公开(公告)号：US09769697B2

公开(公告)日：2017-09-19

申请号：US15066532

申请日：2016-03-10

Applicant: Huawei Technologies Co., Ltd.

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

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

CPC classification number: H04W28/0263 ,  H04H20/38 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0041 ,  H04L5/0058 ,  H04L5/0089 ,  H04L5/0098 ,  H04L29/08018 ,  H04L69/22 ,  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：US20170026853A1

公开(公告)日：2017-01-26

申请号：US15287471

申请日：2016-10-06

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04W16/28 ,  H04L5/00

CPC classification number: H04W16/28 ,  H04L5/0035 ,  H04L5/0053 ,  H04L5/0055 ,  H04L5/0057 ,  H04W84/12 ,  H04W88/08 ,  H04W92/20

Abstract: Embodiments are provided for enabling a coordinated beamforming (CB) mechanism in WLAN scenarios. In an embodiment, an AP sends a Feedback Request (FBR) frame to each one of the STAs in the OBSSs. The OBSSs comprise the STAs and a plurality of APs including the AP. The AP then receives a feedback frame from each STA of the STAs that participate in the CB transmission. The feedback frame includes channel state information (CSI) of the STA. The CSI enables the sending AP of performing CB on downlink. In an embodiment, the AP receives an initiate CB frame from a second AP initiating a CB transmission, and then sends an ACK frame to the second AP before sending the FBR frame to each one of the STAs. The AP starts the CB transmission with each one of the other APs that participate in the CB transmission.

Abstract translation: 提供了实现以在WLAN场景中实现协调的波束成形（CB）机制。 在一个实施例中，AP向OBSS中的每个STA发送反馈请求（FBR）帧。 OBSS包括STA和包括AP的多个AP。 AP然后从参与CB传输的STA的每个STA接收反馈帧。 反馈帧包括STA的信道状态信息（CSI）。 CSI可以在下行链路上发送执行CB的AP。 在一个实施例中，AP从发起CB传输的第二AP接收起始CB帧，然后在向每个STA发送FBR帧之前向第二AP发送ACK帧。 AP通过参与CB传输的其他AP中的每一个启动CB传输。

公开(公告)号：US09503911B2

公开(公告)日：2016-11-22

申请号：US14340175

申请日：2014-07-24

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04W4/00 ,  H04W16/28 ,  H04L5/00 ,  H04W84/12 ,  H04W88/08 ,  H04W92/20

CPC classification number: H04W16/28 ,  H04L5/0035 ,  H04L5/0053 ,  H04L5/0055 ,  H04L5/0057 ,  H04W84/12 ,  H04W88/08 ,  H04W92/20

Abstract: Embodiments are provided for enabling a coordinated beamforming (CB) mechanism in WLAN scenarios. In an embodiment, an AP sends a Feedback Request (FBR) frame to each one of the STAs in the OBSSs. The OBSSs comprise the STAs and a plurality of APs including the AP. The AP then receives a feedback frame from each STA of the STAs that participate in the CB transmission. The feedback frame includes channel state information (CSI) of the STA. The CSI enables the sending AP of performing CB on downlink. In an embodiment, the AP receives an initiate CB frame from a second AP initiating a CB transmission, and then sends an ACK frame to the second AP before sending the FBR frame to each one of the STAs. The AP starts the CB transmission with each one of the other APs that participate in the CB transmission.

Abstract translation: 提供了实现以在WLAN场景中实现协调的波束成形（CB）机制。 在一个实施例中，AP向OBSS中的每个STA发送反馈请求（FBR）帧。 OBSS包括STA和包括AP的多个AP。 AP然后从参与CB传输的STA的每个STA接收反馈帧。 反馈帧包括STA的信道状态信息（CSI）。 CSI可以在下行链路上发送执行CB的AP。 在一个实施例中，AP从发起CB传输的第二AP接收起始CB帧，然后在向每个STA发送FBR帧之前向第二AP发送ACK帧。 AP通过参与CB传输的其他AP中的每一个启动CB传输。

公开(公告)号：US20160192231A1

公开(公告)日：2016-06-30

申请号：US15066532

申请日：2016-03-10

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04W28/02 ,  H04L29/08 ,  H04L29/06 ,  H04H20/38

CPC classification number: H04W28/0263 ,  H04H20/38 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0041 ,  H04L5/0058 ,  H04L5/0089 ,  H04L5/0098 ,  H04L29/08018 ,  H04L69/22 ,  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.

