Patent ID: 9571184
Date: 2017-02-14
CPC Classifications: H04B,H04J,H04W

Claim:
1. A signal processing system comprising: a digital unit connected to a core system and configured to process radio signals; and a first cell having a plurality of first radio units adjacent to a second cell having a plurality of second radio units, wherein the first and second radio units are physically isolated from the digital unit and configured to convert and amplify digital signals received from the digital unit, to transmit the amplified signals to a terminal, and to receive uplink signal strength from the terminal and to transmit the same to the digital unit based on a multi-antenna technology, and wherein the digital unit determines whether the terminal is located in the boundary region based on the uplink signal strength of the terminal, and wherein one of the first radio units of the first cell and one of the second radio units of the second cell transmit the same reference signal, and one of the first radio units of the first cell and one of the second radio units of the second cell transmit the same data to the terminal using the same channel other than the one occupied by the reference signal when the terminal is located in the boundary region.