CN105959301B - A kind of optimization method of multimedia call and optimization system thereof - Google Patents

Abstract

The invention provides an optimization method and a system for multimedia communication, which are applied to a terminal and comprise the following steps: sending the multimedia call service supported by the current terminal to the current network; acquiring a multimedia call service availability indication sent by the current network; and selecting multimedia communication or common communication according to the incoming call type and the multimedia communication service availability indication. The optimization system comprises: a message field sending unit, configured to send a multimedia call service supported by a current terminal to a current network; a network service availability obtaining unit, configured to obtain a multimedia call service availability indication sent by the current network; and the call network selection unit is used for selecting multimedia call or common call according to the incoming call type and the multimedia call service availability indication. The invention selects the final call mode by combining the call types with the availability of the media call service of the current terminal and the current network, thereby improving the experience of the multimedia call.

Description

A kind of optimization method of multimedia call and optimization system thereof

technical field

The present invention relates to the technical field of communication, in particular to an optimization method and system for multimedia communication.

Background technique

With the continuous coverage of LTE network, more and more people begin to use VOLTE technology to make multimedia calls such as high-definition voice and video. A transmission form of high-definition digital call + picture, giving people clearer sound quality and a new way of face-to-face video calls. However, as more and more people use this call method, the base station server that carries the VOLTE call will become more and more busy, because the VOLTE call needs to initiate a registration request to the base station first, and then successfully register on the VOLTE network and obtain the Only after the service instruction issued by the network to the terminal can it be actually used. The service instructions issued by the network include high-definition voice VOIP and video call VT. Sometimes the current network does not provide one or even both of these two services for some reason, but the terminal can still register on the network. , which may make users doubt the VOLTE function provided by the terminal, thinking that the terminal has problems and the user experience is not good. Sometimes the user does not need one of these two services, but only needs to register on the network. At this time, the user can still receive and send SMS through the VOLTE network. The user needs to know whether the terminal can What kind of VOLTE service is provided, but the current terminal does not have this function.

SUMMARY OF THE INVENTION

The main purpose of the present invention is to propose an optimization method and an optimization system for a multimedia call, aiming at improving the user's multimedia call experience.

In order to achieve the above object, the present invention provides a method for optimizing a multimedia call, which is applied to a terminal, and is characterized by comprising the steps of: sending the multimedia call service supported by the current terminal to the current network; obtaining the multimedia call service delivered by the current network Availability indication; according to the incoming call type and the multimedia call service availability indication, select a multimedia call or a normal call.

Preferably, after obtaining the multimedia call service availability indication issued by the current network, the method further includes the step of: converting the obtained multimedia call service availability indication into corresponding operation keys; At least one of the available state that the network supports a certain multimedia calling service, the unavailable state that indicates that the current network does not support a certain multimedia calling service, and the unsupported state that indicates that the current terminal does not support a certain multimedia calling service. kind.

Preferably, before sending the multimedia call service supported by the current terminal to the current network, the method further includes the step of: enabling or disabling the multimedia call service supported by the current terminal through a setting key.

Preferably, if the current network is a CA network, the method further includes the step of: the current terminal registers different multimedia call services with the primary cell and the secondary cell under the CA network respectively.

Preferably, the incoming call types include multimedia calls such as video calls, high-definition voice calls, and ordinary calls; the multimedia call service availability indication includes the current network and the call mode supported by the current terminal; the multimedia call service is combined according to the incoming call type Availability indicates that the selection of multimedia calls or ordinary calls includes:

When the type of the incoming call is a video call: if both the current network and the current terminal in the multimedia call service availability indication support video calls, a session is established in the form of a video call; if the multimedia call service availability indication in the If at least one of the current network or the current terminal does not support video calls, and both the current network or the current terminal support high-definition voice calls, a session is established in the form of high-definition voice calls; if the current network or current terminal in the multimedia call service availability indication If at least one of the network or the current terminal does not support video calls, and at least one of the current network or the current terminal does not support high-definition voice calls, the session is established as a normal call;

When the type of the incoming call is a high-definition voice call: if both the current network and the current terminal in the multimedia call service availability indication support high-definition voice calls, a session is established in the form of a high-definition voice call; if the multimedia call service availability If at least one of the current network or the current terminal mentioned in the instruction does not support high-definition voice calls, the session is established in the form of ordinary calls;

When the type of the incoming call is a normal call: establish a session in the way of a normal call.

In addition, in order to achieve the above object, the present invention also proposes a multimedia call optimization system, which is applied to a terminal, and is characterized in that it includes: a message field sending unit for sending the multimedia call service supported by the current terminal to the current network; the network service The availability acquisition unit is used to acquire the availability indication of the multimedia call service delivered by the current network; the call network selection unit is used to select the multimedia call or the ordinary call according to the type of the incoming call and the availability indication of the multimedia call service delivered by the current network.

Preferably, it also includes an operation key generation unit, which is used to convert the obtained indication of the availability of the multimedia call service into corresponding operation keys; at least one of an unavailable state indicating that the current network does not support a certain multimedia calling service, and an unsupporting state indicating that the current terminal does not support a certain multimedia calling service.

Preferably, it also includes a service setting unit, configured to enable or disable the multimedia call service supported by the current terminal through a setting key.

Preferably, if the current network is a CA network, a separate registration unit is further included for registering different multimedia call services with the primary cell and the secondary cell under the CA network respectively.

Preferably, the incoming call types include multimedia calls such as video calls, high-definition voice calls, and ordinary calls; the multimedia call service availability indication includes the current network and the call mode supported by the current terminal; the call network selection unit is specifically used for:

When the type of the incoming call is a video call: if both the current network and the current terminal in the multimedia call service availability indication support video calls, a session is established in the form of a video call; if the multimedia call service availability indication in the If at least one of the current network or the current terminal does not support video calls, and both the current network or the current terminal support high-definition voice calls, a session is established in the form of high-definition voice calls; if the current network or current terminal in the multimedia call service availability indication If at least one of the network or the current terminal does not support video calls, and at least one of the current network or the current terminal does not support high-definition voice calls, the session is established as a normal call;

When the type of the incoming call is a high-definition voice call: if both the current network and the current terminal in the multimedia call service availability indication support high-definition voice calls, a session is established in the form of a high-definition voice call; if the multimedia call service availability If at least one of the current network or the current terminal mentioned in the instruction does not support high-definition voice calls, the session is established in the form of ordinary calls;

When the type of the incoming call is a normal call: establish a session in the way of a normal call.

