Contents
一、協(xié)議知識1
1.LTE幀結構及物理資源基本概念RE/RB/CCE/REG/RBG1
2.下行物理信道及物理信號的功能和占用時頻碼域位置（DL：PDSCH/PDCCH/PHICH/PCFICH/PBCH/ PSS/SSS/RS）3
2.1PBCH：Physical Broadcast Channel （物理廣播信道）4
2.2PCFICH：Physical Control Format Indicator Channel （物理控制格式指示信道）4
2.3PDCCH：Physical Downlink Control Channel （物理下行控制信道）4
2.4PDSCH：Physical Downlink Shared Channel （物理下行共享信道）5
2.5PHICH：Physical HARQ Indicator Channel （物理HARQ指示信道）6
2.6PMCH：Physical Multicast Channel （物理多播信道）- 目前不支持，無需掌握6
2.7PSS：Primary Synchronization Signal （主同步信號）6
2.8SSS：Secondary Synchronization Signal（輔同步信號）6
2.9RS：Reference Signal （參考信號）（every slot, symbol 0&4）6
3.上行物理信道及物理信號的功能和占用時頻碼域位置（UL：PUSCH/PUCCH/PRACH/SRS/DMRS）6
3.1PUSCH：Physical Uplink Shared Channel （物理上行共享信道）7
3.2PUCCH：Physical Uplink Control Channel （物理上行控制信道）7
3.3PRACH：Physical Random Access Channel （物理隨機接入信道）7
3.4DRS/DMRS：Demodulation Reference Signal （解調(diào)用參考信號）9
3.5SRS：Sounding Reference Signal （探測用參考信號）=> 與PUSCH和PUCCH無關10
4.邏輯信道、傳輸信道與物理信道的映射關系：10
4.1邏輯信道（7）10
4.2傳輸信道（DL:UL => 4:2）10
4.3物理信道（DL:UL => 6:3）10
5.MIMO technology11
6.PDSCH下行資源分配方式（Type0/1/2）；12
7.DCI Format12
•Format 0: 用于上行傳輸，PUSCH的調(diào)度13
•Format 1:用于傳輸分集，單碼字PDSCH的調(diào)度 (Used for the scheduling of single codeword PDSCH) (TM1, 2, and 7-not support)13
•Format 1A: 用于下行傳輸，單碼字PDSCH調(diào)度，下行數(shù)據(jù)觸發(fā)隨機接入過程，適用所有TM傳輸模式。=> Compact scheduling of one PDSCH codeword and random access procedure initiated by a PDCCH order (為UE分配一個非競爭隨機接入的特定preamble).13
•Format 1C: Very compact scheduling of single codeword PDSCH. (Paging, SIB, 系統(tǒng)廣播信息 ? )13
•Format 2: For MIMO (Closed-Loop)，兩碼字，下行PDSCH調(diào)度 (閉環(huán)模式，TM4，需要上報PMI信息)13
•Format 2A: For MIMO (Open-Loop)，兩碼字，下行PDSCH調(diào)度（開環(huán)模式，TM3）13
•Format 3/3A: Transmission of TPC commands for PUCCH and PUSCH with 2-bit or 1-bit power adjustments14
8.LTE相關接口的控制面和用戶面協(xié)議棧14
9.LTE相關流程15
9.1Call Setup 呼叫流程15
9.2Cell Selection 小區(qū)搜索過程15
9.3Random Access 隨機接入過程15
9.4RRC connection establish procedure RRC連接建立過程16
9.5ATTACH過程17
9.6Handover 切換過程 (6 types)17
二、軟件框架17
1.掌握BTS包含哪些模塊及其功能：BTSOM/RROM/ENBC/CELLC/UEC/TUPC/TUPU/MAC/PHY/RFSW/TRSW；17
1.1.BTS Common Software:19
•BTS Site Manager：19
•TRSW：傳輸模塊19
•RFSW：射頻模塊19
•CC&S：Common Computer & Support SW19
•HWAPI：Hardware Application Programming Interface (MCU environments)19
•DSP HWAPI：(DSP environments)19
•BTSOM：BTS level Operation & Maintenance19
•DFT：Design For Testability19
•UM：Unit Management19
1.2.LTE Specific SW:19
•LTE RROM：LTE Radio Resource Operation and Maintenance19
•LTE ENBC：LTE eNB Controller（Control function and RRM for BTS level）19
•LTE CELLC：LTE Cell Controller (Control function and RRM for CELL level)20
•LTE UEC：LTE User Equipment Controller (UE related control functions and RRM algorithms)20
•LTE TUPc20
•LTE TUPu20
•LTE MAC：L2 air interface protocols20
•LTE PHY：Baseband L1 (PHY) processing20
2.BTS硬件架構，掌握FCMD、FSPC的對應模塊及功能部署；20
3.了解BTSOM模式與OMStub模式軟件啟動過程。22
三、操作維護22
1.掌握LTE系統(tǒng)環(huán)境搭建（UE--ENB--EPC）22
2.掌握基本工具使用：TM500/Peagsus/AHTI/BTSLog/BTSiteManager/FTP22
3.能夠調(diào)試峰值速率22
四、其他LTE diary22
1.LTE interfaces:22
2.The E-UTRAN architecture:23
3.Functional Split between E-UTRAN and EPC:23
4.Layer 2 structure:24
5.OBSAI 架構24
6.OFDMA / SC-FDMA無線傳輸技術25
7.LTE Modulation Schemes:26
8.LTE DL/UL Peak Bit Rate:26
9.UE Categories:26
10.下行物理信道處理過程:26
11.RRC狀態(tài)26
12.物理測量參數(shù)以及其他（RSSI/RSRP/RSRQ/SIR/SNR/BLER…）26
13.dB與dBm的區(qū)別27
14.MCS & TBS (ref. 36.213)27
15.ACK/NACK mode29
16.CP(Cyclic Prefix)29