REFERENCE SIGNAL SEQUENCES IN TIME DOMAIN DATA

    公开(公告)号:US20220116175A1

    公开(公告)日:2022-04-14

    申请号:US17559723

    申请日:2021-12-22

    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.

    TECHNIQUES FOR USING DISCRETE SPECTRA

    公开(公告)号:US20210328701A1

    公开(公告)日:2021-10-21

    申请号:US17339275

    申请日:2021-06-04

    Inventor: Yu XIN Tong BAO

    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.

    DATA MODULATION METHOD, COMMUNICATION DEVICE AND STORAGE MEDIUM

    公开(公告)号:US20230283508A1

    公开(公告)日:2023-09-07

    申请号:US18014936

    申请日:2021-07-01

    CPC classification number: H04L27/2627 G06F17/18

    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).

    DATA MODULATION METHOD AND APPARATUS, DEVICE, AND STORAGE MEDIUM

    公开(公告)号:US20230216723A1

    公开(公告)日:2023-07-06

    申请号:US18008545

    申请日:2021-05-27

    CPC classification number: H04L27/2691

    Abstract: Provided are a data modulation method and apparatus, a device, and a storage medium. The data modulation method includes modulating a data sequence by using N constellation point modulation symbols {S(n)}, where the N constellation point modulation symbols are divided into two groups of modulation symbols, the phase difference between the two groups of modulation symbols is a preset angle, n is an integer from 0 to N−1, and N is an even integer greater than or equal to 4; and transmitting, on a physical resource, data symbols obtained after modulation.

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