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公开(公告)号：US11432311B2
公开(公告)日：2022-08-30
申请号：US16760335
申请日：2018-10-31
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xiaocui Li , Kai Xu
Abstract: A resource allocation method and apparatus, and a system include sending, by a network device, first information to a user equipment, where the first information is for indicating uplink resources corresponding to autonomous uplink transmission performed by the user equipment, and sending, by the network device, second information to the user equipment, where the second information is for indicating a resource that is in the uplink resources and that is used by the user equipment to perform autonomous uplink transmission.
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公开(公告)号：US11071143B2
公开(公告)日：2021-07-20
申请号：US16488804
申请日：2017-06-12
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xiaocui Li , Kai Xu
Abstract: A data sending method includes determining, by user equipment, a narrowband time-frequency resource scheduled by a base station. The method further includes performing, by the user equipment, clear channel assessment CCA channel detection on the narrowband time-frequency resource to obtain a channel energy value of the narrowband time-frequency resource. The method further includes determining, by the user equipment, whether the channel energy value is less than a preset energy threshold. When the channel energy value is less than the preset energy threshold, the method includes sending, by the user equipment, uplink data to the base station on the narrowband time-frequency resource.
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公开(公告)号：US20210185547A1
公开(公告)日：2021-06-17
申请号：US17057462
申请日：2019-05-21
Applicant: Huawei Technologies Co., Ltd.
Inventor： Peiyao Zhao , Zhaocheng Wang , Kai Xu , Hongcheng Zhuang , Yanliang Sun , Lili Zhang
Abstract: A communication method includes receiving first beam feedback information from a wide beam terminal, where the first beam feedback information includes information about a first wide beam and information about M wide beams whose signal quality meets a first condition, receiving second beam feedback information from a narrow beam terminal, where the second beam feedback information includes information about a second wide beam and information about N wide beams whose signal quality meets a second condition, receiving, from the narrow beam terminal, information about a first narrow beam, where the first narrow beam is a narrow beam covered by the second wide beam, and determining, based on the first beam feedback information, the second beam feedback information, and the information about the first narrow beam, whether to transmit downlink data to the wide beam terminal and the narrow beam terminal.
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公开(公告)号：US10959254B2
公开(公告)日：2021-03-23
申请号：US16077707
申请日：2016-03-31
Applicant: Huawei Technologies Co., Ltd.
Inventor： Kai Xu , Xiaocui Li
Abstract: A radio communications method, a base station, and a terminal, where the base station sends downlink control information to the terminal, where the downlink control information includes uplink scheduling indication information, and the uplink scheduling indication information instructing the terminal to send uplink data in a plurality of uplink subframes on at least one unlicensed carrier such that the terminal sends uplink data in a plurality of uplink subframes on one or more corresponding unlicensed carriers based on the uplink scheduling indication information, thereby implementing scheduling, using uplink scheduling indication information in one piece of downlink control information, of a plurality of uplink subframes to perform uplink transmission. This increases a data volume in data transmission while effectively reducing scheduling signaling overheads.
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公开(公告)号：US10945151B2
公开(公告)日：2021-03-09
申请号：US16464050
申请日：2017-04-26
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yanliang Sun , Bin Liu , Kai Xu
Abstract: A data transmission rate control terminal device receives beam indication information and scheduling information from a base station. The terminal device determines at least one beam based on a set of N candidate beam pair links (BPLs). The terminal device determines second modulation and coding indication information according to first modulation and coding indication information, and the terminal device transmits data on the at least one beam according to resource indication information and the second modulation and coding indication information.
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Patent Agency Ranking
公开(公告)号：US10819465B2
公开(公告)日：2020-10-27
申请号：US15750803
申请日：2015-12-15
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Kai Xu
Abstract: Methods for transmitting a channel state information-reference signals (CSI-RS) and a base station are provided, where the example method includes aggregating, by the base station, first configuration modes of K CSI-RSs to form a second configuration mode of the CSI-RSs, where K is an integer greater than or equal to 2, where each of the first configuration modes is a configuration mode of X ports, where a value of X is 2, 4, or 8, and where the first configuration mode includes a position of a resource element corresponding to each of the X ports. The second configuration mode is a configuration mode of X*K ports, and the second configuration mode includes a position of a resource element corresponding to each of the X*K ports. The method further includes sending, by the base station, a CSI-RS to user equipment UE using the second configuration mode of the CSI-RSs.
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公开(公告)号：US20200322894A1
公开(公告)日：2020-10-08
申请号：US16881867
申请日：2020-05-22
Applicant: Huawei Technologies Co., Ltd.
Inventor： Kai Xu , Liwen Zhang , Lin Zhou , Bo Cheng
Abstract: An uplink control method, includes: determining a downlink path loss based on a first reference signal receive power that is of a serving cell in which the terminal device is located and that is obtained through measurement; receiving a first transmit power and a second transmit power that are sent by the base station; and if the first reference signal receive power is greater than or equal to a preset threshold, obtaining, by the terminal, an uplink transmit power of the terminal in a first network; or if the first reference signal receive power is less than a preset threshold, obtaining, by the terminal, an uplink transmit power of the terminal in the first network.
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公开(公告)号：US20190319688A1
公开(公告)日：2019-10-17
申请号：US16345566
申请日：2016-10-28
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xiaodong Sun , Richard Stirling-Gallacher , Kai Xu , Yanliang Sun
Abstract: The present invention provides an information transmission method, an access network device, and a terminal device. The method includes: sending, by an access network device, a CSI-RS configuration parameter to UE; and receiving, by the access network device after sending a CSI-RS signal at each level to the UE based on a quantity of CSI-RS signals at each level, a beamforming parameter at each level that is reported by the UE for the CSI-RS signal at each level. Therefore, accuracy of a beam direction reported to the access network device is improved.
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公开(公告)号：US10361823B2
公开(公告)日：2019-07-23
申请号：US15566934
申请日：2015-05-15
Applicant: Huawei Technologies Co., Ltd.
Inventor： Kai Xu
Abstract: A method and an apparatus for transmitting uplink data in a licensed-assisted access (LAA) system are provided. The method includes: receiving mode configuration indication information sent by a network device, where the mode configuration indication information is used to indicate that a synchronous hybrid automatic repeat request (HARQ) mode and an asynchronous HARQ mode are configured for uplink transmission of user equipment on an unlicensed carrier; and performing uplink transmission on the unlicensed carrier using the synchronous HARQ mode or the asynchronous HARQ mode and according to the mode configuration indication information.
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50.发明申请公开(公告)号：US20190159252A1
公开(公告)日：2019-05-23
申请号：US16099001
申请日：2016-05-04
Applicant: Huawei Technologies Co., Ltd.
Inventor： Kai Xu , Xiaocui Li
Abstract: An uplink transmission method based on a licensed-assisted access (LAA) system, and an apparatus, where the method includes reserving, for a transmission burst transmitted on an unlicensed carrier, at least one single-carrier frequency-division multiple access (SC-FDMA) symbol in a subframe of an uplink transmission burst corresponding to the transmission burst, where in the reserved at least one SC-FDMA symbol, user equipment (UE) accesses a channel using a listen-before-talk (LBT) access mechanism. Hence, a time gap for accessing the channel through LBT can be reserved for another UE in the uplink transmission burst. This improves a probability of successfully accessing the channel by another UE such that a plurality of UEs in an LAA communications system can perform uplink multiplexing.
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