A communication method, apparatus, storage medium, communication device, and chip.

Abstract

This application discloses a communication method, apparatus, communication device, and chip, relating to the field of communication processing technology. The method includes: firstly, receiving an RRC reconfiguration message sent by a network device, the RRC reconfiguration message including a conditional reconfiguration message; then, saving the target cell for conditional handover in the conditional reconfiguration message; and then, during the cell selection process of the connection reconstruction procedure, determining the target cell for terminal connection reconstruction based on the saved target cell for conditional handover. This application increases the probability of selecting a target cell for conditional handover during the cell selection process, thereby increasing the probability of converting the reconstruction procedure into a conditional handover procedure. The connection reconstruction process involves less signaling interaction and lower latency, thus improving the connection reconstruction efficiency of the terminal and enhancing the user experience.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a communication method, apparatus, storage medium, communication device, and chip. Background Technology

[0002] If the terminal's Radio Resource Control (RRC) connection fails, the connection can be restored through the connection reconstruction process, ensuring continued service.

[0003] Currently, the connection reconstruction process requires interaction between the terminal and network devices, which results in a long latency and affects the efficiency of connection reconstruction. Summary of the Invention

[0004] In view of this, this application provides a communication method, apparatus, storage medium, communication device and chip, the main purpose of which is to improve the technical problem of long latency and low connection reconstruction efficiency in the current terminal connection reconstruction process.

[0005] In a first aspect, this application provides a communication method, including:

[0006] Receive an RRC reconfiguration message sent by a network device, wherein the RRC reconfiguration message includes a conditional reconfiguration message;

[0007] Save the target cell for conditional handover in the conditional reconfiguration message;

[0008] During the cell selection process of the connection reconstruction procedure, the target cell for terminal connection reconstruction is determined based on the target cell switched according to the saved conditions.

[0009] Optionally, determining the target cell for terminal connection reconstruction based on the saved target cell for conditional handover includes:

[0010] From the saved target cells for the condition switching, select the cell whose cell measurement results meet the preset camping conditions as the target cell for the terminal connection reconstruction.

[0011] Optionally, selecting a cell whose cell measurement results meet preset camping conditions from the saved target cells for conditional handover as the target cell for terminal connection reconstruction includes:

[0012] From the saved target cells for the conditional handover, select cells whose Reference Signal Received Power (RSRP) is greater than a first preset threshold and / or whose Reference Signal Received Quality (RSRQ) is greater than a second preset threshold, and use these cells as the target cells for the terminal connection reconstruction.

[0013] Optionally, after selecting a cell whose cell measurement results meet preset camping conditions from the saved target cells for conditional switching as the target cell for terminal connection reconstruction, the method further includes:

[0014] The terminal is triggered to perform a conditional handover process, causing the terminal to switch to the target cell.

[0015] Optionally, the target cell for conditional handover in the conditional reconfiguration message is saved, including:

[0016] Save the configuration of the target cell for conditional handover in the conditional reconfiguration message to the conditional reconfiguration variable;

[0017] The step of determining the target cell for terminal connection reconstruction based on the saved target cell for switching according to the conditions includes:

[0018] The target cell for terminal connection reconstruction is determined based on the target cell for conditional handover stored in the conditional reconfiguration variables.

[0019] Optionally, the conditional reconfiguration attempt in the conditional reconfiguration message is enabled.

[0020] Secondly, this application provides a communication device, comprising:

[0021] The receiving module is configured to receive RRC reconfiguration messages sent by network devices, wherein the RRC reconfiguration messages include conditional reconfiguration messages;

[0022] The save module is configured to save the target cell for conditional handover in the conditional reconfiguration message;

[0023] The determination module is configured to determine the target cell for terminal connection reconstruction during the cell selection process of the connection reconstruction procedure, based on the target cell switched according to the saved conditions.

[0024] Thirdly, this application provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the communication method described in the first aspect.

