US 11,671,213 B2
Method and apparatus for transmission and reception in wireless communication system supporting scalable frame structure
Youngbum Kim, Seoul (KR); Younsun Kim, Gyeonggi-do (KR); and Yongjun Kwak, Gyeonggi-do (KR)
Assigned to Samsung Electronics Co., Ltd
Filed by Samsung Electronics Co., Ltd., Gyeonggi-do (KR)
Filed on May 18, 2017, as Appl. No. 15/598,932.
Claims priority of application No. 10-2016-0061495 (KR), filed on May 19, 2016.
Prior Publication US 2017/0338920 A1, Nov. 23, 2017
Int. Cl. H04L 5/00 (2006.01); H04L 27/26 (2006.01); H04J 11/00 (2006.01); H04L 1/1829 (2023.01); H04L 5/14 (2006.01)
CPC H04L 5/0007 (2013.01) [H04J 11/0093 (2013.01); H04L 1/1829 (2013.01); H04L 5/0064 (2013.01); H04L 5/1469 (2013.01); H04L 27/2602 (2013.01); H04L 27/2607 (2013.01); H04L 27/26025 (2021.01); H04L 5/0048 (2013.01)] 28 Claims
OG exemplary drawing
 
1. A method for transmitting signals in a wireless communication system, the method comprising:
transmitting, to a terminal, information indicating a frame structure among a plurality of frame structures including a first frame structure and a second frame structure; and
transmitting, to the terminal, a signal using the indicated frame structure,
wherein a subcarrier spacing of the second frame structure is twice as wide as a subcarrier spacing of the first frame structure, and a duration of a first transmission time interval (TTI) of the first frame structure is twice as long as a duration of a second TTI of the second frame structure,
wherein the first TTI and the second TTI each include 14 symbols and the duration of the first TTI is 1 ms and the duration of the second TTI is 0.5 ms,
wherein the subcarrier spacing of the first frame structure is 15 kHz and the subcarrier spacing of the second frame structure is 30 kHz,
wherein each of a symbol duration of a first symbol and a symbol duration of an eighth symbol in the first TTI is longer than a symbol duration of any of other 12 symbols in the first TTI, and a symbol duration of a first symbol in the second TTI is longer than a symbol duration of any of other 13 symbols in the second TTI,
wherein the symbol duration of the first symbol in the first TTI equals a sum of the symbol duration of the first symbol and a symbol duration of a second symbol in the second TTI, and two symbols in the second TTI are time synchronized with one symbol of the first TTI,
wherein a duration of a cyclic prefix of the first symbol in the second TTI is TCP,0/2+(TCP,0−TCP,1)/2 and a duration of an orthogonal frequency division multiplexing (OFDM) symbol of the first symbol in the second TTI is Tsymb/2,
wherein Tsymb is a duration of an OFDM symbol in the first TTL TCP,0 is a duration of a cyclic prefix of the first symbol in the first TTI, and TCP,1 is a duration of a cyclic prefix of a second symbol in the first TTI, and
wherein a duration of a cyclic prefix of the second symbol in the second TTI is TCP,1/2 and a duration of an OFDM symbol of the second symbol in the second TTI is Tsymb/2.