Base Station Device and Signal Transmitting Method Thereof

1. A base station device comprising: a digital signal processing device configured to separate transmission data into a first data area and a second data area, to verify whether first data detected from the first data area is pre-transmitted data, to detect second data from the second data area, and to transmit the second data via an interface; and a radio signal processing device configured to combine the first data that is received in advance via the interface and stored and the second data that is received from the digital signal processing device, and to wirelessly transmit the transmission data, wherein the first data is data of a fixed value and the second data is data that varies based on a predetermined time unit; and wherein the digital signal processing device comprises: a data selector configured to select and output the first data when the first data detected from the transmission data is not the pre-transmitted data, and to select and output the second data when the first data is the pre-transmitted data; a compressor configured to compress data selected by the data selector to a signal of a predetermined level or less; and an interface transmitter configured to transmit a signal of the first data or a signal of the second data compressed by the compressor to the radio signal processing device connected via the interface.

2. The base station device of claim 1 , wherein the signal of the first data comprises the first data corresponding to the first data area and null corresponding to the second data area.

3. The base station device of claim 1 , wherein the signal of the second data comprises the second data corresponding to the second data area and null corresponding to the first data area.

4. The base station device of claim 1 , wherein the transmission data comprises a plurality of data sections, each comprising the first data and the second data, and the first data and the second data is detected from any one data section selected by the data selector based on the predetermined time unit.

5. The base station device of claim 4 , wherein when the first data detected from a first data section of the transmission data is not the pre-transmitted data, the data selector selects and outputs the first data and after a predetermined time interval, selects and outputs the second data detected from the first data section.

6. The base station device of claim 1 , wherein the radio signal processing device comprises: a de-compressor configured to decompress compression of a signal received from the digital signal processing device connected via the interface; a storage configured to store the first data from the decompressed signal of the first data; a data combiner configured to call the first data stored in the storage and to combine the first data and the second data detected from the signal of the second data when the decompressed signal of the second data is input; and a wireless transmitter configured to wirelessly transmit the transmission data in which the first data and the second data is combined.

7. The base station device of claim 6 , wherein the storage stores code data corresponding to the signal of the first data.

8. The base station device of claim 7 , wherein, in the code data, a section corresponding to the first data area is encoded to “1” and a section corresponding to the second data area is encoded to “0”.

9. The base station device of claim 1 , wherein when a signal of the first data is received from the digital signal processing device, the radio signal processing device stores corresponding data and initializes an operation.

10. The base station device of claim 1 , wherein the first data comprises at least one of a preamble, a pilot channel, a training sequence, a primary synchronization channel, a secondary synchronization channel, and a reference signal based on a transmission scheme of the transmission data.

11. The base station device of claim 1 , wherein the first data comprises a cyclic prefix of a signal of an orthogonal frequency division multiplexing (OFDM) scheme.

12. The base station device of claim 1 , wherein the digital signal processing device and the radio signal processing device are connected via a high speed serial interface.

13. A signal transmitting method of a base station device, the method comprising: separating, by a digital signal processing device, transmission data into a first data area of a fixed value and a second data area that varies based on a time unit, verifying whether first data detected from the first data area is pre-transmitted data, detecting second data from the second data area, and transmitting the second data via an interface; combining, by a radio signal processing device, the first data that is received in advance via the interface and stored, and the second data that is received from the digital signal processing device; wirelessly transmitting, by the radio signal processing device, the transmission data in which the first data and the second data is combined; and prior to detecting the second data and transmitting the second data via the interface: transmitting, by the digital signal processing device, the first data via the interface when the first data detected from the first data area is not the pre-transmitted data; and storing, by the radio signal processing device, the first data and initializing an operation of the radio signal processing device.

14. The method of claim 13 , further comprising: encoding, by the radio signal processing device, a section corresponding to the first data area to “1” and encoding a section corresponding to the second data area to “0” when storing the first data.