WO2024092834A1

WO2024092834A1 - Method for determining switching delay and apparatus

Info

Publication number: WO2024092834A1
Application number: PCT/CN2022/130142
Authority: WO
Inventors: 周锐
Original assignee: 北京小米移动软件有限公司
Priority date: 2022-11-04
Filing date: 2022-11-04
Publication date: 2024-05-10
Also published as: CN115997459A

Abstract

Disclosed in embodiments of the present invention are a method for determining a switching delay and an apparatus, which can be applied to the technical field of communications. The method executed by a network side device comprises: in response to determining that a transmission configuration indicator state (TCI state) needs to be switched to a first target TCI state and a second target TCI state, determining a switching delay according to the first target TCI state and the second target TCI state. Therefore, a switching delay for switching a TCI state to two TCI states can be determined.

Description

Method and device for determining switching delay

Technical Field

The present disclosure relates to the field of communication technology, and in particular to a method and device for determining a switching delay.

Background technique

In the related art, in the switching of the transmission configuration indicator (TCI) state (TCI state), only the switching of a single TCI state is considered, and the switching delay of a single TCI state is calculated, but the situation where the TCI state is switched to two TCI states is not considered. Therefore, how to calculate the switching delay when switching to two TCI states is an urgent problem to be solved.

Summary of the invention

The embodiments of the present disclosure provide a method and device for determining a switching delay, which can determine the switching delay of a TCI state switching to two TCI states.

In a first aspect, an embodiment of the present disclosure provides a method for determining a switching delay, which is executed by a network side device. The method includes: in response to determining that a transmission configuration indication state TCI state needs to be switched to a first target TCI state and a second target TCI state, determining the switching delay according to the first target TCI state and the second target TCI state.

In this technical solution, in response to determining that the transmission configuration indication state TCI state needs to be switched to a first target TCI state and a second target TCI state, the network side device determines the switching delay according to the first target TCI state and the second target TCI state. Thus, the switching delay of the TCI state switching to the two TCI states can be determined.

In a second aspect, an embodiment of the present disclosure provides another method for determining a switching delay, which is executed by a terminal device, and the method includes: receiving switching configuration information sent by a network side device, wherein the switching configuration information is used to instruct the terminal device to use a first target TCI state and a second target TCI state for transmission; receiving scheduling information sent by the network side device after the switching delay, wherein the scheduling information is used to schedule the terminal device for uplink transmission and/or downlink transmission, and the switching delay is determined by the network side device based on the first target TCI state and the second target TCI state.

In a third aspect, an embodiment of the present disclosure provides a communication device, which has some or all of the functions of the network side device in the method described in the first aspect above. For example, the functions of the communication device may have some or all of the functions in the embodiments of the present disclosure, or may have the functions of implementing any one of the embodiments of the present disclosure alone. The functions may be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above functions.

In one implementation, the structure of the communication device may include a transceiver module and a processing module, and the processing module is configured to support the communication device to perform the corresponding functions in the above method. The transceiver module is used to support communication between the communication device and other devices. The communication device may also include a storage module, which is coupled to the transceiver module and the processing module, and stores computer programs and data necessary for the communication device.

In one implementation, the communication device includes: a processing module, configured to determine a switching delay in response to determining that a transmission configuration indication state TCI state needs to be switched to a first target TCI state and a second target TCI state according to the first target TCI state and the second target TCI state.

In a fourth aspect, an embodiment of the present disclosure provides another communication device, which has some or all of the functions of the terminal device in the method example described in the second aspect above, such as the functions of the communication device may have some or all of the functions in the embodiments of the present disclosure, or may have the functions of implementing any one of the embodiments of the present disclosure alone. The functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above functions.

In one implementation, the communication device includes: a transceiver module, configured to receive switching configuration information sent by a network side device, wherein the switching configuration information is used to instruct the terminal device to use a first target TCI state and a second target TCI state for transmission; the transceiver module is also configured to receive scheduling information sent by the network side device after a switching delay, wherein the scheduling information is used to schedule the terminal device to perform uplink transmission and/or downlink transmission, and the switching delay is determined by the network side device based on the first target TCI state and the second target TCI state.

In a fifth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor. When the processor calls a computer program in a memory, the method described in the first aspect is executed.

In a sixth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor. When the processor calls a computer program in a memory, the method described in the second aspect is executed.

In the seventh aspect, an embodiment of the present disclosure provides a communication device, which includes a processor and a memory, in which a computer program is stored; the processor executes the computer program stored in the memory so that the communication device executes the method described in the first aspect above.

In an eighth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor and a memory, in which a computer program is stored; the processor executes the computer program stored in the memory so that the communication device executes the method described in the second aspect above.

In a ninth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor and an interface circuit, wherein the interface circuit is used to receive code instructions and transmit them to the processor, and the processor is used to run the code instructions to enable the device to execute the method described in the first aspect above.

In a tenth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor and an interface circuit, wherein the interface circuit is used to receive code instructions and transmit them to the processor, and the processor is used to run the code instructions to enable the device to execute the method described in the second aspect above.

In the eleventh aspect, an embodiment of the present disclosure provides a system for determining a switching delay, the system comprising the communication device described in the third aspect and the communication device described in the fourth aspect, or the system comprising the communication device described in the fifth aspect and the communication device described in the sixth aspect, or the system comprising the communication device described in the seventh aspect and the communication device described in the eighth aspect, or the system comprising the communication device described in the ninth aspect and the communication device described in the tenth aspect.

In a twelfth aspect, an embodiment of the present invention provides a computer-readable storage medium for storing instructions used by the above-mentioned network side device, and when the instructions are executed, the network side device executes the method described in the above-mentioned first aspect.

In a thirteenth aspect, an embodiment of the present invention provides a readable storage medium for storing instructions for the above-mentioned terminal device, and when the instructions are executed, the terminal device executes the method described in the above-mentioned second aspect.

In a fourteenth aspect, the present disclosure further provides a computer program product comprising a computer program, which, when executed on a computer, enables the computer to execute the method described in the first aspect above.

In a fifteenth aspect, the present disclosure further provides a computer program product comprising a computer program, which, when executed on a computer, enables the computer to execute the method described in the second aspect above.

In a sixteenth aspect, the present disclosure provides a chip system, which includes at least one processor and an interface, and is used to support a network-side device to implement the functions involved in the first aspect, for example, to determine or process at least one of the data and information involved in the above method. In one possible design, the chip system also includes a memory, and the memory is used to store computer programs and data necessary for the network-side device. The chip system can be composed of a chip, or it can include a chip and other discrete devices.

In a seventeenth aspect, the present disclosure provides a chip system, which includes at least one processor and an interface, for supporting a terminal device to implement the functions involved in the second aspect, for example, determining or processing at least one of the data and information involved in the above method. In a possible design, the chip system also includes a memory, which is used to store computer programs and data necessary for the terminal device. The chip system can be composed of a chip, or it can include a chip and other discrete devices.

In an eighteenth aspect, the present disclosure provides a computer program, which, when executed on a computer, enables the computer to execute the method described in the first aspect.

In a nineteenth aspect, the present disclosure provides a computer program which, when executed on a computer, enables the computer to execute the method described in the second aspect.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the background technology, the drawings required for use in the embodiments of the present disclosure or the background technology will be described below.

FIG1 is an architecture diagram of a communication system provided by an embodiment of the present disclosure;

FIG2 is a schematic diagram of a format of a MAC CE for TCI state activation/deactivation provided by an embodiment of the present disclosure;

FIG3 is a schematic diagram of a format of a MAC CE for enhanced TCI state activation/deactivation provided by an embodiment of the present disclosure;

FIG4 is a flow chart of a method for determining a switching delay provided by an embodiment of the present disclosure;

FIG5 is a flow chart of a measurement configuration method provided by an embodiment of the present disclosure;

FIG6 is a flow chart of another measurement configuration method provided by an embodiment of the present disclosure;

FIG7 is a flow chart of another method for determining a switching delay provided by an embodiment of the present disclosure;

FIG8 is a flowchart of another method for determining a switching delay provided in an embodiment of the present disclosure;

FIG9 is a flowchart of another method for determining a switching delay provided in an embodiment of the present disclosure;

FIG10 is a flowchart of another method for determining a switching delay provided in an embodiment of the present disclosure;

FIG11 is a flowchart of another method for determining a switching delay provided in an embodiment of the present disclosure;

FIG12 is a flowchart of another measurement configuration method provided by an embodiment of the present disclosure;

FIG13 is a structural diagram of a communication device provided in an embodiment of the present disclosure;

FIG14 is a structural diagram of another communication device provided in an embodiment of the present disclosure;

FIG. 15 is a schematic diagram of the structure of a chip provided in an embodiment of the present disclosure.

