Method for designing wireless communications cell sites using uplink parameters
AssigneeAT&T Wireless Services, Inc.
InventorKirk Carter
Life of this patent
Estimating the term…
Abstract
A method for optimizing and simplifying the process of designing cell sites for mobile communications systems using uplink parameters. The method integrates a wide variety of propagation models and other utilities to provide solutions to a the most important cell design criteria. The method renders complex calculations in a usable manner.
Claims17
A method of evaluating the coverage of a geographic area serviced by a communication system using a device that accepts and manipulates cell site data and generates a parametric value comprising:
- receiving an initial set of cell site design parameters wherein the initial set of cell site design parameters includes uplink parameters comprising a power level for a mobile phone;
- calculating a maximum allowable loss of a signal between the mobile phone and a cell site using the initial set of cell site design parameters wherein the power level of the mobile phone is constant;
- choosing at least one of a plurality of propagation models;
- calculating a predicted loss of the signal by refining the initial set of cell site design parameters;
- and
- using the predicted loss to evaluate the coverage of the geographic area serviced by the communication system.
A method of selecting a set of operating parameters in the design of a cell site in a wireless telecommunications system comprising:
- collecting the set of operating parameters including a set of uplink parameters and a set of downlink parameters associated with the cell site, the set of uplink parameters comprising a power level for a mobile unit;
- determining a maximum allowable loss to close the link between the cell site and the mobile unit in a cell based on the set of uplink parameters wherein the power level of the mobile unit is constant;
- selecting at least one propagation model based on a comparison of predicted penetration loss and the set of operating parameters to determine a predicted loss;
- calculating the predicted loss by refining the set of operating parameters;
- and
- using the predicted loss in designing the cell site.
A method of selecting a set of operating parameters in the design of a cell site in a wireless telecommunications system comprising:
- identifying a proposed location for the cell site;
- collecting the set of operating parameters including a set of uplink parameters and a set of downlink parameters associated with the cell site, the set of uplink parameters comprising a power level for a mobile unit;
- determining a maximum allowable loss to close the link between the cell site and a mobile unit in a cell based on the set of uplink parameters using a spreadsheet wherein the power level of the mobile unit is constant;
- selecting a propagation model based on a comparison of a predicted penetration loss and the set of operating parameters to determine a predicted loss;
- calculating the predicted loss by refining the set of operating parameters;
- and
- using the predicted loss in designing the cell site.
A method of selecting a set of operating parameters in the design of a cell site in a wireless telecommunications system comprising:
- identifying a proposed location for the cell site;
- collecting the set of operating parameters including a set of uplink parameters and a set of downlink parameters associated with the cell site, the set of uplink parameters comprising a power level for a mobile unit;
- determining a maximum allowable loss to close the link between the cell site and a mobile unit in a cell based on the set of uplink parameters wherein the power level of the mobile unit is constant;
- selecting a propagation model based on a comparison of a predicted penetration loss and the set of operating parameters to determine a predicted loss;
- calculating the predicted loss by refining the set of operating parameters;
- varying the parameters to obtain an acceptable loss;
- and
- using the acceptable loss in designing the cell site;
- wherein the set of uplink parameters include the height of an antenna at the cell site and wherein the set of uplink parameters include the gain of an antenna at the cell site.
A method of selecting a set of operating parameters in the design of a cell site in a wireless telecommunications system comprising:
- identifying a proposed location for the cell site;
- collecting the set of operating parameters including a set of uplink parameters and a set of downlink parameters associated with the cell site, the set of uplink parameters comprising a power level for a mobile unit;
- calculating a minimum required power at the mobile unit;
- calculating a minimum required power at a base station receiver;
- determining a maximum allowable loss to close the link between the cell site and the mobile unit in a cell based on the set of uplink parameters wherein the power level of the mobile unit is constant;
- calculating a balanced downlink effective radiated power;
- selecting a propagation model based on a comparison of a predicted penetration loss and the set of operating parameters to determine a predicted loss;
- calculating the predicted loss by refining the set of operating parameters;
- and
- using the predicted loss in designing the cell site.
Dependencies are inferred from the claim text.