Huawei Technologies Co., Limited

Shandong University

Zte Corporation

Shenzhen New Huayi Instrument Co., Ltd.

Chenglong Wang

Meng Chen

Qingliang Zeng

Jin Jiang

Haowen Xu

Haizheng Tang

Jinsong Lv

Zhaosheng Meng

Zuojun Qin

Lili Guo

Zhongxin Liu

Yifang Chen

Xueting Wang

Konggang Wei

Wei Chen

Xin Zhang

Yuping Hong

Fredrik Ohlsson

Liang Wang

Vadim Tsoi

Mingliang Hao

Youhe Ke

Yue Wang

Zhenya Li

Zheng Song

Guzheng Wu

Wei Cai

Chao Gao

Chong Zheng

Dong Yuan

Haiquan Lv

Yuxiao Jiang

Zhihai Liu

Jiangpeng Zhou

Fan Bai

Shiyan Hu

Shumeng Ma

Linlin Yang

Wenjian Li

Zhiguo Yang

Zhiwei Qiu

Junwen Jin

Genyuan Miao

Xueqian Wei

Fanfan Ma

Pengchao Feng

Lirong Wan

Zhenguo Lu

Peisi Zhong

Shoubo Jiang

Renhui Wang

Deshan Xu

Weimin Li

A timing method over air interface, a mobile terminal device and a readable storage medium are disclosed. The method may include: receiving a broadcast message transmitted by a base station, the broadcast message including a time synchronization message; when a synchronization time source is the time synchronization message, executing a time synchronization strategy to determine whether the time precision of the base station satisfies a preset condition; if the time precision of the base station satisfies the preset condition, continuously using the time synchronization message as the synchronization time source; and, if the time precision of the base station does not satisfying the preset condition, using local maintenance time information as the synchronization time source.

Air interface time service method for mobile terminal, mobile terminal and readable storage medium

An angle adjustment apparatus is provided, and includes a fastening component and an angle adjustment component rotatably connected to the fastening component. At least a part of the angle adjustment component is located in the fastening component, and the angle adjustment component can rotate in a horizontal direction and a vertical direction relative to the fastening component. In this way, angle adjustment efficiency is improved. In addition, a communication device can be prevented from being oblique after angle adjustment, thereby preventing a signal coverage function of the communication device from being affected.

Angle adjustment apparatus

Disclosed are a compound impact-resistant device and an application thereof. The compound impact-resistant device includes an inner cylinder, a first pressure sensor and an outer cylinder; an inner cavity of the inner cylinder is connected to a magnetorheological damper, a spiral valve element, a floating piston and a spring from bottom to top; and the outer cylinder is connected to a piston rod, a bottom end of the piston rod penetrates a top of the inner cylinder, the spring and the floating piston to be connected to the spiral valve element, and a portion below the spiral valve element is filled with hydraulic oil. The compound impact-resistant device can provide specific initial support force and achieve active self-adaptation to dynamic impact, thus solving the problems that traditional hydraulic buffers cannot provide initial support force and traditional mechanical crushing members have difficulty in providing large support force.

Composite impact resistance apparatus and applications thereof

A rotation bracket includes an L-shaped connecting rod, a rotation mechanism, and a stand base. The L-shaped connecting rod includes a vertical rod and a horizontal rod. The vertical rod is configured to connect to a communications device. The horizontal rod is fastened to the rotation mechanism, and the horizontal rod is a rotatable rod. The rotation mechanism is fastened to a top of the stand base, and the rotation mechanism is configured to drive the L-shaped connecting rod to rotate in a horizontal plane. The stand base is configured to fixedly connect to an inner surface of a wall or to a ground.

Rotation bracket

An anti-impact device includes a first connector, an upper outer cylinder, a lower outer cylinder and a second connector which are sequentially connected, where a top of the lower outer cylinder is sleeved with the upper outer cylinder to be movably connected to the upper outer cylinder; an aluminum honeycomb and a magnetorheological buffer outer cylinder are arranged inside the lower outer cylinder, the aluminum honeycomb is arranged at a bottom of a lower end cover, a piston rod is arranged inside the magnetorheological buffer outer cylinder, a top end of the piston rod extends out of an upper end cover and is connected to a collision head, and the piston rod between the collision head and the upper end cover is sleeved with a return spring; and an electromagnetic coil is wound around the piston rod, a damping piston is arranged at a lower part of the piston rod.

