation mapping and channel coding processing, while multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based and non-codebook-based precoding, and beamforming processing. Subsequently, transmit processor 468 modulates the generated spatial stream into a multi-carrier / single-carrier symbol stream. After analog precoding / beamforming operations in multi-antenna transmit processor 457, the stream is provided to different antennas 452 via transmitter 454. Each transmitter 454 first converts the baseband symbol stream provided by multi-antenna transmit processor 457 into a radio frequency symbol stream before providing it to antenna 452.

[0319] 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 receiving 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 radio frequency signals through its corresponding antenna 420, converts the received radio frequency signals into baseband signals, and provides the baseband signals to the multi-antenna receiving processor 472 and the receiving processor 470. The receiving processor 470 and the multi-antenna receiving processor 472 jointly implement the L1 layer functions. The controller / processor 475 implements the L2 layer functions. The controller / processor 475 may be associated with a memory 476 that stores program code and data. The memory 476 may be referred to as computer-readable media. In the transmission from the first communication device 450 to the second communication device 410, the controller / processor 475 provides multiplexing between the transmission and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover upper-layer data packets from the UE 450. Upper-layer packets from the controller / processor 475 can be provided to the core network.

[0320] As one embodiment, the first communication device 450 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor, and the first communication device 450 at least: receives first configuration information, the first configuration information being configured as at least one SSB index for wireless link monitoring; a first receiver, performing wireless link monitoring based on RS resources identified by the at least one SSB index; a first processor, sending a first type indication from layer 1 to higher layers 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 when at least one SSB index belongs to the active BWP, when at least one SSB index does not belong to the active BWP, the minimum time interval between consecutive first-type indications is longer; the minimum time interval between consecutive first-type indications is not less than the shortest period of the RS resource identified by at least one SSB index; the action of performing radio link monitoring based on the RS resource identified by at least one SSB index depends on whether at least one SSB index belongs to the active BWP; when at least one SSB index does not belong to the active BWP, the action of performing radio link monitoring based on the RS resource identified by at least one SSB index is performed within a first time window set, the period of the first time window set being greater than the shortest period of the RS resource identified by at least one SSB index.

[0321] As one embodiment, the first communication device 450 includes: a memory storing a computer-readable instruction program that, when executed by at least one processor, produces actions including: receiving first configuration information configured as at least one SSB index for wireless link monitoring; a first receiver performing wireless link monitoring based on RS resources identified by the at least one SSB index; and a first processor sending a first type 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 BWP, the minimum time interval between consecutive first type indications depends on whether the at least one SSB index belongs to an active BWP. When the at least one SSB index does not belong to the active BWP, the minimum time interval between consecutive first-type indications is longer; the minimum time interval between consecutive first-type indications is not less than the shortest period of the RS resource identified by the at least one SSB index; the behavior of performing radio link monitoring based on the RS resource 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 radio link monitoring based on the RS resource identified by the at least one SSB index is performed within a first time window set, the period of the first time window set being greater than the shortest period of the RS resource identified by the at least one SSB index.

[0322] As an example, the first communication device 450 corresponds to the first node in this application.

[0323] As an example, the second communication device 410 corresponds to the second node in this application.

[0324] As an example, the first communication device 450 is a UE.

[0325] As an example, the first communication device 450 is a vehicle-mounted terminal.

[0326] As one embodiment, the second communication device 450 is a relay.

[0327] As one embodiment, the second communication device 410 is a satellite.

[0328] As one embodiment, the second communication device 410 is an aircraft.

[0329] As one embodiment, the second communication device 410 is a base station.

[0330] As one embodiment, receiver 454 (including antenna 452, receiving processor 456 and controller / processor 459) is used in this application to receive the first configuration information.

[0331] As one embodiment, a transmitter 454 (including an antenna 452, a transmitter processor 468, and a controller / processor 459) is used in this application to transmit first capability information.

[0332] Example 5

[0333] Example 5 illustrates a wireless signal transmission flowchart according to an embodiment of this application, as shown in the attached diagram. Figure 5 As shown. (Attached) Figure 5 In this example, U01 corresponds to the first node of this application, and U02 corresponds to the second node of this application. It should be noted that the order in this example does not limit the signal transmission order and the implementation order in this application, and the steps in F51 are optional.

[0334] for First node U01 In step S5101, first capability information is sent; in step S5102, first configuration information is received; in step S5103, radio link monitoring is performed based on RS resources identified by at least one SSB index; in step S5104, whenever the radio link quality on RS resources identified by at least one SSB index is worse than a first threshold, layer 1 sends a first type indication to higher layers.

