公开(公告)号：US11750812B2

公开(公告)日：2023-09-05

申请号：US17828728

申请日：2022-05-31

申请人： TENCENT AMERICA LLC

发明人： Madhu Peringassery Krishnan ,  Xin Zhao ,  Shan Liu

IPC分类号： H04B1/66 ,  H04N19/124 ,  H04N19/85 ,  H04N19/12

CPC分类号： H04N19/124 ,  H04N19/12 ,  H04N19/85

摘要： A system includes code including first obtaining code to obtain a first syntax element that indicates a first quantization index value for an AC coefficient of an image; second obtaining code to obtain at least one second syntax element that indicates an offset value; third obtaining code to obtain a second quantization index value for another coefficient of the image; fourth obtaining code to obtain a quantization step size that corresponds to the second quantization index value that is obtained; and determining code to determine whether a mode in which the image is to be coded is a lossy mode or a lossless mode based on determining whether the first quantization index value is equal to a quantization index value associated with lossless coding, and based on determining whether the offset value is less than or equal to the quantization index value associated with the lossless coding.

公开(公告)号：US20230223996A1

公开(公告)日：2023-07-13

申请号：US17573030

申请日：2022-01-11

申请人： Charter Communications Operating, LLC

发明人： Amitav Mukherjee

IPC分类号： H04B7/0456 ,  H04B1/00 ,  H04B1/64 ,  H04B1/66

CPC分类号： H04B7/0456 ,  H04B1/0032 ,  H04B1/64 ,  H04B1/662

摘要： A communication management resource implements an iterative process to derive settings for digital precoder W, analog precoder A, and decode function D with a bandwidth-limited fronthaul link between the application of digital precoder W and the application of analog precoder A. The iterative process includes: for a first instance of digital precoder W and decode function D, optimize an instance of the analog precoder A; and based on the optimized instance of the analog precoder A, optimize a second instance of the digital precoder W and the decode function D. In one implementation, for each iteration of multiple iterations, the communication management resource: i) optimizes an instance of the analog precoder A based on an instance of the digital precoder W and the decode function D, and ii) optimizes an instance of the digital precoder W and the decode function D based on the instance of the analog precoder A.

公开(公告)号：US11570727B2

公开(公告)日：2023-01-31

申请号：US17203632

申请日：2021-03-16

申请人： AT&T Intellectual Property I, L.P.

发明人： Art Brisebois ,  Slawomir Stawiarski

IPC分类号： H04B1/66 ,  H04W52/38 ,  H04L43/0876 ,  H04W4/08

摘要： Facilitating adaptive power spectral density with chromatic spectrum optimization in advanced networks (e.g., 5G, 6G, and beyond) is provided herein. Operations of a method can comprise evaluating, by a system comprising a processor, a capture rate of mobile devices within a radio access network. The capture rate is representative of a quantity of mobile devices using a millimeter wave spectrum of the radio access network. The method also can comprise facilitating, by the system, an adjustment to a power spectral density of the radio access network based on a determination that the capture rate fails to satisfy a target capture rate of mobile devices using the millimeter wave spectrum.

公开(公告)号：US11570442B2

公开(公告)日：2023-01-31

申请号：US16893052

申请日：2020-06-04

申请人： QUALCOMM Incorporated

发明人： Kevin Pascal Andre Reuze ,  Chun-Chi Chen ,  Wei-Jung Chien ,  Han Huang ,  Marta Karczewicz ,  Vadim Seregin

IPC分类号： H04B1/66 ,  H04N19/137 ,  H04N19/119 ,  H04N19/176 ,  H04N19/132 ,  H04N19/159 ,  H04N19/105

摘要： An example video coding device is configured to: code a first set of motion information for a current block of video data partitioned into a first partition and a second partition according to a non-rectangular partition mode, the first set of motion information referring to a reference picture list and being associated with the first partition; after coding the first set of motion information, code a second set of motion information for the current block referring to the reference picture list and that is associated with the second partition; in response to the first set of motion information and the second set of motion information both referring to the reference picture list, store the second set of motion information for the current block; and predict subsequent motion information of a subsequent block of the video data that neighbors the current block using the stored second set of motion information.

公开(公告)号：US20220407567A1

公开(公告)日：2022-12-22

申请号：US17807728

申请日：2022-06-19

申请人： MaxLinear, Inc.

发明人： Sameer Madhav GANDHI ,  Praveen Ghanashyam SHEKOKAR ,  Subramanian Anantharaman CHANDRASEKARAPURAM ,  Prasenjit BHOWMIK

IPC分类号： H04B7/0426 ,  H04B1/38 ,  H04B1/66

摘要： A system for a radio access network (RAN) includes a radio unit (RU) configured to receive first in-phase and quadrature (I/Q) data represented in a first domain from a distributed unit (DU). The system includes a beamformer associated with the RU. The beamformer is configured to receive the first I/Q data represented in the first domain. The beamformer is also configured to transmit second I/Q data represented in the first domain based on the first I/Q data in the first domain. The system also includes a transceiver associated with the RU. The transceiver is configured to receive the second I/Q data represented in the first domain. The transceiver is also configured to convert the second I/Q data represented in the first domain to second I/Q data represented in a second domain.

