Patents Assigned to China Academy of Telecommunications Technology
  • Beam processing method, base station, and mobile terminal
    Patent number: 10826574
    Abstract: The beam processing method for use in the base station includes: transmitting a first downlink transmission beam training signal to a UE, and receiving first recommended beam-related information reported by the UE in accordance with the first downlink transmission beam training signal; transmitting a second downlink transmission beam training signal to the UE, and receiving second recommended beam-related information reported by the UE in accordance with the second downlink transmission beam training signal; determining a target downlink transmission beam in accordance with the first recommended beam-related information and the second recommended beam-related information; and performing a switching operation on one or more currently-adopted valid downlink transmission beams in accordance with the target downlink transmission beam.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: November 3, 2020
    Assignee: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Qiubin Gao, Runhua Chen, Rakesh Tamrakar, Xin Su, Qiuping Huang
  • Data transmission method, user equipment, base station, and system
    Patent number: 10827403
    Abstract: A data transmission method, a user equipment (UE), a base station and a system are provided. The method includes maintaining transmission of data of a UE by an original base station in a handover process in which the UE hands over from the original base station to a target base station; and transmitting the data to the target base station by the original base station when maintaining the transmission of the data of the UE.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: November 3, 2020
    Assignee: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventor: Dajun Zhang
  • Downlink control information (DCI) transmission method and device
    Patent number: 10827473
    Abstract: The present invention relates to the technical field of communications, and relates in particular to a downlink control information (DCI) transmission method and device, the DCI transmission method comprising: confirming information used indicating a bit number of a first indication field within DCI, the information comprising high layer signalling configuration information or information for whether to configure an unauthorized member carrier; according to the high layer signalling configuration information or the information for whether to configure an unauthorized member carrier, determining the bit number of the first indication field included in the DCI.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: November 3, 2020
    Assignee: China Academy of Telecommunications Technology
    Inventors: Xuejuan Gao, Xueming Pan, Fang-Chen Cheng
  • Data detection method and terminal
    Patent number: 10827512
    Abstract: A data detection method and a terminal applied to a first terminal are provided. The method includes receiving one or more pieces of SA information transmitted by one or more second terminals and used to indicate transmission resources of one or more data-to-be-detected; determining, based on the one or more pieces of SA information, one or more detection weight values corresponding to the one or more data-to-be-detected; detecting, based on the one or more detection weight values, the one or more data-to-be-detected within a data detection capability of the first terminal.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: November 3, 2020
    Assignee: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Rui Zhao, Ying Peng, Li Zhao, Jiayi Fang
  • System message transmission method, transmission device, reception method, reception device and storage medium
    Patent number: 10827463
    Abstract: A system message transmission method, transmission device, reception method reception device and a storage medium are provided. The transmission method includes determining, by a network side device, sets to which each of system messages to be transmitted belongs, wherein the sets include a basic system message set and a specific system message set; determining, by the network side device, a transmission mode of each of the system messages, wherein the transmission mode of system messages in the basic system message set is a broadcast transmission mode, and the transmission mode of system messages in the specific system message set includes a broadcast transmission mode and/or a demand-based dedicated signaling transmission mode.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: November 3, 2020
    Assignee: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Yali Zhao, Pierre Bertrand, Chandrika Kumudinie Worrall, Li Chen
  • Method and device for constraining codebook subset
    Patent number: 10826580
    Abstract: The embodiments of the present disclosure provide a method and a device for constraining a codebook subset. The method includes steps of: determining codebook subset constraint parameters for all or parts of matrix sets for constructing a codebook respectively, each codebook subset constraint parameter indicating an available matrix in a corresponding matrix set; and transmitting the determined codebook subset constraint parameters to a UE. The number of the matrices in each matrix set for constructing the codebook is far less than the number of precoding matrices in the codebook.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: November 3, 2020
    Assignee: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Qiubin Gao, Shanzhi Chen, Wenhong Chen, Hui Li, Runhua Chen, Rakesh Tamrakar
  • ASSOCIATION METHOD, INSTRUCTION METHOD, AND DEVICE FOR SYNCHRONIZATION BLOCK AND PAGING-SCHEDULING SIGNALING MESSAGE
    Publication number: 20200344703
    Abstract: The present application discloses an association method, instruction method, and device for a synchronization block and a paging-scheduling signaling message. In the present application, a terminal performs beam sweeping on received synchronization blocks to obtain a target synchronization block; and the terminal, according to a correspondence between a synchronization block and a paging-scheduling signaling message, determines a paging-scheduling signaling message corresponding to the target synchronization block.