[0025] Fourthly, this application provides a communication device, including a storage medium, a processor, and a computer program stored on the storage medium and executable on the processor, wherein the processor executes the computer program to implement the communication method described in the first aspect.

[0026] Fifthly, this application provides a chip including at least one processor and a communication interface; the communication interface is used to receive signals input to the chip or signals output from the chip, and the processor communicates with the communication interface and implements the communication method described in the first aspect through logic circuits or executing code instructions.

[0027] By employing the above technical solution, this application provides a communication method, apparatus, storage medium, communication device, and chip. Specifically, it first receives an RRC reconfiguration message sent by a network device, which includes a conditional reconfiguration message; then, it saves the target cell for conditional handover in the conditional reconfiguration message; and then, during the cell selection process in the connection reconstruction procedure, it determines the target cell for terminal connection reconstruction based on the saved target cell for conditional handover. Compared with existing technologies, this application can configure a reconfiguration message containing conditional handover to the terminal through a network device. During the connection reconstruction process, it combines reconstruction and conditional handover according to protocol requirements to select the target cell for terminal connection reconstruction. This increases the probability of selecting a target cell for conditional handover during the cell selection process, thereby increasing the probability of transforming the reconstruction process into a conditional handover process. The signaling interaction during the connection reconstruction process is reduced, and the latency is lower, thus improving the connection reconstruction efficiency of the terminal, i.e., improving the efficiency of link recovery and enhancing the user experience.

[0028] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0029] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0030] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 A flowchart illustrating a communication method provided in an embodiment of this application is shown;

[0032] Figure 2 A flowchart illustrating a communication method provided in an embodiment of this application is shown;

[0033] Figure 3This paper shows a schematic diagram of the structure of a communication device provided in an embodiment of this application;

[0034] Figure 4 This paper shows a schematic diagram of the structure of a communication device provided in an embodiment of this application;

[0035] Figure 5 A schematic diagram of the structure of a chip provided in an embodiment of this application is shown. Detailed Implementation

[0036] The embodiments of this application will now be described in more detail with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0037] To address the current technical issues of long latency and low connection reconstruction efficiency during terminal connection re-establishment, this embodiment provides a communication method, such as... Figure 1 As shown, the method includes:

[0038] Step 101: Receive the RRC reconfiguration message sent by the network device. The RRC reconfiguration message includes a conditional reconfiguration message.

[0039] The execution subject of this embodiment can be a communication device or communication equipment, which can be configured on the terminal device side, such as an electronic device or a chip.

[0040] In some examples, the method shown in this embodiment can be executed by a terminal device, which may be referred to as a terminal, user equipment (UE), mobile station (MS), mobile terminal (MT), etc. The terminal device can also be a car with communication capabilities, a smart car, a mobile phone, a wearable device, a tablet computer, a computer with wireless transceiver capabilities, a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, a wireless terminal device in a smart home, or even a chip or chip system, etc. The embodiments of this application do not limit the specific technology or device form used in the terminal device.

[0041] In some embodiments, the network device may be a base station, satellite, or other equipment. This application does not specifically limit the network device to any particular entity on the network side used for transmitting or receiving signals. For example, the network may be a communication satellite, an evolved NodeB (eNB), a transmission reception point (TRP), a next-generation NodeB (gNB) in an NR system, a base station in other future mobile communication systems, or an access node in a wireless fidelity (WiFi) system. The embodiments of this disclosure do not limit the specific technology or device form used in the network device.

[0042] The network device provided in this embodiment can be composed of a central unit (CU) and a distributed unit (DU). The CU can also be called a control unit. By adopting the CU-DU structure, the protocol layer of the network device, such as a base station, can be separated. Some of the protocol layer functions are centrally controlled by the CU, while the remaining part or all of the protocol layer functions are distributed in the DU, which is centrally controlled by the CU.

