Processing method, communication device and storage medium

Abstract

The invention provides a processing method, communication equipment and a storage medium, and the processing method comprises the steps: responding to a received time advance value of at least one candidate cell, and starting or restarting a time advance timer. Through the technical scheme of the invention, a time advance processing mechanism is perfected, and then random access-free condition LTM switching is supported.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a processing method, a communication device and a storage medium. Background Art

[0002] Timing Advance (TA) is a key technology for uplink synchronization in cellular communication systems. The TA mechanism ensures that data sent from terminal devices at different distances can arrive at network devices synchronously, thereby avoiding inter-symbol interference and inter-subcarrier interference in the uplink.

[0003] During the process of conceiving and implementing the present application, the inventors discovered that there are at least the following problems: in the existing protocol, during the conditional LTM (L1 / L2 Triggered Mobility) switching process, the time advance processing mechanism is not perfect, and thus cannot support random access-free conditional LTM switching. Therefore, it is necessary to improve the time advance processing mechanism.

[0004] The preceding description is intended to provide general background information and does not necessarily constitute prior art. Summary of the invention

[0005] The main purpose of this application is to provide a processing method, a communication device and a storage medium, aiming to improve the time advance processing mechanism and thereby support LTM switching without random access conditions.

[0006] The present application provides a processing method which can be applied to a terminal device (such as a mobile phone), comprising the steps of:

[0007] S2: In response to receiving a timing advance value of at least one candidate cell, start or restart a timing advance timer.

[0008] Optionally, the method further comprises at least one of the following:

[0009] The timing advance value of at least one candidate cell is carried in the medium access control element;

[0010] The at least one candidate cell includes all candidate cells;

[0011] At least one candidate cell timing advance value is not a maximum value;

[0012] The time advance timer includes a valid time advance timer.

[0013] Optionally, the method further comprises at least one of the following:

[0014] Sending a random access preamble to at least one candidate cell based on a physical downlink control channel command;

[0015] In response to at least one candidate cell satisfying a conditional LTM execution condition, triggering a conditional LTM cell handover;

[0016] In response to satisfying the conditional LTM execution condition, the radio resource control layer sends a conditional LTM cell handover request and / or a candidate cell identifier to the media access control layer.

[0017] Optionally, the method further comprises at least one of the following:

[0018] The timing advance timer is used to determine whether to apply the timing advance value of at least one candidate cell during the conditional LTM cell handover process;

[0019] The conditional LTM cell handover request and / or the candidate cell identifier is used to trigger the media access control layer to apply the timing advance value of at least one candidate cell;

[0020] The timing advance timer is used for at least one candidate cell.

[0021] The present application also provides a processing method, which can be applied to a network device (such as a base station), comprising the steps of:

[0022] S1: Sending a timing advance value of at least one candidate cell so that a terminal device receives the timing advance value of at least one candidate cell and starts or restarts a timing advance timer.

[0023] Optionally, the method further comprises at least one of the following:

[0024] The timing advance value of at least one candidate cell is carried in the medium access control element;

[0025] The at least one candidate cell includes all candidate cells;

[0026] The timing advance value of at least one candidate cell is not the maximum value;

[0027] The time advance timer includes a valid time advance timer.

[0028] Optionally, the method further comprises at least one of the following:

[0029] The terminal device sends a random access preamble to at least one candidate cell based on a physical downlink control channel command;

[0030] The terminal device triggers a conditional LTM cell handover in response to at least one candidate cell satisfying a conditional LTM execution condition;

[0031] In response to the terminal device satisfying the conditional LTM execution condition, the radio resource control layer sends a conditional LTM cell switching request and / or a candidate cell identifier to the media access control layer.

[0032] Optionally, the method further comprises at least one of the following:

[0033] The timing advance timer is used to determine whether to apply the timing advance value of at least one candidate cell during the conditional LTM cell handover process;

[0034] The conditional LTM cell handover request and / or the candidate cell identifier is used to trigger the media access control layer to apply the timing advance value of at least one candidate cell;

[0035] The timing advance timer is used for at least one candidate cell.

[0036] The present application also provides a communication device, comprising: a memory, a processor, and a processing program stored in the memory and executable on the processor, wherein the processing program implements the steps of any of the processing methods described above when executed by the processor.

[0037] The communication device in this application can be a terminal device (such as a mobile phone), a network device (such as a base station), or a chip (such as a SOC or a baseband chip with communication functions, etc.). The specific reference needs to be clarified based on the context.

[0038] The present application also provides a computer-readable storage medium, on which a processing program is stored. When the processing program is executed by a processor, the steps of any of the processing methods described above are implemented.

[0039] Through the above technical solution, the time advance processing mechanism is improved, thereby supporting LTM switching without random access conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application. In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor.

[0041] Figure 1 A schematic diagram of the hardware structure of a mobile terminal for implementing various embodiments of the present application;

[0042] Figure 2 A communication network system architecture diagram provided for an embodiment of the present application;

[0043] Figure 3 A schematic diagram of the hardware structure of a controller 140 provided in this application;

[0044] Figure 4A schematic diagram of the hardware structure of a network node 150 provided in this application;

[0045] Figure 5 is a schematic flow chart of a processing method according to the first embodiment;

[0046] Figure 6 is a schematic diagram of an interaction sequence according to the second embodiment;

[0047] Figure 7 is a flowchart of a processing method according to a fifth embodiment;

[0048] Figure 8 A schematic diagram of the structure of the processing device provided in the embodiment of the present application Figure 1 ;

[0049] Fig. 9 A schematic diagram of the structure of the processing device provided in the embodiment of the present application Figure 2 ;

[0050] Fig.10 A schematic diagram of the structure of a communication device provided in an embodiment of the present application.

[0051] The realization of the purpose, functional features and advantages of this application will be further described in conjunction with the embodiments and with reference to the accompanying drawings. The above-mentioned drawings have shown clear embodiments of this application, which will be described in more detail later. These drawings and textual descriptions are not intended to limit the scope of the concept of this application in any way, but to illustrate the concept of this application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0052] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0053] It should be noted that, in this article, the terms "comprises", "includes" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element, and / or, components, features, and elements with the same name in different embodiments of the present application may have the same meaning or different meanings, and their specific meanings need to be determined by their explanation in the specific embodiment or further combined with the context of the specific embodiment.

[0054] It should be understood that, although the terms first, second, third, etc. may be used to describe various information in this article, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this article, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein can be interpreted as "at the time of" or "when" or "in response to determination". Furthermore, as used in this article, the singular forms "one", "one" and "the" are intended to also include plural forms, unless there is an opposite indication in the context. It should be further understood that the terms "comprising" and "including" indicate that there are the described features, steps, operations, elements, components, projects, kinds, and / or groups, but do not exclude the existence, occurrence or addition of one or more other features, steps, operations, elements, components, projects, kinds, and / or groups. The terms "or", "and / or", "including at least one of the following" etc. used in this application can be interpreted as inclusive, or mean any one or any combination. For example, “comprising at least one of the following: A, B, C” means “any of the following: A; B; C; A and B; A and C; B and C; A and B and C”, and for another example, “A, B or C” or “A, B and / or C” means “any of the following: A; B; C; A and B; A and C; B and C; A and B and C”. An exception to this definition will only occur when a combination of elements, functions, steps or operations are inherently mutually exclusive in some manner.

