Patent ID: 6229800
Filing Date: 2001-05-08
Classification: H04B,H04Q,H04W

Abstract:
A wireless telecommunications system comprising an interface mechanism for establishing a wireless link between a central terminal and a subscriber terminal within said wireless telecommunications system, the interface mechanism comprising:a radio port slave within the subscriber terminal for receiving an invitation message from the central terminal inviting the subscriber terminal to acquire the wireless link on a radio slot;a radio port manager associated with said radio slot and located within the central terminal for configuring the central terminal to receive from the subscriber terminal an acquisition request message transmitted on said radio slot;the radio port slave being arranged to issue the acquisition request message to said radio port manager on the radio slot specified by the invitation message;the radio port manager being responsive to receiving the acquisition request message to grant the subscriber terminal access to the radio slot;the radio port manager is arranged to determine a transmission rate required by the subscriber terminal for said wireless link, and, upon receipt of the acquisition request message from the radio port slave, to issue a rate switch message to the radio port slave if the radio port slave is not using the required transmission rate;the radio port slave being responsive to the rate switch message to configure the subscriber terminal to use the required transmission rate and to re-issue the acquisition request message to the radio port manager.