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公开(公告)号：US10856177B2
公开(公告)日：2020-12-01
申请号：US16430757
申请日：2019-06-04
Applicant: Parallel Wireless, Inc.
Inventor： Ajay Sharma , Somasekhar Pemmasani
Abstract: A receiver performing a half cyclic prefix (CP) shift on received subframes is disclosed, comprising: an analog to digital conversion (ADC) module; a cyclic prefix (CP) removal module coupled to the ADC module configured to retain a portion of cyclic prefix samples; a fast Fourier transform (FFT) module configured to receive samples from the cyclic prefix removal module, and to perform a FFT procedure on the received samples using a FFT window, the FFT window being shifted ahead based on the retained portion of cyclic prefix samples, to output an orthogonal frequency division multiplexed (OFDM) symbol; and a rotation compensation module coupled to the FFT module, the rotation compensation module configured to perform phase de-rotation of the OFDM symbol.
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公开(公告)号：US11825340B2
公开(公告)日：2023-11-21
申请号：US17109136
申请日：2020-12-01
Applicant: Parallel Wireless, Inc.
Inventor： Ajay Sharma , Somasekhar Pemmasani
CPC classification number: H04W28/04 , H04L5/0007 , H04L25/0202 , H04L27/2607 , H04L27/2665 , H04L27/2678 , H04L27/2691
Abstract: A receiver performing a half cyclic prefix (CP) shift on received subframes is disclosed, comprising: an analog to digital conversion (ADC) module; a cyclic prefix (CP) removal module coupled to the ADC module configured to retain a portion of cyclic prefix samples; a fast Fourier transform (FFT) module configured to receive samples from the cyclic prefix removal module, and to perform a FFT procedure on the received samples using a FFT window, the FFT window being shifted ahead based on the retained portion of cyclic prefix samples, to output an orthogonal frequency division multiplexed (OFDM) symbol; and a rotation compensation module coupled to the FFT module, the rotation compensation module configured to perform phase de-rotation of the OFDM symbol.
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公开(公告)号：US20190253293A1
公开(公告)日：2019-08-15
申请号：US16378850
申请日：2019-04-09
Applicant: Parallel Wireless, Inc.
Inventor： Ajay Sharma , Somasekhar Pemmasani
CPC classification number: H04L27/265 , H04J11/005 , H04L5/0051 , H04L25/022 , H04L25/0224 , H04W72/1231
Abstract: A method for measuring channel quality in a wireless transceiver is disclosed, comprising: receiving, at a wireless transceiver, an analog signal from a user equipment (UE); converting the analog signal to a plurality of digital samples at an analog to digital converter (ADC); performing a fast Fourier transform (FFT) on the plurality of digital samples to generate frequency domain samples; identifying an uplink demodulation reference signal (DMRS) symbol; performing channel estimation on the DMRS symbol to identify an estimate of channels; creating a noise covariance matrix from the estimate of channels; and deriving an interference measure from the noise covariance matrix.
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公开(公告)号：US10257008B2
公开(公告)日：2019-04-09
申请号：US15484121
申请日：2017-04-10
Applicant: Parallel Wireless, Inc.
Inventor： Ajay Sharma , Somasekhar Pemmasani
Abstract: A method for measuring channel quality in a Long Term Evolution (LTE) transceiver is disclosed, comprising: receiving, at a Long Term Evolution (LTE) wireless transceiver, an analog signal from a user equipment (UE); converting the analog signal to a plurality of digital samples at an analog to digital converter (ADC); performing a fast Fourier transform (FFT) on the plurality of digital samples to generate frequency domain samples; identifying an uplink demodulation reference signal (DMRS) symbol; performing channel estimation on the DMRS symbol to identify an estimate of channels; creating a noise covariance matrix from the estimate of channels; and deriving an interference measure from the noise covariance matrix.
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公开(公告)号：US11943050B2
公开(公告)日：2024-03-26
申请号：US17874257
申请日：2022-07-26
Applicant: Parallel Wireless, Inc.
Inventor： Mudassar Khan , Ajay Sharma , Somasekhar Pemmasani
CPC classification number: H04L1/0061 , H04L1/0045 , H04W80/02 , H04W80/04 , H04W80/08
Abstract: This disclosure introduces an advancement to the error indication message to provide detailed information about errors in configurations that are arriving from the Layer 2 to the Layer 1. A method is disclosed, comprising: performing physical layer control (PHY) of a wireless signal at a Layer 1 (L1) software module; performing medium access control (MAC) of the wireless signal at a Layer 2 (L2) software module; providing an application programming interface between the L1 software module and the L2 software module for receiving L1 configuration messages and providing error codes to the L2 software module; receiving a L1 configuration message at a Layer 1 software module; and providing an enhanced error code progressively from a L1 software module to the Layer 2 (L2) software module.