[0055] It should be understood that, although the various steps in the flowchart in the embodiment of the present application are displayed in sequence according to the indication of the arrows, these steps are not necessarily performed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and it can be performed in other orders. Moreover, at least a portion of the steps in the figure may include a plurality of sub-steps or a plurality of stages, and these sub-steps or stages are not necessarily performed at the same time, but can be performed at different times, and their execution order is not necessarily performed in sequence, but can be performed in turn or alternately with other steps or at least a portion of the sub-steps or stages of other steps.

[0056] As used herein, the words "if" and "if" may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to determining" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)", depending on the context.

[0057] It should be noted that in this article, step codes such as S1 and S2 are used for the purpose of expressing the corresponding content more clearly and concisely, and do not constitute a substantial limitation on the order. When implementing the step, those skilled in the art may execute S2 first and then S1, etc., but these should all be within the scope of protection of this application.

[0058] It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0059] In the subsequent description, the suffixes such as "module", "component" or "unit" used to represent elements are only used to facilitate the description of the present application, and have no specific meanings. Therefore, "module", "component" or "unit" can be used in a mixed manner.

[0060] The communication device in this application can be a terminal device (such as a mobile phone), a network device (such as a base station), or a chip (such as a SOC or a baseband chip with communication functions, etc.). The specific reference needs to be clarified based on the context.

[0061] The terminal device may be implemented in various forms. For example, the terminal device described in this application may include intelligent terminal devices such as mobile phones, tablet computers, laptop computers, PDAs, portable media players (PMPs), navigation devices, wearable devices, smart bracelets, pedometers, etc., as well as fixed terminal devices such as digital TVs and desktop computers.

[0062] The subsequent description will be made by taking a mobile terminal as an example, and those skilled in the art will understand that, in addition to components specifically used for mobile purposes, the construction according to the embodiments of the present application can also be applied to fixed-type terminal devices.

[0063] See also Figure 1 , which is a schematic diagram of the hardware structure of a mobile terminal for implementing various embodiments of the present application, the mobile terminal 100 may include: RF (Radio Frequency, radio frequency) unit 101, WiFi module 102, audio output unit 103, A / V (audio / video) input unit 104, sensor 105, display unit 106, user input unit 107, interface unit 108, memory 109, processor 110, and power supply 111 and other components. Those skilled in the art can understand that Figure 1 The structure of the mobile terminal shown in the figure does not constitute a limitation on the mobile terminal. The mobile terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently.

[0064] Combine the following Figure 1 The following is a detailed introduction to the various components of the mobile terminal:

[0065] The radio frequency unit 101 can be used for receiving and sending signals during information transmission or communication. Specifically, after receiving the downlink information of the base station, it is sent to the processor 110 for processing; in addition, the uplink data is sent to the base station. Generally, the radio frequency unit 101 includes but is not limited to an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc. And / or, the radio frequency unit 101 can also communicate with the network and other devices through wireless communication. The above-mentioned wireless communications can use any communication standard or protocol, including but not limited to GSM (Global System of Mobile communication), GPRS (General Packet Radio Service), CDMA2000 (Code Division Multiple Access 2000), WCDMA (Wideband Code Division Multiple Access), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access), FDD-LTE (Frequency Division Duplexing-Long Term Evolution), TDD-LTE (Time Division Duplexing-Long Term Evolution), 5G and 6G, etc.

[0066] WiFi is a short-range wireless transmission technology. Mobile terminals can help users send and receive emails, browse web pages, and access streaming media through WiFi module 102. It provides users with wireless broadband Internet access. Figure 1 The WiFi module 102 is shown, but it is understandable that it is not an essential component of the mobile terminal and can be omitted as needed without changing the essence of the invention.

[0067] The audio output unit 103 can convert the audio data received by the RF unit 101 or the WiFi module 102 or stored in the memory 109 into an audio signal and output it as sound when the mobile terminal 100 is in a call signal reception mode, a talk mode, a recording mode, a voice recognition mode, a broadcast reception mode, etc. Moreover, the audio output unit 103 can also provide audio output related to a specific function performed by the mobile terminal 100 (for example, a call signal reception sound, a message reception sound, etc.). The audio output unit 103 may include a speaker, a buzzer, etc.

[0068] The A / V input unit 104 is used to receive audio or video signals. The A / V input unit 104 may include a graphics processor (GPU) 1041 and a microphone 1042, and the graphics processor 1041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The processed image frame can be displayed on the display unit 106. The image frame processed by the graphics processor 1041 can be stored in the memory 109 (or other storage medium) or sent via the radio frequency unit 101 or the WiFi module 102. The microphone 1042 can receive sound (audio data) via the microphone 1042 in a telephone call mode, a recording mode, a voice recognition mode, and other operating modes, and can process such sound into audio data. The processed audio (voice) data can be converted into a format output that can be sent to a mobile communication base station via the radio frequency unit 101 in the case of a telephone call mode. The microphone 1042 can implement various types of noise elimination (or suppression) algorithms to eliminate (or suppress) noise or interference generated in the process of receiving and sending audio signals.

[0069] The mobile terminal 100 also includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors. Optionally, the light sensor includes an ambient light sensor and a proximity sensor. Optionally, the ambient light sensor can adjust the brightness of the display panel 1061 according to the brightness of the ambient light, and the proximity sensor can turn off the display panel 1061 and / or the backlight when the mobile terminal 100 is moved to the ear. As a type of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in all directions (generally three axes), and can detect the magnitude and direction of gravity when stationary. It can be used for applications that identify the posture of the mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, tapping), etc.; as for other sensors that can be configured on the mobile phone, such as fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., they will not be repeated here.

[0070] The display unit 106 is used to display information input by the user or information provided to the user. The display unit 106 may include a display panel 1061, which may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.

[0071] The user input unit 107 can be used to receive input digital or character information, and to generate key signal input related to the user settings and function control of the mobile terminal. Optionally, the user input unit 107 may include a touch panel 1071 and other input devices 1072. The touch panel 1071, also known as a touch screen, can collect the user's touch operation on or near it (such as the user's operation on the touch panel 1071 or near the touch panel 1071 using any suitable object or accessory such as a finger, stylus, etc.), and drive the corresponding connection device according to a pre-set program. The touch panel 1071 may include two parts: a touch detection device and a touch controller. Optionally, the touch detection device detects the user's touch orientation, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into the touch point coordinates, and then sends it to the processor 110, and can receive and execute the command sent by the processor 110. And / or, the touch panel 1071 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch panel 1071, the user input unit 107 may further include other input devices 1072. Optionally, the other input devices 1072 may include, but are not limited to, one or more of a physical keyboard, a function key (such as a volume control key, a switch key, etc.), a trackball, a mouse, a joystick, etc., which are not specifically limited here.

