Patents by Inventor Chunli Liang

Chunli Liang 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).

  • Publication number: 20150305016
    Abstract: The present invention provides a method and user equipment for transmitting a physical uplink control channel. The method includes: in a carrier aggregation scenario, based on a predetermined rule, the transmission of the Physical Uplink Control Channel (PUCCH) is switched between a secondary component carrier and a primary component carrier, or the transmission of the PUCCH is only in the primary component carrier, which is selected by the user equipment (UE); and the UE transmitting the PUCCH in the selected component carrier. The present invention reduces the feedback time delay of uplink control information, and improves the utilization of uplink resources.
    Type: Application
    Filed: December 21, 2011
    Publication date: October 22, 2015
    Applicant: ZTE CORPORATION
    Inventors: Bo Dai, Bin Yu, Peng Hao, Chunli Liang, Shuqiang Xia
  • Publication number: 20150295681
    Abstract: Disclosed are a method and device for sending answer information, wherein, when a frequency division duplex (FDD) and a time division duplex (TDD) aggregate, where a TDD cell serves as a primary serving cell and a FDD cell works as a secondary serving cell, a user equipment (UE) groups downlink subframes of the FDD secondary serving cell, and different downlink subframe groups use different hybrid automatic repeat request (HARQ) timing relationships, determines uplink subframes where HARQ-ACK acknowledgment messages corresponding to physical downlink shared channels (PDSCHs) of the downlink subframe groups are transmitted, and sends the HARQ-ACK messages on the determined uplink subframes.
    Type: Application
    Filed: October 14, 2013
    Publication date: October 15, 2015
    Inventors: Chunli Liang, Bo Dai, Shuqiang Xia, Weiwei Yang, Bin Yu
  • Patent number: 9143297
    Abstract: The present disclosure discloses a method and a device for transmitting data. The method includes: a UE determining, according to a preset rule, whether to transmit PUCCH and/or PUSCH and/or an SRS or not on a last symbol of a current subframe; the UE determining the PUCCH and/or the PUSCH to be transmitted on the current subframe according to availability of the last symbol of the current subframe for transmitting the PUCCH and/or the PUSCH; and the UE transmitting the PUCCH and/or the PUSCH on the current subframe and/or transmitting the SRS on the last symbol of the current subframe. In virtue of the present disclosure, it can be realized that a plurality of types of physical uplink signals/channels are simultaneously transmitted.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: September 22, 2015
    Assignee: ZTE Corporation
    Inventors: Chunli Liang, Bo Dai, Bin Yu, Weiwei Yang, Yuqiang Zhang
  • Patent number: 9130718
    Abstract: A method for sending physical downlink control channel (PDCCH) signals in downlink pilot time slots (DwPTS) comprises: a base station (BS) transmits the PDCCH signals on one or more symbols in the DwPTS, and resources used for transmitting the PDCCH signals are different from resources used for transmitting primary synchronization signals of synchronization signals. In the present invention, the method for sending the PDCCH signals can solve the problem of conflict between the PDCCH and the primary synchronization signals in the DwPTS by generating a less delay and less impact on other channels.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: September 8, 2015
    Assignee: ZTE Corporation
    Inventors: Bo Dai, Shuqiang Xia, Peng Hao, Chunli Liang
  • Publication number: 20150223230
    Abstract: Disclosed are a method and an device for processing information. In the method, a UE receives a higher-layer signaling from a base station, wherein the higher-layer signaling carries uplink channel resources configured by the base station for the UE, and the uplink channel resources are used for simultaneously transmitting periodic channel state information P-CSI of a plurality of serving cells corresponding to the UE, or are used for simultaneously transmitting hybrid automatic repeat request acknowledgments HARQ-ACKs of the plurality of serving cells corresponding to the UE and the P-CSI of the plurality of serving cells; and the UE simultaneously transmits the P-CSI of the plurality of serving cells on the uplink channel resources according to the higher-layer signaling in a preset uplink sub-frame, or simultaneously transmits the HARQ-ACKs of the plurality of serving cells and the P-CSI of the plurality of serving cells.
