Timing advance group determination method and apparatus

Abstract

The present disclosure relates to the technical field of communications. Provided are a timing advance group determination method and an apparatus. The method provided by the embodiments of the present disclosure comprises: acquiring a value of a timing advance group (TAG) associated parameter; and according to an association relationship, determining a target TAG associated with the value of the TAG associated parameter, the association relationship comprising at least one of the following: a first association relationship between the value of the TAG associated parameter and TAGs that is specified by a protocol, a second association relationship between the value of the TAG associated parameter and TAGs that is configured by means of first indication information, and a third association relationship between the value of the TAG associated parameter and primary timing advance groups (PTAGs) under a preset condition.

Description

Method and device for determining timing advance group

[0001] This disclosure claims priority to a Chinese patent application filed with the Patent Office of China on September 27, 2023, with application number 202311257463.1 and application name “Method and Device for Determining Timing Advance Group,” the entire contents of which are incorporated by reference into this disclosure. Technical Field

[0002] The present disclosure relates to the field of communication technology, and in particular to a method and device for determining a timing advance group. Background Art

[0003] The R18 Multiple-Input Multiple-Output (MIMO) enhancement supports a dual-timing advance (TA) mechanism, meaning a serving cell can be associated with two timing advance groups (TAGs), corresponding to two transmission reception points (TRPs). Each TAG is associated with a TA value. However, there is no solution for determining the TAG used by the terminal between the two TAGs associated with the serving cell.

[0004] Summary of the Invention

[0005] The present disclosure aims to provide a method and apparatus for determining a timing advance group, so as to solve the problem of how a TA determines a TAG to be used by a terminal among multiple TAGs associated with a serving cell in a scenario where a serving cell supports multiple TAs.

[0006] The present disclosure provides a method for determining a timing advance group, which is performed by a terminal. The method includes:

[0007] Get the value of the timing advance group TAG associated parameter;

[0008] Determine, according to the association relationship, a target TAG associated with the value of the TAG association parameter;

[0009] The association relationship includes at least one of the following:

[0010] The first association between the value of the TAG association parameter specified in the protocol and the TAG;

[0011] A second association relationship between the value of the TAG association parameter configured through the first indication information and the TAG;

[0012] a third association relationship between a value of the TAG association parameter and the primary timing advance group PTAG under a preset condition;

[0013] The preset condition includes at least one of the following:

[0014] The current state of the terminal is inactive or idle;

[0015] The TAG associated parameters are received through a contention random access procedure;

[0016] The terminal supports a multi-timing advance TA mechanism;

[0017] The time alignment timer TAT associated with the PTAG is not running;

[0018] The value of the TAG associated parameter belongs to a preset value range.

[0019] Optionally, the first association relationship is obtained based on a preset mapping rule;

[0020] The preset mapping rule is to associate different values ​​of the TAG association parameter according to a preset arrangement order of the TAG identifier, and the TAG identifier is a TAG identifier associated with a serving cell configured by the network for the terminal.

[0021] Optionally, determining, based on the association relationship, a target TAG associated with the value of the TAG association parameter includes:

[0022] When the preset condition is met, a target PTAG associated with the value of the TAG association parameter is determined according to the third association relationship.

[0023] Optionally, determining, based on the association relationship, a target TAG associated with the value of the TAG association parameter includes:

[0024] When the value of the TAG association parameter is a first preset value, determining, according to the third association relationship, that the target TAG is a first PTAG corresponding to the first preset value;

[0025] Alternatively, when the value of the TAG association parameter is a second preset value, the target TAG is determined to be a second PTAG corresponding to the second preset value according to the third association relationship.

[0026] Optionally, the TAG identifier of the first PTAG is a default identifier.

[0027] Optionally, the TAG identifier of the second PTAG satisfies at least one of the following:

[0028] The TAG identifier of the second PTAG is a target value specified by the protocol;

[0029] The TAG identifier of the second PTAG is configured by the network;

[0030] The TAG identifier of the second PTAG is determined based on terminal implementation;

[0031] The value of the TAG identifier of the second PTAG is different from the default identifier.

[0032] Optionally, determining, based on the association relationship, a target TAG associated with the value of the TAG association parameter includes:

[0033] Obtaining second indication information, where the second indication information is used to indicate whether the network supports a multi-TA mechanism;

[0034] In a case where the second indication information indicates that the network supports a multi-TA mechanism, a target TAG associated with the value of the TAG association parameter is determined according to the association relationship.

[0035] Optionally, the third association relationship is obtained based on a mapping relationship between each preset value within a preset value range configured by the third indication information and the TAG identifier of the PTAG.

[0036] The present disclosure also provides a method for determining a timing advance group, which is performed by a network-side device. The method includes:

[0037] Determine the value of the TAG association parameter according to the association relationship;

[0038] Sending a timing advance group TAG associated parameter with a determined value;

[0039] The association relationship includes at least one of the following:

[0040] The first association between the value of the TAG association parameter specified in the protocol and the TAG;

[0041] A second association relationship between the value of the TAG association parameter configured through the first indication information and the TAG;

[0042] a third association relationship between a value of the TAG association parameter and the primary timing advance group PTAG under a preset condition;

[0043] The preset condition includes at least one of the following:

[0044] The current state of the terminal is inactive or idle;

[0045] The terminal's TAG-associated parameters are received through the contention random access process;

[0046] The terminal supports multiple timing advance (TA) mechanisms;

[0047] The time alignment timer TAT associated with the PTAG is not running;

[0048] The value of the TAG associated parameter belongs to a preset value range.

[0049] Optionally, the method of the embodiment of the present disclosure further includes:

[0050] Sending second indication information, where the second indication information is used to indicate whether the network supports the multi-TA mechanism.

[0051] Optionally, the method of the embodiment of the present disclosure further includes:

[0052] Configuring the third association relationship based on the third indication information;

[0053] The third indication information is used to configure a mapping relationship between each preset value within a preset value range and the TAG identifier of the PTAG.

[0054] Optionally, the method of the embodiment of the present disclosure further includes at least one of the following:

[0055] Configuring a tag identifier associated with a second PTAG, where the second PTAG is a PTAG corresponding to a second preset value of a tag association parameter;

[0056] A preset value range of the value of the TAG associated parameter is configured. When the value of the TAG associated parameter falls within the preset value range, the TAG associated with the TAG associated parameter is PTAG.

[0057] The embodiment of the present disclosure further provides a timing advance group determination device, comprising a memory, a transceiver, and a processor;

[0058] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0059] Get the value of the timing advance group TAG associated parameter;

[0060] Determine, according to the association relationship, a target TAG associated with the value of the TAG association parameter;

[0061] The association relationship includes at least one of the following:

[0062] The first association between the value of the TAG association parameter specified in the protocol and the TAG;

[0063] A second association relationship between the value of the TAG association parameter configured through the first indication information and the TAG;

[0064] a third association relationship between a value of the TAG association parameter and the primary timing advance group PTAG under a preset condition;

[0065] The preset condition includes at least one of the following:

[0066] The current state of the terminal is inactive or idle;

[0067] The TAG associated parameters are received through a contention random access procedure;

[0068] The terminal supports a multi-timing advance TA mechanism;

[0069] The time alignment timer TAT associated with the PTAG is not running;

[0070] The value of the TAG associated parameter belongs to a preset value range.

[0071] Optionally, the first association relationship is obtained based on a preset mapping rule;

[0072] The preset mapping rule is to associate different values ​​of the TAG association parameter according to a preset arrangement order of the TAG identifier, and the TAG identifier is a TAG identifier associated with a serving cell configured by the network for the terminal.

[0073] Optionally, the processor further implements the following steps:

[0074] When the preset condition is met, a target PTAG associated with the value of the TAG association parameter is determined according to the third association relationship.

[0075] Optionally, the preset condition further includes at least one of the following:

[0076] The terminal supports a multi-timing advance TA mechanism;

[0077] The time alignment timer TAT associated with the PTAG is not running;

[0078] The value of the TAG associated parameter belongs to a preset value range.

[0079] Optionally, the processor further implements the following steps:

[0080] When the value of the TAG association parameter is a first preset value, determining, according to the third association relationship, that the target TAG is a first PTAG corresponding to the first preset value;

[0081] When the value of the TAG association parameter is the second preset value, the target TAG is determined to be a second PTAG corresponding to the second preset value according to the third association relationship.

[0082] Optionally, the TAG identifier of the first PTAG is a default identifier.

[0083] Optionally, the TAG identifier of the second PTAG satisfies at least one of the following:

[0084] The TAG identifier of the second PTAG is a target value specified by the protocol;

[0085] The TAG identifier of the second PTAG is configured by the network;

[0086] The TAG identifier of the second PTAG is determined based on terminal implementation;

[0087] The value of the TAG identifier of the second PTAG is different from the default identifier.

[0088] Optionally, the processor further implements the following steps:

[0089] Obtaining second indication information, where the second indication information is used to indicate whether the network supports a multi-TA mechanism;

[0090] In a case where the second indication information indicates that the network supports a multi-TA mechanism, a target TAG associated with the value of the TAG association parameter is determined according to the association relationship.

[0091] Optionally, the third association relationship is obtained based on a mapping relationship between each preset value within a preset value range configured by the third indication information and the TAG identifier of the PTAG.

[0092] The embodiment of the present disclosure further provides a timing advance group determination device, comprising a memory, a transceiver, and a processor;

[0093] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0094] Determine the value of the TAG association parameter according to the association relationship;

[0095] Sending a timing advance group TAG associated parameter with a determined value;

[0096] The association relationship includes at least one of the following:

[0097] The first association between the value of the TAG association parameter specified in the protocol and the TAG;

[0098] A second association relationship between the value of the TAG association parameter configured through the first indication information and the TAG;

[0099] a third association relationship between a value of the TAG association parameter and the primary timing advance group PTAG under a preset condition;

[0100] The preset condition includes at least one of the following:

[0101] The current state of the terminal is inactive or idle;

[0102] The terminal's TAG-associated parameters are received through the contention random access process;

[0103] The terminal supports multiple timing advance (TA) mechanisms;

[0104] The time alignment timer TAT associated with the PTAG is not running;

[0105] The value of the TAG associated parameter belongs to a preset value range.

