Patents by Inventor Guolin Sun
Guolin 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).
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Patent number: 11343719Abstract: A method for reserving and allocating resources for an ultra-low-latency uplink service flow based on an air interface slice includes: virtualizing an air interface resource of a base station side into an ultra-low-latency slice resource and a non-ultra-low-latency slice resource; recording a collision situation on reserved resources in each retry window, and dynamically adjusting a size of the reserved ultra-low-latency slice resource; after detecting that a terminal transmits ultra-low-latency data on the ultra-low-latency slice resource, performing a resource reallocation and determining whether an idle resource is presented; if presented, allocating the idle resource to the terminal transmitting the ultra-low-latency data and returning the borrowed non-ultra-low-latency slice resource after transmitting the ultra-low-latency data; and if not presented, borrowing the non-ultra-low-latency slice resource allocated to a non-ultra-low-latency terminal and returning the borrowed non-ultra-low-latency slice resType: GrantFiled: October 18, 2018Date of Patent: May 24, 2022Assignee: UNIVERSITY OF ELECTRONIC SCIENCE AND TECHNOLOGY OF CHINAInventors: Guolin Sun, Kun Xiong
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Publication number: 20210092648Abstract: A method for reserving and allocating resources for an ultra-low-latency uplink service flow based on an air interface slice includes: virtualizing an air interface resource of a base station side into an ultra-low-latency slice resource and a non-ultra-low-latency slice resource; recording a collision situation on reserved resources in each retry window, and dynamically adjusting a size of the reserved ultra-low-latency slice resource; after detecting that a terminal transmits ultra-low-latency data on the ultra-low-latency slice resource, performing a resource reallocation and determining whether an idle resource is presented; if presented, allocating the idle resource to the terminal transmitting the ultra-low-latency data and returning the borrowed non-ultra-low-latency slice resource after transmitting the ultra-low-latency data; and if not presented, borrowing the non-ultra-low-latency slice resource allocated to a non-ultra-low-latency terminal and returning the borrowed non-ultra-low-latency slice resType: ApplicationFiled: October 18, 2018Publication date: March 25, 2021Applicant: University of Electronic Science and Technology of ChinaInventors: Guolin SUN, Kun XIONG
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Patent number: 10341469Abstract: Embodiments of this application disclose a data transmission method and apparatus and a data receiving method and apparatus. The data transmission method comprises: responding to a data packet received from a first device, and sending a receiving acknowledgment to the first device; and sending the data packet to a second device, wherein the second device is a target device of the data packet.Type: GrantFiled: August 11, 2016Date of Patent: July 2, 2019Assignee: BEIJING ZHIGU TECH CO., LTD.Inventors: Kuifei Yu, Ran Xu, Guolin Sun, Li Lu, Hangming Zhang
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Publication number: 20170055247Abstract: Embodiments of this application disclose a data transmission method and apparatus and a data receiving method and apparatus. The data transmission method comprises: responding to a data packet received from a first device, and sending a receiving acknowledgment to the first device; and sending the data packet to a second device, wherein the second device is a target device of the data packet.Type: ApplicationFiled: August 11, 2016Publication date: February 23, 2017Inventors: Kuifei Yu, Ran Xu, Guolin Sun, Li Lu, Hangming Zhang
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Patent number: 9369244Abstract: The present invention discloses a method for reducing inter-Femtocell interference, including: obtaining an average channel gain of all available channels; determining whether the average channel gain is greater than a preset threshold; if the average channel gain is greater than the preset threshold, determining, by using spectrum sensing, a P channel and an N channel, where the P channel is one or more available channels causing greatest interference and the N channel is one or more available channels suffering greatest interference; and transmitting or receiving a signal in an available channel other than the P channel and the N channel.Type: GrantFiled: February 24, 2014Date of Patent: June 14, 2016Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Guolin Sun, Wei Jiang, Guodong Zhao
