A cell handover method, cell handover device and storage medium

Abstract

This disclosure relates to a cell handover method, a cell handover apparatus, and a storage medium. The cell handover method, applied to a terminal, includes: performing a cell handover operation in response to a Conditional Handover (CHO) instruction; determining indication signaling, the indication signaling indicating at least one candidate target cell and a predefined rule for the terminal to perform cell handover; and determining a target cell for handover from among the at least one candidate target cell based on the rule. This disclosure enables the target cell for handover to be optimal, thereby improving the performance of CHO handover.

Description

Technical Field

[0001] This disclosure relates to the field of wireless communication technology, and in particular to a cell handover method, a cell handover device, and a storage medium. Background Technology

[0002] In next-generation communication technologies, Conditional Handover (CHO) instructions are introduced to reduce the number of connection failures during terminal movement. The network configures one or more candidate target cells for the terminal. When a target cell meets the configured conditions, the terminal executes the conditional handover instruction and autonomously selects a suitable target cell from the configured candidate cells for handover.

[0003] However, the target cell selected by the terminal may fail to be the optimal cell for handover due to load balancing issues, or handover may fail due to load balancing problems. Summary of the Invention

[0004] To overcome the problems existing in related technologies, this disclosure provides a cell handover method, a cell handover device, and a storage medium.

[0005] According to a first aspect of the present disclosure, a cell handover method is provided, applied to a terminal, the method comprising:

[0006] A signaling instruction is determined, which is used to indicate at least one candidate target cell and the rules for the terminal to perform cell handover; based on the rules, a target cell for handover is determined from the at least one candidate target cell.

[0007] In one embodiment, the indication signaling includes conditional reconfiguration signaling and conditional reload module list signaling;

[0008] The conditional reconfiguration signaling is used to indicate at least one candidate target cell; the conditional reload module list signaling is used to indicate the rules for cell handover by the terminal.

[0009] In one implementation, the rule includes:

[0010] Cell handover priority and / or cell signal quality strength.

[0011] In one implementation, determining the target cell for handover from the at least one candidate target cells based on the rule includes:

[0012] Based on the handover priority, a candidate target cell with the highest handover priority is determined; if there is only one candidate target cell with the highest handover priority, the candidate target cell with the highest handover priority is used as the target cell; if there are multiple candidate target cells with the highest handover priority, the candidate target cell with the highest signal quality strength is determined as the target cell for handover based on the signal quality strength of each candidate target cell.

[0013] In one implementation, the rules include the signal quality strength of the cell;

[0014] The step of determining the target cell for handover from the at least one candidate target cells based on the rule includes:

[0015] The signal quality strength of each candidate target cell in the at least one candidate target cell is determined, and the candidate target cell with the highest signal quality strength is determined as the target cell.

[0016] According to a second aspect of the present disclosure, a cell handover method is provided, applied to a network device, the method comprising:

[0017] The terminal determines at least one candidate target cell and a rule, the rule being used by the terminal to determine the target cell for handover among the at least one candidate target cell; and sends an indication signaling message, the indication signaling message being used to indicate at least one candidate target cell and the rule for the terminal to perform cell handover.

[0018] In one implementation, the rule includes:

[0019] Cell handover priority and / or cell signal quality strength.

[0020] In one embodiment, the indication signaling includes conditional reconfiguration signaling and conditional reload module list signaling;

[0021] The conditional reconfiguration signaling is used to indicate at least one candidate target cell; the conditional reload module list signaling is used to indicate the rules for cell handover by the terminal.

[0022] According to a third aspect of the present disclosure, a cell handover apparatus is provided, applied to a terminal, the apparatus comprising:

[0023] The receiving module is configured to determine indication signaling, the indication signaling being used to indicate at least one candidate target cell and the rules for the terminal to perform cell handover; the determining module is configured to determine the target cell for handover from the at least one candidate target cell based on the rules.

[0024] In one embodiment, the indication signaling includes conditional reconfiguration signaling and conditional reload module list signaling;

[0025] The conditional reconfiguration signaling is used to indicate at least one candidate target cell; the conditional reload module list signaling is used to indicate the rules for cell handover by the terminal.

