KR950030534A - Data transmission device of spread spectrum communication system - Google Patents

Data transmission device of spread spectrum communication system Download PDF

Info

Publication number
KR950030534A
KR950030534A KR1019940009015A KR19940009015A KR950030534A KR 950030534 A KR950030534 A KR 950030534A KR 1019940009015 A KR1019940009015 A KR 1019940009015A KR 19940009015 A KR19940009015 A KR 19940009015A KR 950030534 A KR950030534 A KR 950030534A
Authority
KR
South Korea
Prior art keywords
message
code
arm signal
channel
arm
Prior art date
Application number
KR1019940009015A
Other languages
Korean (ko)
Other versions
KR970002957B1 (en
Inventor
김진규
김제우
박종현
Original Assignee
김광호
삼성전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 김광호, 삼성전자 주식회사 filed Critical 김광호
Priority to KR1019940009015A priority Critical patent/KR970002957B1/en
Publication of KR950030534A publication Critical patent/KR950030534A/en
Application granted granted Critical
Publication of KR970002957B1 publication Critical patent/KR970002957B1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/20—Modulator circuits; Transmitter circuits
    • 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
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation

Landscapes

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

Abstract

대역확산된 송신수신 동기 관련 정보와 코딩된 음성 정보를 Ⅰ-채널의 Ⅰ-PN코드와 Q-채널의 Q-PN와 각각 곱하여 I-ARM신호와 Q-ARM신호를 발생하고, 이를 PSK변조하여 전력 증폭 송신하는 대역 확산 통신 시스템에 관한 것이다. 본 발명에 따른 대역 확산 통신 시스템은 파이롯트 신호의 채널에서 사용되는 I-채널의 I-PN코드와 Q-채널의 Q-PN코드를 상호 교차하여 다른 신호 채널의 I-ARM신호와 Q-ARM신호를 만들어 내어 디지탈 결합시 I-ARM신호와 Q-ARM신호의 제로점 교차 현상을 제거한다.By spreading the spread-receiver synchronization-related information and the coded speech information with the I-PN code of the I-channel and the Q-PN of the Q-channel, respectively, an I-ARM signal and a Q-ARM signal are generated, and PSK modulation is performed. A spread spectrum communication system for power amplification transmission. In the spread spectrum communication system according to the present invention, the I-PN code of the I-channel and the Q-PN code of the Q-channel used in the channel of the pilot signal cross each other and the I-ARM signal and the Q-ARM signal of another signal channel. By eliminating the zero point crossing between the I-ARM signal and the Q-ARM signal during digital coupling.

이와 같이 I-ARM신호와 Q-ARM신호간의 제로점 교차를 제가함으로써 비교적 설계가 용이한 범용의 전력 증폭기를 사용하여 손쉽게 대역 확산 통신 시스템 구현할 수 있다.By eliminating the zero point crossing between the I-ARM signal and the Q-ARM signal, a spread spectrum communication system can be easily implemented using a general-purpose power amplifier that is relatively easy to design.

Description

대역 확산 통신 시스템의 데이타 전송 장치Data transmission device of spread spectrum communication system

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제2도는 본 발명에 따른 듀얼 모드 광대역 스펙트럼 확산 셀룰라 시스템의 기지국 전송 장치의 블럭도.2 is a block diagram of a base station transmission apparatus of a dual mode wideband spread spectrum cellular system according to the present invention.

Claims (5)

