CN111801964A

CN111801964A - Wireless communication method and device

Info

Publication number: CN111801964A
Application number: CN201880090488.8A
Authority: CN
Inventors: 卢哲军; 刘珺; 孙兵
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2018-07-13
Filing date: 2018-07-13
Publication date: 2020-10-20
Anticipated expiration: 2038-07-13
Also published as: WO2020010637A1; CN111801964B

Abstract

The application provides a wireless communication method and a wireless communication device, relates to the technical field of communication, and is used for improving the service quality of voice services so as to improve user experience. The method is applied to a terminal or a chip built in the terminal, and comprises the following steps: determining that the terminal operates a VoLTE service in a cell of a first communication system; enabling optimized features for the VoLTE traffic; wherein the optimized characteristic for the VoLTE service is used for reducing the probability of the terminal establishing a radio connection with a cell of a second communication system, and the radio access technology of the second communication system is different from that of the first communication system.

Description

Wireless communication method and device

Technical Field

The present application relates to the field of communications technologies, and in particular, to a wireless communication method and apparatus.

Background

Voice over LTE (VoLTE) service based on a Long Term Evolution (LTE) network is a voice solution for realizing service control by using an LTE network as a service access and an IP Multimedia Subsystem (IMS) network. VoLTE does not need a 2G/3G network, all services are borne in a 4G network, the unification of data services and voice services in the same network can be realized, and compared with voice services in the 2G/3G network, the voice quality can be greatly improved, and the access delay and the call drop rate can be reduced.

At present, when a terminal is in a VoLTE service, if a cell where the terminal is located has a link failure, a Physical Cell Identity (PCI) confusion or collision, a cell signal quality is poor, or the terminal is located at an edge of the cell, and the like, the terminal may continuously measure signal qualities of neighboring cells in a heterogeneous system, and report the signal qualities of the neighboring cells to a network side through a measurement report, the network side selects a suitable cell for the terminal according to the signal qualities of the neighboring cells in the measurement report, and moves the terminal to the selected cell, for example, the network side moves the terminal to a cell under a 2G/3G network with good signal quality, so as to ensure voice service continuity, and further ensure user experience.

Disclosure of Invention

Embodiments of the present application provide a wireless communication method and apparatus, which are used to improve the service quality of a voice service, so as to improve user experience.

In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions:

in a first aspect, a wireless communication method is provided, where the method is applied to a terminal or a chip built in the terminal, and the method includes: determining that the terminal operates the VoLTE service in a cell of a first communication system (e.g., an LTE communication system), for example, a signaling connection of the VoLTE service is established between the terminal and the cell of the first communication system, or the signaling connection and transmission of voice data coexist; enabling optimized features for VoLTE traffic; wherein the optimized characteristics for VoLTE traffic are used to reduce the probability that the terminal establishes a radio connection with a cell of a second communication system (e.g. a 2G/3G communication system), the radio access technology of the second communication system being different from the radio access technology of the first communication system.

In the above technical solution, when it is determined that the terminal operates the VoLTE service in the cell of the first communication system, the probability of establishing a wireless connection between the terminal and the cell of the second communication system is reduced by enabling the optimized characteristic for the VoLTE service, so that the terminal maintains the wireless connection with the cell of the first communication system, thereby continuing to operate the VoLTE service. Compared with the prior art that the continuity of the voice service is ensured by switching to the different system cell, the technical scheme reduces the interruption probability of the VoLTE service by reducing the probability of switching to the different system cell. Because indexes such as voice quality and call drop rate of the VoLTE service are often far better than those of the voice service of the second communication system (for example, a 2G/3G communication system), even if the cell quality of the first communication system may not be optimal, as long as the quality of the cell can continue to operate the VoLTE service, the user experience can be improved as a whole.

In a possible implementation manner of the first aspect, before enabling the optimized feature for the VoLTE service, the method further includes: determining to enable the optimized characteristic for the VoLTE service, namely judging whether to enable the optimized characteristic for the VoLTE service, and enabling the optimized characteristic for the VoLTE service when the judgment result is yes. In the foregoing possible implementation manner, by determining whether to enable the optimized characteristic for the VoLTE service, the terminal may enable the optimized characteristic for the VoLTE service in a specific scenario (e.g., a high-speed rail scenario), so as to improve the service quality of the voice service in the specific scenario.

In a possible implementation manner of the first aspect, determining a necessary condition for enabling an optimized feature for the VoLTE service includes: and determining that the terminal is in a high-speed rail scene. In the possible implementation manner, the service quality of the voice service in the high-speed rail scene is improved.

In one possible implementation manner of the first aspect, determining that the terminal is in a high-speed rail scene includes: a high-speed rail identification of a cell indication of a first communication system is detected.

In one possible implementation manner of the first aspect, determining that the terminal is in a high-speed rail scene includes: it is detected that the moving speed of the terminal is greater than or equal to a designated speed.

In the two possible implementation modes, two different determination modes for determining that the terminal is in a high-speed rail scene are provided, the operation is simple, and the detection is easy.

In a possible implementation manner of the first aspect, enabling optimized characteristics for VoLTE services includes: receiving a redirection message from a cell of a first communication system, wherein the redirection message is used for indicating the terminal to release wireless connection with the cell of the first communication system and establish wireless connection with a cell of a second communication system; the terminal is enabled to ignore the redirection message to maintain a wireless connection with the cell of the first communication system. In the possible implementation manner, when the terminal receives the redirection message, the terminal is enabled to ignore the redirection message to maintain the wireless connection with the cell of the first communication system, so that the problem of interruption or call drop of the VoLTE service caused by redirection by the terminal can be avoided, and the service quality of the voice service is further improved.

In a possible implementation manner of the first aspect, the method further includes: the measurement report is modified such that the signal quality of the cell causing the cell of the first communication system to trigger the terminal to redirect is not the best signal quality in the measurement report. In the possible implementation manner, the terminal may prevent the terminal from subsequently receiving the redirection message by modifying the measurement report, so as to maintain the wireless connection between the terminal and the cell of the first communication system, and ensure the service quality of the VoLTE service.

