Patents by Inventor Xincai Li

Xincai Li 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: 10448430
    Abstract: A random access method comprises: transmitting, by a firstuser equipment (UE) in a UE group, and according to a time-frequency resource, a preamble to an evolved node B (eNB); and monitoring, by a second UE in the UE group and/or the first UE, for a random access response (RAR) corresponding to the preamble transmitted by the eNB, wherein the first UE is at least one UE in the UE group, and the second UE is all or a part of the UEs in the UE group.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: October 15, 2019
    Assignee: ZTE CORPORATION
    Inventors: Wen Zhang, Shuqiang Xia, Bo Dai, Qian Dai, Zhaohua Lu, Kun Liu, Xianming Chen, Jing Shi, Xincai Li, Huiying Fang
  • Publication number: 20190289614
    Abstract: A data transmission method includes: determining a carrier priority to be used according to a traffic type; performing channel contention by performing a clear channel assessment (CCA) process according to the carrier priority and using a preset CCA mechanism; and sending data of the traffic type on a contended channel.
    Type: Application
    Filed: August 2, 2017
    Publication date: September 19, 2019
    Inventors: Xincai LI, Yajun ZHAO, Ling YANG, Hanqing XU
  • Publication number: 20190268938
    Abstract: Disclosed are a method, a device and a system for transmitting information and a computer storage medium. The method for transmitting information in the embodiments of the present disclosure comprises: a base station acquiring a configured self-contained structure, the self-contained structure comprising a time-frequency resource structure; and the base station sending data information or receiving data information according to the self-contained structure.
    Type: Application
    Filed: November 15, 2016
    Publication date: August 29, 2019
    Inventors: Yajun Zhao, Hanqing Xu, Xincai Li, Ling Yang
  • Publication number: 20190159251
    Abstract: Provided are an HARQ-ACK information transmission method and apparatus. The method includes: determining the HARQ-ACK to be transmitted and a resource location on an unlicensed carrier for transmitting the HARQ-ACK according to a predefinition or a signaling indication, performing a listen before talk (LBT) procedure on the unlicensed carrier, and transmitting the HARQ-ACK on the resource location after the LBT procedure is successfully performed.
    Type: Application
    Filed: April 28, 2017
    Publication date: May 23, 2019
    Applicant: ZTE Corporation
    Inventors: Xincai LI, Wei GOU, Yajun ZHAO, Focai PENG, Ling YANG
  • Publication number: 20190124687
    Abstract: Provided are a preamble transmission method and apparatus. The method comprises: a UE executing LBT on a first time frequency resource of an unlicensed carrier until a right to use the unlicensed carrier is acquired, wherein the LBT comprises LBT executed for transmitting a preamble; and after a right to use the access to the unlicensed carrier is acquired, the UE transmitting the preamble on a second time frequency resource located behind the first time frequency resource, wherein the second time frequency resource is a pre-configured PRACH time frequency resource at a fixed position, or a PRACH time frequency resource determined according to an LBT execution position. By means of the present disclosure, the problem in the relevant art of intra-cell interference caused by uplink data transmission over an unlicensed carrier is solved, and the uplink data transmission quality is improved.
    Type: Application
    Filed: August 5, 2016
    Publication date: April 25, 2019
    Inventors: Ling YANG, Wei GOU, Yajun ZHAO, Focai PENG, Feng BI, Xincai LI
  • Patent number: 10271355
    Abstract: Methods, nodes, a system, and computer storage mediums for non-contention random access are provided. The method for non-contention random access includes that: a first node sends configuration information of non-contention random access to a second node through a downlink channel; and the second node obtains the configuration information of the non-contention random access, and sends a random access message on a Physical Random Access Channel (PRACH) according to the configuration information.
    Type: Grant
    Filed: August 6, 2014
    Date of Patent: April 23, 2019
    Assignee: ZTE Corporation
    Inventors: Kun Liu, Bo Dai, Zhaohua Lu, Shuqiang Xia, Huiying Fang, Jing Shi, Xincai Li
  • Publication number: 20190029046
    Abstract: A method and apparatus for sending and receiving uplink data, a terminal, and a base station are provided. The method comprises: determining, according to a self-defined instruction message or an instruction message received from a base station, a start symbol position or the start symbol position and an end symbol position for transmitting a subframe on a physical uplink shared channel (PUSCH) on an unlicensed carrier; and sending uplink data according to the start symbol position or according to the start symbol position and the end symbol position. By means of the embodiments of the present invention, the problem of failing to determine the time point of transmitting uplink data on an unlicensed carrier by a terminal is resolved, thereby achieving the effect of determining the time point of transmitting the uplink data on the unlicensed carrier by the terminal, and providing the effect of improving the data transmission efficiency.
    Type: Application
    Filed: January 18, 2017
    Publication date: January 24, 2019
    Inventors: Xincai LI, Yajun ZHAO, Wei GOU, Focai PENG, Feng BI, Ling YANG
  • Publication number: 20190014596
    Abstract: Provided are a method and apparatus for configuring contention-based access parameters of a Licensed-Assisted Access (LAA) device. The method includes: determining, according to different priority classes, different Listen Before Talk (LBT) mechanisms or different LBT mechanism parameter sets corresponding to the different priority classes; executing contention-based access to an unlicensed carrier by using the different LBT mechanisms or the different LBT mechanism parameter sets corresponding to the different priority classes; and when a right of using the unlicensed carrier is successfully gained based on a used LBT mechanism or a used LBT mechanism parameter set, transmitting data by utilizing the unlicensed carrier.
    Type: Application
    Filed: September 23, 2016
    Publication date: January 10, 2019
    Inventors: Ling YANG, Wei GOU, Focai PENG, Feng BI, Xincai LI, Yajun ZHAO
  • Publication number: 20190007972
    Abstract: The embodiments of the present disclosure provide a method for processing an LBT parameter, a method for adjusting a contention window and associated apparatuses. The method for processing an LBT parameter includes: generating, by a first station, an LBT parameter comprising a parameter used by the first station to perform LBT for unlicensed carriers and/or indicating a parameter used by a second station receiving the LBT parameter to perform LBT for the unlicensed carriers; and transmitting, by the first station, the LBT parameter. With the embodiments of the present disclosure, the problem associated with interference due to unlicensed carrier contention by neighboring stations can be solved, such that the interference between the neighboring stations due to unlicensed carrier contention by the neighboring stations can be avoided.
    Type: Application
    Filed: April 27, 2018
    Publication date: January 3, 2019
    Inventors: Wei Gou, Feng Bi, Yajun Zhao, Xincai Li, Ling Yang
  • Patent number: 10172154
    Abstract: Provided are a method and device for sending control information and receiving control information. The method for sending control information comprises repeatedly sending control information within a scheduling period of the control information M times, wherein the scheduling period is the length of N radio frames, N and M are positive integers greater than 1, and N is greater than or equal to M. The disclosure solves the technical problem in the related art that control information cannot be correctly received in a low-coverage environment and thus a terminal cannot normally access a network, achieving the technical effect of accurately receiving the control information so as to ensure that the network can be accessed normally.
    Type: Grant
    Filed: November 19, 2013
    Date of Patent: January 1, 2019
    Assignee: XI'AN ZHONGXING NEW SOFTWARE CO., LTD.
    Inventors: Huiying Fang, Bo Dai, Shuqiang Xia, Jing Shi, Xincai Li, Shupeng Li
  • Publication number: 20180367282
    Abstract: The present disclosure provides a data scheduling and transmission method, apparatus and system. The data scheduling method includes: configuring scheduling information according to a predetermined unlicensed-uplink-subframe scheduling mode, where the scheduling information is used for instructing a terminal to transmit uplink data on an unlicensed frequency spectrum; and receiving, according to the scheduling information, the uplink data sent by the terminal. This solves the problem of a reduced uplink data transmission efficiency due to a lack of a technology for reducing signaling overheads and improving an uplink transmission rate on an unlicensed frequency spectrum in the related art, thereby achieving effects of reducing the signaling overheads and improving the uplink transmission rate on the unlicensed frequency spectrum.
    Type: Application
    Filed: October 14, 2016
    Publication date: December 20, 2018
    Inventors: Xincai LI, Wei GOU, Yajun ZHAO, Feng BI
  • Publication number: 20180324604
    Abstract: The present disclosure provides a clear channel assessment detection method and apparatus. The method includes: acquiring a clear channel assessment (CCA) detection pattern or a Muting pattern; and performing a CCA detection to an unlicensed carrier channel on resources corresponding to one of the CCA detection pattern or the Muting pattern.
