Method and apparatus for constructing beam obstruction detection reference signal

Abstract

An embodiment of the present invention provides a method and apparatus for configuring a beam failure detection reference signal, the method for configuring a beam failure detection reference signal includes: configuring a first reference signal for beam failure detection using RRC signaling; and configuring or updating the first reference signal using MAC CE signaling.

Description

[Technical field]

[0001] FIELD OF THE DISCLOSURE The present invention relates to the field of communications technology. [Background technology]

[0002] Rel-15 NR (New Radio Release 15) includes several MIMO (Multiple Input Multiple Output) features to facilitate the use of multiple antenna elements at the base station in the sub-6 GHz and above-6 GHz frequency bands. Rel-16 NR (New Radio Release 16) extends Rel-15 NR with the following mechanisms. These mechanisms are: Introducing a Type II codebook based on extended DFT (Discrete Fourier Transform) compression, Support for multi-TRP (Transmission Reception Point) transmission, especially eMBB (enhanced Mobile Broadband) and PDSCH (Physical Downlink Shared Channel); Extension of multi-beam operation, including reduction in latency and / or reduction in various reconstruction overheads, such as reduction in measurement reconstruction overhead associated with QCL (quasi-colocation); SCell (secondary cell) beam failure recovery (BFR), L1-SINR (Layer 1 Signal to Interference and Noise Ratio), A low PAPR (Peak to Average Power Ratio) reference signal, This includes ensuring full power transmission characteristics on the uplink.

[0003] Currently, NR (New Radio) is being commercialized, and from actual deployment scenarios, various aspects that require further enhancements can be identified. These aspects include:

[0004] Rel-16 (Release 16) attempts to reduce overhead and / or latency, and high speed vehicular scenarios (e.g., UEs traveling at high speed on a highway) on FR2 (Frequency Range 2) require more aggressive latency and overhead reduction for intra-cell as well as inter-cell L1 / L2 (Layer 1 / Layer 2) mobility, and further includes reducing the occurrence of beam failure events.

[0005] In Rel-16, improvements are being considered to ensure the extension of panel-specific UL (uplink, abbreviated as UL) beam selection, but there was not enough time to complete this work, which could improve uplink coverage, including mitigating the loss of UL coverage due to meeting maximum permissible exposure (MPE) rules.

[0006] Channels other than the PDSCH can benefit from multi-TRP transmission (and multi-panel reception), including inter-cell multi-TRP operation, including some new multi-TRP instances, e.g., in UL dense deployments in macrocells and / or heterogeneous network type deployment scenarios.

[0007] The use of multi-scenario SRS (Sounding Reference Signal) may or should further enhance SRS, at least for capacity and coverage.

[0008] Rel-16 supports extended Type II CSI, but some room for further extensions is felt, including the use of partial reciprocity of CSI and channel statistics such as angle and delay, designed for multi-TRP / panel NC-JT use cases, primarily targeted at FR1 FDD deployments.

[0009] Rel-17 also supports the expansion of multi-TRP deployments targeting FR1 and FR2, including:

[0010] Using multiple TRPs and / or multiple panels, defining and improving the reliability and robustness of channels other than PDSCH (i.e., physical downlink control channel (PDCCH), physical uplink shared channel (PUSCH) and physical uplink control channel (PUCCH)) with Rel-16 reliability as a baseline.

[0011] In order to ensure multi-TRP operation between cells, the related extensions to QCL / TCI (Transmission Configuration Indication) are determined and defined, based on multi-DCI (Downlink Control Information, abbreviated as DCI), multi-PDSCH reception based on the Rel-15 / 16 TCI architecture is assumed.

[0012] Evaluate and define simultaneous transmission of multiple TRPs with multi-panel reception and extend the content related to beam management, if necessary.

[0013] Extend the following to support HST-SFN (High Speed ​​Single Frequency Network) deployment scenarios: Determine and define DMRS (Demodulation Reference Signal) QCL assumption solutions, e.g., multiple QCL assumption solutions for the same DMRS port(s) targeting DL-only transmissions. Evaluate and define QCL / QCL-like relationships (including applicable types and associated requirements) between DL and UL signals by reusing the unified TCI architecture, if shown to be superior to the Rel-16 HST (Version 16 High Speed ​​Transmission) extended baseline benefits.

[0014] As can be seen, to improve channel reliability and robustness, Rel-17 supports TRP-specific beam failure detection and recovery for multi-TRP deployment scenarios.

[0015] The above description of the background art is merely for the purpose of more clearly and completely explaining the configurations of the present invention and for the understanding of those skilled in the art, and should not be construed as meaning that these configurations are well known to those skilled in the art just because they are described in the background art of the present invention. Summary of the Invention [Problem to be solved by the invention]

[0016] According to the discovery of the present inventors, currently, the reference signal of TRP-specific beam failure detection is configured using L3 (Layer 3) signaling, i.e., RRC (Radio Resource Control) message. However, after the network activates a new TCI state using L2 signaling, e.g., MAC CE (Medium Access Control Element), or L1 signaling, e.g., DCI, the network needs to send a new RRC message to update the reference signal of TRP-specific beam failure detection, which may delay the beam failure detection and trigger the beam failure recovery procedure erroneously.

[0017] For example, at time t0, the network activates a new TCI state using L2 or L1 signaling, but the terminal still listens to the original reference signal for beam failure detection until it receives a new signal configuration at time t1, during which the maximum number of configured beam failure instances may be reached, triggering a beam failure recovery procedure. If it is a special cell, a random access procedure may be triggered, resulting in a service interruption.

[0018] In view of the above problems, an embodiment of the present invention provides a method and apparatus for configuring a beam failure detection reference signal, which supports configuring / updating a reference signal for beam failure detection using RRC signaling and MAC CE. [Means for solving the problem]

[0019] In one aspect of an embodiment of the present invention, there is provided a beam failure detection reference signal configuration device, the device including a first configuration unit that configures a first reference signal for beam failure detection using RRC signaling, and a second configuration unit that configures or updates the first reference signal using MAC CE signaling.

[0020] Another aspect of an embodiment of the present invention provides a beam failure detection reference signal configuration device, the device including: a first configuration unit that configures a reference signal for TRP-specific beam failure detection using RRC signaling; and a second configuration unit that configures a reference signal for failure detection using the RRC signaling.

[0021] One of the advantageous effects of the embodiment of the present invention is as follows: According to the embodiment of the present invention, it is possible to support using RRC signaling and MAC CE to configure / update a reference signal for beam failure detection. Compared with the conventional mechanism, after the TCI state of PDCCH reception changes, the present invention can perform beam failure detection more quickly using the corresponding reference signal, so as to avoid service interruption caused by falsely triggering beam failure recovery procedures, and can configure / update the reference signal for beam failure detection more flexibly, so as to reduce signaling overhead and save air interface resources.

[0022] As shown in the following description and drawings, specific embodiments of the present invention are disclosed in detail to show how the principles of the present invention can be employed. However, the scope of the embodiments of the present invention is not limited to these. The embodiments of the present invention include modifications, alterations, and equivalents within the spirit and scope of the appended claims.

[0023] Features described and / or illustrated in one embodiment may be used in the same or similar manner in one or more other embodiments and may be combined with or substituted for features in the other embodiments.

[0024] It should be noted that in this text, the term "including / having" means the presence of a feature, element, step or component, and does not exclude the presence or addition of one or more other features, elements, steps or components. [Brief description of the drawings]

[0025] Elements and features depicted in one drawing and one embodiment of the present invention may be combined with elements and features shown in one or more drawings or embodiments, and in the drawings, like reference numerals may designate corresponding elements in multiple drawings and may designate corresponding elements used in more than one embodiment. [Figure 1a] 1a to 1c are schematic diagrams of detecting beam failure or triggering beam failure recovery of a serving cell. [Figure 1b] 1a to 1c are schematic diagrams of detecting beam failure or triggering beam failure recovery of a serving cell. [Figure 1c] 1a to 1c are schematic diagrams of detecting beam failure or triggering beam failure recovery of a serving cell. [Diagram 2] FIG. 1 is a schematic diagram of an example of a multi-TRP operation scenario. [Diagram 3] FIG. 1 is a schematic diagram of an example of Beam Fault Detection (BFD) / Beam Fault Recovery (BFR) of a TRP. [Figure 4]1 is a schematic diagram of an example of a method for constructing a beam obstruction detection reference signal according to an embodiment of the present invention. [Diagram 5] 5 and 6 are schematic diagrams of two examples of format 1 of the first MAC CE. [Figure 6] 5 and 6 are schematic diagrams of two examples of format 1 of the first MAC CE. [Figure 7] 7 and 8 are schematic diagrams of two examples of format 2 of the first MAC CE. [Figure 8] 7 and 8 are schematic diagrams of two examples of format 2 of the first MAC CE. [Figure 9] 13 is a schematic diagram of another example of a method for constructing a beam obstruction detection reference signal according to an embodiment of the present invention. [Figure 10] 1 is a schematic diagram of an example of a configuration device for a beam obstruction detection reference signal according to an embodiment of the present invention. [Figure 11] 13 is a schematic diagram of another example of a beam obstruction detection reference signal forming device according to an embodiment of the present invention. [Figure 12] FIG. 2 is a schematic diagram of a terminal device according to an embodiment of the present invention. [Figure 13] 1 is a schematic diagram of a configuration of a network device according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0026] The above and other features of the present invention will become apparent from the following description. In the specification and drawings, specific embodiments of the present invention are disclosed in detail, and some of the embodiments in which the principles of the present invention can be adopted are shown. However, the present invention is not limited to the described embodiments. The present invention includes all modifications, variations, and equivalents within the scope of the appended claims. Each embodiment of the present invention will be described below with reference to the drawings. These embodiments are merely illustrative and do not limit the present invention.

