A cell switching method, cell switching device, terminal equipment and storage medium

Abstract

The present application discloses a cell switching method, which is applied to a terminal device, and the terminal device resides in a serving cell. The cell switching method includes: receiving a measurement control message of an event sent by a network device, wherein the measurement control message includes at least one measurement object; measuring each measurement object to obtain a measurement value of the measurement object, wherein the measurement value includes a reference signal received power and a signal to interference plus noise ratio of the reference signal; if the reference signal received power and the signal to interference plus noise ratio meet a prohibition reporting condition, prohibiting or delaying sending a measurement report of the event to the network device, and the measurement report is used to trigger switching to a neighboring cell. The present application also discloses a cell switching device, a terminal device, and a storage medium.

Description

Technical Field

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

[0002] There are usually three stages when a terminal device switches from a New Radio (NR) cell to a neighboring cell such as a Long Term Evolution (LTE) cell: The first stage is the measurement stage: the NR cell needs to configure an LTE neighboring cell, the terminal device establishes a connection in the NR cell, and the network device such as a 5G base station (5G nodeB, gNB) configures an A2 measurement event to the terminal device. After the terminal device measures and satisfies the A2 event, the gNB configures the B1 / B2 event based on the radio access technology (RAT) to the terminal device. After the terminal device determines that the B1 / B2 event is satisfied, it reports the measurement report of the B1 / B2 event. The second stage is the decision stage: the gNB filters the neighboring cell information in the measurement report, forms a target handover list based on the signal strength, and selects a cell from the target handover list as the target cell to initiate a handover request. The third stage is the execution stage: the terminal device executes the handover and resides on the 4G base station (evolved nodeB, eNB) to establish a bearer, the eNB deletes the terminal device context, and the handover is completed.

[0003] However, when the signal of the neighboring cell of the NR cell is relatively weak, the terminal device will report the measurement results of the abnormal or weak signal neighboring cell events, such as the measurement results of B1 / B2, to the base station. The base station initiates cell switching to this abnormal and unavailable neighboring cell, which will cause communication failure of the communication service. Summary of the invention

[0004] The embodiments of the present application hope to provide a cell switching method, a cell switching device, a terminal device and a storage medium to solve the problem in the related art that the terminal device reports the measurement results of events in abnormal or weak signal neighboring cells to the base station, and the base station initiates cell switching to this abnormal and unavailable neighboring cell, which will cause communication failure of the communication service.

[0005] The technical solution of this application is implemented as follows:

[0006] A cell switching method is applied to a terminal device, wherein the terminal device resides in a serving cell, and the method comprises:

[0007] Receiving a measurement control message of an event sent by a network device, wherein the measurement control message includes at least one measurement object;

[0008] Measuring each measurement object to obtain a measurement value of the measurement object, wherein the measurement value includes a reference signal received power and a signal to interference plus noise ratio of the reference signal;

[0009] If the reference signal received power and the signal to interference plus noise ratio meet the reporting prohibition condition, sending a measurement report of the event to the network device is prohibited or delayed, and the measurement report is used to trigger switching to a neighboring cell.

[0010] A cell switching device, the cell switching device comprising:

[0011] A receiving unit, configured to receive a measurement control message of an event sent by a network device, wherein the measurement control message includes at least one measurement object;

[0012] A measuring unit, configured to measure each measurement object to obtain a measurement value of the measurement object, wherein the measurement value includes a reference signal received power and a signal to interference plus noise ratio of the reference signal;

[0013] A processing unit is used to prohibit or delay sending a measurement report of the event to the network device if the reference signal received power and the signal to interference plus noise ratio meet a prohibition reporting condition, wherein the measurement report is used to trigger switching to a neighboring cell.

[0014] A terminal device, comprising: a processor, a memory and a communication bus;

[0015] The communication bus is used to realize the communication connection between the processor and the memory;

[0016] The processor is used to execute the cell switching program stored in the memory to implement the steps of the cell switching method as described above.

[0017] A storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to implement the steps of the cell switching method as described above.

[0018] The present application provides a cell switching method, a cell switching device, a terminal device and a storage medium, wherein the terminal device resides in a service cell, and the cell switching method comprises: receiving a measurement control message of an event sent by a network device, wherein the measurement control message comprises at least one measurement object; measuring each measurement object to obtain a measurement value of the measurement object, wherein the measurement value comprises a reference signal received power and a signal to interference plus noise ratio of the reference signal; if the reference signal received power and the signal to interference plus noise ratio meet a prohibition reporting condition, prohibiting or delaying sending a measurement report of the event to the network device, and the measurement report is used to trigger switching to a neighboring cell; in this way, it is avoided that the terminal device reports the measurement result of an event of an abnormal or weak signal neighboring area to the network device, so that the network device initiates a cell switch to this abnormal, unavailable neighboring area, thereby causing the communication service to fail, thereby improving the stability of the communication service and ensuring that the network switch complies with the network status. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of a network architecture provided for an embodiment of the present application;

[0020] Figure 2 A schematic diagram of a cell switching method provided in an embodiment of the present application Figure 1 ;

[0021] Figure 3 A schematic diagram of a cell switching method provided in an embodiment of the present application Figure 2 ;

[0022] Figure 4 A schematic diagram of a cell switching method provided in an embodiment of the present application Figure 3 ;

[0023] Figure 5 A schematic diagram of a cell switching method provided in an embodiment of the present application Figure 4 ;

[0024] Figure 6 A schematic diagram of the structure of a cell switching device provided in an embodiment of the present application;

[0025] Figure 7 A schematic diagram of the structure of a terminal device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0026] The following will describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0027] Figure 1 It is a schematic diagram of a network architecture of an embodiment of the present application.

