WO2017133698A1

WO2017133698A1 - Wireless calling method and system

Info

Publication number: WO2017133698A1
Application number: PCT/CN2017/072950
Authority: WO
Inventors: 王健; 钱畅; 聂军军; 贾陆华
Original assignee: 上海触乐信息科技有限公司
Priority date: 2016-02-06
Filing date: 2017-02-06
Publication date: 2017-08-10
Also published as: CN107046673B; CN107046673A

Abstract

A wireless calling method and system, the method comprising: when a call request is detected, receiving the call request from a calling object; analyzing the received call request, extracting an identification of a target object, and according to the identification of the target object, looking up a communication port corresponding to the target object; transmitting the received call request to the target object by means of the communication port, and receiving a response from the target object; when the target object agrees to participate in a call, respectively looking up communication parameters corresponding to the calling object and the target object, establishing a media channel between the calling object and the target object on the basis of the communication parameters, such that the calling object and the target object may transmit media data in real time at a preset rate by means of the media channel. The present invention may effectively reduce power consumption for maintaining a call, and provide a smooth and timely mobile calling experience.

Description

Method and system for wireless calling

Technical field

The present invention relates to the field of communications, and more particularly to a method and system for wireless calling.

Background technique

As one of the basic needs of human beings, communication, its timeliness and the integrity of information are always the criteria for people to evaluate the advantages and disadvantages of various communication modes. On this basis, people also hope that the communication mode can be as convenient and easy as possible.

In the traditional communication mode, for example, communication through a fixed or mobile phone, direct communication between the calling party and the called party can be realized under the premise of ensuring that the communication network signal is good, and the response and feedback are very timely. However, before the call is established, the calling party needs to dial multiple number keys to input the called party's telephone number, and needs to wait for a certain time interval until the called party answers the call. If the other party is talking on the phone and does not know when it is possible to talk, the caller has nothing to do but wait. Although this full-duplex communication mode can provide instant voice communication after the call is established, a relatively smooth instant communication is realized between the calling party and the called party, but establishing a call often requires a long waiting time, and Once it is not possible to connect, there is no way to communicate information through this communication mode.

In order to simplify the communication operation procedure and shorten the waiting time for establishing a connection, another half-duplex communication method, such as a wireless walkie-talkie, is also favored by people. Among them, the calling party can hold the call button to collect the voice. When the call button is released, the collected voice data will be sent to any receiver device with the same communication frequency through the set radio frequency. In this communication mode, the calling party can realize the collection and transmission of the calling data only by a simple operation, and does not need to wait for the called party to answer, which has better operation convenience. However, since the calling party and the called party have no way of knowing when the other party starts to communicate, and the limited standby time of the conventional intercom device makes it impossible to keep the power on state, the communication method is only applicable to the limited time period when both parties confirm the opening. This makes the communication method impossible to call at any time, and this communication mode is also limited by radio frequency resources and distance. In addition, this type of communication requires additional equipment, such as walkie-talkies, to increase the cost threshold for use.

With the rapid development of computer technology, network technology and communication technology, the application field of the network has been continuously expanded. People began to try to use the network resources and technology to provide wireless intercom services. Chinese Patent Application No. CN201410158859.5, entitled "Intercom Method, Apparatus, Apparatus and System" discloses a technical solution for transmitting and receiving intercom data through a wireless network. Referring to FIG. 1, the technical solution controls the microphone according to the operation of the intercom button detected in the user interface 3. The wind records the intercom data, and then sends the intercom data and the receiver identifier to the intercom server 2 through the wireless network through the transmitter, and the companion server 2 forwards the intercom data to the at least one receiver pair corresponding to the receiver identifier through the wireless network. Speaking device 6. Specifically, the intercom data may be forwarded to the third party communication server 5 via the third party communication server 5 or via the interface server 4, and further transmitted to the receiver intercom device 6.

However, in this prior art solution, the intercom data needs to be recorded before being transmitted. Due to the limited size of the cache capacity, the recording duration of the intercom data is also limited, making the user experience of the intercom call poor.

