JP6424246B2 - Wlanシステムにおけるマルチユーザ並列チャネルアクセス - Google Patents
Wlanシステムにおけるマルチユーザ並列チャネルアクセス Download PDFInfo
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/121—Wireless traffic scheduling for groups of terminals or users
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0025—Transmission of mode-switching indication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
- H04L1/1664—Details of the supervisory signal the supervisory signal being transmitted together with payload signals; piggybacking
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
- H04L1/1685—Details of the supervisory signal the supervisory signal being transmitted in response to a specific request, e.g. to a polling signal
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- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1829—Arrangements specially adapted for the receiver end
- H04L1/1861—Physical mapping arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W72/04—Wireless resource allocation
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- H—ELECTRICITY
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- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
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- H—ELECTRICITY
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- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/002—Transmission of channel access control information
- H04W74/004—Transmission of channel access control information in the uplink, i.e. towards network
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- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W74/002—Transmission of channel access control information
- H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal
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- H—ELECTRICITY
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- H04W74/04—Scheduled access
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
- H04W74/0816—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA] with collision avoidance
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/318—Received signal strength
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- 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
- H04L1/0056—Systems characterized by the type of code used
- H04L1/007—Unequal error protection
-
- H—ELECTRICITY
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- 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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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Mobile Radio Communication Systems (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
- Communication Control (AREA)
Description
本出願は、2012年3月1日に出願された米国特許仮出願第61/605538号明細書、2012年7月9日に出願された米国特許仮出願第61/669505号明細書、および2012年8月16日に出願された米国特許仮出願第61/684051号明細書の利益を主張し、それらの内容は、本明細書における参照によって本明細書に組み込まれる。
i=NROW(k mod NCOL)+floor(k/NCOL) k=0,1,...,NBITS−1 式2
と定義され得る。
TXVECTOR=[TXVECTOR_Common,TXVECTOR_0,TXVECTOR_1,...,TXVECTOR_N] 式5
RXVECTOR=[RXVECTOR_Common,RXVECTOR_0,RXVECTOR_1,...,RXVECTOR_N] 式6
ここで、TXVECTOR_CommonおよびRXVECTOR_Commonは、SU−PCAもしくはMU−PCAで使用されるすべてのチャネル、またはすべての周波数セグメントに適用される、パラメータを含むことができ、TXVECTOR_iおよびRX_VECTOR_i、0<i<Nは、第iのチャネルまたは周波数セグメントに固有のパラメータを含むことができる。第iのチャネルは、任意の帯域幅とすることができ、連続および非連続の周波数セグメントから成ることができる。
Claims (16)
- 複数の無線送受信ユニット(WTRU)のマルチユーザ並列チャネルアクセス(MU−PCA)グループに属するWTRUであって、前記複数のWTRUの前記MU−PCAグループは、アクセスポイント(AP)によって管理された複数のチャネルを介して同時に通信するように構成され、前記WTRUは、
