Coordinated beamforming
AssigneeCable Television Laboratories, Inc.
InventorsDORIN VIOREL, JENNIFER ANDREOLI-FANG
Life of this patent
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Abstract
Wireless communication facilitated with beamforming between devices and base stations, including when one or more devices are located within overlapping areas or ranges of two or more base stations, is contemplated. The beamforming may be implemented according to a non-joint beamforming methodology and/or a joint beamforming methodology, optionally as determined according to uplink/downlink demands and/or communications between multiple base stations.
Claims20
A method for coordinating beamforming at a radio unit, the method comprising:
- receiving first beam tracking timing information from a first base station;
- receiving second beam tracking timing information from a second base station;
- and
- determining a beam tracking timing position of the radio unit with respect to the second base station as a function of an offset between the second beam tracking timing information and the first beam tracking timing information.
A method for coordinating beamforming with respect to a first radio unit, the method comprising:
- obtaining a first beam tracking matrix for a first base station, the first beam tracking matrix being normalized for the first radio unit;
- obtaining a second beam tracking matrix for a second base station, the second beam tracking matrix being normalized for the first radio unit;
- and
- determining that joint beamforming by the first base station and the second base station for the first radio unit is possible in response to a mathematical function of the first beam tracking matrix and the second beam tracking matrix meeting a predetermined condition.
Dependencies are inferred from the claim text.