CN107046696B

CN107046696B - Communication network switching method and mobile terminal

Info

Publication number: CN107046696B
Application number: CN201710245704.9A
Authority: CN
Inventors: 刘小猛
Original assignee: Nanjing Huanjia Internet Of Things Technology Co Ltd
Current assignee: Nanjing Youda Medical Information Technology Co.,Ltd.
Priority date: 2017-04-14
Filing date: 2017-04-14
Publication date: 2020-08-07
Anticipated expiration: 2037-04-14
Also published as: CN107046696A

Abstract

The embodiment of the invention discloses a method for switching a communication network and a mobile terminal, wherein the method comprises the steps of receiving a measurement event issued by a network, obtaining a designated threshold value in a GSM signal in the measurement event, measuring the L TE signal intensity of a current service cell and the GSM signal intensity of an adjacent service cell, judging whether L TE signal intensity is smaller than the preset threshold value, if so, reporting a first measurement report to the network, wherein the GSM signal intensity in the first measurement report is an actual measurement value, otherwise, reporting a second measurement report to the network, wherein the GSM signal intensity in the second measurement report is a preset intensity value, and the preset intensity value is smaller than the designated threshold value.

Description

Communication network switching method and mobile terminal

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method for switching a communications network and a mobile terminal.

Background

As operators continue to build L TE networks, more and more places have covered L TE, &lttttranslation = L "&tttl &ltt/t &tttte networks which can provide hundreds of megabits of data transfer rates, which are fully sufficient for conventional Voice transfer, and can then afford to transfer data in multimedia form of high definition digital Voice, high definition video, etc. which requires higher transfer rates, although L TE networks can use VO L TE technology to transfer such multimedia data, in areas without L TE networks, we can still use conventional analog data to form Voice data for transfer via analog-to-digital conversion, so when we use VO L TE for high definition Voice or video calls, when we move to the L TE network coverage edge, a single standby communication network switch srvcc (single Call) occurs, which switches to continue the normal Voice over-CS sessions of high definition Voice negotiation L.

However, due to the unilateral reason of the network, sometimes the network issues an incorrect handover evaluation measurement event or the network does not issue a handover command after receiving the measurement report reported by the terminal, which may cause the terminal to frequently and excessively fast handover from L TE to GSM network call.

Disclosure of Invention

The embodiment of the invention provides a communication network switching method and a mobile terminal, and aims to influence user experience by switching from L TE to GSM network conversation frequently and excessively fast at the mobile terminal.

In view of this, a first aspect of the embodiments of the present invention provides a method for switching a communication network, which is applied to a mobile terminal, and is characterized by including the steps of:

receiving a measurement event issued by a network;

obtaining the appointed threshold value in the GSM signal in the measuring event, and measuring the L TE signal intensity of the current service cell and the GSM signal intensity of the adjacent service cell;

judging whether the intensity of the L TE signal is smaller than a preset threshold value;

if so, reporting a first measurement report to the network, wherein the GSM signal strength in the first measurement report is an actual measurement value;

and if not, reporting a second measurement report to the network, wherein the GSM signal strength in the second measurement report is a preset strength value, and the preset strength value is smaller than the specified threshold value.

In a possible design, after receiving a measurement event issued by the network and before acquiring a specified threshold in a GSM signal in the measurement event, the method further includes the steps of:

determining whether the measurement event is a B1 event;

and if so, executing the step of acquiring the specified threshold value in the GSM signal in the measurement event.

In this embodiment, after determining whether the measurement event is the B1 event, the method further includes:

if the measurement event is not the B1 event, judging whether the measurement event is the B2 event;

and if so, executing the step of reporting the second measurement report to the network.

In one possible design, the L TE signal strength in the first measurement report is an actual measurement value, and after the first measurement report reported to the network, the method further includes the steps of:

judging whether the L TE signal strength in the first measurement report is smaller than a preset threshold value;

if so, judging whether the GSM signal strength in the first measurement report is greater than the specified threshold value;

if yes, detecting whether a switching instruction sent by the network is received within preset time;

if not, sending a routing area updating request to the network.

