Patents by Inventor Zhifeng Yuan

Zhifeng Yuan 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: 10979263
    Abstract: Provided are a data processing method and device. The method may include: generating first data, wherein generating the first data comprises one of: performing differential encoding on second data to generate third data, and processing the third data by using a sequence to generate the first data; processing the second data by using a sequence to generate fourth data, and performing differential encoding on the fourth data to generate the first data; and processing the second data by using a sequence to generate the first data.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: April 13, 2021
    Assignee: ZTE CORPORATION
    Inventors: Weimin Li, Zhifeng Yuan, Yuzhou Hu
  • Patent number: 10958497
    Abstract: The present invention relates to a method and apparatus for processing a modulation symbol. The processing method includes: a transmitter obtaining a transmission power ratio ?j, wherein in the transmission power ratio ?j?{?0, ?1, ?2}, j is a natural number, and ?0, ?1 and ?2 are all positive numbers; and the transmitter modulating a first group of bit sequences b0(i), b0(i+1) and a second group of bit sequences b1(i), b1(i+1), . . . , b1(i+n) according to the transmission power ratio ?j so as to obtain a modulation symbol, wherein i is a natural number, and n?{1, 3, 5}. The present invention solves the problem in the relevant art that an uncertain number of transmission power ratios affects the performance of a system and increases the design complexity of signaling, thereby reducing signaling overheads and improving system stability and demodulation performance.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: March 23, 2021
    Assignee: ZTE CORPORATION
    Inventors: Hong Tang, Jianqiang Dai, Zhifeng Yuan
  • Publication number: 20210084617
    Abstract: Provided are a data transmission method and apparatus, a terminal and a base station. The data transmission method includes selecting, by a terminal, reference information from a reference information set corresponding to a preset reference information type; obtaining a first target data packet according to the selected reference information and a data packet to be transmitted; and sending the first target data packet to a base station.
    Type: Application
    Filed: January 11, 2019
    Publication date: March 18, 2021
    Applicant: ZTE CORPORATION
    Inventors: Bo DAI, Zhifeng YUAN, Kun LIU, Zhongda DU, Yifei YUAN
  • Publication number: 20210036796
    Abstract: Methods, systems, and devices are disclosed for digital wireless communication, and more specifically, for the use of pilot sequences that improves performance of channel estimation. In one exemplary aspect, a method of wireless communication performed by a communication node is disclosed. The method includes determining, using a first index, a mask sequence from a plurality of pre-determined mask sequences, wherein the plurality of pre-determined mask sequences is determined based on permutations of values 1, ?1, i, and ?i or permutations of values 1+i, or 1?i, or ?1+i, or ?1?i; determining a Walsh sequence using a second index, wherein the Wash sequence has a same length as the mask sequence; generating a pilot sequence by combining the mask sequence and the Walsh sequence; and performing a wireless transmission using the pilot sequence.
    Type: Application
    Filed: September 6, 2017
    Publication date: February 4, 2021
    Inventors: Zhifeng Yuan, Jianqiang Dai
  • Patent number: 10903968
    Abstract: Provided are an information transmission method and device, and a computer storage medium. The method includes sending signal indication information to a receiver and transmitting a signal according to the signal indication information; the signal indication information includes at least one of the following: a transmission mode, interference layer information, power ratio indication information, pre-coding or port information and physical resource block (PRB) indication information.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: January 26, 2021
    Assignee: ZTE CORPORATION
    Inventors: Jianqiang Dai, Bo Dai, Zhifeng Yuan
  • Publication number: 20200373994
    Abstract: In an exemplary embodiment, a network node can receive signals from user devices in a wireless communication network. The network node can combine the signals received at each receive antenna of the network node based on vectors from a pre-defined set of vectors. The network node can also process the combined signals to obtain an estimate of the signals.
    Type: Application
    Filed: August 12, 2020
    Publication date: November 26, 2020
    Inventors: Zhifeng Yuan, Weimin Li, Yuzhou Hu, Xun Yang, Hong Tang, Jianqiang Dai
  • Publication number: 20200358499
    Abstract: A method and apparatus for generating and utilizing spreading sequence codebooks for a symbol-level sequence spreading is disclosed. In one embodiment, a method performed by a wireless communication device, comprising: receiving a first number from a wireless communication node; selecting a first spreading sequence codebook from at least one spreading sequence codebook; selecting a first spreading sequence from the first spreading sequence codebook according to the first number; and spreading data symbols according to the first spreading sequence, wherein the at least one spreading sequence codebook each comprises a plurality of spreading sequences configured based on one entry of a first sequence set after cyclic shifting operation, wherein the first sequence set before cyclic shifting operation is configured based on a second sequence set.
