US6442384B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
System and method for identification of uplink/downlink interference sources
Assignee: Ericsson Inc
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Filing: 1999-10-22
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Granted: 2002-08-27
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Expires: 2019-10-22
Abstract
Abstract A system and method of identifying the source of uplink and downlink interference in a disturbed cell of a wireless telecommunications network. Initially, call events occurring in offending cells are recorded. In conjunction, the disturbance events occurring in the disturbed cell of the telecommunications network are recorded. The recorded call events with recorded disturbance events are then correlated. A distribution of disturbed and offending cells within the telecommunications network as a function of time is computed to obtain a statistical correlation of call events in offending cells and subsequent disturbances resulting in the disturbed cell to identify the possible source of disturbances that caused the sealing of the sealed device with in the disturbed cell.
Inventors
- 👤 Ali R. Shah
- 👤 Hossam H'mimy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:01
CPC Classifications
H; H04; H04W; H04W24/00
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
123 words
In a telecommunications network including one disturbed cell containing at least one sealed device and a plurality of offending cells, a method of identifying the source of interference in the disturbed cell comprising the steps of: recording call events occurring in offending cells of the telecommunications network; recording disturbance events occurring in the disturbed cell of the telecommunications network; correlating recorded call events with recorded disturbance events; and computing a distribution of disturbed and offending cells within the telecommunications network as a function of time to obtain a statistical correlation of call events in offending cells and subsequent disturbances resulting in said disturbed cell to identify the possible source of disturbances that caused the sealing of the sealed device within the disturbed cell.
Claim 2
Dependent Claim
123 words
In a telecommunications network including one disturbed cell containing at least one sealed device and a plurality of offending cells, a method of identifying the source of interference in the disturbed cell comprising the steps of: recording call events occurring in offending cells of the telecommunications network; recording disturbance events occurring in the disturbed cell of the telecommunications network; correlating recorded call events with recorded disturbance events; and computing a distribution of disturbed and offending cells within the telecommunications network as a function of time to obtain a statistical correlation of call events in offending cells and subsequent disturbances resulting in said disturbed cell to identify the possible source of disturbances that caused the sealing of the sealed device within the disturbed cell.
Claim 3
Dependent Claim
33 words
The method according to claim 1 wherein said steps of recording call events occurring in offending cells and recording disturbance events occurring in the disturbed cell are run in conjunction with each other.
Claim 4
Dependent Claim
17 words
The method according to claim 1 wherein said correlating step is performed as a function of time.
Claim 5
Dependent Claim
34 words
The method according to claim 1 wherein said correlating step is followed by a counting step, said counting step comprising the step of identifying the number of disturbance events associated with the disturbed cell.
Claim 6
Dependent Claim
27 words
The method according to claim 4 wherein said counting step is performed within a delta time once a call event ends causing the disturbance events to end.
Claim 7
Dependent Claim
46 words
The method according to claim 1 wherein said correlating step is followed by the step of attempting (voice channel seizure events) for possible adjacent channel (or adjacent channel) mobiles in Call Event Recordings (CER), said attempting step performed by the time stamps of the call start.
Claim 8
Dependent Claim
25 words
The method according to claim 1 further comprising the step of verifying said disturbance events, said verifying step performed using free space path loss considerations.
Claim 9
Dependent Claim
43 words
The method according to claim 7 wherein said verifying step further comprises the step of excluding from further analysis all adjacent channel cells for which calculated signal attenuation indicates that they are too far away to be able to generate perceived disturbance events.
Claim 10
Dependent Claim
21 words
The method according to claim 1 further comprising the step of identifying internal sources of interference on the downlink using reciprocity.
Claim 11
Dependent Claim
44 words
The method according to claim 9 wherein said identifying step is followed by the step of disturbing the mobiles of the offending cells on the downlink if the mobiles of the offending cells create interference on the uplink for the disturbed cell via reciprocity.
Claim 12
Dependent Claim
133 words
In a telecommunications network including one disturbed cell containing at least one sealed device and a plurality of offending cells, a system for identifying the source of uplink interference in the disturbed cell comprising: a means for recording call events occurring in offending cells of the telecommunications network; a means for recording disturbance events occurring in the disturbed cell of the telecommunications network; a means for correlating recorded call events with recorded disturbance events; and a means for computing a distribution of disturbed and offending cells within the telecommunications network as a function of time to obtain a statistical correlation of call events in offending cells and subsequent disturbances resulting in said disturbed cell to identify the possible source of disturbances that caused the sealing of the sealed device within the disturbed cell.
Claim 13
Dependent Claim
133 words
In a telecommunications network including one disturbed cell containing at least one sealed device and a plurality of offending cells, a system for identifying the source of uplink interference in the disturbed cell comprising: a means for recording call events occurring in offending cells of the telecommunications network; a means for recording disturbance events occurring in the disturbed cell of the telecommunications network; a means for correlating recorded call events with recorded disturbance events; and a means for computing a distribution of disturbed and offending cells within the telecommunications network as a function of time to obtain a statistical correlation of call events in offending cells and subsequent disturbances resulting in said disturbed cell to identify the possible source of disturbances that caused the sealing of the sealed device within the disturbed cell.
Claim 14
Dependent Claim
38 words
The system according to claim 11 wherein said means for recording call events occurring in offending cells and said means for recording disturbance events occurring in the disturbed cell are configured to run in conjunction with each other.
