# US 2017/0288767 A1 · Base station signal matching device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2017/0288767 A1 - Document ID: US20170288767A1 - Status: Published application - Kind: A1 - Application number: 15/624,770 - Filed: 2017-06-16 - Published: 2017-10-05 - Earliest claimed: 2014-12-30 - Assignees: SOLiD, INC. - Applicants: SOLiD, INC. - Inventors: Yongki CHO - Web page: https://patentgrep.com/patent/US20170288767A1 ## CPC - H04B 7/15507: {Relay station based processing for cell extension or control of coverage area, (network planning with network coordinated processing with regard to cell extension H04W16/26; network topologies using dedicated repeater stations H04W84/047; terminal devices adapted for relaying to or from an other terminal H04W88/04)} - H04B 7/04: using two or more spaced independent antennas - H04B 7/15535: {Control of relay amplifier gain (amplifier gain control in general H03G3/00; gain control reducing self - or loop interference H04B7/15578)} - H04B: TRANSMISSION ## Abstract A base station signal matching device is a base station signal matching device mounted in a distributed antenna system for amplifying a received base station signal and transmitting the amplified base station signal to a user terminal. The base station signal matching device includes a first unit for generating first and second branch base station signals by using a power division function based on the base station signal, and transmitting the second branch base station signal to a third unit, and a second unit for matching the first branch base station signal to be suitable for signal processing of the distributed antenna system. ## Claims ### Claim 1 A system for transporting a base station signal to a user terminal, the system comprising: at least one interface module configured to generate first and second input base station signals based on the base station signal by using a power division function; and at least one RF (Radio Frequency) processing module configured to match the first input base station signal to be suitable for signal processing of the system. ### Claim 2 (depends on 1) The system of claim 1, wherein the interface module includes a division part configured to generate the first and second input base station signals by dividing the base station signal through the power division function; and a termination part configured to terminate the second input base station signal to a ground. ### Claim 3 (depends on 2) The system of claim 2, wherein the division part includes a coupler, and the termination part includes at least one of an attenuator, an isolator or any combination thereof. ### Claim 4 (depends on 2) The system of claim 2, wherein a power ratio of the first and second input base station signals is corresponding to a power division ratio of the division part. ### Claim 5 (depends on 2) The system of claim 2, wherein a power level of the first input base station signal is lower than a power level of the second input base station signal. ### Claim 6 (depends on 2) The system of claim 2, wherein the power division ratio of the division part is variable. ### Claim 7 (depends on 1) The system of claim 1, wherein the system further includes a heat elimination module configured to eliminate heat generated from the interface module. ### Claim 8 (depends on 1) The system of claim 1, wherein the RF processing module includes a first filter configured to have a pass band corresponding to a service frequency band of the first input base station signal; and a first variable attenuator configured to adjust power of the first input base station signal such that the first input base station signal passing through the first filter has a power level suitable for signal processing of the system. ### Claim 9 (depends on 8) The system of claim 8, wherein the RF processing module further includes a first power detector configured to detect a power level of the first input base station signal passing through the first filter. ### Claim 10 (depends on 1) The system of claim 1, wherein the system transports a user terminal signal to a base station, and wherein the RF processing module includes a second variable attenuator configured to adjust power of the user terminal signal such that the user terminal signal has a power level suitable for signal processing of the base station; and a second filter configured to have a pass band corresponding to a service frequency band of the user terminal signal of which power is adjusted by the second variable attenuator. ### Claim 11 (depends on 10) The system of claim 10, wherein the RF processing module further includes a second power detector configured to detect a power level of the user terminal signal of which power is adjusted by the second variable attenuator. ### Claim 12 (depends on 1) The system of claim 1, wherein the interface module and the RF processing module are connected to each other through a single transport medium. ### Claim 13 A base station interface unit for interfacing between at least one base station and a system for transporting at least one base station signal to a user terminal, the base station interface unit comprising: at least one interface module configured to generate first and second input base station signals based on the base station signal by using a power division function, transmit the first input base station signal to the system, and terminate the second input base station signal to a ground; and at least one heat elimination module configured to eliminate heat generated from the interface module. ### Claim 14 An interface module for matching a base station signal to be suitable for signal processing of a system that transports the base station signal to a user terminal, wherein the interface module comprising: a division part configured to generate first and second input base station signals based on the base station signal by using a power division function, transmit the first input base station signal to the system; and a termination part configured to terminate the second input base station signal to a ground.