Information processing method and device, information sending method and device, terminal, network equipment and storage medium

Abstract

The invention relates to the technical field of communication, in particular to an information processing and sending method and device, a terminal, network equipment and a storage medium, and the information processing and sending method comprises the steps: determining a first condition according to a predefined rule or indication information sent by the network equipment; determining a first timing advance (TA) in at least one TA according to the first condition; and maintaining the first TA. According to the method and the device, for at least one TA, the terminal does not need to be completely maintained, but the first TA can be determined in the at least one TA according to the first condition, so that the first TA is maintained. Therefore, overhigh overhead caused by excessive TA maintenance of the terminal can be avoided, and the performance and endurance of the terminal can be ensured.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of communication, and in particular, to an information processing method, an information sending method, an information processing apparatus, an information sending apparatus, a terminal, a network device, a communication device, and a storage medium. BACKGROUND

[0002] In order to improve the efficiency of terminal switching cells, a layer 1 / layer 2 triggered mobility (L1 / L2-triggered Mobility, LTM) is proposed.

[0003] In the LTM process, the network device can provide one or more candidate configurations for the terminal, wherein one candidate configuration can include the configuration of one or more cells (or cell groups). The network device can subsequently control the terminal to change in the multiple candidate configurations through L1 (for example, DCI (Downlink Control Information)) or L2 (MAC CE (Control Element)) signaling, for example, changing the working cell (or cell group) from cell (or cell group)-1 to cell (or cell group)-2. Currently, LTM is also supported based on conditions.

[0004] However, in the LTM process, there are still some technical problems to be solved. SUMMARY

[0005] Embodiments of the present disclosure provide an information processing method, an information sending method, an information processing apparatus, an information sending apparatus, a terminal, a network device, and a storage medium to solve the technical problems in the related art.

[0006] According to a first aspect of embodiments of the present disclosure, an information processing method is provided, executed by a terminal, and the method comprises: determining a first condition according to a predefined rule or indication information sent by a network device; determining a first timing advance (TA) in at least one TA according to the first condition; and maintaining the first TA.

[0007] According to a second aspect of embodiments of the present disclosure, an information sending method is provided, executed by a network device, and the method comprises: sending indication information to a terminal, wherein the indication information is used to indicate a first condition, and the first condition is used for the terminal to determine a first TA that needs to be in at least one timing advance (TA).

[0008] According to a third aspect of embodiments of the present disclosure, an information processing apparatus is provided, the apparatus comprising: a processing module configured to determine a first condition according to a predefined rule, or a receiving module configured to receive indication information sent by a network device, wherein the indication information is used to indicate the first condition; the processing module is further configured to determine a first timing advance (TA) in at least one TA according to the first condition; and maintain the first TA.

[0009] According to a fourth aspect of embodiments of the present disclosure, an information sending apparatus is provided, the apparatus comprising: a sending module configured to send indication information to a terminal, wherein the indication information is used to indicate a first condition, and the first condition is used by the terminal to determine a first TA in at least one TA.

[0010] According to a fifth aspect of embodiments of the present disclosure, a terminal is provided, comprising: one or more processors; wherein the terminal is configured to implement the information processing method of the first aspect.

[0011] According to a sixth aspect of embodiments of the present disclosure, a network device is provided, comprising: one or more processors; wherein the network device is configured to implement the information sending method of the second aspect.

[0012] According to a seventh aspect of embodiments of the present disclosure, a communication system is provided, comprising a terminal and a network device, wherein the terminal is configured to implement the information processing method of the first aspect, and the network device is configured to implement the information sending method of the second aspect.

[0013] According to an eighth aspect of embodiments of the present disclosure, a storage medium is provided, the storage medium storing instructions which, when executed on a communication device, cause the communication device to implement the information processing method of the first aspect, and / or the information sending method of the second aspect.

[0014] According to a ninth aspect of embodiments of the present disclosure, a program product is provided, which, when executed on a communication device, causes the communication device to implement the information processing method of the first aspect, and / or the information sending method of the second aspect.

[0015] According to embodiments of the present disclosure, for at least one TA, the terminal can not necessarily maintain all, but can determine a first TA in at least one TA according to a first condition, and then maintain the first TA. Accordingly, it is beneficial to avoid the terminal maintaining too many TAs and causing excessive overhead, and it is beneficial to ensure the performance and endurance of the terminal. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the embodiments description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0017] Figure 1A is an architecture schematic diagram of a communication system according to an embodiment of the present disclosure.

[0018] Figure 1B is a schematic diagram of an LTM process according to an embodiment of the present disclosure.

[0019] Figure 1C is a schematic diagram of a network device acquiring TA according to an embodiment of the present disclosure.

[0020] Figure 1D is a schematic diagram of a terminal calculating TA according to an embodiment of the present disclosure.

[0021] Figure 1E is another schematic diagram of a terminal calculating TA according to an embodiment of the present disclosure.

[0022] Figure 2 is an interaction schematic diagram of an information processing method according to an embodiment of the present disclosure.

[0023] Figure 3 is a schematic block diagram of an information processing apparatus according to an embodiment of the present disclosure.

[0024] Figure 4 is a schematic block diagram of an information sending apparatus according to an embodiment of the present disclosure.

[0025] Figure 5A is a structure schematic diagram of a communication device according to an embodiment of the present disclosure.

[0026] Figure 5B is a structure schematic diagram of a chip according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0027] Embodiments of the present disclosure propose an information processing, sending method and apparatus, a terminal, a network device and a storage medium.

[0028] In a first aspect, embodiments of the present disclosure propose an information processing method, executed by a terminal, comprising: determining a first condition according to a predefined rule or indication information sent by a network device; determining a first TA in at least one TA according to the first condition; and maintaining the first TA.

[0029] In the above embodiments, for at least one TA, the terminal can not necessarily maintain all, but can determine a first TA in the at least one TA according to a first condition, and then maintain the first TA. In this way, it is beneficial to avoid the terminal maintaining too many TAs and causing excessive overhead, and it is beneficial to ensure the performance and endurance of the terminal.

[0030] In combination with some embodiments of the first aspect. In some embodiments, the at least one TA is one of: a second TA; the second TA and a third TA; wherein the second TA is a TA maintained by the terminal, and the third TA is a TA indicated by the network device in a case where a quantity of the second TA is equal to a threshold value.

[0031] In combination with some embodiments of the first aspect. In some embodiments, in a case where the at least one TA is the second TA, the method further includes: maintaining the third TA; wherein a sum of a quantity of the third TA and a quantity of the first TA is less than or equal to the quantity threshold value.

[0032] In combination with some embodiments of the first aspect. In some embodiments, the first condition includes at least one of: a TA corresponding to a first cell in which a measurement result of a cell corresponding to the at least one TA satisfies a first measurement requirement; a TA corresponding to a first beam in which a measurement result of a beam corresponding to the at least one TA satisfies a second measurement requirement; a TA corresponding to an activated TCI state in a TCI state corresponding to the at least one TA; a TA obtained through an indication of a network device in the at least one TA; a TA corresponding to a cell that satisfies a first condition in a candidate cell corresponding to the at least one TA, wherein the first condition is a first condition based on a condition-based mobility; a TA corresponding to a serving cell; and a TA corresponding to a first remaining maintenance duration that satisfies a duration requirement in a remaining maintenance duration corresponding to the at least one TA.

[0033] In combination with some embodiments of the first aspect. In some embodiments, the method further includes: sending, to the network device, first information, wherein the first information is used to indicate a quantity of TAs supported by the terminal to maintain.

[0034] In combination with some embodiments of the first aspect. In some embodiments, the method further includes: sending, to the network device, second information, wherein the second information is used to indicate at least one of: a quantity of TAs maintained by the terminal; an identifier corresponding to a TA maintained by the terminal; an identifier corresponding to a TA not maintained by the terminal; an identifier corresponding to a fourth TA stopped from being maintained by the terminal; and a reason for stopping the terminal from maintaining the fourth TA.

[0035] In some embodiments of the first aspect. In some embodiments, the method further includes: sending, to the network device, third information, wherein the third information is used to indicate at least one of the following: an identity of a TA that the network device is requested to maintain; an identity of a TA that the network device is requested to delete; a reason for requesting the network device to delete a TA.

[0036] In a second aspect, embodiments of the present disclosure provide a method for sending information, performed by a network device, the method comprising: sending, to a terminal, indication information, wherein the indication information is used to indicate a first condition for the terminal to determine a first TA that needs to be maintained among at least one TA.

[0037] In some embodiments of the second aspect. In some embodiments, the at least one TA is one of the following: a second TA maintained by the terminal; the second TA and a third TA; wherein the second TA is a TA maintained by the terminal, and the third TA is a TA indicated by the network device in a case where a quantity of the second TA is equal to a threshold value.

[0038] In some embodiments of the second aspect. In some embodiments, the first TA includes at least one of the following: a TA corresponding to a first cell in a cell corresponding to the at least one TA, a measurement result of the first cell satisfying a first measurement requirement; a TA corresponding to a first beam in a beam corresponding to the at least one TA, a measurement result of the first beam satisfying a second measurement requirement; a TA corresponding to an activated TCI state in a TCI state corresponding to the at least one TA; a TA obtained by indication of the network device in the at least one TA; a TA corresponding to a cell satisfying a first condition in a candidate cell corresponding to the at least one TA, wherein the first condition is a first condition corresponding to a condition-based mobility; a TA corresponding to a serving cell; a TA corresponding to a first remaining maintenance duration satisfying a duration requirement in a remaining maintenance duration corresponding to the at least one TA.

[0039] In some embodiments of the second aspect. In some embodiments, the method further includes: receiving first information sent by the terminal, wherein the first information is used to indicate a quantity of TAs supported by the terminal to maintain.

[0040] In some embodiments of the second aspect. In some embodiments, the method further includes: receiving second information sent by the terminal, wherein the second information is used to indicate at least one of the following: a quantity of TAs maintained by the terminal; an identity of a TA maintained by the terminal; an identity of a TA not maintained by the terminal; an identity of a fourth TA stopped by the terminal to maintain; a reason for the terminal to stop maintaining the fourth TA.

[0041] In combination with some embodiments of the second aspect. In some embodiments, the method further includes: receiving third information sent by the terminal, wherein the third information is used to indicate at least one of the following: an identifier corresponding to a TA requested to be maintained by the network device; an identifier corresponding to a TA requested to be deleted by the network device; a reason for requesting the network device to delete a TA.

[0042] In a third aspect, embodiments of the present disclosure provide an information processing apparatus, the apparatus comprising: a processing module configured to determine a first condition according to a predefined rule, or a receiving module configured to receive indication information sent by a network device, wherein the indication information is used to indicate the first condition; the processing module is further configured to determine a first TA in at least one timing advance TA according to the first condition; and maintain the first TA.

[0043] In a fourth aspect, embodiments of the present disclosure provide an information sending apparatus, the apparatus comprising: a sending module configured to send indication information to a terminal, wherein the indication information is used to indicate a first condition, and the first condition is used by the terminal to determine a first TA that needs to be maintained in at least one timing advance TA.

[0044] In a fifth aspect, embodiments of the present disclosure provide a terminal, comprising: one or more processors; wherein the terminal is configured to perform the information processing method of the first aspect or any one of the optional implementations of the first aspect.

[0045] In a sixth aspect, embodiments of the present disclosure provide a network device, comprising: one or more processors; wherein the network device is configured to perform the information sending method of the second aspect or any one of the optional implementations of the second aspect.

[0046] In a seventh aspect, embodiments of the present disclosure provide a communication system, comprising a terminal and a network device, wherein the terminal is configured to implement the information processing method of the first aspect or any one of the optional implementations of the first aspect, and the network device is configured to implement the information sending method of the second aspect or any one of the optional implementations of the second aspect.

