Aufgaben:Exercise 3.5Z: GSM Network Components - Revision history

Javier: Text replacement - "Category:Exercises for Mobile Communications" to "Category:Mobile Communications: Exercises"

2021-03-23T12:37:43Z

Text replacement - "Category:Exercises for Mobile Communications" to "Category:Mobile Communications: Exercises"

Guenter at 13:23, 23 January 2021

2021-01-23T13:23:51Z

Guenter at 13:11, 23 January 2021

2021-01-23T13:11:58Z

Javier: Text replacement - "===Sample Solution===" to "===Solution==="

2020-12-15T14:10:45Z

Text replacement - "===Sample Solution===" to "===Solution==="

Javier: Text replacement - "Mobile Kommunikation/Die Charakteristika von GSM" to "Mobile_Communications/Characteristics_of_GSM"

2020-12-15T14:03:24Z

Text replacement - "Mobile Kommunikation/Die Charakteristika von GSM" to "Mobile_Communications/Characteristics_of_GSM"

Javier: Text replacement - "Mobile_Kommunikation/" to "Mobile_Communications/"

2020-07-09T09:13:38Z

Text replacement - "Mobile_Kommunikation/" to "Mobile_Communications/"

Oezdemir at 15:04, 2 July 2020

2020-07-02T15:04:42Z

Oezdemir: /* Sample Solution */

2020-07-02T15:03:26Z

Sample Solution

Oezdemir at 08:17, 30 June 2020

2020-06-30T08:17:30Z

Oezdemir at 08:17, 30 June 2020

2020-06-30T08:17:13Z

← Older revision		Revision as of 12:37, 23 March 2021
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−	[[Category:~~Exercises for~~ Mobile Communications\|^3.3 Characteristics of GSM^]]	+	[[Category:Mobile Communications: Exercises\|^3.3 Characteristics of GSM^]]

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-'''(1)'''&nbsp; Each mobile station (MS) is in communication with a base transceiver station (BTS). This is part of the ''Base Station Subsystem'' (BSS) &nbsp; &rArr; &nbsp; <u>solution 1</u>.
+'''(1)'''&nbsp; Each mobile station&nbsp; (MS)&nbsp; is in communication with a base transceiver station&nbsp; (BTS).&nbsp; This is part of the base station subsystem&nbsp; (BSS) &nbsp; &rArr; &nbsp; <u>solution 1</u>.
 '''(3)'''&nbsp;If, as is usually the case with GSM, the individual antennas cover $120^\circ$ sectors, a BTS can provide up to three connection paths  &nbsp; &rArr; &nbsp;  $N_{\rm max} \hspace{0.15cm}\underline{= 3}$.
-'''(5)'''&nbsp; <u>solutions 1, 3 und 4</u> are correct:
+'''(5)'''&nbsp; <u>Solutions 1, 3 und 4</u> are correct:
-*The ''Gateway Mobile Switching Center'' (GMSC) is a hardware unit that is responsible for switching between the fixed network and the mobile network.
+*The gateway mobile switching center&nbsp; (GMSC) is a hardware unit that is responsible for switching between the fixed network and the mobile network.
-*The other three terms given actually describe databases of the ''Switching & Management Subsystem'' (SMSS).
+*The other three terms given describe databases of the switching & management subsystem&nbsp; (SMSS).
-* The ''Authentication Center'' (AUC) is responsible for the storage of confidential data and keys.
+* The authentication center&nbsp; (AUC)&nbsp; is responsible for the storage of confidential data and keys.
-* The ''Home Location Register'' (HLR) is a central register for the entire Public Land Mobile Network (PLMN) for managing unencrypted subscriber data, subscribed services and routing for calls from a mobile operator's own subscribers.
+* The home location register&nbsp; (HLR) is a central register for the entire Public Land Mobile Network (PLMN) for managing unencrypted subscriber data, subscribed services and routing for calls from a mobile operator's own subscribers.
-*Contrary, the ''Visitors' Location Register'' (VLR) contains information about the current visitors of other operators who are located in the current PLMN.
+*Contrary, the&nbsp; visitors' location register&nbsp; (VLR) contains information about the current visitors of other operators who are located in the current PLMN.

