公开(公告)号：US11184110B2

公开(公告)日：2021-11-23

申请号：US17086576

申请日：2020-11-02

Applicant: Imagination Technologies Limited

Inventor： Filipe Carvalho ,  Paul Murrin

IPC: H04L1/00 ,  H04L1/24

Abstract: Channel state information (CSI) scaling modules for use in a demodulator configured to demodulate a signal received over a transmission channel, the demodulator comprising a soft decision error corrector (e.g. LDPC decoder) configured to decode data carried on data symbols of the received signal based on CSI values. The CSI scaling module is configured to monitor the performance of the soft decision error corrector and in response to determining the performance of the soft decision error corrector is below a predetermined level, dynamically select a new CSI scaling factor based on the performance of the soft decision error corrector.

公开(公告)号：US20210226767A1

公开(公告)日：2021-07-22

申请号：US17203531

申请日：2021-03-16

Applicant: Imagination Technologies Limited

Inventor： Filipe Carvalho ,  Taku Yamagata

IPC: H04L7/04 ,  H04L27/26

Abstract: A synchronisation symbol detector that comprises two correlation modules and a comparison module. The first correlation module performs one or more correlations between the input signal and a down-converted version of the input signal and generates a first correlation metric from the one or more first correlations. The second correlation module performs one or more second correlations between the input signal and an up-converted version of the input signal and generates a second correlation metric from the one or more second correlations. The comparison module is configured to compare the first correlation metric and the second correlation metric and determine whether the input signal comprises a synchronisation symbol based on the comparison.

公开(公告)号：US20200007308A1

公开(公告)日：2020-01-02

申请号：US16457981

申请日：2019-06-29

Applicant: Imagination Technologies Limited

Inventor： Filipe Carvalho ,  Taku Yamagata

IPC: H04L7/04

Abstract: A synchronisation symbol detector that comprises two correlation modules and a comparison module. The first correlation module performs one or more correlations between the input signal and a down-converted version of the input signal and generates a first correlation metric from the one or more first correlations. The second correlation module performs one or more second correlations between the input signal and an up-converted version of the input signal and generates a second correlation metric from the one or more second correlations. The comparison module is configured to compare the first correlation metric and the second correlation metric and determine whether the input signal comprises a synchronisation symbol based on the comparison.

公开(公告)号：US20200007273A1

公开(公告)日：2020-01-02

申请号：US16457954

申请日：2019-06-29

Applicant: Imagination Technologies Limited

Inventor： Filipe Carvalho ,  Paul Murrin

IPC: H04L1/00 ,  H04L1/24

Abstract: Channel state information (CSI) scaling modules for use in a demodulator configured to demodulate a signal received over a transmission channel, the demodulator comprising a soft decision error corrector (e.g. LDPC decoder) configured to decode data carried on data symbols of the received signal based on CSI values. The CSI scaling module is configured to monitor the performance of the soft decision error corrector and in response to determining the performance of the soft decision error corrector is below a predetermined level, dynamically select a new CSI scaling factor based on the performance of the soft decision error corrector.

公开(公告)号：US11374733B2

公开(公告)日：2022-06-28

申请号：US17203531

申请日：2021-03-16

Applicant: Imagination Technologies Limited

Inventor： Filipe Carvalho ,  Taku Yamagata

IPC: H04L7/04 ,  H04L27/26

Abstract: A synchronisation symbol detector that comprises two correlation modules and a comparison module. The first correlation module performs one or more correlations between the input signal and a down-converted version of the input signal and generates a first correlation metric from the one or more first correlations. The second correlation module performs one or more second correlations between the input signal and an up-converted version of the input signal and generates a second correlation metric from the one or more second correlations. The comparison module is configured to compare the first correlation metric and the second correlation metric and determine whether the input signal comprises a synchronisation symbol based on the comparison.

公开(公告)号：US10985901B2

公开(公告)日：2021-04-20

申请号：US16457981

申请日：2019-06-29

Applicant: Imagination Technologies Limited

Inventor： Filipe Carvalho ,  Taku Yamagata

IPC: H04L7/04 ,  H04L27/26

Abstract: A synchronisation symbol detector that comprises two correlation modules and a comparison module. The first correlation module performs one or more correlations between the input signal and a down-converted version of the input signal and generates a first correlation metric from the one or more first correlations. The second correlation module performs one or more second correlations between the input signal and an up-converted version of the input signal and generates a second correlation metric from the one or more second correlations. The comparison module is configured to compare the first correlation metric and the second correlation metric and determine whether the input signal comprises a synchronisation symbol based on the comparison.

公开(公告)号：US20210050942A1

公开(公告)日：2021-02-18

申请号：US17086576

申请日：2020-11-02

Applicant: Imagination Technologies Limited

Inventor： Filipe Carvalho ,  Paul Murrin

IPC: H04L1/00 ,  H04L1/24

Abstract: Channel state information (CSI) scaling modules for use in a demodulator configured to demodulate a signal received over a transmission channel, the demodulator comprising a soft decision error corrector (e.g. LDPC decoder) configured to decode data carried on data symbols of the received signal based on CSI values. The CSI scaling module is configured to monitor the performance of the soft decision error corrector and in response to determining the performance of the soft decision error corrector is below a predetermined level, dynamically select a new CSI scaling factor based on the performance of the soft decision error corrector.

公开(公告)号：US10862624B2

公开(公告)日：2020-12-08

申请号：US16457954

申请日：2019-06-29

Applicant: Imagination Technologies Limited

Inventor： Filipe Carvalho ,  Paul Murrin

IPC: H04L1/00 ,  H04L1/24

Abstract: Channel state information (CSI) scaling modules for use in a demodulator configured to demodulate a signal received over a transmission channel, the demodulator comprising a soft decision error corrector (e.g. LDPC decoder) configured to decode data carried on data symbols of the received signal based on CSI values. The CSI scaling module is configured to monitor the performance of the soft decision error corrector and in response to determining the performance of the soft decision error corrector is below a predetermined level, dynamically select a new CSI scaling factor based on the performance of the soft decision error corrector.