[0106] Optionally, the processor further implements the following steps:

[0107] Sending second indication information, where the second indication information is used to indicate whether the network supports the multi-TA mechanism.

[0108] Optionally, the processor further implements the following steps:

[0109] Configuring the third association relationship based on the third indication information;

[0110] The third indication information is used to configure a mapping relationship between each preset value within a preset value range and the TAG identifier of the PTAG.

[0111] Optionally, the processor further implements at least one of the following steps:

[0112] Configuring a tag identifier associated with a second PTAG, where the second PTAG is a PTAG corresponding to a second preset value of a tag association parameter;

[0113] A preset value range of the value of the TAG associated parameter is configured. When the value of the TAG associated parameter falls within the preset value range, the TAG associated with the TAG associated parameter is PTAG.

[0114] The present disclosure also provides a device for determining a timing advance group, including:

[0115] An acquiring unit, configured to acquire a value of a timing advance group TAG associated parameter;

[0116] A first determining unit, configured to determine a target TAG associated with the value of the TAG association parameter according to the association relationship;

[0117] The association relationship includes at least one of the following:

[0118] The first association between the value of the TAG association parameter specified in the protocol and the TAG;

[0119] A second association relationship between the value of the TAG association parameter configured through the first indication information and the TAG;

[0120] a third association relationship between a value of the TAG association parameter and the primary timing advance group PTAG under a preset condition;

[0121] The preset condition includes at least one of the following:

[0122] The current state of the terminal is inactive or idle;

[0123] The TAG associated parameters are received through a contention random access procedure;

[0124] The terminal supports a multi-timing advance TA mechanism;

[0125] The time alignment timer TAT associated with the PTAG is not running;

[0126] The value of the TAG associated parameter belongs to a preset value range.

[0127] The present disclosure also provides a device for determining a timing advance group, which is executed by a network-side device. The device includes:

[0128] A second determining unit, configured to determine a value of the TAG association parameter according to the association relationship;

[0129] A first sending unit is configured to send a timing advance group TAG associated parameter having a determined value;

[0130] The association relationship includes at least one of the following:

[0131] The first association between the value of the TAG association parameter specified in the protocol and the TAG;

[0132] A second association relationship between the value of the TAG association parameter configured through the first indication information and the TAG;

[0133] a third association relationship between a value of the TAG association parameter and the primary timing advance group PTAG under a preset condition;

[0134] The preset condition includes at least one of the following:

[0135] The current state of the terminal is inactive or idle;

[0136] The terminal's TAG-associated parameters are received through the contention random access process;

[0137] The terminal supports multiple timing advance (TA) mechanisms;

[0138] The time alignment timer TAT associated with the PTAG is not running;

[0139] The value of the TAG associated parameter belongs to a preset value range.

[0140] An embodiment of the present disclosure further provides a processor-readable storage medium storing a computer program, wherein the computer program is configured to cause the processor to execute the steps of the timing advance group determination method as described above.

[0141] The above technical solution disclosed in the present invention has at least the following beneficial effects:

[0142] In an embodiment of the present disclosure, the value of the timing advance group TAG association parameter is obtained; based on the association relationship, the target TAG associated with the value of the TAG association parameter is determined; wherein the association relationship includes at least one of the following: a first association relationship between the value of the TAG association parameter and the TAG specified in the protocol; a second association relationship between the value of the TAG association parameter configured through the first indication information and the TAG; a third association relationship between the value of the TAG association parameter and the main timing advance group PTAG under preset conditions; wherein the preset conditions include at least one of the following: the current state of the terminal is inactive or idle; the TAG association parameter is received through a competitive random access process; the terminal supports a multi-timing advance TA mechanism; the time alignment timer TAT associated with the PTAG is not running; the value of the TAG association parameter falls within a preset value range. In the above scheme, the purpose of the terminal determining the target TAG associated with the applied TA or determining the applied TA according to the target TAG in a multi-TA scenario is achieved through the above association relationship. BRIEF DESCRIPTION OF THE DRAWINGS

[0143] FIG1 is a structural diagram of a network system to which the embodiments of the present disclosure may be applied;

[0144] FIG2 shows a flow chart of a method for determining a timing advance group according to an embodiment of the present disclosure;

[0145] FIG3 shows a second flow chart of a method for determining a timing advance group according to an embodiment of the present disclosure;

[0146] FIG4 shows one structural block diagram of a device for determining a timing advance group according to an embodiment of the present disclosure;

[0147] FIG5 shows a second structural block diagram of the apparatus for determining a timing advance group according to an embodiment of the present disclosure;

[0148] FIG6 shows one of the module schematic diagrams of the apparatus for determining a timing advance group according to an embodiment of the present disclosure;

[0149] FIG7 shows a second module schematic diagram of the apparatus for determining a timing advance group according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0150] The following will clearly and completely describe the technical solutions in the embodiments of the present disclosure in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present disclosure without making any creative efforts shall fall within the scope of protection of the present disclosure.

[0151] The terms "first," "second," and the like in the specification and claims of the present disclosure are used to distinguish similar objects and are not necessarily used to describe a particular order or sequential sequence. It should be understood that the terms used in this manner are interchangeable where appropriate so that the embodiments of the present disclosure described herein may be implemented in a sequence other than those illustrated or described herein. In addition, the terms "including" and "having," and any variations thereof, are intended to cover non-exclusive inclusions, e.g., a process, method, system, product, or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such processes, methods, products, or apparatus.

[0152] In the embodiments of the present disclosure, the term "and / or" describes the relationship between associated objects, indicating that three possible relationships exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally indicates that the associated objects are in an "or" relationship. In the embodiments of the present disclosure, the term "plurality" refers to two or more, and other quantifiers are similar.

[0153] In the embodiments of the present disclosure, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present disclosure should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0154] FIG1 shows a block diagram of a wireless communication system applicable to embodiments of the present disclosure. The wireless communication system includes a terminal device 11 and a network-side device (or network device) 12. The terminal device 11 may also be referred to as a terminal or a user equipment (UE). It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present disclosure. The network-side device 12 may be a base station or a core network. It should be noted that the embodiments of the present disclosure only take a base station in a New Radio (NR) system as an example, but the specific type of the base station is not limited.

[0155] In order to enable those skilled in the art to better understand the embodiments of the present disclosure, the following description is first given.

[0156] (1) Special Cell (SpCell) and Secondary Cell (SCell);

[0157] The network can configure dual connectivity and carrier aggregation (CA) for the UE to increase the UE's transmission bandwidth and improve throughput. When the network configures dual connectivity for the UE, it configures a Master Cell Group (MCG) and a Secondary Cell Group (SCG) for the UE. Each MCG and SCG can contain at least one serving cell, including at least an SpCell. The SpCell in the MCG is also called the Primary Cell (PCell), and the SpCell in the SCG is called the SPCell. The remaining cells are all SCells. The UE needs to perform actions such as radio link monitoring on the SpCell.

[0158] (2) Timing Advance (TA) or Timing Advance Group (TAG);

[0159] TA is the timing advance, which is used to adjust uplink synchronization. The UE can initially obtain the TA value through the random access process.

[0160] A TA value can be applied to a TAG, where a TAG can contain at least one service cell, and each TAG is identified by a TAG identifier (ID). The TAG containing the SpCell cell is called the Primary Timing Advance Group (PTAG), and the remaining TAGs are called Secondary Timing Advance Groups (STAGs). R18 supports the 2TA feature, that is, a service cell can be associated with two TAGs, each associated with a TA value. It also supports 2PTAG, that is, when the SpCell is configured with two TAGs, the two associated TAGs are both called PTAGs.

[0161] (3) Random Access Channel (RACH);

[0162] The RACH process supports 4-step and 2-step RACH. For 4-step RACH, the UE receives a Random Access Response (RAR) message in message 2, which contains a TA value and is applied to the corresponding TAG. For 2-step RACH, the UE receives an absolute Timing Advance Command (MAC CE) or a successful RAR in message B (msgB) that contains a TA value and is applied to the corresponding TAG. R15-R17 only supports one serving cell associated with one TAG, and there is only one PTAG. For the Contention Based Random Access (CBRA) process triggered by an idle / inactive UE, the UE applies the TA value to the PTAG. The TAG ID associated with the PTAG is 0.

[0163] As shown in FIG2 , an embodiment of the present disclosure provides a method for determining a timing advance group, which is performed by a terminal. The method includes:

[0164] Step 201: Obtain the value of the timing advance group TAG associated parameter.

[0165] In the disclosed embodiment, the value of the TAG-associated parameter may be obtained through a Transmission Configuration Indicator (TCI), a RAR (obtained through 4-step RACH or 2-step RACH), or an Absolute Timing Advance Command (obtained through 2-step RACH), but is not limited thereto.

[0166] Optionally, the TAG association parameter is N-bit indication information associated with the TAG. For example, for a 2TA scenario, the TAG association parameter is 1-bit indication information associated with the TAG.

[0167] Step 202: Determine the target TAG associated with the value of the TAG association parameter according to the association relationship;

[0168] The association relationship includes at least one of the following:

[0169] The first item: the first association between the value of the TAG association parameter specified in the protocol and the TAG;

[0170] One specific possible implementation is that the protocol specifies that different values ​​of a TAG association parameter are associated with different configuration parameters. For example, the protocol specifies that when the TAG association parameter value is 0, it is associated with the first TAG, where the first TAG is configured in signaling. That is, the signaling includes the configuration parameters of the first TAG, and the specific value of the first TAG is configured to the UE through the configuration parameters. However, this is not limited to these two implementations. Alternatively, the protocol specifies a preset rule, whereby different TAG association parameter values ​​obtained according to the preset rule are mapped to different TAG IDs. However, this is not limited to the above two implementations.

