WO2025035647A1 - 处理方法、通信设备及存储介质 - Google Patents

处理方法、通信设备及存储介质 Download PDF

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Publication number
WO2025035647A1
WO2025035647A1 PCT/CN2023/134814 CN2023134814W WO2025035647A1 WO 2025035647 A1 WO2025035647 A1 WO 2025035647A1 CN 2023134814 W CN2023134814 W CN 2023134814W WO 2025035647 A1 WO2025035647 A1 WO 2025035647A1
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WO
WIPO (PCT)
Prior art keywords
ltm
conditional
cell
candidate
value
Prior art date
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PCT/CN2023/134814
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English (en)
French (fr)
Inventor
黄钧蔚
谢毅力
黄伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Transsion Holdings Co Ltd
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Shenzhen Transsion Holdings Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Shenzhen Transsion Holdings Co Ltd filed Critical Shenzhen Transsion Holdings Co Ltd
Priority to CN202380101450.7A priority Critical patent/CN121753404A/zh
Publication of WO2025035647A1 publication Critical patent/WO2025035647A1/zh
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters

Definitions

  • the present application relates to the field of communication technology, and in particular to a processing method, a communication device and a storage medium.
  • Conditional Handover is a switching method in which the candidate cell is separated from the original cell and then establishes a connection with the target cell after the execution conditions are met.
  • conditional switching and conditional LTM (L1/L2 Triggered Mobility) switching methods do not support random access-free, so the terminal device needs to perform random access when performing conditional switching, which may cause the service interruption time to be prolonged.
  • the main purpose of the present application is to provide a processing method, a communication device and a storage medium, aiming to provide a conditional switching and/or conditional LTM switching method that supports random access-free to avoid extended service interruption.
  • the present application provides a processing method, which can be applied to a terminal device (such as a mobile phone), comprising the steps of:
  • S2 In response to satisfying the first condition, performing random access-free conditional switching and/or conditional LTM switching.
  • the performing of random access-free conditional switching and/or conditional LTM switching includes:
  • satisfying the first condition includes at least one of the following:
  • the conditional handover configuration carries indication information that the TA value of the candidate cell is zero and/or indication information that the TA value of the candidate cell is the same as that of the serving cell;
  • the conditional LTM handover configuration carries indication information that the TA value of the candidate LTM cell is zero and/or indication information that the TA value of the candidate LTM cell is the same as that of the serving cell.
  • the method further comprises at least one of the following:
  • the feedback information is carried in the random access response and/or the LTM switching command
  • the feedback information includes a candidate cell TA value and/or a candidate LTM cell TA value
  • the downlink control information includes at least one of index information, random access configuration, and reference signal configuration;
  • the radio resource control reconfiguration signaling includes at least one of a serving cell TA value, a conditional switching configuration of at least one candidate cell, a conditional LTM switching configuration, a terminal equipment measured TA value identifier, and a compensation value.
  • the terminal device measured TA value identifier is used to trigger the terminal device to measure and/or calculate the measured TA value of the corresponding candidate cell.
  • the measured TA value is measured and/or calculated by the terminal device through the serving cell TA value and/or compensation value.
  • conditional handover configuration includes at least one of a conditional handover configuration index, an execution condition, a candidate cell configuration parameter, and a candidate cell TA value.
  • conditional LTM switching configuration includes at least one of a conditional LTM switching configuration index, an LTM execution condition, a candidate LTM cell configuration parameter, and a candidate LTM cell TA value.
  • the random access response carries at least one of a TA value of at least one candidate cell and/or candidate LTM cell, uplink scheduling, configuration scheduling information, and a radio temporary identification.
  • the LTM switching command carries at least one of a TA value, uplink scheduling, configuration scheduling information, and a radio temporary identification of at least one candidate LTM cell.
  • the index information includes a conditional switching configuration index and/or a conditional LTM switching configuration index.
  • the terminal device in response to the measurement condition being met, initiates terminal device measurement of a TA value for at least one candidate cell.
  • the method further comprises at least one of the following:
  • the system message of the corresponding candidate cell is obtained according to the candidate cell configuration parameters and/or the candidate LTM cell configuration parameters;
  • conditional LTM switching evaluation based on conditional LTM switching configuration
  • the measurement condition includes a TA value identifier of a terminal device measured in at least one candidate cell configuration, and/or a TA value identifier of a terminal device measured in at least one candidate cell configuration is the same as a TA value identifier of a terminal device measured in a current serving cell configuration;
  • the measured TA value is measured and/or calculated by the terminal device through the serving cell TA value and/or compensation value.
  • 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:
  • S1 Send the first content so that the terminal device performs random access-free conditional switching and/or conditional LTM switching based on the first content.
  • the first content includes at least one of the following:
  • the terminal device measured TA value identifier is used to trigger the terminal device to measure and/or calculate the measured TA value of the corresponding candidate cell.
  • the measured TA value is measured and/or calculated by the terminal device through the serving cell TA value and/or compensation value.
  • the method further comprises at least one of the following:
  • the conditional handover configuration includes indication information that the TA value of the candidate cell is zero;
  • the conditional handover configuration includes indication information that the TA value of the candidate cell is the same as that of the serving cell;
  • conditional LTM handover configuration includes an indication that the TA value of the candidate LTM cell is zero;
  • the conditional LTM handover configuration includes indication information that the TA value of the candidate LTM cell is the same as that of the serving cell.
  • the terminal device performs random access-free conditional switching and/or conditional LTM switching based on the first content, including:
  • the terminal device selects or determines a candidate cell that meets the second condition based on the first content
  • the terminal device sends a random access preamble and/or a reference signal to a candidate cell that meets the second condition, and the terminal device performs random access-free conditional switching and/or conditional LTM switching based on the feedback information corresponding to the random access preamble and/or reference signal provided by the serving cell; and/or the terminal device measures and/or calculates the measured TA value of the candidate cell that meets the second condition, and performs random access-free conditional switching and/or conditional LTM switching based on the measured TA value.
  • the method further comprises at least one of the following:
  • the second condition includes a conditional switch execution condition and/or a conditional LTM switch execution condition
  • the feedback information is carried in the random access response and/or the LTM switching command
  • the feedback information includes a candidate cell TA value and/or a candidate LTM cell TA value
  • the downlink control information includes at least one of index information, random access configuration, and reference signal configuration;
  • the terminal device measured TA value identifier is used to trigger the terminal device to measure and/or calculate the measured TA value of the corresponding candidate cell;
  • the measured TA value is measured and/or calculated by the terminal device through the serving cell TA value and/or compensation value.
  • conditional handover configuration includes at least one of a conditional handover configuration index, an execution condition, a candidate cell configuration parameter, and a candidate cell TA value.
  • conditional LTM switching configuration includes at least one of a conditional LTM switching configuration index, an LTM execution condition, a candidate LTM cell configuration parameter, and a candidate LTM cell TA value.
  • the random access response carries at least one of a TA value of at least one candidate cell and/or candidate LTM cell, uplink scheduling, configuration scheduling information, and a radio temporary identification.
  • the LTM switching command carries at least one of a TA value, uplink scheduling, configuration scheduling information, and a radio temporary identification of at least one candidate LTM cell.
  • the index information includes a conditional switching configuration index and/or a conditional LTM switching configuration index.
  • the terminal device in response to the measurement condition being met, initiates terminal device measurement of a TA value for at least one candidate cell.
  • the method further comprises at least one of the following:
  • 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.
  • the communication device in this application can be a terminal device (such as a mobile phone) or a network device (such as a base station).
  • a terminal device such as a mobile phone
  • a network device such as a base station
  • the present application also provides a storage medium, on which a computer program is stored.
  • a computer program is stored.
  • the steps of any of the processing methods described above are implemented.
  • the technical solution of the present application provides a method for conditional switching and/or conditional LTM switching supporting random access-free by performing random access-free conditional switching and/or conditional LTM switching in response to satisfying the first condition, so as to avoid extended service interruption caused by random access performed by the terminal device.
  • FIG1 is a schematic diagram of the hardware structure of a mobile terminal for implementing various embodiments of the present application.
  • FIG2 is a diagram of a communication network system architecture provided in an embodiment of the present application.
  • FIG3 is a schematic diagram of a hardware structure of a controller 140 provided in the present application.
  • FIG4 is a schematic diagram of the hardware structure of a network node 150 provided in the present application.
  • FIG5 is a schematic flow chart of a processing method according to the first embodiment
  • FIG6 is a schematic diagram of a conditional switching process in the prior art
  • FIG7 is a schematic diagram of an interaction process according to a second embodiment of the present invention.
  • FIG8 is a schematic diagram of an interaction process according to a third embodiment of the present invention.
  • FIG9 is a schematic diagram of an interaction process according to a fourth embodiment of the present invention.
  • FIG10 is a schematic diagram of an interaction process according to a fifth embodiment of the present invention.
  • FIG11 is a schematic diagram of an interaction process according to a sixth embodiment of the present invention.
  • FIG12 is a schematic diagram of an interaction process according to a seventh embodiment of the present invention.
  • FIG13 is a schematic diagram of an interaction process according to an eighth embodiment of the present invention.
  • FIG14 is a schematic diagram of an interaction process according to a ninth embodiment of the present invention.
  • FIG15 is a schematic diagram of an interaction process according to an eleventh embodiment of the present invention.
  • FIG16 is a schematic flow chart of a processing method according to a twelfth embodiment
  • FIG17 is a first structural diagram of a processing device provided in an embodiment of the present application.
  • FIG18 is a second structural schematic diagram of a processing device provided in an embodiment of the present application.
  • FIG19 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application.
  • 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.
  • first information may also be referred to as the second information
  • second information may also be referred to as the first information.
  • word “if” as used herein can be interpreted as “at the time of” or “when” or “in response to determination”.
  • singular forms “one”, “one” and “the” are intended to also include plural forms, unless there is an opposite indication in the context.
  • “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.
  • 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.
  • 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.
  • 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.
  • S2 first and then S1, etc., but these should all be within the scope of protection of this application.
  • module means, “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.
  • the communication device in this application can be a terminal device (such as a mobile phone) or a network device (such as a base station).
  • a terminal device such as a mobile phone
  • a network device such as a base station
  • the terminal device may be implemented in various forms.
  • 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.
  • intelligent terminal devices such as mobile phones, tablet computers, laptop computers, PDAs, portable media players (PMPs), navigation devices, wearable devices, smart bracelets, pedometers, etc.
  • PDAs portable media players
  • navigation devices wearable devices
  • smart bracelets smart bracelets
  • pedometers etc.
  • fixed terminal devices such as digital TVs and desktop computers.
  • FIG. 1 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: an RF (Radio Frequency) unit 101, a WiFi module 102, an audio output unit 103, an A/V (audio/video) input unit 104, a sensor 105, a display unit 106, a user input unit 107, an interface unit 108, a memory 109, a processor 110, and a power supply 111.
  • RF Radio Frequency
  • the radio frequency unit 101 can be used to receive and send signals during information transmission or communication. Specifically, after receiving the downlink information of the base station, to the processor 110 for processing; in addition, the uplink data is sent to the base station.
  • 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 communication 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.
  • 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.
  • WiFi is a short-range wireless transmission technology.
  • the mobile terminal can help users send and receive emails, browse web pages, and access streaming media through the WiFi module 102, which provides users with wireless broadband Internet access.
  • FIG1 shows the WiFi module 102, it is understandable that it is not a necessary component of the mobile terminal and can be omitted as needed without changing the essence of the invention.
  • 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.
  • 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 the operation modes such as the telephone call mode, the recording mode, the voice recognition mode, etc., 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 the 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.
  • the mobile terminal 100 also includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors.
  • the light sensor includes an ambient light sensor and a proximity sensor.
  • the ambient light sensor can adjust the brightness of the display panel 1061 according to the brightness of the ambient light
  • the proximity sensor can turn off the display panel 1061 and/or the backlight when the mobile terminal 100 is moved to the ear.
  • 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.
  • sensors such as fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc.
  • 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.
  • LCD liquid crystal display
  • OLED organic light-emitting diode
  • 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.
  • 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.
  • 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.
  • the touch panel 1071 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic wave.
  • the user input unit 107 may further include other input devices 1072.
  • 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.
  • a function key such as a volume control key, a switch key, etc.
  • a trackball such as a mouse, a joystick, etc.
  • the touch panel 1071 may cover the display panel 1061.
  • the touch panel 1071 detects a touch operation on or near it, it is transmitted to the processor 110 to determine the type of the touch event, and then the processor 110 provides a corresponding visual output on the display panel 1061 according to the type of the touch event.
  • 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, 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 to the specifics herein.
  • the interface unit 108 serves as an interface through which at least one external device can be connected to the mobile terminal 100.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • the application processor mainly processes the operating system, user interface, and application programs
  • the modem processor mainly processes wireless communications. It is understandable that the above-mentioned modem processor may not be integrated into the processor 110.
  • the mobile terminal 100 may also include a power supply 111 (such as a battery) for supplying power to various components.
  • a power supply 111 (such as a battery) for supplying power to various components.
  • 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.
  • the mobile terminal 100 may further include a Bluetooth module, etc., which will not be described in detail herein.
  • the communication network system is a NR (New Radio) system of universal mobile communication technology.
  • the NR system includes UE (User Equipment) 201, E-UTRAN (Evolved UMTS Terrestrial Radio Access Network) 202, EPC (Evolved Packet Core) 203 and the operator's IP service 204, which are connected in sequence.
  • UE User Equipment
  • E-UTRAN Evolved UMTS Terrestrial Radio Access Network
  • EPC Evolved Packet Core
  • UE201 may be the above-mentioned terminal device 100, which will not be described in detail here.
  • E-UTRAN 202 includes eNodeB 2021 and other eNodeBs 2022 , etc.
  • 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 .
  • a backhaul eg, an X2 interface
  • EPC203 may include MME (Mobility Management Entity) 2031, HSS (Home Subscriber Server) 2032, other MMEs 2033, SGW (Serving Gate Way) 2034, PGW (PDN Gate Way) 2035 and PCRF (Policy and Charging Rules Function) 2036.
  • MME 2031 is a control node that processes signaling between UE 201 and EPC 203, providing bearer and connection management.
  • HSS 2032 is used to provide some registers to manage functions such as home location register (not shown in the figure), and saves 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. It selects and provides available policy and charging control decisions for the policy and charging execution functional unit (not shown in the figure).
  • IP service 204 may include the Internet, intranet, IMS (IP Multimedia Subsystem) or other IP services.
  • IMS IP Multimedia Subsystem
  • Fig. 3 is a schematic diagram of the hardware structure of a controller 140 provided in the present application.
  • 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 performed by the controller in the first embodiment of the above method, and its implementation principle and beneficial effects are similar, which will not be repeated here.
  • 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.
  • Fig. 4 is a schematic diagram of the hardware structure of a network node 150 provided by the present application.
  • 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.
  • 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.
  • 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.
  • the computer program product includes one or more computer instructions.
  • the computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a storage medium, or transmitted from one storage medium to another storage medium.
  • the computer instructions can be transmitted from one 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.).
  • the storage medium can be any available medium that can be accessed by the 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 hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid state drive solid state disk, SSD), etc.
  • FIG. 5 is a schematic diagram of a process flow of a processing method according to a first embodiment.
  • 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:
  • S2 In response to satisfying the first condition, performing random access-free conditional switching and/or conditional LTM switching.
  • FIG. 6 is a schematic diagram of a conditional handover process in the prior art.
  • the traditional conditional handover (CHO, Conditional HandOver) is a handover method in which the candidate cell is separated (Detach) from the original cell after the execution condition is met and then establishes a connection with the target cell, and the current conditional handover method does not support random access-free, so any failure in the handover process (for example: random access failure) will result in a service interruption delay.
  • the terminal when the terminal evaluates the execution condition and at least one candidate cell meets the execution condition, the terminal obtains the candidate cell system message and confirms that the random access preamble can be sent (RO, RACH Occassion), thus resulting in a handover delay (T_IU), wherein IU refers to interruption uncertainty (Interruption Uncertainly), and/or, the time to wait for receiving the random access response after sending the random access preamble (T_RAR), and/or, the delay from the uplink scheduling obtained based on the random access response to sending the first uplink data (T_FirstData).
  • T_IU handover delay
  • T_RAR the time to wait for receiving the random access response after sending the random access preamble
  • T_FirstData the delay from the uplink scheduling obtained based on the random access response to sending the first uplink data
  • conditional layer 1/layer 2 triggered mobility LTM, L1/L2Triggered Mobility
  • conditional switching and/or conditional LTM switching method supporting random access-free is provided by introducing conditional switching and/or conditional LTM switching to obtain the target cell TA value in advance, which can reduce the interruption delay caused by switching.
  • performing random access-free conditional switching and/or conditional LTM switching may be:
  • the random access-free conditional switching and/or the conditional LTM switching is performed.
  • performing random access-free conditional switching and/or conditional LTM switching may be:
  • satisfying the first condition includes at least one of the following:
  • the conditional handover configuration carries indication information that the TA value of the candidate cell is zero and/or indication information that the TA value of the candidate cell is the same as that of the serving cell;
  • the conditional LTM handover configuration carries indication information that the TA value of the candidate LTM cell is zero and/or indication information that the TA value of the candidate LTM cell is the same as that of the serving cell.
  • the terminal device can perform a conditional switching evaluation based on the received pre-configuration information.
  • a conditional switching evaluation based on the received pre-configuration information.
  • a random access preamble is sent to the candidate cell, and a random access response and/or LTM command is received in the serving cell, and the target cell configuration parameters are applied and random access-free conditional switching is performed according to the target cell TA value.
  • the terminal device can perform conditional LTM switching evaluation based on the received pre-configuration information.
  • conditional LTM switching execution condition a random access preamble is sent to the candidate cell, and a random access response and/or LTM command is received in the serving cell, and the target cell configuration parameters are applied and random access-free conditional LTM switching is performed based on the target cell TA value.
  • the terminal device can first receive the pre-configuration information, and then trigger random access through the PDCCH (Physical Downlink Control CHannel) order to obtain the TA value of the target cell in advance.
  • PDCCH Physical Downlink Control CHannel
  • the terminal device may first obtain the TA value of the target cell in advance by triggering random access through PDCCH order, and then perform random access-free conditional switching and/or conditional LTM switching to the target cell according to the TA value of the target cell and pre-configuration information.
  • the pre-configuration information received by the terminal device may include target cell TA indication information. If the target cell TA indication information is indication information that the candidate cell TA value is zero and/or indication information that the candidate cell has the same TA value as the serving cell, the terminal device performs conditional switching evaluation based on the pre-configuration information. When at least one target cell meets the execution conditions, the target cell configuration parameters are applied and random access-free conditional switching to the target cell is performed through the target cell TA indication information.
  • the terminal device performs conditional LTM switching evaluation based on pre-configuration information.
  • the target cell configuration parameters are applied, and random access-free conditional LTM switching is performed to the target cell through the target cell TA indication information.
  • the terminal device can perform conditional switching evaluation based on the received pre-configuration information.
  • an uplink reference signal SRS, Sounding Reference Signal
  • SRS Sounding Reference Signal
  • a random access response and/or LTM command is received in the serving cell, and the target cell configuration parameters are applied and random access-free conditional switching is performed according to the target cell TA value.
  • the terminal device can perform conditional LTM switching evaluation based on the received pre-configuration information.
  • conditional LTM switching execution condition an uplink reference signal is sent to the candidate cell, and a random access response and/or LTM command is received in the serving cell, and the target cell configuration parameters are applied and random access-free conditional LTM switching is performed based on the target cell TA value.
  • the terminal device receives the pre-configuration information sent by the network device and the uplink reference signal sending request triggered by the PDCCH order, then sends the SRS to the corresponding target cell, and receives the TA information fed back by the target cell in the original cell.
  • the terminal device performs conditional switching evaluation based on the TA value of the target cell and the pre-configuration information. When at least one target cell meets the execution condition, the target cell configuration parameters are applied, and the random access-free conditional switching to the target cell is performed through the target cell TA value.
  • the terminal device receives the pre-configuration information and the uplink reference signal sending request triggered by the PDCCH order sent by the network device, and then sends SRS to the corresponding target cell, and receives the TA information fed back by the target cell in the original cell.
  • the terminal device performs conditional LTM switching evaluation based on the TA value of the target cell and the pre-configuration information. When at least one target cell meets the execution conditions, the target cell configuration parameters are applied, and the random access-free conditional LTM switching to the target cell is performed through the target cell TA value.
  • the terminal device can first trigger SRS sending through PDCCH order to obtain the TA value of the target cell in advance, and then provide the target cell TA value and pre-configuration information.
  • the terminal device may also obtain a target cell system message according to pre-configuration information, and send a random access preamble according to the system message carrying random access parameters to obtain the target cell TA value in advance.
  • the terminal device can perform conditional switching evaluation based on the received pre-configuration information.
  • the terminal device can initiate TA value measurement for the candidate cell and perform random access-free conditional switching based on the measured TA value of the target cell.
  • the terminal device can perform conditional LTM switching evaluation based on the received pre-configuration information.
  • the terminal device can initiate TA value measurement for the candidate cell and perform random access-free conditional LTM switching based on the measured TA value of the target cell.
  • the feedback information is carried in a random access response and/or an LTM switching command.
  • the feedback information includes a candidate cell TA value and/or a candidate LTM cell TA value.
  • the downlink control information includes at least one of index information, random access configuration and reference signal configuration.
  • the radio resource control reconfiguration signaling includes at least one of a serving cell TA value, a conditional switching configuration of at least one candidate cell, a conditional LTM switching configuration, a terminal device measured TA value identifier, and a compensation value.
  • the terminal device measured TA value identifier is used to trigger the terminal device to measure and/or calculate the measured TA value of the corresponding candidate cell.
  • the measured TA value is measured and/or calculated by the terminal device through the serving cell TA value and/or compensation value.
  • conditional handover configuration includes at least one of a conditional handover configuration index, an execution condition, a candidate cell configuration parameter, and a candidate cell TA value.
  • conditional LTM switching configuration includes at least one of a conditional LTM switching configuration index, an LTM execution condition, a candidate LTM cell configuration parameter, and a candidate LTM cell TA value.
  • the random access response carries at least one of a TA value of at least one candidate cell and/or candidate LTM cell, uplink scheduling, configuration scheduling information, and a radio temporary identification.
  • the LTM switching command carries at least one of a TA value, uplink scheduling, configuration scheduling information, and a radio temporary identification of at least one candidate LTM cell.
  • the index information includes a conditional switching configuration index and/or a conditional LTM switching configuration index.
  • the terminal device in response to the measurement condition being met, initiates terminal device measurement of a TA value for at least one candidate cell.
  • the system message of the corresponding candidate cell is acquired according to the candidate cell configuration parameters and/or the candidate LTM cell configuration parameters.
  • the system message includes random access parameters and/or reference signal parameters.
  • This embodiment introduces a conditional switching and/or conditional LTM switching method to obtain the TA value of the target cell in advance through the above solution.
  • the random access-free conditional switching includes: not executing the random access process during the conditional switching process, and directly switching to the target cell after the switching condition is met, for example: the candidate cell TA value is zero or the candidate cell TA value has the same TA value as the current serving cell; and/or, before executing the conditional switching, sending a random access preamble and/or reference signal in advance, and after obtaining the candidate cell TA value in the serving cell, directly switching to the target cell according to the obtained TA value after the switching condition is met.
  • the random access-free conditional LTM switching includes: not executing the random access process during the conditional LTM switching, and directly switching to the target cell after the LTM switching condition is met, for example: the candidate LTM cell TA value is zero or the candidate LTM cell TA value has the same TA value as the current serving cell; and/or, before executing the conditional LTM switching, sending a random access preamble and/or reference signal in advance, and after obtaining the candidate LTM cell TA value in the serving cell, directly switching to the target cell according to the obtained TA value after the LTM switching condition is met.
  • This embodiment clarifies the execution conditions of conditional LTM switching through the above solution; and/or performs random access-free through the corresponding TA value.
  • This embodiment through the above scheme, specifically performs random access-free conditional switching and/or conditional LTM switching in response to satisfying the first condition, to provide a method for conditional switching and/or conditional LTM switching that supports random access-free, so as to avoid extended service interruption of the terminal device due to random access execution; and/or, performs uplink synchronization in advance before switching, which helps to reduce switching delay.
  • this embodiment further discloses the processing method in the aforementioned embodiment.
  • Figure 7 is a schematic diagram of the interaction process shown in accordance with the second embodiment of the embodiment of the present invention.
  • the terminal device can send a random access preamble based on the received pre-configuration information to obtain the TA value of the target cell in advance.
  • the terminal device reports a measurement report (MR, Measurement Report), and optionally, the measurement report is a layer three (L3, Layer 3) measurement report.
  • MR Measurement Report
  • L3, Layer 3 layer three
  • the source cell (including or being the first network device) obtains the candidate cell configuration, including: candidate cell configuration parameters and/or random access parameters.
  • the candidate cell (including or being the second network device) may be a candidate LTM cell.
  • the candidate LTM cell configuration includes: candidate LTM cell configuration parameters and/or random access parameters.
  • the source cell sends a conditional handover configuration, including: a conditional handover configuration index (Conditional handover configuration index), an execution condition (Execution condition) and at least one of the candidate cell configurations.
