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公开(公告)号：US11172401B2
公开(公告)日：2021-11-09
申请号：US15567016
申请日：2016-04-01
Inventor： Xueming Pan , Zukang Shen , Shaohui Sun , Yanan Lin
Abstract: A method and device for transmitting data, which are used for solving the problems in the prior art that an existing frame structure would increase the user-plane delay of a TD-LTE system and decrease the system performance. A wireless frame transmitted between a network side device and a terminal comprises a reinforced sub-frame, and the reinforced sub-frame comprises a UL portion and a DL portion. A TDD frame structure of the embodiments of the present invention can decrease the user-plane delay on the basis of maintaining the service flexibility, and also can maintain the backward compatibility of a system.
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公开(公告)号：US10554330B2
公开(公告)日：2020-02-04
申请号：US15532992
申请日：2015-12-21
Inventor： Xiaoming Dai , Shaoli Kang , Shaohui Sun , Xi Meng
Abstract: The present application provides a spatial layered transmission method and a spatial layered transmission device. The spatial layered transmission method includes steps of: dividing to-be-transmitted data into at least two layers of spatial data; determining a symbol rate for each layer of spatial data, to enable an error between SERs for the layers of spatial data to be smaller than a predetermined error threshold; and encoding each layer of spatial data in accordance with the determined symbol rate, and transmitting the encoded layer of spatial data.
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公开(公告)号：US11190211B2
公开(公告)日：2021-11-30
申请号：US16610722
申请日：2018-04-19
Inventor： Di Zhang , Jiaqing Wang , Xueming Pan , Shaohui Sun
Abstract: A method and a device of selecting a base graph of a low-density parity-check code are provided. The method includes: acquiring a data information length and a channel coding rate of to-be-encoded data; determining a target base graph selection strategy according to the data information length and an information length range of a base graph; determining a target base graph for the to-be-encoded data according to the target base graph selection strategy and the channel coding rate.
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公开(公告)号：US11178686B2
公开(公告)日：2021-11-16
申请号：US16073233
申请日：2017-01-19
Inventor： Lei Wang , Xuejuan Gao , Fang-Chen Cheng , Shaohui Sun
Abstract: Disclosed are a method and apparatus for transmitting and detecting downlink control information. The method involves determining a state of resource allocation in a downlink transmission time period, the resource allocation corresponds to allocation of at least one downlink transmission resource region; and transmitting downlink control information on a preset resource in the at least one downlink transmission resource region, the downlink control information being used for scheduling at least one terminal to perform data transmission in the downlink transmission resource region. The method also involves detecting the downlink control information on the preset resource in the downlink transmission time period; determining, according to the detected downlink control information, a data transmission region indicated by the downlink control information; and detecting follow-up downlink control information according to the data transmission region. By using the present invention, downlink control information can be transmitted at a fixed position in each downlink transmission time period, and multiple transmission time intervals of different lengths are supported, so that rich service types in the future can be better supported.
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5.发明授权公开(公告)号：US11063605B2
公开(公告)日：2021-07-13
申请号：US16630831
申请日：2018-06-28
Inventor： Jiaqing Wang , FangChen Cheng , Shaohui Sun
Abstract: The code block segmentation method includes: a base station determining whether to use the maximum length of a first pre-set information bit for code block segmentation or to use the maximum length of a second pre-set information bit for code block segmentation; if it is determined to use the maximum length of the first pre-set information bit for code block segmentation, the base station segmenting a transport block into one or more segments by taking the maximum length of the first pre-set information bit as an upper limit; and if it is determined to use the maximum length of the second pre-set information bit for code block segmentation, the base station segmenting a transport block into one or more segments by taking the maximum length of the second pre-set information bit as an upper limit, wherein the maximum length of the first pre-set information bit is greater than the maximum length of the second pre-set information bit.
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Patent Agency Ranking
公开(公告)号：US11038531B2
公开(公告)日：2021-06-15
申请号：US16626284
申请日：2018-05-15
Inventor： Jiaqing Wang , Xijin Mu , Di Zhang , Baoming Bai , Shaohui Sun
Abstract: An encoding method and apparatus, and a computer storage medium, wherein same are used to improve the LDPC encoding performance, and are thus suitable for 5G systems. The encoding method comprises: determining a base graph of a low density parity check code (LDPC) matrix, and constructing a cyclic coefficient index matrix; determining a sub-cyclic matrix according to the cyclic coefficient index matrix; and carrying out LDPC encoding according to the sub-cyclic matrix and the base graph.
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公开(公告)号：US10911202B2
公开(公告)日：2021-02-02
申请号：US16075141
申请日：2017-01-17
Inventor： Xuejuan Gao , Fang-chen Cheng , Xueming Pan , Shaohui Sun
Abstract: Disclosed are an uplink and downlink transmission resource allocation method and device. In this application, a first channel is transmitted on a specified time-frequency resource within a first channel transmitting period according to the first channel transmitting period. The first channel is at least used for notifying allocation information of an uplink transmission resource and a downlink transmission resource within the first channel transmitting period or an effective time period of the first channel, so that dynamic partitioning and notification of the uplink transmission resource and the downlink transmission resource are achieved.
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公开(公告)号：US10805045B2
公开(公告)日：2020-10-13
申请号：US16490559
申请日：2018-02-12
Inventor： Jiaqing Wang , Shaohui Sun , Xueming Pan
Abstract: Disclosed are a polar code encoding method and device and a polar code decoding method and device. The polar code encoding method comprises: reading a known first sequence; and for an information sequence to be encoded, combining the information sequence with the first sequence, and performing polar code encoding on the combined sequence. In the polar code encoding method provided by embodiments of the present disclosure, a known first sequence is read and polar code encoding is performed on an information sequence and the first sequence. Thus, polar code encoding on the information sequence to be encoded is implemented, and a new polar code encoding solution is provided.
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公开(公告)号：US10778311B2
公开(公告)日：2020-09-15
申请号：US15774268
申请日：2016-10-26
Inventor： Qiubin Gao , Shanzhi Chen , Runhua Chen , Wenhong Chen , Hui Li , Tamrakar Rakesh , Shaohui Sun
IPC: H04B7/06 , H04L1/06 , H04B7/04 , H04B7/0417 , H04B7/0456
Abstract: Disclosed are channel state information feedback and data transmission method and apparatus. The method comprises: determining a first codebook on a base station side, the first codebook being a set composed of precoding matrixes; determining a first codebook on a terminal side, the first codebook being a set composed of precoding matrixes; calculating channel state information according to the first codebooks; and feeding back the channel state information to a base station. Data transmission is performed on the terminal on the base station side, and in the data transmission process, some or all of the precoding matrixes in the first codebooks are utilized to perform processing, over a resource allocated to a terminal, on data to be transmitted. By using the present application, precoding matrixes needed for open-loop AMMO calculation can be determined, traversing of whole space is avoided, difficulties in system design and implementation are reduced, and the system performance is improved.
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公开(公告)号：US10454636B2
公开(公告)日：2019-10-22
申请号：US15322079
申请日：2015-06-16
Inventor： Shaoli Kang , Shaohui Sun , Xiaoming Dai
Abstract: According to embodiments of the present disclosure, a transmitting device processes the signals transmitted by one or more UEs, maps the non-orthogonal characteristic patterns for the processed signals for the one or more UEs so as to superpose the signals for different UEs on the corresponding radio resources, and transmits the processed signals for the one or more UEs in accordance with a mapping result.
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