• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
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  • 优先权
    • 专利摘要:
    PURPOSE: A method for controlling the closed loop power of a backward link using data transfer speed in the mobile communication system is provided to carry out power control only for the power control group corresponding to data transfer speed. CONSTITUTION: A first message transmitting/receiving part transfers a transfer speed information signal, transmitted from a transfer detection part, to a base station(S1). The recognizes data transfer speed, and transmits the transfer speed information signal to a control station(S2). The control station determines a power control group to carry out power control, then transmits a power control signal to a mobile station(S3). According to the power control signal, the mobile station transmits a voice data to the base station(S4). A channel element installed in the base station receives the voice data and carries out demodulation operation only for corresponding data transfer speed(S5). A call control processor installed in the control station receives the voice data and executes call processing(S6).
    公开号:KR20000046108A
    申请号:KR1019980062784
    申请日:1998-12-31
    公开日:2000-07-25
    发明作者:남길련；정구훈
    申请人:김영환；현대전자산업 주식회사；
    IPC主号:
    专利说明:

    Closed Loop Power Control Method of Reverse Link Using Data Rate in Mobile Communication System
    The present invention relates to a closed loop power control method of a reverse link in a mobile communication system, and more particularly, to data transmission in a mobile communication system that performs power control only for a power control group corresponding to a data transmission rate. The present invention relates to a closed loop power control method of a reverse link using speed.
    Looking at the closed-loop power control method of the reverse link in the conventional mobile communication system, since the existing call control processor (Call Control Processor) was not able to recognize the data rate transmitted from the mobile station, a certain data rate (1200bps, 2400bps, 4800bps, 9600bps) data was transmitted or unconditionally power control for all power control groups. That is, the power control group without information among the power control groups of the voice data transmitted from the mobile station is transmitted with the minimum power value, and the call control processor transmits with the minimum power value because the power control group does not have the original information. It is not possible to distinguish whether the power is transmitted at the minimum power value due to the poor radio wave environment, and thus, the mobile station is notified to increase the power for the power control group that is transmitted at the minimum power. The mobile station then terminated the power control operation by ignoring this message for the power control group without information.
    However, in the conventional mobile communication system described above, in the closed loop power control method of the reverse link, bits corresponding to 1/2 of one frame are transmitted at 2400 bps in case of data transmitted at 4800 bps. In the case of data, bits corresponding to 3/4 of a frame are transmitted at a speed of 1200bps. In case of data transmitted, bits corresponding to 7/8 of a frame are bits without actual information. Although not necessary, the call control processor has a problem in that the efficiency of the call control processor is reduced by performing power control for all power control groups.
    In addition, the closed-loop power control method of the reverse link in the conventional mobile communication system does not know the transmission speed of the data transmitted from the terminal in the channel element of the base station to four transmission speeds (1200bps, 2400bps, 4800bps, 9600bps) After demodulating all of them, the most suitable one is selected by using symbol error rate and quality indicator among them. Also, since all 4 transmission rates must be demodulated, There was a problem that the system efficiency is poor.
    Accordingly, the present invention has been made to solve the conventional problems as described above, and an object of the present invention is to improve the efficiency of the channel element of the base station and the call control processor of the switching station in the mobile communication system to reduce the load of the mobile communication system The present invention provides a closed loop power control method of a reverse link using a data rate.
    In order to achieve the above object, a method for controlling closed loop power of a reverse link using a data rate in a mobile communication system includes: a mobile station for transmitting voice data to a base station; A base station for demodulating and transmitting the voice data transmitted from the mobile station to a control station; In the closed-loop power control method of the reverse link in a mobile communication system consisting of a control station for performing a call processing operation of the voice data transmitted from the base station,
    A first step of the mobile station transmitting a transmission rate information signal to a channel element of the base station; A second step of recognizing a data transmission rate after the channel element of the base station receives the transmission rate information signal, and transmitting the transmission rate information signal to the control station; After the call control processor of the control station receives the transmission rate information signal, it determines a power control group to perform power control through data randomization, and then transmits a power control signal for controlling power of the corresponding power control group. Transmitting to the third step; A fourth step of the mobile station determining a power control group through data randomization and transmitting voice data to the base station according to a power control signal transmitted from the control station; A fifth step of demodulating only a corresponding data rate after the channel element of the base station receives voice data; And a sixth step in which the call control processor of the control station receives the demodulated voice data from the base station and performs call processing.
    1 is a functional block diagram showing a closed loop power control device of a reverse link using a data transmission rate in a mobile communication system according to an embodiment of the present invention;
    FIG. 2 is an operation flowchart illustrating a closed loop power control method of a reverse link using a data transmission rate in the mobile communication system according to FIG. 1.
