Communication method, terminal, network device, and storage medium

Abstract

The present disclosure relates to a communication method, a terminal, a network device, and a storage medium. The communication method comprises: receiving a first instruction, the first instruction being used for instructing a terminal to switch to a first TCI state on the basis of an aperiodic reference signal; and executing TCI state switching on the basis of the aperiodic reference signal within a first time period. The present application provides a method for switching to a first TCI state on the basis of an aperiodic reference signal. The duration required for TCI state switching based on the aperiodic reference signal is short, thereby guaranteeing that the duration required for the terminal to execute TCI state switching is shortened, the TCI state switching delay is reduced, and the communication reliability is ensured.

Description

Communication method, terminal, network device and storage medium Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular to a communication method, a terminal, a network device, and a storage medium. Background Art

[0002] With the rapid development of mobile communication technology, network devices can instruct terminals to switch TCI (Transmission Configuration Indicator) states through commands. Specifically, the network device sends a command to the terminal. After receiving the command from the network device, the terminal will parse the command and switch the TCI state.

[0003] Summary of the Invention

[0004] The present disclosure solves the problem of extended time for TCI state switching of the terminal, reduces the TCI state switching delay, and ensures communication reliability.

[0005] The embodiments of the present disclosure provide a communication method, a terminal, a network device, and a storage medium.

[0006] According to a first aspect of an embodiment of the present disclosure, a communication method is proposed, the method comprising: receiving a first instruction, the first instruction being used to instruct a terminal to switch to a first TCI state based on a non-periodic reference signal; and performing TCI state switching based on the non-periodic reference signal within a first time period.

[0007] According to a second aspect of an embodiment of the present disclosure, a communication method is proposed, the method comprising: sending a first instruction, where the first instruction is used to instruct a terminal to switch to a first TCI state based on a non-periodic reference signal.

[0008] According to a third aspect of an embodiment of the present disclosure, a communication method is proposed, which includes: a network device sends a first instruction, where the first instruction is used to instruct a terminal to switch to a first TCI state based on a non-periodic reference signal; the terminal receives the first instruction, and the terminal performs TCI state switching based on the non-periodic reference signal within a first time period.

[0009] According to the fourth aspect of an embodiment of the present disclosure, a terminal is proposed, including: a transceiver module for receiving a first instruction, the first instruction being used to instruct the terminal to switch to a first TCI state based on a non-periodic reference signal; and a processing module for performing TCI state switching based on the non-periodic reference signal within a first time period.

[0010] According to a fifth aspect of an embodiment of the present disclosure, a network device is proposed, including: a transceiver module, configured to send a first instruction, where the first instruction is configured to instruct a terminal to switch to a first TCI state based on a non-periodic reference signal.

[0011] According to a sixth aspect of an embodiment of the present disclosure, a terminal is proposed, comprising: one or more processors; wherein the terminal is configured to execute any one of the methods in the first aspect.

[0012] According to a seventh aspect of an embodiment of the present disclosure, a network device is proposed, comprising: one or more processors; wherein the terminal is configured to execute any one of the methods in the second aspect.

[0013] According to an eighth aspect of an embodiment of the present disclosure, a communication system is proposed, including: a terminal and a network device, wherein the terminal is configured to implement the communication method of the first aspect, and the network device is configured to implement the communication method of the second aspect.

[0014] According to a ninth aspect of an embodiment of the present disclosure, a storage medium is proposed, wherein the storage medium stores instructions. When the instructions are executed on a communication device, the communication device executes a method as described in any one of the first aspect or the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the embodiments of the present disclosure and constitute a part of the present disclosure. The illustrative embodiments of the embodiments of the present disclosure and their descriptions are used to explain the embodiments of the present disclosure and do not constitute an improper limitation on the embodiments of the present disclosure. In the drawings:

[0016] FIG1A is a schematic diagram illustrating an architecture of a communication system according to an embodiment of the present disclosure;

[0017] FIG1B is a schematic diagram of a duration structure provided by an embodiment of the present disclosure;

[0018] FIG1C is a schematic diagram of a duration structure provided by an embodiment of the present disclosure;

[0019] FIG2 is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure;

[0020] FIG3A is a flow chart illustrating a communication method according to an embodiment of the present disclosure;

[0021] FIG3B is a flow chart illustrating a communication method according to an embodiment of the present disclosure;

[0022] FIG4A is a flow chart illustrating a communication method according to an embodiment of the present disclosure;

[0023] FIG4B is a flow chart illustrating a communication method according to an embodiment of the present disclosure;

[0024] FIG5 is a flow chart of a communication method according to an embodiment of the present disclosure;

[0025] FIG6 is a flow chart showing a communication method according to an embodiment of the present disclosure;

[0026] FIG7A is a schematic structural diagram of a terminal proposed in an embodiment of the present disclosure;

[0027] FIG7B is a schematic diagram of the structure of a network device proposed in an embodiment of the present disclosure;

[0028] FIG8A is a schematic structural diagram of a communication device proposed in an embodiment of the present disclosure;

[0029] FIG8B is a schematic structural diagram of a communication device proposed in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0030] The present disclosure provides a communication method, a terminal, and a storage medium.

[0031] In a first aspect, an embodiment of the present disclosure provides a communication method, the method comprising: receiving a first instruction, the first instruction being used to instruct a terminal to switch to a first TCI state based on a non-periodic reference signal; and performing TCI state switching based on the non-periodic reference signal within a first time period.

[0032] In the above embodiment, a method for switching to a first TCI state based on a non-periodic reference signal is provided. Since the time required for the TCI state switching using the non-periodic reference signal is short, the time required for the terminal to switch the TCI state is shortened, the TCI state switching delay is reduced, and communication reliability is ensured.

[0033] In combination with some embodiments of the first aspect, in some embodiments, a second instruction is received, where the second instruction is used to instruct the terminal to enable a first function, where the first function instructs to perform TCI state switching based on a non-periodic reference signal.

[0034] In the above embodiment, the instruction is used to instruct the terminal to enable the function of performing TCI state switching based on the non-periodic reference signal, so that the terminal can perform TCI state switching based on the non-periodic reference signal. Since the time required for the TCI state switching of the non-periodic reference signal is short, the time required for the terminal to perform TCI state switching is shortened, the TCI state switching delay is reduced, and communication reliability is guaranteed.

[0035] In combination with some embodiments of the first aspect, in some embodiments, the method further includes: sending a third instruction, where the third instruction is used to instruct the terminal to support switching to the first TCI state based on the non-periodic reference signal.

[0036] In the above embodiment, the terminal sends its own ability to support switching to the first TCI state based on the non-periodic reference signal through instructions, so that the network device can control the terminal to switch the TCI state based on the non-periodic reference signal, thereby shortening the time required for the terminal to switch the TCI state, reducing the TCI state switching delay, and ensuring communication reliability.

[0037] In combination with some embodiments of the first aspect, in some embodiments, the method further includes: receiving a fourth instruction, where the fourth instruction is used to configure the non-periodic reference signal.

[0038] In the above embodiment, the network device configures a non-periodic reference signal for the terminal so that the terminal can receive the non-periodic reference signal, ensures the accuracy of the terminal detecting the non-periodic reference signal, and further ensures that the terminal performs TCI state switching based on the non-periodic reference signal, ensures that the time required for the terminal to perform TCI state switching is shortened, reduces the TCI state switching delay, and ensures communication reliability.

[0039] In combination with some embodiments of the first aspect, in some embodiments, the fourth instruction includes a resource location of the non-periodic reference signal.

[0040] In the above embodiment, after the terminal determines the resource location of the non-periodic reference signal, the terminal is able to receive the non-periodic reference signal, thereby ensuring the accuracy of the terminal in detecting the non-periodic reference signal, and then ensuring that the terminal performs TCI state switching based on the non-periodic reference signal, thereby shortening the time required for the terminal to perform TCI state switching, reducing the TCI state switching delay, and ensuring communication reliability.

[0041] In combination with some embodiments of the first aspect, in some embodiments, the first time period is determined based on at least one of a first duration, a second duration, a third duration or a fourth duration, and the first duration indicates the sum of the duration of downlink data transmission, the duration of receiving feedback, and the duration of decoding the first instruction; or, the first duration indicates the duration of decoding the first instruction, the second duration indicates the duration of the first reception of the non-periodic reference signal, the third duration indicates the measurement duration of the layer 1 reference signal received power L1-RSRP used for beam refinement, and the fourth duration indicates a fixed duration.

