Access point and methods for use in a radio distributed antenna system

• US 10,230,428 B1
• Filed: 11/15/2017
• Issued: 03/12/2019
• Est. Priority Date: 11/15/2017
• Status: Active Grant

• Current Assignee: AT&T Intellectual Property I LP (AT&T, Inc.)
• Original Assignee: AT&T Intellectual Property I LP (AT&T, Inc.)
• Inventors: Barzegar, Farhad, Gerszberg, Irwin, Vannucci, Giovanni, Wolniansky, Peter, Henry, Paul Shala
• Primary Examiner(s): Phu, Phuong
• Application Number:
  US15/813,618
• Time in Patent Office: 482 Days
• Field of Search: 375257, 375260, 375219, 375220, 375222
• CPC Class Codes: H01Q 13/0208 Corrugated horns waveguide mouth antenna with corrugated flange H01Q13/065; manufacturing details H01Q13/0283
• CPC Class Codes: H01Q 13/0233 Horns fed by a slotted waveguide array biconical horns H01Q13/06
• CPC Class Codes: H01Q 13/0258 Orthomode horns orthomode transducers H01P1/161
• CPC Class Codes: H01Q 13/10 Resonant slot antennas
• CPC Class Codes: H01Q 13/24 constituted by a dielectric or ferromagnetic rod or pipe H01Q13/28 takes precedence
• CPC Class Codes: H01Q 21/064 using horn or slot aerials slotted waveguides arrays H01Q21/005
• CPC Class Codes: H01Q 21/205 providing an omnidirectional coverage turnstile aerials H01Q21/26
• CPC Class Codes: H04B 2203/5487 cables
• CPC Class Codes: H04B 3/36 Repeater circuits H04B3/58 takes precedence
• CPC Class Codes: H04B 3/56 Circuits for coupling, blocking, or by-passing of signals
• CPC Class Codes: H04B 3/58 Repeater circuits

Abstract

In accordance with one or more embodiments, an access point includes a communication interface having: a coupler configured to receive, via a transmission medium, first guided electromagnetic waves from a communication node of a radio distributed antenna system, wherein the first guided electromagnetic waves propagate along the transmission medium without requiring an electrical return path; and also a receiver configured to receive first data from the first guided electromagnetic waves. A data switch is configured to select first selected portions of the first data for transmission to at least one communication device in proximity to the access point.

Claims

1. An access point comprising:

a communication interface that includes;

a coupler configured to receive, via a transmission medium, first guided electromagnetic waves from a communication node of a radio distributed antenna system, wherein the first guided electromagnetic waves propagate along the transmission medium without requiring an electrical return path; and

a receiver configured to receive first data from the first guided electromagnetic waves; and

a data switch configured to select selected portions of the first data for transmission to at least one communication device in proximity to the access point;

wherein the communication node is coupled to a utility pole and wherein the access point further comprises a low voltage power supply that generates a power supply voltage from a low voltage power line supported by the utility pole, and wherein the power supply voltage powers the communication interface and the data switch.

2. The access point of claim 1, wherein the first transmission medium includes a dielectric core surrounded, at least in part, by a dielectric cladding.

3. The access point of claim 2, wherein the dielectric core has a first relative permittivity and the dielectric cladding has a second relative permittivity that is less than the first relative permittivity.

4. The access point of claim 2, wherein the first guided electromagnetic waves propagate along the transmission medium with a first electromagnetic field strength within the dielectric core and a second electromagnetic field strength within the dielectric cladding.

5. The access point of claim 4, wherein the first electromagnetic field strength is greater than the second electromagnetic field strength.

6. The access point of claim 1, wherein the first data is formatted in accordance with an Ethernet protocol and wherein the data switch includes an Ethernet switch.

7. The access point of claim 6, wherein the Ethernet switch routes, via a wired connection, the selected portions of the first data to the at least one communication device.

8. The access point of claim 1, further comprising a wireless transceiver that transmits the selected portions of the first data to the at least one communication device in accordance with a wireless communication protocol.

9. The access point of claim 1, wherein the data switch is further configured to route second data, received from the at least one communication device, to the communication interface;

wherein the communication interface further includes a transmitter configured to generate electromagnetic signals in response to the second data; and

wherein the coupler is further configured to transmit via the transmission medium, responsive to the electromagnetic signals, second guided electromagnetic waves to the communication node of the radio distributed antenna system, wherein the second guided electromagnetic waves propagate along the transmission medium without requiring the electrical return path.

10. The access point of claim 1, wherein the communication node is configured to communicate free space wireless signals with a remote communication node of the radio distributed antenna system, via an antenna.

11. The access point of claim 10, wherein the free space wireless signals are within a millimeter wave frequency band.

12. A method comprising:

receiving, via a communication interface that includes a coupler coupled to a transmission medium, first guided electromagnetic waves from a communication node of a radio distributed antenna system, wherein the first guided electromagnetic waves propagate along the transmission medium without requiring an electrical return path, and wherein the first guided electromagnetic waves convey first data;

selecting, via a data switch, selected portions of the first data for transmission to at least one communication device; and

generating, via a low voltage power supply, a power supply voltage from a low voltage power line supported by a utility pole, wherein the communication node is coupled to the utility pole and wherein the power supply voltage powers the communication interface and the data switch.

13. The method of claim 12, wherein the transmission medium includes a dielectric core surrounded, at least in part, by a dielectric cladding.

14. The method of claim 13, wherein the dielectric core has a first relative permittivity and the dielectric cladding has a second relative permittivity that is less than the first relative permittivity.

15. The method of claim 13, wherein the first guided electromagnetic waves propagate along the transmission medium with a first electromagnetic field strength within the dielectric core and a second electromagnetic field strength within the dielectric cladding, and wherein the first electromagnetic field strength is greater than the second electromagnetic field strength.

16. The method of claim 12, further comprising:

routing, via a wired connection, the selected portions of the first data to the at least one communication device.

17. The method of claim 12, further comprising:

transmitting, via a wireless transceiver, the selected portions of the first data to the at least one communication device in accordance with a wireless communication protocol.

18. The method of claim 12, further comprising:

receiving second data from the at least one communication device;

generating electromagnetic signals in response to the second data; and

transmitting via the transmission medium and responsive to the electromagnetic signals, second guided electromagnetic waves to the communication node of the radio distributed antenna system, wherein the second guided electromagnetic waves propagate along the transmission medium without requiring the electrical return path.

19. An access point comprising:

a communication interface that includes;

a coupler configured to receive, via a transmission medium, first guided electromagnetic waves from a communication node of a radio distributed antenna system, wherein the first guided electromagnetic waves propagate along the transmission medium without requiring an electrical return path; and

a receiver configured to receive first data from the first guided electromagnetic waves; and

a data switch configured to select selected portions of the first data for transmission to at least one communication device in proximity to the access point;

wherein the communication node is configured to communicate free space wireless signals with a remote communication node of the radio distributed antenna system, via an antenna.

20. The access point of claim 19, wherein the transmission medium includes a dielectric core surrounded, at least in part, by a dielectric cladding.