Gwcom, Inc.

Kwok Choi

Raymond Chin

A wireless data network provides message control center broadcasting over a paging channel covering a wide service area and base stations distributed in said wide service area providing two-way communication over a local channel in local service areas within said wide service area. The wireless data network provides asymmetrical data transmission rates between the base station and subscriber wireless data terminals. In addition, the base stations and wireless data terminals can each transmit at different data rates according to desired range and to minimize probability of collision. In one embodiment, a registration procedure is provided to establish continuous communication between a wireless data terminal and a base station in the local channel.

Communication protocol for a wireless data system

A wireless data network, including a base station and multiple mobile wireless terminals, implements a synchronous 2-way communication protocol in which the availability of a communication channel is signalled by the base station in a control packet. The multiple mobile wireless terminals compete for acquisition of the communication channel by sending a request packet, upon detecting from the control packet that the communication channel is available. The base station grants the channel by acknowledging the request packet of a selected one of the mobile wireless data terminal. The mobile wireless data terminal communicates with the base station over the communication channel subsequent to acquisition. Upon the wireless data terminal relinquishing the communication channel, the base station sends out the next control packet indicating that the communication channel is again available.

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Pleasanton, CA, United States of America

Kwok Choi