Detailed ways

In order to better understand a method and device for determining a switching delay disclosed in an embodiment of the present disclosure, a communication system to which the embodiment of the present disclosure is applicable is first described below.

Please refer to FIG. 1 , which is a schematic diagram of the architecture of a communication system provided by an embodiment of the present disclosure. The communication system may include, but is not limited to, a network-side device and a terminal device. The number and form of the devices shown in FIG. 1 are only used as examples and do not constitute a limitation on the embodiments of the present disclosure. In actual applications, two or more network-side devices and two or more terminal devices may be included. The communication system 10 shown in FIG. 1 includes, for example, a network-side device 101 and a terminal device 102.

It should be noted that the technical solutions of the embodiments of the present disclosure can be applied to various communication systems, such as long term evolution (LTE) system, fifth generation (5G) mobile communication system, 5G new radio (NR) system, or other future new mobile communication systems.

The network side device 101 in the embodiment of the present disclosure is an entity on the network side for transmitting or receiving signals. For example, the network side device 101 may be an evolved NodeB (eNB), a transmission point (TRP), a next generation NodeB (gNB) in an NR system, a base station in other future mobile communication systems, or an access node in a wireless fidelity (WiFi) system. The embodiment of the present disclosure does not limit the specific technology and specific device form adopted by the base station. The base station provided in the embodiment of the present disclosure may be composed of a central unit (CU) and a distributed unit (DU), wherein the CU may also be referred to as a control unit. The CU-DU structure may be used to split the base station, such as the protocol layer of the base station, and the functions of some protocol layers are placed in the CU for centralized control, and the functions of the remaining part or all of the protocol layers are distributed in the DU, and the DU is centrally controlled by the CU.

The terminal device 102 in the disclosed embodiment is an entity on the user side for receiving or transmitting signals, such as a mobile phone. The terminal device may also be referred to as a terminal device (terminal), a user equipment (UE), a mobile station (MS), a mobile terminal device (MT), etc. The terminal device may be a car with communication function, a smart car, a mobile phone (mobile phone), a wearable device, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in smart grid (smart grid), a wireless terminal device in transportation safety (transportation safety), a wireless terminal device in a smart city (smart city), a wireless terminal device in a smart home (smart home), etc. The embodiments of the present disclosure do not limit the specific technology and specific device form adopted by the terminal device.

It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution provided by the embodiment of the present disclosure. A person skilled in the art can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution provided by the embodiment of the present disclosure is also applicable to similar technical problems.

In addition, in order to facilitate understanding of the embodiments of the present disclosure, the following points are explained.

First, in the embodiments of the present disclosure, "used to indicate" may include being used to indicate directly or indirectly. When describing that a certain information is used to indicate A, it may include that the information directly indicates A or indirectly indicates A, but it does not mean that the information must carry A.

The information indicated by the information is called the information to be indicated. In the specific implementation process, there are many ways to indicate the information to be indicated, such as but not limited to, directly indicating the information to be indicated, such as the information to be indicated itself or the index of the information to be indicated. The information to be indicated can also be indirectly indicated by indicating other information, wherein there is an association between the other information and the information to be indicated. It is also possible to indicate only a part of the information to be indicated, while the other parts of the information to be indicated are known or agreed in advance. For example, the indication of specific information can also be achieved by means of the arrangement order of each information agreed in advance (such as specified by the protocol), thereby reducing the indication overhead to a certain extent.

The information to be indicated can be sent as a whole or divided into multiple sub-information and sent separately, and the sending period and/or sending time of these sub-information can be the same or different. The specific sending method is not limited in this disclosure. Among them, the sending period and/or sending time of these sub-information can be pre-defined, for example, pre-defined according to a protocol.

Second, in the present disclosure, the first, second and various numerical numbers (eg, "#1", "#2") are only used for the convenience of description and are not used to limit the scope of the embodiments of the present disclosure. For example, to distinguish different information.

Third, the “protocol” involved in the embodiments of the present disclosure may refer to a standard protocol in the communication field, for example, it may include an LTE protocol, a NR protocol, a WLAN protocol, and related protocols in other communication systems, which is not limited in the present disclosure.

Fourth, the embodiments of the present disclosure list multiple implementation methods to clearly illustrate the technical solutions of the embodiments of the present disclosure. Of course, those skilled in the art can understand that the multiple embodiments provided by the embodiments of the present disclosure can be executed separately, or can be executed together with the methods of other embodiments of the embodiments of the present disclosure, or can be executed together with some methods in other related technologies separately or in combination; the embodiments of the present disclosure do not limit this.

In the evolution of the fifth generation (5G), due to the use of beamforming technology in the FR2 millimeter wave band, the downlink beam of the network-side device can form downlink transmission beams in different directions through the beamforming capability of the base station. TCI state describes the state of the downlink transmission beam of the network-side device, including the TCI state identifier ID and the quasi-co-location (QCL) relationship. The terminal device measures the reference signal of the QCL-D relationship of the TCI state, obtains the layer 1 received reference signal power (layer1-referencesignal received power, L1-RSRP) of the corresponding reference signal, and reports it to the network-side device.

The network-side device transmits the downlink signal by selecting the downlink beam with high L1-RSRP received signal power. The network-side device sends the instruction of switching TCI state to the terminal device through radio resource control (RRC) or medium access control-control element (MAC-CE) or downlink control information (DCI). After receiving the instruction, the terminal device performs downlink reception on the downlink beam of the corresponding TCI state, thereby realizing beam management.

When the network-side device needs to switch the downlink beam, the higher layer (MAC layer) will issue a TCI state activation/deactivation command. After receiving the command from the higher layer, the terminal device will need a specific switching time to complete the corresponding TCI state switching. After the switching time is completed, the terminal device can use the new TCI state to receive the physical downlink control channel (PDCCH) and the physical downlink shared channel (PDSCH).

In the Third Generation Partnership Project (3GPP) version 16 (Rel-16), the concept of multi-transmit-receive point (mTRP) was introduced, that is, multi-TRP transmission, and two control methods of single downlink control signaling (single-DCI, S-DCI) and multiple downlink control signaling (Multi-DCI, M-DCI) were introduced. The related technology only supports multi-TRP transmission of two TRPs. Among them, S-DCI controls the update and control of two TCI states through one DCI, and for this purpose, the enhanced TCI state activation/deactivation instructions are introduced. The traditional TCI state activation/deactivation can only activate and deactivate a single TCI state (the corresponding MAC CE signaling configuration is shown in Figure 2). Figure 2 shows a lot of Ti, i identifies the TCI state ID in the RRC signaling, and if the bit position of Ti is 1, it indicates that the TCI state ID is activated.

The enhanced TCI state activation/deactivation can simultaneously activate and deactivate a group of TCI states (the corresponding MAC CE signaling configuration is shown in Figure 3). There are two subscripts i and j under the TCI state ID. i identifies the 3-bit codepoint of the TCI field in the DCI corresponding to this TCI state ID. For example, i is 0, corresponding to codepoint 000; i is 1, corresponding to codepoint 001... The subscript j identifies that the TCI state ID is the jth one in at least one TCI state ID corresponding to the i-th codepoint. For example, j is 1 to identify the first one, and j is 2 to identify the second one. If the subscript is 0, 1 identifies the first TCI state ID corresponding to codepoint 000.

Among them, each group of TCI states can be 1 or 2 TCI states, depending on the configuration of the network side equipment. The terminal device can receive PDSCH to TRP1 and TRP2 at the same time.

In traditional TCI state switching, only a single TCI state switching instruction is considered. The current single TCI state switching delay requirements are as follows: Formula 1 and Formula 2 are defined according to the specific switching situation.

