WO2014032605A1

WO2014032605A1 - Method, system, and device for implementing control service in sip network

Info

Publication number: WO2014032605A1
Application number: PCT/CN2013/082584
Authority: WO
Inventors: 邢晓江
Original assignee: 中兴通讯股份有限公司
Priority date: 2012-08-29
Filing date: 2013-08-29
Publication date: 2014-03-06
Also published as: CN102833254A; CN102833254B

Abstract

Disclosed is a method for implementing a control service in a session initiation protocol (SIP) network. The method comprises: a controlling party sending, according to the capability of a controlled party, a control instruction of the SIP protocol to the controlled party through an SIP core network; receiving a control result instruction returned from the controlled party and forwarded by the SIP core network. Also disclosed is a system and device for implementing a control service in an SIP network. The solution of the present invention can implement remote control over the SIP network device, facilitate the user operation on the remote device, and bring many benefits for the operator to extending the service scope, saving the investment, and attracting the user.

Description

Method, system and device for implementing control service in SIP network

The present invention relates to the Internet of Things communication technology, and in particular, to a method, system and device for implementing a control service in a Session Initiation Protocol (SIP) network. Background technique

At present, SIP networks, such as softswitch networks and IMS networks, offer a variety of services including VoIP, presence, instant messaging, etc., covering a wide range of users. Currently, all traditional PSTN voices have been completely modified, and many domestic and international operations. Businesses have deployed IMS and/or softswitch networks with a large user base.

Currently, the services provided by the SIP network are mainly session-based multimedia services, and the basic control signaling adopts the SIP protocol.

As the key direction of the development of the country and operators, the Internet of Things is jointly promoted by the state, local governments and operators. At the same time, the demand for communication services from users, from simple voice communication, to multimedia communication, with the development of the Internet of Things In particular, similar to the development of smart home services, users directly communicate with terminals in the home to obtain relevant information, and more and more needs and scenarios for controlling the device.

For example: In the smart terminal in the home, it can support the video call service. The user can see the video image in the home through this video call service. If the direction of the camera can be conveniently adjusted during this session, then You can see a wider range.

Another example: In a smart home system, remote control of some devices in the home may be required. If it can be implemented by the SIP protocol, it can be used by the operator on the existing core network through a unified service platform. Providing similar services will bring many benefits to operators' expansion of service scope, investment saving and attracting users. For example: At present, the intercom system in buildings and houses is independent of the communication network, but the functions of the intercom system and the functions of the existing communication services are almost completely overlapped. At present, it is difficult to provide direct control of the door opening operation of the corridor door. If this is supported in existing communication services, achieving better bundling between operators and users will lay a good foundation for follow-up services. Summary of the invention

The embodiments of the present invention mainly provide a method, a system, and a device for implementing a control service in a SIP network, which can implement remote control of a SIP network device.

The technical solution of the embodiment of the present invention is implemented as follows:

A method for implementing a control service in a SIP network according to an embodiment of the present invention, the method includes:

The controlling party sends a control command of the SIP protocol to the controlled party via the SIP core network according to the capability of the controlled party; and receives a control result instruction returned by the controlled party forwarded by the SIP core network.

In the foregoing solution, the control instruction of the SIP protocol is obtained by extending a message type of the SIP, including: adding a control message type in a message type of the SIP, defining a control instruction of the SIP protocol, and a message of the control instruction of the SIP protocol. The type is the control message type, and the unique identifier, operation object, and operation mode of the control instruction are described in the message header of the SIP protocol control instruction, or the SDP text, or the XML text.

In the foregoing solution, the control instruction of the SIP protocol is obtained by reusing an existing SIP message, including: reusing a session establishment request (INVITE), and/or information (MESSAGE), and/or a notification (INFO) message, in An indication of the control instruction is added to the message header of the reused message, and the unique identifier, operation object, operation of the control instruction is described in the message header, or Session Description Protocol (SDP) text, or Extensible Markup Language (XML) text. the way.

In the above scheme, an operation description is also carried in the header, or SDP text, or XML text.

In the above solution, the control result instruction is obtained by extending a message type of the SIP, The method includes: adding a control message type to a message type of the SIP, and defining a control result instruction, where the message type of the control result instruction is a control message type, in a message header of the control result instruction, or

The unique identifier, operation object, and operation result of the control result instruction are described in the SDP text or XML text.

