US6160799A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for pilot set maintenance
Assignee: Google Technology Holdings LLC
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Filing: 1996-09-06
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Granted: 2000-12-12
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Expires: 2016-09-06
Abstract
Abstract An apparatus (100) maintains a Pilot Set in a digital communication system that utilizes Code Division Multiple Access. The apparatus comprises a logic and control circuit (113) for providing instructions to a searcher receiver (109). The searcher receiver, in response to the instructions, sequentially scans active pilots, then candidate pilots, and then pre-candidate pilots. The scan of the pre-candidate pilots continues until all but a predetermined number of pre-candidate pilots have been promoted or demoted. Then the searcher receiver alternately scans the predetermined number of pre-candidate pilots and the neighbor pilots. The searcher receiver terminates alternate scans of the predetermined number of pre-candidate pilots and the neighbor pilots when a one of the neighbor pilots is promoted, and resumes the scan of the pre-candidate pilots.
Inventors
- 👤 David J. Krause
- 👤 Brian D. Storm
- 👤 William F. Taranowski
- 👤 Michael A. Eberhardt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:39
CPC Classifications
H; H04; H04W; H04W36/00; H04W36/16; H04W36/18; H04W48/00; H04W48/16
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
112 words
A method of maintaining a Pilot Set in a digital communication system that utilizes Code Division Multiple Access, the Pilot Set including an Active Set of active pilots, a Candidate Set of candidate pilots, a Pre-candidate Set of pre-candidate pilots, and a Neighbor Set of neighbor pilots, the method comprising the steps of: scanning the entire Active Set of active pilots; scanning the entire Candidate Set of candidate pilots after scanning the entire Active Set; and scanning the pre-candidate pilots without intervening scans of the active pilots or candidate pilots until all but a predetermined number of pre-candidate pilots have been promoted to the Candidate Set or demoted to the Neighbor Set.
Claim 2
Independent Claim
112 words
A method of maintaining a Pilot Set in a digital communication system that utilizes Code Division Multiple Access, the Pilot Set including an Active Set of active pilots, a Candidate Set of candidate pilots, a Pre-candidate Set of pre-candidate pilots, and a Neighbor Set of neighbor pilots, the method comprising the steps of: scanning the entire Active Set of active pilots; scanning the entire Candidate Set of candidate pilots after scanning the entire Active Set; and scanning the pre-candidate pilots without intervening scans of the active pilots or candidate pilots until all but a predetermined number of pre-candidate pilots have been promoted to the Candidate Set or demoted to the Neighbor Set.
Claim 3
Dependent Claim
22 words
The method of claim 1 further comprising the step of alternately scanning the predetermined number of pre-candidate pilots and the neighbor pilots.
Claim 4
Dependent Claim
31 words
The method of claim 2, wherein the predetermined number of pre-candidate pilots and the neighbor pilots are alternately scanned until one of the neighbor pilots is promoted to the Pre-candidate Set.
Claim 5
Dependent Claim
50 words
The method of claim 3, wherein the step of scanning the pre-candidate pilots until all but a predetermined number of pre-candidate pilots have been promoted to the Candidate Set or demoted to the Neighbor Set is repeated when a one of the neighbor pilots is promoted to the Pre-Candidate Set.
Claim 6
Dependent Claim
41 words
The method of claim 2, wherein the predetermined number of pre-candidate pilots and the neighbor pilots are alternately scanned until a one of the predetermined number of pre-candidate pilots is promoted to the Candidate Set or demoted to the Neighbor Set.
Claim 7
Dependent Claim
59 words
The method of claim 5 further comprising the step of scanning the neighbor pilots until a one of the neighbor pilots is promoted to the Pre-candidate Set or all of the neighbor pilots have been scanned, when the one of the predetermined number of pre-candidate pilots has been promoted to the Candidate Set or demoted to the Neighbor Set.
Claim 8
Dependent Claim
33 words
The method of claim 6, wherein the step of alternately scanning the predetermined number of pre-candidate pilots and the neighbor pilots is repeated when the one of the neighbor pilots has been promoted.
Claim 9
Dependent Claim
36 words
The method of claim 6, the Pilot Set further includes a Remaining Set of remaining pilots, the method further comprises the step of scanning a remaining pilot when all of the neighbor pilots have been scanned.
Claim 10
Dependent Claim
49 words
The method of claim 8, wherein the step of scanning the neighbor pilots until a one of the neighbor pilots is promoted to the Pre-candidate Set or all of the neighbor pilots have been scanned is repeated when the remaining pilot has not been promoted to the Pre-candidate Set.
Claim 11
Dependent Claim
34 words
The method of claim 7, wherein the step of alternately scanning the predetermined number of pre-candidate pilots and the neighbor pilots is repeated when the remaining pilot has been promoted to the Pre-candidate Set.
Claim 12
Dependent Claim
28 words
The method of claim 2 wherein the predetermined number of pre-candidate pilots and the neighbor pilots are alternately scanned until all of the neighbor pilots have been scanned.
Claim 13
Dependent Claim
36 words
The method of claim 11, the Pilot Set further includes a Remaining Set of remaining pilots, the method further comprises the step of scanning a remaining pilot when all of the neighbor pilots have been scanned.
