Method and apparatus for detecting inter-cell interference in mobile communication system

摘要

A method and an apparatus for detecting inter-cell interference in a mobile communication system are provided. A base station receives a reference signal (RS) from a terminal, generate one or more interference candidate RSs, calculate a cross correlation of the one or more interference candidate RSs and the received RS, estimate at least one of a size of a Resource Block (RB) an offset of the RB, a group index (U), and a cyclic shift (CS) by using a preset number of interference candidate RSs in an order of the large cross correlation. The base station further removes an interference signal or performs a direct reduction by using at least one of the estimated RB size, the RB offset, the timing offset, and the group index (U). According to the present disclosure, it is beneficial to mitigate or cancel inter-cell interference problem on an uplink transmission without any assistance of neighbor base stations and/or adjacent cells in a wireless communication system.

主权项

1. A method for communicating by a base station, the method comprising: receiving a reference signal (RS) transmitted from a terminal; generating one or more interference candidate RSs; calculating a cross-correlation value associated with the one or more interference candidate RSs and the received RS; estimating at least one of resource block (RB) sizes, an RB offset of the RB, a group index (U), a timing offset, and a cyclic shift (CS) in accordance with a preset number of interference candidate RSs in an order of a large-cross correlation value, wherein the RB is regarded as an interference originator; removing the interference signal or performing a direct reduction by using the one or more estimated RB sizes, the RB offset, the group index (U), the timing offset, and the cyclic shift (CS).