[0043] When a terminal experiences an RRC connection failure in the RRC connection state of fifth-generation (5G) mobile communication technology due to an underlying link anomaly or an error such as the maximum number of retransmissions, the 5G RRC will restore the connection through a reconstruction process to ensure continued service. The RRC reconfiguration message can be a 5G air interface message and can be used in the 5G network RRC connection state content.

[0044] The conditional reconfiguration message in the RRC reconfiguration message is an information element in the air interface message, embedded in a reconfiguration message for conditional reconfiguration. For example, in a 5G system, a terminal can use a network-pre-configured condition and a corresponding candidate configuration, where a candidate configuration may include one or more cells. When the terminal meets the pre-configured condition (e.g., a specific measurement event), the terminal changes its serving cell to one of the cells included in the candidate configuration. This condition-triggered mobility process may include a Conditional Handover (CHO). In this embodiment, the conditional reconfiguration message may include the target cells for these conditional handovers.

[0045] Step 102: Save the target cell for conditional handover in the conditional reconfiguration message.

[0046] In some examples, conditional handover is an enhancement to 5G mobility technology. The network device sends the handover conditions and a reconfiguration message carrying the handover target cell configuration to the terminal in advance. When the conditions for conditional handover are met, conditional handover is triggered.

[0047] Compared to normal handover, conditional handover prevents the terminal from failing to receive the handover message due to rapid channel degradation caused by anomalies such as underlying link failures or reaching the maximum number of retransmissions, thus preventing the network from triggering a handover and causing underlying link interruption. Conditional handover also reduces message interaction between the terminal and network devices during the handover process, resulting in lower latency and faster handover speed.

[0048] Step 103: During the cell selection process of the connection reconstruction procedure, determine the target cell for terminal connection reconstruction based on the saved target cell switching conditions.

[0049] It should be noted that the reconstruction process has been optimized in 3GPP Technical Specifications (TS) 38.331, which combines reconstruction with conditional handover. Specifically, in the terminal reconstruction process, if the cell selected during cell selection is the target cell for conditional handover, the conditional handover process can be directly triggered to restore the link without the need for reconstruction and network interaction.

[0050] Furthermore, in the 3GPP TS 38.331 protocol, if an abnormality occurs in the underlying link or the maximum number of retransmissions, causing an RRC connection abnormality and triggering terminal connection reconstruction, and if the network has configured conditional handover for the terminal, and the conditional handover includes a conditional reconfiguration attempt message, and the cell selected by the terminal during the cell selection process for reconstruction happens to be one of the target cells for conditional handover, then the stored conditional reconfiguration will be applied to the selected cell, and the handover process will be executed.

[0051] In some examples, the cell selection process during reconstruction uses a conventional cell selection logic based on signal strength. Reconstruction and conditional handover can only be combined to leverage the advantages of conditional handover if the selected cell happens to be one of the target cells for conditional handover. However, cell selection based on signal strength has a relatively low probability of selecting a target cell for conditional handover (if the target cell's signal strength is lower than other neighboring cells, other neighboring cells will be selected). If no target cell for conditional handover is selected, only a normal reconstruction process can be executed, resulting in increased signaling interaction, higher latency, lower link recovery efficiency, and a reduced user experience.

[0052] Compared to the above example, this embodiment can configure a reconfiguration message containing conditional handover to the terminal via network devices. During the connection reconstruction process, reconstruction and conditional handover are combined according to protocol requirements to select the target cell for terminal connection reconstruction. This increases the probability of selecting the target cell for conditional handover during cell selection, thereby increasing the probability of transforming the reconstruction process into a conditional handover process. The signaling interaction during connection reconstruction is reduced, latency is lower, and thus the efficiency of link recovery is improved, enhancing the user experience.

[0053] Furthermore, to illustrate the specific implementation process of the method in this embodiment, this embodiment provides the following: Figure 2 The specific method shown includes:

[0054] Step 201: Receive the RRC reconfiguration message sent by the network device. The RRC reconfiguration message includes a conditional reconfiguration message.