The method and system for optimizing multimedia calls applied to terminals proposed by the present invention improve the experience of multimedia calls by selecting the final call mode by combining the incoming call type with the media call service availability of the current terminal and the current network.

Description of drawings

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

Fig. 2 is the wireless communication system schematic diagram of the mobile terminal as shown in Fig. 1;

3 is a structural diagram of an optimized system applied to a multimedia call of a mobile terminal according to the first embodiment of the present invention;

4 is a structural diagram of an optimized system applied to a multimedia call of a mobile terminal according to the second embodiment of the present invention;

5 is a structural diagram of an optimized system applied to a multimedia call of a mobile terminal according to a third embodiment of the present invention;

FIG. 6 is a structural diagram of an optimized system applied to a multimedia call on a server side according to a fourth embodiment of the present invention;

7 is a schematic flowchart of a method for optimizing a multimedia call applied to a mobile terminal according to a fifth embodiment of the present invention;

8 is a schematic flowchart of a method for optimizing a multimedia call applied to a mobile terminal according to a sixth embodiment of the present invention;

9 is a schematic flowchart of a method for optimizing a multimedia call applied to a mobile terminal according to a seventh embodiment of the present invention;

10 is a schematic flowchart of a method for optimizing a multimedia call applied to a server according to an eighth embodiment of the present invention;

The realization, functional characteristics and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments.

Detailed ways

It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

A mobile terminal implementing various embodiments of the present invention will now be described with reference to the accompanying drawings. In the following description, suffixes such as 'module', 'component' or 'unit' used to represent elements are used only to facilitate the description of the present invention, and have no specific meaning per se. Therefore, "module" and "part" can be mixed.

The mobile terminal may be implemented in various forms. For example, the terminal described in the present invention may include, for example, a mobile phone, a smart phone, a notebook computer, a digital broadcast receiver, a PDA (Personal Digital Assistant), a PAD (Tablet Computer), a PMP (Portable Multimedia Player), a navigation device, and the like mobile terminals as well as stationary terminals such as digital TVs, desktop computers, etc. Below, it is assumed that the terminal is a mobile terminal. However, those skilled in the art will understand that the configuration according to the embodiments of the present invention can also be applied to stationary type terminals, in addition to elements especially for mobile purposes.

FIG. 1 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 a wireless communication unit 110 , an A/V (audio/video) input unit 120 , a user input unit 130 , a sensing unit 140 , an output unit 150 , a memory 160 , an interface unit 170 , a controller 180 and a power supply unit 190 and many more. Figure 1 illustrates a mobile terminal having various components, but it should be understood that implementation of all of the illustrated components is not a requirement. More or fewer components may alternatively be implemented. The elements of the mobile terminal will be described in detail below.

The wireless communication unit 110 typically includes one or more components that allow radio communication between the mobile terminal 100 and a wireless communication system or network. For example, the wireless communication unit may include at least one of a broadcast receiving module 111 , a mobile communication module 112 , a wireless Internet module 113 , a short-range communication module 114 and a location information module 115 .

The broadcast receiving module 111 receives broadcast signals and/or broadcast related information from an external broadcast management server via a broadcast channel. Broadcast channels may include satellite channels and/or terrestrial channels. The broadcast management server may be a server that generates and transmits broadcast signals and/or broadcast-related information or a server that receives previously generated broadcast signals and/or broadcast-related information and transmits them to terminals. The broadcast signal may include a TV broadcast signal, a radio broadcast signal, a data broadcast signal, and the like. Also, the broadcast signal may further include a broadcast signal combined with a TV or radio broadcast signal. The broadcast-related information may also be provided via a mobile communication network, and in this case, the broadcast-related information may be received by the mobile communication module 112 . The broadcast signal may exist in various forms, for example, it may exist in the form of an Electronic Program Guide (EPG) for Digital Multimedia Broadcasting (DMB), an Electronic Service Guide (ESG) for Digital Video Broadcasting Handheld (DVB-H), etc. . The broadcast receiving module 111 may receive signal broadcasts by using various types of broadcast systems. In particular, the broadcast receiving module 111 may use media such as Multimedia Broadcasting-Terrestrial (DMB-T), Digital Multimedia Broadcasting-Satellite (DMB-S), Digital Video Broadcasting-Handheld (DVB-H), Forward Link Media (MediaFLO ^@ ), digital broadcasting systems such as Integrated Service for Terrestrial Digital Broadcasting (ISDB-T), etc. receive digital broadcasting. The broadcast receiving module 111 may be configured to be suitable for various broadcast systems providing broadcast signals as well as the above-described digital broadcast systems. Broadcast signals and/or broadcast-related information received via the broadcast receiving module 111 may be stored in the memory 160 (or other types of storage media).

The mobile communication module 112 transmits and/or receives radio signals to and/or from at least one of a base station (eg, an access point, a Node B, etc.), an external terminal, and a server. Such radio signals may include voice call signals, video call signals, or various types of data sent and/or received in accordance with text and/or multimedia messages.

The wireless Internet module 113 supports wireless Internet access of the mobile terminal. The module can be internally or externally coupled to the terminal. The wireless Internet access technologies involved in this module may include WLAN (Wireless LAN) (Wi-Fi), Wibro (Wireless Broadband), Wimax (World Interoperability for Microwave Access), HSDPA (High Speed Downlink Packet Access), etc. .

The short-range communication module 114 is a module for supporting short-range communication. Some examples of short-range communication technologies include Bluetooth ^™ , Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee ^™ , and the like.

The location information module 115 is a module for checking or acquiring location information of the mobile terminal. A typical example of the location information module is GPS (Global Positioning System). According to current technology, the GPS module 115 calculates distance information and accurate time information from three or more satellites and applies triangulation to the calculated information, thereby accurately calculating three-dimensional current position information from longitude, latitude, and altitude. Currently, the method for calculating position and time information uses three satellites and corrects errors of the calculated position and time information by using another satellite. In addition, the GPS module 115 can calculate velocity information by continuously calculating current position information in real time.

