US6285668B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for improving the selection capability of a TSB in CDMA and PCS systems
Assignee: Samsung Electronics Co Ltd
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Filing: 1998-06-15
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Granted: 2001-09-04
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Expires: 2018-06-15
Abstract
Abstract The present invention provides an enhanced method for initiating the selection of frames arriving from multiple base stations in a mobile communications system during a soft handoff condition. The method includes the steps of determining a number of base stations in an active set; receiving and storing a plurality of frames from those base stations in the active set where each frame is associated with a frame sequence. The method further includes the step of initiating selection of one of a plurality of received frames of a sequence upon satisfaction of at least one of a plurality of selection criteria which are based upon the active set and the received frames. Preferably, selection is performed immediately upon satisfaction of at least one selection criterion which includes: consecutively receiving all frames in a current sequence from the active set; receiving a frame from a sequence having a sequence number greater than a sequence number of a previously selected frame by a predetermined value; and consecutively receiving all frames in a delayed sequence from the active set prior to receiving all frames in a current sequence from the base stations.
Inventors
- 👤 Mi Jung Kang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:21
CPC Classifications
H; H04; H04W; H04W36/00; H04W36/02; H04W36/16; H04W36/18
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
122 words
A method for use in a base station controller of a mobile communications system for initiating the selection of one of a plurality of received frames during a handoff state comprising the steps of: determining a number of base stations in an active set; receiving and storing a plurality of frames from said base stations in said active set, each said frame being associated with a first sequence; and initiating a selection of one of the plurality of received frames associated with the first sequence, said selection being initiated upon satisfaction of one of a number of selection initiating criteria, each selection initiating criteria being a function of the order of receipt of the plurality of frames associated with the first sequence.
Claim 2
Independent Claim
122 words
A method for use in a base station controller of a mobile communications system for initiating the selection of one of a plurality of received frames during a handoff state comprising the steps of: determining a number of base stations in an active set; receiving and storing a plurality of frames from said base stations in said active set, each said frame being associated with a first sequence; and initiating a selection of one of the plurality of received frames associated with the first sequence, said selection being initiated upon satisfaction of one of a number of selection initiating criteria, each selection initiating criteria being a function of the order of receipt of the plurality of frames associated with the first sequence.
Claim 3
Dependent Claim
111 words
The method for initiating the selection of one of a plurality of received frames as defined by claim 1 , wherein said number of selection initiating criteria include: a. consecutive receipt of all frames associated with the first sequence from said active set; b. receipt of a frame associated with a sequence subsequent to the first sequence, wherein the subsequent sequence has a sequence number that exceeds a sequence number associated with a previously selected frame by a predetermined value; and c. consecutive receipt of all frames associated with a subsequent sequence from said base stations prior to receipt of all frames associated with the first sequence from said base stations.
Claim 4
Dependent Claim
28 words
The method for initiating the selection of one of a plurality of received frames as defined by claim 2 , wherein said predetermined value is equal to three.
Claim 5
Dependent Claim
29 words
The method for initiating the selection of one of a plurality of received frames as defined by claim 1 , wherein the mobile communications system is a CDMA system.
Claim 6
Dependent Claim
35 words
The method for initiating the selection of one of a plurality of received frames as defined by claim 1 , wherein said selection is performed immediately upon satisfaction of any one of said selection criteria.
Claim 7
Dependent Claim
47 words
The method for initiating the selection of one of a plurality of received frames as defined by claim 1 , wherein said number of base stations in said active set is adjusted as base stations are added and dropped from said active set during a handoff condition.
Claim 8
Dependent Claim
119 words
A mobile communications system of a base station controller providing enhanced selection of one of a plurality of received frames during a handoff state comprising: means for determining a number of base stations in an active set; means for receiving and storing a plurality of frames from said base stations in said active set, each said frame being associated with a first sequence; and means for initiating a selection of one of the plurality of received frames associated with the first sequence, said selection being initiated upon satisfaction of one of a number of selection initiating criteria, each selection initiating criteria being a function of the order of receipt of the plurality of frames associated with the first sequence.
Claim 9
Dependent Claim
119 words
A mobile communications system of a base station controller providing enhanced selection of one of a plurality of received frames during a handoff state comprising: means for determining a number of base stations in an active set; means for receiving and storing a plurality of frames from said base stations in said active set, each said frame being associated with a first sequence; and means for initiating a selection of one of the plurality of received frames associated with the first sequence, said selection being initiated upon satisfaction of one of a number of selection initiating criteria, each selection initiating criteria being a function of the order of receipt of the plurality of frames associated with the first sequence.
Claim 10
Dependent Claim
101 words
A mobile communications system as defined by claim 7 , wherein said number of selection initiating criteria includes: a. consecutive receipt of all frames associated with the first sequence from said active set; b. receipt of a frame associated with a sequence subsequent to the first sequence, wherein the subsequent sequence has a sequence number that exceeds a sequence number associated with a previously selected frame by a predetermined value; and c. consecutive receipt of all frames associated with a subsequent sequence from said base stations prior to receipt of all frames associated with the first sequence from said base stations.
Claim 11
Dependent Claim
23 words
A mobile communications system as defined by claim 8 , wherein selection is performed immediately upon satisfaction of one of said selection criteria.
Claim 12
Dependent Claim
18 words
A mobile communications system as defined by claim 8 , wherein said predetermined value is equal to three.
Claim 13
Dependent Claim
19 words
A mobile communications system as defined by claim 7 , wherein said mobile communications system is a CDMA system.
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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) | 2004-09-03 | 2005-03-05 | 2005-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-09-03 | 2009-03-05 | 2009-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-09-03 | 2013-03-05 | 2013-09-04 | $7700.00 | Window Closed / Lapsed |