ETRI Knowledge Sharing Platform : RANDOM ACCESS PREAMBLE STRUCTURE IN EXTENDED CELLS ENVIRONMENT

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Registered RANDOM ACCESS PREAMBLE STRUCTURE IN EXTENDED CELLS ENVIRONMENT

Inventors: Moon-Sik Lee, Yi Hyoseok, Young-Hoon Kim, Jwa Hye Kyung, Bang Seung Chan

Project Code: 06MM1400, Research & Development of Radio Transmission Technology for 3G evolution, Bang Seung Chan

Abstract: Provided is a method of forming a random access preamble structure for an extended cell radius in a cellular system, the method including: generating a cyclic prefix (CP), which is the sum of a maximum delay spread and the maximum round trip delay according to the extended cell; generating a preamble sequence part. The method is used to form a preamble structure for an extended cell radius from among random access preamble structures transmitted when initial synchronization is achieved, when synchronization is lost, or when a handover is performed, during a random access process of the cellular system.

KSP Keywords: Cellular system, Cyclic prefix(CP), Delay spread, Initial Synchronization, Preamble Sequence, Random Access, Random access preamble, cell radius, random access process, round trip delay

패밀리 특허 목록
Status	Patent	Country
Registered	RANDOM ACCESS PREAMBLE STRUCTURE IN EXTENDED CELLS ENVIRONMENT
Registered	확장 셀 환경에서의 랜덤 액세스 프리앰블 구조	KOREA
Registered	RANDOM ACCESS PREAMBLE STRUCTURE IN EXTENDED CELLS ENVIRONMENT	GERMANY
Registered	RANDOM ACCESS PREAMBLE STRUCTURE IN EXTENDED CELLS ENVIRONMENT	SPAIN
Registered	RANDOM ACCESS PREAMBLE STRUCTURE IN EXTENDED CELLS ENVIRONMENT	UNITED KINGDOM
Registered	RANDOM ACCESS PREAMBLE STRUCTURE IN EXTENDED CELLS ENVIRONMENT	ITALY
Registered	RANDOM ACCESS PREAMBLE STRUCTURE IN EXTENDED CELLS ENVIRONMENT	FRANCE

218 Gajeong-ro, Yuseong-gu, Daejeon, 34129, KOREA, Contact: sh.kim@etri.re.kr

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