CN116325605B

CN116325605B - TCI status list updating method, device, equipment and storage medium

Info

Publication number: CN116325605B
Application number: CN202080105863.9A
Authority: CN
Inventors: 胡荣贻
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2025-02-28
Anticipated expiration: 2040-12-18
Also published as: CN116325605A; WO2022126663A1

Abstract

The embodiment of the application provides a TCI state list updating method, a device, equipment and a storage medium, wherein network equipment sends first indication information to terminal equipment, the first indication information is used for updating the TCI state list, the terminal equipment can determine the first TCI state list according to the first indication information, the first TCI state list comprises a first activated TCI state, the first activated TCI state comprises reference signal configuration information, the reference signal configuration information is used for configuring a short period reference signal, and then switching adjustment time of the TCI state can be determined according to the first TCI state list. In the technical scheme, the reference signal configuration information is used for configuring the short-period reference signal, so that the interruption of data transmission of the current serving cell in TCI state switching is shortened, the switching efficiency is improved, and the throughput loss is reduced.

Description

TCI state list updating method, device, equipment and storage medium

Technical Field

The embodiment of the application relates to the technical field of communication, in particular to a method, a device, equipment and a storage medium for updating a transmission configuration indication TCI state list.

Background

In the new radio, NR (new radio) system, the characteristics of the transmission environment corresponding to the data transmission are represented by quasi co-sited information (quasi co-location information, QCL Info), and when the network side transmits the downlink control channel or the data channel, the corresponding QCL status information is indicated to the terminal by transmitting the configuration indication (transmission configuration indicator, TCI) status, so that the terminal improves the receiving algorithm accordingly, and further improves the receiving performance.

In the prior art, the network may configure updates of the TCI state. Specifically, the network sends an activation instruction to the terminal, where the activation instruction is used to activate switching of the TCI state and configuration of a new reference signal, and correspondingly, after receiving the activation instruction, the terminal adjusts corresponding new beam information according to the new reference signal within a preset time interval, and when it is determined that the first reference signal is received and processed, the terminal receives a downlink control signal by using the updated TCI state, where the preset time interval is related to a period and a time offset of the new reference signal.

However, in the above manner, the terminal needs to receive and process the first reference signal within the preset time interval, and then receive the downlink control signal by using the updated TCI state, and if the period of the new reference signal is long, the terminal needs to be unable to receive and transmit data for a long period of time, which has problems of time waste and large throughput loss of the terminal.

Disclosure of Invention

The embodiment of the application provides a TCI state list updating method, a device, equipment and a storage medium, which are used for solving the problems of time waste and high terminal throughput loss existing in the existing TCI state list updating process.

In a first aspect, an embodiment of the present application provides a method for updating a TCI state list, including:

A first TCI state list is determined, the first TCI state list including a first active TCI state including reference signal configuration information for configuring short period reference signals.

In a second aspect, an embodiment of the present application provides a TCI state list updating method, including:

Receiving first indication information from a network device, wherein the first indication information is used for updating a TCI state list;

Determining a first TCI state list according to the first indication information, wherein the first TCI state list comprises a first activated TCI state, and the first activated TCI state comprises reference signal configuration information which is used for configuring short-period reference signals;

and determining the switching adjustment time of the TCI state according to the first TCI state list.

In a third aspect, an embodiment of the present application provides a TCI state list updating apparatus, including:

The processing module is used for determining a first TCI state list, wherein the first TCI state list comprises a first activated TCI state, the first activated TCI state comprises reference signal configuration information, and the reference signal configuration information is used for configuring short-period reference signals.

In a fourth aspect, an embodiment of the present application provides a TCI state list updating apparatus, including:

a receiving module, configured to receive first indication information from a network device, where the first indication information is used to update a TCI status list;

The processing module is used for determining a first TCI state list according to the first indication information, wherein the first TCI state list comprises a first activated TCI state and reference signal configuration information, and the reference signal configuration information is used for configuring short-period reference signals;

And the processing module is also used for determining the switching adjustment time of the TCI state according to the first TCI state list.

In a fifth aspect, an embodiment of the present application provides a network device, including:

the processor, the memory, the transceiver and the interface for communication with the terminal device;

the memory stores computer-executable instructions;

The processor executes computer-executable instructions stored in the memory, causing the processor to perform the method provided in the first aspect above.

Alternatively, the processor may be a chip.

In a sixth aspect, an embodiment of the present application provides a terminal device, including:

a processor, a memory, an interface for communication between the transceiver and the network device;

the memory stores computer-executable instructions;

the processor executes computer-executable instructions stored in the memory to cause the processor to perform the method provided in the second aspect above.

Alternatively, the processor may be a chip.

In a seventh aspect, embodiments of the present application may provide a computer-readable storage medium having stored therein computer-executable instructions for performing the method provided in the first aspect when the computer-executable instructions are executed by a processor.

In an eighth aspect, embodiments of the present application may provide a computer-readable storage medium having stored therein computer-executable instructions for performing the method provided in the second aspect when the computer-executable instructions are executed by a processor.

In a ninth aspect, an embodiment of the application provides a program for performing the method as provided in the first aspect, when the program is executed by a processor.

In a tenth aspect, embodiments of the present application provide a program for performing the method as provided in the second aspect when the program is executed by a processor.

In an eleventh aspect, embodiments of the present application provide a computer program product comprising program instructions for implementing the method as provided in the first aspect.

In a twelfth aspect, embodiments of the present application provide a computer program product comprising program instructions for implementing a method as provided in the second aspect.

In a thirteenth aspect, an embodiment of the present application provides a chip, including a processing module and a communication interface, where the processing module is capable of executing the method provided in the first aspect.

Further, the chip further includes a memory module (e.g., a memory) for storing instructions, and the processing module is configured to execute the instructions stored in the memory module, and execution of the instructions stored in the memory module causes the processing module to perform the method provided in the first aspect.

In a fourteenth aspect, an embodiment of the present application provides a chip, including a processing module and a communication interface, where the processing module is capable of executing the method provided in the second aspect.

Further, the chip further comprises a memory module (e.g. a memory) for storing instructions, the processing module for executing the instructions stored by the memory module, and execution of the instructions stored in the memory module causes the processing module to perform the method provided in the second aspect.

According to the TCI state list updating method, device, equipment and storage medium, the network equipment sends first indication information to the terminal equipment, the first indication information is used for updating the TCI state list, the terminal equipment can determine the first TCI state list according to the first indication information, the first TCI state list comprises a first activated TCI state, the first activated TCI state comprises reference signal configuration information, the reference signal configuration information is used for configuring short-period reference signals, and switching adjustment time of the TCI state can be determined according to the first TCI state list. In the technical scheme, the reference signal configuration information is used for configuring the short-period reference signal, namely, the reference signal corresponding to the first activated TCI state included in the first TCI state list is configured with a short period, so that the interruption of data transmission to the current service cell in TCI state switching is shortened, the switching efficiency is improved, and the throughput loss is reduced.

Drawings

Fig. 1 is a schematic structural diagram of a communication system according to an embodiment of the present application;

fig. 2 is a schematic diagram of a TCI state configuration flow of PDSCH;

fig. 3 is a schematic diagram illustrating a distribution of a handover adjustment time when a UE performs TCI state handover;

FIG. 4 is an interactive schematic diagram of a first embodiment of a TCI status list update method provided by the present application;

FIG. 5 is a schematic flow chart of a second embodiment of a TCI status list update method according to the present application;

fig. 6A is a schematic diagram of determining a TCI state switching adjustment time by using 1 CSI-RS in an embodiment of the present application;

Fig. 6B is a schematic diagram of determining TCI state switching adjustment time by using multiple CSI-RS in an embodiment of the present application;

fig. 7 is a schematic flow chart of a third embodiment of a TCI state list updating method provided by the present application;

FIG. 8 is a schematic diagram of determining TCI state switch adjustment time by using a reference signal of a target period according to an embodiment of the present application;

FIG. 9 is a flowchart illustrating a TCI status list update method according to a fourth embodiment of the present application;

FIG. 10 is a schematic diagram of determining TCI state switch adjustment time using 1 or more TRSs in an embodiment of the application;

FIG. 11 is a schematic diagram of determining a switching adjustment time of a TCI state by using a fixed delay interval in an embodiment of the present application;

fig. 12 is a schematic structural diagram of a TCI status list updating apparatus according to an embodiment of the present application;

fig. 13 is a schematic structural diagram of a second embodiment of a TCI state list updating apparatus according to the present application;

Fig. 14 is a schematic structural diagram of an embodiment of a network device according to the present application;

fig. 15 is a schematic structural diagram of an embodiment of a terminal device provided by the present application.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The terms first, second and the like in the description of embodiments of the application, in the claims and in the above-described figures, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the application described herein may be implemented in other sequences than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The TCI state list updating method provided by the following embodiments of the present application is applicable to a communication system. Fig. 1 is a schematic structural diagram of a communication system according to an embodiment of the present application. As shown in fig. 1, the communication system may include a network device 110 and a plurality of terminal devices 120 located within a coverage area of the network device 110. Fig. 1 shows an exemplary network device 110 and two terminal devices 120.

Alternatively, the communication system may include a plurality of network devices 110, and each network device may include other number of terminal devices 120 in a coverage area of the network device, and the number of network devices 110 and terminal devices 120 included in the communication system is not limited in the embodiment of the present application.

As shown in fig. 1, the terminal device 120 is connected to the network device 110 in a wireless manner. For example, unlicensed spectrum may be used for wireless communications between network device 110 and multiple terminal devices 120.

