	US 12,323,242 B2
	Method for coding on time space two dimensional channel
Xiaohu You, Jiangsu (CN); Yongming Huang, Jiangsu (CN); and Bin Sheng, Jiangsu (CN)
Assigned to SOUTHEAST UNIVERSITY, Jiangsu (CN)
Appl. No. 18/044,126
Filed by Southeast University, Jiangsu (CN)
PCT Filed Jun. 1, 2022, PCT No. PCT/CN2022/096611 § 371(c)(1), (2) Date Mar. 6, 2023, PCT Pub. No. WO2023/000836, PCT Pub. Date Jan. 26, 2023.
Claims priority of application No. 202110827946.5 (CN), filed on Jul. 22, 2021.
Prior Publication US 2023/0318745 A1, Oct. 5, 2023
Int. Cl. H04L 1/06 (2006.01); H04L 1/00 (2006.01)

CPC H04L 1/0625 (2013.01) [H04L 1/0013 (2013.01); H04L 1/0018 (2013.01); H04L 1/0071 (2013.01); H04L 1/0631 (2013.01)]

10 Claims

1. A method for coding based on a time-space two-dimensional channel, wherein the method comprises steps of:

Step 1: sending, by a sending terminal, a pilot signal, estimating, by a receiving terminal, a channel, and selecting, according to requirements for a transmission time rate, a latency and a code error rate in different scenarios, appropriate code word serial numbers, modulation modes, rate matching tables and space time slicing modes for a time-domain coding and a space-domain coding, and then feeding back to the sending terminal together with a rank L of the channel;

Step 2: slicing, when adopting a Time Space Concatenated Coding Mode in a time-space two-dimensional coding, data in space-domain by the sending terminal according to a feedback time-domain coding rate, and forming M^tdata streams in parallel, wherein each of the M^tdata streams has K_i^tbits, where 0≤i>M^t−1, M^tis a number of data streams resulted from the sliced data in the space-domain, and K_i^tis a number of bits of each of the M^tdata streams;

Step 3: selecting, according to a code word of time-domain, a coding structure by the sending terminal, and coding each of the Mⁱdata streams according to a time-domain coding rate, and eventually forming, by a rate matching, data blocks of an equal length in the time-domain;

Step 4: slicing, according to a feedback space-domain coding rate, data in the time-domain by the sending terminal, and forming M^sdata streams in parallel, wherein each of the M⁸data streams has K_i⁸bits, where 0≤i≥ M^s−1, M^sis a number of data streams resulted from the sliced data in the time-domain, and K_i^sis a number of bits of each of the M^sdata streams;

Step 5: selecting, according to a code word of the space-domain, the coding structure by the sending terminal, and coding each of the M^sdata streams according to a space-domain coding rate, and eventually forming, by the rate matching, data blocks containing L bits in the space-domain;

Step 6: modulating, according to a feedback modulation mode, B bits adjacent to the space-domain coding rate, the data in the space-domain by the sending terminal and forming the M^tdata streams in parallel, wherein each of the M^tdata streams has the K_i^tbits, where 0≤i≥M^t−1, L is a number of layers, and B is a number of bits per symbol;

Step 7: slicing, when adopting a Space Time Concatenated Coding Mode in the time-space two-dimensional coding, the data in the time-domain by the sending terminal according to the feedback space-domain coding rate, and forming the M^sdata streams in parallel, wherein each of the M^sdata streams has the K_i^sbits, where 0≤i≥M^s−1;

Step 8: selecting, according to the code word of the space-domain, the coding structure by the sending terminal, coding each of the M^tdata streams according to the space-domain coding rate, and eventually forming, by the rate matching, the data blocks containing L bits in the space-domain;

Step 9: slicing, according to the feedback space-domain coding rate, the data in the space-domain by the sending terminal and forming the M^tdata streams in parallel, wherein each of the M^tdata streams has the K_i^tbits, where 0≤i≥M^t−1;

Step 10: selecting, according to the code word of the time-domain, the coding structure by the sending terminal, and coding each of the M^tdata streams according to the time-domain coding rate, and eventually forming, by the rate matching, the data blocks of the equal length in the time-domain; and

Step 11: modulating, according to the feedback modulation mode, the B bits adjacent to each other in the time-domain to form L symbol streams.