Methods and devices for sending and receiving physical uplink control channel

    公开(公告)号:US11197287B2

    公开(公告)日:2021-12-07

    申请号:US16670316

    申请日:2019-10-31

    Inventor: Bingyu Qu Hao Sun

    Abstract: A method for sending a physical uplink control channel includes: generating a physical uplink control channel, where the physical uplink control channel carries a demodulation reference signal and uplink control information, the physical uplink control channel is sent on a resource element set, the resource element set occupies at least two time domain symbols in time domain, the demodulation reference signal is located on at least one time domain symbol of the resource element set, the at least one time domain symbol includes a first time domain symbol, the demodulation reference signal occupies some frequency domain subcarriers of the resource element set on the first time domain symbol, and the some frequency domain subcarriers are the same as frequency domain subcarriers that are occupied by the uplink control information and that are of the resource element set; and sending the physical uplink control channel.

    Sequence-based signal processing method and apparatus

    公开(公告)号:US11196604B2

    公开(公告)日:2021-12-07

    申请号:US16871965

    申请日:2020-05-11

    Inventor: Bingyu Qu Hao Sun

    Abstract: A sequence-based signal processing method and apparatus are provided. A sequence meeting a requirement for sending a signal by using a physical uplink control channel (PUCCH) is determined. The sequence is a sequence {fn} consisting of 12 elements, fn represents an element in the sequence {fn}, and the determined sequence {fn} is a sequence meeting a preset condition. Then, the 12 elements in the sequence {fn} are respectively mapped to 12 subcarriers, to generate a first signal, and the first signal is sent. By using the determined sequence, when the signal is sent by using the PUCCH, a low correlation between sequences can be maintained, and a relatively small peak-to-average power ratio (PAPR) value and a relatively small cubic metric (CM) value can be maintained. Therefore, a requirement of a communication application environment in which the signal is sent by using the PUCCH is met.

    Vapor Chamber, Heat Sink, and Terminal

    公开(公告)号:US20210289669A1

    公开(公告)日:2021-09-16

    申请号:US17335743

    申请日:2021-06-01

    Abstract: A vapor chamber includes a first base plate (12), a second base plate (13), and a capillary structure (15). The first base plate (12) and the second base plate (13) are disposed in a stacked manner and fastened to each other, and together form a cavity (11). The capillary structure is disposed on an inner wall of the cavity (11) and a surface of at least one support pillar (120) between the first base plate (12) and the second base plate (13), and the capillary structure (15) is configured to provide capillary force for returning liquid to a working medium. A reinforcement table (127) located in the cavity (11) is disposed between the first base plate (12) and the second base plate (13).

    Sequence determining method and apparatus

    公开(公告)号:US10979188B2

    公开(公告)日:2021-04-13

    申请号:US16566207

    申请日:2019-09-10

    Abstract: Embodiments of the present disclosure provide, among other implementations, sequence determining methods. One example method provides a sequence group, and one sequence group number is corresponding to at least two sequences, where one sequence is used for mapping to consecutive subcarriers, and at least one other sequence is used for mapping to equally-spaced subcarriers. In some embodiments of the present disclosure, as high as possible cross-correlation between a sending signal obtained after equally-spaced mapping is performed on a sequence in a sequence group can be determined, and a sending signal obtained after continuous mapping is performed on another sequence in the group.

    Uplink control information transmission method, terminal device, base station, and communications system

    公开(公告)号:US10932243B2

    公开(公告)日:2021-02-23

    申请号:US16504738

    申请日:2019-07-08

    Inventor: Yan Cheng Hao Sun

    Abstract: Embodiments of the present disclosure provide example uplink control information transmission methods, terminal devices, base stations, and systems. An example transmission method includes the following steps: First, the terminal device determines an information bit sequence of to-be-transmitted uplink control information. Then, the terminal device determines a first sequence according to the information bit sequence, where the first sequence is a linear-phase complex exponential sequence. Finally, the terminal device sends the to-be-transmitted uplink control information to the base station by using an uplink control channel, where the uplink control channel occupies N symbols, N is a positive integer, a signal carried on a symbol l of the N symbols is directly proportional to a product of the first sequence and a second sequence, and the second sequence is a cyclic shift sequence.

    Timing method for time division duplex communication, base station, and user equipment

    公开(公告)号:US10813114B2

    公开(公告)日:2020-10-20

    申请号:US16185307

    申请日:2018-11-09

    Abstract: A timing method for time division duplex communication, an uplink/downlink data scheduling method, a base station, and user equipment are provided. By determining whether grouping needs to be performed on uplink/downlink short transmission time intervals, it is determined, for different grouping requirements, whether addition of indication information to control signaling is required to indicate to user equipment an uplink short transmission time interval sequence number in an uplink short transmission time interval group for uplink data transmission or feedback to downlink data scheduling. Alternatively, addition of indication information to control signaling is not required, and uplink data transmission or feedback to downlink data scheduling is performed in an uplink short transmission time interval determined according to a default rule.

    Acknowledgement indication method for data transmission and related device

    公开(公告)号:US10735148B2

    公开(公告)日:2020-08-04

    申请号:US15940980

    申请日:2018-03-30

    Abstract: Embodiments of the present invention disclose an acknowledgement indication method for data transmission and a related device. The method includes: detecting, by a base station, whether each user equipment (UE) in an acknowledgement group transmits data, to obtain a detection result; generating, by the base station, an acknowledgement indication message according to the detection result, where the acknowledgement indication message indicates a flag bit status corresponding to each UE in the acknowledgement group, the flag bit status includes a first state or a second state, the first state indicates that the base station finds data, and the second state indicates that the base station does not find data; and sending, by the base station, the acknowledgement indication message.

    Uplink retransmitted data sending method, apparatus, and system

    公开(公告)号:US10667291B2

    公开(公告)日:2020-05-26

    申请号:US16015894

    申请日:2018-06-22

    Inventor: Hao Sun Yan Cheng

    Abstract: The present disclosure discloses an uplink retransmitted data sending method, apparatus, and system, and relates to the field of communications technologies. The method includes: receiving data transmitted on a same contention resource by different user equipments (UEs) that are in a same contention resource group; demodulating, based on a demodulation reference signal DMRS sequence carried in the data, the data sent by the UEs; and when demodulation of data sent by at least two UEs fails, scheduling, by using an uplink grant (UL-grant), the UEs whose data fails to be demodulated, to retransmit the data on a designated non-contention resource. This resolves a prior-art technical problem that uplink data retransmission fails, and improves uplink data retransmission efficiency.

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