Screen projection data transmission method and apparatus, electronic device, and storage medium

    公开(公告)号:US12113694B2

    公开(公告)日:2024-10-08

    申请号:US18549068

    申请日:2022-09-19

    IPC分类号: H04L43/0894 H04L43/0829

    CPC分类号: H04L43/0894 H04L43/0841

    摘要: Provided are a screen casting data transmission method and apparatus, an electronic device and a storage medium. The screen casting data transmission method includes: receiving feedback information which is sent by a target data reception terminal according to received screen casting data, and determining a data round-trip time of the screen casting data according to information content of a preset data transmission field in transmission control protocol (TCP) header information in the feedback information; estimating a network bandwidth according to a value change of the data round-trip time, and determining an adjustment strategy for a screen casting data encoding parameter based on a network bandwidth estimation result and a current data sending bandwidth; and adjusting the screen casting data encoding parameter, encoding to-be-sent screen casting data according to the adjusted encoding parameter, and performing transmission.

    RELIABLE DATA TRANSMISSION METHOD BASED ON RELIABLE UDP AND FOUNTAIN CODE IN AERONAUTICAL AD HOC NETWORKS

    公开(公告)号:US20190190542A1

    公开(公告)日:2019-06-20

    申请号:US16219868

    申请日:2018-12-13

    摘要: This invention discloses a kind of reliable data transmission method based on reliable UDP and fountain code in aeronautical ad hoc networks. This method employs Raptor codes to recover from data loss and avoid retransmission in high loss and high delay channels. A light-weight feedback scheme is designed to provide reliability. An improved SNACK scheme is utilized to deal with the bandwidth asymmetric problem and a novel sliding window mechanism is proposed to avoid TCP's retransmission ambiguity problem and allow for more precise roundtrip-time calculation. A congestion control scheme is deployed to distinguish losses caused by congestion from losses caused by link handoffs to efficiently utilize the available bandwidth. This invention is fully implemented directly on top of UDP in Linux without requiring changes to the underlying network stack implementations. In harsh aeronautical ad hoc network environment, it is suitable for reliable and efficient data transfer service.