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5G Indication : upperLayerIndication

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5G networks, communication between different layers of the protocol stack is essential for the proper functioning of the network. The protocol stack is divided into layers, and each layer has specific responsibilities and functions. The communication between these layers often involves the exchange of indications, messages, or signals.

Here's a brief overview of the key layers in the 5G protocol stack:

  1. Physical Layer (Layer 1): This layer is responsible for the transmission and reception of raw data bits over the physical medium, such as radio waves in wireless communication.
  2. Data Link Layer (Layer 2): This layer is divided into two sub-layers - Logical Link Control (LLC) and Medium Access Control (MAC). The MAC layer is responsible for channel access and management.
  3. Network Layer (Layer 3): This layer is responsible for routing packets between different nodes in the network. In the case of 5G, it includes the IP (Internet Protocol) layer.
  4. Transport Layer (Layer 4): This layer ensures end-to-end communication, reliability, and flow control. The Transmission Control Protocol (TCP) and User Datagram Protocol (UDP) are common transport layer protocols.
  5. Session Layer, Presentation Layer, and Application Layer (Layers 5-7): These layers are responsible for managing communication sessions, data presentation, and application-level protocols.