Alternatively, a direct terminal (D2D) communication may be performed between the terminal devices 120.

It should be understood that fig. 1 is only a schematic diagram, and other network devices, such as a core network device, a wireless relay device, and a wireless backhaul device, or other network entities, such as a network controller, a mobility management entity, etc., may be further included in the communication system, and embodiments of the present application are not limited thereto.

The technical scheme of the embodiment of the application can be applied to various communication systems, such as a global system for mobile communications (global system of mobile communication, GSM) system, a code division multiple access (code division multiple access, CDMA) system, a wideband code division multiple access (wideband code division multiple access, WCDMA) system, a universal packet radio service (GENERAL PACKET radio service, GPRS), a long term evolution (long term evolution, LTE) system, an LTE frequency division duplex (frequency division duplex, FDD) system, an LTE time division duplex (time division duplex, TDD) system, an advanced long term evolution (advanced long term evolution, LTE-A) system, a New Radio (NR) system, an evolution system of the NR system, an LTE (LTE-based access to unlicensed spectrum, LTE-U) system on an unlicensed frequency band, an NR (NR-based access to unlicensed spectrum, NR-U) system on an unlicensed frequency band, a universal mobile communication system (universal mobile telecommunication system, UMTS), a global interconnection microwave access (worldwide interoperability for microwave access, wiMAX) communication system, a wireless local area network (wireless local area networks, WLAN), a wireless fidelity (WIRELESS FIDELITY, wiFi), a next generation communication system or other communication systems and the like.

Generally, the number of connections supported by the conventional communication system is limited and easy to implement, however, as the communication technology advances, the mobile communication system will support not only conventional communication but also, for example, device-to-device (D2D) communication, machine-to-machine (machine to machine, M2M) communication, machine type communication (MACHINE TYPE communication, MTC), inter-vehicle (vehicle to vehicle, V2V) communication, and the like, and the embodiments of the present application can also be applied to these communication systems.

The system architecture and the service scenario described in the embodiments of the present application are for more clearly describing the technical solution provided in the embodiments of the present application, and do not constitute a limitation on the technical solution provided in the embodiments of the present application, and those skilled in the art can know that, with the evolution of the network architecture and the appearance of a new service scenario, the technical solution provided in the embodiments of the present application is equally applicable to similar technical problems.

The network device involved in the embodiment of the present application may be a common base station (such as NodeB or eNB or gNB), a new radio controller (new radio controller, NR controller), a centralized network element (centralized unit), a new radio base station, a remote radio module, a micro base station, a relay (relay), a distributed network element (distributed unit), a transmission and reception point (transmission reception point, TRP), a transmission point (transmission point, TP), or any other device. The embodiment of the application does not limit the specific technology and the specific equipment form adopted by the network equipment. For convenience of description, in all embodiments of the present application, the above-mentioned apparatus for providing a wireless communication function for a terminal device is collectively referred to as a network device.

In the embodiment of the application, the terminal device may be any terminal, for example, the terminal device may be a user device for machine type communication. That is, the terminal device may also be referred to as a User Equipment (UE), a Mobile Station (MS), a mobile terminal (terminal), etc., which may communicate with one or more core networks via a radio access network (radio access network, RAN), e.g., the terminal device may be a mobile phone (or "cellular" phone), a computer with a mobile terminal, etc., e.g., the terminal device may also be a portable, pocket, hand-held, computer-built-in or vehicle-mounted mobile device that exchanges voice and/or data with the radio access network. The embodiment of the application is not particularly limited.

Alternatively, the network devices and terminal devices may be deployed on land, including indoor or outdoor, hand-held or vehicle-mounted, on water, on air planes, balloons, and satellites. The embodiment of the application does not limit the application scenes of the network equipment and the terminal equipment.

Optionally, communication between the network device and the terminal device and between the terminal device and the terminal device may be performed through a licensed spectrum (licensed spectrum), communication may be performed through an unlicensed spectrum (unlicensed spectrum), and communication may also be performed through both the licensed spectrum and the unlicensed spectrum. Communication between the network device and the terminal device and between the terminal device and the terminal device may be performed through a frequency spectrum of 7 gigahertz (GHz) or less, may be performed through a frequency spectrum of 7GHz or more, and may be performed using a frequency spectrum of 7GHz or less and a frequency spectrum of 7GHz or more simultaneously. The embodiment of the application does not limit the frequency spectrum resources used between the network equipment and the terminal equipment.

In the embodiments of the present application, "a plurality" means two or more. "and/or" describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate that there are three cases of a alone, a and B together, and B alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.

The following first describes some related techniques related to embodiments of the present application:

quasi co-location (QCl, QCl-collocation. Quasi)

Quasi co-location refers to signals having the same channel characteristics for different channels, which can be assumed to originate from the same transmission source. The QCL configuration may include a variety of different signal types, such as channel state information-reference signals (CHANNEL STATE information-REFERENCE SIGNALING, CSI-RS) or synchronization signal blocks (synchronous signal block, SSB) or Sounding REFERENCE SIGNAL (SRS). The network side device may configure its corresponding QCL configuration for different beams. The network side device may change the beam in which the terminal device operates by changing the QCL configuration of the terminal device.

Transmission Configuration Indication (TCI) state

In a communication system, a terminal device and a network device can perform information transmission. Specifically, when the terminal device receives the signal, the receiving algorithm can be improved by utilizing the transmission environment characteristic corresponding to the data transmission, so as to improve the receiving performance. For example, the terminal device may utilize the statistical properties of the channel to optimize the design and parameters of the channel estimator.

In the NR system, the transmission environment characteristics corresponding to data transmission can be represented by QCL information transmitted downstream.

In practical application, if the downlink transmission is from different beams (beams) or panels (panels) or TRPs, the characteristics of the transmission environment corresponding to the data transmission may change, so in the NR system, when the network side transmits the downlink control channel or the data channel, the network side indicates the corresponding QCL information to the terminal device through the TCI state, so that the terminal device determines the transmission environment characteristics corresponding to the downlink transmission.

In one embodiment, a TCI state may contain the following configuration information:

ID of TCI state;

QCL information 1;

QCL information 2 (optional).

Wherein the ID of the TCI state is used to identify the TCI state.

One QCL message in turn contains the following information:

QCL type configuration;

QCL reference signal configuration.

The QCL type configuration may be one of QCL type a (QCL type a), QCL type B (QCL type B), QCL type C (QCL type C), and QCL type D (QCL type D), and the QCL reference signal configuration may include a cell ID where a reference signal is located, an identifier of a partial Bandwidth (BWP), and an identifier of the reference signal.

Alternatively, the identification of the reference signal may be an ID of the CSI-RS resource or an index of the synchronization signal block SSB.

In one embodiment, if one TCI state configures both QCL information 1 and QCL information 2, the QCL type of one of the QCL information must be one of QCL type a, QCL type B, QCL type C, and the QCL type of the other QCL information must be QCL type D.

Optionally, the definitions of the different QCL types are as follows:

'QCL-Type A': (Doppler shift, doppler spread, AVERAGE DELAY, DELAY SPREAD), i.e., the configuration information for QCL Type A includes Doppler shift, doppler spread, average delay, delay spread;

'QCL-Type B': doppler shift, doppler spread }, i.e., the configuration information of QCL Type B includes Doppler shift, doppler spread;

'QCL-Type C': doppler shift, AVERAGE DELAY, i.e., the configuration information of QCL Type C includes Doppler shift, average delay;

the configuration information of 'QCL-Type D': { Spatial Rx parameter }, i.e. QCL Type D, includes spatial reception parameters.

In an NR system, the network side may configure a TCI state for a downlink signal or a downlink channel.

In one possible design, if the network side configures the QCL reference signal of the target downlink channel or the target downlink signal to be the reference SSB or the reference CSI-RS resource through the TCI state and the QCL type is configured to be type a, type B or type C, the terminal device may assume that the large scale parameters of the target downlink signal and the reference SSB or the reference CSI-RS resource are the same, and the large scale parameters may be determined through the configuration of the QCL type.

In another possible design, if the network side configures the QCL reference signal of the target downlink channel or downlink signal to be the reference SSB or the reference CSI-RS resource through the TCI state and the QCL type is configured to be type D, the terminal device may receive the target downlink signal using the same reception beam (i.e. Spatial Rx parameter) as that used to receive the reference SSB or the reference CSI-RS resource.

Typically, the target downlink channel (or downlink signal) is transmitted by the same TRP or the same panel or the same beam as its reference SSB or reference CSI-RS resource on the network side. If the transmission TRP or transmission panel or transmission beam of the two downlink signals or downlink channels are different, different TCI states are typically configured.

For a physical downlink control channel (physical downlink control channel, PDCCH), the TCI state of the corresponding control resource set (control resource set, CORESET) may be indicated by means of radio resource control (radio resource control, RRC) signaling or RRC signaling + medium access control (MEDIA ACCESS control, MAC) signaling.

For a physical downlink shared channel (physical downlink SHARED CHANNEL, PDSCH), i.e. a downlink data channel, the set of available TCI states is indicated by RRC signaling, part of the TCI states are activated by MAC layer signaling, and finally one or both TCI states are indicated from the activated TCI states for the DCI scheduled PDSCH by means of a TCI state indication field in the downlink control information (downlink control information, DCI). Wherein the case of two TCI states is mainly for multiple TRP-like scenarios.

