CN116744428A - Maintenance method, terminal and computer readable storage medium for uplink time sequence - Google Patents
Maintenance method, terminal and computer readable storage medium for uplink time sequence Download PDFInfo
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- CN116744428A CN116744428A CN202210199426.9A CN202210199426A CN116744428A CN 116744428 A CN116744428 A CN 116744428A CN 202210199426 A CN202210199426 A CN 202210199426A CN 116744428 A CN116744428 A CN 116744428A
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- 238000012423 maintenance Methods 0.000 title claims abstract description 95
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/0005—Synchronisation arrangements synchronizing of arrival of multiple uplinks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The embodiment of the application relates to the technical field of communication, and discloses a maintenance method of uplink time sequence, a terminal and a computer readable storage medium. The maintenance method of the uplink time sequence comprises the following steps: determining the working state of the terminal; determining a target time sequence maintenance mode corresponding to the working state; the target time sequence maintenance modes corresponding to the partial working states of the terminal are different; and adjusting the uplink time sequence of the terminal according to the target time sequence maintenance mode so as to synchronize the uplink time sequence of the terminal with the uplink time sequence of the base station, so that the maintenance performance of the terminal on the uplink time sequence under different application scenes can be improved, and the robustness of the maintenance on the uplink time sequence is improved.
Description
Technical Field
The embodiment of the application relates to the technical field of communication, in particular to a maintenance method, a terminal and a computer readable storage medium for uplink time sequence.
Background
In the field of wireless communication, the first step in establishing communication between a terminal and a base station is frame frequency synchronization on both sides, i.e. uplink time sequence establishment between the terminal and the base station. After the initial time sequence synchronization is completed, the time sequence is out of step due to the factors of movement of the terminal, change of channel conditions, performance of a hardware crystal oscillator, design of a test scene and the like, and the communication link between the terminal and the base station is broken and data interaction fails due to the out of step of the time sequence.
At present, when the terminal maintains the uplink time sequence, a fixed time sequence maintenance mode is generally adopted, however, the fixed time sequence maintenance mode still enables the uplink time sequence of the terminal to be not maintained correctly in some application scenes, the robustness of the uplink time sequence maintenance is poor, and finally the use experience of a terminal user is affected.
Disclosure of Invention
The main purpose of the embodiment of the application is to provide a maintenance method of an uplink time sequence, so that the maintenance performance of a terminal on the uplink time sequence under different application scenes can be improved, and the robustness on the maintenance of the uplink time sequence is improved.
To achieve at least the above object, an embodiment of the present application provides a method for maintaining an uplink timing, which is applied to a terminal, including: determining the working state of the terminal; determining a target time sequence maintenance mode corresponding to the working state; the target time sequence maintenance modes corresponding to the partial working states of the terminal are different; and adjusting the uplink time sequence of the terminal according to the target time sequence maintenance mode so as to synchronize the uplink time sequence of the terminal with the uplink time sequence of the base station.
In order to achieve the above object, an embodiment of the present application further provides a terminal, including: at least one processor; and a memory communicatively coupled to the at least one processor; the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor, so that the at least one processor can execute the maintenance method of the uplink timing.
To achieve at least the above object, an embodiment of the present application further provides a computer readable storage medium storing a computer program, where the computer program when executed by a processor implements the above-mentioned method for maintaining uplink time sequences.
According to the method for maintaining the uplink time sequence, the working state of the terminal is determined firstly, then, the target time sequence maintenance mode corresponding to the working state is determined, the target time sequence maintenance modes corresponding to part of the working states of the terminal are different, then, the uplink time sequence of the terminal is adjusted according to the target time sequence maintenance modes, so that the uplink time sequence of the terminal is synchronous with the uplink time sequence of the base station, namely, the time sequence maintenance mode adopted by the terminal is not fixed and unchanged, but is determined in a self-adaptive manner according to the current working state, and different working states correspond to different application scenes, namely, in the embodiment of the application, the time sequence maintenance mode of the current scene can be adaptively selected according to the different application scenes where the terminal is positioned, the same fixed and unchanged time sequence maintenance mode is avoided in all application scenes, the maintenance performance of the terminal on the uplink time sequence is improved, the robustness on the uplink time sequence maintenance is improved, and the use experience of a terminal user is improved.
