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Telecom Articles by Samir Amberkar
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1.16
1.17
1.18
1.19
1.20
2.1
3.1
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3.3
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3.5
3GPP Modem
Simulator
Test Your
Knowledge
LTE UE NAS overview
UE stages
1)
Power on
√
2)
Cell/PLMN selection
√
3)
Attach
√
4)
Data transfer
√
5)
Idle mode
√
6)
Paging/Service request
√
7)
Additional bearers
√
8)
Handover
√
9)
Detach
√
Copyright © Samir Amberkar
Slide 9 of 16
Notes
LTE Allocations Explained
LTE - initial attach
LTE - TAU
LTE - service request
LTE - data flow
LTE - states attach
LTE - states TAU
LTE - states service request
LTE - dedicated bearer setup
LTE - states detach
LTE - RRC release
3GPP Modem Simulator
3GPP TS 23.401 "EPS overall"
List of all referred specifications along with their 3GPP locations is available
here
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