US5946612A
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US
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Method and apparatus for performing local traffic measurements in a cellular telephone network
Assignee: Telefonaktiebolaget LM Ericsson AB
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Filing: 1997-03-28
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Granted: 1999-08-31
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Expires: 2017-03-28
Abstract
Abstract A method and apparatus for measuring telephone traffic volume in a cellular telephone system which, in a first embodiment, includes a receiver located at a proposed micro-cell site for measuring the traffic volume. In a second embodiment, a test base station transmits a signal and a processor communicates with a base station controller serving macro-cells surrounding the proposed micro-cell site to extract signal strength measurement reports transmitted to the cellular telephone network from mobile stations receiving the signal transmitted by the test base station. In a third embodiment, the test base station is located at the proposed micro-cell site and is assigned a location area identity different from that of the macro-cells surrounding the proposed micro-cell. Mobile stations operating in and around the proposed micro-cell site are required to register in the new location area and transmit a signal strength report which includes the signal strength of the test base station.
Inventors
- 👤 Åke Johansson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:26
CPC Classifications
H; H04; H04W; H04W16/00; H04W16/18
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
90 words
A method for measuring cellular telephone traffic volume in a proposed cell site of a cellular telephone network comprising the steps of: disabling mobile station power regulation within the proposed cell site; measuring signal strength and duration of mobile station transmissions on at least one radio frequency used by a base station currently servicing the proposed cell site; and extrapolating the cellular telephone traffic volume based on the signal strengths, the signal durations, and total number of radio frequencies used by the base station currently servicing the proposed cell site.
Claim 2
Independent Claim
90 words
A method for measuring cellular telephone traffic volume in a proposed cell site of a cellular telephone network comprising the steps of: disabling mobile station power regulation within the proposed cell site; measuring signal strength and duration of mobile station transmissions on at least one radio frequency used by a base station currently servicing the proposed cell site; and extrapolating the cellular telephone traffic volume based on the signal strengths, the signal durations, and total number of radio frequencies used by the base station currently servicing the proposed cell site.
Claim 3
Dependent Claim
33 words
The method recited in claim 1, wherein the step of measuring signal strength and duration comprises sampling the signal strength of each time slot transmitted by mobile stations within the proposed cell site.
Claim 4
Dependent Claim
92 words
The method recited in claim 2, wherein the step of extrapolating the cellular telephone traffic volume comprises the steps of: dividing the number of sampled time slots, wherein the signal strength exceeds a desired threshold level, by the product of total number of time slots sampled and the total number of radio frequencies measured to calculate a fractional time that the sampled signal exceeded the desired threshold level; and multiplying the fractional time by the total number of radio frequencies used by the base station currently servicing the proposed cell site location.
Claim 5
Independent Claim
96 words
A method for measuring cellular telephone traffic volume in a proposed cell site of a cellular telephone network comprising the steps of: disabling mobile station power regulation within the proposed cell site; measuring signal strength and duration of mobile station transmissions on at least one radio frequency for each of a plurality of base stations currently servicing the proposed cell site; and extrapolating the cellular telephone traffic volume based on the signal strengths, the signal durations, and total number of radio frequencies collectively used by the plurality of base stations currently servicing the proposed cell site.
Claim 6
Independent Claim
96 words
A method for measuring cellular telephone traffic volume in a proposed cell site of a cellular telephone network comprising the steps of: disabling mobile station power regulation within the proposed cell site; measuring signal strength and duration of mobile station transmissions on at least one radio frequency for each of a plurality of base stations currently servicing the proposed cell site; and extrapolating the cellular telephone traffic volume based on the signal strengths, the signal durations, and total number of radio frequencies collectively used by the plurality of base stations currently servicing the proposed cell site.
Claim 7
Dependent Claim
33 words
The method recited in claim 4, wherein the step of measuring signal strength and duration comprises sampling the signal strength of each time slot transmitted by mobile stations within the proposed cell site.
Claim 8
Dependent Claim
93 words
The method recited in claim 4, wherein the step of extrapolating the cellular telephone traffic volume comprises the steps of: dividing the number of sampled time slots, wherein the signal strength exceeds a desired threshold level, by the product of the total number of time slots measured and the total number of radio frequencies sampled to calculate a fractional time that the sampled signal exceeds the desired threshold level; and multiplying the fractional time by the total number of radio frequencies collectively used by the base stations currently servicing the proposed cell site.
