KR100252918B1 - Apparatus for saving power of dual band mobile communication device - Google Patents

Apparatus for saving power of dual band mobile communication device Download PDF

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KR100252918B1
KR100252918B1 KR1019970073255A KR19970073255A KR100252918B1 KR 100252918 B1 KR100252918 B1 KR 100252918B1 KR 1019970073255 A KR1019970073255 A KR 1019970073255A KR 19970073255 A KR19970073255 A KR 19970073255A KR 100252918 B1 KR100252918 B1 KR 100252918B1
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signal
band
pcs
power
frequency
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KR19990053596A (en
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조승현
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서평원
엘지정보통신주식회사
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Transceivers (AREA)

Abstract

PURPOSE: A power saving apparatus in a mobile communication terminal having dual bands is provided to reduce power consumption in a CDMA-type terminal, by supplying a band selection control signal as well as a power control signal to a power supply part, and thereby making power supply applied only to radio frequency parts that correspond to a service band. CONSTITUTION: A dual-band regulator(300) receives a cell signal(100) and a PCS(Personal Communication Service) signal(200) which serve as control signals for selecting a band. The regulator(300) further receives a sleep signal(12), an idle signal(13) and control signals for selecting one of transmission and reception modes. The regulator(300) combines the four control signals(100,200),(12,13) with each other, and thereby supplies voltages(600,400,700,500) to a cell radio frequency receiver, a PCS radio frequency receiver, a cell radio frequency transmitter, and a PCS radio frequency transmitter, respectively.

Description

이중대역 이동통신 단말기의 절전 장치Power saving device for dual band mobile communication terminal

본 발명은 코드분할 다중접속방식(Code Division Multiplex Access ;이하 CDMA라 약칭함) 이중대역 이동통신 단말기에 있어서 전류소모를 줄이기 위해 전원부를 효과적으로 제어하는 절전 장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power saving device that effectively controls a power supply unit in order to reduce current consumption in a code division multiplex access (hereinafter, referred to as CDMA) dual band mobile communication terminal.

일반적으로 CDMA 이중대역 이동통신 단말기는 한 단말기내에서 두 대역을 모두 지원할 수 있도록 무선주파 블록들을 구성하여 필요한 대역의 서비스를 선택적으로 받을 수 있는 단말기를 말한다.In general, a CDMA dual band mobile communication terminal refers to a terminal capable of selectively receiving a service of a required band by configuring radio frequency blocks to support both bands within a terminal.

여기서, CDMA 이중대역은 보통 800㎒의 대역을 사용하는 셀룰라(이하, Cellular라 함)대역과 보통 1.9㎓의 대역을 사용하는 피씨에스(Personal Communication Service ;이하 PCS라 약칭함)대역을 말한다.Here, the CDMA dual band refers to a cellular band (hereinafter, referred to as Cellular) band which usually uses a band of 800 MHz and a Personal Communication Service (hereinafter, referred to as PCS) band which usually uses a band of 1.9 GHz.

도 1은 종래 기술에 따른 CDMA 단일대역 이동통신 단말기를 나타낸 블록도로써 구성과 동작을 설명하면 다음과 같다.1 is a block diagram illustrating a CDMA single-band mobile communication terminal according to the prior art.

정보신호가 안테나(1)를 통해 송출되거나 유입될 때, 송신신호나 수신신호는 듀플렉서(Duplexer)(2)를 통해 안테나(1) 혹은 수신처리을 위한 과정으로 전송된다.When the information signal is transmitted or introduced through the antenna 1, the transmission signal or the reception signal is transmitted to the antenna 1 or a process for receiving processing through the duplexer (2).

안테나(1)를 통해 수신된 고주파신호는 고주파수신부(3)를 거쳐 주파수 발생부(7)에서 발생한 주파수신호와 수신 합성부(4)에서 합성되고, 합성된 신호는 중간주파수신부(5)를 거쳐 기저대역신호의 A/D변환이나 D/A변환을 행하는 기저대역 변환부(6)로 입력된다.The high frequency signal received through the antenna 1 is synthesized by the frequency synthesizing unit 4 and the frequency signal generated by the frequency generating unit 7 via the high frequency receiving unit 3, and the synthesized signal forms the intermediate frequency new unit 5. It is input to the baseband converter 6 which performs A / D conversion or D / A conversion of the baseband signal.