Fig. 2 is a schematic diagram illustrating a TCI state configuration procedure of PDSCH. As shown in fig. 2, the network side indicates N candidate TCI states through RRC signaling, then activates K activated TCI states among the N candidate TCI states through MAC signaling, and finally indicates 1 or 2 used TCI states through DCI. Alternatively, N and K may be integers greater than or equal to 2, and N is greater than or equal to K.

Optionally, in practical application, there are three TCI-state switching modes of activation configuration, which are respectively a TCI-state switching delay based on a medium access control-control element (MEDIA ACCESS control-control element, MAC-CE), a TCI-state switching delay based on RRC, and a TCI-state switching delay based on DCI.

By way of example, the following explains the switching of the TCI-state by taking the TCI-state switching delay based on the MAC-CE as an example.

In one possible design, if the target TCI state (TARGET TCI STATE) is known, before the nth slot (slot n) receives the PDSCH carrying the MAC-CE activation command, the terminal device may employ the target TCI state of the serving cell for which the TCI state switch (TCI STATE SWITCH) currently occurs, at The first slot (slot) after that receives the PDCCH. At the position ofAnd before, the terminal device should be able to receive the PDCCH with the old TCI state (the old TCI state).

Wherein T _HARQ is the time between transmission of the downstream data specified in TS 38.213 to acknowledgement, i.e., T _HARQ IS THE TIMING between DL data transmission and acknowledgement AS SPECIFIED IN TS 38.213;

T _first-SSB denotes the time for the first transmission of SSB after the UE decodes the MAC CE command, and SSB is the reference resource of QCL type A or QCL type C of the target TCI state, i.e. ,T_first-SSBis time to first SSB transmission after MAC CE command is decoded by the UE;The SSB shall be the QCL-Type A or QCL-Type C to target TCI state.

T _SSB-proc denotes the time (including the margin) of the demodulation processing SSB, and specifically, T _SSB-proc =2 ms.

TO _k indicates whether the known target TCI state is in the active TCI state list of PDSCH, if the target TCI state is not in the active TCI state list of PDSCH, TO _k =1, otherwise TO _k =0. I.e. TO _k = 1if target TCI state is not in the active TCI state list for PDSCH,0otherwise.

The slot length is expressed, which is related to μ of the subframe, μ is the subcarrier spacing of PUSCH, μ is 0,1,2,3 indicates subcarrier spacing of 15khz,30khz,60khz,120khz, respectively. In particular, the method comprises the steps of,

In another possible design, if the target TCI state (THE TARGET TCI STATE) is unknown, the terminal device may employ the target TCI state of the serving cell currently undergoing TCI state switching (TCI STATE SWITCH) before the nth slot (slot n) receives the PDSCH carrying the MAC-CE activation command, at The first slot (slot) after that receives the PDCCH. At the position ofAnd before, the terminal device should be able to receive the PDCCH with the old TCI state (the old TCI state).

Wherein T _L1-RSRP =0 when the TCI state switching in the first frequency band (frequency range 1, FR1) or in the second frequency band (frequency range 2, FR2) does not involve QCL-Type D, or

T _L1-RSRP is the time of receive beam refinement in FR2, and has two defining ways:

First, T _L1-RSRP is defined in the protocol as T _{L1-RSRP_Measurement_Period_SSB} specifying SSB, where T _{L1-RSRP_Measurement_Period_SSB} represents a measurement time of L1-RSRP, which is a reference signal received power (REFERENCE SIGNAL RECEIVING power, RSRP) of the L1 layer (physical layer), which measures the SSB period.

Second, T _L1-RSRP is defined in the protocol as T _{L1-RSRP_Measurement_Period_CSI-RS} designating CSI-RS, where T _{L1-RSRP_Measurement_Period_CSI-RS} represents a measurement time of L1-RSRP, which is a reference signal received power (REFERENCE SIGNAL RECEIVING power, RSRP) of the L1 layer (physical layer), measuring CSI-RS period.

The conditions include configured high-level parameter repetition set on and periodic CSI-RS.

If the number of resources in the resources is at least equal to the maximum number of received beams (MaxNumberRxBeam), aperiodic CSI-RS is used.

Specifically, in the protocol, T _L1-RSRP is explained as follows:

-T_L1-RSRP=0in FR1 or when the TCI state switching not involving QCL-Type D in FR2.Otherwise,

-T_L1-RSRPis the time for Rx beam refinement in FR2,defined as

-T_{L1-RSRP_Measurement_Period_SSB}for SSB as specified in clause 9.5.4.1;

-T_{L1-RSRP_Measurement_Period_CSI-RS}for CSI-RS as specified in clause 9.5.4.2;

-configured with higher layer parameter repetition set to ON;

-with the assumption of M=1for periodic CSI-RS;

-for aperiodic CSI-RS if number of resources in resource set at least equal to MaxNumberRxBeam。

TO _uk indicates whether the unknown target TCI state is in the active TCI state list for PDSCH;

Wherein for CSI-RS based L1-RSRP measurements, TO _uk =1, i.e., TO _uk =1 for CSI-RS based L1-RSRP measurement;

When the TCI state switch involves QCL-Type D, TO _uk =0 for SSB-based L1-RSRP measurements, i.e., TO _uk = 0for SSB based L1-RSRP measurement WHEN TCI STATE SWITCHING involves QCL-Type D;

When TCI state switching involves only other QCL types, TO _uk =1, i.e., TO _uk =1 when TCI state switching involves other QCL types only.

The target TCI state is not in the active TCI state list for PDSCH, then TO _k =1, otherwise TO _k =0. I.e. TO _k = 1if target TCI state is not in the active TCI state list for PDSCH,0otherwise.

For T _first-SSB:

When TCI state switching involves QCL-Type D, T _first-SSB is the time after L1-RSRP measurement to first transmit SSB, i.e ,T_first-SSBis time to first SSB transmission after L1-RSRP measurement when TCI state switching involves QCL-TypeD;

For other QCL types, T _first-SSB is the time after the UE decodes the MAC CE command to the first transmission of SSB, i.e ,T_first-SSBis time to first SSB transmission after MAC CE command is decoded by the UE for other QCL types;

The target TCI state of SSB is QCL-Type A or QCL-Type C, i.e., the SSB shall be the QCL-Type A or QCL-Type C to TARGET TCI STATE.

Active TCI list update

If the target TCI state is known, the UE, upon receiving the PDSCH carrying the update of the MAC-CE activated TCI state list in slot n, will be able to receive the PDCCH in the first slot, which is then used to schedule the PDSCH with the new target TCI stateThe first slot (slot) thereafter. Wherein T _HARQ、T_first-SSB、T_SSB-proc and TO _k are both defined in protocol 8.10.3.

Specifically, english is explained as follows ：If the target TCI state is known,upon receiving PDSCH carrying MAC-CE active TCI state list update at slot n,UE shall be able to receive PDCCH to schedule PDSCH with the new target TCI state at the first slot that is afterWhere T_HARQ,T_first-SSB,T_SSB-procand TO_kare defined in clause 8.10.3。

In the prior art, the flow of the TCI state switching or TCI state list updating configuration of the MAC-CE activation signaling is basically consistent. The method comprises the following steps:

1. The network side indicates the corresponding TCI state for the downlink signal or the downlink channel;

2. When the network configures a MAC-CE activated TCI state handoff, a new configuration of reference signals (e.g., RS1, existing RS1 is SSB) is activated at the same time, the RS1 is used for the UE to perform a fast handoff adjustment (a short period of time adjustment one short timing adjustment). For example, this TCI status by MAC CE for a particular UE may be included to indicate the MAC CE for the PDCCH of the particular UE, i.e., TCI State Indication for UE-SPECIFIC PDCCH MAC CE.

3. The UE is receiving the activation signalingAfter a period of interval gap, the UE may receive the PDCCH with a new TCI state when the first reference signal (TO _k*(T_first-SSB+T_SSB-proc) is received and processed.

4. The UE needs to meet the specified delay requirement when completing the handover procedure in step3 above, and does not need to receive or transmit data in the gap.

Wherein 4-1 (based on requirements 8.10.3 in existing protocols) for a known target TCI state, if the current target TCI state is in the active TCI state list of PDSCH, the latency requirement for TCI state switching is T _first-RS1+T_RS1-proc.

4-2 (Based on requirements 8.10.3 of existing protocols) for unknown target TCI state, if the current target TCI state is in the active TCI state list of PDSCH, then the latency requirement for TCI state switching is T _L1-RSRP+TO_uk*(T_first-RS1+T_RS1-proc. Wherein the meaning of T _L1-RSRP,TO_uk is referred to the existing protocol TS 38133.

From the above analysis, for TCI state switching activated by MAC CE activation signaling or RRC activation signaling, the UE can receive PDCCH with old TCI state untilAfter the UE receives and processes the activation signaling, a certain period of time (interval gap) is required, i.e. The first slot (slot) thereafter can begin to receive PDCCH or PDSCH with the new TCI state.

In particular, fig. 3 is a schematic diagram illustrating a distribution of handover adjustment times when a UE performs TCI state handover. As shown in fig. 3, if the UE is in the presence ofThe time processing completes the activation signaling, when just one reference signal is missed, for example, the reference signal is SSB, and the period of SSB is 160ms, so that the UE cannot receive and transmit data at an interval gap of 160ms, which causes great time waste (latency) and throughput loss. Wherein,

It can be appreciated that the reason why this timeslot gap is generated is mainly because the UE needs to receive a reference signal (e.g. SSB) to adjust a corresponding new beam, possibly to adjust the power and/or direction and/or timing of the new beam, which is not explicitly required in the protocol, but leaves room for implementation for the UE. The length of Gap depends on the period and time offset of the reference signal.

