Power management for remote antenna units in distributed antenna systems
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.
1. A wireless communication system having a coverage area, comprising:
a plurality of remote units distributed over a plurality of floors of a building infrastructure, each of the plurality of remote units comprising:
at least one electrical-to-optical (E/O) converter configured to convert electrical uplink communications to optical uplink communications;
at least one optical-to-electrical (O/E) converter configured to convert optical downlink communications to electrical downlink communications; and
at least one antenna configured to transmit radio frequency (RF) communications services to the coverage area;
wherein at least one of the plurality of remote units comprises:
a first communications port connected to and configured to provide power to a first external power-consuming device; and
a second communications port;
a head end comprising a remote controller communicatively coupled to the plurality of remote units, wherein the remote controller is configured to provide a prioritization of services of the plurality of remote units;
at least one riser cable comprising a plurality of optical fibers in optical communication with the head end; and
at least one interconnect unit in optical communication with the at least one riser cable, wherein a plurality of cables connects at least two of the plurality of the remote units to the at least one interconnect unit.
2. The wireless communication system of claim 1 , wherein the first external power-consuming device is configured to provide WiFi service in the coverage area.
3. The wireless communication system of claim 2 , wherein the at least one interconnect unit comprises a plurality of interconnect units distributed over a plurality of floors of the building infrastructure, and wherein the first communications port comprises an RJ-45 connector.
4. The wireless communication system of claim 3 , further comprising a second external power-consuming device connected to the second communications port, the second external power-consuming device being configured to provide RF communications services.
5. The wireless communication system of claim 4 , wherein the remote controller is configured to:
receive a type of one or more of the first and the second external power-consuming devices from the at least one remote unit of the plurality of remote units; and
determine an allocation of power for one or more of the first communications port and the second communications port.
6. The wireless communication system of claim 1 , wherein:
the at least one interconnect unit comprises a plurality of interconnect units distributed over a plurality of floors of the building infrastructure; and
further comprising a second external power-consuming device connected to the second communications port, the second external power-consuming devices being configured to provide RF communications services.
7. The wireless communication system of claim 6 , wherein the remote controller is configured to:
receive a type of one or more of the first and the second external power-consuming devices from the at least one remote unit of the plurality of remote units; and
determine an allocation of power for one or more of the first communications port and the second communications port.
8. The wireless communication system of claim 7 , wherein the remote controller is configured to provide less power to one or more of the first communications port and the second communications port based on the allocation of power.
9. A wireless communication system having a coverage area, comprising:
a plurality of remote units distributed over a plurality of floors of a building infrastructure, each of the plurality of remote units comprising:
at least one electrical-to-optical (E/O) converter configured to convert electrical uplink communications to optical uplink communications;
at least one optical-to-electrical (O/E) converter configured to convert optical downlink communications to electrical downlink communications;
at least one antenna configured to transmit radio frequency (RF) communications services to the coverage area;
a first communications port configured to connect to and to provide power to a first external power-consuming device; and
a second communications port configured to connect to a second external power-consuming device;
a head end comprising a remote controller communicatively coupled to the plurality of remote units;
at least one riser cable comprising a plurality of optical fibers in optical communication with the head end; and
a plurality of interconnect units distributed over a plurality of floors of the building infrastructure and in optical communication with the at least one riser cable, wherein a plurality of cables connects to at least two of the plurality of the remote units.
10. The wireless communication system of claim 9 , further comprising a plurality of first external power-consuming devices, each first external power-consuming device being connected to a first communications port of a respective one of the plurality of remote units.
11. The wireless communication system of claim 10 , wherein each first external power-consuming device is configured to provide WiFi service in the coverage area.
12. The wireless communication system of claim 11 , wherein the head end is configured to:
convert electrical downlink communications to optical downlink communications; and
convert optical uplink communications to electrical uplink communications.
13. The wireless communication system of claim 11 , wherein the remote controller is configured to:
receive a type of one or more of the first and the second external power-consuming devices from one or more of the plurality of remote units; and
determine an allocation of power for one or more of the first communications ports and the second communications ports.
14. The wireless communication system of claim 9 , wherein the remote controller is configured to:
receive a type of one or more of the first and the second external power-consuming devices from one or more of the plurality of remote units; and
determine an allocation of power for one or more of the first communications ports and the second communications ports.
15. A wireless communication system having a coverage area, comprising:
a plurality of remote units distributed over a plurality of floors of a building infrastructure, each of the plurality of remote units comprising:
at least one electrical-to-optical (E/O) converter configured to convert electrical uplink communications to optical uplink communications;
at least one optical-to-electrical (O/E) converter configured to convert optical downlink communications to electrical downlink communications;
at least one antenna configured to transmit radio frequency (RF) communications services to the coverage area;
a first communications port configured to connect to and to provide power to a first external power-consuming device; and
a second communications port configured to connect to a second external power-consuming device;
a head end communicatively coupled to the plurality of remote units;
at least one riser cable comprising a plurality of optical fibers in optical communication with the head end;
at least one interconnect unit distributed over at least one floor of the building infrastructure and in optical communication with the at least one riser cable; and
a plurality of first external power-consuming devices, each first external power-consuming device being connected to a first communications port of a respective one of the plurality of remote units and configured to provide digital data services in the coverage area.
16. The wireless communication system of claim 15 , wherein the head end is configured to:
convert electrical downlink communications to optical downlink communications; and
convert optical uplink communications to electrical uplink communications.
17. The wireless communication system of claim 16 , wherein the head end is configured to:
receive a type of one or more of the first and the second external power-consuming devices from one or more of the plurality of remote units; and
determine an allocation of power for one or more of the first communications ports and the second communications ports.
18. A wireless communication system having a coverage area, comprising:
a plurality of remote units distributed over a plurality of floors of a building infrastructure, each of the plurality of remote units comprising:
at least one electrical-to-optical (E/O) converter configured to convert electrical uplink communications to optical uplink communications;
at least one optical-to-electrical (O/E) converter configured to convert optical downlink communications to electrical downlink communications; and
at least one antenna configured to transmit radio frequency (RF) communications services to the coverage area;
wherein at least one of the plurality of remote units comprises:
a plurality ports, each port being configured to connect to and to provide power to an external power-consuming device; and
at least one power-consuming device configured to provide WiFi service in the coverage area;
a head end comprising a remote controller communicatively coupled to the plurality of remote units, wherein the head end is configured to:
convert electrical downlink communications to optical downlink communications;
convert optical uplink communications to electrical uplink communications;
determine a prioritization of services of the plurality of remote units; and
communicate an allocation of power to the plurality of remote units; and
at least one riser cable extending through at least two of the floors and comprising a plurality of optical fibers in optical communication with the head end.
19. The wireless communication system of claim 18 , further comprising at least one interconnect unit in optical communication with the at least one riser cable, the at least one interconnect unit being in optical communication and electrical communication with at least one of the plurality of remote units.
20. The wireless communication system of claim 19 , wherein the remote controller is configured to:
receive a type of the at least one power-consuming device configured to provide WiFi service from the at least one of the plurality of remote units; and
determine the allocation of power for one or more of the plurality of ports based on power required for the type.