In the above solution, the control result instruction is obtained by reusing the existing SIP message, including: reusing the INVITE, and/or the MESSAGE, and/or the INFO message, and adding the indication to the message header of the reused message as the control instruction. Indicates and describes the unique identifier, operation object, and operation result of the control result instruction in the message header, or SDP text, or XML text.

In the above solution, the method further includes: before the controlling party sends the SIP protocol control instruction to the controlled party via the SIP core network according to the capability of the controlled party, the controlling party sends the INFO message sent by the SIP protocol for acquiring and controlling. Request of the capability of the party, the request is forwarded to the controlled party via the SIP core network, and the controlled party sends its capability to the SIP core network through the extended session description protocol (SDP), and the capability of the SIP core network to be controlled by the control party Forward to the controlling party.

In the above solution, the SIP core network includes: a softswitch or an IMS core network.

In the above solution, the capabilities of the controlled party include: an operation mode supported on a port or a channel.

An embodiment of the present invention provides a system for implementing a control service in a SIP network, where the system includes: a controlling party, a controlled party, and a SIP core network;

The control party is configured to send a control instruction of the SIP protocol to the controlled party via the SIP core network according to the capability of the controlled party, and receive a control result instruction returned by the controlled party forwarded by the SIP core network; the controlled party is configured to receive the SIP protocol. Control instructions and return control result instructions to the SIP core network;

The SIP core network is configured to forward interaction signaling between the controlling party and the controlled party.

In the above solution, the control party includes: a control instruction sending module and a control result receiving module; a control instruction sending module configured to send a SIP protocol control instruction to the controlled party via the SIP core network according to the capability of the controlled party;

The control result receiving module is configured to receive a control result instruction returned by the controlled party forwarded by the SIP core network.

In the above solution, the controller further includes: a capability acquiring module, configured to send a request for acquiring the capability of the controlled party by using an INFO message of the SIP protocol, where the request is forwarded to the controlled party through the SIP core network, and the receiving is received The ability of the controller to return itself.

In the above solution, the controlled party includes: a control instruction receiving module, an execution module, and a result returning module; wherein

a control instruction receiving module configured to receive a control instruction of a SIP protocol;

An execution module, configured to perform an operation according to the control instruction of the SIP protocol, and send the execution result to the result returning module;

The result returns a module configured to return a control result instruction to the SIP core network.

In the above solution, the controlled party further includes: a capability notification module, configured to return the capability of the control party to the control party after receiving the request of the control party to acquire the capability of the controlled party.

In the foregoing solution, the control instruction of the SIP protocol is obtained by reusing the existing SIP message, including: reusing the INVITE, and/or the MESSAGE, and/or the INFO message, adding a indication to the message header of the reused message as a control An indication of the instruction and a unique identifier, operation object, and operation mode of the control instruction in the message header, or SDP text, or XML text. In the foregoing solution, the control result instruction is obtained by extending a message type of the SIP, including: adding a control message type to a message type of the SIP, and defining a control result instruction, where the message type of the control result instruction is a control message type, In the header of the control result instruction, or

The controller provided by the embodiment of the present invention includes: a control instruction sending module and a control result receiving module;

a control instruction sending module configured to send a SIP protocol control command to the controlled party via the SIP core network according to the capability of the controlled party;

An embodiment of the present invention provides a controlled party, where the controlled party includes: a control instruction receiving module, an execution module, and a result returning module;

The embodiment of the invention provides a method, a system and a device for implementing a control service in a SIP network. The control party sends a SIP protocol control command to the controlled party via the SIP core network (Core) according to the capability of the controlled party; receiving the SIP core The control result instruction returned by the controlled party of the network forwarding; thus, the remote control of the SIP network device can be realized, and the user can operate the remote device, Expanding the scope of services, saving investment, and attracting users will bring many benefits. DRAWINGS

1 is a schematic flow chart of a method for implementing a control service in a SIP network according to an embodiment of the present invention;

2 is a schematic flowchart of a control service performed by a controller A and a controlled party B in a session process according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of an implementation system for implementing a control service in a SIP network according to an embodiment of the present invention. Detailed ways

In the embodiment of the present invention, the controlling party sends a control instruction of the SIP protocol to the controlled party via the SIP core network according to the capability of the controlled party; and receives a control result instruction returned by the controlled party forwarded by the SIP core network.

The controller and the controlled party are two terminal devices capable of communicating in the SIP network.

The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

The embodiment of the present invention implements a method for implementing a control service in a SIP network. As shown in FIG. 1, the method includes the following steps:

Step 101: The control party sends a control instruction of the SIP protocol to the controlled party via the SIP core network according to the capability of the controlled party.

Before the step, the controller may further send a request for acquiring the capability of the controlled party by using the INFO message of the SIP protocol, and the request is forwarded to the controlled party via the SIP core network, and the controlled party extends its capability. The Session Description Protocol (SDP) is sent to the SIP core network, and the SIP core network forwards the capability of the controlled party to the controlling party. The capabilities of the controlled party include: the operation mode supported on the port or the channel;

The SIP core network includes: a softswitch or an IMS core network; The extended SDP is generally: an SDP message including an operation object and an operation mode supported by the operation object;

The control instruction of the SIP protocol is generally obtained by extending a SIP message type or reusing an existing SIP message;

The control instruction of the SIP protocol is obtained by extending the message type of the SIP, including: adding a control message type to the message type of the SIP, defining a control instruction of the SIP protocol, and a message type of the control instruction of the SIP protocol. To control the message type, describe the unique identifier, operation object, and operation mode of the control instruction in the message header of the control instruction of the SIP protocol, or SDP text, or Extensible Markup Language (XML) text; further, the control of the SIP protocol The message header of the instruction, or the SDP text, or the XML text also carries an operation description;

For example, add the control message type control/SDP or control/XML to the SIP message type, define the control instruction CONTROL of the SIP protocol, and set the Content-Type in the message header of the CONTROL to control/SDP or control/XML. In the SDP text or XML text in the body, the operation object D, the operation mode E, and the operation description T are added; the specific structure of the CONTROL is as follows:

CONTROL sip:B@zte.com.cn SIP/2.0 //Send control command to controlled party B CONTROL

Via:SIP/2.0/UDP proxy.zte.com.cn 〃Proxy through proxy:zte.com.cn From: A //Identity of the controlling party that initiated the control request A

To:B //The identity of the controlled party B

Control-ID :238899011 @zte.com.cn〃The unique identifier of the control instruction

Subject: Door Control 〃 The name of the control object is Door ( Door )

Content-Type: control/SDP 〃The type of the message body is control/SDP

Content-Length: 100 //The length of the message body

Described in the SDP text as:

V=0 〃 version 0=A 53655765 2353687637 IN IP4 128.3.4.5 〃 Session creator and session identification, session version, address protocol type, address

D=channell 〃The operation object is channel ( channel ) 1

E=OPEN //Operation mode is open

T=open the door 〃The operation is described as opening the door.

In the above control instruction, if the type of the message body is control/XML, Bay

An example of describing alarm control in XML text is:

<?xml version="1.0" encoding="US-ASCII"?>

<alarm>

<location>door</location> 〃Operation object

<time>20120528 12:00:00</time> 〃Operation: Operation starts on May 28, 2012 at 12:00:00

<pic>http://10.1.1. l/pic/door2012052812.gif</pic> 〃Operation: Access Specify the path

</alarm>

</msml>

An example of describing control opening in XML text is:

<?xml version^ ¹ 1.0" encoding= ^,, US-ASCH ^,, ?>

<id>door</id> 〃Operation object

<operate>open</operate> 〃〃Operation: Open

</control>

</msml> The control instruction of the SIP protocol is obtained by reusing the existing SIP message, including: reusing the INVITE, and/or MESSAGE. and/or INFO messages, and adding an indication indicating the control instruction to the message header of the reused message. And describe the unique identifier, operation object, and operation mode of the control instruction in the message header, or SDP text, or XML text; further, the operation description and the like are also carried in the message header, or the SDP text, or the XML text.

For example: Reuse the MESSAGE or INFO message, set the Content-Type in the header to control/SDP or control/XML to indicate that the reused MESSAGE or INFO message is a control instruction, in the SDP text or XML text in the message body. , adding the operation object D, the operation mode E; further, adding an operation description T in the SDP text or the XML text in the message body;

Take the reuse of INFO message as an example:

INFO sip: a@zte.com.cn SIP/2.0

Via SIP/2.0/UDP proxy.zte.com.cn

Max-Forwards: 70

Route: <sip:scscfl . home 1.net; lr> <atcf.visitedl .net;lr>

From: A

To: B

CONTROL-ID: Cb03a0s09a2sdfglkj490334 唯一 Unique identification of the control command Content- Type: control/SDP

Content-Length:

Described in the SDP text as:

v=o

D=channell〃 operation object

E=OPEN //Operation mode

T=ope the door // operation description.

Step 102: The control party receives a control result instruction returned by the controlled party forwarded by the SIP core network. The control result instruction is generally also obtained by extending the message type of the SIP or reusing the existing SIP message;

The control result instruction is obtained by extending a message type of the SIP, including: adding a control message type to a message type of the SIP, defining a control result instruction, the message type of the control result instruction is a control message type, and the control result instruction The unique identifier of the control result instruction, the operation object, the operation result, etc. in the header, or SDP text, or XML text;

For example, the control message type control/SDP or control/XML is added to the SIP message type, and the control result instruction CONTROL-RES is defined. The CONTROL-RES carries the unique identifier of the control instruction and carries the operation object in the SDP text or XML text. D and operation result R; The specific structure of CONTROL-RES is as follows:

CONTROL-RES sip: B@zte.com.cn SIP/2.0

Via SIP/2.0/UDP proxy.zte.com.cn

Max-Forwards: 70

Route: <sip:scscfl . home 1.net; lr> <atcf.visitedl .net;lr>

From: B

To: A

CONTROL-ID: Cb03a0s09a2sdfglkj490334 //The unique identifier of the control result instruction Content-Type: control/SDP〃 The type of the message body is control/SDP

Content-Length:

Described in the SDP text as:

v=o

D=channell 〃 operation object

R=success // operation result.

The control result instruction is obtained by reusing an existing SIP message, including:

Messages such as INVITE, and/or MESSAGE, and/or INFO, add an indication of the control instruction in the header of the reused message, and in the header, or SDP text, or XML text Describe the unique identifier of the control result instruction, the operation object, the operation result, and the like;

For example: Reuse the MESSAGE or INFO message, set the Content-Type in the header to control/SDP or control/XML to indicate that the reused MESSAGE or INFO message is a control instruction, in the SDP text or XML text in the message body. , increase the operation object D, the operation result R; take the INFO message as an example:

INFO sip: B@zte.com.cn SIP/2.0

Via SIP/2.0/UDP proxy.zte.com.cn

Max-Forwards: 70

Route: <sip:scscfl . home 1.net; lr> <atcf.visitedl .net;lr>

From: B

To: A

CONTROL-ID: Cb03a0s09a2sdfglkj490334 //The unique identifier of the control result instruction

Content- Type: control/SDP

Content-Length:

Described in the SDP text as:

v=o

D=channell 〃 operation object

R=success // operation result.

The step further includes: after receiving the control instruction of the SIP protocol sent by the control party, the controlled party returns a confirmation message to the control party through the SIP core network;

The confirmation message may be a newly defined SIP message or a 200 OK message; for example: the newly defined SIP message is CONTROL-CFM, and the message carries a unique identifier of the control instruction.

CONTROL-CF M sip:A@zte.com.cn SIP/2.0 发送 Send a confirmation message to A Via:SIP/2.0/UDP proxy.zte.com.cn 代理Proxy: proxy.zte.com.cn From: B //The identity of the controlled party B To: A //The identity of the controlling party A

Control-ID : 2388990 l l@zte.com.cn //The unique identifier of the control command

Subject: Door Control // The name or attribute of the control.

Figure 2 depicts the specific flow of the control service performed by the controller A and the controlled party B during the session, including the following steps:

Step 201: The controller A sends a session establishment request message Invite to the SIP core network. Step 202: The SIP core network forwards the session establishment request message Invite to the controlled party B. Step 203: The controlled party B replies to the ringing response. 180 Ring;

Step 204: The SIP core network forwards the ringing response 180 Ring to the controller A. Step 205: After receiving the session establishment request, the controlled party B sends a 200 OK message to the SIP core network.

Step 206: The SIP core network forwards the 200 OK message to the controller A.

Step 207: The controller A sends an acknowledgement message ACK to the SIP core network.

Step 208: The SIP core network forwards the acknowledgement message ACK to the controlled party B.

Step 209: Control party A starts to talk with controlled party B;

Step 210: The controller A sends a request for acquiring the capability of the controlled party B to the SIP core network. Step 211: The SIP core network forwards the request for acquiring the capability of the controlled party B to the controlled party B. Step 212: Controlled party B Returning its capabilities to the SIP core network;

Step 213: The SIP core network forwards the capability of the controlled party B to the controller A;

Step 214: The controller A sends the control command of the SIP protocol according to the capability of the controlled party to

SIP core network;

Step 215: The SIP core network forwards the control command of the SIP protocol to the controlled party B. Step 216: The controlled party B replies an acknowledgement message to the SIP core network.

Step 217: The SIP core network forwards the confirmation message to the controller A;

Step 218: The controlled party B performs local operations according to the control instructions of the SIP protocol, and Return control result instructions to the SIP core network;

Step 219: The SIP core network forwards the control result instruction to the controller A;

Step 220: At the end of the session, the controlled party B sends an end message BYE to the SIP core network;

Step 221: The SIP core network forwards the end message BYE to the controller A;

Step 222: The controller A replies with a 200 OK message to the SIP core network;

Step 223: The SIP core network forwards the 200 OK message to the controlled party B.

The control command of the SIP protocol, the control result instruction and the acknowledgement message of step 216 in this flow are the same as the control command, control result command and acknowledgement message of the SIP protocol described in steps 101-102 above.

In order to implement the foregoing method, the embodiment of the present invention further provides a system for implementing a control service in a SIP network. As shown in FIG. 3, the system includes: a controller 31, a controlled party 32, and a SIP core network 33;

The controller 31 is configured to send a control command of the SIP protocol to the controlled party 32 via the SIP core network 33 according to the capability of the controlled party, and receive a control result instruction returned by the controlled party 32 forwarded by the SIP core network 33;

The controlled party 32 is configured to receive the control command of the SIP protocol, and return a control result instruction to the SIP core network 33;

The SIP core network 33 is configured to forward the interaction signaling between the controller 31 and the controlled party 32. The control command of the SIP protocol is obtained by extending the message type of the SIP, including: adding control to the message type of the SIP The message type defines a control instruction of the SIP protocol, and the message type of the control instruction of the SIP protocol is a control message type, and the unique identifier of the control instruction is described in a message header of the control instruction of the SIP protocol, or an SDP text, or an XML text, Operation object, operation mode; further, carrying an operation description in a message header of the SIP protocol control instruction, or SDP text, or XML text; The control instruction of the SIP protocol is obtained by reusing the existing SIP message, including: reusing the INVITE, and/or MESSAGE. and/or INFO messages, and adding an indication indicating the control instruction to the message header of the reused message. And describe the unique identifier, operation object, and operation mode of the control instruction in the message header, or SDP text, or XML text; further, the operation description and the like are also carried in the message header, or the SDP text, or the XML text.

Messages such as INVITE, and/or MESSAGE, and/or INFO, add an indication indicating the control instruction in the message header of the reused message, and describe the unique identifier of the control result instruction in the header, or SDP text, or XML text. , operation objects, operation results, and so on.

The controller 31 includes: a control command sending module 311 and a control result receiving module 312;

The control command sending module 311 is configured to send a control command of the SIP protocol to the controlled party 32 via the SIP core network 33 according to the capability of the controlled party 32;

The control result receiving module 312 is configured to receive a control result instruction returned by the controlled party 32 forwarded by the SIP core network 33;

The controller 31 further includes a capability acquisition module 313 configured to send a request for acquiring the capability of the controlled party 32 by using an INFO message of the SIP protocol, and the request is forwarded to the controlled party 32 via the SIP core network 33, and is received. The ability to be returned by the controlling party 32;

In a practical application, the control command sending module 311 can be implemented by a control party's transmitter, the control result receiving module 312 can be implemented by a controller of the controller, and the capability acquiring module 313 can be controlled by the controller's CPU, Or digital signal processor (DSP), or programmable logic Array (FPGA) implementation.

The controlled party 32 includes: a control instruction receiving module 321, an execution module 322, and a result returning module 323; wherein

The control instruction receiving module 321, is configured to receive a control instruction of the SIP protocol;

The execution module 322 is configured to perform an operation according to the control instruction of the SIP protocol, and send the execution result to the result returning module 323;

The result returning module 323 is configured to return a control result instruction to the SIP core network 33. The controlled party 32 further includes: a capability notification module 324 configured to, after receiving the request of the controlling party 31 to acquire the capability of the controlled party, Returning to the controller 31 via the SIP core network 33;

In an actual application, the control instruction receiving module 321 can be implemented by a receiver of the controlled party, and the result returning module 323 can be implemented by a transmitter of the controlled party, and the executing module 322 and the capability notifying module 324 can be implemented by Implemented by the controller's CPU, or DSP, or FPGA.

Based on the above system, the embodiment of the present invention further provides a controller. As shown in FIG. 3, the controller 31 includes: a control command sending module 311 and a control result receiving module 312. The control command sending module 311 is configured to Sending a control command of the SIP protocol to the controlled party 32 via the SIP core network 33 according to the capability of the controlled party 32;

The controller 31 further includes a capability acquisition module 313 configured to send a request configured to acquire the capability of the controlled party 32 by using an INFO message of the SIP protocol, and the request is forwarded to the controlled party 32 via the SIP core network 33, and is received. The ability to be returned by the controlling party 32;

In a practical application, the control command sending module 311 can be implemented by a transmitter of the controller, and the control result receiving module 312 can be implemented by a receiver of the controller, and the capability is obtained. The fetch module 313 can be implemented by the controller's CPU, or DSP, or FPGA.

Based on the above system, the embodiment of the present invention further provides a controlled party. As shown in FIG. 3, the controlled party 32 includes: a control instruction receiving module 321 , an executing module 322 , and a result returning module 323 ;

Industrial applicability

In summary, the embodiment of the present invention can implement remote control of a SIP network device, and facilitates the user to operate the remote device, which has many advantages for the operator to expand the service scope, save investment, and attract users.

The above is only the preferred embodiment of the present invention and is not intended to limit the scope of the present invention.

Claims

claims

1. A method for implementing control services in a Session Initiation Protocol (SIP) network, including: The controlling party sends control instructions of the SIP protocol to the controlled party through the SIP core network according to the capabilities of the controlled party; Receives the controlled party forwarded by the SIP core network. The control result instruction returned by the controller.

2. The implementation method according to claim 1, wherein the control instructions of the SIP protocol are obtained by extending the message type of the SIP, including: adding a control message type to the message type of the SIP and defining the control instructions of the SIP protocol. , the message type of the control instruction of the SIP protocol is a control message type, and the unique identification, operation object, and operation mode of the control instruction are described in the message header, or SDP text, or XML text of the control instruction of the SIP protocol.

3. The implementation method according to claim 1, wherein the control instructions of the SIP protocol are obtained by reusing existing SIP messages, including: reusing session establishment requests (INVITE), and/or messages (MESSAGE), and/or notification (INFO) message, add an indication as a control instruction in the message header of the reused message, and describe it in the message header, or Session Description Protocol (SDP) text, or Extensible Markup Language (XML) text The unique identification, operation object, and operation mode of the control instruction.

4. The implementation method according to claim 2 or 3, wherein the message header, or SDP text, or XML text also carries an operation description.

5. The implementation method according to claim 1, wherein the control result instruction is obtained by extending the message type of SIP, including: adding a control message type to the message type of SIP, defining the control result instruction, and the control result instruction is: The message type of the result instruction is a control message type, and the unique identifier, operation object, and operation result of the control result instruction are described in the message header of the control result instruction, or SDP text, or XML text.

6. The implementation method according to claim 1, wherein the control result instruction is obtained by reusing existing SIP messages, including: reusing INVITE, and/or MESSAGE, and/or INFO messages, in the reused messages Add an indication as a control instruction to the message header, And describe the unique identifier, operation object, and operation result of the control result instruction in the message header, or SDP text, or XML text.

7. The implementation method according to any one of claims 1 to 6, wherein the method further includes: before the controlling party sends a control instruction of the SIP protocol to the controlled party through the SIP core network according to the capabilities of the controlled party, the The controlling party uses the INFO message of the SIP protocol to send a request for obtaining the capabilities of the controlled party. The request is forwarded to the controlled party via the SIP core network, and the controlled party transmits its capabilities through the extended session description protocol (SDP). Sent to the SIP core network, the SIP core network forwards the capabilities of the controlled party to the controlling party.