[0028] like Figure 1 As shown, the communication system 100 may include a core network device 101, a serving cell terminal device 102, a neighboring cell terminal device 103, and a network device (the network device includes a serving cell base station 104 and a neighboring cell base station 105). The serving cell base station 104 may communicate with the serving cell terminal device 102 via an air interface. The neighboring cell base station 105 may communicate with the neighboring cell terminal device 103 via an air interface. In the embodiment of the present application, multi-service transmission is supported between the terminal device and the network device.

[0029] It should be understood that the embodiments of the present application are only exemplified by the communication system 100, but the embodiments of the present application are not limited thereto. That is to say, the technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Long Term Evolution (LTE) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Internet of Things (IoT) system, Narrow Band Internet of Things (NB-IoT) system, enhanced Machine-Type Communications (eMTC) system, 5G communication system also known as NR communication system, or future communication system, etc.

[0030] exist Figure 1 In the communication system 100 shown, the serving cell base station 104 may be an access network device that communicates with the serving cell terminal device 102, and the neighboring cell base station 105 may be an access network device that communicates with the neighboring cell terminal device 103. The access network device may provide communication coverage for a specific geographical area, and may communicate with a terminal device (e.g., UE) located in the coverage area.

[0031] The serving cell base station 104 may be a base station (gNB) in an NR system, or a wireless controller in a cloud radio access network (CRAN), or the serving cell base station 104 may be a relay station, an access point, a vehicle-mounted device, a wearable device, a hub, a switch, a bridge, a router, or a network device in a future evolved public land mobile network (PLMN).

[0032] The neighboring cell base station 105 may be an evolved Node B (eNB or eNodeB) in a Long Term Evolution (LTE) system, or a Next Generation Radio Access Network (NG RAN) device, or a gNB in ​​an NR system, or a wireless controller in a CRAN, or the neighboring cell base station 105 may be a relay station, an access point, a vehicle-mounted device, a wearable device, a hub, a switch, a bridge, a router, or a network device in a future evolved PLMN, etc.

[0033] Terminal devices include, but are not limited to, any terminal devices that are connected to network devices or other terminal devices by wire or wireless. For example, terminal devices may refer to access terminals, user equipment (UE), user units, user stations, mobile stations, mobile stations, remote stations, remote terminals, mobile devices, user terminals, terminals, wireless communication devices, user agents, or user devices. Access terminals may be cellular phones, cordless phones, Session Initiation Protocol (SIP) phones, IoT devices, satellite handheld terminals, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, terminal devices in 5G networks, or terminal devices in future evolution networks, etc.

[0034] The terminal device can be used for device to device (D2D) communication.

[0035] The above-mentioned core network device 101 can be a 5G core network (5G Core, 5GC) device, for example, an access and mobility management function (Access and Mobility Management Function, AMF) device, for example, an authentication server function (Authentication Server Function, AUSF) device, for example, a user plane function (User Plane Function, UPF) device, for example, a session management function (Session Management Function, SMF) device. Optionally, the core network device 101 can also be an evolved packet core (Evolved Packet Core, EPC) device of the LTE network, for example, a session management function + core network data gateway (Session Management Function+Core PacketGateway, SMF+PGW-C) device. It should be understood that SMF+PGW-C can simultaneously implement the functions that SMF and PGW-C can implement. During the network evolution process, the name of the above-mentioned core network device may change, or a new network entity may be formed by dividing the functions of the core network, which is not limited to the embodiments of the present application.

[0036] The functional units in the communication system 100 may also establish connections through next generation (NG) network interfaces to achieve communication.

[0037] For example, the terminal device establishes an air interface connection with the access network device through the NR interface for transmitting user plane data and control plane signaling; the terminal device can establish a control plane signaling connection with the AMF through the NG interface 1 (N1 for short); the access network device, such as the next generation wireless access base station (gNB), can establish a user plane data connection with the UPF through the NG interface 3 (N3 for short); the access network device can establish a control plane signaling connection with the AMF through the NG interface 2 (N2 for short); the UPF can establish a control plane signaling connection with the SMF through the NG interface 4 (N4 for short); the UPF can exchange user plane data with the data network through the NG interface 6 (N6 for short); the AMF can establish a control plane signaling connection with the SMF through the NG interface 11 (N11 for short); the SMF can establish a control plane signaling connection with the PCF through the NG interface 7 (N7 for short).

[0038] In the embodiment of the present application, the serving cell base station 104 and the neighboring cell base station 105 may be managed by the same core network device 101 or by different network management servers, which is not specifically limited in the present application.

[0039] The serving cell base station 104 manages the serving cell, and the neighboring cell base station 105 manages the neighboring cell. The serving cell and the neighboring cell may be co-frequency cells or hetero-frequency cells, which is not specifically limited in the present application.

[0040] The serving cell terminal device 102 may be switched from the serving cell to the neighboring cell under the control of the serving cell base station 104 .