[0072] Optionally, the touch panel 1071 may cover the display panel 1061. When the touch panel 1071 detects a touch operation on or near it, it transmits the information to the processor 110 to determine the type of touch event. Then, the processor 110 provides corresponding visual output on the display panel 1061 according to the type of touch event. Figure 1 In the figure, the touch panel 1071 and the display panel 1061 are used as two independent components to implement the input and output functions of the mobile terminal. However, in some embodiments, the touch panel 1071 and the display panel 1061 can be integrated to implement the input and output functions of the mobile terminal, which is not limited here.

[0073] The interface unit 108 serves as an interface through which at least one external device can be connected to the mobile terminal 100. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, an audio input / output (I / O) port, a video I / O port, a headphone port, etc. The interface unit 108 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the mobile terminal 100 or may be used to transmit data between the mobile terminal 100 and an external device.

[0074] The memory 109 can be used to store software programs and various data. The memory 109 can mainly include a program storage area and a data storage area. Optionally, the program storage area can store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.), etc.; the data storage area can store data created according to the use of the mobile phone (such as audio data, a phone book, etc.), etc. And / or, the memory 109 can include a high-speed random access memory, and can also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0075] The processor 110 is the control center of the mobile terminal. It uses various interfaces and lines to connect various parts of the entire mobile terminal. It executes various functions of the mobile terminal and processes data by running or executing software programs and / or modules stored in the memory 109, and calling data stored in the memory 109, so as to monitor the mobile terminal as a whole. The processor 110 may include one or more processing units; preferably, the processor 110 may integrate an application processor and a modem processor. Optionally, the application processor mainly processes the operating system, user interface, and application programs, and the modem processor mainly processes wireless communications. It is understandable that the above-mentioned modem processor may not be integrated into the processor 110.

[0076] The mobile terminal 100 may also include a power supply 111 (such as a battery) for supplying power to various components. Preferably, the power supply 111 may be logically connected to the processor 110 via a power management system, thereby implementing functions such as charging, discharging, and power consumption management through the power management system.

[0077] although Figure 1 Not shown, the mobile terminal 100 may further include a Bluetooth module, etc., which will not be described in detail here.

[0078] In order to facilitate understanding of the embodiments of the present application, the communication network system on which the mobile terminal of the present application is based is described below.

[0079] See also Figure 2 , Figure 2A communication network system architecture diagram is provided for an embodiment of the present application. The communication network system is a NR (New Radio) system of universal mobile communication technology. The NR system includes a UE (User Equipment) 201, an E-UTRAN (Evolved UMTS Terrestrial Radio Access Network) 202, an EPC (Evolved Packet Core) 203 and an operator's IP service 204, which are connected in sequence.

[0080] Optionally, UE201 may be the above-mentioned terminal device 100, which will not be described in detail here.

[0081] E-UTRAN 202 includes eNodeB 2021 and other eNodeBs 2022 , etc. Optionally, eNodeB 2021 may be connected to other eNodeBs 2022 via a backhaul (eg, an X2 interface), and eNodeB 2021 is connected to EPC 203 , and eNodeB 2021 may provide UE 201 with access to EPC 203 .

[0082] EPC203 may include MME (Mobility Management Entity) 2031, HSS (Home Subsber Server) 2032, other MMEs 2033, SGW (Serving Gate Way) 2034, PGW (PDN Gate Way) 2035 and PCRF (Policy and Charging Rules Function) 2036, etc. Optionally, MME2031 is a control node that processes signaling between UE201 and EPC203, and provides bearer and connection management. HSS2032 is used to provide some registers to manage functions such as home location register (not shown in the figure), and save some user-specific information such as service features and data rates. All user data can be sent through SGW2034, PGW2035 can provide IP address allocation and other functions for UE 201, PCRF2036 is the policy and charging control policy decision point for service data flow and IP bearer resources, which selects and provides available policy and charging control decisions for the policy and charging execution function unit (not shown in the figure).

[0083] The IP service 204 may include the Internet, an intranet, an IMS (IP Multimedia Subsystem) or other IP services.

[0084] Although the above introduction takes the LTE system as an example, those skilled in the art should know that the present application is not only applicable to the LTE system, but also to other wireless communication systems, such as GSM, CDMA2000, WCDMA, TD-SCDMA, 5G and future new network systems (such as 6G), etc., without limitation here.

[0085] Figure 3 The hardware structure diagram of a controller 140 provided in the present application is shown in FIG. The controller 140 includes a memory 1401 and a processor 1402. The memory 1401 is used to store program instructions, and the processor 1402 is used to call the program instructions in the memory 1401 to execute the steps executed by the controller in the first embodiment of the above method. The implementation principle and beneficial effects are similar and will not be described in detail here.

[0086] Optionally, the controller further includes a communication interface 1403, which can be connected to the processor 1402 via a bus 1404. The processor 1402 can control the communication interface 1403 to implement the receiving and sending functions of the controller 140.

[0087] Figure 4 The hardware structure diagram of a network node 150 provided in the present application is shown in FIG. The network node 150 includes: a memory 1501 and a processor 1502, the memory 1501 is used to store program instructions, and the processor 1502 is used to call the program instructions in the memory 1501 to execute the steps performed by the first node in the first embodiment of the above method, and its implementation principle and beneficial effects are similar, which will not be repeated here.

[0088] Optionally, the controller further includes a communication interface 1503, which can be connected to the processor 1502 via a bus 1504. The processor 1502 can control the communication interface 1503 to implement the receiving and sending functions of the network node 150.

[0089] The above-mentioned integrated module implemented in the form of a software function module can be stored in a computer-readable storage medium. The above-mentioned software function module is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor (English: processor) to perform some steps of the methods of various embodiments of the present application.

[0090] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loading and executing computer program instructions on a computer, the process or function according to the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. Computer instructions can be stored in a storage medium, or transmitted from one storage medium to another storage medium. For example, computer instructions can be transmitted from a website site, computer, server or data center to another website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode. The storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integration. Available media can be magnetic media, (e.g., floppy disk, hard disk, tape), optical media (e.g., DVD), or semiconductor media (e.g., solid state hard disk solid state disk, SSD), etc.

[0091] Based on the above-mentioned mobile terminal hardware structure and communication network system, various embodiments of the present application are proposed.

[0092] Technical terms involved in the embodiments of this application:

[0093] BM: Beam Management, beam management;

[0094] MAC CE: Media Access Control Control Element, media access control element;

[0095] RRC: Radio Resource Control, radio resource control;

[0096] RACH-less: random access-free;

[0097] LTM: L1 / L2 Triggered Mobility, layer one layer two triggered mobility;

[0098] CLTM: Conditional L1 / L2 Triggered Mobility, conditional layer one layer two triggered mobility;

[0099] TA: Timing Advance, time advance;

[0100] TAT: Timing Advance Timer, time advance timer;

[0101] TCI: Transmission Configuration Indicator, sending configuration indication;

[0102] PDCCH: Physical Downlink Control CHannel, physical downlink control channel.

