EP3874614A4 - Frequency domain channel state information compression - Google Patents
Frequency domain channel state information compression Download PDFInfo
- Publication number
- EP3874614A4 EP3874614A4 EP19877558.7A EP19877558A EP3874614A4 EP 3874614 A4 EP3874614 A4 EP 3874614A4 EP 19877558 A EP19877558 A EP 19877558A EP 3874614 A4 EP3874614 A4 EP 3874614A4
- Authority
- EP
- European Patent Office
- Prior art keywords
- state information
- frequency domain
- channel state
- domain channel
- information compression
- 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.)
- Withdrawn
Links
- 230000006835 compression Effects 0.000 title 1
- 238000007906 compression Methods 0.000 title 1
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
- H04B7/0636—Feedback format
- H04B7/0639—Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
-
- 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
- H04B7/06—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
- H04B7/0658—Feedback reduction
- H04B7/0663—Feedback reduction using vector or matrix manipulations
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Mobile Radio Communication Systems (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201862754497P | 2018-11-01 | 2018-11-01 | |
US201962794220P | 2019-01-18 | 2019-01-18 | |
PCT/US2019/058523 WO2020092340A1 (en) | 2018-11-01 | 2019-10-29 | Frequency domain channel state information compression |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3874614A1 EP3874614A1 (en) | 2021-09-08 |
EP3874614A4 true EP3874614A4 (en) | 2022-08-31 |
Family
ID=70464479
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19877558.7A Withdrawn EP3874614A4 (en) | 2018-11-01 | 2019-10-29 | Frequency domain channel state information compression |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3874614A4 (en) |
CN (1) | CN112913155A (en) |
WO (1) | WO2020092340A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022073663A1 (en) * | 2020-10-06 | 2022-04-14 | Nokia Technologies Oy | Method, apparatus, and computer program |
CN115118316B (en) * | 2021-03-19 | 2024-04-26 | 北京紫光展锐通信技术有限公司 | Feedback and determination methods and devices of type II port selection codebook and computer readable storage medium |
US11909472B2 (en) | 2021-11-16 | 2024-02-20 | Samsung Electronics Co., Ltd | Method and apparatus for selection of linear combination coefficients for precoding in frequency-selective channels |
CN116939649A (en) * | 2022-04-01 | 2023-10-24 | 维沃移动通信有限公司 | Channel characteristic information transmission method and device, terminal and network side equipment |
WO2024138429A1 (en) * | 2022-12-28 | 2024-07-04 | Zte Corporation | Precoding matrix determination for near-field and far-field transmissions |
WO2024182928A1 (en) * | 2023-03-03 | 2024-09-12 | Zte Corporation | Channel state information reporting |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9401749B2 (en) * | 2013-03-08 | 2016-07-26 | Google Technology Holdings LLC | Method for codebook enhancement for multi-user multiple-input multiple-output systems |
JP6445471B2 (en) * | 2013-03-11 | 2018-12-26 | エルジー エレクトロニクス インコーポレイティド | Method and apparatus for reporting channel state information in a wireless communication system |
KR102398220B1 (en) * | 2014-10-31 | 2022-05-16 | 삼성전자주식회사 | Codebook design and structure for advanced wireless communication systems |
WO2016183737A1 (en) * | 2015-05-15 | 2016-11-24 | Qualcomm Incorporated | Enhanced csi procedures for fd-mimo |
US10298300B2 (en) * | 2016-07-27 | 2019-05-21 | Samsung Electronics Co., Ltd. | Linear combination codebook for CSI reporting in advanced wireless communication systems |
US11088732B2 (en) * | 2016-09-26 | 2021-08-10 | Lg Electronics Inc. | Method for transmitting/receiving channel state information in wireless communication system and apparatus for same |
-
2019
- 2019-10-29 EP EP19877558.7A patent/EP3874614A4/en not_active Withdrawn
- 2019-10-29 WO PCT/US2019/058523 patent/WO2020092340A1/en unknown
- 2019-10-29 CN CN201980036384.3A patent/CN112913155A/en active Pending
Non-Patent Citations (3)
Title |
---|
ERICSSON: "On CSI enhancements for MU-MIMO support", vol. RAN WG1, no. Chengdu, China; 20181008 - 20181012, 29 September 2018 (2018-09-29), XP051518594, Retrieved from the Internet <URL:http://www.3gpp.org/ftp/tsg%5Fran/WG1%5FRL1/TSGR1%5F94b/Docs/R1%2D1811193%2Ezip> [retrieved on 20180929] * |
HUAWEI ET AL: "Discussion on CSI enhancement for MU-MIMO", vol. RAN WG1, no. Chengdu, China; 20181008 - 20181012, 29 September 2018 (2018-09-29), XP051517518, Retrieved from the Internet <URL:http://www.3gpp.org/ftp/tsg%5Fran/WG1%5FRL1/TSGR1%5F94b/Docs/R1%2D1810103%2Ezip> [retrieved on 20180929] * |
See also references of WO2020092340A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP3874614A1 (en) | 2021-09-08 |
WO2020092340A1 (en) | 2020-05-07 |
CN112913155A (en) | 2021-06-04 |
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Legal Events
Date | Code | Title | Description |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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STAA | Information on the status of an ep patent application or granted ep patent |
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17P | Request for examination filed |
Effective date: 20201116 |
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AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
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DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
A4 | Supplementary search report drawn up and despatched |
Effective date: 20220728 |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: H04B 7/0456 20170101ALI20220722BHEP Ipc: H04L 1/00 20060101ALI20220722BHEP Ipc: H04B 7/06 20060101AFI20220722BHEP |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
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18W | Application withdrawn |
Effective date: 20240306 |