[0047] In an eighth aspect, embodiments of the present disclosure provide a storage medium, the storage medium storing instructions that, when executed on a communication device, cause the communication device to perform the information processing method of the first aspect or any one of the optional implementations of the first aspect, and / or the information sending method of the second aspect or any one of the optional implementations of the second aspect.

[0048] In a ninth aspect, embodiments of the present disclosure provide a program product, which, when executed by a communication device, causes the communication device to perform the information processing method of the first aspect, any of the optional implementations of the first aspect, and / or the information sending method of the second aspect, any of the optional implementations of the second aspect.

[0049] In a tenth aspect, embodiments of the present disclosure provide a computer program, which, when executed on a computer, causes the computer to perform the information processing method of the first aspect, any of the optional implementations of the first aspect, and / or the information sending method of the second aspect, any of the optional implementations of the second aspect.

[0050] It can be understood that the above information processing and sending apparatus, communication device, communication system, storage medium, program product, and computer program are all used to perform the method provided by the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved thereby can refer to the beneficial effects in the corresponding method, which will not be described herein again.

[0051] Embodiments of the present disclosure provide information processing and sending methods and apparatuses, terminals, network devices, and storage media. In some embodiments, the information processing and sending method and the information processing method, communication method, and other terms can be replaced with each other, the information processing and sending apparatus and the information processing apparatus, communication apparatus, and other terms can be replaced with each other, and the information processing system and the communication system and other terms can be replaced with each other.

[0052] Embodiments of the present disclosure are not exhaustive, but are only a part of the embodiments, and are not specific limitations on the protection scope of the present disclosure. In the case of no contradiction, each step in an embodiment can be implemented as an independent embodiment, and the steps can be combined arbitrarily, for example, the scheme after removing some steps in an embodiment can also be implemented as an independent embodiment, and the order of the steps in an embodiment can be exchanged arbitrarily, in addition, the optional implementation in an embodiment can be combined arbitrarily; in addition, the embodiments can be combined arbitrarily, for example, the steps of different embodiments or part or all of the steps of different embodiments can be combined arbitrarily, an embodiment can be combined with the optional implementation of other embodiments.

[0053] In each embodiment of the present disclosure, the terms and / or descriptions between the embodiments are consistent if there is no special description and logical conflict, and can be referred to each other, and the technical features in different embodiments can be combined to form a new embodiment according to their inherent logical relationship.

[0054] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments, and not as a limitation on the present disclosure.

[0055] In the embodiments of the present disclosure, an element represented in a singular form, such as "a", "an", "the", "said", "the aforementioned", "the foregoing", "this", and the like, unless otherwise specified, can represent "one and only one", or can represent "one or more", "at least one", and the like.

[0056] For example, in the case of using an article such as "a", "an", "the", and the like in translation, the noun after the article can be understood as a singular expression, or can be understood as a plural expression.

[0057] In the embodiments of the present disclosure, "plurality" means two or more.

[0058] In some embodiments, the terms "at least one of", "one or more", "a plurality of", "multiple", and the like can be replaced with each other.

[0059] In some embodiments, the description manner such as "at least one of A, B", "A and / or B", "A in one case, B in another case", "in response to a case A, in response to another case B", and the like can include the following technical solutions according to the case: A in some embodiments (A is executed regardless of B); B in some embodiments (B is executed regardless of A); A and B are selectively executed in some embodiments (A and B are selected to be executed); A and B are executed in some embodiments (A and B are both executed). When there are more branches such as A, B, C, and the like, it is similar to the above.

[0060] In some embodiments, the description manner such as "A or B" and the like can include the following technical solutions according to the case: A in some embodiments (A is executed regardless of B); B in some embodiments (B is executed regardless of A); A and B are selectively executed in some embodiments (A and B are selected to be executed). When there are more branches such as A, B, C, and the like, it is similar to the above.

[0061] The prefix words "first", "second", and the like in the embodiments of the present disclosure are only used to distinguish different description objects, and do not constitute a limitation on the position, order, priority, quantity, or content of the description objects. The description of the description objects should be referred to the description in the context of the claims or embodiments, and should not constitute an unnecessary limitation because of the use of the prefix words.

[0062] For example, the ordinal numbers before the description object "field" in "the first field" and "the second field" do not limit the positions or orders between the "fields", and "the first" and "the second" do not limit whether the "fields" they modify are in the same message or not, nor do they limit the orders of "the first field" and "the second field". For another example, the ordinal numbers before the description object "level" in "the first level" and "the second level" do not limit the priorities between the "levels". For another example, the quantity of the description object is not limited by the ordinal numbers, and can be one or more. For example, the description object is "apparatus", and "the first apparatus" and "the second apparatus" can be the same apparatus or different apparatuses, and their types can be the same or different. For another example, the description object is "information", and "the first information" and "the second information" can be the same information or different information, and their contents can be the same or different.

[0063] In some embodiments, "comprising A", "including A", "for indicating A", "carrying A" can be interpreted as directly carrying A, or indirectly indicating A.

[0064] In some embodiments, the terms "in response to", "in response to determining", "in the case of", "when", "when", "if", "if" and the like can be replaced with each other.

[0065] In some embodiments, the terms "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not lower than", "above" and the like can be replaced with each other, and the terms "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", "below" and the like can be replaced with each other.

[0066] In some embodiments, the apparatus and the like can be interpreted as physical or virtual, and the name thereof is not limited to the name recorded in the embodiments. The terms "apparatus", "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject" and the like can be replaced with each other.

[0067] In some embodiments, "network" can be interpreted as an apparatus (for example, access network device, core network device, etc.) contained in the network.

[0068] In some embodiments, the terms “access network device (AN device),” “radio access network device (RAN device),” “base station (BS),” “radio base station,” “fixed station,” “node,” “access point,” “transmission point (TP),” “reception point (RP),” “transmission / reception point (TRP),” “panel,” “antenna panel,” “antenna array,” “cell,” “macro cell,” “small cell,” “femto cell,” “pico cell,” “sector,” “cell group,” “serving cell,” “carrier,” “component carrier,” “bandwidth part (BWP),” and the like can be used interchangeably.

[0069] In some embodiments, the terms "terminal," "terminal device," "user equipment (UE)," "user terminal," "mobile station (MS)," "mobile terminal (MT)," "subscriber station," "mobile unit," "subscriber unit," "wireless unit," "remote unit," "mobile device," "wireless device," "wireless communication device," "remote device," "mobile subscriber station," "access terminal," "mobile terminal," "wireless terminal," "remote terminal," "handset," "user agent," "mobile client," "client," and so on can be replaced with each other.

[0070] In some embodiments, the access network device, the core network device, or the network device can be replaced with a terminal. For example, the embodiments of the present disclosure can also be applied to a structure in which communication between the access network device, the core network device, or the network device and the terminal is replaced with communication between a plurality of terminals (e.g., device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, the terminal can also be configured to have all or part of the functions of the access network device. In addition, the terms "uplink," "downlink," and the like can also be replaced with terms corresponding to the inter-terminal communication (e.g., "side"). For example, the uplink channel, the downlink channel, and the like can be replaced with the side channel, and the uplink, the downlink, and the like can be replaced with the sidelink.

[0071] In some embodiments, the terminal can be replaced with the access network device, the core network device, or the network device. In this case, the access network device, the core network device, or the network device can also be configured to have all or part of the functions of the terminal.

[0072] In some embodiments, obtaining data, information, etc. can comply with laws and regulations of the country where the location is.

[0073] In some embodiments, data, information, etc. can be obtained after obtaining user consent.

[0074] In addition, each element, each row, or each column in the table of the embodiments of the present disclosure can be implemented as an independent embodiment, and any combination of any element, any row, or any column can also be implemented as an independent embodiment.

[0075] Figure 1A is an architecture schematic diagram of a communication system according to the embodiments of the present disclosure.

[0076] As shown in Figure 1A , the communication system 100 includes a terminal 101 and a network device 102, where the network device includes at least one of the following: an access network device, a core network device.

[0077] In some embodiments, the terminal 101 includes at least one of the following, but is not limited thereto: a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a Pad, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in smart grid, a wireless terminal device in transportation safety, a wireless terminal device in smart city, a wireless terminal device in smart home, etc.

[0078] In some embodiments, the access network device is, for example, a node or device that accesses a terminal to a wireless network, and the access network device can include at least one of an evolved NodeB (eNB) in a 5G communication system, a next generation eNB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved node B (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an Open RAN, a Cloud RAN, a base station in other communication systems, an access node in a Wi-Fi system, but is not limited thereto.

[0079] In some embodiments, the core network device can be one device including one or more network elements, or can be multiple devices or device groups including all or part of the one or more network elements described above. The network element can be virtual or physical. The core network includes, for example, at least one of an evolved packet core (EPC), a 5G core network (5GCN), and a next generation core (NGC).

[0080] In some embodiments, the technical solutions of the present disclosure can be applied to an Open RAN architecture, at which time the interfaces between or within the access network devices involved in the embodiments of the present disclosure can become internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be realized by software or programs.

[0081] In some embodiments, the access network device can be composed of a central unit (CU) and a distributed unit (DU), where the CU can also be referred to as a control unit. The CU-DU structure can split the protocol layers of the access network device, and some of the protocol layers are controlled by the CU, and the remaining or all of the protocol layers are distributed in the DU and controlled by the CU, but is not limited thereto.

[0082] It can be understood that the communication system described in the embodiments of the present disclosure is for more clearly illustrating the technical solutions of the embodiments of the present disclosure, and does not constitute a limitation on the technical solutions proposed by the embodiments of the present disclosure. Those skilled in the art can know that, with the evolution of system architecture and the appearance of new business scenarios, the technical solutions proposed by the embodiments of the present disclosure are also applicable to similar technical problems.

[0083] The embodiments of the present disclosure described below can be applied to Figure 1A The communication system 100 shown or part of the subject, but not limited thereto. Figure 1A The subjects shown are examples, and the communication system can include Figure 1A All or part of the subjects in Figure 1A Other subjects, the number and form of each subject is arbitrary, each subject can be real or virtual, the connection between each subject is an example, each subject can not be connected or connected, its connection can be any way, can be direct connection or indirect connection, can be wired or wireless connection.

[0084] Embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (Bluetooth (registered trademark)), Public Land Mobile Network (PLMN) network, Device-to-Device (D2D) system, Machine to Machine (M2M) system, Internet of Things (IoT) system, Vehicle-to-Everything (V2X), system using other communication methods, next-generation system expanded based on them, or the like. In addition, a plurality of systems can be combined (for example, combination of LTE or LTE-A and 5G, or the like).

[0085] In some embodiments, the network device can provide one or more candidate configurations for the terminal, wherein one candidate configuration can include configuration of one or more cells (or cell groups).

[0086] The network device can subsequently control the terminal to change in the multiple candidate configurations through L1 (for example, DCI (Downlink Control Information)) and / or L2 (MAC CE (Control Element)) signaling and / or RRC signaling, for example, changing the working cell (or cell group) from cell (or cell group)-1 to cell (or cell group)-2.

[0087] For example, the control signaling can be referred to as cell change control signaling. For example, the process can be referred to as an L1 / L2-triggered mobility (LTM) process.

[0088] For example, in the LTM process, the network device can receive the L1 measurement report sent by the terminal, and based on the received L1 measurement result, the network device can send a cell switch command (Cell Switch Command) signaling to the terminal through the MAC CE to realize the process of changing the serving cell of the terminal.

[0089] Figure 1B is a schematic diagram of an LTM process according to an embodiment of the present disclosure.

