Methods, systems, and devices for determining a closest base station to a multi-mode mobile device
First Claim
1. A method for determining a closest base station to a multi-mode mobile device, the method comprising:
- determining a plurality of propagation delays with respect to a common reference time between the multi-mode mobile device and each of a first plurality of base stations, wherein each of the first plurality of base stations is associated with a different wireless communications technology from a plurality of wireless communications technologies, wherein determining the propagation delays comprises;
determining a plurality of event markers, each of the plurality of event markers representing an event associated with a transmission from a base station of the first plurality of base stations;
determining a plurality of receive times and a plurality of transmission times associated with the event markers; and
determining the propagation delays based on the receive times and the transmission times;
comparing the plurality of propagation delays between the multi-mode mobile device and the first plurality of base stations associated with the different wireless communications technologies; and
identifying a closest base station to the multi-mode mobile device from the first plurality of base stations based on the comparison.
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Accused Products
Abstract
Embodiments provide methods, systems, and/or devices to identify and/or determine a closest base station to a multi-mode mobile device among the multiple wireless communications technologies, such as different Radio Access Technologies (RATs). Having identified a closest base station to the multi-mode mobile device among the multiple wireless communications technologies, the mobile device'"'"'s location may be estimated using location information regarding the closest identified base station. In some cases, a handover or other procedure may be performed with respect to the mobile device and the closest identified base station. The multiple wireless communications technologies may include, but are not limited to, WiMAX, CDMA 1x, LTE, and/or EVDO.
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Citations
40 Claims
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1. A method for determining a closest base station to a multi-mode mobile device, the method comprising:
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determining a plurality of propagation delays with respect to a common reference time between the multi-mode mobile device and each of a first plurality of base stations, wherein each of the first plurality of base stations is associated with a different wireless communications technology from a plurality of wireless communications technologies, wherein determining the propagation delays comprises; determining a plurality of event markers, each of the plurality of event markers representing an event associated with a transmission from a base station of the first plurality of base stations; determining a plurality of receive times and a plurality of transmission times associated with the event markers; and determining the propagation delays based on the receive times and the transmission times; comparing the plurality of propagation delays between the multi-mode mobile device and the first plurality of base stations associated with the different wireless communications technologies; and identifying a closest base station to the multi-mode mobile device from the first plurality of base stations based on the comparison. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. An apparatus for determining a closest base station to a multi-mode mobile device, the system comprising:
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a means for determining a plurality of propagation delays with respect to a common reference time between the multi-mode mobile device and each of a first plurality of base stations, wherein each of the first plurality of base stations is associated with a different wireless communications technology from a plurality of wireless communications technologies, wherein the means for determining the propagation delays comprises; a means for determining a plurality of event markers, each of the plurality of event markers representing an event associated with a transmission from a base station of the first plurality of base stations; a means for determining a plurality of receive times and a plurality of transmission times associated with the event markers; and a means for determining the propagation delays based on the receive times and the transmission times; a means for comparing the plurality of propagation delays between the multi-mode mobile device and the first plurality of base stations associated with the different wireless communications technologies; and a means for identifying a closest base station to the multi-mode mobile device from the first plurality of base stations based on the comparison. - View Dependent Claims (20, 21)
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22. A wireless communications device configured for determining a closest base station to a multi-mode mobile device, the wireless communications device comprising:
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a propagation delay determination module configured to determine a plurality of propagation delays with respect to a common reference time between the multi-mode mobile device and each of a first plurality of base stations, wherein each of the first plurality of base stations is associated with a different wireless communications technology from a plurality of wireless communications technologies, wherein determining the propagation delays comprises; determining a plurality of event markers, each of the plurality of event markers representing an event associated with a transmission from a base station of the first plurality of base stations; determining a plurality of receive times and a plurality of transmission times associated with the event markers; and determining the propagation delays based on the receive times and the transmission times; a propagation delay comparison module configured to compare the plurality of propagation delays between the multi-mode mobile device and the first plurality of base stations associated with the different wireless communications technologies; and a closest base station identification module configured to identify a closest base station to the multi-mode mobile device from the first plurality of base stations based on the comparison. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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38. A computer program product for determining a closest base station to a multi-mode mobile device comprising:
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a non-transitory computer-readable medium comprising; code for determining a plurality of propagation delays with respect to a common reference time between the multi-mode mobile device and each of a first plurality of base stations, wherein each of the first plurality of base stations is associated with a different wireless communications technology from a plurality of wireless communications technologies, wherein the code for determining the propagation delays comprises; code for determining a plurality of event markers, each of the plurality of event markers representing an event associated with a transmission from a base station of the first plurality of base stations; code for determining a plurality of receive times and a plurality of transmission times associated with the event markers; and code for determining the propagation delays based on the receive times and the transmission times; code for comparing the plurality of propagation delays between the multi-mode mobile device and the first plurality of base stations associated with the different wireless communications technologies; and code for identifying a closest base station to the multi-mode mobile device from the first plurality of base stations based on the comparison. - View Dependent Claims (39, 40)
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Specification