Abstract: A method for supporting packet data network (PDN) gateway (GW) selection, comprising the following steps of: receiving by a mobility management entity (MME) a local route optimization service request information; searching by the MME the internet protocol (IP) address of a PDN GW which supports local route optimization according to the IP address of a PDN GW on home evolved node B (HeNB) (PDN GWh); sending by the MME a bearer request establishment message to the PDN GWh. The method of the present invention can ensure core network equipment to find PDN GW correctly while HeNB system supports local route optimization.

Abstract: A System Frame Number (SFN) acquisition method is provided. The System Frame Number (SFN) acquisition method of a terminal according to the present invention includes receiving a first message for adding a secondary cell of a secondary base station from a primary cell of a primary base station, receiving a Master Information Block (MIB) broadcast in the secondary cell, and acquiring a SFN information for the secondary cell from the MIB, and applying the SFN information to at least one cell of the secondary base station.

Abstract: The invention relates to a measuring arrangement having a two-wire field device comprising a control unit, a sensor, and a radio module, a superordinate unit to which the field device is connected via a two-wire line, wherein signals from the field device are transmitted to the superordinate unit at least as a current injected by the field device in a predetermined range to the superordinate unit, wherein an error current below the predetermined range signals an error, and a maintenance current above the predetermined range signals a maintenance mode, and the field device is designed in such a manner that the maintenance current feeds the radio module in the radio operation.

Abstract: A device-to-device (D2S) station including a receiving module, configured to receive a first DDM that is broadcast by a neighboring station at a first preset power, where the first DDM includes user information of the neighboring station, an obtaining module, configured to obtain information about a link between the D2D station and the neighboring station according to the first DDM received by the receiving module, a time determining module, configured to determine, according to the information that is about the link between the D2D station and the neighboring station and obtained by the obtaining module, a time interval for broadcasting a second DDM, and a sending module, configured to broadcast, at a second preset power, the second DDM at the time interval determined by the time determining module.

Abstract: Techniques are described for provisioning Wi-Fi network connectivity for a wireless device without requiring a user to provide network credentials to allow the wireless device to establish a network connection. In some implementations, a method is performed by a computing device to provision a wireless network connection. A MAC address associated with a property is obtained. A temporary network credential for the wireless device is determined based on the MAC Address of the wireless device. The temporary network credential permits the wireless device to connect to a temporary network. The temporary network credential for the wireless device is available over the temporary network. A determination that the wireless device has connected to the temporary network using the temporary network credential for the wireless device is made. An instruction is transmitted to the wireless device over the temporary network in response to the determination.

Abstract: A network core with a software defined networking (“SDN”) controller is provided to control routing of traffic within the network and between the network and the traffic destination. The SDN controller is merged with existing 3rd Generation Partnership Project (“3GPP”) network architecture to enable service deliveries via open application programming interfaces (“APIs”) and move the network core towards an all internet protocol (“IP”), cloud based, and software driven telecom network. The SDN controller can work with, or take the place of policy and charging rules function (“PCRF”) network elements, so that policies such as quality of service and traffic management and routing can be synchronized and managed end to end.

Abstract: Exemplary methods and systems are presented for social networking applications using autonomous mobile agents. Communication links are established based on geographic proximity and distance described as a domain in which resident agents are detected and identified. The communication links thus established allow platform independent communication along communication channels that are dynamically derived. Incorporation of computer machines and feature data sets permit agent classification and inter-agent notification of classification results.

Abstract: Provided is a contents sharing method between a mobile terminal and a local server. The contents sharing method between a client terminal storing metadata and a server terminal storing the metadata, the method comprising requesting the server terminal for a contents share service; and receiving information on contents corresponding to matching metadata as a result of comparing the metadata stored in the client terminal and the metadata stored in the server terminal, thereby sharing contents desired by the user without the user's intervention. Also, the user can communicate desired contents information with people in a bus, subway, library, etc., which forms a social network, and produces a contents flow between mobile terminals, thereby creating a new business model such as contents resale, promotion, etc.

Abstract: An electronic device and an method of operating an electronic device according to various example embodiments include: acquiring one of a plurality of pieces of identification information which are already registered; setting one of a plurality of function sets which are already registered based on the acquired identification information; and allowing access based on the set function set.

