Patents by Inventor Jianbin Tang
Jianbin Tang 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: 9247538Abstract: An apparatus for sharing frequencies in an orthogonal frequency-division multiplexing OFDM-based wireless communication system, wherein the OFDM-based wireless communication system comprises a base station and a mobile device that work within a radio frequency band, the method comprising: detecting an interference signal in the radio frequency band; setting by the base station, based upon the interference signal, interference indication information in a control header of a downlink frame to be sent to the mobile device, the interference indication information indicating a frequency range that is occupied by the interference signal in the radio frequency band; and sending by the base station the downlink frame to the mobile device, such that the mobile device may, based upon the interference indication information, avoid the frequency range where the interference signal is located.Type: GrantFiled: July 15, 2015Date of Patent: January 26, 2016Assignee: International Business Machines CorporationInventors: Yong Hua Lin, Jianbin Tang, Qing Wang, Jun Song Wang, Rong Yan, Hai Zhan, Chao Zhu, Zhen Bo Zhu
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Publication number: 20150351107Abstract: A method for processing interference in wireless communication at a base station, wherein at least some of a plurality of (Radio Frequency) RF channels in the base station operates at a current operating frequency point assigned to the base station includes detecting interference of one or more candidate frequency points by using at least one RF channel, wherein the one or more candidate frequency points are different from the current operating frequency point; reporting result of detecting interference of the one or more candidate frequency points to a resource manager; and in response to the resource manager assigning one of the one or more candidate frequency points to the base station, notifying a user to switch from the current operating frequency point to the assigned candidate frequency point.Type: ApplicationFiled: June 22, 2015Publication date: December 3, 2015Inventors: YU BO LI, YONG HUA LIN, JIANBIN TANG, JUN SONG WANG, QI JUN WANG, QING WANG
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Publication number: 20150349895Abstract: A method for processing interference in wireless communication at a base station, wherein at least some of a plurality of (Radio Frequency) RF channels in the base station operates at a current operating frequency point assigned to the base station includes detecting interference of one or more candidate frequency points by using at least one RF channel, wherein the one or more candidate frequency points are different from the current operating frequency point; reporting result of detecting interference of the one or more candidate frequency points to a resource manager; and in response to the resource manager assigning one of the one or more candidate frequency points to the base station, notifying a user to switch from the current operating frequency point to the assigned candidate frequency point.Type: ApplicationFiled: May 20, 2015Publication date: December 3, 2015Inventors: YU BO LI, YONG HUA LIN, JIANBIN TANG, JUN SONG WANG, QI JUN WANG, QING WANG
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Patent number: 9191824Abstract: A method and apparatus for sharing frequencies in an orthogonal frequency-division multiplexing OFDM-based wireless communication system, wherein the OFDM-based wireless communication system comprises a base station and a mobile device that work within a radio frequency band, the method comprising: detecting an interference signal in the radio frequency band; setting by the base station, based upon the interference signal, interference indication information in a control header of a downlink frame to be sent to the mobile device, the interference indication information indicating a frequency range that is occupied by the interference signal in the radio frequency band; and sending by the base station the downlink frame to the mobile device, such that the mobile device may, based upon the interference indication information, avoid the frequency range where the interference signal is located.Type: GrantFiled: June 29, 2012Date of Patent: November 17, 2015Assignee: International Business Machines CorporationInventors: Yong Hua Lin, Jianbin Tang, Qing Wang, Jun Song Wang, Rong Yan, Hai Zhan, Chao Zhu, Zhen Bo Zhu
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Publication number: 20150319740Abstract: An apparatus for sharing frequencies in an orthogonal frequency-division multiplexing OFDM-based wireless communication system, wherein the OFDM-based wireless communication system comprises a base station and a mobile device that work within a radio frequency band, the method comprising: detecting an interference signal in the radio frequency band; setting by the base station, based upon the interference signal, interference indication information in a control header of a downlink frame to be sent to the mobile device, the interference indication information indicating a frequency range that is occupied by the interference signal in the radio frequency band; and sending by the base station the downlink frame to the mobile device, such that the mobile device may, based upon the interference indication information, avoid the frequency range where the interference signal is located.Type: ApplicationFiled: July 15, 2015Publication date: November 5, 2015Applicant: International Business Machines CorporationInventors: Yong Hua LIN, Jianbin TANG, Qing WANG, Jun Song WANG, Rong YAN, Hai ZHAN, Chao ZHU, Zhen Bo ZHU
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Publication number: 20150295742Abstract: A method for signal modulation includes determining at least one guard band between at least two continuous available sub-bands among multiple available sub-bands that can be used by a communication entity and are discrete; and using the at least one guard band in signal modulation for the communication entity.Type: ApplicationFiled: June 23, 2015Publication date: October 15, 2015Inventors: Xin Hao Cheng, Yong Hua Lin, Jianbin Tang, Jun Song Wang
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Publication number: 20150280859Abstract: An adaptive modulation coding method includes obtaining an estimated signal-to-interference-plus-noise ratio (SINR) and a packet error rate (PER) of a communication link of a user terminal; setting a first adjustment amount of the SINR of the communication link according to the PER of the communication link; calculating an effective SINR of the communication link according to the estimated SINR of the communication link and the first adjustment amount of the SINR of the communication link; and determining a modulation coding scheme of the communication link according to the effective SINR of the communication link.Type: ApplicationFiled: June 17, 2015Publication date: October 1, 2015Inventors: Yonghua Lin, Jianbin Tang, Jun Song Wang, Qi Jun Wang
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Publication number: 20150249561Abstract: A method for signal modulation includes determining at least one guard band between at least two continuous available sub-bands among multiple available sub-bands that can be used by a communication entity and are discrete; and using the at least one guard band in signal modulation for the communication entity.Type: ApplicationFiled: February 19, 2015Publication date: September 3, 2015Inventors: Xin Hao Cheng, Yong Hua Lin, Jianbin Tang, Jun Song Wang
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Patent number: 9125062Abstract: A method and apparatus for sharing frequencies in an orthogonal frequency-division multiplexing OFDM-based wireless communication system, wherein the OFDM-based wireless communication system comprises a base station and a mobile device that work within a radio frequency band, the method comprising: detecting an interference signal in the radio frequency band; setting by the base station, based upon the interference signal, interference indication information in a control header of a downlink frame to be sent to the mobile device, the interference indication information indicating a frequency range that is occupied by the interference signal in the radio frequency band; and sending by the base station the downlink frame to the mobile device, such that the mobile device may, based upon the interference indication information, avoid the frequency range where the interference signal is located.Type: GrantFiled: February 4, 2013Date of Patent: September 1, 2015Assignee: International Business Machines CorporationInventors: Yong Hua Lin, Jianbin Tang, Qing Wang, Jun Song Wang, Rong Yan, Hai Zhan, Chao Zhu, Zhen Bo Zhu
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Publication number: 20150215069Abstract: An adaptive modulation coding method includes obtaining an estimated signal-to-interference-plus-noise ratio (SINR) and a packet error rate (PER) of a communication link of a user terminal; setting a first adjustment amount of the SINR of the communication link according to the PER of the communication link; calculating an effective SINR of the communication link according to the estimated SINR of the communication link and the first adjustment amount of the SINR of the communication link; and determining a modulation coding scheme of the communication link according to the effective SINR of the communication link.Type: ApplicationFiled: January 15, 2015Publication date: July 30, 2015Inventors: Yonghua Lin, Jianbin Tang, Jun Song Wang, Qi Jun Wang
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Publication number: 20150207483Abstract: An anti-interference method and device for a wireless communication system. The method includes: receiving a RF signal; analyzing the RF signal to obtain the power variation characteristic of the RF signal; and determining a gain control method according to the power variation characteristic of the RF signal. The anti-interference methods and devices according to the embodiments of the present invention can ensure the communication quality of the wireless communication system in a case that there is strong burst interference.Type: ApplicationFiled: January 22, 2014Publication date: July 23, 2015Applicant: International Business Machines CorporationInventors: Yonghua Lin, Hang Liu, Jianbin Tang, Jun Song Wang, Qing Wang
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Patent number: 9066239Abstract: A method and apparatus for reducing spectrum interference between wireless networks. This is realized by arranging at least one sub-coordinating apparatus, namely, a monitoring apparatus, in respective wireless network, and by arranging a coordinating apparatus, namely, an allocation apparatus in the whole network. Wherein, the sub-coordinating apparatus monitors the spectrum utilization situation of the wireless network where it is located, reports it to the coordinating apparatus, and requests the coordinating apparatus for spectrum resource when new spectrum resource is needed. The coordinating apparatus maintains the spectrum utilization information of each wireless network, and allocates appropriate spectrum resource to the sub-coordinating apparatus which requests spectrum resource based on the maintained information.Type: GrantFiled: August 22, 2012Date of Patent: June 23, 2015Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Yonghua Lin, Jianbin Tang, Jun Song Wang, Qing Wang, Rong Yan, Hai Zhan, Chao Zhu, Zhen Bo Zhu
