US Patent No. 10,772,148

METHOD AND APPARATUS FOR MANAGING PDU SESSION BETWEEN BASE STATION AND CORE NETWORK IN NEXT-GENERATION WIRELESS NETWORK


Patent No. 10,772,148
Issue Date September 08, 2020
Title Method And Apparatus For Managing Pdu Session Between Base Station And Core Network In Next-generation Wireless Network
Inventorship Ha Sung Kim, Seoul (KR)
Assignee KT CORPORATION, Gyeonggi-do (KR)

Claim of US Patent No. 10,772,148

1. A method for managing a Packet Data Unit (PDU) session by a base station, the method comprising:determining whether a requirement of a quality of service (QoS) flow for a terminal is satisfied;
transmitting, to a core network entity, a PDU session resource notification message indicating that the requirement is not satisfied when the requirement is not satisfied;
receiving one of a PDU session resource modification message for requesting PDU session resource modification and a PDU session resource release message for requesting PDU session resource release from the core network entity; and
performing one of the PDU session resource modification and the PDU session resource release in response to the received one and transmitting a processing result to the core network entity,
wherein the PDU session resource notification message, the PDU session resource modification message, and the PDU session resource release message are transmitted through an New Generation-Application Protocol (NGAP) message.