Power efficient and scalable co-packaged optical devices

    公开(公告)号:US11689289B2

    公开(公告)日:2023-06-27

    申请号:US17478095

    申请日:2021-09-17

    CPC classification number: H04B10/40 H04L1/0041 H04L1/0045 H04L27/34

    Abstract: A co-packaged optical-electrical chip can include an application-specific integrated circuit (ASIC) and a plurality of optical modules, such as optical transceivers. The ASIC and each of the optical modules can exchange electrical signaling via integrated electrical paths. The ASIC can include Ethernet switch, error correction, bit-to-symbol mapping/demapping, and digital signal processing circuits to pre-compensate and post-compensate channel impairments (e.g., inter-channel/intra-channel impairments) in electrical and optical domains. The co-packaged inter-chip interface can be scaled to handle different data rates using spectral efficient signaling formats (e.g., QAM-64, PAM-8) without adding additional data lines to a given design and without significantly increasing the power consumption of the design.

    RADIO ACCESS NETWORK CONFIGURATION FOR VIDEO APPROXIMATE SEMANTIC COMMUNICATIONS

    公开(公告)号:US20230198663A1

    公开(公告)日:2023-06-22

    申请号:US17555237

    申请日:2021-12-17

    CPC classification number: H04L1/0056 H04L1/0041 H04N19/89

    Abstract: An apparatuses for radio access network configuration for video approximate semantic communications includes a transceiver that receives from a transmitter a bitstream corresponding to a video coded data transmission wherein the received bitstream includes bitwise transmission errors and a processor that performs FEC decoding and correcting at least one bitwise transmission error of the video coded data transmission whereas at least one bitwise transmission error is left in a bit-inexact reception of the video coded data transmissions post FEC decoding, applies, by a smart video decoder in a video approximate semantic communications mode, semantic error correction to decoded video coded data transmissions to correct and conceal one or more video artifacts in response to the bit-inexact reception of the video coded data transmissions post FEC decoding, and reconstructs a video uncoded representation of concealed approximate semantic content relative to the received bitstream corresponding to the video coded data transmission.

    Signal Processing for Different Resource Unit Allocations

    公开(公告)号:US20230198658A1

    公开(公告)日:2023-06-22

    申请号:US17921485

    申请日:2020-04-28

    CPC classification number: H04L1/0008 H04L1/0041 H04L5/0044

    Abstract: A method is disclosed for a wireless transmitter device configured for orthogonal frequency division multiplexing (OFDM) transmission to a wireless receiver device using one or more allocated resource unit (RU), wherein each RU is associated with a constituent encoding padding parameter. The method comprises determining an overall encoding padding parameter, and generating—based on the determined overall encoding padding parameter—a physical layer data packet for transmission to the wireless receiver device in the allocated RU(s). When exactly one RU is allocated for transmission to the wireless receiver device, the overall encoding padding parameter is determined as the constituent encoding padding parameter of the allocated RU. When more than one RU:s are allocated for transmission to the wireless receiver device, the overall encoding padding parameter is determined as a sum of the constituent encoding padding parameters of the allocated RU:s. Corresponding method for a wireless receiver device is also disclosed, as well as corresponding apparatuses, devices and computer program product.

    Systems and methods for uplink signaling

    公开(公告)号:US11683121B2

    公开(公告)日:2023-06-20

    申请号:US17199893

    申请日:2021-03-12

    Abstract: This disclosure relates generally to wireless communications and, more particularly, to systems and methods for uplink signaling using blind channel estimation at a base station. In one embodiment, a method performed by a communication device, includes: associating a time slot with a data packet comprising a head portion and a tail portion, wherein the head portion comprises a communication device identifier and the tail portion comprises user data associated with the head portion; spreading the head portion into a first predetermined transmission format; spreading the tail portion into a second predetermined transmission format; and transmitting the spreaded head portion with the spreaded tail portion to a communication node, wherein the spreaded head portion comprises information to be used by the communication node for channel estimation and for decoding the tail portion to retrieve the user data.

Patent Agency Ranking