US2021194537A1PendingUtilityA1
Spreading a response signal using a first set of orthogonal sequences and a reference signal using a second set of shorter orthogonal sequences
Assignee: OPTIS WIRELESS TECHNOLOGY LLCPriority: Jun 15, 2007Filed: Mar 10, 2021Published: Jun 24, 2021
Est. expiryJun 15, 2027(~0.9 yrs left)· nominal 20-yr term from priority
H04W 72/52H04W 88/08H04L 5/0055H04L 5/0053H04L 5/005H04L 5/0016H04L 1/1858H04J 13/18H04J 13/0074H04J 13/0062H04J 13/0048H04J 13/0003H04B 1/7103H04B 1/707
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Claims
Abstract
A radio communication apparatus includes spreading circuitry that spreads a response signal using a first set of orthogonal sequences to produce a spread response signal. Each orthogonal sequence in the first set has a first length. The spreading circuitry also spreads a reference signal using a second set of orthogonal sequences to produce a spread reference signal. Each orthogonal sequence in the second set has a second length that is shorter than the first length. A radio transmitter transmits the spread response signal and the spread reference signal.
Claims
exact text as granted — not AI-modifiedWhat is claimed is:
1 . A signal spreading method comprising:
spreading, using first spreading circuitry, a response signal using a first set of orthogonal sequences, to produce a spread response signal, each orthogonal sequence in the first set having a first length; spreading, using the first spreading circuitry, a reference signal using a second set of orthogonal sequences, to produce a spread reference signal, each orthogonal sequence in the second set having a second length that is shorter than the first length; transmitting, using a transmitter, the spread response signal and the spread reference signal.Join the waitlist — get patent alerts
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