상기 기저대역 변환부(6)에서 변환된 신호를 받아 중간주파송신부(8)에서 중간주파신호를 처리하고, 송신 합성부(9)에서는 주파수 발생부(7)에서 발생한 주파수신호와 고주파신호로 만들기위한 주파수합성을 한다.The intermediate frequency signal is processed by the intermediate frequency transmitter 8 by receiving the signal converted by the baseband converter 6, and the transmission synthesizer 9 generates the frequency signal generated by the frequency generator 7 and the high frequency signal. Frequency synthesis for

주파수 합성에 의한 고주파송신신호는 듀플렉서(2)를 거쳐 안테나(1)를 통해 송출된다.The high frequency transmission signal by frequency synthesis is sent out through the antenna 1 via the duplexer 2.

도 2는 종래 기술에 따른 CDMA 단일대역 이동통신 단말기의 전원부를 나타낸 블록도로써, 도 1에 나타낸 단일대역을 서비스하는 이동통신 단말기의 고주파부들에 전류를 공급하는 전원부를 간략히 나타낸 것이다.FIG. 2 is a block diagram illustrating a power supply unit of a CDMA single band mobile communication terminal according to the related art, and illustrates a power supply unit supplying current to high frequency units of a mobile communication terminal serving a single band shown in FIG.

종래 기술에 따른 CDMA 단일대역 이동통신 단말기에 있어서 전원부의 구성을 살펴보면, 배터리에서 공급되는 전원인 +VBATT(11)와, 단말기에서 항상 전원이 공급되어야 하는 부분에 사용되는 전원인 +VDD(15)와, 고주파수신부(3)에 공급되는 전원인 +VRX(16)와, 고주파송신부(10)에 공급되는 전원인 +VTX(17)와, 전류소모를 줄이기위해 전원을 효과적으로 제어하는 제어신호인 Sleep_신호(12)와 Idle_신호(13)와, 전원을 입력받아 상기 제어신호가 하이(High)일 때는 전원을 공급하고 로우(Low)일 때는 전원을 공급하지않는 레귤레이터(Regulator)(14)로 이루어진다.In the CDMA single-band mobile communication terminal according to the related art, the configuration of the power supply unit includes: + V BATT 11, which is a power source supplied from a battery, and + V DD , which is a power source that is always used to supply power from a terminal. 15), + V RX (16), which is the power supplied to the high frequency receiver (3), + V TX (17), which is the power supplied to the high frequency transmitter (10), and effectively controlling the power to reduce current consumption. A regulator that receives a control signal Sleep_signal 12 and Idle_signal 13 and power and supplies power when the control signal is high and supplies no power when low. 14).

위와같이 구성된 종래 기술에 따른 CDMA 단일대역 이동통신 단말기에 있어서 전원부의 동작을 살펴보면 다음과 같다.Referring to the operation of the power supply unit in the CDMA single-band mobile communication terminal according to the prior art configured as described above are as follows.

Sleep_신호(12)가 하이일 경우는 수신모드임을 나타내고, 로우일 경우에는 Sleep모드로써 고주파송신부(10)와 고주파수신부(3)는 모두 동작하지 않으며, 단지 단말기를 제어하는 부분과 기저대역 변환부(6)의 일부분만 동작하도록 하여 전류소비를 줄일수 있다.When the Sleep_signal 12 is high, it indicates that the reception mode. If Low, the high frequency transmitter 10 and the high frequency receiver 3 do not operate. The sleep control signal and baseband conversion are used. It is possible to reduce the current consumption by operating only a part of the part (6).

Idle_신호(13)가 하이일 경우는 송신모드를 나타내고, 로우일 경우에는 수신모드인을 나타낸다.When the Idle_ signal 13 is high, it indicates the transmission mode, and when it is low, it indicates the reception mode.