[0335] for First node U02 In step S5201, the first capability information is received; in step S5202, the first configuration information is sent.

[0336] In Example 5, the first configuration information is configured as 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 to when the at least one SSB index belongs to the active BWP, the minimum time interval between 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 consecutive first-type indications is not less than the shortest period of the RS resource identified by the at least one SSB index; the action of performing wireless link monitoring based on the RS resource identified by the at least one SSB index depends on whether the at least one SSB index belongs to an active BWP; when the at least one SSB index does not belong to the active BWP, the action of performing wireless link monitoring based on the RS resource identified by the at least one SSB index is performed within a first time window set, the period of the first time window set being greater than the shortest period of the RS resource identified by the at least one SSB index.

[0337] As an example, the first node U01 is a UE, and the second node U02 is the serving cell or cell group of the first node U01.

[0338] As one example, the first node U01 is a UE, and the second node U02 is a base station serving the first node U01.

[0339] As an example, the first node U01 is a UE, and the second node U02 is the SpCell of the first node U01 or the base station corresponding to the SpCell.

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

[0341] As an example, the interface between the first node U01 and the second node U02 is the Uu interface.

[0342] As an example, step S5101 occurs before step S5102.

[0343] As an example, step S5102 occurs before step S5103.

[0344] As an example, step S5103 occurs before step S5104.

[0345] As one embodiment, the first capability information includes UE Capability Information.

[0346] As an example, the first capability information indicates that the first node U01 is not a RedCap UE.

[0347] As an example, the first capability information does not indicate that the first node U01 is a RedCap UE.

[0348] As an example, the first capability information indicates that the receiving bandwidth of the first node U01 is equal to the active BWP.

[0349] As an example, 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 resource identified by the at least one SSB index.

[0350] As an example, the first capability information indicates that the first node U01 needs an interruption time before it can receive the RS resource identified by the at least one SSB index.

[0351] As an example, the first capability information indicates that the first node U01 needs to interrupt the reception of the active BWP in order to receive the RS resource identified by the at least one SSB index.

[0352] As an example, the wireless link monitoring includes receiving data on RS resources.

[0353] As an example, the first capability information indicates the frequency band supported by the first node U01.

[0354] As an example, the first capability information indicates the number of SSB indexes supported by the first node U01 for wireless link monitoring.

[0355] As an example, the meaning of the sentence "The first capability information indicates that the first node does not support radio link monitoring on RS resources identified by SSB indexes other than the active BWP without interruption" includes: radio link monitoring on RS resources identified by SSB indexes other than the active BWP will cause an interruption of reception on the BWP.

[0356] As an example, the network can obtain the capabilities of the first node U01 through means such as network access information. The first node U01 actively reporting the first capability information has advantages such as greater accuracy and shorter processing latency.

[0357] As an example, 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 is handled by the first node U01 itself, it will affect the reception of the active BWP. Therefore, configuring SSB indexes that do not belong to the active BWP for radio link monitoring has technical obstacles in the prior art.

[0358] As an example, the first node receives first configuration information, which is configured as at least one SSB index for wireless link monitoring; the at least one SSB index includes two SSB indices; the first node U01 performs wireless link monitoring based on 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 indication is sent from layer 1 to a higher layer; the at least one SSB index belongs to an active BWP, and 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.

[0359] As a sub-example of this embodiment, the first node U01 is not configured with DRX.

[0360] As a sub-example of this embodiment, the first time length is equal to the greater of 2ms and the shortest period of the RS resource identified by the at least one SSB index.

[0361] As a sub-implementation of this embodiment, the second node U02 sends the first configuration information via the RRCReconfiguration message.

[0362] As a sub-implementation of this embodiment, the second node U02 indicates that the at least one SSB index includes two SSB indices according to the frequency of the active BWP, or a fixed algorithm, such as indicating two SSB indices each time for wireless link monitoring, such as selecting the SSB index of the center of a BWP, such as selecting the maximum number of SSB indices that can be supported by the corresponding frequency band; such as selecting the SSB identified by the SSB index with the lowest transmit power in the BWP.

[0363] As a sub-implementation of this embodiment, the first configuration information configures the first threshold.

[0364] As an example, the first node receives first configuration information, which is configured as at least one SSB index for wireless link monitoring; the at least one SSB index includes two SSB indices; the first node U01 performs wireless link monitoring based on 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 indication is sent from 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 wireless link monitoring based on the RS resources identified by the at least one SSB index is performed within a first time window set, the period of the first time window set being greater than the shortest period of the RS resources identified by the at least one SSB index.

