Inter-cell beam control method and apparatus

Abstract

An inter-cell beam management method and device are provided, the inter-cell beam management method being used in a terminal device, the inter-cell beam management method including: receiving a configuration of a beam of a non-serving cell from a network device; and performing radio link failure detection using a reference signal for radio link failure detection configured by the network device, or performing radio link failure detection using a reference signal of a TCI state associated with a serving cell.

Description

Technical Field

[0001] The present invention relates to the technical field of communications.

Background Art

[0002] In Rel-15 NR, several MIMO (Multiple Input Multiple Output) characteristics are included to facilitate the use of a large number of antenna units in frequency bands below 6 GHz and above 6 GHz on the base station side.

[0003] In Rel-16 NR, Rel-15 NR is enhanced by the following means, namely, the introduction of an enhanced Type II codebook based on Discrete Fourier Transform (DFT) compression; support for multi-transmission reception point (TRP) transmission (especially for Enhanced Mobile Broadband (eMBB) and Physical Downlink Shared Channel (PDSCH)); enhancement of multi-beam operation (including reduction of measurement reconfiguration overhead related to latency and / or multiple Quasi Co-Location (QCL)); secondary cell (SCell) beam failure recovery (BFR); L1-SINR; low Peak to Average Power Ratio (PAPR) reference signal; and ensuring the characteristics of uplink full power transmission.

[0004] NR is in the process of commercialization, and various aspects that require further enhancement can be identified from actual deployment scenarios. For example, regarding inter-cell beam management (ICBM), the following are included, namely, In Rel-16, overhead and / or latency are reduced, and in high-speed vehicle scenarios on FR2 (e.g., terminal devices traveling at high speeds on highways), latency and overhead need to be reduced more aggressively, including not only within cells but also in inter-cell L1 and L2 layer mobility, as well as reducing the occurrence of beam failure events; In Rel-16, enhancements to ensure the selection of panel-specific uplink (UL) beams were studied, but there was not enough time to complete this work. This provides several possibilities for increasing uplink coverage, including mitigating the loss of uplink coverage due to satisfying the maximum permissible exposure (MPE) rule; Channels other than PDSCH can benefit from multi-TRP transmission (and multi-panel reception), including inter-cell multi-TRP operations. This includes several new multi-TRP use cases, such as high-density uplink deployments and / or heterogeneous network type deployment scenarios within a single macrocell; The use of multi-scenario SRS allows for, and may need to further enhance, the channel sounding reference signal (SRS), at least for capacity and coverage; and While Rel-16 supports Enhanced Type II Channel State Information (CSI), there appears to be some room for further enhancement. This includes utilizing some heterogeneity in CSI and channel statistics designed for multi-TRP / panel use cases of NC-JT, such as angle and latency, with the primary goal being FR1 Frequency Division Duplex (FDD) deployments.

[0005] Therefore, Rel-17 NR defines further enhancements to NR MIMO, including enhancements to multi-beam operations, primarily targeting FR2 but also suitable for FR1, and specifically including the following: 1) For intra-cell and inter-cell scenarios, characteristics that promote more efficient (lower latency and overhead) downlink / uplink (DL / UL) beam management are determined and defined to support higher terminal speeds and / or more transmission configuration indication (TCI) states, specifically as follows: This refers to the common beam used for downlink and uplink transmission / reception of data and control signals, particularly in the case of intra-band carrier aggregation (CA); The TCI architecture unifies the beam direction for the downlink and uplink; This involves enhancing the signaling mechanism of the above characteristics, thereby using more dynamic control signaling (compared to RRC) to improve latency and efficiency; and Regarding inter-cell beam management, one terminal device transmits to or receives from only one cell (i.e., the serving cell does not change when beam selection is complete). This includes L1-only measurement / reporting (i.e., no L3 influence) and beam indication associated with any physical cell label (PCI), of which the beam indication is based on the Rel-17 Unified TCI architecture; reuses the beam measurement / reporting mechanism of inter-cell mTRP; and considers only intra-DU and same frequency cases; and 2) Taking into account the reduction of uplink coverage loss by MPE, characteristics are determined and defined to facilitate uplink beam selection in terminal equipment with multiple panels, and a unified TCI architecture is used in which the uplink high-speed panel is selected based on the uplink beam indication.

[0006] The above-mentioned introduction of background art is intended to clearly and completely explain the proposed technical aspects of the present invention and to facilitate understanding by those skilled in the art. These technical aspects, as described in the background art of the present invention, should not be construed as being well-known to those skilled in the art. [Overview of the project] [Problems that the invention aims to solve]

[0007] A connected terminal device performs Radio Link Monitoring (RLM) in the active BWP (Bandwidth Part) based on a reference signal (e.g., Synchronization Signal Block (SSB) and / or Channel State Information Reference Signal (CSI-RS)) and a signal quality threshold set by the network. Of these, SSB-based radio link monitoring is based on the SSB associated with the initial downlink BWP and is set up for the initial downlink BWP and downlink BWPs (DL BWPs) that include the SSB associated with the initial downlink BWP; for other downlink BWPs, only CSI-RS-based radio link monitoring is performed.

[0008] The terminal device monitors the downlink wireless link quality of the primary cell (PCell) and instructs the upper layer to report out-of-sync or synchronized status. When a secondary cell group (SCG) is configured on the terminal device, the terminal device also monitors the downlink wireless link quality of the primary secondary cell (PSCell) of the secondary cell group.

[0009] For each downlink BWP in a single special cell (including primary and primary secondary cells), failureDetectionResources sets up a set of resource indexes for terminal devices by a set of corresponding RadioLinkMonitoringRS for radio link monitoring.

[0010] When multiple downlink BWPs of a single serving cell are configured on a single terminal device, the terminal device performs radio link monitoring using a reference signal corresponding to the resource index provided by the RadioLinkMonitoringRS of the active downlink BWP, or, if the RadioLinkMonitoringRS is not provided for the active downlink BWP, uses a reference signal provided by the active TCI state associated with PDCCH reception in the control resource set (CORESET) on the active downlink BWP.

[0011] If RLM RS (RadioLinkMonitoringRS) is not provided to the terminal device, and a TCI state associated with PDCCH reception including one or more CSI-RS is provided to the terminal device, With respect to wireless link monitoring, if the active TCI state associated with PDCCH reception includes only one reference signal (RS), the terminal device shall use the reference signal provided by the active TCI associated with PDCCH reception; and When an active TCI state associated with PDCCH reception includes two reference signals, the terminal device expects that the QCL type (qcl-Type) of one of the reference signals is set to "type D" and that the terminal device will use this reference signal with the QCL type set to "type D" for radio link monitoring, but does not expect that the QCL type of both reference signals will be set to "type D". For radio link monitoring, the terminal device is not required to use a single aperiodic or semi-persistent reference signal.

[0012] The inventors have discovered the following: In the prior art, if a reference signal (RLM RS) for radio link monitoring is not provided to a terminal device, and a TCI state associated with a PDCCH reception including one or more CSI-RSs is provided to the terminal device, the terminal device uses the reference signal provided by the active TCI state associated with the PDCCH reception for radio link monitoring.

[0013] Regarding inter-cell beam management, the following problem exists: if a terminal device activates a TCI state associated with receiving a downlink-only channel (e.g., physical downlink control channel PDCCH and / or physical downlink share channel PDSCH) of a cell other than the serving cell, and the terminal device is not provided with a reference signal for radio link monitoring, then according to the prior art, the terminal device will use the reference signal provided for the active TCI state of this cell other than the serving cell to perform radio link monitoring. This cannot be used to detect radio link failure (RLF) of the serving cell, which can lead to delays in the recovery of the radio resource control (RRC) connection and cause traffic disruption.

[0014] Furthermore, according to the prior art, if a reference signal for wireless link monitoring is not provided to one terminal device, and the terminal device is provided with TCI states associated with reception including one or more DL dedicated channels (DCHs), each TCI state includes one or two reference signals, and each reference signal is associated with one serving cell, then for inter-cell beam management, the TCI state needs to be associated with a downlink-only channel of a cell other than the serving cell. The current mechanism cannot support such a configuration and therefore cannot realize inter-cell beam management.

[0015] To solve one or more of the above-mentioned problems, embodiments of the present invention provide inter-cell beam management methods and apparatus. [Means for solving the problem]

[0016] According to a first aspect of an embodiment of the present invention, an inter-cell beam management device applicable to a terminal device is provided, the device is A first receiving unit that receives beam settings for non-serving cells from network equipment; and A first detection unit that performs wireless link failure detection using a reference signal for detecting a wireless link failure in the network device setting; or It includes a second detection unit that performs wireless link failure detection using a reference signal of a TCI state associated with a serving cell.

[0017] According to a second aspect of an embodiment of the present invention, a cell - to - cell beam management device applied to a network device is provided, and the device includes A first transmission unit that transmits a beam setting of a non - serving cell to a terminal device; and A second transmission unit that transmits a reference signal for detecting a wireless link failure to a terminal device; and / or It includes a third transmission unit that transmits a reference signal of a TCI state associated with a serving cell to a terminal device.

[0018] According to a third aspect of an embodiment of the present invention, a cell - to - cell beam management device applied to a terminal device is provided, and the device includes It includes a fourth reception unit that receives TCI state information of a non - serving cell from a network device.

[0019] According to a fourth aspect of an embodiment of the present invention, a cell - to - cell beam management device applied to a network device is provided, and the device includes It includes a sixth transmission unit that transmits TCI state information of a non - serving cell to a terminal device.

[0020] According to a fifth aspect of an embodiment of the present invention, a terminal device including the device according to the first aspect of the embodiment of the present invention is provided.

[0021] According to a sixth aspect of an embodiment of the present invention, a network device including the device according to the second aspect of the embodiment of the present invention is provided.

[0022] According to a seventh aspect of an embodiment of the present invention, a terminal device including the device according to the third aspect of the embodiment of the present invention is provided.

[0023] According to the eighth aspect of the embodiments of the present invention, a network device including the device described in the fourth aspect of the embodiments of the present invention is provided.

[0024] According to the ninth aspect of the embodiments of the present invention, a communication system is provided which includes a terminal device described in the fifth aspect of the embodiments of the present invention and / or a network device described in the sixth aspect of the embodiments of the present invention.

[0025] According to the tenth aspect of the embodiments of the present invention, a communication system is provided which includes a terminal device described in the seventh aspect of the embodiments of the present invention and / or a network device described in the eighth aspect of the embodiments of the present invention.

[0026] According to the eleventh aspect of an embodiment of the present invention, a method for inter-cell beam management applied to a terminal device is provided, the method is: Receive beam settings for non-serving cells from network equipment; and The wireless link failure detection is performed using the reference signal for wireless link failure detection in the aforementioned network device settings; or This includes detecting wireless link failures using a reference signal for the TCI status associated with the serving cell.

[0027] According to the twelfth aspect of the embodiment of the present invention, a method for inter-cell beam management applied to a network device is provided, the method is: Transmit beam settings for non-serving cells to terminal devices; and Transmit a reference signal to the terminal device for detecting wireless link failure; and / or This includes transmitting a reference signal to the terminal device for the TCI status associated with the serving cell.

[0028] According to the thirteenth aspect of an embodiment of the present invention, a method for inter-cell beam management applied to a terminal device is provided, and the method is This includes receiving TCI status information for non-serving cells from a network device.

[0029] According to the fourteenth aspect of the embodiment of the present invention, an inter-cell beam management method applicable to a network device is provided, the method is: This includes transmitting TCI status information of non-serving cells to terminal devices.

[0030] According to the fifteenth aspect of the embodiment of the present invention, a computer-readable program is provided, and when the program is executed by an inter-cell beam management device or terminal device, the program causes the inter-cell beam management device or terminal device to execute the inter-cell beam management method described in the eleventh or thirteenth aspect of the embodiment of the present invention.

[0031] According to the sixteenth aspect of the embodiment of the present invention, a storage medium storing a computer-readable program is provided, wherein the computer-readable program causes an inter-cell beam management device or terminal device to execute the inter-cell beam management method described in the eleventh or thirteenth aspect of the embodiment of the present invention.

[0032] According to the seventeenth aspect of the embodiment of the present invention, a computer-readable program is provided, and when the program is executed by an inter-cell beam management device or a network device, the program causes the inter-cell beam management device or network device to execute the inter-cell beam management method described in the twelfth or fourteenth aspect of the embodiment of the present invention.