In a possible implementation manner of the first aspect, enabling optimized characteristics for VoLTE services includes: receiving a measurement configuration message from a cell of a first communication system, wherein the measurement configuration message is used for indicating the terminal to report a measurement report when the quality of the cell of a second communication system is better than a preset threshold; and enabling the terminal to report the measurement report when the quality of the cell of the second communication system is superior to the second threshold and the quality of the cell of the first communication system is inferior to the first threshold. In the possible implementation manner, when the terminal receives the measurement configuration message, the probability that the cell of the first communication system switches the terminal to the cell of the second communication system can be reduced by enabling the condition for reporting the measurement report, and the problem of call drop or interruption of the VoLTE service caused by the switching is avoided, so that the wireless connection between the terminal and the cell of the first communication system is maintained, and the service quality of the VoLTE service is ensured.

In a second aspect, there is provided a wireless communication apparatus, which is a terminal or a chip for a terminal, the apparatus comprising: the determining unit is used for determining that the terminal operates the VoLTE service in a cell of a first communication system; an enabling unit for enabling optimized characteristics for VoLTE services; the optimization characteristic aiming at the VoLTE service is used for reducing the probability of establishing wireless connection between the terminal and a cell of a second communication system, and the wireless access technology of the second communication system is different from that of the first communication system.

In a possible implementation manner of the second aspect, the determining unit is further configured to: an optimization characteristic enabling for VoLTE traffic is determined.

In a possible implementation manner of the second aspect, the determining unit is configured to determine a necessary condition for enabling the optimized feature for the VoLTE service, and includes: and determining that the terminal is in a high-speed rail scene.

In a possible implementation manner of the second aspect, the determining unit is further configured to: a high-speed rail identification of a cell indication of a first communication system is detected.

In a possible implementation manner of the second aspect, the determining unit is further configured to: it is detected that the moving speed of the terminal is greater than or equal to a designated speed.

In a possible implementation manner of the second aspect, the apparatus further includes: a receiving unit, configured to receive a redirection message from a cell of a first communication system, where the redirection message is used to instruct the terminal to release a wireless connection with the cell of the first communication system and establish a wireless connection with a cell of a second communication system; an enabling unit further configured to enable the terminal to ignore the redirection message to maintain a wireless connection with a cell of the first communication system.

In a possible implementation manner of the second aspect, the enabling unit is further configured to: the measurement report is modified such that the signal quality of the cell causing the cell of the first communication system to trigger the terminal to redirect is not the best signal quality in the measurement report.

In a possible implementation manner of the second aspect, the apparatus further includes: a receiving unit, configured to receive a measurement configuration message from a cell of a first communication system, where the measurement configuration message is used to indicate that the terminal reports a measurement report when the quality of the cell of a second communication system is better than a predetermined threshold; and the enabling unit is further used for enabling the terminal to report the measurement report when the quality of the cell of the second communication system is superior to the second threshold and the quality of the cell of the first communication system is inferior to the first threshold.

In a third aspect, there is provided a wireless communication apparatus, which is a terminal or a chip for a terminal, the apparatus comprising: a processor, and a memory coupled to the processor, the memory for storing program code that, when executed by the processor, causes the wireless communication device to perform the steps of: determining that the terminal operates the VoLTE service in a cell of a first communication system; enabling optimized features for VoLTE traffic; the optimized characteristic aiming at the VoLTE service is used for reducing the probability of establishing wireless connection between the terminal and a cell of a second communication system, and the wireless access technology of the second communication system is different from that of the first communication system.

In one possible implementation manner of the third aspect, the wireless communication apparatus further performs the following steps: an optimization characteristic enabling for VoLTE traffic is determined.

In one possible implementation of the third aspect, the determining the necessary condition to enable the optimized characteristic for VoLTE traffic by the wireless communication device comprises: and determining that the terminal is in a high-speed rail scene.

In one possible implementation manner of the third aspect, the wireless communication apparatus further performs the following steps: a high-speed rail identification of a cell indication of a first communication system is detected.

In one possible implementation manner of the third aspect, the wireless communication apparatus further performs the following steps: it is detected that the moving speed of the terminal is greater than or equal to a designated speed.

In one possible implementation manner of the third aspect, the wireless communication apparatus further performs the following steps: receiving a redirection message from a cell of a first communication system, wherein the redirection message is used for indicating the terminal to release wireless connection with the cell of the first communication system and establish wireless connection with a cell of a second communication system; the terminal is enabled to ignore the redirection message to maintain a wireless connection with the cell of the first communication system.

In one possible implementation manner of the third aspect, the wireless communication apparatus further performs the following steps: the measurement report is modified such that the signal quality of the cell causing the cell of the first communication system to trigger the terminal to redirect is not the best signal quality in the measurement report.

In one possible implementation manner of the third aspect, the wireless communication apparatus further performs the following steps: receiving a measurement configuration message from a cell of a first communication system, wherein the measurement configuration message is used for indicating the terminal to report a measurement report when the quality of the cell of a second communication system is better than a preset threshold; and enabling the terminal to report the measurement report when the quality of the cell of the second communication system is superior to the second threshold and the quality of the cell of the first communication system is inferior to the first threshold.

In a fourth aspect, a readable storage medium is provided, which has stored therein instructions that, when run on a device, cause the device to perform the wireless communication method provided by the first aspect or any one of the possible implementations of the first aspect.

In a fifth aspect, a computer program product is provided, which when run on a computer causes the computer to perform the wireless communication method provided by the first aspect or any of the possible implementations of the first aspect.

It is understood that the apparatus, the computer storage medium, or the computer program product of any of the wireless communication methods provided above is configured to execute the corresponding method provided above, and therefore, the beneficial effects achieved by the apparatus, the computer storage medium, or the computer program product may refer to the beneficial effects of the corresponding method provided above, and are not described herein again.

Drawings

Fig. 1 is a schematic diagram of a network architecture according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of a communication system according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of a terminal according to an embodiment of the present application;

fig. 4 is a first flowchart illustrating a wireless communication method according to an embodiment of the present application;

FIG. 5 is a flow chart illustrating a method of wireless communication;

fig. 6 is a schematic diagram of enabling an optimization characteristic for a VoLTE service according to an embodiment of the present application;

fig. 7 is a second flowchart illustrating a wireless communication method according to an embodiment of the present application;

fig. 8 is a first schematic structural diagram of a wireless communication device according to an embodiment of the present disclosure;

fig. 9 is a second schematic structural diagram of a wireless communication device according to an embodiment of the present application.

Detailed Description

The network architecture and the service scenario described in the embodiment of the present application are for more clearly illustrating the technical solution of the embodiment of the present application, and do not form a limitation on the technical solution provided in the embodiment of the present application, and as a person of ordinary skill in the art knows that along with the evolution of the network architecture and the appearance of a new service scenario, the technical solution provided in the embodiment of the present application is also applicable to similar technical problems.

As shown in fig. 1, a terminal accesses an IP Multimedia Subsystem (IMS) network through a radio access network (RAT) and a Core Network (CN). The techniques described herein may be applicable to Long Term Evolution (LTE) systems, which may include LTE systems that employ code division multiple access, frequency division multiple access, time division multiple access, orthogonal frequency division multiple access, single carrier frequency division multiple access, and the like. Furthermore, the method can also be applied to subsequent evolution systems based on the LTE system, such as a fifth generation (5G) communication system, a future communication system and the like. For clarity, the LTE system is only exemplified here. In the LTE system, an evolved UMTS terrestrial radio access network (E-UTRAN) serves as a radio access network, and an Evolved Packet Core (EPC) serves as a core network. The terminal accesses the IMS network through the E-UTRAN and the EPC.

In the present application, the terms "network" and "system" may be used interchangeably, but those skilled in the art will understand the meaning. The terminal referred to in the present application may include various handheld devices, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to a wireless modem having a wireless communication function, and various forms of User Equipment (UE), Mobile Station (MS), and terminal equipment (terminal equipment), etc. For convenience of description, the above-mentioned devices are collectively referred to as a terminal in this application. A Base Station (BS) according to the present invention is a device deployed in a radio access network to provide a terminal with a wireless communication function. The base stations may include various forms of macro base stations, micro base stations, relay stations, access points, and the like. In systems using different radio access technologies, the names of devices with base station functions may be different, for example, in LTE networks, referred to as evolved node bs (enbs/enodebs), in third generation 3G networks, referred to as node bs (node bs), and so on. For convenience of description, the above-mentioned apparatuses for providing a terminal with a wireless communication function are collectively referred to as a base station in this application.

The voice over LTE (voice over LTE) service is a voice service provided in an LTE network based on an IMS network, and voice data is transmitted through an IP data packet, and all services are carried on the LTE network, so that data and voice service can be transmitted in the same network.

Fig. 2 shows a schematic view of a VoLTE network architecture according to an embodiment of the present application, which mainly includes an IMS network, a core network EPC, an access network, and a terminal. The IMS network is used as a service control layer system, the EPC is used as a bearing layer, and the IMS system can realize the functions of voice call control and the like and can reasonably and flexibly charge the multimedia session.

The IMS network mainly includes a Call Session Control Function (CSCF), an Application Server (AS), a Session Border Controller (SBC), and the like. The IMS network and EPC network cooperate to provide voice services similar to circuit switched switch (CS) services of 2/3G networks and supplementary services thereof, such as number display, call forwarding, call waiting, conference calling, and the like. The CSCF is the core of the entire IMS network, and is mainly responsible for processing signaling control in a multimedia call session, and the CSCF may be responsible for managing user authentication of the IMS network, QoS on the IMS bearer, controlling an SIP session in cooperation with other network entities, and performing service negotiation and resource allocation. The SBC is used to protect the security of VoLTE by means of NAT traversal.

The EPC mainly includes a mobility management entity (mobility management entity), a Serving Gateway (SGW), a packet data gateway (PGW), a Policy and Charging Rules Function (PCRF), and a Home Subscriber Server (HSS). The access network mainly comprises a base station. And the terminal accesses the IMS network through the base station and the network element in the EPC. The MME is the core of the EPC, and is mainly responsible for signaling grooming, ciphering and integrity protection of the non-access stratum, and terminating user signaling. The mobility of the 3GPP user in the network is managed, which specifically includes processing of control signaling such as user access control, authentication, data encryption, service bearer control, paging, handover control, and the like. The SGW is used as an anchor point for switching between the base stations, and is mainly responsible for transmission, forwarding and routing of data information between the base stations and the PGW, so as to provide a cache for downlink data packets and realize user-based charging. The PGW is an anchor point of data bearer, and is mainly responsible for forwarding, parsing, lawful interception, service-based charging, and service QoS control of a data packet. The PCRF is mainly used for making a decision according to the service information used by the user and the policy information signed by the user, determining the policy of the service use and the charging of the user, and issuing the policy to a policy execution entity in the gateway. The HSS is configured to store user subscription information, where the stored information includes user identification information, user security control information, user location information, user policy control information, and the like.

Fig. 3 is a schematic structural diagram of a terminal according to an embodiment of the present application, where the terminal may be a mobile phone, a tablet computer, a wearable device, or a terminal device. The embodiment of the present application is described by taking the terminal as a mobile phone as an example, where the terminal includes: memory 301, processor 302, sensor component 303, multimedia component 304, power component 305, and input/output interface 306.

The various components of the terminal will now be described in detail with reference to fig. 1:

memory 301 may be used to store data, software programs, and modules; the system mainly comprises a storage program area and a storage data area, wherein the storage program area can store an operating system and application programs required by at least one function, such as a sound playing function, an image playing function and the like; the storage data area may store data created according to the use of the terminal, such as audio data, image data, a phonebook, and the like. In addition, the terminal may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 302 is a control center of the terminal, connects various parts of the entire apparatus using various interfaces and lines, performs various functions of the terminal and processes data by running or executing software programs and/or modules stored in the memory 301 and calling data stored in the memory 301, thereby monitoring the terminal as a whole. Alternatively, the processor 302 may include one or more processing units, for example, the processor 302 may integrate an Application Processor (AP), which mainly processes an operating system, a user interface, an application program, and the like, and a Digital Signal Processor (DSP), which may be a processing chip specifically integrated for a certain function. It will be appreciated that the DSP may not be integrated into the processor 302, as described above.

