Patents by Inventor Wei-nan Sun

Wei-nan Sun 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).

  • Patent number: 10645658
    Abstract: Methods and apparatuses pertaining to uplink power consumption reduction for a Narrow Band-Internet of Things (NB-IoT) apparatus. The NB-IoT apparatus may transmit uplink data to a network apparatus via an uplink channel. The network apparatus may decode the uplink data. The network apparatus may further transmit an acknowledgement (ACK) indicator to the NB-IoT apparatus before receiving all the uplink data if the uplink data is decoded successfully. The NB-IoT apparatus may monitor whether an ACK indicator is received from the network apparatus during a transmission gap of the uplink channel. The NB-IoT apparatus may further terminate uplink data transmission if the ACK indicator is received.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: May 5, 2020
    Assignee: MEDIATEK INC.
    Inventors: Po-Ying Chen, Mingchun Chiang, Jeng-Yi Tsai, Ho-Chi Huang, Wei-Nan Sun, Wenze Qu
  • Patent number: 10492159
    Abstract: A mobile communication device with a Radio Frequency (RF) unit and a processing unit is provided. The RF unit transmits and receives wireless signals to and from a service network. The processing unit configures the RF unit to communicate with the service network, and uses broadcast information for performing radio link monitoring, cell measurement, or channel estimation with the service network.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: November 26, 2019
    Assignee: MEDIATEK INC.
    Inventors: Wei-Jen Chen, Jianxuan Du, Yen-Hui Yeh, Wei-Nan Sun
  • Publication number: 20190132087
    Abstract: Aspects of the disclosure provide an apparatus that includes a transceiver circuit and a baseband processing circuit. The transceiver circuit is configured to transmit signals that carry a data unit to another apparatus and receive signals that carry a response from the other apparatus. The baseband processing circuit is configured to provide a first digital stream to carry a data unit to the transceiver circuit for transmission, and provide a second digital stream to carry a portion of the data unit to the transceiver circuit for retransmission when the transceiver circuit receives a response that is indicative of a partial receiving failure of the data unit at the other apparatus.
    Type: Application
    Filed: April 1, 2017
    Publication date: May 2, 2019
    Applicant: MEDIATEK INC.
    Inventors: Wei-De WU, Kuo-Ming WU, Ju-Ya CHEN, Tao CHEN, Wei-Jen CHEN, Mao-Ching CHIU, Wei-Nan SUN
  • Patent number: 10004053
    Abstract: A mobile communication device with a Radio Frequency (RF) unit and a processing unit is provided. The RF unit transmits and receives wireless signals to and from a service network. The processing unit configures the RF unit to communicate with the service network in a DRX operation, and uses a Physical Broadcast Channel (PBCH) for synchronizing with the service network during the DRX operation.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: June 19, 2018
    Assignee: MEDIATEK INC.
    Inventors: Wei-Jen Chen, Jianxuan Du, Yen-Hui Yeh, Wei-Nan Sun
  • Publication number: 20180070317
    Abstract: Methods and apparatuses pertaining to uplink power consumption reduction for a Narrow Band-Internet of Things (NB-IoT) apparatus. The NB-IoT apparatus may transmit uplink data to a network apparatus via an uplink channel. The network apparatus may decode the uplink data. The network apparatus may further transmit an acknowledgement (ACK) indicator to the NB-IoT apparatus before receiving all the uplink data if the uplink data is decoded successfully. The NB-IoT apparatus may monitor whether an ACK indicator is received from the network apparatus during a transmission gap of the uplink channel. The NB-IoT apparatus may further terminate uplink data transmission if the ACK indicator is received.
    Type: Application
    Filed: August 28, 2017
    Publication date: March 8, 2018
    Inventors: Po-Ying Chen, Mingchun Chiang, Jeng-Yi Tsai, Ho-Chi Huang, Wei-Nan Sun, Wenze Qu
  • Publication number: 20180070326
    Abstract: A mobile communication device with a Radio Frequency (RF) unit and a processing unit is provided. The RF unit transmits and receives wireless signals to and from a service network. The processing unit configures the RF unit to communicate with the service network, and uses broadcast information for performing radio link monitoring, cell measurement, or channel estimation with the service network.
    Type: Application
    Filed: November 8, 2017
    Publication date: March 8, 2018
    Inventors: Wei-Jen CHEN, Jianxuan DU, Yen-Hui YEH, Wei-Nan SUN
  • Publication number: 20170265146
    Abstract: A control method for a radio frequency (RF) receiver of a user equipment (UE) and UE are provided. The control method includes the steps of detecting whether at least one blocker exists; determining a current scenario of the UE when the blocker does not exist; obtaining a signal-to-noise-ratio (SNR) target corresponding to the current scenario; and selecting an operation mode from a plurality of power modes according to the SNR target to operate the RF receiver.
    Type: Application
    Filed: March 9, 2017
    Publication date: September 14, 2017
    Inventors: Tzyuan SHIU, Tzung-Han WU, Shih-Chieh YEN, Wei-Nan SUN, Wei Yu LAI, Caiyi WANG
  • Publication number: 20170164309
    Abstract: A mobile communication device with a Radio Frequency (RF) unit and a processing unit is provided. The RF unit transmits and receives wireless signals to and from a service network. The processing unit configures the RF unit to communicate with the service network in a DRX operation, and uses a Physical Broadcast Channel (PBCH) for synchronizing with the service network during the DRX operation.
    Type: Application
    Filed: February 24, 2017
    Publication date: June 8, 2017
    Inventors: Wei-Jen CHEN, Jianxuan DU, Yen-Hui YEH, Wei-Nan SUN
  • Publication number: 20170077968
    Abstract: An apparatus for interference cancellation includes: a front end processing circuit, for receiving at least an interference signal and a desire signal; an inner processing circuit, for channel/noise estimation and for suppressing the interference signal; and a MIMO (multi-input multi-output) processing circuit, for blindly detecting an interference parameter of the interference signal based on the suppressed interference signal, and for jointly cancelling the interference signal from the desire signal and for demodulating the desire signal based on the detected interference parameter and the channel/noise estimation from the inner processing circuit.
    Type: Application
    Filed: September 15, 2015
    Publication date: March 16, 2017
    Inventors: Cheng-Yi Hsu, Mao-Ching Chiu, Wei-Nan Sun
  • Patent number: 9591599
    Abstract: A mobile communication device with a Radio Frequency (RF) unit and a processing unit is provided. The RF unit transmits and receives wireless signals to and from a service network. The processing unit configures the RF unit to communicate with the service network in a DRX operation, and uses a Physical Broadcast Channel (PBCH) for synchronizing with the service network during the DRX operation.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: March 7, 2017
    Assignee: MEDIATEK INC.
    Inventors: Wei-Jen Chen, Jianxuan Du, Yen-Hui Yeh, Wei-Nan Sun
  • Patent number: 9590667
    Abstract: An apparatus for interference cancellation includes: a front end processing circuit, for receiving at least an interference signal and a desire signal; an inner processing circuit, for channel/noise estimation and for suppressing the interference signal; and a MIMO (multi-input multi-output) processing circuit, for blindly detecting an interference parameter of the interference signal based on the suppressed interference signal, and for jointly cancelling the interference signal from the desire signal and for demodulating the desire signal based on the detected interference parameter and the channel/noise estimation from the inner processing circuit.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: March 7, 2017
    Assignee: MEDIATEK INC.
    Inventors: Cheng-Yi Hsu, Mao-Ching Chiu, Wei-Nan Sun
  • Publication number: 20150189613
    Abstract: A mobile communication device with a Radio Frequency (RF) unit and a processing unit is provided. The RF unit transmits and receives wireless signals to and from a service network. The processing unit configures the RF unit to communicate with the service network in a DRX operation, and uses a Physical Broadcast Channel (PBCH) for synchronizing with the service network during the DRX operation.
    Type: Application
    Filed: November 18, 2014
    Publication date: July 2, 2015
    Inventors: Wei-Jen CHEN, Jianxuan DU, Yen-Hui YEH, Wei-Nan SUN
  • Publication number: 20140092798
    Abstract: An embodiment of the invention provides a method performed by a mobile communication device in a discontinuous reception (DRX) mode. First, the device dumps contemporarily received data and performs multipath search while a beginning part of a relevant sub-frame in a control channel is being transmitted. Next, the device dumps contemporarily received data and decodes dumped data with an accelerated rake while a middle part of the relevant sub-frame is being transmitted. Then, the device decodes contemporarily received data with a normal rake while an ending part of the relevant sub-frame is being transmitted.
    Type: Application
    Filed: September 30, 2012
    Publication date: April 3, 2014
    Applicant: MEDIATEK INC.
    Inventors: Wei-Jen Chen, Lun-Han Chang, Sung-Chiao Li, Wei-Nan Sun
  • Publication number: 20130322402
    Abstract: A method and apparatus for performing channel coding control are provided. The method may include: adding CRC bits to information bits, for performing channel encoding corresponding to the electronic device to generate an encoding result; performing data arrangement corresponding to the electronic device on at least one of the encoding result and a derivative thereof to generate a data arrangement result, for use of generating a processing result corresponding to the electronic device; and transmitting the processing result corresponding to the electronic device to UE. More particularly, for a same set of information bits to be transmitted from a plurality of electronic devices including the electronic device to the UE, the encoding result could be different from that in any other electronic device within the electronic devices, and a coding chain represented by the data arrangement result is different from that in any other electronic device within the electronic devices.
    Type: Application
    Filed: March 13, 2013
    Publication date: December 5, 2013
    Applicant: MEDIATEK INC.
    Inventors: Lun-Han Chang, Wei-De Wu, Wei-Nan Sun
  • Patent number: 8374288
    Abstract: A dummy burst detection method. The method begins with generating a dummy burst nominal power ?DB2 of a received burst and a normal burst nominal power ?NB2 of the received burst, wherein the dummy burst nominal power ?DB2 is generated based on the hypotheses that the received burst is a dummy burst, and the normal burst nominal power ?NB2 is formed based on the hypotheses that the received burst is a normal burst. A likelihood of the received burst is determined according to the dummy burst nominal power ?DB2, the normal burst nominal power ?NB2, and the noise power of the received burst.
    Type: Grant
    Filed: July 16, 2007
    Date of Patent: February 12, 2013
    Assignee: Mediatek Inc.
    Inventors: Chun-Ming Kuo, I-Ping Chang, YingYing Chen, Hung-Shiun Fu, Wei-nan Sun
  • Patent number: 8275086
    Abstract: An apparatus for frequency synchronization is proposed to detect a synchronization signal from the baseband signals. It is featured that three types of detection values are introduced to detect whether the synchronization signal is received or not. More particularly, the claimed frequency synchronization apparatus provides at least one signal power generator for receiving a predetermined number of symbols of the baseband signals, and further calculating an average quality value therefore. Further, the apparatus includes a signal selector for producing a first detection value according to the average quality value. Still further, the apparatus provides a decision unit to produce a second detection value. After that, a signal processor inside the decision unit is used to calculate a third detection value as combining the first detection value and the second detection.
    Type: Grant
    Filed: October 16, 2009
    Date of Patent: September 25, 2012
    Assignee: Mediatek Incorporation
    Inventors: Wei-Nan Sun, Ho-Chi Huang
  • Patent number: 7684508
    Abstract: The invention relates to a transmission diversity detecting apparatus and method. The transmission diversity detecting apparatus is applied in a Wideband Code-Division Multiple-Access (WCDMA) system having a CIPCH channel and a synchronization channel for detecting an antenna diversity of a cell. The transmission diversity detecting apparatus includes an antenna diversity detecting unit for determining the antenna diversity; and a quality indicator generator, electrically connected to the antenna diversity detecting unit, for generating a quality indicator utilized for indicating the reliability of the antenna diversity determined by the antenna diversity detecting unit.
    Type: Grant
    Filed: May 27, 2005
    Date of Patent: March 23, 2010
    Assignee: MediaTek Incorporation
    Inventors: Yen-Hui Yeh, Wei-Nan Sun
  • Publication number: 20100034331
    Abstract: An apparatus for frequency synchronization is proposed to detect a synchronization signal from the baseband signals. It is featured that three types of detection values are introduced to detect whether the synchronization signal is received or not. More particularly, the claimed frequency synchronization apparatus provides at least one signal quality generator for receiving a predetermined number of symbols of the baseband signals, and further calculating an average quality value therefor. Further, the apparatus includes a signal selector for producing a first detection value according to the average quality value. Still further, the apparatus provides a decision unit to produce a second detection value. After that, a signal processor inside the decision unit is used to calculate a third detection value as combining the first detection value and the second detection.
    Type: Application
    Filed: October 16, 2009
    Publication date: February 11, 2010
    Applicant: MEDIATEK INCORPORATION
    Inventors: Wei-Nan SUN, Ho-Chi Huang
  • Patent number: 7627068
    Abstract: An apparatus and method for frequency synchronization is proposed to obtain the pilot tones and evaluate the frequency offset and time offset for frequency synchronization. The frequency synchronization method has the following steps: filtering a baseband signal of a frequency correction burst by using multiple pre-filters; measuring the baseband signal and the signals output from the pre-filters to produce the first power value and the second power values respectively; normalizing the maximum second power value by using the first power value so as to produce the first detection value; using the samples of the baseband signal at different time points and a predetermined mathematical function to produce the second detection value; combining the first and second detection values to produce the third detection value; and using the third detection value to determine whether the frequency correction burst is received or not.
    Type: Grant
    Filed: July 26, 2005
    Date of Patent: December 1, 2009
    Assignee: Mediatek Incorporation
    Inventors: Wei-Nan Sun, Ho-Chi Huang
  • Patent number: 7440524
    Abstract: A GSM communication system uses a channel estimator to generate a channel impulse response estimate from received bursts. Preferred embodiments of such a system include a first correlation unit that uses N midamble bits to evaluate received signals and produce first correlation outputs over a wide search range. A positioning unit identifies candidate first correlation outputs having the best estimation quality within a sliding observation window and uses those outputs as the initial channel impulse response (CIR) estimate. The initial CIR is provided to a second correlation unit that block correlates M (greater than N) midamble bits to the received signal samples. The second correlation unit performs correlation stage by stage with compensation based on the initial and updated CIR to improve the channel estimation.
    Type: Grant
    Filed: August 13, 2002
    Date of Patent: October 21, 2008
    Assignee: Mediatek, Inc.
    Inventors: Ho-chi Hwang, Wei-nan Sun