[0055] For example, when a terminal is in connected state, it receives one or more Radio Resource Control (RRC) reconfiguration messages (referred to as RRC reconfiguration messages, such as RRCReconfiguration messages) sent by a network device, which are used for the connected state content of 5G network RRC. The RRC reconfiguration message includes a conditional reconfiguration message, for example, the conditional reconfiguration can be embedded in an RRC reconfiguration message for conditional reconfiguration.

[0056] Optionally, step 201 may specifically include setting the attempt conditional reconfiguration in the conditional reconfiguration message to an enabled state.

[0057] For example, the attemptCondReconfig-r16 option in the conditionalReconfiguration message is set to TRUE, i.e., enabled. The attemptCondReconfiguration option indicates the following behavior: if the cell selected by the terminal during the cell selection process during reconstruction happens to be one of the target cells for conditional handover, the stored condRadio Resource Control Reconfiguration (condRRCReconfig) is applied to the selected cell, and the handover procedure is executed.

[0058] Step 202: Save the target cell for conditional handover in the conditional reconfiguration message.

[0059] Optionally, step 202 may specifically include: saving the configuration of the target cell for conditional handover in the conditional reconfiguration message to the conditional reconfiguration variable.

[0060] For example, the terminal saves the target cell for conditional handover from the conditionalReconfiguration message to the conditional reconfiguration variable (VarConditionalReconfig). The conditional reconfiguration variable is a local variable used to store the conditional reconfiguration message locally on the terminal.

[0061] Step 203: In the cell selection process of the connection reconstruction process, select the cell whose cell measurement results meet the preset camping conditions from the saved target cells for condition switching as the target cell for terminal connection reconstruction.

[0062] Optionally, step 203 may specifically include: selecting from the saved target cells for conditional handover that the reference signal received power (RSRP) is greater than a first preset threshold and / or the reference signal received quality (RSRQ) is greater than a second preset threshold, as the target cell for terminal connection reconstruction.

[0063] In this embodiment of the disclosure, for a terminal configured with conditional handover, when connection reconstruction is triggered, if a target cell for conditional handover exists in the neighboring cells and satisfies the conditions that RSRP is greater than a first preset threshold and / or RSRQ is greater than a second preset threshold, then the target cell for conditional handover is selected. This handover selection process combines reconstruction with conditional handover, leveraging the advantages of conditional handover and increasing the probability of selecting a target cell for conditional handover during the cell selection process of reconstruction.

[0064] Optionally, based on the configuration of the target cell for conditional handover in the conditional reconfiguration message in step 202, step 203 may specifically include: determining the target cell for terminal connection reconstruction according to the target cell for conditional handover saved in the conditional reconfiguration variable.

[0065] For example, the `condRRCReconfig` variable in the conditional reconfiguration variable is also a reconfiguration message, which includes a `reconfigurationWithSync` message. The `reconfigurationWithSync` message can be used to indicate information about the target cell for conditional handover during the handover process. The conditional reconfiguration variable can contain one or more target cells for conditional handover.

[0066] Step 204: Trigger the terminal to perform the conditional handover process, so that the terminal switches to the target cell.

[0067] For example, in 5G RRC connected state, if an RRC connection failure occurs due to an underlying link anomaly or the maximum number of retransmissions, a reconstruction process is initiated. During the cell selection process of the reconstruction process, the terminal prioritizes selecting the conditional handover target cell stored in the conditional reconfiguration variables, and ensures that the cell's measurement results meet the camping conditions of cells where RSRP is greater than a first preset threshold and / or RSRQ is greater than a second preset threshold. The terminal selects a cell that meets the above conditions during the cell selection process. Then, according to the protocol standard, a conditional handover is performed, allowing the terminal to switch to the target cell.

[0068] Furthermore, by combining reconstruction with conditional handover, the advantages of conditional handover are leveraged, reducing the probability of terminal reconstruction and preventing adverse effects such as excessive signaling interactions, high latency, low link recovery efficiency, and poor user experience caused by reconstruction.

