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5G NR Cell Global Identity (NCGI) Planning and Calculations

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The 5G New Radio (NR) Cell Global Identity (NCGI) is a unique identifier assigned to each cell in a 5G network. It consists of two components: the PLMN-Id (Public Land Mobile Network Identity) and the NCell-Id (NR Cell Identity). The PLMN-Id identifies the Public Land Mobile Network, which corresponds to the mobile operator, and the NCell-Id identifies the specific cell within that network.

Here's a technical explanation of the planning and calculations involved in 5G NR Cell Global Identity:

  1. PLMN-Id (Public Land Mobile Network Identity):For example, if the MCC is 001 (United States) and the MNC is 01, the PLMN-Id would be 00101.
    • The PLMN-Id is composed of the MCC (Mobile Country Code) and MNC (Mobile Network Code).
    • MCC is a three-digit code that uniquely identifies a country in the international mobile numbering plan.
    • MNC is a two- or three-digit code that identifies a specific mobile network within a country.
  2. NCell-Id (NR Cell Identity):The NCell-Id is typically assigned by the network planner during the cell planning phase, and it must be unique within the PLMN.
    • The NCell-Id is a unique identifier for each cell within a network.
    • It is composed of multiple fields, including NR Cell Identity, NCGI field length, and NR Cell Identity Value.
    • NR Cell Identity is a 36-bit value that uniquely identifies a cell within the PLMN.
    • The NCGI field length indicates the length of the NCell-Id.
  3. NCGI Planning:
    • During the planning phase, the network planner determines the geographical locations where cells will be deployed to provide optimal coverage and capacity.
    • The planner assigns unique NCell-Ids to each cell within the PLMN to avoid conflicts and ensure the uniqueness of the NCGI.
    • Factors such as cell density, user density, and expected data traffic are considered during the planning process.
  4. Calculations:
    • The actual calculations for NCGI planning involve generating unique NCell-Ids based on the planned cell locations.
    • The planner may use tools and algorithms that take into account factors like interference, handover scenarios, and overall network performance.
    • The NCGI calculations may also involve coordination with neighboring cells to minimize interference and optimize the use of available frequency resources.

The 5G NR Cell Global Identity planning and calculations involve assigning unique identifiers to each cell within a 5G network. This process considers factors such as geographical location, expected traffic, and interference to optimize the overall performance of the network. The PLMN-Id and NCell-Id together form the NCGI, ensuring the global uniqueness of cell identities within the 5G network.