US 12,348,348 B2
Data modulation method and apparatus, device, and storage medium
Yu Xin, Shenzhen (CN); Tong Bao, Shenzhen (CN); Guanghui Yu, Shenzhen (CN); Liujun Hu, Shenzhen (CN); and Jin Xu, Shenzhen (CN)
Assigned to ZTE CORPORATION, Shenzhen (CN)
Appl. No. 18/008,545
Filed by ZTE CORPORATION, Shenzhen (CN)
PCT Filed May 27, 2021, PCT No. PCT/CN2021/096221
§ 371(c)(1), (2) Date Dec. 6, 2022,
PCT Pub. No. WO2021/258974, PCT Pub. Date Dec. 30, 2021.
Claims priority of application No. 202010576321.1 (CN), filed on Jun. 22, 2020.
Prior Publication US 2023/0216723 A1, Jul. 6, 2023
Int. Cl. H04L 27/26 (2006.01)
CPC H04L 27/2634 (2013.01) 20 Claims
OG exemplary drawing
 
1. A data modulation method, comprising:
modulating a data sequence by using N constellation point modulation symbols {S(n)}, wherein the N constellation point modulation symbols are divided into two groups of modulation symbols, one group of the two groups of modulation symbols have a same phase, the other group of the two groups of modulation symbols have a same phase, a phase difference between the two groups of modulation symbols is 180°, 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;
wherein modulating the data sequence by using the N constellation point modulation symbols {S(n)} comprises:
modulating the data sequence by alternately using the constellation point modulation symbols {S(n)} and constellation point modulation symbols {ejθS(n)} after a phase change of θ, wherein e is a natural constant, j is an imaginary unit, and θ is equal to π/2 or −π/2.