Communication method, device and system, and storage medium

Abstract

The embodiments of the present disclosure relate to the technical field of communications. Disclosed are a communication method, device and system, and a computer-readable storage medium. The communication method, which is applied to a terminal side, comprises: determining, according to first information, a timing advance group (TAG) corresponding to a timing advance (TA) value, wherein the first information comprises at least one of first indication information and second indication information, the first indication information being used for indicating an association relationship between a preamble and the TAG, and the second indication information being used for indicating TAG information associated with the TA value. In the embodiments of the present disclosure, according to information indicating an association relationship between a TAG and a preamble or a TA value, the TAG corresponding to the TA value is determined, and thus the system performance can be improved.

Description

Communication method, communication device, system and storage medium Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to a communication method, communication equipment, system and storage medium. Background Art

[0002] In a multiple transmission reception point (M-TRP) system, two transmission reception points (TRPs) are usually located in different geographical areas, and the distances between a terminal and the two TRPs are different, thus having different transmission delays.

[0003] Summary of the Invention

[0004] Embodiments of the present disclosure provide a communication method, a communication device, a system, and a storage medium.

[0005] According to a first aspect of the present disclosure, a communication method is provided, the method comprising:

[0006] Determine, according to the first information, a timing advance group TAG corresponding to the timing advance value TA;

[0007] The first information includes at least one of first indication information and second indication information, wherein the first indication information is used to indicate the association relationship between the preamble code and the TAG, and the second indication information is used to indicate the TAG information associated with the TA value.

[0008] A second aspect of the present disclosure provides a communication method, the method comprising:

[0009] First information is sent, where the first information includes at least one of first indication information and second indication information, wherein the first indication information is used to indicate the association relationship between the preamble code and the TAG, and the second indication information is used to indicate TAG information associated with the TA value.

[0010] According to a third aspect of the present disclosure, a terminal is provided, including:

[0011] a processing module configured to determine a timing advance group TAG corresponding to the timing advance value TA according to the first information;

[0012] The first information includes at least one of first indication information and second indication information, wherein the first indication information is used to indicate the association relationship between the preamble code and the TAG, and the second indication information is used to indicate the TAG information associated with the TA value.

[0013] A fourth aspect of the embodiments of the present disclosure provides a network device, including:

[0014] The second transceiver module is configured to send first information, wherein the first information includes at least one of first indication information and second indication information, wherein the first indication information is used to indicate the association relationship between the preamble code and the TAG, and the second indication information is used to indicate the TAG information associated with the TA value.

[0015] According to a fifth aspect of the present disclosure, a terminal is provided, including:

[0016] one or more processors;

[0017] The terminal is used to execute the optional implementation of the aforementioned first aspect.

[0018] According to a sixth aspect of the present disclosure, a network device is provided, including:

[0019] one or more processors;

[0020] The network device is used to execute the optional implementation method of the aforementioned second aspect.

[0021] In the seventh aspect of the embodiments of the present disclosure, a communication system is proposed, including a terminal and a network device, wherein the terminal is configured to implement the method described in the optional implementation manner of the first aspect, and the network device is configured to implement the method described in the optional implementation manner of the second aspect.

[0022] According to an eighth aspect of an embodiment of the present disclosure, a computer-readable storage medium is provided, in which executable instructions are stored. The executable instructions are loaded and executed by the processor to implement the method described in the optional implementation of the first or second aspect above.

[0023] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0025] FIG1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure;

[0026] FIG2 is a flow chart of a communication method provided by an embodiment of the present disclosure;

[0027] FIG3a is a flow chart of a communication method according to an embodiment of the present disclosure;

[0028] FIG3 b is a flow chart of a communication method according to an embodiment of the present disclosure;

[0029] FIG3 c is a flow chart of a communication method according to an embodiment of the present disclosure;

[0030] FIG3 d is a flow chart of a communication method according to an embodiment of the present disclosure;

[0031] FIG4a is a flow chart showing a communication method according to an embodiment of the present disclosure;

[0032] FIG4 b is a flow chart illustrating a communication method according to an embodiment of the present disclosure;

[0033] FIG5 is a flow chart of a communication method according to an embodiment of the present disclosure;

[0034] FIG6a is a schematic structural diagram of an apparatus for determining a timing advance according to an embodiment of the present disclosure;

[0035] FIG6 b is a schematic structural diagram of an apparatus for determining a timing advance according to an embodiment of the present disclosure;

[0036] FIG7a is a schematic structural diagram of a communication device proposed in an embodiment of the present disclosure;

[0037] FIG7 b is a schematic structural diagram of a chip proposed in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0038] The embodiments of the present disclosure provide a communication method, a communication device, a communication system, and a storage medium.

[0039] In a first aspect, an embodiment of the present disclosure provides a communication method, the method comprising:

[0040] Determine, according to the first information, a timing advance group TAG corresponding to the timing advance value TA;

[0041] The first information includes at least one of first indication information and second indication information, wherein the first indication information is used to indicate the association relationship between the preamble code and the TAG, and the second indication information is used to indicate the TAG information associated with the TA value.

[0042] In the above embodiment, the TAG corresponding to the TA value is determined according to the information indicating the association relationship between the TAG and the preamble or the TA value, thereby distinguishing the TAG associated with the M-TRP, which can improve system performance.

[0043] In conjunction with some embodiments of the first aspect, in some embodiments, the first indication information is included in at least one of the second information and the third information, wherein the second information is information for establishing a network connection, and the third information is information for triggering a random access procedure;

[0044] The second indication information is included in feedback information corresponding to the first preamble code, wherein the first preamble code is a preamble code in the preamble code indicated by the preamble code identifier included in the third information.

[0045] In the above embodiment, by including information indicating TAG information associated with the TA value in the feedback information corresponding to the first preamble code, and including information indicating the association relationship between the preamble code and the TAG in at least one of the second information and the third information, transmission resources can be effectively saved, and at the same time, successful transmission of information can be ensured, thereby providing a guarantee for the subsequent determination of the TAG corresponding to the TA value.

[0046] In conjunction with some embodiments of the first aspect, in some embodiments, the indication method of the TAG information associated with the TA value includes any one of the following:

[0047] Indicates one or more tags associated with a TA value;

[0048] Indicates one or more tags associated with each TA value in multiple TA values.

[0049] In the above embodiment, the completeness of the TAG information associated with the TA value is guaranteed, which provides a guarantee for the subsequent determination of the TAG corresponding to the TA value.

[0050] In conjunction with some embodiments of the first aspect, in some embodiments, the first information includes the second indication information, and determining the TAG corresponding to the TA value includes:

[0051] The feedback information includes a TAG associated with the TA value, and the TAG corresponding to the TA value is determined to be the TAG included in the feedback information.

[0052] In the above embodiment, when a TA value is associated with a TAG, it is possible to quickly determine that the TAG corresponding to the TA value is the TAG associated with the TA value, thereby improving system efficiency.

[0053] In combination with some embodiments of the first aspect, in some embodiments, the feedback information further includes fourth information, where the fourth information is used to indicate one TAG among multiple TAGs associated with the TA value.

[0054] In the above embodiment, the fourth information is included in the feedback information to indicate one TAG among multiple TAGs associated with the TA value, thereby ensuring that the terminal can accurately determine the TAG corresponding to the TA value.

[0055] In conjunction with some embodiments of the first aspect, in some embodiments, the first information includes the second indication information, and determining the TAG corresponding to the TA value includes:

[0056] The feedback information includes multiple tags associated with the TA value, and the TAG corresponding to the TA value is determined to be the TAG indicated by the fourth information.

[0057] In the above embodiment, when the TA value is associated with multiple tags, the TAG corresponding to the TA value is determined to be the TAG indicated by the fourth information, thereby achieving the purpose of accurately determining the TAG corresponding to the TA value.

[0058] In conjunction with some embodiments of the first aspect, in some embodiments, the first information includes the first indication information, and determining the TAG corresponding to the TA value includes:

[0059] The association relationship between the preamble code and the TAG is that the preamble code is associated with one TAG, and the TAG corresponding to the TA value is determined to be the TAG associated with the preamble code.

[0060] In the above embodiment, when the preamble is associated with a TAG, the TAG corresponding to the TA value can be quickly determined to be the TAG associated with the preamble, thereby improving system efficiency.

[0061] In combination with some embodiments of the first aspect, in some embodiments, the feedback information also includes fifth information corresponding to the TA value, and the fifth information is used to indicate one TAG among multiple TAGs associated with the preamble code.

[0062] In the above embodiment, the fifth information is included in the feedback information to indicate one TAG among multiple TAGs associated with the preamble, thereby ensuring that the terminal can accurately determine the TAG corresponding to the TA value.

[0063] In conjunction with some embodiments of the first aspect, in some embodiments, the first information includes the first indication information, and determining the TAG corresponding to the TA value includes:

[0064] The association relationship between the preamble code and the TAG is that the preamble code is associated with multiple TAGs, and the TAG corresponding to the TA value is determined to be the TAG indicated by the fifth information.

[0065] In the above embodiment, when the preamble is associated with multiple TAGs, the TAG corresponding to the TA value is determined to be the TAG indicated by the fifth information, thereby achieving the purpose of accurately determining the TAG corresponding to the TA value.

[0066] In conjunction with some embodiments of the first aspect, in some embodiments, the first information includes the first indication information and the second indication information, and determining the TAG corresponding to the TA value includes:

[0067] According to the priority, the TAG corresponding to the TA value is determined.

[0068] In the above embodiment, when both the "association relationship between the preamble and the TAG" and the "TAG information associated with the TA value" are indicated, the TAG corresponding to the TA value can be determined more accurately according to the priority.

[0069] In conjunction with some embodiments of the first aspect, in some embodiments, the PDCCH command further includes information for indicating a TAG identifier, and indicates the TAG identifier in any of the following ways:

[0070] Use a 2-bit field to indicate all TAG identifiers;

[0071] A 1-bit field is used to indicate one of the two TAG identifiers associated with the M-TRP;

[0072] Use a multi-bit field to indicate all TAG identifiers;

[0073] A 2-bit field is used to indicate the two TAG identifiers associated with the M-TRP.

