Distributed communications systems (DCSs) supporting virtualization of remote units as citizens band radio service (CBRS) devices (CBSDs)

Patent metadata

Field	Value
Publication number	US-11889389-B2
Application number	US-202117533331-A
Country	US
Kind code	B2
Filing date	Nov 23, 2021
Priority date	Sep 30, 2019
Publication date	Jan 30, 2024
Grant date	Jan 30, 2024

Abstract

Distributed communications systems (DCSs) supporting virtualization of remote units as citizens band radio service (CBRS) devices (CBSDs) are disclosed. In examples discussed herein, the DCS includes a routing circuit that is coupled to a number of remote units configured to communicate a downlink communications signal(s) and an uplink communications signal(s) in one or more CBRS channels. In this regard, a CBRS control circuit is provided to present each of the remote units as a uniquely identifiable virtual CBSD to a spectrum access system (SAS) and facilitate communications between the SAS and the remote units. As such, the SAS may be able spoofed to treat the uniquely identifiable virtual CBSD as real CBSDs to uniquely identify each of the remote units for CBRS channel assignment and/or transmission power control. As a result, it may be possible to support CBRS in the DCS in compliance with the Federal Communications Commission (FCC) requirements.

First claim

What is claimed is:

1. A distributed communications system (DCS), comprising:
a plurality of remote units;
a routing circuit corresponding to at least one citizens band radio service (CBRS) device (CBSD) cell identification, the routing circuit coupled to the plurality of remote units, wherein the plurality of remote units are configured to communicate at least one downlink communications signal and at least one uplink communications signal in one or more CBRS channels; and
a CBRS control circuit coupled to the routing circuit, the CBRS control circuit configured to:
generate a plurality of CBRS parameter sets configured to identify the plurality of remote units as a plurality of virtual CBSDs, respectively;
communicate the plurality of CBRS parameter sets to a spectrum access system (SAS);
receive at least one CBRS configuration parameter set corresponding to at least one selected remote unit among the plurality of remote units; and
provide the at least one CBRS configuration parameter set to the routing circuit to cause the at least one selected remote unit to operate based on the at least one CBRS configuration parameter set.

2. The DCS of claim 1 , wherein the routing circuit is further configured to:
receive a plurality of remote unit parameter sets from the plurality of remote units, respectively; and
provide the plurality of remote unit parameter sets to the CBRS control circuit.

3. The DCS of claim 2 , wherein the routing circuit is further configured to:
receive the at least one CBRS configuration parameter set from the CBRS control circuit; and
provide the at least one CBRS configuration parameter set to the at least one selected remote unit.

4. The DCS of claim 3 , wherein each of the plurality of remote unit parameter sets comprises at least one parameter selected from the group consisting of: a remote unit location number, a remote unit serial identification, and a remote unit antenna above-ground-level (AGL).

5. The DCS of claim 3 , wherein the CBRS control circuit is configured to generate the plurality of CBRS parameter sets comprising the plurality of remote unit parameter sets, respectively.

6. The DCS of claim 5 , further comprising at least one CBRS signal node associated with the at least one CBSD cell identification and coupled to the routing circuit and the CBRS control circuit, the at least one CBRS signal node configured to:
provide the at least one downlink communications signal to the routing circuit for distribution to the plurality of remote units; and
receive the at least one uplink communications signal from the plurality of remote units via the routing circuit.

7. The DCS of claim 6 , further comprising at least one CBRS service node coupled between the at least one CBRS signal node and the CBRS control circuit, the at least one CBRS service node configured to facilitate communications between the at least one CBRS signal node and the CBRS control circuit.

8. The DCS of claim 6 , wherein the CBRS control circuit is further configured to receive at least one CBSD parameter set from the at least one CBRS signal node.

9. The DCS of claim 8 , wherein the at least one CBSD parameter set comprises at least one parameter selected from the group consisting of: the at least one CBSD cell identification, the one or more CBRS channels, a requested authorization status, a call sign, a user contact information, an air interface technology, a geographic location, an antenna height above-ground-level, a CBSD Category A class information, a CBSD Category B class information, a Federal Communications Commission (FCC) identification number, a unique manufacturer's serial number, and information related to sensing capabilities.

10. The DCS of claim 8 , wherein the CBRS control circuit is configured to generate the plurality of CBRS parameter sets each comprising the at least one CBSD parameter set.

11. The DCS of claim 6 , wherein the CBRS control circuit is further configured to receive the at least one CBRS configuration parameter set comprising an instruction to eliminate a selected CBRS channel among the one or more CBRS channels from the DCS.

12. The DCS of claim 11 , wherein the CBRS control circuit is further configured to cause the at least one CBRS signal node to stop communicating the at least one downlink communications signal and the at least one uplink communications signal in the selected CBRS channel.

13. The DCS of claim 6 , wherein the CBRS control circuit is further configured to receive the at least one CBRS configuration parameter set comprising an instruction to eliminate a selected CBRS channel among the one or more CBRS channels from the DCS.

14. The DCS of claim 13 , wherein the CBRS control circuit is further configured to cause the routing circuit to stop routing the at least one downlink communications signal and the at least one uplink communications signal in the selected CBRS channel.

15. The DCS of claim 6 , wherein the CBRS control circuit is further configured to receive the at least one CBRS configuration parameter set comprising an instruction to eliminate a selected CBRS channel among the one or more CBRS channels from the DCS.

16. The DCS of claim 15 , wherein the CBRS control circuit is further configured to cause the plurality of remote units to stop communicating the at least one downlink communications signal and the at least one uplink communications signal in the selected CBRS channel.

17. The DCS of claim 6 , wherein the CBRS control circuit is further configured to receive the at least one CBRS configuration parameter set comprising an instruction to eliminate a selected CBRS channel among the one or more CBRS channels from the at least one selected remote unit.

18. The DCS of claim 17 , wherein the CBRS control circuit is further configured to:
cause the routing circuit to stop communicating the at least one downlink communications signal to the at least one selected remote unit in the selected CBRS channel; and
cause the routing circuit to stop providing the at least one uplink communications signal received from the at least one selected remote unit in the selected CBRS channel to the at least one CBRS signal node.

19. The DCS of claim 6 , wherein the CBRS control circuit is further configured to:
receive the at least one CBRS configuration parameter set comprising an instruction to eliminate a selected CBRS channel among the one or more CBRS channels from the at least one selected remote unit; and
cause the at least one selected remote unit to stop communicating the at least one downlink communications signal and the at least one uplink communications signal in the selected CBRS channel.

20. The DCS of claim 6 , wherein the CBRS control circuit is further configured to:
receive the at least one CBRS configuration parameter set comprising an instruction to eliminate a selected CBRS channel among the one or more CBRS channels from the at least one selected remote unit;
cause the routing circuit to stop routing the at least one downlink communications signal to the at least one selected remote unit in the selected CBRS channel;
cause the routing circuit to stop providing the at least one uplink communications signal received from the at least one selected remote unit in the selected CBRS channel to the at least one CBRS signal node; and
cause the at least one selected remote unit to stop communicating the at least one downlink communications signal and the at least one uplink communications signal in the selected CBRS channel.

Assignees

• Corning Res & Dev Corp

Inventors

• Harel Dror

Classifications

• H04W4/10 Primary

  Push-to-Talk [PTT] or Push-On-Call services · CPC title

• H04W40/248

  Connectivity information update · CPC title

• H04W52/146

  Uplink power control · CPC title

• H04W72/0473

  the resource being transmission power · CPC title

• H04W72/20

  Control channels or signalling for resource management · CPC title