[0042] In the above embodiment, the terminal uses multiple time lengths to determine the first time period, ensuring that the determined first time period comprehensively considers the influence of various time lengths, ensuring the accuracy of the determined first time period, and thereby improving the accuracy of the terminal performing TCI state switching within the first time period. In addition, the terminal performs TCI state switching based on the non-periodic reference signal within the first time period, ensuring that the time required for the terminal to perform TCI state switching is shortened, reducing the TCI state switching delay, and ensuring communication reliability.

[0043] In combination with some embodiments of the first aspect, the first TCI state is known, and the first time period is determined based on the first duration, the second duration, and the fourth duration.

[0044] In the above embodiment, when the first TCI state is known, it is determined that the duration of the first time period needs to be determined to ensure the accuracy of the determined first time period, thereby improving the accuracy of the terminal's TCI state switching within the first time period. In addition, the terminal performs TCI state switching based on the non-periodic reference signal within the first time period, thereby shortening the time required for the terminal to perform TCI state switching, reducing the TCI state switching delay, and ensuring communication reliability.

[0045] In combination with some embodiments of the first aspect, in some embodiments, the first time period is a time period starting from the moment the first command is received and ending at the moment after the first time length, the second time length, and the fourth time length have passed.

[0046] In the above embodiment, after determining the multiple time durations included in the first time period, the end point of the first time period can be determined, thereby ensuring the accuracy of the determined first time period, thereby improving the accuracy of the terminal performing TCI state switching within the first time period. In addition, the terminal performs TCI state switching based on the non-periodic reference signal within the first time period, thereby shortening the time required for the terminal to perform TCI state switching, reducing the TCI state switching delay, and ensuring communication reliability.

[0047] 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 duration, the second duration, the third duration, and the fourth duration.

[0048] In the above embodiment, when the first TCI state is unknown, it is determined that the duration of the first time period needs to be determined to ensure the accuracy of the determined first time period, thereby improving the accuracy of the terminal's TCI state switching within the first time period. In addition, the terminal performs TCI state switching based on the non-periodic reference signal within the first time period, thereby shortening the time required for the terminal to perform TCI state switching, reducing the TCI state switching delay, and ensuring communication reliability.

[0049] In combination with some embodiments of the first aspect, in some embodiments, the first time period is a time period starting from the moment the first command is received and ending at the moment after the first time length, the second time length, the third time length, and the fourth time length have passed.

[0050] In the above embodiment, after determining the multiple time durations included in the first time period, the end point of the first time period can be determined, thereby ensuring the accuracy of the determined first time period, thereby improving the accuracy of the terminal performing TCI state switching within the first time period. In addition, the terminal performs TCI state switching based on the non-periodic reference signal within the first time period, thereby shortening the time required for the terminal to perform TCI state switching, reducing the TCI state switching delay, and ensuring communication reliability.

[0051] In combination with some embodiments of the first aspect, in some embodiments, the first TCI state and the non-periodic reference signal are QCL.

[0052] 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 duration, the second duration, and the third duration.

[0053] In the above embodiment, when the first TCI state is unknown, it is determined that the duration of the first time period needs to be determined to ensure the accuracy of the determined first time period, thereby improving the accuracy of the terminal's TCI state switching within the first time period. In addition, the terminal performs TCI state switching based on the non-periodic reference signal within the first time period, thereby shortening the time required for the terminal to perform TCI state switching, reducing the TCI state switching delay, and ensuring communication reliability.

[0054] In combination with some embodiments of the first aspect, in some embodiments, the first time period is a time period starting from the moment the first command is received and ending at the moment after the first time length, the second time length, and the third time length have passed.

[0055] In the above embodiment, after determining the multiple time durations included in the first time period, the end point of the first time period can be determined, thereby ensuring the accuracy of the determined first time period, thereby improving the accuracy of the terminal performing TCI state switching within the first time period. In addition, the terminal performs TCI state switching based on the non-periodic reference signal within the first time period, thereby shortening the time required for the terminal to perform TCI state switching, reducing the TCI state switching delay, and ensuring communication reliability.

[0056] In combination with some embodiments of the first aspect, in some embodiments, the first TCI state and the non-periodic reference signal are QCL-TypeD (Quasi Co-Location-TypeD), and the reference signal used for L1-RSRP (L1-Reference Signal Received Power) measurement is the source reference signal of the first TCI state; or, the first TCI state and the non-periodic reference signal are QCL-TypeD, and the reference signal used for L1-RSRP (Reference Signal Received Power) measurement and the source reference signal of the first TCI state are QCL-TypeD.

[0057] 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 multiple time lengths are found to determine the first time period, ensuring the accuracy of the determined first time period, thereby improving the accuracy of the terminal performing TCI state switching within the first time period. In addition, the terminal performs TCI state switching based on the aperiodic reference signal within the first time period, ensuring that the time required for the terminal to perform TCI state switching is shortened, reducing the TCI state switching delay, and ensuring communication reliability.

[0058] In combination with some embodiments of the first aspect, in some embodiments, the first TCI state is known to include at least one of the following: within the second time period, a first command is received within a second preset time length after the last beam report or measurement reference signal is sent; within the second time period, at least one L1-RSRP report for the first TCI state has been sent before the first command; within the second time period, during the TCI state switching, the TCI state is in a detectable state; within the second time period, during the TCI state switching, the SSB (PSS / SSS PBCH Block) associated with the TCI state is in a detectable state; within the second time period, the SNR (Signal 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 when the TCI state switching is completed; the reference signal is a reference signal for performing L1-RSRP measurement in the first TCI state, and the reference signal is the source reference signal of the first TCI state, or the reference signal and the source reference signal of the first TCI state are QCL.

[0059] In the above embodiment, whether the TCI status is known is determined through multiple situations, thereby ensuring the accuracy of determining the TCI status, thereby ensuring the accuracy of determining the first time period, and thereby improving the accuracy of the terminal communicating in the first time period.

[0060] In combination with some embodiments of the first aspect, in some embodiments, the method further includes: receiving a PDCCH (Physical Downlink Control Channel) in a first TCI state in a first time domain resource after the end of the first time period.

[0061] In the above embodiment, after the first time period ends, the terminal switches to the first TCI state. At this time, the terminal can receive the PDCCH, thereby ensuring the reliability of the terminal's communication.

[0062] In a second aspect, an embodiment of the present disclosure provides a communication method, the method comprising: sending a first instruction, the first instruction being used to instruct a terminal to switch to a first TCI state based on a non-periodic reference signal.

[0063] In combination with some embodiments of the first aspect, in some embodiments, the method further includes: determining that the terminal switches to the first TCI state based on the non-periodic reference signal.

[0064] In combination with some embodiments of the first aspect, in some embodiments, the method further includes: sending a fourth instruction, where the fourth instruction is used to configure the non-periodic reference signal.

[0065] In combination with some embodiments of the first aspect, in some embodiments, the fourth instruction includes a resource location of the non-periodic reference signal.

[0066] In combination with some embodiments of the first aspect, in some embodiments, the first time period is determined based on at least one of a first duration, a second duration, a third duration or a fourth duration, and the first duration indicates the sum of the duration of downlink data transmission, the duration of receiving feedback, and the duration of decoding the first instruction; or, the first duration indicates the duration of decoding the first instruction, the second duration indicates the duration of the first reception of the non-periodic reference signal, the third duration indicates the measurement duration of the layer 1 reference signal received power L1-RSRP used for beam refinement, and the fourth duration indicates a fixed duration.

[0067] 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 duration, the second duration, and the fourth duration.

[0068] 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 duration, the second duration, the third duration, and the fourth duration.

[0069] In combination with some embodiments of the first aspect, in some embodiments, the first TCI state and the non-periodic reference signal are QCL.

[0070] 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 duration, the second duration, and the third duration.

[0071] In combination with some embodiments of the first aspect, in some embodiments, the first time period is a time period starting from the moment the first command is received and ending at the moment after the first time length, the second time length, and the third time length have passed.