Abstract translation: 本文提供了用于改善无线网络的载波聚合的实施例。 多个带宽信道被分配给用于传输的基本服务集（BSS）。 具体地，带宽信道被划分成对应于多个主要或替代主信道的多个信道段。 频道段可能还包括一个或多个附加次要信道。 然后在网络中广播与BSS的信道段对应的主要或替代主要信道的位置。 当站或AP接收到该BSS信息时，它搜索BSS的可用主要或备用主要信道以开始传输。 在检测到不用于另一传输的可用主信道或备用主信道时，站或AP在对应于检测到的主要或替代主信道的信道段上发送数据。

公开(公告)号：US20160088637A1

公开(公告)日：2016-03-24

申请号：US14961602

申请日：2015-12-07

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04W72/08 ,  H04L1/00 ,  H04L27/26 ,  H04B7/06 ,  H04L25/02

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。

公开(公告)号：US20160066313A1

公开(公告)日：2016-03-03

申请号：US14830488

申请日：2015-08-19

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04W72/04

CPC classification number: H04W48/08 ,  H04W48/12 ,  H04W48/14 ,  H04W88/08

Abstract: A method for operating a first access point of a first plurality of access points comprising access points participating in cumulative beacon operations includes generating a cumulative beacon including basic service set identifiers (BSSIDs) and service set identifiers (SSIDs) of each access point in the first plurality of access points, and sending the cumulative beacon.

Abstract translation: 一种用于操作包括参与累积信标操作的接入点的第一多个接入点的第一接入点的方法包括生成累积信标，其包括第一接入点中的每个接入点的基本服务集标识符（BSSID）和服务集标识符（SSID） 多个接入点，并发送累积信标。

公开(公告)号：US09258099B2

公开(公告)日：2016-02-09

申请号：US14064932

申请日：2013-10-28

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04L5/00 ,  H04J11/00 ,  H04W74/08 ,  H04B7/04 ,  H04B7/02

CPC classification number: H04L5/0057 ,  H04B7/024 ,  H04B7/0452 ,  H04J11/0053 ,  H04L5/0073 ,  H04W74/0808

Abstract: Embodiments are provided herein for implementing a user cooperation protocol for interference alignment (IA) in wireless local area network (WLAN) or a Wi-Fi hotspot. The embodiments allow collecting knowledge of the channels from user stations (STAs) and sending this information to the corresponding access points (APs) in the network. This information is then used by the APs to pre-code their signals such as to remove interfering signals to non-intended STAs. An AP transmits to the STAs a group identifier (GrpID) indicating an order of STAs for transmitting channel state information (CSI) and an AP index indicating an order of STA groups of the APs for transmitting the CSI. When a STA detects a CSI transmission from another STA preceding the STA in the order of transmission as indicated by the AP index and GrpID, the STA transmits its CSI.

Abstract translation: 本文提供了实现用于无线局域网（WLAN）或Wi-Fi热点中的干扰对准（IA）的用户协作协议。 这些实施例允许从用户站（STA）收集信道的知识并将该信息发送到网络中的相应接入点（AP）。 该信息随后被AP用于对其信号进行预编码，例如将干扰信号去除到非预期的STA。 AP向STA发送指示用于发送信道状态信息（CSI）的STA的订单的组标识符（GrpID）和指示用于发送CSI的AP的STA组的顺序的AP索引。 当STA按照AP索引和GrpID所指示的传输顺序从STA之间的另一STA检测到CSI传输时，STA发送其CSI。

公开(公告)号：US11632269B2

公开(公告)日：2023-04-18

申请号：US17113950

申请日：2020-12-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04L25/02 ,  H04W72/20 ,  H04L5/14 ,  H04W84/12

Abstract: A method at a network node that is configured to simultaneously transmit and receive wireless RF signals, comprising: transmitting, from the network node, a downlink message, the downlink message having a preamble that includes channel estimation information for estimating a self-interference channel; monitoring at the network node, during an initial duration while transmitting the downlink message, for the channel estimation information, and estimating a self-interference channel based on received portions of the channel estimation information; and using the estimated self-interference channel to cancel self-interference while receiving an uplink message and simultaneously transmitting a remainder of the downlink message.

公开(公告)号：US10945157B2

公开(公告)日：2021-03-09

申请号：US16196880

申请日：2018-11-20

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04W28/06 ,  H04B7/06 ,  H04L5/00 ,  H04L27/26 ,  H04L29/06 ,  H04W84/12

Abstract: A method for transmitting a frame includes generating an omni portion of the frame, the omni portion including a non-beamformed long training field and a signal field, the non-beamformed long training field including channel estimation information used to decode the signal field, the non-beamformed long training field configured to be transmitted through one of multiple antennas and multiple streams. The method also includes generating a multi-stream portion of the frame, the multi-stream portion including a data field and a multi-stream long training field, the multi-stream long training field including station-specific decoding information for station-specific data in the data field. The method further includes applying a beamforming indicator to the signal field of the omni portion, and transmitting the frame.

公开(公告)号：US20200287612A1

公开(公告)日：2020-09-10

申请号：US16296711

申请日：2019-03-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04B7/06 ,  H04L5/00 ,  H04B7/0452 ,  H04B7/0495

Abstract: In some examples, a first wireless device includes a network interface capable of communicating using 16 spatial streams; and at least one processor configured to allocate at least one spatial stream of the 16 spatial streams to a plurality of wireless devices, such that no wireless device of the plurality of wireless devices is allocated more than 4 spatial streams, and send a control information element indicating the allocation of the at least one spatial stream to the plurality of wireless devices.