US6535815B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Position updating method for a mobile terminal equipped with a positioning receiver
Assignee: Telefonaktiebolaget LM Ericsson AB
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Filing: 2000-12-22
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Granted: 2003-03-18
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Expires: 2020-12-22
Abstract
Abstract A mobile terminal equipped with a GPS receiver uses a quality of service parameter to determine whether to request aiding data from a location server connected to the mobile communication network. When a request is received by the mobile terminal for its current position, the mobile terminal determines a desired quality of service. Based on the desired quality of service, the mobile terminal then determines whether aiding data currently stored in its memory is sufficient to meet the specified quality of service. If so, the mobile terminal computes its current location using aiding data currently stored in its memory. If not, the mobile terminal may request aiding data from the network or acquire current aiding data from a GPS satellite.
Inventors
- 👤 Leland Scott Bloebaum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:21
CPC Classifications
H; H04; H04B; H04B7/00; H04B7/24; H04B7/26; G; G01; G01S; G01S19/00; G01S19/01; G01S19/13; G01S19/24; G01S19/25; G01S19/258; G01S19/252; G01S19/256; G01S5/00; G01S5/0009; G01S5/0018; G01S5/0027
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
91 words
A method implemented by a mobile terminal for determining the current position of a mobile terminal, said method comprising: receiving a request for said current position of said mobile terminal; determining a desired quality of service; determining whether aiding data stored in said mobile terminal is sufficient to compute an estimate of said current position meeting said desired quality of service; and obtaining additional aiding data from a remote source if said stored aiding data is insufficient to compute said estimate of said current position meeting said desired quality of service.
Claim 2
Independent Claim
91 words
A method implemented by a mobile terminal for determining the current position of a mobile terminal, said method comprising: receiving a request for said current position of said mobile terminal; determining a desired quality of service; determining whether aiding data stored in said mobile terminal is sufficient to compute an estimate of said current position meeting said desired quality of service; and obtaining additional aiding data from a remote source if said stored aiding data is insufficient to compute said estimate of said current position meeting said desired quality of service.
Claim 3
Dependent Claim
24 words
The method of claim 1 wherein obtaining additional aiding data from a remote source comprises obtaining additional aiding data from a mobile communication network.
Claim 4
Dependent Claim
24 words
The method of claim 1 wherein obtaining additional aiding data from a remote source comprises obtaining additional aiding data from at least one satellite.
Claim 5
Dependent Claim
13 words
The method of claim 1 wherein said additional aiding data comprises time information.
Claim 6
Dependent Claim
18 words
The method of claim 1 wherein said additional aiding data comprises satellite ephemeris, almanac data, or correction data.
Claim 7
Dependent Claim
18 words
The method of claim 1 wherein said additional aiding data comprises an approximate position of said mobile terminal.
Claim 8
Dependent Claim
20 words
The method of claim 1 wherein said additional aiding data comprises a list of satellites visible to said mobile terminal.
Claim 9
Dependent Claim
23 words
The method of claim 1 wherein determining a desired quality of service comprises receiving a specified quality of service from a requesting application.
Claim 10
Dependent Claim
23 words
The method of claim 1 wherein determining a desired quality of service comprises determining a default setting for said desired quality of service.
Claim 11
Dependent Claim
35 words
The method of claim 1 wherein determining a desired quality of service comprises: prompting a user to input said desired quality of service; and receiving input from said user indicating said desired quality of service.
Claim 12
Dependent Claim
15 words
The method of claim 1 further comprising computing said current position of said mobile terminal.
Claim 13
Dependent Claim
29 words
The method of claim 11 wherein computing said current position of said mobile terminal comprises computing said current position of said mobile terminal based on said stored aiding data.
Claim 14
Dependent Claim
32 words
The method of claim 12 wherein computing said current position of said mobile terminal comprises computing said current position of said mobile terminal based on stored ephemeris data and/or stored time information.
Claim 15
Dependent Claim
28 words
The method of claim 13 wherein computing said current position of said mobile terminal comprises computing said current position of said mobile terminal based on aged ephemeris data.
Claim 16
Dependent Claim
30 words
The method of claim 11 wherein computing said current position of said mobile terminal comprises computing said current position based on said additional aiding data obtained from said remote source.
Claim 17
Dependent Claim
28 words
The method of claim 11 wherein computing said current position of said mobile terminal comprises computing said current position using a last known location of said mobile terminal.
Claim 18
Dependent Claim
98 words
A mobile terminal comprising: a positioning receiver; a processor for computing current position based on navigation signals received by said positioning receiver; said processor programmed to: determine a desired quality of service for the computation of current position; determine whether aiding data stored in said mobile terminal is sufficient to compute an estimate of said current position meeting said desired quality of service; and obtain additional aiding data from a remote source external to the mobile terminal if said stored aiding data is insufficient to compute said estimate of said current position meeting said desired quality of service.
Claim 19
Dependent Claim
98 words
A mobile terminal comprising: a positioning receiver; a processor for computing current position based on navigation signals received by said positioning receiver; said processor programmed to: determine a desired quality of service for the computation of current position; determine whether aiding data stored in said mobile terminal is sufficient to compute an estimate of said current position meeting said desired quality of service; and obtain additional aiding data from a remote source external to the mobile terminal if said stored aiding data is insufficient to compute said estimate of said current position meeting said desired quality of service.
Claim 20
Dependent Claim
13 words
The mobile terminal of claim 17 wherein the remote source is a network.
Claim 21
Dependent Claim
13 words
The mobile terminal of claim 17 wherein the remote source is a satellite.
Claim 22
Independent Claim
126 words
A system comprising: a fixed network; a location server connected to said fixed network to capture and store aiding data from a multiplicity of sources; and a mobile terminal communicating with the fixed network, said mobile terminal comprising: a positioning receiver a processor for computing current position based on signals received by said positioning receiver; said processor programmed to: determine a desired quality of service for the computation of said current position; determine whether aiding data stored in said mobile terminal is sufficient to compute an estimate of said current position meeting said desired quality of service; and obtain aiding data from said fixed network if said stored aiding data is insufficient to compute said estimate of said current position meeting said desired quality of service.
Claim 23
Independent Claim
126 words
A system comprising: a fixed network; a location server connected to said fixed network to capture and store aiding data from a multiplicity of sources; and a mobile terminal communicating with the fixed network, said mobile terminal comprising: a positioning receiver a processor for computing current position based on signals received by said positioning receiver; said processor programmed to: determine a desired quality of service for the computation of said current position; determine whether aiding data stored in said mobile terminal is sufficient to compute an estimate of said current position meeting said desired quality of service; and obtain aiding data from said fixed network if said stored aiding data is insufficient to compute said estimate of said current position meeting said desired quality of service.
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USPTO Annuity & Maintenance Windows
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| 3.5 Years (Year 4) | 2006-03-17 | 2006-09-16 | 2007-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-03-17 | 2010-09-16 | 2011-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-03-17 | 2014-09-16 | 2015-03-18 | $7700.00 | Window Closed / Lapsed |