Patent US6516196B1 successfully refreshed from Google Patents.
US6516196B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intelligent burst control functions for wireless communications systems
Assignee: Nokia of America Corp
•
Filing: 1999-04-08
•
Granted: 2003-02-04
•
Expires: 2019-04-08
Abstract
Abstract The invention provides a novel methodology for increasing the performance of CDMA systems with packet data services by accommodating a variety of users with different rates. The invention operates to increase the spectrum efficiency of a wireless system by using an optimal transmission set of base transceiver stations and assigning proper data rates to efficiently utilize the radio resources. In particular, the invention operates to decrease interference so that the quality of data transmission in CDMA systems is advantageously maintained. Moreover, the invention operates to increase the allocation of bandwidth, particularly for high-speed data services. The invention provides a methodology to evaluate the data rates of different combinations of BTSs that may be in connection with a particular mobile station (MS), allocate an appropriate data rate for the MS and make allocation of system resources more efficient in a multi-user environment.
Inventors
- 👤 Tsao-Tsen Chen
- 👤 Wen-Yi Kuo
- 👤 Martin Howard Meyers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:52
CPC Classifications
H; H04; H04W; H04W28/00; H04W28/16; H04W28/18; H04W28/22; H04B; H04B17/00; H04B17/30; H04B17/309; H04B17/318; H04W36/00; H04W36/16; H04W36/18; H04W52/00; H04W52/04; H04W52/30; H04W52/34; H04W52/343; H04W36/0005; H04W36/0055; H04W36/0069; H04W36/00692; H04W72/00; H04W72/04; H04W72/044; H04W72/0453
Claims Analysis
Total Claims: 39
Claim 1
Independent Claim
93 words
A resource allocation method for a wireless communication system having a plurality of base transceiver stations operative to serve a plurality of mobile stations and wherein an active set of base transceiver stations is determined with respect to a mobile station, the method comprising the steps of: creating a plurality of reduced active sets from combinations of base transceiver stations in the active set; determining an affordable data rate for each of the reduced active sets; and selecting a data rate from the affordable data rate of each of the reduced active sets.
Claim 2
Dependent Claim
93 words
A resource allocation method for a wireless communication system having a plurality of base transceiver stations operative to serve a plurality of mobile stations and wherein an active set of base transceiver stations is determined with respect to a mobile station, the method comprising the steps of: creating a plurality of reduced active sets from combinations of base transceiver stations in the active set; determining an affordable data rate for each of the reduced active sets; and selecting a data rate from the affordable data rate of each of the reduced active sets.
Claim 3
Dependent Claim
27 words
The method in claim 1 , further comprising the step of evaluating a power parameter of base transceiver stations in the at least one reduced active set.
Claim 4
Dependent Claim
113 words
The method in claim 1 , further comprising the step of detecting a relative signal strength received at the mobile station from a reduced active set of base transceiver stations, wherein the reduced active set is selected from the group consisting of: a strongest set only; a second strongest set only; the strongest set and the second strongest set only; the strongest set and a third strongest set only; the second strongest set and the third strongest set only; and the strongest set, the second strongest set and the third strongest set wherein the strongest set, the second strongest set and the third strongest set comprises base transceiver stations from the active set.
Claim 5
Dependent Claim
43 words
The method in claim 1 , further comprising the step of calculating a power adjustment for the at least one reduced active set, wherein the affordable data rate of the at least one reduced active set is calculated based on the power adjustment.
Claim 6
Dependent Claim
43 words
The method in claim 4 , further comprising the step of creating at least one lookup table established to receive input parameters of geometry, frame error rate and coding structure, wherein the power adjustment is determined from the at least one lookup table.
Claim 7
Dependent Claim
36 words
The method in claim 1 , wherein the affordable data rate of a reduced active set is a minimum data rate of all of the data rates of base transceiver stations in the reduced active set.
Claim 8
Dependent Claim
24 words
The method in claim 1 , wherein the selected data rate is a maximum affordable data rate of all of the affordable data rates.
Claim 9
Dependent Claim
44 words
the method in claim 1 , further comprising the step of creating at least one lookup table established to receive input parameters of geometry, frame error rate and coding structure, wherein the affordable data rate is determined from the at least one lookup table.
Claim 10
Dependent Claim
26 words
The method in claim 1 wherein the system is a CDMA system having a forward link and a reverse link, the system having burst transmission capability.
