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Feedback provision using general nack report blocks and loss RLE report blocks

A technology for reporting and feedback messages, applied to electrical components, transmission systems, etc., can solve problems such as overhead, affecting reporting frequency, and affecting redundant reporting levels

Inactive Publication Date: 2007-01-31
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] If, as suggested by the 3GPP PSS framework, both received and non-received packets should be reported, it means that these reporting blocks may cause considerable overhead, so that the reserved bandwidth allocated to RTCP is not sufficient for the required may not be sufficient to report on the amount of time while ensuring coherent playout and / or required reporting redundancy
In addition, in order to enable charging and network monitoring services to proceed in parallel with triggering retransmissions, the feedback from clients receiving PSS sessions actually needs to include redundant reporting blocks (loss RLE reporting blocks), which will also generate overhead and affect reporting frequency, thereby affecting the level of redundant reporting that can be provided

Method used

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  • Feedback provision using general nack report blocks and loss RLE report blocks
  • Feedback provision using general nack report blocks and loss RLE report blocks
  • Feedback provision using general nack report blocks and loss RLE report blocks

Examples

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Embodiment Construction

[0052] figure 1 An overview of a streaming environment according to an embodiment of the present invention is shown. The streaming server 100 can provide streaming services in the form of one or more sessions to the client 101 or the mobile terminal through the wireless access network. In this example, a UMTS network comprising a Core Network 103 (CN) and a UMTS Radio Access Network 104 (UTRAN) provides a streaming packet switched service which may operate according to the requirements as defined in 3GPP TS 26.234. In order to connect the core network 103 to a packet-switched network, such as the Internet, the core network may comprise a Gateway GPRS Support Node 105 (GGSN) and a Serving GPRS Support Node 106 (SGSN). Components of the core network may be connected to a UTRAN 104 comprising at least one Radio Access Controller 107 (RNC) and at least one Node B connected to the RNC. Streaming data may be provided to mobile client 101 over a wireless link.

[0053] One aspect ...

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Abstract

The present invention relates to a method, communication terminal, a streaming server and a communication system for providing feedback for data packets of a streaming session from a client to a streaming server to enable a target number of retransmissions for each data packet within a client buffering time defining a time interval during which a data packet is stored in a buffer at the client before being processed. The at least one streaming session is provided using a RTP protocol and the RTCP protocol, wherein a fraction of the available bandwidth is allocated to RTCP packets. To specify method how compressible and detailed report blocks may be tailored to different streaming client and server implementations the present invention gradually reduces the data included in a RLE Report Block based on different mechanisms to fulfill the RTCP bandwidth constraint and to enable a target number of retransmissions for each RTP packet.

Description

technical field [0001] The present invention relates to a method of providing Real Time Control Protocol (RTCP) feedback messages from a client to a streaming server relating to data packets of at least one streaming session, wherein at least one streaming session utilizes the Real Time Transport Protocol (Real-Time Transport Protocol, RTP) protocol and RTCP protocol. Additionally, RTCP bandwidth, which is a fraction of the available streaming session bandwidth, is allocated for RTCP feedback messages. Furthermore, the present invention also relates to a client computer for performing the method in a mobile communication system. Background technique [0002] 3GPP (Third Generation Partnership Project) adopts protocols standardized by IETF (Internet Engineering Task Force) such as RTP, User Datagram Protocol (UDP), and Internet Protocol (Internet Protocol, IP) for transmission, and such as Packet-switched codecs such as Adaptive Multi-Rate (AMR) and H.264 (MPEG4 Part 10) ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06
CPCH04L65/608H04L29/06523H04L29/06517H04L29/06027H04L65/80H04L65/65
Inventor 乔斯·L·雷伊罗尔夫·哈肯伯格
Owner PANASONIC CORP
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