公开(公告)号：US20240196307A1

公开(公告)日：2024-06-13

申请号：US18521550

申请日：2023-11-28

Applicant: MediaTek Inc.

Inventor： Yuan-Chieh Lin ,  Chia-Lin Lai

IPC: H04W48/02 ,  H04W48/18

CPC classification number: H04W48/02 ,  H04W48/18 ,  H04W84/042

Abstract: Various solutions for enhanced closed access group (CAG) selection in manual network selection mode are described. An apparatus may determine that the apparatus supports CAG and operates in a manual network selection mode. The apparatus may detect a CAG cell associated with a CAG identifier (ID) in an allowed CAG list. The apparatus may indicate to a user whether the CAG ID is authorized based on time validity information associated with the CAG ID in the allowed CAG list.

公开(公告)号：US20240114591A1

公开(公告)日：2024-04-04

申请号：US18371549

申请日：2023-09-22

Applicant: Mediatek Inc.

Inventor： Yu-Hsin Lin ,  Shao-Liang Yeh ,  Yuan-Chieh Lin

IPC: H04W76/40 ,  H04W76/10

CPC classification number: H04W76/40 ,  H04W76/10

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a UE. The UE sends a request message to a core network. The request message requests joining one or more requested multicast broadcast service (MBS) sessions. The UE receives a response message from the core network. The response message contains received MBS information indicating one or more admitted MBS sessions. The received MBS information includes a respective IP address type (IPAT) field. The IPAT field indicates a type of an IP address corresponding to each of the one or more admitted MBS sessions. The UE decodes the IP address corresponding to each of the one or more admitted MBS sessions according to the type indicated by the respective IPAT field.

公开(公告)号：US20240057217A1

公开(公告)日：2024-02-15

申请号：US18220189

申请日：2023-07-10

Applicant: MEDIATEK INC.

Inventor： Yu-Hsin Lin ,  Chi-Hsien Chen ,  Yuan-Chieh Lin

IPC: H04W76/40 ,  H04W76/12

CPC classification number: H04W76/40 ,  H04W76/12

Abstract: A method for requesting to join an MBS session via a PDU session establishment procedure for existing PDU or MA PDU session is provided. A UE sends a PDU session establishment request message that includes a requested MBS container IE to request to join an MBS session. The request message initiates a PDU session establishment procedure, with a request type indicating that the PDU session establishment procedure is for an existing PDU session, or for an MA PDU session. A specific request type is used to indicate: 1)HANDOVER 5G PDU SESSION FROM NON-3GPP TO 3GPP; 2) TRANSFER 4G PDN CONNECTION (EPS) TO 5G; 3) TRANSFER 4G PDN CONNECTION (NON-3GPP) TO 5G; 4) ESTABLISH UP RESOURCE OVER 3GPP FOR 5G MA PDU; and 5) TRANSFER MA PDU (PDN LEG IN EPS) TO 5G MA PDU.

公开(公告)号：US20240057200A1

公开(公告)日：2024-02-15

申请号：US18225067

申请日：2023-07-21

Applicant: MEDIATEK INC.

Inventor： Yu-Hsin Lin ,  Yuan-Chieh Lin ,  Cheng-Hsiao Ko ,  Shang-Ru Mo

IPC: H04W76/27 ,  H04W76/10

CPC classification number: H04W76/27 ,  H04W76/10 ,  H04W80/10

Abstract: A method of performing MT services using an indication to avoid barring in access control is provided. UE sends an indication related to an MT service to the NAS layer when the MT service starts, or when a corresponding communication session of the MT service is handover to 3GPP access. Once the service has successfully been set up, then as long as the service is ongoing, the following access attempts are allowed to proceed without further access control checking in order to avoid barring: MMTEL voice, MMTEL video, and SMSoIP. In one novel aspect, based on the indication provided to the NAS layer when the MT service starts or when handover to 3GPP access occurs, UE skips access control after UE goes to idle mode and establishes an RRC connection to resume the MT service.

公开(公告)号：US20240056900A1

公开(公告)日：2024-02-15

申请号：US18224690

申请日：2023-07-21

Applicant: MEDIATEK INC.

Inventor： Yu-Hsin Lin ,  Yuan-Chieh Lin ,  Chi-Hsien Chen

IPC: H04W36/00 ,  H04W76/30

CPC classification number: H04W36/0007 ,  H04W36/0022 ,  H04W76/30

Abstract: A method for maintaining MBS session when UE performs intersystem change is provided. UE maintains a PDU session in 5G network. UE then joins an MBS session for receiving MBS service over the associated PDU session. Later on, UE performs intersystem change from 5G to 2/3/4G. The PDU session is then released or transferred to a PDN connection. From UE perspective, UE determines that the released or transferred PDU session is associated with the MBS session, and therefore locally leaves the MBS session. From NW perspective, NW determines that the released or transferred PDU session is associated with the MBS session, and therefore considers the UE is removed from the MBS session.

公开(公告)号：US20240040459A1

公开(公告)日：2024-02-01

申请号：US18218099

申请日：2023-07-04

Applicant: MEDIATEK INC.

Inventor： Yuan-Chieh Lin ,  Yung-Chun Yang ,  Yu-Hsin Lin

IPC: H04W36/14 ,  H04W36/00

CPC classification number: H04W36/14 ,  H04W36/00222

Abstract: A method of performing intersystem change without N26 interface supported or not supported when a UE is registered to the same or different networks over 3GPP and non-3GPP accesses is proposed. UE registers to one or more PLMN/SNPN over 3GPP access and non-3GPP access. UE receives a REGISTRATION ACCEPT message over 3GPP access, which carries a first 5GS network feature support IE, which indicates that interworking without N26 interface not supported. UE also receives a REGISTRATION ACCEPT message over non-3GPP access, which carries a second 5GS network feature support IE, which indicates that interworking without N26 interface supported. UE ignores the second indication received over non-3GPP access and considers that N26 interface is supported for interworking. As a result, after intersystem change from 5G to 4G, UE triggers a TAU procedure over LTE in 4G EPS.

公开(公告)号：US20230362866A1

公开(公告)日：2023-11-09

申请号：US18137308

申请日：2023-04-20

Applicant: MEDIATEK INC.

Inventor： Yu-Hsin Lin ,  Yuan-Chieh Lin

IPC: H04W60/06

CPC classification number: H04W60/06

Abstract: A method of NAS signaling connection handling when a UE initiates a de-registration or detach procedure to perform network selection is proposed. To allow the UE to perform PLMN selection, the UE needs to be in idle mode. Upon the completion of a UE-initiated de-registration or detach procedure, the UE starts a guard timer, e.g., T3540/T3440. In one example, the UE starts a guard timer upon receiving a de-registration accept message. In another example, the UE starts a guard timer upon receiving a detach accept message. The UE will locally release any NAS signaling connection upon the guard timer expiry so that the UE can enter idle mode and perform PLMN selection.

公开(公告)号：US20230354239A1

公开(公告)日：2023-11-02

申请号：US18133987

申请日：2023-04-12

Applicant: MEDIATEK INC.

Inventor： Yuan-Chieh Lin ,  Chia-Lin Lai

IPC: H04W60/00 ,  H04W48/18 ,  H04W8/20

CPC classification number: H04W60/00 ,  H04W48/18 ,  H04W8/20

Abstract: A method of subscription selection for manual SNPN hosting network selection is proposed. When a UE supports accessing NPN, the UE has a 1st SNPN/PLMN subscription for accessing a selected SNPN as hosting network for localized services. If the selected SNPN is associated with validity information and validity criteria are met, the UE can register to the selected SNPN using the 1st subscription. If the UE has multiple subscriptions that can be used to access to the selected SNPN, then the UE can register to the selected SNPN using any of the subscriptions. The UE may determine which subscription to use based on whether the validity information associated with the selected SNPN that is included in the corresponding subscription, e.g., whether the selected SNPN is associated with validity information, and how long is the remaining (time) duration of the validity information.

公开(公告)号：US20230354180A1

公开(公告)日：2023-11-02

申请号：US18133913

申请日：2023-04-12

Applicant: MEDIATEK INC.

Inventor： CHIA-LIN Lai ,  Yuan-Chieh Lin

IPC: H04W48/18 ,  H04W60/04

CPC classification number: H04W48/18 ,  H04W60/04

Abstract: In accordance with one novel aspect, a method for storing multiple previously registered networks for network selection is proposed. A UE is first registered to a first SNPN or PNI-NPN(CAG)/PLMN as a non-hosting network. The UE is then registered to a second SNPN or PNI-NPN(CAG)/PLMN as a hosting network with matching validity information. When the second SNPN or PNI-NPN(CAG)/PLMN becomes non suitable, e.g., the validity criteria associated with the second SNPN/CAG are not met, the UE considers the first SNPN or PNI-NPN(CAG)/PLMN with the highest priority and registers to the first SNPN or PNI-NPN(CAG)/PLMN without searching and prioritizing other candidate networks.

公开(公告)号：US11632715B2

公开(公告)日：2023-04-18

申请号：US17313298

申请日：2021-05-06

Applicant: Mediatek Inc.

Inventor： Yuan-Chieh Lin ,  Chien-Chun Huang-Fu

IPC: H04W48/20 ,  H04W8/18 ,  H04W84/04

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a ME/UE. The ME/UE determines whether there is a closed access group (CAG) information list stored in a USIM utilized by the ME. The CAG information list includes an entry that specifying a public land mobile network (PLMN) ID and a CAG ID that in combination uniquely identify a CAG cell. When the CAG information list is detected: the ME/UE maintains the CAG information list for selecting the CAG cell for the ME to access; the ME/UE searches for the CAG cell according to the CAG information list.