TIME SHIFTING OF CO-CHANNEL DATA TRANSMISSIONS TO REDUCE CO-CHANNEL INTERFERENCE
First Claim
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1. A transmitting apparatus comprising:
- a source of first data;
a time reference;
a time offset allocator, coupled to the source of first data and to the time reference, for delaying the first data by a time offset relative to the time reference to produce first time-delayed data;
a transmitter, coupled to the time offset allocator, for modulating, amplifying and transmitting the first time-delayed data to produce first transmitted data;
a processor, coupled to the time reference, the time offset allocator and the transmitter, for controlling operation of the time offset allocator; and
a memory, coupled to the processor, for storing second data and instructions for the processor to use, the second data comprising data which represents a first delay value,wherein the transmitting apparatus is configured to delay the first data by a first time delay depending on the time reference and the first delay value.
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Abstract
A cellular communications system in which transmission of control signals for plural different remote stations is so displaced in time that the transmission of control signals for one remote station does not interfere with the transmission of control signals for another remote station, the displacement being sufficient to prevent contemporaneous reception of control signals by the remote station intended for the other remote station.
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Citations
25 Claims
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1. A transmitting apparatus comprising:
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a source of first data; a time reference; a time offset allocator, coupled to the source of first data and to the time reference, for delaying the first data by a time offset relative to the time reference to produce first time-delayed data; a transmitter, coupled to the time offset allocator, for modulating, amplifying and transmitting the first time-delayed data to produce first transmitted data; a processor, coupled to the time reference, the time offset allocator and the transmitter, for controlling operation of the time offset allocator; and a memory, coupled to the processor, for storing second data and instructions for the processor to use, the second data comprising data which represents a first delay value, wherein the transmitting apparatus is configured to delay the first data by a first time delay depending on the time reference and the first delay value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 12, 13, 14, 15)
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- 8. A method of transmitting control data and information data to plural destinations, in which method the transmission of control data for different destinations is offset in time to avoid collision of the data at a single destination, and the power of the transmission of control data is adjusted commensurate with the distance to the intended destination for that control data.
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16. A communication system comprising at least one base station and plural remote stations in which:
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traffic data and signaling data for the remote stations are transmitted by the at least one base station in defined sequences of traffic frames and signaling frames; at least two of the remote stations are configured to receive their respective traffic frames and signaling frames simultaneously and at the same frequency; and the sequences of the at least two remote stations are so defined that the signaling frames for each of the two remote stations occupy different positions in the defined sequences. - View Dependent Claims (17, 18, 19)
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20. A transmitting apparatus for use in a base station of a communication system, the transmitting apparatus comprising:
means for transmitting traffic data and signaling data for at least two remote stations in defined sequences of traffic frames and signaling frames so that the sequences of the at least two remote stations are so defined that the signaling frames for each of the two remote stations occupy different positions in the defined sequences. - View Dependent Claims (21, 22, 23)
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24. A transmitting apparatus comprising:
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a processor; memory in electronic communication with the processor; instructions stored in the memory, the instructions being executable by the processor to; transmit traffic data and signaling data for at least two remote stations in defined sequences of traffic frames and signaling frames so that the sequences of the at least two remote stations are so defined that the signaling frames for each of the two remote stations occupy different positions in the defined sequences.
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25. A computer program product comprising:
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computer-readable media comprising; code for causing a computer to transmit data, comprising instructions to; transmit traffic data and signaling data for at least two remote stations in defined sequences of traffic frames and signaling frames so that the sequences of the at least two remote stations are so defined that the signaling frames for each of the two remote stations occupy different positions in the defined sequences.
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Specification