公开(公告)号：US10178698B2

公开(公告)日：2019-01-08

申请号：US16029065

申请日：2018-07-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jiayin Zhang ,  Mohamed Adel Salem ,  Jun Zhu

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

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：US10172159B2

公开(公告)日：2019-01-01

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 ,  H04W84/12 ,  H04W72/04

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.

公开(公告)号：US20180352578A1

公开(公告)日：2018-12-06

申请号：US16029065

申请日：2018-07-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jiayin Zhang ,  Mohamed Adel Salem ,  Jun Zhu

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

CPC classification number: H04W74/0816 ,  H04B17/309 ,  H04W16/14 ,  H04W72/0453 ,  H04W72/06 ,  H04W74/0808

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：US10149322B2

公开(公告)日：2018-12-04

申请号：US15220258

申请日：2016-07-26

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04W72/04 ,  H04W74/08 ,  H04W72/12 ,  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 by using the channel.

公开(公告)号：US10028195B2

公开(公告)日：2018-07-17

申请号：US15256346

申请日：2016-09-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jun Luo ,  Jiayin Zhang ,  Rui Ni

IPC: H04W36/30 ,  H04W8/20 ,  H04W8/18 ,  H04W36/00 ,  H04L12/701 ,  H04W24/02

Abstract: Embodiments of the present invention provide a data forwarding control method and system, a controller, and an access device. The method includes: after receiving a first control request of a first access point AP, obtaining, by a first controller, a network address of the first AP, where the first control request is used to request the first controller to manage the first AP; sending a network address of a first forwarding device to the first AP, instructing the first AP to send user data to the first forwarding device, sending the network address of the first AP and a predefined data forwarding rule to the first forwarding device, and instructing the first forwarding device to forward the user data of the first AP according to the predefined data forwarding rule. The present invention implements control, by a controller, on AP service data forwarding, and improves a WLAN throughput.

公开(公告)号：US09917678B2

公开(公告)日：2018-03-13

申请号：US14946334

申请日：2015-11-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yalin Liu ,  Jiayin Zhang ,  Yi Luo

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

CPC classification number: H04L5/0053 ,  H04L5/0048 ,  H04L25/0202 ,  H04L27/2613 ,  H04L27/2692 ,  H04W72/0453

Abstract: The present disclosure discloses a method and an apparatus for generating a long training sequence and sending a signal, and belongs to the field of wireless communications. The method includes: obtaining a plurality of long training sequences according to a system parameter and a preset sequence construction formula, wherein the plurality of long training sequences include a plurality of basic training sequences and a plurality of shift training sequences obtained according to cyclic shift of the basic training sequences; and configuring a mapping rule between a terminal device and a long training sequence, for enabling the terminal device to select a long training sequence according to the mapping rule as a long training sequence for sending a signal. By adopting the present disclosure, energy consumption of the receiving end may be reduced and accuracy of channel estimation may be improved.

公开(公告)号：US20180069659A1

公开(公告)日：2018-03-08

申请号：US15812903

申请日：2017-11-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jiayin Zhang ,  Jun Zhu ,  Jiyong Pang

IPC: H04L1/00 ,  H03M13/09

CPC classification number: H04L1/0061 ,  G06F11/1004 ,  H03M13/091 ,  H04L1/0041 ,  H04L1/0059 ,  H04W72/00

Abstract: A method is provided, including: receiving a to-be-decoded signaling sub-segment, where the to-be-decoded signaling sub-segment includes one or more to-be-decoded sequences D0; obtaining a local ID sequence N2 with an N-bit length according to ID information stored on a receive end; for each to-be-decoded sequence D0, setting an initial state and a final state of a decoder to a reference state sequence with a T length and obtaining a decoded sequence D1, where at least some bits in the reference state sequence are identical to some bits in the obtained local ID sequence N2, referred to as a specific reference state sequence in short; and performing processing according to a decoding result.

公开(公告)号：US09912455B2

公开(公告)日：2018-03-06

申请号：US14955254

申请日：2015-12-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yalin Liu ,  Jiayin Zhang ,  Yi Luo

IPC: H04L5/00 ,  H04L23/02 ,  H04L27/26 ,  H04L25/02

CPC classification number: H04L5/0048 ,  H04L5/005 ,  H04L23/02 ,  H04L25/0226 ,  H04L27/2613

Abstract: A data transmission method and apparatus are provided, which includes: determining, by a transmitting device, a long training sequence set; determining at least one receiving device set, where the receiving device set includes at least one receiving device in a communications system; determining a first mapping relationship, where the first mapping relationship is a mapping relationship between the at least one receiving device set and at least one set-use long training sequence in the long training sequence set; determining, according to a target receiving device set and the first mapping relationship, a target set-use long training sequence corresponding to the target receiving device set, and performing encapsulation processing on first data to generate a first data packet, where a long training sequence field in a physical layer of the first data packet carries a first long training sequence symbol.

公开(公告)号：US09807698B2

公开(公告)日：2017-10-31

申请号：US15011011

申请日：2016-01-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jiayin Zhang ,  Yingpei Lin ,  Yi Luo

IPC: H04L1/00 ,  H04W52/24 ,  H04W52/36 ,  H04W52/50 ,  H04W52/14 ,  H04W52/38

CPC classification number: H04W52/243 ,  H04W52/143 ,  H04W52/367 ,  H04W52/38 ,  H04W52/50

Abstract: The present invention provides a data frame sending and receiving method and apparatus. The data frame sending method includes: receiving, by a first access point, first interference power parameters fed back by associated stations of the first access point, and receiving second interference power parameters sent by a second access point; if determining that a channel on which the first access point works is currently being occupied by the second access point, determining to-be-scheduled stations and transmission powers of the first access point for the to-be-scheduled stations, sending scheduling indication signaling at the determined transmission powers, and receiving scheduling indication response signaling sent by a schedulable station; and sending a data frame to the schedulable station at a transmission power corresponding to the schedulable station among the determined transmission powers.

公开(公告)号：US20170251458A1

公开(公告)日：2017-08-31

申请号：US15593533

申请日：2017-05-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jun Luo ,  Jiayin Zhang ,  Yingpei Lin ,  Phillip Barber ,  Le Liu ,  Sheng Liu

IPC: H04W72/04 ,  H04L27/26 ,  H04L1/00 ,  H04W72/12

CPC classification number: H04W72/042 ,  H04L1/0003 ,  H04L1/0009 ,  H04L27/2602 ,  H04W72/00 ,  H04W72/1289 ,  H04W84/12

Abstract: A resource indication method in a wireless local area network is provided, where the method includes generating, by an access point, a data frame that includes a preamble, where the preamble includes a signaling indication part B (SIG-B), the SIG-B includes a common part and a user part following the common part. The common part is used to indicate a quantity of scheduled stations, identification information of the scheduled station, and a location of communication resource information of the scheduled station in the user part, the user part is used to indicate the communication resource information of the scheduled station, and the communication resource information includes resource indication information, MCS information of a data part, spatial flow quantity information, or power control information; and sending the data frame.