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Exploring GPRS and IP Stack in M2M Communication: Seminar Insights

This seminar, held in September 2003, delves into the intricacies of GPRS and IP communication within M2M systems. Key topics covered include GPRS session management, the significance of dynamic versus static IP addressing, and IP connectivity for WISMO modules. Attendees learned about implementing IP stacks in Open AT applications, TCP/UDP socket management, and email transmission protocols via GPRS. Practical demonstrations included firmware management, session initiation commands, and file transfer between systems, showcasing the capabilities and applications of GPRS in modern communication.

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Exploring GPRS and IP Stack in M2M Communication: Seminar Insights

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  1. TECHNICAL SEMINAR SEPTEMBER 2003 GPRS & IP STACK Philippe de La Bourdonnaye

  2. MtoM IP Communication over GPRS • GPRS sessions opening at both ends • Necessary dynamic IP@ synchronisation ? or Static IP@ ? • Private IP@ or Public IP@ ? GPRS Network GPRS Network Packet Networks

  3. IP Connectivityfor WISMO & Open AT • WISMO IP Connectivity • Standard WISMO module • IP connectivity implemented within the Open AT

  4. GPRS & IP with AT# Commands GPRS Network GGSN AT# Commands TCP/UDP Application IP Low Internet Layers GPRS GPRS AT/V.24 AT/V.24

  5. GPRS & IP with IP Stack Library GPRS Network GGSN Open AT Application TCP/UDP IP Low Internet Layers GPRS GPRS AT/V.24

  6. IP Connectivity: Services • Integration of IP stack as Open AT applic. • Download into Wavecom module/modems • Autonomous Software • Stack initialisation and parameters restoration from WISMO EEPROM • To be integrated into standalone equipement • Both GSM and GPRS Compatibilities • IP Stack use on GSM as well • GSM Features during GPRS Sessions: Incoming Calls, SMS,…

  7. Protocols Supported • TCP Sockets and UDP Sockets: • transparent asynchronous data transfer between systems • defined by an IP address and a port number • includes Telnet (TCP/23) for Terminal Emulation • FTP (file transfer protocol TCP/20,21): • file transfer between systems • POP3 (Post Office Protocol V3 TCP/110): • allows clients to read and remove email from a mailbox • SMTP (Simple Mail Transfer Protocol TCP/25): • used to deliver email from one system to another • DNS (Domain Name Solving UDP/53)

  8. IP Enhanced Application • Example with an Open AT + IP customization: FTP Server File Storage For Fiscal Purposes IP FTP transfer GSM/GPRS Internet PC E-mail Alarm Management

  9. First Steps & First Checks • Main Firmware Download • AT+WOPEN=0 • V640c • AT+CGMR • GPRS class 10 Feature Activated • AT+CGCLASS=“B” • Open AT Feature Activated • AT+WOPEN? • IP Stack Download • V302_V2 • AT+WOPEN=1 • IP Feature Activated • AT#VVERSION • AT+WIMEI?

  10. Starting with GPRS Attachment • AT+WIND? • AT+CPIN? • AT+WGPRS=0,0;+CMEE=1;&W;+WMIR • AT+CFUN=1 • AT+CPIN? • AT+CREG? • AT+CGREG? • AT#VALL • AT# parameters are automatically stored in Flash PROM • No AT&W needed • AT#DELFLASH : come back to default values after the next reset

  11. Starting with GPRS Session • AT#VGPRS • AT#APNSERV=“orange.fr” • AT#APNUN=“orange” • AT#APNPW=“orange” • AT#GPRSMODE=1 • +WIND: 4 • AT#CONNECTIONSTART (AT#CONNECTIONSTOP) • AT#VSTATE • AT#DISPLAYIP • AT#VDNS • AT#DNSSERV1=“0.0.0.0” • AT#DNSSERV2=“aaa.bbb.ccc.ddd”

  12. Email Management • AT#VPOP3 • AT#VSMTP • AT#POP3HEADERMODE=1 • AT#POP3PORT=110 • AT#POP3PW="fbewm03" • AT#POP3SERV="pop.tiscali.fr" • AT#POP3UN="fbewm03@tiscali.fr" • AT#DOMAIN="tiscali.fr" • AT#SENDERADDR="fbewm03@tiscali.fr" • AT#SENDERNAME="fouadtraining03" • AT#SMTPPORT=25 • AT#SMTPPW="fbewm03" • AT#SMTPSERV="smtp.tiscali.fr" • AT#SMTPUN="fben0232@tiscali.fr"

  13. Email Transmission/Reception • AT#VMAIL1 • AT#CCREC1="fbewm03@tiscali.fr" • AT#REC1="fbewm05@tiscali.fr" • AT#SUBJ1="test message“ • AT#BODY1<cr> Maximum message length is 120<ctrl-z> • AT#SENDMAIL1 • AT#PUTMAIL<cr> No limit for message length<cr><lf>.<cr><lf> • AT#GETMAIL Emails are automatically deleted Command Mode Incoming call Command Mode Incoming call

  14. File Transfer Management • AT#VFTP • AT#FTPSERV="81.80.89.163" • AT#FTPPORT=21 • AT#FTPUN="support-tcpip" • AT#FTPPW="xbo194ar" • AT#FTPTYPE=A • AT#FTPGETFILENAME="ascii1.txt" • AT#FTPGETPATH="./support-tcpip/“ • AT#FTPPUTFILENAME="ascii1.txt" • AT#FTPPUTPATH="./support-tcpip/"

  15. File Transmission/Reception • AT#FTPPUT <file transmission><ctrl-c> • AT#FTPGET <file capture> Command Mode Incoming call

  16. TCP Socket Management • AT#VTCP • AT#DLEMODE=1 (def.) • AT#TCPPORT=23 • AT#TCPTXDELAY=100 (def.) • Listener • AT#TCPSERV=“255.255.255.255” • AT#LTCPSTART • AT#LTCPSTOP (to stop if no socket has been opened by a caller) • Caller • AT#TCPSERV=“eee.fff.ggg.hhh” • AT#OTCP<cr> The text is transmitted to remote site without echo<ctrl-c> Command Mode Incoming call Command Mode Incoming call

  17. Visit our Web Sites www.wavecom.com www.wismo.com

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