09 01 ra41209en50gla0 lte performance simulations

LTE FDD Performance Simulations

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•Following overheads not reduced: CRC, L2/L3 headers, IP headers

•Following overheads reduced

Synchronization, reference, PBCH, PCFICH, PHICH and 1 PDCCH symbol

•Relative overheads

Reference symbol overhead 9.5% with 2x2 MIMO

PDCCH overhead 7.1% with single symbol (two symbols with 1.4 MHz)

Other overheads <1% with 10 MHz bandwidth

UPLINK

•Following overheads not reduced: CRC, L2/L3 headers, IP headers

•Following overheads reduced

1 symbol for reference symbol

1 resource block for PUCCH

•Relative overheads

Reference symbol overhead 14.3%

PUCCH overhead 2.5%

VIRTUAL MIMO: (multi user MIMO) 2 UEs with 1Tx antenna each can communicate with an eNodeB simultaneously using the same resource blocks simultaneously ( A way for operators to increase capacity). As UEs are assumed to be physically distant from each other the resulting combined transmissions arrive at the eNodeB as multipath and can be processed in the same way as separate MIMO streams. It doubles capacity of the UL.


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09 01 ra41209en50gla0 lte performance simulations

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