Systems and methods for controlling a frequency band of operation of a base station

• US 8,892,102 B2
• Filed: 07/30/2012
• Issued: 11/18/2014
• Est. Priority Date: 07/30/2012
• Status: Active Grant

• Current Assignee: Telefonaktiebolaget LM Ericsson
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: Smiley, Russell Clifford
• Primary Examiner(s): RAMPURIA, SHARAD K
• Application Number:
  US13/561,348
• Publication Number:
  US 20140031042A1
• Time in Patent Office: 841 Days
• Field of Search: 455/62, 455/422.1, 455/423, 455/424, 455/454, 455/455, 455/552.1, 455/553.1, 455436-444, 455450-453, 370/329, 370331-338, 370352-356, 370/401
• US Class Current: 455/438
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition
• CPC Class Codes: H04W 36/22 for handling the traffic
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

The present disclosure relates to controlling a frequency band of operation of one or more base stations in a cellular communication network based on associated parameters of air interfaces of the one or more base stations. In one embodiment, a control element of the cellular communication network obtains parameters for an air interface of a base station. In addition, in some embodiments, the control element obtains one or more parameters for air interfaces of one or more additional base stations. Using the one or more parameters, the control element obtains a decision to switch a frequency band of operation of the base station from a first frequency band to a second frequency band. In response, the control element sends a command to the base station to switch the frequency band of operation of the base station from the first frequency band to the second frequency band.

Claims

1. A network controller in a cellular communication network comprising:

a communication subsystem; and

a control subsystem associated with the communication subsystem configured to;

obtain one or more parameters for an air interface of a radio unit of a base station;

if one or more predefined criteria are satisfied;

provide the one or more parameters for the air interface to a command center in the cellular communication network; and

in response, receive a decision to switch a frequency band of operation of the radio unit of the base station from a first frequency band to a second frequency band from the command center; and

if the one or more predefined criteria are not satisfied, programmatically make the decision to switch the frequency band of operation of the radio unit of the base station from the first frequency band to the second frequency band based on the one or more parameters for the air interface; and

provide a command to the base station to switch the frequency band of operation of the radio unit of the base station from the first frequency band to the second frequency band in response to the decision.

2. The network controller of claim 1 wherein the one or more parameters for the air interface comprise one or more parameters that are indicative of a congestion level for the air interface.

3. The network controller of claim 1 wherein the one or more parameters for the air interface comprise one or more parameters that are indicative of a data rate for the air interface.

4. The control network controller of claim 1 wherein the one or more parameters for the air interface comprise a number of wireless devices served by the air interface.

5. The network controller of claim 1 wherein the one or more parameters for the air interface comprise one or more parameters that are indicative of interference experienced on the air interface.

6. The network controller of claim 1 wherein the one or more parameters for the air interface comprise one or more parameters that are indicative of emissions levels of the radio unit that provides the air interface.

7. The network controller of claim 1 wherein the one or more parameters for the air interface comprise one or more parameters that are indicative of an amount of hand-off failures on the air interface.

8. The network controller of claim 1 wherein the one or more parameters for the air interface comprise one or more parameters that are indicative of a computation load in the base station.

9. The network controller of claim 1 wherein the control subsystem is further configured to provide information indicative of an air interface emissions specification for the second frequency band to the base station.

10. The network controller of claim 1 wherein the control subsystem is further configured to receive one or more parameters for air interfaces of radio units of one or more additional base stations, and obtain a decision to switch a frequency band of operation of the radio units of the one or more additional base stations from the first frequency band to the second frequency band based on the one or more parameters of the air interface of the radio unit of the base station and the one or more parameters for the air interfaces of the radio units of the one or more additional base stations.

11. A non-transitory computer-readable medium embodied in an article of manufacture encoded with instructions for directing a processor of a network controller in a cellular communication network to:

obtain one or more parameters for an air interface of a radio unit of a base station;

if one or more predefined criteria are satisfied;

provide the one or more parameters for the air interface to a command center in the cellular communication network; and

in response, receive a decision to switch a frequency band of operation of the radio unit of the base station from a first frequency band to a second frequency band from the command center;

if the one or more predefined criteria are not satisfied, programmatically make the decision to switch the frequency band of operation of the radio unit of the base station from the first frequency band to the second frequency band based on the one or more parameters for the air interface; and

provide a command to the base station to switch the frequency band of operation of the radio unit of the base station from the first frequency band to the second frequency band in response to the decision.

12. A method of operation of a network controller in a cellular communication network, comprising:

obtaining one or more parameters for an air interface of a radio unit of a base station;

if one or more predefined criteria are satisfied;

providing the one or more parameters for the air interface to a command center in the cellular communication network; and

in response, receiving a decision to switch a frequency band of operation of the radio unit of the base station from a first frequency band to a second frequency band from the command center;

if the one or more predefined criteria are not satisfied, programmatically making the decision to switch the frequency band of operation of the radio unit of the base station from the first frequency band to the second frequency band based on the one or more parameters for the air interface; and

providing a command to the base station to switch the frequency band of operation of the radio unit of the base station from the first frequency band to the second frequency band in response to the decision.