LTE Technical FAQ

文档发布

【资料名称】：LTE FAQ

【资料作者】：WLC

【资料日期】：2011

【资料语言】：英文

【资料格式】：PDF

【资料目录和简介】：

1 Physical Hybrid-ARQ Indicator Channel (PHICH)        2

2 PDCCH Dimensioning        4

3 PDCCH Blind Detection        6

4 PDCCH Construction        8

5 Ways to support voice in LTE        11

6 UE measurement in LTE        11

7 CQI Reporting in LTE        12

8 How to calculate peak data rate in LTE?        13

9 Sounding Reference Signal        15

10 LTE System Information: Part 1        17

11 LTE System Information: Part 2        19

12 LTE System Information: Part 3        21

13 Cell Size Configuration in Random Access Procedure (I) - Preamble Format        22

14 Cell Size Configuration in RACH (II) – Cyclic Shift        26

15 Comparison of UMTS/CDMA and LTE Coverage        29

16 Why handoff based on RSRQ is not very good?        30

17 Does LTE have a DC Carrier?        31

18 PDCCH – The Heart of the Air Interface        31

19 The Thunderbolt – A Game Changer?        32

20 Compare and contrast of UMTS and LTE Mobility        33

21 Is there a DC Sub-carrier in the Uplink too?        34

22 The HetNet - Pico-cells Make a Comeback        35

23 LTE Myth Busters        36

24 LTE Device Requirements for Verizon Wireless        38

25 The Basic Unit of Time in LTE        39

26 Finding my way around the new 3GPP site and LTE specs        40

27 PBCH: How quickly can a UE read the MIB?        41

28 PBCH: Does the MIB tell the UE how many antennas are used in the cell?        43

29 Speed Dependent Cell Reselection        44

30 MME Pool Overlap        46

31 Handover Parameters (Part 1 of 3)        47

32 Handover Parameters (Part 2 of 3)        50

33 Event A3 Parameters Setting        51

34 RS Power Reduction        53

35 RACH Preamble Planning        54

36 Cell Radius in LTE (Part 1 of 3)        56

37 Cell Radius in LTE (Part 2 of 3)        57

38 Cell Radius in LTE (Part 3 of 3)        59

39 PRACH Capacity        60

40 LTE and “The Holy Grail” of “Always On”        62

41 UE Identifiers in LTE - The Big Five        64

42 LTE and the need for Time Alignment        67

43 One Millisecond in the Life of an LTE UE        70

44 Why Should You Care about Transmission Modes?        73

45 Transmission Mode #1 ….Or is it?        76

46 Transmission Mode 3 ….The first of the 4 MIMOs!        77