公开(公告)号：US10306676B2

公开(公告)日：2019-05-28

申请号：US16213647

申请日：2018-12-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jiayin Zhang ,  Mohamed Adel Salem ,  Jun Zhu

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

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：US20190123991A1

公开(公告)日：2019-04-25

申请号：US16222466

申请日：2018-12-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jung Hoon Suh ,  Osama Aboul-Magd ,  Jiayin Zhang

IPC: H04L12/26 ,  H04W24/06 ,  H04B7/0452 ,  H04B7/06

Abstract: System and method embodiments for generating and transmitting a sounding frame in wireless network. In an embodiment, a method for uplink multi-user feedback polling in a wireless network includes generating, by an access point (AP) in the wireless network, a sounding frame including a physical layer (PHY) trigger and a list of stations (STAs) to provide feedback, the PHY trigger indicating that the STAs in the list of STAs are to perform channel estimation; transmitting, by the AP, the sounding frame to one or more STAs; and receiving, by the AP, one or more uplink multi-user feedback frames from the STAs.

公开(公告)号：US10206220B2

公开(公告)日：2019-02-12

申请号：US15184830

申请日：2016-06-16

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xun Yang ,  Yi Luo ,  Jiayin Zhang

IPC: H04W72/12 ,  H04W88/08 ,  H04W72/04 ,  H04W16/14 ,  H04W88/02

Abstract: Embodiments disclose a scheduling method. The method includes sending, by an access point, a scheduling request to a first scheduling server according to a data transmission requirement, where the scheduling request includes frequency band bandwidth information of a contention frequency band that is applied for and frequency band use time information of the contention frequency band that is applied for. The method also includes receiving, by the access point, a contention frequency band that is allocated by the first scheduling server to the access point according to a spectrum list and the scheduling request, where the spectrum list includes at least frequency band use information and interference information of the access point. The method also includes performing, by the access point, scheduling transmission by using the allocated contention frequency band.

公开(公告)号：US10200225B2

公开(公告)日：2019-02-05

申请号：US15473269

申请日：2017-03-29

Applicant: Huawei Technologies Co., Ltd.

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

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

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：US10129069B2

公开(公告)日：2018-11-13

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 ,  H04W52/50 ,  H04B7/0426 ,  H04L5/00 ,  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.

公开(公告)号：US10038764B2

公开(公告)日：2018-07-31

申请号：US14972989

申请日：2015-12-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yalin Liu ,  Jiayin Zhang ,  Yi Luo

IPC: H04L29/06 ,  H04L25/02 ,  H04L5/00 ,  H04W72/04 ,  H04L27/26

CPC classification number: H04L69/22 ,  H04L5/005 ,  H04L25/0202 ,  H04L25/0226 ,  H04L27/2613 ,  H04W72/04

Abstract: A data transmission method includes determining, by a transmitting device, a long training sequence set, where the long training sequence set includes a plurality of long training sequences. The method also includes determining a mapping relationship between each long training sequence in the long training sequence set and first sub-identity information in identity information of each receiving device in a communications system. When data needs to be transmitted to a target receiving device, the method includes selecting a target long training sequence from the long training sequence set according to first sub-identity information of the target receiving device and the mapping relationship. The method includes performing encapsulation processing on the data according to the target long training sequence to generate a data packet, so as to carry the target long training sequence in the data packet. The method includes sending the data packet to the target receiving device.

公开(公告)号：US20180205587A1

公开(公告)日：2018-07-19

申请号：US15922274

申请日：2018-03-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhengzheng Xiang ,  Jun Zhu ,  Jiayin Zhang ,  Jiyong Pang

IPC: H04L27/26 ,  H04L25/02

CPC classification number: H04L27/2621 ,  H04L5/0007 ,  H04L5/0048 ,  H04L25/0202 ,  H04L25/0224 ,  H04L27/2602 ,  H04L27/2628 ,  H04W28/06 ,  H04W84/12

Abstract: Information transmission methods and apparatuses in a wireless local area network are provided. One example method includes generating a legacy signaling field (L-SIG) and a repeated legacy signaling field (RL-SIG), where subcarriers with indexes −28, −27, 27, and 28 in the L-SIG and the RL-SIG in a 20 MHz bandwidth carry −1, −1, −1, and 1, respectively. The example method also includes sending the generated L-SIG and RL-SIG.