[0171] Item 2: A second association between the value of the TAG association parameter configured via the first indication information and the TAG; this second association is configured per UE, per cell, or per cell group. One possible implementation is to specify in the indication information the specific TAG ID to which the TAG association parameter is associated when the value is different. For example, when the first indication information configures the TAG association parameter to be 0, a specific TAG ID is associated; or, when the TAG association parameter value is different, the TAG ID is associated according to a specified rule, such as when the TAG association parameter value is 0, a TAG ID with a smaller value is associated. While the association parameter value 0 is used as an example here, other values ​​of the association parameter can also be configured. Furthermore, the first indication information is not limited to configuring a single association parameter value. The first indication information can also distinguish TAG IDs corresponding to TAG association parameter values ​​greater than one. As an implementation, the first indication information can be configured via system information broadcast and / or dedicated signaling; that is, the first indication information is a broadcast message and / or dedicated signaling.

[0172] Item 3: a third association relationship between the value of the TAG association parameter and the primary timing advance group PTAG under preset conditions;

[0173] As an implementation method, taking support for 2TA as an example, the above-mentioned TAG associated parameter can be indicated by 1-bit indication information, and the value of the TAG associated parameter can be 0 or 1.

[0174] For example, for the first item above, the method of specifying the first association relationship through the protocol can be described as a method of implicitly configuring the association relationship between the value of the TAG association parameter and the TAG. For example, the signaling allows each serving cell to configure TAG1 and TAG2 respectively, and associate two TAG IDs respectively, that is, the signaling contains two fields indicating TAG1 and TAG2 respectively, wherein the protocol stipulates that when the value of the 1-bit TAG association parameter is 0, the associated TAG is TAG1, and when the value of the 1-bit TAG association parameter is 1, the associated TAG is TAG2. A specific implementation method is as follows:

[0175] The UE is configured with serving cell cell1, where the network configures TAG1 and TAG2 associated with cell1. The TAG ID associated with TAG1 is 2, and the TAG ID associated with TAG2 is 3.

[0176] When the UE receives a 1-bit TAG association parameter (or TAG association indication information) with a value of 0, it indicates association with TAG1, that is, association with TAG with TAG ID 2. When the value is 1, it indicates association with TAG2, that is, association with TAG with TAG ID 3.

[0177] The method of specifying the first association relationship through a protocol in the first item above can be described as configuring the first association relationship in an implicit manner.

[0178] For the second item above, the manner of configuring the second association relationship between the value of the TAG association parameter and the TAG through the first indication information can be described as a manner of configuring the association relationship between the value of the TAG association parameter and the TAG in an explicit manner. For example, the signaling (first indication information) allows each serving cell to configure TAG1 and TAG2 respectively, and associate two TAG IDs respectively, that is, the signaling contains two fields to indicate TAG1 and TAG2 respectively. In addition, the signaling also contains one or two fields for configuring the association relationship between the value of the 1-bit TAG association parameter and the TAG, for example, configuring the associated TAG when the value of the TAG association parameter is 0 and 1 respectively. A specific implementation method is as follows:

[0179] The UE is configured with serving cell cell1, where the network configures TAG1 and TAG2 associated with cell1, where the TAG ID associated with TAG1 is 2, the TAG ID associated with TAG2 is 3, and the network configures a 1-bit TAG association parameter with a value of 0 to associate with TAG2.

[0180] When the UE receives a 1-bit TAG association parameter with a value of 0, it indicates association with TAG2, that is, association with the TAG with TAG ID 3. When the value of the TAG association parameter is 1, it indicates association with TAG1, that is, association with the TAG with TAG ID 2. Alternatively, the network configures a 1-bit TAG association parameter with a value of 0 to associate the TAG with the smaller TAG ID between TAG1 and TAG2. When the UE receives a 1-bit TAG association parameter with a value of 0, it indicates association with the TAG with the smaller TAG ID between TAG1 and TAG2, that is, association with the TAG with TAG ID 2, namely TAG1. When the value of the TAG association parameter is 1, it indicates association with the TAG with the larger TAG ID between TAG1 and TAG2, that is, association with the TAG with TAG ID 3, namely TAG2.

[0181] The 1-bit TAG-related parameter is received via a Transmission Configuration Indicator (TCI) or via an RAR or an Absolute Timing Advance Command.

[0182] Regarding the third item above, the preset condition includes at least one of the following:

[0183] Condition 1: The current state of the terminal is inactive or idle;

[0184] Condition 2: The TAG-associated parameter is received through a contention-based random access procedure; for example, the RAR receives the TAG-associated parameter, where the RAR sends the TAG-associated parameter during the contention-based random access procedure.

[0185] Condition 3: The terminal supports the multi-timing advance (TA) mechanism, i.e., one serving cell can be associated with multiple timing advance groups. For example, a serving cell supports 2TA, i.e., it is allowed to be configured to be associated with two TAGs. In other words, the terminal supports one serving cell being associated with multiple timing advance groups, for example, two TAGs.

[0186] Condition 4: The time alignment timer or time calibration timer (TAT) associated with the PTAG is not running. The TAT is used by the UE to monitor the validity of the TA corresponding to the PTAG. This may mean that none of the TATs associated with the PTAG is running, or at least one of the TATs associated with the PTAG is not running, or none of the TATs associated with the PTAG is running.

[0187] Condition 5: The value of the TAG-associated parameter falls within a preset value range. The preset value range is obtained through broadcast information or dedicated signaling, or both.

[0188] As an implementation method, when any one of the above conditions is met (such as condition 1, condition 2, condition 3, condition 4 or condition 5), the terminal determines the target TAG associated with the value of the TAG association parameter based on the above third association relationship.

[0189] As an implementation method, when any two of the above conditions are met (such as meeting condition 1 and condition 2, or meeting condition 3 and condition 4, or meeting condition 1 and condition 5, etc.), the terminal determines the target TAG associated with the value of the TAG association parameter based on the above third association relationship.

[0190] As an implementation method, when any three of the above conditions are met (such as meeting condition 1, condition 2 and condition 3, or meeting condition 1, condition 2 and condition 4, or meeting condition 1, condition 2 or condition 5, etc.), the terminal determines the target TAG associated with the value of the TAG association parameter based on the above third association relationship.

[0191] As an implementation method, when any four of the above conditions are met (such as meeting condition 1, condition 2, condition 3 and condition 4, or meeting condition 1, condition 2, condition 4 and condition 5, etc.), the terminal determines the target TAG associated with the value of the TAG association parameter based on the above third association relationship.

[0192] As an implementation manner, when the above five conditions are met, the terminal determines the target TAG associated with the value of the TAG association parameter based on the above third association relationship.

[0193] In the above scheme, after obtaining the value of the TAG associated parameter, if the current state of the terminal is inactive or idle state, the TAG associated parameter is received through a competitive random access process, the terminal supports a multi-timing advance TA mechanism, the TAT associated with the PTAG is not running and / or the value of the TAG associated parameter belongs to a preset value range (one or more of the above are met), the terminal determines the target TAG associated with the value of the TAG associated parameter based on the above third association relationship.

[0194] In an embodiment of the present disclosure, for triggering a CBRA process and / or an idle / inactive UE, when the terminal supports a multi-TA mechanism, the TAG association parameter is received through a competitive random access process, the TAT associated with the PTAG is not running (i.e., the TA corresponding to the PTAG is in an invalid state) and / or the value of the TAG association parameter belongs to a preset value range (one or more of the above are met), it indicates that the terminal needs to determine the target PTAG associated with the value of the TAG association parameter based on the above-mentioned third association relationship, so that when the inactive / idle UE triggers random access and the multi-TA feature has not yet been configured, the purpose of associating the TA value received in the random access process with the corresponding PTAG can be achieved.

[0195] In addition, it should be noted that the first association relationship and the second association relationship may be the same or different.

[0196] Optionally, the first association relationship is obtained based on a preset mapping rule;

[0197] The preset mapping rule is to associate different values ​​of the TAG association parameter according to a preset arrangement order of the TAG identifier, and the TAG identifier is a TAG identifier associated with a serving cell configured by the network for the terminal.

[0198] As an implementation method, the preset arrangement order of the above-mentioned TAG identifiers is the size arrangement order corresponding to the values ​​of the TAG identifiers. For example, when the value of the TAG association parameter is 0, the TAG identifier with a smaller value in the associated TAG identifier (such as identifier 0) is associated, and when the value of the TAG association parameter is 1, the TAG identifier with a larger value in the associated TAG identifier (such as identifier 1) is associated. Alternatively, the preset arrangement order of the TAG identifiers is arranged in the order of time when the UE obtains the TA, for example, the UE obtains the TA associated with TAG1 at time T1, and obtains the TA associated with TAG2 at time T2, where T1 is earlier than T2, and the preset arrangement order is arranged in the order of the time when the UE obtains the TA, then when the value of the TAG association parameter is 0, the TAG associated with the TA obtained earlier is associated, that is, TAG1.

[0199] Based on the above-mentioned preset mapping rules, the first association relationship specified in the protocol is obtained. When the terminal determines the target TAG associated with the value of the TAG association parameter based on the first association relationship, there is no need for the network side to send signaling to indicate the target TAG associated with the value of the TAG association parameter, which saves signaling interaction between the network side and the terminal, and thus saves signaling overhead.

[0200] Optionally, determining, based on the association relationship, a target TAG associated with the value of the TAG association parameter includes:

[0201] When the preset condition is met, a target PTAG associated with the value of the TAG association parameter is determined according to the third association relationship.

