CN117280730A

CN117280730A - Communication method, terminal, network device, and storage medium

Info

Publication number: CN117280730A
Application number: CN202380010512.3A
Authority: CN
Inventors: 胡子泉; 陶旭华
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2023-08-07
Filing date: 2023-08-07
Publication date: 2023-12-22

Abstract

The present disclosure relates to a communication method, a terminal, a network device, and a storage medium, the communication method including: and receiving a first instruction, wherein the first instruction is used for instructing the terminal to switch to a first TCI state based on an aperiodic reference signal, and executing TCI state switching based on the aperiodic reference signal in a first time period. In the above embodiment, a method for switching to the first TCI state based on the aperiodic reference signal is provided, and because the period of time required for the aperiodic reference signal to perform TCI state switching is short, the period of time required for the terminal to perform TCI state switching is ensured to be shortened, the time delay of TCI state switching is reduced, and the reliability of communication is ensured.

Description

Communication method, terminal, network device, and storage medium

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a communications method, a terminal, a network device, and a storage medium.

Background

With the rapid development of mobile communication technology, a network device may instruct a terminal to perform TCI (Transmission Configuration Indicator, transmission configuration indication) state switching by a command. Specifically, the network device sends a command to the terminal, and after receiving the command sent by the network device, the terminal analyzes the command and performs TCI state switching.

Disclosure of Invention

The method and the device solve the problem of extension when TCI state switching is carried out on the terminal, reduce TCI state switching time delay and guarantee communication reliability.

The embodiment of the disclosure provides a communication method, a terminal, network equipment and a storage medium.

According to a first aspect of an embodiment of the present disclosure, a communication method is provided, including: receiving a first instruction, wherein the first instruction is used for indicating a terminal to switch to a first TCI state based on an aperiodic reference signal; the TCI state switching is performed based on the aperiodic reference signal during a first period.

According to a second aspect of the embodiments of the present disclosure, there is provided a communication method, including: and sending a first instruction, wherein the first instruction is used for indicating the terminal to switch to a first TCI state based on the aperiodic reference signal.

According to a third aspect of the embodiments of the present disclosure, a communication method is provided, the method including: the network equipment sends a first instruction which is used for indicating the terminal to switch to a first TCI state based on an aperiodic reference signal; the terminal receives a first instruction, and the terminal performs TCI state switching based on the aperiodic reference signal in a first time period.

According to a fourth aspect of embodiments of the present disclosure, there is provided a terminal, including: the receiving and transmitting module is used for receiving a first instruction, and the first instruction is used for indicating the terminal to switch to a first TCI state based on the aperiodic reference signal; and the processing module is used for executing TCI state switching based on the aperiodic reference signal in the first time period.

According to a fifth aspect of embodiments of the present disclosure, there is provided a network device, comprising: and the receiving and transmitting module is used for transmitting a first instruction, and the first instruction is used for indicating the terminal to switch to the first TCI state based on the aperiodic reference signal.

According to a sixth aspect of the embodiments of the present disclosure, there is provided a terminal, including: one or more processors; wherein the terminal is configured to perform the method of any one of the first aspects.

According to a seventh aspect of embodiments of the present disclosure, there is provided a network device, including: one or more processors; wherein the terminal is adapted to perform the method of any of the second aspects.

According to an eighth aspect of an embodiment of the present disclosure, there is provided a communication system including: a terminal configured to implement the communication method of the first aspect, and a network device configured to implement the communication method of the second aspect.

According to a ninth aspect of the embodiments of the present disclosure, a storage medium is presented, the storage medium storing instructions that, when run on a communication device, cause the communication device to perform the method of any one of the first or second aspects.

Drawings

The accompanying drawings, which are included to provide a further understanding of embodiments of the disclosure, illustrate and explain the exemplary embodiments of the disclosure and together with the description serve to explain the embodiments of the disclosure and do not constitute an undue limitation on the embodiments of the disclosure. In the drawings:

Fig. 1A is a schematic architecture diagram of a communication system shown in accordance with an embodiment of the present disclosure;

FIG. 1B is a schematic diagram of a time duration structure provided by an embodiment of the present disclosure;

FIG. 1C is a schematic diagram of a time duration structure provided by an embodiment of the present disclosure;

FIG. 2 is an interactive schematic diagram of a communication method shown in accordance with an embodiment of the present disclosure;

FIG. 3A is a flow diagram illustrating a communication method according to an embodiment of the present disclosure;

FIG. 3B is a flow chart diagram of a communication method shown in accordance with an embodiment of the present disclosure;

FIG. 4A is a flow diagram illustrating a communication method according to an embodiment of the present disclosure;

fig. 4B is a flow diagram of a communication method shown in accordance with an embodiment of the present disclosure;

FIG. 5 is a flow diagram of a communication method shown in accordance with an embodiment of the present disclosure;

FIG. 6 is a flow diagram of a communication method shown in accordance with an embodiment of the present disclosure;

fig. 7A is a schematic structural diagram of a terminal according to an embodiment of the present disclosure;

fig. 7B is a schematic structural diagram of a network device according to an embodiment of the present disclosure;

fig. 8A is a schematic structural diagram of a communication device according to an embodiment of the present disclosure;

fig. 8B is a schematic structural diagram of a communication device according to an embodiment of the present disclosure.

Detailed Description

The present disclosure provides a communication method, a terminal, and a storage medium.

In a first aspect, an embodiment of the present disclosure provides a communication method, including: receiving a first instruction, wherein the first instruction is used for indicating a terminal to switch to a first TCI state based on an aperiodic reference signal; the TCI state switching is performed based on the aperiodic reference signal during a first period.

In the above embodiment, a method for switching to the first TCI state based on the aperiodic reference signal is provided, and because the period of time required for the aperiodic reference signal to perform TCI state switching is short, the period of time required for the terminal to perform TCI state switching is ensured to be shortened, the time delay of TCI state switching is reduced, and the reliability of communication is ensured.

In combination with some embodiments of the first aspect, in some embodiments, a second instruction is received, the second instruction being for instructing the terminal to turn on a first function, the first function instructing to perform a TCI state switch based on the aperiodic reference signal.

In the above embodiment, the function of performing TCI state switching based on the aperiodic reference signal is started by the instruction to instruct the terminal, so that the terminal can perform TCI state switching based on the aperiodic reference signal, and since the period of time required for performing TCI state switching by the aperiodic reference signal is short, the period of time required for performing TCI state switching by the terminal is ensured to be shortened, the time delay of TCI state switching is reduced, and the reliability of communication is ensured.

With reference to some embodiments of the first aspect, in some embodiments, the method further includes: and sending a third instruction, wherein the third instruction is used for indicating the terminal to support switching to the first TCI state based on the aperiodic reference signal.

In the above embodiment, the terminal itself supports the capability of switching to the first TCI state based on the aperiodic reference signal through the instruction transmission, so that the network device may control the terminal to perform TCI state switching based on the aperiodic reference signal, thereby ensuring that the duration required by the terminal for performing TCI state switching is shortened, reducing the time delay of TCI state switching, and ensuring the reliability of communication.

With reference to some embodiments of the first aspect, in some embodiments, the method further includes: a fourth instruction is received, the fourth instruction for configuring the aperiodic reference signal.

In the above embodiment, the network device configures the aperiodic reference signal for the terminal, so that the terminal can receive the aperiodic reference signal, and ensure the accuracy of detecting the aperiodic reference signal by the terminal, thereby ensuring that the terminal performs TCI state switching based on the aperiodic reference signal, shortening the time required by the terminal to perform TCI state switching, reducing the TCI state switching delay, and ensuring the communication reliability.

With reference to some embodiments of the first aspect, in some embodiments, the fourth instruction includes a resource location of the aperiodic reference signal.

In the above embodiment, after determining the resource position of the aperiodic reference signal, the terminal can receive the aperiodic reference signal, so as to ensure the accuracy of detecting the aperiodic reference signal by the terminal, further ensure that the terminal performs TCI state switching based on the aperiodic reference signal, ensure that the duration required by the terminal for performing TCI state switching is shortened, reduce the TCI state switching delay, and ensure the communication reliability.

With reference to some embodiments of the first aspect, in some embodiments, the first time period is determined based on at least one of a first time period, a second time period, a third time period, or a fourth time period, the first time period indicating a sum of a time period for downlink data transmission, receiving feedback, and a time period for decoding the first instruction; or, the first time length indicates a time length for decoding the first instruction, the second time length indicates a time length for receiving the aperiodic reference signal for the first time, the third time length indicates a layer 1 reference signal received power L1-RSRP measurement time length for beam refinement, and the fourth time length indicates a fixed time length.

In the above embodiment, the terminal determines the first time period by using a plurality of time periods, ensures that the determined first time period comprehensively considers the influence of each time period, ensures the accuracy of the determined first time period, further improves the accuracy of the terminal for performing TCI state switching in the first time period, and in addition, the terminal performs TCI state switching in the first time period based on the aperiodic reference signal, ensures shortening of the time period required by the terminal for performing TCI state switching, reduces the TCI state switching time delay and ensures the communication reliability.

With reference to some embodiments of the first aspect, the first TCI state is known, and the first time period is determined based on the first time period, the second time period, and the fourth time period.

In the above embodiment, when the first TCI state is known, the duration required to be determined in the first period is determined, so that the accuracy of the determined first period is ensured, and further, the accuracy of the terminal for performing TCI state switching in the first period is improved.

With reference to some embodiments of the first aspect, in some embodiments, the first period of time is a period of time starting at a time when the first command is received and ending at a time when the first, second, and fourth durations have elapsed.