In this embodiment, whether to use a timer or a timer within the preset time is determined.

A second aspect of an embodiment of the present invention provides a mobile terminal, including:

a receiving unit, configured to receive a measurement event sent by a network;

an obtaining unit, configured to obtain a specified threshold in a GSM signal in the measurement event;

a measuring unit, configured to measure L TE signal strength of the current serving cell and GSM signal strength of the neighboring serving cell;

l TE judgment unit, for judging whether the L TE signal strength is less than a preset threshold;

a measurement report reporting unit, configured to report a first measurement report to the network if the L TE signal strength is smaller than a preset threshold, where a GSM signal strength in the first measurement report is an actual measurement value;

the measurement report reporting unit is further configured to report a second measurement report to the network if the L TE signal strength is not less than a preset threshold, where a GSM signal strength in the second measurement report is a preset strength value, and the preset strength value is less than the specified threshold.

In a possible design, an information determining unit is further included, and is configured to determine whether the measurement event is a B1 event.

In this embodiment, the information determining unit is further configured to determine whether the measurement event is a B2 event.

In one possible design, further comprising:

the report judging unit is used for judging whether the L TE signal strength in the first measurement report is smaller than a preset threshold value or not, and if so, judging whether the GSM signal strength in the first measurement report is larger than the specified threshold value or not;

the detection unit is used for detecting whether a switching instruction sent by the network is received within a preset time;

and the request unit is used for sending a routing area updating request to the network if the switching instruction sent by the network is not received within the preset time.

In this embodiment, the detection unit is configured to determine whether the time is within the preset time through a timer or a timer.

It can be seen from the above technical solutions that, in the embodiment of the present invention, when the measured L TE signal strength is higher than the preset threshold, in the reported measurement report, the GSM signal strength is changed to be slightly smaller than the specified threshold, and then the network determines whether to perform SRVCC handover.

Drawings

Fig. 1 is a schematic diagram of a hardware structure of a mobile terminal implementing various embodiments of the present invention;

FIG. 2 is a diagram of a wireless communication system for the mobile terminal shown in FIG. 1;

FIG. 3 is a diagram illustrating an embodiment of a method for handover of a communication network;

FIG. 4 is a diagram illustrating a method for handover of a communication network according to another embodiment of the present invention;

FIG. 5 is a diagram illustrating another embodiment of a method for handover of a communication network according to the present invention;

FIG. 6 is a diagram illustrating a method for handover of a communication network according to another embodiment of the present invention;

FIG. 7 is a diagram of a mobile terminal according to an embodiment of the present invention;

FIG. 8 is a diagram of another embodiment of a mobile terminal according to the invention;

fig. 9 is a diagram of another embodiment of a mobile terminal according to the present invention;

the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no specific meaning in itself. Thus, "module", "component" or "unit" may be used mixedly.

The terminal may be implemented in various forms. For example, the terminal described in the present invention may include a mobile terminal such as a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a Personal Digital Assistant (PDA), a Portable Media Player (PMP), a navigation device, a wearable device, a smart band, a pedometer, and the like, and a fixed terminal such as a Digital TV, a desktop computer, and the like.

The following description will be given by way of example of a mobile terminal, and it will be understood by those skilled in the art that the construction according to the embodiment of the present invention can be applied to a fixed type terminal, in addition to elements particularly used for mobile purposes.

Referring to fig. 1, which is a schematic diagram of a hardware structure of a mobile terminal for implementing various embodiments of the present invention, the mobile terminal 100 may include: RF (Radio Frequency) unit 101, WiFi module 102, audio output unit 103, a/V (audio/video) input unit 104, sensor 105, display unit 106, user input unit 107, interface unit 108, memory 109, processor 110, and power supply 111. Those skilled in the art will appreciate that the mobile terminal architecture shown in fig. 1 is not intended to be limiting of mobile terminals, which may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.

