Patent ID: 6847626
Filing Date: 2005-01-25
Classification: H04L,H04W

Abstract:
1. In a communication system in which a plurality of remote units transmit data to a hub station, a method of communicating comprising: transmitting a block of data from at least one of said remote units to the hub station over a contention-type access communication resource; transmitting a notification message from said at least one remote unit to the hub station over a first non-contention access channel to notify the hub station of transmitting said block of data over said contention-type access communication resource; and in response to receiving said notification message, determining, in said hub station, whether transmitting said block of data over said contention-type communication resource was successful, and transmitting a response message from the hub station to the remote unit to command the remote unit to transmit said block of data over a resource within a second non-contention access communication resource if transmitting said block of data over said contention-type access communication resource was unsuccessful, whereby said remote unit becomes configured to communicate with said hub station using a non-contention communication resource while other remote units of the system remain configured to communicate with the hub station using a contention communication resource.