Practical IMT and EESS Spectrum Sharing in the 7 to 8 GHz Band 1
This paper discusses how to share radio frequencies between satellite measurements of sea temperatures and new mobile networks like 5G. It proposes a system that allows both to work together without interfering with each other.
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- 1 New microwave bands (4.3 and 8.4 GHz ) have been proposed for P-SST measurement, as have onboard satellite signal processing methods to identify and remove radio frequency interference (RFI) .
- 2 To calculate the band availability, we assume that these radiometers run an open loop, and thus geofencing is done at the scan-line rather than pixel level.
- 3 Putting gNBs (base stations) to sleep is a well-studied and common practice that RGSS could leverage to remove subscriber impact during the (21 second) dark-time window of the early morning traversal.
- 4 Both DAPs and L1/L2 triggered mobility were designed to reduce the failure rate and the latency of legacy intercell handoff procedures .
Introduction
The “7 GHz” band (7.125 -8.4 GHz) has been referred to as the ‘Golden Band of [5 and ] 6G.” It is the largest contiguous block of potentially available mid-band spectrum, and has similar coverage properties to 3.5GHz, enabling 7 GHz networks to reuse the footprint of base stations deployed for 3.5GHz thus expediting rapid deployment to meet the growing demand for wideband services . These evaluations will lead to.
Passive Sea Surface Temperature (P-SST) measurements provide important data for weather forecasting, climate modeling, coastal disaster prevention, oceanographic research, and “broad use in understanding changes to the marine and ecological environment” .
Unfortunately, P-SST measurements by Earth Observation Satellites (EOS) at 6.925 and 7.3 GHz (the most important P-SST measurement bands because they provide good temperature sensitivity below 10 °C) are not protected applications.
A spectrum sharing solution is required to protect P-SST measurements because the frequencies are fixed by molecular physics and cannot be moved.
Methodology
a Real-Time Geospatial Spectrum Sharing (RGSS) system is a practical method to prevent interference with passive sea surface temperature measurements while simultaneously allowing 5G/6G networks access to the same spectrum greater than 99.9% of the time.
Study Design
Results & Findings
The 7 GHz band is being evaluated as part of the US National Spectrum Strategy and by many ITU member states to understand the impact on incumbent applications -or, in some cases, the need to consolidate applications and/or move them to other frequencies. The result of this process will lead to a heavily utilized, globally harmonized (i.e. with economies of scale) band that will shape the spectrum landscape for a.
- The 7 GHz band is being evaluated as part of the US National Spectrum Strategy and by many ITU member states to understand the impact on.
- The result of this process will lead to a heavily utilized, globally harmonized (i.e. with economies of scale) band that will shape the spectrum landscape for.
- New microwave bands (4.3 and 8.4 GHz ) have been proposed for P-SST measurement, as have onboard satellite signal processing methods to identify and remove radio.
- This has significant advantages for both the wireless and the weather/climate communities.
- RGSS prevents interference to P-SST measurements while simultaneously making the entire measurement band available to IMT networks with less than 0.1% impact on network availability.
New microwave bands (4.3 and 8.4 GHz ) have been proposed for P-SST measurement, as have onboard satellite signal processing methods to identify and remove radio frequency interference (RFI) .
To calculate the band availability, we assume that these radiometers run an open loop, and thus geofencing is done at the scan-line rather than pixel level.
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Practical Applications
While it is outside the main scope of this paper, it is worth noting that RGSS could also be applied to earth-to-satellite transmissions and point-to-point microwave links within the 6.925 P-SST GHz band. For IP-based layer 3 links, congestion and routing protocols could potentially be used to mitigate data loss during dark-time windows.
In addition to these mechanisms, network implementation could leverage session based Class of Service (CoS) identification to distinguish besteffort data streams from ultra-reliable low latency applications and real-time applications.
A network implementation could also leverage WISP policies that sleep (idle) some base stations during periods of low traffic load (e.g., 1 AM to 5 AM local time).
Ii. Rgss Operation In The 7 Ghz Eos Band
RGSS is a geofencing methodology that pauses transmissions within the measurement footprint of radiometers, allowing for interference-free P-SST measurements. The system calculates geofenced pixel sizes to minimize RF leakage and requires data from multiple satellites for effective operation.
I. Introduction
The 7 GHz band is a crucial mid-band spectrum for wireless communications, evaluated under the US National Spectrum Strategy. P-SST measurements at 6.925 and 7.3 GHz are vital for various environmental applications but face interference from mobile networks. A spectrum sharing solution is necessary to protect these measurements.
Iii. Coastal Operation
P-SST measurements at 7.3 GHz are susceptible to interference from IMT transmissions near coastlines. The RGSS system can utilize existing exclusion zones to manage network elements and minimize interference, ensuring the integrity of P-SST data.
Limitations and Cautions
A useful limitation and caution is that this article summarizes the available paper text and extracted evidence; readers should consult the source paper before treating any interpretation as definitive.
The paper’s conclusions may depend on its source selection, definitions, assumptions, and the scope of its analysis, so follow-up reading is important.
Frequently Asked Questions
Measurements at 6.925 GHz are now often corrupted in some coastal regions due to mobile networks, satellite communications, or point-to-point microwave transmissions . A spectrum sharing solution is required to protect P-SST measurements because the frequencies are fixed by molecular physics and.
a Real-Time Geospatial Spectrum Sharing (RGSS) system is a practical method to prevent interference with passive sea surface temperature measurements while simultaneously allowing 5G/6G networks access to the same spectrum greater than 99.9% of the time.
New microwave bands (4.3 and 8.4 GHz ) have been proposed for P-SST measurement, as have onboard satellite signal processing methods to identify and remove radio frequency interference (RFI) . To calculate the band availability, we assume that these radiometers run an.
While it is outside the main scope of this paper, it is worth noting that RGSS could also be applied to earth-to-satellite transmissions and point-to-point microwave links within the 6.925 P-SST GHz band. Moving traffic during the mid day dark-time traversal might.
A spectrum sharing solution is required to protect P-SST measurements because the frequencies are fixed by molecular physics and cannot be moved.
This paper discusses how to share radio frequencies between satellite measurements of sea temperatures and new mobile networks like 5G. It proposes a system that allows both to work together without interfering with each other.