IEEE 802.21 MEDIA INDEPENDENT HANDOVER DCN: 21-10-0164-00-srho Title: Discussion about PoA parameter in TLV Query Date Submitted: July 22, 2010 Presented at IEEE 802.21c Teleconference Authors or Source(s):  Hongseok Jeon (ETRI) Abstract: Discussion about PoA parameter in TLV Query so that whereby IS retrieves information on the SFF specific to given query.

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Background New Information Elements for SFF addressing were presented in 21-10/131r2 (IEEE 802.21c Proposal). IE_SFF_IP_ADDR IE_SFF_FQDN Two issues were raised: Issue 1: IE_SFF_IP_ADDR and IE_SFF_FQDN provides same information. Which is more valuable? Issue 2: SFF has no physical location information. How can Information Server provide information about the SFF suitable for given query? Meeting Conclusion: IE_SFF_FQDN was adopted and IE_SFF_IP_ADDR was removed. The optional parameters in a TLV query can be useful for IS to respond with suitable SFF FQDN matching the preferred networks and the roaming partner of the current serving network (NET_TYPE_INC, NETWK_INC). 21-09-0164-00-

More Discussion on Issue 2 We need a more detailed information than NET_TYPE_INC and NETWK_INC. Given Network Type and Network ID can provide information on multiple SFFs than a specific SFF suitable to a querier. Specific PoA can be a meaningful parameter in the TLV query whereby IS retrieves information on the SFF specific to given query. POA_INC: Specific PoA the queirier wants to include in the query response. BASE_ID AP_ID (not existing) CELL_ID