前記アクセスポイント(AP)から、前記WTRUに関連付けられた前記複数のチャネルの少なくとも1つを介して、前記WTRUに対するリソース割り当てを含むグループ送信要求(G−RTS)メッセージを受信するように構成された受信機と、
前記APに、前記複数のチャネルの少なくとも1つの割り当てられたチャネルを介して、送信可(CTS)メッセージを送信するように構成された送信機であって、前記リソース割り当ては、前記少なくとも1つの割り当てられたチャネルを示す、送信機と
を備え、
前記受信機は、前記APから、前記少なくとも1つの割り当てられたチャネルを介してデータメッセージを受信するように構成され、前記データメッセージは、前記複数のチャネルを介して前記APによって送信された複数のデータメッセージのグループの1つであることを特徴とするWTRU。 - 前記少なくとも1つの割り当てられたチャネルは、前記複数のチャネルの2つ以上を含むことを特徴とする請求項1に記載のWTRU。
- 前記少なくとも1つの割り当てられたチャネルは、前記複数のチャネルの全てを含むことを特徴とする請求項1に記載のWTRU。
- 前記G−RTSメッセージは、前記MU−PCAグループの前記複数のWTRUに対するリソース割り当てを含むことを特徴とする請求項1に記載のWTRU。
- 前記CTSメッセージは、前記WTRUが前記少なくとも1つの割り当てられたチャネル上で受信する準備ができていることを示すことを特徴とする請求項1に記載のWTRU。
- 前記送信機は、前記少なくとも1つの割り当てられたチャネルを介して前記APにメッセージを送信するようにさらに構成され、前記メッセージは、前記WTRUが前記APに送信するためのアップリンク(UL)データを有するかどうかを前記APに通知するためのインジケーションを含むことを特徴とする請求項1に記載のWTRU。
- 前記インジケーションは、前記WTRUが前記APに送信するためのULデータを有することを示すという条件で、
前記受信機は、前記APから、前記少なくとも1つの割り当てられたチャネルを介して他のCTSメッセージを受信するようにさらに構成されたことを特徴とする請求項6に記載のWTRU。 - 前記送信機は、前記受信機が前記他のCTSメッセージを受信することに応答して、前記APに、前記少なくとも1つの割り当てられたチャネルを介して前記ULデータを送信するようにさらに構成されたことを特徴とする請求項7に記載のWTRU。
- 前記メッセージは、肯定応答(ACK)パケット、ブロックACKパケット、またはグループACKパケットの1つであることを特徴とする請求項6に記載のWTRU。
- 複数の無線送受信ユニット(WTRU)のマルチユーザ並列チャネルアクセス(MU−PCA)グループに属するWTRUにおける使用のための方法であって、前記複数のWTRUの前記MU−PCAグループは、アクセスポイント(AP)によって管理された複数のチャネルを介して同時に通信するように構成され、前記方法は、
前記アクセスポイント(AP)から、前記WTRUに関連付けられた前記複数のチャネルの少なくとも1つを介して、前記WTRUに対するリソース割り当てを含むグループ送信要求(G−RTS)メッセージを受信するステップと、
前記APに、前記複数のチャネルの少なくとも1つの割り当てられたチャネルを介して、送信可(CTS)メッセージを送信するステップであって、前記リソース割り当ては、前記少なくとも1つの割り当てられたチャネルを示す、ステップと、
前記APから、前記少なくとも1つの割り当てられたチャネルを介してデータメッセージを受信するステップであって、前記データメッセージは、前記複数のチャネルを介して前記APによって送信された複数のデータメッセージのグループの1つである、ステップと
を備えたことを特徴とする方法。 - 前記少なくとも1つの割り当てられたチャネルは、前記複数のチャネルの2つ以上を含むことを特徴とする請求項10に記載の方法。
- 前記少なくとも1つの割り当てられたチャネルは、前記複数のチャネルの全てを含むことを特徴とする請求項10に記載の方法。
- 前記少なくとも1つの割り当てられたチャネルを介して前記APにメッセージを送信するステップをさらに備え、前記メッセージは、前記WTRUが前記APに送信するためのアップリンク(UL)データを有するかどうかを前記APに通知するためのインジケーションを含むことを特徴とする請求項10に記載の方法。
- 前記インジケーションは、前記WTRUが前記APに送信するためのULデータを有することを示すという条件で、
前記APから、前記少なくとも1つの割り当てられたチャネルを介して他のCTSメッセージを受信するステップをさらに備えたことを特徴とする請求項13に記載の方法。 - 前記他のCTSメッセージを受信することに応答して、前記APに、前記少なくとも1つの割り当てられたチャネルを介して前記ULデータを送信するステップをさらに備えたことを特徴とする請求項14に記載の方法。
- 前記メッセージは、肯定応答(ACK)パケット、ブロックACKパケット、またはグループACKパケットの1つであることを特徴とする請求項13に記載の方法。
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US201261605538P | 2012-03-01 | 2012-03-01 | |
US61/605,538 | 2012-03-01 | ||
US201261669505P | 2012-07-09 | 2012-07-09 | |
US61/669,505 | 2012-07-09 | ||
US201261684051P | 2012-08-16 | 2012-08-16 | |
US61/684,051 | 2012-08-16 |
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EP (3) | EP4447609A2 (ja) |
JP (2) | JP6122039B2 (ja) |
TW (2) | TW201733327A (ja) |
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US7809841B1 (en) * | 2007-03-29 | 2010-10-05 | Trading Technologies International, Inc. | System and method for communicating with an electronic exchange in an electronic trading environment |
WO2010143894A2 (en) * | 2009-06-10 | 2010-12-16 | Lg Electronics Inc. | Method and apparatus for transmitting frame in wireless local area network (wlan) system |
US9706599B1 (en) | 2009-07-23 | 2017-07-11 | Marvell International Ltd. | Long wireless local area network (WLAN) packets with midambles |
KR101296002B1 (ko) | 2009-08-27 | 2013-08-14 | 엘지전자 주식회사 | 무선랜 시스템에서의 변조 및 코딩 방식 설정 방법 및 이를 지원하는 장치 |
US8259745B2 (en) * | 2010-03-29 | 2012-09-04 | Intel Corporation | Enhanced carrier sensing for multi-channel operation |
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