US8761080B2
Active / In Force
US
⏱️ 3.1 years remaining
Multiple other sector information combining for power control in a wireless communication system
Assignee: Qualcomm Inc
•
Filing: 2009-11-19
•
Granted: 2014-06-24
•
Expires: 2029-11-19
Abstract
Abstract Techniques for adjusting transmit power to mitigate both intra-sector interference to a serving base station and inter-sector interference to neighbor base stations are described. This may be done by combining interference information from multiple base stations.
Inventors
- 👤 Murat Mese
- 👤 Arak Sutivong
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:04
CPC Classifications
H; H04; H04W; H04W52/00; H04W52/04; H04W52/30; H04W52/36; H04W52/362; H04L; H04L1/00; H04L1/20; H04L1/201; H04W52/18; H04W52/24; H04W52/243; H04L1/004; H04L1/0045; H04W52/38; H04W52/40
Claims Analysis
Total Claims: 41
Claim 1
Independent Claim
110 words
A method of performing power control at a wireless terminal in a wireless communication system, the method comprising: obtaining, for at least two sectors, an indication of interference observed by the sector, each sector being a neighbor sector not designated to receive a data transmission sent by the wireless terminal or a serving sector designated to receive the data transmission sent by the wireless terminal; combining each indication of interference received from the at least two sectors according to a weighting scheme based on a channel gain relationship for each sector with respect to a serving sector; and adjusting transmit power for the data transmission based on the combined indications.
Claim 2
Independent Claim
110 words
A method of performing power control at a wireless terminal in a wireless communication system, the method comprising: obtaining, for at least two sectors, an indication of interference observed by the sector, each sector being a neighbor sector not designated to receive a data transmission sent by the wireless terminal or a serving sector designated to receive the data transmission sent by the wireless terminal; combining each indication of interference received from the at least two sectors according to a weighting scheme based on a channel gain relationship for each sector with respect to a serving sector; and adjusting transmit power for the data transmission based on the combined indications.
Claim 3
Dependent Claim
30 words
The method of claim 1 , wherein the indication comprises a first bit that indicates whether the interference observed by the sector is above or below a first interference threshold.
Claim 4
Dependent Claim
36 words
The method of claim 2 , wherein the indication further comprises a second bit that indicates whether the interference observed by the sector exceeds a second interference threshold that is higher than the first interference threshold.
Claim 5
Dependent Claim
16 words
The method of claim 1 , wherein the serving sector comprises a reverse link serving sector.
Claim 6
Dependent Claim
29 words
The method of claim 1 , further comprising determining a threshold value for each indication and wherein weighting comprises weighting each threshold value according to the channel gain relationship.
Claim 7
Dependent Claim
31 words
The method of claim 1 , wherein channel gains for each of the at least two sectors and the serving sectors are estimated based on pilots received from the sectors, respectively.
Claim 8
Dependent Claim
21 words
The method of claim 1 , wherein adjusting the transmit power comprises adjusting based on the combined indication and a probability.
Claim 9
Dependent Claim
33 words
The method of claim 7 , further comprising determining the probability for adjusting the transmit power upward or downward based on the channel gain relationships for each of the at least two sectors.
Claim 10
Dependent Claim
25 words
The method of claim 8 , wherein the probability is determined further based on a current level of the transmit power for the data transmission.
Claim 11
Dependent Claim
23 words
The method of claim 8 , wherein the transmit power is adjusted in a fixed-size step and in accordance with the determined probability.
Claim 12
Dependent Claim
38 words
The method of claim 1 , further comprising determining a step size for adjusting the transmit power based on the estimated channel gain relationships and wherein adjusting comprises adjusting based on the combined indications and the step size.
Claim 13
Dependent Claim
26 words
The method of claim 11 , wherein the step size is determined further based on a current level of the transmit power for the data transmission.
Claim 14
Independent Claim
131 words
An apparatus operable to perform power control at a wireless terminal in a wireless communication system, comprising: a processor configured to obtain, for at least two sectors, an indication of interference observed by the sector, each sector being a neighbor sector not designated to receive a data transmission sent by the wireless terminal or a serving sector designated to receive the data transmission sent by the wireless terminal, to combine each indication of interference received from the at least two sectors according to a weighting scheme based on a channel gain relationship for each sector with respect to a serving sector, and to adjust a transmit power for data transmission based on the combined indication of interference received from the at least two sectors; and a memory coupled with the processor.
Claim 15
Independent Claim
131 words
An apparatus operable to perform power control at a wireless terminal in a wireless communication system, comprising: a processor configured to obtain, for at least two sectors, an indication of interference observed by the sector, each sector being a neighbor sector not designated to receive a data transmission sent by the wireless terminal or a serving sector designated to receive the data transmission sent by the wireless terminal, to combine each indication of interference received from the at least two sectors according to a weighting scheme based on a channel gain relationship for each sector with respect to a serving sector, and to adjust a transmit power for data transmission based on the combined indication of interference received from the at least two sectors; and a memory coupled with the processor.