[0027] In embodiments of the present invention, the terms "first", "second", etc. are used in the title to distinguish different elements, but do not represent the spatial arrangement or temporal order of these elements, and these elements are not limited to these terms. The term "and / or" includes any and all combinations of one or more of the terms listed in the associated list. The terms "including", "comprising", "having", etc. refer to the presence of listed features, elements, elements or components, but do not exclude the presence or addition of one or more other features, elements, elements or components.

[0028] In the embodiments of the present invention, the singular forms "a", "the", etc., include the plural forms and should be understood broadly as "one kind" or "a class", and are not limited to "one". In addition, the term "said" should be understood to include both the singular and the plural forms, unless the context clearly indicates otherwise. In addition, the term "described in" should be understood to mean "described at least in part", and the term "based on" should be understood to mean "based at least in part on", unless the context clearly indicates otherwise.

[0029] In an embodiment of the present invention, the term "communication network" or "wireless communication network" may refer to a network conforming to any communication standard, such as, for example, Long Term Evolution (LTE), Advanced Long Term Evolution (LTE-A, LTE-Advanced), Wideband Code Division Multiple Access (WCDMA), High-Speed ​​Packet Access (HSPA), etc.

[0030] Additionally, communications between devices in a communication system may occur according to any stage of communication protocols, including, but not limited to, 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G, and 5G, New Radio (NR), and / or other currently known or future developed communication protocols.

[0031] In the embodiment of the present invention, the term "network device" refers to a device in a communication system, for example, allowing a terminal device to access the communication system and providing a service to the terminal device. The network device may include, but is not limited to, a base station (BS), an access point (AP), a transmission reception point (TRP), a broadcast transmitter, a mobility management entity (MME), a gateway, a server, a radio network controller (RNC), a base station controller (BSC), etc.

[0032] The base station may include, but is not limited to, a Node B (NodeB or NB), an evolved Node B (eNodeB or eNB), and a 5G base station (gNB), etc., as well as a Remote Radio Head (RRH), a Remote Radio Unit (RRU), a relay or a low power node (e.g., femto, pico, etc.), an Integrated access and backhaul (IAB) node or an IAB-DU or an IAB-donor. Also, the term "base station" may include some or all of the functions thereof, and each base station may provide communication coverage for a particular geographic area. The term "cell" may refer to a base station and / or its coverage area depending on the context in which the term is used. The terms "cell" and "base station" may be interchangeable unless confusion arises.

[0033] In the embodiment of the present invention, the term "User Equipment" (UE) or "Terminal Equipment" (TE) refers to an apparatus that accesses a communication network and receives a network service via, for example, a network device. The terminal apparatus may be fixed or mobile, and may be called a mobile station (MS), a terminal, a subscriber station (SS), an access terminal (AT), an IAB-MT, a station, etc.

[0034] The terminal device may include, but is not limited to, a cellular phone, a personal digital assistant (PDA), a wireless modulation / demodulation device, a wireless communication device, a handheld device, a machine type communication device, a laptop computer, a cordless phone, a smartphone, a smart watch, a digital camera, and the like.

[0035] Also, for example, in a scenario such as the Internet of Things (IoT), the user equipment may be a monitoring or measuring device or equipment, and may include, but is not limited to, a Machine Type Communication (MTC) terminal, an in-vehicle communication terminal, a Device to Device (D2D) terminal, a Machine to Machine (M2M) terminal, and the like.

[0036] Furthermore, the term "network side" or "network device side" refers to the side of a network, which may be a base station or may include one or more of the network devices mentioned above. The term "user side" or "terminal side" or "terminal device side" refers to the side of a user or terminal, which may be a UE or may include one or more of the terminal devices mentioned above. In this specification, unless otherwise specified, "device" may refer to a network device or may refer to a terminal device.

[0037] In the following description, "failure" may be replaced with "recovery is required" and "if..." may be replaced with "when..." or "when..." as long as no confusion occurs. Also, in the following description, lower layer means the physical layer, RF chain, etc.

[0038] Regarding the configuration of the reference signal for beam obstruction detection, the current standard provides the following configuration for beam obstruction detection.

[0039] Below is the content of the radio link monitoring configuration (RadioLinkMonitoringConfig).

[0040] [Table 1] The following is the content of the information element (IE) of the RadioLinkMonitoringConfig.

[0041] [Table 2] The following is a description of the fields of the RadioLinkMonitoringConfig:

[0042] [Table 3] The following is the field description of the radio link monitoring reference signal (RadioLinkMonitoringRS) in the above configuration.

[0043] [Table 4] For beam failure detection procedures, multiple beams and beam management are supported in NR. Here, the MAC (medium access control) entity can configure a beam failure recovery procedure for each serving cell by RRC. This procedure is used to indicate a new SSB (synchronization signal block) or CSI-RS (channel state information reference signal) to the serving gNB when a beam failure is detected in the serving SSB(s) / CSI-RS(s). Beam failure is detected by calculating the number of beam failure instances indicated by the lower layers to the MAC entity.

[0044] 1a to 1c are schematic diagrams of detecting beam failure or triggering beam failure recovery of a serving cell.

[0045] As shown in Fig. 1a, the Beam Failure Detection (BFD) procedure uses the UE variable BFI_COUNTER. This variable is a counter of beam failure instance indications, with an initial setting of 0 and one per serving cell. For each serving cell for which beam failure detection is configured, the MAC entity performs the following operations:

[0046] If a beam failure indicator is received from the lower layer, Start or restart the beamFailureDetectionTimer, Add 1 to BFI_COUNTER, If BFI_COUNTER is greater than or equal to beamFailureInstanceMaxCount, If the serving cell is a secondary cell (SCell), trigger one BFR of this serving cell; If not, it initiates a random access procedure with this special cell (SpCell).

[0047] As shown in Figures 1b and 1c, the MAC entity further performs the following processes:

[0048] If the beamFailureDetectionTimer times out, or If higher layers reconfigure the beamFailureDetectionTimer, beamFailureInstanceMaxCount, or any reference signal for beam failure detection for this serving cell, Set BFI_COUNTER to 0.

[0049] This procedure applies to Rel-15 and Rel-16 special and secondary cells.

[0050] According to the findings of the present inventors, Rel-15 and Rel-16 support cell level beam failure detection, Rel-17 multi-TRP operation supports beam failure detection for individual BFD-RS (Beam Failure Detection Reference Signal) sets per-TRP, and supports simultaneous configuration of cell-specific BFR and TRP-specific BFR on different CCs (Component Carriers), but does not support simultaneous configuration of TRP-specific BFR and Rel-15 / 16 BFR (i.e., BeamFailureRecoveryConfig / BeamFailureRecoverySCellConfig-r16) on a CC.

[0051] In addition, for triggering TRP-specific beam failure recovery, the RRC is configured with parameters such as the following:

[0052] beamFailureInstanceMaxCount of beam failure detection for each BFD-RS set of a serving cell with two BFD-RS sets configured beamFailureDetectionTimer for beam failure detection for each BFD-RS set of a serving cell with two BFD-RS sets configured The following UE variables are used in the beam obstruction detection process:

[0053] · BFI_COUNTER (for each BFD-RS set of a serving cell with two BFD-RS sets configured): A counter of beam failure instance indications, initially set to 0.

[0054] For each serving cell for which beam failure detection is configured, the MAC entity performs the following operations:

[0055] 1> If two BFD-RS sets are configured for this serving cell, the MAC entity performs the following process for each BFD-RS set of this serving cell:

[0056] 2> When a BEAM failure instance indication for the BFD-RS set is received from the lower layer, 3>Start or restart the beamFailureDetectionTimer, 3> Add 1 to the BFI_COUNTER of this BFD-RS set, 3> If BFI_COUNTER is greater than or equal to beamFailureInstanceMaxCount, 4> Trigger BFR for this BFD-RS set in this serving cell, 2> If BFR has been triggered for both BFD-RS sets of this special cell and has not been completed successfully, 3> Initiate a random access procedure with this special cell, 2> If this serving cell is a special cell and the random access procedure initiated for beam failure recovery of the two BFD-RS sets of this special cell is completed successfully, 3> Set the BFI_COUNTER of each BFD-RS set of special cells to 0, 3> This beam failure recovery procedure is considered to have been completed successfully.

[0057] 2> The beamFailureDetectionTimer for this BFD-RS set times out, or 2> If higher layers reconfigure the beamFailureDetectionTimer, beamFailureInstanceMaxCount, or any reference signal for beam failure detection for this BFD-RS set of this serving cell, 3> Set BFI_COUNTER for this BFD-RS set to 0.

[0058] 2> if a PDCCH addressed by the C-RNTI is received indicating an uplink grant for transmitting a new transmission of a HARQ procedure of an Enhanced BFR MAC CE or a Truncated Enhanced BFR MAC CE containing beam failure recovery information of this BFD-RS set of this serving cell; 3> Set BFI_COUNTER for this BFD-RS set to 0, 3> Consider this beam failure recovery procedure completed successfully and cancel all triggered BFRs for this BFD-RS set of this serving cell.

[0059] 2> If this serving cell is a secondary cell and this secondary cell is deactivated, 3> Set BFI_COUNTER for each BFD-RS set in the secondary cell to 0, 3> Consider this beam failure recovery procedure completed successfully and cancel all triggered BFRs in all BFD-RS sets of this serving cell.

[0060] In addition, regarding the configuration of the reference signal for TRP-specific beam obstruction detection, in order to support multi-TRP beam obstruction detection, the current standard provisionally introduces the following for the configuration of the reference signal for TRP-specific beam obstruction detection:

[0061] Below is the content of the radio link monitoring configuration (RadioLinkMonitoringConfig).

[0062] [Table 5] The following is the content of the IE of the RadioLinkMonitoringConfig.

[0063] [Table 6] The following is the content of the field description of the RadioLinkMonitoringConfig.

[0064] [Table 7] The following is the content of the field description of the radio link monitoring reference signal (RadioLinkMonitoringRS) in the above configuration.

[0065] [Table 8] The following is the content of the RadioLinkMonitoringRS ID (RadioLinkMonitoringRS-Id) in the above configuration.

