Patent ID: 9516618
Filing Date: 2016-12-06
CPC Classification: H04W

Claim Text:
1. A method for acquiring by a base station (BS) synchronization between BSs in a mobile communication system with a distributed cell structure, the method comprising: measuring a timing error with another BS as a synchronization target; and performing a synchronization operation with the other BS using at least one first sub-frame based on the measured timing error, wherein a number of symbols in the first sub-frame is less than a number of symbols in a second sub-frame, and wherein the at least one first sub-frame comprises one of a first type of sub-frame in which a cyclic prefix (CP) length of a CP included in each symbol is equal to a CP length of the second sub-frame and a second type of sub-frame in which, a CP length is variable within a preset range of CP lengths.