In the above embodiment, after determining a plurality of durations included in the first period, the endpoint of the first period may be determined, so as to ensure accuracy of the determined first period, further improve accuracy of TCI state switching performed by the terminal in the first period, and in addition, the terminal performs TCI state switching based on the aperiodic reference signal in the first period, so as to ensure shortening of duration required by the terminal for TCI state switching, reduce TCI state switching delay, and ensure communication reliability.

In combination with some embodiments of the first aspect, in some embodiments, the first TCI state is unknown, and the first time period is determined based on the first time period, the second time period, the third time period, and the fourth time period.

In the above embodiment, when the first TCI state is unknown, the duration required to be determined in the first period is determined, so that the accuracy of the determined first period is ensured, and further, the accuracy of the terminal for performing TCI state switching in the first period is improved.

With reference to some embodiments of the first aspect, in some embodiments, the first period of time is a period of time starting at a time when the first command is received and ending at a time when the first, second, third, and fourth durations have elapsed.

With reference to some embodiments of the first aspect, in some embodiments the first TCI state and the aperiodic reference signal are QCL.

In combination with some embodiments of the first aspect, in some embodiments, the first TCI state is unknown, and the first time period is determined based on the first time period, the second time period, and the third time period.

With reference to some embodiments of the first aspect, in some embodiments, the first period of time is a period of time starting at a time when the first command is received and ending at a time when the first, second, and third durations have elapsed.

With reference to some embodiments of the first aspect, in some embodiments, the first TCI state and the aperiodic reference signal are QCL-type (Quasi Co-Location-type D), and the reference signal for L1-RSRP (L1-Reference Signal Received Power, layer 1-reference signal received power) measurement is a source reference signal of the first TCI state; or, the first TCI state and the aperiodic reference signal are QCL-type d, and the reference signal for L1-RSRP (Reference Signal Received Power ) measurement and the source reference signal of the first TCI state are QCL-type d.

In the above embodiment, the first TCI state and the aperiodic reference signal belong to the same QCL (Quasi Co-Location), and the reference signal used for L1-RSRP measurement is the same as the source reference signal, so that a plurality of durations are found to determine a first period, the accuracy of the determined first period is ensured, further the accuracy of TCI state switching performed by the terminal in the first period is improved, in addition, the terminal performs TCI state switching based on the aperiodic reference signal in the first period, the duration required by TCI state switching performed by the terminal is ensured to be shortened, the TCI state switching delay is reduced, and the communication reliability is ensured.

With reference to some embodiments of the first aspect, in some embodiments, the first TCI state is known to include at least one of: receiving the first command within a second preset time period after the last transmission of the beam report or the measurement reference signal within a second time period; in a second period of time, at least one L1-RSRP report for the first TCI state has been sent prior to the first command; during the TCI state switching, the TCI state is in a detectable state during a second period of time; during a second period of time, during a TCI state switch, SSB (PSS/SSS PBCH Block, synchronization signal Block) associated with the TCI state is in a detectable state; during the second period, the SNR (Signal Noise Ratio, signal-to-noise ratio) of the TCI State is not less than the first value; the starting point of the second time period is the last transmission of the reference signal resource, and the end point is the moment of completing the TCI state switching; the reference signal is a reference signal for performing L1-RSRP measurements for the first TCI state and the reference signal is a source reference signal for the first TCI state or the reference signal and the source reference signal for the first TCI state are QCL.

In the above embodiment, whether the TCI state is known is determined through multiple conditions, so that the accuracy of determining the TCI state is ensured, the accuracy of determining the first time period is further ensured, and the accuracy of communication of the terminal in the first time period is further improved.

With reference to some embodiments of the first aspect, in some embodiments, the method further includes: the first time domain resource after the end of the first time period receives a PDCCH (Physical Downlink Control Channel ) in a first TCI state.

In the above embodiment, after the first period of time is over, the terminal switches to the first TCI state, and at this time, the terminal may receive the PDCCH, so as to ensure the reliability of the communication performed by the terminal.

In a second aspect, embodiments of the present disclosure provide a communication method, the method including: and sending a first instruction, wherein the first instruction is used for indicating the terminal to switch to a first TCI state based on the aperiodic reference signal.

With reference to some embodiments of the first aspect, in some embodiments, the method further includes: the terminal is determined to switch to a first TCI state based on the aperiodic reference signal.

With reference to some embodiments of the first aspect, in some embodiments, the method further includes: and sending a fourth instruction, wherein the fourth instruction is used for configuring the aperiodic reference signal.

In combination with some embodiments of the first aspect, in some embodiments, the first TCI state is known, and the first time period is determined based on the first time period, the second time period, and the fourth time period.

With reference to some embodiments of the first aspect, in some embodiments, the first TCI state and the aperiodic reference signal are QCL-type and the reference signal used for L1-RSRP measurement is a source reference signal of the first TCI state; alternatively, the first TCI state and the aperiodic reference signal are QCL-TypeD, and the reference signal for L1-RSRP measurement and the source reference signal for the first TCI state are QCL-TypeD.

With reference to some embodiments of the first aspect, in some embodiments, the first TCI state is known to include at least one of: receiving the first command within a second preset time period after the last transmission of the beam report or the measurement reference signal within a second time period; in a second period of time, at least one L1-RSRP report for the first TCI state has been sent prior to the first command; during the TCI state switching, the TCI state is in a detectable state during a second period of time; during the TCI state switch, the SSB associated with the TCI state is in a detectable state for a second period of time; during a second period of time, the SNR of the TCI State is not less than the first value; the starting point of the second time period is the last transmission of the reference signal resource, and the end point is the moment of completing the TCI state switching; the reference signal is a reference signal for performing L1-RSRP measurements for the first TCI state and the reference signal is a source reference signal for the first TCI state or the reference signal and the source reference signal for the first TCI state are QCL.

With reference to some embodiments of the first aspect, in some embodiments, the method further includes: the first time domain resource after the end of the first time period transmits the PDCCH of the first TCI state.

In a third aspect, an embodiment of the present disclosure provides a communication method, including: the network equipment sends a first instruction which is used for indicating the terminal to switch to a first TCI state based on an aperiodic reference signal; the terminal receives a first instruction; the terminal performs TCI state switching based on the aperiodic reference signal for a first period of time.

In a fourth aspect, an embodiment of the present disclosure provides a terminal, where the terminal includes at least one of a transceiver module and a processing module; wherein the terminal is configured to perform the optional implementation manners of the first aspect and the third aspect.

In a fifth aspect, an embodiment of the present disclosure provides a network device, where the access network device includes at least one of a transceiver module and a processing module; wherein the access network device is configured to perform the optional implementation manners of the second aspect and the third aspect.

In a sixth aspect, an embodiment of the present disclosure provides a terminal, including: one or more processors; wherein the terminal is configured to perform the method of any one of the first and third aspects.

In a seventh aspect, embodiments of the present disclosure provide a network device, including: one or more processors; wherein the network device is adapted to perform the method of any one of the second and third aspects.

In an eighth aspect, an embodiment of the present disclosure provides a storage medium storing first information that, when executed on a communication device, causes the communication device to perform a method according to any one of the first aspect, the second aspect, and the third aspect.

In a ninth aspect, embodiments of the present disclosure provide a program product, which when executed by a communication device, causes the communication device to perform a method as in any of the first, second and third aspects.

In a tenth aspect, the presently disclosed embodiments propose a computer program which, when run on a communication device, causes the communication device to perform the method as in any of the first, second and third aspects.

In an eleventh aspect, embodiments of the present disclosure provide a chip or chip system. The chip or chip system comprises processing circuitry configured to perform the method of any of the first aspect, the second aspect and the third aspect.

It will be appreciated that the above-described terminal, storage medium, program product, computer program, chip or chip system are all adapted to perform the methods set forth in the embodiments of the present disclosure. Therefore, the advantages achieved by the method can be referred to as the advantages of the corresponding method, and will not be described herein.

The embodiment of the disclosure provides a communication method, a terminal, network equipment and a storage medium. In some embodiments, terms such as a communication method and an information processing method, an indication method, and the like may be replaced with each other, terms such as a communication device and an information processing device, an indication device, and the like may be replaced with each other, and terms such as an information processing system, a communication system, and the like may be replaced with each other.

The embodiments of the present disclosure are not intended to be exhaustive, but rather are exemplary of some embodiments and are not intended to limit the scope of the disclosure. In the case of no contradiction, each step in a certain embodiment may be implemented as an independent embodiment, and the steps may be arbitrarily combined, for example, a scheme in which part of the steps are removed in a certain embodiment may also be implemented as an independent embodiment, the order of the steps in a certain embodiment may be arbitrarily exchanged, and further, alternative implementations in a certain embodiment may be arbitrarily combined; furthermore, various embodiments may be arbitrarily combined, for example, some or all steps of different embodiments may be arbitrarily combined, and an embodiment may be arbitrarily combined with alternative implementations of other embodiments.

In the various embodiments of the disclosure, terms and/or descriptions of the various embodiments are consistent throughout the various embodiments and may be referenced to each other in the absence of any particular explanation or logic conflict, and features from different embodiments may be combined to form new embodiments in accordance with their inherent logic relationships.

The terminology used in the embodiments of the disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure.

In the presently disclosed embodiments, elements that are expressed in the singular, such as "a," "an," "the," etc., may mean "one and only one," or "one or more," "at least one," etc., unless otherwise indicated. For example, where an article (article) is used in translation, such as "a," "an," "the," etc., in english, a noun following the article may be understood as a singular expression or as a plural expression.

In the presently disclosed embodiments, "plurality" refers to two or more.

In some embodiments, terms such as "at least one of", "one or more of", "multiple of" and the like may be substituted for each other.