The A/V input unit 120 is used to receive audio or video signals. The A/V input unit 120 may include a camera 121 and a microphone 122, and the camera 121 processes image data of still pictures or videos obtained by an image capture device in a video capture mode or an image capture mode. The processed image frame may be displayed on the display unit 151 . The image frames processed by the camera 121 may be stored in the memory 160 (or other storage medium) or transmitted via the wireless communication unit 110, and two or more cameras 121 may be provided according to the configuration of the mobile terminal. The microphone 122 may receive sound (audio data) via the microphone in a telephone call mode, a recording mode, a voice recognition mode, etc. operating modes, and can process such sound into audio data. The processed audio (voice) data may be converted into a format transmittable to a mobile communication base station via the mobile communication module 112 for output in the case of a telephone call mode. The microphone 122 may implement various types of noise cancellation (or suppression) algorithms to remove (or suppress) noise or interference generated in the process of receiving and transmitting audio signals.

The user input unit 130 may generate key input data to control various operations of the mobile terminal according to commands input by the user. User input unit 130 allows a user to input various types of information, and may include a keyboard, dome, touch pad (eg, a touch-sensitive component that detects changes in resistance, pressure, capacitance, etc. due to being touched), scroll wheel , joystick, etc. In particular, when the touch panel is superimposed on the display unit 151 in the form of a layer, a touch screen may be formed.

The sensing unit 140 detects the current state of the mobile terminal 100, (eg, the open or closed state of the mobile terminal 100), the position of the mobile terminal 100, the presence or absence of a user's contact (ie, touch input) to the mobile terminal 100, the mobile terminal The orientation of the mobile terminal 100 , the acceleration or deceleration movement and direction of the mobile terminal 100 , etc., and a command or signal for controlling the operation of the mobile terminal 100 is generated. For example, when the mobile terminal 100 is implemented as a slide-type mobile phone, the sensing unit 140 may sense whether the slide-type phone is opened or closed. In addition, the sensing unit 140 can detect whether the power supply unit 190 provides power or whether the interface unit 170 is coupled with an external device. The sensing unit 140 may include a proximity sensor 141 which will be described below in conjunction with a touch screen.

The interface unit 170 serves as an interface through which at least one external device can be connected to the mobile terminal 100 . For example, external devices may include wired or wireless headset ports, external power (or battery charger) ports, wired or wireless data ports, memory card ports, ports for connecting devices with identification modules, audio input/output (I/O) ports, video I/O ports, headphone ports, and more. The identification module may store various information for authenticating the user using the mobile terminal 100 and may include a user identification module (UIM), a customer identification module (SIM), a universal customer identification module (USIM), and the like. In addition, a device having an identification module (hereinafter referred to as an "identification device") may take the form of a smart card, and thus, the identification device may be connected to the mobile terminal 100 via a port or other connection means. The interface unit 170 may be used to receive input (eg, 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 between the mobile terminal and the external device transfer data between.

In addition, when the mobile terminal 100 is connected to an external base, the interface unit 170 may function as a path through which power is allowed to be supplied from the base to the mobile terminal 100 or may function as a path through which various command signals input from the base are transmitted to the mobile terminal 100 The path to the terminal. Various command signals or power input from the base may be used as a signal for identifying whether the mobile terminal is accurately mounted on the base. The output unit 150 is configured to provide output signals (eg, audio signals, video signals, alarm signals, vibration signals, etc.) in a visual, audio and/or tactile manner. The output unit 150 may include a display unit 151, an audio output module 152, an alarm unit 153, and the like.

The display unit 151 may display information processed in the mobile terminal 100 . For example, when the mobile terminal 100 is in a phone call mode, the display unit 151 may display a user interface (UI) or a graphical user interface (GUI) related to a call or other communication (eg, text messaging, multimedia file download, etc.). When the mobile terminal 100 is in a video call mode or an image capture mode, the display unit 151 may display a captured image and/or a received image, a UI or GUI showing the video or image and related functions, and the like.

Meanwhile, when the display unit 151 and the touch panel are superimposed on each other in the form of layers to form a touch screen, the display unit 151 may function as an input device and an output device. The display unit 151 may include at least one of a liquid crystal display (LCD), a thin film transistor LCD (TFT-LCD), an organic light emitting diode (OLED) display, a flexible display, a three-dimensional (3D) display, and the like. Some of these displays may be constructed to be transparent to allow users to view from the outside, which may be referred to as transparent displays, a typical transparent display may be, for example, a TOLED (Transparent Organic Light Emitting Diode) display or the like. Depending on the particular desired implementation, the mobile terminal 100 may include two or more display units (or other display devices), eg, the mobile terminal may include an external display unit (not shown) and an internal display unit (not shown) . The touch screen can be used to detect touch input pressure as well as touch input position and touch input area.

The audio output module 152 can convert the audio data received by the wireless communication unit 110 or stored in the memory 160 when the mobile terminal is in a call signal receiving mode, a talking mode, a recording mode, a voice recognition mode, a broadcast receiving mode, etc. audio signal and output as sound. Also, the audio output module 152 may provide audio output related to a specific function performed by the mobile terminal 100 (eg, call signal reception sound, message reception sound, etc.). The audio output module 152 may include a speaker, a buzzer, and the like.

The alarm unit 153 may provide an output to notify the mobile terminal 100 of the occurrence of an event. Typical events may include call reception, message reception, key signal input, touch input, and the like. In addition to audio or video output, the alarm unit 153 may provide output in various ways to notify the occurrence of an event. For example, the alarm unit 153 may provide output in the form of vibrations, and when a call, message, or some other incoming communication is received, the alarm unit 153 may provide a haptic output (ie, vibration) to notify the user of it. By providing such a tactile output, the user can recognize the occurrence of various events even when the user's mobile phone is in the user's pocket. The alarm unit 153 may also provide an output notifying the occurrence of an event via the display unit 151 or the audio output module 152 .

The memory 160 may store software programs and the like for processing and control operations performed by the controller 180, or may temporarily store data that has been or will be output (eg, phonebook, messages, still images, videos, etc.). Also, the memory 160 may store data on various manners of vibration and audio signals output when a touch is applied to the touch screen.

The memory 160 may include at least one type of storage medium including flash memory, hard disk, multimedia card, card-type memory (eg, SD or DX memory, etc.), random access memory (RAM), static random access memory ( SRAM), read only memory (ROM), electrically erasable programmable read only memory (EEPROM), programmable read only memory (PROM), magnetic memory, magnetic disks, optical disks, and the like. Also, the mobile terminal 100 may cooperate with a network storage device that performs the storage function of the memory 160 through a network connection.

The controller 180 generally controls the overall operation of the mobile terminal. For example, the controller 180 performs control and processing related to voice calls, data communications, video calls, and the like. In addition, the controller 180 may include a multimedia module 1810 for reproducing (or playing back) multimedia data, and the multimedia module 1810 may be constructed within the controller 180 or may be constructed separately from the controller 180 . The controller 180 may perform pattern recognition processing to recognize handwriting input or picture drawing input performed on the touch screen as characters or images.