[0103] First embodiment

[0104] Reference Figure 5 , Figure 5 The flowchart of the processing method according to the first embodiment is shown. The processing method of the embodiment of the present application can be applied to a terminal device (such as a mobile phone), and includes the following steps:

[0105] S2: In response to receiving a timing advance value of at least one candidate cell, start or restart a timing advance timer.

[0106] Optionally, when conditional LTM switching supports random access-free, the execution conditions can be evaluated through the MAC layer and / or RRC layer. When the candidate cell meets the execution conditions, the conditional LTM switching can be triggered. Therefore, it is necessary to obtain the candidate cell time advance value in advance. However, there is currently no clear way to manage and / or maintain the candidate cell time advance value obtained in advance.

[0107] Optionally, the terminal device starts or restarts the timing advance timer in response to receiving the timing advance value of at least one candidate cell.

[0108] Optionally, the terminal device starts or restarts a valid time advance timer in response to receiving a time advance value of at least one candidate cell.

[0109] Optionally, the timing advance value of at least one candidate cell is carried in the medium access control element.

[0110] Optionally, the at least one candidate cell includes all conditional LTM candidate cells.

[0111] Optionally, at least one candidate cell timing advance value is not a maximum value, for example: FFF.

[0112] Optionally, F is in hexadecimal and can be represented by 4 binary bits, for example: 1111.

[0113] Optionally, FFF is represented by 12 binary bits.

[0114] Optionally, the timing advance timer or the effective timing advance timer is used for at least one candidate cell.

[0115] Optionally, the timing advance timer or the effective timing advance timer is used to determine whether to apply the timing advance value of at least one candidate cell during the conditional LTM cell switching process.

[0116] Optionally, the terminal device sends a random access preamble to at least one candidate cell based on a physical downlink control channel command.

[0117] Optionally, when at least one candidate cell satisfies the conditional LTM execution condition, conditional LTM cell switching is triggered.

[0118] Optionally, when the conditional LTM execution condition is met, the radio resource control layer sends a conditional LTM cell switching request and / or a candidate cell identifier to the media access control layer.

[0119] Optionally, the conditional LTM cell handover request and / or the candidate cell identifier is used to trigger the media access control layer to apply a timing advance value of at least one candidate cell.

[0120] Through the technical solution of this embodiment, specifically by starting or restarting the time advance timer or the effective time advance timer in response to receiving the time advance value of at least one candidate cell, the time advance processing mechanism is improved, thereby supporting random access condition-free LTM switching.

[0121] Second embodiment

[0122] Reference Figure 6 , Figure 6 This is an interaction timing diagram according to the second embodiment. Based on the first embodiment of the present application, this embodiment further discloses a process for configuring a valid time advance timer of a terminal device.

[0123] Optionally, after the terminal device reports the measurement report to the network device (eg, the source cell and / or the source base station), the network device sends a radio resource control reconfiguration signaling including conditional LTM configuration information to the terminal device.

[0124] Optionally, the measurement report reported by the terminal device is a layer 3 measurement report.

[0125] Optionally, the source cell obtains conditional LTM candidate cell configuration.

[0126] Optionally, the conditional LTM candidate cell configuration includes conditional LTM configuration and / or conditional LTM execution condition.

[0127] Optionally, the conditional LTM candidate cell is an Intra-CU cell.

[0128] Optionally, the source cell and / or source base station generates a conditional LTM configuration.

[0129] Optionally, the conditional LTM configuration includes at least one of a conditional LTM configuration identifier, a candidate cell conditional LTM configuration, and a candidate cell conditional LTM execution condition.

[0130] Optionally, the candidate cell condition LTM execution condition includes a layer 1 measurement configuration and / or at least one layer 3 measurement configuration.

[0131] Optionally, the LTM measurement event is a layer 1 (L1, Layer 1) measurement event.

[0132] Optionally, the layer 1 measurement event includes at least one of the following:

[0133] Event LTM2: Beam of serving cell becomes worse than absolute threshold;

[0134] Event LTM3: The beam of candidate cell becomes amount of offset better than beam of serving cell after compensation.

[0135] Event LTM4: Beam of candidate cell becomes better than absolute threshold;

[0136] Event LTM5: Beam of serving cell becomes worse than absolute threshold1 AND Beam of candidate cell becomes better than another absolute threshold2.

[0137] Optionally, the layer 1 measurement event may be a beam management (BM) measurement event.

[0138] Optionally, the layer 1 measurement event may be a layer 1-2 mobility measurement event.

[0139] Optionally, the conditional LTM configuration of the candidate cell includes at least one of the following: LTM candidate identity, LTM candidate configuration, conditional LTM candidate configuration, early uplink synchronization configuration, no reset identity (No reset identity), no reset identity of the serving cell, attempt LTM-Switch (attemptLTM-Switch), for details, please refer to protocol TS 38.300v14, 6.3.2LTM configuration.

[0140] Optionally, the candidate cell condition LTM configuration includes serving cell LTM configuration and / or candidate cell LTM configuration.

[0141] Optionally, the candidate cell conditional LTM configuration includes at least one of a conditional LTM candidate identifier, a conditional LTM execution condition identifier, a layer one measurement event identifier, and a valid time advance timer.

[0142] Optionally, the network device sends radio resource control reconfiguration signaling to the terminal device.

[0143] Optionally, the radio resource control reconfiguration signaling carries conditional LTM configuration.

[0144] Optionally, the terminal device stores conditional LTM configurations and / or sets conditional LTM execution conditions.

[0145] Optionally, the terminal device sends a radio resource control reconfiguration completion signaling to the network device.

[0146] Optionally, the radio resource control reconfiguration completion signaling is used to respond to the radio resource control reconfiguration signaling sent by the network device.

[0147] Optionally, the terminal device evaluates candidate cells based on a conditional LTM configuration.

[0148] Optionally, the terminal device evaluates whether there is a candidate cell that meets the execution condition based on the candidate cell condition LTM execution condition.

[0149] Optionally, the terminal device performs early downlink synchronization and / or early uplink synchronization.

[0150] Optionally, the network device determines the candidate cell for early downlink synchronization by activating / deactivating MAC CE of the candidate cell TCI status.

[0151] Optionally, the network device carries a timing advance value and / or an LTM candidate identifier of at least one candidate cell through a MAC CE in the early uplink synchronization phase.

[0152] Optionally, the network device triggers early uplink synchronization with the candidate cell through a physical downlink control channel order (PDCCH order).

[0153] Optionally, the network device determines a candidate cell for performing early uplink synchronization and / or early downlink synchronization through a layer 1 measurement result reported by the terminal device.

[0154] Optionally, the reported layer 1 measurement result is reported in at least one of the following reporting modes: periodic reporting, non-periodic reporting, and semi-static reporting.

[0155] Optionally, the network device carries a timing advance value and / or an LTM candidate identifier of at least one candidate cell through a MAC CE.