[0074] In the above embodiment, by indicating the TAG identifier in the PDCCH command, the TAG ID can be obtained, and then the TAG corresponding to the TA value is determined to be the TAG associated with the preamble, and the TAG is consistent with the TAG indicated by the TAG ID.

[0075] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0076] Sending a first preamble;

[0077] Feedback information corresponding to the first preamble code is received, where the feedback information includes the TA value.

[0078] In the above embodiment, by including the TA value in the feedback information corresponding to the first preamble code, it is ensured that the terminal can obtain the TA value.

[0079] In combination with some embodiments of the first aspect, in some embodiments, the feedback information is a random access response message, and the feedback information is included in a timing advance command medium access control-control unit.

[0080] In the above embodiment, different types of information are used as feedback information, which allows for more flexible information transmission.

[0081] In a second aspect, an embodiment of the present disclosure provides a communication method, the method comprising:

[0082] First information is sent, where the first information includes at least one of first indication information and second indication information, wherein the first indication information is used to indicate the association relationship between the preamble code and the TAG, and the second indication information is used to indicate TAG information associated with the TA value.

[0083] In combination with some embodiments of the second aspect, in some embodiments, the first indication information and the second indication information are sent through different signaling.

[0084] In conjunction with some embodiments of the second aspect, in some embodiments, the first indication information is included in at least one of the second information and the third information, wherein the second information is information for establishing a network connection, and the third information is information for triggering a random access procedure;

[0085] The second indication information is included in feedback information corresponding to the first preamble code, wherein the first preamble code is a preamble code in the preamble code indicated by the preamble code identifier included in the third information.

[0086] In conjunction with some embodiments of the second aspect, in some embodiments, the indication method of the TAG information associated with the TA value includes any one of the following:

[0087] Indicates one or more tags associated with a TA value;

[0088] Indicates one or more tags associated with each TA value in multiple TA values.

[0089] In combination with some embodiments of the second aspect, in some embodiments, the first information includes the second indication information, and the feedback information includes a TAG associated with the TA value, and the TAG included in the feedback information is determined to be the TAG corresponding to the TA value.

[0090] In combination with some embodiments of the second aspect, in some embodiments, the feedback information further includes fourth information, where the fourth information is used to indicate one TAG among multiple TAGs associated with the TA value.

[0091] In combination with some embodiments of the second aspect, in some embodiments, the first information includes the second indication information, and the feedback information includes multiple TAGs associated with the TA value, and the TAG indicated by the fourth information is determined to be the TAG corresponding to the TA value.

[0092] In combination with some embodiments of the second aspect, in some embodiments, the first information includes the first indication information, and the association relationship between the preamble code and the TAG indicated by the first indication information includes the first preamble code being associated with a TAG, and the TAG associated with the first preamble code is determined to be the TAG corresponding to the TA value.

[0093] In combination with some embodiments of the second aspect, in some embodiments, the feedback information also includes fifth information corresponding to the TA value, and the fifth information is used to indicate one TAG among multiple TAGs associated with the first preamble code.

[0094] In combination with some embodiments of the second aspect, in some embodiments, the first information includes the first indication information, and the association relationship between the preamble code indicated by the first indication information and the TAG includes the first preamble code being associated with multiple TAGs, and the TAG indicated by the fifth information is determined to be the TAG corresponding to the TA value.

[0095] In combination with some embodiments of the second aspect, in some embodiments, the first information includes the first indication information and the second indication information, and the TAG corresponding to the TA value is determined according to the priority.

[0096] In conjunction with some embodiments of the second aspect, in some embodiments, the third information further includes information for indicating a TAG identifier, and indicates the TAG identifier in any of the following ways:

[0097] Use a 2-bit field to indicate all TAG identifiers;

[0098] A 1-bit field is used to indicate one of the two TAG identifiers associated with the M-TRP;

[0099] Use a multi-bit field to indicate all TAG identifiers;

[0100] A 2-bit field is used to indicate the two TAG identifiers associated with the M-TRP.

[0101] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0102] receiving a first preamble;

[0103] Send feedback information corresponding to the first preamble code, where the feedback information includes the TA value.

[0104] In combination with some embodiments of the second aspect, in some embodiments, the feedback information is a random access response message, and the feedback information is included in a timing advance command media access control-control unit.

[0105] In a third aspect, an embodiment of the present disclosure provides a terminal, including:

[0106] a processing module configured to determine a timing advance group TAG corresponding to the timing advance value TA according to the first information;

[0107] The first information includes at least one of first indication information and second indication information, wherein the first indication information is used to indicate the association relationship between the preamble code and the TAG, and the second indication information is used to indicate the TAG information associated with the TA value.

[0108] In a fourth aspect, an embodiment of the present disclosure provides a network device, including:

[0109] The second transceiver module is configured to send first information to the terminal, wherein the first information includes at least one of first indication information and second indication information, wherein the first indication information is used to indicate the association relationship between the preamble code and the TAG, and the second indication information is used to indicate the TAG information associated with the TA value.

[0110] In a fifth aspect, an embodiment of the present disclosure provides a terminal, including:

[0111] one or more processors;

[0112] The terminal executes the method described in the optional implementation manner of the first aspect.

[0113] According to a sixth aspect of an embodiment of the present disclosure, a network device is provided, including:

[0114] one or more processors;

[0115] In which, the network device executes the method described in the optional implementation manner of the second aspect.

[0116] In the seventh aspect, an embodiment of the present disclosure proposes a communication system, including a terminal and a network device, wherein the terminal is configured to implement the method described in the optional implementation mode of the first aspect, and the network device is configured to implement the method described in the optional implementation mode of the second aspect.

[0117] In an eighth aspect, an embodiment of the present disclosure proposes a storage medium, which stores instructions. When the instructions are executed on a communication device, the communication device executes the method described in the optional implementation of the first aspect or the second aspect.

[0118] 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 the method described in the optional implementation manner of the first aspect or the second aspect.

[0119] In a tenth aspect, an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the method described in the optional implementation of the first aspect or the second aspect.

[0120] In an eleventh aspect, an embodiment of the present disclosure proposes a chip or a chip system, which includes a processing circuit configured to execute the method described in the optional implementation of the first or second aspect above.

[0121] It is understood that the aforementioned apparatus for determining timing advance, communication device, communication system, storage medium, program product, and computer program are all used to implement the methods proposed in the embodiments of the present disclosure. Therefore, the beneficial effects achieved by the methods can be referenced to the beneficial effects of the corresponding methods and will not be further described here. The communication device may be a terminal or a network device.

[0122] The present disclosure provides communication methods, apparatuses, communication devices, communication systems, and storage media. In some embodiments, the terms "communication method," "information processing method," and "communication method" are interchangeable; the terms "apparatus for determining timing advance," "information processing apparatus," and "communication apparatus" are interchangeable; and the terms "information processing system," "communication system," and "communication system" are interchangeable.

[0123] 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 embodiments 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.

[0124] 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.

[0125] 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 embodiments of the present disclosure.

[0126] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0127] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0128] In some embodiments, the terms "at least one of", "at least one of", "at least one of", "one or more", "a plurality of", "multiple", etc. can be used interchangeably.

[0129] In the embodiments of the present disclosure, descriptions such as “at least one of A, B, C…”, “A and / or B and / or C…”, etc. include the situation where any one of A, B, C… exists alone, and also include any combination of any multiple of A, B, C…, and each situation can exist alone; for example, “at least one of A, B, C” includes the situation where A exists alone, B exists alone, C exists alone, the combination of A and B, the combination of A and C, the combination of B and C, and the combination of A, B, and C; for example, A and / or B includes the situation where A exists alone, B exists alone, and the combination of A and B.

[0130] In some embodiments, descriptions such as "in one case A, in another case B," or "in response to one case A, in response to another case B," may include the following technical solutions depending on the situation: executing A independently of B (in some embodiments, A); executing B independently of A (in some embodiments, B); selectively executing A and B (in some embodiments, selecting between A and B); and executing both A and B (in some embodiments, A and B). The same applies when there are more branches, such as A, B, and C.

[0131] 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 configuration" and the "second configuration" can be the same information or different information, and their contents can be the same or different.

[0132] 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.

[0133] 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.

[0134] 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.

[0135] In some embodiments, devices, etc. can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. Terms such as "device", "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", and "subject" can be used interchangeably.

[0136] In some embodiments, the terms "access network device (AN device)", "radio access network device (RAN device)", "base station (BS)", "radio base station" "fixed station", "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission / reception point (TRP)", "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "carrier", "component carrier", "bandwidth part (BWP)" and the like may be used interchangeably.

[0137] In some embodiments, the terms "terminal", "terminal device", "user equipment (UE)", "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. can be used interchangeably.

[0138] In some embodiments, the access network device, the core network device, or the network device can be replaced by a terminal. For example, the various embodiments of the embodiments of the present disclosure can also be applied to a structure in which the communication between the access network device, the core network device, or the network device and the terminal is replaced by communication between multiple terminals (for example, which can also be referred to as device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, it can also be set as a structure in which the terminal has all or part of the functions of the access network device. In addition, languages ​​such as "uplink" and "downlink" can also be replaced with languages ​​corresponding to communication between terminals (for example, "side").

[0139] For example, an uplink channel, a downlink channel, etc. may be replaced by a side channel, and an uplink, a downlink, etc. may be replaced by a side link.

[0140] 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.

[0141] In some embodiments, the terms "downlink control information (DCI)", "downlink (DL) assignment", "DL DCI", "uplink (UL) grant", "UL DCI" and the like may be used interchangeably.

[0142] In some embodiments, terms such as "physical downlink shared channel (PDSCH)" and "DL data" can be used interchangeably, and terms such as "physical uplink shared channel (PUSCH)" and "UL data" can be used interchangeably.

