Aufgaben:Exercise 4.3: UMTS Access Level - Revision history

Guenter at 13:49, 15 February 2023

2023-02-15T13:49:06Z

Guenter at 15:56, 14 February 2023

2023-02-14T15:56:01Z

Guenter at 15:27, 13 February 2023

2023-02-13T15:27:29Z

Noah at 01:20, 13 February 2023

2023-02-13T01:20:45Z

Guenter at 14:56, 24 January 2023

2023-01-24T14:56:09Z

Guenter: Guenter moved page Aufgaben:Aufgabe 4.3: UMTS–Zugangsebene to Aufgaben:Exercise 4.3: UMTS Access Level

2023-01-24T14:34:25Z

Guenter moved page Aufgabe 4.3: UMTS–Zugangsebene to Exercise 4.3: UMTS Access Level

Javier: Text replacement - "”" to """

2021-05-28T14:41:55Z

Text replacement - "”" to """

Javier: Text replacement - "„" to """

2021-05-28T14:41:33Z

Text replacement - "„" to """

Javier: Text replacement - "Category:Aufgaben zu Beispiele von Nachrichtensystemen" to "Category:Examples of Communication Systems: Exercises"

2021-03-23T12:50:42Z

Text replacement - "Category:Aufgaben zu Beispiele von Nachrichtensystemen" to "Category:Examples of Communication Systems: Exercises"

Javier: Text replacement - "[[Beispiele_von_Nachrichtensystemen" to "[[Examples_of_Communication_Systems"

2020-07-09T12:51:28Z

Text replacement - "[[Beispiele_von_Nachrichtensystemen" to "[[Examples_of_Communication_Systems"

@@ Line 16: / Line 16: @@
-Hints:
+<u>Hints:</u>
 *The exercise belongs to the chapter&nbsp;  [[Examples_of_Communication_Systems/UMTS_Network_Architecture|"UMTS Network Architecture"]].
@@ Line 57: / Line 57: @@
 {{ML-Kopf}}
-'''(1)'''&nbsp; Correct is <u> Answer 3</u>: UMTS networks support:
+'''(1)'''&nbsp; Correct is the&nbsp; <u>Answer 3</u>:&nbsp; UMTS networks support:
-*Circuit switching (English: ''CS''): in this case, the radio channel is not available to other users during the entire switching period.
+*Circuit-switching&nbsp; $\rm (CS)$:&nbsp; In this case,&nbsp; the radio channel is not available to other users during the entire switching period.
-'''(3)'''&nbsp; Correct <u> Answers 1 and 2</u>:
+'''(2)'''&nbsp; Correct are the&nbsp; <u>Answers 1 and 2</u>:
-*The ''Home Location Register'' (HLR) contains all subscriber data, for example, rate model, telephone number, service-specific authorizations, and keys of a network operator's own customers.
+*As can be seen from the diagram,&nbsp; UTRAN includes various base stations,&nbsp; usually called&nbsp; "Node B"&nbsp; in UMTS,&nbsp; and various&nbsp; "Radio Network Controllers"&nbsp; in each case.
-*In contrast, the ''Visitor Location Register'' contains information about locally registered users and copies of the records from the HLR of its network operator.
-*This data is dynamic: as soon as the subscriber changes his location, this information is changed.
+*$\rm MSC$&nbsp; $($"Mobile Service Switching Center"$)$&nbsp; is a part of the core network.
 '''(4)'''&nbsp; Correct <u> Answers 1 and 3</u>:
-*The ''Gateway Mobile Switching Center'' (GMSC) is the switching center in mobile systems for forwarding data to the (circuit-switched) fixed network.
+'''(3)'''&nbsp; Correct are the&nbsp; <u>Answers 1 and 2</u>:
-*For packet data networks such as the Internet, the ''Gateway GRRS Support Node'' (GGSN) is responsible for this.
+*The&nbsp; "Home Location Register"&nbsp; $\rm HLR$&nbsp; contains all subscriber data,&nbsp; for example&nbsp; rate model,&nbsp; telephone number,&nbsp; service-specific authorizations,&nbsp; and keys of a network operator's own customers.
-*The ''Serving GRRS Support Node'' (SGSN) has similar tasks for packet switching as the MSC and the HLR have for circuit-switched transmission.
 {{ML-Fuß}}

