Glossary

UMD – Unacknowledged Mode Data
# A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

UMD – Unacknowledged Mode Data

In UMTS the UMD PDU (Protocol Data Unit) is used to convey sequentially numbered PDU containing RLC (Radio Link Control) SDU (Service Data Unit) data. It is used by RLC when using unacknowledged data transfer.


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