WO2017215101A1

WO2017215101A1 - Method and device for video calling, and mobile terminal

Info

Publication number: WO2017215101A1
Application number: PCT/CN2016/094392
Authority: WO
Inventors: 孙东平
Original assignee: 中兴通讯股份有限公司
Priority date: 2016-06-12
Filing date: 2016-08-10
Publication date: 2017-12-21
Also published as: CN107493449A

Abstract

A method and device for video calling, and a mobile terminal. The method comprises: when a mobile terminal is connected to a power line, searching for another mobile terminal connected to a power line of a same electricity meter to which the power line is connected; networking and establishing a video call network with the other mobile terminal found; during a video call, modulating a video signal captured by the present mobile terminal to produce a modulated signal; and transmitting the modulated signal to the other mobile terminal in the video call network via the power lines. The technical solution employing embodiments of the present invention builds the video call network established via the power lines by the mobile terminals connected to the power lines of same electricity meter, forms a small local area network for the transmission of the video signal, and implements video calling, thus solving the problem in the prior art in which video calling cannot be performed at places having no GPRS network or Wi-Fi network coverage.

Description

Video call method, device and mobile terminal

Technical field

This document relates to but not limited to the field of communication technologies, and relates to a video call method, device and mobile terminal.

Background technique

With the development of communication technology, smart terminals have become an indispensable communication tool in people's daily lives. Among them, the video call function in the smart terminal is the basic function of people to communicate and communicate.

In the prior art, communication between smart terminals (such as mobile phones, ipads, etc. in mobile terminals) is mainly implemented based on a General Packet Radio Service (GPRS) network and a Wireless Fidelity (WIFI) network. Once the smart terminal enters a place where the GPRS network or WIFI network coverage has not been implemented, communication between the smart terminals cannot be achieved.

Summary of the invention

The following is an overview of the topics detailed in this document. This Summary is not intended to limit the scope of the claims.

The embodiment of the invention provides a video call method, device and mobile terminal, which solves the problem that the related technology cannot realize communication in a place without a GPRS network or a WIFI network coverage.

An embodiment of the present invention provides a video call method, where the method includes:

When the mobile terminal is connected to the power line, searching for other mobile terminals connected to the power line under the electricity meter connected to the power line;

Establishing a video call network with other searched mobile terminals;

During the video call, the video signal collected by the mobile terminal is modulated to generate a modulated signal;

The modulated signal is transmitted over the power line to other mobile terminals in the video call network.

Optionally, the establishing a video call network, the package, with the other mobile terminals that are searched include:

Displaying a phone number of the other mobile terminal that is searched for, so that the user selects a mobile terminal that needs to establish a video call network;

The video call network is constructed with the selected mobile terminal.

Optionally, performing modulation processing on the video signal collected by the mobile terminal to generate a modulated signal includes:

Performing an encoding process on the video signal to generate a signal to be modulated;

The signal to be modulated and the carrier signal are adjusted to generate the modulated signal.

Optionally, the method further includes: receiving, during the video call, a modulation signal sent by another mobile terminal of the video call network by using the power line;

Performing demodulation processing on the received modulated signal to obtain a control signal and/or a video signal;

The demodulated control signal and/or video signal is decoded.

The embodiment of the invention further provides a video communication device, the device comprising:

a search unit configured to search for other mobile terminals connected to the power line under the power meter connected to the power line when the mobile terminal is connected to the power line;

The networking unit is configured to establish a video call network with other searched mobile terminals;

The processing unit is configured to perform modulation processing on the video signal collected by the mobile terminal during the video call to generate a modulation signal;

And a communication unit configured to transmit the modulated signal to the other mobile terminals in the video call network through the power line.

Optionally, the networking unit includes:

a display module, configured to display a phone number of the searched other mobile terminal, so that the user selects a mobile terminal that needs to establish a video call network;

The building module is configured to set up the video call network with the selected mobile terminal.

