5G NR Frequency Bands
FR1 (Frequency Range 1) NR operating band Uplink (UL) operating band BS receive / UE transmit FUL_low – FUL_high Downlink (DL) operating band BS transmit / UE receive FDL_low – FDL_high Duplex Mode n1 1920 MHz – 1980 MHz READ MORE
EPS Session Management Timers – UE side
EPS session management timers – UE side TIMER NUM. TIMER VALUE STATE CAUSE OF START NORMAL STOP ON THE 1st, 2nd, 3rd, 4th EXPIRY (NOTE 1) T3480 NOTE 2 NOTE 3 8s In WB-S1/CE mode, 16s PROCEDURE TRANSACTION PENDING BEARER RESOURCE ALLOCATION READ MORE
EPS Session Management Timers – Network side
EPS session management timers – network side TIMER NUM. TIMER VALUE STATE CAUSE OF START NORMAL STOP ON THE 1st, 2nd, 3rd, 4th EXPIRY (NOTE 1) T3485 NOTE 2 NOTE 3 8s In WB-S1/CE mode, 16s BEARER CONTEXT ACTIVE PENDING ACTIVATE DEFAULT EPS READ MORE
EPS Mobility Management Timers – UE side
EPS mobility management timers – UE side TIMER NUM. TIMER VALUE STATE CAUSE OF START NORMAL STOP ON EXPIRY T3402 Default 12 min. NOTE 1 EMM-DEREGISTERED EMM-REGISTERED At attach failure and the attempt counter is equal to 5. At tracking area READ MORE
EPS Mobility Management Timers – Network side
EPS mobility management timers – network side TIMER NUM. TIMER VALUE STATE CAUSE OF START NORMAL STOP ON THE 1st, 2nd, 3rd, 4th EXPIRY (NOTE 1) T3413 NOTE 8 NOTE 10 NOTE 2 EMM-REGISTERED Paging procedure for EPS services initiated Paging procedure for EPS services completed Paging procedure READ MORE
5G Technology Overview and New Radio (2018)
I prepared this document for a free training purpose on February 2018. For today March 2020 some items might not be accurate or need update. Multiple resources was used in the document, I added note below on related page. I READ MORE
5G NR Sub-carriers
5G New Radio Resources There is no too big difference in radio part with comparing LTE and it is similar to it with some changes (enhanced, major). Multiple OFDM subcarrier spacing is supported in 5G. It is called “Numerology”. In READ MORE
What is NB-IoT ?
LPWA or with longer name Low Power Wide Area is a type of telecommunication networks. It is being used for a long range communications at low bit rate among things-things, people-things. Actually we can call it as a group of telco networks, because it READ MORE
5G nədir ?
Maraq üçün Google-da “5G nədir” yazıb axtardım ki, bəlkə bizim də mobil operatorlarımız bir az yeni texnologiyalar haqqında məlumat paylaşar. Ya mən tapa bilmədim, ya da özləri rus və ya ingilis dilli mənbələrdən oxumaqla kifayətlənirlər. Ona görə də qərar verdim READ MORE