5G/NR 频带详解

原文链接:http://www.sharetechnote.com/html/5G/5G_FR_Bandwidth.html

在NR中,3GPP中规定了大约两个大的频率范围。一个是我们通常所说的(sub 6 Ghz),另一个是我们通常所说的毫米波。根据范围,最大带宽和子载波间隔会有所不同。在sub 6 Ghz中,最大带宽为100 Mhz,在毫米波范围内,最大带宽为400 Mhz。一些子载波间隔(15,30 Khz)仅可用于Sub 6 Ghz,并且一些子载波间隔(120 Khz)仅可用于毫米波范围,并且一些子载波间隔(60 Khz)可用于低于6 Ghz和毫米波范围。

以下是此处涉及的主题列表。在这个页面中没有那么多解释。它们大多是一堆表,但是一旦你开始开发(特别是测试)NR设备,你就会经常参考这些表。我只是想把这些表放在单页中,这样你就可以轻松找到这些信息。本页显示的大部分表格均为38.101-1和38.101-2。

1 一张表概括

< Based on 38.101-1 Table 5.2-1, Table 5.4.2.3-1 and 38.104 - Table 5.4.3.3-1>

NR Operating Band

Uplink (UL) operating band

Downlink (DL) operating band

Duplex

Mode

BS receive

BS transmit

UE transmit

UE receive

FUL_low   –  FUL_high

total BW

FDL_low   –  FDL_high

total BW

n1

Frquency

1920 MHz-1980 MHz

60

2110 MHz-2170 MHz

60

FDD

ARFCN

384000 – <20> – 396000

422000 – <20> – 434000

GSCN

[7039 – <1> – 7224]

n2

Frquency

1850 MHz-1910 MHz

60

1930 MHz-1990 MHz

60

FDD

ARFCN

370000 – <20> – 382000

386000 – <20> – 398000

GSCN

[6439 – <1> – 6624]

n3

Frquency

1710 Mhz -1785 MHz

75

1805 MHz-1880 MHz

75

FDD

ARFCN

342000 – <20> – 357000

361000 – <20> – 376000

GSCN

[6022 – <1> – 6258]

n5

Frquency

824 -849 MHz

25

869 MHz-894MHz

25

FDD

ARFCN

164800 – <20> – 169800

173800 – <20> – 178800

GSCN

15 Khz

[2902 – <1> – 2973]

30 khz

[2911 – <1> – 2964]

n7

Frquency

2500 MHz-2570 MHz

70

2620 MHz-2690 MHz

70

FDD

ARFCN

500001 – <3> – 513999

524001 – <3> – 537999

GSCN

[8740 – <1> – 8958]

n8

Frquency

880 MHz-915 MHz

35

925 MHz-960 MHz

35

FDD

ARFCN

176000 – <20> – 78300

185000 – <20> – 192000

GSCN

[3091 – <1> – 3192]

n20

Frquency

832 MHz-862 MHz

30

791 MHz-821 MHz

30

FDD

ARFCN

166400 – <20> – 172400

158200 – <20> – 164200

GSCN

[2644 – <1> – 2727]

n28

Frquency

703 MHz-748 MHz

45

758 MHz-803 MHz

45

FDD

ARFCN

140600 – <20> – 149600

151600 – <20> – 160600

GSCN

[2533 – <1> – 2667]

n38

Frquency

2570 MHz-2620 MHz

50

2570 MHz-2620 MHz

50

TDD

ARFCN

514002 – <3> – 523998

514002 – <3> – 523998

GSCN

[8572 – <1> – 8958]

n41

Frquency

2496 MHz-2690 MHz

194

2496 MHz-2690 MHz

194

TDD

ARFCN

499200 – <3> – 537999

499200 – <3> – 537999

GSCN

15 Khz

[9069] – – [9199]

