-
公开(公告)号：US20200314187A1
公开(公告)日：2020-10-01
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.
-
公开(公告)号：US20200275511A1
公开(公告)日：2020-08-27
申请号：US16742918
申请日：2020-01-15
Applicant: MEDIATEK INC.
Inventor： Ren-Huang Liu , Chien-Chun Huang-Fu
Abstract: A connection recovery method for recovering a connection between a communications apparatus and a data network includes: receiving a first message indicating a non-3GPP access from the 3GPP network device in a CM-IDLE state in the non-3GPP access network; transmitting a second message to the 3GPP network device via 5GMM protocol over 3GPP control plane to establish the user plane resources for the non-3GPP PDU session; receiving a third message indicating that the user plane resources cannot be reestablished; and transmitting to the 3GPP network device a service request message via the 5GMM protocol over the 3GPP Internet PDU session of 3GPP user plane to reestablish the user plane resources, or a PDU session establishment request message via 5GSM protocol over the 3GPP control plane to handover the non-3GPP PDU session from the non-3GPP access network to the 3GPP access network in response to the third message.
-
公开(公告)号：US20200267780A1
公开(公告)日：2020-08-20
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.
-
公开(公告)号：US20200228443A1
公开(公告)日：2020-07-16
申请号：US16738750
申请日：2020-01-09
Applicant: MEDIATEK INC.
Inventor： Chien-Chun Huang-Fu , Chi-Hsien Chen , Shang-Ru Mo
IPC: H04L12/725 , H04L12/721 , H04L12/939 , H04W40/24 , H04W76/20
Abstract: A method of handling QoS flow descriptions with invalid EPS bearer context is proposed. During an EPS bearer activation or modification procedure, a UE may receive an ePCO/PCO IE for creating a new QoS flow description or modifying an existing QoS flow description. if UE detects that the to be created/modified QoS flow descriptions are associated with invalid EPS bearer context, then UE does, not create/modify the QoS flow descriptions. Instead, UE locally deletes the QoS flow descriptions provided by the network. In addition, UE indicates a 5GSM cause to the network via PCO/ePCO. As a result, when inter-system change from EPS to 5GS happens, UE no longer needs to handle the QoS flow descriptions with invalid EPS bearer context.
-
公开(公告)号：US10660058B2
公开(公告)日：2020-05-19
申请号：US16366063
申请日：2019-03-27
Applicant: MediaTek Inc.
Inventor： Yu-Cheng Huang , Chien-Chun Huang-Fu , Marko Niemi
IPC: H04W4/00 , H04W60/06 , H04W24/10 , H04W60/02 , H04W76/18 , H04L12/66 , H04W8/24 , H04L12/00 , H04W36/00
Abstract: Various solutions for avoiding circuit-switched call drop with respect to user equipment and network apparatus in mobile communications are described. An apparatus transmits a non-access stratum (NAS) message in a NAS signaling connection. The apparatus receives a NAS response message. The apparatus initiates a timer to control the NAS signaling connection. The apparatus further receives a circuit-switched (CS) service notification. The apparatus then stops the timer and execute a CS service procedure.
-
Patent Agency Ranking
公开(公告)号：US20200053642A1
公开(公告)日：2020-02-13
申请号：US16535580
申请日：2019-08-08
Applicant: MediaTek Inc.
Inventor： Chien-Chun Huang-Fu , Hung-Lin Chang , Tsung-Wei Tu , Yen-Chih Yang
Abstract: Examples pertaining to flexible radio access technology (RAT) selection for 5th Generation (5G) mobile communications are described. A user equipment (UE) may receive, from a network node of a wireless network, information related to a RAT preference with respect to RAT selection by the UE. Based at least in part on the received information, the UE may perform a RAT or Public Land Mobile Network (PLMN) selection procedure. Alternatively, or additionally, the UE may receive, from the network node, information related to ability of one or more neighbor network nodes of one or more RATs in a region. Based at least in part on the received information, the UE may select one of the one or more RATs or one of the one or more neighbor network nodes.
-
107.发明申请公开(公告)号：US20200053603A1
公开(公告)日：2020-02-13
申请号：US16535691
申请日：2019-08-08
Applicant: MEDIATEK INC.
Inventor： Chien-Chun Huang-Fu , Chi-Hsien Chen
Abstract: A method for handling PDU session handover procedure collision in a next generation NG/5G system is proposed. Both network-triggered and UE-triggered PDU session handover procedures can occur at the same time. If Paging or Notification for PDU session handover comes before UE initiated MO PDU session establishment procedure for PDU session handover, then UE should avoid sending the PDU session establishment request for PDU session handover but only send the service request as a response to paging. On the other hand, if Paging or Notification for PDU session handover comes after UE initiated MO PDU session establishment procedure for PDU session handover, then UE should avoid sending the service request for PDU session handover but proceed with the PDU session establishment procedure as a response to paging.
-
公开(公告)号：US20190254089A1
公开(公告)日：2019-08-15
申请号：US16274993
申请日：2019-02-13
Applicant: MEDIATEK INC.
Inventor： Chien-Chun Huang-Fu , Marko Niemi
CPC classification number: H04W76/12 , H04W36/0016 , H04W36/14 , H04W76/32 , H04W84/042
Abstract: Aspects of the disclosure can provide an apparatus and method for communicating with core network of a fifth generation system. The method includes transmitting, by a processing circuitry of a user equipment, a non-access stratum transport message to the core network to initiate a non-access stratum transport procedure with the core network, and receiving an indication message from the core network when a network function of the core network is unable to process the non-access stratum transport message, wherein the indication message includes at least one of a payload type, a cause value, and timer information. When the payload type of the indication message is a fifth generation system session management message, a short message service message or a long term evolution positioning protocol message, the processing circuitry of the user equipment performs at least one of: re-initiating a non-access stratum transport procedure based on timer information, aborting the non-access stratum transport procedure, and releasing a protocol data unit session.
-
公开(公告)号：US20190090289A1
公开(公告)日：2019-03-21
申请号：US16124443
申请日：2018-09-07
Applicant: MediaTek Inc.
Inventor： Chien-Chun Huang-Fu , Tsang-Wei Yu , Tao Chen , I-Kang Fu
Abstract: Various examples and schemes pertaining to enhanced cell selection mechanisms in mobile communications are described. A user equipment (UE) performs a cell selection or reselection procedure to select a cell of a wireless network and establishes a wireless connection with the selected cell. In performing the cell selection or reselection procedure, the UE determines a frequency band and a subcarrier spacing (SCS) configuration by checking a profile, and the UE performs the cell selection or reselection procedure in the frequency band based on the SCS configuration.
-
公开(公告)号：US10129921B2
公开(公告)日：2018-11-13
申请号：US15862644
申请日：2018-01-05
Applicant: MEDIATEK INC.
Inventor： Chien-Chun Huang-Fu , Mohamed Abdelrazek El-Saidny , Yuan-Chieh Lin
Abstract: Solutions are proposed to facilitate the support of 3GPP PS_Data_Off feature. The PS_Data_Off feature prevents transport via 3GPP access of all IP packets except those related to 3GPP PS_Data_Off Exempt Services. In one example, signaling storms due to frequent PS_Data_Off reconfiguration are prevented. In another example, for multi-SIM devices and for devices that supporting WiFi access, UE reconfigures the PS_Data_Off feature upon a triggering condition is satisfied. In yet another example, upon status change of PS_Data_Off feature, UE initiates RAT change to improve performance, to reduce power consumption and cost, and to maintain service continuity. Furthermore, new AT commands and parameters are introduced to enable the PS_Data_Off feature.
-
-
-
-
-
-
-
-
-
Search Results
213
records
(took 0.017 seconds)
