Mediatek Corporation

Shuang-An Chou

Hsu-Chieh Hu

Hung-Yueh Chen

Shih-Hsin Chien

Wen-Hung Wu

Hsiao-Ju Kuo

Bin-Ruei Wang

Tsung-Liang Lu

Po-Han Chu

A method for monitoring paging messages in a mobile station with a subscriber identity card camping on a cell is provided. A paging message from the cell is monitored at a set of M predetermined time intervals. A first paging message with a first subscriber identity information being successively broadcasted in the paging channel at a Nth predetermined time interval and a (N+i)th predetermined time interval of the set of M predetermined time intervals is determined. A second paging message with a second subscriber identity information being successively broadcasted in the paging channel at the Nth predetermined time interval and a (N+j)th predetermined time interval of the set of M predetermined time intervals is determined, wherein j&#x3e;i. The paging channel is monitored at a (N+i)th predetermined time interval and a (N+j)th predetermined time interval of following predetermined time intervals subsequent to the M predetermined time intervals.

Methods for monitoring paging messages with reduced power consumption and communications apparatuses utilizing the same

A method for performing a cell reselection process in a wireless communications system is provided. The method is used in a communications apparatus camping on a serving cell. The method includes: receiving priority information about a priority order of frequencies of candidate cells from a network operator; performing a cell reselection evaluation process to select a target cell from the serving cell and the candidate cells; and performing a cell reselection process from the serving cell to the target cell directly without passing through any intervening cell.

Method and communications apparatus for performing a cell reselection process

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 cell operating in a serving network having a serving network identifier via the radio transceiver module. The processor at least includes a first processor logic unit obtaining information regarding the serving network identifier, a second processor logic unit carrying the information regarding the serving network identifier in a message to be transmitted to the serving network, and a third processor logic unit transmitting the message to the serving network via the radio transceiver module.

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

A communications apparatus and method for camping on a serving cell. The apparatus includes a radio frequency (RF) signal processing device, processing a plurality of RF signals to generate a plurality of baseband signals, a baseband signal processing device, processing the baseband signals, and a processor, determining whether a first predetermined threshold value related to cell reselection of the serving cell is greater than a second predetermined threshold value related to cell reselection of a predetermined neighbor cell, and when the first predetermined threshold value is greater than the second predetermined threshold value, determining not to perform cell reselection to reselect to the predetermined neighbor cell and determining to perform at least one radio activity instead in a predetermined period of time reserved for performing the cell reselection.

Methods for efficient wireless communications and communication apparatus utilizing the same

A communications apparatus and method for camping on a serving cell. The apparatus includes a radio frequency (RF) signal processing device, processing a plurality of RF signals to generate a plurality of baseband signals, a baseband signal processing device, processing the baseband signals, and a processor, measuring a signal quality or power of the serving cell and determining whether a first predetermined threshold value related to cell reselection of the serving cell is greater than a second predetermined threshold value related to cell reselection of a predetermined neighbor cell. When the first predetermined threshold value is greater than the second predetermined threshold value, the processor further determines whether the signal quality or power of the serving cell is greater than the second predetermined threshold value. Also, at times, the processor further determines whether to perform cell measurement on the predetermined neighbor cell.

A paging channel is monitored at a special position of every predetermined time interval subsequent to the last monitored time. It is detected whether a same first identity information is repeatedly broadcasted in the paging channel at special positions of different predetermined time interval. A total number of periodically repeated messages containing the same first identity information is determined. A new time interval is determined by multiplying a time period between two successive repeated paging messages with the total number of periodically repeated paging messages, wherein the new time interval has a monitoring interval (having a plurality of predetermined time intervals) equaling to the length of the time period and a sleep interval. The paging channel is monitored at special positions of the plurality of predetermined time intervals in every new time interval subsequent to the last monitored time so as to receive subsequent paging messages from the cell.

A method for efficient wireless communications includes determining whether a first predetermined threshold value related to cell reselection is greater than a second predetermined threshold value related to cell measurement; and when the first predetermined threshold value is not greater than the second predetermined threshold value, determining not to perform cell measurement on a predetermined neighbor cell and determining to perform at least one radio activity instead in a predetermined period of time reserved for performing the cell measurement.

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.

A method for monitoring paging messages in a mobile station with a subscriber identity card camping on a cell is provided. A paging channel is monitored at every end of predetermined time interval subsequent to the last monitored time. It is detected whether the same identity information is repeatedly broadcasted in the paging channel at different ends of predetermined time interval. A new time interval is determined when detecting that the same identity information is repeatedly broadcasted. The paging channel is monitored at every end of new time interval subsequent to the last monitored time so as to receive subsequent paging messages from the cell, wherein the new time interval is longer than the predetermined time interval.

A communications apparatus includes a radio frequency signal processing device, a baseband signal processing device, a memory device and a processor. The RF signal processing device processes RF signals to generate baseband signals. The baseband signal processing device processes the baseband signals. The processor determines whether a first predetermined threshold value related to cell reselection is greater than a second predetermined threshold value related to cell measurement, and performs cell measurement on a predetermined neighbor cell when the first predetermined threshold value is greater than the second predetermined threshold value.

Methods for determining whether to perform cell measurement on a predetermined neighbor cell and for ping-pong avoidance during cell reselection and communication apparatus 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.

Growing community of inventors

Keelung, Taiwan

Shuang-An Chou