公开(公告)号：US11909524B2

公开(公告)日：2024-02-20

申请号：US17076734

申请日：2020-10-21

Applicant: QUALCOMM Incorporated

Inventor： Xipeng Zhu ,  Xiaoxia Zhang ,  Prasad Reddy Kadiri ,  Gavin Bernard Horn ,  Alberto Rico Alvarino ,  Umesh Phuyal

IPC: H04L1/00 ,  H04W4/06 ,  H04L1/22 ,  H04L1/08

CPC classification number: H04L1/0045 ,  H04L1/0042 ,  H04L1/08 ,  H04L1/22 ,  H04W4/06

Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for efficiently retransmitting radio link control (RLC) protocol data units (PDUs) to one or more UEs. When a user equipment (UE) fails to receive or decode an RLC PDU transmitted by a base station, the UE may transmit a status PDU to the base station indicating that the UE failed to receive or decode the RLC PDU. The base station may receive the status PDU from the UE, and the base station may generate a repair PDU that includes redundant bits of the lost PDU (e.g., the PDU that the UE failed to receive or decode). The base station may then transmit the repair PDU to the UE, and the UE may use the redundant bits in the repair PDU (e.g., in combination with buffered PDUs) to attempt to correctly decode the lost PDU.

公开(公告)号：US11902029B2

公开(公告)日：2024-02-13

申请号：US17763641

申请日：2019-12-25

Applicant: INTEL CORPORATION

Inventor： Amir Rubin ,  Ehud Reshef

IPC: H04L1/1829 ,  H04L1/00 ,  H04L1/1812

CPC classification number: H04L1/1835 ,  H04L1/0045 ,  H04L1/1816

Abstract: Some demonstrative embodiments may include an apparatus including a Hybrid Automatic Repeat Request (HARQ) buffer configured to buffer compressed Log Likelihood Ratio (LLR) values corresponding to an unsuccessfully-decoded transmission of a data block, a bit size of the HARQ buffer is equal to or less than 2.5 times a supported HARQ receive (Rx) size, which is to be reported to a transmitter of the data block; and a decoder configured to decode a retransmission of the data block according to the HARQ scheme based on combined LLR values, which are based on the compressed LLR values and on LLR values corresponding the retransmission of the data block, wherein a HARQ gain of decoding the retransmission of the data block based on the combined LLR values is at least 2 Decibel (dB) for an Additive White Gaussian Noise (AWGN) channel.

公开(公告)号：US11901952B2

公开(公告)日：2024-02-13

申请号：US17885781

申请日：2022-08-11

Applicant: MARVELL ASIA PTE LTD.

Inventor： Mario R. Hueda ,  José Correa ,  Oscar E. Agazzi

IPC: H04B10/61 ,  H04L25/03 ,  H04L7/00 ,  H04L27/26 ,  H04B10/079 ,  H04L1/00 ,  H04B10/40

CPC classification number: H04B10/6162 ,  H04B10/079 ,  H04B10/615 ,  H04B10/616 ,  H04B10/6161 ,  H04B10/6165 ,  H04L1/0045 ,  H04L7/0075 ,  H04L25/03019 ,  H04L25/03159 ,  H04L27/2662 ,  H04L27/2697 ,  H04B10/40 ,  H04L27/2634

Abstract: A coherent optical receiver includes equalizer circuitry having a plurality of taps, the equalizer circuitry being configured to receive an input signal and compensate for polarization mode dispersion affecting the input signal to generate a compensated input signal. The coherent optical receiver further includes error evaluation circuitry configured to calculate a determinant of a frequency-domain (FD) coefficient-based matrix using a plurality of tap signals from among the plurality of taps, adjust an error of convergence of the compensated input signal to generate an adjusted input signal, and iteratively adjust the determinant of the FD coefficient-based matrix based on the adjusted input signal to minimize the error of convergence.

