WO2009008180A1 - 無線通信装置およびcdd遅延量決定方法 - Google Patents
無線通信装置およびcdd遅延量決定方法 Download PDFInfo
- Publication number
- WO2009008180A1 WO2009008180A1 PCT/JP2008/001872 JP2008001872W WO2009008180A1 WO 2009008180 A1 WO2009008180 A1 WO 2009008180A1 JP 2008001872 W JP2008001872 W JP 2008001872W WO 2009008180 A1 WO2009008180 A1 WO 2009008180A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- antennas
- cyclic delay
- cdd
- communication device
- radio communication
- Prior art date
Links
Classifications
-
- 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
- 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
- H04B7/12—Frequency diversity
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radio Transmission System (AREA)
Abstract
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/668,653 US20100266060A1 (en) | 2007-07-12 | 2008-07-11 | Radio communication device and method for determining delay amount of cdd |
JP2009522530A JPWO2009008180A1 (ja) | 2007-07-12 | 2008-07-11 | 無線通信装置およびcdd遅延量決定方法 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007-183475 | 2007-07-12 | ||
JP2007183475 | 2007-07-12 | ||
JP2008-027755 | 2008-02-07 | ||
JP2008027755 | 2008-02-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009008180A1 true WO2009008180A1 (ja) | 2009-01-15 |
Family
ID=40228371
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2008/001872 WO2009008180A1 (ja) | 2007-07-12 | 2008-07-11 | 無線通信装置およびcdd遅延量決定方法 |
Country Status (3)
Country | Link |
---|---|
US (1) | US20100266060A1 (ja) |
JP (1) | JPWO2009008180A1 (ja) |
WO (1) | WO2009008180A1 (ja) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010105345A1 (en) | 2009-03-16 | 2010-09-23 | Nortel Networks Limited | Transmission using common and dedicated pilots |
JP2012095060A (ja) * | 2010-10-27 | 2012-05-17 | Nec Corp | 無線送信装置、無線受信装置、クロック同期方法および無線通信システム |
CN102484514A (zh) * | 2009-06-24 | 2012-05-30 | 株式会社泛泰 | 使用自适应循环延迟分集的协调多点发射/接收方法、使用该方法的系统侧装置和接收装置、以及用于确定协调基站集的方法 |
JP2020517159A (ja) * | 2017-04-06 | 2020-06-11 | エルジー エレクトロニクス インコーポレイティド | 無線通信システムにおいて端末が多重アンテナを用いてCDD(cyclic delay diversity)による通信を行う方法及びそのための装置 |
JP2020096264A (ja) * | 2018-12-11 | 2020-06-18 | 日本電信電話株式会社 | 光伝送システム、光送信機、光受信機及び伝達関数推定方法 |
US10958324B2 (en) | 2019-08-05 | 2021-03-23 | Shure Acquisition Holdings, Inc. | Transmit antenna diversity wireless audio system |
WO2022162786A1 (ja) * | 2021-01-27 | 2022-08-04 | 日本電信電話株式会社 | 置局設計支援方法及び置局設計支援装置 |
US12119905B2 (en) | 2023-03-29 | 2024-10-15 | Shure Acquisition Holdings, Inc. | Transmit antenna diversity wireless audio system |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8374271B2 (en) * | 2007-01-08 | 2013-02-12 | Cisco Technology, Inc. | Method and system for resizing a MIMO channel |
US9137076B2 (en) * | 2009-10-30 | 2015-09-15 | Qualcomm Incorporated | Method and apparatus for mutiplexing reference signal and data in a wireless communication system |
US8767873B2 (en) * | 2011-12-02 | 2014-07-01 | Qualcomm Incorporated | Systems and methods for communication over a plurality of frequencies and streams |
US9402256B2 (en) | 2012-08-08 | 2016-07-26 | Blackberry Limited | Method and system having reference signal design for new carrier types |
US9184889B2 (en) * | 2012-08-08 | 2015-11-10 | Blackberry Limited | Method and system having reference signal design for new carrier types |
US10826663B2 (en) * | 2013-03-13 | 2020-11-03 | Huawei Technologies Co., Ltd. | System and method for determining a pilot signal |
US9444576B2 (en) | 2014-05-09 | 2016-09-13 | Qualcomm Incorporated | Updates to MU-MIMO rate adaptation algorithm |
