Method and apparatus for determining handover delay

Abstract

The method and device for determining switching delay are disclosed by the embodiments of the present disclosure, which can be applied to the field of communication technology. The method executed by a network side device comprises: 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 a switching delay according to the first target TCI state and the second target TCI state. Thus, the switching delay of switching the TCI state to two TCI states can be determined.

Description

Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to a method and apparatus for determining switching delay. Background Technology

[0002] In related technologies, the switching of the transmission configuration indicator (TCI) state only considers the switching of a single TCI state and calculates the switching delay of a single TCI state. It does not consider the case of switching from one TCI state to two TCI states. Therefore, how to calculate the switching delay when switching to two TCI states is an urgent problem to be solved. Summary of the Invention

[0003] This disclosure provides a method and apparatus for determining switching latency, which can determine the switching latency when switching from one TCI state to two TCI states.

[0004] In a first aspect, embodiments of this disclosure provide a method for determining handover latency, the method being executed by a network-side device, the method comprising: 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 a handover latency based on the first target TCI state and the second target TCI state.

[0005] In this technical solution, the network-side device, in response to determining that the Transmission Configuration Indication state (TCI state) needs to switch to a first target TCI state and a second target TCI state, determines the handover delay based on the first target TCI state and the second target TCI state. Thus, the handover delay for switching from one TCI state to one of the two TCI states can be determined.

[0006] Secondly, embodiments of this disclosure provide another method for determining handover latency, which is executed by a terminal device. The method includes: receiving handover configuration information sent by a network-side device, wherein the handover configuration information is used to instruct the terminal device to use a first target TCI state and a second target TCI state for transmission; and receiving scheduling information sent by the network-side device after the handover latency, wherein the scheduling information is used to schedule the terminal device to perform uplink transmission and / or downlink transmission, and the handover latency is determined by the network-side device based on the first target TCI state and the second target TCI state.

[0007] Thirdly, embodiments of this disclosure provide a communication device that implements some or all of the functions of the network-side device described in the first aspect above. For example, the communication device may have the functions of some or all of the embodiments in this disclosure, or it may have the functions of any one embodiment in this disclosure implemented individually. 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.

[0008] In one implementation, the communication device may include a transceiver module and a processing module, the processing module being configured to support the communication device in performing the corresponding functions described in the above method. The transceiver module supports communication between the communication device and other devices. The communication device may also include a storage module, coupled to the transceiver module and the processing module, which stores necessary computer programs and data for the communication device.

[0009] In one implementation, the communication device includes: a processing module configured to determine a switching delay based on a determination that a Transmission Configuration Indication State (TCI) state needs to switch to a first target TCI state and a second target TCI state.

[0010] Fourthly, embodiments of this disclosure provide another communication device that has some or all of the functions of the terminal device described in the method example of the second aspect above. For example, the communication device may have the functions of some or all of the embodiments in this disclosure, or it may have the functions of any one embodiment in this disclosure implemented individually. 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.

[0011] In one implementation, the communication device may include a transceiver module and a processing module, the processing module being configured to support the communication device in performing the corresponding functions described 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 the necessary computer programs and data of the communication device.

[0012] In one implementation, the communication device includes: a transceiver module configured to receive handover configuration information sent by a network-side device, wherein the handover configuration information is used to instruct the terminal device to perform transmission using a first target TCI state and a second target TCI state; the transceiver module is further configured to receive scheduling information sent by the network-side device after a handover delay, wherein the scheduling information is used to schedule the terminal device to perform uplink transmission and / or downlink transmission, and the handover delay is determined by the network-side device based on the first target TCI state and the second target TCI state.

[0013] Fifthly, embodiments of this disclosure provide a communication device including a processor that, when the processor invokes a computer program in memory, executes the method described in the first aspect.

[0014] In a sixth aspect, embodiments of this disclosure provide a communication device including a processor that, when the processor invokes a computer program in memory, executes the method described in the second aspect above.

[0015] In a seventh aspect, embodiments of this disclosure provide a communication device including a processor and a memory, the memory storing a computer program; the processor executes the computer program stored in the memory to cause the communication device to perform the method described in the first aspect above.

[0016] Eighthly, embodiments of this disclosure provide a communication device including a processor and a memory storing a computer program; the processor executes the computer program stored in the memory to cause the communication device to perform the method described in the second aspect above.

[0017] Ninthly, embodiments of this disclosure provide a communication device including a processor and an interface circuit. The interface circuit is configured to receive code instructions and transmit them to the processor, which is configured to execute the code instructions to cause the device to perform the method described in the first aspect above.

[0018] In a tenth aspect, embodiments of this disclosure provide a communication device including a processor and an interface circuit. The interface circuit is configured to receive code instructions and transmit them to the processor, which is configured to execute the code instructions to cause the device to perform the method described in the second aspect above.

[0019] Eleventhly, embodiments of this disclosure provide a system for determining switching delay, the system including the communication device described in the third aspect and the communication device described in the fourth aspect, or the system including the communication device described in the fifth aspect and the communication device described in the sixth aspect, or the system including the communication device described in the seventh aspect and the communication device described in the eighth aspect, or the system including the communication device described in the ninth aspect and the communication device described in the tenth aspect.

[0020] In a twelfth aspect, embodiments of the present invention provide a computer-readable storage medium for storing instructions for use by the network-side device, which, when executed, cause the network-side device to perform the method described in the first aspect.

[0021] In a thirteenth aspect, embodiments of the present invention provide a readable storage medium for storing instructions for use by the aforementioned terminal device, which, when executed, cause the terminal device to perform the method described in the second aspect.

[0022] In a fourteenth aspect, this disclosure also provides a computer program product including a computer program that, when run on a computer, causes the computer to perform the method described in the first aspect above.

[0023] In a fifteenth aspect, this disclosure also provides a computer program product including a computer program that, when run on a computer, causes the computer to perform the method described in the second aspect above.

[0024] In a sixteenth aspect, this disclosure provides a chip system including at least one processor and an interface for supporting network-side devices in implementing the functions involved in the first aspect, such as determining or processing at least one of the data and information involved in the above methods. In one possible design, the chip system further includes a memory for storing computer programs and data necessary for the network-side device. The chip system may be composed of chips or may include chips and other discrete devices.

[0025] In a seventeenth aspect, this disclosure provides a chip system including at least one processor and an interface for supporting a terminal device in implementing the functions involved in the second aspect, such as determining or processing at least one of the data and information involved in the above methods. In one possible design, the chip system further includes a memory for storing computer programs and data necessary for the terminal device. The chip system may be composed of chips or may include chips and other discrete devices.

[0026] In an eighteenth aspect, this disclosure provides a computer program that, when run on a computer, causes the computer to perform the method described in the first aspect above.

[0027] In a nineteenth aspect, this disclosure provides a computer program that, when run on a computer, causes the computer to perform the method described in the second aspect above. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments or background art of this disclosure, the accompanying drawings used in the embodiments or background art of this disclosure will be described below.

[0029] Figure 1 This is an architecture diagram of a communication system provided in an embodiment of this disclosure;

[0030] Figure 2 This is a schematic diagram of a TCI state activation / deactivation MAC CE format provided in an embodiment of this disclosure;

[0031] Figure 3 This is a schematic diagram of a format for enhancing TCI state activation / deactivation of MAC CE provided in an embodiment of this disclosure;

[0032] Figure 4 This is a flowchart of a method for determining switching delay provided in an embodiment of this disclosure;

[0033] Figure 5 This is a flowchart of a measurement configuration method provided in an embodiment of this disclosure;

[0034] Figure 6 This is a flowchart of another measurement configuration method provided in this embodiment of the disclosure;

[0035] Figure 7 This is a flowchart of another method for determining switching delay provided in an embodiment of this disclosure;

[0036] Figure 8 This is a flowchart of another method for determining switching delay provided in this embodiment of the disclosure;

[0037] Figure 9 This is a flowchart of another method for determining switching delay provided in this embodiment of the disclosure;

[0038] Figure 10 This is a flowchart of another method for determining switching delay provided in this embodiment of the disclosure;

[0039] Figure 11 This is a flowchart of another method for determining switching delay provided in this embodiment of the disclosure;

[0040] Figure 12 This is a flowchart of yet another measurement configuration method provided in this disclosure embodiment;

[0041] Figure 13This is a structural diagram of a communication device provided in an embodiment of this disclosure;

[0042] Figure 14 This is a structural diagram of another communication device provided in an embodiment of this disclosure;

[0043] Figure 15 This is a schematic diagram of the structure of a chip provided in an embodiment of this disclosure. Detailed Implementation

[0044] To better understand the method and apparatus for determining switching delay disclosed in this disclosure, the communication system to which this disclosure applies will be described first.

[0045] Please see Figure 1 , Figure 1 This is a schematic diagram of the architecture of a communication system provided in an embodiment of the present disclosure. The communication system may include, but is not limited to, a network-side device and a terminal device. Figure 1 The number and form of devices shown are for illustrative purposes only and do not constitute a limitation on the embodiments of this disclosure. In actual applications, there may be two or more network-side devices and two or more terminal devices. Figure 1 The communication system 10 shown is exemplified by including a network-side device 101 and a terminal device 102.

[0046] It should be noted that the technical solutions of this disclosure can be applied to various communication systems. For example, Long Term Evolution (LTE) systems, 5th Generation (5G) mobile communication systems, 5G New Radio (NR) systems, or other future new mobile communication systems.

[0047] The network-side device 101 in this embodiment is a network-side entity used for transmitting or receiving signals. For example, the network-side device 101 can be an evolved NodeB (eNB), a transmission reception 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. This disclosure does not limit the specific technology or device form used in the base station. The base station provided in this disclosure can be composed of a central unit (CU) and a distributed unit (DU). The CU can also be called a control unit. Using a CU-DU structure, the base station, for example, can have its protocol layer separated. Some protocol layer functions are centrally controlled by the CU, while the remaining or all protocol layer functions are distributed in the DU, which is centrally controlled by the CU.

[0048] The terminal device 102 in this disclosure is a user-side entity used to receive or transmit signals, such as a mobile phone. The terminal device can also be referred to as a terminal, user equipment (UE), mobile station (MS), mobile terminal (MT), etc. The terminal device can be a car with communication capabilities, a smart car, a mobile phone, a wearable device, a tablet computer, a computer with wireless transceiver capabilities, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, a wireless terminal device in a smart home, etc. This disclosure does not limit the specific technology or device form used in the terminal device.