[0041] Figure 1 Two base stations, a core network device and multiple terminal devices are shown exemplarily. Optionally, the wireless communication system 100 may include more than two base station devices and each base station may include another number of terminal devices within its coverage area, which is not limited in the embodiments of the present application.

[0042] It should be noted that Figure 1 It is only to illustrate the system to which the present application is applicable in the form of an example. Of course, the method shown in the embodiment of the present application can also be applied to other systems. In addition, the terms "system" and "network" are often used interchangeably in this article. The term "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship. It should also be understood that the "indication" mentioned in the embodiment of the present application can be a direct indication, an indirect indication, or an indication of an association relationship. For example, A indicates B, which can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, B can be obtained through C; it can also mean that there is an association relationship between A and B. It should also be understood that the "correspondence" mentioned in the embodiment of the present application can mean that there is a direct or indirect correspondence relationship between the two, or it can mean that there is an association relationship between the two, or it can mean that there is an indication and being indicated, configuration and being configured, etc. It should also be understood that the "predefined" or "predefined rules" mentioned in the embodiments of the present application can be implemented by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in devices (for example, including terminal devices and network devices), and the present application does not limit its specific implementation method. For example, predefined may refer to the definition in the protocol. It should also be understood that in the embodiments of the present application, "protocol" may refer to a standard protocol in the field of communications, such as LTE protocols, NR protocols, and related protocols used in future communication systems, and the present application does not limit this.

[0043] To facilitate understanding of the technical solutions of the embodiments of the present application, the relevant technologies of the embodiments of the present application are described below. The following related technologies can be arbitrarily combined with the technical solutions of the embodiments of the present application as optional solutions, and they all belong to the protection scope of the embodiments of the present application.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein are only for the purpose of describing the embodiments of this application and are not intended to limit this application.

[0045] The present application embodiment provides a cell switching method applied to a terminal device, wherein the terminal device resides in a serving cell, and refers to Figure 2 As shown, the method comprises the following steps:

[0046] Step 201: Receive a measurement control message of an event sent by a network device.

[0047] The measurement control message includes at least one measurement object, and the measurement object includes a serving cell and at least one neighboring cell.

[0048] In the embodiment of the present application, the measurement control message of the event sent by the network device is used to determine whether to perform cell switching. The above events include but are not limited to B1 event (Event B1) or B2 event (Event B2). Among them, the measurement control message of Event B1 or Event B2 refers to the measurement control message that the quality of the neighboring cell is better than the threshold.

[0049] Here, the measurement control message includes but is not limited to a Radio Resource Control (RRC) connection reconfiguration (RRC Connection Reconfiguration) message.

[0050] In some embodiments, after the terminal device enters a connected state, the network device sends a measurement control message of an A2 event (Event A2) to the terminal device. The measurement control message of Event A2 refers to a measurement control message indicating that the quality of the serving cell is lower than a threshold value. The terminal device performs measurements and judgments based on the measurement control message of Event A2, and when the measurement value meets the reporting configuration requirements in the measurement control message of Event A2, it sends a measurement report of the A2 event to the network device. When the network device receives the measurement report of the A2 event, it sends a measurement control message of Event B1 or Event B2 to the terminal device, and initiates measurements for determining whether to perform cell switching. When the terminal device receives the measurement control message of Event B1 or Event B2, the terminal device performs measurements and judgments based on the measurement control message of Event B1 or Event B2.

[0051] In other embodiments of the present application, the serving cell is a NR cell, and the neighboring cell is an LTE cell; or, both the serving cell and the neighboring cell are NR cells.

[0052] Step 202: Measure each measurement object to obtain a measurement value of the measurement object.

[0053] The measured values ​​include the reference signal received power and the signal to interference plus noise ratio of the reference signal.

[0054] In an embodiment of the present application, when the terminal device receives the measurement control message of Event B1 or Event B2, the terminal device performs measurement according to the measurement control message of Event B1 or Event B2, including measuring the reference signal received power of the serving cell and at least one neighboring cell, and the signal to interference plus noise ratio of the reference signal. Here, the reference signal received power of the serving cell is recorded as srv_rsrp, and the signal to interference plus noise ratio of the reference signal of the serving cell is recorded as srv_sinr. The reference signal received power of the neighboring cell is recorded as nbr_rsrp, and the signal to interference plus noise ratio of the reference signal of the neighboring cell is recorded as nbr_sinr.

[0055] Step 203: If the reference signal received power and the signal to interference plus noise ratio meet the reporting prohibition condition, prohibit or delay sending the event measurement report to the network device, and the measurement report is used to trigger switching to the neighboring cell.

[0056] In an embodiment of the present application, the terminal device determines whether the prohibition reporting condition is met based on the measured reference signal received power, and the signal to interference plus noise ratio, i.e., srv_rsrp, srv_sinr, nbr_rsrp and nbr_sinr. Once the prohibition reporting condition is met, the measurement report of the event is prohibited or delayed from being sent to the network device, thereby avoiding the network device switching to an abnormal neighboring cell when the neighboring cell is currently in an abnormal or weak signal state.

[0057] The cell switching method provided in this application can be applied to the following scenarios: a 5G ultra-high-definition video call scenario (Voice over New Radio, VoNR) of a terminal device on 5G, and a scenario in which a terminal device receives an incoming call on 5G. This application does not make specific limitations.