[0033] According to the eighteenth aspect of the embodiment of the present invention, a storage medium storing a computer-readable program is provided, wherein the computer-readable program causes an inter-cell beam management device or a network device to execute the inter-cell beam management method described in the twelfth or fourteenth aspect of the embodiment of the present invention. [Effects of the Invention]

[0034] The advantageous effects of the embodiments of the present invention are at least as follows: when a terminal device receives beam settings for a non-serving cell from a network device, it can perform radio link failure detection using a reference signal for radio link failure detection in the network device settings, or it can perform radio link failure detection using a reference signal for the TCI status associated with the serving cell. In this way, inter-cell beam management can perform radio link failure detection for serving cells, thereby avoiding delays in RRC connection recovery and traffic interruptions, and ensuring system performance.

[0035] Furthermore, inter-cell beam management can be achieved when a terminal device receives TCI status information of a non-serving cell from a network device, and in this way, no reference signal for radio link monitoring is provided to a terminal device, and the terminal device is provided with a TCI status associated with reception including one or more downlink-only channels.

[0036] Specific embodiments of the present invention will be disclosed in detail by referring to the following description and drawings, and will show embodiments in which the principles of the present invention can be adopted. However, the embodiments of the present invention are not limited to these in scope. Embodiments of the present invention may include various changes, modifications and substitutions, as long as they are within the scope of the attached claims.

[0037] Furthermore, features described and / or shown in one embodiment may be used in the same or similar manner in one or more other embodiments, combined with or substituting features in other embodiments.

[0038] When used herein, terms such as “contains / have” refer to the presence of a feature, element, step, or assembly, but do not exclude the presence or addition of one or more other features, elements, steps, or assemblies. [Brief explanation of the drawing]

[0039] Elements and features described in one drawing or one embodiment of the present invention can be combined with elements and features shown in one or more other drawings or embodiments. Furthermore, similar reference numerals in the drawings are used to indicate corresponding parts in several drawings and to indicate corresponding parts used in multiple embodiments.

[0040] The included drawings are used to provide a further understanding of embodiments of the present invention, and these drawings constitute part of this specification and are used to illustrate embodiments of the present invention and to explain the principles of the present invention together with the textual description. Also, as is obvious, the drawings described below are merely for illustrating some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any creative work. [Figure 1] This figure shows a communication system in an embodiment of the present invention. [Figure 2] This figure shows a scenario for inter-cell beam management in an embodiment of the present invention. [Figure 3] This figure shows a scenario for inter-cell multi-TRP in an embodiment of the present invention. [Figure 4] This figure shows a method for managing inter-cell beams in Example 1 of the present invention. [Figure 5] This figure shows the method for implementation step 401 in Embodiment 1 of the present invention. [Figure 6] This figure shows the inter-cell beam management method in Example 2 of the present invention. [Figure 7] This figure shows the method of implementation step 601 in Embodiment 2 of the present invention. [Figure 8] This figure shows a method for managing inter-cell beams in Example 3 of the present invention. [Figure 9] This is another figure illustrating the inter-cell beam management method in Embodiment 3 of the present invention. [Figure 10] This figure shows a method for inter-cell beam management in Embodiment 4 of the present invention. [Figure 11] This figure shows the inter-cell beam management method in Example 5 of the present invention. [Figure 12] This figure shows an inter-cell beam management device in Example 6 of the present invention. [Figure 13] This figure shows the first receiving unit in Embodiment 6 of the present invention. [Figure 14] This figure shows an inter-cell beam management device in Example 7 of the present invention. [Figure 15] This figure shows the first transmission unit in Embodiment 7 of the present invention. [Figure 16] This figure shows an inter-cell beam management device in Example 8 of the present invention. [Figure 17] This figure shows an inter-cell beam management device in Example 9 of the present invention. [Figure 18] This is a block diagram showing the system configuration of the terminal device in Embodiment 10 of the present invention. [Figure 19] This is a block diagram showing the system configuration of a network device in Embodiment 11 of the present invention. [Figure 20] This is a block diagram showing the system configuration of the terminal device in Embodiment 12 of the present invention. [Figure 21] This is a block diagram showing the system configuration of the network device in Embodiment 13 of the present invention. [Modes for carrying out the invention]

[0041] The aforementioned and other features of the present invention will become clear by referring to the attached drawings and the following description. While the specification and drawings disclose specific embodiments of the present invention, these represent only a limited number of embodiments in which the principles of the present invention can be employed. It should be understood that the present invention is not limited to the described embodiments, but rather includes all modifications, variations, and substitutions within the scope of the attached claims.

[0042] In embodiments of the present invention, the terms "communication network" or "wireless communication network" may refer to a network conforming to any communication standard such as LTE (Long Term Evolution), LTE-A (LTE-Advanced), WCDMA (registered trademark) (Wideband Code Division Multiple Access), HSPA (High-Speed ​​Packet Access), etc.

[0043] Furthermore, communication between devices in a communication system may be carried out according to any stage of communication protocol, and may include, but is not limited to, the following communication protocols: namely, 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G, 5G, New Radio (NR), and / or other conventional or future-developed communication protocols.

[0044] In embodiments of the present invention, the term "network device" refers, for example, to a device in a communication system that connects terminal devices to a communication network and provides services to said terminal devices. A network device may include, but is not limited to, the following: "nodes" and / or "donors" under the IAB architecture, base stations (BS), access points (AP), transmission and reception points (TRP), broadcast transmitters, mobile management entities (MME), network gateways, servers, radio network controllers (RNC), base station controllers (BSC), etc.

[0045] Among these, base stations may include, but are not limited to, Node B (NodeB or NB), Evolutionary Node B (eNodeB or eNB), 5G base stations (gNB), and may also include RRH (Remote Radio Head), RRU (Remote Radio Unit), relay, or low-power nodes (e.g., femto, pico). Furthermore, the term “base station” may include some or all of these functions, and each base station can provide communication coverage to a specific geographical area. For example, a 5G base station gNB may include one gNB CU and one or more gNB DUs, where the CU / DU is a logical node of the gNB having some of the functions of the gNB. The term “cell” may refer to a base station and / or the area it covers, depending on the context in which the term is used. One gNB-DU supports one or more cells, and one cell is supported by only one gNB-DU.

[0046] In embodiments of the present invention, the terms "User Equipment" (UE) or "Terminal Equipment" (TE) refer to, for example, a device that accesses a communication network via a network device and receives services from the network. User equipment may be fixed or mobile, and may also be referred to as a mobile station (MS), terminal, subscriber station (SS), access terminal (AT), station, etc. For example, it may be a terminal device served by an IAB node or IAB donor under an IAB architecture.

[0047] Among these, user devices may include, but are not limited to, the following: cellular phones, PDAs (Personal Digital Assistants), wireless modems, wireless communication devices, mobile devices, machine-type communication devices, laptop computers, cordless telephones, smartphones, smartwatches, digital cameras, etc.

[0048] Furthermore, in scenarios such as IoT (Internet of Things), the user device may also be a monitoring or measurement device or equipment, and may include, but is not limited to, the following: machine-type communication (MTC) terminals, in-vehicle communication terminals, D2D (device to device) terminals, M2M (machine to machine) terminals, etc.

[0049] The following describes a scenario of an embodiment of the present invention through examples, but the present invention is not limited thereto.

[0050] Figure 1 shows a communication system in an embodiment of the present invention. It illustrates a case where a terminal device and a network device are used as examples. As shown in Figure 1, the communication system 100 may include a network device 101 and a terminal device 102. For convenience, Figure 1 will be explained using only one terminal device as an example. The network device 101 is, for example, an NR network device gNB.

[0051] In embodiments of the present invention, existing or future traffic may be transmitted between the network device 101 and the terminal device 102. For example, this traffic may include, but is not limited to, eMBB (enhanced Mobile Broadband), mMTC (massive Machine Type Communication), URLLC (Ultra-Reliable and Low-Latency Communication), etc.

[0052] For example, terminal device 102 communicates using beams on cells other than the serving cell (non-serving cells). The following describes in detail a scenario of an embodiment of the present invention.

[0053] For example, in an inter-cell beam management scenario, the network device 101 provides services to the terminal device 102 through a serving cell and one other cell, i.e., a non-serving cell, and both the serving cell and the non-serving cell belong to the same distributed unit (DU) of the network device 101.

[0054] Figure 2 shows a scenario for inter-cell beam management in an embodiment of the present invention. As shown in Figure 2, the network device 101 sets up beam 1 on the serving cell (cell 1) and beam 2 on the non-serving cell (cell 2) for the terminal device 102, and as the terminal device 102 moves, the network device 101 uses beam 1 on the serving cell and beam 2 on the non-serving cell in sequence to communicate with the terminal device 102.

[0055] Furthermore, for example, in the case of an inter-cell multi-TRP (mTRP) scenario, the network device provides services to the terminal device 102 via TRP-1 and TRP-2, and these two TRPs belong to different cells.

[0056] In embodiments of the present invention, a TRP is part of a network device that receives signals from and / or transmits signals to terminal devices. In multi-TRP (mTRP) operation, one serving cell can schedule terminal devices from two TRPs to provide better PDSCH coverage, reliability, and / or data rate, and these two TRPs may belong to the same cell or to different cells. For multi-TRP, there are two different operating modes: single DCI (Downlink Control Information) and multi-DCI. For these two modes, control of uplink and downlink operations is performed by the physical layer and MAC layer within the settings provided by the RRC layer. Under single DCI mode, terminal devices are scheduled by the same DCI from two TRPs, and under multi-DCI mode, terminal devices are scheduled by the individual DCI of each TRP.

[0057] Figure 3 shows a scenario of inter-cell multi-TRP in an embodiment of the present invention. As shown in Figure 3, network device 101 deploys two TRPs, namely TRP1 and TRP2. Network device 101 works with terminal device 102 through TRP1 and TRP2, TRP1 and TRP2 belong to different cells, for example, TRP1 belongs to cell 1 and TRP2 belongs to cell 2. TRP1 communicates with terminal device 102 using panel 1 via link 1 using the beam of cell 1, and TRP2 communicates with terminal device 102 using panel 2 via link 2 using the beam of cell 2.

[0058] In the scenarios shown in Figures 2 and 3, when activating the TCI state associated with receiving a downlink-only channel of a non-serving cell (cell 2) for terminal device 102, if no reference signal for radio link monitoring is provided to terminal device 102, according to the prior art, terminal device 102 would use the reference signal provided for the active TCI state of the non-serving cell to perform radio link monitoring, which cannot be used to detect radio link failures of the serving cell (cell 1). This could result in a delay in RRC connection recovery and traffic interruption.

[0059] Furthermore, according to the prior art, if the terminal device 102 is not provided with a reference signal for wireless link monitoring, and the terminal device 102 is provided with a TCI state associated with reception including one or more DCHs, each TCI state includes one or two reference signals, each reference signal associated with a serving cell (cell 1 or another serving cell (if carrier aggregation or dual connection is configured)), then for inter-cell beam management, the TCI state needs to be associated with a dedicated downlink channel of a non-serving cell (cell 2), and the current mechanism can support such a configuration, but cannot achieve inter-cell beam management.

[0060] The following describes various embodiments of the present invention in conjunction with the drawings. These embodiments are merely illustrative and do not limit the present invention. [Examples]

[0061] An embodiment of the present invention provides an inter-cell beam management method, which is applied to a terminal device. For example, the method is applied to the terminal device 102 in Figures 1 to 3.

[0062] Figure 4 shows a method for inter-cell beam control in Embodiment 1 of the present invention. As shown in Figure 4, the method includes the following steps.

[0063] Step 401: Receive beam settings for non-serving cells from network equipment; and Step 402: Perform wireless link failure detection using the reference signal for wireless link failure detection in the network device configuration; or Step 403: Perform wireless link failure detection using the TCI status reference signal associated with the serving cell.

[0064] In this way, when a terminal device receives beam settings for a non-serving cell from a network device, it can perform wireless link failure detection using a reference signal for wireless link failure detection in the network device settings, or by using a reference signal for the TCI status associated with the serving cell. Thus, inter-cell beam management can detect wireless link failures in serving cells, thereby avoiding delays in RRC connection recovery and traffic interruptions, and ensuring system performance.

[0065] In embodiments of the present invention, one of steps 402 and 403 can be performed after step 401. For example, step 402 is performed when a reference signal setting for wireless link failure detection is received from the network device, and step 403 is performed when a reference signal setting for wireless link failure detection is not received from the network device.

