4Main Radio Interface Related System Procedures
Jorma Kaikkonen1, Sami Hakola1, Emad Farag2, Mihai Enescu1, Claes Tidestav3, Juha Karjalainen1, Timo Koskela1, Sebastian Faxér3, Dawid Koziol4, and Helka-Liina Määttänen5
1Nokia Bell Labs, Finland
2Nokia Bell Labs, USA
3Ericsson, Sweden
4Nokia Bell Labs, Poland
5Ericsson, Finland
4.1 Initial Access (Jorma Kaikkonen, Sami Hakola, Nokia Bell Labs, Finland, Emad Farag, Nokia Bell Labs, USA)
4.1.1 Cell Search
In cell search procedure the User Equipment (UE) acquires the time and frequency synchronization to a cell, and determines the physical layer cell ID. The UE does this by searching for primary synchronization signal (PSS) and secondary synchronization signal (SSS) and decoding Physical Broadcast Channel (PBCH) carried by synchronization signal (SS)/PBCH block, described in Section 3.5.
Similar to other radio access systems, the UE looks for the SSs in predefined frequency locations. For initial cell selection purposes, the valid frequency locations for the SS/PBCH blocks are determined by synchronization raster given in [28, 31]. UE uses these locations to look for SS/PBCH blocks and system acquisition when it has not been provided any other information regarding frequency location of the SS/PBCH blocks. For both frequency ranges, FR1 and FR2, a global synchronization raster is defined via global synchronization channel number (GSCN), which corresponds to a given frequency position of the SS/PBCH block. The mapping between GSCN ...
Get 5G New Radio now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
