公开(公告)号：US10321484B2

公开(公告)日：2019-06-11

申请号：US14777151

申请日：2014-03-13

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Hanqing Lou ,  Monisha Ghosh ,  Xiaofei Wang ,  Robert L. Olesen

IPC: H04B7/00 ,  H04W74/08 ,  H04B7/06 ,  H04W72/12 ,  H04W84/12 ,  H04W88/06 ,  H04W88/08

Abstract: Systems, methods, and instrumentalities are provided to implement transmission scheduling. A multiband device may send a request via a first frequency band. The request may include a multiband Request to Send (MRTS) transmission. The request may be associated with a second frequency band and/or a beamforming training schedule. The first frequency band may be associated with a quasi-omni transmission and the second frequency band may be associated with a directional transmission. The first frequency band may be a 5 GHz band and the second frequency band may be a 60 GHz band. The multiband device may receive a multiband Clear to Send (MCTS) transmission via the first frequency band confirming the request. The multiband device may be configured to send a beamforming signal in accordance with the request, for example, via the second frequency band. The beamforming signal may be sent in accordance with a beamforming training schedule.

公开(公告)号：US10257868B2

公开(公告)日：2019-04-09

申请号：US15948902

申请日：2018-04-09

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Lei Wang ,  Yousif Targali ,  Sudheer A. Grandhi ,  Xiaofei Wang ,  Guodong Zhang

IPC: H04L9/08 ,  H04L12/06 ,  H04L29/06 ,  H04W12/04 ,  H04W12/06 ,  H04W48/08 ,  H04W76/10 ,  H04W76/11 ,  H04W84/12 ,  H04W88/08

Abstract: A power saving method performed by a STA may comprise receiving, from an AP, a first beacon comprising a CCC value. The CCC value may be an integer value that represents a configuration instance of the AP. The STA may return from a power saving mode upon receiving the first beacon and receive a second beacon from the AP. The second beacon may be a primary beacon of the AP. The first beacon may comprise an SSID of the AP. The STA may perform an association procedure with the AP upon receiving the first beacon.

公开(公告)号：US20180084566A1

公开(公告)日：2018-03-22

申请号：US15826818

申请日：2017-11-30

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Xiaofei Wang ,  Hanqing Lou ,  Monisha Ghosh ,  Nirav B. Shah ,  Guodong Zhang ,  Ronald Murias

IPC: H04W72/12 ,  H04W72/04 ,  H04W74/00 ,  H04W74/08

CPC classification number: 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

Abstract: Methods and apparatuses are related to multi-user parallel channel access (MU-PCA). For example, a wireless transmit/receive unit (WTRU) is provided that is one of a plurality of WTRUs operable to simultaneously communicate via a plurality of channels managed by an access point (AP). The WTRU includes a receiver configured to receive, from the AP, over at least one channel of the plurality of channels, a group poll (G-Poll) message that includes a resource allocation that indicates at least one allocated channel of the plurality of channels for the WTRU; and a transmitter configured to transmit an uplink request message, to the AP in response to the G-Poll message, over the at least one allocated channel of the plurality of channels, the uplink request message corresponding to uplink data the WTRU has for transmission to the AP.

公开(公告)号：US09860908B2

公开(公告)日：2018-01-02

申请号：US15581261

申请日：2017-04-28

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Xiaofei Wang ,  Hanqing Lou ,  Monisha Ghosh ,  Nirav B Shah ,  Guodong Zhang ,  Ronald Murias

IPC: H04W72/12 ,  H04W74/00 ,  H04W74/08 ,  H04L1/18 ,  H04W72/04 ,  H04W84/12

CPC classification number: 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

Abstract: Methods and apparatuses are related to multi-user parallel channel access (MU-PCA). For example, a wireless transmit/receive unit (WTRU) is provided that is one of a plurality of WTRUs operable to simultaneously communicate via a plurality of channels managed by an access point (AP). The WTRU includes a receiver configured to receive, from the AP, over at least one channel of the plurality of channels, a group request-to-send (G-RTS) message that includes a resource allocation that indicates at least one assigned channel for the WTRU; a transmitter configured to transmit a clear-to-send (CTS) message, to the AP, over the at least one assigned channel of the plurality of channels; and the receiver further configured to receive a data message, from the AP, over at least one channel of the plurality of channels.