In view of the above situation, it is necessary to provide a mobile call mechanism that requires less buffering, is responsive, and is easy to operate.

Summary of the invention

The technical problem to be solved by the present invention is to provide a mobile call mechanism with small cache requirement, timely response, and simple operation.

In order to achieve the above object, the present invention provides a method for wireless calling, according to some aspects of the present invention, comprising: receiving a call request from a calling party when a call request is detected; and receiving a call Requesting analysis, extracting an identifier of the target object, searching for a communication port corresponding to the target object according to the identifier; forwarding the received call request to the target object through the communication port, and receiving a response of the target object; When the target object agrees to make a call, it searches for communication parameters corresponding to the calling object and the target object respectively, and establishes a media channel between the calling object and the target object according to the communication parameters, so that the calling party The object and the target object transmit media data in real time at the set rate through the media channel.

According to still further aspects of the present invention, there is also provided a system for wireless calling, comprising: one or more terminal devices adapted to transmit communication parameters describing communication capabilities to complete registration, to send a call request or to agree to a call The requested instruction, and real-time data interaction with another terminal device through the media channel; the intermediate device is adapted to communicate with at least two terminal devices, and establish the media channel between the at least two terminal devices of the connected device.

Compared with the prior art, various embodiments of the present invention record and store the communication parameters of the terminal device connected thereto in the form of a registry at the S end of the intermediate device through the registration mechanism, each time the terminal device and the middle device When a device establishes a connection, it only needs to allocate a corresponding communication port and establish an association between its corresponding identifier and the communication port, thereby improving communication efficiency. In addition, before the terminal device is disconnected, the terminal device only needs to maintain the communication with the intermediate device by periodically transmitting the keep-alive signal of the minimum byte, thereby reducing the communication cost of maintaining communication for a long time. Moreover, using a lightweight transmission signal as a request signal for establishing a media channel, effectively reducing the power consumption of maintaining the call, by establishing The media channel enables real-time conversation between one or more terminal devices in the form of a similar call, which changes the call transmission mode of recording and forwarding in the prior art, and provides a smooth and timely mobile call experience.

DRAWINGS

FIG. 1 is a schematic block diagram of a system for implementing intercom using network technology in the prior art.

2 is a schematic block diagram of an embodiment of a system wireless calling system of the present invention.

3 is a schematic flow chart of an embodiment of a wireless calling method according to the present invention.

4 is a schematic diagram of signal transmission of a specific embodiment of the wireless calling method of the present invention.

FIG. 5 is a schematic diagram of a data structure of a registry in an embodiment of a wireless calling method according to the present invention.

6 is a schematic diagram of signal transmission of another embodiment of the wireless calling method of the present invention.

7 to 10 are schematic flowcharts of different embodiments of a wireless calling method according to the present invention.

detailed description

The present disclosure will be described more fully hereinafter with reference to the accompanying drawings in which FIG. However, these embodiments can be implemented in many different forms and should not be construed as being limited to the embodiments described herein. Rather, the examples are provided so that this disclosure will be thorough and complete, and the scope of the disclosure will be apparent to those skilled in the art.

The flowchart and block diagrams in the Figures illustrate the system architecture, functionality and operation of possible implementations of apparatus, methods, and computer program products according to various embodiments of the invention. In this regard, each block of the flowchart or block diagram can represent a module, a program segment, or a portion of code, the module, the program segment, or a portion of code comprising one or more Functional executable instructions. It should also be noted that in some alternative implementations, the functions noted in the blocks may also occur in a different order than that illustrated in the drawings. For example, two successively represented blocks may in fact be executed substantially in parallel, and they may sometimes be executed in the reverse order, depending upon the functionality involved. It is also noted that each block of the block diagrams and/or flowcharts, and combinations of blocks in the block diagrams and/or flowcharts, can be implemented in a dedicated hardware-based system that performs the specified function or operation. Or it can be implemented by a combination of dedicated hardware and computer instructions.

