Abstract: Embodiments of the present disclosure relate to methods and apparatuses for secret key generation. According to an embodiment of the present disclosure, a user equipment can include: a transceiver; and a processor coupled to the transceiver and configured to: obtain first configuration information for generating a secret key, wherein the first configuration information indicates a quantization scheme; and generate the secret key based on the first configuration information.

Abstract: Embodiments of the present disclosure relate to methods and apparatus for managing caching in mobile edge computing systems. According to an embodiment of the present disclosure, a method includes: determining a caching policy for caching a group of content items in a plurality of edge nodes, wherein determining the cache policy comprises determining whether to cache a content item in an edge node at least based on a popularity of the content item and a latency between the edge node and a group of base stations; and transmitting a content indication to each edge node of the plurality of edge nodes based on the determined caching polity respectively, herein the content indication transmitted to a respective edge node comprises one or more identifiers corresponding to one or more content items determined to be cached in the respective edge node.