Method and apparatus for multiple accesses to a communications channel
First Claim
1. A method for multiple transmitter access to an electromagnetic communication system, comprising:
- transmitting a first data signal repeated multiple times on a frequency in said communication system, said data signal being transmitted with a first predetermined set of delays between each retransmission;
receiving said first data signal by a receiving means, said receiving means splitting said received first data signal into multiple copies, said copies delayed using a reverse of said predetermined first set of delays, said delayed copies of said received first data signal combined together;
transmitting a second data signal multiple times on said same frequency in said communication system, said second data signal being transmitted with a second predetermined set of delays, wherein said second data signal is different than said first data signal; and
receiving said second data signal, by said receiving means, said receiving means splitting said received second data signal into multiple copies, said copies delayed using the reverse of said predetermined second set of delays, said delayed copies of said received second data signal combined together; and
wherein said first predetermined set of delays and said second predetermined set of delays are unique to each other, and wherein said first predetermined set of delays and said second predetermined set of delays do not have identical timing intervals between retransmissions that are identical between two delay sets.
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Abstract
A method and apparatus for increasing user capacity in a multi-user communication system. The method comprises transmitting a signal multiple times in the communication system with a predetermined delay between each retransmission. A receiver receives the signals and makes multiple delayed copies of the signal which are then summed. A second signal is then transmitted multiple times in the communication system with a different delay time between each retransmission than the first signal, and then received by a receiver which makes multiple delayed copies of this second signal which are then summed and decoded. This process is then used on subsequent signals in the communication system.
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Citations
14 Claims
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1. A method for multiple transmitter access to an electromagnetic communication system, comprising:
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transmitting a first data signal repeated multiple times on a frequency in said communication system, said data signal being transmitted with a first predetermined set of delays between each retransmission; receiving said first data signal by a receiving means, said receiving means splitting said received first data signal into multiple copies, said copies delayed using a reverse of said predetermined first set of delays, said delayed copies of said received first data signal combined together; transmitting a second data signal multiple times on said same frequency in said communication system, said second data signal being transmitted with a second predetermined set of delays, wherein said second data signal is different than said first data signal; and receiving said second data signal, by said receiving means, said receiving means splitting said received second data signal into multiple copies, said copies delayed using the reverse of said predetermined second set of delays, said delayed copies of said received second data signal combined together; and wherein said first predetermined set of delays and said second predetermined set of delays are unique to each other, and wherein said first predetermined set of delays and said second predetermined set of delays do not have identical timing intervals between retransmissions that are identical between two delay sets. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification