JP6134830B2 - 無線通信システムにおける制御チャネルを割り当てる方法及び装置 - Google Patents
無線通信システムにおける制御チャネルを割り当てる方法及び装置 Download PDFInfo
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- H04J—MULTIPLEX COMMUNICATION
- H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
- H04J11/0023—Interference mitigation or co-ordination
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- H—ELECTRICITY
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
- H04B7/2612—Arrangements for wireless medium access control, e.g. by allocating physical layer transmission capacity
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- H—ELECTRICITY
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0045—Arrangements at the receiver end
- H04L1/0046—Code rate detection or code type detection
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0072—Error control for data other than payload data, e.g. control data
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- H—ELECTRICITY
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- H04L5/0094—Indication of how sub-channels of the path are allocated
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- H04W88/08—Access point devices
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Description
4)e−PDCCHが1つのレイヤに伝送される第1の領域及びe−PDCCHがSFBC(space−frequency block coding)/STBC(space−time block coding)に伝送される第2の領域
5)ビームフォーミングまたは適応的(adaptive)ビームフォーミングが適用される第1の領域及びSFBC/STBCまたは非適応的(non−adaptive)ビームフォーミングなどの伝送ダイバシティ(TxD;transmit diversity)が適用される第2の領域
6)1つのRBまたはRB対内にCCE/e−CCEが構成またはマッピングされる第1の領域及びCCE/e−CCEが複数のRBから分割されて構成またはマッピングされる第2の領域
7)e−PDCCHの探索領域が連続するRBまたはRB対で構成またはマッピングされる第1の領域及びe−PDCCHの探索領域が分散されるRBまたはRB対で構成またはマッピングされる第2の領域
以上の基準によって1つの端末のe−PDCCHは第1の領域及び/又は第2の領域に割り当てられることができる。
(項目1)
無線通信システムにおける制御チャネルを割り当てる方法であって、
PDSCH(physical downlink shared channel)領域内の局所領域(localized region)にe−PDCCH(enhanced physical downlink control channel)を割り当て、
前記PDSCH領域内の分散領域(distributed region)に前記e−PDCCHを割り当て、
前記割り当てられたe−PDCCHを介してスケジューリング割当(scheduling assignment)を伝送することを含むことを特徴とする方法。
(項目2)
前記局所領域は、1つの端末のe−PDCCHが局所的に割り当てられる領域であり、
前記分散領域は、1つの端末のe−PDCCHが分散的に割り当てられる領域であることを特徴とする項目1に記載の方法。
(項目3)
前記局所領域は、最小集合レベル(aggregation level)のe−PDCCHが1つの物理資源ブロック(PRB;physical resource block)またはPRB対から伝送される領域であり、
前記分散領域は、最小集合レベルのe−PDCCHが複数のPRBまたはPRB対から分散されて伝送される領域であることを特徴とする項目1に記載の方法。
(項目4)
前記局所領域は、e−PDCCH集合領域に与えられたN個のe−PDCCHアンテナポートのうち、一部のe−PDCCHアンテナポートを使用する領域であり、
前記分散領域は、前記与えられたN個のe−PDCCHアンテナポートを全て使用する領域であることを特徴とする項目1に記載の方法。
(項目5)
前記局所領域は、CCE(control channel element)/e−CCE(enhanced CCE)が1つのRBまたはRB対内に構成またはマッピングされる領域であり、
前記分散領域は、CCE/e−CCEが複数のRBから分割されて構成またはマッピングされる領域であることを特徴とする項目1に記載の方法。
(項目6)
前記局所領域は、前記e−PDCCHの探索領域(search space)が連続するRBまたはRB対から構成またはマッピングされる領域であり、
前記分散領域は、前記e−PDCCHの探索領域が分散されるRBまたはRB対から構成またはマッピングされる領域であることを特徴とする項目1に記載の方法。
(項目7)
前記局所領域は、複数の端末のe−PDCCH等がインターリービングされずに割り当てられる領域であり、
前記分散領域は、複数の端末のe−PDCCH等がインターリービングされて割り当てられる領域であることを特徴とする項目1に記載の方法。
(項目8)
前記各端末のe−PDCCHは、前記分散領域内で複数のユニット(unit)で構成されることを特徴とする項目7に記載の方法。
(項目9)
前記各ユニットは、1つのPRB内で周波数領域に沿って構成されるか、時間領域及び周波数領域に沿って構成されることを特徴とする項目8に記載の方法。
(項目10)
前記局所領域に割り当てられるe−PDCCHの集合レベル(aggregation)より前記分散領域に割り当てられるe−PDCCHの集合レベルが高いことを特徴とする項目1に記載の方法。
(項目11)
前記スケジューリング割当は、前記分散領域に割り当てられたe−PDCCHの共通探索領域(CSS;common search space)を介して伝送されることを特徴とする項目1に記載の方法。
(項目12)
前記スケジューリング割当は、共通RNTI(radio networktemporary identity)を備えることを特徴とする項目11に記載の方法。
(項目13)
前記分散領域に割り当てられたe−PDCCHを介して伝送される前記スケジューリング割当は、DCI(downlink control information)フォーマット1Aであることを特徴とする項目11に記載の方法。
(項目14)
無線通信システムにおける制御チャネルを割り当てる基地局であって、
無線信号を伝送または受信するRF(radio frequency)部と、
前記RF部と接続されるプロセッサと、
を備え、
前記プロセッサは、