[0202] For example, when the terminal obtains the value of the TAG association parameter through the CBRA process, the terminal determines the target PTAG associated with the value of the TAG association parameter based on the third association relationship. In addition, if the TA is also obtained during the CBRA process, the TA is applied to the target PTAG. Optionally, the terminal is an idle / inactive terminal.

[0203] Here, for triggering the CBRA process and / or idle / inactive UE, based on the above-mentioned third association relationship, the purpose of determining the target PTAG associated with the value of the TAG association parameter is achieved. When the TA is received, the TA is associated with the corresponding PTAG according to the TAG association parameter. Therefore, for a serving cell associated with two PTAGs, the two PTAGs are associated with different TAG IDs. When an inactive / idle UE triggers random access and the 2TA feature is not yet configured, the purpose of associating the TA value received during the random access process with the corresponding PTAG, that is, the TAG ID corresponding to the associated PTAG, can be achieved.

[0204] Optionally, determining, based on the association relationship, a target TAG associated with the value of the TAG association parameter includes:

[0205] When the value of the TAG association parameter is a first preset value, determining, according to the third association relationship, that the target TAG is a first PTAG corresponding to the first preset value;

[0206] Alternatively, when the value of the TAG association parameter is a second preset value, the target TAG is determined to be a second PTAG corresponding to the second preset value according to the third association relationship.

[0207] For example, the first preset value is 0, and the first PTAG is a PTAG with a TAG identifier of 0; for example, the second preset value is 1, and the second PTAG is a PTAG with a TAG identifier of a non-zero value, for example, the value corresponding to the TAG identifier of a non-zero value is 1.

[0208] It should be noted that the number of the second preset values ​​can be one or more, and different second preset values ​​correspond to different second PTAG identifiers. For example, when the second preset value is 1, the associated second PTAG value is 1, and when the second preset value is 2, the associated second PTAG value is 2, etc.

[0209] Here, different preset values ​​in the third association relationship are associated with different PTAGs. Based on the third association relationship, the association relationship between different preset values ​​and PTAGs can be determined.

[0210] As an implementation manner, the third association relationship is obtained based on a mapping relationship between each preset value within a preset value range configured by the third indication information and the TAG identifier of the PTAG.

[0211] Here, the third indication information is used to achieve the purpose of configuring the third association relationship in an explicit manner. The specific implementation of this method can refer to the method for obtaining the second association relationship, which will not be described in detail.

[0212] Another implementation method involves mapping each preset value within a preset value range to a PTAG's tag identifier using a preset mapping rule. For example, the preset rule maps the order of the tag IDs associated with each PTAG to the order of the values ​​within the preset value range. The PTAGs may include all PTAGs or only the second PTAG. The specific implementation of this method can be referenced to the method for obtaining the first association relationship and will not be further described.

[0213] One implementation of the preset value range is: for example, the value range of the TAG association parameter can be 0-3, and the preset value range is {0,1}. Then, when the TAG association parameter value is {0,1}, the PTAG is associated, otherwise the PTAG is not associated.

[0214] Optionally, the TAG identifier of the first PTAG is a default identifier, such as a TAG identifier of 0.

[0215] Optionally, the TAG identifier of the second PTAG satisfies at least one of the following:

[0216] The TAG identifier of the second PTAG is a target value specified by the protocol; for example, the protocol specifies that the TAG identifier of the second PTAG is 1.

[0217] The TAG identifier of the second PTAG is configured by the network; for example, the network configures it through broadcasting; for example, the TAG identifier of the second PTAG configured by the network is 1.

[0218] The TAG identifier of the second PTAG is determined based on the terminal implementation; for example, the TAG identifier value range is 0-3, and one of the numbers is selected as the second PTAG based on the UE implementation, such as 1.

[0219] The TAG identifier of the second PTAG has a value different from the default identifier. For example, if the first PTAG has a default identifier, such as 0, the TAG identifier of the second PTAG is a non-zero value, i.e., a value different from the first PTAG. The specific value may be determined by protocol specifications, network configuration, or UE implementation, and will not be further described.

[0220] As an implementation manner, determining the target TAG associated with the value of the TAG association parameter according to the association relationship includes:

[0221] Obtaining second indication information, where the second indication information is used to indicate whether the network supports a multi-TA mechanism;

[0222] In a case where the second indication information indicates that the network supports a multi-TA mechanism, a target TAG associated with the value of the TAG association parameter is determined according to the association relationship.

[0223] Here, when the second indication information indicates that the network supports the multi-TA mechanism, it means that the serving cell can be associated with multiple TAGs, and further, it is necessary to determine the target TAG associated with the value of the TAG association parameter based on the above association relationship. A possible implementation manner is: the second indication information indicates that the network supports the multi-TA mechanism and simultaneously indicates that the UE needs to read the TAG-associated parameter, and determines the associated target TAG according to the value of the TAG-associated parameter, otherwise ignores the TAG-associated parameter or considers that the TAG-associated parameter value is a default value; or the second indication information indicates that the network supports the multi-TA mechanism and simultaneously indicates that in certain scenarios (for example, during contention access, idle / inactive UE, UE has not yet configured multi-TA, UE supports multi-TA features, and at least one of the above conditions is met), the TAG-associated parameter needs to be read, and the associated target TAG is determined according to the value of the TAG-associated parameter, otherwise ignores the TAG-associated parameter or considers that the TAG-associated parameter value is a default value; or the second indication information indicates that the network supports the multi-TA mechanism and simultaneously indicates that the UE needs to read the TAG-associated parameter, if the TAG-associated parameter is within a preset value range, determine the associated target TAG according to the value of the TAG-associated parameter, otherwise (the TAG-associated parameter value is not within the preset value range, or the second indication information indicates that the multi-TA mechanism is not supported), ignore the TAG-associated parameter or consider that the TAG-associated parameter value is a default value.

[0224] In the embodiment of the present disclosure, the process of determining the target TAG based on the third association relationship under the above preset conditions includes, taking 2TA as an example, but not excluding other multi-TAG mechanism situations:

[0225] Step 0: The UE receives second indication information from the network through system information, where the second indication information indicates to the UE that the network supports the 2TA feature.

[0226] Step 1: An idle / inactive UE triggers a CBRA process, or a connected UE triggers a CBRA process. The UE has no TAT associated with a PTAG running. The CBRA process is a 4-step or 2-step CBRA process, which is not specifically limited here.

[0227] Step 2: The UE receives the RAR or Absolute Timing Advance Command, which contains the TA value and a 1-bit TAG association parameter.

[0228] Step 3-1: If the UE supports 2TA, then:

[0229] If the value of the 1-bit TAG association parameter is 0, the UE applies the TA value to the PTAG with TAG ID 0;

[0230] If the value of the 1-bit TAG association parameter is 1, the UE applies the TA value to the PTAG whose TAG ID is a non-zero value. For example, the non-zero TAG ID may be 1. The non-zero value may be provided by the network through system information broadcast, or specified by the protocol, or selected based on the UE implementation.

[0231] The opposite is also true. For example, if the value of the 1-bit TAG association parameter is 0, the UE applies the TA value to PTAG, where the TAG ID corresponding to PTAG is a non-zero value. If the value of the 1-bit TAG association parameter is 1, the UE applies the TA value to PTAG, where the TAG ID corresponding to PTAG is 0.

[0232] Step 3-2: If the UE does not support the 2TA feature:

[0233] The UE applies the TA value to the PTAG, where the TAG ID corresponding to the PTAG is 0.

[0234] In the solution of the embodiments of the present disclosure, the association relationship between the value of the TAG association parameter and the TAG ID of the PTAG can be achieved in an implicit manner, for example, the protocol stipulates a specific association relationship or the protocol stipulates a preset rule to achieve the mapping of the value of the TAG association parameter and the TAG ID of the PTAG, or it can be achieved through explicit configuration, for example, the specific association relationship or mapping rule is configured through signaling. The specific embodiments have been involved in the above and will not be repeated here. For the idle / inactive UE that triggers the CBRA process and supports the 2TA feature, after receiving the TA, the TA is associated with the corresponding PTAG according to the TAG association parameter. If 2TA is not supported, the TAG association parameter is ignored and the TA is associated with the PTAG with a TAG ID of 0.

[0235] As shown in FIG3 , an embodiment of the present disclosure further provides a method for determining a timing advance group, which is performed by a network-side device, which may be specifically a base station. The method includes:

[0236] Step 301: Determine the value of the TAG association parameter according to the association relationship.

[0237] Step 302: Send the timing advance group TAG associated parameter with the determined value;

[0238] The association relationship includes at least one of the following:

[0239] The first item: the first association between the value of the TAG association parameter specified in the protocol and the TAG;

[0240] One possible implementation is that the protocol specifies that different values ​​of the TAG association parameter are associated with different configuration parameters. For example, the protocol specifies that when the TAG association parameter value is 0, it is associated with the first TAG, where the first TAG is configured in signaling. That is, the signaling includes the TAG configuration parameters, and the specific value of the first TAG is configured to the UE through the configuration parameters. However, this is not limited to these two implementations. Alternatively, the protocol specifies a preset rule, whereby different TAG association parameter values ​​obtained according to the preset rule are mapped to different TAG IDs. However, this is not limited to the above two implementations.

