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What is the concept of bearer control mode in LTE and where exactly it has significance ?

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What is the concept of bearer control mode in LTE and where exactly it has significance ?
posted Jun 15, 2015 by Harshita

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1 Answer

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Bearer Control Mode is basically used to tell bearer creation can happen only from UE side or both from UE and N/W side.

In LTE it is always UE/NE. Bearer creation can happen both from N/W side when PCRF sends RAR message with Charging-Rule-Install. From UE side bearer creation request will come when MME will send Bearer Resource Command

In case of legacy network Bearer Control Mode depends on 2 factor if the SGSN and or UE supports UE/NW mode. If either of them does not support bearer creation from N/W side Bearer Control Mide is sent to PCRF from PGW as UE only.

In case a UE handovers from LTE to 3GPP-GRPS in that case based on SGSN capability BCM could be changed to UE only.

Hope it helps.

Regards,
Peeyush Sharma

answer Jun 15, 2015 by Peeyush Sharma
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