公开(公告)号：US20220407545A1

公开(公告)日：2022-12-22

申请号：US17894349

申请日：2022-08-24

申请人： Silergy Semiconductor Technology (Hangzhou) LTD

发明人： Yan Ye ,  Xunyu Zhu

IPC分类号： H04B1/04 ,  H04B1/00 ,  H04B1/66

摘要： A frequency modulation circuit can include: a modulation circuit configured to generate a digital modulation signal and an analog modulation signal according to an input signal of the frequency modulation circuit; and a phase-locked loop having a voltage-controlled oscillator configured to receive a reference frequency, and to modulate a frequency of an output signal of the voltage-controlled oscillator according to the analog modulation signal and the digital modulation signal.

公开(公告)号：US20220394507A1

公开(公告)日：2022-12-08

申请号：US17660534

申请日：2022-04-25

申请人： Intelsat US LLC

发明人： Salim MK YAGHMOUR ,  Virgil Marvin Bernard CANNON

IPC分类号： H04W24/02 ,  H04L27/34 ,  H04B7/185 ,  H04B1/66 ,  H04W88/16 ,  H04B1/10 ,  H04H20/42 ,  H04H20/51 ,  H04H20/74

摘要： Methods and systems are provided for increasing bandwidth efficiency in satellite communications. In some embodiments, a satellite communications method is provided that comprises receiving, at a satellite and from a plurality of user ground terminals, a plurality of source signals, wherein each of the source signals are modulated according to at least one source modulation method, and further receiving, at a satellite and from a plurality of user ground terminals, a plurality of information signals corresponding to the plurality of source signals. The method further includes combining, at the satellite, the plurality of source signals into a combined source signal with an overlapping bandwidth, wherein each of the source signals are further modulated according to at least one predetermined modulation method before they are combined, and transmitting, by a downlink transmission from the satellite to a gateway ground station, the combined source signal.

公开(公告)号：US11503308B2

公开(公告)日：2022-11-15

申请号：US17282237

申请日：2019-10-01

申请人： Telefonaktiebolaget LM Ericsson (publ)

发明人： Rickard Sjöberg ,  Mitra Damghanian ,  Martin Pettersson

IPC分类号： H04B1/66 ,  H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/174 ,  H04N19/119 ,  H04N19/124 ,  H04N19/70 ,  H04N19/82

摘要： In encoding a picture, comprising a plurality of tiles, into a bit-stream, a method and apparatus is provided for signaling the tile attribute values per-tile, using a compact syntax. These embodiments signal per-tile attribute values using a loop over the tiles. The tile attributes may, for example, be in the form of a set of tile syntax elements (one syntax element per tile attribute), or for example in the form of a set of flags to enable or disable the usage of the tile attributes. These embodiments provide freedom for an encoder to assign the tile attribute values per tile, or per any subset of tiles in a picture, and the attribute values are signaled in a compact syntax using a loop (or loops) over tiles.

公开(公告)号：US11477454B2

公开(公告)日：2022-10-18

申请号：US17546507

申请日：2021-12-09

申请人： LG Electronics Inc.

发明人： Seethal Paluri ,  Seunghwan Kim ,  Jie Zhao

IPC分类号： H04B1/66 ,  H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/124 ,  H04N19/70 ,  H04N19/186 ,  H04N19/132

摘要： An image decoding method performed by a decoding apparatus according to the present document comprises the steps of: obtaining a flag indicating whether quantization parameter data for combined chroma coding is present on the basis of a type of chroma; obtaining the quantization parameter data for the combined chroma coding on the basis of the flag; deriving a chroma quantization parameter table on the basis of the quantization parameter data; deriving a quantization parameter for the combined chroma coding on the basis of the chroma quantization parameter table; deriving residual samples on the basis of the quantization parameter; and generating a reconstructed picture on the basis of the residual samples.

公开(公告)号：US11423923B2

公开(公告)日：2022-08-23

申请号：US16892180

申请日：2020-06-03

申请人： DOLBY INTERNATIONAL AB ,  DOLBY LABORATORIES LICENSING CORPORATION

发明人： Per Hedelin ,  Arijit Biswas ,  Michael Schug ,  Vinay Melkote

IPC分类号： G10L19/00 ,  G10L21/00 ,  G10L21/0232 ,  H04B1/66 ,  G10L25/18 ,  G10L21/034 ,  G10L19/008 ,  G10L19/02 ,  G10L19/032 ,  H03G7/00 ,  G10L25/45

摘要： Embodiments are directed to a companding method and system for reducing coding noise in an audio codec. A compression process reduces an original dynamic range of an initial audio signal through a compression process that divides the initial audio signal into a plurality of segments using a defined window shape, calculates a wideband gain in the frequency domain using a non-energy based average of frequency domain samples of the initial audio signal, and applies individual gain values to amplify segments of relatively low intensity and attenuate segments of relatively high intensity. The compressed audio signal is then expanded back to the substantially the original dynamic range that applies inverse gain values to amplify segments of relatively high intensity and attenuating segments of relatively low intensity. A QMF filterbank is used to analyze the initial audio signal to obtain a frequency domain representation.