System and method for using dedicated PAL band for control plane and GAA band as well as parts of PAL band for data plan on a CBRS network

Patent metadata

Field	Value
Publication number	US-10743191-B2
Application number	US-201916558749-A
Country	US
Kind code	B2
Filing date	Sep 3, 2019
Priority date	Aug 30, 2016
Publication date	Aug 11, 2020
Grant date	Aug 11, 2020

Abstract

A system for providing small cell backhaul communications includes a small cell backhaul network including a plurality of small cell network nodes each including transceivers enabling communication with at least two other small cell network nodes. A software defined network (SDN) controller controls the transceivers at each of the plurality of small cell network nodes to establish link configurations between the plurality of small cell network nodes of the small cell backhaul network. The SDN controller implements an optimizer module for managing operation the small cell backhaul network. The optimizer module uses an OpenFlow protocol to gather wireless and power consumption statistics.

First claim

What is claimed is:

1. A system for providing small cell backhaul communications, comprising:
a small cell backhaul network including a plurality of small cell network nodes each including transceivers for establishing wireless communication links with at least two other small cell network nodes and enabling communication with the at least two other small cell network nodes within the small cell backhaul network, the small cell backhaul network interconnecting an edge network with a core network through the plurality of small cell network nodes and enabling communication between the edge network and the core network over the wireless communications links;
a software defined network (SDN) controller for controlling, via a second plurality of wireless communications links with each of the plurality of small cell network nodes, the transceivers at each of the plurality of small cell network nodes establishing link configurations between the small cell network node and the at least two other small cell network nodes of the small cell backhaul network;
wherein the SDN controller implements an optimizer module for managing operation the small cell backhaul network, the optimizer module using an OpenFlow protocol to gather wireless and power consumption statistics for controlling the transceivers at each of the plurality of small cell network nodes; and
wherein each of the plurality of small cell network nodes further includes a PAL interface for establishing a PAL control channel from the small cell network nodes to the SDN controller for communicating the wireless and power consumption statistics to the SDN controller.

2. The system of claim 1 , wherein the optimizer module further generates control instructions to the small cell backhaul network to minimize power and latency of the small cell backhaul network.

3. The system of claim 1 , wherein the optimizer module further generates control instructions to the small cell backhaul network to maximize capacity of the small cell backhaul network.

4. The system of claim 1 further including a wireless statistics manager associated with the SDN controller for collecting the wireless and power consumption statistics gathered by the optimizer module.

5. The system of claim 1 , wherein the SDN controller estimates a delay for each path of the small cell backhaul network responsive to at least one of the wireless and power consumption statistics and controls latency of existing paths responsive to the estimated delays.

6. The system of claim 1 , wherein the optimizer module further optimizes operation of the small cell backhaul network responsive to the wireless and power consumption statistics.

7. The system of claim 1 , wherein the SDN controller further comprises an OpenFlow plug-in for detecting OpenFlow protocol messages.

8. A method for providing small cell backhaul communications, comprising:
establishing wireless communications links between each of a plurality of small cell network nodes of a small cell backhaul network and at least two other small cell network nodes of the small cell backhaul network and between each of the plurality of small cell network nodes and a software defined network (SDN) controller using transceivers located at each of the plurality of small cell network nodes of the small cell backhaul network, the small cell backhaul network interconnecting an edge network with a core network through the plurality of small cell network nodes and enabling communication between the edge network and the core network over the wireless communications links;
controlling the transceivers at each of the plurality of small cell network nodes establishing links with the at least two other small cell network nodes of the small cell backhaul network using the wireless communications link between each of the plurality of small cell network nodes and the SDN controller;
managing operation the small cell backhaul network using an optimizer module implementing an OpenFlow protocol to gather wireless and power consumption statistics for controlling the transceivers at each of the plurality of small cell network nodes; and
generating control instructions to the small cell backhaul network to minimize power and latency of the small cell backhaul network through the optimizer module.

9. The method of claim 8 further including generating control instructions to the small cell backhaul network to maximize capacity of the small cell backhaul network from the optimizer module.

10. The method of claim 8 further including collecting the wireless and power consumption statistics gathered by the optimizer module using a wireless statistics manager associated with the SDN controller.

11. The method of claim 8 further including estimating a delay for each path of the small cell backhaul network responsive to at least one of the wireless and power consumption statistics and controls latency of existing paths responsive to the estimated delays by the SDN controller.

12. The method of claim 8 further including optimizing operation of the small cell backhaul network responsive to the wireless and power consumption statistics using the optimizer module.

13. The method of claim 8 further including establishing a PAL control channel from the small cell network nodes to the SDN controller for communicating the wireless and power consumption statistics to the SDN controller using a PAL interface within each of the small cell network nodes.

14. The method of claim 8 further including detecting OpenFlow protocol messages using an OpenFlow plug-in within the SDN controller.

15. A system for providing small cell backhaul communications, comprising:
a small cell backhaul network including a plurality of small cell network nodes each including transceivers for establishing wireless communications links with at least two other small cell network nodes and enabling communications with the at least two other small cell network nodes within the small cell backhaul network, the small cell backhaul network comprising a multiband network interconnecting an edge network with a core network through the plurality of small cell network nodes and enabling communication between the edge network and the core network over the wireless communications links;
a software defined network (SDN) controller for controlling, via a second plurality of wireless communications links with each of the plurality of small cell network nodes, the transceivers at each of the plurality of small cell network nodes establishing link configurations between the small cell network node and the at least two other small cell network nodes of the small cell backhaul network; and
wherein the SDN controller routes data over the multiband network using multi-hop deployment; and
wherein the SDN controller estimates a delay for each path of the small cell backhaul network to control latency.

16. The system of claim 15 , wherein the multiband network comprises at least two of a mmWave network, a sub 6 network and a FSO (free space optical) network.

17. The system of claim 15 , wherein the SDN controller further generates control instructions to the small cell backhaul network to minimize power and latency of the small cell backhaul network.

18. The system of claim 15 , wherein the SDN controller further generates control instructions to the small cell backhaul network to maximize capacity of the small cell backhaul network.

19. The system of claim 15 further including fast failover group tables from OpenFlow to repair link failures in the small cell backhaul networ

Assignees

• Nxgen Partners Ip Llc

Inventors

• Ashrafi Solyman

Classifications

• H04W72/20

  Control channels or signalling for resource management · CPC title

• H04W72/30

  Resource management for broadcast services · CPC title

• H04L41/12

  Discovery or management of network topologies · CPC title

• H04L41/0894

  Policy-based network configuration management · CPC title

• H04L41/0895

  Configuration of virtualised networks or elements, e.g. virtualised network function or OpenFlow elements · CPC title