CN1988578A - System and method for providing multimedia communication and household gateway - Google Patents
System and method for providing multimedia communication and household gateway Download PDFInfo
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Abstract
本发明公开了一种提供多媒体通讯业务的系统，该系统包括通信终端、播放设备、多媒体采集设备、家庭网关、接入设备、交换设备、全网智能化平台。本发明还公开了一种提供多媒体通讯业务的方法以及一种家庭网关。本发明并不需要多媒体计算机等操作复杂的设备就可以实现多媒体通讯业务，大大降低了用户操作的难度，使得多媒体通讯业务容易大规模地普及。在本发明的基础上可以进行视频监视、家庭安全控制等多项业务。另外，本发明中的播放设备和多媒体采集设备可以采用现有的电视机和摄像头等价格低廉的设备，这样，本发明不仅能够重复利用电视机等设备，提高这些设备的利用率，还能够降低进行多媒体业务的费用。
The invention discloses a system for providing multimedia communication services. The system includes a communication terminal, a playback device, a multimedia collection device, a home gateway, an access device, a switching device, and an intelligent platform for the entire network. The invention also discloses a method for providing multimedia communication services and a home gateway. The present invention can realize the multimedia communication service without the need of multimedia computer and other complex-operating equipment, greatly reduces the difficulty of user operation, and makes the multimedia communication service easy to popularize on a large scale. On the basis of the invention, multiple services such as video surveillance and family safety control can be performed. In addition, the playback device and the multimedia collection device in the present invention can use existing low-cost equipment such as televisions and cameras, so that the present invention can not only reuse equipment such as televisions, improve the utilization rate of these equipments, but also reduce Fees for conducting multimedia services.
Description
Technical Field
The present invention relates to the field of multimedia communication technologies, and in particular, to a system, a method and a home gateway for providing multimedia communication.
Background
In a Public switched communication Network (PSTN), due to the limitation of Network bandwidth capability, only a few users can be allowed to use video communication services, and it is difficult to popularize the video communication services on a large scale. However, in Next generation networks (Next generation networks), since the network bandwidth capacity is no longer a limitation, it is possible for many users to implement video communication services through the NGN network and specific terminals. Therefore, under the condition that the current NGN network and PSTN network coexist, how to provide the video communication service with simple operation and easy maintenance to the user by using the current PSTN network resource becomes an important technical problem to be solved urgently.
First, a brief description will be given of the existing NGN full-network intelligentization and digital subscriber line (xDSL) broadband access technology.
Fig. 1 is a schematic structural diagram of NGN full-network intelligence.
Referring to fig. 1, the NGN full-network intelligent system includes an NGN full-network intelligent platform, a PSTN switch and a telephone of a user. The NGN full-network intelligent platform comprises a service platform in an intelligent network, a soft switch and a relay Media Gateway (TMG) in an IP bearing network. In practical applications, other signaling devices besides the TMG may also be used for networking, such as a Signaling Gateway (SG), a Signaling Transfer Point (STP), etc.
In the NGN network-wide intelligent architecture shown in fig. 1, when a user initiates a service request through a telephone, the PSTN switch of the end office needs to unconditionally send the service request to the PSTN switch of the tandem office. Then the PSTN exchanger of the tandem office judges whether the intelligent network service needs to be triggered, if not, the intelligent network service is continued according to the normal PSTN service flow, if the intelligent network service needs to be triggered, the service request is triggered to the NGN whole network intelligent platform. The TMG in the NGN whole network intelligent platform sends the service request to the soft switch through the IP bearing network, the soft switch reports the service request to the service platform, and the service platform carries out corresponding processing according to the service request, thereby realizing the intelligent network service. It should be noted that, unlike the call flow in the general PSTN network, the PSTN switch of the end office is required to report all the services to the PSTN switch of the tandem office, and even the call request inside the end office needs to be reported.
Fig. 2 is a schematic diagram of the structure of xDSL broadband access.
