US 11,658,860 B2
Class of symbol constellations for data transmission
Stefano Calabro, Munich (DE); Maximilian Schaedler, Munich (DE); Fabio Pittala, Munich (DE); and Maxim Kuschnerov, Munich (DE)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed on Aug. 10, 2021, as Appl. No. 17/398,418.
Application 17/398,418 is a continuation of application No. PCT/EP2019/053308, filed on Feb. 11, 2019.
Prior Publication US 2021/0367828 A1, Nov. 25, 2021
Int. Cl. H04L 27/34 (2006.01)
CPC H04L 27/3411 (2013.01) 20 Claims
OG exemplary drawing
1. A transmitting device using two-dimensional symbol constellations, wherein the transmitting device comprises:
a memory comprising instructions; and
a processor coupled to the memory and configured to execute the instructions to cause the transmitting device to:
obtain a message to be transmitted;
map the message onto a two-dimensional 2n-symbol constellation to obtain a sequence of discrete constellation symbols, wherein n is an odd number not less than 3, wherein the two-dimensional 2n-symbol constellation comprises 2n points arranged along perimeters of q concentric squares, wherein points in each concentric square of the q concentric squares are uniformly spaced along the perimeters and four points are located at corners of the concentric squares, and wherein q is a positive integer; and
transmit the discrete constellation symbols,
wherein first pairs of sides of the q concentric squares are parallel to an I axis, and second pairs of the sides of the q concentric squares are parallel to a Q axis, wherein a center of the squares coincides with an origin of an in-phase-quadrature (I-Q) plane, wherein a side of an i-th square has length Li, with L1≤L2≤. . . <Lq, wherein the i-th square contains 4·Ni points, wherein Ni is an integer, wherein N1≤N2≤. . . ≤Nq, and wherein the parameters L=[L1, . . . , Lq] and N=[N1, . . . , Nq] have been optimized by minimizing a cost function.