RESPONSE TO A NON ACCESS STRATUM MESSAGE
First Claim
1. A method in a core network communicatively connected to a radio access network (RAN) comprising a first network element and a second network element, comprising:
- receiving, by a mobility management node in the core network, a first Non Access Stratum (NAS) message via the second network element from a user equipment (UE), wherein the mobility management node stores a first identifying characteristic associated with at least one of a Local IP Access (LIPA) packet data network (PDN) connection or a selected IP traffic offload (SIPTO) PDN connection, the at least one of the LIPA PDN connection or the SIPTO PDN connection being via the first network element and for the UE;
detecting, by the mobility management node, that the UE is connected to the second network element that is different from the first network element that has the first identifying characteristic, wherein the detecting comprises determining that the first NAS message is received via the second network element; and
in response to a condition that each PDN connection of the UE is a LIPA PDN connection or a SIPTO PDN connection, sending, by the mobility management node, a second NAS message, the second NAS message including a cause code with a value that represents “
No EPS Bearer Context Activated.”
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0 Petitions
Accused Products
Abstract
A mobility management node in A core network receives a first Non Access Stratum (NAS) message via a second network element from a user equipment (UE), wherein the mobility management node stores a first identifying characteristic associated with at least one of a Local IP Access (LIPA) packet data network (PDN) connection or a selected IP traffic offload (SIPTO) PDN connection, the at least one of the LIPA PDN connection or the SIPTO PDN connection being via a first network element and for the UE. The mobility management node detects that the UE is connected to the second network element that is different from the first network element that has the first identifying characteristic, and in response to a condition that each PDN connection of the UE is a LIPA PDN connection or a SIPTO PDN connection, sends a second NAS message, the second NAS message including a cause code with a value that represents “No EPS Bearer Context Activated.”
5 Citations
20 Claims
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1. A method in a core network communicatively connected to a radio access network (RAN) comprising a first network element and a second network element, comprising:
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receiving, by a mobility management node in the core network, a first Non Access Stratum (NAS) message via the second network element from a user equipment (UE), wherein the mobility management node stores a first identifying characteristic associated with at least one of a Local IP Access (LIPA) packet data network (PDN) connection or a selected IP traffic offload (SIPTO) PDN connection, the at least one of the LIPA PDN connection or the SIPTO PDN connection being via the first network element and for the UE; detecting, by the mobility management node, that the UE is connected to the second network element that is different from the first network element that has the first identifying characteristic, wherein the detecting comprises determining that the first NAS message is received via the second network element; and in response to a condition that each PDN connection of the UE is a LIPA PDN connection or a SIPTO PDN connection, sending, by the mobility management node, a second NAS message, the second NAS message including a cause code with a value that represents “
No EPS Bearer Context Activated.” - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A mobility management node for use in a core network communicatively connected to a first radio access network (RAN) comprising a first network element and a second network element, comprising:
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a memory; and at least one processor coupled to the memory and configured to; receive a first Non Access Stratum (NAS) message via the second network element from a user equipment (UE), wherein the mobility management node is to store a first identifying characteristic associated with at least one of a Local IP Access (LIPA) packet data network (PDN) connection or a selected IP traffic offload (SIPTO) PDN connection, the at least one of the LIPA PDN connection or the SIPTO PDN connection being via the first network element and for the UE; detect that the UE is connected to the second network element that is different from the first network element that has the first identifying characteristic, wherein the detecting comprises determining that the first NAS message is received via the second network element; and in response to a condition that each PDN connection of the UE is a LIPA PDN connection or a SIPTO PDN connection, send a second NAS message, the second NAS message including a cause code with a value that represents “
No EPS Bearer Context Activated.” - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A non-transitory machine-readable storage medium comprising instructions that upon execution cause a mobility management node in a core network communicatively connected to a first radio access network (RAN) comprising a first network element and a second network element, to:
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receive a first Non Access Stratum (NAS) message via the second network element from a user equipment (UE), wherein the mobility management node is to store a first identifying characteristic associated with at least one of a Local IP Access (LIPA) packet data network (PDN) connection or a selected IP traffic offload (SIPTO) PDN connection, the at least one of the LIPA PDN connection or the SIPTO PDN connection being via the first network element and for the UE; detect that the UE is connected to the second network element that is different from the first network element that has the first identifying characteristic, wherein the detecting comprises determining that the first NAS message is received via the second network element; and in response to a condition that each PDN connection of the UE is a LIPA PDN connection or a SIPTO PDN connection, send a second NAS message, the second NAS message including a cause code with a value that represents “
No EPS Bearer Context Activated.” - View Dependent Claims (20)
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Specification