@@ Line 6: / Line 6: @@
 [[File:EN_Bei_A_4_3_v2.png|right|frame|UMTS access network]]
 The figure shows the UMTS access network with the two main blocks:
-*${\rm UTRAN}$ (''UMTS Terrestrial Radio Access Network'', upper graphic): This monitors the radio transmission between the radio network layer and the transport layer;
+*${\rm UTRAN}$&nbsp; $($"UMTS Terrestrial Radio Access Network",&nbsp; upper graph$)$:&nbsp; This monitors the radio transmission between the radio network layer and the transport layer;
-*${\rm Core \ Network}$ (CN, lower graphic): This is responsible for switching data within the UMTS network.
@@ Line 16: / Line 17: @@
 Hints:
-*The exercise belongs to the chapter  [[Examples_of_Communication_Systems/UMTS_Network_Architecture|"UMTS Network Architecture"]].
+*The exercise belongs to the chapter&nbsp;  [[Examples_of_Communication_Systems/UMTS_Network_Architecture|"UMTS Network Architecture"]].
-*Reference is made in particular to the page [[Examples_of_Communication_Systems/UMTS_Network_Architecture#Access_level_architecture|"Access level architecture"]].
@@ Line 26: / Line 28: @@
 {Which switching types are supported by UMTS?
 |type="[]"}
-- Circuit switching only,
+- Circuit-switching only,
-- packet switching only,
+- packet-switching only,
-+ both circuit switching and packet switching.
++ both circuit-switching and packet-switching.
 {What does UTRAN include?
 |type="[]"}
 + The base stations,
-+ the ''Radio Network Controller,''
++ the&nbsp; "Radio Network Controller"&nbsp; $\rm (RNC)$,
-- the ''Mobile Service Switching Center.''
+- the&nbsp; "Mobile Service Switching Center"&nbsp; $\rm (MSC)$.
-{Which registers are required for circuit switching?
+{Which registers are required for circuit-switching?
 |type="[]"}
-+ the ''Home Location Register,''
++ the&nbsp; "Home Location Register"&nbsp; $\rm (HLR)$,
-+ the ''Visitor Location Register,''
++ the&nbsp; "Visitor Location Register"&nbsp; $\rm (VLR)$,
 - the GPRS register.
 {Which of the following statements are true?
 |type="[]"}
-+ GMSC and GGSN forward to other data networks.
++ $\rm GMSC$&nbsp; and&nbsp; $\rm GGSN$&nbsp; forward to other data networks.
-- GMSC and GGSN are active only when there is circuit switching.
+- $\rm GMSC$&nbsp; and&nbsp; $\rm GGSN$&nbsp; are active only when there is circuit-switching.
-+ SGSN has a similar function to MSC and HLR.
++ $\rm SGSN$&nbsp; has a similar function to&nbsp; $\rm MSC$&nbsp; and&nbsp; $\rm HLR$.

@@ Line 4: / Line 4: @@
 }}
-[[File:P_ID1933__Bei_A_4_3.png|right|frame|UMTS access network]]
+[[File:EN_Bei_A_4_3_v2.png|right|frame|UMTS access network]]
 The figure shows the UMTS access network with the two main blocks:
 *${\rm UTRAN}$ (''UMTS Terrestrial Radio Access Network'', upper graphic): This monitors the radio transmission between the radio network layer and the transport layer;

