US6501736B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for increasing the call capacity of a wireless communication system
Assignee: RPX Corp
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Filing: 1999-03-19
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Granted: 2002-12-31
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Expires: 2019-03-19
Abstract
Abstract The system for increasing the call capacity of a wireless communications system degrades voice quality of the communications connections within a predetermined limit in order to increase the efficiency of the available RF spectrum as measured by the call carrying capacity of this allocated RF spectrum. This is accomplished by adjusting the transmission rate of the speech coder at the mobile subscriber unit and/or the speech coder that may be located at the mobile switching center so that the call carrying capacity of the wireless communications system is therefore increased. Additionally, the situation of call blocking is monitored to determine if frame error rate targets should be adjusted to further increase the call capacity. At times when the wireless system is not experiencing peak usage, the voice quality is restored to normal levels. The term "mobile subscriber unit" does not imply that the mobile unit is restricted to a moving vehicle. The present state of the art includes the use of mobile subscriber units in fixed wireless applications as an alternative to traditional wire telephony services.
Inventors
- 👤 Kenneth Frank Smolik
- 👤 Shawn S. Yu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:29
CPC Classifications
H; H04; H04W; H04W52/00; H04W52/04; H04W52/30; H04W52/34; H04W28/00; H04W28/16; H04W28/18; H04W24/00; H04W28/22; H04W48/00; H04W52/18; H04W52/26
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
284 words
In a wireless communications system that provides wireless communication services to a plurality of wireless subscriber units extant in said wireless communication system, by utilizing a plurality of variable rate speech coders that have at least one adjustable operating parameter associated with a forward radio channel and having at least one adjustable operating parameter associated with a reverse radio channel, apparatus for minimizing a total power on at least one of said forward radio channel and said reverse radio channel, comprising: means for determining an occurrence of call blockage, comprising: means for measuring a total power summed over all of said wireless subscriber units being served on said forward radio channel, means for comparing said total power on said forward radio channel to at least one threshold associated with said forward radio channel in order to determine if said total power on said forward radio channel is greater than at least one of said at least one threshold associated with said forward radio channel, means for measuring a total power summed over all wireless subscriber units being served on said reverse radio channel, means for comparing said total power on said reverse radio channel to at least one threshold associated with said reverse radio channel in order to determine if said total power on said reverse radio channel is greater than at least one of said at least one threshold associated with said reverse radio channel; and means, responsive to said occurrence of call blockage, for adjusting at least one of said at least one adjustable operating parameter associated with at least one of said forward channel and said reverse channel, whereby a resulting call carrying capacity of said wireless communications system is increased.
Claim 2
Dependent Claim
284 words
In a wireless communications system that provides wireless communication services to a plurality of wireless subscriber units extant in said wireless communication system, by utilizing a plurality of variable rate speech coders that have at least one adjustable operating parameter associated with a forward radio channel and having at least one adjustable operating parameter associated with a reverse radio channel, apparatus for minimizing a total power on at least one of said forward radio channel and said reverse radio channel, comprising: means for determining an occurrence of call blockage, comprising: means for measuring a total power summed over all of said wireless subscriber units being served on said forward radio channel, means for comparing said total power on said forward radio channel to at least one threshold associated with said forward radio channel in order to determine if said total power on said forward radio channel is greater than at least one of said at least one threshold associated with said forward radio channel, means for measuring a total power summed over all wireless subscriber units being served on said reverse radio channel, means for comparing said total power on said reverse radio channel to at least one threshold associated with said reverse radio channel in order to determine if said total power on said reverse radio channel is greater than at least one of said at least one threshold associated with said reverse radio channel; and means, responsive to said occurrence of call blockage, for adjusting at least one of said at least one adjustable operating parameter associated with at least one of said forward channel and said reverse channel, whereby a resulting call carrying capacity of said wireless communications system is increased.
Claim 3
Dependent Claim
60 words
The wireless communications system in claim 1 further comprises: means for identifying wireless subscriber units that are assigned a level of quality of service that Is less than a predetermined threshold; and wherein said means for adjusting is operable to adjust said at least one of said at least one adjustable operating parameter only for said identified wireless subscriber units.
