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5G: Which radio access mechanism is being used in 5G ?

+1 vote
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In LTE network, OFDMA is being used for downlink and S-FDMA is for uplink direction.
What about 5G radio access mechanism ? How radio resources would be accessed by 5G handsets ?

posted Feb 17, 2018 by Harshita

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I want to understand beam forming concept and why it is considered for 5G ?

+2 votes

In the LTE network, as per my knowledge only SRB1 and SRB2 two signalling radio bearers were supported for an UE. SRB1 mainly used to RRC messages and optionally NAS messages if SRB2 (optional) is unavailable. If SRB2 is available, NAS messages are transported between UE and MME using SRB2 signalling bearer.
Now I want to know what is the use of another SRB3 ? Is it established along with SRB1 and SRB2 every time or it is optional and established only on specific cases/scenarios ?

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