N26 interface is an inter-CN interface between the MME and 5GS AMF in order to enable interworking between EPC and the NG core. Support of the N26 interface in the network is optional for interworking. N26 supports a subset of the functionalities (essential for interworking) that are supported over S10. PGW-C + SMF and…
How 5G NR initial Cell Search process work? For the initial access case (idle mode), the UE should start by the cell search procedure. By using the PSS, SSS, and specific synchronization algorithms, the UE can estimate and correct the frequency and time offsets. Cell Search The UE searches for a specific frequency based…
CafeTele 5G NR QUIZ Test, Participate in the 5G NR QUIZ and feedback us about your experience with the CafeTele Quiz segment. Check some other Quiz from Cafetele https://cafetele.com/quiz-5g-nr-architecture/
After the UE has detected PSS and acquired symbol timing and initial frequency synchronization, it detects SSS which carries the physical cell identity.
Test yourself in 5G NR QUIZ? We are going to publish series of 5G NR QUIZ in upcoming days.
What is Antenna Port? An antenna port is in the 3GPP specifications an abstract concept that is a logical entity rather than a physical antenna. Each antenna port is associated with a specific set of reference signals such that the channel over which a symbol is transmitted on that antenna port can be distinguished from…
SS/PBCH Time domain Resource Allocation SSB Burst set : All SSBs are transmitted within 5 ms. Maxmimum SSB in Cell is depend upon frequency. Less than 3 GHz band maximum SSB is 4 3 GHz to 6 GHz maximum SSB is 8 greater than 6 GHz maximum SSB is 64. SS Block Periodicity : SSB…
Random Access: Random access required to do uplink synchronization between UE and eNB and gNB. There are 2 types of Random Access Procedure in 5G Network. Contention Based Random Access Contention Based Random access has four-step MSG1 ( UE to gNB or MN-eNB) MSG2 ( gNB to UE) Msg3 (UE to gNB) Ms4 (gNB to…
Main pillar of the NR is a Synchronization Signal and PBCH block (SS/PBCH block). SSB Block contains PSS 2 SSS PBCH In this article , I am going to discuss about PSS. Lets see the PCI formula below. Lets first understand LTE PSS location in sub frame. For FDD frame, PSS is allocated on symbol…
3GPP 3rd generation partnership program5G-GUTI 5G globally unique temporary identity5G-AN 5G access network5GC 5G core network5GMM 5G mobility management5GSM 5G session management5GTF 5G technical Forum5QI 5G QoS identifier AAA Authentication, authorization and acountingACK AcknowledgementAKA Authentication and key agreementAM Acknowledged modeAMBR Aggregate maximum bit rateAMC Adaptive modulation and codingAMD Acknowledge mode dataAMF Access and mobility management…