  • a conditional handover configuration index Conditional handover configuration index
  • Executecution condition Execution condition
  • the terminal device receives the conditional switching configuration and saves it locally.
  • conditional handover configuration is sent via RRC (Radio Resource Control) reconfiguration signaling.
  • RRC Radio Resource Control
  • the source cell may send a conditional handover configuration of at least one candidate cell, and distinguish the candidate cells by a conditional handover configuration index.
  • conditional switching may also be a conditional LTM switching.
  • conditional LTM switching configuration includes: a conditional LTM switching configuration index (Conditional LTM configuration index), an LTM execution condition (LTM execution condition), and at least one of the candidate LTM cell configuration parameters.
  • conditional LTM switching configuration index Conditional LTM configuration index
  • LTM execution condition LTM execution condition
  • the source cell may also send common random access parameters for subsequent conditional LTM switching.
  • the terminal device sends a configuration confirmation message.
  • the configuration confirmation is sent via RRCReconfigurationComplete signaling.
  • the terminal device evaluates candidate cells according to execution conditions, and sends a random access preamble to at least one candidate cell when the execution conditions are met.
  • the terminal device may evaluate candidate cells according to LTM execution conditions, and send a random access preamble to at least one candidate LTM cell when the execution conditions are met.
  • the terminal device after sending the random access preamble, the terminal device returns to the source cell to receive response information.
  • satisfying the execution condition and/or the LTM execution condition includes: the signal strength satisfies a threshold value, and/or the signal strength satisfies the threshold value and is maintained for a period of time.
  • the candidate cell receives the random access preamble sent by the terminal device, calculates the corresponding TA value, and sends a response message to the source cell via signaling.
  • the candidate cell may also provide at least one of uplink scheduling (UL Grant), configuration scheduling (CG, Configured Grant) information and radio temporary identification (RNTI, Radio Network Temporary Identifier) to the source cell.
  • UL Grant uplink scheduling
  • CG configuration scheduling
  • RNTI Radio Network Temporary Identifier
  • the response information sent may be any interactive signaling between base stations, which is not limited in the embodiments of the present application.
  • the source cell carries the candidate cell TA value and/or sends it to the terminal device through a random access response (RAR, Random Access Response).
  • RAR Random Access Response
  • the random access response may carry a TA value of the at least one candidate cell and/or candidate LTM cell.
  • the network device sends at least one RAR to carry the TA value of at least one candidate cell and/or candidate LTM cell.
  • the random access response may also carry at least one of candidate cell uplink scheduling, configuration scheduling information, and a radio temporary identity.
  • the terminal device After receiving the TA value of the candidate cell, the terminal device starts the corresponding time advance timer (TAT, Timing Advance Timer).
  • TAT time advance timer
  • the source cell may also carry at least one candidate LTM cell TA value through the LTM handover command.
  • the LTM switching command may also carry at least one of candidate LTM cell uplink scheduling, configuration scheduling information, and radio temporary identification.
  • the LTM switching command is carried via MAC (Media Access Control) layer signaling, such as: MAC subheader and/or MAC CE (Control Element).
  • MAC Media Access Control
  • the terminal device initiates random access-free (RACH-Less) conditional switching and/or conditional LTM switching based on the received candidate cell TA value and/or candidate LTM cell TA value.
  • RACH-Less random access-free
  • the terminal device evaluates the candidate cell execution conditions and/or LTM execution conditions, and initiates random access-free conditional switching or conditional LTM switching when at least one candidate cell still meets the execution conditions or LTM execution conditions and the corresponding TAT is still running.
  • the terminal device applies corresponding candidate cell configuration parameters or candidate LTM cell configuration parameters.
  • the terminal device sends uplink data and/or RRC reconfiguration completion signaling to the target cell.
  • the target cell responds to the uplink data and/or RRC reconfiguration completion signaling sent by the terminal device, sends confirmation information and/or RRC reconfiguration completion confirmation, and completes the conditional switching or conditional LTM switching.
  • the RRC reconfiguration completion confirmation can be an automatic repeat request confirmation (ARQ ACK, Automatic Repeat request acknowledgment) and/or an automatic hybrid retransmission request confirmation (HARQ-ACK, Hybrid automatic repeat request acknowledgment), for example: the terminal device sends an RRC reconfiguration completion signaling, receives ARQ ACK and/or HARQ-ACK fed back by the candidate cell, and the terminal device sends the first uplink data, and receives ARQ ACK and/or HARQ-ACK fed back by the candidate cell.
  • ARQ ACK Automatic Repeat request acknowledgment
  • HARQ-ACK Hybrid automatic repeat request acknowledgment
  • the terminal device completes conditional switching or conditional LTM switching after receiving confirmation information of the candidate cell, and uses the candidate cell as the serving cell (Serving Cell).
  • the terminal device still saves the conditional switching configuration and/or the conditional LTM switching configuration after completing the conditional switching or the conditional LTM switching.
  • This embodiment adopts the above scheme, specifically pre-configures random access parameters through the network device, so that the terminal device can perform uplink synchronization in advance and/or obtain the TA value of the target cell in advance, and perform random access-free conditional switching and/or conditional LTM switching, eliminating measurement reporting and/or switching signaling, and/or performing early uplink synchronization, reducing signaling overhead and/or accelerating the switching process and/or reducing service interruption delay, and/or clarifying the uplink random access-free conditional switching and/or conditional LTM switching process.
  • this embodiment further discloses the processing method in the foregoing embodiments.
  • the terminal device can first receive the pre-configuration information, and then trigger random access through the PDCCH order to obtain the TA value of the target cell in advance.
  • the terminal device reports a measurement report, and optionally, the measurement report is a layer 3 measurement report.
  • the source cell obtains candidate cell configuration, including: candidate cell configuration parameters and/or random access parameters.
  • the candidate cell may be a candidate LTM cell.
  • the candidate LTM cell configuration includes: candidate LTM cell configuration parameters and/or random access parameters.
  • obtaining the candidate cell configuration and/or candidate LTM cell configuration can be carried through any interactive signaling between base stations, including but not limited to: UL RRC MESSAGE TRANSFER, HANDOVER REQUEST, HANDOVER REQUEST ACKNOWLEDGE, UE CONTEXT MODIFICATION REQUEST, UE CONTEXT MODIFICATION RESPONSE, which is not limited in the embodiments of the present application.
  • the source cell sends a conditional switching configuration, including: a conditional switching configuration index, an execution condition, and at least one of a candidate cell configuration.
  • the terminal device receives the conditional switching configuration and saves it locally.
  • conditional handover configuration is sent via RRC reconfiguration signaling.
  • the source cell may send a conditional handover configuration of at least one candidate cell, and distinguish the candidate cells by a conditional handover configuration index.
  • conditional switching may also be a conditional LTM switching.
  • conditional LTM switching configuration includes: at least one of a conditional LTM switching configuration index, an LTM execution condition, and a candidate LTM cell configuration parameter.
  • the source cell may also send a general random access parameter for subsequent LTM switching.
  • the terminal device sends a configuration confirmation message.
  • the configuration confirmation information is sent via RRC reconfiguration completion signaling.
  • the network device sends DCI via PDCCH to request the terminal device to perform random access triggered by PDCCH-order.
  • the DCI carries index information and/or random access configuration.
  • the DCI carries at least one index information and/or random access configuration.
  • the index information is a conditional switching configuration index and/or a conditional LTM switching configuration index.
  • the terminal device determines the candidate cell and random access parameters according to the index information and the conditional switching configuration, and sends a random access preamble to the candidate cell according to the random access parameters.
  • the terminal device sends a random access preamble to the candidate cell according to the random access configuration.
  • the terminal device determines the candidate cell and the random access parameters according to the index information and the conditional switching configuration, and the terminal device then sends the random access preamble according to the random access parameters and the random access configuration.
  • the terminal device receives response information in the source cell after sending the random access preamble.
  • the terminal device sends a random access preamble to at least one candidate cell based on at least one index information and/or random access configuration.
  • the terminal device sends a random access preamble to at least one candidate cell based on a PDCCH-order random access triggered by at least one DCI.
  • the terminal device determines a candidate cell to send a random access preamble based on the index type carried by the DCI, for example, if the index information is a conditional switching configuration index, a random access preamble is sent to the candidate cell.
  • the index information is a conditional LTM switching configuration index
  • a random access preamble is sent to the candidate LTM cell.
  • the candidate cell receives the random access preamble sent by the terminal device, calculates the corresponding TA value, and sends response information to the source cell through signaling.
  • the candidate cell may also provide at least one of uplink scheduling, configuration scheduling information, and radio temporary identification to the source cell.
  • the signaling used by the candidate cell to send the response information may be any interactive signaling between base stations, which is not limited in the embodiments of the present application.
  • the source cell carries the candidate cell TA value via a random access response and sends it to the terminal device.
  • the random access response may carry a TA value of at least one candidate cell and/or candidate LTM cell.
  • the network device sends at least one RAR to carry at least one candidate cell and/or candidate LTM cell TA value.
  • the random access response may also carry at least one of uplink scheduling of the candidate cell and/or candidate LTM cell, configuration scheduling information, and a radio temporary identity.
  • the terminal device After receiving the TA value of the candidate cell and/or the candidate LTM cell, the terminal device starts a corresponding time advance timer.
  • the source cell may also carry at least one candidate LTM cell TA value through the LTM handover command.
  • the LTM switching command may also carry at least one of candidate LTM cell uplink scheduling, configuration scheduling information and/or radio temporary identification.
  • the LTM switching command is carried via MAC layer signaling, such as MAC subheader and/or MAC CE.
  • the terminal device evaluates the candidate cell execution conditions and/or LTM execution conditions. When at least one candidate cell meets the execution conditions or LTM execution conditions and the corresponding TAT is still running, the terminal device initiates random access-free conditional switching based on the received candidate cell TA value, or initiates random access-free conditional LTM switching based on the candidate LTM cell TA value.
  • the terminal device applies corresponding candidate cell configuration parameters or candidate LTM cell configuration parameters.
  • the terminal device sends uplink data and/or RRC reconfiguration completion signaling to the target cell.
  • the target cell responds to the uplink data and/or RRC reconfiguration completion signaling sent by the terminal device, sends confirmation information and/or RRC reconfiguration completion confirmation, and completes the conditional switching or conditional LTM switching.
  • the RRC reconfiguration completion confirmation may be an automatic repeat request confirmation and/or an automatic hybrid repeat request confirmation, for example: the terminal device sends an RRC reconfiguration completion signaling, receives an ARQ ACK and/or HARQ-ACK fed back by the candidate cell, the terminal device sends the first uplink data, and receives an ARQ ACK and/or HARQ-ACK fed back by the candidate cell.
  • the terminal device After receiving the candidate cell confirmation information, the terminal device completes the conditional switching and/or conditional LTM switching and uses the candidate cell as the serving cell.
  • the terminal device still saves the conditional switching configuration and/or the conditional LTM switching configuration after completing the conditional switching or the conditional LTM switching.
  • This embodiment adopts the above scheme, specifically pre-configuring random access parameters and/or sending random access requests in advance through network equipment, so that the terminal equipment can obtain the TA value of the target cell in advance, and perform random access-free conditional switching and/or conditional LTM switching, eliminating the need for measurement reporting and/or switching signaling, flexibly indicating cells that need to be uplink synchronized in advance, reducing signaling overhead and/or accelerating the switching process and/or reducing service interruption delay, and/or clarifying the random access-free conditional switching and/or conditional LTM switching process.
  • this embodiment further discloses the processing method in the foregoing embodiments.
  • FIG 9 is a schematic diagram of the interaction process shown in accordance with the fourth embodiment of the present invention.
  • random access can be triggered by PDCCH order first, and then the target cell TA value and pre-configuration information are provided to the terminal device.
  • the terminal device reports a measurement report, and optionally, the measurement report is a layer 3 measurement report.
  • the source cell obtains candidate cell configuration, including: candidate cell configuration parameters and/or random access parameters.
  • the candidate cell may be a candidate LTM cell.
  • the candidate LTM cell configuration includes: candidate LTM cell configuration parameters and/or random access parameters.
  • the acquisition of candidate cell configuration and/or candidate LTM cell configuration may be through any interactive signaling between base stations, including but not limited to: UL RRC MESSAGE TRANSFER, HANDOVER REQUEST REQUEST, HANDOVER REQUEST ACKNOWLEDGE, UE CONTEXT MODIFICATION REQUEST, UE CONTEXT MODIFICATION RESPONSE, which is not limited in the embodiments of the present application.
  • the network device sends DCI via PDCCH to require the terminal device to perform random access triggered by PDCCH-order.
  • the DCI carries random access configuration.
  • the DCI may also carry at least one index information and/or at least one index random access configuration.
  • the network device may also trigger the terminal device to send a random access preamble to at least one candidate cell by sending at least one DCI.
  • the terminal device after receiving the random access control information triggered by PDCCH-odrer, the terminal device sends a random access preamble to the candidate cell according to the random access configuration.
  • the terminal device sends a random access preamble to at least one candidate cell based on at least one index information and/or at least one index random access configuration.
  • the terminal device sends a random access preamble to at least one candidate cell in response to at least one DCI-triggered random access transmission request.
  • the candidate cell receives the random access preamble sent by the terminal, calculates a corresponding TA value, and sends response information to the source cell through signaling.
  • the candidate cell may also provide at least one of uplink scheduling, configuration scheduling information, and radio temporary identification to the source cell.
  • the signaling may be any interactive signaling between base stations, including but not limited to: HANDOVER REQUEST, HANDOVER REQUEST ACKNOWLEDGE, UE CONTEXT MODIFICATION REQUEST, UE CONTEXT MODIFICATION RESPONSE, which is not limited in the embodiments of the present application.
  • the source cell sends a conditional switching configuration, including at least one of a conditional switching configuration index, an execution condition, a candidate cell configuration parameter, and a candidate cell TA value.
  • the terminal device receives the conditional switching configuration and saves it locally.
  • conditional handover configuration is sent via RRC reconfiguration signaling.
  • the source cell may send a conditional handover configuration of at least one candidate cell, and distinguish the candidate cells by a conditional handover configuration index.
  • conditional switching may also be a conditional LTM switching.
  • conditional LTM switching configuration includes: at least one of a conditional LTM switching configuration index, an LTM execution condition, a candidate LTM cell configuration parameter, and a candidate LTM cell TA value.
  • the terminal device After receiving the TA value of the candidate cell and/or the candidate LTM cell, the terminal device starts the corresponding TAT.
  • the terminal device sends a configuration confirmation message.
  • the configuration confirmation is sent via RRC reconfiguration completion signaling.
  • the terminal device evaluates the candidate cell execution conditions and/or LTM execution conditions. When at least one candidate cell meets the execution conditions or LTM execution conditions and the corresponding TAT is still running, the terminal device initiates random access-free conditional switching or conditional LTM switching based on the received candidate cell TA value.
  • the terminal device applies corresponding candidate cell configuration parameters or candidate LTM cell configuration parameters.
  • the terminal device sends uplink data and/or RRC reconfiguration completion signaling to the target cell.
  • the target cell responds to the uplink data and/or RRC reconfiguration completion signaling sent by the terminal device, sends confirmation information and/or RRC reconfiguration completion confirmation, and completes the conditional switching.
  • the RRC reconfiguration completion confirmation may be an automatic repeat request confirmation and/or an automatic hybrid repeat request confirmation, for example: the terminal device sends an RRC reconfiguration completion signaling, receives an ARQ ACK and/or HARQ-ACK fed back by the candidate cell, the terminal device sends the first uplink data, and receives an ARQ ACK and/or HARQ-ACK fed back by the candidate cell.
  • the terminal device completes the conditional switching after receiving the candidate cell confirmation information and uses the candidate cell as the serving cell.
  • the terminal device after completing the conditional handover or conditional LTM handover, the terminal device still saves the conditional handover configuration and/or the conditional LTM handover configuration, and optionally also includes the candidate cell TA value and/or the candidate LTM cell TA value.
  • This embodiment adopts the above scheme, specifically through the network device sending a random access request in advance, obtaining the TA value of the target cell in advance, and providing the target cell TA value and/or configuration parameters in a pre-configuration manner, so that the terminal device can perform random access-free conditional switching and/or conditional LTM switching, eliminating the need for measurement reporting and/or switching signaling, and flexibly configuring the cell that has performed uplink synchronization in advance, reducing signaling overhead and/or accelerating the switching process and/or reducing service interruption delay, and/or clarifying the random access-free conditional switching and/or conditional LTM switching process.
  • this embodiment further discloses the processing method in the foregoing embodiments.
  • Figure 10 is a schematic diagram of the interaction process shown in accordance with the fifth embodiment of the embodiment of the present invention.
  • the terminal device performs conditional evaluation based on the pre-configuration information.
  • the target cell configuration parameters are applied, and random access-free switching to the target cell is performed through the target cell TA indication information.
  • the terminal device reports a measurement report, and optionally, the measurement report is a layer 3 measurement report.
  • the source cell obtains candidate cell configuration, including: candidate cell configuration parameters and/or TA information.
  • the TA information includes: the candidate cell and the serving cell have the same TA value, and/or the candidate cell TA value is zero.
  • the candidate cell may be a candidate LTM cell.
  • the candidate LTM cell configuration includes: candidate LTM cell configuration parameters and/or candidate LTM cell TA information.
  • the candidate LTM cell TA information includes: the candidate LTM cell has the same TA value as the serving cell, and/or the candidate LTM cell TA value is zero.
  • the acquisition of candidate cell configuration and/or candidate LTM cell configuration can be carried through any interactive signaling between any base stations, including but not limited to: UL RRC MESSAGE TRANSFER, HANDOVER REQUEST, HANDOVER REQUEST ACKNOWLEDGE, UE CONTEXT MODIFICATION REQUEST, UE CONTEXT MODIFICATION RESPONSE, which is not limited in the embodiments of the present application.
  • the source cell sends a conditional switching configuration, including at least one of a conditional switching configuration index, an execution condition, a candidate cell configuration, and candidate cell TA information.
  • the terminal device receives the conditional switching configuration and saves it locally.
  • conditional handover configuration is sent via RRC reconfiguration signaling.
  • the source cell may send a conditional handover configuration of at least one candidate cell, and distinguish the candidate cells by a conditional handover configuration index.
  • conditional switching may also be a conditional LTM switching.
  • conditional LTM switching configuration includes: at least one of a conditional LTM switching configuration index, an LTM execution condition, a candidate LTM cell configuration, and candidate LTM cell TA information.
  • the terminal device sends a configuration confirmation message.
  • the configuration confirmation is sent via RRC reconfiguration completion signaling.
  • the terminal device evaluates the candidate cell execution conditions and/or LTM execution conditions. When at least one candidate cell meets the execution conditions or LTM execution conditions, the terminal device initiates random access-free conditional switching or conditional LTM switching based on the received candidate cell TA information.
  • the terminal device applies corresponding candidate cell configuration parameters or candidate LTM cell configuration parameters.
  • the terminal device sends uplink data and/or RRC reconfiguration completion signaling to the target cell.
  • the target cell responds to the uplink data and/or RRC reconfiguration completion signaling sent by the terminal device, sends confirmation information and/or RRC reconfiguration completion confirmation, and completes the conditional switching.
  • the RRC reconfiguration completion confirmation may be an automatic repeat request confirmation and/or an automatic hybrid repeat request confirmation, for example: the terminal device sends an RRC reconfiguration completion signaling, receives an ARQ ACK and/or HARQ-ACK fed back by the candidate cell, the terminal device sends the first uplink data, and receives an ARQ ACK and/or HARQ-ACK fed back by the candidate cell.
  • the terminal device completes the conditional switching after receiving the candidate cell confirmation information and uses the candidate cell as the serving cell.
  • the terminal device still saves the conditional switching configuration and/or the conditional LTM switching configuration after completing the conditional switching or the conditional LTM switching.
  • This embodiment adopts the above scheme, specifically, through the network device to obtain the uplink synchronization information of the switching cell in advance, and provide the uplink synchronization information of the target cell in a pre-configured manner, so that the terminal device can perform conditional switching without random access and/or conditional LTM switching, eliminating the need for measurement reporting and/or switching signaling issuance and/or executing a random access process, and flexibly configures the cells that have been obtained in advance without additional uplink synchronization execution, reduces signaling overhead and/or accelerates the switching process and/or reduces service interruption delay, and/or clearly performs conditional switching without random access and/or conditional LTM switching processes.
  • this embodiment further discloses the processing method in the foregoing embodiments.
  • Figure 11 is a schematic diagram of the interaction process shown in accordance with the sixth embodiment of the embodiment of the present invention.
  • the terminal device sends an uplink reference signal based on the received pre-configuration information to obtain the TA value of the target cell in advance.
  • the terminal device reports a measurement report, and optionally, the measurement report is a layer 3 measurement report.
  • the source cell obtains the candidate cell configuration, including: candidate cell configuration parameters and/or reference signal parameters.
  • the candidate cell is a candidate LTM cell.
  • the candidate LTM cell configuration includes: candidate LTM cell configuration parameters and/or reference signal parameters.
  • the source cell sends a conditional switching configuration, including: a conditional switching configuration index, an execution condition, and at least one of a candidate cell configuration parameter.
  • the terminal device receives the conditional switching configuration and saves it locally.
  • conditional handover configuration is sent via RRC reconfiguration signaling.
  • the source cell may send a conditional handover configuration of at least one candidate cell, and distinguish the candidate cells by a conditional handover configuration index.
  • conditional switching may also be a conditional LTM switching.
  • conditional LTM switching configuration includes: at least one of a conditional LTM switching configuration index, an LTM execution condition, and a candidate LTM cell configuration parameter.
  • the source cell may also send common reference signal parameters for subsequent conditional LTM switching.
  • the terminal device sends a configuration confirmation message.
  • the configuration confirmation is sent via RRC reconfiguration completion signaling.
  • the terminal device may evaluate the candidate cells according to the execution conditions, and send an uplink reference signal to at least one candidate cell when the execution conditions are met.
  • the terminal device may evaluate candidate cells according to LTM execution conditions, and send an uplink reference signal to at least one candidate LTM cell when the execution conditions are met.
  • the terminal device receives response information in the source cell after sending the uplink reference signal.
  • satisfying the execution condition and/or the LTM execution condition includes: the signal strength satisfies a threshold value, and/or the signal strength satisfies the threshold value and is maintained for a period of time.
  • the candidate cell receives an uplink reference signal sent by the terminal device, calculates a corresponding TA value, and sends a response message to the source cell via signaling.
  • the candidate cell may also provide an uplink transmission delay to the source cell, and the source cell calculates the TA value of the candidate cell through the transmission delay provided by the candidate cell.
  • the candidate cell may also provide at least one of uplink scheduling, configuration scheduling information, and radio temporary identification to the source cell.
  • the signaling may be any interactive signaling between base stations, including but not limited to: HANDOVER REQUEST, HANDOVER REQUEST ACKNOWLEDGE, UE CONTEXT MODIFICATION REQUEST, UE CONTEXT MODIFICATION RESPONSE, which is not limited in the embodiments of the present application.
  • the source cell sends a candidate cell TA value to the terminal device via a random access response.
  • the random access response may carry at least one candidate cell TA value.
  • the network device sends at least one RAR to carry at least one candidate cell and/or candidate LTM cell TA value.
  • the random access response may also carry at least one of candidate cell uplink scheduling, configuration scheduling information, and a radio temporary identity.
  • the terminal device After receiving the TA value of the candidate cell, the terminal device starts a corresponding time advance timer.
  • the source cell may also carry at least one candidate LTM cell TA value through the LTM handover command.
  • the LTM switching command may also carry at least one of candidate LTM cell uplink scheduling, configuration scheduling information, and radio temporary identification.
  • the LTM switching command is carried via MAC layer signaling, such as MAC subheader and/or MAC CE.
  • the terminal device initiates random access-free conditional switching or LTM execution condition based on the received candidate cell TA value and/or candidate LTM cell TA value.
  • the terminal device evaluates the candidate cell execution conditions and/or LTM execution conditions, and initiates random access-free conditional switching or LTM execution conditions when at least one candidate cell still meets the execution conditions or LTM execution conditions and the corresponding TAT is still running.
  • the terminal device applies corresponding candidate cell configuration parameters or candidate LTM cell configuration parameters.
  • the target cell responds to the uplink data and/or RRC reconfiguration completion signaling sent by the terminal device, sends confirmation information and/or RRC reconfiguration completion confirmation, and completes the conditional switching or conditional LTM switching.
  • the RRC reconfiguration completion confirmation may be an automatic repeat request confirmation and/or an automatic hybrid repeat request confirmation, for example: the terminal device sends an RRC reconfiguration completion signaling, receives an ARQ ACK and/or HARQ-ACK fed back by the candidate cell, the terminal device sends the first uplink data, and receives an ARQ ACK and/or HARQ-ACK fed back by the candidate cell.
  • the terminal device completes conditional switching or conditional LTM switching after receiving confirmation information of the candidate cell, and uses the candidate cell as the serving cell (Serving Cell).
  • the terminal device still saves the conditional switching configuration and/or the conditional LTM switching configuration after completing the conditional switching or the conditional LTM switching.
