Communication apparatus
First Claim
1. Communication apparatus comprising a plurality of mobile communication devices arranged for peer-to-peer communication using TDMA, the arrangement being such that a said device wishing to transmit uses a time slot in each TDMA time-frame used for transmission, the time slot in each frame being the same and wherein the communication devices include means for synchronization to the same TDMA time frame using a synchronization signal, the synchronization signal being transmitted by a said communication device or a GPS satellite.
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Abstract
Communication apparatus comprising a plurality of mobile communication devices arranged for peer-to-peer communication using TDMA, the arrangement being such that a said device wishing to transmit uses a time slot in each TDMA time-frame used for transmission, the time slot in each frame being the same and wherein the communication devices include means for synchronization to the same TDMA time frame using a synchronization signal, the synchronization signal being transmitted by a said communication device or a GPS satellite.
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Citations
21 Claims
- 1. Communication apparatus comprising a plurality of mobile communication devices arranged for peer-to-peer communication using TDMA, the arrangement being such that a said device wishing to transmit uses a time slot in each TDMA time-frame used for transmission, the time slot in each frame being the same and wherein the communication devices include means for synchronization to the same TDMA time frame using a synchronization signal, the synchronization signal being transmitted by a said communication device or a GPS satellite.
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19. A mobile communication device comprising a transmitter, a TDMA burst mode controller and signal processing means, the arrangement being such that an input signal to be transmitted by the communication device is digitally processed by the signal processing means and the burst mode controller encodes the processed signal for transmission by the transmitter in a TDMA time slot in each TDMA time frame used for transmission, the time slot in each frame being the same and means for synchronization of the communication device to the same TDMA time frame as other mobile communication devices in the same net, the synchronization signal being transmitted by a said communication device or a GPS satellite.
- 20. A mobile communication device comprising a receiver, a TDMA burst mode controller and signal processing means, the arrangement being such that the burst mode controller decodes TDMA signals received by the receiver in a time slot in each TDMA time frame used for transmission of the received signal, the time slot in each frame being the same and the signal processing means processes the decoded signals to provide an output and means for synchronization to the same TDMA time frame used for transmission of the received signal using a synchronization signal, the synchronization signal being transmitted by a said communication device or a GPS satellite.
Specification