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).

  • Patent number: 9461780
    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: Grant
    Filed: April 8, 2013
    Date of Patent: October 4, 2016
    Assignee: ZTE Corporation
    Inventors: Chunli Liang, Bin Yu, Bo Dai, Weiwei Yang, Shuqiang Xia
  • Publication number: 20160277065
    Abstract: Disclosed are a method, system and device for determining an SRS frequency hopping pattern. The method includes: user equipment constructing a parent table which contains a plurality of child tables; determining an SRS frequency-domain reference position p according to NRBUL, CSRS, nRRC and bhop; calculating n?RRC according to NRBUL, CSRS and nRRC and selecting a child table from the parent table according to the n?RRC; according to the nSRS and the selected child table, taking n?SRS=(nSRS mod P)·S as an index to look up the table to obtain an SRS frequency hopping frequency-domain position offset q in each SRS frequency hopping period according to an SRS frequency hopping bandwidth parameter bhop and an SRS-bandwidth parameter BSRS distributed by an eNodeB; calculating r=p+q and calculating an SRS transmission frequency-domain subcarrier offset k0; repeating the processing for P times within one SRS frequency hopping period to obtain an SRS frequency hopping pattern.
    Type: Application
    Filed: May 13, 2014
    Publication date: September 22, 2016
    Inventors: Yining Xie, Chunli Liang
  • Publication number: 20160249337
    Abstract: A method for notifying uplink and downlink configuration information is provided, including: a base station transmits a DCI format to UE, the DCI format bearing uplink and downlink configuration information being for indicating uplink and downlink configuration; and the base station sends the DCI format through a PDCCH, and sends a search space of the PDCCH including a common search space and/or a UE group common search space. A method for acquiring uplink and downlink configuration information is provided, including: UE performs PDCCH blind detection in a search space candidate of a subframe candidate, and acquires a DCI format, wherein the subframe candidate is for transmitting a DCI format bearing uplink and downlink configuration information. A base station and UE are also provided.
    Type: Application
    Filed: May 23, 2014
    Publication date: August 25, 2016
    Inventors: Chunli Liang, Bo Dai, YuNgok Li, Shuqiang Xia
  • Publication number: 20160212762
    Abstract: Provided are a data sending method and device in spectrum aggregation. When downlink aggregation is performed on the plurality of cells of different types, the method includes that: HARQ information of the plurality of cells is centralized and sent on uplink subframes corresponding to a TDD cell among the plurality of cells, wherein the TDD cell is a primary cell while other cells are secondary cells and it is given that an uplink-downlink configuration of the primary cell is configuration X, where X?{0,1,2,3,4,5,6}, downlink subframes are configured on each FDD cell for a UE so that a network can send a PDCCH/a PDSCH for the UE only on the configured downlink subframes while the UE detects and receives the PDCCH/PDSCH on the configured downlink subframes.
    Type: Application
    Filed: June 17, 2014
    Publication date: July 21, 2016
    Applicant: ZTE Corporation
    Inventors: Shuqiang Xia, Bo Dai, Chunli Liang, Weiwei Yang
  • Publication number: 20160192331
    Abstract: Disclosed is a method for notifying uplink and downlink configuration information. The method includes: a base station sending to a user equipment (UE) a downlink control information format, wherein the downlink control information format carries uplink and downlink configuration information used for indicating an uplink and downlink configuration.
    Type: Application
    Filed: May 8, 2014
    Publication date: June 30, 2016
    Inventors: Chunli LIANG, Bo Dai, Shuqiang XIA, Peng HAO
  • Patent number: 9374809
    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: Grant
    Filed: December 21, 2011
    Date of Patent: June 21, 2016
    Assignee: ZTE Corporation
    Inventors: Bo Dai, Bin Yu, Peng Hao, Chunli Liang, Shuqiang Xia
  • Publication number: 20160174212
    Abstract: There is provided a method for sending uplink control information, comprising when a Frequency Division Duplex (FDD) serving cell and a Time Division Duplex (TDD) serving cell are aggregated, a user equipment (UE) sending the uplink control information in uplink subframes of the FDD serving cell and/or uplink subframes of the TDD serving cell according to a predefined rule.
