Hiperlan-1

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www.ETSI.org

• ETSI ??? HiperLAN ??
• High Performance Radio LAN
• ????????? ???

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Outline

• ???? FCC ETSI? NCC
• ????
• ????
• Hiperlan type I ?Hiperlan type II
• ????
• TDMA OFDM ATM
• ??
• Hiperlan????
• ?802.11??
• ?????

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?????(FCC)

• ??????????,?1934?????????(FCC),????????,????????FC
  C????????Radio????????????????FCC??????50???????,?
  ???????????????????
• WLAN??????FCC????FCC??WLAN????????????????????????
  WLAN??????????

4
ETSI??

• ??????????????????????,??????????????ETSI????688??
  ?,??55???,???????????????????????????????????????,
  ?????????ETSI?????????????,????????????,??????????
  ??,????????????????,?????????????
• ETSI?????????,??IEEE????
• ITU ????????????
• ??????

5
????????

• ????????10???3???NCC???,10?????????????,????NCC???
  ,?????????15?????????????,2??????????,??NCC???????
  ????
• NCC?13??????,???4?????3????2????2???????1???????1?
  ??????????????????????????
• ????????? NCC

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ISM?? Industrial/Scientific/Medical

• FCC???ISM???3???,???900MHz?2.4GHz?5.8GHz?????Band?
  ??24GHz?60GHz,???Band?????
• ?1986?,?WLAN???????,?????????900MHz??
• 2.4GHz WLAN??RF????????????,??????,???1800?1900MHz
  ?????

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ISM (Industrial, Scientific Medical) ?? 902
928 MHz 2.4 2.4835 GHz 5.725 5.850 GHz
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?????

• ??????????????,????FCC???????????FCC???????,??????
  ??????????????????
• ????????????????????????,???????????????WLAN,?????
  WLAN,?????????????WLAN?????,???????,????????WLAN??
  ???

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• HiperLAN2??????????????????????????????????2.4GHz?
  ??,??????????80MHz????????,??????????????????2.4GH
  z????????????,?????????????????5GHz????????,??
• ???,5.155.35?5.7255.825GHz??????????300MHz?
• ???,5.155.35?5.4705.725GHz???????????300MHz?
• ??????????????

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ISM VS UNII

• ISM ???????????????
• UNII???????????
• FHSS(????) gtDSSS(???? )gtOFDM
• FCC??1986???ISM
• FCC1996??? UNII(Unlicensed NII)??
• UNII???5GHz?????,???UNII-1?5.1255.25GHz,UNII-2?5.
  255.35GHz,UNII-3?5.7255.825GHz??
• 5.8GHz??? ?

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UNII?

• ???? ,????
• UNII-1?5.155.25GHz,????????,?????802.11a?????,Blu
  etooth 2.0?HiperLAN 2????????,??????
• UNII-2?5.255.35GHz,?????????,???????????????
• UNII-3?2.7252.825GHz,?5.8GHz?ISM??????80??
• ??UNII-2??
• ???????????

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(No Transcript)
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Hiperlan??

• ETSI???HiperLAN?????
• HiperLAN1?HiperLAN2???????????HiperLink?????
  ?????HiperAccess????????????????????????
• HiperLNA1???????????,???GMSK?????,?GSM???????
• ?HiperLAN2?????????OFDM(Orthogonal Frequency
  Division Multiplexing)???,???????????,????????????
  ??

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????

• HiperLAN2??????,??????????????HiperLAN2???????????
  
• ??????????,?????????????54Mbps,???????????????????
  ???20Mbps??,????????????QoS?????,????????????,????
  ??????
• ???????????????????(???????IP?ATM?PPP)??,?????????
  ??????????????
• ?????????????,????????????????,???HiperLAN2??????,
  ???????????????

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Hiperlan I

• ??1996?
• GMSK????(gaussian modular shift key)
• ????????
• ?????data link --- ??????MAC
• ---
  ??????CAC
• ???physical --- (????????)

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??????CAC

• ????????collision ????
• 1????CD ? 2????CA
• Elimination Yield Non-Preemptive priority
  Multiple Access
• ??/?????????????
• CSMA ????,?????????????,?????????,??????,???????
  ???????,?????????(??????.??????)

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CSMA VS EY-NPMA

• EY-NPMA ???????(??04),?????????????,?????????
• ???????(prioritization phase)
• ????(contention phase)
• ???? (transmission phase)
• (?????????,?????????????(random))

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????

