Patent ID: 6108549
Filing Date: 2000-08-22
Classification: H04W

Abstract:
In a radio communication system having a source and a target transcoder and a mobile communication unit entering a particular communication mode, a method for passing transcoder operations between the source and the target transcoder, the transcoder operations associated with the mobile communication unit, comprising:(a) converting downlink information at the source transcoder from a first type of information to a second type of information;(b) determining a particular time to pass the transcoder operations associated with the mobile communication unit between the source and the target transcoder;(c) notifying the source and the target transcoder of the particular time to pass the transcoder operations;(d) bypassing the downlink information converting step at the source transcoder to provide downlink information of the first type from the source transcoder to the target transcoder, beginning at the particular time;(e) converting uplink information at the target transcoder from the second type of information to the first type of information, beginning at the particular time;(f) at the source transcoder, monitoring uplink information from the target transcoder for a transition to the first type of uplink information, beginning at the particular time;(g) at the source transcoder bypassing the uplink information converting step, in response to detecting the transition to the first type of uplink information, to inhibit conversion of uplink information of the first type from the target transcoder;(h) at the target transcoder, monitoring downlink information from the source transcoder for a transition to the first type of downlink information, beginning at the particular time; and(i) converting the downlink information from the first type to the second type at the target transcoder, in response to detecting the transition to the first type of downlink information at the target transcoder.