[0049] It is understood that the communication system described in the embodiments of this disclosure is for the purpose of more clearly illustrating the technical solutions of the embodiments of this disclosure, and does not constitute a limitation on the technical solutions provided in the embodiments of this disclosure. As those skilled in the art will know, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of this disclosure are also applicable to similar technical problems.

[0050] In addition, the following points are provided to facilitate understanding of the embodiments disclosed herein.

[0051] First, in this embodiment of the disclosure, "for indicating" can include both direct and indirect indication. When describing information as indicating A, it can include whether the information directly indicates A or indirectly indicates A, but does not necessarily mean that the information carries A.

[0052] 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 its index. It can also be indirectly indicated by indicating other information, where there is a relationship between the other information and the information to be indicated. It can also indicate only a part of the information to be indicated, while the other parts are known or pre-agreed upon. For example, the indication of specific information can be achieved by using a pre-agreed (e.g., protocol-defined) arrangement of various pieces of information, thereby reducing the indication overhead to some extent.

[0053] The information to be instructed can be sent as a whole or divided into multiple sub-information messages, and the sending period and / or timing of these sub-information messages can be the same or different. This disclosure does not limit the specific sending method. The sending period and / or timing of these sub-information messages can be predefined, for example, according to a protocol.

[0054] Second, in this disclosure, the terms "first," "second," and various numerical designations (e.g., "#1," "#2") are merely for descriptive convenience and are not intended to limit the scope of the embodiments of this disclosure. For example, they are used to distinguish different information.

[0055] Third, the “protocol” involved in the embodiments of this disclosure may refer to standard protocols in the field of communication, such as LTE protocol, NR protocol, WLAN protocol and related protocols in other communication systems, and this disclosure does not limit it.

[0056] Fourth, this disclosure provides multiple implementation methods to clearly illustrate the technical solutions of this disclosure. Of course, those skilled in the art will understand that the multiple embodiments provided in this disclosure can be executed individually, or in combination with the methods of other embodiments in this disclosure, or individually or in combination with some methods in other related technologies; this disclosure does not limit these aspects.

[0057] In the evolution of fifth generation (5G), due to the use of beamforming technology in the FR2 millimeter wave band, the downlink beams of network-side equipment can be formed into downlink transmission beams in different directions through the beamforming capabilities of the base station. The TCI state describes the state of the downlink transmission beams of the network-side equipment, including the TCI State identifier (ID) and the quasi-co-location (QCL) relationship. The terminal equipment measures the reference signal of the QCL-D relationship of the TCI state to obtain the corresponding layer 1 reference signal received power (L1-RSRP), and reports it to the network-side equipment.

[0058] Network-side equipment selects the downlink beam with high L1-RSRP received signal power for downlink signal transmission. Through radio resource control (RRC), medium access control-control element (MAC-CE), or downlink control information (DCI), the network-side equipment sends a command to switch TCI states to the terminal equipment. After receiving the command, the terminal equipment receives downlink signals from the corresponding TCI state's downlink beam, thereby achieving beam management.

[0059] When network-side equipment needs to perform downlink beam switching, the higher layer (MAC layer) will issue a TCI state activation / deactivation command. After receiving the command from the higher layer, the terminal equipment will need a specific switching time to complete the corresponding TCI state switching. Only after this switching time is completed can the terminal equipment use the new TCI state to receive the physical downlink control channel (PDCCH) and physical downlink shared channel (PDSCH).

[0060] In 3GPP Release 16 (Rel-16), the concept of Multi-transmit-receive point (mTRP) was introduced, which is multi-TRP transmission. Two control methods were introduced: single-downlink control signaling (S-DCI) and multiple-downlink control signaling (M-DCI). Currently, only two-TRP multi-TRP transmissions are supported. S-DCI uses a single DCI to control the update and control of two TCI states, thus introducing enhanced TCI state activation / deactivation instructions. Traditional TCI state activation / deactivation can only activate and deactivate a single TCI state (the corresponding MAC CE signaling configuration is as follows). Figure 2 (as shown), Figure 2 The document provides many Ti values, where i identifies the TCI state ID in the RRC signaling. If the bit position of Ti is 1, it indicates that the TCI state ID is activated.

[0061] Enhanced TCI state activation / deactivation allows for the simultaneous activation and deactivation of a group of TCI states (the corresponding MAC CE signaling configuration is as follows). Figure 3(As shown). The TCI state ID is followed by two subscripts, i and j. i identifies the 3-bit codepoint of the TCI field in the DCI corresponding to this TCI state ID; for example, i = 0 corresponds to codepoint 000, i = 1 corresponds to codepoint 001, and so on. The subscript j indicates that this TCI state ID is the j-th of at least one TCI state ID corresponding to the i-th codepoint. For example, j = 1 indicates the first one, j = 2 indicates the second one. If the subscript is 0 or 1, it indicates the first TCI state ID corresponding to codepoint 000.

[0062] Each TCI state can be one or two TCI states, depending on the configuration of the network-side equipment. The terminal equipment can receive PDSCH from TRP1 and TRP2 simultaneously.

[0063] In traditional TCI state handover, only a single TCI state handover command is considered. The current requirements for the handover latency of a single TCI state are defined by Formulas 1 and 2 respectively, based on the specific handover situation.

[0064] In the case where the target TCI state for handover is unknown to the terminal device, the handover latency (MAC CE activation time) is calculated using Formula 1. The target TCI state being unknown to the terminal device can be the measurement result of the network-side device not receiving the reference signal corresponding to the target TCI state reported by the terminal device within a specific time period before sending handover configuration information to the terminal device. This specific time period could be, for example, 1280ms.

[0065] Formula 1: Switching delay Ts = T HARQ +3Ti+TO uk *(T first-SSB +T SSB-proc ) / timeslot length;

[0066] Among them, T HARQ T is the time interval between downlink signal transmission and measurement reporting completion, where Ti is the number of time slots per frame under the subcarrier interval corresponding to downlink signal transmission, and T is the time interval between downlink signal transmission and measurement reporting completion. first-SSB T is the time difference between the demodulation of the Media Access Control (MAC) element CE by the terminal device and the first processable synchronization signal block (SSB). SSB-proc =2ms;

[0067] Wherein, if the reference signal used by the terminal device to perform reference signal measurement is the Channel State Information Reference Signal (CSI-RS), TOuk =1;

[0068] If the reference signal for the terminal device to perform reference signal measurement is SSB, TO uk It is 0.

[0069] Where the target TCI state for handover is a known TCI state of the terminal device, the handover latency (MAC CE activation time) is calculated using the following formula 2. The target TCI state for handover being a known TCI state of the terminal device can be the measurement result of the reference signal corresponding to the target TCI state reported by the terminal device within a specific time period before the network-side device sends handover configuration information to the terminal device. For example, this specific time period could be 1280ms.

[0070] Formula 2: Switching delay Ts = T HARQ +3Ti+TO k *(T first-SSB +T SSB-proc ) / timeslot length;

[0071] Among them, T HARQ T is the time interval between downlink signal transmission and measurement reporting completion, where Ti is the number of time slots per frame under the subcarrier interval corresponding to downlink signal transmission, and T is the time interval between downlink signal transmission and measurement reporting completion. first-SSB T is the time difference between the demodulation of the Media Access Control (MAC) element CE by the terminal device and the first processable synchronization signal block (SSB). SSB-proc =2ms;

[0072] Wherein, if the target TCI state is in the list of activated TCI states, TO k The value is 0; if the target TCI state is not in the list of activated TCI states, TO... k The value is 1.

[0073] However, the handover update based on the new S-DCI-introduced dual TCI state lacks relevant requirements regarding handover latency. Therefore, network-side devices cannot determine the handover latency of terminal devices and cannot perform corresponding scheduling.

[0074] Based on this, this embodiment of the disclosure provides a method for determining handover latency. When the network-side device determines that the Transmission Configuration Indication state (TCI state) needs to be switched to a first target TCI state and a second target TCI state, it determines the handover latency based on the first target TCI state and the second target TCI state. Thus, the handover latency for switching from one TCI state to one of the two TCI states can be determined.

[0075] The following description, in conjunction with the accompanying drawings, details a method and apparatus for determining switching delay provided in this disclosure.

[0076] Please see Figure 4 , Figure 4 This is a flowchart of a method for determining switching delay provided in an embodiment of this disclosure.

[0077] like Figure 4 As shown, this method is executed by a network-side device, and the method may include, but is not limited to, the following steps:

[0078] S41: 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 switching delay based on the first target TCI state and the second target TCI state.

[0079] In this embodiment of the disclosure, the network-side device can determine the current TCI transmission state and the target TCI transmission state. The switching scenario can be a switch from a single TCI state to two TCI states, or a switch from two TCI states to two TCI states, and so on.

[0080] Optionally, the network-side device can first determine whether a TCIstate switch is required.

[0081] Understandably, network-side devices can determine whether the TCI state needs to switch 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 requests, conditions agreed upon in the protocol, etc.

[0082] Understandably, when switching from a single TCI state to two TCI states, the network-side device employs enhanced TCI state activation / deactivation, using MAC CE of the enhanced TCI state activation / deactivation type, such as... Figure 3 As shown.

[0083] Correspondingly, the MAC CE of a single TCI state before the handover activates N TCI states out of the 128 TCI states configured in the RRC, where N can be up to 8. For the two target TCI states to be handed over, depending on whether there are 1 or 2 of the two target TCI states and their corresponding relationship with the maximum of 8 TCI states already activated before the handover, the network-side equipment needs to configure different handover delays to ensure that the new TCI state can be used to schedule terminal devices after the handover is completed.

[0084] Based on this, network-side devices can determine the handover delay according to the first target TCI state and the second target TCI state.

[0085] It is understandable that, as described above, in traditional TCI state switching, when only a single TCI state switching instruction is considered, the calculation formulas 1 and 2 for the single TCI state switching latency 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.

[0086] The target TCI state for handover is a TCI state known to the terminal device. It can be the measurement result of the reference signal corresponding to the target TCI state reported by the terminal device within a specific time period before the network-side device sends the handover configuration information to the terminal device. The specific time period can be, for example, 1280ms.