• ???????(Elimination Phase),?????????Hiperlan??????
  ????????,???012?slot time?
• ?????,?????????????,?????????????????,??????????
• ESVP Elimination Survival Verification Period
• ????????

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CSMA EY-NPMA ??

• ? CSMA???????????
• EY-NPMA????????
• ????????real time??
• ? starvation????
• (EY-NPMA????????????)
• ????gt?????????,
• ??????

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??????MAC

• ???? ???Ad-Hoc
• ????????RIB(routing information base)
• ????
• ? Hiperlan Identifier
• ? character-based hiperlan name
• ?????? ??????

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Hiperlan II

• ?? OFDM??????
• ?????? DECT(digital enhanced cordless
  telecommunication)
• ???? wireless ATM
• ??????
• ???? ??????,????,IP,ATM,PPP??,??????????????????
  
• ??????GPRS UMTS??????

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• TDMA ????????
• TDD ??????
• ????????
• ?????data link --- ???Convergence
• ---
  ?????DLC
• ???physical --- (????????)
• ?????2??????? (packet-based)
  (cell-based)
• ???????????,???????? ????ATM??,??ATM??????

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TDMA

• Time Division Multiple Access
• ???????????? (TDM) ??? (DIGITAL) ??????, ????
  (RADIO) ???????????? (TIME SLOT), ???????????
• ??GSM?? ?? TDMA ?????

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• ????,????????,???????,??????,?????????????????,???
  ???????????
• 1 TDMA??????,??????????? ????
  2 TDMA????????????,???? ??????,????????????? ??
  ??????3 ??????????????????,??? ???????????????

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OFDM

• Orthogonal Frequency Division Multiplexing
• ????????
• ?????????????,??????????????????????,???????
• ????????????????????,???????????????,?????????????
  ??????
• OFDM???????????????????,??????,????????????????,??
  ???????????

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• OFDM??????5GHz????????????????????????????????,???
  ????????????????????,?????????
• OFDM????????DSL??????,??????????????,???IEEE
  802.11a ?????????OFDM??????4G????

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FDM?OFDM???????
FDM?????????,??????????????,ODFM? ??????????,?????
??????,??????? ????????Orthogonality.
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OFDM??????

• OFDM?????????????????????,??????????
• ??(orthogonal) ????????????????,?????????,????????
  
• ????(Frequency Offset)
• ????(Phase Noise)
• RF?PA (Power Amplifier) ?????

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ATM

• Asynchronous Transfer Mode???????
• ATM????????,????(???????????)??????????????(cell),
  ?????????????
• ???????,??????????????????????????????????,??ATM??
  ???????,???????????????????????

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???

• ??IEEE802.11a ??5GHZ ??54mbps
• ??????????OFDM???,???????????(Inter Symbol
  Interference)????????????????????,????????????????
  ??????,?????????????,???????????????????,?????????
  ????????,???????,??????????????????,??????????,???
  ???????

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???????DLC

• ??????
• MAC??????,EC????,RLC??????,ACF??????,RRC????????,D
  CC????????
• MAC ????,????,uplink/downlink
• EC ???gtARQ???????????????,???????????????
• (???
• ????,????????????????)

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• RLC ???????????????????????
• (??? ????????????,??????????)
• ACF ??,????,??,????
• RRC ??????,????,????
• ??uplink???????????,???
• DCC ?????????

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???Convergence

• ???? ???????????????????????
• ????????gt??????????,??????,??????????????????
• ??????(transparency)
• ???

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?????

• ????????
• ????????
• ??????
• ??????
• ??????

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????????

• ???????
• 19??? ?????20mhz ,?????52???,??48????,4???????
• ???????????????,????????????????????,?????????????
  ??(SNR)????????

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????????

• ?????????????,?????,??????,???????
• ???????????
• ???????? ?????????????,??????????

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??????

• ??AP?????
• ??,??,?????????
• ??????????,????request?AP,?AP??????????????,??????
  ?
• Request???????,????????,?????????

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??????

• ???????
• ?????????
• ??1050?? ??150??
• AP????????????,??????????????
• ????

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??

• ??????
• ????????handover???????
• ??????
• ??C/I(channel to interface) ????
• (??? ???????)
• ????
• ???????????,????????????????,????????

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• ????

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????