In the configuration shown in fig. 2, an operator provides xDSL access devices, such as broadband access device Digital Subscriber Line Access Multiplexers (DSLAMs), including splitters (splitters), in a network using the twisted pair resources of the PSTN network. The user terminal further comprises a home gateway and a multimedia computer, wherein the home gateway comprises a splitter.
In the schematic structural diagram of xDSL broadband access shown in fig. 2, when a user uses a broadband service through a home gateway, the broadband service data is sent to the home gateway, the home gateway sends the broadband service data to an xDSL access device, the xDSL access device distinguishes between the broadband service data and the narrowband service data in the data from the home gateway, sends the broadband service data to an IP bearer network, and sends the narrowband service data to a PSTN switch. On the contrary, when the home gateway receives the data from the xDSL access device, the broadband service data and the narrowband service data are separated, the broadband service data is sent to the multimedia computer, and the narrowband service data is sent to the telephone. The packet broadband data service can be provided for PSTN telephone users through the scheme.
The existing network structure for providing video communication service to PSTN users based on NGN full-network intellectualization and xDSL broadband access is shown in fig. 3.
Referring to fig. 3, a network system for providing a video communication service to PSTN users in the prior art mainly includes an NGN full-network intelligent platform, a PSTN switch, an xDSL access device, a home gateway, a multimedia computer, and a telephone. The NGN full-network intelligent platform comprises a service platform in an intelligent network, a soft switch and a TMG in an IP bearing network. Also, multimedia computers have the ability to transceive audio and video.
In the system shown in fig. 3, a subscriber operates a softphone in a multimedia computer to access an IP bearer network through a home gateway and xDSL access devices. Under the condition that the home Gateway is communicated with the IP bearing network, the software phone is registered to the soft switch through standard protocols such as Session Initiation Protocol (SIP)/H.323/Media Gateway Control Protocol (MGCP) and the like, and becomes a soft terminal under the NGN network. The soft terminal can occupy the number resource of the PSTN network and also can not occupy the number resource of the PSTN network, and the PSTN telephone set on the same twisted pair can be bound with the soft terminal in a certain way, thereby realizing the capability of providing video communication service for PSTN users.
However, the above technical solution can only be realized by means of a multimedia computer, and the popularization and promotion of the service is limited by the popularization degree of the multimedia computer. As is well known, although multimedia computers are widely used in schools and other institutions, most households do not have multimedia computing, but have common home appliances such as televisions, and if one multimedia computer is configured, the multimedia computer needs high cost, which makes the technical solution difficult to popularize. On the other hand, even if the multimedia computer is configured, since the operation and maintenance of the multimedia computer are complicated, it is difficult for many users to smoothly grasp and use the multimedia computer or to utilize other functions of the multimedia computer, which also causes waste of resources and makes the above technical solution difficult to popularize.
Disclosure of Invention
In view of the above, the present invention provides a system for providing multimedia communication services, so as to reduce the operation difficulty of implementing the multimedia communication services. The invention also provides a method for providing the multimedia communication service. In addition, the invention also provides a home gateway.
In one aspect, the present invention provides a system for providing multimedia communication services, the system includes a communication terminal, a playing device, a multimedia collecting device, a home gateway, an access device, a switching device, and a full-network intelligent platform, wherein:
the communication terminal is used for initiating a communication request;
the playing device is used for receiving and playing the multimedia data from the home gateway;
the multimedia acquisition equipment is used for acquiring multimedia data and sending the acquired multimedia data to the home gateway;
the home gateway is used for forwarding the communication request to the access equipment, decoding the multimedia data from the access equipment and sending the decoded multimedia data to the playing equipment, and coding the multimedia data from the multimedia acquisition equipment and sending the coded multimedia data to the access equipment;
the access device is used for sending the communication request to the exchange device, sending the multimedia data from the home gateway to the opposite access device, receiving the multimedia data sent by the opposite access device and forwarding the multimedia data to the home gateway;
the switching equipment is used for triggering the communication request to a whole-network intelligent platform;
and the whole network intelligent platform is used for establishing a multimedia communication channel between the home gateway and the other home gateway according to the communication request.
The whole network intelligent platform is further used for storing data in the communication process.
