System and method for an agile wireless access network

• US 10,390,348 B2
• Filed: 05/01/2017
• Issued: 08/20/2019
• Est. Priority Date: 06/05/2013
• Status: Active Grant

• Current Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: Zhang, Hang, Senarath, Nimal Gamini, Callard, Aaron James, Farmanbar, Hamidreza, Dao, Ngoc Dung, Stephenne, Alex, Djukic, Petar, Li, Xu, Shafiee, Kaveh, Leroux, Philippe
• Primary Examiner(s): Haile, Awet
• Application Number:
  US15/583,824
• Publication Number:
  US 20170237625A1
• Time in Patent Office: 841 Days
• CPC Class Codes: H04L 41/0816 the condition being an adaptation, e.g. in response to network events
• CPC Class Codes: H04L 41/0896 Bandwidth or capacity management, i.e. automatically increasing or decreasing capacities flow or congestion control using dynamic resource allocation, e.g. in-call renegotiation, H04L47/76
• CPC Class Codes: H04L 41/12 Discovery or management of network topologies
• CPC Class Codes: H04L 41/147 for predicting network behaviour
• CPC Class Codes: H04L 41/5067 Customer-centric QoS measurements
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition
• CPC Class Codes: H04W 28/0284 detecting congestion or overload during communication monitoring arrangements H04L43/00
• CPC Class Codes: H04W 28/0289 Congestion control load shedding arrangements in network planning H04W16/08; performing reselection for handling the traffic H04W36/22; wireless traffic scheduling H04W72/12
• CPC Class Codes: H04W 28/0958 based on metrics or performance parameters
• CPC Class Codes: H04W 28/18 Negotiating wireless communication parameters
• CPC Class Codes: H04W 72/52 based on load
• CPC Class Codes: H04W 84/105 PBS [Private Base Station] network H04W84/12 - H04W84/16 take precedence
• CPC Class Codes: H04W 92/04 Interfaces between hierarchically different network devices
• CPC Class Codes: Y04S 40/00 Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them

Abstract

A method for agile wireless access network includes determining, by a network controller, capabilities and neighborhood relations of radio nodes in the radio access network. The network controller then configures a backhaul network infrastructure for the radio access network in accordance with the capabilities and the neighborhood relations of the radio nodes.

Claims

1. A method for dynamically configuring a radio access network (RAN) associated with a wireless network, the method comprising:

receiving, at a network infrastructure controller, an indication of a change in traffic load in a part of the RAN;

selecting, by the network infrastructure controller, a node from nodes associated with a private network in accordance with the part of the RAN associated with the indication, in accordance with information associated with the indication, and in accordance with characteristics of the nodes stored in a private radio node database, the characteristics of the nodes comprising energy consumption information associated with the nodes;

dynamically reconfiguring, by the network infrastructure controller, a backhaul network infrastructure of the RAN, wherein the dynamically reconfiguring comprises;

transmitting an instruction, from the network infrastructure controller to the selected node, to add the selected node to the RAN or to remove the selected node from the RAN to change a topology of the RAN for serving a plurality of UEs in accordance with the change in traffic load in the part of the RAN; and

transmitting, from the network infrastructure controller to a traffic engineering controller, a notification of a change in the topology of the RAN caused by the instruction to add or remove the selected node from the RAN.

2. The method of claim 1, further comprising identifying, by the network infrastructure controller, network traffic conditions in the RAN, wherein selecting the selected node comprises selecting the selected node in accordance with the network traffic conditions.

3. The method of claim 2, wherein identifying the network traffic conditions comprises receiving, from a network status analyzer, information obtained when the network status analyzer performs at least one of:

monitoring network traffic load;

predicting network traffic load;

predicting network traffic migration;

detecting congestion;

or

detecting delivered quality of experience (QoE) levels.

4. The method of claim 1, wherein selecting the selected node comprises:

identifying potential privately deployed radio nodes for integration into the RAN;

negotiating integration terms with the potential privately deployed radio nodes; and

activating a logical interface between the RAN and a control plane of at least one potential privately deployed radio node.

5. The method of claim 4, wherein at least one potential privately deployed radio node comprises a mobile privately deployed radio node.

6. The method of claim 1, wherein the RAN comprises a node database identifying each of a plurality of operator deployed radio nodes in the RAN and information regarding each of the plurality of operator deployed radio nodes, wherein the information comprises information on at least one of operator deployed radio node capability, energy supply type, neighborhood relations, or location.

7. The method of claim 6, wherein the information on operator deployed radio node capability comprises information on at least one of a number of backhaul ports at the operator deployed radio node, communications standards supported by the operator deployed radio node, radio frequency capability in an access link, radio frequency capability in a backhaul link, or storage capacity.

8. The method of claim 1, further comprising adapting, by the network infrastructure controller, wireline backhaul connections and multi-hop backhaul connections for a plurality of operator deployed radio nodes in the RAN in accordance with capabilities and neighborhood relations of the operator deployed radio nodes, network resource utilization information, and locations of the operator deployed radio nodes.

