专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2016144887A1 SHORT PACKET OPTIMIZATION IN WLAN SYSTEMS 审中-公开
标题翻译： WLAN系统中的短路包优化
公开(公告)号：WO2016144887A1
公开(公告)日：2016-09-15
申请号：PCT/US2016/021216
申请日：2016-03-07
申请人： INTERDIGITAL PATENT HOLDINGS, INC.
发明人： XI, Fengjun , LOU, Hanqing , OTERI, Oghenekome , SHAH, Nirav B. , OLESEN, Robert L. , JIN, Yuan Sheng , XIA, Pengfei , LA SITA, Frank , ZHANG, Guodong
IPC分类号： H04L1/16 , H04L1/18 , H04L1/00
CPC分类号： H04W28/06 , H04B7/0452 , H04L1/1614 , H04L1/1621 , H04L1/1861 , H04L5/0007 , H04L5/0055 , H04L2001/0093 , H04W28/04 , H04W72/121 , H04W84/12
摘要： Mechanisms may be used for aggregating acknowledgement (ACK), block ACK (BA) and/or short packets transmissions for multi-user (MU) wireless communication systems. Aggregation mechanisms may be used for uplink (UL) and/or downlink (DL) orthogonal frequency division multiple access (OFDMA), and/or UL/DL multiple-user multiple input multiple output (MU-MIMO) transmissions, for example. Multi-user short packets may be aggregated and/or simultaneously transmitted for DL, UL, or peer-to-peer (P2P) transmissions.
摘要翻译：机制可用于聚合多用户（MU）无线通信系统的确认（ACK），块ACK（BA）和/或短分组传输。聚合机制可以用于例如上行链路（UL）和/或下行链路（DL）正交频分多址（OFDMA）和/或UL / DL多用户多输入多输出（MU-MIMO）传输。可以针对DL，UL或对等（P2P）传输聚合和/或同时发送多用户短分组。

2. 发明申请

WO2013134231A1 METHOD AND APPARATUS FOR POWER SAVINGS IN A WIRELESS LOCAL AREA NETWORK 审中-公开
标题翻译：无线局域网节省电力的方法和装置
公开(公告)号：WO2013134231A1
公开(公告)日：2013-09-12
申请号：PCT/US2013/029060
申请日：2013-03-05
申请人： INTERDIGITAL PATENT HOLDINGS, INC.
发明人： WANG, Xiaofei , GHOSH, Monisha , WANG, Lei , SHAH, Nirav B. , ZHANG, Guodong , GRANDHI, Sudheer A.
IPC分类号： H04W52/02
CPC分类号： H04W52/0203 , H04W52/0206 , H04W52/0219 , Y02D70/00 , Y02D70/1224 , Y02D70/1226 , Y02D70/1242 , Y02D70/1244 , Y02D70/1246 , Y02D70/1262 , Y02D70/1264 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/164 , Y02D70/23
摘要： A method and apparatus for power savings in a wireless local area network (WLAN) are disclosed. A station (STA) may receive parameters that associate the STA to a specific group of STAs and perform a channel access during a period that is allowed for the group of STAs based on the parameters. The STA may receive information regarding an access slot that is allowed for the group of STAs and access a channel during the access slot. The STA may receive a schedule for wake up from a doze state and goes in and out of the doze state based on the schedule. A highest channel access priority may be provided to a sensor or meter type of STA. The STA may indicate to an access point (AP) that the STA will not listen to a traffic indication map (TIM) or a delivery TIM (DTIM) in a beacon.
摘要翻译：公开了一种用于无线局域网（WLAN）中的功率节省的方法和装置。站（STA）可以接收将STA与特定组STA相关联的参数，并且在基于参数的STA组允许的时段期间执行信道访问。 STA可以接收关于STA组允许的接入时隙的信息，并且在接入时隙期间访问信道。 STA可以接收从瞌睡状态唤醒的时间表，并且基于时间表进入和离开瞌睡状态。可以向传感器或仪表类型的STA提供最高信道访问优先级。 STA可以向接入点（AP）指示STA将不会监听信标中的业务指示图（TIM）或传送TIM（DTIM）。

