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LDCE Wireless > 3G Mobile network & HSPA > Flashcards

3G Mobile network & HSPA Flashcards

1
Q

1G referes to
1) AMPS
2) IS-95
3) IMT-2000

A

AMPS (advanced mobile phone service)

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2
Q

AMPS used
1) FDMA
2) TDMA
3) CDMA

A

FDMA

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3
Q

? IS-95 used
1) FDMA
2) TDMA
3) CDMA

A

CDMA

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4
Q

2G referes to
1) AMPS
2) IS-95
3) IMT-2000

A

IS-95

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5
Q

3G features
1) Variable bit rate to offer bandwidth on demand
2) Multiplexing of services with different Qos requirements on a single connection
3) Co-existence with different systems and inter-system handovers for coverage enhancement
sand loading balancing
4) All

A

All

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6
Q

3G features
1) Bit rates up to 2Mbps
2) Uplink and downlink asymmetry
3) High spectrum efficiency
4) Co-existence of FDD and TDD modes

A

All

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7
Q

________ is the standard for European 3G based WCDMA systems as preferred solution for countries with 2G
1) IMT
2) IMT-2000
3) UMTS
4) IMT-Advanced

A

UMTS (Universal Mobile Telecommunication System)

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8
Q

GSM used
1) FDMA
2) TDMA
3) CDMA

A

TDMA

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9
Q

3GPP Release 5 introduced
1) IP Multimedia Subsystem (IMS)
2) all IP-Core Network

A

IP Multimedia Subsystem (IMS)

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10
Q

___________ unify and perform all IP based multiservice i.e. a combination of more than one service on a physical channel to a user e.g. voice & video or image.
1) SS7
2) IMS
3) GPRS

A

IP Multimedia Subsystem (IMS)

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11
Q

3GPP Release 4 introduced
1) IP Multimedia Subsystem (IMS)
2) Next Generation Network (NGN) architecture)

A

Next Generation Network (NGN) architecture

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12
Q

IMT–2000 system proposed by the ITU
1) UMTS
2) CDMA2000
3) both
4) none

A

both

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13
Q

WCDMA Radio Access
Network consists of
1) Radio Base Station (NodeB)
2) Radio Network Controller (RNC)
3) both

A

both

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14
Q

The Radio Base Station handles the radio transmission and reception to/from the handset over
the radio interface ___
1) Iu
2) Uu
3) Iur

A

Uu

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15
Q

RNC connects the WCDMA Radio Access Network to the core network via the ____ interface.
1) Iu
2) Uu
3) Iur

A

Iu

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16
Q

roles for the RNC include
1) to serve
2) to control
3) both

A

both

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17
Q

_____has overall control of the handset that is connected to WCDMA RAN
1) Serving RNC
2) Controlling RNC
3) both

A

Serving RNC

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18
Q

______controls the connection on the Iu interface for the handset and it terminates several protocols in the contact between the handset and the WCDMA RAN
1) Serving RNC
2) Controlling RNC
3) both

A

Serving RNC

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19
Q

has the overall control of a particular set of cells, and their associated base stations.
1) Serving RNC
2) Controlling RNC
3) both

A

Controlling RNC

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20
Q

The Serving RNC may ask the Controlling RNC for resources. This request is made via the ___ interface
1) Iu
2) Uu
3) Iur

A

Iur

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21
Q

The Serving RNC may ask the Controlling RNC for resources. Then ____ said to be a Drift RNC
1) Serving RNC
2) Controlling RNC
3) both

A

Controlling RNC

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22
Q

Radio Access Bearers quality class defined by 3GPP for voice telephony
1) Conversational
2) Streaming
3) Interactive
4) Background

A

Conversational

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23
Q

Radio Access Bearers quality class defined by 3GPP for file transfer
1) Conversational
2) Streaming
3) Interactive
4) Background

A

Background

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24
Q

Radio Access Bearers quality class defined by 3GPP for watching a video clip
1) Conversational
2) Streaming
3) Interactive
4) Background

A

Streaming

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25
Q

Radio Access Bearers quality class defined by 3GPP for web surfing
1) Conversational
2) Streaming
3) Interactive
4) Background

A

Interactive

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26
Q

? which has strict ordering
1) Conversational
2) Streaming
3) Interactive
4) Background