@@ Line 3: / Line 3: @@
 }}
-[[File:EN_Mob_A_3_5Z.png|right|frame|&bdquo;Base Station Subsystem&rdquo; of GSM]]
+[[File:EN_Mob_A_3_5Z.png|right|frame|Base Station Subsystem of GSM]]
-For the mobile phone standard&nbsp; ''Global System for Mobile Communications''&nbsp; - abbreviated&nbsp; '''GSM''' - the network infrastructure includes the following subsystems:
+For the mobile phone standard&nbsp; "Global System for Mobile Communications"&nbsp; - abbreviated&nbsp; $\rm GSM$ - the network infrastructure includes the following subsystems:
-*''Base Station Subsystem'' &nbsp; ('''BSS'''),
+*"Base Station Subsystem" &nbsp; $\rm (BSS)$,
-*''Switching & Management Subsystem'' &nbsp; ('''SMSS'''),
+*"Switching & Management Subsystem" &nbsp; $\rm (SMSS)$,
-*''Operation & Maintenance Subsystem'' &nbsp; ('''OMSS''').
+*"Operation & Maintenance Subsystem" &nbsp; $\rm (OMSS)$.
-The following terms will continue to be used in the questions on these tasks:
+The&nbsp; "Base Station Subsystem"&nbsp; is mainly responsible for the GSM radio network (see diagram), while the&nbsp; "Switching & Management Subsystem"&nbsp; represents the switching network and the&nbsp; "Operation & Maintenance Subsystem"&nbsp; is responsible for operation and maintenance.
@@ Line 26: / Line 26: @@
-*This task belongs to the chapter&nbsp;  [[Mobile_Communications/Die_Charakteristika_von_GSM|Charakteristika von GSM]].
+''Notes:'' &nbsp; &nbsp; This exercise belongs to the chapter&nbsp;  [[Mobile_Communications/Characteristics_of_GSM|Characteristics of GSM]].
@@ Line 40: / Line 39: @@
 |type="[]"}
 + With the BSS,
-- the SMSS,
+- with the SMSS,
-- the OMSS.
+- with the OMSS.
-{Which statements apply to a ''Base Transceiver Station'' (BTS)?
+{Which statements apply to a base transceiver station&nbsp; (BTS)?
 |type="[]"}
 + It includes the base station's transmitting and receiving devices.
 - The task of the BTS is to switch calls.
-+ In most cases, several BTS are subordinate to a common BSC.
++ In most cases, several BTS are subordinate to a common base station controller&nbsp; (BSC).
 {How many links can a BTS with multiple antennas support if each antenna covers a sector of&nbsp; $120^\circ$&nbsp;?
@@ Line 55: / Line 54: @@
 {Which of the following components are part of the OMSS?
 |type="[]"}
-- The GMSC
+- The GMSC.
-- The MSC
+- The MSC.
-+ The OMC
++ The OMC.
 {Which of the following components are databases?
 |type="[]"}
-+ The AUC
++ The AUC.
-- The GMSC
+- The GMSC.
-+ The HLR
++ The HLR.
-+ The VLR
++ The VLR.
 </quiz>

← Older revision		Revision as of 14:03, 15 December 2020
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−	{{quiz-Header\|Buchseite=~~Mobile Kommunikation~~/~~Die Charakteristika von GSM~~	+	{{quiz-Header\|Buchseite=Mobile_Communications/Characteristics_of_GSM
	}}		}}

← Older revision		Revision as of 09:13, 9 July 2020
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	''Notes:''		''Notes:''

−	*This task belongs to the chapter  [[~~Mobile_Kommunikation~~/Die_Charakteristika_von_GSM\|Charakteristika von GSM]].	+	*This task belongs to the chapter  [[Mobile_Communications/Die_Charakteristika_von_GSM\|Charakteristika von GSM]].