[0156] Optionally, after receiving at least one candidate cell time advance value, the terminal device starts or restarts a valid time advance timer, for example: ValidtimeAlignmentTimer.

[0157] Optionally, the valid time advance timer is used to determine whether the candidate cell time advance is still valid.

[0158] Optionally, the effective time advance timer is used for at least one candidate cell.

[0159] Optionally, the effective time advance timer may be a time advance timer.

[0160] Optionally, if the timing advance information of at least one candidate cell is not a maximum value (FFF), the effective timing advance timer is started or restarted.

[0161] Optionally, the effective time advance timer duration is less than the time advance timer duration.

[0162] Optionally, the duration of the time advance timer may refer to protocol TS 38.331v18, 6.3.2.

[0163] Optionally, the valid time advance timer is used for different candidate cells, for example: the terminal device receives the time advance value of at least one candidate cell, and if it is determined according to the time advance value that no valid time advance timer is in operation, the valid time advance timer is started or restarted.

[0164] Optionally, the MAC CE carries the timing advance values ​​of all candidate cells.

[0165] Optionally, the time advance value of the candidate cell that does not perform early uplink synchronization is FFF.

[0166] Optionally, when the valid time advance timer times out, the time advance information is released.

[0167] Optionally, when the valid time advance timer times out, the time advance information of all candidate cells is released.

[0168] Optionally, when the valid time advance timer times out, the time advance information is retained or maintained.

[0169] Optionally, when the valid time advance timer times out, the time advance information of all candidate cells is retained or maintained.

[0170] Through the technical solution of this embodiment, the conditional LTM configuration information sent by the network device is received by the terminal device, and the time advance value of at least one candidate cell is managed or maintained according to the effective time advance timer in the conditional LTM configuration information, thereby improving the time advance processing mechanism and supporting random access-free conditional LTM switching.

[0171] Third embodiment

[0172] Based on any of the foregoing embodiments of the present application, this embodiment further discloses a process for a terminal device to perform conditional LTM cell switching.

[0173] Optionally, the terminal device reports a layer 1 measurement report to the network device.

[0174] Optionally, when at least one candidate cell satisfies a layer 1 measurement event and / or an LTM measurement event, the terminal device reports a layer 1 measurement report.

[0175] Optionally, the layer 1 measurement report is sent via MAC CE.

[0176] Optionally, the layer one measurement report carries at least one layer one measurement result.

[0177] Optionally, the layer one measurement result is at least one of a periodic measurement result, an aperiodic measurement result, and a semi-persistent measurement result.

[0178] Optionally, the network device triggers early downlink synchronization.

[0179] Optionally, the network device determines the candidate cell for early downlink synchronization by activating or deactivating MAC CE by the candidate cell TCI status.

[0180] Optionally, the network device responds to the measurement report reported by the terminal device under the condition that the conditional LTM execution condition is met, and performs early uplink synchronization and / or early downlink synchronization.

[0181] Optionally, the measurement report includes a layer 1 measurement report and / or a layer 3 measurement report.

[0182] Optionally, the network device triggers early uplink synchronization with the candidate cell through a PDCCH order.

[0183] Optionally, the terminal device sends a random access preamble to the candidate cell according to the received PDCCH order.

[0184] Optionally, the source cell sends candidate cell time advance information to the terminal device.

[0185] Optionally, the terminal device detaches from the source cell and applies the target cell configuration and / or conditional LTM configuration.

[0186] Optionally, when at least one candidate cell satisfies the candidate cell condition LTM execution condition, separation is performed and synchronization is performed with the target cell.

[0187] Optionally, when at least one candidate cell satisfies a candidate cell conditional LTM execution condition, a conditional LTM cell switching is triggered.

[0188] Optionally, at least one candidate cell satisfies a candidate cell condition LTM execution condition, including: satisfying a layer 1 measurement event and / or satisfying a layer 3 measurement event.

[0189] Optionally, the terminal device initiates a random access process.

[0190] Optionally, when the terminal device does not have a target cell time advance value and / or the target cell time advance value is the maximum value FFF, and there is no time advance value measured by the terminal device, a random access process is initiated.

[0191] Optionally, the terminal device completes conditional LTM cell switching.

[0192] Optionally, the terminal device sends a wireless resource control reconfiguration completion signaling according to configuration scheduling and / or dynamic scheduling.

[0193] Optionally, the terminal device sends a radio resource control reconfiguration completion signaling to the target cell.

[0194] Optionally, when the terminal device performs random access-free conditional LTM switching and receives the first downlink data scheduling and / or uplink data scheduling, the conditional LTM switching is deemed to be completed.

[0195] Optionally, the terminal device does not stop the time advance timer and / or the valid time advance timer after completing the conditional LTM cell switching.

[0196] Optionally, the terminal device completes the conditional LTM cell switch without deleting or releasing the timing advance value of the candidate cell.

[0197] Through the technical solution of this embodiment, the time advance value of at least one candidate cell is managed or maintained through a time advance timer during the execution of conditional LTM cell switching, thereby improving the time advance processing mechanism and supporting random access-free conditional LTM switching.

[0198] Fourth embodiment

[0199] On the basis of any of the foregoing embodiments of the present application, this embodiment further discloses a solution in which a terminal device manages or maintains a timing advance value of at least one candidate cell through a timing advance timer.

[0200] Optionally, the terminal device includes a media access control layer and a radio resource control layer.

[0201] Optionally, the radio resource control layer is located above the media access control layer, and details may refer to protocol TS38.300v18, 4.4.2.

[0202] Optionally, the media access control layer evaluates layer one measurement results.

[0203] Optionally, the medium access control layer evaluates layer one measurements and / or layer one measurement events.

[0204] Optionally, the MAC layer evaluates layer 1 measurements and / or layer 1 measurement events based on physical layer and / or layer 1 measurement results.

[0205] Optionally, the MAC layer sends indication information to an upper layer.

[0206] Optionally, the indication information is used to indicate at least one of the following: candidate cell information satisfying a layer 1 measurement event, candidate cell information satisfying a conditional LTM switching execution condition, and candidate cell information satisfying a conditional LTM switching.

[0207] Optionally, the upper layer includes a radio resource control layer.

[0208] Optionally, when at least one layer 1 measurement satisfies a layer 1 measurement event, a layer 1 measurement indication is sent.

[0209] Optionally, the indication information includes at least one of a layer one measurement event identifier, a conditional LTM execution condition identifier, an LTM candidate identifier, and a conditional LTM candidate identifier.

[0210] Optionally, the radio resource control layer performs conditional layer 1-2 mobility assessment.

[0211] Optionally, the radio resource control layer performs conditional layer 1-2 mobility assessment according to the reported indication information.

[0212] Optionally, the radio resource control layer determines a candidate cell that satisfies the layer 1 measurement event according to the reported indication information.

[0213] Optionally, the radio resource control layer determines the candidate cell that satisfies the layer 1 measurement event according to at least one of the following: a layer 1 measurement event identifier, an identifier that satisfies the conditional LTM execution condition, an LTM candidate identifier, and a conditional LTM candidate identifier.

