公开(公告)号：US11044751B2

公开(公告)日：2021-06-22

申请号：US16565437

申请日：2019-09-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lei Huang ,  Yingpei Lin ,  Jiayin Zhang

IPC: H04W74/08 ,  H04W72/04 ,  H04W16/14

Abstract: A channel access method is provided. Under the method, a network element performs random backoff listen before talk (LBT) for channel preemption, and after the preemption succeeds, performs signal transmission in the first transmission time interval TTI within a maximum channel occupancy time MCOT. The network element also performs nonrandom backoff LBT for channel preemption before another at least one TTI within the maximum channel occupancy time MCOT. This is to ensure coexistence and performance of systems when an LBT requirement of a high unlicensed frequency band is met.

公开(公告)号：US20210014878A1

公开(公告)日：2021-01-14

申请号：US17031481

申请日：2020-09-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Mohamed Adel Salem ,  Jiayin Zhang

IPC: H04W72/12 ,  H04W74/00 ,  H04W16/14

Abstract: Methods and devices for grant-free uplink transmission in unlicensed spectrum are provided. A base station (BS) transmits grant-free resource configuration information to one or more electronic devices (EDs). The grant-free resource configuration information is used to configure the ED for GF uplink transmission in unlicensed spectrum. The GF resource configuration information includes GF ED group-specific resource configuration information indicating GF ED group-specific time-frequency (T/F) resources of the unlicensed spectrum for GF uplink transmission. The ED(s) transmit grant-free uplink transmissions over the unlicensed spectrum in accordance with the GF resource configuration information.

公开(公告)号：US10893438B2

公开(公告)日：2021-01-12

申请号：US15463796

申请日：2017-03-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jiayin Zhang ,  Jun Luo ,  Phillip Barber

IPC: H04W28/06 ,  H04W52/02 ,  H04W84/12 ,  H04L27/26 ,  H04L29/06 ,  H04B7/26

Abstract: Embodiments of the present invention relate to the field of wireless communication, and in particular, to a wireless local area network data transmission method and apparatus, which are used for improving data transmission efficiency. The method of the embodiments of the present invention includes: carrying, by a control domain of a PLCP header domain in a PPDU constructed by an AP, identifier information of the AP, duration information, and an identifier of at least one STA, so that a STA may obtain the identifier information of the AP, the duration information, and the identifier of at least one STA by parsing only the control domain of the PLCP header domain.

公开(公告)号：US10863522B2

公开(公告)日：2020-12-08

申请号：US15909399

申请日：2018-03-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Toufiqul Islam ,  Amine Maaref ,  Jiayin Zhang

IPC: H04W72/08 ,  H04L5/00 ,  H04W72/04 ,  H04W72/14 ,  H04W72/10

Abstract: Systems and methods are provided for transmitting and receiving pre-emption indications. The pre-emption indication is transmitted every K symbols or slots, on a group-common physical downlink control channel. The pre-emption indication is in respect of a group of K symbols or slots preceding a symbol or slot containing the group-common pre-emption indication. The group-common pre-emption indication indicates, for the group of K symbols or slots, which resources are pre-empted. The base station schedules resources for first downlink traffic, and transmits the scheduled first downlink traffic subject to pre-emption, and transmits second downlink traffic by pre-empting resources for the first downlink traffic. On the UE side, the UE receives the pre-emption indication. The UE receives its scheduled traffic taking into account the pre-emption indication.

公开(公告)号：US10750536B2

公开(公告)日：2020-08-18

申请号：US16034498

申请日：2018-07-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jiayin Zhang ,  Chixiang Ma ,  Jun Luo

IPC: H04W74/00 ,  H04W84/12 ,  H04W74/08 ,  H04W74/04

Abstract: A method for indicating a transmission opportunity (TXOP) duration in a wireless communication system includes generating, by a TXOP holder, a physical layer protocol data unit (PPDU). The PPDU includes a High Efficiency Signal field A (HE-SIGA), and the HE-SIGA includes a TXOP duration field. The TXOP duration field is used to indicate to other stations a remaining time for using a channel by a station. The TXOP duration field includes a first part which indicates a granularity used, and a second part which indicates the TXOP duration using the granularity indicated by the first part. The TXOP holder sends the generated PPDU.

公开(公告)号：US10602509B2

公开(公告)日：2020-03-24

申请号：US15233591

申请日：2016-08-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yunbo Li ,  Jiayin Zhang ,  Yi Luo

IPC: H04W4/00 ,  H04W72/04 ,  H04W74/04 ,  H04W84/12

Abstract: Embodiments of the present invention provide a data transmission processing method and apparatus. The data transmission processing method in the embodiments includes successfully reserving, by a first station, a time-frequency resource, and allocating, by the first station, at least a partial time-frequency resource of the time-frequency resource to a third station, so that the third station performs data transmission on the allocated time-frequency resource, where the third station is a non-associated neighboring station of the first station.

公开(公告)号：US10602318B2

公开(公告)日：2020-03-24

申请号：US15130598

申请日：2016-04-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yalin Liu ,  Jiayin Zhang ,  Yi Luo

IPC: H04W4/06 ,  H04W74/06 ,  H04L29/08 ,  H04L29/06 ,  H04L12/865 ,  H04L12/851

Abstract: A method, an apparatus and a network device for user data transmission are provided, where the method includes: transmitting a multicast frame for acquiring a user scheduling request to users in a user group, the multicast frame includes a long training sequence and a spread spectrum sequence(s) allocated to all users in the user group; receiving the user scheduling request(s) fed back by a user(s) with data transmission in the user group, the user scheduling request(s) is fed back by the user(s) using at least one of the long training sequence(s) and the spread spectrum sequence(s) allocated to the user(s); scheduling user data transmission according to the user scheduling request(s). According to embodiments of the present disclosure, the delay of users with data transmission is reduced, and the quality of service for the system is improved.

公开(公告)号：US10425936B2

公开(公告)日：2019-09-24

申请号：US16356040

申请日：2019-03-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jun Luo ,  Jiayin Zhang ,  Jiyong Pang

IPC: H04W72/04 ,  H04L5/00 ,  H04B7/06 ,  H04W88/08 ,  H04W84/12

Abstract: The present invention provides a WLAN system resource indication method and apparatus. The method includes: generating, by an access point, a frame that carries resource indication information; and sending, to multiple stations, the frame that carries the resource indication information. The resource indication information includes multiple pieces of sub resource indication information. Correspondingly, each piece of the sub resource indication information uniquely corresponds to one of the multiple stations. Therefore, a station side does not need read the entire resource indication information, so as to reduce resource overheads and improve efficiency.

公开(公告)号：US10397037B2

公开(公告)日：2019-08-27

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: H04L5/00 ,  H04L27/26 ,  H04W28/06 ,  H04L25/02 ,  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：US20190215814A1

公开(公告)日：2019-07-11

申请号：US16356040

申请日：2019-03-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jun Luo ,  Jiayin Zhang ,  Jiyong Pang

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04W72/044 ,  H04B7/0617 ,  H04B7/0669 ,  H04L5/0007 ,  H04L5/003 ,  H04L5/0094 ,  H04W72/04 ,  H04W84/12 ,  H04W88/08

Abstract: The present invention provides a WLAN system resource indication method and apparatus. The method includes: generating, by an access point, a frame that carries resource indication information; and sending, to multiple stations, the frame that carries the resource indication information. The resource indication information includes multiple pieces of sub resource indication information. Correspondingly, each piece of the sub resource indication information uniquely corresponds to one of the multiple stations. Therefore, a station side does not need read the entire resource indication information, so as to reduce resource overheads and improve efficiency.