Optionally, the processing unit includes:

The baseband processing module is configured to perform encoding processing on the video signal collected by the mobile terminal to generate a signal to be modulated during a video call;

The modem module is configured to adjust the signal to be modulated and the carrier signal to generate a modulated signal.

Optionally, the device further includes:

a receiving unit, configured to receive, during a video call, a modulation signal sent by another mobile terminal of the video call network through the power line;

a modulation processing unit configured to perform demodulation processing on the received modulated signal to obtain a control signal and/or a video signal;

The decoding processing unit is configured to perform decoding processing on the demodulated control signal and/or video signal.

An embodiment of the present invention further provides a mobile terminal, where the mobile terminal includes the video communication device according to any one of the preceding claims.

Optionally, the mobile terminal further includes:

a charging unit configured to charge the mobile terminal;

A power line interface configured to connect the charging unit to a power line.

Optionally, the communication unit, the modem module, and the modulation processing unit of the video communication device are integrated on the charging module.

The video call method, device and mobile terminal of the embodiment of the present invention establish a video call network by using a power line connected to a power line connected to the same power meter to form a small local area network for video signal transmission. The realization of the video call solves the defect that the video call cannot be performed in the relevant technology without the coverage of the GPRS network or the WIFI network.

The embodiment of the invention further provides a computer readable storage medium, wherein the computer readable storage medium stores computer executable instructions, and the method for implementing a video call when the computer executable instructions are executed.

Other aspects will be apparent upon reading and understanding the drawings and detailed description.

DRAWINGS

FIG. 1 is a flowchart of a method for video calling according to Embodiment 1 of the present invention;

2 is a flowchart of a method for video calling according to Embodiment 2 of the present invention;

3 is a schematic diagram of a modulation process of step S207 in Embodiment 2 of the present invention;

4 is a schematic diagram of a demodulation process of step S209 in Embodiment 2 of the present invention;

FIG. 5 is a schematic structural diagram of a module of a video communication device according to Embodiment 3 of the present invention; FIG.

FIG. 6 is a schematic structural diagram of a module of a mobile terminal according to Embodiment 4 of the present invention.

detailed description

The present application will be described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the application and are not intended to be limiting.

A video call method is provided in Embodiment 1 of the present invention. Referring to FIG. 1, the method process includes:

Step S101: When the mobile terminal is connected to the power line, search for other mobile terminals connected to the power line under the electricity meter that is connected to the power line;

Step S102: Establish a video call network by establishing networking with other searched mobile terminals.

Step S103: Perform modulation processing on the video signal collected by the mobile terminal to generate a modulated signal during the video call;

Step S104: The modulated signal is sent to other mobile terminals in the video call network through the power line.

In this embodiment, Power Line Communication (PLC), as a basic means of transmitting information in a power system, utilizes a high-voltage power line (generally referred to as a voltage level of 35 kV (kV) or higher in the field of power carrier), Medium voltage power line (referring to 10kV voltage level) or low voltage distribution line (380/220V subscriber line) as a special communication method for voice or data transmission of information transmission medium. Therefore, power line communication is adopted even if there is no GPRS network or WIFI. The network coverage can also realize video communication between intelligent terminals.

In an optional solution, the establishing a video call network by establishing network with other searched mobile terminals includes:

Display the phone number of the searched mobile terminal, so that the user can select a video to be created Mobile terminal of the call network;

The video call network is constructed with the selected mobile terminal.

In an optional solution, the video signal collected by the mobile terminal is modulated to generate a modulated signal, including:

Encoding the video signal collected by the mobile terminal to generate a signal to be modulated;

The signal to be modulated and the carrier signal are adjusted to generate a modulated signal.

In an optional solution, the method further includes: during the video call,

Receiving a modulated signal transmitted by another mobile terminal of the video call network;

Demodulating the received signal to obtain a control signal and/or a video signal;

The demodulated control signal and/or video signal is decoded.

