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公开(公告)号：US10735228B2
公开(公告)日：2020-08-04
申请号：US15218095
申请日：2016-07-25
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yiqun Wu , Shunqing Zhang , Yan Chen
IPC: H04L1/00 , H04L25/03 , H04B7/0456 , H04L5/00 , H04W74/08 , H04B7/0404
Abstract: The present application provides a method for a terminal device to transmit uplink service data to a base station. The terminal device obtains uplink service data from a user input in a service session. The terminal device obtains a codebook from a preset codebook set of the terminal and a pilot sequence corresponding to the codebook. The terminal device generates an uplink data signal according to the codebook and the uplink service data, and generates a pilot signal corresponding to the pilot sequence. The terminal device transmits the uplink data signal and the pilot signal to the base station.
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公开(公告)号：US10716140B2
公开(公告)日：2020-07-14
申请号：US15940996
申请日：2018-03-30
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Zhaoyang Zhang , Xianbin Wang , Yu Zhang , Yan Chen
Abstract: The present invention discloses a terminal access method and an apparatus, to resolve a problem in an existing SCMA multi-terminal access mechanism that a conflict causes system performance degradation and may cause system retransmission. The method is as follows: determining, by a terminal, to enter a contention-based access phase; and determining, by the terminal during each transmission of binary data, a first signature according to a random number seed and a signature matrix, and mapping, according to the first signature, the binary data to a multi-dimensional symbol for transmission, where first signatures used during different transmissions of binary data are different.
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公开(公告)号：US10461913B2
公开(公告)日：2019-10-29
申请号：US15628939
申请日：2017-06-21
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xiuqiang Xu , Yiqun Wu , Yan Chen
Abstract: The present invention discloses an indication information transmission method and apparatus. The method includes determining a first signature sequence and a first modulation constellation that are used to transmit a first downlink data stream to a terminal device and determining one or more second signature sequences and one or more second modulation constellations that are used to transmit a second downlink data stream. The method also includes determining indication information that is used to indicate the first signature sequence, the first modulation constellation, the one or more second signature sequences, and the one or more second modulation constellations and transmitting the indication information to the terminal device.
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公开(公告)号：US20190319762A1
公开(公告)日：2019-10-17
申请号：US16451728
申请日：2019-06-25
Applicant: Huawei Technologies Co., Ltd.
Inventor： Lei Zhang , Xiuqiang Xu , Yan Chen , Yiqun Wu , Yinggang Du
Abstract: A grant-free transmission method, a terminal, and a network device, the method including after determining a grant-free transmission pilot and a sending attribute parameter group, mapping, by a terminal, a pilot sequence to a corresponding location on a grant-free transmission resource block unit based on a relationship between a time-frequency resource location of a pilot and the sending attribute parameter group, and mapping data to another location on the grant-free transmission resource block unit.
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公开(公告)号：US10419182B2
公开(公告)日：2019-09-17
申请号：US15847470
申请日：2017-12-19
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yiqun Wu , Yan Chen , Xiuqiang Xu
Abstract: The present invention discloses a pilot sequence transmission method and apparatus. A terminal device determines a first pilot number, determines a first pilot sequence and a second pilot sequence according to the first pilot number, respectively maps the first pilot sequence and the second pilot sequence to a first OFDM symbol and a second OFDM symbol of a grant free transmission resource, and sends the first pilot sequence and the second pilot sequence by using the first OFDM symbol and the second OFDM symbol. Therefore, a network device can determine activeness of the terminal device by detecting the first pilot sequence, and can detect only the second pilot sequence corresponding to the first pilot sequence, and does not need to detect all possible second pilot sequences, so that a quantity of detected pilots can be significantly reduced, and pilot detection complexity is reduced.
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Patent Agency Ranking
公开(公告)号：US20190166609A1
公开(公告)日：2019-05-30
申请号：US16262611
申请日：2019-01-30
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xiuqiang Xu , Yan Chen , Yinggang Du
Abstract: A data transmission method, a terminal, and a network device are provided, to improve reliability of data transmission performed by a terminal in a grant-free mode. In embodiments of the present invention, a terminal sends, in a grant-free mode, first data to a network device by using a grant-free resource, and if the terminal needs to switch from the grant-free mode to a grant mode, the terminal sends, in the grant mode, second data to the network device by using a grant resource. When the terminal initially transmits the first data in the grant-free mode, if the terminal needs to switch from the grant-free mode to the grant mode, the terminal may fall back to the grant mode and transmit data in the grant mode. In this way, reliability of data transmission is improved and a success rate of data transmission is improved to a relatively great extent.
