Mediatek Corporation

Shih-Hsin Chien

Shuang-An Chou

Hsiao-Ju Kuo

Shih-Chieh Liao

Chi-Chen Lee

Ching-Chieh Wang

Hua Wu

Wen-Hung Wu

Sian-Jheng Wong

Yu-Tien Yeh

Ching-Yueh Kao

Wen-Jiunn Liu

Jing-Ru Cheng

Tien-Yi Huang

A communications apparatus includes a radio transceiver and a processor. The radio transceiver is configured for transmitting or receiving wireless radio frequency signals to or from a peer device. The processor determines whether re-synchronization in a communication mode with the peer device is required according to a determination rule. When the re-synchronization is required, the processor transmits a message to the peer device via the radio transceiver to trigger a re-synchronization procedure. The processor determines whether the re-synchronization is required in a connected mode.

Methods for re-synchronizing a communication mode with a peer device and communications apparatus utilizing the same

A communications apparatus is provided. A processor is coupled to a subscriber identity card and a radio transceiver module. The subscriber identity card camps on a first cell operated in a first serving network having a first serving network identifier via the radio transceiver module. The processor embeds information regarding the first serving network identifier in a first signal and transmits the first signal to a peer communications apparatus via the radio transceiver module.

Methods for providing serving network information and communications apparatuses utilizing the same

A communication apparatus is provided. A processor camps on a first cell, which is associated with a first radio access technology (RAT) and belongs to a first wireless network, via a radio transceiver module, and further camps on a second cell, which is associated with a second RAT and belongs to a second wireless network, via the radio transceiver module. The processor constructs a first packet switch connection with the first wireless network via the first cell to perform data transfer in the first wireless network, measures a first data transfer throughput of the first wireless network when performing the data transfer via the cell, and determines to perform the data transfer in the second wireless network via the second cell when a theoretical data transfer throughput corresponding to the second RAT is higher than the first data transfer throughput.

Method for selecting optimal radio access technology and communication apparatuses utilizing the same

A communication apparatus is provided. A first subscriber identity card camps on a first cell, which is associated with a first radio access technology (RAT) and belongs to a first wireless network, via a radio transceiver module. A second subscriber identity card camps on a second cell, which is associated with a second RAT and belongs to a second wireless network, via the radio transceiver module. A processor constructs a first packet switch connection with the first wireless network via the first subscriber identity card to perform data transfer in the first wireless network, measures a first data transfer throughput of the first wireless network when performing the data transfer via the first subscriber identity card, and determines to perform the data transfer in the second wireless network via the second subscriber identity card when a theoretical data transfer throughput corresponding to the second RAT is higher than the first data transfer throughput.

A specific code indicative of a specific request is used to provide a communication device with an ability to send specific calls, such as emergency calls and silent calls, and the ability to distinguish the specific calls from the received calls. A method of sending a call includes generating a specific code indicative of a specific request, adding the specific code to a call, and then sending the call to a receiver for notifying the receiver of the specific request. A method of receiving a call includes determining whether a received call comprises a specific code indicative of a specific request, and generating an indication in response to the specific request when the received call is determined to comprise the specific code.

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Taipei, Taiwan

Shih-Hsin Chien