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1. 发明授权

US07804800B2 Efficient training schemes for MIMO based wireless networks 有权
标题翻译：基于MIMO的无线网络的高效训练方案
公开(公告)号：US07804800B2
公开(公告)日：2010-09-28
申请号：US11395363
申请日：2006-03-31
申请人： Qinghua Li , Xintian E. Lin , Adrian P. Stephens , Keith Holt , Eldad Perahia
发明人： Qinghua Li , Xintian E. Lin , Adrian P. Stephens , Keith Holt , Eldad Perahia
IPC分类号： H04W4/00
CPC分类号： H04B7/0447 , H04B7/0417 , H04B7/0617 , H04B7/0626 , H04B7/0632 , H04B7/0634 , H04B7/0636 , H04B7/0643
摘要： Schemes are disclosed for efficiently training MIMO channels in wireless networks. In at least one embodiment, multiple STAs in a network may share a single channel sounding packet to develop corresponding beamforming matrices or CSI.
摘要翻译：公开了用于有效训练无线网络中的MIMO信道的方案。在至少一个实施例中，网络中的多个STA可以共享单个信道探测分组以开发相应的波束形成矩阵或CSI。

2. 发明授权

US07567612B2 SDMA communications with non-immediate block acknowledgment 有权
标题翻译： SDMA通信与非即时块确认
公开(公告)号：US07567612B2
公开(公告)日：2009-07-28
申请号：US11923631
申请日：2007-10-24
申请人： Adrian P. Stephens , Qinghua Li , Xintian E. Lin , Minnie Ho
发明人： Adrian P. Stephens , Qinghua Li , Xintian E. Lin , Minnie Ho
IPC分类号： H04B1/38 , H04L12/42
CPC分类号： H04L1/16 , H04L1/1854 , H04L1/188
摘要： In Spatial Division Multiple Access (SDMA) communications, mobile devices that are transmitting to a base substantially simultaneously during a predetermined communications phase may wait until after an end of the predetermined communications phase to receive acknowledgments to their transmissions, so that a mobile device making a relatively short transmission does not experience an acknowledgement timeout while another mobile device is still completing a relatively long transmission. In some embodiments, the mobile devices may transmit a non-immediate block acknowledgement request during the communications phase.
摘要翻译：在空分多址（SDMA）通信中，在预定通信阶段基本上同时发送到基站的移动设备可以等待直到预定通信阶段结束以接收对其传输的确认，从而使得移动设备相对短的传输在另一移动设备仍然完成相对长的传输时不经历确认超时。在一些实施例中，移动设备可以在通信阶段期间发送非即时块确认请求。

3. 发明授权

US07839836B2 Arranging SDMA poll groups by response length 有权
标题翻译：通过响应长度安排SDMA轮询组
公开(公告)号：US07839836B2
公开(公告)日：2010-11-23
申请号：US10759472
申请日：2004-01-15
申请人： Adrian P. Stephens , Qinghua Li , Xintian E. Lin , Minnie Ho
发明人： Adrian P. Stephens , Qinghua Li , Xintian E. Lin , Minnie Ho
IPC分类号： H04B7/00 , H04H20/71 , H04J3/16 , H04W4/00
CPC分类号： H04W74/02 , H04W16/28 , H04W52/24 , H04W52/34 , H04W52/42
摘要： A base station may organize poll groups into groups having similar predicted durations of subsequent responses. In one embodiment predicted durations may be provided by the devices that are to be polled. In another embodiment the predicted durations may be based on past responses from the devices that are to be polled.
摘要翻译：基站可以将轮询组组织成具有相似的后续响应预测持续时间的组。在一个实施例中，预期持续时间可以由待轮询的设备提供。在另一个实施例中，预测持续时间可以基于来自要轮询的设备的过去响应。

4. 发明授权

US07408908B2 Variable SDMA ACK timeout 有权
标题翻译：可变SDMA ACK超时
公开(公告)号：US07408908B2
公开(公告)日：2008-08-05
申请号：US10759473
申请日：2004-01-15
申请人： Qinghua Li , Xintian E. Lin , Minnie Ho , Adrian P. Stephens
发明人： Qinghua Li , Xintian E. Lin , Minnie Ho , Adrian P. Stephens
IPC分类号： H04Q7/24
CPC分类号： H04W88/06 , H04L1/0001 , H04L1/004 , H04L1/08 , H04L1/16 , H04L1/1854 , H04L1/188 , H04L27/261 , H04W16/28 , H04W74/02
摘要： In a spatial division multiple access system that employs acknowledgements to variable length transmissions within a timeout period, a station that has completed its transmission may delay beginning the timeout period until it determines that other stations on the same channel have completed their transmissions.
摘要翻译：在空时划分多址系统中，在超时时段内采用对可变长度传输的确认，已完成其传输的站可延迟开始超时周期，直到确定相同信道上的其他站已经完成其传输。