In some embodiments, "A, B at least one of", "a and/or B", "in one case a, in another case B", "in response to one case a", "in response to another case B", and the like, may include the following technical solutions according to circumstances: in some embodiments a (a is performed independently of B); b (B is performed independently of a) in some embodiments; in some embodiments, execution is selected from a and B (a and B are selectively executed); in some embodiments a and B (both a and B are performed). Similar to that described above when there are more branches such as A, B, C.

In some embodiments, the description modes such as "a or B" may include the following technical schemes according to circumstances: in some embodiments a (a is performed independently of B); b (B is performed independently of a) in some embodiments; in some embodiments execution is selected from a and B (a and B are selectively executed). Similar to that described above when there are more branches such as A, B, C.

The prefix words "first", "second", etc. in the embodiments of the present disclosure are only for distinguishing different description objects, and do not limit the location, order, priority, number, content, etc. of the description objects, and the statement of the description object refers to the claims or the description of the embodiment context, and should not constitute unnecessary limitations due to the use of the prefix words. For example, if the description object is a "field", the ordinal words before the "field" in the "first field" and the "second field" do not limit the position or the order between the "fields", and the "first" and the "second" do not limit whether the "fields" modified by the "first" and the "second" are in the same message or not. For another example, describing an object as "level", ordinal words preceding "level" in "first level" and "second level" do not limit priority between "levels". As another example, the number of descriptive objects is not limited by ordinal words, and may be one or more, taking "first device" as an example, where the number of "devices" may be one or more. Furthermore, objects modified by different prefix words may be the same or different, e.g., the description object is "a device", then "a first device" and "a second device" may be the same device or different devices, and the types may be the same or different; for another example, the description object is "information", and the "first information" and the "second information" may be the same information or different information, and the contents thereof may be the same or different.

In some embodiments, "comprising a", "containing a", "for indicating a", "carrying a", may be interpreted as carrying a directly, or as indicating a indirectly.

In some embodiments, terms such as "time/frequency", "time-frequency domain", and the like refer to the time domain and/or the frequency domain.

In some embodiments, terms "responsive to … …", "responsive to determination … …", "in the case of … …", "at … …", "when … …", "if … …", "if … …", and the like may be interchanged.

In some embodiments, terms "greater than", "greater than or equal to", "not less than", "more than or equal to", "not less than", "above" and the like may be interchanged, and terms "less than", "less than or equal to", "not greater than", "less than or equal to", "not more than", "below", "lower than or equal to", "no higher than", "below" and the like may be interchanged.

In some embodiments, the apparatuses and devices may be interpreted as entities, or may be interpreted as virtual, and the names thereof are not limited to those described in the embodiments, and may also be interpreted as "device (apparatus)", "device)", "circuit", "network element", "node", "function", "unit", "component (section)", "system", "network", "chip system", "entity", "body", and the like in some cases.

In some embodiments, a "network" may be interpreted as an apparatus comprised in the network, e.g. an access network device, a core network device, etc.

In some embodiments, the "access network device (access network device, AN device)" may also be referred to as a "radio access network device (radio access network device, RAN device)", "Base Station (BS)", "radio base station (radio base station)", "fixed station (fixed station)", and in some embodiments may also be referred to as a "node)", "access point (access point)", "transmission point (transmission point, TP)", "Reception Point (RP)", "transmission and/or reception point (transmission/reception point), TRP)", "panel", "antenna array", "cell", "macrocell", "microcell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier (component carrier)", bandwidth part (BWP), etc.

In some embodiments, a "terminal" or "terminal device" may be referred to as a "user equipment" (terminal) "," user terminal "(MS)", "mobile station (MT)", subscriber station (subscriber station), mobile unit (mobile unit), subscriber unit (subscore unit), wireless unit (wireless unit), remote unit (remote unit), mobile device (mobile device), wireless device (wireless device), wireless communication device (wireless communication device), remote device (remote device), mobile subscriber station (mobile subscriber station), access terminal (access terminal), mobile terminal (mobile terminal), wireless terminal (wireless terminal), remote terminal (mobile terminal), handheld device (handset), user agent (user), mobile client (client), client, etc.

In some embodiments, the acquisition of data, information, etc. may comply with laws and regulations of the country of locale.

In some embodiments, data, information, etc. may be obtained after user consent is obtained.

Furthermore, each element, each row, or each column in the tables of the embodiments of the present disclosure may be implemented as a separate embodiment, and any combination of elements, any rows, or any columns may also be implemented as a separate embodiment.

Fig. 1A is a schematic architecture diagram of a communication system according to an embodiment of the disclosure, and as shown in fig. 1A, a method provided by an embodiment of the disclosure may be applied to a communication system 100, which may include a terminal 101 and a network device 102. It should be noted that, the communication system 100 may further include other devices, and the disclosure is not limited to the devices included in the communication system 100.

In some embodiments, the terminal 101 includes at least one of a mobile phone (mobile phone), a wearable device, an internet of things device, a communication enabled car, a smart car, a tablet (Pad), a wireless transceiver enabled computer, a Virtual Reality (VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in unmanned (self-driving), a wireless terminal device in teleoperation (remote medical surgery), a wireless terminal device in smart grid (smart grid), a wireless terminal device in transportation security (transportation safety), a wireless terminal device in smart city (smart city), a wireless terminal device in smart home (smart home), for example, but is not limited thereto.

In some embodiments, the network device 102 may include at least one of an access network device and a core network device.

In some embodiments, the access network device is, for example, a node or a device that accesses the terminal 101 to a wireless network, and the access network device may include at least one of an evolved NodeB (eNB), a next generation NodeB (next generation eNB, ng-eNB), a next generation NodeB (next generation NodeB, gNB), a NodeB (node B, NB), a Home NodeB (HNB), a home NodeB (home evolved nodeB, heNB), a wireless backhaul device, a radio network controller (radio network controller, RNC), a base station controller (base station controller, BSC), a base transceiver station (base transceiver station, BTS), a baseband unit (BBU), a mobile switching center, a base station in a 6G communication system, an Open base station (Open RAN), a Cloud base station (Cloud RAN), a base station in other communication systems, an access node in a Wi-Fi system, but is not limited thereto.

In some embodiments, the technical solutions of the present disclosure may be applied to an Open RAN architecture, where an access network device or an interface in an access network device according to the embodiments of the present disclosure may become an internal interface of the Open RAN, and flow and information interaction between these internal interfaces may be implemented by using software or a program.

In some embodiments, the access network device may be composed of a Central Unit (CU) and a Distributed Unit (DU), where the CU may also be referred to as a control unit (control unit), and the structure of the CU-DU may be used to split the protocol layers of the access network device, where functions of part of the protocol layers are centrally controlled by the CU, and functions of the rest of all the protocol layers are distributed in the DU, and the DU is centrally controlled by the CU, but is not limited thereto.

In some embodiments, the core network device may be a device, including one or more network elements, or may be a plurality of devices or a device group, including all or part of one or more network elements. The network element may be virtual or physical. The core network comprises, for example, at least one of an evolved packet core (Evolved Packet Core, EPC), a 5G core network (5G Core Network,5GCN), a next generation core (Next Generation Core, NGC).

It may be understood that, the communication system described in the embodiments of the present disclosure is for more clearly describing the technical solutions of the embodiments of the present disclosure, and is not limited to the technical solutions provided in the embodiments of the present disclosure, and those skilled in the art can know that, with the evolution of the system architecture and the appearance of new service scenarios, the technical solutions provided in the embodiments of the present disclosure are applicable to similar technical problems.

The embodiments of the present disclosure described below may be applied to the communication system 100 shown in fig. 1A, or a part of the main body, but are not limited thereto. The respective bodies shown in fig. 1A are examples, and the communication system may include all or part of the bodies in fig. 1A, or may include other bodies than fig. 1A, and the number and form of the respective bodies may be arbitrary, and the respective bodies may be physical or virtual, and the connection relationship between the respective bodies is examples, and the respective bodies may not be connected or may be connected, and the connection may be arbitrary, direct connection or indirect connection, or wired connection or wireless connection.

The embodiments of the present disclosure may be applied to long term evolution (Long Term Evolution, LTE), LTE-Advanced (LTE-a), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, fourth generation mobile communication system (4th generation mobile communication system,4G)), fifth generation mobile communication system (5th generation mobile communication system,5G), 5G New air (New Radio, NR), future wireless access (Future Radio Access, FRA), new wireless access technology (New-Radio Access Technology, RAT), new wireless (New Radio, NR), new wireless access (New Radio access, NX), future generation wireless access (Future generation Radio access, FX), global System for Mobile communications (GSM (registered trademark)), CDMA2000, ultra mobile broadband (Ultra Mobile Broadband, UMB), IEEE 802.11 (registered trademark), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, ultra WideBand (Ultra-wide-width, UWB), bluetooth (Bl terminal tooth (registered trademark), mobile communication network (Public Land Mobile Network, device-D, device-M, device-D, device-Device (internet of things system, device-2, device-D (internet of things system), device (internet of things), device (2-D, device-V), device (system extension, device (internet of things), etc. In addition, a plurality of system combinations (e.g., LTE or a combination of LTE-a and 5G, etc.) may be applied.

In some embodiments, the present disclosure illustrates the delay incurred when the terminal 101 makes a TCI state switch.

In some embodiments, the terminal 101 may perform TCI state switching based on a MAC CE (Media Access Control Control Element, medium access control element).

In some embodiments, the first TCI state is known to include at least one of: receiving a first command within a first preset time period after the last wave beam report or measurement reference signal is sent in a second time period; in a second period of time, at least one L1-RSRP report for the first TCI state has been sent prior to the first command; during the TCI state switching, the TCI state is in a detectable state during a second period of time; during the TCI state switch, the SSB associated with the TCI state is in a detectable state for a second period of time; during a second period of time, the SNR of the TCI state is not less than the first value; the starting point of the second time period is the last transmission of the reference signal resource, and the end point is the moment of completing the TCI state switching;

the reference signal is a reference signal for performing L1-RSRP measurements for the first TCI state and the reference signal is a source reference signal for the first TCI state or the reference signal and the source reference signal for the first TCI state are QCL.