Wherein, when the target TCI state of the switching is a TCI state unknown to the terminal device, the switching delay (MAC CE activation time) is calculated using the following formula 1. The target TCI state of the switching is a TCI state unknown to the terminal device, which can be a measurement result that the network side device does not receive the reference signal corresponding to the target TCI state reported by the terminal device within a specific time before sending the switching configuration information to the terminal device. The specific time can be, for example, 1280ms.

Formula 1: Switching delay Ts=T _HARQ +3Ti+TO _uk *(T _first-SSB +T _SSB-proc )/time slot length;

Wherein, T _HARQ is the time interval between downlink signal transmission and completion of measurement report reception, Ti is the number of time slots in each frame under the subcarrier spacing corresponding to downlink signal transmission, T _first-SSB is the time difference from the terminal device demodulating the media access control element MAC CE to the first processable synchronization signal block SSB, T _SSB-proc = 2ms;

Wherein, if the reference signal for which the terminal device performs reference signal measurement is a channel state information reference signal CSI-RS, TO _uk is 1;

If the reference signal used by the terminal device to perform reference signal measurement is SSB, TO _uk is 0.

Wherein, when the target TCI state of the switching is a TCI state known to the terminal device, the switching delay (MAC CE activation time) is calculated using the following formula 2. The target TCI state of the switching is a TCI state known to the terminal device, which can be a measurement result of a reference signal corresponding to the target TCI state reported by the terminal device received by the network side device within a specific time before sending the switching configuration information to the terminal device. The specific time can be, for example, 1280ms.

Formula 2: Switching delay Ts=T _HARQ +3Ti+TO _k *(T _first-SSB +T _SSB-proc )/time slot length;

Among them, if the target TCI state is in the activated TCI state list, TO _k is 0; if the target TCI state is not in the activated TCI state list, TO _k is 1.

However, there are no relevant requirements for the switching delay of the dual TCI state introduced based on the new S-DCI. Therefore, the network-side device cannot determine the switching delay of the terminal device and cannot perform corresponding scheduling.

Based on this, in an embodiment of the present disclosure, a method for determining a switching delay is provided, where a network-side device determines that a transmission configuration indication state TCI state needs to be switched to a first target TCI state and a second target TCI state, and determines a switching delay according to the first target TCI state and the second target TCI state. Thus, a switching delay of switching a TCI state to two TCI states can be determined.

A method and device for determining a switching delay provided by the present disclosure are described in detail below with reference to the accompanying drawings.

Please refer to FIG. 4 , which is a flow chart of a method for determining a switching delay provided in an embodiment of the present disclosure.

As shown in FIG4 , the method is performed by a network side device, and the method may include but is not limited to the following steps:

S41: In response to determining that the transmission configuration indication state TCI state needs to be switched to a first target TCI state and a second target TCI state, a switching delay is determined according to the first target TCI state and the second target TCI state.

In the disclosed embodiment, the network side device can determine the current TCI transmission state and the target TCI transmission state, and the switching scenario can be the switching from a single TCI state to two TCI states, or from two TCI states to two TCI states, and so on.

Optionally, the network side device may first determine whether TCIstate switching is required.

It is understandable that the network side device can determine whether the TCI state needs to be switched to the first target TCI state and the second target TCI state based on the L1-RSRP reported by the terminal device, or based on other conditions, such as terminal device request, conditions agreed upon in the protocol, etc.

It can be understood that in the case of switching from a single TCI state to two TCI states, the network side device adopts enhanced TCI state activation/deactivation (activation/deactivation) and uses the enhanced TCI state activation/deactivation type MAC CE, as shown in Figure 3.

Correspondingly, the MAC CE of a single TCI state before the switch activates N TCI states on the 128 TCI states configured by RRC, where N can be up to 8. For the two target TCI states to be switched, the network side device needs to perform different switching delay configurations based on 1 or 2 of the two target TCI states and their corresponding relationship with the maximum 8 activated TCI states before the switch to ensure that the new TCI state can be used to schedule the terminal device after the switch is completed.

Based on this, the network side device can determine the switching delay according to the first target TCI state and the second target TCI state.

It can be understood that, referring to the above description, in the traditional TCI state switching, when only a single TCI state switching instruction is considered, the

calculation formulas

1 and 2 of the single TCI state switching delay are defined according to the specific switching situation, and are related to whether the target TCI state after the switch is a TCI state known to the terminal device.

The target TCI state of the switching is a TCI state known to the terminal device, which may be a measurement result of a reference signal corresponding to the target TCI state reported by the terminal device received by the network side device within a specific time before the network side device sends the switching configuration information to the terminal device. The specific time may be, for example, 1280ms.

On the contrary, the target TCI state of switching is a TCI state unknown to the terminal device, which may be the measurement result of the reference signal corresponding to the target TCI state reported by the terminal device not being received by the network side device within a specific time before sending the switching configuration information to the terminal device.

In the disclosed embodiment, the network side device determines the switching delay based on the first target TCI state and the second target TCI state, and may also determine the switching delay based on whether the first target TCI state and the second target TCI state are TCI states known to the terminal device.

In some embodiments, the network side device determines the switching delay based on the first target TCI state and the second target TCI state, including: determining the types of the first target TCI state and the second target TCI state; determining the switching delay based on the types of the first target TCI state and the second target TCI state.

In the disclosed embodiment, the network side device can determine the types of the first target TCI state and the second target TCI state, for example: determine whether the first target TCI state and the second target TCI state are TCI states known to the terminal device.

Based on this, the network side device, after determining the types of the first target TCI state and the second target TCI state, further determines the switching delay according to the types of the first target TCI state and the second target TCI state.

In some embodiments, the network-side device determines the types of the first target TCI state and the second target TCI state, including:

In response to receiving a measurement result of a reference signal corresponding to a first target TCI state reported by a terminal device within a specific time before sending switching configuration information to the terminal device, determining that the type of the first target TCI state is a first type;

In response to not receiving a measurement result of a reference signal corresponding to a first target TCI state reported by the terminal device within a specific time before sending the switching configuration information to the terminal device, determining that the type of the first target TCI state is a second type;

In response to receiving a measurement result of a reference signal corresponding to a second target TCI state reported by the terminal device within a specific time before sending the switching configuration information to the terminal device, determining that the type of the second target TCI state is the first type;

In response to not receiving a measurement result of a reference signal corresponding to a second target TCI state reported by the terminal device within a specific time before sending switching configuration information to the terminal device, it is determined that the type of the second target TCI state is the second type.

In the disclosed embodiment, the network side device receives the measurement result of the reference signal corresponding to the first target TCI state reported by the terminal device within a specific time before sending the switching configuration information to the terminal device, and determines that the type of the first target TCI state is the first type, wherein the specific time may be 1280ms, and the first type may be a TCI state known to the terminal device.

In the disclosed embodiment, the network side device does not receive the measurement result of the reference signal corresponding to the first target TCI state reported by the terminal device within a specific time before sending the switching configuration information to the terminal device, and determines that the type of the first target TCI state is the second type, wherein the specific time may be 1280ms, and the first type may be a TCI state unknown to the terminal device.

In the disclosed embodiment, the network side device receives the measurement result of the reference signal corresponding to the second target TCI state reported by the terminal device within a specific time before sending the switching configuration information to the terminal device, and determines that the type of the second target TCI state is the first type, wherein the specific time may be 1280ms, and the first type may be a TCI state known to the terminal device.

In the disclosed embodiment, the network side device does not receive the measurement result of the reference signal corresponding to the second target TCI state reported by the terminal device within a specific time before sending the switching configuration information to the terminal device, and determines that the type of the second target TCI state is the second type, wherein the specific time may be 1280ms, and the second type may be a TCI state unknown to the terminal device.

It can be understood that, when the network side device determines the types of the first target TCI state and the second target TCI state, it can determine the switching delay according to the types of the first target TCI state and the second target TCI state.

In some embodiments, the network side device determines the switching delay according to the type of the first target TCI state and the second target TCI state, including at least one of the following:

In response to the first target TCI state and the second target TCI state being both of the first type, determining a switching delay according to a first calculation method;

In response to one of the first target TCI state and the second target TCI state being of the first type and the other being of the second type, determining a switching delay according to a second calculation method;

In response to the first target TCI state and the second target TCI state being both of the second type, determining a switching delay according to a third calculation method;

In response to the first target TCI state and the second target TCI state being both of the second type, and determining that the terminal device does not support simultaneous measurement and reporting of multiple reference signals, determining a switching delay according to a fourth calculation method;

In response to the fact that the types of the first target TCI state and the second target TCI state are both the second type, and it is determined that the terminal device supports simultaneous measurement and reporting of multiple reference signals, the switching delay is determined according to the fifth calculation method.