3. 发明申请

WO2014071308A1 POWER CONTROL METHODS AND PROCEDURES FOR WIRELESS LOCAL AREA NETWORKS 审中-公开
标题翻译：无线局域网的功率控制方法和程序
公开(公告)号：WO2014071308A1
公开(公告)日：2014-05-08
申请号：PCT/US2013/068322
申请日：2013-11-04
申请人： INTERDIGITAL PATENT HOLDINGS, INC.
发明人： OTERI, Oghenekome , XIA, Pengfei , LOU, Hanqing , GHOSH, Monisha , OLESEN, Robert L. , SHAH, Nirav B. , LA SITA, Frank
IPC分类号： H04W52/28
CPC分类号： H04W52/10 , H04W24/10 , H04W52/08 , H04W52/28 , H04W84/12 , Y02D70/00
摘要： A method and apparatus is described herein for performing loop power control and transmission power control (TPC) in a wireless network. Described herein are methods including using separate power control loops for communication with an entire wireless network and for point-to-point (P2P) transmissions and separate power control loops for omni-directional and directional beamformed transmissions. Also described herein are methods and apparatuses for requesting clear channel assessment (CCA) measurements and adjusting CCA thresholds and transmission power based on the reported measurements. Methods and apparatuses are also described wherein access points (APs) coordinate transmission power to reduce interference with each other and to determine optimal transmission power to each mobile station (STA).
摘要翻译：这里描述了一种用于在无线网络中执行环路功率控制和发射功率控制（TPC）的方法和装置。这里描述的方法包括使用单独的功率控制回路来与整个无线网络进行通信，并且用于点对点（P2P）传输和用于全方向和定向波束形成的传输的单独的功率控制环路。本文还描述了用于根据报告的测量请求清除信道评估（CCA）测量和调整CCA阈值和传输功率的方法和装置。还描述了方法和装置，其中接入点（AP）协调传输功率以减少彼此的干扰并确定对每个移动台（STA）的最佳发射功率。

4. 发明申请

WO2013169389A1 MULTI-USER MULTIPLE INPUT MULTIPLE OUTPUT COMMUNICATIONS IN WIRELESS LOCAL AREA NETWORKS AND WIRELESS TRANSMIT AND RECEIVE UNITS 审中-公开
标题翻译：无线局域网多用户输入多路输出通讯及无线传输及接收单元
公开(公告)号：WO2013169389A1
公开(公告)日：2013-11-14
申请号：PCT/US2013/032321
申请日：2013-03-15
申请人： INTERDIGITAL PATENT HOLDINGS, INC.
发明人： GHOSH, Monisha , WANG, Xiaofei , LOU, Hanqing , SHAH, Nirav B. , ZHANG, Guodong , LA SITA, Frank
IPC分类号： H04B7/04 , H04B7/06 , H04B17/00 , H04W52/36 , H04W52/14
CPC分类号： H04B7/0851 , H04B7/0404 , H04B7/0452 , H04B7/0628 , H04B7/0643 , H04B7/066 , H04B17/12 , H04L27/266 , H04W52/146 , H04W52/365 , H04W56/004 , H04W72/042 , H04W84/12 , H04W88/08
摘要： WTRUs, access points (APs) and methods thereon are disclosed. A method on a WTRU may include receiving a message from an AP that comprises a beamformee capability element; sending a second message to the AP that comprises a beamformer capability element; and receiving, from the AP, a third message in response to the second message that indicates a group to which the WTRU is assigned. The group may be based on the beamformer capability element and the group may indicate UL transmission information to be used by the WTRU. A method on an AP may include determining a group for multiple WTRUs based on a received beamformer capability element. A method on a WTRU may include sending to an AP a message with a low overhead preamble for UL MU-MIMO. The low overhead preamble may include LTFs that enable the AP to distinguish the WTRU from other WTRUs.
摘要翻译： WTRU，接入点（AP）及其上的方法被公开。 WTRU上的方法可以包括从AP接收包括波束形成器能力元素的消息; 向AP发送包括波束形成器能力元素的第二消息; 以及响应于指示所述WTRU被分配到的组的所述第二消息，从所述AP接收第三消息。该组可以基于波束形成器能力元素，并且该组可以指示要由WTRU使用的UL传输信息。 AP上的方法可以包括基于接收的波束形成器能力元素来确定多个WTRU的组。 WTRU上的方法可以包括向AP发送具有用于UL MU-MIMO的低开销前导码的消息。低开销前导码可以包括使得AP能够区分WTRU与其他WTRU的LTF。