[0365] As a sub-example of this embodiment, the first node U01 is not configured with DRX.

[0366] As a sub-example of this embodiment, the second time length is equal to the greater of 2ms and 1.5 times the shortest period of the RS resource identified by the at least one SSB index.

[0367] As a sub-implementation of this embodiment, the second node U02 sends the first configuration information via the RRCReconfiguration message.

[0368] As a sub-implementation of this embodiment, the second node U02 indicates that the at least one SSB index includes two SSB indices according to the frequency of the active BWP, or a fixed algorithm, such as indicating two SSB indices each time for wireless link monitoring, such as selecting the SSB index of the center of a BWP, such as selecting the maximum number of SSB indices that can be supported by the corresponding frequency band; such as selecting the SSB identified by the SSB index with the lowest transmit power in the BWP.

[0369] As a sub-implementation of this embodiment, the first configuration information configures the first threshold.

[0370] As a sub-implementation of this embodiment, the first configuration information indicates the first time window set.

[0371] As a sub-example of this embodiment, the first node U01 is not configured with the active BWP's CSI-RS, NCD-SSB or CD-SSB for wireless link monitoring.

[0372] As an example, the method proposed in this application does not limit whether the first node is configured with DRX.

[0373] As an example, the method proposed in this application does not limit the number of the at least one SSB index.

[0374] As an example, the first configuration information is unicast.

[0375] As an example, regardless of whether an interruption time is required, receiving a wider frequency band, such as simultaneously receiving RS resources identified by SSB indices other than the active BWP and the active BWP, consumes more power. Therefore, when the 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.

[0376] Example 6

[0377] Example 6 illustrates a schematic diagram of an SSB according to an embodiment of this application, as shown in the attached diagram. Figure 6 As shown.

[0378] As an example, Appendix Figure 6 The horizontal axis represents the OFDM symbol, or simply symbol, its number, such as #0, #1, #2, #3, which are OFDM symbols; (See attached image) Figure 6The vertical axis represents the subcarrier numbers, from #0 to #239.

[0379] As an example, Appendix Figure 6 The horizontal axis represents the time domain, and the vertical axis represents the frequency domain.

[0380] As an example, the synchronization signal and PBCH block, also known as SS / PBCH block, SS-Block, or SSB, include 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 space is 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; different SSBs can be transmitted in different spatial directions within a half-frame, i.e., using different beams; multiple SSBs can be transmitted across the entire frequency domain; the PCI of SSBs transmitted at different frequency domain positions can be different, i.e., SSBs at different frequency domain positions can have different PCIs; when an SSB is associated with SIB1, this SSB is called a cell-defining SSB (CD-SSB); a PCell is always associated with a CD-SSB on a frequency domain grid.

[0381] As a sub-implementation of this embodiment, the SSB identified by the at least one SSB index is subject to the above definition.

[0382] As a sub-implementation of this embodiment, the SSB identified by the at least one SSB index can be a CD-SSB or not a CD-SSB; if it is not a CD-SSB, it is an NCD-SSB.

[0383] As an example, a PBCH, the primary synchronization signal (PSS), is received from the secondary synchronization signal (SSS) on consecutive symbols and constitutes an SS / PBCH block; the transmit power of SSS, PBCH DM-RS and PBCH data is the same; the transmit power of SSS and PSS within an SS / PBCH block can be equal or differ by 3dB.

[0384] As an example, the index of the first symbol of a half-frame including an SS / PBCH block is determined based on the subcarrier spacing of the SS / PBCH block.

[0385] As an example, the definitions of PBCH, PSS and SSS can be further referenced in the 3GPP TS38.211 protocol.

[0386] As an example, 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.

[0387] As a sub-implementation of this embodiment, the advantages of the above method include: the processing is simpler.

[0388] As an example, 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.

[0389] As a sub-implementation of this embodiment, the advantages of the above method include: more flexible processing.

[0390] As an example, the way SSB is associated with cell identity is fixed and is existing technology in the field.

[0391] Example 7

[0392] Example 7 illustrates a schematic diagram of a BWP according to an embodiment of this application, as shown in the attached diagram. Figure 7 As shown.

[0393] As an example, a UE can be configured with one or more bandwidth parts (BWPs) on a given component carrier, of which only one is active at any given time, i.e., the active BWP; the active BWP defines the UE's operating bandwidth within the cell's operating bandwidth; for initial access, the UE uses the initial BWP obtained from system information before being further configured.

