Invention Grant
- Patent Title: Hybrid automatic repeat request method and apparatus in relay wireless communication system using compressed-and-forward scheme
-
Application No.: US15324633Application Date: 2015-08-13
-
Publication No.: US10237023B2Publication Date: 2019-03-19
- Inventor: Jongbu Lim , Sungho Chae , Sunghoon Lim
- Applicant: Samsung Electronics Co., Ltd.
- Applicant Address: KR Suwon-si
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR Suwon-si
- Priority: KR10-2014-0104987 20140813
- International Application: PCT/KR2015/008501 WO 20150813
- International Announcement: WO2016/024833 WO 20160218
- Main IPC: H04J1/10
- IPC: H04J1/10 ; H04L1/18 ; H04L1/00 ; H04W84/04

Abstract:
The present disclosure relates to a 5G or pre-5G communication system which will be provided in order to support a higher data transmission rate than in 4G communication systems such as LTE. A method at a relay node according to one example of the present invention is a hybrid automatic repeat request method at the relay node in a relay wireless communication system using a compress-and-forward (CF) scheme, and may comprise the steps of: when receiving data from a previous node, performing mesh quantization so as to have redundant information at the time of quantization for transmitting, to a next node, the data received from the previous node; transmitting to the next node by channel-coding only an amount transmittable to a channel set for transmitting to the next node from upper information among the quantized information; and when receiving negative acknowledgement (NACK) from the next node, retransmitting to the next node by channel-coding only an amount transmittable to the set channel among the other information which is not transmitted among the quantized information.
Public/Granted literature
Information query