따라서, Sleep_신호(12)와 Idle_신호(13)를 이용하면 송,수신모드에 따라 필요한 전원부의 제어가 가능하다.Therefore, when the Sleep_signal 12 and the Idle_signal 13 are used, it is possible to control the power supply required according to the transmission and reception modes.

또, 레귤레이터(14)는 +VBATT(11)를 입력전원으로 받아서 상기 제어신호가 하이일 경우에만 +VRX(16)나 +VTX(17)전원을 출력한다.The regulator 14 receives the + V BATT 11 as the input power and outputs the + V RX 16 or + V TX 17 power only when the control signal is high.

수신모드일 때는 Sleep_신호(12)가 하이이므로 이 신호를 받은 레귤레이터(14)를 통하여 +VRX(16)라는 전원을 생성시켜 고주파수신부(3)에 전원을 공급한다.In the reception mode, since the Sleep_ signal 12 is high, + V RX 16 is generated through the regulator 14 receiving the signal to supply power to the high frequency receiver 3.

송신모드일 때는 Idle_신호(13)가 하이이므로 이 신호를 받은 레귤레이터(14)를 통하여 +VTX(17)라는 전원을 생성시켜 고주파송신부(10)에 전원을 공급하고, 이때는 Sleep_신호(12)도 역시 하이상태이므로 +VRX(16)전원도 함께 고주파수신부(3)에 전원을 공급한다.In the transmission mode, since the Idle_ signal 13 is high, + V TX 17 is generated through the regulator 14 receiving the signal to supply power to the high frequency transmitter 10, in which case the Sleep_ signal ( 12) is also high, so + V RX (16) also supplies power to the high frequency receiver (3).

Sleep모드는 Sleep_신호(12)가 로우상태이며 이때는 단지 +VDD(15)전원만 생성되어 고주파수신부(3)와 고주파송신부(10) 모두에 전원이 공급되지 않는다.In the Sleep mode, the Sleep_signal 12 is low and only + V DD 15 power is generated, so that power is not supplied to both the high frequency receiver 3 and the high frequency transmitter 10.

이상과 같이 CDMA 단일대역 단말기에서 이용하는 것처럼 단순히 송신과 수신모드에 따라 전원을 제어하는 방법으로 Cellular대역과 PCS대역을 이용하는 이중대역 이동통신 단말기에 적용할 때에는, 만일 수신모드일 경우 Cellular대역과 PCS대역의 고주파수신부가 모두 동작하게 되므로 둘 중 한 대역에 대해 필요없는 전류소모가 생기며, 이때 생길 수 있는 PCS대역의 고주파신호에 의해서 Cellular대역의 고주파신호가 영향을 받을 수 있는 문제점이 있다.As described above, when applied to a dual-band mobile communication terminal using the cellular band and the PCS band by simply controlling the power supply according to the transmission and reception modes as used in the CDMA single-band terminal, the cellular band and the PCS band in the reception mode are used. Since all of the high-frequency receivers operate, unnecessary current consumption occurs for one of the bands, and there is a problem that the high-frequency signals of the cellular band may be affected by the high-frequency signals of the PCS band.

본 발명의 목적은 위와 같은 문제점을 해결하기 위하여 안출한 것으로, CDMA 이동통신 단말기에 전원을 제어하기 위한 제어신호인 Sleep_신호와 Idle_신호 이외에, 대역을 선택할 수 있는 제어신호를 전원부에 이용하여 서비스를 받고자하는 대역의 해당 고주파부들에만 전원을 공급함으로써 쓸데없는 전류소모를 줄이고, 두 대역중 한 대역의 고주파부가 작동하고 있을 경우 생길수 있는 고주파신호의 상호영향을 없애기 위한 CDMA 방식의 이중대역 이동통신 단말기의 절전 장치를 제공하기위한 것이다.An object of the present invention is to solve the above problems, in addition to the sleep signal and the idle signal, the control signal for controlling the power supply to the CDMA mobile communication terminal using a control signal to select a band CDMA dual band mobile communication to reduce unnecessary current consumption by supplying power only to the corresponding high frequency parts of the band to be serviced, and to eliminate the mutual influence of high frequency signals that may occur when the high frequency parts of one of the two bands are operating. It is intended to provide a power saving device for the terminal.

