5G NR Spectrum

Band n2 (5G NR, 1900 MHz PCS)

Q: How does Band n2 compare to Band n25?

Band n25 is an extended version of Band n2. Band n2 covers 1850-1910/1930-1990 MHz (60 MHz paired). Band n25 covers 1850-1915/1930-1995 MHz (65 MHz paired), adding 5 MHz of G-block PCS spectrum on each side. Devices supporting Band n25 inherently support n2 frequencies, but n2-only devices cannot use the extended n25 blocks. Sprint (now T-Mobile) held most G-block licenses. In practice, n25 has largely superseded n2 in the US market because most modern chipsets support the wider band.

Q: What performance does Band n2 provide for 5G?

Band n2 with DSS provides 50-100 Mbps downlink on a 20 MHz carrier, similar to Band n1. The primary benefit is extending 5G coverage to existing PCS sites without new spectrum acquisitions. At 1900 MHz, cell radius is 1-3 km urban with moderate building penetration (12-18 dB residential). In EN-DC mode (DC_B2A-n41C or DC_B2A-n77C), the PCS LTE anchor provides reliable connectivity while the mid-band NR layer delivers high throughput.

/band en-two/

The 5G NR equivalent of LTE Band 2, operating at 1850 to 1910 MHz uplink and 1930 to 1990 MHz downlink (60 MHz paired FDD). Uses the US PCS 1900 MHz allocation, originally the foundation of digital cellular in North America. Deployed by T-Mobile and AT&T via Dynamic Spectrum Sharing to extend 5G coverage across existing PCS infrastructure without new spectrum acquisitions. Largely superseded by the wider Band n25 in modern chipsets.

UL: 1850 – 1910 MHz

DL: 1930 – 1990 MHz

Mode: FDD (DSS with LTE B2)

Understanding Band n2

PCS 1900 MHz was the spectrum that launched the US digital cellular revolution. The FCC's 1994 to 1996 PCS auctions raised $10.2 billion, funding buildout of nationwide GSM and CDMA networks. Three decades later, this same spectrum is being repurposed for 5G NR via Dynamic Spectrum Sharing, extending the lifecycle of infrastructure investments made in the 1990s.

At 1900 MHz, Band n2 provides mid-band coverage with 1 to 3 km cell radius in urban areas. The 60 MHz paired allocation supports three to four operators with 10 to 20 MHz each. DSS enables gradual 4G-to-5G migration: as LTE traffic declines, more resources shift to NR, eventually enabling full 5G-only operation. Band n2 is typically used as an EN-DC anchor or secondary carrier alongside dedicated NR on n41 or n77.

Band n2 Technical Parameters

Frequency (same as LTE Band 2):
UL: 1850 – 1910 MHz (60 MHz)
DL: 1930 – 1990 MHz (60 MHz)
Duplex spacing: 80 MHz

NR Configuration:
SCS: 15 kHz (FDD) | Max channel: 20 MHz
DSS DL throughput: 50–100 Mbps

Band n2 vs. n25:
n2: 1850–1910/1930–1990 (60 MHz paired)
n25: 1850–1915/1930–1995 (65 MHz paired)
n25 adds G-block PCS (5 MHz each side)

US 1900 MHz Band Family

NR Band	LTE Equiv	Frequency	Paired BW	Operators
n2	Band 2	1850-1990 MHz	60 MHz	T-Mobile, AT&T
n25	Band 25	1850-1995 MHz	65 MHz	T-Mobile (ex-Sprint)
n66	Band 66	1710-2200 MHz	70 MHz	T-Mobile, AT&T

Common Questions

Frequently Asked Questions

What is PCS spectrum and how does Band n2 use it?

PCS (Personal Communications Service) at 1900 MHz was the first US digital cellular spectrum, auctioned 1994 to 1996 for $10.2B. Originally GSM/CDMA, then LTE Band 2, now being refarmed to 5G NR via DSS. T-Mobile and AT&T deploy n2 to extend 5G across PCS sites, supplementing dedicated n41 and n77 NR carriers.

How does Band n2 compare to Band n25?

n25 is an extended version of n2. n2: 60 MHz paired. n25: 65 MHz paired (adds 5 MHz G-block each side). Devices supporting n25 cover n2 frequencies, but not vice versa. Sprint (now T-Mobile) held G-block. In practice, n25 supersedes n2 in modern chipsets.

What performance does Band n2 provide for 5G?

DSS on 20 MHz: 50 to 100 Mbps DL. Cell radius 1 to 3 km urban. Building penetration 12 to 18 dB. Primary value is coverage extension. In EN-DC (DC_B2A-n41C), PCS provides reliable connectivity while n41 delivers capacity. Aggregate throughput reaches 1 to 2 Gbps.

Related Terms

← Band n12 Band n20 →

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