[0072] In combination with some embodiments of the first aspect, in some embodiments, the first TCI state and the non-periodic reference signal are QCL-TypeD, and the reference signal used for L1-RSRP measurement is the source reference signal of the first TCI state; or, the first TCI state and the non-periodic reference signal are QCL-TypeD, and the reference signal used for L1-RSRP measurement and the source reference signal of the first TCI state are QCL-TypeD.

[0073] In combination with some embodiments of the first aspect, in some embodiments, the first TCI state is known to include at least one of the following: within the second time period, a first command is received within a second preset time length after the last beam report or measurement reference signal is sent; within the second time period, at least one L1-RSRP report for the first TCI state has been sent before the first command; within the second time period, during the TCI state switching, the TCI state is in a detectable state; within the second time period, during the TCI state switching, the SSB associated with the TCI state is in a detectable state; within the second time period, 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 when the TCI state switching is completed; the reference signal is a reference signal for performing L1-RSRP measurement in the first TCI state, and the reference signal is the source reference signal of the first TCI state, or the reference signal and the source reference signal of the first TCI state are QCL.

[0074] In combination with some embodiments of the first aspect, in some embodiments, the method further includes: sending a PDCCH of the first TCI state in the first time domain resource after the end of the first time period.

[0075] In a third aspect, an embodiment of the present disclosure provides a communication method, comprising: a network device sends a first instruction, the first instruction being used to instruct a terminal to switch to a first TCI state based on a non-periodic reference signal; the terminal receives the first instruction; and the terminal performs TCI state switching based on the non-periodic reference signal within a first time period.

[0076] In a fourth aspect, an embodiment of the present disclosure provides a terminal, which includes at least one of a transceiver module and a processing module; wherein the terminal is used to execute optional implementation methods of the first and third aspects.

[0077] In a fifth aspect, an embodiment of the present disclosure provides a network device, wherein the access network device includes at least one of a transceiver module and a processing module; wherein the access network device is used to execute the optional implementation methods of the second and third aspects.

[0078] In a sixth aspect, an embodiment of the present disclosure provides a terminal, comprising: one or more processors; wherein the terminal is used to execute the method of any one of the first and third aspects.

[0079] In a seventh aspect, an embodiment of the present disclosure provides a network device, comprising: one or more processors; wherein the network device is used to execute the method of any one of the second and third aspects.

[0080] In an eighth aspect, an embodiment of the present disclosure provides a storage medium storing first information. When the first information is run on a communication device, the communication device executes a method as described in any one of the first, second and third aspects.

[0081] In a ninth aspect, an embodiment of the present disclosure proposes a program product. When the program product is executed by a communication device, the communication device executes any one of the methods in the first, second and third aspects.

[0082] In a tenth aspect, an embodiment of the present disclosure proposes a computer program, which, when executed on a communication device, enables the communication device to execute any one of the methods of the first, second and third aspects.

[0083] In an eleventh aspect, embodiments of the present disclosure provide a chip or a chip system, wherein the chip or chip system includes a processing circuit configured to execute any one of the methods of the first, second, and third aspects.

[0084] It is understandable that the above-mentioned terminals, storage media, program products, computer programs, chips or chip systems are all used to execute the methods proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding methods and will not be repeated here.

[0085] The present disclosure provides a communication method, a terminal, a network device, and a storage medium. In some embodiments, the terms "communication method" and "information processing method" and "indication method" are interchangeable; the terms "communication device" and "information processing device" and "indication device" are interchangeable; and the terms "information processing system" and "communication system" are interchangeable.

[0086] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0087] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0088] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0089] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when articles such as "a", "an", "the" in English are used in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0090] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0091] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0092] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "A in one case, B in another case," or "in response to one case A, in response to another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The above is also applicable when there are more branches such as A, B, and C.

[0093] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

[0094] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.

[0095] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0096] In some embodiments, terms such as "time / frequency" and "time / frequency domain" refer to the time domain and / or the frequency domain.

[0097] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0098] In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not less than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

[0099] In some embodiments, devices and equipment can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they can also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject", etc.

[0100] In some embodiments, "network" can be interpreted as devices included in the network, such as access network equipment, core network equipment, etc.

[0101] In some embodiments, "access network device (AN device)" may also be referred to as "radio access network device (RAN device)", "base station (BS)", "radio base station", "fixed station", and in some embodiments may also be understood as "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission and / or reception point (TRP)" "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)", etc.

[0102] In some embodiments, "terminal" or "terminal device" may be referred to as "user equipment (terminal)", "user terminal" "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc.

[0103] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0104] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0105] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0106] FIG1A is a schematic diagram illustrating the architecture of a communication system according to an embodiment of the present disclosure. As shown in FIG1A , the method provided in the embodiment of the present disclosure can 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 also include other devices, and the present disclosure does not limit the devices included in the communication system 100.

[0107] In some embodiments, the terminal 101 includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited thereto.

[0108] In some embodiments, the network device 102 may include at least one of an access network device and a core network device.

[0109] In some embodiments, the access network device is, for example, a node or device that accesses the terminal 101 to the wireless network. The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band 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, and at least one of an access node in a Wi-Fi system, but is not limited thereto.

[0110] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0111] In some embodiments, the access network device can be composed of a centralized unit (CU) and a distributed unit (DU), where the CU can also be called a control unit. The CU-DU structure can be used to split the protocol layer of the access network device, with the functions of some protocol layers centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.

[0112] In some embodiments, a core network device may be a device including one or more network elements, or may be multiple devices or device groups, each including all or part of the one or more network elements. The network element may be virtual or physical. The core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC).

[0113] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.

[0114] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1A , or a portion thereof, but are not limited thereto. The entities shown in FIG1A are illustrative only. The communication system may include all or part of the entities shown in FIG1A , or may include other entities other than those shown in FIG1A . The number and form of the entities may be arbitrary, and the entities may be physical or virtual. The connection relationships between the entities are illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0115] The embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X), systems utilizing other communication methods, and next-generation systems based on and extending these methods. Furthermore, a combination of multiple systems (e.g., a combination of LTE or LTE-A with 5G) may also be employed.

[0116] In some embodiments, the present disclosure describes the delay generated when the terminal 101 switches the TCI state.

[0117] In some embodiments, the terminal 101 may perform TCI state switching based on a MAC CE (Media Access Control Control Element).

[0118] In some embodiments, the first TCI state is known to include at least one of the following: within the second time period, a first command is received within a first preset time period after the last transmission of a beam report or a measurement reference signal; within the second time period, at least one L1-RSRP report for the first TCI state has been sent before the first command; within the second time period, during the TCI state switching, the TCI state is in a detectable state; within the second time period, during the TCI state switching, the SSB associated with the TCI state is in a detectable state; within the second time period, the SNR of the TCI state is not less than the first value; the second time period starts at the last transmission of the reference signal resource and ends at the moment when the TCI state switching is completed;

[0119] The reference signal is a reference signal for performing L1-RSRP measurement in the first TCI state, and the reference signal is a source reference signal in the first TCI state, or the reference signal and the source reference signal in the first TCI state are in QCL.

[0120] In some embodiments, if the first TCI state is known, after the terminal 101 receives the MAC CE activation instruction in slot n (time slot n), the terminal 101 will receive the first TCI state on the PDCCH of the serving cell where the TCI state switching occurs, and the time when the terminal 101 receives 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.

[0121] Among them, T HARQ It is the duration of downlink data transmission and receiving feedback. first-SSB The duration of the first SSB transmission after the terminal 101 decodes the MAC CE instruction. TSSB-proc = 2ms (milliseconds). When the first TCI state is not included in the PDSCH active state list, TOk = 1, otherwise it is 0. 3N slot subframe,μ is the time required to decode the first command.

[0122] In some embodiments, when the first TCI state is unknown, the terminal 101 receives the MAC-CE activation instruction contained in the PDSCH in slot n, and 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 when the terminal 101 receives 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.

[0123] Among them, T L1-RSRP is the L1-RSRP measurement duration used for beam refinement. HARQ It is the duration of downlink data transmission and receiving feedback. first-SSB The duration of the first SSB transmission after the terminal 101 decodes the MAC CE command. TSSB-proc = 2ms (milliseconds). In QCL-Type D, the L1-RSRP measurement based on CSI-RS uses TOuk = 1, while the L1-RSRP measurement based on SSB uses TOuk = 0. In other QCL types, TOuk = 1. 3N slot subframe,μ is the time required to decode the first command.