Abstract: A method for monitoring paging messages in a mobile station with a subscriber identity card camping on a cell is provided. A paging message from the cell is monitored at a set of M predetermined time intervals. A first paging message with a first subscriber identity information being successively broadcasted in the paging channel at a Nth predetermined time interval and a (N+i)th predetermined time interval of the set of M predetermined time intervals is determined. A second paging message with a second subscriber identity information being successively broadcasted in the paging channel at the Nth predetermined time interval and a (N+j)th predetermined time interval of the set of M predetermined time intervals is determined, wherein j>i. The paging channel is monitored at a (N+i)th predetermined time interval and a (N+j)th predetermined time interval of following predetermined time intervals subsequent to the M predetermined time intervals.

Abstract: An ultra-small cell base station for a vehicle is coupleable, for signal exchange, to a first antenna assembly, which is configured to receive radio signals of a cellular radio user device situated inside the vehicle and to emit radio signals to be received by the user device. The ultra-small cell base station is also coupleable to a second antenna assembly, configured to receive radio signals of a further cellular radio user device situated outside the vehicle and to emit radio signals to be received by the further user device. The ultra-small cell base station is also coupleable to a network-side antenna assembly of the vehicle configured to receive radio signals emitted by a pre-defined static cellular radio base station and to emit radio signals to be received by the static base station. The ultra-small cell base station is configured to operate a first and a second small cell.

Abstract: The present invention discloses a system and a method for securing the privacy of cellular network subscribers and the security of data stored on the said subscribers' User Cellular Devices (UCDs). The system comprises a Controlled Cellular Network (CCN), interfacing a cellular Public Land Mobile Network (PLMN), hosting a plurality of cellular subscribers. The said CCN system provides said security services to “serviced subscribers” of the hosting PLMN. The CCN encapsulates communication between UCDs of serviced subscribers and the hosting PLMN, including at least part of: control, signaling, SMS and data communications. The CCN is configured to identify security threats to the privacy of serviced subscribers and to the data stored on their UCDs, and determine said threats' category and probability, based on analysis of said encapsulated communication. CCN is configured to respond to said threats in real or near-real time, and take active measures to avert said suspected threats.

Abstract: A communication system is provided that can improve the communication capability of a communication terminal device in the case where a large number of small cells in addition to a macro cell are installed and operated. A communication terminal device (UE) is connected with a macro cell configured by a MeNB and a small cell configured by a SeNB, so that dual connectivity is performed. When receiving information for small cells, for example, emergency information from a CBC via an MME, at least one cell of the macro cell and the small cell notifies the communication terminal device connected with the at least one cell of the information for small cells.

Abstract: The present invention relates to a system, a device, and a method for customizing a user-defined network. The system includes a gateway and a mobile network element. The gateway is configured to receive a user-defined network request, request, according to the user-defined network request, an invocation of a communications service corresponding to the mobile network element to establish or modify the user-defined network, and return an invocation result. The user-defined network request includes definition information of an MBB communications service resource required by the MBB application service. The mobile network element is configured to implement invocation of the corresponding communications service.

Abstract: The present invention relates to a mobile terminal and a method for controlling the same, the mobile terminal including a location information module configured to acquire location information related to the mobile terminal based on one of a first positioning method that is configured to detect access points (APs) adjacent to the mobile terminal, receive location information related to the detected APs, and acquire the location information on the mobile terminal based on the received location information related to the APs, and a second positioning method that is configured to receive location information related to the detected APs and other APs located within a predetermined area where the detected APs are located, and acquire the location information on the mobile terminal based on the received location information related to the APs, a communication unit configured to perform wireless communication with a first positioning server providing first AP information including the location information related to

Abstract: Embodiments of the present invention provide a method of reducing power consumption in a wireless network device, comprising determining a duration prior to a beacon being received by the device; comparing the duration against a predetermined value; and adjusting a duration of a sleep period in response to the comparison.

Abstract: Apparatuses, systems, and methods to perform attachment of a wireless device to a next generation gateway via either a base station of a next generation radio access network (RAN) or a mobility management entity of a legacy RAN. An apparatus may be configured to receive an attachment request from a wireless device, determine authentication information via communication with a home subscriber server, determine, based at least in part on the authentication information, whether the wireless device is capable of communicating via the next generation RAT, and send, in response to determining the wireless device is capable, a connection request to a gateway of the next generation RAN. The authentication information may include subscription information associated with the wireless device.