公开(公告)号：US11889428B2

公开(公告)日：2024-01-30

申请号：US17987690

申请日：2022-11-15

Applicant: Cypress Semiconductor Corporation

Inventor： Raghunatha Kondareddy

IPC: H04W52/20 ,  H04W88/06 ,  H04W72/044 ,  H04L1/00 ,  H04W76/15 ,  H04W72/0453 ,  H04W52/22 ,  H04W76/00 ,  H04W52/28 ,  H04W52/26 ,  H04W72/12

CPC classification number: H04W52/20 ,  H04L1/0045 ,  H04L1/0053 ,  H04W52/225 ,  H04W52/267 ,  H04W52/288 ,  H04W72/0453 ,  H04W72/0473 ,  H04W72/1215 ,  H04W76/00 ,  H04W76/15 ,  H04W88/06

Abstract: A method can include an integrated circuit device, determining if first communication circuits are operating in a first mode that wirelessly receives data at a first rate or a second mode that wirelessly receives data at a second rate that is lower than the first rate. If the first communication circuits are operating in the second mode, transmitting signals with the second communication circuits at a first power level, and if operating in the first mode, transmitting signals with the second communication circuits at a second power level that is lower than the first power level. In the first mode, X symbols per data bit are received and in the second mode, Y symbols per data bit are received, where X

公开(公告)号：US11876659B2

公开(公告)日：2024-01-16

申请号：US17571243

申请日：2022-01-07

Applicant: TeraWave, LLC

Inventor： Torsten Schultze

IPC: H04L27/26 ,  H04L25/03 ,  H04L27/20 ,  H04B14/06 ,  H04L27/38 ,  H04L5/00 ,  H04B1/7176 ,  H04L27/34 ,  H04L1/00 ,  H04L25/06 ,  H04L25/49 ,  H04L27/36 ,  H04L27/04

CPC classification number: H04L27/2614 ,  H04B1/7176 ,  H04B14/06 ,  H04L1/0045 ,  H04L5/0048 ,  H04L25/03834 ,  H04L25/069 ,  H04L25/4921 ,  H04L27/2017 ,  H04L27/2602 ,  H04L27/2618 ,  H04L27/2623 ,  H04L27/2627 ,  H04L27/345 ,  H04L27/3411 ,  H04L27/3494 ,  H04L27/36 ,  H04L27/366 ,  H04L27/389 ,  H04L27/04

Abstract: A data communication method in which input digital data is received and encoded into an encoded waveform having zero crossings representative of the input digital data. The encoding includes generating the encoded waveform based upon a continuous piecewise function having sinusoidal components. The continuous piecewise function may be used in generating a plurality of symbol waveforms, each of which occupies a period of the encoded waveform and represents bits of the input digital data. The plurality of symbol waveforms are defined so that a value of a phase offset used in the continuous piecewise function is different for each of the plurality of symbol waveforms, thereby resulting in each symbol waveform having a different zero crossing. An encoded analog waveform is generated from a representation of the encoded waveform and transmitted to a receiver.

公开(公告)号：US11870603B2

公开(公告)日：2024-01-09

申请号：US17567056

申请日：2021-12-31

Applicant: NXP B.V.

Inventor： Lucas Pieter Lodewijk van Dijk ,  Adrien Manfred Schoof

IPC: H04L12/40 ,  H04L1/00

CPC classification number: H04L12/40013 ,  H04L1/0041 ,  H04L1/0045 ,  H04L12/40026 ,  H04L12/40052 ,  H04L2012/40215

Abstract: A Controller Area Network (CAN) system, method, and circuit are provided with a dual mode bus line termination circuit connected between signal lines of a serial bus and optimized for both differential and single-ended communication modes over the serial bus, where the dual mode bus line termination circuit includes first and second resistance termination paths connected in parallel between first and second bus wires of the serial bus to provide an odd mode termination impedance (RODD) that matches an impedance of the serial bus when operating in the differential communication mode, and to also provide an even mode termination impedance (REVEN) that matches an impedance of the serial bus when operating in the single-ended communication mode.

