System and method for joint time tracking of multiple paths
AssigneeIntel Corporation
InventorsLev Smolyar, Daniel Yellin, Doron Rainish
Life of this patent
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Abstract
In a receiver having at least two fingers, the fingers tracking at least one path of a multipath channel, a method includes the steps of forming a finger block of at least two of the two fingers and jointly tracking the fingers of said finger block. The step of jointly tracking includes the steps of generating direction metrics of each of a set of possible directions of joint movement of the fingers of the finger block, selecting one of the direction metrics according to a predetermined criterion, and moving the fingers of the finger block in the directions indicated by the selected direction metric.
Claims27
A method comprising:
- measuring powers of at least one finger of a finger block comprising two or more fingers;
- calculating crosscorrelations of the fingers of said finger block with one another;
- and
- deactivating one of the fingers of said finger block when a function of said powers and said crosscorrelations satisfies a predetermined criterion.
A method comprising:
- calculating a crosscorrelation of a finger candidate which is an inactive finger and an active finger whose time delay is closest to the time delay of said finger candidate;
- and
- assigning said finger candidate to a new oath when a composite finger power for said finger candidate satisfies a predetermined criterion, wherein said composite finger power is based at least in part upon said crosscorrelation.
An apparatus comprising:
- a finger power measurement unit to measure powers of at least one finger of a finger block comprising two or more fingers;
- a correlation calculator to calculate crosscorrelations of the fingers of said finger block with one another;
- and
- a deactivation unit to deactivate one of the fingers of said finger block when a function of said powers and said crosscorrelations satisfies a predetermined criterion.
An apparatus comprising:
- a correlation calculator to calculate a crosscorrelation of a finger candidate which is an inactive finger and an active finger whose time delay is closest to the time delay of said finger candidate;
- and
- an assignment unit to assign said finger candidate to a new path when a composite finger power for said finger candidate satisfies a predetermined criterion, wherein said composite finger power is based at least in part upon said crosscorrelation.
A method comprising:
- calculating a crosscorrelation of a finger candidate which is an active finger and another active finger whose time delay is closest to the time delay of said finger candidate;
- and
- reassigning said finger candidate to a new path when a composite finger power for said finger candidate satisfies a predetermined criterion, wherein said composite finger power is based at least in part upon said crosscorrelation.
An apparatus comprising:
- a correlation calculator to calculate a crosscorrelation of a finger candidate which is an active finger and another active finger whose time delay is closest to the time delay of said finger candidate;
- and
- an assignment unit to reassign said finger candidate to a new path when a composite finger power for said finger candidate exceeds the minimum composite finger power of all active fingers, wherein said composite finger power is based at least in art upon said crosscorrelation.
Dependencies are inferred from the claim text.