[0066] [Table 9] The following is the content of the IE of the RadioLinkMonitoringRS-Id.

[0067] [Table 10] The following describes an embodiment scenario of the present invention with reference to an example, but the present invention is not limited thereto.

[0068] FIG. 2 is a schematic diagram of an example of a multi-TRP operation scenario. As shown in FIG. 2, a TRP is part of a gNB and is used to receive signals from or transmit signals to a terminal UE. In multi-TRP (mTRP) operation, one serving cell may schedule a UE from two TRPs to provide better PDSCH coverage, reliability and / or data rate. For multi-TRP, there are two different operation modes: single DCI and multi-DCI. The two modes are provided by the RRC layer, with the control of uplink and downlink operations being done by the physical layer and MAC. In single DCI mode, the UE is scheduled by two TRPs via the same DCI. In multi-DCI mode, the UE is scheduled via separate DCIs for each TRP.

[0069] FIG. 3 is a schematic diagram of an example of beam failure detection (BFD) / beam failure recovery (BFR) of TRP. As shown in FIG. 3, a gNB provides services to a terminal (UE) via TRP-1 and TRP-2. The UE performs beam failure detection for each TRP. Here, link-1 between TRP-1 and the UE is working properly; that is, the UE does not detect beam failure on TRP1 or trigger beam failure recovery on TRP1. Meanwhile, link-2 between TRP-2 and the UE is blocked; that is, the UE detects beam failure on TRP-2 or triggers beam failure recovery on TRP-2. The two TRPs may belong to the same cell or different cells.

[0070] The following describes examples of the present invention with reference to the drawings and specific embodiments.

[0071] <Example 1> An embodiment of the present invention provides a method for configuring a beam fault detection reference signal, which may be applied to a network device or a terminal device.

[0072] 4 is a schematic diagram of an example of a method for constructing a beam obstruction detection reference signal according to an embodiment of the present invention. As shown in FIG. 4, the method includes the following steps:

[0073] Step 401: Configure a reference signal (referred to as a first reference signal) for beam failure detection using RRC signaling.

[0074] Step 402: Configure or update the first reference signal using MAC CE signaling.

[0075] It should be noted that the above FIG. 4 only shows a schematic diagram of an embodiment of the present invention, but the present invention is not limited thereto. For example, the execution order between various steps may be appropriately adjusted, some other steps may be added, and some steps may be removed. Those skilled in the art may make appropriate modifications based on the above content, and are not limited to the description of the above FIG. 4.

[0076] In this embodiment, a reference signal for beam failure detection is configured using RRC signaling, and the reference signal is configured or updated using MAC CE signaling, thereby realizing the configuration / updating of a reference signal for beam failure detection by RRC signaling and MAC CE, thereby avoiding service interruptions and improving network performance.

[0077] In some embodiments, the first reference signal includes a reference signal for TRP-specific beam failure detection (referred to as a second reference signal), i.e., the reference signal for TRP-specific beam failure detection may be configured using RRC signaling.

[0078] In some embodiments, the second reference signal is included in two beam obstruction detection reference signal sets, the two beam obstruction detection reference signal sets having respective set IDs (identifiers).

[0079] In the above embodiment, configuring a reference signal (first reference signal) for beam failure detection using RRC signaling may include at least one of the following configurations.

[0080] The RRC signaling includes a first beam failure detection reference signal set and a second beam failure detection reference signal set, i.e., the reference signal sets for the two beam failure detection are explicitly configured via the RRC signaling, and the second beam failure detection reference signal set is mandatory to be present when the first beam failure detection reference signal set is present.

[0081] The first beam obstruction detection reference signal set and the second beam obstruction detection reference signal set each include a set ID, the set ID is compulsorily present, and the value of the set ID is 1 or 2.

[0082] The first beam failure detection reference signal set and the second beam failure detection reference signal set each include a set of second reference signals, the second reference signals including a second reference signal ID and a detection resource, where the second reference signals may be additional and / or modified second reference signals, and the second reference signal ID may be an integer from 0 to n-1, where n is a maximum number of failure detection resources of the second reference signals in each set, e.g., 64. The detection resource may be, for example, an SSB index or an NZP CSI-RS resource ID, etc.

[0083] The first beam obstruction detection reference signal set and the second beam obstruction detection reference signal set each include a set of released second reference signals ID.

[0084] In some other embodiments, the second reference signal is included in a beam obstruction detection reference signal set, the beam obstruction detection reference signal set having a set ID.

[0085] In the above embodiment, configuring the first reference signal for beam failure detection using RRC signaling may include at least one of the following configurations.

[0086] The RRC signaling includes a third beam failure detection reference signal set, i.e., one beam failure detection reference signal set is explicitly configured via the RRC signaling, the third beam failure detection reference signal set includes a set ID, the set ID is mandatory to exist, and the value of the set ID is 1 or 2.

[0087] The third beam failure detection reference signal set includes a set of second reference signals, the second reference signals including a second reference signal ID and a detection resource, where the second reference signals may be additional and / or modified second reference signals, and the second reference signal ID may be an integer from 0 to n-1, where n is a maximum number of failure detection resources of the second reference signals in each set, e.g., 64. The detection resource may be, for example, an SSB index or an NZP CSI-RS resource ID, etc.

[0088] The third beam obstruction detection reference signal set includes a set of released second reference signals ID.

[0089] In the above embodiment, the set ID of the third beam failure detection reference signal set is associated with a coresetpool (referred to as the first coresetpool), or the third beam failure detection reference signal set corresponds to the first coresetpool. For a multi-TRP operation multi-DCI mode, i.e., different TRPs are scheduled via different DCIs. Different DCIs are associated with coresets (control resource sets) in different coresetpools. For example, the DCI of TRP-1 is associated with a coreset in coresetpool 1, and the DCI of TRP-2 is associated with a coreset in coresetpool 2. That is, the associated coresetpool may be used to identify the TRP.

[0090] In some embodiments, a second reference signal in another beam failure detection reference signal set different from the third beam failure detection reference signal set may be determined by a TCI status received by a lower layer via a PDCCH, and the other beam failure detection reference signal set also corresponds to one coresetpool (control resource set pool).

[0091] In some other embodiments, the second reference signal is included in a beam obstruction detection reference signal set, and the beam obstruction detection reference signal set does not have a set ID.

[0092] In some embodiments, configuring the first reference signal for beam failure detection using RRC signaling may include at least one of the following configurations.

[0093] The RRC signaling includes a fourth beam failure detection reference signal set, and the fourth beam failure detection reference signal set does not have a set ID.

[0094] The fourth beam failure detection reference signal set includes a set of second reference signals, the second reference signals including a second reference signal ID, coresetpool information associated with the second reference signals, and detection resources, where the second reference signal ID is an integer from 0 to 2n-1, and n is a maximum number of failure detection resources for the second reference signals in each set, e.g., 64. The detection resources may be, e.g., an SSB index or an NZP CSI-RS resource ID.

[0095] The fourth beam obstruction detection reference signal set includes a set of released second reference signals ID.

[0096] In the above embodiment, the information of the associated coresetpool is, for example, a coresetpool index. Based on this field, the terminal device can determine the beam obstruction detection reference signal set in which the second reference signal is located. For example, a coresetpool index of 1 indicates that the second reference signal belongs to the second beam obstruction detection reference signal set, and an unassociated or associated coresetpool index of 0 means that the second reference signal belongs to the first beam obstruction detection reference signal set.

[0097] The above embodiments are illustratively described as using only RRC signaling to configure the first reference signal for beam failure detection, and the present invention is not limited thereto, and appropriate modifications may be made based on the above embodiments. For example, each of the above embodiments may be used alone, or one or more of the above embodiments may be used in combination.

[0098] In an embodiment of the present invention, RRC signaling may be used to configure a reference signal for failure detection (referred to as a third reference signal).

[0099] In the above embodiment, the RRC signaling may include an indication field (first indication field), which is used to indicate the purpose of the reference signal (third reference signal) for failure detection, thereby indicating whether the purpose for which the terminal device listens to the associated reference signal is cell detection or beam failure detection.

[0100] In the above embodiment, when the RRC signaling constitutes a reference signal (second reference signal) for the above TRP-specific beam failure detection, the value of the first indication field is configured to be rlf (radio link failure), for example, the value of the first indication field is configured to always be rlf, or the value of the first indication field is configured to be only rlf.

[0101] In an embodiment of the present invention, RRC signaling may be used to configure, indicate or associate information of the TCI status of PDCCH reception for the first reference signal or the second reference signal.

[0102] In the above embodiment, the TCI state of PDCCH reception may be configured via RRC signaling.

[0103] In the above embodiment, the information of the TCI state may be a TCI state ID. Preferably, the information of the TCI state may further include cell information and / or BWP (fractional bandwidth) information. The cell information is, for example, a serving cell index or a PCI (physical cell identifier) ​​index, and the BWP information is, for example, a BWP ID.

[0104] In the above embodiment, it is described as an example that the first reference signal includes a reference signal (second reference signal) for TRP-specific beam failure detection. In some embodiments, the first reference signal may not include the reference signal (second reference signal) for the TRP-specific beam failure detection. The lower layer may determine the reference signal (second reference signal) for TRP-specific beam failure detection through the TCI state of PDCCH reception, and determine the coresetpool associated with the second reference signal. For example, it may determine that the second reference signal is associated with one coresetpool or two coresetpools.

[0105] In the embodiment of the present invention, the RRC signaling includes an RRC message, an information element (IE) in the RRC message, a field in the RRC message, etc. The following describes an embodiment of the above RRC signaling with reference to a specific example.

[0106] In the above embodiment, the RRC signaling supports at least one of the following three possibilities:

[0107] Possibility 1: The BFD-RS (Beam Fault Detection Reference Signal) is included in two BFD-RS sets, each set having its own set ID.

[0108] Possibility 2: The BFD-RS is contained in a single BFD-RS set, and this set has a set ID.

