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US 2018/0324761 A1Published application
Communication system
AssigneeNEC Corporation
InventorsGenadi VELEV, Iskren IANEV, Toshiyuki TAMURA
Life of this patent
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Abstract
The invention describes a method for detecting an inability to serve a UE in the selected serving node due to mismatch between the UE's DCN-related indication and the UE's DCN-related subscription and/or the UE's capabilities and/or due to serving node congestion. The method allows to update the UE's DCN configuration information, so that the UE can be assigned to an appropriate DCN during the next RRC/NAS request procedure.
Claims13
1-6. (canceled)
A communication method for selecting a network resource, comprising:
- receiving a Non-Access Stratum (NAS) message including information for selecting a network slice, from a mobile terminal via an access network node;
- retrieving subscription information from a core network control plane network function;
- determining whether the information for selecting the network slice and relevant data from the subscription information are matched or not;
- and
- rejecting the NAS message with a cause corresponding to unmatching between the information for selecting the network slice and the relevant data from the subscription information, wherein the cause indicates that the network slice is not allowed to access.
2 more elements
A communication method for a mobile terminal, comprising:
- sending a Non-Access Stratum (NAS) message including information for selecting a first network slice, towards an access network node;
- receiving a NAS reject message with a cause indicating that the information related to the first network slice is not allowed, from a core network node via the access network node;
- updating the information for selecting the first network slice to information for selecting a second network slice;
- and
- sending another NAS message including the updated information for selecting the second network slice towards the access network node.
2 more elements
A core network node for selecting a network slice, comprising:
- a receiver configured to receive a Non-Access Stratum (NAS) message including information for selecting the network slice, from a mobile terminal via an access network node;
- and
- at least one processor configured to:
- retrieve subscription information from a core network control plane network function;
- determine whether the information for selecting the network slice and relevant data from the subscription information are matched or not;
- and
- reject the NAS message with a cause corresponding to unmatching between the information for selecting the network slice and the relevant data from the subscription information, wherein the cause indicates that the network slice is not allowed to access.
4 more elements
A mobile terminal, comprising:
- a first sender configured to send a Non-Access Stratum (NAS) message including information for selecting a first network slice, towards an access network node;
- a receiver configured to receive a NAS reject message with a cause indicating that the information related to the first network slice is not allowed, from a core network node via the access network node;
- at least one processor configured to update the information for selecting the first network slice to information for selecting a second network slice;
- and
- a second sender configured to send another NAS message including the updated information for selecting the second network slice, towards the access network node.
2 more elements
A system comprising a core network node for selecting a network slice and a mobile terminal,
- wherein the core network node comprises:
- a receiver configured to receive a Non-Access Stratum (NAS) message including information for selecting a first network slice, from a mobile terminal via an access network node;
- and
- at least one processor configured to:
- retrieve subscription information from a core network control plane network function;
- determine whether the information for selecting the first network slice and relevant data from the subscription information are matched or not;
- and
- reject the NAS message with a cause corresponding to unmatching between the information for selecting the first network slice and the relevant data from the subscription information, wherein the cause indicates that the network slice is not allowed to access,
- wherein the mobile terminal comprises:
- a first sender configured to send a Non-Access Stratum (NAS) message including information for selecting the first network slice, towards an access network node;
- a receiver configured to receive a NAS reject message with a cause indicating that the information related to the first network slice is not allowed, from a core network node via the access network node;
- at least one processor configured to update the information for selecting the first network slice to information for selecting a second network slice;
- and
- a second sender configured to send another NAS message including the updated information for selecting the second network slice, towards the access network node.
11 more elements
Dependencies are inferred from the claim text.