Method and system for inter-frequency handoff and capacity enhancement in a wireless telecommunications network
First Claim
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1. A method of allocating air interface resources in a wireless telecommunications network, the method comprising the steps of:
- determining a projected geographic position of a mobile station;
using the projected geographic position to identify a plurality of frequency-sectors available to serve the mobile station;
selecting a preferred frequency-sector from the plurality of frequency-sectors; and
instructing the mobile station to operate in the preferred frequency-sector, wherein determining the projected geographic position of the mobile station comprises obtaining location information from a mobile positioning center, wherein using the projected geographic position to identify a plurality of frequency-sectors available to serve the mobile station comprises referencing a data file that correlates positions with available frequency-sectors, and wherein instructing the mobile station to operate in the preferred frequency-sector comprises sending a channel-assignment message to the mobile station, wherein the channel-assignment message is selected from the group consisting of a channel list message and a global service redirection message.
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Abstract
A method and system for allocating air interface resources in a wireless telecommunications network. A control entity determines the current or projected location of a mobile station. Using the location, the control entity identifies the physical sectors and respective carrier frequencies available to serve the mobile station. The control entity then selects an optimal physical sector and respective carrier frequency and instructs the mobile station to operate in the selected physical sector using the selected carrier frequency.
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Citations
18 Claims
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1. A method of allocating air interface resources in a wireless telecommunications network, the method comprising the steps of:
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determining a projected geographic position of a mobile station;
using the projected geographic position to identify a plurality of frequency-sectors available to serve the mobile station;
selecting a preferred frequency-sector from the plurality of frequency-sectors; and
instructing the mobile station to operate in the preferred frequency-sector, wherein determining the projected geographic position of the mobile station comprises obtaining location information from a mobile positioning center, wherein using the projected geographic position to identify a plurality of frequency-sectors available to serve the mobile station comprises referencing a data file that correlates positions with available frequency-sectors, and wherein instructing the mobile station to operate in the preferred frequency-sector comprises sending a channel-assignment message to the mobile station, wherein the channel-assignment message is selected from the group consisting of a channel list message and a global service redirection message. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of allocating air interface resources in a wireless telecommunications network, the method comprising the steps of:
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determining a geographic position of a mobile station;
using the geographic position to identify a plurality of frequency-sectors available to serve the mobile station;
selecting a preferred frequency-sector from the plurality of frequency-sectors; and
instructing the mobile station to operate in the preferred frequency-sector, wherein determining the geographic position of the mobile station comprises obtaining location information from a mobile positioning center, wherein selecting the preferred frequency-sector comprises selecting a frequency-sector based at least in part on a measure of congestion in the preferred frequency-sector, and wherein instructing the mobile station to operate in the preferred frequency-sector comprises sending a channel-assignment message to the mobile station, wherein the channel-assignment message is selected from the group consisting of a channel list message and a global service redirection message. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A system for allocating air interface resources in a wireless telecommunications network, the system comprising, in combination:
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a processor;
a data storage medium;
a first set of machine language instructions stored in the data storage medium and executable by the processor to use a projected geographic position of a mobile station to identify a plurality of frequency-sectors available to serve the mobile station;
a second set of machine language instructions stored in the data storage medium and executable by the processor to select a preferred frequency-sector from the plurality of frequency-sectors;
a third set of machine language instructions stored in the data storage medium and executable by the processor to instruct the mobile station to operate in the preferred frequency-sector by sending a channel-assignment message selected from the group consisting of a channel list message and a global service redirection message; and
a data file that correlates positions with available frequency-sectors, wherein the first set of machine language instructions is executable to reference the data file so as to identify available frequency-sectors corresponding to the projected geographic position of the mobile station, wherein the projected geographic position is determined by a process comprising obtaining location information from a mobile positioning center. - View Dependent Claims (14, 15)
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16. A system for allocating air interface resources in a wireless telecommunications network, the system comprising, in combination:
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a processor;
a data storage medium;
a first set of machine language instructions stored in the data storage medium and executable by the processor to use a geographic position of a mobile station to identify a plurality of frequency-sectors available to serve the mobile station;
a second set of machine language instructions stored in the data storage medium and executable by the processor to select a preferred frequency-sector from the plurality of frequency-sectors; and
a third set of machine language instructions stored in the data storage medium and executable by the processor to instruct the mobile station to operate in the preferred frequency-sector by sending a channel-assignment message selected from the group consisting of a channel list message and a global service redirection message, wherein the second set of machine language instructions is executable to select the preferred frequency-sector based at least in part on a measure of congestion in the preferred frequency-sector, and wherein the geographic position is determined by a process comprising obtaining location information from a mobile positioning center. - View Dependent Claims (17, 18)
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Specification