Method and device used for wireless communication

Abstract

The invention discloses a method and device used for wireless communication, and the method comprises the steps: receiving first configuration information, and enabling the first configuration information to configure a plurality of RS resources for wireless link monitoring; the plurality of RS resources comprise at least two RS resources on different BWP (Broadband Work Point); performing wireless link monitoring according to the plurality of RS resources; wherein the behavior execution wireless link monitoring comprises the following steps: when the wireless link quality on the plurality of RS resources is worse than a first threshold value, sending a first type of indication to a higher layer from a layer 1; the method provided by the invention is beneficial to improving the performance of wireless link monitoring.

Description

Technical Field

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

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

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

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

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

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

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

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

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

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

[0011] In wireless communication systems, wireless link monitoring is a very important function. In the scenario of wireless link monitoring, how to better perform wireless link monitoring is a problem that needs to be solved. Researchers found that in the existing technology, only within one BWP, for example, RS resources on an active BWP are configured, and the terminal performs wireless link monitoring based on RS resources in one BWP, which is not accurate or fast enough. Researchers found that configuring multiple RS resources for wireless link monitoring can achieve more accurate monitoring performance. Since more samples are collected, wireless link monitoring can also evaluate the quality of wireless links more quickly. Therefore, RS resources on different BWPs can be configured, especially when RS resources on one BWP are not enough, better wireless link monitoring can be achieved by configuring RS resources on different BWPs. Researchers also found that when RS resources are located at the edge of a BWP, the performance may not be accurately evaluated. Therefore, auxiliary wireless link monitoring can be performed by reconfiguring RS resources on other BWPs, such as adjacent BWPs. In particular, when the configured RS resources are not too far from the current BWP, that is, the active BWP, it is very helpful to obtain more accurate wireless link monitoring. The researchers further found that in the BWP switching scenario, if the RS resources on the target BWP are used for wireless link monitoring during the BWP switching process, the wireless link monitoring can be performed better and more smoothly. Therefore, in different subdivision scenarios, the reasonable configuration of RS resources on different BWPs for wireless link monitoring will produce beneficial effects.

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

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

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

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

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

[0017] Receive first configuration information, wherein the first configuration information is configured for multiple RS (Reference Signal) resources for wireless link monitoring; the multiple RS resources include at least two RS resources on different BWP (Bandwidth Part);

[0018] performing wireless link monitoring according to the plurality of RS resources;

[0019] The behavior of performing wireless link monitoring includes: whenever the wireless link quality on the plurality of RS resources is worse than a first threshold, sending a first type of indication from layer 1 to a higher layer.

[0020] As an embodiment, the problem to be solved by the present application includes: how to perform wireless link monitoring more accurately and / or faster.

[0021] As an embodiment, the benefits of the above method include: more accurate wireless link monitoring, that is, the evaluated wireless link quality is more accurate, the wireless link quality evaluation can be completed more quickly, and wireless link monitoring of SSB based on different BWPs is supported, which is more flexible and saves more resources.

[0022] Specifically, according to one aspect of the present application, the first configuration information includes at least two SSB indexes belonging to different BWPs, and the at least two SSB indexes belonging to different BWPs identify the at least two RS resources on different BWPs.

[0023] Specifically, according to one aspect of the present application, the first configuration information includes a first SSB index, and the first SSB index identifies the at least two RS resources on different BWPs.

[0024] Specifically, according to one aspect of the present application, the behavior of receiving the first configuration information includes: receiving a first signaling, the first signaling includes a first field, and the first field of the first signaling includes the first configuration information;

[0025] The first field of the first signaling is BWP-DownlinkDedicated, and the first field of the first signaling configures a BWP.

[0026] Specifically, according to one aspect of the present application, the first node is in a BWP switching process, and the BWP switching process means that the time from the expiration of the first timer is shorter than a first time threshold, or the first timer has expired and the target BWP has not yet taken effect.

[0027] The expiration of the first timer triggers leaving the active BWP.

[0028] Specifically, according to one aspect of the present application, the different BWPs include an active BWP and an inactive BWP, and the interval in the frequency domain between the RS resources belonging to the active BWP among the at least two RS resources on different BWPs and the active BWP, and the interval in the frequency domain between the RS resources belonging to the inactive BWP among the at least two RS resources on different BWPs and the active BWP, are less than the first frequency interval.

[0029] Specifically, according to one aspect of the present application, the at least two RS resources on different BWPs are associated with the first PCI and the second PCI, respectively.

[0030] Specifically, according to one aspect of the present application, the RS resource on the active BWP among the at least two RS resources on different BWPs is an NCD-SSB, and the RS resource not on the active BWP among the at least two RS resources on different BWPs is a CD-SSB.

[0031] Specifically, according to one aspect of the present application, the at least two RS resources on different BWPs include RS resources on an initial BWP, and the active BWP is not the initial BWP, or the at least two RS resources on different BWPs include RS resources on a default BWP, and the active BWP is not the default BWP.

[0032] Specifically, according to one aspect of the present application, the minimum time interval between consecutive first-type indications depends on the shortest period of the multiple RS resources.

[0033] Specifically, according to one aspect of the present application, the first node is an Internet of Things terminal.

[0034] Specifically, according to one aspect of the present application, the first node is a user equipment.

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

[0036] Specifically, according to one aspect of the present application, the first node is an access network device.

[0037] Specifically, according to one aspect of the present application, the first node is a vehicle-mounted terminal.

[0038] Specifically, according to one aspect of the present application, the first node is an aircraft.

[0039] Specifically, according to one aspect of the present application, the first node is a mobile phone.

[0040] The present application discloses a first node used for wireless communication, comprising:

[0041] A first receiver receives first configuration information, wherein the first configuration information is configured for multiple RS resources for wireless link monitoring; the multiple RS resources include at least two RS resources on different BWPs;

[0042] The first receiver performs wireless link monitoring according to the multiple RS resources;

[0043] The behavior of performing wireless link monitoring includes: whenever the wireless link quality on the plurality of RS resources is worse than a first threshold, sending a first type of indication from layer 1 to a higher layer.

[0044] As an embodiment, compared with the traditional solution, this application has the following advantages:

[0045] Save resources and network power. The active BWP may be configured with less or no SSB for wireless link monitoring, and may not be configured with CSI-RS for wireless link monitoring. The method proposed in this application is particularly effective when CSI-RS is not configured, because CSI-RS is for one user, while SSB is for all users in the entire cell, so it is more power-saving.

[0046] The performance of wireless link monitoring is more accurate and reliable.

[0047] The system is more flexible and can support different types of UEs.

[0048] Unreliable wireless link monitoring can be reduced, thereby reducing failures caused by inappropriate wireless links.

[0049] The impact on the system and other users is relatively small, and SSB can be adjusted for wireless link monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0051] Figure 1 A flowchart of receiving first configuration information and performing wireless link monitoring according to multiple RS resources according to an embodiment of the present application is shown;

[0052] Figure 2 A schematic diagram of a network architecture according to an embodiment of the present application is shown;

[0053] Figure 3 A schematic diagram showing an embodiment of a wireless protocol architecture of a user plane and a control plane according to an embodiment of the present application;

[0054] Figure 4 A schematic diagram showing a first communication device and a second communication device according to an embodiment of the present application is shown;

[0055] Figure 5 A flowchart of wireless signal transmission according to an embodiment of the present application is shown;

[0056] Figure 6 A schematic diagram of SSB according to an embodiment of the present application is shown;

[0057] Figure 7 A schematic diagram of a BWP according to an embodiment of the present application is shown;

[0058] Figure 8 A schematic diagram showing a minimum time interval between consecutive first-category indications according to an embodiment of the present application;

[0059] Fig. 9 A schematic diagram of BWP switching according to an embodiment of the present application is shown;

[0060] Fig.10 A schematic diagram showing that the minimum time interval between consecutive first-type indications depends on the shortest period of multiple RS resources according to an embodiment of the present application;

[0061] Fig.11 A schematic diagram of a processing device used in a first node according to an embodiment of the present application is illustrated.

[0062] Implementation

[0063] The technical solution of the present application will be further described in detail below in conjunction with the accompanying drawings. It should be noted that, unless there is a conflict, the embodiments in the present application and the features in the embodiments can be combined with each other arbitrarily.

[0064] Example 1

[0065] Embodiment 1 illustrates a flowchart of receiving first configuration information according to an embodiment of the present application and performing wireless link monitoring according to multiple RS resources, as shown in the attached Figure 1 Attached Figure 1In the figure, each box represents a step. It should be emphasized that the order of the boxes in the figure does not represent the temporal relationship between the steps represented.

[0066] In embodiment 1, the first node in the present application receives first configuration information in step 101; performs wireless link monitoring according to the multiple RS resources in step 102;

[0067] Among them, the first configuration information is configured as multiple RS resources for wireless link monitoring; the multiple RS resources include at least two RS resources on different BWPs; the behavior of performing wireless link monitoring includes: whenever the wireless link quality on the multiple RS resources is worse than a first threshold, a first type of indication is sent by layer 1 to a higher layer.

[0068] As an embodiment, compared with performing wireless link monitoring based on RS resources of only one BWP, performing wireless link monitoring based on RS resources of different BWPs can obtain monitoring results more quickly.

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

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

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

[0072] As an embodiment, the first node is not indicated as a RedCap UE.

[0073] As an embodiment, the first node does not use a shared frequency channel for access.

[0074] As an example, the interpretation of the terms in the present application refers to the definitions of the TS38 series of specification protocols of 3GPP.

[0075] As an embodiment, any parameter not explicitly described in the present application may be indicated by the network or configured by the network or pre-configured.

[0076] As an embodiment, any parameter not explicitly described in the present application can be determined by the first node according to its internal algorithm when not indicated by the network.

[0077] As an embodiment, any parameter in the present application may be initialized to 0 when not indicated by the network.

[0078] As an embodiment, any parameter in the present application may be set to a random number when not indicated by the network.

[0079] As an embodiment, any parameter in the present application can be selected based on simulation results when not indicated by the network.

[0080] As an embodiment, the serving cell refers to the cell where the UE resides. Performing a cell search includes the UE searching for a suitable cell of the selected PLMN (Public Land Mobile Network) or SNPN (Stand-alone Non-Public Network), selecting the suitable cell to provide available services, and monitoring the control channel of the suitable cell. This process is defined as residing on the cell; that is, a residing cell is the serving cell of the UE relative to the UE. Residing on a cell in the RRC idle state or the RRC inactive state has the following benefits: it enables the UE to receive system information from the PLMN or SNPN; after registration, if the UE wishes to establish an RRC connection or continue a suspended RRC connection, the UE can do so by performing initial access on the control channel of the residing cell; the network can page the UE; and the UE can receive ETWS (Earthquake and Tsunami Warning System) and CMAS (Commercial Mobile Alert System) notifications.

[0081] As an embodiment, for a UE in an RRC connected state that is not configured with CA / DC (carrier aggregation / dual connectivity), there is only one service cell including a primary cell. For a UE in an RRC connected state that is configured with CA / DC (carrier aggregation / dual connectivity), the service cell is used to indicate a set of cells including a special cell (SpCell) and all cells from the small cell. The primary cell (Primary Cell) is an MCG (Master Cell Group) cell that operates on the main frequency. The UE performs an initial connection establishment process or initiates connection reconstruction on the primary cell. For dual connection operations, the special cell refers to the PCell (Primary Cell) of the MCG or the PSCell (Primary SCGCell) of the SCG (Secondary Cell Group); if it is not a dual connection operation, the special cell refers to the PCell.