상기 목적을 달성하기 위한 본 발명의 특징은 다중 주파수 대역의 신호를 송출 및 유입하기 위한 이중대역 안테나와; 상기 복수의 주파수대역의 신호중 임의의 하나를 선택을 위한 스위칭부와; 상기 스위칭부에 의해 선택된 주파수대역에 해당하는 신호를 주파수 상향 내지 하향 신호처리를 하기 위한 송수신처리부와; 상기 송수신에 필요한 전원을 공급하기 위한 전원부로 구성되는 것을 특징으로 한다.Features of the present invention for achieving the above object is a dual-band antenna for transmitting and receiving signals of a multi-frequency band; A switching unit for selecting any one of the signals of the plurality of frequency bands; A transmission / reception processing unit for performing frequency up-down signal processing on a signal corresponding to the frequency band selected by the switching unit; Characterized in that it comprises a power supply for supplying power required for the transmission and reception.

도 1은 종래 기술에 따른 CDMA 단일대역 이동통신 단말기의 구성을 나타낸 블록도1 is a block diagram showing the configuration of a CDMA single-band mobile communication terminal according to the prior art;

도 2는 종래 기술에 따른 CDMA 단일대역 이동통신 단말기의 전원부를 나타낸 블록도2 is a block diagram illustrating a power supply unit of a CDMA single band mobile communication terminal according to the related art.

도 3은 본 발명에 따른 CDMA 이중대역 이동통신 단말기의 구성을 나타낸 블록도3 is a block diagram showing the configuration of a CDMA dual band mobile communication terminal according to the present invention;

도 4는 본 발명에 따른 CDMA 이중대역 이동통신 단말기의 전원부를 나타낸 블록도4 is a block diagram showing a power supply unit of a CDMA dual band mobile communication terminal according to the present invention;

도면의 주요부분에 대한 부호의 설명Explanation of symbols for main parts of the drawings

6 : 기저대역 변환부 12 : Sleep_신호6: baseband converter 12: Sleep_signal

13 : Idle_신호 20 : 이중대역 안테나13: Idle_signal 20: dual band antenna

21 : 무선주파 스위칭부 100 : Cell_신호21: radio frequency switching unit 100: Cell_ signal

200 : PCS_신호 300 : 이중대역 레귤레이터200: PCS signal 300: dual band regulator

이하, 본 발명에 따른 CDMA 이중대역 이동통신 단말기의 절전시스템에 대한 바람직한 일실시예를 첨부한 도면을 참조하여 설명한다.Hereinafter, a preferred embodiment of a power saving system of a CDMA dual band mobile communication terminal according to the present invention will be described with reference to the accompanying drawings.

도 3은 본 발명을 위한 CDMA 이중대역 이동통신 단말기의 구성을 나타낸 블록도로써, 정보신호가 이중대역 안테나(20)를 통해 송출되거나 유입될 때, 신호를 송수신하는데 있어서 서비스 받고자 하는 대역을 선택하는 제어신호에 의해 무선주파 스위칭부(21)에서 스위칭을 한다.3 is a block diagram showing the configuration of a CDMA dual band mobile communication terminal according to the present invention. When an information signal is transmitted or introduced through the dual band antenna 20, a band to be serviced is selected in transmitting and receiving a signal. The radio frequency switching unit 21 switches by the control signal.

상기 스위칭에 의해 선택된 대역은 송수신을 위한 신호를 처리하게 된다.The band selected by the switching processes a signal for transmission and reception.

먼저, Cellular대역을 사용하게 되면, 송신신호나 수신신호는 셀_듀플렉서(Cell_Duplexer)(22)를 통해 이중대역 안테나(20) 혹은 수신처리을 위한 과정으로 전송된다.First, when the cellular band is used, a transmission signal or a reception signal is transmitted through a cell_duplexer 22 to a dual band antenna 20 or a process for reception processing.