A

1 and 2

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27
Q

which has no delay requirement
1) Conversational
2) Streaming
3) Interactive
4) Background

A

Background

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28
Q

UMTS Core Network elements can be categorised into two domains ________ and ___________

A

Circuit switched elements and Packet switched elements

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29
Q

Which elements are primarily based on the GSM network entities
1) Circuit switched elements
2) Packet switched elements

A

Circuit switched elements

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30
Q

SGSN, GGSN stand for

A

Serving GPRS Support Node
Gateway GPRS Support Node

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31
Q

When a UE attaches to the Packet Switched domain of the UMTS Core Network, the ___ generates Mobility Management information based on the mobile’s current location
1) SGSN
2) GGSN
3) BG

A

SGSN: Serving GPRS Support Node

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32
Q

The ____ is able to manage its elements
within the network only by communicating with other areas of the network
1) SGSN
2) GGSN
3) BG

A

SGSN: Serving GPRS Support Node

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33
Q

_______ is responsible billing
1) SGSN
2) GGSN
3) BG

A

SGSN: Serving GPRS Support Node

34
Q

manages the data sessions providing the required quality of service and also managing PDP (Packet data Protocol)
1) SGSN
2) GGSN
3) BG

A

SGSN: Serving GPRS Support Node

35
Q

_______handles inter-working between the UMTS packet switched network and external packet switched
networks
1) SGSN
2) GGSN
3) BG

A

GGSN: Gateway GPRS Support Node

36
Q

________ provides connectivity, and interworking and roaming capabilities between two different PLMNs
1) SGSN
2) GGSN
3) BG

A

BG (BORDER GATEWAY)

37
Q

___ is the entity that decides whether a given UE equipment may be allowed onto the network
1) VLR
2) HLR
3) EIR
4) AUC

A

EIR (EQUIPMENT IDENTITY REGISTER)

38
Q

contains the secret key also contained in the user’s USIM
1) VLR
2) HLR
3) EIR
4) AUC

A

AUC (AUTHENTICATION CENTRE)

39
Q

SMS MSC belongs to
1) circuit switched element
2) packet switched element
3) shared element

A

shared element

40
Q

SGSN, GGSN, BG belong to
1) circuit switched elements
2) packet switched elements
3) shared elements

A

packet switched element

41
Q

HLR, VLR, EIR, AUC belong to
1) circuit switched elements
2) packet switched elements
3) shared elements

A

shared elements

42
Q

MSC, GMSC belong to
1) circuit switched elements
2) packet switched elements
3) shared elements

A

circuit switched elements

43
Q

the mobile switching centre is split in two in
1) release 99
2) release 4
3) release 5

A

release 4

44
Q

The home subscriber server (HSS) was also introduced in release5, and combines the functions of the
1) HLR and EIR
2) HLR and AuC
3) VLR and AuC

A

HLR and AuC

45
Q

______ introduced in release5 gives a more flexible architecture in which each RNC can be connected to multiple MSCs and multiple SGSNs
1) IuFlex
2) UuFlex
3) IurFlex

A

IuFlex

46
Q

3GPP Release 6 introduced
1) IP Multimedia Subsystem (IMS)
2) Next Generation Network (NGN) architecture)
3) IuFlex
4) WLAN

A

WLAN

47
Q

________ services are supplied either by the IMS, or by data servers that are controlled by the network operator
and directly connected to a GGSN
1) IuFlex
2) WLAN

A

WLAN

48
Q

WAG and PDG belongs to
1) IP Multimedia Subsystem (IMS)
2) Next Generation Network (NGN) architecture)
3) IuFlex
4) WLAN

A

WLAN
WLAN access gateway (WAG)
packet data gateway (PDG)

49
Q

3GPP release 5 includes
1) HSDPA
2) HSUPA
3) MIMO

A

HSDPA

50
Q

3GPP release 6 includes
1) HSDPA
2) HSUPA
3) MIMO

A

HSUPA

51
Q

3GPP release 7 includes
1) HSDPA
2) HSUPA
3) MIMO

A

MIMO and CPC

52
Q

In 3GPP release 6. MBMS stands for

A

Multimedia Broadcast Multicast Services
(providing improved broadcast services like Mobile TV)

