公开(公告)号：US09954663B2

公开(公告)日：2018-04-24

申请号：US14699842

申请日：2015-04-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Osama Aboul-Magd ,  Jung Hoon Suh ,  Kwok Shum Au ,  Sheng Sun

IPC: H04B7/212 ,  H04L5/00 ,  H04W72/02 ,  H04W72/12 ,  H04W84/12 ,  H04W72/04

CPC classification number: H04L5/005 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0091 ,  H04W72/02 ,  H04W72/0446 ,  H04W72/121 ,  H04W84/12

Abstract: A method for operating a communications device adapted for orthogonal frequency division multiple access (OFDMA) wireless local area network (WLAN) communications includes generating an OFDMA preamble comprising an OFDMA signal (SIG) field including an indication of an allocation of an OFDMA resource to a station, and transmitting the OFDMA preamble in a frame.

公开(公告)号：US20180007579A1

公开(公告)日：2018-01-04

申请号：US15702345

申请日：2017-09-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Osama Aboul-Magd ,  Kwok Shum Au ,  Jung Hoon Suh

IPC: H04W28/02 ,  H04H20/38 ,  H04L29/08 ,  H04L5/00 ,  H04L29/06 ,  H04W88/08 ,  H04W84/12 ,  H04W88/02

CPC classification number: H04L5/0058 ,  H04H20/38 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0041 ,  H04L5/0089 ,  H04L5/0098 ,  H04L29/08018 ,  H04L69/22 ,  H04W28/0263 ,  H04W84/12 ,  H04W88/02 ,  H04W88/08

Abstract: Embodiments are provided herein for improving carrier aggregation for wireless networks. A plurality of bandwidth channels are assigned to a basic service set (BSS) for transmissions. Specifically, the bandwidth channels are divided into multiple channel segments corresponding to multiple primary or alternate primary channels. A channel segment possibly further includes one or more additional secondary channels. The locations of the primary or alternate primary channels that correspond to the channel segments of the BSS are then broadcasted in the network. When a station or AP receives this BSS information, it searches for an available primary or alternate primary channel of the BSS to begin transmission. Upon detecting an available primary channel or alternate primary channel that is not used for another transmission, the station or AP transmits data on the channel segment corresponding to the detected primary or alternate primary channel.

公开(公告)号：US20170324598A1

公开(公告)日：2017-11-09

申请号：US15661474

申请日：2017-07-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jung Hoon Suh ,  Peiying Zhu ,  Osama Aboul-Magd ,  Kwok Shum Au ,  Sheng Sun

IPC: H04L27/26 ,  H04L27/00

CPC classification number: H04L27/2602 ,  H04L27/0012 ,  H04L27/2604 ,  H04L27/2613 ,  H04L27/2628

Abstract: System and method embodiments are provided for high efficiency wireless communications. In an embodiment, a method in a network component for transmitting a frame of two different fast Fourier transform (FFT) sizes includes generating a frame, wherein the frame comprises orthogonal frequency-division multiplexing (OFDM) symbols in two different FFT sizes, wherein the frame comprises a first portion and a second portion, wherein the first portion comprises a first FFT size and the second portion comprises a second FFT size; and transmitting the frame during a single transmission opportunity.

公开(公告)号：US09729368B2

公开(公告)日：2017-08-08

申请号：US14538087

申请日：2014-11-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jung Hoon Suh ,  Peiying Zhu ,  Osama Aboul-Magd ,  Kwok Shum Au ,  Sheng Sun

IPC: H04L27/26 ,  H04L27/00

CPC classification number: H04L27/2602 ,  H04L27/0012 ,  H04L27/2604 ,  H04L27/2613 ,  H04L27/2628

Abstract: System and method embodiments are provided for high efficiency wireless communications. In an embodiment, a method in a network component for transmitting a frame of two different fast Fourier transform (FFT) sizes includes generating a frame, wherein the frame comprises orthogonal frequency-division multiplexing (OFDM) symbols in two different FFT sizes, wherein the frame comprises a first portion and a second portion, wherein the first portion comprises a first FFT size and the second portion comprises a second FFT size; and transmitting the frame during a single transmission opportunity.

公开(公告)号：US09628999B2

公开(公告)日：2017-04-18

申请号：US14340098

申请日：2014-07-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Osama Aboul-Magd ,  Kwok Shum Au ,  Jung Hoon Suh

IPC: H04W4/00 ,  H04W16/28 ,  H04W84/12 ,  H04W88/08 ,  H04W92/20

CPC classification number: H04W16/28 ,  H04B7/024 ,  H04W8/26 ,  H04W72/046 ,  H04W74/006 ,  H04W84/12 ,  H04W88/08 ,  H04W92/20

Abstract: Embodiments are provided for enabling a beamforming mechanism in WLAN OBSSs. In an embodiment, a first AP of the OBSSs decides to participate in coordinated beamforming for the OBSSs. The OBSSs comprise a plurality of APs and a plurality of STAs associated with the APs. The AP thus transmits, periodically, a coordinated beamforming (CB) announcement message indicating an ID of the first AP and an ID of each STA associated with the first AP. When a second AP of the OBSSs receives the message from the first AP, the second AP maintains the ID of the first AP and the ID of each STA associated with the first AP in an entry of a CB table. When the second AP stops receiving the message, the second AP removes, from the CB table, the entry of the IDs of the first AP and its associated STAs.

公开(公告)号：US09226302B2

公开(公告)日：2015-12-29

申请号：US13938058

申请日：2013-07-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jung Hoon Suh ,  Osama Aboul-Magd ,  Kwok Shum Au ,  Sheng Sun

IPC: H04W72/08 ,  H04W72/12

CPC classification number: H04W72/082 ,  H04B7/0626 ,  H04L1/0009 ,  H04L25/0228 ,  H04L27/2646 ,  H04W72/1226 ,  H04W72/1231 ,  H04W84/12

Abstract: System and method embodiments are provided for interference alignment in a wireless local area network (LAN) with an overlapping basic service set (OBSS). In an embodiment, a method includes instructing a first access point (AP) in the wireless LAN to broadcast a null data packet (NDP) sounding packet to a plurality of stations when no other AP is broadcasting, wherein the NDP sounding packet comprises a plurality of long training field (LTFs), and wherein a total number of LTFs is equal to a total number of transmission streams, receiving channel beamforming (BF) information and a signal plus interference to noise ratio (SINR) from each of the stations, wherein each of the stations computes the channel BF information and the SINR from sounding packets received from each of the APs in the wireless LAN, and determining a transmission schedule according to the SINRs and the channel BF information.

Abstract translation: 提供了系统和方法实施例用于具有重叠基本服务集（OBSS）的无线局域网（LAN）中的干扰对准。 在一个实施例中，一种方法包括指示无线LAN中的第一接入点（AP）在没有其他AP广播时向多个站广播空值数据分组（NDP）探测分组，其中所述NDP探测分组包括多个 并且其中LTF的总数等于传输流的总数，接收来自每个站的信道波束成形（BF）信息和信号加干扰噪声比（SINR），其中， 每个站从无线LAN中的每个AP接收的探测分组中计算信道BF信息和SINR，并根据SINR和信道BF信息确定传输调度。