Patent ID: 6707826
Filing Date: 2004-03-16
Classification: H04W

Abstract:
A bandwidth efficient method of wireless communication among simultaneous multiple users where at least one of the users is a wireless subscriber using an adjustable vocoder, comprising the steps of:monitoring for voice activity from a plurality of sources on a channel for a predetermined time period; detecting voice activity among the plurality of sources during the predetermined time period; and if voice activity is detected from only a first source, then coding the voice activity from the first source and transmitting a full-rate packet of data to the wireless subscriber; if voice activity is detected from at least a first source and a second source amounting to N sources among the plurality of sources, then coding from at least the first source and the second source using a 1/Ni-rate vocoder to obtain N different 1/Ni rate data packets and combining the N 1/Ni-rate data packets from at least the first source and the second source before transmitting a predefined sized packet of data to the wireless subscriber.