5G??????????????????????

???????5G????????,????????????

????,??????????????????5G???????,??????????

2016?11?,???????Polar?,???????3GPP???5G eMBB(??????)????????????????????5G???????????????????,???????????????

????,????????????????????????????????????????????????ITU(????)??????“IMT-2020”??5G???????,????????????????????5G?????????????

????????????1G???2G???3G???4G?????,??????5G?????????

??????:“???????,???????,????????” ?????,??????????????????????????????????,???????

????,????????????,???????????????,????????????????16?,???????????,????????

2000???????,?3G?????

2000???,???????????“??????”,?????????????????????,?????

??,??????????????,?????????????????

???,??????????????????????????,?????????????????????????

??3G???????????????????,???????,?????????????,????PPT???????????,????????,????????????,???????????

????,???3GPP?R99?R4??,????????????3G????????

?????????(3rd Generation Partnership Project,?3GPP)??????1998?12????????????????5G????,?????????

?2000?,????,3GPP?R99????????R4????????????(???)????????

???????????(???)??????2G????????3G?R99,???????????????????????,???2G?????,????????,?????????R99??,???????????????????

???????????R4???R4??????????,??????????????????????????????????R4?????????R4??,??,????????,????????????????????

???,??:?????R4?,??????,????????,????!

????????????,????????????,??????????????40???

????????????????PPT,???:??,??????!

?????????????,?????????,???????????,??????,?????????

????,2000????,???3G??????????,????“?????”??????????,??????R5?R6????????,????????

2003???,????????????(WMC,???3GSM??)???WCDMA 3G??,????DEMO???????????,???????(UE)????????????????????????

???????,???????WCDMA?3G???????????????????????3G?????????,????????????,???????????

?????SUNDAY?????ETISALAT???3G??,????R4??,???????????????,????????3G???????????????3G????,????2007???????????????

???3G??????,??2009?1?????,???????,????R4?????R5?R6???,??????,?????????????

??TD-SCDMA 3G???????????

2000?5?,TD-SCDMA????????,???WCDMA(???UMTS)???CDMA2000????3G?????????????

TD-SCDMA?????????????????????,?????,????????TD-SCDMA?????????

????2000?????????????,??????TD???????????????????,????????TD-SCDMA??”??????????

????????????????TD-SCDMA,??????,?????????????????????????????,??????????????????,??????????????????????,??????????

????????,?????????TD-SCDMA,??????????????????

?????:“????????3G??????FDD?TDD????????FDD???????,?????????????????,??????????????TDD???,????,???TDD????????,???????????????,??????????,???????????”

?????????,??????????,????????

TD????,??????????????????,“?TD???,???????”,??????,????,“??????,???????3G”,“TD?????,???????????,?????????????,??????,??????,???????,??????????”

TD???????????FDD??,?????????TD??,???????????,?????????????????????,????????????,?????TD?????????????????????????????FDD??,??????????,?????????????

“TD-SCDMA”???????????,??????????TD-CDMA??????????CDMA????????,????????????????????????

????????:????????????????,?????????,???????????,???????????????,???????????,???????“??”?

????,????????WIMAX?3G??,????????????????????,?????????,?TD-SCDMA??3G??????

??????????,??????????????,WIMAX??3G?????2007??,??TD-SCDMA??7????

??????,WIMAX??????????INTEL???,?????????

?????:????????,????????,???????TD-SCDMA????,????,????????????,????,????TD-SCDMA???????

??3G??????????????(killer application),???3G????“?????”,?????2008??

????????,???2G????????????

2G???PK,GSM??CDMA

GSM??????2G??,????,????????????GSM?3G???,???WCDMA??,???????????,????????????

CDMA??????2G??,?????,??????????,???3G?CDMA2000?????????,??????“???”??,???????

1995?,??????GSM?????2G?????????????GSM???

GSM??????,????CDMA???????WTO??,???????CDMA???????

????????,??????????????????????????????,???????????(?????)?????????????????,?????????,??????????????

????? 2001?,??????????CDMA??,???GSM?CDMA?????????????“???”??,?????

???CDMA??????2001?2002????????????????????????2003?,???????????????,????????,????????????????,178?CDMA???

??,???????,GSM?????????CDMA?????????,??????????????????

???????,????????????????(MTK)?????,??????

