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Mobile switching node and mobility management node to page terminal device

專利號
US11445474B2
公開日期
2022-09-13
申請人
Telefonaktiebolaget LM Ericsson (publ)（SE Stockholm）
發(fā)明人
Lei Xia; Zhiwei Qu
IPC分類
H04W68/02; H04W8/08
技術(shù)領(lǐng)域
ue,circuitry,network,node,or,may,in,wd,device,host
地域： Stockholm

摘要

The present disclosure relates to a mobile switching node and a mobility management node to page a terminal device. The present disclosure may provide a method for a mobile switching node to page a terminal device. The method includes: storing (S201) an indication of whether a terminal device supports a circuit switching call function; receiving (S202) a request to implement the circuit switching call function, in regard to a subscriber number corresponding to the terminal device; and sending (S203), to a mobility management node, a circuit switching paging request for the terminal device, in response to that the indication shows the terminal device supports the circuit switching call function.

說明書

In step S302, as the same as shown in FIG. 3, MME 102 send, to MSC 101, an indication of whether UE 103 supports a circuit switching call function. MME 102 fills the new IE ‘CS Domain Capability’ with “SMS only” or “CSFB and SMS” in Location Update Request to MSC 101, and it will tell MSC 101 whether the UE 103 supports MT CS call or not.

In step S402, MSC 101 sends Location Update Accept to MME 102. In step S403, MME 102 sends Combined Attach/TAU Accept to UE 103, including an additional update result showing whether ‘SMS only’ or not.

After sending Combined Attach/TAU Accept to UE, the combined registration is finished. Later, when MSC 101 receiving a MT CS call for this UE 103's MSISDN, it will determine whether to send CS paging to this UE 103 or select another one which has the same MSISDN and CSFB capability to send CS paging.

FIG. 5 is a table showing IEs in a location-update-request in accordance with embodiments of the present disclosure.

權(quán)利要求

1
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