5. 发明申请

US20080181162A1 SDMA COMMUNICATIONS WITH NON-IMMEDIATE BLOCK ACKNOWLEDGMENT 有权
标题翻译： SDMA通信与非立即块确认
公开(公告)号：US20080181162A1
公开(公告)日：2008-07-31
申请号：US11923631
申请日：2007-10-24
申请人： Adrian P. Stephens , Qinghua Li , Xintian E. Lin , Minnie Ho
发明人： Adrian P. Stephens , Qinghua Li , Xintian E. Lin , Minnie Ho
IPC分类号： H04J3/16 , H04J15/00
CPC分类号： H04L1/16 , H04L1/1854 , H04L1/188
摘要： In Spatial Division Multiple Access (SDMA) communications, mobile devices that are transmitting to a base substantially simultaneously during a predetermined communications phase may wait until after an end of the predetermined communications phase to receive acknowledgments to their transmissions, so that a mobile device making a relatively short transmission does not experience an acknowledgement timeout while another mobile device is still completing a relatively long transmission. In some embodiments, the mobile devices may transmit a non-immediate block acknowledgement request during the communications phase.
摘要翻译：在空分多址（SDMA）通信中，在预定通信阶段基本上同时发送到基站的移动设备可以等待直到预定通信阶段结束以接收对其传输的确认，从而使得移动设备相对短的传输在另一移动设备仍然完成相对长的传输时不经历确认超时。在一些实施例中，移动设备可以在通信阶段期间发送非即时块确认请求。

6. 发明申请

US20110243073A1 LEGACY OPERATIONS IN A MU MIMO WIRELESS NETWORK 有权
标题翻译：一个MU MIMO无线网络中的LEGACY操作
公开(公告)号：US20110243073A1
公开(公告)日：2011-10-06
申请号：US12752715
申请日：2010-04-01
申请人： Michelle X. Gong , Eldad Perahia , Adrian P. Stephens
发明人： Michelle X. Gong , Eldad Perahia , Adrian P. Stephens
IPC分类号： H04W72/04
CPC分类号： H04L5/0055 , H04L1/1854 , H04L1/1861 , H04L5/0053 , H04L5/0094
摘要： In a network that contains both new devices capable of using wide channels and legacy devices that can only use narrow channels, the network controller may define which devices are to use which narrow channels for concurrently transmitting uplink acknowledgements. Further, the network controller may schedule the devices to respond in groups based on the received signal strength of their transmissions at the network controller.
摘要翻译：在包含能够使用宽信道的新设备和只能使用窄信道的传统设备的网络中，网络控制器可以定义哪些设备将使用哪些窄信道来同时发送上行确认。此外，网络控制器可以根据其在网络控制器处的传输的接收信号强度来调度设备以分组的方式进行响应。

7. 发明授权

US08761065B2 Techniques for wakeup signaling for a very low power WLAN device 有权
标题翻译：用于非常低功率WLAN设备的唤醒信令的技术
公开(公告)号：US08761065B2
公开(公告)日：2014-06-24
申请号：US12947215
申请日：2010-11-16
申请人： Adrian P. Stephens , Eldad Perahia
发明人： Adrian P. Stephens , Eldad Perahia
IPC分类号： G08C17/00
CPC分类号： G06F1/3278 , H04W52/0229 , Y02D10/157 , Y02D70/00 , Y02D70/122 , Y02D70/142
摘要： An embodiment of the present invention provides a method of wakeup signaling for a very low power wireless local area network device (WLAN) device, comprising transmitting by an access point operable in the WLAN of a wake-up signal that can be received using low-power techniques at a receiver associated with the device.
摘要翻译：本发明的一个实施例提供了一种用于非常低功率无线局域网设备（WLAN）设备的唤醒信令的方法，包括由WLAN中可操作的接入点发送可以使用低功率无线局域网设备（WLAN）接收的唤醒信号，与设备相关的接收机的功率技术。

8. 发明申请

US20140044112A1 METHODS AND ARRANGEMENTS FOR BEAMFORMING REPORTS IN WIRELESS NETWORKS 有权
标题翻译：无线网络中波束报告的方法和安排
公开(公告)号：US20140044112A1
公开(公告)日：2014-02-13
申请号：US13730914
申请日：2012-12-29
申请人： Adrian P. Stephens , Thomas J. Kenney , Eldad Perahia , Minyoung Park , Shahrnaz Azizi
发明人： Adrian P. Stephens , Thomas J. Kenney , Eldad Perahia , Minyoung Park , Shahrnaz Azizi
IPC分类号： H04W24/10
CPC分类号： H04W24/10 , H04B7/0617 , H04B7/0643 , H04W16/28
摘要： Logic of an access point may transmit a null data packet for beamforming training and transmit a beamforming report poll to the first station on a user list before receiving a transmission from the first station on the user list. Logic may wait for a timeout period to determine whether the first station on the user list will respond to the null data packet prior to transmitting the beamforming report poll. Logic may receive from the first station an indication that the first station is a slow beamforming report responder. Logic may reorder the user list to position a fast beamforming responder as the first station. And logic of the station may determine that the station is unable to complete and transmit the report so the logic may wait to transmit the beamforming report in response to a subsequent beamforming report poll frame.
摘要翻译：接入点的逻辑可以在从用户列表上的第一站接收到传输之前，发送用于波束成形训练的空数据分组，并将波束成形报告轮询发送到用户列表上的第一台。逻辑可以等待超时时段来确定在发送波束成形报告轮询之前，用户列表上的第一站是否将响应空数据分组。逻辑可以从第一站接收指示第一站是慢波束形成报告应答器的指示。逻辑可以重新排序用户列表以将快速波束形成响应者定位为第一站。并且站的逻辑可以确定站不能完成并发送报告，使得逻辑可以等待响应于随后的波束成形报告轮询帧来发送波束成形报告。