    Type: Application
    Filed: August 28, 2018
    Publication date: October 29, 2020
    Applicant: China Academy of Telecommunications Technology
    Inventors: Zheng Zhao, Ren Da, Fang-Chen Cheng, Qiubin Gao, Bin Ren, Tie Li
  • DATA TRANSMISSION METHOD, USER EQUIPMENT, BASE STATION AND STORAGE MEDIUM
    Publication number: 20200344728
    Abstract: The present disclosure provides a data transmission method, a UE, a base station and a storage medium. The method includes: obtaining a slot format indication (SFI) transmitted by a base station; when a transmission direction of a preset transmission resource indicated by the SFI does not meet transmission requirement of downlink semi-persistent scheduling (SPS) transmission, not performing the transmission related to the downlink SPS transmission on the preset transmission resource; and/or, when a transmission direction of a preset transmission resource indicated by the SFI meets transmission requirement of downlink SPS transmission, performing the transmission related to the downlink SPS transmission on the preset transmission resource. The preset transmission resource is a resource for performing transmission related to the downlink SPS transmission.
    Type: Application
    Filed: October 24, 2018
    Publication date: October 29, 2020
    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Xuejuan GAO, Tony EKPENYONG
  • SWITCH METHOD, TERMINAL AND NETWORK SIDE DEVICE
    Publication number: 20200344649
    Abstract: A switch method, a terminal and a network side device are provided. The method a terminal receiving a switch command sent by a network-side device through a source cell, wherein the switch command comprises access bandwidth information; and the terminal accessing a target cell on a determined partial bandwidth according to the access bandwidth information, so that the terminal switches from the source cell to the network-side target cell.
    Type: Application
    Filed: October 31, 2018
    Publication date: October 29, 2020
    Applicant: China Academy of Telecommunications Technology
    Inventors: Meng Xu, Li Chen, Jing Liang
  • METHOD AND DEVICE FOR RANDOM ACCESS
    Publication number: 20200344811
    Abstract: The present application relates to the field of wireless communications, and in particular, to a method and device for random access, for use in resolving the problem in the prior art of conflict between a time domain resource used by a terminal for random access and a time domain resource occupied for transmission of a SS Block and/or RMSI. In embodiments of the present application, a terminal determines a PRACH time domain resource configured by a base station for the terminal; when determining that at least one time slot comprises a first type of OFDM symbols used for transmission of a SS Block and/or RMSI, the terminal performs random access by means of OFDM symbols different from the first type of OFDM symbols in the at least one time slot.
    Type: Application
    Filed: October 10, 2018
    Publication date: October 29, 2020
    Applicant: China Academy of Telecommunications Technology
    Inventors: Bin Ren, Ren Da, Zheng Zhao, Tie Li
  • PUCCH TRANSMISSION METHOD, TERMINAL AND NETWORK-SIDE DEVICE
    Publication number: 20200344748
    Abstract: A physical uplink control channel transmission method, a terminal, and a network-side device are provided. The method includes: determining a target cyclic shift parameter corresponding to each symbol according to an initial cyclic shift parameter and a random value associated with at least an index of the symbol; sending a physical uplink control channel according to the target cyclic shift parameter.
    Type: Application
    Filed: September 26, 2018
    Publication date: October 29, 2020
    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventor: Xuejuan GAO
  • PROCESSING METHOD AND DEVICE FOR CACHE SYNCHRONOUS EXCEPTION
    Publication number: 20200344644
    Abstract: Disclosed in the present disclosure are a processing method and device for a cache synchronous exception, for solving the problem that no solution for a compression check failure is available in the prior art. According to embodiments of the present disclosure, when caches are out of synchronization, a caching failure notification message is sent to a transmitting device; a reset processing is carried out on a compressed cache area, and a reset instruction is sent; and then subsequent data packet transmission is carried out by using reset cache areas. In the present disclosure, after it is determined that the caches are out of synchronization, the caching failure notification message is sent; the transmitting device performs a reset processing on the compressed cache area, and notifies a receiving device to carry out a reset processing on a decompressed cache area.
    Type: Application
    Filed: October 29, 2018
    Publication date: October 29, 2020
    Applicant: China Academy of Telecommunications Technology
    Inventors: Jiamin Liu, Haiyang Quan
  • MULTI-SLOT TRANSMISSION METHOD AND DEVICE
    Publication number: 20200344753
    Abstract: A multi-slot transmission method and a multi-slot transmission device are provided. The multi-slot transmission method includes: determining a value of the quantity of slots in a set of the quantities of slots; and transmitting the value of the quantity of slots to a UE, the value of the quantity of slots being used by the UE to perform a PUCCH transmission and/or a PUSCH transmission within multiple slots.
    Type: Application
    Filed: October 24, 2018
    Publication date: October 29, 2020
    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventor: Xuejuan GAO
  • METHOD AND DEVICE FOR INFORMATION INDICATION AND RESOURCE DETERMINATION AND COMPUTER STORAGE MEDIUM
    Publication number: 20200344020
    Abstract: Disclosed are a method and a device for information indication and resource determination, and a computer storage medium, which are used to indicate and determine the resource occupation state of a DMRS port, and to save a signaling overhead. The information indication method provided in an embodiment of the present application comprises: determining indication information on a demodulation reference signal (DMRS) port resource that a terminal needs to occupy, according to a preset configuration list, wherein the configuration list comprises DMRS group information and DMRS port information; and notifying the terminal of the indication information.