30 khz

[9070 – <1> – 9198]

n50

Frquency

1432 MHz-1517 MHz

85

1432 MHz-1517 MHz

85

TDD

ARFCN

286400 – <20> – 303400

286400 – <20> – 303400

GSCN

[4780 – <1> – 5049]

n51

Frquency

1427 MHz-1432 MHz

5

1427 MHz-1432 MHz

5

TDD

ARFCN

285400 – <20> – 286400

285400 – <20> – 286400

GSCN

[4762 – <1> – 4764]

n66

Frquency

1710 MHz-1780 MHz

70

2110 MHz-2200 MHz

90

FDD

ARFCN

342000 – <20> – 356000

422000 – <20> – 440000

GSCN

15 Khz

[7039 – <1> – [7326]

30 khz

[7048 – <1> – [7317]

n70

Frquency

1695 MHz-1710 MHz

15

1995 MHz-2020 MHz

25

FDD

ARFCN

339000 – <20> – 342000

399000 – <20> – 404000

GSCN

[6655 – <1> – [6726]

n71

Frquency

663 MHz-698 MHz

35

617 MHz-652 MHz

35

FDD

ARFCN

132600 – <20> – 139600

123400 – <20> – 130400

GSCN

[2062 – <1> – 2166]

n74

Frquency

1427 MHz-1470 MHz

43

1475 MHz-1518 MHz

43

FDD

ARFCN

285400 – <20> – 294000

295000 – <20> – 303600

GSCN

[4924 – <1> – 5052]

n75

Frquency

N/A

1432 Mhz -1517 MHz

85

SDL

ARFCN

N/A

286400 – <20> – 303400

GSCN

[4780 – <1> – 5049]

n76

Frquency

N/A

1427 Mhz -1432 MHz

5

SDL

ARFCN

N/A

285400 – <20> – 286400

GSCN

[4762 – <1> – 4764]

n77

Frquency

3300 MHz- 4200 MHz

900

3300 MHz- 4200 MHz

900

TDD

ARFCN

620000 – <1> – 680000

620000 – <1> – 680000

GSCN

  [9628 – <1> – 10247]

n78

Frquency

3300 MHz-3800 MHz

500

3300 MHz - 3800 MHz

500

TDD

ARFCN

620000 – <1> – 653333

620000 – <1> – 653333

GSCN

[9628 – <1> – 9969]

n79

Frquency

4400 MHz-5000 MHz

600

4400 MHz - 5000 MHz

600

TDD

ARFCN

693333 – <1> – 733333

693333 – <1> – 733333

GSCN

[10393] - –[10802]

n80

Frquency

1710 MHz-1785 MHz

75

N/A

SUL

ARFCN

342000 – <20> – 357000

GSCN

n81

Frquency

880 MHz-915 MHz

35

N/A

SUL

ARFCN

176000 – <20> – 183000

GSCN

n82

Frquency

832 MHz-862 MHz

30

N/A

SUL

ARFCN

166400 – <20> – 172400

GSCN

n83

Frquency

703 MHz-748 MHz

45

N/A

SUL

ARFCN

140600 – <20> –149600

GSCN

n84

Frquency

1920 MHz-1980 MHz

60

N/A

SUL

ARFCN

384000 – <20> – 396000

GSCN


< Based on 38.101-2 Table 5.2-1, Table 5.4.2.2-1 and 38.104 - Table 5.4.3.1-1>

5G/NR 频带详解_第1张图片

2 频率范围

如上所述,在3GPP中定义了两种类型的频率范围。Sub 6 Ghz范围称为FR1,毫米波范围称为FR2。FR1(sub 6 Ghz)和FR2(毫米波)的确切频率范围定义如下。

<38.101-1   表5.1-1:频率范围的定义>

clip_image002

3 频谱和带宽

< 38.101-1图5.3.3-1一个NR信道的信道带宽和传输带宽配置的定义>

5G/NR 频带详解_第2张图片

这个插图看起来很明显,说“通道BW =两侧的最大传输带宽+保护带”,但是当你看下面的表时,由于最大传输带宽是以RB为单位指定的,保护带是以khz为单位指定。

为了清楚说明这一点,我的日本朋友Tanaka Junya提出了一个简单的等式和例子,如下所示。

信道带宽(CBW)约为[N_RB x NumOfSubcarrier x SCS + GuardBand x 2]

,其中N_RB = 38.101-1中的最大传输带宽表5.3.2-1,38.101-2表5.3.2-1

          NumberOfSubcarrier = 12(常数)

