Generic service request procedure in a multimode system
a multi-mode system and generic service technology, applied in the field of telecommunications, can solve the problems of inapplicability to solve problems, inability to easily arrange mobile station awareness of the services available from different plmns, and additional restrictions
Inactive Publication Date: 2018-01-11
CORE WIRELESS LICENSING R L
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- Application Information
AI Technical Summary
Benefits of technology
This approach enables terminals to initiate services regardless of the serving system's capabilities, maintaining network control and avoiding unnecessary system mode changes, ensuring that the terminal receives the requested service by directing the request to a supporting system mode, thus enhancing service flexibility and availability.
Problems solved by technology
However, when the terminal requests a service, the request is limited to the services supported by the terminal in the currently serving system mode, additional restrictions may be set if the network indicates non-support for some specific network capabilities.
Currently there already exist other similar problem cases for other services as well, and the above mentioned proposed solutions by different vendors are not applicable for solving the problems for these other cases but are only directed to narrow and particular problems.
The difficulty in these solutions is that they are targeted to a specific problem and are not suitable for solving the issue in generic way (though, these proposals are not actually acceptable to solve the mentioned problems).
The disadvantage of these solutions is that the mobile station awareness of the services available from different PLMNs cannot be easily arranged.
Also the disadvantage is the need to have service / content based preference lists either in terminal or in network.
Furthermore the optimum PLMN cannot be selected for mobile terminated services in which case the mobile station would not be aware of the service in advance and then cannot select the appropriate PLMN in advance and the service request would be rejected already by the PLMN where the mobile station is attached at the time of the service establishment attempt.
Hence the prior art does not provide a solution for a fully flexible service request in respect to the terminal and the network capabilities in different modes.
Method used
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[0018]1. Making service request independent from the serving system mode Since a multimode terminal may support a wide range of services where some specific services are not supported by the mobile in all system modes and some specific services may not be requested from the serving system, it is possible that the terminal (user) does not reach the service it would be able to support, and a service that would be available at the current terminal location through other system modes.
[0019]This problem can be solved by a generic service request procedure that allows the terminal to request any of the services it supports, in any of the system modes it supports, through the current serving system.
[0020]This generic service request can be implemented in several different ways. Normally the network should indicate support for generic service requests in order to avoid compatibility problems for new terminals in legacy networks. In case a generic service request is allowed the terminal may:...
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Generic service request signaling is defined where a multimode terminal is allowed to request any service that it supports in any of the modes (e.g., access technology like GERAN / UTRAN / CDMA2000 / Bluetooth / WLAN / . . . ) supported by the terminal. The network may then decide to move the terminal to other system if possible and necessary in order to establish the service. Mostly existing terminal capability indication for each system mode is used.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is a continuation of U.S. patent application Ser. No. 10 / 563,545 filed on Feb. 15, 2007, which was the National Stage of International Application No. PCT / FI2004 / 000427 filed Jul. 6, 2004, this application claims the benefit to Provisional Application No. 60 / 485,609, filed Jul. 7, 2003, which is hereby incorporated by reference.BACKGROUND OF THE INVENTION1. Technical Field[0002]The present invention relates to telecommunications and, more particularly, to mobile telecommunications terminals and utilization of network services.2. Discussion of Related Art[0003]Multimode terminals are getting more and more popular. Multimode terminals are capable of operating on different system modes (using different radio access technologies and / or able to attach to different core networks). Examples of different system modes are GERAN, WCDMA, TDMA, AMPS, CDMA 2000, WLAN, Bluetooth etc. Multimode networks may support different types of in...
Claims
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IPC IPC(8): H04W28/24H04W8/24H04L12/28H04W36/14H04W48/18H04W88/06
CPCH04W88/06H04W48/18H04W36/14H04W28/24H04W8/245H04W36/1443
InventorPIRILA, HANNUJOKINEN, HARRIPIHL, KARI
OwnerCORE WIRELESS LICENSING R L