Power management for remote antenna units in distributed antenna systems

Patent metadata

Field	Value
Publication number	US-10849064-B2
Application number	US-201916536271-A
Country	US
Kind code	B2
Filing date	Aug 8, 2019
Priority date	Oct 13, 2010
Publication date	Nov 24, 2020
Grant date	Nov 24, 2020

Abstract

Power management for remote units in a wireless distribution system. Power can be managed for a remote unit configured to power modules and devices that may require more power to operate than power available to the remote unit. For example, the remote unit may be configured to include power-consuming remote unit modules to provide communication services. As another example, the remote unit may be configured to provide power through powered ports in the remote unit to power-consuming devices. Depending on the configuration of the remote unit, the power-consuming remote unit modules and/or power-consuming devices may demand more power than is available at the remote unit. In this instance, the power available at the remote unit can be distributed to the power-consuming modules and devices based on the priority of services desired to be provided by the remote unit.

First claim

What is claimed is:

1. A wireless communication system, comprising:
a plurality of remote units, each remote unit comprising: at least one electrical-to-optical converter configured to convert electrical uplink communications to optical uplink communications; at least one optical-to-electrical converter configured to convert optical downlink communications to electrical downlink communications; and at least one antenna configured to provide RF communications services to a coverage area;
wherein at least one of the remote units is configured to provide power to at least one external power-consuming device connected to at least one powered port; and

a head end comprising a remote controller communicatively coupled to the plurality of remote units, wherein the remote controller is configured to:
communicate with the at least one remote unit to determine an available power for the at least one powered port; and
communicate the available power for the at least one powered port to the at least one remote unit.

2. The wireless communication system of claim 1 , wherein the remote controller is configured to receive a type of at least one external power-consuming device from the at least one remote unit.

3. The wireless communication system of claim 2 , wherein the remote controller is configured to determine the available power for the at least one powered port based on power required for the at least one external power-consuming device.

4. The wireless communication system of claim 2 , wherein the remote controller is further configured to look up in memory the power required for the at least one external power-consuming device.

5. The wireless communication system of claim 2 , wherein the plurality of remote units are distributed over multiple floors of a building infrastructure.

6. The wireless communication system of claim 5 , further comprising a plurality of optical fiber cables optically communicatively coupled to the plurality of remote units.

7. The wireless communication system of claim 1 , further comprising a plurality of optical fiber cables, wherein:
each of the plurality of remote units is optically communicatively coupled to at least one of the optical fiber cables; and
the plurality of remote units are distributed over multiple floors of a building infrastructure.

8. The wireless communication system of claim 7 , wherein at least one of the optical fiber cables includes at least one electrical power line.

9. A wireless communication system deployed in a building infrastructure, comprising:
a plurality of optical fiber cables;
a plurality of remote units optically communicatively coupled to the plurality of optical fiber cables, each remote unit comprising a radio frequency (RF) communications module having at least one antenna configured to provide RF communications services to a coverage area,
wherein at least one of the remote units is configured to provide power to at least one external power-consuming device connected to at least one powered port; and

a head end optically communicatively coupled to the plurality of optical fiber cables, the head end comprising a remote controller communicatively coupled to the plurality of remote units, wherein the remote controller is configured to:
communicate with the at least one remote unit to determine an available power for the at least one powered port; and
communicate the available power for the at least one powered port to the at least one remote unit.

10. The wireless communication system of claim 9 , wherein each remote unit is connected to at least one of the optical fiber cables at a port of each remote unit.

11. The wireless communication system of claim 10 , wherein the at least one remote unit is configured to transmit uplink optical communications signals to the head end, and wherein the head end is configured to receive and process downlink communications signals.

12. The wireless communication system of claim 10 , wherein the remote controller is configured to determine the available power for the at least one powered port based on power required for the at least one external power-consuming device.

13. The wireless communication system of claim 12 , wherein the remote controller is configured to determine the power required for the at least one external power-consuming device based on a type of the remote unit module.

14. The wireless communication system of claim 11 , wherein the remote controller is further configured to receive a power status of the at least one powered port from the at least one remote unit.

15. The wireless communication system of claim 9 , wherein the remote controller is further configured to receive a power status of the at least one powered port from the at least one remote unit.

16. A wireless communication system deployed in a building infrastructure, comprising:
a plurality of optical riser cables having a plurality of optical fibers extending through multiple floors of the building infrastructure,
a plurality of remote units optically communicatively coupled to the optical riser cables, each remote unit comprising a radio frequency (RF) communications module having at least one antenna configured to provide RF communications services to a coverage area,
wherein at least one of the remote units is configured to provide power to at least one external power-consuming device connected to at least one powered port; and

a head end comprising a remote controller optically communicatively coupled to the plurality of remote units, wherein the remote controller is configured to:
communicate with the at least one remote unit to determine an available power for the at least one powered port; and
communicate the available power for the at least one powered to the at least one remote unit.

17. The wireless communication system of claim 16 , wherein:
the at least one remote unit is configured to transmit uplink optical communications signals to the head end;
the head end comprises at least one interface module configured to receive and process downlink communications signals; and
the remote controller is configured to receive a power status of the at least one powered port from the at least one remote unit.

18. A wireless communication system, comprising:
a plurality of optical fiber cables deployed in a building infrastructure;
a plurality of remote units deployed over multiple floors of the building infrastructure and optically communicatively coupled to the optical fiber cables, each remote unit comprising: at least one electrical-to-optical converter; at least one optical-to-electrical converter; and at least one antenna configured to provide RF communications services to a coverage area,
wherein at least one of the remote units is configured to provide power to at least one external power-consuming device connected to at least one powered port; and

a head end optically communicatively coupled to the optical fiber cables, comprising a remote controller communicatively coupled to the plurality of remote units, wherein the remote controller is configured to:
determine an available power for the at least one powered port; and
communicate the available power for the at least one powered port to the at least one remote unit.

19. The wireless communication system of claim 18 , wherein the remote controller is further configured to receive a power status of the at least one powered port from the at least one remote unit.

20. The wireless communication system of claim 19 , wherein at least one of the

Assignees

• Corning Optical Communications LLC

Inventors

• Heidler Christian
• Hull Jonathan Richard
• Kedziora Jessica Joy
• Sauer Michael
• Schweiker Wolfgang Gottfried Tobias

Classifications

• Y02D30/70

  in wireless communication networks · CPC title

• H04W84/12

  WLAN [Wireless Local Area Networks] · CPC title

• H04B10/808

  Electrical power feeding of an optical transmission system · CPC title

• H04W88/085

  Access point devices with remote components · CPC title

• H04B10/11

  Arrangements specific to free-space transmission, i.e. transmission through air or vacuum · CPC title