JP5731005B2 - 超高スループットワイヤレスシステムのためのチャネル状態情報フィードバックフレームフォーマットおよびフィードバックルール - Google Patents
超高スループットワイヤレスシステムのためのチャネル状態情報フィードバックフレームフォーマットおよびフィードバックルール Download PDFInfo
- Publication number
- JP5731005B2 JP5731005B2 JP2013536785A JP2013536785A JP5731005B2 JP 5731005 B2 JP5731005 B2 JP 5731005B2 JP 2013536785 A JP2013536785 A JP 2013536785A JP 2013536785 A JP2013536785 A JP 2013536785A JP 5731005 B2 JP5731005 B2 JP 5731005B2
- Authority
- JP
- Japan
- Prior art keywords
- bits
- snr
- mimo
- frame
- matrix
- 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.)
- Active
Links
- 239000011159 matrix material Substances 0.000 claims description 130
- 238000000354 decomposition reaction Methods 0.000 claims description 55
- 238000000034 method Methods 0.000 claims description 54
- 238000012545 processing Methods 0.000 claims description 41
- 238000004891 communication Methods 0.000 claims description 40
- 230000005540 biological transmission Effects 0.000 description 30
- 238000004590 computer program Methods 0.000 description 14
- 230000006870 function Effects 0.000 description 11
- 238000005070 sampling Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 8
- 230000009471 action Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 238000013459 approach Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000001413 cellular effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 230000011664 signaling Effects 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 238000004422 calculation algorithm Methods 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Images
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
- 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
- H04B7/0615—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
- H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radio Transmission System (AREA)
- Mobile Radio Communication Systems (AREA)
Applications Claiming Priority (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US40697710P | 2010-10-26 | 2010-10-26 | |
| US61/406,977 | 2010-10-26 | ||
| US40781710P | 2010-10-28 | 2010-10-28 | |
| US40788610P | 2010-10-28 | 2010-10-28 | |
| US61/407,886 | 2010-10-28 | ||
| US61/407,817 | 2010-10-28 | ||
| US13/280,776 US8908600B2 (en) | 2010-10-26 | 2011-10-25 | Channel state information feedback frame format and feedback rules for very high throughput wireless systems |
| US13/280,776 | 2011-10-25 | ||
| PCT/US2011/057912 WO2012058327A1 (en) | 2010-10-26 | 2011-10-26 | Channel state information feedback frame format and feedback rules for very high throughput wireless systems |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2014228361A Division JP5902278B2 (ja) | 2010-10-26 | 2014-11-10 | 超高スループットワイヤレスシステムのためのチャネル状態情報フィードバックフレームフォーマットおよびフィードバックルール |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2013542688A JP2013542688A (ja) | 2013-11-21 |
| JP2013542688A5 JP2013542688A5 (enExample) | 2014-01-23 |
| JP5731005B2 true JP5731005B2 (ja) | 2015-06-10 |
Family
ID=44925664
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2013536785A Active JP5731005B2 (ja) | 2010-10-26 | 2011-10-26 | 超高スループットワイヤレスシステムのためのチャネル状態情報フィードバックフレームフォーマットおよびフィードバックルール |
| JP2014228361A Active JP5902278B2 (ja) | 2010-10-26 | 2014-11-10 | 超高スループットワイヤレスシステムのためのチャネル状態情報フィードバックフレームフォーマットおよびフィードバックルール |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2014228361A Active JP5902278B2 (ja) | 2010-10-26 | 2014-11-10 | 超高スループットワイヤレスシステムのためのチャネル状態情報フィードバックフレームフォーマットおよびフィードバックルール |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US8908600B2 (enExample) |