Aiming at the problems, when the UE uses the MAC-CE carried by the PUSCH to update the active TCI state list, the problems of time waste and large terminal throughput loss exist when the UE cannot receive and transmit data for a long time.

In view of the above problems, an embodiment of the present application provides a TCI state list updating method, which is used to reduce interrupt time caused by TCI state list updating and reduce throughput loss. Specifically, the application mainly comprises the following implementation schemes:

In one embodiment, the network pre-configures or demarcates a subset of TCI states in the active TCI state list, wherein each corresponding RS in the subset of TCI states is pre-configured as a reference signal (e.g., SSB or CSI-RS) having a short period (e.g., 10 ms) or selects the reference signal having the shortest period from the reference signals corresponding to the configured TCI states. Once the UE has supported or reported the capability to have a fast TCI state switch or the capability to support a fast update TCI state list, the network may dynamically or semi-statically configure the switch of TCI state based on the UE's request.

In another embodiment, a new TCI state list is introduced into the network, and if the original TCI state list is referred to as TCI state list 1, the new TCI state list may be referred to as TCI state list 2. If the target TCI state exists in the TCI state list 2, the RS of the configured target TCI state must be a short period (e.g., 10 ms) RS (e.g., CSI-RS or tracking reference signal (TRACKING REFERENCE SIGNAL, TRS), etc.). Optionally, the network may also configure the period of the RS at the same time. After the UE receives and detects 1 or more RSs during the processing, the UE may start to receive the PDCCH using the new TCI state.

Or configuring the RS of the target TCI state in a predefined manner by the protocol, the terminal device completes the switching adjustment of the TCI state according to a fixed short delay interval (e.g. gap 2=10 ms) or a requirement of not longer than 1 TRS period, and then starts to receive the PDCCH with the new TCI state.

The technical scheme can improve the efficiency of updating the TCI state list, reduce the interruption gap caused by TCI state switching and reduce throughput loss.

The technical scheme of the application is described in detail through specific embodiments. It should be noted that, the technical solution of the present application may include some or all of the following, and the following specific embodiments may be combined with each other, and the same or similar concepts or processes may not be described in some embodiments.

Fig. 4 is an interaction schematic diagram of a first embodiment of a TCI state list updating method provided by the present application. The method is described in terms of information interaction between a terminal device and a network device. Referring to fig. 4, in this embodiment, the method may include the steps of:

S401, determining a first TCI state list, wherein the first TCI state list comprises a first activated TCI state, and the first activated TCI state comprises reference signal configuration information, and the reference signal configuration information is used for configuring short-period reference signals.

In the embodiment of the present application, the first TCI state list may be a TCI state list formed by a part of TCI states in the original active TCI state list, or may be a TCI state list redefined by the network device, which is not limited herein.

Alternatively, the short period of the short period reference signal is for the longer period of the reference signal for activating the TCI state in the prior art, for example, the period of the existing reference signal is 160ms, and the period of the reference signal for activating the TCI state in the present embodiment may be preconfigured to 10ms.

In this step, the period of the short period reference signal is less than the duration threshold. The duration threshold may be implemented by different definitions, specifically as follows:

as one example, the duration threshold is a protocol pre-configured and/or protocol pre-defined threshold.

Optionally, when the duration threshold is preconfigured and/or predefined by the protocol, different terminal capabilities (e.g. in the first frequency band FR1 or the second frequency band FR2, cell known or cell unknown, etc.) may correspond to different duration thresholds.

As another example, the duration threshold is a threshold of network device configuration.

Optionally, the duration threshold may be a threshold configured by the network device through RRC signaling, or may be a threshold determined by the network device according to the TCI state switching capability reported by the terminal device, which is not described in detail in this embodiment.

As yet another example, the duration threshold is a threshold that the terminal device reports based on supported TCI state switching capabilities.

Specifically, the duration threshold may also be a threshold that the terminal device determines and reports to the network device based on the TCI state switching capability supported by the terminal device.

In one possible design of the present application, the network device may first determine the TCI state switching capability supported by the terminal device before determining the first TCI state list. For example, for a terminal device that supports and wishes to be able to quickly switch TCI states, it may send supported TCI state switching capabilities to the network device so that the network device may determine the first TCI state list based on the TCI state switching capabilities supported by the terminal device.

The TCI state switching capability includes a capability to support fast switching of TCI states or a capability to support updating of a TCI state list.

Alternatively, the capability of rapidly switching the TCI state is a capability that the terminal device has in performing the TCI state procedure, which is relative to the TCI state switching capability of the normal terminal. The terminal with the capability of quickly switching the TCI state can quickly execute the adjustment of the new beam information according to the short-period reference signal, and the adjustment time is relatively short.

In another possible design of the present application, before determining the first TCI state list, the network device may first receive a TCI state list update request sent by the terminal device, that is, when the terminal device supports and wants to be able to switch TCI states quickly, the network device may send a TCI state list update request to the network device, so that the network device determines the first TCI state list according to the received TCI state list update request.

From the above analysis, it can be seen that for terminal devices that support and wish to be able to switch TCI states quickly, it can request to activate an update of the TCI state list, e.g. dynamically as indicated by DCI requirements or by a capability indication or update semi-static request of the terminal device in RRC instructions.

Optionally, when the terminal device sends the TCI state list update request to the network device, a proposed reference signal (which may include a reference signal period) or adjustment time may also be given to the network, so that the network device dynamically or semi-statically configures corresponding TCI adjustment switching information based on the TCI state list update request of the terminal device or based on the TCI state switching capability supported by the terminal device.

S402a, the network device sends first indication information to the terminal device, where the first indication information is used to indicate updating the TCI status list.

Optionally, in the embodiment of the present application, the process of updating the TCI state list includes adding a new TCI state in the TCI state list or deleting a certain TCI state in the TCI state list, so that when the new TCI state is added in the TCI state list, the first indication information carries a new TCI state that needs to be added, and when a certain TCI state in the TCI state list is deleted, the first indication information carries an identifier of the TCI state that needs to be deleted, so that the terminal device executes a corresponding operation.

In this embodiment, the network device may send the first TCI state list for the terminal device to the terminal device when determining the first TCI state list for the terminal device, so that the terminal device can execute the switching adjustment work of the TCI state according to the first reference signal of the active TCI state in the first TCI state list after processing the activation instruction.

S402b, the terminal equipment determines a first TCI state list according to the received first indication information.

S403, the terminal equipment determines the switching adjustment time of the TCI state according to the first TCI state list.

After receiving the first indication information sent by the network device, the terminal device may update the TCI state list according to information carried in the first indication information to generate a first TCI state list, and further may determine a switching adjustment time of the terminal device to execute the TCI state according to a property of the first TCI state list (obtained based on the original active TCI state list or an introduced new active TCI state list) and a period of a reference signal of the first active TCI state included in the first TCI state list.

Optionally, in an embodiment of the present application, after determining the switching adjustment time of the TCI state according to the first TCI state list, the terminal device may further include performing the following operations:

s404, switching adjustment work of the TCI state is carried out in the switching adjustment time.

For example, after determining the first active TCI state and processing the activation instruction of the first active TCI state, the terminal device may perform a switching adjustment task of the TCI state, for example, adjust a new beam for receiving downlink information according to a reference signal of the first active TCI state, and receive and process the used first reference signal.

Optionally, the terminal device may adjust the power and/or the direction and/or the timing of the new beam according to the reference signal of the first active TCI state, which is not limited in practical application, and may be determined according to the requirement of the terminal device.

S405, when the switching adjustment operation is completed, starting from the end time slot of the switching adjustment time, allowing the reception of the downlink information by using the determined first active TCI state.

In general, the terminal device is capable of completing the switching adjustment operation of the TCI state within the switching adjustment time, specifically, before the end time slot of the switching adjustment time, the processing operation for the activation instruction is completed, and the first reference signal is also processed, and at this time, starting from the end time slot of the switching adjustment time, the terminal device is allowed to receive the downlink information using the determined first activated TCI state.

Optionally, when the end time slot of the switching adjustment time is reached, the terminal device may receive the PDCCH in the new TCI state, and further determine DCI of the scheduled PDSCH based on the received PDCCH. Optionally, the DCI may include location of the corresponding PDSCH, MCS information, and may further indicate whether the data is retransmission and layer, precoding, and other related information used for transmission. The specific implementation of the downstream information is not limited here.

According to the TCI state list updating method provided by the embodiment of the application, the network equipment sends the first indication information to the terminal equipment, the first indication information is used for updating the TCI state list, the terminal equipment can determine the first TCI state list according to the first indication information, the first TCI state list comprises a first activated TCI state, the first activated TCI state comprises reference signal configuration information, the reference signal configuration information is used for configuring a short period reference signal, and further, the switching adjustment time of the TCI state can be determined according to the first TCI state list. In the technical scheme, the reference signal configuration information is used for configuring the short-period reference signal, namely, the reference signal of the first activated TCI state included in the first TCI state list is configured with a short period, so that the interruption of data transmission to the current service cell in TCI state switching is shortened, the switching efficiency is improved, and the throughput loss is reduced.

In one possible design of the embodiment of the present application, fig. 5 is a schematic flow chart of a second embodiment of a TCI state list updating method provided by the present application. As shown in fig. 5, the above S401 may be implemented by:

s501, the network equipment acquires a configured activated TCI state list.

