公开(公告)号：US20160219478A1

公开(公告)日：2016-07-28

申请号：US15008166

申请日：2016-01-27

Applicant: MEDIATEK INC.

Inventor： Chien-Chun Huang-Fu ,  Yu-Syuan Jheng ,  Pavan Santhana Krishna Nuggehalli

IPC: H04W36/16

CPC classification number: H04W36/0083 ,  H04W24/02 ,  H04W24/08 ,  H04W24/10 ,  H04W28/085 ,  H04W28/12 ,  H04W36/00 ,  H04W36/14 ,  H04W36/165 ,  H04W36/22 ,  H04W76/16 ,  H04W84/12 ,  H04W88/06

Abstract: Methods for LTE-WLAN interworking control and management are proposed. In one novel aspect, a mobile termination (MT) can use an AT command to report radio access network (RAN) assistance parameters of the current serving cell. A terminal equipment (TE) can use the AT command to query the specific RAN assistance parameters and the threshold value provided by the network for making LTE-WLAN interworking decisions. If reporting is enabled by TE, then an unsolicited result code (URC) is sent from MT to TE whenever changes in the current RAN assistance parameters occur.

Abstract translation: 提出了LTE-WLAN互通控制与管理方法。 在一个新颖的方面，移动终端（MT）可以使用AT命令报告当前服务小区的无线接入网络（RAN）辅助参数。 终端设备（TE）可以使用AT命令查询特定的RAN辅助参数和由网络提供的用于进行LTE-WLAN互通决策的阈值。 如果通过TE启用了报告，则随着当前RAN辅助参数的变化发生，主动发送结果代码（URC）将从MT发送到TE。

公开(公告)号：US20160219460A1

公开(公告)日：2016-07-28

申请号：US15008203

申请日：2016-01-27

Applicant: MEDIATEK INC.

Inventor： Chien-Chun Huang-Fu ,  Yu-Syuan Jheng ,  Pavan Santhana Krishna Nuggehalli

IPC: H04W28/08 ,  H04W24/02 ,  H04W24/10 ,  H04W24/08

CPC classification number: H04W36/0083 ,  H04W24/02 ,  H04W24/08 ,  H04W24/10 ,  H04W28/085 ,  H04W28/12 ,  H04W36/00 ,  H04W36/14 ,  H04W36/165 ,  H04W36/22 ,  H04W76/16 ,  H04W84/12 ,  H04W88/06

Abstract: Methods for LTE-WLAN interworking control and management are proposed. In one novel aspect, a mobile termination (MT) can use an AT command to report the change of a RAN rule and/or a RAN condition match. A terminal equipment (TE) can use the AT command to query a list of matches and current RAN measurement values. A RAN rule match means one or more than one of RAN rules satisfy the threshold provided by the network according to TS36.304 description, or change from satisfied to unsatisfied. A RAN condition match means all RAN rules within a RAN condition are all satisfied according to TS36.604 description, or if any of the RAN condition change from satisfied to unsatisfied. If the reporting is enabled by TE, an unsolicited result code (URC) is sent from MT to TE whenever changes in the current RAN rule or RAN condition match occur.

Abstract translation: 提出了LTE-WLAN互通控制与管理方法。 在一个新颖的方面，移动终端（MT）可以使用AT命令报告RAN规则和/或RAN条件匹配的改变。 终端设备（TE）可以使用AT命令来查询匹配列表和当前的RAN测量值。 RAN规则匹配意味着根据TS36.304描述，RAN规则中的一个或多于一个满足网络提供的阈值，或者从满足而不满足。 RAN条件匹配意味着RAN条件中的所有RAN规则都根据TS36.604描述满足，或者RAN条件中的任何一个从满足变为不满足。 如果通过TE启用报告，则无论何时发生当前RAN规则或RAN条件匹配发生变化，主动发送结果码（URC）将从MT发送到TE。

公开(公告)号：US20160218988A1

公开(公告)日：2016-07-28

申请号：US15005285

申请日：2016-01-25

Applicant: MEDIATEK INC.

Inventor： Chien-Chun Huang-Fu ,  Weirong Chu ,  Yu-Syuan Jheng

IPC: H04L12/805 ,  H04L12/26

CPC classification number: H04L47/365 ,  H04L29/08 ,  H04L45/121 ,  H04L47/36 ,  H04L69/166 ,  H04W28/12 ,  H04W28/18 ,  H04W72/0426

Abstract: A method of control Maximum Transmission Unit (MTU) reporting and discovery using AT commands is proposed. In communications networks, the MTU of a communication protocol of a layer is the size (in bytes or octets) of the largest protocol data unit that the layer can pass onwards. In an IP network, IP packets may be fragmented if the supported MTU size is smaller than the packet length. In accordance with one novel aspect, the packet data protocol (PDP) context of a packet data network (PDN) connection comprises MTU information. By introducing MTU information to the PDP contexts, TE can use AT commands to query MTU parameters from the network and thereby avoid fragmentation. TE can also use AT command to set MTU parameters and thereby control MTU discovery.

