公开(公告)号：US11246064B2

公开(公告)日：2022-02-08

申请号：US16866799

申请日：2020-05-05

Applicant: MEDIATEK INC.

Inventor： Chien-Chun Huang-Fu ,  Po Kuang Lu ,  Chi-Hsien Chen ,  Shang-Ru Mo ,  Bo-Hun Chen

IPC: H04W36/00 ,  H04W76/25 ,  H04W76/11 ,  H04W76/20 ,  H04W76/22

Abstract: A method of handling a Packet Data Network (PDN) connection to support interworking to 5G system (5GS) is proposed. In a first novel aspect, both UE and the network stores mapped 5GSM parameters of a corresponding Protocol Data Unit (PDU) session when inter-system change from S1 (4G, EPS) mode to A/Gb (2G) mode or Iu (3G, UMTS) mode. In a second novel aspect, the PDN connection is enable to support interworking to 5GS, and the UE is allowed to allocate and indicate the PDU session ID by using the bearer resource modification procedure in EPS, or the mapped 5GSM parameters can be provided and modified in 2G/3G system.

公开(公告)号：US11910488B2

公开(公告)日：2024-02-20

申请号：US18117390

申请日：2023-03-03

Applicant: MEDIATEK INC.

Inventor： Chien-Chun Huang-Fu ,  Chi-Hsien Chen ,  Po-Ying Chuang ,  Po Kuang Lu

IPC: H04W80/10 ,  H04W8/08 ,  H04W28/02

CPC classification number: H04W80/10 ,  H04W8/08 ,  H04W28/0247 ,  H04W28/0263

Abstract: A method of enhancing IP packet forwarding feature support after interworking is proposed. When a PDU session in 5GS is transferred to a PDN connection in EPS, the UE shall assume the feature is supported after inter-system change from 5GS to EPS. When a PDN connection is established in EPS, the network indicated that the feature is not supported, and the network provided 5GSM parameters for ESM/5GSM interworking for this PDN connection, then UE shall assume the feature is supported after inter-system change from EPS to 5GS, the UE shall also assume the feature is supported after inter-system change from 5GS back to EPS. The IP packet forwarding features include PS data off and local IP address in TFT.

公开(公告)号：US20230209654A1

公开(公告)日：2023-06-29

申请号：US18117390

申请日：2023-03-03

Applicant: MEDIATEK INC.

Inventor： CHIEN-CHUN HUANG-FU ,  Chi-Hsien Chen ,  Po-Ying Chuang ,  Po Kuang Lu

IPC: H04W80/10 ,  H04W8/08 ,  H04W28/02

CPC classification number: H04W80/10 ,  H04W8/08 ,  H04W28/0263 ,  H04W28/0247

Abstract: A method of enhancing IP packet forwarding feature support after interworking is proposed. When a PDU session in 5GS is transferred to a PDN connection in EPS, the UE shall assume the feature is supported after inter-system change from 5GS to EPS. When a PDN connection is established in EPS, the network indicated that the feature is not supported, and the network provided 5GSM parameters for ESM/5GSM interworking for this PDN connection, then UE shall assume the feature is supported after inter-system change from EPS to 5GS, the UE shall also assume the feature is supported after inter-system change from 5GS back to EPS. The IP packet forwarding features include PS data off and local IP address in TFT.

公开(公告)号：US11622415B2

公开(公告)日：2023-04-04

申请号：US16838186

申请日：2020-04-02

Applicant: MEDIATEK INC.

Inventor： Chien-Chun Huang-Fu ,  Chi-Hsien Chen ,  Po-Ying Chuang ,  Po Kuang Lu

IPC: H04W80/10 ,  H04W8/08 ,  H04W28/02

Abstract: A method of enhancing IP packet forwarding feature support after interworking is proposed. When a PDU session in 5GS is transferred to a PDN connection in EPS, the UE shall assume the feature is supported after inter-system change from 5GS to EPS. When a PDN connection is established in EPS, the network indicated that the feature is not supported, and the network provided 5GSM parameters for ESM/5GSM interworking for this PDN connection, then UE shall assume the feature is supported after inter-system change from EPS to 5GS, the UE shall also assume the feature is supported after inter-system change from 5GS back to EPS. The IP packet forwarding features include PS data off and local IP address in TFT.

公开(公告)号：US20200323028A1

公开(公告)日：2020-10-08

申请号：US16838186

申请日：2020-04-02

Applicant: MEDIATEK INC.

Inventor： Chien-Chun Huang-Fu ,  Chi-Hsien Chen ,  Po-Ying Chuang ,  Po Kuang Lu

IPC: H04W80/10 ,  H04W28/02 ,  H04W8/08

Abstract: A method of enhancing IP packet forwarding feature support after interworking is proposed. When a PDU session in 5GS is transferred to a PDN connection in EPS, the UE shall assume the feature is supported after inter-system change from 5GS to EPS. When a PDN connection is established in EPS, the network indicated that the feature is not supported, and the network provided 5GSM parameters for ESM/5GSM interworking for this PDN connection, then UE shall assume the feature is supported after inter-system change from EPS to 5GS, the UE shall also assume the feature is supported after inter-system change from 5GS back to EPS. The IP packet forwarding features include PS data off and local IP address in TFT.