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Patent number: 9325390Abstract: The present invention provides a precoding method for use in a wireless communications system. According to the precoding method of the present invention, a serving base station and cooperative communication base stations employ an identical precoding matrix so as to weight transmission signals and then transmit them. The weighting stands for multiplication of results of overall precoding or each layer precoding process by weight values at the serving base station and the cooperative communication base stations. A user device corresponding to the serving base station and the cooperative communication base stations receives a signal which is obtained by an operation in which the serving base station and the cooperative communication base stations perform an identical precoding process and additively combine results of overall precoding or each layer precoding process with one another.Type: GrantFiled: November 4, 2009Date of Patent: April 26, 2016Assignee: SHARP KABUSHIKI KAISHAInventors: Ming Ding, Renmao Liu, Yingyu Zhang, Lei Huang, Chen Chen, Guolin Sun
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Patent number: 9191165Abstract: In a mobile communication system of the present invention, a base station apparatus and mobile station apparatus (user device) communicate each other on a plurality of downlink component carriers and a plurality of uplink component carriers. And while the mobile station apparatus (user device) transmit an uplink data to the base station apparatus on the plurality of uplink component carriers, the mobile station apparatus (user device) transmit a scheduling request for requesting uplink resource for the uplink data to the base station apparatus using a physical uplink control channel (PUCCH) only on a specific uplink component carrier of the plurality of uplink component carriers.Type: GrantFiled: August 11, 2009Date of Patent: November 17, 2015Assignee: SHARP KABUSHIKI KAISHAInventors: Chen Chen, Renmao Liu, Ming Ding, Lei Huang, Guolin Sun
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Patent number: 9031155Abstract: A method and an apparatus for sending signals to suppress outband interference effectively in a simple way includes: grouping subcarriers in a spectrum into edge subcarriers of the spectrum and non-edge subcarriers of the spectrum; precoding data to be sent to obtain modulated symbols of the data on the subcarriers, where the precoding makes every two adjacent edge subcarriers of the spectrum in the edge subcarriers of the spectrum carry a pair of modulated symbols with opposite polarities, and makes each of the non-edge subcarriers of the spectrum carry a modulated symbol with no polarity; and sending the modulated symbols of the data on the subcarriers. The embodiments of the present invention are applicable to a signal sending process.Type: GrantFiled: July 19, 2013Date of Patent: May 12, 2015Assignee: Huawei Technologies Co., Ltd.Inventors: Guolin Sun, Xiangwei Zhou, Wei Jiang
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Patent number: 8976749Abstract: A method and base station for dynamic adjustment of a carrier resource are disclosed. First, a cell-edge traffic volume of a local cell is detected; then, if the cell-edge traffic volume of the local cell is reduced, an idle primary subcarrier resource in the cell is released as a secondary subcarrier according to a degree of reduction of the cell-edge traffic volume and according to a multiple of a predetermined minimum granularity. With it, when the cell-edge traffic volume of the local cell is changed, the allocation of a primary subcarrier and a secondary subcarrier may be adjusted dynamically, which increases a utilization rate of a spectrum and ensures that carrier resources can be utilized properly and adequately.Type: GrantFiled: January 15, 2013Date of Patent: March 10, 2015Assignee: Huawei Technologies Co., Ltd.Inventors: Guolin Sun, Feng Ye, Yong Xie
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Publication number: 20140171095Abstract: The present invention discloses a method for reducing inter-Femtocell interference, including: obtaining an average channel gain of all available channels; determining whether the average channel gain is greater than a preset threshold; if the average channel gain is greater than the preset threshold, determining, by using spectrum sensing, a P channel and an N channel, where the P channel is one or more available channels causing greatest interference and the N channel is one or more available channels suffering greatest interference; and transmitting or receiving a signal in an available channel other than the P channel and the N channel.Type: ApplicationFiled: February 24, 2014Publication date: June 19, 2014Applicant: Huawei Technologies Co., Ltd.Inventors: Guolin Sun, Wei Jiang, Guodong Zhao
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Patent number: 8625705Abstract: A data modulation method, a data demodulation method, and a method, include obtaining a target frequency band allocated to a transmitting terminal; calculating a precoding codeword index of spectrum shaping according to a codebook corresponding to a current radio scene and the target frequency band, where the codeword index corresponds to a return-to-zero subcarrier sequence, and the return-to-zero subcarrier sequence serves to calculate a precoding vector for modulating data; and sending the precoding codeword index out through broadcast.Type: GrantFiled: January 15, 2013Date of Patent: January 7, 2014Assignee: Huawei Technologies Co., Ltd.Inventors: Guolin Sun, Jaap van de Beek