  • This embodiment adopts the above scheme, specifically pre-configures reference signal parameters through network equipment, so that the terminal equipment can perform uplink synchronization in advance and/or obtain the TA value of the target cell in advance, and perform conditional switching without random access and/or conditional LTM switching, eliminate the need for measurement reporting and/or switching signaling and perform early uplink synchronization, reduce signaling overhead and/or accelerate the switching process and/or reduce service interruption delay, and/or clarify the process of conditional switching without random access and/or conditional LTM switching.
  • this embodiment further discloses the processing method in the foregoing embodiments.
  • the terminal device first receives the pre-configuration information, and then triggers SRS sending through PDCCH order to obtain the target cell TA value in advance.
  • the terminal device reports a measurement report, and optionally, the measurement report is a layer 3 measurement report.
  • the source cell obtains the candidate cell configuration, including: candidate cell configuration parameters and/or reference signal parameters.
  • the candidate cell may be a candidate LTM cell.
  • the candidate LTM cell configuration includes: candidate LTM cell configuration parameters and reference signal parameters.
  • the acquisition of candidate cell configuration and/or candidate LTM cell configuration may be carried through any interactive signaling between base stations, including but not limited to: UL RRC MESSAGE TRANSFER, HANDOVER REQUEST, HANDOVER REQUEST ACKNOWLEDGE, UE CONTEXT MODIFICATION REQUEST, UE CONTEXT MODIFICATION RESPONSE, which is not limited in the embodiments of the present application.
  • the source cell sends a conditional switching configuration, including: a conditional switching configuration index, an execution condition, and at least one of a candidate cell configuration parameter.
  • the terminal device receives the conditional switching configuration and saves it locally.
  • conditional handover configuration is sent via RRC reconfiguration signaling.
  • the source cell may send a conditional handover configuration of at least one candidate cell, and distinguish the candidate cells by a conditional handover configuration index.
  • conditional switching may also be a conditional LTM switching.
  • conditional LTM switching configuration includes: at least one of a conditional LTM switching configuration index, an LTM execution condition, and a candidate LTM cell configuration parameter.
  • the source cell can also send common reference signal parameters (commmon reference signal parameters) for subsequent LTM switching.
  • the terminal device sends a configuration confirmation message.
  • the configuration confirmation is sent via RRC reconfiguration completion signaling.
  • the network device sends DCI via PDCCH to request the terminal device to execute uplink reference signal sending triggered by PDCCH-order.
  • the DCI carries index information and/or reference signal configuration.
  • the DCI carries at least one index information and/or reference signal configuration.
  • the index information is a conditional switching configuration index and/or a conditional LTM switching configuration index.
  • the terminal device determines the candidate cell and reference signal parameters according to the index information and the conditional switching configuration, and sends an uplink reference signal to the candidate cell according to the reference signal parameters.
  • the terminal device sends an uplink reference signal to the candidate cell based on the reference signal configuration.
  • the terminal device determines the candidate cell and reference signal parameters based on the index information and the conditional switching configuration, and then sends an uplink reference signal based on the reference signal parameters.
  • the terminal device after sending the uplink reference signal, the terminal device returns to the source cell to receive response information.
  • the terminal device sends an uplink reference signal to at least one candidate cell based on at least one index information and/or reference signal configuration.
  • the terminal device sends an uplink reference signal to at least one candidate cell based on at least one DCI-triggered PDCCH-order uplink reference signal.
  • the terminal device determines a candidate cell for sending an uplink reference signal based on an index type carried by the DCI. For example, if the index information is a conditional switching configuration index, an uplink reference signal is sent to the candidate cell.
  • an uplink reference signal is sent to the candidate LTM cell.
  • the candidate cell receives an uplink reference signal sent by the terminal device, calculates a corresponding TA value, and sends a response message to the source cell via signaling.
  • the candidate cell may also provide at least one of uplink scheduling, configuration scheduling information, and radio temporary identification to the source cell.
  • the candidate cell may also provide an uplink transmission delay to the source cell, and the source cell calculates the TA value of the candidate cell according to the transmission delay provided by the candidate cell.
  • the signaling may be any interactive signaling between base stations, including but not limited to: HANDOVER REQUEST, HANDOVER REQUEST ACKNOWLEDGE, UE CONTEXT MODIFICATION REQUEST, UE CONTEXT MODIFICATION RESPONSE, which is not limited in the embodiments of the present application.
  • the source cell carries the candidate cell TA value via a random access response and sends it to the terminal device.
  • the random access response may carry a TA value of at least one candidate cell and/or candidate LTM cell.
  • the network device sends at least one RAR to carry at least one candidate cell and/or candidate LTM cell TA value.
  • the random access response may also carry at least one of a candidate cell, a candidate LTM cell uplink scheduling, configuration scheduling information, and a radio temporary identity.
  • the terminal device After receiving the TA value of the candidate cell and/or the candidate LTM cell, the terminal device starts a corresponding time advance timer.
  • the source cell may also carry at least one candidate LTM cell TA value through the LTM handover command.
  • the LTM switching command may also carry at least one of candidate LTM cell uplink scheduling, configuration scheduling information, and radio temporary identification.
  • the LTM switching command is carried via MAC layer signaling, such as MAC subheader and/or MAC CE.
  • the terminal device evaluates the execution conditions of the candidate cells and/or the LTM execution conditions. When at least one candidate cell meets the execution conditions or the LTM execution conditions and the corresponding TAT is still running, the terminal device initiates a random access-free conditional switching based on the received candidate cell TA value, and/or initiates a random access-free conditional LTM switching based on the candidate LTM cell TA value.
  • the terminal device applies corresponding candidate cell configuration parameters or candidate LTM cell configuration parameters.
  • the terminal device sends uplink data and/or RRC reconfiguration completion signaling to the target cell.
  • the target cell responds to the uplink data and/or RRC reconfiguration completion signaling sent by the terminal device, sends confirmation information and/or RRC reconfiguration completion confirmation, and completes the conditional switching or conditional LTM switching.
  • the RRC reconfiguration completion confirmation may be an automatic repeat request confirmation and/or an automatic hybrid repeat request confirmation, for example: the terminal device sends an RRC reconfiguration completion signaling, receives an ARQ ACK and/or HARQ-ACK fed back by the candidate cell, the terminal device sends the first uplink data, and receives an ARQ ACK and/or HARQ-ACK fed back by the candidate cell.
  • the terminal device After receiving the candidate cell confirmation information, the terminal device completes the conditional switching and/or conditional LTM switching and uses the candidate cell as the serving cell.
  • the terminal device still saves the conditional switching configuration and/or the conditional LTM switching configuration after completing the conditional switching or the conditional LTM switching.
  • This embodiment adopts the above scheme, specifically through the network device pre-configuring reference signal parameters and/or issuing uplink reference signal requests, so that the terminal device can obtain the TA value of the target cell in advance, and perform random access-free conditional switching and/or conditional LTM switching, eliminating the need for measurement reporting and/or switching signaling, flexibly indicating cells that need to be uplink synchronized in advance, reducing signaling overhead and/or accelerating the switching process and/or reducing service interruption delay, and/or explicitly executing random access-free conditional switching and/or conditional LTM switching processes.
  • this embodiment further discloses the processing method in the foregoing embodiments.
  • FIG 13 is a schematic diagram of the interaction process shown in accordance with the eighth embodiment of the present invention.
  • SRS sending is first triggered by PDCCH order, and then the target cell TA value and pre-configuration information are provided to the terminal device.
  • the terminal device reports a measurement report, and optionally, the measurement report is a layer 3 measurement report.
  • the source cell obtains the candidate cell configuration, including: candidate cell configuration parameters and/or reference signal parameters.
  • the candidate cell may be a candidate LTM cell.
  • the candidate LTM cell configuration includes: candidate LTM cell configuration parameters and/or reference signal parameters.
  • the acquisition of the candidate cell configuration and/or the candidate LTM cell configuration may be carried by any interactive signaling between base stations, including but not limited to: UL RRC MESSAGE TRANSFER, HANDOVER REQUEST, HANDOVER REQUEST ACKNOWLEDGE, UE CONTEXT MODIFICATION REQUEST, UE CONTEXT MODIFICATION RESPONSE, which are not limited in the embodiments of the present application.
  • the network device sends DCI via PDCCH to require the terminal device to perform uplink reference signal sending triggered by PDCCH-order, and optionally, the DCI carries a reference signal configuration.
  • the DCI may also carry at least one index information and/or at least one reference signal configuration.
  • the network device may also trigger the terminal device to send an uplink reference signal to at least one candidate cell by sending at least one DCI.
  • the terminal device upon receiving the uplink reference signal control information triggered by PDCCH-odrer, the terminal device sends an uplink reference signal to the candidate cell according to the reference signal configuration.
  • the terminal device sends an uplink reference signal to at least one candidate cell based on at least one index information and/or at least one index reference signal configuration.
  • the terminal device sends an uplink reference signal to at least one candidate cell in response to an uplink reference signal request triggered by at least one DCI.
  • the candidate cell receives an uplink reference signal sent by the terminal device, calculates a corresponding TA value, and sends a response message to the source cell via signaling.
  • the candidate cell may also provide an uplink transmission delay to the source cell, and the source cell calculates the TA value of the candidate cell according to the transmission delay provided by the candidate cell.
  • the candidate cell may also provide at least one of uplink scheduling, configuration scheduling information, and radio temporary identification to the source cell.
  • the signaling may be any interactive signaling between base stations, including but not limited to: HANDOVER REQUEST, HANDOVER REQUEST ACKNOWLEDGE, UE CONTEXT MODIFICATION REQUEST, UE CONTEXT MODIFICATION RESPONSE, which is not limited in the embodiments of the present application.
  • the source cell sends a conditional switching configuration, including at least one of a conditional switching configuration index, an execution condition, a candidate cell configuration parameter, and a candidate cell TA value.
  • the terminal device receives the conditional switching configuration and saves it locally.
  • conditional handover configuration is sent via RRC reconfiguration signaling.
  • the source cell may send a conditional handover configuration of at least one candidate cell, and distinguish the candidate cells by a conditional handover configuration index.
  • conditional switching may also be a conditional LTM switching.
  • conditional LTM switching configuration includes: at least one of a conditional LTM switching configuration index, an LTM execution condition, a candidate LTM cell configuration parameter, and a candidate LTM cell TA value.
  • the terminal device After receiving the TA value of the candidate cell and/or the candidate LTM cell, the terminal device starts the corresponding TAT.
  • the terminal device sends a configuration confirmation message.
  • the configuration confirmation is sent via RRC reconfiguration completion signaling.
  • the terminal device evaluates the execution conditions of the candidate cells and/or the LTM execution conditions. When at least one candidate cell meets the execution conditions or the LTM execution conditions and the corresponding TAT is still running, the terminal device initiates random access-free conditional switching and/or conditional LTM switching based on the received TA value of the candidate cell.
  • the terminal device applies corresponding candidate cell configuration parameters or candidate LTM cell configuration parameters.
  • the terminal device sends uplink data and/or RRC reconfiguration completion signaling to the target cell.
  • the target cell responds to the uplink data and/or RRC reconfiguration completion signaling sent by the terminal device, sends confirmation information and/or RRC reconfiguration completion confirmation, and completes the conditional switching.
  • the RRC reconfiguration completion confirmation may be an automatic repeat request confirmation and/or an automatic hybrid repeat request confirmation, for example: the terminal device sends an RRC reconfiguration completion signaling, receives an ARQ ACK and/or HARQ-ACK fed back by the candidate cell, the terminal device sends the first uplink data, and receives an ARQ ACK and/or HARQ-ACK fed back by the candidate cell.
  • the terminal device completes the conditional switching after receiving the candidate cell confirmation information and uses the candidate cell as the serving cell.
  • the terminal device still saves the conditional switching configuration and/or conditional LTM switching configuration after completing the conditional switching or conditional LTM switching.
  • the conditional switching configuration includes the candidate cell TA value
  • the conditional LTM switching configuration includes the candidate LTM cell TA value.
  • This embodiment uses the above scheme, specifically through the network device sending an uplink reference signal sending request, obtains the target cell TA value in advance, and provides the target cell TA value and/or configuration parameters in a pre-configured manner, so that the terminal device can perform random access-free conditional switching and/or conditional LTM switching, eliminates the need for measurement reporting and/or switching signaling, flexibly configures the cell that has performed uplink synchronization in advance, reduces signaling overhead and/or accelerates the switching process and/or reduces service interruption delay, and/or clarifies the random access-free conditional switching and/or conditional LTM switching process.
  • this embodiment further discloses the processing method in the foregoing embodiments.
  • the terminal device obtains the target cell system message based on the pre-configuration information, and sends a random access preamble based on the random access parameters carried by the system message to obtain the target cell TA value in advance.
  • the terminal device reports a measurement report, and optionally, the measurement report is a layer 3 measurement report.
  • the source cell obtains candidate cell configuration, including: candidate cell configuration parameters.
  • the candidate cell may be a candidate LTM cell.
  • the candidate LTM cell configuration includes: candidate LTM cell configuration parameters.
  • the source cell sends a conditional switching configuration, including: a conditional switching configuration index, an execution condition, and at least one of a candidate cell configuration parameter.
  • the terminal device receives the conditional switching configuration and saves it locally.
  • conditional handover configuration is sent via RRC reconfiguration signaling.
  • the source cell may send a conditional handover configuration of at least one candidate cell, and distinguish the candidate cells by a conditional handover configuration index.
  • conditional switching may also be a conditional LTM switching.
  • conditional LTM switching configuration includes: at least one of a conditional LTM switching configuration index, an LTM execution condition, and a candidate LTM cell configuration parameter.
  • the terminal device sends a configuration confirmation message.
  • the configuration confirmation is sent via RRC reconfiguration completion signaling.
  • the terminal device obtains corresponding system messages according to the candidate cell configuration and/or the candidate LTM cell configuration, where the system messages include random access parameters and/or reference signal parameters.
  • the terminal device sends a random access preamble and/or an uplink reference signal based on the random access parameters and/or reference signal parameters.
  • the terminal device may send a random access preamble and/or an uplink reference signal to at least one candidate cell and/or candidate LTM cell.
  • the terminal device can evaluate candidate cells and/or candidate LTM cells based on the execution conditions. When at least one candidate cell and/or candidate LTM cell meets the execution conditions, the system information of the corresponding cell is obtained, and the system information includes random access parameters and/or reference signal parameters. The terminal device sends a random access preamble and/or an uplink reference signal based on the random access parameters and/or reference signal parameters.
  • the terminal device after sending the random access preamble and/or uplink reference signal, the terminal device returns to the source cell to receive response information.
  • satisfying the execution condition and/or the LTM execution condition includes: the signal strength satisfies a threshold value, and/or the signal strength satisfies the threshold value and is maintained for a period of time.
  • the candidate cell and/or the candidate LTM cell receives an uplink reference signal sent by the terminal device, calculates a corresponding TA value, and sends response information to the source cell via signaling.
  • the candidate cell and/or the candidate LTM cell may also provide an uplink transmission delay to the source cell, and the source cell calculates the TA value of the candidate cell according to the transmission delay provided by the candidate cell.
  • the candidate cell and/or the candidate LTM cell may also provide uplink scheduling and/or configuration scheduling information and/or radio temporary identification to the source cell.
  • the signaling used may be any interactive signaling between base stations, including but not limited to: HANDOVER REQUEST, HANDOVER REQUEST ACKNOWLEDGE, UE CONTEXT MODIFICATION REQUEST, UE CONTEXT MODIFICATION RESPONSE, which is not limited in the embodiments of the present application.
  • the source cell carries the candidate cell and/or candidate LTM cell TA value in a random access response and sends it to the terminal device.
  • the random access response may carry a TA value of at least one candidate cell and/or candidate LTM cell.
  • the network device sends at least one RAR to carry at least one candidate cell and/or candidate LTM cell TA value.
  • the random access response may also carry at least one of uplink scheduling, configuration scheduling information and radio temporary identification of the candidate cell and/or candidate LTM cell.
  • the terminal device After receiving the TA value of the candidate cell, the terminal device starts a corresponding time advance timer.
  • the source cell may also carry at least one candidate LTM cell TA value through the LTM handover command.
  • the LTM switching command may also carry at least one of uplink scheduling, configuration scheduling information and radio temporary identification of the candidate LTM cell.
  • the LTM switching command is carried via MAC layer signaling, such as MAC subheader and/or MAC CE.
  • the terminal device evaluates the candidate cell execution conditions and/or LTM execution conditions. When at least one candidate cell meets the execution conditions or LTM execution conditions and the corresponding TAT is still running, the terminal device initiates random access-free conditional switching or LTM execution conditions based on the received candidate cell TA value or candidate LTM cell TA value.
  • the candidate cell if the candidate cell has met the execution conditions and/or LTM execution conditions during the process of the terminal device sending a random access preamble and/or an uplink reference signal, when the terminal device receives the candidate cell TA value or the candidate LTM cell TA value sent by the source cell, it immediately performs random access-free conditional switching or conditional LTM switching.
  • the terminal device applies corresponding candidate cell configuration parameters or candidate LTM cell configuration parameters.
  • the terminal device sends uplink data and/or RRC reconfiguration completion signaling to the target cell.
  • the target cell responds to the uplink data and/or RRC reconfiguration completion signaling sent by the terminal device, sends confirmation information and/or RRC reconfiguration completion confirmation, and completes the conditional switching or conditional LTM switching.
  • the RRC reconfiguration completion confirmation may be an automatic repeat request confirmation and/or an automatic hybrid repeat request confirmation, for example: the terminal device sends an RRC reconfiguration completion signaling, receives an ARQ ACK and/or HARQ-ACK fed back by the candidate cell, the terminal device sends the first uplink data, and receives an ARQ ACK and/or HARQ-ACK fed back by the candidate cell.
  • the terminal device After receiving the candidate cell confirmation information, the terminal device completes the conditional switching or conditional LTM switching and uses the candidate cell as the serving cell.
  • the terminal device still saves the conditional switching configuration and/or conditional LTM switching configuration after completing the conditional switching and/or conditional LTM switching.
  • This embodiment adopts the above scheme, specifically pre-configuring the candidate cell information through the network device, and the terminal device can perform uplink synchronization and/or obtain the target cell TA value in advance according to the pre-configuration information, and perform random access-free conditional switching and/or conditional LTM switching, eliminating the measurement reporting and/or switching signaling issuance and performing early uplink synchronization and/or reserved resource waste, reducing signaling overhead and/or accelerating the switching process and/or reducing service interruption delay, and/or clarifying the random access-free conditional switching and/or conditional LTM switching process.
  • this embodiment further discloses the processing method in the foregoing embodiments.
  • the terminal device after the terminal device reports the measurement report, if it first receives the conditional switching configuration and/or conditional LTM switching configuration of at least one candidate cell sent by the source cell, it can first perform a conditional switching evaluation based on the execution conditions in the conditional switching configuration and/or the conditional LTM switching configuration, and then send a random access preamble and/or an uplink reference signal to at least one candidate cell that meets the execution conditions based on the evaluation results, and receive a response message in the source cell after sending the random access preamble and/or the uplink reference signal.
  • the candidate cell receives the random access preamble and/or uplink reference signal sent by the terminal device, and sends the corresponding TA value and/or uplink transmission delay to the source cell through signaling.
  • the source cell can carry the TA value of the candidate cell and/or candidate LTM cell through the RAR and/or LTM switching command and send it to the terminal device, so that the terminal device initiates random access-free conditional switching and/or conditional LTM switching.
  • the terminal device after the terminal device reports the measurement report, if it first receives the conditional switching configuration and/or conditional LTM switching configuration of at least one candidate cell sent by the source cell, and then receives the DCI sent by the network device through the PDCCH (used to require the terminal device to perform random access and/or uplink reference signal sending triggered by PDCCH-order), then after receiving the random access control information and/or uplink reference signal sending request triggered by PDCCH-odrer, it can send a random access preamble according to the random access parameters and/or random access configuration, and/or send an uplink reference signal according to the reference signal parameters and/or random access configuration, and receive a response in the source cell after sending the random access preamble and/or uplink reference signal.
  • Information After the terminal device reports the measurement report, if it first receives the conditional switching configuration and/or conditional LTM switching configuration of at least one candidate cell sent by the source cell, and then receives the DCI sent by the network device through the PDCCH (used to require the
  • the candidate cell receives the random access preamble and/or uplink reference signal sent by the terminal device, and sends the corresponding TA value and/or uplink transmission delay to the source cell through signaling.
  • the source cell can send the TA value of the candidate cell and/or candidate LTM cell to the terminal device through the RAR and/or LTM switching command, so that the terminal device further performs conditional switching evaluation, and then initiates random access-free conditional switching for the candidate cell that meets the execution conditions according to the evaluation results, and/or initiates random access-free conditional LTM switching for the candidate LTM cell that meets the execution conditions.
  • the terminal device after the terminal device reports the measurement report, if it first receives the DCI sent by the network device through the PDCCH (used to require the terminal device to perform random access and/or uplink reference signal transmission triggered by PDCCH-order), it can send a random access preamble according to the random access parameters and/or random access configuration after receiving the random access control information and/or uplink reference signal transmission request triggered by PDCCH-odrer, and/or send an uplink reference signal according to the reference signal parameters and/or random access configuration, and receive response information in the source cell after sending the random access preamble and/or uplink reference signal.
  • the terminal device after the terminal device reports the measurement report, if it first receives the DCI sent by the network device through the PDCCH (used to require the terminal device to perform random access and/or uplink reference signal transmission triggered by PDCCH-order), it can send a random access preamble according to the random access parameters and/or random access configuration after receiving the random access control information and/or uplink reference signal transmission request
  • the candidate cell receives the random access preamble and/or uplink reference signal sent by the terminal device, and sends the corresponding TA value and/or uplink transmission delay to the source cell through signaling.
  • the source cell can send the TA value of the candidate cell and/or candidate LTM cell to the terminal device via the RAR and/or LTM switching command, and send the conditional switching configuration and/or conditional LTM switching configuration of the corresponding candidate cell, so that the terminal device performs conditional switching evaluation according to the execution conditions in the conditional switching configuration and/or conditional LTM switching configuration, and then initiates random access-free conditional switching for the candidate cell that meets the execution conditions based on the evaluation results, and/or initiates random access-free conditional LTM switching for the candidate LTM cell that meets the execution conditions.
  • This embodiment adopts the above scheme, specifically through the terminal device, according to the content and/or sequence of the configuration information and/or DCI sent by the network device, flexibly determines the method of obtaining the TA value of the target cell, performs random access-free conditional switching and/or conditional LTM switching, eliminates the measurement reporting and/or switching signaling issuance and performs early uplink synchronization and/or reserves resource waste, reduces signaling overhead and/or accelerates the switching process and/or reduces service interruption delay, and/or explicitly executes the random access-free conditional switching and/or conditional LTM switching process.
  • FIG15 is a schematic diagram of an interaction process according to an eleventh embodiment of the present invention.
  • a method for obtaining a target cell TA value through autonomous measurement by a terminal device is proposed.
  • the early uplink synchronization of the terminal equipment is controlled by the network equipment.
  • the PDCCH order triggers the terminal equipment to send a random access preamble to the candidate cell, and obtains the TA value of the candidate cell through the serving cell, and/or activates the TCI State of the target cell through the MAC CE and performs TA value measurement under the instruction of the terminal to measure TA.
  • the terminal equipment cannot determine the timing of autonomously measuring the TA value of the candidate cell
  • the terminal equipment cannot determine the timing of autonomously measuring the TA value of the candidate cell.
  • This embodiment introduces a method for obtaining the TA value of the target cell in advance in conditional handover and/or conditional LTM handover.
  • the terminal device performs random access-free conditional switching and/or conditional LTM switching in response to satisfying the first condition.
  • performing random access-free conditional switching and/or conditional LTM switching includes performing random access-free conditional switching and/or conditional LTM switching based on a measured TA value.
  • the terminal device reports a measurement report, and optionally, the measurement report is a layer 3 measurement report.
  • the source cell obtains the candidate cell configuration, including: candidate cell configuration parameters and/or compensation values.
  • the compensation value is the uplink reception time difference (UL RX timing difference) and/or the downlink transmission time difference (DL TX timing difference).
  • the compensation value is used to assist the terminal device in calculating the TA value of the candidate cell.
  • the time difference may be a time difference on the network device side and/or a time difference on the terminal device side, for example: a time difference for the network device to receive uplinks, a time difference for the network device to send downlinks, a time difference for the terminal device to send uplinks, and a time difference for the terminal device to receive downlinks, which is not limited in this embodiment.
  • the compensation value is a compensation value of a specific candidate cell, for example, each candidate cell has its own compensation value.
  • the candidate cell is a candidate LTM cell.
  • the candidate LTM cell configuration includes at least one of a terminal equipment measured TA value identifier (ueMeasuredTA-ID), an advance uplink synchronization configuration, a configuration scheduling configuration, a candidate cell complete configuration indication, a new terminal radio temporary identifier, a time advance timer, a candidate cell difference configuration, and a candidate cell reference configuration.
  • a terminal equipment measured TA value identifier ueMeasuredTA-ID
  • the network further configures a serving cell terminal device to measure a TA value identifier
  • the layer one measurement configuration includes LTM channel state information resource configuration and/or LTM channel state information report configuration.
  • the scheduling configuration is also associated with beam information.