[0124] For example, referring to FIG1B, if the target TCI state is unknown, the terminal 101 receives the MAC CE at slot n, and after T HARQ , 3ms, T L1-RSRP 、T first-SSB 、T SSB-proc Then switch to the first TCI state.

[0125] In some embodiments, the terminal 101 may perform TCI state switching based on RRC.

[0126] In some embodiments, if the first TCI state is known, after the terminal 101 receives the RRC activation instruction in slot n (time 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 when the terminal 101 receives the first TCI state is no later than: slot n+(T RRC_processing +TOk*(T first-SSB +T SSB-proc )) / NR slot length

[0127] During the handover, the UE does not need to send or receive uplink or downlink information.

[0128] T RRC_processing is the RRC processing delay; T first-SSB The time from the UE processing the RRC message to the first SSB transmission; TSSB-proc = 2ms (milliseconds). When the first TCI state is not included in the PDSCH active state list, TOk = 1, otherwise it is 0.

[0129] In some embodiments, if the first TCI state is unknown, after the terminal 101 receives the RRC activation instruction in slot n (time 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 when the terminal 101 receives 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

[0130] T RRC_processing It is the RRC processing delay. When switching to the TCI state of QCL-TypeD type, T first-SSB It is the time from L1-RSRP measurement to the first SSB transmission; while in other QCL types, Tfirst-SSB is the time from UE processing RRC message to the first SSB transmission.

[0131] For example, referring to FIG1C , if the target TCI state is unknown, the terminal 101 receives a MAC CE at slot n and then RRC_processing 、T L1-RSRP 、T first-SSB 、T SSB-proc Then switch to the first TCI state.

[0132] FIG2 is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG2 , the embodiment of the present disclosure relates to a communication method, and the method includes:

[0133] Step S2101: Terminal 101 sends a third instruction.

[0134] In some embodiments, the network device 102 receives the third instruction. Alternatively, it can be understood that the network device 102 receives the third instruction sent by the terminal 101. In some embodiments, the terminal 101 sends the third instruction to the network device 102.

[0135] In some embodiments, the third instruction is used to indicate whether the terminal 101 supports enhanced TCI state switching. In some embodiments, the third instruction is used to indicate whether the terminal 101 has the capability of switching TCI states based on an aperiodic basis.

[0136] In some embodiments, the third instruction is used to instruct the terminal 101 to support switching to the first TCI state based on the aperiodic reference signal. Optionally, the third instruction is used to instruct the terminal 101 to support switching based on the aperiodic reference signal when switching to the first TCI state. Optionally, the third instruction is used 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 used to instruct 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 used 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.

[0137] Optionally, the TCI state may also be represented by TCI-STATE, which is not limited in the embodiment of the present disclosure.

[0138] In some embodiments, the aperiodic reference signal is an A-TRS (Aperiodic CSI-RS / TRS), wherein CSI-RS (Channel State Information-Reference Signal) or TRS (Tracking Reference Signal) are both reference signals.

[0139] In some embodiments, the name of the first TCI state is not limited, and can be, for example, a target TCI state, a TCI state to be switched, etc.

[0140] In some embodiments, the name of the second TCI state is not limited, and can be, for example, a used TCI state, an activated TCI state, etc.

[0141] In some embodiments, the second TCI state is earlier than the first TCI state. This can also be understood as the second TCI state used by terminal 101 being earlier than the first TCI state used. Alternatively, this can also be understood as the time when terminal 101 used the second TCI state being earlier than the time when it used the first TCI state.

[0142] In some embodiments, the name of the third instruction is not limited, and can be, for example, a third signaling, a third message, etc.

[0143] Step S2102: The network device 102 obtains a third instruction.

[0144] In some embodiments, the network device 102 receives the third instruction. Alternatively, it can be understood that the network device 102 receives the third instruction sent by the terminal 101.

[0145] In some embodiments, network device 102 may obtain the third instruction through other means. For example, network device 102 may obtain the third instruction specified by a protocol; or network device 102 may obtain the third instruction from a higher layer; or network device 102 may process the third instruction.

[0146] Since the network device 102 can obtain the third instruction in multiple ways, step S2101 is an optional step.

[0147] In some embodiments, the network device 102 can determine whether the terminal 101 supports the third instruction for indicating whether the terminal 101 supports enhanced TCI-STATE switching by other means. For example, the network device 102 can determine whether the terminal 101 supports it through context information, random access request, and initially selected beam. For example, if certain TCI-STATE (index = the first 30) is used as the pre-switching condition, the network device 102 knows that the terminal 101 supports it. For another example, if 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, the network device 102 knows that the terminal 101 supports it.

[0148] Since the network device 102 can determine whether the terminal 101 supports the third instruction for indicating whether the terminal 101 supports enhanced TCI-STATE switching in other ways, step S2102 is an optional step.

[0149] In some embodiments, the terminal 101 supports the function by default, that is, the function is default or default. The network device 102 can determine that the terminal 101 supports the function without S2101 and S2102, and steps S2101 and S2102 are optional.

[0150] Step S2103: The network device 102 sends a fourth instruction.

[0151] In some embodiments, the network device 102 receives the fourth instruction. Alternatively, it can be understood that the network device 102 receives the fourth instruction sent by the terminal 101. In some embodiments, the network device 102 sends the fourth instruction to the terminal 101.

[0152] In some embodiments, the fourth instruction is used to configure an aperiodic reference signal. Optionally, the fourth instruction is used to configure a resource of the aperiodic reference signal. Optionally, the fourth instruction is used to configure a resource location of the aperiodic reference signal. Optionally, the fourth instruction is used to configure a location of the received aperiodic reference signal.

[0153] In some embodiments, the fourth instruction includes a resource location of the aperiodic reference signal. Optionally, the fourth instruction includes a frequency domain resource and a time domain resource of the aperiodic reference signal. Optionally, the fourth instruction includes a frequency domain location and a time domain location of the aperiodic reference signal.

[0154] In some embodiments, the aperiodic reference signal configured by the fourth instruction is used for TCI state switching.

[0155] Step S2104: Terminal 101 obtains a fourth instruction.

[0156] In some embodiments, terminal 101 obtaining the fourth instruction refers to receiving the fourth instruction. In some embodiments, terminal 101 obtaining the fourth instruction refers to terminal 101 receiving the fourth instruction sent by network device 102. In some embodiments, terminal 101 may also obtain the fourth instruction through other means, which are not limited in this embodiment of the application. In some embodiments, correspondingly, network device 102 sends the fourth instruction. Alternatively, it can be understood that network device 102 sends the fourth instruction to terminal 101.

[0157] It should be noted that the embodiments of the present disclosure are described using step S2103 as an example. In some embodiments, network device 102 sends the second instruction. In some embodiments, terminal 101 obtains the second instruction. In some embodiments, terminal 101 receives the second instruction. Alternatively, it can be understood that terminal 101 receives the second instruction sent by network device 102. In some embodiments, network device 102 sends the second instruction to terminal 101.

[0158] In some embodiments, terminal 101 may obtain the second instruction through other means. For example, terminal 101 may obtain the second instruction specified by the protocol. Alternatively, terminal 101 may obtain the second instruction from a higher layer. Alternatively, terminal 101 may process the second instruction to obtain the second instruction.

[0159] In some embodiments, the second instruction is used to instruct terminal 101 to enable a first function, where the first function instructs terminal 101 to perform TCI state switching based on an aperiodic reference signal. In some embodiments, the second instruction is used to instruct terminal 101 to enable the function of performing TCI state switching based on an aperiodic reference signal. In some embodiments, the second instruction is used to instruct terminal 101 to initiate TCI state switching based on an aperiodic reference signal. In some embodiments, the second instruction is used to instruct terminal 101 to enable the function of switching to a first TCI state based on an aperiodic reference signal.

[0160] In some embodiments, terminal 101 may determine whether to enable the first function by other means. For example, terminal 101 may determine whether to enable the first function by determining whether a TCI state switch is performed, a random access response is received, or the beam used for data transmission. For example, if terminal 101 initiates a TCI state switch, it determines to enable the first function. For another example, if the terminal receives a random access response, it enables the first function.

[0161] In some embodiments, the name of the second instruction is not limited, and can be, for example, a second signaling, a second message, a second indication signaling, a second indication message, etc.

