CN112637158B - Call network regulation and control method, device and computer readable storage medium - Google Patents
Call network regulation and control method, device and computer readable storage medium Download PDFInfo
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- 230000033228 biological regulation Effects 0.000 title claims abstract description 35
- 230000000977 initiatory effect Effects 0.000 claims description 17
- 230000001105 regulatory effect Effects 0.000 claims description 10
- 238000012544 monitoring process Methods 0.000 claims description 9
- 230000001276 controlling effect Effects 0.000 claims description 7
- 238000004590 computer program Methods 0.000 claims description 6
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- 230000006854 communication Effects 0.000 description 12
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- 238000010295 mobile communication Methods 0.000 description 5
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/10—Architectures or entities
- H04L65/1016—IP multimedia subsystem [IMS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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Abstract
The invention discloses a call network regulation and control method, equipment and a computer readable storage medium, wherein the method comprises the following steps: when a calling terminal initiates a network call of a multimedia subsystem and the network call is in a call waiting state, if the calling terminal is monitored to be switched from a data domain cell to a circuit domain cell, the calling terminal initiates a circuit domain call corresponding to the network call to a called terminal through the circuit domain cell; if the network call with the same calling number as the circuit domain call is detected, releasing resources and flows corresponding to the network call; and establishing a call flow between the calling terminal and the called terminal according to the circuit domain call. The call network regulation and control scheme with higher call success rate is realized, the occurrence of the condition that a calling end or a called end fails in the network switching process is avoided, the adaptability of IMS network call is improved, and the call experience of the calling end and the called end is enhanced.
Description
Technical Field
The present invention relates to the field of mobile communications, and in particular, to a call network regulation method, a call network regulation device, and a computer readable storage medium.
Background
In the prior art, with the continuous development of intelligent terminal equipment and network technology, a user can realize clearer conversation experience through a network with a higher version. For example, in 5G and 4G networks, if a terminal supports IMS (multimedia subsystem) and registers with IMS, a call (VT) of the terminal is performed on the IMS network. However, before entering a call (called party is answering), the caller, the called party, or both the caller and the called party switch to a network that does not support IMS, referred to herein as a CS network (such as WCDMA, GSM, TD _scdma, CDMA-1X network), a call failure occurs, which specifically includes the following two cases:
firstly, when the called party is switched to the CS network, the signaling in the subsequent calling process can not be received, and the call flow can not be continued, so that failure is caused;
secondly, the calling party is switched to the CS network, and cannot receive subsequent signaling, so that the call fails, for example, the called party receives the call and enters a call state, but the calling party cannot receive the answering signaling and is still in the call state.
Therefore, a technical solution for solving the problem of call failure at the calling end or the called end in the network switching process is needed in the prior art.
Disclosure of Invention
In order to solve the technical defects in the prior art, the invention provides a call network regulation and control method, which comprises the following steps:
when a calling terminal initiates a network call of a multimedia subsystem and the network call is in a call waiting state, if the calling terminal is monitored to be switched from a data domain cell to a circuit domain cell, the calling terminal initiates a circuit domain call corresponding to the network call to a called terminal through the circuit domain cell;
the circuit domain call is sent to the multimedia subsystem network of the called end through a core network;
in the multimedia subsystem network of the called end, if the network call with the same calling number as the circuit domain call is detected, releasing the resources and the flow corresponding to the network call;
and establishing a call flow between the calling terminal and the called terminal according to the circuit domain call.
Optionally, when the calling terminal initiates a network call of the multimedia subsystem and the network call is in a call waiting state, if it is monitored that the calling terminal is switched from a data domain cell to a circuit domain cell, the calling terminal initiates a circuit domain call corresponding to the network call to a called terminal through the circuit domain cell, including:
Detecting a network where the calling terminal is located when a call is initiated;
and if the network supports the multimedia subsystem, controlling the calling terminal to initiate the network call to the called terminal.
Optionally, when the calling terminal initiates a network call of the multimedia subsystem and the network call is in a call waiting state, if it is monitored that the calling terminal is switched from a data domain cell to a circuit domain cell, the calling terminal initiates a circuit domain call corresponding to the network call to a called terminal through the circuit domain cell, and the method further includes:
when the network call is in the call waiting state, monitoring the network state of the calling terminal;
and when the network state is switched from the data network to the circuit network, detecting whether the cell currently searched by the calling terminal is in a previously registered location area.
