Method and apparatus for resource management in handover operation

摘要

A method and apparatus for resource management during handover operation includes initiating a handover from a first access network to a second access network. A policy update message is sent and a policy update confirmation message is received. A general packet radio service (GPRS) tunneling protocol (GTP) message and a radio access bearer (RAB) release message is sent and a GTP and RAB release acknowledgment is received. Connectivity is established for uplink and downlink transmission in the second access network.

主权项

1. A method for resource management using a packet data network gateway (PDN GW) during a handover operation from a first access network to a second access network, the method comprising:
sending a policy update message from the PDN GW to a policy and charging rules function (PCRF) over an interface comprising at least one of the following: an S2a interface, an S2c interface and an S5 interface; receiving, at the PDN GW, a policy update confirmation message from the PCRF over the interface; establishing, via the PDN GW, connectivity between user equipment (UE) and the PDN GW for uplink and downlink transmission over the second access network; and releasing, via the PDN GW, resources associated with the first access network; wherein the first access network comprises either a third generation partnership project (3GPP) access network or a trusted non-3GPP Internet Protocol (IP) access network, and the second access network comprises either a third generation partnership project (3GPP) access network or a trusted non-3GPP Internet Protocol (IP) access network.