Patents by Inventor Ruiqi Zhang

Ruiqi Zhang 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: 20210336677
    Abstract: Embodiments of the present invention disclose a communication method and a device. Configuration information indicating one or more spatial domain beam basis vector groups and Q thresholds is received from a network device, where the Q thresholds correspond one-to-one to spatial domain beam basis vectors in the one or more spatial domain beam basis vector groups. L spatial domain beam basis vectors are selected from a spatial domain beam basis vector group set. K frequency domain basis vectors are selected from a frequency domain basis vector set for each of the L spatial domain beam basis vectors.
    Type: Application
    Filed: July 9, 2021
    Publication date: October 28, 2021
    Inventors: Xiang GAO, Kunpeng LIU, Ruiqi ZHANG
  • Patent number: 11153055
    Abstract: One example method for measuring a channel state information reference signal includes receiving, from a network device, a partial channel state information reference signal resource sets selected from a plurality of channel state information reference signal resource sets and indication information indicating one or more resource sets for channel measurement, which are from the partial channel state information reference signal resource sets, and performing channel measurement by using the one of the one or more resource sets for channel measurement indicated by the indication information.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: October 19, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Wei Han, Jinyao Liang, Ruiqi Zhang, Ting Wang, Huangping Jin, Shengyue Dou, Yuanjie Li
  • Patent number: 11139936
    Abstract: This application provides a data transmission method, terminal device, and network device. The method includes: sending, by a terminal device, at least one precoded reference signal on at least one reference signal resource corresponding to a first PRG, where different precoding matrixes are used for different reference signals, and the first PRG is a PRG used to transmit a reference signal; receiving, by the terminal device, resource indication information, where the resource indication information indicates a reference signal resource that is corresponding to a second PRG and that is in the at least one reference signal resource, and the second PRG is a PRG used to transmit a physical uplink shared channel (PUSCH); and sending, by the terminal device, a precoded PUSCH on the second PRG based on the resource indication information, where a precoding matrix used for the PUSCH is a precoding matrix used for a reference signal sent on the reference signal resource corresponding to the second PRG.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: October 5, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Xianda Liu, Kunpeng Liu, Ruiqi Zhang, Xueru Li
  • Publication number: 20210306184
    Abstract: Embodiments of this application provide an SRS sending method, an SRS receiving method, and a device. A manner of determining an antenna used to send an SRS is provided. In addition, a case in which one subframe includes a plurality of symbols is considered by using a quantity of first time units that are used by a terminal device to send an SRS in one uplink subframe and a case in which one antenna is enabled to implement continuous sending as much as possible is also considered by using a quantity of first time units that are consecutively used to send the SRS in one subframe by using a same antenna.
    Type: Application
    Filed: June 7, 2021
    Publication date: September 30, 2021
    Inventor: Ruiqi ZHANG
  • Patent number: 11101941
    Abstract: The present disclosure relates to reference symbol indication methods, devices, and systems. One example method includes receiving, by a user equipment, a target parameter including a target reference symbol indication sent by a base station, determining a target transmission mode and target reference symbol information based on the target parameter and a preset reference symbol mapping relationship, generating a target reference symbol based on the target reference symbol information, and demodulating data based on the target reference symbol and the target transmission mode, where the preset reference symbol mapping relationship includes a mapping relationship among a reference symbol indication, reference symbol information, and a transmission mode.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: August 24, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Ruiqi Zhang, Jianqin Liu
  • Patent number: 11082108
    Abstract: This application provides a channel state information transmission method, an access network device, and a terminal device. The method includes: receiving, by an access network device, CSI reported by a terminal device, where the CSI includes a first PMI and a second PMI; and determining, by the access network device based on the first PMI and the second PMI, a precoding matrix W whose rank is greater than or equal to 2, where W meets W=W1×W2, and the second PMI is used to indicate some column vectors in W2. According to the method in the embodiment, overheads of feeding back the CSI by the terminal device are effectively reduced.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: August 3, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Di Zhang, Ruiqi Zhang
  • Publication number: 20210234584
    Abstract: This application discloses a precoding matrix index (PMI) reporting method, and related communications apparatus and medium. The method includes: determining an rank indicator (RI) and a PMI, where the PMI is used to determine R precoding matrices W1, . . . , WR. An rth precoding matrix Wr in the R precoding matrices satisfies Wr=W1×W2,r, where an lth row of W2,r is obtained by performing DFT transform on an lth row of a matrix V2,r, and R is indicated by the RI. The PMI includes first indication information and second indication information. The first indication information includes location index information. The location index information is used to indicate Km,r element locations tr,m,1, . . . , ?{1, . . . , T} on an mth row of V2,r. The second indication information is used to indicate Km,r complex coefficients at the element locations tr,m,1, . . . , on the mth row of V2,r. V2,r is determined based on the Km,r element locations and the Km,r complex coefficients.