Optionally, when the calling terminal initiates a network call of the multimedia subsystem and the network call is in a call waiting state, if it is monitored that the calling terminal is switched from a data domain cell to a circuit domain cell, the calling terminal initiates a circuit domain call corresponding to the network call to a called terminal through the circuit domain cell, and the method further includes:
If the cell searched currently is not in the position area registered previously, initiating a position update request to the circuit network;
and if the registration of the circuit network is completed according to the position updating request, initiating the circuit domain call to a called end in the network call through the circuit network.
The invention also provides a call network regulation and control method, which comprises the following steps:
when a called terminal receives a network call sent by a calling terminal and the network call is in a call waiting state, monitoring the network state of the called terminal;
if the network state is switched from the data network to the circuit network, determining a cell currently searched by the called terminal;
sending a position updating request to the cell through the called terminal, and adding a preset call waiting identifier in the position updating request;
when the core network receives the call waiting identification forwarded by the cell, determining whether the calling terminal corresponding to the call waiting identification is in a call waiting state, and if the core network detects that the calling terminal is in the call waiting state, initiating a circuit domain call to the called terminal.
Optionally, when the called end receives a network call sent by the calling end and the network call is in a call waiting state, monitoring the network state of the called end includes:
detecting a network where the called terminal is located when receiving a call;
and if the network supports the multimedia subsystem, controlling the called terminal to receive the network call.
Optionally, when the core network receives the call waiting identifier forwarded by the cell, determining whether the calling end corresponding to the call waiting identifier is in a call waiting state, and if the core network detects that the calling end is in the call waiting state, initiating a circuit domain call to the called end, including:
when the core network receives the call waiting identification, determining the called end corresponding to the call waiting identification;
and determining the calling terminal currently corresponding to the called terminal, and detecting whether the calling terminal is in the call waiting state.
Optionally, when the core network receives the call waiting identifier forwarded by the cell, determining whether the calling end corresponding to the call waiting identifier is in a call waiting state, if the core network detects that the calling end is in the call waiting state, initiating a circuit domain call to the called end, and further including:
If the calling terminal is detected to be in the call waiting state, releasing resources and processes corresponding to the network call, and initiating the circuit domain call to the called terminal;
and establishing a call flow between the calling terminal and the called terminal according to the circuit domain call.
The invention also proposes a call network regulating device comprising a memory, a processor and a computer program stored on said memory and executable on said processor, said computer program implementing the steps of the call network regulating method as defined in any one of the above when executed by said processor.
The invention also provides a computer readable storage medium, on which a call network regulating program is stored, which when executed by a processor implements the steps of the call network regulating method as described in any one of the above.
When a calling terminal initiates a network call of a multimedia subsystem and the network call is in a call waiting state, if the calling terminal is monitored to be switched from a data domain cell to a circuit domain cell, the calling terminal initiates a circuit domain call corresponding to the network call to a called terminal through the circuit domain cell; the circuit domain call is sent to the multimedia subsystem network of the called end through a core network; in the multimedia subsystem network of the called end, if the network call with the same calling number as the circuit domain call is detected, releasing the resources and the flow corresponding to the network call; and establishing a call flow between the calling terminal and the called terminal according to the circuit domain call. The call network regulation and control scheme with higher call success rate is realized, the occurrence of the condition that a calling end or a called end fails in the network switching process is avoided, the adaptability of IMS network call is improved, and the call experience of the calling end and the called end is enhanced.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
fig. 1 is a schematic diagram of a hardware structure of a mobile terminal according to the present invention;
fig. 2 is a schematic diagram of a communication network system according to an embodiment of the present invention;
FIG. 3 is a flow chart of a first embodiment of the call network regulation method of the present invention;
FIG. 4 is a flow chart of a second embodiment of the call network throttling method of the present invention;
FIG. 5 is a flow chart of a third embodiment of the call network throttling method of the present invention;
FIG. 6 is a flow chart of a fourth embodiment of the call network throttling method of the present invention;
FIG. 7 is a flowchart of a fifth embodiment of the call network throttling method of the present invention;
FIG. 8 is a flowchart of a sixth embodiment of the call network policing method of the present invention;
FIG. 9 is a flowchart of a seventh embodiment of the call network throttling method of the present invention;
FIG. 10 is a flowchart of an eighth embodiment of the call network throttling method of the present invention;
fig. 11 is a simplified diagram of a first embodiment of a call network control method according to the present invention.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
In the following description, suffixes such as "module", "component", or "unit" for representing elements are used only for facilitating the description of the present invention, and have no specific meaning per se. Thus, "module," "component," or "unit" may be used in combination.
