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PHS

 

     

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WCDMA

MAT

CDMA

GSM

 

     

PHS (Personal Handy-phone System)

  • PHS ???????
????????????????????? PHS ???????????????????????????? ?????????????????????????????????????????? PCT (Personal Communication Telephone) ???????????????????????? ????????????????? PHS ??????????????????????????????????????????????????????, ???? PCT ????????????????????????? ?????????????????? ?????????????????????????????? ???????????????????????????????????? PHS ??????
  • PHS ?????????? 3 Layer ?????
 

??? ???????????????? PHS ?????????? 3 Layer

1. Intelligent Layer ?????????????
1.1. Home Location Register (HLR) ??? computer ???????????????? Location Information ?????????? PCT server ????????????? PCT ?????????????????????
1.2. Call Detail Recording System (CDR) ????????????? ????????????????????????????????? PCT ??????????????????? File ???????????????? Billing Center (BC) ???????????
1.3. Network Management System (NMS) ?????????????????????????,???????, ?????, ?????????????????? Cell Station (CS)
1.4. Billing Center (BC),Subscriber Data Management (SDM) BC ???????????????????????? CDR ?????????? ???????? ???? SDM ??????????????????????????????????? ?????????????????? ??????????????? ????????????????????? Intelligent Layer ??????????????????????? LAN ???
  • Intelligent Layer ????????????????????? Transport Layer ???? Potocol???? ?????
- HLR ???????????? PCT Server ???? Common channel signalling No.7 (CCS7)
- CDR ???????????? PCT Server ???? Potocol X.25 ????????????????????????????????????????? CDR
-NMS ???????????? PCT Server ???? Basic Rate Interface (BRI) ?????????? information ???Cell station ???? PCT Server
  • 2. Transport Layer ?????????????
2.1. PCT Server ??????????????????????? (Switching System) ?????????????????????????????????????? NEC Series NEAX61 ???????????????????????????????????????????????
????????? PCT Server
1. Paging
- call termination request to multiple interface
- Interface group list managment
2.Authentication
- ????, ??, ????????????? ??????????????????????? authentication random pattern ???????????? Cell station
3. Handover
- ??? Handover request ???????????? request ??? Cell station
- ???? Traffic channel ??? Cell station ??????????? Cell station ????
4. ?? PB Tone
- ??????????????? PB ???? ?????? DTMF ????????????? B ??????? Cell station
5. Traffic Observation ???????? Traffic ?????
- Call Attempts ???????????? ???????? ????????
- Call Completion ?????????? Originating outgoing calls signaling complete, incoming termination calls answered,and other
- Traffic Distribution
2.2. Remote Digital Line Unit (RDLU)
???????????????????????????? (Fixed Line) ?????????????????????????? Centralized ??????????? Group
Switching Pracessor (GSP) ??????????????????????????????????????????????? Centralized Switching Node (CSN) ???????????????????????????????????? ??????????????????????? ???? Remote Switching ?????????????????????????????????? ?????????????? GSP ????????? ??? Remote Switching ????????????????? Mobile ????????????????????????????????????????????????? ???????????????? Remote switching ????????????????????????????????????? (Outside PlantNetwork, Local Access Network) ?????????????????????? MDF, cable ?????, ?????????????????, cable ??????, ???????????????, ?????????, ????????? ??? ???????????????????? ?????????????? PCT ????????????????? ?????????????????????????? 2 ??????? PCT Server ???????????????????????? CSN ?????????????????????????????????????????????????????????? ??????????????????????????????????????????????? Remote Digital Line Unit (RDLU) ???????????????? RDLU ????????????????????? Cell Station ????????? ???????????????????
  • ???????????? PCT Server ??? RDLU
    ????????????????????????????? ???????? E1(2.048Mbps) ?????? Transmission Media ????????????????????? Copper Line Multiplexer, Microwave, Optical Fiber
  • ????????? RDLU
    ??????????????????????? ????????? PCT ????????????????? Air Interface ???????????? PCT ??? Cell station ?????? 1 ????????? ???????????????????? B (B channel) ?????????????????? Cell station ??? RDLU ??????????? 1 ??? (64Kbps) ???????? Cell station 1 ??? ?????????????????????? PCT ??? 4 ??????????????? Control Channel ???? 1 ????????? ????????????????????????????PCT ?????????????? 3 ????????????? 3 ?????? ????????????? Cell station ???????? RDLU ??????????????????????? ISDN ??? Basic Rate Interface (BRI) ??? 1 ?????????? 2 ????????? B ??? 1 ??? Signalling ??????????? 2B + D ?????? Cell station 1 ???? ?????? 2 ????????? BRI ?????????
- ???????????????? (Traffic channel) ???????????? PCT ? Cell station ?? 3 channel ?????????????????? (Control channel)??? 1 channel ??????? 4 channel
- ????????? B ?????? Cell station ? RDLU ?????? 4B channel ???????????? D ??? 2D channel ??? 1 Cell station ?????????????????????? B ?????????????????????? RDLU ??????????????? PCT Server ???????????????????????????????????????????????? ?????????
  • ?????? RDLU
    ??????? RDLU ????????????????????????????? ??????????????????????? ??????????? RDLU ??????????????????
    Cell station ???????????????? ????????????????????????????????????????????? ????????????? capacity ?? RDLU ????????? capacity ??????
??????????????? PCT server ?????? RDLU ???? 6 ???????
- ???? A1 ??????????? Cell station ??? 14 ????
- ???? A2 ??????????? Cell station ??? 28 ????
- ???? B1 ??????????? Cell station ??? 56 ????
- ???? B2 ??????????? Cell station ??? 84 ????
- ???? C1 ??????????? Cell station ??? 112 ????
- ???? D ??????????? Cell station ??? 224 ????
3. Access Layer ??????????
3.1. Cell station (CS) ??????????????????????????????? ????????? PCT ???????????? (air interface) ?????????????????????????????? PCT ???????????????????? RCR STD-28 (Research & development Center for Radio systems Standard-28) ????????????????? ARIB (Association of Radio Industries and Businesses) ????????????????????????????????????? Radio ??????????????? ????????????????????????????????? PHS
Cell station ?????????? ????????????????????????? PCT ???????????????? 1900MHz ????????? (air interface) ??? Cell station ???????????????????????????????ISDN line ??? Basic rate Interface
????????? Cell station (CS)
1. Broardcasting Information
CS ?????????????????????????????????? PCT ????????????????????????????????????????? CS ???? ??????????????????? PCT ?????????????????????? (control signal) ?????????????????????????
2. Radio Channel Setup
CS ???????????????? (channel) ???????? CS ???????????? PCT ????????????????? ???? ?????????
3. Authentication
PCT Server ????????? ??????? Authentication Pattern ????????? CS ?????????? PCT ????????????????? Algorithms ???????????????? PCT ???????????? ????????????????????? PCT ???????? ?????????????????????????????????????????????????????????????
4. Interferance Guidance
CS ??????????????????????????????????????????????? RCR STD-28
5. Encrytion
????????????????? CS ????????? PCT ??????????????? ???????????? CS ????????????????????? ?????
????????????????????????? ??????????????????? RCR STD-28
6.Location Registration
CS ?????????????????? ??????????????? ?????? PCT ?? update ????????Location Information ??? HLR
??????????? PCT ???????????????????????????????? CS ??????????? ????????? Request ?? update
Location
7. Speed Coding Conversion
CS ???????????????????????? 32 Kbps/s ADPCM ??? 64Kbps/s PCM ????????????????????
???? Bit rate ?????????
8. D-Channel Sharing
????????????????????????????? ???????? cell ????? ???????????? CS ????????????????????????????????
??????????????? CS ?????????? Master ???????????????? 3 ??? ???? traffic channel ????????????????? control channel ???? CS ?????????????????????? Slaeve ?????????? 4 ??????? traffic channel ???
????????????? Slaeve???????????????? D-channel ???????
9. Hand Over
?????????????????? PCT ????????????? ????????? PCT ????????????????????????????????????? CS
??????????? CS ??????????????? ?????????? CS ???????????? ????? CS ???????? ????????????????
??????? request ????? PCT Server ?????????? traffic channel ?? CS ????????????????????????????????????????????????????????
10. PB signal Tranfer
CS ?????????????? DTMF ????????? PCT ???? PCT Server ????????????????
11. Maintenance Function
CS ??????????????????????????????? ???? Fault supervision, Equipment control, software downloading, ????????? traffic
3.2. Personal Communication Telephone (PCT)
PCT ?????????????????????????????????????????????????????? ????????????????????????????? CS ?????????? (air interface) ?????????????????????????????? RCR STD-28 ?????