  • configuring the scheduling configuration includes configuring scheduling type 1 (CG Type 1).
  • the LTM candidate cell configuration is associated with a corresponding index.
  • the source cell sends a conditional switching configuration, including at least one of a conditional switching configuration index, a conditional execution condition, and a candidate cell configuration.
  • the terminal device stores the received conditional switching configuration locally.
  • the conditional switching configuration is sent via RRC reconfiguration signaling.
  • the source cell may send a conditional handover configuration of at least one candidate cell, and distinguish the candidate cells by a conditional handover configuration index.
  • conditional switching may also be a conditional LTM switching.
  • conditional LTM switching configuration includes: a conditional LTM switching configuration index, an LTM execution condition, and at least one of a candidate LTM cell configuration parameter.
  • the source cell may also send general random access parameters for subsequent conditional LTM switching.
  • the terminal device sends a configuration confirmation message.
  • the configuration confirmation is sent via RRC reconfiguration completion signaling.
  • the terminal device determines whether the corresponding candidate cell is configured with a terminal device measurement TA value identifier. If the terminal device measurement TA value identifier is configured, the terminal device can be triggered to measure the TA value; if the terminal device measurement TA value identifier is not configured, random access condition switching is performed or the TA value acquisition method in the aforementioned embodiment is executed, which is not repeated in this embodiment.
  • the measurement condition also includes at least one terminal device measurement TA value identifier configured in the candidate cell and the terminal device measurement TA value identifier configured in the current serving cell.
  • the TA value measured by the equipment has the same identification.
  • the terminal device determines whether the terminal device measured TA value identifier of the corresponding candidate cell configuration is the same as the terminal device measured TA value identifier configured in the current service cell. If they are the same, the terminal device can be triggered to measure the TA value; if they are not the same, random access condition switching is executed or the TA value acquisition method in the aforementioned embodiment is executed, which is not repeated in this embodiment.
  • the terminal device may evaluate the candidate cells according to the LTM execution condition, and when at least one candidate cell meets the execution condition, initiate the terminal device to measure the TA value of the corresponding candidate cell.
  • At least one candidate cell satisfies the execution condition, including: at least one candidate cell satisfies the conditional execution condition and/or the LTM execution condition.
  • the terminal device measures the TA value by measuring and/or calculating the TA value and/or compensation value of the serving cell.
  • the compensation value can be obtained through a candidate cell index.
  • the serving cell TA value is carried through MAC CE.
  • MAC CE For details, please refer to the existing protocol TS 38.321, which is not elaborated in this embodiment.
  • satisfying the execution condition and/or the LTM execution condition includes: the signal limit satisfies a threshold value and/or the signal strength satisfies a threshold value and is maintained for a period of time.
  • the terminal device initiates random access-free conditional switching or LTM conditional switching based on the measured TA value of the candidate cell and/or the TA value of the candidate LTM cell, and sends uplink data and/or RRC reconfiguration completion signaling to the candidate cell.
  • the terminal device applies the measured TA value of the candidate cell and/or starts TAT.
  • the terminal device confirms whether there is a measured TA value of the candidate cell, and if there is a measured TA value of the candidate cell, performs random access condition switching; and/or, if there is no measured TA value of the candidate cell, performs random access condition switching.
  • the terminal device applies corresponding candidate cell configuration parameters or candidate LTM cell configuration parameters, and optionally, the configuration parameters are complete configurations.
  • the complete configuration is formed by combining the reference configuration and/or the differential configuration.
  • the target cell responds to the uplink data and/or RRC reconfiguration completion signaling sent by the terminal device and sends new downlink data scheduling and/or new uplink data scheduling.
  • the terminal device After receiving the new scheduling of the candidate cell, the terminal device completes the conditional switching or conditional LTM switching and regards the candidate cell as the serving cell.
  • the terminal device still saves the conditional switching configuration and/or the conditional LTM switching configuration after completing the conditional switching or the conditional LTM switching.
  • the terminal equipment updates the TA value identifier measured by the terminal equipment of the serving cell, for example, the TA value identifier measured by the terminal equipment is updated to the TA value identifier measured by the terminal equipment of the candidate cell of the handover.
  • the terminal device can perform uplink synchronization in advance and/or obtain the TA value of the target cell in advance, and perform random access-free conditional switching and/or conditional LTM switching, eliminating the need for measurement reporting and/or switching signaling, performing early uplink synchronization, reducing signaling overhead, and/or accelerating the switching process, and/or reducing service interruption delay, and/or clarifying the random access-free conditional switching and/or conditional LTM switching process.
  • FIG. 16 is a flow chart of a processing method according to a twelfth embodiment.
  • the method of the embodiment of the present application can be applied to a network device (such as a base station), and includes the steps of:
  • S1 Send the first content so that the terminal device performs random access-free conditional switching and/or conditional LTM switching based on the first content.
  • the first content includes at least one of downlink control information, conditional switching configuration of the candidate cell, conditional LTM switching configuration, serving cell TA value, terminal equipment measured TA value identifier and compensation value.
  • conditional switching configuration includes indication information that the TA value of the candidate cell is zero and/or indication information that the TA value of the candidate cell is the same as that of the serving cell.
  • conditional LTM switching configuration includes indication information that the TA value of the candidate LTM cell is zero and/or indication information that the TA value of the candidate LTM cell is the same as that of the serving cell.
  • the terminal device performs random access-free conditional switching and/or conditional LTM switching based on the first content, including:
  • the terminal device selects or determines a candidate cell that meets the second condition based on the first content
  • the terminal device sends a random access preamble and/or a reference signal to a candidate cell that meets the second condition, and the terminal device performs random access-free conditional switching and/or conditional LTM switching based on the feedback information corresponding to the random access preamble and/or reference signal provided by the serving cell; and/or the terminal device measures and/or calculates the measured TA value of the candidate cell that meets the second condition, and performs random access-free conditional switching and/or conditional LTM switching based on the measured TA value.
  • the second condition includes a conditional switching execution condition and/or a conditional LTM switching execution condition.
  • the feedback information is carried in a random access response and/or an LTM switching command.
  • the feedback information includes a candidate cell TA value and/or a candidate LTM cell TA value.
  • the downlink control information includes at least one of index information, random access configuration and reference signal configuration.
  • the terminal device measured TA value identifier is used to trigger the terminal device to measure and/or calculate the measured TA value of the corresponding candidate cell.
  • the measured TA value is measured and/or calculated by the terminal device through the serving cell TA value and/or compensation value.
  • conditional handover configuration includes at least one of a conditional handover configuration index, an execution condition, a candidate cell configuration parameter, and a candidate cell TA value.
  • conditional LTM switching configuration includes at least one of a conditional LTM switching configuration index, an LTM execution condition, a candidate LTM cell configuration parameter, and a candidate LTM cell TA value.
  • the random access response carries at least one of a TA value of at least one candidate cell and/or candidate LTM cell, uplink scheduling, configuration scheduling information, and a radio temporary identification.
  • the LTM switching command carries at least one of a TA value, uplink scheduling, configuration scheduling information, and a radio temporary identification of at least one candidate LTM cell.
  • the index information includes a conditional switching configuration index and/or a conditional LTM switching configuration index.
  • the terminal device in response to the measurement condition being met, initiates terminal device measurement of a TA value for at least one candidate cell.
  • the network device may calculate the TA value of the candidate cell according to the uplink transmission delay.
  • the conditional handover configuration carries indication information that the TA value of the candidate cell is zero and/or indication information that the TA value of the candidate cell is the same as that of the serving cell;
  • the conditional LTM handover configuration carries indication information that the TA value of the candidate LTM cell is zero and/or indication information that the TA value of the candidate LTM cell is the same as that of the serving cell.
  • the device further comprises at least one of the following:
  • the feedback information is carried in the random access response and/or the LTM switching command
  • the feedback information includes a candidate cell TA value and/or a candidate LTM cell TA value
  • the downlink control information includes at least one of index information, random access configuration, and reference signal configuration;
  • the radio resource control reconfiguration signaling includes at least one of a serving cell TA value, a conditional switching configuration of at least one candidate cell, a conditional LTM switching configuration, a terminal equipment measured TA value identifier, and a compensation value.
  • the device further comprises at least one of the following:
  • the conditional handover configuration includes at least one of a conditional handover configuration index, an execution condition, a candidate cell configuration parameter, and a candidate cell TA value;
  • the conditional LTM handover configuration includes at least one of a conditional LTM handover configuration index, an LTM execution condition, a candidate LTM cell configuration parameter, and a candidate LTM cell TA value;
  • the random access response carries at least one of a TA value of at least one candidate cell and/or candidate LTM cell, uplink scheduling, configuration scheduling information, and a radio temporary identification;
  • the LTM handover command carries at least one of the TA value, uplink scheduling, configuration scheduling information, and radio temporary identification of at least one candidate LTM cell;
  • the index information includes a conditional switching configuration index and/or a conditional LTM switching configuration index
  • the terminal device In response to the measurement condition being met, the terminal device initiates the terminal device to measure a TA value for at least one candidate cell.
  • the device further comprises at least one of the following:
  • the system message of the corresponding candidate cell is obtained according to the candidate cell configuration parameters and/or the candidate LTM cell configuration parameters;
  • conditional LTM switching evaluation based on conditional LTM switching configuration
  • the measurement condition includes a TA value identifier of a terminal device measured in at least one candidate cell configuration, and/or a TA value identifier of a terminal device measured in at least one candidate cell configuration is the same as a TA value identifier of a terminal device measured in a current serving cell configuration;
  • the measured TA value is measured and/or calculated by the terminal device through the serving cell TA value and/or compensation value.
  • the processing device provided in the embodiment of the present application can execute the technical solution shown in the above method embodiment, and its implementation principle and beneficial effects are similar, which will not be repeated here.
  • Figure 18 is a second structural diagram of a processing device provided in an embodiment of the present application.
  • the device can be mounted on or is the network device in the above method embodiment.
  • the processing device 120 includes:
  • the device further comprises at least one of the following:
  • the conditional handover configuration includes indication information that the TA value of the candidate cell is zero;
  • the conditional handover configuration includes indication information that the TA value of the candidate cell is the same as that of the serving cell;