In an embodiment of the present application, the network device may first determine an original configured active TCI state list, where the configured active TCI state list includes a plurality of active TCI states, and then select at least one active TCI state from all the active TCI states to form a first TCI state list.

S502, the network equipment determines the period of each reference signal for activating the TCI state in the configured activated TCI state list.

In practical application, since the TCI state switching efficiency at the terminal device side is related to the duration of adjusting the new beam after the activation instruction is processed, and the duration of adjusting the new beam is related to the period of the reference signal used by the terminal device, after determining that the TCI state list is configured, the network device may first obtain the period of the reference signal of each activated TCI state in the configured TCI state list, thereby laying a foundation for subsequent updating of the activated TCI state list.

S503, the network device determines a list formed by a first activated TCI state in the configured activated TCI state list as a first TCI state list, wherein a reference signal of the first activated TCI state is a reference signal with the shortest period.

For example, in order to improve the TCI state switching efficiency at the terminal device side, the network device may select a first active TCI state having a reference signal with a shortest period from the configured active TCI state list, and form a first TCI state list using the first active TCI states.

Specifically, from the network side, the network device may pre-configure or mark a TCI state subset in the original active TCI state list, where a reference signal corresponding to each TCI state in the TCI state subset is pre-configured as a reference signal (e.g., SSB or CSI-RS) with a short period (e.g., 10 ms), or a period of a reference signal corresponding to each TCI state in the TCI state subset is the shortest period that the configured reference signal has.

Typically, each reference signal can be configured with a periodic sequence, but each reference signal has only a minimum period. For example, the period of SSB may be configured to any one of 10ms,20ms,40ms,60ms, etc., but the shortest period is configured to be 10ms. The period of the TRS may be configured to be any one of 20ms,40ms,60ms,80ms, etc., but the shortest period is configured to be 20ms.

For example, if a certain operation needs to consume 20ms, 2 reference signals are needed for processing when SSB with a period of 10ms is used, 1 reference signal is needed for processing when SSB with a period of 20ms is used, and only 1 TRS is needed for processing when TRS with a period of 20ms is used.

Alternatively, in practical application, the reference signal and the selection priority of the corresponding period of the reference signal and the priority of use of different reference signals may be set. For example, if a certain operation requires 20ms, and the reference signals usable by the terminal device include SSB and TRS, the SSB has a higher priority than the TRS, the SSB has a shortest period of 10ms, and the TRS has a shortest period of 20ms.

As an example, if the selection priority of the reference signal is greater than the selection priority of the corresponding period of the reference signal, the terminal device may first select SSB as the reference signal to be used and then process using 2 SSBs of 10ms period.

As another example, if the selection priority of the reference signal corresponding period is greater than the selection priority of the reference signal, the terminal device may first determine to use the reference signal with the shortest period of 20ms, then determine to use the TRS with the shortest period of 20ms, and finally use the TRS with 1 period of 20ms for processing.

It will be appreciated that since the short period is less than the duration threshold, when the terminal device selects SSB as the reference signal to be used, in order to process an operation with a time consumption of 20ms, SSB with a period of 10ms and SSB with a period of 20ms are both satisfied, and the terminal device can process with SSB with a period of 20ms in addition to SSB with 2 periods of 10ms, or SSB with a period of 20ms with 1 period. The reference signal actually selected by the terminal device and the period corresponding to the reference signal may be determined according to the actual requirement, which is not described herein.

Accordingly, the step S403 may be implemented as follows:

S504, the terminal equipment determines a first activated TCI state with the shortest period reference signal from the first TCI state list.

In this embodiment, when the terminal device receives the first TCI state list sent by the network device, the terminal device may analyze the periods of the reference signals of each TCI state in the first TCI state list, and further select the shortest period from all the periods of the reference signals, so as to determine the first active TCI state of the reference signal having the shortest period.

It will be appreciated that the first active TCI state is a target handover TCI state of the terminal device.

S505, the terminal equipment determines the switching adjustment time of the TCI state based on the shortest period of the reference signal of the first activated TCI state.

Optionally, if the terminal device supports the capability of rapidly switching the TCI state, after determining the first active TCI state of the reference signal having the shortest period in the first TCI state list, it may determine the switching adjustment time of the TCI state according to the shortest period of the reference signal having the first active TCI state.

Illustratively, the following explanation is given taking the TCI state configuration of the existing SSB or CSI-RS as an example. If it is agreed that once the terminal device supports or reports the capability of fast switching TCI state, the configured period of the first active TCI state may employ the configured SSB period and the shortest period of the CSI-RS period on the current serving cell (SERVING CELL).

For example, fig. 6A is a schematic diagram of determining a TCI state switching adjustment time by using 1 CSI-RS in an embodiment of the present application. Fig. 6B is a schematic diagram of determining TCI state switching adjustment time by using multiple CSI-RSs according to an embodiment of the present application. As shown in fig. 6A and 6B, the terminal device receives the activation instruction in the time slot n, and completes the processing of the activation instruction in the time slot corresponding to (n+t _HARQ +3ms), assuming that the terminal device just misses a reference signal at this time. In the scenario diagram of the embodiment, since the shortest period of the SSB is smaller than the shortest period of the CSI-RS, the terminal device uses the CSI-RS as the reference signal for the first active TCI state, and uses the shortest period of the CSI-RS to determine the switching adjustment time of the TCI state.

As an example, in the schematic diagram shown in fig. 6A, the shortest period of 1 CSI-RS is used to determine the switching adjustment time of the TCI state. As another example, in the schematic diagram shown in fig. 6B, the switching adjustment time of the TCI state is determined using the shortest period of x CSI-RSs, where x is a positive integer greater than 1. Specifically, the terminal device needs to perform operations such as time synchronization adjustment by using multiple reference signals, and thus, adjustment time of multiple reference signal periods needs to be consumed.

According to the TCI state list updating method provided by the embodiment of the application, the network equipment determines the period of the reference signal of each activated TCI state in the configured activated TCI state list according to the configured activated TCI state list, then determines a list formed by the first TCI state of the reference signal with the shortest period in the configured activated TCI state list as the first TCI state list, correspondingly, the terminal equipment can determine the first activated TCI state of the reference signal with the shortest period from the first TCI state list, and then determines the switching adjustment time of the TCI state based on the period of the reference signal with the shortest period. In the technical scheme, the switching adjustment time of the TCI state is determined by adopting the period of the reference signal with the shortest period, for example, the SSB period of the configured current cell is 80ms, and the shortest period of the adopted CSI-RS is 10ms, so that the interruption of data transmission to the current service cell in the TCI state switching is obviously shortened, the switching efficiency is improved, and the throughput loss, particularly the loss of the PDCCH transmission rate is reduced.

In another possible design of the embodiment of the present application, fig. 7 is a schematic flow chart of a third embodiment of a TCI state list updating method provided by the present application. As shown in fig. 7, the above S401 may be implemented by:

s701, the network device acquires a configured active TCI status list.

The implementation of this step is the same as the implementation of S501 in the embodiment shown in fig. 5 and will not be described here again.

S702, the network equipment determines a first activated TCI state from the configured activated TCI state list.

In this embodiment, the network device may determine an active TCI state from all the TCI states included in the configured active TCI state list, and use the active TCI state as a first active TCI state, that is, the terminal device may use the first active TCI state to receive downlink information later.

S703, the network device pre-configures a reference signal with a target period for a first active TCI state.

Wherein the target period is less than a duration threshold.

Alternatively, the network device may use a reference signal with a fixed period, so that a reference signal with a target period may be preconfigured for the first active TCI state, where the target period is a fixed duration and is less than a duration threshold, so as to shorten a duration of executing the TCI state switching by the terminal device.

S704, the network device determines the active TCI state list having the first active TCI state as the first TCI state list.

Illustratively, the network device updates the configured active TCI state list after processing a period of a reference signal of a first active TCI state in the configured active TCI state list, thereby forming the first TCI state list.

Accordingly, the step S403 may be implemented as follows:

s705, the terminal equipment determines a first activated TCI state of the reference signal with the target period from the first TCI state list.

For example, after receiving the first TCI state list, the terminal device may determine a first active TCI state from the first TCI state list, where a reference signal of the first active TCI state is a reference signal having a target period.

S706, the terminal equipment determines the switching adjustment time of the TCI state based on the target period.

In this step, the terminal device may perform the adjustment work of the new beam using the reference signal of the first active TCI state, i.e. first determine the switching adjustment time of the TCI state according to the target period the reference signal has.

Optionally, in this embodiment, as shown in fig. 7, the method may further include the following steps:

S707, the terminal equipment modifies the configuration period of the reference signal on the serving cell where the terminal equipment is located according to the target period of the reference signal in the first activated TCI state.

As an example, when the terminal device determines that the reference signal of the first active TCI state has a fixed target period, for example, when the reference signal of the first active TCI state is a fixed 20ms SSB, the terminal device may sample the fixed 20ms SSB to determine an adjusted switching time of the TCI state and simultaneously modify the configuration period of the SSB on the serving cell in an associated manner. It is noted that such modification may be temporary, e.g. only for a fixed period of time, such as 1s, or may be continuous, not limited thereto.

Optionally, the fixed target period of the reference signal of the first active TCI state may be indicated by the network device through a DCI instruction, or may be configured through a MAC CE instruction, specifically, indicated by carrying an RS with the target period in the DCI instruction or the MAC CE instruction. The specific manner of configuring the target period is not limited here.

