公开(公告)号：US09853752B2

公开(公告)日：2017-12-26

申请号：US15087037

申请日：2016-03-31

Applicant: NXP B.V.

Inventor： Jingfeng Ding ,  Helmut Kranabenter ,  Stefan Mendel ,  Gernot Hueber ,  Josef Zipper

IPC: H04B17/00 ,  H04B17/318

CPC classification number: H04B17/318 ,  H03M1/181 ,  H04W52/245 ,  H04W52/52

Abstract: Embodiments of a method and a system for generating a received signal strength indicator (RSSI) value that corresponds to a radio frequency (RF) signal are disclosed. In an embodiment, a method for generating an RSSI value that corresponds to an RF signal involves obtaining an attenuation factor code in response to applying an automatic gain control (AGC) operation to the RF signal, obtaining an analog-to-digital converter (ADC) code in response to applying an ADC operation to a signal that results from the AGC operation, and combining the attenuation factor code and the ADC code to generate an RSSI value. Other embodiments are also described.

公开(公告)号：US09742443B2

公开(公告)日：2017-08-22

申请号：US14847810

申请日：2015-09-08

Applicant: NXP B.V.

Inventor： Stefan Mendel ,  Thomas Noisternig ,  Jingfeng Ding ,  Erich Merlin ,  Michael Stark

IPC: H04B1/04 ,  H04W4/00 ,  G06K19/07 ,  H04B5/00 ,  H04L25/00 ,  H04L25/03 ,  G06K7/10

CPC classification number: H04B1/04 ,  G06K7/10237 ,  G06K19/0723 ,  H04B5/0031 ,  H04L25/00 ,  H04L25/03006 ,  H04W4/80

Abstract: Transients caused by load modulation can fee compensated far by adjusting pulse shapes. A radio frequency (RP) carrier signal can be modulated using load modulation. For the modulated RF carrier signal a particular pattern can be detected for a symbol period that precedes a second symbol that does not use load modulation. In response to the detecting, a pulse shape of the first symbol can be adjusted to mitigate the transients.