LTE MAC PDU is a bit string but octet aligned (i.e multiple of 8 bits) . A MAC PDU header consists of one or more subheaders. Each subheader corresponds to either a MAC SDU, MAC control element or padding. MAC PDU header can have these six elements R/R/E/LCID/F/L.
Read moreWhat media access control methods does the 5G cellular use?
A: 5G is based on OFDM (Orthogonal frequency-division multiplexing) , a method of modulating a digital signal across several different channels to reduce interference. 5G uses 5G NR air interface alongside OFDM principles. 5G also uses wider bandwidth technologies such as sub-6 GHz and mmWave.
Read moreWhat is number of layers in 5G NR?
Current 5G systems only supports maximum 16 layers .
Read moreWhat is NR physical layer?
NR physical layer design. A physical layer forms the backbone of any wireless technology . The NR physical layer has a flexible and scalable design to support diverse use cases with extreme (and sometimes contradictory) requirements, as well as a wide range of frequencies and deployment options.
Read moreWhat is physical layer in 5G?
PHY layer sits at the bottom of the 5G NR protocol stack, interfacing to MAC sublayer higher up via transport channels . It provides its services to MAC and is configured by RRC . PHY supports downlink ( gNB -to- UE ), uplink ( UE -to- gNB ) and sidelink ( UE -to- UE ) communications.5 Nis 2021
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