          SCS =子载波间距=实验栏中的数字为(A)

在38.101-1表5.3.2-1,38.101-2表5.3.2-1

          GuardBand = 38.101-1表5.3.3-1,38.101-2表5.3.3-1中C(C)部分的编号

示例>

在CBW = 5Mhz的情况下,SCS = 30 Khz,意味着38.101-1表5.3.2-1中的第二行

[N_RB x NumOfSubcarrier x SCS] = 11 x 12 x 30 = 3960 [kHz] -----(a)

[GuardBand x 2] = 505 x 2 = 1010 --------------------------------(b)

(a)+(b)= 3960 + 1010 = 4970 kHz = 4.970 Mhz,接近5 Mhz CBW

注意:保护带在表中定义为“最小”值,因此(a)+(b)可能与CBW不完全相同,但足够接近CBW

< 38.101-1表5.3.2-1:最大传输带宽配置NRB:FR1>

5G/NR 频带详解_第3张图片

< 38.101-2表5.3.2-1:最大传输带宽配置NRB:FR2>

5G/NR 频带详解_第4张图片

< 38.101-1表5.3.3-1:每个UE信道带宽和SCS(kHz)的最小保护频带:FR1>

5G/NR 频带详解_第5张图片

< 38.101-2表5.3.3-1:每个UE信道带宽和SCS(kHz)的最小保护频带:FR2>

5G/NR 频带详解_第6张图片

4 支持每个频段的频道带宽

< 38.101-1 Table 5.3.5-1 Channel Bandwidths for Each NR band : FR1 >

NR band / SCS / UE Channel bandwidth

NR Band

SCS

5 MHz

10 MHz

15 MHz

20 MHz

25 MHz

30 MHz

40 MHz

50 MHz

60 MHz

80 MHz

100 MHz

kHz

n1

15

Yes

Yes

Yes

Yes

30

Yes

Yes

Yes

60

Yes

Yes

Yes

n2

15

Yes

Yes

Yes

Yes

30

Yes

Yes

Yes

60

Yes

Yes

Yes

n3

15

Yes

Yes

Yes

Yes

Yes

Yes

30

Yes

Yes

Yes

Yes

Yes

60

Yes

Yes

Yes

Yes

Yes

n5

15

Yes

Yes

Yes

Yes

30

Yes

Yes

Yes

60

n7

15

Yes

Yes

Yes

Yes

30

Yes

Yes

Yes

60

Yes

Yes

Yes

n8

15

Yes

Yes

Yes

Yes

30

Yes

Yes

Yes

60

n20

15

Yes

Yes

Yes

Yes

30

Yes

Yes

Yes

60

n28

15

Yes

Yes

Yes

Yes

30

Yes

Yes

Yes

60

n38

15

Yes

Yes

Yes

Yes

30

Yes

Yes

Yes

60

Yes

Yes

Yes

n41

15

Yes

Yes

Yes

Yes

Yes

30

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

60

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

n50

15

Yes

Yes

Yes

Yes

Yes

Yes

30

Yes

Yes

Yes

Yes

Yes

Yes

Yes

60

Yes

Yes

Yes

n51

15

Yes

30

60

n66

15

Yes

Yes

Yes

Yes

30

Yes

Yes

Yes

Yes

60

Yes

Yes

Yes

Yes

n70

15

Yes

Yes

Yes

Yes

Yes

30

Yes

Yes

Yes

Yes

60

Yes

Yes

Yes

Yes

n71

15

Yes

Yes

Yes

Yes

30

Yes

Yes

Yes

60

n74

15

Yes

Yes

Yes

Yes

30

Yes

Yes

Yes

60

Yes

Yes

Yes

n75

15

Yes

Yes

Yes

Yes

30

Yes

Yes

Yes

60

Yes

Yes

Yes

n76

15

Yes

30

60

n77

15

Yes

Yes

Yes

Yes

30

Yes

Yes

Yes

Yes

Yes

Yes

Yes

60

Yes

Yes

Yes

Yes

Yes

Yes

Yes

n78

15

Yes

Yes

Yes

Yes

30

Yes

Yes

Yes

Yes

Yes

Yes

Yes

60

Yes

Yes

Yes

Yes

Yes

Yes

Yes

n79

15

Yes

Yes

30

Yes

Yes

Yes

Yes

Yes

60

Yes

Yes

Yes

Yes

Yes

n80

15

Yes

Yes

Yes

Yes

Yes

Yes

30

Yes

Yes

Yes

Yes

Yes

60

Yes

Yes

Yes

Yes

Yes

n81

15

Yes

Yes

Yes

Yes

30

Yes

Yes

Yes

60

n82

15

Yes

Yes

