Abstract: A method for handling a service connection in a wireless communication system, including detecting, by a User Equipment (UE), a Mobility Management (MM) service state of the UE is set to ATTEMPTING TO UPDATE, receiving, by the UE, a valid Temporary Mobile Subscriber Identity (TMSI) in a TMSI reallocation procedure from a base station via a Radio Resource Control (RRC) connection, changing, by the UE, the MM service state to a NORMAL SERVICE state in response to the receiving a valid TMSI and the detecting a MM service state, and sending, by the UE, a paging response message to the base station in response to the changing the MM service state and a paging indication message received from the base station to establish the service connection, the paging indication message including the valid TMSI.

Abstract: A method for handling a service connection in a wireless communication system, including detecting, by a User Equipment (UE), a Mobility Management (MM) service state of the UE is set to ATTEMPTING TO UPDATE, receiving, by the UE, a valid Temporary Mobile Subscriber Identity (TMSI) in a TMSI reallocation procedure from a base station via a Radio Resource Control (RRC) connection, changing, by the UE, the MM service state to a NORMAL SERVICE state in response to the receiving a valid TMSI and the detecting a MM service state, and sending, by the UE, a paging response message to the base station in response to the changing the MM service state and a paging indication message received from the base station to establish the service connection, the paging indication message including the valid TMSI.

Abstract: Embodiments herein provide a method for handling communication with a wireless network by a user equipment (UE). The method includes determining that a data inactivity timer has expired during a PS/CS call recovery procedure with a network. The method identifies whether data inactivity that caused the data inactivity timer to expire is due to a radio link failure with the network. A radio link is recovered through the recovery procedure for resuming the PS/CS call with the network, in response to identifying that the data inactivity was due to the radio link failure.

Abstract: Providing call continuity for an ongoing call of a User Equipment (UE) of a wireless communication by defining UE behavior specifying actions to be taken by the UE upon detection of occurrence of an event among a plurality of events that may occur during the ongoing call.

Abstract: A method for handling a service connection in a wireless communication system, including detecting, by a User Equipment (UE), a Mobility Management (MM) service state of the UE is set to ATTEMPTING TO UPDATE, receiving, by the UE, a valid Temporary Mobile Subscriber Identity (TMSI) in a TMSI reallocation procedure from a base station via a Radio Resource Control (RRC) connection, changing, by the UE, the MM service state to a NORMAL SERVICE state in response to the receiving a valid TMSI and the detecting a MM service state, and sending, by the UE, a paging response message to the base station in response to the changing the MM service state and a paging indication message received from the base station to establish the service connection, the paging indication message including the valid TMSI.

Abstract: Embodiments herein provide a method for handling communication with a wireless network by a user equipment (UE). The method includes determining that a data inactivity timer has expired during a PS/CS call recovery procedure with a network. The method identifies whether data inactivity that caused the data inactivity timer to expire is due to a radio link failure with the network. A radio link is recovered through the recovery procedure tor resuming the PS/CS call with the network, in response to identifying that the data inactivity was due to the radio link failure.

Abstract: A method of managing evolved universal mobile telecommunication system terrestrial radio access network (E-UTRAN) capability of a user equipment (UE) is provided that includes switching from a first radio access technology (RAT) to a second RAT if the first RAT fails to provide circuit switched (CS) services to the UE, the first RAT and the second RAT being associated with a first public landline mobile network (PLMN). The UE establishes a CS call session with the second RAT. In the meanwhile, the UE receives a network handover command to move to a second PLMN. The UE may also perform a movement from the first PLMN to the second PLMN and connect with a third RAT associated with the second PLMN to continue the CS call session. The UE enables the E-UTRAN capability after moving to the second PLMN to connect with a fourth RAT available in the second PLMN.

Abstract: Providing call continuity for an ongoing call of a User Equipment (UE) of a wireless communication by defining UE behavior specifying actions to be taken by the UE upon detection of occurrence of an event among a plurality of events that may occur during the ongoing call.

Abstract: Methods and apparatuses are provided for providing integrity protection in a dual subscriber identity module (SIM) dual standby (DSDS) device. A first message is received on a first SIM of the DSDS device before a radio resource of the DSDS device is tuned away from the first SIM to a second SIM by performing a tune-away procedure. A second message is received after completion of the tune-away procedure. The second message is validated. It is determined whether a first payload of the first message matches a second payload of the second message, when the first message and the second message have a same message sequence number. It is determined that the second message is a duplicate message, when the first payload matches the second payload.

Abstract: A method of managing evolved universal mobile telecommunication system terrestrial radio access network (E-UTRAN) capability of a user equipment (UE) is provided that includes switching from a first radio access technology (RAT) to a second RAT if the first RAT fails to provide circuit switched (CS) services to the UE, the first RAT and the second RAT being associated with a first public landline mobile network (PLMN). The UE establishes a CS call session with the second RAT. In the meanwhile, the UE receives a network handover command to move to a second PLMN. The UE may also perform a movement from the first PLMN to the second PLMN and connect with a third RAT associated with the second PLMN to continue the CS call session. The UE enables the E-UTRAN capability after moving to the second PLMN to connect with a fourth RAT available in the second PLMN.

Abstract: Methods and apparatuses are provided for providing service recovery at a user equipment (UE) of a mobile communication network. The UE establishes a call in a first public land mobile network (PLMN). A handover zone of the first PLMN and a second PLMN is entered. The second PLMN is in a forbidden PLMN list of the UE. The UE receives a dedicated message with an indication of the second PLMN. The second PLMN is removed from the forbidden PLMN list. The UE performs registration with the second PLMN so that services of the second PLMN are available to the UE.

Abstract: Methods and apparatuses are provided for providing integrity protection in a dual subscriber identity module (SIM) dual standby (DSDS) device. A first message is received on a first SIM of the DSDS device before a radio resource of the DSDS device is tuned away from the first SIM to a second SIM by performing a tune-away procedure. A second message is received after completion of the tune-away procedure. The second message is validated. It is determined whether a first payload of the first message matches a second payload of the second message, when the first message and the second message have a same message sequence number. It is determined that the second message is a duplicate message, when the first payload matches the second payload.

Abstract: Methods and apparatuses are provided for providing service recovery at a user equipment (UE) of a mobile communication network. The UE establishes a call in a first public land mobile network (PLMN). A handover zone of the first PLMN and a second PLMN is entered. The second PLMN is in a forbidden PLMN list of the UE. The UE receives a dedicated message with an indication of the second PLMN. The second PLMN is removed from the forbidden PLMN list. The UE performs registration with the second PLMN so that services of the second PLMN are available to the UE.

Abstract: Methods and apparatuses are provided for preserving a signaling connection using a UE in a wireless network. An RAU request message is sent from the UE, to at least one network node in the wireless network, when a suspension condition is detected at the UE while the UE is in a connected state. The UE receives a RAU response message from the at least one network node. Activation of a timer is restricted at the UE to preserve the signaling connection in response to receipt of the RAU response message, when at least one radio bearer associated with the UE is detected.

Abstract: An apparatus and method of a User Equipment (UE) for preserving an active state of an Idle Mode Signaling Reduction (ISR) function in a wireless communication network are provided. The method includes sending, by the UE, during an Inter-Radio Access technology (RAT)/System change, an area update request message to a node in the wireless communication network; receiving, by the UE, an area update accept message from the node; and setting, by the UE, a Temporary Identity Used in Next Update (TIN) parameter to a RAT-related Temporary Mobile Subscriber Identity (TMSI) to preserve the ISR function, in response to receiving the area update accept message, when a status of a periodic area update timer is deactivated.