[0241] Item 2: A second association between the value of the TAG association parameter configured via the first indication information and the TAG; this second association is configured per UE, per cell, or per cell group. One possible implementation is to specify in the indication information the specific TAG ID to which the TAG association parameter is associated when the value is different. For example, when the first indication information configures the TAG association parameter to be 0, a specific TAG ID is associated; or, when the TAG association parameter value is different, the TAG ID is associated according to a specified rule, such as when the TAG association parameter value is 0, a TAG ID with a smaller value is associated. While the association parameter value 0 is used as an example here, other values ​​of the association parameter can also be configured. Furthermore, the first indication information is not limited to configuring a single association parameter value. The first indication information can also distinguish TAG IDs corresponding to TAG association parameter values ​​greater than one. As an implementation, the first indication information can be configured via system information broadcast and / or dedicated signaling; that is, the first indication information is a broadcast message and / or dedicated signaling. Item 3: a third association relationship between the value of the TAG association parameter and the primary timing advance group PTAG under preset conditions.

[0242] The preset conditions have been described in detail in the terminal side method embodiment and will not be repeated here.

[0243] As an implementation method, taking support for 2TA as an example, the above-mentioned TAG associated parameter can be indicated by 1-bit indication information, and the value of the TAG associated parameter can be 0 or 1.

[0244] For example, for the first item above, the method of specifying the first association relationship through the protocol can be described as a method of implicitly configuring the association relationship between the value of the TAG association parameter and the TAG. For example, the signaling allows each serving cell to configure TAG1 and TAG2 respectively, and associate two TAG IDs respectively, that is, the signaling contains two fields indicating TAG1 and TAG2 respectively, wherein the protocol stipulates that when the value of the 1-bit TAG association parameter is 0, the associated TAG is TAG1, and when the value of the 1-bit TAG association parameter is 1, the associated TAG is TAG2. A specific implementation method is as follows:

[0245] The UE is configured with serving cell cell1, where the network configures TAG1 and TAG2 associated with cell1. The TAG ID associated with TAG1 is 2, and the TAG ID associated with TAG2 is 3.

[0246] When the UE receives a 1-bit TAG association parameter (or TAG association indication information) with a value of 0, it indicates association with TAG1, that is, association with TAG with TAG ID 2. When the value is 1, it indicates association with TAG2, that is, association with TAG with TAG ID 3.

[0247] The method of specifying the first association relationship through a protocol in the first item above can be described as configuring the first association relationship in an implicit manner.

[0248] For the second item above, the manner of configuring the second association relationship between the value of the TAG association parameter and the TAG through the first indication information can be described as a manner of configuring the association relationship between the value of the TAG association parameter and the TAG in an explicit manner. For example, the signaling (first indication information) allows each serving cell to configure TAG1 and TAG2 respectively, and associate two TAG IDs respectively, that is, the signaling contains two fields to indicate TAG1 and TAG2 respectively. In addition, the signaling also contains one or two fields for configuring the association relationship between the value of the 1-bit TAG association parameter and the TAG, for example, configuring the associated TAG when the value of the TAG association parameter is 0 and 1 respectively. A specific implementation method is as follows:

[0249] The UE is configured with serving cell cell1, where the network configures TAG1 and TAG2 associated with cell1, where the TAG ID associated with TAG1 is 2, the TAG ID associated with TAG2 is 3, and the network configures a 1-bit TAG association parameter with a value of 0 to associate with TAG2.

[0250] When the UE receives a 1-bit TAG association parameter with a value of 0, it indicates the association with TAG2, that is, the association with the TAG with TAG ID 3. When the TAG association parameter has a value of 1, it indicates the association with TAG1, that is, the association with the TAG with TAG ID 2. Or when the network configures the 1-bit TAG association parameter to have a value of 0, it indicates the association with the TAG with a smaller TAG ID. When the UE receives a 1-bit TAG association parameter with a value of 0, it indicates the association with the TAG with a smaller TAG ID between TAG1 and TAG2, that is, the association with the TAG with TAG ID 2, namely TAG1. When the TAG association parameter has a value of 1, it indicates the association with the TAG with a larger TAG ID between TAG1 and TAG2, that is, the association with the TAG with TAG ID 3, namely TAG2.

[0251] The 1-bit TAG-related parameter is received via a Transmission Configuration Indicator (TCI) or via an RAR or an Absolute Timing Advance Command.

[0252] Regarding the third item above, the preset condition includes at least one of the following:

[0253] Condition 1: The current state of the terminal is inactive or idle;

[0254] Condition 2: The TAG-associated parameter is received through a contention-based random access procedure; for example, the RAR receives the TAG-associated parameter, where the RAR sends the TAG-associated parameter during the contention-based random access procedure.

[0255] Condition 3: The terminal supports the multi-timing advance (TA) mechanism, i.e., one serving cell can be associated with multiple timing advance groups. For example, a serving cell supports 2TA, i.e., it is allowed to be configured to be associated with two TAGs. In other words, the terminal supports one serving cell being associated with multiple timing advance groups, for example, two TAGs.

[0256] Condition 4: The time alignment timer or time calibration timer (TAT) associated with the PTAG is not running. The TAT is used by the UE to monitor the validity of the TA corresponding to the PTAG. This may mean that none of the TATs associated with the PTAG is running, or at least one of the TATs associated with the PTAG is not running, or none of the TATs associated with the PTAG is running.

[0257] Condition 5: The value of the TAG-associated parameter falls within a preset value range. The preset value range is obtained through broadcast information or dedicated signaling, or both.

[0258] For example, after obtaining the value of the TAG associated parameter, if the current state of the terminal is inactive or idle state, the TAG associated parameter is received through a competitive random access process, the terminal supports a multi-timing advance TA mechanism, the TAT associated with the PTAG is not running and / or the value of the TAG associated parameter belongs to a preset value range (one or more of the above are met), the terminal determines the target TAG associated with the value of the TAG associated parameter based on the above third association relationship.

[0259] In the embodiment of the present disclosure, the network side device determines the value of the TAG association parameter based on the association relationship; sends the timing advance group TAG association parameter with the determined value, so that the terminal can determine the target TAG associated with the value of the TAG association parameter based on the association relationship, thereby achieving the purpose of the terminal determining the target TAG associated with the applied TA or determining the applied TA according to the target TAG in the multi-TA scenario through the above-mentioned association relationship.

[0260] Optionally, the method of the embodiment of the present disclosure further includes:

[0261] Sending second indication information, where the second indication information is used to indicate whether the network supports the multi-TA mechanism.

[0262] Here, the network side device sends the second indication information so that the terminal can determine the target TAG associated with the value of the TAG association parameter according to the association relationship when the network side device supports the multi-TA mechanism. One possible implementation manner is that the second indication information indicates that the network supports the multi-TA mechanism and simultaneously indicates that the UE needs to read the TAG-associated parameter, and determines the associated target TAG according to the value of the TAG-associated parameter; otherwise, the TAG-associated parameter is ignored or the TAG-associated parameter is considered to be a default value; or the second indication information indicates that the network supports the multi-TA mechanism and simultaneously indicates that in certain scenarios (for example, during contention access, idle / inactive UE, UE has not yet configured multi-TA, UE supports multi-TA features, and at least one of the above conditions is met), the TAG-associated parameter needs to be read, and the associated target TAG is determined according to the value of the TAG-associated parameter; otherwise, the TAG-associated parameter is ignored or the TAG-associated parameter is considered to be a default value; or the second indication information indicates that the network supports the multi-TA mechanism and simultaneously indicates that the UE needs to read the TAG-associated parameter, and if the TAG-associated parameter is within a preset value range, the associated target TAG is determined according to the value of the TAG-associated parameter; otherwise (the TAG-associated parameter value is not within the preset value range, or the second indication information indicates that the multi-TA mechanism is not supported), the TAG-associated parameter is ignored or the TAG-associated parameter value is considered to be a default value;

[0263] Optionally, the second indication information is sent via system information broadcast and / or dedicated signaling, that is, the second indication information can be a broadcast message or dedicated signaling.

[0264] Optionally, the method of the embodiment of the present disclosure further includes:

[0265] Configuring the third association relationship based on the third indication information;

[0266] The third indication information is used to configure a mapping relationship between each preset value within a preset value range and the TAG identifier of the PTAG.

[0267] Optionally, the third indication information is sent via system information broadcast and / or dedicated signaling. That is, the third indication information can be a broadcast message or dedicated signaling. Configuring the third association relationship via the third indication information achieves the purpose of configuring the third association relationship in an explicit manner.

[0268] Optionally, the method of the embodiment of the present disclosure further includes at least one of the following:

[0269] Configure a TAG identifier associated with a second PTAG, where the second PTAG is the PTAG corresponding to when the value of the TAG association parameter is a second preset value; optionally, configure through system information broadcast and / or through dedicated signaling.

[0270] The preset value range of the TAG association parameter is configured. When the value of the TAG association parameter falls within the preset value range, the TAG associated with the TAG association parameter is PTAG. Optionally, the configuration is performed through system information broadcast and / or dedicated signaling.

[0271] Here, the network side device configures the TAG identifier associated with the second PTAG so that the terminal can determine the PTAG identifier corresponding to the value of the TAG association parameter according to the third association relationship.

[0272] In the embodiment of the present disclosure, the network side device determines the value of the TAG association parameter based on the association relationship; sends the timing advance group TAG association parameter with the determined value, so that the terminal can determine the target TAG associated with the value of the TAG association parameter based on the association relationship, thereby achieving the purpose of the terminal determining the target TAG associated with the applied TA or determining the applied TA according to the target TAG in the multi-TA scenario through the above-mentioned association relationship.

[0273] It should be noted that the method for determining the timing advance group executed by the network device is a method corresponding to the method for determining the timing advance group executed by the above-mentioned terminal. The specific interaction process between the two has been described in detail in the embodiment on the terminal side and will not be repeated here.

