Multimode radio communication system
First Claim
1. A multimode radio communication system comprising:
- a base station connected to a wire communication network, the base station periodically transmitting a sync signal, each period of the sync signal being divided into a plurality of time slots; and
a plurality of radio communication terminals wirelessly connected to said base station, said plurality of radio communication terminals operating in synchronization with the sync signal transmitted from said base station, and a first radio communication terminal of said plurality of radio communication terminals being capable of indirectly communicating with a second radio communication terminal of said plurality of radio communication terminals through said base station using a first time slot of said plurality of time slots, said first time slot assigned to said first radio communication terminal for communication with said base station, and said first radio communication terminal being capable of directly communicating with the second radio communication terminal using a second time slot of said plurality of time slots, said second time slot assigned to said first radio communication terminal for peer-to-peer communication.
1 Assignment
0 Petitions
Accused Products
Abstract
Like a conventional one-way pager system, a two-way pager system is provided in which a message is received by paging from a base station and a message responding to the received message is returned to the base station. In this system, direct communication and peer-to-peer communication between terminals are performed. All the terminals included in the service area of the base station are always synchronized with sync signals paged from the base station. No special infrastructure is therefore required for synchronizing the terminals with the sync signals to perform the peer-to-peer communication. Furthermore, since each of the terminals receives a paging signal during the peer-to-peer communication, it can respond to a paging call.
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Citations
12 Claims
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1. A multimode radio communication system comprising:
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a base station connected to a wire communication network, the base station periodically transmitting a sync signal, each period of the sync signal being divided into a plurality of time slots; and a plurality of radio communication terminals wirelessly connected to said base station, said plurality of radio communication terminals operating in synchronization with the sync signal transmitted from said base station, and a first radio communication terminal of said plurality of radio communication terminals being capable of indirectly communicating with a second radio communication terminal of said plurality of radio communication terminals through said base station using a first time slot of said plurality of time slots, said first time slot assigned to said first radio communication terminal for communication with said base station, and said first radio communication terminal being capable of directly communicating with the second radio communication terminal using a second time slot of said plurality of time slots, said second time slot assigned to said first radio communication terminal for peer-to-peer communication. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification