公开(公告)号：US12028100B2

公开(公告)日：2024-07-02

申请号：US17757228

申请日：2020-01-06

Applicant: HUIZHOU TCL MOBILE COMMUNICATION CO., LTD.

Inventor： Hua Zhang ,  Dingning Wen ,  Yu Jia ,  Longxi Tao ,  Yanyun Zen

IPC: H04B1/10 ,  H04B1/00 ,  H04B1/40

CPC classification number: H04B1/1036 ,  H04B1/005 ,  H04B1/40

Abstract: A method and device for downlink signal transmission in a dual-connection architecture, and a terminal. The method comprises: when a first signal receiver and a second signal transmitter both operate, after a second uplink signal and a higher harmonic signal of a first uplink signal enter a first downlink and before entering the first signal receiver, using a notch filter arranged on the first downlink to filter out a signal located in a preset frequency band in the second uplink signal.

公开(公告)号：US11881880B2

公开(公告)日：2024-01-23

申请号：US17435707

申请日：2019-11-20

Applicant: HuiZhou TCL Mobile Communication Co., Ltd.

Inventor： Dingning Wen ,  Yu Jia ,  Longxi Tao ,  Hua Zhang

IPC: H04B1/04 ,  H04B1/10 ,  H03H7/00

CPC classification number: H04B1/0475 ,  H04B1/1018 ,  H04B1/1036 ,  H04B2001/0408

Abstract: Provided in the present application are a band14 signal suppression circuit and a smart terminal device being equipped with a duplexer, an active low-pass filter, and a resonant filter in a band14 transmission path, implementing filtering and suppression on the second harmonic in the band14 signal, and eliminating the interference of band14 signals on assisted global positioning system signals.

公开(公告)号：US20230006705A1

公开(公告)日：2023-01-05

申请号：US17757228

申请日：2020-01-06

Applicant: HUIZHOU TCL MOBILE COMMUNICATION CO., LTD.

Inventor： Hua Zhang ,  Dingning Wen ,  Yu Jia ,  Longxi Tao ,  Yanyun Zen

IPC: H04B1/10 ,  H04B1/00 ,  H04B1/40

Abstract: A method and device for downlink signal transmission in a dual-connection architecture, and a terminal. The method comprises: when a first signal receiver and a second signal transmitter both operate, after a second uplink signal and a higher harmonic signal of a first uplink signal enter a first downlink and before entering the first signal receiver, using a notch filter arranged on the first downlink to filter out a signal located in a preset frequency band in the second uplink signal.