| EP (1) | EP2636162B1 (enExample) |
| JP (2) | JP5731005B2 (enExample) |
| CN (1) | CN103201963B (enExample) |
| ES (1) | ES2716242T3 (enExample) |
| HU (1) | HUE042234T2 (enExample) |
| WO (1) | WO2012058327A1 (enExample) |
Families Citing this family (43)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5322327B2 (ja) | 2009-01-05 | 2013-10-23 | マーベル ワールド トレード リミテッド | Mimo通信システムのコードブックのプリコーディング |
| US8385441B2 (en) | 2009-01-06 | 2013-02-26 | Marvell World Trade Ltd. | Efficient MIMO transmission schemes |
| US8238483B2 (en) | 2009-02-27 | 2012-08-07 | Marvell World Trade Ltd. | Signaling of dedicated reference signal (DRS) precoding granularity |
| CN102405603B (zh) * | 2009-04-21 | 2015-04-29 | 马维尔国际贸易有限公司 | 具有选择性波束衰减的波束成形方法、设备及系统 |
| KR101296002B1 (ko) * | 2009-08-27 | 2013-08-14 | 엘지전자 주식회사 | 무선랜 시스템에서의 변조 및 코딩 방식 설정 방법 및 이를 지원하는 장치 |
| US8675794B1 (en) | 2009-10-13 | 2014-03-18 | Marvell International Ltd. | Efficient estimation of feedback for modulation and coding scheme (MCS) selection |
| US8917796B1 (en) | 2009-10-19 | 2014-12-23 | Marvell International Ltd. | Transmission-mode-aware rate matching in MIMO signal generation |
| US8325860B2 (en) | 2009-11-09 | 2012-12-04 | Marvell World Trade Ltd. | Asymmetrical feedback for coordinated transmission systems |
| CN102696270B (zh) * | 2009-11-13 | 2016-06-29 | 交互数字专利控股公司 | 在无线通信中用于支持管理动作以得到甚高吞吐量的方法和设备 |
| JP5637486B2 (ja) | 2009-12-17 | 2014-12-10 | マーベル ワールド トレード リミテッド | 交差偏波アンテナ用のmimoフィードバックスキーム |
| DE202011111016U1 (de) | 2010-01-07 | 2018-05-02 | Marvell World Trade Ltd. | Signalisierung von dedizierten Referenzsignal (DRS) - Vorcodierungsgranularität |
| JP5258002B2 (ja) | 2010-02-10 | 2013-08-07 | マーベル ワールド トレード リミテッド | Mimo通信システムにおける装置、移動通信端末、チップセット、およびその方法 |
| US8687741B1 (en) | 2010-03-29 | 2014-04-01 | Marvell International Ltd. | Scoring hypotheses in LTE cell search |
| JP2012100254A (ja) | 2010-10-06 | 2012-05-24 | Marvell World Trade Ltd | Pucchフィードバックのためのコードブックサブサンプリング |
| US8615052B2 (en) * | 2010-10-06 | 2013-12-24 | Marvell World Trade Ltd. | Enhanced channel feedback for multi-user MIMO |
| US9130631B2 (en) | 2010-11-03 | 2015-09-08 | Qualcomm Incorporated | Beamforming feedback format |
| KR101424368B1 (ko) | 2010-11-26 | 2014-08-01 | 엘지전자 주식회사 | 무선랜 시스템에서 링크 적응을 기반으로 한 채널 정보 보고 방법 및 이를 지원하는 장치 |
| US9048970B1 (en) | 2011-01-14 | 2015-06-02 | Marvell International Ltd. | Feedback for cooperative multipoint transmission systems |
| US8861391B1 (en) | 2011-03-02 | 2014-10-14 | Marvell International Ltd. | Channel feedback for TDM scheduling in heterogeneous networks having multiple cell classes |
| EP2692068B1 (en) | 2011-03-31 | 2019-06-19 | Marvell World Trade Ltd. | Channel feedback for cooperative multipoint transmission |
| US8902921B2 (en) * | 2011-08-16 | 2014-12-02 | Mediatek Singapore Pte Ltd. | Methods for inter-user interference indication feedback and usage in MU-MIMO wireless systems |
| WO2013068916A1 (en) | 2011-11-07 | 2013-05-16 | Marvell World Trade Ltd. | Codebook sub-sampling for frequency-selective precoding feedback |
| US9020058B2 (en) | 2011-11-07 | 2015-04-28 | Marvell World Trade Ltd. | Precoding feedback for cross-polarized antennas based on signal-component magnitude difference |
| WO2013068974A1 (en) | 2011-11-10 | 2013-05-16 | Marvell World Trade Ltd. | Differential cqi encoding for cooperative multipoint feedback |
| US9220087B1 (en) | 2011-12-08 | 2015-12-22 | Marvell International Ltd. | Dynamic point selection with combined PUCCH/PUSCH feedback |
