Automatic retransmission request

Details Automatic retransmission request Automatic retransmission request

H - Electricity

04

L

H04L 1/00 (2006.01) H04Q 7/36 (2006.01) H04Q 7/30 (2006.01) H04Q 7/32 (2006.01) H04Q 7/34 (2006.01) H04Q 7/38 (2006.01)

Patent

CA 2296777

A method for obtaining a report from a mobile station on the status of frames comprising an entire message transmitted to the mobile station is disclosed. First, a polling request is sent to the mobile station from a base station. A status report is then sent to the base station. The polling request specifies whether the mobile station should send the status report on a reservation basis (using a reserved frame) or on a contention basis (using an idle frame). The mobile station then transmits a bit map to the communication system to indicate which frames have been correctly received by the mobile station at the point when it received the polling request.

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