JP6122039B2 - 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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- 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
- 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
- H04L1/1685—Details of the supervisory signal the supervisory signal being transmitted in response to a specific request, e.g. to a polling signal
-
- 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
- H04L1/18—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
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- H04W72/044—Wireless resource allocation based on the type of the allocated resource
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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
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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
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
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- 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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- Computer Networks & Wireless Communication (AREA)
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- 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 (17)
- 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通信するように構成され、前記WTRUは、
前記APが前記複数のWTRUの前記MU−PCAグループにMU送信としてデータを送信する準備ができていることを示しているグループ送信要求(G−RTS)メッセージを、前記APから、前記WTRUに関連付けられた前記複数のチャネルのうちのチャネルを介して受信するように構成された受信機であって、前記G−RTSは、前記MU−PCAグループにおける前記複数のWTRUの各々に、前記複数のチャネルを介して一斉に前記APによって提供される、受信機と、
前記WTRUに関連付けられた前記チャネルを介して、前記WTRUが前記WTRUに関連付けられた前記チャネル上で受信する準備ができていることを示している第1の送信可(CTS)メッセージを前記APに送信するように構成された送信機と
を備え、
前記受信機は、前記WTRUに関連付けられた前記チャネルを介して、前記MU送信としてデータメッセージを前記APから受信するように構成され、
前記送信機は、前記WTRUに関連付けられた前記チャネルを介して、少なくとも1つのフレームを前記APに送信するように構成され、前記少なくとも1つのフレームは、長さが1ビットであるアップリンク(UL)の表示を含み、および前記表示は、前記WTRUが前記APに送信するためのULデータを有するという条件で、予め定められたビット値に設定される
ことを特徴とするWTRU。 - 前記表示が前記予め定められたビット値に設定されるという条件で、
前記受信機は、前記WTRUに関連付けられた前記チャネルを介して、第2のCTSメッセージを前記APから受信するようにさらに構成され、
前記送信機は、前記受信機が前記第2のCTSメッセージを受信していることに応答して、前記WTRUに関連付けられた前記チャネルを介して、前記ULデータを前記APに送信するようにさらに構成される
ことを特徴とする請求項1に記載のWTRU。 - 前記送信機は、前記複数のWTRUのうちの他が前記複数のチャネルの残りのチャネルを介して他のCTSメッセージを送信する間に、前記第1のCTSメッセージを送信するように構成される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つのフレームは、肯定応答(ACK)メッセージであることを特徴とする請求項1に記載のWTRU。
- 前記第1のCTSメッセージは、グループCTS(G−CTS)メッセージであり、および前記少なくとも1つのフレームは、グループ肯定応答(G−ACK)メッセージであることを特徴とする請求項1に記載のWTRU。
- 前記送信機は、前記受信機が前記APから前記データメッセージを正しく受信していることに応答して、前記少なくとも1つのフレームを送信するように構成されることを特徴とする請求項1に記載のWTRU。
- 前記受信機は、前記複数のWTRUのうちの他が前記複数のチャネルの残りのチャネルを介して他のデータメッセージを受信する間に、前記WTRUに関連付けられた前記チャネルを介して前記データメッセージを受信するように構成されることを特徴とする請求項1に記載のWTRU。
