Mapping PMIPv6 (S5) tunnel to GTP (S1-U) tunnels for an UE

Sibaranjan

Hello

We have following doubt regarding the routing of the downlink packets for an UE.

When a single UE is doing one default bearer and multiple dedicated bearer, then at the S5 interface (when PMIPv6 tunnels are used) the PMIPv6 tunnels are forms as per the UE IP addresses. But same down link data packet when reaches S1-U interface then multiple GTP tunnels are formed one for each bearer.

What logic do the S-GW use to distinguish the data packet (downlink) such that data from a single PMIPv6 tunnels is routed through different GTP tunnels (each GTP tunnels for one bearer) .

Regards
Sibaranjan Pattnayak

Sibaranjan · Posted: Thu May 21, 2009 10:23 pm Post subject:

Refer Section 4.10 "QoS Concepts" of 3GPP TS 23.402 for the explanation of S1 bearer binding.