Claim 16
Dependent Claim
30 words
The apparatus of claim 13 , wherein the indication comprises a first bit that indicates whether the interference observed by the sector is above or below a first interference threshold.
Claim 17
Dependent Claim
36 words
The apparatus of claim 14 , wherein the indication further comprises a second bit that indicates whether the interference observed by the sector exceeds a second interference threshold that is higher than the first interference threshold.
Claim 18
Dependent Claim
16 words
The apparatus of claim 13 , wherein the serving sector comprise a reverse link serving sector.
Claim 19
Dependent Claim
30 words
The apparatus of claim 13 , wherein the processor is configured to determine a threshold value for each indication and weight each threshold value according to the channel gain relationship.
Claim 20
Dependent Claim
24 words
The apparatus of claim 13 , wherein the processor is configured to adjust the transmit power based on the combined indication and a probability.
Claim 21
Dependent Claim
37 words
The apparatus of claim 18 , wherein the processor is configured to determine the probability, for adjusting the transmit power upward or downward, based on the channel gain relationships for each of the at least two sectors.
Claim 22
Dependent Claim
28 words
The apparatus of claim 19 , wherein the processor is configured to determine the probability based on a current level of the transmit power for the data transmission.
Claim 23
Dependent Claim
27 words
The apparatus of claim 19 , wherein the processor is configured to adjust the transmit power in a fixed-size step and in accordance with the determined probability.
Claim 24
Dependent Claim
28 words
The apparatus of claim 13 , wherein the processor is configured to determine a step size and to adjust based on the combined indications and the step size.
Claim 25
Dependent Claim
29 words
The apparatus of claim 22 , wherein the processor is configured to determine the step size based on a current level of the transmit power for the data transmission.
Claim 26
Independent Claim
115 words
An apparatus operable to perform power control at a wireless terminal in a wireless communication system, comprising: means for obtaining, for at least two sectors, an indication of interference observed by the sector, each sector being a neighbor sector not designated to receive a data transmission sent by the wireless terminal or a serving sector designated to receive the data transmission sent by the wireless terminal; means for combining each indication of interference received from the at least two sectors according to a weighting scheme based on a channel gain relationship for each sector with respect to a serving sector; and means for adjusting transmit power for the data transmission based on the combined indications.
Claim 27
Independent Claim
115 words
An apparatus operable to perform power control at a wireless terminal in a wireless communication system, comprising: means for obtaining, for at least two sectors, an indication of interference observed by the sector, each sector being a neighbor sector not designated to receive a data transmission sent by the wireless terminal or a serving sector designated to receive the data transmission sent by the wireless terminal; means for combining each indication of interference received from the at least two sectors according to a weighting scheme based on a channel gain relationship for each sector with respect to a serving sector; and means for adjusting transmit power for the data transmission based on the combined indications.
Claim 28
Dependent Claim
30 words
The apparatus of claim 24 , wherein the indication comprises a first bit that indicates whether the interference observed by the sector is above or below a first interference threshold.
Claim 29
Dependent Claim
36 words
The apparatus of claim 25 , wherein the indication further comprises a second bit that indicates whether the interference observed by the sector exceeds a second interference threshold that is higher than the first interference threshold.
Claim 30
Dependent Claim
36 words
The apparatus of claim 24 , further comprises means for determining a threshold value for each indication and wherein the means for weighting comprises means for weighting each threshold value according to the channel gain relationship.
Claim 31
Dependent Claim
17 words
The apparatus of claim 24 , further comprising means for estimating channel gains based on pilots received.
Claim 32
Dependent Claim
26 words
The apparatus of claim 24 , wherein the means for adjusting the transmit power comprises means for adjusting based on the combined indication and a probability.
Claim 33
Dependent Claim
44 words
The apparatus of claim 24 , wherein the means for adjusting the transmit power comprises means for determining a step size for adjusting the transmit power based on the estimated channel gain relationships and adjusting based on the combined indications and the step size.
Claim 34
Dependent Claim
133 words
A non-transitory computer memory unit comprising code, which, when executed by a processor, direct the processor to perform power control at a wireless terminal in a wireless communication system, the computer readable storage medium comprising: code for obtaining, for at least two sectors, an indication of interference observed by the sector, each sector being a neighbor sector not designated to receive a data transmission sent by the wireless terminal or a serving sector designated to receive the data transmission sent by the wireless terminal; code for combining each indication of interference received from the at least two sectors according to a weighting scheme based on a channel gain relationship for each sector with respect to a serving sector; and code for adjusting transmit power for the data transmission based on the combined indications.