The following describes each component of the mobile terminal in detail with reference to fig. 1:

the Radio Frequency unit 101 may be configured to receive and transmit signals during a message transmission or call, specifically, receive downlink information of a base station and then process the received downlink information to the processor 110, and transmit uplink data to the base station, in General, the Radio Frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like, and in addition, the Radio Frequency unit 101 may further communicate with a network and other devices through wireless communication, and the wireless communication may use any communication standard or protocol, including, but not limited to, GSM (Global Time System for mobile communication), GPRS (General Packet Radio Service), CDMA2000(Code Division Multiple Access 2000), WCDMA (Wideband Code Division Multiple Access ), TD-SCDMA (Synchronous Time Division Multiple Access, Code Division Multiple Access, Time Division Multiple Access, etc. (Time Division Multiple Access L-L).

WiFi belongs to short-distance wireless transmission technology, and the mobile terminal can help a user to receive and send e-mails, browse webpages, access streaming media and the like through the WiFi module 102, and provides wireless broadband internet access for the user. Although fig. 1 shows the WiFi module 102, it is understood that it does not belong to the essential constitution of the mobile terminal, and may be omitted entirely as needed within the scope not changing the essence of the invention.

The audio output unit 103 may convert audio data received by the radio frequency unit 101 or the WiFi module 102 or stored in the memory 109 into an audio signal and output as sound when the mobile terminal 100 is in a call signal reception mode, a call mode, a recording mode, a voice recognition mode, a broadcast reception mode, or the like. Also, the audio output unit 103 may also provide audio output related to a specific function performed by the mobile terminal 100 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 103 may include a speaker, a buzzer, and the like.

The a/V input unit 104 is used to receive audio or video signals. The a/V input Unit 104 may include a Graphics Processing Unit (GPU) 1041 and a microphone 1042, the Graphics processor 1041 Processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 106. The image frames processed by the graphic processor 1041 may be stored in the memory 109 (or other storage medium) or transmitted via the radio frequency unit 101 or the WiFi module 102. The microphone 1042 may receive sounds (audio data) via the microphone 1042 in a phone call mode, a recording mode, a voice recognition mode, or the like, and may be capable of processing such sounds into audio data. The processed audio (voice) data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 101 in case of a phone call mode. The microphone 1042 may implement various types of noise cancellation (or suppression) algorithms to cancel (or suppress) noise or interference generated in the course of receiving and transmitting audio signals.

The mobile terminal 100 also includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 1061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 1061 and/or a backlight when the mobile terminal 100 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally, three axes), can detect the magnitude and direction of gravity when stationary, and can be used for applications of recognizing the posture of a mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer and tapping), and the like; as for other sensors such as a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which can be configured on the mobile phone, further description is omitted here.

The Display unit 106 may include a Display panel 1061, and the Display panel 1061 may be configured in the form of a liquid Crystal Display (L acquired Crystal Display, L CD), an Organic light-Emitting Diode (O L ED), or the like.

The user input unit 107 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the mobile terminal. Specifically, the user input unit 107 may include a touch panel 1071 and other input devices 1072. The touch panel 1071, also referred to as a touch screen, may collect a touch operation performed by a user on or near the touch panel 1071 (e.g., an operation performed by the user on or near the touch panel 1071 using a finger, a stylus, or any other suitable object or accessory), and drive a corresponding connection device according to a predetermined program. The touch panel 1071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 110, and can receive and execute commands sent by the processor 110. In addition, the touch panel 1071 may be implemented in various types, such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 1071, the user input unit 107 may include other input devices 1072. In particular, other input devices 1072 may include, but are not limited to, one or more of a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like, and are not limited to these specific examples.

Further, the touch panel 1071 may cover the display panel 1061, and when the touch panel 1071 detects a touch operation thereon or nearby, the touch panel 1071 transmits the touch operation to the processor 110 to determine the type of the touch event, and then the processor 110 provides a corresponding visual output on the display panel 1061 according to the type of the touch event. Although the touch panel 1071 and the display panel 1061 are shown in fig. 1 as two separate components to implement the input and output functions of the mobile terminal, in some embodiments, the touch panel 1071 and the display panel 1061 may be integrated to implement the input and output functions of the mobile terminal, and is not limited herein.

