Method and apparatus for determining an operating condition in a communications system
AssigneeArrayComm, Inc.
InventorPaul Petrus
Life of this patent
Estimating the term…
Abstract
A communication system environment estimation apparatus and method. In one embodiment, an environment estimation apparatus according to the teachings of the present invention includes a plurality of antenna elements and a receiver coupled to receive uplink signals from the plurality of antenna elements. The apparatus also includes a signal processor coupled to receive the uplink signals to select an estimation of an environment responsive to the uplink signals received from the plurality of antenna elements.
Claims15
A method of characterizing an environment, comprising:
- receiving uplink signals from a plurality of antenna array elements;
- estimating an uplink spatial signature of the received uplink signals;
- calculating a geometric uplink spatial signature of the received uplink signals;
- finding a correlation between the estimated uplink spatial signature and the geometric uplink spatial signature;
- and
- selecting a low clutter environment estimation if the correlation between the estimated uplink spatial signature and the geometric uplink spatial signature is greater than a low clutter threshold.
An apparatus, comprising:
- a plurality of antenna elements;
- a receiver coupled to receive uplink signals from the plurality of antenna elements;
- and
- a signal processor coupled to the receiver, the signal processor to select an estimation of an environment responsive to the uplink signals received by the plurality of antenna elements, wherein the signal processor is to select a low clutter environment estimation if a correlation between an estimated uplink spatial signature and a geometric uplink spatial signature is greater than a low clutter estimation threshold.
A tangible machine-readable medium having stored thereon instructions, which when executed cause:
- receiving uplink signals from a plurality of antenna array elements;
- storing the uplink signals received from the plurality of antenna array elements;
- estimating an uplink spatial signature responsive to the uplink signals received from the plurality of antenna array elements;
- estimating a dominant angle of arrival responsive to the uplink signals received from the plurality of antenna array elements;
- calculating a geometric uplink spatial signature responsive to the uplink signals received from the plurality of antenna array elements and the estimated dominant angle of arrival;
- finding a correlation between the estimated uplink spatial signature and the geometric spatial signature;
- and
- selecting a low clutter environment estimation if the correlation between the estimated uplink spatial signature and the geometric spatial signature is greater than a low clutter threshold.
A method of characterizing an environment, comprising:
- receiving uplink signals from a plurality of antenna array elements;
- and
- estimating an uplink spatial signature from the received uplink signals;
- calculating a geometric uplink spatial signature from the received uplink signals;
- finding a correlation between the estimated uplink spatial signature and the geometric uplink spatial signature;
- and
- selecting a low clutter environment if the correlation between the estimated uplink spatial signature and the geometric uplink spatial signature is greater than a low clutter threshold.
Dependencies are inferred from the claim text.