gsm 3g gprs umts lte schematics
Post on 24-Oct-2014
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MS Block Diagram
TRX Block Diagram
BTS s in Standard Configuration
BTS s in Umbrella Configuration
BTS s in Sectored Configuration
Block Diagram of BSC
Possible positions for TRAU and associated trade-off
The NSS schematic
Abis Interface Channel Configuration – An Example
Serial Connection of BTS s to BSC in a line topology
Serial Connection of BTS s to BSC in a ring topology
Connection of BTS s to BSC in a start configuration
The OSI protocol stack on the Abis interface
LAPD frames
The format of an LAPD frame modulo 128
The format of an LAPD frame modulo 8
TEI & C/R
Possible values of C/R bit
Frame Types of the Abis Interface
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