초록 ▼

Identifying and registering the location of a mobile data reporting device operating within the coverage areas of a cellular mobile radiotelephone (CMR) system. The mobile data reporting device travels freely between CMR systems and is operative to communicate selected data collected from data sourc

Identifying and registering the location of a mobile data reporting device operating within the coverage areas of a cellular mobile radiotelephone (CMR) system. The mobile data reporting device travels freely between CMR systems and is operative to communicate selected data collected from data sources to a data collection system via control channels of the CMR system. The location registration system enables the data collection system to transmit a data message to the mobile data reporting device via the control channels of the particular CMR system within the coverage areas of which the mobile data reporting device resides. Each CMR system transmits a beacon page that distinguishes the CMR system from adjacent CMR systems. When the mobile data reporting device receives a beacon page that is different from a previously received beacon page, the mobile data reporting device generates a beacon-responsive signal. The beacon-responsive signal is transmitted to the data collection system and enables the data collection system to determine the location of the mobile data recording device. Because the particular CMR system is identified, the data collection system can transmit a data message to the mobile data reporting device without flood paging all of the CMR systems in which the mobile data reporting device might be located.

대표청구항 ▼

[ We claim:] [1.]1. In or for a cellular mobile radiotelephone (CMR) system having an array of cells for communicating with cellular mobile radiotelephones within coverage areas of the array of cells, a data message system for communicating selected data collected from a plurality of data sources, t

[ We claim:] [1.]1. In or for a cellular mobile radiotelephone (CMR) system having an array of cells for communicating with cellular mobile radiotelephones within coverage areas of the array of cells, a data message system for communicating selected data collected from a plurality of data sources, the data message system comprising:a plurality of mobile data reporting devices, each of the mobile data reporting devices operative for monitoring the data sources to obtain the selected data, and for transmitting a reverse data message formatted as an initialization signal transmitted by one of the cellular mobile radiotelephones for communication via the CMR system;a mobile switching center (MSC) for receiving the reverse data message via a reverse control channel (RECC) from each of the mobile data reporting devices operating within the coverage areas of the array of cells, and for transmitting a beacon page via a forward control channel (FOCC), wherein:the beacon page is formatted as a page transmitted by an MSC over the FOCC when an incoming call is placed via the MSC to at least one of the cellular mobile radiotelephones, the beacon page comprising a mobile identification number (MIN),the MIN is a reserved MIN, andeach mobile data reporting device has a memory for storing a plurality of MINs, at least one of the MINs corresponding to the reserved MIN;a data collection system for collecting the selected data in response to receiving the reverse data message from the MSC via a communications link;each of the mobile data reporting devices is further operative to receive the beacon page from the MSC, to compare the beacon page with a previously received beacon page, and to transmit a beacon-responsive signal to the MSC via the RECC when the beacon page is different from the previously received beacon page; andthe MSC is operative to forward the beacon-responsive signal to the data collection system via the communications link, the data collection system responsive to the beacon-responsive signal to determine the CMR system within the coverage areas of which a particular mobile data reporting device is operating.