Basic GSM Training Material Introduction of GSM; GSM Network Architecture; Access Mode of GSM; Logical Channels in GSM; GSM Cell Structure; GSM Bands; Coding's in GSM; Call Originating. | BASIC GSM Training Material Contents: Introduction of GSM. GSM Network Architecture. Access Mode of GSM. Logical Channels in GSM. GSM Cell Structure. GSM Bands. Coding's in GSM. Call Originating. INTRODUCTION OF GSM BASIC WIRELESS COMMUNICATION There are TWO major parts of wireless communication: TRANSMITTER (Tx) RECEIVER (Rx) TRANSMITTER MIC MODULATOR RF AMPLIFIER LOCAL OSC. RECEIVER BAND PASS FILTER MIXER LOCAL OSCILLATOR DEMODULATOR AUDIO AMPLIFIER IF OUT TYPES OF CALLS MOBILE to LL Mobile - BTS - BSC - PSTN - LL LL to MOBILE LL - PSTN - BSC - BTS - Mobile MOBILE to MOBILE Mobile - BTS - BSC - BTS - Mobile ( If it is same Network) Mobile - BTS - BSC1 - PSTN - BSC2 - BTS - Mobile ( If it is different Network with same SP or different SP) GSM means Global System for Mobile communications. Developed in 1982. Most popular of cellular technologies. GSM Only Handsets belong to 2G and . In GSM just like FM Radio channels users are identified by different frequencies, with assigned . | BASIC GSM Training Material Contents: Introduction of GSM. GSM Network Architecture. Access Mode of GSM. Logical Channels in GSM. GSM Cell Structure. GSM Bands. Coding's in GSM. Call Originating. INTRODUCTION OF GSM BASIC WIRELESS COMMUNICATION There are TWO major parts of wireless communication: TRANSMITTER (Tx) RECEIVER (Rx) TRANSMITTER MIC MODULATOR RF AMPLIFIER LOCAL OSC. RECEIVER BAND PASS FILTER MIXER LOCAL OSCILLATOR DEMODULATOR AUDIO AMPLIFIER IF OUT TYPES OF CALLS MOBILE to LL Mobile - BTS - BSC - PSTN - LL LL to MOBILE LL - PSTN - BSC - BTS - Mobile MOBILE to MOBILE Mobile - BTS - BSC - BTS - Mobile ( If it is same Network) Mobile - BTS - BSC1 - PSTN - BSC2 - BTS - Mobile ( If it is different Network with same SP or different SP) GSM means Global System for Mobile communications. Developed in 1982. Most popular of cellular technologies. GSM Only Handsets belong to 2G and . In GSM just like FM Radio channels users are identified by different frequencies, with assigned time slots. Has mainly four frequency bands of operation.(850/900/1800/1900). 5/17/2013 TELECOM/MOBILE/MSS 8 1 2 4 5 7 8 * 0 3 6 9 # GSM 8 5/17/2013 TELECOM/MOBILE/MSS 9 1st Generation Mobile Communication 2nd Generation Mobile Communication Generation Mobile Communication 3rd Generation Mobile Communication 3G and above Mobile Technology Evolution 9 Emerging Technologies 1G-First Generation Example-AMPS Analog 2 way radio w/transmitter/receiver Voice service only FDM 5/17/2013 TELECOM/MOBILE/MSS 10 10 Emerging Technologies 2G-Second Generation Example-DAMPS TDM Digital transmission over same frequency BW 3-10 times more capacity as 1G Enhanced features Messaging on handsets Better security Digital data is scrambled when multiplexed Example-GSM Same as DAPMS + International Mobility SIM in handset 5/17/2013 TELECOM/MOBILE/MSS 11 11 Emerging Technologies Generation Example EDGE (Enhanced data rate for GSM evolution) Wireless data @ 384Kbps GPRS (General Packet radio service) .
