US 12,757,159 B2Granted

Microwave path search using segmented buffer expansions between sites

AssigneeWireless Applications Corp.

InventorsEric Wills, Abdelelah Salama

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Abstract

A microwave path search tool for finding radio path trails between a source site at a first geographic location and a target site at a second geographic location, wherein radio paths constituting a radio path trail meet certain radio link design goals subject to certain design constraints. The tool receives information relating to the source and target sites and sites within a buffer region around the source and target sites. The tool also receives path profile computation information such as data representing the terrain and clutter in the buffer region. The tool uses this information to analyze potential radio paths and identify radio paths forming a radio link between the source and target sites that best meets the radio link design goals. The tool can also perform pre-run analysis and use incrementally increasing linear or segmented expansions of search areas within the buffer region to facilitate the radio path search.

Claims20

Dependent claims

At least one computer-readable storage medium, excluding transitory signals and carrying instructions, which, when executed by at least one data processor of a system for finding a radio path trail between a source site at a first geographic location and a target site at a second geographic location, cause the system to:

receive an indication of properties of the source site and the target site;
receive an indication of a buffer area around the source site and the target site;
receive an indication of properties of one or more sites within the buffer area;
receive an indication of one or more design constraints,
wherein the one or more design constraints comprise a minimum distance and a maximum distance between two contiguous sites of the radio path trail;
receive an indication of one or more design goals;
determine an initial segment of the buffer area around the source site,
wherein the initial segment comprises a first area defined by a first radial distance around the source site, and a second area defined by a second distance from a line connecting the source site and the target site,
wherein the second area is further defined by the maximum distance;
generate, based on the one or more design constraints, a first set of radio path profiles for a set of communication paths between the source site and each site in one or more first intermediate sites in the initial segment,
wherein each of the one or more first intermediate sites is different from the source site and the target site;
generate, based on the first set of radio path profiles, a first set of radio paths traversing at least one of the one or more first intermediate sites in the initial segment,
wherein the first set of radio paths comprises radio path profiles, from the first set of radio path profiles, that meet the one or more design goals;
determine a last site in the first set of radio paths,
wherein the last site comprises a distance to the target site that is smaller than other sites in the first set of radio paths, and
wherein the radio path trail comprises only the first set of radio paths when the last site is the target site;
and
display a visual representation of the radio path trail on a display of a user interface.

15 more elements

A method for finding a radio path trail between a source site at a first geographic location and a target site at a second geographic location, the method comprising:

receiving an indication of properties of the source site and the target site;
receiving an indication of a buffer area around the source site and the target site;
receiving an indication of properties of one or more sites within the buffer area;
receiving an indication of one or more design constraints
wherein the one or more design constraints are based on a set of physical characteristics of corresponding structures at the one or more sites within the buffer area;
receiving an indication of one or more design goals;
determining an initial segment area of the buffer area around the source site, wherein the initial segment area is smaller than the buffer area;
generating based on the one or more design constraints, a first set of radio paths traversing one or more first intermediate sites in the initial segment area,
wherein the first set of radio paths comprises radio path profiles that meet the one or more design goals, and
wherein each of the one or more first intermediate sites is different from the source site and the target site;
determining, based on the first set of radio paths, the radio path trail when a last site of the first set of radio paths is the target site;
and
displaying a visual representation of the radio path trail on a display of a user interface.

10 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/175,727Filed 28 Feb 2023 · us provisional application
Priority: 15 Aug 2022
Published: US 2024/0057023 A115 Feb 2024
Granted: 6 Oct 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

H04W 64/006
Locating users or terminals or network equipment for network management purposes, e.g. mobility management: with additional information…
H04B 17/27
Of receivers: for locating or positioning the transmitter
H04B 17/391
Of propagation channels: modelling the propagation channel
H04B 17/3912
Modelling the propagation channel: simulation models, e.g. distribution of spectral power density or received signal strength indicator [RSSI] for…