System and method for an agile wireless access network

• US 9,642,146 B2
• Filed: 11/01/2013
• Issued: 05/02/2017
• 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:
  US14/069,948
• Publication Number:
  US 20140362688A1
• Time in Patent Office: 1,278 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 system and method for agile wireless access network is provided. A method embodiment for agile radio access network management 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 agile radio access network management comprising:

obtaining, by the network controller, information about backhaul network infrastructure for a radio access network, including information about capabilities, locations, and neighborhood relations of the radio nodes in the radio access network, information about multi-hop backhaul connections among the radio nodes, and information about wireline backhaul connections between the radio nodes and a core backhaul network;

determining, by the network controller, network resource utilization information, the network resource utilization information comprising utilization information of hard spectral resources for the wireline backhaul connections and soft spectral resources for the radio nodes;

adapting, by the network controller, the wireline backhaul connections and the multi-hop backhaul connections for the radio nodes in accordance with the capabilities and the neighborhood relations of the radio nodes, the network resource utilization information, and the locations of the radio nodes;

updating, by the network controller, the backhaul network infrastructure and the network resource utilization information in response to adapting the wireline backhaul connections and the multi-hop backhaul connections; and

storing, by the network controller, the updated backhaul network infrastructure and the updated network resource utilization information in a database accessible to the network controller.

2. The method of claim 1, 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.

3. The method of claim 1, 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.

4. The method of claim 1, wherein the capabilities and the neighborhood relations of the radio nodes are stored in a node database.

5. The method of claim 1, further comprising storing the backhaul network infrastructure for the radio access network in a topography database.

6. The method of claim 1, further comprising identifying, by the network controller, network traffic conditions in the radio access network, wherein adapting the wireline backhaul connections and the multi-hop backhaul connections further comprises adapting the wireline backhaul connections and the multi-hop backhaul connections in accordance with the network traffic conditions.

7. The method of claim 6, wherein identifying the network traffic conditions comprises using a network status analyzer to monitor network traffic load, predict network traffic load, predict network traffic migration, detect congestion, detect delivered quality of experience (QoE) levels, or a combination thereof.

8. The method of claim 6 further comprising integrating, by the network controller, one or more privately deployed radio nodes in the backhaul network infrastructure in accordance with the network traffic conditions.

9. The method of claim 8 further comprising storing information on the one or more privately deployed radio nodes in a private node database.

10. The method of claim 8, wherein integrating the one or more privately deployed radio nodes comprises identifying potential privately deployed radio nodes for integration, negotiating integration terms with the one or more privately deployed radio nodes, and activating a logical interface between the radio access network and control planes of each of the one or more privately deployed radio nodes.

11. The method of claim 8 further comprising releasing the one or more privately deployed radio nodes in accordance with network traffic conditions or integration conditions.

12. The method of claim 6 further comprising configuring, by the network controller, one or more access links in the agile radio access network in accordance with the network traffic conditions.

13. The method of claim 6, wherein adapting the wireline backhaul connections and the multi-hop backhaul connections comprises adding a backhaul link.

14. The method of claim 6, wherein adapting the wireline backhaul connections and the multi-hop backhaul connections comprises removing a backhaul link.

15. The method of claim 6, wherein adapting the wireline backhaul connections and the multi-hop backhaul connections comprises steering a backhaul link.

16. The method of claim 6, wherein adapting the wireline backhaul connections and the multi-hop backhaul connections comprises adding a carrier to endpoints of a backhaul link.

17. The method of claim 1, further comprising storing the network resource utilization information in a resource pool database, wherein the utilization information of hard spectral resources comprises one of a total number of ports for the wireline backhaul connections at each radio node, a number of ports for the wireline backhaul connections currently in use at each radio node, or a number of available ports for the wireline backhaul connections at each radio node, and wherein the utilization information of the soft spectral resources comprises an allocation of bandwidth or carriers among the radio nodes.

18. 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;

obtain information about backhaul network infrastructure for a radio access network, including information about capabilities, locations and neighborhood relations of the radio nodes in the radio access network, information about multi-hop backhaul connections among the radio nodes, and information about wireline backhaul connections between the radio nodes and a core backhaul network;

determine network resource utilization information, the network resource utilization information comprising utilization information of hard spectral resources for the wireline backhaul connections and soft spectral resources for the radio nodes;

adapt the wireline backhaul connections and the multi-hop backhaul connections for the radio nodes in accordance with the capabilities and the neighborhood relations of the radio nodes, the network resource utilization information, and the locations of the radio nodes;

update the backhaul network infrastructure and the network resource utilization information in response to adaption of the wireline backhaul connections and the multi-hop backhaul connections; and

store the updated backhaul network infrastructure and the updated network resource utilization information in a database accessible to the network controller.

