公开(公告)号：US20230336742A1

公开(公告)日：2023-10-19

申请号：US18343141

申请日：2023-06-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yunfeng HAN ,  Yanjie GU ,  Zhan GUO

IPC: H04N19/164 ,  H04N19/105 ,  H04N19/174 ,  H04N19/30 ,  H04N19/187 ,  H04N19/172

CPC classification number: H04N19/164 ,  H04N19/105 ,  H04N19/172 ,  H04N19/174 ,  H04N19/187 ,  H04N19/30

Abstract: Embodiments of this application provide a wireless projection method and apparatus, and relate to the communication field, to reduce image tearing and freezing and image quality deterioration occurring in wireless projection, and improve user experience. The wireless projection method is applied to a Wi-Fi communication system, and includes: An electronic device transmits a scalable video coding slice of a first video frame to a display device in a first video transmission period; obtains channel state information that is fed back by the display device and that is for transmitting the first video frame; and selectively enables a retry mechanism based on the channel state information.

公开(公告)号：US20230300615A1

公开(公告)日：2023-09-21

申请号：US18322728

申请日：2023-05-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Kai LIU ,  Yanjie GU

IPC: H04W12/06 ,  H04W12/0433

CPC classification number: H04W12/06 ,  H04W12/0433 ,  H04W84/12

Abstract: This application provides a security authentication method and apparatus applied to Wi-Fi, to help prevent a password from being shared among a plurality of devices, and implement management of a second device by a first device. In the method, an access point AP receives a first password input by the first device, where the first password is a password preset before delivery; and when checking on the first password by the AP succeeds, the AP obtains a second password shared between the AP and the first device, and performs 4-way handshake with the first device based on the second password. The second password is a shared key between the first device and the AP. Then, the AP can receive a first request from the first device, and send a third password to the first device in response to the first request.

公开(公告)号：US20230308874A1

公开(公告)日：2023-09-28

申请号：US18323211

申请日：2023-05-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yanjiang YANG ,  Kai LIU ,  Yanjie GU ,  Lianbing TIAN

IPC: H04W12/06 ,  H04W12/0431 ,  H04W12/041

CPC classification number: H04W12/06 ,  H04W12/041 ,  H04W12/0431

Abstract: This application provides a security authentication method and apparatus applied to Wi-Fi. An access point AP negotiates, based on a password, a pairwise master key PMK with a first device based on a twin base password encrypted key exchange TBPEKE protocol, where the password is a shared key between the AP and the first device; and the AP performs a 4-way handshake with the first device based on the PMK. Therefore, in embodiments of this application, a PMK with a high entropy value can be generated by performing a TBPEKE procedure, so that the security authentication method provided in embodiments of this application can help resist an offline dictionary attack.

公开(公告)号：US20240031935A1

公开(公告)日：2024-01-25

申请号：US18372848

申请日：2023-09-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Weihua LI ,  Shuqi WANG ,  Xiaofeng HE ,  Yanjie GU ,  Wei Khuen CHAN

IPC: H04W52/02

CPC classification number: H04W52/0235 ,  H04W84/12

Abstract: Embodiments of this application provide a WLAN communication apparatus and a control method. The method includes: adjusting power consumption of an external LNA based on a WLAN signal, to dynamically adjust the power consumption of the external LNA based on an actual requirement, so that the power consumption of the external LNA is reduced while a service requirement is ensured, and further, overall power consumption of a device is reduced.

公开(公告)号：US20230345522A1

公开(公告)日：2023-10-26

申请号：US18216240

申请日：2023-06-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bani LI ,  Yanjie GU

IPC: H04W72/566 ,  H04W72/23

CPC classification number: H04W72/569 ,  H04W72/23

Abstract: A service scheduling method and apparatus are provided, which relate to the field of communication technologies and are applied to a Wi-Fi network system, to resolve a problem that communication delays of a large amount of service data cannot be ensured when a communication channel in the Wi-Fi network system is limited. An example solution includes: a sending node obtains a waiting delay and a category of each data frame in a plurality of data frames at a current moment, determines a service priority of each data frame based on the category of each data frame, and determines, from the plurality of data frames, a target frame that is preferentially sent at the current moment based on the waiting delay, a preset delay, and the service priority of each data frame; and then the sending node sends the target frame to a receiving node at the current moment.

公开(公告)号：US20230370176A1

公开(公告)日：2023-11-16

申请号：US18360272

申请日：2023-07-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Kai ZHOU ,  Qinghui WANG ,  Yanjie GU

IPC: H04B17/19 ,  H04B17/318 ,  H04B17/23

CPC classification number: H04B17/19 ,  H04B17/318 ,  H04B17/23

Abstract: Embodiments of this application disclose a blocked antenna alarm method, and a communication chip and device that relate to the chip field. The embodiments resolve a problem where a communication device cannot prompt a user that an antenna of the communication device is blocked. In the method, the communication chip obtains an attenuation value of an air interface loopback signal through an antenna of the communication device. The communication chip then determines, based on the attenuation value, whether the antenna is blocked. When it is determined that the antenna is blocked, the communication chip indicates a processor of the communication device to output, to a user, alarm information indicating that the antenna is blocked.

公开(公告)号：US20230252919A1

公开(公告)日：2023-08-10

申请号：US18300435

申请日：2023-04-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yanjie GU ,  Weihua LI ,  Yunfeng HAN ,  Lin GAO

IPC: G09G3/00

CPC classification number: G09G3/002 ,  G09G2370/16 ,  G09G2330/022 ,  G09G2354/00

Abstract: Embodiments of this application relate to the field of communication technologies and disclose a wireless projection method, apparatus, and system. The method includes: A wireless projection apparatus determines, based on a display frame rate used when the wireless projection apparatus displays an image, duration of a first transmission period. The wireless projection apparatus negotiates with a display apparatus to determine a configuration of a time domain resource in the first transmission period, where the time domain resource in the first transmission period is configured to include a first time segment, a second time segment, and a third time segment, the first time segment is used to send first data to the display apparatus, the second time segment is used to receive second data sent by the display apparatus, and the third time segment is used for sleep.

公开(公告)号：US20230224190A1

公开(公告)日：2023-07-13

申请号：US18187061

申请日：2023-03-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Wei RUAN ,  Yanjie GU ,  Tianyu XU

IPC: H04L25/02 ,  H04B7/0452

CPC classification number: H04L25/0242 ,  H04L25/0204 ,  H04B7/0452

Abstract: This application provides a wireless communication method and apparatus. The communication method includes: A sending device obtains a first matrix, where the first matrix is generated based on channel estimation of a communication channel between the sending device and a signal receiving device; the sending device generates an interference signal based on interference information and a second matrix, where the second matrix is an orthogonal matrix of the first matrix; and the sending device superimposes the interference signal and a to-be-sent signal, and sends a superimposed signal to the receiving device.