The sensor assembly 303 includes one or more sensors for providing various aspects of status assessment for the terminal. The sensor assembly 303 may include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor or a temperature sensor, and the acceleration/deceleration, the orientation, the on/off state of the terminal, the relative positioning of the components, or the temperature change of the terminal may be detected by the sensor assembly 303. In addition, the sensor assembly 303 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications.

The multimedia component 304 is a screen providing an output interface between the terminal and the user, and the screen may be a touch panel, and when the screen is a touch panel, the screen may be implemented as a touch screen to receive an input signal from the user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. The multimedia component 304 may further include at least one camera, for example, the multimedia component 304 may include a front camera and/or a rear camera. The front camera and/or the rear camera may receive external multimedia data when the terminal is in an operation mode, such as a photographing mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

The power components 305 are used to provide power to the various components of the terminal, and the power components 305 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the terminal. Input/output interface 306 provides an interface between processor 302 and peripheral interface modules, such as a keyboard, a mouse, etc.

Although not shown, the terminal may further include an audio component, a communication component, and the like, for example, the audio component includes a microphone, and the communication component includes a wireless fidelity (WiFi) module, a bluetooth module, and the like, which is not described herein again. Those skilled in the art will appreciate that the terminal structure shown in fig. 1 is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.

Fig. 4 is a flowchart illustrating a wireless communication method according to an embodiment of the present application, where the method is applied to a terminal or a chip built in the terminal, and referring to fig. 4, the method includes the following steps.

S401: and determining that the terminal runs the VoLTE service in the cell of the first communication system.

The first communication system may be an LTE system and a subsequent evolution system, such as a fifth generation communication system and a future communication system, and the first communication system may also be an LTE system that employs technologies such as time division duplex, frequency division duplex, code division multiple access, frequency division multiple access, time division multiple access, orthogonal frequency division multiple access, single carrier frequency division multiple access, and the like.

The voice over LTE (voice over LTE) service is a voice service provided in an LTE network based on an IMS network, and voice data is transmitted through an IP data packet, and all services are carried on the LTE network, so that data and voice service can be transmitted in the same network. The VoLTE service may be an audio call service, or an audio and video call.

The terminal operating the VoLTE service in the cell of the first communication system may be understood as: the terminal establishes a signaling connection of the VoLTE service in the cell of the first communication system, and at this time, there may be transmission of voice data or transmission of voice data between the terminal and the cell of the first communication system, which is not limited in this embodiment of the present application.

Specifically, determining that the terminal operates the VoLTE service in the cell of the first communication system may be implemented by: detecting whether signaling connection of the VoLTE service exists between the terminal and the cell of the first communication system, and determining that the terminal operates the VoLTE service in the cell of the first communication system when the signaling connection exists.

In practical application, the terminal may also determine that the terminal operates the VoLTE service in the cell of the first communication system through other manners. For example, when the terminal is in the cell of the first communication system, the terminal may detect the state of a speaker and a microphone in the terminal related to the VoLTE service, and when the speaker and the microphone are both in an active state, determine that the terminal operates the VoLTE service in the cell of the first communication system.

S402: the terminal enables an optimization feature for VoLTE services; the optimized characteristic aiming at the VoLTE service is used for reducing the probability of establishing wireless connection between the terminal and a cell of a second communication system, and the wireless access technology of the second communication system is different from that of the first communication system.

For example, the radio connection in the 2G communication system may be referred to as radio Resource (RC) connection, and the radio connection in the 3G communication system and the evolved system may be referred to as Radio Resource Control (RRC) connection.

In addition, the service quality of the VoLTE service operated by the terminal in the cell of the second communication system is lower than that of the VoLTE service operated by the terminal in the cell of the first communication system. For example, when the first communication system is an LTE system or a subsequent evolved system, the second communication system may be a 2G communication system or a 3G communication system. The radio access technology of the first communication system may be a radio access technology adopted by an evolved system, and the radio access technology of the second communication system may be a radio access technology adopted by a 2G/3G communication system.

Specifically, the terminal enables the optimized characteristics for the VoLTE service, which may include the following two cases, specifically, as described below.

The I type, the terminal enables the optimized characteristic for VoLTE service, including: receiving a redirection message from a cell of a first communication system, wherein the redirection message is used for instructing the terminal to release wireless connection with the cell of the first communication system and establish wireless connection with a cell of a second communication system; the terminal is enabled to ignore the redirection message to maintain a wireless connection with a cell of the first communication system.

Wherein enabling the terminal to ignore the redirection message to maintain the wireless connection of the terminal with the cell of the first communication system may comprise: the terminal does not respond to the redirection message, or the terminal does not release the radio connection with the cell of the first communication system, or does not follow the procedure execution of redirection in the prior art.

For example, when the terminal receives a redirection message of a message from the first communication system, the terminal may ignore the redirection message, that is, the terminal continues to execute according to the flow before receiving the redirection message as if the terminal did not receive the redirection message. Or, when the terminal receives the redirection message, the terminal stores the VoLTE service context, releases the wireless connection with the cell of the first communication system, reestablishes the wireless connection in the cell of the first communication system, and recovers the VoLTE service in the cell of the first communication system according to the stored VoLTE service context.

For convenience of understanding, a specific procedure of redirection in the prior art and a specific procedure of enabling the terminal to optimize characteristics for VoLTE service are illustrated here by taking the first communication system as a 4G communication system and the second communication system as a 2G/3G communication system as an example.