In the video calling method of the embodiment of the present invention, a mobile terminal connected to a power line under the same meter establishes a video call network through power line communication, forms a small local area network, performs video signal transmission, realizes video call, and solves related technologies. The defect of video call cannot be made in the place where there is no GPRS network or WIFI network coverage. At the same time, since the video communication does not depend on the GPRS network or the WIFI network, the communication cost is low, and the networking is simple, and only the mobile terminal needs to be connected to the power line.

Embodiment 2

On the basis of the foregoing embodiment, the second embodiment of the present invention provides a video call method. Referring to FIG. 2, the method includes:

Step S201: When the primary device accesses the power line and the user starts the client of the video call, searching for other slave devices connected to the power meter connected to the power line;

In practical applications, the client mainly provides a user-machine exchange interface for the user to operate.

Step S202: The master device sends a request for a video call to the searched slave device in a broadcast manner;

Step S203: The master device acquires and displays the phone number fed back by the searched other slave devices.

Specifically, the master device can identify the device identifier (ID) of the mobile terminal corresponding to the different phone number.

Step S204: The master device selects the specified slave device according to the operation of the user.

Specifically, the user can select at least one slave device to make a video call according to the phone number displayed by the master device. That is to say, in the process of selection, the determination of the slave device is distinguished by the mobile phone number.

Step S205: The master device sends a networking command to the specified slave device.

Specifically, the networking command may carry the ID of the slave device, and send the networking command to the corresponding slave device through the ID.

Step S206: The master device and the slave device network that feeds back the agreed network signal establish a video call network.

Once a video call network is established, one-to-one or one-to-many video calls can be made.

Step S207: The master device performs the modulation processing on the collected video signal and the control signal, and sends the video signal to the slave device in the video call network through the power line;

Specifically, the process of modulation processing is shown in Figure 3. In the modulation processing, the control signal and the video signal are first encoded by the baseband processor to generate a signal to be modulated; then the modulated signal and the carrier signal are modulated to generate a modulated signal, and then the modulated signal is transmitted through the power line.

In practical applications, the control signal includes a command signal. Step S208: The master device receives the modulated signal sent by the slave device.

Step S209, the master device performs demodulation processing on the modulated signal to obtain a video signal and a control signal;

Specifically, the process of demodulation processing is shown in FIG. 4. The master device demodulates the modulated signal to obtain the demodulated video signal and the control signal; the baseband processor of the master device decodes the demodulated video signal and the control signal to obtain the original video signal and the control signal.

Step S210: The main device plays the video signal obtained after the demodulation process.

The technical solution of this embodiment is further described below in conjunction with specific scenarios.

Take the scenario of videoconferencing through power line communication for three users (A, B, C) on different floors of the same building as an example. After the three users' mobile phones and power lines are connected, they need to open the video call client on their mobile phones. At this time, the client on each mobile phone will display its mobile phone number and other mobile phones connected to the power line under the same meter. Number, such as A's mobile number Code 15888888888, B's mobile number 15000000000, C's mobile number 15166666666, the originator of the video conference can choose the B and C numbers, send an invitation. With user A as the initiator, A's mobile phone is the master device, and B and C's mobile phones are the slave devices. After waiting for B and C to agree, you can have a video conference. After the video conference ends, ABC can choose to close the client. It should be noted that in order to realize power line communication, the power lines connected to the mobile phones of the three users should be the power lines under the same meter.

In the video calling method of the embodiment, the mobile terminal connected to the power line under the same meter establishes a video call network through power line communication, forms a small local area network, performs video signal transmission, realizes video call, and solves related technologies. The problem of video calls cannot be made in places where there is no GPRS network or WIFI network coverage. At the same time, since the video communication does not depend on the GPRS network or the WIFI network, the communication cost is low, and the networking is simple, and only the mobile terminal needs to be connected to the power line.

Embodiment 3

A third embodiment of the present invention provides a video calling device. Referring to FIG. 5, the device includes:

The searching unit 501 is configured to search for other mobile terminals connected to the power line under the power meter connected to the power line when the mobile terminal is connected to the power line;

The networking unit 502 is configured to establish a video call network with other searched mobile terminals;

The processing unit 503 is configured to perform modulation processing on the video signal collected by the mobile terminal during the video call to generate a modulation signal.

