1. 21-07-0067-01-0021 IEEE 802.21 MEDIA INDEPENDENT HANDOVER DCN: 21-07-0067-00-0000 Title: Optimize MIIS Get Information Message Date Submitted: February 18, 2007 Presented at IEEE 802.21 session #19 in Orlando, US Authors or Source(s): Y. Alice Cheng, Yoshihiro Ohba, Miriam Tauil Abstract: Reduce the redundant TLV encoding for MIH Get Information Message

2. 21-07-0067-01-0021 IEEE 802.21 presentation release statements This document has been prepared to assist the IEEE 802.21 Working Group. It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein. The contributor grants a free, irrevocable license to the IEEE to incorporate material contained in this contribution, and any modifications thereof, in the creation of an IEEE Standards publication; to copyright in the IEEE’s name any IEEE Standards publication even though it may include portions of this contribution; and at the IEEE’s sole discretion to permit others to reproduce in whole or in part the resulting IEEE Standards publication. The contributor also acknowledges and accepts that this contribution may be made public by IEEE 802.21. The contributor is familiar with IEEE patent policy, as outlined in Section 6.3 of the IEEE-SA Standards Board Operations Manual and in Understanding Patent Issues During IEEE Standards Development http://standards.ieee.org/board/pat/guide.html> Section 6.3 of the IEEE-SA Standards Board Operations Manualhttp://standards.ieee.org/guides/opman/sect6.html#6.3 http://standards.ieee.org/board/pat/guide.html

3. 21-07-0067-01-0021 Current MIH Get Info Request (Binary Query) Query TYPE(6)Length 1 Query Param(38) Header BIN QueryLength Network TypeLengthValue Querier LocationLengthValue Network InclusionLengthValue RESPONSE_SIZE LengthValue BIN QueryLength Network TypeLengthValue Querier LocationLengthValue Network InclusionLengthValue IETLV Length

4. 21-07-0067-01-0021 Current MIH Get Info Request (SPARQL Query) Header MIIS_SPARQL_QLengthValue MIME_TypeLengthValue IETLV MIIS_SPARQL_QLengthValue Query TYPE(6)Length 2 Query Param(38)Length RESPONSE_SIZE LengthValue

5. 21-07-0067-01-0021 Proposed Method 1 Query TYPE(6) LengthXXX Query ParamLength Header Query Content IETLV Query ParamLength Query Content XXX = Binary or SPARQL RESPONSE_SIZE LengthValue

6. 21-07-0067-01-0021 Proposed Method 1 (Binary Query) Query TYPE(6)LengthBinary(1) BIN QueryLength Header MIIS_SPARQL_QLengthValue Querier LengthLengthValue IETLV BIN QueryLength Network TypeLengthValue Querier LocationLengthValue Network InclusionLengthValue Network TypeLengthValue Querier LocationLengthValue Network InclusionLengthValue RESPONSE_SIZE LengthValue

7. 21-07-0067-01-0021 MIIS_SPARQL_QLengthValue Proposed Method 1 (SPARQL Query) Query TYPE(6)LengthRDF(2) SPARQL QueryLength Header MIIS_SPARQL_QLengthValue MIME_TypeLengthValue IETLV SPARQL QueryLength MIIS_SPARQL_QLengthValue MIME_TypeLengthValue RESPONSE_SIZE LengthValue

8. 21-07-0067-01-0021 Propose Method 2 MIIS Query(6)Length TYPE Header RESPONSE_SIZELengthValue Query MIIS Query(6)Length TYPE Query

9. 21-07-0067-01-0021 Propose Method 2 MIIS Query(6)Length BINARY Header MIIS_SPARQL_QLengthValue Querier LengthLengthValue Network TypeLengthValue Querier LocationLengthValue Network InclusionLengthValue MIIS Query(6)Length BINARY Network TypeLengthValue Querier LocationLengthValue RESPONSE_SIZELengthValue

10. 21-07-0067-01-0021 Propose Method 2 (SPARQL Query) MIIS Query(6)Length RDF Header RESPONSE_SIZELengthValue MIIS_SPARQL_QLengthValue MIME_TypeLengthValue MIIS Query(6)Length RDF MIIS_SPARQL_QLengthValue MIME_TypeLengthValue MIIS_SPARQL_QLengthValue

11. 21-07-0067-01-0021 Tradeoffs Method 1 Allow more possible different type of queries Restrict the query can be only one query type Method 2 Allow up to limited amount of number type of queries Allow different query types to be in the same request message Both Eliminate one additional level of encapsulation of query Reduce one TLV assignment

12. 21-07-0067-01-0021 Modifications Required Merge MIIS Binary Query and MIIS Query Parameters. Move the MIIS_TLV_QUERY p66L11-28 to section 8 Merge into MIIS Query parameters p203 L35 Merge MIIS Binary Response and MIIS Query Response Move the MIIS_TLV_RESPONSE p69L33-48 to section 8 Merge into MIIS Query respones p204 L9 MIH_Get_Information request and response messages in 8.5.4.1 and 8.5.4.2 descriptions should be verified with this changes.