[0066] In embodiments of the present invention, when carrier aggregation is configured in the terminal device, the serving cell may include a special cell and / or a primary cell; when dual connection is configured in the terminal device, the serving cell may include at least one of a special cell, a primary cell of a primary cell group, and a primary secondary cell of a secondary cell group; and when both carrier aggregation and dual connection are configured in the terminal device, the serving cell may include at least one of a special cell, a primary cell of a primary cell group, and a primary secondary cell of a secondary cell group.

[0067] In the embodiments of the present invention, a non-serving cell refers to one cell other than a serving cell.

[0068] In step 401, the terminal device receives the beam configuration for the non-serving cell from the network device, meaning the network device configures the beam for the non-serving cell for the terminal device.

[0069] In other words, the terminal device receives the beam configuration for one cell other than the serving cell from the network device, meaning the network device configures the beam for one cell other than the serving cell for the terminal device.

[0070] Figure 5 shows the method of implementation step 401 in Embodiment 1 of the present invention. As shown in Figure 5, the method includes the following steps.

[0071] Step 501: Receive reference signal information and / or cell information for inter-cell beam management from the network device; and / or Step 502: Receive TCI status information for non-serving cells from the network device.

[0072] In embodiments of the present invention, at least one of steps 501 and 502 may be performed, and the order in which steps 501 and 502 are performed is not limited when both steps are performed.

[0073] In embodiments of the present invention, the reference signal information and / or cell information for inter-cell beam management are cell-corresponding information. In other words, the reference signal information and / or cell information for inter-cell beam management are cell-level information.

[0074] In embodiments of the present invention, the reference signal for the inter-cell beam management reference signal information may include SSB and / or CSI-RS.

[0075] In this case, for example, the reference signal information for inter-cell beam management includes the SSB index and / or CSI-RS identifier from the non-serving cell, or in other words, the reference signal information for inter-cell beam management includes the SSB index and / or CSI-RS identifier from the cell other than the serving cell.

[0076] In embodiments of the present invention, the cell information may include a physical cell identifier (Physical Cell ID, PCI).

[0077] In this case, for example, the cell information for inter-cell beam management includes the physical cell identifier of the non-serving cell, or in other words, the cell information for inter-cell beam management includes the physical cell identifier of the cell other than the serving cell.

[0078] In step 502, the terminal device receives TCI status information for non-serving cells from the network device, meaning the network device transmits TCI status information for non-serving cells to the terminal device.

[0079] In other words, the terminal device receives TCI status information for one cell other than the serving cell from the network device, and conversely, the network device provides TCI status information for one cell other than the serving cell to the terminal device.

[0080] Thus, inter-cell beam management can be achieved when no reference signal for wireless link monitoring is provided to a terminal device, and the terminal device is provided with a TCI state associated with reception including one or more downlink-only channels.

[0081] In embodiments of the present invention, the TCI state information may be unified TCI state information, TCI state information associated with PDCCH reception, or downlink TCI state information.

[0082] In embodiments of the present invention, the TCI status information of the non-serving cell includes, for example, that the TCI status information of the non-serving cell is associated with the reference signal information and / or the cell information of the inter-cell beam management (the cell-level information described above); or that the TCI status information of the non-serving cell includes the reference signal information and / or the cell information of the inter-cell beam management (e.g., physical cell markers); or that the TCI status information of the non-serving cell includes one or more QCL types. For example, the TCI status information of the non-serving cell includes two QCL types.

[0083] In embodiments of the present invention, the QCL type applies QCL information, which includes a serving cell index field and cell information or reference signals of non-serving cells.

[0084] In this case, the terminal device applies the cell information or reference signal of the non-serving cell and / or ignores the serving cell index area.

[0085] For example, one QCL type applies QCL information, which includes a serving cell index area, representing one serving cell of a terminal device that sets a reference signal, and is suitable for a serving cell that sets the TCI state when this area is absent; Furthermore, the QCL information may also include PCI or reference signals from a non-serving cell or a single cell other than a serving cell. The terminal device applies this information and ignores the serving cell index area included in the aforementioned QCL information.

[0086] For example, regarding the settings for the TCI state in RRC, a change to the TCI state IE (TCI-State information element) may be as simple as adding a new field.

[0087] For example, the TCI state IE marking the ASN.1 data format using abstract syntax may be expressed as follows:

[0088] [Table 1] The description of the additional new domain is as follows:

[0089] [Table 2]

[0090] [Table 3] Here, IE1 or field1 is the IE or area of ​​the beam, reference signal, cell indicator, or TCI state of a non-serving cell (one cell other than a serving cell) introduced for inter-cell beam management, or the IE or area in which it is located.

[0091] Furthermore, if TCI-State or QCL-Info includes physCellId, the terminal device applies the value in this range and ignores the cell range.

[0092] The above examples involve adding new domains. Alternatively, the descriptions of existing domains may be modified, as follows:

[0093] For example, the TCI state IE using an existing domain and marking it with an ASN.1 data format using abstract syntax may be expressed as follows:

[0094] [Table 4] The description of the existing domain has been changed, specifically as follows:

[0095] [Table 5]

[0096] [Table 6] The above explains the relevant aspects of setting up the beam for non-serving cells in step 401.

[0097] In step 402, wireless link failure detection is performed using the reference signal for wireless link failure detection in the network device configuration.

[0098] In other words, if a network device sets up a beam in a non-serving cell (a cell other than a serving cell) for a terminal device, the network device may, or should, provide a reference signal to that terminal for detecting radio link failures.

[0099] In embodiments of the present invention, the reference signal for detecting wireless link failure may include a reference signal used by a terminal device when performing wireless link monitoring; and / or a wireless link monitoring reference signal in which the target in the failure detection resource addition / modification list is set to “wireless link failure” or “both”.

[0100] For example, the reference signal used by the terminal device when performing wireless link monitoring includes at least one of the following: SSB is set for the initial downlink BWP of a special cell; A special cell, an SSB set for one downlink BWP, including an SSB associated with the initial downlink BWP; and This is a CSI-RS configured for one of the downlink BWPs of a special cell.

[0101] For example, a radio link monitoring reference signal whose target in the failure detection resource addition / modification list is set to "radio link failure" or "both" is RadioLinkMonitoringRS in failureDetectionResourcesToAddModList, and its purpose is to have the purpose field set to "rlf" or "both".

[0102] In the case of step 402, for example, changing the RRC setting IE and marking the ASN.1 data format using abstract syntax may be expressed as follows:

[0103] [Table 7] The description of the existing domain has been changed, specifically as follows:

[0104] [Table 8]

[0105] [Table 9]

[0106] [Table 10] Here, IE1 or field1 is the IE or area of ​​the beam, reference signal, cell indicator, or TCI state of a non-serving cell (one cell other than a serving cell) introduced for inter-cell beam management, or the IE or area in which it is located.

[0107] The above examples are modifications to existing domains. Alternatively, a new domain may be added to instruct the addition and / or modification of the Rel-17 failure detection resource list, for example, failureDetectionResourcesToAddModList-r17, and marking the ASN.1 data format using abstract syntax may be expressed as follows:

[0108] [Table 11] The description of the existing domain has been changed, specifically as follows:

[0109] [Table 12]

[0110] [Table 13]

[0111] [Table 14] In step 403, wireless link failure detection is performed using a reference signal of the TCI status associated with the serving cell.

[0112] In other words, if a network device sets up a beam for a non-serving cell (a cell other than the serving cell) for a terminal, and the network device does not provide a reference signal for wireless link failure detection, wireless link failure detection is performed using a reference signal for the TCI status associated with the serving cell.

[0113] In embodiments of the present invention, the non-serving cell may be associated with the serving cell.

[0114] In embodiments of the present invention, the TCI state reference signal associated with the serving cell may also be the active TCI state reference signal associated with the serving cell. In other words, wireless link failure detection is performed using the active TCI state reference signal associated with the serving cell.

[0115] For example, the TCI state is a unified TCI state, a TCI state associated with PDCCH reception, or a downlink TCI state.

[0116] In embodiments of the present invention, the TCI state associated with the serving cell may include a reference signal and / or cell information of one serving cell, or the TCI state associated with the serving cell may be associated with a reference signal of one serving cell.

[0117] For example, the TCI state associated with the serving cell being associated with a reference signal of a serving cell includes the following: the TCI state associated with the serving cell includes one or more QCL types.

[0118] In embodiments of the present invention, the QCL type applies QCL information, which includes a serving cell index area and cell information or reference signals of non-serving cells.

[0119] In this case, the terminal device applies the cell information or reference signal of the non-serving cell and / or ignores the serving cell index area.

[0120] For example, one QCL type applies QCL information, which includes a serving cell index area, representing one serving cell of a terminal device that sets a reference signal, and is suitable for a serving cell that sets the TCI state when this area is absent; also, The QCL information may also include PCI or reference signals from a non-serving cell or a single cell other than a serving cell. The terminal device applies this information and ignores the serving cell index area included in the aforementioned QCL information.

[0121] The specific details of the changes to the CI state IE (TCI-State information element) are the same as described above, so a detailed explanation will be omitted here.

[0122] Step 403 may also involve, namely, detecting a wireless link failure using a TCI status reference signal associated with a serving cell until the terminal device communicates with the network using the beam of a non-serving cell associated with that serving cell.

[0123] In other words, if a network device sets up a beam in a non-serving cell (one cell other than a serving cell) for a terminal device, and the network device does not provide a reference signal for radio link failure detection, radio link failure detection is performed using a reference signal of the TCI state associated with the serving cell until the terminal device communicates with the network using the beam in the non-serving cell associated with that serving cell. Alternatively, if a network device sets up a beam in a non-serving cell (one cell other than a serving cell) for a terminal device, and the network device does not provide a reference signal for radio link failure detection, radio link failure detection is performed using a reference signal of the active TCI state associated with the serving cell until the terminal device communicates with the network using the beam in the non-serving cell associated with that serving cell.

[0124] In embodiments of the present invention, the terminal device communicating with the network using the beam of a non-serving cell associated with the serving cell may include the following: namely, the network device sets up the beam of a non-serving cell (one cell other than the serving cell) for the terminal, the specific details of which are the same as described above, and a detailed explanation is omitted here.

[0125] In embodiments of the present invention, the terminal device communicating with the network using beams of non-serving cells associated with the serving cell may further include the non-serving cell beams being associated with one serving cell.

[0126] For example, the association of the beam of a non-serving cell with a serving cell includes the following: the beam of the non-serving cell is included in the configuration of a serving cell; or the beam of the non-serving cell includes the cell information of a serving cell.

[0127] In embodiments of the present invention, the cell information of a serving cell includes, for example, an identifier for the serving cell, and includes at least one of the following: a serving cell index (ServCellIndex), a physical cell identifier (PCI), and a cell identifier (cellIdentify).

[0128] In embodiments of the present invention, the terminal device communicating with the network using the beam of a non-serving cell associated with the serving cell may further include the following: the network device activates the TCI state associated with the beam by L1 information and / or MAC CE.

[0129] In the case of step 403, for example, changing the RRC setting IE and marking the ASN.1 data format using abstract syntax may be expressed as follows:

[0130] [Table 15] The description of the existing domain has been changed, specifically as follows:

[0131] [Table 16]

[0132] [Table 17] Corresponding to the above example is that when a terminal device communicates using a beam from a non-serving cell, the terminal device no longer monitors the reference signal (RLM RS) for radio link monitoring of the serving cell. The above “if the TCI state is activated” may further be written as “if the UE uses the PDCCH for communication,” or “until the TCI state is not activated,” “until the UE does not use the PDCCH for communication,” “until the TCI state of PDCCH on a cell associated with the serving cell is activated,” or “until the UE uses the PDCCH on a cell associated with the serving cell for communication,” or any other wording.

[0133] Furthermore, when a terminal device communicates using a beam from a non-serving cell, the terminal device may continue to monitor the reference signal (RLM RS) for radio link monitoring of the serving cell, and marking the ASN.1 data format using abstract syntax may be expressed as follows:

[0134] [Table 18] The description of the existing domain has been changed, specifically as follows:

[0135] [Table 19]

[0136] [Table 20] In this case, when the network device sets up multiple TCI states for the terminal device, the terminal device uses the TCI state corresponding to PDCCH reception, and when the terminal device uses the TCI state for PDCCH reception of a non-serving cell, the reference signal (RS) included in the previously used serving cell TCI state is used for RLF detection, i.e., it becomes the reference signal for radio link monitoring (RLM RS).

