公开(公告)号：US20210084529A1

公开(公告)日：2021-03-18

申请号：US16961452

申请日：2019-01-11

Applicant: SHARP KABUSHIKI KAISHA ,  FG Innovation Company Limited

Inventor： SHUICHIRO CHIBA ,  MASAFUMI ARAMOTO ,  TSUYOSHI TAKAKURA

IPC: H04W28/02 ,  H04W76/12

Abstract: In a case that a network (NW) applies a plurality of congestion controls, various kinds of congestion control identification information along with a back-off timer (Session Management (SM) timer) are notified such that a terminal apparatus (UE) can apply a congestion control expected by the NW. Alternatively, in a case that the UE receives an NW-initiated SM request with the back-off timer activated, the UE is allowed to identify an SM timer intended by the NW-initiated SM request. Alternatively, in a case that the UE receives the NW-initiated SM request with the back-off timer activated, the UE is allowed to modify the association of the activated back-off timer and the congestion control to be applied. Thus, a communication control method for the terminal to apply the congestion control expected by the NW in the congestion controls applied by the NW in 5G congestion control that applies a plurality of congestion controls is provided.

公开(公告)号：US20200336935A1

公开(公告)日：2020-10-22

申请号：US16765413

申请日：2018-11-20

Applicant: SHARP KABUSHIKI KAISHA ,  FG Innovation Company Limited

Inventor： TSUYOSHI TAKAKURA ,  MASAFUMI ARAMOTO ,  SHUICHIRO CHIBA

IPC: H04W28/02 ,  H04W48/06 ,  H04W48/18 ,  H04W76/18

Abstract: A notification is made of information in one PDU session establishment procedure to a terminal apparatus, the information being associated with information for identifying one NW slice that is a target of congestion control and the information for identifying another NW slice associated, to prevent a PDU session establishment procedure using information for identifying multiple NW slices at a time. As a method for interpreting the information for identifying the other NW slice associated, two implementation schemes are defined that use explicit notifications from a network and rules configured for the terminal apparatus. In a case that NW slice based congestion control is applied, information for identifying the NW slice to which establishment of a PDU session is allowed is notified as an exception. In a case that the terminal apparatus notified of a DCN ID during the 5GS connection moves to the EPS after application of 5GS congestion control, connection to the DCN ID that provides the same service level as the NW slice of the target of congestion control is also prevented. This provides a communication control method for implementing a management processing such as 5G congestion control initiated by a terminal apparatus or a network.