이중대역 안테나(20)를 통해 수신된 고주파신호는 셀_고주파수신부(23)를 거쳐 셀_주파수발생부(29)에서 발생한 주파수신호와 셀_수신 합성부(24)에서 합성되고, 합성된 신호는 셀_중간주파수신부(25)를 거쳐 기저대역신호의 A/D변환이나 D/A변환을 행하는 기저대역 변환부(6)로 입력된다.The high frequency signal received through the dual band antenna 20 is synthesized by the frequency signal generated by the cell_frequency generator 29 and the cell_receive synthesizer 24 via the cell_high frequency receiver 23, and then synthesized. Is input to the baseband converter 6 which performs A / D conversion or D / A conversion of the baseband signal via the cell_intermediate frequency signal receiver 25.

상기 기저대역 변환부(6)에서 변환된 신호를 받아 셀_중간주파송신부(26) 에서 중간주파신호를 처리하고, 셀_송신 합성부(27)에서는 셀_주파수발생부(29)에서 발생한 주파수신호와 고주파신호로 만들기위한 주파수합성을 한다.The intermediate frequency signal is processed by the cell_intermediate frequency transmitter 26 by receiving the signal converted by the baseband converter 6, and the frequency generated by the cell_frequency generator 29 by the cell_transmission synthesizer 27 Frequency synthesis to make a signal and a high frequency signal.

주파수 합성에 의한 고주파송신신호는 셀_듀플렉서(22)를 거쳐 이중대역 안테나(20)를 통해 송출된다.The high frequency transmission signal by the frequency synthesis is transmitted through the dual band antenna 20 via the cell_duplexer 22.

다음에 PCS대역을 사용하게 되면, 송신신호나 수신신호는 PCS_듀플렉서(PCS_Duplexer)(30)를 통해 이중대역 안테나(20) 혹은 수신처리을 위한 과정으로 전송된다.Next, when the PCS band is used, the transmission signal or the reception signal is transmitted to the dual band antenna 20 or a process for reception processing through the PCS_Duplexer 30.

이중대역 안테나(20)를 통해 수신된 고주파신호는 PCS_고주파수신부(31) 를 거쳐 PCS_주파수발생부(37)에서 발생한 주파수신호와 PCS_수신합성부(32)에서 합성되고, 합성된 신호는 PCS_중간주파수신부(33)를 거쳐 기저대역신호의 A/D변환이나 D/A변환을 행하는 기저대역 변환부(6)로 입력된다.The high frequency signal received through the dual band antenna 20 is synthesized by the frequency signal generated by the PCS_ frequency generator 37 through the PCS_high frequency signal receiver 31 and the PCS_receive synthesizer 32, and then synthesized. Is input to the baseband converter 6 which performs A / D conversion or D / A conversion of the baseband signal via the PCS_intermediate frequency signal receiver 33.

상기 기저대역 변환부(6)에서 변환된 신호를 받아 PCS_중간주파송신부(34)에서 중간주파신호를 처리하고, PCS_송신합성부(35)에서는 PCS_주파수발생부(37)에서 발생한 주파수신호와 고주파신호로 만들기위한 주파수합성을 한다.The baseband converter 6 receives the converted signal and processes the intermediate frequency signal by the PCS_intermediate frequency transmitter 34, and the frequency generated by the PCS_frequency generator 37 by the PCS_transmission synthesizer 35. Frequency synthesis to make a signal and a high frequency signal.

주파수 합성에 의한 고주파송신신호는 PCS_듀플렉서(30)를 거쳐 이중대역 안테나(20)를 통해 송출된다.The high frequency transmission signal by the frequency synthesis is transmitted through the dual band antenna 20 via the PCS_duplexer 30.

