Patents by Inventor Linmei Mo

Linmei Mo 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: 9730175
    Abstract: The present document discloses a method and a system for determining a delay difference, and a base station and UE, the method includes: a serving cell receiving information of time measured by a neighboring cell at which uplink channel/signal information of UE for determining a synchronization delay is received; and the serving cell determining a synchronization delay difference between the UE to the serving cell and the UE to the neighboring cell according to information of time measured by the serving cell at which the uplink channel/signal information of the UE for determining the synchronization delay is received, and the information of time measured by the neighboring cell and at which the uplink channel/signal information of the UE for determining the synchronization delay is received, wherein the uplink channel/signal information measured by the serving cell is the same as the uplink channel/signal information measured by the neighboring cell.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: August 8, 2017
    Assignee: ZTE Corporation
    Inventors: Hanqing Xu, Yajun Zhao, Linmei Mo
  • Patent number: 9722745
    Abstract: A method and base station for coordinated multi point data transmission are disclosed. The method includes: a base station receiving a per-cell CQI value reported by a UE; looking up an SINR-CQI mapping table according to the per-cell CQI value, and acquiring a subband/broadband SINR value; performing CQI recalculation according to the subband/broadband SINR value, and acquiring a recalculated subband/broadband CQI value; and selecting modulation and coding according to the recalculated subband/broadband CQI value to schedule data transmission. With the method and base station of the embodiments of the present document, in a CoMP system, in a joint transmission scenario, the accuracy of the CQI value used by the BS for scheduling is improved, and the oscillation during an AMC process is reduced.
    Type: Grant
    Filed: August 14, 2013
    Date of Patent: August 1, 2017
    Assignee: ZTE Corporation
    Inventors: Linmei Mo, Yajun Zhao, Baoyu Sun, Chen Huang, Hanqing Xu, Yujie Li, Hongfeng Qin, Guofeng Chen, Hongfeng Yuan, Xin Zhang
  • Publication number: 20170195942
    Abstract: A processing method for a discovery signal and a base station, the method includes: a base station configuring a part of available resources, which are taken as a Discovery Signal DS resource, of a specified reference signal in a first scenario; and the base station transmitting a DS according to a DS resource configuration; the base station includes a configuration module and a transmission module.
    Type: Application
    Filed: September 17, 2014
    Publication date: July 6, 2017
    Inventors: Yajun ZHAO, Linmei MO, Hanqing XU
  • Publication number: 20170111130
    Abstract: A method, apparatus and user terminal for measuring with a discovery signal are disclosed in the present document. The method includes: when measuring reference signal receiving quality (RSRQ) based on a discovery signal, performing a received signal strength indication (RSSI) measurement in a sub-frame where a discovery signal is located and/or a sub-frame without the discovery signal; and acquiring the RSRQ according to the measured RSSI. With the present document, the RSSI measurement is performed based on the sub-frame where the discovery signal is located and/or the sub-frame without the discovery signal, which can reduce the measurement deviation caused by the situation that there is no data in a data channel after a cell is closed, and increase the RSRQ measurement accuracy.
    Type: Application
    Filed: August 8, 2014
    Publication date: April 20, 2017
    Inventors: Yajun ZHAO, Linmei MO, Hanqing XU
  • Patent number: 9590776
    Abstract: The embodiment of the present invention discloses a method, a system and an apparatus for calibrating deviation among multiple access points, which are used for solving a problem that information received by a user equipment (UE) is not synchronous, caused when different access points send data to the UE at the same time, and improving system performance and frequency spectrum efficiency. The method for calibrating deviation among multiple access points comprises the following steps: in step A: a base station sending to a UE a message instructing the UE to perform measurement and return deviation calibration information among the multiple access points (S101); and in step B: the base station calibrating the deviation among the multiple access points based on the deviation calibration information among the multiple access points returned by the UE (S102).
    Type: Grant
    Filed: April 10, 2013
    Date of Patent: March 7, 2017
    Assignee: ZTE Corporation
    Inventors: Yajun Zhao, Linmei Mo, Chen Huang, Hanqing Xu, Yujie Li, Baoyu Sun, Qian Wang, Yunfeng Sun
  • Publication number: 20170013671
    Abstract: The present invention relates to the field of wireless communications. Disclosed are a state switching method and device for a small cell base station and a computer storage medium. The method comprises: acquiring state switching information comprising a state switching mode and performing state switching on the small cell base station according to the state switching information.
    Type: Application
    Filed: June 23, 2014
    Publication date: January 12, 2017
    Inventors: Hanqing Xu, Yajun Zhao, Linmei Mo
  • Publication number: 20170006570
    Abstract: The present document discloses a method and a system for determining a delay difference, and a base station and UE, the method includes: a serving cell receiving information of time measured by a neighboring cell at which uplink channel/signal information of UE for determining a synchronization delay is received; and the serving cell determining a synchronization delay difference between the UE to the serving cell itself and the UE to the neighboring cell according to information of time which is measured by the serving cell at which the uplink channel/signal information of the UE for determining the synchronization delay is received, and the information of time measured by the neighboring cell and at which the uplink channel/signal information of the UE for determining the synchronization delay is received, wherein the uplink channel/signal information measured by the serving cell is the same as the uplink channel/signal information is measured by the neighboring cell.