[0162] It should be noted that the order in which the second instruction and the fourth instruction are sent in the embodiment of the present disclosure is not limited, that is, the order of execution between step xx and step XX is not limited. For example, the second instruction and the fourth instruction can be sent at the same time, or the second instruction can be sent before the fourth instruction, or the fourth instruction can be sent before the second instruction. In some embodiments, the second instruction and the fourth instruction can be one instruction, that is, the instruction can instruct the terminal 101 to turn on the first function, the first function instructs the execution of TCI state switching based on the non-periodic reference signal, and can also configure the non-periodic reference signal. This embodiment of the present disclosure does not limit this.

[0163] Step S2105: The network device 102 sends a first instruction.

[0164] In some embodiments, the network device 102 receives the first instruction. Alternatively, it can be understood that the network device 102 receives the first instruction sent by the terminal 101.

[0165] In some embodiments, the network device 102 sends a first instruction to the terminal 101 .

[0166] In some embodiments, the first instruction is used to instruct terminal 101 to switch to a first TCI state based on an aperiodic reference signal. Optionally, the first instruction is used to instruct terminal 101 to switch to the first TCI state using an aperiodic reference signal. Optionally, the first instruction is used to instruct terminal 101 to switch to the TCI state based on an aperiodic reference signal. Optionally, the first instruction is used to instruct terminal 101 to switch to the TCI state using an aperiodic reference signal.

[0167] Step S2106: Terminal 101 obtains a first instruction.

[0168] In some embodiments, terminal 101 obtaining the first instruction refers to receiving the first instruction. In some embodiments, terminal 101 obtaining the first instruction refers to terminal 101 receiving the first instruction sent by network device 102. In some embodiments, terminal 101 may also obtain the first instruction through other means, which are not limited in the embodiments of the present application. In some embodiments, correspondingly, network device 102 sends the first instruction. Alternatively, it can be understood that network device 102 sends the first instruction to terminal 101.

[0169] In some embodiments, the terminal 101 receives the first instruction. Alternatively, it can be understood that the terminal 101 receives the first instruction sent by the network device 102.

[0170] Step S2107: The terminal 101 performs TCI state switching based on the non-periodic reference signal within the first time period.

[0171] In some embodiments, the terminal 101 obtains a first instruction, switches the TCI state based on the first instruction, and completes the TCI state switching within the first time period. That is, the terminal 101 switches from the second TCI state to the first TCI state within the first time period.

[0172] In some embodiments, the first time period is used to indicate the duration required for the terminal 101 to switch the TCI state.

[0173] In some embodiments, the name of the first time period is not limited, and can be, for example, a time window, a time length, a duration, etc.

[0174] Next, how to determine the first time period is described.

[0175] In some embodiments, the first time period is determined based on at least one of a first duration, a second duration, a third duration, or a fourth duration, wherein the first duration indicates the sum of the duration of downlink data transmission, the duration of receiving feedback, and the duration of decoding the first instruction; or the first duration indicates the duration of decoding the first instruction.

[0176] Optionally, if the first instruction is a MAC CE, the first duration indicates the duration of downlink data transmission and feedback reception. For example, the first duration is T in FIG1B above. HARQ With 3N slot subframe,μ.

[0177] Optionally, if the first instruction is RRC, the first duration indicates the duration of decoding the first instruction. For example, the first duration is T in FIG1C above. RRC_processing .

[0178] The second duration indicates the duration of the first reception of the non-periodic reference signal. Optionally, the second duration is T in FIG1B or FIG1C. first-ATRS .

[0179] The third duration indicates the measurement duration of the layer 1 reference signal received power L1-RSRP used for beam refinement. Optionally, the third duration is T in FIG1B or FIG1C above. L1-RSRP .

[0180] In some embodiments, the fourth duration indicates a fixed duration. Optionally, the fixed duration is 2ms, 3ms, or other values, which are not limited in the embodiments of the present disclosure.

[0181] In some embodiments, the first TCI state is known, and the first time period is determined based on the first duration, the second duration, and the fourth duration.

[0182] Optionally, after the terminal 101 receives the MAC CE activation instruction in slot n (time 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 first time period is: n+T HARQ +3N slot subframe,μ+(T first-ATRS +T SSB-proc ) / NR slot length. Among them, T HARQ +3N slot subframe,μ is the first duration. T first-ATRS Is the second duration. SSB-proc The fourth duration. NR slot length is the NR slot length.

[0183] Optionally, after the terminal 101 receives the RRC activation instruction in slot n (time slot n), the terminal 101 receives the first TCI state on the PDSCH of the serving cell where the TCI state switching occurs, and the first time period is: n+(T RRC_processing +T first-ATRS +T SSB-proc ) / NR slot length. Among them, T RRC_processing Is the first duration. first-ATRS Is the second duration. SSB-proc The fourth duration. NR slot length is the NR slot length.

[0184] In some embodiments, the first time period is a time period starting from the moment the first command is received and ending at the moment after the first time length, the second time length, and the fourth time length have passed.

[0185] In some embodiments, the first TCI state is unknown, and the first time period is determined based on the first duration, the second duration, the third duration, and the fourth duration.

[0186] Optionally, after the terminal 101 receives the MAC CE activation instruction in slot n (time 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 first time period is: n+T HARQ +3N slot subframe,μ+(T first-ATRS +T L1-RSRP +T SSB-proc ) / NR slot length. Among them, T HARQ +3N slot subframe,μ is the first duration. T first-ATRS Is the second duration. L1-RSRP It is the third duration. SSB-proc The fourth duration. NR slot length is the NR slot length.

[0187] Optionally, after the terminal 101 receives the RRC activation instruction in slot n (time slot n), the terminal 101 receives the first TCI state on the PDSCH of the serving cell where the TCI state switching occurs, and the first time period is: n+(T RRC_processing +T first-ATRS +T L1-RSRP +T SSB-proc ) / NR slot length. Among them, T RRC_processing Is the first duration. first-ATRS Is the second duration. L1-RSRP It is the third duration. SSB-proc The fourth duration. NR slot length is the NR slot length.

[0188] In some embodiments, the first time period is a time period starting from the moment the first command is received and ending at the moment after the first time length, the second time length, the third time length, and the fourth time length have passed.

[0189] In some embodiments, the first TCI state and the non-periodic reference signal are QCLs. In some embodiments, the QCL comprises QCL-Type-A, QCL-Type-B, QCL-Type-C, or QCL-Type-D. For example, the QCL is QCL-Type-D.

[0190] Optionally, the first TCI state and the aperiodic reference signal are QCL. This can also be understood as follows: 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 used to receive the first TCI state is the same as the beam used to receive the aperiodic reference signal. Alternatively, the spatial relationship between the beams used to receive the first TCI state and the beams used to receive the aperiodic reference signal is the same.

[0191] In some embodiments, the first TCI state and the non-periodic reference signal are QCL, the first TCI state is known, and the first time period is determined based on the first duration, the second duration, and the fourth duration.

[0192] In some embodiments, the first TCI state and the non-periodic reference signal are QCL, the first TCI state is unknown, and the first time period is determined based on the first duration, the second duration, the third duration, and the fourth duration.

[0193] In some embodiments, the first TCI state is unknown, and the first time period is determined based on the first duration, the second duration, and the third duration.

[0194] Optionally, after the terminal 101 receives the MAC CE activation instruction in slot n (time 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 first time period is: n+T HARQ +3N slot subframe,μ+T L1-RSRP / NR slot length. Where, T HARQ +3N slot subframe,μ is the first duration. T L1-RSRP The third duration. NR slot length is the NR slot length.

[0195] Optionally, after the terminal 101 receives the RRC activation instruction in slot n (time slot n), the terminal 101 receives the first TCI state on the PDSCH of the serving cell where the TCI state switching occurs, and the first time period is: n+(T RRC_processing +T L1-RSRP ) / NR slot length. Among them, T RRC_processing Is the first duration. L1-RSRP The third duration. NR slot length is the NR slot length.

[0196] In some embodiments, the first time period is a time period starting from the moment the first command is received and ending at the moment after the first time length, the second time length, and the third time length have passed.

[0197] In some embodiments, the first TCI state and the aperiodic reference signal are QCL-Type D, and the reference signal used by terminal 101 for L1-RSRP is the source reference signal of the first TCI state. Optionally, when the first TCI state and the aperiodic reference signal are QCL-Type D, and the reference signal used by terminal 101 for L1-RSRP is the source reference signal of the first TCI state, and the first TCI state is unknown, the first time period is determined based on the first duration, the second duration, and the third duration.

