Patents Assigned to China Academy of Telecommunications Technology
  • Publication number: 20210045124
    Abstract: An RA method, a terminal, and a network side device are provided. The method includes: receiving, by a terminal within an activated BWP, DCI transmitted by a network side device, where the DCI includes an RA field; and determining, by the terminal according to the size of the activated BWP, RA information indicated by the RA field.
    Type: Application
    Filed: January 11, 2019
    Publication date: February 11, 2021
    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Lei WANG, Yanping XING
  • Patent number: 10917916
    Abstract: Disclosed in the present application are a method and a device for transmitting PRACH signals in an unauthorized spectrum, used for enhancing channel access for a PRACH signal. The method comprises: before transmitting each candidate resource as configured in resources, a terminal performs LBT detection according to configuration information of a transmission resource for transmitting PRACH signals until a current channel is detected to be idle; and after detecting that the current channel is idle, the terminal transmits a PRACH signal on the corresponding candidate resource. In the present application, a plurality of candidate resources are configured in a transmission resource for transmitting PRACH signals, such that the terminal may transmit the PRACH signals on the corresponding candidate resource when it is detected that the current channel is idle before any candidate resource, thereby improving transmission probability for PRACH signals and enhancing channel access for PRACH signals.
    Type: Grant
    Filed: January 3, 2017
    Date of Patent: February 9, 2021
    Assignee: China Academy of Telecommunications Technology
    Inventors: Jiaqing Wang, Xueming Pan, Qianqian Si
  • Publication number: 20210037416
    Abstract: A method of configuring Uplink Data Compression and a device thereof are provided. The method includes: in a case that first UDC configuration information sent by a target base station is received by a user equipment, configuring, by the user equipment, an operator-defined dictionary stored by the user equipment for a compression processing of uplink data, according to the first UDC configuration information, where the first UDC configuration information includes indication information of using the operator-defined dictionary stored by the user equipment, and a target PLMN of the target base station is different from a source PLMN of a source base station of the user equipment.
    Type: Application
    Filed: January 23, 2019
    Publication date: February 4, 2021
    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventor: Haiyang QUAN
  • Patent number: 10911202
    Abstract: Disclosed are an uplink and downlink transmission resource allocation method and device. In this application, a first channel is transmitted on a specified time-frequency resource within a first channel transmitting period according to the first channel transmitting period. The first channel is at least used for notifying allocation information of an uplink transmission resource and a downlink transmission resource within the first channel transmitting period or an effective time period of the first channel, so that dynamic partitioning and notification of the uplink transmission resource and the downlink transmission resource are achieved.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: February 2, 2021
    Assignee: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Xuejuan Gao, Fang-chen Cheng, Xueming Pan, Shaohui Sun
  • Patent number: 10912052
    Abstract: A method for transmitting a synchronization sequence, and a method and a device for synchronization detection are provided, the method for transmitting the synchronization sequence including: setting a target synchronization sequence with good autocorrelation characteristic, where at least one segment of sequence truncated in a time domain or a frequency domain of the target synchronization sequence is a sub-synchronization sequence, and the sub-synchronization sequence has good autocorrelation characteristic and the sub-synchronization sequences have good cross-correlation between each other; and transmitting the target synchronization sequence to a user equipment.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: February 2, 2021
    Assignee: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Zheng Zhao, Bin Ren, Fangchen Cheng, Wenping Ma, Shaohui Sun, Xueming Pan
  • Patent number: 10911112
    Abstract: A signal transmission method and device are provided. The method includes: determining a codebook C being a set of matrices W; determining a matrix set ?={W}?C from the codebook C; generating one or more layers of signals, beamforming the signals with matrixes in the matrix set ?, and cyclically mapping the matrixes in the matrix set ? to different locations of transmission resources; and transmitting the beamformed signals at the different locations of the transmission resources.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: February 2, 2021
    Assignee: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Runhua Chen, Qiuping Huang, Qiubin Gao, Rakesh Tamrakar
  • Patent number: 10912014
    Abstract: Disclosed are a data transmission method and device. The method comprises: a sending end sending at least one synchronization signal (SI), with the SI carrying a first identifier; and at a time-frequency location of system information corresponding to the SI, sending the system information, the system information carrying information for indicating a second identifier, and identification information about the sending end comprising the first identifier and the second identifier. According to a mapping relationship between an SI and a first identifier, a receiving end can obtain the first identifier after detecting the SI; and by means of carrying information for indicating a second identifier in system information, the receiving end can obtain the second identifier after detecting the system information, so that the receiving end can obtain all the identification information about the sending end according to the first identifier and the second identifier.
