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In LTE only always RRC reconfiguration message is used but why not rab, physical, transport reconfiguration messages?

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In LTE only always RRC reconfiguration message is used but why not rab, physical, transport reconfiguration messages?
posted May 27, 2014 by Pankaj

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@pankaj: check if this is useful http://tech.queryhome.com/23947/lte-what-is-the-use-rrc-connection-reconfiguration-message (check the second answer if satisfy your query)

2 Answers

+1 vote

I just answered similar query on queryhome answering here again -

In LTE, RRC CONNECTION RECONFIGURATION is the only message used to perform all logical, transport, and physical channel configurations where as in case UMTS, there exists Transport Channel, Physical Channel and Radio Bearer Reconfiguration messages so to answer your query this is because of the same can is achieved by the single message.

Read more at: http://tech.queryhome.com/23947/lte-what-is-the-use-rrc-connection-reconfiguration-message

answer May 27, 2014 by anonymous
agreed. Even I have same answer :)
0 votes

Just to add to the previous answer, if you look at 36.336 RRC specs and look for the RRC messages, you can see separate IEs for logical , transport and phy configuration etc.. as part of the RRC setup and reconfiguration message.

answer May 27, 2014 by Shyam Purkayastha
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+2 votes

During attach procedure, UE sends "Attach Request" along with "RRC Connection Setup Complete", eNodeB sends "Attach Accept" along with "RRC Connection Reconfiguration then why UE does not send "Attach Complete" along with "RRC Connection Reconfiguration Complete" message ? What could be the reason for defining the messages so ?

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