TELCOMA Blog - 5G, 4G Articles, Tutorials and Resources

Get the latest articles, tutorials and research on 6G, 5G, 4G-LTE Technologies

5G to 6G Evolution

Release 15 NR - New Radio (NG-RAN) - Next- Generation Radio Access Network NGC - Next Generation Core SBA - Service Based Architecture Network Slicing Edge Computing Release 16 (NR-U) - NR-Unlicensed IAB - Integrated Access and Backhaul eV2X - Enhanced Vehicle-to-...

READ MORE

​Protocol stacks between the UE and the 5GC

Protocol stacks between the UE and the 5GC Control plane protocol stack The NAS protocol comprises a NAS - MM and a NAS - SM components. NAS-SM NAS-MM User plane protocol stack The PDU layer corresponds to the PDU carried between the UE and the data network over the PDU session. GTP-U...

READ MORE

​5G Services - General network procedures

5G Services - General network procedures These procedures include the following : Registration management Service request UE configuration update Access network (AN) release N2 Attribute specific UE and RAN information & compatibility 5G states The 3GPP defines the signalling...

READ MORE

5G Network Slicing - Core Network

5G Functionalities implemented in 5G Core Network Slicing The network slicing provides the possibility of isolating network resources for certain services. The user plane nodes can work on services within dedicated slices. The slice can be instantiated , updated and deleted according to NFV...

READ MORE

5G Channels

5G Channel structure PBCH : used for MIB distribution System information can be distributed via PDSCH or via PDCH , depending on the UE state. The MIB is periodically broadcasted in PBCH. A PDCCH spans only a fraction of the system bandwidth and has its own demodulation reference signals...

READ MORE

5G NR

Introduction to NR New spectrum is a target Multi-antenna technologies Multi-site coordination Access integration D2D communication Ultra lean design 5G RRC RRC inactive state In NR, evolution of new RRC state keeping S1* connection up. Need for RAN controlled sleep state 5G...

READ MORE

​Security aspects of 5G system

Security aspects of 5G system Non - standalone NR security The NSA architecture utilizes LTE as the master RAT , while NR provides a secondary RAT with UE’s connected to both radios. Evolution of the trust model The trust model in the UE is simple : there are two trust domains , the tamper...

READ MORE

5G Radio physical layer aspects Numerologies, Waveform & 5G NR Frame Structure

Physical layer aspects OFDM with CP is utilized for DL and in NR UL direction. Carrier spacing of 15 KHz , 30 KHz and 60 KHz can be used for network deployments operating in frequency bands below 6 GHz. Network distribution above 24 GHz, 60 KHz and 120 GHz subcarrier spacing can be used. NR...

READ MORE

5G Core network Protocols

Main protocols of the 5G Core network Services provided by 5G NFs The transport layer protocol is TCP Transport layer security protection is assisted with TLS Application layer protocol is HTTP/2 The serialization protocol is JSON The openAPI 3.0.0 is adopted as the interface definition...

READ MORE

​5G Spectrum

Multiple trials have already been conducted by various leading Tech companies and these trials are now showing how promising upcoming 5G technology is. However, in order to make our dream of 5G Technology become a reality, we will be requiring significant amount of spectrums which are...

READ MORE