Mediatek Corporation

Mediatek Singapore Pte. Ltd.

Tsung-Ming Lee

Chun-Pin Chen

Chih-Yuan Tsai

Hongwei Zhang

Quanping Wang

Xiaochi Zhao

Xiao Dang

Mohamed Abdelrazek El-Saidny

Chih-Cheng Yang

Yung-Chun Lin

Ho-Wen Pu

Wei-Chih Liao

Nien-En Wu

Lung-Wen Chen

Tzu-Ting Lo

I-Hsien Yeh

Shiau-Tsung Chiu

A cell selection method and user equipment (UE) are provided. The cell selection method is applied to the UE. The cell selection method includes the steps of obtaining a candidate cell group; selecting a first candidate cell sub-group from the candidate cell group according to the communication ability supported by each candidate cell of the candidate cell group; and selecting a camping cell of the UE from the first candidate cell sub-group.

Cell selection method and user equipment

A method for switching between different RATs is provided. The method is executed by a mobile communications device camping on a first cell using a first Radio Access Technology (RAT). The method includes: determining, by a controller of the mobile communications device, a data transmission rate of the mobile communications device in the first cell; sending, by the controller, a first measurement report according to the determined data transmission rate, wherein the first measurement report is intended to trigger a handover procedure initiated by the first cell or to release a radio resource control (RRC) connection; and switching, by the controller, to camp on a second cell using a second RAT via the handover procedure or a local releasing procedure after the sending of the first measurement report.

Method and device for switching between different radio access technologies

A method for enhancing mobility of a communications apparatus is provided. The method includes the steps of: establishing a connection with a cell; measuring one or more parameters of one or more cells; transmitting a measurement report to a network device according to the measured parameters of the one or more cells; determining whether a mobility command is received from the network device after transmitting the measurement report; and triggering a connection release procedure based on no mobility command being received from the network device after transmitting the measurement report.

Method for preventing an inter-rat change from being triggered and communications apparatus utilizing the same

A mobile communication device supporting wireless communications using a first subscriber identity and a second subscriber identity is provided. The mobile communication device includes a Radio Frequency (RF) device and a controller. The controller is coupled to the RF device such that the controller performs the following actions: performing a first measurement on a cell via the RF device by using the first subscriber identity to obtain a first measurement result; determining whether the first measurement result is valid; and based on a result of the determining, performing a second measurement on the cell via the RF device by using the second subscriber identity to obtain a second measurement result.

Apparatuses and methods for scheduling cell measurements associated with multiple subscriber identities

A mobile communication device including a Radio Frequency (RF) device and a baseband processor is provided. The RF device performs wireless transmission and reception to and from one or more cells. The baseband processor uses a first subscriber identity to establish a connection with a serving cell via the RF device to perform a first communication procedure, and in response to completing the first communication procedure or the first communication procedure being interrupted by a second communication procedure associated with a second subscriber identity, uses the first subscriber identity to send a measurement report to the serving cell via the RF device. In particular, the measurement report indicates a reported signal quality of the serving cell is poor enough to release the connection.

Apparatuses and methods for synchronizing states of separate subscriber identities with network

Various solutions for cell reselection with interference avoidance with respect to user equipment and network apparatus in mobile communications are described. An apparatus may receive frequency information of a target cell from a broadcast channel of a serving cell. The apparatus may determine an overlapped bandwidth region between the serving cell and the target cell according to the frequency information. The apparatus may compare a signal quality of the serving cell in the overlapped bandwidth region with a signal quality of the target cell in the overlapped bandwidth region. The apparatus may determine whether to perform a cell reselection according to a comparison result.

Methods and apparatus for cell reselection with interference avoidance in mobile communications

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Hsinchu, Taiwan

Tsung-Ming Lee