[0026] In one implementation, the rule includes:

[0027] Cell handover priority and / or cell signal quality strength.

[0028] In one embodiment, the determining module is configured to:

[0029] Based on the handover priority, a candidate target cell with the highest handover priority is determined; if there is only one candidate target cell with the highest handover priority, the candidate target cell with the highest handover priority is used as the target cell; if there are multiple candidate target cells with the highest handover priority, the candidate target cell with the highest signal quality strength is determined as the target cell for handover based on the signal quality strength of each candidate target cell.

[0030] In one implementation, the rules include the signal quality strength of the cell;

[0031] The determining module is used for:

[0032] The signal quality strength of each candidate target cell in the at least one candidate target cell is determined, and the candidate target cell with the highest signal quality strength is determined as the target cell.

[0033] According to a fourth aspect of the present disclosure, a cell handover apparatus is provided, applied to a network device, the apparatus comprising:

[0034] The determining module is used to determine at least one candidate target cell and a rule, wherein the rule is used by the terminal to determine the target cell for handover among the at least one candidate target cell; the sending module is used to send indication signaling, wherein the indication signaling is used to indicate at least one candidate target cell and the rule for the terminal to perform cell handover.

[0035] In one implementation, the rule includes:

[0036] Cell handover priority and / or cell signal quality strength.

[0037] In one embodiment, the indication signaling includes conditional reconfiguration signaling and conditional reload module list signaling;

[0038] The conditional reconfiguration signaling is used to indicate at least one candidate target cell; the conditional reload module list signaling is used to indicate the rules for cell handover by the terminal.

[0039] According to a fifth aspect of the present disclosure, a cell handover apparatus is provided, comprising:

[0040] A processor; a memory for storing processor-executable instructions; wherein the processor is configured to: execute the cell handover method described in the first aspect or any embodiment of the first aspect, or the cell handover method described in the second aspect or any embodiment of the second aspect.

[0041] According to a sixth aspect of the present disclosure, a non-transitory computer-readable storage medium is provided, wherein when instructions in the storage medium are executed by a processor of a mobile terminal, the mobile terminal is enabled to perform the cell handover method described in the first aspect or any embodiment of the first aspect, or the mobile terminal is enabled to perform the cell handover method described in the second aspect or any embodiment of the second aspect.

[0042] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects: when a CHO instruction is configured for a terminal, a rule for handover target cell is configured for the terminal, so that the terminal determines the target cell for handover based on the rule, so that the target cell for handover is optimal, thereby improving the performance of CHO handover.

[0043] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0044] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0045] Figure 1 This is a diagram illustrating a communication system architecture for a network device and a terminal, according to an exemplary embodiment.

[0046] Figure 2 This is a flowchart illustrating a cell handover method according to an exemplary embodiment.

[0047] Figure 3 This is a flowchart illustrating a cell handover method according to an exemplary embodiment.

[0048] Figure 4 This is a flowchart illustrating a cell handover method according to an exemplary embodiment.

[0049] Figure 5 This is a flowchart illustrating a cell handover method according to an exemplary embodiment.

[0050] Figure 6 This is a block diagram of a cell handover device according to an exemplary embodiment.

[0051] Figure 7 This is a block diagram of a cell handover device according to an exemplary embodiment.

[0052] Figure 8 This is a block diagram illustrating an apparatus for cell handover according to an exemplary embodiment.

[0053] Figure 9 This is a block diagram illustrating an apparatus for cell handover according to an exemplary embodiment. Detailed Implementation

[0054] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0055] The word “if” as used here can be interpreted as “when”, “when”, or “in response to determination”.

[0056] In the new 3rd Generation Partnership Project (3GPP), Phase 16 introduced Conditional Handover (CHO) to reduce the number of connection failures during terminal mobility. This includes cell handover failures or connection failures prior to the handover being triggered. In a normal handover process, the network configures only one target cell for handover. With CHO, the network can pre-configure at least one candidate target cell. When connection conditions are good, the network can send a CHO command to the terminal in advance. After receiving the CHO command, the terminal can store it. When at least one of the configured candidate target cells meets the configured conditions, the terminal executes the stored CHO command, switches to the target cell, and connects to the target cell.