[0394] As an example, through bandwidth adaptation (BA), the receive and transmit bandwidth of a UE does not need to be the same as the bandwidth of the cell and is adjustable: that is, the width of the operating frequency band can be changed, and the position of the frequency domain can also be adjusted; a subset of the total bandwidth of a cell constitutes a BWP, and bandwidth adaptation is achieved by configuring the BWP for the UE and indicating which of the configured BWPs is currently active.

[0395] As an example, after being configured with BA, the UE in RRC connected state only uses the common search space to monitor the paging channel on the active BWP.

[0396] As an example, after BA is configured, the UE only obtains SI (system information) on the active BWP.

[0397] As an example, when BA is configured, the first node only listens to the PDCCH (physical downlink control channel) on the active BWP, and does not need to listen to the PDCCH on the entire downlink frequency of the cell.

[0398] As an example, Appendix Figure 7 Three BWPs are shown, but the method proposed in this application is not limited to the number of BWPs.

[0399] As an example, Appendix Figure 7 The three BWPs shown are BWP1, BWP2 and BWP3, which occupy bandwidths of 40MHz, 10MHz and 20MHz respectively, as well as their respective subcarrier spacings. The method proposed in this application does not limit the specific width of the BWPs.

[0400] As an example, Appendix Figure 7 Of the three BWPs shown, only one of BWP1, BWP2 and BWP3 can be an active BWP at the same time.

[0401] As an example, the first node has only one active BWP at any given time.

[0402] As an example, the network configures the active BWP of the first node.

[0403] As an example, the network is configured to determine which BWP is the active BWP of the first node.

[0404] As an example, upon initial access, the initial BWP is the active BWP.

[0405] As an example, the bandwidth supported by the first node is wider than that of the active BWP.

[0406] As a sub-example of this embodiment, the first node is still insufficient to simultaneously receive the active BWP and the RS resources identified by the SSB index that do not belong to the active BWP.

[0407] As an example, the bandwidth supported by the first node is no wider than that of the active BWP.

[0408] As an example, if the active BWP of the first node is attached Figure 7One of the three BWPs, when the at least one SSB index does not belong to the active BWP, for example, it may belong to another BWP.

[0409] Example 8

[0410] Example 8 illustrates a schematic diagram of the minimum time interval between consecutive first-type indications according to an embodiment of this application, as shown in the attached diagram. Figure 8 As shown.

[0411] Appendix Figure 8 The method proposed in this application does not limit the number of times the first type of indication is sent, but indicates the five times the first type of indication is sent.

[0412] Typically, the first node sends multiple consecutive Class 1 indications.

[0413] As an example, the method proposed in this 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.

[0414] As an example, the minimum time interval between consecutive first-type indications is the minimum time interval between two adjacent first-type indications.

[0415] As an example, the minimum time interval between consecutive first-type indications is the minimum time interval between two immediately adjacent first-type indications.

[0416] As an example, the consecutive first type of indications refers to other indications that do not contradict the first type of indications.

[0417] As a sub-implementation of this embodiment, for example, the first type of indication is out-of-sync, and the other indications not indicated by the first type are in-sync indications.

[0418] As an example, requiring a minimum time interval helps to make radio link monitoring more accurate and reduce the amount of control signaling, for example, if a Type I indication triggers the transmission of control signaling.

[0419] As an example, the minimum time interval between the consecutive first-type indications is T. Indication_interval .

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

[0421] As an example, the minimum time interval between the consecutive first-type indications is T. Indication_interval_RLM。

[0422] Example 9

[0423] Example 9 illustrates a schematic diagram of an embodiment of the present application showing that 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 at least one SSB index, as shown in the attached diagram. Figure 9 As shown.

[0424] As an example, the at least one SSB index does not belong to the active BWP.

[0425] As an example, the minimum time interval between consecutive first-class indications depends on the product of a first coefficient and the shortest period of the RS resource identified by at least one SSB index.

[0426] As an example, 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.

[0427] As an example, the minimum time interval between consecutive first-class 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.

[0428] As an example, 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.

[0429] As an example, the first coefficient is greater than 1.

[0430] As an example, the first coefficient is equal to 2.

[0431] As an example, the first coefficient is equal to 3.

[0432] As an example, the first coefficient is not equal to 0.

[0433] As an example, the first value is equal to 2ms.

[0434] As an example, the first value is equal to 3ms.

[0435] As an example, the first value is equal to 10ms.

[0436] As an example, when the wireless link monitoring is for monitoring 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.

[0437] As an example, the minimum time interval between consecutive first-type indications satisfies: T = max(X, K*T) SSB ), where 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 The shortest period for the RS resource identified by the at least one SSB index, where '*' represents multiplication.