As shown in fig. 5, the redirection process in the prior art includes: the E-UTRAN of the 1.4G communication system sends a redirection message (such as RRC connection release with redirection information) to the terminal, informs the terminal to release the current wireless connection (such as special wireless resources), saves the upper PS service context, suspends the upper PS service, deletes the upper VOLTE service context, releases the upper VOLTE service, and re-initiates access in the UTRAN/GETRAN in the 2G/3G communication system designated by the redirection message; 2. when the terminal receives the redirection message, the terminal releases the current special wireless resource, saves the context of the upper PS service, suspends the upper PS service, deletes the context of the upper VOLTE service and releases the upper VOLTE service; 3. the terminal re-initiates access in the UTRAN/GETRAN in the 2/3G communication system specified by the redirect message; 4. the terminal performs Location Area Update (LAU) and Routing Area Update (RAU) in the UTRAN/GETRAN network, acquires upper PS service context information, maps and reconstructs the original load, and realizes the recovery and the persistence of the PS service; 5. and after the terminal recovers the upper PS service in the UTRAN/GETRAN network, the E-UTRAN deletes the upper PS service context and the VOLTE service context.

The process of the terminal enabling optimized features for VoLTE traffic may include: with reference to fig. 5, after the terminal receives the redirection message in step 2, the terminal does not perform the subsequent steps; alternatively, the terminal executes according to the flow shown in fig. 6 as follows.

As shown in fig. 6, the specific process of the terminal enabling the optimized characteristic for the VoLTE service includes: a base station E-UTRAN of the 4G communication system sends a redirection message (such as RRC connection release with redirection information) to the terminal, informs the terminal to release the current wireless connection (such as dedicated wireless resources), saves the upper PS service context, suspends the upper PS service, deletes the upper VOLTE service context, releases the upper VOLTE service, and re-initiates access in a UTRAN/GETRAN network in the 2G/3G communication system designated by the redirection message; 2. when the terminal receives the redirection message, the terminal releases the current special wireless resource, saves the context of the upper PS service, suspends the upper PS service, saves the context of the upper VOLTE service and suspends the upper VOLTE service; 3. if the cell where the terminal is currently located is an LTE cell A, the terminal initiates an RRC reestablishment process in the LTE cell A; and 4, after the RRC is successfully reestablished, the terminal acquires the context information of the upper PS service and the context information of the upper VOLTE service, maps and reestablishes the original bearer, and realizes the recovery and the continuation of the upper PS service and the VOLTE service.

It should be noted that the above upper PS service in fig. 5 and fig. 6 refers to application data seen by an end user, such as a data packet generated by surfing the internet; the upper PS service context refers to the relevant context information maintained by the terminal for the upper PS service, such as IP address, port number, QOS, etc.; the VoLTE service context refers to the relevant information maintained by the terminal for the VoLTE service, such as the opposite party number, the encoding or decoding type, the media type, and the like.

Further, the reason why the cell of the first communication system sends the redirection message to the terminal is that the cell of the first communication system cannot select the target cell for the terminal from at least one neighboring cell indicated by the measurement report according to the measurement report previously reported by the terminal, for example, a Physical Cell Identity (PCI) of a cell with the best signal quality in the measurement report is confused or collided with PCIs of other cells. The PCI confusion or collision of the cells may refer to a situation where it is not possible to determine which cell is the PCI, for example, when the PCIs of two cells are the same, the PCI confusion or collision may occur.

Therefore, after the terminal enables the optimized characteristic for the VoLTE service, the terminal may also modify the measurement report currently reported to the cell of the first communication system, so that the signal quality of the cell causing the cell of the first communication system to trigger the terminal to redirect in the currently reported measurement report is not the best signal quality in the currently reported measurement report, and thus the cell of the first communication system can select the cell with the best signal quality for the terminal according to the currently reported measurement report, and further does not need to trigger the redirection operation subsequently.

The measurement report is used to indicate the signal quality of at least one neighboring cell of the cell in which the terminal is located, where the at least one neighboring cell includes a cell neighboring to the cell in which the terminal is located in the first communication system, and may also include a cell neighboring to the cell in which the terminal is located in the second communication system.

Specifically, the terminal may continuously measure the signal quality of at least one neighboring cell of the cell in which the terminal is located, and report the signal quality of the at least one neighboring cell in the form of a measurement report to the cell of the first communication system. In this embodiment, when the terminal measures to obtain a current measurement report, the terminal modifies the cell with the best signal quality in the measurement report, that is, the cell of the first communication system triggers the cell to which the terminal is redirected. For example, the terminal may delete information of the neighbor cell with the best signal quality from the current measurement report, or the terminal may decrease the signal quality of the neighbor cell with the best signal quality in the current measurement report so that the neighbor cell with the best signal quality is not the neighbor cell with the best signal quality in at least one neighbor cell. Then, the terminal can send the modified measurement report to the network side, so that the cell of the first communication system can select the adjacent cell with the best signal quality for the terminal according to the currently reported measurement report, and the redirection operation is not required to be triggered subsequently.

For example, the at least one neighboring cell includes cell _1, cell _2, and cell _3, and the terminal obtains, by measurement, that the signal quality of cell _1 is 35, the signal quality of cell _2 is 40, and the signal quality of cell _3 is 30 in the at least one neighboring cell. Wherein, the signal quality of cell _2 is the cell with the best measured signal quality, and the PCI of cell _2 is confused or collided with the PCIs of other cells, then the terminal may reduce the signal quality of cell _2 in the current measurement report to 20, or delete the signal quality of cell _2 from the current measurement report. When the terminal sends the modified measurement report to the network side, the cell with the best signal quality selected by the network side according to the measurement report is cell _1, and as the PCI of the cell _1 is not mixed or collided with the PCIs of other cells, the network side does not need to trigger redirection operation subsequently.

II, the terminal enables the optimized characteristic aiming at the VoLTE service, and comprises the following steps: receiving a measurement configuration message from a cell of a first communication system, wherein the measurement configuration message is used for indicating that the terminal reports a measurement report when the quality of the cell of a second communication system is better than a preset threshold; and enabling the terminal to report the measurement report when the quality of the cell of the second communication system is superior to a second threshold and the quality of the cell of the first communication system is inferior to a first threshold.

