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公开(公告)号：US20200280943A1
公开(公告)日：2020-09-03
申请号：US16874746
申请日：2020-05-15
Applicant: Huawei Technologies Co., Ltd.
Inventor： Feng Yu , Haifeng Yu , Bo Lin , Guangwei Yu , Feng Gao
Abstract: A time synchronization method and an apparatus are disclosed. The method includes: receiving, by a terminal device, a first time sent by an access network device; obtaining a first transmission delay; obtaining a fourth time based on the first transmission delay and the first time; and synchronizing a time of the terminal device based on the fourth time.
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2.发明授权公开(公告)号：US10693624B2
公开(公告)日：2020-06-23
申请号：US15967371
申请日：2018-04-30
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Tong Ji , Yiling Wu , Guangwei Yu , Robert William Young , Brian Martin Gaffney
Abstract: The present invention relates to the field of wireless communications technologies. In a receiving device, a receiving module receives a synchronization signal including a first signal and a second signal. The first signal includes N1 generalized ZC sequences, and the second signal includes N2 generalized ZC sequences. The second signal is used to distinguish different cells or different cell groups. There are at least two generalized ZC sequences with different root indexes in (N1+N2) generalized ZC sequences. A processing module performs a first sliding correlation operation and a second sliding correlation operation on the synchronization signal, and performs symbol timing synchronization according to a relationship between a sliding correlation peak generated when a sliding correlation is performed on the N1 generalized ZC sequences and a sliding correlation peak generated when a sliding correlation is performed on the N2 generalized ZC sequences.
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公开(公告)号：US20190230552A1
公开(公告)日：2019-07-25
申请号：US16369192
申请日：2019-03-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Feng Yu , Haifeng Yu , Xin Xiong , Guangwei Yu
Abstract: A buffer status report processing method and an apparatus are disclosed. A network device determines a logical channel or a logical channel group for which a separate buffer status report BSR needs to be reported, and sends separate-BSR reporting indication information. A terminal device receives the separate-BSR reporting indication information sent by the network device, and reports the separate BSR for the logical channel or the logical channel group indicated in the separate-BSR reporting indication information. The network device receives the separate BSR reported by the terminal device, and determines, based on the separate BSR, uplink buffer data amount information corresponding to the logical channel or the logical channel group. According to the BSR processing method, resource scheduling accuracy of the network device is improved.
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公开(公告)号：US10194420B2
公开(公告)日：2019-01-29
申请号：US14991694
申请日：2016-01-08
Applicant: Huawei Technologies Co., Ltd.
Inventor： Weiliang Zhang , Guangwei Yu , Zhijun Li , Yiling Wu , Jianbing Yang
Abstract: Embodiments of the disclosure provide a communication method and an apparatus thereof. The method includes: generating a first signal; and sending the first signal to a receiver over a first channel, where the first channel is one of multiple channels in a first band for narrowband communication, and at least a part of the first band is located in a guard band of a radio access network RAN. In the embodiments of the disclosure, a spectrum resource of a guard band of a RAN is used to establish a spectrum resource applicable to narrowband communication, thus improving spectrum utilization.
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公开(公告)号：US10681737B2
公开(公告)日：2020-06-09
申请号：US15659524
申请日：2017-07-25
Applicant: Huawei Technologies Co., Ltd.
Inventor： Song Zhu , Guangwei Yu , Yiling Wu , Weiliang Zhang
Abstract: Embodiments of the present disclosure provide a random access method, a terminal, and a base station. The method includes: receiving, by a terminal (UE), configuration information of random access resources from a base station, where the configuration information of the random access resource includes: configuration information of a first random access resource received from the base station using a system broadcast and configuration information of a second random access resource received from the base station by using downlink control information (DCI); selecting, by the UE, a random access resource from the first random access resource and the second random access resource according to a random access rule and the configuration information of the random access resources; and initiating, by the UE, random access according to the selected random access resource.
