17920225. RADIO ACCESS NETWORK (RAN) ARCHITECTURE simplified abstract (Telefonaktiebolaget LM Ericsson (publ))

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RADIO ACCESS NETWORK (RAN) ARCHITECTURE

Organization Name

Telefonaktiebolaget LM Ericsson (publ)

Inventor(s)

Wubin Li of Kirkland, Quebec (CA)

Amine Boukhtouta of Laval, Quebec (CA)

Daniel Migault of Montreal, Quebec (CA)

Stere Preda of Longueuil, Quebec (CA)

RADIO ACCESS NETWORK (RAN) ARCHITECTURE - A simplified explanation of the abstract

This abstract first appeared for US patent application 17920225 titled 'RADIO ACCESS NETWORK (RAN) ARCHITECTURE

Simplified Explanation

The abstract describes a method for steering a packet transmitted by a User Equipment (UE) in a network. The method involves receiving a first packet that encapsulates the original packet and extracting networking information from it. A Service Function Chaining (SFC) header is generated, which includes a Service Path Identifier (SPI) and metadata containing the extracted networking information. A second packet is then created by combining the SFC header and the original packet. This second packet is provided to a Service Function Forwarder (SFF) that selects a service path based on the SPI in the SFC header and forwards the packet accordingly.

  • The method involves receiving a packet and extracting networking information from it.
  • A Service Function Chaining (SFC) header is generated, which includes a Service Path Identifier (SPI) and metadata.
  • The original packet is combined with the SFC header to create a second packet.
  • The second packet is provided to a Service Function Forwarder (SFF) for further processing and forwarding.

Potential Applications

  • This method can be applied in network architectures that use Service Function Chaining (SFC) to steer packets through specific service paths.
  • It can be used in software-defined networks (SDNs) to enable efficient and flexible packet steering based on specific networking information.

Problems Solved

  • The method solves the problem of efficiently steering packets through specific service paths in a network.
  • It addresses the challenge of extracting and preserving networking information from encapsulated packets.

Benefits

  • The method allows for efficient packet steering based on specific networking information, enabling better control and management of network traffic.
  • It provides flexibility in selecting service paths based on the Service Path Identifier (SPI) in the SFC header.
  • By preserving networking information in the metadata of the SFC header, it ensures that relevant information is retained throughout the packet processing and forwarding process.


Original Abstract Submitted

A method for steering an original packet transmitted by a UE. The method includes receiving a first packet, wherein the first packet encapsulates the original packet. The method also includes extracting networking information (e.g., IP source, IP destination, tunnel identifier) from the first packet. The method also includes generating an SFC header (e.g., an NSH header), wherein the SFC header comprises: i) an SPI that identifies a service path and ii) metadata, wherein the metadata comprises the networking information extracted from the first packet. The method also includes generating a second packet comprising the SFC header and the original packet. The method also includes providing the second packet to an SFF that is configured to select a service path based on the SPI included in the SFC header of the second packet and forward the second packet based on the selected service path.

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