[0090] As shown in Figure 1B , the network device can previously send multiple LTM candidate configurations to the terminal through radio resource control (RRC) signaling, and when triggering the LTM, send a Cell Switch Command (for example, carried in a MAC CE) indicating the LTM candidate configuration corresponding to the cell that the terminal needs to access. The terminal can apply the corresponding LTM candidate configuration to access the cell indicated by the network device, thereby completing the change of the serving cell.

[0091] In this process, the network device sends the MAC CE based on the L1 measurement result to trigger the cell switch (Cell Switch), which is beneficial to respond to rapid channel changes and timely trigger the switch.

[0092] As shown in Figure 1B , in the LTM process, early uplink synchronization (Early UL synchronization) and early downlink synchronization (Early DL synchronization) for candidate cells are supported. Wherein, "early" means performing before the switching process.

[0093] Based on the early synchronization, RACH-less (Random Access Channel-less) LTM Cell Switch can be supported in the LTM procedure. For example, the TA (Timing Advance) value of the LTM candidate cell can be acquired in advance by early TA acquisition, terminal-based TA measurement, which are used to support RACH-less LTM Cell Switch, for example, for early synchronization. In this way, early uplink synchronization and early downlink synchronization are performed on the candidate cell, and RACH-less LTM Cell Switch can effectively reduce data interruption during the switching process.

[0094] For example, LTM can support Subsequent (subsequent) LTM, which can be implemented when the terminal does not release the LTM candidate configuration after each LTM Cell Switch is completed. In this way, the terminal can continue to perform subsequent Cell Switch without RRC reconfiguration or reset after mobility is performed. Supporting Subsequent LTM can effectively reduce signaling overhead.

[0095] In some embodiments, the network device and the terminal can communicate based on a split architecture, in which the network device (for example, an access network device) can include a CU (Centralized Unit) and a DU (Distributed Unit). In the LTM scenario, intra-CU inter-DU LTM can be implemented, intra-DU LTM can also be implemented, and further, inter-CU LTM, conditional LTM, and event-triggered L1 measurement reporting can also be implemented.

[0096] In some embodiments, regarding the conditional trigger-based mobility procedure, the terminal can be based on the network preconfigured condition and the preconfigured cell (or cell group) corresponding to the condition. For example, when the terminal meets the preconfigured condition (for example, a specific measurement event), the terminal changes the serving cell (or cell group) to the preconfigured cell (or cell group).

[0097] In this way, the conditional trigger-based mobility procedure includes at least one of the following:

[0098] CHO (Conditional Handover, conditional handover);

[0099] CPA (Conditional PSCell Addition, conditional primary secondary cell (or cell group) addition);

[0100] CPC (Conditional PSCell Change, conditional primary secondary cell (or cell group) change).

[0101] For example, the terminal can also change the configuration of a specific cell (or cell group) after meeting the pre-configured conditions according to the network indication, for example, change the configuration of the PCell of the terminal from candidate cell (or cell group) configuration-1 to candidate cell (or cell group) configuration-2.

[0102] It should be noted that the mobility procedure triggered based on conditions is not limited to the above several, but can also include other cases, for example, it can also include: Conditional LTM (conditional LTM, for example, can be marked as C-LTM).

[0103] For example, the LTM triggered based on conditions can be used for MCG (Master Cell group, master cell group) change and / or SCG (Secondary Cell group, secondary cell group) change or addition.

[0104] For example, the LTM triggered based on conditions can be used for PCell change and / or PSCell change or addition.

[0105] For example, the LTM triggered based on conditions can be used for any one or more of the addition, modification and / or deletion of SCell.

[0106] The acquisition of TA (for example, early TA acquisition) in the mobility procedure is exemplarily illustrated by several embodiments as follows.

[0107] In some embodiments, when configured by the network, the UL TA acquisition (for example, referred to as early TA) procedure of one or more cells different from the current serving cell can be started. If the cell has the same NTA as the current serving cell or NTA=0, the early TA acquisition procedure is not required. The network can request the UE to perform early TA acquisition of the candidate cell before cell switching.

[0108] For example, the early TA acquisition procedure is triggered by a PDCCH (Physical Downlink Control Channel) order or by a UE-based TA measurement configured by RRC. In the former case, the gNB to which the candidate cell belongs calculates the TA value and sends it to the gNB to which the serving cell belongs. When the LTM cell handover is triggered, the serving cell sends the TA value in the LTM cell exchange order MAC CE. In the latter case, the terminal performs TA measurement on the candidate cell after RRC configuration, but the exact time when the terminal performs the TA measurement depends on the implementation of the terminal. The terminal applies the TA value of its own measurement and performs LTM without random access when receiving the cell handover order. The network can also send the TA value in the LTM cell handover order MAC CE without the need for early TA acquisition.

[0109] In some embodiments, the network device can acquire TA based on a random access procedure. For example, for the random access procedure of the LTM candidate cell for early UL TA acquisition, CFRA (Contention Free Random Access) triggered by a PDCCH order can be used. The terminal sends MSG1 (message in the random access procedure) to the cell without monitoring the response to MSG1, wherein in order to support UE power ramping, the terminal can also perform MSG1 retransmission indicated by the network.

[0110] Figure 1C is a schematic diagram of a network device acquiring TA according to an embodiment of the present disclosure.

[0111] As shown in Figure 1C , the network device of the serving cell can allocate a preamble to the terminal, and the terminal can send the preamble to the network device of the candidate cell in the case of needing to access the candidate cell, and the candidate cell can determine the TA with the terminal by receiving the preamble.

[0112] In some embodiments, the terminal can calculate TA based on measurement.

[0113] Figure 1D is a schematic diagram of a terminal calculating TA according to an embodiment of the present disclosure.

[0114] As shown in Figure 1D , the network device of cell #1 and the network device of cell #2 send signals to the terminal at the same time, and the terminal can determine the uplink TA in cell #1, for example, called TA_Cell_1, according to the time of receiving the signal sent by the network device of cell #1.

[0115] The terminal can also determine a deviation of the network device transmission signal reception time instant for cell #1 and for cell #2, for example, called reception timing deviation Rx_Diff.

[0116] The terminal can calculate the uplink TA in cell #1, for example, called TA_Cell_2, according to TA_Cell_1 and Rx_Diff, where (TA_Cell_2) / 2 = (TA_Cell_1) / 2 + Rx_Diff.

[0117] Figure 1E Another diagram of terminal calculating TA according to an embodiment of the disclosure is shown.

[0118] As shown in FIG. 2, the terminal can calculate the uplink TA in cell #1, for example, called TA_Cell_2, according to TA_Cell_1 and Rx_Diff, where (TA_Cell_2) / 2 = (TA_Cell_1) / 2 + Rx_Diff. Figure 1E

[0119] In some embodiments, the terminal can maintain a TA value, for example, the terminal can start a time alignment timer (TAT) after obtaining the TA value indicated by the network. During the running of the timer, the terminal considers the TA value valid and uses the TA value for synchronization, communication, etc.

[0120] In some embodiments, the TA can correspond to a single cell, for example, one TA is maintained for one cell and communication is based on the maintained TA in the cell; or the TA can correspond to a single beam, for example, one TA is maintained for one beam and communication is based on the maintained TA in the beam; or the TA can correspond to multiple beams, for example, one TA is maintained for multiple beams and communication is based on the maintained TA in the multiple beams; or the TA can correspond to multiple cells, for example, one TA is maintained for multiple cells and communication is based on the maintained TA in the multiple cells, for example, the multiple cells can include traditional cells (for example, cells not belonging to candidate cells in the LTM switching process) and can also include candidate cells, for example, the multiple cells can constitute a cell group, for example, the cell group can be called a TAG (time advance group), for example, one TAG can correspond to one TAT, and the TA corresponding to the TAG can be maintained through the TAT corresponding thereto.

[0121] ​In a non-dual connectivity (DC) scenario, the terminal can support 4 service TAGs simultaneously, different cells can belong to different TAGs or the same TAG, and the disclosure does not limit this. The number of TAs supported by the terminal is 4.

[0122] For C-LTM, 8 candidate cells can be configured simultaneously, different candidate cells can belong to different TAGs, and there can be at most 8 TAGs. In the case where each TAG corresponds to a TA, the terminal supports 8 TAGs in the C-LTM scenario, and needs to maintain 8 TAs corresponding to the 8 TAGs, plus the maintenance of the 4 TAs corresponding to the original 4 service TAGs, a total of 12 TAs need to be maintained, which greatly increases the terminal's overhead, and is not conducive to ensuring the terminal's performance and endurance.

[0123] Figure 2 is a schematic diagram of an information processing method according to an embodiment of the disclosure.

[0124] In some embodiments, the information processing method can be performed by a terminal.

[0125] In step S201, the network device sends indication information to the terminal.

[0126] In some embodiments, the indication information can indicate a first condition.

[0127] In some embodiments, the terminal can determine the first condition according to a predefined rule. In this case, step S201 can be omitted.

[0128] In step S202, the terminal can determine a TA (which can be one or more TAs) that needs to be maintained in at least one TA according to the first condition, which can be referred to as a first TA.

[0129] In some embodiments, the terminal can maintain the first TA after determining the first TA.

[0130] For example, the terminal maintaining the first TA includes at least one of the following: storing the first TA; starting the TAT corresponding to the first TA; keeping the TAT corresponding to the first TA running.

[0131] In some embodiments, the terminal can not maintain (or stop maintaining) the TA other than the first TA in the at least one TA.

[0132] For example, the TA that the terminal does not maintain can be referred to as a fourth TA, and the terminal stopping maintaining the fourth TA can include at least one of the following: deleting the fourth TA, stopping the TAT of the fourth TA, and deleting the TAT corresponding to the fourth TA.

[0133] For example, for the terminal determining the TA not to be maintained, the terminal can perform at least one of the following: deleting (or called clearing) the TA, stopping the TAT corresponding to the TA.

[0134] For example, the first TA can be a TA satisfying the first condition in the at least one TA, and for the at least one TA, the terminal can only maintain the TA (i.e., the first TA) satisfying the first condition, and does not maintain the TA not satisfying the first condition.

[0135] According to the embodiments of the present disclosure, for the at least one TA, the terminal can not necessarily maintain all of them, but can determine the first TA in the at least one TA according to the first condition, and then maintain the first TA. In this way, it is beneficial to avoid the terminal maintaining too many TAs and causing too much overhead, and it is beneficial to ensure the performance and endurance of the terminal.

[0136] In some embodiments, the first TA can be a TA of a candidate cell, for example, the terminal can perform early synchronization in the candidate cell according to the first TA, and then can switch to the candidate cell corresponding to the TA through the LTM.

[0137] For example, the candidate cell can be an LTM candidate cell, or the candidate cell can be a neighbor cell.

[0138] In some embodiments, the first information can indicate a TA of one candidate cell, or can indicate TAs of multiple candidate cells.

[0139] For one candidate cell, the candidate cell can correspond to one TA or correspond to multiple TAs. For example, the TA can correspond to a single cell, in which case one candidate cell can correspond to one TA; for example, the TA can correspond to a beam, and multiple beams can exist in one candidate cell, in which case one candidate cell can correspond to multiple TAs, and specifically, multiple beams in one candidate cell correspond to multiple TAs.

[0140] For example, the candidate cell includes at least one of the following:

[0141] One candidate cell;

[0142] Multiple candidate cells.

[0143] For example, the first information can indicate one candidate cell, and indicate a TA value for the candidate cell, and the terminal can perform early synchronization in the candidate cell according to the TA value.