[0058] A cell switching method provided in an embodiment of the present application is applied to a terminal device, which resides in a service cell. The cell switching method includes: receiving a measurement control message of an event sent by a network device, wherein the measurement control message includes at least one measurement object; measuring each measurement object to obtain a measurement value of the measurement object, wherein the measurement value includes a reference signal received power and a signal to interference plus noise ratio of the reference signal; if the reference signal received power and the signal to interference plus noise ratio meet a prohibition reporting condition, prohibiting or delaying sending a measurement report of the event to the network device, and the measurement report is used to trigger switching to a neighboring cell; in this way, it is avoided that the terminal device reports the measurement result of an event in an abnormal or weak signal neighboring area to the network device, causing the network device to initiate a cell switch to this abnormal, unavailable neighboring area, thereby causing the communication service to fail, thereby improving the stability of the communication service and ensuring that the network switch is in compliance with the network status.

[0059] In other embodiments of the present application, each measurement object is represented by a cell identifier or a frequency point in the cell.

[0060] Here, when the measurement object is represented as a cell identifier, the terminal device is instructed to measure the signal quality of the cell indicated by the cell identifier. Therefore, the terminal device needs to measure the parameter value of the cell signal quality and use it as the measurement value of the measurement object for subsequent determination of whether to report the measurement report of the event. When the measurement object is a frequency point identifier, the terminal device is instructed to measure the signal quality of the frequency point indicated by the frequency point identifier. Therefore, the terminal device needs to measure the parameter value of the signal quality of the frequency point and use it as the measurement value of the measurement object for subsequent determination of whether to report the measurement report of the event.

[0061] In some embodiments of the present application, the measurement objects include a serving cell and at least one neighboring cell. In step 203, the reference signal received power and the signal to interference plus noise ratio meet the reporting prohibition conditions, including: the reference signal received power of the serving cell is greater than a first threshold value of the serving cell, and the signal to interference plus noise ratio of the serving cell is greater than a second threshold value of the serving cell, and the reference signal received power of the neighboring cell is less than a third threshold value of the neighboring cell, or the signal to interference plus noise of the neighboring cell is less than a fourth threshold value of the neighboring cell.

[0062] Here, the first threshold is recorded as srv_rsrp_th, the second threshold is recorded as srv_sinr_th, the third threshold is recorded as nbr_rsrp_th, and the fourth threshold is recorded as nbr_sinr_th. The thresholds in this application can be pre-configured in the terminal device according to actual communication requirements, or dynamically configured according to dynamic configuration requirements sent by the network device, so that the thresholds can be flexibly configured.

[0063] In an embodiment of the present application, the terminal device makes a determination based on the measurement control message of Event B1 or Event B2, including comparing srv_rsrp with srv_rsrp_th, comparing srv_sinr with srv_sinr_th, comparing nbr_rsrp with nbr_rsrp_th, and comparing nbr_sinr with nbr_sinr_th; or the terminal device makes a determination based on the measurement control message of Event B1 or Event B2, including: determining the result obtained by substituting srv_rsrp and srv_rsrp_th into a logical expression, determining the result obtained by substituting srv_sinr and srv_sinr_th into a logical expression, determining the result obtained by substituting nbr_rsrp and nbr_rsrp_th into a logical expression, and determining the result obtained by substituting nbr_sinr and nbr_sinr_th into a logical expression.

[0064] In a feasible scenario, take the serving cell as an NR cell and the neighboring cell as an LTE cell as an example; see Figure 3 As shown, the terminal device performs measurement and determination according to the measurement control message of Event B1 or Event B2, which can be achieved through the following steps:

[0065] Step 301: The terminal device measures the NR cell and the LTE neighboring cell to obtain the srv_rsrp and srv_sinr of the NR cell, and the nbr_rsrp and nbr_sinr of the LTE neighboring cell.

[0066] Step 302: The terminal device obtains the threshold values of the NR cell and the LTE neighboring cell, and obtains srv_rsrp_th, srv_sinr_th, nbr_rsrp_th, and nbr_sinr_th.

[0067] Step 303: The terminal device compares srv_rsrp with srv_rsrp_th, compares srv_sinr with srv_sinr_th, compares nbr_rsrp with nbr_rsrp_th, and compares nbr_sinr with nbr_sinr_th. If srv_rsrp > srv_rsrp_th and srv_sinr > srv_sinr_th, and nbr_rsrp < nbr_rsrp_th or nbr_sinr < nbr_sinr_th, it is determined that the condition for prohibiting reporting is met; otherwise, it is determined that the reporting condition is met, and a measurement report of the event is reported to the network device.

[0068] As can be seen from the above, if the signal of the NR serving cell is good and the signal quality of the LTE neighboring cell is poor (that is, the nbr_rsrp or nbr_sinr of the neighboring cell is less than the threshold value), the terminal device does not report or delays reporting Event B1 / B2; otherwise, it normally reports Event B1 / B2.

