公开(公告)号：US20240322943A1

公开(公告)日：2024-09-26

申请号：US18575419

申请日：2021-07-02

Applicant: Nokia Solutions and Networks Oy

Inventor： Mikko Johannes Honkala ,  Dani Johannes KORPI ,  Janne Matti Juhani HUTTUNEN

IPC: H04L1/00 ,  G06N3/08

CPC classification number: H04L1/0051 ,  G06N3/08 ,  H04L1/0057

Abstract: Radio receiver devices and related methods and computer programs are disclosed. A radio signal including information bits is received at a radio receiver device. The radio receiver device determines log-likelihood ratios, LLRs, of the information bits. The determining of the LLRs is performed by applying an iterative neural network, NN, to a frequency domain representation of the received radio signal over a transmission time interval, TTI. The iterative NN includes a single processing block iteratively executable to process the frequency domain representation of the received radio signal. The iterative NN is configured to output estimates of the LLRs based on the processing results of the single processing block.

公开(公告)号：US11895618B2

公开(公告)日：2024-02-06

申请号：US17404193

申请日：2021-08-17

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuwan Su ,  Zhe Jin ,  Xiang Mi

IPC: H04W68/00 ,  H04L1/00 ,  H04L5/00

CPC classification number: H04W68/005 ,  H04L1/0051 ,  H04L5/0082 ,  H04L5/0092

Abstract: Embodiments provide a reference signal receiving and sending method. The solution is used in a plurality of cycles including a first cycle and a second cycle which each includes M first durations, and the first duration includes N paging occasions. The solution includes: determining a first target paging occasion that is in an mth first duration of the first cycle, where a relative location of the first target paging occasion in the first cycle is different from a relative location of a second target paging occasion in the second cycle, and the second target paging occasion is a target paging occasion in an mth first duration of the second cycle; determining, based on the first target paging occasion, a time domain resource that is in the mth first duration of the first cycle; and receiving or sending the reference signal on the time-frequency resource.

公开(公告)号：US11722728B2

公开(公告)日：2023-08-08

申请号：US17410985

申请日：2021-08-24

Applicant: LONTIUM SEMICONDUCTOR CORPORATION

Inventor： Hui Bian ,  Shenghui Bao ,  Jin Su ,  Sai Gao ,  Xuansheng Zhu

IPC: G06F12/00 ,  H04N21/44 ,  G06F12/0811 ,  G06F12/0831 ,  G06F12/0897 ,  H04L1/00 ,  H04N21/433 ,  H04N21/435 ,  H04N21/438 ,  H04N21/442

CPC classification number: H04N21/44008 ,  G06F12/0811 ,  G06F12/0835 ,  G06F12/0897 ,  H04L1/0051 ,  H04N21/435 ,  H04N21/4331 ,  H04N21/4383 ,  H04N21/44209

Abstract: A data processing method is applied to a digital interface, which includes: reading data cached by a data source, where the data source includes a video source and an auxiliary data source; outputting video data, if the video data cached by the video source is not empty, where when the video data is output, corresponding position marks are at start and end positions of a frame structure of the video data and at start and end positions of a row structure of the video data; and outputting auxiliary data, if the video data cached by the video source is empty, the auxiliary data cached by the auxiliary data source is not empty and the frame structure or the row structure of the video data has been output, where when the auxiliary data is output, corresponding position marks are at a start position and an end position of the auxiliary data.

公开(公告)号：US20230171026A1

公开(公告)日：2023-06-01

申请号：US17922042

申请日：2020-05-04

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Ali S. KHAYRALLAH

IPC: H04L1/00 ,  H04L1/06

CPC classification number: H04L1/0051 ,  H04L1/0631

Abstract: A method of operating a network node of a communication network includes receiving, by a first decoder of the network node, a first upstream-processed signal associated with an original signal. The method further includes receiving, by a second decoder of the network node, a second upstream-processed signal associated with the original signal. The method further includes determining, by the first decoder, a first downstream-processed signal based on the first upstream-processed signal and outputting, by the first decoder, the first downstream-processed signal. The method further includes responsive to the first decoder outputting the first downstream-processed signal, determining, by the second decoder, a second downstream-processed signal based on the second upstream-processed signal and the first downstream-processed signal and outputting, by the second decoder, the second downstream-processed signal. The method further includes determining a decoded received signal based on outputs from the first decoder and the second decoder.

公开(公告)号：US20190200376A1

公开(公告)日：2019-06-27

申请号：US16024435

申请日：2018-06-29

Applicant: ViaSat, Inc.

Inventor： Donald Wilcoxson ,  John O'Neill ,  Daniel Chester ,  Brian Sleight ,  Changping Li

IPC: H04W72/12 ,  H04W76/10 ,  H04L1/00 ,  H04L1/08 ,  H04B7/185

CPC classification number: H04W72/1257 ,  H04B7/18506 ,  H04B7/18586 ,  H04L1/0002 ,  H04L1/0009 ,  H04L1/0034 ,  H04L1/0051 ,  H04L1/08 ,  H04W76/10

Abstract: Techniques for improving data rates at mobile terminals that are subject to periodic channel interruptions in a beyond-line-of-sight communication system are disclosed, including improved encoding and decoding systems that identify blockages and modify receiver operation during blockages to reduce data errors. In certain embodiments, encoding, symbol mapping, interleaving, and use of unique periodic identifiers function to enable a series of packets that may be received in a blockage impaired channel with reduced errors.

公开(公告)号：US20180343082A1

公开(公告)日：2018-11-29

申请号：US15607260

申请日：2017-05-26

Applicant: SK Hynix Inc.

