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a : asn1@asn1.org 13 April 2011 • 11:54PM -0400

[Asn1] Regarding ASN's Extension Containers Utility.
by Varun Gupta

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Hi


I understand that the purpose of using Extension Containers is to add new
information Elements in the existing Messages.

Would it be possible for someone to give me a document reference or certain
examples on using Extension Containers.



Below is an extact from 3GPP MAP interface document . In case I want to add
an IE in private extension containers , How do I do it ?

What is the relevance of Extension ID , Extension Type ?


ExtensionContainer ::= SEQUENCE {
privateExtensionList [0]PrivateExtensionList OPTIONAL,
pcs-Extensions [1]PCS-Extensions OPTIONAL,
...}
ETSI
3GPP TS 29.002 version 9.0.0 Release 9 419 ETSI TS 129 002 V9.0.0 (2010-02)
SLR-ArgExtensionContainer ::= SEQUENCE {
privateExtensionList [0]PrivateExtensionList OPTIONAL,
slr-Arg-PCS-Extensions [1]SLR-Arg-PCS-Extensions OPTIONAL,
...}
PrivateExtensionList ::= SEQUENCE SIZE (1..maxNumOfPrivateExtensions) OF
PrivateExtension
PrivateExtension ::= SEQUENCE {
extId MAP-EXTENSION.&extensionId
({ExtensionSet}),
extType MAP-EXTENSION.&ExtensionType
({ExtensionSet}{@extId}) OPTIONAL}
maxNumOfPrivateExtensions INTEGER ::= 10
ExtensionSet MAP-EXTENSION ::=
{...
-- ExtensionSet is the set of all defined private extensions
}
-- Unsupported private extensions shall be discarded if received.
PCS-Extensions ::= SEQUENCE {
...}
SLR-Arg-PCS-Extensions ::= SEQUENCE {
...,
na-ESRK-Request




Thanks



Best Regards

Varun

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