대역 확산 시스템의 기지국 전송 장치에 있어서, 제1메세지와 제2메세지의 입력을 월쉬 코드의 입력에 대역확산하여 출력하는 대역확산부와, 상기 대역확산부로 부터 확산된 코드 제1메세지를 미리 설정된 I-채널의 I-PN코드 및 Q-채널의 Q-PN코드와 각각 연산하여 제1메세지의 I-ARM신호와 Q-ARM신호를 발생하는 제1메세지 변환부와, 상기 확산된 제2메세지를 상기 Q-채널의 Q-PN코드와 연산하여 제2메세지의 I-ARM신호를 발생함가 동시에 상기 I-채널의 I-PN코드와 연산하여 제2메세지의 Q-ARM신호를 발생하는 제2메세지 변환부와, 상기 제1, 제2메세지 변환부로부터 각각 출력되는 I-ARM신호와 Q-ARM신호들을 각각 디지탈 가산하여 디지탈 결합된 I-ARM신호와 Q-ARM신호를 출력하는 디지탈 결합부와, 상기 디지탈 결합부로부터 출력되는 I-ARM신호와 Q-ARM신호를 입력하여 위상 시프트 키잉 변조하여 출력하는 위상 시프트 키잉 변조 송신기로 구성함을 특징으로 하는 대역 확산 시스템의 기지국 전송 장치.A base station transmission apparatus of a spread spectrum system, comprising: a spreader for spreading an input of a first message and a second message to an input of a Walsh code, and a preset code I message spread from the spreader A first message converting unit configured to generate an I-ARM signal and a Q-ARM signal of a first message by calculating the I-PN code of the channel and the Q-PN code of the Q-channel, respectively, and the spread second message A second message which generates an I-ARM signal of a second message by operating with the Q-PN code of the Q-channel and simultaneously generates an I-ARM signal of a second message by operating with an I-PN code of the I-channel A digital combiner for digitally adding an I-ARM signal and a Q-ARM signal respectively output from the first and second message converters and outputting a digitally coupled I-ARM signal and a Q-ARM signal; By inputting the I-ARM signal and the Q-ARM signal output from the digital combiner, The base station transmission device in a spread spectrum system, characterized in that the shift keying modulation and a phase shift keying modulation for outputting a transmitter. 제1항에 있어서, 상기 제1메세지는 메시지를 전송시 수신측과 송신측간의 하드웨어적 동기를 맞추기 위한 코드 동기용 메시지이며, 제2메세지는 전송장치와 수신장치간의 채널이동 및 전화관련 호처리 메시지 및 코팅된 음성 메세임을 특징으로 하는 대역 확산 시스템의 기지국 전송 장치.2. The method of claim 1, wherein the first message is a code synchronization message for synchronizing hardware between the receiving side and the transmitting side when the message is transmitted, and the second message is a channel movement and telephone-related call processing between the transmitting apparatus and the receiving apparatus. A base station transmitter in a spread spectrum system characterized by a message and a coated voice message. 대역 확산 시스템의 기지국 전송 장치에 있어서, 제1메세지와 제2메세지의 입력을 월시 코드의 입력에 대역확산하여 출력하는 대역확산부와, 상기 대역확산부로 부터 확산된 코드 제1메세지를 미리 설정된 I-채널의 I-PN코드 및 Q-채널의 Q-PN코드와 각각 연산하여 제1메세지의 I-ARM신호와 Q-ARM신호를 발생하는 제1메세지 변환부와, 상기 Q-채널의 Q-PN코드의 위상을 반전하여 위상 반전된 Q-PN코드를 출력하는 Q-PN코드 변환기와, 상기 확산된 제2메세지를 상기 위상 반전된 Q-PN코드 및 상기 I-PN코드와 각각 연산하여 제2메세지의 I-ARM신호와 Q-ARM신호를 발생하는 제2메세지 변환부와, 상기 제1, 제2메세지 변환부로부터 각각 출력되는 I-ARM신호와 Q-ARM신호들을 각각 디지탈 가산하여 디지탈 결합된 I-ARM신호와 Q-ARM신호를 출력하는 디지탈 결합부와, 상기 디지탈 결합부로부터 출력되는 I-ARM신호와 Q-ARM신호를 입력하여 위상시프트 키잉 변조하여 출력하는 위상 시프트 키잉 변조 송신기로 구성함을 특징으로하는 대역 확산 시스템의 기지국 전송 장치.A base station transmission apparatus of a spread spectrum system, comprising: a spreader for spreading an input of a first message and a second message to an input of a Walsh code, and a coded first message spread from the spreader A first message converter which generates an I-ARM signal and a Q-ARM signal of the first message by calculating the I-PN code of the channel and the Q-PN code of the Q-channel, respectively, and the Q- of the Q-channel. A Q-PN code converter for inverting the phase of the PN code to output a phase inverted Q-PN code, and calculating the spread second message with the phase-inverted Q-PN code and the I-PN code, respectively. The second message converter generates two message I-ARM signals and the Q-ARM signal, and digitally adds the I-ARM and Q-ARM signals respectively output from the first and second message converters. A digital combiner for outputting a combined I-ARM signal and a Q-ARM signal, and the digital combiner The base station transmission device in a spread spectrum system, characterized in that the phase shift keying modulation to the input I-signal and Q-ARM ARM signal and a phase shift keying modulation transmitter for outputting output from. 제3항에 있어서, 상기 제1메세지는 메시지를 전송시 수신측과 송신측간의 하드웨어적 동기를 맞추기 위한 코드 동기용 메시지이며, 제2메세지는 전송장치와 수신장치간의 채널이동 및 전화관련 호처리 메시지 및 코딩된 음성 메시지임을 특징으로 하는 대역 확산 통신 시스템의 기지국 전송 장치.4. The method of claim 3, wherein the first message is a code synchronization message for synchronizing hardware between a receiver and a transmitter when a message is transmitted, and the second message is a channel movement and call-related call processing between a transmitter and a receiver. A base station transmission apparatus of a spread spectrum communication system, characterized in that the message and the coded voice message. 제3항 또는 제4항에 있어서, 상기 Q-PN코드 변환기는, 입력되는 디지탈의 코드에 "-1"의 값을 곱셈하여 입력되는 값의 위상을 반전하는 곱셈기임을 특징으로하는 대역 확산 시스템의 기지국 전송 장치.The spread spectrum system of claim 3 or 4, wherein the Q-PN code converter is a multiplier that inverts the phase of the input value by multiplying the input digital code by a value of "-1". Base station transmission device. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940009015A 1994-04-27 1994-04-27 Data transmission apparatus in dual-mode wideband spread spectrum cellular system KR970002957B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940009015A KR970002957B1 (en) 1994-04-27 1994-04-27 Data transmission apparatus in dual-mode wideband spread spectrum cellular system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940009015A KR970002957B1 (en) 1994-04-27 1994-04-27 Data transmission apparatus in dual-mode wideband spread spectrum cellular system