[0057] During the process of a terminal handover to a target cell, when selecting a target cell from at least one candidate target cells according to the CHO command, the terminal can autonomously choose one of the cells that meets the conditions for handover. However, the target cell autonomously selected by the terminal may not be the optimal target cell due to load balancing; or handover failure may occur. Therefore, it is necessary to optimize the target cell selection method during the CHO handover process. Based on this, this disclosure provides a cell handover method in which, when performing cell handover according to the configured CHO command, the terminal can determine the target cell for handover from at least one candidate target cell configured in the network based on the priority order of the candidate target cells and / or the quality of the signal reference signal of the candidate target cells.

[0058] Figure 1 This is a communication system architecture diagram of a network device and a terminal according to an exemplary embodiment. The cell handover method provided in this disclosure can be applied to... Figure 1 The communication system architecture diagram shown is as follows. Figure 1 As shown, network devices can be based on Figure 1 The architecture shown sends signaling.

[0059] Understandable Figure 1 The network devices and terminal communication system shown are for illustrative purposes only. A wireless communication system may also include other network devices, such as core network equipment, wireless relay equipment, and wireless backhaul equipment. Figure 1 Not shown in the diagram. This disclosure does not limit the number of network devices and terminals included in the wireless communication system.

[0060] It is further understood that the wireless communication system of this disclosure is a network providing wireless communication functionality. The wireless communication system can employ different communication technologies, such as code division multiple access (CDMA), wideband code division multiple access (WCDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal frequency-division multiple access (OFDMA), single-carrier frequency division multiple access (SC-FDMA), and carrier sense multiple access with collision avoidance. Based on factors such as capacity, speed, and latency, networks can be categorized as 2G networks, 3G networks, 4G networks, or future evolution networks, such as 5G networks. 5G networks can also be referred to as New Radio (NR). For ease of description, this disclosure may sometimes simply refer to the wireless communication network as a network.

[0061] Furthermore, the network device involved in this disclosure can also be referred to as a wireless access network device. This wireless access network device can be: a base station, an evolved Node B (eB) base station, a home base station, an access point (AP) in a Wireless Fidelity (WIFI) system, a wireless relay node, a wireless backhaul node, a transmission point (TP), or a transmission and reception point (TRP), etc. It can also be a gNB in ​​an NR system, or a component or part of a base station. When it is a vehicle-to-everything (V2X) communication system, the network device can also be an in-vehicle device. It should be understood that the specific technologies and device forms used in the embodiments of this disclosure are not limited.

[0062] Furthermore, the terminal involved in this disclosure can also be referred to as a terminal device, user equipment (UE), mobile station (MS), mobile terminal (MT), etc., and is a device that provides voice and / or data connectivity to a user. For example, a terminal can be a handheld device with wireless connectivity, an in-vehicle device, etc. Currently, some examples of terminals include: smartphones (Mobile Phones), pocket personal computers (PPCs), handheld computers, personal digital assistants (PDAs), laptops, tablets, wearable devices, or in-vehicle devices, etc. In addition, when it is a vehicle-to-everything (V2X) communication system, the terminal device can also be an in-vehicle device. It should be understood that the embodiments of this disclosure do not limit the specific technology or specific device form adopted by the terminal.

[0063] Figure 2 This is a flowchart illustrating a cell handover method according to an exemplary embodiment. For example... Figure 2 As shown, the cell handover method used in the terminal includes the following steps.

[0064] In step S11, an instruction signaling is determined.

[0065] Preferably, in this embodiment of the present disclosure, an indication signaling is determined in response to performing a cell handover operation based on a CHO instruction.

[0066] The instruction signaling is used to indicate at least one candidate target cell and the rules for the terminal to perform cell handover.

