Path optimization method for mobile backhaul network

Abstract

The embodiment of the invention discloses a path optimization method of a mobile backhaul network. The method comprises the following steps: when a network analysis device obtains first link data of each link of a mobile backhaul network, the physical bandwidth of each port and the flow data of each link in a preset time period,calculating a proportion according to the physical bandwidth of each port and the flow data of each link in a preset time period, and when judging whether the link is a congested link according to the proportion, adding a congestion identifier in the first link data corresponding to the congested link to form second link data; sending the second link data and the third link data to an SDN controller, and for each congested link, when an output node and a target nodeof the first link data and the third link data in the second link data of each congested link and the target service data of the to-be-optimized path in the congested link determine that there is anavailable idle new path, selecting the path conforming to the condition and sending the path to the network management device. The embodiment of the invention can automatically and dynamically optimize the network path.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of communications, and in particular, to a path optimization method for a mobile backhaul network. Background technique [0002] At present, the mainstream mobile backhaul network solutions are PTN (Telecommunication Network) and IP RAN (IP Radio Access Network). Among them, PTN adopts static tunnel (LSP), and the LSP path is calculated by the network management, while IP RAN adopts dynamic tunnel, and RSVP - Calculate LSP paths for protocols such as TE / LDP. [0003] For the mobile backhaul network based on IP RAN technology, since the LSP path is calculated by the protocol, although it is more flexible, after the path is calculated, the service data can only be transmitted according to this path, which cannot be controlled or adjusted manually, which will easily lead to service imbalance In other words, there are many services passing through some links, but less services passing ...

AI Technical Summary

Problems solved by technology

[0006] 1. The 5G wireless and core network is a cloud-based network. The 5G service bearer includes fronthaul, midhaul and backhaul. The business connection relationship is more complicated, the business traffic is large, the business flow direction and tidal effect are more complicated, and it is difficult to plan manually. For the traffic of the network, the existing static configuration method (the path configuration method adopted by the mobile backhaul network of the above-mentioned PTN and IP RAN technology) is difficult to meet the demand

[0007] 2. If the 5G bearer Xn route is still planned according to the original path, if the aggregation ring link is congested due to burst traffic, the transmission delay will be increased because the path cannot be adjusted;

[0008] 3. 5G is not only a mobile backhaul network, but also an Internet of Everything network, which requires the bearer network to flexibly adapt to service changes. Neither static configuration nor fixed protocol path calculation rules can provide intelligent service paths. Optimal Adjustment Ability

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