Abstract: Example methods, apparatuses, and systems are presented for enabling and facilitating roaming of subscribers of a Home Public Mobile Network (HPMN) equipped with Long-Term Evolution (LTE) devices into LTE access network of a Visited Public Mobile Network (VPMN) under certain circumstances that are not supported by specifications promulgated by the Third Generation Partnership Project (3GPP) or the Global System for Mobile Association (GSMA). For example, a method for managing mobile device roaming is presented that includes receiving, at a gateway associated with the VPMN, a request message from an LTE device associated with the HPMN, wherein the request message requests wireless access to an LTE access network associated with the VPMN, enabling, at the gateway, registration of the LTE device to the LTE access network associated with the VPMN, and providing, at the gateway, an Internet Protocol (IP) connection to the LTE device.

Abstract: A user equipment with a primary identifier and a secondary identifier. The user equipment comprises a witness application stored in the memory, that when executed by the processor in a trusted security zone, wherein the trusted security zone provides hardware assisted trust, transmits a message comprising the logs of the communication service consumption to a server in a network of a service provider associated with the user equipment using a trusted end-to-end communication channel, wherein the logs are translated by the server to a format compatible with a billing data store supported by a billing server, wherein the translated logs are transmitted to the billing data store, whereby a bill is created for each of the primary identifier and the secondary identifier by the billing server accessing the billing data store.

Abstract: An access point including a memory; at least one network interface configured to interface over a network with one or more of a other access point and a user equipment (UE); and a processor configured to, establish, via the at least one interface, a virtual link with the UE based on the respective one of the at least one virtual address, and transfer the virtual link to the other access by transmitting a command to the other AP to set, after a time period, at least one network interface associated therewith to be addressable via the respective one of the at least one virtual address, and disassociating the at least one network interface and the respective one of at least one virtual address after the time period.

Abstract: Systems, apparatus, methods, and articles of manufacture provide for geolocating a user and/or a user device, based on one or more location data sources. Some embodiments may include use of a user authentication process (e.g., a two-factor authentication service) to improve confidence in the determined location of a user device. In one embodiment, a user and/or a user device may be allowed or denied access to restricted access content based on the determined location of the device.

Abstract: Methods, systems, and media for controlling network connections are provided. In some implementations, a method for controlling network connections is provided, the method comprising: determining, by a user device connection to an access point by a first network connection, that a second network connection is available; determining that the user device is in an idle state; while the user device is in the idle state, switching from the first network connection to the second network connection; monitoring network activity using the second network connection; switching back to the first network connection; generating a profile for the second network connection based at least in part on the monitored network activity; comparing the profile for the second network connection to a profile for the first network connection; selecting the second network connection based on the comparison; and in response to selecting the second network connection, switching to the second network connection.

Abstract: In certain embodiments, a method includes initiating, by a mobile device, an attempt to connect to a visiting network and receiving, by the mobile device in response to the attempt to connect to the visiting network, a rejection from the visiting network. The method includes initiating, by the mobile device in response to the rejection from the visiting network, a limited-services timer to initiate a limited-services state for the mobile device. The mobile device is subscribed to a service on a home network of the mobile device and is prevented in the limited-services state from attempting to access the service. The method further includes detecting, by the mobile device prior to expiration of the limited-services timer, availability of the home network and permitting, by the mobile device prior to expiration of the limited-service timer, the mobile device to attempt to connect to the home network for accessing the service.

Abstract: In one aspect, a method, a computer-readable medium, and an apparatus for wireless communication are provided. The apparatus may receive a registration request including requested features by a UE. The apparatus may determine to reject the registration request based on the requested CIoT optimization features. The apparatus may select a cause value from a plurality of cause values to include in a registration reject message to the UE. The apparatus may send the registration reject message to the UE.

Abstract: An electronic device according to various embodiments of the present disclosure may include at least one sensor module including a transmitter, a receiver, a secure memory for storing data obtained by the receiver, and a security control module for controlling the transmitter based on whether a target memory in which the obtained data is to be stored is the secure memory. In an example, the sensor may be a biometric sensor in which the transmitter transits an optical signal to a user's finger or iris or the like to authenticate the user. If malicious code attempting to defeat security is detected, so that the secure memory is not set up as the target memory, the security control module may control the transmitter by restricting transmission of signals.

