Abstract: Methods, systems, and devices for wireless communications are described. A wireless device may communicate with multiple beacon devices (e.g., road side beacons), where messages from the road side beacons may be transmitted over a sidelink communications link and may be used to determine a speed and/or location of the wireless device. In some examples, the messages may carry public safety information, location information, navigation information, or other types of information, which may be used, for example, to notify the wireless device of a nearby event, to enable navigation, or the like. When receiving messages from the road side beacons, the wireless device may report a status to a base station, which may determine a relationship between transmissions from the wireless device and predict future transmissions based on the relationship. As a result, the base station may modify communications parameters in accordance with the status of the wireless device.

Abstract: A method executed by a User Equipment (UE) for emergency call handling during a de-registration or detach procedure is provided. The UE initiates a Mobility Management (MM) de-registration procedure or an MM detach procedure with a mobile communication network. The UE initiates an emergency service before the MM de-registration procedure or the MM detach procedure has been completed. In response to the initiation of the emergency call, the UE aborts the MM de-registration procedure or the MM detach procedure and performs local de-registration or local detach. After the local de-registration or the local detach, the UE initiates a registration procedure or an attach procedure.

Abstract: Aspects of the present disclosure provide an environmental probe configured to be at least partially inserted into the ground at a location and to provide defensible space monitoring and maintenance for a home or other structure. The environmental probe may include one or more environmental sensors configured to perform various environmental measurements to generate environmental measurement data. The environmental probe (e.g., a processor of the environmental probe) may compare the environmental measurement data to one or more thresholds to determine an alert state associated with the location. The environmental probe may include one or more wireless interfaces configured to enable communication with a remote device, such as a smart hub device or other environmental probes. The environmental probe may transmit an indicator of the alert state to the remote device to enable performance of one or more operations based on the alert state.

Abstract: An electronic device may transmit a communication request to a base station having an indication of a number of its receive branches and an indication of whether the communication request is designated as an urgent service fulfillment. The base station may delay a denial of the communication request until receiving the indication of whether the communication request is designated as using the urgent service fulfillment to reduce a likelihood of prematurely rejecting the communication request. The base station may also handover the communication request to a base station that supports the urgent service fulfillment. The base station may also be barred from transferring the user equipment to a frequency layer preferred by the base station when the communication request of the user equipment is designated as an urgent service fulfillment.

Abstract: An electronic user device includes inclusion list storage with electronically readable memory, for storing an inclusion list and the inclusion list indicating included logical IDs. The device also has a security module app that receives a cellular broadcast message and extracts logical IDs therefrom. This processes a targeted cellular broadcast message embedded in the payload of the cellular broadcast message, based on whether a logical ID, also embedded in the payload, of the targeted cellular broadcast message is on the inclusion list. It then formats it for consumption by an electronic user device app that receives data via a data channel when available.

Abstract: A method of improving user experience for initial IP Multimedia Subsystem (IMS) registration is proposed. When a UE boots up or leaves flight mode, the processor of the UE determines a period Tn of time for IMS PDN initial setup on a single Access-Stratum Network, starting from sending IMS PDN setup request. Upon expiration of Tn, the UE aborts the IMS PDN set up request, and performs IMS PDN set up on another Access-Stratum Network. As a result, it allows the UE to rapidly use IMS service when boots up or leaves flight mode.

Abstract: A method comprising transmitting, by a user equipment (UE) to a network node, a registration message comprising at least one of a first indicator configured to indicate emergency call information display capability, a second indicator configured to indicate language information, or a third indicator configured to indicate a status of previously received emergency information, and receiving, by the user equipment from the network node, a registration accept message.

Abstract: Various embodiments include methods and systems for vehicle-to-everything (V2X) system of a vehicle for managing transmission of misbehavior reports. Various embodiments may include generating a misbehavior report based on a detected V2X misbehavior, assigning a priority or a transmission probability to the generated misbehavior report based on an external condition related to the detected V2X misbehavior, and transmitting the misbehavior report based on the assigned priority or transmission probability.

Abstract: In some implementations, an internet protocol multimedia subsystem (IMS) may receive a device identity of the user device as part of an emergency call. The IMS may transmit the device identity to an emergency call server (ECS). The IMS may receive, from the ECS, a subscriber identity of the user device. The IMS may transmit the subscriber identity to a public safety answering point (PSAP) through a next generation core services (NGCS) network that uses a Stir and Shaken protocol. The emergency call is then established with a true subscriber identity of the user device.

