LTE1 Flashcards

Learn LTE History

1
Q

LTE stands for

A

Long Term Evolution

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2
Q

Based on the

A

GSM/EDGE and UMTS/HSPA Technologies

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3
Q

Standard was Developed by

A

3GPP or 3rd Generation Partnership Project

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4
Q

First Launched by and when

A

TeliaSonera in Oslo in Dec 14th 2009

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5
Q

First launch by ? in the USA and When

A

Verizon in 2010

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6
Q

Launched in Japan by

A

KDDI in 2010

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7
Q

ITU let whch technologies be called 4G

A

HSPA+ LTE and WiMAX

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8
Q

LTE Offers

A

Lower Latency and Higher Data Speeds

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9
Q

First Prototype by ? and When

A

Docomo in 2004

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10
Q

Standard ratified when

A

Dec 2008

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11
Q

All carriers have agreed to do

A

Migrate to LTE

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12
Q

Speak Speed of

A

299.6Mbps down and 75.4Mbps up on 4x4 Mimo

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13
Q

Latency of less than

A

5ms

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14
Q

All terminals able to handle up to xMhz

A

20

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15
Q

Terminals can move up to

A

500kmph

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16
Q

Downlink known as

A

Orthogonal Frequency Division Multiple Access

17
Q

Uplink known as

A

SC-FDMA Single Carrier

18
Q

Frequency Bands

A

1.4, 3, 5, 10, 15 and 20Mhz

19
Q

Cell size from x to y

A

Fempto to 100km

20
Q

Optimal cell size considered to be

A

5km, 30 having reasonale and 100 have acceptable.

21
Q

Support how many active users

A

200

22
Q

Simplied network side composed only of

A

eNode-B’s no RNC

23
Q

LTE only supports

A

Packet Switch with an all IP network

24
Q

Voice protocols are being design using

A

PRD IR.92. No circuit switch

25
Q

SVLTE

A

Simultanous Voice and Data on handset

26
Q

SRVCC

A

Single Radio VOice Call Continuity

27
Q

CSFB

A

Circuit Swithc Fall Back of Voice

28
Q

Frequency Band USA

A

700 and 800 and 1700 1900

29
Q

South America Band

A

2500Mhz

30
Q

Europe

A

800 900 1800 2600 Mhz

31
Q

Australia

A

1800Mhz

32
Q

TD-LTE useind in

A

China by China Mobile

33
Q

TD-LTE trialed in China describe

A
Shanghai
Guangzhou
Shenzhen
Hangshou
Nanjing
Kiamen
6 cities using 500 femptocells in early 2011.
Taipei 's Taiwan also tested
China MObile has agreed to 32 27 newtork trials.
34
Q

India tested TD-LTE in

A

Kolkata, Bangalor and Pune in April 2012

35
Q

TD-LTE spectrum

A
  1. 4 - 3.6Ghz in Australia and UK
  2. 57 to 2.62 Ghz in US and China
  3. 54 to 2.57 in Japan
  4. 3 to 2.4Ghz in India and Australia