Method and apparatus for realizing access request in dual priority scene

An access request, multi-priority technology, applied in the field of communication, can solve the problems of the back-off timer cannot be prioritized, the back-off timer mechanism cannot meet the requirements, and the terminal cannot initiate a priority access request, etc., to meet the access requirements. effect of demand

Active Publication Date: 2013-10-30
DATANG MOBILE COMM EQUIP CO LTD
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  • 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 NAS signaling low priority or NAS signaling normal priority, only the terminal starts the corresponding backoff Timer, the terminal can neither initiate an access request with a priority of low access priority, nor can it initiate an access request with a priority of normal access priority
[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 apparatus for realizing access request in dual priority scene
  • Method and apparatus for realizing access request in dual priority scene
  • Method and apparatus for realizing access request in dual priority scene

Examples

Experimental program
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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 introduction of a dual priority device. The specific application scenario is that the UE is in an idle state and the backoff timer is not running. At this time, the priority is The upper layer application a of low priority 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 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 (service request) message, and sets the priority indication information as low priority in the service request 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 dual priority device is introduced. The specific application scenario is that the UE is in the connected state and has a session management backoff timer running (the value of its backoff time is T3396, hereinafter T3396 is used to refer to the session management backoff timer), and its backoff priority is low. At this time, application A and application A with different access priorities access the same APN3 B respectively requests 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] Ste...

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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 low access priority (low access priority) or normal access priority (normal access priority). A terminal configured as NAS signaling low priority can only initiate an access request with 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 levels 11-15), the terminal cannot initiat...

Claims

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Application Information

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