Wherein, the predetermined threshold and the second threshold may be equal or unequal. The predetermined threshold may be specified by a communication protocol and the first threshold may be set in advance. When the predetermined threshold and the second threshold are not equal, the second threshold may also be set in advance, and the specifically set first threshold and the second threshold may be determined according to an actual situation, which is not limited in the embodiment of the present application.

In addition, the measurement configuration message is used to indicate a condition for reporting a measurement report by the terminal, and specifically, is used to indicate that the terminal reports the measurement report when the quality of the cell of the second communication system is better than a predetermined threshold. In this embodiment, when the terminal receives the measurement configuration message, the terminal may modify a condition for reporting the measurement report, specifically modify to report the measurement report when the quality of the cell of the second communication system is better than the second threshold and the quality of the cell of the first communication system is worse than the first threshold.

Specifically, if the terminal does not enable the optimized feature for the VoLTE service, when the terminal receives the measurement configuration message from the cell of the first communication system, the terminal measures the signal quality of the cell of the second communication system and sends a measurement report to the cell of the first communication system when the signal quality of the cell of the second communication system is better than a predetermined threshold. If the terminal enables the optimized characteristic for the VoLTE service, when the terminal receives the measurement configuration message from the cell of the first communication system, the terminal may measure the signal quality of the cell of the first communication system and the signal quality of the cell of the second communication system, and when the signal quality of the cell of the second communication system is better than the second threshold and the signal quality of the cell of the first communication system is worse than the first threshold, send a measurement report to the cell of the first communication system. Because the terminal triggers the operation of switching the terminal to the cell of the second communication system according to the measurement report reported by the terminal to the cell of the first communication system according to the measurement configuration information, the terminal can be prevented from reporting the measurement report to the cell of the first communication system by enabling the optimization characteristic aiming at the VoLTE service when the signal quality of the cell of the first communication system is better, so that the wireless connection between the terminal and the cell of the first communication system is maintained, the VoLTE service is maintained in the cell of the first communication system, and the quality of the VoLTE service is further improved.

Further, in conjunction with fig. 4, before S402, the terminal may also not directly enable the optimized characteristic for the VoLTE service, but determine whether the optimized characteristic for the VoLTE service is enabled, and execute step S402 when determining that the optimized characteristic for the VoLTE service is enabled, that is, referring to fig. 7, the method further includes: and S403.

S403: the terminal determines to enable optimized characteristics for VoLTE traffic.

Wherein, the terminal determining whether to enable the optimized characteristic for the VoLTE service may be understood as: the terminal judges whether a function switch for optimizing the characteristics of the VoLTE service is turned on or not, if so, the terminal determines to enable the optimizing characteristics of the VoLTE service (namely, turns on the optimizing characteristics of the enabling to the VoLTE service), and if not, the terminal does not enable the optimizing characteristics of the VoLTE service (namely, does not turn on the optimizing characteristics of the enabling to the VoLTE service).

In one possible implementation, determining the necessary conditions to enable the optimized features for VoLTE traffic includes: and determining that the terminal is in a high-speed rail scene.

Since the terminal is usually moved to the 2/3G communication system when the terminal is in the VoLTE service in the high-speed rail scenario, and moving the terminal to the 2/3G communication system may affect the quality of the voice service, the terminal determines to enable the optimized characteristic for the VoLTE service when determining that the terminal operates the VoLTE service in the cell of the first communication system and determining that the terminal is in the high-speed rail scenario, so as to enable the optimized characteristic for the VoLTE service, so as to maintain the wireless connection between the terminal and the cell of the first communication system, thereby ensuring the quality of the VoLTE service.

Specifically, determining that the terminal is in a high-speed rail scene may be performed in the following ways: detecting a high-speed rail identifier indicated by a cell of a first communication system; or detecting that the moving speed of the terminal is greater than or equal to a specified speed; or detecting a high-speed rail mark indicated by a cell of the first communication system and detecting that the moving speed of the terminal is greater than or equal to a specified speed.

The first communication system may be a dedicated network specifically established for a high-speed rail scene, and the dedicated network may be identified by a high-speed rail identifier, so that the terminal may determine that the terminal is in the high-speed rail scene when detecting the high-speed rail identifier indicated by the cell of the first communication system. Alternatively, the terminal may determine that the terminal is in a high-speed train scene when detecting that the moving speed of the terminal is greater than or equal to a specified speed, which may be set in advance, for example, the specified speed may be the lowest speed when the high-speed train runs. Or when the high-speed rail mark indicated by the cell of the first communication system is detected and the moving speed of the terminal is greater than or equal to the specified speed, the terminal is determined to be in the high-speed rail scene, so that the determination accuracy is improved.

In the wireless communication method provided by the embodiment of the application, when it is determined that the terminal operates the VoLTE service in the cell of the first communication system and it is determined that the terminal is in a high-speed rail scene, by enabling the optimization characteristic for the VoLTE service, when the cell where the terminal is located has link failure, PCI confusion or collision, poor cell signal quality, or the terminal is located at the edge of the cell, and the like, the wireless connection between the terminal and the cell of the second communication system is reduced to maintain the wireless connection between the terminal and the cell of the first communication system, thereby improving the service quality of the voice service and improving the user experience.

It should be noted that the above-mentioned determining that the terminal is in the high-speed rail scenario may be a necessary condition of the above-mentioned step S403, that is, according to the terminal being in the high-speed rail scenario, it may be determined to enable the optimized characteristic for the VoLTE service; the above-mentioned determining that the terminal is in the high-speed rail scenario may also be a sufficient condition of the above-mentioned step S403, that is, the terminal may be determined to be in the high-speed rail scenario according to the determination that the optimization characteristic for the VoLTE service is enabled, or the determining that the terminal is in the high-speed rail scenario may not be a sufficient condition of the above-mentioned step S403; in addition, determining the enabling of the optimization characteristic for the VoLTE service may further include other necessary conditions, which are not specifically limited in the embodiment of the present application.

