公开(公告)号：US10425882B2

公开(公告)日：2019-09-24

申请号：US15421592

申请日：2017-02-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hongjia Su ,  Jun Zhu ,  Yingpei Lin

IPC: H04W48/16 ,  H04W4/70 ,  H04W8/00 ,  H04W88/08

Abstract: A device-to-device (D2S) station including a receiving module, configured to receive a first DDM that is broadcast by a neighboring station at a first preset power, where the first DDM includes user information of the neighboring station, an obtaining module, configured to obtain information about a link between the D2D station and the neighboring station according to the first DDM received by the receiving module, a time determining module, configured to determine, according to the information that is about the link between the D2D station and the neighboring station and obtained by the obtaining module, a time interval for broadcasting a second DDM, and a sending module, configured to broadcast, at a second preset power, the second DDM at the time interval determined by the time determining module.

公开(公告)号：US20190165978A1

公开(公告)日：2019-05-30

申请号：US16264926

申请日：2019-02-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jiayin Zhang ,  Jun Zhu ,  Yalin Liu ,  Yingpei Lin

IPC: H04L27/26 ,  H04L5/00 ,  H04L29/06

Abstract: A method includes generating a preamble for a protocol version of a wireless local area network, where the preamble includes a legacy signal (L-SIG) field and a high efficiency signal (HE-SIG) field that are arranged in order, the HE-SIG field includes a first orthogonal frequency division multiplexing OFDM symbol and a second OFDM symbol that are arranged in order, and an input information bit of the first OFDM symbol is the same as that of the second OFDM symbol, and sending the preamble to a receive end device, so that the receive end device restores the preamble, and when determining that input information bits obtained after restoring the first OFDM symbol and the second OFDM symbol are the same, determines that the preamble is the preamble of the protocol version.

公开(公告)号：US20190082466A1

公开(公告)日：2019-03-14

申请号：US16124876

申请日：2018-09-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yalin Liu ,  Jun Zhu ,  Jiayin Zhang ,  Tianyu Wu

IPC: H04W74/08 ,  H04W88/02 ,  H04W72/04 ,  H04W72/12

CPC classification number: H04W74/0816 ,  H04W72/0413 ,  H04W72/12 ,  H04W72/1263 ,  H04W88/02

Abstract: Embodiments provide a channel contention method and apparatus. The channel contention apparatus belongs to a basic service set (BSS). The BSS includes an access point (AP) and at least one first station (STA). Both the AP and the at least one first STA participate in channel contention. The apparatus is the AP or any first STA. The apparatus includes a sensing module configured to sense a channel. The apparatus also includes a contention module configured to contend for the channel. The AP centrally performs control and scheduling so that all of at least one network device in the BSS can transmit data using the channel.

公开(公告)号：US20180316467A1

公开(公告)日：2018-11-01

申请号：US16028884

申请日：2018-07-06

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Jun Zhu ,  Jiayin Zhang ,  Jiyong Pang ,  Le Liu

IPC: H04L5/00

CPC classification number: H04L5/0044 ,  H04L5/0048 ,  H04L5/0053 ,  H04L25/0204 ,  H04L27/2602 ,  H04W52/281 ,  H04W84/12

Abstract: Embodiments of the present invention provide an extended range SU mode PPDU transmission method and apparatus. The method comprises: generating an extended range SU mode PPDU, wherein a legacy preamble part in the extended range SU mode PPDU is transmitted by using a bandwidth of 20 MHz, a data part in the extended range SU mode PPDU is transmitted by using a narrowband, and a bandwidth in the narrowband transmission comprises at least one of the following parameters: a 26-tone RU, a 52-tone RU, a 106-tone RU, or a 242-tone RU; and sending the extended range SU mode PPDU. By applying the method and the apparatus in the embodiments of the present invention, transmission reliability of the data part is improved, performance of parts in the PPDU in an EXT SU mode is more balanced, and a coverage area of long-distance transmission is ensured.

