FMIPv6 over IEEE 802'16 draftjangmipshopfh8021600'txt - PowerPoint PPT Presentation

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FMIPv6 over IEEE 802'16 draftjangmipshopfh8021600'txt

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HeeJin Jang, Youn-Hee Han, Soohong Daniel Park. SAMSUNG. Junghoon Jee, ... Contents - IETF 64 - 3 /9. 802.16 Deployment Architectures. IP Mobility is required ... – PowerPoint PPT presentation

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Title: FMIPv6 over IEEE 802'16 draftjangmipshopfh8021600'txt


1
FMIPv6 over IEEE 802.16 (draft-jang-mipshop-fh802
16-00.txt)
  • HeeJin Jang, Youn-Hee Han, Soohong Daniel Park
  • SAMSUNG
  • Junghoon Jee, Jaesun Cha
  • ETRI

2
Contents
  • 802.16 Deployment Architectures
  • 802.16 Handover Overview
  • Change points
  • Two New Primitives
  • Handover Scenarios
  • Implementation with 802.21 MIHF
  • QA

3
802.16 Deployment Architectures
IP Mobility is required
IP Mobility is required
Fig. (a) a subnet one AR several BSs
Fig. (b) a subnet one AR one BS
4
802.16e Handover Overview
  • MN collects info. about the serving BS and
    neighboring BSs through the periodic L2 neighbor
    advertisement and the scanning.
  • MN starts HO by sending MOB_MSHO-REQ to BS and
    then BS replies with MOB_BSHO-RSP including the
    candidates BSs.
  • MN selects the target BS and then sends the
    MOB_HO-IND to the serving BS and switches the
    links
  • After the HO, MN performs the network re-entry
    procedures.

Target BS
Serving BS
MN L2 (MS)
MOB_NBR-ADV
MOB_SCN_REQ
MOB_SCN_RSP
Scanning
MOB_MSHO-REQ
MOB_BSHO-RSP
MOB_HO-IND
802.16e Network re-entry
Packets
5
Change points
  • Changes from the initial presentation
  • Two more primitives are defined
  • Five HO steps are changed into four HO steps
  • Implementation with 802.21 MIHF (Media
    Independent Handover Function) is described

6
Four Primitives for interaction of FMIPv6
802.16e
  • We defined two more primitives, New_BS_Found and
    Link_Switch
  • New_BS_Found is triggered from L2 to L3 when new
    BS is detected in order that the MN starts the
    NAR discovery by exchange of RtSolPr PrRtAdv
  • Link_Switch is introduced to notify L2 of L3 HO
    preparation completion
  • By default, L2 doesnt need to wait this
    primitive
  • It could be implemented to make higher the
    possibility of predictive HO

7
L2/L3 Handover Scenarios
  • Conceptually divided into four steps 5 steps gt
    4 steps
  • 802.16 network entry step is integrated into HO
    execution step
  • NAR Discovery
  • MN learns the neighboring BSs
  • NAR IP address resolution with BSID after getting
    (1)
  • HO Preparation
  • MN requests HO and gets the reply back from the
    BS and triggers (2)
  • Tunnel is setup and packets are redirected to NAR
  • NCoA is confirmed
  • HO Execution
  • After the arrival of FBAck, MN issues (3).
  • MN L2 sends HO indication to the serving BS and
    switches the links
  • IEEE 802.16e network entry
  • HO Completion
  • MN sends FNA and receives the buffered packets
    from NAR

1) New_BS_Found 2) Link_Going_Down 3)
Link_Switch 4) Link_UP
8
Implementation with 802.21 MIHF
  • MIH function services
  • MI Event service (MIES)
  • MI Command service (MICS)
  • MI Information service (MIIS)
  • If the terminal is equipped with MIHF module, the
    proposed primitives can be implemented to
    cooperate with 802.21 MIHF

9
Future Works
  • We assumed that Neighbor discovery over 802.16
    networks works well.
  • We need to consider the problems which may also
    cause mal-operation in FMIPv6.
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