Patents by Inventor Ciou-Ping Wu

Ciou-Ping Wu 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: 9369245
    Abstract: A communications apparatus is provided. A controller module obtains information regarding a Hybrid Automatic Repeat Request (HARQ) round trip time (RTT) in an HARQ process, arranging one or more almost blank sub-frame(s) in one or more frame(s) according to the HARQ RTT information and generating a sub-frame pattern describing the arrangement of the almost blank sub-frame(s), wherein the HARQ RTT is defined by the communications system. A transceiver module transmits at least a signal carrying information regarding the sub-frame pattern to a peer communications apparatus in the communications system. In addition, at least one almost blank sub-frame in the sub-frame pattern is arranged in a sub-frame for the peer communications apparatus to transmit an uplink grant message for granting an user equipment to transmit uplink data to the peer communications apparatus.
    Type: Grant
    Filed: October 15, 2014
    Date of Patent: June 14, 2016
    Assignee: MEDIATEK INC.
    Inventors: Ciou-Ping Wu, Chien-Hwa Hwang, Yu-Hao Chang
  • Patent number: 9252931
    Abstract: A method for coordinating transmissions between different communications apparatuses in a communications system. The method obtains a sub-frame indicator carried in a first control signal transmitted in a control region of a first sub-frame received from an evolved node B (eNB), wherein the sub-frame indicator indicates resource allocation of one or more sub-frame following the first sub-frame. The method then determines whether a second sub-frame following the first sub-frame and received from the eNB is an almost blank sub-frame according to the sub-frame indicator. When the second sub-frame is not the almost blank sub-frame, obtaining information regarding a start position of a data region of the second sub-frame from a second control signal transmitted in a control region of the second sub-frame.
    Type: Grant
    Filed: October 15, 2014
    Date of Patent: February 2, 2016
    Assignee: MEDIATEK INC.
    Inventors: Ciou-Ping Wu, Chien-Hwa Hwang, Yu-Hao Chang
  • Patent number: 9019931
    Abstract: A communications apparatus is provided. A controller module generates a suggested sub-frame pattern describing suggested arrangement of one or more almost blank sub-frame(s) in one or more frame(s) and schedules control signal and/or data transmissions according to the suggested sub-frame pattern. A transceiver module transmits at least a first signal carrying information regarding the suggested sub-frame pattern to a peer communications apparatus. The peer communications apparatus does not schedule data transmissions in the almost blank sub-frame(s).
    Type: Grant
    Filed: October 15, 2014
    Date of Patent: April 28, 2015
    Assignee: MediaTek Inc.
    Inventors: Ciou-Ping Wu, Chien-Hwa Hwang, Yu-Hao Chang
  • Publication number: 20150029991
    Abstract: A communications apparatus is provided. A controller module generates a suggested sub-frame pattern describing suggested arrangement of one or more almost blank sub-frame(s) in one or more frame(s) and schedules control signal and/or data transmissions according to the suggested sub-frame pattern. A transceiver module transmits at least a first signal carrying information regarding the suggested sub-frame pattern to a peer communications apparatus. The peer communications apparatus does not schedule data transmissions in the almost blank sub-frame(s).
    Type: Application
    Filed: October 15, 2014
    Publication date: January 29, 2015
    Inventors: Ciou-Ping WU, Chien-Hwa HWANG, Yu-Hao CHANG
  • Publication number: 20150029891
    Abstract: A communications apparatus is provided. A controller determines two different sub-frame subsets for configuring a peer communications apparatus to perform channel state information measurement according to time-domain variation of a level of interference of the peer communications apparatus obtained from one or more previous measurement result(s). A transceiver transmits a configuration message carrying information regarding the two sub-frame subsets to the peer communications apparatus and receives one or more measurement result reporting message(s) carrying information regarding the measurement result(s) from the peer communications apparatus.
    Type: Application
    Filed: October 13, 2014
    Publication date: January 29, 2015
    Inventors: Chien-Hwa HWANG, Ciou-Ping WU, Yih-Shen CHEN
  • Publication number: 20150029992
    Abstract: A method for coordinating transmissions between different communications apparatuses in a communications system. The method obtains a sub-frame indicator carried in a first control signal transmitted in a control region of a first sub-frame received from an evolved node B (eNB), wherein the sub-frame indicator indicates resource allocation of one or more sub-frame following the first sub-frame. The method then determines whether a second sub-frame following the first sub-frame and received from the eNB is an almost blank sub-frame according to the sub-frame indicator. When the second sub-frame is not the almost blank sub-frame, obtaining information regarding a start position of a data region of the second sub-frame from a second control signal transmitted in a control region of the second sub-frame.
    Type: Application
    Filed: October 15, 2014
    Publication date: January 29, 2015
    Inventors: Ciou-Ping WU, Chien-Hwa HWANG, Yu-Hao CHANG
  • Publication number: 20150029993
    Abstract: A communications apparatus is provided. A controller module obtains information regarding a Hybrid Automatic Repeat Request (HARQ) round trip time (RTT) in an HARQ process, arranging one or more almost blank sub-frame(s) in one or more frame(s) according to the HARQ RTT information and generating a sub-frame pattern describing the arrangement of the almost blank sub-frame(s), wherein the HARQ RTT is defined by the communications system. A transceiver module transmits at least a signal carrying information regarding the sub-frame pattern to a peer communications apparatus in the communications system. In addition, at least one almost blank sub-frame in the sub-frame pattern is arranged in a sub-frame for the peer communications apparatus to transmit an uplink grant message for granting an user equipment to transmit uplink data to the peer communications apparatus.
    Type: Application
    Filed: October 15, 2014
    Publication date: January 29, 2015
    Inventors: Ciou-Ping WU, Chien-Hwa HWANG, Yu-Hao CHANG
  • Patent number: 8923126
    Abstract: A communications apparatus is provided. A controller module generates a suggested sub-frame pattern describing suggested arrangement of one or more almost blank sub-frame(s) in one or more frame(s) and schedules control signal and/or data transmissions according to the suggested sub-frame pattern. A transceiver module transmits at least a first signal carrying information regarding the suggested sub-frame pattern to a peer communications apparatus. The peer communications apparatus does not schedule data transmissions in the almost blank sub-frame(s).
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: December 30, 2014
    Assignee: Mediatek
    Inventors: Ciou-Ping Wu, Chien-Hwa Hwang, Yu-Hao Chang
  • Patent number: 8799735
    Abstract: A channel interleaver comprises a novel constellation-based permutation module. The channel interleaver first receives a plurality of sets of encoded bits generated from an FEC encoder. The encoded bits are distributed into multiple subblocks and each subblock comprises a plurality of adjacent bits. A subblock interleaver interleaves each subblock and outputs a plurality of interleaved bits. The constellation-based permutation module rearranges the interleaved bits and outputs a plurality of rearranged bits. The rearranged bits are supplied to a symbol mapper such that a plurality of consecutively encoded bits in the same set of the encoded bits generated from the FEC encoder is prevented to be mapped onto the same level of bit reliability of a modulation symbol. In addition, the plurality of adjacent bits of each subblock is also prevented to be mapped onto the same level of bit reliability to achieve constellation diversity and to improve decoding performance.
    Type: Grant
    Filed: December 30, 2009
    Date of Patent: August 5, 2014
    Assignee: Mediatek Inc.
    Inventors: Ciou-Ping Wu, Pei-Kai Liao, Yu-Hao Chang, Yih-Shen Chen
  • Patent number: 8468396
    Abstract: A channel interleaver comprises a novel constellation-based permutation module. The channel interleaver first receives a plurality of sets of encoded bits generated from an FEC encoder. The encoded bits are distributed into multiple subblocks and each subblock comprises a plurality of adjacent bits. A subblock interleaver interleaves each subblock and outputs a plurality of interleaved bits. The constellation-based permutation module rearranges the interleaved bits and outputs a plurality of rearranged bits. The rearranged bits are supplied to a symbol mapper such that a plurality of consecutively encoded bits in the same set of the encoded bits generated from the FEC encoder is prevented to be mapped onto the same level of bit reliability of a modulation symbol. In addition, the plurality of adjacent bits of each subblock is also prevented to be mapped onto the same level of bit reliability to achieve constellation diversity and to improve decoding performance.
    Type: Grant
    Filed: December 30, 2009
    Date of Patent: June 18, 2013
    Assignee: Mediatek, Inc.
    Inventors: Ciou-Ping Wu, Pei-Kai Liao, Yu-Hao Chang, Yih-Shen Chen
  • Publication number: 20120120846
    Abstract: A communications apparatus is provided. A controller determines two different sub-frame subsets for configuring a peer communications apparatus to perform channel state information measurement according to time-domain variation of a level of interference of the peer communications apparatus obtained from one or more previous measurement result(s). A transceiver transmits a configuration message carrying information regarding the two sub-frame subsets to the peer communications apparatus and receives one or more measurement result reporting message(s) carrying information regarding the measurement result(s) from the peer communications apparatus.
    Type: Application
    Filed: November 11, 2011
    Publication date: May 17, 2012
    Applicant: MEDIATEK INC.
    Inventors: Chien-Hwa Hwang, Ciou-Ping Wu, Yih-Shen Chen
  • Publication number: 20110310830
    Abstract: A communication apparatus is provided. A controller module generates a suggested sub-frame pattern describing suggested arrangement of one or more almost blank sub-frame(s) in one or more frame(s) and schedules control signal and/or data transmissions according to the suggested sub-frame pattern. A radio frequency module transmits at least a first signal carrying information regarding the suggested sub-frame pattern to a peer communications apparatus. The peer communications apparatus does not schedule data transmissions in the almost blank sub-frame(s).
    Type: Application
    Filed: June 20, 2011
    Publication date: December 22, 2011
    Applicant: MEDIATEK INC.
    Inventors: Ciou-Ping Wu, Chien-Hwa Hwang, Yu-Hao Chang
  • Publication number: 20100169738
    Abstract: A channel interleaver comprises a novel constellation-based permutation module. The channel interleaver first receives a plurality of sets of encoded bits generated from an FEC encoder. The encoded bits are distributed into multiple subblocks and each subblock comprises a plurality of adjacent bits. A subblock interleaver interleaves each subblock and outputs a plurality of interleaved bits. The constellation-based permutation module rearranges the interleaved bits and outputs a plurality of rearranged bits. The rearranged bits are supplied to a symbol mapper such that a plurality of consecutively encoded bits in the same set of the encoded bits generated from the FEC encoder is prevented to be mapped onto the same level of bit reliability of a modulation symbol. In addition, the plurality of adjacent bits of each subblock is also prevented to be mapped onto the same level of bit reliability to achieve constellation diversity and to improve decoding performance.
    Type: Application
    Filed: December 30, 2009
    Publication date: July 1, 2010
    Inventors: Ciou-Ping Wu, Pei-Kai Liao, Yu-Hao Chang, Yih-Shen Chen
  • Publication number: 20100169722
    Abstract: A channel interleaver comprises a novel constellation-based permutation module. The channel interleaver first receives a plurality of sets of encoded bits generated from an FEC encoder. The encoded bits are distributed into multiple subblocks and each subblock comprises a plurality of adjacent bits. A subblock interleaver interleaves each subblock and outputs a plurality of interleaved bits. The constellation-based permutation module rearranges the interleaved bits and outputs a plurality of rearranged bits. The rearranged bits are supplied to a symbol mapper such that a plurality of consecutively encoded bits in the same set of the encoded bits generated from the FEC encoder is prevented to be mapped onto the same level of bit reliability of a modulation symbol. In addition, the plurality of adjacent bits of each subblock is also prevented to be mapped onto the same level of bit reliability to achieve constellation diversity and to improve decoding performance.
    Type: Application
    Filed: December 30, 2009
    Publication date: July 1, 2010
    Inventors: Ciou-Ping Wu, Pei-Kai Liao, Yu-Hao Chang, Yih-Shen Chen