Boosting a signal-to-interference ratio of a mobile station
View Patent ↗In a cell of a cellular wireless communication system, the SIR of at least one user in a sector of the cell is altered by temporarily reducing transmissions on a forward link in at least one other sector of the cell or a sector in another cell in accordance with a pattern.
1. A method comprising;
measuring a signal-to interference ratio for a mobile station in a first sector of a wireless communication system; and
sending, based on measuring, a request for adjustment in transmission capacity on a forward link in a second sector of the wireless communication system, the adjustment in the transmission capacity for causing an adjustment in the signal-to interference ratio for the mobile station.
2. The method of claim 1 , further comprising:
generating the request in accordance with a pattern that is organized in a sequence of time slots, a time slot specifying a time in which the second sector is configured to receive and/or to send transmissions;
wherein the pattern defines sectors with transmissions turned on or off in each of the time slots.
3. The method of claim 2 , wherein the pattern comprises a predetermined fixed pattern that is repeated as time passes.
4. The method of claim 1 , further comprising:
determining a state of transmissions in the second sector.
5. The method of claim 4 , wherein the state of transmissions comprises a scheduling status of transmissions to one or more third sectors.
6. The method of claim 5 , wherein the state of transmissions comprises information about transmission rates of the second sector.
7. The method of claim 4 , wherein the state of transmissions comprises next time slot usage information specifying a time in which the second sector is configured to receive and/or to send transmissions.
8. The method of claim 4 , wherein the mobile station comprises a first mobile station, and wherein the state of transmissions comprises information about a forward link signal-to-interference ratio measured for a second mobile station in the second sector.
9. The method of claim 4 , wherein the mobile station comprises a first mobile station, and wherein the state of transmissions comprises information about a location of a second mobile station scheduled to receive a data packet in the second sector.
10. The method of claim 4 , wherein the mobile station comprises a first mobile station, and wherein the state of transmissions comprises a fairness setting for a second mobile station scheduled to receive a data packet in the second sector.
11. The method of claim 4 , wherein the mobile station comprises a first mobile station, and wherein the state of transmissions comprises information about one or more of (i) an application type of a second mobile station scheduled to receive a data packet in the second sector, and (ii) a quality of service level of the second mobile station scheduled to receive the data packet in the second sector.
12. The method of claim 1 , wherein the request for adjustment comprises a request for reduction.
13. The method of claim 12 , wherein the request is in accordance with a pattern of turning off transmissions in other sectors to promote evenly distributed communication rates among mobile stations.
14. The method of claim 1 , further comprising:
arranging a frequency reuse factor of one or higher in the wireless communication system.
15. The method of claim 1 in which the wireless communication system comprises an 1xEV-DO communication system.
16. An apparatus comprising;
a machine; and
a medium configured to store instructions that are executable by the machine to perform operations comprising:
measuring a signal-to interference ratio for a mobile station in a first sector of a wireless communication system; and
sending, based on measuring, a request for adjustment in transmission capacity on a forward link in a second sector of the wireless communication system, the adjustment in the transmission capacity for causing an adjustment in the signal-to interference ratio for the mobile station.
17. The apparatus of claim 16 , wherein the operations further comprise:
controlling wireless transmission facilities for the first and the second sectors.
18. A medium configured to store instructions that are executable by a machine to perform operations comprising:
measuring a signal-to interference ratio for a mobile station in a first sector of a wireless communication system; and
sending, based on measuring, a request for adjustment in transmission capacity on a forward link in a second sector of the wireless communication system, the adjustment in the transmission capacity for causing an adjustment in the signal-to interference ratio for the mobile station.
19. The medium of claim 18 , wherein the operations further comprise:
generating the request in accordance with a pattern that is organized in a sequence of time slots, a time slot specifying a time in which the second sector is configured to receive and/or to send transmissions;
wherein the pattern defines sectors with transmissions turned on or off in each of the time slots.
20. The medium of claim 18 , wherein the operations further comprise:
determining a state of transmissions in the second sector.
21. The medium of claim 20 , wherein the state of transmissions comprises a scheduling status of transmissions to one or more third sectors.