The whole network intelligent platform comprises a soft switch and a signaling device, wherein: the signaling equipment is used for sending the communication request to the soft switch; the soft switch is used for establishing the multimedia communication channel according to the communication request.
In the above technical solution, the network wide intelligent platform further includes a service platform, and the service platform is configured to instruct a soft switch to establish the multimedia communication path according to the communication request, and/or store data in a communication process.
The home gateway comprises an encoding and decoding unit and an interface unit, wherein: the coding and decoding unit is used for coding the multimedia data from the multimedia acquisition equipment and decoding the multimedia data from the access equipment; the interface unit is used for forwarding the communication request to the access equipment, sending the encoded multimedia data to the access equipment and sending the decoded multimedia data to the playing equipment.
The communication terminal is connected with the home gateway, and/or the playing device is connected with the home gateway, and/or the multimedia acquisition device is connected with the home gateway, and/or the home gateway is connected with the access device in a wired or wireless mode.
The communication terminal, the playing device, the multimedia acquisition device and the home gateway are functional entities which exist independently, or any plurality of the functional entities are integrated into one device.
The playing device is connected with the home gateway through a video interface; and/or the multimedia acquisition equipment is connected with the home gateway through a video interface.
On the other hand, the invention also provides a home gateway, which comprises a coding and decoding unit and an interface unit, wherein:
the interface unit is used for forwarding the communication request and receiving and/or sending multimedia data;
the coding and decoding unit is used for coding and/or decoding the multimedia data.
In the above technical solution, the encoding and decoding unit and the interface unit are integrated in the same device or are separated.
The encoding and decoding unit includes: an encoding unit for encoding multimedia data, and/or a decoding unit for decoding multimedia data.
The interface unit includes: an input/output interface for inputting and/or outputting multimedia data; a communication terminal interface for connecting a communication terminal; a network interface for connecting to a communication network.
Wherein the input/output interface comprises a video interface and/or an audio interface. Wherein, audio interface includes: an audio input interface for inputting audio data; and/or an audio output interface for outputting audio data. The video interface includes: a video input interface for inputting video data; and/or a video output interface for outputting video data.
The home gateway further comprises: a storage unit for storing the multimedia data; and/or a processing unit for processing and/or authenticating the call.
In another aspect, the present invention further provides a method for providing a multimedia communication service, where the method includes:
after receiving a communication request initiated by a first communication terminal, a first home gateway forwards the communication request to switching equipment;
the exchange equipment triggers the communication request to a whole-network intelligent platform, and the whole-network intelligent platform establishes a multimedia communication channel between a first home gateway and a second home gateway according to the communication request;
and the first playing equipment and the first multimedia acquisition equipment and the second playing equipment and the second multimedia acquisition equipment utilize the multimedia communication channel to carry out multimedia communication.
The step of performing multimedia communication between the first playing device and the first multimedia collecting device and the second playing device and the second multimedia collecting device by using the multimedia communication channel comprises the following steps: the first multimedia acquisition equipment acquires multimedia data and sends the multimedia data to the first home gateway, the first home gateway encodes the multimedia data and then sends the encoded multimedia data to the second home gateway through the multimedia communication channel, the second home gateway decodes the multimedia data and sends the decoded multimedia data to the second playing equipment, and the second playing equipment plays the multimedia data; and/or the second multimedia acquisition equipment acquires multimedia data and sends the multimedia data to the second home gateway, the second home gateway encodes the multimedia data and then sends the encoded multimedia data to the first home gateway through the multimedia communication channel, the first home gateway decodes the multimedia data and sends the decoded multimedia data to the first playing equipment, and the first playing equipment plays the multimedia data.
