公开(公告)号：US20160073429A1

公开(公告)日：2016-03-10

申请号：US14888274

申请日：2014-05-02

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Oghenekome Oteri ,  Hanqing Lou ,  Monisha Ghosh ,  Robert L. Olesen ,  Frank La Sita ,  Xiaofei Wang ,  Pengfei Xia ,  Nirav B. Shah

IPC: H04W74/08 ,  H04W24/02 ,  H04W4/08

CPC classification number: H04W74/0816 ,  H04W4/08 ,  H04W24/02 ,  H04W64/00 ,  H04W84/12

Abstract: Systems, methods, and instrumentalities are described to implement an interference management method in a WLAN. An access point (AP) or an inter-BSS coordinator (IBC) may identify a station (STA) associated with a first basic service set (BSS) as an edge STA or a non-edge STA. The AP or the IBC may group the edge STA into an edge group and a non-edge STA into a non-edge group. The AP or the IBC may receive information associated with a second BSS. The AP or the IBC may coordinate access of the edge group and/or the non-edge group. The access may be coordinated to minimize interference of the edge STA. The access may be based at least on the received information associated with the second BSS. The AP or the IBC may adjust transmit power of a plurality of STAs identified as edge group STAs and non-edge group STAs.

Abstract translation: 描述了系统，方法和工具，以实现WLAN中的干扰管理方法。 接入点（AP）或BSS间协调器（IBC）可以将与第一基本服务集（BSS）相关联的站（STA）标识为边缘STA或非边缘STA。 AP或IBC可以将边缘STA组合成边缘组，将非边缘STA组合成非边缘组。 AP或IBC可以接收与第二BSS相关联的信息。 AP或IBC可以协调边缘组和/或非边缘组的访问。 可以协调访问以最小化边缘STA的干扰。 访问可以至少基于与第二BSS相关联的所接收的信息。 AP或IBC可以调整被识别为边缘组STA和非边缘组STA的多个STA的发射功率。

公开(公告)号：US20140071873A1

公开(公告)日：2014-03-13

申请号：US14025023

申请日：2013-09-12

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Xiaofei Wang ,  Guodong Zhang

IPC: H04W72/04

CPC classification number: H04W52/0235 ,  H04L1/0083 ,  H04L1/1607 ,  H04W72/0446 ,  H04W72/1284 ,  H04W74/08 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/1222 ,  Y02D70/1226 ,  Y02D70/1242 ,  Y02D70/1244 ,  Y02D70/1246 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/23

Abstract: A method, a wireless transmit/receive unit (WTRU) and a base station for transferring small packets are described. The WTRU generates a packet that has one or more of a medium access control (MAC) or a physical layer convergence protocol (PLCP) header, the one or more of the MAC or the PLCP header including a field. On a condition that the WTRU has data buffered for transmission, the WTRU includes in the field information that indicates a time or a transmission opportunity (TXOP) needed to transmit at least one packet of data that the WTRU has buffered for transmission. The WTRU transmits the packet to another WTRU in the wireless network. The WTRU receives another packet from the other WTRU with a granted TXO) based on the time needed to transmit the at least one packet of the data that the WTRU has buffered for transmission.

Abstract translation: 描述了一种方法，无线发射/接收单元（WTRU）和用于传送小分组的基站。 WTRU生成具有介质访问控制（MAC）或物理层汇聚协议（PLCP）报头中的一个或多个的分组，MAC或PLCP头中的一个或多个包括字段。 在WTRU具有缓冲用于传输的数据的条件下，WTRU在该字段中包括指示发送WTRU已经缓冲以进行传输的至少一个数据包所需的时间或传输机会（TXOP）的信息。 WTRU在无线网络中将分组传输到另一WTRU。 基于发送WTRU已经缓冲用于传输的数据的至少一个分组所需的时间，WTRU从具有授权TXO的另一个WTRU接收另一个分组）。

公开(公告)号：US20130301551A1

公开(公告)日：2013-11-14

申请号：US13838915

申请日：2013-03-15

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Monisha Ghosh ,  Xiaofei Wang ,  Hanqing Lou ,  Nirav B. Shah ,  Guodong Zhang ,  Frank La Sita

IPC: H04W72/04

CPC classification number: 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

Abstract: 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.

Abstract translation: 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到的波束形成器能力元素来确定用于多个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。

公开(公告)号：US20130294431A1

公开(公告)日：2013-11-07

申请号：US13875721

申请日：2013-05-02

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Xiaofei Wang ,  Guodong Zhang

IPC: H04W28/06

CPC classification number: H04W28/06 ,  H04L45/74 ,  H04L69/22 ,  H04W8/26 ,  H04W72/04

Abstract: A medium access control (MAC) frame having a short MAC header with at least two address fields and an indicator field that indicates it is a short MAC header is provided. The indicator field may indicate a presence of a third or fourth address field in the short MAC header. The indication may be a one, two, or any number of bits indicator.

Abstract translation: 提供具有具有至少两个地址字段的短MAC报头的媒体接入控制（MAC）帧和指示它是一个短MAC报头的指示符字段。 指示符字段可以指示在短MAC报头中存在第三或第四地址字段。 指示可以是一个，两个或任何数量的位指示符。

公开(公告)号：US20130294354A1

公开(公告)日：2013-11-07

申请号：US13789316

申请日：2013-03-07

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Guodong Zhang ,  Lei Wang ,  Xiaofei Wang ,  Joseph S. Levy ,  Robert L. Olesen

IPC: H04W72/04

CPC classification number: H04W48/16 ,  H04L61/6022 ,  H04W12/06 ,  H04W48/10 ,  H04W48/14 ,  H04W72/04 ,  H04W72/0446 ,  H04W84/12 ,  H04W88/08

Abstract: A method for active scanning in a wireless network may include two transmitters. In such a method, the following steps may take place: detecting a first probe request having a scanning target originating from a first transmitter; desiring to send a probe request to the scanning target from a second transmitter; and canceling the second probe request on a condition that the second transmitter detects the first probe request.

