US6134444A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for balancing uplink and downlink transmissions in a communication system
Assignee: Motorola Solutions Inc
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Filing: 1998-03-30
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Granted: 2000-10-17
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Expires: 2018-03-30
Abstract
Abstract A method and apparatus for balancing uplink and downlink signal transmissions in a code-division multiple access (CDMA) communication system (100) is disclosed. In the preferred embodiment, a system level change is performed (303) and parameters related to the uplink (107) and downlink (108) transmissions are analyzed (306). The uplink (107) and downlink (108) transmissions are balanced (309) by, inter alia, increasing or decreasing the downlink transmission power at a base-station (101, 106), systematically adding loss or noise to a receiver located at a base-station (101, 106) or both.
Inventors
- 👤 Michael D. Kotzin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:53
CPC Classifications
H; H04; H04W; H04W36/00; H04W36/16; H04W36/18; H04W36/24; H04W36/30; H04W36/302; H04W52/00; H04W52/04; H04W52/38; H04W52/40
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
72 words
A method of controlling a mobile station in soft handoff with a plurality of base-stations, the method comprising the steps of: determining, based on a measurement of a downlink transmission pilot signal, that the soft handoff condition should be terminated; determining that a reception benefit to uplink transmission due to the soft handoff is being realized; and suspending termination of the soft handoff until the reception benefit to the uplink transmission disappears.
Claim 2
Independent Claim
72 words
A method of controlling a mobile station in soft handoff with a plurality of base-stations, the method comprising the steps of: determining, based on a measurement of a downlink transmission pilot signal, that the soft handoff condition should be terminated; determining that a reception benefit to uplink transmission due to the soft handoff is being realized; and suspending termination of the soft handoff until the reception benefit to the uplink transmission disappears.
Claim 3
Dependent Claim
45 words
The method of claim 1, wherein the step of determining that the reception benefit is being realized comprises the step of determining that first and second base-stations in soft handoff with the mobile station are receiving the uplink transmission from the mobile station equally well.
Claim 4
Dependent Claim
75 words
Apparatus for controlling a mobile station in soft handoff with a plurality of base stations, the apparatus comprising: means for determining, based on a measurement of a downlink transmission pilot signal, that the soft handoff condition should be terminated; means for determining that a reception benefit to uplink transmission due to the soft handoff is being realized; and means for suspending termination of the soft handoff until the reception benefit to the uplink transmission disappears.
Claim 5
Dependent Claim
75 words
Apparatus for controlling a mobile station in soft handoff with a plurality of base stations, the apparatus comprising: means for determining, based on a measurement of a downlink transmission pilot signal, that the soft handoff condition should be terminated; means for determining that a reception benefit to uplink transmission due to the soft handoff is being realized; and means for suspending termination of the soft handoff until the reception benefit to the uplink transmission disappears.
Claim 6
Dependent Claim
45 words
The apparatus of claim 3, wherein the means for determining that a reception benefit is being realized comprises a means for determining that first and second base-stations in soft handoff with the mobile station are receiving the uplink transmission from the mobile station equally well.
References Cited (Backward Citations)
US5309503A
Cited
US6009328A
Cited
US5548812A
Cited
US5475870A
Cited
US5574974A
Cited
US5884187A
Cited
US5960353A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-10-17 | 2004-04-17 | 2004-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-10-17 | 2008-04-17 | 2008-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-10-17 | 2012-04-17 | 2012-10-17 | $7700.00 | Window Closed / Lapsed |