| US8902842B1 (en) | 2012-01-11 | 2014-12-02 | Marvell International Ltd | Control signaling and resource mapping for coordinated transmission |
| KR101935782B1 (ko) * | 2012-03-29 | 2019-01-08 | 삼성전자주식회사 | 다중 셀룰러 네트워크에서 신호의 송수신 방법 및 장치 |
| KR20150009980A (ko) | 2012-04-27 | 2015-01-27 | 마벨 월드 트레이드 리미티드 | 기지국들과 모바일 통신 단말기들 사이의 CoMP 통신 |
| WO2014003898A1 (en) * | 2012-05-15 | 2014-01-03 | Marvell World Trade Ltd. | Full and partial compressed feedback formats for wlan |
| CN104737465B (zh) | 2012-09-28 | 2018-05-04 | 交互数字专利控股公司 | 用于wifi波束成形、反馈以及探测(wibeam)的方法 |
| US9439161B2 (en) * | 2013-07-17 | 2016-09-06 | Qualcomm Incorporated | Physical layer design for uplink (UL) multiuser multiple-input, multiple-output (MU-MIMO) in wireless local area network (WLAN) systems |
| US10505595B2 (en) * | 2015-02-27 | 2019-12-10 | Newracom, Inc. | Mixed fine/coarse sounding methods for HE STAs for MIMO and OFDMA |
| CN115189729B (zh) * | 2015-07-10 | 2023-09-26 | 交互数字专利控股公司 | 针对ofdma wlan的统一反馈 |
| US9860765B2 (en) * | 2015-09-01 | 2018-01-02 | Qualcomm Incorporated | Doppler profile estimation using compressed beamforming information |
| WO2017043820A1 (ko) | 2015-09-09 | 2017-03-16 | 엘지전자 주식회사 | 무선랜 시스템에서 빔포밍 전송을 위한 사운딩 방법 및 이를 위한 장치 |
| US9887749B2 (en) * | 2015-12-16 | 2018-02-06 | Huawei Technologies Co., Ltd. | System and method for quantization of angles for beamforming feedback |
| US9876552B2 (en) * | 2016-02-01 | 2018-01-23 | Qualcomm Incorporated | Beamforming techniques for single-stream communications |
| EP3297376B1 (en) * | 2016-09-14 | 2020-08-05 | Nokia Technologies Oy | Allocation of resources for a renewed wireless channel estimation depending on validity of current estimation |
| US10079626B1 (en) * | 2017-05-03 | 2018-09-18 | Litepoint Corporation | Method for enabling confirmation of expected phase shifts of radio frequency signals emitted from an antenna array |
| US10771185B1 (en) * | 2019-02-19 | 2020-09-08 | Samsung Electronics Co., Ltd. | System and method for setting link parameters in a WiFi link |
| US11387880B2 (en) * | 2020-02-28 | 2022-07-12 | Qualcomm Incorporated | Channel state information feedback using channel compression and reconstruction |
| CN111901068B (zh) * | 2020-05-22 | 2024-07-30 | 中兴通讯股份有限公司 | 一种信息反馈方法、装置、通信节点和存储介质 |
| CN120548679A (zh) * | 2022-11-10 | 2025-08-26 | 迈凌有限公司 | 无线局域网上行链路的多用户mimo传输 |
Family Cites Families (38)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7564914B2 (en) | 2004-12-14 | 2009-07-21 | Broadcom Corporation | Method and system for frame formats for MIMO channel measurement exchange |
| WO2006054249A1 (en) * | 2004-11-17 | 2006-05-26 | Koninklijke Philips Electronics, N.V. | Robust wireless multimedia transmission in multiple in multiple out (mimo) system assisted by channel state information |
| JP4598003B2 (ja) * | 2004-11-30 | 2010-12-15 | パナソニック株式会社 | 送信制御フレーム生成装置、送信制御フレーム処理装置、送信制御フレーム生成方法および送信制御フレーム処理方法 |
| KR101208520B1 (ko) * | 2005-03-12 | 2012-12-05 | 엘지전자 주식회사 | 피드백 정보 통신 방법 |
| US8345732B2 (en) | 2005-06-28 | 2013-01-01 | Broadcom Corporation | Feedback of channel information in a closed loop beamforming wireless communication system |
| US9136974B2 (en) | 2005-08-30 | 2015-09-15 | Qualcomm Incorporated | Precoding and SDMA support |
| TWI274482B (en) | 2005-10-18 | 2007-02-21 | Ind Tech Res Inst | MIMO-OFDM system and pre-coding and feedback method therein |
| US8233552B2 (en) | 2005-11-07 | 2012-07-31 | Broadcom Corporation | Method and system for utilizing givens rotation expressions for asymmetric beamforming matrices in explicit feedback information |
