KR20040054412A - A measuring device and a operating method of code domain power for base site - Google Patents

Abstract

PURPOSE: An apparatus for measuring code domain output power of a mobile communication base station and an operating method thereof are provided to quickly measure code domain power by using forward synchronous clock signal, T-cell information, transmission delay time of a base station and reception delay time of a receiving unit. CONSTITUTION: A base station(100) outputs an RF(Radio Frequency) signal of asynchronous W-CDMA to an antenna and outputs a forward synchronous clock signal, T-cell information and transmission delay time. A coupling unit(130) detects power of the RF signal outputted from the base station(100). A measuring unit(140) down-converts the RF signal applied from the coupling unit(130), detects a frame boundary position of a maximum power value by using the forward synchronous clock signal and transmission delay time information applied from the base station(100), and accumulatively adds and outputs code domain output power of a subscriber channel by units of frame.

Description

Code domain output power measuring device of mobile communication base station and its operation method {A MEASURING DEVICE AND A OPERATING METHOD OF CODE DOMAIN POWER FOR BASE SITE}

The present invention is to measure the code domain output power at the base station of an ASYNCHRONOUS spreading code division multiple access (W-CDMA) mobile communication system, and in particular, the forward synchronization signal, the T-cell information, the transmission delay time and the reception delay time. The present invention relates to improving a measurement speed of output power (CODE DOMAIN POWER) for each base station channel.

The code division multiple access method mobile communication system allows a plurality of users to simultaneously call by using the same frequency channel (FA), and there are two types of signal transmission methods, a synchronous (SYNCHRONOUS) method and an asynchronous (ASYNCHRONOUS) method.

In the synchronous method, a Walsh code is used for multiplexing, and in the asynchronous method, an OVSF (ORTHOGONAL VARIABLE SPREADING FACTOR) code is used. The system measures each user's channel output power (CODE DOMAIN POWER) more quickly to facilitate self-diagnosis of the base station system.

Below. A code domain output power measurement method of a mobile communication base station according to the prior art will be described with reference to the accompanying drawings.

1 is a functional configuration diagram of a mobile communication base station code domain output power measuring apparatus according to the prior art, and FIG. 2 is a flowchart illustrating a method of operating a code domain output power measuring apparatus according to the prior art.

Referring to FIG. 1, a conventional base station code domain output power measuring apparatus includes a multiple unit for converting a baseband (BASE BAND) signal generated by a user or subscriber into a spread code division multiple access (W-CDMA) scheme. (12); A base station 10 comprising a transmitter 14 for up-converting and outputting a signal output from the multiplexer 12 into a radio frequency (RF) signal;

Coupling unit 20 for detecting the power of the radio frequency (RF) signal output from the base station 10,

A mixer 42 for downconverting the high frequency signal applied from the coupling unit 20; A filter 44 for removing noise components by bandpassing the signal applied from the mixer 42; A receiver 40 comprising a digital converter 46 for converting an analog signal applied from the filter 44 into a digital signal;

A scramble code section (51) for generating a code signal for demodulating a scrambling transformation for dividing a cell unit of a base station from a signal applied from the receiver (40) by time (t1) information; A descrambling unit (53) for descrambling (DESCRAMBLING) by multiplying a signal applied from the scramble code unit (51) with a signal applied from the receiver (40); A first code part 55 for generating OVSF codes 256 and 0 for a pilot channel of a code division multiple access scheme; A first dechannel unit 57 for separating a subscriber channel by multiplying a code signal generated from the first code unit 55 with a signal generated from the descrambler unit 53; The power of the signal applied from the first dechannel unit 57 is summed up and output (S (t1)) by accumulating (SUMMATION) the frame power for one frame unit of 15 * 2560 chip (CHIP) period. A search unit 50 consisting of an adder 59 circulating the sum of the next time t1 information in the corresponding 15 * 2560 chip frame;

A second code unit 62 for generating an OVSF code having a maximum output power using the descrambled output signal output from the search unit 50; A second dechannel unit 64 multiplying and outputting a signal of the second code unit 62 by a descramble signal output from the search unit 50; And a second summation unit 66 for accumulating and summing the signals output from the second dechannel unit 64 for a frame unit time of a 15 * 2560 chip and outputting them as code power which is power for a user channel. The power unit 60 is configured.

The receiver 40, the searcher 50, and the power unit 60 are combined to form the measurement unit 30.

