1. WIMAX 聚合子層於嵌入式系統下之 探討與實現 The research and implementation of WiMAX convergence sublayer system over an embedded system 1 Speaker: Chao-Sung Yah ( 葉昭松 ) Advisor: Dr. Kai-Wei Ke ( 柯開維 博士 ) Date: 07/28/2008

2. OUTLINE Introduction IEEE 802.16d MAC Layer IEEE 802.16d CS sub-layer QoS in Ethernet IEEE802.1Q/p Type of Service Diff-Serv IEEE 802.16d-2004 Convergence Sub-layer Implementation System Architecture Priority design PHS design System over embedded system Conclusion and Future Work 2

3. IEEE 802.16D MAC LAYER 3 Convergence Sublayer (CS) Mapping external network data into MAC SDU Classifying external network SDU Associating to MAC connection ID Payload header suppression (PHS) Common Part Sublayer (CPS) System access Bandwidth allocation Connection establishment Connection maintenance Security Sublayer Authentication Security key exchange Encryption

4. OUTLINE Introduction IEEE 802.16d MAC Layer IEEE 802.16d CS sub-layer QoS in Ethernet IEEE802.1Q/p Type of Service Diff-Serv IEEE 802.16d-2004 Convergence Sub-layer Implementation System Architecture Priority design PHS design System over embedded system Conclusion and Future Work 4

5. Asynchronous Transfer Mode (ATM) CS Asynchronous Transfer Mode (ATM) CS Packet CS Packet CS The packet CS is used for transport for all packet- based protocols such as Internet Protocol (IP),Point-to- Point Protocol (PPP), and IEEE Std 802.3 (Ethernet). Other CSs may be specified in the future Other CSs may be specified in the future 5 IEEE 802.16D CS SUB-LAYER

6. Down-link 1. Classification of the higher-layer protocol PDU 2. Suppression of payload header information (optional) 3. Delivery of the resulting CS PDU to the MAC SAP UP-link 1. Receipt of the CS PDU from MAC SAP 2. Rebuilding of any suppressed payload header information (optional) 6

7. PAYLOAD HEADER SUPPRESSION (PHS) METHOD 7

8. OUTLINE Introduction IEEE 802.16d MAC Layer IEEE 802.16d CS sub-layer QoS in Ethernet IEEE802.1Q/p Type of Service Diff-Serv IEEE 802.16d-2004 Convergence Sub-layer Implementation System Architecture Priority design PHS design System over embedded system Conclusion and Future Work 8

9. IEEE802.1Q/P FIELD 9

10. OUTLINE Introduction IEEE 802.16d MAC Layer IEEE 802.16d CS sub-layer QoS in Ethernet IEEE802.1Q/p Type of Service Diff-Serv IEEE 802.16d-2004 Convergence Sub-layer Implementation System Architecture Priority design PHS design System over embedded system Conclusion and Future Work 10

11. TYPE OF SERVICE 11 01234567 PrecedenceDTRCReserved

12. OUTLINE Introduction IEEE 802.16d MAC Layer IEEE 802.16d CS sub-layer QoS in Ethernet IEEE802.1Q/p Type of Service Diff-Serv IEEE 802.16d-2004 Convergence Sub-layer Implementation System Architecture Priority design PHS design System over embedded system Conclusion and Future Work 12

13. DIFFERENTIAL SERVICE(DIFFSERV) 13 01234567 Differential Service Code Point (DSCP) CU

14. DIFFERENTIAL SERVICE CODE POINT Four kind of Per Hop Behavior ： 一、 The Default PHB ： DCSP value is 000000 ， Service type is Best Effort Service 。 二、 Class-Selector PHBs ， DSCP value is xxx000 ， the default Codepoint is also Class-Selector Codepoint 。 三、 Expedited Forwarding(EF) PHB ， low loss ， low delay ， low jitter ， bandwidth guarantee ， DSCP value is 101110 。 四、 Assured Forwarding (AFxy) PHB ， F4>F3>F2>F1 ， Fx3>Fx2>Fx1 14

15. 15 DIFFERENTIAL SERVICE CODE POINT

16. OUTLINE Introduction IEEE 802.16d MAC Layer IEEE 802.16d CS sub-layer QoS in Ethernet IEEE802.1Q/p Type of Service Diff-Serv IEEE 802.16d-2004 Convergence Sub-layer Implementation System Architecture Priority design PHS design System over embedded system Conclusion and Future Work 16

17. SYSTEM ARCHITECTURE 17

18. OUTLINE Introduction IEEE 802.16d MAC Layer IEEE 802.16d CS sub-layer QoS in Ethernet IEEE802.1Q/p Type of Service Diff-Serv IEEE 802.16d-2004 Convergence Sub-layer Implementation System Architecture Priority design PHS design System over embedded system Conclusion and Future Work 18

