Intersystem handover of a mobile terminal
First Claim
1. A method for performing an intersystem handover of a mobile terminal accessing a communication network via a radio access network of a first type, wherein said communication network comprises at least said radio access network of said first type and a radio access network of a second type, and wherein said intersystem handover is initiated by a transmission of said mobile terminal to said communication network, which transmission comprises information indicating that an intersystem handover from said radio access network of said first type to said radio access network of said second type should be performed.
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Accused Products
Abstract
The invention relates to a method for performing an intersystem handover of a mobile terminal accessing a communication network via a radio access network of a first type. The communication network comprises at least this radio access network of this first type and a radio access network of a second type. In order to enable an access to the communication network with a radio access technology required or desired by the mobile terminal, the intersystem handover is initiated by a transmission of the mobile terminal to the communication network, which transmission comprises information indicating that an intersystem handover from the radio access network of the first type to the radio access network of said second type should be performed. The invention equally relates to a corresponding mobile terminal, to a corresponding communication network, to a corresponding communication system, to a network element of a communication network and to a web switch of a communication system.
268 Citations
35 Claims
- 1. A method for performing an intersystem handover of a mobile terminal accessing a communication network via a radio access network of a first type, wherein said communication network comprises at least said radio access network of said first type and a radio access network of a second type, and wherein said intersystem handover is initiated by a transmission of said mobile terminal to said communication network, which transmission comprises information indicating that an intersystem handover from said radio access network of said first type to said radio access network of said second type should be performed.
- 22. A mobile terminal comprising means for accessing a communication network via at least two different types of radio access networks, and transmitting means for transmitting an information indicating that an intersystem handover from a radio access networks of a first type of said communication network to a radio access network of a second type of said communication network should be performed.
- 26. A communication network comprising radio access networks of at least two different types and means for performing an intersystem handover of a mobile terminal accessing said communication network via a radio access network of a first type to a radio access network of a second type upon an information received from said mobile terminal indicating that an intersystem handover from said radio access network of said first type to a radio access network of said second type should be performed.
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32. A network element for a communication network, which network element comprises means for analyzing information received by a mobile terminal connected via a first type of radio access network to said communication network, and means for triggering an intersystem handover of said mobile terminal in case said analyzed information indicates that an intersystem handover of said mobile terminal to a second type of radio access network should be performed.
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33. A web switch for connecting a communication network and a content server, said web switch comprising storing means for storing a list of uniform resource locations (URL) which correspond to content that is only available from said content server via a specific type of radio access network, means for comparing a URL requested by a mobile terminal from said content server via said communication network with said stored list of URLs, and means for triggering a handover of said mobile terminal in said communication network in case said mobile terminal is connected to said communication network via another type of radio access network than said specific type of radio access network and in case said requested URL is contained in said stored list of URLs.
- 34. A communication system comprising a communication network with at least two different types of radio access networks and with means for performing an intersystem handover of a mobile terminal from a radio access network of a first type to a radio access network of a second type upon an initiation by a transmission of said mobile terminal, said communication system further comprising at least one mobile terminal with means for accessing said communication network via said radio access network of said first type and said radio access network of said second type and with transmitting means for transmitting an information indicating that an intersystem handover from a radio access networks of a first type of said communication network to a radio access network of a second type of said communication network should be performed.
Specification