Referring to FIG. 2, a method of operating a code domain output power measuring apparatus according to the related art will be described with reference to FIG. 2. The first step (S10) of detecting power of a high frequency signal output from the base station 10 is described. And a second step (S20) of down-converting the high frequency signal detected in the step S10 to a baseband signal and initializing the chip time t1 to an initial chip time value T0. A third step (S30) of descrambled and dechannel processed signals, and a fourth step (S40) of cumulative summation (SUMMATION) processing of the power of the signal processed in the above step in units of frames of 15 * 2560 chips (S40) And a fifth step S50 of determining whether the channel power value of the chip time t1 is the maximum value S_max, and the power value is determined from the fifth step S50 of the maximum value S-max. ), Add 1 to the time t1 information and return to the third step S30 to determine 15 * 2560. When the power value is the maximum value as determined in the sixth step S60 and the fifth step S50 to repeat for a time, the power value S (t1) of the corresponding time t1 is set to the maximum value ( S_max) and setting the corresponding time t1 information to the maximum time value t_max, and the seventh step S70, and whether the time value t1 is greater than or equal to the initial chip time value T0 or the initial time. An eighth step S80 of determining whether the chip time value T0 is less than or equal to the value T0 + Tf plus the frame chip time value Tf and returning to the sixth step S60 when the condition is satisfied. And the ninth step S90 of generating the OVSF code from the power unit 250 using the maximum time value t_max information when the condition is not met in the step S80, and using the OVSF code. A tenth step of separating a subscriber channel (S100), and accumulating the subscriber channel output for a frame unit time of a 15 * 2560 chip to obtain the OVSF code domain. It consists of an eleventh step (S110) for outputting and ending at the code power (DOMAIN) of the (DOMAIN).

Hereinafter, a mobile communication base station code domain output power measuring apparatus and a method of operating the same according to the related art having the above configuration will be described in detail with reference to FIGS. 1 and 2.

Partial output power of the signal output from the base station 10 at high frequency (RF) through the coupling unit 20 (S10), and when applied to the receiving unit 40 of the measuring unit 30, the receiving unit ( 40, downconverting the high frequency (RF) signal to a baseband signal, and initializing the chip time t1 to the initial chip time value T0 and outputting it to the search unit 50 ( S20).

The search unit 50 despreads and outputs a signal input from the receiver 40 using a unique scramble code signal based on time t1 information, and outputs the first code unit 55. In the 256 OVSF channel codes, the pilot channel (CPICH: COMMON PILOT CH) code of the 0th order is multiplied by the despread signal output from the descrambler 53 to distinguish the subscriber channel, and detect and output power (S30). ).

The detected power signal is accumulated by the first summing unit 59 for frame unit time, that is, for 15 * 2560 chip time (S40), and at each chip unit time t1. It is determined whether or not the power S (t1) of the output channel is the maximum power S_max (S50). If the maximum power is not the maximum power, the chip time is set according to the next procedure in the frame unit (S60). By returning to step S30, the above 15 * 2560 chip frame unit time is repeated.

When the power of the channel detected in the determination S50 is the maximum power S_max, the power of the detected channel is set to the maximum power S_max value and the corresponding chip t1 time information is set to the maximum time t_max. Information is set (S70), and whether the chip t1 time information is greater than or equal to the initial chip time value T0 or less than or equal to the initial chip time value plus the frame chip time value (T0 + Tf). If it is determined that the condition is suitable, the feedback is returned to the sixth step S60. Otherwise, the chip time t1 information in which the maximum time value t_max is recorded is used as frame boundary position information. Output to the power unit 60 (S80).

The power unit 60 generates the OVSF code of the corresponding channel from the second code unit 62 by using the frame boundary position information applied from the search unit 50, thereby generating the second dechannel unit 64. (S90), the second dechannel unit 64 distinguishes the channel of maximum power by multiplying the OVSF code by the despread signal applied from the descrambler 53 of the searcher 50. (S100).

As described above, the maximum power of the channel based on the chip t1 time information is the power value accumulated in the 15 * 2560 chip frame unit by the second adder 66 in the code domain power of the corresponding channel. By outputting the value (S110), the code domain power for each channel of the code division multiple access method is obtained.

However, the conventional method for measuring output power of the code domain channel according to the related art includes a maximum 15 * 2560 chip frame in order to check time t1 information of the frame boundary position, which is the maximum output power in the searcher 50. Since it has to be repeated for a unit time, there is a problem that it takes a long time to detect the maximum power.