[0137] As can be seen from the above embodiment, when a terminal device receives beam settings for a non-serving cell from a network device, it can perform wireless link failure detection using a reference signal for wireless link failure detection in the network device settings, or it can perform wireless link failure detection using a reference signal for the TCI status associated with the serving cell. In this way, inter-cell beam management can detect wireless link failures in serving cells, thereby avoiding delays in RRC connection recovery and traffic interruptions, and ensuring system performance. [Examples]

[0138] An embodiment of the present invention provides an inter-cell beam management method, which is applied to a network device and corresponds to the inter-cell beam management method applied to a terminal device described in Example 1. Therefore, redundant explanations of the same content are omitted here.

[0139] Figure 6 shows a method for inter-cell beam control in Example 2 of the present invention. As shown in Figure 6, the method includes the following steps.

[0140] Step 601: Send the beam settings for the non-serving cell to the terminal device; and Step 602: Send a reference signal to the terminal device for detecting wireless link failure; and / or Step 603: Send a reference signal to the terminal device for the TCI status associated with the serving cell.

[0141] In embodiments of the present invention, at least one of steps 602 and 603 may be performed, and the order in which steps 602 and 603 are performed is not limited.

[0142] Figure 7 shows the method of implementation step 601 in Embodiment 2 of the present invention. As shown in Figure 7, the method includes the following steps.

[0143] Step 701: Transmit reference signal information and / or cell information for inter-cell beam management to the terminal device; and / or Step 702: Send TCI status information of non-serving cells to the terminal device.

[0144] In embodiments of the present invention, at least one of steps 701 and 702 may be performed, and the order in which these two steps are performed is not limited when both steps 701 and 702 are performed.

[0145] In embodiments of the present invention, the reference signal information for inter-cell beam management and / or the cell information for inter-cell beam management may be information corresponding to a cell, that is, cell-level information.

[0146] In embodiments of the present invention, the reference signal for the inter-cell beam management reference signal information may include SSB and / or CSI-RS.

[0147] For example, the reference signal information for inter-cell beam management includes an SSB index and / or CSI-RS label from the non-serving cell.

[0148] In embodiments of the present invention, the cell information may include physical cell labels.

[0149] For example, the cell information for inter-cell beam management includes the physical cell identifier of the non-serving cell.

[0150] In embodiments of the present invention, the TCI status information may be unified TCI status information, TCI status information associated with PDCCH reception, or downlink TCI status information.

[0151] In embodiments of the present invention, the TCI status information of the non-serving cell may be associated with the reference signal information and / or cell information of the inter-cell beam management, or the TCI status information of the non-serving cell may include the reference signal information and / or cell information of the inter-cell beam management, or the TCI status information of the non-serving cell may include one or more QCL types.

[0152] For example, the QCL type applies QCL information, which includes the serving cell index area and cell information or reference signals of non-serving cells.

[0153] In embodiments of the present invention, the reference signal for detecting wireless link failure may include the following: a reference signal used when a terminal device performs wireless link monitoring; and / or a wireless link monitoring reference signal in which the target in the failure detection resource addition / modification list is set to “wireless link failure” or “both”.

[0154] In embodiments of the present invention, the reference signals used by the terminal device when performing wireless link monitoring may include at least one of the following: an SSB set for the initial downlink BWP of a special cell; an SSB set for one downlink BWP of the special cell, including an SSB associated with the initial downlink BWP; and a CSI-RS set for one downlink BWP of the special cell.

[0155] In embodiments of the present invention, the TCI state reference signal associated with the serving cell may also be the active TCI state reference signal associated with the serving cell.

[0156] In the embodiments of the present invention, the TCI state may be a unified TCI state, a TCI state associated with PDCCH reception, or a downlink TCI state.

[0157] In embodiments of the present invention, the TCI state associated with the serving cell includes a reference signal and / or cell information of one serving cell, or the TCI state associated with the serving cell is associated with a reference signal of one serving cell.

[0158] In embodiments of the present invention, the TCI state associated with the serving cell may be associated with a reference signal of one serving cell, which means that the TCI state associated with the serving cell includes one or more QCL types.

[0159] For example, the QCL type applies QCL information, which includes the serving cell index area and cell information or reference signals of non-serving cells.

[0160] In the embodiments of the present invention, specific details regarding the network device can be found in the relevant description in Embodiment 1, and therefore, a redundant explanation is omitted here.

[0161] As can be seen from the above embodiment, when a terminal device receives beam settings for a non-serving cell from a network device, it can perform wireless link failure detection using a reference signal for wireless link failure detection in the network device settings, or it can perform wireless link failure detection using a reference signal for the TCI status associated with the serving cell. In this way, inter-cell beam management can detect wireless link failures in serving cells, thereby avoiding delays in RRC connection recovery and traffic interruptions, and ensuring system performance. [Examples]

[0162] An embodiment of the present invention provides an inter-cell beam management method, which is applied to network devices and terminal devices, and corresponds to the inter-cell beam management method applied to terminal devices described in Example 1 and the inter-cell beam management method applied to network devices described in Example 2. Here, redundant explanations of the same content are omitted.

[0163] Figure 8 shows a method for inter-cell beam control in Embodiment 3 of the present invention. As shown in Figure 8, the method includes the following steps.

[0164] Step 801: The network device sends the beam settings for the non-serving cell to the terminal device; Step 802: The network device sends a reference signal to the terminal device for detecting wireless link failure; and Step 803: The terminal device performs wireless link failure detection using the reference signal for wireless link failure detection.

[0165] Figure 9 is another diagram illustrating an inter-cell beam management method in Embodiment 3 of the present invention. As shown in Figure 9, the method includes the following steps.

[0166] Step 901: The network device sends the beam settings for the non-serving cell to the terminal device; Step 902: The network device transmits a reference signal to the terminal device for the TCI status associated with the serving cell; and Step 903: The terminal device uses a reference signal of the TCI status associated with the serving cell to detect a wireless link failure.

[0167] In the embodiments of the present invention, the specific implementation of steps 801 to 803 and steps 901 to 903 can be found in the descriptions in Examples 1 and 2, and therefore, a redundant explanation is omitted here.

[0168] As can be seen from the above embodiment, when a terminal device receives beam settings for a non-serving cell from a network device, it can perform wireless link failure detection using a reference signal for wireless link failure detection in the network device settings, or it can perform wireless link failure detection using a reference signal for the TCI status associated with the serving cell. In this way, inter-cell beam management can detect wireless link failures in serving cells, thereby avoiding delays in RRC connection recovery and traffic interruptions, and ensuring system performance. [Examples]

[0169] An embodiment of the present invention provides an inter-cell beam management method, which is applied to a terminal device. For example, the method is applied to the terminal device 102 in Figures 1 to 3.

[0170] Figure 10 shows a method for inter-cell beam control in Embodiment 4 of the present invention. As shown in Figure 10, the method includes the following steps.

[0171] Step 1001: Receive TCI status information for non-serving cells from the network device.

[0172] In other words, the network device transmits TCI status information for non-serving cells to the terminal device.

[0173] In other words, the terminal device receives TCI status information for one cell other than the serving cell from the network device, and conversely, the network device transmits TCI status information for one cell other than the serving cell to the terminal device.

[0174] Thus, inter-cell beam management can be achieved when no reference signal for wireless link monitoring is provided to a terminal device, and the terminal device is provided with a TCI state associated with reception including one or more downlink-only channels.

[0175] In embodiments of the present invention, the TCI state information may be unified TCI state information, TCI state information associated with PDCCH reception, or downlink TCI state information.

[0176] In embodiments of the present invention, the TCI status information of the non-serving cell includes, for example, that the TCI status information of the non-serving cell is associated with the reference signal information and / or cell information of the inter-cell beam management (the cell-level information described above), or that the TCI status information of the non-serving cell includes the reference signal information and / or cell information of the inter-cell beam management (e.g., a physical cell indicator), or that the TCI status information of the non-serving cell includes one or more QCL types. For example, the TCI status information of the non-serving cell includes two QCL types.

[0177] In embodiments of the present invention, the QCL type applies QCL information, which includes a serving cell index area and cell information or reference signals of non-serving cells.

[0178] In this case, the terminal device applies the cell information or reference signal of the non-serving cell and / or ignores the serving cell index area.

[0179] For example, one QCL type applies QCL information, which includes a serving cell index area, representing one serving cell of a terminal device that sets a reference signal, and is suitable for a serving cell that sets the TCI state when this area is absent; also, The QCL information may also include PCI or reference signals from a non-serving cell or a single cell other than a serving cell. The terminal device applies this information and ignores the serving cell index area included in the aforementioned QCL information.

[0180] For example, regarding the settings for the TCI state in RRC, a change to the TCI state IE (TCI-State information element) may simply be the addition of a new field.

[0181] For example, marking an ASN.1 data format using the TCI state IE abstract syntax may be expressed as follows:

[0182] [Table 21] The description of the additional new domain is as follows:

[0183] [Table 22]

[0184] [Table 23] Here, IE1 or field1 is the IE or area of ​​the beam, reference signal, cell indicator, or TCI state of a non-serving cell (one cell other than a serving cell) introduced for inter-cell beam management, or the IE or area in which it is located.

[0185] Furthermore, if TCI-State or QCL-Info includes physCellId, the terminal device applies the value in this range and ignores the cell range.

[0186] The above examples represent the addition of new domains. Alternatively, the descriptions of existing domains may be modified, as follows:

[0187] For example, the TCI state IE using an existing domain and marking it with an ASN.1 data format using abstract syntax may be expressed as follows:

[0188] [Table 24] The description of the existing domain has been changed, specifically as follows:

[0189] [Table 25]

[0190] [Table 26] For other related details, please refer to the description in Example 1, and we will omit the redundant explanation here.

[0191] As can be seen from the above embodiment, inter-cell beam management can be achieved when a terminal device receives TCI status information of a non-serving cell from a network device, and in this way, no reference signal for radio link monitoring is provided to a terminal device, and the terminal device is provided with a TCI status associated with reception including one or more downlink-only channels. [Examples]

[0192] An embodiment of the present invention provides an inter-cell beam management method, which is applied to a network device and corresponds to the inter-cell beam management method applied to a terminal device described in Example 4, and redundant explanations of the same content are omitted here.

[0193] Figure 11 shows a method for inter-cell beam control in Embodiment 5 of the present invention. As shown in Figure 11, the method includes the following steps.

[0194] Step 1101: Send TCI status information of non-serving cells to the terminal device.

[0195] In embodiments of the present invention, the TCI status information may be unified TCI status information, TCI status information associated with PDCCH reception, or downlink TCI status information.

[0196] In embodiments of the present invention, the TCI status information of the non-serving cell may be associated with the reference signal information and / or cell information of the inter-cell beam management; or the TCI status information of the non-serving cell may include the reference signal information and / or cell information of the inter-cell beam management; or the TCI status information of the non-serving cell may include one or more QCL types.

[0197] For example, the QCL type applies QCL information, which includes the serving cell index area and cell information or reference signals of non-serving cells.

[0198] For example, the terminal device applies the cell information or reference signal of the non-serving cell and / or ignores the serving cell index area.

[0199] In the embodiments of the present invention, specific details regarding the network device can be found in the relevant description in Embodiment 1, and therefore, a redundant explanation is omitted here.

[0200] As can be seen from the above embodiment, by transmitting TCI status information of non-serving cells to network device terminals, inter-cell beam management can be realized when no reference signal for radio link monitoring is provided to one terminal device, and a TCI status associated with reception including one or more downlink-only channels is provided to the terminal device. [Examples]

[0201] An embodiment of the present invention provides an inter-cell beam management device, which is applied to a terminal device. Since the principle by which the device solves the problem is the same as that of the method in Example 1, specific implementations can be found by referring to the implementation of the method in Example 1, and redundant explanations that are the same or related are omitted here.

[0202] Figure 12 shows an inter-cell beam control device in Embodiment 6 of the present invention. As shown in Figure 12, the inter-cell beam control device 1200 includes the following:

[0203] First receiving unit 1201: Receives beam settings for non-serving cells from network equipment; and First detection unit 1202: Performs wireless link failure detection using the reference signal for wireless link failure detection in the network device settings; or Second detection unit 1203: Performs wireless link failure detection using a reference signal of the TCI status associated with the serving cell.

[0204] Figure 13 shows the first receiving unit in Embodiment 6 of the present invention. As shown in Figure 13, the first receiving unit 1201 includes the following:

[0205] Second receiving unit 1301: Receives reference signal information and / or cell information for inter-cell beam management from the network device; and / or Third receiving unit 1302: Receives TCI status information of non-serving cells from network devices.