Anti-impact device and working method thereof

Disclosed is a magnetically controlled material-based magnetorheological pilot operated safety valve for a hydraulic support. The safety valve comprises a valve body, a valve core, a reset spring, and a pilot valve; the valve core is disposed in a valve core chamber provided in the valve body, and the pilot valve is disposed in a pilot valve chamber provided in the valve body; the pilot valve includes a magnetically controlled shape memory alloy, an electromagnet, a push rod, a piston, a magnetorheological fluid control coil, and a pilot valve core, which are arranged sequentially from left to right; a plurality of magnetically controlled material control coils are provided on the electromagnet; the magnetically controlled shape memory alloy runs through the electromagnet and is then connected to the push rod, the push rod is connected to the piston, the magnetorheological fluid lies between the piston and the pilot valve core.

Magnetically controlled material-based magnetorheological pilot operated safety valve for hydraulic support, and applications of the same

A multi-buffer energy accumulation apparatus comprises: an energy storage cylinder, an oil tank, a first scroll spring mechanism, a second scroll spring mechanism, a hydraulic motor, differential planetary train of gearings, and a generator; wherein the energy storage cylinder comprises a hermetically sealed cylinder body, one end of the hermetically sealed cylinder body being provided with an elastic mobile device, the other end thereof being provided with an energy transmission device, and hydraulic oil is filled in the hermetically sealed cylinder body between the elastic mobile device and the energy transmission device; the hermetically sealed cylinder body, the hydraulic motor, and the oil tank are connected via an oil circuit to form a hydraulic loop; the energy transmission device is connected with the first scroll mechanism; the hydraulic motor is connected with the second scroll spring mechanism.

Multi-buffering energy storage device and application thereof

A digital clamp meter includes a common input, a voltage/resistance input, a current transformer, a voltage/resistance measuring circuit, an AC measuring circuit, a MPU and a displayer. A detecting input of the voltage/resistance measuring circuit is connected to the voltage/resistance input, a detecting output of the voltage/resistance measuring circuit is connected to a signal input of the MPU, and a controlled terminal of the voltage/resistance measuring circuit is connected to a controlling output of the MPU. The signal output of the MPU is connected to the displayer. The common input is grounded. A detecting input of the AC measuring circuit is connected to a secondary winding of the current transformer, a detecting output of the AC measuring circuit is connected to the signal input of the MPU, and a controlled terminal of the AC measuring circuit is connected to the controlling output of the MPU.

Digital clamp meter and automatic measurement method thereof

An embodiment of the present invention discloses a base station, including: a baseband unit, a radio remote unit, a power supply device, a signal transmission device, and a backup power supply device. The baseband unit and the radio remote unit are mounted on an antenna tower or a pole. At least one of the power supply device, the signal transmission device, or the backup power supply device is also mounted on the antenna tower or the pole.

Base station

Embodiments of the present invention relate to an RRU device and an assembly thereof. The RRU device includes: an enclosure, where the enclosure includes a front-end plate and a back-end plate that are respectively set on two lengthwise ends of the enclosure, multiple parallel spaced heat sinks are set on two widthwise sides of the enclosure and between the front-end plate and the back-end plate, and the front-end plate and the back-end plate extend along a widthwise direction of the enclosure by a length which is greater than a length by which the heat sinks extend; and a joint part set on the enclosure, where the joint part is used to fasten two side-by-side radio remote unit devices together.

Radio remote unit device and assembly thereof

A communications product, including at least one RRU and a fan assembly, where the fan assembly is independent of the at least one RRU, and is disposed side by side with the at least one RRU, an air duct is disposed between the fan assembly and the RRU, and an airflow passes, from the fan assembly, through the air duct, and arrives at the at least one RRU, to dissipate heat of the at least one RRU. The communications product of the present disclosure can ensure a heat-dissipation capability, and also can allow the RRU to be small in size. The present disclosure further provides a base station system that includes the communications product.

Communications product and base station system

The invention discloses a double-sided pluggable backplane, having one side on which one or more than one front backplane connector is disposed according to width of plot positions and the other side on which one or more than one rear backplane connector is disposed according to width of plot positions, the front backplane connector and the adjacent rear backplane connector being located at the same horizontal level on the double-sided pluggable backplane and staggered right-and-left in turn, meanwhile the front backplane connector and the rear backplane connector having uniform specifications and the same contact pin definitions. The double-sided pluggable backplane according to the present invention can realize interchangeability of front boards and rear boards and have no special requirements for design and manufacture of printed circuit boards and machining of the backplane.

Doubled-sided pluggable backplane

Growing community of inventors

Shenzhen, China

Chenglong Wang