Patent US6760587B2 successfully refreshed from Google Patents.
US6760587B2
Expired / Lapsed
US
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Forward-link scheduling in a wireless communication system during soft and softer handoff
Assignee: Qualcomm Inc
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Filing: 2001-02-23
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Granted: 2004-07-06
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Expires: 2021-02-23
Abstract
Abstract A method and apparatus for scheduling transmit rates and power levels for data in conjunction with a voice-data communication during conditions of soft and softer handoff. During conditions of no handoff, or hard handoff, an algorithm selects a slot reflecting a favored power level and transmission rate for transmitting the non-voice data on a supplemental channel. The slot is selected based upon the transmission power levels for voice-data transmitted by a base station to a remote station on a fundamental channel. The algorithm applies to softer handoff using information from all the sectors of a base station involved in the softer handoff. During soft handoff, instead of scheduling forward link transmission based on recent power and rate, or C/I information, data is continuously transmitted to the user at a power level based on average required power.
Inventors
- 👤 Jack M. Holtzman
- 👤 Gang Bao
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:25
CPC Classifications
H; H04; H04W; H04W52/00; H04W52/04; H04W52/18; H04W52/22; H04W52/223; H04W24/00; H04W28/00; H04W28/16; H04W28/18; H04W52/221; H04W52/225; H04W52/26; H04W52/38; H04W52/40; H04W72/00; H04W72/12; H04W72/1263; H04W72/1273; H04W36/00; H04W36/16; H04W36/18; H04W52/30; H04W52/34
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
113 words
A method of scheduling transmit rates and transmit power levels of data users in a wireless communication system during softer handoff, comprising: transmitting signals between a base station having at least two sectors and a remote station via at least one first channel per sector, wherein the transmitted signals comprise voice-data; measuring at the base station a ratio of transmission power levels for the voice-data transmitted via the at least one first channel per sector; determining a historical profile for the ratio of transmission power levels; and using the historical profile for the ratio of transmission power levels to select a second channel transmission power level and data rate for transmitting additional data.
Claim 2
Independent Claim
113 words
A method of scheduling transmit rates and transmit power levels of data users in a wireless communication system during softer handoff, comprising: transmitting signals between a base station having at least two sectors and a remote station via at least one first channel per sector, wherein the transmitted signals comprise voice-data; measuring at the base station a ratio of transmission power levels for the voice-data transmitted via the at least one first channel per sector; determining a historical profile for the ratio of transmission power levels; and using the historical profile for the ratio of transmission power levels to select a second channel transmission power level and data rate for transmitting additional data.
Claim 3
Dependent Claim
67 words
The method in accordance with claim 1 , further comprising: measuring at the remote station transmission metrics reflecting the quality of voice-data signals received from the base station sectors; messaging from the remote station to the base station any change or non-change in the voice-data quality; and adjusting or not adjusting the transmission power in consideration of said messages for voice-data transmitted by the base station sectors.
Claim 4
Dependent Claim
116 words
A signal bearing medium tangibly embodying a program of machine-readable instructions executable by a processor to perform a method for predicting a favored slot for transmitting data in a wireless communication system during softer handoff, the instructions comprising: transmitting signals containing voice-data between a base station having at least two sectors and a remote station; measuring at the base station a ratio of transmission power levels for voice-data transmitted via the at least one first channel per sector; determining a historical profile for the ratio of transmission power levels; and using the historical profile of the ratio of transmission power levels to select a second channel transmission power level and data rate for transmitting additional data.
Claim 5
Dependent Claim
116 words
A signal bearing medium tangibly embodying a program of machine-readable instructions executable by a processor to perform a method for predicting a favored slot for transmitting data in a wireless communication system during softer handoff, the instructions comprising: transmitting signals containing voice-data between a base station having at least two sectors and a remote station; measuring at the base station a ratio of transmission power levels for voice-data transmitted via the at least one first channel per sector; determining a historical profile for the ratio of transmission power levels; and using the historical profile of the ratio of transmission power levels to select a second channel transmission power level and data rate for transmitting additional data.
Claim 6
Dependent Claim
75 words
The signal-bearing medium in accordance with claim 3 , wherein the instructions further comprise: measuring at the remote station transmission metrics reflecting the quality of voice-data signals received from the sectors of the base station; messaging from the remote station to the base station any change or non-change in the voice-data quality; and adjusting or not adjusting the transmission power of the sectors in consideration of said messages for voice-data transmitted by the base station.
Claim 7
Dependent Claim
69 words
The signal-bearing medium in accordance with claim 3 , wherein the instructions further comprise: measuring at the remote station transmission metrics reflecting the quality of voice-data signals received from the base station; messaging from the remote station to the base station any change or non-change in the voice-data quality; and adjusting or not adjusting the transmission power in consideration of said messages for voice-data transmitted by the base station.
Claim 8
Dependent Claim
152 words
A base station for scheduling transmit rates and transmit power levels of data users in a wireless communication system during softer handoff, the base station having at least two sectors communicatively coupled to a remote station, wherein the base station may communicate with the remote station using more than one channel, the base station comprising: a transmitter, the transmitter capable of transmitting voice and non-voice data signals between a base station and a remote station; and a processor communicatively coupled to the transmitter and capable of executing instructions to: measure at the base station transmission power levels for voice-data transmitted to the remote station via at least one first channel per sector; determine a dynamic transmission power level for transmissions made via the at least one first channel per sector; and use the dynamic transmission power level to select a second channel transmission slot for transmitting additional data to the remote station.