In the disclosed embodiment, the network side device can determine the switching delay according to the first calculation method when the types of the first target TCI state and the second target TCI state are both the first type.

In some embodiments, the first calculation method is: switching delay Ts=T _HARQ +3Ti+TO _k *(T _first-SSB +T _SSB-proc )/time slot length;

If both the first target TCI state and the second target TCI state are in the activated TCI state list, TO _k is 0;

If at least one of the first target TCI state and the second target TCI state is not in the activated TCI state list, TO _k is 1.

In the disclosed embodiment, the network side device can determine the switching delay according to the second calculation method when one of the first target TCI state and the second target TCI state is of the first type and the other is of the second type.

In some embodiments, the second calculation method is: switching delay Ts=max{T1, T2}; wherein, one of the first target TCI state and the second target TCI state of the first type uses T1 to calculate the switching delay, and one of the first target TCI state and the second target TCI state of the second type uses T2 to calculate the switching delay;

T1 = _THARQ + 3Ti + _TL1-RSRP + _TOuk * (Tfirst _-SSB + _TSSB-proc ) / time slot length;

T2 = _THARQ + 3Ti + _TOk * (Tfirst _-SSB + _TSSB-proc ) / time slot length;

Wherein, T _HARQ is the time interval between downlink signal transmission and completion of measurement report reception, Ti is the number of time slots in each frame under the subcarrier spacing corresponding to downlink signal transmission, T _L1-RSRP is the time for the terminal device to perform reference signal measurement, T _first-SSB is the time difference from the terminal device demodulating MAC CE to the first processable SSB, T _SSB-proc = 2ms;

Wherein, if one of the first target TCI state and the second target TCI state of the first type is in the activated TCI state list, TO _k is 0;

If one of the first target TCI state and the second target TCI state of the first type is not in the activated TCI state list, TO _k is 1;

If the reference signal for which the terminal device performs reference signal measurement is a channel state information reference signal CSI-RS, TO _uk is 1;

In the disclosed embodiment, the network side device can determine the switching delay according to the third calculation method when the types of the first target TCI state and the second target TCI state are both the second type.

In some embodiments, the third calculation method is:

Switching delay Ts = T _HARQ + 3Ti + T _L1-RSRP1 + T _L1-RSRP2 + (TO _uk1 + TO _uk2 ) * (T _first-SSB + T _SSB-proc ) / time slot length;

Wherein, T _HARQ is the time interval between downlink signal transmission and completion of measurement report reception, Ti is the number of time slots in each frame under the subcarrier spacing corresponding to the downlink signal transmission, T _L1-RSRP1 is the time for the terminal device to perform reference signal measurement on the transceiver point TRP1, T _L1-RSRP2 is the time for the terminal device to perform reference signal measurement on TRP2, T _first-SSB is the time difference from the terminal device demodulating the media access control element MAC CE to the first processable synchronization signal block SSB, T _SSB-proc = 2ms;

If the reference signal for the terminal device to perform reference signal measurement on TRP1 is a channel state information reference signal CSI-RS, TO _uk1 is 1;

If the reference signal for the terminal device to perform reference signal measurement on TRP1 is SSB, TO _uk1 is 0;

If the reference signal for the terminal device to perform reference signal measurement on TRP2 is a channel state information reference signal CSI-RS, TO _uk21 is 1;

If the reference signal used by the terminal device to perform reference signal measurement on TRP2 is SSB, TO _uk2 is 0.

In the disclosed embodiment, the network side device may determine the switching delay according to the fourth calculation method when the types of the first target TCI state and the second target TCI state are both the second type and it is determined that the terminal device does not support simultaneous measurement and reporting of multiple reference signals.

In some embodiments, the fourth calculation method is:

In the disclosed embodiment, the network side device can determine the switching delay according to the fifth calculation method when the types of the first target TCI state and the second target TCI state are both the second type and it is determined that the terminal device supports simultaneous measurement and reporting of multiple reference signals.

In some embodiments, the fifth calculation method is:

Switching delay Ts=T _HARQ +3Ti+max{T _L1-RSRP1 +TO _uk1 *(T _first-SSB +T _SSB-proc ), T _L1-RSRP2 +TO _uk2 *(T _first-SSB +T _SSB-proc )}/time slot length;

Wherein, T _HARQ is the time interval between downlink signal transmission and completion of measurement report reception, Ti is the number of time slots in each frame under the subcarrier spacing corresponding to the downlink signal transmission, T _L1-RSRP1 is the time for the terminal device to perform reference signal measurement on TRP1, T _L1-RSRP2 is the time for the terminal device to perform reference signal measurement on TRP2, T _first-SSB is the time difference from the terminal device demodulating MAC CE to the first processable SSB, T _SSB-proc = 2ms;

If the reference signal for the terminal device to perform reference signal measurement on TRP2 is CSI-RS, TO _uk2 is 1;

It can be understood that in the embodiments of the present disclosure, the network side device can determine whether the terminal device supports simultaneous measurement and reporting of multiple reference signals. For example, it can determine whether the terminal device supports simultaneous measurement and reporting of multiple reference signals through terminal device capability reporting.

In some embodiments, a network-side device receives capability information reported by a terminal device, wherein the capability information is used to indicate whether the terminal device supports simultaneous measurement and reporting of multiple reference signals.

In some embodiments, the capability information is one bit. When the bit is a first value, it indicates that the terminal device supports simultaneous measurement and reporting of multiple reference signals; when the bit is a second value, it indicates that the terminal device does not support simultaneous measurement and reporting of multiple reference signals.

In the disclosed embodiment, the network side device receives capability information reported by the terminal device. The capability information may be a bit. When the bit is a first value, it indicates that the terminal device supports simultaneous measurement and reporting of multiple reference signals. When the bit is a second value, it indicates that the terminal device does not support simultaneous measurement and reporting of multiple reference signals.

Exemplarily, when the bit position is "1", it indicates that the terminal device supports simultaneous measurement and reporting of multiple reference signals; when the bit position is "0", it indicates that the terminal device does not support simultaneous measurement and reporting of multiple reference signals.

Exemplarily, when the bit position is "0", it indicates that the terminal device supports simultaneous measurement and reporting of multiple reference signals; when the bit position is "1", it indicates that the terminal device does not support simultaneous measurement and reporting of multiple reference signals.

By implementing the disclosed embodiment, the network side device determines the switching delay according to the first target TCI state and the second target TCI state in response to determining that the transmission configuration indication state TCI state needs to be switched to the first target TCI state and the second target TCI state. Thus, the switching delay of the TCI state switching to the two TCI states can be determined.

Please refer to FIG. 5 , which is a flow chart of a measurement configuration method provided in an embodiment of the present disclosure.

As shown in FIG5 , the method is performed by a network side device, and the method may include but is not limited to the following steps:

S51: In response to determining that the transmission configuration indication state TCI state needs to be switched to a first target TCI state and a second target TCI state, a switching delay is determined according to the first target TCI state and the second target TCI state.

S52: Send switching configuration information to the terminal device, wherein the switching configuration information is used to instruct the terminal device to use the first target TCI state and the second target TCI state for transmission.

In the disclosed embodiment, a network side device sends switching configuration information to a terminal device for instructing the terminal device to adopt a first target TCI state and a second target TCI state for transmission, wherein the network side device can send the switching configuration information to the terminal device by sending RRC or MAC CE or DCI to the terminal device.

By implementing the disclosed embodiment, in response to determining that the transmission configuration indicates that the state TCI state needs to be switched to the first target TCI state and the second target TCI state, the network side device determines the switching delay according to the first target TCI state and the second target TCI state, and sends switching configuration information to the terminal device, wherein the switching configuration information is used to instruct the terminal device to use the first target TCI state and the second target TCI state for transmission. Thus, the switching delay of the TCI state switching to the two TCI states can be determined, and the terminal device is instructed to use the first target TCI state and the second target TCI state for transmission.

