JP5503561B2 - マルチユーザシステムにおける送信設定の通知 - Google Patents
マルチユーザシステムにおける送信設定の通知 Download PDFInfo
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- JP5503561B2 JP5503561B2 JP2010549226A JP2010549226A JP5503561B2 JP 5503561 B2 JP5503561 B2 JP 5503561B2 JP 2010549226 A JP2010549226 A JP 2010549226A JP 2010549226 A JP2010549226 A JP 2010549226A JP 5503561 B2 JP5503561 B2 JP 5503561B2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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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
- H04B7/0413—MIMO systems
- H04B7/0452—Multi-user MIMO systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/18—Negotiating wireless communication parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- 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
- H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/12—WLAN [Wireless Local Area Networks]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Mobile Radio Communication Systems (AREA)
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Description
・捕捉及び同期トレーニングシーケンスのためのトレーニングフィールド110 (A&S-TS)。例えば802.11/a/gにおけるようなSTF(Short Training Field)が用いられることができる。
・シングルユーザSISO/SIMOチャネル推定トレーニングシーケンスのためのSUトレーニングフィールド120(SU-CE-TS)。例えば802.11(n)におけるような(HT) LTF(Long Training Field)が用いられることができる。
・共通の設定を含む共通信号(COMSIG)フィールド130。このフィールドのための送信設定は、受信機に知られており、通常は最もロバストな送信である。
・マルチユーザMIMOチャネル推定トレーニングシーケンスのためのMUトレーニングフィールド140(MU-CE-TS)。トレーニングフィールド140は、802.11n HT-LTFと同様であることができる。このフィールドにおいて送信されるHT-LTFの数は、時空ストリームの数-1に等しくてもよい(第1のHT-LTFがプリアンブルのシングルユーザ部分中で送信されていることが留意されるべきである)。ビーム成形が用いられる場合、MUトレーニングフィールド140も、ビーム成形されて送信されることができる。
・ユーザストリーム固有の設定を含み、ユーザ(受信機)ごとに異なる場合があるユーザストリーム固有信号フィールド(USERSIG)150。他のフィールドとは異なり、これらのUSERSIGフィールド150は、マルチユーザMIMO方式で同時に送信されることができる。チャネルを推定した受信機がそれらのUSERSIGを適切に復号することができるように、マルチユーザMIMO方式におけるこれらのUSERSIGフィールド150の送信は、マルチユーザMIMOチャネル推定のためのMUトレーニングフィールド140の後にのみ、発生することができる。
Claims (14)
- 複数のユーザストリームを用いて複数の受信機へのマルチユーザ送信を実行するための送信機器であって、当該送信機器は、
前記マルチユーザ送信の送信設定を、前記受信機のうちの複数の受信機に関連する共通の情報を含む共通信号情報と、関連したユーザストリームのみに関連するユーザストリームに固有の情報を含むユーザストリーム固有情報とに分割し、
前記マルチユーザ送信のプリアンブル部分の別個の専用のフィールドにおいて、前記共通信号情報及び前記ユーザストリーム固有情報を伝達し、
前記共通の情報中に、前記複数のユーザストリームのうち最長のユーザストリームフィールドの継続時間を示す継続時間情報を提供する、
送信機器。 - 前記共通の情報中に、前記受信機へのユーザストリームのマッピングを示すリソース割当て情報のうちの少なくとも1つを提供する、請求項1に記載の機器。
- マルチユーザ方式で前記ユーザストリーム固有情報を送信する、請求項1又は請求項2に記載の機器。
- 送信されるべきユーザストリームを、当該ストリームを複数の送信ストリームに逆多重化することによって、ユーザ又は受信機にマップする、請求項1に記載の機器。
- 前記ユーザストリームが空間ユーザストリームである、請求項1に記載の機器。