Fig. 8 is a schematic diagram illustrating a method for determining TCI state switching adjustment time by using a reference signal with a target period according to an embodiment of the present application. As shown in fig. 8, the terminal device receives the activation instruction in the time slot n, and completes the processing of the activation instruction in the time slot corresponding to (n+t _HARQ +3ms), assuming that the terminal device just misses a reference signal at this time. In the scenario diagram of the present embodiment, the reference signal for activating the TCI state is an SSB with a fixed 20ms, and at this time, the terminal device determines the switching adjustment time of the TCI state by using the SSB with a fixed 20 ms.

According to the TCI state list updating method provided by the embodiment of the application, the network equipment determines the first activated TCI state from the configured activated TCI state list by acquiring the configured activated TCI state list, pre-configures the reference signal with the target period for the first activated TCI state, and finally determines the activated TCI state list with the first activated TCI state as the first TCI state list. In the technical scheme, the terminal equipment adopts the reference signal with the target period to determine the switching adjustment time of the TCI state, and the target period is smaller than the time threshold value and is obviously shorter than the period time of the existing reference signal, so that the interruption of data transmission of the current serving cell in the TCI state switching is obviously shortened, the switching efficiency is improved, and the throughput loss is reduced.

In yet another possible design of the embodiment of the present application, fig. 9 is a schematic flow chart of a fourth embodiment of a TCI state list updating method provided by the present application. As shown in fig. 9, the above S401 may be implemented by:

s901, the network equipment configures a first activated TCI state for the terminal equipment.

In this embodiment, the network device configures a first active TCI state for the terminal device based on the original active TCI state list.

In one possible design of this embodiment, the reference signal for the first active TCI state should be a reference signal configured with a short period. For example, the reference signal of the first active TCI state is any one of CSI-RS and TRS. Thus, the reference signal of the first active TCI state is a reference signal (e.g., CSI-RS or TRS, etc.) configured to be short-period (e.g., 10 ms), so that the switching adjustment time of TCI state switching can be shortened.

In another possible design of this embodiment, the first active TCI state is used to indicate that the time for switching the TCI state list is a fixed delay interval. The fixed delay interval is less than a duration threshold or the fixed delay interval is less than a period duration of a reference signal of the target TCI state.

For example, if the reference signal of the first active TCI state is a TRS that only supports configuration capable of fast switching, the first active TCI state may be used to indicate that the time for switching the TCI state list is a fixed delay interval, specifically a fixed short delay interval (e.g. the switching adjustment time is equal to 10 ms) or not longer than 1 TRS period.

S902, the network equipment generates a first TCI state list according to the first activated TCI state.

Optionally, after the network device configures the first active TCI state for the terminal device, a first TCI state list may be generated according to the first active TCI state, where the first TCI state list is different from the existing active TCI state list, and the first TCI state list may be a newly introduced TCI state list.

For example, when the reference signal of the first active TCI state is a reference signal configured with a short period, after the network device configures the first active TCI state for the terminal device, before generating the first TCI state list according to the first active TCI state, the period duration may also be configured for the reference signal of the first active TCI state first, so that the terminal device may determine the switching adjustment time of the TCI state based on the period duration of the reference signal.

Accordingly, the step S403 may be implemented as follows:

s903, when determining that the first TCI state list is a newly configured activated TCI state list, the terminal device determines a first activated TCI state in the first TCI state list.

In an exemplary embodiment, when determining that the received first TCI state list is a newly configured active TCI state list, the terminal device may determine that a first active TCI state exists in the first TCI state list, so that the first active TCI state in the first TCI state list may be determined based on a contract between the network device and the terminal device.

S904, the terminal equipment determines switching adjustment time of the TCI state according to the first activated TCI state.

When the terminal equipment acquires the first activated TCI state, the method for switching adjustment time of the TCI state can be determined according to the information or the appointed information of the reference signal of the first activated TCI state.

As an example, when the reference signal in the first active TCI state is a reference signal configured with a short period, the specific implementation of S904 is that the terminal device first determines the period of the reference signal in the first active TCI state, and then determines the switching adjustment time of the TCI state according to the period of the reference signal in the first active TCI state.

In this example, the reference signal of the first active TCI state is a short period reference signal, and the terminal device may start to receive downlink information (e.g., PDCCH) with a new TCI state (first active TCI state) after receiving detection of 1 or more reference signals.

Fig. 10 is a schematic diagram of determining TCI state switching adjustment time using 1 or more TRSs according to an embodiment of the present application. Similar to the diagrams shown in fig. 6A, 6B and 8, as shown in fig. 10, the terminal device receives the activation instruction in the time slot n, and completes the processing of the activation instruction in the time slot corresponding to (n+t _HARQ +3ms), assuming that the terminal device just misses a reference signal at this time. In the scenario diagram of the present embodiment, the first reference signal for activating the TCI state is a TRS configured with a short period, and at this time, the terminal device uses 1 or x TRSs to determine the switching adjustment time of the TCI state, where x is a positive integer greater than 1.

In this example, the period of the reference signal of the first active TCI state in the newly configured active TCI state list is shorter than the period of the reference signal of the TCI state in the original active TCI state list, for example, the period of the reference signal TRS of the first active TCI state is shorter than the period of the existing SSB, so that the interruption of data transmission of the current serving cell by TCI state switching can be obviously shortened, the switching efficiency is improved, and the throughput loss is reduced.

As another example, when the time for indicating that the TCI state list is switched by the first active TCI state is a fixed delay interval, the specific implementation scheme of S904 is that, according to the first active TCI state, a fixed delay interval for switching the TCI state list is determined, and according to the fixed delay interval, a switching adjustment time of the TCI state is determined. Wherein the fixed time delay interval is less than a duration threshold, or the fixed time delay interval is less than a period duration of the reference signal of the target TCI state.

In this example, if the reference signal of the first active TCI state is a TRS supporting only configuration capable of fast switching, once the terminal device determines that the network device indicates the target TCI state through the newly configured active TCI state list, it may determine a switching adjustment time of the TCI state according to a fixed short delay interval (e.g. gap 2=10 ms) or not longer than 1 TRS period, and complete switching adjustment of the TCI state as required within the switching adjustment time, and start at an end slot of the switching adjustment time, to allow receiving the PDCCH with the first active TCI state.

Fig. 11 is a schematic diagram of determining a switching adjustment time of a TCI state by using a fixed delay interval in an embodiment of the present application. As shown in fig. 11, the terminal device also receives the activation instruction in the time slot n, and completes the processing of the activation instruction in the time slot corresponding to (n+t _HARQ +3ms), assuming that the terminal device just misses a reference signal at this time. At this time, the terminal device performs a switching adjustment work of the TCI state with a fixed short delay interval or not longer than 1 TRS period.

In this example, the network does not limit the implementation of the terminal device, i.e. does not configure or assign a certain reference signal for the first active TCI state, but for a terminal supporting the capability of fast switching TCI states or supporting the capability of updating the TCI state list, the switching adjustment work can be completed with a fixed short delay interval or no longer than 1 TRS period, which improves the efficiency of TCI state switching, and reduces throughput loss, especially the loss of PDCCH transmission rate.

The above describes a specific implementation of the TCI state list updating method according to the embodiment of the present application, and the following is an embodiment of the apparatus of the present application, which may be used to execute the embodiment of the method of the present application. For details not disclosed in the embodiments of the apparatus of the present application, please refer to the embodiments of the method of the present application.

Fig. 12 is a schematic structural diagram of a TCI status list updating apparatus according to an embodiment of the present application. The apparatus may be integrated in a network device or may be implemented by a network device. As shown in fig. 12, the TCI state list updating apparatus may include:

A processing module 1201, configured to determine a first TCI state list, where the first TCI state list includes a first active TCI state, where the first active TCI state includes reference signal configuration information, where the reference signal configuration information is used to configure a short period reference signal;

A sending module 1202, configured to send first indication information to a terminal device, where the first indication information is used to indicate updating of a TCI status list.

Optionally, the period of the short period reference signal is less than a duration threshold;

The duration threshold is a protocol pre-configured and/or pre-defined threshold, or

The duration threshold is a threshold configured by the network device, or

The time length threshold value is a threshold value reported by the terminal equipment based on the supported TCI state switching capability.

In one possible design of this embodiment, the processing module 1201 is specifically configured to:

Determining the period of reference signals of each activated TCI state in a configured activated TCI state list according to the configured activated TCI state list;

and determining a list formed by a first activated TCI state in the configured activated TCI state list as the first TCI state list, wherein a reference signal of the first activated TCI state is a reference signal with the shortest period.

In another possible design of this embodiment, the processing module 1201 is specifically configured to:

determining a first activated TCI state from the configured activated TCI state list;

pre-configuring a reference signal with a target period for the first active TCI state, the target period being less than the duration threshold;

And determining an active TCI state list with the first active TCI state as the first TCI state list.

In yet another possible design of this embodiment, the processing module 1201 is specifically configured to:

Configuring a first activated TCI state for the terminal device;

And generating the first TCI state list according to the first activated TCI state.

Optionally, the processing module 1201 is further configured to configure a period duration for the reference signal of the first active TCI state.

In this example, the reference signal for the first active TCI state includes any one of:

Channel state information reference signal CSI-RS, tracking reference signal TRS.

As another example, the first active TCI state is used to indicate that the time for the TCI state list switch is a fixed delay interval;

the fixed time delay interval is smaller than a time length threshold value, or the fixed time delay interval is smaller than a period time length of the reference signal of the target TCI state.