[0109] Possibility 3: The BFD-RS is contained in one BFD-RS set, and this set has no set-ID.

[0110] In some embodiments, the RRC signaling supports the above three possibilities. That is, an RRC message may include one or two BFD-RS sets. Each set may or may not have its own set ID. In the standard, the following supplementary or improved explanations may be made regarding the radio link monitoring configuration and the contents of the radio link monitoring reference signal. Here, the underlined content is a point where this embodiment differs from the existing standard, e.g., the bold and underlined part is not included. Also, for example, the bold and underlined content is included as part of an additional extension.

[0111] Below is the content of the radio link monitoring configuration (RadioLinkMonitoringConfig).

[0112] [Table 11] The following is the content of the IE of the RadioLinkMonitoringConfig.

[0113] [Table 12] The following is a description of the fields of the RadioLinkMonitoringConfig:

[0114] [Table 13] The following is the field description of the radio link monitoring reference signal (RadioLinkMonitoringRS) in the above configuration.

[0115] [Table 14] The following is the content of the ID (RadioLinkMonitoringRS-Id) of the radio link detection reference signal (RadioLinkMonitoringRS) in the above configuration.

[0116] [Table 15] The following is the content of the IE of the RadioLinkMonitoringRS-Id.

[0117] [Table 16] The following is the content of the newly added radio link monitoring reference signal ID for R-17 (RadioLinkMonitoringRS-Id-r17).

[0118] [Table 17] Below is the IE content of RadioLinkMonitoringRS-Id-r17.

[0119] [Table 18] According to the above embodiment, the RRC signaling can support more possibilities of BFD-RS configuration, for example, it may include one or two BFD-RS sets, each set may or may not have its own set ID, which makes the RRC signaling flexible in design and forward compatible.

[0120] In some other embodiments, the RRC signaling supports the above possibility 1. The RRC message may include two BFD-RS sets, each with its own set ID. In the standard, the following supplementary or improved explanations may be made regarding the radio link monitoring configuration and the contents of the radio link monitoring reference signal. Here, the underlined content is a point where this embodiment differs from the existing standard, e.g., the bold and underlined part is not included. Also, for example, the bold and underlined content is included as part of an additional extension.

[0121] Below is the content of the radio link monitoring configuration (RadioLinkMonitoringConfig).

[0122] [Table 19] The following is the content of the IE of the RadioLinkMonitoringConfig.

[0123] [Table 20] The following is a description of the fields of the RadioLinkMonitoringConfig:

[0124] [Table 21] The following is the field description of the radio link monitoring reference signal (RadioLinkMonitoringRS) in the above configuration.

[0125] [Table 22] Below is an interpretation of the newly added existence conditions for fields.

[0126] [Table 23] The following is the content of the ID (RadioLinkMonitoringRS-Id) of the radio link monitoring reference signal (RadioLinkMonitoringRS) in the above settings.

[0127] [Table 24] The following is the content of the IE of the RadioLinkMonitoringRS-Id.

[0128] [Table 25] The following is the content of the newly added radio link monitoring reference signal ID for R-17 (RadioLinkMonitoringRS-Id-r17).

[0129] [Table 26] Below is the IE content of RadioLinkMonitoringRS-Id-r17.

[0130] [Table 27] According to the above embodiment, the RRC signaling can support the configuration of an explicit BFD-RS set, that is, it includes two BFD-RS sets, each set has a respective set ID, so that the BFD-RS is configured only by an explicit BFD-RS set, and the terminal can directly determine the BFD-RS set through the configuration of the RRC signaling, and does not need to infer by the terminal itself, which simplifies the implementation of the terminal and reduces the cost.

[0131] In some other embodiments, the RRC signaling supports the above possibility 1 and the above possibility 2. The RRC message may include one or two BFD-RS sets. Each set has a respective set ID. In the standard, the following supplementary or improved explanations may be made regarding the radio link monitoring configuration and the contents of the radio link monitoring reference signal. Here, the underlined content is a point where this embodiment differs from the existing standard, e.g., the bold and underlined part is not included. Also, for example, the bold and underlined content is included as part of an additional extension.

[0132] Below is the content of the radio link monitoring configuration (RadioLinkMonitoringConfig).

[0133] [Table 28] The following is the content of the IE of the RadioLinkMonitoringConfig.

[0134] [Table 29] The following is the content of the field description of the RadioLinkMonitoringConfig.

[0135] [Table 30] The following is the field description of the radio link monitoring reference signal (RadioLinkMonitoringRS) in the above configuration.

[0136] [Table 31] The following is the content of the RadioLinkMonitoringRS ID (RadioLinkMonitoringRS-Id) in the above configuration.

[0137] [Table 32] The contents of the IE for RadioLinkMonitoringRS-Id are as follows:

[0138] [Table 33] The following is the content of the newly added radio link monitoring reference signal ID for R-17 (RadioLinkMonitoringRS-Id-r17).

[0139] [Table 34] Below is the IE content of RadioLinkMonitoringRS-Id-r17.

[0140] [Table 35] According to the above embodiment, the RRC signaling can support explicit configuration of the BFD-RS set, for example, it may include one or two BFD-RS sets, each set has a respective set ID, etc. Also, the delta configuration of the BFD-RS set can be supported. This provides flexibility in design of the RRC signaling, has forward compatibility, and can partially simplify the design of the terminal and reduce costs.

[0141] In an embodiment of the present invention, after configuring a reference signal (first reference signal) for the above-mentioned beam failure detection using RRC signaling, the first reference signal may be configured or updated using MAC CE signaling.

[0142] In the above embodiment, the MAC CE signaling may be a MAC CE for a network device to indicate a TCI state. The TCI state is a TCI state of PDCCH reception of a coreset (control resource set) of a serving cell or a set of serving cells. Alternatively, the MAC CE signaling may be a MAC CE (referred to as a first MAC CE) for configuring or updating a first reference signal for the beam failure detection. Compared with the MAC CE used by a network device to indicate the TCI state, the first MAC CE is a new MAC CE.

[0143] In the above embodiment, the first MAC CE: Information of the beam obstruction detection reference signal set, e.g., beam obstruction detection reference signal set ID (1 bit); Information of the reference signal for beam obstruction detection in the beam obstruction detection reference signal set, e.g., beam obstruction detection reference signal index (6 bits); Serving cell information, and It may include at least one of the information of the serving cell list.

[0144] Preferably, the first MAC CE may include one or more QCL assumptions of the first reference signal for the beam failure detection, such as an SSB index or an NZP CSI-RS resource ID.

[0145] In the above embodiment, the serving cell information includes, for example, a serving cell index or a serving cell bitmap, where the serving cell may be a serving cell configured for the terminal device, and / or a serving cell for which two beam failure detection reference signal sets are configured, and / or a serving cell in the same common updated cell list, etc.

[0146] In the above embodiment, the list information of the serving cell may be, for example, information of a common update cell list, or information of a cell list sharing a TCI state, etc. The common update cell list is a list of serving cells whose TCI relationship can be updated simultaneously using one MAC CE, for example, simultaneousTCI-UpdateList1-r16, simultaneousTCI-UpdateList1-r16, simultaneousU-TCI-UpdateList1-r17, simultaneousU-TCI-UpdateList2-r17, simultaneousU-TCI-UpdateList3-r17, and simultaneousU-TCI-UpdateList4-r17. The information of the common update cell list is information indicating the names of these lists, for example, the information of list 1 is 1, the information of list 2 is 2, or information indicating the order of appearance of the lists, for example, the information of the list that appears first is 1, the information of the list that appears second is 2, and the same applies to other cases. The TCI state sharing cell list is a list of serving cells configured with the same TCI state.

[0147] In the above embodiment, the length of the first MAC CE is variable, and the MAC subheader may include an L field indicating the length of the first MAC CE and an F field for indicating the L field.

[0148] In the above embodiment, the MAC subheader of the first MAC CE may include LCID and eLCID, where LCID is 34, i.e., the extended logical channel ID field (1-byte eLCID field), and eLCID uses one of the reserved LCID values ​​of the 1-byte eLCID of UL-SCH, such as 239, 238, or other values.

[0149] In the above embodiment, when the reference signal for beam failure detection (first reference signal) is configured using RRC signaling, when the reference signal for beam failure detection (first reference signal) is associated with one TCI status information of PDCCH reception, or when the RRC signaling associates one reference signal for beam failure detection (first reference signal) for each TCI status of PDCCH reception, the above MAC CE signaling may be the MAC CE used by the network device to indicate the TCI status. On the other hand, when the reference signal for beam failure detection (first reference signal) is configured using RRC signaling, when the reference signal for beam failure detection (first reference signal) is not associated with one TCI status information of PDCCH reception, or when the reference signal for beam failure detection (first reference signal) is not associated with the TCI status of PDCCH reception, the above MAC CE signaling may be the above first MAC CE.

[0150] The following describes an embodiment of MAC CE signaling according to an embodiment of the present invention with reference to a specific example.

[0151] In some embodiments, the format of the above first MAC CE has the following two formats:

[0152] Format 1: QCL assumption without BFD-RS Format 2: QCL assumptions including BFD-RS Fig. 5 is a schematic diagram of an example of a first MAC CE format 1, showing a case where a 1-byte Ci field is included, and Fig. 6 is a schematic diagram of another example of a first MAC CE format 1, showing a case where a 4-byte Ci field is included.

[0153] As shown in FIG. 5 and FIG. 6, Format 1 of the first MAC CE includes at least the following fields:

[0154] Ci field: Indicates whether or not the BFD-RS information of the serving cell whose serving cell index is i is included. Ci=0 indicates that the BFD-RS information of the serving cell whose serving cell index is i is not included.

[0155] Set id field: Indicates the BFD-RS set to which the BFD-RS information contained in this byte belongs or the corresponding coresetpool.

