US5487180A
Expired / Lapsed
US
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Method of determining initial transmission power
Assignee: Fujitsu Ltd
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Filing: 1994-03-17
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Granted: 1996-01-23
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Expires: 2014-03-17
Abstract
Abstract A method for determining an initial transmission power in a mobile communication system having a base station and at least one mobile station includes measuring at the mobile station, a reception level of a control channel leading from the base station to the mobile station, and determining an initial transmission power value of a talk channel leading from the base station to the mobile station, based on the reception level measured at the mobile station.
Inventors
- 👤 Koji Ohtake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:25
CPC Classifications
H; H04; H04W; H04W52/00; H04W52/04; H04W52/38; H04W52/50; H04W52/06; H04W52/16
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
165 words
A method of determining an initial transmission power in a mobile communication system having a base station and at least one mobile station, a control channel leading from the base station to the mobile station and a talk channel leading from the base station to the mobile station, said method comprising the steps of: (a) measuring, at the mobile station, a reception level of said control channel leading from the base station to the mobile station; (b) obtaining a comparison result, at the mobile station, by comparing the measured reception level with a threshold value which is used to determine an initial transmission power value of said talk channel; (c) determining, at the mobile station, the initial transmission power value of said talk channel based on the comparison result, and reporting the initial transmission power value of said talk channel to the base station; and (d) setting, at the base station, the initial transmission power value of said talk channel, reported from the mobile station.
Claim 2
Independent Claim
165 words
A method of determining an initial transmission power in a mobile communication system having a base station and at least one mobile station, a control channel leading from the base station to the mobile station and a talk channel leading from the base station to the mobile station, said method comprising the steps of: (a) measuring, at the mobile station, a reception level of said control channel leading from the base station to the mobile station; (b) obtaining a comparison result, at the mobile station, by comparing the measured reception level with a threshold value which is used to determine an initial transmission power value of said talk channel; (c) determining, at the mobile station, the initial transmission power value of said talk channel based on the comparison result, and reporting the initial transmission power value of said talk channel to the base station; and (d) setting, at the base station, the initial transmission power value of said talk channel, reported from the mobile station.
Claim 3
Independent Claim
205 words
A method of determining an initial transmission power in a mobile communication system having a base station and at least one mobile station, a control channel leading from the mobile station to the base station and a talk channel leading from the mobile station to the base station, said method comprising the steps of: (a) reporting from the mobile station a transmission power value of said control channel to the base station; (b) measuring, at the base station, a reception level of said control channel leading from the mobile station to the base station in response to the report made in said step (a); (c) obtaining a comparison result, at the base station, by comparing the measured reception level with a threshold value which is used to determine an initial transmission power value of said talk channel; (d) notifying from the base station to the mobile station, as the initial transmission power value of said talk channel, a value which is obtained by correcting a transmission power value of said control channel reported from the mobile station by the comparison result; and (e) setting, at the mobile station, the value notified by said step (d) as the initial transmission power value of said talk channel.
Claim 4
Independent Claim
205 words
A method of determining an initial transmission power in a mobile communication system having a base station and at least one mobile station, a control channel leading from the mobile station to the base station and a talk channel leading from the mobile station to the base station, said method comprising the steps of: (a) reporting from the mobile station a transmission power value of said control channel to the base station; (b) measuring, at the base station, a reception level of said control channel leading from the mobile station to the base station in response to the report made in said step (a); (c) obtaining a comparison result, at the base station, by comparing the measured reception level with a threshold value which is used to determine an initial transmission power value of said talk channel; (d) notifying from the base station to the mobile station, as the initial transmission power value of said talk channel, a value which is obtained by correcting a transmission power value of said control channel reported from the mobile station by the comparison result; and (e) setting, at the mobile station, the value notified by said step (d) as the initial transmission power value of said talk channel.
Claim 5
Independent Claim
220 words
A method of determining an initial transmission power in a mobile communication system having a base station and at least one mobile station, a control channel leading from the mobile station to the base station and a talk channel leading from the mobile station to the base station, said method comprising the steps of: (a) reporting from the mobile station to the base station, information about a mobile station type and a control value which is used for an autonomous transmission power control of a transmission power of said control channel; (b) measuring, at the base station, a reception level of said control channel and obtaining a comparison result by comparing the measured reception level with a threshold value which is used to determine an initial transmission power value of said talk channel; (c) notifying from the base station to the mobile station, as the initial transmission power value of said talk channel dependent on the mobile station type, a value which is obtained by correcting by the comparison result a transmission power value which is determined by said information about the mobile station type and the control value which are reported in said step (a); and (d) setting, at the mobile station, the value notified by said step (c) as the initial transmission power value of said talk channel.
Claim 6
Independent Claim
220 words
A method of determining an initial transmission power in a mobile communication system having a base station and at least one mobile station, a control channel leading from the mobile station to the base station and a talk channel leading from the mobile station to the base station, said method comprising the steps of: (a) reporting from the mobile station to the base station, information about a mobile station type and a control value which is used for an autonomous transmission power control of a transmission power of said control channel; (b) measuring, at the base station, a reception level of said control channel and obtaining a comparison result by comparing the measured reception level with a threshold value which is used to determine an initial transmission power value of said talk channel; (c) notifying from the base station to the mobile station, as the initial transmission power value of said talk channel dependent on the mobile station type, a value which is obtained by correcting by the comparison result a transmission power value which is determined by said information about the mobile station type and the control value which are reported in said step (a); and (d) setting, at the mobile station, the value notified by said step (c) as the initial transmission power value of said talk channel.