Claim 15
Dependent Claim
20 words
The system according to claim 11 wherein said means for correlating is configured to execute as a function of time.
Claim 16
Dependent Claim
30 words
The system according to claim 11 wherein said means for correlating further includes a means for counting adapted to identify the number of disturbance events associated with the disturbed cell.
Claim 17
Dependent Claim
30 words
The system according to claim 14 wherein said means for counting is configured to execute within a delta time once a call event ends causing the disturbance events to end.
Claim 18
Dependent Claim
48 words
The system according to claim 11 wherein said means for correlating further comprises a means for attempting (voice channel seizure events) for possible adjacent channel (or adjacent channel) mobiles in Call Event Recordings (CER), said means for attempting configured to execute via time stamps of the call start.
Claim 19
Dependent Claim
28 words
The system according to claim 11 further comprising a means for verifying said disturbance events, said means for verifying configured to perform using free space path loss considerations.
Claim 20
Dependent Claim
44 words
The system according to claim 17 wherein said means for verifying further comprises a means for excluding from further analysis all adjacent channel cells for which calculated signal attenuation indicates that they are too far away to be able to generate perceived disturbance events.
Claim 21
Dependent Claim
21 words
The system according to claim 11 further comprising a means for identifying internal sources of interference on the downlink using reciprocity.
Claim 22
Dependent Claim
44 words
The system according to claim 19 wherein said means for identifying further includes a means for disturbing the mobiles of the offending cells on the downlink if the mobiles of the offending cells create interference on the uplink for the disturbed cells via reciprocity.
Claim 23
Dependent Claim
150 words
In a telecommunications network including one disturbed cell containing at least one sealed device and a plurality of offending cells, a program product for identifying the source of uplink interference in the disturbed cell comprising: instruction means residing in a computer for recording call events occurring in offending cells of the telecommunications network; instruction means residing in a computer for recording disturbance events occurring in the disturbed cell of the telecommunications network; instruction means residing in a computer for correlating recorded call events with recorded disturbance events; and instruction means residing in a computer for computing a distribution of disturbed and offending cells within the telecommunications network as a function of time to obtain a statistical correlation of call events in offending cells and subsequent disturbances resulting in said disturbed cell to identify the possible source of disturbances that caused the sealing of the sealed device within the disturbed cell.
Claim 24
Dependent Claim
150 words
In a telecommunications network including one disturbed cell containing at least one sealed device and a plurality of offending cells, a program product for identifying the source of uplink interference in the disturbed cell comprising: instruction means residing in a computer for recording call events occurring in offending cells of the telecommunications network; instruction means residing in a computer for recording disturbance events occurring in the disturbed cell of the telecommunications network; instruction means residing in a computer for correlating recorded call events with recorded disturbance events; and instruction means residing in a computer for computing a distribution of disturbed and offending cells within the telecommunications network as a function of time to obtain a statistical correlation of call events in offending cells and subsequent disturbances resulting in said disturbed cell to identify the possible source of disturbances that caused the sealing of the sealed device within the disturbed cell.
Claim 25
Dependent Claim
48 words
The program product according to claim 21 wherein said instruction means residing in a computer for recording call events occurring in offending cells and instruction means residing in a computer for recording disturbance events occurring in the disturbed cell are configured to run in conjunction with each other.
Claim 26
Dependent Claim
26 words
The program product according to claim 21 wherein said instruction means residing in a computer for correlating is configured to perform as a function of time.
Claim 27
Dependent Claim
45 words
The program product according to claim 21 wherein said instruction means residing in a computer for correlating further comprising an instruction means residing in a computer for counting, said means for counting adapted to identify the number of disturbance events associated with the disturbed cell.
Claim 28
Dependent Claim
36 words
The program product according to claim 24 wherein said instruction means residing in a computer for counting is configured to perform within a delta time once a call event ends causing the disturbance events to end.
Claim 29
Dependent Claim
64 words
The program product according to claim 21 wherein said instruction means residing in a computer for correlating further comprises an instruction means residing in a computer for attempting (voice channel seizure events) for possible adjacent channel (or adjacent channel) mobiles in Call Event Recordings (CER), said instruction means residing in a computer for attempting configured to perform via time stamps of the call start.
Claim 30
Dependent Claim
38 words
The program product according to claim 21 further comprising instruction means residing in a computer for verifying said disturbance event, said instruction means residing in a computer for verifying configured to perform using free space path loss considerations.
Claim 31
Dependent Claim
54 words
The program product according to claim 27 wherein said instruction means residing in a computer for verifying further comprises instruction means residing in a computer for excluding from further analysis all adjacent channel cells for which calculated signal attenuation indicates that they are too far away to be able to generate perceived disturbance events.
Claim 32
Dependent Claim
26 words
The program product according to claim 21 further comprising instruction means residing in a computer for identifying internal sources of interference on the downlink using reciprocity.
Claim 33
Dependent Claim
55 words
The program product according to claim 29 wherein said instruction means residing in a computer for identifying is followed by instruction means residing in a computer for disturbing the mobiles of the offending cells on the downlink if the mobiles of the offending cells create interference on the uplink for the disturbed cell via reciprocity.
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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) | 2005-08-26 | 2006-02-25 | 2006-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-08-26 | 2010-02-25 | 2010-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-08-26 | 2014-02-25 | 2014-08-27 | $7700.00 | Window Closed / Lapsed |