The terminal may be implemented in various forms. For example, the terminals described in the present invention may include mobile terminals such as cell phones, tablet computers, notebook computers, palm computers, personal digital assistants (Personal Digital Assistant, PDA), portable media players (Portable Media Player, PMP), navigation devices, wearable devices, smart bracelets, pedometers, and fixed terminals such as digital TVs, desktop computers, and the like.
The following description will be given taking a mobile terminal as an example, and those skilled in the art will understand that the configuration according to the embodiment of the present invention can be applied to a fixed type terminal in addition to elements particularly used for a moving purpose.
Referring to fig. 1, which is a schematic diagram of a hardware structure of a mobile terminal implementing various embodiments of the present invention, the mobile terminal 100 may include: an RF (Radio Frequency) unit 101, a WiFi module 102, an audio output unit 103, an a/V (audio/video) input unit 104, a sensor 105, a display unit 106, a user input unit 107, an interface unit 108, a memory 109, a processor 110, and a power supply 111. Those skilled in the art will appreciate that the mobile terminal structure shown in fig. 1 is not limiting of the mobile terminal and that the mobile terminal may include more or fewer components than shown, or may combine certain components, or a different arrangement of components.
The following describes the components of the mobile terminal in detail with reference to fig. 1:
the radio frequency unit 101 may be used for receiving and transmitting signals during the information receiving or communication process, specifically, after receiving downlink information of the base station, processing the downlink information by the processor 110; and, the uplink data is transmitted to the base station. Typically, 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. In addition, the radio frequency unit 101 may also communicate with networks and other devices via wireless communications. The wireless communication may use any communication standard or protocol, including but not limited to GSM (Global System of Mobile communication, global System for Mobile communications), GPRS (General Packet Radio Service ), CDMA2000 (Code Division Multiple Access, CDMA 2000), WCDMA (Wideband Code Division Multiple Access ), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access, time Division synchronous code Division multiple Access), FDD-LTE (Frequency Division Duplexing-Long Term Evolution, frequency Division Duplex Long term evolution), and TDD-LTE (Time Division Duplexing-Long Term Evolution, time Division Duplex Long term evolution), etc.
WiFi belongs to a short-distance wireless transmission technology, and a mobile terminal can help a user to send and receive e-mails, browse web pages, access streaming media and the like through the WiFi module 102, so that wireless broadband Internet access is provided for the user. Although fig. 1 shows a WiFi module 102, it is understood that it does not belong to the necessary constitution of a mobile terminal, and can be omitted entirely as required within a range that does not change 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 talk 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 (e.g., a call signal reception sound, a message reception sound, etc.) related to a specific function performed by the mobile terminal 100. The audio output unit 103 may include a speaker, a buzzer, and the like.
The a/V input unit 104 is used to receive an audio or video signal. The a/V input unit 104 may include a graphics processor (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 graphics 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 can receive sound (audio data) via the microphone 1042 in a phone call mode, a recording mode, a voice recognition mode, and the like, and can process such sound into audio data. The processed audio (voice) data may be converted into a format output that can be transmitted to the mobile communication base station via the radio frequency unit 101 in the case of a telephone 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 the audio signal.
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 and a proximity sensor, wherein the ambient light sensor can adjust the brightness of the display panel 1061 according to the brightness of ambient light, and the proximity sensor can turn off the display panel 1061 and/or the backlight when the mobile terminal 100 moves to the ear. As one of the motion sensors, the accelerometer sensor can detect the acceleration in all directions (generally three axes), and can detect the gravity and direction when stationary, and can be used for applications of recognizing the gesture of a mobile phone (such as horizontal and vertical screen switching, related games, magnetometer gesture calibration), vibration recognition related functions (such as pedometer and knocking), and the like; as for other sensors such as fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc. that may also be configured in the mobile phone, the detailed description thereof will be omitted.
The display unit 106 is used to display information input by a user or information provided to the user. 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 (Liquid Crystal Display, LCD), an Organic Light-Emitting Diode (OLED), or the like.
The user input unit 107 may be used to receive input numeric or character information and to generate key signal inputs related to user settings and function control of the mobile terminal. In particular, 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 touch operations thereon or thereabout by a user (e.g., operations of the user on the touch panel 1071 or thereabout by using any suitable object or accessory such as a finger, a stylus, etc.) and drive the 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 azimuth 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 detection device, converts it into touch point coordinates, and sends the touch point coordinates to the processor 110, and can receive and execute commands sent from the processor 110. Further, the touch panel 1071 may be implemented in various types such as resistive, capacitive, infrared, and surface acoustic wave. The user input unit 107 may include other input devices 1072 in addition to the touch panel 1071. 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, mouse, joystick, etc., as specifically not limited herein.
