公开(公告)号：US20240333316A1

公开(公告)日：2024-10-03

申请号：US18322639

申请日：2023-05-24

申请人： Silicon Laboratories Inc.

发明人： Sriram Mudulodu ,  Manoj Kumar Medam ,  Rambabu Katla

IPC分类号： H04B1/00 ,  H04B1/12

CPC分类号： H04B1/0028 ,  H04B1/12

摘要： A receiver includes: an analog front end (AFE) circuit to receive and process an incoming radio frequency (RF) signal comprising a packet; an analog-to-digital converter (ADC) to receive and digitize the processed incoming RF signal into a digital signal; a packet detector to detect the packet; an estimation circuit to determine a carrier frequency offset (CFO) estimate based at least in part on a preamble of the packet; an averager to determine a CFO average value for a plurality of packets communicated between a device pair combination of the receiver and a transmitter; and a compensation circuit to compensate for CFO between the device pair combination based at least in part on the CFO average value.

公开(公告)号：US20230189316A1

公开(公告)日：2023-06-15

申请号：US17547396

申请日：2021-12-10

申请人： Silicon Laboratories Inc.

发明人： Sriram Mudulodu ,  Manoj Kumar Medam ,  Rambabu Katla ,  Anil Kumar Adavally ,  Aravinth Kumar Ayyappannair Radhadevi

IPC分类号： H04W72/08

CPC分类号： H04W72/085

摘要： In one embodiment, an apparatus includes: a compensation circuit to select one of a plurality of compensation sets based on an allocated resource unit (RU) and compensate a digital complex signal using the selected compensation set; a digital-to-analog converter to convert the compensated digital complex signal to a compensated analog complex signal; a mixer coupled to the digital-to-analog converter to upconvert the compensated analog complex signal to a radio frequency (RF) signal; and a power amplifier coupled to the mixer to amplify the RF signal.