公开(公告)号：US20200274749A1

公开(公告)日：2020-08-27

申请号：US15931620

申请日：2020-05-14

申请人： Zheng LIU ,  Xiaobo ZHANG

发明人： Zheng LIU ,  Xiaobo ZHANG

IPC分类号： H04L27/26 ,  H04L1/18 ,  H04W72/12

摘要： The present disclosure provides a method and a device in a base station used for Unlicensed Spectrum. The base station first transmits K1 radio signals in a reference time window and then receives K1 HARQ feedbacks, and performs Q1 energy detections respectively in Q1 time sub-pools on a first frequency sub-band; the K1 HARQ feedbacks are respectively used for determining whether the K1 radio signals are correctly received; a first radio signal is a radio signal of the K1 radio signals, the first radio signal carries part of bits comprised by a first bit block; a first HARQ feedback is used for determining whether the first radio signal is correctly received, HARQ feedback(s) other than the first HARQ feedback among the K1 HARQ feedbacks is(are) used for determining the Q1 time sub-pools. The present disclosure increases the chance of access to Unlicensed Spectrum and the utilization ratio of spectrum resources.

公开(公告)号：US20240223431A1

公开(公告)日：2024-07-04

申请号：US18604518

申请日：2024-03-14

申请人： Zheng LIU ,  Xiaobo ZHANG

发明人： Zheng LIU ,  Xiaobo ZHANG

IPC分类号： H04L27/26 ,  H04W56/00

CPC分类号： H04L27/2657 ,  H04L27/26025 ,  H04W56/0045

摘要： The present disclosure provides a method and a device in a communication node used for wireless communications. A communication node receives first information and second information; and transmits a first radio signal, an SCS of a subcarrier occupied by the first radio signal is equal to a first SCS; a sum of a first timing adjustment and a second timing adjustment is used to determine a transmission timing for the first radio signal, and the first timing adjustment is used to determine a transmission timing for a radio signal transmitted earlier than the first radio signal; the second timing adjustment is equal to a sum of a first sub-adjustment and a second sub-adjustment, the first information is used to determine the first sub-adjustment, and the second information is used to determine the second sub-adjustment. The present disclosure improves scheduling flexibility.

公开(公告)号：US20220386334A1

公开(公告)日：2022-12-01

申请号：US17880609

申请日：2022-08-03

申请人： Zheng LIU ,  Xiaobo ZHANG

发明人： Zheng LIU ,  Xiaobo ZHANG

IPC分类号： H04W72/12 ,  H04W24/08 ,  H04L27/26

摘要： The present application discloses a method and a device in a node for wireless communications. A node receives first information, the first information being used to determine a target cell, the target cell scheduling a characteristic cell; monitors M Control Resource Elements in a first time window, the M Control Resource Elements being occupied by a control channel candidate; a sub-band to which any of the M Control Resource Elements belongs in frequency domain belongs to a first sub-band set; a serving cell to which any sub-band comprised in the first sub-band set belongs is in the scheduling cell set; a subcarrier spacing of a subcarrier comprised in the first sub-band set is equal to a first subcarrier spacing; the first subcarrier spacing is used to determine a time length of the first time window. The present disclosure guarantees the reception of scheduling.

公开(公告)号：US20220304077A1

公开(公告)日：2022-09-22

申请号：US17837038

申请日：2022-06-10

申请人： Zheng LIU ,  Xiaobo ZHANG

发明人： Zheng LIU ,  Xiaobo ZHANG

IPC分类号： H04W74/08 ,  H04W72/04 ,  H04W52/36

摘要： Method and device in nodes used for wireless communications. A node receives first information, the first information being used to determine X candidate formats; transmits a first signal, the first signal using a first format; and transmits a second signal, the second signal using a second format; the first format is one of the X candidate formats, and the second format is also one of the X candidate formats; a first timing offset value is used to determine a transmission timing for the first signal, while a second timing offset value is used to determine a transmission timing for the second signal, where the first timing offset value is unequal to the second timing offset value; the first format relates to the first timing offset value while the second format relates to the second timing offset value. The present disclosure improves the random access performance.

公开(公告)号：US20220201562A1

公开(公告)日：2022-06-23

申请号：US17557062

申请日：2021-12-21

申请人： Zheng LIU ,  Xiaobo ZHANG

发明人： Zheng LIU ,  Xiaobo ZHANG

IPC分类号： H04W36/00 ,  H04L1/18 ,  H04W72/04

摘要： The present disclosure provides a method and device in a node used for wireless communications. A node receives a first information block, receives a first PDCCH, the first PDCCH belongs to a first search space set; transmits W bit sets, the first information block is used to determine the W bit sets; the first search space set is associated with a first control resource set, the first control resource set belongs to a first control resource pool; the first control resource pool is used to determine a first bit set out of the W bit sets, the first bit set comprises X bit subsets; the X bit subsets are respectively for X cell groups, and the first PDCCH is used for a first serving cell; the first PDCCH is used to determine a first identifier. The present disclosure guarantees the successful transmission of HARQ.