[0206] In embodiments of the present invention, the reference signal information for inter-cell beam management and / or the cell information for inter-cell beam management may be information corresponding to a cell.

[0207] In embodiments of the present invention, the reference signal for the inter-cell beam management reference signal information may include SSB and / or CSI-RS.

[0208] For example, the reference signal information for inter-cell beam management includes an SSB index and / or CSI-RS label from the non-serving cell.

[0209] In embodiments of the present invention, the cell information may include physical cell labels.

[0210] For example, the cell information for inter-cell beam management includes the physical cell identifier of the non-serving cell.

[0211] In embodiments of the present invention, the TCI status information may be unified TCI status information, TCI status information associated with PDCCH reception, or downlink TCI status information.

[0212] In embodiments of the present invention, the TCI status information of the non-serving cell may be associated with the reference signal information and / or cell information of the inter-cell beam management; or the TCI status information of the non-serving cell may include the reference signal information and / or cell information of the inter-cell beam management; or the TCI status information of the non-serving cell may include one or more QCL types.

[0213] For example, the QCL type applies QCL information, which includes the serving cell index area and cell information or reference signals of non-serving cells.

[0214] For example, the apparatus may further include a first processing unit which applies cell information or reference signals of the non-serving cell and / or ignores the serving cell index area.

[0215] In embodiments of the present invention, the reference signal for detecting wireless link failure may include, namely, a reference signal used by a terminal device when performing wireless link monitoring; and / or a wireless link monitoring reference signal in which the target in the failure detection resource addition / modification list is set to “wireless link failure” or “both”.

[0216] In embodiments of the present invention, the reference signals used by the terminal device when performing wireless link monitoring may include at least one of the following: an SSB set for the initial downlink BWP of a special cell; an SSB set for one downlink BWP of the special cell, including an SSB associated with the initial downlink BWP; and a CSI-RS set for one downlink BWP of the special cell.

[0217] In an embodiment of the present invention, the reference signal of the TCI state associated with the serving cell may be the reference signal of the active TCI state associated with the serving cell.

[0218] In an embodiment of the present invention, the TCI state may be a unified TCI state, a TCI state associated with PDCCH reception, or a downlink TCI state.

[0219] In an embodiment of the present invention, the TCI state associated with the serving cell may include the reference signal of one serving cell and / or the cell information of one serving cell, or the TCI state associated with the serving cell is associated with the reference signal of one serving cell.

[0220] In an embodiment of the present invention, the fact that the TCI state associated with the serving cell is associated with the reference signal of one serving cell may include the following, that is, the TCI state associated with the serving cell includes one or more QCL types.

[0221] For example, the QCL type applies QCL information, and the QCL information includes a serving cell index field and the cell information or reference signal of a non-serving cell.

[0222] For example, the device may further include a second processing unit, which applies the cell information or reference signal of the non-serving cell and / or ignores the serving cell index field.

[0223] In an embodiment of the present invention, the second detection unit 1203 may use the reference signal of the TCI state associated with the serving cell to perform radio link failure detection until the terminal device communicates with the network using the beam of the non-serving cell associated with the serving cell.

[0224] In an embodiment of the present invention, the beam of the non-serving cell may be associated with one serving cell.

[0225] In embodiments of the present invention, the association of the beam of the non-serving cell with a serving cell may include the following: the beam of the non-serving cell is included in the setting of a serving cell; or the beam of the non-serving cell includes the cell information of a serving cell.

[0226] In embodiments of the present invention, the terminal device communicating with the network using the beam of a non-serving cell associated with the serving cell may include the following: the network device activates the TCI state associated with the beam by L1 information and / or MAC CE.

[0227] In the embodiments of the present invention, the specific functions of each of the above-mentioned units are the same as those described in the relevant steps in Embodiment 1, and therefore, a redundant explanation is omitted here.

[0228] As can be seen from the above embodiment, when a terminal device receives beam settings for a non-serving cell from a network device, it can perform wireless link failure detection using a reference signal for wireless link failure detection in the network device settings, or it can perform wireless link failure detection using a reference signal for the TCI status associated with the serving cell. In this way, inter-cell beam management can detect wireless link failures in serving cells, thereby avoiding delays in RRC connection recovery and traffic interruptions, and ensuring system performance. [Examples]

[0229] An embodiment of the present invention provides an inter-cell beam management device, which is applied to a network device. Since the principle by which the device solves the problem is the same as that of the method in Example 2, for specific implementations, refer to the implementation of the method in Example 2, and redundant explanations that are the same or related are omitted here.

[0230] Figure 14 shows an inter-cell beam management device in Embodiment 7 of the present invention. As shown in Figure 14, the device 1400 includes the following:

[0231] First transmitting unit 1401: transmits beam settings for non-serving cells to terminal equipment; and Second transmitting unit 1402: Transmits a reference signal to the terminal device for detecting wireless link failure; and / or Third transmitting unit 1403: Transmits a reference signal to the terminal device indicating the TCI status associated with the serving cell.

[0232] Figure 15 shows the first transmission unit in Embodiment 7 of the present invention. As shown in Figure 14, the first transmission unit 1401 includes the following:

[0233] Fourth transmitting unit 1501: Transmits reference signal information and / or cell information for inter-cell beam management to the terminal device; and / or Fifth transmission unit 1502: Transmits TCI status information of non-serving cells to terminal devices.

[0234] In embodiments of the present invention, the reference signal information for inter-cell beam management and / or the cell information for inter-cell beam management may be information corresponding to a cell.

[0235] In embodiments of the present invention, the reference signal for the inter-cell beam management reference signal information may include SSB and / or CSI-RS.

[0236] For example, the reference signal information for inter-cell beam management includes an SSB index and / or CSI-RS label from the non-serving cell.

[0237] In embodiments of the present invention, the cell information may include physical cell labels.

[0238] For example, the cell information for inter-cell beam management includes the physical cell identifier of the non-serving cell.

[0239] In an embodiment of the present invention, the TCI state information may be unified TCI state information, TCI state information associated with PDCCH reception, or downlink TCI state information.

[0240] In an embodiment of the present invention, the TCI state information of the non-serving cell may be associated with the reference signal information of the inter-cell beam management and / or the cell information of the inter-cell beam management; or, the TCI state information of the non-serving cell may include the reference signal information of the inter-cell beam management and / or the cell information of the inter-cell beam management; or, the TCI state information of the non-serving cell may include one or more QCL types.

[0241] For example, the QCL type applies QCL information, and the QCL information includes a serving cell index field and cell information or a reference signal of a non-serving cell.

[0242] In an embodiment of the present invention, the reference signal for radio link failure detection may include the following, that is, the reference signal used when the terminal device performs radio link monitoring; and / or the radio link monitoring reference signal whose target in the failure detection resource addition / change list is set as "radio link failure" or "both".

[0243] In an embodiment of the present invention, the reference signal used when the terminal device performs radio link monitoring may include at least one of the following, that is, the SSB set for the initial downlink BWP of a special cell; the SSB set for one downlink BWP including the SSB associated with the initial downlink BWP of a special cell; and the CSI-RS set for one downlink BWP of a special cell.

[0244] In an embodiment of the present invention, the reference signal of the TCI state associated with the serving cell may be the reference signal of the active TCI state associated with the serving cell.

[0245] In the embodiments of the present invention, the TCI state may be a unified TCI state, a TCI state associated with PDCCH reception, or a downlink TCI state.

[0246] In embodiments of the present invention, the TCI state associated with the serving cell may include a reference signal and / or cell information of one serving cell; or the TCI state associated with the serving cell may be associated with a reference signal of one serving cell.

[0247] In embodiments of the present invention, the TCI state associated with the serving cell may be associated with a reference signal of one serving cell, which means that the TCI state associated with the serving cell includes one or more QCL types.

[0248] For example, the QCL type applies QCL information, which includes the serving cell index area and cell information or reference signals of non-serving cells.

[0249] In the embodiments of the present invention, the specific functions of each of the above-mentioned units are the same as those described in the relevant steps in Embodiments 1 and 2, and therefore, a redundant explanation is omitted here.

[0250] As can be seen from the above embodiment, when a terminal device receives beam settings for a non-serving cell from a network device, it can perform wireless link failure detection using a reference signal for wireless link failure detection in the network device settings, or it can perform wireless link failure detection using a reference signal for the TCI status associated with the serving cell. In this way, inter-cell beam management can detect wireless link failures in serving cells, thereby avoiding delays in RRC connection recovery and traffic interruptions, and ensuring system performance. [Examples]

[0251] An embodiment of the present invention provides an inter-cell beam management device, which is applied to a terminal device. Since the principle by which this device solves the problem is the same as that of the method in Embodiment 4, for specific implementations, refer to the implementation of the method in Embodiment 4, and redundant explanations that are the same or related are omitted here.

[0252] Figure 16 shows an inter-cell beam control device in Embodiment 8 of the present invention. As shown in Figure 16, the inter-cell beam control device 1600 includes the following:

[0253] Fourth receiving unit 1601: Receives TCI status information of non-serving cells from network devices.

[0254] In embodiments of the present invention, the TCI status information may be unified TCI status information, TCI status information associated with PDCCH reception, or downlink TCI status information.

[0255] In embodiments of the present invention, the TCI status information of the non-serving cell may be associated with the reference signal information and / or cell information of the inter-cell beam management; or the TCI status information of the non-serving cell may include the reference signal information and / or cell information of the inter-cell beam management; or the TCI status information of the non-serving cell may include one or more QCL types.

[0256] For example, the QCL type applies QCL information, which includes the serving cell index area and cell information or reference signals of non-serving cells.

[0257] For example, the apparatus may further include a third processing unit that applies cell information or reference signals of the non-serving cell and / or ignores the serving cell index area.

[0258] In the embodiments of the present invention, the specific functions of each of the above-described units are the same as those described in the relevant steps in Embodiment 4, and therefore, a redundant explanation is omitted here.

[0259] As can be seen from the above embodiment, inter-cell beam management can be achieved when a terminal device receives TCI status information of a non-serving cell from a network device, and in this way, no reference signal for radio link monitoring is provided to a terminal device, and the terminal device is provided with a TCI status associated with reception including one or more downlink-only channels. [Examples]

[0260] An embodiment of the present invention provides an inter-cell beam management device, which is applied to a network device. Since the principle by which the device solves the problem is the same as that of the method in Example 5, for specific implementations, refer to the implementation of the method in Example 5, and redundant explanations that are the same or related are omitted here.

[0261] Figure 17 shows an inter-cell beam control device in Embodiment 9 of the present invention. As shown in Figure 17, the inter-cell beam control device 1700 includes the following:

[0262] Sixth transmission unit 1701: Transmits TCI status information of non-serving cells to terminal devices.

[0263] In embodiments of the present invention, the TCI status information may be unified TCI status information, TCI status information associated with PDCCH reception, or downlink TCI status information.

[0264] In embodiments of the present invention, the TCI status information of the non-serving cell may be associated with the reference signal information and / or cell information of the inter-cell beam management; or the TCI status information of the non-serving cell may include the reference signal information and / or cell information of the inter-cell beam management; or the TCI status information of the non-serving cell may include one or more QCL types.

[0265] For example, the QCL type applies QCL information, which includes the serving cell index area and cell information or reference signals of non-serving cells.

[0266] For example, the terminal device applies the cell information or reference signal of the non-serving cell and / or ignores the serving cell index area.

[0267] In the embodiments of the present invention, the specific functions of each of the above-described units are the same as those described in the relevant steps in Embodiments 4 and 5, and therefore, a redundant explanation is omitted here.

[0268] As can be seen from the above embodiment, inter-cell beam management can be achieved when a terminal device receives TCI status information of a non-serving cell from a network device, and in this way, no reference signal for radio link monitoring is provided to a terminal device, and the terminal device is provided with a TCI status associated with reception including one or more downlink-only channels. [Examples]

[0269] An embodiment of the present invention provides a terminal device, which includes the inter-cell beam management device described in Example 6.

[0270] Figure 18 is a block diagram showing the system configuration of a terminal device in Embodiment 10 of the present invention. As shown in Figure 18, the terminal device 1800 may include a processor 1810 and a memory unit 1820, the memory unit 1820 being connected to the processor 1810. Note that this figure is merely illustrative, and telecommunications functions or other functions may be realized by supplementing or substituting other types of configurations.