    Type: Application
    Filed: October 19, 2018
    Publication date: October 29, 2020
    Applicant: China Academy of Telecommunications Technology
    Inventors: Baojuan Guo, Tamrakar Rakesh
  • Uplink power allocation method, uplink power allocation device and uplink power allocation system
    Patent number: 10820277
    Abstract: An uplink power allocation method, an uplink power allocation device and an uplink power allocation system are provided. The uplink power allocation method includes: determining users to be paired, based on locations of the users within the cell; determining Patten Division Multiple Access (PDMA) pattern matrixes, allocating different PDMA pattern vector groups for the users respectively, and obtaining a power control pattern matrix based on the PDMA pattern vector groups; and determining power control factors of the users in each pair based on the power control pattern matrix, and determining an uplink transmission power of each user based on the power control factors.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: October 27, 2020
    Assignee: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Shaoli Kang, Xiaodong Sun, Hao Liu, Bin Ren, Qiubin Gao
  • Power distribution method and apparatus
    Patent number: 10820279
    Abstract: Disclosed in the present application are a power distribution method and apparatus, used for enabling simultaneous transmission by communication channels using TTI of different lengths by means of controlling the transmission power of the transmission channels respectively using TTI of different lengths to not surpass the permitted maximum transmission power of a device. The method comprises: determining the sum of the transmission powers of an uplink channel using a first TTI length for transmission and of an uplink channel using a second TTI length for transmission in a sub-frame; and when the sum surpasses the permitted maximum transmission power of a device, implementing power distribution according to a predetermined rule, such that the sum does not surpass the permitted maximum transmission power of the device.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: October 27, 2020
    Assignee: China Academy of Telecommunications Technology
    Inventor: Xuejuan Gao
  • Data transmission method and device
    Patent number: 10820350
    Abstract: The present invention discloses a data transmission method and device configured to address the problems in LTE-U employing the existing channel access mechanism, in which poor channel access capacity is caused, and congestion between UEs in the same cell is likely to occur if multiple UEs cannot access at the same time. The method comprises: sending, by a communication device, a signal during a GP between a downlink subframe and an uplink subframe to occupy a current channel; and transmitting, by the communication device, data via the current channel. The solution provided in embodiments of the present invention has low implementation complexity, and can address the problem of UL having a poorer opportunity to access than WIFI, thus facilitating the implementation of MU-FDM and MU-SDM to prevent significant degradation of LAA performance and a waste of radio resources.
    Type: Grant
    Filed: July 18, 2016
    Date of Patent: October 27, 2020
    Assignee: China Academy of Telecommunications Technology
    Inventors: Jiaqing Wang, Xueming Pan, Weijie Xu
  • Reference signal mapping method and device
    Patent number: 10812235
    Abstract: Disclosed are a reference signal mapping method and device, used for realizing a CSI-RS mapping of 16 or more ports, so as to realize a CSI-RS transmission of 16 or more ports. The method comprises: according to an N port reference signal pattern, determining that a channel state information reference signal (CSI-RS) is mapped on a resource unit RE, N being an integer greater than 16, wherein, an RE position, having one N port CSI-RS of the N port reference signal pattern mapped thereto, is determined according to an RE position having a CSI-RS in a plurality of groups of 8 port reference signal patterns mapped thereto, each S port in the N port is multiplexed with S code words of 8 code words using an 8-bit orthogonal spreading code, and the 8 port reference signal pattern is an 8 port CSI-RS pattern defined by 3GPP Rel-13; and performing resource mapping on the CSI-RS according to the determined RE.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: October 20, 2020
    Assignee: China Academy of Telecommunications Technology
    Inventors: Hui Li, Runhua Chen, Qiubin Gao, Tamrakar Rakesh, Qiuping Huang
  • Polar code encoding method and device and polar code decoding method and device
    Patent number: 10805045
    Abstract: Disclosed are a polar code encoding method and device and a polar code decoding method and device. The polar code encoding method comprises: reading a known first sequence; and for an information sequence to be encoded, combining the information sequence with the first sequence, and performing polar code encoding on the combined sequence. In the polar code encoding method provided by embodiments of the present disclosure, a known first sequence is read and polar code encoding is performed on an information sequence and the first sequence. Thus, polar code encoding on the information sequence to be encoded is implemented, and a new polar code encoding solution is provided.
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: October 13, 2020
    Assignee: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Jiaqing Wang, Shaohui Sun, Xueming Pan
  • Uplink data transmission method and device
    Patent number: 10805946
    Abstract: A method and a device for transmitting uplink data are provided. The method includes sending, by a UE, an initial uplink transmission carrying an inactive-state UE identifier of the UE in uplink contention resources available in a region, in case that uplink data of the UE in an inactive state arrives; and receiving a feedback acknowledgement message for acknowledging the initial uplink transmission.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: October 13, 2020
    Assignee: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Li Chen, Haiyang Quan