In some embodiments, if the first TCI state is known, after the terminal 101 receives the MAC CE activation instruction at slot n (slot n), the terminal 101 receives the first TCI state on the PDCCH of the serving cell where the TCI state switch occurs, and the time for the terminal 101 to receive the first TCI state is no later than: n+T _HARQ +3N _slot ^subframe,μ +TO _k *(T _first-SSB +T _SSB-proc )/NR slot length。

Wherein T is _HARQ Is the duration of the downlink data transmission and the reception of feedback. T (T) _first-SSB Is the duration of the first SSB transmission after the terminal 101 has decoded the MAC CE instruction. TSSB-proc=2 ms (milliseconds). TOk =1 when the first TCI state is not contained in the active state list of PDSCH, otherwise 0.3N _slot ^subframe,μ Is the length of time required to decode the first command.

In some embodiments, when the first TCI state is unknown, the terminal 101 receives the MAC-CE activation instruction included in the PDSCH at slot n, then the terminal 101 receives the first TCI state on the PDCCH of the serving cell where the TCI state switching occurs, and the time for the terminal 101 to receive the first TCI state is no later than:

n+T _HARQ +3N _slot ^subframe,μ +(T _L1-RSRP +TO _uk *(T _first-SSB +T _SSB-proc ))/NR slot length。

wherein T is _L1-RSRP Is the L1-RSRP measurement duration for beam refinement. T (T) _HARQ Is the duration of the downlink data transmission and the reception of feedback. T (T) _first-SSB Is the duration of the first SSB transmission after the terminal 101 has decoded the MAC CE instruction. TSSB-proc=2 ms (milliseconds). In QCL-type, CSI-RS based L1-RSRP measurement uses touk=1, while SSB based L1-RSRP measurement uses touk=0. Touk=1 in other QCL types. 3N _slot ^subframe,μ Is the length of time required to decode the first command.

For example, referring to fig. 1B, if the target TCI state is not known, the terminal 101 receives the MAC CE at slot n, after passing through T _HARQ 、3ms、T _L1-RSRP 、T _first-SSB 、T _SSB-proc And then switches to the first TCI state.

In some embodiments, the terminal 101 may perform TCI state switching based on RRC.

In some embodiments, if the first TCI state is known, after the terminal 101 receives the RRC activation command at slot n (slot n), the terminal 101 receives the first TCI state on the PDCCH of the serving cell where the TCI state handover occurs, and the time for the terminal 101 to receive the first TCI state is no later than: slot n+ (T) _{RRC_processing} +TOk*(T _first-SSB +T _SSB-proc ))/NR slot length

During handover, the UE does not need to transmit and receive uplink and downlink information.

T _{RRC_processing} Is RRC processing delay; t (T) _first-SSB The time to the first SSB transmission after the UE has processed the RRC message; TSSB-proc=2 ms (milliseconds). TOk =1 when the first TCI state is not contained in the active state list of PDSCH, otherwise 0.

In one placeIn some embodiments, if the first TCI state is unknown, after the terminal 101 receives the RRC activation command at slot n (slot n), the terminal 101 receives the first TCI state on the PDCCH of the serving cell where the TCI state switching occurs, and the time for the terminal 101 to receive the first TCI state is no later than: slot n+ (T) _{RRC_processing} +T _L1-RSRP +TOuk*(T _first-SSB +T _SSB-proc ))/NR slot length

T _{RRC_processing} Is RRC processing delay, T is performed during TCI state switching of QCL-TypeD type _first-SSB Is the time to first SSB transmission after L1-RSRP measurement; whereas Tfirst-SSB is the time for the UE to first SSB transmission after processing the RRC message in other QCL types.

For example, referring to fig. 1C, if the target TCI state is not known, the terminal 101 receives the MAC CE at slot n, after passing through T _{RRC_processing} 、T _L1-RSRP 、T _first-SSB 、T _SSB-proc And then switches to the first TCI state.

Fig. 2 is an interactive schematic diagram of a communication method shown in accordance with an embodiment of the present disclosure. As shown in fig. 2, an embodiment of the present disclosure relates to a communication method, the method including:

in step S2101, the terminal 101 transmits a third instruction.

In some embodiments, the network device 102 receives the third instruction. Alternatively, it is also understood that the network device 102 receives the third instruction sent by the terminal 101. In some embodiments, terminal 101 sends a third instruction to network device 102.

In some embodiments, the third instruction is to indicate whether the terminal 101 supports enhanced TCI state switching. In some embodiments, a third instruction is used to indicate whether the terminal 101 has the capability to switch TCI states based on non-periods.

In some embodiments, the third instruction is for instructing the terminal 101 to support switching to the first TCI state based on the aperiodic reference signal. Optionally, the third instruction is for instructing the terminal 101 to support switching based on the aperiodic reference signal when switching to the first TCI state. Optionally, the third instruction is configured to instruct the terminal 101 to support TCI state switching based on the aperiodic reference signal. Optionally, the third instruction is used to instruct the terminal 101 to support switching to the first TCI state using the aperiodic reference signal. Optionally, the third instruction is for instructing the terminal 101 to support switching from the second TCI state to the first TCI state based on the aperiodic reference signal. Optionally, the third instruction is configured to instruct the terminal 101 to support TCI state switching based on the aperiodic reference signal. Optionally, the third instruction is used to instruct the terminal 101 to support enhanced TCI state switching. Optionally, the third instruction is used to instruct the terminal 101 to support fast TCI state switching.

Alternatively, the TCI STATE may also be represented by TCI-STATE, and embodiments of the disclosure are not limited.

In some embodiments, the Aperiodic reference signal is an A-TRS (Aperiodic CSI-RS/TRS). The CSI-RS (Channel State Information-Reference Signal) or TRS (Tracking Refernece Signal, tracking Reference Signal) is a Reference Signal.

In some embodiments, the name of the first TCI state is not limited. Which is for example the target TCI state, the TCI state to be switched, etc.

In some embodiments, the name of the second TCI state is not limited. Such as an used TCI state, an activated TCI state, etc.

In some embodiments, the second TCI state is earlier than the first TCI state. It is also understood that the second TCI state used by the terminal 101 is earlier than the first TCI state used. Alternatively, it is also understood that the terminal 101 uses the second TCI state earlier than the first TCI state.

In some embodiments, the name of the third instruction is not limited. Which is for example third signaling, third information, etc.

In step S2102, the network device 102 acquires a third instruction.

In some embodiments, the network device 102 receives the third instruction. Alternatively, it may be understood that the network device 102 receives the third instruction sent by the terminal 101.

In some embodiments, the network device 102 may obtain the third instruction by other means. For example, the network device 102 obtains a third instruction specified by the protocol; alternatively, the network device 102 obtains the third instruction from a higher layer. Alternatively, the network device 102 processes to obtain the third instruction.

Step S2101 is an optional step since the network device 102 may obtain the third instruction in a variety of ways.

In some embodiments, the network device 102 may determine whether the terminal 101 supports the third instruction for indicating whether the terminal 101 supports enhanced TCI-STATE handover by other means, e.g., the network device 102 may determine whether the terminal 101 is supported by context information, random access request, initially selected beam. For example, in the case where some TCI-STATE (index=pre 30) is used as pre-handover, the network device 102 knows that the terminal 101 supports. For another example, the network device 101 receives a random access request sent by the terminal 101, and the random access preamble carried by the random access request is a preset value, so that the network device 102 knows that the terminal 101 supports the random access request.

Step S2102 is an optional step since the network device 102 may otherwise determine whether the terminal 101 supports a third instruction for indicating whether the terminal 101 supports enhanced TCI-STATE handover.

In some embodiments, the terminal 101 is supported by default, i.e., the functionality is default or default. The network device 102 can determine that the terminal 101 is supported without S2101 and S2102, and step S2101 and step S2102 are optional.

In step S2103, the network device 102 transmits a fourth instruction.

In some embodiments, the network device 102 receives the fourth instruction. Alternatively, it is also understood that the network device 102 receives the fourth instruction sent by the terminal 101. In some embodiments, network device 102 sends a fourth instruction to terminal 101.

In some embodiments, the fourth instruction is to configure the aperiodic reference signal. Optionally, the fourth instruction is for configuring resources of the aperiodic reference signal. Optionally, the fourth instruction is for configuring a resource location of the aperiodic reference signal. Optionally, the fourth instruction is for configuring a location of the received aperiodic reference signal.

In some embodiments, the fourth instruction includes a resource location of the aperiodic reference signal. Optionally, the fourth instruction includes frequency domain resources and time domain resources of the aperiodic reference signal. Optionally, the fourth instruction includes a frequency domain location and a time domain location of the aperiodic reference signal.

In some embodiments, the aperiodic reference signal of the fourth instruction configuration is used for TCI state switching.

In step S2104, the terminal 101 acquires a fourth instruction.

In some embodiments, the terminal 101 obtaining the fourth instruction refers to receiving the fourth instruction. In some embodiments, the terminal 101 obtaining the fourth instruction refers to the terminal 101 receiving the fourth instruction sent by the network device 102. In some embodiments, the terminal 101 may further obtain the fourth instruction through other manners, which is not limited in the embodiments of the present application. In some embodiments, correspondingly, the network device 102 sends the fourth instruction. Alternatively, it may be understood that the network device 102 sends the fourth instruction to the terminal 101.