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Patent Agency Ranking
公开(公告)号：US20190253878A1
公开(公告)日：2019-08-15
申请号：US16397648
申请日：2019-04-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Haifeng Yu , Feng Yu , Guangwei Yu , Wurong Zhang
CPC classification number: H04W8/24 , H04W16/14 , H04W24/10 , H04W36/08 , H04W72/0453 , H04W74/0808 , H04W76/27
Abstract: Embodiments of the present invention relate to the field of communications technologies, and provide a spectrum resource indication method, an apparatus, and a system, to improve data transmission efficiency. The method includes: obtaining, by an access network device, a spectrum resource supporting capability of a terminal device and a service requirement of the terminal device; determining, by the access network device, spectrum resource information for the terminal device based on the spectrum resource supporting capability of the terminal device and the service requirement of the terminal device; and sending, by the access network device, a spectrum resource indication message to the terminal device, where the spectrum resource indication message is used to indicate the spectrum resource information.
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公开(公告)号：US20180027482A1
公开(公告)日：2018-01-25
申请号：US15719700
申请日：2017-09-29
Applicant: Huawei Technologies Co, Ltd.
Inventor： Zhe Jin , Guangwei Yu , Zhihu Luo
Abstract: Embodiments of the present invention provide a method for indicating a physical cell identifier and an apparatus, and relate to the field of communications technologies. The method includes determining, by the terminal device according to a first broadcast message sent by the base station, a PCI of a target cell in which the terminal device is located and determining a first scrambling code according to the PCI of the target cell. The method also includes determining an extended PCI of the target cell according to a second broadcast message sent by the base station and the first scrambling code.
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公开(公告)号：US20170325267A1
公开(公告)日：2017-11-09
申请号：US15659524
申请日：2017-07-25
Applicant: Huawei Technologies Co., Ltd.
Inventor： Song Zhu , Guangwei Yu , Yiling Wu , Weiliang Zhang
Abstract: Embodiments of the present disclosure provide a random access method, a terminal, and a base station. The method includes: receiving, by a terminal (UE), configuration information of random access resources from a base station, where the configuration information of the random access resource includes: configuration information of a first random access resource received from the base station using a system broadcast and configuration information of a second random access resource received from the base station by using downlink control information (DCI); selecting, by the UE, a random access resource from the first random access resource and the second random access resource according to a random access rule and the configuration information of the random access resources; and initiating, by the UE, random access according to the selected random access resource.
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9.发明授权公开(公告)号：US11736267B2
公开(公告)日：2023-08-22
申请号：US16892691
申请日：2020-06-04
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Tong Ji , Yiling Wu , Guangwei Yu , Robert William Young , Brian Martin Gaffney
CPC classification number: H04L7/041 , H04J11/0069 , H04J13/0062 , H04L27/2662 , H04L27/2663 , H04W56/00 , H04W56/001 , H04L27/2657 , H04L27/2671 , H04W4/70
Abstract: The present disclosure relates to the field of wireless communications technologies, relates to a signal sending device, a signal receiving device, a symbol timing synchronization method, and a system, and resolves a problem that complexity of symbol timing synchronization performed by a terminal with relatively low crystal oscillator accuracy is high. In a receiving device, a receiving module receives a synchronization signal including a first signal and a second signal. The first signal includes N1 generalized ZC sequences, and the second signal includes N2 generalized ZC sequences. The second signal is used to distinguish different cells or different cell groups. There are at least two generalized ZC sequences with different root indexes in (N1+N2) generalized ZC sequences. A processing module performs a first sliding correlation operation and a second sliding correlation operation on the synchronization signal, and performs symbol timing synchronization according to a relationship between a sliding correlation peak generated when a sliding correlation is performed on the N1 generalized ZC sequences and a sliding correlation peak generated when a sliding correlation is performed on the N2 generalized ZC sequences. This has relatively low implementation complexity, compared with an existing method in which grid search should be performed multiple times to compensate for a relatively large phase rotation.
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公开(公告)号：US11317295B2
公开(公告)日：2022-04-26
申请号：US16828873
申请日：2020-03-24
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Kun Yang , Ronghui Wen , Feng Yu , Guangwei Yu
Abstract: In the method, the network device sends first signaling to a first terminal device, the first signaling is used to instruct the first terminal device to perform, on an unlicensed spectrum, a listen before talk LBT procedure used for occupying an unlicensed frequency band, and send uplink information within a first time length on the unlicensed frequency band; the network device receives, on the unlicensed spectrum, the uplink information from the first terminal device within the first time length, where the first time length is a part of maximum channel occupancy time obtained by the first terminal device on the unlicensed spectrum, and the first time length is less than the maximum channel occupancy time.
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