Drawings
FIG. 1 is a flow chart of a maintenance method of an uplink timing sequence according to an embodiment of the present application;
FIG. 2 is a block diagram of a method for implementing maintenance of uplink time sequences in accordance with an embodiment of the present application;
fig. 3 is a schematic structural diagram of a terminal according to an embodiment of the present application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the embodiments of the present application will be described in detail below with reference to the accompanying drawings. However, it will be understood by those of ordinary skill in the art that in various embodiments of the present application, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the claimed technical solution of the present application can be realized without these technical details and various changes and modifications based on the following embodiments. The following embodiments are divided for convenience of description, and should not be construed as limiting the specific implementation of the present application, and the embodiments can be mutually combined and referred to without contradiction.
The embodiment of the application provides a maintenance method of an uplink time sequence, which is applied to a terminal. The terminal can be a terminal in the field of wireless communication, such as a mobile phone, a test instrument and the like. In the embodiment of the application, the terminal synchronously maintains the uplink time sequence according to the working state of the terminal, so that the problem that the uplink time sequence of the terminal cannot be correctly synchronized in some application scenes is solved, the maintenance performance of the terminal on the uplink time sequence in different application scenes can be improved, and the robustness of the maintenance on the uplink time sequence is increased.
In some embodiments, a flowchart of a method for maintaining uplink timing may refer to fig. 1, including:
step 101: and determining the working state of the terminal.
Step 102: determining a target time sequence maintenance mode corresponding to the working state; the target time sequence maintenance modes corresponding to the partial working states of the terminals are different.
Step 103: and adjusting the uplink time sequence of the terminal according to the target time sequence maintenance mode so as to synchronize the uplink time sequence of the terminal with the uplink time sequence of the base station.
In this embodiment, the timing maintenance mode adopted by the terminal is not fixed and is adaptively determined according to the current working state, and different working states correspond to different application scenarios, that is, in this embodiment, the timing maintenance mode of the current scenario can be adaptively selected according to different application scenarios where the terminal is located, so that the same fixed and unchanged timing maintenance mode is avoided in all application scenarios, which is beneficial to improving the maintenance performance of the terminal on uplink timing in different application scenarios, increasing the robustness on uplink timing maintenance, and improving the use experience of the terminal user.
The implementation details of the method for maintaining the uplink timing in this embodiment are specifically described below, and the following description is provided only for convenience of understanding, and is not necessary to implement this embodiment.
In step 101, the terminal may start working state monitoring after starting up to obtain its current working state in real time. For example, the working state of the terminal can be identified according to the using process of the terminal, and the terminal is judged to be in a specific state stage. The working states of the terminal can include an idle state, a link state and a deactivation state. After the terminal is started, the working state can be switched among an idle state, a link state and a deactivation state. It can be understood that the terminal is applied in different scenarios, and generally undergoes the processes of starting up, configuring the terminal, downlink synchronization, uplink synchronization, data interaction with the base station and completing the interaction to release the terminal, and the above processes can be categorized into three phases of idle state, connection state and deactivation state of the terminal in the standard protocol.
In some embodiments, determining the operating state of the terminal, step 101, includes: determining the working state of the terminal according to a preset working state identification factor; wherein, the operating condition identification factor includes: external inputs to the terminal and/or data interactions of the terminal with the base station.
The external input to the terminal may originate from a human intervention operation which may be to set the operating state of the terminal for the human or to modify the configuration information of the terminal for the human to adjust the operating state of the terminal. Therefore, the terminal can determine the current working state according to the external input.
The data interaction between the terminal and the base station may include: the signaling interaction between the terminal and the base station may include signaling interaction between the terminal and the base station during the process of accessing or disconnecting the terminal from the base station. The terminal can determine the current working state according to the signaling transmitted between the terminal and the base station.
In some embodiments, in the case where the operating state recognition factor includes an external input of the terminal, the terminal may directly obtain the external input, and determine the current operating state of the terminal according to the external input.
