Abstract:
A method for updating an area and a device for the same in a wireless communication system is disclosed. Particularly, a method for performing a Tracking Area Update (TAU) with a Mobility Management Entity (MME) change performed by a first MME in a wireless communication system may include receiving a Context Request message from a second MME during the TAU procedure and transmitting a Context Response message to the second MME in response to the Context Request message, wherein an indication that there are downlink data buffered in the S-GW may be included in the Context Response message when downlink data is buffered in a Serving Gateway (S-GW) and a buffering time of the downlink data in the S-GW is not expired.
Abstract:
One embodiment of the present invention relates to a method by which a mission critical push to talk (MCPTT) server establishes a group call in a wireless communication system, comprising the steps of: determining whether to add a user equipment (UE) to an ongoing group call; transmitting information relating to the ongoing group call to the UE if it is determined that the UE is added to the ongoing group call; and receiving an OK response for the ongoing group call from the UE.
Abstract:
An embodiment of the present invention relates to a method for controlling an application related to a third party server by a network node in a wireless communication system. The application control method comprises the steps of: receiving a Control of Applications when Third Party Servers encounter difficulties (CATS)-related policy from a gateway; and transmitting the CATS-related policy to a terminal, wherein the network node stores the CATS-related policy when the terminal is in an idle mode.
Abstract:
A method for cancelling a group messaging in a wireless communication system and an apparatus for the same is disclosed. Particularly, a method for cancelling a group messaging performed by a network node in a wireless communication system may include receiving a group messaging cancellation request message that includes a group messaging identifier of a group messaging requested to be cancelled and cancellation indication information and stopping a transmission of a group messaging that corresponds to the group messaging identifier, and transmitting the group messaging identifier to a user equipment.
Abstract:
An embodiment of the present invention relates to a method of selecting, by a first UE, a relay in a proximity service (ProSe) in a wireless communication system, the method including the steps of transmitting a UE-to-Network Relay discovery message; selecting a second UE as the UE-to-Network Relay; setting a connection for direct communication with the second UE; and transmitting a registration request message to a group communication service application server (GCS AS) through the second UE, wherein when the UE-to-Network Relay discovery message includes UE-to-UE Relay related request information, the UE-to-UE Relay related information is received from the second UE and the second UE is selected as the UE-to-UE Relay based on the UE-to-UE relay related information.
Abstract:
A method for transmitting and receiving a group messaging in a wireless communication system and an apparatus for the same is disclosed. Particularly, the method for receiving a group message performed by a user equipment (UE) in a wireless communication system include receiving assistance information indicating whether a paging message is transmitted for each UE group from a network node, receiving the paging message from the network node on a paging occasion of the UE, when the transmission of the paging message for a group to which the UE is belonged in indicated by the assistance information, and receiving the group message, when a group message transmission for the group to which the UE is belonged is activated by the paging message.
Abstract:
A method and a user equipment (UE) configured for dual priority for controlling a backoff timer are discussed. The method according to an embodiment includes transmitting a first non access stratum (NAS) request message without an access point name (APN) including a low priority indicator set to a first value to a network node; receiving a reject message for the NAS request message from the network node; initiating a session management (SM) backoff timer in response to the reject message; and transmitting a second NAS request message including the low priority indicator set to a second value to the network node while the SM backoff timer is running. The first value of the low priority indicator indicates that the UE is configured for NAS signaling low priority. The second value of the low priority indicator indicates that the UE is not configured for NAS signaling low priority.
Abstract:
A method and a network entity for controlling a service in charge of a control plane in a network are discussed. The method according to an embodiment includes receiving subscription information including an indicator related to a selected internet protocol (IP) traffic offload (SIPTO). The method further includes triggering a re-establishment of the SIPTO when a movement of a user equipment from an (e)Node B to a Home (e)Node B is detected; allowing the SIPTO excluding a SIPTO at the local network based on an access point name (APN) when the indicator indicates that the SIPTO is allowed and the SIPTO at the local network is excluded; and allowing the SIPTO including the SIPTO at the local network based on the APN when the indicator indicates that the SIPTO is allowed and the SIPTO at the local network is included.
Abstract:
The present invention relates to a mobile communication system, and more particularly relates to a method for transmitting a small-sized control signal (also known as “small data”) using a control plane in a MTC (machine-type communication) service in a mobile communication system. In the present invention, MTC data is encapsulated in an existing control procedure or control message or the like, on a control signal, without performing packet data bearer setup, and the control signal having the encapsulated MTC data is sent between a network and a terminal, thereby optimizing network resource efficiency and reducing the wireless channel load.
Abstract:
One embodiment of the present specification provides a method for supporting a power saving mode in a wireless device. The method can comprise the steps of: transmitting a request message including a first active time value to a network entity, if a PSM is necessary; and receiving a rejection message for the request message from the network entity. Here, the rejection message includes the reason for rejection, and can include a second active time value determined by considering the first active time value. The method can comprise the steps of terminating the transmission procedure of the request message after receiving the reject message, and entering a PSM state on the basis of the second active time value.