[0069] In some embodiments of the present application, the measurement objects include the serving cell and at least one neighboring cell, the measurement values include the reference signal received power, the signal-to-interference-plus-noise ratio of the reference signal, and the reference signal received quality. The reference signal received power and the signal-to-interference-plus-noise ratio in step 203 satisfy the condition for prohibiting reporting, including: the reference signal received power of the serving cell is greater than the first threshold value of the serving cell, and the signal-to-interference-plus-noise ratio of the serving cell is greater than the second threshold value of the serving cell, and the reference signal received quality of the serving cell is greater than the fifth threshold value of the serving cell, and the reference signal received power of the neighboring cell is less than the third threshold value of the neighboring cell, or the signal-to-interference-plus-noise of the neighboring cell is less than the fourth threshold value of the neighboring cell, or the reference signal received quality of the neighboring cell is less than the sixth threshold value of the neighboring cell.

[0070] Here, the reference signal received quality of the serving cell is denoted as srv_rsrq, the fifth threshold value is denoted as srv_rsrq_th, the reference signal received quality of the neighboring cell is denoted as nbr_rsrq, and the sixth threshold value is denoted as nbr_rsrq_th.

[0071] In the embodiment of the present application, the terminal device makes a determination according to the measurement control message of Event B1 or Event B2, including comparing srv_rsrp with srv_rsrp_th, comparing srv_sinr with srv_sinr_th, comparing srv_rsrq with srv_rsrq_th, comparing nbr_rsrp with nbr_rsrp_th, comparing nbr_sinr with nbr_sinr_th, and comparing nbr_rsrq with nbr_rsrq_th; or the terminal device makes a determination according to Event B1 or Event B2. The measurement control message of B2 is determined, including: determining the result obtained by substituting srv_rsrp and srv_rsrp_th into the logical expression, determining the result obtained by substituting srv_sinr and srv_sinr_th into the logical expression, determining the result obtained by substituting srv_rsrq and srv_rsrq_th into the logical expression, determining the result obtained by substituting nbr_rsrp and nbr_rsrp_th into the logical expression, determining the result obtained by substituting nbr_sinr and nbr_sinr_th into the logical expression, and determining the result obtained by substituting nbr_rsrq and nbr_rsrq_th into the logical expression.

[0072] In a feasible scenario, take the serving cell as an NR cell and the neighboring cell as an LTE cell as an example; see Figure 4 As shown, the terminal device performs measurement and determination according to the measurement control message of Event B1 or Event B2, which can be achieved through the following steps:

[0073] Step 401: The terminal device measures the NR cell and the LTE neighboring cell to obtain the srv_rsrp, srv_sinr, srv_rsrq of the NR cell, and the nbr_rsrp, nbr_sinr, nbr_rsrq of the LTE neighboring cell.

[0074] Step 402: The terminal device obtains the threshold values ​​of the NR cell and the LTE neighboring cell, and obtains srv_rsrp_th, srv_sinr_th, srv_rsrq_th, nbr_rsrp_th, nbr_sinr_th and nbr_rsrq_th.

[0075] Step 403: The terminal device compares srv_rsrp with srv_rsrp_th, srv_sinr with srv_sinr_th, srv_rsrq with srv_rsrq_th, nbr_rsrp with nbr_rsrp_th, nbr_sinr with nbr_sinr_th, and nbr_rsrq with nbr_rsrq_th. If srv_rsrp > srv_rsrp_th and srv_sinr > srv_sinr_th and srv_rsrq > srv_rsrq_th, and nbr_rsrp < nbr_rsrp_th or nbr_sinr < nbr_sinr_th or nbr_rsrq < nbr_rsrp_th, it is determined that the condition for prohibiting reporting is met; otherwise, it is determined that the reporting condition is met, and a measurement report of the event is reported to the network device.

[0076] As can be seen from the above, if the signal of the NR serving cell is good and the signal quality of the LTE neighboring cell is poor (i.e., nbr_rsrp or nbr_sinr or nbr_rsrq of the neighboring cell is less than the threshold value), the terminal device does not report or delays reporting Event B1 / B2; otherwise, it normally reports Event B1 / B2. Thus, it avoids the 5G handover to a weak-signal and severely interfered abnormal LTE cell, thereby avoiding problems such as RRC connection failure, radio link failure, tracking area update request (TAU) being rejected by the network side, resulting in call drops, blurred mosaics in video calls, incoming call failures, and frequent 4G / 5G redirections, ensuring that the terminal device can work on an LTE cell with signal quality meeting the requirements and improving the communication experience of the user's communication services.

[0077] An embodiment of the present application provides a cell handover method, which is applied to a terminal device. The terminal device camps on a serving cell and, as shown in Figure 5 below, the terminal device can execute Step 501, Step 502, Step 503; or execute Step 501, Step 502, Step 504, Step 505, Step 503 to implement the cell handover method:

[0078] Step 501: Receive a measurement control message of an event sent by the network device.

[0079] Among them, the measurement control message includes at least one measurement object.

[0080] Step 502: Measure each measurement object to obtain the measurement value of the measurement object.

[0081] The measured values ​​include the reference signal received power and the signal to interference plus noise ratio of the reference signal.

[0082] Step 503: If the reference signal received power and the signal to interference plus noise ratio meet the reporting conditions, send a measurement report of the event to the network device, and switch from the serving cell to one of the at least one neighboring cells in the measurement report through the cell switching process.

[0083] In other embodiments of the present application, the measurement value also includes the reference signal reception quality. If the reference signal reception power, signal to interference plus noise ratio and reference signal reception quality meet the reporting conditions, it can also trigger the terminal device to send an event measurement report to the network device.

