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Method and system for acquiring call path information

A technology of path information and acquisition method, applied in the field of acquisition of call path information, can solve the problem of inability to acquire path information from a source node to a destination node, etc.

Active Publication Date: 2012-10-10
ZTE CORP
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  • Claims
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AI Technical Summary

Problems solved by technology

[0007] The present invention provides a method and system for obtaining call path information to at least solve the problem in the related art that when a GMPLS call spans multiple ASs, the path information from the source node to the destination node cannot be obtained during the call process

Method used

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  • Method and system for acquiring call path information
  • Method and system for acquiring call path information
  • Method and system for acquiring call path information

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Embodiment Construction

[0041] Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0042] figure 1 is a flowchart of a method for acquiring call path information according to an embodiment of the present invention. Such as figure 1 As shown, the method may include the following processing steps:

[0043] Step S102: the PCE node acquires a call path calculation request message;

[0044] Step S104: The PCE node calculates call path information, and returns a call path calculation response message to the sender of the call path calculation request message, wherein the call path calculation response message carries call path information from the sender to the call receiver.

[0045] In related technologies, when a GMPLS call spans multiple ASs, the path information from the source ...

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PUM

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Abstract

The invention discloses a method and a system for acquiring call path information. The method comprises the steps as follows: acquiring a call path calculation request message by a PCE (Path Computation Element) node, wherein the call path calculation request message is used for acquiring call path information from a sending party of the call path calculation request message to a call receiving party from the PCE node, the sending party comprises a call path source node, and the call receiving party comprises a call path destination node; and calculating the call path information by the PCE node, and returning a call path calculation response message to the sending party, wherein the call path calculation response message carries the call path information. According to the technical scheme provided by the invention, dynamic path calculation of GMPLS (Generalized Multi-Protocol Label Switching) call is realized in a cross-domain network.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and system for acquiring call path information. Background technique [0002] A call is a service provided to a user at the network level, and a connection is a means by which the network provides the service. The Automatic Switched Optical Network (ASON) control plane regulates the separation of call and connection control, and its purpose is to reduce redundant call control information of intermediate connection control nodes. [0003] The call control function is provided at the User Network Interface (UNI for short) or at the inter-domain gateway (that is, the E-NNI reference point). The intermediate device only needs to support the connection control function and does not need to provide the call control function. The call controller at the domain boundary performs operations according to the inter-domain interaction policy defined by the operator. Depending on w...

Claims

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Application Information

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IPC IPC(8): H04L12/56
Inventor 夏欣林雪峰王家昱
Owner ZTE CORP
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