IMPROVEMENTS IN OR RELATING TO MOBILE RADIO NETWORK

摘要

A radio infrastructure network has asynchronous transfer mode (ATM) networks 28 in which data is transmitted in fixed size packets (cells) and has one network 8 which interconnects base stations 16 which communicate by r.f. signals to mobile users 20 and wherein data transmission across a base station interface 14 and a mobile station interface 22 is of data contained in only one equal length subdivided section (preferably half) of each cell. A conversion 12 is made at an interface between a fixed telecommunications ATM network 2 and the ATM network 8 which interconnects base stations, the conversion is made between standard ATM cells in the telecommunications infrastructure and half ATM cells in the network which interconnects base station. However, the half ATM cells would be filled out with some additional signalling and routing information in order to resemble and behave like ordinary full ATM cells. A buffer store and rate converter may be used. The hardware in the base station interconnect network can be of the same type as that used in the fixed telecommunications network.