dietermoreno
- Dec 30, 2012
- 238
- Joined
- Dec 30, 2012
- Messages
- 238
I have some questions about cell phone generations regarding modulation schemes, access points, and protocols after I read some tutorials on how cell phones work.
Is this correct as follows?:
1G
Modulation
modulation scheme: FM (analog)
Amplification
RF gain stage: class A transistor
AF gain stage: class A transistor
modem gain stage: N/A
Frequency Synthesis
Synthesis circuit: phase locked loop
Type of phase locked loop: analog
Voice
access point for voice: control channel frequency codes
voice protocol: analog
voice service: GSM
encryption: unencrypted
codec for voice stream: N/A
data transmission and reception rate for voice (synchronous): N/A
duplex: yes
duplex type: separate channel for each direction of the conversation using a different frequency
Text messages
access point for text messages: can not receive or send text messages
protocol for text messages: N/A
text service: N/A
file type for text messages: N/A
maximum file size of text message: N/A
data transmission rate for text message: N/A
data reception rate for text message: N/A
duplex: N/A
duplex type: N/A
Photos
access point for photos: can not receive or send photos
protocol for photos: N/A
photo service: N/A
file type for photos: N/A
maximum file size of photo: N/A
duplex: N/A
duplex type: N/A
Videos
access point for videos: can not receive or send videos
protocol for videos: N/A
video service: N/A
file container for videos: N/A
codec for videos: N/A
duplex: N/A
duplex type: N/A
Internet
access point for internet: can not connect to the internet
IP address: N/A
protocol for internet: N/A
internet service: N/A
file types from internet supported: N/A
total data rate: N/A
duplex: N/A
duplex type: N/A
2G
Modulation
modulation scheme: FM (digital)
Amplification
RF gain stage: op Amp
AF gain stage: op Amp
modem gain stage: op Amp
Frequency Synthesis
Synthesis circuit: phase locked loop
Type of phase locked loop: digital
Voice
access point for voice: control channel frequency codes
voice service: GSM
voice protocol: CDMA
encryption: CDMA
codec for voice stream: Windows Media Audio mono 8,000khz sample rate 4kbps bit rate
duplex: Yes
duplex type: separate channel for each direction of conversation using different frequency
Text messages
access point for text messages: control channel frequency codes
protocol for text messages: dial up CDMA
file type for text messages: *.txt
maximum file size of text message: 160 bytes
data transmission rate for text message: 80 bytes/second
data reception rate for text message: 80 bytes/second
text message service: GSM and SMS
duplex: No
duplex type: N/A
Photos
access point for photos: control channel frequency codes
protocol for photos: dial up CDMA
photo service: GPRS
file type for photos: *.JPEG
maximum file size of photo: 100kb
max data rate: 144kbps
duplex: No
duplex type: N/A
Videos
access point for videos: control channel frequency codes
protocol for videos: dial up CDMA
video service: GPRS
file container for videos: *.MPEG, *.MPG, *.MP4, *.FLV, *.3GP, *.WMV
codec for videos: a codec that will force to 240p 1,000kbps video and 44.1khz 16 bit mono 64kbps audio
max data rate: 144kbps
duplex: No
duplex type: N/A
Internet
access point for internet: control channel frequency codes
IP address: dynamic IP address assignment assigned by tower
protocol for internet: HTTP over CDMA
file types from internet supported: *.html, *.js
max data rate: 144kbps
max transmit data rate: 44kbps
max receive data rate: 100kbps
duplex: Yes
duplex type: dial up connection over voice channels
3G
Modulation
modulation scheme: FM (digital)
Amplification
RF gain stage: op Amp
AF gain stage: op Amp
modem gain stage: op Amp
Frequency Synthesis
Synthesis circuit: phase locked loop
Type of phase locked loop: digital
Voice
access point for voice: control channel frequency codes
voice service: GSM
voice protocol: CDMA
encryption: CDMA
codec for voice stream: Windows Media Audio mono 8,000khz sample rate 4kbps bit rate
duplex: Yes
duplex type: separate channel for each direction of conversation using different frequency
Text messages
access point for text messages: control channel frequency codes
protocol for text messages: dial up CDMA
file type for text messages: *.txt
maximum file size of text message: 160 bytes
data transmission rate for text message: 80 bytes/second
data reception rate for text message: 80 bytes/second
text message service: GSM and SMS
Photos
access point for photos: control channel frequency codes
protocol for photos: broadband CDMA
photo service: GPRS
file type for photos: *.JPEG
