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公开(公告)号：US12095692B2
公开(公告)日：2024-09-17
申请号：US17559723
申请日：2021-12-22
Applicant: ZTE Corporation
Inventor： Yu Xin , Jianwei Wang , Tong Bao
CPC classification number: H04L5/0048 , H04L45/24
Abstract: This patent document discloses techniques that can be implemented in various embodiments to prevent the data transmission rate from decreasing due to the CP and GI while solving the multipath delay problem and maintaining low PAPR and channel estimation accuracy. In some embodiments of the disclosed technology, a wireless communication method can be implemented to generate a transmit waveform that is organized in transmission subframes, wherein a given transmission subframe includes one or more data block each including a data portion and a reference portion, wherein the reference portion includes a part of a reference signal that is included in at least one of the transmission subframes.
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公开(公告)号：US12155518B2
公开(公告)日：2024-11-26
申请号：US18014936
申请日：2021-07-01
Applicant: ZTE CORPORATION
Abstract: A data modulation method, a communication device and a storage medium are disclosed. The data modulation method includes, performing a preset modulation operation on B consecutive data blocks, and configuring the B consecutive data blocks to have a same head-end reference signal sequence and/or a same tail-end reference signal sequence, inserting Z zeros between adjacent time domain data of the B consecutive data blocks; performing a filtering operation on the B consecutive data blocks into which Z zeros have been inserted, and transmitting the filtered data on a physical resource, where B is greater than or equal to 2 (i.e., B≥2), and Z is greater than or equal to 0 (i.e., Z≥0).
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公开(公告)号：US12155515B2
公开(公告)日：2024-11-26
申请号：US17864254
申请日：2022-07-13
Applicant: ZTE Corporation
Inventor： Yu Xin , Tong Bao , Jin Xu , Guanghui Yu , Liujun Hu
Abstract: Methods, apparatus, and systems for increasing spectral efficiency for transmissions with different numerologies. In one example aspect, a wireless communication method. The method includes operating, by a communication device, a first transmission band associated with a first numerology. The first transmission band comprises a first subcarrier spacing Δf1 and a first symbol length of T1 in time domain. The method includes operating, by the communication device, a second transmission band associated with a second numerology. The second transmission band comprises a second subcarrier spacing Δf2. The method also includes operating, by the communication device, a third transmission band positioned between the first transmission band and the second transmission band. The third transmission band comprises a subcarrier spacing equal to the second subcarrier spacing Δf2 and a symbol length equal to the first symbol length T1.
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公开(公告)号：US12231274B2
公开(公告)日：2025-02-18
申请号：US17740863
申请日：2022-05-10
Applicant: ZTE Corporation
Inventor： Yu Xin , Tong Bao , Jin Xu , Guanghui Yu , Liujun Hu
IPC: H04L27/26
Abstract: This disclosure relates to methods and devices for configuring guard subcarriers in transmission subbands to reduce interband interference in a wireless communication network. In one implementation, the method may include determining that a first subcarrier spacing for a first radio frequency transmission band is less than a second subcarrier spacing for a second radio frequency transmission band, and the first radio frequency transmission band is close to the second radio frequency transmission band in frequency spectrum. The method may further include configuring a subcarrier of the first radio frequency transmission band as a guard subcarrier carrying dummy data when the first radio frequency transmission band and the second radio frequency transmission band are simultaneously used to transmit data loads.
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Patent Agency Ranking
公开(公告)号：US11777640B2
公开(公告)日：2023-10-03
申请号：US17529843
申请日：2021-11-18
Applicant: ZTE CORPORATION
IPC: H04L1/00 , H04J13/00 , H04L1/1607 , H04L27/26
CPC classification number: H04L1/0008 , H04J13/0062 , H04L1/1642 , H04L27/2634
Abstract: A method and apparatus for inserting dummy sequences during data modulation in a communication system, according to channel status, link status, and the like, is disclosed. In one embodiment, a method for data modulation by a wireless communication node of a wireless communication system, includes: inserting at least one first dummy sequence to a first data sequence in a first data block; and inserting at least one second dummy sequence to a second data sequence in a second data block; wherein a first length of a first dummy sequence is different from a second length of a second dummy sequence, and wherein the second dummy sequence includes the first dummy sequence or is included in the first dummy sequence.
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公开(公告)号：US12015475B2
公开(公告)日：2024-06-18
申请号：US17339275
申请日：2021-06-04
Applicant: ZTE Corporation
CPC classification number: H04J13/16 , H04L27/26025 , H04L27/2605 , H04L27/2628
Abstract: Methods, apparatus, and systems for efficiently utilizing scattered narrow spectra without introducing interference among adjacent frequency bands are described. In one example aspect, a wireless communication method includes determining a set of time-domain symbols by applying an inverse Fourier transform to a set of processed data modulated on multiple subcarrier groups. Each subcarrier group comprises an even number of subcarriers and adjacent subcarrier groups are separated by one or more unused subcarriers. The set of processed data is determined by applying a first spreading code to data carried in subcarrier groups having 2×m subcarriers when m is a positive odd number and applying one or more spreading codes to data carried in subcarrier groups having 2×n subcarriers when n is a positive even number. The method also includes transmitting the set of time-domain symbols.
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公开(公告)号：US12107715B2
公开(公告)日：2024-10-01
申请号：US18014718
申请日：2021-05-20
Applicant: ZTE CORPORATION
Inventor： Yu Xin , Tong Bao , Guanghui Yu , Liujun Hu , Jin Xu
IPC: H04L27/26
CPC classification number: H04L27/2636 , H04L27/261 , H04L27/2614 , H04L27/26265
Abstract: A data transmission method includes: performing M-point discrete Fourier transform (DFT) on first time domain data to obtain frequency domain data; performing a filtering operation on the frequency domain data to obtain filtered frequency domain data; performing N-point inverse discrete Fourier transform (IDFT) on the filtered frequency domain data to obtain second time domain data; and transmitting the second time domain data on a physical resource.
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公开(公告)号：US11855824B2
公开(公告)日：2023-12-26
申请号：US18008543
申请日：2021-05-27
Applicant: ZTE CORPORATION
Inventor： Yu Xin , Tong Bao , Jin Xu , Guanghui Yu , Liujun Hu
CPC classification number: H04L27/2617 , H04L27/3411
Abstract: Provided are a data modulation method and apparatus, a device, and a storage medium. The data modulation method comprises: modulating data according to a configured constellation point modulation symbol S(n) set, wherein n is an integer between 0 and N−1, and N is an even integer greater than or equal to 4; and transmitting the modulated data on a physical resource.
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公开(公告)号：US11757584B2
公开(公告)日：2023-09-12
申请号：US17339211
申请日：2021-06-04
Applicant: ZTE Corporation
CPC classification number: H04L5/0042 , H04L27/2602 , H04L27/2605 , H04L27/26025 , H04L27/2628 , H04L27/2637 , H04L5/0044
Abstract: Methods, apparatus, and systems for efficiently utilizing scattered narrow spectra without introducing interreference among adjacent frequency bands are described. In one example aspect, a wireless communication method includes determining a set of time-domain symbols by applying an inverse Fourier transform to data modulated on multiple subcarrier groups. Each subcarrier group comprises one or more subcarriers and adjacent subcarrier groups are separated by one or more unused subcarriers, and each symbol has a symbol length of T0. The method includes determining a set of modulated time-domain symbols each having a length of N×T1 by modulating the set of time-domain symbols using a waveform function, where N is a real number greater than 1. The method includes transmitting the set of modulated time-domain symbols.
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