[0143] In some embodiments, "predetermined" and "preset" can be interpreted as pre-specified in a protocol, etc., or can be interpreted as a pre-set action performed by a device, etc.

[0144] In some embodiments, determining may be interpreted as judging, calculating, computing, processing, deriving, investigating, searching, looking up, retrieving, ascertaining, receiving, transmitting, inputting, outputting, accessing, resolving, selecting, choosing, establishing, comparing, “assuming,” “expecting,” “considering,” broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, and the like, but is not limited thereto.

[0145] In some embodiments, "network" can be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).

[0146] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0147] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0148] 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.

[0149] FIG1 is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0150] As shown in FIG1 , a communication system 100 includes a terminal 101 and a network device 102 .

[0151] 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.

[0152] In some embodiments, the network device 102 may include at least one of an access network device and a core network device.

[0153] In some embodiments, the access network device is, for example, a node or device that accesses a terminal to a wireless network. The 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 wireless fidelity (WiFi) system, but is not limited thereto.

[0154] In some embodiments, the technical solutions of the embodiments of the present disclosure may be applicable to the Open RAN architecture. In this case, the interfaces between or within the network devices involved in the embodiments of the present disclosure may become internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces may be implemented through software or programs.

[0155] 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 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.

[0156] In some embodiments, the access network device may be a single device, or may be multiple devices or a group of devices, each including all or part of a first network element, a second network element, etc. The network element may be virtual or physical. The network device may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC).

[0157] 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).

[0158] 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.

[0159] The following embodiments of the present disclosure may be applied to the communication system 100 shown in Figure 1, or a portion thereof, but are not limited thereto. The entities shown in Figure 1 are illustrative only. The communication system may include all or part of the entities shown in Figure 1, or may include other entities outside of Figure 1. The number and form of the entities may be arbitrary. The connection relationship between the entities is illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0160] The embodiments of the present disclosure may 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, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

[0161] In a Multiple Input Multiple Output (MIMO) Multiple Transmission Reception Point (M-TRP) system, two Transmission Reception Points (TRPs) use only one transmission time (TA) for transmission, meaning TA adjustment is performed based on only one TRP. Therefore, uplink and downlink time synchronization can only be achieved at one TRP. However, in an inter-cell or intra-cell M-TRP system, the two TRPs are typically in different geographic areas, and the distances between the terminal and the two TRPs are different, resulting in different transmission delays. In this case, uplink and downlink time synchronization cannot be achieved at the other TRP, resulting in inter-symbol interference (ISI) between uplink and downlink symbols, which in turn leads to system performance loss.

[0162] The solution provided by the embodiment of the present disclosure determines the TAG corresponding to the TA value based on information indicating the association relationship between the TAG and the preamble or TA value, thereby distinguishing the TAG associated with the M-TRP.

[0163] Based on the above wireless communication system, various embodiments of the communication method proposed in the present disclosure are described in detail below.

[0164] FIG2 is an interactive diagram of a communication method provided according to an embodiment of the present disclosure. As shown in FIG2 , the communication method is used in a communication system 100, and the method includes:

[0165] S201 : The network device 102 sends at least one of second information and third information to the terminal 101 .

[0166] In some embodiments, terminal 101 receives at least one of the second information and the third information.

[0167] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, the core network device, or the network device may have a structure that has all or part of the functions of the terminal.

[0168] 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", and "data" can be used interchangeably.

[0169] In some embodiments, at least one of the second information and the third information includes first indication information, where the first indication information is used to indicate an association relationship between a preamble and a TAG.

[0170] In some embodiments, the association relationship between the preamble and the TAG may include any of the following:

[0171] A preamble is associated with one or more TAGs;

[0172] Each of the plurality of preambles is associated with one or more TAGs.

[0173] In some embodiments, the second information is information for establishing a network connection.

[0174] In some embodiments, the second information is information related to Radio Resource Control (RRC) configuration. Exemplary information related to RRC configuration includes, but is not limited to, RRC configuration information. It may also be other information related to RRC configuration.

[0175] In some embodiments, the terms "radio", "wireless", "radio access network (RAN)", "access network (AN)", "RAN-based" and the like may be used interchangeably.

[0176] In some embodiments, the third information is information used to trigger a random access procedure.

[0177] Optionally, the third information is information used to send a preamble code.

[0178] In some embodiments, the third information is a physical downlink control channel (PDCCH) order, but is not limited thereto and may also be other information for triggering a random access process.

[0179] In some embodiments, if the first indication information is included in the third information, the third information also includes information for indicating a TAG identifier. Exemplarily, the TAG identifier is indicated by introducing a TAG ID field in a PDCCH order.

[0180] In some embodiments, the manner in which the PDCCH order indicates the TAG identifier includes any one of the following:

[0181] 1. Use a 2-bit field to indicate all TAG IDs;

[0182] 2. Use a 1-bit field to indicate one of the two tag IDs associated with the M-TRP. This approach can save overhead.

[0183] 3. Use multiple bit fields to indicate all TAG IDs. For example, use a 4-bit field to indicate all TAG IDs.

[0184] 4. Use a 2-bit field to indicate the two TAG IDs associated with the M-TRP.

[0185] In some embodiments, the PDCCH command further includes information for indicating a preamble identifier. Exemplarily, the preamble identifier is indicated by a random access preamble index.

[0186] In some embodiments, the first preamble is indicated by a random access preamble index, for example, a random access preamble index 1 indicates the first preamble.

[0187] S202 . Terminal 101 sends a first preamble code to network device 102 .

[0188] In some embodiments, terminal 101 sends a preamble to network device 102 according to the preamble identifier indicated in the PDCCH command. For example, if the preamble identifier indicated in the PDCCH command is preamble 1, terminal 101 sends preamble 1 (which may correspond to the first preamble mentioned above) to network device 102.

[0189] S203 . The network device 102 sends feedback information corresponding to the first preamble code to the terminal 101 .

[0190] Exemplarily, the network device 102 sends feedback information corresponding to the preamble code 1 to the terminal 101.

[0191] In some embodiments, the feedback information includes a TA value.

[0192] In some embodiments, the TA value included in the feedback information is one or more.

[0193] In some embodiments, the feedback information includes second indication information, where the second indication information is used to indicate TAG information associated with the TA value.

[0194] In some embodiments, the feedback information includes at least one of the following:

[0195] The feedback information includes a TA value, and the second indication information indicates one or more TAGs associated with the TA value;

[0196] The feedback information includes multiple TA values, and the second indication information indicates one or more TAGs associated with each of the multiple TA values.

[0197] In some embodiments, the feedback information includes a TA value, and the second indication information indicates one or more tags associated with the TA value. Optionally, when the feedback information includes a TA value, the second indication information indicates one or more tags associated with the TA value. Optionally, when the feedback information includes a TA value, the second indication information indicates one or more tags associated with the TA value;

[0198] In some embodiments, the feedback information includes multiple TA values, and the second indication information indicates one or more TAGs associated with each of the multiple TA values. Optionally, when the feedback information includes multiple TA values, the second indication information indicates one or more TAGs associated with each of the multiple TA values. Optionally, when the feedback information includes multiple TA values, the second indication information indicates one or more TAGs associated with each of the multiple TA values.

[0199] In some embodiments, the feedback information includes a TA value, and the second indication information indicates one or more TAGs associated with the TA value; the feedback information includes multiple TA values, and the second indication information indicates one or more TAGs associated with each of the multiple TA values.

[0200] Optionally, when the feedback information includes a TA value, the second indication information indicates one or more TAGs associated with the TA value; when the feedback information includes multiple TA values, the second indication information indicates one or more TAGs associated with each of the multiple TA values.

[0201] Optionally, when the feedback information includes a TA value, the second indication information indicates one or more TAGs associated with the TA value; when the feedback information includes multiple TA values, the second indication information indicates one or more TAGs associated with each of the multiple TA values.

[0202] In some embodiments, the determination or judgment can be performed by a value represented by 1 bit (0 or 1), or by a true or false value (Boolean value) represented by true or false, or by comparison of numerical values ​​(for example, comparison with a predetermined value), but is not limited thereto.

[0203] In some embodiments, if at least one of the second information and the third information does not indicate the TAG associated with the first preamble code, or the association relationship between the preamble code and the TAG indicated in at least one of the second information and the third information does not include the TAG associated with the first preamble code, the TAG information corresponding to the TA value can be indicated in the feedback information corresponding to the first preamble code.

[0204] In some embodiments, the feedback information may be a Random Access Response (RAR) message.

[0205] In some embodiments, the RAR includes any one of the following information: 4-step RACH Msg2 RAR, 2-step RACH, MsgB fallback RAR, 2-step RACH MsgB success RAR.

[0206] In some embodiments, the feedback information may be included in a Timing Advance Command MAC CE (TAC MAC CE).

[0207] In some embodiments, if the association relationship between the preamble code and the TAG indicated by the first indication information is: one preamble code is associated with multiple TAGs, the feedback information also includes: fifth information corresponding to the TA value, and the fifth information is used to indicate one TAG among the multiple TAGs associated with the preamble code.

[0208] In some embodiments, terms such as "in the case of", "at the time of", "when", "if", and "if" can be used interchangeably.

[0209] In some embodiments, the second indication information indicates multiple tags associated with a TA value, and the feedback information further includes: fourth information corresponding to the TA value, where the fourth information is used to indicate one TAG among the multiple tags associated with the TA value.

[0210] In some embodiments, terms such as "send", "transmit", "report", "download", "transmit", "bidirectional transmission", "send and / or receive" can be used interchangeably.

[0211] S204. The terminal 101 determines a TAG corresponding to the TA value in the feedback information according to at least one of the second information, the third information and the feedback information.

[0212] In some embodiments, the TAG corresponding to the TA value in the feedback information is determined based on the feedback information.

[0213] Optionally, the above step S201 can be omitted.