[0082] As an embodiment, the operating frequency of the SCell (Secondary Cell) is a secondary frequency.

[0083] As an example, individual contents of an information element are referred to as fields.

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

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

[0086] As an embodiment, MCG refers to a group of service cells associated with a master node in MR-DC, including SpCells, and may also, optionally, include one or more SCells.

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

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

[0089] As an embodiment, in MR-DC, the control plane connection to the core network is not provided, and the radio access node that provides additional resources to the UE is a slave node. The slave node can be an en-gNB, a slave ng-eNB or a slave gNB.

[0090] As an embodiment, in MR-DC, a group of service cells associated with a slave node is a SCG (secondary cell group), including a SpCell and, optionally, one or more SCells.

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

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

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

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

[0095] As an embodiment, the first node is only configured with MCG but not with SCG.

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

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

[0098] As a sub-embodiment of this embodiment, the method proposed in the present application can also achieve beneficial effects in a scenario where SCell is not configured.

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

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

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

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

[0103] As an embodiment, the first configuration information includes an RRC message.

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

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

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

[0107] As an embodiment, compared with the signaling of the MAC layer and the physical layer, such as DCI (downlink control information), the advantage of being generated by the RRC layer is reliability, because the signaling of the RRC layer needs to be fed back.

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

[0109] As an embodiment, the RadioLinkMonitoringRS included in the first configuration information is used to configure the multiple RS resources.

[0110] As a sub-embodiment of this embodiment, the RadioLinkMonitoringRS included in the first configuration information indicates at least one SSB index, and the at least one SSB index indicated by the RadioLinkMonitoringRS included in the first configuration information identifies the multiple RS resources.

[0111] As a sub-embodiment of this embodiment, the RadioLinkMonitoringRS included in the first configuration information indicates at least one SSB index, and the at least one SSB index indicated by the RadioLinkMonitoringRS included in the first configuration information identifies a portion of RS resources among the multiple RS resources.

[0112] As a sub-embodiment of this embodiment, the RadioLinkMonitoringRS included in the first configuration information indicates at least one CSI-RS identity, and the at least one CSI-RS identity indicated by the RadioLinkMonitoringRS included in the first configuration information identifies the multiple RS resources.

[0113] As a sub-embodiment of this embodiment, the RadioLinkMonitoringRS included in the first configuration information indicates at least one CSI-RS identity, and the at least one CSI-RS identity indicated by the RadioLinkMonitoringRS included in the first configuration information identifies a part of the RS resources of the multiple RS resources.

[0114] As an embodiment, the BeamFailureRecoveryConfig included in the first configuration information is used to configure the multiple RS resources.

[0115] As a sub-embodiment of this embodiment, the BeamFailureRecoveryConfig included in the first configuration information indicates at least one SSB index, and the at least one SSB index indicated by the BeamFailureRecoveryConfig included in the first configuration information identifies the multiple RS resources.

[0116] As an embodiment, the RadioLinkMonitoringRS included in the first configuration information is used to configure at least a part of the RS resources among the multiple RS resources.

[0117] As a sub-embodiment of this embodiment, the RadioLinkMonitoringRS included in the first configuration information indicates at least one SSB index, and the at least one SSB index indicated by the RadioLinkMonitoringRS included in the first configuration information identifies at least a portion of the RS resources among the multiple RS resources.

[0118] As an embodiment, the RadioLinkMonitoringRS included in the first configuration information is used to configure the RS resources belonging to the active BWP among the multiple RS resources.

[0119] As a sub-embodiment of this embodiment, the RadioLinkMonitoringRS included in the first configuration information indicates at least one SSB index, and the at least one SSB index indicated by the RadioLinkMonitoringRS included in the first configuration information identifies the RS resources belonging to the active BWP among the multiple RS resources.

[0120] As an embodiment, the RadioLinkMonitoringRS included in the first configuration information is used to configure RS resources among the multiple RS resources that do not belong to the active BWP.

[0121] As a sub-embodiment of this embodiment, the RadioLinkMonitoringRS included in the first configuration information indicates at least one SSB index, and the at least one SSB index indicated by the RadioLinkMonitoringRS included in the first configuration information identifies RS resources among the multiple RS resources that do not belong to the active BWP.

[0122] As an embodiment, the BeamLinkMonitoringRS included in the first configuration information is used to configure at least part of the RS resources among the multiple RS resources.

[0123] As a sub-embodiment of this embodiment, the BeamLinkMonitoringRS included in the first configuration information indicates at least one SSB index, and the at least one SSB index indicated by the BeamLinkMonitoringRS included in the first configuration information identifies the RS resources belonging to the active BWP among the multiple RS resources.

[0124] As an embodiment, the detectionResource included in the first configuration information indicates the multiple RS resources.

[0125] As a sub-embodiment of this embodiment, the first configuration information includes a list, and each item in the list includes a detectionResource.

[0126] As a sub-embodiment of this embodiment, the detectionResource included in the first configuration information includes at least one SSB index, and each SSB index identifies at least one RS resource among the multiple RS resources.

[0127] As an embodiment, the ssb-index included in the first configuration information indicates the at least one SSB index.

[0128] As an embodiment, the purpose of at least one SSB index included in the first configuration information indication is wireless link monitoring.

[0129] As a sub-embodiment of this embodiment, the at least one SSB index included in the first configuration information identifies the multiple RS resources.

[0130] As an embodiment, the wireless link monitoring includes wireless link failure.

[0131] As an embodiment, the wireless link monitoring includes beam failure detection.

[0132] As an embodiment, the wireless link monitoring includes wireless link monitoring and beam failure detection.

[0133] As an embodiment, the wireless link monitoring includes beam link monitoring.

[0134] As an embodiment, at least one SSB index included in the first configuration information indicates the multiple RS resources.

[0135] As an embodiment, one SSB is or corresponds to one RS resource.

[0136] As an embodiment, each SSB index of at least one SSB index included in the first configuration information is used to identify an SSB.

[0137] As an embodiment, each SSB index of at least one SSB index included in the first configuration information is used to identify at least one SSB.

[0138] As an embodiment, the network indicates which SSB index identifies the SSB received by the first node.

[0139] As an embodiment, configuring an SSB includes configuring an index that identifies the SSB.

[0140] As an embodiment, the system information associated with the SSB received by the first node indicates which SSB index identifies this SSB.

[0141] As an embodiment, the network indicates, for example via a system information block, how the SSB index identifies the SSB.

[0142] As an embodiment, the RS resource identified by at least one SSB index included in the first configuration information is an RLM-RS resource.

[0143] As an embodiment, the at least one SSB index included in the first configuration information is the q0 set.

[0144] As an embodiment, the at least one SSB index included in the first configuration information is gather.

[0145] As a sub-embodiment of this embodiment, the at least one SSB index included in the first configuration information identifies the multiple RS resources.

[0146] As an embodiment, the RS resource identified by the at least one SSB index included in the first configuration information is the q0 set.

[0147] As an embodiment, the first configuration information configures the purpose of the at least one SSB index.

[0148] As a sub-embodiment of this embodiment, the purpose is wireless link monitoring.

[0149] As a sub-embodiment of this embodiment, the purpose includes wireless link failure.

[0150] As a sub-embodiment of this embodiment, the purpose includes beam failure detection.

[0151] As a sub-embodiment of this embodiment, the purpose includes beam failure recovery.

[0152] As an embodiment, the first configuration information indicates the purpose of the at least one SSB index.

[0153] As a sub-embodiment of this embodiment, the purpose is wireless link monitoring.

[0154] As a sub-embodiment of this embodiment, the purpose includes wireless link failure.

[0155] As a sub-embodiment of this embodiment, the purpose includes beam failure detection.

[0156] As a sub-embodiment of this embodiment, the purpose includes beam failure recovery.

[0157] As an embodiment, the first configuration information configures the period of the SSB identified by each SSB index in the at least one SSB index.

[0158] As an embodiment, the first configuration information is for configuring at least one SSB index for the active BWP to monitor the wireless link.

[0159] As an embodiment, the RRC message including the first configuration information is the first signaling.

[0160] As an embodiment, the RRC message including the first configuration information is RRCReconfiguration.

[0161] As an embodiment, the RRC message including the first configuration information is RRCConnectionReconfiguration.

[0162] As an embodiment, the RRC message including the first configuration information is RRCReconfigurationNR.

[0163] As an embodiment, the RRC message including the first configuration information is RRCReconfigurationENR.

[0164] As an embodiment, the configuration information of a BWP configured by the RRC message including the first configuration information includes the first configuration information.

[0165] As a sub-embodiment of this embodiment, the one BWP configured by the RRC message including the first configuration information is the active BWP.

[0166] As an embodiment, the RRC message including the first configuration information configures an SSB index for radio link monitoring for each BWP.

[0167] As an embodiment, a UE has only one active BWP.

[0168] As an embodiment, the current BWP of a UE is the active BWP.

[0169] As an embodiment, after accessing the network, which BWP is configured as the active BWP is based on a network algorithm, for example, UEs are allocated according to the load balancing of each BWP, and a suitable BWP is selected according to the traffic volume of the service to be transmitted by the UE. Configuring a BWP that is too wide wastes the energy of the UE, and configuring a BWP that is too narrow cannot meet the service needs of the UE.

[0170] As an embodiment, for a BWP, a number of SSB indexes are configured based on network implementation, for example, according to how many SSBs are transmitted. When the number of transmitted SSBs is large enough, at least one is selected according to a fixed algorithm or randomly.

[0171] As an embodiment, for a BWP, how many SSB indexes are configured is based on the carrier frequency. For FR1 (frequency range 1) below 3 GHz, at most 2 SSB indexes can be configured for wireless link monitoring; for FR1 above 3 GHz, at most 4 SSB indexes can be configured for wireless link monitoring; for FR2 (frequency range 2), at most 8 SSB indexes can be configured for wireless link monitoring.

[0172] As an embodiment, the RS resource is a resource used for RS.

[0173] As an embodiment, the RS resource is a resource reserved for the RS.

[0174] As an embodiment, the RS resource is a resource allocated to the RS.

[0175] As an embodiment, the RS resource is a resource for transmitting the RS.

[0176] As an embodiment, the RS resource is SSB.

[0177] As an embodiment, the RS resource is an SSB resource.

[0178] As an embodiment, the RS resource is a CSI-RS (channel state information reference signal) resource.

[0179] As an embodiment, performing wireless link monitoring according to the multiple RS resources includes: performing wireless link monitoring on the multiple RS resources.

[0180] As an embodiment, performing wireless link monitoring according to the multiple RS resources includes: performing measurements on the multiple RS resources, and determining wireless link quality according to the measurement results.

[0181] As an embodiment, the measurement result obtained by measuring on the RS resource includes RSRP (Reference Signal Receiving Power).

[0182] As an embodiment, the measurement result obtained by measuring on the RS resource includes RSRQ (Reference Signal Receiving Quality).

[0183] As an embodiment, the measurement result obtained by measuring on the RS resources includes SNR (SIGNAL-NOISE RATIO, signal-to-noise ratio).

[0184] As an embodiment, determining the quality of the wireless link according to the measurement result includes: judging whether the measurement result is higher than a specific threshold.

[0185] As an embodiment, determining the quality of the wireless link according to the measurement result includes: determining whether the measurement result is lower than a specific threshold.

