OTFS BASIS ALLOCATION METHOD IN WIRELESS COMMUNICATION SYSTEM USING OTFS TRANSMISSION SYSTEM

    公开(公告)号:US20190268113A1

    公开(公告)日:2019-08-29

    申请号:US16320407

    申请日:2016-07-27

    Abstract: A method for receiving orthogonal time, frequency and space (OFTS) basis allocation information by an user equipment in a wireless communication system using an OTFS transmission scheme includes receiving control information including information on an OTFS basis size N from a base station; and receiving data on OTFS bases of a predetermined size indexed according to a pre-defined rule in an N×N OTFS transform matrix on time and frequency domains corresponding to the OTFS basis size, wherein the OTFS bases of the OTFS basis size N is represented into an N×N OTFS transform matrix, wherein in the N×N OTFS transform matrix, a row index represents a cyclic frequency shift index, and a column index represents a cyclic time shift index, wherein the indexing according to the pre-defined rule includes indexing the OTFS bases of the predetermined size in an order such that the cyclic frequency shift and the cyclic time shift in the N×N OTFS transform matrix are maximized.

    METHOD FOR TRANSMITTING/DETECTING DATA ON THE BASIS OF NON-ORTHOGONAL MULTIPLE ACCESS METHOD, AND DEVICE THEREFOR

    公开(公告)号:US20190223225A1

    公开(公告)日:2019-07-18

    申请号:US16327240

    申请日:2017-07-28

    Abstract: Provided is a non-orthogonal multiple access method, which: randomly selects a physical resource for performing non-orthogonal multiple access among the contention-based data transmission areas defined in advance; selects a reference signal sequence for a contention-based data transmission through the selected physical resource; selects a contention resource for the contention-based data transmission; selects a scrambling sequence to be applied to data transmission in the contention-based data transmission; and transmitting a data channel including data and a reference signal corresponding to the selected reference signal sequence through the selected physical resource, wherein the data channel is transmitted by allowing the selected scrambling sequence to be applied thereto.

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