2results about How to "Reduce signaling" patented technology

This invention provides a user group handover method and system in low-Earth orbit (LEO) satellite communication. The method includes: acquiring multi-dimensional feature parameters for each user, including service quality-related parameters; grouping all users into groups based on the multi-dimensional feature parameters using a clustering algorithm with service quality decision; selecting the user with the highest service quality score in each group as the group leader; and having each group leader formulate a satellite handover decision for its group based on a reinforcement learning algorithm and the current network state, and then disseminating the satellite handover decision to other users in the group to trigger a unified satellite handover action among group members. This invention enables efficient, fair, and low-overhead group handover for a large number of users in LEO satellite communication networks.

The application provides a data transmission method and device, equipment and a storage medium, which are applied to an access and mobility management function (AMF), and include the following steps: receiving downlink data directly issued by a network exposure function (NEF); when it is determined that a current state of a UE is unreachable, it is determined whether the AMF is allowed to cache the downlink data according to a caching instruction of the NEF; and when it is determined that the AMF is allowed to cache the downlink data, the downlink data is cached, so that the related signaling of the core network is reduced, and the time delay of sending Internet of Things data to the UE is reduced.