Telefonaktiebolaget Lm Ericsson (publ)

Assa Ab

Assa Oem Ab

Tony Olsson

Yong Yang

Patrik Hermansson

Peter Hedman

Qian Chen

Hans-Olof Sundell

Erik Wikström

Anders Fredén

Yang Yong

Anders FRÈDEN

The invention relates to methods and device for detecting when a mobile terminal is in a state where it is incapable of replying to a message. In a first aspect of the present invention, it is provided a method of detecting, at a mobility node in a communications network, a state where a mobile terminal is incapable of replying to a message. The method comprises receiving the message from a gateway node, and determining whether the mobile terminal is incapable of replying to the message. Further, the method comprises sending a response to the gateway node indicating that the mobile terminal is not yet capable to reply to the message.

EPC enhancement for long DRX and power saving state

The embodiments herein relate to a method performed by a gateway. The gateway detects that a procedure for activating or deactivating a bearer has been initiated. The gateway receives a first modify bearer or modify access bearers request message for the same PDN connection and UE as the bearer activation or deactivation procedure is intended for. The gateway detects a bearer mismatch between a first set of bearers and a second set of bearers known by the gateway and associated with said same PDN connection and UE. The gateway accepts, during a time interval, the received modify bearer or modify access bearers request message even though the bearer mismatch has been detected.

Methods and nodes for handling bearers

A mobility management node (e.g., MME) for selecting a network access gateway node (e.g., PGW) when establishing a PDN connection for a radio terminal to a PDN identified by an APN, which mobility management node is configured to operatively manage the mobility for the radio terminal and which access gateway node is configured to operatively act as a network access gateway to the PDN so as to provide connectivity for the radio terminal to the PDN.

Gateway weight factor and load information

The embodiments herein relate to a method performed by a gateway (). The gateway () detects that a procedure for activating or deactivating a bearer has been initiated. The gateway () receives a first modify bearer or modify access bearers request message for the same PDN connection and UE () as the bearer activation or deactivation procedure is intended for. The gateway () detects a bearer mismatch between a first set of bearers and a second set of bearers known by the gateway () and associated with said same PDN connection and UE (). The gateway () accepts, during a time interval, the received modify bearer or modify access bearers request message even though the bearer mismatch has been detected.

Method and nodes for handling bearers

The disclosure herein is directed to a method in a mobility management node (MME) and a mobility management node (MME) for executing the method of selecting a network access gateway node (PGW, PGW, PGW) when establishing a PDN connection for a radio terminal (UE) to a PDN () identified by an APN (APN) which mobility management node is configured to operatively manage the mobility for the radio terminal and which access gateway node is configured to operatively act as a network access gateway to the PDN so as to provide connectivity for the radio terminal to the PDN, the method comprises: receiving (), from a number of network access gateway nodes (PGW, PGW, PGW), APN capacity allocation information indicating the APN capacity that each access gateway node has allocated to serve the APN, and APN load information indicating the APN load that each access gateway currently experience with respect to the APN, receiving (), from a Domain Name Server (DNS), weight factor information indicating the relative amount at which each access gateway node should be selected when a PDN connection is created, and selecting () a network access gateway node among said number of network access gateways based on the APN capacity allocation information and the APN load information and the weight factor information.

A serving gateway node (SGW) and a method therefore is being provided being adapted for operating in a network in which a control-plane tunnel between a mobility manage-men! entity (MME) and a serving gateway node (SGW), a control plane tunnel between the serving gateway node (SGW) and a packet gateway node (PGW), and one or more user plane tunnels between the serving gateway node (SGW) and the packet gateway node (PGW), may be set up, the serving gateway (SGW) comprising an application layer control mechanism (APL LR CTRL), interface means, (!F) and a data base (DB). The serving gateway (SGW) is adapted for entering a state of ECM-IDLE () and ECM-CONNECTED () for a user entity (UE) in question. The serving gateway upon reception of a Modify Bearer Request message () may effectuate a setting up one or more user plane tunnels between the serving gateway (SGW) and a base station (eNodeB). The serving gateway (SGW) is being adapted to, upon receiving a Create Session Request message () from a packet gateway node, set up a timer (), which on time-out () effectuates the serving gateway to put the user entity in ECM-IDLE () even if no Modify Bearer Request () is received.

Growing community of inventors

Nösund, Sweden

Tony Olsson