    Type: Application
    Filed: May 22, 2014
    Publication date: June 16, 2016
    Applicant: ZTE CORPORATION
    Inventors: Weiwei YANG, Bo DAI, Chunli LIANG, Shuqiang XIA, Huiying FANG
  • Patent number: 9350575
    Abstract: The disclosure provides a method for transmitting uplink control signaling, which includes: respectively performing, on the uplink control signaling, channel coding, scrambling, modulation, time-domain spreading and precoding transform; or respectively performing, on the uplink control signaling, channel coding, scrambling, modulation, precoding transform and time-domain spreading; and mapping the uplink control signaling to an Orthogonal Frequency Division Multiplexing (OFDM) symbol used for bearing the uplink control signaling; and transmitting the uplink control signaling that is borne in the OFDM symbol. The disclosure also provides a method for bearing a demodulation reference signal during transmission of uplink control signaling, which includes: bearing the uplink demodulation reference signal in k OFDM symbols in a sub-frame. The disclosure also discloses apparatuses for respectively implementing the methods above.
    Type: Grant
    Filed: November 24, 2010
    Date of Patent: May 24, 2016
    Assignee: ZTE Corporation
    Inventors: Weiwei Yang, Chunli Liang, Bo Dai, Bin Yu, Peng Zhu
  • Publication number: 20160134458
    Abstract: Disclosed are a method for transferring control information, a transmitting device and a receiving device, the method includes that: a transmitting end orderly selects an element yn or two elements y2m-1, y2m, from a sequence Y to be modulated corresponding to control information B newly added, then it selects pairing elements x2p-1, x2p from a sequence X to be modulated corresponding to related control information A, and groups yn or y2m-1, y2m and the x2p-1, x2p into an element group (x2p-1, x2p, yn) or (x2p-1, x2p, y2m-1, y2m) and maps (x2p-1, x2p, yn) or (x2p-1, x2p, y2m-1, y2m) as specified constellation points of a specified constellation diagram, and takes the constellation points as modulation symbols; it takes each two elements in the elements of the sequence X which are not used for pairing as an element group to perform QPSK modulation, modulating into QPSK modulation symbols; and it maps the constellation points and the QPSK modulation symbols to part of or all resources occupied by a correspondin
    Type: Application
    Filed: February 24, 2014
    Publication date: May 12, 2016
    Inventors: Shuqiang XIA, Jing SHI, Jin XU, Jun XU, Peng HAO, Chunli LIANG, Bo DAI
  • Patent number: 9282570
    Abstract: The present invention discloses a method for transmitting uplink control signaling in a Physical Uplink Shared Channel (PUSCH). The method includes: when two transport blocks/codewords are transmitted in the PUSCH, mapping uplink control signaling to the layer corresponding to one of the two transport blocks/codewords to transmit. The present invention also discloses an apparatus for transmitting uplink control signaling in the PUSCH. The apparatus includes: a mapping unit, used for mapping uplink control signaling to the layer corresponding to one of two transport blocks/codewords when the two transport blocks/codewords are transmitted in the PUSCH; and a transmission unit, used for transmitting the uplink control signaling. The present invention effectively solves the problem of transmitting uplink control signaling in the PUSCH when the PUSCH uses spatial multiplexing in an LTE-A system.
