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公开(公告)号:US20220231898A1
公开(公告)日:2022-07-21
申请号:US17657071
申请日:2022-03-29
Applicant: Huawei Technologies Co., Ltd.
Inventor: Chao Li , Fuqiang Zhang , Zhengzheng Xiang , Pu Yuan
Abstract: This application relates to a communication method and apparatus, and may be applied to the internet of vehicles, for example, V2X, LTE-V, and V2V, or may be used in fields such as intelligent driving and intelligent connected vehicles. A first resource is determined in a first resource set, and a jth synchronization signal block in N synchronization signal blocks is sent on a jth candidate resource in N candidate resources. The first resource set includes M groups, and an ith group in the M groups includes X candidate resources. M×X candidate resources included in the first resource set may be used to transmit a synchronization signal block. Each of the N synchronization signal blocks occupies Y symbols in time domain, where Y is an integer greater than or equal to 5. The first resource includes the N candidate resources, and the N candidate resources belong to one or more groups in the M groups.
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公开(公告)号:US20220224452A1
公开(公告)日:2022-07-14
申请号:US17657023
申请日:2022-03-29
Applicant: Huawei Technologies Co., Ltd.
Inventor: Haining Huang , Chao Li
Abstract: This application provides a feedback information transmission method and apparatus. The method includes: obtaining, by a first terminal device, a first resource used to transmit a sidelink HARQ and a second resource used to transmit a downlink HARQ, where the sidelink HARQ is a HARQ corresponding to sidelink data sent by the first terminal device, and the downlink HARQ is a HARQ corresponding to downlink data that is received by the first terminal device from a network device; and when the first resource and the second resource overlap in time domain, sending feedback information to the network device on a third resource based on a priority of the sidelink HARQ and a first threshold, where the feedback information includes the sidelink HARQ and/or the downlink HARQ, and the first threshold may be used to represent a priority of a downlink service type.
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公开(公告)号:US11356957B2
公开(公告)日:2022-06-07
申请号:US16503078
申请日:2019-07-03
Applicant: Huawei Technologies Co., Ltd.
Inventor: Xingwei Zhang , Shulan Feng , Guanglong Du , Chao Li , Jie Shi
Abstract: Embodiments of this application provide an uplink power control method and a terminal. The method includes: obtaining, by a terminal, a power control impact factor, where the power control impact factor includes at least one of the following: beamforming information, a subcarrier spacing, a time length, or a service type; determining, by the terminal, a transmit power of an uplink channel based on the power control impact factor; and sending, by the terminal, the uplink channel at the transmit power of the uplink channel. The embodiments can improve uplink power control precision.
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公开(公告)号:US11197227B2
公开(公告)日:2021-12-07
申请号:US15568350
申请日:2015-05-15
Applicant: Huawei Technologies Co., Ltd.
Abstract: Embodiments of the present invention discloses a method and an apparatus for selecting a relay in D2D communication. The method includes: determining, by a relay selection device, link quality of a first link of each candidate relay UE in a candidate relay UE list, where the candidate relay UE list includes at least one candidate relay UE, and the first link of each candidate relay UE is a radio link between each candidate relay UE and a base station; and determining target relay UE from the candidate relay UE list according to the link quality of the first link of each candidate relay UE in the candidate relay UE list, where the target relay UE is used for relaying data transmitted between first UE and the base station.
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公开(公告)号:US20210329601A1
公开(公告)日:2021-10-21
申请号:US17360861
申请日:2021-06-28
Applicant: Huawei Technologies Co., Ltd.
Inventor: Chao Li
Abstract: Embodiments of this application may be applied to the internet of vehicles, for example, V2X, LTE-V, and V2V, or may be applied to fields such as intelligent driving, and an intelligent and connected vehicle. The first device determine a first frequency domain resource, where the first frequency domain resource is a frequency domain resource occupied by a data channel, and a frequency bandwidth of the first frequency domain resource is N frequency domain units; determining a second frequency domain resource based on a frequency bandwidth of a first channel and the first frequency domain resource, where the frequency bandwidth of the first channel is M frequency domain units, and the second frequency domain resource is a subset of the first frequency domain resource, where M≤N, and M and N are positive integers; and sending, by the first device, the first channel on the second frequency domain resource.
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公开(公告)号:US11147022B2
公开(公告)日:2021-10-12
申请号:US16577965
申请日:2019-09-20
Applicant: Huawei Technologies Co., Ltd.
Inventor: Zhe Liu , Xingwei Zhang , Chao Li , Jie Shi
Abstract: When a transmission overlap between uplink carriers of at least two PUCCH groups exists in time domain, obtaining, by the terminal device, minimum reserved power of each PUCCH group based on transmission duration and/or transmission content; during transmission of uplink information, transmitting the uplink information after reducing power of an uplink carrier of each PUCCH group based on maximum transmit power and minimum reserved power of the uplink carrier of each PUCCH group, where transmit power of the uplink carrier after power reduction cannot be lower than the minimum reserved power; and if power on an overlapping part of an uplink carrier of a first PUCCH group is lower than minimum reserved power of the first PUCCH group, discarding information on the overlapping part of the uplink carrier of the first PUCCH group.
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公开(公告)号:US11064465B2
公开(公告)日:2021-07-13
申请号:US16578977
申请日:2019-09-23
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor: Chao Li , Xingwei Zhang , Jie Shi , Zhe Liu
Abstract: A transmit end obtains a frequency hopping parameter and resource allocation information of a to-be-transmitted message, where the frequency hopping parameter includes at least one of bandwidth part indication information, beam indication information, reference signal configuration information, subcarrier spacing indication information, transmission waveform indication information, slot type indication information, channel type indication information, or transmission carrier indication information. The transmit end determines, based on the resource allocation information and the frequency hopping parameter, a physical resource used to send the to-be-transmitted message, where the physical resource includes information about a frequency domain resource on which the to-be-transmitted message is mapped in at least one time unit. The transmit end sends the to-be-transmitted message by using the physical resource.
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公开(公告)号:US20210204238A1
公开(公告)日:2021-07-01
申请号:US17171492
申请日:2021-02-09
Applicant: Huawei Technologies Co., Ltd.
Abstract: According to the method and the apparatus, a first device generates a first synchronization sequence and/or a second synchronization sequence, where the first synchronization sequence is different from any sequence of a third synchronization sequence set, and/or the second synchronization sequence is different from any sequence of a fourth synchronization sequence set.
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公开(公告)号:US10820302B2
公开(公告)日:2020-10-27
申请号:US16127846
申请日:2018-09-11
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor: Xingwei Zhang , Chao Li
Abstract: A resource reuse apparatus, user equipment, and a resource reuse method are disclosed. The method includes: monitoring, by first user equipment, idle resources so as to obtain a first idle resource set; claiming, in a first cycle, to use a first resource, where the first resource is a resource in the first idle resource set; determining whether the first resource exists in a first claimed resource set, where the first claimed resource set is a set of resources that are claimed to be used by another user equipment except the first user equipment; and if the first resource exists in the first claimed resource set, claiming, in a second cycle, to use a second resource, where the second resource is a resource, in the first idle resource set, that is different from the first resource; or reclaiming a resource after at least one cycle following the first cycle.
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公开(公告)号:US10820288B2
公开(公告)日:2020-10-27
申请号:US15927098
申请日:2018-03-21
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor: Chao Li , Xingwei Zhang , Shulan Feng
Abstract: Embodiments of the present invention provide a synchronization method, user equipment, and a base station. The synchronization method includes: obtaining, by user equipment, synchronization information, where the synchronization information includes at least one of the following information: synchronization source selection parameter information, synchronization source indication information, or synchronization source priority information; receiving, by the user equipment, a first synchronization signal sent by at least one synchronization source; and determining, by the user equipment, a synchronization reference source according to the synchronization information and the first synchronization information. In the embodiments of the present invention, the synchronization information is obtained, and the synchronization reference source is determined according to the synchronization information and the synchronization signal of the at least one synchronization source, so that synchronization can be implemented.
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