Description  Claims  Drawing  Cited references 

US2012051297A1   [0006] 
US2012082099A1   [0007] 
WO2011087406A   [0027]  [0033]  [0033] 
US20150230267A1   [0030]  [0034]  [0075] 

Use of RA back-off indicator   [0007] 
E-Mail Dicussion and companies view on the need for MAC BI   [0007] 
3rd Generation Partnership Project; Technical Specification Group Services and System Aspects; System improvements for Machine-Type Communications (MTC) (Release 11)   [0007] 
Random Access Mechanism for RAN Overload Control in LTE/LTE-A Networks   [0007]