53
Q

CPC in 3GPP release 7 stands for

A

Continuous Packet Connectivity

54
Q

3GPP release 7 support
1) 64-QAM in the downlink and 16-QAM in the uplink
2) 16-QAM in the downlink and 64-QAM in the uplink
3) 16-QAM in the downlink and 16-QAM in the uplink
4) 64-QAM in the downlink and 64-QAM in the uplink

A

16-QAM in the downlink and 64-QAM in the uplink

55
Q

3GPP release 7 support
1) MIMO
2) Higher order modulation
3) either 1 or 2
4) both

A

either 1 or 2

56
Q

3GPP release 8 support
1) MIMO/dual carrier operation
2) Higher order modulation
3) either 1 or 2
4) both

A

both

57
Q

?? 3GPP release 9 support
1) 2x2 MIMO
2) 4x4 MIMO

A
58
Q

3GPP release 10 support
1) 2 carriers
2) 4 carriers

A

4 carriers

59
Q

3GPP release 11 support
1) 16QAM in downlink
2) 64QAM in downlink

A

64QAM in downlink

60
Q

3GPP release 11 support
1) 2x2 MIMO
2) 4x4 MIMO

A

4x4 MIMO

61
Q

HSPA stands for

A

High Speed Packet Access

62
Q

3G HSPA downlink modulation
1) 16QAM
2) QPSK

A

16QAM

63
Q

3G HSPA uplink modulation
1) 16QAM
2) QPSK

A

QPSK

64
Q

3G HSPA can be rolled out by
1) software upgradation
2) hardware upgradation

A

software upgradation

65
Q

HSDPA was introduced in
1) release 99
2) release 4
3) release 5

A

release 99

66
Q

HSDPA uses new channels
HS-DSCH
HS-SCCH
HS-DPCCH
these stand for

A

High Speed Downlink Shared Channel (HS-DSCH)
High Speed Signaling Control Channel(HS-SCCH)
High Speed Dedicated Physical Control Channel (HS-DPCCH)

67
Q

W-CDMA uses
1) only QPSK
2) only QAM
3) QAM and QPSK

A

only QPSK

68
Q

HSDPA uses
1) only QPSK
2) only QAM
3) QAM and QPSK

A

QAM and QPSK
16-QAM which can carry a higher data rate, but is less resilient to noise is also used when the link is sufficiently robust.

69
Q

16-QAM which can carry a higher data rate, but is less resilient to noise is also used when ________
1) the link is sufficiently robust
2) the link is sufficiently unstable
3) the link is sufficiently noisy

A

the link is sufficiently robust
(this is determined by analysing parameters fed back by MS). These include details of the channel
physical layer conditions, power control, Quality of Service (QoS), and information specific to HSDPA

70
Q

HARQ stands for

A

Hybrid Automatic Repeat Request

71
Q

______eliminates the need for a variable spreading factor
1) QAM modulation
2) Improved scheduling
3) Fast HARQ
4) Additional channels

A

Fast HARQ
Hybrid Automatic Repeat Request

72
Q

HSUPA introduces a TTI of ___ ms, although a __ms TTI was
originally used
1) 5ms, 10ms
2) 2ms, 5ms
3) 2ms, 10ms

A

2ms, 10ms

73
Q

Higher order modulation was introduced in Release ___ of the 3GPP standards when 64QAM was allowed
1) Release 5
2) Release 6
3) Release 7
4) Release 8

A

Release 7

74
Q

Hybrid ARQ is employed in
1) HSDPA only
2) HSUPA only
3) both
4) none

A

both

75
Q

packet scheduling is employed in
1) HSDPA only
2) HSUPA only
3) both
4) none

A

both

76
Q

it is possible to increase the order of the modulation to enable higher throughput rates if signal levels are
sufficiently ___
1) high
2) low

A

high

77
Q

EVOLVED HSPA / HSPA+ has ______ protocol enhancements (T/F)
1) Layer 2
2) Layer 3

A

Layer 2

78
Q

UMTS:W-CDMA = LTE:______

A

OFDM

79
Q

With 5MHz and 10MHz bandwidth ______ has more data rate
1) HSPA+
2) LTE

A

HSPA+

80
Q

HSDPA stands for
1) High Speed Data Packet Access
2) High Speed Downlink Packet Access
3) High Speed Data Protocol Access
4) High Speed Downlink Protocol Access

A

High Speed Downlink Packet Access

LDCE Wireless (15 decks)

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