Beginning of the 4G-LTE & Wimax,4G,LTE,wimax

소개

Beginning of the 4G-LTE & Wimax,4G,LTE,wimax

목차

1. Evolution Roadmap of Mobile Communication Technology

2. 4G`S standardization trend
IMT-2000 & IMT-Advanced
4G mobile communication characteristic
Development route of LTE, Wimax
3Gpp LTE ( Long Term Evolution)
Mobile WiMax(802.16)
Load map for 4G

3. Used technology of LTE & Wimax
DD/TDD
FDM(Orthogonal Frequency Division Multiplexing)
IMO(Multiple Input Multiple Output)
WB(초광대역 기술 : Ultra Wide Band)
Smart Antenna
SDR:Software Defined Radio(소프트웨어기반 이동통신 기술)

4. The domestic market trend
limitation of mobile data traffic and 3G
In position of domestic telecom corp

5.The world with 4G technology
The data age has come
Cloud computing
Ubiquitous computing
Offering of the rest various fusion services

6. Wibro-LTE, `can they go with together?`

본문내용

Duplexing
Allowing the two communication technology to be able to connect both ways with one antenna and differentiating
TDD(Time Division Duplexing)
Allocate time slot to raise and decline it can have advantage that transportation of asymmetry, and channel resource fluidally.
But this request to take synchronize time, also it is unfavorable in rapid transport.
FDD ( Frequency Division Duplexing)
Assignment stand in frequency to raise and decline. It is possible Full duplex.
Less lating and it have advantage rapid transportation, rambling.
Following the amount of Traffic may be it difficult changing channel resource.

- FDD guarantee bandwidth with Full-duplex But FDD has its limits so it wont work.
- If you emphasize `quality` you have to choose FDD because there are no lating and interference, but think about palpable TDD you have to take this not FDD, no doubt.
▴OFDM(Orthogonal Frequency Division Multiplexing)
1) Definition of OFDM
-Multiplex frequency cross and division (Technology)
-It divice time and frequency to division, it make from one channel to many of channel to transport.
2) Time-Frequency resource block

참고자료

· IEEE 802.16m 규격의 표준화 및 기술동향(손중제 삼성전자 수석 연구원 외)
· IMT-Advanced 시스템을 위한 IEEE 802.16m 표준화 동향 (임광재,윤철식 / 전자통신동향분석 제23권 제3호)
· IEEE 802.16m 표준화 동향 (삼성전자 통신연구소 표준연구팀(최호규 책임))
· 3GPP LTE및 LTE-Advanced 표준화 동향(ETRI 전자통신동향분석 제23권 제3호 )
· 3GPP TR 25.913 - v7.3.0, RequirementsforEUTRAandEUTRAN,
· 3GPP TS 36.300 –v8.0.0, E-UTRAandE-UTRANOverallDescription,
· Wibro에서CDMA대신OFDMA사용이유 (http://blog.naver.com/PostView.nhn)
· TDD(Time Division Duplex) & FDD(Frequency Division Duplex) (http://blog.naver.com/PostView.nhn)
· 서강대학교 COMM LAB http://eecom3.sogang.ac.kr/
· MIMO 무선기기 측정을 위한 SDR 기반의 테스트 솔루션(니케이 (http://www.neakorea.co.kr)
· 4세대 이동통신 표준 단체인 IEEE 802.16m의 표준화 동향 (김남기 / 경기대학교 컴퓨터과학과 교수)
· http://terms.co.kr/4G.htm
· http://word.tta.or.kr/terms/termsView.jsp?gubun=1&terms_num=23784
· http://thebetterday.tistory.com/2461
· http://www.zdnet.co.kr/news/news_view.asp?artice_id=20090113142904
· http://blog.daum.net/hellopolicy/6981553
· http://ko.wikipedia.org/wiki/EV-DO
· http://www.bloter.net/archives/55773
· http://sunzer09.egloos.com/2145204
· http://blog.daum.net/leekcw/7951646
· http://standards.ieee.org/board/nes/projects/802-16m.pdf
· http://www.etri.re.kr
· 아주대학교 전자공학부 김영길 교수님과 김재현 교수님(광대역통신, 이동통신네트워크) 강의노트