杂烩移动通讯
来自Jack's Lab
(版本间的差异)
(→技术路线) |
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== 博杂名词 == | == 博杂名词 == | ||
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2G 3G 4G | 2G 3G 4G | ||
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− | + | ==扩频通讯技术== | |
[https://en.wikipedia.org/wiki/Direct-sequence_spread_spectrum#Uses DSSS] | [https://en.wikipedia.org/wiki/Direct-sequence_spread_spectrum#Uses DSSS] | ||
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[https://en.wikipedia.org/wiki/Chirp_spread_spectrum CSS(wikipedia)] | [https://en.wikipedia.org/wiki/Chirp_spread_spectrum CSS(wikipedia)] | ||
− | === | + | |
+ | ==调制解调技术== | ||
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+ | AM/FM/PSK .. | ||
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+ | ==多路访问技术== | ||
TDM FDM OFDM CDMA(spread spectrum) CSS | TDM FDM OFDM CDMA(spread spectrum) CSS | ||
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− | + | ==信道分配== | |
[https://en.wikipedia.org/wiki/UMTS#W-CDMA_.28UTRA-FDD.29 WCDMA] | [https://en.wikipedia.org/wiki/UMTS#W-CDMA_.28UTRA-FDD.29 WCDMA] | ||
[https://en.wikipedia.org/wiki/Single-carrier_FDMA SC-FDMA] | [https://en.wikipedia.org/wiki/Single-carrier_FDMA SC-FDMA] | ||
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− | == | + | |
+ | ==系统标准== | ||
LTE | LTE | ||
[https://en.wikipedia.org/wiki/LTE_(telecommunication) LTE] | [https://en.wikipedia.org/wiki/LTE_(telecommunication) LTE] | ||
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[https://en.wikipedia.org/wiki/UMTS#W-CDMA_.28UTRA-FDD.29 UMTS] | [https://en.wikipedia.org/wiki/UMTS#W-CDMA_.28UTRA-FDD.29 UMTS] | ||
+ | []http://ecee.colorado.edu/~ecen4242/gsm/index.htm GSM学习] | ||
[https://en.wikipedia.org/wiki/LPWAN LPWAN] | [https://en.wikipedia.org/wiki/LPWAN LPWAN] | ||
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+ | == 总结 == | ||
{| class="wikitable" | {| class="wikitable" |
2017年10月24日 (二) 11:49的版本
目录 |
1 博杂名词
2G 3G 4G
GSM UTSM LTE-TDD LTE-FDD
CDMA OFDM W-CDMA CDMA2000
Spread-Spectrum
802.11 WLAN 信道分配
2 扩频通讯技术
3 调制解调技术
AM/FM/PSK ..
4 多路访问技术
TDM FDM OFDM CDMA(spread spectrum) CSS
5 信道分配
6 系统标准
LTE LTE
[]http://ecee.colorado.edu/~ecen4242/gsm/index.htm GSM学习]
7 总结
分类标准 | 1 | 2 | 3 |
---|---|---|---|
世俗名 | 2G | 3G | 4G |
系统标准 | GSM PDC iDEN IS136 | UMTS CDMA2000 | LTE |
多路复用 | TDMA/FDMA | CDMA | OFDM |
信号调制 | QPSK, 8PSK, 16-QAM | ||
信号频域 | X | DSSS | X |