公开(公告)号：US20180152967A1

公开(公告)日：2018-05-31

申请号：US15577533

申请日：2016-05-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lili ZHANG ,  Zhiming DING

IPC: H04W74/08 ,  H04W52/34

CPC classification number: H04W74/0816 ,  H04L1/00 ,  H04W52/242 ,  H04W52/244 ,  H04W52/286 ,  H04W52/34 ,  H04W52/343 ,  H04W52/48 ,  H04W52/50 ,  H04W84/12

Abstract: A sending node sends an RTS control packet carrying an identifier of a receiving node, so that the receiving node determines a power update value according to an initial transmit power of the RTS control packet and sends a CTS control packet by using the initial transmit power, where the CTS control packet carries an identifier of the sending node and the power update value, a first part of adjacent nodes other than the sending node, if determining that the first part of adjacent nodes are located beyond coverage of an updated power of the receiving node and the sending node, determine a first limited power and perform control packet transmission according to the first limited power; and receiving, by the sending node, the CTS control packet, and sending a data packet by using the updated power.

公开(公告)号：US20200252843A1

公开(公告)日：2020-08-06

申请号：US16636535

申请日：2017-08-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chuting YAO ,  Haibo XU ,  Jian WANG ,  Zhenguo DU ,  Zhiming DING

IPC: H04W36/00 ,  H04W76/27 ,  H04L12/24 ,  H04L12/801 ,  H04L29/08 ,  H04W36/30

Abstract: The method is applied to a communications system including a first network device, a second network device, and a terminal device. The terminal device is communicatively connected to the first network device and the second network device respectively. The method includes: sending, by a network device, a first message to the terminal device, where the first message is used to determine that the terminal device stops communication with the first network device, or the first message is used to determine that the terminal device releases a protocol stack and a data radio bearer that are corresponding to the first network device; and the network device is the first network device or the second network device. Therefore, power consumption of the terminal device or the first network device and waste of air interface resources can be reduced, and flexibility can effectively be improved in a communication process.

公开(公告)号：US20190086533A1

公开(公告)日：2019-03-21

申请号：US16085069

申请日：2017-03-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Henghui LU ,  Zhiming DING ,  Zhenguo DU

IPC: G01S13/76 ,  G01S7/295

Abstract: Embodiments of the present invention disclose a Wi-Fi ranging method including: receiving, by a target node, a first NDP sent by a reference node and recording a first NDP receiving time of receiving the first NDP, and sending a second NDP to the reference node and recording a second NDP sending time of sending the second NDP; receiving, by the target node, a ranging response frame sent by the reference node, where the ranging response frame includes a first NDP sending time at which the reference node sends the first NDP and a second NDP receiving time at which the reference node receives the second NDP; and calculating, by the target node, a distance between the target node and the reference node based on the first NDP receiving time, the second NDP sending time, the first NDP sending time, and the second NDP receiving time.

公开(公告)号：US20190208514A1

公开(公告)日：2019-07-04

申请号：US16327953

申请日：2016-08-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Gaokun PANG ,  Ping FANG ,  Zhiming DING

IPC: H04W72/04

Abstract: A method implemented by a first device includes: sending a first message to a second device on a first bandwidth; receiving on the first bandwidth, a second message sent by the second device in response to the first message; sending a third message on a second bandwidth, where the first message, the second message, and the third message all carry device-reserved time-frequency resource information; and within the device-reserved time-frequency resource information, sending, a message to the second device on the first bandwidth; or receiving on the first bandwidth, a message sent by the second device, where if the first bandwidth is less than 20 M, the second bandwidth is greater than or equal to 20 M; or if the first bandwidth is greater than or equal to 20 M, the second bandwidth is less than 20 M. Embodiments of the present disclosure further provide a related device and a system.

公开(公告)号：US20180042046A1

公开(公告)日：2018-02-08

申请号：US15555463

申请日：2015-03-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhiming DING

IPC: H04W74/04 ,  H04W12/06 ,  H04W12/04 ,  H04W48/14 ,  H04W76/02 ,  H04W48/20 ,  H04W48/10

CPC classification number: H04W74/04 ,  H04W12/04 ,  H04W12/06 ,  H04W12/08 ,  H04W12/12 ,  H04W48/10 ,  H04W48/14 ,  H04W48/20 ,  H04W72/12 ,  H04W74/004 ,  H04W76/14 ,  H04W84/12

Abstract: Embodiments of the present invention disclose a pseudo access method, a direct connection scheduling method for pseudo access, a station, and an access point, so as to improve channel use efficiency for communication between STAs in a dense scenario. The method in the embodiments of the present invention includes: after finding an AP supporting pseudo access, sending, by a STA, pseudo access information to the AP, and establishing a pseudo access association with the AP, so that a STA that is not an authorized user of the AP can perform pseudo access to the AP, and accept scheduling management by the AP.

公开(公告)号：US20170201930A1

公开(公告)日：2017-07-13

申请号：US15470559

申请日：2017-03-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ji CHEN ,  Zhiming DING ,  Gaokun PANG

IPC: H04W48/08 ,  H04W72/00 ,  H04W48/20 ,  H04L29/12 ,  H04W40/02

Abstract: The present invention discloses a service processing method and apparatus, which belong to the field of Internet technologies. After the AP and an STA first perform MAC address change notification and then establish a first MAC connection, the AP sends service data of the STA to the STA through the first MAC connection by using a resource related to a second MAC connection. Therefore, in a MAC address change process, there is no need to re-establish a resource at an upper layer of a MAC layer, and only a change in invoking a MAC layer resource is required at a layer at which the MAC layer resource is used. Time and a resource for processing a service can be reduced without affecting service continuity and stability of the upper layer. Therefore, the service is processed in a timely manner and service processing efficiency is improved.

公开(公告)号：US20170208618A1

公开(公告)日：2017-07-20

申请号：US15473277

申请日：2017-03-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhiming DING ,  Zhenguo DU

IPC: H04W72/12 ,  H04W72/04 ,  H04L5/00 ,  H04W72/00

CPC classification number: H04W72/1263 ,  H04L5/0051 ,  H04W72/005 ,  H04W72/0453 ,  H04W72/1231 ,  H04W76/14 ,  H04W84/12

Abstract: A direct link scheduling method implemented by an access point (AP) includes: multicasting or broadcasting information about multiple direct links participating in a next direct link scheduled period; obtaining, in the direct link scheduled period, sounding results sent by the both terminal devices on each of the multiple direct links, and separately allocating channel resources to the multiple direct links according to the sounding results in the direct link scheduled period; and/or sub-channels or transmission time in channel resources of two direct links interfering with each other are or is different; and sending information about the allocated channel resource to the both terminal devices on each of the multiple direct links. The embodiments of the present invention can avoid channel contention between different direct links and reduce a probability that a conflict occurs because of the channel contention.