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Method and device for realizing access request in multi-priority scenario

An access request and multi-priority technology, which is applied in the communication field, can solve the problems that the backoff timer cannot be prioritized, the backoff timer mechanism cannot meet the requirements of dualprioritydevice, and the access request with the priority of normalaccesspriority cannot be initiated. The effect of access requirements

Active Publication Date: 2016-08-03
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, according to the existing protocol, the backoff timer cannot distinguish the priority of the terminal's access request, which leads to whether the terminal is configured as NASsignalinglowpriority or NASsignalingnormalpriority, only the terminal starts the corresponding backoff timer, and the terminal cannot Initiate an access request with a priority of lowaccesspriority, and cannot initiate an access request with a priority of normalaccesspriority
[0006] In summary, the backoff timer mechanism in existing standards cannot meet the requirements of dual priority device proposed by 3GPP

Method used

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  • Method and device for realizing access request in multi-priority scenario
  • Method and device for realizing access request in multi-priority scenario
  • Method and device for realizing access request in multi-priority scenario

Examples

Experimental program
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Effect test

Embodiment 1

[0055] as attached figure 2 As shown, the specific embodiment 1 provided by the embodiments of the present invention is as follows:

[0056] Step 201: The upper layer application of the UE triggers the NAS layer of the UE to initiate an access request to the network, and the access request is a mobility management request or a session management request.

[0057] Step 202: The NAS layer of the UE judges whether there is a relevant backoff timer running, if yes, execute step 203, otherwise, execute step 204.

[0058] Step 203: The NAS layer of the UE determines the priority restricted by the backoff timer according to the priority identifier (priority_for_timer) of the backoff timer, and judges whether the priority of the access request is higher than the priority restricted by the running backoff timer, if , execute step 204, otherwise, according to existing protocols, the NAS layer of the UE sends the access request to the network side after waiting for the backoff timer to...

Embodiment 2

[0063] as attached image 3 As shown, the specific embodiment 2 provided by the embodiment of the present invention is as follows:

[0064] This specific embodiment describes how to use the backoff timer implementation method for mobility congestion control at the NAS layer after the dualprioritydevice is introduced. The specific application scenario is that the UE is in the idle state and the backoff timer is not running. At this time, the priority is lowpriority The upper layer application a requests the NAS layer of the UE to establish a packet data network (PDN) connection for it.

[0065] Step 301: the upper-layer application a with a priority of low priority requests the NAS layer to establish a PDN connection for it.

[0066] Step 302: The NAS layer of the UE initiates a service request (servicerequest) message, and sets the priority indication information as lowpriority in the servicerequest message.

[0067] Step 303: the network is in a congested state, and the mob...

Embodiment 3

[0076] as attached Figure 4 As shown, the specific embodiment three provided by the embodiments of the present invention is as follows:

[0077] This specific embodiment describes how to use the backoff timer implementation method for session management congestion control based on the access point name (APN) after the dualprioritydevice is introduced. The specific application scenario is that the UE is in the connected state and there is a session management backoff timer running ( Its back-off time value is T3396, hereinafter T3396 is used to refer to the session management back-off timer), and its back-off priority is low. At this time, application A and application B with different access priorities connected to the same APN3 respectively Request the NAS layer of the UE to establish a PDN connection for it.

[0078] Step 401: The UE is in the connected state, and the session management backoff timer T3396 of the APN3 is running, and its backoff priority is low.

[0079] ...

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Abstract

The invention discloses a method and an apparatus for realizing an access request in a dual priority scene, so that in a network congestion scene, a terminal can deal with different access requests of applications having different priorities in different ways according to a retreat timer, and access demands of equipment having multiple priorities can be satisfied. The method comprises steps that a user terminal (UE) determines a priority limited by a retreat timer according to a priority identifier of the retreat timer when a retreat timer is running locally; and the UE compares a priority of the to-be-sent access request with the priority limited by the retreat timer, and if the priority of the to-be-sent access request is higher than the priority limited by the retreat timer, the UE sends the access request to a network side.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular to a method and device for realizing an access request in a multi-priority scenario. Background technique [0002] At present, the terminal can only use one access priority, that is, use a low access priority (low access priority) or a normal access priority (normal access priority). A terminal configured as NAS signaling low priority (NAS signaling low priority) can only initiate an access request with priority low access priority. According to the existing congestion control protocol, in order to solve the network congestion and overload that may be caused by the introduction of machine communication, the network introduces a backoff timer mechanism, that is, once the terminal starts the backoff timer, before the timer expires, except for emergency ( emergency) access requests and access requests with higher access levels (such as access requests with access ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W74/08
Inventor 康艳超
Owner DATANG MOBILE COMM EQUIP CO LTD