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Method and apparatus for traffic routing and path optimization for peer-to-peer communications

A path and communication network technology, applied in the field of communication network, can solve problems such as low efficiency and low efficiency of UP path

Active Publication Date: 2020-07-03
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The user plane (UP) of these two PDU sessions is established and maintained independently, which may lead to inefficiencies such as UP path inefficiency

Method used

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  • Method and apparatus for traffic routing and path optimization for peer-to-peer communications
  • Method and apparatus for traffic routing and path optimization for peer-to-peer communications
  • Method and apparatus for traffic routing and path optimization for peer-to-peer communications

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Embodiment Construction

[0079] Embodiments of the present invention provide a method and device for routing peer-to-peer (P2P) communication services influenced by application functions in such a network. P2P traffic may be routed through a bridge between the user plane or associated RAN of a first peer and the user plane or associated RAN of a second peer, thereby shortening the P2P traffic path relative to the default case, which Cases such as routing P2P traffic through a common application server, or anchor UPFs routing IP or Ethernet PDUs locally to target peer PDU sessions by the anchor UPF. In some embodiments, two or more anchor UPFs may be replaced by a single anchor UPF for multiple sessions. The method and apparatus may involve the operation of one or more functions of a communications network, such as functions in a core network of a 5G network. Such functions may include, for example, one or more Policy Control Functions (PCFs), one or more Session Management Functions (SMFs) associated...

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Abstract

Application Function (AF) influenced routing for peer-to-peer (P2P) communications is provided. Core network elements correlate PDU sessions and optimize the UP path for peer-to-peer traffic. UP selection, reselection, configuration or reconfiguration can be performed in support of P2P traffic routing. P2P traffic between a pair of UEs is routed or rerouted through a bridge. The bridge may be established between the first UP and the second UP, and / or between associated RAN nodes. One or more application functions can be included along the bridge path. A policy control function (PCF) directs underlying resources to route P2P traffic via the bridge, for example in response to a trigger from the AF. A session management function (SMF) directs underlying resources to configure or reconfigure user plane data paths to route P2P traffic via the bridge. First and second SMFs of the first and second UPs can cooperate to establish the desired traffic routing. One or more UPFs can be configured to support P2P traffic detection.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to U.S. Nonprovisional Patent Application No. 16 / 185,795, filed November 9, 2018, which claims priority to U.S. Nonprovisional Patent Application No. 62 / 588,197, filed November 17, 2017 , and the priority of U.S. Provisional Patent Application No. 62 / 632,898, filed February 20, 2018, the entire contents of which are hereby incorporated by reference. technical field [0003] The present invention relates to such as the fifth generation (5 th generation, 5G) network communication network, and in particular to methods and devices for service routing and path optimization for peer-to-peer communication in such a network in response to impacts from application functions (application function, AF). Background technique [0004] Peer-to-peer communication refers to communication between two terminal devices (referred to as UE-1 and UE-2 herein) such as two user equipments (user equipment, UE...

Claims

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Application Information

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IPC IPC(8): H04W4/70H04W8/14H04W40/02H04L47/20
CPCH04L45/306H04L12/189H04W72/56H04L47/20H04L67/104H04W88/02
Inventor 李顼恩科·敦·道张航
Owner HUAWEI TECH CO LTD
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