Abstract: A method for cellular network outage detection including monitoring error rates associated with a network node of a cellular network for a first predetermined time period. The method includes determining a first baseline error rate for the network node based on the plurality of first error rates for the first predetermined time period, and determining a first threshold error rate for the network node based on the first baseline error rate for the network node. The method includes monitoring a plurality of second error rates associated with the network node for a time period subsequent the first predetermined time period, and detecting an excessive error rate of the plurality of second error rates associated with the network node, where the excessive error rate exceeding the first threshold error rate. The method includes, in response to detecting the excessive error rate, automatically executing a predetermined override rule.

Abstract: A solution for handling network congestion includes: attempting, by a user equipment (UE), to initiate a data session (e.g., a voice over WiFi (VoWiFi) call) over a packet data network (PDN); receiving, by the UE, a notification of network congestion; based on at least a fast retry timer and a fast retry counter, attempting, by the UE, fast retries up to a maximum number of fast retries at a fast retry time interval; and based on at least none of the initial attempt and the fast retries initiating the data session, attempting, by the UE, slow retries at a slow retry time interval until the data session is initiated or a trigger condition halts the slow retries. In some examples, the UE receives a retry parameter set from the network including the maximum number of fast retries, the fast retry time interval, and the slow retry time interval.

Abstract: The present disclosure provides a method for determining an allocation scheme of accident rescue resource in a smart city. The method comprises: obtaining accident information of an accident point based on the object platform; sending the accident information to the management platform based on the sensor network platform; determining resource demand of the accident point based on the accident information through the management platform; obtaining available resource of at least one candidate rescue point based on the object platform; sending the available resource to the management platform based on the sensor network platform; determining the allocation scheme of rescue resource based on the resource demand and the available resource through the management platform; and sending the allocation scheme of rescue resource to the user platform through the service platform.

Abstract: The present disclosure generally relates to the field of security context setup. More specifically, the present disclosure relates to techniques of supporting security context setup in a wireless communication network. A method embodiment relates to supporting security context setup in a wireless communication network, the method comprising initiating (S304), by a radio access network (RAN) element of the wireless communication network, Access Stratum (AS) security context setup for a first Radio Access Technology (RAT) and a second RAT in a common signaling procedure.

Abstract: There is provided a method and device for provisioning emergency number information on a user equipment. When a dialed number matches an emergency number from the provisioned emergency number information, the user equipment selects either the circuit switched domain or the packet switched domain and executes a call setup procedure for that domain.

Abstract: The present specification proposes a method for transmitting or receiving emergency information in a wireless communication system supporting machine type communication and a device therefor. Specifically, the method performed by a terminal may comprise the steps of: receiving discontinuous reception (DRX)-related information from a base station through radio resource control (RRC) signaling; receiving a paging message from the base station on the basis of the DRX-related information; and transmitting a physical random access channel (PRACH) preamble to the base station on the basis of the paging message emergency.

Abstract: A portable device with integrated functions related to health, safety, and security is provided. The portable device includes a memory, a battery, a global positioning sensor (GPS), and an accelerometer. The portable device further includes a touch screen that is configurable to be in a locked state and an unlocked state. The portable device can operate in at least two different power modes and can operate a messaging functionality. The portable device can automatically coordinate with the messaging functionality to prepare for transmission a message to one or more contacts of the user for use in case of an emergency, including the current location of the portable device, in response to information received by the at least one processor, even when the touch screen is in a locked state, based on an input sequence indicative of an emergency event entered by a user of the portable device.

Abstract: Methods, devices, and systems are provided for transmitting emergency communications. For example, an emergency communication device may comprise a subscriber identity module (SIM) card, a sensor, a processor, and a memory that stores executable instructions that perform operations when executed by the processor. In some aspects, the device comprises at least three buttons that cause a transmission of an emergency communication to an emergency response server or preprogrammed contact. In response to the sensor of the device detecting a button being pressed, a location service, which determines the location of the device based on the SIM card, is initiated. Accordingly, the device causes the transmission of the emergency communication comprising the location of the device. Further, the emergency communication to the emergency response server may also comprise medical information associated with a user of the user device.

