Method and apparatus for transmitting or receiving signals in a transportation system

Patent metadata

Field	Value
Publication number	US-9762289-B2
Application number	US-201414513550-A
Country	US
Kind code	B2
Filing date	Oct 14, 2014
Priority date	Oct 14, 2014
Publication date	Sep 12, 2017
Grant date	Sep 12, 2017

Abstract

Aspects of the subject disclosure may include, for example, a system for transmitting first electromagnetic waves that propagate on a surface of a component of a transit system, and receiving second electromagnetic waves that propagate on the surface of the component of the transit system. Other embodiments are disclosed.

First claim

What is claimed is:

1. A method, comprising:
transmitting, by a first waveguide system, first electromagnetic waves along a transmission medium via a communications interface of the first waveguide system, wherein the transmission medium comprises a component of a passenger transportation system that enables transport of a vehicle of the passenger transportation system, wherein the first electromagnetic waves are bound to a surface of the component of the passenger transportation system; and
receiving, by the first waveguide system, second electromagnetic waves propagating on the surface of the transmission medium, wherein a second waveguide system transmits the second electromagnetic waves that propagate on the surface of the component of the passenger transportation system, wherein the first electromagnetic waves transmitted by the first waveguide system operate at a first operating frequency, wherein the second electromagnetic waves are bound to the surface of the component of the passenger transportation system, wherein the second electromagnetic waves transmitted by the second waveguide system operate at a second operating frequency, and wherein the first operating frequency differs from the second operating frequency to reduce a signal interference between the first electromagnetic waves and the second electromagnetic waves.

2. The method of claim 1 , wherein the passenger transportation system comprises a railway system.

3. The method of claim 1 , wherein the component of the passenger transportation system comprises a conductor that facilitates delivery of electrical energy to the vehicle of the passenger transportation system.

4. The method of claim 1 , wherein the component of the passenger transportation system comprises a portion of a rail of a track for guiding the vehicle of the passenger transportation system.

5. The method of claim 4 , wherein the surface of the component comprises a surface of the portion of the rail of the track that does not make physical contact with the vehicle.

6. The method of claim 1 , wherein the communications interface comprises an optical interface or a radio frequency interface.

7. The method of claim 1 , wherein the first electromagnetic waves comprise first data, and wherein the second electromagnetic waves include second data.

8. The method of claim 7 , wherein the first electromagnetic waves and the second electromagnetic waves facilitate communication services between a first device located in the vehicle of the passenger transportation system and a second device remotely located from the vehicle.

9. The method of claim 8 , wherein the communication services comprise voice services or data services.

10. The method of claim 1 , wherein other electromagnetic waves that propagate on the surface of the transmission medium have an operating frequency that differs from the first operating frequency and the second operating frequency to reduce the signal interference.

11. A first waveguide system, comprising:
a waveguide that facilitates transmission of first electromagnetic waves that propagate along a surface of a component of a passenger transportation system that enables transport of a vehicle of the passenger transportation system;
a memory that stores instructions; and
a processor coupled to the memory, wherein responsive to executing the instructions, the processor performs operations comprising:
transmitting, via the waveguide, the first electromagnetic waves that propagate on the surface of the component of the passenger transportation system, wherein the first electromagnetic waves are bound to the surface of the component of the passenger transportation system, wherein a second waveguide system transmits second electromagnetic waves that propagate on the surface of the component of the passenger transportation system, wherein the second electromagnetic waves are bound to the surface of the component of the passenger transportation system, wherein the first electromagnetic waves transmitted by the first waveguide system operate at a first operating frequency, wherein the second electromagnetic waves transmitted by the second waveguide system operate at a second operating frequency, and wherein the first operating frequency differs from the second operating frequency to reduce a signal interference between the first electromagnetic waves and the second electromagnetic waves.

12. The first waveguide system of claim 11 , wherein the passenger transportation system comprises a railway system, and wherein the processor comprises a plurality of processors operating in a distributed processing environment.

13. The first waveguide system of claim 11 , wherein the component of the passenger transportation system comprises a conductor that facilitates delivery of electrical energy to the vehicle of the passenger transportation system, or a portion of a track for guiding the vehicle.

14. The first waveguide system of claim 13 , wherein the surface of the component of the passenger transportation system comprises a surface of the track that does not make physical contact with the vehicle.

15. The first waveguide system of claim 11 , wherein the waveguide comprises an optical interface for coupling the first waveguide system to the component of the passenger transportation system.

16. The first waveguide system of claim 11 , wherein the first electromagnetic waves comprise data that facilitates communication services between a first device located in the vehicle of the passenger transportation system and a second device remotely located from the vehicle.

17. The first waveguide system of claim 16 , wherein the communication services comprise voice services or data services.

18. A machine-readable device, comprising instructions, which when executed by a processor of a first waveguide system, cause the processor to perform operations comprising:
transmitting first electromagnetic waves that propagate on a surface of a component of a transit system that enables transport of a vehicle of the transit system, wherein the first electromagnetic waves are bound to the surface of the component of the transit system; and
receiving second electromagnetic waves that propagate on the surface of the component of the transit system, wherein a second waveguide system transmits the second electromagnetic waves that propagate on the surface of the component of the transit system, wherein the second electromagnetic waves are bound to the surface of the component of the transit system, wherein the first electromagnetic waves transmitted by the first waveguide system operate at a first operating frequency, wherein the second electromagnetic waves transmitted by the second waveguide system operate at a second operating frequency, and wherein the first operating frequency differs from the second operating frequency to reduce a signal interference between the first electromagnetic waves and the second electromagnetic waves.

19. The machine-readable device of claim 18 , wherein the transit system comprises a railway system, and wherein the processor comprises a plurality of processors operating in a distributed processing environment.

20. The machine-readable device of claim 18 , wherein the component of the transit system guides or powers the vehicle of the transit system.

21. The machine-readable device of claim 20 , wherein the component of the transit system comprises a track that guides the vehicle of the transit system, and wherein the surface of the component of the transit system c

Assignees

• At & T Ip I Lp
• At & T Ip I Lp

Inventors

• Henry Paul Shala
• Bennett Robert
• Gerszberg Irwin
• Barzegar Farhad
• Barnickel Donald J
• Willis Iii Thomas M

Classifications

• H01Q13/20

  Non-resonant leaky-waveguide or transmission-line antennas; Equivalent structures causing radiation along the transmission path of a guided wave · CPC title

• H04B3/54

  Systems for transmission via power distribution lines · CPC title

• H01Q1/46

  Electric supply lines or communication lines · CPC title

• H04B2203/5466

  using three phases conductors · CPC title

• B61L27/0005

  Operations & Transport · mapped topic