US5887252A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multicast transmission for DS-CDMA cellular telephones
Assignee: Nokia Technologies Oy
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Filing: 1996-09-10
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Granted: 1999-03-23
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Expires: 2016-09-10
Abstract
Abstract Multicast transmission for DS-CDMA cellular communication wherein a mobile station requests a multicast service by use of a service option and a base station transmits to the mobile station a long code mask and code channel needed to receive the multicast service. No reverse channel is used so that an unlimited number of terminals may receive the multicast service.
Inventors
- 👤 John Noneman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:36
CPC Classifications
H; H04; H04W; H04W52/00; H04W52/02; H04W52/0209; H04W76/00; H04W76/10; H04W4/00; H04W4/06; H04W72/00; H04W72/30
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
66 words
A method of multicast transmission from a base station to a mobile station comprising the steps of: originating a call; transmitting multicast service parameters to the mobile station, the multicast service parameters comprising a code channel and a long code mask; transmitting data from the base station using the multicast service parameters; and receiving in the mobile station the multicast transmission using the multicast service parameters.
Claim 2
Independent Claim
66 words
A method of multicast transmission from a base station to a mobile station comprising the steps of: originating a call; transmitting multicast service parameters to the mobile station, the multicast service parameters comprising a code channel and a long code mask; transmitting data from the base station using the multicast service parameters; and receiving in the mobile station the multicast transmission using the multicast service parameters.
Claim 3
Dependent Claim
27 words
The method of claim 1 wherein the step of originating a call comprises the further step in which a multicast service is requested by the mobile station.
Claim 4
Dependent Claim
32 words
The method of claim 1 wherein the step of originating a call comprises a step in which the multicast service is determined in the base station and communicated to the mobile station.
Claim 5
Dependent Claim
25 words
The method of claim 1 comprising the further step of displaying the information contained in the multicast transmission on a display of the mobile station.
Claim 6
Dependent Claim
26 words
The method of claim 1 comprising the further step of communicating the information contained in the multicast transmission to a device external to the mobile station.
Claim 7
Dependent Claim
19 words
The method of claim 1 comprising the further step of inhibiting reverse link signal transmission from the mobile station.
Claim 8
Independent Claim
53 words
A method of multicast transmission from a base station to a mobile station comprising the steps of: originating a call; transmitting multicast service parameters to the mobile station, the multicast service parameters comprising a spreading code and a long code mask; and transmitting data from the base station using the multicast service parameters.
Claim 9
Independent Claim
53 words
A method of multicast transmission from a base station to a mobile station comprising the steps of: originating a call; transmitting multicast service parameters to the mobile station, the multicast service parameters comprising a spreading code and a long code mask; and transmitting data from the base station using the multicast service parameters.
Claim 10
Independent Claim
67 words
A method of multicast transmission from a base station to a mobile station comprising the steps of: originating a call wherein a multicast service is requested; receiving multicast service parameters in the mobile station, the multicast service parameters comprising a spreading code and a scrambling code; and receiving in the mobile station the data transmitted by the base station, the mobile station using the multicast service parameters.
Claim 11
Independent Claim
67 words
A method of multicast transmission from a base station to a mobile station comprising the steps of: originating a call wherein a multicast service is requested; receiving multicast service parameters in the mobile station, the multicast service parameters comprising a spreading code and a scrambling code; and receiving in the mobile station the data transmitted by the base station, the mobile station using the multicast service parameters.
Claim 12
Dependent Claim
67 words
A cellular telephone mobile station for receiving a multicast transmission comprising: means for originating a cellular telephone call; means for receiving multicast parameters transmitted by a base station, the multicast parameters comprising a spreading code and a scrambling code; and receiving means adapted to accept said multicast parameters; said receiving means further adapted to receive a multicast signal transmitted by said base station using said multicast parameters.
Claim 13
Dependent Claim
67 words
A cellular telephone mobile station for receiving a multicast transmission comprising: means for originating a cellular telephone call; means for receiving multicast parameters transmitted by a base station, the multicast parameters comprising a spreading code and a scrambling code; and receiving means adapted to accept said multicast parameters; said receiving means further adapted to receive a multicast signal transmitted by said base station using said multicast parameters.
Claim 14
Dependent Claim
49 words
A cellular telephone base station for transmitting a multicast transmission comprising: means for originating a cellular telephone call; means for transmitting multicast parameters to a mobile station, the multicast parameters comprising a spreading code and a scrambling code; and means for transmitting a multicast signal using said multicast parameters.
Claim 15
Dependent Claim
49 words
A cellular telephone base station for transmitting a multicast transmission comprising: means for originating a cellular telephone call; means for transmitting multicast parameters to a mobile station, the multicast parameters comprising a spreading code and a scrambling code; and means for transmitting a multicast signal using said multicast parameters.
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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) | 2002-03-22 | 2002-09-21 | 2003-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-03-22 | 2006-09-21 | 2007-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-03-22 | 2010-09-21 | 2011-03-23 | $7700.00 | Window Closed / Lapsed |