    Type: Application
    Filed: January 22, 2021
    Publication date: July 29, 2021
    Inventors: Xueru LI, Ruiqi ZHANG
  • Publication number: 20210218443
    Abstract: Embodiments of this application provide a precoding matrix indication method, a communications apparatus, and a storage medium. A precoding matrix of each of K frequency-domain units satisfies W=W1×W2, and elements in W2 in the K frequency-domain units are represented by P elements that are relatively few. A terminal device reports third indication information, where the third indication information includes first indication information and the second indication information, and the first indication information and the second indication information are independently encoded. The first indication information is used to indicate the P elements, and the second indication information is used to indicate P. Therefore, the terminal device can adjust a quantity of information bits of the second indication information based on a channel condition change, thereby improving precoding matrix reporting efficiency.
    Type: Application
    Filed: March 26, 2021
    Publication date: July 15, 2021
    Inventors: Ruiqi ZHANG, Xueru LI
  • Patent number: 11057085
    Abstract: A bit field indication manner is provided. A first field is determined, where the first field includes T1 bits, at least one of the T1 bits indicates at least two elements {bi0, bi1, . . . , bik} in a set B, the at least one bit further indicates at least one element {?j0, ?j1, . . . , ?jh} in a set ?, and at least one element in {bi0, bi1, . . . , bik} and at least one element in {?j0, ?j1, . . . , ?jh} are used to form a preceding matrix, where the set B={b0, b1, L, bT2?1}, an element in the set B is a vector with a length of N/4, the set ?={?0, ?1, . . . , ?S?1}, an element in ? is a complex number of a unit amplitude.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: July 6, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Xueru Li, Ruiqi Zhang
  • Patent number: 11032728
    Abstract: The present disclosure describes information reporting methods and related apparatuses used to control channel state information reporting between network devices. One example method includes receiving, by a second network device, control information sent by a first network device. The control information can include a trigger signal and a channel state information type, and the trigger signal can be used to trigger the second network device to report target channel state information to the first network device. The second network device determines the target channel state information based on the channel state information type, and then reports the target channel state information to the first network device based on the trigger signal and the channel state information type.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: June 8, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Ruiqi Zhang, Jianqin Liu
  • Publication number: 20210167829
    Abstract: This application provides a channel state information reporting method and apparatus. The method includes: A terminal device receives M pieces of downlink control information, where first downlink control information in the M pieces of downlink control information indicates a first channel state information configuration, the first channel state information configuration is associated with a first channel state information interference measurement CSI-IM resource group, and the first CSI-IM resource group includes N1 CSI-IM resources, where M and N1 are positive integers, and N1 is greater than 1; and the terminal device measures a target CSI-IM resource, and reports channel state information, where the target CSI-IM resource is determined by the terminal device from the N1 CSI-IM resources based on M, and a quantity of target CSI-IM resources is less than N1.
    Type: Application
    Filed: February 9, 2021
    Publication date: June 3, 2021
    Inventors: Xueru LI, Ruiqi ZHANG, Kunpeng LIU, Xianda LIU, Yongxing ZHOU
  • Publication number: 20210135726
    Abstract: A channel state information reporting method and apparatus are described. The method can include a terminal device obtaining first indication information and sending the first indication information to a network device. The network device receives the first indication information, where the first indication information indicates a differential value between channel state information of a first antenna port set and channel state information of a second antenna port set. The first antenna port set includes x antenna ports of the terminal device, the second antenna port set includes m antenna ports of the terminal device, and the first antenna port set is different from the second antenna port set. The channel state information reporting method and apparatus in embodiments of this application help improve accuracy of channel state information obtained by a network device, and improve data transmission performance.
    Type: Application
    Filed: January 8, 2021
    Publication date: May 6, 2021
    Inventors: Xueru LI, Ruiqi ZHANG
  • Patent number: 10979171
    Abstract: Embodiments provide a data transmission method, a network device, and a terminal device. For achieving this, indication signaling indicating data transmission of one transport block can be sent. The indication signaling carries a status value indicating a quantity of coding block groups in the transport block. The status value further indicates at least one coding block group in the data transmission. The status value is represented by using a maximum of K+1 bits, and K is a maximum value of the quantity of coding block groups that can be included in the transport block. In various embodiments, a network device jointly indicates, by using the status value, the quantity of coding block groups in the transport block and the at least one coding block group included in the data transmission, so that a quantity of bits occupied by the indication signaling is reduced, thereby reducing signaling overheads.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: April 13, 2021
    Assignee: HUAWEI TECHNOLOGIES CO, LTD.