US11805499B2 (en) * | 2019-12-13 | 2023-10-31 | Qualcomm Incorporated | Increase diversity of slot aggregation using slot-specific cyclic delay diversity |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20050118031A (ko) * | 2004-06-12 | 2005-12-15 | 삼성전자주식회사 | 순환지연 다이버시티를 이용하여 방송 채널을 효율적으로전송하는 장치 및 방법 |
US8121211B2 (en) * | 2007-03-26 | 2012-02-21 | Cisco Technology, Inc. | Adaptive switching techniques for hybrid automatic repeat request systems |
-
2008
- 2008-07-11 WO PCT/JP2008/001872 patent/WO2009008180A1/ja active Application Filing
- 2008-07-11 US US12/668,653 patent/US20100266060A1/en not_active Abandoned
- 2008-07-11 JP JP2009522530A patent/JPWO2009008180A1/ja not_active Withdrawn
Non-Patent Citations (6)
Title |
---|
LG ELECTRONICS: "Link-level Evaluation of the CDD-based Precoding under Open-loop Scenario", 3GPP TSG RAN WG1 MEETING #49BIS R1-072871, 25 June 2007 (2007-06-25), pages 1 - 7, XP050106551 * |
NTT DOCOMO: "Investigation on Precoding Scheme Using Cyclic Delay Diversity in #49 R1-072421", 3GPP TSG RAN WG1 MEETING #49 R1-072421, May 2007 (2007-05-01), pages 1 - 10, XP050106147 * |
NTT DOCOMO: "Multi-Degree Cyclic Delay Diversity with Frequency-domain Channel Dependent Scheduling", 3GPP TSG RAN WG1 MEETING #46 R1-062107, September 2006 (2006-09-01), pages 1 - 6, XP050102652 * |
QUALCOMM EUROPE: "Large Delay CDD Based Precoding for 4Tx", 3GPP TSG-RAN WG1 #49BIS R1-072743, 25 June 2007 (2007-06-25), pages 1 - 12, XP050106428 * |
RICHTER G. ET AL.: "On Time-Varying Clyclic Delay Diversity", EUROPEAN TRANSACTIONS ON TELECOMMUNICATIONS, 2005 * |
SIEMENS: "Time varying CDD/CSD", 3GPP TSG RAN WG1 LTE R1-062302, September 2006 (2006-09-01), pages 1 - 7, XP050102827 * |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010105345A1 (en) | 2009-03-16 | 2010-09-23 | Nortel Networks Limited | Transmission using common and dedicated pilots |
KR20120013952A (ko) * | 2009-03-16 | 2012-02-15 | 록스타 비드코, 엘피 | 공통 및 전용 파일럿들을 사용하는 송신 |
EP2430769A1 (en) * | 2009-03-16 | 2012-03-21 | Rockstar Bidco LP | Transmission using common and dedicated pilots |
EP2430769A4 (en) * | 2009-03-16 | 2012-11-28 | Research In Motion Ltd | TRANSFER WITH GENERAL AND DEDICATED PILOTS |
US9344243B2 (en) | 2009-03-16 | 2016-05-17 | Blackberry Limited | Transmission using common and dedicated pilots |
KR101693063B1 (ko) * | 2009-03-16 | 2017-01-04 | 블랙베리 리미티드 | 공통 및 전용 파일럿들을 사용하는 송신 |
CN102484514A (zh) * | 2009-06-24 | 2012-05-30 | 株式会社泛泰 | 使用自适应循环延迟分集的协调多点发射/接收方法、使用该方法的系统侧装置和接收装置、以及用于确定协调基站集的方法 |
JP2012095060A (ja) * | 2010-10-27 | 2012-05-17 | Nec Corp | 無線送信装置、無線受信装置、クロック同期方法および無線通信システム |
JP2020517159A (ja) * | 2017-04-06 | 2020-06-11 | エルジー エレクトロニクス インコーポレイティド | 無線通信システムにおいて端末が多重アンテナを用いてCDD(cyclic delay diversity)による通信を行う方法及びそのための装置 |
US11349538B2 (en) | 2017-04-06 | 2022-05-31 | Lg Electronics Inc. | Method for performing, by terminal, communication according to cyclic delay diversity (CDD) using multiple antennas in wireless communication system and apparatus therefor |
JP2020096264A (ja) * | 2018-12-11 | 2020-06-18 | 日本電信電話株式会社 | 光伝送システム、光送信機、光受信機及び伝達関数推定方法 |
WO2020121901A1 (ja) * | 2018-12-11 | 2020-06-18 | 日本電信電話株式会社 | 光伝送システム、光送信機、光受信機及び伝達関数推定方法 |
JP7193717B2 (ja) | 2018-12-11 | 2022-12-21 | 日本電信電話株式会社 | 光伝送システム、光送信機、光受信機及び伝達関数推定方法 |
US10958324B2 (en) | 2019-08-05 | 2021-03-23 | Shure Acquisition Holdings, Inc. | Transmit antenna diversity wireless audio system |
US11303335B2 (en) | 2019-08-05 | 2022-04-12 | Shure Acquisition Holdings, Inc. | Transmit antenna diversity wireless audio system |
