公开(公告)号：WO2005069806A2

公开(公告)日：2005-08-04

申请号：PCT/US2005/001029

申请日：2005-01-12

Applicant: AVAYA TECHNOLOGY CORP. ,  BENVENISTE, Mathilde

Inventor： BENVENISTE, Mathilde

IPC: H04B1/16 ,  H04B7/005 ,  H04L12/28 ,  H04L12/56 ,  H04W52/02 ,  H04W52/34 ,  H04W52/44 ,  H04W74/04 ,  H04W84/12

CPC classification number: H04W28/10 ,  H04W28/14 ,  H04W52/0216 ,  H04W52/34 ,  H04W52/44 ,  H04W72/12 ,  H04W74/04 ,  H04W84/12 ,  H04W88/08 ,  Y02D70/142 ,  Y02D70/23

Abstract: A method of providing power management in a Wireless Local Area Network (WLAN) is presented. The method includes receiving a Traffic Indication Map (TIM) at a station, indicating the presence of buffered frames, associated with any AC, for the station at an Access Point (AP). The method further includes sending, by the station, one of an uplink data frame if one is buffered, and a null frame to retrieve the buffered frames from said AP. The station remains awake to receive frames from the AP until a downlink frame is received containing an indication that it is the last frame to be transmitted in the service period. The method may further include determining at the end of service period whether there are more frames remaining buffered for the station at the AP.

Abstract translation: 提出了一种在无线局域网（WLAN）中提供电源管理的方法。 该方法包括在站处接收业务指示映射（TIM），指示与接入点（AP）处的站的任何AC相关联的缓冲帧的存在。 所述方法还包括由所述站发送上行链路数据帧中的一个如果被缓冲的，以及从所述AP检索所缓冲的帧的空帧。 站点保持唤醒以从AP接收帧，直到接收到包含在服务周期内要发送的最后一帧的指示的下行链路帧。 该方法还可以包括在服务周期结束时确定在AP处是否有更多的帧被缓冲用于该站。

公开(公告)号：WO2006133415A3

公开(公告)日：2006-12-14

申请号：PCT/US2006/022485

申请日：2006-06-08

Applicant: AVAYA TECHNOLOGY CORP. ,  BENVENISTE, Mathilde

Inventor： BENVENISTE, Mathilde

IPC: H04Q7/24

Abstract: A method, apparatus and computer program product for avoiding exposed nodes in Wireless local Area Networks is presented. The method includes maintaining at a node a first timer (NAV_RTS) for a channel which, if set, prevents the node from authorizing a transmission on the channel to itself and maintaining at the node a second timer (NAV_CTS) for the channel which, if set, prevents the node from transmitting on the channel. The method further includes updating the NAV_RTS when a transmission request (CC-RTS) frame is received having a reservation duration value greater than zero and greater than a current value of the NAV_RTS, and updating the NAV_CTS when a transmission response (CC-CTS) frame is received having a reservation duration value greater than zero and greater than a current value of the NAV_CTS.

公开(公告)号：WO2006133414A2

公开(公告)日：2006-12-14

申请号：PCT/US2006/022484

申请日：2006-06-08

Applicant: AVAYA TECHNOLOGY CORP. ,  BENVENISTE, Mathilde

Inventor： BENVENISTE, Mathilde

IPC: H04J3/16

CPC classification number: H04W74/0816 ,  H04W28/18 ,  H04W28/26 ,  H04W72/14 ,  H04W74/00 ,  H04W84/12

Abstract: A method, apparatus and computer program product for preventing occurrences of the hidden node problem are presented. A transmission request (CC-RTS) is received from a source node, the CC-RTS frame including a reservation duration value indicating the length of time needed for a transmission reservation. A timer is adjusted for the period other nodes must refrain from transmitting on the channel (NAV) equal to a duration of a transmission request/transmission response (CC-RTS/CC-CTS) handshake. When the CC-RTS has been denied, then a second CC-RTS frame is received having a reservation duration value of zero, and when the CC-RTS is accepted then the NAV is extended to remainder of the reservation duration value of the original CC-RTS frame. The CC-RTS and CC-CTS are sent at a more robust PHY mode than traffic frames.

