Reducing multi-cell interference using cooperative random beam forming
First Claim
1. A method comprising:
- cooperatively at a plurality of base stations generating a plurality of randomesque beams for transmission of signals for analysis by a plurality of receiver stations, said plurality of randomesque beams comprising a set of randomesque beams associated with each base station of said plurality of base stations, each set of randomesque beams having different beam configurations for use with respect to each of a plurality of frequency resources, wherein a beam configuration used with respect to a first frequency resource of said plurality of frequency resources by a first base station of said plurality of base stations is substantially orthogonal to beam configurations used with respect to said first frequency resource by all other base stations of said plurality of base stations.
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Accused Products
Abstract
Systems and methods which implement cooperative random or quasi-random beam forming as between a plurality of base stations in a wireless network to reduce multi-cell interference are shown. For example, a plurality of base stations in a wireless network cooperate to provide frequency resources, such as channels, subchannels, subcarriers, etc., in a plurality of randomesque beams. In operation, subscriber stations preferably analyze signals as received on a plurality of the randomesque beams to determine one or more “best” beams for use in communication between the subscriber station and base station. Assuming an identified beam is available for use by the subscriber station, payload communications may be provided using one or more beams identified by the subscriber station as a “best” beam. The base stations of the wireless network preferably cooperate to periodically reform the randomesque beams.
63 Citations
24 Claims
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1. A method comprising:
cooperatively at a plurality of base stations generating a plurality of randomesque beams for transmission of signals for analysis by a plurality of receiver stations, said plurality of randomesque beams comprising a set of randomesque beams associated with each base station of said plurality of base stations, each set of randomesque beams having different beam configurations for use with respect to each of a plurality of frequency resources, wherein a beam configuration used with respect to a first frequency resource of said plurality of frequency resources by a first base station of said plurality of base stations is substantially orthogonal to beam configurations used with respect to said first frequency resource by all other base stations of said plurality of base stations. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method comprising:
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cooperatively at a plurality of base stations generating a plurality of randomesque beams for transmission of signals for analysis by a plurality of receiver stations, said randomesque beams having not been configured for use with respect to any particular receiver station of said receiver stations; and determining a randomesque beam assignment for use in providing communications with respect to receiver stations of said plurality of receiver stations using information received from receiving stations of said plurality of receiving stations regarding preferred randomesque beams of said plurality of randomesque beams. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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21. A system comprising:
a plurality of base stations adapted to cooperatively generate a plurality of randomesque beams for transmission of a signal for analysis by a plurality of subscriber stations, cooperatively determine a randomesque beam assignments for use in providing communications with respect to subscriber stations of said plurality of subscriber stations using information received from subscriber stations of said plurality of subscriber stations regarding preferred randomesque beams of said plurality of randomesque beams, and cooperatively periodically change beamforming vectors for said randomesque beams. - View Dependent Claims (22, 23, 24)
Specification