E-UTRA, 10 , , ( 8 ) . , (. 6.11). 8 . UE 4 20 (.. 80 ), MIMO 4×4 75 /, 1200 /, , 4 : 1 / . Rel.13 , 4 20 [6]. , 5 , .
46, Rel.13.1. , Wi-Fi IEEE 802.11a, n, ac. LAA (Licensed Assisted Access), 20 , , Wi-Fi. . : LTE Wi-Fi. Rel.13 LTE LBT (Listen Before Talk) Wi-Fi.
. 6.11.
Rel.12, - 256- ( 6.6).
6.6
CQI | R x 1024 | ||
4- | 0,1523 | ||
4- | 0,3770 | ||
4- | 0,8770 | ||
16- | 1,4766 | ||
16- | 1,9141 | ||
16- | 2,4063 | ||
64- | 2,7305 | ||
64- | 3,3223 | ||
64- | 3,9023 | ||
64- | 4,5234 | ||
64- | 5,1152 | ||
256- | 5,5547 | ||
256- | 6,2266 | ||
256- | 6,9141 | ||
256- | 7,4063 |
, Rel.13, . 6.7 6.9.
6.7
UE | L2 | ||||||
. DL-SCH c1 | . DL-SCH c2 | . , . HARQ | . MIMO | . UL-SCH c | 64- | ||
1 400 | |||||||
1 900 | |||||||
3 500 | |||||||
149776 (4 ) 75376 (2 ) | 2 4 | 3 300 | |||||
149776 (4 ) 75376 (2 ) | 2 4 | 3 800 | |||||
42 200 | |||||||
149776 (4 ) 75376 (2 ) | 2 4 | 4 800 | |||||
149776 (4 ) 75376 (2 ) | 2 4 | 5 200 | |||||
149776 (4 64-) 195816(4 256-) 75376 (2 -64-) 97896 (2 256-) | 2 4 | 6 200 | |||||
149776 (4 64-) 195816(4 256-) 75376 (2 -64-) 97896 (2 256-) | 2 4 | 6 700 |
|
|
Rel.12, 6.7, LTE , UE . . 6.8 UE , . 6.9 . 0 1UE 2 .
6.8
UE (DL) | . DL-SCH c1 | . DL-SCH c2 | . , . HARQ | . MIMO |
DL 1* | ||||
DL 0 | ||||
DL 6 | 149776 (4 ) 75376 (2 ) | 2 4 | ||
DL 7 | 149776 (4 ) 75376 (2 ) | 2 4 | ||
DL 9 | 149776 (4 ) 75376 (2 ) | 2 4 | ||
DL 10 | 149776 (4 ) 75376 (2 ) | 2 4 | ||
DL 11 | 149776 (4 , 64-) 195816 (4 , 256-) 75376 (2 , 64-) 97896 (2 , 256-) | 2 4 | ||
DL 12 | 149776 (4 , 64-) 195816 (4 , 256-) 75376 (2 , 64-) 97896 (2 , 256-) | 2 4 | ||
DL 13 | 195816 (4 ) 97896 (2 ) | 2 4 | ||
DL 14 | ||||
DL 15 | 749856-798800 | 149776 (4 , 64-) 195816 (4 , 256-) 75376 (2 , 64-) 97896 (2 , 256-) | 2 4 | |
DL 16 | 978960 -1051360 | 149776 (4 , 64-) 195816 (4 , 256-) 75376 (2 , 64-) 97896 (2 , 256-) | 2 4 | |
DL 17 | 391656 (8 , 256-) | |||
DL 18 | 1174752-1206016 | 299856 (8 , 64-) 391656 (8 , 256-)] 149776 (4 , 64-) 195816 (4 , 256-) 75376 (2 , 64-) 97896 (2 , 256-) | 2 4 [ 8] | |
DL 19 | 1566336 -1658272 | 299856 (8 , 64-) 391656 (8 , 256-)] 149776 (4 , 64-) 195816 (4 , 256-) 75376 (2 , 64-) 97896 (2 , 256-) | 2 4 [ 8] | |
* 1 2 1,4 |
|
|
6.9
UE (UL) | . UL-SCH c | . UL-SCH c2 | 64- |
UL 1 | |||
UL 0 | |||
UL 3 | |||
UL 5 | |||
UL 7 | |||
UL 8 | |||
UL 13 | |||
UL 14 |
Rel.13 LWA (LTE - WLAN Aggregation), LTE Wi-Fi. LTE Wi-Fi 5 .
4 . , , , , , .. , ( ) .
(femtocell) ‒ , ( 20 ). Home eNodeB (HeNB).
E-UTRAN . 6.12.
.6.12. E-UTRAN
, . , UE HeNB , / . - , 4G. .
HeNB. , , , CSG (Closed Subscriber Group). , HeNB. CSG CSG ID. , (Hybrid Access). , , (.. CSG), .
, , HeNB Gateway (GW), . 6.12.
, 2016. LTE (eMBMS - Evolved Mutimedia Broadcast Multicast Service). ó . : (unicast), (broadcast) (multicast). LTE. , , . ( ) , . , , , , .
eMBMS . , , , . , .
|
|
LTE MBMS . 6.13.
. 6.13. LTE eMBMS
, MBMS.
MBMS: BM-SC (Broadcast/Multicast Service Center). MBMS-, () , , , , MBMS. MBMS BM-SC QoS. BM-SC MBMS , .
MBMS- (MBMS-GW) , . SGi-mb MBMS-GW IP-multicast eNB 1. MBMS-GW , BM-SC, S-GW PDN-GW.
MCE (Multi-cell/multicast Coordination Entity) eNB. MCE :
eNB, MBMS;
- (MCS);
ARP (Allocation and Retention Priority). ARP MCE MBMS MBMS ;
MBMS;
MBMS ARP.
eMBMS (HARQ). QoS . - MBMS , . , , . MBMS , .
. eMBMS QoE (Quality of Experience), HTTP-.
eMBMS , , . .
[1] GSM Global System for Mobile Communications, UMTS Universal Mobile Telecommunications System
[2] UTRA-FDD (Universal Terrestrial Radio Access Frequency Division Duplex)
|
|
[3]
[4]
[5] MIMO 15.
[6] Rel.13 100 .