[0144] For example, the first information can indicate a plurality of candidate cells, and indicate a TA value for the plurality of candidate cells. For example, the plurality of candidate cells can share one TA value, and the terminal can perform early synchronization in any one of the plurality of candidate cells according to the TA value. For example, the indication information can indicate a TA value for each of the plurality of candidate cells respectively, and the terminal can perform early synchronization in any one of the corresponding candidate cells according to the TA value corresponding to the candidate cell.

[0145] For example, the plurality of candidate cells can constitute a candidate cell group, or can constitute a timing advance group (TAG).

[0146] The first information can indicate a TA value for the candidate cell group, and the terminal can perform early synchronization in any one of the candidate cell group according to the TA value.

[0147] The first information can indicate a TA value for the TAG, and the terminal can perform early synchronization in any one of the TAG according to the TA value.

[0148] For example, the candidate cell group can be a plurality of candidate cell groups, and the first information can indicate a TA value for the plurality of candidate cell groups. For example, the plurality of candidate cell groups can share one TA value, and the terminal can perform early synchronization in any one of the plurality of candidate cell groups according to the TA value. For example, the indication information can indicate a TA value for each of the plurality of candidate cell groups respectively, and the terminal can perform early synchronization in any one of the corresponding candidate cell groups according to the TA value corresponding to the candidate cell group.

[0149] For example, the candidate cell group can be a plurality of TAGs, and the first information can indicate a TA value for the plurality of TAGs. For example, the plurality of TAGs can share one TA value, and the terminal can perform early synchronization in any one of the plurality of TAGs according to the TA value. For example, the indication information can indicate a TA value for each of the plurality of TAGs respectively, and the terminal can perform early synchronization in any one of the corresponding TAGs according to the TA value corresponding to the TAG.

[0150] In some embodiments, the plurality of candidate cells are at least one of:

[0151] a candidate cell group, the candidate cell group containing at least one candidate cell;

[0152] a timing advance group (TAG), the timing advance group being associated with at least one candidate cell.

[0153] For example, the TAG associates at least one candidate cell can mean that the TAG directly associates at least one candidate cell, or can mean that the TAG indirectly associates at least one candidate cell, for example, the TAG directly associates at least one beam, and the at least one beam is at least one candidate cell beam.

[0154] For example, the cells in the TAG can all be candidate cells (in this case, the TAG can also be referred to as a candidate TAG, for example, can be denoted as CTAG), or the cells in the TAG can be partially candidate cells and the other cells are legacy cells (cells other than candidate cells), or the cells in the TAG can be partially candidate cells and the other cells are serving cells, for example, at least one of PCell, PSCell, and SCell.

[0155] In some embodiments, the terminal can determine the number of maintained second TAs.

[0156] For example, the maintained TA means that the network device configures the terminal with a TAT corresponding to the TA, and the terminal can maintain the TA based on the TAT, for example, can include the TA that the terminal is maintaining (for example, the TA corresponding to the TAT is running) and the TA that the terminal will maintain (the terminal will start the TA corresponding to the TAT). The terminal maintains the TA based on the TAT, for example, can include that the terminal performs timing based on the TAT, before the TAT expires, the terminal can determine that the TA is valid, for example, if the TAT is running, the terminal can determine that the TA is valid, for example, after the TAT expires, the terminal can determine that the TA is invalid (or called invalid). For example, in the case that the TA is valid, the terminal can perform early synchronization based on the TA, and in the case that the terminal determines that the TA is invalid, the terminal cannot perform early synchronization based on the TA.

[0157] In some embodiments, the network device can indicate the number threshold to the terminal, or the terminal can determine the number threshold according to a predefined rule, or the terminal can autonomously determine the number threshold.

[0158] For example, the predefined rule can be a protocol agreement.

[0159] For example, the number threshold can be the number threshold of TAs or TAGs that the terminal supports maintaining.

[0160] In some embodiments, the number threshold of TAs or TAGs that the terminal supports maintaining is a terminal capability.

[0161] For example: the terminal capability is the number of TAs or TAGs that the terminal supports maintaining;

[0162] For example: the terminal capability is the number of candidate cells or candidate configurations that the terminal supports maintaining TAs;

[0163] For example, the terminal capability is the number of all TAGs maintained by the terminal.

[0164] For example, the terminal capability is the number of Candidate TAGs (C-TAG or CTAG) of the candidate cells maintained by the terminal.

[0165] For example, the number threshold is equal to the number of TAGs supported by the terminal, for example, the number of TAGs supported by the terminal is n, and in the case that each TAG corresponds to one TA, the number threshold is also equal to n.

[0166] For example, the number of TAGs supported by the terminal can be indicated by the network device. For example, the terminal can indicate the number of TAGs supported by the terminal to the network device through carrier aggregation parameters NR (CA-ParametersNR), for example, the CA-ParametersNR corresponds to an information element (Information Element, IE) which can be as follows:

[0167]

[0168]

[0169] The supportedNumberTAG in the above IE is used to indicate the number of TAGs supported by the terminal.

[0170] In some embodiments, the at least one TA is one of the following:

[0171] The second TA;

[0172] The second TA and the third TA;

[0173] Wherein, the second TA is a TA maintained by the terminal, and the third TA is a TA indicated by the network device in the case that the number of the second TA is equal to a threshold.

[0174] For example, in the case that the number of the second TA is equal to the number threshold, the terminal can determine that the number of the maintained TA has reached the upper limit. In this case, if a third TA needs to be maintained, for example, the network device indicates to the terminal through a MAC CE that other candidate cells or other TAGs (i.e. the third TA) need to be maintained, it will exceed the upper limit of the number of TAs maintained by the terminal, so the terminal needs to screen the TA according to the first condition, discard a part of the TA and maintain only the general TA, so as to avoid the number of maintained TAs exceeding the number threshold of TAs supported by the terminal.

[0175] Wherein, the other candidate cell can be a candidate cell other than the candidate cell corresponding to the second TA, and the other TAG can be a TAG other than the TAG corresponding to the second TA.

[0176] In some embodiments, in a case that the at least one TA is the second TA, the method further comprises: maintaining the third TA; wherein a sum of a quantity of the third TA and a quantity of the first TA is less than or equal to the quantity threshold.

[0177] For example, the terminal determining the first TA in the at least one TA according to the first condition can be that the terminal determines the first TA in the second TA according to the first condition. In this case, the terminal can give up maintaining the TA in the second TA that does not satisfy the first condition, thereby maintaining the first TA and the third TA.

[0178] In this case, since the third TA is indicated by the network device, the terminal can default the third TA as needing to be maintained, and thus does not need to determine whether to need to be maintained based on the first condition.

[0179] It should be noted that in this case, the sum of the quantity of the third TA and the quantity of the first TA is less than or equal to the quantity threshold, thereby ensuring that the sum of the quantity of the third TA maintained by the terminal and the quantity of the first TA maintained by the terminal still does not exceed the quantity threshold supported by the terminal, and ensuring that the terminal can maintain the third TA and the first TA.

[0180] In some embodiments, the at least one TA can include the second TA and the third TA. In this case, the terminal can determine the first TA in the second TA and the third TA according to the first condition, that is, the terminal does not default the third TA as needing to be maintained, and thus can determine whether to need to be maintained based on the first condition for the second TA and the third TA.

[0181] In some embodiments, the first condition comprises at least one of the following:

[0182] a TA corresponding to a first cell in which a measurement result satisfies a first measurement requirement in the at least one TA corresponding to the cell;

[0183] a TA corresponding to a first beam in which a measurement result satisfies a second measurement requirement in the at least one TA corresponding to the beam;

[0184] a TA corresponding to an activated TCI (Transmission Configuration Indication) state in the at least one TA corresponding to the TCI state;

[0185] a TA obtained through an indication of the network device in the at least one TA;

[0186] a TA corresponding to a cell satisfying a first condition in the at least one TA corresponding cell, wherein the first condition is a first condition corresponding to a condition-based mobility;

[0187] a TA corresponding to a serving cell (or a cell group (e.g., a TAG));

[0188] a TA corresponding to a first remaining maintenance duration satisfying a duration requirement in the at least one TA corresponding remaining maintenance duration.

[0189] It should be noted that the cell involved in the first condition can only include candidate cells, or only include legacy cells (e.g., cells other than candidate cells), or can include both candidate cells and legacy cells, and the present disclosure does not limit this.

[0190] In some embodiments, the first condition can be related to a measurement result.

[0191] In some embodiments, the measurement result can be characterized by at least one of: RSRP (Reference Signal Receiving Power), RSRQ (Reference Signal Receiving Quality), and SINR (Signal to Interference plus Noise Ratio).

[0192] For example, the first condition can be that, in the at least one TA corresponding cell, a TA corresponding to a first cell satisfying a first measurement requirement of the measurement result.

[0193] The network device can configure the TA for the cell, or a predefined rule can specify the TA associated with the cell. The terminal can perform measurement on the at least one TA corresponding cell, determine a first cell whose measurement result satisfies a first measurement requirement, for example, the first measurement requirement is that the measurement result is greater than a first threshold, and then the terminal can determine that the TA corresponding to the first cell is the first TA.

[0194] That is, the terminal only maintains the TA corresponding to the cell whose measurement result satisfies the first requirement based on the first condition, and does not maintain the TA corresponding to the cell whose measurement result does not satisfy the first requirement.

[0195] For example, the measurement result satisfying the first measurement requirement includes satisfying any one or more of the following conditions:

[0196] Event A3: Neighbour / Candidate becomes amount of offset better than PCell / PSCell (offset of the neighbour / candidate cell is better than the primary cell / primary secondary cell);

[0197] Event A4: Neighbour / Candidate becomes better than absolute threshold (the neighbour / candidate cell becomes better than the absolute threshold);

[0198] Event A5: PCell / PSCell becomes worse than absolute threshold1 AND Neighbour / / Candidate becomes better than another absolute threshold2 (the primary cell / primary secondary cell becomes worse than the absolute threshold1 and the neighbour / candidate cell becomes better than the another absolute threshold2);

[0199] Event A6: Neighbour becomes amount of offset better than SCell (offset of the neighbour cell is better than the secondary cell).

[0200] For example, the first condition can be that, in the beam corresponding to the at least one TA, the TA corresponding to the first beam whose measurement result satisfies the second measurement requirement.

[0201] For example, the measurement result satisfying the second measurement requirement includes that the measurement result of the beam satisfies any one or more of the following conditions:

[0202] Event LTM3: Beam of candidate cell becomes amount of offset better than beam of serving cell (offset of the beam of the candidate cell is better than the beam of the serving cell);

[0203] Event LTM4: Beam of candidate cell becomes better than absolute threshold (the candidate cell becomes better than the absolute threshold);

[0204] Event LTM5: Beam of serving cell becomes worse than absolute threshold1 AND Beam of candidate cell becomes better than another absolute threshold2 (serving cell becomes worse than absolute threshold1 and candidate cell becomes better than another absolute threshold2).

[0205] The network device can configure the TA for the beam, or a predefined rule can specify the TA associated with the beam. The terminal can perform measurement on the beam corresponding to the at least one TA, determine a first beam whose measurement result satisfies a first measurement requirement, and determine the TA corresponding to the first beam as the first TA.

[0206] That is, the terminal only maintains the TA corresponding to the beam whose measurement result satisfies the first requirement based on the first condition, and does not maintain the TA corresponding to the beam whose measurement result does not satisfy the first requirement.

[0207] For example, the first condition can be a cell in the candidate cell corresponding to the at least one TA that satisfies the first condition, where the first condition is a first condition corresponding to the condition-based mobility (e.g., C-LTM), and the first condition can be referred to as an entering condition.