[0186] As an embodiment, the specific threshold is fixed by the protocol.

[0187] As an embodiment, the specific threshold is network configured.

[0188] As an embodiment, determining the quality of the wireless link according to the measurement result includes: judging what the quality of the wireless link according to the measurement result is, or whether it is worse than a first threshold.

[0189] As an embodiment, determining the quality of the wireless link according to the measurement result includes: estimating the receiving performance according to the measurement result, for example, estimating the quality of the wireless link by means of table mapping.

[0190] As a sub-embodiment of this embodiment, the estimated radio link quality is the radio link quality on a fixedly configured PDCCH.

[0191] As a sub-embodiment of this embodiment, the table used for estimation can be obtained through simulation or existing network measurement.

[0192] As an embodiment, the wireless link quality includes BLER (block error ratio, block error rate).

[0193] As a sub-embodiment of this embodiment, the estimated radio link quality is a block error rate on a fixedly configured PDCCH.

[0194] As an embodiment, the estimated radio link quality is a block error rate on a fixedly configured PDSCH.

[0195] As an embodiment, the estimated radio link quality is a block error rate on a fixedly configured PBCH.

[0196] As an embodiment, the fixed configuration for the channel to be estimated is prior art.

[0197] As an embodiment, the wireless link quality includes a BLER (block error ratio) on a specifically configured channel.

[0198] As an embodiment, the wireless link quality includes a BLER (block error ratio) on a specifically configured PDCCH channel.

[0199] As an embodiment, the meaning of a fixedly configured PDCCH includes: assuming that the channel quality of the PDCCH is the measurement result on the RS resource identified by the at least one SSB index, or assuming that the PDCCH is sent on a channel of the measurement result quality.

[0200] As an embodiment, the meaning of a fixedly configured PDCCH includes: the configuration of the PDCCH, such as the coding rate and the code block size, is the fixedly configured one.

[0201] As an embodiment, determining the quality of the wireless link according to the measurement result includes: judging whether the estimated BLER is lower than a first threshold.

[0202] As an embodiment, the first threshold is equal to 2%.

[0203] As an embodiment, the first threshold is equal to 10%.

[0204] As an embodiment, the first threshold is fixed.

[0205] As an embodiment, the first threshold is configurable.

[0206] As an embodiment, the first threshold depends on the wireless access technology.

[0207] As an embodiment, the first threshold value depends on the purpose of wireless link monitoring.

[0208] As an embodiment, when the radio link monitoring is for RLF (radio link failure), the first threshold is 10%.

[0209] As an embodiment, when the wireless link monitoring is for beam management, the first threshold is 5% or is configurable.

[0210] As an embodiment, determining the radio link quality according to the measurement result includes: performing measurement on each RS resource of the multiple RS resources, and estimating the radio link quality on each RS resource respectively according to the measurement result.

[0211] As an embodiment, determining the quality of the wireless link according to the measurement result includes: performing measurement on all RS resources of the multiple RS resources, and estimating the quality of the wireless link according to the measurement result.

[0212] As an embodiment, determining the quality of the wireless link according to the measurement results includes: performing measurements on the multiple RS resources, and estimating a wireless link quality according to a combination of the measurement results on the multiple RS resources, such as an average of the measurement results.

[0213] As an embodiment, determining the quality of the wireless link according to the measurement result includes: performing measurement on all RS resources of the multiple RS resources, and estimating a wireless link quality according to the measurement result.

[0214] As an embodiment, the resources occupied, allocated or configured by the SSB identified by the at least one SSB index are RS resources identified by the at least one SSB index.

[0215] As an embodiment, the resources occupied, allocated or configured by the SSB identified by the at least one SSB index are the multiple RS resources.

[0216] As an embodiment, in the prior art, the terminal cannot perform wireless link monitoring based on RS resources other than the active BWP, such as SSB, that is, the terminal can only perform wireless link monitoring based on RS resources within the active BWP, such as SSB; the existing counting will bring about the problem of inaccurate and / or untimely wireless link monitoring. The method proposed in the present application uses multiple RS resources other than the active BWP for wireless link monitoring, which solves the above problems and makes the wireless link monitoring more accurate and / or more timely.

[0217] As an embodiment, the sentence whenever the wireless link quality on the multiple RS resources is worse than the first threshold includes: performing measurement on each of the multiple RS resources, and estimating the wireless link quality on each RS resource respectively according to the measurement results.

[0218] As an embodiment, the sentence “whenever the quality of the wireless link on the multiple RS resources is worse than the first threshold” means or includes: whenever the quality of the wireless link on the multiple RS resources is worse than the first threshold.

[0219] As an embodiment, the layer 1 is a physical layer.

[0220] As an embodiment, the layer 1 is the PHY sublayer in Embodiment 3.

[0221] As an embodiment, the higher layer is a higher layer of layer 1.

[0222] As an embodiment, the higher layer includes one of a MAC layer, an RRC layer, and a NAS layer.

[0223] As an embodiment, the higher layer is the RRC layer.

[0224] As an embodiment, the first type of indication is or includes an out-of-sync indication.

[0225] As an embodiment, the first type of indication is or includes a beam failure indication for a TRP.

[0226] As an embodiment, the first type of indication is or includes a beam failure indication.

[0227] As an embodiment, the first type of indication is or includes a beam failure instance indication.

[0228] As an embodiment, when the first type of indication is out-of-sync, the higher layer is the RRC layer.

[0229] As an embodiment, when the first type of indication is a beam failure instance indication, the higher layer is a MAC layer.

[0230] As an embodiment, the continuous first-category indications are two adjacent first-category indications without any other indications between them.

[0231] As an embodiment, the continuous first-type indications are two adjacent out-of-sync indications without including an in-sync indication between them.

[0232] As an embodiment, the continuous first type of indication is that no wireless link quality on any RS resource among the multiple RS resources is found to be not worse than the first threshold between two adjacent beam failure indications.

[0233] As an embodiment, the continuous first type of indication is that between two adjacent out-of-sync indications, no radio link quality on any RS resource among the multiple RS resources is found to be not worse than the first threshold.

[0234] As an embodiment, the consecutive first-category indications are two first-category indications that are closest in time.

[0235] As a sub-embodiment of this embodiment, the first type of indication is for the same cell, and the first type of indication is out-of-sync.

[0236] As a sub-embodiment of this embodiment, the first type of indication is for the same beam, and the first type of indication is a beam failure instance indication.

[0237] As a sub-embodiment of this embodiment, the first type of indication is for the same RS set, and the first type of indication is a beam failure instance indication.

[0238] As a sub-embodiment of this embodiment, the first type of indication is for the same RS set used for beam failure detection, and the first type of indication is a beam failure instance indication.

[0239] As an embodiment, the first type of indication is for the at least one SSB index.

[0240] As an embodiment, the first type of indication is for the multiple RS resources.

[0241] As an embodiment, the at least one SSB index belonging to the active BWP means that the SSB identified by the at least one SSB index belongs to the active BWP.

[0242] As an embodiment, the at least one SSB index belonging to the active BWP means that the SSB identified by the at least one SSB index belongs to the active BWP in the frequency domain.

[0243] As an embodiment, whether the at least one SSB index belongs to the active BWP or does not belong to the active BWP does not mean whether the at least one SSB index is for wireless link monitoring of the active BWP.

[0244] As an embodiment, the at least one SSB index not belonging to the active BWP means that the at least one SSB index belongs outside the active BWP.

[0245] As an embodiment, the at least one SSB index not belonging to the active BWP means that the at least one SSB index is outside the active BWP.

[0246] As an embodiment, the at least one SSB index not belonging to the active BWP means that none of the SSBs identified by the at least one SSB index belongs to the active BWP.

[0247] As an embodiment, the at least one SSB index not belonging to the active BWP means that the SSBs identified by the at least one SSB index are all outside the active BWP.

[0248] As an embodiment, the at least one SSB index not belonging to the active BWP means that the SSB identified by the at least one SSB index does not belong to the active BWP in the frequency domain.

[0249] As an embodiment, the at least one SSB index not belonging to the active BWP means that the SSB identified by the at least one SSB index is outside the active BWP in the frequency domain.

[0250] As an embodiment, the at least one SSB index either all belongs to the active BWP or none of the SSB indexes belongs to the active BWP.

[0251] As an embodiment, the phrase that the multiple RS resources include at least two RS resources on different BWPs means that the multiple RS resources include at least one RS resource belonging to the active BWP, and the multiple RS resources include at least one RS resource that does not belong to the active BWP.

[0252] As an embodiment, the at least one RS resource belonging to the active BWP is an RS resource belonging to the active BWP in the frequency domain.

[0253] As an embodiment, the at least one RS resource belonging to the active BWP is an RS resource belonging to the active BWP in the frequency domain.

[0254] As an embodiment, the SSB index identifying the at least one RS resource belonging to the active BWP all belongs to the active BWP.

[0255] As an embodiment, the at least one RS resource belonging to the active BWP or not belonging to the active BWP does not mean whether the RS resource is for wireless link monitoring of the active BWP.

[0256] As an embodiment, the at least one RS resource that does not belong to the active BWP is a BWP in which the multiple RS resources include at least one RS resource that belongs to a BWP other than the active BWP.

[0257] As an embodiment, the at least one RS resource that does not belong to the active BWP is that the multiple RS resources include at least one RS resource that does not belong to the active BWP in the frequency domain.

[0258] As an embodiment, in the present application, different BWPs do not overlap in the frequency domain.

[0259] As an embodiment, the at least one RS resource that does not belong to the active BWP is an SSB index that identifies the at least one RS resource that does not belong to the active BWP and does not belong to the active BWP.

[0260] As an embodiment, any RS resource among at least one RS resource that does not belong to the active BWP does not belong to the active BWP.

[0261] As an embodiment, any RS resource among the multiple RS resources either belongs to the active BWP or does not belong to the active BWP.

[0262] As an embodiment, the phrase that the multiple RS resources include at least two RS resources on different BWPs means that the multiple RS resources include RS resources belonging to one BWP and RS resources belonging to another BWP.

[0263] As an embodiment, the phrase that the multiple RS resources include at least two RS resources on different BWPs means that: the SSB index identifying the multiple RS resources includes an SSB index belonging to one BWP and an SSB index belonging to another BWP.

[0264] As an embodiment, the phrase that the multiple RS resources include at least two RS resources on different BWPs means that the multiple RS resources include RS resources belonging to an active BWP and RS resources not belonging to an active BWP.

[0265] As an embodiment, the phrase that the plurality of RS resources include at least two RS resources on different BWPs means that the plurality of RS resources include RS resources on an active BWP and RS resources that are not on an active BWP.

[0266] As an embodiment, the phrase that the multiple RS resources include at least two RS resources on different BWPs includes: the multiple RS resources include a first RS resource and a second RS resource, the first RS resource belongs to a first BWP; the second RS resource belongs to a second BWP.

[0267] As a sub-embodiment of this embodiment, the first BWP is an active BWP, and the second BWP is not an active BWP.

[0268] As an embodiment, the phrase "the multiple RS resources include at least two RS resources on different BWPs" means: the multiple RS resources include a first RS resource group and a second RS resource group, the first RS resource group belongs to the first BWP; the second RS resource group belongs to the second BWP; the first RS resource group includes at least one RS resource; the second RS resource group includes at least one RS resource.

[0269] As a sub-embodiment of this embodiment, the first BWP is an active BWP, and the second BWP is not an active BWP.