Claim 9
Independent Claim
131 words
A method for measuring cellular telephone traffic volume in a proposed cell site of a hierarchical cellular telephone network comprising the steps of: establishing a test base station within the cellular telephone network; transmitting at least one assigned radio frequency from the test base station located at the proposed cell site; monitoring, over a period of time, the number of signal strength reports transmitted by mobile stations to the cellular telephone network containing a signal strength measurement of the test base station; and calculating the cellular telephone traffic volume based on the total number of signal strength reports containing a signal strength measurement of the test base station wherein the strength exceeds a desired threshold level, the monitored period of time, and a period of time representing each signal strength report.
Claim 10
Independent Claim
131 words
A method for measuring cellular telephone traffic volume in a proposed cell site of a hierarchical cellular telephone network comprising the steps of: establishing a test base station within the cellular telephone network; transmitting at least one assigned radio frequency from the test base station located at the proposed cell site; monitoring, over a period of time, the number of signal strength reports transmitted by mobile stations to the cellular telephone network containing a signal strength measurement of the test base station; and calculating the cellular telephone traffic volume based on the total number of signal strength reports containing a signal strength measurement of the test base station wherein the strength exceeds a desired threshold level, the monitored period of time, and a period of time representing each signal strength report.
Claim 11
Dependent Claim
58 words
The method recited in claim 7, wherein the step of establishing a test base station further includes the steps of: assigning at least one radio frequency for use by the test base station; instructing mobile stations to include the test base station in signal strength reports; and prohibiting mobile stations from attempting to access the test base station.
Claim 12
Dependent Claim
87 words
The method recited in claim 7, wherein the step of establishing a test base station further includes the steps of: assigning at least one radio frequency for transmission by the test base station; including the test base station in broadcast control channel allocation lists of cell sites surrounding the proposed cell site thereby requiring mobile stations to include measured signal strengths of the test base station in signal strength reports; and setting a cell-bar flag to prohibit mobile stations from attempting to access the test base station.
Claim 13
Dependent Claim
24 words
The method recited in claim 7, wherein the step of transmitting the at least one assigned radio frequency comprises transmitting a broadcast control channel.
Claim 14
Dependent Claim
46 words
The method recited in claim 10, wherein the step of extracting signal strength reports from the cellular telephone network includes extracting the signal strength reports from at least one base station controller in communication with at least one base station currently servicing the proposed cell site.
Claim 15
Dependent Claim
84 words
The method recited in claim 7, wherein the step of monitoring the number of signal strength reports transmitted by mobile stations includes the steps of: omitting the test base station from neighbor cell lists to identify signal strength reports as containing an unidentified neighbor; extracting, from the cellular telephone network, all signal strength reports identified as an unidentified neighbor; and recording the number of signal strength reports containing a signal strength measurement for the unidentified neighbor in which the strength exceeds a threshold level.
Claim 16
Dependent Claim
91 words
The method recited in claim 7, wherein the step of calculating the cellular telephone traffic volume includes the steps of: multiplying the total number of signal strength reports containing a signal strength measurement of the test base station, wherein the signal strength of the test base station exceeds a desired threshold level, by the period of time representing each signal strength report to obtain a duration of time when the test base station signal strength exceeds the threshold level; and dividing the duration of time by the monitored period of time.
Claim 17
Independent Claim
98 words
An apparatus for measuring cellular telephone traffic volume in a proposed cell site of a hierarchical cellular telephone network comprising: a radio transmitter located at the proposed cell site for transmitting a broadcast control channel; at least one base station for receiving signal strength reports containing signal strength measurements of the radio transmitter from mobile stations; and a processor for monitoring the signal strength reports received by the base station, and further, for calculating the cellular telephone traffic volume based on the signal strength reports, signal durations and total number of radio frequencies used by the radio transmitter.
Claim 18
Independent Claim
98 words
An apparatus for measuring cellular telephone traffic volume in a proposed cell site of a hierarchical cellular telephone network comprising: a radio transmitter located at the proposed cell site for transmitting a broadcast control channel; at least one base station for receiving signal strength reports containing signal strength measurements of the radio transmitter from mobile stations; and a processor for monitoring the signal strength reports received by the base station, and further, for calculating the cellular telephone traffic volume based on the signal strength reports, signal durations and total number of radio frequencies used by the radio transmitter.