19. The network controller of claim 18, wherein the programming includes further instructions to identify network traffic conditions in the area of the radio access network, wherein the instructions to adapt the wireline backhaul connections and the multi-hop backhaul connections comprise further instructions to adapt the wireline backhaul connections and the multi-hop backhaul connections in accordance with the network traffic conditions.

20. The network controller of claim 19, wherein the radio nodes comprise a plurality of operator deployed radio nodes providing terminal specific access links to terminals in the area of the radio access network, wherein the programming includes further instructions to configure the access links in accordance with the network traffic condition.

21. The network controller of claim 20, wherein the plurality of operator deployed radio nodes comprises densely deployed low power radio nodes.

22. The network controller of claim 20, wherein the radio access network further comprises a node database identifying each of the plurality of operator deployed radio nodes and information regarding each of the plurality of operator deployed radio nodes, wherein the information comprises information on radio node capability, energy supply type, neighborhood relations, location, or a combination thereof.

23. The network controller of claim 22, wherein the information on radio node capability comprises information on a number of backhaul ports at a radio node, communications standards supported by the radio node, radio frequency capability in an access link, radio frequency capability in a backhaul link, storage capacity, or a combination thereof.

24. The network controller of claim 19, wherein the radio nodes comprise one or more privately deployed radio nodes and wherein the instructions to adapt the wireline backhaul connections and the multi-hop backhaul connections comprise further instructions to integrate the one or more privately deployed radio nodes in accordance with the network traffic conditions.

25. The network controller of claim 24, wherein the one or more privately deployed radio nodes comprise a mobile privately deployed radio node.

26. 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, from a network status analyzer, network traffic conditions in an area of a radio access network controlled by the network controller;

receive information from a node database about capabilities and neighborhood relations for radio nodes in the area of the radio access network, and locations of the radio nodes in the area;

receive information from a private node database about availability of privately deployed radio nodes in the radio access network;

receive from a resource pool database available to the network controller, network resource utilization information of the area of the radio access network, the network resource utilization information including information about hard spectral resources available to each of the radio nodes;

reconfigure wireline backhaul connections and multi-hop backhaul connections in a backhaul network infrastructure for the area of the radio access network in accordance with the network traffic conditions, the capabilities of the radio nodes, the neighborhood relations of the radio nodes, the availability of the privately deployed radio nodes, the locations of the radio nodes in the radio access network, and the network resource utilization information, wherein the wireline backhaul connections link the radio nodes and a core backhaul network, wherein the multi-hop backhaul connections provide connections among the radio nodes;

transmit information about the backhaul network infrastructure to one or more end user terminals, one or more radio nodes, one or more privately deployed radio nodes, and an entity within a control plane of the area of the radio access network; and

update the resource pool database and a topography database with the backhaul network infrastructure in response to the reconfiguration of the wireline backhaul connections and the multi-hop backhaul connections.

27. A method for execution by a network controller in a radio access network, the method comprising:

receiving network traffic conditions associated with an area of the radio access network associated with the network controller;

receiving information about locations of radio access nodes in the area of the radio access network, along with capabilities and neighborhood relations associated with the radio access nodes;

receiving information about availability of privately deployed radio nodes in the radio access network;

receiving network resource utilization information associated with the area of the radio access network, comprising information associated with hard spectral resources available to each of the radio nodes in the area;

transmitting instructions to reconfigure wireline and multi-hop backhaul connections in a backhaul network within the area of the radio access network in accordance with the network traffic conditions, the capabilities of the radio nodes, the neighborhood relations of the radio nodes, the availability of the privately deployed radio nodes, the locations of the radio nodes in the radio access network, and the network resource utilization information, wherein the wireline backhaul connections link the radio nodes and a core backhaul network, and wherein the multi-hop backhaul connections provide connections among the radio nodes;

transmitting information about the backhaul network infrastructure to one or more end user terminals, one or more radio node, one or more privately deployed radio nodes and an entity within a control plane associated with the area of the radio access network; and

transmitting update information in response to the reconfiguration of the wireline and multi-hop backhaul connections.