SUPPORTING CIRCUITS WITH A SINGLE LOCAL OSCILLATOR

    公开(公告)号:US20240137032A1

    公开(公告)日:2024-04-25

    申请号:US18348972

    申请日:2023-07-06

    CPC classification number: H03M1/0607 H03M1/0626 H03M1/125

    Abstract: A digital signal processing circuit includes an analog gain compensator that compensates for an analog gain of a baseband signal including a plurality of component carriers (CCs) to output a compensated baseband signal; an analog-to-digital converter (ADC) that converts the compensated baseband signal into a first digital signal; a plurality of filtering circuits that generate a second digital signal from the first digital signal; and a control circuit. Each filtering circuit sequentially filters the first digital signal so that a corresponding one of the second digital signals retains one CC among the CCs, compensates for a digital gain, and a performs down-sampling. The control circuit generates an analog gain control signal for controlling the analog gain based on the second digital signals and a digital gain control signal for controlling the digital gain.

    WIRELESS COMMUNICATION APPARATUS INCLUDING DATA COMPRESSOR AND OPERATING METHOD OF THE WIRELESS COMMUNICATION APPARATUS

    公开(公告)号:US20230292176A1

    公开(公告)日:2023-09-14

    申请号:US18319161

    申请日:2023-05-17

    CPC classification number: H04W28/06 H04L69/04

    Abstract: A wireless communication apparatus includes a radio frequency integrated circuit (RFIC) configured to receive an input signal to generate a digital sample signal from the input signal, a data compressor configured to compress the digital sample signal according to a compression manner based on a data probability distribution of the input signal varying based on a receivable signal amplitude range of the RFIC, a data decompressor configured to decompress the compressed digital sample signal on the basis of a decompression manner corresponding to the compression manner to generate a decompressed digital sample signal, a data transfer link configured to transfer the compressed digital sample signal to the data decompressor, and a processor configured to process the decompressed digital sample signal.

    WIRELESS COMMUNICATION APPARATUS INCLUDING DATA COMPRESSOR AND OPERATING METHOD OF THE WIRELESS COMMUNICATION APPARATUS

    公开(公告)号:US20210092638A1

    公开(公告)日:2021-03-25

    申请号:US16925947

    申请日:2020-07-10

    Abstract: A wireless communication apparatus includes a radio frequency integrated circuit (RFIC) configured to receive an input signal to generate a digital sample signal from the input signal, a data compressor configured to compress the digital sample signal according to a compression manner based on a data probability distribution of the input signal varying based on a receivable signal amplitude range of the RFIC, a data decompressor configured to decompress the compressed digital sample signal on the basis of a decompression manner corresponding to the compression manner to generate a decompressed digital sample signal, a data transfer link configured to transfer the compressed digital sample signal to the data decompressor, and a processor configured to process the decompressed digital sample signal.

    SUPPORTING CIRCUITS WITH A SINGLE LOCAL OSCILLATOR

    公开(公告)号:US20240235566A9

    公开(公告)日:2024-07-11

    申请号:US18348972

    申请日:2023-07-07

    CPC classification number: H03M1/0607 H03M1/0626 H03M1/125

    Abstract: A digital signal processing circuit includes an analog gain compensator that compensates for an analog gain of a baseband signal including a plurality of component carriers (CCs) to output a compensated baseband signal; an analog-to-digital converter (ADC) that converts the compensated baseband signal into a first digital signal; a plurality of filtering circuits that generate a second digital signal from the first digital signal; and a control circuit. Each filtering circuit sequentially filters the first digital signal so that a corresponding one of the second digital signals retains one CC among the CCs, compensates for a digital gain, and a performs down-sampling. The control circuit generates an analog gain control signal for controlling the analog gain based on the second digital signals and a digital gain control signal for controlling the digital gain.

    OPERATING METHOD OF TERMINAL IN WIRELESS COMMUNICATION SYSTEM AND TERMINAL FOR PERFORMING THE METHOD

    公开(公告)号:US20200169347A1

    公开(公告)日:2020-05-28

    申请号:US16685354

    申请日:2019-11-15

    Abstract: An operating method of a terminal performing a cell search using first and second memories for buffering input samples includes detecting a first primary synchronization signal (PSS) group from a first input sample group while buffering the first input sample group in the first memory in a first interval. While buffering a second input sample group in the second memory in a second interval following the first interval, the method detects a second PSS group from the second input sample group, and a first secondary synchronization signal (SSS) group corresponding to the first PSS group from the first input sample group. While buffering a third input sample group in the first memory in a third interval following the second interval, the method detects a third PSS group from the third input sample group, and a second SSS group corresponding to the second PSS group from the second input sample group.

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