    <Explanation of symbols for main parts of drawing>
    100: mobile station 101: transmission rate detection unit
    103: first message transmitter / receiver 200: base station
    201: second message transmission / reception unit 203: channel element
    300: control station 301: third message transmitting and receiving unit
    303: Call Control Processor
    Hereinafter, a closed loop power control method of a reverse link using a data transmission rate in a mobile communication system according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
    1 is a control block diagram of a closed loop power control apparatus of a reverse link using a data transmission rate in a mobile communication system according to an embodiment of the present invention, and shows a data transmission rate in a mobile communication system according to an embodiment of the present invention. The closed loop power control device of the reverse link used is comprised of the mobile station 100, the base station 200, and the control station 300.
    The mobile station 100 transmits a transmission rate information signal and data randomized voice data to the base station 200, and includes a transmission rate detector 101 and a first message transmitter / receiver 103. .
    In addition, the transmission rate detection unit 101 mounted in the mobile station 100 detects a transmission rate of voice data to be transmitted to the base station 200, and then transmits a transmission rate information signal to the first message transmission / reception unit 103. It serves to send.
    Meanwhile, the first message transmitting / receiving unit 103 installed in the mobile station 100 receives a transmission rate information signal transmitted from the transmission rate detection unit 101 and transmits it to the base station 200 and then modulates it. It transmits voice data to the base station 200, and receives the power control signal transmitted from the switch 300.
    In addition, the base station 200 receives a transmission rate information signal and voice data transmitted from the mobile station 100, performs demodulation, and transmits the demodulation signal to the control station 300. It consists of a receiver 201 and a channel element 203.
    The second message transmitter / receiver 201 mounted in the base station 200 receives the transmission rate information signal and voice data transmitted from the first message transmitter / receiver 103 of the mobile station 100 and transmits the channel element ( 203, and transmits the power control signal transmitted from the control station 300 to the mobile station 100.
    Meanwhile, the channel element 203 mounted in the base station 200 receives a transmission rate information signal output from the second message transmitter / receiver 201 and recognizes a transmission rate of voice data to be transmitted. It performs the demodulation operation only for the voice data only for the corresponding baud rate recognized by.
    In addition, the channel element 203 mounted in the base station 200 serves to transmit the transmission rate information signal output from the second message transmitter / receiver 201 back to the control station 300.
    On the other hand, the control station 300 inputs the transmission rate information signal output from the channel element 203 to control the power during data transmission of the mobile station 100 through this, and inputs voice data, call processing operation It serves to perform, and comprises a third message transmitting and receiving unit 301 and the call control processor 303.
    In addition, the third message transmitter / receiver 301 mounted in the control station 300 receives a transmission rate information signal output from the channel element 203 and outputs the signal to the call control processor 303. .
    Meanwhile, the call control processor 303 mounted in the control station 300 receives power rate information signal output from the third message transmitter / receiver 301 and then performs power control through data randomization. It identifies the data power control group, and then transmits a power control signal for controlling only the identified data power control group to the mobile station 100.
    Then, the closed loop power of the reverse link using the data rate in the mobile communication system according to an embodiment of the present invention using the closed loop power control device of the reverse link using the data rate in the mobile communication system having the above configuration. The control method will be described.
    2 is an operation flowchart showing a closed loop power control method of a reverse link using a data transmission rate in a mobile communication system according to an embodiment of the present invention, where S represents a step.
    First, the transmission rate detection unit 101 mounted in the mobile station 100 detects a transmission rate of voice data to be transmitted to the base station 200 and then transmits a transmission rate information signal to the first message transmission / reception unit 103. To send. Then, the first message transmitting / receiving unit 103 mounted in the mobile station 100 receives the transmission rate information signal transmitted from the transmission rate detecting unit 101 and transmits it to the base station 200 (S1).
    Meanwhile, the second message transmitter / receiver 201 mounted in the base station 200 receives the transmission rate information signal transmitted from the first message transmitter / receiver 103 of the mobile station 100 to receive the channel element 203. To send). In addition, the channel element 203 mounted in the base station 200 recognizes a transmission rate of voice data to be transmitted after inputting a transmission rate information signal output from the second message transmitter / receiver 201, and then transmits it. The speed information signal is transmitted to the control station 300 (S2).
    Then, the third message transmitter / receiver 301 mounted in the control station 300 inputs the transmission rate information signal output from the channel element 203 and outputs the signal to the call control processor 303. The call control processor 303 mounted in the control station 300 receives the transmission rate information signal output from the third message transmitter / receiver 301 and then performs power control through data randomization. The data power control group is identified, and then a power control signal for controlling only the identified data power control group is transmitted to the mobile station 100 (S3).
    On the other hand, data randomization is a method of determining a power control group before transmitting voice data from the mobile station 100. The call control processor 303 also performs data control using a data randomization method. The power control group will be determined.
