公开(公告)号：US20180331716A1

公开(公告)日：2018-11-15

申请号：US15770969

申请日：2016-04-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Heping ZHANG ,  Jian CHEN ,  Guangsheng PAN ,  Dingjie WANG ,  Hugen QIN

IPC: H04B1/56 ,  H04B1/00

CPC classification number: H04B1/00 ,  H04B1/0057 ,  H04B1/006 ,  H04B1/52

Abstract: Example radio frequency front ends, terminal devices, and carrier aggregation methods are provided. In one example, the radio frequency front end includes: P transmit branches, each transmit branch includes at least one transmit filter, N receive branches, where each receive branch includes at least one receive filter, and a switch circuit having L input ports and at least one output port, where the at least one output port is connected to an antenna or a back end circuit of an antenna, and where the L input ports are used to simultaneously connect a transmit branch of the P transmit branches and a receive branch of the N receive branches, where the transmit branch and the receive branch are corresponding to a same frequency band.

公开(公告)号：US20190327684A1

公开(公告)日：2019-10-24

申请号：US16462943

申请日：2017-02-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yajun WANG ,  Zhongying LONG ,  Chonglu CHEN ,  Guangsheng PAN ,  Heping ZHANG

IPC: H04W52/02 ,  H04B17/318 ,  H04W4/80 ,  H04B1/04

Abstract: The communication method includes: obtaining a received signal strength indicator RSSI; comparing the obtained RSSI with a predetermined value; determining a Bluetooth transmission link based on a comparison result, where the Bluetooth transmission link includes a first transmission link and a second transmission link, where the first transmission link is a transmission link of an internal power amplifier of a Bluetooth module, and the second transmission link is a transmission link of a combination of the internal power amplifier of the Bluetooth module and an external power amplifier of the Bluetooth module; and transmitting a Bluetooth signal based on the determined Bluetooth transmission link. According to the present invention, the RSSI value of the Bluetooth device is detected, the detected RSSI value is compared with the predetermined value, and the transmission link of the Bluetooth device is determined based on the comparison result.