In addition, since it takes a lot of time of up to 15 * 2560 chip to check the chip time information of the frame boundary position, there is a problem that the output power of the channel can not be detected quickly.

The present invention provides a forward synchronization clock (FORWARD SYNC. CLOCK) of the base station and the delay time (T-CELL, T1) value of the base station in advance, so that the frame boundary position time information of the OVSF code for which the maximum power value is detected. The objective is to provide a way to quickly detect and measure code domain channel output power by verifying.

The present invention has been made in order to achieve the above object, the base station for outputting a high frequency signal of the asynchronous spreading code division multiple access method to the antenna and at the same time outputs the forward sync clock signal, t-cell information and transmission delay time; A coupling unit detecting power of a high frequency signal output from the base station; Down-converts the high frequency signal applied from the combiner, detects the frame boundary position of the maximum power value using the forward sync clock signal and the transmission delay time information applied from the base station, and codes the subscriber channel by the corresponding chip time information. It is characterized by consisting of a measuring unit for accumulating and outputting the domain output power in units of frames.

The present invention also provides a detection process for detecting and downconverting the high frequency output power of a base station and detecting a forward synchronization clock signal, a tissel information, a transmission delay time, and a reception delay time, respectively; A boundary process for descrambling and dechanneling an input signal using the time information according to the above process, and checking the OPS frame boundary chip time information of maximum power; A domain process of generating an OPS code of a subscriber channel using the time information according to the above process and accumulating the frame in units of frames and outputting the code domain power.

1 is a functional block diagram of a mobile communication base station code domain output power measuring apparatus according to the prior art,

2 is a flowchart illustrating a method for operating a code domain output power measuring apparatus according to the related art.

3 is a functional configuration diagram of an apparatus for measuring code domain output power of a mobile communication base station according to the present invention;

4 is a flowchart illustrating a method for operating a code domain output power measuring apparatus of a mobile communication base station according to the present invention.

5 is a frame boundary position information timing diagram according to the present invention.

** Explanation of symbols on the main parts of the drawing **

10, 100: base station 12,110: multiple part

14,120: transmitter 20,130: coupling

30,140 measuring unit 40,150 receiving unit

42,160: Mixer 44,170: Filter

46,180: digital converter 50,190: search unit

51,200: scramble code part 53,210: descramble part

55,220: first code part 57,230: first dechannel part

59,240: first summing unit 60,250: power unit

62,260: second code part 64,270: second dechannel part

66,280: second total

Hereinafter, a code domain output device of a mobile communication base station and an operation method thereof according to the present invention will be described with reference to the accompanying drawings.

3 is a functional diagram of a code domain output power measuring apparatus of a mobile communication base station according to the present invention, and FIG. 4 is a code domain output power measuring apparatus operating of a mobile communication base station according to the present invention. Fig. 5 is a frame boundary position information timing diagram according to the present invention.

Referring to FIG. 3, according to the present invention, an apparatus for measuring code domain output power of a mobile communication base station outputs a radio frequency (RF) signal of a spread code division multiple access (W-CDMA) method to a corresponding antenna (ANTENNA). At the same time, it outputs a forward sync clock signal, a T-cell information, which is a delay time, and a transmission delay time T1, thereby spreading the baseband signal generated from the subscriber by spreading code division. A multiplexing unit (110) for converting and outputting a multiple access scheme signal and simultaneously outputting a forward synchronization clock signal; Up-converting the signal applied from the multiplexer 110 to a corresponding RF signal, converting the signal to a predetermined level of power, and outputting the T-cell, which is a signal delay time of the entire base station. A base station 100 including a transmitting unit 120 for outputting CELL information and a transmission delay time T1;

A coupling unit 130 that detects and outputs a part of power of the radio frequency (RF) signal output from the base station 100 using a directional coupler (DC);

Down-converts the high frequency signal applied from the combiner 130 to a baseband signal, forward sync clock signal, T-CELL information, transmission delay time T1, and the like applied from the base station 100 The frame boundary position is detected using the received reception delay time T2 and the chip time t1, and the summed power value S (t1) is output and the frame is output. By measuring the code domain output power of the subscriber channel by the boundary,

