Method and apparatus for reducing signaling in a core network

摘要

The disclosure relates to a method and apparatus in telecommunications, and particularly to reducing signaling in a core network involved in changes of states of a wireless terminal (4). According to the disclosure a reduced context is allocated based on parameters received by a base station (2). The reduced context is used by the base station for reconfiguring a RRC connection between the wireless terminal (4) and the base station (2) by means of the reduced context, such that the signaling is hidden from a Serving GateWay, SGW (10).

主权项

1. A method performed by an evolved Node B, eNB, for reducing signaling in a Core Network, CN, relating to state changes in a User Equipment, UE, said eNB having a Radio Resource Control, RRC, connection with the UE, the method comprising,
sending a request for a UE context release to a Mobile Management Entity, MME, in response to that the UE has been inactive during a predetermined time, receiving from the MME, a command for a UE context release together with parameters for enabling local eNB paging of the UE, releasing the RRC connection, allocating a reduced context based on the received parameters and storing the reduced context in a memory of the eNB, retrieving the stored reduced context after receiving a downlink packet to the UE and after receiving a service request from the UE requesting that the UE return to a connected state, reconfiguring the RRC connection by means of the reduced context, such that the signaling is hidden from a Serving GateWay, SGW, of the CN, and paging the UE locally by means of the reduced context.