[Question]How do i get the max thorical LTE DL throughput on ATOLL 2.8

[Xcelsium]

Well, i'm wondering if someone can help me on this sim, i have created a LTE transmitter on ATOLL 2.8 with the following parameters:

• Ciclix Prefix: Normal
• PDDCH OH: 1 SD
• Swithching point: 1 frame
• Frecuency Band: 2110 (20 Mhz)
• Channel: allocated
• Antena Ports: 4 TX 4 RX
• Frame Config: D-UDD DDDDD
• Diverisity DL:AMS
• Service: FTP
• FTP:100% Scaling Factor
• Terminal:
• Min Pow: 23 dBm Max:23 dBm
• Noise: 7 dB
• Gain antenna: 2 dbi
• Diversity: MIMO
• antenna: tx:4 rx:4
• Simulation over DTM Maps only.

With those data i get a max DL troughput of 270 Mbps, and i want to reach the theorical limit 300 Mbs, If anyone can help me out, if i missing another parameter to raise the troughput please tell me , Thanks for the help.

[ahmedtaha]

Well, i'm wondering if someone can help me on this sim, i have created a LTE transmitter on ATOLL 2.8 with the following parameters:

• Ciclix Prefix: Normal
• PDDCH OH: 1 SD
• Swithching point: 1 frame
• Frecuency Band: 2110 (20 Mhz)
• Channel: allocated
• Antena Ports: 4 TX 4 RX
• Frame Config: D-UDD DDDDD
• Diverisity DL:AMS
• Service: FTP
• FTP:100% Scaling Factor
• Terminal:
• Min Pow: 23 dBm Max:23 dBm
• Noise: 7 dB
• Gain antenna: 2 dbi
• Diversity: MIMO
• antenna: tx:4 rx:4
• Simulation over DTM Maps only.

With those data i get a max DL troughput of 270 Mbps, and i want to reach the theorical limit 300 Mbs, If anyone can help me out, if i missing another parameter to raise the troughput please tell me , Thanks for the help.

hi Xcelsium

i create this Excel file for you to explain how can calculate Data rate of LTE

[ahmedtaha]

300 Mbps is a theoretical date rate for LTE you can reach this data if all RBs assign to PDSCH

((100RB x 12subcarriers x 7 symbols x 2 slot time x 6 bit (64QAM) x 3/4 code rate ) / 1msec ) x 4 (approximately 4x4 MIMO) = 302 Mbps

but actually there are a NO. of Subcarriers assign to control channel like PDCCH and other channels

approximately from (69%-83%) of Subcarries assign for PDSCH plz look to this table below (if i wrong ..?? correct to me)

[rajat]

thanks a lot for uploading this useful document