A mixer (160) for converting the high frequency (RF) signal input from the combiner (130) to a base band (BASE BAND) signal by down converting the signal; A filter 170 for band-passing the signal output from the mixer 160 to output only a baseband signal from which noise is removed; The baseband signal of the analog output from the filter 170 is converted to a baseband signal of digital, and the reception delay time T2 is output. Receiving unit 150 consisting of a digital converter 180 to the;

A reception delay time T2 applied from the reception unit 150, a forward sync clock signal and a tessel information and a transmission delay time T1 applied from the base station 100, and a first summation unit 240 to be described later. A scramble code unit 200 that receives the chip time t1 and generates and outputs a corresponding scramble code (SCRAMBLING CODE); A descrambling unit (210) for outputting a descrambled signal by multiplying a signal of the scramble code unit (200) by a signal of a baseband code division multiple access method applied from the receiving unit (150); A first code unit 220 for outputting an ORTHOGONAL VARIABLE SPREADING FACTOR (OVSF) code of a pilot channel (CPICH) 256, 0; A first dechannel unit 230 for separating a channel by multiplying a pilot channel signal output from the first code unit 220 and an output signal of the descrambler 210 and outputting the signal as a power value signal; Cumulatively sum the power signals output from the channel unit 230, and determine whether the cumulative sum of the power of the channel has a maximum power value (S-max), and if the maximum power value does not have a maximum power value (t1) In the case where the new chip time t1 plus 1 is output to the scramble code unit 200, and the power of the channel output from the first dechannel unit 230 is the maximum power value S-max, And a signal indicating the frame boundary position by controlling the descrambler 210. The time t1 information and the descram signal are output to the power unit 250 and the accumulated power value S (t1). ) Is made up of a summation unit 240 for outputting the frame boundary. Search unit 190 to confirm;

A second code unit 260 for generating an OVSF signal of a corresponding subscriber channel based on chip time t1 information, which is frame boundary position information applied from the search unit 190; A second dechannel unit 270 for multiplying an OVSF signal output from the second code unit 260 and a descram signal applied from the search unit 190 to separate and output a channel having the maximum power; Power formed by the second summation unit 280 that accumulates the power of the channel output from the second dechannel unit 270 for 15 * 2560 chip frame periods and outputs the coded domain power of the corresponding channel. It is composed of a measuring unit 140 including a unit (250).

Referring to FIG. 4, according to the present invention, a method for operating a code domain output power measurement apparatus of a mobile communication base station detects and downconverts a high frequency (RF) output power of a base station 100, and performs a forward sync clock signal and a t-cell. By detecting the (T-CELL) information, the transmission delay time (T1), and the reception delay time (T2) of the receiver, a part of the high frequency (RF) output power of the base station 100 is detected through the combiner 130. Process (S110); Down converting the high frequency (RF) signal detected in the step S110 to a baseband signal (SBASE CONVERTING) (S120); The first summation includes a forward sync clock signal of the base station 100, a T-cell information, a transmission delay time T1, and a reception delay time T2 of the receiver 150. A detection step (S130) of detecting a chip time t1 applied from the unit 240 and initializing the initial chip time value T0 to an initial stage (INITIALIZE);

Descrambles and dechannels the input signal using the time information obtained by the detection process (S110 through S130), and the chip of the maximum power (S-max) OVSF frame boundary position (CHIP) (S140) deciphering, despreading, and dechanneling a code division multiple access (CDMA) signal applied as a baseband signal by checking time information to separate a channel (S140); Accumulating the power of the channel detected by the process (S140) for 15 * 2560 chip frame unit time (S150); Determining whether the power of the channel detected at the chip time t1 is the maximum power S-max (S160); If it is determined in step S160 that it is not the maximum power S-max, adding 1 to the corresponding chip CHIP time t1 and returning to the descramble and dechannel processing step S140 ( S170); If the detected power of the channel determined in the step S160 is the maximum power S-max, the power S (t1) of the corresponding channel is set to the maximum power S-max and the chip t1 Setting a time to a maximum chip time t-max representing frame boundary position information (S180); It is determined whether the chip time t1 is greater than or equal to the initial chip time value T0 or less than or equal to the initial chip time value T0 to (T0 + Tf) plus the frame chip time value Tf. If the condition is met, the boundary process consisting of a step (S190) to the process of adding the 1 to the chip time;

A unique OBS code of the subscriber channel is generated by using the frame boundary chip time t1 information in which the maximum chip time value t_max detected by the boundary processes S140 to S190 is recorded. (FRAME) generating code domain power by accumulating in units of time and generating a unique OVSF code of a subscriber channel using the input frame boundary chip time t1 (S200). ; Multiplying the signal output from the descrambler 210 by the OVSF code generated by the second coder 260 by the step S200 and separating and outputting a channel having the maximum power (S210); The cumulative summation of the maximum output power of the channel by the process (S210) in frame units of 15 * 2560 chip (CHIP) time, the domain process consisting of the step of outputting the code domain channel power (S220).