[0214] Optionally, when the layer 1-2 mobility candidate cell satisfies the layer 1 measurement event and / or the layer 3 measurement event, conditional layer 1-2 mobility cell switching is performed, for example:

[0215] When the layer 1-2 mobility candidate cell satisfies the layer 1 measurement event, conditional layer 1-2 mobility cell switching is performed; or,

[0216] When the layer 12 mobility candidate cell satisfies the layer 3 measurement event, conditional layer 12 mobility cell switching is performed; or,

[0217] When all layer 1-2 mobility candidate cells satisfy the layer 1 measurement event and the layer 3 measurement event, conditional layer 1-2 mobility cell switching is performed.

[0218] Optionally, satisfying the layer 3 measurement event includes: satisfying one of the layer 1 measurement events, and / or satisfying both of the layer 3 measurement events.

[0219] Optionally, when at least one layer 1-2 mobility candidate cell satisfies a layer 1 measurement event and / or a layer 3 measurement event, conditional layer 1-2 mobility cell switching is performed.

[0220] Optionally, the terminal device autonomously determines a candidate cell for performing conditional layer 1-2 mobility cell switching.

[0221] Optionally, the radio resource control layer sends a conditional layer 1-2 mobility cell switching request to the media access control layer and / or lower layers.

[0222] Optionally, the radio resource control layer determines a candidate cell for performing conditional layer 1-2 mobility cell switching, and sends a conditional layer 1-2 mobility cell switching request to the media access control layer.

[0223] Optionally, the conditional layer 1-2 mobility cell switching request carries conditional layer 1-2 mobility cell switching information.

[0224] Optionally, the conditional layer 1-2 mobility cell switching information includes a layer 1-2 mobility candidate cell identifier and / or a layer 1-2 mobility candidate cell physical cell identifier.

[0225] Optionally, the media access control layer receives a conditional layer 1-2 mobility cell switching request.

[0226] Optionally, the media access control layer applies a timing advance value of at least one candidate cell according to the conditional layer 1-2 mobility cell switching request.

[0227] Optionally, the media access control layer applies the time advance value of at least one candidate cell based on the conditional layer 1-2 mobility cell switching information, for example: the media access control layer determines the time advance value of at least one candidate cell based on the layer 1-2 mobility candidate cell identifier and / or the layer 1-2 mobility candidate cell physical cell identifier, and applies the time advance value of at least one candidate cell.

[0228] Optionally, the media access control layer applies the time advance value based on the valid time advance timer, for example: when the valid time advance timer is in a running state, the time advance value is applied; and / or, when the valid time advance timer is not in a running state, a random access process is initiated.

[0229] Optionally, the terminal device determines at least one candidate cell as a target cell, and applies a timing advance value of the target cell.

[0230] Optionally, when the terminal device applies the time advance value of the target cell, it is regarded as random access condition-free LTM cell switching being executed, and / or the time advance timer is set to a valid time advance timer.

[0231] Optionally, when the terminal device applies the time advance value of the target cell, it is deemed that the random access condition-free LTM cell switching is being executed, and / or the time advance timer is set to a valid time advance timer, and the time advance timer is started.

[0232] Optionally, when the terminal device applies the time advance value of the target cell, it is deemed that the random access condition-free LTM cell switching is being executed, and / or the time advance timer is started.

[0233] Optionally, when the terminal device performs LTM cell switching without random access conditions, it instructs the bottom layer (eg, the physical layer control layer) to skip the random access process.

[0234] Optionally, when the terminal device applies the time advance value of the target cell, stops the effective time advance timer, and / or instructs the underlying layer (eg, the physical layer) to waive the random access procedure.

[0235] Optionally, the media access control layer determines the application time advance value according to the time advance timer, for example, when the time advance timer is in a running state, the time advance value is applied.

[0236] Optionally, the media access control layer applies the time advance value based on the conditional layer 1-2 mobility cell switching information, and / or the media access control layer applies the time advance value based on the time advance timer and / or the effective time advance timer. For example, the media access control layer determines the candidate cell based on the layer 1-2 mobility candidate cell identifier and / or the layer 1-2 mobility candidate cell physical cell identifier, and the effective time advance timer of the candidate cell is in running state, then the time advance value of at least one candidate cell is applied.

[0237] Optionally, the media access control layer determines whether to apply the time advance value based on the time advance timer, for example: when the time advance timer is in a running state, the time advance value is applied; when the time advance timer is not in a running state, a random access process is initiated.

[0238] Through the technical solution of this embodiment, the time advance value of at least one candidate cell is managed or maintained through a time advance timer, thereby improving the time advance processing mechanism and supporting random access condition-free LTM switching.

[0239] Fifth embodiment

[0240] Reference Figure 7 , Figure 7 FIG. 5 is a flow chart of a processing method according to a fifth embodiment. The method of this embodiment can be applied to a network device (such as a base station), and includes the following steps:

[0241] S1: Sending a timing advance value of at least one candidate cell so that a terminal device receives the timing advance value of at least one candidate cell and starts or restarts a timing advance timer.

[0242] Optionally, the network device sends a timing advance value of at least one candidate cell to the terminal device.

[0243] Optionally, the terminal device starts or restarts the timing advance timer in response to receiving the timing advance value of at least one candidate cell.

[0244] Optionally, the timing advance value of at least one candidate cell is carried in the medium access control element.

[0245] Optionally, the at least one candidate cell includes all candidate cells.

[0246] Optionally, at least one candidate cell timing advance value is not a maximum value, for example: FFF.

[0247] Optionally, F is in hexadecimal and can be represented by 4 binary bits, for example: 1111.

[0248] Optionally, FFF is represented by 12 binary bits.

[0249] Optionally, the time advance timer is a valid time advance timer.

[0250] Optionally, the time advance timer is used for at least one candidate cell.

[0251] Optionally, the timing advance timer is used to determine whether to apply the timing advance value of at least one candidate cell during the conditional LTM cell switching process.

[0252] Optionally, the terminal device sends a random access preamble to at least one candidate cell based on a physical downlink control channel command.

[0253] Optionally, when at least one candidate cell satisfies the conditional LTM execution condition, conditional LTM cell switching is triggered.

[0254] Optionally, when the conditional LTM execution condition is met, the radio resource control layer sends a conditional LTM cell switching request and / or a candidate cell identifier to the media access control layer.

[0255] Optionally, the conditional LTM cell handover request and / or the candidate cell identifier is used to trigger the media access control layer to apply a timing advance value of at least one candidate cell.

[0256] Through the technical solution of this embodiment, the time advance value of at least one candidate cell is sent to the terminal device through the network device, so that the terminal device starts or restarts the time advance timer in response to receiving the time advance value of at least one candidate cell, thereby improving the time advance processing mechanism and supporting LTM switching without random access conditions.

