Cisco Technology, Inc.

Pravin Appaji Ajagekar

Ravi Shankar Mantha

Suyog Subhash Belsare

Aeneas Sean Dodd-Noble

Ravi Shekhar

Nithin Chitta

Raghavendra Vidyashankar Suryanarayanarao

Tomonobu Okada

The present disclosure is directed to systems and techniques for providing signaling optimization for Modify Access Bearer Request (MABR) messaging in a network. In one example, the systems and techniques can include negotiating, using a Mobility Management Engine (MME), a MABR support for the MME to include subscriber information in one or more MABR messages transmitted by the MME. The MME can determine an updated subscriber information, wherein the updated subscriber information is determined based on a User Equipment (UE) location change. Based at least in part on the negotiated MABR support, and in response to the MME determining the updated subscriber information, the MME can transmit a single MABR to a Serving Gateway (SGW), wherein the single MABR message includes the updated subscriber information.

Modify access bearer request (MABR) messaging with reduced signaling

The present disclosure is directed to systems and techniques for improved signaling of subscriber information and updates thereto for one or more location-based user plane services. In one examples, the systems and techniques can include determining the existence of a converged User Plane Function (UPF) comprising a Serving Gateway User Plane (SGW-U) session and a Packet Data Network (PDN) Gateway User Plane (PGW-U) session. In response to determining the existence of the converged UPF, User Equipment (UE) information can be transmitted from a Serving Gateway Control Plane (SGW-C) session to the SGW-U session of the converged UPF. The UE information received at the SGW-U session can be shared to the PGW-U session of the converged UPF, wherein the PGW-U session receives the UE information without communicating with a PDN Gateway Control Plane (PGW-C) session.

Signaling optimization for location-based user plane services

A network node selectively encrypts messages between a user plane node and a control plane node in a network system. The user plane node and the control plane node negotiate a connection and indicate an encryption level for the connection. The encryption level is selected from an Information Element (IE) level, a message level, or a feature level. The user plane node and the control plane node selectively encrypt at least a portion of the messages between the user plane node and the control plane node based on the encryption level for the connection.

Securing control/user plane traffic

Presented herein are techniques to facilitate dynamic negotiation and compression of Packet Forwarding Control Protocol (PFCP) messages in a mobile networking environment. In one example, a method includes identifying, by a function, a negotiated compression algorithm to utilize for compressing one or more Packet Forwarding Control Protocol (PFCP) messages; determining whether a payload for a particular PFCP message is to be compressed based on at least one of system resources of the function and a size of the payload; based on determining that the payload is to be compressed, compressing the payload utilizing the negotiated compression algorithm to generate a compressed PFCP message; and setting a compression indication in a header of the compressed PFCP message.

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Maharashtra, India

Pravin Appaji Ajagekar