Telecom Articles by Samir Amberkar: wp-mimo-p6

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3GPP Modem
Simulator

Test Your
Knowledge

MIMO for 3GPP L2 RAN Developer

MIMO Signaling

MIMO based DL and UL allocations use DCI formats 1_1 and 0_1 respectively. CSI reports include MIMO (feedback) related parameters. More about MIMO feedback in later articles.

This completes initial understanding of MIMO, needed to understand 3GPP 5G NR specifications.

Abbreviations

CSI
CSI-RS
DMRS
MCS
MIMO
SRS
TTI

Channel State Information
Channel State Information/Indicator Reference Signal
Demodulation Reference Signal
Modulation and Coding Scheme
Multiple Input Multiple Output
Sounding Reference Signal
Time to Transmit Interval

References

1. 3G Evolution: HSPA and LTE for Mobile Broadband
2. 5G NR: The Next Generation Wireless Access Technology
3. 3GPP TS 38.300 NR and NG-RAN Overall Description
4. 3GPP TS 38.212 Multiplexing and channel coding
5. 3GPP TS 38.214 Physical layer procedures for data


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