公开(公告)号：US20180269912A1

公开(公告)日：2018-09-20

申请号：US15977056

申请日：2018-05-11

Applicant: MEDIATEK INC.

Inventor： Tzyuan SHIU ,  Sheng-Che TSENG ,  Shih-Chieh YEN ,  Chi-Yao YU

IPC: H04B1/12 ,  H04L27/152 ,  H04L25/03

CPC classification number: H04B1/123 ,  H04B15/06 ,  H04L25/03 ,  H04L27/152

Abstract: A method for avoiding inter-modulation distortion in a communications apparatus capable of supporting carrier aggregation and communicating with a peer communications apparatus in a wireless network via at least a first CC and a second CC includes: determining a frequency adjustment value for adjusting a first oscillating frequency of a first local oscillation signal utilized for processing an RF signal of the first CC or a second oscillating frequency of a second LO signal utilized for processing an RF signal of the second CC when an RF signal or a baseband signal of the second CC is interfered with by an inter-modulation distortion signal contributed by any signal component related to the first CC; and adjusting the first oscillating frequency or the second oscillating frequency according to the frequency adjustment value.

公开(公告)号：US20180131398A1

公开(公告)日：2018-05-10

申请号：US15465737

申请日：2017-03-22

Applicant: MEDIATEK INC.

Inventor： Tzyuan SHIU ,  Sheng-Che TSENG ,  Shih-Chieh YEN ,  Chi-Yao YU

IPC: H04B1/12 ,  H04L25/03 ,  H04L27/152

CPC classification number: H04B1/123 ,  H04B15/06 ,  H04L25/03 ,  H04L27/152

Abstract: A method for avoiding inter-modulation distortion in a communications apparatus capable of supporting carrier aggregation and communicating with a peer communications apparatus in a wireless network via at least a first CC and a second CC includes: determining a frequency adjustment value for adjusting a first oscillating frequency of a first local oscillation signal utilized for processing an RF signal of the first CC or a second oscillating frequency of a second LO signal utilized for processing an RF signal of the second CC when an RF signal or a baseband signal of the second CC is interfered with by an inter-modulation distortion signal contributed by any signal component related to the first CC; and adjusting the first oscillating frequency or the second oscillating frequency according to the frequency adjustment value.

公开(公告)号：US20170265146A1

公开(公告)日：2017-09-14

申请号：US15453956

申请日：2017-03-09

Applicant: MEDIATEK INC.

Inventor： Tzyuan SHIU ,  Tzung-Han WU ,  Shih-Chieh YEN ,  Wei-Nan SUN ,  Wei Yu LAI ,  Caiyi WANG

IPC: H04W52/24 ,  H04B17/318 ,  H04B17/345 ,  H04B17/336

CPC classification number: H04W52/241 ,  H04B17/318 ,  H04B17/336 ,  H04B17/345 ,  H04W52/0245 ,  H04W52/288 ,  Y02D70/00 ,  Y02D70/1224 ,  Y02D70/1226 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/23

Abstract: A control method for a radio frequency (RF) receiver of a user equipment (UE) and UE are provided. The control method includes the steps of detecting whether at least one blocker exists; determining a current scenario of the UE when the blocker does not exist; obtaining a signal-to-noise-ratio (SNR) target corresponding to the current scenario; and selecting an operation mode from a plurality of power modes according to the SNR target to operate the RF receiver.