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US 2009/0213905 A1Published application
Use of orthogonal or near orthogonal codes in reverse link
AssigneeIPR Licensing, Inc.
InventorsJames A. Proctor, JR., Pertti O. Alapuranen
Life of this patent
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Abstract
An apparatus for use with a shared access communication channel is disclosed. The chipping rate of a first group of terminals is determined. Transmissions on the shared access communication channel are encoded using first pseudorandom noise (PN) code and a phase shift at the first chipping rate and an orthogonal spreading code having a chipping rate less than the first chipping rate. The apparatus may receive a feedback channel assignment and may receive an indication of a change in timing on the assigned feedback channel.
Claims12
An apparatus for wireless communication, the apparatus comprising:
- a receiver configured to receive an indication of a first chipping rate that is used by a first group of terminals;
- and
- a transmitter configured to transmit using a first pseudorandom noise (PN) code and a phase shift at the first chipping rate, and an orthogonal spreading code having a chipping rate less than the first chipping rate.
Dependencies are inferred from the claim text.