In some embodiments, in a case where the operation state identification factor includes data interaction between the terminal and the base station, determining the operation state of the terminal according to the preset operation state identification factor includes: under the condition that the first condition or the second condition is met, determining that the working state of the terminal is an idle state; wherein, the first condition is: the terminal is started initially and is not accessed initially, and the second condition is that: the terminal receives the radio resource control Release (Radio Resource Control, RRC Release) message or the radio link failure (Radio Link Failure, RLF) message, which is beneficial to accurately and reasonably identifying the idle state of the terminal.
That is, when the terminal is initially powered on and the access procedure of the initial access base station is not performed, it may be determined that the current state of the terminal is an idle state. Or when the terminal receives the RRC Release message or the RLF message, the current state of the terminal can be determined to be an idle state. When the terminal receives the RRC Release message, the terminal enters an idle state from a link state to an RRC disconnection state with the base station. When the terminal receives the RLF message, the interface between the base station and the core network is broken, and the terminal enters an idle state.
In some embodiments, when the working state identification factor includes data interaction between the terminal and the base station, determining the working state of the terminal according to the preset working state identification factor includes: under the condition that the third condition or the fourth condition is met, determining that the working state of the terminal is a link state; wherein the third condition is: the terminal is started initially, initiates a random access response (Random Access Response, RAR) to the base station and accesses the third access signaling MSG3 randomly, and receives a timing advance command (Time Advance control, TAC), and the fourth condition is that: the base station triggers paging information when the terminal is in a deactivated state, and the terminal initiates an access flow in an uplink under a downlink synchronous state, so that the link state of the terminal can be accurately and reasonably identified. MSG3 is a terminal sending, RRC setup request or reestablishment request to the base station.
That is, when the terminal starts up to initiate the RAR (the flow of going through MSG1- > MSG2- > MSG3- > MSG 4), the terminal randomly accesses to MSG3, and if the uplink receives TAC through the RAR, the current state of the terminal can be determined to be the link state. Or when the terminal is in a deactivated state, when the base station triggers the paging message, after the terminal receives the paging message, the terminal initiates an access flow in an uplink state in a downlink synchronous state, and accesses to MSG1- > MSG2- > MSG3- > MSG4, so that the current state of the terminal can be determined to be a link state.
In some embodiments, the initial access and initiating the random access response described above may involve the following procedure: the terminal sends a first access signaling (message 1, abbreviated as MSG 1) for accessing the base station to the base station, the base station sends a second access signaling (message 2, abbreviated as MSG 2) for responding to the MSG1 to the terminal after receiving the MSG1, the terminal sends a third access signaling (message 3, abbreviated as MSG 3) for establishing a radio resource control (Radio Resource Control, abbreviated as RRC) request or reestablishing a request to the base station after receiving the MSG2, the base station can send a fourth access signaling (message 4, abbreviated as MSG 4) for indicating the UE to establish or reestablish the RRC after receiving the MSG3, and the terminal can send a fifth access signaling (message 5, abbreviated as MSG 5) for completing the RRC establishment or reestablishing to the base station after receiving the MSG 4.
In some embodiments, when the working state identification factor includes data interaction between the terminal and the base station, determining the working state of the terminal according to the preset working state identification factor includes: under the condition that the fifth condition is met, determining that the working state of the terminal is a deactivation state; wherein the fifth condition is: the terminal does not Release the context information when receiving the RRC Release message, and the uplink between the terminal and the base station is disconnected, so that the deactivation state of the terminal can be accurately and reasonably identified.
That is, when the terminal receives the RRC Release message and the terminal does not Release the context, the terminal and the base station perform uplink link breaking, and no information interaction is performed, it may be determined that the current working state of the terminal is a deactivated state.