[0257] Sixth embodiment

[0258] Reference Figure 8 , Figure 8 A schematic diagram of the structure of the processing device provided in the embodiment of the present application Figure 1 , the device may be mounted on or is the terminal device in the above method embodiment, Figure 8 The processing device shown can be used to perform part or all of the functions of the method embodiments described in the above embodiments, such as Figure 8 As shown, the processing device 1100 includes:

[0259] The processing module 1101 is configured to start or restart a timing advance timer in response to receiving a timing advance value of at least one candidate cell.

[0260] Optionally, the device further comprises at least one of the following:

[0261] The timing advance value of at least one candidate cell is carried in the medium access control element;

[0262] The at least one candidate cell includes all candidate cells;

[0263] At least one candidate cell timing advance value is not a maximum value;

[0264] The time advance timer includes a valid time advance timer.

[0265] Optionally, the device further comprises at least one of the following:

[0266] Sending a random access preamble to at least one candidate cell based on a physical downlink control channel command;

[0267] In response to at least one candidate cell satisfying a conditional LTM execution condition, triggering a conditional LTM cell handover;

[0268] In response to satisfying the conditional LTM execution condition, the radio resource control layer sends a conditional LTM cell handover request and / or a candidate cell identifier to the media access control layer.

[0269] Optionally, the device further comprises at least one of the following:

[0270] The timing advance timer is used to determine whether to apply the timing advance value of at least one candidate cell during the conditional LTM cell handover process;

[0271] The conditional LTM cell handover request and / or the candidate cell identifier is used to trigger the media access control layer to apply the timing advance value of at least one candidate cell;

[0272] The timing advance timer is used for at least one candidate cell.

[0273] The processing device provided in the embodiment of the present application has similar implementation principles and beneficial effects to the technical solutions shown in the above-mentioned corresponding method embodiments, and will not be described in detail here.

[0274] Seventh embodiment

[0275] Reference Fig. 9 , Fig. 9 A schematic diagram of the structure of the processing device provided in the embodiment of the present application Figure 2 The device may be mounted on or be the network device in the above method embodiment. Fig. 9 The processing device shown can be used to perform part or all of the functions of the method embodiments described in the above embodiments, such as Fig. 9 As shown, the processing device 1200 includes:

[0276] The sending module 1201 is used to send the timing advance value of at least one candidate cell, so that the terminal device receives the timing advance value of at least one candidate cell and starts or restarts the timing advance timer.

[0277] Optionally, the device further comprises at least one of the following:

[0278] The timing advance value of at least one candidate cell is carried in the medium access control element;

[0279] The at least one candidate cell includes all candidate cells;

[0280] The timing advance value of at least one candidate cell is not the maximum value;

[0281] The time advance timer includes a valid time advance timer.

[0282] Optionally, the device further comprises at least one of the following:

[0283] The terminal device sends a random access preamble to at least one candidate cell based on a physical downlink control channel command;

[0284] The terminal device triggers a conditional LTM cell handover in response to at least one candidate cell satisfying a conditional LTM execution condition;

[0285] In response to the terminal device satisfying the conditional LTM execution condition, the radio resource control layer sends a conditional LTM cell switching request and / or a candidate cell identifier to the media access control layer.

[0286] Optionally, the device further comprises at least one of the following:

[0287] The timing advance timer is used to determine whether to apply the timing advance value of at least one candidate cell during the conditional LTM cell handover process;

[0288] The conditional LTM cell handover request and / or the candidate cell identifier is used to trigger the media access control layer to apply the timing advance value of at least one candidate cell;

[0289] The timing advance timer is used for at least one candidate cell.

[0290] The processing device provided in the embodiment of the present application has similar implementation principles and beneficial effects to the technical solutions shown in the above-mentioned corresponding method embodiments, and will not be described in detail here.

[0291] See also Fig.10 , Fig.10 This is a schematic diagram of the structure of the communication device provided in the embodiment of the present application. Fig.10 As shown, the communication device 160 described in this embodiment can be the terminal device (or a component that can be used for the terminal device) or the network device (or a component that can be used for the network device) mentioned in the above method embodiment. The communication device 160 can be used to implement the method corresponding to the terminal device or the network device described in the above method embodiment, and specifically refer to the description in the above method embodiment.

[0292] The communication device 160 may include one or more processors 161, which may also be referred to as a processing unit, and may implement certain control or processing functions. The processor 161 may be a general-purpose processor or a dedicated processor, etc. For example, it may be a baseband processor or a central processing unit. The baseband processor may be used to process the communication protocol and communication data, and the central processing unit may be used to control the communication device, execute the software program, and process the data of the software program.

[0293] Optionally, the processor 161 may also store instructions 163 or data (eg, intermediate data). Optionally, the instructions 163 may be executed by the processor 161, so that the communication device 160 executes the method corresponding to the terminal device or network device described in the above method embodiment.

[0294] Optionally, the communication device 160 may include a circuit, which can implement the functions of sending or receiving or communicating in the aforementioned method embodiments.

[0295] Optionally, the communication device 160 may include one or more memories 162, on which instructions 164 may be stored. The instructions may be executed on the processor 161, so that the communication device 160 executes the method described in the above method embodiment.

[0296] Optionally, data may also be stored in the memory 162. The processor 161 and the memory 162 may be provided separately or integrated together.

[0297] Optionally, the communication device 160 may further include a transceiver 165 and / or an antenna 166. The processor 161 may be referred to as a processing unit, and controls the communication device 160 (terminal device or core network device or wireless access network device). The transceiver 165 may be referred to as a transceiver unit, a transceiver, a transceiver circuit, or a transceiver, etc., and is used to implement the transceiver function of the communication device 160.

[0298] Optionally, if the communication device 160 is used to implement operations corresponding to the terminal device in the above embodiments, for example, the transceiver 165 and / or the processor 161 can start or restart the time advance timer in response to receiving a time advance value of at least one candidate cell.

[0299] Optionally, the specific implementation process of the processor 161 and the transceiver 165 can refer to the relevant description of the above embodiments, which will not be repeated here.

[0300] Optionally, if the communication device 160 is used to implement operations corresponding to the network devices in the above embodiments, for example: the transceiver 165 can send the time advance value of at least one candidate cell so that the terminal device receives the time advance value of at least one candidate cell and starts or restarts the time advance timer.

[0301] Optionally, the specific implementation process of the processor 161 and the transceiver 165 can refer to the relevant description of the above embodiments, which will not be repeated here.

[0302] The processor 161 and the transceiver 165 described in the present application can be implemented in an IC (Integrated Circuit), an analog integrated circuit, an RFIC (Radio Frequency Integrated Circuit), a mixed signal integrated circuit, an ASIC (Application Specific Integrated Circuit), a PCB (Printed Circuit Board), an electronic device, etc. The processor 161 and the transceiver 165 can also be manufactured using various integrated circuit process technologies, such as CMOS (Complementary Metal Oxide Semiconductor), NMOS (N Metal-Oxide-Semiconductor), PMOS (Positive channel Metal Oxide Semiconductor), BJT (Bipolar Junction Transistor), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc. In the present application, the communication device can be a terminal device (such as a mobile phone) or a network device (such as a base station), which needs to be determined according to the context. In addition, the terminal device can be implemented in various forms. For example, the terminal devices described in this application may include mobile terminals such as mobile phones, tablet computers, laptops, PDAs, portable media players (PMPs), navigation devices, wearable devices, smart bracelets, pedometers, etc., as well as fixed terminal devices such as digital TVs and desktop computers.

