Physical channel structures and cell search method for scalable bandwidth for OFDM radio access in evolved UTRA downlink

被引：0

作者：

Tanno, Motohiro ^{[1
]}

Nagata, Satoshi ^{[1
]}

Kishiyama, Yoshihisa ^{[1
]}

Higuchi, Kenichi ^{[1
]}

Sawahashi, Mamoru ^{[2
]}

机构：

[1] NTT DoCoMo Inc, Radio Access Network Dev Dept, 3-5 Hikari No Oka, Yokosuka, Kanagawa 2398536, Japan

[2] Musashi Inst Technol, Dep Elect & Commun Engn, Setagaya Ku, Tokyo 1588557, Japan

来源：

2007 IEEE WIRELESS COMMUNICATIONS & NETWORKING CONFERENCE, VOLS 1-9 | 2007年

关键词：

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper proposes physical channel structures and a cell search method for OFDM based radio access in the Evolved UTRA (UMTS Terrestrial Radio Access) downlink, which supports multiple scalable transmission bandwidths from 1.25 to 20 MHz. In the proposed physical channel structures, the central sub-carrier of the OFDM signal is located on the frequency satisfying the 200-kHz raster condition regardless of the transmission bandwidth of the cell site. Moreover, the synchronization channel (SCH) and broadcast channel (BCH), which are necessary for cell search, are transmitted from the central part of the entire transmission spectrum with a fixed bandwidth. In the proposed cell search method, a user equipment (UE) acquires the target cell in the cell search process in the initial or connected mode employing the SCH and possibly the reference signal, which are transmitted from the central part of the given transmission bandwidth. After detecting the target cell, the UE decodes the common control information through the BCH, which is transmitted at the same frequency as the SCH, and identifies the transmission bandwidth of the cell to be connected. Computer simulations show the fast cell search time performance using the proposed SCH structure and the cell search method.

引用

页码：1508 / +

页数：2