Further, the touch panel 1071 may overlay the display panel 1061, and when the touch panel 1071 detects a touch operation thereon or thereabout, the touch panel 1071 is transferred to the processor 110 to determine the type of touch event, and then the processor 110 provides a corresponding visual output on the display panel 1061 according to the type of touch event. Although in fig. 1, the touch panel 1071 and the display panel 1061 are two independent components for implementing the input and output functions of the mobile terminal, in some embodiments, the touch panel 1071 may be integrated with the display panel 1061 to implement the input and output functions of the mobile terminal, which is not limited herein.
The interface unit 108 serves as an interface through which at least one external device can be connected with the mobile terminal 100. For example, the external devices may include a wired or wireless headset port, an external power (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 an external device 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 an external device.
Memory 109 may be used to store software programs as well as various data. The memory 109 may mainly include a storage program area that may store an operating system, application programs required for at least one function (such as a sound playing function, an image playing function, etc.), and a storage data area; the storage data area may store data (such as audio data, phonebook, etc.) created according to the use of the handset, etc. In addition, 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 running 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 that primarily handles operating systems, user interfaces, applications, etc., with a modem processor that primarily 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 source 111 (e.g., a battery) for supplying power to the respective components, and preferably, the power source 111 may be logically connected to the processor 110 through a power management system, so as to perform functions of managing charging, discharging, and power consumption management through 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 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 will be described below.
Referring to fig. 2, fig. 2 is a schematic diagram of a communication network system according to an embodiment of the present invention, where the communication network system is an LTE system of a general mobile communication technology, and the LTE system includes a UE (User Equipment) 201, an e-UTRAN (Evolved UMTS Terrestrial Radio Access Network ) 202, an epc (Evolved Packet Core, evolved packet core) 203, and an IP service 204 of an operator that are sequentially connected in communication.
Specifically, the UE201 may be the terminal 100 described above, and will not be described herein.
The E-UTRAN202 includes eNodeB2021 and other eNodeB2022, etc. The eNodeB2021 may be connected with other eNodeB2022 by a backhaul (e.g., an X2 interface), the eNodeB2021 is connected to the EPC203, and the eNodeB2021 may provide access from the UE201 to the EPC 203.
EPC203 may include MME (Mobility Management Entity ) 2031, hss (Home Subscriber Server, home subscriber server) 2032, other MMEs 2033, SGW (Serving Gate Way) 2034, pgw (PDN Gate Way) 2035 and PCRF (Policy and Charging Rules Function, policy and tariff function entity) 2036, and so on. The MME2031 is a control node that handles signaling between the UE201 and EPC203, providing bearer and connection management. HSS2032 is used to provide registers to manage functions such as home location registers (not shown) and to hold user specific information about service characteristics, data rates, etc. All user data may be sent through SGW2034 and PGW2035 may provide IP address allocation and other functions for UE201, PCRF2036 is a policy and charging control policy decision point for traffic data flows and IP bearer resources, which selects and provides available policy and charging control decisions for a policy and charging enforcement function (not shown).
IP services 204 may include the internet, intranets, IMS (IP Multimedia Subsystem ), or other IP services, etc.
Although the LTE system is described above as an example, it should be understood by those skilled in the art that the present invention is not limited to LTE systems, but may be applied 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 the communication network system, various embodiments of the method of the present invention are provided.
Example 1
Fig. 3 is a flowchart of a first embodiment of the call network regulation method of the present invention. A call network regulation method, the method comprising:
s1, when a calling terminal initiates a network call of a multimedia subsystem and the network call is in a call waiting state, if the calling terminal is monitored to be switched from a data domain cell to a circuit domain cell, the calling terminal initiates a circuit domain call corresponding to the network call to a called terminal through the circuit domain cell;
s2, sending the circuit domain call to the multimedia subsystem network of the called terminal through a core network;
s3, in the multimedia subsystem network of the called end, if the network call with the same calling number as the circuit domain call is detected, releasing the resources and the flow corresponding to the network call;
S4, establishing a call flow between the calling end and the called end according to the circuit domain call.