Claim 7
Dependent Claim
24 words
A method according to claim 3, wherein said information is indicative of a maximum transmission power at which the mobile station can transmit signals.
Claim 8
Independent Claim
160 words
A method of determining an initial transmission power in a mobile communication system having a base station and at least one mobile station, a control channel leading from the mobile station to the base station and a talk channel heading from the mobile station to the base station, said method comprising the steps of: (a) measuring, at the base station, a reception level of said control channel leading from the mobile station to the base station, and notifying the measured reception level to the mobile station; (b) obtaining a comparison result at the mobile station by comparing the measured reception level notified by said step (a) with a threshold value which is used to determine an initial transmission power value of said talk channel; and (c) setting, at the mobile station, as the initial transmission power value of said talk channel, a value which is obtained by correcting a transmission power value of said control channel by the comparison result.
Claim 9
Independent Claim
160 words
A method of determining an initial transmission power in a mobile communication system having a base station and at least one mobile station, a control channel leading from the mobile station to the base station and a talk channel heading from the mobile station to the base station, said method comprising the steps of: (a) measuring, at the base station, a reception level of said control channel leading from the mobile station to the base station, and notifying the measured reception level to the mobile station; (b) obtaining a comparison result at the mobile station by comparing the measured reception level notified by said step (a) with a threshold value which is used to determine an initial transmission power value of said talk channel; and (c) setting, at the mobile station, as the initial transmission power value of said talk channel, a value which is obtained by correcting a transmission power value of said control channel by the comparison result.
Claim 10
Independent Claim
172 words
A method of determining an initial transmission power in a mobile communication system having a base station and at least one mobile station, a control channel leading from the mobile station to the base station and a talk channel leading from the mobile station to the base station, said method comprising the steps of: (a) measuring, at the base station, a reception level of said control channel leading from the mobile station to the base station, and notifying to the mobile station, a comparison result which is obtained by comparing the measured reception level with a threshold value which is used to determine an initial transmission power value of said talk channel; and (b) determining, at the mobile station, as the initial transmission power value of said talk channel, a value which is obtained by correcting by the comparison result notified by said step (a), a transmission power value which is determined by information about the mobile station type and a control value which is used for an autonomous transmission power control.
Claim 11
Independent Claim
172 words
A method of determining an initial transmission power in a mobile communication system having a base station and at least one mobile station, a control channel leading from the mobile station to the base station and a talk channel leading from the mobile station to the base station, said method comprising the steps of: (a) measuring, at the base station, a reception level of said control channel leading from the mobile station to the base station, and notifying to the mobile station, a comparison result which is obtained by comparing the measured reception level with a threshold value which is used to determine an initial transmission power value of said talk channel; and (b) determining, at the mobile station, as the initial transmission power value of said talk channel, a value which is obtained by correcting by the comparison result notified by said step (a), a transmission power value which is determined by information about the mobile station type and a control value which is used for an autonomous transmission power control.
Claim 12
Independent Claim
179 words
A method of determining an initial transmission power in a mobile communication system having a base station and at least one mobile station, a control channel leading from the mobile station to the base station and a talk channel leading from the mobile station to the base station, said method comprising the steps of: (a) measuring, at the base station, a reception level of said control channel leading from the mobile station to the base station, and notifying the measured reception level to the mobile station; (b) obtaining a comparison result, at the mobile station, by comparing the measured reception level notified by said step (a) with a threshold value which is used to determine an initial transmission power value of said talk channel; and (c) setting, at the mobile station, as the initial transmission power value of said talk channel, a value which is obtained by correcting by the comparison result a transmission power value which is determined by information about the mobile station type and a control value which is used for an autonomous transmission power control.
Claim 13
Independent Claim
179 words
A method of determining an initial transmission power in a mobile communication system having a base station and at least one mobile station, a control channel leading from the mobile station to the base station and a talk channel leading from the mobile station to the base station, said method comprising the steps of: (a) measuring, at the base station, a reception level of said control channel leading from the mobile station to the base station, and notifying the measured reception level to the mobile station; (b) obtaining a comparison result, at the mobile station, by comparing the measured reception level notified by said step (a) with a threshold value which is used to determine an initial transmission power value of said talk channel; and (c) setting, at the mobile station, as the initial transmission power value of said talk channel, a value which is obtained by correcting by the comparison result a transmission power value which is determined by information about the mobile station type and a control value which is used for an autonomous transmission power control.
Claim 14
Dependent Claim
24 words
A method according to claim 7, wherein said information is indicative of a maximum transmission power at which the mobile station can transmit signals.
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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) | 1999-01-22 | 1999-07-24 | 2000-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-01-22 | 2003-07-24 | 2004-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-01-22 | 2007-07-24 | 2008-01-23 | $7700.00 | Window Closed / Lapsed |