In some embodiments, in a case where the operation state recognition factor includes external input of the terminal and data interaction of the terminal with the base station, determining the operation state of the terminal according to the preset operation state recognition factor includes: and determining the working state of the terminal according to the external input of the terminal and the data interaction of the terminal and the base station. For example, the terminal may determine the first reference working state according to the external input of the terminal, determine the second reference working state according to the data interaction between the terminal and the base station, and finally determine the current working state of the terminal according to the first reference working state and the second reference working state. For example, if the first reference working state and the second reference working state are the same, it may be determined that the current working state of the terminal is the first reference working state or the second reference working state. If the first reference working state and the second reference working state are different, determining whether the first reference working state or the second reference working state is finally determined as the current working state of the terminal according to the priority of the preset working state identification factors. For example, if the priority of the external input of the terminal is higher than the priority of the data interaction of the terminal with the base station, the first reference operating state may be finally determined as the current operating state of the terminal, and if the priority of the data interaction of the terminal with the base station is higher than the priority of the external input of the terminal, the second reference operating state may be finally determined as the current operating state of the terminal.
In step 102, the terminal may determine a target timing maintenance mode corresponding to the current working state of the terminal according to a corresponding relation between the pre-stored working state and the target timing maintenance mode; the target time sequence maintenance modes corresponding to the partial working states of the terminals are different. In all the working states of the terminal, each working state corresponds to a target time sequence maintenance mode, the target time sequence maintenance modes corresponding to part of the working states of the terminal are different, namely, the target time sequence maintenance modes corresponding to the part of the working states are different, and the target time sequence maintenance modes corresponding to the part of the working states are the same.
For example, the total working states of the terminal include 3 types, which are respectively: working state 1, working state 2, working state 3, working state 1 corresponds to target time sequence maintenance mode 1, working state 2 corresponds to target time sequence maintenance mode 2, and working state 3 corresponds to target time sequence maintenance mode 3. The different target time sequence maintenance modes corresponding to the partial working states of the terminal can be understood as follows: the target time sequence maintenance modes corresponding to the working state 1 and the working state 2 are different, namely the target time sequence maintenance mode 1 and the target time sequence maintenance mode 2 are different; it can also be understood that: the target time sequence maintenance modes corresponding to the working state 1 and the working state 3 are different, namely the target time sequence maintenance mode 1 and the target time sequence maintenance mode 3 are different; it can also be understood that: the target time sequence maintenance modes corresponding to the working state 2 and the working state 3 are different, namely the target time sequence maintenance mode 2 and the target time sequence maintenance mode 3 are different.
In some embodiments, the working state of the terminal is any one of the following: an idle state, a linked state, and a deactivated state; the target time sequence maintenance mode corresponding to the idle state is a first mode, the target time sequence maintenance mode corresponding to the link state is a second mode, and the target time sequence maintenance mode corresponding to the deactivation state is a first mode. The first mode is to adjust the uplink time sequence of the terminal along with the downlink time sequence of the terminal, and the second mode is to adjust the uplink time sequence of the terminal according to the uplink time sequence offset measured by the base station. That is, the target timing maintenance modes corresponding to the idle state and the deactivated state are the same, and the target timing maintenance modes corresponding to the idle state and the linked state are different.
In this embodiment, considering that the uplink does not have timing maintenance of the medium access control layer control element (Media Access Control Control element, MACCE) when the terminal is in the idle state and the deactivated state, it is difficult to obtain the uplink timing offset through the interactive measurement between the terminal and the base station, so the uplink timing of the terminal is adjusted in the first manner. Because the downlink time sequence of the terminal is synchronous with the base station, the terminal can adjust the uplink time sequence along with the downlink time sequence, and the downlink time sequence is adjusted by a certain amount, and the corresponding uplink time sequence is adjusted by a certain amount. Meanwhile, when the terminal is in a connection state, the uplink time sequence offset can be accurately measured through signaling interaction with the base station, so that the uplink time sequence of the terminal is adjusted in the second mode. In this embodiment, a target timing maintenance mode suitable for the current working state is selected according to the characteristics of the terminal in different working states, which is favorable for improving the maintenance performance of the terminal on the uplink timing in different application scenarios, increasing the robustness on the uplink timing maintenance, and improving the experience of the user and the timing performance of the terminal.