Please refer to FIG. 6 , which is a flow chart of another measurement configuration method provided by an embodiment of the present disclosure.

As shown in FIG6 , the method is executed by a network side device, and the method may include but is not limited to the following steps:

S61: In response to determining that the transmission configuration indication state TCI state needs to be switched to a first target TCI state and a second target TCI state, a switching delay is determined according to the first target TCI state and the second target TCI state.

S62: Send switching configuration information to the terminal device, wherein the switching configuration information is used to instruct the terminal device to use the first target TCI state and the second target TCI state for transmission.

For the relevant description of S61 and S62, reference may be made to the relevant description in the above embodiment, which will not be repeated here.

S63: After the switching delay, sending scheduling information to the terminal device, wherein the scheduling information is used to schedule the terminal device to perform uplink transmission and/or downlink transmission.

In the disclosed embodiment, when the network side device determines the switching delay, it can send scheduling information to the terminal device after the switching delay, wherein the scheduling information is used to schedule the terminal device to perform uplink transmission and/or downlink transmission. Thus, it can be ensured that when the network side device schedules the terminal device to perform uplink transmission and/or downlink transmission, the terminal device has completed the switching of the TCI state, so that the terminal device can use the first target TCI state and the second target TCI state for transmission.

By implementing the disclosed embodiment, in response to determining that the transmission configuration indicates that the state TCI state needs to be switched to the first target TCI state and the second target TCI state, the network side device determines the switching delay based on the first target TCI state and the second target TCI state, and sends switching configuration information to the terminal device, wherein the switching configuration information is used to instruct the terminal device to use the first target TCI state and the second target TCI state for transmission, and after the switching delay, sends scheduling information to the terminal device, wherein the scheduling information is used to schedule the terminal device for uplink transmission and/or downlink transmission. Thus, the switching delay for the TCI state to switch to the two TCI states can be determined, and it can be ensured that when the network side device schedules the terminal device to perform uplink transmission and/or downlink transmission, the terminal device has completed the TCI state switching, so that the terminal device can use the first target TCI state and the second target TCI state for transmission, thereby achieving accurate scheduling of the terminal device and ensuring communication quality.

Please refer to FIG. 7 , which is a flow chart of another method for determining a switching delay provided in an embodiment of the present disclosure.

As shown in FIG. 7 , the method is performed by a network side device, and the method may include but is not limited to the following steps:

S71: In response to determining that the transmission configuration indication state TCI state needs to be switched to the first target TCI state and the second target TCI state, determine the types of the first target TCI state and the second target TCI state.

S72: In response to the first target TCI state and the second target TCI state being of the first type, determining the switching delay according to the first calculation method.

The first type and the second type can refer to the relevant description in the above embodiments, which will not be repeated here.

It should be noted that in the embodiments of the present disclosure, S61 and S63 can be implemented separately or in combination with any other steps in the embodiments of the present disclosure, for example, in combination with S41 and S42 and/or S51 to S53 in the embodiments of the present disclosure, and the embodiments of the present disclosure are not limited to this.

By implementing the disclosed embodiment, the network side device determines the types of the first target TCI state and the second target TCI state in response to determining that the transmission configuration indication state TCI state needs to be switched to the first target TCI state and the second target TCI state, and determines the switching delay according to the first calculation method in response to the types of the first target TCI state and the second target TCI state being both the first type. Thus, the switching delay of the TCI state switching to the two TCI states can be determined.

Please refer to FIG. 8 , which is a flowchart of another method for determining a switching delay provided in an embodiment of the present disclosure.

As shown in FIG8 , the method is executed by a network side device, and the method may include but is not limited to the following steps:

S81: In response to determining that the transmission configuration indication state TCI state needs to be switched to the first target TCI state and the second target TCI state, determine the types of the first target TCI state and the second target TCI state.

Among them, the relevant description of S81 can be found in the relevant description of the above embodiment, and will not be repeated here.

S82: In response to one of the first target TCI state and the second target TCI state being of the first type and the other being of the second type, determining the switching delay according to a second calculation method.

T2 = _THARQ + 3Ti + _TOk * (Tfirst _-SSB + _TSSB-proc ) / time slot length;

It should be noted that in the embodiments of the present disclosure, S71 and S73 can be implemented separately or in combination with any other steps in the embodiments of the present disclosure, for example, in combination with S41 and S42 and/or S51 to S53 in the embodiments of the present disclosure, and the embodiments of the present disclosure are not limited to this.

By implementing the disclosed embodiment, the network side device determines the types of the first target TCI state and the second target TCI state in response to determining that the transmission configuration indication state TCI state needs to be switched to the first target TCI state and the second target TCI state, and determines the switching delay according to the second calculation method in response to one of the first target TCI state and the second target TCI state being of the first type and the other being of the second type. Thus, the switching delay of the TCI state switching to the two TCI states can be determined.

Please refer to FIG. 9 , which is a flowchart of another method for determining a switching delay provided in an embodiment of the present disclosure.

As shown in FIG9 , the method is executed by a network side device, and the method may include but is not limited to the following steps:

S91: In response to determining that the transmission configuration indication state TCI state needs to be switched to the first target TCI state and the second target TCI state, determine the types of the first target TCI state and the second target TCI state.

Among them, the relevant description of S91 can be found in the relevant description of the above embodiment, and will not be repeated here.

S92: In response to the first target TCI state and the second target TCI state being both of the second type, determining the switching delay according to a third calculation method.

In some embodiments, the third calculation method is:

It should be noted that in the embodiments of the present disclosure, S81 and S83 can be implemented separately or in combination with any other steps in the embodiments of the present disclosure, for example, in combination with S41 and S42 and/or S51 to S53 in the embodiments of the present disclosure, and the embodiments of the present disclosure are not limited to this.

By implementing the disclosed embodiment, the network side device determines the types of the first target TCI state and the second target TCI state in response to determining that the transmission configuration indication state TCI state needs to be switched to the first target TCI state and the second target TCI state, and determines the switching delay according to the third calculation method in response to the types of the first target TCI state and the second target TCI state being both the second type. Thus, the switching delay of the TCI state switching to the two TCI states can be determined.

Please refer to FIG. 10 , which is a flowchart of another method for determining a switching delay provided in an embodiment of the present disclosure.

As shown in FIG10 , the method is executed by a network side device, and the method may include but is not limited to the following steps:

S101: In response to determining that the transmission configuration indication state TCI state needs to be switched to a first target TCI state and a second target TCI state, determine the types of the first target TCI state and the second target TCI state.

S102: In response to the first target TCI state and the second target TCI state being of the second type, and determining that the terminal device does not support simultaneous measurement and reporting of multiple reference signals, determine the switching delay according to the fourth calculation method.

In some embodiments, the fourth calculation method is:

It should be noted that in the embodiments of the present disclosure, S91 and S93 can be implemented separately or in combination with any other steps in the embodiments of the present disclosure, for example, they can be implemented in combination with S41 and S42 and/or S51 to S53 in the embodiments of the present disclosure, and the embodiments of the present disclosure are not limited to this.

By implementing the disclosed embodiment, the network side device determines the types of the first target TCI state and the second target TCI state in response to determining that the transmission configuration indication state TCI state needs to be switched to the first target TCI state and the second target TCI state, and in response to the types of the first target TCI state and the second target TCI state being both the second type, and determining that the terminal device does not support simultaneous measurement and reporting of multiple reference signals, determines the switching delay according to the fourth calculation method. Thus, the switching delay of the TCI state switching to the two TCI states can be determined.

Please refer to FIG. 11 , which is a flowchart of another method for determining a switching delay provided in an embodiment of the present disclosure.

As shown in FIG11 , the method is executed by a network side device, and the method may include but is not limited to the following steps:

S111: In response to determining that the transmission configuration indication state TCI state needs to switch to the first target TCI state and the second target TCI state, determine the types of the first target TCI state and the second target TCI state.

For the relevant description of S111, reference may be made to the relevant description in the above embodiment, which will not be repeated here.

S112: In response to the first target TCI state and the second target TCI state being of the second type, and determining that the terminal device supports simultaneous measurement and reporting of multiple reference signals, determine the switching delay according to the fifth calculation method.

