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Paper Abstract and Keywords
Presentation 2005-12-15 11:20
Scalable Bus Interface for HSDPA Co-processor Extension
Toshiki Takeuchi, Hiroyuki Igura (NEC), Takeshi Hashimoto (NECEL), Soichi Tsumura, Naoki Nishi (NEC) Link to ES Tech. Rep. Archives: ICD2005-184
Abstract (in Japanese) (See Japanese page) 
(in English) This paper presents a scalable bus developed for HSDPA co-processor extension of W-CDMA digital baseband processors. The use of two separate buses (one for control messages and one for transmission and reception data) in a multi-master bus design helps keep down bus occupancy and CPU loads. The design offers high scalability for future extension and single-chip implementation, as well as a 66% reduction in bus occupancy over that of conventional memory bus connections. Further, with the addition of a MAC accelerator, the design achieves a 45% CPU-load reduction.
Keyword (in Japanese) (See Japanese page) 
(in English) W-CDMA / HSDPA / Baseband / On chip bus / Bus architecture / / /  
Reference Info. IEICE Tech. Rep., vol. 105, no. 475, ICD2005-184, pp. 7-11, Dec. 2005.
Paper # ICD2005-184 
Date of Issue 2005-12-08 (ICD) 
ISSN Print edition: ISSN 0913-5685
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All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee ICD  
Conference Date 2005-12-15 - 2005-12-16 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To ICD 
Conference Code 2005-12-ICD 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Scalable Bus Interface for HSDPA Co-processor Extension 
Sub Title (in English)  
Keyword(1) W-CDMA  
Keyword(2) HSDPA  
Keyword(3) Baseband  
Keyword(4) On chip bus  
Keyword(5) Bus architecture  
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1st Author's Name Toshiki Takeuchi  
1st Author's Affiliation NEC Corporation (NEC)
2nd Author's Name Hiroyuki Igura  
2nd Author's Affiliation NEC Corporation (NEC)
3rd Author's Name Takeshi Hashimoto  
3rd Author's Affiliation NEC Electronics Corporation (NECEL)
4th Author's Name Soichi Tsumura  
4th Author's Affiliation NEC Corporation (NEC)
5th Author's Name Naoki Nishi  
5th Author's Affiliation NEC Corporation (NEC)
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Speaker Author-1 
Date Time 2005-12-15 11:20:00 
Presentation Time 25 minutes 
Registration for ICD 
Paper # ICD2005-184 
Volume (vol) vol.105 
Number (no) no.475 
Page pp.7-11 
#Pages
Date of Issue 2005-12-08 (ICD) 


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