公开(公告)号：US20180372883A1

公开(公告)日：2018-12-27

申请号：US15775435

申请日：2015-11-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhongying LONG ,  Shuhui SUN ,  Guangsheng PAN ,  Dingjie WANG ,  Wanji AN ,  Lina CHEN

IPC: G01S19/26

Abstract: Embodiments of the present disclosure relate to methods and terminals for improving GPS performance. One example method includes detecting a placement state of the terminal and opening a receiving channel corresponding to the placement state. The receiving channel can be used to receive signals sent by K satellites. A signal receiving channel corresponding to the terminal is selected according to the state of the terminal.

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.