Huawei Technologies Co., Limited

Guangdong Oppo Mobile Telecommunications Corp., Ltd.

Chao Ren

Weihong Xiao

Yuefeng Wu

Jian Chen

Jian Ken Song

Guoqing Xie

Jincan Cao

Kuichao Song

Dingjiu Daojian

Ke Liu

Qiaokun Huang

Juyoung Kim

Ziwei Li

An antenna subarray and a base station antenna are disclosed. The antenna subarray includes a reflection plate, a plurality of radiation surfaces, and a ground plate of the plurality of radiation surfaces. The ground plate is vertically disposed on the reflection plate, and includes an integrated bottom end structure and a plurality of branch structures. The bottom end structure is connected to the reflection plate, and a top end of a branch structure is connected to a radiation surface. A feeder layer is disposed on a side of the ground plate, and a dielectric layer is spaced between the ground plate and the feeder layer. A first polarized feeder and a second polarized feeder are disposed on the feeder layer. The ground plate may have both a 'ground' function of a polarized feeder and a “ground” function of a balun. The first polarized feeder and the second polarized feeder can implement both a function of a polarized feeder of the radiation surface and a function of a balun feeder.

Antenna subarray and base station antenna

Embodiments of this application disclose a method, an apparatus, and a system for information transmission in a PLC network. A switch control apparatus in embodiments of this application includes a switch and a coupling circuit. The coupling circuit is connected in parallel to two ends of the switch. When the switch is open, the coupling circuit transmits a first power line communication (PLC) signal to a gateway device. In embodiments of this application, when the switch is open, the PLC signal may be sent to the gateway device and information such as power off and tripping may be reported to the gateway device.

Method, apparatus, and system for information transmission in PLC network

Intelligent virtual reality glasses

A Power over Ethernet (PoE) power supply device, a PoE power supply system, an interface part, and a method for detecting an optical module, and pertaining to the field of communications technologies, where the PoE power supply device includes a photoelectric composite interface part, and wherein the photoelectric composite interface part integrates an optical interface and an electrical interface, and is configured to be coupled to a photoelectric composite module. The photoelectric composite interface part can complete PoE power supply while transmitting a signal.

POE power supply device, POE power supply system, and interface part

A method of sending a multimedia-message. The method includes: obtaining a multimedia-message to be sent; storing the multimedia-message to be sent into a cache, when a RCS of the electronic device is not online; sending the multimedia-message in the cache by a manner of instant messaging (IM), when a waiting time for transmission is less than a preset time and an online notification of the RCS is received; and sending the multimedia-message in the cache by a manner of MMS, when the waiting time for transmission reaches the preset time and the online notification of the RCS is not received.

Method, device, storage medium and electronic device for sending multimedia-message

Growing community of inventors

Guangdong, China

Chao Ren