Wireless Communications System and Method
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Abstract
The Invention is directed to a mobile communications system having improved spectral efficiency. The invention is further directed to methods and apparatus to achieve this improved spectral efficiency. In the mobile communications system communication with a plurality of mobile terminals is provided by a base station. Within the system terminals are adapted to communicate with one or more adjacent similar terminals to establish groups of terminals, called micro-cells. Each terminal within a micro-cell receives signals from the base station and then performs a first processing step on these signals. These processed signals are shared with all the other terminals within the micro-cell. Each terminal then performs a second processing step on the information it has received from all the other terminals within the micro-cell which enables it to derive a signal intended for reception by that terminal. The technique is applicable to both the uplink (user to base station) and the down link (base station to user) and also to peer to peer (user to user) communication.
6 Citations
24 Claims
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1-4. -4. (canceled)
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5. A method for operating a first mobile terminal of a group of mobile terminals, the method comprising:
at a first mobile terminal; generating a first symbol sequence; receiving at least a second symbol sequence from a second mobile terminal of the group; generating a transmit signal based at least on the first symbol sequence and the second symbol sequence using code division multiplexing; transmitting the transmit signal to a communication station, wherein the communication station includes a plurality of antennas. - View Dependent Claims (6, 7, 8, 9, 10, 11)
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12. A first mobile terminal comprising:
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a processor, and memory storing program instructions, wherein the program instructions, when executed by the processor, cause the processor to implement; generating a first symbol sequence, wherein the first mobile terminal belongs to a group of mobile terminals; receiving at least a second symbol sequence from a second mobile terminal of the group; generating a transmit signal based at least on the first symbol sequence and the second symbol sequence using code division multiplexing; transmitting the transmit signal to a communication station, wherein the communication station includes a plurality of antennas. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A non-transitory memory medium for operating a first mobile terminal, wherein the memory stores program instructions, wherein the program instructions, when executed by a processor, cause the processor to implement:
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generating a first symbol sequence, wherein the first mobile terminal belongs to a group of mobile terminals; receiving at least a second symbol sequence from a second mobile terminal of the group; generating a transmit signal based at least on the first symbol sequence and the second symbol sequence using code division multiplexing; transmitting the transmit signal to a communication station, wherein the communication station includes a plurality of antennas. - View Dependent Claims (20, 21, 22, 23, 24)
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Specification