[0214] In some embodiments, the feedback information including the second indication information is first information related to the TAG, and the second indication information is used to indicate TAG information associated with the TA value.

[0215] In some embodiments, the TAG information associated with the TA value may be indicated in any of the following ways:

[0216] Indicates one or more tags associated with a TA value;

[0217] Indicates one or more tags associated with each TA value in multiple TA values.

[0218] In some embodiments, the second indication information is used to indicate TAG information associated with the TA value received by the terminal.

[0219] In some embodiments, the TAG corresponding to the TA value in the feedback information is determined according to the second indication information included in the feedback information.

[0220] In some embodiments, the feedback information includes a TAG associated with the TA value, and the terminal 101 determines that the TAG corresponding to the TA value is the TAG included in the feedback information.

[0221] Exemplarily, the feedback information includes the TA value 1 and the TAG1 corresponding to the TA value 1, and the terminal 101 determines that the TAG corresponding to the TA value 1 is TAG1, that is, the TA value 1 is used for its corresponding TAG1.

[0222] For example, the feedback information includes TA value 1, TA value 2, TAG1 corresponding to TA value 1, and TAG3 corresponding to TA value 2. The terminal 101 determines that the TAG corresponding to TA value 1 is TAG1, and the TAG corresponding to TA value 2 is TAG5, that is, TA value 1 is used for its corresponding TAG1, and TA value 2 is used for its corresponding TAG5.

[0223] In some embodiments, the feedback information includes multiple tags associated with the TA value, and the terminal 101 determines that the TAG corresponding to the TA value is the TAG indicated by the fourth information, wherein the fourth information is used to indicate one of the multiple tags associated with the TA value.

[0224] Exemplarily, the feedback information includes TA value 1, TAG1 and TAG2 corresponding to TA value 1, and fourth information (for example, indicating TA-associated TAG2), then terminal 101 determines that the TAG corresponding to TA value 1 is TAG2, that is, TA value 1 is used for its corresponding TAG2.

[0225] That is, in the case where the first information related to the TAG includes the second indication information, the TAG corresponding to the TA value can be determined through the above optional implementation scheme.

[0226] In some embodiments, when the first information related to the TAG includes first indication information, the determination of the TAG corresponding to the TA value can be achieved through the following optional implementation scheme.

[0227] Optionally, the second information including the first indication information is first information related to the TAG.

[0228] Optionally, the third information including the first indication information is first information related to the TAG.

[0229] Optionally, the second information and the third information including the first indication information are first information related to the TAG.

[0230] In some embodiments, the TAG corresponding to the TA value in the feedback information is determined according to the first indication information included in the second information or the third information.

[0231] In some embodiments, if the association relationship between the preamble code and the TAG indicated by the first indication information includes that the first preamble code is associated with one TAG, the terminal 101 determines that the TAG corresponding to the TA value is the TAG associated with the preamble code.

[0232] Exemplarily, if the preamble code 1 indicated in the RRC configuration information or PDCCH command is associated with TAG4, the terminal 101 determines that the TAG corresponding to the TA value (for example, the TA value 1 included in the feedback information) is TAG4 associated with the preamble code 1, that is, the TA value 1 is used for TAG4 associated with the preamble code 1.

[0233] In some embodiments, if the association relationship between the preamble and the TAG indicated by the first indication information includes that the first preamble is associated with multiple TAGs, the terminal 101 determines that the TAG corresponding to the TA value is the TAG indicated by the fifth information. The fifth information is used to indicate one TAG among the multiple TAGs associated with the first preamble.

[0234] Exemplarily, if the preamble code 1 indicated in the RRC configuration information or PDCCH command is associated with TAG1, TAG2, TAG3, the feedback information includes a TA value of 1, and the fifth information (for example: indicating that the preamble code 1 is associated with TAG3), the terminal 101 determines that the TAG corresponding to the TA value 1 is TAG3, that is, the TA value 1 is used for TAG3 associated with the preamble code 1 indicated by the fifth information.

[0235] In some embodiments, if the association between the preamble code indicated by the first indication information and the TAG is included in the third information, and the third information also includes the TAG ID, the terminal 101 determines that the TAG corresponding to the TA value is the TAG associated with the preamble code, and the TAG is consistent with the TAG indicated by the TAG ID.

[0236] Exemplarily, the third information is a PDCCH command, and the PDCCH command also includes a TAG ID.

[0237] For example, if the preamble 1 is associated with a TAG named TAG1, the terminal 101 determines that the TAG corresponding to the TA value (TA value 1 in the feedback information) is TAG1, and the TAG indicated by the TAG ID is TAG1. If the preamble 1 is associated with a TAG named TAG1 or TAG2, the terminal 101 determines that the TAG corresponding to the TA value 1 is TAG1 indicated by the fifth information, and the TAG indicated by the TAG ID is TAG1.

[0238] In some embodiments, the TAG corresponding to the TA value in the feedback information is determined according to the first indication information included in the second information and the third information.

[0239] In some embodiments, the TAG corresponding to the TA value is determined based on the priority.

[0240] In some embodiments, the priority may be a first priority relative to the second information and the third information.

[0241] In some embodiments, the first priority may be specified by a protocol, a network configuration, a high-level configuration, or a terminal setting, which is not limited in this embodiment. It should be understood that the first priority is not limited to this, and other information acquisition methods may also be used.

[0242] In some embodiments, if the priority of the second information is higher than the priority of the third information, the terminal 101 determines the TAG corresponding to the TA value according to the association relationship between the preamble code indicated by the first indication information included in the second information and the TAG.

[0243] In some embodiments, if the priority of the third information is higher than the priority of the second information, the terminal 101 determines the TAG corresponding to the TA value according to the association relationship between the preamble code indicated by the first indication information included in the third information and the TAG.

[0244] Exemplarily, if the association relationship between the preamble code and the TAG indicated by the first indication information includes that the first preamble code is associated with one TAG, the terminal 101 determines that the TAG corresponding to the TA value is the TAG associated with the preamble code.

[0245] Exemplarily, if the association relationship between the preamble and the tag indicated by the first indication information includes that the first preamble is associated with multiple tags, the terminal 101 determines that the tag corresponding to the TA value is the tag indicated by the fifth information. The fifth information is used to indicate one tag among the multiple tags associated with the first preamble.

[0246] If the first information includes first indication information and second indication information, the TAG corresponding to the TA value may be determined by the following optional implementation scheme.

[0247] In some embodiments, the TAG corresponding to the TA value is determined based on the second information and the feedback information, or based on the third information and the feedback information, or based on the second information, the third information and the feedback information.

[0248] In some embodiments, the terminal 101 determines the TAG corresponding to the TA value based on the priority.

[0249] In some embodiments, the priority may be a second priority associated with the first indication information and the second indication information.

[0250] In some embodiments, the second priority may be specified by a protocol, a network configuration, a high-level configuration, or a terminal setting, which is not limited in this embodiment. It should be understood that the second priority is not limited to this, and other information acquisition methods may also be used.

[0251] In some embodiments, if the priority of the first indication information is higher than the priority of the second indication information, or the priority of the TAG associated with the first preamble code is higher than the priority of the TAG associated with the TA value, the terminal determines the implementation scheme of the TAG corresponding to the TA value. It can refer to the scheme for determining the TAG corresponding to the TA value when the first information includes the first indication information in the above embodiment. For the sake of brevity of description, it will not be repeated here.

[0252] In some embodiments, if the priority of the second indication information is higher than the priority of the first indication information, or the priority of the TAG associated with the TA value is higher than the priority of the TAG associated with the first preamble code, the terminal determines the implementation scheme of the TAG corresponding to the TA value. It can refer to the scheme for determining the TAG corresponding to the TA value when the first information includes the second indication information in the above embodiment. For the sake of brevity of description, it will not be repeated here.

[0253] In some embodiments, a TAG ID may be introduced into the feedback information to indicate two TAGs associated with the M-TRP.

[0254] For example, assuming that the two tags associated with the M-TRP include TAG1 and TAG2, if the TAG ID is 0, it indicates that the M-TRP is associated with TAG1, and if the TAG ID is 1, it indicates that the M-TRP is associated with TAG2. Alternatively, if the TAG ID is 1, it indicates that the M-TRP is associated with TAG1, and if the TAG ID is 0, it indicates that the M-TRP is associated with TAG2.

[0255] In some embodiments, if the first information includes first indication information, and the association relationship between the preamble code indicated by the first indication information and the TAG is included in the RRC configuration, the feedback information includes a TA value and a TAG ID, and the terminal 101 determines that the TAG corresponding to the TA value is the TAG associated with the preamble code, and the TAG is consistent with the TAG indicated by the TAG ID included in the feedback information.

[0256] Exemplarily, if the preamble code 1 indicated in the RRC configuration information is associated with TAG1, and the feedback information includes a TA value of 1 and a TAG ID of 0 (indicating that M-TRP is associated with TAG1), the terminal 101 determines that the TAG corresponding to the TA value 1 is the preamble code associated TAG1, that is, the TA value 1 is used for the preamble code associated TAG1.

[0257] In some embodiments, if the first information includes first indication information, and the association relationship between the preamble code indicated by the first indication information and the TAG is included in the PDCCH command, the feedback information includes a TA value and a TAG ID, the terminal 101 determines that the TAG corresponding to the TA value is the TAG associated with the preamble code, and the TAG is consistent with the TAG indicated by the TAG ID included in the feedback information.

[0258] For example, if the preamble code 2 indicated in the PDCCH command is associated with TAG2, and the feedback information includes a TA value of 1 and a TAG ID of 1 (indicating that M-TRP is associated with TAG2), the terminal 101 determines that the TAG corresponding to the TA value 1 is the preamble code associated TAG2, that is, the TA value 1 is used for the preamble code associated TAG2.

[0259] In some embodiments, if the first information includes second indication information, the feedback information includes a TA value and a TAG ID, as well as a TAG associated with the TA value, the terminal 101 determines that the TAG corresponding to the TA value is the TAG associated with the TA value, which is consistent with the TAG indicated by the TAG ID included in the feedback information.