In some embodiments, the fifth calculation method is:

It should be noted that in the embodiments of the present disclosure, S101 and S103 can be implemented separately or in combination with any other steps in the embodiments of the present disclosure, for example, in combination with S41 and S42 and/or S51 to S53 in the embodiments of the present disclosure, and the embodiments of the present disclosure are not limited to this.

By implementing the disclosed embodiment, the network side device determines the types of the first target TCI state and the second target TCI state in response to determining that the transmission configuration indication state TCI state needs to be switched to the first target TCI state and the second target TCI state, and in response to the types of the first target TCI state and the second target TCI state being both the second type, and determining that the terminal device supports simultaneous measurement and reporting of multiple reference signals, determines the switching delay according to the fifth calculation method. Thus, the switching delay of the TCI state switching to the two TCI states can be determined.

Please refer to FIG. 12 , which is a flowchart of another measurement configuration method provided by an embodiment of the present disclosure.

As shown in FIG. 12 , the method is executed by a terminal device, and the method may include but is not limited to the following steps:

S121: Receive switching configuration information sent by a network side device, wherein the switching configuration information is used to instruct the terminal device to use a first target TCI state and a second target TCI state for transmission.

In the disclosed embodiment, a terminal device may receive switching configuration information sent by a network side device to instruct the terminal device to use a first target TCI state and a second target TCI state for transmission, wherein the terminal device may receive the switching configuration information sent by the network side device by receiving RRC or MAC CE or DCI sent by the network side device.

S122: Receive scheduling information sent by the network side device after the switching delay, wherein the scheduling information is used to schedule the terminal device to perform uplink transmission and/or downlink transmission, and the switching delay is determined by the network side device based on the first target TCI state and the second target TCI state.

In the disclosed embodiment, the terminal device may receive scheduling information sent by the network side device after the switching delay, wherein the scheduling information is used to schedule the terminal device to perform uplink transmission and/or downlink transmission, and the switching delay is determined by the network side device according to the first target TCI state and the second target TCI state. Thus, it can be ensured that when the network side device schedules the terminal device to perform uplink transmission and/or downlink transmission, the terminal device has completed the switching of the TCI state, so that the terminal device can use the first target TCI state and the second target TCI state for transmission.

Among them, the switching delay is determined by the network side device according to the first target TCI state and the second target TCI state. Please refer to the relevant description in the above embodiments.

In some embodiments, the terminal device reports capability information to the network side device, wherein the capability information is used to indicate whether the terminal device supports simultaneous measurement and reporting of multiple reference signals.

In the disclosed embodiment, the terminal device reports capability information to the network side device. The capability information may be a bit. When the bit is a first value, it indicates that the terminal device supports simultaneous measurement and reporting of multiple reference signals. When the bit is a second value, it indicates that the terminal device does not support simultaneous measurement and reporting of multiple reference signals.

By implementing the disclosed embodiment, the terminal device receives the switching configuration information sent by the network side device, wherein the switching configuration information is used to instruct the terminal device to switch to the first target TCI state and the second target TCI state, and receives the configuration information sent by the network side device, wherein the configuration information is used to instruct the terminal device to use the first target TCI state and the second target TCI state for transmission after the switching delay, and the switching delay is determined by the network side device according to the first target TCI state and the second target TCI state. Thus, the terminal device can determine that after the switching delay, the first target TCI state and the second target TCI state are used for transmission, which can ensure the communication quality.

In the above-mentioned embodiments provided by the present disclosure, the methods provided by the embodiments of the present disclosure are introduced from the perspectives of terminal equipment and network side equipment respectively.

Please refer to Figure 13, which is a schematic diagram of the structure of a communication device 1 provided in an embodiment of the present disclosure. The communication device 1 shown in Figure 13 may include a transceiver module 11 and a processing module 13. The transceiver module may include a sending module and/or a receiving module, the sending module is used to implement a sending function, the receiving module is used to implement a receiving function, and the transceiver module may implement a sending function and/or a receiving function.

The communication device 1 may be a terminal device, a device in a terminal device, or a device that can be used in conjunction with a terminal device. Alternatively, the communication device 1 may be a network side device, a device in a network side device, or a device that can be used in conjunction with a network side device.

Communication device 1, configured on the network side device:

The device includes: a processing module 12.

The transceiver module 11 is configured to determine the switching delay in response to determining that the transmission configuration indication state TCI state needs to be switched to a first target TCI state and a second target TCI state according to the first target TCI state and the second target TCI state.

In some embodiments, the configuration further includes a transceiver module 11 .

The transceiver module 11 is configured to send switching configuration information to the terminal device, wherein the switching configuration information is used to instruct the terminal device to use the first target TCI state and the second target TCI state for transmission.

In some embodiments, the transceiver module 11 is further configured to send scheduling information to the terminal device after the switching delay, wherein the scheduling information is used to schedule the terminal device to perform uplink transmission and/or downlink transmission.

In some embodiments, the processing module 12 is further configured to determine that the type of the first target TCI state is the first type in response to receiving a measurement result of a reference signal corresponding to the first target TCI state reported by the terminal device within a specific time before sending the switching configuration information to the terminal device;

In some embodiments, the processing module 12 is further configured to perform at least one of the following:

In response to the first target TCI state and the second target TCI state being of the second type, and determining that the terminal device supports simultaneous measurement and reporting of multiple reference signals, the switching delay is determined according to the fifth calculation method.

In some embodiments, the first calculation method is:

Switching delay Ts = _THARQ + 3Ti + _TOk * (Tfirst _-SSB + _TSSB-proc ) / time slot length;

T2 = _THARQ + 3Ti + _TOk * (Tfirst _-SSB + _TSSB-proc ) / time slot length;

If one of the first target TCI state and the second target TCI state that is of the first type is in both the first target TCI state and the second target TCI state in the activated TCI state list, TO _k is 0;

In some embodiments, the third calculation method and the fourth calculation method are:

In some embodiments, the fifth calculation method is:

In some embodiments, the transceiver module 11 is further configured to receive capability information reported by a terminal device, wherein the capability information is used to indicate whether the terminal device supports simultaneous measurement and reporting of multiple reference signals.

The communication device 1 is configured in the terminal device:

The device includes: a transceiver module 11.

The transceiver module 11 is configured to receive switching configuration information sent by a network side device, wherein the switching configuration information is used to instruct the terminal device to use a first target TCI state and a second target TCI state for transmission.

The transceiver module 11 is also configured to receive scheduling information sent by the network side device after the switching delay, wherein the scheduling information is used to schedule the terminal device to perform uplink transmission and/or downlink transmission, and the switching delay is determined by the network side device based on the first target TCI state and the second target TCI state.

In some embodiments, the transceiver module 11 is further configured to report capability information to the network side device, wherein the capability information is used to indicate whether the terminal device supports simultaneous measurement and reporting of multiple reference signals.

Regarding the communication device 1 in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

The communication device 1 provided in the above embodiments of the present disclosure achieves the same or similar beneficial effects as the methods for determining the switching delay provided in some of the above embodiments, which will not be described in detail here.

Please refer to Figure 14, which is a schematic diagram of the structure of another communication device 1000 provided in an embodiment of the present disclosure. The communication device 1000 can be a terminal device, or a network side device, or a chip, a chip system, or a processor that supports the terminal device to implement the above method, or a chip, a chip system, or a processor that supports the network side device to implement the above method. The communication device 1000 can be used to implement the method described in the above method embodiment, and the details can be referred to the description in the above method embodiment.

The communication device 1000 may include one or more processors 1001. The processor 1001 may be a general-purpose processor or a dedicated processor, etc. For example, it may be a baseband processor or a central processing unit. The baseband processor may be used to process the communication protocol and the communication data, and the central processing unit may be used to control the communication device (such as a network side device, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute a computer program, and process the data of the computer program.

Optionally, the communication device 1000 may further include one or more memories 1002, on which a computer program 1004 may be stored, and the memory 1002 executes the computer program 1004 so that the communication device 1000 executes the method described in the above method embodiment. Optionally, data may also be stored in the memory 1002. The communication device 1000 and the memory 1002 may be provided separately or integrated together.

