Patent US8761080B2 successfully refreshed from Google Patents.
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 18:16
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.
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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 |