Yes

Yes

30

Yes

Yes

Yes

60

n83

15

Yes

Yes

Yes

Yes

30

Yes

Yes

Yes

60

n84

15

Yes

Yes

Yes

Yes

30

Yes

Yes

Yes

60

Yes

Yes

Yes

< 38.101-2 Table 5.3.5-1 Channel bandwidths for each NR band : FR2 >

NR band / SCS / UE Channel bandwidth

NR Band

SCS (kHz)

50 MHz

100 MHz

200 MHz

400 MHz

n257

60

Yes

Yes

Yes

Yes

120

Yes

Yes

Yes

Yes

n258

60

Yes

Yes

Yes

Yes

120

Yes

Yes

Yes

Yes

n260

60

Yes

Yes

Yes

Yes

120

Yes

Yes

Yes

Yes

5 NR-ARFCN

< 38.101-2 Table 5.4.2-1: NR-ARFCN parameters for the global frequency raster >

Frequency range

ΔFGlobal

FREF-Offs [MHz]

NREF-Offs

Range of NREF

0 – 3000 MHz

5 kHz

0 MHz

0

0 – 599999

3000 – 24250 MHz

15 kHz

3000 MHz

600000

600000 – 2016666

24250 – 100000 MHz

60 kHz

24250 MHz

2016667

2016667 – 3279167

< 38.101-1  Table 5.4.2.3-1: Applicable NR-ARFCN per operating band >

NR Operating Band

ΔFRaster

Uplink

Downlink

[kHz]

Range of NREF

Range of NREF

(First – – Last)

(First – – Last)

n1

100 kHz

384000 – <20> – 396000

422000 – <20> – 434000

n2

100 kHz

370000 – <20> – 382000

386000 – <20> – 398000

n3

100 kHz

342000 – <20> – 357000

361000 – <20> – 376000

n5

100 kHz

164800 – <20> – 169800

173800 – <20> – 178800

n7

15 kHz

500001 – <3> – 513999

524001 – <3> – 537999

n8

100 kHz

176000 – <20> – 78300

185000 – <20> – 192000

n20

100 kHz

166400 – <20> – 172400

158200 – <20> – 164200

n28

100 kHz

140600 – <20> – 149600

151600 – <20> – 160600

n38

15 kHz

514002 – <3> – 523998

514002 – <3> – 523998

n41

15 kHz

499200 – <3> – 537999

499200 – <3> – 537999

n50

100 kHz

286400 – <20> – 303400

286400 – <20> – 303400

n51

100 kHz

285400 – <20> – 286400

285400 – <20> – 286400

n66

100 kHz

342000 – <20> – 356000

422000 – <20> – 440000

n70

100 kHz

339000 – <20> – 342000

399000 – <20> – 404000

n71

100 kHz

132600 – <20> – 139600

123400 – <20> – 130400

n74

100 kHz

285400 – <20> – 294000

295000 – <20> – 303600

n75

100 kHz

N/A

286400 – <20> – 303400

n76

100 kHz

N/A

285400 – <20> – 286400

n77

15 kHz

620000 – <1> – 680000

620000 – <1> – 680000

n78

15 kHz

620000 – <1> – 653333

620000 – <1> – 653333

n79

15 kHz

693333 – <1> – 733333

693333 – <1> – 733333

n80

100 kHz

342000 – <20> – 357000

N/A

n81

100 kHz

176000 – <20> – 183000

N/A

n82

100 kHz

166400 – <20> – 172400

N/A

n83

100 kHz

140600 – <20> –149600

N/A

n84

100 kHz

384000 – <20> – 396000

N/A

< 38.101-2  Table 5.4.2.2-1: Applicable NR-ARFCN per operating band >

NR Operating Band

ΔFRaster

Uplink and Downlink

[kHz]

