WIRELESS ACCESS NETWORK BASE STATION AND METHOD FOR DETERMINING LOCATION INFORMATION FOR A MOBILE STATION USING UPLINK TIME-DIFFERENCE OF ARRIVAL
First Claim
1. A method for determining current location information of a mobile station comprising:
- informing a non-serving base station of ranging frame parameters for the mobile station to use when transmitting a ranging frame;
sending an initiate ranging message to the mobile station, the mobile station responsively transmitting the ranging frame within a granted uplink time-slot in accordance with the ranging frame parameters;
determining a first timing adjustment from receipt of the ranging frame from the mobile station within the granted uplink time-slot; and
receiving a second timing adjustment from the non-serving base station, the second timing adjustment being determined by the non-serving base station based on receipt of the ranging frame from the mobile station.
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Accused Products
Abstract
Embodiments of a base station, a communication system and a method for determining current location information of a mobile station using uplink time-difference of arrival (U-TDOA) in a wireless access network are generally described herein. Other embodiments may be described and claimed. In some embodiments, a first timing adjustment is determined from receipt of the ranging frame from the mobile station within the granted uplink time-slot, and a second timing adjustment is received from the non-serving base station. The second timing adjustment may be determined by the non-serving base station based on receipt of a ranging frame from the mobile station.
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Citations
30 Claims
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1. A method for determining current location information of a mobile station comprising:
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informing a non-serving base station of ranging frame parameters for the mobile station to use when transmitting a ranging frame; sending an initiate ranging message to the mobile station, the mobile station responsively transmitting the ranging frame within a granted uplink time-slot in accordance with the ranging frame parameters; determining a first timing adjustment from receipt of the ranging frame from the mobile station within the granted uplink time-slot; and receiving a second timing adjustment from the non-serving base station, the second timing adjustment being determined by the non-serving base station based on receipt of the ranging frame from the mobile station. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A serving base station comprising:
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network interface circuitry to inform a non-serving base station of ranging frame parameters for a mobile station to use when transmitting a ranging frame; a wireless transceiver to send an initiate ranging message to the mobile station, the mobile station to responsively transmit the ranging frame within a granted uplink time-slot in accordance with the ranging frame parameters; and processing circuitry to determine a first timing adjustment from receipt of the ranging frame from the mobile station within the granted time uplink time-slot, wherein the wireless transceiver receives a second timing adjustment from the non-serving base station, the second timing adjustment being determined by the non-serving base station based on receipt of the ranging frame from the mobile station. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A communication system comprising:
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the base station comprising network interface circuitry to inform a non-serving base station of ranging frame parameters for a mobile station to use when transmitting a ranging frame;
a wireless transceiver to send an initiate ranging message to the mobile station, the mobile station to responsively transmit the ranging frame within a granted uplink time-slot in accordance with the ranging frame parameters; and
processing circuitry to determine a first timing adjustment from receipt of the ranging frame from the mobile station within the granted time uplink time-slot, wherein the wireless transceiver receives a second timing adjustment from the non-serving base station, the second timing adjustment being determined by the non-serving base station based on receipt of the ranging frame from the mobile station; andone or more substantially omnidirectional antennas coupled to the wireless transceiver to transmit the initiate ranging request message to the mobile station and to receive the ranging frame from the mobile station. - View Dependent Claims (26, 27)
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28. A machine-accessible medium that provides instructions, which when accessed, cause a machine to perform operations to determine current location information of a mobile station, the operations comprising:
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informing a non-serving base station of ranging frame parameters for the mobile station to use when transmitting a ranging frame; sending an initiate ranging message to the mobile station, the mobile station responsively transmitting the ranging frame within a granted uplink time-slot in accordance with the ranging frame parameters; determining a first timing adjustment from receipt of the ranging frame from the mobile station within the granted uplink time-slot; and receiving a second timing adjustment from the non-serving base station, the second timing adjustment being determined by the non-serving base station based on receipt of the ranging frame from the mobile station. - View Dependent Claims (29, 30)
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Specification