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公开(公告)号：US20200287764A1
公开(公告)日：2020-09-10
申请号：US16819516
申请日：2020-03-16
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jiayin Zhang , Jun Zhu , Yalin Liu , Yingpei Lin
Abstract: A method includes generating a preamble for a protocol version of a wireless local area network, where the preamble includes a legacy signal L-SIG field and a high efficiency signal HE-SIG field that are arranged in order, the HE-SIG field includes a first orthogonal frequency division multiplexing OFDM symbol and a second OFDM symbol that are arranged in order, and an input information bit of the first OFDM symbol is the same as that of the second OFDM symbol, and sending the preamble to a receive end device, so that the receive end device restores the preamble, and when determining that input information bits obtained after restoring the first OFDM symbol and the second OFDM symbol are the same, determines that the preamble is the preamble of the protocol version.
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92.发明申请公开(公告)号：US20200213947A1
公开(公告)日：2020-07-02
申请号：US16786085
申请日：2020-02-10
Applicant: Huawei Technologies, Co., Ltd.
Inventor： Sainan Li , Yalin Liu , Huang Huang
Abstract: Embodiments of this application disclose a data receiving method, a data sending method, a data transmission method, and a related apparatus and system. The method includes: sending, by a network device in each transmission subwindow corresponding to a broadcast signal, the broadcast signal to user equipment by using a different antenna port, where the transmission subwindow is obtained by dividing, based on preset subwindow information, a transmission window corresponding to the broadcast signal; and determining, by the UE, a transmission subwindow in which a downlink transmit beam is located; and receiving the broadcast signal in a time in which the transmission subwindow is located, where the time in which the transmission subwindow is located is calculated based on the pre-obtained subwindow information.
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公开(公告)号：US10652864B2
公开(公告)日：2020-05-12
申请号：US16132271
申请日：2018-09-14
Applicant: Huawei Technologies Co., Ltd.
IPC: H04W72/04 , H04L5/00 , H04L12/801
Abstract: Embodiments of the present disclosure disclose a sequence signal sending method, to receive control information from a network-side device, to clarify a channel resource used by a terminal to send a sequence signal to the network-side device. The method in the embodiments of the present disclosure includes: receiving, by a terminal, control information sent by a network-side device, where the control information includes a sequence identifier and a channel resource indication, and the channel resource indication is used to indicate a channel resource available for the terminal; determining, by the terminal, a corresponding sequence signal based on the sequence identifier; and sending, by the terminal, the sequence signal by using the channel resource. Therefore, it is ensured that the terminal obtains stable and reliable communication quality and provides satisfactory user experience, and a performance requirement of a future network is fully met.
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公开(公告)号：US20190357162A1
公开(公告)日：2019-11-21
申请号：US16530460
申请日：2019-08-02
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xiaohu You , Mao Wang , Jun Zhang , Yalin Liu , Hengjie Hu , Jun Zou
Abstract: This application provides a communication method and device. The method includes: determining, by a first device, a first synchronization signal, where the first synchronization signal is used by a second device for symbol timing alignment and frequency synchronization; and sending, by the first device, the first synchronization signal on each group of subcarriers of M groups of subcarriers, where M is a positive integer greater than or equal to 2. According to the communication method in this application, the first device sends the first synchronization signal on each group of subcarriers of a plurality of groups of subcarriers, so that the second device can select, based on a reception capability of the second device, an appropriate bandwidth to receive the first synchronization signal. In this way, a device with wideband reception performance and a device with narrowband reception performance can be supported.
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公开(公告)号：US10420131B2
公开(公告)日：2019-09-17
申请号：US15852395
申请日：2017-12-22
Applicant: Huawei Technologies Co., Ltd.
Inventor： Wei Han , Yalin Liu , Dageng Chen
Abstract: An uplink data transmission method and apparatus are described. The uplink data transmission method includes receiving a first message including transmission mode information. The transmission mode information indicates that a terminal device is capable of transmitting uplink data by using at least two contention transmission units (CTUs) that are in a same transmission time interval (TTI). The CTU refers to a transmission resource combining: a time, a frequency, and a code domain; a transmission resource combining a time, a frequency, and a pilot; or a transmission resource combining a time, a frequency, a code domain, and a pilot. The uplink data transmitted by using the at least two CTUs is partially the same or totally the same. The method further comprises the terminal device sending a second message including indication information, where the indication information is used to enable the terminal device to determine, according to the indication information, a CTU for uplink data transmission.
