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

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m tom ip communication over gprs
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

i p connectivity for wismo open at
IP Connectivityfor WISMO & Open AT
  • WISMO IP Connectivity
    • Standard WISMO module
    • IP connectivity implemented within the Open AT
g prs ip with at commands
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

g prs ip with ip stack library
GPRS & IP with IP Stack Library

GPRS

Network

GGSN

Open AT

Application

TCP/UDP

IP

Low Internet Layers

GPRS

GPRS

AT/V.24

i p connectivity services
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,…
slide7

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)
i p enhanced application
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

slide9

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?
slide10

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
slide11

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”
slide12

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"
slide13

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

slide14

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/"
slide15

File Transmission/Reception

  • AT#FTPPUT

<file transmission><ctrl-c>

  • AT#FTPGET

<file capture>

Command

Mode

Incoming call

slide16

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

v isit our web sites
Visit our Web Sites

www.wavecom.com

www.wismo.com