SELECTIVE ACTIVATION OF COMMUNICATIONS SERVICES ON POWER-UP OF A REMOTE UNIT(S) IN A DISTRIBUTED ANTENNA SYSTEM (DAS) BASED ON POWER CONSUMPTION

• US 20170055207A1
• Filed: 05/17/2016
• Published: 02/23/2017
• Est. Priority Date: 11/26/2013
• Status: Active Application

• Current Assignee: Corning Optical Communications LLC (Corning Incorporated)
• Original Assignee: Corning Optical Communications Wireless Ltd. (Corning Incorporated)
• Inventors: Hagage, Ron, Harel, Dror
• Application Number:
  US15/156,556
• Publication Number:
  US 20170055207A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04L 12/12 Arrangements for remote connection or disconnection of substations or of equipment thereof
• CPC Class Codes: H04W 52/0206 in access points, e.g. base stations access point devices per se H04W88/08
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

Selective activation of communications services on power-up of a remote unit in a distributed antenna system (DAS) based on power consumption is disclosed. To avoid a remote unit drawing more power than is allowed and risking shutting down all of its communications services, after a remote unit in the DAS is powered-up to start its operations, the remote unit selectively activates its different communications services. The remote unit selectively activates communications services based on the power consumption of the remote unit to avoid the remote unit drawing more power than is allowed. If activating a next communications service would cause the remote unit to draw more power than is allowed, the remote unit discontinues activating additional communications services. In this manner, the already activated communications services in the remote unit can remain operational without risking powering down of the remote unit and discontinuing all of its communications services.

Claims

1. A remote unit for a distributed antenna system (DAS), comprising:

a plurality of communications service circuits each configured to process received respective communications signals for a respective communications service in the DAS;

a power selection circuit configured to draw power over a power input from a power supply and selectively provide the drawn power to each of the plurality of communications service circuits based on a control signal; and

a control circuit configured to;

determine power consumption of the remote unit based on the drawn power from over the power input from the power supply;

determine if the power consumption of the remote unit exceeds a defined threshold power level for the remote unit;

generate the control signal to direct the power selection circuit to selectively provide the drawn power to one or more of the plurality of communications service circuits in a sequence to activate the one or more plurality of communications service circuits, such that the power consumption of the remote unit does not exceed the defined threshold power level.

2. The remote unit of claim 1, wherein the defined threshold power level is based on a maximum power draw level from the power supply.

3. The remote unit of claim 2, wherein the control circuit is configured to generate the control signal to direct the power selection circuit to not provide the drawn power to an additional communications service circuit among the plurality of communications service circuits if power consumption exceeds the defined threshold power level.

4. The remote unit of claim 3, wherein the control circuit is configured to generate the control signal to direct the power selection circuit to selectively provide the drawn power to one or more of the plurality of communications service circuits during a power-up process of the remote unit.

5. The remote unit of claim 3, wherein the control circuit is configured to repeatedly:

determine the power consumption of the remote unit based on at least one communications service circuit among the plurality of communications service circuits drawing power from the power selection circuit;

determine if the power consumption of the remote unit exceeds the defined threshold power level for the remote unit; and

generate the control signal to direct the power selection circuit to selectively provide the drawn power to a next communications service circuit among the plurality of communications service circuits, if the power consumption does not exceed the defined threshold power level.

6. The remote unit of claim 5, wherein the control circuit is configured to generate the control signal to direct the power selection circuit to selectively provide the drawn power to the next communications service circuit based on a priority communications service power-up list for the plurality of communications service circuits.

7. The remote unit of claim 3, wherein the control circuit is configured to:

store a communications service indicia indicating the one or more of the plurality of communications service circuits drawing power from the power selection circuit such that the power consumption of the remote unit does not exceed the defined threshold power level; and

determine the power consumption of the remote unit based on the communications service indicia.

8. The remote unit of claim 7, further comprising a non-volatile memory, wherein the control circuit is configured to store the communications service indicia in the non-volatile memory.

9. The remote unit of claim 7, wherein the control circuit is configured to generate the control signal to direct the power selection circuit to selectively provide the drawn power to one or more of the plurality of communications service circuits during a subsequent power-up process of the remote unit, based on the communications service indicia indicating the one or more of the plurality of communications service circuits drawing power during a previous power-up process of the remote unit.

