5G 载波聚合

天堂枫叶

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；[url=]整理：[/url][url=]kangguoying20200825[/url]

1.载波聚合等级

      在5G(NR)网络中载波聚合共分为12个等级，带宽最高达400M,最大支撑8个载波的聚合；具体见下表：[url=]：[/url]

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）

    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	[url=]n1[/url]	FDD	15	50	B	40
					30	50
					60	50
CA_n7B	CA_n7B	0	[url=]n7[/url]	FDD	15	50	B	50
					30	50
					60	50
CA_n40B		0	[url=]n40[/url]	TDD	15	50	B	100
					30	100
					60	100
CA_n41B	CA_n41B	0	[url=]n41[/url]	TDD	15	50	B	100
					30	100
					60	100
CA_n41C	CA_n41C	0	[url=]n41[/url]	TDD	15	50	C	180
					30	100
					60	100
CA_n41C [1]	CA_n41C	1	[url=]n41[/url]	TDD	15	50	C	190
					30	100
					60	100
CA_n48B	CA_n48B	0	[url=]n48[/url]	TDD	15	50	B	40
					30	100
					60	100
CA_n48B [1]		1	[url=]n48[/url]	TDD	15	50	B	100
					30	100
					60	100
CA_n48C		0	[url=]n48[/url]	TDD	15	50	C	140
					30	100
					60	100
CA_n66B		0	[url=]n66[/url]	FDD	15	40	B	50
					30	40
					60	40
CA_n71B		0	[url=]n71[/url]	FDD	15	20	B	25
					30	20
					60
CA_n77C	CA_n77C	0	[url=]n77[/url]	TDD	15	50	C	200
					30	100
					60	100
CA_n77D		0	[url=]n77[/url]	TDD	15	50	D	200
					30	100
					60	100
CA_n78B		0	[url=]n78[/url]	TDD	15	50	B	70
					30	100
					60	100
CA_n78C	CA_n78C	0	[url=]n78[/url]	TDD	15	50	C	200
					30	100
					60	100
CA_n78D		0	[url=]n78[/url]	TDD	15	50	D	300
					30	100
					60	100
CA_n79C	CA_n79C	0	[url=]n79[/url]	TDD	15	50	C	200
					30	100
					60	100
CA_n79D		0	[url=]n79[/url]	TDD	15	50	D	300
					30	100
					60	100
Nb = 18	Nb = 8