LTE的EARFCN和band之间的对应关系-编程知识

一、通过EARFCN查询对应band

工作中经常遇到只知道EARFCN而需要计算band的情况，因此查了相关协议，找到了他们之间的对应关系，可以直接查表，非常方便。

具体见：

3GPP TS 36.101

5.7.3 Carrier frequency and EARFCN

The carrier frequency in the uplink and downlink is designated by the E-UTRA Absolute Radio Frequency Channel Number (EARFCN) in the range 0 – 262143. The relation between EARFCN and the carrier frequency in MHz for the downlink is given by the following equation, where $F_{DL\_low}$ and $N_{Offs-DL}$ are given in Table 5.7.3-1 and $N_{DL}$ is the downlink EARFCN.
$F_{DL}$ = $F_{DL\_low}$ + 0.1( $N_{DL}$ – $N_{Offs-DL}$ )

The relation between EARFCN and the carrier frequency in MHz for the uplink is given by the following equation where $F_{UL\_low}$ and $N_{Offs-UL}$ are given in Table 5.7.3-1 and $N_{UL}$ is the uplink EARFCN.
$F_{UL}$ = $F_{UL\_low}$ + 0.1( $N_{UL}$ – $N_{Offs-UL}$ )

1、查询表格

Table 5.7.3-1: E-UTRA channel numbers

E-UTRA Operating Band	Downlink			Uplink
E-UTRA Operating Band	$F_{DL\_low}$ (MHz)	$N_{Offs-DL}$	Range of $N_{DL}$	$F_{UL\_low}$ (MHz)	$N_{Offs-UL}$	Range of $N_{UL}$
1	2110	0	0 – 599	1920	18000	18000 – 18599
2	1930	600	600 – 1199	1850	18600	18600 – 19199
3	1805	1200	1200 – 1949	1710	19200	19200 – 19949
4	2110	1950	1950 – 2399	1710	19950	19950 – 20399
5	869	2400	2400 – 2649	824	20400	20400 – 20649
6	875	2650	2650 – 2749	830	20650	20650 – 20749
7	2620	2750	2750 – 3449	2500	20750	20750 – 21449
8	925	3450	3450 – 3799	880	21450	21450 – 21799
9	1844.9	3800	3800 – 4149	1749.9	21800	21800 – 22149
10	2110	4150	4150 – 4749	1710	22150	22150 – 22749
11	1475.9	4750	4750 – 4949	1427.9	22750	22750 – 22949
12	729	5010	5010 – 5179	699	23010	23010 – 23179
13	746	5180	5180 – 5279	777	23180	23180 – 23279
14	758	5280	5280 – 5379	788	23280	23280 – 23379
…
17	734	5730	5730 – 5849	704	23730	23730 – 23849
18	860	5850	5850 – 5999	815	23850	23850 – 23999
19	875	6000	6000 – 6149	830	24000	24000 – 24149
20	791	6150	6150 – 6449	832	24150	24150 – 24449
21	1495.9	6450	6450 – 6599	1447.9	24450	24450 – 24599
22	3510	6600	6600 – 7399	3410	24600	24600 – 25399
23	2180	7500	7500 – 7699	2000	25500	25500 – 25699
24	1525	7700	7700 – 8039	1626.5	25700	25700 – 26039
25	1930	8040	8040 – 8689	1850	26040	26040 – 26689
26	859	8690	8690 – 9039	814	26690	26690 – 27039
27	852	9040	9040 – 9209	807	27040	27040 – 27209
28	758	9210	9210 – 9659	703	27210	27210 – 27659
$29^{2}$	717	9660	9660 – 9769	N/A
30	2350	9770	9770 – 9869	2305	27660	27660 – 27759
31	462.5	9870	9870 – 9919	452.5	27760	27760 – 27809
$32^{2}$	1452	9920	9920 – 10359	N/A
33	1900	36000	36000 – 36199	1900	36000	36000 – 36199
34	2010	36200	36200 – 36349	2010	36200	36200 – 36349
35	1850	36350	36350 – 36949	1850	36350	36350 – 36949
36	1930	36950	36950 – 37549	1930	36950	36950 – 37549
37	1910	37550	37550 – 37749	1910	37550	37550 – 37749
38	2570	37750	37750 – 38249	2570	37750	37750 – 38249
39	1880	38250	38250 – 38649	1880	38250	38250 – 38649
40	2300	38650	38650 – 39649	2300	38650	38650 – 39649
41	2496	39650	39650 –41589	2496	39650	39650 –41589