    Type: Application
    Filed: June 18, 2016
    Publication date: January 5, 2017
    Inventors: Hanqing XU, Yajun ZHAO, Linmei MO
  • Patent number: 9537625
    Abstract: A method and a base station for calibrating data transmitted by coordinated APs are disclosed. The method includes: a base station obtaining an uplink channel frequency-domain response and a downlink channel frequency-domain response between a first AP and a second AP which participate in coordination; the base station dividing the uplink channel frequency-domain response by the downlink channel frequency-domain response to obtain an uplink and downlink channel response difference between the first AP and the second AP; and the base station calibrating the data transmitted by the first AP and the second AP in coordination according to the uplink and downlink channel response difference. The method and base station in the embodiments of the present document are applied to calibrate the data transmitted by coordinated APs.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: January 3, 2017
    Assignee: ZTE CORPORATION
    Inventors: Yajun Zhao, Linmei Mo, Hanqing Xu, Yujie Li, Baoyu Sun, Chen Huang
  • Patent number: 9515791
    Abstract: A method and device for multi-access point calibration are disclosed. The method includes: a base station estimating a value closest to a true parameter deviation in a value interval of an uplink and downlink channel parameter deviation between access points, wherein the parameter deviation includes a phase difference and an amplitude difference; and the base station performing phase and/or amplitude calibration on service data transmitted jointly by the access points according to the value. With the method and device provided in the present document, a cell calculates a parameter difference between different access points, and then calibrates multiple access points according to the parameter difference, so as to solve a problem that the phase difference and amplitude difference exist between the data transmitted jointly between the multiple access points, and thus it can be guaranteed that good coherent transmission is performed between the access points, thereby improving the system performance.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: December 6, 2016
    Assignee: ZTE Corporation
    Inventors: Yajun Zhao, Linmei Mo, Hanqing Xu, Jun Huang, Yujie Li, Baoyu Sun
  • Publication number: 20160262029
    Abstract: Disclosed in the embodiment of the present invention is a discovery signal processing method. The method comprises: a base station configuring part of available resources of a designated reference signal as DS (Discovery Signal) resources; the base station sending a DS according to the configuration, and a terminal measuring the DS according to the configuration. Also disclosed in the embodiment of the present invention is a base station, which at least comprises: a configuration module configured to configure the DS resources and including taking part of available resources of the designated reference signal as the DS resources; and a sending module configured to send the DS according to the configuration. Also disclosed in the embodiment of the present invention is a computer storage medium in which a computer-executable command for executing the discovery signal processing method is stored.
    Type: Application
    Filed: October 24, 2014
    Publication date: September 8, 2016
    Inventors: Yajun Zhao, Linmei Mo, Hanqing Xu
  • Publication number: 20160242020
    Abstract: A notification method and device for downlink power regulation and an acquisition method and device for downlink power regulation are described in the present disclosure. The notification method includes that: adaptive regulation is implemented by at least keeping power of a Discovery Signal (DS) unchanged or at least regulating the power of the DS, and a power parameter configured after adaptive regulation is notified to a terminal, and/or a neighbouring small cell and/or a macro cell.
    Type: Application
    Filed: June 19, 2014
    Publication date: August 18, 2016
    Inventors: Hanqing Xu, Yajun Zhao, Linmei Mo, Feng Xie
  • Publication number: 20160212647
    Abstract: A discovery signal measurement method, base station and terminal, wherein the method includes: a base station determining measurement patterns used by different terminals for measuring discovery signals according to transmission patterns of discovery signals; the base station configuring measurement patterns corresponding to the terminals for the terminals; the base station transmitting the discovery signals in cells corresponding to the transmission pattern according to the transmission patterns. The method, base station and terminal according to the embodiment of the present invention provide a definite solution for configuring measurement patterns of discovery signals.
    Type: Application
    Filed: June 19, 2014
    Publication date: July 21, 2016
    Inventors: Linmei MO, Yajun ZHAO, Hanqing XU, Yonghong GAO, Aijun CAO
  • Publication number: 20160119093
    Abstract: Disclosed is a method for sending a signal, comprising: a small cell sending a discovery signal (DS) in a corresponding sending mode according to a current state of the small cell. Further disclosed is a device for sending a signal. In the present invention, according to the current state of the small cell, an access state of the small cell is adjusted in real time, thereby significantly reducing the interference of the small cell to a neighbor cell, improving the system performance, and being able to reduce the energy consumption of the small cell.
    Type: Application
    Filed: May 12, 2014
    Publication date: April 28, 2016
    Inventors: Hanqing Xu, Yajun Zhao, Linmei Mo, Yonghong Gao, Aijun Cao
  • Publication number: 20160105853
    Abstract: A method and a base station for power control of a microcell are disclosed. The method includes that when a state change of a microcell is detected, transmitting power lower than a rated value in a normal active state is configured for the microcell.