도 2는 본 발명에 따른 CDMA 이중대역 이동통신 단말기에 있어서 전원부를 나타낸 블록도로써, 대역을 선택할 수 있는 제어신호인 Cell_신호(100)와 PCS_신호(200)를 전원을 효과적으로 사용하기 위해 송신과 수신을 선택하기 위한 제어신호인 Sleep_신호(12)와 Idle_신호(13)와 같이 사용하게 되고, 이들 네가지 제어신호를 조합하여 +VBATT(11)입력전원에 의해 Cellular대역의 셀_고주파수신부(23)에 사용되는 +VCELL_RX(600), PCS대역의 PCS_고주파수신부(31)에 사용되는 +VPCS_RX(400), Cellular대역의 셀_고주파송신부(28)에 사용되는 +VCELL_TX(700), PCS대역의 PCS_고주파송신부(36)에 사용되는 +VPCS_TX(500)전원을 생성하여 공급하게 된다.FIG. 2 is a block diagram illustrating a power supply unit in a CDMA dual band mobile communication terminal according to the present invention. It is used together with the Sleep_signal 12 and Idle_signal 13, which are control signals for selecting transmission and reception, and these four control signals are combined to form cells in the cellular band by + V BATT 11 input power. + V CELL_RX (600) used in high frequency receiver 23, + V PCS_RX (400) used in PCS_ high frequency receiver 31 in PCS band, + used in cell_high frequency transmitter 28 in cellular band. The V CELL_TX 700 generates and supplies the + V PCS_TX 500 power used for the PCS_high frequency transmitter 36 in the PCS band.

본 발명에 따른 도 2와 같이 구성된 CDMA 이중대역 이동통신 단말기에 있어서 전원부의 동작을 설명한다.The operation of the power supply unit in the CDMA dual band mobile communication terminal constructed as shown in FIG. 2 according to the present invention will be described.

먼저, 대역 선택을 위한 제어신호인 Cell_신호(100)가 로우이면 Cellular모드를 나타내고, 하이이면 PCS모드를 나타내며, PCS_신호(200)는 Cell_신호(100)를 인터트시켜서 사용한다.First, if the Cell_ signal 100, which is a control signal for band selection, is low, it indicates a cellular mode, if it is high, it indicates a PCS mode, and the PCS_ signal 200 is used by intercepting the Cell_ signal 100.

즉, Cell_신호(100)가 하이이면 PCS_신호(200)는 로우가 되기 때문에 PCS모드임을 알수 있다.That is, if the Cell_ signal 100 is high, the PCS_ signal 200 goes low, so it can be seen that the PCS mode.

+VDD(15)는 항상 전원이 공급되어야할 부분에 사용하는 전원으로, +VBATT(11)입력전원은 이중대역 레귤레이터(300)를 통해 +VDD(15)를 항상 공급한다.The + V DD 15 is a power source that is always used to supply power, and the + V BATT 11 input power always supplies the + V DD 15 through the dual band regulator 300.

만약, Cell_신호(100)가 하이이고 Sleep_신호(12)가 하이이면, 이는 PCS대역의 수신모드임을 나타내므로 +VPCS_RX(400) 전원을 생성하여 PCS_고주파수신부(31)에만 공급된다.If the Cell_signal 100 is high and the Sleep_signal 12 is high, this indicates that the reception mode is in the PCS band. Thus, the + V PCS_RX 400 power is generated and supplied only to the PCS_high frequency signal unit 31. .

또, Cell_신호(100)가 로우(즉, PCS_신호가 하이)이고 Idle_신호(13)가 하이라면, 이는 Cellular대역의 송신모드임을 나타내므로 +VCELL_TX(700) 전원을 생성하여 셀_고주파송신부(28)에만 공급되며, 이때는 +VCELL_RX(600) 전원도 역시 생성되어 셀_고주파수신부(23)에 공급된다.In addition, if the Cell_signal 100 is low (i.e., the PCS_signal is high) and the Idle_signal 13 is low, this indicates that the transmission mode is in the cellular band and thus generates a + V CELL_TX 700 power supply. It is supplied only to the high frequency transmitter 28, in which case the + V CELL_RX 600 power is also generated and supplied to the cell_high frequency receiver 23.

상기와 같은 조합회로를 이용하여 제어신호를 공급함으로써, 사용자가 이용하고자 하는 대역을 선택하여 해당대역의 고주파부에만 전원을 공급하게 된다.By supplying a control signal using the combination circuit as described above, the user selects a band to be used and supplies power only to the high frequency part of the corresponding band.

