JP2016136768A - 無線通信システムにおいてリソース特定送信モードを決定する方法、及びそのための装置 - Google Patents
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- 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
- H04L5/0091—Signaling for the administration of the divided path
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
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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
- H04B7/022—Site diversity; Macro-diversity
- H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [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
- H04B7/0615—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]
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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
- H04B7/06—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
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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
- H04B7/10—Polarisation diversity; Directional diversity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
- H04J11/0023—Interference mitigation or co-ordination
- H04J11/005—Interference mitigation or co-ordination of intercell interference
- H04J11/0053—Interference mitigation or co-ordination of intercell interference using co-ordinated multipoint transmission/reception
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- H—ELECTRICITY
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- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
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Abstract
Description
Claims (6)
- 無線通信システムにおいて端末が基地局にプリコーディング行列インデクスを送信する方法であって、
上位層による二つ以上のサブフレーム集合を構成するステップと、
前記基地局から、前記二つ以上のサブフレーム集合に対する符号表サブセット制限フィールドを受信するステップと、
前記二つ以上のサブフレーム集合のうちの一つのサブフレーム集合に対する一つの符号表サブセット制限フィールドによって規定される符号表サブセットから、特定サブフレーム内の前記プリコーディング行列インデクスを選択するステップと、
前記プリコーディング行列インデクスを前記基地局に送信するステップと、
を有し、
前記特定サブフレームは、前記二つ以上のサブフレーム集合のうちの一つのサブフレーム集合に属する、方法。 - 前記二つ以上のサブフレーム集合のそれぞれは、隣接基地局によって発生し得る干渉レベルが異なる、請求項1に記載の方法。
- 前記符号表サブセット制限フィールドのそれぞれは、対応する符号表サブセットに含まれる少なくとも一つのプリコーディング行列インデクスを示し、
前記少なくとも一つのプリコーディング行列インデクスは、所定の符号表から選択される、請求項1に記載の方法。 - 無線通信システムにおいて基地局が端末からプリコーディング行列インデクスを受信する方法であって、
上位層による二つ以上のサブフレーム集合を構成するステップと、
前記端末に、前記二つ以上のサブフレーム集合に対する符号表サブセット制限フィールドを送信するステップと、
前記端末から前記プリコーディング行列インデクスを受信するステップと、
を有し、
前記プリコーディング行列インデクスは、前記二つ以上のサブフレーム集合のうちの一つのサブフレーム集合に対する一つの符号表サブセット制限フィールドによって規定される符号表サブセットから、特定サブフレーム内で前記端末により選択され、
前記特定サブフレームは、前記二つ以上のサブフレーム集合のうちの一つのサブフレーム集合に属する、方法。 - 前記二つ以上のサブフレーム集合のそれぞれは、隣接基地局によって発生し得る干渉レベルが異なる、請求項4に記載の方法。
- 前記符号表サブセット制限フィールドのそれぞれは、対応する符号表サブセットに含まれる少なくとも一つのプリコーディング行列インデクスを示し、
前記少なくとも一つのプリコーディング行列インデクスは、所定の符号表から選択される、請求項4に記載の方法。
Applications Claiming Priority (4)
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US201161469079P | 2011-03-29 | 2011-03-29 | |
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US201161479413P | 2011-04-27 | 2011-04-27 | |
US61/479,413 | 2011-04-27 |
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JP2015084146A Division JP5909298B2 (ja) | 2011-03-29 | 2015-04-16 | 無線通信システムにおいてリソース特定送信モードを決定する方法、及びそのための装置 |
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JP2016136768A true JP2016136768A (ja) | 2016-07-28 |
JP6181796B2 JP6181796B2 (ja) | 2017-08-16 |
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JP2013558798A Active JP5735666B2 (ja) | 2011-03-29 | 2012-03-27 | 無線通信システムにおいてリソース特定送信モードを決定する方法、及びそのための装置 |
JP2015084146A Active JP5909298B2 (ja) | 2011-03-29 | 2015-04-16 | 無線通信システムにおいてリソース特定送信モードを決定する方法、及びそのための装置 |
JP2016057998A Expired - Fee Related JP6181796B2 (ja) | 2011-03-29 | 2016-03-23 | 無線通信システムにおいてリソース特定送信モードを決定する方法、及びそのための装置 |
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JP2015084146A Active JP5909298B2 (ja) | 2011-03-29 | 2015-04-16 | 無線通信システムにおいてリソース特定送信モードを決定する方法、及びそのための装置 |
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US (1) | US10499372B2 (ja) |
EP (1) | EP2675082B1 (ja) |
JP (3) | JP5735666B2 (ja) |
KR (1) | KR101835331B1 (ja) |
CN (2) | CN103444099B (ja) |
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WO (1) | WO2012134140A2 (ja) |
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CN105610483A (zh) | 2016-05-25 |
KR101835331B1 (ko) | 2018-03-07 |
EP2675082A4 (en) | 2014-09-03 |
JP5735666B2 (ja) | 2015-06-17 |
JP6181796B2 (ja) | 2017-08-16 |
JP2014512745A (ja) | 2014-05-22 |
CN105610483B (zh) | 2019-03-12 |
CA2827075A1 (en) | 2012-10-04 |
WO2012134140A2 (ko) | 2012-10-04 |
CN103444099A (zh) | 2013-12-11 |
EP2675082A2 (en) | 2013-12-18 |
JP2015165691A (ja) | 2015-09-17 |
KR20130143105A (ko) | 2013-12-30 |
EP2675082B1 (en) | 2017-05-10 |
US10499372B2 (en) | 2019-12-03 |
WO2012134140A3 (ko) | 2013-01-03 |
US20130315192A1 (en) | 2013-11-28 |
CN103444099B (zh) | 2016-02-03 |
CA2827075C (en) | 2016-05-10 |
JP5909298B2 (ja) | 2016-04-26 |
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