The power supply unit 190 receives external power or internal power under the control of the controller 180 and provides appropriate power required to operate various elements and components.

The various embodiments described herein can be implemented in computer-readable media using, for example, computer software, hardware, or any combination thereof. For hardware implementation, the embodiments described herein can be implemented using application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays ( FPGA), processors, controllers, microcontrollers, microprocessors, electronic units designed to perform the functions described herein are implemented, in some cases such implementations may be implemented in the controller 180 implemented in. For software implementation, embodiments such as procedures or functions may be implemented with separate software modules that allow the performance of at least one function or operation. The software codes may be implemented by a software application (or program) written in any suitable programming language, which may be stored in memory 160 and executed by controller 180 .

So far, the mobile terminal has been described in terms of its functions. Hereinafter, for the sake of brevity, a slide-type mobile terminal among various types of mobile terminals such as a folder-type, bar-type, swing-type, slide-type mobile terminal and the like will be described as an example. Therefore, the present invention can be applied to any type of mobile terminal, and is not limited to a slide-type mobile terminal.

The mobile terminal 100 as shown in FIG. 1 may be configured to operate using, for example, wired and wireless communication systems and satellite-based communication systems that transmit data via frames or packets.

A communication system in which a mobile terminal according to the present invention can operate will now be described with reference to FIG. 2 .

Such communication systems may use different air interfaces and/or physical layers. For example, air interfaces used by communication systems include, for example, Frequency Division Multiple Access (FDMA), Time Division Multiple Access (TDMA), Code Division Multiple Access (CDMA), and Universal Mobile Telecommunications System (UMTS) (in particular, Long Term Evolution (LTE) ), Global System for Mobile Communications (GSM), etc. As a non-limiting example, the following description refers to a CDMA communication system, but such teachings are equally applicable to other types of systems.

2 , a CDMA wireless communication system may include a plurality of mobile terminals 100 , a plurality of base stations (BSs) 270 , a base station controller (BSC) 275 and a mobile switching center (MSC) 280 . MSC 280 is configured to interface with public switched telephone network (PSTN) 290 . MSC 280 is also configured to interface with BSC 275, which may be coupled to base station 270 via a backhaul line. The backhaul line may be constructed according to any of several known interfaces including, for example, E1/T1, ATM, IP, PPP, Frame Relay, HDSL, ADSL or xDSL. It will be appreciated that the system as shown in FIG. 2 may include multiple BSC2750s.

Each BS 270 may serve one or more partitions (or areas), each of which is covered by a multi-directional antenna or antenna directed in a particular direction radially away from the BS 270. Alternatively, each partition may be covered by two or more antennas for diversity reception. Each BS 270 may be configured to support multiple frequency allocations, and each frequency allocation has a specific spectrum (eg, 1.25MHz, 5MHz, etc.).

The intersection of partitions and frequency assignments may be referred to as CDMA channels. BS 270 may also be called a base transceiver subsystem (BTS) or other equivalent terminology. In such a case, the term "base station" may be used to refer generally to a single BSC 275 and at least one BS 270. A base station may also be referred to as a "cell site". Alternatively, each partition of a particular BS 270 may be referred to as multiple cell sites.

As shown in FIG. 2, a broadcast transmitter (BT) 295 transmits broadcast signals to mobile terminals 100 operating within the system. The broadcast receiving module 111 as shown in FIG. 1 is provided at the mobile terminal 100 to receive broadcast signals transmitted by the BT295. In Figure 2, several Global Positioning System (GPS) satellites 300 are shown. The satellites 300 help locate at least one of the plurality of mobile terminals 100 .

In Figure 2, a number of satellites 300 are depicted, but it is understood that any number of satellites may be utilized to obtain useful positioning information. The GPS module 115 as shown in FIG. 1 is generally configured to cooperate with the satellites 300 to obtain the desired positioning information. Instead of or in addition to GPS tracking technology, other technologies that can track the location of the mobile terminal may be used. Additionally, at least one GPS satellite 300 may selectively or additionally handle satellite DMB transmissions.

As a typical operation of a wireless communication system, the BS 270 receives reverse link signals from various mobile terminals 100 . Mobile terminals 100 are typically involved in calls, messaging, and other types of communications. Each reverse link signal received by a particular base station 270 is processed within a particular BS 270 . The obtained data is forwarded to the relevant BSC275. The BSC provides call resource allocation and coordinated mobility management functions including soft handover procedures between BSs 270. BSC 275 also routes received data to MSC 280, which provides additional routing services for interfacing with PSTN 290. Similarly, PSTN 290 interfaces with MSC 280 , which interfaces with BSC 275 , and BSC 275 controls BS 270 to send forward link signals to mobile terminal 100 accordingly.

Based on the above-mentioned mobile terminal hardware structure and communication system, various embodiments of the method of the present invention are proposed.

As shown in FIG. 3 , the first embodiment of the present invention proposes a multimedia call optimization system, which is applied to a terminal, and includes: a message field sending unit 11 for sending multimedia call services supported by the current terminal to the current network; network service availability The obtaining unit 12 is configured to obtain the availability indication of the multimedia call service issued by the current network; the call network selection unit 13 is configured to select the multimedia call or the ordinary call according to the type of the incoming call in combination with the above-mentioned availability indication of the multimedia call service.

Specifically, the above-mentioned multimedia call services include high-definition voice calls and video calls. The message field sending unit 11 sends a SIP message field to the current network, and the SIP message field includes the service availability of high-definition voice calls and video calls. For example, the current terminal does not support a certain If the video call service is used, the sent SIP message field carries the "some service unavailable" field and is sent to the network, for example, HD_Voice=1, VT=0, that is, the video call is unavailable. In specific implementation, the message field sending unit 11 may send an indication to the current network at regular intervals to obtain service availability and update current service requirements, and the network will respond to the available service type and availability after receiving the indication.