본 발명은 송신과 수신을 선택할 수 있는 제어신호에 이중대역중 한 대역을 선택할 수 있는 제어신호를 더함으로써, 이들 대역을 선택할 수 있는 제어신호를 전원부에 이용하여 서비스 받고자 하는 대역의 고주파부에만 전원이 공급되도록 하여 전류소모를 줄일수 있으며, 따라서 이중대역에서 한 대역의 고주파부들이 동작하지 않으므로 인해 동작중에 대역들간의 고주파신호에 의한 영향을 없앨수 있는 효과가 있다.According to the present invention, by adding a control signal for selecting one of the dual bands to a control signal for selecting transmission and reception, the power supply is applied only to the high frequency part of the band to be serviced by using the control signal for selecting these bands for the power supply. The current consumption can be reduced by supplying the high frequency unit. Therefore, the high frequency unit of one band does not operate in the dual band, thereby eliminating the influence of the high frequency signal between the bands during operation.

Claims (4)

다중 주파수 대역의 신호를 송출 및 유입하기 위한 이중대역 안테나와;A dual band antenna for transmitting and receiving signals of multiple frequency bands; 상기 복수의 주파수대역의 신호중 임의의 하나를 선택을 위한 스위칭부와;A switching unit for selecting any one of the signals of the plurality of frequency bands; 상기 스위칭부에 의해 선택된 주파수대역에 해당하는 신호를 주파수 상향 내지 하향 신호처리를 하기 위한 송수신처리부와;A transmission / reception processing unit for performing frequency up-down signal processing on a signal corresponding to the frequency band selected by the switching unit; 상기 송수신에 필요한 전원을 공급하기 위한 전원부로 구성되는 것을 특징으로 하는 다중대역을 갖는 단말기의 절전 장치.Power saving device for a terminal having a multi-band, characterized in that the power unit for supplying the power required for the transmission and reception. 제 1 항에 있어서, 상기 전원부는 상기 단말기에 입력전원을 공급하여 송수신에 대한 신호처리에 필요한 전력을 공급하는 전원입출력부와,The apparatus of claim 1, wherein the power supply unit supplies an input power to the terminal to supply power for signal processing for transmission and reception; 주파수대역을 선택하기 위한 제어신호와 송수신모드를 선택하는 제어신호를 출력하는 제어신호부와,A control signal unit for outputting a control signal for selecting a frequency band and a control signal for selecting a transmission / reception mode; 상기 제어신호부의 신호에 따라 필요로하는 전원을 공급하기 위한 이중대역 레귤레이터로 구성되는 것을 특징으로 하는 다중대역을 갖는 단말기의 절전 장치.Power saving device of a terminal having a multi-band, characterized in that consisting of a dual-band regulator for supplying the power required according to the signal of the control signal unit. 제 1 항에 있어서, 상기 스위칭부가 주파수대역을 선택하는 과정은The process of claim 1, wherein the switching unit selects a frequency band. 상기 Cell_신호가 로우(low)이면 상기 PCS_신호는 하이(high)가 됨으로써 셀룰라주파수대역을 선택하고, 상기 Cell_신호가 하이(high)이면 상기 PCS_신호는 로우(low)가 됨으로써 피씨에스(PCS)주파수대역을 선택하는 것을 특징으로 하는 다중대역을 갖는 단말기의 절전 장치.If the Cell_ signal is low, the PCS_ signal is high and selects a cellular frequency band. If the Cell_ signal is high, the PCS_ signal is low and PC Power saving device for a terminal having multiple bands, characterized in that the S (PCS) frequency band is selected. 제1항에 있어서, 상기 다중 주파수 대역은 셀룰라(Cellular)주파수대역과 피씨에스(PCS)주파수대역인 것을 특징으로 하는 다중대역을 갖는 단말기의 절전 장치.The apparatus of claim 1, wherein the multiple frequency bands are a cellular frequency band and a PCS frequency band.
KR1019970073255A 1997-12-24 1997-12-24 Apparatus for saving power of dual band mobile communication device KR100252918B1 (en)

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