Signal Measurement Signal strength values are defined by a few different measurements which vary even more for different service modes. These measurements are as follows: 2014/08/12 - [Mobile/LTE and 5G] - [LTE] RSSI, RSRP, RSRQ, RSCP, SINR, EC/IO [LTE] RSSI, RSRP, RSRQ RSSI (Received Signal Strength Indicatior) - 단위 dBm (절대크기) - 단말에 수신되는 모든 Power의 총 크기 - 신호 세기에 인접한 채널의 간섭, 열 잡음 포함 - 2G (GSM)에서 ..

1. http://www.sharetechnote.com/html/Handbook_LTE.html2. http://4g-portal.com/3. http://howltestuffworks.blogspot.kr/4. http://www.netmanias.com/5. http://lteinwireless.blogspot.kr/6. http://www.simpletechpost.com/

http://know-lte.blogspot.kr/2016/07/cdrx-connected-mode-drx.html Connected Mode DRX (CDRX)In addition to Idle mode DRX, LTE had RRC mode DRX as well also known as Connected Mode DRX (CDRX), the purpose of both the DRX is same to conserve the battery power. During RRC connected state when there is no data transmission in either direction (UL/DL) UE goes into the DRX mode. It starts monitoring the..

EPS mobility management messagesMessage typeDirectionMessageReference0x4266to UEAttach accept8.2.10x4367to NetworkAttach complete8.2.20x4468to UEAttach reject8.2.30x4165to NetworkAttach request8.2.40x5c92to NetworkAuthentication failure8.2.50x5484to UEAuthentication reject8.2.60x5282to UEAuthentication request8.2.70x5383to NetworkAuthentication response8.2.80x64100to UECS Service notification8.2..

In an emergency situation, like Earthquake or Tsunami, degradation of quality of service may be experienced. Degradation in service availability and performance can be accepted in such situations, but mechanisms are desirable to minimize such degradation and maximize the efficiency of the remaining resources. When Domain Specific Access Control (DSAC) mechanism was introduced for UMTS, the origi..

LTE BandUplink Operating BandDownlink Operating BandDuplex ModeF(UL) Low – F(UL) HighF(DL) Low – F(DL) High11920 MHz – 1980 MHz2110 MHz – 2170 MHzFDD21850 MHz – 1910 MHz1930 MHz – 1990 MHzFDD31710 MHz – 1785 MHz1805 MHz – 1880 MHzFDD41710 MHz – 1755 MHz2110 MHz – 2155 MHzFDD5824 MHz – 849 MHz869 MHz – 894 MHzFDD6830 MHz – 840 MHz875 MHz – 885 MHzFDD72500 MHz – 2570 MHz2620 MHz – 2690 MHzFDD8880 ..