The interface unit 108 serves as an interface through which at least one external device is connected to the mobile terminal 100. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 108 may be used to receive input (e.g., data information, power, etc.) from external devices and transmit the received input to one or more elements within the mobile terminal 100 or may be used to transmit data between the mobile terminal 100 and external devices.

The memory 109 may be used to store software programs as well as various data. The memory 109 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 109 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 110 is a control center of the mobile terminal, connects various parts of the entire mobile terminal using various interfaces and lines, and performs various functions of the mobile terminal and processes data by operating or executing software programs and/or modules stored in the memory 109 and calling data stored in the memory 109, thereby performing overall monitoring of the mobile terminal. Processor 110 may include one or more processing units; preferably, the processor 110 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 110.

The mobile terminal 100 may further include a power supply 111 (e.g., a battery) for supplying power to various components, and preferably, the power supply 111 may be logically connected to the processor 110 via a power management system, so as to manage charging, discharging, and power consumption management functions via the power management system.

Although not shown in fig. 1, the mobile terminal 100 may further include a bluetooth module or the like, which is not described in detail herein.

In order to facilitate understanding of the embodiments of the present invention, a communication network system on which the mobile terminal of the present invention is based is described below.

Referring to fig. 2, fig. 2 is an architecture diagram of a communication Network system according to an embodiment of the present invention, the communication Network system is L TE system of universal mobile telecommunications technology, and the L TE system includes a UE (user equipment) 201, an E-UTRAN (Evolved UMTS Terrestrial Radio Access Network) 202, an EPC (Evolved Packet Core) 203, and an IP service 204 of an operator, which are in communication connection in sequence.

Specifically, the UE201 may be the terminal 100 described above, and is not described herein again.

The E-UTRAN202 includes eNodeB2021 and other eNodeBs 2022, among others. Among them, the eNodeB2021 may be connected with other eNodeB2022 through backhaul (e.g., X2 interface), the eNodeB2021 is connected to the EPC203, and the eNodeB2021 may provide the UE201 access to the EPC 203.

The EPC203 may include an MME (mobility management Entity) 2031, an HSS (Home Subscriber Server) 2032, other MMEs 2033, an SGW (Serving GateWay) 2034, a PGW (PDN GateWay) 2035, and a PCRF (Policy and charging functions Entity) 2036, and the like. The MME2031 is a control node that handles signaling between the UE201 and the EPC203, and provides bearer and connection management. HSS2032 is used to provide registers to manage functions such as home location register (not shown) and holds subscriber specific information about service characteristics, data rates, etc. All user data may be sent through SGW2034, PGW2035 may provide IP address assignment for UE201 and other functions, and PCRF2036 is a policy and charging control policy decision point for traffic data flow and IP bearer resources, which selects and provides available policy and charging control decisions for a policy and charging enforcement function (not shown).

The IP services 204 may include the internet, intranets, IMS (IP Multimedia Subsystem), or other IP services, among others.

Although L TE system is described as an example, it should be understood by those skilled in the art that the present invention is not limited to L TE system, but also applicable to other wireless communication systems, such as GSM, CDMA2000, WCDMA, TD-SCDMA, and future new network systems.

Based on the above mobile terminal hardware structure and communication network system, the present invention provides various embodiments of the method.

Based on the above mobile terminal hardware structure and communication system, the present invention provides various embodiments of the method.

Referring to fig. 3, fig. 3 is a schematic diagram of an embodiment of a method for switching a communication network according to the present invention, including:

301. starting;

302. receiving a measurement event issued by a network;

the terminal is switched to SRVCC usually in L TE area, when L TE signal received by the terminal gradually tends to weak signal, the network also has corresponding detection, and reconfigures the current L TE RRC connection according to the trend, and issues related signal measurement event to report the measurement event;

303. obtaining the appointed threshold value in the GSM signal in the measuring event, and measuring the L TE signal intensity of the current service cell and the GSM signal intensity of the adjacent service cell;

304. judging L TE signal intensity whether smaller than preset threshold, if yes, entering step 305, if not, entering step 306;

the preset threshold value can be set at the terminal;

305. a first measurement report reported to the network, wherein the GSM signal strength in the first measurement report is an actual measurement value;

306. a second measurement report is reported to the network, the GSM signal strength in the second measurement report is a preset strength value, and the preset strength value is smaller than the specified threshold value;

307. and (6) ending.

