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Connection admission control (CAC) method and device as well as passive optical network (PON) system

A technology of connection admission control and resource admission control, applied in the field of communication

Active Publication Date: 2011-08-03
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Embodiments of the present invention provide a connection admission control method, device, and optical line terminal, aiming to solve the problem of connection admission control of different bandwidth channels under the same physical port

Method used

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  • Connection admission control (CAC) method and device as well as passive optical network (PON) system
  • Connection admission control (CAC) method and device as well as passive optical network (PON) system
  • Connection admission control (CAC) method and device as well as passive optical network (PON) system

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Embodiment Construction

[0029] In order to make the objectives, technical solutions and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Here, the exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but not to limit the present invention.

[0030] The embodiment of the present invention provides a connection admission control method, such as figure 1 As shown, the method includes:

[0031] Step 101, the optical line terminal receives the multicast on-demand request sent by the optical network unit, and the multicast on-demand request includes the identification of the optical network unit and the information of the on-demand program;

[0032] Step 102, the optical line terminal determines the virtual port where the optical network unit is located, or the physical port and sub-channel where the optical network unit is ...

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Abstract

The embodiment of the invention provides a connection admission control (CAC) method and device as well as a passive optical network (PON) system. In the method, an optical line terminal receives a multicast on-demand request sent by an optical network unit (ONU), wherein the multicast on-demand request comprises the identification of the ONU and the on-demand program information; according to the identification of the ONU, a virtual port or a physical port and a sub channel in which the ONU is positioned can be determined; whether the program is in an on-demand state is judged for the ONU under the virtual port or the sub-channel of the physical port in which the ONU is positioned; and if so, the ONU is permitted to access. According to the embodiment of the invention, the CAC of channels with different bandwidths can be performed under the same physical port, thus the bandwidth range is not exceeded, and the resources are not wasted.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular, to a connection admission control method, device and passive optical network system. Background technique [0002] IP Television (IPTV, IP Television) is a high-bandwidth service. In order to ensure the quality of video services in the case of limited network bandwidth, it is necessary to deploy Resource Management (RM, Resource Management) and Connection Admission Control (CAC, Connection Admission Control) in the network. )Function. The IPTV service includes multicast / broadcast video (such as live video, BTV, Broadcast Television) and unicast video (such as video on demand, VOD, Video On Demanding). [0003] Multicast CAC is generally completed locally at the access node (AN, Access Node). The AN determines whether the bandwidth of the user link meets the bandwidth requirements of the channel requested to join, or whether the number of channels the user join...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q11/00H04L12/18
CPCH04L12/1881H04L12/1859H04L47/70H04L47/806
Inventor 郑伟江刘建平黄斌吴明晓
Owner HUAWEI TECH CO LTD