    Type: Application
    Filed: July 28, 2020
    Publication date: November 12, 2020
    Inventors: Sha WANG, Yifei YUAN, Li TIAN, Zhifeng YUAN, Wei CAO
  • Patent number: 10826557
    Abstract: Disclosed in the embodiments of the present invention is a data transmission method. The method includes: a transmitter transmitting, on a first time frequency resource region, transmission signals that are generated from a bit sequence B using at least a symbol extension technology; the extension sequence used by the symbol extension technology being the Index1-th sequence of a sequence set containing K1 extension sequences, the Index1-th characterizing the first index value; the transmitter using part of the bits of the bit sequence B and a bit sequence B0 as a bit sequence B2, and transmitting, over the Index2-th sub-resource pool of a second time frequency resource region containing K2 sub-resource pools, transmission signals generated on the basis of the bit sequence B2; the Index2-th characterizing a second index value; the first index value Index1 and the second index value Index2 both being determined according to the bit sequence B0.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: November 3, 2020
    Assignee: ZTE CORPORATION
    Inventors: Zhifeng Yuan, Weimin Li
  • Publication number: 20200322994
    Abstract: Optimizing the resource configuration or selection for grant-free contention-based non-orthogonal multiple access (NOMA) transmissions is an effective way to increase network capacity and reduce multi-user interference at the user equipment (UE). In some embodiments, a network node may determine the current traffic load, select multiple access (MA) sequences for the UE based on the determination, and transmit this selection to the UE for subsequent transmissions. In other embodiments, the UE may receive a message with an indication of the traffic load being experienced by the base station that the UE is attempting to connect to, and then may randomly select an MA sequence for subsequent transmissions.
    Type: Application
    Filed: June 22, 2020
    Publication date: October 8, 2020
    Inventors: Li Tian, Wei Cao, Sha Wang, Yifei Yuan, Zhifeng Yuan
  • Publication number: 20200244495
    Abstract: Provided are a data processing method and device. The method may include: generating first data, wherein generating the first data comprises one of: performing differential encoding on second data to generate third data, and processing the third data by using a sequence to generate the first data; processing the second data by using a sequence to generate fourth data, and performing differential encoding on the fourth data to generate the first data; and processing the second data by using a sequence to generate the first data.
    Type: Application
    Filed: October 12, 2018
    Publication date: July 30, 2020
    Inventors: Weimin LI, Zhifeng YUAN, Yuzhou HU
  • Publication number: 20200221437
    Abstract: A data transmission method is provided. The method includes: a transmitter generates a transmission signal on the basis of transmission information and modulates, by means of a carrier modulation, the transmission signal to a target time-frequency resource for transmission.
    Type: Application
    Filed: November 30, 2017
    Publication date: July 9, 2020
    Inventors: Zhifeng YUAN, Chunlin YAN, Weimin LI
  • Publication number: 20200154405
    Abstract: A system and method for allocating network resources are disclosed herein. In one embodiment, the system and method are configured to perform: transmitting a resource allocation signal to a communication node, the resource allocation signal indicating an updated resource hopping rule for the communication node to transmit a signal, wherein the updated resource hopping rule is derived based on an initial resource hopping rule by adjusting a time period defined by the initial resource hopping rule or rearranging at least two resource columns defined by the initial resource hopping rule.
    Type: Application
    Filed: January 16, 2020
    Publication date: May 14, 2020
    Inventors: Zhifeng YUAN, Xun YANG, Weimin LI
  • Patent number: 10651887
    Abstract: Provided are multiuser communication methods and devices for Code Division Multiple Access (CDMA). N modulated symbols which are obtained by modulating a code block coded by a channel coder are acquired, where N is a positive integer more than or equal to 2. The N modulated symbols are spread according to N spread sequences with a specified length, and there may be at least two different spread sequences in the N spread sequences with the specified length. The spread modulated symbols are transmitted.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: May 12, 2020
    Assignee: XI'AN ZHONGXING NEW SOFTWARE CO., LTD.
    Inventors: Zhifeng Yuan, Weimin Li
  • Patent number: 10574264
    Abstract: The disclosure discloses a method for supporting low bit rate coding. A source data packet to be coded is repeated for i times, and the data packet which is repeated for i times is coded. The disclosure also discloses an apparatus for supporting low bit rate coding and a computer storage medium.
