U have lost data connectivity since u have moved out of your home network?

Question

I got these message when I was in moving in bus by surfing.
"U have lost data connectivity since u have moved out of your home network...."

I have full signal and suddenly it dropped from h+ mode to r mode. Please explain me the reason.

What are the internal message's which UE and enb follow ups between them.

Comments

Your data roaming is turned off hence u are not able to access data?

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Hi Salil is tat basic answer for what i have asked....i did not get u...can u elaborate it....and reply what are all the internal messages between Nodeb and UE....my mobile is 3G mobile...sry for quoting it under lte signalling....

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I did not get your question, in which scenario you are looking for the internal message.

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i will explain briefly

real example : am in a moving bus.....and i was checking my mails using my 3G handset....and i have full network signal....intially the mode is HSPA+(H+) and suddendly it dropped to R mode...although having full signal....and report came as showing

[     U have lost data connectivity since u have moved out of your home network.....] this...no speed nothing....

what are all the internal messages between UE n Nodeb.....what ever u can ...tell me...showing appropriate messages between which and which