    Type: Grant
    Filed: June 8, 2017
    Date of Patent: February 2, 2021
    Assignee: China Academy of Telecommunications Technology
    Inventors: Qiuping Huang, Qiubin Gao, Runhua Chen, Hui Li, Tamrakar Rakesh, Yang Song, Mengjun Wang, Chuanjun Li, Xin Su, Yu Yang
  • Patent number: 10911283
    Abstract: A method of generating an uplink signal sequence, a user equipment, a base station and a computer-readable storage medium are provided. The method includes: generating an uplink signal sequence ru,v(?)(n) based on ru,v(?)(n)=ej?nru,v(n), 0?n<12, where a is configured to distinguish a terminal, an uplink signal base sequence ru,v(n)=ej?(n)?/4, where u represents a group number, and v represents an intra-group base sequence number, ?(n)?/4 represents a phase of a base sequence; performing a full traversal of multiple possible phases of the phase ?(n)?/4 on the uplink signal sequence with a length of 12, and selecting a predetermined number of uplink signal sequences with a lowest peak-to-average power ratio and a lowest cross-correlation characteristic.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: February 2, 2021
    Assignee: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Xiangli Lin, Xuejuan Gao, Tony Ekpenyong
  • Publication number: 20210029624
    Abstract: An access method and a device are provided. The access method is applied to a first wireless backhaul node and includes: determining a previous hop node of the first wireless backhaul node, the previous hop node being a home donor base station of the first wireless backhaul node or being a second wireless backhaul node; and transmitting first information to the home donor base station directly or transmitting the first information to the home donor base station via the second wireless backhaul node.
    Type: Application
    Filed: February 15, 2019
    Publication date: January 28, 2021
    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Jiamin LIU, Dajun ZHANG, Ying WANG
  • Publication number: 20210028883
    Abstract: The present disclosure provides a channel blind detection method, a signal transmission method and related devices. The channel blind detection method includes, when the quantity of times of blind detection to be performed by a terminal side device within a specific time-domain range exceeds a maximum blind detection capability, skipping, by the terminal side device, a part of blind detection occasions within the specific time-domain range, and performing channel blind detection in the remaining blind detection occasions. The maximum blind detection capability is the maximum quantity of times of blind detection performed by the terminal side device within the specific time-domain range, and the remaining quantity of times of blind detection to be performed by the terminal side device within the specific time-domain range does not exceed the maximum blind detection capability. According to the present disclosure, it is able to improve performance of the terminal side device.
    Type: Application
    Filed: March 14, 2019
    Publication date: January 28, 2021
    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventor: Lei WANG
  • Patent number: 10904846
    Abstract: Disclosed are a synchronization method and device, which are used to achieve the distinction of a synchronization system and a synchronization level of a node in a V2V communication system, thereby quickly achieving the synchronization in the V2V communication system. Provided is a synchronization method, comprising: determining a synchronization priority level of a current node; and according to the synchronization priority level of the current node, determining a synchronization sequence used by the current node and a value of a distinguishing flag bit of the current node, wherein the distinguishing flag bit is used to distinguish whether the current node belongs to a GNSS synchronization system or an eNB synchronization system.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: January 26, 2021
    Assignee: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Yuanyuan Li, Haijun Zhou, Li Zhao, Ying Peng, Jiayi Fang
  • Patent number: 10904919
    Abstract: An information feedback method, a base station, a terminal and a storage medium are provided. The information feedback method includes: sending downlink control information to a terminal, where the downlink control information includes indication information configured to instruct the terminal to perform an information feedback, and the indication information includes at least one of a feedback delay of feeding back feedback information by the terminal, an indication of whether a LBT process is performed when feeding back the feedback information by the terminal, a type of the LBT process performed when feeding back the feedback information by the terminal and a parameter configuration of the LBT process performed when feeding back the feedback information by the terminal; receiving the feedback information sent by the terminal based on the indication information in the downlink control information.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: January 26, 2021
    Assignee: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Qianqian Si, Xueming Pan, Jiaqing Wang
  • Publication number: 20210022169
    Abstract: A resource allocation method and apparatus, a base station, and UE are provided. The method includes: transmitting DCI including resource allocation indication information to UE, where the resource allocation indication information is used for indicating a resource location of a frequency domain resource allocated to the UE, the frequency domain resource is allocated by using a VRB group as allocation granularity.