The step that the exchange equipment triggers the communication request to the whole-network intelligent platform and the whole-network intelligent platform establishes the multimedia communication path between the first home gateway and the second home gateway according to the communication request comprises the following steps: the switching equipment triggers the communication request to signaling equipment in a whole network intelligent platform, the signaling equipment sends the communication request to the soft switch, and the soft switch reports the communication request to a service platform; the service platform indicates the soft switch to establish a multimedia communication channel between the first home gateway and the second home gateway according to the multimedia request; the soft switch establishes a multimedia communication channel between the first home gateway and the second home gateway according to the indication of the service platform; or the exchange equipment triggers the communication request to signaling equipment in the whole network intelligent platform, the signaling equipment sends the communication request to the soft switch, and the soft switch establishes a multimedia communication channel between the first home gateway and the second home gateway according to the multimedia request.
The method further comprises the following steps before the first communication terminal initiates the communication request: and establishing a voice channel between the first communication terminal and the second communication terminal.
The method further comprises the following steps: and removing the multimedia communication channel by using the hanging machine.
According to the scheme, the home gateway is improved, after the communication terminal initiates the communication request, the home gateway sends the communication request to the switching equipment, the switching equipment triggers the communication request to the whole-network intelligent platform, the whole-network intelligent platform establishes a multimedia communication channel between two home gateways according to the communication request, and then two users can adopt respective playing equipment and multimedia acquisition equipment to carry out multimedia communication through the multimedia communication channel. Therefore, the invention can realize the multimedia communication service without needing complex operation equipment such as a multimedia computer, greatly reduces the difficulty of user operation and ensures that the multimedia communication service is easy to popularize on a large scale. On the basis of the invention, a plurality of services such as video monitoring, home security control and the like can be carried out. In addition, the playing equipment and the multimedia acquisition equipment in the invention can adopt the existing equipment with low price, such as a television, a camera and the like, so that the invention not only can repeatedly utilize the equipment, such as the television and the like, improve the utilization rate of the equipment, but also can reduce the cost for carrying out multimedia service.
Drawings
Fig. 1 is a schematic structural diagram of an NGN full-network intelligentization system;
fig. 2 is a schematic diagram of a system structure of xDSL broadband access;
FIG. 3 is a diagram illustrating a prior art system for providing video communication services using a multimedia computer;
fig. 4 is a schematic diagram of a system for providing multimedia communication services according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a system for providing a multimedia communication service according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a home gateway in an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail by referring to the following examples.
Fig. 4 is a schematic diagram of a system for providing multimedia communication services according to an embodiment of the present invention.
Referring to fig. 4, a system for providing a multimedia communication service according to an embodiment of the present invention includes: the system comprises a communication terminal, a playing device, a multimedia acquisition device, a home gateway, an access device, an exchange device and a whole-network intelligent platform.
The communication terminal is mainly used for initiating a communication request and removing a multimedia communication path by hanging up, except for performing a common PSTN voice service. The communication terminal may be a wired access communication terminal, such as a wired telephone, or a wireless access communication terminal, such as a wireless terminal that is accessed by using technologies such as Worldwide Interoperability for Microwave Access (WIMAX), bluetooth, infrared, and the like.
The playing device is mainly used for receiving and playing the multimedia data from the home gateway. The playing device can be a common television, a display, a projector and other devices, so that the difficulty of operation can be reduced, and the cost can also be reduced.
The multimedia acquisition equipment is mainly used for acquiring multimedia data and sending the acquired multimedia data to the home gateway. The multimedia acquisition equipment can be common equipment such as a camera, a video camera and the like, so that the operation difficulty can be reduced, and the cost can be reduced.
The home gateway is mainly used for accessing the communication terminal to the access device, sending the communication request to the access device, decoding the multimedia data from the access device and sending the decoded multimedia data to the playing device, and encoding the multimedia data from the multimedia acquisition device and sending the encoded multimedia data to the access device. The home gateway and the access device can be connected in a wired mode, and can also be connected in a wireless mode, when the communication terminal is a wired access communication terminal, the home gateway and the communication terminal are connected in a wired mode; when the communication terminal is a wireless access communication terminal, the home gateway is connected with the communication terminal in a wireless mode. In addition, any plurality of the home gateway, the communication terminal, the playing device and the multimedia capturing device may be integrated into one device, or they may be separately existing functional entities.