[0156] P field: Indicates whether the next byte is BFD-RS information having the same serving cell and the same set as the BFD-RS information of this byte. For example, P=0 indicates that the next byte is not BFD-RS information having the same serving cell and the same set as the BFD-RS information of this byte (in this case, the next byte uses the byte including the set id+P field). P=1 indicates that the next byte is BFD-RS information having the same serving cell and the same set as the BFD-RS information of this byte (in this case, the next byte uses the byte R+R).

[0157] RS ID field: This field indicates the BFD-RS index and is 6 bits long.

[0158] R field: A reserved field.

[0159] In the above embodiment, preferably, Format 1 of the first MAC CE may further include the following fields (not shown in FIG. 5 and FIG. 6):

[0160] Ni field: Indicates the number of BFD-RS sets that include a serving cell with serving cell index i / a serving cell whose i-th Ci field value is 1.

[0161] Fig. 7 is a schematic diagram of an example of Format 2 of the first MAC CE, showing a case where a Ci field of 1 byte is included. Fig. 8 is a schematic diagram of another example of Format 2 of the first MAC CE, showing a case where a Ci field of 4 bytes is included.

[0162] As shown in FIG. 7 and FIG. 8, compared with the first MAC CE Format 1, the first MAC CE Format 2 includes at least the following fields:

[0163] QCL assumption field: Indicates the QCL assumption of the BFD-RS contained in the previous byte.

[0164] T field: Indicates whether the next byte is other QCL assumption information of the BFD-RS corresponding to the QCL assumption of this byte. For example, T=0 indicates that the next byte is not other QCL assumption information of the BFD-RS corresponding to the QCL assumption of this byte (in this case, the next byte uses a byte containing other BFD-RS information). T=1 indicates that the next byte is other QCL assumption information of the BFD-RS corresponding to the QCL assumption of this byte (in this case, the next byte uses the R+R byte).

[0165] In the above embodiment, preferably, Format 2 of the first MAC CE may further include the following fields (not shown in FIG. 7 and FIG. 8):

[0166] Ni field: indicates the number of BFD-RS sets that include a serving cell with serving cell index i / a serving cell with a value of 1 in the i-th Ci field.

[0167] The above embodiments are illustratively described as using only MAC CE signaling to configure or update the first reference signal for beam failure detection, and the present invention is not limited thereto, and appropriate modifications may be made based on the above embodiments. For example, each of the above embodiments may be used alone, or one or more of the above embodiments may be used in combination.

[0168] The methods of each of the above embodiments may be implemented, for example, by a network device, for example, the network device may send the above RRC signaling and MAC CE signaling to perform the above configuration, or may be implemented, for example, by a terminal device, for example, the terminal device may receive the above RRC signaling and MAC CE signaling to perform the above configuration.

[0169] In an embodiment of the present invention, preferably, the MAC entity of the terminal device may set a counter of beam failure instances (BFI_COUNTER) of the beam failure detection reference signal set of the serving cell to 0 when the MAC CE signaling is associated with the beam failure detection reference signal set of the serving cell.

[0170] For example, when a terminal device is receiving MAC CE signaling that can update or reconfigure any reference signal for beam failure detection in the beam failure detection reference signal set of the serving cell, the MAC entity sets a counter of beam failure instances in the beam failure detection reference signal set to 0.

[0171] As another example, when a higher layer reconfigures beamFailureDetectionTimer, beamFailureInstanceMaxCount, or any reference signal for beam failure detection in the beam failure detection reference signal set of the serving cell, or when the MAC CE signaling updates or reconfigures a reference signal for beam failure detection in the beam failure detection reference signal set of the serving cell, the MAC entity sets the counter of beam failure instances in the beam failure detection reference signal set to 0.

[0172] As another example, if a higher layer reconfigures the beamFailureDetectionTimer or beamFailureInstanceMaxCount of a beam failure detection reference signal set of a serving cell, or any reference signal in the beam failure detection reference signal set of the serving cell is reconfigured or updated, the MAC entity sets the counter of beam failure instances in the beam failure detection reference signal set to 0.

[0173] In the above embodiment, the serving cell is configured with two beam failure detection reference signal sets (referred to as a first beam failure detection reference signal set and a second beam failure detection reference signal set).

[0174] For example, RRC signaling configures a reference signal for TRP-specific beam failure detection for the serving cell, and the reference signal is included in two beam failure detection reference signal sets, each of which has a set ID.

[0175] As another example, RRC signaling configures a reference signal for TRP-specific beam failure detection for the serving cell, the reference signal is included in one beam failure detection reference signal set, the beam failure detection reference signal set has a set ID, and the lower layer determines a beam failure detection reference signal in another beam failure detection reference signal set via the TCI status of PDCCH reception.

[0176] As another example, RRC signaling configures a reference signal for TRP-specific beam failure detection for the serving cell, the reference signal is included in one beam failure detection reference signal set, the beam failure detection reference signal set does not have a set ID, and the terminal device determines that the reference signal is associated with two coresetpools.

[0177] As another example, RRC signaling does not configure a reference signal for TRP-specific beam failure detection for the serving cell, and a lower layer determines a reference signal for TRP-specific beam failure detection via the TCI of PDCCH reception, and determines that the reference signal is associated with two coresetpools.

[0178] In the above embodiment, the first beam obstruction detection reference signal set is, for example, one of the following situations:

[0179] Situation 1: A BFD-RS set with BFD-RS set ID 1 Case 2: The BFD-RS set with BFD-RS set ID 1 (if configured) or another BFD-RS set determined by lower layers via the TCI state of PDCCH reception (if a BFD-RS set with BFD-RS set ID 2 is configured). Situation 3: A BFD-RS set consisting of all reference signals with no associated coresetpool or with an associated coresetpool with index 0. Situation 4: A BFD-RS set consisting of reference signals to which a coresetpool determined by a lower layer via the TCI state of PDCCH reception is not associated or to which a coresetpool with index 0 is associated. In some embodiments, the second set of beam obstruction detection reference signals is, for example, one of the following conditions:

[0180] Situation 1: A BFD-RS set with BFD-RS set ID 2 Case 2: The BFD-RS set with BFD-RS set ID 2 (if configured) or another BFD-RS set determined by lower layers via the TCI state of PDCCH reception (if a BFD-RS set with BFD-RS set ID 1 is configured). Case 3: A BFD-RS set consisting of (all) reference signals associated with the coresetpool with index 1. Case 4: A BFD-RS set consisting of (all) reference signals to which the coresetpool with index 1 is associated, as determined by lower layers via the TCI status of PDCCH reception. The above embodiments are illustrative of two beam interference detection reference signal sets configured for a single serving cell, and the present invention is not limited thereto, and appropriate modifications may be made based on the above embodiments. For example, each of the above embodiments may be used alone, or one or more of the above embodiments may be used in combination.

[0181] 9 is a schematic diagram of another example of a method for constructing a beam obstruction detection reference signal according to an embodiment of the present invention. As shown in FIG. 9, the method includes the following steps:

[0182] Step 901: Configure a reference signal for TRP-specific beam failure detection using RRC signaling.

[0183] Step 902: Configure a reference signal for failure detection using the RRC signaling.

[0184] It should be noted that the above FIG. 9 only shows a schematic diagram of an embodiment of the present invention, but the present invention is not limited thereto. For example, the execution order between various steps may be appropriately adjusted, some other steps may be added, and some steps may be removed. Those skilled in the art may make appropriate modifications based on the above content, and are not limited to the description of the above FIG. 9.

[0185] According to this embodiment, by using RRC signaling to configure a reference signal for TRP-specific beam failure detection, and by using RRC signaling to configure a reference signal for failure detection, compared with the prior art, a TRP-specific beam failure detection reference signal can be configured only for a cell for which a cell-specific beam failure detection reference signal is not configured, so that erroneous configuration and unnecessary triggering of failure detection or failure recovery, and the resulting interruption of services can be avoided, and signaling overhead can be reduced and air interface resources can be saved.

[0186] In the above embodiment, the RRC signaling may include an indication field (referred to as a first indication field), which is used to indicate the purpose of the reference signal (third reference signal) for the failure detection, thereby indicating whether the purpose for which the terminal device listens to the associated reference signal is cell detection or beam failure detection.

[0187] In the above embodiment, the RRC signaling constitutes a reference signal for the TRP-specific beam failure detection, so the value of the first indication field is configured to be rlf (radio link failure). For example, the value of the first indication field is configured to always be rlf, or the value of the first indication field is configured to be only rlf.

[0188] The RRC signaling has already been described, so a detailed description thereof will be omitted here.

[0189] According to the method of the embodiment of the present invention, service interruption can be avoided and network performance can be improved.

[0190] <Example 2> An embodiment of the present invention provides a beam fault detection reference signal configuration device. The device may be, for example, a terminal device, or one or more elements or components configured in the terminal device. Alternatively, the device may be, for example, a network device, or one or more elements or components configured in the network device. The device according to the embodiment of the present invention corresponds to the method according to the embodiment, and the description of the same contents as those in the first embodiment will be omitted here.

[0191] 10 is a schematic diagram of an example of a beam obstruction detection reference signal forming device according to an embodiment of the present invention. As shown in FIG. 10, a beam obstruction detection reference signal forming device 1000 includes the following units:

[0192] The first configuration unit 1001 configures a first reference signal for beam failure detection using RRC signaling.

[0193] A second configuration unit 1002 configures or updates the first reference signal using MAC CE signaling.

[0194] In some embodiments, the first reference signal includes a second reference signal for TRP-specific beam obstruction detection.

[0195] In some embodiments, the second reference signal is included in two beam obstruction detection reference signal sets, the two beam obstruction detection reference signal sets having respective set IDs.

[0196] In the above embodiment, configuring a first reference signal for beam failure detection using RRC signaling includes: The RRC includes a first beam obstruction detection reference signal set and a second beam obstruction detection reference signal set, and when the first beam obstruction detection reference signal set exists, the second beam obstruction detection reference signal set exists forcibly; The first beam obstruction detection reference signal set and the second beam obstruction detection reference signal set each include a set ID, the set ID is mandatory to exist, and the value of the set ID is 1 or 2; The first beam obstruction detection reference signal set and the second beam obstruction detection reference signal set each include a set of second reference signals, and the second reference signals include a second reference signal ID and a detection resource; The first beam obstruction detection reference signal set and the second beam obstruction detection reference signal set each include a set of released second reference signals ID.

[0197] In some other embodiments, the second reference signal is included in a beam obstruction detection reference signal set, the beam obstruction detection reference signal set having a set ID.

[0198] In the above embodiment, configuring a first reference signal for beam failure detection using RRC signaling includes: The RRC signaling includes a third beam failure detection reference signal set, the third beam failure detection reference signal set includes a set ID, the set ID is mandatory, and the value of the set ID is 1 or 2; the third beam obstruction detection reference signal set includes a set of second reference signals, the second reference signals including a second reference signal ID and a detection resource; The third beam obstruction detection reference signal set includes a set of released second reference signals ID.

[0199] In the above embodiment, the set ID is associated with the first coresetpool, or the third beam obstruction detection reference signal set corresponds to the first coresetpool.

[0200] In the above embodiment, the second reference signal in another beam failure detection reference signal set different from the third beam failure detection reference signal set is determined by a transmission configuration indication state received by a lower layer via a PDCCH.

[0201] In the above embodiment, the second reference signal is included in one beam obstruction detection reference signal set, and the one beam obstruction detection reference signal set does not have a set ID.

[0202] In the above embodiment, configuring a first reference signal for beam failure detection using RRC signaling includes: the RRC signaling includes a fourth set of beam failure detection reference signals; the fourth beam obstruction detection reference signal set includes a set of second reference signals, the second reference signals including a second reference signal ID, coresetpool information associated with the second reference signals, and detection resources; The fourth beam obstruction detection reference signal set includes the set of released second reference signals ID.

[0203] In each of the above embodiments, the second reference signal ID is an integer from 0 to 2n-1, where n is the maximum number of fault detection resources in the beam fault detection reference signal set.

[0204] In some embodiments, as shown in FIG. 10, the beam obstruction detection reference signal configuring apparatus 1000 further includes the following units:

[0205] A third configuration unit 1003 configures a third reference signal for failure detection using RRC signaling.

[0206] In the above embodiment, the RRC signaling includes a first indication field, and the first indication field is used to indicate the purpose of the third reference signal. Wherein, when the RRC signaling configures a reference signal for TRP-specific beam failure detection, the value of the first indication field is configured to be rlf (radio link failure). For example, the value of the above first indication field is always configured as rlf, or the value of the above first indication field is simply configured as rlf.

[0207] In some embodiments, as shown in FIG. 10, the beam obstruction detection reference signal configuring apparatus 1000 further includes the following units:

[0208] The fourth configuration unit 1004 configures, indicates, or associates, for the first reference signal or the second reference signal, information of the TCI state of PDCCH reception, using RRC signaling.

[0209] In the above embodiment, the TCI state of PDCCH reception may be configured via RRC signaling.

[0210] In the above embodiment, the information of the TCI state includes a TCI state ID, and the information of the TCI state may further include cell information and / or BWP information.

[0211] In some embodiments, the first reference signal does not include a second reference signal for TRP-specific beam failure detection, and the lower layer determines the second reference signal via a TCI state of PDCCH reception and determines that the second reference signal is associated with a coresetpool. Alternatively, if the first reference signal does not include a second reference signal for TRP-specific beam failure detection, the lower layer determines the second reference signal via a TCI state of PDCCH reception and determines that the second reference signal is associated with a coresetpool.

[0212] In some embodiments, the MAC CE signaling may be a MAC CE for a network device to indicate a TCI state, the TCI state being a TCI state of PDCCH reception of a serving cell or a coreset of serving cells, or the MAC CE signaling may be a first MAC CE for configuring or updating the first reference signal.

[0213] In the above embodiment, the first MAC CE: information on a set of beam obstruction detection reference signals; Information on a reference signal for beam fault detection of a beam fault detection reference signal set; Serving cell information, and It may include at least one of the information of the serving cell list.

[0214] In the above embodiment, the first MAC CE may further include one or more QCL assumptions of the first reference signal for the beam failure detection.

[0215] In the above embodiment, the serving cell information includes a serving cell index or a serving cell bitmap.

[0216] The serving cell may be, for example, A serving cell configured for the terminal device, or A serving cell for which two beam interference detection reference signal sets have been configured, or They are serving cells in the same common updated cell list.

[0217] In the above embodiment, the length of the first MAC CE is variable, and the MAC subheader of the first MAC CE includes an L field for indicating the length of the first MAC CE and an F field for indicating the L field.

[0218] In the above embodiment, the MAC subheader of the first MAC CE may include an LCID and an eLCID.

[0219] In some embodiments, when the beam obstruction detection reference signal configuring device 1000 is configured in a terminal device, as shown in FIG. 10, the beam obstruction detection reference signal configuring device 1000 may further include the following units.

[0220] The setting unit 1005 causes the MAC entity of the terminal device to set a counter of beam failure instances of the beam failure detection reference signal set of the serving cell to 0 when the MAC CE signaling is associated with the beam failure detection reference signal set of the serving cell.

[0221] For example, the setting unit 1005 causes the MAC entity to set a counter of beam failure instances in the beam failure detection reference signal set to 0 if the MAC CE signaling can update or reconfigure any reference signal for beam failure detection in the beam failure detection reference signal set of the serving cell.

[0222] Also, for example, the setting unit 1005 causes the MAC entity to set the counter of beam failure instances in the beam failure detection reference signal set to 0 when an upper layer reconfigures beamFailureDetectionTimer, beamFailureInstanceMaxCount, or any reference signal for beam failure detection in the beam failure detection reference signal set of the serving cell, or when the MAC CE signaling updates or reconfigures a reference signal for beam failure detection in the beam failure detection reference signal set of the serving cell.

[0223] Also, for example, the setting unit 1005 causes the MAC entity to set the counter of beam failure instances in the beam failure detection reference signal set to 0 when an upper layer reconfigures the beamFailureDetectionTimer or beamFailureInstanceMaxCount of the beam failure detection reference signal set of the serving cell, or when any reference signal in the beam failure detection reference signal set of the serving cell is reconfigured or updated.

[0224] In the above embodiment, the serving cell is configured with two beam failure detection reference signal sets.

[0225] For example, RRC signaling configures a reference signal for TRP-specific beam failure detection, which is included in two beam failure detection reference signal sets, each of which has a set ID.

[0226] In another example, RRC signaling configures a reference signal for TRP-specific beam failure detection, the reference signal is included in one beam failure detection reference signal set, the beam failure detection reference signal set has a set ID, and the lower layer determines a beam failure detection reference signal in another beam failure detection reference signal set via the TCI state of PDCCH reception.

[0227] In another example, RRC signaling configures a reference signal for TRP-specific beam failure detection, the reference signal is included in one beam failure detection reference signal set, the beam failure detection reference signal set does not have a set ID, and the terminal device determines that the reference signal is associated with two coresetpools.

[0228] In another example, RRC signaling does not configure a reference signal for TRP-specific beam failure detection, and a lower layer determines a reference signal for TRP-specific beam failure detection via the TCI of PDCCH reception, and determines that the reference signal is associated with two coresetpools.

[0229] 11 is a schematic diagram of another example of a beam obstruction detection reference signal forming device according to an embodiment of the present invention. As shown in FIG. 11, a beam obstruction detection reference signal forming device 1100 includes the following units:

[0230] The first configuration unit 1101 configures a reference signal for TRP-specific beam failure detection using RRC signaling.

[0231] A second configuration unit 1102 configures a reference signal for failure detection using the RRC signaling.

[0232] In some embodiments, the RRC signaling includes a first indication field, and the first indication field is used to indicate the purpose of the reference signal for the failure detection. Here, when the first configuration unit 1101 uses the RRC signaling to configure the reference signal for TRP-specific beam failure detection, the value of the first indication field is configured to be rlf (radio link failure). For example, the value of the first indication field is always configured as rlf, or the value of the first indication field is simply configured as rlf.

[0233] The above-mentioned embodiments are merely illustrative of the present invention, and the present invention is not limited thereto, and appropriate modifications may be made based on the above-mentioned embodiments. For example, each of the above-mentioned embodiments may be used alone, or one or more of the above-mentioned embodiments may be used in combination.

[0234] In addition, only the components or modules related to the present invention are described above, but the present invention is not limited thereto. The beam obstruction detection reference signal configuration devices 1000-1100 may further include other components or modules. For specific contents of these components or modules, reference may be made to related art. In addition, the above various components or modules may be implemented by hardware devices such as a processor, a memory, a transmitter, and a receiver, and the present invention is not limited thereto.

[0235] According to the apparatus of the embodiment of the present invention, service interruptions can be avoided and network performance can be improved.

[0236] <Example 3> An embodiment of the present invention further provides a communication system including a network device and a terminal device.

[0237] In some embodiments, the terminal device and / or the network device includes the device described in Example 2 and is configured to execute the method described in Example 1. Since the method is described in detail in Example 1, the contents thereof are incorporated herein by reference, and the description thereof will be omitted.

[0238] An embodiment of the present invention further provides a terminal device, which may be, for example, a UE, but the present invention is not limited thereto and may be other terminal devices.

[0239] Fig. 12 is a schematic diagram of a terminal device according to an embodiment of the present invention. As shown in Fig. 12, the terminal device 1200 may include a processor 1201 and a memory 1202, where the memory 1202 stores data and programs and is connected to the processor 1201. It should be noted that this figure is exemplary, and other types of structures may be used to supplement or replace this structure to realize communication functions or other functions.

[0240] In some embodiments, the function of the device of the second embodiment may be integrated into the processor 1201. Here, the processor 1201 may be configured to execute a program to realize the method described in the first embodiment, the contents of which are incorporated herein by reference, and the description thereof is omitted here.