Abstract: The present invention discloses methods and systems for configuring at least one radio frequency (RF) module by a wireless communication apparatus. The wireless communication apparatus sends a first message to the at least one RF module, and the first message comprises a request for at least one international mobile subscriber identity (IMSI) of at least one subscriber identity module (SIM) card. A second message is then received from the RF module, and the second message comprises the at least one IMSI. The wireless communication apparatus determines which wireless network service provider(s) the at least one SIM card is associated with. The wireless communication apparatus identifies at least one configuration information. The wireless communication apparatus then sends a third message to the at least one RF module, and the third message comprises the at least one configuration information. The at least one RF module is then configured based on the at least one configuration information.

Abstract: A method and apparatus for initiating communications on a shared channel in a mobile communication system are provided. A user equipment transmits an uplink signal for requesting communications on the shared channel to a Node B, and waits for a delay duration without monitoring a downlink after transmitting the uplink signal. When the delay duration has elapsed, the user equipment monitors the downlink during a valid period and determines whether a downlink signal responding to the uplink signal is received in a transmission time interval within the valid period. When the downlink signal is received in the valid period, the user equipment transmits and receives data on the shared channel.

Abstract: Techniques to adaptively launch/replace applications and services on edge devices in a cellular infrastructure and/or adaptively place content and computation at the edge devices based on logic at the network core are provided. In one aspect, a method for dynamic placement of applications in a cellular network mobile cloud is provided which includes the steps of: (a) obtaining: (i) a model of the cellular network, (ii) a model of user mobility patterns in the cellular network, and (iii) a model of a profile of the applications; (b) upon receipt of requests from users for the applications, obtaining runtime states at edge servers in the mobile cloud; and (c) upon obtaining the runtime states at the edge servers, placing the requests among the edge servers and a core server in the mobile cloud based on the models obtained in step (a) and the runtime states obtained in step (b).

Abstract: [Object] To enable prompt switching of communication. [Solution] A terminal device includes a mobile communication unit configured to perform mobile communication of a mobile communication network, an acquisition unit configured to acquire information regarding one or more wireless networks for wireless communication that is different from the mobile communication, and a providing unit configured to provide the information regarding the one or more wireless networks to another terminal device that performs the wireless communication. The information regarding the one or more wireless networks is at least partial information of information provided to the terminal device by an information providing device that provides information regarding a wireless network that is different from the mobile communication network to a device that performs the mobile communication.

Abstract: A method and system for providing a continued service to user equipment (UE) under overload conditions is disclosed. A primary network undertakes a protective measure under unable to serve conditions by commanding a change in the UE network access behavior so that the UE can move to the secondary PLMN. After receiving the indication from the primary network, the UE connects to the secondary network and continues to obtain the services from the secondary network. The secondary PLMN ID can be sent to the UE in system information. Further, the information like overload indication, secondary PLMN ID and the time for which the UE can obtain the services from the secondary PLMN ID can be sent to individual UEs over dedicated messages either on an Access Stratum (AS) message or over a Non Access Stratum (NAS) message.

Abstract: A method of operating a User Equipment (UE) enabled isolated Evolved Universal Mobile Telecommunications System Terrestrial Radio Access Network (E-UTRAN) operation for public safety (IOPS) is provided. The method includes receiving, from an IOPS-capable eNodeB (eNB), a system information block (SIB) message including an IOPS public land mobile network (PLMN) identity; activating a dedicated IOPS universal subscriber identity module (USIM) application based on the IOPS PLMN identity; and authenticating the IOPS-capable eNB based on the dedicated IOPS USIM application.

Abstract: In cellular communication systems, the success rate for incoming calls for a client terminal in idle mode is related to the successful reception of paging messages. The instances for paging message transmission, known as paging occasions, may be based on a client terminal's unique identity. The network transmits a paging message addressed to a specific client terminal in its specific paging occasion. In addition to the reception of paging messages, a client terminal may be required to search and monitor neighbor cells for cell reselection and handoffs. A method and apparatus are disclosed that improve the cell reselection by using the known a priori information to categorize the neighbor cells, to categorize the cell reselection types, and to perform cell reselection to an appropriate neighbor cell at the opportune time such that a paging message reception may be neither missed nor delayed during the cell reselection.

