公开(公告)号：EP1905179B1

公开(公告)日：2018-08-08

申请号：EP06772309.8

申请日：2006-06-06

Applicant: Cisco Technology, Inc.

Inventor： LAM, Alex, C., K. ,  HART, Brian, D. ,  KRISCHER, Mark ,  STEPHENSON, David, Sheldon

IPC: H04W48/10 ,  H04W84/12

CPC classification number: H04W48/10 ,  H04W84/12

Abstract: A method, apparatus, and software containing computer readable code to implement the method implemented in a first wireless device. The method includes, for a particular network identifier active in a wireless network, transmitting frames configured to advertise the infrastructure network of the particular network identifier. The transmitting of off-channel beacons is in a provided channel different than the channel in which the access point of the infrastructure wireless of the particular network identifier transmits beacon frames. The transmitting of off-channel beacons further is at a rate higher than the beacon rate frame at which the access point of the infrastructure wireless of the particular network identifier transmits beacon frames.

公开(公告)号：EP2754310B1

公开(公告)日：2017-07-26

申请号：EP12753298.4

申请日：2012-08-16

Applicant: Cisco Technology, Inc.

Inventor： PANDEY, Santosh ,  HART, Brian, D.

IPC: H04W8/00 ,  H04W84/18

CPC classification number: H04W8/005 ,  H04W84/18

公开(公告)号：EP2653002A1

公开(公告)日：2013-10-23

申请号：EP11794275.5

申请日：2011-11-14

Applicant: Cisco Technology, Inc.

Inventor： HEDAYAT, Ahmadreza ,  HART, Brian, D.

IPC: H04W74/08 ,  H04L5/00

Abstract: Techniques are provided for a multi-user reservation sequence used when transmitting a multi-user transmission in a wireless network. At a wireless access point device configured to operate in a wireless network, a multi-user request-to-send packet is transmitted as part of a multi-user reservation sequence prior to a multi-user transmission from the wireless access point device to a plurality of wireless client devices that are the intended recipients for the multi-user transmission. The multi-user request-to-send packet comprises duration information and address information configured to address at least some of the plurality of wireless client devices. Clear-to-send packets transmitted from two or more of the plurality of wireless client devices in response to the multi-user request-to-send packet are received at the wireless access point device. Each clear-to-send packet comprises identical content. In some scenarios, the multi-user request-to-send packet is preceded by a single-user request-to-send packet directed to a designated wireless client device.