A flexible signalling protocol for supporting switched AAL type 2 connections in UMTS terrestrial radio access networks

This paper presents AAL2 signalling, a new signalling protocol, which is capable of establishing and releasing end-to-end AAL2 connections through a network of AAL2 switches and endpoints. It briefly discusses the applicability of the new protocol in UMTS terrestrial radio access networks and describes a new protocol architecture (called bearer-independent signalling protocol architecture) which makes possible easy deployment of the protocol in theoretically any network environment.