CDA EVM9 Manuale Utente Scaricare il pdf (Pagina 19)

II. Design Challenges in EDGE Mobile

MMI

Protocol

Modem

DSP

micro-

controller

All of the considerations which previously applied to GPRS also apply

to EGPRS.

• Multi-slot down and uplink,

• Faster LO and PLL settling then GSM

• MIPS – Faster data rates, Power consumption & Thermal issues

• DSP decode algorithm and prediction – has to be more robust,

more MIPS (approx. factor of 4), more memory, more data retention

(Incremental Redundancy)

• New user capabilities - graphics acceleration and display

(TTP.COM) “EDGE will require up to 400 MIPS using 4 Slots.”

EGPRS design considerations (DATA)

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CDA EVM9 Manuale Utente Pagina 19