As shown in fig. 6, the home gateway may include a codec unit and an interface unit. The coding and decoding unit and the interface unit can be integrated in the same device or can be separated. The coding and decoding unit codes the multimedia data from the multimedia acquisition equipment and/or decodes the multimedia data from the access equipment. The interface unit is used for connecting with a communication terminal in a wireless mode or a wired mode, accessing the communication terminal to an access device, forwarding the communication request to the access device, and sending the encoded multimedia data to the access device and/or sending the decoded multimedia data to the playing device.
In fig. 6, the coding unit may include a coding unit and/or a decoding unit. The encoding unit is used for encoding the multimedia data, and the decoding unit is used for decoding the multimedia data.
The interface unit in the home gateway may include an input-output interface, a communication terminal interface, and a network interface. The input/output interface is used for inputting and/or outputting multimedia data; the communication terminal interface is used for connecting a communication terminal, receiving data of the communication terminal or transmitting data from a communication network to the communication terminal. The network interface is used to connect to a communication network so as to transmit and receive data to and from the communication network. Further, the input and output interface comprises an audio interface and/or a video interface. The audio interface comprises an audio input interface for inputting audio data and/or an audio output interface for outputting the audio data, and the video interface comprises a video input interface for inputting video data and/or a video output interface for outputting the video data.
With continued reference to fig. 6, the home gateway may further include a storage unit. The storage unit is used for storing received multimedia data, such as multimedia data from a multimedia acquisition device or a communication network.
The home gateway may further comprise a processing unit. The processing unit is mainly used for processing the call flow. For example, when a communication request to the local occurs, if no user is in the local, the processing unit may perform call failure processing. In addition, the processing unit can also automatically establish multimedia communication with the other party when no one answers, for example, the locally acquired multimedia data is sent to the other party, so that services such as local video monitoring, safety control and the like can be realized. And before the multimedia communication with the opposite side is automatically established, the processing unit can further authenticate the opposite side, so that the safety of the service can be ensured. In addition, the processing unit can provide real-time multimedia data to the other party, and also can provide pre-saved or customized multimedia data to the other party.
The access device is used for sending the communication request to the exchange device, sending the multimedia data from the home gateway to the opposite access device through the bearing network, receiving the multimedia data sent by the opposite access device through the bearing network and forwarding the multimedia data to the home gateway. The access device may be an xDSL access device, an Integrated Services Digital Network (ISDN) access device, or other types of broadband access devices.
And the switching equipment is used for triggering the communication request to a whole-network intelligent platform. The switching device may employ an existing PSTN switch fabric.
And the whole network intelligent platform is used for establishing a multimedia communication channel between the home gateway and the other home gateway according to the communication request. In addition, the whole network intelligent platform can also store data in the communication process, such as authentication data, user data, multimedia data and the like, and the data can be applied to a plurality of services such as video monitoring, home security control and the like.
The whole network intelligent platform in the embodiment of the invention comprises a service platform, a soft switch and a signaling device. The signaling device is configured to send the communication request to the soft switch, and the signaling device may be a TMG, an SG, an STP, or the like. The soft switch is used for reporting the communication request to a service platform and establishing the multimedia communication path according to the indication of the service platform; the service platform is used for indicating the soft switch to establish the multimedia communication path according to the communication request and also can be used for storing data generated in the communication process. On the other hand, the soft switch can also directly establish the multimedia communication path according to the communication request without reporting to the service platform.
For convenience of understanding, in the following description, the user terminal, the playing device, the multimedia capturing device, the access device, the switching device, and the signaling device respectively take a telephone, a television, a camera, an xDSL access device, a PSTN switch, and a TMG as examples to illustrate the embodiments of the present invention, but the present invention is not limited thereto.
Embodiments of the present invention are further described below, taking the system of fig. 5 as an example.
Referring to fig. 5, the system includes a full-network intelligent platform, xDSL access devices, a PSTN switch, and a home gateway, a telephone, a television, and a camera for each user end.
Besides normal PSTN voice service, the telephone can also initiate communication request and send the communication request to the home gateway. When the multimedia communication service needs to be ended, the multimedia communication channel can be removed by hanging up the telephone.
The television is used for receiving the multimedia data from the home gateway and playing the multimedia data; the camera is used for collecting multimedia data and sending the multimedia data to the home gateway.
The xDSL access device is mainly used for sending a communication request initiated by a telephone to the PSTN switch, and also used for sending multimedia data from the home gateway to the other xDSL access device through the bearer network, and receiving the multimedia data sent by the other xDSL access device through the bearer network and forwarding the multimedia data to the home gateway.
Besides the functions in the prior art, the PSTN switch is also used for triggering the communication request from the home gateway to the full-network intelligent platform. The PSTN switch includes the end office PSTN switch and the tandem PSTN switch, and the end office PSTN switch needs to send all service requests to the tandem PSTN switch, and the tandem PSTN switch performs different processes, such as triggering to a full-network intelligent platform, or performing normal PSTN voice service.
In the system shown in fig. 5, the network-wide intelligent platform is mainly used for receiving a communication request from a telephone from a PSTN switch and establishing a multimedia communication path between two users according to the communication request. The network-wide intelligent platform generally includes a service platform, a soft switch and a signaling device, wherein the signaling device may be a TMG, an SG, an STP, etc., and the TMG is taken as an example in the following description, but the present invention is not limited thereto.
In the whole network intelligent platform, TMG sends the communication request to the soft switch, the soft switch reports the communication request to the service platform, the service platform instructs the soft switch to establish the multimedia communication channel according to the communication request, and the soft switch establishes the multimedia communication channel according to the instruction of the service platform. In addition, the soft switch can also directly establish a multimedia communication path according to the communication request without reporting to the service platform, namely: and the TMG sends the communication request to a soft switch, and the soft switch establishes the multimedia communication channel according to the communication request. In addition, the service platform can also be used for storing data generated in the communication process.
The multimedia communication path in the embodiment of the invention mainly refers to a path from a home gateway of one user to a home gateway of another user. In order to distinguish two parties using a multimedia communication service, the two parties are not called a first user and a second user, and a television, a camera, a home gateway, and an xDSL access device corresponding to the first user are called a first television, a first camera, a first home gateway, and a first xDSL access device, and a television, a camera, a home gateway, and an xDSL access device corresponding to the second user are called a second television, a second camera, a second home gateway, and a second xDSL access device. A first user shoots own multimedia data through a first camera and then sends the multimedia data to a first home gateway, and the first home gateway encodes the shot multimedia data to obtain encoded multimedia data and sends the encoded multimedia data to first xDSL access equipment; the first xDSL access device distinguishes multimedia data in the data from the first home gateway and sends the multimedia data to a second xDSL access device corresponding to the second user through an IP bearing network, the second xDSL access device sends the multimedia data from the first user to the home gateway of the second user, namely the second home gateway, the second home gateway distinguishes the multimedia data in the data from the second xDSL access device and decodes the multimedia data, and then the decoded multimedia data is output to the television through a multimedia output interface, so that the second user can receive the multimedia data of the first user from the second television. The multimedia data flow from the second user to the first user is the same and will not be described in detail here.
In order to implement the above process, the home gateway includes a codec unit and an interface unit. The coding and decoding unit is used for coding the multimedia data from the camera and then sending the multimedia data to the home gateway of the other party, and the coding and decoding unit is also used for decoding the multimedia data from the xDSL access equipment and then sending the multimedia data to the television for playing. The coding and decoding of the coding and decoding unit can adopt coding and decoding technologies such as Moving Picture Experts Group (Mpeg) -1, Mpeg-2, Mpeg-4, H.261, H.263 or H.264 and the like. And the interface unit is mainly used for transmitting the decoded multimedia data to the television.
The method for implementing the multimedia communication service according to the embodiment of the present invention is described below with reference to the system structure of fig. 5. It is not assumed here that the first user initiates the request, and the first user corresponds to a first telephone, a first television, a first camera, a first home gateway, and a first xDSL access device, and similarly, the second user corresponds to a second user, and the second user corresponds to a second telephone, a second television, a second camera, a second home gateway, and a second xDSL access device. The process of performing the multimedia communication service between the first user and the second user using the system shown in fig. 5 includes:
step 101, a first user dials a phone number of a second user by using a first phone to initiate a call request.
