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Method for detecting coverage loss in broadband wireless access system

一种接入系统、宽带无线的技术，应用在识别移动台与基站之间的连接状态,快速执行网络再进入领域，能够解决没有得到明确的限定、没有提供SBS判断MS覆盖、失去存在或不存在等问题

Inactive Publication Date: 2012-07-04
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the behavior between MS and SBS is still not clearly defined
In addition, the general or conventional technology does not provide a method that allows the SBS to judge the existence or non-existence of coverage loss of the MS

Method used

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  • Method for detecting coverage loss in broadband wireless access system
  • Method for detecting coverage loss in broadband wireless access system
  • Method for detecting coverage loss in broadband wireless access system

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0077] According to an embodiment of the present invention, a method for detecting coverage loss to activate ABS will be described in detail below.

[0078] figure 1 is a conceptual diagram illustrating an exemplary method of detecting coverage loss according to an embodiment of the present invention.

[0079] refer to figure 1, in step S101, the AMS and the ABS can complete the network re-entry process of the AMS by exchanging AAI_REQ-REQ / AAI_REQ-RSP messages, so that the AMS can start operating the active AMS timer (active_ABS_timer), and the ABS can start operating for the corresponding AMS The active ABS timer (active_ABS_timer).

[0080] In this case, a Context Retention Identifier (CRID) may be allocated to the AMS through an AAI Registration Response (AAI_REG-RSP) message. The CRID may be adapted to identify the corresponding AMS at the entity maintaining the ABS's context information (eg Authenticator ASN-GW) or on the network. In addition, the CRID can also be use...

no. 2 approach

[0100] According to another embodiment of the present invention, a coverage loss detection method initiated by an AMS is provided.

[0101] Figure 5 is a conceptual diagram illustrating a method for detecting coverage loss by an AMS according to another embodiment of the present invention.

[0102] refer to Figure 5 , in step S501, the AMS and the ABS can complete the network entry process of the AMS by exchanging AAI_REG-REQ / AAI_REG-RSP messages with each other, so that the AMS can start operating the active AMS timer (active_AMS_timer), and the ABS can start operating the active ABS timer timer (active_ABS_timer).

[0103] In this case, a Context Retention ID (CRID) may be allocated to the AMS through the AAI_REG-RSP message.

[0104] In step S502, the AMS may send an AAI_RNG-REQ message to the serving ABS to determine whether the AMS is in a coverage loss state.

[0105] In step S503, the ABS that has received the AAI_RNG-REQ message updates the active ABS timer (acti...

no. 3 approach

[0109] According to yet another embodiment of the present invention, a method for releasing context information of an AMS without using a resource holding timer is provided.

[0110] will be referred to below Figure 6 Describe the operation of the ABS.

[0111] Figure 6 It is a conceptual diagram illustrating a method for releasing AMS context information of an Advanced Base Station (ABS) according to still another embodiment of the present invention.

[0112] refer to Figure 6 , in step S601, the AMS and the ABS can complete the network re-entry process of the AMS by exchanging AAI_REG-REQ / AAI_REG-RSP messages, so that the AMS can start operating the active AMS timer (active_AMS_timer), and the ABS can start operating for the corresponding AMS The active ABS timer (active_ABS_timer).

[0113] In this case, a Context Retention ID (CRID) may be allocated to the AMS through the AAI_REG-RSP message.

[0114] If the active ABS timer (active_ABS_timer) at the ABS for the co...

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Abstract

A method for detecting coverage loss in a broadband wireless access system is disclosed, which recognizes a connection state between a mobile station (MS) and a base station (BS), and provides a method and apparatus for quickly performing network re-entry when the MS moves out of a coverage area of the BS. A method for allowing a base station to perform coverage loss detection of a mobile station in a broadband wireless access system includes unsolicitedly transmitting a first message wherein a bit for requesting ranging execution is set, to the mobile station, and upon receiving a second message for confirming the ranging from the mobile station prior to expiration of a first timer that begins to operate when the first message is transmitted, restarting operating a second timer established for the mobile station.

Description

technical field [0001] The present invention relates to a broadband wireless access system, and more particularly, to a method for identifying a connection state between a mobile station (MS) and a base station (BS), and a A method and apparatus for quickly performing network re-entry when the coverage area of ​​a (BS) is out. Background technique [0002] In a general mobile communication system, uplink (UL) data may not be accidentally received from a mobile station (MS) during a predetermined period of time, or data for a downlink ( DL) data feedback signal (ACK or NACK signal). [0003] In this case, the BS performs triggering on a resource reserve (retain) timer, and stores context information of the MS during the triggering time, so that the MS can easily perform network re-entry. The above methods are implicitly provided by general mobile communication systems. In practice, the exact time or reference when the MS moves outside the network area (ie, coverage area) i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W48/16H04W48/18
CPCH04W76/028H04W76/19H04W36/08H04W48/16H04W24/08
Inventor 李真金龙浩柳麒善
Owner LG ELECTRONICS INC
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