maximum file size of photo: as big as camera resolution will allow
max data rate: 1.5Mbps
duplex: No
duplex type: N/A
Videos
access point for videos: control channel frequency codes
protocol for videos: broadband CDMA
file container for videos: *.MPEG, *.MPG, *.MP4, *.FLV, *.3GP, *.WMV
codec for videos: a codec that will force to 240p 1,000kbps video and 44.1khz 16 bit mono 64kbps audio
max data rate: 1.5Mbps
Internet
access point for internet: control channel frequency codes
IP address: dynamic IP address assignment assigned by tower
protocol for internet: HTTP over CDMA
file types from internet supported: *.html, *.js, *.JPEG, *.MPEG, *.MPG, *.MP4, *.FLV, *.3GP, *.WMV, *.WAV, *.mp3,
*.AAC, *.FLAC
max data rate: 1.5Mbps
transmit data rate: 500kbps
receive data rate: 1Mbps
4G
Modulation
modulation scheme: QAM USB
Amplification
RF gain stage: op Amp
AF gain stage: op Amp
modem gain stage: op Amp
Frequency Synthesis
Synthesis circuit: phase locked loop
Type of phase locked loop: digital
Voice
access point for voice: IP address
voice service: 4G LTE
voice protocol: IP
encryption: IP
codec for voice stream: Windows Media Audio mono 8,000khz sample rate 4kbps bit rate
duplex: Yes
duplex type: USB over IP
Text messages
access point for text messages: control channel frequency codes
protocol for text messages: dial up CDMA
file type for text messages: *.txt
maximum file size of text message: 160 bytes
data transmission rate for text message: 80 bytes/second
data reception rate for text message: 80 bytes/second
text message service: GSM and SMS
Photos
access point for photos: IP address
protocol for photos: IP
photo service: 4G LTE
file type for photos: *.JPEG
maximum file size of photo: as big as camera resolution will allow
max data rate: 1.5Mbps
duplex: Yes
duplex type: USB over IP
Videos
access point for videos: IP address
protocol for videos: IP
file container for videos: *.MPEG, *.MPG, *.MP4, *.FLV, *.3GP, *.WMV
codec for videos: a codec that will force to 240p 1,000kbps video and 44.1khz 16 bit mono 64kbps audio
max data rate: 1.5Mbps
duplex: Yes
duplex type: USB over IP
Internet
access point for internet: control channel frequency codes
IP address:static IP like on PC unless use proxy
protocol for internet: HTTP over IP
file types from internet supported: *.html, *.js, *.JPEG, *.MPEG, *.MPG, *.MP4, *.FLV, *.3GP, *.WMV, *.WAV, *.mp3,
*.AAC, *.FLAC
max data rate: 4Mbps
transmit data rate: 1Mbps
receive data rate: 3Mbps
Is this correct as follows?:
1G
Modulation
modulation scheme: FM (analog)
Amplification
RF gain stage: class A transistor
AF gain stage: class A transistor
modem gain stage: N/A
Frequency Synthesis
Synthesis circuit: phase locked loop
Type of phase locked loop: analog
Voice
access point for voice: control channel frequency codes
voice protocol: analog
voice service: GSM
encryption: unencrypted
codec for voice stream: N/A
data transmission and reception rate for voice (synchronous): N/A
duplex: yes
duplex type: separate channel for each direction of the conversation using a different frequency
Text messages
access point for text messages: can not receive or send text messages
protocol for text messages: N/A
text service: N/A
file type for text messages: N/A
maximum file size of text message: N/A
data transmission rate for text message: N/A
data reception rate for text message: N/A
duplex: N/A
duplex type: N/A
Photos
access point for photos: can not receive or send photos
protocol for photos: N/A
photo service: N/A
file type for photos: N/A
maximum file size of photo: N/A
duplex: N/A
duplex type: N/A
Videos
access point for videos: can not receive or send videos
protocol for videos: N/A
video service: N/A
file container for videos: N/A
codec for videos: N/A
duplex: N/A
duplex type: N/A
Internet
access point for internet: can not connect to the internet
IP address: N/A
protocol for internet: N/A
internet service: N/A
file types from internet supported: N/A
total data rate: N/A
duplex: N/A
duplex type: N/A
2G
Modulation
modulation scheme: FM (digital)
Amplification
RF gain stage: op Amp
AF gain stage: op Amp
modem gain stage: op Amp
Frequency Synthesis
Synthesis circuit: phase locked loop
Type of phase locked loop: digital
Voice
access point for voice: control channel frequency codes
voice service: GSM
voice protocol: CDMA
encryption: CDMA
codec for voice stream: Windows Media Audio mono 8,000khz sample rate 4kbps bit rate
duplex: Yes
duplex type: separate channel for each direction of conversation using different frequency
Text messages
access point for text messages: control channel frequency codes
protocol for text messages: dial up CDMA
file type for text messages: *.txt