Claim 11
Dependent Claim
132 words
A resource allocation method for a wireless communication system having a plurality of base transceiver stations operative to serve a plurality of mobile stations and wherein an active set of base transceiver stations is determined with respect to a mobile station, the method comprising the steps of: creating at least one reduced active set from combinations of base transceiver stations in the active set; determining an affordable data rate for each of the at least one reduced active set; and selecting a data rate from the affordable data rate of each of the at least one reduced active set, further comprising the step of calculating a geometry for each of the at least one reduced active set of base transceiver stations, wherein the geometry is a metric that approximates a signal-to-interference ratio.
Claim 12
Dependent Claim
132 words
A resource allocation method for a wireless communication system having a plurality of base transceiver stations operative to serve a plurality of mobile stations and wherein an active set of base transceiver stations is determined with respect to a mobile station, the method comprising the steps of: creating at least one reduced active set from combinations of base transceiver stations in the active set; determining an affordable data rate for each of the at least one reduced active set; and selecting a data rate from the affordable data rate of each of the at least one reduced active set, further comprising the step of calculating a geometry for each of the at least one reduced active set of base transceiver stations, wherein the geometry is a metric that approximates a signal-to-interference ratio.
Claim 13
Dependent Claim
72 words
The method in claim 10 wherein the geometry of the at least one reduced active set is calculated based on: geometry=(sum of power of the reduced active set)/(other) wherein sum of power of the reduced active set is total power of all base transceiver stations in the at least one reduced active set received by the mobile station, and other is a sum of all other power received by the mobile station.
Claim 14
Dependent Claim
80 words
The method in claim 10 wherein the geometry of a reduced active set is calculated based on: geometry=(reduced active set)/(other BTSs in the active set+other) wherein reduced active set is total power of all base transceiver stations in the reduced active set received by the mobile station, other BTSs in the active set is the power of all other base transceiver stations in the active set, and other is a sum of all other power received by the mobile station.
Claim 15
Dependent Claim
34 words
The method in claim 10 , further comprising the step of creating at least one lookup table established to receive input parameters, wherein the geometry is determined from the at least one lookup table.
Claim 16
Dependent Claim
222 words
A resource allocation method for a wireless communication system having a plurality of base transceiver stations operative to serve a plurality of mobile stations and wherein an active set of base transceiver stations is determined with respect to a mobile station, the method comprising the steps of: creating at least one reduced active set from combinations of base transceiver stations in the active set; determining an affordable data rate for each of the at least one reduced active set; and selecting a data rate from the affordable data rate of each of the at least one reduced active set, further comprising the step of calculating a power adjustment for at least one reduced active set, wherein the affordable data rate of the at least one reduced active set is calculated based on the power adjustment, wherein the power adjustment is calculated based on: adjustment = 10 { slope_t re log 10 ( Active set geometry Reduced active set geometry ) + 0.1 · OFFSET_FP } wherein Active set geometry is a geometry for the active set of base transceiver stations corresponding to the mobile station, Reduced active set geometry is the geometry of a reduced active set of base transceiver stations, and slope_t and OFFSET_FP are predetermined parameters.
Claim 17
Dependent Claim
222 words
A resource allocation method for a wireless communication system having a plurality of base transceiver stations operative to serve a plurality of mobile stations and wherein an active set of base transceiver stations is determined with respect to a mobile station, the method comprising the steps of: creating at least one reduced active set from combinations of base transceiver stations in the active set; determining an affordable data rate for each of the at least one reduced active set; and selecting a data rate from the affordable data rate of each of the at least one reduced active set, further comprising the step of calculating a power adjustment for at least one reduced active set, wherein the affordable data rate of the at least one reduced active set is calculated based on the power adjustment, wherein the power adjustment is calculated based on: adjustment = 10 { slope_t re log 10 ( Active set geometry Reduced active set geometry ) + 0.1 · OFFSET_FP } wherein Active set geometry is a geometry for the active set of base transceiver stations corresponding to the mobile station, Reduced active set geometry is the geometry of a reduced active set of base transceiver stations, and slope_t and OFFSET_FP are predetermined parameters.
Claim 18
Dependent Claim
121 words
The method in claim 14 , wherein the affordable data rate is determined based on: affordable data rate = min reduced active set { 1 - headroom - loading + P data ¨ P DCCH · adjustment } · 9600 ( bps ) wherein P data is a data channel power mean, and P DCCH =DCCH power mean+ Fw _scal_std{square root over ( DDCH power variance)} wherein DCCH power mean is a specific power mean, Fw_scal_std is a scaling parameter, loading is power loading, {square root over (DDCH power variance)} is a standard deviation of power, adjustment is the calculated power adjustment, and headroom is a predetermined parameter.
