Method and apparatus for adjusting feedback of a remote unit
AssigneeArrayComm, Inc.
InventorsCraig H. Barratt, David M. Parish, Stephen J. Sifferman
Life of this patent
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Abstract
Methods and apparatus implementing spatial processing in a remote unit. In general, in one aspect, the present invention provides a remote unit, that includes a plurality of antennas and a spatial processing unit coupled to the plurality of antennas. The remote unit also includes a performance determination unit to determine a performance of the remote unit and a feedback adjustment unit to adjust feedback transmitted from the remote unit to a device, wherein the adjusted feedback accounts for performance associated with the spatial processing unit.
Claims15
A method for increasing performance of a remote unit that includes an antenna array and is operable in a spatial processing mode, the method comprising:
- operating in a non-spatial processing mode;
- determining a first performance level, the first performance level associated with the non-spatial processing mode;
- determining a second performance level, the second performance level associated with the spatial processing mode;
- determining a relative performance gain from a relative difference between the first and second performance level;
- and
- adjusting feedback transmitted from the remote unit to a base station, the adjusting being based on the determined relative performance gain.
A remote unit, comprising:
- a plurality of antennas having diversity;
- a spatial processing apparatus, the spatial processing apparatus including a plurality of antennas, a plurality of receive paths coupled to the plurality of antennas, a spatial processor coupled to the plurality of received paths;
- a performance determination unit to determine a performance level of the remote unit, the performance determination unit coupled to the spatial processing apparatus;
- a power conservation unit to selectively increase or decrease power consumed by at least a portion of the spatial processing apparatus based on the performance determined by the performance determination unit;
- and
- a feedback adjustment unit to adjust feedback transmitted from the remote unit based on a relative performance gain associated with the spatial processing apparatus, wherein the relative performance gain associated with the spatial processing apparatus is based upon a relative difference in performance level between enabling and disabling at least a portion of the spatial processing apparatus.
A machine-readable medium having stored thereon data representing instructions that, when executed by a processor of a remote unit that includes an antenna array and is operable in a spatial processing mode, causes the remote unit to perform operations comprising:
- operating in a non-spatial processing mode;
- determining a first performance level, the first performance level associated with the non-spatial processing mode;
- determining a second performance level, the second performance level associated with the spatial processing mode;
- determining a relative performance gain from a relative difference between the first and second performance level;
- and
- adjusting feedback transmitted from the remote unit to a base station, the adjusting being based on the determined relative performance gain.
Dependencies are inferred from the claim text.