公开(公告)号：US20240155534A1

公开(公告)日：2024-05-09

申请号：US18502154

申请日：2023-11-06

Applicant: MEDIATEK Inc.

Inventor： Zhong-Han WU ,  Yu-Cheng HUANG

IPC: H04W60/04

CPC classification number: H04W60/04

Abstract: Controlling methods of a wireless communication device and a network are provided. The controlling method of the wireless communication device includes the following steps: transmitting a Mobility Registration Update (MRU) request to a network; keeping a Protocol Data Unit (PDU) command received from the network; and processing the PDU command after a predetermined waiting timer counted from receiving an MRU accept from the network is expired.

公开(公告)号：US20170142645A1

公开(公告)日：2017-05-18

申请号：US15335579

申请日：2016-10-27

Applicant: MEDIATEK INC.

Inventor： Kun-Lin WU ,  Hung-Lin CHANG ,  Chih-Hung LEE ,  Yuh-Hwang YOU ,  Ming LEE ,  Yu-Cheng HUANG

IPC: H04W48/16 ,  H04W48/18

CPC classification number: H04W48/16 ,  H04W48/18

Abstract: A communications apparatus includes a radio transceiver, a memory device and a processor. The radio transceiver transmits or receives wireless radio frequency signals to or from an air interface. The memory device stores a registration database including one or more sets of registration data. Each set of registration data corresponds to an International Mobile Subscriber Identity (IMSI). The processor determines whether performing a PLMN search procedure is required, and when performing a PLMN search procedure is required, the processor retrieves suitable registration data from the registration database according to a currently used IMSI and performs the PLMN search procedure via the radio transceiver based on the retrieved suitable registration data.

公开(公告)号：US20220272526A1

公开(公告)日：2022-08-25

申请号：US17633326

申请日：2020-08-07

Applicant: MEDIATEK INC.

Inventor： Yu-Cheng HUANG ,  Chi-Chen LEE ,  Hao-Hsiang CHUNG ,  Yung-Chun YANG ,  Chien-Chun HUANG-FU

IPC: H04W12/03 ,  H04W60/04 ,  H04W76/10

Abstract: Methods and apparatus are provided for providing UE EPS capability information and receiving non-access stratum (NAS) security algorithm information for an interworking procedure in the 5GS network. In one novel aspect, the UE provides the UE EPS capability information in cleartext before the security mode procedure, and the NAS security algorithm information is included in a security mode command message during the security mode procedure. In one embodiment, the UE EPS capability information is an S1 mode indicator or the 5GMM capability information including the Si mode indicator. In another novel aspect, the network provides the NAS security algorithm information before interworking procedure from 5GS to LTE. In one embodiment, the network provides the NAS security algorithm information in the Registration Accept message. In another embodiment, the network provides the NAS security algorithm information in handover procedure from the 5GS to LTE.

公开(公告)号：US20160323931A1

公开(公告)日：2016-11-03

申请号：US15138720

申请日：2016-04-26

Applicant: MediaTek Inc.

Inventor： Yu-Cheng HUANG ,  Chien-Chun HUANG-FU ,  Yu-Syuan JHENG ,  Jou-Man LIN

IPC: H04W76/06 ,  H04W76/02

CPC classification number: H04W76/30 ,  H04W36/0022 ,  H04W60/005 ,  H04W60/06 ,  H04W76/16 ,  H04W76/18 ,  H04W76/50

Abstract: A mobile communication device including a wireless transceiver and a controller is provided. The wireless transceiver performs wireless transmission and reception to and from a first network supporting only Packet-Switched (PS) services or a second network supporting Circuit-Switched (CS) services. The controller receives a rejection message of a Tracking Area Updating (TAU) procedure from the first network via the wireless transceiver when a Circuit Switch Fallback (CSFB)-related call originated from or terminated to the mobile communication device is pending, determines whether the rejection message includes a predetermined rejection cause, and in response to the rejection message including the predetermined rejection cause, selects the second network to make the CSFB-related call via the wireless transceiver without re-attaching to the first network.

Abstract translation: 提供了包括无线收发器和控制器的移动通信设备。 无线收发器执行到仅支持分组交换（PS）服务的第一网络或支持电路交换（CS）服务的第二网络的无线传输和接收。 当从移动通信设备发起或终止于移动通信设备的电路交换回退（CSFB）相关呼叫待处理时，控制器经由无线收发器从第一网络接收跟踪区域更新（TAU）过程的拒绝消息，确定是否拒绝 消息包括预定的拒绝原因，并且响应于包括预定拒绝原因的拒绝消息，选择第二网络经由无线收发机进行CSFB相关呼叫，而不重新附加到第一网络。