Method of calculating signal propagation loss and creating a data base therefor
First Claim
1. A method for determining a final propagation loss of a signal transmitted from a trnmitter and received at a receiver located in a proximity of a road in a predefined area, comprising the steps of:
- calculating a first environmental factor based on a transportation network information associated with said predefined area; and
determining said final propagation loss based on said first environmental factor.
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Accused Products
Abstract
A method for determining a final propagation loss of a signal transmitted from a transmitter (302) and received at a receiver (303) located in a proximity of a road (340) in a predefined area (350) includes calculating an environmental factor based on a transportation network information associated with predefined area (350), and determining the final propagation loss based on the environmental factor. A method of creating a data base used for calculating the propagation loss includes providing a preliminary data base, calculating a road density constant based on a road profile of predefined area (350), calculating a road constant based on a road classification profile of road (340), calculating the environmental factor by summing the road density constant, and the road constant, and modifying the preliminary data base according to the environmental factor to produce the data base.
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Citations
13 Claims
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1. A method for determining a final propagation loss of a signal transmitted from a trnmitter and received at a receiver located in a proximity of a road in a predefined area, comprising the steps of:
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calculating a first environmental factor based on a transportation network information associated with said predefined area; and
determining said final propagation loss based on said first environmental factor. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of creating a data base used for calculating a propagation loss of a signal transmitting from a transmitter, receiving by a receiver located in proximity of a road, and propagating through a propagation environment, comprising the steps of:
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providing a preliminary data base including at least, a location profile of said transmitter, a location profile of said receiver, an elevation profile of said propagation environment, and a road profile of said propagation environment including at least a road density profile and a road classification profile, defining an area surrounding location of said receiver located within said propagation environment;
calculating a road density constant based on said road profile of said area;
calculating a road constant based on said road classification profile of said road;
calculating an environmental factor by summing said road density constant, and said road constant; and
modifying said preliminary data base according to said environmental factor to produce said data base. - View Dependent Claims (9, 10, 11, 12, 13)
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Specification