The communication unit 504 is configured to transmit the modulated signal to the other mobile terminals in the video call network through the power line.

In an optional solution, the networking unit 502 includes:

The building module is configured to set up the video calling network with the selected mobile terminal.

In actual applications, the setup module can send a video call request by broadcast. The display module can display the local phone number and the searched mobile terminal's phone number.

When the terminal reads the phone numbers of other terminals, it can also identify the device IDs of other terminals.

In actual application, the networking module is further configured to select a specified slave device according to the operation of the user, and send a networking command to the specified slave device. Specifically, the networking command may carry the ID of the slave device, and send the networking command to the corresponding slave device through the ID.

In an optional solution, the processing unit 503 includes:

In an optional aspect, the apparatus further includes:

a receiving unit, configured to receive, during a video call, a modulated signal sent by another mobile terminal of the video call network through the power line;

a modulation processing unit configured to perform demodulation processing on the received signal to obtain a control signal and/or a video signal;

In the video communication device of the embodiment, the mobile terminal connected to the power line under the same electric meter establishes a video call network through power line communication, forms a small local area network, performs video signal transmission, realizes video call, and solves related technologies. The problem of video calls cannot be made in places where there is no GPRS network or WIFI network coverage. At the same time, since the device realizes video communication without relying on the GPRS network or the WIFI network, the communication cost is low, and at the same time, the networking is simple, and only the mobile terminal needs to be connected to the power line.

Embodiment 4

A fourth embodiment of the present invention provides a mobile terminal. Referring to FIG. 6, the mobile terminal includes: a video call device 601. Optionally, the mobile terminal further includes a charging device 602 and a power line interface 603.

The video communication device 601 can adopt any of the video communication devices in the third embodiment, and details are not described herein again.

A charging device 602 is provided to charge the mobile terminal.

The power line interface 603 is configured to connect the charging unit 602 with a power line.

In an optional solution, the communication unit, the modem module and the modulation processing unit of the video communication device are integrated on the charging module.

Integrating the charger into the mobile terminal can solve the problem of forgetting to bring the mobile phone charger.

In an alternative, the mobile terminal can be implemented in a variety of forms. For example, the terminals described in this application may include, for example, mobile phones, smart phones, notebook computers, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Tablets), PMPs (Portable Multimedia Players), navigation devices, and the like. Mobile terminals and fixed terminals such as digital TVs, desktop computers, and the like.

The mobile terminal of this embodiment may further include:

The A/V (Audio/Video) input unit is connected to the video communication device 601. The A/V input unit can include a camera and a microphone configured to obtain an audio or video signal. A control component is arranged to control the overall operation of the mobile terminal, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations.

A memory, arranged to store multiple types of data to support operation at the mobile terminal.

The power component charging unit 603 is connected and arranged to provide power for each component of the mobile terminal.

The screen may include a liquid crystal display (LCD) and a touch panel (TP) to provide a user interface for the user.

A communication component configured to facilitate wired or wireless communication between the mobile terminal and other devices, which can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component includes a near field communication (NFC) module to facilitate short range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

The mobile terminal of this embodiment is provided with a video communication device capable of transmitting power under the same electric meter The line-connected mobile terminal establishes a video call network through power line communication, forms a small local area network, performs video signal transmission, realizes video call, and solves the problem that the video call cannot be performed in the place where no GPRS network or WIFI network is covered in the related technology. The problem.

The embodiment of the invention further provides a computer readable storage medium, wherein the computer readable storage medium stores computer executable instructions, and the computer executable instructions are implemented to implement a video call method. It should be noted that the foregoing device embodiment and the method embodiment are in the same concept, and the specific implementation process is shown in the method embodiment, and the technical features in the method embodiment are applicable in the device embodiment, and details are not described herein again.