In some embodiments, when the working state is a link state, adjusting the uplink timing of the terminal according to the target timing maintenance mode, so that the uplink timing of the terminal is synchronous with the uplink timing of the base station, including: and receiving a timing advance command TAC sent by the base station, acquiring an uplink time sequence offset measured by the base station carried in the TAC, and adjusting the uplink time sequence of the terminal according to the uplink time sequence offset so as to synchronize the uplink time sequence of the terminal with the uplink time sequence of the base station. The uplink time sequence offset measured by the base station may be an offset of an uplink time sequence of the terminal, specifically, an offset of a current uplink time sequence of the terminal relative to an uplink time sequence of the base station. In a specific implementation, the measured offset of the uplink time sequence of the terminal can be adjusted.
In some embodiments, the uplink timing offset is measured by the base station via an uplink physical shared channel (Physical Uplink Shared Channel, PUSCH) traffic or channel sounding signal (Sounding Reference Signal, SRS). In a specific implementation, a base station can obtain MACCE with timing adjustment through PUSCH service or SRS measurement, and then maintain uplink timing of a terminal through a TAC control instruction carrying a measurement result of the base station, so as to maintain uplink timing synchronization of the terminal and the base station. The measurement result of the base station is the offset of the uplink time sequence of the terminal measured by the base station.
In some embodiments, the method for maintaining the uplink timing may be implemented by a block diagram as shown in fig. 2, where the terminal includes: a timing maintenance function unit 201, a business function processing unit 202, and a flow control component 203. Wherein the timing maintenance function unit 201 includes: a working state determination module 2011, a target timing maintenance mode selection module 2012 and a timing calculation module 2013.
The following briefly describes each module in the timing maintenance function unit 201:
the input of the working state determining module 2011 is the external operation of the terminal and/or the control result of the flow control component 203, and the flow control component 203 gives a determining instruction to the working state of the terminal through signaling interaction with the base station, service scene and the like. The external operation of the terminal may be external input of the terminal, and the control result of the flow control component 203 may be a data interaction result of the terminal and the base station, and then the working state determining module 2011 may be considered to be used for determining the current working state of the terminal according to the external input of the terminal and/or the data interaction result of the terminal and the base station.
The target timing maintenance mode selection module 2012 is configured to determine a target timing maintenance mode corresponding to the current working state according to the current working state of the terminal, that is, dynamically select, according to the current working state of the terminal, whether to perform adjustment maintenance on the uplink timing with the downlink timing or perform adjustment maintenance on the uplink timing according to the timing offset measured by the base station.
The timing calculation module 2013 is configured to complete generation and maintenance of the timing by using the selected target timing maintenance mode, generate a correct and stable uplink timing, and be used for the service function processing unit 202 of the terminal to complete processing of the service function.
In this embodiment, the maintenance method of the uplink timing sequence is applied to the wireless communication system of the terminal and the base station, so that not only can the accuracy of the uplink timing sequence of the terminal be maintained in the basic application scenario of the wireless communication system, but also the uplink timing sequence of the terminal can be accurately maintained in the following scenarios:
scene one: the 5 th generation new air interface (5G New Radio,5G NR) has the characteristics of downlink multipath/multi-beam, and when the downlink bias measurement of a switching scene is abnormal, the uplink random access time sequence of switching is abnormal, and the switching fails;
scene II: after downlink synchronization, the terminal is placed for a long time and is not accessed, when random access is started again, the downlink time sequence is subjected to time bias adjustment, the uplink time sequence is not maintained, the frame frequency difference is overlarge, and an uplink data base station sent by the terminal cannot detect that the random access fails in a correct time window;
scene III: in the aggregation carrier scene, the main carrier is accessed, the process placement is firstly not activated after the auxiliary carrier is added, and then when the auxiliary carrier is activated, the uplink time sequence is not maintained, and the frame frequency difference is overlarge, so that the activation of the auxiliary carrier is failed;
scene four: and on the terminals of the independent neighbor cell switching scenes, including the 5G switching scene and the 4/5G switching scene, the uplink of the terminal serving as the measurement cell has no service, so that the TAC is not maintained, and the uplink time sequence of random access during switching is not normally maintained, so that switching failure is caused.
