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公开(公告)号：US12068899B2
公开(公告)日：2024-08-20
申请号：US17220731
申请日：2021-04-01
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yue Zhao , Zhiheng Guo , Qiang Wu , Xingqing Cheng
CPC classification number: H04L27/2613 , H04J13/0062 , H04L27/26
Abstract: This application relates to the mobile communications field, and in particular, to a random access technology in a wireless communications system. This application provides a method for receiving a random access preamble sequence, an apparatus, and a system. In this solution, a device obtains a cyclic shift value that satisfies a high-speed movement scenario and receives a random access preamble sequence corresponding to the cyclic shift value.
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公开(公告)号：US11246131B2
公开(公告)日：2022-02-08
申请号：US16735405
申请日：2020-01-06
Applicant: Huawei Technologies Co., Ltd.
Inventor： Qiang Li , Qiang Wu , Bingyu Qu , Yongxing Zhou
Abstract: A method includes determining a type of a first subframe, where the type of the first subframe is a first-type subframe, a second-type subframe, a third-type subframe, or a fourth-type subframe, where the second-type subframe includes an uplink control channel and a downlink channel, the uplink control channel is located after the downlink channel, and there is a guard period between the uplink control channel and the downlink channel. The fourth-type subframe includes an uplink channel and a downlink control channel, the uplink channel is located after the downlink control channel, and there is a guard period between the uplink channel and the downlink control channel. The method also includes transmitting data in the first subframe according to the type of the first subframe.
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公开(公告)号：US10985858B2
公开(公告)日：2021-04-20
申请号：US16345148
申请日：2016-10-26
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yue Zhao , Zhiheng Guo , Qiang Wu , Xingqing Cheng
Abstract: This application relates to the mobile communications field, and in particular, to a random access technology in a wireless communications system. This application provides a method for sending a random access preamble sequence, an apparatus, and a system. In this solution, a terminal device obtains a cyclic shift value that satisfies a high-speed movement scenario and sends a random access preamble sequence corresponding to the cyclic shift value. Impact brought by the high-speed movement scenario is considered when the random access preamble sequence is determined, thereby avoiding interference between terminal devices in the high-speed scenario.
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公开(公告)号：US10554467B2
公开(公告)日：2020-02-04
申请号：US16055353
申请日：2018-08-06
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jianqin Liu , Jianghua Liu , Qiang Wu , Yongxing Zhou
Abstract: The present invention provides a signal sending apparatus, a signal detection apparatus, a signal sending and detection system, a signal sending method, and a signal detection method. The apparatus determines a time unit that is in each time window and that is used to transmit a synchronization signal, and transmits the synchronization signal in the determined time unit in each time window. Therefore, a synchronization signal is always located in a time unit that has a fixed location in each time window, so that a device at a receive end needs to perform detection only in a fixed time unit in each time window, thereby reducing complexity of designing and detecting the synchronization signal.
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公开(公告)号：US10517091B2
公开(公告)日：2019-12-24
申请号：US15659279
申请日：2017-07-25
Applicant: Huawei Technologies Co., Ltd.
Inventor： Qiang Li , Qiang Wu , Bingyu Qu , Yongxing Zhou
Abstract: The method includes determining a type of a first subframe, where the type of the first subframe is a first-type subframe, a second-type subframe, a third-type subframe, or a fourth-type subframe, where the second-type subframe includes an uplink control channel and a downlink channel, the uplink control channel is located after the downlink channel, and there is a guard period between the uplink control channel and the downlink channel. The fourth-type subframe includes an uplink channel and a downlink control channel, the uplink channel is located after the downlink control channel, and there is a guard period between the uplink channel and the downlink control channel. The method also includes transmitting data in the first subframe according to the type of the first subframe.
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Patent Agency Ranking
公开(公告)号：US20190254028A1
公开(公告)日：2019-08-15
申请号：US16393181
申请日：2019-04-24
Applicant: Huawei Technologies Co., Ltd.