10. The remote unit of claim 9, wherein the communications service indicia is comprised of a phase indicia, and wherein the control circuit is further configured to:

set the phase indicia to an initial phase before generating the control signal to direct the power selection circuit to selectively provide the drawn power to one or more of the plurality of communications service circuits;

if the phase indicia is set, generate the control signal to direct the power selection circuit to selectively provide the drawn power to one or more of the plurality of communications service circuits such that the power consumption of the remote unit does not exceed the defined threshold power level; and

set the phase indicia based on each of the one or more of the plurality of communications service circuits drawing power from the power selection circuit.

11. The remote unit of claim 10, wherein the control circuit is configured to reset the phase indicia to the initial phase if the power selection circuit selectively providing the drawn power to all communications service circuits among the plurality of communications service circuits did not cause the power consumption of the remote unit to exceed the defined threshold power level.

12. The remote unit of claim 11, wherein the control circuit is configured to generate the control signal to direct the power selection circuit to selectively provide the drawn power to the one or more of the plurality of communications service circuits such that the power consumption of the remote unit does not exceed the defined threshold power level based on the phase indicia.

13. The remote unit of claim 2, further comprising a power measurement circuit configured to measure the power consumed by the remote unit and generate a power measurement signal indicating a power consumption level indicating the power consumption by the remote unit, wherein the control circuit is configured to:

receive the power measurement signal; and

generate the control signal to direct the power selection circuit to selectively provide the drawn power to the one or more of the plurality of communications service circuits such that the power consumption of the remote unit does not exceed the defined threshold power level based on the power consumption level.

14. The remote unit of claim 13, wherein the control circuit is configured to store a communications service indicia indicating the one or more of the plurality of communications service circuits drawing power from the power selection circuit such that the power consumption of the remote unit does not exceed the defined threshold power level.

15. The remote unit of claim 14, further comprising a non-volatile memory, wherein the control circuit is configured to store the communications service indicia in the non-volatile memory.

16. The remote unit of claim 14, wherein the control circuit is configured to generate the control signal to direct the power selection circuit to selectively provide the drawn power to one or more of the plurality of communications service circuits during a subsequent power-up process of the remote unit, based on the communications service indicia indicating the one or more of the plurality of communications service circuits drawing power during a previous power-up process of the remote unit.

17. The remote unit of claim 16, wherein the communications service indicia is comprised of a phase indicia, and wherein the control circuit is configured to:

set the phase indicia to an initial phase before generating the control signal to direct the power selection circuit to selectively provide the drawn power to one or more of the plurality of communications service circuits;

if the phase indicia is set, generate the control signal to direct the power selection circuit to selectively provide the drawn power to one or more of the plurality of communications service circuits such that the power consumption of the remote unit does not exceed the defined threshold power level; and

set the phase indicia based on each of the one or more of the plurality of communications service circuits drawing power from the power selection circuit.

18. The remote unit of claim 17, wherein the control circuit is configured to reset the phase indicia to the initial phase if the power selection circuit selectively providing the drawn power to all communications service circuits among the plurality of communications service circuits did not cause the power consumption of the remote unit to exceed the defined threshold power level.

19. The remote unit of claim 16, wherein the control circuit is configured to, if the phase indicia is not set, generate the control signal to direct the power selection circuit to selectively provide the drawn power to each of the plurality of communications service circuits.

20. The remote unit of claim 19, wherein the power selection circuit is configured to draw the power over the power input from an external power supply.

21. The remote unit of claim 4, wherein the power supply is comprised of an internal power supply, and wherein the power selection circuit is configured to draw the power over the power input from the internal power supply.

22. The remote unit of claim 3, wherein the power selection circuit is comprised of a plurality of switches each configured to direct the drawn power to a respective communications service circuit among the plurality of communications service circuits based on the control signal.

23. The remote unit of claim 22, wherein the power selection circuit is configured to draw power over a power input from at least one electrical conductor.

24. The remote unit of claim 23, where at least one of the plurality of communications service circuits comprises an Ethernet connectivity service.

25. A method of controlling power consumption of a remote unit in a distributed antenna system (DAS), comprising:

drawing power from a power supply in response to a power-up condition;

determining power consumption of a remote unit based on the drawn power from the power supply;

determining if the power consumption of the remote unit exceeds a predetermined power threshold level for the remote unit; and

selectively providing the drawn power to one or more plurality of communications service circuits each configured to receive a respective communications signal for a respective communications service in the DAS in a sequence, to activate the one or more plurality of communications service circuits, based on the determined power consumption of the remote unit.

26-55. -55. (canceled)