Abstract: Techniques for determining a location of a roaming device on a host telecommunications network are described herein. The host telecommunications network can implement a location server to determine a geographical location of a user equipment (UE) that generates an emergency message to an emergency service center. The location server can exchange data representing device information, network information, or user information with a subscriber server of a home telecommunications network, and use the data to initiate determination of the geographical location. The location server can initiate, establish, maintain, or otherwise determine a geographical location of the UE for sending to the emergency service center (e.g., to enable the UE to exchange text communications with a Public Service Answering Point).

Abstract: A method that includes a policy function transmitting to a depository function a request for information; and the policy function receiving a response to the request, wherein the response comprises: a usageMonDataLimit instance comprising a limit identifier; and a usageMonData instance corresponding to the usageMonDataLimit instance, wherein the usageMonData instance also comprises the limit identifier.

Abstract: Medical emergency detection, decision-making, and support are triggered based on location of the user, and protective health documents and other information supporting the user's desired health outcomes are notified and delivered for health care use. When the user's entry into a patient care facility is detected via geofencing or another method such as beacons, and an emergency state is auto detected and/or user declared, alert notifications are triggered. The user's emergency contact information, medical history and other relevant information may be shared with emergency care personnel. Also, the user's emergency contacts and others in the user's care circle may be notified and provided instant online access to the user's protective health documents and other content provided by the user. The access to content to entities and individuals can be based on permission rights the user has predetermined.

Abstract: A system and method for using wireless location of mobile communication units for identifying and allocating resources for access by users of such mobile communication units via bringing the user and such a resource together. Such a user may be routed to such a resource even though the resource cannot be reserved for user access. A resource allocation priority between users mitigates a user not being able to access the user's allocated resource, e.g., due to another user accessing the resource. The resources can be, e.g., a parking space, public transportation (e.g., bus, train, taxi), seating at an open admission event, accessing a theme park ride, and the like. By wirelessly locating the user's mobile communication unit, the user may be navigated to such a user allocated resource.

Abstract: A method of initiating handover of a wireless device includes determining one or more of a low battery condition, a low power headroom, and a high buffer status of a wireless device. The wireless device can be attached to a first access node deploying multiple radio access technologies over a first coverage area. The method further includes identifying a second access node deploying a single radio access technology over a second coverage area encompassing a location of the wireless device, and initiating handover of the wireless device from the first access node to the second access node based at least in part on the one or more of the low battery condition, low power headroom, and high buffer status of the wireless device. Systems and devices relate to initiating handover of a wireless device.

Abstract: Various systems and methods are provided comprising: a building including one or more facilities each including at least one broadcast short-range communications unit having a fixed location, an application/computer code configured for execution by at least one of a plurality of mobile devices, and at least one server, that, together, are configured to cooperate to trigger one or more mobile device actions including causing to be output visual information, based on particular location-relevant information that is, in turn, based on at least one value.

Abstract: The gateway device (10) according to the present disclosure includes a communication unit (11) that receives SNPN identification information to be used for identifying a SNPN from a SNPN core network device deployed in the SNPN and transmits emergency information to the SNPN core network device after receiving a distribution message for requesting for distributing the emergency information via a network operated by a communication carrier, and a distribution control unit (12) that selects, when receiving the distribution message, at least one piece of SNPN identification information from among a plurality of pieces of SNPN identification information received from a plurality of the SNPN core network devices. The communication unit (11) transmits the emergency information to the SNPN core network device deployed in the SNPN identified by the selected SNPN identification information.

Abstract: A mobile announcement system distributed on one or more servers operably coupled to one or more client computing devices and one or more service provider computing devices and one or more mobile announcement devices by a public network which supports a mobile announcement program accessible by browser based on-line processing or downloadable by the client computing devices or the service provider computing devices to establish on-line or off-line wired or wireless connection with one or more mobile announcement devices which operate based on pre-selected announcement conditions to make visual or audio announcements.

Abstract: The present disclosure relates to a user equipment, a base station, and uplink transmission and reception methods. The user equipment comprises a transceiver which, in operation, receives an indication indicating a priority level to be enforced, and circuitry which, in operation, compares a priority level of a first uplink transmission with the indicated priority level to be enforced, the first uplink transmission being granted to the UE prior to scheduling of a second uplink transmission allocated to resources overlapping with resources allocated to the first uplink transmission, wherein the transceiver, in operation, performs the first uplink transmission based on a result of the comparison.

