Chapter 6 Wireless and Mobile Networks - Network and Systems Lab
Chapter 6 Wireless and Mobile Networks - Network and Systems Lab Chapter 6 Wireless and Mobile Networks - Network and Systems Lab
GSM: indirect routing to mobile home MSC consults HLR, gets roaming number of mobile in visited network mobile user HLR 4 2 home network home Mobile Switching Center VLR Mobile Switching Center visited network 3 correspondent 1 call routed to home network Public switched telephone network home MSC sets up 2 nd leg of call to MSC in visited network MSC in visited network completes call through base station to mobile 6: Wireless and Mobile Networks 6-62
GSM: handoff with common MSC Handoff goal: route call via new base station (without interruption) old BSS VLR old routing Mobile Switching Center new routing new BSS reasons for handoff: stronger signal to/from new BSS (continuing connectivity, less battery drain) load balance: free up channel in current BSS GSM doesn’t mandate why to perform handoff (policy), only how (mechanism) handoff initiated by old BSS 6: Wireless and Mobile Networks 6-63
- Page 11 and 12: Wireless Link Characteristics Diffe
- Page 13 and 14: Wireless network characteristics Mu
- Page 15 and 16: CDMA Encode/Decode sender data bits
- Page 17 and 18: Chapter 6 outline 6.1 Introduction
- Page 19 and 20: 802.11 LAN architecture BSS 1 AP In
- Page 21 and 22: 802.11: passive/active scanning BBS
- Page 23 and 24: IEEE 802.11 MAC Protocol: CSMA/CA 8
- Page 25 and 26: Collision Avoidance: RTS-CTS exchan
- Page 27 and 28: 802.11 frame: addressing H1 R1 rout
- Page 29 and 30: 802.11: mobility within same subnet
- Page 31 and 32: 802.11: advanced capabilities Power
- Page 33 and 34: 802.16: WiMAX like 802.11 & cellul
- Page 35 and 36: Chapter 6 outline 6.1 Introduction
- Page 37 and 38: Cellular networks: the first hop Tw
- Page 39 and 40: Cellular standards: brief survey 2.
- Page 41 and 42: Chapter 6 outline 6.1 Introduction
- Page 43 and 44: Mobility: Vocabulary home network:
- Page 45 and 46: How do you contact a mobile friend:
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- Page 49 and 50: Mobility via Indirect Routing home
- Page 51 and 52: Indirect Routing: moving between ne
- Page 53 and 54: Mobility via Direct Routing: commen
- Page 55 and 56: Chapter 6 outline 6.1 Introduction
- Page 57 and 58: Mobile IP: indirect routing foreign
- Page 59 and 60: Mobile IP: registration example hom
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GSM: indirect routing to mobile<br />
home MSC consults HLR,<br />
gets roaming number of<br />
mobile in visited network<br />
mobile<br />
user<br />
HLR<br />
4<br />
2<br />
home<br />
network<br />
home<br />
<strong>Mobile</strong><br />
Switching<br />
Center<br />
VLR<br />
<strong>Mobile</strong><br />
Switching<br />
Center<br />
visited<br />
network<br />
3<br />
correspondent<br />
1 call routed<br />
to home network<br />
Public<br />
switched<br />
telephone<br />
network<br />
home MSC sets up 2 nd leg of call<br />
to MSC in visited network<br />
MSC in visited network completes<br />
call through base station to mobile<br />
6: <strong>Wireless</strong> <strong>and</strong> <strong>Mobile</strong> <strong><strong>Network</strong>s</strong> 6-62
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