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무선통신

(10)
UE Category
Access control (22.011) 4 Access control 4.1 PurposeUnder certain circumstances, it will be desirable to prevent UE users from making access attempts (including emergency call attempts) or responding to pages in specified areas of a PLMN. Such situations may arise during states of emergency, or where 1 of 2 or more co-located PLMNs has failed.Broadcast messages should be available on a cell by cell basis indicating the..
New LTE UE Categories: 11, 12, 13 and 14 in 3GPP Rel-12
통신사별 주파수 대역 ('13.7월, 미래전파공학연구소) LTE 주파수 bandSKT: Band 5(main), Band 3 KT: Band 8, Band 3LG: Band5(main), Band 1, Band 7(start)
E-UTRA operating bands BandName (MHz)Downlink (MHz)Bandwidth (MHz)Uplink (MHz)Duplex spacing (MHz)Equivalent UMTS bandGeographical AreaLowMiddleHighLowMiddleHighEarfcnEarfcn121002110 02140 3002170 599601920 180001950 183001980 185991901All21900 PCS1930 6001960 9001990 1199601850 186001880 189001910 19199802NAR31800+1805 12001842.5 15751880 1949751710 192001747.5 195751785 19949953All4AWS-12110 19502132.5 21752155 2399..
System Information 1. MIB(Master Information Block)- DL-SCH를 수신하기 위한 필요한 정보- Downlink 셀 대역폭에 대한 정보- 셀의 PHICH 설정에 대한 정보- SFN (System Frame Number) 2. SIB1- 단말이 해당 셀에 접속하여 서비스를 이용할 수 있는지의 여부에 관련된 정보- PLMN- Cell access related information- Scheduling information of SIBs- Value tag 3. SIB2- 단말이 셀에 접속하기 위해 필요한 정보- Access class barring information- Cell specific radio resource configuration information- MBSFN allocation..
Constants Constant Usage N310 Maximum number of consecutive "out-of-sync" indications received from lower layers N311 Maximum number of consecutive "in-sync" indications received from lower layers
Timer Timer Start Stop At expiry T300 Transmission of RRCConnectionRequest Reception of RRCConnectionSetup or RRCConnectionReject message, cell re-selection and upon abortion of connection establishment by upper layers Perform the actions as specified in 5.3.3.6 T301 Transmission of RRCConnectionReestabilshmentRequest Reception ..