In practical applications, the necessary condition for determining the optimized characteristic for the VoLTE service may be other conditions, and the embodiment of the present application is only described by taking a high-speed rail scenario as an example, and is not limited to this specifically. For example, determining the necessary condition to enable the optimized feature for the VoLTE service may further include determining that the terminal is in a subway scene, or other scenes similar to a high-speed rail scene, such as a light rail scene.

The above-mentioned scheme provided by the embodiment of the present application is introduced mainly from the perspective of interaction between network elements. It will be appreciated that each network element, e.g. terminal, comprises corresponding hardware structures and/or software modules for performing each function in order to implement the above-described functions. Those of skill in the art would readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware, software, or combinations of hardware and software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In the embodiment of the present application, the terminal may be divided into the functional modules according to the method example, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. It should be noted that, in the embodiment of the present application, the division of the module is schematic, and is only one logic function division, and there may be another division manner in actual implementation. The following description will be given taking the example of dividing each functional module corresponding to each function.

Fig. 8 is a schematic structural diagram of a wireless communication device according to the foregoing embodiments, where the device may implement the functions of the terminal in the method provided in the embodiments of the present application. The device may be a terminal or a device that can support the terminal to implement the functions of the terminal in the embodiment of the present application, for example, the device is a chip system applied in the terminal. The device includes: a determination unit 801 and an enable unit 802. Wherein the determining unit 801 may be configured to support the apparatus to perform steps S401, S403 in the above method embodiment, and/or other technical processes described herein; the enabling unit 802 may be used to enable the apparatus to perform the step S402 in the above-described method embodiment, and the step of modifying the measurement report. Further, the apparatus may further include: a receiving unit 803; wherein the receiving unit 803 is configured to support the apparatus to perform the step of receiving the redirection message and/or the measurement configuration message from the cell of the first communication system in the above-described method embodiment. All relevant contents of each step related to the above method embodiment may be referred to the functional description of the corresponding functional module, and are not described herein again.

Optionally, in the embodiment of the present application, the chip system may be composed of a chip, and may also include a chip and other discrete devices.

Alternatively, the receiving unit 803 in the embodiment of the present application may be a circuit, a device, an interface, a bus, a software module, a transceiver, or any other device that can implement communication.

Alternatively, the receiving unit 803 may be a terminal or a communication interface of a chip system applied in the terminal, for example, the communication interface may be a receiving and transmitting circuit, and the determining unit 801 and the enabling unit 802 may be processors integrated on the terminal or the chip system applied in the terminal.

Fig. 9 is a schematic diagram illustrating a possible logical structure of the wireless communication apparatus according to the above embodiments, which can implement the functions of the terminal in the method provided in the embodiments of the present application. The device can be a terminal or a chip system applied in the terminal, and comprises: a processor 902 and a communication interface 903. The processor 902 is configured to control and manage the operation of the apparatus shown in fig. 9, and for example, the processor 902 is configured to execute a step of performing message or data processing on the apparatus side shown in fig. 9. For example, the apparatus shown in support of fig. 9 performs steps S401 to S403 in the above-described method embodiment, and/or other processes for the techniques described herein. The communication interface is used to support the apparatus shown in fig. 9 to perform the steps of receiving a redirection message and/or a measurement configuration message from a cell of the first communication system in the above-described method embodiment. Optionally, the apparatus shown in fig. 9 may further comprise a memory 901 for storing program codes and data of the apparatus.

The processor 902 may be a processor or controller, such as a central processing unit, general purpose processor, digital signal processor, application specific integrated circuit, field programmable gate array or other programmable logic device, transistor logic, hardware component, or any combination thereof. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure of the embodiments of the application. A processor may also be a combination of computing functions, e.g., a combination of one or more microprocessors, a digital signal processor and a microprocessor, or the like. The communication interface 902 may be a transceiver, a transceiving circuit, a communication interface, or the like. The memory 901 may be a high-speed random access memory or a nonvolatile memory or the like.

Illustratively, the communication interface 903, the processor 902, and the memory 901 are interconnected via a bus 904; the bus 904 may be a PCI bus or an EISA bus, etc. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in fig. 9, but this does not indicate only one bus or one type of bus. The memory 901 is used for storing program codes and data of the apparatus. The communication interface 903 is used for supporting the apparatus to communicate with other devices, and the processor 902 is used for supporting the apparatus to execute the program codes stored in the memory 901 to implement the steps in the method provided by the embodiment of the present application.

Optionally, the memory 901 may be included in the processor 902.

According to the device provided by the embodiment of the application, when the terminal is determined to operate the VoLTE service in the cell of the first communication system and the terminal is determined to be in a high-speed rail scene, the wireless connection between the terminal and the cell of the second communication system is reduced by enabling the optimization characteristic aiming at the VoLTE service, so that the wireless connection between the terminal and the cell of the first communication system is maintained, the service quality of the voice service is improved, and the user experience is improved.

The method provided by the embodiment of the present application may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, a network appliance or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., Digital Video Disk (DVD)), or a semiconductor medium (e.g., SSD), among others.

With this understanding, the present application also provides a computer-readable storage medium, which stores instructions that, when executed on a computer, cause the computer to perform one or more steps of the terminal in the above method embodiments.

Embodiments of the present application also provide a computer program product containing instructions, which when run on a computer, cause the computer to perform one or more steps of the terminal in the above method embodiments.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

