APPARATUS AND METHOD FOR PROVIDING UPLINK INTERFERENCE COORDINATION IN A RADIO COMMUNICATION SYSTEM

• US 20090082053A1
• Filed: 09/21/2007
• Published: 03/26/2009
• Est. Priority Date: 09/21/2007
• Status: Active Grant

• Current Assignee: Malikie Innovations Limited (Key Patent Innovations Limited)
• Original Assignee: Blackberry Limited
• Inventors: CAI, ZHIJUN, YOUNG, GORDON, WEI, XUSHENG
• Granted Patent: US 8,200,263 B2
• Time in Patent Office: Days
• US Class Current: 455/522
• CPC Class Codes: H04L 1/0026 Transmission of channel quality indication
• CPC Class Codes: H04L 1/0027 Scheduling of signalling, e.g. occurrence thereof
• CPC Class Codes: H04W 72/541 using the level of interference

Abstract

An apparatus and a method provide for uplink interference coordination in a radio communication system, such as a cellular communication system. Measurements are made at mobile stations associated with uplink-channel interference conditions. Reports are made to the network when a mobile station experiences interference conditions beyond a measurement threshold. If greater than a group-threshold number of mobile stations experience high levels of uplink-channel interference, communication resources are reallocated in compensation for the high interference conditions.

Claims

1. An apparatus for facilitating radio-communication-system uplink interference coordination, said apparatus comprising:

a detector configured to detect radio-communication-system interference condition information; and

a selector configured to select update of at least a first parameter responsive to the radio-communication-system interference information detected to be beyond a first threshold.

2. The apparatus of claim 1 wherein the radio-communication-system information comprises SINR, Signal To Noise Ratio, information.

3. The apparatus of claim 1 wherein the radio-communication-system information comprises signal path loss information.

4. The apparatus of claim 1 wherein the radio-communication-system interference condition information comprises aggregate mobile-station-related interference condition information.

5. The apparatus of claim 4 wherein the aggregate mobile-station-related interference condition information comprises an aggregate mobile-station number representative of multiple interference conditions within an area.

6. The apparatus of claim 5 wherein each interference condition of the multiple interference conditions comprises an individual mobile-station interference condition.

7. The apparatus of claim 5 wherein the first threshold comprises a threshold number and wherein said selector is configured to select update when the aggregate mobile-station number exceeds the threshold number.

8. The apparatus of claim 1 wherein the first parameter comprises a frequency-related parameter.

9. The apparatus of claim 8 wherein the frequency parameter comprises a mobile-station assignation to one of a first frequency group and a second frequency group.

10. The apparatus of claim 9 wherein the first frequency group comprises a common frequency group.

11. The apparatus of claim 9 wherein the second frequency group comprises a non-common frequency group.

12. The apparatus of claim 1 wherein said selector is further configured to select update responsive to a time threshold.

13. A method for facilitating radio-communication-system uplink interference coordination, said method comprising:

detecting radio-communication-system interference condition information; and

selecting update of at least a first parameter responsive to the radio-communication-system information detected to be beyond a first threshold.

14. The method of claim 13 wherein said detecting comprises detecting an aggregated mobile-station-reported interference condition number.

15. The method of claim 14 wherein said selecting the update comprises selecting the update when the aggregated mobile-station-reported interference condition exceeds the threshold.

16. The method of claim 13 wherein the first parameter comprises a frequency-related parameter.

17. The method of claim 13 further comprising updating the first parameter.

18. The method of claim 17 further comprising performing interference coordination.

19. An apparatus for facilitating radio-communication-system uplink interference coordination of communications by a mobile station, said apparatus comprising:

a reporter configured to provide a network report of an interference condition pertaining to the mobile station; and

a detector configured to detect a network-generated update of at least a first parameter, the network-generated update generated, in part, based upon the network report.

20. A method for facilitating radio-communication-system uplink interference coordination of communications by a mobile station, said method comprising:

providing a network report of an interference condition pertaining to the mobile station; and

detecting a network-generated update of at least a first parameter, the network-generated update generated, in part, based upon the network report.

21. An apparatus for facilitating radio-communication-system uplink interference coordination, said apparatus comprising:

a time calculator configured to calculate a time-related value; and

a selector configured to select update of at least a first parameter responsive to when the time-related value is of a selected characteristic.