Rel.9 5 . . 3.12. [19]
3.12
UE | L2 | ||||||
. DL-SCH c1 | . DL-SCH c2 | . , . HARQ | . MIMO | . UL-SCH c | 64- | ||
1 400 | |||||||
1 900 | |||||||
3 500 |
. 3.12 :
1) , UE DL-SCH . .
2) , DL-SCH .
LTE
LTE 3 (.4.1).
.4.1. LTE
L3 RRC (Radio Resource Control) . L2 3 :
- PDCP Packet Data Convergence Protocol, ;
- RLC Radio Link Control Protocol, ;
- MAC Medium Access Control Protocol, .
RRC , UE .
(Control Plane) LTE .4.2. , S1 (NAS Non Access Stratum), , 2.
.4.2. LTE
, L2 . PDCP : SDU (Service Data Units) . :
- (, , ) IP-, ROHC (Robust Header Compression), IETF UMTS,
- SDU ( UMTS RLC MAC),
- () ( UMTS RLC).
. 4.4.
.4.4. , PDCP
, PDCP .
|
|
RLC :
- SDU PDU (Protocol Data Unit) ,
- , (ARQ),
- , .
3 RLC :
- (transparent mode) RLC,
- (unacknowledged mode),
- (acknowledged mode).
. :
- , .. ,
- ,
- ,
- UE UE,
- : , , UE, UE ,
- / (DRX) .
RLC . (, , ), RLC PDU. MAC RLC PDU, RLC . PDU RLC .
(scheduler), know-how .
RRC :
- ,
- ,
- , RRC UE e-UTRAN,
- , ,
- ,
- ,
- UE,
- NAS UE ,
- UE ,
- .