Channel Mapping for GPRS
Refer to 44.060 - 1.3, 1.4 for details
|
Direction |
Logical Channel |
PHY Channel |
Function |
|
|
Signaling |
DL |
PBCH |
PBCCH |
Packet Broadcast Control Channel : Broadcast of packet data specific information |
|
DL |
PBCCH |
Compact PBCCH | ||
|
DL |
PCCCH |
PPCH |
Packet Paging Channel : Paging MSs for packet data and circuit switched services |
|
|
UL |
PRACH |
Packet Random Access Chanel : MS initiates uplink transfer/Request GPRS Resource |
||
|
DL |
PAGCH |
Packet Access Grant Channel : Resource assignment to an MS |
||
|
DL/UL |
PACCH | Packet Access Control Channel : Associated with TBF (Temporary Block Flow) | ||
|
UL |
PTCCH/U | Packet Timing Advance Control Channel /Uplink : Transmit Random Access Burst to allow estimation of the timing advance | ||
|
DL |
PTCCH/D | Packet Timing Advance Control Channel /Downlink : Transmit Timing Advance updates | ||
|
UL |
MPRACH | Used during the initial counting procedure for MBMS | ||
|
DL |
PNCH |
Notifying PtM Packet Transfer |
||
|
DL |
CPPCH |
Compact PPCH | ||
|
UL |
CPRACH |
Compact PRACH |
||
|
DL |
CPAGCH |
Compact PAGCH |
||
|
Traffic |
DL/UL |
PDTCH/D |
DBPSCH/SBPSCH |
Packet Data Transfer(multislot). GMSK, 8-PSK, 16 QAM, 32 QAM User Data |
|
PDTCH/U |
DBPSCH/SBPSCH |
Packet Data Transfer(multislot). GMSK, 8-PSK, 16 QAM, 32 QAM User Data |