[0084] In an embodiment of the present application, when the terminal device determines that the reference signal received power and the signal to interference plus noise ratio meet the reporting conditions, the terminal device promptly sends a measurement report of the event to the network device, triggering the network to switch in time, thereby ensuring that the terminal device can switch to a neighboring cell with better signal quality when the signal quality of the NR service cell is poor.

[0085] Step 504: If the reference signal received power and the signal to interference plus noise ratio meet the reporting prohibition condition, prohibit or delay sending the event measurement report to the network device, and the measurement report is used to trigger switching to the neighboring cell.

[0086] Step 505: reset and perform measurement of each measurement object until the obtained measurement value meets the reporting condition, and then perform the steps in step 503. Here, when the terminal device remeasures and determines the measurement object until the obtained measurement value meets the reporting condition, the measurement report of the event is reported to the network device. In this way, the terminal device can report the measurement report of the event to the network device in a timely and accurate manner, so as to ensure that the network device performs cell switching according to the measurement report in a more consistent manner with the actual network quality, thereby improving the network stability of the communication service.

[0087] It should be noted that, for the description of the same steps and the same contents in this embodiment as those in other embodiments, reference can be made to the description in other embodiments and will not be repeated here.

[0088] The embodiment of the present application provides a cell switching device, which can be applied to Figure 2 , Figure 5 In a cell switching method provided in a corresponding embodiment, referring to Figure 6 As shown, the cell switching device 600 includes:

[0089] The receiving unit 601 is configured to receive a measurement control message of an event sent by a network device, wherein the measurement control message includes at least one measurement object;

[0090] The measuring unit 602 is configured to measure each measurement object to obtain a measurement value of the measurement object, wherein the measurement value includes a reference signal received power and a signal to interference plus noise ratio of the reference signal;

[0091] The processing unit 603 is configured to prohibit or delay sending a measurement report of the event to the network device if the reference signal received power and the signal to interference plus noise ratio meet a prohibition reporting condition, wherein the measurement report is used to trigger a handover to a neighboring cell.

[0092] In other embodiments of the present application, the measurement objects include a serving cell and at least one neighboring cell, and the reference signal received power and the signal to interference plus noise ratio meet the prohibition reporting conditions, including: the reference signal received power of the serving cell is greater than a first threshold value of the serving cell, and the signal to interference plus noise ratio of the serving cell is greater than a second threshold value of the serving cell, and the reference signal received power of the neighboring cell is less than a third threshold value of the neighboring cell, or the signal to interference plus noise of the neighboring cell is less than a fourth threshold value of the neighboring cell.

[0093] In other embodiments of the present application, the measurement value also includes the reference signal reception quality; the reference signal reception power, and the signal to interference plus noise ratio meets the prohibition reporting condition, and also includes: the reference signal reception quality of the serving cell is greater than the fifth threshold value of the serving cell, or the reference signal reception quality of the neighboring cell is less than the sixth threshold value of the neighboring cell.

[0094] In other embodiments of the present application, the processing unit 603 is used to reset the measurement of each measurement object if the reference signal received power and the signal to interference plus noise ratio meet the prohibition reporting condition until the obtained measurement value meets the reporting condition; the cell switching device 600 also includes a sending unit 604, which is used to send a measurement report of the event to the network device.

[0095] In other embodiments of the present application, the sending unit 604 is used to send a measurement report of the event to the network device if the reference signal received power and the signal to interference plus noise ratio meet the reporting conditions; the processing unit 603 is used to switch from the serving cell to one of the at least one neighboring cells in the measurement report through the cell switching process.

[0096] In other embodiments of the present application, each measurement object is represented by a cell identifier or a frequency point in the cell.

[0097] In other embodiments of the present application, the serving cell is a new air interface cell, and the neighboring cell is a long term evolution cell; or, both the serving cell and the neighboring cell are new air interface cells.

[0098] It should be noted that, for the description of the same steps and the same contents in this embodiment as those in other embodiments, reference can be made to the description in other embodiments and will not be repeated here.

[0099] The embodiment of the present application provides a terminal device, the terminal device resides in a serving cell, and the terminal device can be applied to Figure 2 , Figure 5 In a cell switching method provided in a corresponding embodiment, referring to Figure 7 As shown, the terminal device 700 ( Figure 7 The terminal device 700 and Figure 6 The cell switching device 600 in FIG. 1 includes: a processor 701, a memory 702 and a communication bus 703, wherein:

[0100] The communication bus 703 is used to implement the communication connection between the processor 701 and the memory 702 .

[0101] The processor 701 is used to execute the cell switching program stored in the memory 702 to implement the following steps:

[0102] Receiving a measurement control message of an event sent by a network device, wherein the measurement control message includes at least one measurement object;

[0103] Measuring each measurement object to obtain a measurement value of the measurement object, wherein the measurement value includes a reference signal received power and a signal to interference plus noise ratio of the reference signal;

[0104] If the reference signal received power and the signal to interference plus noise ratio meet the reporting prohibition condition, the sending of the event measurement report to the network device is prohibited or delayed. The measurement report is used to trigger switching to a neighboring cell.