Abstract translation: 提出了使用AT命令控制最大传输单元（MTU）报告和发现的方法。 在通信网络中，层的通信协议的MTU是层可以向前传递的最大协议数据单元的大小（以字节或八位位组）。 在IP网络中，如果支持的MTU大小小于分组长度，则IP分组可能会被分段。 根据一个新颖的方面，分组数据网络（PDN）连接的分组数据协议（PDP）上下文包括MTU信息。 通过向PDP上下文引入MTU信息，TE可以使用AT命令从网络中查询MTU参数，从而避免分片。 TE也可以使用AT命令设置MTU参数，从而控制MTU发现。

公开(公告)号：US20160080978A1

公开(公告)日：2016-03-17

申请号：US14854369

申请日：2015-09-15

Applicant: MEDIATEK INC.

Inventor： Shang-Ru Mo ,  Chien-Chun Huang-Fu ,  Yuan-Chieh Lin ,  Yung Hsiang Hsieh ,  Yung-Fu Chen

IPC: H04W36/00 ,  H04W36/04

CPC classification number: H04W36/24 ,  H04W36/14 ,  H04W48/20 ,  H04W76/22

Abstract: Methods and apparatus are provided for enhanced bearer continuity for the 3GPP network. In one novel aspect, the UE detects missing parameters for the inter-RAT bearer change in an idle state. The UE performs bearer preservation procedures to maintain the bearer continuity. In one embodiment, predefined/preconfigured parameter settings are used. In one embodiment, a mapping rule is used to map the missing parameter to a predefined value based on one or more known parameters. In another embodiment, the missing parameters are obtained from the network. In another embodiment, signaling procedures used to obtain the missing parameters. The signaling procedures include a service request, a UE-initiated bearer modification procedure. In one embodiment, the cell reselection is suspended such that the signaling procedure is performed to obtain the missing parameters before the cell reselection. In another embodiment, a RAU procedure is used upon detecting the missing of parameters.

Abstract translation: 提供了用于3GPP网络的增强的承载连续性的方法和装置。 在一个新颖的方面，UE在空闲状态下检测用于RAT间承载变化的缺失参数。 UE执行承载保留过程以维护承载连续性。 在一个实施例中，使用预定义/预配置的参数设置。 在一个实施例中，映射规则用于基于一个或多个已知参数将缺失参数映射到预定义的值。 在另一个实施例中，从网络获得缺失的参数。 在另一个实施例中，用于获得缺失参数的信令程序。 信令过程包括服务请求，UE发起的承载修改过程。 在一个实施例中，暂停小区重选，使得执行信令过程以在小区重选之前获得缺失的参数。 在另一个实施例中，在检测到参数丢失时使用RAU过程。

公开(公告)号：US20140286224A1

公开(公告)日：2014-09-25

申请号：US14221689

申请日：2014-03-21

Applicant: MEDIATEK INC.

Inventor： Chia-Hao Yu ,  Chia-Chun Hsu ,  Yih-Shen Chen ,  Chien-Chun Huang-Fu ,  Yu-Syuan Jheng

IPC: H04W4/08 ,  H04W36/32

CPC classification number: H04W4/08 ,  H04L5/0037 ,  H04L12/185 ,  H04L12/1886 ,  H04W4/06 ,  H04W4/10 ,  H04W24/08 ,  H04W36/0083 ,  H04W36/08 ,  H04W36/30 ,  H04W36/32 ,  H04W72/00 ,  H04W72/005 ,  H04W72/121 ,  H04W74/006 ,  H04W76/40

Abstract: A method of supporting group communication over LTE MBMS is provided. A UE first establishes a unicast Evolved Packet Service (EPS) bearer in an LTE network for group communication. The UE belongs to a communication group having a communication group ID. The UE receives access information from the network for monitoring downlink (DL) multicast traffic of the DL group communication based on a multicast decision. The UE is then ready for monitoring a multicast Multimedia Broadcast Multicast Service (MBMS) bearer for receiving the DL multicast traffic. In one embodiment, The UE requests to switch the DL multicast traffic from the multicast MBMS bearer to the unicast EPS bearer upon detecting that the UE is approaching an MBMS coverage boundary. In another embodiment, the UE transmits an indication of preferred target cells to the network before performing a handover and thereby maintaining multicast service continuity of the group communication.

Abstract translation: 提供了一种通过LTE MBMS支持群组通信的方法。 UE首先在用于组通信的LTE网络中建立单播演进分组业务（EPS）承载。 UE属于具有通信组ID的通信组。 UE从网络接收基于多播决定的DL组通信的下行链路（DL）组播流量的接入信息。 然后，UE准备监视用于接收DL多播业务的组播多媒体广播多播服务（MBMS）承载。 在一个实施例中，当UE正在接近MBMS覆盖边界时，UE请求将DL组播业务从组播MBMS承载切换到单播EPS承载。 在另一个实施例中，UE在执行切换之前向网络发送优选目标小区的指示，从而保持组通信的多播服务连续性。

公开(公告)号：US12219650B2

公开(公告)日：2025-02-04

申请号：US18362546

申请日：2023-07-31

Applicant: MEDIATEK INC.

Inventor： Chien-Chun Huang-Fu ,  Chun-Fan Tsai ,  I-Kang Fu ,  Chin-Chia Chang

IPC: H04W76/30 ,  H04W36/00 ,  H04W36/14 ,  H04W76/27

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.

公开(公告)号：US20240397389A1

公开(公告)日：2024-11-28

申请号：US18793801

申请日：2024-08-03

Applicant: MEDIATEK INC.

Inventor： Chien-Chun Huang-Fu

IPC: H04W36/00

Abstract: A method for S-NSSAI handling of a 5GS capable UE supporting session continuity between 3GPP and non-3GPP interworking is proposed. The UE maintains a PDN connection/PDU session. The UE performs interworking among S1 mode, N1 mode (including 3GPP and non-3GPP access), and ePDG. The UE associates the existing S-NSSAI with the new PDN connection/PDU session after interworking, no matter whether the S-NSSAI is provided by the network or not. The UE can update the S-NSSAI upon receipt of new value from the network. When interwork to N1 mode, the UE applies the S-NSSAI.

公开(公告)号：US11683749B2

公开(公告)日：2023-06-20

申请号：US17365018

申请日：2021-07-01

Applicant: MEDIATEK INC.

Inventor： Chia-Lin Lai ,  Chien-Chun Huang-Fu ,  Yuan-Chieh Lin ,  Guillaume Sebire

IPC: H04W48/18 ,  H04W48/16 ,  H04W84/04

CPC classification number: H04W48/18 ,  H04W48/16 ,  H04W84/042

Abstract: Aspects of the disclosure provide methods and apparatuses. The method can include receiving, at a user equipment (UE), system information broadcast from a base station which may be shared by one or more PLMNs and SNPNs, the system information including an indication of whether accessing an SNPN using home service provider (HSP) subscription of a HSP network is supported. The UE can be configured with subscription information of the HSP network. The subscription information can include the HSP subscription and a home SP selection list that includes one or more candidate networks each represented by an SNPN identifier. The method can further include responsive to the system information, selecting a network from the home SP selection list according to a priority order of the candidate networks, and accessing the network selected from the home SP selection list using the HSP subscription.

公开(公告)号：US11671891B2

公开(公告)日：2023-06-06

申请号：US17236974

申请日：2021-04-21

Applicant: MEDIATEK INC.

Inventor： Chien-Chun Huang-Fu ,  Meng-Ting Tsai

IPC: H04W48/16 ,  H04W36/14 ,  H04W76/20 ,  H04W76/11 ,  H04W8/18 ,  H04W40/02 ,  H04W48/12 ,  H04L47/20 ,  H04L45/302 ,  H04W28/02 ,  H04W28/12 ,  H04W36/00 ,  H04W68/02 ,  H04W76/27 ,  H04L67/141 ,  H04L67/146 ,  H04L67/148 ,  H04W28/04 ,  H04W36/08 ,  H04W48/18 ,  H04W84/04 ,  H04L65/1101

CPC classification number: H04W36/14 ,  H04W8/183 ,  H04W76/11 ,  H04W76/20 ,  H04L45/306 ,  H04L47/20 ,  H04L65/1101 ,  H04L67/141 ,  H04L67/146 ,  H04L67/148 ,  H04W28/0215 ,  H04W28/0252 ,  H04W28/0268 ,  H04W28/04 ,  H04W28/12 ,  H04W36/0022 ,  H04W36/08 ,  H04W40/02 ,  H04W48/12 ,  H04W48/18 ,  H04W68/02 ,  H04W76/27 ,  H04W84/042

Abstract: A method for UE route selection policy (URSP) rule matching is proposed. URSP is used by a UE to determine if a detected application can be associated to an established PDU session, can be offload to non-3GPP access outside a PDU session, or can trigger the establishment of a new PDU session. The UE first finds a non-default URSP rule with a matching traffic descriptor to the application. When the UE fails to find existing PDU session or setup new PDU session with any or the route selection descriptors of the non-default URSP rule, the UE moves to another non-default URSP rule, if any, and try the matching. If all non-default URSP rules cannot be matched with the application, then the UE tries the default URSP rule, which includes a match-all traffic descriptor.

公开(公告)号：US11582656B2

公开(公告)日：2023-02-14

申请号：US17529095

申请日：2021-11-17

Applicant: MEDIATEK INC.

Inventor： Chien-Chun Huang-Fu ,  Chi-Hsien Chen

IPC: H04W36/00 ,  H04W76/10 ,  H04W88/06 ,  H04W68/00

Abstract: A method of handling invalid PDU session during handover procedure between non-3GPP access and 3GPP access in a mobile communication network is proposed. A UE establishes a PDU session over a first RAT, and then tries to handover the PDU session from the first RAT to a second RAT. However, at the network side, the PDU session over the first RAT does not exist anymore and the network considers the PDU session to be invalid. The network thus sends a PDU session establishment reject message back to the UE, with a 5GSM status message cause value #54 indicating “PDU session does not exist”. At the UE side, the PDU session over the first RAT is still valid (e.g., not inactive). In order to resynchronize with the network, the UE performs a PDU session release procedure to release the PDU session over the first RAT.