    Type: Application
    Filed: July 31, 2013
    Publication date: August 6, 2015
    Inventors: Chunli Liang, Bo Dai, Shuqiang Xia
  • Patent number: 9083400
    Abstract: The disclosure discloses a multi-antenna signal processing method in an uplink system. The method includes that: after scrambling, modulation, layer mapping, pre-coding, transmission pre-coding, resource mapping and Single Carrier Frequency Division Multiple Access (SC-FDMA) signal generation are performed successively on a coded bit sequence corresponding to each codeword, a resulted signal is transmitted from each transmitting antenna port. The disclosure also provides a multi-antenna signal processing device in an uplink system. With the method and the device according to the disclosure, a lower Peak-to-Average Power Ratio (PAPR) or Cubic Metric (CM) of a signal to be sent can be ensured without imposing any constraint on a pre-coding matrix, thus reducing the cost and power consumption of a terminal whiling increasing transmission performance of the system.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: July 14, 2015
    Assignee: ZTE CORPORATION
    Inventors: Chunli Liang, Shuqiang Xia, Weiwei Yang, Yuxin Wang, Peng Hao
  • Patent number: 9066336
    Abstract: A method and system for determining physical uplink control channel resources are disclosed in the present document, a terminal determines a frequency domain resource, namely a location of a physical uplink control channel format 3 in total physical uplink control channel areas, used when the physical uplink control channel format 3 is sent according to parameters configured by a base station, and the location is determined according to a set location relationship. One location relationship is: from a bandwidth edge to a bandwidth center, the total physical uplink control channel areas including in turn a physical uplink control channel format 3 area, a physical uplink control channel format 2/2a/2b area, a hybrid resource block and a physical uplink control channel format 1/1a/1b area. In the present document, a feasible scheme is provided for determining resources of the physical uplink control channel format 3, which improves the system performance.
    Type: Grant
    Filed: January 20, 2011
    Date of Patent: June 23, 2015
    Assignee: ZTE CORPORATION
    Inventors: Chunli Liang, Bo Dai, Peng Hao, Weiwei Yang, Peng Zhu
  • Patent number: 9060304
    Abstract: A radio frame and method are provided for sending a sounding reference signal (SRS) in a mobile communication system, which is used to solve the problem of shortage of resources for sending the SRS in the mobile communication system. The method includes a user equipment (UE) sending the SRS to eNB in time-frequency resources corresponding to a guard space in the radio frame, wherein, the guard space is one or more of downlink to uplink guard space, uplink to downlink guard space, reserved subframes, or reserved idle resources. A device is also provided for sending the SRS, applied to the UE in the mobile communication system, wherein the device includes a radio frame construction module and a sounding reference signal transmission module.
    Type: Grant
    Filed: December 29, 2010
    Date of Patent: June 16, 2015
    Assignee: ZTE Corporation
    Inventors: Bo Dai, Peng Hao, Yuxin Wang, Chunli Liang, Bin Yu
  • Publication number: 20150117271
    Abstract: A method and apparatus for transmitting HARQ-ACK information are provided. The method includes: in a CA TDD system, when uplink-downlink configurations of aggregated serving cells are different, and a mode of PUCCH format 1b with channel selection is configured to be used to feed back the HARQ-ACK, determining, according to a timing relationship between the PDSCH and the HARQ-ACK information complied by a secondary serving cell, a set of downlink subframes of aggregated serving cells in a feedback window corresponding to an uplink subframe; and determining, according to the relationship between the sets of downlink subframes of the aggregated serving cells in a feedback window corresponding to uplink subframe, the transmission mode of the HARQ-ACK information of the serving cells and the used PUCCH resources when transmitting the HARQ-ACK information; and on the determined PUCCH resources, transmitting the HARQ-ACK information by using the determined transmission mode of the HARQ-ACK information.
    Type: Application
    Filed: April 8, 2013
    Publication date: April 30, 2015
    Inventors: Chunli Liang, Bin Yu, Bo Dai, Weiwei Yang, Shuqiang Xia
  • Patent number: 9001707
    Abstract: A signal transmission method in a Time Division Duplex (TDD) system is disclosed. The method comprises following steps: within a time length of a half-frame of a radio frame, base station transmits signal on a downlink special time slot, thereafter does not transmit signal on a Guard Period (GP), and then receives signal on an uplink special time slot; all time lengths of other uplink or downlink normal time slots for transmitting signal are equal; the total time length of the downlink special time slot, the guard period and the uplink special time slot is integer times of the time length of an uplink or downlink normal time slot. In addition, a frame structure adopted in the TDD system which corresponds to the method is disclosed.