[0067] In this embodiment of the disclosure, when the terminal is configured with a CHO command, the terminal performs a cell handover operation based on the CHO command configured by the network device. In response to performing the cell handover operation based on the CHO command, the terminal determines at least one candidate target cell configured by the network device, and the rules for cell handover based on the at least one candidate target cell.

[0068] The rules can be predefined, based on agreements, or mutually agreed upon; no specific restrictions will be placed on the rules here.

[0069] In step S12, the target cell for handover is determined from at least one candidate target cell based on rules.

[0070] In this embodiment of the disclosure, the terminal performs a handover target cell operation based on the CHO instruction, determines the rules configured in the network device, and determines the target cell for handover from at least one candidate target cell according to the rules.

[0071] The cell handover method provided in this disclosure allows the terminal to determine the target cell for handover from among candidate target cells based on the rules configured in the network device, rather than determining it autonomously. This ensures that the target cell for handover is optimal, thereby improving the performance of CHO handover.

[0072] In some embodiments of this disclosure, the instruction signaling includes Conditional Reconfiguration signaling and Conditional Reload ModList signaling.

[0073] Among them, the conditional reconfiguration signaling is used to indicate at least one candidate target cell.

[0074] Among them, the conditional reload module list signaling is used to instruct the terminal on the rules for cell handover.

[0075] In some embodiments of this disclosure, the rules may be cell handover priority and / or cell signal quality strength. Cell signal commands may be determined based on measurements of reference signals. These reference signals may be related to synchronization signals, such as Synchronization Signal Reference Signal Received Power (SS-RSRP), Synchronization Signal Reference Signal Receiving Quality (SS-RSRQ), or Synchronization Signal to Interference Noise Ratio (SS-SINR). They may also be related to Channel State Information (CSI), such as CSI-RSRP, CSI-RSRQ, or CSI-SINR.

[0076] Figure 3 This is a flowchart illustrating a cell handover method according to an exemplary embodiment. For example... Figure 3 As shown, the cell handover method used in the terminal includes the following steps.

[0077] In step S21, the candidate target cell with the highest handover priority is determined based on the handover priority.

[0078] In this embodiment of the disclosure, if the rules include the cell's handover priority and the cell's signal quality strength, the terminal selects the candidate target cell with the highest handover priority based on the handover priority. The candidate target cell selected based on the handover priority can be one or more.

[0079] In step S22, in response to the fact that there is only one candidate target cell with the highest handover priority, the candidate target cell with the highest handover priority is selected as the target cell.

[0080] In some embodiments of this disclosure, if there is only one candidate target cell selected based on handover priority, the terminal can directly determine the candidate target cell as the target cell and switch to access the determined target cell.

[0081] In step S23, in response to the fact that there are multiple candidate target cells with the highest handover priority, the candidate target cell with the highest signal quality strength is determined as the target cell for handover based on the signal quality strength of each candidate target cell.

[0082] In some embodiments of this disclosure, if there are multiple candidate target cells selected based on handover priority, the signal quality strength measurement results of each candidate target cell can be further determined and sorted. Based on the sorting of the signal quality strength of each candidate target cell, the candidate target cell with the highest signal quality strength among the multiple candidate target cells with the highest priority is determined as the target cell for handover.

[0083] Figure 4 This is a flowchart illustrating a cell handover method according to an exemplary embodiment. For example... Figure 4 As shown, the cell handover method used in the terminal includes the following steps.

[0084] In step S31, the signal quality strength of each candidate target cell in at least one candidate target cell is determined, and the candidate target cell with the highest signal quality strength is determined as the target cell.

[0085] In some embodiments of this disclosure, if the rules configured by the network device for the terminal include the signal quality strength of a cell, the terminal obtains the measurement results of the signal quality strength of each candidate target cell in at least one candidate target cell, and sorts the measurement results. The cell with the highest measured signal quality strength is determined and identified as the target cell.

[0086] Based on the same / similar concept, embodiments of this disclosure also provide a cell handover method.