@@ Line 1: / Line 1: @@
-{{quiz-Header|Buchseite=Beispiele von Nachrichtensystemen/UMTS–Netzarchitektur
+{{quiz-Header|Buchseite=Examples_of_Communication_Systems/UMTS_Network_Architecture
 }}
-[[File:P_ID1933__Bei_A_4_3.png|right|frame|UMTS–Zugangsnetz]]
+[[File:P_ID1933__Bei_A_4_3.png|right|frame|UMTS access network]]
-Die Abbildung zeigt das UMTS–Zugangsnetz mit den beiden Hauptblöcken:
+The figure shows the UMTS access network with the two main blocks:
-*${\rm UTRAN}$ (''UMTS Terrestrial Radio Access Network'', obere Grafik): Diese überwacht die Funkübertragung zwischen Funknetzebene und Transportebene;
+*${\rm UTRAN}$ (''UMTS Terrestrial Radio Access Network'', upper graphic): This monitors the radio transmission between the radio network layer and the transport layer;
-*${\rm Core \ Network}$ (CN, untere Grafik): Diese ist zuständig für die Vermittlung der Daten innerhalb des UMTS–Netzes.
+*${\rm Core \ Network}$ (CN, lower graphic): This is responsible for switching data within the UMTS network.
-In der Aufgabe sollen einige der in der Abbildung verwendeten Abkürzungen erklärt werden.
+The exercise will explain some of the abbreviations used in the figure.
-''Hinweise:''
+Hints:
-*Die Aufgabe gehört zum Kapitel  [[Examples_of_Communication_Systems/UMTS–Netzarchitektur|UMTS–Netzarchitektur]].
+*The exercise belongs to the chapter  [[Examples_of_Communication_Systems/UMTS_Network_Architecture|"UMTS Network Architecture"]].
-*Bezug genommen wird insbesondere auf die Seite [[Examples_of_Communication_Systems/UMTS–Netzarchitektur#Architektur_der_Zugangsebene|Architektur der Zugangsebene]].
+*Reference is made in particular to the page [[Examples_of_Communication_Systems/UMTS_Network_Architecture#Access_level_architecture|"Access level architecture"]].
-===Fragebogen===
+===Questions===
 <quiz display=simple>
-{Welche Vermittlungsarten werden von UMTS unterstützt?
+{Which switching types are supported by UMTS?
 |type="[]"}
-- Nur Leitungsvermittlung,
+- Circuit switching only,
-- nur Paketvermittlung,
+- packet switching only,
-+ sowohl  Leitungsvermittlung als auch Paketvermittlung.
++ both circuit switching and packet switching.
-{Was beinhaltet UTRAN?
+{What does UTRAN include?
 |type="[]"}
-+ Die Basisstationen,
++ The base stations,
-+ den ''Radio Network Controller,''
++ the ''Radio Network Controller,''
-- das ''Mobile Service Switching Center''.
+- the ''Mobile Service Switching Center.''
-{Welche Register werden bei Leitungsvermittlung benötigt?
+{Which registers are required for circuit switching?
 |type="[]"}
-+ Das ''Home Location Register,''
++ the ''Home Location Register,''
-+ das ''Visitor Location Register'',
++ the ''Visitor Location Register,''
-- das GPRS–Register.
+- the GPRS register.
-{Welche der folgenden Aussagen sind zutreffend?
+{Which of the following statements are true?
 |type="[]"}
-+ GMSC und GGSN leiten zu anderen Datennetzen weiter.
++ GMSC and GGSN forward to other data networks.
-- GMSC und GGSN sind nur bei Leitungsvermittlung aktiv.
+- GMSC and GGSN are active only when there is circuit switching.
-+ SGSN hat eine ähnliche Funktion wie MSC und HLR.
++ SGSN has a similar function to MSC and HLR.
@@ Line 52: / Line 52: @@
 </quiz>
-===Musterlösung===
+===Solutions===
 {{ML-Kopf}}
-'''(1)'''&nbsp; Richtig ist die <u> Antwort 3</u>: UMTS–Netze unterstützen:
+'''(1)'''&nbsp; Correct is <u> Answer 3</u>: UMTS networks support:
-*Leitungsvermittlung (englisch: ''Circuit–Switching'', CS): Der Funkkanal steht dabei während der gesamten Vermittlungsdauer anderen Nutzern nicht zur Verfügung.
+*Circuit switching (English: ''CS''): in this case, the radio channel is not available to other users during the entire switching period.
-*Paketvermittlung (englisch: ''Packet Switching'', PS): Der Datenstrom wird im Sender in kleine Datenpakete aufgeteilt und danach zusammen mit anderen Paketen versendet. Der Kanal kann somit von mehreren Nutzern gemeinsam genutzt werden.
+*Packet switching (PS): The data stream is divided into small data packets in the transmitter and then sent together with other packets. The channel can thus be shared by several users.
-'''(2)'''&nbsp; Richtig sind die <u> Antworten 1 und 2</u>:
+'''(2)'''&nbsp; Correct <u> Answers 1 and 2</u>:
-*Wie aus der Grafik zu ersehen ist, gehören zu UTRAN verschiedene Basisstationen, die bei UMTS meist "Node B" genannt werden, sowie jeweils verschiedene ''Radio Network Controller''.
+*As can be seen from the diagram, UTRAN includes various base stations, usually called ''Node B'' in UMTS, and various ''Radio Network Controllers'' in each case.
-*Das MSC (''Mobile Service Switching Center'') ist ein Teil des Core Networks.
+*The MSC (''Mobile Service Switching Center'') is a part of the core network.
-'''(3)'''&nbsp; Richtig sind die <u> Antworten 1 und 2</u>:
+'''(3)'''&nbsp; Correct <u> Answers 1 and 2</u>:
-*Das ''Home Location Register'' (HLR) enthält alle Teilnehmerdaten, zum Beispiel Tarifmodell, Telefonnummer, dienstspezifische Berechtigungen und Schlüssel der eigenen Kunden eines Netzbetreibers.
+*The ''Home Location Register'' (HLR) contains all subscriber data, for example, rate model, telephone number, service-specific authorizations, and keys of a network operator's own customers.
-*Dagegen enthält das ''Visitor Location Register'' Informationen über lokal registrierte Nutzer und Kopien der Datensätze aus dem HLR von dessen Netzbetreiber.
+*In contrast, the ''Visitor Location Register'' contains information about locally registered users and copies of the records from the HLR of its network operator.
-*Diese Daten sind dynamisch: Sobald der Teilnehmer seinen Aufenthaltsort ändert, werden diese Informationen geändert.
+*This data is dynamic: as soon as the subscriber changes his location, this information is changed.
-*Das GPRS–Register (GR) ist Teil des HLR. Es enthält zusätzliche Teilnehmerinformationen, die aber nur bei paketvermitteler Übertragung benötigt werden.
+*The GPRS register (GR) is part of the HLR. It contains additional subscriber information, but it is only needed for packet-switched transmission.
-'''(4)'''&nbsp; Richtig sind die <u> Antworten 1 und 3</u>:
+'''(4)'''&nbsp; Correct <u> Answers 1 and 3</u>:
-*Das ''Gateway Mobile Switching Center'' (GMSC) ist die Vermittlungsstelle in Mobilfunksystemen zur Weiterleitung der Daten ins (leitungsvermittelte) Festnetz.
+*The ''Gateway Mobile Switching Center'' (GMSC) is the switching center in mobile systems for forwarding data to the (circuit-switched) fixed network.
-*Für Paketdatennetze wie z. B. dem Internet ist hierfür der ''Gateway GRRS Support Node'' (GGSN) zuständig.
+*For packet data networks such as the Internet, the ''Gateway GRRS Support Node'' (GGSN) is responsible for this.
-*Der ''Serving GRRS Support Node'' (SGSN) hat bei Paketvermittlung ähnliche Aufgaben wie das MSC und das HLR bei leitungsvermittelter Übertragung.
+*The ''Serving GRRS Support Node'' (SGSN) has similar tasks for packet switching as the MSC and the HLR have for circuit-switched transmission.
 {{ML-Fuß}}