- 複数のユーザストリームを用いてマルチユーザ送信信号を受信するための受信機器であって、
前記マルチユーザ送信のプリアンブル部分の別個の専用のフィールドにおいて、共通信号情報及びユーザストリーム固有情報を検出し、
前記共通信号情報から、複数の受信機に関連する送信設定を導出し、前記ユーザストリーム固有情報から、当該機器に関連するユーザストリームのみに関連する専用のユーザストリーム固有情報を導出し、前記共通情報から、前記複数のユーザストリームのうち最長のユーザストリームフィールドの継続時間を示す継続時間情報を導出する、受信機器。 - 前記共通情報から、ユーザ又は受信機へのユーザストリームのマッピングを示すリソース割当て情報のうちの少なくとも1つを導出する、請求項6に記載の機器。
- 前記ユーザストリームが空間ユーザストリームである、請求項6又は請求項7に記載の機器。
- マルチユーザ方式で前記ユーザストリーム固有情報を受信する、請求項6又は請求項7に記載の機器。
- 前記プリアンブル部分の割当てフィールドを確認し、異なるユーザ又は受信機に割り当てられているとして割当て情報によって示されるユーザ固有ストリームを独立に復号して、当該機器を対象としないユーザ固有ストリームを破棄する、請求項6に記載の機器。
- 複数のユーザストリームを用いて送信機と複数の受信機との間でマルチユーザ送信を実行するための方法であって、
前記マルチユーザ送信の送信設定を、前記受信機のうちの複数の受信機に関連する共通の情報を含む共通信号情報と、関連したユーザストリームのみに関連するユーザストリームに固有の情報を含むユーザストリーム固有情報とに分割し、
前記マルチユーザ送信のプリアンブル部分の別個の専用のフィールドにおいて、前記共通信号情報及び前記ユーザストリーム固有情報を伝達し、
前記共通情報が、前記複数のユーザストリームのうち最長のユーザストリームフィールドの継続時間を示す継続時間情報を含む、方法。 - 請求項1に記載の少なくとも1つの送信機器及び請求項6に記載の少なくとも1つの受信機器を有する、マルチユーザ送信のためのシステム。
- 前記少なくとも1つの送信機器及び前記少なくとも1つの受信機器が、ランダムアクセスメカニズムを有する無線ネットワークの少なくとも一部である、請求項12に記載のシステム。
- コンピュータで実行されたときに請求項11に記載の方法を実行するコードを有するコンピュータプログラム。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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EP08152226.0 | 2008-03-04 | ||
EP08152226 | 2008-03-04 | ||
PCT/IB2009/050826 WO2009109894A1 (en) | 2008-03-04 | 2009-03-02 | Signaling of transmission settings in multi-user systems |
Publications (3)
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JP2011515051A JP2011515051A (ja) | 2011-05-12 |
JP2011515051A5 JP2011515051A5 (ja) | 2012-04-19 |
JP5503561B2 true JP5503561B2 (ja) | 2014-05-28 |
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US (1) | US9497744B2 (ja) |
EP (1) | EP2263407B1 (ja) |
JP (1) | JP5503561B2 (ja) |
KR (2) | KR101594545B1 (ja) |
CN (1) | CN101960899B (ja) |
ES (1) | ES2580168T3 (ja) |
TW (1) | TWI471043B (ja) |
WO (1) | WO2009109894A1 (ja) |
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CN101960899B (zh) | 2016-05-11 |
EP2263407A1 (en) | 2010-12-22 |
WO2009109894A1 (en) | 2009-09-11 |
KR101630868B1 (ko) | 2016-06-27 |
TWI471043B (zh) | 2015-01-21 |
ES2580168T3 (es) | 2016-08-19 |
EP2263407B1 (en) | 2016-05-11 |
KR20100127248A (ko) | 2010-12-03 |
KR101594545B1 (ko) | 2016-02-26 |
TW201006284A (en) | 2010-02-01 |
KR20160009101A (ko) | 2016-01-25 |
US9497744B2 (en) | 2016-11-15 |
CN101960899A (zh) | 2011-01-26 |
JP2011515051A (ja) | 2011-05-12 |
US20110002319A1 (en) | 2011-01-06 |
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