[0087] Figure 5 This is a flowchart illustrating a cell handover method according to an exemplary embodiment. For example... Figure 5As shown, the cell handover method is used in network devices and includes the following steps.

[0088] In step S41, at least one candidate target cell and rule are determined.

[0089] Preferably, in this embodiment of the present disclosure, an indication signaling is determined in response to performing a cell handover operation based on a CHO instruction. In this embodiment of the present disclosure, if the network device determines that a CHO instruction has been configured for the terminal, it further determines at least one candidate target cell and rule configured for the terminal.

[0090] The rules can be predefined, based on agreements, or mutually agreed upon; no specific restrictions will be placed on the rules here.

[0091] The rules are used by the terminal to determine the target cell for handover among at least one candidate target cell.

[0092] In step S42, an instruction signal is sent.

[0093] The instruction signaling is used to indicate at least one candidate target cell and the rules for the terminal to perform cell handover.

[0094] In this embodiment of the disclosure, the network device sends an indication signaling message to instruct the terminal to determine the target cell for handover based on at least one candidate target cell in the indication signaling message and the rules for cell handover performed by the terminal.

[0095] The cell handover method provided in this disclosure allows the terminal to determine the target cell for handover from among candidate target cells based on the rules configured in the network device, rather than determining it autonomously. This ensures that the target cell for handover is optimal, thereby improving the performance of CHO handover.

[0096] In some embodiments of this disclosure, the indication signaling includes conditional reconfiguration signaling and conditional reload module list signaling.

[0097] Among them, the conditional reconfiguration signaling is used to indicate at least one candidate target cell.

[0098] Among them, the conditional reload module list signaling is used to instruct the terminal on the rules for cell handover.

[0099] In some embodiments of this disclosure, the rules may be cell handover priority and / or cell signal quality strength. The cell signal command may be determined based on measurements of a reference signal. This reference signal may be a reference signal associated with a synchronization signal, such as SS-RSRP, SS-RSRQ, or SS-SINR; or it may be a reference signal associated with CSI, such as CSI-RSRP, CSI-RSRQ, or CSI-SINR.

[0100] Based on the same concept, embodiments of this disclosure also provide a cell handover device.

[0101] It is understood that the cell handover device provided in this disclosure includes hardware structures and / or software modules corresponding to each function in order to achieve the above-mentioned functions. In conjunction with the units and algorithm steps of the various examples disclosed in this disclosure, this disclosure can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed by hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the technical solutions of this disclosure.

[0102] Figure 6 This is a block diagram illustrating a cell handover apparatus according to an exemplary embodiment. (Refer to...) Figure 6 The cell handover device 100 is applied to a terminal and includes a receiving module 101 and a determining module 102.

[0103] The receiving module 101 is used to determine indication signaling, which indicates at least one candidate target cell and the rules for cell handover by the terminal. The determining module 102 is used to determine the target cell for handover from at least one candidate target cell based on the rules.

[0104] Preferably, in this embodiment of the present disclosure, the receiving module 101 determines the indication signaling in response to performing a cell handover operation based on the CHO instruction.

[0105] In this embodiment of the disclosure, the indication signaling includes conditional reconfiguration signaling and conditional reload module list signaling.

[0106] Conditional reconfiguration signaling is used to indicate at least one candidate target cell. Conditional reload module list signaling is used to instruct the terminal on the rules for cell handover.

[0107] In this embodiment of the disclosure, the rules include:

[0108] Cell handover priority and / or cell signal quality strength.

[0109] In this embodiment of the disclosure, the determining module 102 is configured to determine the candidate target cell with the highest handover priority based on the handover priority. If there is only one candidate target cell with the highest handover priority, it is selected as the target cell. If there are multiple candidate target cells with the highest handover priority, the candidate target cell with the highest signal quality strength is determined as the target cell for handover based on the signal quality strength of each candidate target cell.

[0110] In this embodiment of the disclosure, the rules include the signal quality strength of the cell.

[0111] The determining module 102 is used to determine the signal quality strength of each candidate target cell in at least one candidate target cell, and to determine the candidate target cell with the highest signal quality strength as the target cell.