Claim 9
Dependent Claim
152 words
A base station for scheduling transmit rates and transmit power levels of data users in a wireless communication system during softer handoff, the base station having at least two sectors communicatively coupled to a remote station, wherein the base station may communicate with the remote station using more than one channel, the base station comprising: a transmitter, the transmitter capable of transmitting voice and non-voice data signals between a base station and a remote station; and a processor communicatively coupled to the transmitter and capable of executing instructions to: measure at the base station transmission power levels for voice-data transmitted to the remote station via at least one first channel per sector; determine a dynamic transmission power level for transmissions made via the at least one first channel per sector; and use the dynamic transmission power level to select a second channel transmission slot for transmitting additional data to the remote station.
Claim 10
Independent Claim
125 words
A method of scheduling transmit rates and transmit power levels of data users in a wireless communication system, comprising: transmitting signals between a base station and a remote station via at least one first channel, wherein the transmitted signals comprise voice-data; measuring at the base station transmission power levels for the voice-data transmitted via the at least one first channel; determining a historical profile for the transmission power levels; using the historical profile for the transmission power levels to select a second channel transmission power level and data rate for transmitting additional data; selecting a soft handoff power level and transmission rate based on average required power; and transmitting continuously to the user at the soft handoff power level and transmission rate during soft handoff.
Claim 11
Independent Claim
125 words
A method of scheduling transmit rates and transmit power levels of data users in a wireless communication system, comprising: transmitting signals between a base station and a remote station via at least one first channel, wherein the transmitted signals comprise voice-data; measuring at the base station transmission power levels for the voice-data transmitted via the at least one first channel; determining a historical profile for the transmission power levels; using the historical profile for the transmission power levels to select a second channel transmission power level and data rate for transmitting additional data; selecting a soft handoff power level and transmission rate based on average required power; and transmitting continuously to the user at the soft handoff power level and transmission rate during soft handoff.
Claim 12
Dependent Claim
63 words
The method of claim 7 , further comprising: measuring at the remote station transmission metrics reflecting the quality of voice-data signals received from the base station; messaging from the remote station to the base station any change or non-change in the voice-data quality; and adjusting or not adjusting the transmission power in consideration of said messages for voice-data transmitted by the base station.
Claim 13
Dependent Claim
132 words
A signal bearing medium tangibly embodying a program of machine-readable instructions executable by a processor to perform a method for scheduling transmit rates and transmit power levels of data users in a wireless communication system, the instructions comprising: transmitting signals containing voice-data between a base station and a remote station; measuring at the base station transmission power levels for voice-data transmitted via at least one first channel; determining a historical profile for the transmission power levels; using the historical profile of the transmission power levels to select a second channel transmission power level and data rate for transmitting additional data; selecting a soft handoff power level and transmission rate based on average required power; and transmitting continuously to the user at the soft handoff power level and transmission rate during soft handoff.
Claim 14
Dependent Claim
132 words
A signal bearing medium tangibly embodying a program of machine-readable instructions executable by a processor to perform a method for scheduling transmit rates and transmit power levels of data users in a wireless communication system, the instructions comprising: transmitting signals containing voice-data between a base station and a remote station; measuring at the base station transmission power levels for voice-data transmitted via at least one first channel; determining a historical profile for the transmission power levels; using the historical profile of the transmission power levels to select a second channel transmission power level and data rate for transmitting additional data; selecting a soft handoff power level and transmission rate based on average required power; and transmitting continuously to the user at the soft handoff power level and transmission rate during soft handoff.
Claim 15
Dependent Claim
171 words
A base station for scheduling transmit rates and transmit power levels of data users in a wireless communication system, the base station communicatively coupled to a remote station, wherein the base station may communicate with the remote station using more than one channel, the base station comprising: a transmitter, the transmitter capable of transmitting voice and non-voice data signals between a base station and a remote station; and a processor communicatively coupled to the transmitter and capable of executing instructions to: measure at the base station transmission power levels for voice-data transmitted to the remote station via at least one first channel; determine a dynamic transmission power level for transmissions made via the at least one first channel; use the dynamic transmission power level to select a second channel transmission slot for transmitting additional data to the remote station; select a soft handoff power level and transmission rate based on average required power; and transmit continuously to the user at the soft handoff power level and transmission rate during soft handoff.
Claim 16
Dependent Claim
171 words
A base station for scheduling transmit rates and transmit power levels of data users in a wireless communication system, the base station communicatively coupled to a remote station, wherein the base station may communicate with the remote station using more than one channel, the base station comprising: a transmitter, the transmitter capable of transmitting voice and non-voice data signals between a base station and a remote station; and a processor communicatively coupled to the transmitter and capable of executing instructions to: measure at the base station transmission power levels for voice-data transmitted to the remote station via at least one first channel; determine a dynamic transmission power level for transmissions made via the at least one first channel; use the dynamic transmission power level to select a second channel transmission slot for transmitting additional data to the remote station; select a soft handoff power level and transmission rate based on average required power; and transmit continuously to the user at the soft handoff power level and transmission rate during soft handoff.
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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) | 2007-07-06 | 2008-01-05 | 2008-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2011-07-06 | 2012-01-05 | 2012-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2015-07-06 | 2016-01-05 | 2016-07-06 | $7700.00 | Window Closed / Lapsed |