[試題] 100上 林風 個人通訊服務 期末考
課程名稱︰個人通訊服務
課程性質︰選修
課程教師︰林風
開課學院：電資學院
開課系所︰資工所/網媒所
考試日期（年月日）︰2012/01/14
考試時限（分鐘）：14:20~17:20
是否需發放獎勵金：是
（如未明確表示，則不予發放）
試題 :
Potential Questions:
1.Please draw the EPS(Evolved Packet System)architecture including Long
Term Evolution(i.e.,E-UTRAM) and system Architecture Evolution(i.e.,EPC).
Note that in this figure,you need to specify the EUTRAN(e-NB),UTRAN,GERAN,
Non 3GPP IP access ,MME,Serving Gateway,HSS,PDN Gateway,SGSN and the
interfaces between each node.
2.(a)Please describe the MM(Mobility Management)context,PDP(Packet Data
protocol)context and Qos (Quality of service) Profile.
(b)
Please depict the relationship between MM context ,PDP context,and Qos profile.
3.
Please illustrate two concepts for GPRS channel management.
4.
Please depict the message flow for the combined RA/LA update procedure in
GPRS.
5.
What are the charging information stored in SGSN and GGSN,respectively.
6.
Please use the RNC terminology to illustrate the serving RNC,drift RNC , and
controlling RNC.
7.
Please depict the virtual Home Environment(VHE).
8.
Please depict the Service Architecture Concept(Open Service Architecture;OSA)
int the UMTS system.
9.
Olease use the following example to explain how to use the Exclusive OR
function (X-OR) to generate the Transmitted Signal and Retrieved Data using
Orthogonal Variable Spreading Factor(OVSF) codes in WCDMA.
Data
────────────────────────
│ 0 │ 1 │ 0 │ 1 │ ┐
──────────────────────── │
│
│
Spreading Code │
│
──────────────────────── │
│0│1│0│1│0│1│0│1│0│1│0│1│0│1│0│1│ │
──────────────────────── │
∥ X-or │ │ │
╲／ chip period │
(0.26us) │Spreading
Transmitted │
│
Signal │ ┐
┘ │
│
│
Spreading │
│
Code(Time Aligned) │
∥ │De-spreading
╲／ │
│
Retrieved │
│
Data │
┘
10.
Please depict the OVSF code tree to generate the OVSF codes with SF=8.
──
──0000 ┤
│ ──
── 00 ─┤
│ │ ──
│ ──0011 ┤
│ ──
0 ┤ ──
│ ──0101 ┤
│ │ ──
──01 ──
│ ──
──0110 ┤
──
SF=1 SF=2 SF=4 SF=8
11.
Please make a table to compare the areas controlled by MSC/VLR,SGSN,
and UTRAN for the GSM,GPRS ,and UMTS systems.
──────────────────────────────────────
│ │ MSC/VLR │ SGSN │ UTRAN │
──────────────────────────────────────
│ │ GSM │ GPRS │ UMTS │ GPRS │ UMTS │ UMTS │
──────────────────────────────────────
│Cell │ │ │ │ │ │ │
│──────────────────────────────────────
│URA │ │ │ │ │ │ │
│──────────────────────────────────────
│RA │ │ │ │ │ │ │
──────────────────────────────────────
│LA │ │ │ │ │ │ │
──────────────────────────────────────
12.
Please depict the MM state machine maintained in MS(Mobile Station) for
GPRS and UMTS.
13.
Please depict the evolution path for Cellular Packet Data Service.
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01/29 12:15, , 1F
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