    Type: Application
    Filed: May 14, 2014
    Publication date: April 14, 2016
    Inventors: Yajun Zhao, Hanqing Xu, Linmei Mo
  • Publication number: 20160028456
    Abstract: A method for guaranteeing channel phase continuity of pre-coded RB groups, a base station and a computer-readable storage medium are described. The method includes that: a base station implements a channel estimation through a Sounding Reference Signal (SRS) measurement to obtain an uplink channel and obtains a corresponding downlink channel based on reciprocity of uplink and downlink channels; the base station calculates a weight phase correction factor based on the obtained downlink channel and corrects a pre-coding weight with the weight phase correction factor; and the base station pre-codes data according to the corrected pre-coding weight and sends the pre-coded data.
    Type: Application
    Filed: December 25, 2013
    Publication date: January 28, 2016
    Inventors: Baoyu Sun, Yajun Zhao, Yujie Li, Xin Zhang, Linmei Mo, Hanqing Xu, Guofeng Chen, Chen Huang
  • Publication number: 20150381246
    Abstract: Disclosed are a multi-antenna transmission method, a terminal and a base station, wherein, an eNB sends a UE a SRS transmission mode including new SRS transmission port information and/or a signaling for instructing the UE to perform antenna group alternate transmission as well as a control signaling required by the SRS transmission mode; the UE transmits a SRS using the abovementioned SRS transmission mode, and the eNB estimates a channel information according to the SRS and calculates and transmits a precoding matrix.
    Type: Application
    Filed: August 14, 2013
    Publication date: December 31, 2015
    Inventors: Chen HUANG, Yajun ZHAO, Linmei MO, Hanqing XU, Baoyu SUN, Yujie LI, Hongfeng QIN, Guofeng CHEN, Hongfeng YUAN, Xin ZHANG
  • Publication number: 20150381328
    Abstract: A method and base station for coordinated multi point data transmission are disclosed. The method includes: a base station receiving a per-cell CQI value reported by a UE; looking up an SINR-CQI mapping table according to the per-cell CQI value, and acquiring a subband/broadband SINR value; performing CQI recalculation according to the subband/broadband SINR value, and acquiring a recalculated subband/broadband CQI value; and selecting modulation and coding according to the recalculated subband/broadband CQI value to schedule data transmission. With the method and base station of the embodiments of the present document, in a CoMP system, in a joint transmission scenario, the accuracy of the CQI value used by the BS for scheduling is improved, and the oscillation during an AMC process is reduced.
    Type: Application
    Filed: August 14, 2013
    Publication date: December 31, 2015
    Inventors: Linmei MO, Yajun ZHAO, Baoyu SUN, Chen HUANG, Hanqing XU, Yujie LI, Hongfeng QIN, Guofeng CHEN, Hongfeng YUAN, Xin ZHANG
  • Publication number: 20150358913
    Abstract: A method and apparatus for configuring downlink power parameters are disclosed. The method includes: a base station configuring downlink power parameters for both a primary cell and a coordinated cell of a terminal in a Coordinated Multi-Point (CoMP) set in which the terminal is located; and the base station notifying the terminal of the downlink power parameters.
    Type: Application
    Filed: August 30, 2013
    Publication date: December 10, 2015
    Applicant: ZTE Corporation
    Inventors: Hanqing Xu, Yajun Zhao, Linmei Mo, Chen Huang, Yujie Li, Baoyu Sun, Guofeng Chen, Hongfeng Qin
  • Publication number: 20150207597
    Abstract: A method and device for multi-access point calibration are disclosed. The method includes: a base station estimating a value closest to a true parameter deviation in a value interval of an uplink and downlink channel parameter deviation between access points, wherein the parameter deviation includes a phase difference and an amplitude difference; and the base station performing phase and/or amplitude calibration on service data transmitted jointly by the access points according to the value. With the method and device provided in the present document, a cell calculates a parameter difference between different access points, and then calibrates multiple access points according to the parameter difference, so as to solve a problem that the phase difference and amplitude difference exist between the data transmitted jointly between the multiple access points, and thus it can be guaranteed that good coherent transmission is performed between the access points, thereby improving the system performance.
    Type: Application
    Filed: June 28, 2013
    Publication date: July 23, 2015
    Inventors: Yajun Zhao, Linmei Mo, Hanqing Xu, Jun Huang, Yujie Li, Baoyu Sun
  • Publication number: 20150172014
    Abstract: A method and a base station for calibrating data transmitted by coordinated APs are disclosed. The method includes: a base station obtaining an uplink channel frequency-domain response and a downlink channel frequency-domain response between a first AP and a second AP which participate in coordination; the base station dividing the uplink channel frequency-domain response by the downlink channel frequency-domain response to obtain an uplink and downlink channel response difference between the first AP and the second AP; and the base station calibrating the data transmitted by the first AP and the second AP in coordination according to the uplink and downlink channel response difference. The method and base station in the embodiments of the present document are applied to calibrate the data transmitted by coordinated APs.
    Type: Application
    Filed: June 27, 2013
    Publication date: June 18, 2015
    Applicant: ZTE CORPORATION
    Inventors: Yajun Zhao, Linmei Mo, Hanqing Xu, Yujie Li, Baoyu Sun, Chen Huang