In this embodiment, if the L TE signal strength of the current cell is measured to be equal to or greater than the preset threshold, the second measurement report is reported, the GSM signal strength is changed to the preset strength value slightly smaller than the specified threshold, until the measured L TE signal strength is lower than the preset threshold, the first measurement report reported to the network restores the GSM signal strength to the actual measurement value, and the network determines whether to handover the SRVCC.

Referring to fig. 4, fig. 4 is a schematic diagram of another embodiment of a method for switching a communication network according to the present invention, including:

401. starting;

402. receiving a measurement event issued by a network;

403. determining whether the measurement event is a B1 event; if yes, go to step 404; if not, go to step 408;

404. obtaining the appointed threshold value in the GSM signal in the measuring event, and measuring the L TE signal intensity of the current service cell and the GSM signal intensity of the adjacent service cell;

405. judging whether the TE signal intensity of L is smaller than a preset threshold value, if so, entering a step 406, otherwise, entering a step 407;

the preset threshold value can be set at the terminal;

406. a first measurement report reported to the network, wherein the GSM signal strength in the first measurement report is an actual measurement value;

407. a second measurement report is reported to the network, the GSM signal strength in the second measurement report is a preset strength value, and the preset strength value is smaller than the specified threshold value;

408. and (6) ending.

It should be noted that, there are many irregular places in the current L TE network construction, including some places, the cells will use the B1 event to guide the terminal to perform SRVCC handover, the content of the measurement event is that only the GSM signal strength of the surrounding neighbors is detected and meets the given threshold, the report triggers the B1 event report, and then the network issues the handover command to perform SRVCC handover to the terminal.

The embodiment provides a solution to the above problem, and specifically, when the terminal receives a B1 event and still needs to measure the L TE signal strength of the current cell and the GSM cell signal strength of the surrounding neighboring cells at the same time, but in the reported measurement report, the GSM signal strength is changed to be slightly smaller than the specified threshold, until the measured L TE signal strength is lower than the preset threshold, the GSM signal strength is restored to the actual measurement value and reported to the network together, and the network determines whether to perform SRVCC handover.

Referring to fig. 5, fig. 5 is a schematic diagram of another embodiment of a method for switching a communication network according to the present invention, including:

501. starting;

502. receiving a measurement event issued by a network;

503. determining whether the measurement event is a B1 event; if yes, go to step 504; if not, go to step 508;

504. obtaining the appointed threshold value in the GSM signal in the measuring event, and measuring the L TE signal intensity of the current service cell and the GSM signal intensity of the adjacent service cell;

505. judging whether the TE signal strength of L is smaller than a preset threshold value, if so, entering a step 506, and if not, entering a step 507;

the preset threshold value can be set at the terminal;

506. a first measurement report reported to the network, wherein the GSM signal strength in the first measurement report is an actual measurement value;

507. a second measurement report is reported to the network, the GSM signal strength in the second measurement report is a preset strength value, and the preset strength value is smaller than the specified threshold value;

508. determining whether the measurement event is a B2 event; if yes, go to step 509; if not, go to step 510;

509. a first measurement report reported to the network, wherein the GSM signal strength in the first measurement report is an actual measurement value;

510. and (6) ending.

In this embodiment, if the measurement event is a B1 event, L TE signal strength of the current cell and GSM cell signal strength of surrounding neighbors are measured simultaneously, but the first measurement report is reported, the GSM signal strength is changed to be slightly smaller than a specified threshold, and when the measured L TE signal strength is smaller than a preset threshold, the second measurement report is reported, the GSM signal strength is restored to an actual measurement value, and the network determines whether to perform SRVCC handover.

If the configuration message is a B2 configuration message, the first measurement report is directly sent, because the B2 event indicates that when the terminal detects that the L TE signal strength of the serving cell is lower than a certain threshold and the GSM signal strength of the surrounding neighboring cells is higher than a certain threshold, the terminal will report the signal measurement report to the network, and the network sends a handover Command From EUTRA Command message to the terminal according to the reported measurement result, so that the terminal starts SRVCC handover.

