Dynamic time window and cache mechanism under the heterogeneous network transmission

US10313738B2 · kind B2 · utility

Assignee

• Shanghai Jiao Tong University · CN

Inventors

• Yiling Xu · Shanghai, CN
• Wenjun Zhang · Sha Tin, CN
• Chengzhi Wang · Lo Wu, CN
• Jun Sun · Shanghai, CN
• Yunfeng Guan · Shanghai, CN
• Dazhi He · Shanghai, CN
• Ning Liu · Shenyang, CN

Key dates

• Filing date: Feb 2, 2016
• Grant date: Jun 4, 2019
• Expiry date: Feb 2, 2036

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04N21/64322
• WIPO field: Audio-visual technology
• WIPO sector: Electrical engineering

Abstract

A dynamic time window and cache method under the heterogeneous network transmission is provided, including adding Available_Time and Asset_Size attributes of the media content in the signaling or other places for the existing signaling at a MMT, so that the client terminal gets the time when the corresponding media content is available and the size of the media content; at the same time determining the network bandwidth and the network delay of the content from the broadband to the client under the current broadband network by the client; wherein the client terminal calculates the time interval for transmitting a request for caching in advance and the size of a cache window required by the terminal through the available time of the content of a broadband source and the delay of a broadband channel.