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 </quiz>
-===Sample Solution===
+===Solution===
 {{ML-Kopf}}

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 {{ML-Kopf}}
-'''(1)'''&nbsp; Jede Mobilstation (MS) steht mit einer ''Base Transceiver Station'' (BTS) in Funkverbindung. Diese ist Teil des ''Base Station Subsystems'' (BSS) &nbsp; &rArr; &nbsp;  <u>Lösungsvorschlag 1</u>.
+'''(1)'''&nbsp; Each mobile station (MS) is in communication with a base transceiver station (BTS). This is part of the ''Base Station Subsystem'' (BSS) &nbsp; &rArr; &nbsp; <u>solution 1</u>.
-'''(2)'''&nbsp; Richtig sind die <u>Aussagen 1 und 3</u>. Dagegen ist die ''Base Transceiver Station'' nicht für Vermittlungsaufgaben zuständig, sondern dies ist die Aufgabe eines ''Mobile Switching Centers'' (MSC), das einen Teil des ''Switching and Management Subsystems'' (SMSS) darstellt.
+'''(2)'''&nbsp; Correct are the <u>statements 1 and 3</u>. In contrast, the base transceiver station is not responsible for switching tasks, but this is rather the task of a mobile switching center (MSC), which is part of the switching and management subsystem (SMSS).
-'''(4)'''&nbsp; Nur das Operation and Management Center (OMC) gehört zum OMSS  &nbsp; &rArr; &nbsp; <u> Vorschlag 3</u> .
+'''(5)'''&nbsp; <u>solutions 1, 3 und 4</u> are correct:
-*Dagegen sind MSC und GMSC Komponenten des Mobilvermittlungsnetzes (SMSS).
+*The ''Gateway Mobile Switching Center'' (GMSC) is a hardware unit that is responsible for switching between the fixed network and the mobile network.
-*Bezüglich des OMC unterscheidet man schließlich noch zwischen OMC–B (zur BSS–Überwachung) und OMC–S (zur SMSS–Überwachung).
+*The other three terms given actually describe databases of the ''Switching & Management Subsystem'' (SMSS).
+* The ''Authentication Center'' (AUC) is responsible for the storage of confidential data and keys.
+* The Home Location Register (HLR) is a central register for the entire Public Land Mobile Network (PLMN) for managing unencrypted subscriber data, subscribed services and routing for calls from a mobile operator's own subscribers.
-'''(5)'''&nbsp; <u>Lösungsvorschläge 1, 3 und 4</u>:
+*Contrary, the Visitors' Location Register (VLR) contains information about the current visitors of other operators who are located in the current PLMN.

@@ Line 5: / Line 5: @@
 [[File:EN_Mob_A_3_5Z.png|right|frame|&bdquo;Base Station Subsystem&rdquo; von GSM]]
 For the mobile phone standard&nbsp; ''Global System for Mobile Communications''&nbsp; - abbreviated&nbsp; '''GSM''' - the network infrastructure includes the following subsystems:
-*''Base Station Subsystem'' &nbsp; ('''BSS''),
+*''Base Station Subsystem'' &nbsp; ('''BSS'''),
-*''Switching & Management Subsystem'' &nbsp; (''SMSS''),
+*''Switching & Management Subsystem'' &nbsp; ('''SMSS'''),
-*''Operation & Maintenance Subsystem'' &nbsp; ('''OMSS'').
+*''Operation & Maintenance Subsystem'' &nbsp; ('''OMSS''').
 The&nbsp; ''Base Station Subsystem''&nbsp; is mainly responsible for the GSM radio network (see diagram), while the&nbsp; ''Switching & Management Subsystem''&nbsp; represents the switching network and the&nbsp; ''Operation & Maintenance Subsystem''&nbsp; is responsible for operation and maintenance.
@@ Line 19: / Line 19: @@
 *''Mobile Switching Center'' &nbsp; ('''MSC'''),
 *''Operation and Maintenance Center'' &nbsp; ('''OMC'''),
-*''Visitor Location Register'' &nbsp; ('''VLR’'').
+*''Visitor Location Register'' &nbsp; ('''VLR''').