[0438] As a sub-example of this embodiment, the first node is not configured with DRX.

[0439] As a sub-implementation of this embodiment, the first coefficient is greater than 1.

[0440] As a sub-example of this embodiment, the first coefficient is equal to 1.5.

[0441] As a sub-implementation of this embodiment, the first coefficient is equal to 2.

[0442] As an example, the minimum time interval between consecutive first-type indications satisfies: T = max(X, K1*Td, K*T) SSB ), where 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 The shortest period for the RS resource identified by the at least one SSB index, Td is the period of the configured DRX, K1 is a fixed coefficient, and '*' is multiplication.

[0443] As a sub-example of this embodiment, K1 is equal to 1.5.

[0444] As a sub-example of this embodiment, K is greater than 1.5.

[0445] As a sub-example of this embodiment, K equals 2.

[0446] As a sub-example of this embodiment, K equals 3.

[0447] As a sub-implementation of this embodiment, the first type of indication is out-of-sync.

[0448] As a sub-example of this embodiment, the first node is configured with DRX.

[0449] As a sub-implementation of this embodiment, the advantages of the above method include: more accurate wireless link monitoring results can be obtained.

[0450] As an example, the minimum time interval between consecutive first-type indications satisfies: T = max(K1*Td, K*T) SSB ), where T represents the minimum time interval between the consecutive first-type indications, K is the first coefficient, and T SSB The shortest period for the RS resource identified by the at least one SSB index, Td is the period of the configured DRX, K1 is a fixed coefficient, and '*' is multiplication.

[0451] As a sub-example of this embodiment, K1 is equal to 1.5.

[0452] As a sub-example of this embodiment, K is greater than 1.5.

[0453] As a sub-example of this embodiment, K equals 2.

[0454] As a sub-example of this embodiment, K equals 3.

[0455] As a sub-implementation of this embodiment, the first type of indication is a beam failure instance indication.

[0456] As a sub-implementation of this embodiment, the advantages of the above method include: it can obtain wireless link monitoring results more quickly.

[0457] As an example, when the first node is configured with DRX, the first node is only configured with DRX with a period of less than 320ms.

[0458] As an example, the advantages of the above method include: the minimum time interval between the determined consecutive first-type indications is more accurate.

[0459] As an example, the period of the first time window set depends on the first coefficient.

[0460] As an example, the first coefficient is linearly correlated with 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.

[0461] As a sub-implementation of this embodiment, the first coefficient is linearly correlated with 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.

[0462] As an example, the ratio of the period of the first coefficient and the first time window set to the shortest period of the RS resource identified by the at least one SSB index is equal.

[0463] As a sub-implementation 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.

[0464] As an example, 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.

[0465] As an example, the first coefficient satisfies the following condition: the fewer RS ​​resources identified by the at least one SSB included in the first time window set, the larger the first coefficient.

[0466] As a sub-implementation of this embodiment, the first time window set includes only a portion of the RS resources identified by the at least one SSB.

[0467] As an example, the first coefficient satisfies the following condition: the fewer SSB transmissions identified by the at least one SSB included in the first time window set, the larger the first coefficient becomes.

[0468] As a sub-implementation of this embodiment, the first time window set only includes a portion of the SSBs identified by the at least one SSB, that is, a portion of the SSBs identified by the at least one SSB index are transmitted within the at least one time window set, and a portion of the SSBs are transmitted outside the first time window set.

[0469] As a sub-implementation of this embodiment, for the first node, at least some transmitted SSBs are not identified by the at least one SSB index, that is, the at least one SSB index identifies SSB transmissions within the first time window set.

[0470] As an example, 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.

[0471] As an example, the first coefficient is linearly correlated with 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.

[0472] As an example, 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.

[0473] As an example, the first coefficient is configurable.

[0474] As a sub-implementation of this embodiment, the advantages of this embodiment include greater flexibility.

[0475] As an example, the first coefficient is fixed.

[0476] As a sub-implementation of this embodiment, the advantages of this embodiment include simpler implementation and less ambiguity.

[0477] Example 10

[0478] Example 10 illustrates a schematic diagram of how the minimum time interval between consecutive first-type indications according to an embodiment of this application depends on the period of a first time window set, as shown in the attached diagram. Figure 10 As shown.

[0479] As an example, the at least one SSB index does not belong to the active BWP.

[0480] As an example, 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.

[0481] As a sub-implementation 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.

[0482] As a sub-implementation of this embodiment, when the at least one SSB index belongs to the active BWP, the first time window set is not configured.

