Patent ID: 7519043
Filing Date: 2009-04-14
Classification: H04L,H04W

Abstract:
1. A method of signalling network control messages for use in a packet-switched wireless data network geographically arranged into one or more cells, each cell comprising one or more fixed base stations and a plurality of subscriber terminals arranged in a point-multipoint manner, communications between the base station and subscriber terminals in each cell being performed on a time division multiple access (TDMA) basis, the method being characterized by comprising the steps of: defining a signalling frame for time division duplex transmission of all data packets between the base station and subscriber terminals, wherein said data packets are Asynchronous Transfer Mode (ATM) cells; transmitting the data packets within the defined signalling frame across a first ATM VPI/VCI pair; and transmitting the network control messages as data packets within the defined signalling frame across a second ATM VPI/VCI pair.