Abstract: Disclosed are a network access method and a mobile communications terminal. The method comprises: determining a network standard supported by a mobile communications terminal; adding to an equivalent public land mobile network (EPLMN) the network identifier of a public land mobile network (PLMN) of the determined network standard supported by the mobile communications terminal; if a PLMN matching the network identifier of the EPLMN is discovered by searching, then establishing a communications connection between the mobile communications terminal and the matching PLMN.

Abstract: A roaming device obtains an identifier for a network-enabled resource as a result of interacting with the network-enabled resource. The roaming device uses the identifier to obtain a link for the network-enabled device through a cloud service. The address is used to access and use the network-enabled resource using the cloud service.

Abstract: A method in a network node for handling a transmission between a plurality of Transmission Points, TPs, and User Equipments, UEs, in a wireless network. The network node receives information from each respective UE out of a number of first UEs served by the network node, which information is related to the location of the UE. The network node then identifies a hot spot, based on the information received from the UEs. The hot spot is an area where the load density of UEs is above a first threshold. When a hot spot is defined the network node selects a plurality of TPs dedicated to serve the UEs 130 located in the hot spot and establishes a coordinated transmission mode from the plurality of dedicated TPs to the UEs located in the hot spot.

Abstract: Aspects of the present disclosure describe determining an uplink channel raster for determining frequency location of an uplink channel over which to transmit uplink communications to a base station. Uplink communications can be transmitted to the base station over the uplink channel. The uplink channel raster can be shifted, in frequency, with respect to a legacy uplink channel raster of a legacy communication technology to facilitate coexistence, in an uplink carrier, of the uplink channel and one or more uplink channels of the legacy communication technology.

Abstract: Aspects of the subject disclosure may include, for example, a system that manages utilization of mobile subscriber identity information including enabling use of such information by different communication devices. The use of the same mobile subscriber identity information by multiple devices can be based on locations and other mobile subscriber identity information can be assigned to devices based on the locations. Other embodiments are disclosed.

Abstract: A method at a user equipment to facilitate splitting of data billing between at least two parties, the method assigning a first subset of application to a first forwarding information base (“FIB”) on the user equipment; associating the first FIB with a first cellular data interface; activating the splitting of data billing on the user equipment; and replacing the association in the first FIB to the first cellular interface with an association between a second cellular data interface and the first FIB.

Abstract: A neutral home network (NHN) may support home-routed traffic between a user equipment (UE) and a network of a mobile network operator (MNO) associated with the UE. The NHN may transmit an access point name (APN) that indicates a public land mobile network (PLMN) identifier (ID) to the UE. If the NHN supports home-routed traffic, the NHN may transmit an APN that indicates an MNO PLMN ID. If the NHN does not support home-routed traffic, the NHN may transmit an APN that indicates an NHN PLMN ID. From the APN, the UE may determine whether the NHN supports home-routed traffic. If the NHN supports home-routed traffic, the UE may transmit a packet data network (PDN) connectivity request to the NHN. If the NHN does not support home-routed traffic, the UE may establish a tunnel to the MNO network through Internet access provided by the NHN.

Abstract: Systems and methods are disclosed for performing online charging for text messages. One embodiment comprises a system that handles a Mobile Originated (MO) text message. The system receives a send request for the MO text message, and generates an online credit request for the MO text message. The system determines a type of originating network for the MO text message, and inserts an indicator of the originating network type in the online credit request. The system may also determine a type of terminating network for the MO text message, and insert an indicator of the terminating network type in the online credit request. The system then transmits the online credit request to an online charging system to charge for the MO text message.

Abstract: Methods and apparatus for congestion mitigation in telecommunications networks. In an exemplary apparatus, a network node (314, 500; 302, 400) in a telecommunications network is provided, the node comprising: a receiver (504; 404) configured to receive congestion data identifying a congested area (A-H) and one or more user equipments, UE, (a-j; 312) affected by the congested area; an alternative network determiner (516; 420) configured to determine one or more switchable UEs, amongst the identified UEs, that may be offloaded to an alternative access network (1-3); and a network switcher (518; 422) configured to control a transmitter (502; 402) to transmit an instruction for one or more of the switchable UEs to switch to an alternative access network.