In the embodiment of the present disclosure, step S2103 is taken as an example for explanation. In some embodiments, the network device 102 sends the second instruction. In some embodiments, the terminal 101 obtains the second instruction. In some embodiments, terminal 101 receives the second instruction. Alternatively, it is also understood that the terminal 101 receives the second instruction sent by the network device 102. In some embodiments, the network device 102 sends the second instruction to the terminal 101.

In some embodiments, the terminal 101 may obtain the second instruction by other means. For example, the terminal 101 acquires a second instruction specified by the protocol. Alternatively, the terminal 101 acquires the second instruction from a higher layer. Alternatively, the terminal 101 performs processing to obtain the second instruction.

In some embodiments, the second instruction is for instructing the terminal 101 to turn on a first function that instructs to perform TCI state switching based on the aperiodic reference signal. In some embodiments, the second instruction is for instructing the terminal 101 to turn on a function of performing TCI state switching based on the aperiodic reference signal. In some embodiments, the second instruction is to instruct the terminal 101 to initiate performing a TCI state switch based on the aperiodic reference signal. In some embodiments, the second instruction is for instructing the terminal 101 to turn on a function of switching to the first TCI state based on the aperiodic reference signal.

In some embodiments, the terminal 101 may determine whether to turn on the first function by other means. For example, the terminal 101 may determine whether to turn on the first function by whether to perform TCI state switching, random access response, beam used for data transmission. For example, if the terminal 101 starts to perform TCI state switching, it is determined to turn on the first function. For another example, the terminal receives the random access response and starts the first function.

In some embodiments, the name of the second instruction is not limited. For example, second signaling, second information, second indication signaling, second indication information, etc.

It should be noted that, in the embodiment of the present disclosure, the sending order of the second instruction and the fourth instruction is not limited, that is, the execution order between the step XX and the step XX is not limited. For example, the second instruction and the fourth instruction may be issued simultaneously, or the second instruction may be issued before the fourth instruction, or the fourth instruction may be issued before the second instruction. In some embodiments, the second instruction and the fourth instruction may be one instruction, that is, the instruction may instruct the terminal 101 to start the first function, where the first function instructs to perform TCI state switching based on the aperiodic reference signal, and may configure the aperiodic reference signal, which is not limited in the embodiments of the disclosure.

In step S2105, the network device 102 transmits a first instruction.

In some embodiments, the network device 102 receives the first instruction. Alternatively, it is also understood that the network device 102 receives the first instruction sent by the terminal 101.

In some embodiments, the network device 102 sends the first instruction to the terminal 101.

In some embodiments, the first instruction is to instruct the terminal 101 to switch to the first TCI state based on the aperiodic reference signal. Optionally, the first instruction is configured to instruct the terminal 101 to switch to the first TCI state using the aperiodic reference signal. Optionally, the first instruction is configured to instruct the terminal 101 to perform TCI state switching based on the aperiodic reference signal. Optionally, the first instruction is configured to instruct the terminal 101 to perform TCI state switching using an aperiodic reference signal.

In step S2106, the terminal 101 acquires a first instruction.

In some embodiments, the terminal 101 obtaining the first instruction refers to receiving the first instruction. In some embodiments, the terminal 101 obtaining the first instruction refers to the terminal 101 receiving the first instruction sent by the network device 102. In some embodiments, the terminal 101 may further obtain the first instruction through other manners, which is not limited in the embodiments of the present application. In some embodiments, the network device 102 correspondingly transmits the first instruction. Alternatively, it may be understood that the network device 102 sends the first instruction to the terminal 101.

In some embodiments, the terminal 101 receives the first instruction. Alternatively, it is also understood that the terminal 101 receives the first instruction sent by the network device 102.

In step S2107, the terminal 101 performs TCI state switching based on the aperiodic reference signal for a first period.

In some embodiments, the terminal 101 obtains a first instruction, and performs TCI state switching based on the first instruction, so as to complete the switching of the TCI state in a first period of time. That is, the terminal 101 switches from the second TCI state to the first TCI state during the first period.

In some embodiments, the first period of time is used to instruct the terminal 101 as to the length of time required to switch the TCI state.

In some embodiments, the name of the first time period is not limited. Such as a time window, a time length, a time duration, etc.

Next, how to determine the first period will be described.

In some embodiments, the first time period is determined based on at least one of a first time period, a second time period, a third time period, or a fourth time period. The first time length indicates the sum of the time length of downlink data transmission and feedback receiving and the time length of decoding the first instruction; alternatively, the first time length indicates a time length for decoding the first instruction.

Optionally, if the first instruction is a MAC CE, the first time length indicates a duration of downlink data transmission and feedback reception. For example, the first duration is T in FIG. 1B _HARQ And 3N _slot ^subframe,μ A kind of electronic device.

Optionally, if the first command is RRC, the first time length indicates a time length for decoding the first command. For example, the first duration is T in FIG. 1C _{RRC_processing} 。

Wherein the second time period indicates a time period for which the aperiodic reference signal is received for the first time. Optionally, the second duration is T in FIG. 1B or FIG. 1C _first-ATRS 。

Wherein the third duration indicates a layer 1 reference signal received power L1-RSRP measurement duration for beam refinement. Optionally, the third duration is T in FIG. 1B or FIG. 1C _L1-RSRP 。

In some embodiments, the fourth time period indicates a fixed time period. Optionally, the fixed duration is 2ms, 3ms, or other values, which are not limited by the embodiments of the present disclosure.

In some embodiments, the first TCI state is known, and the first time period is determined based on the first time period, the second time period, and the fourth time period.

Optionally, after the terminal 101 receives the MAC CE activation instruction at slot n (slot n), the terminal 101 may receive the first TCI state on the PDCCH of the serving cell where the TCI state switching occurs, and the first period is: n+T _HARQ +3N _slot ^subframe,μ +(T _first-ATRS +T _SSB-proc ) NR slot length. Wherein T is _HARQ +3N _slot ^subframe,μ Is a first duration. T (T) _first-ATRS Is a second duration. T (T) _SSB-proc For a fourth duration. NR slot length is the NR slot length.

Optionally, after receiving the RRC activation command by the terminal 101 in slot n (slot n), the terminal 101 may receive the first TCI state on the PDSCH of the serving cell where the TCI state switching occurs, and the first period is: n+ (T) _{RRC_processing} +T _first-ATRS +T _SSB-proc ) NR slot length. Wherein T is _{RRC_processing} Is a first duration. T (T) _first-ATRS Is a second duration. T (T) _SSB-proc For a fourth duration. NR slot length is the NR slot length.

In some embodiments, the first time period is a time period starting at a time when the first command is received and ending at a time when the first, second, and fourth durations have elapsed.

In some embodiments, the first TCI state is unknown, and the first time period is determined based on the first time period, the second time period, the third time period, and the fourth time period.

Optionally, after the terminal 101 receives the MAC CE activation instruction at slot n (slot n), the terminal 101 may receive the first TCI state on the PDCCH of the serving cell where the TCI state switching occurs, and the first period is: n+T _HARQ +3N _slot ^subframe,μ +(T _first-ATRS +T _L1-RSRP +T _SSB-proc ) NR slot length. Wherein T is _HARQ +3N _slot ^subframe,μ Is a first duration. T (T) _first-ATRS Is a second duration. T (T) _L1-RSRP Is a third duration. T (T) _SSB-proc For a fourth duration. NR slot length is the NR slot length.

Optionally, after receiving the RRC activation command by the terminal 101 in slot n (slot n), the terminal 101 may receive the first TCI state on the PDSCH of the serving cell where the TCI state switching occurs, and the first period is: n+ (T) _{RRC_processing} +T _first-ATRS +T _L1-RSRP +T _SSB-proc ) NR slot length. Wherein T is _{RRC_processing} Is a first duration. T (T) _first-ATRS Is a second duration. T (T) _L1-RSRP Is a third duration. T (T) _SSB-proc For a fourth duration. NR slot length is the NR slot length.

In some embodiments, the first time period is a time period starting at a time when the first command is received and ending at a time after the first time period, the second time period, the third time period, and the fourth time period have elapsed.

In some embodiments, the first TCI state and the aperiodic reference signal are QCL. In some embodiments, the QCL includes QCL-Type-A, QCL-Type-B, QCL-Type-C or QCL-Type-D. For example, the QCL is QCL-Type-D.

Alternatively, the first TCI state and the aperiodic reference signal are QCL, and it is further understood that the first TCI state and the aperiodic reference signal have the same QCL source reference signal, or the QCL source reference signal of the first TCI state is the aperiodic reference signal, or the beam receiving the first TCI state is the same as the beam receiving the aperiodic reference signal. Alternatively, the spatial relationship of the beams used for receiving the first TCI state is the same as the spatial relationship of the beams used for receiving the aperiodic reference signal.

In some embodiments, the first TCI state and the aperiodic reference signal are QCL, the first TCI state being known, the first time period being determined based on the first time period, the second time period, and the fourth time period.

In some embodiments, the first TCI state and the aperiodic reference signal are QCL, the first TCI state being unknown, the first time period being determined based on the first time period, the second time period, the third time period, and the fourth time period.

In some embodiments, the first TCI state is unknown, and the first time period is determined based on the first time period, the second time period, and the third time period.

Optionally, after the terminal 101 receives the MAC CE activation instruction at slot n (slot n), the terminal 101 may receive the first TCI state on the PDCCH of the serving cell where the TCI state switching occurs, and the first period is: n+T _HARQ +3N _slot ^subframe,μ +T _L1-RSRP NR slot length. Wherein T is _HARQ +3N _slot ^subframe,μ Is a first duration. T (T) _L1-RSRP Is a third duration. NR slot length is the NR slot length.

Optionally, after receiving the RRC activation command by the terminal 101 in slot n (slot n), the terminal 101 may receive the first TCI state on the PDSCH of the serving cell where the TCI state switching occurs, and the first period is: n+ (T) _{RRC_processing} +T _L1-RSRP ) NR slot length. Wherein T is _{RRC_processing} Is a first duration. T (T) _L1-RSRP Is a third duration. NR slot length is the NR slot length.