[0270] As an embodiment, the first configuration information includes at least two SSB indexes belonging to different BWPs, and the at least two SSB indexes belonging to different BWPs respectively identify the at least two RS resources on different BWPs.

[0271] As an embodiment, the meaning of an SSB index belonging to a BWP is that the SSB identified by the SSB is sent on the BWP.

[0272] As an embodiment, the meaning of an SSB index not belonging to a BWP is that the SSB identified by the SSB is not sent on the BWP.

[0273] As an embodiment, the first signaling includes a first SSB index, and the first SSB index identifies the at least two RS resources on different BWPs.

[0274] As an embodiment, the first configuration information includes a first SSB index, and the first SSB index identifies the at least two RS resources on different BWPs.

[0275] As an embodiment, whether an RS resource belongs to a BWP depends on the frequency domain information of the RS resource rather than the time domain information.

[0276] As an embodiment, the network indicates which SSBs are identified by the first SSB index.

[0277] As an embodiment, the first signaling or the first configuration information indicates which SSBs are identified by the first SSB index.

[0278] As an embodiment, the first SSB index identifies multiple SSBs on different frequency domains.

[0279] As an embodiment, the first SSB index identifies multiple qualified SSBs in different frequency domains, and the qualified conditions are at a certain time or a certain time window.

[0280] As an embodiment, the first signaling or the first configuration information indicates a condition among the conditions that meet the conditions.

[0281] As an embodiment, the wireless link monitoring is for a service cell.

[0282] As a sub-embodiment of this embodiment, the wireless link monitoring is for SpCel.

[0283] As a sub-embodiment of this embodiment, the wireless link monitoring is for PCel.

[0284] As a sub-embodiment of this embodiment, the wireless link monitoring is for PSCel.

[0285] As an embodiment, the wireless link monitoring is for a service cell group.

[0286] As a sub-embodiment of this embodiment, the wireless link monitoring is for MCG.

[0287] As a sub-embodiment of this embodiment, the wireless link monitoring is for SCG.

[0288] As an embodiment, the at least one SSB index belonging to the active BWP is an NCD-SSB index.

[0289] As an embodiment, the RS resource belonging to the active BWP among the multiple RS resources is an NCD-SSB.

[0290] As an embodiment, the at least one SSB index that does not belong to the active BWP is a CD-SSB index.

[0291] As an embodiment, the RS resource among the multiple RS resources that does not belong to the active BWP is a CD-SSB.

[0292] As an embodiment, the active BWP includes discontinuous frequency domain resources.

[0293] As a sub-embodiment of this embodiment, the RS resource identified by the at least one SSB index that does not belong to the active BWP is located between the lowest frequency and the highest frequency of the active BWP in the frequency domain.

[0294] As a sub-embodiment of this embodiment, the RS resources among the multiple RS resources that do not belong to the active BWP are located between the lowest frequency and the highest frequency of the active BWP in the frequency domain.

[0295] As an embodiment, the behavior of receiving the first configuration information includes: receiving a first signaling, the first signaling includes a first field, and the first field of the first signaling includes the first configuration information.

[0296] As an embodiment, the first field of the first signaling is BWP-DownlinkDedicated, and the first field of the first signaling configures a BWP.

[0297] As a sub-embodiment of this embodiment, at least one RS resource among the multiple RS resources belongs to the one BWP in the frequency domain.

[0298] As a sub-embodiment of this embodiment, at least one RS resource among the multiple RS resources does not belong to the one BWP in the frequency domain.

[0299] As an embodiment, the minimum time interval between consecutive first-type indications depends on the shortest period of the multiple RS resources.

[0300] As a sub-embodiment of this embodiment, consecutive first-category indications are indications of the same type, for example, all are out-of-sync, or for example, all are beam failure instance indications.

[0301] As an embodiment, the shortest period of the multiple RS resources is the shortest one among the periods of each RS resource of the multiple RS resources.

[0302] As an embodiment, each of the multiple RS resources is periodic.

[0303] As an embodiment, the first configuration information indicates a period of each RS resource among the multiple RS resources.

[0304] As an embodiment, the first signaling indicates the period of each RS resource among the multiple RS resources.

[0305] As an embodiment, the system information block indicates a period of each RS resource among the multiple RS resources.

[0306] As an embodiment, the network indicates the period of each RS resource in the plurality of RS resources.

[0307] As an embodiment, the RS resources include CSI-RS resources.

[0308] As an embodiment, the RS resources include SSB resources.

[0309] As an embodiment, the RS resources include CRS (cell reference signal) resources.

[0310] As an embodiment, the RS resources include PRS (Positioning reference signal, positioning reference signal) resources.

[0311] As an embodiment, the multiple RS resources include two RS resources.

[0312] As an embodiment, the multiple RS resources include three RS resources.

[0313] As an embodiment, the multiple RS resources include 4 RS resources.

[0314] As an embodiment, the multiple RS resources include 8 RS resources.

[0315] As an embodiment, the number of the multiple RS resources depends on the operating carrier frequency.

[0316] As an embodiment, the number of the multiple RS resources is variable.

[0317] As an embodiment, the multiple RS resources are non-overlapping in frequency.

[0318] As an embodiment, the minimum time interval between the consecutive first-type indications is greater than 0.

[0319] As an embodiment, the RS resources identified by each SSB index of at least one SSB index identifying the multiple RS resources included in the first configuration information are periodic.

[0320] As an embodiment, the shortest period of the multiple RS resources means that each RS resource in the multiple RS resources is periodic.

[0321] As an embodiment, those skilled in the art should understand that, unless a mechanism is specifically specified, the period for the first node to acquire RS resources is a prior art, for example, determined by a network indication.

[0322] As an embodiment, the shortest period of the multiple RS resources refers to: the shortest one among the periodicities of each RS resource in the multiple RS resources is the shortest period.

[0323] As an embodiment, the shortest period of the multiple RS resources means that each RS resource in the multiple RS resources has a period, so there are multiple periods, the shortest one of which is the shortest period.

[0324] As an embodiment, the candidates for the shortest period of the multiple RS resources include one of 5ms, 10ms, 20ms, 40ms, 80ms, and 160ms.

[0325] As an embodiment, the shortest period of any RS resource among the multiple RS resources is not less than 5ms.

[0326] As an embodiment, the higher layer receives N1 consecutive first-type indications within a first target time length, triggering a radio link failure.

[0327] As a sub-embodiment of this embodiment, the first target time length and the N1 are both network configured.

[0328] As an embodiment, the higher layer receives N2 consecutive indications of the first type within a second target time length, triggering a beam failure or triggering a beam failure recovery process.

[0329] As a sub-embodiment of this embodiment, the second target time length and the N2 are both network configured.

[0330] As an embodiment, the cells associated with or corresponding to the multiple RS resources are not deactivated.

[0331] As an embodiment, the multiple RS resources belong to the PCell of the first node.

[0332] As an embodiment, the first configuration information indicates frequency information of at least an RS resource that does not belong to an active BWP among the multiple RS resources.

[0333] As an embodiment, the first configuration information configures multiple RS resources for wireless link monitoring and includes frequency information indicating the multiple RS resources or the BWP identities to which they belong.

[0334] As an embodiment, only when an RS resource among the multiple RS resources does not belong to the active BWP of the first node, the first configuration information explicitly indicates the frequency information of the RS resource among the multiple RS resources that does not belong to the active BWP of the first node.

[0335] As a sub-embodiment of this embodiment, frequency information of RS resources of the multiple RS resources belonging to the active BWP of the first node is implicitly indicated.

[0336] As an embodiment, the frequency information includes frequency point information.

[0337] As an embodiment, the frequency information includes frequency band information.

[0338] As an embodiment, the frequency information includes sub-band information.

[0339] As an embodiment, the frequency information includes carrier information.

[0340] As an embodiment, the frequency information includes the identity of the BWP.

[0341] As an embodiment, when the multiple RS resources include RS resources that do not belong to the active BWP, the frequency of the RS resources that do not belong to the active BWP is unclear, which is prone to confusion or misjudgment, affecting the performance of wireless link monitoring. The frequency of the RS resources can be clarified through the first configuration information, thereby improving the performance of wireless link monitoring; for the RS resources belonging to the active BWP, since the frequency domain information is clear, that is, within the active BWP, not indicating the specific frequency information is beneficial to saving signaling overhead.

[0342] Example 2

[0343] Embodiment 2 illustrates a schematic diagram of a network architecture according to the present application, as shown in the attached Figure 2 shown.

[0344] Attached Figure 2A diagram of a network architecture 200 for 5G NR, LTE (Long-Term Evolution) and LTE-A (Long-Term Evolution Advanced) systems is illustrated. The 5G NR or LTE network architecture 200 may be referred to as 5GS (5G System) / EPS (Evolved Packet System) 200 or some other suitable terminology. The 5GS / EPS 200 may include one or more UEs (User Equipment) 201, NG-RAN (Next Generation Radio Access Network) 202, 5GC (5G Core Network) / EPC (Evolved Packet Core) 210, HSS (Home Subscriber Server) / UDM (Unified Data Management) 220, and Internet services 230. The 5GS / EPS may be interconnected with other access networks, but these entities / interfaces are not shown for simplicity. As shown, 5GS / EPS provides packet-switched services, however, those skilled in the art will readily appreciate that the various concepts presented throughout this application can be extended to networks providing circuit-switched services or other cellular networks. NG-RAN includes NR Node B (gNB) 203 and other gNBs 204. gNB 203 provides user and control plane protocol terminations toward UE 201. gNB 203 can be connected to other gNBs 204 via an Xn interface (e.g., backhaul). gNB 203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a basic service set (BSS), an extended service set (ESS), a TRP (transmitting receiving node), or some other suitable term. gNB 203 provides an access point to 5GC / EPC 210 for UE 201. Examples of UE 201 include cellular phones, smart phones, session initiation protocol (SIP) phones, laptop computers, personal digital assistants (PDAs), satellite radios, non-terrestrial base station communications, satellite mobile communications, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, drones, aircraft, narrowband Internet of Things devices, machine type communication devices, land vehicles, cars, wearable devices, or any other similar functional devices. Those skilled in the art may also refer to UE 201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable term.gNB203 is connected to 5GC / EPC210 via the S1 / NG interface. 5GC / EPC210 includes MME (Mobility Management Entity) / AMF (Authentication Management Field) / SMF (Session Management Function) 211, other MME / AMF / SMF214, S-GW (Service Gateway) / UPF (User Plane Function) 212, and P-GW (Packet Data Network Gateway) / UPF213. MME / AMF / SMF211 is the control node that handles signaling between UE201 and 5GC / EPC210. ​​In general, MME / AMF / SMF211 provides bearer and connection management. All user IP (Internet Protocol) packets are transmitted through S-GW / UPF212, which itself is connected to P-GW / UPF213. P-GW provides UE IP address allocation and other functions. P-GW / UPF213 is connected to Internet service 230. Internet service 230 includes operator-corresponding Internet protocol services, which may specifically include Internet, Intranet, IMS (IP Multimedia Subsystem) and packet-switched streaming services.

[0345] As an embodiment, the first node in the present application is UE201.

[0346] As an embodiment, the base station of the second node in the present application is gNB203.

[0347] As an embodiment, the wireless link from the UE201 to the NR Node B is an uplink.

[0348] As an embodiment, the wireless link from the NR Node B to UE201 is a downlink.

[0349] As an embodiment, the UE 201 supports relay transmission.

[0350] As an embodiment, the UE 201 includes a mobile phone.

