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公开(公告)号：US11271787B2
公开(公告)日：2022-03-08
申请号：US16811139
申请日：2020-03-06
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Lei Wang , Yan Chen , Xiuqiang Xu , Lei Zhang , Xiaoyan Bi
Abstract: This application provides a method for generating a pilot signal, including: obtaining, by a terminal device, a correlation identifier and a port number; determining, by the terminal device, a pilot sequence based on the correlation identifier; and generating, by the terminal device, the pilot signal based on the pilot sequence and the port number. The correlation identifier indicates how a pilot sequence is determined and whether the pilot sequence is correlated with a time slot.
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公开(公告)号：US11265899B2
公开(公告)日：2022-03-01
申请号：US16800803
申请日：2020-02-25
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xiuqiang Xu , Lei Wang , Shunqing Zhang , Yan Chen
Abstract: Embodiments disclose an uplink data transmission method and apparatus. The method includes: determining M transmission areas allocated to a terminal device, and generating first information used to indicate the M transmission areas, where M is a positive integer, and the transmission area represents an air interface time-frequency resource that includes a time range and a frequency range that are specified by a communications system. The method also includes determining, for each transmission area of the M transmission areas, second information used to indicate a transport block size. The method also includes sending an indication message to the terminal device, so that the terminal device transmits uplink data according to the indication message, where the indication message includes the first information and the second information.
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公开(公告)号：US11212054B2
公开(公告)日：2021-12-28
申请号：US16546664
申请日：2019-08-21
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xiuqiang Xu , Yan Chen , Lei Wang , Yinggang Du
Abstract: A data transmission method and apparatus for determining a transport block size, the method including obtaining, by a first device, a first parameter, where the first parameter is used to indicate a quantity of resource elements included in a resource mapping unit, determining, by the first device, a first transport block size based on the first parameter, and transmitting, by the first device, data based on the first transport block size.
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公开(公告)号：US11108597B2
公开(公告)日：2021-08-31
申请号：US16515665
申请日：2019-07-18
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Meng Cheng , Xiuqiang Xu , Yiqun Wu , Yan Chen
Abstract: Example data transmission methods and apparatus are described. One example method includes obtaining at least two signature sequences used to perform multiple access for at least two to-be-sent data packets by a user equipment. The user equipment processes the at least two data packets by respectively using corresponding signature sequences, to obtain at least two transmit sequences. The user equipment sends the at least two transmit sequences to a network device on a same time-frequency resource. Then the network device obtains the at least two signature sequences used by the user equipment to send the at least two transmit sequences, and separately detects a corresponding transmit sequence based on each signature sequence, to obtain the at least two data packets. The user equipment can transmit a plurality of data packets on a same time-frequency resource in a same slot.
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公开(公告)号：US10931416B2
公开(公告)日：2021-02-23
申请号：US16460892
申请日：2019-07-02
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xiuqiang Xu , Yan Chen , Liqing Zhang , Yi Wang
Abstract: Embodiments of this application provide a data transmission method, a network device, and a terminal device. The method may include detecting, by a network device, a first signal in an uplink signal. The method may also include determining, by the network device, a signal structure of the uplink signal based on a result of detecting the first signal. Furthermore, the method may include receiving, by the network device, the uplink signal based on the signal structure, and/or responding to the uplink signal based on the signal structure. According to the data transmission method in the embodiments of this application, before receiving data, the network device can determine the signal structure, used by the terminal device, of the uplink signal, and then use a corresponding receiving method to avoid complexity and a reliability risk that are caused by completely blind detection performed by the network device, as well as to effectively reduce a delay and signaling overheads.
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Patent Agency Ranking
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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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：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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