Shifted channel characteristics for mitigating co-channel interference
AssigneeThe DIRECTV Group, Inc.
InventorsJoseph Santoru, Ernest C. Chen, Shamik Maitra, Dennis Lai, Guangcai Zhou, Tung-Sheng Lin
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Abstract
Methods and apparatuses for minimizing co-channel interference in communications systems are disclosed. A method in accordance with the present invention comprises shifting a characteristic of the first signal with respect to a like characteristic of the second signal to mitigate co-channel interference, and transmitting the first signal and the second signal over different channels of the communication system.
Claims20
A method for minimizing co-channel interference in a communication system having at least a first signal and a second signal transmitted at the same frequency from an antenna, each signal transmitted on different channels within the communication system, comprising:
- shifting a characteristic of the first signal with respect to a like characteristic of the second signal to mitigate co-channel interference;
- and
- transmitting the first signal and the second signal simultaneously from the antenna over different channels of the communication system.
A method for minimizing co-channel interference in a satellite-based communication system having at least a first signal and a second signal transmitted at the same frequency from an antenna, each signal comprising at least a header and a payload, each signal being transmitted on different channels within the communication system, comprising:
- shifting at least one characteristic of the first signal with respect to a corresponding characteristic of the second signal to mitigate co-channel interference between thc first signal and the second signal;
- and
- transmitting the first signal and the second signal simultaneously from the antenna over different channels of the communication system.
Dependencies are inferred from the claim text.