Patents by Inventor Xinhao Cheng
Xinhao Cheng 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: 9999059Abstract: Synchronization method and apparatus for a wireless wide band system in an interference environment. The method includes: obtaining interference information of a network; selecting at least one channel based at least in part on the interference information; and transmitting resource information through the at least one channel, wherein the resource information indicates a resource allocation determined at least in part on the interference information; and wherein a position of the at least one channel is indicated by a synchronization sequence. The present invention also provides another method and apparatus for synchronization.Type: GrantFiled: March 13, 2014Date of Patent: June 12, 2018Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Xinhao Cheng, Yonghua Lin, Jianbin Tang, Junsong Wang, Qing Wang
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Patent number: 9917789Abstract: Embodiments include methods and apparatuses for allocating computing elements in a data receiving link. Aspects include receiving baseband data in the data receiving link and allocating a computing element from a resource pool of computing elements for converting the baseband data to transmission block data.Type: GrantFiled: July 22, 2014Date of Patent: March 13, 2018Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Xinhao Cheng, Yonghua Lin, Chao Xue, Rong Yan, Chao Zhu
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Patent number: 9794828Abstract: A radio unit configured to connect to a baseband processing unit includes a transformation unit configured to obtain uplink time domain signal data and transform the uplink time domain signal data into uplink frequency domain signal data; and a compression unit configured to compress the uplink frequency domain signal data by using a compression algorithm.Type: GrantFiled: September 16, 2015Date of Patent: October 17, 2017Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Xinhao Cheng, Mingqiang Li, Yonghua Lin, Qing Wang, Chao Xue, Rong Yan, Hai Zhan, Chao Zhu
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Patent number: 9461850Abstract: Various embodiments of the present invention provide a method and apparatus for parallel data processing. In one embodiment of the present invention, there is provided a method for parallel data processing, comprising: receiving baseband data corresponding to multiple antennas from uplink data; converting the baseband data from time-domain signals to frequency-domain signals; processing the frequency-domain signals at least partially in parallel by multiple processing units in a general-purpose processor so as to restore transmitted code blocks; and constructing transmission block (TB) based on the transmitted code blocks. In one embodiment of the present invention, there is provided an apparatus for parallel data processing. By means of the method and apparatus of the present invention, the parallel data processing capacity of a general-purpose data processor may be used to process, in parallel as much as possible, data in uplink data transmission and further improve the receiver operation efficiency.Type: GrantFiled: April 21, 2014Date of Patent: October 4, 2016Assignee: GLOBALFOUNDRIES INC.Inventors: Xinhao Cheng, Yonghua Lin, Chao Xue, Rong Yan, Chao Zhu
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Publication number: 20160182195Abstract: Embodiments include methods and apparatuses for allocating computing elements in a data receiving link. Aspects include receiving baseband data in the data receiving link and allocating a computing element from a resource pool of computing elements for converting the baseband data to transmission block data.Type: ApplicationFiled: July 22, 2014Publication date: June 23, 2016Inventors: XINHAO CHENG, YONGHUA LIN, CHAO XUE, RONG YAN, CHAO ZHU
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Patent number: 9271292Abstract: This invention relates to wireless signal process, and discloses a method for interference process of an interference signal in an OFDM based wireless communication system, comprising: receiving an interference signal; performing time domain and frequency domain analyses on the interference signal to obtain interference characteristics of the interference signal; determining an interference category of the interference signal according to the interference characteristics of the interference signal; and performing interference process on the interference signal in view of the interference category of the interference signal. The method for interference signal process of this invention is effective to both homogeneous network interference and heterogeneous network interference, so that frequency spectrum sharing of homogeneous networks and existing heterogeneous networks can be realized.Type: GrantFiled: June 27, 2013Date of Patent: February 23, 2016Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Xinhao Cheng, Yonghua Lin, Hang Liu, Jianbin Tang, Jun Song Wang, Qing Wang, Xian Wei Yi, Zhen Bo Zhu
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Publication number: 20160050677Abstract: Synchronization method and apparatus for a wireless wide band system in an interference environment. The method includes: obtaining interference information of a network; selecting at least one channel based at least in part on the interference information; and transmitting resource information through the at least one channel, wherein the resource information indicates a resource allocation determined at least in part on the interference information; and wherein a position of the at least one channel is indicated by a synchronization sequence. The present invention also provides another method and apparatus for synchronization.Type: ApplicationFiled: March 13, 2014Publication date: February 18, 2016Applicant: International Business Machines CorporationInventors: Xinhao Cheng, Yonghua Lin, Jianbin Tang, Junsong Wang, Qing Wang
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Publication number: 20160007231Abstract: A radio unit configured to connect to a baseband processing unit includes a transformation unit configured to obtain uplink time domain signal data and transform the uplink time domain signal data into uplink frequency domain signal data; and a compression unit configured to compress the uplink frequency domain signal data by using a compression algorithm.Type: ApplicationFiled: September 16, 2015Publication date: January 7, 2016Inventors: Xinhao Cheng, Mingqiang Li, Yonghua Lin, Qing Wang, Chao Xue, Rong Yan, Hai Zhan, Chao Zhu
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Patent number: 9220004Abstract: A radio unit configured to connect to a baseband processing unit includes a transformation unit configured to obtain uplink time domain signal data and transform the uplink time domain signal data into uplink frequency domain signal data; and a compression unit configured to compress the uplink frequency domain signal data by using a compression algorithm.Type: GrantFiled: June 26, 2013Date of Patent: December 22, 2015Assignee: International Business Machines CorporationInventors: Xinhao Cheng, Mingqiang Li, Yonghua Lin, Qing Wang, Chao Xue, Rong Yan, Hai Zhan, Chao Zhu
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Patent number: 9220003Abstract: A radio unit configured to connect to a baseband processing unit includes a transformation unit configured to obtain uplink time domain signal data and transform the uplink time domain signal data into uplink frequency domain signal data; and a compression unit configured to compress the uplink frequency domain signal data by using a compression algorithm.Type: GrantFiled: May 22, 2013Date of Patent: December 22, 2015Assignee: International Business Machines CorporationInventors: Xinhao Cheng, Mingqiang Li, Yonghua Lin, Qing Wang, Chao Xue, Rong Yan, Hai Zhan, Chao Zhu
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Patent number: 9094038Abstract: The present invention relates to data compression and decompression, and particularly relates to a method and an apparatus for compressing and decompressing signal data. In an embodiment of the present invention, there is disclosed a method for compressing signal data, comprising: obtaining signal data; determining block lengths of a plurality of data blocks into which the signal data are divided, and determining exponents of the data blocks; forming a mantissa sequence of the data block by using the exponent of the data block to compress signal data contained in the data block; and forming a compressed data block by using the block length, the exponent and the mantissa sequence of the data block. By constructing a variable-length data block adapted to dynamic characteristics of signal data, the method for compressing signal data of the present invention increases the compression ratio of signal data.Type: GrantFiled: June 24, 2013Date of Patent: July 28, 2015Assignee: International Business Machines CorporationInventors: Xinhao Cheng, Mingqiang Li, Yonghua Lin, Qing Wang, Chao Xue, Rong Yan, Hai Zhan, Chao Zhu
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Patent number: 8902090Abstract: The present invention relates to data compression and decompression, and particularly relates to a method and an apparatus for compressing and decompressing signal data. In an embodiment of the present invention, there is disclosed a method for compressing signal data, comprising: obtaining signal data; determining block lengths of a plurality of data blocks into which the signal data are divided, and determining exponents of the data blocks; forming a mantissa sequence of the data block by using the exponent of the data block to compress signal data contained in the data block; and forming a compressed data block by using the block length, the exponent and the mantissa sequence of the data block. By constructing a variable-length data block adapted to dynamic characteristics of signal data, the method for compressing signal data of the present invention increases the compression ratio of signal data.Type: GrantFiled: May 22, 2013Date of Patent: December 2, 2014Assignee: International Business Machines CorporationInventors: Xinhao Cheng, Mingqiang Li, Yonghua Lin, Qing Wang, Chao Xue, Rong Yan, Hai Zhan, Chao Zhu
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Publication number: 20140321582Abstract: Various embodiments of the present invention provide a method and apparatus for parallel data processing. In one embodiment of the present invention, there is provided a method for parallel data processing, comprising: receiving baseband data corresponding to multiple antennas from uplink data; converting the baseband data from time-domain signals to frequency-domain signals; processing the frequency-domain signals at least partially in parallel by multiple processing units in a general-purpose processor so as to restore transmitted code blocks; and constructing transmission block (TB) based on the transmitted code blocks. In one embodiment of the present invention, there is provided an apparatus for parallel data processing. By means of the method and apparatus of the present invention, the parallel data processing capacity of a general-purpose data processor may be used to process, in parallel as much as possible, data in uplink data transmission and further improve the receiver operation efficiency.Type: ApplicationFiled: April 21, 2014Publication date: October 30, 2014Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Xinhao Cheng, Yonghua Lin, Chao Xue, Rong Yan, Chao Zhu
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Publication number: 20140016579Abstract: This invention relates to wireless signal process, and discloses a method for interference process of an interference signal in an OFDM based wireless communication system, comprising: receiving an interference signal; performing time domain and frequency domain analyses on the interference signal to obtain interference characteristics of the interference signal; determining an interference category of the interference signal according to the interference characteristics of the interference signal; and performing interference process on the interference signal in view of the interference category of the interference signal. The method for interference signal process of this invention is effective to both homogeneous network interference and heterogeneous network interference, so that frequency spectrum sharing of homogeneous networks and existing heterogeneous networks can be realized.Type: ApplicationFiled: June 27, 2013Publication date: January 16, 2014Inventors: Xinhao Cheng, Yonghua Lin, Hang Liu, Jianbin Tang, Jun Song Wang, Qing Wang, Xian Wei Yi, Zhen Bo Zhu
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Publication number: 20130324176Abstract: A radio unit configured to connect to a baseband processing unit includes a transformation unit configured to obtain uplink time domain signal data and transform the uplink time domain signal data into uplink frequency domain signal data; and a compression unit configured to compress the uplink frequency domain signal data by using a compression algorithm.Type: ApplicationFiled: May 22, 2013Publication date: December 5, 2013Applicant: International Business Machines CorporationInventors: Xinhao Cheng, Mingqiang Li, Yonghua Lin, Qing Wang, Chao Xue, Rong Yan, Hai Zhan, Chao Zhu
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Publication number: 20130321182Abstract: The present invention relates to data compression and decompression, and particularly relates to a method and an apparatus for compressing and decompressing signal data. In an embodiment of the present invention, there is disclosed a method for compressing signal data, comprising: obtaining signal data; determining block lengths of a plurality of data blocks into which the signal data are divided, and determining exponents of the data blocks; forming a mantissa sequence of the data block by using the exponent of the data block to compress signal data contained in the data block; and forming a compressed data block by using the block length, the exponent and the mantissa sequence of the data block. By constructing a variable-length data block adapted to dynamic characteristics of signal data, the method for compressing signal data of the present invention increases the compression ratio of signal data.Type: ApplicationFiled: June 24, 2013Publication date: December 5, 2013Inventors: Xinhao Cheng, Mingqiang Li, Yonghua Lin, Qing Wang, Chao Xue, Rong Yan, Hai Zhan, Chao Zhu
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Publication number: 20130321181Abstract: The present invention relates to data compression and decompression, and particularly relates to a method and an apparatus for compressing and decompressing signal data. In an embodiment of the present invention, there is disclosed a method for compressing signal data, comprising: obtaining signal data; determining block lengths of a plurality of data blocks into which the signal data are divided, and determining exponents of the data blocks; forming a mantissa sequence of the data block by using the exponent of the data block to compress signal data contained in the data block; and forming a compressed data block by using the block length, the exponent and the mantissa sequence of the data block. By constructing a variable-length data block adapted to dynamic characteristics of signal data, the method for compressing signal data of the present invention increases the compression ratio of signal data.Type: ApplicationFiled: May 22, 2013Publication date: December 5, 2013Applicant: International Business Machines CorporationInventors: Xinhao Cheng, Mingqiang Li, Yonghua Lin, Qing Wang, Chao Xue, Rong Yan, Hai Zhan, Chao Zhu
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Publication number: 20130322336Abstract: A radio unit configured to connect to a baseband processing unit includes a transformation unit configured to obtain uplink time domain signal data and transform the uplink time domain signal data into uplink frequency domain signal data; and a compression unit configured to compress the uplink frequency domain signal data by using a compression algorithm.Type: ApplicationFiled: June 26, 2013Publication date: December 5, 2013Inventors: Xinhao Cheng, Mingqiang Li, Yonghua Lin, Qing Wang, Chao Xue, Rong Yan, Hai Zhan, Chao Zhu