公开(公告)号：US20190342849A1

公开(公告)日：2019-11-07

申请号：US16515747

申请日：2019-07-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Feng Gao ,  Guangwei Yu ,  Feng Yu ,  Wurong Zhang

IPC: H04W56/00

Abstract: Embodiments of the present disclosure provide a time service method, a terminal device, and a network device. The method includes: determining, by a terminal device, a first moment of a first downlink message, and determining a second moment of the first downlink message; determining, by the terminal device, a third moment of a first uplink message, and determining a fourth moment of the first uplink message; and determining, by the terminal device, a time offset between the terminal device and the network device based on the first moment, the second moment, the third moment, and the fourth moment. According to the method provided, a time service error is effectively reduced.

公开(公告)号：US20190274180A1

公开(公告)日：2019-09-05

申请号：US16417267

申请日：2019-05-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haifeng Yu ,  Xin Xiong ,  Feng Yu

IPC: H04W76/18 ,  H04W76/27 ,  H04W76/19 ,  H04W24/10

Abstract: Embodiments of the present invention relate to the field of communications technologies, and disclose a method and an apparatus for recovering from a radio downlink failure. The method includes: monitoring a first radio link to determine whether a radio downlink failure occurs on the first radio link, where the first radio link is a currently connected radio link; if it is detected that the radio downlink failure occurs on the first radio link, starting a physical-layer-monitored automatic-recovery process for the first radio link and starting a Radio Link Control RRC connection re-setup process to set up a second radio link; and recovering from the radio downlink failure through either of the physical-layer-monitored automatic-recovery process and the RRC connection re-setup process.

公开(公告)号：US20180164613A1

公开(公告)日：2018-06-14

申请号：US15576612

申请日：2015-05-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haishui Ye ,  Feng Yu ,  Xiaojiong Wen ,  Jiahui Zhao

IPC: G02F1/05 ,  H04N5/225 ,  G02B5/20 ,  G02B5/23 ,  H04N5/232

CPC classification number: G02F1/0541 ,  G02B5/201 ,  G02B5/208 ,  G02B5/23 ,  G02B13/001 ,  G03B17/02 ,  H04N5/2254 ,  H04N5/23212

Abstract: Embodiments of the present invention disclose a photochromic lens module, a camera, and a terminal device. The photochromic lens module includes a lens module and a photochromic thin film. The lens module includes a first surface and a second surface. When the first surface is an incident surface, the second surface is a refractive surface; when the second surface is an incident surface, the first surface is a refractive surface. The photochromic thin film includes a first area and a second area. The photochromic thin film covers the first surface or the second surface. The first area uses a negative photochromic material, and the second area uses a positive photochromic material. By means of the embodiments of the present invention, a lens module can be effectively protected.