[0351] As an embodiment, the UE 201 is a vehicle including a car.

[0352] As an embodiment, the gNB203 is a macrocellular base station.

[0353] As an embodiment, the gNB203 is a micro cell base station.

[0354] As an embodiment, the gNB203 is a picoCell base station.

[0355] As an embodiment, the gNB203 is a flying platform device.

[0356] As an embodiment, the gNB203 is a satellite device.

[0357] Example 3

[0358] Embodiment 3 shows a schematic diagram of an embodiment of a wireless protocol architecture of a user plane and a control plane according to the present application, as shown in the attached Figure 3 shown. Figure 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300, Figure 3The radio protocol architecture of the control plane 300 for a first node (UE, satellite or aircraft in gNB or NTN) and a second node (satellite or aircraft in gNB, UE or NTN), or between two UEs is shown in three layers: Layer 1, Layer 2, and Layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to as PHY301 in this article. Layer 2 (L2 layer) 305 is above PHY301 and is responsible for the link between the first node and the second node and the two UEs through PHY301. The L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the second node. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by encrypting data packets, and provides support for inter-zone mobility of the first node between the second node. The RLC sublayer 303 provides segmentation and reassembly of upper layer data packets, retransmission of lost data packets, and reordering of data packets to compensate for out-of-order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in a cell between the first nodes. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in layer 3 (L3 layer) in the control plane 300 is responsible for obtaining radio resources (i.e., radio bearers) and configuring the lower layer using RRC signaling between the second node and the first node. The PC5-S (PC5 Signaling Protocol) sublayer 307 is responsible for processing the signaling protocol of the PC5 interface. The radio protocol architecture of the user plane 350 includes Layer 1 (L1 layer) and Layer 2 (L2 layer). The radio protocol architecture for the first node and the second node in the user plane 350 is substantially the same as the corresponding layers and sublayers in the control plane 300 for the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355, and the MAC sublayer 352 in the L2 layer 355, but the PDCP sublayer 354 also provides header compression for upper layer data packets to reduce radio transmission overhead.The L2 layer 355 in the user plane 350 also includes an SDAP (Service Data Adaptation Protocol) sublayer 356, which is responsible for mapping between QoS flows and data radio bearers (DRBs) to support the diversity of services. SRB can be regarded as a service or interface provided by the PDCP layer to a higher layer, such as the RRC layer. In the NR system, SRBs include SRB1, SRB2, SRB3, and SRB4 when it comes to sidelink communication, which are used to transmit different types of control signaling. SRB is a bearer between the UE and the access network, and is used to transmit control signaling including RRC signaling between the UE and the access network. SRB1 has special significance for the UE. After each UE establishes an RRC connection, there will be SRB1 for transmitting RRC signaling. Most of the signaling is transmitted through SRB1. If SRB1 is interrupted or unavailable, the UE must perform RRC reconstruction. SRB2 is generally only used to transmit NAS signaling or signaling related to security. The UE may not configure SRB3. Except for emergency services, the UE must establish an RRC connection with the network for subsequent communication. Although not shown, the first node may have several upper layers above the L2 layer 355. In addition, it also includes a network layer (e.g., IP layer) terminated at the P-GW on the network side and an application layer terminated at the other end of the connection (e.g., remote UE, server, etc.). A protocol sublayer may also be referred to as a protocol layer.

[0359] As an example, Figure 3 The wireless protocol architecture in is applicable to the first node in this application.

[0360] As an example, Figure 3 The wireless protocol architecture in is applicable to the second node in this application.

[0361] As an embodiment, the first configuration information is generated in RRC306.

[0362] As an embodiment, the first signaling is generated in RRC306.

[0363] Example 4

[0364] Embodiment 4 shows a schematic diagram of a first communication device and a second communication device according to an embodiment of the present application, as shown in the attached figure. Figure 4 shown. Figure 4 is a block diagram of a first communication device 450 and a second communication device 410 communicating with each other in an access network.

[0365] The first communication device 450 includes a controller / processor 459, a memory 460, a data source 467, a transmit processor 468, a receive processor 456, and may optionally also include a multi-antenna transmit processor 457, a multi-antenna receive processor 458, a transmitter / receiver 454 and an antenna 452.

[0366] The second communication device 410 includes a controller / processor 475 , a memory 476 , a receiving processor 470 , a transmitting processor 416 , and may optionally also include a multi-antenna receiving processor 472 , a multi-antenna transmitting processor 471 , a transmitter / receiver 418 and an antenna 420 .

[0367] In the transmission from the second communication device 410 to the first communication device 450, at the second communication device 410, the upper layer data packets from the core network are provided to the controller / processor 475. The controller / processor 475 implements the functionality of the L2 (Layer-2) layer. In the transmission from the second communication device 410 to the first communication device 450, the controller / processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the first communication device 450 based on various priority metrics. The controller / processor 475 is also responsible for the retransmission of lost packets and signaling to the first communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the L1 layer (i.e., the physical layer). The transmit processor 416 implements coding and interleaving to facilitate forward error correction (FEC) at the second communication device 410, as well as mapping of signal constellations based on various modulation schemes (e.g., binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), M-phase shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM)). The multi-antenna transmit processor 471 performs digital spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing on the coded and modulated symbols to generate one or more spatial streams. The transmit processor 416 then maps each spatial stream to a subcarrier, multiplexes it with a reference signal (e.g., a pilot) in the time domain and / or frequency domain, and then uses an inverse fast Fourier transform (IFFT) to generate a physical channel carrying a time-domain multi-carrier symbol stream. The multi-antenna transmit processor 471 then performs a transmit analog precoding / beamforming operation on the time-domain multi-carrier symbol stream. Each transmitter 418 converts the baseband multi-carrier symbol stream provided by the multi-antenna transmit processor 471 into a radio frequency stream, and then provides it to a different antenna 420.

[0368] In the transmission from the second communication device 410 to the first communication device 450, at the first communication device 450, each receiver 454 receives a signal through its corresponding antenna 452. Each receiver 454 recovers the information modulated onto the RF carrier and converts the RF stream into a baseband multi-carrier symbol stream and provides it to the receiving processor 456. The receiving processor 456 and the multi-antenna receiving processor 458 implement various signal processing functions of the L1 layer. The multi-antenna receiving processor 458 performs a receiving analog precoding / beamforming operation on the baseband multi-carrier symbol stream from the receiver 454. The receiving processor 456 uses a fast Fourier transform (FFT) to convert the baseband multi-carrier symbol stream after the receiving analog precoding / beamforming operation from the time domain to the frequency domain. In the frequency domain, the physical layer data signal and the reference signal are demultiplexed by the receiving processor 456, wherein the reference signal will be used for channel estimation, and the data signal is recovered after multi-antenna detection in the multi-antenna receiving processor 458 to any spatial stream destined for the first communication device 450. The symbols on each spatial stream are demodulated and recovered in the receiving processor 456, and soft decisions are generated. The receiving processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals transmitted by the second communication device 410 on the physical channel. The upper layer data and control signals are then provided to the controller / processor 459. The controller / processor 459 implements the functions of the L2 layer. The controller / processor 459 may be associated with a memory 460 that stores program codes and data. The memory 460 may be referred to as a computer-readable medium. In the transmission from the second communication device 410 to the second communication device 450, the controller / processor 459 provides multiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover the upper layer data packets from the core network. The upper layer data packets are then provided to all protocol layers above the L2 layer. Various control signals may also be provided to L3 for L3 processing.

[0369] In the transmission from the first communication device 450 to the second communication device 410, at the first communication device 450, a data source 467 is used to provide upper layer data packets to the controller / processor 459. The data source 467 represents all protocol layers above the L2 layer. Similar to the transmission function at the second communication device 410 described in the transmission from the second communication device 410 to the first communication device 450, the controller / processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocation, and implements L2 layer functions for user plane and control plane. The controller / processor 459 is also responsible for the retransmission of lost packets and signaling to the second communication device 410. The transmit processor 468 performs modulation mapping and channel coding processing, and the multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing. Then, the transmit processor 468 modulates the generated spatial stream into a multi-carrier / single-carrier symbol stream, which is then provided to different antennas 452 via the transmitter 454 after analog precoding / beamforming operations in the multi-antenna transmit processor 457. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a radio frequency symbol stream, and then provides it to the antenna 452.

[0370] In the transmission from the first communication device 450 to the second communication device 410, the function at the second communication device 410 is similar to the reception function at the first communication device 450 described in the transmission from the second communication device 410 to the first communication device 450. Each receiver 418 receives a radio frequency signal through its corresponding antenna 420, converts the received radio frequency signal into a baseband signal, and provides the baseband signal to the multi-antenna reception processor 472 and the reception processor 470. The reception processor 470 and the multi-antenna reception processor 472 jointly implement the functions of the L1 layer. The controller / processor 475 implements the L2 layer functions. The controller / processor 475 can be associated with a memory 476 storing program codes and data. The memory 476 can be referred to as a computer-readable medium. In the transmission from the first communication device 450 to the second communication device 410, the controller / processor 475 provides multiplexing between transport and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover the upper layer data packets from the UE 450. Upper layer packets from controller / processor 475 may be provided to the core network.

[0371] As an embodiment, the first communication device 450 apparatus 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 together with the at least one processor, and the first communication device 450 apparatus at least: receives first configuration information, the first configuration information is configured for multiple RS resources for wireless link monitoring; the multiple RS resources include at least two RS resources on different BWPs; performs wireless link monitoring according to the multiple RS resources; wherein the behavior of performing wireless link monitoring includes: whenever the wireless link quality on the multiple RS resources is worse than a first threshold, a first type of indication is sent by layer 1 to a higher layer.

[0372] As an embodiment, the first communication device 450 includes: a memory storing a computer-readable instruction program, wherein the computer-readable instruction program generates an action when executed by at least one processor, and the action includes: receiving first configuration information, wherein the first configuration information is configured for multiple RS resources for wireless link monitoring; the multiple RS resources include at least two RS resources on different BWPs; performing wireless link monitoring according to the multiple RS resources; wherein the behavior of performing wireless link monitoring includes: whenever the quality of the wireless link on the multiple RS resources is worse than a first threshold, sending a first type of indication from layer 1 to a higher layer.

[0373] As an embodiment, the first communication device 450 corresponds to the first node in this application.

[0374] As an embodiment, the second communication device 410 corresponds to the second node in this application.

[0375] As an embodiment, the first communication device 450 is a UE.

[0376] As an embodiment, the first communication device 450 is a vehicle-mounted terminal.

[0377] As an embodiment, the second communication device 450 is a relay.

[0378] As an embodiment, the second communication device 410 is a satellite.

[0379] As an embodiment, the second communication device 410 is an aircraft.

[0380] As an embodiment, the second communication device 410 is a base station.

[0381] As an embodiment, the receiver 454 (including the antenna 452, the receiving processor 456 and the controller / processor 459) is used to receive the first configuration information in the present application.

[0382] As an embodiment, the transmitter 454 (including the antenna 452, the transmission processor 468 and the controller / processor 459) is used to send the first signaling in the present application.

[0383] Example 5

[0384] Embodiment 5 illustrates a wireless signal transmission flow chart according to an embodiment of the present application, as shown in the attached Figure 5 Attached Figure 5 In the example, U01 corresponds to the first node of the present application, and U02 corresponds to the second node of the present application. It is particularly noted that the order in this example does not limit the signal transmission order and implementation order in the present application, wherein the steps in F51 are optional.