[0087] Conversely, the target TCI state for handover is an unknown TCI state for the terminal device. It can be the measurement result of the reference signal corresponding to the target TCI state reported by the terminal device within a specific time before the network-side device sends the handover configuration information to the terminal device.

[0088] In this embodiment of the disclosure, the network-side device determines the handover delay based on the first target TCI state and the second target TCI state, or it can determine it based on whether the first target TCI state and the second target TCI state are TCI states known to the terminal device.

[0089] In some embodiments, the network-side device determines the handover delay based on a first target TCI state and a second target TCI state, including: determining the types of the first target TCI state and the second target TCI state; and determining the handover delay based on the types of the first target TCI state and the second target TCI state.

[0090] In this embodiment of the disclosure, the network-side device can determine the types of the first target TCI state and the second target TCI state, for example, determining whether the first target TCI state and the second target TCI state are TCI states known to the terminal device.

[0091] 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 handover delay according to the types of the first target TCI state and the second target TCI state.

[0092] In some embodiments, the network-side device determines the types of the first target TCI state and the second target TCI state, including:

[0093] In response to receiving 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, the type of the first target TCI state is determined to be the first type;

[0094] In response to the fact that no measurement result of the reference signal corresponding to the first target TCI state reported by the terminal device is received within a specific time before the handover configuration information is sent to the terminal device, the type of the first target TCI state is determined to be the second type;

[0095] In response to 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, the type of the second target TCI state is determined to be the first type;

[0096] In response to the fact that no measurement result of the reference signal corresponding to the second target TCI state reported by the terminal device is received within a certain period of time before the handover configuration information is sent to the terminal device, the type of the second target TCI state is determined to be the second type.

[0097] In this embodiment of the present disclosure, 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 a first type. The specific time can be 1280ms, and the first type can be a TCI state known to the terminal device.

[0098] In this embodiment of the disclosure, if 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, it determines that the type of the first target TCI state is the second type. The specific time can be 1280ms, and the first type can be a TCI state unknown to the terminal device.

[0099] In this embodiment of the disclosure, 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. The specific time can be 1280ms, and the first type can be the TCI state known to the terminal device.

[0100] In this embodiment of the disclosure, if 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 handover configuration information to the terminal device, it determines that the type of the second target TCI state is the second type. The specific time can be 1280ms, and the second type can be a TCI state unknown to the terminal device.

[0101] It is understandable that, given the types of the first target TCI state and the second target TCI state, the network-side device can determine the handover delay based on these types.

[0102] In some embodiments, the network-side device determines the handover delay based on the types of the first target TCI state and the second target TCI state, including at least one of the following:

[0103] Since both the first target TCI state and the second target TCI state are of the first type, the handover delay is determined according to the first calculation method.

[0104] In response to the first target TCI state and the second target TCI state being of type 1 and type 2 respectively, the handover delay is determined according to the second calculation method;

[0105] Since both the first target TCI state and the second target TCI state are of type 2, the handover delay is determined according to the third calculation method.

[0106] In response to the fact that both the first target TCI state and the second target TCI state are of type 2, and it is determined that the terminal device does not support simultaneous measurement and reporting of multiple reference signals, the handover delay is determined according to the fourth calculation method.

[0107] In response to the fact that both the first target TCI state and the second target TCI state are of type 2, and it is determined that the terminal device supports simultaneous measurement and reporting of multiple reference signals, the handover delay is determined according to the fifth calculation method.

[0108] In this embodiment of the present disclosure, the network-side device can determine the handover delay according to a first calculation method when both the first target TCI state and the second target TCI state are of the first type.

[0109] In some embodiments, the first calculation method is: switching delay Ts = T HARQ +3Ti+TO k *(T first-SSB +T SSB-proc ) / timeslot length;

[0110] Among them, T HARQ T is the time interval between downlink signal transmission and measurement reporting completion, where Ti is the number of time slots per frame under the subcarrier interval corresponding to downlink signal transmission, and T is the time interval between downlink signal transmission and measurement reporting completion. first-SSB T is the time difference between the demodulation of the Media Access Control (MAC) element CE by the terminal device and the first processable synchronization signal block (SSB). SSB-proc =2ms;

[0111] Where both the first target TCI state and the second target TCI state are in the list of activated TCI states, TO k =0;

[0112] If at least one of the first target TCI state and the second target TCI state is not in the list of activated TCI states, TO k The value is 1.

[0113] In this embodiment of the disclosure, the network-side device can determine the handover delay according to a 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.

[0114] In some embodiments, the second calculation method is: switching delay Ts = max{T1, T2}; wherein, the switching delay of the first target TCI state and the second target TCI state of type 1 is calculated using T1, and the switching delay of the first target TCI state and the second target TCI state of type 2 is calculated using T2;

[0115] T1 = T HARQ +3Ti+T L1-RSRP +TO uk *(T first-SSB +T SSB-proc ) / timeslot length;

[0116] T2 = T HARQ +3Ti+TO k *(T first-SSB +T SSB-proc ) / timeslot length;

[0117] Among them, T HARQ T is the time interval between downlink signal transmission and measurement reporting completion, where Ti is the number of time slots per frame under the subcarrier interval corresponding to downlink signal transmission, and T is the time interval between downlink signal transmission and measurement reporting completion. L1-RSRP T is the time T is for the terminal device to perform reference signal measurements. first-SSB T is the time difference between the demodulation of the MAC CE by the terminal device and the first processable SSB. SSB-proc =2ms;

[0118] Wherein, if one of the first target TCI states and the second target TCI state of type first is in the list of activated TCI states, TO k =0;

[0119] If one of the first target TCI states and the second target TCI state of type 1 is not in the list of activated TCI states, TO k =1;

[0120] If the reference signal used by the terminal device to perform reference signal measurement is the Channel State Information Reference Signal (CSI-RS), TO uk =1;

[0121] If the reference signal for the terminal device to perform reference signal measurement is SSB, TO uk It is 0.

[0122] In this embodiment of the present disclosure, the network-side device can determine the handover delay according to a third calculation method when both the first target TCI state and the second target TCI state are of the second type.

[0123] In some embodiments, the third calculation method is:

[0124] Switching delay Ts = T HARQ +3Ti+T L1-RSRP1 +T L1-RSRP2 +(TO uk1 +TO uk2 )*(T first-SSB +T SSB-proc ) / timeslot length;

[0125] Among them, T HARQ T is the time interval between downlink signal transmission and measurement reporting completion, where Ti is the number of time slots per frame under the subcarrier interval corresponding to downlink signal transmission, and T is the time interval between downlink signal transmission and measurement reporting completion. L1-RSRP1 T is the time when the terminal device performs reference signal measurement on the transceiver point TRP1. L1-RSRP2 T is the time when the terminal device performs reference signal measurement on TRP2. first-SSB T is the time difference between the demodulation of the Media Access Control (MAC) element CE by the terminal device and the first processable synchronization signal block (SSB). SSB-proc =2ms;

[0126] Wherein, if the reference signal used by the terminal device to perform reference signal measurement on TRP1 is the Channel State Information Reference Signal (CSI-RS), TO uk1 =1;

[0127] If the reference signal for the terminal device to perform reference signal measurement on TRP1 is SSB, TO uk1 =0;

[0128] If the reference signal used by the terminal device to perform reference signal measurement on TRP2 is the Channel State Information Reference Signal (CSI-RS), then TO uk21 =1;

[0129] If the reference signal for the terminal device to perform reference signal measurement on TRP2 is SSB, TO uk2 It is 0.

[0130] In this embodiment of the disclosure, the network-side device may determine the handover delay according to the fourth calculation method when both the first target TCI state and the second target TCI state are of the second type and it is determined that the terminal device does not support simultaneous measurement and reporting of multiple reference signals.

[0131] In some embodiments, the fourth calculation method is:

[0132] Switching delay Ts = T HARQ +3Ti+T L1-RSRP1 +TL1-RSRP2 +(TO uk1 +TO uk2 )*(T first-SSB +T SSB-proc ) / timeslot length;

[0133] Among them, T HARQ T is the time interval between downlink signal transmission and measurement reporting completion, where Ti is the number of time slots per frame under the subcarrier interval corresponding to downlink signal transmission, and T is the time interval between downlink signal transmission and measurement reporting completion. L1-RSRP1 T is the time when the terminal device performs reference signal measurement on the transceiver point TRP1. L1-RSRP2 T is the time when the terminal device performs reference signal measurement on TRP2. first-SSB T is the time difference between the demodulation of the Media Access Control (MAC) element CE by the terminal device and the first processable synchronization signal block (SSB). SSB-proc =2ms;

[0134] Wherein, if the reference signal used by the terminal device to perform reference signal measurement on TRP1 is the Channel State Information Reference Signal (CSI-RS), TO uk1 =1;

[0135] If the reference signal for the terminal device to perform reference signal measurement on TRP1 is SSB, TO uk1 =0;

[0136] If the reference signal used by the terminal device to perform reference signal measurement on TRP2 is the Channel State Information Reference Signal (CSI-RS), then TO uk21 =1;

[0137] If the reference signal for the terminal device to perform reference signal measurement on TRP2 is SSB, TO uk2 It is 0.

[0138] In this embodiment of the disclosure, the network-side device can determine the handover delay according to the fifth calculation method when both the first target TCI state and the second target TCI state are of the second type and it is determined that the terminal device supports simultaneous measurement and reporting of multiple reference signals.

[0139] In some embodiments, the fifth calculation method is:

[0140] 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)} / timeslot length;

[0141] Among them, T HARQ T is the time interval between downlink signal transmission and measurement reporting completion, where Ti is the number of time slots per frame under the subcarrier interval corresponding to downlink signal transmission, and T is the time interval between downlink signal transmission and measurement reporting completion. L1-RSRP1 T is the time when the terminal device performs reference signal measurement on TRP1. L1-RSRP2 T is the time when the terminal device performs reference signal measurement on TRP2. first-SSB T is the time difference between the demodulation of the MAC CE by the terminal device and the first processable SSB. SSB-proc =2ms;

[0142] Wherein, if the reference signal used by the terminal device to perform reference signal measurement on TRP1 is the Channel State Information Reference Signal (CSI-RS), TO uk1 =1;

[0143] If the reference signal for the terminal device to perform reference signal measurement on TRP1 is SSB, TO uk1 =0;

[0144] If the reference signal used by the terminal device to perform reference signal measurement on TRP2 is CSI-RS, TO uk2 =1;

[0145] If the reference signal for the terminal device to perform reference signal measurement on TRP2 is SSB, TO uk2 It is 0.

