Home / 5G / What is GSCN raster in 5G?

What is GSCN raster in 5G?

The GSCN (Global Synchronization Channel Number) raster in 5G is a concept related to the frequency planning and deployment of 5G networks. It defines a specific set of channel numbers for the Global Synchronization Channel, which is a crucial element in 5G New Radio (NR) networks. Understanding the GSCN raster is essential for network operators and engineers involved in the planning and optimization of 5G frequency bands.

Key aspects of GSCN raster in 5G include:

  1. Global Synchronization Channel (GSC):
    • The Global Synchronization Channel is a dedicated channel in the 5G NR system that plays a crucial role in network synchronization. It helps synchronize different base stations (gNBs) within a 5G network, ensuring coordinated operation and efficient utilization of radio resources.
  2. GSCN Values:
    • GSCN values are integer numbers assigned to the Global Synchronization Channel. These values are part of the GSCN raster and are used to specify the frequency location of the Global Synchronization Channel within the overall frequency band.
  3. Frequency Planning:
    • The GSCN raster is employed in the frequency planning process for 5G networks. It provides a standardized set of channel numbers for the Global Synchronization Channel, allowing for consistency and interoperability across different 5G deployments.
  4. Interoperability:
    • The use of a common GSCN raster ensures interoperability among 5G networks from different vendors and operators. Standardization in GSCN values facilitates the seamless coordination and handover of devices between different 5G cells.
  5. Carrier Frequency Calculation:
    • The GSCN values are used in the calculation of the carrier frequency for the Global Synchronization Channel. The carrier frequency is a crucial parameter in determining where the synchronization channel is positioned within the frequency spectrum.
  6. NRARFCN (NR Absolute Radio Frequency Channel Number):
    • GSCN values are related to NRARFCN, which represents the absolute radio frequency channel number in 5G NR. NRARFCN is calculated based on the GSCN values, and it is used to identify the carrier frequency for the synchronization channel.
  7. Deployment Considerations:
    • During the deployment of 5G networks, network operators adhere to the GSCN raster to allocate specific channel numbers for the Global Synchronization Channel. This careful planning ensures efficient synchronization and coordination among neighboring base stations.
  8. 3GPP Standardization:
    • The GSCN raster and its associated parameters are standardized by the 3rd Generation Partnership Project (3GPP), the organization responsible for defining global standards for mobile communication technologies. This standardization ensures consistency and compatibility across different 5G networks worldwide.

In summary, the GSCN raster in 5G is a standardized set of channel numbers for the Global Synchronization Channel, crucial for network synchronization and coordination. It facilitates interoperability, efficient frequency planning, and consistent deployment of 5G networks, contributing to the reliable and optimized operation of 5G NR systems.

Recent Updates