[0105] In other embodiments of the present application, the measurement objects include a serving cell and at least one neighboring cell; the reference signal received power, and the signal to interference plus noise ratio meet the reporting prohibition condition, including:

[0106] The reference signal received power of the serving cell is greater than the first threshold value of the serving cell, and the signal to interference plus noise ratio of the serving cell is greater than the second threshold value of the serving cell, and the reference signal received power of the neighboring cell is less than the third threshold value of the neighboring cell, or the signal and interference plus noise of the neighboring cell is less than the fourth threshold value of the neighboring cell.

[0107] In other embodiments of the present application, the measured value also includes the reference signal reception quality; the reference signal reception power, and the signal to interference plus noise ratio meets the prohibition reporting condition, and also includes:

[0108] The reference signal reception quality of the serving cell is greater than a fifth threshold value of the serving cell, or the reference signal reception quality of the neighboring cell is less than a sixth threshold value of the neighboring cell.

[0109] In other embodiments of the present application, the processor 701 is used to execute the cell switching program stored in the memory 702 to implement the following steps: if the reference signal received power and the signal to interference plus noise ratio meet the prohibition reporting conditions, reset the execution of measurement of each measurement object until the obtained measurement value meets the reporting conditions, and send a measurement report of the event to the network device.

[0110] In other embodiments of the present application, the processor 701 is used to execute the cell switching program stored in the memory 702 to implement the following steps: if the reference signal received power and the signal to interference plus noise ratio meet the reporting conditions, send a measurement report of the event to the network device, and switch from the serving cell to one of the at least one neighboring cells in the measurement report through the cell switching process.

[0111] In other embodiments of the present application, each measurement object is represented by a cell identifier or a frequency point in the cell.

[0112] In other embodiments of the present application, the serving cell is a new air interface cell, and the neighboring cell is a long term evolution cell; or, both the serving cell and the neighboring cell are new air interface cells.

[0113] It should be noted that, for the description of the same steps and the same contents in this embodiment as those in other embodiments, reference can be made to the description in other embodiments and will not be repeated here.

[0114] An embodiment of the present application provides a computer storage medium, which stores one or more programs. The one or more programs can be executed by one or more processors to implement the following steps:

[0115] Receiving a measurement control message of an event sent by a network device, wherein the measurement control message includes at least one measurement object;

[0116] Measuring each measurement object to obtain a measurement value of the measurement object, wherein the measurement value includes a reference signal received power and a signal to interference plus noise ratio of the reference signal;

[0117] If the reference signal received power and the signal to interference plus noise ratio meet the reporting prohibition condition, the sending of the event measurement report to the network device is prohibited or delayed. The measurement report is used to trigger switching to a neighboring cell.

[0118] In other embodiments of the present application, the measurement object includes a serving cell and at least one neighboring cell; the one or more programs may be executed by one or more processors, and the following steps may also be implemented:

[0119] The reference signal received power of the serving cell is greater than the first threshold value of the serving cell, and the signal to interference plus noise ratio of the serving cell is greater than the second threshold value of the serving cell, and the reference signal received power of the neighboring cell is less than the third threshold value of the neighboring cell, or the signal and interference plus noise of the neighboring cell is less than the fourth threshold value of the neighboring cell.

[0120] In other embodiments of the present application, the measured value also includes a reference signal reception quality; the one or more programs may be executed by one or more processors, and the following steps may also be implemented:

[0121] The reference signal reception quality of the serving cell is greater than a fifth threshold value of the serving cell, or the reference signal reception quality of the neighboring cell is less than a sixth threshold value of the neighboring cell.

[0122] In other embodiments of the present application, the measured value also includes a reference signal reception quality; the one or more programs may be executed by one or more processors, and the following steps may also be implemented:

[0123] If the reference signal received power and the signal to interference plus noise ratio meet the reporting prohibition condition, reset the execution measurement of each measurement object until the obtained measurement value meets the reporting condition, and send a measurement report of the event to the network device.

[0124] In other embodiments of the present application, the measured value also includes a reference signal reception quality; the one or more programs may be executed by one or more processors, and the following steps may also be implemented:

[0125] If the reference signal received power and the signal to interference plus noise ratio meet the reporting conditions, a measurement report of the event is sent to the network device, and the cell switching process is used to switch from the serving cell to one of the at least one neighboring cells in the measurement report.

[0126] In other embodiments of the present application, each measurement object is represented by a cell identifier or a frequency point in the cell.

[0127] In other embodiments of the present application, the serving cell is a new air interface cell, and the neighboring cell is a long term evolution cell; or, both the serving cell and the neighboring cell are new air interface cells.

[0128] It should be noted that, for the description of the same steps and the same contents in this embodiment as those in other embodiments, reference can be made to the description in other embodiments and will not be repeated here.

[0129] It should be noted that the above-mentioned computer storage medium / memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a magnetic random access memory (FRAM), a flash memory (Flash Memory), a magnetic surface memory, an optical disc, or a compact disc read-only memory (CD-ROM) and other memories; it can also be various terminals including one or any combination of the above-mentioned memories, such as mobile phones, computers, tablet devices, personal digital assistants, etc.

[0130] In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are only schematic. For example, the division of units is only a logical function division. There may be other division methods in actual implementation, such as: multiple units or components can be combined, or can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the components shown or discussed can be through some interfaces, and the indirect coupling or communication connection of devices or units can be electrical, mechanical or other forms.

