Telefonaktiebolaget Lm Ericsson (publ)

Deqin Zhan

Juying Gan

Xinyu Zhang

Stefan Rommer

Xiao Li

Dinand Roeland

Yunjie Lu

Jinyin Zhu

Yingjiao He

Gang Ren

Kaiyuan Huang

Wu Wang

Hanbing Zhang

Yiming Wu

Chengqiong Xie

Yidong Yao

Embodiments of the present disclosure provides a method and an apparatus for subscribing a notification of a change of a network function. A method for subscribing to notification of a change of a network function may comprise: transmitting (S) a subscription message to a monitoring network function; and receiving (S) a notification from the monitoring network function to notify a change from the network function whose status is required to be monitored. The subscription message indicates of the network function. The attribute comprises a serving scope indicating one or more target served area of the network function whose status is required to be monitored. According to embodiments of the present disclosure, a simple and fast implementation for subscribing notification of change of network function may be achieved. Particularly, both the response time and the accuracy of the notification about a change of a subscribed network function may be improved.

Method and apparatus for subscribing change notification of network function

The present disclosure proposes a proxy method, comprising receiving a request for a service in a first architecture from a requester network function (NF) in a second architecture, obtaining a response of the service from a serving NF on behalf of the requester NF, and sending a further response to the requester NF based on the response of the service. The proxy method may be implemented on a NF or a function entity within a NF.

Method and device for proxy between different architectures

A method in a communication network for facilitating handover of a user equipment (UE) from access via a source access path to access via a target access path is provided. An internet protocol (IP) access is provided to the UE via the source access path and an indication that the UE has configured a communication interface for the target access path is obtained. Switching from providing IP access via the source access path to providing IP access to the UE via the target access path is performed. Further, instructions for releasing communication resources for the source access path are sent after the indication that the communication interface has been configured for the target access path is obtained.

Minimisation of handover gap time in the context of S2a IP session mobility

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Shanghai, China

Deqin Zhan