JP4458953B2 - 受信用lsi - Google Patents
受信用lsi Download PDFInfo
- Publication number
- JP4458953B2 JP4458953B2 JP2004185934A JP2004185934A JP4458953B2 JP 4458953 B2 JP4458953 B2 JP 4458953B2 JP 2004185934 A JP2004185934 A JP 2004185934A JP 2004185934 A JP2004185934 A JP 2004185934A JP 4458953 B2 JP4458953 B2 JP 4458953B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- circuit
- determination
- decoded
- reed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0064—Concatenated codes
- H04L1/0065—Serial concatenated codes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0868—Hybrid systems, i.e. switching and combining
- H04B7/0871—Hybrid systems, i.e. switching and combining using different reception schemes, at least one of them being a diversity reception scheme
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0045—Arrangements at the receiver end
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
- H04L1/203—Details of error rate determination, e.g. BER, FER or WER
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
- H04L1/208—Arrangements for detecting or preventing errors in the information received using signal quality detector involving signal re-encoding
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Radio Transmission System (AREA)
- Error Detection And Correction (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
Description
14 復調部
17 ビタビ復号部
18、23 判定信号
19、24 受信品質判定部
21 出力信号
22 リードソロモン復号部
27 メインCPU
29 制御信号
30、31 ADC
32 CDM
Claims (1)
- 独立した2つのアンテナからのダイバシティ信号を2つの信号処理回路を介して復調信号に変換する復調器と、
前記復調信号のビット順序の入れ替えを行って最初のビット配列信号に復元するビットインタリーブ回路と、
前記ビットインタリーブ回路によって最初のビット配列に復元されたデータをビタビコードによって復号するビタビ復号回路と、
前記ビタビ復号回路によって復号されたビタビ復号信号を更に符号化して第1基準信号を形成し、前記第1基準信号と前記最初のビット配列信号とを比較して第1判定信号を出力する第1受信品質判定回路と、
前記ビタビ復号回路によって復号されたビタビ復号信号のバイト順序を入れ替えて最初のバイト配列に復元するバイトインタリーブ回路と、
前記バイトインタリーブ回路によって最初のバイト配列に復元されたデータをリードソロモンコードによって復号するリードソロモン復号回路と、
前記リードソロモン復号回路によって復号されたリードソロモン復号信号を更に符号化して第2基準信号を形成し、前記第2基準信号と前記最初のバイト配列信号とを比較して第2判定信号を出力する第2受信品質判定回路と、
前記第1判定信号及び前記第2判定信号に基づいて、前記2つの信号処理回路の中のいずれか1つもしくは双方を選択し、選択されなかった信号処理回路への電源供給もしくはクロック供給を停止する制御回路と、
前記2つの信号処理回路として 前記2つのアンテナからのダイバシティ信号をそれぞれサンプリングおよび量子化を行ってデジタル信号を出力する第1および第2のアナログ−デジタル変換回路とを有し、
前記第1または前記第2のアナログ−デジタル変換回路は、前記第1判定信号及び前記第2判定信号に応じて前記制御回路により電源供給またはクロック供給が停止されることを特徴とする受信用LSIデバイス。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004185934A JP4458953B2 (ja) | 2004-06-24 | 2004-06-24 | 受信用lsi |
KR1020050054440A KR100639286B1 (ko) | 2004-06-24 | 2005-06-23 | 수신용 lsi 디바이스 및 수신기 |
US11/159,338 US7457383B2 (en) | 2004-06-24 | 2005-06-23 | Receiving LSI device and receiver using the same |
CN2005100823739A CN1713560B (zh) | 2004-06-24 | 2005-06-24 | 接收用lsi器件及接收设备 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004185934A JP4458953B2 (ja) | 2004-06-24 | 2004-06-24 | 受信用lsi |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006013748A JP2006013748A (ja) | 2006-01-12 |
JP4458953B2 true JP4458953B2 (ja) | 2010-04-28 |
Family
ID=35505724
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004185934A Expired - Fee Related JP4458953B2 (ja) | 2004-06-24 | 2004-06-24 | 受信用lsi |