[0069] To illustrate the specific implementation process of this embodiment, the following specific application examples are given, but are not limited thereto:

[0070] In the 5G New Radio (NR) network architecture, when the network device has configured conditional handover for the terminal and the conditional handover is configured to attempt conditional reconfiguration protocol, the terminal needs to initiate a reconstruction process due to reasons such as radio link failure or the maximum number of retransmissions.

[0071] The terminal is camped in cell 1 and in connected state. It receives an RRC reconfiguration message from the network, which includes a conditionalReconfiguration message. The attemptCondReconfig-r16 parameter in this conditionalReconfiguration message is set to TRUE. This conditionalReconfiguration message contains a conditional handover add / modify table (condReconfigToAddModList). This table can be used to store multiple reconfiguration messages for conditional reconfiguration and their execution conditions, carrying the target cell cell 2 for the conditional handover (but excluding cells 3, 4, and 5).

[0072] Multiple neighboring cells, cell2, cell3, cell4, and cell5, are configured. The signal strengths of cells3, 4, and 5 are all higher than that of cell2, and none of them are target cells for conditional handover. Cell2's signal strength meets the cell dwell conditions of a cell whose reference RSRP is greater than a first preset threshold and / or whose RSRQ is greater than a second preset threshold.

[0073] When a terminal experiences a wireless link connection failure on cell 1, a reconstruction procedure is triggered. During the reconstruction procedure, the cell selection process chooses cell 2, which has a weaker signal, and triggers a conditional handover procedure, without reconstruction occurring on cell 3, cell 4, or cell 5.

[0074] Compared with existing technologies, this embodiment can configure a reconfiguration message containing conditional handover to the terminal via network devices. During the connection reconstruction process, the reconstruction and conditional handover are combined according to protocol requirements to select the target cell for terminal connection reconstruction. This increases the probability of selecting the target cell for conditional handover during cell selection, thereby increasing the probability of transforming the reconstruction process into a conditional handover process. The connection reconstruction process involves less signaling interaction and lower latency, thus improving the efficiency of link recovery and enhancing the user experience.

[0075] Furthermore, as Figure 1 and Figure 2 To illustrate the specific implementation of the method shown, this embodiment provides a communication device, such as... Figure 3 As shown, the device includes: a receiving module 31, a storage module 32, and a determining module 33.

[0076] The receiving module 31 is configured to receive an RRC reconfiguration message sent by a network device, wherein the RRC reconfiguration message includes a conditional reconfiguration message;

[0077] The storage module 32 is configured to store the target cell for conditional handover in the conditional reconfiguration message;

[0078] The determination module 33 is configured to determine the target cell for terminal connection reconstruction during the cell selection process of the connection reconstruction procedure, based on the target cell switched according to the saved conditions.

[0079] In some examples of this embodiment, the determining module 33 is further configured to select, from the saved target cells of the condition switching, a cell whose cell measurement results meet the preset camping conditions as the target cell for the terminal connection reconstruction.

[0080] In some examples of this embodiment, the determining module 33 is further configured to select, from the saved target cells of the conditional handover, a cell whose RSRP is greater than a first preset threshold and / or whose RSRQ is greater than a second preset threshold, as the target cell for the terminal connection reconstruction.

[0081] In some examples of this embodiment, the determining module 33 is also configured to trigger the terminal to perform a conditional handover process, causing the terminal to switch to the target cell.

[0082] In some examples of this embodiment, the saving module 32 is further configured to save the configuration of the target cell for conditional handover in the conditional reconfiguration message to the conditional reconfiguration variable; correspondingly, the determining module 33 is further configured to determine the target cell for terminal connection reconstruction based on the target cell for conditional handover saved in the conditional reconfiguration variable.

[0083] In some examples of this embodiment, the receiving module 31 is also configured to enable the attempt conditional reconfiguration in the conditional reconfiguration message.