[0483] As an example, when the first node is configured with DRX, the first node is only configured with DRX with a period of less than 320ms.

[0484] As an example, the meaning of the minimum time interval between consecutive first-type indications depending 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 resource identified by the at least one SSB index; the first coefficient is greater than 1; and the period of the first time window set depends on the first coefficient.

[0485] As an example, the minimum time interval between consecutive first-type indications satisfies: T = max(X, max(Tw, T)).SSB ), where T represents the minimum time interval between the consecutive first-type indications, X is a first value, and T SSB The shortest period of the RS resource identified by the at least one SSB index, where '*' represents multiplication, and Tw is the period of the first time window set.

[0486] As a sub-example of this embodiment, the first node is not configured with DRX.

[0487] As a sub-implementation of this embodiment, the advantages of the above method include that the impact of the first time window set on wireless link monitoring can be more fully considered.

[0488] As an example, the minimum time interval between consecutive first-type indications satisfies: T = max(X, K1*max(Tw, T)). SSB ), where T represents the minimum time interval between the consecutive first-type indications, X is a first value, and T SSB The shortest period of the RS resource identified by the at least one SSB index, where '*' represents multiplication, and Tw is the period of the first time window set.

[0489] As a sub-example of this embodiment, K1 is a coefficient that is neither 0 nor 1.

[0490] As a sub-example of this embodiment, K1 is a fixed coefficient.

[0491] As a sub-example of this embodiment, K1 is equal to 1.5.

[0492] As a sub-example of this embodiment, K1 is equal to 2.

[0493] As a sub-example of this embodiment, K1 equals 3.

[0494] As a sub-example of this embodiment, the first node is not configured with DRX.

[0495] As a sub-implementation of this embodiment, the advantages of the above method include that the impact of the first time window set on wireless link monitoring can be more fully considered.

[0496] As an example, the minimum time interval between consecutive first-type indications satisfies: T = max(K1*Td, K*max(Tw, T SSB ), where T represents the minimum time interval between the consecutive first-type indications, K is the first coefficient, and T SSBThe shortest period of the RS resource identified by the at least one SSB index, Td is the period of the configured DRX, K1 is a fixed coefficient, '*' is multiplication, and Tw is the period of the first time window set.

[0497] As a sub-example of this embodiment, K1 is equal to 1.5.

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

[0499] As a sub-example of this embodiment, K is greater than 1.5.

[0500] As a sub-example of this embodiment, K equals 2.

[0501] As a sub-example of this embodiment, K equals 3.

[0502] As a sub-implementation of this embodiment, the advantages of the above method include that the impact of the first time window set on wireless link monitoring can be more fully considered.

[0503] As an example, the minimum time interval between consecutive first-type indications satisfies: T = max(X + K1*Td, K*max(Tw, T SSB ), where 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 The shortest period of the RS resource identified by the at least one SSB index, Td is the period of the configured DRX, K1 is a fixed coefficient, '*' is multiplication, and Tw is the period of the first time window set.

[0504] As a sub-example of this embodiment, K1 is equal to 1.5.

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

[0506] As a sub-example of this embodiment, K is greater than 1.5.

[0507] As a sub-example of this embodiment, K equals 2.

[0508] As a sub-example of this embodiment, K equals 3.

[0509] As a sub-implementation of this embodiment, the advantages of the above method include that the impact of the first time window set on wireless link monitoring can be more fully considered.

[0510] As an example, the first value is equal to 2ms.

[0511] As an example, the first value is equal to 3ms.

[0512] As an example, the first value is equal to 10ms.

[0513] As an example, when the wireless link monitoring is for monitoring 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.

[0514] Example 11

[0515] Example 11 illustrates a schematic diagram of a single embodiment of the present application, showing that 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 at least one SSB index, as shown in the attached diagram. Figure 11 As shown.

[0516] As an example, the at least one SSB index does not belong to the active BWP.

[0517] As an example, the minimum time interval between consecutive first-type indications satisfies: T = max(X, K*(K2+T) SSB ), where 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 The shortest period for the RS resource identified by the at least one SSB index, where '*' represents multiplication.

[0518] As a sub-example of this embodiment, the first node is not configured with DRX.

[0519] As a sub-example of this embodiment, K is not 0.

[0520] As a sub-example of this embodiment, K is equal to 1.

[0521] As a sub-example of this embodiment, K is not equal to 1.

[0522] As a sub-example of this embodiment, K is equal to 1.5.

[0523] As a sub-implementation of this embodiment, the second coefficient is non-zero.