Abstract: A system for Vehicle-to-Everything (V2E) communication includes servers configured to communicate over a Wide Area Network with one local signaling device of a vehicle in a real-time or near real-time. The servers are further configured to register the local signaling device of the vehicle to utilize third-party provided functions provided by third party devices or sensors coupled to, or operating on a same Local Area Network as, the local signaling device, the third-party devices or sensors selectable by a registering entity from a plurality of third-party devices or sensors. The registration includes configuring predefined steps to be taken by the servers in connection with the third party-provided functions of the third-party devices or sensors. The servers are further configured to receive a communication signal from the local signaling device of the vehicle, and in response to receiving the communication signal, execute the predefined steps.

Abstract: Systems and methods for sending a voice clip as a short message service (SMS) message in place of a voicemail providing include a provider device including an options screen, a cell site, and message management circuitry communicatively coupled to the cell site and a contact center. The provider device is structured to call a receiving device. If the provider device fails to receive an answer, the user of the provider device is presented with multiple options: leave a video recording in a text message, leave the voice clip in a text message, transcribe voice clip to text message, or leave a voicemail. The user of the provider device then selects one of the multiple options on the provider device. The provider device then transitions from a dialer to a message application and delivers the message to the receiving device.

Abstract: The wireless communication apparatus is a wireless communication apparatus mounted on a vehicle and supports a plurality of emergency report schemes. The wireless communication apparatus includes a wireless communicator configured to perform wireless communication, and a controller configured to perform an emergency report via the wireless communicator at a time of occurrence of a vehicle accident. The controller is configured to identify a region to which the wireless communication apparatus belongs at the time of occurrence of the vehicle accident. The controller is configured to select one emergency report scheme from the plurality of emergency report schemes based on the identified region. The controller is configured to perform the emergency report by using the one emergency report scheme selected.

Abstract: Systems and methods are provided for secure messaging with constrained user actions. An example method includes causing presentation of an interactive user interface, the interactive user interface enabling messaging with end users, each end user being associated with a respective phone number. Selection of a particular end user is received via the interaction user interface and the interactive user interface is updated to include a selectable option which triggers transmission of a standardized consent message to a particular phone number associated with the particular end user. A reply message is received from the particular phone number indicating the affirmative consent. The interactive user interface is updated, with the updated interactive user interface including an input portion configured to receive arbitrary information for transmission to the particular phone number.

Abstract: An example according to the present specification relates to a method for performing low latency communication. A transmission STA and a reception STA may exchange a low latency communication request frame and a low latency communication response frame. The low latency communication request frame may include first information for performing the low latency communication. The first information may include at least one among information for requesting parameters for the low latency communication and information about traffic. In addition, the low latency communication response frame may include second information for performing the low latency communication. The second information may include information about the parameters for the low latency communication. The reception STA and the transmission STA may perform the low latency communication with the transmission STA on the basis of the first information and the second information.

Abstract: An electronic device includes a communication unit and a control unit. The communication unit performs authentication communication to authenticate an external device connected to the electronic device. The control unit sets a time limit of the authentication communication to a predetermined time in a case where the external device is a first device. The predetermined time is a time that is longer than a time required for authentication communication between the first device and the electronic device, and is shorter than a time required for authentication communication between the electronic device and a second device different from the first device.

Abstract: A method at a user equipment for obtaining emergency codes using a non-Third Generation Partnership Project (3GPP) network, the method including sending a request message to a network node, the request message containing an indication; and receiving, at the user equipment, a response message, the response message including at least one mobile country code (MCC), and the response message indicating an emergency number, type or category information, wherein the emergency number, type or category information is associated with the at least one MCC, and wherein the at least one MCC indicates a portion of a Public Land Mobile Network (PLMN) code to which the emergency number, type or category information applies.

