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Method and device for congestion control and user equipment

A user equipment, congestion control technology, applied in the field of communication, can solve the problem that UE cannot be informed in time

Active Publication Date: 2013-01-09
GLOBAL INNOVATION AGGREGATORS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention provides a congestion control method, which aims to solve the problem that in the existing method of controlling congestion through a backoff timer, during the running of the backoff timer, even if the congestion has been resolved, the UE cannot know in time

Method used

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  • Method and device for congestion control and user equipment
  • Method and device for congestion control and user equipment
  • Method and device for congestion control and user equipment

Examples

Experimental program
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Effect test

Embodiment 1

[0082] Such as figure 1 What is shown is a flow chart of the congestion control method provided by the first embodiment of the present invention. For ease of description, only the parts related to the embodiment of the present invention are shown.

[0083] 1. The core network determines that SM congestion or MM congestion has occurred.

[0084] In this embodiment of the present invention, SM congestion or MM congestion includes, but is not limited to: APN-based SM congestion, or APN-based MM congestion, or general NAS-level MM congestion. The core network includes one or more serving general packet radio service technical support nodes (Servicing GPRS Support Node, SGSN) and / or mobility management entities (Mobility Management Entity, MME).

[0085] 2. The UE initiates an SM request or MM request to the core network.

[0086] 3. The core network rejects the SM request or MM request initiated by the UE, and returns the backoff time.

[0087] In the embodiment of the present ...

Embodiment 2

[0103] Such as figure 2 Shown is a flow chart of the congestion control method provided by the second embodiment of the present invention, and for ease of description, only the parts related to the embodiment of the present invention are shown.

[0104] 1. The core network determines that SM congestion or MM congestion has occurred.

[0105] 2. The UE initiates an SM request or MM request to the core network.

[0106] 3. The core network rejects the SM request or MM request initiated by the UE, and returns the backoff time.

[0107] 4. The UE runs the backoff timer according to the backoff time.

[0108] In the embodiment of the present invention, if the core network returns a message rejecting the MM request, the reject message will not allocate a RAI or a TAI list (multiple TAIs) to the UE, and the UE should save the current RAI or TAI by itself. When running the back-off timer, the UE prohibits the SM or MM procedure initiated by itself, but does not prohibit the SM or ...

Embodiment 3

[0118] Such as image 3 Shown is a flow chart of the congestion control method provided by the third embodiment of the present invention, and for ease of description, only the parts related to the embodiment of the present invention are shown.

[0119] In the embodiment of the present invention, the core network includes multiple SGSNs or MMEs. Here, the UE moves from the first SGSN / MME to the second SGSN / MME as an example for illustration.

[0120] 1. The first SGSN / MME determines that SM congestion or MM congestion has occurred.

[0121] 2. The UE initiates an SM request or an MM request to the first SGSN / MME.

[0122] 3. The first SGSN / MME rejects the SM request or MM request initiated by the UE, and returns the fallback time and the RAI list or TAI list.

[0123] In the embodiment of the present invention, the RAI list indicates a service area of ​​an SGSN, and the TAI list indicates a service area of ​​an MME.

[0124] 4. The UE saves the RAI list or the TAI list, and ...

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Abstract

The invention is applicable to the communication field and provides a method and a device for congestion control and user equipment. The method comprises the steps that: the user equipment UE initiates a session management (SM) request or a mobility management (MM) request to a core network; the UE receives a rejection message, containing back-off time, sent by the core network due to SM congestion or MM congestion; and the UE runs a back-off timer according to the back-off time, monitors information of congestion release during the running of the back-off timer, and stops running the back-off timer when the information of congestion release is monitored. According to the invention, the UE monitors information of SM congestion release or MM congestion release during the running of the back-off timer so that the UE can timely acquire the information of network congestion release.

Description

technical field [0001] The invention belongs to the communication field, and in particular relates to a congestion control method, device and user equipment. Background technique [0002] Currently, congestion (also called overload) is a machine-to-machine problem that operators are most concerned about. Therefore, how to effectively control congestion becomes crucial. Today, after the congestion problem is standardized, three types of schemes are used to control congestion, namely: backoff timer, low priority indication, and extended access restriction. Among them, the way of controlling congestion by backoff timer is further divided into three mechanisms: Session Management (Session Management, SM) congestion control based on Access Point Name (Access Point Name, APN), mobility management (Mobility Management) based on APN , MM) congestion control and general non-access stratum (non-access stratum, NAS) level MM congestion control. [0003] Whether it is APN-based SM con...

Claims

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Application Information

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IPC IPC(8): H04L12/841H04L12/855H04L47/2466
CPCH04W74/08H04W28/02H04W74/00H04W28/0247H04L47/266
Inventor 龙水平李小娟
Owner GLOBAL INNOVATION AGGREGATORS LLC
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