Mobile terminated call improvements
First Claim
1. A method comprising:
- receiving at a mobility management node (MMN) a first request transmitted by a user entity (UE); and
after receiving the first request, the MMN transmits towards a Packet Data Network (PDN) gateway node (PGW) a second request comprising information for enabling the PGW to recover a PDN connection previously established for the UE, whereinthe information for enabling the PGW to recover the PDN connection comprises an MMN identifier for identifying the MMN.
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Accused Products
Abstract
In one aspect, a method for a packet gateway node (PGW) is disclosed. The PGW being adapted for (a) communicating with at least a serving gateway node, SGW, (b) receiving and forwarding downlink data packets to a user entity, UE, and (c) communicating with a mobility management entity, MME. In one embodiment, the method comprises: the PGW, when receiving a downlink user plane data packet destined for the UE on a Packet Data Network, PDN, connection associated with a restarted SGW, determining if the PDN connection has not yet been relocated to a new SGW, and, if so, selecting at least one SGW from a set of SGWs including the restarted SGW or another SGW and transmitting a control plane signal to at least one of the selected SGWs, the control plane signal identifying at least the UE.
9 Citations
19 Claims
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1. A method comprising:
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receiving at a mobility management node (MMN) a first request transmitted by a user entity (UE); and after receiving the first request, the MMN transmits towards a Packet Data Network (PDN) gateway node (PGW) a second request comprising information for enabling the PGW to recover a PDN connection previously established for the UE, wherein the information for enabling the PGW to recover the PDN connection comprises an MMN identifier for identifying the MMN. - View Dependent Claims (2, 3, 4)
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5. A mobility management node (MMN), the MMN comprising:
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a receiver; a transmitter; and a processing unit, comprising a processor, coupled to the receiver and the transmitter, wherein the processing unit is configured such that, after the MMN receives a first request transmitted by a user entity (UE), the processing unit causes the MMN to transmit towards a Packet Data Network (PDN) gateway node (PGW) a second request comprising information for enabling the PGW to recover a PDN connection previously established for the UE, the first request is one of an Attach Request and a Tracking Area Update Request, the second request is one of a first Create Session Request and a Modify Bearer Request, and the information for enabling the PGW to recover the PDN connection comprises an MMN identifier for identifying the MMN. - View Dependent Claims (6, 7)
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8. A method comprising:
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a mobility management node (MMN) receiving a first request message transmitted by a user entity (UE), wherein the first request message is one of an Attach Request and a Tracking Area Update (TAU) Request; and after receiving the first request message, the MMN transmitting to a serving gateway (SGW) a second request message comprising information to be forwarded by the SGW to a Packet Data Network (PDN) gateway (PGW), the information to be forwarded by the SGW to the PGW comprising an MMN identifier identifying the MMN, wherein the second request message is one of a first Create Session Request and a Modify Bearer Request, and the second request message comprises a plurality of Information Elements (IEs) including an MMN identifier IE containing the MMN identifier identifying the MMN. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A mobility management node (MMN), the MMN comprising:
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a receiver for receiving a first request message transmitted by a user entity (UE), wherein the first request message is one of an Attach Request and a Tracking Area Update (TAU) Request; a transmitter; and a processing unit, comprising a processor, coupled to the receiver and the transmitter, wherein the MMN is configured to; after receiving the first request message, employ the transmitter to transmit to a serving gateway (SGW) a second request message comprising information to be forwarded by the SGW to a Packet Data Network (PDN) gateway (PGW), the information to be forwarded by the SGW to the PGW comprising an MMN identifier identifying the MMN, wherein the second request message is one of a first Create Session Request and a Modify Bearer Request, and the second request message comprises a plurality of Information Elements (IEs) including an MMN identifier IE containing the MMN identifier identifying the MMN. - View Dependent Claims (17, 18, 19)
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Specification