METHOD AND DEVICE FOR BEFORE-RINGING RADIO VOICE CALL CONTINUITY

Provided are a method and device for before-ringing radio voice call continuity (bSRVCC). The method comprises: a service continuity application server (SCC AS) receiving a bSRVCC switching request of a calling terminal (S410); the SCC AS adjudging whether a first message is received before receivin...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	NI, Ming, MU, Lingjiang, GAO, Yang
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION WIRELESS COMMUNICATIONS NETWORKS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	Provided are a method and device for before-ringing radio voice call continuity (bSRVCC). The method comprises: a service continuity application server (SCC AS) receiving a bSRVCC switching request of a calling terminal (S410); the SCC AS adjudging whether a first message is received before receiving the bSRVCC switching request, wherein the first message comprises a message sent by a called terminal and carrying an answer session description protocol (Answer SDP) (S412); and in the case where the SCC AS has determined that the first message is not received before receiving the bSRVCC switching request, the SCC AS caching the bSRVCC switching request, and ending a pre-determined message at the SCC AS before receiving the first message, wherein the pre-determined message comprises a message sent by the called terminal and not carrying the Answer SDP (S414). By means of the present invention, the problem that the bSRVCC procedure in a related specification of the 3 rd -Generation Partnership Project (3GPP) is non-enforceable is solved, thereby providing an enforceable bSRVCC procedure.