    Type: Grant
    Filed: October 23, 2008
    Date of Patent: April 7, 2015
    Assignee: ZTE Corporation
    Inventors: Bo Dai, Shuqiang Xia, Peng Hao, Chunli Liang, Guanghui Yu, Liujun Hu, Bin Yu
  • Publication number: 20150085714
    Abstract: The disclosure discloses a method for sending a Hybrid Automatic Repeat Request Acknowledgement (HARQ-ACK) message in a Time Division Duplex (TDD) system and a User Equipment (UE), in order that the UE feeds back the HARQ-ACK message of each downlink serving cell and downlink subframe in Physical Uplink Control Channel (PUCCH) format 1b with channel selection in the TDD system. When there are more than 1 downlink subframes in a downlink subframe window corresponding to an uplink subframe, the feedback mode when the UE feeds back the HARQ-ACK message in format 1b with channel selection is determined through the configuration of the high layer or according to the result about whether the UE receives the Physical Downlink Shared Channel (PDSCH) from a secondary downlink serving cell.
    Type: Application
    Filed: July 21, 2011
    Publication date: March 26, 2015
    Applicant: ZTE CORPORATION
    Inventors: Chunli Liang, Bo Dai, Weiwei Yang, Lu Ren
  • Publication number: 20140369290
    Abstract: Provided are a method and apparatus for sending Hybrid Automatic Repeat Request Acknowledge (HARQ-ACK) information. The method includes: when a terminal employs a physical uplink control channel (PUCCH) format 3 to transmit HARQ-ACK information and the HARQ-ACK information is transmitted over a uplink physical shared channel (PUSCH), determining the number of downlink subframes for serving cells to feed back the HARQ-ACK information; determining the number of encoded modulated symbols required for sending the HARQ-ACK information according to the determined number of downlink subframes; and mapping the HARQ-ACK information to be sent to the PUSCH of a specified uplink subframe according to the number of encoded modulated symbols and sending the HARQ-ACK information. The technical solutions provided by the disclosure are applied to improve the performance of the HARQ-ACK information, and thus improve the data performance.
    Type: Application
    Filed: March 9, 2012
    Publication date: December 18, 2014
    Inventors: Weiwei Yang, Bo Dai, Chunli Liang, Bin Yu, Shuqiang Xia
  • Patent number: 8913673
    Abstract: The present invention discloses a method and apparatus for transmitting rank indication information, in which the method comprises: when rank indication information and a sounding reference signal are transmitted in a same sub-frame, loading the sounding reference signal to a last symbol of a sub-frame, and transmitting the rank indication information and the sounding reference signal. The present invention prevents destruction of orthogonality of codes between PUCCH channels when the rank indication information and the sounding reference signal are transmitted in the same sub-frame, thus the overall performance of the system can be ensured.
    Type: Grant
    Filed: July 3, 2009
    Date of Patent: December 16, 2014
    Assignee: ZTE Corporation
    Inventors: Bo Dai, Shuqiang Xia, Chunli Liang, Peng Hao, Guanghui Yu
  • Publication number: 20140362746
    Abstract: Disclosed are a method and device for sending hybrid automatic repeat request acknowledge information. The method includes: in a TDD system, configuring a terminal to employ a PUCCH format 1b with channel selection method to send HARQ-ACK information; bundling the HARQ-ACK information of downlink subframes of serving cells in a bundling window corresponding to a specified uplink subframe to obtain HARQ-ACK information to be sent by the serving cells; and sending the HARQ-ACK information over an uplink subframe via the PUCCH or PUSCH. By way of bundling the HARQ-ACK information of downlink subframes of serving cells in a bundling window corresponding to a specified uplink subframe, the disclosure can realize sending the HARQ-ACK information when serving cells with different uplink and downlink configurations are aggregated.
    Type: Application
    Filed: March 9, 2012
    Publication date: December 11, 2014
    Inventors: Weiwei Yang, Bo Dai, Bin Yu, Chunli Liang, Shuqiang Xia
  • Publication number: 20140314034
    Abstract: The disclosure discloses a method and device for transmitting uplink control information. The method includes that: uplink control information to be transmitted is determined on the basis of high layer signalling and/or a predefined rule, and the determined uplink control information is transmitted on a Physical Uplink Control Channel (PUCCH). The device for transmitting uplink control information includes: a determining unit configured to determine, on the basis of high layer signalling and/or a predefined rule, uplink control information to be transmitted; and a transmitting unit configured to transmit, on the PUCCH, the determined uplink control information. The disclosure can ensure the maximum system throughput, and can also reduce the feedback delay of downlink channel information.