[0274] As shown in FIG4 , an embodiment of the present disclosure provides a timing advance group determination device, which is applied to a terminal and includes a memory 420 , a transceiver 400 , and a processor 410 ;

[0275] The memory 420 is used to store computer programs; the transceiver 400 is used to send and receive data under the control of the processor 410; the processor 410 is used to read the computer program in the memory 420 and perform the following operations:

[0276] Get the value of the timing advance group TAG associated parameter;

[0277] Determine, according to the association relationship, a target TAG associated with the value of the TAG association parameter;

[0278] The association relationship includes at least one of the following:

[0279] The first association between the value of the TAG association parameter specified in the protocol and the TAG;

[0280] A second association relationship between the value of the TAG association parameter configured through the first indication information and the TAG;

[0281] a third association relationship between a value of the TAG association parameter and the primary timing advance group PTAG under a preset condition;

[0282] The preset condition includes at least one of the following:

[0283] The current state of the terminal is inactive or idle;

[0284] The TAG associated parameters are received through a contention random access procedure;

[0285] The terminal supports a multi-timing advance TA mechanism;

[0286] The time alignment timer TAT associated with the PTAG is not running;

[0287] The value of the TAG associated parameter belongs to a preset value range.

[0288] As an implementation manner, the above-mentioned TAG associated parameter can be indicated by 1-bit indication information, and the value of the TAG associated parameter can be 0 or 1.

[0289] For example, for the first item above, the method of specifying the first association relationship through the protocol can be described as a method of implicitly configuring the association relationship between the value of the TAG association parameter and the TAG. For example, the signaling allows each serving cell to configure TAG1 and TAG2 respectively, and associate two TAG IDs respectively, that is, the signaling contains two fields indicating TAG1 and TAG2 respectively, wherein the protocol stipulates that when the value of the 1-bit TAG association parameter is 0, the associated TAG is TAG1, and when the value of the 1-bit TAG association parameter is 1, the associated TAG is TAG2. A specific implementation method is as follows:

[0290] The UE is configured to serve cell cell1, where the network associates TAG1 and TAG2 with cell1. TAG1 is associated with TAG ID 2, and TAG2 is associated with TAG ID 3.

[0291] When the UE receives a 1-bit tag association parameter (or described as tag association indication information) with a value of 0, it indicates that the association is to tag 1, that is, the tag with tag ID 2. When the value is 1, it indicates that the association is to tag 2, that is, the tag with tag ID 3.

[0292] The method of specifying the first association relationship through a protocol in the first item above can be described as configuring the first association relationship in an implicit manner.

[0293] For the second item above, the manner of configuring the second association relationship between the value of the TAG association parameter and the TAG through the first indication information can be described as a manner of configuring the association relationship between the value of the TAG association parameter and the TAG in an explicit manner. For example, the signaling (first indication information) allows each serving cell to configure TAG1 and TAG2 respectively, and associate two TAG IDs respectively, that is, the signaling contains two fields to indicate TAG1 and TAG2 respectively. In addition, the signaling also contains one or two fields for configuring the association relationship between the value of the 1-bit TAG association parameter and the TAG, for example, configuring the associated TAG when the value of the TAG association parameter is 0 and 1 respectively. A specific implementation method is as follows:

[0294] The UE is configured with serving cell cell1, where the network configures association with TAG1 and TAG2 for cell1, where TAG1 is configured with an associated TAG ID of 2, and TAG2 is configured with an associated TAG ID of 3. Furthermore, when the network configures a 1-bit TAG association parameter with a value of 0, the UE is associated with TAG2.

[0295] When the UE receives a 1-bit TAG association parameter with a value of 0, it indicates that the associated tag is TAG2, that is, the tag with TAG ID 3. When the TAG association parameter has a value of 1, it indicates that the associated tag is TAG1, that is, the tag with TAG ID 2.

[0296] The 1-bit TAG-related parameter is received via a Transmission Configuration Indicator (TCI) or via an RAR or an Absolute Timing Advance Command.

[0297] For the third item above, when the terminal receives TAG association parameters through the contention random access process, and / or the current state of the terminal is inactive or idle, the target TAG is determined based on the third association relationship, that is, the target TAG is determined to be PTAG.

[0298] In addition, it should be noted that the first association relationship and the second association relationship may be the same or different.

[0299] In FIG4 , the bus architecture may include any number of interconnected buses and bridges, specifically various circuits connected together by one or more processors represented by processor 410 and memory represented by memory 420. The bus architecture may also connect various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 400 may be a plurality of components, including a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, such as a wireless channel, a wired channel, an optical cable, and the like. For different user devices, the user interface 430 may also be an interface capable of connecting external or internal devices as required, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0300] The processor 410 is responsible for managing the bus architecture and general processing, and the memory 420 can store data used by the processor 410 when performing operations.

[0301] Optionally, the processor 410 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or a complex programmable logic device (CPLD), and the processor may also adopt a multi-core architecture.

[0302] The processor calls the computer program stored in the memory to execute any of the methods provided by the embodiments of the present disclosure according to the obtained executable instructions. The processor and the memory can also be arranged physically separately.

[0303] Optionally, the first association relationship is obtained based on a preset mapping rule;

[0304] The preset mapping rule is to associate different values ​​of the TAG association parameter according to a preset arrangement order of the TAG identifier, and the TAG identifier is a TAG identifier associated with a serving cell configured by the network for the terminal.

[0305] Optionally, the processor further implements the following steps:

[0306] When the preset condition is met, a target PTAG associated with the value of the TAG association parameter is determined according to the third association relationship.

[0307] Optionally, the processor further implements the following steps:

[0308] When the value of the TAG association parameter is a first preset value, determining, according to the third association relationship, that the target TAG is a first PTAG corresponding to the first preset value;

[0309] When the value of the TAG association parameter is the second preset value, the target TAG is determined to be a second PTAG corresponding to the second preset value according to the third association relationship.

[0310] Optionally, the TAG identifier of the first PTAG is a default identifier.

[0311] Optionally, the TAG identifier of the second PTAG satisfies at least one of the following:

[0312] The TAG identifier of the second PTAG is a target value specified by the protocol;

[0313] The TAG identifier of the second PTAG is configured by the network;

[0314] The TAG identifier of the second PTAG is determined based on terminal implementation;

[0315] The value of the TAG identifier of the second PTAG is different from the default identifier.

[0316] Optionally, the processor further implements the following steps:

[0317] Obtaining second indication information, where the second indication information is used to indicate whether the network supports a multi-TA mechanism;

[0318] In a case where the second indication information indicates that the network supports a multi-TA mechanism, a target TAG associated with the value of the TAG association parameter is determined according to the association relationship.

[0319] Optionally, the third association relationship is obtained based on a mapping relationship between each preset value within a preset value range configured by the third indication information and the TAG identifier of the PTAG.

[0320] It should be noted here that the above-mentioned device provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned embodiment of the method for determining the timing advance group applied to the terminal, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0321] As shown in FIG5 , an embodiment of the present disclosure further provides a timing advance group determination device, comprising a memory 520 , a transceiver 500 , and a processor 510 ;

[0322] The memory 520 is used to store computer programs; the transceiver 500 is used to send and receive data under the control of the processor; the processor 510 is used to read the computer program in the memory and perform the following operations:

[0323] Determine the value of the TAG association parameter according to the association relationship;

[0324] Sending a timing advance group TAG associated parameter with a determined value;

[0325] The association relationship includes at least one of the following:

[0326] The first association between the value of the TAG association parameter specified in the protocol and the TAG;

[0327] A second association relationship between the value of the TAG association parameter configured through the first indication information and the TAG;

[0328] A third association relationship between the value of the TAG association parameter and the primary timing advance group PTAG under a preset condition.

[0329] In FIG5 , the bus architecture may include any number of interconnected buses and bridges, specifically various circuits linked together by one or more processors represented by processor 510 and memory represented by memory 520. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 500 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium, such as a wireless channel, a wired channel, an optical cable, and the like. The processor 510 is responsible for managing the bus architecture and general processing, and the memory 520 may store data used by the processor 510 when performing operations.

[0330] The processor 510 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor may also adopt a multi-core architecture.

[0331] It should be noted here that the above-mentioned device provided in the embodiment of the present disclosure can implement all the method steps implemented in the above-mentioned embodiment of the method for determining the timing advance group applied to the network side device, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0332] As shown in FIG6 , an embodiment of the present disclosure further provides a device for determining a timing advance group, including:

[0333] An acquiring unit 601 is configured to acquire a value of a timing advance group TAG associated parameter;

[0334] A first determining unit 602 is configured to determine a target TAG associated with the value of the TAG association parameter according to the association relationship;

[0335] The association relationship includes at least one of the following:

[0336] The first association between the value of the TAG association parameter specified in the protocol and the TAG;

[0337] A second association relationship between the value of the TAG association parameter configured through the first indication information and the TAG;

[0338] a third association relationship between a value of the TAG association parameter and the primary timing advance group PTAG under a preset condition;

[0339] The preset condition includes at least one of the following:

[0340] The current state of the terminal is inactive or idle;

[0341] The TAG associated parameters are received through a contention random access procedure;

[0342] The terminal supports a multi-timing advance TA mechanism;

[0343] The time alignment timer TAT associated with the PTAG is not running;

[0344] The value of the TAG associated parameter belongs to a preset value range.

[0345] Optionally, the first association relationship is obtained based on a preset mapping rule;

[0346] The preset mapping rule is to associate different values ​​of the TAG association parameter according to a preset arrangement order of the TAG identifier, and the TAG identifier is a TAG identifier associated with a serving cell configured by the network for the terminal.

[0347] Optionally, the first determining unit is configured to determine, based on the third association relationship, a target PTAG associated with the value of the TAG association parameter when the preset condition is met.

[0348] Optionally, the first determining unit is configured to:

[0349] When the value of the TAG association parameter is a first preset value, determining, according to the third association relationship, that the target TAG is a first PTAG corresponding to the first preset value;

[0350] Alternatively, when the value of the TAG association parameter is a second preset value, the target TAG is determined to be a second PTAG corresponding to the second preset value according to the third association relationship.

[0351] Optionally, the TAG identifier of the first PTAG is a default identifier.