Claim 4
Dependent Claim
31 words
The wireless communications system in claim 1 further comprising: means, responsive to said occurrence of call blockage, for activating said means for adjusting for a portion of said wireless communications system.
Claim 5
Dependent Claim
28 words
The wireless communications system in claim 1 further comprising: means, responsive to said occurrence of call blockage, for activating said means for adjusting according to time and date.
Claim 6
Dependent Claim
72 words
The wireless communications system in claim 1 , wherein said means for adjusting said at least one of said at least one adjustable operating parameter associated with said forward radio channel comprises: means for reducing a speech coder transmission rate according to said threshold associated with said forward radio channel that is exceeded by said total power summed over all of said wireless subscriber units being served on said forward radio channel.
Claim 7
Dependent Claim
71 words
The wireless communications system in claim 5 , herein said means for adjusting at least one of said at least one adjustable operating parameter associated with said reverse radio channel comprises: means for reducing a speech coder transmission rate according to said threshold associated with said reverse radio channel that is exceeded by said total power summed over all of said wireless subscriber units being served on said reverse radio channel.
Claim 8
Dependent Claim
26 words
The wireless communications system in claim 6 , wherein said means for reducing said speech coder transmission rate pertains only for calls that are not established.
Claim 9
Dependent Claim
32 words
The wireless communications system in claim 6 , wherein said means for reducing said speech coder transmission rate pertains to calls that are not established as well as calls that are established.
Claim 10
Dependent Claim
28 words
The wireless communications system in claim 6 further comprising: means for determining call blockage after adjusting said speech coder reduction; and means for adjusting a transmission error rate.
Claim 11
Dependent Claim
24 words
The wireless communication system in claim 9 wherein said means for adjusting said transmission error rate pertains only to calls that are not established.
Claim 12
Dependent Claim
28 words
The wireless communications system in claim 9 wherein said means for adjusting said transmission error rate pertains to calls that are not established and calls that are established.
Claim 13
Dependent Claim
25 words
The wireless communications system in claim 9 , wherein said means for adjusting said transmission error rate comprises: means for adjusting a frame error rate.
Claim 14
Dependent Claim
25 words
The wireless communications system in claim 12 , wherein said means for adjusting said frame error rate pertains only to calls that are not established.
Claim 15
Dependent Claim
30 words
The wireless communications system in claim 12 , wherein said means for adjusting said frame error rate pertains to calls that are not established and to calls that are established.
Claim 16
Dependent Claim
276 words
In a wireless communications system that provides wireless communication services to a plurality of wireless subscriber units extant in said wireless communication system, by utilizing a plurality of variable rate speech coders that have at least one adjustable operating parameter associated with a forward radio channel and having at least one adjustable operating parameter associated with a reverse radio channel, a method for minimizing a total power on at least one of said forward radio channel and said reverse radio channel, comprising the steps of: determining an occurrence of call blockage comprising: measuring a total power summed over all said wireless subscriber units being served on said forward radio channel, comparing said total power on said forward radio channel to at least one threshold associated with said forward radio channel in order to determine if said total power on said forward radio channel is greater than at least one of said at least one threshold associated with said forward radio channel, measuring a total power summed over all said wireless subscriber units being served on said reverse radio channel, comparing said total power on said reverse radio channel to at least one threshold associated with said reverse radio channel in order to determine if said total power on said reverse radio channel is greater than at least one of said at least one threshold associated with said reverse radio channel; and adjusting, in response to said occurrence of call blockage, at least one of said at least one adjustable operating parameter associated with at least one of said forward channel and said reverse channel, whereby a resulting call capacity of said wireless communications system is increased.
