US5245629A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for compensating for capacity overload in a spread spectrum communication system
Assignee: Motorola Solutions Inc
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Filing: 1991-10-28
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Granted: 1993-09-14
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Expires: 2011-10-28
Abstract
Abstract A method for compensating for capacity overload in a communication system by first determining the received signal power level at a base site is described. The power level is compared with a threshold power level. If the received power level is greater than the threshold, the signal-to-noise ratio for the system is reduced. With the acceptable signal-to-noise ratio reduced, the subscriber power will be reduced. The received signal power level at the base site will then return to the threshold level. Alternatively, a signal-to-noise ratio of a pilot signal can be determined at the base. The signal-to-noise ratio is compared to a threshold signal-to-noise ratio. If the signal-to-noise ratio of the pilot is less than the threshold, the threshold level is reduced. With the acceptable signal-to-noise ratio reduced, the subscribers are directed to reduce their power.
Inventors
- 👤 Scott M. Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:03
CPC Classifications
H; H04; H04W; H04W52/00; H04W52/04; H04W52/30; H04W52/34; H04W52/343; H04W52/18; H04W52/24
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
107 words
A method of compensating for capacity overload in a spread spectrum communication system comprising the steps of: determining a receiver site power level at a first base site of said spread spectrum communication system; comparing said receiver site power level to a threshold power level; adjusting a signal-to-noise ratio for said spread spectrum communication system at said first base site if said receiver site power level is greater than said threshold power level; transmitting a power control signal from said first base site to a subscriber of said spread spectrum communication system; and adjusting a transmit power of said subscriber in response to said power control signal.
Claim 2
Independent Claim
107 words
A method of compensating for capacity overload in a spread spectrum communication system comprising the steps of: determining a receiver site power level at a first base site of said spread spectrum communication system; comparing said receiver site power level to a threshold power level; adjusting a signal-to-noise ratio for said spread spectrum communication system at said first base site if said receiver site power level is greater than said threshold power level; transmitting a power control signal from said first base site to a subscriber of said spread spectrum communication system; and adjusting a transmit power of said subscriber in response to said power control signal.
Claim 3
Dependent Claim
26 words
The method of claim 1 whereby adjusting said transmit power of said subscriber reduces said receiver site power level to a reduced receiver site power level.
Claim 4
Dependent Claim
23 words
The method of claim 2 wherein said spread spectrum communication system has a maximum threshold power level and a minimum threshold power level.
Claim 5
Dependent Claim
19 words
The method of claim 3 wherein said receiver site power level is compared to said maximum threshold power level.
Claim 6
Dependent Claim
18 words
The method of claim 4 wherein said reduced receiver site power level is said minimum threshold power level.
Claim 7
Dependent Claim
21 words
The method of claim 5 wherein a request to add a new user to said spread spectrum communication system is refused.
Claim 8
Dependent Claim
38 words
The method of claim 5 wherein a request to add a new user to said first base site of said spread spectrum communication system is handed off to a second base site of said spread spectrum communication system.
Claim 9
Dependent Claim
28 words
The method of claim 5 wherein a current user of said first base site is handed off to a second base site of said spread spectrum communication system.
Claim 10
Independent Claim
104 words
A method of compensating for capacity overload in a spread spectrum communication system comprising the steps of: determining a signal-to-noise ratio of a pilot signal of a pilot of said spread spectrum communication system; comparing said signal-to-noise ratio to a threshold signal-to-noise ratio; adjusting said threshold signal-to-noise ratio for said spread spectrum communication system at a first base site if said signal-to-noise ratio is less than said threshold signal-to-noise ratio; transmitting a power control signal from said first base site to a subscriber of said spread spectrum communication system; and adjusting a transmit power of said subscriber in response to said power control signal.
Claim 11
Independent Claim
104 words
A method of compensating for capacity overload in a spread spectrum communication system comprising the steps of: determining a signal-to-noise ratio of a pilot signal of a pilot of said spread spectrum communication system; comparing said signal-to-noise ratio to a threshold signal-to-noise ratio; adjusting said threshold signal-to-noise ratio for said spread spectrum communication system at a first base site if said signal-to-noise ratio is less than said threshold signal-to-noise ratio; transmitting a power control signal from said first base site to a subscriber of said spread spectrum communication system; and adjusting a transmit power of said subscriber in response to said power control signal.
Claim 12
Dependent Claim
23 words
The method of claim 9 wherein said spread spectrum communication system has a maximum threshold signal-to-noise ratio and a minimum threshold signal-to-noise ratio.
Claim 13
Dependent Claim
18 words
The method of claim 10 wherein said pilot signal-to-noise ratio is compared to said maximum threshold signal-to-noise ratio.
Claim 14
Dependent Claim
16 words
The method of claim 11 wherein said pilot signal-to-noise ratio is said minimum threshold signal-to-noise ratio.
Claim 15
Dependent Claim
21 words
The method of claim 12 wherein a request to add a new user to said spread spectrum communication system is refused.
Claim 16
Dependent Claim
38 words
The method of claim 12 wherein a request to add a new user to said first base site of said spread spectrum communication system is handed off to a second base site of said spread spectrum communication system.
Claim 17
Dependent Claim
28 words
The method of claim 12 wherein a current user of said first base site is handed off to a second base site of said spread spectrum communication system.
Claim 18
Dependent Claim
126 words
A spread spectrum communication system comprising: determining means for determining a receiver site power level at a base site of said spread spectrum communication system; comparing means coupled to said determining means for comparing said receiver site power level to a threshold power level; adjusting means coupled to said comparing means for adjusting a signal-to-noise ratio for said spread spectrum communication system at said base site if said receiver site power level is greater than said threshold power level; transmitting means coupled to said adjusting means for transmitting a power control signal from said base site to a subscriber of said spread spectrum communication system; and adjusting means at said subscriber for adjusting a transmit power of said subscriber in response to said power control signal.
Claim 19
Dependent Claim
126 words
A spread spectrum communication system comprising: determining means for determining a receiver site power level at a base site of said spread spectrum communication system; comparing means coupled to said determining means for comparing said receiver site power level to a threshold power level; adjusting means coupled to said comparing means for adjusting a signal-to-noise ratio for said spread spectrum communication system at said base site if said receiver site power level is greater than said threshold power level; transmitting means coupled to said adjusting means for transmitting a power control signal from said base site to a subscriber of said spread spectrum communication system; and adjusting means at said subscriber for adjusting a transmit power of said subscriber in response to said power control signal.
Claim 20
Dependent Claim
124 words
A spread spectrum communication system comprising: determining means for determining a signal-to-noise ratio of a pilot signal of a pilot of said spread spectrum communication system; comparing means coupled to said determining means to compare said signal-to-noise ratio to a threshold signal-to-noise ratio; adjusting means coupled to said comparing means for adjusting said threshold signal-to-noise ratio for said spread spectrum communication system at said base site if said signal-to-noise ratio is less than said threshold signal-to-noise ratio; transmitting means coupled to said adjusting means for transmitting a power control signal from said base site to a subscriber of said spread spectrum communication system; and adjusting means at said subscriber for adjusting a transmit power of said subscriber in response to said power control signal.
Claim 21
Dependent Claim
124 words
A spread spectrum communication system comprising: determining means for determining a signal-to-noise ratio of a pilot signal of a pilot of said spread spectrum communication system; comparing means coupled to said determining means to compare said signal-to-noise ratio to a threshold signal-to-noise ratio; adjusting means coupled to said comparing means for adjusting said threshold signal-to-noise ratio for said spread spectrum communication system at said base site if said signal-to-noise ratio is less than said threshold signal-to-noise ratio; transmitting means coupled to said adjusting means for transmitting a power control signal from said base site to a subscriber of said spread spectrum communication system; and adjusting means at said subscriber for adjusting a transmit power of said subscriber in response to said power control signal.
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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) | 1996-09-13 | 1997-03-15 | 1997-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-09-13 | 2001-03-15 | 2001-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-09-13 | 2005-03-15 | 2005-09-14 | $7700.00 | Window Closed / Lapsed |