IN2014KN01764A - - Google Patents
Info
- Publication number
- IN2014KN01764A IN2014KN01764A IN1764KON2014A IN2014KN01764A IN 2014KN01764 A IN2014KN01764 A IN 2014KN01764A IN 1764KON2014 A IN1764KON2014 A IN 1764KON2014A IN 2014KN01764 A IN2014KN01764 A IN 2014KN01764A
- Authority
- IN
- India
- Prior art keywords
- node
- transmitting
- pilot signal
- receiving
- transmitting node
- 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
- H04B7/0615—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 weighted versions of same signal
- H04B7/0619—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 weighted versions of same signal using feedback from receiving side
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
-
- 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
- H04B7/0417—Feedback 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
- H04B7/0413—MIMO systems
- H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
-
- 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
- H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
- H04B7/0486—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking channel rank into account
-
- 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
- H04B7/0615—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 weighted versions of same signal
- H04B7/0617—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 weighted versions of same signal for beam forming
-
- 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
- H04B7/0615—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 weighted versions of same signal
- H04B7/0619—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 weighted versions of same signal using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
-
- 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
- H04B7/0684—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 using different training sequences per antenna
-
- 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
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/0204—Channel estimation of multiple channels
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/0224—Channel estimation using sounding signals
- H04L25/0226—Channel estimation using sounding signals sounding signals per se
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
- H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
- H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Transmission System (AREA)
Abstract
Multiple antennas employed at transmitting and receiving nodes (410 420) can significantly increase a MIMO system capacity especially when channel knowledge of link(s) between the transmitting and receiving nodes (410 420) is available at the transmitting node (410). Channel knowledge may be acquired through feedback provided by the receiving node (420) based on a plurality of common pilots transmitted by the transmitting node (410). The common pilots may include legacy and non legacy pilots. If the feedback indicates that data demodulation at the receiving node (420) can be enhanced the transmitting node (410) may also transmit demodulation pilot signal(s) which may coincide with the transmission of data. The receiving node (420) can use the demodulation pilot signal(s) alone or with the common pilot signal(s) to demodulate data received from the transmitting node (420). The transmitting node (410) may notify the receiving node (420) to monitor for the demodulation pilot signal(s) through higher layer signaling and/or scheduling orders over a control channel.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201261592151P | 2012-01-30 | 2012-01-30 | |
PCT/SE2013/050054 WO2013115708A2 (en) | 2012-01-30 | 2013-01-24 | Method, apparatus, and system for using common and demodulation pilot signals in multi-antenna wireless communications |
Publications (1)
Publication Number | Publication Date |
---|---|
IN2014KN01764A true IN2014KN01764A (en) | 2015-10-23 |
Family
ID=47846114
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IN1764KON2014 IN2014KN01764A (en) | 2012-01-30 | 2013-01-24 |
Country Status (5)
Country | Link |
---|---|
US (3) | US8891646B2 (en) |
EP (1) | EP2742641B1 (en) |
JP (1) | JP6093378B2 (en) |
IN (1) | IN2014KN01764A (en) |
WO (1) | WO2013115708A2 (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6093378B2 (en) * | 2012-01-30 | 2017-03-08 | テレフオンアクチーボラゲット エルエム エリクソン(パブル) | Method, apparatus and system for using common pilot signal and demodulated pilot signal in multi-antenna wireless communication |
CN102655486B (en) * | 2012-05-10 | 2014-12-31 | 华为技术有限公司 | Pilot signal transmission method and channel estimation method, device and system |
JP6267688B2 (en) * | 2012-05-11 | 2018-01-24 | テレフオンアクチーボラゲット エルエム エリクソン(パブル) | Method and apparatus for transmitting demodulated pilot in a multi-antenna wireless communication system |
US8885590B2 (en) * | 2012-05-18 | 2014-11-11 | Futurewei Technologies, Inc. | Systems and methods for scheduling multiple-input and multiple-output (MIMO) high-speed downlink packet access (HSDPA) pilot channels |