[0241] In some other embodiments, the device of the second embodiment may be configured separately from the processor 1201. For example, the device of the second embodiment may be configured as a chip connected to the processor 1201, and the functions of the device of the second embodiment are realized under the control of the processor 1201.

[0242] As shown in Fig. 12, the terminal device 1200 may further include a communication module 1203, an input unit 1204, a display 1205, a power supply 1206, and the like. Here, the functions of the above units are similar to those of the prior art, and the description thereof will be omitted here. Note that the terminal device 1200 does not need to include all the units shown in Fig. 12. In addition, the terminal device 1200 may further include units not shown in Fig. 12, and may refer to the prior art.

[0243] An embodiment of the present invention further provides a network device, which may be, for example, a base station, but the present invention is not limited thereto and may be other network devices.

[0244] Fig. 13 is a schematic diagram of a network device according to an embodiment of the present invention. As shown in Fig. 13, the network device 1300 may include a processor 1301 and a memory 1302, and the memory 1302 is connected to the processor 1301. The memory 1302 may store various data, and may further store an information processing program and execute the program under the control of the processor 1301.

[0245] In some embodiments, the function of the device of Example 2 may be integrated into the processor 1301. Here, the processor 1301 may be configured to execute a program to realize the method described in Example 1. The contents of the program are incorporated herein by reference, and the description thereof is omitted here.

[0246] In some other embodiments, the device of the second embodiment may be configured separately from the processor 1301. For example, the device of the second embodiment may be configured as a chip connected to the processor 1301, and the functions of the device of the second embodiment are realized under the control of the processor 1301.

[0247] Also, as shown in Fig. 13, the network device 1300 may further include a transceiver 1303 and an antenna 1304. The functions of the above members are similar to those of the prior art, and the description thereof will be omitted here. It is not necessary for the network device 1300 to include all the units shown in Fig. 13. Also, the network device 1300 may further include units not shown in Fig. 13, and may refer to the prior art.

[0248] In an embodiment of the present invention, there is further provided a computer-readable program, which, when executed in a terminal device or a network device, causes the terminal device or the network device to perform the method described in embodiment 1.

[0249] An embodiment of the present invention further provides a storage medium having a computer-readable program stored thereon, the program, when executed, causing a terminal device or a network device to perform the method described in embodiment 1.

[0250] The above-mentioned apparatus and method of the present invention may be realized by hardware or by a combination of hardware and software.The present invention relates to a computer readable program which, when executed by a logic unit, causes the logic unit to realize the above-mentioned apparatus or components, or to realize the above-mentioned various methods or steps.The present invention relates to a storage medium for storing the above-mentioned program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, etc.

[0251] Each processing method in each device described with reference to the embodiments of the present invention may be implemented by hardware, a software module executed by a processor, or a combination of both. For example, one or more of the functional block diagrams shown in the drawings, or one or more combinations of the functional block diagrams, may correspond to each software module in the flow of a computer program, or each hardware module. These software modules may correspond to each step shown in the drawings. These hardware modules may be realized by implementing these software modules in hardware, for example, using a field programmable gate array (FPGA).

[0252] The software module may be located in a RAM memory, a flash memory, a ROM memory, an EPROM memory, an EEPROM memory, a register, a hard disk, a mobile hard disk, a CD-ROM, or any other form of storage medium known to those skilled in the art. The storage medium may be connected to the processor so that the processor reads information from the storage medium or writes information to the storage medium, or the storage medium may be a component of the processor. The processor and the storage medium may be located in an ASIC. The software module may be stored in the memory of the mobile terminal, or in a memory card inserted in the mobile terminal. For example, if the device (e.g., a mobile terminal) uses a MEGA-SIM card or a large capacity flash memory device with a relatively large capacity, the software module may be stored in the MEGA-SIM card or the large capacity flash memory device.

[0253] One or more of the functional blocks and / or one or more combinations of functional blocks in the functional block diagrams illustrated in the drawings may be implemented with a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, or any suitable combination thereof to perform the functions described herein. One or more of the functional blocks and / or one or more combinations of functional blocks in the functional block diagrams illustrated in the drawings may be implemented with, for example, a combination of computing devices, such as a combination of a DSP and a microprocessor, a combination of multiple microprocessors, one or more microprocessors in combination with a DSP communication, or any other configuration.

[0254] Although the present invention has been described above with reference to specific embodiments, the above description is merely illustrative and does not limit the scope of protection of the present invention. Various modifications and changes may be made to the present invention without departing from the spirit and principles of the present invention, and these modifications and changes are also within the scope of the present invention.

[0255] Furthermore, with respect to the embodiments including the above examples, the following supplementary notes are further disclosed. (Appendix 1) A method for constructing a beam obstruction detection reference signal, comprising the steps of: configuring a first reference signal for beam failure detection using RRC signaling; and configuring or updating the first reference signal using MAC CE signaling. (Appendix 2) 2. The method of claim 1, wherein the first reference signal includes a second reference signal for TRP-specific beam obstruction detection. (Appendix 3) 3. The method of claim 2, wherein the second reference signal is included in two beam obstruction detection reference signal sets, the two beam obstruction detection reference signal sets having respective set IDs. (Appendix 4) Configuring a first reference signal for beam failure detection using the RRC signaling includes: The RRC signaling includes a first beam failure detection reference signal set and a second beam failure detection reference signal set, and when the first beam failure detection reference signal set is present, the second beam failure detection reference signal set is forced to be present; The first beam obstruction detection reference signal set and the second beam obstruction detection reference signal set each include a set ID, the set ID is compulsorily present, and the value of the set ID is 1 or 2; The first beam obstruction detection reference signal set and the second beam obstruction detection reference signal set each include the second set of reference signals, and the second reference signals include a second reference signal ID and a detection resource; The method of claim 2 or 3, wherein the first beam obstruction detection reference signal set and the second beam obstruction detection reference signal set each include a set of released second reference signal IDs. (Appendix 5) 3. The method of claim 2, wherein the second reference signal is included in a beam obstruction detection reference signal set, the beam obstruction detection reference signal set having a set ID. (Appendix 6) Configuring a first reference signal for beam failure detection using the RRC signaling includes: The RRC signaling includes a third beam failure detection reference signal set, the third beam failure detection reference signal set includes a set ID, the set ID is mandatory, and the value of the set ID is 1 or 2; the third beam failure detection reference signal set includes the second set of reference signals, the second reference signals including a second reference signal ID and a detection resource; 6. The method of claim 2 or 5, wherein the third beam obstruction detection reference signal set includes a set of released second reference signal IDs. (Appendix 7) 7. The method of claim 6, wherein the set ID is associated with a first coresetpool, or the third beam obstruction detection reference signal set corresponds to a first coresetpool. (Appendix 8) The method described in Supplementary Note 6, wherein the second reference signal in another beam failure detection reference signal set different from the third beam failure detection reference signal set is determined by a transmission configuration indication state received by a lower layer via a PDCCH. (Appendix 9) 3. The method of claim 2, wherein the second reference signal is included in one beam obstruction detection reference signal set, and the one beam obstruction detection reference signal set does not have a set ID. (Appendix 10) Configuring a first reference signal for beam failure detection using the RRC signaling includes: the RRC signaling includes a fourth set of beam failure detection reference signals; the fourth beam obstruction detection reference signal set includes the set of second reference signals, the second reference signals including a second reference signal ID, coresetpool information associated with the second reference signals, and detection resources; 10. The method of claim 2 or 9, wherein the fourth beam obstruction detection reference signal set includes the released set of the second reference signal IDs. (Appendix 11) 11. The method of claim 4, 6 or 10, wherein the second reference signal ID is an integer from 0 to n-1, where n is the maximum number of fault detection resources in the beam fault detection reference signal set. (Appendix 12) 12. The method of any of claims 1 to 11, further comprising configuring a third reference signal for failure detection using the RRC signaling. (Appendix 13) the RRC signaling includes a first indication field, the first indication field being used to indicate a purpose of the third reference signal; The method of claim 12, wherein if the RRC signaling constitutes a reference signal for TRP-specific beam failure detection, the value of the first indication field is configured to be rlf (radio link failure). (Appendix 14) 14. The method of claim 2, further comprising: configuring, indicating or associating information of a TCI status of PDCCH reception for the first reference signal or the second reference signal using the RRC signaling. (Appendix 15) 15. The method of claim 14, wherein the TCI state of the PDCCH reception is configured via the RRC signaling. (Appendix 16) 16. The method of claim 14, wherein the TCI status information includes a TCI status ID. (Appendix 17) The method of claim 16, wherein the TCI status information includes cell information and / or BWP information. (Appendix 18) The method of claim 1, wherein the first reference signal does not include a second reference signal for TRP-specific beam failure detection, and a lower layer determines the second reference signal via a TCI state of PDCCH reception and determines that the second reference signal is associated with a coresetpool. (Appendix 19) The MAC CE signaling includes: A MAC CE for a network device to indicate a TCI state, the TCI state being a TCI state of a PDCCH reception of a serving cell or a coreset of a set of serving cells; or 19. The method of any of claims 1 to 18, wherein the first MAC CE is a first MAC CE for configuring or updating the first reference signal. (Appendix 20) The first MAC CE: information on a set of beam obstruction detection reference signals; Information on a reference signal for beam fault detection of a beam fault detection reference signal set; Serving cell information, and The method of claim 19, including at least one of the information of a serving cell list. (Appendix 21) The first MAC CE: 21. The method of claim 20, further comprising one or more QCL assumptions of a first reference signal for the beam fault detection. (Appendix 22) The method of claim 20 or 21, wherein the information of the serving cell includes an index of the serving cell or a bitmap of the serving cell. (Appendix 23) The serving cell is a serving cell configured for the terminal device; A serving cell for which two beam interference detection reference signal sets are configured; 23. The method of any of claims 19 to 22, wherein the serving cell is at least one of the serving cells in the same common update cell list. (Appendix 24) 24. The method of any of claims 19 to 23, wherein a length of the first MAC CE is variable, and a MAC subheader of the first MAC CE includes an L field for indicating a length of the first MAC CE and an F field for indicating the L field. (Appendix 25) 25. The method of claim 24, wherein a MAC subheader of the first MAC CE includes an LCID and an eLCID. (Appendix 26) A method as described in any of Supplementary Notes 1 to 25, comprising a step in which, when the MAC CE signaling is associated with a beam failure detection reference signal set of a serving cell, the MAC entity of the terminal device sets a counter of beam failure instances of the beam failure detection reference signal set of the serving cell to 0. (Appendix 27) The method of claim 26, wherein if the MAC CE signaling can update or reconfigure any reference signal for beam failure detection in the beam failure detection reference signal set of the serving cell, the MAC entity sets a counter of beam failure instances in the beam failure detection reference signal set to 0. (Appendix 28) The method of claim 26, wherein when a higher layer reconfigures beamFailureDetectionTimer, beamFailureInstanceMaxCount, or any reference signal for beam failure detection in the beam failure detection reference signal set of the serving cell, or when the MAC CE signaling updates or reconfigures a reference signal for beam failure detection in the beam failure detection reference signal set of the serving cell, the MAC entity sets the counter of beam failure instances in the beam failure detection reference signal set to 0. (Appendix 29) The method of claim 26, wherein when a higher layer reconfigures beamFailureDetectionTimer or beamFailureInstanceMaxCount of a beam failure detection reference signal set of a serving cell, or when any reference signal in the beam failure detection reference signal set of the serving cell is reconfigured or updated, the MAC entity sets the counter of beam failure instances of the beam failure detection reference signal set to 0. (Appendix 30) 30. The method of any of claims 26 to 29, wherein the serving cell is configured with two beam failure detection reference signal sets. (Appendix 31) The two beam obstruction detection reference signal sets are configured, The RRC signaling configures a reference signal for TRP-specific beam failure detection, the reference signal being included in two beam failure detection reference signal sets, each beam failure detection reference signal set having a set ID; The RRC signaling configures a reference signal for TRP-specific beam failure detection, the reference signal is included in one beam failure detection reference signal set, the beam failure detection reference signal set has a set ID, and a lower layer determines a beam failure detection reference signal in another beam failure detection reference signal set through a TCI state of PDCCH reception; The RRC signaling configures a reference signal for TRP-specific beam failure detection, the reference signal is included in one beam failure detection reference signal set, the beam failure detection reference signal set does not have a set ID, and the terminal device determines that the reference signal is associated with two coresetpools; The method according to claim 23 or 30, wherein the RRC signaling does not configure a reference signal for TRP-specific beam failure detection, and a lower layer determines a reference signal for TRP-specific beam failure detection via a TCI of PDCCH reception, and determines that the reference signal is associated with two coresetpools. (Appendix 32) A method for constructing a beam obstruction detection reference signal, comprising the steps of: configuring a reference signal for TRP-specific beam failure detection using RRC signaling; and configuring a reference signal for failure detection using the RRC signaling. (Appendix 33) The RRC signaling includes a first indication field, the first indication field being used to indicate a purpose of a reference signal for the failure detection; The method of claim 32, wherein if the RRC signaling constitutes a reference signal for TRP-specific beam failure detection, the value of the first indication field is configured to be rlf (radio link failure). (Appendix 34) A terminal device comprising: a memory in which a computer program is stored; and a processor, the processor being configured to execute the computer program to implement a method according to any one of claims 1 to 33. (Appendix 35) A network device comprising: a memory having a computer program stored therein; and a processor, the processor being configured to execute the computer program to implement a method according to any one of appendices 1 to 25 and 31 to 33. (Appendix 36) A communication system comprising: a network device according to claim 35; and a terminal device according to claim 34.