公开(公告)号：US20170111820A1

公开(公告)日：2017-04-20

申请号：US15394205

申请日：2016-12-29

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Xiaofei Wang ,  Guodong Zhang

IPC: H04W28/06 ,  H04L12/741 ,  H04L29/06 ,  H04W72/04

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

Abstract: A medium access control (MAC) frame may have a MAC header that includes two address fields and a MAC frame version indicator. The MAC header may also include control information that indicates a presence of a third address field in the MAC header. A time interval for transmission of the MAC frame may be determined by multiplying a duration value in a first message field by a multiplier value in a second message field.

公开(公告)号：US09608789B2

公开(公告)日：2017-03-28

申请号：US13890833

申请日：2013-05-09

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

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

IPC: H04L5/00 ,  H04L1/16 ,  H04L1/18 ,  H04L1/00

CPC classification number: H04L5/0055 ,  H04L1/1607 ,  H04L1/1671 ,  H04L1/1854 ,  H04L1/1864 ,  H04L2001/0093

Abstract: A method and apparatus for transmitting acknowledgements in response to data packets in wireless communication are disclosed. A recipient may receive a plurality of data packets from a plurality of stations and transmit acknowledgements for the data packets to the originating stations in a single transmission. The acknowledgements may be transmitted using multi-user multiple-input multiple-output (MU-MIMO). Alternatively, the acknowledgements may be aggregated and transmitted in the single transmission. A short acknowledgement (ACK) frame may be sent in response to a received frame. The short ACK frame may include an ACK sequence corresponding to a sequence identity (ID) included in the received frame. The short ACK frame may include a short training field (STF) and the ACK sequence. The short ACK frame may be transmitted with a short ACK indication. The short ACK frame may be sent in response to an indication included in the received frame.

公开(公告)号：US20160295610A1

公开(公告)日：2016-10-06

申请号：US15180231

申请日：2016-06-13

Applicant: InterDigital Patent Holdings, Inc.

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

IPC: H04W74/04 ,  H04W28/26 ,  H04W76/02 ,  H04W28/06

CPC classification number: H04W74/04 ,  H04W28/06 ,  H04W28/26 ,  H04W74/004 ,  H04W74/006 ,  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, a wireless transmit/receive unit (WTRU) may obtain a TXOP for a 2 MHz bandwidth mode frame transmission with another device capable of operating in a 2 MHz bandwidth mode and a 1 MHz bandwidth mode. The WTRU may conduct a request-to-send (RTS)/clear-to-send (CTS) frame exchange in the second bandwidth mode, and truncate the TXOP by transmitting a contention free (CF)-End frame in the first and second bandwidth modes. In another scenario, an AP may obtain a TXOP for a 2 MHz bandwidth mode frame transmission with a WTRU capable of both 2 MHz and 1 MHz bandwidth modes.

Abstract translation: 可以使用增强的协议和设备来减轻宽带传输中频谱效率的损失。 协议可以实现宽带传输机会（TXOP）截断，其中涉及通过宽带通信的一个或多个信道被释放。 在一种情况下，无线发射/接收单元（WTRU）可以与能够以2MHz带宽模式和1MHz带宽模式操作的另一设备获得用于2MHz带宽模式帧传输的TXOP。 WTRU可以在第二带宽模式中进行请求发送（RTS）/清除发送（CTS）帧交换，并且通过在第一和第二帧中发送无竞争（CF）-End帧来截断TXOP 带宽模式。 在另一种情况下，AP可以获得具有能够兼容2MHz和1MHz带宽模式的WTRU的2MHz带宽模式帧传输的TXOP。

公开(公告)号：US20160135199A1

公开(公告)日：2016-05-12

申请号：US14896012

申请日：2014-06-06

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Xiaofei Wang ,  Guodong Zhang

