Method, apparatus and system for processing bandwidth of passive optical network

A technology of passive optical network and processing method, applied in multiplexing system selection device, selection device, time-division multiplexing system, etc., can solve problems such as service interruption, increase upgrade network cost, etc., and reduce upgrade The effect of fees

Active Publication Date: 2009-05-20
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Replacing the entire MAC logic board will not only greatly increase the cost of upgrading the network, but will also cause the existing GPON services to be interrupted for a long time during the upgrade

Method used

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  • Method, apparatus and system for processing bandwidth of passive optical network
  • Method, apparatus and system for processing bandwidth of passive optical network
  • Method, apparatus and system for processing bandwidth of passive optical network

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Experimental program
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Embodiment Construction

[0018] In the embodiments of the present invention, in order to avoid conflicts in the allocation of time slots between PON and NGA, the third module is used to uniformly manage or coordinate the allocation of uplink time slots between GPON and NGA.

[0019] Such as image 3 As shown, at the CO side, a time slot allocation module is added between the GPON MAC and the NGA MAC to coordinate the uplink time slot allocation between the GPON and the NGA. Between the GPON MAC and the time slot allocation module, the NGA MAC and the time slot allocation module are connected through the time slot allocation information interaction interface, and perform the interaction of time slot allocation related information. The time slot allocation related information includes: clock synchronization information , the ONU bandwidth demand information collected by the OLT, and the coarse-grained bandwidth authorization information. The time slot allocation information interaction interface is res...

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Abstract

The invention relates to a method for processing the bandwidth of a passive optical network, which comprises the following steps: when a superposed uplink wave range is adopted in different concomitant access systems, distributing DBA reported information according to the dynamic bandwidth of each optical network unit ONU in the systems, unifying and coordinating uplink time slot distribution of the different systems, and distributing different uplink time slots to the different systems. The embodiment of the invention also discloses a passive optical network system and a bandwidth processor. The proposal disclosed by the embodiment of the invention does not need to replace the prior PON MAC logic board by a method for coordinating the time slot distribution related information of the prior PON and the prior NGA so that equipment for the prior network is used sufficiently, and the network upgrading cost is reduced.

Description

technical field [0001] The invention relates to the field of data communication, in particular to a bandwidth processing method, device and system of a passive optical network. Background technique [0002] As the cost of passive optical network (PON, Passive optical network) drops sharply, PON has gradually become the best choice for operators to solve the last mile problem. At present, the main PON technology is based on time division multiplexing (TDM, Time Division Multiplex), such as broadband passive optical network (BPON, Broadband PON), Ethernet passive optical network (EPON, Ethernet BasedPON), Gigabit passive Optical network (GPON, Gigabit-capable PON), etc., GPON will be used as a representative for description below. For EPON or other access network systems, the principle is similar. [0003] figure 1 It is a structural diagram of the GPON system in the prior art, such as figure 1 As shown, the GPON system mainly includes: an optical line terminal (OLT, Optica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J3/16H04J3/06H04Q11/00
Inventor 林华枫喻凡
Owner HUAWEI TECH CO LTD
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