Patent ID: 6154648
Filing Date: 2000-11-28
Classification: H04W

Abstract:
In or for a cellular mobile radiotelephone (CMR) system having an array of cells for communicating with cellular mobile radiotelephones within coverage areas of said array of cells, a data message system for communicating selected data collected from a plurality of remote data sources, said data message system comprising:a plurality of data reporting devices, each of said data reporting devices operative for monitoring a corresponding one of said remote data sources to obtain said selected data and for transmitting a data message containing said selected data;a mobile switching center (MSC) for receiving said data message via a cellular network control channel from each of said data reporting devices operating within said coverage areas of said array of cells; anda data collection system for collecting said selected data in response to receiving said data message from said MSC via a first communications link, said data message formatted as a call origination signal transmitted by one of the cellular mobile radiotelephones when said cellular mobile radiotelephone originates a cellular telephone call for communication via said CMR system;wherein said call origination signal comprises a mobile telephone number data field and an expandable electronic serial number (ESN) data field, thereby enabling the data message system to communicate data messages comprising selected data of varying sizes.