maximum file size of text message: 160 bytes
data transmission rate for text message: 80 bytes/second
data reception rate for text message: 80 bytes/second
text message service: GSM and SMS
duplex: No
duplex type: N/A
Photos
access point for photos: control channel frequency codes
protocol for photos: dial up CDMA
photo service: GPRS
file type for photos: *.JPEG
maximum file size of photo: 100kb
max data rate: 144kbps
duplex: No
duplex type: N/A
Videos
access point for videos: control channel frequency codes
protocol for videos: dial up CDMA
video service: GPRS
file container for videos: *.MPEG, *.MPG, *.MP4, *.FLV, *.3GP, *.WMV
codec for videos: a codec that will force to 240p 1,000kbps video and 44.1khz 16 bit mono 64kbps audio
max data rate: 144kbps
duplex: No
duplex type: N/A
Internet
access point for internet: control channel frequency codes
IP address: dynamic IP address assignment assigned by tower
protocol for internet: HTTP over CDMA
file types from internet supported: *.html, *.js
max data rate: 144kbps
max transmit data rate: 44kbps
max receive data rate: 100kbps
duplex: Yes
duplex type: dial up connection over voice channels
3G
Modulation
modulation scheme: FM (digital)
Amplification
RF gain stage: op Amp
AF gain stage: op Amp
modem gain stage: op Amp
Frequency Synthesis
Synthesis circuit: phase locked loop
Type of phase locked loop: digital
Voice
access point for voice: control channel frequency codes
voice service: GSM
voice protocol: CDMA
encryption: CDMA
codec for voice stream: Windows Media Audio mono 8,000khz sample rate 4kbps bit rate
duplex: Yes
duplex type: separate channel for each direction of conversation using different frequency
Text messages
access point for text messages: control channel frequency codes
protocol for text messages: dial up CDMA
file type for text messages: *.txt
maximum file size of text message: 160 bytes
data transmission rate for text message: 80 bytes/second
data reception rate for text message: 80 bytes/second
text message service: GSM and SMS
Photos
access point for photos: control channel frequency codes
protocol for photos: broadband CDMA
photo service: GPRS
file type for photos: *.JPEG
maximum file size of photo: as big as camera resolution will allow
max data rate: 1.5Mbps
duplex: No
duplex type: N/A
Videos
access point for videos: control channel frequency codes
protocol for videos: broadband CDMA
file container for videos: *.MPEG, *.MPG, *.MP4, *.FLV, *.3GP, *.WMV
codec for videos: a codec that will force to 240p 1,000kbps video and 44.1khz 16 bit mono 64kbps audio
max data rate: 1.5Mbps
Internet
access point for internet: control channel frequency codes
IP address: dynamic IP address assignment assigned by tower
protocol for internet: HTTP over CDMA
file types from internet supported: *.html, *.js, *.JPEG, *.MPEG, *.MPG, *.MP4, *.FLV, *.3GP, *.WMV, *.WAV, *.mp3,
*.AAC, *.FLAC
max data rate: 1.5Mbps
transmit data rate: 500kbps
receive data rate: 1Mbps
4G
Modulation
modulation scheme: QAM USB
Amplification
RF gain stage: op Amp
AF gain stage: op Amp
modem gain stage: op Amp
Frequency Synthesis
Synthesis circuit: phase locked loop
Type of phase locked loop: digital
Voice
access point for voice: IP address
voice service: 4G LTE
voice protocol: IP
encryption: IP
codec for voice stream: Windows Media Audio mono 8,000khz sample rate 4kbps bit rate
duplex: Yes
duplex type: USB over IP
Text messages
access point for text messages: control channel frequency codes
protocol for text messages: dial up CDMA
file type for text messages: *.txt
maximum file size of text message: 160 bytes
data transmission rate for text message: 80 bytes/second
data reception rate for text message: 80 bytes/second
text message service: GSM and SMS
Photos
access point for photos: IP address
protocol for photos: IP
photo service: 4G LTE
file type for photos: *.JPEG
maximum file size of photo: as big as camera resolution will allow
max data rate: 1.5Mbps
duplex: Yes
duplex type: USB over IP
Videos
access point for videos: IP address
protocol for videos: IP
file container for videos: *.MPEG, *.MPG, *.MP4, *.FLV, *.3GP, *.WMV
codec for videos: a codec that will force to 240p 1,000kbps video and 44.1khz 16 bit mono 64kbps audio
max data rate: 1.5Mbps
duplex: Yes
duplex type: USB over IP
Internet
access point for internet: control channel frequency codes
IP address:static IP like on PC unless use proxy
protocol for internet: HTTP over IP
file types from internet supported: *.html, *.js, *.JPEG, *.MPEG, *.MPG, *.MP4, *.FLV, *.3GP, *.WMV, *.WAV, *.mp3,
*.AAC, *.FLAC
max data rate: 4Mbps
transmit data rate: 1Mbps
receive data rate: 3Mbps