Optionally, on the basis of any optional embodiment corresponding to fig. 1 to fig. 3, in another optional embodiment of the method for switching a communication network according to the embodiment of the present invention, the L TE signal strength in the first measurement report is an actual measurement value, and after the first measurement report is reported to the network, as shown in fig. 6, the method further includes the steps of:

601. starting;

602. judging whether the L TE signal strength in the first measurement report is smaller than a preset threshold value, if so, entering a step 603, and if not, entering a step 607;

generally, if the measurement event is a B1 event, the preset threshold may be set by the terminal itself, if the measurement event is a B2 event, the given threshold of the L TE signal in the B2 event may be obtained, and the value of the preset threshold is made equal to the value of the given threshold;

603. judging whether the GSM signal strength in the first measurement report is greater than the specified threshold value; if yes, go to step 604; if not, go to step 607;

604. detecting whether a switching instruction sent by the network is received within a preset time; if yes, go to step 605; if not, go to step 606;

in specific implementation, whether the preset time is within the preset time can be judged through a timer or a timer;

605. stopping timing operation of preset time;

that is, the timer or timer is cancelled, and at this time, the switching operation can be executed according to the switching instruction issued by the network;

606. sending a routing area update request to the network;

607. and (6) ending.

In this embodiment, if the L TE signal strength in the first measurement report is less than the preset threshold and the GSM signal strength is greater than the specified threshold, when the terminal reports the first measurement report to the network, a timer or timer is started, a handover command issued by the network is received within the preset time set by the timer or timer, the timer or timer is cancelled, and the handover operation is continued, and if the handover command issued by the network is not received within the preset time, a routing Area update rau (route Area update) request is sent to the network in time, and the network is required to reconfigure radio resource control connection (rrc control) so as to initialize the handover operation step, thereby further reducing the situation that the handover command is not issued due to network abnormality.

The embodiment can prevent the situation that the terminal cannot perform the SRVCC handover due to the fact that the measurement result reported by the terminal meets the threshold value but the instruction is not issued in time after receiving the measurement result due to the network abnormality, and avoid the situation that the current call is forced to hang up due to the fact that the L TE signal is too weak to support the current call as the terminal moves continuously all the time under the L TE weak signal, which causes troubles to users.

The above describes a method for switching a communication network in the embodiment of the present invention, and a mobile terminal in the embodiment of the present invention is described below.

As shown in fig. 7, an embodiment of a mobile terminal in the embodiment of the present invention includes:

a receiving unit 701, configured to receive a measurement event sent by a network;

an obtaining unit 702, configured to obtain a specified threshold in a GSM signal in the measurement event;

a measuring unit 703, configured to measure L TE signal strength of the current serving cell and GSM signal strength of the neighboring serving cell;

l TE determination unit 704, configured to determine whether the L TE signal strength is smaller than a preset threshold, where the preset threshold may be set at the terminal itself;

a measurement report reporting unit 705, configured to report a first measurement report to the network if the L TE signal strength is smaller than a preset threshold, where a GSM signal strength in the first measurement report is an actual measurement value;

the measurement report reporting unit 705 is further configured to report a second measurement report to the network if the L TE signal strength is not less than a preset threshold, where a GSM signal strength in the second measurement report is a preset strength value, and the preset strength value is less than the specified threshold.

As shown in fig. 8, another embodiment of the mobile terminal in the embodiment of the present invention includes:

a receiving unit 801, configured to receive a measurement event sent by a network;

an information determining unit 802, configured to determine whether the measurement event is a B1 event.