    Type: Grant
    Filed: June 25, 2010
    Date of Patent: March 8, 2016
    Assignee: ZTE Corporation
    Inventors: Shuqiang Xia, Weiwei Yang, Chunli Liang, Bo Dai, Jun Xu
  • Patent number: 9282549
    Abstract: A method for transmitting feedback information and a user equipment are disclosed in the present document, wherein, one method includes: a User Equipment (UE) performing time domain extension on feedback information within one subframe; and mapping respectively data which go through the time domain extension and demodulation reference signals corresponding to the data which go through the time domain extension to multiple uplink Single Carrier-Frequency Division Multiple Access (SC-FDMA) symbols within the subframe, and transmitting the data which go through the time domain extension and the demodulation reference signals corresponding to the data which go through the time domain extension in the same frequency domain position in a way of time division multiplexing; wherein, each uplink SC-FDMA symbol occupies n successive physical resource blocks in the frequency domain, and n is a positive integer.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: March 8, 2016
    Assignee: ZTE Corporation
    Inventors: Bo Dai, Shuqiang Xia, Chunli Liang, Bin Yu
  • Patent number: 9277453
    Abstract: The disclosure discloses a method for transmitting a pilot, which includes the step of: selectively transmitting or not transmitting a demodulation pilot in a subframe according to a setting, in a control signaling, of triggering or not triggering a demodulation pilot transmission in the subframe. A system for transmitting the pilot is further disclosed, which includes a pilot selectively transmitting unit configured to selectively transmit or not transmit a demodulation pilot in a subframe according to a setting, in a control signaling, of triggering or not triggering a demodulation pilot transmission in the subframe. The method and system of the disclosure are capable of reducing the pilot overhead and improving the capacity of the LTE/LTE-Advanced system.
    Type: Grant
    Filed: August 1, 2011
    Date of Patent: March 1, 2016
    Assignee: ZTE Corporation
    Inventors: Zhirong Lin, Shuqiang Xia, Guanghui Yu, Chunli Liang, Bo Dai, Peng Hao
  • Patent number: 9247458
    Abstract: The disclosure discloses a method for transmitting a pilot, which includes the step of: selectively transmitting or not transmitting a demodulation pilot in a subframe according to a setting, in a control signaling, of triggering or not triggering a demodulation pilot transmission in the subframe. A system for transmitting the pilot is further disclosed, which includes a pilot selectively transmitting unit configured to selectively transmit or not transmit a demodulation pilot in a subframe according to a setting, in a control signaling, of triggering or not triggering a demodulation pilot transmission in the subframe. The method and system of the disclosure are capable of reducing the pilot overhead and improving the capacity of the LTE/LTE-Advanced system.
    Type: Grant
    Filed: August 1, 2011
    Date of Patent: January 26, 2016
    Assignee: ZTE Corporation
    Inventors: Zhirong Lin, Shuqiang Xia, Guanghui Yu, Chunli Liang, Bo Dai, Peng Hao
  • Patent number: 9220091
    Abstract: The disclosure discloses a method and terminal for transmitting uplink control information. The method includes: coding the uplink control information required to be transmitted and data information corresponding to one or two transport blocks respectively, obtaining an encoded sequence according to a target length, and forming a corresponding coded modulation sequence from the encoded sequence according to a modulation mode (401); interleaving the obtained coded modulation sequence, and transmitting the interleaved coded modulation sequence on a layer corresponding to a Physical Uplink Shared Channel (PUSCH) (402). By adopting the method and terminal according to the disclosure the transmission of uplink control information with greater bits on the PUSCH is realized.
    Type: Grant
    Filed: July 22, 2011
    Date of Patent: December 22, 2015
    Assignee: ZTE Corporation
    Inventors: Weiwei Yang, Bo Dai, Chunli Liang, Shuqiang Xia, Bin Yu
  • Patent number: 9215730
    Abstract: The present invention provides a method for transmitting a PDCCH (physical downlink control channel) signal, when the number of available resource blocks of the downlink bandwidth in a radio frame is less than or equal to k, 2 symbols are fixedly used to transmit the physical downlink control channel, wherein k is a natural number. The present invention further provides another method for transmitting a PDCCH signal. In a TDD Long Term Evolution system, when the number of available resource blocks of the downlink bandwidth in a radio frame is less than or equal to k and the uplink/downlink switching period is 10 ms, the transmitting end selects 2, 3 or 4 symbols to transmit the PDCCH signal in subframe 6. With the transmission method of the PDCCH signal provided in the present invention, the utilization efficiency of the system resources and the transmission performance of PDCCH can be improved.