Step 102, the call request is routed to the first xDSL access device via the first home gateway, and the first xDSL access device separates the call request and sends it to the PSTN switch. If the PSTN switch connected to the first xDSL access device is not the PSTN switch of the tandem, it is also necessary to send a call request to the PSTN switch of the tandem. The PSTN switches described below are all tandem PSTN switches, except where specifically noted.
Since the call request does not need to trigger the intelligent network service, the PSTN switch sends the call request to the second xDSL access device, step 103.
Step 104, the second xDSL access device pages the second phone and sends the call to the second home gateway.
Step 105, the second home gateway separates the call and sends it to the second telephone set, which rings.
And 106, when the second user is off-hook, establishing a PSTN voice path between the first telephone and the second telephone.
The above steps 101 to 106 are the same as the procedure of establishing the PSTN voice path in the prior art.
Step 107, the first user and the second user need to further perform multimedia communication during the PSTN voice call, which will be described below by taking an example that the first user initiates a communication request, but the present invention is not limited thereto. The first user performs a specific operation on the first telephone, such as inputting a multimedia communication service number, thereby initiating a communication request for establishing a multimedia communication path between the first home gateway and the second home gateway. Of course, the second user may initiate the communication request through the second telephone. In addition, the first user and the second user can turn on the television and the camera before the first user initiates the communication request, or can turn on the television and the camera after the first user initiates the communication request.
Step 108, the communication request is routed to the first xDSL access device via the home gateway, and the first xDSL separates the communication request and sends it to the PSTN switch.
Step 109, since the communication request needs to trigger the intelligent network service, the PSTN switch triggers the communication request to the full-network intelligent platform.
And step 110, the whole network intelligent platform establishes a multimedia communication channel between the first home gateway and the second home gateway according to the communication request. The multimedia communication channel is from the first home gateway to the first xDSL access device, through the IP bearing network to the second xDSL access device, and then to the second home gateway.
The specific process of the above steps 109 and 110 is as follows: the PSTN exchanger judges that the communication request needs to trigger the intelligent network service, and sends the communication request to the TMG, and the TMG sends the communication request to the soft switch through the IP bearing network; the soft switch reports the communication request to the service platform, the service platform controls the soft switch to establish a multimedia communication channel between the first home gateway and the second home gateway according to the communication request, and the soft switch establishes the multimedia communication channel between the first home gateway and the second home gateway according to the control of the service platform.
In addition, the specific processes of step 109 and step 110 may be: the PSTN exchanger judges that the communication request needs to trigger the intelligent network service, and sends the communication request to the TMG, and the TMG sends the communication request to the soft switch through the IP bearing network; the soft switch establishes a multimedia communication path between the first home gateway and the second home gateway directly according to the communication request without control through the service platform.
And step 111, the first user and the second user carry out multimedia communication by using the established multimedia communication channel. For example, a first camera shoots to obtain multimedia data, and then the multimedia data is sent to a first home gateway; the first home gateway encodes the multimedia data and sends the encoded multimedia data to the first xDSL access equipment; the first xDSL access device separates the multimedia data and sends the multimedia data to the second xDSL access device through the IP bearing network; the second xDSL access device sends the multimedia data to the second home gateway, and the second home gateway decodes the multimedia data and sends the decoded multimedia data to the television, and the television plays the multimedia data to the second user.
The process from the second user to the first user is similar to the process from the first user to the second user described above, namely: the second camera shoots to obtain multimedia data, and then the multimedia data is sent to the second home gateway; the second home gateway encodes the multimedia data and sends the encoded multimedia data to the second xDSL access device; the second xDSL access device separates the multimedia data and sends the multimedia data to the first xDSL access device through the IP bearing network; the first xDSL access device sends the multimedia data to the first home gateway, the first home gateway decodes the multimedia data, and sends the decoded multimedia data to the television, and the television plays the multimedia data to the first user.
