Category: Technical Guide

Carrier Aggregation (CA) is one of the most important yet often misunderstood features in 5G NR CPE. This guide explains how CA works and why it matters for your FWA deployment.

What is 5G NR Carrier Aggregation?

Carrier Aggregation allows a CPE device to combine multiple frequency bands simultaneously, increasing total bandwidth and throughput. In 5G NR, CA supports aggregation of up to 16 component carriers (CCs) in FR1 (Sub-6GHz) and FR2 (mmWave), though commercial CPE typically supports 2-4 CCs.

Why CA Matters for FWA Performance

Without CA, a CPE is limited to a single carrier’s bandwidth — typically 20MHz in low-band or 100MHz in mid-band. With 2CC aggregation, throughput can nearly double. For operators deploying FWA in spectrum-constrained markets, CA is essential for delivering competitive broadband speeds.

Honlly CPE with Advanced CA Support

Honlly Telecom’s 5G CPE portfolio features chipsets from Qualcomm (SDX62/SDX65) and MediaTek (T750/T830) supporting up to 4CC carrier aggregation. This enables operators to combine low-band for coverage with mid-band for capacity, delivering the best of both worlds.

Selecting the correct IP rating for outdoor CPE is critical for long-term reliability. This guide explains the differences and helps you choose the right protection level.

Understanding IP Ratings

The IP (Ingress Protection) rating uses two digits: the first (1-6) indicates dust protection, the second (1-9) indicates water protection. IP65 means dust-tight and protected against water jets. IP67 means dust-tight and protected against temporary immersion in water (up to 1 meter for 30 minutes).

When to Choose IP65

IP65 is sufficient for: wall-mounted CPE under eaves or canopies, pole-mounted units with rain shields, and deployments in arid or moderate climates. IP65 enclosures are typically lighter, less expensive, and offer better thermal dissipation. Honlly’s HL-880Q and HL-860U ODUs use IP65-rated ABS enclosures optimized for weight and cost.

When IP67 Is Necessary

IP67 is recommended for: direct-exposure pole-top installations, flood-prone areas, coastal deployments with salt spray, and industrial environments with washdown requirements. The improved sealing adds approximately 15-20% to the enclosure cost but significantly reduces field failure rates in harsh conditions.

Expert tips for installing 5G outdoor CPE (ODU) for optimal performance.

Antenna Alignment

Proper antenna alignment is critical. Use the CPE’s built-in signal strength indicator or a spectrum analyzer to find the optimal direction toward the cell tower. Even a 5-degree misalignment can reduce signal strength by 3-6 dB.

Weatherproofing

Ensure IP65-rated enclosures are properly sealed. Use weatherproof RJ45 connectors and gel-filled cable glands. Apply dielectric grease to all outdoor connections to prevent corrosion.

PoE Considerations

For PoE-powered ODUs, use Cat6 or better cable rated for outdoor use. Maximum cable length is 100 meters. Install a PoE surge protector at the building entry point to protect against lightning strikes.

Interference Mitigation

Avoid mounting near other radio equipment, metal surfaces, or power lines. Maintain at least 1 meter separation from other antennas.