  • conditional LTM handover configuration includes an indication that the TA value of the candidate LTM cell is zero;
  • the conditional LTM handover configuration includes indication information that the TA value of the candidate LTM cell is the same as that of the serving cell.
  • the terminal device performs random access-free conditional switching and/or conditional LTM switching based on the first content, including:
  • the terminal device selects or determines a candidate cell that meets the second condition based on the first content
  • the terminal device sends a random access preamble and/or a reference signal to a candidate cell that meets the second condition, and the terminal device performs random access-free conditional switching and/or conditional LTM switching based on the feedback information corresponding to the random access preamble and/or reference signal provided by the serving cell; and/or the terminal device measures and/or calculates the measured TA value of the candidate cell that meets the second condition, and performs random access-free conditional switching and/or conditional LTM switching based on the measured TA value.
  • the device further comprises at least one of the following:
  • the second condition includes a conditional switch execution condition and/or a conditional LTM switch execution condition
  • the feedback information is carried in the random access response and/or the LTM switching command
  • the feedback information includes a candidate cell TA value and/or a candidate LTM cell TA value
  • the downlink control information includes at least one of index information, random access configuration, and reference signal configuration;
  • the terminal device measured TA value identifier is used to trigger the terminal device to measure and/or calculate the measured TA value of the corresponding candidate cell;
  • the measured TA value is measured and/or calculated by the terminal device through the serving cell TA value and/or compensation value.
  • the device further comprises at least one of the following:
  • the conditional handover configuration includes at least one of a conditional handover configuration index, an execution condition, a candidate cell configuration parameter, and a candidate cell TA value;
  • the conditional LTM handover configuration includes at least one of a conditional LTM handover configuration index, an LTM execution condition, a candidate LTM cell configuration parameter, and a candidate LTM cell TA value;
  • the random access response carries at least one of a TA value of at least one candidate cell and/or candidate LTM cell, uplink scheduling, configuration scheduling information, and a radio temporary identification;
  • the LTM handover command carries at least one of the TA value, uplink scheduling, configuration scheduling information, and radio temporary identification of at least one candidate LTM cell;
  • the terminal device In response to the measurement condition being met, the terminal device initiates the terminal device to measure a TA value for at least one candidate cell.
  • the device further comprises at least one of the following:
  • the processing device provided in the embodiment of the present application can execute the technical solution shown in the above method embodiment, and its implementation principle and beneficial effects are similar, which will not be repeated here.
  • the communication device 140 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 140 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.
  • the communication device 140 may include one or more processors 141, which may also be referred to as a processing unit, and may implement certain control or processing functions.
  • the processor 141 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
  • the central processing unit may be used to control the communication device, execute the software program, and process the data of the software program.
  • the processor 141 may also store instructions 143 or data (eg, intermediate data).
  • the instructions 143 may be executed by the processor 141, so that the communication device 140 executes the method corresponding to the terminal device or network device described in the above method embodiment.
  • the communication device 140 may include one or more memories 142, on which instructions 144 may be stored. The instructions may be executed on the processor 141, so that the communication device 140 executes the method described in the above method embodiment.
  • data may also be stored in the memory 142.
  • the processor 141 and the memory 142 may be provided separately or integrated together.
  • the communication device 140 may further include a transceiver 145 and/or an antenna 146.
  • the processor 141 may be referred to as a processing unit, and controls the communication device 140 (terminal device or core network device or wireless access network device).
  • the transceiver 145 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 140.
  • the transceiver 145 can receive the first content; and the processor 141 can perform random access-free conditional switching and/or conditional LTM switching based on the first content.
  • the specific implementation process of the processor 141 and the transceiver 145 can refer to the relevant description of the above embodiments, which will not be repeated here.
  • the transceiver 145 can send the first content so that the terminal device performs random access-free conditional switching and/or conditional LTM switching based on the first content.
  • the specific implementation process of the processor 141 and the transceiver 145 can refer to the relevant description of the above embodiments, which will not be repeated here.
  • the processor 141 and the transceiver 145 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.
  • IC Integrated Circuit
  • RFIC Radio Frequency Integrated Circuit
  • ASIC Application Specific Integrated Circuit
  • PCB Print Circuit Board
  • the processor 141 and the transceiver 145 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.
  • CMOS Complementary Metal Oxide Semiconductor
  • NMOS N Metal-Oxide-Semiconductor
  • PMOS Positive channel Metal Oxide Semiconductor
  • BJT Bipolar Junction Transistor
  • BiCMOS bipolar CMOS
  • SiGe silicon germanium
  • GaAs gallium arsenide
  • the communication device may 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.
  • the terminal device may be implemented in various forms.
  • the terminal device described in this application may include mobile terminals 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.
  • 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 by FIG. 19.
  • the communication device may be an independent device or may be part of a larger device.
  • 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.
  • 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.
  • the communication device in this application can be a terminal device (such as a mobile phone) or a network device (such as a base station).
  • a terminal device such as a mobile phone
  • a network device such as a base station
  • An embodiment of the present application further provides a storage medium, on which a processing program is stored.
  • the processing program is executed by a processor, the steps of the processing method in any of the above embodiments are implemented.
  • the embodiment of the present application further provides a computer program product, which includes a computer program code.
  • a computer program product which includes a computer program code.
  • the computer program code runs on a computer, the computer executes the methods in the above various possible implementation modes.
  • An embodiment of the present application also provides a chip, including 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 various possible implementation modes as described above.
  • a computer program product includes one or more computer instructions.
  • the computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
  • Computer instructions can be stored in a storage medium or transmitted from one storage medium to another storage medium.
  • 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 a computer can access or a data storage device such as a server or data center that includes one or more available media integrated. Available media can be magnetic media (e.g., floppy disk, storage disk, tape), optical media (e.g., DVD), or semiconductor media (e.g., solid-state storage disk Solid State Disk (SSD)), etc.

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Abstract

本申请技术方案通过响应于满足第一条件，执行免随机接入条件切换和/或条件LTM切换，提供了一种支持免随机接入的条件切换和/或条件LTM切换方法，以避免终端设备因执行随机接入导致的服务中断延长。

Description

处理方法、通信设备及存储介质
优先权声明
本申请以在先国际专利申请为基础，谨在当前专利申请中依法要求2023年08月17日申请的、申请号为“PCT/CN2023/113567”、申请名称为“处理方法、通信设备及存储介质”的国际专利申请的优先权，将其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域，尤其涉及一种处理方法、通信设备及存储介质。
背景技术
条件切换(CHO，Conditional HandOver)是一种当候选小区在满足执行条件后与原小区分离再与目标小区建立连线的切换方式。
在构思及实现本申请过程中，发明人发现至少存在如下问题：现有的条件切换及条件LTM(L1/L2 Triggered Mobility，层一/层二触发移动性)切换方式不支持免随机接入，因此终端设备在执行条件切换时需要执行随机接入，可能导致服务中断时间延长。
前面的叙述在于提供一般的背景信息，并不一定构成现有技术。
技术解决方案
本申请的主要目的在于提供一种处理方法、通信设备及存储介质，旨在提供一种支持免随机接入的条件切换和/或条件LTM切换方法，以避免服务中断延长。
为实现上述目的，本申请提供的一种处理方法，可应用于终端设备(如手机)，包括步骤：
S2：响应于满足第一条件，执行免随机接入条件切换和/或条件LTM切换。
可选地，所述执行免随机接入条件切换和/或条件LTM切换，包括：
基于服务小区提供的随机接入前导和/或参考信号对应的反馈信息，执行免随机接入条件切换和/或条件LTM切换；和/或，
基于测量TA值，执行免随机接入条件切换和/或条件LTM切换。
可选地，所述满足第一条件，包括以下至少一项：
确定至少一候选小区满足条件切换执行条件；
确定至少一候选小区满足条件LTM切换执行条件；
接收到下行控制信息；
接收到无线资源控制重配信令；
条件切换配置携带了候选小区TA值为零的指示信息和/或候选小区与服务小区的TA值相同的指示信息；
条件LTM切换配置携带了候选LTM小区TA值为零的指示信息和/或候选LTM小区与服务小区的TA值相同的指示信息。
可选地，所述方法还包括以下至少一项：
反馈信息携带于随机接入响应和/或LTM切换命令；
反馈信息包括候选小区TA值和/或候选LTM小区TA值；
下行控制信息包括索引信息、随机接入配置以及参考信号配置中的至少一项；
无线资源控制重配信令包括服务小区TA值、至少一候选小区的条件切换配置、条件LTM切换配置、终端设备测量TA值标识以及补偿值中的至少一项。
可选地，终端设备测量TA值标识，用于触发终端设备测量和/或计算对应的候选小区的测量TA值。
可选地，测量TA值由终端设备通过服务小区TA值和/或补偿值进行测量和/或计算得到。
可选地，条件切换配置包括条件切换配置索引、执行条件、候选小区配置参数以及候选小区TA值中的至少一项。
可选地，条件LTM切换配置包括条件LTM切换配置索引、LTM执行条件、候选LTM小区配置参数以及候选LTM小区TA值中的至少一项。
可选地，随机接入响应携带至少一候选小区和/或候选LTM小区的TA值、上行调度、配置调度信息以及无线临时识别中的至少一项。
可选地，LTM切换命令携带至少一候选LTM小区的TA值、上行调度、配置调度信息以及无线临时识别中的至少一项。
可选地，索引信息包括条件切换配置索引和/或条件LTM切换配置索引。
可选地，终端设备响应于满足测量条件，对至少一候选小区发起终端设备测量TA值。
可选地，所述方法还包括以下至少一项：
相应候选小区的系统消息根据候选小区配置参数和/或候选LTM小区配置参数获取；
基于候选小区TA值和/或候选LTM小区TA值，执行免随机接入；
基于条件切换配置执行条件切换评估；
基于条件LTM切换配置执行条件LTM切换评估；
应用候选小区配置参数和/或候选LTM小区配置参数；
保存条件切换配置和/或条件LTM切换配置；
测量条件包括至少一候选小区配置终端设备测量TA值标识，和/或，至少一候选小区配置的终端设备测量TA值标识与当前服务小区配置的终端设备测量TA值标识相同；
测量TA值由终端设备通过服务小区TA值和/或补偿值进行测量和/或计算得到。
本申请还提供一种处理方法，可应用于网络设备(如基站)，包括步骤：
S1：发送第一内容，以使终端设备基于第一内容执行免随机接入条件切换和/或条件LTM切换。
可选地，所述第一内容包括以下至少一项：
下行控制信息；
至少一候选小区的条件切换配置；
至少一候选小区的条件LTM切换配置；
服务小区TA值；
终端设备测量TA值标识；
补偿值。
可选地，终端设备测量TA值标识，用于触发终端设备测量和/或计算对应的候选小区的测量TA值。
可选地，测量TA值由终端设备通过服务小区TA值和/或补偿值进行测量和/或计算得到。
可选地，所述方法还包括以下至少一项：
条件切换配置包括候选小区TA值为零的指示信息；
条件切换配置包括候选小区与服务小区的TA值相同的指示信息；
条件LTM切换配置包括候选LTM小区TA值为零的指示信息；
条件LTM切换配置包括候选LTM小区与服务小区的TA值相同的指示信息。
可选地，所述终端设备基于第一内容执行免随机接入条件切换和/或条件LTM切换，包括：
终端设备基于第一内容选取或确定满足第二条件的候选小区；
终端设备向满足第二条件的候选小区发送随机接入前导和/或参考信号，终端设备基于服务小区提供的随机接入前导和/或参考信号对应的反馈信息，执行免随机接入条件切换和/或条件LTM切换；和/或，终端设备测量和/或计算满足第二条件的候选小区的测量TA值，基于测量TA值，执行免随机接入条件切换和/或条件LTM切换。
可选地，所述方法还包括以下至少一项：
第二条件包括条件切换执行条件和/或条件LTM切换执行条件；
反馈信息携带于随机接入响应和/或LTM切换命令；
反馈信息包括候选小区TA值和/或候选LTM小区TA值；
下行控制信息包括索引信息、随机接入配置以及参考信号配置中的至少一项；
终端设备测量TA值标识用于触发终端设备测量和/或计算对应的候选小区的测量TA值；
测量TA值由终端设备通过服务小区TA值和/或补偿值进行测量和/或计算得到。
可选地，条件切换配置包括条件切换配置索引、执行条件、候选小区配置参数以及候选小区TA值中的至少一项。
可选地，条件LTM切换配置包括条件LTM切换配置索引、LTM执行条件、候选LTM小区配置参数以及候选LTM小区TA值中的至少一项。
可选地，随机接入响应携带至少一候选小区和/或候选LTM小区的TA值、上行调度、配置调度信息以及无线临时识别中的至少一项。
可选地，LTM切换命令携带至少一候选LTM小区的TA值、上行调度、配置调度信息以及无线临时识别中的至少一项。
可选地，索引信息包括条件切换配置索引和/或条件LTM切换配置索引。
可选地，终端设备响应于满足测量条件，对至少一候选小区发起终端设备测量TA值。
可选地，所述方法还包括以下至少一项：
获取候选小区提供的候选小区TA值、补偿值、上行传输时延、上行调度、配置调度信息以及无线临时识别中的至少一项；
根据上行传输时延计算候选小区TA值；
接收候选小区发送的随机接入前导和/或参考信号对应的反馈信息；
发送随机接入前导和/或参考信号对应的反馈信息至终端设备。
本申请还提供一种通信设备，包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的处理程序，所述处理程序被所述处理器执行时实现如上任一所述的处理方法的步骤。
本申请中的通信设备，可以为终端设备(如手机)，也可以为网络设备(如基站)，具体所指，需要结合上下文加以明确。
本申请还提供一种存储介质，所述存储介质上存储有计算机程序，所述计算机程序被处理器执行时实现如上任一所述的处理方法的步骤。
本申请技术方案通过响应于满足第一条件，执行免随机接入条件切换和/或条件LTM切换，提供了一种支持免随机接入的条件切换和/或条件LTM切换方法，以避免终端设备因执行随机接入导致的服务中断延长。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本申请的实施例，并与说明书一起用于解释本申请的原理。为了更清楚地说明本申请实施例的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，对于本领域普通技术人员而言，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为实现本申请各个实施例的一种移动终端的硬件结构示意图；
图2为本申请实施例提供的一种通信网络系统架构图；
图3为本申请提供的一种控制器140的硬件结构示意图；
图4为本申请提供的一种网络节点150的硬件结构示意图；
图5为根据第一实施例示出的处理方法的流程示意图；
图6为现有技术中的条件切换流程示意图；
图7为本发明实施例中根据第二实施例示出的交互流程示意图；
图8为本发明实施例中根据第三实施例示出的交互流程示意图；
图9为本发明实施例中根据第四实施例示出的交互流程示意图；
图10为本发明实施例中根据第五实施例示出的交互流程示意图；
图11为本发明实施例中根据第六实施例示出的交互流程示意图；
图12为本发明实施例中根据第七实施例示出的交互流程示意图；
图13为本发明实施例中根据第八实施例示出的交互流程示意图；
图14为本发明实施例中根据第九实施例示出的交互流程示意图；
图15为本发明实施例中根据第十一实施例示出的交互流程示意图；
图16为根据第十二实施例示出的处理方法的流程示意图；
图17为本申请实施例提供的处理装置的结构示意图一；
图18为本申请实施例提供的处理装置的结构示意图二；
图19为本申请实施例提供的通信设备的结构示意图。
本申请目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。通过上述附图，已示出本申请明确的实施例，后文中将有更详细的描述。这些附图和文字描述并不是为了通过任何方式限制本申请构思的范围，而是通过参考特定实施例为本领域技术人员说明本申请的概念。
本申请的实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本申请相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本申请的一些方面相一致的装置和方法的例子。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素，和/或，本申请不同实施例中具有同样命名的部件、特征、要素可能具有相同含义，也可能具有不同含义，其具体含义需以其在该具体实施例中的解释或者进一步结合该具体实施例中上下文进行确定。
应当理解，尽管在本文可能采用术语第一、第二、第三等来描述各种信息，但这些信息不应限于这些术语。这些术语仅用来将同一类型的信息彼此区分开。例如，在不脱离本文范围的情况下，第一信息也可以被称为第二信息，类似地，第二信息也可以被称为第一信息。取决于语境，如在此所使用的词语"如果"可以被解释成为"在……时"或"当……时"或"响应于确定"。再者，如同在本文中所使用的，单数形式“一”、“一个”和“该”旨在也包括复数形式，除非上下文中有相反的指示。应当进一步理解，术语“包含”、“包括”表明存在所述的特征、步骤、操作、元件、组件、项目、种类、和/或组，但不排除一个或多个其他特征、步骤、操作、元件、组件、项目、种类、和/或组的存在、出现或添加。本申请使用的术语“或”、“和/或”、“包括以下至少一个”等可被解释为包括性的，或意味着任一个或任何组合。例如，“包括以下至少一个：A、B、C”意味着“以下任一个：A；B；C；A和B；A和C；B和C；A和B和C”，再如，“A、B或C”或者“A、B和/或C”意味着“以下任一个：A；B；C；A和B；A和C；B和C；A和B和C”。仅当元件、功能、步骤或操作的组合在某些方式下内在地互相排斥时，才会出现该定义的例外。
应该理解的是，虽然本申请实施例中的流程图中的各个步骤按照箭头的指示依次显示，但是这些步骤并不是必然按照箭头指示的顺序依次执行。除非本文中有明确的说明，这些步骤的执行并没有严格的顺序限制，其可以以其他的顺序执行。而且，图中的至少一部分步骤可以包括多个子步骤或者多个阶段，这些子步骤或者阶段并不必然是在同一时刻执行完成，而是可以在不同的时刻执行，其执行顺序也不必然是依次进行，而是可以与其他步骤或者其他步骤的子步骤或者阶段的至少一部分轮流或者交替地执行。
取决于语境，如在此所使用的词语“如果”、“若”可以被解释成为“在……时”或“当……时”或“响应于确定”或“响应于检测”。类似地，取决于语境，短语“如果确定”或“如果检测(陈述的条件或事件)”可以被解释成为“当确定时”或“响应于确定”或“当检测(陈述的条件或事件)时”或“响应于检测(陈述的条件或事件)”。
需要说明的是，在本文中，采用了诸如S1、S2等步骤代号，其目的是为了更清楚简要地表述相应内容，不构成顺序上的实质性限制，本领域技术人员在具体实施时，可能会先执行S2后执行S1等，但这些均应在本申请的保护范围之内。
应当理解，此处所描述的具体实施例仅仅用以解释本申请，并不用于限定本申请。
