Method and wireless communication system for locating wireless transmit/receive units
First Claim
1. A method for updating a location of a wireless transmit/receive unit (WTRU), the method comprising:
- a WTRU receiving a message including a plurality of supported class-of-service (COS) types and associated COS-specific location update periods;
the WTRU setting a timer to a COS-specific location update period that is determined based on the COS type of an application that the WTRU is currently running; and
the WTRU periodically transmitting a location update frame at an expiration of the timer.
1 Assignment
0 Petitions
Accused Products
Abstract
A method and system for locating a wireless transmit/receive unit (WTRU) is disclosed. A wireless communication system comprises a plurality of access points (APs). Each AP broadcasts a message indicating class-of-service (COS) types that the wireless communication system supports. After a WTRU registers with one of the plurality of APs, the WTRU receives the broadcast message. The WTRU sets a timer for location update in accordance with an application that the WTRU is running and the COS type with which it is associated. The WTRU transmits a location update frame to the APs at the expiration of the timer, and a location of the WTRU is calculated using the location update frame.
45 Citations
13 Claims
-
1. A method for updating a location of a wireless transmit/receive unit (WTRU), the method comprising:
-
a WTRU receiving a message including a plurality of supported class-of-service (COS) types and associated COS-specific location update periods; the WTRU setting a timer to a COS-specific location update period that is determined based on the COS type of an application that the WTRU is currently running; and the WTRU periodically transmitting a location update frame at an expiration of the timer. - View Dependent Claims (2)
-
-
3. A wireless transmit/receive unit (WTRU) comprising:
-
a timer, the timer being based on a class-of-service (COS)-specific location update period determined based on a COS type of an application that the WTRU is currently running; and a transceiver for receiving a message including a plurality of supported COS types and associated COS-specific location update periods, and periodically transmitting a location update frame at an expiration of the timer. - View Dependent Claims (4)
-
-
5. A method for locating a wireless transmit/receive unit (WTRU), the method comprising:
-
an access point (AP) broadcasting a message a plurality of supported class-of-service (COS) types and associated COS-specific location update periods; the AP receiving a location update frame periodically from a WTRU, the location update frame being periodically sent at an expiration of a timer that is set to a COS-specific location update period determined based on a COS type of an application that the WTRU is currently running; the AP calculating a location of the WTRU using the location update frame; and the AP implementing a location-based service based on the location of the WTRU. - View Dependent Claims (6, 7, 8)
-
-
9. An access point (AP) comprising:
-
a transmitter for broadcasting a message including a plurality of supported class-of-service (COS) types and associated COS-specific location update periods; a receiver for receiving a location update frame from a wireless transmit/receive unit (WTRU), the location update frame being sent periodically at an expiration of a timer that is set to a COS-specific location update period determined based on a COS type of an application currently running at the WTRU; and a calculation unit for calculating a location of the WTRU based on the location update frame. - View Dependent Claims (10, 11, 12, 13)
-
Specification