[0385] for First node U01 , sending first capability information in step S5101; receiving first configuration information in step S5102; performing wireless link monitoring according to multiple RS resources in step S5103; and sending a first type of indication from layer 1 to a higher layer in step S5104.

[0386] for First node U02 , receiving first capability information in step S5201; and sending first configuration information in step S5202.

[0387] In Example 5, the first configuration information is configured as multiple RS resources for wireless link monitoring; the multiple RS resources include at least two RS resources on different BWPs; the behavior of performing wireless link monitoring includes: whenever the wireless link quality on the multiple RS resources is worse than a first threshold, a first type of indication is sent by layer 1 to a higher layer.

[0388] As an embodiment, the first node U01 is a UE, and the second node U02 is a service cell or a cell group of the first node U01.

[0389] As an embodiment, the first node U01 is a UE, and the second node U02 is a base station serving the first node U01.

[0390] As an embodiment, the first node U01 is a UE, and the second node U02 is the SpCell of the first node U01 or a base station corresponding to the SpCell.

[0391] As an embodiment, the first node U01 is a UE, and the second node U02 is the PCell of the first node U01 or a base station corresponding to the PCell.

[0392] As an embodiment, the interface between the first node U01 and the second node U02 is a Uu interface.

[0393] As an embodiment, step S5101 precedes step S5102.

[0394] As an embodiment, step S5102 precedes step S5103.

[0395] As an embodiment, step S5103 precedes step S5104.

[0396] As an embodiment, the first capability information includes UE Capability Information.

[0397] As an embodiment, the first capability information indicates that the first node U01 is not a RedCap UE.

[0398] As an embodiment, the first capability information does not indicate that the first node U01 is a RedCap UE.

[0399] As an embodiment, the first capability information indicates that the receiving bandwidth of the first node U01 is greater than the active BWP.

[0400] As an embodiment, the first capability information indicates that a receiving bandwidth of the first node U01 is sufficient to simultaneously receive the active BWP and RS resources other than the active BWP.

[0401] As an embodiment, the first capability information indicates that the first node U01 does not require interruption time to receive the multiple RS resources.

[0402] As an embodiment, the wireless link monitoring includes receiving on RS resources.

[0403] As an embodiment, the first capability information indicates a frequency band supported by the first node U01.

[0404] As an embodiment, the first capability information indicates the number of SSB indexes supported by the first node U01 for wireless link monitoring.

[0405] As an embodiment, the network can obtain the capability of the first node U01 through network access information, contracts, etc. The first node U01 actively reporting the first capability information has the advantages of more accuracy and shorter processing delay, but it is not necessary.

[0406] As an embodiment, the first node U01 receives first configuration information, and the first configuration information is configured for two RS resources for wireless link monitoring, one of the two RS resources belongs to the active BWP of the first node U01, and the other RS ​​resource does not belong to the active BWP; the first node U01 performs wireless link monitoring according to the two configured RS resources; whenever the wireless link quality on the two RS resources, such as the measurement results of the respective RSRP, is worse than a first threshold, a first type of indication is sent by layer 1 to a higher layer.

[0407] As a sub-embodiment of this embodiment, the first node U01 may not often send the first type of indication from layer 1 to a higher layer, that is, within a certain observation time, the first type of indication may not be sent, but when the channel environment is very bad, it will inevitably cause the first node U01 to send the first type of indication from layer 1 to a higher layer.

[0408] As a sub-embodiment of this embodiment, the first configuration information indicates the two RS resources respectively by indicating two SSB indexes.

[0409] As a sub-embodiment of this embodiment, the RS resource is SSB.

[0410] As a sub-embodiment of this embodiment, the wireless link monitoring includes monitoring for wireless link failure.

[0411] As a sub-embodiment of this embodiment, the first configuration information configures the first threshold.

[0412] As a sub-embodiment of this embodiment, the multiple RS resources configured by the first configuration information are all for wireless link monitoring of the cell corresponding to the second node U01 or the second node U02.

[0413] As a sub-embodiment of this embodiment, compared with configuring only one RS resource, the above method can more accurately evaluate the quality of the wireless link.

[0414] As an embodiment, the first configuration information is unicast.

[0415] As an embodiment, receiving the first configuration information includes: receiving a first signaling, the first signaling includes a first field, and the first field of the first signaling includes the first configuration information.

[0416] As a sub-embodiment of this embodiment, the first field of the first signaling is BWP-DownlinkDedicated, and the first field of the first signaling configures a BWP.

[0417] As an embodiment, the advantage of the above method is that it can determine whether to configure RS resources that do not belong to the BWP for wireless link monitoring according to different BWPs, such as the bandwidth of the BWP.

[0418] As an embodiment, the multiple RS resources include at least two RS resources on different BWPs, including: RS resources belonging to each BWP are included in the configuration information of different BWPs respectively.

[0419] As a sub-embodiment of this embodiment, the first configuration information indicates whether to use RS resources in a BWP other than an active BWP for wireless link monitoring.

[0420] As a sub-embodiment of this embodiment, the first configuration information indicates which BWPs' RS resources other than the active BWP are used to perform wireless link monitoring.

[0421] As a sub-embodiment of this embodiment, the first configuration information indicates which RS resources of which BWPs other than the active BWP are used for wireless link monitoring.

[0422] As a sub-embodiment of this embodiment, receiving the first configuration information includes: receiving a first signaling, wherein any BWP configured by the first signaling only includes RS resources belonging to the any BWP.

[0423] As a sub-embodiment of this embodiment, the first configuration information indicates a BWP identity to which at least one RS resource among the multiple RS resources belongs.

[0424] As a sub-embodiment of this embodiment, the first configuration information indicates the BWP identity to which each RS resource among the multiple RS resources belongs.

[0425] As a sub-embodiment of this embodiment, the first configuration information indicates the BWP identity to which the RS resources among the multiple RS resources that do not belong to the active BWP belong.

[0426] As a sub-embodiment of this embodiment, the advantage of the above method is that when switching the BWP, there is no need to reconfigure additional RS resources, which can save signaling overhead.

[0427] As an embodiment, optionally, the first node U01 sends first information.

[0428] As a sub-embodiment of this embodiment, the first information indicates that RS resources of different BWPs are used to perform wireless link monitoring.

[0429] As a sub-embodiment of this embodiment, the first information indicates that RS resources other than the active BWP are used to perform wireless link monitoring.

[0430] As a sub-embodiment of this embodiment, the first information indicates which BWP RS resources are used for wireless link monitoring.

[0431] As a sub-embodiment of this embodiment, the first information indicates RS resources used for wireless link monitoring.

[0432] As a sub-embodiment of this embodiment, the first information indicates the RS resource by indicating the corresponding SSB index.

[0433] As a sub-embodiment of this embodiment, the first information is UE auxiliary information.

[0434] As a sub-embodiment of this embodiment, the first information is a wireless link failure report.

[0435] As a sub-embodiment of this embodiment, the first information is information of the RRC layer.

[0436] As a sub-embodiment of this embodiment, the receiver of the first information is a network, such as the second node U02.

[0437] As a sub-embodiment of this embodiment, the benefits of sending the first information include: enabling the network to better and more comprehensively grasp the quality of the wireless link to support network optimization.

[0438] Example 6

[0439] Example 6 illustrates a schematic diagram of SSB according to an embodiment of the present application, as shown in the attached Figure 6 shown.

[0440] As an example, Figure 6 The horizontal axis in is the number of the OFDM symbol, abbreviated as symbol, such as #0, #1, #2, #3, OFDM symbol; Figure 6 The vertical axis is the subcarrier number, from #0 to #239.

[0441] As an example, Figure 6 The horizontal axis represents the time domain, and the vertical axis represents the frequency domain.

[0442] As an embodiment, the synchronization signal and PBCH block, also referred to as the SS / PBCH block or SS-Block or SSB, includes a primary synchronization signal (PSS) and a secondary synchronization signal (SSS), each occupying 1 symbol and, for example, 127 subcarriers; the PBCH occupies 3 symbols and 240 subcarriers, but some parts are reserved for the SSS; the time domain position of the SSB in a half frame is determined by the subcarrier spacing; the period of the half frame for transmitting the SSB is configured by the network; within a half frame, different SSBs can be sent in different spatial directions, that is, using different beams; multiple SSBs can be transmitted in the entire frequency domain interval; the PCI of the SSB sent at different frequency domain positions can be different, that is, the SSBs at different frequency domain positions can have different PCIs; when an SSB is associated with SIB1, the SSB is called a cell defining SSB (CD-SSB); a PCell is always associated with a CD-SSB on a frequency domain grid.

[0443] As a sub-embodiment of this embodiment, the SSB identified by the at least one SSB index is applicable to the above definition.

[0444] As a sub-embodiment of this embodiment, the SSB identified by the at least one SSB index may be a CD-SSB or may not be a CD-SSB, and may be either a CD-SSB or an NCD-SSB.

[0445] As an embodiment, the advantage of using NCD-SSB is that these NCD-SSBs do not need to be associated with SIB1 and are only used for wireless link monitoring. Because CD-SSB defines the cell, if they are all CD-SSBs, there will be too many cells, which will cause waste of resources and increase the delay of cell search and access.

[0446] As an embodiment, the reception timing of a PBCH, a primary synchronization signal (PSS) and a secondary synchronization signal (SSS) is on consecutive symbols and constitutes an SS / PBCH block; the transmission power of SSS, PBCH DM-RS and PBCH data is the same; the transmission power of SSS and PSS in an SS / PBCH block can be equal or differ by 3dB.

[0447] As an embodiment, the index of the first symbol of the half-frame including the SS / PBCH block is determined according to the subcarrier spacing of the SS / PBCH block.

[0448] As an embodiment, the definitions of PBCH, PSS and SSS may further refer to 3GPP TS38.211 protocol.

[0449] As an embodiment, when the at least one SSB index does not belong to the active BWP, the cell identity associated with the at least one SSB index is the same as the cell identity associated with the signal on the active BWP.

[0450] As a sub-embodiment of this embodiment, the benefits of the above method include: easier processing.

[0451] As an embodiment, when the at least one SSB index does not belong to the active BWP, the cell identity associated with the at least one SSB index is different from the cell identity associated with the signal on the active BWP.

[0452] As a sub-embodiment of this embodiment, the benefits of the above method include: more flexible processing.

[0453] As an embodiment, the association method between SSB and PCI is fixed and is the prior art in this field.

[0454] As an embodiment, the at least two RS resources on different BWPs are associated with the first PCI and the second PCI, respectively.

[0455] As a sub-embodiment of this embodiment, one of the first PCI and the second PCI is an additional PCI.

[0456] As a sub-embodiment of this embodiment, one of the first PCI and the second PCI is not an additional PCI.

[0457] As a sub-embodiment of this embodiment, only one of the first PCI and the second PCI is the PCI indicated in ServingCellConfigCommon.

[0458] As an embodiment, the above method has the advantage of being more flexible and configuring RS resources may not be affected by their associated PCIs.

[0459] As an embodiment, the at least two RS resources on different BWPs are associated with the same PCI.

[0460] As an embodiment, the above method has the advantage of being simple to process.

[0461] As an embodiment, the RS resource on the active BWP among the at least two RS resources on different BWPs is an NCD-SSB, and the RS resource not on the active BWP among the at least two RS resources on different BWPs is a CD-SSB.