    Type: Grant
    Filed: August 26, 2014
    Date of Patent: February 25, 2020
    Assignee: ZTE Corporation
    Inventors: Liguang Li, Jun Xu, Zhifeng Yuan, Jin Xu, Kaibo Tian, Jun Zhang, Haiming Wang, Shiwen He
  • Publication number: 20200052838
    Abstract: Disclosed in the embodiments of the present invention is a data transmission method. The method includes: a transmitter transmitting, on a first time frequency resource region, transmission signals that are generated from a bit sequence B using at least a symbol extension technology; the extension sequence used by the symbol extension technology being the Index1-th sequence of a sequence set containing K1 extension sequences, the Index1-th characterizing the first index value; the transmitter using part of the bits of the bit sequence B and a bit sequence B0 as a bit sequence B2, and transmitting, over the Index2-th sub-resource pool of a second time frequency resource region containing K2 sub-resource pools, transmission signals generated on the basis of the bit sequence B2; the Index2-th characterizing a second index value; the first index value Index1 and the second index value Index2 both being determined according to the bit sequence B0.
    Type: Application
    Filed: November 30, 2017
    Publication date: February 13, 2020
    Inventors: Zhifeng YUAN, Weimin LI
  • Publication number: 20200028653
    Abstract: Provided are a feedback information processing method, device and system, a base station and a terminal. The method includes: multiplexing, by a first node, feedback information for a plurality of second nodes in a media access control protocol data unit (MAC PDU), where the feedback information is information generated after the first node correctly receives transmission blocks from the second nodes, and the feedback includes a plurality of pieces of bit information. After the first node multiplexes the feedback information for the plurality of second nodes in the MAC PDU, a radio network temporary identifier (RNTI) is used in a process that the first node delivers the feedback information to the plurality of second nodes.
    Type: Application
    Filed: September 15, 2017
    Publication date: January 23, 2020
    Inventors: Mingyue WANG, Feng XIE, Zhifeng YUAN
  • Publication number: 20200022162
    Abstract: The present disclosure discloses a transmission resource determining method and device, a user equipment, and a storage medium. The method includes: deriving, by a user equipment, a hopping rule of a used transmission resource, wherein in the hopping rule, the transmission resource used after a current hopping is associated with identification information used in the latest transmission, and is associated with at least one of: frequency domain information corresponding to a physical resource used in the latest transmission, and time domain information of the latest transmission, wherein the identification information is used to distinguish a plurality of user equipments using the same resource for information transmission; and performing, by the user equipment, a corresponding transmission resource hopping at a preset time interval according to the hopping rule.
    Type: Application
    Filed: March 26, 2018
    Publication date: January 16, 2020
    Inventors: Xun YANG, Weimin LI, Bo DAI, Zhifeng YUAN
  • Publication number: 20190356440
    Abstract: Provided are a message sending method and device, and an electronic device. The method includes: sending, by a first node, a message to a second node, wherein the message includes at least one of: a first reference signal carried on a first resource, or a data packet carried on a second resource; wherein the first reference signal belongs to a first reference signal set, and the first resource belongs to a first resource set; the second resource belongs to a second resource set; and the first resource set and the second resource set have a gap in a time domain, and the value of the gap is greater than or equal to 0.
    Type: Application
    Filed: February 6, 2018
    Publication date: November 21, 2019
    Inventors: Kun LIU, Bo DAI, Zhaohua LU, Xianming CHEN, Zhifeng YUAN, Wei CAO, Chunlin YAN
  • Patent number: 10484209
    Abstract: This document discloses a data transmission method and apparatus. The method includes: obtaining N data symbols to be sent; determining N complex sequences to be used; processing the N data symbols using the N complex sequences respectively to generate N data symbol sequences; superimposing the N data symbol sequences to generate a superimposed data symbol sequence; and sending the superimposed data symbol sequence; where N is an integer number greater than or equal to 2.
    Type: Grant
    Filed: January 14, 2016
    Date of Patent: November 19, 2019
    Assignee: ZTE CORPORATION
    Inventors: Weimin Li, Zhifeng Yuan
  • Patent number: 10476528
    Abstract: A packet processing method and device are disclosed. The method includes: performing code block segmentation on a source packet to obtain a sub-packets; performing error correction encoding on each sub-packet respectively, or performing error correction encoding after respectively adding a CRC sequence to each sub-packet to obtain a error correction encoding sub-packets; performing network encoding on the a error correction encoding sub-packet to obtain b check sub-packets; and performing bit selection operation on the a error correction encoding sub-packets and the b check sub-packets respectively to collectively form an encoded packet; herein a and b are integers greater than 0.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: November 12, 2019
    Assignee: ZTE CORPORATION
    Inventors: Liguang Li, Jun Xu, Jin Xu, Zhifeng Yuan