?? ?????????? ???????? ?????
???? ??? ??????? ??????
?????? ???? ?????? ???? ????????
(
???????????
:
High Speed Packet Access ???????? HSPA
)? ?? ???? ??? ?????????? ???????? ?? ??????? ???????? ???????? (HSDPA)? ?????? ?? (High Speed Downlink Packet Access)) ??? ?????? ???? ?????? ????? ????????? ????????? (HSUPA) ?????? ?? (High Speed Uplink Packet Access) ??? ?????? ???? ?????? ????? ???????? ???? ????? ??????? ????? ???? ????????? ??? WCDMA ???????.???? ???? ?????? ?????
???? ???? ????? ???????? HSPA+
? ????? ?? ?????? ?? ????? ??? 2008 ???????? ?? ???? ????? ?????? ?? ??? 2010.
???? ????
[
???
]
???? ???? ????? ?????? ???????? ????????? ???? ??? 14 ?????? ??????? ??????? ? 5.8 ?????? ??????? ?? ???????. ??? ????? ?? ?? ??????? ?? ????? (Time Delay) ????? ?? ??? ??? ??? ???? ???? ????? ?????? ??? ????????? ?? ????????? ?????? ???? ?? ???????? ????? ????? ??????? ?? ???? ?????? ?????? ?? ?????????? WCDMA ??????? ? ?????? ?? ????? ????? ?????? ? ???? ?????
???? ?????? ??? ??????? ???????? ???????? (????) - FOMA
??
???????
? ????? ???HSPA ?????? ???????? ?????? ?????? ???? ???? ????:
- ???????? ?? ???? ???????? ??? ???? ??? ????????? ????? ?????? ??????? ?????? ?????? ?? ??? WCDMA.
- ????? ??? ??????? ??????
(TTI (Transmission Time Interval
? ??? ???? ??? ????? ????? ?????? ??????? ????? ?? ?????? ????????? ??????? ??????.
- ?????? ??? ??? MODULATION ?? ???? ?? ???? ????
Link Adaptation
? ??? ???? ?? ??????? ????????? ????? ?????? ???????? Base Station ?????? ?? ?????? ???? ???? ?? ??????? Cells .
- ????? ?????? ????? ???? ???????? ?????????? ????? ????? ???? ???? ???? ???????.
- ????? ????? ????? ?????? ????? ????????? ????? ???? ?? ??? ??????.
- ??????? 16QAM ? 64QAM? ??? ??? ?? ????? ???? ????? ??????????? (Quadrature amplitude modulation) ??? ??? ?? ????? ???? (Amplitude modulation) ??????? ??????? ????????. ????? ???? ???????? ?? ?????? ???? ?????? ????? ?????? ?????? ?? ????? ?? ?????? ?? 90 ???? ????? ???? ????? (90 ???? ?? ??? 360 ????(? ??? ???? ?? ?????? ????.
- MIMO ? Multiple Input? Multiple Output
????? ???????? ?????? ???????? ??? ???? ?????? ??????? ?????? ??????? ??????? ??????? ?????? ?? ????????? ??????? ?????? ???? ????????? ????? ?????? ??? 3G, ??? ??? ?????? ????? ?????? ??????? ?????? ????? ?? ?????.
?? ????? 2010? ?? ??????? ??????? ?? ???? ?? 200 ???? ?????? ????????? ?? ???? ?? 80 ???? ????? ????? ?????? ?? HSPA ?????? ????? ????????? ??? ????? ????? ?????? 3G ???????. ???? HSPA ????? ?????? ????? ????? ????? ???? ????? ???? ????? ????? ??????. ???? ?????? ?????? ???? ?? ??????? ??????? ??? HSPA ?????? ??? ??? ????? ????? ?????? ????? ???? / ????? 2010? ?? ????? ????????? ??? ????? ??? ?????? ???????? ?? ??? ????? ??? HSPA ?????? ??? ???? ???? HSPA ???????.
???????? ?????? ???? ?????? ????? ????????? (HSDPA ? High Speed Downlink Packet Access Protocol)
[
???
]
?????? ?????? ???????? ?????? ??? WCDMA ??? ??? HSPA ?? ????? ?????? ????? ?????????? ?? ???? ????? ??????? ??? HSDPA. ???? ???? ?????? ??????? ???????? ???? ??? 14 ?????? ??????? ????? ???? ????? ?????? ??????? ?? ?????
(Time Delay)
?? ?? ???? ????
(latency)
? ??? ???? ?? ??????? ???? ?????? ????? ????? ?? ??? ???? ???? ???????? ??? ????????.
? ????? ???(HSDPA) ?? ???? ??? ???????? ????? ??????? ??????? ???????? ?? ?????? ?????? ????? ???? ???????? ??????? ???? ??????? (Higher order modulation) ??? ??? ?? ??????? ?????? ??????? ???? ?????? ??????? ?? ????? ???? ???? (QPSK ? Quadrature phase shift keying)? ??? ?????? ????? ??? ??? ??????? ??????? ???? ?????? ??? ??? MODULATION ?? ?? ???? ???? (Fast Link Adaptation)? ????? ??????? ???????? ???
Fast hybrid Automatic Repeat ReQuest
????? ?? ??
(HARQ)
??? ???? ??? forward error-correcting coding ? error detection ???????? ??? ARQ .
