The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 27, 2018
Filed:
Dec. 29, 2015
Electronics and Telecommunications Research Institute, Daejeon, KR;
Juho Park, Daejeon, KR;
Young Seog Song, Daejeon, KR;
Jun Hwan Lee, Seoul, KR;
Eun-Young Choi, Daejeon, KR;
Young Jo Ko, Daejeon, KR;
Seung Chan Bang, Daejeon, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
In a communications system using a plurality of beams, a terminal determines a beam to be communicated with the terminal among the plurality of beams, determines one sequence among sequences allocated to the determined beam as a beam based random access preamble, and transmits the beam based random access preamble through the determined beam. In addition, if a random access response for the beam based random access preamble is not received from a base station for a set interval, the terminal determines one sequence among sequences in a cell based random access preamble collection as a cell based random access preamble and transmits the cell based random access preamble.