[0462] As an embodiment, the benefit of the above method is that wireless link monitoring is performed using a CD-SSB other than the active BWP only when there is no CD-SSB on the active BWP, which can reduce power consumption, and wireless link monitoring can always be performed based on one CD-SSB; because the CD-SSB is associated with SIB1, a more accurate assessment of the SIB1 reception quality can be obtained, and after accessing the system, obtaining SIB1 is necessary and very important.

[0463] Example 7

[0464] Example 7 illustrates a schematic diagram of a BWP according to an embodiment of the present application, as shown in the attached Figure 7 shown.

[0465] As an embodiment, the UE may be configured with one or more bandwidth parts (BWP) on a given component carrier, only one of these configured BWPs being active at the same time, namely the active BWP; the active BWP defines the working bandwidth of the UE within the working bandwidth of the cell; for initial access, the UE uses the initial BWP obtained from the system information before being further configured.

[0466] As an embodiment, through bandwidth adaptation (BA), the receiving and transmitting bandwidths of a UE may not be the same as the bandwidth of the cell and may be adjustable: that is, the width of the working frequency band may be changed, and the position of the frequency domain may also be adjusted; a subset of the total bandwidth of a cell constitutes a BWP, and bandwidth adaptation is achieved by configuring a BWP for the UE and indicating which of the BWPs configured by the UE is currently active.

[0467] As an embodiment, after being configured with a BA, a UE in an RRC connected state monitors a paging channel using a common search space only on an active BWP.

[0468] As an embodiment, after being configured with BA, the UE obtains SI (system information) only on the active BWP.

[0469] As an embodiment, when the BA is configured, the first node monitors the PDCCH (physical downlink control channel) only on the active BWP, without having to monitor the PDCCH on the entire downlink frequency of the cell;

[0470] As an example, Figure 7 Three BWPs are shown, but the method proposed in this application is not limited to the number of BWPs.

[0471] As an example, Figure 7 The three BWPs shown are BWP1, BWP2 and BWP3, which occupy bandwidths of 40 MHz, 10 MHz and 20 MHz respectively and their respective subcarrier spacings. The method proposed in this application does not limit the specific width of the BWP.

[0472] As an example, Figure 7 Only one of the three BWPs shown, BWP1, BWP2 and BWP3, can be the active BWP at the same time.

[0473] As an embodiment, the multiple RS resources of the present application include at least two belonging to different BWPs, Figure 7 Applicable to the different BWPs described.

[0474] As an embodiment, the first node has only one active BWP at the same time.

[0475] As an embodiment, the network configures the active BWP of the first node.

[0476] As an embodiment, the network configures which BWP is the active BWP for the first node.

[0477] As an embodiment, upon initial access, the active BWP is the initial BWP.

[0478] As an embodiment, the bandwidth supported by the first node is wider than the active BWP.

[0479] As an embodiment, if the active BWP of the first node is Figure 7 When the at least one SSB index does not belong to the active BWP, it may belong to one of the three BWPs, for example.

[0480] As an embodiment, a UE has a BWP at any time, and the BWP when accessing the system is called the initial BWP.

[0481] As an embodiment, the at least two RS resources on different BWPs include an RS resource on an initial BWP, and the active BWP is not the initial BWP.

[0482] As a sub-embodiment of this embodiment, the above method has the advantage of being able to better grasp and ensure the performance of the initial BWP, and being able to be faster when the user needs to re-access the network, such as when RRC connection reestablishment is often required at the cell edge.

[0483] As an embodiment, the at least two RS resources on different BWPs include an RS resource on a default BWP, and the active BWP is not the default BWP.

[0484] As a sub-embodiment of this embodiment, when the radio link quality on the RS resources on the default BWP is lower than a first threshold or other configured thresholds, the first node may not switch back to the default BWP.

[0485] As a sub-embodiment of this embodiment, the benefits of the above method include: the quality of the wireless link on the default BWP can be better grasped and guaranteed, because the UE will switch back to the default BWP. If the quality of the wireless link on the default BWP is not good, returning to the default BWP may quickly cause wireless link failure, causing interruption.

[0486] As an example, Figure 7 BWP3 in is any BWP of the first node.

[0487] As an example, Figure 7 BWP3 is the active BWP of the first node.

[0488] As an example, frequency 1 is a frequency within BWP3.

[0489] As an example, frequency 1 is a frequency close to the edge of BWP3.

[0490] As an embodiment, the frequency of the RS resources belonging to the BWP3 among the multiple RS resources is frequency 1.

[0491] As an embodiment, frequency 2 is a frequency other than BWP3.

[0492] As an embodiment, frequency 2 is the frequency of BWP1.

[0493] As an embodiment, the frequency of the RS resources that do not belong to the BWP3 among the multiple RS resources is frequency 2.

[0494] As an embodiment, especially when frequency 1 is at the edge of BWP3, using RS resources on frequency 1 and RS resources on frequency 2 to perform wireless link monitoring can more accurately grasp the wireless link quality of BWP3.

[0495] As an embodiment, the different BWPs include an active BWP and an inactive BWP, and the interval in the frequency domain between the RS resources belonging to the active BWP among the at least two RS resources on different BWP and the active BWP, and the interval in the frequency domain between the RS resources belonging to the inactive BWP among the at least two RS resources on different BWP and the active BWP, are smaller than the first frequency interval.

[0496] As an embodiment, the first frequency interval is configured.

[0497] As an embodiment, the first frequency interval is implementation based.

[0498] As an embodiment, the first configuration information includes the first frequency interval.

[0499] As an embodiment, the first frequency interval is fixed by a protocol.

[0500] As an embodiment, the interval between the RS resource and the active BWP in the frequency domain is the interval between a frequency of the RS resource and the active BWP.

[0501] As a sub-embodiment of this embodiment, the one frequency is one of the lowest frequency, the highest frequency, and the center frequency of the active BWP.

[0502] As an embodiment, the interval in the frequency domain between the RS resources belonging to the active BWP among the at least two RS resources on different BWPs and the active BWP is the interval between the RS resources belonging to the active BWP among the at least two RS resources on different BWPs and the center frequency of the active BWP, and the interval in the frequency domain between the RS resources belonging to the inactive BWP among the at least two RS resources on different BWPs and the active BWP is the interval between the RS resources belonging to the inactive BWP among the at least two RS resources on different BWPs and the center frequency of the active BWP; the first frequency interval is 1 / 4 of the width of the active BWP, and a frequency interval smaller than the first frequency interval means that the RS resources belonging to the active BWP are at the edge of the active BWP, for example, at frequency 1, and the active BWP is adjacent Figure 7 BWP3 in.

[0503] As an embodiment, the first node supports receiving data on multiple BWPs simultaneously, and / or monitoring PDCCHs of multiple BWPs.

[0504] As a sub-embodiment of this embodiment, only one of the multiple BWPs is fully functional, and the other BWPs are functionally limited.

[0505] As an embodiment, in the prior art, a node can only receive data on one BWP and monitor the PDCCH of one BWP. When it is possible to simultaneously receive data from multiple BWPs or monitor the PDCCHs on multiple BWPs, it is impossible to accurately evaluate the quality of the wireless link by only using the RS resources within one BWP for wireless link monitoring. The advantages of the method proposed in the present application include better support for multiple BWPs.

[0506] As an embodiment, the active BWP includes discontinuous frequency domain resources.

[0507] As a sub-embodiment of this embodiment, the RS resource identified by the at least one SSB index that does not belong to the active BWP is located between the lowest frequency and the highest frequency of the active BWP in the frequency domain.

[0508] As a sub-embodiment of this embodiment, for example, in another BWP configuration, a BWP includes an attached Figure 7 If the frequency resources of BWP2 and BWP3 are configured, then the RS resources configured between the two spectrum resources, such as frequency 2, are used for wireless link monitoring, which is conducive to better understanding the wireless link quality of this BWP.

[0509] Example 8

[0510] Embodiment 8 illustrates a schematic diagram of the minimum time interval between consecutive first-type indications according to an embodiment of the present application, as shown in the attached figure. Figure 8 shown.

[0511] Attached Figure 8 The sending times of the first type of indications are indicated five times, and the method proposed in this application does not limit the number of times the first type of indications are sent.

[0512] Typically, the first node sends a plurality of consecutive first type indications.

[0513] As an embodiment, the method proposed in the present application does not limit the specific sending time of the first type of indication, but only limits the minimum time interval between consecutive first type of indications.

[0514] As an embodiment, the minimum time interval between the consecutive first-category indications is the minimum time interval between two adjacent first-category indications.

[0515] As an embodiment, the minimum time interval between the consecutive first-category indications is the minimum time interval between two first-category indications that are immediately adjacent to each other.

[0516] As an embodiment, the continuous first-type indications refer to other indications that do not violate the first-type indications.

[0517] As a sub-embodiment of this embodiment, for example, the first type of indication is out-of-sync, and the other indications that are not indicated by the first type are in-sync indications.

[0518] As an embodiment, requiring a minimum time interval helps to make radio link monitoring more accurate and reduce the amount of control signaling, for example, if the first type of indication triggers the sending of control signaling.

[0519] As an embodiment, the minimum time interval between the consecutive first-type indications is T Indication_interval .

[0520] As an embodiment, the minimum time interval between the consecutive first-type indications is T Indication_interval_BFD .

[0521] As an embodiment, the minimum time interval between the consecutive first-type indications is T Indication_interval_RLM .

[0522] Example 9

[0523] Embodiment 9 illustrates a schematic diagram of BWP switching according to an embodiment of the present application, as shown in the attached Fig. 9 shown.

[0524] As an example, Fig. 9 The BWP switching shown is the process of the active BWP changing from BWP1 to BWP2.

[0525] As an embodiment, the switching of the BWP is controlled by a first timer. When the first timer expires, for example, Fig. 9 If the time t1 in the BWP expires, the first node switches to the default BWP, and the default BWP takes effect at time t2, that is, the time between t1 and t2 is the intermediate state of the BWP switching.

[0526] As a sub-embodiment of this embodiment, the default BWP is attached Fig. 9 BWP2 in this application does not limit the default BWP.

[0527] As an embodiment, the first timer is started or restarted at a time earlier than time t0.

[0528] As an embodiment, the service cell of the first node configures the first timer.

[0529] As an embodiment, the starting condition of the first timer includes: access to the system.

[0530] As an embodiment, the condition for the first timer to be restarted includes: being scheduled.

[0531] As an embodiment, the first timer is an inactivity detection period of the BWP.

[0532] As an embodiment, the first timer is bwp-InactivityTimer.

[0533] As an embodiment, the switching of BWP can also be based on PDCCH or RRC signaling. For example, when a PDCCH indication is received at time t1, or RRC signaling is received, the BWP switching is started. At time t2, the target BWP, i.e., the attached BWP, is switched. Fig. 9 BWP2 in comes into effect.

[0534] As an embodiment, when the first node is in a BWP switching process, the first node uses the multiple RS resources to perform wireless link monitoring.

[0535] As a sub-embodiment of this embodiment, only when the first node is in the BWP switching process, the first node uses the multiple RS resources to perform wireless link monitoring.

[0536] As an embodiment, the BWP switching process means that the time from the expiration of the first timer is shorter than the first time threshold.

[0537] As an embodiment, the BWP switching process means that the first timer has expired and the target BWP has not yet taken effect.

[0538] As an embodiment, the BWP switching process includes the time between t0 and t1.

[0539] As an embodiment, the BWP switching process includes the time between t1 and t2.

