Patents by Inventor Lichang WU
Lichang 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).
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Patent number: 10284455Abstract: A method, a terminal, and a system for a cluster terminal to feedback downlink channel information are provided. In the method, a cluster terminal in an idle state configures a group call context and measures a current downlink channel in a preset period, after receiving a group call signaling sent by a base station. The cluster terminal sends an RRC connection request carrying a measurement result to the base station after determining that the measurement result meets a preset report triggering condition. The base station modifies an air interface resource configuration when determining that a preset condition for modifying the air interface resource configuration is met according to the measurement result and sends an instruction carrying the modified air interface resource configuration to the cluster terminal. The cluster terminal receives group call data according to the instruction after receiving the instruction.Type: GrantFiled: June 15, 2015Date of Patent: May 7, 2019Assignee: Hytera Communications Corporation LimitedInventors: Qingxiang Yu, Lichang Wu, Jiping Li
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Publication number: 20180191598Abstract: A method, a terminal and a system for a cluster terminal to feedback downlink channel information are provided. In the method, a cluster terminal in an idle state configures a group call context and measures a current downlink channel in a preset period, after a group call signaling sent by a base station is received; sends a RRC connection request carrying a measurement result to the base station after determining that the measurement result meets a preset report triggering condition, where the base station modifies an air interface resource configuration when determining that a preset condition for modifying the air interface resource configuration is met according to the measurement result and sends an instruction carrying the modified air interface resource configuration to the cluster terminal; and receives group call data according to the instruction after the instruction is received.Type: ApplicationFiled: June 15, 2016Publication date: July 5, 2018Applicant: Hytera Communications Corporation LimitedInventors: Qingxiang Yu, Lichang Wu, Jiping Li
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Patent number: 9807717Abstract: Embodiments of the present invention provide a method, an apparatus, and a system for synchronization. The method includes the following steps executed by a first device: sending clock information acquiring request to a second device through an Antenna Interface Standards Group AISG interface; receiving a clock signal from the second device through the AISG interface; and performing synchronization according to clock information of the clock signal. The first device is a base station and the second device is an antenna line device, or the first device is an antenna line device and the second device is a base station.Type: GrantFiled: January 30, 2015Date of Patent: October 31, 2017Assignee: Huawei Technologies Co., Ltd.Inventors: Lichang Wu, Hu Zhao
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Patent number: 9735468Abstract: The embodiments of the present application disclose an antenna array control apparatus, method, and system. The apparatus includes a link establishing unit, multiple modems, and multiple AISG interfaces, and the AISG interfaces are configured to receive an antenna array configuration signal; the multiple modems are connected to the link establishing unit, and the modems are configured to decode the antenna array configuration signal to obtain an antenna array configuration instruction; and the link establishing unit is connected to multiple electric motors and configured to establish a communications link between each electric motor and one modem according to the antenna array configuration instruction. The multiple AISG interfaces are used in the apparatus as control ports, and a communications link between an antenna array and the multiple AISG interfaces can be connected in multiple manners, so that multiple antenna arrays are more flexibly controlled.Type: GrantFiled: January 25, 2016Date of Patent: August 15, 2017Assignee: Huawei Technologies Co., Ltd.Inventors: Xiangning Xu, Lichang Wu, Xiangyang Liu
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Publication number: 20160141752Abstract: The embodiments of the present application disclose an antenna array control apparatus, method, and system. The apparatus includes a link establishing unit, multiple modems, and multiple AISG interfaces, and the AISG interfaces are configured to receive an antenna array configuration signal; the multiple modems are connected to the link establishing unit, and the modems are configured to decode the antenna array configuration signal to obtain an antenna array configuration instruction; and the link establishing unit is connected to multiple electric motors and configured to establish a communications link between each electric motor and one modem according to the antenna array configuration instruction. The multiple AISG interfaces are used in the apparatus as control ports, and a communications link between an antenna array and the multiple AISG interfaces can be connected in multiple manners, so that multiple antenna arrays are more flexibly controlled.Type: ApplicationFiled: January 25, 2016Publication date: May 19, 2016Inventors: Xiangning XU, Lichang WU, Xiangyang LIU
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Patent number: 9215702Abstract: The present invention provides a method and an apparatus for processing data and a base station. The method includes: receiving first service data sent by a first radio frequency device, where the first service data are received by at least one receiving set of the first radio frequency device; receiving at least one second service data sent by at least one second radio frequency device, where the at least one second service data are respectively received by at least one receiving set corresponding to the at least one second radio frequency device; and transferring the first service data and the at least one second service data to a baseband processing device through a baseband processing device channel corresponding to the first radio frequency device. The solution according to embodiments of the present invention is capable of effectively using channel resources of a baseband processing device.Type: GrantFiled: January 11, 2013Date of Patent: December 15, 2015Assignee: Huawei Technologies Co., Ltd.Inventors: Zhitao Guo, Binlin Jiang, Lichang Wu, Aihua Hu
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Publication number: 20150139071Abstract: Embodiments of the present invention provide a method, an apparatus, and a system for synchronization. The method includes the following steps executed by a first device: sending clock information acquiring request to a second device through an Antenna Interface Standards Group AISG interface; receiving a clock signal from the second device through the AISG interface; and performing synchronization according to clock information of the clock signal. The first device is a base station and the second device is an antenna line device, or the first device is an antenna line device and the second device is a base station.Type: ApplicationFiled: January 30, 2015Publication date: May 21, 2015Inventors: Lichang Wu, Hu Zhao
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Patent number: 8766847Abstract: A method and an apparatus for acquiring information about a base station antenna, and the base station antenna. The apparatus includes at least two receiving antenna units that are configured to receive satellite signals sent by a satellite in a satellite positioning system. The receiving antenna units and the base station antenna accord with a preset position relationship. A processing unit is configured to obtain position information of the receiving antenna units according to the satellite signals and to obtain position information of the base station antenna according to the position information of the receiving antenna units and the preset position relationship between the receiving antenna units and the base station antenna.Type: GrantFiled: December 27, 2012Date of Patent: July 1, 2014Assignee: Huawei Technologies Co. Ltd.Inventors: Hu Zhao, Lichang Wu
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Publication number: 20120127873Abstract: A method, an apparatus, and a system for automatically switching services are provided. The method includes: determining whether a switching condition is satisfied; migrating a user equipment (UE) using a first service operated on a switchable frequency point to a frequency point operating the first service, when the switching condition is satisfied; and switching the first service operated on the switchable frequency point to a second service. It is determined that a switching condition is satisfied, a UE using a first service operated on a switchable frequency point is migrated to a frequency point operating the first service, so as to switch the first service operated on the switchable frequency point to a second service, thereby improving utilization of spectrum resources and increasing a service income.Type: ApplicationFiled: May 24, 2011Publication date: May 24, 2012Applicant: Huawei Technologies Co., Ltd.Inventors: Huabin Li, Jun Liu, Si Wu, Qing Lin, Sha Lv, Lichang Wu, Yalei Cui
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Publication number: 20110075637Abstract: The present invention provides a method and apparatus for processing a pseudo pilot signal. The method includes: transmitting a data service carrier signal on a first frequency in a first cell to a mobile station (MS); and transmitting a pseudo pilot signal corresponding to a voice service carrier signal on a first frequency in a second cell in at least one timeslot of the timeslots for transmitting the data service carrier signal.Type: ApplicationFiled: September 24, 2010Publication date: March 31, 2011Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Lichang WU, Bo Xie, Liqun Xiong