Computer-implemented microcell prediction modeling with terrain enhancement
First Claim
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1. A computer-implemented method for modeling a wireless communications system comprising a transmitter having an antenna and a receiver having an antenna located at a distant location from the transmitter antenna, comprising the steps of:
- (a) collecting data concerning the operation of the transmitter and receiver, and storing the collected data in a computer, wherein the data represents;
a transmitter power (Pt), a transmitter antenna gain (Gt), and a receiver antenna gain (Gr);
(b) computing a strength of a signal received at the receiver antenna from the transmitter antenna using the stored data, wherein the strength of the signal is computed by determining a line of sight signal strength between the transmitter antenna and the receiver antenna, determining effects on the signal strength from one or more obstructions between the transmitter antenna and the receiver antenna, and modifying the line of sight signal strength using the determined effects; and
(c) outputting one or more reports from the computer representing the modified line of sight signal strength, wherein the reports are used in operating the wireless communications system.
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Abstract
A computer-implemented modeling tool for cellular telephone systems predicts signal strength under real conditions by considering the effects of terrain and man-made structures on transmitted signals. The modeling tool gives more accurate predictions under line of sight conditions, when obstructions occur due to terrain contours, and when mobile or transmitter antennas are blocked by buildings or other structures.
76 Citations
15 Claims
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1. A computer-implemented method for modeling a wireless communications system comprising a transmitter having an antenna and a receiver having an antenna located at a distant location from the transmitter antenna, comprising the steps of:
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(a) collecting data concerning the operation of the transmitter and receiver, and storing the collected data in a computer, wherein the data represents;
a transmitter power (Pt), a transmitter antenna gain (Gt), and a receiver antenna gain (Gr);(b) computing a strength of a signal received at the receiver antenna from the transmitter antenna using the stored data, wherein the strength of the signal is computed by determining a line of sight signal strength between the transmitter antenna and the receiver antenna, determining effects on the signal strength from one or more obstructions between the transmitter antenna and the receiver antenna, and modifying the line of sight signal strength using the determined effects; and (c) outputting one or more reports from the computer representing the modified line of sight signal strength, wherein the reports are used in operating the wireless communications system. - View Dependent Claims (2, 3, 4, 5)
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6. An article of manufacture comprising a program storage medium readable by a computer having a memory, the medium tangibly embodying one or more programs of instructions executable by the computer to perform method steps for synchronizing elements of an object-oriented system, the method comprising the steps of:
- (a) collecting data concerning the operation of the transmitter and receiver, and storing the collected data in a computer, wherein the data represents;
a transmitter power (Pt), a transmitter antenna gain (Gt), and a receiver antenna gain (Gr);(b) computing a strength of a signal received at the receiver antenna from the transmitter antenna using the stored data, wherein the strength of the signal is computed by determining a line of sight signal strength between the transmitter antenna and the receiver antenna, determining effects on the signal strength from one or more obstructions between the transmitter antenna and the receiver antenna, and modifying the line of sight signal strength using the determined effects; and (c) outputting one or more reports from the computer representing the modified line of sight signal strength, wherein the reports are used in operating the wireless communications system. - View Dependent Claims (7, 8, 9, 10)
- (a) collecting data concerning the operation of the transmitter and receiver, and storing the collected data in a computer, wherein the data represents;
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11. A computerized apparatus for synchronizing elements of an object-oriented system, comprising:
- (a) a computer having a memory;
(b) means, performed by the computer, for collecting data concerning the operation of the transmitter and receiver, and storing the collected data in a computer, wherein the data represents;
a transmitter power (Pt), a transmitter antenna gain (Gt), and a receiver antenna gain (Gr);(c) means, performed by the computer, for computing a strength of a signal received at the receiver antenna from the transmitter antenna using the stored data, wherein the strength of the signal is computed by determining a line of sight signal strength between the transmitter antenna and the receiver antenna, determining effects on the signal strength from one or more obstructions between the transmitter antenna and the receiver antenna, and modifying the line of sight signal strength using the determined effects; and (d) means, performed by the computer, for outputting one or more reports from the computer representing the modified line of sight signal strength, wherein the reports are used in operating the wireless communications system. - View Dependent Claims (12, 13, 14, 15)
- (a) a computer having a memory;
Specification