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Patent number: 8599810Abstract: A method, equipment and system for implementing coordinated multi-point transmission are provided for resolving the problem that there exists phase noise in the signals received by a User Equipment (UE) end in coordinated multi-point transmission. The method for implementing coordinated multi-point transmission includes: obtaining phase differences between the current service cell and other coordinated cells by calculating channel cross-covariance matrixes between the current service cell and other coordinated cells in a coordinated multi-point transmission system (101); feeding back the phase differences corresponding to the base stations of said other coordinated cells respectively to the base stations of said other coordinated cells, in order to implement phase compensation (102); receiving the signals transmitted after the phase compensation by base stations of all the coordinated cells (103).Type: GrantFiled: December 28, 2011Date of Patent: December 3, 2013Assignee: Huawei Technologies Co., Ltd.Inventors: Guolin Sun, Feng Ye, Xiujuan Gao
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Publication number: 20130308726Abstract: Embodiments of the present invention disclose a method and an apparatus for sending signals to suppress outband interference effectively in a simple way. The method of the present invention includes: grouping subcarriers in a spectrum into edge subcarriers of the spectrum and non-edge subcarriers of the spectrum; precoding data to be sent to obtain modulated symbols of the data on the subcarriers, where the precoding makes every two adjacent edge subcarriers of the spectrum in the edge subcarriers of the spectrum carry a pair of modulated symbols with opposite polarities, and makes each of the non-edge subcarriers of the spectrum carry a modulated symbol with no polarity; and sending the modulated symbols of the data on the subcarriers. The embodiments of the present invention are applicable to a signal sending process.Type: ApplicationFiled: July 19, 2013Publication date: November 21, 2013Applicant: Huawei Technologies Co., Ltd.Inventors: Guolin SUN, Xiangwei ZHOU, Wei JIANG
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Publication number: 20120093143Abstract: A method, equipment and system for implementing coordinated multi-point transmission are provided for resolving the problem that there exists phase noise in the signals received by a User Equipment (UE) end in coordinated multi-point transmission. The method for implementing coordinated multi-point transmission includes: obtaining phase differences between the current service cell and other coordinated cells by calculating channel cross-covariance matrixes between the current service cell and other coordinated cells in a coordinated multi-point transmission system (101); feeding back the phase differences corresponding to the base stations of said other coordinated cells respectively to the base stations of said other coordinated cells, in order to implement phase compensation (102); receiving the signals transmitted after the phase compensation by base stations of all the coordinated cells (103).Type: ApplicationFiled: December 28, 2011Publication date: April 19, 2012Inventors: Guolin Sun, Feng Ye, Xiujuan Gao
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Publication number: 20120015662Abstract: The present invention provides a relay collaborative cellular mobile communication system and a communication method of the system. In the method, all relay stations or a base station and relay stations in a cell (i) measure all uplink signals such as uplink reference signals and random-access signals from user devices for obtaining reception qualities of uplink signals of the user devices at the sites and (ii) feed back measurement results to the base station. The base station determines a transmission route of a user device based on the measurement results. A site in a transmission route processes schedule control information and then transmits the information to the user device for performing, based on lumped scheduling of the base station, a downlink reception, an uplink transmission, an uplink retransmission, or a downlink retransmission.Type: ApplicationFiled: February 2, 2010Publication date: January 19, 2012Inventors: Yingyu Zhang, Renmao Liu, Lei Huang, Ming Ding, Guolin Sun, Chen Chen
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Publication number: 20110274026Abstract: The present invention provides a method for allowing transparent transmission and non-transparent transmission of a relay node to coexist. That is, a frequency-division multiplex system is employed so that a transparent transmission mode is used in one operating carrier frequency bandwidth whereas a non-transparent transmission mode is used in another operating carrier frequency bandwidth. In addition, according to the frequency-division multiplex system, the transparent transmission mode is used for a plurality of subframes whereas the non-transparent transmission mode is used for another plurality of subframes. The method for allowing transparent transmission and non-transparent transmission of a relay node to coexist makes it possible to effectively reduce a cost of a system.Type: ApplicationFiled: December 28, 2009Publication date: November 10, 2011Inventors: Lei Huang, Renmao Liu, Yingyu Zhang, Ming Ding, Chen Chen, Guolin Sun