Generally, the incoming call types include multimedia calls such as video calls, high-definition voice calls, and ordinary calls; the multimedia call service availability indication includes the current network and the call mode supported by the current terminal; when the call arrives on the network, the call network selection unit 13 Select a multimedia call or a normal call according to the availability indication of the multimedia call service delivered by the current network, specifically:

When the incoming call type is a video call: if both the current network and the current terminal in the multimedia call service availability indication support video calls, the session is established in the form of a video call; if at least one of the current network or the current terminal in the multimedia call service availability indication does not support video calls If video calls are supported, and the current network or current terminal supports high-definition voice calls, the session will be established in the form of high-definition voice calls; if at least one of the current network or the current terminal in the multimedia call service availability indication does not support video calls, and the current network or At least one of the current terminals does not support high-definition voice calls, and the session is established in the form of ordinary calls;

When the incoming call type is HD voice call: if both the current network and the current terminal in the multimedia call service availability indication support high-definition voice calls, the session will be established in the form of a high-definition voice call; if the current network or current terminal in the multimedia call service availability indication If at least one does not support high-definition voice calls, the session will be established as a normal call;

When the incoming call type is a normal call: establish a session in the way of a normal call.

In this embodiment, the terminal needs to select the final call mode according to the type of the incoming call in combination with the current terminal and the availability of the media call service of the current network, which provides a good experience for the user.

As shown in FIG. 4 , a second embodiment of the present invention proposes a multimedia call optimization system, which is applied to a terminal, and includes: a message field sending unit 11 for sending multimedia call services supported by the current terminal to the current network; network service availability The obtaining unit 12 is configured to obtain the availability indication of the multimedia call service issued by the current network; the call network selection unit 13 is configured to select the multimedia call or the ordinary call according to the type of the incoming call in combination with the above-mentioned availability indication of the multimedia call service.

Different from the previous embodiment, this embodiment also includes at least one of the operation key generation unit 14 and the service setting unit 15, wherein the operation key generation unit 14 is used to convert the acquired multimedia call service availability indication into Corresponding operation keys; the operation keys include an available state used to indicate that the current network supports a certain multimedia call service, an unavailable state used to indicate that the current network does not support a certain multimedia call service, and used to indicate that the current terminal does not support a certain multimedia call service. At least one of the unsupported states of the calling service. In specific implementation, the operation key generation unit 14 can report the availability indication of the multimedia call service issued by the current network to the UI, and the UI converts the corresponding service and availability into designated operation keys and presents the available state and the unavailable state; wherein, In the unavailable state, it can be displayed in gray and cannot be pressed. Additionally, the unsupported state of an action key can be displayed with an exclamation point. The service setting unit 15 is used for enabling or disabling the multimedia call service supported by the current terminal through the setting key. Specifically, in the terminal VOLTE setting menu, an on/off setting key of the multimedia call service can be added, including a setting key for high-definition voice and video. When the multimedia call service supported by the current terminal is turned on or off through the setting key, the corresponding operation key is in an unsupported state.

The above-mentioned multimedia call services include high-definition voice calls and video calls. The message field sending unit 11 sends a SIP message field to the current network, and the SIP message field includes the service availability of high-definition voice calls and video calls. For example, the current terminal does not support a certain video call service. , then the sent SIP message field carries the "some service unavailable" field and is sent to the network, for example, HD_Voice=1, VT=0, that is, the video call is unavailable. In specific implementation, the message field sending unit 11 may send an indication to the current network at regular intervals to obtain service availability and update current service requirements, and the network will respond to the available service type and availability after receiving the indication.

Generally, the incoming call types include multimedia calls such as video calls, high-definition voice calls, and ordinary calls; the multimedia call service availability indication includes the current network and the call mode supported by the current terminal; when the call arrives on the network, the call network selection unit 13 Select a multimedia call or a normal call according to the availability indication of the multimedia call service delivered by the current network, specifically:

When the incoming call type is a video call: if both the current network and the current terminal in the multimedia call service availability indication support video calls, the session is established in the form of a video call; if at least one of the current network or the current terminal in the multimedia call service availability indication does not support video calls If video calls are supported, and the current network or current terminal supports high-definition voice calls, the session will be established in the form of high-definition voice calls; if at least one of the current network or the current terminal in the multimedia call service availability indication does not support video calls, and the current network or At least one of the current terminals does not support high-definition voice calls, and the session is established in the form of ordinary calls;

When the incoming call type is HD voice call: if both the current network and the current terminal in the multimedia call service availability indication support high-definition voice calls, the session will be established in the form of a high-definition voice call; if the current network or current terminal in the multimedia call service availability indication If at least one does not support high-definition voice calls, the session will be established as a normal call;

When the incoming call type is a normal call: establish a session in the way of a normal call.

In this embodiment, the terminal needs to select the final call mode based on the type of incoming call and the availability of the media call service of the current terminal and the current network, so as to provide the user with a good experience, and the service setting unit can independently enable or disable the corresponding multimedia call service. .

As shown in FIG. 5 , a third embodiment of the present invention proposes a multimedia call optimization system, which is applied to a terminal, and includes: a message field sending unit 11 for sending multimedia call services supported by the current terminal to the current network; network service availability The obtaining unit 12 is configured to obtain the availability indication of the multimedia call service issued by the current network; the call network selection unit 13 is configured to select the multimedia call or the ordinary call according to the type of the incoming call in combination with the above-mentioned availability indication of the multimedia call service.

In this embodiment, at least one of the operation key generation unit 14 and the service setting unit 15 is also included, wherein the operation key generation unit 14 is used to convert the acquired multimedia call service availability indication into corresponding operation keys; At least one of the available status indicating that the current network supports a certain multimedia calling service, the unavailable status indicating that the current network does not support a certain multimedia calling service, and the unsupporting status indicating that the current terminal does not support a certain multimedia calling service. A sort of. In specific implementation, the operation key generation unit 14 can report the availability indication of the multimedia call service issued by the current network to the UI, and the UI converts the corresponding service and availability into designated operation keys and presents the available state and the unavailable state; wherein, In the unavailable state, it can be displayed in gray and cannot be pressed. Additionally, the unsupported state of an action key can be displayed with an exclamation point. The service setting unit 15 is used for enabling or disabling the multimedia call service supported by the current terminal through the setting key. Specifically, in the terminal VOLTE setting menu, an on/off setting key of the multimedia call service can be added, including a setting key for high-definition voice and video. When the multimedia call service supported by the current terminal is turned on or off through the setting key, the corresponding operation key is in an unsupported state.

The above-mentioned multimedia call services include high-definition voice calls and video calls. The message field sending unit 11 sends a SIP message field to the current network, and the SIP message field includes the service availability of high-definition voice calls and video calls. For example, the current terminal does not support a certain video call service. , then the sent SIP message field carries the "some service unavailable" field and is sent to the network, for example, HD_Voice=1, VT=0, that is, the video call is unavailable. In specific implementation, the message field sending unit 11 may send an indication to the current network at regular intervals to obtain service availability and update current service requirements, and the network will respond to the available service type and availability after receiving the indication.