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Patent Agency Ranking
公开(公告)号：US20190268812A1
公开(公告)日：2019-08-29
申请号：US16409233
申请日：2019-05-10
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yunzhou Li , Xinxin Liu , JIng Wang , Yalin Liu
Abstract: A cell handover method, apparatus, and system, where the cell handover method includes receiving, by a mobile edge computing (MEC) server, status information of a mobile terminal from a source cell, where the status information includes location information and speed information, determining, by the MEC server, a target cell based on the status information, where the MEC server serves the target cell, the target cell is neighboring to the source cell, and coverage of the target cell partially overlaps coverage of the source cell, and sending, by the MEC server, an identifier of the target cell to the mobile terminal using the source cell. According to the cell handover method, apparatus, and system provided in this application, cell handover is controlled using the MEC server to improve efficiency of the cell handover.
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公开(公告)号：US10375658B2
公开(公告)日：2019-08-06
申请号：US15594192
申请日：2017-05-12
Applicant: Huawei Technologies Co., Ltd.
Abstract: Embodiments disclose an automatic gain control method and a communications device in a wireless local area network. The method includes generating a physical layer packet, where the physical layer packet includes a high efficiency long training field, the high efficiency long training field includes N symbols, a length of a cyclic prefix (CP— of a first symbol in the N symbols is greater than or equal to a minimum length required by a receiver device to perform automatic gain control (AGC) estimation, and N is a positive integer. The method also includes sending the physical layer packet to the receiver device.
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公开(公告)号：US20190222532A1
公开(公告)日：2019-07-18
申请号：US16368664
申请日：2019-03-28
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yalin Liu , Jun Zhang , Xiangjiang Qian , Junping Sun , Hengjie Hu
IPC: H04L12/917 , H04L5/00 , H04L12/725 , H04L27/26
Abstract: This application provides a communications method and device. The communications method includes: determining a first frequency band and a second frequency band in an operating frequency band; and transmitting a first-type frame in the first frequency band, and transmitting a second-type frame in the second frequency band, where the first-type frame is used to carry a first-type service, the second-type frame is used to carry a second-type service, and the second-type frame and the first-type frame have different frame structures. Therefore, in embodiments of the present application, different frame structures are used in different frequency bands in the operating frequency band, and different services are carried by using the different frame structures, thereby meeting transmission requirements of different types of services.
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公开(公告)号：US10356740B2
公开(公告)日：2019-07-16
申请号：US15823471
申请日：2017-11-27
Applicant: Huawei Technologies Co., Ltd.
Inventor： Liqing Zhang , Yalin Liu , Qinghai Zeng , Xiaoying Xu , Jianglei Ma
IPC: H04W56/00 , H04B7/0417 , H04W74/00 , H04W74/08
Abstract: A method and apparatus for timing advance (TA) synchronization for uplink (UL) data transmissions are provided. A base station transmits a TA instruction to a UE. The TA instruction indicates one of at least two TA options. The first TA option indicates direct initial grant-free (GF) uplink (UL) data transmissions. The second TA option indicates indirect initial GF UL data transmissions with the UE initiating TA reference signaling for updating a TA parameter of the UE. The UE performs an initial GF UL data transmission to the base station based on the TA instruction.
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公开(公告)号：US10348450B2
公开(公告)日：2019-07-09
申请号：US15719812
申请日：2017-09-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Abstract: Embodiments of the present invention provide a coding method and apparatus, a base station, and user equipment. The method includes: determining a quantity of polar codes used to code a to-be-transmitted data block and a block length of each polar code of the polar codes used to code the to-be-transmitted data block; and determining, according to a quantity of bits of the to-be-transmitted data block, the block length of each polar code of the polar codes used to code the to-be-transmitted data block, and an input composite channel characteristic corresponding to each input bit position in the polar code of the polar codes used to code the to-be-transmitted data block, allocation information of valid input bits of the polar code of the polar codes used to code the to-be-transmitted data block. The quantity of polar codes used to code the to-be-transmitted data block is not less than two.
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