公开(公告)号：US09001701B1

公开(公告)日：2015-04-07

申请号：US13487364

申请日：2012-06-04

Applicant: Rui Zhang ,  Volvet Zhang ,  Xing Jin

Inventor： Rui Zhang ,  Volvet Zhang ,  Xing Jin

IPC: H04L12/16 ,  H04N7/12 ,  H04L25/38

CPC classification number: H04L25/38 ,  H04L41/5022 ,  H04L41/509 ,  H04L65/4084 ,  H04L65/607 ,  H04L65/80 ,  H04N7/148 ,  H04N7/152

Abstract: Techniques for assignment and signaling of the priority information within the scalable video bitstream in a switch-based conferencing system are provided. The assignment of the priority across layers is made that achieves improved user experiences in common use cases, and a signaling scheme is provided that allows the server to efficiently forward the bitstream to each receiver according to its service request and downlink conditions. The impact of uplink bandwidth changes is considered intelligently so that the server can run with very low cost/high capacity, which is important to cloud-based services. Bit fields are defined in the Real-Time Protocol (RTP) extension headers to carry the priority information.

Abstract translation: 提供了用于在基于交换机的会议系统中的可分级视频比特流内的优先级信息的分配和信令的技术。 通过跨层分配优先级，实现了普通用例中改进的用户体验，并且提供了允许服务器根据其服务请求和下行链路条件将比特流有效地转发到每个接收机的信令方案。 智能地考虑上行链路带宽变化的影响，使得服务器可以以非常低的成本/高容量运行，这对于基于云的服务是重要的。 位字段在实时协议（RTP）扩展头中定义，以承载优先级信息。