- Patent Title: Apparatus and method for collision avoidance between hybrid automatic repeat request transmission and device to device transmission in communication system supporting device to device scheme
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Application No.: US14569973Application Date: 2014-12-15
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Publication No.: US09629174B2Publication Date: 2017-04-18
- Inventor: Anil Agiwal , Young-Bin Chang
- 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
- Agency: Jefferson IP Law, LLP
- Priority: IN1410/KOL/2013 20131213; IN557/KOL/2014 20140519
- Main IPC: H04W72/12
- IPC: H04W72/12 ; H04L1/18 ; H04W74/08

Abstract:
A method for avoiding a collision between a hybrid automatic repeat request (HARQ) transmission and a device to device (D2D) transmission by a base station (BS) in a communication system supporting a D2D scheme is provided. The method includes determining whether a user equipment (UE) is a legacy UE or a non-legacy UE, determining non-D2D sub-frames which will collide with D2D sub-frames if the UE is the non-legacy UE, determining whether the non-D2D sub-frames are available, and scheduling a new HARQ packet for the UE in the determined non-D2D sub-frames if the determined non-D2D sub-frames are available.
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