US6341124B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Accommodating packet data loss at base stations interfacing between a packet switched network and a CDMA macrodiversity network
Assignee: Telefonaktiebolaget LM Ericsson AB
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Filing: 1998-03-13
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Granted: 2002-01-22
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Expires: 2018-03-13
Abstract
Abstract A plurality of base stations are operated in CDMA macrodiversity mode to communicate a message to a mobile station via an air interface. If the message is successfully communicated to one of the base stations via a packet network, the base station communicates the message to the mobile station via the air interface using CDMA. Otherwise, the base station refrains from communicating any message to the mobile station.
Inventors
- 👤 Lars B. Johansson
- 👤 Paul Peter Butovitsch
- 👤 Tomas Sandin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:42
CPC Classifications
H; H04; H04W; H04W28/00; H04W28/02; H04W28/04; H04B; H04B7/00; H04B7/02; H04B7/022; H04W36/00; H04W36/16; H04W36/18; H04W88/00; H04W88/08
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
134 words
A method of operating a plurality of base stations in Code Division Multiple Access macrodiversity mode to communicate a message to a mobile station via an air interface, comprising: attempting to communicate the message to the base stations via a packet network; determining, at one of the base stations, whether the message is corrupted after the attempted communication from packet network to the one base station; if the message is not successfully communicated by the packet network to one of the base stations, refraining from communicating any message from the one base station to the mobile station; and if the message is successfully communicated by the packet network to the one base station, communicating the message from the one base station to the mobile station via the air interface using Code Division Multiple Access.
Claim 2
Independent Claim
134 words
A method of operating a plurality of base stations in Code Division Multiple Access macrodiversity mode to communicate a message to a mobile station via an air interface, comprising: attempting to communicate the message to the base stations via a packet network; determining, at one of the base stations, whether the message is corrupted after the attempted communication from packet network to the one base station; if the message is not successfully communicated by the packet network to one of the base stations, refraining from communicating any message from the one base station to the mobile station; and if the message is successfully communicated by the packet network to the one base station, communicating the message from the one base station to the mobile station via the air interface using Code Division Multiple Access.
Claim 3
Dependent Claim
25 words
The method of claim 1 , including, for each base station, determining whether a message from the packet network was received by the base station.
Claim 4
Dependent Claim
44 words
The method of claim 1 , including, if the message was not successfully communicated via the packet network to the one base station, communicating synchronization information from the one base station to the mobile station via the air interface using Code Division Multiple Access.
Claim 5
Dependent Claim
46 words
The method of claim 1 , including, if the message was not successfully communicated via the packet network to the one base station, communicating transmission power management information from the one base station to the mobile station via the air interface using Code Division Multiple Access.
Claim 6
Dependent Claim
16 words
The method of claim 1 , wherein the packet network is an Asynchronous Transfer Mode network.
Claim 7
Independent Claim
139 words
A method of operating a plurality of base stations in Code Division Multiple Access macrodiversity mode to communicate a message to a mobile station via an air interface, comprising: attempting to communicate the message to the base stations via a packet switched network; for each base station, determining, at each said base station, whether the message was successfully communicated to and received in an uncorrupted manner by the base station via the packet network; for each base station to which the message was successfully communicated via the packet network, communicating the message from the base station to the mobile station via the air interface using Code Division Multiple Access; and for each base station to which the message was not successfully communicated via the packet network, refraining from communicating any message from the base station to the mobile station.
Claim 8
Independent Claim
139 words
A method of operating a plurality of base stations in Code Division Multiple Access macrodiversity mode to communicate a message to a mobile station via an air interface, comprising: attempting to communicate the message to the base stations via a packet switched network; for each base station, determining, at each said base station, whether the message was successfully communicated to and received in an uncorrupted manner by the base station via the packet network; for each base station to which the message was successfully communicated via the packet network, communicating the message from the base station to the mobile station via the air interface using Code Division Multiple Access; and for each base station to which the message was not successfully communicated via the packet network, refraining from communicating any message from the base station to the mobile station.
Claim 9
Dependent Claim
43 words
The method of claim 6 , including, for each base station to which the message was not successfully communicated via the packet network, communicating synchronization information from the base station to the mobile station via the air interface using Code Division Multiple Access.
Claim 10
Dependent Claim
45 words
The method of claim 6 , including, for each base station to which the message was not successfully communicated via the packet network, communicating transmission power management information from the base station to the mobile station via the air interface using Code Division Multiple Access.
Claim 11
Dependent Claim
16 words
The method of claim 6 , wherein the packet network is an Asynchronous Transfer Mode network.