In some embodiments, the first time period is a time period starting at a time when the first command is received and ending at a time when the first, second, and third time periods have elapsed.

In some embodiments, the first TCI state and the aperiodic reference signal are QCL-TypeD, and the reference signal used by the terminal 101 for L1-RSRP is the source reference signal of the first TCI state. Alternatively, in the case where the first TCI state and the aperiodic reference signal are QCL-type and the reference signal for the L1-RSRP is the source reference signal of the first TCI state, and the first TCI state is unknown, the first period of time is determined based on the first duration, the second duration, and the third duration.

In some embodiments, the first TCI state and the aperiodic reference signal are QCL-TypeD, and the reference signal for the L1-RSRP by the terminal 101 and the source reference signal for the first TCI state are QCL-TypeD. Alternatively, if the first TCI state and the aperiodic reference signal are QCL-type d and the reference signal for the L1-RSRP and the source reference signal for the first TCI state are QCL-type d and the first TCI state is unknown, the first period of time is determined based on the first duration, the second duration, and the third duration.

In step S2108, the terminal 101 receives a PDCCH in a first TCI state at a first time domain resource after the end of a first time period.

In some embodiments, the time domain resource refers to slot (time slot), symbol, or other resource, and embodiments of the present disclosure are not limited.

In some embodiments, the names of information and the like are not limited to the names described in the embodiments, and terms such as "information", "message", "signal", "signaling", "report", "configuration", "instruction", "command", "channel", "parameter", "field", "symbol", "codebook", "code word", "code point", "bit", "data", "program", "chip", and the like may be replaced with each other.

In some embodiments, terms such as "uplink," "physical uplink," and the like may be interchanged, terms such as "downlink," "physical downlink," and the like may be interchanged, terms such as "side," "side link," "side communication," "side link," "direct link," and the like may be interchanged.

In some embodiments, "acquire," "obtain," "receive," "transmit," "bi-directional transmit," "send and/or receive" may be used interchangeably and may be interpreted as receiving from other principals, acquiring from protocols, acquiring from higher layers, processing itself, autonomous implementation, etc.

In some embodiments, terms such as "send," "transmit," "report," "send," "transmit," "bi-directional," "send and/or receive," and the like may be used interchangeably.

In some embodiments, terms such as "time of day," "point of time," "time location," and the like may be interchanged, and terms such as "duration," "period," "time window," "time," and the like may be interchanged.

In some embodiments, terms such as "specific (specific)", "predetermined", "preset", "set", "indicated", "certain", "arbitrary", "first", and the like may be replaced with each other, and "specific a", "predetermined a", "preset a", "set a", "indicated a", "certain a", "arbitrary a", "first a" may be interpreted as a predetermined in a protocol or the like, may be interpreted as a obtained by setting, configuring, or indicating, or the like, may be interpreted as specific a, certain a, arbitrary a, or first a, or the like, but are not limited thereto.

The communication method according to the embodiment of the present disclosure may include at least one of step S2101 to step S2108. For example, step S2101 may be implemented as an independent embodiment, step S2102 may be implemented as an independent embodiment, step S2103 may be implemented as an independent embodiment, step S2104 may be implemented as an independent embodiment, step S2105 may be implemented as an independent embodiment, step S2106 may be implemented as an independent embodiment, step S2107 may be implemented as an independent embodiment, step S2108 may be implemented as an independent embodiment, step S2101 and step S2102 may be implemented as an independent embodiment, step S2103 and step S2104 may be implemented as an independent embodiment, step S2105 and step S2106 may be implemented as an independent embodiment, step S2107 and step S2108 may be implemented as an independent embodiment, step S2105, step S2106, step S2107 and step S2108 may be implemented as an independent embodiment, step S2101, step S2102, step S2103, step S2104 may be implemented as an independent embodiment, step S1, step S2104 may be implemented as an independent embodiment, step S2106 may be implemented as an independent embodiment, step S2106, step S1 may be implemented as an independent embodiment, step S2106 may be implemented as an independent embodiment.

In some embodiments, steps S2102, S2104, S2105 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

In some embodiments, steps S2103, S2104, S2105, S2106, S2107, S2108 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

In some embodiments, steps S2101, S2102, S2105, S2106, S2107, S2108 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

In some embodiments, steps S2101, S2102, S2103, S2104, S2107, S2108 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

In some embodiments, steps S2101, S2102, S2103, S2104, S2105, S2106 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

In some embodiments, reference may be made to alternative implementations described before or after the description corresponding to fig. 2.

Fig. 3A is a flow chart of a communication method according to an embodiment of the present disclosure, which is applied to the terminal 101. As shown in fig. 3A, an embodiment of the present disclosure relates to a communication method, the method including:

in step S3101, the terminal 101 transmits a third instruction.

Alternative implementations of step S3101 may refer to alternative implementations of step S2101 of fig. 2, and other relevant parts of the embodiment related to fig. 2, which are not described herein.

In step S3102, the terminal 101 acquires a fourth instruction.

Alternative implementations of step S3102 may refer to alternative implementations of step S2104 of fig. 2, and other relevant parts of the embodiment related to fig. 2, which are not described herein.

In step S3103, the terminal 101 acquires a first instruction.

Alternative implementations of step S3103 may refer to alternative implementations of step S2106 of fig. 2, and other relevant parts of the embodiment related to fig. 2, which are not described herein.

In step S3104, the terminal 101 performs TCI state switching based on the aperiodic reference signal in the first period.

Alternative implementations of step S3104 may refer to alternative implementations of step S2107 of fig. 2, and other relevant parts of the embodiment related to fig. 2, which are not described herein.

In step S3105, the terminal 101 receives the PDCCH in the first TCI state at the first time domain resource after the end of the first time period.

Alternative implementations of step S3105 may refer to alternative implementations of step S2108 of fig. 2, and other relevant parts of the embodiment related to fig. 2, which are not described herein.

The communication method according to the embodiment of the present disclosure may include at least one of step S3101 to step S3105. For example, step S3101 may be implemented as a separate embodiment, step S3102 may be implemented as a separate embodiment, step S3103 may be implemented as a separate embodiment, step S3104 may be implemented as a separate embodiment, and step S3105 may be implemented as a separate embodiment, but is not limited thereto.

In some embodiments, step S3101, step S3102, step S3103, step S3104 are optional, step S3101, step S3102, step S3104, step S3105 are optional, step S3101, step S3103, step S3104, step S3105 are optional, step S3102, step S3103, step S3104, step S3105 are optional, and one or more of these steps may be omitted or replaced in different embodiments. But is not limited thereto.

Fig. 3B is a flow chart of a communication method according to an embodiment of the present disclosure, which is applied to the terminal 101. As shown in fig. 3B, an embodiment of the present disclosure relates to a communication method, the method including:

in step S3201, the terminal 101 receives the first instruction.

Alternative implementations of step S3201 may refer to step S2106 of fig. 2, step S3103 of fig. 3A, and other relevant parts in the embodiments related to fig. 2 and 3A, which are not described herein.

In step S3202, the terminal 101 performs TCI state switching based on the aperiodic reference signal for a first period of time.

Alternative implementations of step S3202 may refer to alternative implementations of step S2107 of fig. 2, alternative implementations of step S3104 of fig. 3A, and other relevant parts in the embodiments related to fig. 2 and 3A, which are not described herein.

Fig. 4A is a flow chart of a communication method according to an embodiment of the present disclosure, which is applied to the network device 102, and as shown in fig. 4A, the embodiment of the present disclosure relates to the communication method, where the method includes:

in step S4101, the network device 102 obtains a third instruction.

Alternative implementations of step S4101 may refer to step S2102 in fig. 2 and other relevant parts in the embodiment related to fig. 2, which are not described herein.

In some embodiments, the network device 102 receives the first signaling sent by the terminal 101, but is not limited thereto, and may also receive the first signaling sent by other bodies.

In step S4102, the network device 102 sends a fourth instruction.

Alternative implementations of step S4102 may refer to step S2103 of fig. 2 and other relevant parts in the embodiment related to fig. 2, which are not described here again.

In step S4103, the network device 102 sends a first instruction.

Alternative implementations of step S4103 may refer to step S2105 of fig. 2 and other relevant parts in the embodiment related to fig. 2, which are not described herein.

The communication method according to the embodiment of the present disclosure may include at least one of step S4101 to step S4103. For example, step S4101 may be implemented as a separate embodiment, step S4102 may be implemented as a separate embodiment, and step S4103 may be implemented as a separate embodiment, but is not limited thereto.

In some embodiments, step S4101 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

In some embodiments, step S4102 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

In some embodiments, step S4103 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

Fig. 4B is a flow chart of a communication method according to an embodiment of the present disclosure, which is applied to the network device 102, and as shown in fig. 4B, the embodiment of the present disclosure relates to the communication method, where the method includes:

in step S4201, the network device 102 transmits the first instruction.

Alternative implementations of step S4201 may refer to step S2106 of fig. 2 and step S4101 of fig. 4A, and other relevant parts in the embodiments related to fig. 2 and 4, which are not described herein.

Fig. 5 is a flow chart illustrating a communication method according to an embodiment of the present disclosure, and as shown in fig. 5, the embodiment of the present disclosure relates to a communication method, where the method includes:

step S5101: the network device 102 sends a first instruction.

Step S5102: the terminal 101 receives the first instruction.

Step S5103: the terminal 101 performs TCI state switching based on the aperiodic reference signal during the first period.

Alternative implementations of step S5101 may refer to step S2105 of fig. 2, step S3103 of fig. 4A, and other relevant parts in the embodiments related to fig. 2 and 4, which are not described herein.