[0524] As a sub-example of this embodiment, the second coefficient depends on the shortest period of the RS resource identified by the at least one SSB index.

[0525] As a sub-implementation of this embodiment, the second coefficient depends on the period of the first time window set.

[0526] As a sub-implementation 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.

[0527] As an example, the minimum time interval between consecutive first-type indications satisfies: T = max(X, K1*Td, K*(K2+T)). SSB ), where 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 The shortest period for the RS resource identified by the at least one SSB index, Td is the period of the configured DRX, K1 is a fixed coefficient, and '*' is multiplication.

[0528] As a sub-example of this embodiment, K1 is equal to 1.5.

[0529] As a sub-example of this embodiment, K is not 0.

[0530] As a sub-example of this embodiment, K is equal to 1.

[0531] As a sub-example of this embodiment, K is not equal to 1.

[0532] As a sub-example of this embodiment, K is equal to 1.5.

[0533] As a sub-implementation of this embodiment, the second coefficient is non-zero.

[0534] As a sub-example of this embodiment, the second coefficient depends on the shortest period of the RS resource identified by the at least one SSB index.

[0535] As a sub-implementation of this embodiment, the second coefficient depends on the period of the first time window set.

[0536] As a sub-implementation 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.

[0537] As a sub-implementation of this embodiment, the first type of indication is out-of-sync.

[0538] As a sub-example of this embodiment, the first node is configured with DRX.

[0539] As a sub-implementation of this embodiment, the advantages of the above method include: more accurate wireless link monitoring results can be obtained.

[0540] As an example, the minimum time interval between consecutive first-type indications satisfies: T = max(K1*Td, K*(K2+T)). SSB ), where T represents the minimum time interval between the consecutive first-type indications, K2 is the second coefficient, and T SSB The shortest period for the RS resource identified by the at least one SSB index, Td is the period of the configured DRX, K1 is a fixed coefficient, and '*' is multiplication.

[0541] As a sub-example of this embodiment, K1 is equal to 1.5.

[0542] As a sub-example of this embodiment, K is not 0.

[0543] As a sub-example of this embodiment, K is equal to 1.

[0544] As a sub-example of this embodiment, K is not equal to 1.

[0545] As a sub-example of this embodiment, K is equal to 1.5.

[0546] As a sub-implementation of this embodiment, the second coefficient is non-zero.

[0547] As a sub-example of this embodiment, the second coefficient depends on the shortest period of the RS resource identified by the at least one SSB index.

[0548] As a sub-implementation of this embodiment, the second coefficient depends on the period of the first time window set.

[0549] As a sub-implementation 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.

[0550] As a sub-implementation of this embodiment, the first type of indication is a beam failure instance indication.

[0551] As a sub-implementation of this embodiment, the advantages of the above method include: it can obtain wireless link monitoring results more quickly.

[0552] As an example, when the first node is configured with DRX, the first node is only configured with DRX with a period of less than 320ms.

[0553] As an example, the first value is equal to 2ms.

[0554] As an example, the first value is equal to 3ms.

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

[0556] As an example, the first value is equal to 10ms.

[0557] As an example, when the wireless link monitoring is for monitoring 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.

[0558] As an example, the second coefficient is configurable.

[0559] As a sub-implementation of this embodiment, the advantages of this embodiment include greater flexibility.

[0560] As an example, the second coefficient is fixed.

[0561] As a sub-implementation of this embodiment, the advantages of this embodiment include simpler implementation and less ambiguity.

[0562] Example 12

[0563] Example 12 illustrates a structural block diagram of a processing apparatus for a first node according to an embodiment of this application; as shown in the appendix. Figure 12 As shown. In the appendix Figure 12 In the first node, the processing device 1200 includes a first receiver 1201, a first transmitter 1202, and a first processor 1203. In embodiment 12,

[0564] First receiver 1201 receives first configuration information, which is configured as at least one SSB index for wireless link monitoring.

[0565] The first receiver 1201 performs radio link monitoring based on the RS resources identified by the at least one SSB index;

[0566] The first processor 1203 sends a first type indication from layer 1 to a higher layer whenever the radio 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.

[0567] Specifically, compared to when at least one SSB index belongs to the active BWP, when at least one SSB index does not belong to the active BWP, the minimum time interval between consecutive first-type indications is longer; the minimum time interval between consecutive first-type indications is not less than the shortest period of the RS resource identified by at least one SSB index; the action of performing radio link monitoring based on the RS resource identified by at least one SSB index depends on whether at least one SSB index belongs to the active BWP; when at least one SSB index does not belong to the active BWP, the action of performing radio link monitoring based on the RS resource identified by at least one SSB index is performed within a first time window set, the period of the first time window set being greater than the shortest period of the RS resource identified by at least one SSB index.