Range of NREF

(First – – Last)

n257

60 kHz

2054167 – <1> – 2104166

n258

60 kHz

2016667 – <1> – 2070833

n260

60 kHz

2229167 – <1> – 2279166

6 GSCN

当我第一次看到称为GSCN(全局同步光栅通道)的频率规范时。我问自己'为什么我们需要这种额外的频率规格,当我们已经有现有的频率规格(光栅)称为ARFCN?'时。

我仍然不知道3GPP TS或TDocs中的官方答案(我未能在规范中找到答案)。所以我想出了如下个人猜测:

当在NSA中激活NR时,UE不需要对SSB进行盲搜索,因为频率,子载波间隔等都是由LTE RRC连接重新配置消息配置的。但是在SA中,UE需要盲目地检测SSB,因为UE需要在它获得任何RRCMIBSIB)之前检测到它。如果UE需要基于ARFCN栅格搜索SSB,则ARFCN栅格非常窄,因此需要很长时间。因此,最好以更宽的步骤定义SSB搜索频率。这是GSCN的用途/目的。

< 38.104 v15.3.0 - Table 5.4.3.1-1: GSCN parameters for the global frequency raster >

Frequency range

SS block frequency position SSREF

GSCN

Range of GSCN

0 – 3000 MHz

N * 1200kHz + M * 50 kHz
N=1:2499, M={1,3,5} (Default M=3)

3N + (M-3)/2

2 – 7498

3000 – 24250 MHz

3000 MHz + N * 1.44 MHz
N= 0:14756

7499 + N

7499 – 22255

< 38.104 v15.1.0 - Table 5.4.3.3-1: Applicable SS raster entries per operating band (FR1) >

NR Operating Band

SS  Block SCS

SS Block pattern1

Range of GSCN
(First – – Last)

n1

15 kHz

Case A

[7039 – <1> – 7224]

n2

15 kHz

Case A

[6439 – <1> – 6624]

n3

15 kHz

Case A

[6022 – <1> – 6258]

n5

15 kHz

Case A

[2902 – <1> – 2973]

30 kHz

Case B

[2911 – <1> – 2964]

n7

15 kHz

Case A

[8740 – <1> – 8958]

n8

15 kHz

Case A

[3091 – <1> – 3192]

n20

15 kHz

Case A

[2644 – <1> – 2727]

n28

15 kHz

Case A

[2533 – <1> – 2667]

n38

15 kHz

Case A

[8572 – <1> – 8958]

n41

15 kHz

Case A

[9069] – – [9199]

30 kHz

Case C

[9070 – <1> – 9198]

n50

15 kHz

Case A

[4780 – <1> – 5049]

n51

15 kHz

Case A

[4762 – <1> – 4764]

n66

15 kHz

Case A

[7039 – <1> – [7326]

30 kHz

Case B

[7048 – <1> – [7317]

n70

15 kHz

Case A

[6655 – <1> – [6726]

n71

15 kHz

Case A

[2062 – <1> – 2166]

n74

15 kHz

Case A

[4924 – <1> – 5052]

n75

15 kHz

Case A

[4780 – <1> – 5049]

n76

15 kHz

Case A

[4762 – <1> – 4764]

n77

30 kHz

Case C

  [9628 – <1> – 10247]

n78

30 kHz

Case C

[9628 – <1> – 9969]

n79

30 kHz

Case C

[10393] – – [10802]

< 38.104 v15.1.0 - Table 5.4.3.3-2: Applicable SS raster entries per operating band (FR2) >

NR Operating Band

SS Block SCS

SS Block pattern1

Range of GSCN
(First – – Last)

n257

120 kHz

Case D

[24306 – <1> – 24476]

240 kHz

Case E

[24308 – <2> – 24474]

n258

120 kHz

Case D

[24175 – <1> – 24361]

240 kHz

Case E

[24176 – <2> – 24360]

n260

120 kHz

Case D

[24913 – <1> – 25084]

240 kHz

Case E

[24916 – <2> – 25080]

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