在后续的描述中，使用用于表示元件的诸如“模块”、“部件”或者“单元”的后缀仅为了有利于本申请的说明，其本身没有特定的意义。因此，“模块”、“部件”或者“单元”可以混合地使用。
本申请中的通信设备，可以是终端设备(如手机)，也可以是网络设备(如基站)，具体所指，需要根据上下文加以明确。
终端设备可以以各种形式来实施。例如，本申请中描述的终端设备可以包括诸如手机、平板电脑、笔记本电脑、掌上电脑、个人数字助理(Personal Digital Assistant，PDA)、便捷式媒体播放器(Portable Media Player，PMP)、导航装置、可穿戴设备、智能手环、计步器等智能终端设备，以及诸如数字TV、台式计算机等固定终端设备。
后续描述中将以移动终端为例进行说明，本领域技术人员将理解的是，除了特别用于移动目的的元件之外，根据本申请的实施方式的构造也能够应用于固定类型的终端设备。
请参阅图1，其为实现本申请各个实施例的一种移动终端的硬件结构示意图，该移动终端100可以包括：RF(Radio Frequency，射频)单元101、WiFi模块102、音频输出单元103、A/V(音频/视频)输入单元104、传感器105、显示单元106、用户输入单元107、接口单元108、存储器109、处理器110、以及电源111等部件。本领域技术人员可以理解，图1中示出的移动终端结构并不构成对移动终端的限定，移动终端可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置。
下面结合图1对移动终端的各个部件进行具体的介绍：
射频单元101可用于收发信息或通话过程中，信号的接收和发送，具体的，将基站的下行信息接收后， 给处理器110处理；另外，将上行的数据发送给基站。通常，射频单元101包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器、双工器等。和/或，射频单元101还可以通过无线通信与网络和其他设备通信。上述无线通信可以使用任一通信标准或协议，包括但不限于GSM(Global System of Mobile communication，全球移动通讯系统)、GPRS(General Packet Radio Service，通用分组无线服务)、CDMA2000(Code Division Multiple Access 2000，码分多址2000)、WCDMA(Wideband Code Division Multiple Access,宽带码分多址)、TD-SCDMA(Time Division-Synchronous Code Division Multiple Access，时分同步码分多址)、FDD-LTE(Frequency Division Duplexing-Long Term Evolution，频分双工长期演进)、TDD-LTE(Time Division Duplexing-Long Term Evolution，分时双工长期演进)、5G和6G等。
WiFi属于短距离无线传输技术，移动终端通过WiFi模块102可以帮助用户收发电子邮件、浏览网页和访问流式媒体等，它为用户提供了无线的宽带互联网访问。虽然图1示出了WiFi模块102，但是可以理解的是，其并不属于移动终端的必须构成，完全可以根据需要在不改变发明的本质的范围内而省略。
音频输出单元103可以在移动终端100处于呼叫信号接收模式、通话模式、记录模式、语音识别模式、广播接收模式等等模式下时，将射频单元101或WiFi模块102接收的或者在存储器109中存储的音频数据转换成音频信号并且输出为声音。而且，音频输出单元103还可以提供与移动终端100执行的特定功能相关的音频输出(例如，呼叫信号接收声音、消息接收声音等等)。音频输出单元103可以包括扬声器、蜂鸣器等等。
A/V输入单元104用于接收音频或视频信号。A/V输入单元104可以包括图形处理器(Graphics Processing Unit，GPU)1041和麦克风1042，图形处理器1041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。处理后的图像帧可以显示在显示单元106上。经图形处理器1041处理后的图像帧可以存储在存储器109(或其它存储介质)中或者经由射频单元101或WiFi模块102进行发送。麦克风1042可以在电话通话模式、记录模式、语音识别模式等等运行模式中经由麦克风1042接收声音(音频数据)，并且能够将这样的声音处理为音频数据。处理后的音频(语音)数据可以在电话通话模式的情况下转换为可经由射频单元101发送到移动通信基站的格式输出。麦克风1042可以实施各种类型的噪声消除(或抑制)算法以消除(或抑制)在接收和发送音频信号的过程中产生的噪声或者干扰。
移动终端100还包括至少一种传感器105，比如光传感器、运动传感器以及其他传感器。可选地，光传感器包括环境光传感器及接近传感器，可选地，环境光传感器可根据环境光线的明暗来调节显示面板1061的亮度，接近传感器可在移动终端100移动到耳边时，关闭显示面板1061和/或背光。作为运动传感器的一种，加速计传感器可检测各个方向上(一般为三轴)加速度的大小，静止时可检测出重力的大小及方向，可用于识别手机姿态的应用(比如横竖屏切换、相关游戏、磁力计姿态校准)、振动识别相关功能(比如计步器、敲击)等；至于手机还可配置的指纹传感器、压力传感器、虹膜传感器、分子传感器、陀螺仪、气压计、湿度计、温度计、红外线传感器等其他传感器，在此不再赘述。
显示单元106用于显示由用户输入的信息或提供给用户的信息。显示单元106可包括显示面板1061，可以采用液晶显示器(Liquid Crystal Display，LCD)、有机发光二极管(Organic Light-Emitting Diode,OLED)等形式来配置显示面板1061。
用户输入单元107可用于接收输入的数字或字符信息，以及产生与移动终端的用户设置以及功能控制有关的键信号输入。可选地，用户输入单元107可包括触控面板1071以及其他输入设备1072。触控面板1071，也称为触摸屏，可收集用户在其上或附近的触摸操作(比如用户使用手指、触笔等任何适合的物体或附件在触控面板1071上或在触控面板1071附近的操作)，并根据预先设定的程式驱动相应的连接装置。触控面板1071可包括触摸检测装置和触摸控制器两个部分。可选地，触摸检测装置检测用户的触摸方位，并检测触摸操作带来的信号，将信号传送给触摸控制器；触摸控制器从触摸检测装置上接收触摸信息，并将它转换成触点坐标，再送给处理器110，并能接收处理器110发来的命令并加以执行。和/或，可以采用电阻式、电容式、红外线以及表面声波等多种类型实现触控面板1071。除了触控面板1071，用户输入单元107还可以包括其他输入设备1072。可选地，其他输入设备1072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆等中的一种或多种，具体此处不做限定。
可选地，触控面板1071可覆盖显示面板1061，当触控面板1071检测到在其上或附近的触摸操作后，传送给处理器110以确定触摸事件的类型，随后处理器110根据触摸事件的类型在显示面板1061上提供相应的视觉输出。虽然在图1中，触控面板1071与显示面板1061是作为两个独立的部件来实现移动终端的输入和输出功能，但是在某些实施例中，可以将触控面板1071与显示面板1061集成而实现移动终端的输入和输出功能，具体此处不做限定。
接口单元108用作至少一个外部装置与移动终端100连接可以通过的接口。例如，外部装置可以包括有线或无线头戴式耳机端口、外部电源(或电池充电器)端口、有线或无线数据端口、存储卡端口、用于连接具有识别模块的装置的端口、音频输入/输出(I/O)端口、视频I/O端口、耳机端口等等。接口单元108可以用于接收来自外部装置的输入(例如，数据信息、电力等等)并且将接收到的输入传输到移动终端100内的一个或多个元件或者可以用于在移动终端100和外部装置之间传输数据。
存储器109可用于存储软件程序以及各种数据。存储器109可主要包括存储程序区和存储数据区，可选地，存储程序区可存储操作系统、至少一个功能所需的应用程序(比如声音播放功能、图像播放功能等)等；存储数据区可存储根据手机的使用所创建的数据(比如音频数据、电话本等)等。和/或，存储器109可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件、或其他易失性固态存储器件。
处理器110是移动终端的控制中心，利用各种接口和线路连接整个移动终端的各个部分，通过运行或执行存储在存储器109内的软件程序和/或模块，以及调用存储在存储器109内的数据，执行移动终端的各种功能和处理数据，从而对移动终端进行整体监控。处理器110可包括一个或多个处理单元；优选的，处理器110可集成应用处理器和调制解调处理器，可选地，应用处理器主要处理操作系统、用户界面和应用程序等，调制解调处理器主要处理无线通信。可以理解的是，上述调制解调处理器也可以不集成到处理器110中。
移动终端100还可以包括给各个部件供电的电源111(比如电池)，优选的，电源111可以通过电源管理系统与处理器110逻辑相连，从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。
尽管图1未示出，移动终端100还可以包括蓝牙模块等，在此不再赘述。
为了便于理解本申请实施例，下面对本申请的移动终端所基于的通信网络系统进行描述。
请参阅图2，图2为本申请实施例提供的一种通信网络系统架构图，该通信网络系统为通用移动通信技术的NR(New Radio,新空口)系统，该NR系统包括依次通讯连接的UE(User Equipment，用户设备)201，E-UTRAN(Evolved UMTS Terrestrial Radio Access Network，演进式UMTS陆地无线接入网)202，EPC(Evolved Packet Core，演进式分组核心网)203和运营商的IP业务204。
可选地，UE201可以是上述终端设备100，此处不再赘述。
E-UTRAN202包括eNodeB2021和其它eNodeB2022等。可选地，eNodeB2021可以通过回程(backhaul)(例如X2接口)与其它eNodeB2022连接，eNodeB2021连接到EPC203，eNodeB2021可以提供UE201到EPC203的接入。
EPC203可以包括MME(Mobility Management Entity，移动性管理实体)2031，HSS(Home Subscriber Server，归属用户服务器)2032，其它MME2033，SGW(Serving Gate Way，服务网关)2034，PGW(PDN Gate Way，分组数据网络网关)2035和PCRF(Policy and Charging Rules Function，政策和资费功能实体)2036等。可选地，MME2031是处理UE201和EPC203之间信令的控制节点，提供承载和连接管理。HSS2032用于提供一些寄存器来管理诸如归属位置寄存器(图中未示)之类的功能，并且保存有一些有关服务特征、数据速率等用户专用的信息。所有用户数据都可以通过SGW2034进行发送，PGW2035可以提供UE 201的IP地址分配以及其它功能，PCRF2036是业务数据流和IP承载资源的策略与计费控制策略决策点，它为策略与计费执行功能单元(图中未示)选择及提供可用的策略和计费控制决策。
IP业务204可以包括因特网、内联网、IMS(IP Multimedia Subsystem，IP多媒体子系统)或其它IP业务等。
虽然上述以LTE系统为例进行了介绍，但本领域技术人员应当知晓，本申请不仅仅适用于LTE系统，也可以适用于其他无线通信系统，例如GSM、CDMA2000、WCDMA、TD-SCDMA、5G以及未来新的网络系统(如6G)等，此处不做限定。
图3为本申请提供的一种控制器140的硬件结构示意图。该控制器140包括：存储器1401和处理器1402，存储器1401用于存储程序指令，处理器1402用于调用存储器1401中的程序指令执行上述方法实施例一中控制器所执行的步骤，其实现原理以及有益效果类似，此处不再进行赘述。
可选地，上述控制器还包括通信接口1403，该通信接口1403可以通过总线1404与处理器1402连接。处理器1402可以控制通信接口1403来实现控制器140的接收和发送的功能。
图4为本申请提供的一种网络节点150的硬件结构示意图。该网络节点150包括：存储器1501和处理器1502，存储器1501用于存储程序指令，处理器1502用于调用存储器1501中的程序指令执行上述方法实施例一中首节点所执行的步骤，其实现原理以及有益效果类似，此处不再进行赘述。
可选地，上述控制器还包括通信接口1503，该通信接口1503可以通过总线1504与处理器1502连接。处理器1502可以控制通信接口1503来实现网络节点150的接收和发送的功能。
上述以软件功能模块的形式实现的集成的模块，可以存储在一个计算机可读取存储介质中。上述软件功能模块存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)或处理器(英文：processor)执行本申请各个实施例方法的部分步骤。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行计算机程序指令时，全部或部分地产生按照本申请实施例的流程或功能。计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。计算机指令可以存储在存储介质中，或者从一个存储介质向另一个存储介质传输，例如，计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘solid state disk，SSD)等。
基于上述移动终端硬件结构以及通信网络系统，提出本申请各个实施例。
第一实施例
参照图5，图5为根据第一实施例示出的处理方法的流程示意图，本申请实施例的处理方法可应用于终端设备(如手机)，包括步骤：
S2：响应于满足第一条件，执行免随机接入条件切换和/或条件LTM切换。
参照图6，图6为现有技术中的条件切换流程示意图，如图6所示，传统的条件切换(CHO，Conditional HandOver)是一种当候选小区在满足执行条件后与原小区分离(Detach)再与目标小区建立连线的切换方式，且当前条件切换方式不支持免随机接入，因此切换过程中任一环节失败(例如:随机接入失败)将导致产生服务中断时延。例如：当终端评估执行条件并至少一个候选小区满足执行条件，终端获取候选小区系统消息并确认可以发送随机接入前导的实际(RO，RACH Occassion)，因此导致切换时延(T_IU)，其中，IU指的是中断不确定性(Interruption Uncertainly)，和/或，发送随机接入前导后等待接收随机接入响应的时间(T_RAR)，和/或，基于随机接入响应获得的上行调度至发送首个上行数据的时延(T_FirstData)。
和/或，当前条件切换执行免随机接入仍未有具体方式，例如：如何提前获取目标小区时间提前(TA，Timing Advance)值。和/或，当前，条件层一/层二触发移动性(LTM，L1/L2Triggered Mobility)切换仍没有明确的执行条件。
本申请实施例中通过引入条件切换和/或条件LTM切换提前获取目标小区TA值的方式，提供了一种支持免随机接入的条件切换和/或条件LTM切换方法，可以减少切换造成的中断时延。
可选地，响应于满足第一条件，执行免随机接入条件切换和/或条件LTM切换，可以为：
响应于满足第一条件，向至少一候选小区发送随机接入前导和/或参考信号；
基于服务小区提供的随机接入前导和/或参考信号对应的反馈信息，执行免随机接入条件切换和/或条件LTM切换。
可选地，响应于满足第一条件，执行免随机接入条件切换和/或条件LTM切换，可以为：
响应于满足第一条件，测量和/或计算候选小区的测量TA值；
基于测量TA值，执行免随机接入条件切换和/或条件LTM切换。
可选地，所述满足第一条件，包括以下至少一项：
确定至少一候选小区满足条件切换执行条件；
确定至少一候选小区满足条件LTM切换执行条件；
接收到下行控制信息；
接收到无线资源控制重配信令；
条件切换配置携带了候选小区TA值为零的指示信息和/或候选小区与服务小区的TA值相同的指示信息；
条件LTM切换配置携带了候选LTM小区TA值为零的指示信息和/或候选LTM小区与服务小区的TA值相同的指示信息。
可选地，终端设备可以基于接收的预配置信息执行条件切换评估，当至少一候选小区满足条件切换执行条件，则对候选小区发送随机接入前导，并在服务小区接收随机接入响应和/或LTM命令，应用目标小区配置参数并依据目标小区TA值执行免随机接入条件切换。
可选地，终端设备可以基于接收的预配置信息执行条件LTM切换评估，当至少一候选小区满足条件LTM切换执行条件，则对候选小区发送随机接入前导，并在服务小区接收随机接入响应和/或LTM命令，应用目标小区配置参数并依据目标小区TA值执行免随机接入条件LTM切换。
可选地，终端设备可以先接收预配置信息，再通过PDCCH(Physical Downlink Control CHannel，物理下行控制信道)order触发随机接入以提前获取目标小区TA值。
可选地，终端设备还可以先通过PDCCH order触发随机接入提前获取目标小区TA值，再根据目标小区TA值以及预配置信息执行免随机接入条件切换和/或条件LTM切换至目标小区。
可选地，终端设备接收的预配置信息中可以包括目标小区TA指示信息，若目标小区TA指示信息为候选小区TA值为零的指示信息和/或候选小区与服务小区的TA值相同的指示信息，则终端设备基于预配置信息执行条件切换评估，当至少一个目标小区满足执行条件，则应用目标小区配置参数并通过目标小区TA指示信息执行免随机接入条件切换至目标小区。
可选地，若目标小区TA指示信息为候选LTM小区TA值为零的指示信息和/或候选LTM小区与服务小区的TA值相同的指示信息，则终端设备基于预配置信息执行条件LTM切换评估，当至少一个目标小区满足执行条件，则应用目标小区配置参数，并通过目标小区TA指示信息执行免随机接入条件LTM切换至目标小区。
可选地，终端设备可以基于接收的预配置信息执行条件切换评估，当至少一候选小区满足条件切换执行条件，则对候选小区发送上行参考信号(SRS，Sounding Reference Signal)，并在服务小区接收随机接入响应和/或LTM命令，应用目标小区配置参数并依据目标小区TA值执行免随机接入条件切换。
可选地，终端设备可以基于接收的预配置信息执行条件LTM切换评估，当至少一候选小区满足条件LTM切换执行条件，则对候选小区发送上行参考信号，并在服务小区接收随机接入响应和/或LTM命令，应用目标小区配置参数并依据目标小区TA值执行免随机接入条件LTM切换。
可选地，终端设备接收网络设备下发的预配置信息和PDCCH order触发的上行参考信号发送请求，随即对相应目标小区发送SRS，并在原小区接收目标小区反馈的TA信息。终端设备基于目标小区TA值以及预配置信息执行条件切换评估，当至少一个目标小区满足执行条件，则应用目标小区配置参数，则通过目标小区TA值执行免随机接入条件切换至目标小区。
可选地，终端设备接收网络设备下发的预配置信息和PDCCH order触发的上行参考信号发送请求，随即对相应目标小区发送SRS，并在原小区接收目标小区反馈的TA信息。终端设备基于目标小区TA值以及预配置信息执行条件LTM切换评估，当至少一个目标小区满足执行条件，则应用目标小区配置参数，则通过目标小区TA值执行免随机接入条件LTM切换至目标小区。
可选地，终端设备可以先通过PDCCH order触发SRS发送以提前获取目标小区TA值，再提供目标小区TA值以及预配置信息。
可选地，终端设备还可以依据预配置信息获取目标小区系统消息，并依据系统消息携带随机接入参数发送随机接入前导以提前获取目标小区TA值。
可选地，终端设备可以基于接收的预配置信息执行条件切换评估，当至少一候选小区满足条件切换执行条件，则可以对候选小区发起终端设备测量TA值，并依据目标小区的测量TA值执行免随机接入条件切换。
可选地，终端设备可以基于接收的预配置信息执行条件LTM切换评估，当至少一候选小区满足条件LTM切换执行条件，则可以对候选小区发起终端设备测量TA值，并依据目标小区的测量TA值执行免随机接入条件LTM切换。
可选地，反馈信息携带于随机接入响应和/或LTM切换命令。
可选地，反馈信息包括候选小区TA值和/或候选LTM小区TA值。
可选地，下行控制信息包括索引信息、随机接入配置以及参考信号配置中的至少一项。
可选地，无线资源控制重配信令包括服务小区TA值、至少一候选小区的条件切换配置、条件LTM切换配置、终端设备测量TA值标识以及补偿值中的至少一项。
可选地，终端设备测量TA值标识用于触发终端设备测量和/或计算对应的候选小区的测量TA值。
可选地，测量TA值由终端设备通过服务小区TA值和/或补偿值进行测量和/或计算得到。
可选地，条件切换配置包括条件切换配置索引、执行条件、候选小区配置参数以及候选小区TA值中的至少一项。
可选地，条件LTM切换配置包括条件LTM切换配置索引、LTM执行条件、候选LTM小区配置参数以及候选LTM小区TA值中的至少一项。
可选地，随机接入响应携带至少一候选小区和/或候选LTM小区的TA值、上行调度、配置调度信息以及无线临时识别中的至少一项。
可选地，LTM切换命令携带至少一候选LTM小区的TA值、上行调度、配置调度信息以及无线临时识别中的至少一项。
可选地，索引信息包括条件切换配置索引和/或条件LTM切换配置索引。
可选地，终端设备响应于满足测量条件，对至少一候选小区发起终端设备测量TA值。
可选地，相应候选小区的系统消息根据候选小区配置参数和/或候选LTM小区配置参数执行获取。
可选地，系统消息包括随机接入参数和/或参考信号参数。
本实施例通过上述方案，引入了条件切换和/或条件LTM切换提前获取目标小区TA值方式。
可选地，所述免随机接入条件切换包括：执行条件切换过程中不执行随机接入流程，在满足切换条件后直接切换至目标小区，例如：候选小区TA值为零或是候选小区TA值与当前服务小区有相同TA值；和/或，执行条件切换之前，提前发送随机接入前导和/或参考信号，并在服务小区获得候选小区TA值后，在满足切换条件后依据获取的TA值直接切换至目标小区。
可选地，所述免随机接入条件LTM切换包括：执行条件LTM切换过程中不执行随机接入流程，在满足LTM切换条件后直接切换至目标小区，例如：候选LTM小区TA值为零或是候选LTM小区TA值与当前服务小区有相同TA值；和/或，执行条件LTM切换之前，提前发送随机接入前导和/或参考信号，并在服务小区获得候选LTM小区TA值后，在满足LTM切换条件后依据获取的TA值直接切换至目标小区。
本实施例通过上述方案，明确了条件LTM切换的执行条件；和/或，通过相应TA值执行免随机接入。
本实施例通过上述方案，具体通过响应于满足第一条件，执行免随机接入条件切换和/或条件LTM切换，提供了一种支持免随机接入的条件切换和/或条件LTM切换方法，以避免终端设备因执行随机接入导致的服务中断延长；和/或，在切换前提前执行上行同步，有助于降低切换时延。
第二实施例
在本申请第一实施例的基础上，本实施例进一步公开了前述实施例中的处理方法。
参照图7，图7为本发明实施例中根据第二实施例示出的交互流程示意图，如图7所示，终端设备可以基于接收的预配置信息，发送随机接入前导以提前获取目标小区TA值。
可选地，终端设备上报测量报告(MR，Measurement Report)，可选地，测量报告为层三(L3，Layer3)测量报告。
可选地，源小区(包括或就是第一网络设备)获取候选小区配置，包括：候选小区配置参数和/或随机接入参数。
可选地，候选小区(包括或就是第二网络设备)可以为候选LTM小区。
可选地，候选LTM小区配置包括：候选LTM小区配置参数和/或随机接入参数。
可选地，源小区发送条件切换配置，包括：条件切换配置索引(Conditional handover configuration index)、执行条件(Execution condition)以及候选小区配置中的至少一项。
可选地，终端设备接收到条件切换配置后本地保存。
可选地，条件切换配置通过RRC((Radio Resource Control，无线资源控制)重配(RRCReconfiguration)信令发送。
可选地，源小区可以发送至少一个候选小区的条件切换配置，并通过条件切换配置索引区分候选小区。
可选地，所述条件切换还可以是条件LTM切换。
可选地，条件LTM切换配置包括：条件LTM切换配置索引(Conditional LTM configuration index)、LTM执行条件(LTM execution condition)以及候选LTM小区配置参数中的至少一项。
可选地，源小区还可以发送通用(Common)随机接入参数，用于后续条件LTM切换。
可选地，终端设备发送配置确认信息。
可选地，配置确认通过RRC重配完成(RRCReconfigurationComplete)信令发送。
可选地，终端设备依据执行条件评估候选小区，当至少一个候选小区满足执行条件，则对其发送随机接入前导。
可选地，终端设备可以依据LTM执行条件评估候选小区，当至少一个候选LTM小区满足执行条件，则对其发送随机接入前导。
可选地，终端设备在发送随机接入前导后回到源小区接收响应信息。
可选地，满足执行条件和/或LTM执行条件包括：信号强度满足门限值，和/或，信号强度满足门限值且维持一段时间。
可选地，候选小区接收到终端设备发送的随机接入前导，计算相应TA值，并通过信令发送响应信息至源小区。
可选地，候选小区还可以提供上行调度(UL Grant)、配置调度(CG，Configured Grant)信息以及无线临时识别(RNTI，Radio Network Temporary Identifier)中的至少一项给源小区。需要说明的是，发送的响应信息可以是基站间任一交互信令，本申请实施例中对此不予以限定。
可选地，源小区通过随机接入响应(RAR，Random Acces Response)携带候选小区TA值和/或发送至终端设备。
可选地，如果终端设备在发送随机接入前导的过程中对至少一个候选小区和/或候选LTM小区发送了随机接入前导，则随机接入响应可以携带至少一个候选小区和/或候选LTM小区的TA值。
可选地，网络设备通过发送至少一个RAR携带至少一个候选小区和/或候选LTM小区的TA值。
可选地，随机接入响应还可以携带候选小区上行调度、配置调度信息以及无线临时识别中的至少一项。
可选地，终端设备在接收到候选小区TA值后，启动相应时间提前计时器(TAT，Timing Advance Timer)。
可选地，源小区还可以通过LTM切换命令携带至少一个候选LTM小区TA值。
可选地，所述LTM切换命令还可以携带候选LTM小区上行调度、配置调度信息以及无线临时识别中的至少一项。
可选地，所述LTM切换命令通过MAC(Media Access Control，媒体接入控制)层信令携带，例如：MAC subheader和/或MAC CE(Control Element)。
可选地，终端设备基于接收到的候选小区TA值和/或候选LTM小区TA值发起免随机接入(RACH-Less)条件切换和/或条件LTM切换。
可选地，终端设备对候选小区执行条件和/或LTM执行条件实施评估，当至少一个候选小区仍满足执行条件或LTM执行条件且相应TAT仍在运行中，则发起免随机接入条件切换或条件LTM切换。
可选地，终端设备应用相应候选小区配置参数或候选LTM小区配置参数。
可选地，当TAT已经超时，则执行随机接入条件切换或条件LTM切换。
可选地，终端设备对目标小区发送上行数据和/或RRC重配完成信令。
可选地，目标小区响应终端设备发送的上行数据和/或RRC重配完成信令，发送确认信息和/或RRC重配完成确认，完成条件切换或条件LTM切换。
可选地，RRC重配完成确认可以是自动重传请求确认(ARQ ACK，Automatic Repeat request acknowledgement)和/或自动混合重传请求确认(HARQ-ACK，Hybrid automatic repeat request acknowledgement)，例如：终端设备发送RRC重配完成信令，接收候选小区反馈的ARQ ACK和/或HARQ-ACK、终端设备发送首个上行数据，接收候选小区反馈的ARQ ACK和/或HARQ-ACK。
可选地，终端设备在接收到候选小区确认信息后即完成条件切换或条件LTM切换，并将候选小区作为服务小区(Serving Cell)。
可选地，终端设备在完成条件切换或条件LTM切换后仍保存条件切换配置和/或条件LTM切换配置。
本实施例通过上述方案，具体通过网络设备预配置随机接入参数，使终端设备可以提前执行上行同步和/或提前获取目标小区TA值，并执行免随机接入条件切换和/或条件LTM切换，免去测量上报和/或切换信令下发，和/或执行提前上行同步，减少信令开销和/或加速切换流程和/或减少服务中断时延，和/或明确上行免随机接入条件切换和/或条件LTM切换流程。
第三实施例
在本申请前述任一实施例的基础上，本实施例进一步公开了前述实施例中的处理方法。
参照图8，图8为本发明实施例中根据第三实施例示出的交互流程示意图，如图8所示，终端设备可以先接收预配置信息，再通过PDCCH order触发随机接入以提前获取目标小区TA值。
可选地，终端设备上报测量报告，可选地，测量报告为层三测量报告。
可选地，源小区获取候选小区配置，包括：候选小区配置参数和/或随机接入参数。
可选地，候选小区可以为候选LTM小区。
可选地，候选LTM小区配置包括：候选LTM小区配置参数和/或随机接入参数。
可选地，获取候选小区配置和/或候选LTM小区配置可以是通过基站间任一交互信令携带，包括但不限于：UL RRC MESSAGE TRANSFER、HANDOVER REQUEST、HANDOVER REQUEST ACKNOWLEDGE、UE CONTEXT MODIFICATION REQUEST、UE CONTEXT MODIFICATION RESPONSE，本申请实施例中对此不予以限定。
可选地，源小区发送条件切换配置，包括：条件切换配置索引、执行条件以及候选小区配置中的至少一项。
可选地，终端设备接收到条件切换配置后本地保存。
可选地，条件切换配置通过RRC重配信令发送。
可选地，源小区可以发送至少一个候选小区的条件切换配置，并通过条件切换配置索引区分候选小区。
可选地，所述条件切换还可以是条件LTM切换。
可选地，所述条件LTM切换配置包括：条件LTM切换配置索引、LTM执行条件以及候选LTM小区配置参数中的至少一项。
可选地，源小区还可以发送通用随机接入参数，用于后续LTM切换。
可选地，终端设备发送配置确认信息。
可选地，配置确认信息通过RRC重配完成信令发送。
可选地，网络设备通过PDCCH下发DCI要求终端设备执行PDCCH-order触发的随机接入。
可选地，所述DCI携带索引信息和/或随机接入配置。
可选地，所述DCI携带至少一个索引信息和/或随机接入配置。
可选地，所述索引信息为条件切换配置索引和/或条件LTM切换配置索引。
可选地，终端设备在接收到PDCCH-odrer触发的随机接入控制信息后，依据索引信息以及条件切换配置确定候选小区以及随机接入参数，并依据随机接入参数对候选小区发送随机接入前导。
可选地，终端设备依据随机接入配置对候选小区发送随机接入前导。
可选地，终端设备依据索引信息以及条件切换配置确定候选小区以及随机接入参数，终端设备再依据随机接入参数和随机接入配置发送随机接入前导。
可选地，终端设备在发送随机接入前导后在源小区接收响应信息。
可选地，终端设备依据至少一个索引信息和/或随机接入配置对至少一个候选小区发送随机接入前导。
可选地，终端设备依据至少一个DCI触发的PDCCH-order随机接入对至少一个候选小区发送随机接入前导。
可选地，终端设备依据所述DCI携带索引类型确定发送随机接入前导的候选小区，例如：索引信息为条件切换配置索引，则对候选小区发送随机接入前导。
可选地，若索引信息为条件LTM切换配置索引，则对候选LTM小区发送随机接入前导。
可选地，候选小区接收到终端设备发送的随机接入前导，计算相应TA值，并通过信令发送响应信息给源小区。
可选地，候选小区还可以提供上行调度、配置调度信息以及无线临时识别中的至少一项给源小区。
可选地，候选小区发送响应信息采用的信令可以是基站间任一交互信令，本申请实施例中对此不予以限定。
可选地，源小区通过随机接入响应携带候选小区TA值发并送给终端设备。
可选地，如果终端在发送随机接入前导的过程中对至少一个候选小区和/或候选LTM小区发送随机接入前导，则随机接入响应可以携带至少一个候选小区和/或候选LTM小区TA值。
可选地，网络设备通过发送至少一个RAR携带至少一个候选小区和/或候选LTM小区TA值。
可选地，随机接入响应还可以携带候选小区和/或候选LTM小区上行调度、配置调度信息以及无线临时识别中的至少一项。
可选地，终端设备在接收到候选小区和/或候选LTM小区TA值后，启动相应时间提前计时器。
可选地，源小区还可以通过LTM切换命令携带至少一个候选LTM小区TA值。