    Inventors: Bingyu Qu, Ruiqi Zhang
  • Patent number: 10965355
    Abstract: This application discloses a precoding matrix index (PMI) reporting method, and related communications apparatus and medium. The method includes: determining an rank indicator (RI) and a PMI, where the PMI is used to determine R precoding matrices W1, . . . , WR. An rth precoding matrix Wr in the R precoding matrices satisfies Wr×W1×W2, r, where an lth row of W2, r is obtained by performing DFT transform on an lth row of a matrix V2,rand R is indicated by the RI. The PMI includes first indication information and second indication information. The first indication information includes location index information. The location index information is used to indicate Km,r element locations tr,m,1, . . . , tr,m,Kmj?{1, . . . , T} on an mth row of V2,r. The second indication information is used to indicate Km,r complex coefficients ar,m,tr,mj at the element locations tr,m,1, . . . , tr,m,kmj on the mth row of V2,r. V2,r is determined based on the Km,r element locations and the Km,r complex coefficients.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: March 30, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Xueru Li, Ruiqi Zhang
  • Patent number: 10924168
    Abstract: A reference signal sending method includes the following. A network device sends reference signals of N antenna ports and downlink data to a terminal device, where the reference signals of the N antenna ports include cell common reference signals of N1 antenna ports and reference signals that are of N2 antenna ports and that are specific to the terminal device. After receiving the reference signals of the N antenna ports and the downlink data, the terminal device detects the downlink data based on the reference signals.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: February 16, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventor: Ruiqi Zhang
  • Publication number: 20210044458
    Abstract: A method for transmitting a sounding reference signal and a terminal device are provided. The method includes: receiving, by the terminal device, SRS configuration information from a network device; determining, based on one or more of an SRS bandwidth configuration parameter, a sequence number nSRS of a quantity of SRS transmissions, a quantity ? of antenna ports, and the received SRS configuration information, an index ?(nSRS) corresponding to an antenna port used to transmit an SRS; selecting the antenna port with the index of ?(nSRS) from indexes corresponding to the ? antenna ports; and transmitting the SRS through the antenna port with the index of ?(nSRS) during an nSRSth SRS transmission. nSRS is an integer greater than or equal to 0, ? is a positive integer greater than or equal to 4, and a symbol * indicates a multiplication operation.
    Type: Application
    Filed: October 27, 2020
    Publication date: February 11, 2021
    Inventors: Xiang GAO, Ruiqi ZHANG
  • Publication number: 20210022165
    Abstract: This application discloses methods an apparatuses for sending and receiving uplink control information in the field of communications technology. In some implementations, a terminal device may receive first downlink control information (DCI) from a network device; determine, based on the received first DCI, that an uplink shared channel scheduled by using the first DCI is used to send only uplink control information (UCI); and send first UCI to the network device through the uplink shared channel scheduled by using the first DCI. In other words, the network device indicates to the terminal device by using DCI so that the terminal device can determine, based on an indication of the network device, whether the uplink shared channel scheduled by using the DCI is used to send only the UCI.
    Type: Application
    Filed: October 2, 2020
    Publication date: January 21, 2021
    Inventors: Hao SUN, Yongzhao CAO, Hua LI, Ruiqi ZHANG, Lixia XUE
  • Publication number: 20210021309
    Abstract: This application provides an example communication method and apparatus. The communication method is performed in a communications system, where N antenna ports are configured for the terminal device, N is an integer greater than or equal to 2, the N antenna ports correspond to T antenna port combination modes, each antenna port combination mode corresponds to M antenna ports in the N antenna ports, and each antenna port combination mode set includes at least one antenna port combination mode. The communication method includes receiving, by the network device, first indication information from the terminal device, where the first indication information is used to indicate a first antenna port combination mode set. The method also includes determining, by the network device, K antenna ports in the N antenna ports based on the first antenna port combination mode set and sending, by the network device, second indication information to the terminal device.
    Type: Application
    Filed: September 30, 2020
    Publication date: January 21, 2021
    Inventors: Ruiqi ZHANG, Xiang GAO
  • Publication number: 20210021319
    Abstract: This application provides sounding reference signal transmission methods and apparatuses. One method comprises: determining, by a terminal device, that a sounding reference signal (SRS) to be transmitted is an nSRSth transmission of a plurality of SRS?transmissions, wherein nSRS is a non-negative integer; selecting, by a terminal device, an antenna group of ? antenna groups to transmit the sounding reference signal (SRS) based on ? and nSRS, such that when sending the SRS for 2? times, the SRS is sent through each of the ? antenna groups at least once, wherein ? is a positive integer greater than or equal to 3; and sending, by the terminal device during the nSRSth transmission, the SRS through antenna ports comprised in the selected antenna group.
    Type: Application
    Filed: October 2, 2020
    Publication date: January 21, 2021
    Inventors: Xiang GAO, Ruiqi ZHANG
  • Patent number: 10897293
    Abstract: This application provides a method for determining a precoding matrix set, so as to avoid a case in which a relatively large quantity of precoding matrices in a precoding matrix set cannot be used, thereby improving system performance. A terminal device receives indication information from a network device, and determines a second precoding matrix set front a first precoding matrix set whose rank is R based on the indication information. Each precoding matrix W in the first precoding matrix set satisfies W=W1×W2, the second precoding matrix set is a proper subset of the first precoding matrix set, and the second precoding matrix set does not include W=W1×W2 that satisfies the specific condition in the first precoding matrix set.
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: January 19, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Ruiqi Zhang, Xueru Li