Patents by Inventor Chiao-Chih Chang
Chiao-Chih Chang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 12160287Abstract: Solutions pertaining to allocating antennas of a user equipment (UE) between connections using different RATs are proposed. A UE has a first connection to a first network and a second connection to a second network, each connection employing a respective radio access technology (RAT). During operation, the UE may identify a precondition of reconfiguring the connections. For example, the UE may intend to change a multi-input-multi-output (MIMO) setting of the first connection in order to release some antennas that can be allocated to the second connection to relieve a communication bottleneck thereof. Prior to reconfiguring the connections, the UE may communicate its intent to the first network. The UE may not reconfigure the connections until a confirmation is received from the first network.Type: GrantFiled: November 1, 2022Date of Patent: December 3, 2024Assignee: MediaTek Inc.Inventors: Chiao-Chih Chang, Che-Li Lin
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Publication number: 20240373294Abstract: The invention provides a method and related network circuit for improving latency of a wireless network (e.g., a Wi-Fi network). The method may be executed by a device (e.g., a Wi-Fi station) of the wireless network, and may comprise: configuring a duration threshold according to a latency requirement, and, when transmitting a physical layer protocol data unit (PPDU) over the wireless network, causing the PPDU not to be longer than the duration threshold. In an embodiment, the latency requirement may be obtained by handshaking with one or more other devices of the wireless network.Type: ApplicationFiled: April 30, 2024Publication date: November 7, 2024Inventors: Ying-You LIN, Kuo-Wei CHEN, Chiao-Chih CHANG, Chia-Hsiang CHANG
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Publication number: 20240224174Abstract: A method for dynamically de-activating a secondary cell group (SCG) of dual connectivity includes: checking if at least one radio frequency (RF) band used by the SCG meets a pre-defined criterion, and in response to the at least one RF band meeting the pre-defined criterion, de-activating the SCG. For example, the at least one RF band is a 5G New Radio (NR) band.Type: ApplicationFiled: December 29, 2022Publication date: July 4, 2024Applicant: MEDIATEK INC.Inventors: Tsung-Ming Lee, Chiao-Chih Chang, Nien-En Wu, Chih-Yuan Tsai, Jun-Jie Su
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Publication number: 20230370643Abstract: The present invention provides a control method of an electronic device, wherein the control method includes the steps of: obtaining a plurality of MPDUs, wherein the plurality of MPDUs corresponds to at least one I-frame and at least one P-frame; selectively duplicating the MPDUs corresponding to the I-frame to generate a plurality of duplicated MPDUs; and aggregating the plurality of MPDUs and the plurality of duplicated MPDUs in at least one PPDU.Type: ApplicationFiled: April 26, 2023Publication date: November 16, 2023Applicant: MEDIATEK INC.Inventors: Ying-You Lin, Chiao-Chih Chang, He-Yuan Lin
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Publication number: 20230147527Abstract: Solutions pertaining to allocating antennas of a user equipment (UE) between connections using different RATs are proposed. A UE has a first connection to a first network and a second connection to a second network, each connection employing a respective radio access technology (RAT). During operation, the UE may identify a precondition of reconfiguring the connections. For example, the UE may intend to change a multi-input-multi-output (MIMO) setting of the first connection in order to release some antennas that can be allocated to the second connection to relieve a communication bottleneck thereof. Prior to reconfiguring the connections, the UE may communicate its intent to the first network. The UE may not reconfigure the connections until a confirmation is received from the first network.Type: ApplicationFiled: November 1, 2022Publication date: May 11, 2023Inventors: Chiao-Chih Chang, Che-Li Lin
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Patent number: 11611973Abstract: Examples pertaining to improvement on user equipment (UE) uplink latency in wireless communications are described. When an apparatus is in a special mode, a processor of the apparatus transmits to a network a request for permission to perform an uplink (UL) transmission for a plurality of times. The processor then receives from the network a grant. In response to receiving the grant, the processor performs the UL transmission to the network. In transmitting the request for the plurality of times, the processor transmits the request for the plurality of times at a frequency higher than a frequency at which the request to perform UL transmissions is transmitted to the network when the apparatus is in a normal operational mode.Type: GrantFiled: June 30, 2021Date of Patent: March 21, 2023Inventors: Chiao-Chih Chang, Chien-Liang Lin, Jen-Hao Hsueh, Cheng-Che Chen, Sheng-Yi Ho, I-Wei Tsai, Zhen Jiang, Wen-Jean Yang
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Publication number: 20230027841Abstract: A communications apparatus includes a radio transceiver transmitting or receiving wireless signals in a wireless network and a processor coupled to the radio transceiver. The processor is configured to perform operations comprising: transmitting pre-schedule mechanism assistance information to a network device in the wireless network for the network device to refer to for uplink (UL) resource allocation regarding a pre-schedule mechanism; receiving one or more uplink (UL) grants from the network device; and performing UL transmission to the network device responsive to receiving the one or more UL grants.Type: ApplicationFiled: July 5, 2022Publication date: January 26, 2023Applicant: MEDIATEK INC.Inventors: Chiao-Chih Chang, Jianwei Zhang, Yu-Po Wang, Jun-Jie Su
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Publication number: 20230007559Abstract: A communication apparatus comprises a radio transceiver and a modem processor. The radio transceiver is configured to transmit or receive wireless signals in a wireless network. The modem processor is coupled to the radio transceiver and configured to perform operations comprising: connecting to a first network device via a first communication link in a first frequency band; predicting a handover according to at least one of at least one measurement result or location information; connecting to a second network device via a second communication link in a second frequency band, after predicting the handover; performing the handover from the first network device to a third network device, to stop connecting to the first network device and to connect to the third network device via the first communication link in the first frequency band; and stopping connecting to the second network device, after performing the handover.Type: ApplicationFiled: June 19, 2022Publication date: January 5, 2023Applicant: MEDIATEK INC.Inventors: Chiao-Chih Chang, Yuan-Chieh Lin, Chih-Yuan Tsai, Chien-Chun Huang-Fu, Yi-Lun Chen, Ying-You Lin
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Publication number: 20220408365Abstract: A power optimization method for uplink data transmission is provided. The power optimization method is applied to user equipment (UE). The power optimization method includes the following steps. The UE determines the current application scenario of the UE. The UE determines the data transmission window corresponding to the current application scenario. Data transmission windows corresponding to different application scenarios of the UE have at least one of different period to transmit data and different period to enter suspension. The UE may transmit data based on the determined data transmission window.Type: ApplicationFiled: June 9, 2022Publication date: December 22, 2022Inventors: Chiao-Chih CHANG, I-Wei TSAI, Jun-Jie SU, Ho-Wen PU, En-Jung FARN
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Publication number: 20220407618Abstract: A communication apparatus includes a radio transceiver, an application processor and a modem processor. The radio transceiver transmits or receives wireless signals to or from a network device in a wireless network to communicate with the network device via a communication link. The application processor is configured to run one or more application programs. The modem processor is coupled to the radio transceiver and the application processor and configured to perform operations including: evaluating a future condition of the communication link according to at least one communication parameter or at least one communication event to obtain an evaluation result; and sending a first indication to the application processor to inform the application processor of the evaluation result. Responsive to reception of the first indication, the application processor is further configured to perform operation including: adapting a codec for multimedia processing of data received from the network device.Type: ApplicationFiled: May 25, 2022Publication date: December 22, 2022Applicant: MEDIATEK INC.Inventors: Chien-Chun Huang-Fu, Chiao-Chih Chang, Yuan-Chieh Lin, Sheng-Yi Ho
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Publication number: 20220286961Abstract: A method applied to a base station includes receiving UE-aiding information that includes a power consumption requirement of the UE; and configuring one or more transmission parameters to the UE based on the UE-aiding information. The transmission parameters may include at least one of the number of antennas, the number of component carriers, a transmission bandwidth, a modulation scheme, a scheduling request period, and a radio access technology (RAT).Type: ApplicationFiled: March 4, 2022Publication date: September 8, 2022Inventors: Chiao-Chih CHANG, Jianwei ZHANG, Nien-En WU, Chih-Yuan TSAI, Tsung-Ming LEE, Jun-Jie SU
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Publication number: 20210329664Abstract: Examples pertaining to improvement on user equipment (UE) uplink latency in wireless communications are described. When an apparatus is in a special mode, a processor of the apparatus transmits to a network a request for permission to perform an uplink (UL) transmission for a plurality of times. The processor then receives from the network a grant. In response to receiving the grant, the processor performs the UL transmission to the network. In transmitting the request for the plurality of times, the processor transmits the request for the plurality of times at a frequency higher than a frequency at which the request to perform UL transmissions is transmitted to the network when the apparatus is in a normal operational mode.Type: ApplicationFiled: June 30, 2021Publication date: October 21, 2021Inventors: Chiao-Chih Chang, Chien-Liang Lin, Jen-Hao Hsueh, Cheng-Che Chen, Sheng-Yi Ho, I-Wei Tsai, Zhen Jiang, Wen-Jean Yang
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Patent number: 11089612Abstract: Examples pertaining to improvement on user equipment (UE) uplink latency in wireless communications are described. When an apparatus is in a special mode, a processor of the apparatus transmits to a network a request for permission to perform an uplink (UL) transmission for a plurality of times. The processor then receives from the network a grant. In response to receiving the grant, the processor performs the UL transmission to the network. In transmitting the request for the plurality of times, the processor transmits the request for the plurality of times at a frequency higher than a frequency at which the request to perform UL transmissions is transmitted to the network when the apparatus is in a normal operational mode.Type: GrantFiled: October 2, 2019Date of Patent: August 10, 2021Inventors: Chiao-Chih Chang, Chien-Liang Lin, Jen-Hao Hsueh, Cheng-Che Chen, Sheng-Yi Ho, I-Wei Tsai, Zhen Jiang, Wen-Jean Yang
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Publication number: 20200187041Abstract: The present invention provides a wireless communication method of a wireless device, wherein the wireless communication method includes the steps of: generating a first link-layer packet in a data link layer of the wireless device; using a first channel to transmit the first link-layer packet to an electronic device external to the wireless device; determining if a transmission of the first link-layer packet satisfies a condition; when the transmission of the first link-layer packet satisfies the condition, generating a second link-layer packet in the data link layer by duplicating data within the first link-layer packet; and using a second channel to transmit the second link-layer packet to the electronic device, and using the first channel to transmit the first link-layer packet again to the electronic device concurrently.Type: ApplicationFiled: November 1, 2019Publication date: June 11, 2020Inventors: Tsai-Yuan Hsu, Yi-Lun Chen, Chiao-Chih Chang
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Publication number: 20200154457Abstract: Examples pertaining to improvement on user equipment (UE) uplink latency in wireless communications are described. When an apparatus is in a special mode, a processor of the apparatus transmits to a network a request for permission to perform an uplink (UL) transmission for a plurality of times. The processor then receives from the network a grant. In response to receiving the grant, the processor performs the UL transmission to the network. In transmitting the request for the plurality of times, the processor transmits the request for the plurality of times at a frequency higher than a frequency at which the request to perform UL transmissions is transmitted to the network when the apparatus is in a normal operational mode.Type: ApplicationFiled: October 2, 2019Publication date: May 14, 2020Inventors: Chiao-Chih Chang, Chien-Liang Lin, Jen-Hao Hsueh, Cheng-Che Chen, Sheng-Yi Ho, I-Wei Tsai, Zhen Jiang, Vincent Yang
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Patent number: 9531387Abstract: A handheld device and a frequency tracking method thereof are provided. The handheld device comprises an oscillator, a radio frequency (RF) chip, a modem module, a first thermal sensor and a thermal module. The oscillator generates an oscillation signal with an oscillation frequency. The RF chip is electrically connected to the oscillator and configured to receive a paging signal from a paging channel and an RF signal from a non-regular channel based on the oscillation signal. The modem module is electrically connected to the RF chip. The first thermal sensor disposed close to the oscillator measures a heat source temperature. The thermal module electrically connected to the modem module and the first thermal sensor enables the modem module to execute a frequency compensation process by using the RF signal of both the paging signal and the RF signal according to the heat source temperature.Type: GrantFiled: December 31, 2014Date of Patent: December 27, 2016Assignee: MEDIATEK INC.Inventors: Chun-Jen Fang, Ching-Sheng Wu, Meng-Lin Wu, Chih-Ming Wang, Chiao-Chih Chang
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Publication number: 20150282156Abstract: A handheld device and a frequency tracking method thereof are provided. The handheld device comprises an oscillator, a radio frequency (RF) chip, a modem module, a first thermal sensor and a thermal module. The oscillator generates an oscillation signal with an oscillation frequency. The RF chip is electrically connected to the oscillator and configured to receive a paging signal from a paging channel and an RF signal from a non-regular channel based on the oscillation signal. The modem module is electrically connected to the RF chip. The first thermal sensor disposed close to the oscillator measures a heat source temperature. The thermal module electrically connected to the modem module and the first thermal sensor enables the modem module to execute a frequency compensation process by using the RF signal of both the paging signal and the RF signal according to the heat source temperature.Type: ApplicationFiled: December 31, 2014Publication date: October 1, 2015Inventors: Chun-Jen FANG, Ching-Sheng WU, Meng-Lin WU, Chih-Ming WANG, Chiao-Chih CHANG
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Publication number: 20150181154Abstract: The present invention discloses a method for playing a video, which includes the following steps: a selected video is played on a first display unit through a video player. A corresponding script related to the selected video is received through a handheld electrical device. A currently playing time of the selected video is received through the handheld electrical device from the video player. Metadata, which is related to the corresponding script and has a plurality of time stamps, is played through a second display unit of the handheld electrical device according to the currently playing time. During a process that the selected video is played on the first display unit, the handheld electrical device is utilized to re-receive the currently playing time of the selected video from the video player at a preset time interval.Type: ApplicationFiled: March 20, 2014Publication date: June 25, 2015Applicant: COMPAL ELECTRONICS, INC.Inventors: Wen-Chieh LEE, Ching-Hsiang LIN, Chiao-Chih CHANG
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Patent number: 8767808Abstract: In a method for processing unsolicited result codes (URCs) of a communication device, keywords of a URC are extracted when the URC is sent from a modem of the communication device to an operating system of the communication device. A digital code of the keywords is obtained by encoding the extracted keywords. A function of the communication device is executed to process the received URC according to the digital code of the keywords.Type: GrantFiled: August 11, 2011Date of Patent: July 1, 2014Assignee: Chi Mei Communication Systems, Inc.Inventors: Chiao-Chih Chang, Nan-Chun Chu
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Patent number: 8724034Abstract: Apparatuses and methods for scanning channels in a television signal receiver. The apparatuses generally include a first acquisition circuit, a second acquisition circuit, and a controller. The first acquisition circuit is generally configured to determine, during a first time period, whether a selected radio frequency channel has a first format and to produce a first acquisition indicator in response thereto. The second acquisition circuit is generally configured to determine, during a second time period overlapping the first time period, whether the selected radio frequency channel has a second format and to produce a second acquisition indicator in response thereto. The controller is generally configured to scan a plurality of radio frequency channels by operating the first acquisition circuit and the second acquisition circuit for each one of the plurality of radio frequency channels. Embodiments advantageously provides for faster scanning and acquisition of television signals in a mixed-format (e.g.Type: GrantFiled: May 13, 2008Date of Patent: May 13, 2014Assignee: Mediatek Inc.Inventors: Chiao-Chih Chang, Yi-Fu Chen, Ming-Luen Liou