lte介紹諾基亞西門子內(nèi)部培訓(xùn)資料-免費(fèi)閱讀
【正文】 120W with 2x2 MIMO and 20MHz bandwidth RF Redundancy (implicitly) Optional 4 way UL diversity Optional TMA/MHAs Ultimate capacity with 3x120W 2x2 MIMO and 20MHz bandwidth Tx1/RX1 Tx2/RX2 RX3 RX4 41 169。 Nokia Siemens Networks Charles / 20220505 For internal use Nokia Siemens Networks LTE For internal use 36 169。 Nokia Siemens Networks Charles / 20220505 Res ou r c e b l oc k s 6 15 25 50 100S ub c arr i ers 72 180 300 600 1200M o du la t io n c o din g 1 . 4 M H z 3 . 0 M H z 5 . 0 M H z 1 0 M H z 2 0 M H zQ P SK 1 /2 Sin g le s tr ea m 0 . 8 2 . 1 3 . 6 7 . 2 1 4 . 31 6 Q AM 1 /2 Sin g le s tr ea m 1 . 7 4 . 3 7 . 2 1 4 . 3 2 8 . 71 6 Q AM 3 /4 Sin g le s tr ea m 2 . 6 6 . 4 1 0 . 7 2 1 . 5 4 3 . 06 4 Q AM 3 /4 Sin g le s tr ea m 3 . 9 9 . 7 1 6 . 1 3 2 . 2 6 4 . 56 4 Q AM 4 /4 Sin g le s tr ea m 5 . 1 1 2 . 9 2 1 . 5 4 3 . 0 8 6 . 06 4 Q AM 3 /4 2 x 2 MI MO 7 . 7 1 9 . 3 3 2 . 2 6 4 . 5 1 2 9 . 06 4 Q AM 4 /4 2 x 2 MI MO 1 0 . 3 2 5 . 8 4 3 . 0 8 6 . 0 1 7 2 . 06 4 Q AM 4 /4 4 x 4 MI MO 2 0 . 6 5 1 . 6 8 6 . 0 1 7 2 . 0 3 4 3 . 9Downlink Peak Bit Rate ? 2x2 MIMO ? 64QAM ? Pilot symbols 1 out of 14 ? Reference symbol overhead % ? Result : 172 Mbps in 20 MHz and 86 Mbps in 10 MHz For internal use 28 169。 Nokia Siemens Networks Charles / 20220505 For internal use LTE Layer 2/3 For internal use 21 169。 Nokia Siemens Networks Charles / 20220505 For internal use LTE Physical Layer For internal use 14 169。 Nokia Siemens Networks Charles / 20220505 For internal use LTE Key Technology For internal use 8 169。 Nokia Siemens Networks Charles / 20220505 For internal use LTE Overview Sun Changsong LBTS Iamp。 Nokia Siemens Networks Charles / 20220505 For internal use 3GPP schedule For internal use 6 169。 aGW ? Interworking, smooth migration, service continuity and investment protection For internal use 11 169。 SCFDMA Uplink TDD Timing SCFDMA: PRB?s are grouped to bring down Peak to Average Power Ratio (PAPR) better power efficiency at the terminal MHz = 72 Tones 20 MHz = 1200 Tones Subchannels / Tones (each 15 kHz) 1 TTI = 1ms 1 PRB (Physical Resource Block) = 12 Subcarriers = 180 kHz 1 PRB = 2 Slots = 2 * ms User 1 User 2 User 3 User .. Special subframe containing guard period (switching from DL UL) For internal use 18 169。 Nokia Siemens Networks Charles / 20220505 Functionality of L2 Layer (MAC, RLC, PDCP) PDCP ? Data Transfer for User and Control Plane. ? Header Compression. ? Ciphering. ? Integrity Protection. ? Sequence Numbering. InSequence Delivery during HO. Duplicate Detection. For internal use 25 169。 Nokia Siemens Networks Charles / 20220505 For internal use Voice evolution in LTE/SAE For internal use 33 169。 Nokia Siemens Networks Charles / 20220505 3Sector RF Module Multiradio Flexi 3Sector RF Module with 3 x 70W power amplifiers delivers 3 x 60W at the antenna connector Improved OPEX, electricity consumption is 25% lower than previous generation RF 3 sectors LTE (1+1+1) with one RF Module 20MHz bandwidth Outdoor IP65 , 35 … +55 176。 Nokia Siemens Networks Charles / 20220505 For internal use Backup For internal use 43 169。 C, IP55 ? Volume: 25 liters ? Weight: 21 kg Category Performance / Processing Power (1 System Module) LTE capabilities Up to 3 cells 20MHz MIMO capabilities 2 x 2 MIMO WCDMA capabilities Up to ~ 750 Channel Elements (3+3+3) For internal use 38 169。 Nokia Siemens Networks Charles / 20220505 Frequency Reuse One in LTE ? LTE is designed
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