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公开(公告)号：US12052770B2
公开(公告)日：2024-07-30
申请号：US17402302
申请日：2021-08-13
发明人： Xiaomeng Chai , Yiqun Wu , Shaoyuan Chen , Yan Chen
IPC分类号： H04W72/04 , H04L5/00 , H04W72/0446 , H04W72/0453 , H04W72/1263 , H04W74/08 , H04W74/0833
CPC分类号： H04W74/0841 , H04L5/0051 , H04W72/0446 , H04W72/0453 , H04W72/1263 , H04W74/0866
摘要： A random access method, a device, and a system are provided, related to the field of communications technologies. The method includes: receiving first configuration information, second configuration information, and third configuration information that are sent by a network device, wherein the first configuration information is used to configure a PRACH time-frequency resource and a preamble sequence set, the second configuration information is used to configure a PUSCH time-frequency resource block corresponding to each PRACH time-frequency resource, and the third configuration information is used to configure a size of each PUSCH time-frequency resource and a correspondence between a preamble sequence and a PUSCH time-frequency resource; and sending a first message including a first preamble sequence and uplink data, wherein the first preamble sequence is carried on a first PRACH time-frequency resource, and the uplink data is carried on a PUSCH time-frequency resource associated with the first PRACH time-frequency resource.
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公开(公告)号：US20240048427A1
公开(公告)日：2024-02-08
申请号：US18489873
申请日：2023-10-19
发明人： Yunhao Zhang , Hailong Hou , Zhe Jin , Yiqun Wu
CPC分类号： H04L27/2662 , H04L5/0048 , H04L5/0044 , H04W56/001
摘要： This application provides a data transmission method. The method includes: sending uplink information of a first terminal device on a first resource, where the uplink information includes a preamble, the preamble is a preamble that is in the first resource and that can be used for a first terminal type, a type of the first terminal device is the first terminal type, the first resource corresponds to a preamble that can be used for N1 terminal types, and physical uplink shared channel resource units PRUs corresponding to preambles that can be used for different terminal types are different; or the first resource is a PRU that can be used for a first terminal type, a type of the first terminal device is the first terminal type, and PRUs that can be used for different terminal types are different.
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公开(公告)号：US11611967B2
公开(公告)日：2023-03-21
申请号：US16935627
申请日：2020-07-22
IPC分类号： H04W56/00 , H04W72/044 , H04W76/11 , H04B7/0456 , H04L27/26 , H04W72/0446 , H04W72/0453
摘要： This application provides example scrambling-based data transmission methods and apparatuses. A scrambling manner is determined based on a sending waveform. The scrambling manner can include frequency domain scrambling, time domain scrambling, or time-frequency domain scrambling. To-be-scrambled data can be scrambled based on the scrambling manner, to obtain scrambled output data. The scrambled output data can be sent. The sending waveform can be a discrete Fourier transform spreading orthogonal frequency division multiplexing (DFT-s-OFDM) waveform or a cyclic prefix orthogonal frequency division multiplexing (CP-OFDM) waveform.
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公开(公告)号：US20220272771A1
公开(公告)日：2022-08-25
申请号：US17738213
申请日：2022-05-06
发明人： Shuangshuang Xing , Yiqun Wu
摘要： A system and method for communicating hybrid automatic repeat request (HARQ) acknowledgement information, the method including receiving, by a terminal device, a physical downlink shared channel (PDSCH) that carries a random access response, the random access response including a physical uplink control channel (PUCCH) resource indicator and a PDSCH-to-hybrid automatic repeat request feedback (PDSCH-to-HARQ_feedback) timing indicator, where the PUCCH resource indicator is associated with determination of a frequency domain resource for feeding back HARQ acknowledgement information, and the PDSCH-to-HARQ_feedback timing indicator is associated with determination of a time domain resource for feeding back the HARQ acknowledgement information, and sending, by the terminal device, the HARQ acknowledgement information on the frequency domain resource and the time domain resource, wherein a sending slot is related to an uplink slot corresponding to the last symbol of the PDSCH, an offset indicated by the PDSCH-to-HARQ_feedback timing indicator, and value associated with subcarrier spacing.
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公开(公告)号：US11419151B2
公开(公告)日：2022-08-16
申请号：US16866731
申请日：2020-05-05
发明人： Lei Wang , Yan Chen , Xiuqiang Xu , Yiqun Wu , Yi Wang
摘要： A communications method and apparatus, the method including sending, by a terminal device, a random access request to a network device, where the random access request comprises a random access preamble and uplink data, receiving, by the terminal device, a random access response sent by the network device, and performing, by the terminal device, a state transition AND/OR operation corresponding to a message format of the random access response.
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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
发明人： Meng Cheng , Xiuqiang Xu , Yiqun Wu , Yan Chen
摘要： 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：US10735228B2
公开(公告)日：2020-08-04
申请号：US15218095
申请日：2016-07-25
发明人： Yiqun Wu , Shunqing Zhang , Yan Chen
IPC分类号： H04L1/00 , H04L25/03 , H04B7/0456 , H04L5/00 , H04W74/08 , H04B7/0404
摘要： 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：US10461913B2
公开(公告)日：2019-10-29
申请号：US15628939
申请日：2017-06-21
发明人： Xiuqiang Xu , Yiqun Wu , Yan Chen
摘要： 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
发明人： Lei Zhang , Xiuqiang Xu , Yan Chen , Yiqun Wu , Yinggang Du
摘要： 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
发明人： Yiqun Wu , Yan Chen , Xiuqiang Xu
摘要： 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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