[0112] Figure 7 This is a block diagram illustrating a cell handover apparatus according to an exemplary embodiment. (Refer to...) Figure 7 The cell handover device 200 is applied to network equipment and includes a determination module 201 and a transmission module 202.

[0113] The determination module 201 is used to determine at least one candidate target cell and a rule, wherein the rule is used by the terminal to determine the target cell for handover among at least one candidate target cell.

[0114] Preferably, in this embodiment of the present disclosure, the determining module 201 determines the indication signaling in response to performing a cell handover operation based on the CHO instruction.

[0115] The sending module 202 is used to send indication signaling, which indicates at least one candidate target cell and the rules for the terminal to perform cell handover.

[0116] In this embodiment of the disclosure, the rules include:

[0117] Cell handover priority and / or cell signal quality strength.

[0118] In this embodiment of the disclosure, the indication signaling includes conditional reconfiguration signaling and conditional reload module list signaling.

[0119] Conditional reconfiguration signaling is used to indicate at least one candidate target cell. Conditional reload module list signaling is used to instruct the terminal on the rules for cell handover.

[0120] Regarding the apparatus in the above embodiments, the specific manner in which each module performs its operation has been described in detail in the embodiments related to the method, and will not be elaborated upon here.

[0121] Figure 8 This is a block diagram illustrating an apparatus 300 for cell handover according to an exemplary embodiment. For example, apparatus 300 may be a mobile phone, computer, digital broadcast terminal, messaging device, game console, tablet device, medical device, fitness equipment, personal digital assistant, etc.

[0122] Reference Figure 3The device 300 may include one or more of the following components: processing component 302, memory 304, power component 306, multimedia component 308, audio component 310, input / output (I / O) interface 312, sensor component 314, and communication component 316.

[0123] Processing component 302 typically controls the overall operation of device 300, such as operations associated with display, telephone calls, data communication, camera operation, and recording. Processing component 302 may include one or more processors 320 to execute instructions to perform all or part of the steps of the methods described above. Furthermore, processing component 302 may include one or more modules to facilitate interaction between processing component 302 and other components. For example, processing component 302 may include a multimedia module to facilitate interaction between multimedia component 308 and processing component 302.

[0124] Memory 304 is configured to store various types of data to support the operation of device 300. Examples of such data include instructions for any application or method operating on device 300, contact data, phonebook data, messages, pictures, videos, etc. Memory 304 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0125] The power supply component 306 provides power to the various components of the device 300. The power supply component 306 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power to the device 300.

[0126] Multimedia component 308 includes a screen that provides an output interface between the device 300 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touchscreen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors may sense not only the boundaries of the touch or swipe action but also the duration and pressure associated with the touch or swipe operation. In some embodiments, multimedia component 308 includes a front-facing camera and / or a rear-facing camera. When the device 300 is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or the rear-facing camera may receive external multimedia data. Each front-facing camera and rear-facing camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0127] Audio component 310 is configured to output and / or input audio signals. For example, audio component 310 includes a microphone (MIC) configured to receive external audio signals when device 300 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 304 or transmitted via communication component 316. In some embodiments, audio component 310 also includes a speaker for outputting audio signals.

[0128] I / O interface 312 provides an interface between processing component 302 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0129] Sensor assembly 314 includes one or more sensors for providing status assessments of various aspects of device 300. For example, sensor assembly 314 may detect the on / off state of device 300, the relative positioning of components such as the display and keypad of device 300, changes in the position of device 300 or a component of device 300, the presence or absence of user contact with device 300, the orientation or acceleration / deceleration of device 300, and temperature changes of device 300. Sensor assembly 314 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 314 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 314 may also include an accelerometer, a gyroscope, a magnetometer, a pressure sensor, or a temperature sensor.

[0130] Communication component 316 is configured to facilitate wired or wireless communication between device 300 and other devices. Device 300 can access wireless networks based on communication standards, such as WiFi, 2G, or 3G, or combinations thereof. In one exemplary embodiment, communication component 316 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 316 also includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0131] In an exemplary embodiment, the apparatus 300 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the methods described above.