• ???????????,HiperLAN????????????(Forward Error
  Correction)???
• ???????????????,??????????20MHz,????????????????,?
  ????????????????,???????????????????
• ??????,HiperLAN2???????????????????????(FEC)????

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• ?????????????,??????FEC,??HiperLAN2???????FEC,????
  ???????????,???????????
• HiperLAN2???????????,????FEC????????,?????????????
  ??????,???????????,?????????????????????

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• ?????????,HiperLAN2??????(Connection
  Oriented)?????,????????????????,???????????????,??
  ????????????????????,?????????????????,??????????(
  QoS)???
• ??????????????????(Connectionless
  Oriented)????????,????????????????,???????????

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• QoS?????,????????????????
• ???????????????????,?????????????????????????????,
  ?????????????????????????,??????????,??QoS????,???
  ?????????????

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• ????????????,HiperLAN2??????????????????????,AP???
  ???????????????AP??????HiperLAN2???????,??????????
  ???????,???????????????????,??????????????
• ??????????AP??????AP??????,?????????????????????,?
  ?????????AP,??AP???AP???????????????????

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• ???????,HiperLAN2??????????,??????????Diffe
  Hellman??????????????,??????????????????????AP????
  ???
• ????????????????????????,???????????900MHz?2.4GHz?
  ????,?????????????????HiperLAN2?54Mbps?5.GHz??,???
  ???????????????

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• ????

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Hiperlan????
49

• HiperLan/1
• ??5 G
• ??23.5 Mbps
• ??50 M
• ?????????
• ????
• GMSK 23.5 Mbps

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• HiperLan/2
• ??5 G
• ??54 Mbps
• ??50 M
• ?????????
• ????OFDM
• ??
• ???
• ????
• QoS
• ??????
• ????
• ??????

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• HiperLink
• ??17 G
• ??155 Mbps
• ??150 M
• ???????
• ??????????????

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• HiperAccess
• ??5 G
• ??25 Mbps
• ??5 KM
• ????
• ????????????????????

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??????
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HiperLAN/2 ????
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(No Transcript)
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? IEEE 802.11 ??
57

• HiperLAN/2 ?802.11a ????????,????5GHz???OFDM
  ???????54Mbps,????????????????,HiperLAN2????????Qo
  S,??????????????VoIP ??????????

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• ?????5GHz UNII????????HiperLAN/2???ETSI?????BRAN
  (Broadband Radio Access Networks)??????????HiperLA
  N??QoS???,????????HiperLAN/2???????????????802.11a
  ????
• ?? IEEE?802.11??????Wi-Fi??????,????HiperLAN
• ??????Bluetooth?????????

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(No Transcript)
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(No Transcript)
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QOS issue

• 802.1p ?????????????,???QoS???IEEE
  802??????,?Ethernet?FDDI?Token Ring???????????????
  ???????,???????????????????,?802.1p???????????
• Resource Reservation Protocol?QoS????????????????,
  ???????????????QoS???,?RSVP????????????QoS???,????
  ?????????,???????????QoS??????????????????????????
  ?QoS?????????????????
• RFC2205

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• RSVP???????????,???????Internet???,????????????,??
  RSVP????????????????,????????????????????????
• QoS???????????,????RSVP?A???B?????QoS?,??????A?B?Q
  oS??????,???B???A?????,??RSVP??????????QoS???????
• RSVP???IPv4??IPv6,?????
• RSVP???????????????,??????????,???????????????????
  

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802.11j ?? ??

• 802.11j????802.11???1997????????????2002?8?,??????
  ???,???(??)?????(??)???????WLAN????4.9?5GHz???
• ????????????,??IEEE 802.11??????????,??????,??????
  ????
• ????? 802.11a ? HiperLan2 ?????,????????????,??
  ETSI ? IEEE ??????

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?????1

• ??????????ITU?????????5GHz????????????,???????????
  ?SKU??(Stock Keeping Unit)???????????????????????
• ????????5GHz UNII Band,????5GHz ISM
  Band??,?????,?????????,?????????FCC?5GHz??????????
  ,?????????????
• ???????2.4GHz ISM???

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?????2

• ??????????????????
• ??Wireless ATM???,????????54Mbps,??????????????GPR
  S?UMTS?????????????,????????????????????
• ?????HiperLAN????????H2GF(HiperLAN2 Global
  Forum)??????,?47???????????????????????????

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• ????