CDA EVM9 Uživatelský manuál stáhnout pdf (Strana 14)

EDGE :Packet Handling

EDGE: Packet Handling

•Another improvement that has been made to the EDGE

standard is the ability to retransmit a packet that has not

been decoded properly with a more robust coding scheme.

•For GPRS, re-segmentation is not possible.

•Once packets have been sent,they must be retransmitted

using the original coding scheme even if the radio

environment has changed.

•This has a significant impact on the throughput,as the

algorithm decides the level of confidence with which the link

adaptation (LA) must work.

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CDA EVM9 Uživatelský manuál Strana 14