[0084] It should be noted that other corresponding descriptions of the functional units involved in the communication device provided in this embodiment can be found in [reference needed]. Figure 1 and Figure 2 The corresponding descriptions in [the document] will not be repeated here.

[0085] Figure 4 This is a schematic diagram of the structure of a communication device 1800 provided in this embodiment. The communication device 1800 can be a network device, a user device, a chip, chip system, or processor that supports the implementation of the above methods in a network device, or a chip, chip system, or processor that supports the implementation of the above methods in a user device. This device can be used to implement the methods described in the above method embodiments; for details, please refer to the descriptions in the above method embodiments.

[0086] The communication device 1800 may include one or more processors 1801. The processor 1801 may be a general-purpose processor or a dedicated processor, such as a baseband processor or a central processing unit (CPU). The baseband processor can be used to process communication protocols and communication data, while the CPU can be used to control the communication device (e.g., base station, baseband chip, terminal device, terminal device chip, DU or CU, etc.), execute computer programs, and process data from the computer programs.

[0087] Optionally, the communication device 1800 may further include one or more memories 1802, on which a computer program 1804 may be stored. The processor 1801 executes the computer program 1804 to cause the communication device 1800 to perform the methods described in the above method embodiments. Optionally, the memory 1802 may also store data. The communication device 1800 and the memory 1802 may be provided separately or integrated together.

[0088] Optionally, the communication device 1800 may also include a transceiver 1805 and an antenna 1806. The transceiver 1805 may be referred to as a transceiver unit, transceiver, or transceiver circuit, etc., and is used to implement the transmission and reception functions. The transceiver 1805 may include a receiver and a transmitter. The receiver may be referred to as a receiver or receiving circuit, etc., and is used to implement the receiving function; the transmitter may be referred to as a transmitter or transmitting circuit, etc., and is used to implement the transmitting function.

[0089] Optionally, the communication device 1800 may further include one or more interface circuits 1807. The interface circuits 1807 are used to receive code instructions and transmit them to the processor 1801. The processor 1801 executes the code instructions to cause the communication device 1800 to perform the methods described in the above method embodiments.

[0090] In one implementation, the processor 1801 may include a transceiver for implementing receive and transmit functions. For example, the transceiver may be a transceiver circuit, an interface, or an interface circuit. The transceiver circuit, interface, or interface circuit for implementing receive and transmit functions may be separate or integrated. The aforementioned transceiver circuit, interface, or interface circuit can be used for reading and writing code / data, or it can be used for transmitting or relaying signals.

[0091] In one implementation, processor 1801 may store computer program 1803, which runs on processor 1801 and causes communication device 1800 to perform the methods described in the above method embodiments. Computer program 1803 may be embedded in processor 1801; in this case, processor 1801 may be implemented in hardware.

[0092] In one implementation, the communication device 1800 may include circuitry capable of performing the transmitting, receiving, or communication functions described in the foregoing method embodiments. The processor and transceiver described in this disclosure can be implemented on integrated circuits (ICs), analog ICs, radio frequency integrated circuits (RFICs), mixed-signal ICs, application-specific integrated circuits (ASICs), printed circuit boards (PCBs), electronic devices, etc. The processor and transceiver can also be manufactured using various IC process technologies, such as complementary metal oxide semiconductors (CMOS), n-metal-oxide-semiconductor (NMOS), positive-channel metal oxide semiconductors (PMOS), bipolar junction transistors (BJTs), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

[0093] The communication device described in the above embodiments may be a network device or a user equipment, but the scope of the communication device described in this disclosure is not limited to this, and the structure of the communication device may vary. Figure 4 The communication device can be a standalone device or part of a larger device. For example, the communication device could be:

[0094] (1) Independent integrated circuit IC, or chip, or chip system or subsystem;

[0095] (2) A collection of one or more ICs, optionally including storage components for storing data and computer programs;

[0096] (3) ASIC, such as modem;

[0097] (4) Modules that can be embedded in other devices;

[0098] (5) Receivers, terminal equipment, smart terminal equipment, cellular phones, wireless equipment, handheld devices, mobile units, vehicle-mounted equipment, network equipment, cloud equipment, artificial intelligence equipment, etc.

