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Millimeter wave network multi-path route backhauling method based on left bandwidth

A millimeter wave, multi-path technology used in the field of communications

Inactive Publication Date: 2017-05-10
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This ultra-dense deployment of the millimeter-wave micro-cell network has many benefits to meet the needs of improving network performance. At this time, the most critical issue is how to return the user data of the micro-cell base station to the core network, that is, the backhaul problem becomes the biggest problem. challenge

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  • Millimeter wave network multi-path route backhauling method based on left bandwidth
  • Millimeter wave network multi-path route backhauling method based on left bandwidth
  • Millimeter wave network multi-path route backhauling method based on left bandwidth

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Embodiment Construction

[0063] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0064] In millimeter-wave cellular backhaul networks, micro base stations are generally deployed on taller buildings or objects that are still. The millimeter-wave links between micro base stations are relatively stable and are not easily blocked. Therefore, the mmWave cellular backhaul network can be regarded as a static wireless network. In the present invention, the micro base station nodes connected with optical fibers in the millimeter wave backhaul network are called "gateway nodes", and the micro base station nodes not connected with optical fibers are called ordinary "wireless nodes". Assuming that there are N wireless nodes and M gateway nodes in the network, each wireless node can be divided into S sectors, and each sector consists of B beams (the specific N / M / S / B value depends on the specific The topology of the millimeter-wave backhaul netw...

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Abstract

The invention provides a millimeter wave network multi-path route backhauling method based on left bandwidth, and relates to the technical field of communications. The method comprises: performing path discovery and path maintenance by utilizing a dynamic source routing principle; when a source node detects that the bandwidth of a current route path cannot meet a node-born backhaul load, invoking a route discovery process; when the survival time of a certain established path route is shorter than a threshold, reserving and maintaining the path; and when the source node detects that the bandwidth of the current route path exceeds a threshold corresponding to the node-born backhaul load, dismounting one route path. By adopting a source route method, a problem of distributed route backhauling in a millimeter wave microcellular network is solved, a program is loaded to each node, and the process is simple and is easy to implement; relative to an on-demand routing protocol, the method largely reduces network end-to-end time delay; and the invention provides a distributed routing mode without needing of real time synchronization of a central control node and the whole network.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a backhaul routing method of a millimeter wave micro cell network. Background technique [0002] The use of millimeter wave communication technology to expand the transmission bandwidth of 5G mobile communication systems has reached a consensus in the industry. Massive MIMO technology helps millimeter wave communication to improve the spectral efficiency of 5G cellular networks, and the characteristics of millimeter wave high path loss and easy fading determine its transmission mode to be Line of Sight (LOS) propagation, which also makes its coverage As low as 50m-100m range. Therefore, the concept of millimeter-wave microcells has emerged in 5G cellular networks. This ultra-dense deployment of the millimeter-wave micro-cell network has many benefits to meet the needs of improving network performance. At this time, the most critical issue is how to return the user data of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W40/04H04W40/12H04W40/24
CPCH04W40/04H04W40/12H04W40/24
Inventor 闫中江马忠彧李波杨懋左晓亚
Owner NORTHWESTERN POLYTECHNICAL UNIV