62 results about "Public land mobile network" patented technology

The present disclosure provides a communication control method, a terminal device, a network device and a medium, and relates to the technical field of mobile communication. The communication control method comprises the following steps: receiving first public land mobile network (PLMN) list processing indication information sent by a network device of an overlapping area of a shared area and a non-shared area; and in response to the first PLMN list processing indication information, adding or deleting a PLMN identifier of a non-home operator network in a forbidden public land mobile network (FPLMN) list. The present disclosure reduces the network resource overhead of the terminal device and the non-home operator network.

Various solutions for optimal radio access technology (RAT) selection-based voice call fallback in mobile communications are described. The user equipment (UE) may receive a broadcast message from a serving cell. Specifically, the broadcast message is associated with an indication of quality of service (QoS) flow support for Internet protocol (IP) multimedia subsystem (IMS) communication service. Also, the UE may determine whether to initiate an inter-RAT cell or public land mobile network (PLMN) search based on the indication of QoS flow support for IMS communication service. As the voice call fallback can be performed by selecting the optimal RAT, the inefficiency and latency introduced by multiple, sequential fallback attempts can be prevented.

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a message that includes a multi-operator core network (MOCN) frequency indicator that indicates whether an operating frequency is configured with at least one shared cell that is associated with multiple public land mobile network (PLMN) identities. The UE may perform a cell selection or reselection procedure to select a cell associated with the operating frequency based on the cell satisfying a threshold such as a quality threshold. The UE may then select, as part of the cell reselection procedure, a shared cell associated with the operating frequency based on the cell being unavailable for selection based on a PLMN identity associated with the cell, and the MOCN frequency indicator indicating that the operating frequency is configured with the at least one shared cell.

According to one embodiment of this specification, there is provided an operation method of user equipment (UE). The method may comprise: transmitting capability information indicating a support of a minimization of service interruption (MINT)—evolved packet system (EPS); upon selecting a public land mobile network (PLMN), determining whether the UE has a stored disaster roaming wait range; if the UE has the stored disaster roaming wait range, generating a random number within the disaster roaming wait range; starting a first timer based on the generated random number.

In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a mobile station (MS). The MS registers to a first public land mobile network (PLMN) over a first access technology (AT). The MS determines that a received signal quality of the first PLMN over the first AT is lower than the operator controlled signal threshold per access technology. In response, the MS periodically attempts to obtain service on the first PLMN over a second AT. A received signal quality of the first PLMN over the second AT is equal to or greater than an operator controlled signal threshold per access technology.

Methods, architectures, apparatuses, and systems directed to standalone non-public network (SNPN) public land mobile network (PLMN) interworking are described herein. In an embodiment, a wireless transmit / receive unit (WTRU) may send a request message to a first network element of a first network, indicating at least one of (i) a capability of the WTRU to support unified network selection and (ii) one or more second networks. The WTRU may receive a response message from the first network element of the first network, indicating (i) that unified network selection may be supported by the first network and (ii) a list of second networks. The WTRU may select a cell associated with a second network of the list of second networks and send a registration message to a second network element of the second network via the selected cell using credentials that may have been used to register with the first network.

An access network node (12) receives a Non-Access Stratum (NAS) message sent from a User Equipment (UE) (31) and associated with a first Public Land Mobile Network (PLMN) (10). If no control node belonging to a core network (15) of the first PLMN (10) is selectable or available, the access network node (12) forwards the NAS message to a donor control node belonging to a core network (25) of a second PLMN (20). This allows, for example, a core network node belonging to a PLMN different from the PLMN selected by the UE to process the NAS message instead.

Solutions pertaining to adjusted public land mobile network (PLMN) search in mobile initiated connection only (MICO) mode in mobile communications are proposed. An apparatus implemented in a UE activates a MICO mode. The apparatus then postpones a periodic PLMN search in response to the UE being in the MICO mode, with the periodic PLMN search being controlled by a timer.

Systems, methods, apparatuses, and computer program products for simultaneous registration to multiple networks are provided. A user equipment (UE) may perform dual registration to multiple networks, e.g., a 5G system (5GS) of equivalent public land mobile networks (PLMNs), equivalent stand-alone non-public networks (SNPNs), or a combination of PLMNs and SNPNs. When a UE is registered to the first network, the UE may select the second network for a second registration based on one or more criteria.

Disclosed herein are systems, methods, and computer-readable media for enhancements to 5G Access Transport Steering Switching & Splitting (ATSSS) rules. In one aspect, a method includes receiving, at a network controller, a request for a Multi-Access Protocol Data Unit (MA-PDU) session from a user device, the request including a “Multi access multi PLMN” flag for requesting multiple Public Land Mobile Network (PLMN) sessions; generating, at the network controller, an access transport steering switching and splitting (ATSSS) rule for steering traffic associated with the user device between at least two PLMNs once the multiple PLMN sessions are established between the user device and the at least two PLMNs; and sending the steering rule to the user device to be used for splitting uplink network traffic transmitted between the user device and the at least two PLMNs.

This disclosure provides a communication method, a first core network device, a terminal, a second core network device, a communication device, a communication system, a storage medium, and a computer program product. The communication method, executed by the first network device, includes: sending first information to at least one of the terminal and / or the second core network device; wherein the first information is used to indicate at least one of the following: the function of a first list; a first identifier; wherein the first list includes at least one second satellite identifier, the second satellite identifier indicating a satellite; the first identifier indicating a Public Land Mobile Network (PLMN), the PLMN being the PLM accessed by the terminal through the satellite indicated by the second identifier in the first list. This disclosure enables the communication mechanism to adapt to communication after the introduction of satellite access networks.

A system and method are described for supporting permanent roaming for a user equipment (UE) device, which is carried out by a permanent roaming coordinator component, in a mobile wireless network environment including a plurality of public land mobile network (PLMN) carriers within a mobile wireless geographic region. The method includes accessing a current permanent roaming policy applicable to the mobile wireless geographic region within which the UE device resides. The method further includes applying the current permanent roaming policy to establish a current preferred PLMN for supporting a roaming mobile wireless network connection by the UE device, and resetting a usage counter parameter for the UE device in accordance with designating the current preferred PLMN for the UE device. Thereafter, the permanent roaming coordinator component monitors, while the current preferred PLMN supports roaming mobile wireless communications for the UE device, a current status of the usage counter parameter for the UE device.

The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. The present disclosure relates to method and apparatus for managing forbidden tracking areas in communication network. The method comprises receiving, from an access and mobility function (AMF), a reject message including a rejection cause regarding an access to at least one network slice, wherein the UE is camped on a first tracking area of a plurality of tracking areas associated with a public land mobile network (PLMN), and wherein the rejection cause is based on an error indicating unavailability of the at least one network slice in the first tracking area; storing information of the first tracking area in a list of forbidden tracking areas for the UE; and recording the error while storing the information of the first tracking area in the list of forbidden tracking areas for the UE.

[Object] The present disclosure provides a communication device, a terminal device, and communication system to improve availability of network slices. [Solving Means] A communication device according to the present disclosure includes at least one processor and a transceiver. The at least one processor receives, from a terminal device, a first set of identification information regarding at least one first network slice whose registration in a registration area of a home public land mobile network is requested; acquires first information regarding whether to allow registration of the first network slice in the registration area, the first network slice being indicated by the identification information in the first set; and creates, on the basis of the first information, second information regarding a visitor public land mobile network that enables the first network slice to be provided in an area overlapping with at least the registration area.

According to some embodiments, a method in a wireless device includes detecting system information broadcast from a network node. The system information includes a list of NPN identifiers identifying a plurality of non-public networks (NPNs). The method includes selecting a network from the plurality of NPNs and determining an index value associated with the selected network. When the NPN identifier associated with the selected network includes a Closed Access Group (CAG) identifier, the index value is determined based at least in part on a Public Land Mobile Network (PLMN) element, which is included in the list of NPN identifiers in combination with at least one CAG identifier. When the NPN identifier associated with the selected network includes a Network Identifier (NID), the index value is determined based at least in part on the number of NIDs included in the list of NPN identifiers.

The present application describes methods and systems for cell selection and reselection. The apparatus may include a processor that performs the instructions of determining one or more new public land mobile networks (PLMNs) have been selected. The processor is configured to perform scanning radio frequencies for one or more cells in one or more of the selected PLMNs. The processor is further configured to execute the instructions of determining the one or more cells to be an acceptable cell, a suitable cell, not an acceptable cell, or not a suitable cell. The processor is even further configured to execute the instructions of determining a state of the apparatus to be a multi-camped normally state, a reduced power any cell selection state, a reduced power camped on any cell, a camped normally state, an any cell selection state, or a camped on any cell state.

The application discloses an Internet protocol multimedia subsystem service processing method and electronic equipment, and relates to the technical field of communication, and comprises the following steps: an electronic equipment sends an Internet protocol multimedia subsystem (IMS) service request to a public land mobile network (PLMN) where an IMS in a region where the electronic equipment is located; if the IMS service request is the first IMS service request sent by the electronic equipment to the PLMN in the region where the electronic equipment is located, the electronic equipment closes an IMS function of the electronic equipment when an IMS service request response fails; and the electronic equipment closes the IMS function of the electronic equipment in the case that the IMS service request response fails, and the self-recovery of the IMS function can reduce the power consumption of the electronic equipment and avoid the poor experience caused by the abnormal execution of the IMS service.

Techniques pertaining to reenabling satellite capability upon an indication of Internet Protocol (IP) Multimedia Subsystem (IMS) availability in mobile communications are described. A user equipment (UE) determines that an IMS voice service in a public land mobile network (PLMN) and in a satellite mode or satellite access becomes available. In response to the determining, the UE removes the PLMN from a list of PLMNs where the satellite mode or a satellite access capability was disabled because the IMS voice service was not available in the PLMN and in the satellite mode or satellite access.