US9674002B2 (en) | 2012-10-09 | 2017-06-06 | Telefonaktiebolaget Lm Ericsson (Publ) | Channel estimation in a multi-antenna wireless communications system |
WO2014088271A1 (en) * | 2012-12-09 | 2014-06-12 | 엘지전자 주식회사 | Method and device for transmitting and receiving signal in multi-cell cooperative communication system |
US9166663B2 (en) * | 2012-12-14 | 2015-10-20 | Futurewei Technologies, Inc. | System and method for open-loop MIMO communications in a SCMA communications system |
WO2014178615A1 (en) * | 2013-04-29 | 2014-11-06 | 엘지전자 주식회사 | Method and apparatus for transmitting channel state information in wireless communication system |
CN104601281A (en) * | 2014-12-31 | 2015-05-06 | 北京智谷睿拓技术服务有限公司 | Transmission control method and transmission control device |
EP3285407B1 (en) * | 2016-08-16 | 2019-05-15 | Sony Mobile Communications, Inc | Base station and operating method thereof |
US10772024B2 (en) | 2018-01-12 | 2020-09-08 | At&T Intellectual Property I, L.P. | Adaptive multiple antenna transmission scheme for uplink data transmission in wireless communication systems |
US11109432B2 (en) * | 2019-02-15 | 2021-08-31 | At&T Intellectual Property I, L.P. | Location based coreset configuration for transmitting the physical downlink control channel in 5G wireless communication systems |
US20220263687A1 (en) * | 2019-07-29 | 2022-08-18 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for phase-aided adaptive modulation |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6574267B1 (en) * | 1999-03-22 | 2003-06-03 | Golden Bridge Technology, Inc. | Rach ramp-up acknowledgement |
KR101026156B1 (en) * | 2005-09-27 | 2011-04-05 | 노키아 코포레이션 | Pilot structure for multicarrier transmissions |
WO2007108080A1 (en) * | 2006-03-20 | 2007-09-27 | Fujitsu Limited | Base station and its mimo-ofdm communication method |
CN101536353B (en) * | 2006-11-13 | 2014-03-05 | 艾利森电话股份有限公司 | Method and arrangement for pilot pattern based control signalling in MIMO systems |
US8913695B2 (en) * | 2007-03-12 | 2014-12-16 | Qualcomm Incorporated | Hybrid pilot configuration |
US8369450B2 (en) * | 2007-08-07 | 2013-02-05 | Samsung Electronics Co., Ltd. | Pilot boosting and traffic to pilot ratio estimation in a wireless communication system |
KR101542378B1 (en) * | 2007-09-10 | 2015-08-07 | 엘지전자 주식회사 | Allocation method of pilot subcarriers in mimo system |
US8149929B2 (en) * | 2008-06-17 | 2012-04-03 | Telefonaktiebolaget L M Ericsson (Publ) | Receiver and method for processing radio signals using soft pilot symbols |
KR20100088518A (en) * | 2009-01-30 | 2010-08-09 | 엘지전자 주식회사 | Method for transmitting reference signals in downlink multiple input multiple output |
JP5587397B2 (en) * | 2009-03-16 | 2014-09-10 | ロックスター ビーアイディーシーオー,エルピー | Transmission using common and dedicated pilots |
JP2011004212A (en) * | 2009-06-19 | 2011-01-06 | Sharp Corp | Transmission apparatus, reception apparatus, communication system, and communication method |
EP2497214A4 (en) * | 2009-11-08 | 2015-04-22 | Lg Electronics Inc | A method and a base station for controlling downlink transmission power, and a method and a user equipment for receiving a pdsch |
KR101671287B1 (en) * | 2010-08-13 | 2016-11-01 | 삼성전자 주식회사 | Method and apparatus for transmission and reception reference signal in wireless communication system |
CN106027213A (en) * | 2010-10-01 | 2016-10-12 | 交互数字专利控股公司 | Method and apparatus for transmitting pilot on multiple antennas |
US8737247B1 (en) * | 2010-10-08 | 2014-05-27 | Marvell International Ltd. | Data channel noise estimation using pilot channel |
US8599711B2 (en) * | 2011-04-08 | 2013-12-03 | Nokia Siemens Networks Oy | Reference signal port discovery involving transmission points |
US9219994B2 (en) * | 2011-11-09 | 2015-12-22 | Lg Electronics Inc. | Methods for transmitting and receiving downlink data in MBSFN subframe and apparatuses thereof |
JP6093378B2 (en) * | 2012-01-30 | 2017-03-08 | テレフオンアクチーボラゲット エルエム エリクソン(パブル) | Method, apparatus and system for using common pilot signal and demodulated pilot signal in multi-antenna wireless communication |
-
2013
- 2013-01-24 JP JP2014554694A patent/JP6093378B2/en not_active Expired - Fee Related
- 2013-01-24 WO PCT/SE2013/050054 patent/WO2013115708A2/en active Application Filing
- 2013-01-24 IN IN1764KON2014 patent/IN2014KN01764A/en unknown
- 2013-01-24 EP EP13708929.8A patent/EP2742641B1/en not_active Not-in-force
- 2013-01-24 US US13/818,640 patent/US8891646B2/en active Active
-
2014
- 2014-09-15 US US14/486,269 patent/US9077417B2/en active Active
-
2015
- 2015-06-03 US US14/729,135 patent/US9374210B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
EP2742641A2 (en) | 2014-06-18 |
US8891646B2 (en) | 2014-11-18 |
US20150003571A1 (en) | 2015-01-01 |
US9374210B2 (en) | 2016-06-21 |
US20140079147A1 (en) | 2014-03-20 |
WO2013115708A3 (en) | 2013-12-19 |
WO2013115708A2 (en) | 2013-08-08 |
US9077417B2 (en) | 2015-07-07 |
EP2742641B1 (en) | 2016-01-20 |
JP2015513341A (en) | 2015-05-07 |
US20150270937A1 (en) | 2015-09-24 |
JP6093378B2 (en) | 2017-03-08 |
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