公开(公告)号：US20220086815A1

公开(公告)日：2022-03-17

申请号：US17534461

申请日：2021-11-24

申请人： Zheng LIU ,  Xiaobo ZHANG

发明人： Zheng LIU ,  Xiaobo ZHANG

IPC分类号： H04W72/04 ,  H04L27/26 ,  H04W72/12

摘要： A method and a device in a communication node used for wireless communications is disclosed in the present disclosure. The communication node first receives first information and second information; and transmits a first radio signal in a first time window; and then transmits a second radio signal; the first information is used to determine a target time window, the second radio signal occupies a second time window in time domain, and the second information is used to determine at least one of whether the second time window belongs to the target time window or a relative position relationship between the second time window and the target time window; an end of the first time window is earlier than a start of the target time window. The present disclosure helps improve the utilization ratio of resources in Grant-Free transmission.

公开(公告)号：US20210345425A1

公开(公告)日：2021-11-04

申请号：US17368861

申请日：2021-07-07

申请人： Zheng LIU ,  Xiaobo ZHANG

发明人： Zheng LIU ,  Xiaobo ZHANG

IPC分类号： H04W74/08 ,  H04W72/04 ,  H04L1/00

摘要： The present disclosure provides a method and a device for use in communication node for wireless communications. The communication node transmits a first sequence; receives first information, and the first information is used to determine X candidate time lengths; transmits a second sequence and determines whether to transmit a second radio signal; a time interval between a time for transmitting the first sequence and a time for transmitting the second sequence is not less than a target time length; a first time length is equal to one of the X candidate time lengths, and the target time length is not greater than the first time length; when the first time length is greater than 0, the first communication node randomly selects the target time length between 0 and the first time length. The present disclosure improves random access performance.

公开(公告)号：US20200275389A1

公开(公告)日：2020-08-27

申请号：US16796910

申请日：2020-02-20

申请人： Zheng LIU ,  XiaoBo ZHANG

发明人： Zheng LIU ,  XiaoBo ZHANG

IPC分类号： H04W52/36 ,  H04W4/40 ,  H04W72/04 ,  H04W52/38

摘要： The present disclosure discloses a method and a device in a communication node for wireless communications. The communication node monitors first-type information blocks in a first time window, receives a first signaling, and transmits a first radio signal; the first signaling is used for determining time-frequency resources occupied by the first radio signal; information carried by the first radio signal comprises a first difference value, a first reference power value is used for determining the first difference value, the first reference power value is a power value for a wireless transmission on sidelink; when X first-type information blocks are detected in the first time window, the X first-type information blocks respectively correspond to X first-type parameters, X is a positive integer greater than 1; the X first-type parameters are used for determining a target parameter, the target parameter is used for determining the first reference power.

公开(公告)号：US20190281592A1

公开(公告)日：2019-09-12

申请号：US16297715

申请日：2019-03-11

申请人： Zheng LIU ,  Qi JIANG ,  Xiaobo ZHANG

发明人： Zheng LIU ,  Qi JIANG ,  Xiaobo ZHANG

IPC分类号： H04W72/04

摘要： The disclosure provides a method and a device in a User Equipment (UE) and base station for unlicensed spectrum. The UE first monitors a first signaling, and then, if the first signaling is detected, monitors a second signaling, or receives a first radio signal, wherein the first signaling includes a first field; the first signaling carries first sub-information besides the first field, or the first signaling carries second sub-information besides the first field; the first field in the first signaling is used for determining whether the first sub-information or the second sub-information is carried in the first signaling; the first sub-information is used for determining a first time-frequency resource pool, time-frequency resources occupied by the second signaling belong to the first time-frequency resource pool, and the second sub-information is used for determining time-frequency resources occupied by the first radio signal. The disclosure can improve the utilization of unlicensed spectrum resources.

公开(公告)号：US20240049237A1

公开(公告)日：2024-02-08

申请号：US18379671

申请日：2023-10-13

申请人： Zheng LIU ,  Zhongzhi YANG

发明人： Zheng LIU ,  Zhongzhi YANG

IPC分类号： H04W72/21 ,  H04W72/563

CPC分类号： H04W72/21 ,  H04W72/563

摘要： Method and device for wireless communications. A node receives a first information block; the node transmits a first PUCCH; the first information block determines a first scrambling sequence; the first PUCCH carries a first bit block and a second bit block; a number of bit(s) comprised in the first bit block is not greater than 2; a sum of a number of bit(s) comprised in the first bit block and the second bit block is greater than 2; a priority index of the first bit block is equal to a first priority index, a priority index of the second bit block is equal to a second priority index, and the first priority index and the second priority index are not equal; the first bit block and the second bit block are used together to generate a first bit sequence. Present application improves the link performance of the PUCCH.