Airfield multilateration system with private 5G cellular network

1 . An airfield multilateration system ( 10 ) for detecting airfield traffic, the airfield multilateration system comprising a plurality of airfield surveillance units ( 11 ), each of the plurality of airfield surveillance units comprising:

a power supply module ( 113 ),

a first radio antenna ( 111 ) configured to receive an aircraft transponder signal,

a receiver module ( 112 ) coupled to the power supply module ( 113 ) and configured to be coupled to the first radio antenna ( 111 ) and comprising a first data communication port ( 1122 , 1123 ),

wherein the receiver module ( 112 ) is operable to convert the aircraft transponder signal received by the first radio antenna ( 111 ) for transmission via the first data communication port, wherein the converted aircraft transponder signal allows for determining a position of a corresponding aircraft via multilateration,

wherein each of the plurality of airfield surveillance units further comprises:

a second radio antenna ( 118 ) configured to receive and transmit 5G radio signals, and

a 5G communication module ( 117 ) coupled to the power supply module ( 113 ) and configured to be coupled to the second radio antenna and operable to process 5G radio signals received or transmitted by the second radio antenna,

wherein the airfield multilateration system further comprises a central processing unit ( 12 ) operable for data communication with the plurality of airfield surveillance units ( 11 ), the central processing unit comprising a computing module ( 121 ) operable to determine an aircraft position based on the aircraft transponder signal received by multiple ones of the plurality of airfield surveillance units,

a wired data communication line ( 13 ),

wherein the 5G communication modules ( 117 ) of the plurality of airfield surveillance units ( 11 ) are configured to form a private 5G cellular network, and

wherein the central processing unit ( 12 ) is operable for data communication with the plurality of airfield surveillance units ( 11 ) selectively through the 5G cellular network and through the wired data communication line.

2 . The airfield multilateration system of claim 1 , wherein the receiver module ( 112 ) and the 5G communication module ( 117 ) of each of the plurality of airfield surveillance units are operably coupled for data communication.

3 . The airfield multilateration system of claim 2 , wherein the 5G communication module ( 117 ) is operable to communicate a time synchronization signal to the receiver module ( 112 ) of the respective airfield surveillance unit.

4 . The airfield multilateration system of claim 1 , wherein the 5G communication module ( 117 ) comprises a data communication port ( 1171 ) connected to the first data communication port ( 1123 ) of the receiver module of the respective airfield surveillance unit for receiving the converted aircraft transponder signal, and wherein the 5G communication module is configured to process the converted aircraft transponder signal for transmission via the second radio antenna ( 118 ).

5 . The airfield multilateration system of claim 4 , wherein the receiver module ( 112 ) comprises a second data communication port ( 1122 ), wherein the receiver module is operable to selectively communicate the converted aircraft transponder signal via the first data communication port ( 1123 ) and the second data communication port ( 1122 ).

6 . The airfield multilateration system of claim 5 , wherein the second data communication port ( 1122 ) is configured to be coupled to a wired data communication line ( 13 ).

7 . The airfield multilateration system of claim 1 , wherein the receiver module ( 112 ) is operable to apply a time-stamp to the aircraft transponder signal.

8 . The airfield multilateration system of claim 1 , wherein the first radio antenna ( 111 ) is configured to receive 1090 MHz signals.

9 . The airfield multilateration system of claim 1 , wherein the first radio antenna ( 111 ) and the second radio antenna ( 118 ) of a respective airfield surveillance unit are distinct.

10 . The airfield multilateration system of claim 1 , wherein the first radio antenna and the second radio antenna of a respective airfield surveillance unit are integrated in a single antenna assembly.

11 . The airfield multilateration system of claim 1 , wherein the computing module ( 121 ) is operable to perform multilateration computing based on time difference of arrival of the aircraft transponder signal received by the multiple ones of the plurality of airfield surveillance units ( 11 ).

12 . The airfield multilateration system of claim 1 , wherein the private 5G cellular network is configured for mission critical communication.

13 . The airfield multilateration system of claim 1 , wherein the central processing unit ( 12 ) comprises a 5G communication module ( 127 ) and a 5G radio antenna ( 128 ) coupled to the 5G communication module ( 127 ) of the central processing unit.

14 . The airfield multilateration system of claim 13 , wherein the 5G communication module ( 127 ) of the central processing unit and the computing module ( 121 ) are coupled for data communication.

15 . The airfield multilateration system of claim 1 , wherein the central processing unit ( 12 ) is operable for data communication with the plurality of airfield surveillance units ( 11 ) through the private 5G cellular network.

16 . An airport ( 100 ), comprising an airfield and the airfield multilateration system of claim 1 .

17 . An airfield multilateration system for detecting airfield traffic, the airfield multilateration system comprising a plurality of airfield surveillance units, each of the plurality of airfield surveillance units comprising:

a power supply module,

a first radio antenna configured to receive an aircraft transponder signal,

a receiver module coupled to the power supply module and configured to be coupled to the first radio antenna and comprising a first data communication port,

wherein the receiver module is operable to convert the aircraft transponder signal received by the first radio antenna for transmission via the first data communication port, wherein the converted aircraft transponder signal allows for determining a position of a corresponding aircraft via multilateration,

wherein each of the plurality of airfield surveillance units further comprises:

a second radio antenna configured to receive and transmit 5G radio signals, and

a 5G communication module coupled to the power supply module and configured to be coupled to the second radio antenna and operable to process 5G radio signals received or transmitted by the second radio antenna,

wherein the airfield multilateration system further comprises a central processing unit operable for data communication with the plurality of airfield surveillance units, the central processing unit comprising a computing module operable to determine an aircraft position based on the aircraft transponder signal received by multiple ones of the plurality of airfield surveillance units,

a wired data communication line,

wherein the 5G communication modules of the plurality of airfield surveillance units are configured to set up a private 5G cellular network, and

wherein the central processing unit is operable for data communication with the plurality of airfield surveillance units selectively through the 5G cellular network and through the wired data communication line.

18 . The airfield multilateration system of claim 17 , wherein the central processing unit is operable for data communication with the plurality of airfield surveillance units through the private 5G cellular network.