[0132] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 304 including instructions, which can be executed by a processor 320 of the device 300 to perform the above-described method. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc.

[0133] Figure 9 This is a block diagram illustrating an apparatus 400 for cell handover according to an exemplary embodiment. For example, apparatus 400 may be provided as a server. (Refer to...) Figure 9 The apparatus 400 includes a processing component 422, which further includes one or more processors, and memory resources represented by memory 432 for storing instructions, such as application programs, that can be executed by the processing component 422. The application programs stored in memory 432 may include one or more modules, each corresponding to a set of instructions. Furthermore, the processing component 422 is configured to execute instructions to perform the methods described above.

[0134] Device 400 may also include a power supply component 426 configured to perform power management of device 400, a wired or wireless network interface 450 configured to connect device 400 to a network, and an input / output (I / O) interface 458. Device 400 may operate on an operating system stored in memory 432, such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™, or similar.

[0135] It can be further understood that in this disclosure, "multiple" refers to two or more, and other quantifiers are similar. "And / or" describes the relationship between related objects, indicating that three relationships can exist; for example, A and / or B can represent: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. The singular forms "a," "the," and "the" are also intended to include the plural forms unless the context clearly indicates otherwise.

[0136] It is further understood that the terms "first," "second," etc., are used to describe various types of information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another, and do not indicate a specific order or degree of importance. In fact, the expressions "first," "second," etc., are completely interchangeable. For example, without departing from the scope of this disclosure, first information can also be referred to as second information, and similarly, second information can also be referred to as first information.

[0137] It is further understood that although operations are described in a specific order in the accompanying drawings in this disclosure, this should not be construed as requiring these operations to be performed in the specific order or serial order shown, or requiring all of the shown operations to obtain the desired result. In certain environments, multitasking and parallel processing may be advantageous.

[0138] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0139] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A cell handover method, characterized in that, Applied to a terminal, the method includes: Determine the indication signaling, which is used to indicate at least one candidate target cell and the rules for the terminal to perform cell handover; Based on the rules, a target cell for handover is determined from the at least one candidate target cell; The rules include: The cell's handover priority and / or the cell's signal quality strength, the cell's signal quality being determined based on the measurement results of a reference signal, which is a reference signal related to a synchronization signal or a reference signal related to channel state information; The step of determining the target cell for handover from the at least one candidate target cells based on the rule includes: Based on the handover priority, the candidate target cell with the highest handover priority is determined; In response to the fact that there is only one candidate target cell with the highest handover priority, the candidate target cell with the highest handover priority is selected as the target cell; Since there are multiple candidate target cells with the highest handover priority, the candidate target cell with the highest signal quality strength is determined as the target cell for handover based on the signal quality strength of each candidate target cell; If the rule includes the signal quality strength of the cell, the measurement result of the signal quality strength of each candidate target cell in at least one candidate target cell is obtained, and the measurement results are sorted so that the candidate target cell corresponding to the highest signal quality strength after sorting is selected as the target cell.

2. The cell handover method according to claim 1, characterized in that, The instruction signaling includes conditional reconfiguration signaling and conditional reload module list signaling; The conditional reconfiguration signaling is used to indicate at least one candidate target cell; The conditional reload module list signaling is used to instruct the terminal on the rules for cell handover.

3. The cell handover method according to claim 1, characterized in that, The rules include the signal quality strength of the cell; The step of determining the target cell for handover from the at least one candidate target cells based on the rule includes: The signal quality strength of each candidate target cell in the at least one candidate target cell is determined, and the candidate target cell with the highest signal quality strength is determined as the target cell.