IPC: H04W72/08

CPC classification number: H04W72/085 ,  H04W74/0816 ,  H04W84/12

Abstract: Systems, methods, and instrumentalities are provided to implement data transmission, comprising: receiving a first signal from an access point (AP) indicating that a primary channel is associated with a first frequency band associated with a first period of time; determining by an IEEE 802.11 station (STA) that a channel condition associated with a secondary channel is better than a channel condition associated with the primary channel; reserving the primary channel associated with the first frequency, wherein the reserving of the primary channel comprises occupying or reserving the primary channel during the first period of time; and sending data over the secondary channel while the primary channel is occupied or reserved.

Abstract translation: 提供系统，方法和工具来实现数据传输，包括：从接入点（AP）接收指示主信道与第一时段相关联的第一频带相关联的第一信号; 由IEEE 802.11站（STA）确定与辅助信道相关联的信道条件优于与主信道相关联的信道条件; 保留与第一频率相关联的主信道，其中主信道的预留包括在第一时段期间占用或保留主信道; 并且在主信道被占用或保留时通过辅助信道发送数据。

公开(公告)号：US20160081130A1

公开(公告)日：2016-03-17

申请号：US14942127

申请日：2015-11-16

Applicant: InterDigital Patent Holdings, Inc.

Inventor： Lei Wang ,  Yousif Targali ,  Sudheer A. Grandhi ,  Xiaofei Wang ,  Guodong Zhang

IPC: H04W76/02

CPC classification number: H04W76/11 ,  H04L9/0844 ,  H04L12/06 ,  H04L63/0428 ,  H04W12/04 ,  H04W12/06 ,  H04W48/08 ,  H04W76/10 ,  H04W84/12 ,  H04W88/08

Abstract: A methods and apparatus may be used for accelerated link setup. A method may include a station (STA) acquiring information about an access point of an Institute of Electrical and Electronics Engineers (IEEE) 802.11 network in advance through a previously connected IEEE 802.11 interface and/or an interface other than the IEEE 802.11 network. The STA may use the acquired information during a link setup procedure between the STA and the access point. The information may include a suggestion for a specific procedure to complete the link setup procedure between the STA and the access point.

公开(公告)号：US20160044711A1

公开(公告)日：2016-02-11

申请号：US14777151

申请日：2014-03-13

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： Hanqing Lou ,  Monisha Ghosh ,  Xiaofei Wang ,  Robert L. Olesen

IPC: H04W74/08 ,  H04W72/12 ,  H04B7/06

CPC classification number: H04W74/0816 ,  H04B7/0617 ,  H04W72/1284 ,  H04W84/12 ,  H04W88/06 ,  H04W88/08

Abstract: Systems, methods, and instrumentalities are provided to implement transmission scheduling. A multiband device may send a request via a first frequency band. The request may include a multiband Request to Send (MRTS) transmission. The request may be associated with a second frequency band and/or a beamforming training schedule. The first frequency band may be associated with a quasi-omni transmission and the second frequency band may be associated with a directional transmission. The first frequency band may be a 5 GHz band and the second frequency band may be a 60 GHz band. The multiband device may receive a multiband Clear to Send (MCTS) transmission via the first frequency band confirming the request. The multiband device may be configured to send a beamforming signal in accordance with the request, for example, via the second frequency band. The beamforming signal may be sent in accordance with a beamforming training schedule.

Abstract translation: 提供系统，方法和手段来实现传输调度。 多频带设备可以经由第一频带发送请求。 该请求可以包括多频带请求发送（MRTS）传输。 该请求可以与第二频带和/或波束成形训练计划相关联。 第一频带可以与准全向传输相关联，并且第二频带可以与定向传输相关联。 第一频带可以是5GHz频带，第二频带可以是60GHz频带。 多频带设备可经由确认该请求的第一频带接收多频段清除发送（MCTS）传输。 多频带设备可以被配置为例如经由第二频带根据请求发送波束成形信号。 波束成形信号可以根据波束成形训练计划发送。