Patents by Inventor Yu-Chieh Tien

Yu-Chieh Tien has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Enhanced 5GSM State Mapping when Interworking
    Publication number: 20200053819
    Abstract: A method of 5G session management (5GSM) state mapping is proposed when interworking. For each PDU session in 5GSM state of PDU SESSION active, PDU SESSION MODIFICATION PENDING, or PDU SESSION INACTIVE PENDING, UE maps the PDU session to a PDN connection in 4G ESM state BEARER CONTEXT ACTIVE. For any other PDU session in 5GSM state of PDU SESSION inactive, or PDU SESSION ACTIVE PENDING, UE maps the PDU session to a PDN connection in 4G ESM state BEARER CONTEXT INACTIVE.
    Type: Application
    Filed: August 6, 2019
    Publication date: February 13, 2020
    Inventors: Chien-Chun Huang-Fu, Yu-Chieh Tien, Shang-Ru Mo, Chi-Hsien Chen
  • Enhanced Procedure Transaction ID Handling
    Publication number: 20200008268
    Abstract: A method for Procedure Transaction Identity (PTI) exception handling on protocol data unit (PDU) session modification and establishment procedure is proposed. If a UE receives a PDU SESSION MODIFICATION COMMAND message in which the PTI value is an assigned value that does not match any PTI in use, the UE stays in the current 5GSM state and sends a 5GSM STATUS message including 5GSM cause #47 “PTI mismatch”, and the network will send another COMMAND message with the correct PTI value. If the UE receives a PDU SESSION ESTABLISHMENT ACCEPT or REJECT message in which the PTI value is an assigned value that does not match any PTI in use, the UE responds with a 5GSM STATUS message including 5GSM cause #47 “PTI mismatch”, and the network will send another ACCEPT or REJECT message with the correct PTI value.
    Type: Application
    Filed: June 26, 2019
    Publication date: January 2, 2020
    Inventors: Chien-Chun Huang-Fu, Yu-Chieh Tien, Chi-Hsien Chen, Shang-Ru Mo