Method and apparatus for selecting a beam combination of multiple-input multiple-output antennas
First Claim
1. A method of wireless communication in a multiple-input multiple-output (MIMO) wireless communication system comprising:
- (a) providing a first wireless transmit/receive unit (WTRU) having a plurality of antennas where at least one of the antennas is capable of producing a plurality of beams such that the WTRU is capable of producing a plurality of different beam combinations for MIMO wireless communications;
(b) the first WTRU forming a beam combination using the plurality of antennas in connection with a MIMO wireless communication with a second WTRU;
(c) the first WTRU measuring a selected quality metric with respect to the beam combination;
(d) the first WTRU repeating steps (b) and (c) with respect to one or more different beam combinations to produce a plurality of quality metric measurements; and
(e) the first WTRU selecting a desired beam combination for MIMO wireless communications with the second WTRU based on the quality metric measurements.
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Abstract
A method and apparatus for selecting a beam combination of multiple-input multiple-output (MIMO) antennas are disclosed. A wireless transmit/receive unit (WTRUs) includes a plurality of antennas to generate a plurality of beams for supporting MIMO. At least one antenna is configured to generate multiple beams, such that various beam combinations can be produced and a desired beam combination selected for conducting wireless communication with another WTRU. A quality metric is measured with respect to each or subset of the possible beam combinations. A desired beam combination for MIMO transmission and reception is selected based on the quality metric measurements.
146 Citations
33 Claims
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1. A method of wireless communication in a multiple-input multiple-output (MIMO) wireless communication system comprising:
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(a) providing a first wireless transmit/receive unit (WTRU) having a plurality of antennas where at least one of the antennas is capable of producing a plurality of beams such that the WTRU is capable of producing a plurality of different beam combinations for MIMO wireless communications;
(b) the first WTRU forming a beam combination using the plurality of antennas in connection with a MIMO wireless communication with a second WTRU;
(c) the first WTRU measuring a selected quality metric with respect to the beam combination;
(d) the first WTRU repeating steps (b) and (c) with respect to one or more different beam combinations to produce a plurality of quality metric measurements; and
(e) the first WTRU selecting a desired beam combination for MIMO wireless communications with the second WTRU based on the quality metric measurements. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of wireless communication in a multiple-input multiple-output (MIMO) wireless communication system comprising:
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(a) providing a first wireless transmit/receive unit (WTRU) having a plurality of antennas;
(b) the first WTRU performing radio frequency (RF) beamforming for generating a plurality of beams;
(c) the first WTRU measuring a quality metric on each of the beams; and
(d) the first WTRU selecting a subset of the beams in connection with a MIMO wireless communication with a second WTRU based on the quality metric.
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16. A wireless transmit/receive unit (WTRU) configured for multiple-input multiple-output (MIMO) wireless communication, the WTRU comprising:
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a plurality of antennas configured to generate a plurality of beam combinations, at least one antenna being configured to generate multiple beams;
an antenna beam selection control component configured to control the antennas to produce selected beam combinations;
a transceiver configured to process data for transmission and reception via the antennas, the transceiver including a quality metric measurement unit configured to measure a quality metric of wireless MIMO communication signals; and
a beam selector coupled to the antenna beam selection control component and the transceiver and configured to select a desired beam combination for MIMO transmission and reception based on the quality metric measurements. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. A wireless transmit/receive unit (WTRU) configured for multiple-input multiple-output (MIMO) wireless communication, the WTRU comprising:
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a plurality of antennas;
a radio frequency (RF) beamformer configured to perform an RF beamforming for generating a plurality of beams;
a beam selection control component configured to select a subset of beams among the generated beams;
a transceiver configured to process data for transmission and reception via the antennas, the transceiver including a quality metric measurement unit configured to measure a quality metric on each of the beams; and
a beam selector coupled to the beam selection control component and the transceiver and configured to select a subset of the beams for MIMO transmission and reception based on the quality metric measurements.
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Specification