[0271] In one implementation, the functions of the inter-cell beam management device may be integrated into the processor 1810. The processor 1810 may be configured as follows: it receives beam settings of non-serving cells from a network device; and performs radio link failure detection using a reference signal for radio link failure detection of the network device settings, or performs radio link failure detection using a reference signal for TCI status associated with a serving cell.

[0272] In another implementation, the inter-cell beam control device may be located separately from the processor 1810. For example, the inter-cell beam control device may be configured as a chip connected to the processor 1810, and the functions of the inter-cell beam control device may be realized by the control of the processor 1810.

[0273] As shown in Figure 18, the terminal device 1800 may further include a communication module 1830, an input unit 1840, a display unit 1850, a power supply 1860, and the like. Note that the terminal device 1800 does not need to include all the components shown in Figure 18. Furthermore, the terminal device 1800 may also include components not shown in Figure 18; for these, please refer to related technologies.

[0274] As shown in Figure 18, the processor 1810 may be referred to as a controller or operation control, and may include a microprocessor or other processing device and / or logic device, and the processor 1810 can receive inputs and control the operation of each component of the terminal device 1800.

[0275] Among these, the memory unit 1820 may be one or more of, for example, a buffer, fresh memory, HDD, movable medium, volatile memory, non-volatile memory, or other suitable device, and can store various types of data, as well as programs for information processing. The processor 1810 can execute the program stored in the memory unit 1820 to store or process information. The functions of the other components are the same as in the prior art, so a detailed explanation of them is omitted here. Each component of the terminal device 1800 may be realized by dedicated hardware, firmware, software, or a combination thereof, but all of them are within the scope of the present invention.

[0276] As can be seen from the above embodiment, when a terminal device receives beam settings for a non-serving cell from a network device, it can perform wireless link failure detection using a reference signal for wireless link failure detection in the network device settings, or it can perform wireless link failure detection using a reference signal for the TCI status associated with the serving cell. In this way, inter-cell beam management can detect wireless link failures in serving cells, thereby avoiding delays in RRC connection recovery and traffic interruptions, and ensuring system performance. [Examples]

[0277] An embodiment of the present invention provides a network device, which includes the inter-cell beam management device described in Example 7.

[0278] Figure 19 is a block diagram showing the system configuration of a network device in Embodiment 11 of the present invention. As shown in Figure 19, the network device 1900 may include a processor 1910 and a memory unit 1920, the memory unit 1920 being connected to the processor 1910. The memory unit 1920 can store various types of data and can also store a program 1930 for information processing. By executing the program 1930 under the control of the processor 1910, it can receive various types of information transmitted by terminal devices and transmit various types of information to terminal devices.

[0279] In one implementation, the functions of the inter-cell beam management device can be integrated into processor 1910. Processor 1910 may be configured as follows: to transmit beam settings for non-serving cells to terminal equipment; and to transmit reference signals for detecting radio link failures to terminal equipment; and / or to transmit reference signals for TCI status associated with serving cells to terminal equipment.

[0280] In another implementation, the inter-cell beam control device may be located separately from the processor 1910. For example, the inter-cell beam control device may be configured as a chip connected to the processor 1910, and the functions of the inter-cell beam control device may be realized by the control of the processor 1910.

[0281] Furthermore, as shown in Figure 19, the network device 1900 may also include a transceiver 1940, an antenna 1950, and the functions of these components are similar to those of the prior art, and therefore a detailed explanation is omitted here. Note that the network device 1900 does not need to include all the components shown in Figure 19. Also, the network device 1900 may include components not shown in Figure 19, for which prior art can be referenced.

[0282] As can be seen from the above embodiment, when a terminal device receives beam settings for a non-serving cell from a network device, it can perform wireless link failure detection using a reference signal for wireless link failure detection in the network device settings, or it can perform wireless link failure detection using a reference signal for the TCI status associated with the serving cell. In this way, inter-cell beam management can detect wireless link failures in serving cells, thereby avoiding delays in RRC connection recovery and traffic interruptions, and ensuring system performance. [Examples]

[0283] An embodiment of the present invention provides a terminal device, which includes the inter-cell beam management device described in Example 8.

[0284] Figure 20 is a block diagram showing the system configuration of a terminal device in Embodiment 12 of the present invention. As shown in Figure 20, the terminal device 2000 may include a processor 2010 and a memory unit 2020, the memory unit 2020 being connected to the processor 2010. Note that this figure is merely illustrative, and telecommunications functions or other functions may be realized by supplementing or substituting other types of configurations.

[0285] In one implementation, the functions of the inter-cell beam management device can be integrated into processor 2010. Processor 2010 may be configured as follows: it receives TCI status information of non-serving cells from the network device.

[0286] In another implementation, the inter-cell beam control device may be located separately from the processor 2010. For example, the inter-cell beam control device may be configured as a chip connected to the processor 2010, and the functions of the inter-cell beam control device may be realized by the control of the processor 2010.

[0287] As shown in Figure 20, the terminal device 2000 may further include a communication module 2030, an input unit 2040, a display unit 2050, a power supply 2060, and the like. Note that the terminal device 2000 does not need to include all the components shown in Figure 20. Furthermore, the terminal device 2000 may also include components not shown in Figure 20; for these, refer to related technologies.

[0288] As shown in Figure 20, the processor 2010 may be referred to as a controller or operation control, and may include a microprocessor or other processing device and / or logic device, and the processor 2010 can receive inputs and operate each component of the terminal device 2000.

[0289] Among these, the memory unit 2020 may be one or more of, for example, a buffer, fresh memory, HDD, movable medium, volatile memory, non-volatile memory, or other suitable device, and can store various types of data, as well as programs for information processing. The processor 2010 can store or process information by executing the program stored in the memory unit 1820. The functions of the other components are similar to those of the prior art, and a detailed explanation of them is omitted here. Each component of the terminal device 2000 can be realized by dedicated hardware, firmware, software, or a combination thereof, and all of these fall within the scope of the present invention.

[0290] As can be seen from the above embodiment, inter-cell beam management can be achieved when a terminal device receives TCI status information of a non-serving cell from a network device, and in this way, no reference signal for radio link monitoring is provided to a terminal device, and the terminal device is provided with a TCI status associated with reception including one or more downlink-only channels. [Examples]

[0291] An embodiment of the present invention provides a network device, which includes the inter-cell beam management device described in Example 9.

[0292] Figure 21 is a block diagram showing the system configuration of a network device in Embodiment 13 of the present invention. As shown in Figure 21, the network device 2100 may include a processor 2110 and a memory unit 2120, the memory unit 2120 being connected to the processor 2110. The memory unit 2120 can store various types of data and can also store a program 2130 for information processing. By executing the program 2130 under the control of the processor 2110, it can receive various types of information transmitted by terminal devices and transmit various types of information to terminal devices.

[0293] In one implementation, the functions of the inter-cell beam management device can be integrated into the processor 2110. The processor 2110 may be configured as follows, namely, to transmit TCI status information of non-serving cells to the terminal device.

[0294] In another implementation, the inter-cell beam control device may be located separately from the processor 2110. For example, the inter-cell beam control device may be configured as a chip connected to the processor 2110, and the functions of the inter-cell beam control device may be realized by the control of the processor 2110.

[0295] Furthermore, as shown in Figure 21, the network device 2100 may also include a receiver / dispenser 2140, an antenna 2150, and the functions of these components are similar to those in the prior art, so a detailed explanation is omitted here. Note that the network device 2100 does not need to include all the components shown in Figure 21. Also, the network device 2100 may include components not shown in Figure 21, for which prior art can be referenced.

[0296] As can be seen from the above embodiment, inter-cell beam management can be achieved when a terminal device receives TCI status information of a non-serving cell from a network device, and in this way, no reference signal for radio link monitoring is provided to a terminal device, and the terminal device is provided with a TCI status associated with reception including one or more downlink-only channels. [Examples]

[0297] An embodiment of the present invention provides a communication system, which includes the terminal device described in Example 10 and / or the network device described in Example 11. For specific details, please refer to the descriptions in Examples 10 and 11.

[0298] For example, the configuration of the communication system is as shown in Figure 1. The communication system 100 includes a network device 101 and a terminal device 102. The terminal device 102 may be the same as the terminal device described in Example 10, and the network device 101 may be the same as the network device described in Example 11. Here, the description of redundant information is omitted. [Examples]

[0299] An embodiment of the present invention provides a communication system, which includes the terminal device described in Example 12 and / or the network device described in Example 13. For specific details, please refer to the descriptions in Examples 12 and 13.

[0300] For example, the configuration of the communication system is as shown in Figure 1. The communication system 100 includes a network device 101 and a terminal device 102. The terminal device 102 may be the same as the terminal device described in Example 12, and the network device 101 may be the same as the network device described in Example 13. Here, we will omit the description of redundant information.

[0301] Furthermore, the above-described apparatus and method may be implemented by software or hardware, or by a combination of hardware and software. The present invention further relates to a computer-readable program as described below, that is, the program, when executed by a logic component, causes the logic component to implement the above-described apparatus or component, or to the logic component to implement each of the above-described method or step. The logic component may be, for example, an FPGA (Field Programmable Gate Array), a microprocessor, or a processor used in a computer. The present invention further relates to a storage medium storing the above-described program, for example, a hard disk, a magnetic disk, an optical hard disk, a DVD, a flash memory, etc.

[0302] Furthermore, one or more combinations of the functional blocks shown in the drawings and / or one or more combinations of functional blocks may be implemented as a general-purpose processor, digital signal processor (DSP), application-specific integrated circuit (ASIC), field-programmable gate array (FPGA) or other programmable logic component, discrete gate or transistor logic component, discrete hardware assembly or any other suitable combination for performing the functions described herein. Also, one or more combinations of the functional blocks shown in the drawings and / or one or more combinations of functional blocks may further be configured as a combination of computing devices, for example, a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors connected to a DSP by communication or any other combination of any other configuration.

[0303] Although preferred embodiments of the present invention have been described above, the present invention is not limited to such embodiments, and any modifications to the present invention that do not deviate from the spirit of the invention fall within the technical scope of the present invention.

[0304] Furthermore, the following additional information is disclosed regarding the above-mentioned embodiments.

[0305] (Note 1) (Note 1) An inter-cell beam control device, wherein the device is used in a terminal device, A first receiving unit that receives beam settings for non-serving cells from network equipment; and An apparatus including a first detection unit that performs wireless link failure detection using a reference signal for wireless link failure detection in the network device settings, or a second detection unit that performs wireless link failure detection using a reference signal for TCI status associated with a serving cell.

[0306] (Note 2) The apparatus described in Appendix 1, The first receiving unit is, A second receiving unit that receives reference signal information and / or cell information for inter-cell beam management from a network device; and / or A device including a third receiving unit that receives TCI status information of non-serving cells from a network device.

[0307] (Note 3) The apparatus described in Appendix 2, A device wherein the reference signal information and / or cell information for inter-cell beam management are information corresponding to a cell.

[0308] (Note 4) The apparatus described in Appendix 2 or 3, The reference signal for the inter-cell beam management reference signal information includes SSB and / or CSI-RS in the apparatus.

[0309] (Note 5) A device described in any one of the items in Appendix 2-4, The reference signal information for inter-cell beam management includes an SSB index and / or CSI-RS label from the non-serving cell of the apparatus.

[0310] (Note 6) The apparatus described in Appendix 2 or 3, The cell information includes a physical cell label in the apparatus.

[0311] (Note 7) The apparatus described in Appendix 2, 3, or 6, The cell information for inter-cell beam management includes the physical cell label of the non-serving cell, provided for the apparatus.

[0312] (Note 8) The apparatus described in any one of the items in Appendix 2-7, The TCI status information is unified TCI status information, TCI status information associated with PDCCH reception, or downlink TCI status information, in the device.

[0313] (Note 9) The apparatus described in any one of the items in Appendix 2-8, The TCI status information of the non-serving cell is associated with the reference signal information and / or cell information of the inter-cell beam management; or The TCI status information of the non-serving cell includes the reference signal information for the inter-cell beam management and / or the cell information for the inter-cell beam management; or The TCI status information of the non-serving cell includes one or more QCL types in the apparatus.

[0314] (Note 10) The apparatus described in Appendix 9, The QCL type is a device that applies QCL information, and the QCL information includes a serving cell index area and cell information or reference signals of non-serving cells.

[0315] (Note 11) The apparatus described in Appendix 10, further, Apparatus including a first processing unit that applies cell information or reference signals of the non-serving cell and / or ignores the serving cell index area.

[0316] (Note 12) The apparatus described in Appendix 1, The reference signal for detecting the wireless link failure is, Reference signals used by terminal devices when performing wireless link monitoring; and / or A device that includes a radio link monitoring reference signal in which the target in the failure detection resource addition change list is set to “radio link failure” or “both”.

[0317] (Note 13) The apparatus described in Appendix 12, The reference signal used by the terminal device when performing wireless link monitoring includes at least one of the following: SSB is set for the initial downlink BWP of a special cell; A special cell, an SSB set for one downlink BWP, including an SSB associated with the initial downlink BWP; and A CSI-RS device configured for one of the downlink BWPs of a special cell.

[0318] (Note 14) The apparatus described in Appendix 1, The apparatus wherein the reference signal of the TCI state associated with the serving cell is the reference signal of the active TCI state associated with the serving cell.

[0319] (Note 15) The apparatus described in Appendix 1 or 14, The device wherein the TCI state is a unified TCI state, a TCI state associated with PDCCH reception, or a downlink TCI state.

[0320] (Note 16) The apparatus described in Appendix 1, 14, or 15, The TCI state associated with the serving cell includes the reference signal of one serving cell and / or the cell information of one serving cell; or The TCI state associated with the serving cell is associated with the reference signal of one serving cell in the apparatus.

[0321] (Note 17) The apparatus described in Appendix 16, The TCI state associated with the serving cell is associated with the reference signal of one serving cell. An apparatus comprising a TCI state associated with the serving cell that includes one or more QCL types.

[0322] (Note 18) The apparatus described in Appendix 17, The QCL type is a device that applies QCL information, and the QCL information includes a serving cell index area and cell information or reference signals of non-serving cells.

[0323] (Note 19) The apparatus described in Appendix 18, further, Apparatus including a second processing unit that applies cell information or reference signals of the non-serving cell and / or ignores the serving cell index area.

[0324] (Note 20) The apparatus described in any one of the appendices 1 and 14-19, The second detection unit is a device that uses a reference signal of the TCI state associated with the serving cell to detect wireless link failures until the terminal device communicates with the network using the beam of a non-serving cell associated with the serving cell.

[0325] (Note 21) The apparatus described in Appendix 20, The beam of the non-serving cell is associated with one serving cell in the apparatus.

[0326] (Note 22) The apparatus described in Appendix 21, The beam of the non-serving cell is associated with one serving cell. The beam of the non-serving cell is included in the setting of one serving cell; or The apparatus includes the fact that the beam of the non-serving cell contains cell information of one serving cell.

[0327] (Note 23) The apparatus described in any one of the appendices 20-22, The terminal device communicates with the network using the beam of a non-serving cell associated with the serving cell. The network device includes activating the TCI state associated with the beam by L1 information and / or MAC CE.

[0328] (Note 24) The apparatus described in any one of the appendices 1-23, The non-serving cell is an apparatus associated with the serving cell.

[0329] (Note 25) The apparatus described in any one of the appendices 1-24, When carrier aggregation is set on the terminal device, the serving cell includes special cells and / or primary cells. When a dual connection is configured for the terminal device, the serving cell includes at least one of a special cell, a primary cell of a primary cell group, and a primary / secondary cell of a secondary cell group. A terminal device in which, when carrier aggregation and dual connection are configured, the serving cell includes at least one of a special cell, a primary cell of a primary cell group, and a primary / secondary cell of a secondary cell group.

[0330] (Note 26) An inter-cell beam management device, wherein the device is used in a network device, and the device is A first transmitting unit that transmits the beam settings of a non-serving cell to a terminal device; and A second transmitting unit that transmits a reference signal to the terminal device for detecting wireless link failure; and / or A device including a third transmitting unit that transmits a reference signal of the TCI status associated with a serving cell to a terminal device.

[0331] (Note 27) The apparatus described in Appendix 26, The first transmission unit is, A fourth transmitting unit that transmits reference signal information for inter-cell beam management and / or cell information for inter-cell beam management to a terminal device; and / or A device including a fifth transmitting unit that transmits TCI status information of a non-serving cell to a terminal device.

[0332] (Note 28) The apparatus described in Appendix 27, A device wherein the reference signal information and / or cell information for inter-cell beam management are information corresponding to a cell.

[0333] (Note 29) The apparatus described in Appendix 27 or 28, The reference signal for the inter-cell beam management reference signal information includes SSB and / or CSI-RS in the apparatus.

[0334] (Note 30) The apparatus described in any one of the appendices 27-29, The reference signal information for inter-cell beam management includes an SSB index and / or CSI-RS label from the non-serving cell of the apparatus.

[0335] (Note 31) The apparatus described in Appendix 27 or 28, The cell information includes a physical cell label in the apparatus.

[0336] (Note 32) The apparatus described in Appendix 27, 28, or 31, The cell information for inter-cell beam management includes the physical cell label of the non-serving cell, provided for the apparatus.

[0337] (Note 33) The apparatus described in any one of the appendices 27-32, The TCI status information is unified TCI status information, TCI status information associated with PDCCH reception, or downlink TCI status information, in the device.

[0338] (Note 34) The apparatus described in any one of the appendices 27-33, The TCI status information of the non-serving cell is associated with the reference signal information and / or cell information of the inter-cell beam management; or The TCI status information of the non-serving cell includes the reference signal information for the inter-cell beam management and / or the cell information for the inter-cell beam management; or The TCI status information of the non-serving cell includes one or more QCL types in the apparatus.

[0339] (Note 35) The apparatus described in Appendix 34, The QCL type is a device that applies QCL information, and the QCL information includes a serving cell index area and cell information or reference signals of non-serving cells.

[0340] (Note 36) The apparatus described in Appendix 26, The reference signal for detecting the wireless link failure is, Reference signals used by terminal devices when performing wireless link monitoring; and / or A device that includes a radio link monitoring reference signal in which the target in the failure detection resource addition change list is set to “radio link failure” or “both”.

[0341] (Note 37) The apparatus described in Appendix 36, The reference signal used by the terminal device when performing wireless link monitoring includes at least one of the following: SSB is set for the initial downlink BWP of a special cell; A special cell, an SSB set for one downlink BWP, including an SSB associated with the initial downlink BWP; and A CSI-RS device configured for one of the downlink BWPs of a special cell.

[0342] (Note 38) The apparatus described in Appendix 37, The apparatus wherein the reference signal of the TCI state associated with the serving cell is the reference signal of the active TCI state associated with the serving cell.

[0343] (Note 39) The apparatus described in Appendix 26 or 38, The device wherein the TCI state is a unified TCI state, a TCI state associated with PDCCH reception, or a downlink TCI state.

[0344] (Note 40) The apparatus described in Appendix 26, 38, or 39, The TCI state associated with the serving cell includes the reference signal of one serving cell and / or the cell information of one serving cell; or The TCI state associated with the serving cell is associated with the reference signal of one serving cell in the apparatus.

[0345] (Note 41) The apparatus described in Appendix 40, The TCI state associated with the serving cell is associated with the reference signal of one serving cell. An apparatus comprising a TCI state associated with the serving cell that includes one or more QCL types.

[0346] (Note 42) The apparatus described in Appendix 41, The QCL type is a device that applies QCL information, and the QCL information includes a serving cell index area and cell information or reference signals of non-serving cells.

[0347] (Note 43) An inter-cell beam control device, wherein the device is used in a terminal device, A device including a fourth receiving unit that receives TCI status information of non-serving cells from a network device.

[0348] (Note 44) The apparatus described in Appendix 43, The TCI status information is unified TCI status information, TCI status information associated with PDCCH reception, or downlink TCI status information, in the device.

[0349] (Note 45) The apparatus described in Appendix 43 or 44, The TCI status information of the non-serving cell is associated with the reference signal information and / or cell information of the inter-cell beam management; or The TCI status information of the non-serving cell includes the reference signal information for the inter-cell beam management and / or the cell information for the inter-cell beam management; or The TCI status information of the non-serving cell includes one or more QCL types in the apparatus.

[0350] (Note 46) The apparatus described in Appendix 45, The QCL type is a device that applies QCL information, and the QCL information includes a serving cell index area and cell information or reference signals of non-serving cells.

[0351] (Note 47) The apparatus described in Appendix 46, further, Apparatus including a third processing unit that applies cell information or reference signals of the non-serving cell and / or ignores the serving cell index area.

[0352] (Note 48) An inter-cell beam management device, wherein the device is used in a network device, and the device is A device including a sixth transmitting unit that transmits TCI status information of a non-serving cell to a terminal device.

[0353] (Note 49) The apparatus described in Appendix 48, The TCI status information is unified TCI status information, TCI status information associated with PDCCH reception, or downlink TCI status information, in the device.

[0354] (Note 50) The apparatus described in Appendix 48 or 49, The TCI status information of the non-serving cell is associated with the reference signal information and / or cell information of the inter-cell beam management; or The TCI status information of the non-serving cell includes the reference signal information for the inter-cell beam management and / or the cell information for the inter-cell beam management; or The TCI status information of the non-serving cell includes one or more QCL types in the apparatus.

[0355] (Note 51) The apparatus described in Appendix 50, The QCL type is a device that applies QCL information, and the QCL information includes a serving cell index area and cell information or reference signals of non-serving cells.

[0356] (Note 52) The apparatus described in Appendix 51, The terminal device applies cell information or reference signals of the non-serving cell and / or ignores the serving cell index area.

[0357] (Note 53) A terminal device, The aforementioned terminal device includes the device described in any one of the items in Appendix 1-25.

[0358] (Note 54) Network device, The aforementioned network device includes the device described in any one of the items in Appendix 26-42.

[0359] (Note 55) A terminal device, The aforementioned terminal device includes the device described in any one of the appendices 43-46.

[0360] (Note 56) Network device, The aforementioned network device includes the device described in any one of the items in Appendix 47-51.

[0361] (Note 57) It is a communication system, The aforementioned communication system includes the terminal device described in Appendix 53 and / or the network device described in Appendix 54.

[0362] (Note 58) It is a communication system, The aforementioned communication system is a communication system that includes the terminal device described in Appendix 55 and / or the network device described in Appendix 56.

[0363] (Note 2) (Note 1) A method for managing inter-cell beams, wherein the method is used in a terminal device, and the method is Receive beam settings for non-serving cells from network equipment; and A method comprising performing wireless link failure detection using a reference signal for wireless link failure detection in the network device settings, or performing wireless link failure detection using a reference signal for TCI status associated with a serving cell.

[0364] (Note 2) The method described in Appendix 1, Receiving the beam settings of non-serving cells from the aforementioned network device means that Receive reference signal information and / or cell information for inter-cell beam management from the network device; and / or A method comprising receiving TCI status information of a non-serving cell from a network device.

[0365] (Note 3) The method described in Appendix 2, A method wherein the reference signal information and / or cell information for inter-cell beam management are information corresponding to a cell.

[0366] (Note 4) The method described in Appendix 2 or 3, The method includes an SSB and / or CSI-RS as the reference signal for the inter-cell beam management reference signal information.

[0367] (Note 5) A method described in any one of the items in Appendix 2-4, The inter-cell beam management reference signal information includes an SSB index and / or CSI-RS label from the non-serving cell, in a method.

[0368] (Note 6) The method described in Appendix 2 or 3, The cell information includes a physical cell label, and the method is described in this way.

[0369] (Note 7) The method described in Appendix 2, 3, or 6, A method wherein the cell information for inter-cell beam management includes the physical cell identifier of the non-serving cell.

[0370] (Note 8) A method described in any one of the items in Appendix 2-7, The method wherein the TCI status information is unified TCI status information, TCI status information associated with PDCCH reception, or downlink TCI status information.

[0371] (Note 9) A method described in any one of the items in Appendix 2-8, The TCI status information of the non-serving cell is associated with the reference signal information and / or cell information of the inter-cell beam management; or The TCI status information of the non-serving cell includes the reference signal information for the inter-cell beam management and / or the cell information for the inter-cell beam management; or A method wherein the TCI status information of the non-serving cell includes one or more QCL types.

[0372] (Note 10) The method described in Appendix 9, A method wherein the QCL type applies QCL information, and the QCL information includes a serving cell index area and cell information or reference signals of non-serving cells.

[0373] (Note 11) The method described in Appendix 10, further, A method comprising applying cell information or reference signals of the non-serving cell to the terminal device and / or ignoring the serving cell index area.