2006?,????????GSM???TURNKEY(???)??????????????????GSM??,????,??????!????200????GSM????????????!

???????2G??CDMA??,??????????????????????????????(?????),???????,???,??????CDMA????

????,???2G??,GSM???CDMA!??GSM?????????CDMA????,??????CDMA?????,?????

??????“????”,??2008?,???????????CDMA?(???????)???????????GSM,??????CDMA?

????CDMA??,???????????GSM,????????,?????3G????,?????????????????????????????

???????GSM?????,?GSM??????????

?????,??????“???“?CDMA????????????,?????,??CDMA?????,CDMA????????????????

?????????????3G???,???WCDMA(???UMTS)?CDMA2000??TD-SCDMA??????CDMA?????,??????????2000-07?????,??3G????????,???????????2G?CDMA???,???????????,??????????,?????????????

??·?? Hedy Lamarr(1914?11?9?-2000?1?19?)

CDMA????????CDMA????·???????????,???“?????????”??????????,1940?,??·??????????????????????????,???“??????”,???CDMA?????????1985???,?????????????????????1997?,??CDMA?????????????????,?????????,???????????????????????????·??“??????-???”,????????:CDMA??,?????83?????2014?,????????????

2008?,????????TD-SCDMA

??????????????????????????,?????????(???),???????

2008?,????3G???????????TD-SCDMA??????????,??????TD-SCDMA?????????????WCDMA,??????,?????,???????,????????????

????????CDMA??,????CDMA2000 1x???????????3G??,??????,?CDMA2000 1x EV-DO Release A?

???????TD-SCDMA??,??????,?????????????PHS?CDMA??,???????????????????

????TD-SCDMA?????,??????

???????????????????????????????????????????WCDMA??,?TD-SCDMA????????????????,??????,????,?????

????CMCC???????????,??TD-SCDMA?3G??,???????????????????????????????????,????????????????????

????,??????????????????,???????

?????TD-SCDMA,????????,??????????,?????,??????????????(???????),?2004?4?????????TD-SCDMA/GSM???????????3G????,??????????,?????????????????????????

?????????WCDMA???,????????????????????????,186?????????????,???????????????????“??”?,?????????????

???,TD-SCDMA??????,??????????,????????????

???????????,????????,?????

4G?????,??????

3G?,?????????????TD-SCDMA??,???????????????????????????,???????4G????????????

?OFDM?MIMO?????(????CDMA)?4G LTE???,?????????????????

4G?FDD-LTE?TD-LTE????,???,?????????????????????4G??,????TD-LTE??????

????,2013?12?4???,????????,????4G??,????????????4G??,????????????????TD-LTE???

??2015?2?27?,????????????????FDD-LTE???,??TD-LTE????????????????????TD-LTE?????????2018???????FDD-LTE???,?????TD-LTE?????

??,??????????????????????TD-LTE????????????????????????,???????!

?????,???????????????????????????2G?3G?4G??,????????????

???????????????,???????????,????????????????

??????????????

????????,?4G?????????????,??????????,????????

???????????,????????

2016?6?16?,????????????????,???????????3GPP RAN???72????????NB-IoT(???????)??????????,????3GPP?????????RAN????,?????????????????NB-IoT????????2???????????????????????????????????,????????????????????????????????????????????????NB-IoT???????????

NB-IoT???????????3GPP?????????????,?GERAN?SI??,????????3205?????,??????????447?,???????????????1008?,184?????,???447???????41%?????????????,??????,???????????????????4?????????????98%??????

????,???GSM,??WCDMA?4G LTE,??5G,?????????,????????????

????????????????,??3G?4G?????????????????,2017?,???????????,????,??????????NB-IOT??????

????,?????,??????,??????? ????????,?????????,???????????????????,????????LORA???????????

5G??!

???????????????5G?????,?????????????????????????????????

?5G?,??????????????????????5G????,??????????????????????????????????????

???????????????????????????,????????????

???????????????«IP??»??,???:?????,??????????????????????????,??,???????????????????????????3Com?Emerson?Arm????????????????????????????????????????????,2015????????????769?,???????????98?,??????????????????,????????????????????????????????????????????,????????????

???????????,?????,??????????????????????,??????????????,??,?????????????????,??????????????????????????,?????????

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?????????????,??????????????,????????(??????),????,???????????????????????????????,???????????

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