METHOD AND SYSTEM FOR END-TO-END QOS GUARANTEED CONTENT DELIVERY ON SERVICE OVERLAY NETWORK

摘要

PURPOSE: An end-to-end QoS(Quality of Service) guaranteed content delivery method in a service overlay network and a system thereof are provided to define the related parameters and explain in detail about the protocols for delivering end-to-end QoS guaranteed evolved contents, thereby guaranteeing the QoS contents delivery. CONSTITUTION: A content delivery requesting unit(31) forwards a content delivery request to a content position searching unit(32). The content position searching unit searches the position of the corresponding content according to the content delivery request from the content delivery requesting unit. The content storing and caching unit(33) stores or caches the corresponding content. A content position update unit(34) updates a content position according to the change of the position of the corresponding content. A QoS requirement delivery unit(35) delivers a QoS requirement to a content delivery channel setting unit(36). The content delivery channel setting unit sets the content delivery channel according to the QoS requirement from the QoS requirement delivery unit. A transport QoS applying unit(37) determines a content delivery path using QoS related delivery information from an underlying network. A content delivery unit(38) delivers contents through the content delivery path determined by the transport QoS applying unit. [Reference numerals] (31) Content delivery requesting unit; (32) Content position searching unit; (33) Content storing and caching unit; (34) Content position update unit; (35) QoS requirement delivery unit; (36) Content delivery channel setting unit; (37) Transport QoS applying unit; (38) Content delivery unit;