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Systems and methods for space-to-ground single frequency networks

A single-frequency network, air-to-ground technology, applied in the system field of air-to-ground single-frequency network, can solve problems such as damage and interference

Inactive Publication Date: 2019-09-13
ROCKWELL COLLINS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

airborne equipment with an unobstructed line of sight could therefore "see" and attempt to connect to many ground base stations, thus risking serious interference and potential disruption to sites and ground users of the network

Method used

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  • Systems and methods for space-to-ground single frequency networks
  • Systems and methods for space-to-ground single frequency networks
  • Systems and methods for space-to-ground single frequency networks

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Embodiment Construction

[0011] Before explaining in detail at least one embodiment of the inventive concepts disclosed herein, it is to be understood that the inventive concepts are not limited to the applications, implementation details, proposed components or steps, or the proposed components or steps mentioned in the following description or in the accompanying drawings. Method arrangement. In the following detailed description of embodiments of the inventive concepts herein, numerous specific details are set forth for a more thorough understanding of the inventive concepts. It will be apparent, however, to one of ordinary skill in the art having the benefit of the inventive concepts disclosed herein that the inventive concepts disclosed herein may be practiced without these specific details. In other instances, known features have not been described in detail to avoid obscuring the present disclosure. The inventive concepts disclosed herein are capable of other embodiments or of being practiced ...

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PUM

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Abstract

Systems and methods for minimizing co-channel interference to space-to-ground single frequency networks, including onboard directional, omnidirectional antenna arrays for transmission to single frequency networks (eg, LTE, HSPA) and their base stations. This directional array can surround several base stations, using the C‑RAN architecture. The system defaults to directing the array to establish or re-establish network access, identifying accessible networks and websites and monitoring the corresponding synchronized base station counts. The system can minimize co-channel interference to terrestrial network users by switching to directional arrays if the number of accessible base stations or networks is sufficiently high, or due to other factors (e.g., elevation above a threshold) . Likewise, if the base station count drops below a threshold level, the system can switch to an omni-directional array.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a system and method for an air-to-ground single-frequency network. Background technique [0002] Due to the risk of co-channel interference, commercial aircraft have so far been unable to use next-generation terrestrial wireless 3G / 4G / 5G single-frequency networks for passengers (e.g., Long Term Evolution (LTE) networks; High Speed ​​Packet Access (HSPA) networks; Wideband Code Division multiple access (WCDMA) networks). That is, the mobile device connects to the wireless network through the nearest transmitter capable of serving the device. In general, the number of base stations available for ground equipment is limited by signal attenuation and obstacles (eg, terrain, man-made features, curvature of the earth). Unrestricted on-board equipment (eg, carried by passengers) is not subject to the attenuation and obstacles. As a result, airborne equipment with unobstr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/185H04B7/155
CPCH04B7/15564H04B7/18506H04L67/12H04B7/18508H04W84/005H04W84/06
Inventor 卡尔·J·瑞切尔斯瑞安·J·科帕
Owner ROCKWELL COLLINS INC