The term "mobile terminal" as used herein is intended to cover any suitable type of electronic device that supports initiating or receiving a call, including various mobile communication devices, various non-mobile communication devices, or combinations thereof. Mobile communication devices, such as mobile electronic communication terminals (such as mobile phones), mobile computers, mobile phones, portable data communication devices, portable web browsers, portable gaming devices, portable digital cameras/camcorders, portable audio/video players, portable radio reception Machine, portable digital video recorder, positioning device with communication function, wearable device with communication function, but not limited to this.

The term "intermediate device" is suitable for describing devices with certain processing, data storage, and network interconnection, and may include non-x86 servers such as mainframes, minicomputers, and UNIX servers, as well as other x86 servers.

2 illustrates a wireless call system 100 provided in accordance with certain aspects of the present disclosure, wherein system 100 can include one or more terminal devices 110 for transmitting communication parameters describing communication capabilities to intermediate device 120 And completing the registration, and completing the media data transmission by using the media channel established by the intermediate device 120 by sending the call request or the instruction for agreeing to the call request to the intermediate device 120; and the intermediate device 120, configured to respectively communicate with the at least two terminal devices 110, and transmit The call request between the terminal devices 110 establishes a media channel between the at least two terminal devices 110, so that the connected terminal devices 110 can perform data interaction through the media channel to implement media data transmission.

The terminal device 110 transmits a communication parameter for describing its communication capability to the intermediate device 120, performs registration on the intermediate device 120, acquires a communication port of the signaling channel, and through the assigned communication port, the terminal device 110 and the intermediate device 120 Signaling transmission, sending or responding to a call request. The terminal device 110 periodically transmits a survival signal to the intermediate device 120 until the connection with the intermediate device 120 is disconnected. According to some embodiments, the terminal device 120 can establish a connection with the intermediate device 110 via the TCP/IP protocol, or the SIP protocol.

After receiving the communication parameters of the terminal device 110, the intermediate device 120 allocates a communication port of the signaling channel, and establishes and saves the association between the communication parameters of the terminal device 110 and the communication port, implements registration of the terminal device 110, and passes the The associated communication port performs signaling transmission with the terminal device 110. The intermediate device 120 establishes a media channel for at least two terminal devices 110, enabling the terminal device 110 to implement real-time communication through the media channel. The intermediate device 120 monitors whether the terminal device 110 is alive, and when it receives the survival signal from the terminal device 110, updates its corresponding registration information; when it detects that a terminal device is no longer alive, only the terminal device that is no longer alive is deleted. The corresponding communication port and the associated information of the communication port and its identifier do not affect other terminal devices that are in a surviving state; and only when another terminal device detects that a call request is made to the terminal device that is no longer alive, The information that the terminal device is not currently online.

The intermediate device 120 can further include one or more processors 121 that perform data interactions, and one or more databases 122 that store data. Preferably, the one or more processors and one or more databases may be disposed on the mobile terminal, may be disposed in the cloud, or may be configured by a portion disposed in the mobile terminal and a portion disposed in the cloud. The mobile terminal 110 can communicate with the processor and the database.

Referring to FIG. 3 to FIG. 10, in accordance with some embodiments of the present invention, a wireless calling method is provided, including:

Step S110, when it is detected that there is a call request, receiving the call request from the terminal device.

In a specific embodiment, referring to FIG. 4, a calling object, such as terminal device A, sends a call request to the intermediate device S. For example, the terminal device A can establish a connection with the intermediate device S by using the TCP/IP protocol; after the handshake is successful, a TCP channel is established between the terminal device A and the terminal device S. Specifically, establishing a TCP channel may include: The standby device S allocates a communication port aa for transmitting signaling for the terminal device A, and receives a call request from the terminal device A or transmits other signaling through the communication port aa, that is, the TCP channel is used as a signaling channel.

