2089 results about "Mobility management" patented technology

Techniques are provided for managing the provisioning of voice services to a user equipment (UE) in a fifth generation (5G) network. For example, the UE generates a registration request message that includes 5G mobility management (5GMM) capabilities of the UE that are indicative of whether the UE supports voice over internet protocol multimedia subsystem (IMS), and transmits the registration request message to a next generation radio access network (NGRAN) node in the 5G wireless network. Based on the 5GMM capabilities, the NG-RAN node can determine whether voice over IMS can be provided to UE by comparing the 5GMM capabilities to capabilities of the NG-RAN node.

There is a new market requirement that a network slice needs to be deployed in area that does not overlap with the already deployed Tracking Areas and / or has a limited lifetime. As the latest 3GPP specification cannot fulfil the new market requirement, 3GPP specifications need to be enhanced.A method of a communication apparatus includes receiving Single Network Slice Selection Assistance Information (S-NSSAI), first information indicating where the S-NSSAI is valid and second information indicating when the S-NSSAI is valid. The method includes sending the S-NSSAI, the first information and the second information.

A method includes sending, by a user equipment (UE), a registration request message to a mobile communication network, the message including a core network capability indication that the UE supports partial registration of at least one network slice that is not available within all of the tracking areas in a registration area. The method includes, receiving, from the mobile communication network, a mobility management message having parameters for (i) one or more allowed network slices supported by each tracking area of the registration area, and (ii) a partial network slice registration identifying at least one local network slice that is supported in at least one, but not supported within all of the tracking areas. The method includes configuring the UE to use the local network slice of the partial network slice registration when the UE is located in the tracking area supporting the local network slice.

A base station receives, from an access and mobility management function (AMF), a first message to configure reporting of user plane congestion associated with a network slice. The base station sends, to a network node, information of the user plane congestion associated with the network slice.

The Policy Control Function (PCF) provides UE policy (e.g. URSP, ANDSP, V2XP) to a UE supporting the S1 and N1 mode when the UE is registered in the 5GS. In addition, the UE policy is also used while the UE is registered to the EPS. In current 3GPP specifications, there is no procedure defined for sending the UE policy to the UE when the UE is attached to the EPS. In absence of the UE policy, user data from the UE cannot be routed properly when the UE is registered to EPS. A method of a User Equipment (UE) includes sending, to a Mobility Management Entity (MME), a first message including information to obtain a UE policy, and receiving, from the MME, a second message including the UE policy.

The invention relates to a resource allocation system for 5G-A Internet of Vehicles network slices, which belongs to the technical field of intelligent traffic systems and comprises a network slice architecture module, a management and control plane module, a programmable module, a safety and fault-tolerant module, a performance monitoring and optimizing module, a mobility management module, a resource arbitration engine and a cross-domain collaborative interface. And the network slice architecture module is used for dividing Internet of Vehicles communication into a plurality of virtual slices based on a 5G-A network slice technology. According to the resource allocation system and method oriented to the 5G-A Internet of Vehicles network slices, accurate control over end-to-end performance indexes is achieved through the slice definition template library and a QoS dynamic mapping mechanism, the problem that key service performance is degraded due to one-step resource allocation of a traditional network is solved, distributed agent collaboration based on the MAPPO algorithm, and the resource allocation efficiency is improved. LSTM load prediction and a heuristic time delay equalization algorithm are combined, so that the system can respond to business demand changes at a millisecond level, and the resource utilization rate is improved.

A wireless device receives, from an access and mobility management function (AMF) in a first non-access stratum (NAS) message, parameters comprising a reporting configuration for a deterministic network (DetNet) node. The wireless device sends, to the AMF and based on the parameters, a second NAS message comprising a report for the DetNet node.

The present disclosure describes methods, system, and devices for performing network slice replacement during user equipment (UE) mobility. The method includes receiving, by a radio-access network (RAN), a list of to-be-switched protocol data unit (PDU) sessions during a handover procedure; selecting, by the RAN, a single-network slice selection assistant information (S-NSSAI) from a list of S-NSSAIs, the S-NSSAI corresponding to a PDU session in the list of to-be-switched PDU sessions; and sending, by the RAN, a message to an access and mobility management function (AMF), the message comprising the PDU session in a list of PDU sessions that require slice replacement and the S-NSSAI associated with each PDU session.

The present disclosure relates to selecting a Local Management Function (LMF) in a wireless communication network, a next generation Radio Access Network (NG-RAN) acquires a capability from a user equipment (UE), the capability indicating whether the UE is capable of supporting LMF in Radio Access Network (RAN). An access and mobility management function (AMF) is then notified whether the UE is capable of supporting LMF in RAN. An LMF selection is then received from the AMF. Then a response is transmitted to the UE based on the received LMF selection, the response indicating whether a positioning procedure to be carried out by the UE is based on LMF in RAN. In this manner, the capabilities of the UE are taken into consideration when selecting an LMF for a positioning procedure.

A method of wireless communication includes transmitting, by a wireless device to an access and mobility management function, a first message requesting a protocol data unit (PDU) session establishment, the first message including application related information identifying a target application of the wireless device; and receiving, by the wireless device from the access and mobility management function, i) a second message accepting the protocol data unit session establishment, the second message including supported application information, or ii) a third message rejecting the protocol data unit session establishment and including an identification (ID) of an existing PDU session to allow the wireless device to reuse the existing PDU session for the target application.

