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Indicator-controlled utilization of outdated configuration defined in access information table for access network

A technology of access information and indicators, which is applied in the direction of data exchange, access restriction, network topology, etc. through path configuration, and can solve the problems of network side misconfiguration, impact, and access attempt failure.

Active Publication Date: 2018-07-31
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this involves the risk that the UE attempts to access the cellular network based on an inappropriate configuration, which may result in a failure of the access attempt, or even cause a network-side misconfiguration that has a negative effect on the cellular network also with respect to other UEs. The operation of the network has an impact

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  • Indicator-controlled utilization of outdated configuration defined in access information table for access network
  • Indicator-controlled utilization of outdated configuration defined in access information table for access network
  • Indicator-controlled utilization of outdated configuration defined in access information table for access network

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Embodiment Construction

[0026] Hereinafter, concepts according to exemplary embodiments of the present invention will be explained in more detail with reference to the accompanying drawings. The illustrated embodiments relate to controlling access of a communication device (hereinafter, also referred to as UE) to a cellular network. In the illustrated example, it is assumed that the UE is provided with information utilized by the UE to access the cellular network in a hierarchical manner. Specifically, the AIT is transmitted to the UE by some access nodes of the cellular network. The AIT includes entries each identified by an identifier, and each of such entries includes one or more configurations that can be selected by the UE to be applied when accessing the cellular network (in particular, a certain cell of the cellular network). parameters. The identifier may correspond to a system signature sequence as transmitted by an access node of the cellular network. The access nodes each transmit such ...

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Abstract

A radio device (10) receives an access information table (402) from the cellular network. The access information table (402) comprises parameters of a plurality of configurations for controlling access of the radio device (10) to the cellular network. Further, the radio device (10) receives an identifier (403) from the cellular network. Depending on the identifier (402), the radio device selects one of the configurations from the access information table (402). In response to determining that at least one of the received access information table (402) and the received identifier (403) is outdated, the radio device (10) determines, depending on an indicator associated with the selected configuration, whether to perform an access attempt (409) to the cellular network on the basis of the selected configuration.

Description

technical field [0001] The invention relates to a method for controlling access to a cellular network and to a corresponding arrangement. Background technique [0002] When a UE (User Equipment) initially accesses a cellular network in a cellular network based on LTE (Long Term Evolution) Radio Access Technology (RAT) specified by 3GPP (Third Generation Partnership Project), the UE needs to collect Information called System Information (SI). This is typically done via the broadcast of certain information in each cell. The broadcasted information includes Primary Synchronization Signal (PSS) and Secondary Synchronization Signal (SSS), which can be used by UEs to obtain frequency and time synchronization. These sequences also encode the Physical Cell Identity (PCI). After physical layer synchronization and PCI detection, the UE can use the continuously broadcasted Cell-Specific Reference Signal (C-RS) to perform channel estimation and thus finally decode the SI. The PSS an...

Claims

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Application Information

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IPC IPC(8): H04W48/16H04W48/02H04W48/12
CPCH04L41/0816H04W48/16H04W74/002H04L12/2856H04L41/0866H04W48/10H04W68/02H04W84/042
Inventor I.L.J.达西尔瓦G.米尔德J.L.普拉达斯J.鲁内
Owner TELEFON AB LM ERICSSON (PUBL)