초록 ▼

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

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.

대표청구항 ▼

[ What is claimed is:] [1.]1. A two-way wireless data network, comprising:a plurality of mobile wireless data terminals, each wireless data terminal capable of transmitting a radio signal of a predetermined frequency over a predetermined range at a first transmission rate;a base station having a rad

[ What is claimed is:] [1.]1. A two-way wireless data network, comprising:a plurality of mobile wireless data terminals, each wireless data terminal capable of transmitting a radio signal of a predetermined frequency over a predetermined range at a first transmission rate;a base station having a radio signal transceiver, said base station serving a first service area and capable of transmitting a radio signal of a predetermined frequency at a second transmission rate; anda message control center coupled to said base station, said message control center being capable of transmitting a radio signal of a predetermined frequency, which is different from said predetermined frequency of said base station, over a second service area encompassing and greater than said first service area;wherein each of said wireless data terminal monitors said predetermined frequency of said base station for two-way communication when said wireless terminal is located within said first service area and monitors said predetermined frequency of said message control center when said wireless terminal is located outside of said first service area, and said first transmission rate is less than said second transmission rate.