In yet another possible design of this embodiment, the processing module 1201 is further configured to determine TCI state switching capability supported by the terminal device before determining the first TCI state list;

the processing module 1201 is configured to determine a first TCI status list, specifically:

The processing module 1201 is specifically configured to determine a first TCI status list according to TCI status switching capabilities supported by the terminal device.

The TCI state switching capability comprises the capability of supporting quick switching of TCI state or the capability of supporting updating of a TCI state list.

In yet another possible design of the present embodiment, the apparatus further comprises a receiving module 1203;

The receiving module 1203 is configured to receive, before the processing module 1201 determines the first TCI state list, a TCI state list update request sent by the terminal device;

The processing module 1201 is specifically configured to determine a first TCI state list according to the TCI state list update request.

The TCI state list updating device provided in this embodiment is configured to execute the technical solution on the network device side in the foregoing method embodiment, and its implementation principle and technical effect are similar, and are not described herein again.

Fig. 13 is a schematic structural diagram of a TCI status list updating apparatus according to a second embodiment of the present application. The device can be integrated in the terminal equipment or realized by the terminal equipment. As shown in fig. 13, the TCI state list updating apparatus may include:

a receiving module 1301, configured to receive first indication information from a network device, where the first indication information is used to update a TCI status list;

A processing module 1302, configured to determine a first TCI state list according to the first indication information, where the first TCI state list includes a first active TCI state, where the first active TCI state includes reference signal configuration information, where the reference signal configuration information is used to configure a short period reference signal;

The processing module 1302 is further configured to determine a switching adjustment time of the TCI state according to the first TCI state list.

Wherein the period of the short period reference signal is less than a duration threshold;

The duration threshold is a threshold configured by the network device, or

In one possible design of this embodiment, the processing module 1302 is specifically configured to:

Determining a first activated TCI state of a reference signal with the shortest period from the first TCI state list;

And determining the switching adjustment time of the TCI state based on the shortest period of the reference signal of the first activated TCI state.

In another possible design of this embodiment, the processing module 1302 is specifically configured to:

determining a first activated TCI state of a reference signal with a target period from the first TCI state list, wherein the target period is smaller than the duration threshold;

And determining the switching adjustment time of the TCI state based on the target period of the reference signal of the first activated TCI state.

Optionally, the processing module 1302 is further configured to modify a configuration period of a reference signal on a serving cell where the terminal device is located according to a target period of the reference signal in the first active TCI state.

In yet another possible design of this embodiment, the processing module 1302 is specifically configured to:

When the first TCI state list is determined to be a newly configured activated TCI state list, determining a first activated TCI state in the first TCI state list;

and determining the switching adjustment time of the TCI state according to the first activated TCI state.

As an example, the processing module 1302 is configured to determine, according to the first active TCI state, a switching adjustment time of the TCI state, specifically:

The processing module 1302 is specifically configured to:

determining a period of a reference signal of the first active TCI state;

And determining the switching adjustment time of the TCI state according to the period of the reference signal of the first activated TCI state.

As another example, the processing module 1302 is configured to determine, according to the first active TCI state, a switching adjustment time of the TCI state, specifically:

The processing module 1302 is specifically configured to:

Determining a fixed time delay interval for switching a TCI state list according to the first activated TCI state, wherein the fixed time delay interval is smaller than a time length threshold value or is smaller than one period time length of a reference signal of the target TCI state;

and determining the switching adjustment time of the TCI state according to the fixed time delay interval.

In yet another possible design of the present embodiment, the apparatus further includes a transmitting module 1303;

the sending module 1303 is configured to send a supported TCI state switching capability to the network device;

Or alternatively

The sending module 1303 is configured to send a TCI status list update request to the network device.

In yet another possible design of this embodiment, the processing module 1302 is further configured to perform a switching adjustment operation of the TCI state during the switching adjustment time, and when the switching adjustment operation is completed, start from an ending time slot of the switching adjustment time, allow receiving downlink information with the determined first active TCI state.

The TCI state list updating device provided in this embodiment is configured to execute the technical solution on the terminal device side in the foregoing method embodiment, and its implementation principle and technical effect are similar, and are not described herein again.

Fig. 14 is a schematic structural diagram of an embodiment of a network device according to the present application. As shown in fig. 14, the network device may include a processor 1401, a memory 1402, a transceiver 1403, and an interface 1404 to communicate with a terminal device.

Wherein the memory 1402 stores computer-executable instructions;

the processor 1401 executes computer-executable instructions stored in the memory, so that the processor 1401 executes the technical solution on the network device side as in the foregoing method embodiment.

Fig. 15 is a schematic structural diagram of an embodiment of a terminal device provided by the present application. As shown in fig. 15, the terminal device may include a processor 1501, memory 1502, transceiver 1503, and interface 1504 to communicate with network devices.

Wherein the memory 1502 stores computer-executable instructions;

the processor 1501 executes computer-executable instructions stored in the memory, so that the processor 1501 executes the technical scheme on the terminal equipment side as in the foregoing method embodiment.

Further, the embodiment of the application can also provide a communication system which can comprise a terminal device and a network device.

The terminal device may include the TCI state list updating device described in fig. 13 or the terminal device described in fig. 15, and the network device may include the TCI state list updating device described in fig. 12 or the network device described in fig. 14.

It will be appreciated that the communication system may also include other devices, which may be determined according to the actual scenario, and will not be described in detail herein.

The application also provides a computer readable storage medium, in which computer executable instructions are stored, for implementing the technical solution on the terminal device side in the foregoing method embodiment when the computer executable instructions are executed by a processor.

The application also provides a computer readable storage medium, in which computer executable instructions are stored, which when executed by a processor are used to implement the technical solution of the network device side in the foregoing method embodiment.

The embodiment of the application also provides a program which is used for executing the technical scheme of the terminal equipment side in the embodiment of the method when being executed by a processor.

The embodiment of the application also provides a program which is used for executing the technical scheme of the network equipment side in the embodiment of the method when being executed by a processor.

The embodiment of the application also provides a computer program product comprising program instructions for implementing the technical scheme of the terminal equipment side in the foregoing method embodiment.

The embodiment of the application also provides a computer program product comprising program instructions for implementing the technical scheme of the network equipment side in the foregoing method embodiment.

The embodiment of the application also provides a chip which comprises a processing module and a communication interface, wherein the processing module can execute the technical scheme of the terminal equipment side in the embodiment of the method.

Further, the chip further includes a storage module (e.g., a memory), where the storage module is configured to store the instruction, and the processing module is configured to execute the instruction stored in the storage module, and execution of the instruction stored in the storage module causes the processing module to execute the technical solution on the terminal device side in the foregoing method embodiment.

The embodiment of the application also provides a chip which comprises a processing module and a communication interface, wherein the processing module can execute the technical scheme of the network equipment side in the embodiment of the method.

Further, the chip further includes a storage module (e.g., a memory), where the storage module is configured to store the instruction, and the processing module is configured to execute the instruction stored in the storage module, and execution of the instruction stored in the storage module causes the processing module to execute the technical solution on the network device side in the foregoing method embodiment.

In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of elements is merely a logical functional division, and there may be additional divisions of actual implementation, e.g., multiple elements or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

In the specific implementation of the network device and the terminal device, it should be understood that the Processor may be a central processing unit (english: central Processing Unit, abbreviated as CPU), or may be other general purpose processors, digital signal processors (english: DIGITAL SIGNAL Processor, abbreviated as DSP), application-specific integrated circuits (english: application SPECIFIC INTEGRATED Circuit, abbreviated as ASIC), or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the present application may be embodied directly in a hardware processor for execution, or in a combination of hardware and software modules in a processor for execution.

All or part of the steps for implementing the method embodiments described above may be performed by hardware associated with program instructions. The foregoing program may be stored in a readable memory. The program, when executed, performs the steps comprising the method embodiments described above, and the aforementioned memory (storage medium) comprises read-only memory (ROM), RAM, flash memory, hard disk, solid state disk, magnetic tape (english: MAGNETIC TAPE), floppy disk (english: floppy disk), optical disk (english: optical disk), and any combination thereof.

Claims

1. A method for updating a transmission configuration indication (TCI) status list, comprising:

A first TCI state list is determined, where the first TCI state list includes: a first activated TCI state, where the first activated TCI state includes reference signal configuration information, where the reference signal configuration information is used to configure a short-cycle reference signal.

2. The method according to claim 1, characterized in that the period of the short-period reference signal is less than the duration threshold;

The duration threshold is a threshold pre-configured by the protocol and/or pre-defined by the protocol; or

The duration threshold is a threshold configured by the network device; or

The duration threshold is the threshold reported by the terminal device based on the supported TCI state switching capability.

3. The method according to claim 1, wherein determining the first TCI status list comprises:

Determine, according to the configured activated TCI state list, the period of the reference signal of each activated TCI state in the configured activated TCI state list;

A list formed by the first activated TCI state in the configured activated TCI state list is determined as the first TCI state list, and the reference signal of the first activated TCI state is a reference signal with the shortest period.

4. The method according to claim 2, wherein determining the first TCI status list comprises:

Determine a first activated TCI state from the configured activated TCI state list;

pre-configuring a reference signal having a target period for the first activated TCI state, wherein the target period is less than the duration threshold;

An activated TCI state list having the first activated TCI state is determined as the first TCI state list.

5. The method according to claim 1, wherein determining the first TCI status list comprises:

Configuring a first activated TCI state for the terminal device;

The first TCI state list is generated according to the first activated TCI state.

6. The method according to claim 5, characterized in that the method further comprises:

Configure a period duration for the reference signal of the first activated TCI state.