[0146] It is understood that in this embodiment 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 by means of terminal device capability reporting.

[0147] In some embodiments, the network-side device receives 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.

[0148] In some embodiments, the capability information is a single bit. When the bit is of a first value, it indicates that the terminal device supports simultaneous measurement and reporting of multiple reference signals; when the bit is of a second value, it indicates that the terminal device does not support simultaneous measurement and reporting of multiple reference signals.

[0149] In this embodiment of the disclosure, the network-side device receives capability information reported by the terminal device. The capability information can be a single 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.

[0150] For example, when the bit is "1", it indicates that the terminal device supports simultaneous measurement and reporting of multiple reference signals; when the bit is "0", it indicates that the terminal device does not support simultaneous measurement and reporting of multiple reference signals.

[0151] For example, when the bit is "0", it indicates that the terminal device supports simultaneous measurement and reporting of multiple reference signals; when the bit is "1", it indicates that the terminal device does not support simultaneous measurement and reporting of multiple reference signals.

[0152] By implementing embodiments of this disclosure, the network-side device, in response to determining that the Transmission Configuration Indication state (TCI state) needs to switch to a first target TCI state and a second target TCI state, determines the handover delay based on the first target TCI state and the second target TCI state. Thus, the handover delay for switching from one TCI state to one of the two TCI states can be determined.

[0153] Please see Figure 5 , Figure 5 This is a flowchart of a measurement configuration method provided in an embodiment of this disclosure.

[0154] like Figure 5 As shown, this method is executed by a network-side device, and the method may include, but is not limited to, the following steps:

[0155] S51: 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 switching delay based on the first target TCI state and the second target TCI state.

[0156] S52: Send handover configuration information to the terminal device, wherein the handover configuration information is used to instruct the terminal device to use the first target TCI state and the second target TCI state for transmission.

[0157] In this embodiment of the disclosure, the network-side device sends handover configuration information to the terminal device to instruct the terminal device to transmit using a first target TCI state and a second target TCI state. The network-side device can send the handover configuration information to the terminal device by sending RRC, MAC CE, or DCI.

[0158] By implementing the embodiments of this disclosure, in response to determining that the Transmission Configuration Indication state (TCI state) needs to switch to a first target TCI state and a second target TCI state, the network-side device determines the handover delay based on the first target TCI state and the second target TCI state, and sends handover configuration information to the terminal device. The handover configuration information instructs the terminal device to use the first target TCI state and the second target TCI state for transmission. Thus, the handover delay for switching from one TCI state to the two TCI states can be determined, and the terminal device can be instructed to use the first target TCI state and the second target TCI state for transmission.

[0159] Please see Figure 6 , Figure 6 This is a flowchart of another measurement configuration method provided in an embodiment of this disclosure.

[0160] like Figure 6 As shown, this method is executed by a network-side device, and the method may include, but is not limited to, the following steps:

[0161] S61: 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 switching delay based on the first target TCI state and the second target TCI state.

[0162] S62: Send handover configuration information to the terminal device, wherein the handover configuration information is used to instruct the terminal device to use the first target TCI state and the second target TCI state for transmission.

[0163] The relevant descriptions of S61 and S62 can be found in the relevant descriptions in the above embodiments, and will not be repeated here.

[0164] S63: After the handover delay, send scheduling information to the terminal device, wherein the scheduling information is used to schedule the terminal device to perform uplink and / or downlink transmission.

[0165] In this embodiment of the disclosure, when the network-side device determines the handover delay, it can send scheduling information to the terminal device after the handover delay. The scheduling information is used to schedule the terminal device to perform uplink and / or downlink transmissions. This ensures that when the network-side device schedules the terminal device to perform uplink and / or downlink transmissions, the terminal device has already completed the TCI state handover, allowing the terminal device to transmit using both the first target TCI state and the second target TCI state.

[0166] By implementing the embodiments of this disclosure, in response to determining that the Transmission Configuration Indication (TCI) state needs to switch to a first target TCI state and a second target TCI state, the network-side device determines a switching delay based on the first and second target TCI states, and sends switching configuration information to the terminal device. This switching configuration information instructs the terminal device to use the first and second target TCI states for transmission. After the switching delay, scheduling information is sent to the terminal device, which is used to schedule the terminal device for uplink and / or downlink transmission. Therefore, the switching delay between the two TCI states can be determined, and it can be ensured that when the network-side device schedules the terminal device for uplink and / or downlink transmission, the terminal device has already completed the TCI state switch. Thus, the terminal device can use the first and second target TCI states for transmission, achieving accurate scheduling of the terminal device and ensuring communication quality.

[0167] Please see Figure 7 , Figure 7 This is a flowchart of another method for determining switching delay provided in an embodiment of this disclosure.

[0168] like Figure 7 As shown, this method is executed by a network-side device, and the method may include, but is not limited to, the following steps:

[0169] S71: 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 type of the first target TCI state and the second target TCI state.

[0170] In this embodiment of the present disclosure, 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 a first type. The specific time can be 1280ms, and the first type can be a TCI state known to the terminal device.

[0171] In this embodiment of the disclosure, if 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, it determines that the type of the first target TCI state is the second type. The specific time can be 1280ms, and the first type can be a TCI state unknown to the terminal device.

[0172] In this embodiment of the disclosure, 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. The specific time can be 1280ms, and the first type can be the TCI state known to the terminal device.

[0173] In this embodiment of the disclosure, if 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 handover configuration information to the terminal device, it determines that the type of the second target TCI state is the second type. The specific time can be 1280ms, and the second type can be a TCI state unknown to the terminal device.

[0174] S72: In response to the fact that both the first target TCI state and the second target TCI state are of the first type, determine the switching delay according to the first calculation method.

[0175] The first type and the second type can be referred to in the relevant descriptions in the above embodiments, and will not be repeated here.

[0176] In some embodiments, the first calculation method is: switching delay Ts = T HARQ +3Ti+TO k *(T first-SSB +T SSB-proc ) / timeslot length;

[0177] Among them, T HARQ T is the time interval between downlink signal transmission and measurement reporting completion, where Ti is the number of time slots per frame under the subcarrier interval corresponding to downlink signal transmission, and T is the time interval between downlink signal transmission and measurement reporting completion. first-SSB T is the time difference between the demodulation of the Media Access Control (MAC) element CE by the terminal device and the first processable synchronization signal block (SSB). SSB-proc =2ms;

[0178] Where both the first target TCI state and the second target TCI state are in the list of activated TCI states, TO k =0;

[0179] If at least one of the first target TCI state and the second target TCI state is not in the list of activated TCI states, TO k The value is 1.

[0180] It should be noted that in the embodiments of this disclosure, S61 and S63 can be implemented individually or in combination with any other step in the embodiments of this disclosure, such as in combination with S41 and S42 and / or S51 to S53 in the embodiments of this disclosure. The embodiments of this disclosure do not limit this.

[0181] By implementing embodiments of this disclosure, the network-side device, in response to determining that the Transmission Configuration Indication (TCI) state needs to switch to a first target TCI state and a second target TCI state, determines the types of the first target TCI state and the second target TCI state. If both the first target TCI state and the second target TCI state are of the first type, the device determines the switching delay according to a first calculation method. Thus, the switching delay for switching a TCI state to one of the two TCI states can be determined.

[0182] Please see Figure 8 , Figure 8 This is a flowchart of another method for determining switching delay provided in this embodiment of the disclosure.

[0183] like Figure 8 As shown, this method is executed by a network-side device, and the method may include, but is not limited to, the following steps:

[0184] S81: 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 type of the first target TCI state and the second target TCI state.

[0185] The relevant description of S81 can be found in the relevant description in the above embodiments, and will not be repeated here.

[0186] S82: In response to the fact that one of the first target TCI state and the second target TCI state is of type 1 and the other is of type 2, determine the switching delay according to the second calculation method.

[0187] The first type and the second type can be referred to in the relevant descriptions in the above embodiments, and will not be repeated here.

[0188] In some embodiments, the second calculation method is: switching delay Ts = max{T1, T2}; wherein, the switching delay of the first target TCI state and the second target TCI state of type 1 is calculated using T1, and the switching delay of the first target TCI state and the second target TCI state of type 2 is calculated using T2;

[0189] T1 = T HARQ +3Ti+T L1-RSRP +TO uk *(T first-SSB +T SSB-proc ) / timeslot length;

[0190] T2 = T HARQ +3Ti+TO k *(T first-SSB +T SSB-proc ) / timeslot length;

[0191] Among them, T HARQ T is the time interval between downlink signal transmission and measurement reporting completion, where Ti is the number of time slots per frame under the subcarrier interval corresponding to downlink signal transmission, and T is the time interval between downlink signal transmission and measurement reporting completion. L1-RSRP T is the time T is for the terminal device to perform reference signal measurements. first-SSB T is the time difference between the demodulation of the MAC CE by the terminal device and the first processable SSB. SSB-proc =2ms;

[0192] Wherein, if one of the first target TCI states and the second target TCI state of type first is in the list of activated TCI states, TO k =0;

[0193] If one of the first target TCI states and the second target TCI state of type 1 is not in the list of activated TCI states, TO k =1;

[0194] If the reference signal used by the terminal device to perform reference signal measurement is the Channel State Information Reference Signal (CSI-RS), TO uk =1;

[0195] If the reference signal for the terminal device to perform reference signal measurement is SSB, TO uk It is 0.

[0196] It should be noted that in the embodiments of this disclosure, S71 and S73 can be implemented individually or in combination with any other step in the embodiments of this disclosure, such as in combination with S41 and S42 and / or S51 to S53 in the embodiments of this disclosure. The embodiments of this disclosure do not limit this.