可选地，所述LTM切换命令还可以携带候选LTM小区上行调度、配置调度信息和/或无线临时识别中的至少一项。
可选地，所述LTM切换命令通过MAC层信令携带，例如：MAC subheader和/或MAC CE。
可选地，终端设备对候选小区执行条件和/或LTM执行条件实施评估，当至少一个候选小区满足执行条件或LTM执行条件且相应TAT仍在运行中，终端设备基于接收到的候选小区TA值发起免随机接入条件切换，或依据候选LTM小区TA值发起免随机接入条件LTM切换。
可选地，终端设备应用相应候选小区配置参数或候选LTM小区配置参数。
可选地，当满足执行条件候选小区或条件LTM候选小区相应TAT已经超时，则执行随机接入条件切换或条件LTM切换。
可选地，终端设备对目标小区发送上行数据和/或RRC重配完成信令。
可选地，目标小区响应终端设备发送的上行数据和/或RRC重配完成信令，发送确认信息和/或RRC重配完成确认，完成条件切换或条件LTM切换。
可选地，RRC重配完成确认可以是自动重传请求确认和/或自动混合重传请求确认，例如：终端设备发送RRC重配完成信令，接收候选小区反馈的ARQ ACK和/或HARQ-ACK、终端设备发送首个上行数据，接收候选小区反馈的ARQ ACK和/或HARQ-ACK。
可选地，终端设备在接收到候选小区确认信息后即完成条件切换和/或条件LTM切换，并将候选小区作为服务小区。
可选地，终端设备在完成条件切换或条件LTM切换后仍保存条件切换配置和/或条件LTM切换配置。
本实施例通过上述方案，具体通过网络设备预配置随机接入参数和/或下发提前发送随机接入请求，使终端设备可以提前获取目标小区TA值，并执行免随机接入条件切换和/或条件LTM切换，免去测量上报和/或切换信令下发，弹性指示需要提前上行同步的小区，减少信令开销和/或加速切换流程和/或减少服务中断时延，和/或明确行免随机接入条件切换和/或条件LTM切换流程。
第四实施例
在本申请前述任一实施例的基础上，本实施例进一步公开了前述实施例中的处理方法。
参照图9，图9为本发明实施例中根据第四实施例示出的交互流程示意图，如图9所示，可以先通过PDCCH order触发随机接入，再提供目标小区TA值以及预配置信息至终端设备。
可选地，终端设备上报测量报告，可选地，测量报告为层三测量报告。
可选地，源小区获取候选小区配置，包括：候选小区配置参数和/或随机接入参数。
可选地，所述候选小区可以为候选LTM小区。
可选地，所述候选LTM小区配置包括：候选LTM小区配置参数和/或随机接入参数。
可选地，所述获取候选小区配置和/或候选LTM小区配置可以是通过基站间任一交互信令，包括但不限于：UL RRC MESSAGE TRANSFER、HANDOVER REQUEST REQUEST、HANDOVER REQUEST ACKNOWLEDGE、UE CONTEXT MODIFICATION REQUEST、UE CONTEXT MODIFICATION RESPONSE，本申请实施例中对此不予以限定。
可选地，网络设备通过PDCCH下发DCI以要求终端设备执行PDCCH-order触发的随机接入。
可选地，所述DCI携带随机接入配置。
可选地，所述DCI还可以携带至少一个索引信息和/或至少一个索引随机接入配置。
可选地，网络设备还可以通过发送至少一个DCI触发终端设备对至少一个候选小区发送随机接入前导。
可选地，终端设备在接收到PDCCH-odrer触发的随机接入控制信息后，依据随机接入配置对候选小区发送随机接入前导。
可选地，终端设备依据至少一个索引信息和/或至少一个索引随机接入配置对至少一个候选小区发送随机接入前导。
可选地，终端设备响应于至少一个DCI触发的随机接入发送请求，对至少一个候选小区发送随机接入前导。
可选地，候选小区接收到终端发送的随机接入前导，计算相应TA值，并通过信令发送响应信息给源小区。
可选地，候选小区还可以提供上行调度、配置调度信息以及无线临时识别中的至少一项至源小区。
可选地，所述信令可以是基站间任一交互信令，包括但不限于：HANDOVER REQUEST、HANDOVER REQUEST ACKNOWLEDGE、UE CONTEXT MODIFICATION REQUEST、UE CONTEXT MODIFICATION RESPONSE，本申请实施例中对此不予以限定。
可选地，源小区发送条件切换配置，包括：条件切换配置索引、执行条件、候选小区配置参数以及候选小区TA值中的至少一项。
可选地，终端设备接收到条件切换配置后本地保存。
可选地，条件切换配置通过RRC重配信令发送。
可选地，源小区可以发送至少一个候选小区的条件切换配置，并通过条件切换配置索引区分候选小区。
可选地，所述条件切换还可以是条件LTM切换。
可选地，所述条件LTM切换配置包括：条件LTM切换配置索引、LTM执行条件、候选LTM小区配置参数以及候选LTM小区TA值中的至少一项。
可选地，终端设备在接收到候选小区和/或候选LTM小区TA值后，启动相应TAT。
可选地，终端设备发送配置确认信息。
可选地，配置确认通过RRC重配完成信令发送。
可选地，终端设备对候选小区执行条件和/或LTM执行条件实施评估，当至少一个候选小区满足执行条件或LTM执行条件且相应TAT仍在运行中，终端设备基于接收到的候选小区TA值发起免随机接入条件切换或条件LTM切换。
可选地，终端设备应用相应候选小区配置参数或候选LTM小区配置参数。
可选地，当满足执行条件候选小区或条件LTM候选小区相应TAT已经超时，则执行随机接入条件切换或是条件LTM切换。
可选地，终端设备对目标小区发送上行数据和/或RRC重配完成信令。
可选地，目标小区响应终端设备发送的上行数据和/或RRC重配完成信令，发送确认信息和/或RRC重配完成确认，完成条件切换。
可选地，RRC重配完成确认可以是自动重传请求确认和/或自动混合重传请求确认，例如：终端设备发送RRC重配完成信令，接收候选小区反馈的ARQ ACK和/或HARQ-ACK、终端设备发送首个上行数据，接收候选小区反馈的ARQ ACK和/或HARQ-ACK。
可选地，终端设备在接收到候选小区确认信息后即完成条件切换，并将候选小区作为服务小区。
可选地，终端设备在完成条件切换或条件LTM切换后仍保存条件切换配置和/或条件LTM切换配置，可选地，还包括候选小区TA值和/或候选LTM小区TA值。
本实施例通过上述方案，具体通过网络设备下发提前发送随机接入请求，提前获取目标小区TA值，通过预配置方式提供目标小区TA值和/或配置参数，使终端设备能执行免随机接入条件切换和/或条件LTM切换，免去测量上报和/或切换信令下发，弹性配置已提前执行上行同步的小区，减少信令开销和/或加速切换流程和/或减少服务中断时延，和/或明确行免随机接入条件切换和/或条件LTM切换流程。
第五实施例
在本申请前述任一实施例的基础上，本实施例进一步公开了前述实施例中的处理方法。
参照图10，图10为本发明实施例中根据第五实施例示出的交互流程示意图，如图10所示，若候选小区与服务小区有相同TA值或TA值等于0，则终端设备基于预配置信息执行条件评估，当至少一个目标小区满足执行条件，则应用目标小区配置参数，并通过目标小区TA指示信息执行免随机接入切换至目标小区。
可选地，终端设备上报测量报告，可选地，测量报告为层三测量报告。
可选地，源小区获取候选小区配置，包括：候选小区配置参数和/或TA信息。
可选地，所述TA信息包括：候选小区与服务小区有相同TA值，和/或，候选小区TA值为零。
可选地，所述候选小区可以为候选LTM小区。
可选地，候选LTM小区配置包括：候选LTM小区配置参数和/或候选LTM小区TA信息。
可选地，所述候选LTM小区TA信息包括：候选LTM小区与服务小区有相同TA值，和/或，候选LTM小区TA值为零。
可选地，所述获取候选小区配置和/或候选LTM小区配置可以是通过任何基站间任一交互信令携带，包括但不限于：UL RRC MESSAGE TRANSFER、HANDOVER REQUEST、HANDOVER REQUEST ACKNOWLEDGE、UE CONTEXT MODIFICATION REQUEST、UE CONTEXT MODIFICATION RESPONSE，本申请实施例中对此不予以限定。
可选地，源小区发送条件切换配置，包括：条件切换配置索引、执行条件、候选小区配置以及候选小区TA信息中的至少一项。
可选地，终端设备接收到条件切换配置后本地保存。
可选地，条件切换配置通过RRC重配信令发送。
可选地，源小区可以发送至少一个候选小区的条件切换配置，并通过条件切换配置索引区分候选小区。
可选地，所述条件切换还可以是条件LTM切换。
可选地，所述条件LTM切换配置包括：条件LTM切换配置索引、LTM执行条件、候选LTM小区配置以及候选LTM小区TA信息中的至少一项。
可选地，终端设备发送配置确认信息。
可选地，配置确认通过RRC重配完成信令发送。
可选地，终端设备对候选小区执行条件和/或LTM执行条件实施评估，当至少一个候选小区满足执行条件或LTM执行条件，终端设备基于接收到的候选小区TA信息发起免随机接入条件切换或条件LTM切换。
可选地，终端设备应用相应候选小区配置参数或候选LTM小区配置参数。
可选地，终端设备对目标小区发送上行数据和/或RRC重配完成信令。
可选地，目标小区响应终端设备发送的上行数据和/或RRC重配完成信令，发送确认信息和/或RRC重配完成确认，完成条件切换。
可选地，RRC重配完成确认可以是自动重传请求确认和/或自动混合重传请求确认，例如：终端设备发送RRC重配完成信令，接收候选小区反馈的ARQ ACK和/或HARQ-ACK、终端设备发送首个上行数据，接收候选小区反馈的ARQ ACK和/或HARQ-ACK。
可选地，终端设备在接收到候选小区确认信息后即完成条件切换，并将候选小区作为服务小区。
可选地，终端设备在完成条件切换或条件LTM切换后仍保存条件切换配置和/或条件LTM切换配置。
本实施例通过上述方案，具体通过网络设备提前获取切换小区上行同步信息，通过预配置方式提供目标小区上行同步信息，使终端设备能执行免随机接入条件切换和/或条件LTM切换，免去测量上报和/或切换信令下发和/或执行随机接入流程，弹性配置已提前获取免额外执行上行同步的小区，减少信令开销和/或加速切换流程和/或减少服务中断时延，和/或，明确行免随机接入条件切换和/或条件LTM切换流程。
第六实施例
在本申请前述任一实施例的基础上，本实施例进一步公开了前述实施例中的处理方法。
参照图11，图11为本发明实施例中根据第六实施例示出的交互流程示意图，如图11所示，终端设备基于接收的预配置信息，发送上行参考信号以提前获取目标小区TA值。
可选地，终端设备上报测量报告，可选地，测量报告为层三测量报告。
可选地，源小区获取候选小区配置，包括：候选小区配置参数和/或参考信号参数。
可选地，所述候选小区为候选LTM小区。
可选地，所述候选LTM小区配置包括：候选LTM小区配置参数和/或参考信号参数。
可选地，源小区发送条件切换配置，包括：条件切换配置索引、执行条件以及候选小区配置参数中的至少一项。
可选地，终端设备接收到条件切换配置后本地保存。
可选地，条件切换配置通过RRC重配信令发送。
可选地，源小区可以发送至少一个候选小区的条件切换配置，并通过条件切换配置索引区分候选小区。
可选地，所述条件切换还可以是条件LTM切换。
可选地，所述条件LTM切换配置包括：条件LTM切换配置索引、LTM执行条件以及候选LTM小区配置参数中的至少一项。
可选地，源小区还可以发送通用参考信号参数，用于后续条件LTM切换。
可选地，终端设备发送配置确认信息。
可选地，配置确认通过RRC重配完成信令发送。
可选地，终端设备可以依据执行条件评估候选小区，当至少一个候选小区满足执行条件，则对其发送上行参考信号。
可选地，终端设备可以依据LTM执行条件评估候选小区，当至少一个候选LTM小区满足执行条件，则对其发送上行参考信号。
可选地，终端设备在发送上行参考信号后在源小区接收响应信息。
可选地，满足执行条件和/或LTM执行条件包括：信号强度满足门限值，和/或，信号强度满足门限值且维持一段时间。
可选地，候选小区接收到终端设备发送的上行参考信号，计算相应TA值，并通过信令发送响应信息给源小区。
可选地，候选小区还可以提供上行传输时延至源小区，源小区通过候选小区提供的传输时延计算候选小区TA值。
可选地，候选小区还可以提供上行调度、配置调度信息以及无线临时识别中的至少一项至源小区。
可选地，所述信令可以是基站间任一交互信令，包括但不限于：HANDOVER REQUEST、HANDOVER REQUEST ACKNOWLEDGE、UE CONTEXT MODIFICATION REQUEST、UE CONTEXT MODIFICATION RESPONSE，本申请实施例中对此不予以限定。
可选地，源小区通过随机接入响应携带候选小区TA值发送给终端设备。
可选地，如果终端设备在发送上行参考信号的过程中对至少一个候选小区和/或候选LTM小区发送上行参考信号，则随机接入响应可以携带至少一个候选小区TA值。
可选地，网络设备通过发送至少一个RAR携带至少一个候选小区和/或候选LTM小区TA值。
可选地，随机接入响应还可以携带候选小区上行调度、配置调度信息以及无线临时识别中的至少一项。
可选地，终端设备在接收到候选小区TA值后，启动相应时间提前计时器。
可选地，源小区还可以通过LTM切换命令携带至少一个候选LTM小区TA值。
可选地，所述LTM切换命令还可以携带候选LTM小区上行调度、配置调度信息以及无线临时识别中的至少一项。
可选地，所述LTM切换命令通过MAC层信令携带，例如：MAC subheader和/或MAC CE。
可选地，终端设备基于接收到的候选小区TA值和/或候选LTM小区TA值发起免随机接入条件切换或LTM执行条件。
可选地，终端设备对候选小区执行条件和/或LTM执行条件实施评估，当至少一个候选小区仍满足执行条件或LTM执行条件且相应TAT仍在运行中，则发起免随机接入条件切换或LTM执行条件。
可选地，终端设备应用相应候选小区配置参数或候选LTM小区配置参数。
可选地，若TAT已经超时，则执行随机接入条件切换或条件LTM切换。
可选地，目标小区响应终端设备发送的上行数据和/或RRC重配完成信令，发送确认信息和/或RRC重配完成确认，完成条件切换或条件LTM切换。
可选地，RRC重配完成确认可以是自动重传请求确认和/或自动混合重传请求确认，例如：终端设备发送RRC重配完成信令，接收候选小区反馈的ARQ ACK和/或HARQ-ACK、终端设备发送首个上行数据，接收候选小区反馈的ARQ ACK和/或HARQ-ACK。
可选地，终端设备在接收到候选小区确认信息后即完成条件切换或条件LTM切换，并将候选小区作为服务小区(Serving Cell)。
可选地，终端设备在完成条件切换或条件LTM切换后仍保存条件切换配置和/或条件LTM切换配置。
本实施例通过上述方案，具体通过网络设备预配置参考信号参数，使终端设备可以提前执行上行同步和/或提前获取目标小区TA值，并执行免随机接入条件切换和/或条件LTM切换，免去测量上报和/或切换信令下发并执行提前上行同步，减少信令开销和/或加速切换流程和/或减少服务中断时延，和/或，明确行免随机接入条件切换和/或条件LTM切换流程。
第七实施例
在本申请前述任一实施例的基础上，本实施例进一步公开了前述实施例中的处理方法。
参照图12，图12为本发明实施例中根据第七实施例示出的交互流程示意图，如图12所示，终端设备先接收预配置信息，再通过PDCCH order触发SRS发送以提前获取目标小区TA值。
可选地，终端设备上报测量报告，可选地，测量报告为层三测量报告。
可选地，源小区获取候选小区配置，包括：候选小区配置参数和/或参考信号参数。
可选地，所述候选小区可以为候选LTM小区。
可选地，所述候选LTM小区配置包括：候选LTM小区配置参数和参考信号参数。
可选地，所述获取候选小区配置和/或候选LTM小区配置可以是通过基站间任一交互信令携带，包括但不限于：UL RRC MESSAGE TRANSFER、HANDOVER REQUEST、HANDOVER REQUEST ACKNOWLEDGE、UE CONTEXT MODIFICATION REQUEST、UE CONTEXT MODIFICATION RESPONSE，本申请实施例中对此不予以限定。
可选地，源小区发送条件切换配置，包括：条件切换配置索引、执行条件以及候选小区配置参数中的至少一项。
可选地，终端设备接收到条件切换配置后本地保存。
可选地，条件切换配置通过RRC重配信令发送。
可选地，源小区可以发送至少一个候选小区的条件切换配置，并通过条件切换配置索引区分候选小区。
可选地，所述条件切换还可以是条件LTM切换。
可选地，所述条件LTM切换配置包括：条件LTM切换配置索引、LTM执行条件以及候选LTM小区配置参数中的至少一项。
可选地，源小区还可以发送通用参考信号参数(commmon reference signal parameters)，用于后续LTM切换。
可选地，终端设备发送配置确认信息。
可选地，配置确认通过RRC重配完成信令发送。
可选地，网络设备通过PDCCH下发DCI要求终端设备执行PDCCH-order触发的上行参考信号发送。
可选地，所述DCI携带索引信息和/或参考信号配置。
可选地，所述DCI携带至少一个索引信息和/或参考信号配置。
可选地，所述索引信息为条件切换配置索引和/或条件LTM切换配置索引。
可选地，终端设备在接收到PDCCH-odrer触发的参考信号控制信息后，依据索引信息以及条件切换配置确定候选小区以及参考信号参数，并依据参考信号参数对候选小区发送上行参考信号。
可选地，终端设备依据参考信号配置对候选小区发送上行参考信号。
可选地，终端设备依据索引信息以及条件切换配置确定候选小区以及参考信号参数，再依据参考信号参数发送上行参考信号。
可选地，终端设备在发送上行参考信号后回到源小区接收响应信息。
可选地，终端设备依据至少一个索引信息和/或参考信号配置对至少一个候选小区发送上行参考信号。
可选地，终端设备依据至少一个DCI触发的PDCCH-order上行参考信号对至少一个候选小区发送上行参考信号。
可选地，终端设备依据所述DCI携带索引类型确定发送上行参考信号的候选小区，例如：索引信息为条件切换配置索引，则对候选小区发送上行参考信号。
可选地，若索引信息为条件LTM切换配置索引，则对候选LTM小区发送上行参考信号。
可选地，候选小区接收到终端设备发送的上行参考信号，计算相应TA值，并通过信令发送响应信息给源小区。
可选地，候选小区还可以提供上行调度、配置调度信息以及无线临时识别中的至少一项给源小区。
可选地，候选小区还可以提供上行传输时延给源小区，源小区通过候选小区提供的传输时延计算候选小区TA值。
可选地，所述信令可以是基站间任一交互信令，包括但不限于：HANDOVER REQUEST、HANDOVER REQUEST ACKNOWLEDGE、UE CONTEXT MODIFICATION REQUEST、UE CONTEXT MODIFICATION RESPONSE，本申请实施例中对此不予以限定。
可选地，源小区通过随机接入响应携带候选小区TA值发并送给终端设备。
可选地，如果终端设备在发送上行参考信号的过程中对至少一个候选小区和/或候选LTM小区发送上行参考信号，则随机接入响应可以携带至少一个候选小区和/或候选LTM小区TA值。
可选地，网络设备通过发送至少一个RAR携带至少一个候选小区和/或候选LTM小区TA值。
可选地，随机接入响应还可以携带候选小区、候选LTM小区上行调度、配置调度信息以及无线临时识别中的至少一项。
可选地，终端设备在接收到候选小区和/或候选LTM小区TA值后，启动相应时间提前计时器。
可选地，源小区还可以通过LTM切换命令携带至少一个候选LTM小区TA值。
可选地，所述LTM切换命令还可以携带候选LTM小区上行调度、配置调度信息以及无线临时识别中的至少一项。
可选地，所述LTM切换命令通过MAC层信令携带，例如：MAC subheader和/或MAC CE。
可选地，终端设备对候选小区执行条件和/或LTM执行条件实施评估，当至少一个候选小区满足执行条件或LTM执行条件且相应TAT仍在运行中，终端设备基于接收到的候选小区TA值发起免随机接入条件切换，和/或依据候选LTM小区TA值发起免随机接入条件LTM切换。
可选地，终端设备应用相应候选小区配置参数或候选LTM小区配置参数。
可选地，当满足执行条件候选小区或条件LTM候选小区相应TAT已经超时，则执行随机接入条件切换或是条件LTM切换。
可选地，终端设备对目标小区发送上行数据和/或RRC重配完成信令。
可选地，目标小区响应终端设备发送的上行数据和/或RRC重配完成信令，发送确认信息和/或RRC重配完成确认，完成条件切换或条件LTM切换。
可选地，RRC重配完成确认可以是自动重传请求确认和/或自动混合重传请求确认，例如：终端设备发送RRC重配完成信令，接收候选小区反馈的ARQ ACK和/或HARQ-ACK、终端设备发送首个上行数据，接收候选小区反馈的ARQ ACK和/或HARQ-ACK。
可选地，终端设备在接收到候选小区确认信息后即完成条件切换和/或条件LTM切换，并将候选小区作为服务小区。
可选地，终端设备在完成条件切换或条件LTM切换后仍保存条件切换配置和/或条件LTM切换配置。
本实施例通过上述方案，具体通过网络设备预配置参考信号参数和/或下发上行参考信号请求，使终端设备可以提前获取目标小区TA值，并执行免随机接入条件切换和/或条件LTM切换，免去测量上报和/或切换信令下发，弹性指示需要提前上行同步的小区，减少信令开销和/或加速切换流程和/或减少服务中断时延，和/或，明确执行免随机接入条件切换和/或条件LTM切换流程。
第八实施例
在本申请前述任一实施例的基础上，本实施例进一步公开了前述实施例中的处理方法。
参照图13，图13为本发明实施例中根据第八实施例示出的交互流程示意图，如图13所示，先通过PDCCH order触发SRS发送，再提供目标小区TA值以及预配置信息至终端设备。
可选地，终端设备上报测量报告，可选地，测量报告为层三测量报告。
可选地，源小区获取候选小区配置，包括：候选小区配置参数和/或参考信号参数。
可选地，所述候选小区可以为候选LTM小区。
可选地，所述候选LTM小区配置包括：候选LTM小区配置参数和/或参考信号参数。
可选地，所述获取候选小区配置和/或候选LTM小区配置可以是通过基站间任一交互信令携带，包括但不限于：UL RRC MESSAGE TRANSFER、HANDOVER REQUEST、HANDOVER REQUEST  ACKNOWLEDGE、UE CONTEXT MODIFICATION REQUEST、UE CONTEXT MODIFICATION RESPONSE，本申请实施例中对此不予以限定。
可选地，网络设备通过PDCCH下发DCI以要求终端设备执行PDCCH-order触发的上行参考信号发送，可选地，所述DCI携带参考信号配置。
可选地，所述DCI还可以携带至少一个索引信息和/或至少一个参考信号配置。
可选地，网络设备还可以通过发送至少一个DCI触发终端设备对至少一个候选小区发送上行参考信号。
可选地，终端设备在接收到PDCCH-odrer触发的上行参考信号控制信息，依据参考信号配置对候选小区发送上行参考信号。
可选地，终端设备依据至少一个索引信息和/或至少一个索引参考信号配置对至少一个候选小区发送上行参考信号。
可选地，终端设备响应于至少一个DCI触发的上行参考信号请求，对至少一个候选小区发送上行参考信号。
可选地，候选小区接收到终端设备发送的上行参考信号，计算相应TA值，并通过信令发送响应信息给源小区。
可选地，候选小区还可以提供上行传输时延给源小区，源小区通过候选小区提供的传输时延计算候选小区TA值。
可选地，候选小区还可以提供上行调度、配置调度信息以及无线临时识别中的至少一项给源小区。
可选地，所述信令可以是基站间任一交互信令，包括但不限于：HANDOVER REQUEST、HANDOVER REQUEST ACKNOWLEDGE、UE CONTEXT MODIFICATION REQUEST、UE CONTEXT MODIFICATION RESPONSE，本申请实施例中对此不予以限定。
可选地，源小区发送条件切换配置，包括：条件切换配置索引、执行条件、候选小区配置参数以及候选小区TA值中的至少一项。
可选地，终端设备接收到条件切换配置后本地保存。
可选地，条件切换配置通过RRC重配信令发送。
可选地，源小区可以发送至少一个候选小区的条件切换配置，并通过条件切换配置索引区分候选小区。
可选地，所述条件切换还可以是条件LTM切换。
可选地，所述条件LTM切换配置包括：条件LTM切换配置索引、LTM执行条件、候选LTM小区配置参数以及候选LTM小区TA值中的至少一项。
可选地，终端设备在接收到候选小区和/或候选LTM小区TA值后，启动相应TAT。
可选地，终端设备发送配置确认信息。
可选地，配置确认通过RRC重配完成信令发送。
可选地，终端设备对候选小区执行条件和/或LTM执行条件实施评估，当至少一个候选小区满足执行条件或LTM执行条件且相应TAT仍在运行中，终端设备基于接收到的候选小区TA值，发起免随机接入条件切换和/或条件LTM切换。
可选地，终端设备应用相应候选小区配置参数或候选LTM小区配置参数。
可选地，当满足执行条件候选小区和/或条件LTM候选小区相应TAT已经超时，则执行随机接入条件切换或是条件LTM切换。
可选地，终端设备对目标小区发送上行数据和/或RRC重配完成信令。
可选地，目标小区响应终端设备发送的上行数据和/或RRC重配完成信令，发送确认信息和/或RRC重配完成确认，完成条件切换。
可选地，RRC重配完成确认可以是自动重传请求确认和/或自动混合重传请求确认，例如：终端设备发送RRC重配完成信令，接收候选小区反馈的ARQ ACK和/或HARQ-ACK、终端设备发送首个上行数据，接收候选小区反馈的ARQ ACK和/或HARQ-ACK。
可选地，终端设备在接收到候选小区确认信息后即完成条件切换，并将候选小区作为服务小区。
可选地，终端设备在完成条件切换或条件LTM切换后仍保存条件切换配置和/或条件LTM切换配置，可选地，条件切换配置包括候选小区TA值，和/或条件LTM切换配置包括候选LTM小区TA值。
本实施例通过上述方案，具体通过网络设备下发上行参考信号发送请求，提前获取目标小区TA值，通过预配置方式提供目标小区TA值和/或配置参数，使终端设备能执行免随机接入条件切换和/或条件LTM切换，免去测量上报和/或切换信令下发，弹性配置已提前执行上行同步的小区，减少信令开销和/或加速切换流程和/或减少服务中断时延，和/或，明确行免随机接入条件切换和/或条件LTM切换流程。
第九实施例
在本申请前述任一实施例的基础上，本实施例进一步公开了前述实施例中的处理方法。
参照图14，图14为本发明实施例中根据第九实施例示出的交互流程示意图，如图14所示，终端设备依据预配置信息获取目标小区系统消息，并依据系统消息携带的随机接入参数发送随机接入前导，以提前获取目标小区TA值。
可选地，终端设备上报测量报告，可选地，测量报告为层三测量报告。
可选地，源小区获取候选小区配置，包括：候选小区配置参数。
可选地，所述候选小区可以为候选LTM小区。
可选地，所述候选LTM小区配置包括：候选LTM小区配置参数。
可选地，源小区发送条件切换配置，包括：条件切换配置索引、执行条件以及候选小区配置参数中的至少一项。
可选地，终端设备接收到条件切换配置后本地保存。
可选地，条件切换配置通过RRC重配信令发送。
可选地，源小区可以发送至少一个候选小区的条件切换配置，并通过条件切换配置索引区分候选小区。
可选地，所述条件切换还可以是条件LTM切换。
可选地，所述条件LTM切换配置包括：条件LTM切换配置索引、LTM执行条件以及候选LTM小区配置参数中的至少一项。
可选地，终端设备发送配置确认信息。
可选地，配置确认通过RRC重配完成信令发送。
可选地，终端设备依据候选小区配置和/或候选LTM小区配置获取相应系统消息，所述系统消息包括随机接入参数和/或参考信号参数。
可选地，终端设备依据随机接入参数和/或参考信号参数发送随机接入前导和/或上行参考信号。
可选地，当源小区配置至少一个条件切换配置和/或条件LTM切换配置，终端设备可以对至少一个候选小区和/或候选LTM小区发送随机接入前导和/或上行参考信号。
可选地，终端设备可以依据执行条件评估候选小区和/或候选LTM小区，当至少一个候选小区和/或候选LTM小区满足执行条件，则获取相应小区的系统信息，所述系统消息包括随机接入参数和/或参考信号参数，终端设备依据随机接入参数和/或参考信号参数发送随机接入前导和/或上行参考信号。
可选地，终端设备在发送随机接入前导和/或上行参考信号后回到源小区接收响应信息。
可选地，满足执行条件和/或LTM执行条件包括：信号强度度满足门限值，和/或，信号强度满足门限值且维持一段时间。
可选地，候选小区和/或候选LTM小区接收到终端设备发送的上行参考信号，计算相应TA值，并通过信令发送响应信息给源小区。
可选地，候选小区和/或候选LTM小区还可以提供上行传输时延给源小区，源小区通过候选小区提供的传输时延计算候选小区TA值。
可选地，候选小区和/或候选LTM小区还可以提供上行调度和/或配置调度信息和/或无线临时识别给源小区。可选地，所用信令可以是基站间任一交互信令，包括但不限于：HANDOVER REQUEST、HANDOVER REQUEST ACKNOWLEDGE、UE CONTEXT MODIFICATION REQUEST、UE CONTEXT MODIFICATION RESPONSE，本申请实施例中对此不予以限定。
可选地，源小区通过随机接入响应携带候选小区和/或候选LTM小区TA值，并发送至终端设备。
可选地，如果终端设备在发送随机接入前导和/或上行参考信号的过程中对至少一个候选小区和/或候选LTM小区发送随机接入前导和/或上行参考信号，随机接入响应可以携带至少一个候选小区和/或候选LTM小区TA值。
可选地，网络设备通过发送至少一个RAR携带至少一个候选小区和/或候选LTM小区TA值。
可选地，随机接入响应还可以携带候选小区和/或候选LTM小区的上行调度、配置调度信息以及无线临时识别中的至少一项。
可选地，终端设备在接收到候选小区TA值后，启动相应时间提前计时器。
可选地，源小区还可以通过LTM切换命令携带至少一个候选LTM小区TA值。
可选地，所述LTM切换命令还可以携带候选LTM小区的上行调度、配置调度信息以及无线临时识别中的至少一项。
可选地，所述LTM切换命令通过MAC层信令携带，例如：MAC subheader和/或MAC CE。
可选地，终端设备对候选小区执行条件和/或LTM执行条件实施评估，当至少一个候选小区满足执行条件或LTM执行条件且相应TAT仍在运行中，终端设备基于接收到的候选小区TA值或候选LTM小区TA值，发起免随机接入条件切换或LTM执行条件。
可选地，如果在终端设备发送随机接入前导和/或上行参考信号的过程中，候选小区已满足执行条件和/或LTM执行条件，因此当终端设备在接收到源小区发送的候选小区TA值或候选LTM小区TA值后，随即执行免随机接入条件切换或条件LTM切换。
可选地，终端设备应用相应候选小区配置参数或候选LTM小区配置参数。
可选地，当满足执行条件候选小区或条件LTM候选小区相应TAT已经超时，则执行随机接入条件切换或是条件LTM切换。
可选地，终端设备对目标小区发送上行数据和/或RRC重配完成信令。
可选地，目标小区响应终端设备发送的上行数据和/或RRC重配完成信令，发送确认信息和/或RRC重配完成确认，完成条件切换或条件LTM切换。
可选地，RRC重配完成确认可以是自动重传请求确认和/或自动混合重传请求确认，例如：终端设备发送RRC重配完成信令，接收候选小区反馈的ARQ ACK和/或HARQ-ACK、终端设备发送首个上行数据，接收候选小区反馈的ARQ ACK和/或HARQ-ACK。
可选地，终端设备在接收到候选小区确认信息后即完成条件切换或条件LTM切换，并将候选小区作为服务小区。
可选地，终端设备在完成条件切换和/或条件LTM切换后仍保存条件切换配置和/或条件LTM切换配置。
本实施例通过上述方案，具体通过网络设备预配置候选小区信息，终端设备可以依据预配置信息提前执行上行同步和/或提前获取目标小区TA值，并执行免随机接入条件切换和/或条件LTM切换，免去测量上报和/或切换信令下发并执行提前上行同步和/或预留资源浪费，减少信令开销和/或加速切换流程和/或减少服务中断时延，和/或，明确行免随机接入条件切换和/或条件LTM切换流程。
第十实施例
在本申请前述任一实施例的基础上，本实施例进一步公开了前述实施例中的处理方法。
可选地，终端设备上报测量报告后，若先接收到源小区发送的至少一候选小区的条件切换配置和/或条件LTM切换配置，则可以先根据条件切换配置和/或条件LTM切换配置中的执行条件进行条件切换评估，进而根据评估结果对满足执行条件的至少一候选小区发送随机接入前导和/或上行参考信号，并在发送随机接入前导和/或上行参考信号后在源小区接收响应信息。候选小区接收到终端设备发送的随机接入前导和/或上行参考信号，通过信令发送相应TA值和/或上行传输时延至源小区。源小区可以通过RAR和/或LTM切换命令携带候选小区和/或候选LTM小区的TA值发送至终端设备，使终端设备发起免随机接入条件切换和/或条件LTM切换。