An obtaining unit 803, configured to obtain a specified threshold in the GSM signal in the measurement event, specifically, the specified threshold in the GSM signal in the B1 event;

a measuring unit 804, configured to measure L TE signal strength of the current serving cell and GSM signal strength of the neighboring serving cell;

l TE judgment unit 805 for judging whether the L TE signal strength is less than a preset threshold value, wherein the preset threshold value can be set at the terminal itself;

a measurement report reporting unit 806, configured to report a first measurement report to the network if the L TE signal strength is smaller than a preset threshold, where a GSM signal strength in the first measurement report is an actual measurement value;

the measurement report reporting unit 806 is further configured to report a second measurement report to the network if the L TE signal strength is not less than a preset threshold, where a GSM signal strength in the second measurement report is a preset strength value, and the preset strength value is less than the specified threshold.

The embodiment provides a solution to the above problem, and specifically, when the terminal still needs the measurement unit to simultaneously measure the L TE signal strength of the current cell and the GSM cell signal strength of the neighboring cells when receiving the B1 event, but in the measurement report reported by the measurement report reporting unit, the GSM signal strength is changed to be slightly smaller than the specified threshold, until the measured L TE signal strength is lower than the preset threshold, the GSM signal strength is restored to the actual measurement value and reported to the network together, and the network determines whether to perform the SRVCC handover.

Optionally, on the basis of the embodiment corresponding to fig. 8, another optional embodiment of the mobile terminal provided in the embodiment of the present invention includes:

the information determining unit 802 is further configured to determine whether the measurement event is a B2 event, in addition to determining whether the measurement event is a B1 event.

More specifically, if the information determining unit 802 determines that the measurement event is a B1 event, the obtaining unit 803 obtains a specified threshold in a GSM signal in the B1 event, the measuring unit 804 still needs to measure L TE signal strength of the current serving cell and GSM signal strength of an adjacent serving cell, the L TE determining unit 805 determines whether the L TE signal strength is smaller than a preset threshold, if the L TE signal strength is smaller than the preset threshold, the measurement report reporting unit 806 reports a first measurement report to the network, where the GSM signal strength in the first measurement report is an actual measurement value, and if the L TE signal strength is not smaller than the preset threshold, the measurement report reporting unit 806 reports a second measurement report to the network, where the GSM signal strength in the second measurement report is a preset strength value, and the preset strength value is smaller than the specified threshold.

If the information determining unit 802 determines that the measurement event is a B2 event, the measuring unit 804 measures the L TE signal strength of the current serving cell and the GSM signal strength of the neighboring serving cell, and the measurement report reporting unit 806 reports a first measurement report to the network, where the GSM signal strength in the first measurement report is an actual measurement value;

As shown in fig. 9, another embodiment of the mobile terminal in the embodiment of the present invention includes:

a receiving unit 901, configured to receive a measurement event sent by a network;

the terminal is normally switched to SRVCC in L TE area, when L TE signal received by the terminal gradually tends to weak signal, the network also has corresponding detection, and reconfigures the current L TE RRC connection according to the trend, and issues related signal measurement event to report the measurement event;

an obtaining unit 902, configured to obtain a specified threshold in a GSM signal in the measurement event;

a measuring unit 903, configured to measure L TE signal strength of the current serving cell and GSM signal strength of the neighboring serving cell;

l TE judgment unit 904, for judging whether the L TE signal strength is smaller than a preset threshold value, wherein the preset threshold value can be set at the terminal itself;

a measurement report reporting unit 905, configured to report a first measurement report to the network if the L TE signal strength is smaller than a preset threshold, where a GSM signal strength in the first measurement report is an actual measurement value;

the measurement report reporting unit 905 is further configured to report a second measurement report to the network if the L TE signal strength is not less than a preset threshold, where a GSM signal strength in the second measurement report is a preset strength value, and the preset strength value is less than the specified threshold;

a report judging unit 906, configured to judge whether the L TE signal strength in the first measurement report is smaller than a preset threshold, if so, judge whether the GSM signal strength in the first measurement report is larger than the specified threshold, generally, if the measurement event is a B1 event, the preset threshold may be set by the terminal itself, if the measurement event is a B2 event, the given threshold of the L TE signal in the B2 event may be obtained, so that the value of the preset threshold is equal to the value of the given threshold, of course, in another embodiment of the present invention, it may be determined in advance whether the value of the preset threshold is larger than the value of the given threshold, if so, the size of the preset threshold is not changed, and if not, the value of the preset threshold is equal to the value of the given threshold;

a detecting unit 907, configured to detect whether a handover instruction issued by the network is received within a preset time; in a specific implementation, the detecting unit 907 may determine whether the time is within the preset time through a timer or a timer.

