Invention Grant
- Patent Title: Method and device for detecting RACH preamble collision caused by multi-path channel in wireless communication system
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Application No.: US15549361Application Date: 2016-02-15
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Publication No.: US10299292B2Publication Date: 2019-05-21
- Inventor: Kitae Kim , Jiwon Kang , Kilbom Lee , Kungmin Park , Heejin Kim
- Applicant: LG ELECTRONICS INC.
- Applicant Address: KR Seoul
- Assignee: LG ELECTRONICS INC.
- Current Assignee: LG ELECTRONICS INC.
- Current Assignee Address: KR Seoul
- Agency: Lee Hong Degerman Kang Waimey
- International Application: PCT/KR2016/001475 WO 20160215
- International Announcement: WO2016/129970 WO 20160818
- Main IPC: H04W74/00
- IPC: H04W74/00 ; H04W74/08 ; H04W76/10 ; H04W88/08 ; H04J13/00 ; H04W76/27

Abstract:
Provided is a method for detecting whether a random access channel (RACH) preamble collision occurs in a wireless communication system. An evolved Node B (eNB) receives, from a first user equipment (UE), a first RACH preamble generated by using a combination of a plurality of sequences, and also receives, from a second UE, a second RACH preamble generated by using one sequence. The eNB detects whether a collision occurs between the first RACH preamble and the second RACH preamble on the basis of the received patterns of the first RACH preamble and the second RACH preamble, wherein the received patterns of the first RACH preamble and the second RACH preamble are based on channel delay caused by multiple paths.
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