5. 发明申请

WO2013130793A1 MULTI-USER PARALLEL CHANNEL ACCESS IN WLAN SYSTEMS 审中-公开
标题翻译： WLAN系统中的多用户并行通道访问
公开(公告)号：WO2013130793A1
公开(公告)日：2013-09-06
申请号：PCT/US2013/028302
申请日：2013-02-28
申请人： INTERDIGITAL PATENT HOLDINGS, INC.
发明人： WANG, Xiaofei , LOU, Hanqing , GHOSH, Monisha , SHAH, Nirav B. , ZHANG, Guodong , MURIAS, Ronald G.
IPC分类号： H04W74/08
CPC分类号： H04W72/121 , H04B17/318 , H04L1/0025 , H04L1/007 , H04L1/1664 , H04L1/1685 , H04L1/1861 , H04W72/04 , H04W72/0413 , H04W72/0453 , H04W72/1278 , H04W74/004 , H04W74/006 , H04W74/04 , H04W74/06 , H04W74/0816 , H04W84/12
摘要： A method and apparatus may provide multi-user parallel channel access (MU-PCA) and/or single-user parallel channel access (SU-PCA) using transmit and/or receive with symmetrical bandwidth, in the downlink (DL), uplink (UL), or combined DL and UL. SU-PCA and MU-PCA may support unequal modulation and coding schemes (MCS) and unequal transmit power. Medium access control (MAC) layer, Physical layer (PHY), and mixed and PHY layer methods and procedures may support UL, DL and combined UL and DL SU-PCA and MU-PCA using transmit and/or receive with symmetrical bandwidth. MU-PCA and/or SU-PCA may also be supported by MAC and PHY layer designs and procedures for downlink, uplink and combined uplink and downlink using transmit/receive with asymmetrical bandwidth.
摘要翻译：一种方法和装置可以在下行链路（DL），上行链路（DL）中使用具有对称带宽的发射和/或接收来提供多用户并行信道接入（MU-PCA）和/或单用户并行信道接入（SU-PCA） UL）或组合的DL和UL。 SU-PCA和MU-PCA可以支持不相等的调制和编码方案（MCS）和不相等的发送功率。介质访问控制（MAC）层，物理层（PHY）以及混合和PHY层方法和程序可以使用具有对称带宽的发送和/或接收来支持UL，DL和组合的UL和DL SU-PCA和MU-PCA。通过使用具有不对称带宽的发送/接收的下行链路，上行链路和组合上行链路和下行链路的MAC和PHY层设计和过程也可以支持MU-PCA和/或SU-PCA。

6. 发明申请

WO2012177993A1 METHOD AND APPARATUS FOR RECEIVING A PREAMBLE IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：用于在无线通信系统中接收前缀的方法和装置
公开(公告)号：WO2012177993A1
公开(公告)日：2012-12-27
申请号：PCT/US2012/043725
申请日：2012-06-22
申请人： INTERDIGITAL PATENT HOLDINGS, INC. , GHOSH, Monisha , SHAH, Nirav B. , GRANDHI, Sudheer A. , MURIAS, Ronald G. , ZHANG, Guodong , WANG, Xiaofei , LOU, Hanqing , OLESEN, Robert L.
发明人： GHOSH, Monisha , SHAH, Nirav B. , GRANDHI, Sudheer A. , MURIAS, Ronald G. , ZHANG, Guodong , WANG, Xiaofei , LOU, Hanqing , OLESEN, Robert L.
IPC分类号： H04L5/00
CPC分类号： H04L5/0023 , H04L1/0025 , H04L1/0041 , H04L1/0059 , H04L1/0061 , H04L5/0048 , H04L5/0053 , H04L25/0226
摘要： Method and apparatus for transmission and reception of a Greenfield preamble are provided. In the method and apparatus, the Greenfield preamble may be a single user (SU) preamble or a multi user (MU) preamble. As an MU preamble, the Greenfield preamble includes a short training field (STF), a first long training field (LTF), a first signal (SIG) field, at least one additional LTF, and a second SIG field. Additionally, the Greenfield preamble may be utilized for efficient transmission and reception of control information to wireless devices, whereby the control information may be indicated using the STF, the first LTF, or the first or second SIG fields.
摘要翻译：提供了一种用于发送和接收绿田前置码的方法和装置。在该方法和装置中，格林菲尔德前导码可以是单用户（SU）前导码或多用户（MU）前导码）。作为MU前导码，绿田前置码包括短训练场（STF），第一长训练场（LTF），第一信号（SIG）场，至少一个附加的LTF和第二SIG场。此外，绿田前置码可用于向无线设备的控制信息的有效发送和接收，由此可以使用STF，第一LTF或第一或第二SIG字段来指示控制信息。