??????? ??? HSDPA ?????? ?? ???? ????? ?? ????? ??????? ?? ???? ????? ??? WCDMA ???????? ??? ??? ???? 2008 ?? ????? 90% ?? ????? ??? WCDMA ??? HSDPA.
????? ?? ??? ???? ???? ????? ???? ??? 7.2 ?????? ??????? ?? ?????????? ? 14 ?????? ????? ????? ??????? ??????? ???? ???????????.
???????? ?????? ???? ?????? ????? ??????? (HSUPA ? High Speed Uplink Packet Access Protocol)
[
???
]
?????? ??????? ?????? ??? WCDMA ?? ??? ????? ???????? ??? ???? ????? ??
?????? 6 ??? 3GPP
?????? ?? The 3rd Generation Partnership Project. ???????? ??? HSUPA ?? ??????? ????? ????? ?? ???. ???? ??????? ????? ???? ??? ????? ??? WCDMA? ???? ??????? ??????? ??????? the Enhanced Dedicated Channel ????? ??? ?? (E-DCH)? ????? ??????? ???? ??? ???? ?? ????????? ??????? ????? VoIP? ????? ????? ?????? ??? ???? ?? ??????? ?? ???? ?????? ??????????. ????? ???? ???????? ??????? ???? ??? 5.8 ?????? ???????. ????? ????? ?????? ????? ?? Latency. ????? ??????? ?? ????? ?????? ???? ??????? ???? ????? ????? ????????? ???? ??? ??????.
???? ??????
[
???
]
??????? ????? ??
HSPA Evolution? +HSPA? I-HSPA ,Internet HSPA
? ?? ????? ?????? ???? ?????? ???? ??????? ??? 7 ? 8 ?? 3GPP ???????? ?? ??? ????????? ??? WCDMA. HSPA ?????? ???? ?????? ?????? ???????? ??? ??? 84 ?????? ??????? ?? ?????????? ? 22 ?????? ??????? ?? ???? ??????? ????? ????? ??? ??? 5 ?????????. ???????? ????????? ????????? ?????? ??????? ????????? ?? ???????? ??????? ???? ?????? ?? ?????? ???????? ?? ????? 2010 ???? ???? T-Mobile ????????? ????? ???? 50 ???? ??? ?????? ???? ?????? ?? ???? ??? ???????? ??? 100 ???? ????? 185 ????? ???? ?? ????? ?????.
???? ????? ???????? (Dual-Cell HSDPA)
[
???
]
? ?? ??? ?? ?????? 8 ?? 3GPP? ??????? ??????? ?????? ?? ???? ????? ??????. ???? ??????? ?????? ?????? ??? ??? 28 ?????? ??????? ? 42 ?????? ??????? ?? ???? ????? ????? ??????? 5 ????????? ?? ?????? 7 ???????? ???? ?????? ?? ?????? 8. ?? ?????? ?????? ?????? ?? ?????? ??????? ??? ????????? ???????. ?????? ?? ??? ???? ??????? ?????? ????????
DC-HSPA
??? ????? MAC Address ???? ????? ?????? ?? ??????? ??????? ?? ??? HSPA ???????? ???? ????? ???? ?????? ??????? ?? 5 ????????? ??? 10 ?????????. ???? ???? ??? ???? ???? ???Gain ????? ?? ????? ?????? ??????? ??? ?????? ????? ????? ????? ??? ??????? ?? ?????? ?? ??? ??????? ????Gain? ???? ?? ??? ????? ???? ??????
(QoS ? Quality of Service)
?????????? ?? ???? ???? ??????? ???????? ???? ?? ?????? ????????? ?? ????????? ?????? ??????? ???????? MIMO ???????? ???? ??????.
?????? ?? ?????? 9 ??? ???? ?? ?????? ??????? DC-HSDPA ??????? ?? ???MIMO. ???????? ?? MIMO ?? ??? DC-HSDPA ????? ??????? ?????? ?????????? ?? ?????? ??? ????? ?????? ???? ?? ?????? 8.
???? ????? ???????? (Dual-Cell HSUPA)
[
???
]
??????? ?????? ??? ????? ?? DC-HSDPA ?? ?????????? ???? ??? ?? DC-HSUPA? ??????? ?????? ???? ???? ??????? ?????? ??????? ?????? ?????? ??? ???
???? ?????????
(Node-B)
?? ????? ?????? ?? ?? ?? ?? ?? ????? ?????)???? ??????? ??????????(? ??? ?????? ??
?? ?? ??
GSM
??? ?? ?? ??
??
???? ????????? ???????? ???????
??? ???? ?? ????? ?????? ??????? ????????? ????????? ????? ???? ?????? ???? ??? ????????? ????? ??????. ?????? ??? ??? ????? ?? ??? ????? ?? ?? ??? ?? ?????? ??????? ?? ??????? ?????????? ????? ??????? ???????? ?? ?????.
???? ????? ??????? ??????? (Multi carrier HSPA ? MC-HSPA)
[
???
]
?? ??? ??? ????? ????? ???? ?? ?????? ??????? ?? ????????? ??????? 3GPP ?? ???? ??? ???? ???? ??????? ??? ??? ???? ?? ?????? ?? ??? ????? ??? ??? ?????? ?? ??? ???? ???? ???????????.
?????
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???
]