The four scenes are all the performance indexes representing the key of the terminal, and are also the embodiment of the terminal value, and the maintenance method of the uplink time sequence in the embodiment can accurately maintain the uplink time sequence of the terminal under the four scenes, so that the robustness of the maintenance of the uplink time sequence is improved. In this embodiment, the mechanism and flexibility of terminal timing maintenance are optimized, the traditional timing maintenance method is made up of the advantages of the original uplink timing, the defects are improved, the method can adapt to the current 5G NR terminal application scenario, the problem that the uplink timing cannot be maintained in a special scenario is solved, and the performance of the terminal is improved.
It should be noted that, the foregoing examples in the embodiments of the present application are all illustrative for easy understanding, and do not limit the technical solution of the present application.
The above steps of the methods are divided, for clarity of description, and may be combined into one step or split into multiple steps when implemented, so long as they include the same logic relationship, and they are all within the protection scope of this patent; it is within the scope of this patent to add insignificant modifications to the algorithm or flow or introduce insignificant designs, but not to alter the core design of its algorithm and flow.
The embodiment of the application also provides a terminal, as shown in fig. 3, including at least one processor 301; and a memory 302 communicatively coupled to the at least one processor 301; the memory 302 stores instructions executable by the at least one processor 301, and the instructions are executed by the at least one processor 301, so that the at least one processor 301 can execute the method for maintaining the uplink timing in the above embodiment.
Where the memory 302 and the processor 301 are connected by a bus, the bus may comprise any number of interconnected buses and bridges, the buses connecting the various circuits of the one or more processors 301 and the memory 302 together. The bus may also connect various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface between the bus and the transceiver. The transceiver may be one element or may be a plurality of elements, such as a plurality of receivers and transmitters, providing a means for communicating with various other apparatus over a transmission medium. The data processed by the processor 301 is transmitted over a wireless medium via an antenna, which further receives the data and transmits the data to the processor 301.
The processor 301 is responsible for managing the bus and general processing and may also provide various functions including timing, peripheral interfaces, voltage regulation, power management, and other control functions. And memory 302 may be used to store data used by processor 301 in performing operations.
The embodiment of the application also provides a computer readable storage medium which stores a computer program. The computer program implements the above-described method embodiments when executed by a processor.
That is, it will be understood by those skilled in the art that all or part of the steps in implementing the methods of the embodiments described above may be implemented by a program stored in a storage medium, where the program includes several instructions for causing a device (which may be a single-chip microcomputer, a chip or the like) or a processor (processor) to perform all or part of the steps in the methods of the embodiments of the application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples of carrying out the application and that various changes in form and details may be made therein without departing from the spirit and scope of the application.
Claims (10)
1. The maintenance method of the uplink time sequence is characterized by being applied to a terminal and comprising the following steps:
determining the working state of the terminal;
determining a target time sequence maintenance mode corresponding to the working state; the target time sequence maintenance modes corresponding to the partial working states of the terminal are different;
and adjusting the uplink time sequence of the terminal according to the target time sequence maintenance mode so as to synchronize the uplink time sequence of the terminal with the uplink time sequence of the base station.
2. The maintenance method of an uplink timing sequence according to claim 1, wherein the operating state is any one of the following: an idle state, a linked state, and a deactivated state; the target time sequence maintenance mode corresponding to the idle state is a first mode, the target time sequence maintenance mode corresponding to the link state is a second mode, and the target time sequence maintenance mode corresponding to the deactivation state is the first mode;
the first mode is to adjust the uplink time sequence of the terminal along with the downlink time sequence of the terminal, and the second mode is to adjust the uplink time sequence of the terminal according to the uplink time sequence offset measured by the base station.
3. The method for maintaining an uplink timing according to claim 2, wherein, when the working state is the link state, the adjusting the uplink timing of the terminal according to the target timing maintenance mode to synchronize the uplink timing of the terminal with the uplink timing of the base station includes:
receiving a timing advance command TAC sent by the base station;
acquiring an uplink time sequence offset measured by the base station carried in the TAC;
and adjusting the uplink time sequence of the terminal according to the uplink time sequence offset so as to synchronize the uplink time sequence of the terminal with the uplink time sequence of the base station.
