System and method for locating a wireless local area network
First Claim
1. A method of locating a wireless local area network, WLAN, when a mobile terminal is operating in a cellular communication network, said method comprising the steps of:
- determining a position of the mobile terminal utilizing a procedure that minimizes battery consumption in the mobile terminal, said procedure including;
determining a level of battery consumption in the mobile terminal for each of a plurality of locating methodologies;
determining whether each locating methodology is available; and
selecting an available methodology with the lowest level of battery consumption to determine the position of the mobile terminal;
retrieving from a WLAN database, a position associated with a WLAN operating within the coverage area of the cellular network;
determining whether the position of the mobile terminal is close enough to the position of the WLAN for the mobile terminal to connect to the WLAN; and
if the position of the mobile terminal is close enough to the position of the WLAN for the mobile terminal to connect to the WLAN, sending a notification from the cellular network to the mobile terminal indicating that the mobile terminal is within range of the WLAN.
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Accused Products
Abstract
A system and method for finding a wireless local area network, WLAN, when a mobile terminal is connected to a cellular network. A position associated with each WLAN operating within the coverage area of the cellular network is stored in a database. At predefined intervals or conditions, the system determines a current position of the mobile terminal, and determines whether the current position of the mobile terminal is close enough to a stored WLAN position for the mobile terminal to connect to the WLAN corresponding to the stored WLAN position. If so, a notification is sent to the mobile terminal indicating that the mobile terminal is within range of the identified WLAN. The mobile terminal then scans for the identified WLAN.
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Citations
43 Claims
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1. A method of locating a wireless local area network, WLAN, when a mobile terminal is operating in a cellular communication network, said method comprising the steps of:
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determining a position of the mobile terminal utilizing a procedure that minimizes battery consumption in the mobile terminal, said procedure including; determining a level of battery consumption in the mobile terminal for each of a plurality of locating methodologies; determining whether each locating methodology is available; and selecting an available methodology with the lowest level of battery consumption to determine the position of the mobile terminal; retrieving from a WLAN database, a position associated with a WLAN operating within the coverage area of the cellular network; determining whether the position of the mobile terminal is close enough to the position of the WLAN for the mobile terminal to connect to the WLAN; and if the position of the mobile terminal is close enough to the position of the WLAN for the mobile terminal to connect to the WLAN, sending a notification from the cellular network to the mobile terminal indicating that the mobile terminal is within range of the WLAN. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A system for locating a wireless local area network, WLAN, when a mobile terminal is operating in a cellular communication network, said system comprising:
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a database in the cellular network adapted to store a position for at least one WLAN operating within the coverage area of the cellular network; means within the cellular network for determining the position of the mobile terminal, said position determining means being selected from a number of position determining means to minimize battery consumption by the mobile terminal; a WLAN retrieval unit that receives the position of the mobile terminal from the serving mobile positioning center and accesses the database to determine whether the position of the mobile terminal is close enough to the position of the WLAN for the mobile terminal to connect to the WLAN; and a WLAN notification message generator that sends a notification from the cellular network to the mobile terminal indicating that the mobile terminal is within range of the WLAN, if the position of the mobile terminal is close enough to the position of the WLAN for the mobile terminal to connect to the WLAN. - View Dependent Claims (15, 16)
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17. A method of locating a wireless local area network, WLAN, when a mobile terminal is operating in a cellular communication network, said method comprising the steps of:
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storing in a database, a position for a WLAN operating within the coverage area of the cellular network; obtaining by a server, a position of the mobile terminal utilizing a procedure selected to minimize battery consumption in the mobile terminal; accessing the database by the server to determine whether the obtained position of the mobile terminal is close enough to the position of the WLAN for the mobile terminal to connect to the WLAN; and if the obtained position of the mobile terminal is close enough to the position of the WLAN for the mobile terminal to connect to the WLAN, sending a notification from the server to the mobile terminal indicating that the mobile terminal is within range of the WLAN. - View Dependent Claims (18, 19, 20, 21, 22, 23)
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24. A system for locating a wireless local area network, WLAN, when a mobile terminal is operating in a cellular communication network, said system comprising:
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a database that stores a position for each of a plurality of WLANs operating within the coverage area of the cellular network; a server external to the cellular network that communicates with the cellular network and has access to the database, said server comprising; a position request unit that requests the cellular network to determine a position of the mobile terminal; a WLAN retrieval unit that receives the determined position of the mobile terminal from the cellular network and accesses the database to determine whether the determined position of the mobile terminal is close enough to the position of an identified WLAN for the mobile terminal to connect to the identified WLAN; and a WLAN notification message generator that sends a notification from the server to the mobile terminal indicating that the mobile terminal is within range of the identified WLAN, if the determined position of the mobile terminal is close enough to the position of the identified WLAN for the mobile terminal to connect to the identified WLAN; and means within the cellular network for determining the position of the mobile terminal upon receiving a position request from the server, and for forwarding the determined position to the server, wherein the position determining means selects a determining procedure from a plurality of available procedures to minimize battery consumption by the mobile terminal. - View Dependent Claims (25)
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26. A method performed by a mobile terminal for locating a wireless local area network, WLAN, when the mobile terminal is operating in a cellular communication network, said method comprising the steps of:
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determining whether a predefined time period has elapsed since a position of the mobile terminal was last determined; if the predefined time period has elapsed, determining the current position of the mobile terminal utilizing a procedure selected to minimize battery consumption in the mobile terminal; accessing a database that stores positions for corresponding WLANs operating within the coverage area of the cellular network, said accessing step determining whether there are any stored WLAN positions in the database that are close enough for the mobile terminal to connect to the corresponding WLAN; and if there is a stored position in the database that is close enough for the mobile terminal to connect to the corresponding WLAN, scanning for the corresponding WLAN. - View Dependent Claims (27, 28, 29, 30, 31, 32)
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33. A method performed by a mobile terminal for locating a wireless local area network, WLAN, when the mobile terminal is operating in a cellular communication network, said method comprising the steps of:
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determining whether the mobile terminal has moved at least a predefined distance since the position of the mobile terminal was last determined; determining the current position of the mobile terminal if it is determined that the mobile terminal has moved at least the predefined distance since the position of the mobile terminal was last determined, wherein the current position of the mobile terminal is determined utilizing a procedure selected to minimize battery consumption in the mobile terminal; accessing a database that stores positions for corresponding WLANs operating within the coverage area of the cellular network, said accessing step determining whether there are any stored WLAN positions in the database that are close enough for the mobile terminal to connect to the corresponding WLAN; and if there is a stored position in the database that is close enough for the mobile terminal to connect to the corresponding WLAN, scanning for the corresponding WLAN. - View Dependent Claims (34)
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35. A mobile terminal that locates a wireless local area network, WLAN, said mobile terminal comprising:
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a positioning unit that determines a current position of the mobile terminal utilizing a procedure selected to minimize battery consumption in the mobile terminal; a WLAN retrieval unit that receives the current position of the mobile terminal from the positioning unit and accesses a database that stores positions for corresponding WLANs operating within the coverage area of the cellular network, said WLAN retrieval unit determining whether there is a stored position in the database that is close enough to the determined position of the mobile terminal for the mobile terminal to connect to the WLAN corresponding to the stored position; and a WLAN scanner that scans for WLANs upon being notified by the WLAN retrieval unit that there is a stored position in the database that is close enough to the determined position of the mobile terminal for the mobile terminal to connect to the WLAN corresponding to the stored position. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42)
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43. A system for locating a wireless local area network, WLAN, when a mobile terminal is operating in a cellular communication network, said system comprising:
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a database in the cellular network adapted to store a position for at least one WLAN operating within the coverage area of the cellular network; a mobile terminal having means for determining a position of the mobile terminal utilizing a procedure selected to minimize battery consumption in the mobile terminal; a WLAN retrieval unit that receives the position of the mobile terminal from the mobile terminal and accesses the database to determine whether the position of the mobile terminal is close enough to the position of the WLAN for the mobile terminal to connect to the WLAN; and a WLAN notification message generator that sends a notification from the cellular network to the mobile terminal indicating that the mobile terminal is within range of the WLAN, if the position of the mobile terminal is close enough to the position of the WLAN for the mobile terminal to connect to the WLAN.
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Specification