CELLULAR SERVICE WITH IMPROVED SERVICE AVAILABILITY

• US 20110237238A1
• Filed: 03/26/2010
• Published: 09/29/2011
• Est. Priority Date: 03/26/2010
• Status: Active Grant

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Corporation
• Inventors: Reed, Danny Allen, Hassan, Amer A., Anders, Billy R. JR.
• Granted Patent: US 8,185,120 B2
• Time in Patent Office: Days
• US Class Current: 455/422.1
• CPC Class Codes: H04L 47/28 in relation to timing considerations
• CPC Class Codes: H04M 15/8022 Determining tariff or charge band
• CPC Class Codes: H04M 15/8027 based on network load situation
• CPC Class Codes: H04M 15/8044 Least cost routing
• CPC Class Codes: H04M 15/8055 Selecting cheaper transport technology for a given service
• CPC Class Codes: H04M 15/8061 Selecting least cost route depending on origin or type of service
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• 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 28/20 Negotiating bandwidth
• CPC Class Codes: H04W 36/14 Reselecting a network or an air interface
• CPC Class Codes: H04W 36/22 for handling the traffic
• CPC Class Codes: H04W 4/24 Accounting or billing
• CPC Class Codes: H04W 72/00 Local resource management
• CPC Class Codes: H04W 72/1215 for collaboration of different radio technologies
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
• CPC Class Codes: H04W 88/08 Access point devices
• CPC Class Codes: H04W 88/10 adapted for operation in multiple networks, e.g. multi-mode access points

Abstract

A cellular communication system in which overload of a base station is averted by offering users the option to communicate using a spectrum outside of the spectrum allocated for cellular communication. Incentives are offered to connect to the base station using the alternative spectrum, which may not support communications at the same rate as could be supported using the spectrum allocated to the base station for cellular communications. Users may be selected to receive an offer to receive incentives based on range to the base station, with users closer to the base station being more likely to receive such an offer. The cellular communications system may be a 3G wireless system and the alternative spectrum may be white space in the digital TV spectrum.

Claims

1. A method of operating a communication service of the type that comprises at least one base station adapted for exchanging communications with multiple mobile devices within a region, the method comprising:

during a first interval, exchanging communications with each of a first plurality of mobile devices within the region, the communications with the plurality of devices collectively using a first amount of bandwidth within a licensed spectrum assigned to the base station;

in a second interval during which the region contains a second plurality of mobile devices, determining that a trigger condition exists based on the second plurality of mobile devices; and

when it is determined that a trigger condition exists, exchanging communications with a first portion of the second plurality of mobile devices using the licensed spectrum and exchanging communications with a second portion of the second plurality of mobile devices using an alternative frequency, the alternative frequency spectrum being different than the first licensed spectrum.

2. The method of claim 1, wherein:

exchanging communications with a first portion of the second plurality of mobile devices using the licensed spectrum comprises communicating in accordance with a 3G standard; and

exchanging communications with a second portion of the second plurality of mobile devices using the alternative frequency spectrum comprises exchanging communications using a digital TV channel that is unassigned in the region.

3. The method of claim 1, further comprising:

selecting the second portion of the second plurality of mobile devices based at least in part on position within the region.

4. The method of claim 3, wherein the selecting the second portion comprises identifying mobile devices of the second plurality of mobile devices that are less than a threshold distance from the base station.

5. The method of claim 4, further comprising:

determining the threshold distance based on one or more of time of day and total bandwidth used by communications exchanged with the base station at the second time.

6. The method of claim 1, wherein:

the method further comprises receiving a request from a mobile device to initiate communication with the base station; and

the determining at the second time occurs in response to receiving the request.

7. The method of claim 6, further comprising:

in response to the request, sending to the mobile device, a communication indicating an option to communicate using the alternative frequency spectrum;

receiving a response to the option; and

charging for communications exchanged with the mobile device, the charging comprising charging at a lower rate when the response to the option indicates an election to communicate using the alternative frequency spectrum than when the response to the option indicates an election to communicate using the licensed spectrum.

8. The method of claim 1, wherein:

determining that the trigger condition exists comprises determining that the region contains a second plurality of mobile devices such that exchanging communications with the second plurality of mobile devices using the first licensed spectrum would consume a second amount of bandwidth, the second amount of bandwidth exceeding a threshold; and

when it is determined that the trigger condition exists, exchanging communications with the second portion of the second plurality of mobile devices comprises exchanging communications with the second portion of the second plurality of mobile devices using white space in a second licensed spectrum, the second licensed spectrum being different than the licensed spectrum.

