What is SEPP?
SEPP is a network function designed to protect messages exchanged between different 5G networks (home and visited networks during roaming, for instance). It acts as a security gateway that filters and secures cross-border signalling traffic between network operators.
Find Your Focus ControlResourceSet What is Coreset? How CORESET work in 5G A control resource set (CORESET) is defined as a set of REGs under given numerology (i.e., subcarrier spacing) , Particularly, in the frequency domain, a CORESET is a set of contiguous or distributed physical resource blocks (PRBs) configured using a 6-PRB granularity, within…
5G NR is the foundational technology for the fifth-generation cellular network, offering unprecedented improvements over previous generations. It dramatically increases speeds and capacity, enabling faster internet and supporting more users simultaneously. With ultra-low latency, 5G NR enhances real-time applications like augmented reality and autonomous driving. It operates across various frequency bands, providing flexibility and wider coverage. Key features include advanced network slicing for tailored services and significant improvements in energy efficiency. This technology is not just a leap in mobile connectivity; it’s a gateway to innovative applications and services, shaping the future of digital communication.
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…
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After the UE has detected PSS and acquired symbol timing and initial frequency synchronization, it detects SSS which carries the physical cell identity.
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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…