A wireless communication method is applied to a terminal or a chip built in the terminal, and the method comprises the following steps:

determining that the terminal operates a VoLTE service in a cell of a first communication system;

enabling optimized features for the VoLTE traffic;

wherein the optimized characteristic for the VoLTE service is used for reducing the probability of the terminal establishing a radio connection with a cell of a second communication system, and the radio access technology of the second communication system is different from that of the first communication system.
The wireless communication method of claim 1, wherein before enabling the optimized features for the VoLTE traffic, the method further comprises:

determining an optimization characteristic that enables for the VoLTE traffic.
The wireless communication method according to claim 2, wherein the determining the necessary conditions to enable the optimized features for the VoLTE traffic comprises:

and determining that the terminal is in a high-speed rail scene.
The method of claim 3, wherein the determining that the terminal is in a high-speed rail scenario comprises:

detecting a high-speed rail identification indicated by a cell of the first communication system.
The method of claim 3, wherein the determining that the terminal is in a high-speed rail scenario comprises:

and detecting that the moving speed of the terminal is greater than or equal to a specified speed.
The wireless communication method according to any of claims 1-5, wherein the enabling of optimized features for the VoLTE traffic comprises:

receiving a redirection message from a cell of the first communication system, wherein the redirection message is used for instructing the terminal to release wireless connection with the cell of the first communication system and establish wireless connection with a cell of the second communication system;

enabling the terminal to ignore the redirection message to maintain a wireless connection with a cell of the first communication system.
The wireless communication method of claim 6, wherein the method further comprises:

modifying the measurement report such that the signal quality of the cell causing the cell of the first communication system to trigger the terminal redirection is not the best signal quality in the measurement report.
The wireless communication method according to any of claims 1-5, wherein enabling optimized features for VoLTE traffic comprises:

receiving a measurement configuration message from a cell of the first communication system, wherein the measurement configuration message is used for indicating that the terminal reports a measurement report when the quality of the cell of the second communication system is better than a preset threshold;

and enabling the terminal to report the measurement report when the quality of the cell of the second communication system is superior to a second threshold and the quality of the cell of the first communication system is inferior to a first threshold.
A wireless communication apparatus, wherein the apparatus is a terminal or a chip for a terminal, the apparatus comprising:

the determining unit is used for determining that the terminal operates the VoLTE service in a cell of a first communication system;

an enabling unit configured to enable an optimized characteristic for the VoLTE service;

wherein the optimized characteristic for the VoLTE service is used for reducing the probability of the terminal establishing a radio connection with a cell of a second communication system, and the radio access technology of the second communication system is different from that of the first communication system.
The wireless communication apparatus of claim 9, wherein the determining unit is further configured to:

determining an optimization characteristic that enables for the VoLTE traffic.
The wireless communication apparatus of claim 10, wherein the determining unit is configured to determine the necessary conditions for enabling the optimized features for the VoLTE service, and comprises:

and determining that the terminal is in a high-speed rail scene.
The wireless communication apparatus of claim 11, wherein the determining unit is further configured to:

detecting a high-speed rail identification indicated by a cell of the first communication system.
The wireless communication apparatus of claim 11, wherein the determining unit is further configured to:

and detecting that the moving speed of the terminal is greater than or equal to a specified speed.
The wireless communication device according to any of claims 9-10,

the device further comprises: a receiving unit, configured to receive a redirection message from a cell of the first communication system, where the redirection message is used to instruct the terminal to release a wireless connection with the cell of the first communication system and establish a wireless connection with a cell of the second communication system;

the enabling unit is further configured to enable the terminal to ignore the redirection message to maintain a wireless connection with a cell of the first communication system.
The wireless communications apparatus of claim 14, wherein the enabling unit is further configured to:

modifying the measurement report such that the signal quality of the cell causing the cell of the first communication system to trigger the terminal redirection is not the best signal quality in the measurement report.
The wireless communication device according to any of claims 9-13,

the device further comprises: a receiving unit, configured to receive a measurement configuration message from a cell of the first communication system, where the measurement configuration message is used to instruct the terminal to report a measurement report when the quality of the cell of the second communication system is better than a predetermined threshold;

the enabling unit is further configured to enable the terminal to report the measurement report when the quality of the cell of the second communication system is better than a second threshold and the quality of the cell of the first communication system is worse than a first threshold.
A wireless communication apparatus, wherein the apparatus is a terminal or a chip for a terminal, the apparatus comprising: a processor, and a memory coupled to the processor, the memory for storing program code that, when executed by the processor, causes the wireless communication device to perform the steps of:

determining that the terminal operates a VoLTE service in a cell of a first communication system;

enabling optimized features for the VoLTE traffic;

wherein the optimized characteristic for the VoLTE service is used for reducing the probability of the terminal establishing a radio connection with a cell of a second communication system, and the radio access technology of the second communication system is different from that of the first communication system.
The wireless communication apparatus according to claim 17, wherein the wireless communication apparatus further performs the following steps:

determining an optimization characteristic that enables for the VoLTE traffic.
The wireless communications apparatus of claim 18, wherein the wireless communications apparatus performs the determining a requirement to enable optimized features for the VoLTE traffic, comprising:

and determining that the terminal is in a high-speed rail scene.
The wireless communication apparatus according to claim 19, wherein the wireless communication apparatus further performs the following steps:

detecting a high-speed rail identification indicated by a cell of the first communication system.
The wireless communication apparatus according to claim 19, wherein the wireless communication apparatus further performs the following steps:

and detecting that the moving speed of the terminal is greater than or equal to a specified speed.
The wireless communication device according to any of claims 17-21, wherein the wireless communication device further performs the steps of:

receiving a redirection message from a cell of the first communication system, wherein the redirection message is used for instructing the terminal to release wireless connection with the cell of the first communication system and establish wireless connection with a cell of the second communication system;

enabling the terminal to ignore the redirection message to maintain a wireless connection with a cell of the first communication system.
The wireless communication apparatus of claim 22, wherein the wireless communication apparatus further performs the following steps:

modifying the measurement report such that the signal quality of the cell causing the cell of the first communication system to trigger the terminal redirection is not the best signal quality in the measurement report.
The wireless communication device according to any of claims 17-21, wherein the wireless communication device further performs the steps of:

receiving a measurement configuration message from a cell of the first communication system, wherein the measurement configuration message is used for indicating that the terminal reports a measurement report when the quality of the cell of the second communication system is better than a preset threshold;

and enabling the terminal to report the measurement report when the quality of the cell of the second communication system is superior to a second threshold and the quality of the cell of the first communication system is inferior to a first threshold.
A readable storage medium having stored therein instructions that, when run on a device, cause the device to perform the wireless communication method of any one of claims 1-8.
A computer program product, which, when run on a computer, causes the computer to perform the wireless communication method of any one of claims 1 to 8.