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User device node, server node and method for performing file repair process

A technology of server nodes and user equipment, applied in the direction of electrical components, data exchange details, generation of response errors, etc., can solve problems such as low efficiency methods

Active Publication Date: 2019-02-26
ERICSSON (CHINA) COMMUNICATION COMPANY LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] While this random distribution of file repair requests helps prevent system failures due to overload, the mechanism still has the disadvantage of being an inefficient way of handling file repair requests

Method used

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  • User device node, server node and method for performing file repair process
  • User device node, server node and method for performing file repair process
  • User device node, server node and method for performing file repair process

Examples

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Embodiment Construction

[0024] Embodiments of the present invention aim to provide an improved file repair process. Embodiments are based on a server node, such as a Broadcast Multicast Service Center (BM-SC), which is able to determine when the BM-SC is done delivering the How many users (user device nodes) before a specific file will perform the file repair process. As will be described in further detail in various embodiments below, the BM-SC can decide to enable point-to-multipoint by receiving information from the user equipment node in the form of a delivery missing report when the user equipment node joins the channel to receive a particular file delivery. File repair process.

[0025] Embodiments of the invention are thus based on defining an interface between a user equipment node and a BM-SC node, whereby a user equipment node, when joining a broadcast service, e.g. Threshold to report delivery missing status information. Delivery-absence status information (eg, in the form of a delivery...

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PUM

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Abstract

The user equipment node, upon determining that the data loss in the requested file is above or likely to be above the threshold, transmits a delivery missing report to the server node indicating that the data loss in the requested file is above the threshold. The missing delivery reports are used by the server node to determine whether the multicast file repair procedure should be enabled based on the number of missing delivery reports it has received from other user equipment nodes. This allows for faster enabling of the point-to-multipoint file repair process and prevents a large number of point-to-point file repairs.

Description

technical field [0001] The invention relates to user equipment nodes, server nodes and methods performed in such nodes for performing file repair procedures. Background technique [0002] In current video and file delivery solutions, almost all mobile operators support and use the unicast mode of delivering files to users. Unicast is sending data to a single network destination identified by a unique address. Unicast is triggered by end users when a data file is requested, and file delivery from server nodes occupies dedicated radio resources. Such networks are Figure 1a shown in , where a server node 101 (or sender) transmits a data file to a user equipment node (or receiver) 103 via one or more intermediate nodes 105 1 to 103 N . As can be seen, the file is delivered in unicast mode so that it is being delivered to the user equipment node 103 1 and 103 2 The same file is transferred twice in parallel between some nodes. In mobile networks, radio resources are limit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/18
CPCH04L12/1868H04L12/189H04L65/611G06F11/0709G06F11/076G06F11/0793H04L65/1069H04L67/06H04L67/10
Inventor 陈琨凌捷谢锦扬
Owner ERICSSON (CHINA) COMMUNICATION COMPANY LTD
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