Claims

1. A beam obstruction detection reference signal configuration device, comprising: a first configuration unit for configuring a first reference signal for beam failure detection using radio resource control signaling; and a second configuration unit configured or updated said first reference signal using media access control control element signaling.

2. The apparatus of claim 1 , wherein the first reference signal includes a second reference signal for transmission / reception point-specific beam obstruction detection.

3. The first component is The radio resource control signaling includes a first beam failure detection reference signal set and a second beam failure detection reference signal set, and when the first beam failure detection reference signal set is present, the second beam failure detection reference signal set is forced to be present; The first beam obstruction detection reference signal set and the second beam obstruction detection reference signal set each include a set identifier, the set identifier is mandatory to be present, and the value of the set identifier is 1 or 2; the first beam obstruction detection reference signal set and the second beam obstruction detection reference signal set each include the second set of reference signals, the second reference signals including second reference signal identifiers and detection resources; The apparatus of claim 2 , further comprising: performing a configuration such that the first beam obstruction detection reference signal set and the second beam obstruction detection reference signal set each include the released set of second reference signal identifiers.

4. The first component is The radio resource control signaling includes a third beam failure detection reference signal set, the third beam failure detection reference signal set includes a set identifier, the set identifier is mandatory to be present, and the value of the set identifier is 1 or 2; the third beam failure detection reference signal set includes the second set of reference signals, the second reference signals including a second reference signal identifier and a detection resource; The apparatus of claim 2 , further comprising: performing a configuration such that the third beam obstruction detection reference signal set includes the released set of the second reference signal identifiers.

5. The apparatus of claim 4, wherein the second reference signal in another beam failure detection reference signal set different from the third beam failure detection reference signal set is determined by a transmission configuration indication state received by a lower layer via a physical downlink control channel.

6. The first component is the radio resource control signaling includes a fourth set of beam failure detection reference signals; the fourth beam failure detection reference signal set includes the set of second reference signals, the second reference signals including a second reference signal identifier, control resource set pool information associated with the second reference signal, and a detection resource; The apparatus of claim 2 , further comprising: performing a configuration such that the fourth beam obstruction detection reference signal set includes the released set of the second reference signal identifiers.

7. The apparatus of claim 1 , further comprising: a third configuration unit configured to configure a third reference signal for failure detection using the radio resource control signaling.

8. the radio resource control signaling includes a first indication field, the first indication field being used to indicate a purpose of the third reference signal; The apparatus of claim 7, wherein the value of the first indication field is configured to be a radio link failure if the radio resource control signaling comprises a reference signal for transmission / reception point-specific beam failure detection.

9. 3. The apparatus of claim 2, further comprising: a fourth configuration unit configured, configured to configure, indicate, or associate information of a transmission configuration indication state received via a physical downlink control channel for the first reference signal or the second reference signal using the radio resource control signaling.

10. The apparatus of claim 9 , wherein the transmission configuration indication state information includes a transmission configuration indication state identifier.

11. 2. The apparatus of claim 1, wherein the first reference signal does not include a second reference signal for transmission / reception point-specific beam obstruction detection, and a lower layer determines the second reference signal via a transmission configuration indication state received via a physical downlink control channel, and determines that the second reference signal is associated with a control resource set pool.

12. The medium access control control element signaling comprises: A medium access control control element for a network device to indicate a transmission configuration indication state, the transmission configuration indication state being a transmission configuration indication state received via a physical downlink control channel of a control resource set of a serving cell or a set of serving cells; or 2. The apparatus of claim 1, wherein the first medium access control element is a first medium access control element for configuring or updating the first reference signal.

13. The first medium access control control element comprises: information on a set of beam obstruction detection reference signals; Information on a reference signal for beam fault detection of a beam fault detection reference signal set; Serving cell information, and The apparatus of claim 12, further comprising at least one of the information of a serving cell list.

14. The apparatus of claim 1 , further comprising: a setting unit that causes a media access control entity of a terminal device to set a counter of beam failure instances of the beam failure detection reference signal set of the serving cell to 0 when the media access control control element signaling is associated with the beam failure detection reference signal set of the serving cell.

15. The apparatus of claim 14, wherein if the medium access control control element signaling can update or reconfigure any reference signal for beam failure detection in a beam failure detection reference signal set of a serving cell, the setting unit causes the MAC entity to set a counter of beam failure instances in the beam failure detection reference signal set to 0.

16. The apparatus of claim 14, wherein when a higher layer reconfigures beamFailureDetectionTimer, beamFailureInstanceMaxCount, or any reference signal for beam failure detection in a beam failure detection reference signal set of a serving cell, or when the medium access control control element signaling updates or reconfigures a reference signal for beam failure detection in the beam failure detection reference signal set of the serving cell, the setting unit causes the MAC entity to set a counter of beam failure instances in the beam failure detection reference signal set to 0.

17. The apparatus of claim 14, wherein when a higher layer reconfigures a beamFailureDetectionTimer or beamFailureInstanceMaxCount of a beam failure detection reference signal set of a serving cell, or when any reference signal in the beam failure detection reference signal set of the serving cell is reconfigured or updated, the setting unit causes the MAC entity to set a counter of beam failure instances of the beam failure detection reference signal set to 0.

18. A beam obstruction detection reference signal configuration device, comprising: A first configuration unit that uses radio resource control signaling to configure a reference signal for beam obstruction detection specific to a transmission / reception point; and a second configuration unit configured to configure a reference signal for failure detection using the radio resource control signaling.

19. The radio resource control signaling includes a first indication field, the first indication field being used to indicate a purpose of a reference signal for the failure detection; 20. The apparatus of claim 18, wherein the value of the first indication field is configured to be a radio link failure if the radio resource control signaling constitutes a reference signal for transmission / reception point specific beam failure detection.

20. A communication system including a network device and a terminal device, The network device and / or the terminal device, Configuring a first reference signal for beam failure detection using radio resource control signaling and configuring or updating said first reference signal using medium access control control element signaling, or A communication system configured to configure a reference signal for beam failure detection specific to a transmission / reception point using radio resource control signaling, and to configure a reference signal for failure detection using the radio resource control signaling.

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