[0352] Optionally, the TAG identifier of the second PTAG satisfies at least one of the following:

[0353] The TAG identifier of the second PTAG is a target value specified by the protocol;

[0354] The TAG identifier of the second PTAG is configured by the network;

[0355] The TAG identifier of the second PTAG is determined based on terminal implementation;

[0356] The value of the TAG identifier of the second PTAG is different from the default identifier.

[0357] Optionally, the first determining unit includes:

[0358] an acquiring subunit, configured to acquire second indication information, where the second indication information is used to indicate whether the network supports a multi-TA mechanism;

[0359] A determination subunit is configured to determine, when the second indication information indicates that the network supports a multi-TA mechanism, a target TAG associated with the value of the TAG association parameter according to the association relationship.

[0360] Optionally, the third association relationship is obtained based on a mapping relationship between each preset value within a preset value range configured by the third indication information and the TAG identifier of the PTAG.

[0361] It should be noted here that the above-mentioned device provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned embodiment of the method for determining the timing advance group applied to the terminal, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0362] As shown in FIG7 , an embodiment of the present disclosure further provides a device for determining a timing advance group, the device comprising:

[0363] The second determining unit 701 is configured to determine a value of the TAG association parameter according to the association relationship;

[0364] The first sending unit 702 is configured to send a timing advance group TAG associated parameter having a determined value;

[0365] The association relationship includes at least one of the following:

[0366] The first association between the value of the TAG association parameter specified in the protocol and the TAG;

[0367] A second association relationship between the value of the TAG association parameter configured through the first indication information and the TAG;

[0368] a third association relationship between a value of the TAG association parameter and the primary timing advance group PTAG under a preset condition;

[0369] The preset condition includes at least one of the following:

[0370] The current state of the terminal is inactive or idle;

[0371] The terminal's TAG-associated parameters are received through the contention random access process;

[0372] The terminal supports multiple timing advance (TA) mechanisms;

[0373] The time alignment timer TAT associated with the PTAG is not running;

[0374] The value of the TAG associated parameter belongs to a preset value range.

[0375] Optionally, the apparatus according to the embodiment of the present disclosure further includes:

[0376] The second sending unit is used to send second indication information, where the second indication information is used to indicate whether the network supports the multi-TA mechanism.

[0377] Optionally, the apparatus according to the embodiment of the present disclosure further includes:

[0378] A first configuration unit, configured to configure the third association relationship based on third indication information;

[0379] The third indication information is used to configure a mapping relationship between each preset value within a preset value range and the TAG identifier of the PTAG.

[0380] Optionally, the apparatus according to the embodiment of the present disclosure further includes:

[0381] The second configuration unit is configured to perform at least one of the following:

[0382] Configuring a tag identifier associated with a second PTAG, where the second PTAG is a PTAG corresponding to a second preset value of a tag association parameter;

[0383] A preset value range of the value of the TAG associated parameter is configured. When the value of the TAG associated parameter falls within the preset value range, the TAG associated with the TAG associated parameter is PTAG.

[0384] It should be noted here that the above-mentioned device provided in the embodiment of the present disclosure can implement all the method steps implemented in the above-mentioned embodiment of the method for determining the timing advance group applied to the network side device, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0385] It should be noted that the division of units in the embodiments of the present disclosure is schematic and is merely a logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional units in the various embodiments of the present disclosure may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0386] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present disclosure is essentially or the part that contributes to the relevant technology or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the method described in each embodiment of the present disclosure. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0387] In some embodiments of the present disclosure, a processor-readable storage medium is also provided, which stores program instructions. The program instructions are used to enable the processor to execute all the steps implemented by the method embodiment for implementing the above-mentioned terminal execution or all the steps implemented by the method embodiment for implementing the network side device, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0388] The terminal device involved in the embodiments of the present disclosure may be a device that provides voice and / or data connectivity to a user, a handheld device with wireless connection function, or other processing device connected to a wireless modem. In different systems, the name of the terminal device may also be different. For example, in the 5th generation (5G) th In the 5G (5th Generation) system, terminal devices can be called user equipment (UE). Wireless terminal devices can communicate with one or more core networks (CN) via the radio access network (RAN). Wireless terminal devices can be mobile terminal devices, such as mobile phones (or "cellular" phones) and computers with mobile terminal devices. For example, they can be portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile devices that exchange voice and / or data with the radio access network. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), and other devices. The wireless terminal device may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote terminal device, an access terminal device, a user terminal device, a user agent, or a user device, but is not limited in the embodiments of the present disclosure.

[0389] The network device (or network-side device) involved in the embodiments of the present disclosure may be a base station, which may include multiple cells providing services to terminals. Depending on the specific application scenario, the base station may also be called an access point, or may be a device in an access network that communicates with a wireless terminal device through one or more sectors on an air interface, or may be called another name. The network device may be used to interchange received air frames with Internet Protocol (IP) packets, acting as a router between the wireless terminal device and the rest of the access network, wherein the rest of the access network may include an Internet Protocol (IP) communication network. The network device may also coordinate attribute management of the air interface. For example, the network device involved in the embodiments of the present disclosure may be a base transceiver station (BTS) in the Global System for Mobile communications (GSM) or code division multiple access (CDMA), a network device (NodeB) in wide-band code division multiple access (WCDMA), an evolutionary Node B (eNB or e-NodeB) in the Long Term Evolution (LTE) system, a 5G base station (gNB) in the 5G network architecture, a home evolved Node B (HeNB), a relay node, a femto, a pico, etc., and is not limited in the embodiments of the present disclosure. In some network structures, the network device may include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit may also be geographically separated.

[0390] Network devices and terminal devices can each use one or more antennas for Multiple Input Multiple Output (MIMO) transmission. MIMO transmission can be single-user MIMO (SU-MIMO) or multi-user MIMO (MU-MIMO). Depending on the configuration and number of antenna combinations, MIMO transmission can be two-dimensional MIMO (2D-MIMO), three-dimensional MIMO (3D-MIMO), full-dimensional MIMO (FD-MIMO), or massive MIMO. It can also use diversity transmission, precoding, or beamforming.

[0391] Those skilled in the art will appreciate that the embodiments of the present disclosure may be provided as methods, systems, or computer program products. Therefore, the present disclosure may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present disclosure may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage and optical storage, etc.) containing computer-usable program code.

[0392] The present disclosure is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present disclosure. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer-executable instructions. These computer-executable instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0393] These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the processor-readable memory produce a product including an instruction device that implements the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0394] These processor-executable instructions may also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, whereby the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0395] Obviously, those skilled in the art may make various changes and modifications to the present disclosure without departing from the spirit and scope of the present disclosure. Thus, if these modifications and variations of the present disclosure fall within the scope of the claims of the present disclosure and their equivalents, the present disclosure is intended to include these modifications and variations.

Claims

1. A method for determining a timing advance group, performed by a terminal, the method comprising: Get the value of the timing advance group TAG associated parameter; Determine, according to the association relationship, a target TAG associated with the value of the TAG association parameter; The association relationship includes at least one of the following: The first association relationship between the value of the TAG association parameter specified in the protocol and the TAG; A second association relationship between the value of the TAG association parameter configured by the first indication information and the TAG; A third association relationship between a value of the TAG association parameter and a primary timing advance group PTAG under a preset condition; The preset condition includes at least one of the following: The current state of the terminal is an inactive state or an idle state; The TAG associated parameters are received through a contention random access procedure; The terminal supports a multi-timing advance TA mechanism; The time alignment timer TAT associated with PTAG is not running; The value of the TAG associated parameter belongs to a preset value range.

2. The method according to claim 1, wherein: The first association relationship is obtained based on a preset mapping rule; The preset mapping rule is to associate different values ​​of the TAG association parameter according to a preset arrangement order of the TAG identifier, and the TAG identifier is a TAG identifier associated with a serving cell configured by the network for the terminal.

3. The method according to claim 1, wherein: The determining, according to the association relationship, a target TAG associated with the value of the TAG association parameter includes: When the preset condition is met, a target PTAG associated with the value of the TAG association parameter is determined according to the third association relationship.

4. The method according to claim 1 or 3, wherein: The determining, according to the association relationship, a target TAG associated with the value of the TAG association parameter includes: When the value of the TAG association parameter is a first preset value, determining, according to the third association relationship, that the target TAG is a first PTAG corresponding to the first preset value; Alternatively, when the value of the TAG association parameter is the second preset value, the target TAG is determined to be a second PTAG corresponding to the second preset value according to the third association relationship.

5. The method according to claim 4, wherein: The TAG identifier of the first PTAG is a default identifier.

6. The method according to claim 4, wherein: The TAG identifier of the second PTAG satisfies at least one of the following: The TAG identifier of the second PTAG is a target value specified by the protocol; The TAG identifier of the second PTAG is configured by the network; The TAG identifier of the second PTAG is determined based on terminal implementation; The value of the TAG identifier of the second PTAG is different from the value of the default identifier.

7. The method according to claim 1, wherein: The determining, according to the association relationship, a target TAG associated with the value of the TAG association parameter includes: Acquire second indication information, where the second indication information is used to indicate whether the network supports a multi-TA mechanism; When the second indication information indicates that the network supports a multi-TA mechanism, a target TAG associated with the value of the TAG association parameter is determined according to the association relationship.

8. The method according to claim 1, wherein: The third association relationship is obtained based on the mapping relationship between each preset value within the preset value range configured by the third indication information and the TAG identifier of the PTAG.