| JP4654250B2 (ja) * | 2005-12-28 | 2011-03-16 | 富士通株式会社 | 通信装置及び通信システム |
| US8428156B2 (en) * | 2006-03-20 | 2013-04-23 | Qualcomm Incorporated | Rate control for multi-channel communication systems |
| US8914015B2 (en) * | 2006-03-20 | 2014-12-16 | Qualcomm Incorporated | Grouping of users for MIMO transmission in a wireless communication system |
| JP4924106B2 (ja) * | 2006-04-27 | 2012-04-25 | ソニー株式会社 | 無線通信システム、並びに無線通信装置及び無線通信方法 |
| KR20070113967A (ko) * | 2006-05-26 | 2007-11-29 | 엘지전자 주식회사 | 위상천이 기반의 프리코딩 방법 및 이를 지원하는 송수신기 |
| KR20080026019A (ko) * | 2006-09-19 | 2008-03-24 | 엘지전자 주식회사 | 위상천이 기반의 프리코딩 방법 및 이를 지원하는 송수신기 |
| US20080080635A1 (en) | 2006-10-02 | 2008-04-03 | Nokia Corporation | Advanced feedback signaling for multi-antenna transmission systems |
| KR20080036493A (ko) | 2006-10-23 | 2008-04-28 | 엘지전자 주식회사 | 이동통신 시스템에서의 망 접속 방법 및 이를 지원하는단말기 |
| US8059733B2 (en) * | 2006-12-20 | 2011-11-15 | Nec Laboratories America, Inc. | Multi-user downlink linear MIMO precoding systems |
| JP5126224B2 (ja) * | 2007-05-16 | 2013-01-23 | 富士通株式会社 | 無線通信装置および無線通信方法 |
| EP2158699A2 (en) | 2007-06-15 | 2010-03-03 | Electronics and Telecommunications Research Institute | Downlink reception indication method in packet based mobile communication system |
| PL2198664T3 (pl) * | 2007-08-31 | 2013-03-29 | Koninl Philips Electronics Nv | Wzmocniona transmisja wielodostępna |
| US8825100B2 (en) | 2008-08-11 | 2014-09-02 | Blackberry Limited | Method and system for providing a power boost for a wireless communication link using a subset of subcarrier frequencies of the wireless communication link channel as a reduced bandwidth channel |
| KR101606205B1 (ko) | 2008-08-21 | 2016-03-25 | 엘지전자 주식회사 | 무선통신 시스템에서 상태 보고 유발 방법 및 수신기 |
| US20110286502A1 (en) * | 2008-09-12 | 2011-11-24 | Panasonic Corporation | Wireless transmitter and precoding method |
| AU2009295275A1 (en) * | 2008-09-18 | 2010-03-25 | Commonwealth Scientific And Industrial Research Organisation | Vector quantization in wireless communication |
| US8855636B2 (en) | 2008-10-22 | 2014-10-07 | Qualcomm Incorporated | Methods and apparatus for system selection in a multimode wireless device |
| US8238277B2 (en) * | 2009-04-27 | 2012-08-07 | Mitsubishi Electric Research Laboratories, Inc. | Parametric compression of rank-1 analog feedback |
| US9197298B2 (en) | 2009-06-05 | 2015-11-24 | Broadcom Corporation | Group identification and definition within multiple user, multiple access, and/or MIMO wireless communications |
| US8600308B2 (en) | 2009-06-17 | 2013-12-03 | Futurewei Technologies, Inc. | Channel state information feedback for coordinated multiple points transmission |
| US8576804B2 (en) * | 2009-08-13 | 2013-11-05 | Broadcom Corporation | Beamforming feedback frame formats within multiple user, multiple access, and/or MIMO wireless communications |
| US8432785B2 (en) | 2009-09-02 | 2013-04-30 | Qualcomm Incorporated | Flexible SDMA and interference suppression |
| WO2011034753A2 (en) | 2009-09-18 | 2011-03-24 | Marvell World Trade Ltd. | Short packet for use in beamforming |
| US8422449B2 (en) | 2009-10-23 | 2013-04-16 | Electronics And Telecommunications Research Institute | MU-MIMO method in WLAN system, and access point and station for MU-MIMO |
| CN102696270B (zh) | 2009-11-13 | 2016-06-29 | 交互数字专利控股公司 | 在无线通信中用于支持管理动作以得到甚高吞吐量的方法和设备 |
| US9401753B2 (en) | 2009-12-23 | 2016-07-26 | Intel Corporation | Native medium access control support for beamforming |