9. 发明申请

US20140192820A1 METHODS AND ARRANGEMENTS TO MITIGATE COLLISIONS IN WIRELESS NETWORKS 审中-公开
标题翻译：在无线网络中缓解冲突的方法和安排
公开(公告)号：US20140192820A1
公开(公告)日：2014-07-10
申请号：US13931918
申请日：2013-06-29
申请人： Shahrnaz Azizi , Adrian P. Stephens , Thomas J. Kenney , Eldad Perahia , Minyoung Park
发明人： Shahrnaz Azizi , Adrian P. Stephens , Thomas J. Kenney , Eldad Perahia , Minyoung Park
IPC分类号： H04W28/04 , H04W74/08
CPC分类号： H04W72/04 , C12N15/74 , H04W74/0816 , H04W84/18
摘要： Logic for collision mitigation between transmissions of wireless transmitters and receivers operating at different bandwidths. Logic of the receivers may be capable of receiving and detecting signals transmitted at narrower bandwidths. In several embodiments, the receivers comprise a clear channel assessment logic that implements a guard interval (or cyclic prefix) detector to detect transmissions at narrower bandwidths. For instance, a two MegaHertz (MHz) bandwidth receiver may implement a guard interval detector to detect 1 MHz bandwidth signals and a 16M Hz bandwidth receiver may implement logic to detect one or more 1 MHz bandwidth signals and any other combination of, e.g., 1, 2, 4, 8 MHz bandwidth signals. In many embodiments, the guard interval detector may be implemented to detect guard intervals on a channel designated as a primary channel as well as on one or more non-primary channels.
摘要翻译：用于在不同带宽下工作的无线发射机和接收机的传输之间的冲突缓解的逻辑。接收机的逻辑可能能够接收和检测在较窄带宽上传输的信号。在几个实施例中，接收机包括清除信道评估逻辑，其实现保护间隔（或循环前缀）检测器以检测较窄带宽的传输。例如，两兆赫（MHz）带宽接收机可以实现一个保护间隔检测器来检测1 MHz带宽信号，一个16M Hz带宽接收器可以实现逻辑检测一个或多个1 MHz带宽信号和任何其他组合，例如1 ，2,4,8 MHz带宽信号。在许多实施例中，保护间隔检测器可被实现为检测被指定为主信道以及在一个或多个非主信道上的信道上的保护间隔。

10. 发明申请

US20140098724A1 METHODS AND ARRANGEMENTS FOR FREQUENCY SELECTIVE TRANSMISSION 有权
标题翻译：频率选择传输的方法和安排
公开(公告)号：US20140098724A1
公开(公告)日：2014-04-10
申请号：US13730997
申请日：2012-12-29
申请人： Minyoung Park , Thomas J. Kenney , Eldad Perahia , Shahrnaz Azizi , Adrian P. Stephens
发明人： Minyoung Park , Thomas J. Kenney , Eldad Perahia , Shahrnaz Azizi , Adrian P. Stephens
IPC分类号： H04W72/04
CPC分类号： H04W52/0235 , H04L5/006 , H04L25/0224 , H04W72/02 , H04W72/042 , H04W72/12 , Y02D70/00 , Y02D70/142 , Y02D70/144
摘要： Logic may comprise hardware and/or code to select a narrow band from a wider channel bandwidth. Logic of communications between devices may select, e.g., a 1 or 2 MHz sub-channel from a wider channel bandwidth such as 4, 8, and 16 MHz and transmit packets on the selected 1 or 2 MHz channel. For instance, a first device may comprise an access point and a second device may comprise a station such as a low power sensor or a meter that may, e.g., operate on battery power. Logic of the devices may facilitate a frequency selective transmission scheme. Logic of the access point may transmit sounding packets or control frames across the sub-channels of the wide bandwidth channel, facilitating selection by the stations of a sub-channel and subsequent communications on the sub-channel between the access point and the station.
摘要翻译：逻辑可以包括从更宽的信道带宽中选择窄带的硬件和/或代码。设备之间通信的逻辑可以从诸如4,8和16MHz的更宽的信道带宽中选择例如1或2MHz的子信道，并在选择的1或2MHz信道上发送分组。例如，第一设备可以包括接入点，并且第二设备可以包括诸如低功率传感器或可以例如对电池电力进行操作的仪表的站。设备的逻辑可以促进频率选择性传输方案。接入点的逻辑可以在宽带宽信道的子信道上发送探测分组或控制帧，便于各个小区的子信道选择和接入点与站之间子信道上的后续通信。

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