Claim 14
Dependent Claim
47 words
The method of claim 12, wherein the step of scanning the pre-candidate pilots until all but predetermined number of pre-candidate pilots have been promoted to the Candidate Set or demoted to the Neighbor Set is repeated when the remaining pilot has been promoted to the Pre-candidate Set.
Claim 15
Dependent Claim
37 words
The method of claim 12, wherein the step of step of alternately scanning the predetermined number of pre-candidate pilots and the neighbor pilots is repeated when the remaining pilot has not been promoted to the Pre-candidate Set.
Claim 16
Independent Claim
119 words
A method of maintaining a Pilot Set in a digital communication system that utilizes Code Division Multiple Access, the Pilot Set including an Active Set of active pilots, a Candidate Set of candidate pilots, a Pre-candidate Set of pre-candidate pilots, and a Neighbor Set of neighbor pilots, the method comprising the steps of: (a) scanning the entire Active Set; (b) scanning the entire Candidate Set after scanning the entire Active Set; (c) scanning at least a subset of the Pre-candidate Set and the Neighbor Set without intervening scans of the Active Set or the Candidate Set after scanning the entire Candidate Set, until an initiation event occurs; and (d) repeating steps (a) through (c) when the initiation event occurs.
Claim 17
Independent Claim
119 words
A method of maintaining a Pilot Set in a digital communication system that utilizes Code Division Multiple Access, the Pilot Set including an Active Set of active pilots, a Candidate Set of candidate pilots, a Pre-candidate Set of pre-candidate pilots, and a Neighbor Set of neighbor pilots, the method comprising the steps of: (a) scanning the entire Active Set; (b) scanning the entire Candidate Set after scanning the entire Active Set; (c) scanning at least a subset of the Pre-candidate Set and the Neighbor Set without intervening scans of the Active Set or the Candidate Set after scanning the entire Candidate Set, until an initiation event occurs; and (d) repeating steps (a) through (c) when the initiation event occurs.
Claim 18
Dependent Claim
39 words
The method of claim 15, wherein step (c) further comprises the substep of scanning the Pre-candidate Set until all but a predetermined number of pre-candidate pilots have been promoted to the Candidate Set or demoted to the Neighbor Set.
Claim 19
Dependent Claim
25 words
The method of claim 16, wherein step (c) further comprises the substep of alternately scanning the predetermined number of pre-candidate pilots and the neighbor pilots.
Claim 20
Dependent Claim
23 words
The method of claim 15, wherein the initiation event is the expiration of a predetermined time duration that commences upon initiating step (a).
Claim 21
Independent Claim
129 words
An apparatus for maintaining a Pilot Set in a digital communication system that utilizes Code Division Multiple Access, the Pilot Set including an Active Set of active pilots, a Candidate Set of candidate pilots, a Pre-candidate Set of pre-candidate pilots, and a Neighbor Set of neighbor pilots, the apparatus comprising: a logic and control circuit for providing instructions; and a searcher receiver, responsive to the instructions, to sequentially scan the entire Active Set of active pilots, then the entire Candidate Set of candidate pilots, and then the pre-candidate pilots without intervening scans of the Active Set or Candidate Set, wherein the scan of the pre-candidate pilots continues until all but a predetermined number of pre-candidate pilots have been promoted to the Candidate Set or demoted to the Neighbor Set.
Claim 22
Independent Claim
129 words
An apparatus for maintaining a Pilot Set in a digital communication system that utilizes Code Division Multiple Access, the Pilot Set including an Active Set of active pilots, a Candidate Set of candidate pilots, a Pre-candidate Set of pre-candidate pilots, and a Neighbor Set of neighbor pilots, the apparatus comprising: a logic and control circuit for providing instructions; and a searcher receiver, responsive to the instructions, to sequentially scan the entire Active Set of active pilots, then the entire Candidate Set of candidate pilots, and then the pre-candidate pilots without intervening scans of the Active Set or Candidate Set, wherein the scan of the pre-candidate pilots continues until all but a predetermined number of pre-candidate pilots have been promoted to the Candidate Set or demoted to the Neighbor Set.
Claim 23
Dependent Claim
21 words
The apparatus of claim 19, wherein the searcher receiver alternately scans the predetermined number of pre-candidate pilots and the neighbor pilots.
Claim 24
Dependent Claim
44 words
The apparatus of claim 20, wherein the searcher receiver terminates alternate scans of the predetermined number of pre-candidate pilots and the neighbor pilots when a one of the neighbor pilots is promoted to the Pre-candidate Set, and resumes the scan of the pre-candidate pilots.
References Cited (Backward Citations)
US5101501A
Cited
US5109390A
Cited
US5267261A
Cited
US5392287A
Cited
US5509015A
Cited
US5490165A
Cited
WO1996016524A2
Cited
US5577022A
Cited
US5680395A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-12-12 | 2004-06-12 | 2004-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-12-12 | 2008-06-12 | 2008-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-12-12 | 2012-06-12 | 2012-12-12 | $7700.00 | Window Closed / Lapsed |