Generally, the incoming call types include multimedia calls such as video calls, high-definition voice calls, and ordinary calls; the multimedia call service availability indication includes the current network and the call mode supported by the current terminal; when the call arrives on the network, the call network selection unit 13 Select a multimedia call or a normal call according to the availability indication of the multimedia call service delivered by the current network, specifically:

When the incoming call type is a video call: if both the current network and the current terminal in the multimedia call service availability indication support video calls, the session is established in the form of a video call; if at least one of the current network or the current terminal in the multimedia call service availability indication does not support video calls If video calls are supported, and the current network or current terminal supports high-definition voice calls, the session will be established in the form of high-definition voice calls; if at least one of the current network or the current terminal in the multimedia call service availability indication does not support video calls, and the current network or At least one of the current terminals does not support high-definition voice calls, and the session is established in the form of ordinary calls;

When the incoming call type is HD voice call: if both the current network and the current terminal in the multimedia call service availability indication support high-definition voice calls, the session will be established in the form of a high-definition voice call; if the current network or current terminal in the multimedia call service availability indication If at least one does not support high-definition voice calls, the session will be established as a normal call;

When the incoming call type is a normal call: establish a session in the way of a normal call.

Different from the previous embodiment, in this embodiment, if the current network is the CA network, a separate registration unit 16 is further included for registering different multimedia call services with the primary cell and the secondary cell under the CA network. Specifically, according to the needs of the user, if video priority is selected, the terminal will preferentially select the cell with better signal to register the video service, and register the high-definition voice service with the cell with the second signal. On the contrary, the terminal registers the high-definition voice service with the cell with better signal. In specific implementation, the respective registration unit 16 may include options “video priority”, “HD voice priority”, and “automatic selection” set in the terminal, because these services have higher bandwidth requirements for LTE, when it is detected that between the main and auxiliary road cells When there is a large gap in signal quality, in order to enable the current user to obtain the best and fastest resources for the preferentially needed service, according to the user's preferred service type, the preferred service is selected between the primary cell and the secondary cell with the best signal quality. The above-mentioned signal quality is not only the signal strength, but also includes the available bandwidth of the cell, the transmit power of the cell signal, and so on.

In this embodiment, the terminal needs to select the final call mode according to the type of the incoming call in combination with the current terminal and the availability of the media call service of the current network, which provides a good experience for the user. Furthermore, the corresponding multimedia call service can be turned on or off independently through the service setting unit. Under the CA network, different services can be registered to different cells to obtain better call quality.

As shown in FIG. 6 , the present invention also provides an optimization system for multimedia calls, which is applied to the server and includes: a receiving unit 21 for receiving the multimedia call service supported by the current terminal; The configuration unit 23 is configured to perform corresponding configuration according to the multimedia call service supported by the current terminal.

Specifically, if the current terminal is turned off or does not support the video call service, the configuration unit can preferentially use the high-definition voice call service to establish a session; if the current terminal is turned off or does not support the high-definition voice call service, the video call is preferentially used to establish a session; if both are turned off If it is not supported, the CSFB mode, that is, the normal call method, is preferred to establish a session.

As shown in FIG. 7 , the present invention also provides an optimization method for multimedia calls, which is applied to a terminal, and includes the steps of: S10, sending the multimedia call service supported by the current terminal to the current network; S20, acquiring the multimedia call service delivered by the current network Availability indication; S30. Select a multimedia call or a normal call according to the type of the call combined with the availability indication of the multimedia call service.

Wherein, in step S10, the multimedia call service supported by the current terminal may be sent in a SIP message field, and the SIP message field includes the service availability of high-definition voice calls and video calls. For example, if the current terminal does not support a certain video call service, send The SIP message field of the SIP message carries the "some service unavailable" field and is sent to the network, for example, HD_Voice=1, VT=0, that is, the video call is unavailable. In specific implementation, an indication may be sent to the current network at regular intervals to obtain service availability and update current service requirements, and the network will respond to the available service type and availability after receiving the indication.

In step S20, after obtaining the multimedia call service availability indication issued by the current network, the method further includes the steps of: converting the obtained multimedia call service availability indication into corresponding operation keys; the operation keys include a function for indicating that the current network supports a certain multimedia call at least one of an available state of the service, an unavailable state used to indicate that the current network does not support a certain multimedia call service, and an unsupported state used to indicate that the current terminal does not support a certain multimedia call service. During specific implementation, the availability indication of the multimedia call service issued by the current network can be reported to the UI, and the UI can convert the corresponding service and availability into designated operation keys and present an available state and an unavailable state; wherein, the unavailable state can be displayed Grey cannot be pressed. Additionally, the unsupported state of an action key can be displayed with an exclamation point.

Generally, the incoming call types include multimedia calls such as video calls, high-definition voice calls, and ordinary calls; the multimedia call service availability indication includes the current network and the call mode supported by the current terminal; the above step S30 specifically includes:

When the incoming call type is a video call: if both the current network and the current terminal in the multimedia call service availability indication support video calls, the session is established in the form of a video call; if at least one of the current network or the current terminal in the multimedia call service availability indication does not support video calls If video calls are supported, and the current network or current terminal supports high-definition voice calls, the session will be established in the form of high-definition voice calls; if at least one of the current network or the current terminal in the multimedia call service availability indication does not support video calls, and the current network or At least one of the current terminals does not support high-definition voice calls, and the session is established in the form of ordinary calls;

When the incoming call type is HD voice call: if both the current network and the current terminal in the multimedia call service availability indication support high-definition voice calls, the session will be established in the form of a high-definition voice call; if the current network or current terminal in the multimedia call service availability indication If at least one does not support high-definition voice calls, the session will be established as a normal call;

When the incoming call type is a normal call: establish a session in the way of a normal call.

In this embodiment, the terminal needs to select the final call mode according to the type of the incoming call in combination with the current terminal and the availability of the media call service of the current network, which provides a good experience for the user.

As shown in FIG. 8 , another embodiment of the present invention further provides a method for optimizing a multimedia call, which is applied to a terminal, and includes the steps of: S10, sending a multimedia call service supported by the current terminal to the current network; S20, acquiring the current network Sending the multimedia call service availability indication; S30. Select a multimedia call or an ordinary call according to the incoming call type and the multimedia call service availability indication delivered by the current network.

