JP5282119B2 - 送信方法および無線装置 - Google Patents
送信方法および無線装置 Download PDFInfo
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- JP5282119B2 JP5282119B2 JP2011099145A JP2011099145A JP5282119B2 JP 5282119 B2 JP5282119 B2 JP 5282119B2 JP 2011099145 A JP2011099145 A JP 2011099145A JP 2011099145 A JP2011099145 A JP 2011099145A JP 5282119 B2 JP5282119 B2 JP 5282119B2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2602—Signal structure
- H04L27/261—Details of reference signals
- H04L27/2613—Structure of the reference signals
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- 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
- H04B7/0413—MIMO systems
-
- 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
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0667—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of delayed versions of same signal
- H04B7/0671—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of delayed versions of same signal using different delays between antennas
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
Description
h0’=(h−1+2×h0+h1)/4、h1’=(h0+2×h1+h2)/4等として、雑音の影響を減らすことである。
Claims (2)
- CDD(Cyclic Delay Diversity)が適用された複数系列のパケット信号であって、かつ制御信号の後段にデータが配置されたパケット信号を生成する生成部と、
前記生成部において生成したパケット信号を複数のアンテナから送信する送信部とを備え、
前記生成部は、複数のアンテナから送信されるパケット信号におけるCDDのシフト量が小さくなれば、サブキャリア間の伝搬路係数の平滑化処理の許可を示した情報を制御信号に含め、複数のアンテナから送信されるパケット信号におけるCDDのシフト量が大きくなれば、サブキャリア間の伝搬路係数の平滑化処理の禁止を示した情報を制御信号に含めることを特徴とする無線装置。 - CDD(Cyclic Delay Diversity)が適用された複数系列のパケット信号であって、かつ制御信号の後段にデータが配置されたパケット信号を生成するステップと、
生成したパケット信号を複数のアンテナから送信するステップとを備え、
前記生成するステップは、複数のアンテナから送信されるパケット信号におけるCDDのシフト量が小さくなれば、サブキャリア間の伝搬路係数の平滑化処理の許可を示した情報を制御信号に含め、複数のアンテナから送信されるパケット信号におけるCDDのシフト量が大きくなれば、サブキャリア間の伝搬路係数の平滑化処理の禁止を示した情報を制御信号に含めることを特徴とする送信方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US69498705P | 2005-06-30 | 2005-06-30 | |
US60/694,987 | 2005-06-30 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006022170A Division JP4781116B2 (ja) | 2005-06-30 | 2006-01-31 | 無線装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2011155694A JP2011155694A (ja) | 2011-08-11 |
JP5282119B2 true JP5282119B2 (ja) | 2013-09-04 |
Family
ID=37751728
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006022170A Active JP4781116B2 (ja) | 2005-06-30 | 2006-01-31 | 無線装置 |
JP2011099145A Active JP5282119B2 (ja) | 2005-06-30 | 2011-04-27 | 送信方法および無線装置 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
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JP2006022170A Active JP4781116B2 (ja) | 2005-06-30 | 2006-01-31 | 無線装置 |
Country Status (2)
Country | Link |
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US (1) | US8737377B2 (ja) |
JP (2) | JP4781116B2 (ja) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7738356B2 (en) * | 2005-06-28 | 2010-06-15 | Broadcom Corporation | Multiple stream cyclic-shifted delay transmitter |
JP4781116B2 (ja) * | 2005-06-30 | 2011-09-28 | 三洋電機株式会社 | 無線装置 |
CN101682384A (zh) * | 2007-05-31 | 2010-03-24 | 松下电器产业株式会社 | 无线通信移动台装置和循环延迟分集模式判定方法 |
US9326253B2 (en) * | 2007-11-15 | 2016-04-26 | Qualcomm Incorporated | Wireless communication channel blanking |
US8798665B2 (en) * | 2007-11-15 | 2014-08-05 | Qualcomm Incorporated | Beacon-based control channels |
US8761032B2 (en) | 2007-11-16 | 2014-06-24 | Qualcomm Incorporated | Random reuse based control channels |