Country Status (4)
Country | Link |
---|---|
US (1) | US7457383B2 (ja) |
JP (1) | JP4458953B2 (ja) |
KR (1) | KR100639286B1 (ja) |
CN (1) | CN1713560B (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101437157B1 (ko) * | 2006-10-10 | 2014-09-03 | 엘지전자 주식회사 | 다중 안테나를 이용한 고속 무선 패킷 통신 방법 및 그단말기 |
EP2109941B1 (en) * | 2007-02-05 | 2013-10-30 | BlackBerry Limited | Apparatus, and associated method, for operating upon received data at a receiving station capable of diversity operation |
US8078094B1 (en) * | 2007-03-21 | 2011-12-13 | At&T Mobility Ii Llc | Universal multi-purpose RF signal distribution system |
CN102047174B (zh) | 2008-05-27 | 2016-01-27 | Lg电子株式会社 | Led背光单元以及使用该led背光单元的液晶显示装置 |
FR2932628B1 (fr) * | 2008-06-17 | 2010-06-11 | Canon Kk | Procede et dispositif de decodage par commutation d'un mode multicopies vers un mode monocopie, produit programme d'ordinateur et moyen de stockage correspondants |
GB2508165B (en) * | 2012-11-21 | 2015-03-18 | Broadcom Corp | Signal selection in a receiver |
EP2736187B1 (en) * | 2012-11-22 | 2017-03-08 | Nxp B.V. | Wireless receiver circuit and method |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4018044A1 (de) * | 1990-06-06 | 1991-12-12 | Philips Patentverwaltung | Empfaenger mit mindestens zwei empfangszweigen |
AU684549B2 (en) * | 1993-09-28 | 1997-12-18 | Kabushiki Kaisha Toshiba | Selective diversity system |
US5566364A (en) * | 1994-01-31 | 1996-10-15 | Nec Corporation | Power saving portable radio communication device with diversity reception |
JP2817707B2 (ja) * | 1996-05-15 | 1998-10-30 | 日本電気株式会社 | 無線選択呼出し受信機付き携帯情報端末装置 |
JP2000196512A (ja) * | 1998-12-25 | 2000-07-14 | Nec Mobile Commun Ltd | 移動体通信装置のダイバ―シチ制御回路およびダイバ―シチ制御方法 |
JP3389153B2 (ja) | 1999-06-16 | 2003-03-24 | 埼玉日本電気株式会社 | 携帯電話機のダイバーシチ制御装置及びそのダイバーシチ制御方法 |
US7024168B1 (en) | 1999-07-07 | 2006-04-04 | Telefonaktiebolaget L M Ericsson (Publ) | Controlled antenna diversity |
US6678508B1 (en) * | 2000-02-07 | 2004-01-13 | Ericsson Inc. | Power conservation method for mobile communications device with two receivers |
JP2002043990A (ja) * | 2000-07-21 | 2002-02-08 | Mitsubishi Electric Corp | 無線通信用受信装置 |
JP2003283413A (ja) | 2002-03-22 | 2003-10-03 | Toshiba Corp | Cdm受信装置とそのパワーセーブ方法 |
FR2844407B1 (fr) * | 2002-09-05 | 2004-12-03 | Thomson Licensing Sa | Procede de selection de canal de transmission et recepteur de signaux a diversite d'antenne |
-
2004
- 2004-06-24 JP JP2004185934A patent/JP4458953B2/ja not_active Expired - Fee Related
-
2005
- 2005-06-23 KR KR1020050054440A patent/KR100639286B1/ko not_active IP Right Cessation
- 2005-06-23 US US11/159,338 patent/US7457383B2/en not_active Expired - Fee Related
- 2005-06-24 CN CN2005100823739A patent/CN1713560B/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US20050286658A1 (en) | 2005-12-29 |
CN1713560A (zh) | 2005-12-28 |
US7457383B2 (en) | 2008-11-25 |
CN1713560B (zh) | 2010-11-03 |
KR100639286B1 (ko) | 2006-10-30 |
JP2006013748A (ja) | 2006-01-12 |
KR20060048491A (ko) | 2006-05-18 |
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