GSM White Papers
UMTS - Competing Navigation System and Supplemental Communication System to GNSS
Overview The requirement in USA of providing an accuracy of 125 m for E-911 calls has driven the positioning function of mobile phones. This requirement can hardly be fulfilled without GPS. Usually, with GSM the position is determined with time difference techniques in base stations. The additional drawback is that the user has no direct access to his position (if at all). The new mobile communication standard UMTS foresees WCDMA as multiple access scheme. Therefore, similar position determination techniques as with satellite navigation systems can be applied and the mobile phone can locate itself.
| Publisher | IfEN GmbH | File Format | |
|---|---|---|---|
| Date Published | September 2000 | Downloads | 1 |
| Format | White Papers | ||
| Topics | |||
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