    Specifically, the above-described data randomization method, the mobile station 100 is the last 14 bits of the last second power control group and the transmission rate detection unit 101 in the power control group located in front of the frame to be transmitted Data randomization is performed using the transmission rate information signal output from. First, the mobile station 100 expresses the last 14 bits Bit as b0, b1, b2, b3, b4, b5, b6, b7, b8, b9, b10, b11, b12, b13, where b0 is the most. The oldest bit and b13 the most recent bit. Meanwhile, when the data transmission rate is 9600bps, the power control group to be transmitted is expressed as 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
    The power control group to be transmitted when the data rate is 4800bps is represented by b0, 2 + b1, 4 + b2, 6 + b3, 8 + b4, 10 + b5, 12 + b6 14 + b7,
    The power control group to be transmitted when the data rate is 2400 bps is 2 + b1 when b8 = 0 or b8 = 1, 4 + b2 when b9 = 0 or 6 + b3 when b9 = 1, 8 + b4 when b10 = 0 or 10 + b5 when b10 = 1, 12 + b6 when b11 = 0 or 14 + b7 when b11 = 1,
    When the data rate is 1200bps, the power control group to be transmitted is b0 = 0 and b12 = 0 to b0, b8 = 1 and b12 = 0 to 2 + b1, b9 = 0 and b12 = 0 to 4 + b2, 6 + b3 for b9 = 1 and b12 = 1, 8 + b4 for b10 = 0 and b13 = 0, 10 + b5 for b10 = 1 and b13 = 0, 12 + b6 for b11 = 0 and b13 = 0 When b11 = 1 and b13 = 1, the data randomization operation is terminated by expressing 14 + b7.
    In addition, the mobile station 100 inputs a power control signal output from the call control processor 303 of the control station 300, determines the power control group through the data randomization as described above, and then receives the received power control. The voice data is transmitted to the base station 200 according to the signal (S4).
    Meanwhile, the second message transmitter / receiver 201 mounted in the base station 200 inputs the voice data transmitted from the mobile station 100 and outputs the voice data to the channel element 203 and the channel element 203. After receiving the voice data output from the second message transmitter / receiver 201, the demodulation operation is performed only for the corresponding data transmission rate (S5).
    In addition, the channel element 203 mounted in the base station 200 transmits demodulated voice data to the control station 300, and the third message transmitting / receiving unit 301 of the control station 300 is The audio data output from the channel element 203 is received and output to the call control processor 303. Then, the call control processor 303 mounted in the control station 300 receives voice data output from the third message transmitter / receiver 301 and performs call processing (S6).
    As described above, according to the closed-loop power control method of the reverse link using the data rate in the mobile communication system according to the present invention, the channel element of the base station does not perform a demodulation operation for all four data rates. Since the demodulation operation is performed only for the data rate, the processing speed of the channel element is increased, thereby improving efficiency.
    Another effect is that the call control processor of the switching center selects a power control group to perform power control through the transmission rate information signal, and then performs power control only for the remaining groups except for the power control group without information. By improving the efficiency of the station's call control processor, the quality of the data can be improved, thereby reducing the load on the system.
    权利要求:
    Claims (1)
    [1" claim-type="Currently amended] A mobile station for transmitting voice data to the base station; A base station for demodulating and transmitting the voice data transmitted from the mobile station to a control station; In the closed-loop power control method of the reverse link in a mobile communication system consisting of a control station for performing a call processing operation of the voice data transmitted from the base station,
    A first step of the mobile station transmitting a transmission rate information signal to a channel element of the base station; A second step of recognizing a data transmission rate after the channel element of the base station receives the transmission rate information signal, and transmitting the transmission rate information signal to the control station; After the call control processor of the control station receives the transmission rate information signal, it determines a power control group to perform power control through data randomization, and then transmits a power control signal for controlling power of the corresponding power control group. Transmitting to the third step; A fourth step of the mobile station determining a power control group through data randomization and transmitting voice data to the base station according to a power control signal transmitted from the control station; A fifth step of demodulating only a corresponding data rate after the channel element of the base station receives voice data; And a sixth step in which the call control processor of the control station receives the demodulated voice data from the base station and performs a call processing. .
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    同族专利:
    公开号 | 公开日
    KR100551159B1|2006-05-25|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    1998-12-31|Application filed by 김영환, 현대전자산업 주식회사
    1998-12-31|Priority to KR1019980062784A
    2000-07-25|Publication of KR20000046108A
    2006-05-25|Application granted
    2006-05-25|Publication of KR100551159B1
    优先权:
    申请号 | 申请日 | 专利标题
    KR1019980062784A|KR100551159B1|1998-12-31|1998-12-31|Closed Loop Power Control Method of Reverse Link Using Data Rate in Mobile Communication System|
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