← Older revision		Revision as of 14:56, 24 January 2023
Line 81:		Line 81:


−	[[Category:Examples of Communication Systems: Exercises\|^4.2 ~~UMTS–Netzarchitektur~~	+	[[Category:Examples of Communication Systems: Exercises\|^4.2 UMTS Network Architecture

	^]]		^]]

@@ Line 61: / Line 61: @@
 '''(2)'''&nbsp; Richtig sind die <u> Antworten 1 und 2</u>:
-*Wie aus der Grafik zu ersehen ist, gehören zu UTRAN verschiedene Basisstationen, die bei UMTS meist &bdquo;Node B&rdquo; genannt werden, sowie jeweils verschiedene ''Radio Network Controller''.
+*Wie aus der Grafik zu ersehen ist, gehören zu UTRAN verschiedene Basisstationen, die bei UMTS meist "Node B&rdquo; genannt werden, sowie jeweils verschiedene ''Radio Network Controller''.
 *Das MSC (''Mobile Service Switching Center'') ist ein Teil des Core Networks.

← Older revision		Revision as of 12:50, 23 March 2021
Line 81:		Line 81:


−	[[Category:~~Aufgaben zu Beispiele von Nachrichtensystemen~~\|^4.2 UMTS–Netzarchitektur	+	[[Category:Examples of Communication Systems: Exercises\|^4.2 UMTS–Netzarchitektur

	^]]		^]]