可选地，终端设备上报测量报告后，若先接收到源小区发送的至少一候选小区的条件切换配置和/或条件LTM切换配置，且又接收到网络设备通过PDCCH下发的DCI(用于要求终端设备执行PDCCH-order触发的随机接入和/或上行参考信号发送)，则可以在接收到PDCCH-odrer触发的随机接入控制信息和/或上行参考信号发送请求后，依据随机接入参数和/或随机接入配置发送随机接入前导，和/或，依据参考信号参数和/或随机接入配置发送上行参考信号，并在发送随机接入前导和/或上行参考信号后在源小区接收响应 信息。候选小区接收到终端设备发送的随机接入前导和/或上行参考信号，通过信令发送相应TA值和/或上行传输时延至源小区。源小区可以通过RAR和/或LTM切换命令携带候选小区和/或候选LTM小区的TA值发送至终端设备，使终端设备进一步执行条件切换评估，进而根据评估结果对满足执行条件的候选小区发起免随机接入条件切换，和/或对满足执行条件的候选LTM小区发起免随机接入条件LTM切换。
可选地，终端设备上报测量报告后，若先接收到网络设备通过PDCCH下发的DCI(用于要求终端设备执行PDCCH-order触发的随机接入和/或上行参考信号发送)，则可以在接收到PDCCH-odrer触发的随机接入控制信息和/或上行参考信号发送请求后，依据随机接入参数和/或随机接入配置发送随机接入前导，和/或，依据参考信号参数和/或随机接入配置发送上行参考信号，并在发送随机接入前导和/或上行参考信号后在源小区接收响应信息。候选小区接收到终端设备发送的随机接入前导和/或上行参考信号，通过信令发送相应TA值和/或上行传输时延至源小区。源小区可以通过RAR和/或LTM切换命令携带候选小区和/或候选LTM小区的TA值发送至终端设备，并发送相应的候选小区的条件切换配置和/或条件LTM切换配置，使终端设备根据条件切换配置和/或条件LTM切换配置中的执行条件进行条件切换评估，进而根据评估结果对满足执行条件的候选小区发起免随机接入条件切换，和/或对满足执行条件的候选LTM小区发起免随机接入条件LTM切换。
本实施例通过上述方案，具体通过终端设备根据网络设备下发配置信息和/或DCI的内容和/或先后顺序，灵活确定获取目标小区TA值的方式，执行免随机接入条件切换和/或条件LTM切换，免去测量上报和/或切换信令下发并执行提前上行同步和/或预留资源浪费，减少信令开销和/或加速切换流程和/或减少服务中断时延，和/或，明确执行免随机接入条件切换和/或条件LTM切换流程。
第十一实施例
图15为本发明实施例中根据第十一实施例示出的交互流程示意图，本实施例中提出一种通过终端设备自主测量得到目标小区TA值的方法。
现有协议中，终端设备执行提前上行同步都是通过网络设备控制，例如：PDCCH order触发终端设备对候选小区发送随机接入前导，并通过服务小区获得候选小区TA值，和/或，通过MAC CE激活目标小区TCI State并在配置有终端测量TA的指示下进行TA值测量，但在条件切换和/或条件LTM切换场景下，终端设备无法确定自主测量候选小区TA值的时机，和/或，在连续条件切换和/或连续条件LTM切换场景下，终端设备无法确定自主测量候选小区TA值的时机。
本实施例中引入条件切换和/或条件LTM切换中提前获取目标小区TA值方式。
可选地，终端设备响应于满足第一条件，执行免随机接入条件切换和/或条件LTM切换。
可选地，执行免随机接入条件切换和/或条件LTM切换，包括基于测量TA值，执行免随机接入条件切换和/或条件LTM切换。
可选地，终端设备上报测量报告，可选地，测量报告为层三测量报告。
可选地，源小区获取候选小区配置，包括：候选小区配置参数和/或补偿值。
可选地，补偿值为上行接收的时间差(UL RX timing difference)和/或下行发送的时间差(DL TX timing difference)。
可选地，补偿值用于辅助终端设备计算候选小区TA值。
可选地，时间差可以为网络设备侧时间差和/或终端设备侧时间差，例如：网络设备接收上行的时间差、网络设备发送下行时间差、终端设备发送上行时间差、终端设备接收下行时间差，本实施例中对此不予限制。
可选地，补偿值为特定候选小区补偿值，例如：每个候选小区有自己的补偿值。
可选地，候选小区为候选LTM小区。
可选地，候选LTM小区配置包括终端设备测量TA值标识(ueMeasuredTA-ID)、提前上行同步配置、配置调度配置、候选小区完整配置指示、新终端无线临时标识、时间提前计时器、候选小区差异配置以及候选小区参考配置中的至少一项。
可选地，网路还配置服务小区终端设备测量TA值标识；
可选地，层一测量配置包括LTM信道状态信息资源配置和/或LTM信道状态信息报告配置。
可选地，配置调度配置还关联波束信息。
可选地，配置调调度配置包括配置调度类型1(CG Type 1)。
可选地，LTM候选小区配置关联相应索引。
可选地，源小区发送条件切换配置，包括：条件切换配置索引、条件执行条件以及候选小区配置中的至少一项。
可选地，终端设备接收到条件切换配置后本地保存。可选地，条件切换配置通过RRC重配信令发送。
可选地，源小区可以发送至少一个候选小区的条件切换配置，并通过条件切换配置索引区分候选小区。
可选地，条件切换还可以是条件LTM切换。
可选地，条件LTM切换配置包括：条件LTM切换配置索引、LTM执行条件以及候选LTM小区配置参数中的至少一项。
可选地，源小区还可以发送通用随机接入参数，用于后续条件LTM切换。
可选地，终端设备发送配置确认信息，可选地，配置确认通过RRC重配完成信令发送。
可选地，终端设备依据执行条件评估候选小区，当至少一个候选小区满足执行条件，则触发终端设备测量对应候选小区的测量TA值。
可选地，终端设备响应于满足测量条件，对至少一候选小区发起终端设备测量TA值。
可选地，测量条件包括至少一候选小区配置终端设备测量TA值标识。
可选地，终端设备判断相应候选小区是否配置终端设备测量TA值标识，如果已配置终端设备测量TA值标识，则可以触发终端设备测量TA值；如果未配置终端设备测量TA值标识，则执行随机接入条件切换或是执行前述实施例中的TA值获取方式，本实施例中对此不进行赘述。
可选地，终端设备接收网络设备下发的候选小区TCI状态，激活MAC CE，并判断相应候选小区是否配置终端设备测量TA值标识，如果已配置终端设备测量TA值标识，则可以对候选小区发起终端设备测量TA值；如果未配置终端设备测量TA值标识，则不对候选小区发起终端设备测量TA值。
可选地，测量条件还包括至少一候选小区配置的终端设备测量TA值标识与当前服务小区配置的终端 设备测量TA值标识相同。
可选地，终端设备判断相应候选小区配置的终端设备测量TA值标识是否与当前服务小区配置的终端设备测量TA值标识相同，如果相同，则可以触发终端设备测量TA值；如果不相同，则执行随机接入条件切换或是执行前述实施例中的TA值获取方式，本实施例中对此不进行赘述。
可选地，终端设备可以依据LTM执行条件评估候选小区，当至少一个候选小区满足执行条件则对相应的候选小区发起终端设备测量TA值。
可选地，至少一候选小区满足执行条件包括：至少一候选小区满足条件执行条件和/或LTM执行条件。
可选地，终端设备测量TA值通过服务小区TA值和/或补偿值，进行测量和/或计算获得，可选地，补偿值可以通过候选小区索引获得。
可选地，服务小区TA值通过MAC CE携带，具体可参考现有协议TS 38.321，本实施例中对此不进行赘述。
可选地，满足执行条件和/或LTM执行条件包括：信号限度满足门限值和/或信号强度满足门限值且维持一段时间。
可选地，终端设备基于测量到的候选小区TA值和/或候选LTM小区TA值发起免随机接入条件切换或LTM条件切换，并对候选小区发送上行数据和/或RRC重配完成信令。
可选地，终端设备应用测量到的候选小区TA值和/或启动TAT。
可选地，终端设备确认是否有测量的候选小区TA值，如果有测量的候选小区TA值，则执行免随机接入条件切换；和/或，如果没有测量的候选小区TA值，则执行随机接入条件切换。
可选地，终端设备应用相应候选小区配置参数或候选LTM小区配置参数，可选地，所述配置参数为完整配置。
可选地，完整配置通过参考配置和/或差异配置结合而成。
可选地，目标小区响应终端设备发送的上行数据和/或RRC重配完成信令，发送新的下行数据调度和/或新的上行数据调度，终端设备在接收到候选小区新的调度后即完成条件切换或条件LTM切换，并将候选小区视为服务小区。
可选地，终端设备在完成条件切换或条件LTM切换后仍保存条件切换配置和/或条件LTM切换配置。
可选地，终端设备在完成条件切换或条件LTM切换后更新服务小区终端设备测量TA值标识，例如：终端设备测量TA值标识更新为切换的候选小区终端设备测量TA值标识。
通过本实施例技术方案，具体通过终端设备在满足第一条件的情况下自主测量TA值，并基于测量TA值，执行免随机接入条件切换和/或条件LTM切换，使终端设备可以提前执行上行同步和/或提前获取目标小区TA值，并执行免随机接入条件切换和/或条件LTM切换，免去测量上报和/或切换信令下发，执行提前上行同步，减少信令开销，和/或，加速切换流程，和/或，减少服务中断时延，和/或，明确行免随机接入条件切换和/或条件LTM切换流程。
第十二实施例
参照图16，图16为根据第十二实施例示出的处理方法的流程示意图，本申请实施例的所述方法可应用于网络设备(如：基站)，包括步骤：
S1：发送第一内容，以使终端设备基于第一内容执行免随机接入条件切换和/或条件LTM切换。
可选地，第一内容包括下行控制信息、候选小区的条件切换配置、条件LTM切换配置、服务小区TA值、终端设备测量TA值标识以及补偿值中的至少一项。
可选地，条件切换配置包括候选小区TA值为零的指示信息和/或候选小区与服务小区的TA值相同的指示信息。
可选地，条件LTM切换配置包括候选LTM小区TA值为零的指示信息和/或候选LTM小区与服务小区的TA值相同的指示信息。
可选地，终端设备基于第一内容执行免随机接入条件切换和/或条件LTM切换，包括：
终端设备基于第一内容选取或确定满足第二条件的候选小区；
终端设备向满足第二条件的候选小区发送随机接入前导和/或参考信号，终端设备基于服务小区提供的随机接入前导和/或参考信号对应的反馈信息，执行免随机接入条件切换和/或条件LTM切换；和/或，终端设备测量和/或计算满足第二条件的候选小区的测量TA值，基于测量TA值，执行免随机接入条件切换和/或条件LTM切换。
可选地，第二条件包括条件切换执行条件和/或条件LTM切换执行条件。
可选地，反馈信息携带于随机接入响应和/或LTM切换命令。
可选地，反馈信息包括候选小区TA值和/或候选LTM小区TA值。
可选地，下行控制信息包括索引信息、随机接入配置以及参考信号配置中的至少一项。
可选地，终端设备测量TA值标识用于触发终端设备测量和/或计算对应的候选小区的测量TA值。
可选地，测量TA值由终端设备通过服务小区TA值和/或补偿值进行测量和/或计算得到。
可选地，条件切换配置包括条件切换配置索引、执行条件、候选小区配置参数以及候选小区TA值中的至少一项。
可选地，条件LTM切换配置包括条件LTM切换配置索引、LTM执行条件、候选LTM小区配置参数以及候选LTM小区TA值中的至少一项。
可选地，随机接入响应携带至少一候选小区和/或候选LTM小区的TA值、上行调度、配置调度信息以及无线临时识别中的至少一项。
可选地，LTM切换命令携带至少一候选LTM小区的TA值、上行调度、配置调度信息以及无线临时识别中的至少一项。
可选地，索引信息包括条件切换配置索引和/或条件LTM切换配置索引。
可选地，终端设备响应于满足测量条件，对至少一候选小区发起终端设备测量TA值。
可选地，网络设备可以获取候选小区提供的候选小区TA值、补偿值、上行传输时延、上行调度、配置调度信息以及无线临时识别中的至少一项。
可选地，网络设备根据上行传输时延可以计算候选小区TA值。
可选地，网络设备接收候选小区发送的随机接入前导和/或参考信号对应的反馈信息，和/或，发送随机 接入前导和/或参考信号对应的反馈信息至终端设备。
本实施例通过上述方案，具体通过发送第一内容，以使终端设备基于第一内容执行免随机接入条件切换和/或条件LTM切换，提供了一种支持免随机接入的条件切换和/或条件LTM切换方法，和/或，明确了条件LTM切换的执行条件；和/或，引入了条件切换和/或条件LTM切换提前获取目标小区TA值方式；减少了网络设备下发切换信令造成的信令开销，和/或加速切换流程和/或减少服务中断时延。
请参见图17，图17为本申请实施例提供的处理装置的结构示意图一，该装置可搭载在或就是上述方法实施例中的终端设备。图17所示的处理装置可以用于执行上述实施例所描述的方法实施例中的部分或全部功能。如图17所示，该处理装置110包括：
处理模块111，用于响应于满足第一条件，执行免随机接入条件切换和/或条件LTM切换。
可选地，所述执行免随机接入条件切换和/或条件LTM切换，包括：
基于服务小区提供的随机接入前导和/或参考信号对应的反馈信息，执行免随机接入条件切换和/或条件LTM切换；和/或，
基于测量TA值，执行免随机接入条件切换和/或条件LTM切换。
可选地，所述满足第一条件，包括以下至少一项：
确定至少一候选小区满足条件切换执行条件；
确定至少一候选小区满足条件LTM切换执行条件；
接收到下行控制信息；
接收到无线资源控制重配信令；
条件切换配置携带了候选小区TA值为零的指示信息和/或候选小区与服务小区的TA值相同的指示信息；
条件LTM切换配置携带了候选LTM小区TA值为零的指示信息和/或候选LTM小区与服务小区的TA值相同的指示信息。
可选地，所述装置还包括以下至少一项：
反馈信息携带于随机接入响应和/或LTM切换命令；
反馈信息包括候选小区TA值和/或候选LTM小区TA值；
下行控制信息包括索引信息、随机接入配置以及参考信号配置中的至少一项；
无线资源控制重配信令包括服务小区TA值、至少一候选小区的条件切换配置、条件LTM切换配置、终端设备测量TA值标识以及补偿值中的至少一项。
可选地，所述装置还包括以下至少一项：
条件切换配置包括条件切换配置索引、执行条件、候选小区配置参数以及候选小区TA值中的至少一项；
条件LTM切换配置包括条件LTM切换配置索引、LTM执行条件、候选LTM小区配置参数以及候选LTM小区TA值中的至少一项；
随机接入响应携带至少一候选小区和/或候选LTM小区的TA值、上行调度、配置调度信息以及无线临时识别中的至少一项；
LTM切换命令携带至少一候选LTM小区的TA值、上行调度、配置调度信息以及无线临时识别中的至少一项；
索引信息包括条件切换配置索引和/或条件LTM切换配置索引；
终端设备响应于满足测量条件，对至少一候选小区发起终端设备测量TA值。
可选地，所述装置还包括以下至少一项：
相应候选小区的系统消息根据候选小区配置参数和/或候选LTM小区配置参数获取；
基于候选小区TA值和/或候选LTM小区TA值，执行免随机接入；
基于条件切换配置执行条件切换评估；
基于条件LTM切换配置执行条件LTM切换评估；
应用候选小区配置参数和/或候选LTM小区配置参数；
保存条件切换配置和/或条件LTM切换配置；
测量条件包括至少一候选小区配置终端设备测量TA值标识，和/或，至少一候选小区配置的终端设备测量TA值标识与当前服务小区配置的终端设备测量TA值标识相同；
测量TA值由终端设备通过服务小区TA值和/或补偿值进行测量和/或计算得到。
本申请实施例提供的处理装置可以执行上述方法实施例所示的技术方案，其实现原理以及有益效果类似，此处不再进行赘述。
请参见图18，图18为本申请实施例提供的处理装置的结构示意图二，该装置可搭载在或就是上述方法实施例中的网络设备。如图18所示，该处理装置120包括：
发送模块121，用于发送第一内容，以使终端设备基于第一内容执行免随机接入条件切换和/或条件LTM切换。
可选地，所述第一内容包括以下至少一项：
下行控制信息；
至少一候选小区的条件切换配置；
至少一候选小区的条件LTM切换配置；
服务小区TA值；
终端设备测量TA值标识；
补偿值。
可选地，所述装置还包括以下至少一项：
条件切换配置包括候选小区TA值为零的指示信息；
条件切换配置包括候选小区与服务小区的TA值相同的指示信息；
条件LTM切换配置包括候选LTM小区TA值为零的指示信息；
条件LTM切换配置包括候选LTM小区与服务小区的TA值相同的指示信息。
可选地，所述终端设备基于第一内容执行免随机接入条件切换和/或条件LTM切换，包括：
终端设备基于第一内容选取或确定满足第二条件的候选小区；
终端设备向满足第二条件的候选小区发送随机接入前导和/或参考信号，终端设备基于服务小区提供的随机接入前导和/或参考信号对应的反馈信息，执行免随机接入条件切换和/或条件LTM切换；和/或，终端设备测量和/或计算满足第二条件的候选小区的测量TA值，基于测量TA值，执行免随机接入条件切换和/或条件LTM切换。
可选地，所述装置还包括以下至少一项：
第二条件包括条件切换执行条件和/或条件LTM切换执行条件；
反馈信息携带于随机接入响应和/或LTM切换命令；
反馈信息包括候选小区TA值和/或候选LTM小区TA值；
下行控制信息包括索引信息、随机接入配置以及参考信号配置中的至少一项；
终端设备测量TA值标识用于触发终端设备测量和/或计算对应的候选小区的测量TA值；
测量TA值由终端设备通过服务小区TA值和/或补偿值进行测量和/或计算得到。
可选地，所述装置还包括以下至少一项：
条件切换配置包括条件切换配置索引、执行条件、候选小区配置参数以及候选小区TA值中的至少一项；
条件LTM切换配置包括条件LTM切换配置索引、LTM执行条件、候选LTM小区配置参数以及候选LTM小区TA值中的至少一项；
随机接入响应携带至少一候选小区和/或候选LTM小区的TA值、上行调度、配置调度信息以及无线临时识别中的至少一项；
LTM切换命令携带至少一候选LTM小区的TA值、上行调度、配置调度信息以及无线临时识别中的至少一项；
索引信息包括条件切换配置索引和/或条件LTM切换配置索引；
终端设备响应于满足测量条件，对至少一候选小区发起终端设备测量TA值。
可选地，所述装置还包括以下至少一项：
获取候选小区提供的候选小区TA值、补偿值、上行传输时延、上行调度、配置调度信息以及无线临时识别中的至少一项；
根据上行传输时延计算候选小区TA值；
接收候选小区发送的随机接入前导和/或参考信号对应的反馈信息；
发送随机接入前导和/或参考信号对应的反馈信息至终端设备。
本申请实施例提供的处理装置可以执行上述方法实施例所示的技术方案，其实现原理以及有益效果类似，此处不再进行赘述。
参阅图19，图19为本申请实施例提供的通信设备的结构示意图。如图19所示，本实施例所述的通信设备140可以是前述方法实施例中提到的终端设备(或者可用于终端设备的部件)或者网络设备(或者可用于网络设备的部件)。通信设备140可用于实现上述方法实施例中描述的对应于终端设备或者网络设备的方法，具体参见上述方法实施例中的说明。
通信设备140可以包括一个或多个处理器141，该处理器141也可以称为处理单元，可以实现一定的控制或者处理功能。处理器141可以是通用处理器或者专用处理器等。例如可以是基带处理器、或中央处理器。基带处理器可以用于对通信协议以及通信数据进行处理，中央处理器可以用于对通信设备进行控制，执行软件程序，处理软件程序的数据。
可选地，处理器141也可以存有指令143或者数据(例如中间数据)。可选地，指令143可以被处理器141运行，使得通信设备140执行上述方法实施例中描述的对应于终端设备或者网络设备的方法。
可选地，通信设备140可以包括电路，该电路可以实现前述方法实施例中发送或接收或者通信的功能。
可选地，通信设备140中可以包括一个或多个存储器142，其上可以存有指令144，该指令可在处理器141上被运行，使得通信设备140执行上述方法实施例中描述的方法。
可选地，存储器142中也可以是存储有数据。处理器141和存储器142可以单独设置，也可以集成在一起。
可选地，通信设备140还可以包括收发器145和/或天线146。处理器141可以称为处理单元，对通信设备140(终端设备或核心网设备或者无线接入网设备)进行控制。收发器145可以称为收发单元、收发机、收发电路、或者收发器等，用于实现通信设备140的收发功能。
可选地，若该通信设备140用于实现对应于上述各实施例中终端设备的操作时，例如，可以由收发器145接收第一内容；以及，由处理器141基于第一内容执行免随机接入条件切换和/或条件LTM切换。
可选地，处理器141和收发器145的具体实现过程可以参见上述各实施例的相关描述，此处不再赘述。
可选地，若该通信设备140用于实现对应于上述各实施例中网络设备的操作时，例如：可以由收发器145发送第一内容，以使终端设备基于第一内容执行免随机接入条件切换和/或条件LTM切换。
可选地，处理器141和收发器145的具体实现过程可以参见上述各实施例的相关描述，此处不再赘述。
本申请中描述的处理器141和收发器145可实现在IC(Integrated Circuit，集成电路)、模拟集成电路、RFIC(Radio Frequency Integrated Circuit，射频集成电路)、混合信号集成电路、ASIC(Application Specific Integrated Circuit，专用集成电路)、PCB(Printed Circuit Board，印刷电路板)、电子设备等上。该处理器141和收发器145也可以用各种集成电路工艺技术来制造，例如CMOS(Complementary Metal Oxide Semiconductor，互补金属氧化物半导体)、NMOS(N Metal-Oxide-Semiconductor，N型金属氧化物半导体)、PMOS(Positive channel Metal Oxide Semiconductor，P型金属氧化物半导体)、BJT(Bipolar Junction Transistor，双极结型晶体管)、双极CMOS(BiCMOS)、硅锗(SiGe)、砷化镓(GaAs)等。
本申请中，通信设备可以为终端设备(如手机)，也可以为网络设备(如基站)，具体需要根据上下文来加以确定，另外，终端设备可以以各种形式来实施。例如，本申请中描述的终端设备可以包括诸如手机、平板电脑、笔记本电脑、掌上电脑、个人数字助理(Personal Digital Assistant，PDA)、便捷式媒体播放器(Portable Media Player，PMP)、导航装置、可穿戴设备、智能手环、计步器等移动终端，以及诸如数字TV、台式计算机等固定终端设备。
虽然在以上的实施例描述中，通信设备以终端设备或者网络设备为例来描述，但本申请中描述的通信设备的范围并不限于上述终端设备或网络设备，而且通信设备的结构可以不受图19的限制。通信设备可以是独立的设备或者可以是较大设备的一部分。
本申请实施例还提供一种通信系统，包括：如上任一实施例中的终端设备；以及，如上任一实施例中的网络设备。
本申请实施例还提供一种通信设备，包括存储器、处理器，存储器上存储有处理程序，处理程序被处理器执行时实现上述任一实施例中的处理方法的步骤。
本申请中的通信设备，可以是终端设备(如手机)，也可以是网络设备(如基站)，具体所指，需要根据上下文加以明确。
本申请实施例还提供一种存储介质，存储介质上存储有处理程序，处理程序被处理器执行时实现上述任一实施例中的处理方法的步骤。
在本申请实施例提供的通信设备和存储介质的实施例中，可以包含任一上述处理方法实施例的全部技术特征，说明书拓展和解释内容与上述方法的各实施例基本相同，在此不再做赘述。
本申请实施例还提供一种计算机程序产品，计算机程序产品包括计算机程序代码，当计算机程序代码在计算机上运行时，使得计算机执行如上各种可能的实施方式中的方法。
本申请实施例还提供一种芯片，包括存储器和处理器，存储器用于存储计算机程序，处理器用于从存储器中调用并运行计算机程序，使得安装有芯片的设备执行如上各种可能的实施方式中的方法。
可以理解，上述场景仅是作为示例，并不构成对于本申请实施例提供的技术方案的应用场景的限定，本申请的技术方案还可应用于其他场景。例如，本领域普通技术人员可知，随着系统架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。上述本申请实施例序号仅仅为了描述，不代表实施例的优劣。本申请实施例方法中的步骤可以根据实际需要进行顺序调整、合并和删减。本申请实施例设备中的单元可以根据实际需要进行合并、划分和删减。在本申请中，对于相同或相似的术语概念、技术方案和/或应用场景描述，一般只在第一次出现时进行详细描述，后面再重复出现时，为了简洁，一般未再重复阐述，在理解本申请技术方案等内容时，对于在后未详细描述的相同或相似的术语概念、技术方案和/或应用场景描述等，可以参考其之前的相关详细描述。在本申请中，对各个实施例的描述都各有侧重，某个实施例中没有详述或记载的部分，可以参见其它实施例的相关描述。
本申请技术方案的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本申请记载的范围。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在如上的一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端设备(可以是手机，计算机，服务器，被控终端设备，或者网络设备等)执行本申请每个实施例的方法。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行计算机程序指令时，全部或部分地产生按照本申请实施例的流程或功能。计算机可以是通用计算机、专用计算机、计算机网络，或者其他可编程装置。计算机指令可以存储在存储介质中，或者从一个存储介质向另一个存储介质传输，例如，计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线)或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。可用介质可以是磁性介质，(例如，软盘、存储盘、磁带)、光介质(例如，DVD)，或者半导体介质(例如固态存储盘Solid State Disk(SSD))等。
以上仅为本申请的优选实施例，并非因此限制本申请的专利范围，凡是利用本申请说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本申请的专利保护范围内。

Claims (15)

  1. 一种处理方法，其中，包括步骤：
    S2：响应于满足第一条件，执行免随机接入条件切换和/或条件LTM切换。
  2. 如权利要求1所述的方法，其中，所述执行免随机接入条件切换和/或条件LTM切换，包括：
    基于服务小区提供的随机接入前导和/或参考信号对应的反馈信息，执行免随机接入条件切换和/或条件LTM切换；和/或，
    基于测量TA值，执行免随机接入条件切换和/或条件LTM切换。
  3. 如权利要求1所述的方法，其中，所述满足第一条件，包括以下至少一项：
    确定至少一候选小区满足条件切换执行条件；
    确定至少一候选小区满足条件LTM切换执行条件；
    接收到下行控制信息；
    接收到无线资源控制重配信令；
    条件切换配置携带了候选小区TA值为零的指示信息和/或候选小区与服务小区的TA值相同的指示信息；
    条件LTM切换配置携带了候选LTM小区TA值为零的指示信息和/或候选LTM小区与服务小区的TA值相同的指示信息。
  4. 如权利要求3所述的方法，其中，还包括以下至少一项：
    反馈信息携带于随机接入响应和/或LTM切换命令；
    反馈信息包括候选小区TA值和/或候选LTM小区TA值；
    下行控制信息包括索引信息、随机接入配置以及参考信号配置中的至少一项；
    无线资源控制重配信令包括服务小区TA值、至少一候选小区的条件切换配置、条件LTM切换配置、终端设备测量TA值标识以及补偿值中的至少一项。
  5. 如权利要求4所述的方法，其中，还包括以下至少一项：
    条件切换配置包括条件切换配置索引、执行条件、候选小区配置参数以及候选小区TA值中的至少一项；
    条件LTM切换配置包括条件LTM切换配置索引、LTM执行条件、候选LTM小区配置参数以及候选LTM小区TA值中的至少一项；
    随机接入响应携带至少一候选小区和/或候选LTM小区的TA值、上行调度、配置调度信息以及无线临时识别中的至少一项；
    LTM切换命令携带至少一候选LTM小区的TA值、上行调度、配置调度信息以及无线临时识别中的至少一项；
    索引信息包括条件切换配置索引和/或条件LTM切换配置索引；
    响应于满足测量条件，对至少一候选小区发起终端设备测量TA值。
  6. 如权利要求5所述的方法，其中，还包括以下至少一项：
    相应候选小区的系统消息根据候选小区配置参数和/或候选LTM小区配置参数获取；
    基于候选小区TA值和/或候选LTM小区TA值，执行免随机接入；
    基于条件切换配置执行条件切换评估；
    基于条件LTM切换配置执行条件LTM切换评估；
    应用候选小区配置参数和/或候选LTM小区配置参数；
    保存条件切换配置和/或条件LTM切换配置；
    测量条件包括至少一候选小区配置终端设备测量TA值标识，和/或，至少一候选小区配置的终端设备测量TA值标识与当前服务小区配置的终端设备测量TA值标识相同；
    测量TA值由终端设备通过服务小区TA值和/或补偿值进行测量和/或计算得到。
  7. 一种处理方法，其中，包括步骤：
    S1：发送第一内容，以使终端设备基于第一内容执行免随机接入条件切换和/或条件LTM切换。
  8. 如权利要求7所述的方法，其中，所述第一内容包括以下至少一项：
    下行控制信息；
    至少一候选小区的条件切换配置；
    至少一候选小区的条件LTM切换配置；
    服务小区TA值；
    终端设备测量TA值标识；
    补偿值。
  9. 如权利要求8所述的方法，其中，还包括以下至少一项：
    条件切换配置包括候选小区TA值为零的指示信息；
    条件切换配置包括候选小区与服务小区的TA值相同的指示信息；
    条件LTM切换配置包括候选LTM小区TA值为零的指示信息；
    条件LTM切换配置包括候选LTM小区与服务小区的TA值相同的指示信息。
  10. 如权利要求8所述的方法，其中，所述终端设备基于第一内容执行免随机接入条件切换和/或条件LTM切换，包括：
    终端设备基于第一内容选取或确定满足第二条件的候选小区；
    终端设备向满足第二条件的候选小区发送随机接入前导和/或参考信号，终端设备基于服务小区提供的随机接入前导和/或参考信号对应的反馈信息，执行免随机接入条件切换和/或条件LTM切换；和/或，终端设备测量和/或计算满足第二条件的候选小区的测量TA值，基于测量TA值，执行免随机接入条件切换和/或条件LTM切换。
  11. 如权利要求10所述的方法，其中，还包括以下至少一项：
    第二条件包括条件切换执行条件和/或条件LTM切换执行条件；
    反馈信息携带于随机接入响应和/或LTM切换命令；
    反馈信息包括候选小区TA值和/或候选LTM小区TA值；
    下行控制信息包括索引信息、随机接入配置以及参考信号配置中的至少一项；
    终端设备测量TA值标识用于触发终端设备测量和/或计算对应的候选小区的测量TA值；
    测量TA值由终端设备通过服务小区TA值和/或补偿值进行测量和/或计算得到。
  12. 如权利要求11所述的方法，其中，还包括以下至少一项：
    条件切换配置包括条件切换配置索引、执行条件、候选小区配置参数以及候选小区TA值中的至少一项；
    条件LTM切换配置包括条件LTM切换配置索引、LTM执行条件、候选LTM小区配置参数以及候选LTM小区TA值中的至少一项；
    随机接入响应携带至少一候选小区和/或候选LTM小区的TA值、上行调度、配置调度信息以及无线临时识别中的至少一项；
    LTM切换命令携带至少一候选LTM小区的TA值、上行调度、配置调度信息以及无线临时识别中的至少一项；
    索引信息包括条件切换配置索引和/或条件LTM切换配置索引；
    终端设备响应于满足测量条件，对至少一候选小区发起终端设备测量TA值。
  13. 如权利要求12所述的方法，其中，还包括以下至少一项：
    获取候选小区提供的候选小区TA值、补偿值、上行传输时延、上行调度、配置调度信息以及无线临时识别中的至少一项；
    根据上行传输时延计算候选小区TA值；
    接收候选小区发送的随机接入前导和/或参考信号对应的反馈信息；
    发送随机接入前导和/或参考信号对应的反馈信息至终端设备。
  14. 一种通信设备，其中，包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的处理程序，所述处理程序被所述处理器执行时实现如权利要求1或7所述的处理方法的步骤。
  15. 一种存储介质，其中，所述存储介质上存储有计算机程序，所述计算机程序被处理器执行时实现如权利要求1或7所述的处理方法的步骤。
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CN120075924A (zh) * 2025-03-07 2025-05-30 深圳传音控股股份有限公司 处理方法、通信设备及存储介质
CN120897242A (zh) * 2025-09-25 2025-11-04 荣耀终端股份有限公司 通信方法及相关装置

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