KR100299028B1 - Radio frequency controller in gsm terminal unit - Google Patents

Radio frequency controller in gsm terminal unit Download PDF

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Publication number
KR100299028B1
KR100299028B1 KR1019980043612A KR19980043612A KR100299028B1 KR 100299028 B1 KR100299028 B1 KR 100299028B1 KR 1019980043612 A KR1019980043612 A KR 1019980043612A KR 19980043612 A KR19980043612 A KR 19980043612A KR 100299028 B1 KR100299028 B1 KR 100299028B1
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control signal
clock
register
control
unit
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KR19990062533A (en
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박정훈
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윤종용
삼성전자 주식회사
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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
    • H03J1/0008—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J9/00—Remote-control of tuned circuits; Combined remote-control of tuning and other functions, e.g. brightness, amplification
    • H03J9/02—Remote-control of tuned circuits; Combined remote-control of tuning and other functions, e.g. brightness, amplification using radio transmission; using near-field transmission
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02—Automatic frequency control
    • H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
    • H03J7/047—Automatic frequency control using an auxiliary signal, e.g. low frequency scanning of the locking range or superimposing a special signal on the input signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Transceivers (AREA)

Abstract

PURPOSE: An RF(Radio Frequency) control device of a GSM(Global System for Mobile) terminal is provided to reduce unnecessary power consumption by simplifying a design of an RF control device. CONSTITUTION: A TDMA(Time Division Multiple Access) counter(21) generates an interrupt each TDMA. A control portion(20) receives the interrupt from the TDMA counter(21), controls an operation of a clock generation portion(22) for generating a clock, and a predetermined control signal. The control portion(20) provides clocks to a frequency synthesis register(23) and an AGC register(24) and transmits the data to an RF interface portion(25) by controlling the clock generation portion(22). The AGC register(24) outputs an RF control signal for RF power to an RF interface portion(25) according to the clock of the clock generation portion(22) and a predetermined control signal of the control portion(20).

Description

지에스엠 단말기의 알에프부 제어장치{RADIO FREQUENCY CONTROLLER IN GSM TERMINAL UNIT}RF control unit of GSM terminal {RADIO FREQUENCY CONTROLLER IN GSM TERMINAL UNIT}

본 발명은 GSM(Global System for Mobile) 단말기에 관한 것으로, 특히 무선주파수(Radio Frequency; 이하 "RF"라 한다)부를 제어하는 장치에 관한 것이다.The present invention relates to a Global System for Mobile (GSM) terminal, and more particularly, to an apparatus for controlling a radio frequency (hereinafter referred to as "RF") unit.

GSM 단말기에서 RF부를 제어하는 장치로는 주파수를 합성하는 주파수 합성부와 RF 파워(power)를 제어하는 자동 이득 제어기(auto gain controller; 이하 "AGC"라 한다)로 구성된다. 그런데 종래의 GSM 단말기에서는 주파수 합성부와 AGC가 하나로 결합되였고, 또한 RF 제어를 제어부에 의해서 프로그래밍이 가능하도록 설계되었다.An apparatus for controlling an RF unit in a GSM terminal includes a frequency synthesizer for synthesizing frequencies and an auto gain controller (hereinafter referred to as "AGC") for controlling RF power. However, in the conventional GSM terminal, the frequency synthesizer and the AGC are combined into one, and the RF control is designed to be programmable by the controller.

도 1은 종래의 GSM 단말기에서 RF부 제어장치의 구성도를 나타낸 것이다.Figure 1 shows the configuration of the RF control unit in a conventional GSM terminal.

도면을 참조하면 도면 참조번호 10은 제어부로서, GSM 단말기의 동작을 전반적으로 제어한다. 14는 주파수 합성부와 AGC가 하나로 결합된 RF 제어부로서, 프로그램 상태부(11)와, 레지스터부(12)와, 직렬(serial) 인터페이스부(13)로 이루어져 제어부(10)의 제어를 받아 RF부를 제어하는 신호를 발생하여 RF 인터페이스부로 출력한다. 상기 프로그램 상태부(11)는 제어부(10)로부터 클럭과 제어신호를 받아 RF 제어부(14)의 자체 동작을 제어한다. 상기 레지스터부(12)는 각 상태에 따른 값들을 출력하기 위해 여러 값들을 저장한다. 상기 직렬 인터페이스부(13)는 RF 인터페이스부와의 직렬 인터페이스를 수행한다.Referring to the drawings, reference numeral 10 is a control unit, and controls overall operations of the GSM terminal. 14 is an RF control unit in which a frequency synthesizer and an AGC are combined into one, and is composed of a program state unit 11, a register unit 12, and a serial interface unit 13 under the control of the control unit 10. Generates a signal for controlling the unit and outputs it to the RF interface unit. The program state unit 11 receives a clock and a control signal from the controller 10 and controls its operation of the RF controller 14. The register unit 12 stores several values to output values according to each state. The serial interface unit 13 performs a serial interface with the RF interface unit.