公开(公告)号：US10104693B1

公开(公告)日：2018-10-16

申请号：US15610340

申请日：2017-05-31

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jiayin Zhang ,  Mohamed Adel Salem ,  Jun Zhu

IPC: H04B15/00 ,  H04W74/08 ,  H04W16/14 ,  H04W72/04 ,  H04B17/309 ,  H04W72/06

Abstract: A method for dynamically dividing or consolidating sub-bands in-between Clear Channel Assessment (CCA) status measurements upon detection of a CCA bandwidth adjustment condition is provided. The method includes determining at least a single CCA status for at least a single sub-band during a first period, and detecting a CCA bandwidth adjustment condition for dividing the single sub-band into two or more separate sub-bands, where a combination of the two or more separate sub-bands occupies the same frequency band as the single sub-band. The method also includes determining a separate CCA status for each of the two or more separate sub-bands during a second period. An apparatus for performing this method is also provided.

公开(公告)号：US20180167113A1

公开(公告)日：2018-06-14

申请号：US15887436

申请日：2018-02-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jung Hoon Suh ,  Jun Zhu ,  Osama Aboul-Magd

IPC: H04B7/0456 ,  H04B7/0452 ,  H04B7/06

CPC classification number: H04B7/0456 ,  H04B7/0452 ,  H04B7/0617 ,  H04W84/12

Abstract: An embodiment method for beamforming feedback includes receiving a sounding packet for a beamforming transmission, performing planar rotation in accordance with the sounding packet to generate phi and psi angle values, quantizing the phi and psi angle values to a same bit resolution, and feeding back the quantized phi and psi angle values.

公开(公告)号：US09980290B2

公开(公告)日：2018-05-22

申请号：US14988485

申请日：2016-01-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Meilu Lin ,  Jun Zhu ,  Sheng Sun ,  Yan Xin

IPC: H04W74/08

CPC classification number: H04W74/0816

Abstract: In accordance with an embodiment a method for performing carrier sense multiple access with collision avoidance (CSMA-CA) by a station in a wireless communications network includes determining, in accordance with transmission information related to previous transmission attempts, a rate of success for each window section of a plurality of window sections, selecting a window section in accordance with at least the rate of success for each of the window sections and at least one predetermined threshold, and transmitting data after a back-off delay selected from within the selected window section.

公开(公告)号：US09614711B2

公开(公告)日：2017-04-04

申请号：US14974998

申请日：2015-12-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jun Zhu ,  Osama Aboul-Magd ,  Jung Hoon Suh ,  Meilu Lin

IPC: H04L23/02 ,  H04L27/34

CPC classification number: H04L5/0053 ,  H04L1/0004 ,  H04L1/001 ,  H04L5/0091 ,  H04L27/3405 ,  H04W52/262 ,  H04W72/0446 ,  H04W72/0473 ,  H04W84/12

Abstract: A method for operating a transmitting device using semi-orthogonal multiple access (SOMA) in a wireless local area network (WLAN) includes determining a first quadrature amplitude modulation (QAM) bit allocation, a first coding rate, and a first SOMA group for a first receiving device and a second QAM bit allocation, a second coding rate, and a second SOMA group for a second receiving device in accordance with channel information associated with the first receiving device and the second receiving device, generating a frame including indicators of the first and second QAM bit allocations, the first and second coding rates, and the first and second SOMA groups, and sending the frame to the first receiving device and the second receiving device.

公开(公告)号：US20160352556A1

公开(公告)日：2016-12-01

申请号：US15234891

申请日：2016-08-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jun Zhu ,  Jiayin Zhang ,  Yalin Liu

IPC: H04L27/26 ,  H04B7/04

CPC classification number: H04L27/2656 ,  H04B7/0426 ,  H04L5/0053 ,  H04L27/2602 ,  H04L27/2614 ,  H04W52/50 ,  H04W84/12

Abstract: In an embodiment, a method includes performing, by a transmit end, transmit power enhancement processing on a target field of a preamble in a wireless local area network (WLAN) system, where the target field includes one or more fields, other than a non-legacy signal field, in a non-legacy field of the preamble in the WLAN system. The method also includes sending, by the transmit end, to a receive end the preamble on which transmit power enhancement processing has been performed.

Abstract translation: 在一个实施例中，一种方法包括通过发送端执行在无线局域网（WLAN）系统中的前导码的目标字段上的发射功率增强处理，其中目标字段包括一个或多个字段， 在无线局域网系统中的前导码的非传统字段中的“ - ”相关信号字段。 该方法还包括由发送端向接收端发送已执行发送功率增强处理的前同步码。