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公开(公告)号：US20160113053A1
公开(公告)日：2016-04-21
申请号：US14884896
申请日：2015-10-16
Applicant: MEDIATEK INC.
Inventor： Po-Ying Chuang , Chi-Hsien Chen , Chien-Chun Huang-Fu
IPC: H04W76/02
CPC classification number: H04W76/18
Abstract: A method of enhanced session management procedure is proposed. A user equipment, upon receiving a rejected PDN connectivity request with a cause code, automatically alters the rejected factor to fit network restrictions based on the received cause code. The UE then retries the PDN connectivity procedure by sending a subsequent PDN connectivity request using the altered factor. By automatically altering the rejected factor and reattempting to establish an EPS bearer for data service without user interaction, possible permanent rejection can be avoided in case of user error or unawareness.
Abstract translation: 提出了一种增强会话管理过程的方法。 用户设备在接收到具有原因代码的拒绝的PDN连接请求后，根据所接收到的原因代码自动地改变被拒绝的因子以适应网络限制。 然后，UE通过使用改变的因子发送后续PDN连接请求来重试PDN连接过程。 通过自动更改被拒绝的因素，并尝试在没有用户交互的情况下建立数据服务的EPS承载，在用户错误或不知情的情况下可以避免可能的永久拒绝。
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52.发明公开公开(公告)号：US20240214912A1
公开(公告)日：2024-06-27
申请号：US18088633
申请日：2022-12-26
Applicant: MEDIATEK INC.
Inventor： Chi-Hsien Chen
CPC classification number: H04W48/16 , H04L5/0055
Abstract: A method for adaptively shortening communication latency in the communication procedure includes: initiating a communication procedure to communicate with a network device by transmitting a predetermined message via a radio transceiver of a communication apparatus; determining an action indicator regarding transmission of the predetermined message according to information regarding network environment in which the predetermined message is transmitted; determining a follow-up action to be performed after the transmission of the predetermined message based on the action indicator; and performing the follow-up action.
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公开(公告)号：US12010549B2
公开(公告)日：2024-06-11
申请号：US17474915
申请日：2021-09-14
Applicant: MEDIATEK INC.
Inventor： Chien-Chun Huang-Fu , Bo-Hun Chen , Chi-Hsien Chen , Shang-Ru Mo
CPC classification number: H04W28/0289 , H04W84/042
Abstract: In 5GS, Single-Network Slice Selection Assistance Information (S-NSSAI) based backoff (BO) timers (T3584/T3585) can be applied to either the registered PLMN or all the PLMNs based on a 5GSM congestion re-attempt indicator. For a specific PDU session, the corresponding BO timer applied to the registered PLMN and the BO timer applied to all PLMN can be both running concurrently. It is proposed for a UE to stop both the BO timer applied to all the PLMNs and the BO timer applied to the registered PLMN, if running, in all the following scenarios: 1) Receiving a PDU session release command without a BO timer, 2) Receiving a PDU session release command with 5GSM cause #39, 3) Receiving a PDU session modification command, 4) Receiving a 5GSM message with a 5GSM congestion control BO timer value, and 5) Receiving a PDU session authentication command.
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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
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.
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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
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.
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Patent Agency Ranking
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
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.
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公开(公告)号：US20230300679A1
公开(公告)日：2023-09-21
申请号：US18104765
申请日：2023-02-01
Applicant: MEDIATEK INC.
Inventor： Chi-Hsien Chen
IPC: H04W28/08 , H04W28/086
CPC classification number: H04W28/0958 , H04W28/0942 , H04W28/0819
Abstract: A user equipment (UE) includes an access performance acquisition circuit and a wireless communication circuit. The access performance acquisition circuit acquires performance of a 3rd generation partnership project (3GPP) access and performance of a non-3GPP access. The wireless communication circuit determines a non-network-decided access traffic steering, switching and splitting (ATSSS) policy according to the performance of the 3GPP access and the performance of the non-3GPP access.
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公开(公告)号：US11696170B2
公开(公告)日：2023-07-04
申请号：US16937393
申请日：2020-07-23
Applicant: MediaTek Inc.
Inventor： Chien-Chun Huang-Fu , Chi-Hsien Chen , Po-Kuang Lu , Yu-Chieh Tien
CPC classification number: H04W28/0289 , H04W36/14 , H04W84/042
Abstract: Various solutions for single network slice selection assistance information (S-NSSAI) based congestion control with respect to user equipment and network apparatus in mobile communications are described. An apparatus may receive a message with a back-off timer from the network node. The apparatus may determine whether an S-NSSAI of a protocol data unit (PDU) session is provided by the network node. The apparatus may start the back-off timer and associate the back-off timer with the S-NSSAI of the PDU session in an event that the S-NSSAI is provided by the network node.
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公开(公告)号：US20220369393A1
公开(公告)日：2022-11-17
申请号：US17719077
申请日：2022-04-12
Applicant: MEDIATEK INC.
Inventor： Chien-Chun Huang-Fu , Chi-Hsien Chen
Abstract: A method for handling a collision of a UE-requested PDU session establishment procedure and a network-requested PDU session release procedure is proposed. When a PDU SESSION ESTABLISHMENT REQUEST message indicates that the UE-requested PDU session establishment request procedure is to handover an existing PDU session between 5G 3GPP access and 5G non-3GPP access, the UE proceeds with the network-requested PDU session release procedure and aborts the UE-requested PDU session establishment procedure. Otherwise, the UE ignores a received PDU SESSION RELEASE COMMAND message and proceeds with the UE-requested PDU session establishment procedure.
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公开(公告)号：US11265936B2
公开(公告)日：2022-03-01
申请号：US16792453
申请日：2020-02-17
Applicant: MEDIATEK INC.
Inventor： Chien-Chun Huang-Fu , Chi-Hsien Chen , Shang-Ru Mo
Abstract: In a first novel aspect, UE receives a mapped EPS bearer context IE during a PDU session establishment or modification procedure. UE diagnoses whether an operation error occurs for a mapped EPS bearer context. If so, UE deletes the mapped EPS bearer context with a 5GSM cause. In a second novel aspect, UE receives a QoS flow description IE during a PDU session establishment or modification procedure. UE diagnoses whether an operation error occurs for a QoS flow description. If so, UE either rejects the modification command or deletes the QoS flow description with a 5GSM cause. In a third novel aspect, UE receives a QoS flow description IE during an EPS bearer activation or modification procedure. UE diagnoses whether an operation error occurs for a QoS flow description. If so, UE includes an ePCO/PCO IE with a 5GSM cause in an activation or modification accept message.
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