Software-defined network infrastructure having virtual range extenders

• US 9,461,729 B2
• Filed: 12/13/2013
• Issued: 10/04/2016
• Est. Priority Date: 12/13/2013
• 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: Djukic, Petar, Maaref, Amine, Zhang, Hang
• Primary Examiner(s): RENNER, BRANDON M
• Application Number:
  US14/106,483
• Publication Number:
  US 20150171953A1
• Time in Patent Office: 1,026 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: H04B 7/15507 Relay station based processing for cell extension or control of coverage area, network planning with network coordinated processing with regard to cell extension H04W16/26; network topologies using dedicated repeater stations H04W84/047; terminal devices adapted for relaying to or from an other terminal H04W88/04
• CPC Class Codes: H04L 41/12 Discovery or management of network topologies
• CPC Class Codes: H04L 41/122 of virtualised topologies, e.g. software-defined networks [SDN] or network function virtualisation [NFV]
• CPC Class Codes: H04W 16/26 Cell enhancers or enhancement, e.g. for tunnels, building shadow
• CPC Class Codes: H04W 28/24 Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service]
• CPC Class Codes: H04W 4/50 Service provisioning or reconfiguring
• CPC Class Codes: H04W 40/16 based on interference
• CPC Class Codes: H04W 40/205 using topographical information, e.g. hills, high rise buildings
• CPC Class Codes: H04W 84/047 using dedicated repeater stations
• CPC Class Codes: H04W 88/04 adapted for relaying to or from another terminal or user

Abstract

An embodiment method includes selecting, by a network infrastructure manager, a first user equipment (UE) as a destination UE and selecting a second UE as a relay UE for the destination UE. The method further includes negotiating installation of a virtual range extender (vREX) UE on the destination UE, and negotiating installation of a vREX forwarding agent (FA) on the relay UE. The vREX FA is configured to act as a FA for the vREX UE.

Claims

1. A method for network infrastructure manager operations in a network comprising:

estimating long-term signal to noise ratios (SINRs) for user equipments (UEs) in the network in accordance with network topology information of the network and channel quality feedback from UEs in the network;

selecting, by the network infrastructure manager, a first UE as a destination UE in accordance with the long-term SINRs;

selecting, by the network infrastructure manager, a second UE as a relay UE for the destination UE;

transmitting a first request to cause installation of a virtual range extender (vREX) UE on the destination UE;

transmitting a second request to cause installation of a vREX forwarding agent (FA) on the relay UE, wherein the vREX FA is configured to act as a FA for the vREX UE;

transmitting, by the network infrastructure manager to a network control plane, a network topology comprising the vREX UE and the vREX FA;

receiving, by the network infrastructure manager from the network control plane, transmission forwarding paths for the network; and

reconfiguring, by the network infrastructure manager, the vREX UE and the vREX FA in accordance with the transmission forwarding paths.

2. The method of claim 1, further comprising, prior to instructing installation of the vREX FA, offering one or more installation incentives to the relay UE.

3. The method of claim 2, wherein the one or more installation incentives comprises a reduced price for access to the network, a higher priority level for relay UE traffic, or a combination thereof.

4. The method of claim 1, further comprising, after instructing installation of the vREX UE and the vREX FA, receiving respective acknowledgements indicating successful installations of the vREX UE and the vREX FA.

5. The method of claim 1, further comprising:

storing the network topography information and channel quality feedback in a network conditions database; and

monitoring the network conditions database.

6. The method of claim 1, wherein selecting the first UE as the destination UE comprises selecting the first UE in accordance with network status information and historic channel condition information for the network.

7. The method of claim 1, wherein selecting the second UE as the relay UE comprises selecting a potential relay UE within transmission range of the destination UE.

8. The method of claim 1, wherein selecting the second UE as the relay UE comprises selecting a potential relay UE having a shortest pathway between a network gateway through the potential relay UE to the destination UE.

9. The method of claim 1 further comprising dynamically reconfiguring a plurality of vREX FAs and/or vREX UEs in accordance with the network topology, transmission channel quality, quality of service requirements, or a combination thereof.

13. The method of claim 1 further comprising:

prior to instructing installation of the vREX UE on the destination UE, negotiating installation of the vREX on the destination UE; and

prior to instructing installation of the vREX FA on the relay UE, negotiating installation of the vREX FA on the relay UE.

10. A network infrastructure manager comprising:

a processor; and

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

estimate long-term signal to noise ratios (SINRs) for user equipments (UEs) in a network in accordance with network topology information of the network and channel quality feedback from UEs in the network;

select a first UE in the network as a destination UE in accordance with the long-term SINRs;

select a second UE in the network as a relay UE for the destination UE;

transmit a first request to cause installation of a virtual range extender (vREX) UE on the destination UE;

transmit a second request to cause installation of a vREX forwarding agent (FA) on the relay UE, wherein the vREX FA is configured to act as a FA for the vREX UE;

transmit, to a network control plane, a network topology comprising the vREX UE and the vREX FA;

receive, from the network control plane, transmission forwarding paths for the network; and

reconfigure the vREX UE and the vREX FA in accordance with the transmission forwarding paths.

11. The network infrastructure manager of claim 10, wherein the programming includes further instructions to receive respective acknowledgements indicating successful installations of the vREX UE and the vREX FA.

12. The network infrastructure manager of claim 11, wherein the network control plane comprises a software defined network (SDN) controller and a software defined protocol (SDP) controller, wherein the SDN controller is configured to perform traffic engineering for the network using the network topology, and wherein the SDP controller is configured to provision one or more protocols for the vREX UE and the vREX FA.

14. The network infrastructure manager of claim 10, wherein the programming includes further instructions to:

negotiate installation of the vREX on the destination UE prior to the instructions to install of the vREX UE on the destination UE; and

negotiate installation of the vREX FA on the relay UE prior to the instructions to instruct installation of the vREX FA on the relay UE.

15. The network infrastructure manager of claim 10, wherein the programming includes further instructions to, prior to instructing installation of the vREX FA, offer one or more installation incentives to the relay UE.

16. The network infrastructure manager of claim 10, wherein the instructions to select the first UE as the destination UE comprise instructions to select the first UE in accordance with network topography information of the network and channel quality feedback from UEs in the network.

17. The network infrastructure manager of claim 10, wherein the instructions to select the first UE as the destination UE comprise instructions to select the first UE in accordance with network status information and historic channel condition information for the network.

18. The network infrastructure manager of claim 10, wherein the instructions to select the second UE as the relay UE comprise instructions to select a potential relay UE within transmission range of the destination UE.

19. The network infrastructure manager of claim 10, wherein instructions to select the second UE as the relay UE comprise instructions to select a potential relay UE having a shortest pathway between a network gateway through the potential relay UE to the destination UE.

20. The network infrastructure manager of claim 10 wherein the programming includes further instructions to:

store the network topography information and channel quality feedback in a network conditions database; and

monitor the network conditions database.