Claim 19
Dependent Claim
91 words
A wireless communication system having a plurality of base transceiver stations operative to serve a plurality of mobile stations and wherein an active set of base transceiver stations is determined with respect to a mobile station, the system comprising: means for creating a plurality of reduced active sets from combinations of base transceiver stations in the active set; means for determining an affordable data rate for each of the reduced active sets; and means for selecting a data rate from the affordable data rate of each of the reduced active sets.
Claim 20
Dependent Claim
91 words
A wireless communication system having a plurality of base transceiver stations operative to serve a plurality of mobile stations and wherein an active set of base transceiver stations is determined with respect to a mobile station, the system comprising: means for creating a plurality of reduced active sets from combinations of base transceiver stations in the active set; means for determining an affordable data rate for each of the reduced active sets; and means for selecting a data rate from the affordable data rate of each of the reduced active sets.
Claim 21
Dependent Claim
26 words
The system in claim 16 , further comprising means for evaluating a power parameter of base transceiver stations in the at least one reduced active set.
Claim 22
Dependent Claim
113 words
The system in claim 16 , further comprising the means for detecting a relative signal strength received at the mobile station from a reduced active set of base transceiver stations, wherein the reduced active set is selected from the group consisting of: a strongest set only; a second strongest set only; the strongest set and the second strongest set only; the strongest set and a third strongest set only; the second strongest set and the third strongest set only; and the strongest set, the second strongest set and the third strongest set wherein the strongest set, the second strongest set and the third strongest set comprises base transceiver stations from the active set.
Claim 23
Dependent Claim
43 words
The system in claim 16 , further comprising the means for calculating a power adjustment for the at least one reduced active set, wherein the affordable data rate of the at least one reduced active set is calculated based on the power adjustment.
Claim 24
Dependent Claim
39 words
The system in claim 19 , further comprising at least one lookup table established to receive input parameters of geometry, frame error rate and coding structure, wherein the power adjustment is determined from the at least one lookup table.
Claim 25
Dependent Claim
38 words
The system in claim 16 , wherein the affordable data rate of a reduced active set is a minimum data rate of all of all of the data rates of base transceiver stations in the reduced active set.
Claim 26
Dependent Claim
24 words
The system in claim 16 , wherein the selected data rate is a maximum affordable data rate of all of the affordable data rates.
Claim 27
Dependent Claim
40 words
The system in claim 16 , further comprising at least one lookup table established to receive input parameters of geometry, frame error rate and coding structure, wherein the affordable data rate is determined from the at least one lookup table.
Claim 28
Dependent Claim
25 words
The system in claim 16 wherein the system is a CDMA system having a forward link and a reverse link, the system burst transmission capability.
Claim 29
Dependent Claim
129 words
A wireless communication system having a plurality of base transceiver stations operative to serve a plurality of mobile stations and wherein an active set of base transceiver stations is determined with respect to a mobile station, the system comprising: means for creating at least one reduced active set from combinations of base transceiver stations in the active set; means for determining an affordable data rate for each of the at least one reduced active set; and means for selecting a data rate from the affordable data rate of each of the at least one reduced active set, further comprising means for calculating a geometry for each of the at least one reduced active set of base transceiver stations, wherein the geometry is a metric that approximates a signal-to-interference ratio.
Claim 30
Dependent Claim
129 words
A wireless communication system having a plurality of base transceiver stations operative to serve a plurality of mobile stations and wherein an active set of base transceiver stations is determined with respect to a mobile station, the system comprising: means for creating at least one reduced active set from combinations of base transceiver stations in the active set; means for determining an affordable data rate for each of the at least one reduced active set; and means for selecting a data rate from the affordable data rate of each of the at least one reduced active set, further comprising means for calculating a geometry for each of the at least one reduced active set of base transceiver stations, wherein the geometry is a metric that approximates a signal-to-interference ratio.
Claim 31
Dependent Claim
72 words
The system in claim 25 wherein the geometry of the at least one reduced active set is calculated based on: geometry=(sum of power of the reduced active set)/(other) wherein sum of power of the reduced active set is total power of all base transceiver stations in the at least one reduced active set received by the mobile station, and other is a sum of all other power received by the mobile station.
Claim 32
Dependent Claim
80 words
The system in claim 25 wherein the geometry of a reduced active set is calculated based on: geometry=(reduced active set)/(other BTSs in the active set+other) wherein reduced active set is total power of all base transceiver stations in the reduced active set received by the mobile station, other BTSs in the active set is the power of all other base transceiver stations in the active set, and other is a sum of all other power received by the mobile station.
