Method for determining the spatial distribution of the traffic v

Details Method for determining the spatial distribution of the traffic v Method for determining the spatial distribution of the traffic v

1998-02-12

2000-07-04

Urban, Edward F.

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

455456, 455446, H04Q 720

Patent

active

060850957

ABSTRACT:
For determining the spatial distribution of the traffic volume within a radio cell of a cellular mobile radio communications network, a test signal transmitter is usually installed at a test location. Each mobile station which receives the test signal, measures and reports the receive level to a computer for evaluating the test location. The test location is deemed to be suitable for the installation of a new base station if the majority of the mobile stations receives a test signal of sufficient strength. In order to provide a simple method for determining the spatial distribution, it is proposed to first subdivide the radio cell (RC1) into several segments or sections (A1, A2, A3, . . . , D4) and to associated respective reference values (e.g. reference receive levels) with these segments or sections. The reference values are calculated with the help of a Radio Communications Network Planning Tool, wherein the distances from the segment or section (C2) to at least two of the base stations (BS1, BS2) can be derived from the reference values. Subsequently, measured values (e.g. the actual receive level) which depend on the length of the radio transmission paths, are determined for each mobile station (MS). After the reference values are compared with the actual values, the respective segment or section (C2) in which the mobile station (MS) is currently located, is determined. A counter state indicating the traffic volume in this segment or section (C2) is then incremented for this segment (C2). A test signal transmitter is not required, because that section (C2) of the cell which has the highest count state, representing the highest traffic volume, has been shown to be a desirable location for a reliever base station, without having to put a test transmitter there.

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"Digital Cellular Traffic Hotspot Detector", Motorola Product Brochure, Motorola, European Cellular Infrastructure Division, Swindon, U.K.

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