4. The method for maintaining uplink timing according to claim 2, wherein the uplink timing offset is measured by the base station through uplink physical shared channel PUSCH traffic or channel sounding signal SRS.
5. The method for maintaining an uplink timing according to any one of claims 1 to 4, wherein determining the operating state of the terminal includes:
determining the working state of the terminal according to a preset working state identification factor; wherein, the operating condition identification factor includes: external input of the terminal and/or data interaction of the terminal with the base station.
6. The method for maintaining an uplink timing sequence according to claim 5, wherein, in a case where the operation state identification factor includes data interaction between the terminal and the base station, determining the operation state of the terminal according to a preset operation state identification factor includes:
under the condition that the first condition or the second condition is met, determining that the working state of the terminal is an idle state;
wherein the first condition is: the terminal is started initially and is not accessed initially, and the second condition is that: and the terminal receives the RRC Release message or the radio link failure RLF message.
7. The method for maintaining an uplink timing sequence according to claim 5, wherein, in a case where the operation state identification factor includes data interaction between the terminal and the base station, determining the operation state of the terminal according to a preset operation state identification factor includes:
under the condition that the third condition or the fourth condition is met, determining that the working state of the terminal is a link state;
wherein the third condition is: the terminal is started initially, initiates a random access response RAR to the base station, randomly accesses a third access signaling MSG3, and receives a timing advance command TAC, and the fourth condition is that: the base station triggers paging information when the terminal is in a deactivated state, and the terminal initiates an access flow in an uplink mode in a downlink synchronous state.
8. The method for maintaining an uplink timing sequence according to claim 5, wherein, in a case where the operation state identification factor includes data interaction between the terminal and the base station, determining the operation state of the terminal according to a preset operation state identification factor includes:
under the condition that the fifth condition is met, determining that the working state of the terminal is a deactivation state;
wherein the fifth condition is: the terminal does not Release the context information when receiving the RRC Release message, and the uplink between the terminal and the base station is disconnected.
9. A terminal, comprising: at least one processor; the method comprises the steps of,
a memory communicatively coupled to the at least one processor; wherein, the liquid crystal display device comprises a liquid crystal display device,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of maintaining uplink timing according to any one of claims 1 to 8.
10. A computer readable storage medium storing a computer program, wherein the computer program when executed by a processor implements the method for maintaining uplink timing according to any one of claims 1 to 8.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210199426.9A CN116744428A (en) | 2022-03-02 | 2022-03-02 | Maintenance method, terminal and computer readable storage medium for uplink time sequence |
| PCT/CN2022/130448 WO2023165154A1 (en) | 2022-03-02 | 2022-11-08 | Uplink time sequence maintenance method, terminal, and computer-readable storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210199426.9A CN116744428A (en) | 2022-03-02 | 2022-03-02 | Maintenance method, terminal and computer readable storage medium for uplink time sequence |
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| Publication Number | Publication Date |
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| CN116744428A true CN116744428A (en) | 2023-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210199426.9A Pending CN116744428A (en) | 2022-03-02 | 2022-03-02 | Maintenance method, terminal and computer readable storage medium for uplink time sequence |
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| CN (1) | CN116744428A (en) |
| WO (1) | WO2023165154A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103024890B (en) * | 2011-09-20 | 2017-02-08 | 中兴通讯股份有限公司 | Method, evolved node B and terminal for uplink synchronization of secondary cell |
| US10455531B2 (en) * | 2016-11-01 | 2019-10-22 | Asustek Computer Inc. | Method and apparatus for identifying uplink timing advance in a wireless communication system |
| US11490346B2 (en) * | 2019-02-01 | 2022-11-01 | Qualcomm Incorporated | Open loop timing control for 2-step RACH |
| CN111193571B (en) * | 2019-12-26 | 2022-03-22 | 海能达通信股份有限公司 | Uplink data synchronization method and device |
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2022
- 2022-03-02 CN CN202210199426.9A patent/CN116744428A/en active Pending
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| WO2023165154A1 (en) | 2023-09-07 |
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