[0260] For example, if the feedback information includes a TA value of 1 and a TAG ID of 1 (indicating that M-TRP is associated with TAG2), and the TAG associated with the TA value is TAG2 indicated by the TAG ID, the terminal 101 determines that the TAG corresponding to the TA value 1 is the TAG2 associated with the preamble code, that is, the TA value 1 is used for the TAG2 associated with the preamble code.

[0261] In some embodiments, 1 bit may be used to indicate the TAG ID.

[0262] For example, if the feedback information is Msg2 RAR, after the TAG ID is introduced into the information, the specific structure can be seen in Table 1 below:

[0263] Table 1

[0264] For example, if the feedback information is Msg2 RAR, after the TAG ID is introduced into the information, the specific structure can be seen in Table 2 below:

[0265] Table 2

[0266] For example, if the feedback information is Msg2 RAR, after the TAG ID is introduced into the information, the specific structure can be seen in Table 3 below:

[0267] Table 3

[0268] For example, if the feedback information is included in the TAC MAC CE, after the TAG ID is introduced into the TAC MAC CE, the specific structure can be seen in Table 4 below:

[0269] Table 4

[0270] In some embodiments, determining can be interpreted as judging, calculating, computing, processing, deriving, ascertaining, selecting, choosing, comparing, “assuming,” “expecting,” “considering,” broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, etc., but is not limited to.

[0271] The method involved in the embodiments of the present disclosure may include at least one of steps S201 to S204. For example, step S204 can be implemented as an independent embodiment, steps S201 and S204 can be implemented as independent embodiments, steps S202 and S203 can be implemented as independent embodiments, steps S201, S202, S203, and S204 can be implemented as independent embodiments, and steps S203 and S204 can be implemented as independent embodiments, but are not limited thereto.

[0272] In some embodiments, steps S201 and S202 may be performed in an interchangeable order or simultaneously.

[0273] In some embodiments, steps S202 and S203 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0274] In some embodiments, step S201 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0275] FIG3a is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG3a , the communication method can be executed by the terminal 101, and the method includes:

[0276] S301: Obtain at least one of second information and third information.

[0277] The optional implementation of step S301 can refer to the optional implementation of step S201 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0278] In some embodiments, the terminal 101 receives at least one of the second information and the third information sent by the network device 102, but is not limited thereto and may also receive at least one of the second information and the third information sent by other entities, protocols or higher layers.

[0279] In some embodiments, "obtain", "get", "obtain", "receive", "transmit", "bidirectional transmission", "send and / or receive" can be interchangeable, and can be interpreted as receiving from other entities, obtaining from a protocol, obtaining by self-processing, autonomous implementation, etc.

[0280] In some embodiments, the terminal 101 receives information related to the RRC configuration sent by the network device 102, for example, RRC configuration information, where the RRC configuration information includes first indication information for indicating an association relationship between the preamble code and the TAG.

[0281] In some embodiments, the terminal 101 receives downlink information sent by the network device 102, for example, a PDCCH command, where the PDCCH command includes first indication information for indicating an association relationship between a preamble code and a TAG.

[0282] S302: Send a first preamble code.

[0283] In some embodiments, the first preamble is sent to the network device 102, but is not limited thereto. The first preamble may also be sent to other entities.

[0284] The optional implementation of step S302 can refer to the optional implementation of step S202 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0285] S303: Receive feedback information corresponding to the first preamble code.

[0286] In some embodiments, feedback information corresponding to the first preamble code sent by the network device 102 is received, but not limited thereto. Feedback information corresponding to the first preamble code sent by other entities may also be received.

[0287] The optional implementation of step S303 can refer to the optional implementation of step S203 in FIG. 2 and other related parts in the embodiment involved in FIG. 2 , which will not be described in detail here.

[0288] In some embodiments, the feedback information includes second indication information for indicating TAG information associated with the TA value.

[0289] S304: Determine a TAG corresponding to the TA value in the feedback information according to at least one of the second information, the third information, and the feedback information.

[0290] The optional implementation of step S304 can refer to the optional implementation of step S204 in FIG. 2 and other related parts in the embodiment involved in FIG. 2 , which will not be described in detail here.

[0291] The method involved in the embodiments of the present disclosure may include at least one of steps S301 to S304. For example, step S304 can be implemented as an independent embodiment, steps S301 and S304 can be implemented as independent embodiments, steps S302 and S303 can be implemented as independent embodiments, steps S301, S302, S303, and S304 can be implemented as independent embodiments, and steps S303 and S304 can be implemented as independent embodiments, but are not limited thereto.

[0292] In some embodiments, steps S301 and S302 may be performed in an interchangeable order or simultaneously.

[0293] In some embodiments, steps S302 and S303 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0294] In some embodiments, step S301 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0295] FIG3b is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG3b , the communication method can be executed by the terminal 101, and the method includes:

[0296] S311. Obtain first information.

[0297] The first information includes at least one of first indication information and second indication information, wherein the first indication information is used to indicate the association relationship between the preamble code and the TAG, and the second indication information is used to indicate TAG information associated with the TA value.

[0298] The optional implementation of step S311 can refer to step S201 in Figure 2, the optional implementation of step S301 in Figure 3a, and other related parts in the embodiments involved in Figures 2 and 3a, which will not be repeated here.

[0299] Alternatively, the optional implementation of step S311 can refer to step S203 in Figure 2, the optional implementation of step S303 in Figure 3a, and other related parts in the embodiments involved in Figures 2 and 3a, which will not be repeated here.

[0300] In some embodiments, the first indication information is included in at least one of the second information and the third information, wherein the second information is information for establishing a network connection, and the third information is information for triggering a random access procedure;

[0301] The second indication information is included in the feedback information corresponding to the first preamble, wherein the first preamble is a preamble in the preamble indicated by the preamble identifier included in the third information.

[0302] In some embodiments, the first preamble is a preamble indicated by a preamble identifier included in the third information.

[0303] In some embodiments, the TAG information associated with the TA value may be indicated in any of the following ways:

[0304] Indicates one or more tags associated with a TA value;

[0305] Indicates one or more tags associated with each TA value in multiple TA values.

[0306] S312. Determine a TAG corresponding to the TA value according to the first information.

[0307] In some embodiments, the first information includes the second indication information. If the feedback information includes a TAG associated with the TA value, step S312 may include: determining that the TAG corresponding to the TA value is the TAG included in the feedback information.

[0308] In some embodiments, the feedback information further includes fourth information corresponding to the TA value, where the fourth information is used to indicate one TAG among multiple TAGs associated with the TA value.

[0309] In some embodiments, the first information includes the second indication information. If the feedback information includes multiple tags associated with the TA value, step S312 may include: determining that the TAG corresponding to the TA value is the TAG indicated by the fourth information.

[0310] In some embodiments, the first information includes first indication information. If the association relationship between the preamble code and the TAG indicated by the first indication information includes the first preamble code being associated with a TAG, step S312 may include: determining that the TAG corresponding to the TA value is the TAG associated with the preamble code.

[0311] In some embodiments, the feedback information further includes fifth information corresponding to the TA value, where the fifth information is used to indicate one of the multiple TAGs associated with the preamble code.

[0312] In some embodiments, the first information includes first indication information. If the association relationship between the preamble code and the TAG indicated by the first indication information includes the first preamble code being associated with multiple TAGs, step S312 may include: determining that the TAG corresponding to the TA value is the TAG indicated by the fifth information.

[0313] In some embodiments, the third information further includes information for indicating a TAG identifier, and the TAG identifier is indicated in any of the following ways:

[0314] Use a 2-bit field to indicate all TAG identifiers;

[0315] A 1-bit field is used to indicate one of the two TAG identifiers associated with the M-TRP;

[0316] Use a multi-bit field to indicate all TAG identifiers;

[0317] A 2-bit field is used to indicate the two TAG identifiers associated with the M-TRP.

[0318] In some embodiments, the feedback information is a random access response message, or the feedback information is included in a timing advance command medium access control element.

[0319] Exemplarily, the random access response message includes any one of the following information: 4-step RACH Msg2 RAR, 2-step RACH, MsgB fallback RAR, 2-step RACH MsgB success RAR.

[0320] In some embodiments, the following steps may be further included before step S312:

[0321] S310, sending a first preamble;

[0322] S313: Receive feedback information corresponding to the first preamble code, where the feedback information includes a TA value.

[0323] The optional implementation of step S310 can refer to step S202 in FIG. 2 , the optional implementation of step S302 in FIG. 3 a , and other related parts in the embodiments involved in FIG. 2 and FIG. 3 a , which will not be described in detail here.

[0324] The optional implementation of step S313 can refer to step S203 in FIG. 2 , the optional implementation of step S303 in FIG. 3 a , and other related parts in the embodiments involved in FIG. 2 and FIG. 3 a , which will not be described in detail here.

[0325] The method involved in the embodiments of the present disclosure may include at least one of steps S310 to S313. For example, step S312 can be implemented as an independent embodiment, steps S311 and S312 can be implemented as independent embodiments, steps S310 and S313 can be implemented as independent embodiments, steps S311, S310, S313, and S312 can be implemented as independent embodiments, and steps S313 and S312 can be implemented as independent embodiments, but are not limited thereto.

[0326] In some embodiments, steps S311 and S310 may be performed in an interchanged order or simultaneously.

[0327] In some embodiments, steps S310 and S313 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0328] In some embodiments, step S311 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0329] FIG3c is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG3c, the communication method can be executed by the terminal 101, and the method includes:

[0330] S321. Obtain first information.

[0331] The first information includes first indication information and second indication information, wherein the first indication information is used to indicate the association relationship between the preamble code and the TAG, and the second indication information is used to indicate the TAG information associated with the TA value.

[0332] The optional implementation of step S321 can refer to steps S201 and S203 in Figure 2, the optional implementation of steps S301 and S303 in Figure 3a, and other related parts in the embodiments involved in Figures 2 and 3a, which will not be repeated here.