Inventor： Chenrong Xiong ,  Fan Zhang ,  Yu Cai ,  Aman Bhatia ,  Naveen Kumar ,  Abhiram Prabahkar

IPC: H04L1/00 ,  H03M13/00 ,  H03M13/11

CPC classification number: H03M13/1108 ,  H03M13/05 ,  H03M13/1111 ,  H03M13/1128 ,  H03M13/1575 ,  H03M13/255 ,  H03M13/2948 ,  H03M13/2951 ,  H03M13/3746 ,  H03M13/3753 ,  H03M13/458 ,  H03M13/616 ,  H04L1/005 ,  H04L1/0051 ,  H04L1/0057

Abstract: Techniques for improving the latency or processing performance of an error correction system are described. In an example, the error correction system implements LDPC decoding and uses an early termination rule to determine whether the LDPC decoding should be terminated prior to reaching a maximum number of iterations. The early termination rule involves various parameters that relate to the syndrome of the decoded LDPC codeword at each iteration. These parameters include the number of the current decoding iteration and the weight of the syndrome at the current iteration. For example, the early termination rule specifies that the LDPC decoding should be terminated prior to the maximum number of iterations either when the weight of the syndrome is zero, or when the current number of iterations reaches an iteration number threshold and the weight of the syndrome equals or exceeds a checksum threshold.

公开(公告)号：US20180262211A1

公开(公告)日：2018-09-13

申请号：US15913427

申请日：2018-03-06

Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES ,  Politechnica University of Timisoara ,  Ecole Nationale Superieure De L'Electronique Et Applications (ENSEA) ,  Universite De Cergy Pontoise

Inventor： Valentin SAVIN ,  Oana Boncalo ,  David Declercq

IPC: H03M13/11 ,  H03M13/00

CPC classification number: H03M13/1128 ,  H03M13/1105 ,  H03M13/1111 ,  H03M13/114 ,  H03M13/116 ,  H03M13/616 ,  H03M13/6502 ,  H04L1/0051 ,  H04L1/0057

Abstract: An in-between layer partial syndrome stopping (IBL-PS) criterion for a layered LDPC decoder. The IBL-PS syndrome is obtained by applying the parity checks (Hr,r+1) of a couple of a first layer (r) and a second layer (r+1) on the variables after the first layer has been processed and before the second layer is processed by the decoder, the decoding being stopped if said in-between layer syndrome (sr,r+1) is satisfied for at least a couple of consecutive layers.

公开(公告)号：US09973973B2

公开(公告)日：2018-05-15

申请号：US15244183

申请日：2016-08-23

Applicant: MediaTek Singapore Pte. Ltd.

Inventor： Jiye Liang ,  Wei-De Wu ,  Jinghu Chen ,  Chia-Wei Tai ,  Hsiang Sheng Hu

IPC: H04W28/22 ,  H04L5/00 ,  H04W72/04 ,  H04W24/08

CPC classification number: H04W28/22 ,  H04L1/00 ,  H04L1/0051 ,  H04L1/0061 ,  H04L1/0067 ,  H04L1/0073 ,  H04L1/203 ,  H04L5/00 ,  H04W24/08 ,  H04W72/042

Abstract: A signal processing device for communication is provided and includes a de-rate matching module, a decoder, a signal-quality generation module, and a first control module. The de-rate matching module performs a de-rate matching operation on the control signal to obtain a de-rate matching signal. The decoder performs a decoding operation on the de-rate matching signal to obtain a decoding signal. The signal-quality generation module generates at least one signal-quality indicator according to the control signal and the de-rate matching signal. The at least one signal-quality indicator includes a similarity indictor which is obtained by the signal-quality generation module performing a similarity calculation operation on the control signal and the de-rate matching signal. The first control module determines and controls whether to stop the decoding operation for the de-rate matching signal of the current control signal according to the at least one signal-quality indicator.

公开(公告)号：US09843414B2

公开(公告)日：2017-12-12

申请号：US14788150

申请日：2015-06-30

Applicant: Chris Winstead ,  Gopalakrishnan Sundararajan ,  Emmanuel Boutillon

Inventor： Chris Winstead ,  Gopalakrishnan Sundararajan ,  Emmanuel Boutillon

IPC: G06F11/10 ,  H04L1/00 ,  H03M13/43 ,  H03M13/35

CPC classification number: H04L1/0063 ,  H03M13/1108 ,  H03M13/353 ,  H03M13/3723 ,  H03M13/43 ,  H04L1/0051 ,  H04L1/0057

Abstract: For low complexity error correction, a decoder modifies each reliability metric of an input data stream with a random perturbation value. The reliability metric comprises a weighted sum of a channel measurement for the input data stream and parity check results for the input data stream. In addition, the decoder may generate an output data stream as a function of the reliability metrics.

公开(公告)号：US20170264316A1

公开(公告)日：2017-09-14

申请号：US15456315

申请日：2017-03-10

Applicant: Samsung Electronics Co., Ltd. ,  KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION

Inventor： Myeong-Woo Lee ,  Young-Kil Suh ,  Jun Heo ,  Jong-Hyun Baik

IPC: H03M13/11 ,  H04L1/20 ,  H04L1/00

CPC classification number: H03M13/1125 ,  H04L1/0051 ,  H04L1/0053 ,  H04L1/0057 ,  H04L1/0061 ,  H04L1/20

Abstract: The present disclosure relates to a pre-5th-generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4th-generation (4G) communication system such as a long term evolution (LTE). A method of a receiving apparatus in a communication system supporting a low density parity check (LDPC) code is provided. The method includes deactivating variable nodes of which absolute values of log likelihood ratio (LLR) values are greater than or equal to a first threshold value; changing LLR values of variable nodes of which absolute values of LLR values are less than a second threshold value among variable nodes other than the deactivated variable nodes to a preset value, and detecting LLR values of check nodes based on LLR values of the variable nodes other than the deactivated variable nodes.