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US 2006/0067207 A1Published application
Radio communication apparatus and radio transmission method
AssigneePanasonic Corporation
InventorKenichi Miyoshi
Life of this patent
Estimating the term…
Abstract
In order to improve reception performance, while reducing the arithmetic amount of a receiver apparatus in a multi-carrier CDMA system, different weightings are performed for the respective spread codes (chips) included in subcarriers in addition to performing weightings for the respective subcarriers.
Claims6
A radio transmission apparatus in a multicarrier CDMA system that transmits a signal by spreading the signal on a plurality of subcarriers, comprising:
- a weighting section that assigns weights which vary from one spreading code to another and from one chip to another to the spread signals;
- and
- a transmission section that multiplexes the weighted signals and transmits the multiplexed signal.
A radio transmission method for a multicarrier CDMA system that transmits a signal by spreading the signal on a plurality of subcarriers, comprising the steps of:
- assigning weights which differ from one spreading code to another and from one chip to another to the spread signals;
- and
- multiplexing the weighted signals and transmitting the multiplexed signal.
Dependencies are inferred from the claim text.