[0333] S322: Determine the TAG corresponding to the TA value according to the priority.

[0334] In some embodiments, the priority may be specified by a protocol, a network configuration, a high-level configuration, or a terminal setting, and this application does not impose any limitation on this.

[0335] In some embodiments, if the priority of the first indication information is higher than the priority of the second indication information, or the priority of the TAG associated with the first preamble code is higher than the priority of the TAG associated with the TA value, then the implementation scheme of step S322 can refer to step S204 of Figure 2. In the optional implementation method of step S304 of Figure 3a, the first information includes the scheme for determining the TAG corresponding to the TA value when the first indication information is included, and other related parts in the embodiments involved in Figures 2 and 3a are not repeated here for the sake of brevity.

[0336] In some embodiments, if the priority of the second indication information is higher than the priority of the first indication information, or the priority of the TAG associated with the TA value is higher than the priority of the TAG associated with the first preamble code, the implementation scheme of step S322 can refer to step S204 of Figure 2, the optional implementation method of step S304 of Figure 3a, the scheme for determining the TAG corresponding to the TA value when the first information includes the second indication information, and other related parts in the embodiments involved in Figures 2 and 3a, for the sake of brevity of description, they will not be repeated here.

[0337] FIG3 d is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG3 d , the communication method can be executed by the terminal 101, and the method includes:

[0338] S331. Determine TAG.

[0339] In some embodiments, the TAG to which the TA value corresponds is determined.

[0340] In some embodiments, the TAG is determined based on the first information.

[0341] In some embodiments, the TAG corresponding to the TA value is determined according to the first information.

[0342] For optional implementations of step S331, please refer to the optional implementations of step S204 in Figure 2, step S304 in Figure 3a, step S312 in Figure 3b, step S322 in Figure 3c, and other related parts in the embodiments involved in Figures 2 and 3a-3c, which will not be repeated here.

[0343] FIG4a is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG4b , the method according to the embodiment of the present disclosure is executed by the network device 102, and the method includes:

[0344] S401. Send at least one of the second information and the third information.

[0345] The optional implementation of step S401 can refer to the optional implementation of step S201 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0346] In some embodiments, at least one of the second information and the third information is sent to the terminal 101, but is not limited thereto. At least one of the second information and the third information may also be sent to other entities.

[0347] S402: Receive a first preamble code.

[0348] In some embodiments, the first preamble code sent by the receiving 101 is received, but not limited thereto, and the first preamble code sent by other entities may also be received.

[0349] The optional implementation of step S402 can refer to the optional implementation of step S202 in Figure 2, the optional implementation of step S302 in Figure 3a, and other related parts in the embodiments involved in Figures 2 and 3a, which will not be repeated here.

[0350] S403: Send feedback information corresponding to the first preamble code.

[0351] In some embodiments, the feedback information corresponding to the first preamble code is sent to the terminal 101, but is not limited thereto. The feedback information corresponding to the first preamble code may also be sent to other entities.

[0352] The optional implementation of step S303 can refer to the optional implementation of step S203 in Figure 2, the optional implementation of step S303 in Figure 3a, and other related parts in the embodiments involved in Figures 2 and 3a, which will not be repeated here.

[0353] In some embodiments, steps S401 and S402 may be performed in an interchangeable order or simultaneously.

[0354] The method involved in the embodiments of the present disclosure may include at least one of steps S401 to S403. For example, step S401 may be implemented as an independent embodiment, steps S402 and S403 may be implemented as independent embodiments, and steps S401, S402, and S403 may be implemented as independent embodiments, but are not limited thereto.

[0355] In some embodiments, steps S402 and S403 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0356] FIG4 b is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG4 b , the method according to the embodiment of the present disclosure is executed by the network device 102, and the method includes:

[0357] Step S411: Send the first information.

[0358] The first information includes at least one of first indication information and second indication information, wherein the first indication information is used to indicate the association relationship between the preamble code and the TAG, and the second indication information is used to indicate TAG information associated with the TA value.

[0359] The optional implementation of step S411 can refer to the optional implementation of step S201 in Figure 2, step S301 in Figure 3a, step S311 in Figure 3b, step S321 in Figure 3c, and other related parts in the embodiments involved in Figure 2 and Figures 3a to 3c, which will not be repeated here.

[0360] Alternatively, the optional implementation of step S411 can refer to the optional implementation of step S203 in Figure 2, step S303 in Figure 3a, step S311 in Figure 3b, step S321 in Figure 3c, and other related parts in the embodiments involved in Figure 2 and Figures 3a to 3c, which will not be repeated here.

[0361] In some embodiments, the access network device 102 sends the first information to the terminal 101, but is not limited thereto and may also send the first information to other entities.

[0362] Optionally, the first information is used by the terminal 101 to determine the TAG corresponding to the TA value. Optional implementations thereof can be found in the optional implementations of step S204 in FIG2 and other related parts of the embodiment involved in FIG2 , which will not be described in detail here.

[0363] In some embodiments, the first indication information is included in at least one of the second information and the third information;

[0364] The second indication information is included in feedback information corresponding to the first preamble, wherein the first preamble is a preamble in the preamble indicated by a preamble identifier included in the third information.

[0365] In some embodiments, the indication method of the TAG information associated with the TA value includes any one of the following:

[0366] Indicates one or more tags associated with a TA value;

[0367] Indicates one or more tags associated with each TA value in multiple TA values.

[0368] In some embodiments, the first information includes the second indication information, and the feedback information includes a TAG associated with the TA value, and the TAG included in the feedback information is determined to be the TAG corresponding to the TA value.

[0369] In some embodiments, the feedback information further includes fourth information, where the fourth information is used to indicate one TAG among multiple TAGs associated with the TA value.

[0370] In some embodiments, the first information includes the second indication information, and the feedback information includes multiple tags associated with the TA value, and the TAG indicated by the fourth information is determined to be the TAG corresponding to the TA value.

[0371] In some embodiments, the first information includes the first indication information, and the association relationship between the preamble code and the TAG indicated by the first indication information is that the preamble code is associated with one TAG, and the TAG associated with the preamble code is determined to be the TAG corresponding to the TA value.

[0372] In some embodiments, the feedback information further includes fifth information corresponding to the TA value, where the fifth information is used to indicate one of a plurality of TAGs associated with the preamble code.

[0373] In some embodiments, the first information includes the first indication information, and the association relationship between the preamble code indicated by the first indication information and the TAG is that the preamble code is associated with multiple TAGs, and the TAG indicated by the fifth information is determined to be the TAG corresponding to the TA value.

[0374] In some embodiments, the first information includes the first indication information and the second indication information, and the TAG corresponding to the TA value is determined according to a priority.

[0375] In some embodiments, the PDCCH command further includes information for indicating a TAG identifier, and the TAG identifier is indicated in any of the following ways:

[0376] Use a 2-bit field to indicate all TAG identifiers;

[0377] A 1-bit field is used to indicate one of the two TAG identifiers associated with the M-TRP;

[0378] Use a multi-bit field to indicate all TAG identifiers;

[0379] A 2-bit field is used to indicate the two TAG identifiers associated with the M-TRP.

[0380] In some embodiments, the following steps may also be included:

[0381] S412, receiving a first preamble;

[0382] S413: Send feedback information corresponding to the first preamble code, where the feedback information carries a TA value.

[0383] In some embodiments, the second indication information is included in feedback information corresponding to the first preamble code.

[0384] In some embodiments, the feedback information is a random access response message, and the feedback information is included in a timing advance command medium access control-control element.

[0385] The optional implementation of step S412 can refer to step S202 in FIG. 2 , the optional implementation of step S302 in FIG. 3 a , and other related parts in the embodiments involved in FIG. 2 and FIG. 3 a , which will not be described in detail here.

[0386] The optional implementation of step S413 can refer to step S203 in FIG. 2 , the optional implementation of step S303 in FIG. 3 a , and other related parts in the embodiments involved in FIG. 2 and FIG. 3 a , which will not be described in detail here.

[0387] FIG5 is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG5 , the method according to the embodiment of the present disclosure is used in a communication system 100, and the method includes:

[0388] Step S501: The network device sends first information to the terminal.

[0389] For the optional implementation of step S501, please refer to step S201 in Figure 2, step S301 in Figure 3a, step S311 in Figure 3b, step S321 in Figure 3c, step S401 in Figure 4a, and the optional implementation of step S411 in Figure 4b, as well as other related parts in the embodiments involved in Figure 2, Figures 3a to 3c, and Figures 4a and 4b, which will not be repeated here.

[0390] Alternatively, the optional implementation method of step S501 can refer to step S203 of Figure 2, step S303 of Figure 3a, step S313 of Figure 3b, step S321 of Figure 3c, step S403 of Figure 4a, and the optional implementation method of step S411 of Figure 4b, as well as other related parts in the embodiments involved in Figure 2, Figures 3a to 3c, and Figures 4a and 4b, which will not be repeated here.

[0391] Step S502: The terminal determines the TAG corresponding to the TA value according to the acquired first information.

[0392] For optional implementations of step S502, please refer to the optional implementations of step S204 in Figure 2, step S304 in Figure 3a, step S312 in Figure 3b, step S322 in Figure 3c, and step S331 in Figure 3d, as well as other related parts in the embodiments involved in Figures 2 and 3a to 3d, which will not be repeated here.

[0393] In some embodiments, the above method may include the method described in the above embodiments of the communication system side, terminal side, network equipment side, core network equipment side, etc., which will not be repeated here.

[0394] The present disclosure also provides an optional implementation scheme, in which the terminal uses the received TA value for the corresponding TAG according to the association relationship between the TAG and the TA value or preamble indicated by the network.

[0395] In some embodiments, the indication of the "association between the TAG and the TA value or preamble" includes any of the following:

[0396] Method 1: RRC configures the association between preamble and TAG.

