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LTE: How does an UE decide that it has to send Bearer Resource Allocation or Modification Request to MME ?

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LTE: How does an UE decide that it has to send Bearer Resource Allocation or Modification Request to MME ?
posted Jun 26, 2014 by Ganesh

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+2 votes

Bearer Resource Allocation Request with qci=x send from UE to Network. but that qci is already present in one of dedicated bearer then pgw is sending reject w.r.t Bearer Resource Allocation Request .From MME side we are sending BEARER RESOURCE ALLOCATION REJECT with cause " request rejected by Serving GW or PDN GW ". Then again UE is triggering BEARER RESOURCE ALLOCATION REQUEST.

we tried with cause " insufficient resources with timer value " then also UE is triggering BEARER RESOURCE ALLOCATION REQUEST.

so , how we can stop the trigger of BEARER RESOURCE ALLOCATION REQUEST once it get rejected from network.

+2 votes

Does UE send APN information while registering with network using the "Attach request" message ?
How MME come to know that UE should attach to APN "XYZ" ?

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