[0540] As an embodiment, the time between t0 and t1 corresponds to the time length indicated by the first time threshold.

[0541] As an embodiment, the first time threshold is system configured.

[0542] As an embodiment, the first time threshold is implementation based.

[0543] As an embodiment, the first time threshold is fixed by the protocol.

[0544] As an embodiment, the multiple RS resources include RS resources belonging to the target BWP.

[0545] As an embodiment, the advantage of the above method is that when BWP switching has been or is about to be performed, the RS resources of the target BWP are used to monitor the wireless link, which is conducive to obtaining the wireless link quality on the target BWP as early as possible and ensuring service continuity.

[0546] Example 10

[0547] Embodiment 10 illustrates a schematic diagram of a minimum time interval between consecutive first-type indications according to an embodiment of the present application depending on the shortest period of multiple RS resources, as shown in the attached figure. Fig.10 shown.

[0548] As an embodiment, each RS resource among the multiple RS resources is repeated in the time domain.

[0549] As a sub-embodiment of this embodiment, the period of each RS resource among the multiple RS resources is a period at which each RS resource among the multiple RS resources repeats in the time domain.

[0550] As an embodiment, each of the multiple RS resources includes resources that appear repeatedly in the time domain.

[0551] As a sub-embodiment of this embodiment, the period of each RS resource among the multiple RS resources is the period of resources that appear repeatedly in the time domain and are included in each RS resource among the multiple RS resources.

[0552] As an embodiment, each of the multiple RS resources is periodic.

[0553] As an embodiment, the shortest period of the multiple RS resources is the shortest one among the periods of each RS resource in the multiple RS resources.

[0554] As an embodiment, when DRX (discontinuous reception) is not configured, the minimum time interval between consecutive first-type indications is equal to the longer one between the shortest period of the multiple RS resources and 2 ms.

[0555] As an embodiment, when DRX is not configured, the minimum time interval between consecutive first-type indications is equal to the longer one between the shortest period of the multiple RS resources and 10 ms.

[0556] As an embodiment, when DRX is configured, the minimum time interval between consecutive first-type indications is equal to the longer one between K1 times the shortest cycle of the multiple RS resources and K2 times the DRX cycle.

[0557] As a sub-embodiment of this embodiment, both K1 and K2 are fixed by protocol.

[0558] As a sub-embodiment of this embodiment, K1 is equal to 1.5.

[0559] As a sub-embodiment of this embodiment, K2 is equal to 1.5.

[0560] As an embodiment, when DRX is configured, the minimum time interval between consecutive first-type indications is equal to the longer one between K1 times the shortest cycle of the multiple RS resources, K2 times the DRX cycle, and a fixed parameter.

[0561] As a sub-embodiment of this embodiment, both K1 and K2 are fixed by protocol.

[0562] As a sub-embodiment of this embodiment, K1 is equal to 1.5.

[0563] As a sub-embodiment of this embodiment, K2 is equal to 1.5.

[0564] As a sub-embodiment of this embodiment, the fixed parameter is equal to 2ms or 10ms.

[0565] As an embodiment, the minimum time interval between consecutive first-type indications cannot be too short, otherwise the measurement result will be inaccurate, so it is very necessary to define the minimum time interval between consecutive first-type indications.

[0566] Embodiment 11

[0567] Embodiment 11 illustrates a structural block diagram of a processing device used in a first node according to an embodiment of the present application; Fig.11 As shown in the attached Fig.11 In the embodiment 11, the processing device 1100 in the first node includes a first receiver 1101 and a first transmitter 1102.

[0568] A first receiver 1101 receives first configuration information, where the first configuration information is configured for multiple RS resources for wireless link monitoring; the multiple RS resources include at least two RS resources on different BWPs;

[0569] The first receiver 1101 performs wireless link monitoring according to the multiple RS resources;

[0570] The behavior of performing wireless link monitoring includes: whenever the wireless link quality on the plurality of RS resources is worse than a first threshold, sending a first type of indication from layer 1 to a higher layer.

[0571] As an embodiment, the first configuration information includes at least two SSB indexes belonging to different BWPs, and the at least two SSB indexes belonging to different BWPs respectively identify the at least two RS resources on different BWPs.

[0572] As an embodiment, the first configuration information includes a first SSB index, and the first SSB index identifies the at least two RS resources on different BWPs.

[0573] As an embodiment, the behavior of receiving the first configuration information includes: receiving a first signaling, the first signaling includes a first field, and the first field of the first signaling includes the first configuration information;

[0574] The first field of the first signaling is BWP-DownlinkDedicated, and the first field of the first signaling configures a BWP.

[0575] As an embodiment, the first node is in a BWP switching process, and the BWP switching process means that the time from the expiration of the first timer is shorter than a first time threshold, or the first timer has expired and the target BWP has not yet taken effect.

[0576] The expiration of the first timer triggers leaving the active BWP.

[0577] As an embodiment, the different BWPs include an active BWP and an inactive BWP, and the interval in the frequency domain between the RS resources belonging to the active BWP among the at least two RS resources on different BWP and the active BWP, and the interval in the frequency domain between the RS resources belonging to the inactive BWP among the at least two RS resources on different BWP and the active BWP, are smaller than the first frequency interval.

[0578] As an embodiment, the at least two RS resources on different BWPs are associated with the first PCI and the second PCI, respectively.

[0579] As an embodiment, the RS resource on the active BWP among the at least two RS resources on different BWPs is an NCD-SSB, and the RS resource not on the active BWP among the at least two RS resources on different BWPs is a CD-SSB.

[0580] As an embodiment, the at least two RS resources on different BWPs include RS resources on an initial BWP, and the active BWP is not the initial BWP, or the at least two RS resources on different BWPs include RS resources on a default BWP, and the active BWP is not the default BWP.

[0581] As an embodiment, the minimum time interval between consecutive first-type indications depends on the shortest period of the multiple RS resources.

[0582] As an embodiment, the first node is a user equipment (UE).

[0583] As an embodiment, the first node is a terminal supporting a large delay difference.

[0584] As an embodiment, the first node is a terminal supporting NTN.

[0585] As an embodiment, the first node is an aircraft or a ship.

[0586] As an embodiment, the first node is a mobile phone or a vehicle-mounted terminal.

[0587] As an embodiment, the first node is a helmet or glasses.

[0588] As an embodiment, the first node is an Internet of Things terminal or an industrial Internet of Things terminal.

[0589] As an embodiment, the first node is a device supporting low-latency and high-reliability transmission.

[0590] As an embodiment, the first receiver 1101 includes at least one of the antenna 452, receiver 454, receiving processor 456, multi-antenna receiving processor 458, controller / processor 459, memory 460, or data source 467 in Example 4.

[0591] As an embodiment, the first transmitter 1102 includes at least one of the antenna 452, transmitter 454, transmit processor 468, multi-antenna transmit processor 457, controller / processor 459, memory 460, or data source 467 in Embodiment 4.

[0592] A person of ordinary skill in the art can understand that all or part of the steps in the above method can be completed by instructing the relevant hardware through a program, and the program can be stored in a computer-readable storage medium, such as a read-only memory, a hard disk or an optical disk. Optionally, all or part of the steps in the above embodiment can also be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiment can be implemented in the form of hardware or in the form of a software function module, and the present application is not limited to any specific form of software and hardware combination. The user equipment, terminal and UE in the present application include but are not limited to drones, communication modules on drones, remote-controlled aircraft, aircraft, small aircraft, mobile phones, tablet computers, notebooks, vehicle-mounted communication equipment, wireless sensors, Internet cards, Internet of Things terminals, RFID terminals, NB-IoT terminals, MTC (Machine Type Communication, machine type communication) terminals, eMTC (enhancedMTC, enhanced MTC) terminals, data cards, Internet cards, vehicle-mounted communication equipment, low-cost mobile phones, low-cost tablet computers, satellite communication equipment, ship communication equipment, NTN user equipment and other wireless communication equipment. The base stations or system equipment in this application include but are not limited to macrocell base stations, microcell base stations, home base stations, relay base stations, gNB (NR Node B) NR Node B, TRP (Transmitter Receiver Point), NTN base stations, satellite equipment, flight platform equipment and other wireless communication equipment.

[0593] The present invention may be implemented in other specified forms without departing from its core or essential features. Therefore, the embodiments disclosed herein should be considered as illustrative rather than restrictive in any way. The scope of the invention is determined by the appended claims rather than the preceding description, and all modifications within their equivalent meanings and regions are considered to be included therein.

Claims

1. A first node for wireless communication, wherein: include: A first receiver receives first configuration information, where the first configuration information is configured for multiple RS resources for wireless link monitoring; The multiple RS resources include at least two RS resources on different BWPs; The first receiver performs wireless link monitoring according to the multiple RS resources; The behavior of performing wireless link monitoring includes: whenever the wireless link quality on the plurality of RS resources is worse than a first threshold, sending a first type of indication from layer 1 to a higher layer.

2. The first node according to claim 1, characterized in that: The first configuration information includes at least two SSB indexes belonging to different BWPs, and the at least two SSB indexes belonging to different BWPs respectively identify the at least two RS resources on different BWPs.

3. The first node according to claim 1, characterized in that: The first configuration information includes a first SSB index, and the first SSB index identifies the at least two RS resources on different BWPs.

4. The first node according to any one of claims 1 to 3, characterized in that: The behavior of receiving the first configuration information includes: receiving a first signaling, the first signaling includes a first field, and the first field of the first signaling includes the first configuration information; The first field of the first signaling is BWP-DownlinkDedicated, and the first field of the first signaling configures a BWP.

5. The first node according to any one of claims 1 to 4, characterized in that: The first node is in a BWP switching process, where the BWP switching process means that: the time from the expiration of the first timer is shorter than the first time threshold, or the first timer has expired and the target BWP has not yet taken effect; The expiration of the first timer triggers leaving the active BWP.

6. The first node according to any one of claims 1 to 5, characterized in that: The different BWPs include an active BWP and an inactive BWP, and an interval in the frequency domain between an RS resource belonging to the active BWP among the at least two RS resources on different BWP and the active BWP, and an interval in the frequency domain between an RS resource belonging to the inactive BWP among the at least two RS resources on different BWP and the active BWP, are smaller than the first frequency interval.

7. The first node according to any one of claims 1 to 6, characterized in that: The at least two RS resources on different BWPs are associated with the first PCI and the second PCI, respectively.

8. The first node according to any one of claims 1 to 7, characterized in that: The RS resource on the active BWP among the at least two RS resources on different BWPs is an NCD-SSB, and the RS resource not on the active BWP among the at least two RS resources on different BWPs is a CD-SSB.

9. The first node according to any one of claims 1 to 8, characterized in that: The at least two RS resources on different BWPs include RS resources on an initial BWP, and an active BWP is not the initial BWP, or the at least two RS resources on different BWPs include RS resources on a default BWP, and the active BWP is not the default BWP.

10. The first node according to any one of claims 1 to 9, characterized in that: The minimum time interval between consecutive first-type indications depends on the shortest period of the plurality of RS resources.

11. A method in a first node for wireless communication, wherein: include: Receive first configuration information, where the first configuration information is configured for multiple RS resources for wireless link monitoring; The multiple RS resources include at least two RS resources on different BWPs; performing wireless link monitoring according to the plurality of RS resources; The behavior of performing wireless link monitoring includes: whenever the wireless link quality on the plurality of RS resources is worse than a first threshold, sending a first type of indication from layer 1 to a higher layer.

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