According to some embodiments of the present invention, in order to reduce the occupation of communication resources and improve communication efficiency, a registration mechanism may be employed to notify the intermediate device S of the communication parameters related to the communication capabilities of the terminal device in advance of the communication. For example, with the establishment of a TCP channel, the terminal device A may describe communication parameters of its communication capability, for example, the device model, codec, operating system, communication network, version number, channel number, and other communication parameters of the terminal device A. And sent to the intermediate device S, the intermediate device S allocates a corresponding communication port and marks the terminal device with the corresponding identification information, and completes the registration of the terminal device A. Referring to FIG. 5, the intermediate device S saves the communication parameters of the respective terminal devices connected thereto to form a registry.

Step S120: The intermediate device S analyzes the received call request, extracts an identifier of the target object, and searches for a communication port corresponding to the target object according to the identifier.

The call request may include identification information of the calling object, that is, identification information of the terminal device A, and a request signal. When the terminal device A has been registered in the intermediate device S, the terminal device A sends its tag information and the request signal to the intermediate device S, and the intermediate device S obtains its corresponding communication from the registry according to the tag information of the terminal device A. The parameter, and the identification information of the target object to be communicated, for example, the terminal device B, is obtained from the request signal, and the communication parameter corresponding to the terminal device B is obtained from the registry according to the identification information of the target object.

Step S130, the intermediate device S forwards the received call request to the target object through the communication port corresponding to the target object, and receives a response from the target object. When the target object is busy or refuses to make a call, referring to FIG. 6, the target object returns a busy signal to the intermediate device S, and the intermediate device S rejects the call request of the calling object according to the busy signal.

When the target object agrees to make a call, it proceeds to step S140. In step S140, referring to FIG. 4, after the intermediate device S receives the consent signal from the target object, the communication parameters corresponding to the calling object and the target object are searched in the registry, and the calling object is based on the communication parameters. Establishing a media channel with the target object, so that the calling object and the target object perform real-time interaction of media data through the media channel.

In a specific implementation, the intermediate device S sends an SSDP signal to the calling object and the target object through the signaling channel, and transmits the media data through the SSDP protocol. For example, when the terminal device A issues a call request, it sends an "ssdp:discover" message to the SSDP port of the specific multicast address using the M-SEARCH method, and the intermediate device S listens to the reserved multicast address on the terminal device. When A sends a message requesting a call, it analyzes the service requested by the terminal device A and responds to the request. For example, the media data from the terminal device A is delivered to the terminal device B.

In another embodiment, in order to make the call as light as possible, reduce the data required for transmission and analysis, speed up the data transmission, and reduce the standby power consumption, a lightweight transmission signal can also be used as the Establish media The request signal of the channel is sent by the intermediate device S to the terminal device A and the terminal device B, respectively. The filtering of the lightweight transmission signal may include parameters such as an audio stream, an IP port, an encoding mode, and a sampling rate, so that the standby power consumption is reduced as much as possible, and the data transmission rate is accelerated. .

After the media channel is established, the media data sent via the terminal device A is transmitted to the terminal object B in real time through the media channel at a set rate, for example, 50 times/second, without being recorded and then uploaded to the server, and then via the terminal device. B downloads and plays, thereby eliminating the limitation of the size or duration of the media data to be transmitted in the prior art, so that the two parties of the call, that is, the terminal device A and the terminal device B, can perform real-time communication in a form similar to a call. Greatly improved the call experience of mobile calls.

With reference to FIG. 7, step S140 may further include, in step S141, the calling object or the target object performs processing on the media data. For example, the terminal device A as the calling party splits and compresses the voice data before transmitting the voice data at the set transmission rate to ensure the smoothness of the data transmission. For another example, after the target terminal device B receives the transmitted voice data, it decompresses and restores it.

According to some embodiments of the present invention, the intermediate device S can obtain the communication parameters of the calling object and the target object according to the communication parameters of the calling object and the target object, for example, acquiring the operating system of the terminal device A as the calling object is ios8. And the G729 encoder, and the operating system Andriod L and iLBC encoder of the terminal device B as the called object. Referring to FIG. 8, step S140 further includes, in step S142, the intermediate device S transcodes the data communicated by the two parties according to the communication parameters of the calling object and the target object.