US9009573B2 (en) * | 2008-02-01 | 2015-04-14 | Qualcomm Incorporated | Method and apparatus for facilitating concatenated codes for beacon channels |
US9107239B2 (en) | 2008-04-07 | 2015-08-11 | Qualcomm Incorporated | Systems and methods to define control channels using reserved resource blocks |
US8675537B2 (en) * | 2008-04-07 | 2014-03-18 | Qualcomm Incorporated | Method and apparatus for using MBSFN subframes to send unicast information |
JP5112353B2 (ja) * | 2009-01-29 | 2013-01-09 | 株式会社東芝 | 無線通信装置及び無線通信方法 |
US8189555B2 (en) * | 2009-02-06 | 2012-05-29 | Qualcomm Incorporated | Communications methods and apparatus for supporting communications with peers using multiple antenna patterns |
JP5504287B2 (ja) * | 2009-02-27 | 2014-05-28 | ノキア シーメンス ネットワークス オサケユキチュア | 循環シフトを使用する単一ユーザ多入力多出力通信のための装置及び方法 |
US10206122B2 (en) * | 2014-02-25 | 2019-02-12 | Mediatek Inc. | Direction finding positioning in wireless local area networks |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5818829A (en) * | 1995-10-18 | 1998-10-06 | Telefonaktiebolaget Lm Ericsson | Method for increasing throughput capacity in a communication system |
FI113721B (fi) * | 1999-12-15 | 2004-05-31 | Nokia Corp | Menetelmä ja vastaanotin kanavaestimaatin iteratiiviseksi parantamiseksi |
US6842487B1 (en) * | 2000-09-22 | 2005-01-11 | Telefonaktiebolaget Lm Ericsson (Publ) | Cyclic delay diversity for mitigating intersymbol interference in OFDM systems |
US7394873B2 (en) * | 2002-12-18 | 2008-07-01 | Intel Corporation | Adaptive channel estimation for orthogonal frequency division multiplexing systems or the like |
US7016319B2 (en) * | 2003-03-24 | 2006-03-21 | Motorola, Inc. | Method and apparatus for reducing co-channel interference in a communication system |
JP4300368B2 (ja) * | 2003-09-30 | 2009-07-22 | 株式会社エヌ・ティ・ティ・ドコモ | マルチユーザ信号から送信信号を生成し、ユーザ信号を抽出する装置及び方法 |
US8432952B2 (en) * | 2003-11-24 | 2013-04-30 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for DS-CDMA interference suppression using code-specific combining |
US7623439B2 (en) * | 2004-05-20 | 2009-11-24 | Webster Mark A | Cyclic diversity systems and methods |
JP2005341317A (ja) * | 2004-05-27 | 2005-12-08 | Toshiba Corp | 無線通信装置 |
US8588203B2 (en) * | 2004-06-04 | 2013-11-19 | Qualcomm Incorporated | Wireless communication system with improved broadcast coverage |
KR20050118031A (ko) * | 2004-06-12 | 2005-12-15 | 삼성전자주식회사 | 순환지연 다이버시티를 이용하여 방송 채널을 효율적으로전송하는 장치 및 방법 |
JP2006022170A (ja) | 2004-07-07 | 2006-01-26 | Mitsuo Miyasaka | ガスバリア性塗工剤 |
US9179319B2 (en) * | 2005-06-16 | 2015-11-03 | Qualcomm Incorporated | Adaptive sectorization in cellular systems |
JP4781116B2 (ja) * | 2005-06-30 | 2011-09-28 | 三洋電機株式会社 | 無線装置 |
-
2006
- 2006-01-31 JP JP2006022170A patent/JP4781116B2/ja active Active
- 2006-06-30 US US11/477,429 patent/US8737377B2/en active Active
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2011
- 2011-04-27 JP JP2011099145A patent/JP5282119B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
JP2007013920A (ja) | 2007-01-18 |
US8737377B2 (en) | 2014-05-27 |
JP4781116B2 (ja) | 2011-09-28 |
US20070021075A1 (en) | 2007-01-25 |
JP2011155694A (ja) | 2011-08-11 |
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