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System and method for communicating radio access technology characteristics

專利號(hào)
US11930412B2
公開日期
2024-03-12
申請(qǐng)人
Sony Group Corporation（JP Tokyo）
發(fā)明人
Lars Nord; Rickard Ljung; Daniel Lonnblad
IPC分類
H04W36/08; H04W36/22; H04W36/30; H04W68/00
技術(shù)領(lǐng)域
network,ue,ran,paging,wireless,rat,specified,cell,message,node
地域： Tokyo

摘要

A wireless communication network (102) can employ techniques for the network (102) to indicate specific radio access characteristics to be used by a user equipment (100) 5 when responding to a paging message. The network (102) can indicate a specific radio access technology (RAT) that the UE (100) should use when connecting to the network (102). In this manner, the UE (100) can initiate a connection using the desired RAT rather than first initiating a connection with an incorrect RAT and performing a handover or network reconfiguration.

說明書

RELATED APPLICATION DATA

This application claims the benefit of Swedish Patent Application No. 1930066-4 filed Feb. 18, 2019, the disclosure of which is incorporated herein by reference in its entirety.

TECHNICAL FIELD OF THE INVENTION

The technology of the present disclosure relates generally to cellular network operation and, more particularly, to a system and method for communicating radio access technology characteristics to a wireless communications device.

BACKGROUND

Network communications that have been developed as part of the Third Generation Partnership Project (3GPP) include a paging procedure implemented to either setup a voice call or a data connection. With the introduction of Internet of Things (IoT) technologies and thereby adding cellular IoT improvements in the network, further paging procedure functionality would be beneficial.

When a user equipment (UE) is in an idle mode, the UE is responsible for deciding which radio access to use for camping in a cell. In some situations, the network may need to perform a handover or reconfiguration to move the UE to a second RAT or change the radio characteristics after a connection is performed in an “incorrect” RAT or with “incorrect” RAT characteristics. This leads to problems and reduced performance since additional signaling is required between the UE and network and between network nodes such as RAN nodes and core network nodes.

SUMMARY

權(quán)利要求

1
What is claimed is:1. A method for initiating a connection to a target wireless communications network carried out by a wireless communications device comprising:camping in an idle mode or an inactive mode, on a first cell of a first wireless communications network;receiving a paging message containing specified network characteristics or an indication of specified network characteristics to be used by the wireless communications device in connecting to the target wireless communications network, wherein the specified network characteristics include a radio access technology (RAT);determining whether or not the wireless communications device can initiate a connection to the target wireless communications network on the first cell using the RAT included in the specified network characteristics;upon determining that the wireless communications device cannot initiate the connection to the target wireless communications network on the first cell using the RAT included in the specified network characteristics, performing a cell re-selection to a second cell to match the specified network characteristics; andinitiating a connection to the target wireless communications network using the specified network characteristics over the second cell of the target wireless communications network, based on the specified network characteristics, wherein the target wireless communications network is one of the first wireless communications network or a second wireless communications network.2. The method of claim 1, further comprising determining whether the wireless communications device can initiate a connection to the target wireless communications network on the first cell using the specified network characteristics, wherein initiating the connection to the target wireless communications network is based on the determination of whether the wireless communications device can initiate the connection on the first cell.3. The method of claim 1, wherein the paging message is received using a different RAT than the RAT included in the specified network characteristics.4. The method of claim 1, wherein the specified network characteristics include at least one of a target cell ID, a frequency band, a core network type or an indication of a portion of bandwidth within a network carrier of the target network wireless communication network.5. A wireless communications device comprising a wireless interface and a control circuit configured to:camp, in an idle mode or an inactive mode, on a first cell of a first wireless communications network;receive a paging message containing specified network characteristics or an indication of specified network characteristics to be used by the wireless communications device in connecting to the target wireless communications network, wherein the specified network characteristics include a radio access technology (RAT);determine whether or not the wireless communications device can initiate a connection to the target wireless communications network on the first cell using the RAT included in the specified network characteristics;upon determining that the wireless communications device cannot initiate the connection to the target wireless communications network on the first cell using the RAT included in the specified network characteristics, perform a cell re-selection to a second cell to match the specified network characteristics; andinitiate a connection to the target wireless communications network using the specified network characteristics over the second cell of the target wireless communications network, based on the specified network characteristics, wherein the target wireless communications network is one of the first wireless communications network or a second wireless communications network.
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