4. A cell handover method, characterized in that, Applied to network devices, the method includes: In response to the terminal performing a cell handover operation based on the Conditional Handover (CHO) instruction, at least one candidate target cell and a rule are determined, wherein the rule is used by the terminal to determine the target cell for handover among the at least one candidate target cell; Send an indication signaling message, which is used to indicate at least one candidate target cell and the rules for the terminal to perform cell handover; The rules include: The cell's handover priority and / or the cell's signal quality strength, the cell's signal quality being determined based on the measurement results of a reference signal, which is a reference signal related to a synchronization signal or a reference signal related to channel state information; The rule is used for: the terminal to determine the candidate target cell with the highest handover priority based on the handover priority; in response to the fact that there is only one candidate target cell with the highest handover priority, the candidate target cell with the highest handover priority is used as the target cell; in response to the fact that there are multiple candidate target cells with the highest handover priority, the candidate target cell with the highest signal quality strength is determined as the target cell for handover based on the signal quality strength of each candidate target cell; if the rule includes the signal quality strength of the cell, the measurement result of the signal quality strength of each candidate target cell in at least one candidate target cell is obtained, and the measurement results are sorted so that the candidate target cell corresponding to the highest signal quality strength after sorting is used as the target cell.

5. The cell handover method according to claim 4, characterized in that, The instruction signaling includes conditional reconfiguration signaling and conditional reload module list signaling; The conditional reconfiguration signaling is used to indicate at least one candidate target cell; The conditional reload module list signaling is used to instruct the terminal on the rules for cell handover.

6. A cell handover device, characterized in that, Applied to a terminal, the device includes: The receiving module is used to determine the indication signaling, which is used to indicate at least one candidate target cell and the rules for the terminal to perform cell handover. The determination module is configured to determine the target cell for handover from the at least one candidate target cells based on the rules. The rules mentioned therein include: The cell's handover priority and / or the cell's signal quality strength, the cell's signal quality being determined based on the measurement results of a reference signal, which is a reference signal related to a synchronization signal or a reference signal related to channel state information; The determining module is specifically used for: Based on the handover priority, the candidate target cell with the highest handover priority is determined; In response to the fact that there is only one candidate target cell with the highest handover priority, the candidate target cell with the highest handover priority is selected as the target cell; Since there are multiple candidate target cells with the highest handover priority, the candidate target cell with the highest signal quality strength is determined as the target cell for handover based on the signal quality strength of each candidate target cell; If the rule includes the signal quality strength of the cell, the measurement result of the signal quality strength of each candidate target cell in at least one candidate target cell is obtained, and the measurement results are sorted so that the candidate target cell corresponding to the highest signal quality strength after sorting is selected as the target cell.

7. A cell handover device, characterized in that, Applied to network devices, the device includes: A determination module is used to determine at least one candidate target cell and a rule, wherein the rule is used by the terminal to determine the target cell for handover among the at least one candidate target cell; The sending module is used to send indication signaling, which indicates at least one candidate target cell and the rules for the terminal to perform cell handover. The rules include: The cell's handover priority and / or the cell's signal quality strength, the cell's signal quality being determined based on the measurement results of a reference signal, which is a reference signal related to a synchronization signal or a reference signal related to channel state information; The rule is used for: the terminal to determine the candidate target cell with the highest handover priority based on the handover priority; in response to the fact that there is only one candidate target cell with the highest handover priority, the candidate target cell with the highest handover priority is used as the target cell; in response to the fact that there are multiple candidate target cells with the highest handover priority, the candidate target cell with the highest signal quality strength is determined as the target cell for handover based on the signal quality strength of each candidate target cell; if the rule includes the signal quality strength of the cell, the measurement result of the signal quality strength of each candidate target cell in at least one candidate target cell is obtained, and the measurement results are sorted so that the candidate target cell corresponding to the highest signal quality strength after sorting is used as the target cell.

8. A cell handover device, characterized in that, include: processor, Memory used to store processor-executable instructions; The processor is configured to execute the cell handover method according to any one of claims 1-3, or to execute the cell handover method according to any one of claims 4-5.

9. A non-transitory computer-readable storage medium, wherein when the instructions in the storage medium are executed by a processor of a terminal, the terminal is able to perform the cell handover method according to any one of claims 1-3, or when the instructions in the storage medium are executed by a processor of a network device, the network device is able to perform the cell handover method according to any one of claims 4-5.

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