[0198] In some embodiments, the first TCI state and the aperiodic reference signal are of QCL-Type D, and the reference signal used by terminal 101 for L1-RSRP and the source reference signal of the first TCI state are of QCL-Type D. Optionally, if the first TCI state and the aperiodic reference signal are of QCL-Type D, and the reference signal used by terminal 101 for L1-RSRP and the source reference signal of the first TCI state are of QCL-Type D, and the first TCI state is unknown, the first time period is determined based on the first duration, the second duration, and the third duration.

[0199] Step S2108: The terminal 101 receives a PDCCH in the first TCI state in the first time domain resource after the end of the first time period.

[0200] In some embodiments, the time domain resource refers to a slot, a symbol or other resources, which is not limited in the embodiments of the present disclosure.

[0201] In some embodiments, the names of information, etc. are not limited to the names described in the embodiments, and terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codeword", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0202] In some embodiments, terms such as "uplink", "uplink", "physical uplink" can be interchangeable with each other, and terms such as "downlink", "downlink", "physical downlink" can be interchangeable with each other, and terms such as "side", "sidelink", "side communication", "sidelink communication", "direct connection", "direct link", "direct communication", "direct link communication" can be interchangeable with each other.

[0203] In some embodiments, "obtain", "get", "get", "receive", "transmit", "bidirectional transmission", "send and / or receive" can be interchangeable, and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining by self-processing, autonomous implementation, etc.

[0204] In some embodiments, terms such as "send", "transmit", "report", "download", "transmit", "bidirectional transmission", "send and / or receive" can be used interchangeably.

[0205] In some embodiments, terms such as "moment", "time point", "time", and "time position" can be replaced with each other, and terms such as "duration", "period", "time window", "window", and "time" can be replaced with each other.

[0206] In some embodiments, terms such as "certain", "preset", "preset", "setting", "indicated", "a certain", "any", and "first" can be interchangeable. "Specific A", "preset A", "preset A", "setting A", "indicated A", "a certain A", "any A", and "first A" can be interpreted as A pre-specified in a protocol, etc., or as A obtained through setting, configuration, or indication, etc., or as specific A, a certain A, any A, or first A, etc., but not limited to this.

[0207] The communication method involved in the embodiment of the present disclosure may include at least one of steps S2101 to S2108. For example, step S2101 can be implemented as an independent embodiment, step S2102 can be implemented as an independent embodiment, step S2103 can be implemented as an independent embodiment, step S2104 can be implemented as an independent embodiment, step S2105 can be implemented as an independent embodiment, step S2106 can be implemented as an independent embodiment, step S2107 can be implemented as an independent embodiment, and step S2108 can be implemented as an independent embodiment. Steps S2101 and S2102 can be implemented as independent embodiments, steps S2103 and S2104 can be implemented as independent embodiments, steps S2105 and S2106 can be implemented as independent embodiments, steps S2107 and S2108 can be implemented as independent embodiments, and steps S2105, S2106 and S2107 can be implemented as independent embodiments. 06. Step S2107 and step S2108 can be implemented as independent embodiments, step S2101, step S2102, step S2103, and step S2104 can be implemented as independent embodiments, step S2101, step S2102, step S2105, and step S2106 can be implemented as independent embodiments, step S2103, step S2104, step S2105, and step S2106 can be implemented as independent embodiments, step S2101, step S2102, step S2105, step S2106, step S2107, and step S2108 can be implemented as independent embodiments, step S2103, step S2104, step S2105, step S2106, step S2107, and step S2108 can be implemented as independent embodiments, but are not limited thereto.

[0208] In some embodiments, steps S2102, S2104, and S2105 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0209] In some embodiments, steps S2103, S2104, S2105, S2106, S2107, and S2108 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0210] In some embodiments, steps S2101, S2102, S2105, S2106, S2107, and S2108 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0211] In some embodiments, steps S2101, S2102, S2103, S2104, S2107, and S2108 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0212] In some embodiments, steps S2101, S2102, S2103, S2104, S2105, and S2106 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0213] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2 .

[0214] FIG3A is a flow chart of a communication method according to an embodiment of the present disclosure, which is applied to a terminal 101. As shown in FIG3A , the embodiment of the present disclosure relates to a communication method, which includes:

[0215] Step S3101: Terminal 101 sends a third instruction.

[0216] The optional implementation of step S3101 can refer to the optional implementation of step S2101 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0217] Step S3102: Terminal 101 obtains a fourth instruction.

[0218] The optional implementation of step S3102 can refer to the optional implementation of step S2104 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0219] Step S3103: Terminal 101 obtains a first instruction.

[0220] The optional implementation of step S3103 can refer to the optional implementation of step S2106 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0221] Step S3104: The terminal 101 performs TCI state switching based on the non-periodic reference signal within the first time period.

[0222] The optional implementation of step S3104 can refer to the optional implementation of step S2107 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0223] Step S3105: Terminal 101 receives a PDCCH in the first TCI state in the first time domain resource after the end of the first time period.

[0224] The optional implementation of step S3105 can refer to the optional implementation of step S2108 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0225] The communication method involved in the embodiments of the present disclosure may include at least one of steps S3101 to S3105. For example, step S3101 may be implemented as an independent embodiment, step S3102 may be implemented as an independent embodiment, step S3103 may be implemented as an independent embodiment, step S3104 may be implemented as an independent embodiment, and step S3105 may be implemented as an independent embodiment, but the present invention is not limited thereto.

[0226] In some embodiments, steps S3101, S3102, S3103, and S3104 are optional, steps S3101, S3102, S3104, and S3105 are optional, steps S3101, S3103, S3104, and S3105 are optional, and steps S3102, S3103, S3104, and S3105 are optional. In different embodiments, one or more of these steps may be omitted or replaced, but the present invention is not limited thereto.

[0227] FIG3B is a flow chart of a communication method according to an embodiment of the present disclosure, which is applied to terminal 101. As shown in FIG3B , the embodiment of the present disclosure relates to a communication method, which includes:

[0228] Step S3201: Terminal 101 receives a first instruction.

[0229] Optional implementations of step S3201 may refer to step S2106 of FIG. 2 , step S3103 of FIG. 3A , and other related parts of the embodiments involved in FIG. 2 and FIG. 3A , which will not be described in detail here.

[0230] Step S3202: The terminal 101 performs TCI state switching based on the non-periodic reference signal within the first time period.

[0231] The optional implementation of step S3202 can refer to the optional implementation of step S2107 in Figure 2, the optional implementation of step S3104 in Figure 3A, and other related parts in the embodiments involved in Figures 2 and 3A, which will not be repeated here.

[0232] FIG4A is a flow chart of a communication method according to an embodiment of the present disclosure, which is applied to a network device 102. As shown in FIG4A , the embodiment of the present disclosure relates to a communication method, which includes:

[0233] Step S4101: The network device 102 obtains a third instruction.

[0234] The optional implementation of step S4101 can be found in step S2102 of FIG. 2 and other related parts of the embodiment involved in FIG. 2 , which will not be described in detail here.

[0235] 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 entities.

[0236] In step S4102, the network device 102 sends a fourth instruction.

[0237] The optional implementation of step S4102 can be found in step S2103 of FIG. 2 and other related parts of the embodiment involved in FIG. 2 , which will not be described in detail here.

[0238] Step S4103: The network device 102 sends a first instruction.

[0239] The optional implementation of step S4103 can be found in step S2105 of FIG. 2 and other related parts of the embodiment involved in FIG. 2 , which will not be described in detail here.

[0240] The communication method involved in the embodiment of the present disclosure may include at least one of steps S4101 to S4103. For example, step S4101 may be implemented as an independent embodiment, step S4102 may be implemented as an independent embodiment, and step S4103 may be implemented as an independent embodiment, but is not limited thereto.

[0241] In some embodiments, step S4101 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0242] In some embodiments, step S4102 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0243] In some embodiments, step S4103 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0244] FIG4B is a flow chart of a communication method according to an embodiment of the present disclosure, which is applied to the network device 102. As shown in FIG4B , the embodiment of the present disclosure relates to a communication method, which includes:

[0245] Step S4201: The network device 102 sends a first instruction.

