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User equipment, control apparatus, and communication control method

專利號
US11612004B2
公開日期
2023-03-21
申請人
SHARP KABUSHIKI KAISHA; FG Innovation Company Limited（JP Sakai HK Tuen Mun）
發(fā)明人
Yudai Kawasaki; Masafumi Aramoto
IPC分類
H04W76/10; H04W76/30; G16Y10/75; H04W60/00; H04W84/12
技術(shù)領(lǐng)域
ciot,ue,5gs,pdu,session,ladn,may,message,amf,procedure
地域： Sakai

摘要

Provided is a communication unit configured to allow a function for CIoT to be used even in a 5GS that supports a network-initiated configuration update procedure and a plurality of types of session and service continuities. Further provided is a communication unit configured to appropriately manage, by a user equipment, connection established between the user equipment and a network even in a case that a network-initiated change of a state of the user equipment has been performed. Thereby, the communication unit for implementing the function for CIoT in the 5GS and the communication unit for implementing a network-initiated procedure of changing the state of the user equipment are provided.

說明書

First, a case where the first condition determination is true will be disclosed. The AMF can execute a fourth condition determination in procedure (A) of FIG. 6. The fourth condition determination is performed to determine whether the AMF transmits and/or receives an SM message to and/or from an SMF.

The fourth condition determination may be executed based on whether the AMF has received an SM message. The fourth condition determination may be executed based on whether an SM message is included in a registration request message. For example, the fourth condition determination may be true in a case where the AMF has received the SM message and/or in a case where the SM message is included in the registration request message, and the fourth condition determination may be false in a case where the AMF has not received the SM message and/or in a case where the SM message is not included in the registration request message. It is noted that conditions for determining whether the fourth condition determination is true or false are not limited to the previously-disclosed conditions.

When the fourth condition is determined to be true, the AMF selects an SMF and transmits and/or receives an SM message to and/or from the selected SMF. When the fourth condition is determined to be false, the AMF does not select the SMF nor perform transmission and reception of the SM message (S806). In a case that the AMF receives an SM message indicating rejection from the SMF even in a case that the fourth condition determination is true, the AMF may stop procedure (A) in FIG. 6. The AMF may initiate procedure (B) of FIG. 6.

權(quán)利要求

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