Claim 33
Dependent Claim
30 words
The system in claim 25 , further comprising at least one lookup table established to receive input parameters, wherein the geometry is determined from the at least one lookup table.
Claim 34
Dependent Claim
221 words
A wireless communication system having a plurality of base transceiver stations operative to serve a plurality of mobile stations and wherein an active set of base transceiver stations is determined with respect to a mobile station, the system comprising: means for creating at least one reduced active set from combinations of base transceiver stations in the active set; means for determining an affordable data rate for each of the at least one reduced active set; and means for selecting a data rate from the affordable data rate of each of the at least one reduced active set, further comprising the means for calculating a power adjustment for the at least one reduced active set, wherein the affordable data rate of the at least one reduced active set is calculated based on the power adjustment, wherein the power adjustment is calculated based on: adjustment = 10 { slope_t re log 10 ( Active set geometry Reduced active set geometry ) + 0.1 · OFFSET_FP } wherein Active set geometry is a geometry for the active set of base transceiver stations corresponding to the mobile station, Reduced active set geometry is the geometry of a reduced active set of base transceiver stations, and slope_t and OFFSET_FP are predetermined parameters.
Claim 35
Dependent Claim
221 words
A wireless communication system having a plurality of base transceiver stations operative to serve a plurality of mobile stations and wherein an active set of base transceiver stations is determined with respect to a mobile station, the system comprising: means for creating at least one reduced active set from combinations of base transceiver stations in the active set; means for determining an affordable data rate for each of the at least one reduced active set; and means for selecting a data rate from the affordable data rate of each of the at least one reduced active set, further comprising the means for calculating a power adjustment for the at least one reduced active set, wherein the affordable data rate of the at least one reduced active set is calculated based on the power adjustment, wherein the power adjustment is calculated based on: adjustment = 10 { slope_t re log 10 ( Active set geometry Reduced active set geometry ) + 0.1 · OFFSET_FP } wherein Active set geometry is a geometry for the active set of base transceiver stations corresponding to the mobile station, Reduced active set geometry is the geometry of a reduced active set of base transceiver stations, and slope_t and OFFSET_FP are predetermined parameters.
Claim 36
Dependent Claim
121 words
The system in claim 29 , wherein the affordable data rate is calculated based on; affordable data rate = min reduced active set { 1 - headroom - loading + P data ¨ P DCCH · adjustment } · 9600 ( bps ) wherein P data is a data channel power mean, and P DCCH =DCCH power mean+ Fw _scal_std{square root over ( DDCH power variance)} wherein DCCH power mean is a specific power mean, Fw_scal_std is a scaling parameter, loading is power loading, {square root over (DDCH power variance)} is a standard deviation of power, adjustment is the calculated power adjustment, and headroom is a predetermined parameter.
Claim 37
Dependent Claim
118 words
A resource allocation method for a wireless communication system wherein a plurality of base transceiver stations is in communication with a mobile station at certain times and wherein an active set of base transceiver stations including more than one base transceiver station is determined with respect to a mobile station, the method comprising the steps of: creating a plurality of reduced active sets from combinations of base transceiver stations in the active set, determining an affordable data rate for each reduced active set, said affordable data rate being a function of available power in each base transceiver station in the reduced active set; and selecting a data rate from the affordable data rates for the reduced active sets.
Claim 38
Dependent Claim
118 words
A resource allocation method for a wireless communication system wherein a plurality of base transceiver stations is in communication with a mobile station at certain times and wherein an active set of base transceiver stations including more than one base transceiver station is determined with respect to a mobile station, the method comprising the steps of: creating a plurality of reduced active sets from combinations of base transceiver stations in the active set, determining an affordable data rate for each reduced active set, said affordable data rate being a function of available power in each base transceiver station in the reduced active set; and selecting a data rate from the affordable data rates for the reduced active sets.
Claim 39
Dependent Claim
23 words
The method of claim 31 wherein at least one of the plurality of reduced active sets includes more than one base transceiver station.
References Cited (Backward Citations)
US5790536A
Cited
US5530917A
Cited
US5857147A
Cited
US5652748A
Cited
US5856971A
Cited
US5809430A
Cited
US6021122A
Cited
US5828662A
Cited
US5850605A
Cited
US6219343B1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2006-02-03 | 2006-08-05 | 2007-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-02-03 | 2010-08-05 | 2011-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-02-03 | 2014-08-05 | 2015-02-04 | $7700.00 | Window Closed / Lapsed |