公开(公告)号：US20130230035A1

公开(公告)日：2013-09-05

申请号：US13782709

申请日：2013-03-01

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Sudheer A. Grandhi ,  Monisha Ghosh ,  Hanqing Lou ,  Lei Wang ,  Xiaofei Wang ,  Guodong Zhang

IPC: H04W48/20

CPC classification number: H04W48/20 ,  H04B7/0456 ,  H04B7/0617 ,  H04W48/12 ,  H04W48/16

Abstract: A method for beacon information provisioning, transmissions and protocol enhancements includes defining multiple level beacons based on the attributes of beacon information fields/elements. A short beacon may be used in addition to a primary beacon in space-time block code (STBC) modes, non-STBC modes and in multiple bandwidth modes. The short beacons may also be used for Fast Initial Link Setup (FILS) and to extend system coverage range. Beacon transmissions may use adaptive modulation and coding set/scheme (MCS).

Abstract translation: 用于信标信息提供，传输和协议增强的方法包括基于信标信息字段/元素的属性定义多级信标。 除了空时块（STBC）模式，非STBC模式和多个带宽模式中的主信标之外，还可以使用短信标。 短信标也可用于快速初始链路设置（FILS），并扩展系统覆盖范围。 信标传输可以使用自适应调制和编码集/方案（MCS）。

公开(公告)号：US12302382B2

公开(公告)日：2025-05-13

申请号：US18479602

申请日：2023-10-02

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Bhaskar M. Anepu ,  Sudheer A. Grandhi ,  Xiaofei Wang

IPC: H04W74/04 ,  H04W28/06 ,  H04W28/26 ,  H04W74/00 ,  H04W74/06 ,  H04W74/0808 ,  H04W74/0816 ,  H04W76/11 ,  H04W88/08

Abstract: Enhanced protocols and devices may be used to alleviate loss of spectrum efficiency in wideband transmission. The protocols may implement a wideband transmission opportunity (TXOP) truncation where one or more of the channels involved in communication over the wideband are released. In one scenario, an access point (AP) may receive, from a wireless transmit receive unit (WTRU), a first CF-End frame that includes a duration field and a basic service set identifier (BSSID) field that includes an individual/group bit. On a condition that the individual/group bit of the BSSID field has a value of one (1), the AP may determine that a scrambling sequence of the first CF-End frame indicates a bandwidth associated with a transmit opportunity (TXOP) being truncated by the WTRU. The AP may then transmit a second CF-End frame at the bandwidth indicated by the scrambling sequence of the first CF-End frame.

公开(公告)号：US12237885B2

公开(公告)日：2025-02-25

申请号：US18236238

申请日：2023-08-21

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Hanqing Lou ,  Alphan Sahin ,  Xiaofei Wang ,  Rui Yang ,  Oghenekome Oteri ,  Li-Hsiang Sun

IPC: H04B7/0452 ,  H04B7/06 ,  H04W84/12

Abstract: An AP/PCP may perform user selection/pairing/grouping based on a measurement of an analog transmission (e.g., signal to noise ratio (SNR) or signal to interference plus noise ratio (SINR)). The SNRs may be used, for example by the station, to determine best beams and/or beam pairs and/or worst beams and/or beam pairs. A station may feed back the best few beams and/or beam pairs for a Tx and Rx virtual antenna pair. A station may feed back the worst few beams for the Tx and Rx virtual antenna pair. The AP/PCP may receive the indication(s) and/or use the indication(s) to group the stations.

公开(公告)号：US12225494B2

公开(公告)日：2025-02-11

申请号：US18211509

申请日：2023-06-19

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Oghenekome Oteri ,  Alphan Sahin ,  Xiaofei Wang ,  Hanqing Lou ,  Li-Hsiang Sun ,  Rui Yang ,  Frank La Sita

IPC: H04W4/00 ,  H04W8/00 ,  H04W60/04 ,  H04W84/12

Abstract: Methods and apparatuses are described herein for multiple AP coordination in wireless local area networks (WLANs). For example, a station (STA) may receive, from a first access points (APs), a probe response frame that includes one or more indicators indicating multiple AP operation capabilities of the first AP and a second AP. The STA may transmit, to at least one of the first AP or the second AP, a multiple AP association request frame that enables the first AP to be associated with the second AP for a multiple AP operation. The STA may receive, from the first AP, a first multiple AP association response frame indicating acceptance or rejection of the multiple AP operation with the first AP. The STA may receive, from the second AP, a second multiple AP association response frame indicating acceptance or rejection of the multiple AP operation with the second AP.

公开(公告)号：US20250048429A1

公开(公告)日：2025-02-06

申请号：US18921420

申请日：2024-10-21

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Hanqing Lou ,  Xiaofei Wang ,  Oghenekome Oteri ,  Robert L. Olesen

IPC: H04W74/0808 ,  H04W84/12

Abstract: A STA may comprise a receiver configured to receive, from an AP, a first polling frame addressed to a broadcast address and sent to a plurality of STAs. The first polling frame may indicate a plurality of sub-channels. The STA may further comprise a transmitter configured to transmit, to the AP, a first PPDU indicating SNR information, on one or more sub-channels of the plurality of sub-channels, a SIFS after the first polling frame is received. The transmitter may be configured to transmit the first PPDU while a second PPDU is transmitted to the AP by another STA of the plurality of STAs, wherein the second PPDU is transmitted on one or more other sub-channels of the plurality of sub-channels.