US2009245209A1

5G,4G,3G

Title

APPARATUS AND METHOD FOR ALLOCATING OVSF CODES AND I/Q CHANNELS FOR REDUCING PEAK-TO-AVERAGE POWER RATIO IN TRANSMITTING DATA VIA ENHANCED UP-LINK DEDICATED CHANNELS IN WCDMA SYSTEMS

Application Number:

US20090463884

Publication Date:

01-10-2009

Current Assignee:

Family ID:

Application Date:

11-05-2009

Publication Country:

US

Priority Date:

14-02-2004

Declaring Company:

Abstract  Abstract

An apparatus and method in which an Enhanced Uplink Dedicated transport CHannel (EUDCH) is used in a Wideband Code Division Multiple Access (WCDMA) system is provided. In a User Equipment (UE) when physical channels for transmitting EUDCH data are transmitted in addition to existing physical channels a Peak-to-Average Power Ratio (PAPR) of an uplink transport signal increases. The increase in PAPR depends upon Orthogonal Variable Spreading Factor (OVSF) codes allocated to the corresponding physical channels and In-phase/Quadrature-phase (I/Q) channels. Therefore the apparatus and method allocate optimum OVSF codes and I/Q channels to EUDCH-related physical channels in order to minimize an increase in PAPR due to EUDCH.

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Implicitly disclosed patent

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