Abstract translation: 提出了一种用于防止隐藏节点问题发生的方法，装置和计算机程序产品。 从源节点接收到传输请求（CC-RTS），CC-RTS帧包括指示传输预留所需时间长度的预约持续时间值。 在其他节点必须避免在等于发送请求/发送响应（CC-RTS / CC-CTS）握手的持续时间的信道（NAV）上进行发送的周期的定时器被调整。 当CC-RTS被拒绝时，接收到具有预留持续时间值为零的第二CC-RTS帧，并且当CC-RTS被接受时，NAV被扩展到原始CC的保留持续时间值的剩余部分 -RTS框架。 CC-RTS和CC-CTS以比业务帧更强大的PHY模式发送。

公开(公告)号：EP1728400A2

公开(公告)日：2006-12-06

申请号：EP05711394.6

申请日：2005-01-12

Applicant: Avaya Technology Corp.

Inventor： BENVENISTE, Mathilde

IPC: H04Q7/24 ,  G08C17/00

CPC classification number: H04W28/10 ,  H04W28/14 ,  H04W52/0216 ,  H04W52/34 ,  H04W52/44 ,  H04W72/12 ,  H04W74/04 ,  H04W84/12 ,  H04W88/08 ,  Y02D70/142 ,  Y02D70/23

Abstract: A method of providing power management in a Wireless Local Area Network (WLAN) is presented. The method includes receiving a Traffic Indication Map (TIM) at a station, indicating the presence of buffered frames, associated with any AC, for the station at an Access Point (AP). The method further includes sending, by the station, one of an uplink data frame if one is buffered, and a null frame to retrieve the buffered frames from said AP. The station remains awake to receive frames from the AP until a downlink frame is received containing an indication that it is the last frame to be transmitted in the service period. The method may further include determining at the end of service period whether there are more frames remaining buffered for the station at the AP.

公开(公告)号：EP1728400B1

公开(公告)日：2018-07-04

申请号：EP05711394.6

申请日：2005-01-12

Applicant: Avaya Technology Corp.

Inventor： BENVENISTE, Mathilde

IPC: H04W28/10 ,  H04W52/02 ,  H04W28/14 ,  H04W52/34 ,  H04W52/44 ,  H04W72/12 ,  H04W74/04 ,  H04W84/12 ,  H04W88/08

CPC classification number: H04W28/10 ,  H04W28/14 ,  H04W52/0216 ,  H04W52/34 ,  H04W52/44 ,  H04W72/12 ,  H04W74/04 ,  H04W84/12 ,  H04W88/08 ,  Y02D70/142 ,  Y02D70/23

Abstract: A method of providing power management in a Wireless Local Area Network (WLAN) is presented. The method includes receiving a Traffic Indication Map (TIM) at a station, indicating the presence of buffered frames, associated with any AC, for the station at an Access Point (AP). The method further includes sending, by the station, one of an uplink data frame if one is buffered, and a null frame to retrieve the buffered frames from said AP. The station remains awake to receive frames from the AP until a downlink frame is received containing an indication that it is the last frame to be transmitted in the service period. The method may further include determining at the end of service period whether there are more frames remaining buffered for the station at the AP.

公开(公告)号：EP1894428A2

公开(公告)日：2008-03-05

申请号：EP06772692.7

申请日：2006-06-08

Applicant: Avaya Technology Corp.

Inventor： BENVENISTE, Mathilde

IPC: H04Q7/24

CPC classification number: H04W74/0816 ,  H04W28/18 ,  H04W28/26 ,  H04W72/14 ,  H04W74/00 ,  H04W84/12

Abstract: A method, apparatus and computer program product for avoiding exposed nodes in Wireless local Area Networks is presented. The method includes maintaining at a node a first timer (NAV_RTS) for a channel which, if set, prevents the node from authorizing a transmission on the channel to itself and maintaining at the node a second timer (NAV_CTS) for the channel which, if set, prevents the node from transmitting on the channel. The method further includes updating the NAV_RTS when a transmission request (CC-RTS) frame is received having a reservation duration value greater than zero and greater than a current value of the NAV_RTS, and updating the NAV_CTS when a transmission response (CC-CTS) frame is received having a reservation duration value greater than zero and greater than a current value of the NAV_CTS.