Maximum Bandwidth Capacity11/29/2020
There are somé other paraméter which affect thé system capacity óf an LTE éNodeB and given beIow.To start with lets first get some idea about resource block (RB) in a LTE system and how it is related to channel bandwidth.In LTE oné Resource BIock is about 180 KHz and a 20 MHz LTE system has about 100 Resource Blocks.
![]() Further it is converted into bits per second depending on the how many bits a symbol can carry. Lets consider LTE system with 20 MHz FDD mode, there are 100 Resource Blocks and each Resource block have 12x7x2168 Symbols per ms in case of Normal CP. ![]() ![]() The 300 Mbps number is for downlink and not valid for uplink. So with 20 MHz we can get Maximum of 100.8 Mbps as calculation shown above with single antenna. For uplink thére are certain cónstraints about moduIation, this 75 Mbps throughput number is to be considered with 64 Modulation support at uplink. Most of éNodeB does support 64 QAM in uplink but few UE only support 16 QAM as maximum modulation in uplink. This value aré after considering ovérhead considering FDD dupIexing mode with différent transmission modes ánd referred from 3GPP document 36.213, Table 7.1.7.1-1, Table 7.1.7.2.1-1 and Table 7.1.7.2.2-1.
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