[0099] (6) Others, etc.

[0100] Based on the above embodiments, this embodiment also provides a chip, including one or more interfaces and one or more processors; the interface is used to receive signals from the memory of a communication device and send the signals to the processor, the signals including computer instructions stored in the memory; when the processor executes the computer instructions, it causes the communication device to perform the above-described... Figure 1 and Figure 2 The method shown.

[0101] Figure 5 This is a schematic diagram of the structure of a chip 1000 used to implement the above-described communication method, provided in this embodiment. (Refer to...) Figure 5 The chip 1000 includes at least one communication interface 1001 and a processor 1002. The communication interface 1001 is used to receive signals input to the chip 1000 or signals output from the chip 1000. The processor 1002 communicates with the communication interface 1001 and implements the communication method described in the above embodiments of this disclosure through logic circuits or execution code instructions.

[0102] Those skilled in the art will also understand that the various illustrative logical blocks and steps listed in the embodiments of this disclosure can be implemented by electronic hardware, computer software, or a combination of both. Whether such functionality is implemented in hardware or software depends on the specific application and the overall system design requirements. Those skilled in the art can implement the described functionality using various methods for each specific application, but such implementation should not be construed as exceeding the scope of protection of the embodiments of this disclosure.

[0103] This disclosure also provides a computer-readable storage medium having instructions stored thereon that, when executed by a computer, implement the functions of any of the above method embodiments.

[0104] This disclosure also provides a computer program product that, when executed by a computer, implements the functions of any of the above method embodiments.

[0105] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, as a computer program product. A computer program product includes one or more computer programs. When a computer program is loaded and executed on a computer, it generates, in whole or in part, the flow or function according to the embodiments of this disclosure. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program can be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another. For example, a computer program can be transferred from one website, computer, server, or data center to another via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable 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 integrates one or more available media. The available media can be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., high-density digital video discs (DVDs)), or semiconductor media (e.g., solid-state disks (SSDs)).

[0106] Those skilled in the art will understand that the various numerical designations such as "first," "second," etc., used in this disclosure are merely for the convenience of description and are not intended to limit the scope of the embodiments of this disclosure, nor do they indicate the order of events.

[0107] At least one of the features described in this disclosure can also be described as one or more, and multiple features can be two, three, four or more, and this disclosure does not impose any limitations. In the embodiments of this disclosure, for a technical feature, the technical features in that technical feature are distinguished by "first", "second", "third", "A", "B", "C" and "D", etc., and there is no sequential order or size order among the technical features described by "first", "second", "third", "A", "B", "C" and "D".

[0108] As used herein, the terms "machine-readable medium" and "computer-readable medium" refer to any computer program product, device, and / or apparatus (e.g., disk, optical disk, memory, programmable logic device (PLD)) used to provide machine instructions and / or data to a programmable processor, including machine-readable media that receive machine instructions as machine-readable signals. The term "machine-readable signal" refers to any signal used to provide machine instructions and / or data to a programmable processor.

[0109] The systems and technologies described herein can be implemented in computing systems that include backend components (e.g., as a data server), or computing systems that include middleware components (e.g., an application server), or computing systems that include frontend components (e.g., a user computer with a graphical user interface or web browser through which a user can interact with embodiments of the systems and technologies described herein), or any combination of such backend, middleware, or frontend components. The components of the system can be interconnected via digital data communication of any form or medium (e.g., a communication network). Examples of communication networks include local area networks (LANs), wide area networks (WANs), and the Internet.

[0110] Computer systems can include clients and servers. Clients and servers are generally located far apart and typically interact through communication networks. Client-server relationships are created by computer programs running on the respective computers and having a client-server relationship with each other.