[0397] In some embodiments, the association relationship between the preamble and the tag includes: one preamble is associated with one or more tags, for example: preamble#1 can be associated with two tags at the same time.

[0398] In some embodiments, the association relationship between the preamble and the TAG includes: each preamble in the plurality of preambles is associated with one or more TAGs.

[0399] In some embodiments, “using the received TA value for the corresponding TAG” can be achieved by the following steps:

[0400] Step 11: RRC configures the association between preamble and TAG.

[0401] Step 12: The terminal sends preamble #1 (which may correspond to the first preamble code mentioned above) according to the preamble identifier indicated by the PDCCH order.

[0402] In some embodiments, the PDCCH order indicates the preamble identifier through a random access preamble index (Random Access Preamble index).

[0403] Step 13: The terminal receives feedback information corresponding to preamble #1.

[0404] In some embodiments, the feedback information may be a Random Access Response (RAR) message, which may include any of the following:

[0405] 4-step RACH Msg2 RAR;

[0406] 2-step RACHMsgB fallbackRAR;

[0407] 2-step RACH MsgB successRAR.

[0408] In some embodiments, the feedback information may be included in a Timing Advance Command MAC CE (TAC MAC CE).

[0409] Step 14: The terminal uses the TA value in the feedback information for the TAG associated with preamble #1.

[0410] In some embodiments, according to the method of associating the preamble with the TAG, the terminal applies the TA value in any of the following ways:

[0411] Method 1: If one preamble is associated with one TAG, the terminal uses the TA value included in the feedback information corresponding to preamble #1 for the TAG associated with the preamble.

[0412] Method 2: If one preamble is associated with multiple tags, based on the tag indication information corresponding to the TA value contained in the "feedback information corresponding to preamble #1", the terminal uses the TA value contained in the feedback information corresponding to preamble #1 for the tag indicated by the "TAG indication information".

[0413] Mode 2: PDCCH order indicates the association between preamble and TAG.

[0414] In some embodiments, the association relationship between the preamble and the tag includes: one preamble is associated with one or more tags, for example: preamble#1 can be associated with two tags at the same time.

[0415] In some embodiments, the association relationship between the preamble and the TAG includes: each preamble in the plurality of preambles is associated with one or more TAGs.

[0416] In some embodiments, “using the received TA value for the corresponding TAG” can be achieved by the following steps:

[0417] Step 21: The terminal sends preamble #1 (which may correspond to the first preamble code mentioned above) according to the preamble identifier indicated by the PDCCH order.

[0418] In some embodiments, the PDCCH order indicates the preamble identifier through a random access preamble index (Random Access Preamble index).

[0419] In some embodiments, the PDCCH order also indicates the TAG identifier through the TAD ID.

[0420] In some embodiments, the manner in which the PDCCH order indicates the TAG identifier includes any one of the following:

[0421] Method 2-1: Use a 2-bit field to indicate all TAG IDs;

[0422] Mode 2-2: Use a 1-bit field to indicate one of the two TAG IDs associated with the M-TRP;

[0423] Mode 2-3: Use multiple bit fields to indicate multiple TAG IDs. For example, use a 4-bit field to indicate two complete TAG IDs, or use a 2-bit field to indicate two TAG IDs associated with the M-TRP.

[0424] Step 22: The terminal receives feedback information corresponding to preamble #1.

[0425] In some embodiments, the feedback information may be a Random Access Response (RAR) message, which may include any of the following:

[0426] 4-step RACH Msg2 RAR;

[0427] 2-step RACHMsgB fallbackRAR;

[0428] 2-step RACH MsgB successRAR.

[0429] In some embodiments, the feedback information may be included in a Timing Advance Command MAC CE (TAC MAC CE).

[0430] Step 23: The terminal uses the TA value in the feedback information for the TAG associated with preamble #1.

[0431] In some embodiments, according to the method of associating the preamble with the TAG, the terminal applies the TA value in any of the following ways:

[0432] Method 1: If one preamble is associated with one TAG, the terminal uses the TA value included in the feedback information corresponding to preamble #1 for the TAG associated with the preamble.

[0433] Method 2: If one preamble is associated with multiple tags, based on the tag indication information corresponding to the TA value contained in the "feedback information corresponding to preamble #1", the terminal uses the TA value contained in the feedback information corresponding to preamble #1 for the tag indicated by the "TAG indication information".

[0434] Mode 3: The feedback information corresponding to preamble#1 indicates the TAG information corresponding to the TA value.

[0435] If the TAG associated with preamble #1 is not indicated in the RRC configuration or PDCCH order, or the association relationship between the preamble and TAG indicated in the RRC configuration or PDCCH order does not include the TAG associated with preamble #1, the TAG information corresponding to the TA value is indicated in the feedback information corresponding to preamble #1.

[0436] In some embodiments, “using the received TA value for the corresponding TAG” can be achieved by the following steps:

[0437] Step 31: The terminal sends preamble #1 (which may correspond to the first preamble code mentioned above) according to the preamble identifier indicated by the PDCCH order.

[0438] In some embodiments, the PDCCH order indicates the preamble identifier through a random access preamble index (Random Access Preamble index).

[0439] Step 32: The terminal receives feedback information corresponding to preamble #1.

[0440] In some embodiments, the feedback information may be a Random Access Response (RAR) message, which may include any of the following:

[0441] 4-step RACH Msg2 RAR;

[0442] 2-step RACHMsgB fallbackRAR;

[0443] 2-step RACH MsgB successRAR.

[0444] In some embodiments, the feedback information may be included in a Timing Advance Command MAC CE (TAC MAC CE).

[0445] Step 33: According to the TAG information indicated by the feedback information, the terminal uses the TA value in the feedback information for the TAG indicated by the feedback information.

[0446] For at least one of the above-mentioned methods 1, 2, and 3, the TAG information corresponding to the TA value may be included in the "feedback information corresponding to preamble #1".

[0447] In some embodiments, the indication method of the "TAG information corresponding to the TA value" includes any one of the following:

[0448] Method 1: One "feedback information corresponding to preamble #1" contains one TA value, which can be associated with one or more tags.

[0449] Method 2: One "feedback information corresponding to preamble #1" includes multiple TA values ​​(eg, two TA values), wherein each TA value can be associated with one or more TAGs.

[0450] In some embodiments, if one TA value is associated with multiple TAGs, according to the TAG indication information corresponding to the TA value contained in the "feedback information corresponding to preamble#1", the terminal uses the TA value contained in the feedback information corresponding to the preamble#1 for the TAG indicated by the "TAG indication information".

[0451] 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 a terminal in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0452] 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), and the functions of some or all of the above units or modules are realized by designing the logical relationship of the elements in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be implemented by a programmable logic device (PLD), taking a field programmable gate array (FPGA) as an example, which can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by a configuration file, thereby realizing the functions of some or all of the above units or modules.

[0453] All units or modules of the above devices can be implemented in the form of software called by the processor, or in the form of hardware circuits, or partially implemented in the form of software called by the processor, and the remaining part implemented in the form of hardware circuits. In the embodiment 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 hardware circuit is fixed or reconfigurable, such as a hardware circuit implemented by a processor as 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 to implement 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 ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0454] Figure 6a is a first structural diagram of an apparatus for determining a timing advance according to an embodiment of the present disclosure. As shown in Figure 6a, the apparatus 610 includes a processing module 611 configured to determine a timing advance group (TAG) corresponding to a timing advance value (TA) based on first information; the first information includes at least one of first indication information and second indication information, wherein the first indication information indicates an association between a preamble and a TAG, and the second indication information indicates TAG information associated with the TA value.

[0455] Optionally, the processing module is configured to execute steps related to determining the TAG corresponding to the TA value, which are executed by the terminal 101 in any of the above methods, for example, step 204 shown in FIG. 2 , which will not be described in detail here.

[0456] Optionally, the device 610 also includes a first transceiver module 612, which is configured to execute the steps related to sending a first preamble code and receiving feedback information corresponding to the first preamble code performed by the terminal 101 in any of the above methods, for example: at least one of steps 201-203 shown in Figure 2, which will not be repeated here.

[0457] Figure 6b is a second schematic diagram of the structure of an apparatus for determining a timing advance according to an embodiment of the present disclosure. As shown in Figure 6b, the apparatus 620 includes a second transceiver module 621 configured to send first information to a terminal, the first information including at least one of first indication information and second indication information, wherein the first indication information indicates an association between a preamble and a tag, and the second indication information indicates tag information associated with a TA value.

[0458] Optionally, the second transceiver module is configured to execute steps related to sending the first information executed by the network device 102 in any of the above methods, for example, step 201 shown in FIG. 2 , which will not be repeated here.

[0459] Optionally, the above-mentioned second transceiver module is also configured to execute the steps related to receiving the first preamble code and sending feedback information corresponding to the first preamble code performed by the network device 102 in any of the above methods, for example: at least one of steps 202 and 203 shown in Figure 2, which will not be repeated here.

[0460] Optionally, the apparatus 620 may further include a processing module configured to execute configuration of an association relationship between a TA value or a preamble and a TAG.

[0461] Figure 7a is a schematic diagram of the structure of a communication device 7100 proposed in an embodiment of the present disclosure. Communication device 7100 can be a network device (e.g., an access network device, a core network device, etc.), a terminal (e.g., a user equipment, etc.), a chip, a chip system, or a processor that supports a network device to implement any of the above methods, or a chip, a chip system, or a processor that supports a terminal to implement any of the above methods. Communication device 7100 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.

[0462] As shown in Figure 7a, the communication device 7100 includes one or more processors 7101. The processor 7101 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, baseband chip, terminal device, terminal device chip, DU or CU, etc.), execute programs, and process program data. The processor 7101 is used to call instructions to enable the communication device 7100 to perform any of the above methods.

[0463] In some embodiments, the communication device 7100 further includes one or more memories 7102 for storing instructions. Optionally, all or part of the memories 7102 may be located outside the communication device 7100.