[0208] For example, the first condition can include at least one of the following: a single measurement result (e.g., a measurement result for a cell or a measurement result for a beam) satisfies a measurement requirement, or multiple measurement results within a time window all satisfy the measurement requirement, or each measurement result within a time window satisfies the measurement requirement.

[0209] The network device can configure the corresponding first condition for the C-LTM, or a predefined rule can specify the first condition corresponding to the C-LTM. The network device can configure the TA for the candidate cell, or a predefined rule can specify the TA associated with the candidate cell.

[0210] The terminal can perform measurement on the candidate cell corresponding to the at least one TA, determine the cell whose first condition corresponding to the C-LTM is satisfied, and confirm the TA corresponding to the cell whose first condition is satisfied as the first TA.

[0211] That is, the terminal only maintains the TA corresponding to the cell whose measurement result satisfies the first condition based on the first condition, and does not maintain the TA corresponding to the cell whose measurement result does not satisfy the first condition.

[0212] In some embodiments, the first condition can be related to the advance synchronization of the terminal.

[0213] For example, the first condition can be that the TA is indicated by the network device.

[0214] For example, the first condition can be that the TA is indicated by the network device.

[0215] For example, the network device can configure (e.g., through RRC signaling) multiple TCI states for the terminal, and can configure a corresponding TA for each TCI state, and subsequently the network device can activate (e.g., through MAC CE) at least one TCI state from the configured multiple TCI states. The terminal can determine the TA corresponding to the activated TCI state as the first TA.

[0216] It should be noted that the network device can also deactivate the activated TCI state, for example, through MAC CE.

[0217] For example, the first condition can be that the TA is indicated by the network device.

[0218] The terminal can obtain the TA in various ways, for example, it can be calculated by the terminal (may be called UE based TA measurement) as shown in Figure 1D or as shown in Figure 1C in the early random access process, the network device determines the TA by receiving the preamble sent by the terminal, and then sends the TA to the terminal.

[0219] Since the TA obtained based on the early random access is the TA determined and indicated by the network device to the terminal, it can be more accurate and more important than the TA calculated by the terminal itself, therefore the terminal can take the TA obtained through the early random access as the first TA, and for the TA not obtained based on the early random access, for example, the TA calculated by the terminal, the terminal can not maintain it. For example, it can also be described as the terminal only maintains the TA indicated by the network device (i.e., only takes the TA indicated by the network device as the first TA).

[0220] It should be noted that the terminal does not need to indicate the acquired TA through the network, and is not limited to the manner described in the above embodiments, and other manners can also exist, and the present disclosure does not limit this. For example, the terminal measurement TA identifier (UE measure TAID) can correspond to multiple cells, and in a case where the UE measure TAID corresponding to a candidate cell is the same as the UE measure TAID corresponding to the serving cell, the terminal can measure the candidate cell, thereby acquiring the TA corresponding to the candidate cell.

[0221] For example, for part of the candidate cells, the terminal can acquire the TA value of part of the first candidate cells through terminal-based TA measurement or other terminal-side methods, and for these part of the cells, the terminal can not need to maintain the TA thereof, because it can acquire the TA in time through terminal-based TA measurement or other terminal-side methods; however, for another part of the candidate cells, that is, the second candidate cells, the terminal cannot acquire the TA in time through terminal-based TA measurement or other terminal-side methods, that is, it can only acquire the TA through network device indication, and the terminal only maintains the TA of the second candidate cells (that is, only the TA indicated by the network device is taken as the first TA).

[0222] It should be noted that the first condition is not limited to the above several embodiments described in relation to the measurement result, in relation to the advance synchronization condition of the terminal, and the first condition can also include other forms of conditions.

[0223] For example, the first condition can also include: the TA corresponding to the serving cell, and the terminal can only select the TA of the serving cell as the first TA to maintain among the multiple TAs; and the TA corresponding to the first remaining maintenance time length that meets the time length requirement (for example, the remaining maintenance time length is greater than the time length threshold) among the remaining maintenance time lengths of the at least one TA.

[0224] For example, the TA remaining maintenance time length can be equal to the total maintenance time length (for example, also referred to as the timeout time length) of the TA corresponding timer minus the already maintained time length (for example, the running time length of the TA corresponding timer).

[0225] In some embodiments, the above several first conditions can be combined and applied, for example, the first condition can include the TA acquired through network device indication among the at least one TA, and the TA corresponding to the activated TCI state among the TCI states corresponding to the at least one TA.

[0226] In some embodiments, the above several first conditions can be combined through an "and" or "or" relationship; the following will be exemplarily described through several embodiments.

[0227] In some embodiments, the above several first conditions can have priorities, for example, in the case of the combination of multiple first conditions, the first condition with a relatively higher priority can be considered first. For example, the first condition includes the TA corresponding to the serving cell, the TA corresponding to the first cell whose measurement result in the at least one TA corresponding cell meets the first measurement requirement, wherein the TA corresponding to the serving cell has a higher priority. For example, the number of TAs supported by the terminal for maintenance is M (for example, the number threshold = M), and the TA corresponding to the first cell whose measurement result in the at least one TA corresponding cell meets the first measurement requirement is more than M, then the TA corresponding to the serving cell (for example, corresponding to 1 TA) can be maintained preferentially, and the first cell whose measurement result in the at least one TA corresponding cell meets the first measurement requirement is determined, and then M-1 TAs corresponding to the first cell are determined for maintenance, so as to ensure that the total number of TAs maintained by the terminal does not exceed M.

[0228] The following is illustrated by several embodiments, and the number of TAs maintained by the terminal is equal to M (for example, the number threshold = M), and the way of determining the first TA required to be maintained by the terminal is exemplarily illustrated.

[0229] For example, the number of second TAs maintained by the terminal is equal to M, that is, the number of TAs maintained by the terminal has reached the upper limit of the terminal capability. In this case, if the network device indicates (for example, indicates by MAC CE) the TA to be maintained to the terminal, the terminal can determine whether the TA indicated by the network device belongs to the second TA. Wherein, the TA belongs to the second TA, for example, the related information of the TA is the same as the related information of the second TA, for example, the related information can include at least one of the following: cell, beam, identifier.

[0230] If the TA indicated by the network device belongs to the second TA, the terminal can update the corresponding TA in the second TA according to the TA indicated by the network device. For example, TA#1 indicated by the network device is the TA of candidate cell#1, and the terminal can update TA#0 corresponding to the candidate cell#1 in the second TA to TA#1.

[0231] If the TA indicated by the network device does not belong to the second TA, the terminal can determine the first TA in the second TA (in this case, the TA indicated by the network device is maintained by default), or the terminal can determine the first TA in the second TA and the TA indicated by the network device (in this case, the TA indicated by the network device is not maintained by default).

[0232] For example, the terminal can determine the first TA from the second TA and the TA indicated by the network device, and the first condition includes that the TA corresponding to the first cell in which the measurement result meets the first measurement requirement. For example, the number of TA indicated by the network device is N, the network device can perform measurement on the cells corresponding to the M TA maintained by the network device and the N TA indicated by the network device, obtain M+N measurement results, and then sort the M+N measurement results, select the cells corresponding to the M measurement results with the highest ranking as the first cells, and take the TA corresponding to the first cell as the first TA.

[0233] For example, in the case of combination of multiple first conditions, the first condition with relatively high priority is given priority. For example, the first condition includes the TA corresponding to the TAG of the serving cell, and the TA corresponding to the first cell in which the measurement result meets the first measurement requirement. The TA corresponding to the TAG of the serving cell has higher priority.

[0234] For example, the network device indicates to the terminal to maintain the TA, the TA indicated by the network device does not belong to the second TA, and the terminal determines the first TA from the second TA and the TA indicated by the network device. The terminal supports M TA (for example, the number threshold is M), and the TA corresponding to the first cell in which the measurement result meets the first measurement requirement is more than M. Then, the TA corresponding to the TAG of the serving cell (for example, corresponding to m TA) can be given priority to maintain. Then, the terminal can measure the first cell in which the measurement result meets the first measurement requirement in the second TA and the TA corresponding to the cell indicated by the network device, and then determine M-m TA in the TA corresponding to the first cell to maintain. Thus, on the basis of ensuring the maintenance of the TA corresponding to the TAG of the serving cell, the total amount of TA maintained by the terminal will not be more than M.

[0235] In some embodiments, the terminal can autonomously determine the first TA (for example, the first condition is determined by the terminal based on implementation), or can determine the first TA according to the indication of the network device (for example, the first condition is indicated by the network device).

[0236] In some embodiments, the terminal can send the first information to the network device. The first information can be the capability information of the terminal, for example, the first information is used to indicate that the terminal supports the number of maintained TA.

[0237] For example, the TA is associated with the TAG, and then the first information can indirectly indicate the number of TA maintained by the terminal by indicating the number of TAG maintained.

[0238] For example, the TAG can include only candidate cells, or the TAG can include only legacy cells, or the TAG can include both candidate cells and legacy cells. For example, in the case that the TAG includes both candidate cells and legacy cells, the TA corresponding to the candidate cells in the TAG and the TA corresponding to the legacy cells in the TAG can be the same, or the TA corresponding to the candidate cells in the TAG and the TA corresponding to the legacy cells in the TAG can be different.

[0239] The terminal indicates to the network device through the first information that the terminal supports the number of maintained TAs, which can assist the network device in indicating the TA to the terminal. For example, the network device can determine the number of second TAs maintained by the terminal, and when the number of second TAs is equal to the number of TAs supported by the terminal to be maintained, the network device can no longer indicate to the terminal a TA that does not belong to the second TA, so as to avoid the number of TAs maintained by the terminal exceeding the capability of the terminal. Wherein, the TA belongs to the second TA, for example, the related information of the TA and the related information of the second TA are the same, for example, the related information can include at least one of the following: cell, beam, identifier.

[0240] In some embodiments, the terminal can send second information to the network device, wherein the second information is used to indicate at least one of the following:

[0241] The number of TAs maintained by the terminal;

[0242] The identifier corresponding to the TA maintained by the terminal;

[0243] The identifier corresponding to the fourth TA stopped by the terminal from maintaining;

[0244] The reason why the terminal stops maintaining the fourth TA.

[0245] In some embodiments, the terminal can send second information to the network device, and the second information can include the related information of the TA maintained by the terminal, the related information of the TA stopped from being maintained, etc.

[0246] For example, the related information of the TA can include the number of TAs, the identifier corresponding to the TA. For example, the identifier corresponding to the TA can include the identifier of the cell (for example, candidate cell) corresponding to the TA, the identifier of the TAG corresponding to the TA, the identifier of the candidate configuration corresponding to the TA.

[0247] The terminal sends the second information to the network device, which can assist the network device in performing TA-related operations.

[0248] For example, the second indication information can indicate a number of the second TA maintained by the terminal, according to which the network device can determine the number of the second TA maintained by the terminal, and when the number of the second TA is equal to the number of the TA supported by the terminal to maintain, the network device can no longer indicate to the terminal a TA that does not belong to the second TA, so as to avoid the number of the TA maintained by the terminal exceeding the capability of the terminal. Wherein, the TA belongs to the second TA, for example, the relevant information of the TA can be the same, for example, the relevant information can include at least one of the following: cell, beam, and identifier.

[0249] For example, the second indication information can indicate an identifier corresponding to the TA maintained by the terminal, according to which the network device can determine the TA maintained by the terminal, and then the network device can update the TA maintained by the terminal, for example, instruct the terminal to delete one or more maintained TAs, for example, instruct the terminal to adjust the value of at least one maintained TA, or for example, instruct the terminal to add a maintained TA.