8. The implementation method according to claim 7, wherein the SIP core network includes: soft switching or IMS core network.

9. The implementation method according to claim 7, wherein the capabilities of the controlled party include: operating modes supported on the port or channel.

10. A system for realizing control services in a SIP network, including: a controller, a controlled party, and a SIP core network; among which,

The controlling party is configured to send SIP protocol control instructions to the controlled party via the SIP core network according to the capabilities of the controlled party, and receive the control result instructions returned by the controlled party forwarded by the SIP core network; the controlled party is configured to receive the SIP protocol control instructions and return control result instructions to the SIP core network;

The SIP core network is configured to forward interactive signaling between the controlling party and the controlled party.

11. The implementation system according to claim 10, wherein the controller includes: a control instruction sending module and a control result receiving module; wherein,

The control instruction sending module is configured to send control instructions of the SIP protocol to the controlled party through the SIP core network according to the capabilities of the controlled party;

The control result receiving module is configured to receive the control result instruction returned by the controlled party forwarded by the SIP core network.

12. The implementation system according to claim 11, wherein the controller further includes: a capability acquisition module configured to use an INFO message of the SIP protocol to send a request for acquiring the capabilities of the controlled party, the request is via SIP The core network forwards it to the controlled party and receives its own capabilities returned by the controlled party.

13. The implementation system according to claim 10, wherein the controlled party includes: a control instruction receiving module, an execution module, and a result return module; wherein,

A control instruction receiving module configured to receive control instructions of the SIP protocol;

The execution module is configured to perform operations according to the control instructions of the SIP protocol and send the execution results to the result return module;

The result return module is configured to return control result instructions to the SIP core network.

14. The implementation system according to claim 13, wherein the controlled party further includes: a capability notification module configured to, after receiving a request from the controlling party to obtain the capabilities of the controlled party, notify the controlling party via the SIP core network Fang returns his own abilities.

15. The implementation system according to claims 10 to 14, wherein the control instructions of the SIP protocol are obtained by extending the message type of the SIP, including: adding a control message type to the message type of the SIP and defining the SIP protocol. Control instruction, the message type of the control instruction of the SIP protocol is a control message type, and the unique identifier, operation object, and operation mode of the control instruction are described in the message header of the control instruction of the SIP protocol, or SDP text, or XML text.

16. The implementation system according to claims 10 to 14, wherein the control instructions of the SIP protocol are obtained by reusing existing SIP messages, including: reusing INVITE, and/or MESSAGE, and/or INFO messages, Add an indication indicating that it is a control instruction in the message header of the reused message, and describe the unique identification, operation object, and operation mode of the control instruction in the message header, or SDP text, or XML text.

17. The implementation system according to claims 10 to 14, wherein the control result instruction is obtained by extending the message type of SIP, including: adding control to the message type of SIP. Control message type, define a control result instruction, the message type of the control result instruction is a control message type, and describe the unique identification, operation object, and operation of the control result instruction in the message header of the control result instruction, or SDP text, or XML text result.

18. The implementation system according to claims 10 to 14, wherein the control result instruction is obtained by reusing existing SIP messages, including: reusing INVITE, and/or

MESSAGE, and/or INFO messages, add an indication indicating that it is a control instruction in the message header of the reused message, and describe the unique identification, operation object, and operation result of the control result instruction in the message header, or SDP text, or XML text. .

19. A control party, including: a control instruction sending module and a control result receiving module; wherein,

20. The controlling party according to claim 19, wherein the controlling party further includes: a capability acquisition module configured to use an INFO message of the SIP protocol to send a request for acquiring the capabilities of the controlled party, and the request is sent via SIP The core network forwards it to the controlled party and receives its own capabilities returned by the controlled party.

21. A controlled party, wherein the controlled party includes: a control instruction receiving module, an execution module, and a result return module; wherein,

22. The controlled party according to claim 21, wherein the controlled party further includes: The capability notification module is configured to, after receiving a request from the controller to obtain the capabilities of the controlled party,

The SIP core network returns its own capabilities to the controller.