[0131] The units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units; some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0132] In addition, all functional units in the embodiments of the present application can be integrated into one processing module, or each unit can be a separate unit, or two or more units can be integrated into one unit; the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units. A person of ordinary skill in the art can understand that all or part of the steps of implementing the above method embodiments can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium, which, when executed, executes the steps of the above method embodiments; and the aforementioned storage medium includes: mobile storage devices, read-only memory (ROM), random access memory (RAM), disks or optical disks, and other media that can store program codes.

[0133] The methods disclosed in several method embodiments provided in this application can be arbitrarily combined without conflict to obtain new method embodiments.

[0134] The features disclosed in several product embodiments provided in this application can be arbitrarily combined without conflict to obtain new product embodiments.

[0135] The features disclosed in several method or device embodiments provided in this application can be arbitrarily combined without conflict to obtain new method embodiments or device embodiments.

[0136] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A cell switching method, characterized in that: Applied to a call scenario of a 5G ultra-high-definition video call VoNR on a terminal device over 5G, or a scenario in which the terminal device receives an incoming call on 5G, the terminal device resides in a serving cell, and the method includes: Receiving a measurement control message of an event sent by a network device, wherein the measurement control message includes at least one measurement object; Measuring each measurement object to obtain a measurement value of the measurement object, wherein the measurement value includes a reference signal received power and a signal to interference plus noise ratio of the reference signal; If the reference signal received power and the signal to interference plus noise ratio meet the prohibition reporting condition, prohibit or delay sending a measurement report of the event to the network device, and the measurement report is used to trigger switching to a neighboring cell; the serving cell is a new air interface cell, and the neighboring cell is a long term evolution cell; or, both the serving cell and the neighboring cell are new air interface cells; The measurement object includes the serving cell and at least one neighboring cell; the reference signal received power, and the signal to interference plus noise ratio satisfying a reporting prohibition condition, including: The reference signal received power of the serving cell is greater than a first threshold value of the serving cell, and the signal to interference plus noise ratio of the serving cell is greater than a second threshold value of the serving cell, and the reference signal received power of the neighboring cell is less than a third threshold value of the neighboring cell, or the signal to interference plus noise ratio of the neighboring cell is less than a fourth threshold value of the neighboring cell; the first threshold value, the second threshold value, the third threshold value and the fourth threshold value are dynamically configured according to the dynamic configuration requirement sent by the network device.

2. The method according to claim 1, characterized in that The measurement value also includes a reference signal reception quality; The reference signal received power and the signal to interference plus noise ratio meet the reporting prohibition condition, further comprising: The reference signal reception quality of the serving cell is greater than a fifth threshold value of the serving cell, or the reference signal reception quality of the neighboring cell is less than a sixth threshold value of the neighboring cell.

3. The method according to claim 1, characterized in that If the reference signal received power and the signal to interference plus noise ratio meet the prohibition reporting condition, reset the measurement of each measurement object until the obtained measurement value meets the reporting condition, and send the measurement report of the event to the network device.

4. The method according to any one of claims 1 to 3, characterized in that If the reference signal received power and the signal to interference plus noise ratio meet the reporting conditions, the measurement report of the event is sent to the network device, and the cell is switched from the serving cell to one of the at least one neighboring cells in the measurement report through a cell switching process.

5. The method according to any one of claims 1 to 3, characterized in that Each measurement object is represented by a cell identifier or a frequency point in the cell.

6. A cell switching device, characterized in that: Applicable to a call scenario of 5G ultra-high-definition video calling VoNR on 5G by a terminal device, or a scenario in which the terminal device receives an incoming call on 5G, the terminal device resides in a serving cell, and the cell switching device includes: A receiving unit, configured to receive a measurement control message of an event sent by a network device, wherein the measurement control message includes at least one measurement object; A measuring unit, configured to measure each measurement object to obtain a measurement value of the measurement object, wherein the measurement value includes a reference signal received power and a signal to interference plus noise ratio of the reference signal; a processing unit, configured to prohibit or delay sending a measurement report of the event to the network device if the reference signal received power and the signal to interference plus noise ratio meet a prohibition reporting condition, wherein the measurement report is used to trigger switching to a neighboring cell; the serving cell is a new air interface cell, and the neighboring cell is a long term evolution cell; or, both the serving cell and the neighboring cell are new air interface cells; The measurement objects include the serving cell and at least one neighboring cell; the reference signal received power and the signal to interference plus noise ratio satisfy a prohibition reporting condition, including: the reference signal received power of the serving cell is greater than a first threshold value of the serving cell, and the signal to interference plus noise ratio of the serving cell is greater than a second threshold value of the serving cell, and the reference signal received power of the neighboring cell is less than a third threshold value of the neighboring cell, or the signal to interference plus noise ratio of the neighboring cell is less than a fourth threshold value of the neighboring cell; the first threshold value, the second threshold value, the third threshold value and the fourth threshold value are dynamically configured according to a dynamic configuration requirement sent by the network device.

7. A terminal device, characterized in that: The terminal device comprises: a processor, a memory and a communication bus; The communication bus is used to realize the communication connection between the processor and the memory; The processor is used to execute the cell switching program stored in the memory to implement the steps of the cell switching method according to any one of claims 1 to 5.

8. A storage medium, characterized in that: The storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to implement the steps of the cell switching method according to any one of claims 1 to 5.

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