Alternative implementations of step S5102 may refer to step S2106 of fig. 2, step S3103 of fig. 3A, and other relevant parts in the embodiments related to fig. 2 and 3A, which are not described herein.

Alternative implementations of step S5103 may refer to alternative implementations of step S2107 of fig. 2, alternative implementations of step S3104 of fig. 3A, alternative implementations of step S3202 of fig. 3B, and other relevant parts of the embodiments related to fig. 2, 3A, and 3B, which are not described in detail herein.

In some embodiments, the method may include the method of the embodiments of the communication system side, the terminal 101 side, the network device 102 side, and so on, which are not described herein.

Fig. 6 is a flow chart illustrating a communication method according to an embodiment of the present disclosure, and as shown in fig. 6, the embodiment of the present disclosure relates to a communication method, which includes:

in step S6101, the terminal 101 transmits a support fast TCI state switching capability.

In some embodiments, the network device 102 issues an A-TRS resource configuration via an RRC message, the A-TRS being QCL-D with the target TCI state.

In some embodiments, the network device 102 sends a message triggering the UE to perform a TCI state switch based on the a-TRS.

In some embodiments, the network device 102 sends a message triggering the UE to perform TCI state switching.

In some embodiments, the network device 102 may perform TCI state switching based on the a-TRS by implicitly instructing the UE.

In some embodiments, if the target TCI state is known:

the UE needs to complete TCI state switching within the time of THARQ+3Nslotsubframe, mu+Tirst-ATRS+2ms, and receives PDCCH of the target state TCI in the first time slot after the time slot of slot+THARQ+3Nslotsubframe, mu+Tirst-ATRS+2ms;

in some embodiments, the network device 102 may schedule the UE the first slot after slot n+tharq+3Nslotsubframe, μ+tfirst-atrs+2 ms.

In some embodiments, if the target TCI state is unknown, the UE needs to complete the TCI state switch within a time of tharq+3 nslotsbframe, μ+tl1-rsrp+tfirst-atrs+2ms, and receives the PDCCH of the target state TCI in the first slot after slot+tharq+3 nslotsbframe, μ+tl1-rsrp+tfirst-atrs+2 ms;

in some embodiments, the network device 102 may schedule the UE the first slot after slot n+tharq+3Nslotsubframe, μ+tl1-rsrp+tfirst-atrs+2 ms.

In some embodiments, the network issues an A-TRS resource configuration via an RRC message, the A-TRS is QCL-TypeD with the target TCI state, and the RS of the UE performing beam management (L1-RSRP) is the source RS of the target TCI state, or the source of the UE performing beam management with the target TCI state is QCL-TypeD;

In some embodiments, the network device 102 issues a message triggering the UE to perform TCI state switching based on the a-TRS;

in some embodiments, the network device 102 issues a message triggering the UE to perform TCI state switching;

in some embodiments, the network device 102 may implicitly instruct the UE to perform TCI state switching based on the a-TRS;

in some embodiments, if the target TCI state is unknown: the UE needs to complete TCI state switching in THARQ+3Nslotsubframe, mu+Tl1-RSRP time, and receives PDCCH of a target state TCI in the first time slot after slot n+THARQ+3Nslotsubframe, mu+TfirstATRS;

in some embodiments, the network may schedule the UE the first time slot after slot n+tharq+3nslotsubframe, μ+tl 1-RSRP.

In the embodiments of the present disclosure, some or all of the steps and alternative implementations thereof may be arbitrarily combined with some or all of the steps in other embodiments, and may also be arbitrarily combined with alternative implementations of other embodiments.

The embodiments of the present disclosure also propose an apparatus for implementing any of the above methods, for example, an apparatus is proposed, where the apparatus includes a unit or a module for implementing each step performed by the terminal 101 in any of the above methods. For another example, another apparatus is also provided that includes means or modules for implementing the steps performed by the network device 102 (e.g., access network device, core network function node, core network device, etc.) in any of the methods above.

It should be understood that the division of each unit or module in the above apparatus is merely a division of a logic function, and may be fully or partially integrated into one physical entity or may be physically separated when actually implemented. Furthermore, units or modules in the apparatus may be implemented in the form of processor-invoked software: the device comprises, for example, a processor, the processor being connected to a memory, the memory having instructions stored therein, the processor invoking the instructions stored in the memory to perform any of the methods or to perform the functions of the units or modules of the device, wherein the processor is, for example, a general purpose processor, such as a central processing unit (Central Processing Unit, CPU) or microprocessor, and the memory is internal to the device or external to the device. Alternatively, the units or modules in the apparatus may be implemented in the form of hardware circuits, and part or all of the functions of the units or modules may be implemented by designing hardware circuits, which may be understood as one or more processors; for example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC), and the functions of some or all of the units or modules are implemented by designing the logic relationships of elements in the circuit; for another example, in another implementation, the above hardware circuit may be implemented by a programmable logic device (programmable logic device, PLD), for example, a field programmable gate array (Field Programmable Gate Array, FPGA), which may include a large number of logic gates, and the connection relationship between the logic gates is configured by a configuration file, so as to implement the functions of some or all of the above units or modules. All units or modules of the above device may be realized in the form of invoking software by a processor, or in the form of hardware circuits, or in part in the form of invoking software by a processor, and in the rest in the form of hardware circuits.

In the disclosed embodiments, the processor is a circuit with signal processing capabilities, and in one implementation, the processor may be a circuit with instruction reading and running capabilities, such as a central processing unit (Central Processing Unit, CPU), microprocessor, graphics processor (graphics processing unit, GPU) (which may be understood as a microprocessor), or digital signal processor (digital signal processor, DSP), etc.; in another implementation, the processor may implement a function through a logical relationship of hardware circuits that are fixed or reconfigurable, e.g., a hardware circuit implemented as an application-specific integrated circuit (ASIC) or a programmable logic device (programmable logic device, PLD), such as an FPGA. In the reconfigurable hardware circuit, the processor loads the configuration document, and the process of implementing the configuration of the hardware circuit may be understood as a process of loading instructions by the processor to implement the functions of some or all of the above units or modules. Furthermore, hardware circuits designed for artificial intelligence may be used, which may be understood as ASICs, such as neural network processing units (Neural Network Processing Unit, NPU), tensor processing units (Tensor Processing Unit, TPU), deep learning processing units (Deep learning Processing Unit, DPU), etc.

Fig. 7A is a schematic structural diagram of a terminal 101 according to an embodiment of the present disclosure. As shown in fig. 7A, the terminal 1017100 may include: at least one of a transceiver module 7101, a processing module 7102, and the like. In some embodiments, the transceiver module 7101 is configured to receive a first instruction that is configured to instruct the terminal 101 to switch to the first TCI state based on the aperiodic reference signal. Optionally, the transceiver module is configured to perform at least one of the communication steps (e.g. step S2101 but not limited thereto) of transmission and/or reception performed by the terminal 101101 in any one of the above methods, which is not described herein. Optionally, the processing module is configured to perform at least one of the other steps performed by the terminal 101101 in any one of the above methods, which is not described herein.

Optionally, the processing module 7101 is configured to perform at least one of the communication steps such as the processing performed by the terminal 101 in any of the above methods, which is not described herein.

Fig. 7B is a schematic structural diagram of a network device according to an embodiment of the present disclosure. As shown in fig. 7B, the network device 7200 may include: at least one of the transceiver module 7201, the processing module 7202, and the like. In some embodiments, transceiver module 7201 is configured to transmit a first instruction for instructing terminal 101 to switch to the first TCI state based on the aperiodic reference signal. Optionally, the transceiver module is configured to perform at least one of the communication steps (e.g. step S2103, step S2105, but not limited thereto) of the sending and/or receiving performed by the network device 102 in any of the above methods, which is not described herein.

Optionally, the processing module 7201 is configured to perform at least one of the communication steps such as the processing performed by the network device in any of the above methods, which is not described herein.

In some embodiments, the transceiver module may include a transmitting module and/or a receiving module, which may be separate or integrated. Alternatively, the transceiver module may be interchangeable with a transceiver.

In some embodiments, the processing module may be a single module or may include multiple sub-modules. Optionally, the plurality of sub-modules perform all or part of the steps required to be performed by the processing module, respectively. Alternatively, the processing module may be interchanged with the processor.

Fig. 8A is a schematic structural diagram of a communication device 8100 according to an embodiment of the present disclosure. The communication device 8100 may be a network device (e.g., an access network device, a core network device, etc.), may be a terminal 101 (e.g., a user device, etc.), may be a chip, a chip system, a processor, etc. that supports the network device to implement any of the above methods, and may also be a chip, a chip system, a processor, etc. that supports the terminal 101 to implement any of the above methods. The communication device 8100 may be used to implement the method described in the above method embodiments, and reference may be made in particular to the description of the above method embodiments.

As shown in fig. 8A, communication device 8100 includes one or more processors 8101. The processor 8101 may be a general-purpose processor or a special-purpose processor, etc., and may be, for example, a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processor may be used to control communication devices (e.g., base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process data for the programs. The communication device 8100 is configured to perform any of the above methods.

In some embodiments, communication device 8100 also includes one or more memory 8102 for storing instructions. Alternatively, all or part of memory 8102 may be external to communication device 8100.

In some embodiments, communication device 8100 also includes one or more transceivers 8103. When the communication device 8100 includes one or more transceivers 8103, the transceivers 8103 perform at least one of the communication steps (e.g., but not limited to, step S2101, step S2102, step S2103, step S2104) of transmission and/or reception in the above-described method.

In some embodiments, the transceiver may include a receiver and/or a transmitter, which may be separate or integrated. Alternatively, terms such as transceiver, transceiver unit, transceiver circuit, etc. may be replaced with each other, terms such as transmitter, transmitter circuit, etc. may be replaced with each other, and terms such as receiver, receiving unit, receiver, receiving circuit, etc. may be replaced with each other.