Claim 17
Dependent Claim
276 words
In a wireless communications system that provides wireless communication services to a plurality of wireless subscriber units extant in said wireless communication system, by utilizing a plurality of variable rate speech coders that have at least one adjustable operating parameter associated with a forward radio channel and having at least one adjustable operating parameter associated with a reverse radio channel, a method for minimizing a total power on at least one of said forward radio channel and said reverse radio channel, comprising the steps of: determining an occurrence of call blockage comprising: measuring a total power summed over all said wireless subscriber units being served on said forward radio channel, comparing said total power on said forward radio channel to at least one threshold associated with said forward radio channel in order to determine if said total power on said forward radio channel is greater than at least one of said at least one threshold associated with said forward radio channel, measuring a total power summed over all said wireless subscriber units being served on said reverse radio channel, comparing said total power on said reverse radio channel to at least one threshold associated with said reverse radio channel in order to determine if said total power on said reverse radio channel is greater than at least one of said at least one threshold associated with said reverse radio channel; and adjusting, in response to said occurrence of call blockage, at least one of said at least one adjustable operating parameter associated with at least one of said forward channel and said reverse channel, whereby a resulting call capacity of said wireless communications system is increased.
Claim 18
Dependent Claim
55 words
The method for minimizing said total power of claim 15 further comprising the steps of: identifying wireless subscriber units that are assigned a level of quality of service that is less than a predetermined threshold; and adjusting at least one of said at least one adjustable operating parameter only for said identified mobile subscriber units.
Claim 19
Dependent Claim
37 words
The method for minimizing said total power of claim 15 further comprising the step of: activating, in response to said occurrence of call blockage, said step of adjusting in only a portion of said wireless communications system.
Claim 20
Dependent Claim
33 words
The method for minimizing said total power of claim 15 further comprising the step of: activating, in response to said occurrence of call blockage, said step of adjusting according to time and date.
Claim 21
Dependent Claim
72 words
The method for minimizing said total power of claim 15 , wherein said step of adjusting at least one of said at least one adjustable operating parameter associated with said forward radio channel further comprises: reducing a speech coder transmission rate according to said threshold associated with said forward radio channel that is exceeded by said total power summed over all said wireless subscriber units being served on said forward radio channel.
Claim 22
Dependent Claim
72 words
The method for minimizing said total power of claim 15 , wherein said step of adjusting at least one of said at least one adjustable operating parameter associated with said reverse radio channel further comprises: reducing a speech coder transmission rate according to said threshold associated with said reverse radio channel that is exceeded by said total power summed over all said wireless subscriber units being served on said reverse radio channel.
Claim 23
Dependent Claim
28 words
The method for minimizing said total power of claim 20 , wherein said step of reducing said speech coder transmission pertains only for calls that are not established.
Claim 24
Dependent Claim
36 words
The method for minimizing said total power of claim 20 , wherein said step of reducing said speech coder transmission rate pertains to calls that are not established as well as for calls that are established.
Claim 25
Dependent Claim
31 words
The method for minimizing said total power of claim 20 further comprising the steps of: determining call blockage after reducing said speech coder transmission rate; and adjusting a transmission error rate.
Claim 26
Dependent Claim
27 words
The method for minimizing said total power of claim 23 , wherein said step adjusting said transmission error rate pertains only to calls that are not established.
Claim 27
Dependent Claim
32 words
The method for minimizing said total power of claim 23 , wherein said step of adjusting said transmission error rate pertains to calls that are not established and calls that are established.
Claim 28
Dependent Claim
26 words
The method for minimizing said total power of claim 23 , wherein said step of adjusting said transmission error rate comprises: adjusting a frame error rate.
Claim 29
Dependent Claim
28 words
The method for minimizing said total power of claim 26 , wherein said step of adjusting said frame error rate pertains only to calls that are not established.
Claim 30
Dependent Claim
33 words
The method for minimizing said total power of claim 26 , wherein said step of adjusting said frame error rate pertains to calls that are not established and to calls that are established.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2005-12-30 | 2006-07-01 | 2006-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-12-30 | 2010-07-01 | 2010-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-12-30 | 2014-07-01 | 2014-12-31 | $7700.00 | Window Closed / Lapsed |