A requesting unit 908, configured to send a routing area update request to the network if the switching instruction sent by the network is not received within the preset time.

Optionally, on the basis of the embodiment corresponding to fig. 9, the mobile terminal according to the embodiment of the present invention may further include an information determining unit, configured to determine whether the measurement event is a B1 event, if the result determined by the information determining unit is that the current measurement event is a B1 event, the obtaining unit obtains a specified threshold in a GSM signal in the B1 event, the measuring unit measures L TE signal strength of the current serving cell and GSM signal strength of an adjacent serving cell, the L TE determining unit determines whether the L TE signal strength is smaller than a preset threshold, the measurement report reporting unit uploads a first measurement report or a second measurement report according to the determination result of the L TE determining unit, and if the result determined by the information determining unit is that the current measurement event is not a B1 event, the measurement report unit may directly upload the first measurement report.

In another embodiment of the present invention, the information determining unit is further configured to determine whether the measurement event is a B2 event, in addition to determining whether the measurement event is a B1 event.

If the information determining unit 802 determines that the measurement event is a B2 event, the measuring unit 804 measures the L TE signal strength of the current serving cell and the GSM signal strength of the neighboring serving cell, and the measurement report reporting unit 806 reports a first measurement report to the network, where the GSM signal strength in the first measurement report is an actual measurement value.

The embodiment of the invention provides a method for switching a communication network and a mobile terminal, which determine whether the GSM signal strength is changed into a preset strength value slightly smaller than a specified threshold value in a reported measurement report according to the L TE signal strength so as to accord with the conventional SRVCC switching condition, ensure that the switching of the terminal is not frequent any more and meet the configuration requirements issued by the network, and subsequently change the configuration or even cancel the configuration at any time according to the network construction condition, so that the terminal can normally perform the SRVCC switching under most network conditions, further ensure the use experience of users and improve the product competitiveness.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A method for switching communication network is applied to a mobile terminal, and is characterized by comprising the following steps:

receiving a measurement event sent by a network when detecting that an L TE signal received by a terminal gradually tends to a weak signal;

judging whether the measurement event is a B1 event, wherein the content of the B1 event is as follows: only detecting the GSM signal intensity of surrounding neighbors and meeting a given threshold;

if yes, obtaining the specified threshold value in the GSM signal in the measurement event, and measuring the L TE signal intensity of the current service cell and the GSM signal intensity of the adjacent service cell;

if not, reporting a second measurement report to the network, wherein the GSM signal strength in the second measurement report is a preset strength value, and the preset strength value is smaller than the specified threshold value.

2. The method of switching communication networks according to claim 1, wherein after said determining whether said measurement event is a B1 event, said method further comprises the steps of:

and if so, executing the step of reporting the first measurement report to the network.

3. The method of switching communication networks according to claim 1 or 2, wherein the L TE signal strength in the first measurement report is an actual measurement value, and after the first measurement report reported to the network, the method further comprises the steps of:

if not, sending a routing area updating request to the network.

4. The method of claim 3, wherein the predetermined time is determined by a timer or a timer.

5. A mobile terminal, comprising:

the receiving unit is used for receiving a measurement event issued by the network when detecting that the L TE signal received by the terminal gradually tends to a weak signal;

an information determining unit, configured to determine whether the measurement event is a B1 event, where the content of the B1 event is: only detecting the GSM signal intensity of surrounding neighbors and meeting a given threshold;

an obtaining unit, configured to obtain a specified threshold in a GSM signal in the measurement event if the measurement event is a B1 event;

6. The mobile terminal according to claim 5, wherein the information determining unit is further configured to determine whether the measurement event is a B2 event.

7. The mobile terminal according to claim 5 or 6, further comprising:

8. The mobile terminal of claim 7, wherein the detecting unit is configured to determine whether the time is within the preset time by using a timer or a timer.