In some embodiments, communication device 8100 may include one or more interface circuits 8104. Optionally, an interface circuit 8104 is coupled to the memory 8102, the interface circuit 8104 being operable to receive signals from the memory 8102 or other device, and being operable to transmit signals to the memory 8102 or other device. For example, the interface circuit 8104 may read instructions stored in the memory 8102 and send the instructions to the processor 8101.

The communication device 8100 in the above embodiment description may be a network device or a terminal, but the scope of the communication device 8100 described in the present disclosure is not limited thereto, and the structure of the communication device 8100 may not be limited by fig. 8A. The communication device may be a stand-alone device or may be part of a larger device. For example, the communication device may be: 1) A stand-alone integrated circuit IC, or chip, or a system-on-a-chip or subsystem; (2) A set of one or more ICs, optionally including storage means for storing data, programs; (3) an ASIC, such as a Modem (Modem); (4) modules that may be embedded within other devices; (5) A receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handset, a mobile unit, a vehicle-mounted device, a network device, a cloud device, an artificial intelligent device, and the like; (6) others, and so on.

Fig. 8B is a schematic structural diagram of a chip 8200 according to an embodiment of the disclosure. For the case where the communication device 8100 may be a chip or a chip system, reference may be made to a schematic structural diagram of the chip 8200 shown in fig. 8B, but is not limited thereto.

The chip 8200 includes one or more processors 8201, the chip 8200 being configured to perform any of the above methods.

In some embodiments, the chip 8200 further comprises one or more interface circuits 8202. Optionally, an interface circuit 8202 is coupled to the memory 8203, the interface circuit 8202 may be configured to receive signals from the memory 8203 or other device, and the interface circuit 8202 may be configured to transmit signals to the memory 8203 or other device. For example, the interface circuit 8202 may read instructions stored in the memory 8203 and send the instructions to the processor 8201.

In some embodiments, the interface circuit 8202 performs at least one of the sending and/or receiving communication steps of the methods described above, and the processor 8201 performs at least one of the other steps.

In some embodiments, the terms interface circuit, interface, transceiver pin, transceiver, etc. may be interchanged.

In some embodiments, chip 8200 further includes one or more memories 8203 for storing instructions. Alternatively, all or part of the memory 8203 may be external to the chip 8200.

The present disclosure also proposes a storage medium having stored thereon instructions that, when executed on a communication device 8100, cause the communication device 8100 to perform any of the above methods. Optionally, the storage medium is an electronic storage medium. Alternatively, the storage medium described above is a computer-readable storage medium, but is not limited thereto, and it may be a storage medium readable by other devices. Alternatively, the above-described storage medium may be a non-transitory (non-transitory) storage medium, but is not limited thereto, and it may also be a transitory storage medium.

The present disclosure also proposes a program product which, when executed by a communication device 8100, causes the communication device 8100 to perform any of the above methods. Optionally, the above-described program product is a computer program product.

The present disclosure also proposes a computer program which, when run on a computer, causes the computer to perform any of the above methods.

Claims

1. A method of communication, the method comprising:

receiving a first instruction, wherein the first instruction is used for indicating the terminal to switch to a first TCI state based on an aperiodic reference signal;

in a first period of time, a TCI state switch is performed based on the aperiodic reference signal.

2. The method according to claim 1, wherein the method further comprises:

and receiving a second instruction, wherein the second instruction is used for instructing the terminal to start a first function, and the first function instructs to execute TCI state switching based on the aperiodic reference signal.

3. The method according to claim 1 or 2, characterized in that the method further comprises:

and sending a third instruction, wherein the third instruction is used for indicating the terminal to support switching to the first TCI state based on the aperiodic reference signal.

4. A method according to any one of claims 1 to 3, wherein the method further comprises:

a fourth instruction is received, the fourth instruction being for configuring the aperiodic reference signal.

5. The method of claim 4, wherein the fourth instruction comprises a resource location of the aperiodic reference signal.

6. The method of any of claims 1-5, wherein the first time period is determined based on at least one of a first time period, a second time period, a third time period, or a fourth time period, the first time period indicating a sum of a time period for downlink data transmission, receiving feedback, and a time period for decoding the first instruction; or, the first time length indicates a time length for decoding the first instruction, the second time length indicates a time length for receiving the aperiodic reference signal for the first time, the third time length indicates a layer 1 reference signal received power L1-RSRP measurement time length for beam refinement, and the fourth time length indicates a fixed time length.

7. The method of claim 6, wherein the first TCI state is known, the first time period is determined based on the first time period, the second time period, and the fourth time period.

8. The method of claim 6, wherein the first TCI state is unknown, the first time period being determined based on the first time period, the second time period, the third time period, and the fourth time period.

9. The method of claim 7 or 8, wherein the first TCI state and the aperiodic reference signal are QCL.

10. The method of claim 6, wherein the first TCI state is unknown, the first time period being determined based on the first time period, the second time period, and the third time period.

11. The method according to claim 13 or 14, characterized in that the first TCI state and the aperiodic reference signal are QCL-type and the reference signal for L1-RSRP measurement is the source reference signal of the first TCI state;

or alternatively, the first and second heat exchangers may be,

the first TCI state and the aperiodic reference signal are QCL-TypeD, and the reference signal for L1-RSRP measurement and the source reference signal for the first TCI state are QCL-TypeD.

12. The method according to any one of claims 7 to 11, wherein the first TCI state is known to include at least one of:

receiving the first command within a second preset time period after the last wave beam report or measurement reference signal is sent in a second time period;

in a second period of time, at least one L1-RSRP report for the first TCI state has been sent prior to the first command;

during the TCI state switching, the TCI state is in a detectable state during a second period of time;

during the TCI state switch, the SSB associated with the TCI state is in a detectable state for a second period of time;

during a second period of time, the SNR of the TCI State is not less than the first value;

the starting point of the second time period is the last transmission of the reference signal resource, and the end point is the moment of completing the TCI state switching;

the reference signal is a reference signal for performing L1-RSRP measurements for a first TCI state and the reference signal is a source reference signal for the first TCI state or the reference signal and the source reference signal for the first TCI state are QCL.

13. The method according to any one of claims 1 to 12, further comprising:

The first time domain resource after the end of the first period receives the PDCCH of the first TCI state.

14. A method of communication, the method comprising:

and sending a first instruction, wherein the first instruction is used for indicating the terminal to switch to a first TCI state based on the aperiodic reference signal.

15. The method of claim 14, wherein the method further comprises:

determining that the terminal switches to the first TCI state based on the aperiodic reference signal.

16. The method according to claim 14 or 15, characterized in that the method further comprises:

and sending a fourth instruction, wherein the fourth instruction is used for configuring the aperiodic reference signal.

17. The method of claim 16, wherein the fourth instruction comprises a resource location of the aperiodic reference signal.

18. The method of any of claims 14 to 17, wherein the first time period is determined based on at least one of a first time period, a second time period, a third time period, or a fourth time period, the first time period indicating a sum of a time period for downlink data transmission, receiving feedback, and a time period for decoding the first instruction; or, the first time length indicates a time length for decoding the first instruction, the second time length indicates a time length for receiving the aperiodic reference signal for the first time, the third time length indicates a layer 1 reference signal received power L1-RSRP measurement time length for beam refinement, and the fourth time length indicates a fixed time length.

19. The method of claim 18, wherein the first TCI state is known, the first time period is determined based on the first time period, the second time period, and the fourth time period.

20. The method of claim 18, wherein the first TCI state is unknown, the first time period being determined based on the first time period, the second time period, the third time period, and the fourth time period.

21. The method of claim 19 or 20, wherein the first TCI state and the aperiodic reference signal are QCL.

22. The method of claim 18, wherein the first TCI state is unknown, the first time period being determined based on the first time period, the second time period, and the third time period.

23. The method of claim 22, wherein the first TCI state and the aperiodic reference signal are QCL-type d and the reference signal used for L1-RSRP measurement is a source reference signal of the first TCI state;

or alternatively, the first and second heat exchangers may be,

24. The method of any one of claims 19 to 23, wherein the first TCI state is known to include at least one of:

25. The method according to any one of claims 14 to 24, further comprising:

And transmitting the PDCCH in the first TCI state by the first time domain resource after the first time period is finished.

26. A method of communication, the method comprising:

the network equipment sends a first instruction, wherein the first instruction is used for indicating the terminal to switch to a first TCI state based on an aperiodic reference signal;

the terminal receives the first instruction;

the terminal performs TCI state switching based on the aperiodic reference signal during a first period of time.

27. A terminal, the terminal comprising:

the receiving and transmitting module is used for receiving a first instruction, and the first instruction is used for indicating the terminal to switch to a first TCI state based on an aperiodic reference signal;

and the processing module is used for executing TCI state switching based on the aperiodic reference signal in a first time period.

28. A network device, the network device comprising:

and the receiving and transmitting module is used for transmitting a first instruction, and the first instruction is used for indicating the terminal to switch to a first TCI state based on the aperiodic reference signal.

29. A terminal, the terminal comprising:

one or more processors;

wherein the terminal is configured to perform the communication method of any one of claims 1 to 13.

30. A network device, the terminal comprising:

one or more processors;

wherein the terminal is adapted to perform the communication method of any of claims 14 to 25.

31. A communication system comprising a terminal configured to implement the communication method of any of claims 1 to 13 and a network device configured to implement the communication method of any of claims 14 to 25.

32. A storage medium storing instructions that, when executed on a communication device, cause the communication device to perform the communication method of any one of claims 1 to 13 or to perform the communication method of any one of claims 14 to 25.