公开(公告)号：US20180124834A1

公开(公告)日：2018-05-03

申请号：US15411629

申请日：2017-01-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Mohamed Adel Salem ,  Jiayin Zhang

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

Abstract: Methods and systems for access to unlicensed spectrum are described. Each of one or more transmit points (TPs), transmit over an unlicensed spectrum a downlink transmission starting at a downlink transmission starting time after a successful clear channel assessment (CCA) process of each of the one or more TPs. For each of the one or more TPs, the successful CCA process has a CCA process starting time enabling the successful CCA process to be completed at the downlink transmission starting time. The one or more TPs may be licensed assisted access (LAA) TPs, and the starting time corresponds to a starting time of a licensed spectrum subframe.

公开(公告)号：US09554399B2

公开(公告)日：2017-01-24

申请号：US14449694

申请日：2014-08-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jiayin Zhang ,  Yongming Liang ,  Kunpeng Liu

IPC: H04W4/00 ,  H04W74/08 ,  H04B7/02 ,  H04W76/04 ,  H04W74/00

CPC classification number: H04W74/0833 ,  H04B7/024 ,  H04W74/002 ,  H04W76/27

Abstract: A method, an eNodeB and a User Equipment for transmitting Random Access Response messages are provided. The method includes: receiving Random Access Preamble transmitted by the UE through the Random Access Channel; according to the RAP, determining whether the UE belongs to the central group or the edge group of the Random Access Area; after determining that the UE belongs to the central group of the RAA, determining the RAA which the UE belongs to; transmitting the first RAR message to the UE according to the RAP, the channel resource information of the RACH, and the RAA. By transmitting the RAR message on the basis of the RAP and the RAA, the method, eNB and UE for transmitting RAR messages enable different RAR messages to be transmitted with respect to identical Random Access requests of different RAAs.

Abstract translation: 提供了用于发送随机接入响应消息的方法，eNodeB和用户设备。 该方法包括：接收UE通过随机接入信道发送的随机接入前导码; 根据RAP，确定UE是否属于随机接入区的中心组或边缘组; 在确定UE属于RAA的中心组之后，确定UE所属的RAA; 根据RAP，RACH的信道资源信息和RAA，向UE发送第一RAR消息。 通过基于RAP和RAA发送RAR消息，用于发送RAR消息的方法，eNB和UE使得能够针对不同RAA的相同随机接入请求发送不同的RAR消息。

公开(公告)号：US20160309513A1

公开(公告)日：2016-10-20

申请号：US15191307

申请日：2016-06-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chixiang Ma ,  Tianyu Wu ,  Jiayin Zhang

IPC: H04W74/08 ,  H04W72/12

CPC classification number: H04W74/0816 ,  H04W72/0446 ,  H04W72/1252 ,  H04W84/12

Abstract: The present disclosure provides a data transmission method and device. The method includes sensing, by a station, whether a channel allocated by an access point associated with the station is occupied, before obtaining a downlink scheduling phase. If the channel is not occupied, sending, by the station, channel clear signaling to the access point, where the channel clear signaling includes a first identifier used for identifying the station and a second identifier used for identifying the access point. The method also includes receiving, by the station in the downlink scheduling phase, data transmitted by the access point. The present disclosure ensures normal data transmission.

Abstract translation: 本公开提供了一种数据传输方法和装置。 所述方法包括：在获得下行链路调度阶段之前，由站点感测由与所述站相关联的接入点分配的信道是否被占用。 如果该信道没有被占用，则由该站向接入点发送信道清除信令，其中信道清除信令包括用于识别该站的第一标识符和用于识别接入点的第二标识符。 该方法还包括由下行链路调度阶段中的站接收由接入点发送的数据。 本公开确保正常的数据传输。