And step 112, after the multimedia communication is finished, the first user or the second user hangs up at the first telephone or the second telephone, so that the multimedia communication channel and the PSTN voice channel are removed. After the multimedia communication channel is removed, the first user and the second user can close the respective television and the camera.
The procedure for removing the path is described by taking the example of the second user hanging up at the second telephone. When the second user hangs up on the second telephone, the PSTN voice session is subsequently torn down, as in the prior art. Meanwhile, after the second home gateway receives the on-hook signal of the second telephone, the multimedia communication channel between the second home gateway and the first home gateway is removed.
In addition, in the communication process, the service platform can further store data in the communication process, so that the service platform can be applied to multiple services such as video monitoring, home security control and the like.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (19)
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200610161751 CN1988578A (en) | 2006-12-19 | 2006-12-19 | System and method for providing multimedia communication and household gateway |
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| CN 200610161751 CN1988578A (en) | 2006-12-19 | 2006-12-19 | System and method for providing multimedia communication and household gateway |
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| CN1988578A true CN1988578A (en) | 2007-06-27 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101820379A (en) * | 2009-02-26 | 2010-09-01 | 中兴通讯股份有限公司 | Personal network based media content forwarding method and equipment, as well as personal network system |
| WO2010142229A1 (en) * | 2009-06-08 | 2010-12-16 | 华为技术有限公司 | Method, device and system for soft switch service communication |
| CN102340650A (en) * | 2010-07-19 | 2012-02-01 | 中国移动通信集团公司 | Method and system for terminal video monitoring |
| CN103402073A (en) * | 2013-08-22 | 2013-11-20 | 聚领信息技术（上海）有限公司 | Method for realizing video communication by input/ output (I/ O) separation way |
| WO2015027405A1 (en) * | 2013-08-28 | 2015-03-05 | Alcatel Lucent | A residential gateway device and a network-side control device |
| CN106060028A (en) * | 2016-05-26 | 2016-10-26 | 国网福建省电力有限公司 | Internal and external power network voice communication safety isolation gateway |
| US9510255B2 (en) | 2011-11-08 | 2016-11-29 | Huawei Technologies Co., Ltd. | Network handover method and apparatus |
| CN103402073B (en) * | 2013-08-22 | 2016-11-30 | 聚领信息技术（上海）有限公司 | The method realizing video communication with input and output separate mode |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101820379A (en) * | 2009-02-26 | 2010-09-01 | 中兴通讯股份有限公司 | Personal network based media content forwarding method and equipment, as well as personal network system |
| WO2010142229A1 (en) * | 2009-06-08 | 2010-12-16 | 华为技术有限公司 | Method, device and system for soft switch service communication |
| CN101583097B (en) * | 2009-06-08 | 2011-11-16 | 华为技术有限公司 | Soft switch service communication method, device and system |
| CN102340650A (en) * | 2010-07-19 | 2012-02-01 | 中国移动通信集团公司 | Method and system for terminal video monitoring |
| CN102340650B (en) * | 2010-07-19 | 2014-01-15 | 中国移动通信集团公司 | Method and system for terminal video monitoring |
| US9510255B2 (en) | 2011-11-08 | 2016-11-29 | Huawei Technologies Co., Ltd. | Network handover method and apparatus |
| CN103402073A (en) * | 2013-08-22 | 2013-11-20 | 聚领信息技术（上海）有限公司 | Method for realizing video communication by input/ output (I/ O) separation way |
| CN103402073B (en) * | 2013-08-22 | 2016-11-30 | 聚领信息技术（上海）有限公司 | The method realizing video communication with input and output separate mode |
| WO2015027405A1 (en) * | 2013-08-28 | 2015-03-05 | Alcatel Lucent | A residential gateway device and a network-side control device |
| CN106060028A (en) * | 2016-05-26 | 2016-10-26 | 国网福建省电力有限公司 | Internal and external power network voice communication safety isolation gateway |
| CN106060028B (en) * | 2016-05-26 | 2019-03-12 | 国网福建省电力有限公司 | A security isolation gateway for voice communication inside and outside the power network |
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