Increasing Uplink Data Rates in HSPA by Modified Mapping of OVSF Codes

Author

Bakowski, Krzysztof ; Langowski, Adrian ; Wesolowski, Krzysztof

Author_Institution

Dept. of Wireless Commun., Poznan Univ. of Technol., Poznan, Poland

fYear

2013

fDate

2-5 Sept. 2013

Firstpage

1

Lastpage

5

Abstract

The paper is devoted to the studies on modifications of mapping of the OVSF channelization codes onto the data and control channels in HSUPA, aiming at increasing the uplink data rates. Appropriate selection of mapping can result in a link throughput gain of up to 28% as compared with the standard HSUPA transmission. An intensive HSUPA link level simulation campaign has been performed to investigate many possible mappings, to optimize the ratios of traffic to pilot channel powers and to measure parameters of the transmitted signal such as the peak-to-average power ratio and the cubic metric. The most important and representative results are summarized in this paper.

Keywords

3G mobile communication; channel coding; HSPA; OVSF channelization code; high speed uplink packet access; intensive HSUPA link level simulation; modified mapping; orthogonal variable spreading factor; standard HSUPA transmission; uplink data rate; Encoding; Measurement; Peak to average power ratio; Proposals; Standards; Throughput; Uplink;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference (VTC Fall), 2013 IEEE 78th

Conference_Location

Las Vegas, NV

ISSN

1090-3038

Type

conf

DOI

10.1109/VTCFall.2013.6692236

Filename

6692236