Claim 19
Independent Claim
161 words
A method for measuring cellular telephone traffic volume in a proposed cell site of a cellular telephone network comprising the steps of: establishing a test base station within the cellular telephone network; transmitting at least one assigned radio frequency from the test base station located at the proposed cell site; monitoring, over a period of time, the number of signal strength reports transmitted by mobile stations to the cellular telephone network containing a signal strength measurement of the test base station; extracting the signal strength reports from at least one base station-controller in communication with at least on base station currently servicing the proposed cell site; and calculating the cellular telephone traffic volume based on the total number of signal strength reports wherein the signal strength measurement of the test base station exceeds the signal strength measurement of a base station currently serving the mobile station, the monitored period of time, and a period of time representing each signal strength report.
Claim 20
Independent Claim
161 words
A method for measuring cellular telephone traffic volume in a proposed cell site of a cellular telephone network comprising the steps of: establishing a test base station within the cellular telephone network; transmitting at least one assigned radio frequency from the test base station located at the proposed cell site; monitoring, over a period of time, the number of signal strength reports transmitted by mobile stations to the cellular telephone network containing a signal strength measurement of the test base station; extracting the signal strength reports from at least one base station-controller in communication with at least on base station currently servicing the proposed cell site; and calculating the cellular telephone traffic volume based on the total number of signal strength reports wherein the signal strength measurement of the test base station exceeds the signal strength measurement of a base station currently serving the mobile station, the monitored period of time, and a period of time representing each signal strength report.
Claim 21
Dependent Claim
56 words
The method recited in claim 15, wherein the step of establishing a test base station further includes the steps of: assigning a radio frequency for use by the test base station; instructing mobile stations to include the test base station in signal strength reports; and prohibiting mobile stations from attempting to access the test base station.
Claim 22
Dependent Claim
85 words
The method recited in claim 15, wherein the step of establishing a test base station further includes the steps of: assigning a radio frequency for transmission by the test base station; including the test base station in broadcast control channel allocation lists of cell sites surrounding the proposed cell site thereby requiring mobile stations to include measured signal strengths of the test base station in signal strength reports; and setting a cell-bar flag to prohibit mobile stations from attempting to access the test base station.
Claim 23
Dependent Claim
24 words
The method recited in claim 15, wherein the step of transmitting the at least one assigned radio frequency comprises transmitting a broadcast control channel.
Claim 24
Dependent Claim
99 words
The method recited in claim 15, wherein the step of monitoring the number of signal strength reports transmitted by mobile stations includes the steps of: omitting the test base station from neighbor cell lists to identify signal strength reports as containing an unidentified neighbor; extracting, from the cellular telephone network, all signal strength reports identified as containing an unidentified neighbor; and recording the number of signal strength reports containing a signal strength measurement for the unidentified neighbor in which the strength of the test base station exceeds the signal strength of a base station currently serving the mobile station.
Claim 25
Dependent Claim
98 words
The method recited in claim 15, wherein the step of calculating the cellular telephone traffic volume includes the steps of: multiplying the total number of signal strength reports, wherein the signal strength of the test base station exceeds the signal strength of the base station currently serving the mobile station, by the period of time representing each signal strength report to obtain a duration of time when the test base station signal strength exceeds the signal strength of the base station currently serving the mobile station; and dividing the duration of time by the monitored period of time.
Claim 26
Independent Claim
162 words
A method for measuring cellular telephone traffic volume in a proposed cell site of a cellular telephone network comprising the steps of: locating a test base station within the cellular telephone network; assigning the proposed cell site a new location area identity different from cell sites surrounding the proposed cell site thereby forcing idle mobile stations to register with the test base station; transmitting a broadcast control channel from the test base station; receiving location updating requests and a signal strength measurement reports transmitted by idle mobile stations; responding with a rejection to the location updating request, the response being delayed until a signal strength measurement report has been received by the test base station; and multiplying the number of signal strength reports transmitted to the test base station, wherein the strength of the test base station exceeds a desired threshold level, by a statistical ratio of the number of active to idle mobile stations to determine the cellular telephone traffic volume.