PDSCH(physical downlink shared channel)領域内の局所領域(localized region)にe−PDCCH(enhanced physical downlink control channel)を割り当て、
前記PDSCH領域内の分散領域(distributed region)に前記e−PDCCHを割り当て、
前記割り当てられたe−PDCCHを介してスケジューリング割当(scheduling assignment)を伝送するように構成されることを特徴とする基地局。
(項目15)
前記局所領域は、1つの端末のe−PDCCHが局所的に割り当てられる領域であり、
前記分散領域は、1つの端末のe−PDCCHが分散的に割り当てられる領域であることを特徴とする項目14に記載の基地局。
Claims (10)
- 基地局(BS)により無線通信システムにおける制御チャネルを割り当てる方法であって、
前記方法は、
局所領域または分散領域のうちの1つにe−PDCCH(enhanced physical downlink control channel)を割り当てることと、
前記割り当てられたe−PDCCHを介してスケジューリング割当を伝送することと
を含み、
前記局所領域は、前記e−PDCCHが1つのPRB(physical resource block)または1つのPRB対にのみ割り当てられる領域であり、
前記分散領域は、前記e−PDCCHが複数のPRBまたは複数のPRB対に割り当てられる領域であり、
前記e−PDCCHは、最高の集合レベルを有するe−PDCCHフォーマットにおいて前記分散領域にのみ割り当てられる、方法。 - 前記e−PDCCHは、少なくとも1つのe−CCE(enhanced control channel element)の集合を利用して割り当てられ、
各e−CCEは、複数のe−REG(enhanced resource element group)を含む、請求項1に記載の方法。 - 前記分散領域に割り当てられた前記e−PDCCHの集合レベルは、前記局所領域に割り当てられた前記e−PDCCHの集合レベルよりも高い、請求項1に記載の方法。
- 前記スケジューリング割当は、前記分散領域に割り当てられた前記e−PDCCHのCSS(common search space)を介して伝送される、請求項1に記載の方法。
- 前記スケジューリング割当は、共通RNTI(radio network temporary identity)を備える、請求項4に記載の方法。
- 前記分散領域に割り当てられた前記e−PDCCHを介して伝送される前記スケジューリング割当は、DCI(downlink control information)フォーマット1Aである、請求項4に記載の方法。
- 無線通信システム内の基地局(BS)であって、
前記BSは、
メモリと、
RF(radio frequency)部と、
前記メモリおよび前記RF部に結合されるプロセッサと
を備え、
前記プロセッサは、
局所領域または分散領域のうちの1つにe−PDCCH(enhanced physical downlink control channel)を割り当てることと、
前記割り当てられたe−PDCCHを介してスケジューリング割当を伝送するように前記RF部を制御することと
を実行するように構成されており、
前記局所領域は、前記e−PDCCHが1つのPRB(physical resource block)または1つのPRB対にのみ割り当てられる領域であり、
前記分散領域は、前記e−PDCCHが複数のPRBまたは複数のPRB対に割り当てられる領域であり、
前記e−PDCCHは、最高の集合レベルを有するe−PDCCHフォーマットにおいて前記分散領域にのみ割り当てられる、BS。 - ユーザ機器(UE)により無線通信システムにおけるスケジューリング割当を受信する方法であって、
前記方法は、
局所領域または分散領域のうちの1つへのe−PDCCH(enhanced physical downlink control channel)を受信することと、
前記割り当てられたe−PDCCHを介してスケジューリング割当を受信することと
を含み、
前記局所領域は、前記e−PDCCHが1つのPRB(physical resource block)または1つのPRB対にのみ割り当てられる領域であり、
前記分散領域は、前記e−PDCCHが複数のPRBまたは複数のPRB対に割り当てられる領域であり、
前記e−PDCCHは、最高の集合レベルを有するe−PDCCHフォーマットにおいて前記分散領域にのみ割り当てられる、方法。 - 前記e−PDCCHは、少なくとも1つのe−CCE(enhanced control channel element)の集合を利用して割り当てられ、
各e−CCEは、複数のe−REG(enhanced resource element group)を含む、請求項8に記載の方法。 - 前記分散領域に割り当てられた前記e−PDCCHの集合レベルは、前記局所領域に割り当てられた前記e−PDCCHの集合レベルよりも高い、請求項8に記載の方法。
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US201161551902P | 2011-10-26 | 2011-10-26 | |
US61/551,902 | 2011-10-26 | ||
US201161563608P | 2011-11-25 | 2011-11-25 | |
US61/563,608 | 2011-11-25 | ||
US201161577074P | 2011-12-18 | 2011-12-18 | |
US61/577,074 | 2011-12-18 |
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Cited By (2)
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US10485894B2 (en) | 2012-05-14 | 2019-11-26 | Teijin Limited | Formed sheet product and hemostatic material |
US11433160B2 (en) | 2012-05-14 | 2022-09-06 | Teijin Limited | Formed sheet product and hemostatic material |
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JP5905590B2 (ja) | 2016-04-20 |
KR20140081847A (ko) | 2014-07-01 |
KR101675725B1 (ko) | 2016-11-11 |
US9544107B2 (en) | 2017-01-10 |
EP2773054A4 (en) | 2015-07-15 |
EP2773054A1 (en) | 2014-09-03 |
KR20160033248A (ko) | 2016-03-25 |
CN103999388A (zh) | 2014-08-20 |
JP2016131389A (ja) | 2016-07-21 |
US9853789B2 (en) | 2017-12-26 |
US20170093535A1 (en) | 2017-03-30 |
EP2773054B1 (en) | 2019-04-10 |
CN103999388B (zh) | 2017-10-03 |
WO2013062347A1 (ko) | 2013-05-02 |
US20140293957A1 (en) | 2014-10-02 |
KR101605279B1 (ko) | 2016-03-21 |
JP2014533005A (ja) | 2014-12-08 |
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