RFCI mapping to support backward-compatible transcoder-free operation for UMTS

A transcoder-free operation (TrFO) implementation is disclosed that provides backward-compatibility, or interworking between nodes supporting Iu UP version 1 and version 2. A media gateway (MGW) on the terminating side of a prospective call detects mismatching RFCI values between an originating and...

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Bibliographische Detailangaben
Hauptverfasser:	AGARWAL ANJANA, NEULIST JAKOB J, GAFRICK JOHN M, MAKARAJU MARIDI R, VERMA CHARU
Format:	Patent
Sprache:	eng
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY MULTIPLEX COMMUNICATION TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION WIRELESS COMMUNICATIONS NETWORKS
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Beschreibung
Zusammenfassung:	A transcoder-free operation (TrFO) implementation is disclosed that provides backward-compatibility, or interworking between nodes supporting Iu UP version 1 and version 2. A media gateway (MGW) on the terminating side of a prospective call detects mismatching RFCI values between an originating and terminating side of a prospective call, such as may occur when an originating MGW supports Iu UP version 2 and a terminating Radio Network Controller (RNC) supports Iu UP version 1. The terminating MGW performs a mapping and translation function to convert RFCI values associated with Iu UP version 2 to those of version 1, or vice versa, so as to accommodate the terminating RNC supporting Iu UP version 1.