    Type: Grant
    Filed: December 10, 2008
    Date of Patent: December 15, 2015
    Assignee: ZTE Corporation
    Inventors: Bo Dai, Peng Hao, Shuqiang Xia, Guanghui Yu, Chunli Liang
  • Patent number: 9204433
    Abstract: The present invention provides a method and system for processing an uplink control signaling feedback. The method comprises: a base station configuring a feedback mode of an uplink control signaling for user equipment, wherein the feedback mode is used for instructing the user equipment a manner in which to transmit the uplink control signaling on a physical uplink control channel (PUCCH) and/or a physical uplink shared channel (PUSCH); and the user equipment sending the uplink control signaling according to the feedback mode. By way of the present invention, it is ensured that the base station can correctly demodulate the uplink control signaling.
    Type: Grant
    Filed: January 7, 2011
    Date of Patent: December 1, 2015
    Assignee: ZTE Corporation
    Inventors: Chunli Liang, Bo Dai, Bin Yu, Weiwei Yang, Peng Zhu
  • Patent number: 9197343
    Abstract: A transmitting method of a signal on a random access channel in a wireless communication system is provided, including that a terminal transmits a preamble on the random access channel with a set time length ahead of the end position of an uplink pilot time slot, wherein the length of the preamble is the length of two symbols without a cyclic prefix. Another transmitting method of a signal on a random access channel in a wireless communication system is provided, including that a terminal transmits a cyclic prefix and a preamble on the random access channel with a set time length ahead of the end position of an uplink pilot time slot, wherein the length of the preamble is the length of two symbols without a cyclic prefix. The methods can avoid the interference of the preamble to the data of the uplink subframe, and can improve the coverage area of the random access channel and the work efficiency of the time division duplex system.
    Type: Grant
    Filed: March 17, 2013
    Date of Patent: November 24, 2015
    Assignee: ZTE Corporation
    Inventors: Peng Hao, Shuqiang Xia, Chunli Liang, Bo Dai, Bin Yu
  • Patent number: 9198136
    Abstract: The disclosure provides a physical uplink control channel (PUCCH) power control method. A user equipment (UE) determines a power control parameter nHARQ for a PUCCH format 3 transmission and performs power control on the PUCCH format 3 based on the nHARQ. The disclosure also provides a PUCCH power control apparatus. According to the disclosure, for a TDD system, the power control parameter nHARQ for the PUCCH format 3 transmission may be determined, which efficiently solves the problem regarding power control when feedback is performed in PUCCH format 3.
    Type: Grant
    Filed: January 10, 2012
    Date of Patent: November 24, 2015
    Assignee: ZTE CORPORATION
    Inventors: Weiwei Yang, Xin Wu, Bo Dai, Bin Yu, Chunli Liang
  • Patent number: 9191939
    Abstract: The present invention provides a method and a user UE for mapping ACK/NACK response messages. The method comprises the UE determining a number L of bits of ACK/NACK response messages according to predetermined conditions, wherein, the predetermined conditions include at least one of: a number of downlink component carriers or cells that are allocated to the UE by a base station, and a transmission mode of each of the downlink component carriers; and the UE mapping the ACK/NACK response messages to the L bits so as to handle them correctly.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: November 17, 2015
    Assignee: ZTE Corporation
    Inventors: Chunli Liang, Bo Dai, Weiwei Yang, Peng Zhu
  • Patent number: 9184881
    Abstract: A method for feeding back confirmation information on a physical uplink shared channel, this method includes: an eNodeB carries, in downlink control information, a number value of the downlink sub-frame corresponding to the confirmation information which is fed back by one uplink sub-frame, and transmits data on a plurality of continuous downlink sub-frames after the sub-frame carrying the downlink control information, wherein the number of the downlink sub-frames which transmit the data is equal to an number of the downlink sub-frames corresponding to the confirmation information fed back by the one uplink sub-frame; after the user equipment receives the downlink sub-frame which carries the downlink control information, the data is received from the downlink sub-frame which transmits the data after this downlink sub-frame, and the confirmation information received is fed back to the eNodeB through a physical uplink shared channel through an uplink sub-frame.
    Type: Grant
    Filed: October 15, 2010
    Date of Patent: November 10, 2015
    Assignee: ZTE CORPORATION
    Inventors: Bo Dai, Guanghui Yu, Shuqiang Xia, Peng Hao, Chunli Liang