Multicast session handover

Details Multicast session handover Multicast session handover

2001-11-19

2011-11-29

Rego, Dominic E (Department: 2618)

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

C455S503000, C455S524000

Reexamination Certificate

active

08068832

ABSTRACT:
A method and system for performing multicast broadcast handover in a wireless data network are disclosed. Each cell broadcasts administrative announcements over a logical channel to mobile terminals. The announcements indicate which multicast broadcasts are available in specified cells, as well as connection information for each cell. The mobile terminals may tune to a multicast broadcast as defined by the administrative announcements. While tuned to the multicast, the mobile terminal continues to receive administrative announcements. As the broadcast fades out or is otherwise interrupted, the mobile terminal can retune to the same multicast broadcast in another cell, based on the cell connection information included in the previously received administrative announcements.

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