[0464] In some embodiments, the communication device 7100 further includes one or more transceivers 7103. When the communication device 7100 includes one or more transceivers 7103, the communication steps such as sending and receiving in the above method are performed by the transceiver 7103, and the other steps are performed by the processor 7101.

[0465] In some embodiments, a transceiver may include a receiver and a transmitter, which 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.

[0466] Optionally, the communication device 7100 further includes one or more interface circuits 7104, which are connected to the memory 7102. The interface circuits 7104 may be configured to receive signals from the memory 7102 or other devices, and may be configured to send signals to the memory 7102 or other devices. For example, the interface circuits 7104 may read instructions stored in the memory 7102 and send the instructions to the processor 7101.

[0467] The communication device 7100 described in the above embodiment may be a network device or a terminal, but the scope of the communication device 7100 described in the embodiment of the present disclosure is not limited thereto, and the structure of the communication device 7100 may not be limited by FIG. 7a. 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 and 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.

[0468] FIG7 b is a schematic diagram of the structure of a chip 7200 according to an embodiment of the present disclosure. If the communication device 7100 can be a chip or a chip system, reference can be made to the schematic diagram of the structure of the chip 7200 shown in FIG7 b , but the present disclosure is not limited thereto.

[0469] The chip 7200 includes one or more processors 7201 , and the processor 7201 is used to call instructions so that the chip 7200 executes any of the above methods.

[0470] In some embodiments, chip 7200 further includes one or more interface circuits 7202, which are connected to memory 7203. Interface circuit 7202 can be used to receive signals from memory 7203 or other devices, and can be used to send signals to memory 7203 or other devices. For example, interface circuit 7202 can read instructions stored in memory 7203 and send the instructions to processor 7201. Optionally, the terms interface circuit, interface, transceiver pin, and transceiver are interchangeable.

[0471] In some embodiments, the chip 7200 further includes one or more memories 7203 for storing instructions. Alternatively, all or part of the memories 7203 may be located outside the chip 7200.

[0472] The embodiments of the present disclosure further provide a storage medium having instructions stored thereon. When the instructions are executed on the communication device 7100, the communication device 7100 executes 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.

[0473] The present disclosure also provides a program product, which, when executed by the communication device 7100, enables the communication device 7100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0474] 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.

[0475] The technical solutions described in the embodiments of the present disclosure can be arbitrarily combined without conflict.

[0476] Other embodiments of the present invention will readily occur to those skilled in the art after considering the specification and practicing the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the invention that follow from the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the invention being indicated by the following claims.

[0477] It should be understood that the present invention is not limited to the exact construction described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A communication method, characterized in that: include: Determine, according to the first information, a timing advance group TAG corresponding to the timing advance TA value; The first information includes at least one of first indication information and second indication information, wherein the first indication information is used to indicate the association relationship between the preamble code and the TAG, and the second indication information is used to indicate the TAG information associated with the TA value.

2. The method according to claim 1, characterized in that The first indication information is included in at least one of the second information and the third information, wherein the second information is information for establishing a network connection, and the third information is information for triggering a random access process; The second indication information is included in feedback information corresponding to the first preamble code, wherein the first preamble code is a preamble code in the preamble code indicated by the preamble code identifier included in the third information.

3. The method according to claim 1 or 2, characterized in that: The indication method of the TAG information associated with the TA value includes any of the following: Indicates one or more TAGs associated with a TA value; Indicates one or more TAGs associated with each TA value in multiple TA values.

4. The method according to claim 2 or 3, characterized in that: The first information includes the second indication information, and the determining the TAG corresponding to the TA value includes: The feedback information includes a TAG associated with the TA value, and it is determined that the TAG corresponding to the TA value is the TAG included in the feedback information.

5. The method according to claim 2 or 3, characterized in that: The feedback information also includes fourth information, where the fourth information is used to indicate one TAG among the multiple TAGs associated with the TA value.

6. The method according to claim 5, characterized in that The first information includes the second indication information, and the determining the TAG corresponding to the TA value includes: The feedback information includes multiple TAGs associated with the TA value, and it is determined that the TAG corresponding to the TA value is the TAG indicated by the fourth information.

7. The method according to claim 1 or 2, characterized in that: The first information includes the first indication information, and the determining the TAG corresponding to the TA value includes: The association relationship between the preamble code and the TAG includes that the first preamble code is associated with a TAG, and the TAG corresponding to the TA value is determined to be the TAG associated with the first preamble code.

8. The method according to claim 1 or 2, characterized in that: The feedback information also includes fifth information, where the fifth information is used to indicate one TAG among multiple TAGs associated with the first preamble code.

9. The method according to claim 8, characterized in that The first information includes the first indication information, and the determining the TAG corresponding to the TA value includes: The association relationship between the preamble code and the TAG includes that the first preamble code is associated with multiple TAGs, and it is determined that the TAG corresponding to the TA value is the TAG indicated by the fifth information.

10. The method according to any one of claims 1 to 9, characterized in that The first information includes the first indication information and the second indication information, and the determining the TAG corresponding to the TA value includes: According to the priority, the TAG corresponding to the TA value is determined.

11. The method according to any one of claims 2 to 10, characterized in that: The third information also includes information for indicating the TAG identifier, and indicates the TAG identifier in any of the following ways: Use a 2-bit field to indicate all TAG identifiers; A 1-bit field is used to indicate one of the two TAG identifiers associated with the multiple transmission and reception point M-TRP; Use a multi-bit field to indicate all TAG identifiers; A 2-bit field is used to indicate two TAG identifiers associated with the M-TRP.

12. The method according to claims 1-11, characterized in that Also includes: Sending a first preamble; Feedback information corresponding to the first preamble code is received, where the feedback information includes the TA value.

13. A communication method, characterized in that: Applied to network equipment, including: Sending first information, wherein the first information includes at least one of first indication information and second indication information, wherein the first indication information is used to indicate an association relationship between a preamble code and a TAG, and the second indication information is used to indicate TAG information associated with a TA value.

14. The method according to claim 13, characterized in that The first indication information and the second indication information are sent through different signaling.

15. The method according to claim 14, characterized in that The first indication information is included in at least one of the second information and the third information, wherein the second information is information for establishing a network connection, and the third information is information for triggering a random access process; The second indication information is included in feedback information corresponding to the first preamble code, wherein the first preamble code is a preamble code in the preamble code indicated by the preamble code identifier included in the third information.

16. The method according to any one of claims 13 to 15, characterized in that The indication method of the TAG information associated with the TA value includes any of the following: Indicates one or more TAGs associated with a TA value; Indicates one or more TAGs associated with each TA value in multiple TA values.

17. The method according to any one of claims 13 to 16, characterized in that The first information includes the second indication information, and the feedback information includes a TAG associated with the TA value, and the TAG included in the feedback information is determined to be the TAG corresponding to the TA value.

18. The method according to any one of claims 13 to 16, characterized in that: The feedback information also includes fourth information, where the fourth information is used to indicate one TAG among the multiple TAGs associated with the TA value.

19. The method according to claim 18, characterized in that The first information includes the second indication information, and the feedback information includes multiple TAGs associated with the TA value, and the TAG indicated by the fourth information is determined to be the TAG corresponding to the TA value.

20. The method according to any one of claims 13 to 15, characterized in that The first information includes the first indication information, and the association relationship between the preamble code and the TAG indicated by the first indication information includes that the first preamble code is associated with one TAG, and the TAG associated with the first preamble code is determined to be the TAG corresponding to the TA value.

21. The method according to any one of claims 13 to 15, characterized in that The feedback information also includes fifth information corresponding to the TA value, where the fifth information is used to indicate one TAG among multiple TAGs associated with the first preamble code.

22. The method according to claim 21, characterized in that The first information includes the first indication information, and the association relationship between the preamble code and the TAG indicated by the first indication information includes that the first preamble code is associated with multiple TAGs, and the TAG indicated by the fifth information is determined to be the TAG corresponding to the TA value.

23. The method according to any one of claims 13 to 22, characterized in that The first information includes the first indication information and the second indication information, and the TAG corresponding to the TA value is determined according to the priority.

24. The method according to any one of claims 15 to 23, characterized in that The third information also includes information for indicating the TAG identifier, and indicates the TAG identifier in any of the following ways: Use a 2-bit field to indicate all TAG identifiers; A 1-bit field is used to indicate one of the two TAG identifiers associated with the multiple transmission and reception point M-TRP; Use a multi-bit field to indicate all TAG identifiers; A 2-bit field is used to indicate two TAG identifiers associated with the M-TRP.

25. The method according to any one of claims 13 to 24, characterized in that Also includes: receiving a first preamble; Send feedback information corresponding to the first preamble code, where the feedback information includes the TA value.

26. A terminal, characterized in that:include: A processing module, configured to determine a timing advance group TAG corresponding to the timing advance TA value according to the first information; The first information includes at least one of first indication information and second indication information, wherein the first indication information is used to indicate the association relationship between the preamble code and the TAG, and the second indication information is used to indicate the TAG information associated with the TA value.

27. A network device, characterized in that: include: The second transceiver module is configured to send first information to the terminal, wherein the first information includes at least one of first indication information and second indication information, wherein the first indication information is used to indicate the association relationship between the preamble code and the TAG, and the second indication information is used to indicate the TAG information associated with the TA value.

28. A terminal, characterized in that: include: one or more processors; Wherein, the terminal is used to execute the communication method described in any one of claims 1 to 12.

29. A network device, characterized in that: include: one or more processors; Wherein, the network device is used to execute the communication method described in any one of claims 13 to 25.

30. A communication system, characterized in that: include: A terminal and a network device, wherein the terminal is configured to implement the communication method according to any one of claims 1 to 12, and the network device is configured to implement the communication method according to any one of claims 13 to 25.

31. A computer-readable storage medium having a computer program stored thereon, characterized in that: The computer-readable storage medium stores executable instructions, and the executable instructions are loaded and executed by the processor to implement the communication method as described in any one of claims 1 to 12, or claims 13 to 25.

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