Inventor： Qiang Li , Qiang Wu , Bingyu Qu , Yongxing Zhou
Abstract: A method includes determining a type of a first subframe, where the type of the first subframe is a first-type subframe, a second-type subframe, a third-type subframe, or a fourth-type subframe, where the second-type subframe includes an uplink control channel and a downlink channel, the uplink control channel is located after the downlink channel, and there is a guard period between the uplink control channel and the downlink channel. The fourth-type subframe includes an uplink channel and a downlink control channel, the uplink channel is located after the downlink control channel, and there is a guard period between the uplink channel and the downlink control channel. The method also includes transmitting data in the first subframe according to the type of the first subframe.
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公开(公告)号：US10271323B2
公开(公告)日：2019-04-23
申请号：US15599260
申请日：2017-05-18
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jianqin Liu , Kunpeng Liu , Qiang Wu , Jianghua Liu
Abstract: In a system and method of control channel transmission in the communications field, REs, except those used for transmitting a DMRS, are grouped in each physical resource block pair of L physical resource block pairs. The L physical resource block pairs are determined to be used to transmit a control channel into N eREGs. The number of valid REs are calculated except other overheads in each eREG of the N eREGs. Each of the eCCEs are mapped onto M eREGs according to the number of valid REs included in each eREG of the N eREGs of each physical resource block pair. The eCCE is sent in the REs included in the eREG.
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公开(公告)号：US20190020389A1
公开(公告)日：2019-01-17
申请号：US16125276
申请日：2018-09-07
Applicant: Huawei Technologies Co., Ltd.
Inventor： Kunpeng Liu , Qiang Wu , Leiming Zhang
IPC: H04B7/0456 , H04B7/0417 , H04L5/00
CPC classification number: H04B7/0486 , H04B7/0417 , H04B7/06 , H04B7/0626 , H04L5/0026
Abstract: A transmit diversity method, a device, and a system are described herein. The method includes: measuring, by a second network device, channel state information based on a pilot signal, and sending rank index information and precoding matrix index information to a first network device based on the channel state information; receiving, by the first network device, the rank index information and the precoding matrix index information that are sent by the second network device; determining a diversity coding scheme based on the rank index information; determining a precoding matrix based on the precoding matrix index information; and performing transmission processing on to-be-transmitted data based on the diversity coding scheme and the precoding matrix.
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公开(公告)号：US20180242370A1
公开(公告)日：2018-08-23
申请号：US15928496
申请日：2018-03-22
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
Inventor： Yue Zhao , Zhiheng Guo , Qiang Wu
IPC: H04W74/08
CPC classification number: H04W74/0833 , H04L5/0021 , H04L5/0053 , H04L27/2613 , H04L27/2655 , H04L27/2688 , H04L27/2692 , H04W74/006
Abstract: Embodiments of the present application provide a random access sequence generation method, and an apparatus. The method includes: generating, by a base station, notification signaling, where the notification signaling includes indication information, the indication information is used to instruct user equipment UE to select a shift sequence number from a range of 0 to ( n shift RA n group RA + n _ shift RA + n = shift RA + n ≡ shift RA - 1 ) , the shift sequence number is an integer, nshiftRA is a quantity of UE candidate sequence shifts in a group, ngroupRA is a quantity of groups, nshiftRA is a quantity of UE candidate sequence shifts in the last length that is insufficient for a group, nshiftRA is a quantity of UE candidate sequence shifts in first remaining sequence shifts, and is a quantity of UE candidate sequence shifts in second remaining sequence shifts; and sending, by the base station, the notification signaling to the UE, so that the UE generates a random access sequence according to the indication information.
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公开(公告)号：US20180242356A1
公开(公告)日：2018-08-23
申请号：US15958148
申请日：2018-04-20
Applicant: Huawei Technologies Co., Ltd.
IPC: H04W74/08
CPC classification number: H04W74/08 , H04L1/1607 , H04L1/1893 , H04L1/1896
Abstract: Embodiments provide a data transmission method and an apparatus. The method includes: determining, by a terminal device from the initial transmission resource block set by means of contention, an initial transmission resource block used by the terminal device to initially transmit to-be-transmitted data, and initially transmitting the to-be-transmitted data by using the initial transmission resource block; receiving, by the terminal device, a negative acknowledgement that is sent by the network device and that is for the to-be-transmitted data; determining, by the terminal device from the retransmission resource block set, a retransmission resource block used to retransmit the to-be-transmitted data; and retransmitting, by the terminal device, the to-be-transmitted data by using the retransmission resource block.
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