[0568] As an example, 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.

[0569] As an example, 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.

[0570] As an example, the period of the first time window set depends on the first coefficient.

[0571] As an example, 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.

[0572] As an example, 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; wherein the first node is not configured with DRX.

[0573] As an example, 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.

[0574] As an example, when the at least one SSB index does not belong to the active BWP, the first node is not configured with the active BWP's CSI-RS, NCD-SSB, and CD-SSB for radio link monitoring.

[0575] As an example, the first transmitter 1202, before receiving the first configuration information, sends first capability information, the 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.

[0576] As an example, the first node is a user equipment (UE).

[0577] As an example, the first node is a terminal that supports large latency differences.

[0578] As an example, the first node is an NTN-enabled terminal.

[0579] As an example, the first node is an aircraft or a ship.

[0580] As an example, the first node is a mobile phone or vehicle terminal.

[0581] As an example, the first node is a helmet or glasses.

[0582] As an example, the first node is an Internet of Things (IoT) terminal or an industrial IoT terminal.

[0583] As an example, the first node is a device that supports low-latency, high-reliability transmission.

[0584] As one embodiment, the first receiver 1201 includes at least one of the following in embodiment 4: antenna 452, receiver 454, receiver processor 456, multi-antenna receiver processor 458, controller / processor 459, memory 460, or data source 467.

[0585] As one embodiment, the first transmitter 1202 includes at least one of the following in embodiment 4: antenna 452, transmitter 454, transmission processor 468, multi-antenna transmission processor 457, controller / processor 459, memory 460, or data source 467.

[0586] Those skilled in the art will understand that all or part of the steps in the above methods can be implemented by a program instructing related hardware, and the program can be stored in a computer-readable storage medium, such as a read-only memory, hard disk, or optical disk. Optionally, all or part of the steps in the above embodiments can also be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiments can be implemented in hardware or in the form of software functional modules. This application is not limited to any specific combination of software and hardware. The user equipment, terminal, and UE in this application include, but are not limited to, drones, communication modules on drones, remote-controlled aircraft, aircraft, small aircraft, mobile phones, tablets, laptops, vehicle-mounted communication equipment, wireless sensors, internet cards, IoT terminals, RFID terminals, NB-IoT terminals, MTC (Machine Type Communication) terminals, eMTC (enhanced MTC) terminals, data cards, internet cards, vehicle-mounted communication equipment, low-cost mobile phones, low-cost tablets, satellite communication equipment, ship communication equipment, NTN user equipment, and other wireless communication equipment. The base station or system equipment in this application includes, but is not limited to, macrocell base stations, microcell base stations, home base stations, relay base stations, gNB (NR Node B), TRP (Transmitter Receiver Point), NTN base stations, satellite equipment, flight platform equipment, and other wireless communication equipment.

[0587] This invention may be practiced in other specified forms without departing from its core or essential characteristics. Therefore, the embodiments disclosed herein should in any way be considered descriptive rather than restrictive. The scope of the invention is defined by the appended claims rather than the foregoing description, and all modifications within their equivalent meaning and scope are considered to be included therein.

Claims

1. A first node used for wireless communication, wherein, include: A first receiver receives first configuration information, which is configured as at least one SSB index for wireless link monitoring. The first receiver performs radio link monitoring based on the RS resource identified by the at least one SSB index; The first processor sends a first type indication from layer 1 to higher layers whenever the radio 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. Specifically, compared to when at least one SSB index belongs to the active BWP, when at least one SSB index does not belong to the active BWP, the minimum time interval between consecutive first-type indications is longer; the minimum time interval between consecutive first-type indications is not less than the shortest period of the RS resource identified by at least one SSB index; the action of performing radio link monitoring based on the RS resource identified by at least one SSB index depends on whether at least one SSB index belongs to the active BWP; when at least one SSB index does not belong to the active BWP, the action of performing radio link monitoring based on the RS resource identified by at least one SSB index is performed within a first time window set, the period of the first time window set being greater than the shortest period of the RS resource identified by at least one SSB index.

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

4. The first node according to claim 3, characterized in that, The period of the first time window set 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 resource 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 was not configured with DRX.

7. The first node according to any one of claims 1 to 6, characterized in that, 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.

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 active BWP's CSI-RS, NCD-SSB, and CD-SSB for radio link monitoring.

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

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

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