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Publication number: 20110206154Abstract: The present invention provides a precoding method for use in a wireless communications system. According to the precoding method of the present invention, a serving base station and cooperative communication base stations employ an identical precoding matrix so as to weight transmission signals and then transmit them. The weighting stands for multiplication of results of overall precoding or each layer precoding process by weight values at the serving base station and the cooperative communication base stations. A user device corresponding to the serving base station and the cooperative communication base stations receives a signal which is obtained by an operation in which the serving base station and the cooperative communication base stations perform an identical precoding process and additively combine results of overall precoding or each layer precoding process with one another.Type: ApplicationFiled: November 4, 2009Publication date: August 25, 2011Inventors: Ming Ding, Renmao Liu, Yingyu Zhang, Lei Huang, Chen Chen, Guolin Sun
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Publication number: 20110164549Abstract: This invention provides a mobile communication system, including: a base station device; and a mobile station device, the mobile communication system having a predetermined total bandwidth made of a set of a plurality of downlink component carriers, the base station device and the mobile station device processing each downlink physical layer provided for a respective one of the plurality of downlink component carriers, and the set of the plurality of downlink component carriers including (i) a downlink component carrier employing a subframe structure according to which some symbols at the beginning of a subframe include control information and (ii) a downlink component carrier employing a subframe structure according to which some symbols at the beginning of a subframe do not include control information.Type: ApplicationFiled: September 18, 2009Publication date: July 7, 2011Inventors: Lei Huang, Renmao Liu, Ming Ding, Chen Chen, Guolin Sun, Yingyu Zhang
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Publication number: 20110134875Abstract: A method for cooperative communications among base stations according to the present invention includes: a first step in which a serving base station determines whether a user device is in an mode of cooperative communications among the base stations; a second step in which the serving base station uses a downlink control signal to make configuration for the user device; a third step in which the user device obtains (i) system information regarding the serving base station and a cooperative communication base station indicated by configuration information received and (ii) channel state information; a fourth step in which the user device feeds back channel state information regarding downlink channels between the user device and the serving base station and between the user device and the cooperative communication base station; a fifth step in which the serving base station carries out resource scheduling and backhaul communications in accordance with the channel state information thus fed back; and a sixth sType: ApplicationFiled: August 10, 2009Publication date: June 9, 2011Inventors: Ming Ding, Renmao Liu, Lei Huang, Chen Chen, Guolin Sun
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Publication number: 20110136495Abstract: A base station (101) of the present invention includes a sending/receiving section (1010) for sending/receiving control signaling information and user data to/from a user device (102), the base station (101) and the user device (102) being wirelessly communicable with each other in a wireless cell (105) of the base station (101); a resource allocation section (1011) for (i) dividing a downlink system bandwidth of a communication system into a plurality of downlink basic bandwidths and (ii) carrying out allocation of resource blocks for uplink control signaling information; a sequence allocation section (1012) for carrying out allocation of a sequence(s) of a resource of the uplink control signaling information in each of an uplink basic bandwidth(s), on the basis of the number of downlink basic bandwidths allocated to the user device (102), so that the uplink control signaling information in each of the downlink basic bandwidth(s) allocated to the user device (102) is fed back to the base station; and a resouType: ApplicationFiled: August 11, 2009Publication date: June 9, 2011Inventors: Chen Chen, Renmao Liu, Ming Ding, Lei Huang, Guolin Sun