[0250] For example, the second indication information can indicate an identifier corresponding to the fourth TA stopped by the terminal. The terminal can determine a first TA that needs to be maintained in at least one TA, and then stop maintaining the TA other than the first TA in the at least one TA, which can be referred to as the fourth TA. According to this, the network device can determine the TA stopped by the terminal.

[0251] For example, the second indication information can also indicate a reason for the terminal to stop maintaining the fourth TA, for example, the reason can include at least one of the following: the TCI state corresponding to the fourth TA is not activated, the number of the maintained TA is greater than a threshold value, the measurement result of the cell corresponding to the fourth TA does not meet the measurement requirement (which can be used to indicate that the cell corresponding to the fourth TA is not the optimal candidate cell), or the measurement result of the beam corresponding to the fourth TA does not meet the measurement requirement (which can be used to indicate that the beam corresponding to the fourth TA is not the optimal beam). According to this, the network device can determine the reason for the terminal to stop maintaining the fourth TA.

[0252] In some embodiments, the network device receiving the second indication information can be a network device of a serving cell, which can send indication information to a network device of a candidate cell corresponding to the fourth TA, indicating that the fourth TA corresponding to the candidate cell has been invalidated (or deleted), and further indicating the reason for the invalidation of the fourth TA.

[0253] For example, under a split architecture, the network device of the serving cell and the network device of the candidate cell can interact, which can be completed by a central unit (CU) and / or a distributed unit (DU) corresponding to the network device of the serving cell, and can be directly or indirectly realized by directly or indirectly interacting with the CU and / or the DU corresponding to the network device of the candidate cell.

[0254] In some embodiments, the operation of the terminal determining to maintain the TA, the operation of the terminal deleting the TA, can be decided by the network device, the terminal can send third information to the network device to request the network device to determine the TA that the terminal needs to delete and / or the TA that the terminal needs to maintain, and then the network device can instruct the terminal to delete the TA and / or the TA that the terminal needs to maintain.

[0255] For example, the third information is used to indicate at least one of the following:

[0256] An identifier corresponding to the TA that the network device is requested to maintain;

[0257] An identifier corresponding to the TA that the network device is requested to delete;

[0258] A reason for requesting the network device to delete the TA.

[0259] It should be noted that the identifier corresponding to the TA may, for example, include an identifier of a cell (for example, a candidate cell) corresponding to the TA, an identifier of a TAG corresponding to the TA, and an identifier of a candidate configuration corresponding to the TA.

[0260] In some embodiments, the terminal can send the third information to the network device only when the number of maintained TAs is equal to the number threshold.

[0261] In some embodiments, the third information can be used to assist the network device to perform the TA-related operation.

[0262] For example, the network device can determine the identifier corresponding to the TA that the network device is requested to maintain according to the third information, and then can instruct the terminal to maintain the corresponding TA. For example, the terminal can determine the TA that needs to be maintained according to the instruction of the network device, and maintain the TA instructed by the network device.

[0263] For example, the network device can determine the identifier corresponding to the TA that the network device is requested to delete according to the third information, and then can instruct the terminal to delete the corresponding TA. For example, the network device can instruct the terminal to delete the TA corresponding to the identifier, the terminal can determine the TA that needs to be deleted according to the instruction of the network device, and then can delete the corresponding TA (for example, stop maintaining the TA, stop the TAT corresponding to the TA, delete the TAT corresponding to the TA).

[0264] It should be noted that in addition to the first information, the second information, the third information and the like recorded in the foregoing embodiments, the terminal can also send other information to the network device, and the present disclosure does not limit this. For example, the terminal can send the measurement result of the candidate cell and the measurement result of the beam in the candidate cell to the network device, so as to assist the network device to perform subsequent operations, for example, to assist the network device to instruct the terminal to perform LTM.

[0265] The communication method related to the embodiments of the present disclosure can include at least one of steps S201-S202. For example, step S201 can be implemented as an independent embodiment, step S202 can be implemented as an independent embodiment, steps S201+S202 can be implemented as an independent embodiment, but are not limited thereto.

[0266] In some embodiments, steps S201 and S202 can be exchanged in order or performed simultaneously.

[0267] In some embodiments, step S201 is optional, and one or more of the steps can be omitted or replaced in different embodiments.

[0268] In some embodiments, step S202 is optional, and one or more of the steps can be omitted or replaced in different embodiments.

[0269] In some embodiments, other optional implementations described before or after the corresponding description can be referred to. Figure 2

[0270] The technical solutions of the present disclosure are exemplarily described below through several embodiments.

[0271] In some embodiments, the network device sends the TA value of the candidate cell and / or the candidate TAG to the terminal through the MAC CE message, and the terminal maintains the TA value based on the TAT configured by the network device.

[0272] Wherein, the TA and TAT can be for one candidate cell, or correspond to one candidate TAG, wherein one candidate TAG corresponds to one or more candidate cells, and the candidate TAG can be a service TAG or not.

[0273] The terminal receives the C-LTM configuration information sent by the network device, which can include any one or more of candidate cell configuration, candidate TAG configuration, and TAT configuration.

[0274] The terminal receives the TA of one or more candidate TAGs and / or candidate cells sent by the network device. The terminal maintains these TAs and starts the corresponding TAT (also referred to as maintaining these candidate TAGs, maintaining the TAs of these candidate cells, etc.).

[0275] Wherein, the TA of the candidate cell and / or the beam of the candidate cell corresponds to the TA of the corresponding TAG.

[0276] Embodiment 1: The terminal screens the maintained TA, controls the number of TAs maintained by the terminal, and thereby avoids maintaining too many TAs of candidate cells. ​

[0277] For example, the terminal updates the maintained TA based on the measurement result.

[0278] For example, the terminal maintains the TA corresponding to the candidate cell and / or the beam of the candidate cell with the best cell-level measurement result and / or beam-level measurement result.

[0279] When the measurement result of the candidate cell (or the beam of the candidate cell) corresponding to the TA maintained (to be maintained) by the terminal is less than and / or less than or equal to a threshold value (does not satisfy the first event), the terminal does not maintain (or is called to delete and / or clear) the TA and stops the corresponding TAT; or in other words, the terminal maintains the TA corresponding to the cell and / or the beam whose cell-level measurement result and / or beam-level measurement result is greater than the threshold value (satisfies the first event).

[0280] When the measurement result of the candidate cell (or the beam of the candidate cell) corresponding to the TA maintained (to be maintained) by the terminal does not satisfy at least one second event associated with the CLTM execution condition and / or or does not satisfy the first condition of the CLTM execution condition, the terminal does not maintain (or is called to delete and / or clear) the TA and stops the corresponding TAT; or in other words, the terminal maintains the TA corresponding to the cell and / or the beam whose measurement result of the candidate cell (or the beam of the candidate cell) satisfies at least one second event associated with the CLTM execution condition and / or or satisfies the first condition of the CLTM execution condition.

[0281] For example, the terminal updates the maintained TA based on the advance synchronization situation.

[0282] When the TCI state corresponding to the candidate cell (or the beam of the candidate cell) corresponding to the TA maintained (to be maintained) by the terminal is not activated, the terminal does not maintain (or is called to delete and / or clear) the TA and stops the corresponding TAT; or in other words, the terminal maintains the TA corresponding to the candidate cell and / or the beam of the candidate cell whose TCI state is activated.

[0283] When the TA corresponding to the candidate cell (or the beam of the candidate cell) maintained (to be maintained) by the terminal can also be obtained by a method other than network indication (for example, obtained by UE based TA measurement, such as the UE measure TA ID of the candidate cell being equal to the UE measure TA ID of the serving cell), the terminal does not maintain (or is called to delete and / or clear) the TA and stops the corresponding TAT; or in other words, the terminal maintains the TA of the candidate cell and / or the beam of the candidate cell whose TA can only be obtained based on network indication (i.e., for example, the UE measure TA ID of the candidate cell is not equal to the UE measure TA ID of the serving cell).

[0284] Embodiment 2: The terminal ranks the maintained TAs, and ensures that the number of TAs maintained by the terminal does not exceed a number threshold (e.g., denoted as a first number, M).

[0285] For example, the terminal has maintained a first number M of TAs, when the terminal receives again a TA value of a candidate cell and / or a candidate TAG sent by the network device through a MAC CE message:

[0286] If the terminal has maintained this TA, the terminal updates the maintained TA and related information based on this MAC CE message;

[0287] If the terminal has not maintained this TA before, and the number of TAs not maintained before is N, the terminal determines the TAs to be maintained based on one or more of the following criteria:

[0288] The terminal preferentially maintains the first number M of TAs corresponding to the cells or beams of the cells with the best measurement results.

[0289] For example, for the M TAs originally maintained and the N TAs newly received, the first M TAs corresponding to the M+N TAs with the best measurement results of the candidate cells or beams of the candidate cells are the TAs to be maintained.

[0290] The terminal preferentially maintains the TAs and / or TAGs of the candidate cells corresponding to the events and / or the corresponding first conditions that meet the C-LTM execution conditions.

[0291] The terminal preferentially maintains the TAs corresponding to the activated TCI states.

[0292] The terminal preferentially maintains the TAs that can only be acquired based on the early RACH; for example, the TAs corresponding to some candidate cells cannot be acquired based on terminal measurement, and the terminal preferentially maintains the TAs corresponding to these cells.

[0293] The terminal preferentially maintains the TAs of the serving cell and / or the serving TAG.

[0294] For example, if there are m TAs corresponding to the TAG of the serving cell in the M+N TAs, the TAs are maintained, and then the remaining M-m TAs can be screened based on other criteria for maintenance.

[0295] The terminal preferentially maintains the TAs with a long TAT remaining time.

[0296] For example, for the M+N TAs, the first M TAs with the longest TAT remaining time are selected for maintenance.

[0297] Embodiment 3: The terminal sends information to the network device, which is used to assist and / or inform and / or request to update the TA maintenance. Based on the schemes described in Embodiments 1 and 2, the terminal is triggered to send information to the network, which is used to assist and / or inform and / or request to update the TA maintenance.

[0298] The terminal sends first information to the network, which is used to assist the network device to manage the TA of the candidate cell maintained by the terminal, wherein the first information can include any one or more of the following information:

[0299] The maximum number of TAs that can be maintained by the terminal;

[0300] For example, the maximum number of candidate TAGs and / or candidate TAs that can be maintained by the terminal;

[0301] For example, the maximum number of TAGs and / or TAs that can be maintained by the terminal (including the total number of TAs of the serving TAG and the candidate TAG, wherein the serving cell and the candidate cell can correspond to the same TAG, the same TA, or different TAGs and TAs);

[0302] The number of TAs currently maintained by the terminal;

[0303] For example, the number of candidate TAGs and / or candidate TAs currently maintained by the terminal;

[0304] For example, the number of TAGs and / or TAs currently maintained by the terminal (including the total number of TAs of the serving TAG and the candidate TAG, wherein the serving cell and the candidate cell can correspond to the same TAG, the same TA, or different TAGs and TAs);

[0305] The measurement result of the candidate cell;

[0306] The measurement result of the beam of the candidate cell.

[0307] Based on the first information, the network device can send TA update information to the terminal to update the TA currently maintained by the terminal, for example, delete the TA X of the TAG X maintained by the terminal, and / or modify the TA Y of the TAG Y maintained by the terminal to TA Y1, and / or add the TA Z of the TAG Z maintained by the terminal.