9. A method for determining a timing advance group, performed by a network side device, the method comprising: According to the association relationship, determine the value of the TAG association parameter; Sending a timing advance group TAG associated parameter with a determined value; The association relationship includes at least one of the following: The first association relationship between the value of the TAG association parameter specified in the protocol and the TAG; A second association relationship between the value of the TAG association parameter configured by the first indication information and the TAG; A third association relationship between a value of the TAG association parameter and a primary timing advance group PTAG under a preset condition; The preset condition includes at least one of the following: The current state of the terminal is inactive or idle; The TAG associated parameters of the terminal are received through the contention random access process; The terminal supports multiple timing advance TA mechanisms; The time alignment timer TAT associated with PTAG is not running; The value of the TAG associated parameter belongs to a preset value range.

10. The method according to claim 9, further comprising: Send second indication information, where the second indication information is used to indicate whether the network supports the multi-TA mechanism.

11. The method according to claim 9, further comprising: Configuring the third association relationship based on the third indication information; The third indication information is used to configure a mapping relationship between each preset value within a preset value range and the TAG identifier of the PTAG.

12. The method according to claim 9, further comprising at least one of the following: Configure a TAG identifier associated with a second PTAG, where the second PTAG is a PTAG corresponding to a value of a TAG association parameter that is a second preset value; A preset value range of a value of a TAG associated parameter is configured. When the value of the TAG associated parameter belongs to the preset value range, the TAG associated with the TAG associated parameter is PTAG.

13. A timing advance group determination device, comprising a memory, a transceiver, and a processor; Memory for storing computer programs; a transceiver, for transmitting and receiving data under the control of the processor; A processor is configured to read the computer program in the memory and perform the following operations: Get the value of the timing advance group TAG associated parameter; Determine, according to the association relationship, a target TAG associated with the value of the TAG association parameter; The association relationship includes at least one of the following: The first association relationship between the value of the TAG association parameter specified in the protocol and the TAG; A second association relationship between the value of the TAG association parameter configured by the first indication information and the TAG; A third association relationship between a value of the TAG association parameter and a primary timing advance group PTAG under a preset condition; The preset condition includes at least one of the following: The current state of the terminal is inactive or idle; The TAG associated parameters are received through a contention random access procedure; The terminal supports a multi-timing advance TA mechanism; The time alignment timer TAT associated with PTAG is not running; The value of the TAG associated parameter belongs to a preset value range.

14. The device according to claim 13, wherein: The first association relationship is obtained based on a preset mapping rule; The preset mapping rule is to associate different values ​​of the TAG association parameter according to a preset arrangement order of the TAG identifier, and the TAG identifier is a TAG identifier associated with a serving cell configured by the network for the terminal.

15. The device according to claim 13, wherein: The processor also implements the following steps: When the preset condition is met, a target PTAG associated with the value of the TAG association parameter is determined according to the third association relationship.

16. The device according to claim 13 or 15, wherein: The processor also implements the following steps: When the value of the TAG association parameter is a first preset value, determining, according to the third association relationship, that the target TAG is a first PTAG corresponding to the first preset value; When the value of the TAG association parameter is the second preset value, the target TAG is determined to be a second PTAG corresponding to the second preset value according to the third association relationship.

17. The device according to claim 16, wherein: The TAG identifier of the first PTAG is a default identifier.

18. The device according to claim 16, wherein: The TAG identifier of the second PTAG satisfies at least one of the following: The TAG identifier of the second PTAG is a target value specified by the protocol; The TAG identifier of the second PTAG is configured by the network; The TAG identifier of the second PTAG is determined based on terminal implementation; The value of the TAG identifier of the second PTAG is different from the value of the default identifier.

19. The device according to claim 13, wherein: The processor also implements the following steps: Acquire second indication information, where the second indication information is used to indicate whether the network supports a multi-TA mechanism; When the second indication information indicates that the network supports a multi-TA mechanism, a target TAG associated with the value of the TAG association parameter is determined according to the association relationship.

20. The device according to claim 13, wherein: The third association relationship is obtained based on the mapping relationship between each preset value within the preset value range configured by the third indication information and the TAG identifier of the PTAG.

21. A timing advance group determination device, comprising a memory, a transceiver, and a processor; Memory for storing computer programs; a transceiver, for transmitting and receiving data under the control of the processor; A processor is configured to read the computer program in the memory and perform the following operations: According to the association relationship, determine the value of the TAG association parameter; Sending a timing advance group TAG associated parameter with a determined value; The association relationship includes at least one of the following: The first association relationship between the value of the TAG association parameter specified in the protocol and the TAG; A second association relationship between the value of the TAG association parameter configured by the first indication information and the TAG; A third association relationship between a value of the TAG association parameter and a primary timing advance group PTAG under a preset condition; The preset condition includes at least one of the following: The current state of the terminal is inactive or idle; The TAG associated parameters of the terminal are received through the contention random access process; The terminal supports multiple timing advance TA mechanisms; The time alignment timer TAT associated with PTAG is not running; The value of the TAG associated parameter belongs to a preset value range.

22. The device according to claim 21, wherein The processor also implements the following steps: Send second indication information, where the second indication information is used to indicate whether the network supports the multi-TA mechanism.

23. The device according to claim 21, wherein The processor also implements the following steps: Configuring the third association relationship based on the third indication information; The third indication information is used to configure a mapping relationship between each preset value within a preset value range and the TAG identifier of the PTAG.

24. The device according to claim 21, wherein The processor further implements at least one of the following steps: Configure a TAG identifier associated with a second PTAG, where the second PTAG is a PTAG corresponding to a value of a TAG association parameter that is a second preset value; A preset value range of a value of a TAG associated parameter is configured. When the value of the TAG associated parameter belongs to the preset value range, the TAG associated with the TAG associated parameter is PTAG.

25. A device for determining a timing advance group, comprising: An acquiring unit, used to acquire a value of a timing advance group TAG associated parameter; A first determining unit, configured to determine a target TAG associated with the value of the TAG association parameter according to the association relationship; The association relationship includes at least one of the following: The first association relationship between the value of the TAG association parameter specified in the protocol and the TAG; A second association relationship between the value of the TAG association parameter configured by the first indication information and the TAG; A third association relationship between a value of the TAG association parameter and a primary timing advance group PTAG under a preset condition; The preset condition includes at least one of the following: The current state of the terminal is inactive or idle; The TAG associated parameters are received through a contention random access procedure; The terminal supports a multi-timing advance TA mechanism; The time alignment timer TAT associated with PTAG is not running; The value of the TAG associated parameter belongs to a preset value range.

26. The device according to claim 25, wherein The first association relationship is obtained based on a preset mapping rule; The preset mapping rule is to associate different values ​​of the TAG association parameter according to a preset arrangement order of the TAG identifier, and the TAG identifier is a TAG identifier associated with a serving cell configured by the network for the terminal.

27. The device according to claim 25, wherein: The first determining unit is configured to determine, when the preset condition is met, a target PTAG associated with the value of the TAG association parameter according to the third association relationship.

28. The device according to claim 25 or 27, wherein: The first determining unit is used for: When the value of the TAG association parameter is a first preset value, determining, according to the third association relationship, that the target TAG is a first PTAG corresponding to the first preset value; Alternatively, when the value of the TAG association parameter is the second preset value, the target TAG is determined to be a second PTAG corresponding to the second preset value according to the third association relationship.

29. The device according to claim 28, wherein The TAG identifier of the first PTAG is a default identifier.

30. The device according to claim 28, wherein The TAG identifier of the second PTAG satisfies at least one of the following: The TAG identifier of the second PTAG is a target value specified by the protocol; The TAG identifier of the second PTAG is configured by the network; The TAG identifier of the second PTAG is determined based on terminal implementation; The value of the TAG identifier of the second PTAG is different from the value of the default identifier.

31. The device according to claim 25, wherein: The first determining unit includes: an acquisition subunit, configured to acquire second indication information, where the second indication information is used to indicate whether the network supports a multi-TA mechanism; A determination subunit is used to determine a target TAG associated with the value of the TAG association parameter according to the association relationship when the second indication information indicates that the network supports a multi-TA mechanism.

32. The apparatus of claim 25, wherein: The third association relationship is obtained based on the mapping relationship between each preset value within the preset value range configured by the third indication information and the TAG identifier of the PTAG.

33. A device for determining a timing advance group, the device comprising: A second determining unit, configured to determine a value of a TAG association parameter according to the association relationship; A first sending unit, configured to send a timing advance group TAG associated parameter having a determined value; The association relationship includes at least one of the following: The first association relationship between the value of the TAG association parameter specified in the protocol and the TAG; A second association relationship between the value of the TAG association parameter configured by the first indication information and the TAG; A third association relationship between a value of the TAG association parameter and a primary timing advance group PTAG under a preset condition; The preset condition includes at least one of the following: The current state of the terminal is inactive or idle; The TAG associated parameters of the terminal are received through the contention random access process; The terminal supports multiple timing advance TA mechanisms; The time alignment timer TAT associated with PTAG is not running; The value of the TAG associated parameter belongs to a preset value range.

34. The apparatus of claim 33, further comprising: The second sending unit is used to send second indication information, where the second indication information is used to indicate whether the network supports the multi-TA mechanism.

35. The apparatus of claim 33, further comprising: A first configuration unit, configured to configure the third association relationship based on third indication information; The third indication information is used to configure a mapping relationship between each preset value within a preset value range and the TAG identifier of the PTAG.

36. The apparatus of claim 33, further comprising: The second configuration unit is configured to perform at least one of the following: Configure a TAG identifier associated with a second PTAG, where the second PTAG is a PTAG corresponding to a value of a TAG association parameter that is a second preset value; A preset value range of a value of a TAG associated parameter is configured. When the value of the TAG associated parameter belongs to the preset value range, the TAG associated with the TAG associated parameter is PTAG.

37. A processor-readable storage medium storing a computer program, wherein the computer program is used to cause the processor to execute the steps of the method for determining a timing advance group as described in any one of claims 1 to 8, or to execute the steps of the method for determining a timing advance group as described in any one of claims 9 to 12.

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