Optionally, in this embodiment, in order to more clearly illustrate the call processing principle and flow of this embodiment, the existing network architecture of the 2G, 3G, 4G and 5G networks is simplified and illustrated, specifically, refer to the network simplified diagram of the whole architecture shown in fig. 11, where the core networks corresponding to the 2G, 3G, 4G and 5G networks are simplified to one core network as an illustration, so as to obtain the call flow between the calling end (MO terminal) and the called end (MT terminal);
optionally, in this embodiment, when the calling terminal initiates an IMS call in the 4G or 5G network, determining a current call state, if the calling terminal has not entered the call state, that is, if the calling terminal has not received the called answer signaling, if the calling terminal is switched to the CS network (e.g., the 2G network or the 3G network) by the network, after the calling terminal searches for a new cell, if the new cell is not in a previously registered location area, the calling terminal initiates a location update request Location Update Request to the network;
optionally, in this embodiment, after the new cell registration is completed, the calling terminal re-initiates the call to the called terminal (i.e., calls the original called terminal); if the new cell does not need to be registered, after the calling terminal searches the network of the new cell, the calling terminal directly re-initiates the call to the original called terminal through the new cell;
Optionally, in this embodiment, when the calling terminal re-initiates a call to the called terminal, when the call reaches a core network where the called terminal is located, the core network performs call processing, where if it is detected that the called terminal supports IMS, the call is sent to a corresponding IMS network;
optionally, in this embodiment, in an IMS network corresponding to a called terminal, if it is detected that the original called terminal is still in a previous call process, where the original called terminal may be judged to be the same as the previous call process according to the calling number, it is determined that the called terminal is still in the previous call process, and at this time, the resources and procedures of the original IMS source, that is, the call sent from the IMS network, are released, and at the same time, a new call procedure is completed with a new calling terminal.
The beneficial effects of the embodiment are that when the calling terminal initiates the network call of the multimedia subsystem and the network call is in a call waiting state, if the calling terminal is monitored to be switched from a data domain cell to a circuit domain cell, the calling terminal initiates the circuit domain call corresponding to the network call to the called terminal through the circuit domain cell; the circuit domain call is sent to the multimedia subsystem network of the called end through a core network; in the multimedia subsystem network of the called end, if the network call with the same calling number as the circuit domain call is detected, releasing the resources and the flow corresponding to the network call; and establishing a call flow between the calling terminal and the called terminal according to the circuit domain call. The call network regulation and control scheme with higher call success rate is realized, the occurrence of the condition that a calling end or a called end fails in the network switching process is avoided, the adaptability of IMS network call is improved, and the call experience of the calling end and the called end is enhanced.
Example two
Fig. 4 is a flowchart of a second embodiment of a call network regulation method according to the present invention, based on the above embodiment, when a calling terminal initiates a network call of a multimedia subsystem and the network call is in a call waiting state, if it is monitored that the calling terminal is switched from a data domain cell to a circuit domain cell, the calling terminal initiates a circuit domain call corresponding to the network call to a called terminal through the circuit domain cell, including:
s11, detecting a network where the calling terminal is located when a call is initiated;
and S12, if the network supports the multimedia subsystem, controlling the calling terminal to initiate the network call to the called terminal.
Optionally, in this embodiment, a network where the calling end is located when the call is initiated is detected, for example, the calling end is located in any one of 2G, 3G, 4G or 5G networks;
optionally, in this embodiment, when the calling end initiates a call, a network where a SIM card for initiating the call is located is detected, for example, a first SIM card of the calling end initiates a call, and it is determined that the first SIM card is located in any one of 2G, 3G, 4G or 5G networks;
optionally, in this embodiment, if the network supports the multimedia subsystem, the calling terminal is controlled to initiate the network call to the called terminal, where if the network where the current SIM is located does not support the network call of the multimedia subsystem, whether other SIMs are supported is detected, and when the other SIMs are supported, an optional call path is provided to the user.
The beneficial effects of the embodiment are that by detecting the network where the calling terminal is located when the calling terminal initiates the call; and if the network supports the multimedia subsystem, controlling the calling terminal to initiate the network call to the called terminal. The call network regulation scheme provides a call selection basis for realizing a call network regulation scheme with higher call success rate, avoids the occurrence of call failure of a calling terminal or a called terminal in the network switching process, improves the adaptability of IMS network call, and enhances the call experience of the calling terminal and the called terminal.
Example III
Fig. 5 is a flowchart of a third embodiment of a call network regulation method according to the present invention, based on the above embodiment, when a calling terminal initiates a network call of a multimedia subsystem and the network call is in a call waiting state, if it is monitored that the calling terminal is switched from a data domain cell to a circuit domain cell, the calling terminal initiates a circuit domain call corresponding to the network call to a called terminal through the circuit domain cell, and further includes:
s13, when the network call is in the call waiting state, monitoring the network state of the calling terminal;
and S14, when the network state is switched from the data network to the circuit network, detecting whether the cell currently searched by the calling terminal is in a previously registered location area.