[0197] By implementing embodiments of this disclosure, the network-side device, in response to determining that a Transmission Configuration Indication (TCI) state needs to switch to a first target TCI state and a second target TCI state, determines the types of the first target TCI state and the second target TCI state. In response that one of the first target TCI state and the second target TCI state is of type one and the other is of type two, the device determines the switching delay according to a second calculation method. Thus, the switching delay for switching a TCI state to one of the two TCI states can be determined.

[0198] Please see Figure 9 , Figure 9 This is a flowchart of another method for determining switching delay provided in this embodiment of the disclosure.

[0199] like Figure 9 As shown, this method is executed by a network-side device, and the method may include, but is not limited to, the following steps:

[0200] S91: In response to the determination 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 type of the first target TCI state and the second target TCI state.

[0201] The relevant description of S91 can be found in the relevant description in the above embodiments, and will not be repeated here.

[0202] S92: In response to the fact that both the first target TCI state and the second target TCI state are of the second type, the handover delay is determined according to the third calculation method.

[0203] The first type and the second type can be referred to in the relevant descriptions in the above embodiments, and will not be repeated here.

[0204] In some embodiments, the third calculation method is:

[0205] Switching delay Ts = T HARQ +3Ti+T L1-RSRP1 +T L1-RSRP2 +(TO uk1 +TO uk2 )*(T first-SSB +T SSB-proc ) / timeslot length;

[0206] Among them, T HARQ T is the time interval between downlink signal transmission and measurement reporting completion, where Ti is the number of time slots per frame under the subcarrier interval corresponding to downlink signal transmission, and T is the time interval between downlink signal transmission and measurement reporting completion. L1-RSRP1T is the time when the terminal device performs reference signal measurement on the transceiver point TRP1. L1-RSRP2 T is the time when the terminal device performs reference signal measurement on TRP2. first-SSB T is the time difference between the demodulation of the Media Access Control (MAC) element CE by the terminal device and the first processable synchronization signal block (SSB). SSB-proc =2ms;

[0207] Wherein, if the reference signal used by the terminal device to perform reference signal measurement on TRP1 is the Channel State Information Reference Signal (CSI-RS), TO uk1 =1;

[0208] If the reference signal for the terminal device to perform reference signal measurement on TRP1 is SSB, TO uk1 =0;

[0209] If the reference signal used by the terminal device to perform reference signal measurement on TRP2 is the Channel State Information Reference Signal (CSI-RS), then TO uk21 =1;

[0210] If the reference signal for the terminal device to perform reference signal measurement on TRP2 is SSB, TO uk2 It is 0.

[0211] It should be noted that in the embodiments of this disclosure, S81 and S83 can be implemented individually or in combination with any other step in the embodiments of this disclosure, such as in combination with S41 and S42 and / or S51 to S53 in the embodiments of this disclosure. The embodiments of this disclosure do not limit this.

[0212] By implementing the embodiments of this disclosure, the network-side device, in response to determining that the Transmission Configuration Indication state (TCI state) needs to switch to a first target TCI state and a second target TCI state, determines the types of the first target TCI state and the second target TCI state. Since both the first target TCI state and the second target TCI state are of the second type, the device determines the switching delay according to a third calculation method. Thus, the switching delay for switching a TCI state to one of the two TCI states can be determined.

[0213] Please see Figure 10 , Figure 10 This is a flowchart of another method for determining switching delay provided in this embodiment of the disclosure.

[0214] like Figure 10 As shown, this method is executed by a network-side device, and the method may include, but is not limited to, the following steps:

[0215] S101: 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 type of the first target TCI state and the second target TCI state.

[0216] The relevant description of S91 can be found in the relevant description in the above embodiments, and will not be repeated here.

[0217] S102: In response to the fact that both the first target TCI state and the second target TCI state are of type 2, and it is determined that the terminal device does not support simultaneous measurement and reporting of multiple reference signals, the handover delay is determined according to the fourth calculation method.

[0218] The first type and the second type can be referred to in the relevant descriptions in the above embodiments, and will not be repeated here.

[0219] In some embodiments, the fourth calculation method is:

[0220] Switching delay Ts = T HARQ +3Ti+T L1-RSRP1 +T L1-RSRP2 +(TO uk1 +TO uk2 )*(T first-SSB +T SSB-proc ) / timeslot length;

[0221] Among them, T HARQ T is the time interval between downlink signal transmission and measurement reporting completion, where Ti is the number of time slots per frame under the subcarrier interval corresponding to downlink signal transmission, and T is the time interval between downlink signal transmission and measurement reporting completion. L1-RSRP1 T is the time when the terminal device performs reference signal measurement on the transceiver point TRP1. L1-RSRP2 T is the time when the terminal device performs reference signal measurement on TRP2. first-SSB T is the time difference between the demodulation of the Media Access Control (MAC) element CE by the terminal device and the first processable synchronization signal block (SSB). SSB-proc =2ms;

[0222] Wherein, if the reference signal used by the terminal device to perform reference signal measurement on TRP1 is the Channel State Information Reference Signal (CSI-RS), TO uk1 =1;

[0223] If the reference signal for the terminal device to perform reference signal measurement on TRP1 is SSB, TO uk1 =0;

[0224] If the reference signal used by the terminal device to perform reference signal measurement on TRP2 is the Channel State Information Reference Signal (CSI-RS), then TOuk21 =1;

[0225] If the reference signal for the terminal device to perform reference signal measurement on TRP2 is SSB, TO uk2 It is 0.

[0226] It should be noted that in the embodiments of this disclosure, S91 and S93 can be implemented individually or in combination with any other step in the embodiments of this disclosure, such as in combination with S41 and S42 and / or S51 to S53 in the embodiments of this disclosure. The embodiments of this disclosure do not limit this.

[0227] By implementing the embodiments of this disclosure, the network-side device, in response to determining that the Transmission Configuration Indication state (TCI state) needs to switch to a first target TCI state and a second target TCI state, determines the types of the first target TCI state and the second target TCI state. Since both the first target TCI state and the second target TCI state are of type second, and it is determined that the terminal device does not support simultaneous measurement and reporting of multiple reference signals, the switching delay is determined according to the fourth calculation method. Therefore, the switching delay for switching from one TCI state to two TCI states can be determined.

[0228] Please see Figure 11 , Figure 11 This is a flowchart of another method for determining switching delay provided in this embodiment of the disclosure.

[0229] like Figure 11 As shown, this method is executed by a network-side device, and the method may include, but is not limited to, the following steps:

[0230] S111: In response to determining that the Transmission Configuration Indicator (TCI) state needs to switch to the first target TCI state and the second target TCI state, determine the type of the first target TCI state and the second target TCI state.

[0231] The relevant description of S111 can be found in the relevant description in the above embodiments, and will not be repeated here.

[0232] S112: In response to the fact that both the first target TCI state and the second target TCI state are of the second type, and it is determined that the terminal device supports simultaneous measurement and reporting of multiple reference signals, the handover delay is determined according to the fifth calculation method.

[0233] The first type and the second type can be referred to in the relevant descriptions in the above embodiments, and will not be repeated here.

[0234] In some embodiments, the fifth calculation method is:

[0235] 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 )} / timeslot length;

[0236] Among them, T HARQ T is the time interval between downlink signal transmission and measurement reporting completion, where Ti is the number of time slots per frame under the subcarrier interval corresponding to downlink signal transmission, and T is the time interval between downlink signal transmission and measurement reporting completion. L1-RSRP1 T is the time when the terminal device performs reference signal measurement on TRP1. L1-RSRP2 T is the time when the terminal device performs reference signal measurement on TRP2. first-SSB T is the time difference between the demodulation of the MAC CE by the terminal device and the first processable SSB. SSB-proc =2ms;

[0237] Wherein, if the reference signal used by the terminal device to perform reference signal measurement on TRP1 is the Channel State Information Reference Signal (CSI-RS), TO uk1 =1;

[0238] If the reference signal for the terminal device to perform reference signal measurement on TRP1 is SSB, TO uk1 =0;

[0239] If the reference signal used by the terminal device to perform reference signal measurement on TRP2 is CSI-RS, TO uk2 =1;

[0240] If the reference signal for the terminal device to perform reference signal measurement on TRP2 is SSB, TO uk2 It is 0.

[0241] It should be noted that in the embodiments of this disclosure, S101 and S103 can be implemented individually or in combination with any other step in the embodiments of this disclosure, such as in combination with S41 and S42 and / or S51 to S53 in the embodiments of this disclosure. The embodiments of this disclosure do not limit this.

[0242] By implementing the embodiments of this disclosure, the network-side device, in response to determining that the Transmission Configuration Indication state (TCI state) needs to switch to a first target TCI state and a second target TCI state, determines the types of the first target TCI state and the second target TCI state. Since both the first target TCI state and the second target TCI state are of 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. Therefore, the switching delay for switching from one TCI state to two TCI states can be determined.

[0243] Please see Figure 12 , Figure 12 This is a flowchart of another measurement configuration method provided in this embodiment.

[0244] like Figure 12 As shown, this method is executed by a terminal device, and the method may include, but is not limited to, the following steps:

[0245] S121: Receive handover configuration information sent by the network-side device, wherein the handover configuration information is used to instruct the terminal device to use the first target TCI state and the second target TCI state for transmission.

[0246] In this embodiment of the present disclosure, the terminal device can receive handover configuration information sent by the network-side device, which instructs the terminal device to use a first target TCI state and a second target TCI state for transmission. The terminal device can receive the handover configuration information sent by the network-side device by receiving RRC, MAC CE, or DCI sent by the network-side device.

[0247] S122: Receive scheduling information sent by the network-side device after the handover delay, wherein the scheduling information is used to schedule the terminal device to perform uplink transmission and / or downlink transmission, and the handover delay is determined by the network-side device according to the first target TCI state and the second target TCI state.

[0248] In this embodiment of the disclosure, the terminal device can receive scheduling information sent by the network-side device after a handover delay. The scheduling information is used to schedule the terminal device to perform uplink and / or downlink transmissions. The handover delay is determined by the network-side device based on a first target TCI state and a second target TCI state. Therefore, it can be ensured that when the network-side device schedules the terminal device to perform uplink and / or downlink transmissions, the terminal device has already completed the TCI state handover, allowing the terminal device to use both the first and second target TCI states for transmission.

