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Network resource-reserving apparatus and method

A technology of network resources and network resource information, applied in the field of network resource reservation devices, can solve the problems of image quality deterioration and the like

Inactive Publication Date: 2005-08-24
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, when a stream of moving picture data is flowing, the image quality of the head portion of the moving picture deteriorates

Method used

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  • Network resource-reserving apparatus and method
  • Network resource-reserving apparatus and method
  • Network resource-reserving apparatus and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0046] FIG. 1 is an illustration of a system according to Embodiment 1 of the present invention. In FIG. 1, communication terminals 100, 101, 200, and 201 do not correspond to RSVP. Edge routers 301, 302, and 303 correspond to RSVP.

[0047] Communication terminals 100 and 101 are connected to edge router 301 , communication terminal 200 is connected to edge router 302 , and communication terminal 201 is connected to edge router 303 . The edge router 301 is connected to the edge routers 302 and 303 via the router 400 corresponding to RSVP.

[0048]In this system, consider a case where a flow to be quality assured flows from communication terminal 100 to communication terminal 200 via edge router 301 , router 400 , and edge router 302 . At this time, the range of the network for reserving network resources and performing quality assurance is the range from the edge router 301 to the edge router 302 .

[0049] FIG. 2 is a functional block diagram of the edge router 301 . Not...

Embodiment approach 2

[0134] FIG. 15 is an illustration of a system according to Embodiment 2 of the present invention. In FIG. 15, communication terminals 100, 200, and 201 do not support IEEE802.11e network resource reservation. The wireless relay devices 701 to 703 are connected by a wireless communication method of IEEE802.11e, and correspond to network resource reservation of IEEE802.11e. Communication terminals 100, 200, 201 are connected to wireless relay devices 701, 702, 703, respectively.

[0135] In such a system, a case where a quality assurance target stream flows from communication terminal 100 to communication terminal 200 via wireless relay device 701 and wireless relay device 702 is considered. At this time, the section of the network where network resources are reserved is the wireless communication section from the wireless relay device 701 to the wireless relay device 702 . In Embodiment 2, for the input streams not registered in the stream characteristic table 507 in Embodime...

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Abstract

A measurement of an input flow is measured at an edge router 301 even though the user does not set the reservation of the network resource at the edge router 301. The reservation of the network resource required for the input flow becomes possible by maintaining characteristic information of the input flow, and a quality assurance of the flow from a communication terminal 100 which does not correspond to the reservation of the network resource is achieved.

Description

technical field [0001] The present invention relates to a network resource reservation device and method thereof used in a network supporting reservation of network resources (hereinafter simply referred to as 'reservation'). Background technique [0002] A certain QoS (Quality of Service) technology utilizes the reservation of network resources in the IP network to ensure the service quality of communication. [0003] As a protocol for such a network resource reservation, RSVR (Resource Reservation Protocol) standardized by IETF (Internet Engineering Task Force), a standardization organization of Internet technology, is used. Using this RSVP, when reserving network resources (transmission band, etc.) in the path from the sending server to the receiving client, regardless of the load status of the transmission path, discarding of packets constituting the stream data to be transmitted, packet delay, etc. are suppressed Within a certain range to ensure the quality of service....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/26H04L12/56H04L29/06
CPCH04L47/822H04L47/10H04L12/5695H04L47/724H04L47/762H04L47/805H04L47/15H04L47/2441H04B2203/5445H04L47/2483H04L47/70
Inventor 酒田善史川口雄一
Owner PANASONIC CORP
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