UE identification provided in the DL data

Specs & Protocol Testing
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What are UE identification provided in the DL data to make sure that the data is scheduled for respective UE only? So that other UEs will not read the same DCI and PDSCH?

RNTI:
Definition: RNTI stands for Radio Network Temporary Identifier.
RNTI is used to indentify one specific radio channel from other radio channel and one UE from another UE.

Question
Now: You will get some doubt is that: who issues these RNTI?
Answer: Network issues RNTI’s to differentiate the Users.

Question:
What are the types of RNTI’s we used in LTE?
Answer :

  • P-RNTI : It stands for Paging RNTI. Used for Paging Message.
  • SI-RNTI : It stands for System Information RNTI. Used for transmission of SIB messages
  • RA-RNTI : It stands for Random Access RNTI. Used for PRACH Response.
  • T-CRNTI : It stands for Temporary C-RNTI. Mainly used during RACH.
  • C-RNTI : It stands for Cell RNTI. Used for the transmission to a specific UE after RACH.
  • SPS-C-RNTI : It stands for Semi persistance Scheduling C-RNTI
  • NOTE: We have other RNTI’s as well but I am not explaining here.

Question:
Now answer for the friend @.Rajendra Bhupathi Asked question is ?
Answer:
At the time of initial UE registration with the network,Network will assign the sequences of the RNTI’s for each and every User,that are first will assign P-RNTI,SI-RNTI,RA-RNTI,T-CRNTI,C-RNTI.

C-RNTI :
It is a unique identification used for identifying RRC Connection and scheduling which is dedicated to a particular UE. The gNB assigns different C-RNTI values to different UEs. The gNB uses C-RNTI to allocate a UE with uplink grants, downlink assignments, etc. C-RNTI is used by gNB to differentiate uplink transmissions (e.g. PUSCH, PUCCH) of a UE from others.

LinkedIn: Puliraju Mulinti on LinkedIn: #all #rnti #5g #4glte