Technique for troubleshooting remote cellular base station radios from the network management platform using local wireless hotspot at the radio site

• US 9,055,461 B2
• Filed: 06/26/2013
• Issued: 06/09/2015
• Est. Priority Date: 03/28/2013
• Status: Active Grant

• Current Assignee: Telefonaktiebolaget LM Ericsson
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: Griffioen, Robert
• Primary Examiner(s): Chou, Albert T
• Application Number:
  US13/927,417
• Publication Number:
  US 20140293768A1
• Time in Patent Office: 713 Days
• US Class Current: 1/1
• CPC Class Codes: H04W 24/00 Supervisory, monitoring or testing arrangements
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition
• CPC Class Codes: H04W 88/08 Access point devices
• CPC Class Codes: H04W 92/12 between access points and access point controllers

Abstract

Systems and methods are provided for first-level debugging for a radio equipment of a base station using a local wireless hotspot created by another radio equipment of the base station in local wireless proximity to the radio equipment. In one embodiment, a network management system is remotely connected to a Radio Equipment Controller (REC) of a base station in a cellular communications network. The network management system determines that there is a loss of communication between the REC and a first Remote Radio Equipment (RRE) of the base station. The network management system causes a second RRE of the base station to create a local wireless hotspot and then obtains debug information for the first RRE that is obtained by the second RRE via the local wireless hotspot. The network management system then utilizes the debug information for the first RRE.

Claims

1. A method of operation of a network management system that is remotely connected to a radio equipment controller of a base station in a cellular communications network, comprising:

determining that there is a loss of communication between the radio equipment controller and a first remote radio equipment of the base station;

causing a second remote radio equipment of the base station to create a local wireless hotspot;

obtaining debug information for the first remote radio equipment obtained by the second remote radio equipment via the local wireless hotspot; and

utilizing the debug information.

2. The method of claim 1 wherein utilizing the debug information comprises programmatically determining a cause of the loss of communication between the radio equipment controller and the first remote radio equipment of the base station.

3. The method of claim 2 wherein the debug information comprises information that indicates that the first remote radio equipment is connected to the local wireless hotspot, and programmatically determining the cause of the loss of communication comprises programmatically determining that the loss of communication is due to a cable failure between the first remote radio equipment and the radio equipment controller.

4. The method of claim 2 wherein the debug information comprises information that indicates that the first remote radio equipment is not connected to the local wireless hotspot, and programmatically determining the cause of the loss of communication comprises programmatically determining that the loss of communication is due to a failure of the first remote radio equipment.

5. The method of claim 1 wherein utilizing the debug information comprises presenting the debug information to an operator of the network management system.

6. The method of claim 5 wherein the debug information is indicative of whether the first remote radio equipment is connected to the local wireless hotspot.

7. The method of claim 1 wherein the debug information is indicative of whether the first remote radio equipment is connected to the local wireless hotspot.

8. The method of claim 7 wherein no connection of the first remote radio equipment to the local wireless hotspot is indicative of a failure of the first remote radio equipment.

9. The method of claim 7 wherein connection of the first remote radio equipment to the local wireless hotspot is indicative of a failure of a cable that interconnects the first remote radio equipment and the radio equipment controller.

10. The method of claim 1 wherein causing the second remote radio equipment to create the local wireless hotspot comprises instructing the second remote radio equipment, via the radio equipment controller, to create the local wireless hotspot.

11. The method of claim 1 wherein obtaining the debug information comprises:

instructing the second remote radio equipment, via the radio equipment controller, to query the first remote radio equipment via the local wireless hotspot; and

receiving the debug information from the second remote radio equipment, via the radio equipment controller, in response to instructing the second remote radio equipment to query the first remote radio equipment via the local wireless hotspot.

12. The method of claim 11 wherein the debug information comprises information that is indicative of the first remote radio equipment being connected to the local wireless hotspot if the query is successful and comprises information that is indicative of the first remote radio equipment not being connected to the local wireless hotspot if the query is unsuccessful.

13. A network management system for remotely debugging a remote radio equipment of a base station in a cellular communications network, comprising:

a network interface configured to communicatively couple the network management system to a radio equipment controller of the base station via a network; and

a processing subsystem associated with the network interface and configured to;

determine that there is a loss of communication between the radio equipment controller and a first remote radio equipment of the base station;

cause a second remote radio equipment of the base station to create a local wireless hotspot;

obtain, via the radio equipment controller, debug information for the first remote radio equipment obtained by the second remote radio equipment via the local wireless hotspot; and

utilize the debug information.

14. A method of operation of a remote radio equipment of a base station in a cellular communications network, comprising:

receiving a request to create a local wireless hotspot;

creating the local wireless hotspot in response to the request to create the local wireless hotspot;

obtaining debug information for a second remote radio equipment of the base station via the local wireless hotspot; and

sending the debug information to a remote network management system.

15. The method of claim 14 wherein the debug information comprises information that is indicative of whether the second remote radio equipment is connected to the local wireless hotspot.

16. The method of claim 14 wherein obtaining the debug information comprises:

receiving an instruction to query the second remote radio equipment of the base station via the local wireless hotspot; and

querying the second remote radio equipment via the local wireless hotspot.

17. The method of claim 16 wherein the debug information comprises information that indicates that the second remote radio equipment is not connected to the local wireless hotspot if the query is not successful.

18. The method of claim 16 wherein the debug information comprises information that indicates that the second remote radio equipment is connected to the local wireless hotspot if the query is successful.

19. A remote radio equipment of a base station in a cellular communications network, comprising:

an interface to a radio equipment controller that communicatively couples the remote radio equipment to the radio equipment controller via a cable;

a local wireless subsystem; and

a controller associated with the interface and the local wireless subsystem configured to;

receive a request to create a local wireless hotspot from the radio equipment controller via the interface;

create the local wireless hotspot in response to the request to create the local wireless hotspot using the local wireless subsystem;

obtain debug information for a second remote radio equipment of the base station via the local wireless hotspot; and

send the debug information to a remote network management system via the radio equipment controller.

20. The remote radio equipment of claim 19 wherein the debug information comprises information that is indicative of whether the second remote radio equipment is connected to the local wireless hotspot.