Wherein, in step S10, the multimedia call service supported by the current terminal may be sent in a SIP message field, and the SIP message field includes the service availability of high-definition voice calls and video calls. For example, if the current terminal does not support a certain video call service, send The SIP message field of the SIP message carries the "some service unavailable" field and is sent to the network, for example, HD_Voice=1, VT=0, that is, the video call is unavailable. In specific implementation, an indication may be sent to the current network at regular intervals to obtain service availability and update current service requirements, and the network will respond to the available service type and availability after receiving the indication.

In step S20, after obtaining the multimedia call service availability indication issued by the current network, the method further includes the steps of: converting the obtained multimedia call service availability indication into corresponding operation keys; the operation keys include a function for indicating that the current network supports a certain multimedia call at least one of an available state of the service, an unavailable state used to indicate that the current network does not support a certain multimedia call service, and an unsupported state used to indicate that the current terminal does not support a certain multimedia call service. During specific implementation, the availability indication of the multimedia call service issued by the current network can be reported to the UI, and the UI can convert the corresponding service and availability into designated operation keys and present an available state and an unavailable state; wherein, the unavailable state can be displayed Grey cannot be pressed. Additionally, the unsupported state of an action key can be displayed with an exclamation point.

Generally, the incoming call types include multimedia calls such as video calls, high-definition voice calls, and ordinary calls; the multimedia call service availability indication includes the current network and the call mode supported by the current terminal; the above step S30 specifically includes:

When the incoming call type is a video call: if both the current network and the current terminal in the multimedia call service availability indication support video calls, the session is established in the form of a video call; if at least one of the current network or the current terminal in the multimedia call service availability indication does not support video calls If video calls are supported, and the current network or current terminal supports high-definition voice calls, the session will be established in the form of high-definition voice calls; if at least one of the current network or the current terminal in the multimedia call service availability indication does not support video calls, and the current network or At least one of the current terminals does not support high-definition voice calls, and the session is established in the form of ordinary calls;

When the incoming call type is HD voice call: if both the current network and the current terminal in the multimedia call service availability indication support high-definition voice calls, the session will be established in the form of a high-definition voice call; if the current network or current terminal in the multimedia call service availability indication If at least one does not support high-definition voice calls, the session will be established as a normal call;

When the incoming call type is a normal call: establish a session in the way of a normal call.

Different from the previous embodiment, in this embodiment, before step S10, step S1 is further included, and the multimedia call service supported by the current terminal is turned on or off through the setting key. Specifically, in the terminal VOLTE setting menu, an on/off setting key of the multimedia call service can be added, including a setting key for high-definition voice and video. When the multimedia call service supported by the current terminal is turned on or off through the setting key, the corresponding operation key is in an unsupported state.

In this embodiment, the terminal needs to select the final call mode in combination with the current terminal and the media call service availability of the current network, which provides the user with a good experience; and the terminal can independently enable or disable the corresponding multimedia call service.

As shown in FIG. 9 , another embodiment of the present invention also provides a method for optimizing a multimedia call, which is applied to a terminal, and includes the steps of: S10, sending a multimedia call service supported by the current terminal to the current network; S20, acquiring the current network Sending the multimedia call service availability indication; S30. Select a multimedia call or an ordinary call according to the incoming call type and the multimedia call service availability indication delivered by the current network.

Wherein, in step S10, the multimedia call service supported by the current terminal may be sent in a SIP message field, and the SIP message field includes the service availability of high-definition voice calls and video calls. For example, if the current terminal does not support a certain video call service, send The SIP message field of the SIP message carries the "some service unavailable" field and is sent to the network, for example, HD_Voice=1, VT=0, that is, the video call is unavailable. In specific implementation, an indication may be sent to the current network at regular intervals to obtain service availability and update current service requirements, and the network will respond to the available service type and availability after receiving the indication.

Before step S10, step S1 is also included, and the multimedia call service supported by the current terminal is turned on or off through the setting key. Specifically, in the terminal VOLTE setting menu, an on/off setting key of the multimedia call service can be added, including a setting key for high-definition voice and video. When the multimedia call service supported by the current terminal is turned on or off through the setting key, the corresponding operation key is in an unsupported state.

In step S20, after obtaining the multimedia call service availability indication issued by the current network, the method further includes the steps of: converting the obtained multimedia call service availability indication into corresponding operation keys; the operation keys include a function for indicating that the current network supports a certain multimedia call at least one of an available state of the service, an unavailable state used to indicate that the current network does not support a certain multimedia call service, and an unsupported state used to indicate that the current terminal does not support a certain multimedia call service. During specific implementation, the availability indication of the multimedia call service issued by the current network can be reported to the UI, and the UI can convert the corresponding service and availability into designated operation keys and present an available state and an unavailable state; wherein, the unavailable state can be displayed Grey cannot be pressed. Additionally, the unsupported state of an action key can be displayed with an exclamation point.

Generally, the incoming call types include multimedia calls such as video calls, high-definition voice calls, and ordinary calls; the multimedia call service availability indication includes the current network and the call mode supported by the current terminal; the above step S30 specifically includes:

When the incoming call type is a video call: if both the current network and the current terminal in the multimedia call service availability indication support video calls, the session is established in the form of a video call; if at least one of the current network or the current terminal in the multimedia call service availability indication does not support video calls If video calls are supported, and the current network or current terminal supports high-definition voice calls, the session will be established in the form of high-definition voice calls; if at least one of the current network or the current terminal in the multimedia call service availability indication does not support video calls, and the current network or At least one of the current terminals does not support high-definition voice calls, and the session is established in the form of ordinary calls;

When the incoming call type is HD voice call: if both the current network and the current terminal in the multimedia call service availability indication support high-definition voice calls, the session will be established in the form of a high-definition voice call; if the current network or current terminal in the multimedia call service availability indication If at least one does not support high-definition voice calls, the session will be established as a normal call;

When the incoming call type is a normal call: establish a session in the way of a normal call.

Different from the previous embodiment, in this embodiment, if the current network is the CA network, step S2 is further included: the current terminal registers different multimedia call services with the primary cell and the secondary cell under the CA network respectively. Specifically, according to the needs of the user, if video priority is selected, the terminal will preferentially select the cell with better signal to register the video service, and register the high-definition voice service with the cell with the second signal. On the contrary, the terminal registers the high-definition voice service with the cell with better signal. In the specific implementation, it can be included in the terminal setting options "video priority", "HD voice priority", "automatic selection", because these services have high bandwidth requirements for LTE, when it is detected that there is a signal quality gap between the main and auxiliary road cells. When it is large, in order to enable the current user to obtain the best and fastest resources for the preferentially needed service, according to the user's preferred service type, the priority service is selected between the primary cell and the secondary cell to register and obtain the cell with the best signal quality. The above-mentioned signal quality is not only the signal strength, but also includes the available bandwidth of the cell, the transmit power of the cell signal, and so on. It should be noted that, the above steps S1 or S2 do not have an absolute sequence relationship.