Referring to FIG. 9, when the calling object and the target object perform real-time interaction of the media data through the media channel, the method further includes step S150, and the intermediate device S detects whether the terminal device maintains the connected state. According to some embodiments of the present invention, when the terminal device A/B maintains the connected state, the keepalive signal is periodically sent to the intermediate device S, and when the intermediate device S receives the keep-alive signal, the registration information for the terminal device A/B is received. Update. Specifically, step S150 may include: step S151, detecting whether a keep-alive signal is received within the set time T1; when receiving the keep-alive signal, the original timing is cleared and returns to step S151 to restart the detection; When the keep-alive signal is not received, step S160 is performed.

In a specific implementation, when the terminal device A or the terminal device B performs data communication by using the SSDP protocol, it sends a "ssdp: alive" message to the SSDP port of the specific multicast address by using the NOTIFY method, and the intermediate device S listens to the message. Message; considering that the terminal device may stop the service or uninstall from the network without notification, the "ssdp:alive" message must specify the timeout value in the HTTP protocol header CACHE-CONTROL, and the terminal device must arrive at the agreed timeout value. The "ssdp:alive" message is retransmitted in the past. If the intermediate device S does not receive the "ssdp:alive" message sent by the terminal device A or the terminal device B within the specified timeout value, the intermediate device S will consider the terminal device A or Terminal device B has been disconnected.

According to some embodiments of the present invention, when the terminal device A is disconnected, step S160 is performed, and the intermediate device S deletes its corresponding registration information from the registry, for example, deletes the corresponding communication port and deletes the used for marking. Identification information of the terminal device, and the like. However, unlike the prior art, the intermediate device S does not notify the disconnection event of the terminal device A to other terminal devices that have communicated with the terminal device A, and still maintains a normal connection with other terminal devices. When another terminal device, for example, the terminal device B or C, issues a call request, and the target object of the call request is the terminal device A, the intermediate device S feeds back the reply information that cannot be delivered to the terminal device B or C. The query-feedback mechanism is used for the disconnection event without broadcasting, which can improve the utilization of resources, reduce unnecessary interference to users, and improve the calling experience.

The above is only for convenience of description. The terminal device A is used as the calling object of the communication and the terminal device B is the target of communication. However, those skilled in the art should understand that the roles of the terminal device A and the terminal device B can be interchanged, that is, the terminal. Device B can serve as a calling object for communication, and terminal device A can also serve as a target for communication. The terminal device A or the terminal device B may each include one or more electronic devices that support initiating or receiving the mobile call.

In the foregoing embodiment, the communication parameter of the terminal device connected thereto is recorded and saved in the form of a registry in the form of a registry by the registration mechanism, and each time the terminal device establishes a connection with the intermediate device, only It can allocate the corresponding communication port and establish the association between its corresponding identifier and the communication port, which improves the communication efficiency. In addition, before the terminal device is disconnected, the terminal device only needs to maintain the communication with the intermediate device by periodically transmitting the keep-alive signal of the minimum byte, thereby reducing the communication cost of maintaining communication for a long time. Moreover, the use of the lightweight transmission signal as a request signal for establishing a media channel effectively reduces the power consumption of the call, and establishes a media channel, enabling one or more terminal devices to make a real-time call in a form similar to a call. It changes the call transmission mode of recording and forwarding in the prior art, and provides a smooth and timely mobile call experience.

Referring to FIG. 10, the wireless calling method further includes a pre-processing step adapted to perform registration of the terminal device 110 at the intermediate device 120, in accordance with some embodiments of the present invention. The terminal device 110 sends a communication parameter for describing its communication capability to the intermediate device 120, and after the intermediate device 120 saves it, it allocates a communication port of the corresponding signaling channel.

In a specific implementation, the pre-processing step may be triggered according to the network condition of the terminal device, for example, when the terminal device is connected to wifi or 3G/4G/LTE, the registration of the terminal device is triggered. In another specific implementation manner, it may also be triggered according to a specific operation of the user in the terminal device, for example, when the user activates the mobile calling software through the terminal device, triggering registration of the terminal device.