The embodiments of the present application have been described above with reference to the accompanying drawings, and are not intended to limit the scope of the application. Any modifications, equivalent substitutions and improvements made by those skilled in the art without departing from the scope and spirit of the invention are intended to be included within the scope of the invention. One of ordinary skill in the art will appreciate that all or a portion of the above steps may be performed by a program to instruct related hardware, such as a processor, which may be stored in a computer readable storage medium, such as a read only memory, disk or optical disk. Wait. Alternatively, all or part of the steps of the above embodiments may also be implemented using one or more integrated circuits. Correspondingly, each module/unit in the above embodiment may be implemented in the form of hardware, for example, by implementing an integrated circuit to implement its corresponding function, or may be implemented in the form of a software function module, for example, executing a program stored in the memory by a processor. / instruction to achieve its corresponding function. This application is not limited to any specific combination of hardware and software. A person skilled in the art should understand that the technical solutions of the present application can be modified or equivalent, without departing from the spirit and scope of the technical solutions of the present application, and should be included in the scope of the claims of the present application.

Industrial applicability

The above technical solution solves the problem that video calls cannot be made in a place without a GPRS network or a WIFI network coverage. At the same time, the technical solution has a simple networking and low communication cost.

Claims

A video calling method, the method comprising:

When the mobile terminal is connected to the power line, searching for other mobile terminals connected to the power line under the electricity meter connected to the power line;

Establishing a video call network with other searched mobile terminals;

During the video call, the video signal collected by the mobile terminal is modulated to generate a modulated signal;

The modulated signal is transmitted over the power line to other mobile terminals in the video call network.
The video call method according to claim 1, wherein the establishing a video call network by establishing the network with the searched other mobile terminals comprises:

Displaying a phone number of the other mobile terminal that is searched for, so that the user selects a mobile terminal that needs to establish a video call network;

The video call network is constructed with the selected mobile terminal.
The video call method according to claim 1 or 2, wherein the modulating the video signal collected by the mobile terminal to generate a modulated signal comprises:

Performing an encoding process on the video signal to generate a signal to be modulated;

The signal to be modulated and the carrier signal are adjusted to generate the modulated signal.
The video call method according to claim 3, the method further comprising: receiving, during the video call, a modulated signal sent by another mobile terminal of the video call network through the power line;

Performing demodulation processing on the received modulated signal to obtain a control signal and/or a video signal;

The demodulated control signal and/or video signal is decoded.
A video communication device, the device comprising:

a search unit configured to search for other mobile terminals connected to the power line under the power meter connected to the power line when the mobile terminal is connected to the power line;

The networking unit is configured to establish a video call network with other searched mobile terminals;

The processing unit is configured to perform modulation processing on the video signal collected by the mobile terminal during the video call to generate a modulation signal;

And a communication unit configured to transmit the modulated signal to the other mobile terminals in the video call network through the power line.
The video call device of claim 5, wherein: said networking unit comprises:

a display module, configured to display a phone number of the searched other mobile terminal, so that the user selects a mobile terminal that needs to establish a video call network;

The building module is configured to set up the video call network with the selected mobile terminal.
The video communication device according to claim 5 or 6, wherein: said processing unit comprises:

The baseband processing module is configured to perform encoding processing on the video signal collected by the mobile terminal to generate a signal to be modulated during a video call;

The modem module is configured to adjust the signal to be modulated and the carrier signal to generate a modulated signal.
The video communication device of claim 7, the device further comprising:

a receiving unit, configured to receive, during a video call, a modulation signal sent by another mobile terminal of the video call network through the power line;

a modulation processing unit configured to perform demodulation processing on the received modulated signal to obtain a control signal and/or a video signal;

The decoding processing unit is configured to perform decoding processing on the demodulated control signal and/or video signal.
A mobile terminal comprising the video call device of any one of claims 5 to 8.
The mobile terminal of claim 9, the mobile terminal further comprising:

a charging unit configured to charge the mobile terminal;

A power line interface configured to connect the charging unit to a power line.
The mobile terminal of claim 10, wherein: the communication unit, the modem module, and the modulation processing unit of the video communication device are integrated on the charging module.