19. 802.1P PRIORITY AND SERVICE FLOW VALUE DESIGN 19 Priority valueService Flow Type 0BE 1~3NRTPS 4~5RTPS 6~7UGS

20. TOS/DSCP VALUE DESIGN 20

21. NummberService Flow Type ToS ValueDSCP Value PHB Type 1UGSNone101110EF PHB 2UGS1111000None 3UGS1110100None 4UGS1110010None 5UGS1110001None 6UGS1110000111000CS PHB 7UGS1101000None 8UGS1100100None 9UGS1100010None 10UGS1100001None DSCP/TOS VALUE DESIGN

22. 22 DSCP/TOS VALUE DESIGN NummberService Flow Type ToS ValueDSCP Value PHB Type 11UGS1100000110000CS PHB 12UGS1011000101100AF PHB 13RTPS1010100101010AF PHB 14RTPS1010010None 15RTPS1010001None 16RTPS1010000101000CS PHB AF PHB 17UGS1001000100100AF PHB 18RTPS1000100100010AF PHB 19RTPS1000010None 20RTPS1000001None

23. 23 DSCP/TOS VALUE DESIGN NummberService Flow Type ToS ValueDSCP Value PHB Type 21RTPS1000000100000CS PHB AF PHB 22RTPS0111000011100AF PHB 23NRTPS0110100011010AF PHB 24NRTPS0110010None 25NRTPS0110001None 26NRTPS0110000011000CS PHB AF PHB 27NRTPS0101000010100AF PHB 28BE0100100010010AF PHB 29BE0100010None 30BE0100001None

24. 24 NummberService Flow Type ToS ValueDSCP Value PHB Type 31BE0100000010000CS PHB AF PHB 32NRTPS0011000None 33BE0010100None 34BE0010010None 35BE0010001None 36BE0010000001000CS PHB 37NRTPS0001000None 38BE0000100None 39BE0000010None 40BE0000001None DSCP/TOS VALUE DESIGN

25. WELL-KNOW PORT AND SERVICE FLOW VALUE DESIGN 25 Port NumberService Name Transport Protocol Application Service Server Flow 7EchoTCP/UDPReply test BE 20FTP DataTCPFTP Data Port NRTPS 21FTPTCPFTP Control Poet NRTPS 23TelnetTCPTelnet Server Port NRTPS 25SMTPTCP Simple Mail Transfer Protocol NRTPS 43Who isTCP Who 、 Nickname BE 53DomainTCP/UDP Domain Name Server （ DNS ） BE 69TFTPUDPTrivial File Transfer Protocol NRTPS 80HTTPTCPWeb Server BE 110POP3TCPPost Office Protocol 3 NRTPS 443HTTPSTCPEncryption HTTP BE 554RTSPTCP Real Time Stream Control Protocol RTPS

26. RTP PAYLOAD TYPE AND SERVICE FLOW VALUE DESIGN 26 Payload TypeServer Flow Audio0~23UGS Vedio24~33RTPS Unknow33 upRTPS

27. OUTLINE Introduction IEEE 802.16d MAC Layer IEEE 802.16d CS sub-layer QoS in Ethernet IEEE802.1Q/p Type of Service Diff-Serv IEEE 802.16d-2004 Convergence Sub-layer Implementation System Architecture Priority design PHS design System over embedded system Conclusion and Future Work 27

28. 28 PHS

29. 29 PHS REBUILDED

30. OUTLINE Introduction IEEE 802.16d MAC Layer IEEE 802.16d CS sub-layer QoS in Ethernet IEEE802.1Q/p Type of Service Diff-Serv IEEE 802.16d-2004 Convergence Sub-layer Implementation System Architecture Priority design PHS design System over embedded system Conclusion and Future Work 30

31. CS over embedded system 31

32. OUTLINE Introduction IEEE 802.16d MAC Layer IEEE 802.16d CS sub-layer QoS in Ethernet IEEE802.1Q/p Type of Service Diff-Serv IEEE 802.16d-2004 Convergence Sub-layer Implementation System Architecture Priority design PHS design System over embedded system Conclusion and Future Work 32

33. CONCLUSION 更聰明與更智慧的分類機制的設計的困難 更深入的辨別多媒體封包 加強的分辨機制提高對 QoS 的幫助 難以設計與複雜的檔頭壓縮機制 33

34. FUTURE WORK 1. Port Number 的完整歸類 2. 基於 IPv6 的分類 3. IEEE802.16e-2005 的擴充 4. 使用者定義的部份 34

35. OUTLINE Introduction IEEE 802.16d MAC Layer IEEE 802.16d CS sub-layer QoS in Ethernet IEEE802.1Q/p Type of Service Diff-Serv IEEE 802.16d-2004 Convergence Sub-layer Implementation System Architecture Priority design PHS design System over embedded system Conclusion and Future Work 35

36. DEMO 36