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公开(公告)号：US20180146495A1
公开(公告)日：2018-05-24
申请号：US15872991
申请日：2018-01-17
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xiuqiang XU , Yan Chen , Yalin Liu
CPC classification number: H04W74/004 , H04W16/04 , H04W72/0413 , H04W74/00 , H04W74/006 , H04W76/11
Abstract: The present invention discloses a method and an apparatus for obtaining configuration information of a grant-free transmission unit. A centrally configured network element sends configuration information of a grant-free transmission unit of an access device to the access device, where the grant-free transmission unit refers to a transmission resource used for grant-free transmission, and the configuration information of the grant-free transmission unit includes at least one or more of the following information: information about the grant-free transmission unit or information about a grant-free transmission control mechanism. By using the method and the apparatus for obtaining configuration information of a grant-free transmission unit, an access device can obtain configuration information of a grant-free transmission unit.
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公开(公告)号：US20180109366A1
公开(公告)日：2018-04-19
申请号：US15847470
申请日：2017-12-19
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
Inventor： Yiqun Wu , Yan Chen , Xiuqiang Xu
CPC classification number: H04L5/0048 , H04L5/0032 , H04L5/0051 , H04L27/26 , H04L27/2601 , H04L27/2613
Abstract: The present invention discloses a pilot sequence transmission method and apparatus. A terminal device determines a first pilot number, determines a first pilot sequence and a second pilot sequence according to the first pilot number, respectively maps the first pilot sequence and the second pilot sequence to a first OFDM symbol and a second OFDM symbol of a grant free transmission resource, and sends the first pilot sequence and the second pilot sequence by using the first OFDM symbol and the second OFDM symbol. Therefore, a network device can determine activeness of the terminal device by detecting the first pilot sequence, and can detect only the second pilot sequence corresponding to the first pilot sequence, and does not need to detect all possible second pilot sequences, so that a quantity of detected pilots can be significantly reduced, and pilot detection complexity is reduced.
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公开(公告)号：US20170359350A1
公开(公告)日：2017-12-14
申请号：US15667635
申请日：2017-08-03
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jinming Li , Yan Chen , Chengchen Hu
IPC: H04L29/06
Abstract: The application relates to controlling access in a software-defined network (SDN). A controller in the SDN receives an access request from an application program. The controller determines whether an operation on a resource as specified in the access request belongs to a permission list corresponding to the application program. The permission list includes a list of permitted operations on the resource by the application program. When the operation as specified in the access request belongs to the permission list, the controller sends a reply message allowing access by the application program. In this way, accesses by the application program are restricted according to the permission list, and malicious attacks from the application program can be prevented to ensure network security.
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60.发明授权公开(公告)号：US09807702B2
公开(公告)日：2017-10-31
申请号：US14939938
申请日：2015-11-12
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yalin Liu , Zhikun Xu , Yan Chen , Wei Zhang , Shunqing Zhang
IPC: H04W52/24 , H04B7/024 , H04W52/42 , H04L1/06 , H04W24/02 , H04L25/03 , H04L5/00 , H04W16/32 , H04W72/04 , H04W88/08
CPC classification number: H04W52/244 , H04B7/024 , H04L1/06 , H04L5/0035 , H04L25/03904 , H04W16/32 , H04W24/02 , H04W52/42 , H04W72/0473 , H04W88/08
Abstract: Embodiments of the present invention disclose a precoding method and an apparatus for heterogeneous network coordinated multi-point transmission. The method includes: obtaining parameter information of the heterogeneous network coordinated multi-point transmission system; comparing a first channel space transmitting power with the maximum transmitting power of a macro base station, and comparing a second channel space transmitting power with the maximum transmitting power of a micro base station according to the parameter information to obtain a comparison result; determining an obtaining manner of a precoding vector according to the comparison result, and obtaining a first precoding vector according to the obtaining manner of the precoding vector; and configuring the macro base station and the micro base station according to the first precoding vector. The embodiments of the present invention are applicable to a heterogeneous network coordinated multi-point transmission environment.
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