Hereinafter, an apparatus for measuring spreading code division multiple access (W-CDMA) mobile communication base station code domain output power and its operation method according to the present invention having the above configuration will be described in detail with reference to FIGS. 3 to 5.

The CDMA base station 100 is composed of a multiple unit 110 and a transmitter 120, the multiple unit 110, the asynchronous spreading code division multiple access baseband (BASEBAND) signal generated by the subscriber It outputs the signal as well as the forward sync clock signal.

In addition, the multiplexer 110 processes a subscriber signal in units of frames, and one frame defines a time length of 15 * 2560 chips, and one chip is an asynchronous method, and thus about 260 by 3.84 Mbps. It is time of ns.

As the code division multiple access method signal processed in units of frames is processed in synchronization with a forward sync clock signal, a forward sync clock signal is detected and used from the multiplexer 110. In this case, the measurement unit 140 may quickly detect and synchronize the frame boundary.

The signal applied to the transmitter 120 from the multiple unit 110 of the base station 100 has a predetermined delay time, and this delay time is called a T-CELL, and the T-CELL as described above. The signal input to the transmitting unit 120 is delayed for up to a high frequency (RF) signal, amplified to a certain level, and output to the corresponding antenna, and the time information delayed during the above transmission processing is transmitted. It is called).

As described above, a part of the power of the signal output to the antenna ANTENNA is detected by the coupling unit 130 formed of the directional coupler DC (S110) and down-converted by the receiving unit 150 (S120). The base station 100 is detected by outputting the forward sync clock signal, the corresponding T-CELL information, and the transmission delay time T1 to the searching unit of the measuring unit 140, and the receiving unit of the measuring unit 140. The detection unit 150 detects the reception delay time T2 generated in the process of outputting the received signal to the search unit 190 through downconversion, filter processing, and digital conversion processing. The T-cell, the transmission delay time T1 and the reception delay time T2 are initialized to set the initial chip time T0 value (S130).

A search for receiving a baseband signal and a reception delay time T2 from the receiver 150 and a base sync signal and a T-CELL information and a transmission delay time T1 from the base station 100. The unit 190 receives the forward sync clock signal, the T-CELL information, the transmission delay time T1, and the reception delay time T2 by the scramble code unit 200, and at the same time, the first summing unit. The chip time t1 is received from the 240 and the corresponding scramble code is output to the descrambler 210.

The descrambler 210 multiplies the descrambled despread signal by multiplying the input scramble code by the baseband code division multiple access scheme signal input from the receiver 150 to the first dechannel unit 230. Output to.

The first code unit 220 processes to separate a channel by outputting an OVSF code signal of a code division multiple access pilot channel (CPICH) 256, 0 to the first dechannel unit 230 (S140). .

As described above, the first summation unit 240 that receives the power S (t1) of the channel separated from the first dechannel unit 230 accumulates the power of the applied channel during a frame period by 15 * 2560 chips. In step S150, it is determined whether the power value of the channel is the maximum power value S-max (S160).

When the power value of the channel is not the maximum power value, the first adder 240 adds 1 to the current chip time value t1 and then applies it to the scramble code unit 200 again ( S170), to repeat the above process (S140 to S170).

If the power value S (t1) of the channel is determined by the first adder 240 to be the maximum power value S-max, the power value of the channel is set to the maximum power value and the corresponding chip time. (t1) information is set to the maximum chip time value t-max (S180), and the chip time t1 is greater than or equal to the initial chip time value T0 or the frame chip at the initial chip time value T0. It is determined whether the time value Tf is less than or equal to the time value T0 + Tf, and when the condition is met, the process returns to step S170 in which 1 is added to the chip time t1 (S190).

If it is determined in the determination (S190) that the condition is not met, the first adder 240 controls the descrambler 210 to record the chip time t1 in which the corresponding maximum chip time value t_max is recorded. Information is output to the power unit 250 as frame boundary information, and the descrambled signal is output to the power unit 250.

