Patent ID: 7460509
Filing Date: 2008-12-02
Classification: H04L,H04W

Abstract:
1. A method for isochronous datagram delivery in a contention-based wireless communication system having a base station and a plurality of sending stations, comprising: scheduling a transmission time for each of the plurality of sending stations wherein each of the plurality of sending stations is in contention with others of the sending stations for transmission times; communicating a scheduled transmission time to a first of the plurality of sending stations, the scheduled transmission time being reserved for transmission of data by the first of the plurality of sending stations; receiving a request from a second of the plurality of sending stations to transmit a substantially isochronous datagram, the request having a higher priority than the first of the plurality of sending stations; interrupting the scheduled transmission time reserved for transmission of data by the first of the plurality of sending stations; during the interruption, transmitting the substantially isochronous datagram from the second of the plurality of sending stations to the base station; and resuming transmission of the data by the interrupted first of the plurality of sending stations.