[0111] It should be understood that the various forms of processes shown above can be used to rearrange, add, or delete steps. For example, the steps described in this disclosure can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this disclosure can be achieved, and this is not limited herein.

[0112] Furthermore, it should be understood that the various embodiments described in this disclosure can be implemented individually or in combination with other embodiments, where the scheme allows.

[0113] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments claimed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software 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 this disclosure.

[0114] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0115] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A communication method, characterized in that, include: Receive a Radio Resource Control (RRC) reconfiguration message sent by a network device, wherein the RRC reconfiguration message includes a conditional reconfiguration message; If the conditional reconfiguration attempt is enabled in the conditional reconfiguration message, the target cell for conditional handover in the conditional reconfiguration message is saved. If a connection failure occurs while the terminal is in a connected state, a reconstruction process is initiated. During the cell selection process of the connection reconstruction procedure, the target cell for the terminal connection reconstruction is determined according to the saved target cell for switching under the conditions. If the target cell for the reconnection of the terminal is the target cell for the conditional handover, the conditional handover process is triggered. The step of determining the target cell for terminal connection reconstruction based on the saved target cell for conditional handover includes: From the saved target cells for the condition switching, select the cell whose cell measurement results meet the preset camping conditions as the target cell for the terminal connection reconstruction.

2. The method according to claim 1, characterized in that, Selecting a cell from the saved target cells for conditional handover that meets preset camping conditions as the target cell for terminal connection reconstruction includes: From the saved target cells for the conditional handover, select cells whose Reference Signal Received Power (RSRP) is greater than a first preset threshold and / or whose Reference Signal Received Quality (RSRQ) is greater than a second preset threshold, and use these cells as the target cells for the terminal connection reconstruction.

3. The method according to claim 1, characterized in that, The trigger condition switching process includes: The terminal is triggered to execute the conditional handover procedure, causing the terminal to switch to the target cell.

4. The method according to claim 1, characterized in that, Saving the target cell for conditional handover in the conditional reconfiguration message includes: Save the configuration of the target cell for conditional handover in the conditional reconfiguration message to the conditional reconfiguration variable; The step of determining the target cell for terminal connection reconstruction based on the saved target cell for switching according to the conditions includes: The target cell for terminal connection reconstruction is determined based on the target cell for conditional handover stored in the conditional reconfiguration variables.

5. A communication device, characterized in that, include: The receiving module is configured to receive a Radio Resource Control (RRC) reconfiguration message sent by a network device, wherein the RRC reconfiguration message includes a conditional reconfiguration message. The save module is configured to save the target cell for conditional handover in the conditional reconfiguration message when the attempt to reconfigure the condition is enabled in the conditional reconfiguration message. The communication device is also configured to initiate a reconstruction process when a connection failure occurs while the terminal is in a connected state. The determination module is configured to determine the target cell for the terminal connection and reconstruction during the cell selection process of the connection reconstruction procedure, based on the saved target cell for switching under the conditions. The communication device is also configured to trigger a conditional handover process when the target cell for the terminal connection reconstruction is the target cell for the conditional handover. The determining module is configured as follows: From the saved target cells for the condition switching, select the cell whose cell measurement results meet the preset camping conditions as the target cell for the terminal connection reconstruction.

6. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the method of any one of claims 1 to 4.

7. A communication device, wherein, include: transceiver; Memory; The processor is connected to the transceiver and the memory respectively, and is configured to control the wireless signal transmission and reception of the transceiver by executing computer-executable instructions on the memory, and is capable of implementing the method of any one of claims 1 to 4.

8. A chip, characterized in that, It includes at least one processor and a communication interface; the communication interface is used to receive signals input to the chip or signals output from the chip, and the processor communicates with the communication interface and implements the method as described in any one of claims 1 to 4 through logic circuits or executing code instructions.

Images