A software oriented modem architecture for 3G terminal

Author

Mukai, Manabu ; Tomizawa, Takeshi ; Takeda, Daisuke ; Tandai, Tomoya ; Wakutsu, Takashi ; Yamaga, Akira ; Sakai, Atsushi ; Kaburaki, Satoshi ; Miyamoto, Yukimasa ; Hosoyama, Naoki ; Tsurumi, Hiroshi

Author_Institution

Corporate Res. & Dev. Center, Toshiba Corp., Kawasaki, Japan

Volume

4

fYear

2003

fDate

6-9 Oct. 2003

Firstpage

2352

Abstract

In this paper we discuss a software oriented modem LSI. At first, the target system is focused on 3GPP DS-FDD mode and signal processing complexity of the developed software simulator is measured. According to the signal processing requirement, modem functions are partitioned into hardware and software. At the same time, a layered modem architecture which is a kind of multiprocessor architecture is proposed. This architecture can perform parallel processing by plural CPU cores, and therefore, it can lower the CPU clock and make software simple. We consider the support service switching possibility for further discussion. Moreover we have developed an evaluation board system. Referring to the implementation results, we discuss hardware complexity and the amount of memory from the viewpoint of LSI development.

Keywords

3G mobile communication; cellular radio; large scale integration; modems; multiprocessing systems; parallel architectures; programmable logic devices; signal processing; software radio; 3G terminal; 3GPP DS-FDD mode; CPU clock; PLD; evaluation board system; multiprocessor architecture; parallel processing; service switching; signal processing complexity; software defined radio; software oriented modem LSI; target system; Clocks; Computer architecture; Hardware; Large scale integration; Modems; Multimedia systems; Parallel processing; Signal processing; Software measurement; Software performance;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2003. VTC 2003-Fall. 2003 IEEE 58th

ISSN

1090-3038

Print_ISBN

0-7803-7954-3

Type

conf

DOI

10.1109/VETECF.2003.1285950

Filename

1285950