公开(公告)号：EP2441201A1

公开(公告)日：2012-04-18

申请号：EP10785797.1

申请日：2010-06-08

申请人： Nokia Corporation

发明人： KAKANI, Naveen Kumar ,  MAJKOWSKI, Jakub

IPC分类号： H04L1/16 ,  H04L12/56 ,  H04W24/04

CPC分类号： H04W28/12 ,  H04L1/0083 ,  H04L1/1614 ,  H04L1/1621

摘要： Various example embodiments are disclosed herein. According to an example embodiment, a technique may include receiving, via a wireless network, a frame indicating whether or not regular acknowledgements may be used (or alternatively indicating whether or not data frames with fragmented payloads may be used), in addition to block acknowledgements. In example embodiments, an Add Block Acknowledgement (ADDBA) response frame or a block Acknowledgement may be received indicating whether or not regular acknowledgements may be used to acknowledge receipt of data frames, or alternatively, indicating whether or not data frames with fragmented payloads may be transmitted.

摘要翻译： 本文公开了各种示例性实施例。 根据示例性实施例，技术可以包括经由无线网络接收指示是否可以使用常规确认的帧（或者替代地指示是否可以使用具有分段有效载荷的数据帧），以及块确认 。 在示例实施例中，可以接收添加块确认（ADDBA）响应帧或块确认，指示是否可以使用常规确认来确认数据帧的接收，或者替代地，指示是否具有分段有效载荷的数据帧可以是 传输。

公开(公告)号：EP2274937A1

公开(公告)日：2011-01-19

申请号：EP09742528.4

申请日：2009-05-04

申请人： Nokia Corporation

发明人： KAKANI, Naveen ,  MAJKOWSKI, Jakub

IPC分类号： H04W52/02

CPC分类号： H04W52/0219 ,  H04W52/0216 ,  H04W74/04 ,  H04W76/14 ,  Y02D70/1222 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/162 ,  Y02D70/168 ,  Y02D70/22

摘要： Method, apparatus, and computer program product embodiments are disclosed to enable power save modes of operation between mobile wireless devices for direct data transfer in an infrastructure BSS. An example embodiment inserts in a message that is transmitted by the transmitting mobile wireless device, a specified time when a next active direct data transfer period will start so that the devices can remain in power save mode in a direct data transfer link until that time. Then, when the next active direct data transfer period is about to start, the receiving device sends a trigger signal based on the specified time, the trigger signal indicating that the next period is about to start. This confirms to the transmitting device that the receiving device has awakened, so that the transmitting device may start transmitting the data to the receiving device via the direct data transfer link.

摘要翻译： 公开了方法，装置和计算机程序产品实施例，以实现用于在基础设施BSS中直接数据传输的移动无线设备之间的功率节省模式。 一个示例性实施例插入由发送移动无线设备发送的消息中，当下一活动直接数据传输周期将开始的指定时间，使得设备可以在直到该时间的直接数据传输链路中保持节电模式。 然后，当下一活动直接数据传输周期即将开始时，接收装置根据指定的时间发送一个触发信号，触发信号指示下一个周期即将开始。 这向发送设备确认接收设备已经唤醒，使得发送设备可以经由直接数据传输链路开始向接收设备发送数据。

公开(公告)号：EP2401888A1

公开(公告)日：2012-01-04

申请号：EP10745852.3

申请日：2010-01-22

申请人： Nokia Corporation

发明人： MAJKOWSKI, Jakub ,  KAKANI, Kumar, Naveen

IPC分类号： H04W74/00 ,  H04W76/02 ,  H04W80/00 ,  H04W84/12 ,  H04L12/28 ,  H04L29/08

CPC分类号： H04W76/14 ,  H04W28/18 ,  H04W74/06

摘要： Method, apparatus, and computer program product embodiments are disclosed to improve establishing direct links in the Contention Based Period (CPB) of the MAC superframe. Embodiments of the invention enable scheduled and unscheduled data delivery modes (DDM) for a Contention Based Period. Embodiments of the invention reuse capabilities of the private basic service set (PBSS) Control Point (PCP) device like polling during the announcement time (AT) period in order to identify stations that want to initiate data transmission with other stations. That knowledge is further used by the control node (PCP) to facilitate training procedure between stations through the Contention Based Period (CPB) period or Dynamic service period (SP) periods. The behavior of stations within those periods is divided in two phases: the training phase, referred to as the Beamforming Training Time (BFTT) and data schedule negotiation phase referred to as the Data Delivery Mode Negotiation Time (DNT). Within the training phase, stations learn in which direction they should point their antennas and during the negotiation phase, a decision on data delivery mode is taken. Data delivery modes include mechanisms such as unscheduled delivery, scheduled delivery, or always on delivery. The phases may occur directly, one after the other, or they may be separated in time. Typically, training phase (if needed) should occur before the data negotiation phase. The beginning of the training phase or data negotiation phase (if training phase is not needed) is indicated via a meeting point.