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In Dual connectivity Does modem use two RF unit ?

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In Dual connectivity Does modem use two RF unit or single RF processor to process signal from two cell parallely.

posted Jul 29, 2018 by Jaganathan

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1 Answer

+1 vote

In Eutra NR DC, two RF units process RF signal for MCG and SCG. Signalling is performed over mcg and 2nd rrc reconfig after attach complete provides for scg setup, which initiates rach over 2nd RF unit that is for NR frequency.

answer Jul 29, 2018 by Saurabh Bhardwaj
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+1 vote

How was deployment scenario for Dual Connectivity. When MeNB should trigger SCG bearer or split bearer?

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Could any give more insight on this? How exactly Dual SIM mobile uses Modem stack and how attach will happen?

+2 votes

While digging into 5G NR dual connectivity, ( and as you are aware that it is based on LTE dual connectivity). I want to learn a bit about how LTE put the foundation for this feature to come towards 5g.

I want to read the LTE architecture specs related to dual connectivity.
I donot have much RAN background in LTE. Could somebody from this background give me some quick hints, to look into which 3gpp TS or TR to understand some basics.

Btw there is 3GPP TS 36.401 doesnot have much info it looks like.

+1 vote

As i know single SENB can have mltiple cells but can i have multiple SENB?

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