Optionally, in this embodiment, when the network state is switched from the data network to the circuit network, detecting whether the cell currently searched by the calling terminal is in a location area registered previously, where the above network switching situation of the calling terminal includes switching from the 4G network to the 2G network or the 3G network, or switching from the 5G network to the 2G network or the 3G network;
optionally, in this embodiment, the above network switching situation of the calling end further includes switching from the 5G network to the 4G network, and continuing to switch from the 4G network to the 2G network or the 3G network;
optionally, in this embodiment, the foregoing network handover situation of the calling end further includes continuing to switch between the 2G network and the 3G network after switching from the 4G network or the 5G network to the 2G network or the 3G network;
optionally, in this embodiment, when the above network handover occurs, it is detected whether the cell currently searched by the calling terminal is in a location area registered previously.
The beneficial effect of the embodiment is that the network state of the calling terminal is monitored when the network call is in the call waiting state; and when the network state is switched from the data network to the circuit network, detecting whether the cell currently searched by the calling terminal is in a previously registered location area. The network switching method provides a pre-positioned judgment basis for network switching for realizing a call network regulation scheme with higher call success rate, avoids the occurrence of call failure of a calling terminal or a called terminal in the network switching process, improves the adaptability of IMS network call and enhances the call experience of the calling terminal and the called terminal.
Example IV
Fig. 6 is a flowchart of a fourth embodiment of a call network regulation method according to the present invention, based on the above embodiment, when a calling terminal initiates a network call of a multimedia subsystem and the network call is in a call waiting state, if it is monitored that the calling terminal is switched from a data domain cell to a circuit domain cell, the calling terminal initiates a circuit domain call corresponding to the network call to a called terminal through the circuit domain cell, and further includes:
s15, if the cell searched currently is not in the previously registered location area, initiating a location update request to the circuit network;
s16, if the registration of the circuit network is completed according to the position updating request, the circuit domain call is initiated to a called end in the network call through the circuit network.
Optionally, in this embodiment, if a new cell needs to be registered, the registration of the circuit network is completed according to the location update request, and then a new circuit domain call is initiated again to a called end in the network call through the circuit network;
optionally, in this embodiment, before a new circuit domain call is initiated to a called end in the network call again through the circuit network, determining a called number in a previous network call;
Optionally, in this embodiment, the new circuit domain call is initiated according to the same called number.
The beneficial effect of the embodiment is that if the current searched cell is not in the position area registered before, a position update request is initiated to the circuit network through identifying; and if the registration of the circuit network is completed according to the position updating request, initiating the circuit domain call to a called end in the network call through the circuit network. The call network regulation scheme with higher call success rate provides a processing basis for calling again, avoids the occurrence of call failure of a calling end or a called end in the network switching process, improves the adaptability of IMS network call, and enhances the call experience of the calling end and the called end.
Example five
Fig. 7 is a flowchart of a fifth embodiment of the call network regulation method according to the present invention, and based on the above embodiment, the present invention further provides a call network regulation method, which includes:
s1', when a called terminal receives a network call sent by a calling terminal and the network call is in a call waiting state, monitoring the network state of the called terminal;
S2', if the network state is switched from the data network to the circuit network, determining a cell currently searched by the called terminal;
s3', sending a position updating request to the cell through the called terminal, and adding a preset call waiting identifier in the position updating request;
s4', when the core network receives the call waiting identification forwarded by the cell, determining whether the calling terminal corresponding to the call waiting identification is in a call waiting state, and if the core network detects that the calling terminal is in the call waiting state, initiating a circuit domain call to the called terminal.
Optionally, in this embodiment, in order to more clearly illustrate the call processing principle and flow of this embodiment, the existing network architecture of the 2G, 3G, 4G and 5G networks is simplified and illustrated, specifically, refer to the network simplified diagram of the whole architecture shown in fig. 11, where the core networks corresponding to the 2G, 3G, 4G and 5G networks are simplified to one core network as an illustration, so as to obtain the call flow between the calling end (MO terminal) and the called end (MT terminal);
optionally, in this embodiment, the called terminal initiates a location update request Location Update Request to the network after searching for a cell by the network being switched to the CS network (2G network or 3G network) during the IMS call, and a call waiting flag (CSMTCALLING flag) is attached to the request;
Optionally, in this embodiment, after the called end completes registration in the new cell, the core network first searches whether the original calling party is still in a call state, if so, resends the call to the called end, and reestablishes the call flow between the called end and the calling end according to the CSMTCALLING flag.
