Access transfer for a DRVCC mobile terminal
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 9, 2018
Issued Date -
N/A
app pub date -
Apr 12, 2013
filing date -
May 15, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Dual Radio Access Transfer of an IMS in an alerting phase for the Packet Switched to Circuit Switched direction includes initiating an IMS media session towards UE and, during a session alerting phase, making a determination that a DRVCC transfer is required from a PS to CS, access, sending a SIP message from the UE to a SCC-AS, over the PS access, informing the SCC-AS of the DRVCC transfer, and responding to receipt of the SIP message at the SCC-AS by sending a SIP INVITE from the SCC-AS towards MSC. The SIP INVITE includes an identity of the UE as a called party identity and the STN as the calling party identity. The Transfer includes sending from the MSC to the UE a CS Setup message, whereupon the MSC is placed in a state in which it expects a CS Answer from the UE.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2013 Application Filing Year
- H04L Class
- 23397 Applications Filed
- 19833 Patents Issued To-Date
- 84.77 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 2 Citation Count
- H04L Class
- 17.38 % this patent is cited more than
- 7 Age
Maintenance Fees
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|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jul 9, 2025 |
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