[0249] The method by which the network-side device determines the handover latency based on the first target TCI state and the second target TCI state can be found in the relevant description in the above embodiments.

[0250] 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.

[0251] In some embodiments, the capability information is a single bit. When the bit is of a first value, it indicates that the terminal device supports simultaneous measurement and reporting of multiple reference signals; when the bit is of a second value, it indicates that the terminal device does not support simultaneous measurement and reporting of multiple reference signals.

[0252] In this embodiment of the present disclosure, the terminal device reports capability information to the network-side device. The capability information can be a single 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.

[0253] For example, when the bit is "1", it indicates that the terminal device supports simultaneous measurement and reporting of multiple reference signals; when the bit is "0", it indicates that the terminal device does not support simultaneous measurement and reporting of multiple reference signals.

[0254] For example, when the bit is "0", it indicates that the terminal device supports simultaneous measurement and reporting of multiple reference signals; when the bit is "1", it indicates that the terminal device does not support simultaneous measurement and reporting of multiple reference signals.

[0255] By implementing the embodiments of this disclosure, the terminal device receives handover configuration information sent by the network-side device. This handover configuration information instructs the terminal device to switch to a first target TCI state and a second target TCI state. The terminal device also receives configuration information sent by the network-side device, instructing it to use the first target TCI state and the second target TCI state for transmission after a handover delay. The handover delay is determined by the network-side device based on the first target TCI state and the second target TCI state. Therefore, the terminal device can determine that it will use the first target TCI state and the second target TCI state for transmission after the handover delay, thus ensuring communication quality.

[0256] In the embodiments provided above, the methods provided by the embodiments of the present disclosure are described from the perspectives of terminal devices and network-side devices, respectively.

[0257] Please see Figure 13 This is a schematic diagram of the structure of a communication device 1 provided in an embodiment of the present disclosure. Figure 13 The communication device 1 shown 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 the sending function, and the receiving module is used to implement the receiving function. The transceiver module can implement both sending and / or receiving functions.

[0258] Communication device 1 can be a terminal device, a device within a terminal device, or a device compatible with a terminal device. Alternatively, communication device 1 can be a network-side device, a device within a network-side device, or a device compatible with a network-side device.

[0259] Communication device 1 is configured on the network side equipment:

[0260] The device includes: a processing module 12.

[0261] The transceiver module 11 is configured to determine a switching delay based on 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 switch to the first target TCI state and the second target TCI state.

[0262] In some embodiments, the configuration further includes a transceiver module 11.

[0263] 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.

[0264] 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 and / or downlink transmission.

[0265] In some embodiments, the processing module 12 is further configured to, in response to 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 switching configuration information to the terminal device, determine that the type of the first target TCI state is a first type;

[0266] In response to the fact that no measurement result of the reference signal corresponding to the first target TCI state reported by the terminal device is received within a specific time before the handover configuration information is sent to the terminal device, the type of the first target TCI state is determined to be the second type;

[0267] In response to 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, the type of the second target TCI state is determined to be the first type;

[0268] In response to the fact that no measurement result of the reference signal corresponding to the second target TCI state reported by the terminal device is received within a certain period of time before the handover configuration information is sent to the terminal device, the type of the second target TCI state is determined to be the second type.

[0269] In some embodiments, the processing module 12 is further configured to perform at least one of the following:

[0270] Since both the first target TCI state and the second target TCI state are of the first type, the handover delay is determined according to the first calculation method.

[0271] In response to the first target TCI state and the second target TCI state being of type 1 and type 2 respectively, the handover delay is determined according to the second calculation method;

[0272] Since both the first target TCI state and the second target TCI state are of type 2, the handover delay is determined according to the third calculation method.

[0273] In response to the fact that both the first target TCI state and the second target TCI state are of type 2, and it is determined that the terminal device does not support simultaneous measurement and reporting of multiple reference signals, the handover delay is determined according to the fourth calculation method.

[0274] In response to the fact that both the first target TCI state and the second target TCI state are of type 2, and it is determined that the terminal device supports simultaneous measurement and reporting of multiple reference signals, the handover delay is determined according to the fifth calculation method.

[0275] In some embodiments, the first calculation method is:

[0276] Switching delay Ts = T HARQ +3Ti+TO k *(T first-SSB +T SSB-proc ) / timeslot length;

[0277] Among them, T HARQ T is the time interval between downlink signal transmission and measurement reporting completion, where Ti is the number of time slots per frame under the subcarrier interval corresponding to downlink signal transmission, and T is the time interval between downlink signal transmission and measurement reporting completion. first-SSBT is the time difference between the demodulation of the Media Access Control (MAC) element CE by the terminal device and the first processable synchronization signal block (SSB). SSB-proc =2ms;

[0278] Where both the first target TCI state and the second target TCI state are in the list of activated TCI states, TO k =0;

[0279] If at least one of the first target TCI state and the second target TCI state is not in the list of activated TCI states, TO k The value is 1.

[0280] In some embodiments, the second calculation method is: switching delay Ts = max{T1, T2}; wherein, the switching delay of the first target TCI state and the second target TCI state of type 1 is calculated using T1, and the switching delay of the first target TCI state and the second target TCI state of type 2 is calculated using T2;

[0281] T1 = T HARQ +3Ti+T L1-RSRP +TO uk *(T first-SSB +T SSB-proc ) / timeslot length;

[0282] T2 = T HARQ +3Ti+TO k *(T first-SSB +T SSB-proc ) / timeslot length;

[0283] Among them, T HARQ T is the time interval between downlink signal transmission and measurement reporting completion, where Ti is the number of time slots per frame under the subcarrier interval corresponding to downlink signal transmission, and T is the time interval between downlink signal transmission and measurement reporting completion. L1-RSRP T is the time T is for the terminal device to perform reference signal measurements. first-SSB T is the time difference between the demodulation of the MAC CE by the terminal device and the first processable SSB. SSB-proc =2ms;

[0284] Wherein, if one of the first target TCI states and the second target TCI state is of type 1, and both the first target TCI state and the second target TCI state are in the list of activated TCI states, then TO k =0;

[0285] If one of the first target TCI states and the second target TCI state of type 1 is not in the list of activated TCI states, TO k =1;

[0286] If the reference signal used by the terminal device to perform reference signal measurement is the Channel State Information Reference Signal (CSI-RS), TO uk =1;

[0287] If the reference signal for the terminal device to perform reference signal measurement is SSB, TO uk It is 0.

[0288] In some embodiments, the third and fourth calculation methods are as follows:

[0289] Switching delay Ts = T HARQ +3Ti+T L1-RSRP1 +T L1-RSRP2 +(TO uk1 +TO uk2 )*(T first-SSB +T SSB-proc ) / timeslot length;

[0290] Among them, T HARQ T is the time interval between downlink signal transmission and measurement reporting completion, where Ti is the number of time slots per frame under the subcarrier interval corresponding to downlink signal transmission, and T is the time interval between downlink signal transmission and measurement reporting completion. L1-RSRP1 T is the time when the terminal device performs reference signal measurement on the transceiver point TRP1. L1-RSRP2 T is the time when the terminal device performs reference signal measurement on TRP2. first-SSB T is the time difference between the demodulation of the Media Access Control (MAC) element CE by the terminal device and the first processable synchronization signal block (SSB). SSB-proc =2ms;

[0291] Wherein, if the reference signal used by the terminal device to perform reference signal measurement on TRP1 is the Channel State Information Reference Signal (CSI-RS), TO uk1 =1;

[0292] If the reference signal for the terminal device to perform reference signal measurement on TRP1 is SSB, TO uk1 =0;

[0293] If the reference signal used by the terminal device to perform reference signal measurement on TRP2 is the Channel State Information Reference Signal (CSI-RS), then TO uk21 =1;

[0294] If the reference signal for the terminal device to perform reference signal measurement on TRP2 is SSB, TO uk2 It is 0.

[0295] In some embodiments, the fifth calculation method is:

[0296] 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 )} / timeslot length;

[0297] Among them, T HARQ T is the time interval between downlink signal transmission and measurement reporting completion, where Ti is the number of time slots per frame under the subcarrier interval corresponding to downlink signal transmission, and T is the time interval between downlink signal transmission and measurement reporting completion. L1-RSRP1 T is the time when the terminal device performs reference signal measurement on TRP1. L1-RSRP2 T is the time when the terminal device performs reference signal measurement on TRP2. first-SSB T is the time difference between the demodulation of the MAC CE by the terminal device and the first processable SSB. SSB-proc =2ms;

[0298] Wherein, if the reference signal used by the terminal device to perform reference signal measurement on TRP1 is the Channel State Information Reference Signal (CSI-RS), TO uk1 =1;

[0299] If the reference signal for the terminal device to perform reference signal measurement on TRP1 is SSB, TO uk1 =0;

[0300] If the reference signal used by the terminal device to perform reference signal measurement on TRP2 is CSI-RS, TO uk2 =1;

[0301] If the reference signal for the terminal device to perform reference signal measurement on TRP2 is SSB, TO uk2 It is 0.

[0302] In some embodiments, the transceiver module 11 is further configured to 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.

[0303] In some embodiments, the capability information is a single bit. When the bit is of a first value, it indicates that the terminal device supports simultaneous measurement and reporting of multiple reference signals; when the bit is of a second value, it indicates that the terminal device does not support simultaneous measurement and reporting of multiple reference signals.

[0304] Communication device 1 is configured in the terminal equipment:

[0305] The device includes a transceiver module 11.

[0306] The transceiver module 11 is configured to receive handover configuration information sent by the network-side device, wherein the handover configuration information is used to instruct the terminal device to transmit using the first target TCI state and the second target TCI state.

[0307] The transceiver module 11 is also configured to receive scheduling information sent by the network-side device after the handover delay, wherein the scheduling information is used to schedule the terminal device to perform uplink transmission and / or downlink transmission, and the handover delay is determined by the network-side device according to the first target TCI state and the second target TCI state.

[0308] 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.

[0309] In some embodiments, the capability information is a single bit. When the bit is of a first value, it indicates that the terminal device supports simultaneous measurement and reporting of multiple reference signals; when the bit is of a second value, it indicates that the terminal device does not support simultaneous measurement and reporting of multiple reference signals.

[0310] Regarding the communication device 1 in the above embodiments, the specific methods by which each module performs operations have been described in detail in the embodiments related to the method, and will not be elaborated here.

[0311] The communication device 1 provided in the above embodiments of this disclosure achieves the same or similar beneficial effects as the method for determining the switching delay provided in some of the above embodiments, and will not be repeated here.

[0312] Please see Figure 14 , Figure 14 This is a schematic diagram of another communication device 1000 provided in this embodiment. The communication device 1000 can be a terminal device, a network-side device, a chip, chip system, or processor that supports the terminal device in implementing the above methods, or a chip, chip system, or processor that supports the network-side device in implementing the above methods. This communication device 1000 can be used to implement the methods described in the above method embodiments; for details, please refer to the descriptions in the above method embodiments.

[0313] The communication device 1000 may include one or more processors 1001. The processor 1001 may be a general-purpose processor or a dedicated processor, such as a baseband processor or a central processing unit (CPU). The baseband processor can be used to process communication protocols and communication data, while the CPU can be used to control the communication device (e.g., network-side equipment, baseband chip, terminal equipment, terminal equipment chip, DU or CU, etc.), execute computer programs, and process data from the computer programs.

[0314] Optionally, the communication device 1000 may further include one or more memories 1002, which may store a computer program 1004. The memories 1002 execute the computer program 1004 to cause the communication device 1000 to perform the methods described in the above method embodiments. Optionally, the memories 1002 may also store data. The communication device 1000 and the memories 1002 may be provided separately or integrated together.

[0315] 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, transceiver, or transceiver circuit, etc., and is used to implement the transmission and reception functions. The transceiver 1005 may include a receiver and a transmitter. The receiver may be referred to as a receiver or receiving circuit, etc., and is used to implement the receiving function; the transmitter may be referred to as a transmitter or transmitting circuit, etc., and is used to implement the transmitting function.

[0316] 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 cause the communication device 1000 to perform the method described in the above method embodiments.

[0317] Communication device 1000 is a network-side device: processor 1001 is used to execute... Figure 4 S41 in: Figure 5 S51 in; Figure 6 S61 in; Figure 7 S71 and S72 in the text; Figure 8 S81 and S82 in the text; Figure 9 S91 and S82 in the text; Figure 10 S101 and S102 in the middle; Figure 11 S111 and S112 in the diagram. Transceiver 1005 is used to perform... Figure 5 S52 in the middle; Figure 6 S62 and S63 in the text.

[0318] Communication device 1000 is a terminal device: transceiver 1005 is used to perform... Figure 12 S121 and S122 in the example.

[0319] In one implementation, the processor 1001 may include a transceiver for implementing receiving and transmitting 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 receiving and transmitting functions may be separate or integrated. The aforementioned transceiver circuit, interface, or interface circuit can be used for reading and writing code / data, or it can be used for transmitting or relaying signals.

[0320] In one implementation, processor 1001 may store computer program 1003, which runs on processor 1001 and causes communication device 1000 to execute the methods described in the above method embodiments. Computer program 1003 may be embedded in processor 1001, in which case processor 1001 may be implemented in hardware.

[0321] In one implementation, the communication device 1000 may include circuitry capable of performing the functions of transmitting, receiving, or communicating as described in the foregoing method embodiments. The processor and transceiver described in this disclosure can be implemented on integrated circuits (ICs), analog ICs, radio frequency integrated circuits (RFICs), mixed-signal ICs, application-specific integrated circuits (ASICs), printed circuit boards (PCBs), electronic devices, etc. The processor and transceiver can also be manufactured using various IC process technologies, such as complementary metal-oxide-semiconductor (CMOS), n-metal-oxide-semiconductor (NMOS), positive-channel metal-oxide-semiconductor (PMOS), bipolar junction transistors (BJTs), bipolar CMOS (BiCMOS), silicon-germanium (SiGe), gallium arsenide (GaAs), etc.

[0322] 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 this disclosure is not limited thereto, and the structure of the communication device may vary. Figure 14 The communication device may be a standalone device or part of a larger device. For example, the communication device may be:

[0323] (1) Independent integrated circuit IC, or chip, or chip system or subsystem;

[0324] (2) A collection of one or more ICs, optionally including storage components for storing data and computer programs;

[0325] (3) ASIC, such as modem;

[0326] (4) Modules that can be embedded in other devices;

[0327] (5) Receivers, terminal equipment, smart terminal equipment, cellular phones, wireless equipment, handheld devices, mobile units, vehicle-mounted equipment, network equipment, cloud equipment, artificial intelligence equipment, etc.

[0328] (6) Others, etc.

[0329] For cases where the communication device can be a chip or a chip system, please refer to [link / reference]. Figure 15 This is a structural diagram of a chip provided in an embodiment of this disclosure.

[0330] Chip 1100 includes processor 1101 and interface 1103. The number of processors 1101 can be one or more, and the number of interfaces 1103 can be multiple.

[0331] Regarding the case where the chip is used to implement the functions of the terminal device in the embodiments of this disclosure:

[0332] Interface 1103 is used to receive code instructions and transmit them to the processor.

[0333] Processor 1101 is configured to run code instructions to perform the method for determining switching latency as described in some of the embodiments above.

[0334] For cases where the chip is used to implement the functions of the network-side device in the embodiments of this disclosure:

[0335] Interface 1103 is used to receive code instructions and transmit them to the processor.

[0336] Processor 1101 is configured to run code instructions to perform the method for determining switching latency as described in some of the embodiments above.

[0337] Optionally, chip 1100 may also include memory 1102, which is used to store necessary computer programs and data.

[0338] Those skilled in the art will also understand that the various illustrative logical blocks and steps listed in the embodiments of this disclosure can be implemented by electronic hardware, computer software, or a combination of both. Whether such functionality is implemented in hardware or software depends on the specific application and the overall system design requirements. Those skilled in the art can implement the described functionality using various methods for each specific application, but such implementation should not be construed as exceeding the scope of protection of the embodiments of this disclosure.

[0339] This disclosure also provides a system for determining switching delay, the system comprising the aforementioned Figure 13 In the embodiments, the communication device serves as a terminal device and the communication device serves as a network-side device; alternatively, the system includes the aforementioned components. Figure 14 The embodiments include a communication device as a terminal device and a communication device as a network-side device.

[0340] This disclosure also provides a readable storage medium having instructions stored thereon that, when executed by a computer, implement the functions of any of the above method embodiments.

[0341] This disclosure also provides a computer program product that, when executed by a computer, implements the functions of any of the above method embodiments.

[0342] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, as 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, all or part of the processes or functions described in the embodiments of this disclosure are generated. 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 transferred from one computer-readable storage medium to another. For example, the computer program can be transferred from one website, computer, server, or data center to another via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium accessible to a computer or a data storage device such as a server or data center that integrates one or more available media. The available media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., high-density digital video discs (DVDs)), or semiconductor media (e.g., solid-state disks (SSDs)).

[0343] Those skilled in the art will understand that the various numerical designations such as "first," "second," etc., used in this disclosure are merely for the convenience of description and are not intended to limit the scope of the embodiments of this disclosure, nor do they indicate the order of events.

[0344] At least one of the features described in this disclosure can also be described as one or more, and multiple features can be two, three, four or more, and this disclosure does not impose any limitations. In the embodiments of this disclosure, for a technical feature, the technical features in that technical feature are distinguished by "first", "second", "third", "A", "B", "C" and "D", etc., and there is no sequential order or size order among the technical features described by "first", "second", "third", "A", "B", "C" and "D".

[0345] The correspondences shown in the tables of this disclosure can be configured or predefined. The values ​​of the information in each table are merely examples and can be configured to other values; this disclosure is not limiting. When configuring the correspondences between information and parameters, it is not necessarily required to configure all the correspondences shown in each table. For example, the correspondences shown in some rows of the tables in this disclosure may not be configured. Furthermore, appropriate modifications and adjustments can be made based on the above tables, such as splitting, merging, etc. The names of the parameters shown in the headers of the above tables can also use other names that the communication device can understand, and the values ​​or representations of the parameters can also be other values ​​or representations that the communication device can understand. In the implementation of 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, etc.

[0346] The predefined terms in this disclosure can be understood as defined, predefined, stored, pre-stored, pre-negotiated, pre-configured, solidified, or pre-burned.

[0347] Those skilled in the art will recognize that the units and algorithm steps of the various examples 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 implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this disclosure.

[0348] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0349] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A method for determining switching delay, characterized in that, The method is executed by a network-side device and includes: In response to the determination that the Transmission Configuration Indication state (TCI state) needs to switch to 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. Determining the handover delay based on the types of the first target TCI state and the second target TCI state includes: in response to the fact that both the first target TCI state and the second target TCI state are of the first type, determining the handover delay according to a first calculation method; The first calculation method is: the switching delay Ts = T HARQ +3Ti+TO k (T first-SSB +T SSB-proc ) / slot length; Among them, T HARQ T is the time interval between downlink signal transmission and measurement reporting completion, where Ti is the number of time slots per frame under the subcarrier interval corresponding to downlink signal transmission, and T is the time interval between downlink signal transmission and measurement reporting completion. first-SSB T is the time difference between the demodulation of the Media Access Control (MAC) element CE by the terminal device and the first processable synchronization signal block (SSB). SSB-proc =2ms; If both the first target TCI state and the second target TCI state are in the list of activated TCI states, then the TO k =0; If at least one of the first target TCI state and the second target TCI state is not in the list of activated TCI states, the TO k The value is 1.

2. The method as described in claim 1, characterized in that, The method further includes: Send handover configuration information to the terminal device, wherein the handover configuration information is used to instruct the terminal device to use the first target TCI state and the second target TCI state for transmission.

3. The method as described in claim 1, characterized in that, The method further includes: 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 and / or downlink transmission.

4. The method as described in claim 1, characterized in that, The method further includes: Determine the types of the first target TCI state and the second target TCI state.

5. The method as described in claim 4, characterized in that, Determining the types of the first target TCI state and the second target TCI state includes: In response to receiving 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, the type of the first target TCI state is determined to be a first type; In response to the fact that no measurement result of the reference signal corresponding to the first target TCI state reported by the terminal device is received within a specific time before the handover configuration information is sent to the terminal device, the type of the first target TCI state is determined to be the second type; In response to 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, the type of the second target TCI state is determined to be the first type; In response to the fact that no measurement result of the reference signal corresponding to the second target TCI state reported by the terminal device is received within a certain period of time before the handover configuration information is sent to the terminal device, the type of the second target TCI state is determined to be the second type.

6. The method according to any one of claims 1 to 5, characterized in that, Determining the handover delay based on the types of the first target TCI state and the second target TCI state further includes at least one of the following: In response to the fact that 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, the switching delay is determined according to the second calculation method; In response to the fact that both the first target TCI state and the second target TCI state are of the second type, the handover delay is determined according to the third calculation method; In response to the fact that both the first target TCI state and the second target TCI state are of the second type, and it is determined that the terminal device does not support simultaneous measurement and reporting of multiple reference signals, the switching delay is determined according to the fourth calculation method; In response to the fact that both the first target TCI state and the second target TCI state are of 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.

7. The method as described in claim 6, characterized in that, The second calculation method is as follows: the switching delay Ts = max{T1, T2}; wherein, the switching delay is calculated using T1 for the first target TCI state and the second target TCI state of type 1, and the switching delay is calculated using T2 for the first target TCI state and the second target TCI state of type 2. T1=T HARQ +3Ti+T L1-RSRP +TO uk (T first-SSB +T SSB-proc ) / slot length; T2=T HARQ +3Ti+TO k (T first-SSB +T SSB-proc ) / slot length; Among them, T HARQ T is the time interval between downlink signal transmission and measurement reporting completion, where Ti is the number of time slots per frame under the subcarrier interval corresponding to downlink signal transmission, and T is the time interval between downlink signal transmission and measurement reporting completion. L1-RSRP T is the time during which the terminal device performs reference signal measurement. first-SSB T is the time difference between the demodulation of the MAC CE by the terminal device and the first processable SSB. SSB-proc =2ms; Wherein, if one of the first target TCI state and the second target TCI state of type the first type is in the list of activated TCI states, then the TO k =0; If one of the first target TCI states and the second target TCI state of type the first type is not in the list of activated TCI states, then the TO k =1; If the reference signal used by the terminal device to perform reference signal measurement is the Channel State Information Reference Signal (CSI-RS), then the TO uk =1; If the reference signal for the terminal device to perform reference signal measurement is SSB, then the TO uk It is 0.

8. The method as described in claim 6, characterized in that, The third and fourth calculation methods are as follows: The switching delay Ts=T HARQ +3Ti+T L1-RSRP1 +T L1-RSRP2 +(TO uk1 +TO uk2 ) (T first-SSB +T SSB-proc ) / timeslot length; Among them, T HARQ T is the time interval between downlink signal transmission and measurement reporting completion, where Ti is the number of time slots per frame under the subcarrier interval corresponding to downlink signal transmission, and T is the time interval between downlink signal transmission and measurement reporting completion. L1-RSRP1 T is the time during which the terminal device performs reference signal measurement at transceiver point TRP1. L1-RSRP2 T is the time during which the terminal device performs reference signal measurement on TRP2. first-SSB T is the time difference between the demodulation of the Media Access Control (MAC) CE element and the first processable synchronization signal block (SSB) in the terminal device. SSB-proc =2ms; Wherein, if the reference signal used by the terminal device to perform reference signal measurement on TRP1 is the Channel State Information Reference Signal (CSI-RS), the TO uk1 =1; If the reference signal for the terminal device to perform reference signal measurement on TRP1 is SSB, then the TO uk1 =0; If the reference signal used by the terminal device to perform reference signal measurement on TRP2 is the Channel State Information Reference Signal (CSI-RS), then the TO uk21 =1; If the reference signal for the terminal device to perform reference signal measurement on TRP2 is SSB, then the TO uk2 It is 0.

9. The method as described in claim 6, characterized in that, The fifth calculation method is as follows: 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 )} / timeslot length; Among them, T HARQ T is the time interval between downlink signal transmission and measurement reporting completion, where Ti is the number of time slots per frame under the subcarrier interval corresponding to downlink signal transmission, and T is the time interval between downlink signal transmission and measurement reporting completion. L1-RSRP1 T is the time during which the terminal device performs reference signal measurement on TRP1. L1-RSRP2 T is the time during which the terminal device performs reference signal measurement on TRP2. first-SSB T is the time difference between the demodulation of the MAC CE by the terminal device and the first processable SSB. SSB-proc =2ms; Wherein, if the reference signal used by the terminal device to perform reference signal measurement on TRP1 is the Channel State Information Reference Signal (CSI-RS), the TO uk1 =1; If the reference signal for the terminal device to perform reference signal measurement on TRP1 is SSB, then the TO uk1 =0; If the reference signal used by the terminal device to perform reference signal measurement on TRP2 is CSI-RS, then the TO uk2 =1; If the reference signal for the terminal device to perform reference signal measurement on TRP2 is SSB, then the TO uk2 It is 0.

10. The method as described in claim 6, characterized in that, The method further includes: The terminal device receives 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.

11. The method as described in claim 10, characterized in that, The capability information is a single bit. When the bit is of a first value, it indicates that the terminal device supports simultaneous measurement and reporting of multiple reference signals. When the bit is of a second value, it indicates that the terminal device does not support simultaneous measurement and reporting of multiple reference signals.

12. A method for determining switching delay, characterized in that, The method is executed by a terminal device and includes: The terminal device receives handover configuration information sent by the network-side device, wherein the handover 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 network-side device receives scheduling information sent after a handover delay, wherein the scheduling information is used to schedule the terminal device to perform uplink and / or downlink transmission, and the handover delay is determined by the network-side device according to a first calculation method when both the first target TCI state and the second target TCI state are of the first type. The first calculation method is: the switching delay Ts = T HARQ +3Ti+TO k (T first-SSB +T SSB-proc ) / slot length; Among them, T HARQ T is the time interval between downlink signal transmission and measurement reporting completion, where Ti is the number of time slots per frame under the subcarrier interval corresponding to downlink signal transmission, and T is the time interval between downlink signal transmission and measurement reporting completion. first-SSB T is the time difference between the demodulation of the Media Access Control (MAC) CE element and the first processable synchronization signal block (SSB) in the terminal device. SSB-proc =2ms; If both the first target TCI state and the second target TCI state are in the list of activated TCI states, then the TO k =0; If at least one of the first target TCI state and the second target TCI state is not in the list of activated TCI states, the TO k The value is 1.

13. The method as described in claim 12, characterized in that, The method further includes: 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.

14. The method as described in claim 13, characterized in that, The capability information is a single bit. When the bit is of a first value, it indicates that the terminal device supports simultaneous measurement and reporting of multiple reference signals. When the bit is of a second value, it indicates that the terminal device does not support simultaneous measurement and reporting of multiple reference signals.

15. A network-side device, characterized in that, The network-side device includes: The processing module is configured to determine a switching delay based on 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 switch to a first target TCI state and a second target TCI state. Determining the handover delay based on the types of the first target TCI state and the second target TCI state includes: in response to the fact that both the first target TCI state and the second target TCI state are of the first type, determining the handover delay according to a first calculation method; The first calculation method is: the switching delay Ts = T HARQ +3Ti+TO k (T first-SSB +T SSB-proc ) / slot length; Among them, T HARQ T is the time interval between downlink signal transmission and measurement reporting completion, where Ti is the number of time slots per frame under the subcarrier interval corresponding to downlink signal transmission, and T is the time interval between downlink signal transmission and measurement reporting completion. first-SSB T is the time difference between the demodulation of the Media Access Control (MAC) element CE by the terminal device and the first processable synchronization signal block (SSB). SSB-proc =2ms; If both the first target TCI state and the second target TCI state are in the list of activated TCI states, then the TO k =0; If at least one of the first target TCI state and the second target TCI state is not in the list of activated TCI states, the TO k The value is 1.

16. A terminal device, characterized in that, The terminal device includes: The transceiver module is configured to receive handover configuration information sent by the network-side device, wherein the handover configuration information is used to instruct the terminal device to transmit using a first target TCI state and a second target TCI state; The transceiver module is further configured to receive scheduling information sent by the network-side device after the handover delay, wherein the scheduling information is used to schedule the terminal device to perform uplink transmission and / or downlink transmission, and the handover delay is determined by the network-side device according to a first calculation method when both the first target TCI state and the second target TCI state are of the first type; The first calculation method is: the switching delay Ts = T HARQ +3Ti+TO k (T first-SSB +T SSB-proc ) / slot length; Among them, T HARQ T is the time interval between downlink signal transmission and measurement reporting completion, where Ti is the number of time slots per frame under the subcarrier interval corresponding to downlink signal transmission, and T is the time interval between downlink signal transmission and measurement reporting completion. first-SSB T is the time difference between the demodulation of the Media Access Control (MAC) CE element and the first processable synchronization signal block (SSB) in the terminal device. SSB-proc =2ms; If both the first target TCI state and the second target TCI state are in the list of activated TCI states, then the TO k =0; If at least one of the first target TCI state and the second target TCI state is not in the list of activated TCI states, the TO k The value is 1.

17. A communication system, characterized in that, The device includes a terminal device and a network-side device, wherein the network-side device is configured to implement the method of any one of claims 1 to 11, and the terminal device is configured to implement the method of any one of claims 12 to 14.

18. A communication device, characterized in that, The device includes a processor and a memory, the memory storing a computer program, the processor executing the computer program stored in the memory to cause the device to perform the method as claimed in any one of claims 1 to 11, or the processor executing the computer program stored in the memory to cause the device to perform the method as claimed in any one of claims 12 to 14.

19. A communication device, characterized in that, include: Processor and interface circuitry; The interface circuit is used to receive code instructions and transmit them to the processor; The processor is configured to execute the code instructions to perform the method as claimed in any one of claims 1 to 11, or to execute the code instructions to perform the method as claimed in any one of claims 12 to 14.

20. A computer-readable storage medium for storing instructions that, when executed, cause the method of any one of claims 1 to 11 to be implemented, or, when executed, cause the method of any one of claims 12 to 14 to be implemented.

21. A program product comprising at least one of a program and instructions, characterized in that, When at least one of the programs or instructions is executed by the communication device, it implements the steps of the method according to any one of claims 1 to 11, 12 to 14.

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