42	3400	41590	41590 – 43589	3400	41590	41590 – 43589
43	3600	43590	43590 – 45589	3600	43590	43590 – 45589
44	703	45590	45590 – 46589	703	45590	45590 – 46589
45	1447	46590	46590 – 46789	1447	46590	46590 – 46789
46	5150	46790	46790 – 54539	5150	46790	46790 – 54539
47	5855	54540	54540 - 55239	5855	54540	54540 – 55239
48	3550	55240	55240 – 56739	3550	55240	55240 – 56739
49	3550	56740	56740 – 58239	3550	56740	56740 – 58239
50	1432	58240	58240 - 59089	1432	58240	58240 - 59089
51	1427	59090	59090 - 59139	1427	59090	59090 - 59139
52	3300	59140	59140 - 60139	3300	59140	59140 - 60139
53	2483.5	60140	60140 - 60254	2483.5	60140	60140 - 60254
54	1670	60255	60255 - 60304	1670	60255	60255 - 60304
…
64	Reserved
65	2110	65536	65536 – 66435	1920	131072	131072 – 131971
$66^{5}$	2110	66436	66436 – 67335	1710	131972	131972 – 132671
$67^{2}$	738	67336	67336 – 67535	N/A
68	753	67536	67536 - 67835	698	132672	132672 - 132971
$69^{2}$	2570	67836	67836 - 68335	N/A
$70^{6}$	1995	68336	68336 - 68585	1695	132972	132972 - 133121
71	617	68586	68586 - 68935	663	133122	133122 - 133471
72	461	68936	68936 - 68985	451	133472	133472 - 133521
73	460	68986	68986 - 69035	450	133522	133522 - 133571
74	1475	69036	69036 - 69465	1427	133572	133572 - 134001
$75^{2}$	1432	69466	69466 - 70315	N/A
$76^{2}$	1427	70316	70316 - 70365	N/A
85	728	70366	70366 - 70545	698	134002	134002 - 134181
87	420	70546	70546 - 70595	410	134182	134182 - 134231
88	422	70596	70596 - 70645	412	134232	134232 - 134281
103	757	70646	70646 – 70655	787	134282	134282 – 134291
$106^{7}$	935	70656	70656 – 70705	896	134292	134292 – 134341
NOTE 1: The channel numbers that designate carrier frequencies so close to the operating band edges that the carrier extends beyond the operating band edge shall not be used. This implies that the first 7, 15, 25, 50, 75 and 100 channel numbers at the lower operating band edge and the last 6, 14, 24, 49, 74 and 99 channel numbers at the upper operating band edge shall not be used for channel bandwidths of 1.4, 3, 5, 10, 15 and 20 MHz respectively. NOTE 2: Restricted to E-UTRA operation when carrier aggregation is configured. NOTE 3: For ProSe and V2X the corresponding UL channel number are also specified for the DL for the associated ProSe/V2X operating bands i.e. ProSe_FUL = FUL and ProSe_FDL = FUL; V2X_FUL = FDL and V2X_FDL = FUL. NOTE 4: Requirements for uplink operations are not specified in this version of the specification. NOTE 5: The range 2180-2200 MHz of the DL operating band is restricted to E-UTRA operation when carrier aggregation is configured. NOTE 6: The range 2010-2020 MHz of the DL operating band is restricted to E-UTRA operation when carrier aggregation is configured and TX-RX separation is 300 MHz The range 2005-2020 MHz of the DL operating band is restricted to E-UTRA operation when carrier aggregation is configured and TX-RX separation is 295 MHz. NOTE 7: In the present version of the specification, only EARFCN 70686 and 134322 is applicable for 3 MHz channel bandwidth.

从表格5.7.3-1可以看出，知道了EARFCN，我们看它是在Range of $N_{DL}$ 的哪一行，就可确定它对应的band了。

二、协议对各band的定义

各band的具体定义可参考：

3GPP TS 36.101

5.5 Operating bands
E-UTRA is designed to operate in the operating bands defined in Table 5.5-1.

1、定义表格

Table 5.5-1 E-UTRA operating bands

E-UTRA Operating Band	Uplink (UL) operating band BS receive UE transmit	Downlink (DL) operating band BS transmit UE receive	Duplex Mode
E-UTRA Operating Band	$F_{UL\_low}$ – $F_{UL\_high}$	$F_{DL\_low}$ – $F_{DL\_high}$	Duplex Mode
1	1920 MHz – 1980 MHz	2110 MHz – 2170 MHz	FDD
2	1850 MHz – 1910 MHz	1930 MHz – 1990 MHz	FDD
3	1710 MHz – 1785 MHz	1805 MHz – 1880 MHz	FDD
4	1710 MHz – 1755 MHz	2110 MHz – 2155 MHz	FDD
5	824 MHz – 849 MHz	869 MHz – 894MHz	FDD
$6^{1}$	830 MHz – 840 MHz	875 MHz – 885 MHz	FDD
7	2500 MHz – 2570 MHz	2620 MHz – 2690 MHz	FDD
8	880 MHz – 915 MHz	925 MHz – 960 MHz	FDD
9	1749.9 MHz – 1784.9 MHz	1844.9 MHz – 1879.9 MHz	FDD
10	1710 MHz – 1770 MHz	2110 MHz – 2170 MHz	FDD
11	1427.9 MHz – 1447.9 MHz	1475.9 MHz – 1495.9 MHz	FDD
12	699 MHz – 716 MHz	729 MHz – 746 MHz	FDD
13	777 MHz – 787 MHz	746 MHz – 756 MHz	FDD
14	788 MHz – 798 MHz	758 MHz – 768 MHz	FDD
15	Reserved	Reserved	FDD
16	Reserved	Reserved	FDD
17	704 MHz – 716 MHz	734 MHz – 746 MHz	FDD
18	815 MHz – 830 MHz	860 MHz – 875 MHz	FDD
19	830 MHz – 845 MHz	875 MHz – 890 MHz	FDD
20	832 MHz – 862 MHz	791 MHz – 821 MHz	FDD
21	1447.9 MHz – 1462.9 MHz	1495.9 MHz – 1510.9 MHz	FDD
22	3410 MHz – 3490 MHz	3510 MHz – 3590 MHz	FDD
$23^{1}$	2000 MHz – 2020 MHz	2180 MHz – 2200 MHz	FDD
$24^{17}$	1626.5 MHz – 1660.5 MHz	1525 MHz – 1559 MHz	FDD
25	1850 MHz – 1915 MHz	1930 MHz – 1995 MHz	FDD
26	814 MHz – 849 MHz	859 MHz – 894 MHz	FDD
27	807 MHz – 824 MHz	852 MHz – 869 MHz	FDD
28	703 MHz – 748 MHz	758 MHz – 803 MHz	FDD
29	N/A	717 MHz – 728 MHz	$FDD^{2}$
$30^{15}$	2305 MHz – 2315 MHz	2350 MHz – 2360 MHz	FDD
31	452.5 MHz – 457.5 MHz	462.5 MHz – 467.5 MHz	FDD
32	N/A	1452 MHz – 1496 MHz	$FDD^{2}$
33	1900 MHz – 1920 MHz	1900 MHz – 1920 MHz	TDD
34	2010 MHz – 2025 MHz	2010 MHz – 2025 MHz	TDD
35	1850 MHz – 1910 MHz	1850 MHz – 1910 MHz	TDD
36	1930 MHz – 1990 MHz	1930 MHz – 1990 MHz	TDD
37	1910 MHz – 1930 MHz	1910 MHz – 1930 MHz	TDD
38	2570 MHz – 2620 MHz	2570 MHz – 2620 MHz	TDD
39	1880 MHz – 1920 MHz	1880 MHz – 1920 MHz	TDD
40	2300 MHz – 2400 MHz	2300 MHz – 2400 MHz	TDD
41	2496 MHz 2690 MHz	2496 MHz 2690 MHz	TDD
42	3400 MHz – 3600 MHz	3400 MHz – 3600 MHz	TDD
43	3600 MHz – 3800 MHz	3600 MHz – 3800 MHz	TDD
44	703 MHz – 803 MHz	703 MHz – 803 MHz	TDD
45	1447 MHz – 1467 MHz	1447 MHz – 1467 MHz	TDD
46	5150 MHz – 5925 MHz	5150 MHz – 5925 MHz	$TDD^{8}$
47	5855 MHz – 5925 MHz	5855 MHz – 5925 MHz	$TDD^{11}$
48	3550 MHz – 3700 MHz	3550 MHz – 3700 MHz	TDD
49	3550 MHz – 3700 MHz	3550 MHz – 3700 MHz	$TDD^{16}$
50	1432 MHz - 1517 MHz	1432 MHz - 1517 MHz	$TDD^{13}$
51	1427 MHz - 1432 MHz	1427 MHz - 1432 MHz	$TDD^{13}$
52	3300 MHz - 3400 MHz	3300 MHz - 3400 MHz	TDD
53	2483.5 MHz - 2495 MHz	2483.5 MHz - 2495 MHz	TDD
54	1670 MHz - 1675 MHz	1670 MHz - 1675 MHz	TDD
…
64	Reserved
65	1920 MHz – 2010 MHz	2110 MHz – 2200 MHz	FDD
66	1710 MHz – 1780 MHz	2110 MHz – 2200 MHz	$FDD^{4}$
67	N/A	738 MHz – 758 MHz	$FDD^{2}$
68	698 MHz – 728 MHz	753 MHz – 783 MHz	FDD
