Multiple mode personal wireless communications system
First Claim
1. In a multiple mode communications system, a location analysis process including the steps of:
- a) providing radio handsets capable of communicating selectively with cell sites of a cellular radiotelephone network and cordless stations of a local radio network;
b) configuring said cell sites to continuously broadcast data which identify said cell sites;
c) configuring said cordless stations to refrain from continuously broadcasting overhead message data streams;
d) comparing in one of said radio handsets, said data which identify said cell sites with a preselected profile of cell site identity data;
e) generating a trigger signal in response to a match of said data; and
f) transmitting an access request signal from said one radio handset in response to said trigger signal, said access request signal being configured to be received by one of said cordless stations.
3 Assignments
0 Petitions
Accused Products
Abstract
A multiple mode, personal, wireless communications system exists within a radiotelephone network serving general customers and provides additional services to a select group of customers. The system uses handsets (32) which automatically switch between a standard cellular radiotelephone mode of operation (1901) and an enhanced cordless mode (1420) when the handsets (32) are within range of pico cells (26) that are interconnected to the public switched telephone network (20). Each pico cell is controlled via a framework of overlay cells (10b) that operates independently of the radiotelephone network and uses a unique control protocol on a small number of reserved cellular channels. Each pico cell consists of a spectrally dynamic, non-capturing, frequency agile, multi-purpose base station (26) provided at customer-selected locations to cooperate with the overlay cell framework. Each pico cell is capable of supporting multiple handsets (32) and uses low power operation that achieves limited coverage. Each pico cell reduces traffic on the standard cellular radiotelephone network by independently handling registered handsets (32). An alternate line option module (22) provides wireless local interconnect capability to selectively route call traffic between land lines (24) and the standard cellular radiotelephone network. Service control units (12) and host stations (17) facilitate wireless activation and control of each pico cell and handset (32) via the overlay cell framework.
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Citations
15 Claims
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1. In a multiple mode communications system, a location analysis process including the steps of:
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a) providing radio handsets capable of communicating selectively with cell sites of a cellular radiotelephone network and cordless stations of a local radio network; b) configuring said cell sites to continuously broadcast data which identify said cell sites; c) configuring said cordless stations to refrain from continuously broadcasting overhead message data streams; d) comparing in one of said radio handsets, said data which identify said cell sites with a preselected profile of cell site identity data; e) generating a trigger signal in response to a match of said data; and f) transmitting an access request signal from said one radio handset in response to said trigger signal, said access request signal being configured to be received by one of said cordless stations. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. In a multimode wireless handset capable of exchanging communications within a telecommunications network in accordance with a cellular mode of operation over a first set of channels and a cordless mode of operation over a second set of channels,
means for receiving cellular system identity information and land station identity information over one of said first set of channels; -
means, responsive to said system identity information, for selecting a cellular system to monitor while operating in said cellular mode of operation; means for comparing, while said cellular system remains selected, cellular land station identity information with a profile of stored identity information; means responsive to said comparing means for signaling a match; and means, coupled to said signaling means, for transmitting an access request signal from said handset in response to said match, said access request signal being transmitted over one of said second set of channels while said cellular system remains selected. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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Specification