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Protocol compatibility processing method and apparatus

A protocol compatibility and processing method technology, which is applied in the field of protocol compatibility processing, can solve problems such as signaling process failure, and achieve the effect of improving compatibility and improving interconnection and intercommunication capabilities

Active Publication Date: 2009-12-16
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a protocol compatibility processing method and device to solve the problem in the prior art that the signaling process fails when the receiving end detects that the signaling message contains unrecognizable cells

Method used

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  • Protocol compatibility processing method and apparatus
  • Protocol compatibility processing method and apparatus
  • Protocol compatibility processing method and apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1: Arrange all non-mandatory cells after the mandatory cells in descending order of protocol versions, and send them to the receiving end.

[0037] Specific methods include:

[0038] The sending end obtains the protocol version number of the non-mandatory information element that needs to be carried in the signaling message to be sent;

[0039] The sender fills in the corresponding non-mandatory cells to the back of the mandatory cells in order of the protocol version numbers to which the non-mandatory cells belong;

[0040] The sending end sends the signaling message carrying the mandatory information element and the non-essential information element to the receiving end.

[0041] The following example illustrates the specific arrangement of non-mandatory cells:

[0042] Assuming that a protocol has released 4 versions, the version numbers are 1 / 2 / 3 / 4 in ascending order, and the definition of the same message MSG has been changed in all three versions. In...

Embodiment 2

[0059] Embodiment 2: Assume that the signaling message currently sent by the sender includes three optional cells, which are respectively optional cell D, optional cell E, and optional cell F; wherein the optional Cell D is an optional cell of TLV type whose length can be determined, and the remaining optional cells E and F are other types of optional cells (T type cell, TV type cell or a TLV type cell whose length cannot be determined); the protocol version number of the non-mandatory cell D is 5, the protocol version number of the non-mandatory cell E is 4, and the protocol version number of the non-mandatory cell F is 3, Then the arrangement order of non-mandatory cells is:

[0060] Arrange the optional cell D in the first position after the mandatory cell;

[0061] Arrange the non-mandatory cell F in the second position behind the mandatory cell;

[0062] The optional cell E is arranged at the third position after the mandatory cell.

[0063] According to the method in ...

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Abstract

The invention discloses a protocol compatibility processing method and device. The method of the present invention includes: in the signaling message sent by the sending end carrying the non-mandatory cell determined by the sending end according to the protocol version supported by itself, following the mandatory cell according to the protocol version to which the non-mandatory cell belongs Arrange optional cells from low to high and send to the receiver. Or in the signaling message sent by the sender, the non-mandatory cells of the TLV type with a determinable length are prioritized after the mandatory cells, and the non-mandatory cells of other types are in the order from low to high of the protocol version they belong to Arranged and sent to the receiver. The device of the invention comprises: a signaling message receiving unit, a cell sorting unit and a signaling message sending unit. The method and device of the invention can ensure that the equipment supporting the low protocol version can correctly analyze the signaling sent by the equipment supporting the high protocol version.

Description

technical field [0001] The present invention relates to the communication field, in particular to a protocol compatibility processing method and device when the sending end and the receiving end of signaling messages support different protocol versions. Background technique [0002] Any signaling message has a sending end and a receiving end. If the protocol versions supported by the sending end and the receiving end are inconsistent, there will be a protocol compatibility problem between devices with a high protocol version and a low protocol version. [0003] In the message structure definition of the communication protocol, some information elements (information elements, IE) are stipulated as essential information elements, that is, mandatory information elements, and other information elements are optional information elements. The non-mandatory cells appear at any position after the mandatory cells in the message code stream, that is, the relative position of the non-m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06
Inventor 樊博浩
Owner HUAWEI TECH CO LTD
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