    Type: Application
    Filed: November 4, 2016
    Publication date: November 8, 2018
    Inventors: Ling YANG, Wei GOU, Focai PENG, Yajun ZHAO, Xincai LI, Feng BI, Chenchen ZHANG
  • Patent number: 10080242
    Abstract: Disclosed are a method and system for allocating random access channel resources, wherein the method includes the following steps: a first node sending random access channel configuration information through a downlink channel, wherein the information includes at least configuration information of a random access channel allocated to a second node. The present document relates to the field of mobile communication. The technical solution according to the embodiment of the present document is applicable to a machine type communication (MTC) system, thereby solving the problem of an MTC user equipment (UE) receiving a random access response message, and achieving a receiving configuration of the random access response message in an improvement design.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: September 18, 2018
    Assignee: ZTE Corporation
    Inventors: Kun Liu, Bo Dai, Zhaohua Lu, Shuqiang Xia, Huiying Fang, Jing Shi, Xincai Li
  • Patent number: 10075951
    Abstract: The present invention provides a method, a base station, and a terminal for transmitting system information, wherein, the method includes: determining available system information retransmission resources (201); the base station predefining that part of or all of the available system information retransmission resources are used for retransmission of system information (202).
    Type: Grant
    Filed: May 19, 2014
    Date of Patent: September 11, 2018
    Assignee: ZTE Corporation
    Inventors: Huiying Fang, Bo Dai, Shuqiang Xia, Jing Shi, Xincai Li
  • Publication number: 20180213563
    Abstract: Embodiments provide a contention-based access method and device, which include that: a transmission node acquires predefined information; and the transmission node performs contention-based access according to the predefined information, wherein the predefined information includes at least one of: a frame structure, a data transmission subframe location, a data type, dedicated indication signaling, a frame scheduling manner and data transmission. Listen Before Talk (LBT) different from Downlink (DL) is adopted, and a flow is simplified when Uplink (UL) LBT is executed, so that the problems of poor UL performance and low spectrum efficiency caused by adoption of DL LBT for UL in the related solution may be solved.
    Type: Application
    Filed: August 8, 2016
    Publication date: July 26, 2018
    Inventors: Ling Yang, Wei Gou, Bo Dai, Focai Peng, Feng Bi, Yajun Zhao, Xincai Li
  • Patent number: 10021723
    Abstract: A random access method and system are disclosed. The method includes: a second node sending a random access signaling to a first node; and the first node replying a random access response message to the second node, wherein random access response information of the second node is carried in the random access response message.
    Type: Grant
    Filed: March 17, 2014
    Date of Patent: July 10, 2018
    Assignee: ZTE Corporation
    Inventors: Kun Liu, Bo Dai, Shuqiang Xia, Zhaohua Lu, Huiying Fang, Jing Shi, Xincai Li
  • Publication number: 20180192442
    Abstract: A data transmission method includes: transmitting by a base station a configuration signaling to an UE, wherein the configuration signaling carries a CCA parameter of the UE and an uplink transmission parameter of the UE; and receiving, by the base station, uplink data which are transmitted by the UE according to the configuration signaling.
    Type: Application
    Filed: May 9, 2016
    Publication date: July 5, 2018
    Inventors: Xincai LI, Wei GOU, Yajun ZHAO
  • Patent number: 10015780
    Abstract: A method and an apparatus for transmitting a control channel, a method and an apparatus for processing the transmission of the control channel, a network side device and a terminal are provided. The method for transmitting the control channel is applied to the network side device. The method for transmitting the control channel includes: acquiring indicating information for indicating a terminal type; and when the indicating information indicates that the terminal type is a first terminal type, transmitting the control channel to the terminal with the first terminal type in multiple sub-frames.
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: July 3, 2018
    Assignee: ZTE CORPORATION
    Inventors: Jing Shi, Bo Dai, Shuqiang Xia, Xincai Li, Huiying Fang
  • Publication number: 20180184461
    Abstract: A random access method comprises: transmitting, by a firstuser equipment (UE) in a UE group, and according to a time-frequency resource, a preamble to an evolved node B (eNB); and monitoring, by a second UE in the UE group and/or the first UE, for a random access response (RAR) corresponding to the preamble transmitted by the eNB, wherein the first UE is at least one UE in the UE group, and the second UE is all or a part of the UEs in the UE group.
    Type: Application
    Filed: May 13, 2016
    Publication date: June 28, 2018
    Inventors: Wen Zhang, Shuqiang Xia, Bo Dai, Qian Dai, Zhaohua Lu, Kun Liu, Xianming Chen, Jing Shi, Xincai Li, Huiying Fang
  • Patent number: 9986558
    Abstract: The disclosure discloses a method for transmitting system information for transmitting system information, a system and a device. The method includes that: a position of a resource for repeatedly sending the system information for repeatedly sending system information in a transmission period for the system information is determined; and the system information is sent on the resource for repeatedly sending the system information for repeatedly sending system information.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: May 29, 2018
    Assignee: ZTE CORPORATION
    Inventors: Huiying Fang, Bo Dai, Shuqiang Xia, Jing Shi, Xincai Li