3GPP为5G（NR)网络就载波聚合在38.101-1和38.101-2分别定义了FR1和FR2的标准；在38.101-3定义了FR1与FR2之间的载波聚合；FR1载波聚合分为频段内连续，非连续；频段间；2载波，3载波，4载波载波聚合；整理：kangguoying20200825
1.载波聚合等级整理：kangguoying20200825
在5G(NR)网络中载波聚合共分为12个等级，带宽最高达400M,最大支持8个载波的聚合；具体见下表：整理：kangguoying20200825
NR CA bandwidth class/聚合等级 | Aggregated channel bandwidth 聚合带宽 | Number of contiguous CC/聚合载波数 | Fallback group |
A | BWChannel_CA ≤ 1 x BWChannel,max | 1 | 0, 1, 2 |
B | 20 MHz < BWChannel_CA ≤ 50 MHz | 2 | 0 |
C | 100 MHz < BWChannel_CA ≤ 2 x BWChannel,max | 2 | 1 |
D | 200 MHz < BWChannel_CA ≤ 3 x BWChannel,max | 3 | 1 |
E | 300 MHz < BWChannel_CA ≤ 4 x BWChannel,max | 4 | 1 |
F | 50 MHz < BWChannel_CA ≤ 100 MHz | 2 | 2 |
G | 100 MHz < BWChannel_CA ≤ 150 MHz | 3 | 2 |
H | 150 MHz < BWChannel_CA ≤ 200 MHz | 4 | 2 |
I | 200 MHz < BWChannel_CA ≤ 250 MHz | 5 | 2 |
J | 250 MHz < BWChannel_CA ≤ 300 MHz | 6 | 2 |
K | 300 MHz < BWChannel_CA ≤ 350 MHz | 7 | 2 |
L | 350 MHz < BWChannel_CA ≤ 400 MHz | 8 | 2 |
Note 1 : BWChannel,max is maximum channel bandwidth supported among all bands in a release |
Note 2 : It is mandatory for a UE to be able to fallback to lower order NR CA bandwidth class configuration within a fallback group. It is not mandatory for a UE to be able to fallback to lower order NR CA bandwidth class configuration that belong to a different fallback group |
2.带内连续载波聚合（Intra-band contiguous CA）整理：kangguoying20200825
带内连续载波聚合（Intra-band contiguous CA）它是在一个频段内（如 n41)频点连续的多小区之间载波聚合；
Configuration | BCS | Band | Mode | SCS
(kHz) | SCS bandwidth
max (MHz) | Bandwidth
class | Bandwidth
max (MHz) |
Downlink | Uplink |
CA_n1B |
| 0 | n1 | FDD | 15 | 50 | B | 40 |
30 | 50 |
60 | 50 |
CA_n7B | CA_n7B | 0 | n7 | FDD | 15 | 50 | B | 50 |
30 | 50 |
60 | 50 |
CA_n40B |
| 0 | n40 | TDD | 15 | 50 | B | 100 |
30 | 100 |
60 | 100 |
CA_n41B | CA_n41B | 0 | n41 | TDD | 15 | 50 | B | 100 |
30 | 100 |
60 | 100 |
CA_n41C | CA_n41C | 0 | n41 | TDD | 15 | 50 | C | 180 |
30 | 100 |
60 | 100 |
CA_n41C [1] | CA_n41C | 1 | n41 | TDD | 15 | 50 | C | 190 |
30 | 100 |
60 | 100 |
CA_n48B | CA_n48B | 0 | n48 | TDD | 15 | 50 | B | 40 |
30 | 100 |
60 | 100 |
CA_n48B [1] |
| 1 | n48 | TDD | 15 | 50 | B | 100 |
30 | 100 |
60 | 100 |
CA_n48C |
| 0 | n48 | TDD | 15 | 50 | C | 140 |
30 | 100 |
60 | 100 |
CA_n66B |
| 0 | n66 | FDD | 15 | 40 | B | 50 |
30 | 40 |
60 | 40 |
CA_n71B |
| 0 | n71 | FDD | 15 | 20 | B | 25 |
30 | 20 |
60 |
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CA_n77C | CA_n77C | 0 | n77 | TDD | 15 | 50 | C | 200 |
30 | 100 |
60 | 100 |
CA_n77D |
| 0 | n77 | TDD | 15 | 50 | D | 200 |
30 | 100 |
60 | 100 |
CA_n78B |
| 0 | n78 | TDD | 15 | 50 | B | 70 |
30 | 100 |
60 | 100 |
CA_n78C | CA_n78C | 0 | n78 | TDD | 15 | 50 | C | 200 |
30 | 100 |
60 | 100 |
CA_n78D |
| 0 | n78 | TDD | 15 | 50 | D | 300 |
30 | 100 |
60 | 100 |
CA_n79C | CA_n79C | 0 | n79 | TDD | 15 | 50 | C | 200 |
30 | 100 |
60 | 100 |
CA_n79D |
| 0 | n79 | TDD | 15 | 50 | D | 300 |
30 | 100 |
60 | 100 |
Nb = 18 | Nb = 8 |
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3. 带内不连续载波聚合（Intra-band non contiguous CA）
带内不连续载波聚合（Intra-band non contiguous CA）是在一个频段内（如 n41)频点不连续多小区之间载波聚合；可有效复用零散的频率资源；整理：kangguoying20200825整理：kangguoying20200825
Configuration | BCS | Band | Mode | SCS
(kHz) | SCS bandwidth
max (MHz) | Bandwidth
class | Bandwidth
max (MHz) |
Downlink | Uplink |
CA_n3(2A) |
| 0 | n3 | FDD | 15 | 40 | 2A | 40 |
30 | 40 |
60 | 40 |
CA_n7(2A) |
| 0 | n7 | FDD | 15 | 50 | 2A | 40 |
30 | 50 |
60 | 50 |
CA_n25(2A) |
| 0 | n25 | FDD | 15 | 40 | 2A | 40 |
30 | 40 |
60 | 40 |
CA_n41(2A) |
| 0 | n41 | TDD | 15 | 50 | 2A | 180 |
30 | 100 |
60 | 100 |
CA_n41(2A) [1] |
| 1 | n41 | TDD | 15 | 50 | 2A | 190 |
30 | 100 |
60 | 100 |
CA_n48(2A) |
| 0 | n48 | TDD | 15 | 50 | 2A | 140 |
30 | 100 |
60 | 100 |
CA_n48(3A) |
| 0 | n48 | TDD | 15 | 50 | 3A | 140 |
30 | 100 |
60 | 100 |
CA_n48(4A) |
| 0 | n48 | TDD | 15 | 50 | 4A | 135 |
30 | 100 |
60 | 100 |
CA_n66(2A) |
| 0 | n66 | FDD | 15 | 40 | 2A | 60 |
30 | 40 |
60 | 40 |
CA_n77(2A) |
| 0 | n77 | TDD | 15 | 50 | 2A | 200 |
30 | 100 |
60 | 100 |
CA_n78(2A) |
| 0 | n78 | TDD | 15 | 50 | 2A | 200 |
30 | 100 |
60 | 100 |
CA_n78(2A) [1] |
| 1 | n78 | TDD | 15 | 50 | 2A | 200 |
30 | 100 |
60 | 100 |
Nb = 12 | Nb = 0 |
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频带间载波聚合（双频）是不同频段之间（如n41+n71)的两个载波之间聚合（详细请查协议）
频带间载波聚合（三频）是不同频段之间（如n41+n71+n72)的两个载波之间聚合（详细请查协议）
原文来自：https://www.sqimway.com/nr_band.php 整理：kangguoying20200825
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