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ES/CS Work Status. Agreement on the transport requirements Ongoing email discussion on some aspects MIH discovery MIH Capability discovery MIH Registration Split requirements at MIH protocol level and transport level. ES/CS Message Reliability. Objective

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Es cs work status
ES/CS Work Status

  • Agreement on the transport requirements

  • Ongoing email discussion on some aspects

    • MIH discovery

    • MIH Capability discovery

    • MIH Registration

  • Split requirements at MIH protocol level and transport level

21-05-0XX-00-0000


Es cs message reliability
ES/CS Message Reliability

  • Objective

    • ES/CS messages must have reliability

  • Approaches

    • MIH protocol level reliability

      • Efficient and optimized communication => no transport reliability

    • Reliability at transport level

      • May have to use a session based transport e.g. TCP

      • May add transport message exchanges => latency

  • MIH Protocol level reliability requires

    • NAT-PT tranversal (already agreed)

    • Firewall traversal (new one)

21-05-0XX-00-0000


Mih state diagram
MIH State Diagram

MIH Idle

MIH Discovery

MIH ES/CS Registration

MIH Capability

Discovery

MIH Active

21-05-0XX-00-0000


Mih discovery capability discovery
MIH Discovery & Capability Discovery

  • MIH Discovery

    • to discover the address of MIH nodes in the network

    • Not defined in IEEE 802.21

    • Transport specific approach e.g. 802.11, IETF

  • MIH Capability discovery

    • To exchange MIH service capabilities between peers

    • Part of MIH protocol

    • Within the scope of IEEE 802.21

21-05-0XX-00-0000


Mih es cs registration
MIH ES/CS Registration

  • What is ES/CS Registration?

    • MIH protocol level message exchange to create MIH pairing

    • MIH peer registers with remote MIH peer to create a session for MIH message exchanges

    • MIH peers may not provide or accept MIH messages without an active registration session => alleviates security problem

    • Can remain active even after handovers

  • Why ES/CS Registration?

    • Peer node to request for specific event indications

    • Peer node to send specific commands

    • Establishes a session setup and assigns an id

  • When to do ES/CS Registration?

    • Follows MIH discovery procedure

    • Before sending any ES/CS MIH messages

  • Deregistration to remove the MIH pairing

21-05-0XX-00-0000


Es cs work next steps
ES/CS Work Next Steps

  • Create a doc format for ES/CS requirements for next meeting

  • Finalize MIH level protocol functionality related to capability discovery and registration

21-05-0XX-00-0000


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