The method has the advantages that when a called terminal receives a network call sent by a calling terminal and the network call is in a call waiting state, the network state of the called terminal is monitored; if the network state is switched from the data network to the circuit network, determining a cell currently searched by the called terminal; sending a position updating request to the cell through the called terminal, and adding a preset call waiting identifier in the position updating request; when the core network receives the call waiting identification forwarded by the cell, determining whether the calling terminal corresponding to the call waiting identification is in a call waiting state, and if the core network detects that the calling terminal is in the call waiting state, initiating a circuit domain call to the called terminal. The call network regulation and control scheme with higher call success rate is realized, the occurrence of the condition that a calling end or a called end fails in the network switching process is avoided, the adaptability of IMS network call is improved, and the call experience of the calling end and the called end is enhanced.
Example six
Fig. 8 is a flowchart of a sixth embodiment of a call network regulation method according to the present invention, based on the above embodiment, where when a called party receives a network call sent by a calling party and the network call is in a call waiting state, monitoring a network state in which the called party is located includes:
s11', detecting the network of the called terminal when receiving a call;
and S12', if the network supports the multimedia subsystem, controlling the called terminal to receive the network call.
Optionally, in this embodiment, a network where the called end is located when the call is initiated is detected, for example, the called end is located in any one of 2G, 3G, 4G or 5G networks;
optionally, in this embodiment, when the called terminal receives the call, it detects a network where the SIM card for receiving the call is located, for example, a first SIM card of the called terminal initiates the call, and determines that the first SIM card is located in any one of the 2G, 3G, 4G, or 5G networks;
optionally, in this embodiment, if the network supports the multimedia subsystem, the calling terminal is controlled to receive the network call to the called terminal, where if the network where the current SIM is located does not support the network call of the multimedia subsystem, whether other SIMs are supported is detected, and when the other SIMs are supported, an optional call path is provided to the user.
The beneficial effects of the embodiment are that by detecting the network where the called terminal is located when receiving the call; and if the network supports the multimedia subsystem, controlling the called terminal to receive the network call. The call network regulation scheme with higher call success rate provides a selection basis for receiving the call, avoids the occurrence of call failure of a calling end or a called end in the network switching process, improves the adaptability of IMS network call, and enhances the call experience of the calling end and the called end.
Example seven
Fig. 9 is a flowchart of a seventh embodiment of a call network regulation method according to the present invention, based on the above embodiment, when a core network receives the call waiting identifier forwarded by the cell, it is determined whether the calling end corresponding to the call waiting identifier is in a call waiting state, and if the core network detects that the calling end is in the call waiting state, a circuit domain call is initiated to the called end, including:
s41', when the core network receives the call waiting identification, determining the called end corresponding to the call waiting identification;
s42', determining the calling terminal currently corresponding to the called terminal, and detecting whether the calling terminal is in the call waiting state.
Optionally, in this embodiment, the network state of the called terminal is switched from the data network to the circuit network, where the above network switching situation of the called terminal includes switching from the 4G network to the 2G network or the 3G network, or switching from the 5G network to the 2G network or the 3G network;
optionally, in this embodiment, the above network switching situation of the called end further includes switching from the 5G network to the 4G network, and continuing to switch from the 4G network to the 2G network or the 3G network;
optionally, in this embodiment, the above network switching situation of the called end further includes switching from the 4G network or the 5G network to the 2G network or the 3G network, and continuing to switch between the 2G network and the 3G network;
optionally, in this embodiment, when the above network handover occurs, the calling terminal currently corresponding to the called terminal is determined, and whether the calling terminal is in the call waiting state is detected.
The beneficial effect of the embodiment is that the called end corresponding to the call waiting identification is determined when the core network receives the call waiting identification; and determining the calling terminal currently corresponding to the called terminal, and detecting whether the calling terminal is in the call waiting state. The network switching processing foundation is provided for realizing a call network regulation scheme with higher call success rate, the occurrence of the condition that a calling end or a called end fails in the network switching process is avoided, the adaptability of IMS network calling is improved, and the calling experience of the calling end and the called end is enhanced.
Example eight
Fig. 10 is a flowchart of an eighth embodiment of a call network regulation method according to the present invention, based on the above embodiment, when a core network receives the call waiting identifier forwarded by the cell, it is determined whether the calling end corresponding to the call waiting identifier is in a call waiting state, and if the core network detects that the calling end is in the call waiting state, a circuit domain call is initiated to the called end, which further includes:
s43', if the calling terminal is detected to be in the call waiting state, releasing resources and processes corresponding to the network call, and initiating the circuit domain call to the called terminal;
s44', establishing the call flow between the calling end and the called end according to the circuit domain call.
