VAMOS or How to Potentially Double Speech Capacity in GSM

A comprehensive introduction of the VAMOS technology and its test solutions for both user equipment and base stations.

VAMOS (Voice services over Adaptive Multi-user channels on One Slot) can double the voice capacity of existing GSM mobile communication networks and is specified in 3GPP GERAN (GSM/EDGE Radio Access Network) Release 9. Supporting two voice users on a single radio resource requires enhanced test solutions, for both user equipment and base stations. Rohde & Schwarz provides comprehensive VAMOS test solutions including signal generators for receiver testing, signal analyzers for transmitter testing and radio communication testers to verify the end user equipment.

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