[0246] Optional implementations of step S4201 may refer to step S2106 in FIG. 2 , step S4101 in FIG. 4A , and other related parts in the embodiments involved in FIG. 2 and FIG. 4 , which will not be described in detail here.

[0247] FIG5 is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG5 , the embodiment of the present disclosure relates to a communication method, and the method includes:

[0248] Step S5101: The network device 102 sends a first instruction.

[0249] Step S5102: Terminal 101 receives the first instruction.

[0250] Step S5103: The terminal 101 performs TCI state switching based on the non-periodic reference signal within the first time period.

[0251] Optional implementations of step S5101 may refer to step S2105 in FIG. 2 , step S3103 in FIG. 4A , and other related parts in the embodiments involved in FIG. 2 and FIG. 4 , which will not be described in detail here.

[0252] Optional implementations of step S5102 may refer to step S2106 of FIG. 2 , step S3103 of FIG. 3A , and other related parts of the embodiments involved in FIG. 2 and FIG. 3A , which will not be described in detail here.

[0253] The optional implementation of step S5103 can be found in the optional implementation of step S2107 in Figure 2, the optional implementation of step S3104 in Figure 3A, the optional implementation of step S3202 in Figure 3B, and other related parts in the embodiments involved in Figures 2, 3A, and 3B, which will not be repeated here.

[0254] In some embodiments, the above method may include the methods of the embodiments of the above communication system side, terminal 101 side, network device 102 side, etc., which will not be repeated here.

[0255] FIG6 is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG6 , the embodiment of the present disclosure relates to a communication method, and the method includes:

[0256] Step S6101: Terminal 101 sends a signal indicating that it supports fast TCI state switching capability.

[0257] In some embodiments, the network device 102 sends an A-TRS resource configuration via an RRC message, and the A-TRS and the target TCI state are QCL-D.

[0258] In some embodiments, the network device 102 sends a message to trigger the UE to perform TCI state switching based on the A-TRS.

[0259] In some embodiments, the network device 102 sends a message to trigger the UE to perform TCI state switching.

[0260] In some embodiments, the network device 102 may implicitly instruct the UE to perform TCI state switching based on the A-TRS.

[0261] In some embodiments, if the target TCI state is known:

[0262] The UE needs to complete the TCI state switch within THARQ+3Nslotsubframe,μ+Tfirst-ATRS+2ms and receive the PDCCH of the target state TCI in the first time slot after slot n+THARQ+3Nslotsubframe,μ+Tfirst-ATRS+2ms;

[0263] In some embodiments, the network device 102 may schedule the UE in the first time slot after slot n+THARQ+3Nslotsubframe,μ+Tfirst-ATRS+2ms.

[0264] In some embodiments, if the target TCI state is unknown, the UE needs to complete the TCI state switch within THARQ+3Nslotsubframe,μ+TL1-RSRP+Tfirst-ATRS+2ms and receive the PDCCH of the target state TCI in the first time slot after slot n+THARQ+3Nslotsubframe,μ+TL1-RSRP+Tfirst-ATRS+2ms;

[0265] In some embodiments, the network device 102 may schedule the UE in the first time slot after slot n+THARQ+3Nslotsubframe,μ+TL1-RSRP+Tfirst-ATRS+2ms.

[0266] In some embodiments, the network sends an A-TRS resource configuration via an RRC message. The A-TRS and the target TCI state are QCL-TypeD, and the RS for which the UE performs beam management (L1-RSRP) is the source RS of the target TCI state, or the source RS of the target TCI state is QCL-TypeD.

[0267] In some embodiments, the network device 102 sends a message to trigger the UE to perform TCI state switching based on the A-TRS;

[0268] In some embodiments, the network device 102 sends a message to trigger the UE to perform TCI state switching;

[0269] In some embodiments, the network device 102 may implicitly instruct the UE to perform TCI state switching based on the A-TRS;

[0270] In some embodiments, if the target TCI state is unknown: the UE needs to complete the TCI state switch within THARQ+3Nslotsubframe,μ+TL1-RSRP time and receive the PDCCH of the target state TCI in the first time slot after slot n+THARQ+3Nslotsubframe,μ+Tfirst-ATRS;

[0271] In some embodiments, the network may schedule the UE in the first time slot after slot n+THARQ+3Nslotsubframe,μ+TL1-RSRP.

[0272] In the embodiments of the present disclosure, some or all of the steps and their optional implementations may be arbitrarily combined with some or all of the steps in other embodiments, or may be arbitrarily combined with the optional implementations of other embodiments.

[0273] The embodiments of the present disclosure further provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by the terminal 101 in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by the network device 102 (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0274] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0275] In the embodiments of the present disclosure, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution capabilities, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationship of the hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and implementing the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0276] Figure 7A is a structural diagram of the terminal 101 proposed in an embodiment of the present disclosure. As shown in Figure 7A, the terminal 1017100 may include: at least one of a transceiver module 7101, a processing module 7102, etc. In some embodiments, the transceiver module 7101 is used to receive a first instruction, and the first instruction is used to instruct the terminal 101 to switch to a first TCI state based on a non-periodic reference signal. Optionally, the above-mentioned transceiver module is used to execute at least one of the communication steps such as sending and / or receiving (such as step S2101 but not limited to this) performed by the terminal 101101 in any of the above methods, which will not be repeated here. Optionally, the above-mentioned processing module is used to execute at least one of the other steps performed by the terminal 101101 in any of the above methods, which will not be repeated here.

[0277] Optionally, the processing module 7101 is used to execute at least one of the communication steps such as processing performed by the terminal 101 in any of the above methods, which will not be repeated here.

[0278] Figure 7B is a schematic diagram of the structure of a network device proposed in an embodiment of the present disclosure. As shown in Figure 7B, network device 7200 may include: at least one of a transceiver module 7201, a processing module 7202, etc. In some embodiments, transceiver module 7201 is used to send a first instruction, which is used to instruct terminal 101 to switch to a first TCI state based on an aperiodic reference signal. Optionally, the transceiver module is used to perform at least one of the communication steps such as sending and / or receiving performed by network device 102 in any of the above methods (for example, step S2103, step S2105 but not limited thereto), and will not be repeated here.

[0279] Optionally, the processing module 7201 is used to execute at least one of the communication steps such as processing performed by the network device in any of the above methods, which will not be repeated here.

[0280] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, and the transmitting module and the receiving module may be separate or integrated. Optionally, the transceiver module may be interchangeable with the transceiver.

[0281] In some embodiments, the processing module can be a single module or can include multiple submodules. Optionally, the multiple submodules respectively execute all or part of the steps required to be executed by the processing module. Optionally, the processing module can be interchangeable with the processor.

[0282] Figure 8A is a schematic diagram of the structure of a communication device 8100 proposed in an embodiment of the present disclosure. Communication device 8100 can be a network device (e.g., an access network device, a core network device, etc.), or a terminal 101 (e.g., a user device, etc.), or a chip, chip system, or processor that supports a network device in implementing any of the above methods, or a chip, chip system, or processor that supports a terminal 101 in implementing any of the above methods. Communication device 8100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0283] As shown in Figure 8A, the communication device 8100 includes one or more processors 8101. The processor 8101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. The communication device 8100 is used to perform any of the above methods.

[0284] In some embodiments, the communication device 8100 further includes one or more memories 8102 for storing instructions. Optionally, all or part of the memories 8102 may be located outside the communication device 8100.

[0285] In some embodiments, the communication device 8100 further includes one or more transceivers 8103. When the communication device 8100 includes one or more transceivers 8103, the transceiver 8103 performs at least one of the communication steps such as sending and / or receiving in the above method (for example, step S2101, step S2102, step S2103, step S2104, but not limited thereto).

[0286] In some embodiments, a transceiver may include a receiver and / or a transmitter. The receiver and transmitter may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, and transceiver circuit may be used interchangeably; the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be used interchangeably; and the terms receiver, receiving unit, receiver, and receiving circuit may be used interchangeably.

[0287] In some embodiments, the communication device 8100 may include one or more interface circuits 8104. Optionally, the interface circuit 8104 is connected to the memory 8102. The interface circuit 8104 may be configured to receive signals from the memory 8102 or other devices, and may be configured to send signals to the memory 8102 or other devices. For example, the interface circuit 8104 may read instructions stored in the memory 8102 and send the instructions to the processor 8101.

