Understanding Satellite Store and Forward Monitoring Lists
Explore the concept of Satellite Store and Forward Monitoring Lists, how they are utilized in telecommunication networks, and the implications for user equipment. Learn about the importance of these lists in satellite communication protocols.
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Presentation Transcript
KI#2: Store and Forward SA2#166, Orlando, FL, USA
S&F Monitoring List The S&F Monitoring List is a list of satellites (identified by satellite ID(s)) for the same PLMN from which the UE is expected to get service when satellites are operating in S&F mode. The Satellite IDs are based on the SIB information broadcast by eNB. The S&F Monitoring List can be sent by the MME to the UE in a NAS procedure and be updated in subsequent NAS procedures. If a S&F Monitoring List is not provided by the MME, the UE assumes that there is no restrictions in using any of the satellites operating in S&F mode for the same PLMN. If a S&F Monitoring List is provided by the MME to the UE in: NAS Accept messages: The UE shall use the list NAS Reject messages with S&F cause: The UE shall use the list Detach Request: The UE may use the list
S&F Monitoring List The S&F Monitoring List is a list of satellites (identified by satellite ID(s)) for the same PLMN from which the UE is expected to get service when satellites are operating in S&F mode. The Satellite IDs are based on the SIB information broadcast by eNB. The S&F Monitoring List can be sent by the MME to the UE in a NAS procedure and be updated in subsequent NAS procedures. If a S&F Monitoring List is not provided by the MME, the UE assumes that there is no restrictions in using any of the satellites operating in S&F mode for the same PLMN.
S&F Monitoring List Proposal: If a S&F Monitoring List is provided by the MME to the UE in: NAS Accept messages: The UE may use the list within the registration area NAS Reject messages with S&F cause: The UE may use the list Condition: The EMM state of the UE is not changed when receiving reject + S&F cause ==> Agreed
KI#3: How to send a SIP re KI#3: How to send a SIP re- -INVITE INVITE msg msg for AGW relocation? for AGW relocation? Alt 1: P-CSCF sends the SIP re-INVITE message Y: N: Alt 2: IMS AS sends the SIP re-INVITE message Y: N: Support both alternatives Y: N:
