Downlink pyhysical channel dan downlink physical signal di tunjukan sebagai berikut :
Downlink physical channel membawa informasi dari layer 2 tetapi Downlink physical signal hanya membawa informasi dari layer 1 (physical layer)
Downlink physical channels :
Downlink physical channels :
- Physical Downlink Shared Channel (PDSCH)
- carrier dari DL-SCH dan PCH, DL-SCH memuat data actual user data
- Physical Downlink Control Channel (PDCCH)
- menginformasikan UE tentang alokasi resource dari PCH and DL-SCH, dan HARQ informasi yg berhubungan dengan DL-SCH
- carrier dari uplink scheduling grant
- Physical HARQ Indicator Channel (PHICH)
- carrier ACK/NACKs dalam response ke transmission uplink
- Physical Control Format Indicator Channel (PCFICH)
- menginformasikan UE tentang number dari OFDM symbol yang digunakan untuk PDCCH yg di trasmisikan pada tiap subframe
- Physical Broadcast Channel (PBCH)
- blok dari code BCH transport di mappingkan ke empat subframe dengan masing2 interfal 40 ms
Downlink physical signals:
- - Reference signal
- - Synchronization signal (P-SS and S-SS)
Figure Downlink Physical Channel Structure
Uplink physical channel dan Uplink physical signal di gambarkan sebagai berikut:
Uplink physical channel membawa informasi layer 2 (data link) tetapi Uplink physical channel hanya di gunakan pada layer 1 (physical layer)
Uplink physical channels and uplink physical signals are as follows. Uplink physical channels carries layer 2 information but uplink physical signals are only used by the physical layer.
Uplink physical channel:
Uplink physical channel membawa informasi layer 2 (data link) tetapi Uplink physical channel hanya di gunakan pada layer 1 (physical layer)
Uplink physical channels and uplink physical signals are as follows. Uplink physical channels carries layer 2 information but uplink physical signals are only used by the physical layer.
Uplink physical channel:
- Physical uplink shared channel (PUSCH)
- carrier dari UL-SCH, ACK/NACK dan CQI . UL-SCH memuat data actual data user
- Physical Uplink control channel (PUCCH)
- carrier ACK/NACKs dalam respon ke Downlink Transmission, laporan Carrier CQI (Channel Quality dan Indicator) SR (Scheduling Request)
- Physical random acces channel (PRACH)
- carrier random access preamble
Uplink physical signals:
- - Demodulation reference signal (UL-RS), associated with transmission of PUSCH and PUCCH.
- - Sounding reference signal (SRS), not associated with transmission of PUSCH and PUCCH.
Figure Uplink Physical Channel Structure