- 前記送信機は、前記複数のWTRUのうちの他が肯定応答メッセージを送信する間に、前記少なくとも1つのフレームを送信するように構成されることを特徴とする請求項1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通信するように構成され、前記方法は、
前記WTRUに関連付けられた前記複数のチャネルを介して、前記APが前記複数のWTRUの前記MU−PCAグループにMU送信としてデータを送信する準備ができていることを示しているグループ送信要求(G−RTS)メッセージを、前記APから、前記WTRUに関連付けられた前記複数のチャネルのうちのチャネルを介して受信するステップであって、前記G−RTSは、前記MU−PCAグループにおける前記複数のWTRUの各々に、前記複数のチャネルを介して一斉に前記APによって提供される、ステップと、
前記WTRUに関連付けられた前記チャネルを介して、前記WTRUが前記WTRUに関連付けられた前記チャネル上で受信する準備ができていることを示している第1の送信可(CTS)メッセージを前記APに送信するステップと、
前記WTRUに関連付けられた前記チャネルを介して、前記MU送信としてデータメッセージを前記APから受信するステップと、
前記WTRUに関連付けられた前記チャネルを介して、少なくとも1つのフレームを前記APに送信するステップであって、前記少なくとも1つのフレームは、長さが1ビットであるアップリンク(UL)の表示を含み、前記表示は、前記WTRUが前記APに送信するためのULデータを有するという条件で、予め定められたビット値に設定される、ステップと
を備えたことを特徴とする方法。 - 前記表示が前記予め定められたビット値に設定されるという条件で、
前記WTRUに関連付けられた前記チャネルを介して、第2のCTSメッセージを前記APから受信するステップと、
前記第2のCTSメッセージを受信していることに応答して、前記WTRUに関連付けられた前記チャネルを介して、前記ULデータを前記APに送信するステップと
をさらに備えたことを特徴とする請求項9に記載の方法。 - 前記第1のCTSメッセージを送信する前記ステップは、前記複数のWTRUのうちの他が前記複数のチャネルの残りのチャネルを介して他のCTSメッセージを送信する間に、前記第1のCTSメッセージを送信するステップを含むことを特徴とする請求項9に記載の方法。
- 前記少なくとも1つのフレームは、前記複数のWTRUによる肯定応答(ACK)メッセージであることを特徴とする請求項9に記載の方法。
- 前記第1のCTSメッセージは、グループCTS(G−CTS)メッセージであり、および前記少なくとも1つのフレームは、グループ肯定応答(G−ACK)メッセージであることを特徴とする請求項9に記載の方法。
- 前記少なくとも1つのフレームを送信する前記ステップは、前記APから前記データメッセージを正しく受信していることに応答して、前記複数のWTRUのうちの他が肯定応答メッセージを送信する間に、前記少なくとも1つのフレームを送信するステップを含むことを特徴とする請求項9に記載の方法。
- 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)グループに属し、および前記MU−PCAグループ内の複数のチャネルを管理するように構成されたアクセスポイント(AP)であって、前記APは、
前記APが前記複数のWTRUの前記MU−PCAグループにMU送信としてデータを送信する準備ができていることを示しているグループ送信要求(G−RTS)メッセージを前記WTRUに関連付けられたチャネルを介して前記WTRUに送信するように構成された送信機であって、前記送信機は、前記MU−PCAグループにおける前記複数のWTRUの各々に、前記複数のチャネルを介して一斉に前記G−RTSを送信する、送信機と、
前記WTRUに関連付けられた前記チャネルを介して、前記WTRUが前記WTRUに関連付けられた前記チャネル上で受信する準備ができていることを示している第1の送信可(CTS)メッセージを前記WTRUから受信するように構成された受信機と
を備え、
前記送信機は、前記WTRUに関連付けられた前記チャネルを介して、前記MU送信として、データメッセージを前記WTRUに送信するように構成され、
前記受信機は、前記WTRUに関連付けられた前記チャネルを介して、少なくとも1つのフレームを前記WTRUから受信するように構成され、前記少なくとも1つのフレームは、長さが1ビットであるアップリンク(UL)の表示を含み、および前記表示は、前記WTRUが前記APに送信するためのULデータを有するという条件で、予め定められたビット値に設定される
ことを特徴とするAP。 - 前記表示が前記予め定められたビット値に設定されるという条件で、
前記送信機は、前記WTRUに関連付けられた前記チャネルを介して、第2のCTSメッセージを前記WTRUに送信するようにさらに構成され、
前記受信機は、前記第2のCTSメッセージを送信することに応答して、前記WTRUに関連付けられた前記チャネルを介して、前記ULデータを前記WTRUから受信するようにさらに構成される
ことを特徴とする請求項15に記載のAP。 - 前記受信機は、前記複数のWTRUの他から肯定応答メッセージを受信している間に、前記少なくとも1つのフレームを受信するように構成されることを特徴とする請求項15に記載のAP。
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| PCT/US2013/028302 WO2013130793A1 (en) | 2012-03-01 | 2013-02-28 | Multi-user parallel channel access in wlan systems |
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