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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：US11751279B2
公开(公告)日：2023-09-05
申请号：US17123296
申请日：2020-12-16
Applicant: MEDIATEK INC.
Inventor： Chien-Chun Huang-Fu , Chun-Fan Tsai , I-Kang Fu , Chin-Chia Chang
Abstract: A User Equipment (UE) including a wireless transceiver and a controller is provided. The wireless transceiver performs wireless transmission and reception to and from a first service network utilizing a first RAT or a second service network utilizing a second RAT. The controller sends an indicator of a connection release request to the first service network via the wireless transceiver in response to terminating a first communication service with the first service network or in response to leaving the first service network for the second service network. Also, the controller releases a Radio Resource Control (RRC) connection with the first service network after sending the indicator of the connection release request.
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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：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
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.
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Patent Agency Ranking
公开(公告)号：US20230007559A1
公开(公告)日：2023-01-05
申请号：US17844049
申请日：2022-06-19
Applicant: MEDIATEK INC.
Inventor： Chiao-Chih Chang , Yuan-Chieh Lin , Chih-Yuan Tsai , Chien-Chun Huang-Fu , Yi-Lun Chen , Ying-You Lin
Abstract: A communication apparatus comprises a radio transceiver and a modem processor. The radio transceiver is configured to transmit or receive wireless signals in a wireless network. The modem processor is coupled to the radio transceiver and configured to perform operations comprising: connecting to a first network device via a first communication link in a first frequency band; predicting a handover according to at least one of at least one measurement result or location information; connecting to a second network device via a second communication link in a second frequency band, after predicting the handover; performing the handover from the first network device to a third network device, to stop connecting to the first network device and to connect to the third network device via the first communication link in the first frequency band; and stopping connecting to the second network device, after performing the handover.
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公开(公告)号：US20220407618A1
公开(公告)日：2022-12-22
申请号：US17824874
申请日：2022-05-25
Applicant: MEDIATEK INC.
Inventor： Chien-Chun Huang-Fu , Chiao-Chih Chang , Yuan-Chieh Lin , Sheng-Yi Ho
Abstract: A communication apparatus includes a radio transceiver, an application processor and a modem processor. The radio transceiver transmits or receives wireless signals to or from a network device in a wireless network to communicate with the network device via a communication link. The application processor is configured to run one or more application programs. The modem processor is coupled to the radio transceiver and the application processor and configured to perform operations including: evaluating a future condition of the communication link according to at least one communication parameter or at least one communication event to obtain an evaluation result; and sending a first indication to the application processor to inform the application processor of the evaluation result. Responsive to reception of the first indication, the application processor is further configured to perform operation including: adapting a codec for multimedia processing of data received from the network device.
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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：US11310320B2
公开(公告)日：2022-04-19
申请号：US16835442
申请日：2020-03-31
Applicant: MEDIATEK INC.
Inventor： Chien-Chun Huang-Fu , Yu-Chieh Tien
Abstract: A method for Procedure Transaction Identity (PTI) error handling on 5G Session Management (5GSM) procedures is proposed. If a User Equipment (UE) receives a PDU SESSION AUTHENTICATION COMMAND or PDU SESSION AUTHENTICATION RESULT message in which the PTI value is an assigned value, the UE transmits a 5GSM STATUS message including 5GSM cause #81 “invalid PTI value”. If the UE receives a PDU SESSION ESTABLISHMENT ACCEPT or REJECT message, a PDU SESSION MODIFICATION COMMAND or REJECT message, or a PDU SESSION RELEASE COMMAND or REJECT message in which the PTI value is an unassigned value, the UE ignores the received message. If the UE receives any 5GSM message in which the PTI value is a reserved value, the UE ignores the received 5GSM message.
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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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