Mediatek Corporation

Nien-En Wu

Wei-Jen Chen

Chih-Wei Chen

Yuan Yuan

Chih-Yuan Lin

Peng Yang

Chong-You Lee

Jianwei Zhang

Cheng-Yu Tsai

Chun-Pin Chen

Tsung-Ming Lee

Zhi Zheng

Kuan-Lin Chen

Da-chun Hsing

Yen-Chen Chen

Jiaxian Pan

Wei-Yao Chen

Yabo Li

I-Hsien Yeh

Jun Hu

Shiau-Tsung Chiu

Apparatus and methods are provided for determining AR filter coefficient and numbers of synchronization. In one novel aspect, the AR filter coefficient and times of synchronization are determined based on the temperatures of the oscillator. In one embodiment, the UE determines a temperature drift rate by collecting sets of temperatures before and after the UE in the sleep mode of the CDRX, generates one or more threshold look-up tables and performs an optimization selection based on the temperature drift rate and the one or more threshold of look-up tables, wherein the optimization selection comprising selecting an alpha coefficient and a number of subframes for synchronization. In another embodiment, the optimization selection is further determined based on a subcarrier spacing, and a channel type of being a static channel type and a fading channel type. The UE further performs an on-the-fly oscillator S-curve calibration based on the set of temperatures.

Methods and apparatus for determining ar filter coefficient and times of synchronization

The invention provides a method for antenna selectin of a user equipment (UE). The UE may comprise a plurality of antennas. The method may comprise calculating one or more quality evaluations respectively associated with one or more first antenna subsets, and selecting one of the one or more first antenna subsets according to the one or more quality evaluations. Each antenna subset may include one or more of the plurality of antennas. Each quality evaluation may be calculated under a condition that the antenna(s) included in the associated antenna subset is (are) used to communicate.

Method for antenna selection of user equipment

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

Nien-En Wu