[0374] (Note 12) The method described in Appendix 1, The reference signal for detecting the wireless link failure is, Reference signals used by terminal devices when performing wireless link monitoring; and / or A method comprising a radio link monitoring reference signal in which the objective in the failure detection resource addition change list is set to “radio link failure” or “both”.

[0375] (Note 13) The method described in Appendix 12, The reference signal used by the terminal device when performing wireless link monitoring includes at least one of the following: SSB is set for the initial downlink BWP of a special cell; A special cell, an SSB set for one downlink BWP, including an SSB associated with the initial downlink BWP; and A method where CSI-RS is configured for one downlink BWP of a special cell.

[0376] (Note 14) The method described in Appendix 1, The reference signal for the TCI state associated with the serving cell is the reference signal for the active TCI state associated with the serving cell, in this method.

[0377] (Note 15) The method described in Appendix 1 or 14, The method wherein the TCI state is a unified TCI state, a TCI state associated with PDCCH reception, or a downlink TCI state.

[0378] (Note 16) The method described in Appendix 1, 14, or 15, The TCI state associated with the serving cell includes the reference signal of one serving cell and / or the cell information of one serving cell; or A method wherein the TCI state associated with the serving cell is associated with the reference signal of one serving cell.

[0379] (Note 17) The method described in Appendix 16, The TCI state associated with the serving cell is associated with the reference signal of one serving cell. A method comprising the TCI state associated with the serving cell comprising one or more QCL types.

[0380] (Note 18) The method described in Appendix 17, A method wherein the QCL type applies QCL information, and the QCL information includes a serving cell index area and cell information or reference signals of non-serving cells.

[0381] (Note 19) The method described in Appendix 18, further, A method comprising applying cell information or reference signals of the non-serving cell to the terminal device and / or ignoring the serving cell index area.

[0382] (Note 20) The method described in any one of the appendices 1, 14-19, Using a reference signal of the TCI status associated with the serving cell to detect wireless link failures is: A method comprising detecting a wireless link failure using a reference signal of the TCI state associated with a serving cell until a terminal device communicates with the network using the beam of a non-serving cell associated with the serving cell.

[0383] (Note 21) The method described in Appendix 20, The beam of the non-serving cell is associated with one serving cell, in a manner.

[0384] (Note 22) The method described in Appendix 21, The beam of the non-serving cell is associated with one serving cell. The beam of the non-serving cell is included in the setting of one serving cell; or A method comprising the beam of the non-serving cell containing cell information of one serving cell.

[0385] (Note 23) A method described in any one of the appendices 20-22, The terminal device communicates with the network using the beam of a non-serving cell associated with the serving cell. A method comprising the network device activating a TCI state associated with the beam by L1 information and / or MAC CE.

[0386] (Note 24) A method described in any one of the appendices 1-23, The non-serving cell is associated with the serving cell, by a method.

[0387] (Note 25) A method described in any one of the appendices 1-24, When carrier aggregation is set on the terminal device, the serving cell includes special cells and / or primary cells. When a dual connection is configured for the terminal device, the serving cell includes at least one of a special cell, a primary cell of a primary cell group, and a primary / secondary cell of a secondary cell group. A method wherein, when carrier aggregation and dual connection are configured in the terminal device, the serving cell includes at least one of a special cell, a primary cell of a primary cell group, and a primary secondary cell of a secondary cell group.

[0388] (Note 26) A method for managing inter-cell beams, wherein the method is used in a network device, and the method is Transmit beam settings for non-serving cells to terminal devices; and Transmit a reference signal to the terminal device for detecting wireless link failure; and / or A method comprising transmitting a reference signal for the TCI status associated with a serving cell to a terminal device.

[0389] (Note 27) The method described in Appendix 26, Transmitting the beam settings of a non-serving cell to the aforementioned terminal device is: Transmits reference signal information and / or cell information for inter-cell beam management to the terminal device; and / or A method comprising transmitting TCI status information of a non-serving cell to a terminal device.

[0390] (Note 28) The method described in Appendix 27, A method wherein the reference signal information and / or cell information for inter-cell beam management are information corresponding to a cell.

[0391] (Note 29) The method described in Appendix 27 or 28, The method includes an SSB and / or CSI-RS as the reference signal for the inter-cell beam management reference signal information.

[0392] (Note 30) A method described in any one of the appendices 27-29, The inter-cell beam management reference signal information includes an SSB index and / or CSI-RS label from the non-serving cell, in a method.

[0393] (Note 31) The method described in Appendix 27 or 28, The cell information includes a physical cell label, and the method is described in this way.

[0394] (Note 32) The method described in Appendix 27, 28, or 30, A method wherein the cell information for inter-cell beam management includes the physical cell identifier of the non-serving cell.

[0395] (Note 33) A method according to any one of the items in Appendix 27-32, The method wherein the TCI status information is unified TCI status information, TCI status information associated with PDCCH reception, or downlink TCI status information.

[0396] (Note 34) A method according to any one of the items in Appendix 27-33, The TCI status information of the non-serving cell is associated with the reference signal information and / or cell information of the inter-cell beam management; or The TCI status information of the non-serving cell includes the reference signal information for the inter-cell beam management and / or the cell information for the inter-cell beam management; or A method wherein the TCI status information of the non-serving cell includes one or more QCL types.

[0397] (Note 35) The method described in Appendix 34, A method wherein the QCL type applies QCL information, and the QCL information includes a serving cell index area and cell information or reference signals of non-serving cells.

[0398] (Note 36) The method described in Appendix 26, The reference signal for detecting the wireless link failure is, Reference signals used by terminal devices when performing wireless link monitoring; and / or A method comprising a radio link monitoring reference signal in which the objective in the failure detection resource addition change list is set to “radio link failure” or “both”.

[0399] (Note 37) The method described in Appendix 36, The reference signal used by the terminal device when performing wireless link monitoring includes at least one of the following: SSB is set for the initial downlink BWP of a special cell; A special cell, an SSB set for one downlink BWP, including an SSB associated with the initial downlink BWP; and A method where CSI-RS is configured for one downlink BWP of a special cell.

[0400] (Note 38) The method described in Appendix 26, The reference signal for the TCI state associated with the serving cell is the reference signal for the active TCI state associated with the serving cell, in this method.

[0401] (Note 39) The method described in Appendix 26 or 38, The method wherein the TCI state is a unified TCI state, a TCI state associated with PDCCH reception, or a downlink TCI state.

[0402] (Note 40) The method described in Appendix 26, 38, or 39, The TCI state associated with the serving cell includes the reference signal of one serving cell and / or the cell information of one serving cell; or A method wherein the TCI state associated with the serving cell is associated with the reference signal of one serving cell.

[0403] (Note 41) The method described in Appendix 40, The TCI state associated with the serving cell is associated with the reference signal of one serving cell. A method comprising the TCI state associated with the serving cell comprising one or more QCL types.

[0404] (Note 42) The method described in Appendix 41, A method wherein the QCL type applies QCL information, and the QCL information includes a serving cell index area and cell information or reference signals of non-serving cells.

[0405] (Note 43) A method for managing inter-cell beams, wherein the method is used in a terminal device, and the method is A method comprising receiving TCI status information of a non-serving cell from a network device.

[0406] (Note 44) The method described in Appendix 43, The method wherein the TCI status information is unified TCI status information, TCI status information associated with PDCCH reception, or downlink TCI status information.

[0407] (Note 45) The method described in Appendix 42 or 43, The TCI status information of the non-serving cell is associated with the reference signal information and / or cell information of the inter-cell beam management; or The TCI status information of the non-serving cell includes the reference signal information for the inter-cell beam management and / or the cell information for the inter-cell beam management; or A method wherein the TCI status information of the non-serving cell includes one or more QCL types.

[0408] (Note 46) The method described in Appendix 45, A method wherein the QCL type applies QCL information, and the QCL information includes a serving cell index area and cell information or reference signals of non-serving cells.

[0409] (Note 47) The method described in Appendix 46, further, A method comprising applying cell information or reference signals of the non-serving cell to the terminal device and / or ignoring the serving cell index area.

[0410] (Note 48) A method for managing inter-cell beams, wherein the method is used in a network device, and the method is A method comprising transmitting TCI status information of a non-serving cell to a terminal device.

[0411] (Note 49) The method described in Appendix 48, The method wherein the TCI status information is unified TCI status information, TCI status information associated with PDCCH reception, or downlink TCI status information.

[0412] (Note 50) The method described in Appendix 48 or 49, The TCI status information of the non-serving cell is associated with the reference signal information and / or cell information of the inter-cell beam management; or The TCI status information of the non-serving cell includes the reference signal information for the inter-cell beam management and / or the cell information for the inter-cell beam management; or A method wherein the TCI status information of the non-serving cell includes one or more QCL types.

[0413] (Note 51) The method described in Appendix 50, A method wherein the QCL type applies QCL information, and the QCL information includes a serving cell index area and cell information or reference signals of non-serving cells.

[0414] (Note 52) The method described in Appendix 51, A method for the terminal device to apply cell information or reference signals of the non-serving cell and / or to ignore the serving cell index area.

Claims

1. An inter-cell beam management device that can be applied to network devices, Including the transmitter, The aforementioned transmitter is Transmit beam setting information for non-serving cells to terminal devices; and A reference signal of the TCI status associated with the serving cell is transmitted to the terminal device. It is configured in such a way, The beam setting information for the non-serving cell is as follows: Reference signal information for inter-cell beam management and cell information for inter-cell beam management; and / or TCI status information of the non-serving cell Includes, The TCI status information of the non-serving cell is associated with the reference signal information and cell information for inter-cell beam management. The TCI status information of the non-serving cell includes one or more QCL types (qcl-Type), The aforementioned QCL type includes QCL information (QCL-Info), The aforementioned QCL information includes a serving cell index field, and is an inter-cell beam management device.

2. An inter-cell beam control device according to claim 1, An inter-cell beam management device, wherein the reference signal information for inter-cell beam management includes an SSB index and / or CSI-RS identifier (ID) from the non-serving cell.

3. An inter-cell beam control device according to claim 1, An inter-cell beam management device, wherein the cell information for inter-cell beam management includes physical cell labels of the non-serving cells.

4. An inter-cell beam control device according to claim 1, An inter-cell beam management device wherein the TCI status information of the non-serving cell further includes reference signal information for inter-cell beam management and / or cell information for inter-cell beam management.

5. An inter-cell beam control device according to claim 1, An inter-cell beam management device wherein the QCL information further includes cell information or reference signals of the non-serving cells.

6. An inter-cell beam control device according to claim 1, An inter-cell beam management device in which the reference signal of the TCI state associated with the serving cell is the reference signal of the active TCI state associated with the serving cell.

7. An inter-cell beam management device applicable to terminal equipment, A receiver configured to receive beam configuration information for non-serving cells from a network device; and Includes a processor configured to perform measurements using a reference signal of the TCI state associated with the serving cell, The beam setting information for the non-serving cell is as follows: Reference signal information for inter-cell beam management and cell information for inter-cell beam management; and / or TCI status information of the non-serving cell Includes, The TCI status information of the non-serving cell is associated with the reference signal information and cell information for inter-cell beam management. The TCI status information of the non-serving cell includes one or more QCL types (qcl-Type), The aforementioned QCL type includes QCL information (QCL-Info), The aforementioned QCL information includes a serving cell index field, and is an inter-cell beam management device.

8. An inter-cell beam control device according to claim 7, An inter-cell beam management device, wherein the reference signal information for inter-cell beam management includes an SSB index and / or CSI-RS identifier (ID) from the non-serving cell.

9. An inter-cell beam control device according to claim 7, An inter-cell beam management device, wherein the cell information for inter-cell beam management includes physical cell labels of the non-serving cells.

10. An inter-cell beam control device according to claim 7, An inter-cell beam management device wherein the TCI status information of the non-serving cell further includes reference signal information for inter-cell beam management and / or cell information for inter-cell beam management.

11. An inter-cell beam control device according to claim 7, Inter-cell beam management device, wherein the QCL information further includes cell information or reference signals of non-serving cells.

12. An inter-cell beam control device according to claim 11, An inter-cell beam management device, wherein the processor is further configured to apply cell information or reference signals of the non-serving cells and / or ignore the serving cell indexing area.

13. An inter-cell beam control device according to claim 7, An inter-cell beam management device in which the reference signal of the TCI state associated with the serving cell is the reference signal of the active TCI state associated with the serving cell.

14. An inter-cell beam control device according to claim 7, The non-serving cell is an inter-cell beam management device associated with the serving cell.

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