9. A base station for a communication system providing a first service, the base station comprising:

at least one transceiver adapted for exchanging communications with a plurality of mobile devices using a first bandwidth in a first licensed spectrum and using a second bandwidth in a second licensed spectrum, the first bandwidth in the first licensed spectrum being allocated for use by the communication system in providing the first service and the second bandwidth in a second licensed spectrum allocated for use in providing a second service, different than the first service;

a control module, the control module adapted to;

determine cumulative bandwidth consumption in the first licensed spectrum by mobile devices having a connection to the base station;

determine whether the cumulative bandwidth consumption is above a threshold; and

when the cumulative bandwidth consumption is above the threshold, configure the at least one transmitter for communication with a first set of mobile devices using the first bandwidth and a second set of mobile devices using the second bandwidth.

10. The base station of claim 9, wherein:

the control module further comprises a range detection component, the range detection component being adapted to determine a range between the base station and a mobile device in the vicinity of the base station;

the control module comprises a band allocation component, the band allocation component assigning mobile devices of the plurality of devices to the second set based on a range determined by the range detection component for each device assigned to the second set being below a second threshold.

11. The base station of claim 9, wherein:

the control module comprises a band allocation component, the band allocation component assigning mobile devices of the plurality of devices to the second set based on a requested bandwidth received from each device assigned to the second set being below a threshold.

12. The base station of claim 9, wherein:

the control module further comprises a range detection component, the range detection component being adapted to determine a range between the base station and a mobile device in the vicinity of the base station;

the control module comprises;

an admission control component, the admission control component being adapted to exchange communications with mobile devices seeking a connection to the base station, the communications comprising requests to accept a lower bandwidth sent from the admission control component and a responses from mobile devices indicating acceptance of the lower bandwidth; and

a band allocation component, the band allocation component being adapted to assign mobile devices of the plurality of devices to the second set based on responses from the mobile devices indicating acceptance of the lower bandwidth.

13. The base station of claim 9, wherein:

at least one transceiver is adapted for exchanging communications with mobile devices assigned to the first group at a data rate in excess of 2 Mps and for exchanging communications with mobile devices assigned to the second group at a data rate less than 1 Mps.

14. The base station of claim 9, wherein:

the base station is a first base station; and

the control module is further adapted to communicate information to a second base station of the communication system, the information comprising handover information relating to a mobile device being handed over to the second base station and band allocation information, the band allocation information indicating whether the mobile device being handed over is assigned to the second subset.

15. The base station of claim 9, wherein:

the base station is a first base station; and

the control module is further adapted to exchange information to a second base station of the communication system, the exchanged information identifying cumulative bandwidth consumption for the communication system in the vicinity of the first and second base stations.

16. A method of operating a cellular communication service of the type that comprises a base station adapted for exchanging communications with multiple mobile devices within a region, the method comprising:

during a first interval, exchanging communications with each of a first plurality of mobile devices within the region, the communications with the plurality of devices collectively using a first amount of bandwidth within a first licensed spectrum;

at a second time determining that the region contains a second plurality of mobile devices such that exchanging communications with the second plurality of mobile devices using the first licensed spectrum would consume a second amount of bandwidth;

determining that the second amount of bandwidth exceeds a threshold; and

when it is determined that the second amount of bandwidth exceeds the threshold;

identifying a first portion of the plurality of mobile devices and a second portion of the plurality of mobile devices based on inputs from users of the plurality of mobile devices; and

exchanging communications with the first portion of the second plurality of mobile devices using the first licensed spectrum and exchanging communications with a second portion of the second plurality of mobile devices using white space in a second licensed spectrum, the second licensed spectrum being licensed to provide digital television service.

17. The method of claim 16, wherein identifying a first portion of the plurality of mobile devices and a second portion of the plurality of devices based on inputs from users comprises:

selecting a mobile device of the second plurality of mobile devices based on a range from the base station; and

sending a request to the selected mobile device to accept a lower bandwidth connection; and

identifying the selected mobile device as within the second portion when a response to the request indicates acceptance of a lower bandwidth.

18. The method of claim 16, wherein identifying a first portion of the plurality of mobile devices and a second portion of the plurality of devices based on inputs from users comprises:

selecting a mobile device of the second plurality of mobile devices based on a range from the base station;

accessing scriber information for the selected mobile device; and

identifying the selected mobile device as within the second portion when the subscriber information indicates acceptance of a lower bandwidth.

19. The method of claim 16, further comprising:

selecting the second portion of the second plurality of mobile devices based at least in part on a distance between the base station and each device of the second plurality of devices selected as being within the second portion.

20. The method of claim 19, wherein selecting the second portion comprises:

offering to devices within a predetermined range of the base station a lower bandwidth connection;

selecting as the second portion those devices responding to the offer with an acceptance of the offer.