7. 发明申请

WO2017200842A2 METHOD AND APPARATUS FOR MODULATION OF MILLIMETER WAVES AND PREAMBLE DESIGN 审中-公开
标题翻译：用于调制毫米波和前置设计的方法和设备
公开(公告)号：WO2017200842A2
公开(公告)日：2017-11-23
申请号：PCT/US2017/032201
申请日：2017-05-11
申请人： INTERDIGITAL PATENT HOLDINGS, INC.
发明人： LOU, Hanqing , YANG, Rui , XI, Fengjun , SHAH, Nirav B.
IPC分类号： H04L5/00
摘要： Modulating millimeter waves may be embodied via a plurality of means. In at least one embodiment of the process disclosed herein, the process includes receiving, at a transmitter, a set of bits. The process also includes generating at least two complex-valued symbols based on the set of bits using a pipelined modulation at least in part by (i) mapping the set of bits to a first symbol using a first constellation mapping and (ii) mapping the set of bits to a second symbol using a second constellation mapping. The process also includes selecting a first data communication resource in a first single carrier channel for the first symbol and selecting a second data communication resource in a second single carrier channel for the second symbol. The process also includes transmitting, via the transmitter, the first and second symbols using the respective selected data communication resources.
摘要翻译：调制毫米波可以通过多个装置来实现。在这里公开的过程的至少一个实施例中，该过程包括在发射机处接收一组比特。该过程还包括至少部分地通过（i）使用第一星座映射将所述比特组映射到第一符号并且（ii）将所述至少两个复数值符号映射到使用第二星座映射将比特集合映射到第二符号。该过程还包括为第一码元选择第一单载波信道中的第一数据通信资源并且为第二码元选择第二单载波信道中的第二数据通信资源。该过程还包括使用各自选择的数据通信资源经由发射机发送第一和第二符号。

8. 发明申请

WO2015038930A1 CLEAR CHANNEL ASSESSMENT (CCA) THRESHOLD ADAPTATION METHOD 审中-公开
标题翻译：清晰的渠道评估（CCA）阈值适应方法
公开(公告)号：WO2015038930A1
公开(公告)日：2015-03-19
申请号：PCT/US2014/055445
申请日：2014-09-12
申请人： INTERDIGITAL PATENT HOLDINGS, INC.
发明人： OTERI, Oghenekome , XIA, Pengfei , WANG, Xiaofei , LOU, Hanqing , GHOSH, Monisha , OLESEN, Robert L. , SHAH, Nirav B. , LA SITA, Frank
IPC分类号： H04W74/08 , H04W84/12 , H04W52/00
CPC分类号： H04W52/243 , H04W52/12 , H04W74/0808 , H04W84/12
摘要： Methods and apparatuses are described herein for adapting clear channel assessment (CCA) thresholds with or without Transmit Power Control (TPC) are disclosed. An IEEE 802.11 station (STA) may dynamically calculate a STA specific transmit power control (TPC) value and a STA specific clear channel assessment (CCA) value based on a target TPC parameter and a target CCA parameter. The target TPC parameter and the target CCA parameter may be received from an IEEE 802.11 cluster head configured to control TPC and CCA for a plurality of STAs associated with the BSS. The target TPC parameter and the target CCA parameter also may be related. The STA may then determine whether a carrier sense multiple access (CSMA) wireless medium of a wireless local area network (WLAN) basic service set (BSS) is occupied or idle based on the STA specific CCA value.
摘要翻译：本文描述了用于适应具有或不具有发射功率控制（TPC）的清晰信道评估（CCA）阈值的方法和装置。 IEEE 802.11站（STA）可以基于目标TPC参数和目标CCA参数动态地计算STA特定发射功率控制（TPC）值和STA特定清除信道评估（CCA）值。目标TPC参数和目标CCA参数可以从被配置为对与BSS相关联的多个STA进行TPC和CCA的控制的IEEE 802.11集群头接收。目标TPC参数和目标CCA参数也可能相关。 STA然后可以基于STA特定CCA值来确定无线局域网（WLAN）基本服务集（BSS）的载波侦听多路访问（CSMA）无线介质是占用还是空闲。