9. The method of claim 8, wherein adapting the wireline backhaul connections and the multi-hop backhaul connections comprises adapting the wireline backhaul connections and the multi-hop backhaul connections sequentially.

10. The method of claim 8, wherein adapting the wireline backhaul connections and the multi-hop backhaul connections comprises configuring one or more alternative backhaul network infrastructure topographies and selecting one of the one or more alternative backhaul network infrastructure topographies.

11. The method of claim 1, further comprising:

in response to the selecting in accordance with characteristics of the nodes comprising the energy consumption information associated with the nodes;

changing the topology of the RAN by adapting backhaul connections for radio nodes in the RAN for serving the plurality of UEs.

12. A network controller comprising:

a processor; and

a non-transitory computer readable storage medium storing programming for execution by the processor, the programming including instructions to;

receive an indication of a change in traffic load in a part of a radio access network (RAN) associated with a wireless network;

select a node from nodes associated with a private network in accordance with the part of the RAN associated with the indication, in accordance with information associated with the indication, and in accordance with characteristics of the nodes stored in a private radio node database, the characteristics of the nodes comprising energy consumption information associated with the nodes;

dynamically reconfigure a backhaul network infrastructure of the RAN, wherein the instructions to dynamically reconfigure the backhaul network infrastructure comprise instructions to;

transmit an instruction to the selected node to add the selected node to the RAN or to remove the selected node from the RAN to change a topology of the RAN for serving a plurality of UEs in accordance with the change in traffic load in the part of the RAN; and

transmit to a traffic engineering controller a notification of a change in the topology of the RAN caused by the instruction to add or remove the selected node from the RAN.

13. The network controller of claim 12, wherein the programming further includes instructions to identify network traffic conditions in the RAN, wherein selecting the selected node comprises selecting the selected node in accordance with the network traffic conditions.

14. The network controller of claim 13, wherein identifying the network traffic conditions comprises receiving, from a network status analyzer, information obtained when the network status analyzer performs at least one of:

monitoring network traffic load;

predicting network traffic load;

predicting network traffic migration;

detecting congestion;

or

detecting delivered quality of experience (QoE) levels.

15. The network controller of claim 12, wherein selecting the selected node comprises:

identifying potential privately deployed radio nodes for integration into the RAN;

negotiating integration terms with the potential privately deployed radio nodes; and

activating a logical interface between the RAN and a control plane of at least one potential privately deployed radio node.

16. The network controller of claim 15, wherein at least one potential privately deployed radio node comprises a mobile privately deployed radio node.

17. The network controller of claim 12, wherein the RAN comprises a node database identifying each of a plurality of operator deployed radio nodes in the RAN and information regarding each of the plurality of operator deployed radio nodes, wherein the information comprises information on at least one of operator deployed radio node capability, energy supply type, neighborhood relations, or location.

18. The network controller of claim 17, wherein the information on operator deployed radio node capability comprises information on at least one of a number of backhaul ports at the operator deployed radio node, communications standards supported by the operator deployed radio node, radio frequency capability in an access link, radio frequency capability in a backhaul link, or storage capacity.

19. The network controller of claim 12, wherein the programming includes further instructions to adapt wireline backhaul connections and multi-hop backhaul connections for a plurality of operator deployed radio nodes in the RAN in accordance with capabilities and neighborhood relations of the operator deployed radio nodes, network resource utilization information, and locations of the operator deployed radio nodes.

20. The network controller of claim 19, wherein adapting the wireline backhaul connections and the multi-hop backhaul connections comprises adapting the wireline backhaul connections and the multi-hop backhaul connections sequentially.

21. The network controller of claim 19, wherein adapting the wireline backhaul connections and the multi-hop backhaul connections comprises configuring one or more alternative backhaul network infrastructure topographies and selecting one of the one or more alternative backhaul network infrastructure topographies.

22. A non-transitory computer-readable device having instructions stored thereon that, when executed by at least one computing device, cause the at least one computing device to perform operations for dynamically configuring a radio access network (RAN) associated with a wireless network, the operations comprising:

receiving an indication of a change in traffic load in a part of the RAN;

selecting a node from nodes associated with a private network in accordance with the part of the RAN associated with the indication, in accordance with information associated with the indication, and in accordance with characteristics of the nodes stored in a private radio node database, the characteristics of the nodes comprising energy consumption information associated with the nodes;

dynamically reconfiguring a backhaul network infrastructure of the RAN, wherein the dynamically reconfiguring comprises;

transmitting an instruction, to the selected node, to add the selected node to the RAN or to remove the selected node from the RAN to change a topology of the RAN for serving a plurality of UEs in accordance with the change in traffic load in the part of the RAN; and

transmitting, to a traffic engineering controller, a notification of a change in the topology of the RAN caused by the instruction to add or remove the selected node from the RAN.