The second code unit 260 of the power unit 250 is applied from the search unit 190 and receives the OVSF signal of the corresponding subscriber channel according to the chip time t1 information which is frame boundary information. Outputting to the unit 270 (S200), the second de-channel unit 270 multiplies the descramble signal applied from the search unit 190 with the OVSF channel signal to separate the corresponding channel, and The output power is applied to the second adder 280 (S210).

The second adder 280 accumulates the power applied from the channel for a frame unit time by 15 * 2560 chips, and outputs the cumulative sum of the power of the channel as the code domain power (CODE DOMA POWER). And ends (S220).

Referring to FIG. 5, the signal output from the multiplex unit 110 of the base station 100 is generated by a forward sync clock signal (FORWARD SYNC. CLOCK). As a result, a delay occurs, and the above-described delay time is called a T-CELL, and the delay time generated by the transmitter 120 is represented as a transmission delay time T1.

That is, the TX BASE BAND signal applied to the transmitter 120 of the base station 100 is delayed by the T-CELL time from the forward synchronization clock signal FORWARD SYNC. CLOCK.

In addition, the signal processed by the transmitter 120 is delayed by T1 time by internal circuits constituting the transmitter 120 and outputted to the transmission antenna, and detected by the coupling unit 130 to detect the measurement unit ( It is applied to the receiver 150 of the 140.

The signal input to the receiver 150 of the measurement unit 140 is applied to the searcher 190 by a delay of T2 time by internal circuits constituting the receiver 150.

In order to detect a signal generated and input from the subscriber, the search unit 190 should detect a frame boundary on which pilot channel data (CPICH DATA) is recorded.

Referring to FIG. 5, the frame boundary is detected after a time T-CELL + T1 + T2 has elapsed from a forward sync clock signal (FORWARD SYNC. CLOCK), and thus the forward sync clock signal. If you check the can be detected quickly.

When the time of the forward sync clock signal and the time of T-CELL + T1 + T2 cannot be confirmed, as in the prior art, the frame unit time by the 15 * 2560 chip should be detected while consuming all of them. The forward synchronous clock signal, the T-CELL information, and the transmission delay time T1 are applied and detected from the 100, and the reception delay time T2 of the receiver 150 is also applied and detected to detect the first summation unit 240. It is necessary to repeatedly detect only the time of the chip time t1 output from

According to one experimental example of applying the configuration of the present invention as described above, since the time required to check the frame boundary position is about 100 chip (CHIP) time is sufficient, 15 * 2560 chip time by the conventional frame unit time In comparison, it detects about 300 times faster.

That is, when the present invention is applied, the code domain output power can be detected and measured about 300 times faster than the conventional technology.

The present invention having the above-described configuration uses the forward synchronization clock signal of the base station, the Tcell information, the transmission delay time, and the reception delay time of the receiver in measuring the output power of a specific code domain of the asynchronous code division multiple access method base station. Thus, there is an industrial use effect of measuring the code domain power about 300 times faster than the conventional method.

In addition, by quickly detecting and measuring the output power of each channel of the base station, the base station maintenance can be performed quickly and accurately, and there is a convenient effect in providing a high quality mobile communication service.

Claims (11)