Abstract: In an embodiment, a method for support of emergency services over WLAN access to 3GPP Evolved Packet Core EPC for unauthenticated Users includes, in response to a request to provide a user identity for access authentication, a User Equipment UE providing a specific NAI-based user identity having a realm part indicating unauthenticated access for emergency services. Also includes an authenticator, such as TWAN entity for Trusted WLAN access or ePDG for Untrusted WLAN access, routing a message from said UE, based on said realm part, towards a specific 3GPP AAA Server serving a domain dedicated to unauthenticated access for emergency services, the specific 3GPP AAA Server granting access to the UE, and providing specific authorization data that allow network access for emergency services to the UE.

Abstract: Systems and methods that provide NAS security protection for mobile networks. In one embodiment, a network element of a mobile network performs a NAS procedure in multiple phases to establish a NAS communication session with User Equipment (UE) when no NAS security context exists. For a first phase, the network element receives an initial NAS message from the UE populated with a subset of NAS protocol Information Elements (IEs) designated for security-related handling, selects a NAS security algorithm for the NAS security context, and sends a response to the UE that indicates the NAS security algorithm. For a second phase, the network element receives a subsequent NAS message from the UE having a NAS message container that contains the initial NAS message populated with each of the NAS protocol IEs for the NAS procedure, and decrypts the NAS message container of the subsequent NAS message using the NAS security algorithm.

Abstract: Described herein are systems, devices, methods, and media for facilitating emergency communications by an emergency management system. In one embodiment, a method for facilitating emergency communications comprises: identifying a user potentially affected by an emergency; providing an emergency response message to a communication device associated with the user; receiving confirmation of the emergency; in response to receiving confirmation of the emergency, initiating an autonomous communication session with the user through the communication device; extracting emergency information from the autonomous communication session; and providing the emergency information to an emergency service provider (ESP).

Abstract: Methods and devices for encoding a point cloud. A current node associated with a sub-volume is split into further sub-volumes, each further sub-volume corresponding to a child node of the current node, and, at the encoder, an occupancy pattern is determined for the current node based on occupancy status of the child nodes. A probability distribution is selected from among a plurality of probability distributions based on occupancy data for a plurality of nodes neighbouring the current node. The encoder entropy encodes the occupancy pattern based on the selected probability distribution to produce encoded data for the bitstream and updates the selected probability distribution. The decoder makes the same selection based on occupancy data for neighbouring nodes and entropy decodes the bitstream to reconstruct the occupancy pattern.

Abstract: A method and system of providing guidance and information to an end-user during an emergency situation. A network of one or more enrolled devices can obtain infrared data that will be used by the system to determine whether there is a high likelihood of a fire in a building. When an emergency situation such as a fire is detected, alerts can be generated at the enrolled devices that provide navigation cues based on user preferences and suggested evacuation routes to safely guide the end-user to the nearest designated exit.

Abstract: The disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. A system and a method to handle media transmission in the Mission Critical (MC) systems or MC Video system are provided. According to the system and the method, wastage of network resources can be avoided and other participants in the group can be given chance to transmit important data as maximum number of transmissions at a time in a group call are limited by network capacity. Accordingly, efficiency of the MC Video system can be improved.

Abstract: A device may receive application data associated with transaction applications of client devices and transaction card data associated with transaction cards. The device may receive geographical data identifying a geographical area associated with users of the client devices and the transaction cards. The device may determine, based on the application data, the transaction card data, and the geographical data, location data identifying geographical locations of the users in the geographical area. The device may determine, based on the location data, quantity data identifying quantities of the users located on multiple paths of the geographical area. The device may process the geographical data, the location data, and the quantity data, with a machine learning model, to identify a path with less than a threshold quantity of users in the geographical area. The device may perform one or more actions based on the path.

Abstract: Aspects of the subject disclosure may include, for example, assessing a priority of a particular user at a service area in a mobile communications network for a strong radio signal from a cell site of the mobile communications network, and providing the strong radio signal to a mobile device of the particular user according to the priority of the particular user, wherein the providing the strong radio signal comprises focusing an antenna beam of a beamforming antenna at the service area and assigning the antenna beam to the particular user for downlink communication between the cell site of the mobile communications network and the particular user. Other embodiments are disclosed.