Claim 27
Independent Claim
162 words
A method for measuring cellular telephone traffic volume in a proposed cell site of a cellular telephone network comprising the steps of: locating a test base station within the cellular telephone network; assigning the proposed cell site a new location area identity different from cell sites surrounding the proposed cell site thereby forcing idle mobile stations to register with the test base station; transmitting a broadcast control channel from the test base station; receiving location updating requests and a signal strength measurement reports transmitted by idle mobile stations; responding with a rejection to the location updating request, the response being delayed until a signal strength measurement report has been received by the test base station; and multiplying the number of signal strength reports transmitted to the test base station, wherein the strength of the test base station exceeds a desired threshold level, by a statistical ratio of the number of active to idle mobile stations to determine the cellular telephone traffic volume.
Claim 28
Dependent Claim
17 words
The method recited in claim 21, wherein the base station is disconnected from the cellular telephone network.
Claim 29
Independent Claim
169 words
A method for measuring cellular telephone traffic volume in a proposed cell site of a cellular telephone network comprising the steps of: locating a test base station within the cellular telephone network; assigning the proposed cell site a new location area identity different from cell sites surrounding the proposed cell site thereby forcing idle mobile stations to register with the test base station; transmitting a broadcast control channel from the test base station; receiving location updating requests and a signal strength measurement reports transmitted by idle mobile stations; responding with a rejection to the location updating request, the response being delayed until a signal strength measurement report has been received by the test base station; and multiplying the number of signal strength reports transmitted to the test base station, wherein the signal strength of the test base station exceeds signal strengths of base stations surrounding the proposed cell site, by a statistical ratio of the number of active to idle mobile stations to determine the cellular telephone traffic volume.
Claim 30
Independent Claim
169 words
A method for measuring cellular telephone traffic volume in a proposed cell site of a cellular telephone network comprising the steps of: locating a test base station within the cellular telephone network; assigning the proposed cell site a new location area identity different from cell sites surrounding the proposed cell site thereby forcing idle mobile stations to register with the test base station; transmitting a broadcast control channel from the test base station; receiving location updating requests and a signal strength measurement reports transmitted by idle mobile stations; responding with a rejection to the location updating request, the response being delayed until a signal strength measurement report has been received by the test base station; and multiplying the number of signal strength reports transmitted to the test base station, wherein the signal strength of the test base station exceeds signal strengths of base stations surrounding the proposed cell site, by a statistical ratio of the number of active to idle mobile stations to determine the cellular telephone traffic volume.
Claim 31
Dependent Claim
17 words
The method recited in claim 23, wherein the base station is disconnected from the cellular telephone network.
Claim 32
Dependent Claim
149 words
Apparatus for measuring cellular telephone traffic volume in a proposed cell site of a cellular telephone network comprising: a test base station assigned a distinct location area identity and located at the proposed cell site, the test base station for broadcasting a control channel and receiving both location updating requests and signal strength reports containing signal strength measurements of the test base station from mobile stations, the base station further for transmitting a rejection denying service by the test base station to the mobile station in response to receipt of the location updating request and the signal strength report, and a processor communicating with the test base station, the processor for recording signal strength reports received by the test base station and further for calculating cellular telephone traffic volume based on the signal strength reports, signal durations and total number of radio frequencies used by the test base station.
Claim 33
Dependent Claim
149 words
Apparatus for measuring cellular telephone traffic volume in a proposed cell site of a cellular telephone network comprising: a test base station assigned a distinct location area identity and located at the proposed cell site, the test base station for broadcasting a control channel and receiving both location updating requests and signal strength reports containing signal strength measurements of the test base station from mobile stations, the base station further for transmitting a rejection denying service by the test base station to the mobile station in response to receipt of the location updating request and the signal strength report, and a processor communicating with the test base station, the processor for recording signal strength reports received by the test base station and further for calculating cellular telephone traffic volume based on the signal strength reports, signal durations and total number of radio frequencies used by the test base station.
References Cited (Backward Citations)
US4670899A
Cited
US5267262A
Cited
EP0431956A2
Cited
US5243598A
Cited
US5507007A
Cited
US5465390A
Cited
WO1994006222A1
Cited
US5666656A
Cited
US5787350A
Cited
US5697053A
Cited
WO1996009696A2
Cited
US5649000A
Cited
EP0752766A1
Cited
WO1996035305A1
Cited
US5613217A
Cited
US5828962A
Cited
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 2002-08-30 | 2003-03-01 | 2003-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-08-30 | 2007-03-01 | 2007-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-08-30 | 2011-03-01 | 2011-08-31 | $7700.00 | Window Closed / Lapsed |