Abstract: A wireless communication device includes: controlling circuitry configured to selectively switch an operating channel between a first channel and a second channel; and a transmitter configured to transmit a first beacon signal through the first channel at a first cycle and transmit a second beacon signal through the second channel at a second cycle. A first period during which transmission/reception of a signal is possible and a second period during which transmission/reception of a signal is not performed are set for the second channel within a transmission interval of second beacon signals. The controlling circuitry switches the operating channel from the second channel to the first channel during the second period. The transmitter transmits the first beacon signal through the first channel during the second period. The controlling circuitry switches the operating channel from the first channel to the second channel by an end of the second period.

Abstract: Internet, voice calls, and messaging services have become ubiquitous and the means by which the services are accessed varies widely. The number and types of devices that may use these services have also proliferated. To serve a number and variety of client devices, a mobile Hotspot may be used, which is a device that may include a modem for mobile broadband access and a short range wireless link to distribute the services to local devices which may have such connectivity. Power consumption of battery powered client devices is an important consideration. A method and apparatus are disclosed that enable a client device to receive paging information from the mobile networks through a mobile Hotspot over a short range wireless link which may reduce power consumption of client devices.

Abstract: A pico-cell is located within a facility. The pico-cell has a wireless protocol for carrying calls placed to and from mobile devices in the facility. A call distributor is in communication with the pico-cell and handles calls carried by the pico-cell. The call distributor includes an embedded wireless switch for routing calls to and from mobile devices in the facility using the wireless protocol.

Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). A method of operating a terminal and a base station, and a terminal apparatus and base station apparatus, are provided. The method includes receiving a signal including a synchronization sequence and control information, which is transmitted from a neighbor cell, and decoding the control information based on a reception signal strength of the signal.

Abstract: A communications device configured to transmit signals representing data to a first in-coverage communications device acting as source relay node for the communications device, the first in-coverage communications device configured to transmit signals to the infrastructure equipment of the mobile communications network, and to receive signals representing the data from the first in-coverage communications device acting as the source relay node. The source relay node is within a coverage area of the infrastructure equipment of the mobile communications network, the source relay node being configured to transmit the signals representing the data received from the communications device to the infrastructure equipment and to transmit the signals representing the data to the communications device which are received from the infrastructure equipment.

Abstract: Methods, apparatus, systems and articles of manufacture (e.g., physical storage media) to recover subscriber data in mobile communication networks are disclosed. Example subscriber data recovery methods disclosed herein include communicating with mobile devices operating in a mobile network to configure the mobile devices to (1) locally store backup subscriber data corresponding to subscriber data maintained at a first network element to manage access to the mobile network and (2) transmit the backup subscriber data to a destination based on configuration data. Disclosed example methods also include queueing respective backup subscriber data received from respective ones of the mobile devices for transmission to at least one of the first network element and/or a second network element to restore the subscriber data maintained at a first network element.

Abstract: A device may determine that a first wireless local area network (WLAN) connection, established with a first WLAN access point using an extensible authentication protocol, has been dropped. The device may store a pairwise master key identifier, associated with the first WLAN access point, based on determining that the first WLAN connection has been dropped. The device may detect a WLAN signal, associated with the first WLAN access point or a second WLAN access point, after determining that the first WLAN connection has been dropped. The device may provide the pairwise master key identifier to the first WLAN access point or the second WLAN access point based on detecting the WLAN signal. The device may establish a second WLAN connection with the first WLAN access point or the second WLAN access point based on providing the pairwise master key identifier and without re-authenticating using the extensible authentication protocol.

Abstract: A user, identified by a network access identifier (NAI) or other user identifier, uses a communication device, identified by a hostname or other device identifier. An Internet Protocol (IP) address is obtained for the communication device, e.g., when the user logs in for access to a packet-switched network. An association between the IP address and the hostname is registered in a domain name server. An association between the user identifier and the hostname is registered in an RWHOIS server. An application may query the RWHOIS server to determine the hostname of the communication device being used by the user and then query the domain name server to determine the IP address of the communication device.

Abstract: Disclosed are a method and an apparatus for transmitting and receiving measurement information in a mobile communication system. A terminal transmits a connection request message to a network and reports to the network, connection failure-related measurement information when a registered public land mobile network (RPLMN) included in a connection setup message received from the network corresponds to a pre-stored and selected public land mobile network (PLMN) and the connection failure-related measurement information stored with the selected PLMN is available.