Claim 35
Dependent Claim
133 words
A non-transitory computer memory unit comprising code, which, when executed by a processor, direct the processor to perform power control at a wireless terminal in a wireless communication system, the computer readable storage medium comprising: code for obtaining, for at least two sectors, an indication of interference observed by the sector, each sector being a neighbor sector not designated to receive a data transmission sent by the wireless terminal or a serving sector designated to receive the data transmission sent by the wireless terminal; code for combining each indication of interference received from the at least two sectors according to a weighting scheme based on a channel gain relationship for each sector with respect to a serving sector; and code for adjusting transmit power for the data transmission based on the combined indications.
Claim 36
Dependent Claim
33 words
The computer readable storage medium of claim 31 , wherein the indication comprises a first bit that indicates whether the interference observed by the sector is above or below a first interference threshold.
Claim 37
Dependent Claim
39 words
The computer readable storage medium of claim 32 , wherein the indication further comprises a second bit that indicates whether the interference observed by the sector exceeds a second interference threshold that is higher than the first interference threshold.
Claim 38
Dependent Claim
39 words
The computer readable storage medium of claim 31 , further comprising code for determining a threshold value for each indication and wherein the code for weighting comprises code for weighting each threshold value according to the channel gain relationship.
Claim 39
Dependent Claim
20 words
The computer readable storage medium of claim 31 , further comprising code for estimating channel gains based on pilots received.
Claim 40
Dependent Claim
29 words
The computer readable storage medium of claim 31 , wherein the code for adjusting the transmit power comprises code for adjusting based on the combined indication and a probability.
Claim 41
Dependent Claim
47 words
The computer readable storage medium of claim 31 , wherein the code for adjusting the transmit power comprises code for determining a step size for adjusting the transmit power based on the estimated channel gain relationships and adjusting based on the combined indications and the step size.
References Cited (Backward Citations)
US5021777A
Cited
US5196728A
Cited
RU2073913C1
Cited
EP0475698A2
Cited
US5276911A
Cited
US5289527A
Cited
US6157621A
Cited
US5640414A
Cited
US5267261A
Cited
WO1993018601A1
Cited
EP1583309B1
Cited
US5363426A
Cited
US5678192A
Cited
US5406613A
Cited
US6167248A
Cited
US5818842A
Cited
US5878033A
Cited
EP0687078A2
Cited
US5490139A
Cited
US6175557B1
Cited
US5913168A
Cited
US5825752A
Cited
US5802467A
Cited
US5818825A
Cited
WO1997030531A1
Cited
US6128290A
Cited
WO1997033399A1
Cited
JP2000506343A
Cited
US5815507A
Cited
US20020142776A1
Cited
US5946292A
Cited
US6047189A
Cited
US6006073A
Cited
US6088345A
Cited
US20010029181A1
Cited
EP1487230B1
Cited
US6272335B1
Cited
US6249681B1
Cited
US6175550B1
Cited
EP0869647A2
Cited
US6532227B1
Cited
WO1998048581A1
Cited
US6212175B1
Cited
US6169768B1
Cited
US6493338B1
Cited
US6684080B1
Cited
EP1471760A3
Cited
WO1998054919A2
Cited
US6421540B1
Cited
US20020123358A1
Cited
JP2004328772A
Cited
US6229800B1
Cited
US6038220A
Cited
US6012160A
Cited
US6278882B1
Cited
US20060280160A1
Cited
US6118767A
Cited
US6154659A
Cited
US6563807B1
Cited
US6181738B1
Cited
EP1004217B1
Cited
US6144841A
Cited
US6115667A
Cited
US6144861A
Cited
US6359900B1
Cited
US6369447B2
Cited
EP0955736A3
Cited
US6266529B1
Cited
US6119005A
Cited
US6216004B1
Cited
US20010034233A1
Cited
WO2000007260A2
Cited
US6643520B1
Cited
WO2000010353A1
Cited
US6577608B1
Cited
US6480504B1
Cited
US6633554B1
Cited
US6389034B1
Cited
US6597705B1
Cited
US6366779B1
Cited
US6580726B1
Cited
US6252865B1
Cited
US6788937B1
Cited
US6795425B1
Cited
JP2000232688A
Cited
US6138034A
Cited
US6535736B1
Cited
US6714511B1
Cited
RU2198465C2
Cited
US6483826B1
Cited
US6944146B1
Cited
CN1350730A
Cited
WO2000055976A2
Cited
JP2002539707A
Cited
US6628956B2
Cited
US6687285B1
Cited
JP2002540692A
Cited
CN1346580A
Cited
US6300864B1
Cited
EP1052866B1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2017-06-23 | 2017-12-23 | 2018-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2021-06-23 | 2021-12-23 | 2022-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2025-06-23 | 2025-12-23 | 2026-06-24 | $7700.00 | Window Closed / Lapsed |