상기한 바와 같이 종래에는 독립적으로 동작 수행이 가능한 주파수 합성부와 AGC가 하나로 결합됨으로써 동작을 하지 않아도 되는 기간에도 함께 동작하게 되었다. 그로 인해 불필요한 전력 소모가 발생하였고, 또한 프로그래밍이 가능하게 설계함으로써 많은 레지스터(약4000 gate 이상)들이 불필요하게 추가되었다. 그런데 GSM 단말기는 제어부에 의하여 항상 제어되기 때문에 실적으로 프로그램 기능이 추가하지 않아도 된다. 단지 RF부에 데이터를 넘겨주어야 하는 정확한 시간과 데이터만을 알고 있으면 된다.As described above, in the related art, the frequency synthesizer and the AGC, which can perform the operation independently, are combined into one to operate together in a period in which the operation is not required. This resulted in unnecessary power dissipation, and the design was programmable, which added many resistors (about 4000 gates or more) unnecessarily. However, since the GSM terminal is always controlled by the control unit, there is no need to add a program function as a result. You only need to know the exact time and data you need to pass the data to the RF section.

따라서 본 발명의 목적은 GSM 단말기에서 전원 소모를 줄이고 설계를 단순화한 RF 제어 장치를 제공함에 있다.Accordingly, an object of the present invention is to provide an RF control apparatus which reduces power consumption and simplifies design in a GSM terminal.

상기한 목적을 달성하기 위해서 본 발명은 시분할 다중 접속(Time Division Multiple Access; 이하 "TDMA"라 한다) 카운터와, 클럭발생부를 가지는 GSM 단말기의 RF부를 제어하는 장치에 있어서, 제어부와 RF 제어부로 이루어진다. 상기 제어부는 상기 TDMA 카운터의 인터럽트를 받아 상기 클럭발생부로부터 클럭을 발생시키도록 제어하며, 소정의 제어신호를 출력한다. 상기 RF 제어부는 상기 클럭발생부로부터 발생되는 상기 클럭과 상기 제어부로부터 출력되는 상기 제어신호에 의해 주파수 합성에 대한 RF 제어신호를 출력하는 주파수 합성 레지스터와, 상기 클럭발생부로부터 발생되는 클럭과 상기 제어부로부터 출력되는 상기 제어 신호에 의해 RF 파워에 대한 RF 제어신호를 출력하는 AGC 레지스터로 이루어진다.In order to achieve the above object, the present invention provides a time division multiple access (TDMA) counter and an apparatus for controlling an RF unit of a GSM terminal having a clock generation unit, comprising a control unit and an RF control unit. . The control unit controls to generate a clock from the clock generator by receiving the interrupt of the TDMA counter, and outputs a predetermined control signal. The RF control unit includes a frequency synthesizing register for outputting an RF control signal for frequency synthesis by the clock generated from the clock generator and the control signal output from the controller, a clock generated from the clock generator, and the controller. The AGC register outputs an RF control signal for RF power by the control signal outputted from the control unit.

도 1은 종래의 지에스엠 단말기에서 알에프부 제어장치의 구성도.1 is a configuration of the RF control unit in the conventional GSM terminal.

도 2는 본 발명의 실시예에 따른 지에스엠 단말기에서 알에프부 제어장치의 구성도.Figure 2 is a block diagram of the RF control unit in the GSM terminal according to an embodiment of the present invention.

이하 본 발명에 따른 바람직한 실시예를 첨부한 도면을 참조하여 상세히 설명한다. 이하에서 본 발명을 설명함에 있어서, 관련된 공지 기능 혹은 구성에 대한 구체적인 설명이 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우 그 상세한 설명을 생략한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

도 2는 본 발명의 실시예에 따른 GSM 단말기에서 RF 제어장치의 구성도를 나타낸 것이다. 도 2에서 RF 제어부(26)는 주파수 합성부와 AGC를 분리하고, 각각 간단한 쉬프트(shift) 레지스터로 구성한 것으로, 주파수 합성 레지스터(23)와 AGC 레지스터(24)로 구성하였다.2 is a block diagram of an RF control apparatus in a GSM terminal according to an embodiment of the present invention. In FIG. 2, the RF control unit 26 separates the frequency synthesizer and the AGC, and each constitutes a simple shift register, and includes the frequency synthesizer 23 and the AGC register 24.

도면을 참조하여 구성을 설명하면 다음과 같다.The configuration will be described with reference to the drawings.

