Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2005-11-08
2005-11-08
Young, W. R. (Department: 2687)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S436000
Reexamination Certificate
active
06963745
ABSTRACT:
An inter system handovers in a mobile telecommunication system is performed when a dual mode user equipment (UE) covered by both GSM/GPRS network and UMTS network connects a dedicated channel and sets up a call in a BSS region where the GSM/GPRS provides coverage, and then moves to a UTRAN (UMTS Terrestrial Radio Access Network) where the UMTS provides coverage, wherein the method includes the steps of: if the dual mode UE receives an inter system handover command, i.e. from the BSS to the UTRAN, requesting GSM/GPRS data link layer to suspend a GSM/GPRS data link by a sublayer RR of GSM/GPRS network layer in the UE, requesting a GSM/GPRS physical layer to release a physical channel of the GSM/GPRS, and sending the inter system handover command to the UTRAN for authorizing a sublayer RRC of UMTS network layer in the UE to continue a call; requesting, at the RRC in the UE, a UMTS physical channel to be configured as a UMTS physical channel, and monitoring if the UMTS physical layer succeeds to have the configuration of the UMTS physical channel as requested; if the UMTS physical layer succeeds to have the configuration of the UMTS physical channel, requesting, at the RRC in the UE, a UMTS data link layer to configure a UMTS data link, and conveying information to the UTRAN through a UMTS channel that the handover between systems from the BSS to the UTRAN has been successfully performed; and sending, at the RRC, a GSM/GPRS resource release message to RR/GRR, thereby resetting the GSM/GPRS physical layer and the GSM/GPRS data link layer.
REFERENCES:
patent: 6377804 (2002-04-01), Lintulampi
patent: 6466556 (2002-10-01), Boudreaux
patent: 6501953 (2002-12-01), Braun et al.
patent: 6549779 (2003-04-01), Muller et al.
patent: 6643513 (2003-11-01), Timonen et al.
patent: 6671507 (2003-12-01), Vinck
patent: 6725039 (2004-04-01), Parmar et al.
patent: 6778959 (2004-08-01), Wu et al.
patent: 6782274 (2004-08-01), Park et al.
patent: 2003/0114158 (2003-06-01), Soderbacka et al.
patent: 2003/0119550 (2003-06-01), Rinne et al.
patent: 2003/0207688 (2003-11-01), Nikkelen
patent: 2004/0029587 (2004-02-01), Hulkkonen et al.
patent: WO 2085060 (2002-10-01), None
Rao Mohan
Singh Arnresh
Vandanapu Rajesh
Yi Kyu-Hwan
Dilworth & Barrese LLP
Samsung Electronics Co,. Ltd.
Santiago-Cordero M.
Young W. R.
LandOfFree
Method for performing inter system handovers in mobile... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for performing inter system handovers in mobile..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for performing inter system handovers in mobile... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3464356