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公开(公告)号：US20210360617A1
公开(公告)日：2021-11-18
申请号：US17390616
申请日：2021-07-30
Applicant: Huawei Technologies Co., Ltd.
Inventor： Qiong JIA , Jiayin ZHANG , Ji WU
Abstract: A signal transmission method and apparatus are described. A network device indicates an uplink transmission resource to a terminal by using first indication information, and the terminal transmits a PUCCH and a first signal on the uplink transmission resource indicated by the first indication information. The uplink transmission resource is within an unlicensed frequency band, and the first signal includes one or more of a PUSCH, an SRS, and a PRACH. Thus, if resources required for PUCCH transmission are fewer than resources included in one interlace in the unlicensed frequency band, a remaining resource in the interlace may be used to transmit the first signal.
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公开(公告)号：US20210219341A1
公开(公告)日：2021-07-15
申请号：US17213593
申请日：2021-03-26
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Abstract: Embodiments of this application provide a method for transmitting indication information. The method includes: A first device generates first indication information, where the first indication information includes information about a format of a channel occupancy time of the first device, the channel occupancy time of the first device includes one or more sub-periods, the one or more sub-periods are used for uplink transmission, downlink transmission, flexible transmission, or transmission interruption, and a sub-period for transmission interruption can be used for transmission by another device other than the first device; and the first device sends the first indication information. In an indication manner described in the embodiments of this application, a device may obtain a format in a COT in advance, thereby reducing blind detection overheads, or may sleep in advance, to reducing energy consumption.
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公开(公告)号：US20210176748A1
公开(公告)日：2021-06-10
申请号：US17172432
申请日：2021-02-10
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Abstract: This application provides a system information transmission method, and a related device and system. The method includes: receiving, by a network device, a system information request sent by one or more terminals; transmitting, by the network device, system information SI, where SI transmitted for one terminal has a quasi-co-location QCL with a portion of downlink signal blocks, and the portion of downlink signal blocks are a subset of all downlink signal blocks transmitted by the network device; and sending, by the network device, first indication information, where the first indication information indicates a mapping between a downlink signal block and SI, and the downlink signal block has a QCL with the SI corresponding to the downlink signal block. The foregoing solution can reduce system overheads and improve resource utilization.
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公开(公告)号：US20190326968A1
公开(公告)日：2019-10-24
申请号：US16457804
申请日：2019-06-28
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Qiong JIA , Jun LUO , Ji WU , Yingpei LIN
Abstract: This application discloses a beam training method, a communication device, a chip system, and a storage medium. The method includes: performing, by a transmit device, clear channel assessment on sectors corresponding to an antenna of the transmit device; and sending, by the transmit device in a sector whose result of clear channel assessment is idle, a training signal to a receive device, where the training signal is used to perform beamforming training on the antenna. With this solution, beamforming training efficiency can be improved and resource utilization can be increased.
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公开(公告)号：US20220279576A1
公开(公告)日：2022-09-01
申请号：US17695332
申请日：2022-03-15
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Qiong JIA , Jun ZHU , Ji WU , Kwang-Cheng CHEN
Abstract: This application discloses a wireless communication method, including: receiving, by a network device, uplink transmission of a first terminal in first duration of channel occupancy duration of the first terminal, where the channel occupancy duration of the first terminal further includes second duration, and the second duration is later than the first duration; and performing, by the network device, downlink transmission in the second duration, where a sum of the first duration and the second duration is less than or equal to the channel occupancy duration of the first terminal. This application further discloses a network device and a terminal that correspond to the wireless communication method. By applying the method and devices, a resource obtained through contention by a terminal applied to an unlicensed frequency band can be properly used, to improve operating efficiency of the unlicensed frequency band.
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Patent Agency Ranking
公开(公告)号：US20220264641A1
公开(公告)日：2022-08-18
申请号：US17733246
申请日：2022-04-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Qiong JIA , Jiayin ZHANG , Ji WU
Abstract: Embodiments provide a HARQ feedback method and apparatus, to resolve a current-technology problem that subsequent transmission is affected because a terminal device cannot provide a HARQ feedback in time due to uncertainty of LBT. The method includes: A first terminal device performs LBT, and sends HARQ information of a plurality of second terminal devices on a channel resource on which the LBT succeeds, so that for different second terminal devices, the first terminal device does not perform LBT for a plurality of times, thereby reducing LBT overheads, and overcoming a problem that HARQ information corresponding to some second terminal devices cannot be sent in time due to an LBT failure.
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公开(公告)号：US20210068154A1
公开(公告)日：2021-03-04
申请号：US16950834
申请日：2020-11-17
Applicant: Huawei Technologies Co., Ltd.
Abstract: This application provides a channel sensing method, a related device, and a system. The method includes: performing, by a sending device, LBT; and sending, by the sending device, a first channel occupancy signal after the LBT succeeds, where the first channel occupancy signal is used to indicate, to a first receiving device that receives the first channel occupancy signal, a to-be-protected channel occupancy time on a channel occupied by the sending device after the LBT succeeds. According to the foregoing solution, a collision between devices that need to perform transmission can be avoided, thereby improving communication efficiency.
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公开(公告)号：US20200374940A1
公开(公告)日：2020-11-26
申请号：US16991227
申请日：2020-08-12
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Abstract: Embodiments of this application provide a contention window management method applied to an unlicensed band, including: sending, by a sending device, one or more data packets to one or more receiving devices in one reference time unit or a plurality of reference time units, where the one or more data packets occupy a first bandwidth; receiving, by the sending device from the one or more receiving devices, a hybrid automatic repeat request HARQ or HARQs for the one or more data packets; and determining, by the sending device, a contention window CW size of a second bandwidth with reference to the HARQ or HARQs for the one or more data packets. According to the method provided in this application, contention window CW update can be determined based on a HARQ feedback for a data packet, to improve communication efficiency.
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公开(公告)号：US20190190570A1
公开(公告)日：2019-06-20
申请号：US16278404
申请日：2019-02-18
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Li Yan , Yan Long , Ji WU , Yingpei LIN
IPC: H04B7/0452 , H04B7/06
CPC classification number: H04B7/0452 , H04B7/04 , H04B7/0617 , H04B7/0619
Abstract: Embodiments of this application provide a beamforming training method, an initiating device, and a responding device. The method includes: transmitting, by an initiating device, codeword indication information to each responding device in a plurality of responding devices, where codeword indication information received by a first responding device in the plurality of responding devices is used to indicate a first codeword assigned by the initiating device to the first responding device, the first codeword is used to encode a beamforming training signal transmitted between the initiating device and the first responding device, and codewords assigned to different responding devices in the plurality of responding devices are orthogonal to each other; and performing, by the initiating device, beamforming training simultaneously with the plurality of responding devices based on a plurality of codewords assigned to the plurality of responding devices.
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公开(公告)号：US20220174624A1
公开(公告)日：2022-06-02
申请号：US17673495
申请日：2022-02-16
Applicant: Huawei Technologies Co., Ltd.
Inventor： Ji WU , Jiayin ZHANG , Qiong JIA
Abstract: An apparatus and method for determining a control information indication are provided, wherein resource usage efficiency of physical broadcast channels can be improved. First information, which is sent by a network device, is received for indicating control information. The first information is used to indicate the number of symbols occupied by a control resource set (CORESET 0) in a time domain and a first offset of the CORESET 0 in a frequency domain. A time-frequency resource position of the CORESET 0 is determined based on the first information and a preset subcarrier spacing. Downlink control information at the time-frequency resource position of the CORESET 0 is received.
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