GSM은 TDMA 방식을 사용하는 시스템이다. 따라서 모든 GSM 방식을 사용하는 시스템에는 TDMA 카운터(21)를 구비하고, 이를 이용하여 시스템의 동기를 기지국에 맞춘다. 상기 시스템은 1TDMA를 기본으로 카운팅을 수행하며 1TDMA는 8 타임 슬롯(time slot)으로 구성된다. 그리고 TDMA 카운터(21)는 매 TDMA 마다 인터럽트를 발생시켜서 제어부(20)로 하여금 다음 TDMA에서 사용할 값들과 타이밍 정보를 베이스 밴드의 모든 레지스터에 기록하게 하며, TDMA 프레임 수(예: 0-5000에서 0-2715647로)를 증가시키게 한다. TDMA 카운터(21)에서 인터럽트가 발생하면 제어부(20)는 미리 계산해두었던 타임과 사용할 값들을 레지스터에 셋팅(setting)한다. TDMA 카운터(21)가 주파수 합성부와 AGC 제어를 위해 셋팅된 시간과 같아지면 제어부(20)는 클럭발생부(22)를 제어하여 클럭을 주파수 합성 레지스터(23)와 AGC 레지스터(24)에 각각 공급하여 RF 인터페이스부(25)로 데이터를 전송하게 한다. 즉, 클럭발생부(22)로부터 발생되는 클럭과 제어부(20)로부터 출력되는 소정의 제어신호에 의해 주파수 합성 레지스터(23)에서 주파수 합성에 대한 RF 제어신호를 RF 인터페이스부(25)로 출력한다. 그리고 클럭발생부(22)로부터 발생되는 클럭과 제어부(20)로부터 출력되는 소정의 제어 신호에 의해 AGC 레지스터(24)는 RF 파워에 대한 RF 제어신호를 RF 인터페이스부(25)로 출력한다. 상기 RF 제어신호 데이터를 받아 RF부에서는 동작을 수행한다. 그리고 주파수 합성부는 수신(RX)과 송신(TX)을 위해서 1TDMA에 두 번 수행되며, AGC는 1TDMA에 수신(RX)을 위해 한번 수행된다.GSM is a system using the TDMA method. Therefore, a system using all GSM systems is provided with a TDMA counter 21, and the synchronization of the system is adjusted to the base station using the same. The system performs counting based on 1TDMA, and 1TDMA consists of 8 time slots. The TDMA counter 21 generates an interrupt every TDMA, causing the control unit 20 to write values and timing information for use in the next TDMA to all registers of the baseband. The number of TDMA frames (for example, 0 to 5000 to 0). To -2715647). When an interrupt occurs in the TDMA counter 21, the control unit 20 sets a pre-calculated time and a value to be used in a register. When the TDMA counter 21 is equal to the time set for the frequency synthesizer and AGC control, the control unit 20 controls the clock generator 22 to pass the clock to the frequency synthesizer register 23 and the AGC register 24, respectively. Supply the data to the RF interface unit 25. That is, the frequency synthesizing register 23 outputs an RF control signal for frequency synthesizing to the RF interface unit 25 by a clock generated from the clock generator 22 and a predetermined control signal output from the control unit 20. . The AGC register 24 outputs an RF control signal for RF power to the RF interface unit 25 by a clock generated from the clock generator 22 and a predetermined control signal output from the controller 20. The RF unit receives the RF control signal data and performs an operation. The frequency synthesizer is performed twice in 1TDMA for reception (RX) and transmission (TX), and AGC is performed once for reception (RX) in 1TDMA.

상기한 바와 같이 본 발명은 주파수 합성부와 AGC를 분리함으로써 각각의 필요한 구간에만 동작하여 전원 소비를 줄일 수 있고, 종래의 프로그램 기능을 제거하여 레지스터에 사용된 불필요한 게이트를 줄일 수 있다.As described above, the present invention can reduce power consumption by operating only each necessary section by separating the frequency synthesizer and the AGC, and reduce unnecessary gates used in the register by removing the conventional program function.

Claims (1)

시분할 다중 접속 카운터와, 클럭발생부를 가지는 지에스엠 단말기의 알에프부를 제어하는 장치에 있어서,An apparatus for controlling an RF unit of a GSM terminal having a time division multiple access counter and a clock generation unit, 상기 시분할 다중 접속 카운터의 인터럽트를 받아 상기 클럭발생부로부터 클럭을 발생시키도록 제어하며, 소정의 제어신호를 출력하는 제어부와,A control unit which receives the interrupt of the time division multiple access counter and generates a clock from the clock generation unit and outputs a predetermined control signal; 상기 클럭발생부로부터 발생되는 상기 클럭과 상기 제어부로부터 출력되는 상기 제어신호에 의해 주파수 합성에 대한 알에프 제어신호를 출력하는 주파수 합성 레지스터와, 상기 클럭발생부로부터 발생되는 클럭과 상기 제어부로부터 출력되는 상기 제어 신호에 의해 알에프 파워에 대한 알에프 제어신호를 출력하는 자동 이득 제어기 레지스터로 이루어지는 알에프 제어부를 구비함을 특징으로 하는 장치.A frequency synthesizing register for outputting an RF control signal for frequency synthesis by the clock generated from the clock generator and the control signal output from the controller, a clock generated from the clock generator and the output from the controller And an RF control section comprising an automatic gain controller register for outputting the RF control signal for RF power by the control signal.
KR1019980043612A 1997-12-30 1998-10-19 Radio frequency controller in gsm terminal unit Expired - Fee Related KR100299028B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9727416A GB2333011B (en) 1997-12-30 1997-12-30 Radio frequency controller in group special mobile terminal unit
GB9727416.1 1997-12-30

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KR19990062533A KR19990062533A (en) 1999-07-26
KR100299028B1 true KR100299028B1 (en) 2001-09-22

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GB2333011A (en) 1999-07-07
GB2333011B (en) 1999-11-10
KR19990062533A (en) 1999-07-26

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