公开(公告)号：US11870570B2

公开(公告)日：2024-01-09

申请号：US17581876

申请日：2022-01-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Young San Kang ,  Byoung Sul Kim ,  Soo-Hyung Kim ,  Jun-Ho Jo

IPC: H04L1/00 ,  G11C7/22 ,  H04L1/16 ,  G11C7/14 ,  H04L1/1607

CPC classification number: H04L1/0042 ,  G11C7/14 ,  G11C7/22 ,  H04L1/0045 ,  H04L1/1678

Abstract: A signal receiving device includes a sampling device configured to sample an input signal to output a plurality of sampling values, and an output circuit configured to output data based on the sampling values. The output circuit outputs the data by performing majority voting based on first to third sampling values of the sampling values in response to a first control signal, and outputs the data and first and second error count signals based on the first sampling value and fourth and fifth sampling values of the sampling values in response to a second control signal. The first error count signal is generated by comparing the first sampling value sampled under a reference condition with the fourth sampling value sampled under a first offset condition, and the second error count signal is generated by comparing the first sampling value with the fifth sampling value sampled under a second offset condition.

公开(公告)号：US20240007220A1

公开(公告)日：2024-01-04

申请号：US18467782

申请日：2023-09-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huazi ZHANG ,  Rong LI ,  Jiajie TONG ,  Xianbin WANG ,  Jun WANG ,  Wen TONG

IPC: H04L1/00 ,  H03M13/13

CPC classification number: H04L1/0041 ,  H04L1/0045 ,  H04L1/0057 ,  H03M13/13

Abstract: Embodiments of this application relate to the field of communications technologies, and provide an encoding and decoding method and apparatus, to reduce encoding/decoding complexity and improve encoding/decoding performance. In the method, a transmit device may obtain N to-be-encoded vectors. The transmit device may encode the N to-be-encoded vectors based on a polar code kernel matrix, to obtain N temporary code blocks. The transmit device may respectively perform a mask operation on target bit sequences in an (n+1)th temporary code block to an (n+M)th temporary code block and a source bit sequence segment of an nth temporary code block, to obtain M mask bit sequences. The transmit device may respectively encode the M mask bit sequences based on the polar kernel matrix, to obtain M encoded mask bit sequences. The transmit device may sum the M encoded mask bit sequences and M temporary code blocks, to obtain M first code blocks.

公开(公告)号：US11849349B1

公开(公告)日：2023-12-19

申请号：US18227940

申请日：2023-07-30

Applicant: David E. Newman ,  R. Kemp Massengill

Inventor： David E. Newman ,  R. Kemp Massengill

IPC: H04W28/04 ,  H04L1/00 ,  H04L1/20

CPC classification number: H04W28/04 ,  H04L1/0045 ,  H04L1/0061 ,  H04L1/205 ,  H04L1/206

Abstract: As transmitters proliferate, and the transmission frequency steadily increases in 5G and especially 6G, the rate of message faults will likely increase unacceptably. Disclosed are methods for wireless receivers to detect, localize, and correct message faults using a combination of signal quality, modulation quality, and an embedded error-detection code. The error-detection code can indicate when the message is corrupted, while the signal quality and modulation quality can indicate which message elements are faulted, or can provide a likelihood that each message element is faulted. The message can then be corrected, using a combination of the error-correction code, the signal quality, and the modulation quality. In embodiments, the correction can be calculated directly from the error-detection code, or determined by altering each likely faulted message element to each of the other modulation states and testing with the error-detection code. By either method, network resources are saved and reliability is increased.

公开(公告)号：US11844089B2

公开(公告)日：2023-12-12

申请号：US17645117

申请日：2021-12-20

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Jan Christoffersson ,  Mårten Ericson ,  Min Wang

IPC: H04W72/23 ,  H04L1/00 ,  H04W4/06 ,  H04W72/121 ,  H04W88/04

CPC classification number: H04W72/23 ,  H04L1/0045 ,  H04W4/06 ,  H04W72/121 ,  H04W88/04

Abstract: Group transmission of data from a group of User Equipment devices to a network node of a cellular communication system where communication between devices is effected by device-to-device technology can provide significant improvements in uplink coverage and user bit rate. However, the benefits of group transmission means that not all devices of a group have sufficient network coverage to reliably receive a grant signal scheduling uplink resources from a network node. Methods, devices and a network node are proposed that enable the dynamic selection of either a direct grant mode, in which each device receives the uplink grant directly from the network, or a relayed grant mode, in which a device acting as group coordinator relays the grant to all members of the group, to ensure optimal performance for group transmissions. The selection is dependent on at least one determined condition relating to the group of devices and/or the group transmission. The group transmission is made by the group devices and received by the network node with a delay associated with the selected grant mode.