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US 6,470,195 B1Granted
Method and apparatus for modeling a smart antenna in a network planning tool
AssigneeRaytheon Company
InventorRonald L. Meyer
Life of this patent
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AssigneeRaytheon Company
InventorRonald L. Meyer
Estimating the term…
A network planning tool (NPT) computer program is used to model characteristics of a wireless telephone network (10). The network contains a plurality of cells (12) which each include a plurality of sectors (16-18) disposed about a base station (13) that has a respective antenna for each sector. Techniques are provided for modeling smart antennas (131), including use of a switched-beam transmit and receive patterns with approximately random allocation among the beams of frequencies assigned to an associated sector. In the case of an adaptive beam-forming smart antenna, power levels for that antenna and a remote antenna operating at the same frequency are adjusted so as to increase a differential therebetween by an improvement value associated with the smart antenna. Potential uplink interference at a given base station is modeled by simulating operation of other base stations at an uplink frequency with a reduced power level. Potential interfering signals are discounted to the extent a smart antenna can intelligently reject a limited number of undesired signals.
A method comprising the step of modeling a smart antenna which has a directional operating region and which is operative with respect to a frequency group that includes a plurality of frequencies which are different, said modeling step including the steps of:
A method for modeling a wireless network which has a plurality of cells that each include at least two cell sections, and which has an antenna serving a first of said cell sections and capable of receiving signals transmitted at a selected frequency, said method comprising the steps of:
A computer-readable medium encoded with a program with the capability to model a smart antenna which has a directional operating region and which is operative with respect to a frequency group that includes a plurality of frequencies which are different, wherein said program is operable when executed to:
A computer-readable medium encoded with a program capable of modeling a wireless network which has a plurality of cells that each include at least two cell sections, and which has an antenna serving a first of said cell sections and capable of receiving signals transmitted at a selected frequency, said program being operable when executed to:
Dependencies are inferred from the claim text.