Transmission method parameters

Radio access method

TDMA-TDD

Number of TDMA multiplexed circuit

4(when full rate CODEC is used)

Frequency band

1,895-1,918.1MHz

Carrier frequency spacing

300kHz

Modulation method

TT/4 shift QPSK (roll-off rate = 0.5)

Transmission rate

384kbit/s

Antenna power

Less than or equal 10mW

???? ???????????????????? PCT

  • ?????????????? PCT ??????????????????????????????????????? PCT ???????????????????????????? RCR STD-28 ??? ?????????????????????????????????????????????????????? PHS ???
  • ???????????????? ????????????????????????????????? PHS ???????????????????????????????????
  • ???????????????????????????????? ???????????????????????????????????????????? ???????????? PCT ??????????????
    ????????????????????????????????????? ???????? ????????? ??????????????????? PCT ????????????????????? ???????????????????????????????????? PHS ??????????????? ????????????????????? ?????????????? PCT ??????????? PS ID ??????????? PCT ?????????????????? Digital ????????????? ARIB (Association of Radio Industries and Businesses) ????????????????????????????????????? Radio ??????????????? ?????????????????????????????????? PHS ??????????? ???????????????????? PS ID ??????????? PCT ?????????????????????? PHS ??????????? ?????????????? PS ID ??????????????????????

 

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