Abstract: An electronic device and method for emergency alert message detection based on audio-video information is disclosed. The electronic device receives first media content received over a first broadcast channel. The electronic device renders second media content, which is different from the first media content. The electronic device further detects, from the received first media content, a set of objects associated with a geo-location corresponding to the electronic device. The set of objects corresponds to an emergency at the geo-location. The electronic device further detects an emergency alert audio in the received first media content. The electronic device further extracts an emergency alert message received over a second broadcast channel associated with the geo-location based on the detected set of objects and the emergency alert audio in the received first media content. The electronic device further renders an emergency alert signal associated with the emergency alert message.

Abstract: In some examples, a system includes a plurality of articles of personal protected equipment (PPE) that are each assigned to a particular worker. The system may also include a data hub that detects an input that initiates a broadcast of diagnostic self-check messages; identifies, in response to the input, each article of PPE of the plurality of articles of PPE; broadcasts, based on identifying each article of PPE, the diagnostic self-check messages to the respective articles of PPE, wherein each article of PPE receives its respective self-check message at its communication component; in response to receiving a set of diagnostic acknowledgement messages from one or more of the plurality of articles of PPE that have performed a diagnostic self-check, determines whether the set of diagnostic acknowledge messages satisfy one or more self-check criteria; and performs one or more operations based on whether the self-check criteria are satisfied.

Abstract: A method, system and computer program product for cross-device interaction, the method comprising: intercepting a triggering event by a mobile client application program; employing a low energy communication monitoring service adapted for searching at least one universally unique identifier advertised by a low energy communication advertisement service configured to enable retrieval of a content identifier associated with content received from a server and being displayed by a television client application program, retrieving using the at least one universally unique identifier the content identifier, and providing the content identifier to the mobile client application program; and, responsive to receiving notice on intercepting a user interaction event by a user interaction event listener, presenting by the mobile client application program an information item retrieved using the content identifier provided.

Abstract: An imaging apparatus includes an operation member, a setting unit configured to set the operation member to an enabled state or a disabled state a switching unit configured to switch an image capturing mode to a medical mode, and a control unit configured to perform, in a case where the image capturing mode is not the medical mode, control to allow the setting unit to set the operation member to the enabled state or the disabled state, and perform, in a case where the image capturing mode is the medical mode, control to set the operation member to the enabled state.

Abstract: A computer-implemented method for monitoring a condition of a person includes receiving, at a computerized device, at least one signal from a condition sensor and determining if a condition is an emergency condition of a user based on the at least one signal.

Abstract: A system, device, and method for discouraging a user from making hand-to-face contact. The system and device includes at least one hand component and at least one head/face component. The system and device monitor to determine if the hand component is within a selected distance of the head/face component. When the hand component is brought with a selected warning distance of the head/face element, indicating that the user is bringing his/her hand toward the user's face, a warning alarm is activated which cautions the user to cease moving the hand toward the face.

Abstract: Methods and systems for a query selection system are provided. The methods and systems include operations comprising: accessing a database comprising a plurality of data inquiries, a data inquiry of the plurality of data inquiries being associated with inquiry metadata including a data type, a data inquiry, a plurality of data responses, and display data; accessing a query definition group, the query definition group defining a plurality of data types to include in a data inquiry prompt; accessing historical query selection information representing one or more data inquiries of the plurality of data inquiries previously presented to one or more users; configuring, based on the query definition group and the historical query selection information, a set of the plurality of data inquiries; and generating the data inquiry prompt based on the configured set of the plurality of data inquiries.

Abstract: The present disclosure describes systems and methods for secure communication over multiple secure paths through an intelligent and dynamic gateway capable of receiving and processing communications received from multiple paths, protocols, physical spectrums, or sources and processing such inputs using software (e.g., middleware or one or more virtual machines (VMs)) to generate wide area network (WAN) output that can, in turn, be transmitted to multiple paths, irrespective of protocol, physical spectrum, or destinations. As such, the current gateway can be configured to be agnostic to the nature of input or output technologies and manage the conversion of data for ubiquitous telecommunications management.

Abstract: Emergency services support is indicated to roaming devices in a wireless network. A user equipment (UE) may receive a message from the wireless network indicating at least one public land mobile network (PLMN) that provides emergency services support for devices in limited service. The UE may store, in a non-volatile memory (NVM), an identifier of the at least one PLMN in a whitelist of limited service emergency services support. In response to a trigger in a roaming limited service condition of the UE, the UE may establish an emergency session with a selected PLMN based on the whitelist of limited service emergency services support.