Session information query methods, network element and computer memory medium

A technology of session information and query method, which is applied in the direction of electrical components, wireless communication, network data management, etc., can solve the problems of complicated PCF addressing operation and high overhead, and achieve the goal of solving data inconsistency, simplifying operation, and simplifying network elements Effect

Active Publication Date: 2019-03-01
CHINA MOBILE COMM LTD RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] In view of this, the embodiment of the present invention expects to provide a session information query method, NEF and computer storage medium, which at least partially solve the above-mentioned problems of complicated and / or high overhead of PCF addressing operations

Method used

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  • Session information query methods, network element and computer memory medium
  • Session information query methods, network element and computer memory medium
  • Session information query methods, network element and computer memory medium

Examples

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example 1

[0237] This example provides a method for querying session information. Before addressing policy-controlled network elements, plan the IP address pool of the SMF and pre-configure the mapping relationship between the SMF and the IP address segment on the network elements with open functions, as shown in Figure 8 Specifically, it may include:

[0238] Step S1: Plan the IP address pool of the SMF, and preset the mapping relationship between the SMF and the IP address segment on the NEF.

[0239] Step S2: AF sends AF request to NEF;

[0240] Step S3: The NEF queries the mapping relationship between the SMF and the IP address segment to find the address of the SMF that manages the PDU session of the UE.

[0241] Step S4: The NEF initiates a PCF address query request to the SMF, carrying the IP address of the UE.

[0242] Step S5: The SMF queries the context of the UE according to the IP address of the UE, and obtains the address of the PCF bound to the UE;

[0243] Step S6: SM...

example 2

[0257] This example provides a method for querying session information. Before PCF addressing, plan the IP address pool of SMF and NRF pre-configures the mapping relationship between SMF and IP address segments, such as Figure 9 Specifically, it may include:

[0258] Step S11: Plan the IP address pool of the SMF, and preset the mapping relationship between the SMF and the IP address segment on the NRF.

[0259] Step S12: AF sends AF request to NEF.

[0260] Step S13: The NEF initiates a query request for the SMF address to the NRF, carrying the IP address of the UE: specifically, if there is no mapping relationship configured on the NEF and no PCF address, query the NRF to obtain the address of the SMF;

[0261] Step S14: NRF returns the address of SMF based on the mapping relationship;

[0262] Step S15: The NEF initiates a PCF address query request to the SMF, carrying the IP address of the UE,

[0263] Step S16: The SMF queries the UE context according to the IP address...

example 3

[0278] According to 23.501, in the roaming scenario, the SMF that performs session management and assigns the UE's IP address and the PCF with the PDU session can be in the same PLMN.

[0279] If the local breakout roaming scheme is adopted, the SMF that performs session management and assigns IP addresses and the PCF that has a PDN session is in the visited network (that is, the visited network), and the NEF address pre-configured by the AF is the visited network NEF, and the vSMF is queried through the visited network NEF.

[0280] If the home routed roaming scheme is adopted, the SMF that performs session management and assigns the IP address of the UE and the PCF that has a PDN session are in the home network (home network), and the NEF address pre-configured by the AF is the home network NEF, and the hSMF is queried through the home network NEF .

[0281] Because the NEF and SMF are also in the same PLMN, you can configure the mapping relationship between the SMF and the IP...

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Abstract

The embodiments of the invention provide session information query methods, network elements and a computer memory medium. A session information query method is applied to a network exposure function.The method comprises the steps of receiving an application service request which carries an Internet protocol (IP) address of user equipment (UE); querying identification information of a session management function according to the IP address of the UE, wherein the session management function carries out session management on the UE; sending a query request carrying the IP address of the UE to the corresponding session management function based on the identification information of the session management function; and receiving session information returned by the session management function based on the query request, wherein the session information at least comprises the identification information of a policy control function of the UE.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a session information query method, a network element and a computer storage medium. Background technique [0002] The policy and charging control (Policy and Charging Control, PCC) of the 4G network requires that the Gx interface session and the Rx interface session of the same user be bound on the same policy and charging rules function (Policy and ChargingRules Function, PCRF) . When deploying multiple PCRF entities, a routing agent node (DiameterRouting Agent, DRA) is required to implement session binding, and store the binding relationship between user code number, Internet Protocol (Internet Protocol, IP) address and PCRF address to form session binding information . [0003] Similar to the session binding requirements of the Gx / Rx interface of the 4G core network, the N7 and N5 (or Rx) interface signaling requirements of the same user's public data network (...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W8/26H04L29/08H04L29/06H04L29/12H04L12/24
CPCH04L41/0893H04L61/2503H04L61/2521H04L61/35H04L63/0236H04L67/14H04L67/146H04W8/26
Inventor 陈旭陈炜
Owner CHINA MOBILE COMM LTD RES INST
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