69	N/A	2570 MHz – 2620 MHz	$FDD^{2}$
70	1695 MHz – 1710 MHz	1995 MHz – 2020 MHz	$FDD^{10}$
71	663 MHz – 698 MHz	617 MHz – 652 MHz	FDD
72	451 MHz – 456 MHz	461 MHz – 466 MHz	FDD
73	450 MHz – 455 MHz	460 MHz – 465 MHz	FDD
74	1427 MHz – 1470 MHz	1475 MHz – 1518 MHz	FDD
75	N/A	1432 MHz – 1517 MHz	$FDD^{2}$
76	N/A	1427 MHz – 1432 MHz	$FDD^{2}$
85	698 MHz – 716 MHz	728 MHz – 746 MHz	FDD
87	410 MHz – 415 MHz	420 MHz – 425 MHz	FDD
88	412 MHz – 417 MHz	422 MHz – 427 MHz	FDD
$103^{18}$	787 MHz – 788 MHz	757 MHz – 758 MHz	FDD
106	896 MHz – 901 MHz	935 MHz – 940 MHz	FDD
NOTE 1: Band 6, 23 is not applicable NOTE 2: Restricted to E-UTRA operation when carrier aggregation is configured. The downlink operating band is paired with the uplink operating band (external) of the carrier aggregation configuration that is supporting the configured Pcell. NOTE 3: A UE that complies with the E-UTRA Band 65 minimum requirements in this specification shall also comply with the E-UTRA Band 1 minimum requirements. NOTE 4: The range 2180-2200 MHz of the DL operating band is restricted to E-UTRA operation when carrier aggregation is configured. NOTE 5: A UE that supports E-UTRA Band 66 shall receive in the entire DL operating band NOTE 6: A UE that supports E-UTRA Band 66 and CA operation in any CA band shall also comply with the minimum requirements specified for the DL CA configurations CA_66B, CA_66C and CA_66A-66A. NOTE 7: A UE that complies with the E-UTRA Band 66 minimum requirements in this specification shall also comply with the E-UTRA Band 4 minimum requirements. NOTE 8: This band is an unlicensed band restricted to licensed-assisted operation using Frame Structure Type 3 NOTE 9: In this version of the specification, restricted to E-UTRA DL operation when carrier aggregation is configured. NOTE 10: The range 2010-2020 MHz of the DL operating band is restricted to E-UTRA operation when carrier aggregation is configured and TX-RX separation is 300 MHz The range 2005-2020 MHz of the DL operating band is restricted to E-UTRA operation when carrier aggregation is configured and TX-RX separation is 295 MHz. NOTE 11: This band is unlicensed band used for V2X communication. There is no expected network deployment in this band so Frame Structure Type 1 is used. NOTE 12: A UE that complies with the E-UTRA Band 74 minimum requirements in this specification shall also comply with the E-UTRA Band 11 and Band 21 minimum requirements. NOTE 13: UE that complies with the E-UTRA Band 50 minimum requirements in this specification shall also comply with the E-UTRA Band 51 minimum requirements. NOTE 14: A UE that complies with the E-UTRA Band 75 minimum requirements in this specification shall also comply with the E-UTRA Band 76 minimum requirements. NOTE 15: Uplink transmission is not allowed at this band for UE with external vehicle-mounted antennas. NOTE 16: This band is restricted to licensed-assisted operation using Frame Structure Type 3 NOTE 17: DL operation in this band is restricted to 1526 – 1536 MHz and UL operation is restricted to 1627.5 – 1637.5 MHz and 1646.5 – 1656.5 MHz. NOTE 18: This band is restricted to NB-IoT operation only