The teachings of the present invention may also be embodied as a computer program product of a computer readable storage medium, comprising computer program code which, when executed by a processor, enables a processor to be in accordance with a method of an embodiment of the present invention To achieve the push of service information. The computer storage medium can be any tangible medium such as a floppy disk, CD-ROM, DVD, hard drive, or even network media.

The description of the present invention has been presented for purposes of illustration and description, and is not intended to Numerous modifications and variations will be apparent to those skilled in the art after reading this disclosure. The various embodiments described above can be used alone or in various combinations unless the context clearly dictates otherwise. Those skilled in the art will appreciate that the methods and apparatus in the embodiments of the present invention can be implemented in software, hardware, firmware, or a combination thereof.

Therefore, the embodiments are chosen and described in order to explain the principles of the invention, the invention, and the All modifications and substitutions are intended to fall within the scope of the invention as defined by the appended claims.

Claims

A method for mobile calling, comprising:

Receiving the call request from the calling party when detecting that there is a call request;

The received call request is analyzed, the identifier of the target object is extracted, and the communication port corresponding to the target object is searched according to the identifier;

Transmitting the received call request to the target object through the communication port, and receiving a response of the target object; when the target object agrees to make a call, searching for communication parameters corresponding to the calling object and the target object respectively, and According to the communication parameters, a media channel is established between the calling object and the target object, so that the calling object and the target object transmit media data in real time through the media channel at a set rate.
The method of claim 1 further comprising: establishing a TCP channel with said calling or called object and receiving communication parameters from said calling object or said called object .
The method of claim 2, further comprising: saving communication parameters of the connected respective terminal devices to establish a registry.
The method of claim 3, further comprising: deleting the corresponding registration information from the registry when the terminal device is disconnected, and if and only if the target object is received as the terminal device When the call is requested, the caller who sent the call request is fed back the undeliverable reply message.
The method of claim 2, further comprising: triggering the terminal device to transmit the communication parameter according to a network condition to implement registration.
The method of claim 2 wherein said communication parameters comprise a device model of the terminal device, a codec, an operating system, a communication network.
The method of claim 1, wherein the establishing a media channel between the calling object and the target object according to the communication parameter comprises: transmitting a lightweight transmission signal to the calling object and the target object, respectively To request to establish a media channel.
The method of claim 1 further comprising: transcoding the media data from the calling object based on the communication parameters of the target object, and transcoding the number It is sent to the target object.
A system for mobile calling, comprising:

One or more terminal devices adapted to transmit communication parameters describing communication capabilities to complete registration,

An instruction to send a call request or agree to a call request, and perform real-time data interaction with another terminal device through a media channel;

And an intermediate device, configured to connect at least two terminal devices, and establish the media channel between the at least two terminal devices that are connected.
The system according to claim 9, wherein said intermediate device further comprises: establishing a TCP channel with a terminal device as a calling or called object, receiving from said calling object or said Call the communication parameters of the object.
The system of claim 9, wherein the intermediate device further comprises: saving communication parameters of the connected respective terminal devices to form a registry.
The system according to claim 11, wherein said terminal device is triggered to transmit said communication parameter to said intermediate device according to a network condition.
The system according to claim 9, wherein when the first terminal device disconnects, the intermediate device deletes its corresponding registration information from the registry, and if and only if the target object is received When the first terminal device requests a call, the intermediate device feeds back the reply information that cannot be delivered to the second terminal device that sends the call request.
The system of claim 9, wherein the intermediate device further comprises: transmitting a lightweight transmission signal to the terminal device as the calling object and the target object, respectively, to request to establish a media channel.
The system according to claim 9, wherein the intermediate device further comprises: after establishing the media channel, receiving data of one of the terminal devices, according to the received data of the decoder of the other end terminal device Transcode and transcode the data to the terminal device at the other end.