Backhaul link for distributed antenna system

Patent metadata

Field	Value
Publication number	US-9699785-B2
Application number	US-201514788994-A
Country	US
Kind code	B2
Filing date	Jul 1, 2015
Priority date	Dec 5, 2012
Publication date	Jul 4, 2017
Grant date	Jul 4, 2017

Abstract

A distributed antenna and backhaul system provide network connectivity for a small cell deployment. Rather than building new structures, and installing additional fiber and cable, embodiments described herein disclose using high-bandwidth, millimeter-wave communications and existing power line infrastructure. Above ground backhaul connections via power lines and line-of-sight millimeter-wave band signals as well as underground backhaul connections via buried electrical conduits can provide connectivity to the distributed base stations. An overhead millimeter-wave system can also be used to provide backhaul connectivity. Modules can be placed onto existing infrastructure, such as streetlights and utility poles, and the modules can contain base stations and antennas to transmit the millimeter-waves to and from other modules.

First claim

What is claimed is:

1. A system, comprising: a memory to store instructions; and a processor, communicatively coupled to the memory, to facilitate execution of the instructions to perform operations, comprising: facilitating receipt of a first guided electromagnetic surface wave via a first coupler coupled to a transmission medium, wherein the first guided electromagnetic surface wave is guided by a surface of the transmission medium; converting the first guided electromagnetic surface wave to an electronic signal; converting the electronic signal to a second guided electromagnetic surface wave; and facilitating transmission of the second guided electromagnetic surface wave via a second coupler coupled to the transmission medium, wherein the second guided electromagnetic surface wave is guided by the surface of the transmission medium.

2. The system of claim 1 , wherein the first guided electromagnetic surface wave is received via a receiver and the second guided electromagnetic surface wave is transmitted by a transmitter.

3. The system of claim 1 , wherein the first guided electromagnetic surface wave and the second guided electromagnetic surface wave travel in a same direction along the surface of the transmission medium.

4. The system of claim 1 , further comprising an inductive power supply that provides power to the system, wherein the inductive power supply receives the power from the transmission medium.

5. The system of claim 1 , wherein the operations further comprise amplifying the electronic signal.

6. The system of claim 1 , wherein the first coupler comprises a quasi-optical coupler.

7. The system of claim 6 , wherein the quasi-optical coupler comprises a lens for receiving a wireless signal generated by the first guided electromagnetic surface wave being reflected by a reflector coupled to the transmission medium.

8. The system of claim 1 , wherein the second coupler comprises a quasi-optical coupler.

9. The system of claim 8 , wherein the quasi-optical coupler comprises a lens for sending a wireless signal to a reflector coupled to the transmission medium to induce propagation of the second guided electromagnetic surface wave via the transmission medium.

10. The system of claim 1 , wherein the system comprises a waveguide system.

11. The system of claim 1 , wherein the first guided electromagnetic surface wave and the second guided electromagnetic surface wave have an operating frequency in a millimeter-wave frequency range.

12. A method, comprising:
facilitating, by a waveguide system, receipt of a first guided electromagnetic surface wave via a first coupler coupled to a transmission medium, wherein the first guided electromagnetic surface wave is guided by a surface of the transmission medium;
converting, by the waveguide system, the first guided electromagnetic surface wave to an electronic signal;
converting, by the waveguide system, the electronic signal to a second guided electromagnetic surface wave; and
facilitating, by the waveguide system, transmission of the second guided electromagnetic surface wave via a second coupler coupled to the transmission medium, wherein the second guided electromagnetic surface wave is guided by the surface of the transmission medium.

13. The method of claim 12 , wherein the waveguide system comprises a receiver for receiving the first guided electromagnetic surface wave and for converting the first guided electromagnetic surface wave to the electronic signal.

14. The method of claim 12 , wherein the waveguide system further comprises a transmitter for converting the electronic signal to the second guided electromagnetic surface wave and for transmitting the second guided electromagnetic surface wave.

15. The method of claim 12 , wherein the first guided electromagnetic surface wave and the second guided electromagnetic surface wave travel in a same direction along the surface of the transmission medium.

16. The method of claim 12 , wherein the first coupler comprises a dielectric material, and wherein the second coupler comprises a dielectric material.

17. A method, comprising:
receiving, via a first coupler coupled to a first transmission medium, a first electromagnetic surface wave guided by a first surface of the first transmission medium;
converting the first electromagnetic surface wave to an electronic signal;
converting the electronic signal to a second electromagnetic surface wave; and
transmitting, via a second coupler coupled to a second transmission medium, the second electromagnetic surface wave that propagates along a second surface of the second transmission medium.

18. The method of claim 17 , wherein the first coupler comprises a reflector coupled to the first transmission medium, and wherein the receiving further comprises reflecting the first electromagnetic surface wave from the reflector for providing a wireless signal.

19. The method of claim 17 , wherein the second coupler comprises a reflector coupled to the second transmission medium, and wherein the transmitting further comprises transmitting a wireless signal to the reflector for inducing propagation of the second electromagnetic surface wave via the second transmission medium.

20. The method of claim 17 , wherein the first electromagnetic surface wave and the second electromagnetic surface wave have an operating frequency in a millimeter-wave frequency range, and wherein the first transmission medium and the second transmission medium are a same transmission medium.

Assignees

• At & T Ip I Lp
• At & T Ip I Lp

Inventors

• Henry Paul Shala
• Barnickel Donald J
• Barzegar Farhad
• Blandino George
• Gerszberg Irwin
• Willis Iii Thomas M

Classifications

• H02J13/1311

  using the power network as support for the transmission · CPC title

• H04B3/56

  Circuits for coupling, blocking, or by-passing of signals · CPC title

• H04W84/045

  using private Base Stations, e.g. femto Base Stations, home Node B · CPC title

• H04B2203/5441

  Wireless systems or telephone · CPC title

• H04B3/542

  the information being in digital form · CPC title