The disclosure relates to a fifth generation (5G) or sixth generation (6G) communication system for supporting a higher data transmission rate. A method performed by a visited-session management function (V-SMF) in a visited public land mobile network (VPLMN) includes receiving, from an access and mobility management function (AMF) in the VPLMN, a protocol data unit (PDU) session create request message including an indicator for allowing home-routed session breakout (HR-SBO) and an identifier (ID) of the VPLMN after an inter-public land mobile network (PLMN) handover is performed, transmitting, to a home-SMF (H-SMF) in a home PLMN (HPLMN), a PDU session update request message including the ID of the VPLMN and an HR-SBO request message, and receiving, from the H-SMF, a PDU session update response message including an authorization result for the HR-SBO.

This application relates to a cell access control method, a cell access control system, and a readable storage medium. The method involves receiving cell system information broadcast by multiple cells; these cells being located within a preset search range of the terminal; determining a target cell from the multiple cells that meets preset cell selection criteria based on the cell system information and the terminal's corresponding home public land mobile network; initiating a random access request to the target cell; and requesting the establishment of a radio resource control (RRC) connection from the target cell if a random access response based on the random access request is received. This pre-screening process enables the terminal to avoid initiating invalid access attempts to mismatched cells, significantly reducing the probability of random access failure or RRC connection rejection due to improper cell selection, effectively reducing terminal power consumption, and improving user experience.

A method and a system for selecting Non-Terrestrial Networks (NTNs) in communication networks are provided. The method includes prioritizing a random terrestrial network (TN) over other NTNs, changing the scan pattern to accommodate combination of Bands, radio access technologies (RATS), and public land mobile networks (PLMNs), and pre-configuring PLMN priorities at the user equipment (UE).

A method and a system for capability reporting for handling public land mobile network (PLMN)-specific attempt counters in a disaster roaming registration procedure in a wireless communication system are provided. The method includes receiving, by a user equipment (UE), a registration accept message from a PLMN upon, based on initiation of the disaster roaming registration procedure between the UE and the PLMN. Further, the method includes determining, by the UE, whether the registration accept message is for disaster roaming services, based on the registration accept message. Further, the method includes performing, by the UE, one of resetting a PLMN-specific attempt counter for the PLMN, based on the registration accept message being determined to not be for the disaster roaming services, or resetting the PLMN-specific attempt counter of the PLMN for a PLMN determined by the UE as having a disaster condition, based on the registration accept message being determined to be for the disaster roaming services.

Embodiments herein provide a method for managing a priority of Visited Public Land Mobile Networks (VPLMNs) of a wireless communication network. The method includes receiving a registration accept message including steering of roaming (SoR) information from a VPLMN; in response to a security check of the SoR information being failed, adding the VPLMN to a SoR abort list including PLMNs where a registration was aborted due to SoR; and deleting the SoR abort list after a predetermined time period.

Embodiments of the present application disclose a fault alarm method, device and electronic equipment. The method comprises the following steps: a network detection end sends network fault information to a plurality of public land mobile networks (PLMNs) through a network; the PLMNs forward the network fault information to a shared base station; and when the shared base station detects that the network fault information forwarded by a fault PLMN is not received, it is indicated that a terminal corresponding to the fault PLMN cannot learn that the fault PLMN has entered a disaster situation, therefore, the network fault information is broadcast to the terminal corresponding to the fault PLMN, so that the terminal can quickly identify a communication service problem, reduce a terminal network service interruption time, and improve user experience.

According to one embodiment of this specification, there is provided an operation method of user equipment (UE). The method may comprise: if the UE supports a minimization of service interruption (MINT)-evolved packet system (EPS), setting a MINT-EPS bit to “MINT-EPS supported” in capability information; upon selecting a public land mobile network (PLMN) for disaster roaming in an EPS, performing a tracking area update procedure with an EPS update type set to “disaster roaming update”; transmitting the capability information during the tracking area update procedure; receiving a response message.

Methods and apparatuses for establishment of protocol data unit (PDU) session are disclosed. A first network function determines whether a first session management function (SMF) for a PDU session to be established for a terminal device supports insertion / change of a second SMF. When determining that the first SMF for the PDU session does not support insertion / change of the second SMF, the first network function sends, to a second network function, a query request for discovering at least one second SMF that can serve whole public land mobile network (PLMN) to which the first network function belongs. The first network function receives a query response from the second network function.

Methods and apparatuses are disclosed for use in a communication network to implement service-based public land mobile network (PLMN) selection and registration for a user equipment (UE). In one example embodiment, a UE may be configured to implement operations including: determining a service to request from an application; performing a PLMN selection from a service-based PLMN list of a SIM card; and based on the PLMN selection, proceeding with the service with the selected PLMN.

This application provides a communication method and a communication apparatus. In the communication method, when a first operator and a second operator share an access network device, but the access network device needs to interact with a core network device of the second operator through a core network device of the first operator, at least one PLMN identifier that the access network device supports for access of a terminal device includes a first PLMN identifier, so that the access network device can broadcast the first PLMN identifier; and at least one public land mobile network identifier that a first AMF of the first operator supports for access of a terminal device also includes the first PLMN identifier. In this way, a terminal device of the second operator accesses a network.