[0303] Although in the above embodiments, the communication device is described by taking a terminal device or a network device as an example, the scope of the communication device described in the present application is not limited to the above terminal device or network device, and the structure of the communication device may not be limited to the above terminal device or network device. Fig.10 The communication device may be a stand-alone device or may be part of a larger device.

[0304] An embodiment of the present application also provides a communication system, including: a terminal device as in any of the above embodiments; and a network device as in any of the above embodiments.

[0305] An embodiment of the present application also provides a communication device, including a memory and a processor, wherein a processing program is stored in the memory, and when the processing program is executed by the processor, the steps of the processing method in any of the above embodiments are implemented.

[0306] The communication device in this application can be a terminal device (such as a mobile phone), a network device (such as a base station), or a chip (such as a SOC or a baseband chip with communication functions, etc.). The specific reference needs to be clarified based on the context.

[0307] An embodiment of the present application further provides a computer-readable storage medium, on which a processing program is stored. When the processing program is executed by a processor, the steps of the processing method in any of the above embodiments are implemented.

[0308] In the embodiments of the communication device and computer-readable storage medium provided in the embodiments of the present application, all technical features of any of the above-mentioned processing method embodiments may be included, and the expansion and explanation content of the specification are basically the same as those of the embodiments of the above-mentioned methods, and will not be repeated here.

[0309] The present application also provides a computer program product, which includes a computer program code. When the computer program code is run on a computer, the computer executes the methods in the above various possible implementations. The present application also provides a chip, which includes a memory and a processor. The memory is used to store a computer program, and the processor is used to call and run the computer program from the memory, so that a device equipped with the chip executes the methods in the above various possible implementations.

[0310] It can be understood that the above scenarios are only examples and do not constitute a limitation on the application scenarios of the technical solutions provided in the embodiments of the present application. The technical solutions of the present application can also be applied to other scenarios. For example, it is known to those skilled in the art that with the evolution of the system architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems. The serial numbers of the embodiments of the present application are only for description and do not represent the advantages and disadvantages of the embodiments. The steps in the method of the embodiment of the present application can be adjusted, merged and deleted in sequence according to actual needs. The units in the device of the embodiment of the present application can be merged, divided and deleted according to actual needs. In the present application, for the same or similar terminology, technical solutions and / or application scenario descriptions, they are generally described in detail only when they appear for the first time. When they appear again later, for the sake of brevity, they are generally not repeated. When understanding the content of the technical solutions of the present application, for the same or similar terminology, technical solutions and / or application scenario descriptions that are not described in detail later, reference can be made to the relevant detailed descriptions before. In the present application, the descriptions of each embodiment have their own emphasis. For the parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments. The various technical features of the technical solution of the present application can be arbitrarily combined. In order to make the description concise, not all possible combinations of the various technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of the present application.

[0311] Through the description of the above implementation mode, it can be clearly understood by those skilled in the art that the above-mentioned embodiment method can be implemented by means of software plus the necessary general hardware platform, and of course it can also be implemented by hardware, but in many cases the former is a better implementation mode. Based on such an understanding, the technical solution of the present application is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product is stored in a storage medium (such as ROM / RAM, disk, CD) as above, including several instructions to enable a terminal device (which can be a mobile phone, computer, server, controlled terminal device, or network device, etc.) to execute the method of each embodiment of the present application. In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loading and executing computer program instructions on a computer, the process or function according to the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. Computer instructions can be stored in a storage medium, or transmitted from one storage medium to another storage medium. For example, computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line) or wireless (e.g., infrared, wireless, microwave, etc.) means. The storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more available media integrated. The available medium can be a magnetic medium (e.g., a floppy disk, a storage disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid state storage disk Solid State Disk (SSD)). The above are only preferred embodiments of the present application, and the scope of the patent of the present application is not limited thereto. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the scope of patent protection of the present application.

Claims

1. A processing method, characterized in that: Applied to terminal equipment, including the steps of: S2: In response to receiving a timing advance value of at least one candidate cell, start or restart a timing advance timer.

2. The method according to claim 1, characterized in that Also includes at least one of the following: The timing advance value of at least one candidate cell is carried in the medium access control element; The at least one candidate cell includes all candidate cells; At least one candidate cell timing advance value is not a maximum value; The time advance timer includes a valid time advance timer.

3. The method according to claim 1 or 2, characterized in that Also includes at least one of the following: Sending a random access preamble to at least one candidate cell based on a physical downlink control channel command; In response to at least one candidate cell satisfying a conditional LTM execution condition, triggering a conditional LTM cell handover; In response to satisfying the conditional LTM execution condition, the radio resource control layer sends a conditional LTM cell handover request and / or a candidate cell identifier to the media access control layer.

4. The method according to claim 3, characterized in that Also includes at least one of the following: The timing advance timer is used to determine whether to apply the timing advance value of at least one candidate cell during the conditional LTM cell handover process; The conditional LTM cell handover request and / or the candidate cell identifier is used to trigger the media access control layer to apply the timing advance value of at least one candidate cell; The timing advance timer is used for at least one candidate cell.

5. A processing method, characterized in that: Applied to network equipment, including the steps of: S1: Sending a timing advance value of at least one candidate cell so that a terminal device receives the timing advance value of at least one candidate cell and starts or restarts a timing advance timer.

6. The method according to claim 5, characterized in that Also includes at least one of the following: The timing advance value of at least one candidate cell is carried in the medium access control element; The at least one candidate cell includes all candidate cells; The timing advance value of at least one candidate cell is not the maximum value; The time advance timer includes a valid time advance timer.

7. The method according to claim 5 or 6, characterized in that Also includes at least one of the following: The terminal device sends a random access preamble to at least one candidate cell based on a physical downlink control channel command; the terminal device triggers a conditional LTM cell handover in response to at least one candidate cell satisfying a conditional LTM execution condition; In response to the terminal device satisfying the conditional LTM execution condition, the radio resource control layer sends a conditional LTM cell switching request and / or a candidate cell identifier to the media access control layer.

8. The method according to claim 7, characterized in that Also includes at least one of the following: The timing advance timer is used to determine whether to apply the timing advance value of at least one candidate cell during the conditional LTM cell handover process; The conditional LTM cell handover request and / or the candidate cell identifier is used to trigger the media access control layer to apply the timing advance value of at least one candidate cell; The timing advance timer is used for at least one candidate cell.

9. A communication device, characterized in that: include: A memory, a processor, and a processing program stored in the memory and executable on the processor, wherein the processing program is executed by the processor to implement the steps of the processing method according to any one of claims 1 to 8.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and the computer program is executed by a processor to implement the steps of the processing method according to any one of claims 1 to 8.

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