7. The method according to claim 5 or 6, characterized in that the reference signal of the first activated TCI state comprises any one of the following:

8. The method according to claim 5, characterized in that the first activated TCI state is used to indicate that the time for switching the TCI state list is a fixed delay interval;

The fixed delay interval is smaller than a duration threshold, or the fixed delay interval is smaller than a period of a reference signal of the first activated TCI state.

9. The method according to any one of claims 1 to 6, characterized in that the method further comprises:

Determine the TCI state switching capabilities supported by the terminal device;

The determining of the first TCI status list includes:

Determine a first TCI state list according to the TCI state switching capability supported by the terminal device.

10. The method according to claim 9 is characterized in that the TCI state switching capability includes: a capability of supporting fast switching of TCI states or a capability of supporting updating of a TCI state list.

11. The method according to any one of claims 1 to 6, characterized in that the method further comprises:

Receive a TCI status list update request sent by a terminal device;

The determining of the first TCI status list includes:

A first TCI status list is determined according to the TCI status list update request.

12. The method according to any one of claims 1 to 6, characterized in that the method further comprises:

A first indication message is sent to the terminal device, where the first indication message is used to indicate updating the TCI status list.

13. A method for updating a transmission configuration indication (TCI) status list, comprising:

receiving first indication information from a network device, where the first indication information is used to update a TCI state list;

Determine, according to the first indication information, a first TCI state list, where the first TCI state list includes: a first activated TCI state, where the first activated TCI state includes reference signal configuration information, where the reference signal configuration information is used to configure a short period reference signal;

According to the first TCI state list, the switching adjustment time of the TCI state is determined.

14. The method according to claim 13, characterized in that the period of the short-period reference signal is less than a duration threshold;

The duration threshold is a threshold configured by the network device; or

15. The method according to claim 13, wherein determining the switching adjustment time of the TCI state according to the first TCI state list comprises:

Determining, from the first TCI state list, a first activated TCI state having a shortest period reference signal;

Based on the shortest period of the reference signal of the first activated TCI state, a switching adjustment time of the TCI state is determined.

16. The method according to claim 14, wherein determining the switching adjustment time of the TCI state according to the first TCI state list comprises:

Determining, from the first TCI state list, a first activated TCI state having a target period reference signal, wherein the target period is less than the duration threshold;

Based on the target period of the reference signal of the first activated TCI state, a switching adjustment time of the TCI state is determined.

17. The method according to claim 16, characterized in that the method further comprises:

According to the target period of the reference signal of the first activated TCI state, the configuration period of the reference signal on the service cell where the terminal device is located is modified.

18. The method according to claim 13, wherein determining the switching adjustment time of the TCI state according to the first TCI state list comprises:

When it is determined that the first TCI state list is a newly configured activated TCI state list, determining a first activated TCI state in the first TCI state list;

According to the first activated TCI state, a switching adjustment time of the TCI state is determined.

19. The method according to claim 18, wherein determining the switching adjustment time of the TCI state according to the first activated TCI state comprises:

Determining a period of a reference signal of the first activated TCI state;

The switching adjustment time of the TCI state is determined according to the period of the reference signal of the first activated TCI state.

20. The method according to claim 18, wherein determining the switching adjustment time of the TCI state according to the first activated TCI state comprises:

Determine, according to the first activated TCI state, a fixed delay interval for TCI state list switching, where the fixed delay interval is less than a duration threshold, or the fixed delay interval is less than a period duration of a reference signal of the first activated TCI state;

According to the fixed delay interval, the switching adjustment time of the TCI state is determined.

21. The method according to any one of claims 13 to 20, characterized in that the method further comprises:

Sending supported TCI state switching capabilities to the network device;

or

Send a TCI status list update request to the network device.

22. The method according to claim 21 is characterized in that the TCI state switching capability includes: a capability to support fast switching of TCI states or a capability to support updating of a TCI state list.

23. The method according to any one of claims 13 to 20, characterized in that the method further comprises:

Performing a switching adjustment work of the TCI state within the switching adjustment time;

When the handover adjustment work is completed, starting from the end slot of the handover adjustment time, it is allowed to receive downlink information using the determined first activated TCI state.

24. A transmission configuration indication TCI status list updating device, characterized by comprising:

The processing module determines a first TCI state list, where the first TCI state list includes: a first activated TCI state, where the first activated TCI state includes reference signal configuration information, and the reference signal configuration information is used to configure a short-cycle reference signal.

25. The device according to claim 24, characterized in that the period of the short-period reference signal is less than a duration threshold;

The duration threshold is a threshold configured by the network device; or

26. The device according to claim 24, characterized in that the processing module is specifically used to:

27. The device according to claim 25, characterized in that the processing module is specifically used for:

28. The device according to claim 24, characterized in that the processing module is specifically used to:

Configuring a first activated TCI state for the terminal device;

29. The device according to claim 28 is characterized in that the processing module is also used to configure a period duration for the reference signal of the first activated TCI state.

30. The device according to claim 28 or 29, wherein the reference signal of the first activated TCI state comprises any one of the following:

31. The device according to claim 28, wherein the first activated TCI state is used to indicate that the time for switching the TCI state list is a fixed delay interval;

The fixed delay interval is smaller than a duration threshold, or the fixed delay interval is smaller than a period duration of a reference signal of the first activated TCI state.

32. The device according to any one of claims 24-29, characterized in that the processing module is further used to determine the TCI state switching capability supported by the terminal device;

The processing module is used to determine the first TCI status list, specifically:

The processing module is specifically used to determine the first TCI state list according to the TCI state switching capability supported by the terminal device.

33. The device according to claim 32 is characterized in that the TCI state switching capability includes: the ability to support fast switching of TCI states or the ability to support updating of TCI state lists.

34. The device according to any one of claims 24 to 29, further comprising: a receiving module;

The receiving module is used to receive a TCI status list update request sent by a terminal device;

The processing module is specifically configured to determine a first TCI status list according to the TCI status list update request.

35. The device according to any one of claims 24 to 29, further comprising:

A sending module is used to send a first indication message to a terminal device, wherein the first indication message is used to indicate an update of a TCI status list.

36. A transmission configuration indication TCI status list updating device, characterized by comprising:

A receiving module, configured to receive first indication information from a network device, wherein the first indication information is used to update a TCI status list;

a processing module, configured to determine a first TCI state list according to the first indication information, where the first TCI state list includes: a first activated TCI state, where the first activated TCI state includes reference signal configuration information, where the reference signal configuration information is used to configure a short period reference signal;

The processing module is also used to determine the switching adjustment time of the TCI state according to the first TCI state list.

37. The device according to claim 36, characterized in that the period of the short-period reference signal is less than a duration threshold;

The duration threshold is a threshold configured by the network device; or

38. The device according to claim 36, characterized in that the processing module is specifically used for:

Determining, from the first TCI state list, a first activated TCI state of a reference signal having a shortest period;

39. The device according to claim 37, characterized in that the processing module is specifically used to:

Determining, from the first TCI state list, a first activated TCI state of a reference signal having a target period, wherein the target period is less than the duration threshold;

40. The device according to claim 39 is characterized in that the processing module is also used to modify the configuration period of the reference signal on the service cell where the terminal device is located according to the target period of the reference signal of the first activated TCI state.

41. The device according to claim 36, characterized in that the processing module is specifically used to:

42. The device according to claim 41, wherein the processing module is used to determine the switching adjustment time of the TCI state according to the first activated TCI state, specifically:

The processing module is specifically used for:

Determining a period of a reference signal of the first activated TCI state;

43. The device according to claim 41, wherein the processing module is used to determine the switching adjustment time of the TCI state according to the first activated TCI state, specifically:

The processing module is specifically used for:

44. The device according to any one of claims 36 to 43, further comprising:

A sending module, used for sending the supported TCI state switching capability to the network device;

or

A sending module is used to send a TCI status list update request to the network device.

45. The device according to claim 44 is characterized in that the TCI state switching capability includes: the ability to support fast switching of TCI states or the ability to support updating of TCI state lists.

46. The device according to any one of claims 36-43 is characterized in that the processing module is also used to perform switching adjustment of the TCI state within the switching adjustment time. When the switching adjustment work is completed, starting from the end time slot of the switching adjustment time, it is allowed to receive downlink information using the determined first activated TCI state.

47. A network device, comprising:

Interfaces for communication between processor, memory, transceiver and terminal equipment;

The memory stores computer-executable instructions;

The processor executes the computer-executable instructions stored in the memory, so that the processor performs the method according to any one of claims 1 to 12.

48. A terminal device, comprising:

Interfaces for processors, memories, transceivers, and network devices to communicate;

The memory stores computer-executable instructions;

The processor executes the computer-executable instructions stored in the memory, so that the processor performs the method according to any one of claims 13 to 23.

49. A computer-readable storage medium, characterized in that the computer-readable storage medium stores computer-executable instructions, which are used to implement the method according to any one of claims 1 to 12 when the computer-executable instructions are executed by a processor.

50. A computer-readable storage medium, characterized in that the computer-readable storage medium stores computer-executable instructions, and when the computer-executable instructions are executed by a processor, they are used to implement the method as described in any one of claims 13 to 23 above.

51. A computer program product, comprising: program instructions, characterized in that when the program instructions are executed by a processor, they are used to implement the method as described in any one of claims 1 to 12 above.

52. A computer program product, comprising: program instructions, characterized in that when the program instructions are executed by a processor, they are used to implement the method as described in any one of claims 13-23 above.