Optionally, the communication device 1000 may further include a transceiver 1005 and an antenna 1006. The transceiver 1005 may be referred to as a transceiver unit, a transceiver, or a transceiver circuit, etc., for implementing a transceiver function. The transceiver 1005 may include a receiver and a transmitter, the receiver may be referred to as a receiver or a receiving circuit, etc., for implementing a receiving function; the transmitter may be referred to as a transmitter or a transmitting circuit, etc., for implementing a transmitting function.

Optionally, the communication device 1000 may further include one or more interface circuits 1007. The interface circuit 1007 is used to receive code instructions and transmit them to the processor 1001. The processor 1001 executes the code instructions to enable the communication device 1000 to execute the method described in the above method embodiment.

The communication device 1000 is a network side device: the processor 1001 is used to execute S41 in FIG. 4 : S51 in FIG. 5 ; S61 in FIG. 6 ; S71 and S72 in FIG. 7 ; S81 and S82 in FIG. 8 ; S91 and S82 in FIG. 9 ; S101 and S102 in FIG. 10 ; S111 and S112 in FIG. 11 . The transceiver 1005 is used to execute S52 in FIG. 5 ; S62 and S63 in FIG. 6 .

The communication apparatus 1000 is a terminal device: the transceiver 1005 is used to execute S121 and S122 in FIG. 12 .

In one implementation, the processor 1001 may include a transceiver for implementing receiving and sending functions. For example, the transceiver may be a transceiver circuit, an interface, or an interface circuit. The transceiver circuit, interface, or interface circuit for implementing the receiving and sending functions may be separate or integrated. The above-mentioned transceiver circuit, interface, or interface circuit may be used for reading and writing code/data, or the above-mentioned transceiver circuit, interface, or interface circuit may be used for transmitting or delivering signals.

In one implementation, the processor 1001 may store a computer program 1003, which runs on the processor 1001 and enables the communication device 1000 to perform the method described in the above method embodiment. The computer program 1003 may be fixed in the processor 1001, in which case the processor 1001 may be implemented by hardware.

In one implementation, the communication device 1000 may include a circuit that can implement the functions of sending or receiving or communicating in the aforementioned method embodiments. The processor and transceiver described in the present disclosure may be implemented in an integrated circuit (IC), an analog IC, a radio frequency integrated circuit RFIC, a mixed signal IC, an application specific integrated circuit (ASIC), a printed circuit board (PCB), an electronic device, etc. The processor and transceiver may also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), N-type metal oxide semiconductor (NMOS), P-type metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

The communication device described in the above embodiments may be a terminal device or a network side device, but the scope of the communication device described in the present disclosure is not limited thereto, and the structure of the communication device may not be limited by FIG. 14. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be:

(1) Independent integrated circuit IC, or chip, or chip system or subsystem;

(2) having a set of one or more ICs, and optionally, the IC set may also include a storage component for storing data and computer programs;

(3) ASIC, such as modem;

(4) Modules that can be embedded in other devices;

(5) Receivers, terminal devices, intelligent terminal devices, cellular phones, wireless devices, handheld devices, mobile units, vehicle-mounted devices, network devices, cloud devices, artificial intelligence devices, etc.;

(6)Others

For the case where the communication device may be a chip or a chip system, please refer to FIG. 15 , which is a structural diagram of a chip provided in an embodiment of the present disclosure.

The chip 1100 includes a processor 1101 and an interface 1103. The number of the processor 1101 may be one or more, and the number of the interface 1103 may be multiple.

For the case where the chip is used to implement the functions of the terminal device in the embodiment of the present disclosure:

The interface 1103 is used to receive code instructions and transmit them to the processor.

The processor 1101 is configured to execute code instructions to execute the method for determining the switching delay as described in some of the above embodiments.

For the case where the chip is used to implement the functions of the network side device in the embodiment of the present disclosure:

Optionally, the chip 1100 further includes a memory 1102, and the memory 1102 is used to store necessary computer programs and data.

Those skilled in the art may also understand that the various illustrative logical blocks and steps listed in the embodiments of the present disclosure may be implemented by electronic hardware, computer software, or a combination of both. Whether such functions are implemented by hardware or software depends on the specific application and the design requirements of the entire system. Those skilled in the art may use various methods to implement the described functions for each specific application, but such implementation should not be understood as exceeding the scope of protection of the embodiments of the present disclosure.

An embodiment of the present disclosure also provides a system for determining a switching delay, the system comprising a communication device as a terminal device and a communication device as a network side device in the embodiment of FIG. 13 , or the system comprising a communication device as a terminal device and a communication device as a network side device in the embodiment of FIG. 14 .

The present disclosure also provides a readable storage medium having instructions stored thereon, which implement the functions of any of the above method embodiments when executed by a computer.

The present disclosure also provides a computer program product, which implements the functions of any of the above method embodiments when executed by a computer.

In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented by software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs. When the computer program is loaded and executed on a computer, the process or function described in the embodiment of the present disclosure is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer program can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more available media integrated. The available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a high-density digital video disc (DVD)), or a semiconductor medium (e.g., a solid state disk (SSD)), etc.

Those skilled in the art can understand that the various numerical numbers such as first and second involved in the present disclosure are only used for the convenience of description and are not used to limit the scope of the embodiments of the present disclosure, but also indicate the order of precedence.

At least one in the present disclosure may also be described as one or more, and a plurality may be two, three, four or more, which is not limited in the present disclosure. In the embodiments of the present disclosure, for a technical feature, the technical features in the technical feature are distinguished by "first", "second", "third", "A", "B", "C" and "D", etc., and there is no order of precedence or size between the technical features described by the "first", "second", "third", "A", "B", "C" and "D".

The corresponding relationships shown in the tables in the present disclosure can be configured or predefined. The values of the information in each table are only examples and can be configured as other values, which are not limited by the present disclosure. When configuring the corresponding relationship between the information and each parameter, it is not necessarily required to configure all the corresponding relationships illustrated in each table. For example, in the table in the present disclosure, the corresponding relationships shown in some rows may not be configured. For another example, appropriate deformation adjustments can be made based on the above table, such as splitting, merging, etc. The names of the parameters shown in the titles of the above tables can also use other names that can be understood by the communication device, and the values or representations of the parameters can also be other values or representations that can be understood by the communication device. When implementing the above tables, other data structures can also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables or hash tables.

The predefined in the present disclosure may be understood as defined, predefined, stored, pre-stored, pre-negotiated, pre-configured, solidified, or pre-burned.

Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this disclosure.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

A method for determining a switching delay, characterized in that the method is performed by a network side device, comprising:

In response to determining that the transmission configuration indication state TCI state needs to be switched to a first target TCI state and a second target TCI state, a switching delay is determined based on the first target TCI state and the second target TCI state.
The method according to claim 1, characterized in that the method further comprises:

Send switching configuration information to a terminal device, wherein the switching configuration information is used to instruct the terminal device to use the first target TCI state and the second target TCI state for transmission.
The method according to claim 1 or 2, characterized in that the method further comprises:

After the switching delay, scheduling information is sent to the terminal device, wherein the scheduling information is used to schedule the terminal device to perform uplink transmission and/or downlink transmission.
The method according to any one of claims 1 to 3, characterized in that determining the switching delay according to the first target TCI state and the second target TCI state comprises:

Determining the types of the first target TCI state and the second target TCI state;

The switching delay is determined according to the types of the first target TCI state and the second target TCI state.
The method of claim 4, wherein determining the types of the first target TCI state and the second target TCI state comprises:

In response to receiving a measurement result of a reference signal corresponding to the first target TCI state reported by the terminal device within a specific time before sending the switching configuration information to the terminal device, determining that the type of the first target TCI state is a first type;

In response to not receiving a measurement result of a reference signal corresponding to the first target TCI state reported by the terminal device within a specific time before sending the switching configuration information to the terminal device, determining that the type of the first target TCI state is a second type;

In response to receiving a measurement result of a reference signal corresponding to the second target TCI state reported by the terminal device within a specific time before sending the switching configuration information to the terminal device, determining that the type of the second target TCI state is a first type;

In response to not receiving the measurement result of the reference signal corresponding to the second target TCI state reported by the terminal device within a specific time before sending the switching configuration information to the terminal device, it is determined that the type of the second target TCI state is the second type.
The method according to claim 5, characterized in that the determining the switching delay according to the types of the first target TCI state and the second target TCI state comprises at least one of the following:

In response to the first target TCI state and the second target TCI state being both of the first type, determining the switching delay according to a first calculation method;

In response to one of the first target TCI state and the second target TCI state being of the first type and the other being of the second type, determining the switching delay according to a second calculation method;

In response to the first target TCI state and the second target TCI state being both of the second type, determining the switching delay according to a third calculation method;

In response to the first target TCI state and the second target TCI state being both of the second type, and determining that the terminal device does not support simultaneous measurement and reporting of multiple reference signals, determining the switching delay according to a fourth calculation method;

In response to the types of the first target TCI state and the second target TCI state being both the second type, and determining that the terminal device supports simultaneous measurement and reporting of multiple reference signals, the switching delay is determined according to a fifth calculation method.
The method according to claim 6, characterized in that the first calculation method is:

The switching delay Ts= THARQ +3Ti+ TOk *(Tfirst -SSB + TSSB-proc )/time slot length;

Wherein, T HARQ is the time interval between downlink signal transmission and completion of measurement report reception, Ti is the number of time slots in each frame under the subcarrier spacing corresponding to the downlink signal transmission, T first-SSB is the time difference from the terminal device demodulating the media access control element MAC CE to the first processable synchronization signal block SSB, T SSB-proc = 2ms;

If the first target TCI state and the second target TCI state are both in the activated TCI state list, the TO k is 0;

If at least one of the first target TCI state and the second target TCI state is not in the activated TCI state list, the TO k is 1.
The method according to claim 6, characterized in that the second calculation method is: the switching delay Ts = max{T1, T2}; wherein, the one of the first target TCI state and the second target TCI state of the first type uses T1 to calculate the switching delay, and the one of the first target TCI state and the second target TCI state of the second type uses T2 to calculate the switching delay;

T1 = THARQ + 3Ti + TL1-RSRP + TOuk * (Tfirst -SSB + TSSB-proc ) / time slot length;

T2 = THARQ + 3Ti + TOk * (Tfirst -SSB + TSSB-proc ) / time slot length;

Wherein, T HARQ is the time interval between downlink signal transmission and completion of measurement report reception, Ti is the number of time slots in each frame under the subcarrier spacing corresponding to the downlink signal transmission, T L1-RSRP is the time for the terminal device to perform reference signal measurement, T first-SSB is the time difference from the demodulation of MAC CE by the terminal device to the first processable SSB, and T SSB-proc = 2ms;

If one of the first target TCI state and the second target TCI state that is of the first type is in the activated TCI state list, the TO k is 0;

If one of the first target TCI state and the second target TCI state of the first type is not in the activated TCI state list, the TO k is 1;

If the reference signal for which the terminal device performs reference signal measurement is a channel state information reference signal CSI-RS, the TO uk is 1;

If the reference signal used by the terminal device to perform reference signal measurement is SSB, the TO uk is 0.
The method according to claim 6, wherein the third calculation method and the fourth calculation method are:

The switching delay Ts=T HARQ +3Ti+T L1-RSRP1 +T L1-RSRP2 +(TO uk1 +TO uk2 )*(T first-SSB +T SSB-proc )/time slot length;

Wherein, T HARQ is the time interval between downlink signal transmission and completion of measurement report reception, Ti is the number of time slots in each frame under the subcarrier spacing corresponding to the downlink signal transmission, T L1-RSRP1 is the time for the terminal device to perform reference signal measurement on the transceiver point TRP1, T L1-RSRP2 is the time for the terminal device to perform reference signal measurement on TRP2, T first-SSB is the time difference from the terminal device demodulating the media access control element MAC CE to the first processable synchronization signal block SSB, T SSB-proc = 2ms;

Wherein, if the reference signal for the terminal device to perform reference signal measurement on TRP1 is a channel state information reference signal CSI-RS, the TO uk1 is 1;

If the reference signal for the terminal device to perform reference signal measurement on TRP1 is SSB, the TO uk1 is 0;

If the reference signal for the terminal device to perform reference signal measurement on TRP2 is a channel state information reference signal CSI-RS, the TO uk21 is 1;

If the reference signal used by the terminal device to perform reference signal measurement on TRP2 is SSB, TO uk2 is 0.
The method according to claim 6, characterized in that the fifth calculation method is:

The switching delay Ts=T HARQ +3Ti+max{T L1-RSRP1 +TO uk1 *(T first-SSB +T SSB-proc ), T L1-RSRP2 +TO uk2 *(T first-SSB +T SSB-proc )}/time slot length;

Wherein, T HARQ is the time interval between downlink signal transmission and completion of measurement report reception, Ti is the number of time slots in each frame under the subcarrier spacing corresponding to the downlink signal transmission, T L1-RSRP1 is the time when the terminal device performs reference signal measurement on TRP1, T L1-RSRP2 is the time when the terminal device performs reference signal measurement on TRP2, T first-SSB is the time difference from the demodulation of MAC CE by the terminal device to the first processable SSB, T SSB-proc = 2ms;

Wherein, if the reference signal for the terminal device to perform reference signal measurement on TRP1 is a channel state information reference signal CSI-RS, the TO uk1 is 1;

If the reference signal for the terminal device to perform reference signal measurement on TRP1 is SSB, the TO uk1 is 0;

If the reference signal for which the terminal device performs reference signal measurement on TRP2 is CSI-RS, TO uk2 is 1;

If the reference signal used by the terminal device to perform reference signal measurement on TRP2 is SSB, TO uk2 is 0.
The method according to any one of claims 6 to 10, characterized in that the method further comprises:

Receive capability information reported by the terminal device, wherein the capability information is used to indicate whether the terminal device supports simultaneous measurement and reporting of multiple reference signals.
The method as claimed in claim 11 is characterized in that the capability information is a bit, and when the bit is a first value, it indicates that the terminal device supports simultaneous measurement and reporting of multiple reference signals; when the bit is a second value, it indicates that the terminal device does not support simultaneous measurement and reporting of multiple reference signals.
A method for determining a switching delay, characterized in that the method is performed by a terminal device and includes:

Receiving switching configuration information sent by a network side device, wherein the switching configuration information is used to instruct the terminal device to use the first target TCI state and the second target TCI state for transmission;

Receive scheduling information sent by the network side device after the switching delay, wherein the scheduling information is used to schedule the terminal device to perform uplink transmission and/or downlink transmission, and the switching delay is determined by the network side device according to the first target TCI state and the second target TCI state.
The method according to claim 13, characterized in that the method further comprises:

Report capability information to the network side device, wherein the capability information is used to indicate whether the terminal device supports simultaneous measurement and reporting of multiple reference signals.
The method as claimed in claim 14 is characterized in that the capability information is a bit, and when the bit is a first value, it indicates that the terminal device supports simultaneous measurement and reporting of multiple reference signals; when the bit is a second value, it indicates that the terminal device does not support simultaneous measurement and reporting of multiple reference signals.
A communication device, characterized in that the device comprises:

The processing module is configured to determine the switching delay according to the first target TCI state and the second target TCI state in response to determining that the transmission configuration indication state TCI state needs to be switched to a first target TCI state and a second target TCI state.
A communication device, characterized in that the device comprises:

A transceiver module is configured to receive switching configuration information sent by a network side device, wherein the switching configuration information is used to instruct the terminal device to use the first target TCI state and the second target TCI state for transmission;

The transceiver module is also configured to receive scheduling information sent by the network side device after the switching delay, wherein the scheduling information is used to schedule the terminal device to perform uplink transmission and/or downlink transmission, and the switching delay is determined by the network side device based on the first target TCI state and the second target TCI state.
A communication device, characterized in that the device comprises a processor and a memory, the memory stores a computer program, the processor executes the computer program stored in the memory so that the device performs the method as described in any one of claims 1 to 12, or the processor executes the computer program stored in the memory so that the device performs the method as described in any one of claims 13 to 15.
A communication device, characterized in that it comprises: a processor and an interface circuit;

The interface circuit is used to receive code instructions and transmit them to the processor;

The processor is used to run the code instructions to execute the method according to any one of claims 1 to 12, or is used to run the code instructions to execute the method according to any one of claims 13 to 15.
A computer-readable storage medium for storing instructions, which, when executed, enables the method according to any one of claims 1 to 12 to be implemented, or, when executed, enables the method according to any one of claims 13 to 15 to be implemented.