[0308] The terminal sends second information to the network, which is used to inform the network that the terminal has updated the maintained TA (the terminal updates the maintained TA based on the method in Embodiments 1 and 2), wherein the second information can include any one or more of the following information:

[0309] The TAG and / or the candidate cell identifier or the candidate configuration identifier corresponding to the TA currently maintained by the terminal;

[0310] For example, the candidate TAG and / or the candidate TA currently maintained by the terminal;

[0311] For example, the TAG and / or TA (including the TA of the serving TAG and the candidate TAG, where the serving cell and the candidate cell can correspond to the same TAG, the same TA, or different TAGs and / or TAs) currently maintained by the terminal;

[0312] The TAG and / or candidate cell identifier or candidate configuration identifier corresponding to the TA deleted by the terminal;

[0313] For example, the TAG identifier or candidate cell identifier or candidate configuration identifier corresponding to the TA of the candidate cell deleted by the terminal;

[0314] The deletion reason:

[0315] For example, any one or more of the following: the measurement result does not meet the requirement, the TCI state is not activated, the number of maintained TAs exceeds the threshold value, the TA of a non-optimal candidate cell, the TA of a non-optimal beam, etc.

[0316] When the serving cell receives the second information sent by the terminal, the serving cell needs to notify the candidate cell corresponding to the deleted TA that the corresponding TA has been deleted and / or has been invalidated based on the content of the second information.

[0317] For example, the node and / or DU and / or CU of the serving cell directly or indirectly notifies the node and / or DU and / or CU of the candidate cell.

[0318] The terminal sends third information to the network, where the third information is used to request the network to update the TA maintained by the terminal (the terminal updates the maintained TA based on the method in Embodiment 1 and Embodiment 2), and the third information can include any one or more of the following information:

[0319] For example, when the number of TAs maintained by the terminal reaches or is greater than the maximum value M, the terminal can send the third information to the network.

[0320] For example, the terminal requests to continue to maintain the TAG and / or candidate cell identifier or candidate configuration identifier corresponding to the TA.

[0321] For example, the terminal requests to delete the TAG and / or candidate cell identifier or candidate configuration identifier corresponding to the TA.

[0322] For example, the deletion reason: for example, any one or more of the following: the measurement result does not meet the requirement, the TCI state is not activated, the number of maintained TAs exceeds the threshold value, the TA of a non-optimal candidate cell, the TA of a non-optimal beam, etc.

[0323] When the serving cell receives the third information sent by the terminal, the serving cell needs to update the TA currently maintained by the terminal based on the content of the third information, for example, delete the TA X of the TAG X maintained by the terminal, and notify the candidate cell corresponding to the deleted TA that the TA corresponding to the terminal has been deleted and / or has been invalidated.

[0324] For example, the node and / or DU and / or CU of the serving cell directly or indirectly notifies the node and / or DU and / or CU of the candidate cell.

[0325] In some embodiments, the names of information and the like are not limited to the names described in the embodiments, and the terms of "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codebook", "codeword", "code point", "bit", "data", "program", "chip", and the like can be replaced with each other.

[0326] In some embodiments, the terms of "uplink", "uplink", "physical uplink", and the like can be replaced with each other, the terms of "downlink", "downlink", "physical downlink", and the like can be replaced with each other, and the terms of "side", "sidelink", "sidelink communication", "sidelink communication", "direct connection", "direct connection link", "direct connection", "direct connection link communication", and the like can be replaced with each other.

[0327] In some embodiments, the terms of "downlink control information (DCI)", "downlink (DL) assignment", "DL DCI", "uplink (UL) grant", "UL DCI", and the like can be replaced with each other.

[0328] In some embodiments, the terms of "time", "time point", "time", "time position", and the like can be replaced with each other, and the terms of "time length", "time period", "time window", "window", "time", and the like can be replaced with each other.

[0329] In some embodiments, the terms "component carrier (CC)", "cell", "frequency carrier", "carrier frequency" and the like can be replaced by each other.

[0330] In some embodiments, the terms "acquire", "obtain", "get", "receive", "transmit", "bidirectional transmission", "send and / or receive" can be replaced by each other, which can be interpreted as receiving from other subjects, obtaining from protocols, obtaining from high layers, processing to obtain by itself, implementing autonomously and the like.

[0331] In some embodiments, the terms "send", "transmit", "report", "issue", "transmit", "bidirectional transmission", "send and / or receive" and the like can be replaced by each other.

[0332] In some embodiments, the terms "certain", "preset", "pre-set", "set", "indicated", "certain", "arbitrary", "first" and the like can be replaced by each other, and "certain A", "preset A", "pre-set A", "set A", "indicated A", "certain A", "arbitrary A", "first A" can be interpreted as A specified in advance in protocols and the like, A obtained by setting, configuration, or indication, and the like, A specific, certain, arbitrary, or first A, but not limited thereto.

[0333] Corresponding to the embodiments of the information processing method and the information sending method described above, the disclosure also provides embodiments of an information processing device and an information sending device.

[0334] Figure 3 is a schematic block diagram of an information processing device according to an embodiment of the disclosure. For example, the information processing device can be provided in and / or applied to a terminal. As shown in Figure 3 The information processing device includes a processing module 301, a receiving module 302, and a sending module 303.

[0335] In some embodiments, the processing module is configured to determine a first condition according to a predefined rule, or the receiving module is configured to receive indication information sent by a network device, wherein the indication information is used to indicate the first condition; the processing module is further configured to determine a first TA in at least one timing advance (TA) according to the first condition; and maintain the first TA.

[0336] In some embodiments, the at least one TA is one of: a second TA; the second TA and a third TA; wherein the second TA is a TA maintained by the terminal, and the third TA is a TA indicated by the network device in a case that a quantity of the second TA is equal to a threshold.

[0337] In some embodiments, in a case that the at least one TA is the second TA, the processing module is further configured to maintain the third TA; wherein a quantity of the third TA and a quantity of the first TA are less than or equal to the quantity threshold.

[0338] In some embodiments, the first condition comprises at least one of: a TA corresponding to a first cell in which a measurement result satisfies a first measurement requirement among cells corresponding to the at least one TA; a TA corresponding to a first beam in which a measurement result satisfies a second measurement requirement among beams corresponding to the at least one TA; a TA corresponding to an activated TCI state among TCI states corresponding to the at least one TA; a TA obtained through an indication of the network device among the at least one TA; a TA corresponding to a cell satisfying the first condition among candidate cells corresponding to the at least one TA, wherein the first condition is a first condition corresponding to a condition-based mobility; a TA corresponding to a serving cell; a TA corresponding to a first remaining maintenance duration satisfying a duration requirement among remaining maintenance durations corresponding to the at least one TA.

[0339] In some embodiments, the apparatus further comprises a sending module configured to send first information to the network device, wherein the first information is used to indicate that the terminal supports maintaining a quantity of TAs.

[0340] In some embodiments, the apparatus further comprises a sending module configured to send second information to the network device, wherein the second information is used to indicate at least one of: a quantity of TAs maintained by the terminal; an identifier corresponding to a TA maintained by the terminal; an identifier corresponding to a fourth TA stopped from being maintained by the terminal; a reason for stopping maintaining the fourth TA by the terminal.

[0341] In some embodiments, the apparatus further comprises a sending module configured to send third information to the network device, wherein the third information is used to indicate at least one of: an identifier of a TA requested to be maintained by the network device; an identifier of a TA requested to be deleted by the network device; a reason for deleting a TA by the network device.

[0342] Figure 4 is a schematic block diagram of an information sending apparatus according to an embodiment of the present disclosure. For example, the information sending apparatus can be arranged in and / or applied to a network device. As shown in Figure 4As shown, the information sending apparatus comprises a sending module 401 and a receiving module 402.

[0343] In some embodiments, the sending module is configured to send indication information to the terminal, wherein the indication information is used to indicate a first condition for the terminal to determine that a first TA is needed in at least one timing advance (TA).

[0344] In some embodiments, the at least one TA is one of the following: a second TA maintained by the terminal; the second TA and a third TA; wherein the second TA is a TA maintained by the terminal, and the third TA is a TA indicated by the network device in a case where a quantity of the second TA is equal to a threshold value.

[0345] In some embodiments, the first TA comprises at least one of the following: a TA corresponding to a first cell in which a measurement result of a cell corresponding to the at least one TA satisfies a first measurement requirement; a TA corresponding to a first beam in which a measurement result of a beam corresponding to the at least one TA satisfies a second measurement requirement; a TA corresponding to an activated transmission configuration indication state (TCI state) in a TCI state corresponding to the at least one TA; a TA obtained by indication of the network device in the at least one TA; a TA corresponding to a cell that satisfies a first condition in a candidate cell corresponding to the at least one TA, wherein the first condition is a first condition corresponding to a condition-based mobility; a TA corresponding to a serving cell; or a TA corresponding to a first remaining maintenance duration that satisfies a duration requirement in a remaining maintenance duration corresponding to the at least one TA.

[0346] In some embodiments, the receiving module is configured to receive first information sent by the terminal, wherein the first information is used to indicate a quantity of TAs supported by the terminal to maintain.

[0347] In some embodiments, the receiving module is configured to receive second information sent by the terminal, wherein the second information is used to indicate at least one of the following: a quantity of TAs maintained by the terminal; an identifier corresponding to a TA maintained by the terminal; an identifier corresponding to a fourth TA stopped from being maintained by the terminal; and a reason for the terminal to stop maintaining the fourth TA.

[0348] In some embodiments, the receiving module is configured to receive third information sent by the terminal, wherein the third information is used to indicate at least one of the following: an identifier of a TA requested to be maintained by the network device; an identifier of a TA requested to be deleted by the network device; and a reason for the network device to delete the TA.

[0349] For the apparatus embodiment, since it basically corresponds to the method embodiment, the relevant part can be seen from the part of the method embodiment. The apparatus embodiment described above is only illustrative, wherein the modules described as separate components can or can not be physically separated, and the components displayed as modules can or can not be physical modules, that is, can be located in one place or distributed to multiple network modules. Part or all of the modules can be selected to achieve the purpose of the embodiment according to actual needs. Those skilled in the art can understand and implement without creative labor.

[0350] The embodiments of the present disclosure also propose a device for implementing any of the above methods, for example, a device comprising units or modules for implementing each step performed by the terminal in any of the above methods. For another example, another device is also proposed, comprising units or modules for implementing each step performed by the network equipment (such as access network equipment, core network function node, core network equipment, etc.) in any of the above methods.

[0351] It should be understood that the division of each unit or module in the above apparatus is only a logical function division, and all or part of them can be integrated into a physical entity or physically separated in actual implementation. In addition, the units or modules in the apparatus can be implemented in the form of processor calling software: for example, the apparatus includes a processor connected with a memory, the memory stores instructions, and the processor calls the instructions stored in the memory to implement any of the above methods or realize the functions of each unit or module of the above apparatus, wherein the processor is, for example, a general processor such as a central processing unit (CPU) or a microprocessor, and the memory is a memory in the apparatus or a memory outside the apparatus. Alternatively, the units or modules in the apparatus can be implemented in the form of hardware circuit, and the functions of part or all of the units or modules can be realized by the design of hardware circuit. The above hardware circuit can be understood as one or more processors; for example, in one implementation, the above hardware circuit is an application-specific integrated circuit (ASIC), and the functions of part or all of the above units or modules are realized by the design of the logical relationship of elements in the circuit; for example, in another implementation, the above hardware circuit is a programmable logic device (PLD), and a field programmable gate array (FPGA) is taken as an example, which can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by a configuration file, so as to realize the functions of part or all of the above units or modules. All units or modules of the above apparatus can be implemented in the form of processor calling software, or all units or modules can be implemented in the form of hardware circuit, or part of the units or modules are implemented in the form of processor calling software, and the remaining part is implemented in the form of hardware circuit.