Publications (2)

Publication Number Publication Date
KR950030534A true KR950030534A (en) 1995-11-24
KR970002957B1 KR970002957B1 (en) 1997-03-13

Family

ID=19381884

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940009015A KR970002957B1 (en) 1994-04-27 1994-04-27 Data transmission apparatus in dual-mode wideband spread spectrum cellular system

Country Status (1)

Country Link
KR (1) KR970002957B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100421531B1 (en) * 1995-12-26 2004-07-01 샤프 가부시키가이샤 Spectrum spread communication method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100421531B1 (en) * 1995-12-26 2004-07-01 샤프 가부시키가이샤 Spectrum spread communication method

Also Published As

Publication number Publication date
KR970002957B1 (en) 1997-03-13

Similar Documents

Publication Publication Date Title
CN100358247C (en) Reextending circuit and extending method
FI961823A0 (en) Transmission of a variable rate signal in a spread spectrum communication system using Coset coding
US5940434A (en) Walsh-QPSK chip modulation apparatus for generating signal waveform in a direct sequence spread spectrum communication system
KR970004397A (en) Code division multiple access base station transmitting apparatus
IL111450A0 (en) Method and apparatus for bifurcating signal transmission over in-phase and quadrature phase spread spectrum communication channels
EP0822670A3 (en) Sequence generation for asynchronous spread spectrum communication
KR970031421A (en) SPREAD SPECTRUM COMMUNICATIONS SYSTEM
GB2352944B (en) Apparatus and method for moduating data message by employing orthogonal variable spreading factor (OVSF) codes in mobile communication sytem
KR950704875A (en) Code Division Multiple Access Transmitters and Receivers
KR100233836B1 (en) Modulation apparatus of mc dsss system
AU6008599A (en) Device and method for generating spreading code and spreading channel signals using spreading code in CDMA communication system
CA2093566A1 (en) Radio communication systems
KR950016120A (en) Frequency Division Multiple Access Communication Device and Method
KR970055807A (en) Radio communication device for transmitting and receiving radio frequency signal and operation method in communication network
JP4463458B2 (en) Signal generator and decoder
KR950030534A (en) Data transmission device of spread spectrum communication system
JPH07202751A (en) Spread spectrum transmission method and spread spectrum transmitter
KR20020062671A (en) A decision feedback loop apparatus and method for channel estimation and de-rotation using burst pilot bits
RU2001134590A (en) Device for transmitting and receiving discrete information using wideband noise-like signals in code division multiplexing
US7212577B2 (en) Information transfer methods
JP3388212B2 (en) Spread spectrum communication equipment
KR20010073027A (en) Transmission over bundled channels in a cdma mobile radio system
KR100249864B1 (en) Apparatus for modulating signal of wireless subscriber line base station using epld
KR970008671B1 (en) Data transceiver
KR100399198B1 (en) Spread communications system using partial response

Legal Events

Date Code Title Description
A201 Request for examination
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20120628

Year of fee payment: 16

FPAY Annual fee payment

Payment date: 20130617

Year of fee payment: 17

EXPY Expiration of term