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View Full Version : LTE DL MIMO4x4 4x2 2x2 RRC Message diferentiation



RFNuttapon
2018-04-10, 03:14 PM
Hi Experts

is there anyway to check if the logfile result, UE is clamping with the signal from the 4x4/4x2 or 2x2 cell from RRC message ?

rimeka
2018-04-11, 11:48 AM
MIMO can be get from Layer 1 information. I can't found it on RRC Message.

On QXDM log file, MIMO information can be get from LL1 log : 0xB126 LTE LL1 PDSCH Demapper Configuration, below is the sample.

02:41:47.666 [0xB126] LTE LL1 PDSCH Demapper Configuration
Version = 23
Version 23 {
Serving Cell ID = 337
Sub-frame Number = 1
System Frame Number = 54
PDSCH RNTIl ID = 779
PDSCH RNTI Type = C-RNTI
Number of Tx Antennas (M) = 1 antenna
Number of Rx Antennas (N) = 2 antennas
Spatial Rank = rank 1

eta004
2018-06-15, 07:39 PM
Hi rimeka

In the above M x N does this mean 1x2 SIMO

These antennas given M & N are for EnodeB?