Claim 12
Independent Claim
224 words
A method of using Code Division Multiple Access macrodiversity mode to perform a soft handover of a mobile station between a first and a second base stations, comprising: attempting to communicate a message to the first and second base stations via a packet network; determining at the first base station whether the communicated message is corrupted after communication from the packet network to said first base station; and if the message is successfully communicated by the packet network to the first base station, communicating the message from the first base station to the mobile station via the air interface using Code Division Multiple Access; if the message is not successfully communicated by the packet network to the first base station, refraining from communicating any message from the first base station to the mobile station; determining at said second base station whether the communicated message is corrupted after communication from the packet network to said second base station; if the message is successfully communicated by the packet network to the second base station, communicating the message from the second base station to the mobile station via the air interface using Code Division Multiple Access; and if the message is not successfully communicated by the packet network to the second base station, refraining from communicating any message from the second base station to the mobile station.
Claim 13
Independent Claim
224 words
A method of using Code Division Multiple Access macrodiversity mode to perform a soft handover of a mobile station between a first and a second base stations, comprising: attempting to communicate a message to the first and second base stations via a packet network; determining at the first base station whether the communicated message is corrupted after communication from the packet network to said first base station; and if the message is successfully communicated by the packet network to the first base station, communicating the message from the first base station to the mobile station via the air interface using Code Division Multiple Access; if the message is not successfully communicated by the packet network to the first base station, refraining from communicating any message from the first base station to the mobile station; determining at said second base station whether the communicated message is corrupted after communication from the packet network to said second base station; if the message is successfully communicated by the packet network to the second base station, communicating the message from the second base station to the mobile station via the air interface using Code Division Multiple Access; and if the message is not successfully communicated by the packet network to the second base station, refraining from communicating any message from the second base station to the mobile station.
Claim 14
Dependent Claim
44 words
The method of claim 10 , including, if the message was not successfully communicated via the packet network to the second base station, communicating synchronization information from the second base station to the mobile station via the air interface using Code Division Multiple Access.
Claim 15
Dependent Claim
46 words
The method of claim 10 , including, if the message was not successfully communicated via the packet network to the second base station, communicating power transmission management information from the second base station to the mobile station via the air interface using Code Division Multiple Access.
Claim 16
Dependent Claim
16 words
The method of claim 10 , wherein the packet network is an Asynchronous Transfer Mode network.
Claim 17
Dependent Claim
15 words
The method of claim 10 , wherein the packet network is a frame relay network.
Claim 18
Dependent Claim
15 words
The method of claim 1 , wherein the packet network is a frame relay network.
Claim 19
Dependent Claim
15 words
The method of claim 6 , wherein the packet network is a frame relay network.
Claim 20
Dependent Claim
100 words
The method of claim 1 , including, if the message was not successively communicated via the packet network to the one base station, using a control portion of a Code Division Multiple Access frame to communicate control information from the one base station to the mobile station via the air interface, and thereafter determining at the mobile station that the one base station has communicated control information but not message information to the mobile station, including comparing at the mobile station the respective signal-to-noise ratios of the control portion and a message portion of the Code Division Multiple Access frame.
Claim 21
Dependent Claim
98 words
The method of claim 6 , including, for each base station to which the message was not successively communicated via the packet network, using a control portion of a Code Division Multiple Access frame to communicate control information from the base station to the mobile station via the air interface, and thereafter determining at the mobile station that the base station has communicated control information but not message information to the mobile station, including comparing at the mobile station the respective signal-to-noise ratios of the control portion and a message portion of the Code Division Multiple Access frame.
Claim 22
Dependent Claim
100 words
The method of claim 10 , including, if the message was not successively communicated via the packet network to the second base station, using a control portion of a Code Division Multiple Access frame to communicate control information from the second base station to the mobile station via the air interface, and thereafter determining at the mobile station that the second base station has communicated control information but not message information to the mobile station, including comparing at the mobile station the respective signal-to-noise ratios of the control portion and a message portion of the Code Division Multiple Access frame.
References Cited (Backward Citations)
US5097484A
Cited
US5481561A
Cited
US5369801A
Cited
US5507035A
Cited
US5828659A
Cited
US5722074A
Cited
US5586113A
Cited
US5537411A
Cited
WO1995032594A1
Cited
US5646937A
Cited
US5586119A
Cited
US5673259A
Cited
US6181683B1
Cited
US5878045A
Cited
US6072790A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2005-01-21 | 2005-07-23 | 2006-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-01-21 | 2009-07-23 | 2010-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-01-21 | 2013-07-23 | 2014-01-22 | $7700.00 | Window Closed / Lapsed |