9. 发明申请

WO2015006637A1 METHODS AND PROCEDURES FOR SCHEDULING TO SECTOR-EDGE AND NON-SECTOR-EDGE STATION GROUPS 审中-公开
标题翻译：调度到边坡边缘和非边缘台站组的方法和程序
公开(公告)号：WO2015006637A1
公开(公告)日：2015-01-15
申请号：PCT/US2014/046271
申请日：2014-07-11
申请人： INTERDIGITAL PATENT HOLDINGS, INC.
发明人： OTERI, Oghenekome , LOU, Hanqing , XIA, Pengfei , SHAH, Nirav B. , GHOSH, Monisha , OLESEN, Robert L.
IPC分类号： H04W74/04 , H04W16/30 , H04W52/28 , H04W72/12 , H04W84/12
CPC分类号： H04W72/1284 , H04L5/0032 , H04W16/28 , H04W16/30 , H04W52/283 , H04W72/048 , H04W72/1278 , H04W74/04 , H04W84/12
摘要： Methods and apparatus are presented for WiFi sectorization and beamforming. In one embodiment, an access point (AP) may send a Request to Send (RTS) to a first station (STA), receive a Sectorized Coordinated Beam (CB/S)-Clear to Send (CTS) from the first STA, and receive a CBS-CTS from a second STA. The AP may then send a Null Data Packet (NDP) Announcement (NDPA), followed by a NDP. The NDP may be sent using sub-sector beamforming. The AP may receive feedback from the first STA, and may create a targeted beam to transmit data to the first STA. The AP may determine sector order and timing based on the feedback. The AP may also identify whether the STA is a sector-edge STA or non-sector-edge (or sector center) STA. The AP may allow the STA to transmit based on whether the STA is assigned to the sector-edge or non-sector edge group.
摘要翻译：提出了用于WiFi扇区化和波束成形的方法和装置。在一个实施例中，接入点（AP）可以向第一站（STA）发送请求发送（RTS），从第一STA接收分段化协调波束（CB / S）清除发送（CTS），以及从第二个STA接收CBS-CTS。然后AP可以发送Null数据分组（NDP）公告（NDPA），其次是NDP。可以使用子扇区波束成形来发送NDP。 AP可以从第一STA接收反馈，并且可以创建目标波束以将数据发送到第一STA。 AP可以基于反馈确定扇区顺序和时序。 AP还可以识别STA是扇区边缘STA还是非扇区边缘（或扇区中心）STA。 AP可以允许STA基于STA是否被分配给扇区边缘组还是非扇区边缘组来发送。

10. 发明申请

WO2015006537A3 METHOD AND APPARATUS FOR SUPPORTING SECTORIZATION COORDINATION 审中-公开
公开(公告)号：WO2015006537A3
公开(公告)日：2015-01-15
申请号：PCT/US2014/046115
申请日：2014-07-10
申请人： INTERDIGITAL PATENT HOLDINGS, INC.
发明人： XIA, Pengfei , OTERI, Oghenekome , LOU, Hanqing , SHAH, Nirav B. , GHOSH, Monisha , OLESEN, Robert L.
IPC分类号： H04B7/06 , H04W16/28 , H04B7/04 , H04W74/08
摘要： A method and apparatus may be used to support coordinated and cooperative sectorized transmissions. Power control and clear channel assessment for sectorized transmissions may be used, along with sectorized beacon and associated procedures. Transmissions in a network may be protected by a first access point (AP) sending an omni-directional transmission and a beamformed or sectorized transmission to a station (STA), an overlapping basic service set (OBSS) confirming a spatially orthogonal (SO) condition based on the omni-directional transmission, and a second AP monitoring the omni-directional transmission and confirming the SO condition. The STA may be configured to receive a request-to-send (RTS) frame indicating data is available for transmission, and transmit a cooperative sectorized (CS) clear-to-send (CTS) frame indicating an ability for multiple AP reception.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式