[0352] In the embodiments of the present disclosure, the processor is a circuit with signal processing capability. In one implementation, the processor can be a circuit with instruction reading and running capability, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), a digital signal processor (DSP), and the like. In another implementation, the processor can implement certain functions through a logical relationship of a hardware circuit, and the logical relationship of the hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In the reconfigurable hardware circuit, the processor loads a configuration document to implement the configuration of the hardware circuit. It can be understood that the processor loads instructions to implement the functions of the above part or all units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), and the like.

[0353] Figure 5A FIG. 51 is a structural schematic diagram of a communication device 5100 according to an embodiment of the present disclosure. The communication device 5100 can be a network device (for example, an access network device, a core network device, and the like), can be a terminal (for example, a user equipment, and the like), can be a chip, a chip system, or a processor supporting the network device to implement any of the above methods, and can be a chip, a chip system, or a processor supporting the terminal to implement any of the above methods. The communication device 5100 can be used to implement the methods described in the above method embodiments, and details can be referred to the descriptions in the above method embodiments.

[0354] As shown in FIG. 51, the communication device 5100 can include a processor 5101 and a storage 5102. The processor 5101 can be configured to execute instructions to implement various functions described in the above method embodiments. The storage 5102 can store the instructions and / or various data. The storage 5102 can be a memory (for example, a random access memory, flash memory, or the like) or a storage device (for example, a magnetic disk, an optical disk, or the like). Figure 5AAs shown, the communication device 5100 includes one or more processors 5101. The processor 5101 can be a general purpose processor or a special purpose processor, etc., for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, the central processing unit can be used to control the communication device (e.g., a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process data of the programs. Optionally, the communication device 5100 is configured to perform any of the above methods. Optionally, the one or more processors 5101 are configured to invoke instructions to cause the communication device 5100 to perform any of the above methods.

[0355] In some embodiments, the communication device 5100 further includes one or more transceivers 5102. When the communication device 5100 includes one or more transceivers 5102, the transceiver 5102 performs at least one of the communication steps (e.g., steps S201, S202, but not limited to) in the above methods, and the processor 5101 performs at least one of the other steps (e.g., steps S201, S202, but not limited to). In optional embodiments, the transceiver can include a receiver and / or a transmitter, which can be separate or integrated together. Optionally, the terms transceiver, transceiving unit, transceiver, transceiving circuit, interface circuit, interface, etc. can be replaced by each other, the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc. can be replaced by each other, and the terms receiver, receiving unit, receiver, receiving circuit, etc. can be replaced by each other.

[0356] In some embodiments, the communication device 5100 further includes one or more memories 5103 for storing data. Optionally, all or part of the memory 5103 can also be outside the communication device 5100. In optional embodiments, the communication device 5100 can include one or more interface circuits 5104. Optionally, the interface circuit 5104 is connected to the memory 5103, and the interface circuit 5104 can be used to receive data from the memory 5103 or other devices, and can be used to send data to the memory 5103 or other devices. For example, the interface circuit 5104 can read data stored in the memory 5103 and send the data to the processor 5101.

[0357] The communication device 5100 described in the above embodiments can be a network device or a terminal, but the scope of the communication device 5100 described in the present disclosure is not limited thereto, and the structure of the communication device 5100 can not be limited to Figure 5AThe communication device can be a stand-alone device or can be a part of a larger device. For example, the communication device can be: 1) a stand-alone integrated circuit (IC), or chip, or chip system or subsystem; (2) a set of one or more ICs, optionally including memory storage for storing data and programs; (3) an ASIC such as a modem; (4) a module that can be embedded within other devices; (5) a receiver, terminal device, smart terminal device, cellular telephone, wireless device, handset, mobile unit, vehicular device, network device, cloud device, artificial intelligence device, etc.; (6) other; etc.

[0358] Figure 5B FIG. 52 shows a structure diagram of a chip 5200 according to an embodiment of the present disclosure. For the case that the communication device 5100 is a chip or chip system, the structure diagram of the chip 5200 shown in FIG. 52 can be referred to, but is not limited thereto. Figure 5B

[0359] The chip 5200 includes one or more processors 5201. The chip 5200 is configured to perform any of the above methods.

[0360] In some embodiments, the chip 5200 further includes one or more interface circuits 5202. Optionally, the terms interface circuit, interface, transceiver pin, etc. can be replaced by each other. In some embodiments, the chip 5200 further includes one or more memories 5203 for storing data. Optionally, all or part of the memory 5203 can be outside the chip 5200. Optionally, the interface circuit 5202 is connected with the memory 5203, and the interface circuit 5202 can be configured to receive data from the memory 5203 or other devices, and the interface circuit 5202 can be configured to send data to the memory 5203 or other devices. For example, the interface circuit 5202 can read data stored in the memory 5203 and send the data to the processor 5201.

[0361] In some embodiments, the interface circuit 5202 performs at least one of the communication steps (such as steps S201, S202, but not limited thereto) in the above methods. The interface circuit 5202 performing the communication steps in the above methods, for example, means that the interface circuit 5202 performs data interaction between the processor 5201, the chip 5200, the memory 5203 or the transceiver device. In some embodiments, the processor 5201 performs at least one of the other steps (such as steps S201, S202, but not limited thereto).

[0362] ​The modules and / or devices described in various embodiments of the virtual device, the physical device, the chip, etc. can be combined or separated according to circumstances. Alternatively, part or all of the steps can also be performed by a plurality of modules and / or devices in cooperation, which is not limited here.

[0363] The disclosure also proposes a storage medium, and the storage medium stores instructions, which, when executed on the communication device 5100, cause the communication device 5100 to perform any of the above methods. Alternatively, the storage medium is an electronic storage medium. Alternatively, the storage medium is a computer readable storage medium, but is not limited to this, and it can also be a storage medium readable by other devices. Alternatively, the storage medium can be a non-transitory storage medium, but is not limited to this, and it can also be a transitory storage medium.

[0364] The disclosure also proposes a program product, which, when executed by the communication device 5100, causes the communication device 7100 to perform any of the above methods. Alternatively, the program product is a computer program product.

[0365] The disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any of the above methods.

Claims

1. An information processing method characterized by comprising: The method is performed by a terminal, and the method comprises: determining a first condition according to a predefined rule or indication information sent by a network device; determining a first timing advance (TA) in at least one TA according to the first condition; maintaining the first TA.

2. The method of claim 1, wherein, The at least one TA is one of: a second TA; the second TA and a third TA; wherein the second TA is a TA maintained by the terminal, and the third TA is a TA indicated by the network device in a case where a quantity of the second TA is equal to a threshold value.

3. The method of claim 2, wherein, In a case where the at least one TA is the second TA, the method further comprises: maintaining the third TA; wherein a sum of a quantity of the first TA and a quantity of the third TA is less than or equal to the quantity threshold value.

4. The method according to any one of claims 1 to 3, characterized in that, The first condition comprises at least one of: a TA corresponding to a first cell in which a measurement result meets a first measurement requirement in a cell corresponding to the at least one TA; a TA corresponding to a first beam in which a measurement result meets a second measurement requirement in a beam corresponding to the at least one TA; a TA corresponding to an activated transmission configuration indication (TCI) state in a TCI state corresponding to the at least one TA; a TA obtained through an indication of the network device in the at least one TA; a TA corresponding to a cell meeting a first condition in a candidate cell corresponding to the at least one TA, wherein the first condition is a first condition corresponding to a condition-based mobility; a TA corresponding to a serving cell; a TA corresponding to a first remaining maintenance duration meeting a duration requirement in a remaining maintenance duration corresponding to the at least one TA.

5. The method according to any one of claims 1 to 4, characterized in that, The method further comprises: sending, to the network device, first information, wherein the first information is used to indicate that the terminal supports maintaining a quantity of TAs.

6. The method according to any one of claims 1 to 5, characterized in that, The method further comprises: sending, to the network device, second information, wherein the second information is used to indicate at least one of: a quantity of TAs maintained by the terminal; an identifier corresponding to a TA maintained by the terminal; an identifier corresponding to a TA not maintained by the terminal; an identifier corresponding to a fourth TA stopped from being maintained by the terminal; a reason why the terminal stops maintaining the fourth TA.

7. The method according to any one of claims 1 to 6, characterized in that, The method further comprises: sending, to the network device, third information, wherein the third information is used to indicate at least one of: an identifier of a TA requested to be maintained by the network device; an identifier of a TA requested to be deleted by the network device; a reason why a TA is requested to be deleted by the network device.

8. An information transmission method characterized by comprising: The method is performed by a network device, and the method comprises: sending, to a terminal, indication information, wherein the indication information is used to indicate a first condition, and the first condition is used for the terminal to determine a first TA required in at least one timing advance (TA).

9. The method of claim 8, wherein, The at least one TA is one of: a second TA maintained by the terminal; the second TA and a third TA; wherein the second TA is a TA maintained by the terminal, and the third TA is a TA indicated by the network device in a case where a quantity of the second TA is equal to a threshold value.

10. The method of any one of claims 8-9, wherein, The first TA comprises at least one of: a TA corresponding to a first cell in which a measurement result meets a first measurement requirement in a cell corresponding to the at least one TA; The TA corresponding to a first beam in the at least one TA corresponding to the beam whose measurement result meets the second measurement requirement; The TA corresponding to an activated TCI state in the at least one TA corresponding to a transmission configuration indication state TCI state; The TA obtained by the network device indicating in the at least one TA; The cell meeting the first condition in the at least one TA corresponding to a candidate cell, wherein the condition is the first condition corresponding to the condition-based mobility; The TA corresponding to a serving cell; The TA corresponding to a first residual maintenance duration meeting the duration requirement in the at least one TA corresponding to a residual maintenance duration.

11. The method according to any one of claims 1 to 3, characterized in that, The method further comprises: Receiving first information sent by the terminal, wherein the first information is used to indicate the number of TAs maintained by the terminal.

12. The method according to any one of claims 1 to 4, characterized in that, The method further comprises: Receiving second information sent by the terminal, wherein the second information is used to indicate at least one of the following: The number of TAs maintained by the terminal; The identity of the TA maintained by the terminal; The identity of the TA not maintained by the terminal; The identity of the fourth TA stopped by the terminal; The reason for the terminal to stop maintaining the fourth TA.

13. The method according to any one of claims 1 to 5, characterized in that, The method further comprises: Receiving third information sent by the terminal, wherein the third information is used to indicate at least one of the following: The identity of the TA requested to be maintained by the network device; The identity of the TA requested to be deleted by the network device; The reason for the network device to delete the TA.

14. An information processing apparatus comprising: The apparatus comprises: A processing module configured to determine a first condition according to a predefined rule, or a receiving module configured to receive indication information sent by a network device, wherein the indication information is used to indicate the first condition; The processing module is further configured to determine a first TA in at least one TA according to the first condition; and maintain the first TA.

15. An information transmitting apparatus, characterized by comprising: The apparatus comprises: A sending module configured to send indication information to a terminal, wherein the indication information is used to indicate a first condition, and the first condition is used by the terminal to determine a first TA needed in at least one TA.

16. A terminal, characterized by Comprise: One or more processors; The terminal is configured to execute the information processing method in any one of claims 1 to 7.

17. A network device, comprising: Comprise: One or more processors; The network device is configured to execute the information sending method in any one of claims 8 to 13.

18. A communication system, characterized by The terminal and the network device are configured to implement the information processing method in any one of claims 1 to 7 and the information sending method in any one of claims 8 to 13.

19. A storage medium, the storage medium storing instructions, wherein, When the instructions run on a communication device, the communication device executes the information processing method in any one of claims 1 to 7, and / or the information sending method in any one of claims 8 to 13.

20. A program product, characterized by The above program product is executed by a communication device, so that the communication device executes the information processing method in any one of claims 1 to 7, and / or the information sending method in any one of claims 8 to 13.

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