| US8412275B2 (en) | 2009-12-30 | 2013-04-02 | Broadcom Corporation | Method and system for communicating feedback information in a multiple user multiple input multiple output (MU-MIMO) communication system |
| CN102725967B (zh) * | 2010-04-07 | 2015-08-05 | 上海贝尔股份有限公司 | 用于信息反馈以及预编码的方法和装置 |
| US8731090B2 (en) | 2010-10-04 | 2014-05-20 | Marvell World Trade Ltd. | Compressed feedback format for WLAN |
| US9130631B2 (en) | 2010-11-03 | 2015-09-08 | Qualcomm Incorporated | Beamforming feedback format |
-
2011
- 2011-10-25 US US13/280,776 patent/US8908600B2/en active Active
- 2011-10-26 WO PCT/US2011/057912 patent/WO2012058327A1/en not_active Ceased
- 2011-10-26 ES ES11781715T patent/ES2716242T3/es active Active
- 2011-10-26 EP EP11781715.5A patent/EP2636162B1/en active Active
- 2011-10-26 JP JP2013536785A patent/JP5731005B2/ja active Active
- 2011-10-26 CN CN201180051635.9A patent/CN103201963B/zh active Active
- 2011-10-26 HU HUE11781715A patent/HUE042234T2/hu unknown
-
2014
- 2014-11-10 JP JP2014228361A patent/JP5902278B2/ja active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103201963B (zh) | 2016-05-11 |
| WO2012058327A1 (en) | 2012-05-03 |
| ES2716242T3 (es) | 2019-06-11 |
| EP2636162B1 (en) | 2019-01-23 |
| JP2015065674A (ja) | 2015-04-09 |
| US20120275376A1 (en) | 2012-11-01 |
| CN103201963A (zh) | 2013-07-10 |
| EP2636162A1 (en) | 2013-09-11 |
| US8908600B2 (en) | 2014-12-09 |
| JP2013542688A (ja) | 2013-11-21 |
| HUE042234T2 (hu) | 2019-06-28 |
| JP5902278B2 (ja) | 2016-04-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5902278B2 (ja) | 超高スループットワイヤレスシステムのためのチャネル状態情報フィードバックフレームフォーマットおよびフィードバックルール | |
| US8755363B2 (en) | Physical layer signaling of control parameters | |
| CN103201964B (zh) | 波束成形反馈格式 | |
| CA3007814C (en) | Beamforming training using multiple-input and multiple-output transmission scheme | |
| US8743784B2 (en) | VHT-SIG-B field in null data packets (NDPs) | |
| EP2614602B1 (en) | Sounding feedback schemes for very high throughput wireless systems | |
| US8867574B2 (en) | Format of VHT-SIG-B and service fields in IEEE 802.11AC | |
| US9742590B2 (en) | Channel state information (CSI) feedback protocol for multiuser multiple input, multiple output (MU-MIMO) | |
| US9268633B2 (en) | Guard interval signaling for data symbol number determination | |
| KR101557838B1 (ko) | 효율적인 멀티-사용자 다중 입력 다중 출력(mumimo) | |
| US8982812B2 (en) | Group ID allocation for direct link service (DLS) | |
| US8761234B2 (en) | Rate selection for frames in wireless devices | |
| US20140269659A1 (en) | Method and apparatus for segmentation of modulation coding scheme | |
| HK1173304A (en) | Physical layer signaling of control parameters for multiple radio access technologies | |
| HK1183172B (en) | Sounding feedback methods and apparatus for very high throughput wireless systems |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20131127 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20140626 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20140708 |
|
| A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20140930 |
|
| A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20141007 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20141110 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20141216 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20150310 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20150408 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 5731005 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |