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Method for determining the position of mobile stations

Assignee: Bosch Telecom GmbH
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Filing: 1986-06-13
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Granted: —
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Expires: 2006-06-13
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Abstract

Abstract Translated from German Der Erfindung liegt ein Verfahren zugrunde zur Ortsbestim­mung von Mobilstationen (MS) innerhalb eines zellularen Mobil­funknetzes, in dem jeder Funkzelle (A3) eine mit den Mobilsta­tionen Signale austauschende Feststation (FS) zugeordnet ist, wobei von allen Feststationen, welche zu derjenigen gerade mit einer zu ortenden Mobilstation in Verbindung stehenden Feststation benachbart sind, die Empfangsqualität von Si­gnalbursts gemessen wird, die von der betreffenden Mobil­station im TDMA-Betrieb ausgesendet worden sind, und dann von den diese Signalbursts mit ausreichender Qualität emp­fangenden Nachbarfeststationen Signallaufzeitmessungen durch­geführt werden, wonach die Mobilstation an diejenige Fest­station übergeben wird, für welche die geringste Signal­laufzeit zwischen ihr und der Mobilstation ermittelt wor­den ist. Hierzu synchronisieren sich die Nachbarfeststatio­nen auf die von ihnen empfangenen Signalbursts auf und füh­ren dann in anderen Frequenzbändern, als denen für die Über­tragung der genannten Signalbursts vorgesehenen Frequenz­bändern die Signallaufzeitmessung durch. The invention is based on a method for determining the location of mobile stations (MS) within a cellular mobile radio network, in which each radio cell (A3) is assigned a base station (FS) which exchanges signals with the mobile stations, all of the base stations being connected to the one with one are adjacent to the locating mobile station in the connected base station, the reception quality of signal bursts measured by the relevant mobile station in TDMA mode is measured, and then signal delay measurements are carried out by the neighboring base stations receiving these signal bursts with sufficient quality, after which the mobile station is sent to that base station is transferred, for which the lowest signal transit time between it and the mobile station has been determined. For this purpose, the neighboring base stations synchronize themselves with the signal bursts received by them and then carry out the signal propagation time measurement in frequency bands other than the frequency bands provided for the transmission of the signal bursts mentioned.

Inventors

  • 👤 Josef Dipl.-Ing. Sperlich

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-09 08:05
CPC Classifications
H; H04; H04W; H04W64/00; H04B; H04B7/00; H04B7/24; H04B7/26; H04B7/2662; H04B7/2671; H04B7/2678; H04B7/2684; H04W56/00; H04W56/0055; H04W56/0065; H04W56/009; H04W56/0095

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