In this embodiment, the terminal needs to select the final call mode based on the type of incoming call and the availability of the media call service of the current terminal and the current network, so as to provide a good experience for the user; moreover, the terminal can independently turn on or off the corresponding multimedia call service; Under the CA network, different services can be registered to different cells to obtain better call quality.

As shown in FIG. 10 , the present invention also proposes a method for optimizing a multimedia call, which is applied to a server, including the steps of: A10, receiving the multimedia call service supported by the current terminal; A20, sending the multimedia call delivered by the current network The service availability indicates or stores the multimedia call service supported by the current terminal; A30. Perform corresponding configuration according to the multimedia call service supported by the current terminal.

In step A30, specifically, if the current terminal is closed or does not support the video call service, the session can be established by using the high-definition voice first; if the current terminal is closed or the high-definition voice call service is not supported, the video call is preferentially used to establish the session; if the two If both of them are closed or not supported, the CSFB mode, that is, the normal call method, is preferred to establish a session.

The method and system for optimizing a media call provided by the present invention judge the user's current needs when using the multimedia call service, combined with the service instructions issued by the current terminal and the current network, and display it on the UI in real time for the user to understand , to improve the user's experience of the multimedia call function.

It should be noted that, herein, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements, It also includes other elements not expressly listed or inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element.

The above-mentioned serial numbers of the embodiments of the present invention are only for description, and do not represent the advantages or disadvantages of the embodiments.

From the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general hardware platform, and of course hardware can also be used, but in many cases the former is better implementation. Based on this understanding, the technical solutions of the present invention can be embodied in the form of software products in essence or the parts that make contributions to the prior art, and the computer software products are stored in a storage medium (such as ROM/RAM, magnetic disk, CD), including at least two instructions to make a terminal device (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in the various embodiments of the present invention.

The above are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields , are similarly included in the scope of patent protection of the present invention.

Claims (8)

1. an optimization method for a multimedia call, applied to a terminal, is characterized in that, comprises the steps: Send the multimedia call service supported by the current terminal to the current network; Acquiring a multimedia call service availability indication issued by the current network, where the multimedia call service availability indication includes the current network and a call mode supported by the current terminal; When the incoming call type is a video call: if both the current network and the current terminal in the multimedia call service availability indication support video calls, a session is established in the form of a video call; if the current network and the current terminal in the multimedia call service availability indication At least one of the network or the current terminal does not support video calls, and both the current network or the current terminal support high-definition voice calls, the session is established in the form of high-definition voice calls; if the current network or At least one of the current terminals does not support video calls, and at least one of the current network or the current terminal does not support high-definition voice calls, then establish a session in a normal call mode; When the type of the incoming call is a high-definition voice call: if both the current network and the current terminal in the multimedia call service availability indication support high-definition voice calls, the session is established in the form of a high-definition voice call; if the multimedia call service availability indication is in the If at least one of the current network or the current terminal does not support high-definition voice calls, the session is established in the form of ordinary calls; When the incoming call type is a normal call: establish a session in the way of a normal call. 2. the optimization method of multimedia call according to claim 1, is characterized in that, after described obtaining the multimedia call service availability indication that described current network sends, also comprises the step: will obtain described multimedia call service availability indication Converted into corresponding operation keys; the operation keys include an available state for indicating that the current network supports a certain multimedia calling service, an unavailable state for indicating that the current network does not support a certain multimedia calling service, and for indicating that the current network supports a certain multimedia calling service. The terminal does not support at least one of the unsupported states of a certain multimedia call service. 3. the optimization method of multimedia call according to claim 1, is characterized in that, before described sending the multimedia call service supported by current terminal to current network, also comprises the step: open or close described current terminal support by setting key multimedia calling service. 4. The method for optimizing a multimedia call according to claim 1, wherein, if the current network is a CA network, further comprising the step of: the current terminal is directed to a primary cell and a secondary cell under the CA network, respectively. Sign up for different multimedia calling services. 5. An optimization system for a multimedia call, applied to a terminal, is characterized in that, comprising: a message field sending unit, used for sending the multimedia call service supported by the current terminal to the current network; a network service availability acquisition unit, configured to acquire a multimedia call service availability indication issued by the current network, where the multimedia call service availability indication includes the current network and a call mode supported by the current terminal; A call network selection unit, used for when the incoming call type is a video call: if both the current network and the current terminal in the multimedia call service availability indication support video calls, establish a session in a video call mode; if the multimedia call service availability indication At least one of the current network or the current terminal in the service availability indication does not support video calls, and both the current network or the current terminal support high-definition voice calls, then establish a session in the form of high-definition voice calls; if the multimedia call service availability If at least one of the current network or the current terminal in the instruction does not support video calls, and at least one of the current network or the current terminal does not support high-definition voice calls, then establish a session in a normal call mode; When the type of the incoming call is a high-definition voice call: if both the current network and the current terminal in the multimedia call service availability indication support high-definition voice calls, the session is established in the form of a high-definition voice call; if the multimedia call service availability indication is in the If at least one of the current network or the current terminal does not support high-definition voice calls, the session is established in the form of ordinary calls; When the incoming call type is a normal call: establish a session in the way of a normal call. 6. the optimization system of multimedia call according to claim 5, is characterized in that, also comprises operation key generation unit, is used for the described multimedia call service availability instruction of acquisition to be converted into corresponding operation key; Described operation key comprises It is used to indicate the available status that the current network supports a certain multimedia calling service, the unavailable status that indicates that the current network does not support a certain multimedia calling service, and the unsupported status that indicates that the current terminal does not support a certain multimedia calling service. at least one of them. 7 . The optimization system for multimedia calls according to claim 5 , further comprising a service setting unit for enabling or disabling a multimedia call service supported by the current terminal through a setting key. 8 . 8. the optimization system of multimedia call according to claim 5, is characterized in that, if described current network is CA network, then also comprises respectively registering unit, is used for the primary cell and secondary cell under described CA network respectively Sign up for different multimedia calling services.

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