[0288] The communication device 8100 described in the above embodiments 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 an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0289] FIG8B is a schematic diagram of the structure of a chip 8200 according to an embodiment of the present disclosure. If the communication device 8100 can be a chip or a chip system, please refer to the schematic diagram of the structure of the chip 8200 shown in FIG8B , but the present disclosure is not limited thereto.

[0290] The chip 8200 includes one or more processors 8201 , and the chip 8200 is configured to execute any of the above methods.

[0291] In some embodiments, the chip 8200 further includes one or more interface circuits 8202. Optionally, the interface circuit 8202 is connected to the memory 8203. The interface circuit 8202 can be used to receive signals from the memory 8203 or other devices, and can be used to send signals to the memory 8203 or other devices. For example, the interface circuit 8202 can read instructions stored in the memory 8203 and send the instructions to the processor 8201.

[0292] In some embodiments, the interface circuit 8202 performs at least one of the communication steps such as sending and / or receiving in the above method, and the processor 8201 performs at least one of the other steps.

[0293] In some embodiments, terms such as interface circuit, interface, transceiver pin, and transceiver may be used interchangeably.

[0294] In some embodiments, the chip 8200 further includes one or more memories 8203 for storing instructions. Alternatively, all or part of the memories 8203 may be outside the chip 8200.

[0295] The present disclosure also proposes a storage medium having instructions stored thereon, which, when executed on the communication device 8100, causes the communication device 8100 to execute any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto, and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto, and may also be a temporary storage medium.

[0296] The present disclosure also provides a program product, which, when executed by the communication device 8100, enables the communication device 8100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0297] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.

Claims

1. A communication method, characterized in that: The method comprises: receiving a first instruction, wherein the first instruction is used to instruct the terminal to switch to a first TCI state based on a non-periodic reference signal; In a first time period, TCI state switching is performed based on the non-periodic reference signal.

2. The method according to claim 1, characterized in that The method further comprises: A second instruction is received, where the second instruction is used to instruct the terminal to enable a first function, where the first function instructs the terminal to perform TCI state switching based on the non-periodic reference signal.

3. The method according to claim 1 or 2, characterized in that: The method further comprises: Send a third instruction, where the third instruction is used to instruct the terminal to support switching to the first TCI state based on the non-periodic reference signal.

4. The method according to any one of claims 1 to 3, characterized in that: The method further comprises: A fourth instruction is received, where the fourth instruction is used to configure the non-periodic reference signal.

5. The method according to claim 4, characterized in that The fourth instruction includes a resource location of the non-periodic reference signal.

6. The method according to any one of claims 1 to 5, characterized in that: The first time period is determined based on at least one of a first duration, a second duration, a third duration or a fourth duration, wherein the first duration indicates the sum of the duration for downlink data transmission, the duration for receiving feedback and the duration for decoding the first instruction; or, the first duration indicates the duration for decoding the first instruction, the second duration indicates the duration for receiving the non-periodic reference signal for the first time, the third duration indicates the duration for measuring the layer 1 reference signal received power L1-RSRP for beam refinement, and the fourth duration indicates a fixed duration.

7. The method according to claim 6, characterized in that The first TCI state is known, and the first time period is determined based on the first duration, the second duration, and the fourth duration.

8. The method according to claim 6, characterized in that The first TCI state is unknown, and the first time period is determined based on the first duration, the second duration, the third duration, and the fourth duration.

9. The method according to claim 7 or 8, characterized in that: The first TCI state and the non-periodic reference signal are QCL.

10. The method according to claim 6, characterized in that The first TCI state is unknown, and the first time period is determined based on the first duration, the second duration, and the third duration.

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

12. The method according to any one of claims 7 to 11, characterized in that: The first TCI state is known to include at least one of the following: In a second time period, the first command is received within a second preset time length after the last transmission of the beam report or the measurement reference signal; In a second time period, at least one L1-RSRP report for the first TCI state has been sent before the first command; In the second time period, during the TCI state switching, the TCI state is in a detectable state; During the second time period, during the TCI state switching, the SSB associated with the TCI state is in a detectable state; In the second time period, the SNR of 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 when the TCI state switching is completed; The reference signal is a reference signal for performing L1-RSRP measurement in a first TCI state, and the reference signal is a source reference signal of the first TCI state, or the reference signal and the source reference signal of the first TCI state are QCL.

13. The method according to any one of claims 1 to 12, characterized in that: The method further comprises: Receive the PDCCH of the first TCI state on the first time domain resource after the end of the first time period.

14. A communication method, characterized in that: The method comprises: Send a first instruction, where the first instruction is used to instruct the terminal to switch to a first TCI state based on a non-periodic reference signal.

15. The method according to claim 14, characterized in that The method further comprises: Determine that the terminal switches to the first TCI state based on the non-periodic reference signal.

16. The method according to claim 14 or 15, characterized in that The method further comprises: A fourth instruction is sent, where the fourth instruction is used to configure the non-periodic reference signal.

17. The method according to claim 16, characterized in that The fourth instruction includes a resource location of the non-periodic reference signal.

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

19. The method according to claim 18, characterized in that The first TCI state is known, and the first time period is determined based on the first duration, the second duration, and the fourth duration.

20. The method according to claim 18, characterized in that The first TCI state is unknown, and the first time period is determined based on the first duration, the second duration, the third duration, and the fourth duration.

21. The method according to claim 19 or 20, characterized in that The first TCI state and the non-periodic reference signal are QCL.

22. The method according to claim 18, characterized in that The first TCI state is unknown, and the first time period is determined based on the first duration, the second duration, and the third duration.

23. The method according to claim 22, characterized in that The first TCI state and the non-periodic reference signal are of QCL-TypeD, and the reference signal used for L1-RSRP measurement is a source reference signal of the first TCI state; or, The first TCI state and the non-periodic reference signal are of QCL-TypeD, and the reference signal used for L1-RSRP measurement and the source reference signal of the first TCI state are of QCL-TypeD.

24. The method according to any one of claims 19 to 23, characterized in that: The first TCI state is known to include at least one of the following: In a second time period, the first command is received within a second preset time length after the last transmission of the beam report or the measurement reference signal; In a second time period, at least one L1-RSRP report for the first TCI state has been sent before the first command; In the second time period, during the TCI state switching, the TCI state is in a detectable state; During the second time period, during the TCI state switching, the SSB associated with the TCI state is in a detectable state; In the second time period, the SNR of 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 when the TCI state switching is completed; The reference signal is a reference signal for performing L1-RSRP measurement in a first TCI state, and the reference signal is a source reference signal of the first TCI state, or the reference signal and the source reference signal of the first TCI state are QCL.

25. The method according to any one of claims 14 to 24, characterized in that: The method further comprises: The PDCCH of the first TCI state is sent in the first time domain resource after the end of the first time period.

26. A communication method, characterized in that: The method comprises: The network device sends a first instruction, where the first instruction is used to instruct the terminal to switch to a first TCI state based on the non-periodic reference signal; The terminal receives the first instruction; The terminal performs TCI state switching based on the non-periodic reference signal within a first time period.

27. A terminal, characterized in that: The terminal comprises: A transceiver module, configured to receive a first instruction, wherein the first instruction is used to instruct the terminal to switch to a first TCI state based on a non-periodic reference signal; The processing module is used to perform TCI state switching based on the non-periodic reference signal within a first time period.

28. A network device, characterized in that: The network equipment includes: The transceiver module is used to send a first instruction, where the first instruction is used to instruct the terminal to switch to a first TCI state based on a non-periodic reference signal.

29. A terminal, characterized in that: The terminal comprises: one or more processors; The terminal is used to execute the communication method according to any one of claims 1 to 13.

30. A network device, characterized in that: The terminal comprises: one or more processors; The terminal is used to execute the communication method described in any one of claims 14 to 25.

31. A communication system, characterized in that: It comprises a terminal and a network device, wherein the terminal is configured to implement the communication method described in any one of claims 1 to 13, and the network device is configured to implement the communication method described in any one of claims 14 to 25.

32. A storage medium storing instructions, characterized in that: When the instruction is executed on a communication device, the communication device executes the communication method according to any one of claims 1 to 13, or executes the communication method according to any one of claims 14 to 25.

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