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Trigger frames adapted to packet-based policies in an 802.11 network

專利號
US10980060B2
公開日期
2021-04-13
申請人
CANON KABUSHIKI KAISHA(JP Tokyo)
發(fā)明人
Stéphane Baron; Romain Guignard; Pascal Viger; Patrice Nezou
IPC分類
H04W74/08; H04W72/12; H04W84/12; H04W74/06; H04W28/26
技術(shù)領(lǐng)域
rus,ru,txop,nodes,traffic,tf,ap,node,in,channel
地域: Tokyo

摘要

In 802.11ax networks with access points, a trigger frame offers scheduled and random resource units to nodes for data uplink communication to the access points. To make more effective the usage of the network, the access point may design the trigger frame to force the nodes to send some categories of data. Resource units may be defined in trigger frames to be dedicated to small packets or to some access category data. Adjusting the time length of the resource units helps restricting the type of data that can be conveyed by the resource units. Also, using various frequency widths for resource units in the same trigger frame helps reducing padding in the resource units when various traffic types coexist.

說明書

For instance, when implementing the first approach of the first main embodiments of the invention, an illustrating example of which being described below with reference to FIGS. 8 and 9, MU management module 705 includes a small packet (SP) management module 7050, including a “TF Handler” sub-block 7051 for the AP to implement the algorithm of FIG. 8 and/or a “RU selector” sub-block 7052 for each node to implement the algorithm of FIG. 9.

When implementing the second approach of the first main embodiments of the invention, an illustrating example of which being described below with reference to FIGS. 10 and 11, MU management module 705 includes an access category (AC—or traffic type) management module 7052, which also includes a “TF Handler” sub-block for the AP to implement one of the algorithms of FIG. 10 and/or a “RU selector” sub-block for each node to implement the algorithm of FIG. 11.

When implementing the other main embodiments of the invention, an illustrating example of which being described below with reference to FIGS. 12 to 14, MU management module 705 includes a frequency width management module 7053, which also includes a “TF Handler” sub-block for the AP to implement the algorithm of FIG. 12 and/or a “RU selector” sub-block for each node to implement the algorithm of FIG. 14.

權(quán)利要求

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