    Type: Application
    Filed: December 22, 2011
    Publication date: October 23, 2014
    Applicant: ZTE CORPORATION
    Inventors: Weiwei Yang, Bo Dai, Shuqiang Xia, Chunli Liang
  • Patent number: 8861455
    Abstract: The disclosure provides a method and system for signaling configuration of a Physical Uplink Shared Channel (PUSCH), the system comprises a base station and a target User Equipment (UE). The method comprises: a base station sends Downlink Control Information (DCI) to the target user equipment through a Physical Downlink Control Channel (PUCCH); and the downlink control information includes orthogonal cover code information and/or cyclic shift information for scheduling the physical uplink shared channel in the multi-antenna port transmission and/or single antenna port transmission. It is very adaptable and flexible to use the combination of multiple kinds of information to indicate the orthogonal cover code information in the downlink control information. The UE can obtain the orthogonal cover code information accurately, and the reliability of services can be improved.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: October 14, 2014
    Assignee: ZTE Corporation
    Inventors: Yuxin Wang, Peng Hao, Bo Dai, Chunli Liang, Bin Yu, Peng Zhu
  • Patent number: 8811324
    Abstract: A power control method for a Physical Uplink Control Channel, which includes: when the response information of multiple Physical Downlink Shared Channels (PDSCH) sent by a base station over multiple component carriers is sent on one Physical Uplink Control Channel (PUCCH), the base station indicating a unified transmitted power control command for the Physical Uplink Control Channel; or the base station indicating multiple transmitted power control commands for the Physical Uplink Control Channel. The present invention also provides a base station and a user equipment.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: August 19, 2014
    Assignee: ZTE Corporation
    Inventors: Peng Zhu, Peng Hao, Chunli Liang, Bin Yu, Weiwei Yang
  • Patent number: 8787224
    Abstract: The present invention discloses a method and system for feeding back an acknowledgement/negative-acknowledgement response message on a physical uplink control channel. The method includes: sending, by a user equipment, an acknowledgement/negative-acknowledgement response message by adopting a manner based on a channel selection or based on a DFT-s-OFDM in a multiplexing mode according to a feedback manner or a feedback rule in the multiplexing mode configured by a base station. In the present invention, the base station can configure for the user equipment and directly indicate to the user equipment through the higher layer signaling the feedback manner in the multiplexing mode, and can also configure the feedback rule in the multiplexing mode for the user equipment; and the user equipment determines the feedback manner in the multiplexing mode according to the feedback manner or feedback rule configured by the base station.
    Type: Grant
    Filed: February 11, 2011
    Date of Patent: July 22, 2014
    Assignee: ZTE Corporation
    Inventors: Chunli Liang, Bo Dai, Peng Hao, Yuqiang Zhang
  • Patent number: 8743899
    Abstract: A method for sending a physical broadcast channel in the TDD system is disclosed, which is: a signal of a physical broadcast channel is not sent in a pilot position, and the signal of the physical broadcast channel is sent on 4 OFDM symbols of the first subframe of one radio frame. Through the present invention, the extension requirement of the physical broadcast channel capacity in the TDD can be met, and the system complexity is reduced due to the normal cyclic prefix and extended prefix using the same sending method.
    Type: Grant
    Filed: October 17, 2008
    Date of Patent: June 3, 2014
    Assignee: ZTE Corporation
    Inventors: Bo Dai, Shuqiang Xia, Chunli Liang, Peng Hao, Guanghui Yu, Liujun Hu, Bin Yu
  • Publication number: 20140140430
    Abstract: The disclosure discloses a multi-antenna signal processing method in an uplink system. The method includes that: after scrambling, modulation, layer mapping, pre-coding, transmission pre-coding, resource mapping and Single Carrier Frequency Division Multiple Access (SC-FDMA) signal generation are performed successively on a coded bit sequence corresponding to each codeword, a resulted signal is transmitted from each transmitting antenna port. The disclosure also provides a multi-antenna signal processing device in an uplink system. With the method and the device according to the disclosure, a lower Peak-to-Average Power Ratio (PAPR) or Cubic Metric (CM) of a signal to be sent can be ensured without imposing any constraint on a pre-coding matrix, thus reducing the cost and power consumption of a terminal whiling increasing transmission performance of the system.
    Type: Application
    Filed: December 28, 2011
    Publication date: May 22, 2014
    Applicant: ZTE CORPORATION
    Inventors: Chunli Liang, Shuqiang Xia, Weiwei Yang, Yuxin Wang, Peng Hao