Method and apparatus for extending coverage in a cellular communication system
First Claim
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1. A base site for transmitting data packets in a cellular communication system including:
- a microcomputer;
a receiver coupled to the microcomputer for receiving mobile unit position data from a global positing satellite;
a transmitter and a second receiver coupled to the microcomputer for communicating with mobile units within the coverage area of the base site;
protocol associated with the microcomputer for establishing a traffic route and a general direction of movement of a particular mobile unit;
the second receiver receiving data packets;
and circuitry for causing the transmitter to transmit data packets addressed to the particular mobile unit to mobile units along the traffic route of the particular mobile unit.
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Abstract
Method for transmitting data packets between base site and designated mobile unit outside coverage area of base site comprises: identifying data packet; transmitting data packet to unit along calculated traffic path; determining if unit is designated unit; and retransmitting data packet from that unit until receiving unit is designated unit.
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Citations
9 Claims
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1. A base site for transmitting data packets in a cellular communication system including:
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a microcomputer; a receiver coupled to the microcomputer for receiving mobile unit position data from a global positing satellite; a transmitter and a second receiver coupled to the microcomputer for communicating with mobile units within the coverage area of the base site; protocol associated with the microcomputer for establishing a traffic route and a general direction of movement of a particular mobile unit; the second receiver receiving data packets; and circuitry for causing the transmitter to transmit data packets addressed to the particular mobile unit to mobile units along the traffic route of the particular mobile unit. - View Dependent Claims (2, 3)
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- 4. A mobile unit for receiving and retransmitting data packets, said mobile unit comprising a microcomputer, circuitry coupled to said microcomputer for identifying from data packet the address of a designated mobile unit, circuitry coupled to said microcomputer for determining from the data packet the last known location of the designated mobile unit and circuitry for determining the most logical path or route of the designated mobile unit whereby said microcomputer can retransmit the data packet in a direction along the most logical path or route of the designated mobile unit.
Specification