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Patent Agency Ranking
公开(公告)号：US20190342792A1
公开(公告)日：2019-11-07
申请号：US16430757
申请日：2019-06-04
Applicant: Parallel Wireless, Inc.
Inventor： Ajay Sharma , Somasekhar Pemmasani
Abstract: A receiver performing a half cyclic prefix (CP) shift on received subframes is disclosed, comprising: an analog to digital conversion (ADC) module; a cyclic prefix (CP) removal module coupled to the ADC module configured to retain a portion of cyclic prefix samples; a fast Fourier transform (FFT) module configured to receive samples from the cyclic prefix removal module, and to perform a FFT procedure on the received samples using a FFT window, the FFT window being shifted ahead based on the retained portion of cyclic prefix samples, to output an orthogonal frequency division multiplexed (OFDM) symbol; and a rotation compensation module coupled to the FFT module, the rotation compensation module configured to perform phase de-rotation of the OFDM symbol.
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公开(公告)号：US20190199476A1
公开(公告)日：2019-06-27
申请号：US16196763
申请日：2018-11-20
Applicant: Parallel Wireless, Inc.
Inventor： Mudassar Khan , Ajay Sharma , Somasekhar Pemmasani
IPC: H04L1/00
Abstract: This disclosure introduces an advancement to the error indication message to provide detailed information about errors in configurations that are arriving from the Layer 2 to the Layer 1. A method is disclosed, comprising: performing physical layer control (PHY) of a wireless signal at a Layer 1 (L1) software module; performing medium access control (MAC) of the wireless signal at a Layer 2 (L2) software module; providing an application programming interface between the L1 software module and the L2 software module for receiving L1 configuration messages and providing error codes to the L2 software module; receiving a L1 configuration message at a Layer 1 software module; and providing an enhanced error code progressively from a L1 software module to the Layer 2 (L2) software module.
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公开(公告)号：US11528175B2
公开(公告)日：2022-12-13
申请号：US17183337
申请日：2021-02-23
Applicant: Parallel Wireless, Inc.
Inventor： Ajay Sharma , Somasekhar Pemmasani
Abstract: A method for measuring channel quality in a wireless transceiver is disclosed, comprising: receiving, at a wireless transceiver, an analog signal from a user equipment (UE); converting the analog signal to a plurality of digital samples at an analog to digital converter (ADC); performing a fast Fourier transform (FFT) on the plurality of digital samples to generate frequency domain samples; identifying an uplink demodulation reference signal (DMRS) symbol; performing channel estimation on the DMRS symbol to identify an estimate of channels; creating a noise covariance matrix from the estimate of channels; and deriving an interference measure from the noise covariance matrix.
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公开(公告)号：US20200244497A1
公开(公告)日：2020-07-30
申请号：US16848744
申请日：2020-04-14
Applicant: Parallel Wireless, Inc.
Inventor： Ajay Sharma , Somasekhar Pemmasani
Abstract: A method for measuring channel quality in a wireless transceiver is disclosed, comprising: receiving, at a wireless transceiver, an analog signal from a user equipment (UE); converting the analog signal to a plurality of digital samples at an analog to digital converter (ADC); performing a fast Fourier transform (FFT) on the plurality of digital samples to generate frequency domain samples; identifying an uplink demodulation reference signal (DMRS) symbol; performing channel estimation on the DMRS symbol to identify an estimate of channels; creating a noise covariance matrix from the estimate of channels; and deriving an interference measure from the noise covariance matrix.
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公开(公告)号：US10313922B2
公开(公告)日：2019-06-04
申请号：US15489722
申请日：2017-04-17
Applicant: Parallel Wireless, Inc.
Inventor： Ajay Sharma , Somasekhar Pemmasani
Abstract: A Long Term Evolution (LTE) receiver performing a half cyclic prefix (CP) shift on received subframes is disclosed, comprising: an analog to digital conversion (ADC) module; a cyclic prefix (CP) removal module coupled to the ADC module configured to retain a portion of cyclic prefix samples; a fast Fourier transform (FFT) module configured to receive samples from the cyclic prefix removal module, and to perform a FFT procedure on the received samples using a FFT window, the FFT window being shifted ahead based on the retained portion of cyclic prefix samples, to output an orthogonal frequency division multiplexed (OFDM) symbol; and a rotation compensation module coupled to the FFT module, the rotation compensation module configured to perform phase de-rotation of the OFDM symbol.
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