US11641227B2 (en) | 2019-08-05 | 2023-05-02 | Shure Acquisition Holdings, Inc. | Transmit antenna diversity wireless audio system |
WO2022162786A1 (ja) * | 2021-01-27 | 2022-08-04 | 日本電信電話株式会社 | 置局設計支援方法及び置局設計支援装置 |
US12119905B2 (en) | 2023-03-29 | 2024-10-15 | Shure Acquisition Holdings, Inc. | Transmit antenna diversity wireless audio system |
Also Published As
Publication number | Publication date |
---|---|
US20100266060A1 (en) | 2010-10-21 |
JPWO2009008180A1 (ja) | 2010-09-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2009008180A1 (ja) | 無線通信装置およびcdd遅延量決定方法 | |
WO2013003230A3 (en) | Configurable multi-dimensional driver and receiver | |
WO2007038312A3 (en) | Apparatus and method for simultaneous testing of multiple orthogonal frequency division multiplexed transmitters with single vector signal analyzer | |
WO2011106457A3 (en) | Channel state information reference signals | |
WO2011096646A3 (en) | Method and apparatus for transmitting downlink reference signal in wireless communication system supporting multiple antennas | |
WO2008003087A3 (en) | Method and apparatus for selection mechanism between ofdm-mimo and lfdm-simo | |
WO2009002078A3 (en) | Method of transmitting of data and configuring a codebook in multi antenna system | |
MX2012008309A (es) | Metodo y aparato para transmitir señal de referencia de enlace descendente en sistma de comunicacion inalambrica que soporta multiples antenas. | |
WO2009153809A3 (en) | Precoding for single transmission streams in multiple antenna systems | |
WO2007038279A3 (en) | Apparatus and method for simultaneous testing of multiple orthogonal frequency division multiplexed transmitters with single vector signal analyzer | |
US20130322560A1 (en) | System and method for distinguishing between antennas in hybrid mimo rdn systems | |
TW200615775A (en) | Integrated circuit and signal transmission system | |
WO2006076322A3 (en) | Pattern diversity to support a mimo communications system and associated methods | |
WO2007037637A3 (en) | A method and apparatus for channel estimation | |
ATE545249T1 (de) | Ofdm-mimo-hochfrequenzübertragungssystem | |
WO2007127902A3 (en) | Methods and apparatus to allocate reference signals in wireless communication systems | |
WO2007024935A3 (en) | Method and apparatus for antenna selection in a mimo system | |
WO2008098225A3 (en) | Mimo transmission with rank-dependent precoding | |
WO2009059004A3 (en) | Method and apparatus to display signal strength | |
RU2009120372A (ru) | Улучшенное выделение пилотного сигнала в системах с множеством несущих с вырезанием частоты | |
JP2008530909A5 (ja) | ||
MX2009007448A (es) | Metodos y sistemas para diversidad de retardo ciclico y precodificacion de señales de radio combinadas. | |
WO2008103317A3 (en) | Precoded pilot transmission for multi-user and single user mimo communications | |
WO2007084988A3 (en) | Method and apparatus for pilot multiplexing in a wireless communication system | |
WO2007004027A3 (en) | Apparatus, method and computer program product providing closed loop transmit antenna operation for systems using multiple antennas |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 08776831 Country of ref document: EP Kind code of ref document: A1 |
|
DPE1 | Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101) | ||
ENP | Entry into the national phase |
Ref document number: 2009522530 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 12668653 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 08776831 Country of ref document: EP Kind code of ref document: A1 |