Method and apparatus for power estimation in an orthogonal coded communication system
AssigneeMotorola, Inc.
InventorFuyun Ling
Life of this patent
Estimating the term…
Abstract
A method and apparatus is provided for estimating signal power. The estimating is accomplished by correlating (206) an input data vector (204) with a set of mutually orthogonal codes to generate a set of output values. The input data vector (204) consists of data samples of a received orthogonal coded signal (202). Each output value corresponds to a measure of confidence that the input data vector is substantially similar to one of the orthogonal codes from within the set of mutually orthogonal codes. Finally, an estimate of the power of the received orthogonal coded signal is generated (208) as a nonlinear function of the set output values.
Claims26
An apparatus comprising a signal power estimator, the signal power estimator comprising:
- (a) orthogonal code detector means for correlating an input data vector with a set of mutually orthogonal codes to generate a set of output values, the input data vector comprising data samples of a received orthogonal coded signal, each output value corresponding to a measure of confidence that the input data vector is substantially similar to one of the orthogonal codes from within the set of mutually orthogonal codes;
- and
- (b) estimating means, operatively coupled to the orthogonal code detector means, for generating an estimate of the power of the received orthogonal coded signal as a nonlinear function of the set of output values.
A method of estimating signal power, comprising:
- (a) correlating an input data vector with a set of mutually orthogonal codes to generate a set of output values, the input data vector comprising data samples of a received orthogonal coded signal, each output value corresponding to a measure of confidence that the input data vector is substantially similar to one of the orthogonal codes from within the set of mutually orthogonal codes;
- and
- (b) generating an estimate of the power of the received orthogonal coded signal as a nonlinear function of the set of output values.
Dependencies are inferred from the claim text.