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Publication number: 20150117414Abstract: A method and system for handing off a terminal among a plurality of wireless access points (APs) connected to a central management AP. The method comprising: receiving network condition information of a terminal communicatively connected to a first wireless AP among the plurality of wireless APs. Determining a second wireless AP the plurality of wireless APs to which the terminal is to be handed off based on the network condition information of the terminal. The second wireless AP is virtually connected to the terminal. Submitting a handoff request to the second wireless AP. Notifying the terminal to hand off to the second wireless AP in response to receiving a handoff response from the second wireless AP.Type: ApplicationFiled: October 27, 2014Publication date: April 30, 2015Inventors: Jianbin Tang, Feng J. Wang, Yu Wang, Jun Chi Yan, Chao E. Zhang, Qian Kun Zhao
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Patent number: 8983376Abstract: A method and apparatus for reducing spectrum interference between wireless networks. This is realized by arranging at least one sub-coordinating apparatus, namely, a monitoring apparatus, in respective wireless network, and by arranging a coordinating apparatus, namely, an allocation apparatus in the whole network. Wherein, the sub-coordinating apparatus monitors the spectrum utilization situation of the wireless network where it is located, reports it to the coordinating apparatus, and requests the coordinating apparatus for spectrum resource when new spectrum resource is needed. The coordinating apparatus maintains the spectrum utilization information of each wireless network, and allocates appropriate spectrum resource to the sub-coordinating apparatus which requests spectrum resource based on the maintained information.Type: GrantFiled: May 24, 2012Date of Patent: March 17, 2015Assignee: International Business Machines CorporationInventors: Yonghua Lin, Jianbin Tang, Jun Song Wang, Qing Wang, Rong Yan, Hai Zhan, Chao Zhu, Zhen Bo Zhu
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Publication number: 20140293895Abstract: A method and system for processing interference received by a wireless communication terminal. The method including: receiving interference information from the wireless communication terminal, wherein the interference information is used to identify an interfered sub-channel(s) of the wireless communication terminal; and adjusting a downlink resource allocated to the wireless communication terminal based on the interference information.Type: ApplicationFiled: March 25, 2014Publication date: October 2, 2014Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Yonghua Lin, Jianbin Tang, Jun Song Wang, Qing Wang
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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: 20130003674Abstract: A method and apparatus for sharing frequencies in an orthogonal frequency-division multiplexing OFDM-based wireless communication system, wherein the OFDM-based wireless communication system comprises a base station and a mobile device that work within a radio frequency band, the method comprising: detecting an interference signal in the radio frequency band; setting by the base station, based upon the interference signal, interference indication information in a control header of a downlink frame to be sent to the mobile device, the interference indication information indicating a frequency range that is occupied by the interference signal in the radio frequency band; and sending by the base station the downlink frame to the mobile device, such that the mobile device may, based upon the interference indication information, avoid the frequency range where the interference signal is located.Type: ApplicationFiled: June 29, 2012Publication date: January 3, 2013Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Yong Hua LIN, Jianbin TANG, Qing WANG, Jun Song WANG, Rong YAN, Hai ZHAN, Chao ZHU, Zhen Bo ZHU
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Publication number: 20120315942Abstract: A method and apparatus for reducing spectrum interference between wireless networks. This is realized by arranging at least one sub-coordinating apparatus, namely, a monitoring apparatus, in respective wireless network, and by arranging a coordinating apparatus, namely, an allocation apparatus in the whole network. Wherein, the sub-coordinating apparatus monitors the spectrum utilization situation of the wireless network where it is located, reports it to the coordinating apparatus, and requests the coordinating apparatus for spectrum resource when new spectrum resource is needed. The coordinating apparatus maintains the spectrum utilization information of each wireless network, and allocates appropriate spectrum resource to the sub-coordinating apparatus which requests spectrum resource based on the maintained information.Type: ApplicationFiled: August 22, 2012Publication date: December 13, 2012Applicant: International Business Machines CorporationInventors: Yonghua Lin, Jianbin Tang, Jun Song Wang, Qing Wang, Rong Yan, Hai Zhan, Chao Zhu, Zhen Bo Zhu
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Publication number: 20120302273Abstract: A method and apparatus for reducing spectrum interference between wireless networks. This is realized by arranging at least one sub-coordinating apparatus, namely, a monitoring apparatus, in respective wireless network, and by arranging a coordinating apparatus, namely, an allocation apparatus in the whole network. Wherein, the sub-coordinating apparatus monitors the spectrum utilization situation of the wireless network where it is located, reports it to the coordinating apparatus, and requests the coordinating apparatus for spectrum resource when new spectrum resource is needed. The coordinating apparatus maintains the spectrum utilization information of each wireless network, and allocates appropriate spectrum resource to the sub-coordinating apparatus which requests spectrum resource based on the maintained information.Type: ApplicationFiled: May 24, 2012Publication date: November 29, 2012Applicant: International Business Machines CorporationInventors: Yonghua Lin, Jianbin Tang, Jun Song Wang, Qing Wang, Rong Yan, Hai Zhan, Chao Zhu, Zhen Bo Zhu