A base station for outputting a high frequency signal of an asynchronous spreading code division multiple access method to the antenna and at the same time outputting a forward sync clock signal, a t-cell information, and a transmission delay time; A coupling unit detecting power of a high frequency signal output from the base station; Down-converts the high frequency signal applied from the combiner, detects the frame boundary position of the maximum power value using the forward sync clock signal and the transmission delay time information applied from the base station, and codes the subscriber channel by the corresponding chip time information. An apparatus for measuring code domain output power of a mobile communication base station, comprising a measuring unit configured to accumulate and output domain output power in units of frames. The method of claim 1, wherein the base station, A multiple part which converts the baseband signal of the subscriber into an asynchronous spreading code division multiple access method signal and outputs the forward sync clock signal; Code domain output power measurement of a mobile communication base station comprising a transmitter configured to up-convert the signal applied from the multi-part into a corresponding high frequency signal, output the power at a predetermined level, and output a tissel information and a transmission delay time Device. The method of claim 1, wherein the measuring unit, A receiver which down-converts, band-passes, converts the high frequency signal applied from the combiner into a digital signal, and outputs the received delay time; A search unit for deciding the frame boundary position of maximum power by performing descramble and dechannel using a signal applied from the receiver, a received delay time, a forward synchronous clock signal applied from the base station, t-cell information, and a transmission delay time; , Code domain output of a mobile communication base station comprising a power unit for inputting frame boundary position information and a descramble signal applied from the search unit and accumulating and summing the power of a corresponding channel in units of frames and outputting the code domain power. Power measuring device. The method of claim 3, wherein the receiving unit, A mixer which down-converts the high frequency signal input from the combiner and converts the signal into a baseband signal; A filter for band-passing the signal output from the mixer and outputting a baseband signal from which noise is removed; And a digital converter for converting an analog baseband signal output from the filter into a digital baseband signal and outputting a reception delay time. The method of claim 3, wherein the search unit, A scramble code unit for outputting a corresponding scramble code by using a reception delay time applied from the receiver, a forward sync clock signal, a T-cell information, a transmission delay time, and a chip time applied from the base station; A descrambler for outputting a descrambled signal by multiplying an output signal of the scramble code section by an output signal of the receiver section; A first code unit configured to output an object code of the code division multiple access scheme pilot channel; A first dechannel unit for separating a channel by multiplying an output signal of the first code unit by an output signal of the descrambler unit; When the cumulative sum of the power of the channel output from the first de-channel unit, the cumulative channel power does not have a maximum power value is increased by one chip time and output to the scramble code unit, and has a maximum power value And a first summing unit configured to control the descrambler to output corresponding chip time information and a descrambler signal to a power unit. The method of claim 3, wherein the power unit, A second code unit generating and outputting an OFS signal according to chip time information applied from the search unit; A second dechannel unit for separating a channel of maximum power by multiplying an output signal of the second code unit by a descramble signal applied from the search unit; And a second summation unit for accumulating and summing output power of the second de-channel unit for a frame period and outputting the coded domain power. A detection process of detecting and downconverting the high frequency output power of the base station and detecting the forward synchronization clock signal, the T-cell information, the transmission delay time and the reception delay time, respectively; A boundary process for descrambling and dechanneling an input signal using the time information according to the above process, and checking the OPS frame boundary chip time information of maximum power; A method of operating a code domain output power measuring apparatus of a mobile communication base station, comprising a domain process of generating an OPS code of a subscriber channel using the time information according to the process and accumulating frame-by-frame to output code domain power. The method of claim 7, wherein The detection process detects the output power of the base station and down-converts and detects and outputs the forward synchronous clock signal, the T-cell information, and the transmission delay time information of the base station. The boundary process is a chip of a frame boundary channel that generates the maximum power by outputting a scramble code and a pilot channel OFS code by using a forward synchronous clock signal, a T-cell information, a transmission delay time, and a reception delay time according to the detection process. Check the time location, The domain process is a mobile communication base station characterized in that the cumulative sum processing of the power of the separate subscriber channel by the frame unit using the frame boundary chip time and the descramble signal output in the boundary process and outputs the code domain power Code domain output power measurement method of operation. The method of claim 7, wherein the detecting process, Detecting a part of the high frequency signal output from the base station; Downconverting the high frequency signal detected in the process to a baseband signal; A method of operating a code domain output power measuring apparatus of a mobile communication base station, comprising: detecting a forward synchronization clock signal of the base station, t-cell information, a transmission delay time, and a reception delay time of a receiver. The method of claim 7, wherein the boundary process, Detecting power of a separated channel by descramble and dechannel processing by using a forward synchronization clock signal detected by the base station, a T-cell information, a transmission delay time, a reception delay time detected by a receiver, and a corresponding chip time; Accumulating and summing the detected channel power for a frame unit time; Determining whether the detected channel power is a maximum power; If the detected channel power is not the maximum power, adding 1 to the corresponding chip time and feeding back to the channel power measurement process; If the channel power detected in the determination is the maximum power, setting the channel power to the maximum power and setting the corresponding chip time to the maximum chip time; The method of operating the code domain output power measuring apparatus of a mobile communication base station, wherein the step of determining whether the chip time is the maximum time is performed by adding 1 to the chip time. The method of claim 7, wherein the domain process, Generating an OFS code using the chip time information of which the maximum power is detected; Detecting power of the separated channel by demultiplexing the generated OBS code by the descrambled signal; And accumulating the power of the separated channel for a frame unit time and outputting the coded domain power as a code domain power.