    Type: Application
    Filed: March 26, 2019
    Publication date: January 21, 2021
    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventor: Lei WANG
  • Publication number: 20210021386
    Abstract: A data transmission method, a terminal device, and a network device are provided. The data transmission method includes: receiving a PDSCH; and mapping HARQ-ACK feedback information corresponding to a PDSCH with repetition transmissions at least to a first transmission position for transmission, where the first transmission position is a position corresponding to a last transmission of the repetition transmissions of the PDSCH in a semi-static HARQ-ACK codebook.
    Type: Application
    Filed: January 31, 2019
    Publication date: January 21, 2021
    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventor: Xuejuan GAO
  • Publication number: 20210022093
    Abstract: A method for obtaining a noise power and a terminal are provided. The obtaining method includes: obtaining a first power offset value of an actual automatic gain control (AGC) received power relative to a first predetermined received power within a predetermined transmission time interval (TTI); obtaining, according to a preset correspondence between a modulation mode and an AGC backoff value, a target AGC backoff value corresponding to a current modulation mode; and obtaining the noise power according to the first power offset value, the target AGC backoff value, and a current AGC received power.
    Type: Application
    Filed: March 19, 2019
    Publication date: January 21, 2021
    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Li ZHAO, Rui ZHAO, Ying PENG
  • Publication number: 20210022112
    Abstract: The preset disclosure provides a paging strategy determination method, a device, a RAN network element and a core network element, the paging policy determination method includes: receiving a PPI value sent by a core network element, wherein the PPI value is determined according to the DSCP value of the downlink packet; and determining the paging policy according to the PPI value when the UE in the RRC deactivated state receives the downlink packet.
    Type: Application
    Filed: January 11, 2019
    Publication date: January 21, 2021
    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventor: Qiang DENG
  • Patent number: 10897337
    Abstract: Disclosed in the present application are a data transmission method and device.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: January 19, 2021
    Assignee: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Xiangli Lin, Ekpenyong Tony, Xuejuan Gao
  • Patent number: 10897761
    Abstract: A data transmission method, a terminal and a base station are provided. The data transmission method includes: determining, by a terminal, data transmitted in the first TTI length and/or data transmitted in the second TTI length that are processed in a same sub-frame based on capability reported by the terminal or a predefined rule, the data including a shared channel and/or a control channel; wherein the first TTI length is less than the second TTI length.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: January 19, 2021
    Assignee: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Xuejuan Gao, Fangchen Cheng, Xueming Pan
  • Patent number: 10897715
    Abstract: Disclosed in embodiments of the present application are a communication processing method and apparatus in the tight coupling between long-term evolution and 5G.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: January 19, 2021
    Assignee: China Academy of Telecommunications Technology
    Inventors: Haiyang Quan, Chandrika Kumudinie Worrall
  • Publication number: 20210014920
    Abstract: The present disclosure provides a beam failure recovery method and a UE. The beam failure recovery method includes: performing beam failure recovery using non-contention-based random access; and performing the beam failure recovery using contention-based random access in the case that the non-contention-based random access fails.
    Type: Application
    Filed: January 31, 2019
    Publication date: January 14, 2021
    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Li CHEN, Pierre BERTRAND