Optionally, in this embodiment, if it is detected that the calling end is in the call waiting state, then releasing resources and flows corresponding to the network call, determining an original phone number of the calling end, and then initiating the circuit domain call to the called end according to the phone number;
optionally, in this embodiment, a call flow between the calling end and the called end is established according to the circuit domain call;
Optionally, in this embodiment, a call flow between the core network and the called end is established according to the circuit domain call.
The beneficial effects of the embodiment are that if the calling terminal is detected to be in the call waiting state, the resources and the flow corresponding to the network call are released, and the circuit domain call is initiated to the called terminal; and establishing a call flow between the calling terminal and the called terminal according to the circuit domain call. The method provides a processing scheme of a called terminal side for realizing a calling network regulation scheme with higher calling success rate, avoids the occurrence of calling failure of a calling terminal or a called terminal in the network switching process, improves the adaptability of IMS network calling and enhances the calling experience of the calling terminal and the called terminal.
Example nine
Based on the above embodiments, the present invention also proposes a call network regulating device, which comprises a memory, a processor and a computer program stored on the memory and executable on the processor, the computer program implementing the steps of the call network regulating method as defined in any one of the above when being executed by the processor.
It should be noted that the above device embodiments and method embodiments belong to the same concept, the specific implementation process of the device embodiments is detailed in the method embodiments, and technical features in the method embodiments are correspondingly applicable to the device embodiments, which are not repeated herein.
Examples ten
Based on the above embodiment, the present invention also proposes a computer readable storage medium, on which a call network regulation program is stored, which when executed by a processor implements the steps of the call network regulation method as set forth in any one of the above.
It should be noted that the medium embodiment and the method embodiment belong to the same concept, the specific implementation process of the medium embodiment and the method embodiment are detailed, and technical features in the method embodiment are correspondingly applicable in the medium embodiment, which is not repeated herein.
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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present invention.
The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the claims, which are to be protected by the present invention.
Claims (6)
1. A call network regulation method, the method comprising:
when a called terminal receives a network call sent by a calling terminal and the network call is in a call waiting state, monitoring the network state of the called terminal;
if the network state is switched from the data network to the circuit network, determining a cell currently searched by the called terminal;
sending a position updating request to the cell through the called terminal, and adding a preset call waiting identifier in the position updating request;
when the core network receives the call waiting identification forwarded by the cell, determining whether the calling terminal corresponding to the call waiting identification is in a call waiting state, and if the core network detects that the calling terminal is in the call waiting state, initiating a circuit domain call to the called terminal.
2. The call network regulation method according to claim 1, wherein when the called party receives a network call sent by the calling party and the network call is in a call waiting state, monitoring the network state in which the called party is located includes:
detecting a network where the called terminal is located when receiving a call;
And if the network supports the multimedia subsystem, controlling the called terminal to receive the network call.
3. The call network regulation method according to claim 2, wherein when the core network receives the call waiting identifier forwarded by the cell, determining whether the calling terminal corresponding to the call waiting identifier is in a call waiting state, and if the core network detects that the calling terminal is in the call waiting state, initiating a circuit domain call to the called terminal, includes:
when the core network receives the call waiting identification, determining the called end corresponding to the call waiting identification;
and determining the calling terminal currently corresponding to the called terminal, and detecting whether the calling terminal is in the call waiting state.
4. The call network regulation method according to claim 3, wherein when the core network receives the call waiting identifier forwarded by the cell, determining whether the calling terminal corresponding to the call waiting identifier is in a call waiting state, and if the core network detects that the calling terminal is in the call waiting state, initiating a circuit domain call to the called terminal, further comprising:
If the calling terminal is detected to be in the call waiting state, releasing resources and processes corresponding to the network call, and initiating the circuit domain call to the called terminal;
and establishing a call flow between the calling terminal and the called terminal according to the circuit domain call.
5. Call network regulating device, characterized in that it comprises a memory, a processor and a computer program stored on the memory and executable on the processor, which computer program, when being executed by the processor, implements the steps of the call network regulating method according to any of claims 1 to 4.
6. A computer readable storage medium, characterized in that the computer readable storage medium has stored thereon a call network regulating program, which when executed by a processor, implements the steps of the call network regulating method according to any of claims 1 to 4.
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