Provided are a network registration method for traffic transmission and a device supporting same. A user equipment (UE) performs a first registration procedure over a first non-3rd generation partnership project (non-3GPP) connection, and transmits a registration request message of a second registration procedure to an access and mobility management function (AMF) over a second non-3GPP connection. The registration request message includes: (i) information about connection switching from the first non-3GPP connection to the second non-3GPP connection; and (ii) information about a multi-access (MA) protocol data unit (PDU) session related to the connection switching. Upon receiving the information, the AMF transmits information about the connection switching from the first non-3GPP connection to the second non-3GPP connection to a session management function (SMF).

A computer system, computer readable storage medium, and computer-implemented method for enhancing geospatial mobility management of unmanned aerial vehicles (UAVs). The method includes generating a mapping between a UAV designator and a plurality of geospatial region designators. The method also includes instantiating a network slice. The network slice is associated with the UAV designator and the plurality of geospatial region designators. The method further includes generating a flight path for a UAV through a plurality of geospatial regions that is at partially determined subject to the network slice and the plurality of geospatial region designators. The method also includes executing a transit of the UAV through the flight path.

A system described herein may receive a first indication that a particular User Equipment (“UE”) has been reported as lost or stolen. The first indication may be received via an interface with an Equipment Information Repository (“EIR”). The system may output, to an access function (e.g., an Access and Mobility Management Function (“AMF”)) of a network to which the UE is connected, a second indication that the UE has been reported as lost or stolen. The access function of the network may modify access of the particular UE to the network based on the indication that the particular UE has been reported as lost or stolen, and / or may output, to the UE, a third indication that the UE has been reported as lost or stolen. The UE may perform further security-related measures, such as disabling one or more applications, performing a factory reset, or entering a restricted mode.

The invention provides a roaming place dynamic signing method, device and equipment under a 5G network and a medium, and relates to the technical field of communication. The method comprises: acquiring a target data network identifier, the target data network identifier being issued by an access and mobility management function network element after a user equipment initiates a session request to the access and mobility management function network element in a core network, the user equipment completes private network service signing in the roaming place and is located in a private network service area of the roaming place; determining a private network distribution rule matched with the target data network identifier; and issuing the private network offloading rule to a user plane function network element in the core network, the private network offloading rule being used for the user plane function network element to establish an offloading session with the user equipment, and the offloading session being used for the user equipment to access a private network provided by the private network service in the private network service area. According to the method and the device, the problem that foreign users cannot conveniently access private network services provided in a private network area range of a visited place can be solved.

A wireless device sends, to an access and mobility management function (AMF), a packet data unit (PDU) session establishment request comprising an indication for a multimedia priority service (MPS). The wireless device receives, from the AMF, an establishment indication of the PDU session.

A method, apparatus and computer readable medium for locating a target User Equipment. The target UE is located by: receiving a position request transmitted by a position request device, where the position request includes a list of observer UEs and an allowed delay; requesting a ranging service from observer UE, where the ranging service is configured to enable observer UE to range on target UE; obtaining a ranging result transmitted by a current service access and mobility management function (AMF) corresponding to first observer UE, where the ranging result includes relative positions between the first observer UE and the target UE; transmitting a first location request to the current service AMF corresponding to the first observer UE; and obtaining position information, transmitted by the current service AMF corresponding to the first observer UE, of the target UE.

The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method by an access and mobility management function (AMF) in a wireless communication system, according to an embodiment, may comprise, when processing at least one protocol data unit (PDU) session included in a network slice for service continuity, determining a PDU session to be released in the network slice among the at least one PDU session and transmitting a release request message including a PDU session identifier corresponding to the PDU session to be released in the network slice to a session management function (SMF).

The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method performed by an access and mobility management function (AMF) in wireless communication system, the method comprising: receiving, from a user equipment (UE), an uplink non-access stratum (UL NAS) transport message including a payload container type information element (IE) set to N1 SM information and a request type IE indicating initial request; and identifying that a single network slice selection assistance information (S-NSSAI) IE is not included in the UL NAS transport message.

The present disclosure relates to a 5G or 6G communication system for supporting higher data transmission rates, and pertains to an operation method of a user equipment (UE). The operation method comprises the steps of transmitting a registration request message including a traffic category support indication to an access and mobility management function (AMF) via an access node, receiving, from the AMF via the access node, a UE configuration update message including UE route selection policy (URSP) rules determined on the basis of the traffic category support indication and first traffic category mapping information, and determining a protocol data unit (PDU) session for application traffic on the basis of the URSP rules and pre-stored second traffic category mapping information.

A user equipment (UE) mobility management method executable by a UE. The UE receives configuration of UE-based mobility management and transmits artificial intelligence (AI) / machine learning (ML) model-inferred one or more parameters of UE-based mobility management based on the configuration to assist a handover operation of the UE. The one or more parameters comprise UE-predicted UE trajectory of the UE.

A method for supporting non-public network (NPN), by a first central unit (CU) of a first base station, in a wireless communication system, the method comprising: receiving, from a first distributed unit (DU) of the first base station, an F1 setup request comprising at least one of a first closed access network (CAG) identifier list or a first network identifier (NID) list, transmitting, to an access and mobility management function (AMF), an NG setup request comprising at least one of the first CAG identifier list or the first NID list, receiving, from the AMF, an NG setup response, and transmitting, to the first DU, an F1 setup response.

A wireless device sends, to a mobility management node via a base station of a satellite network, an indication of support for a store and forward (S&F) mode of operation. The wireless device receives, from the mobility management node, a de-registration timer parameter for the S&F mode.

An access network device receives first information from an access and mobility management function network element. The first information carries a data size of downlink data of a terminal device buffered in a user plane function network element or a session management function network element, the terminal device is in an inactive state, and an extended discontinuous reception cycle is configured by the access network device for the terminal device. The access network device determines, based on the data size of the downlink data, that the downlink data is small data. The access network device sends a first indication to the terminal device, to indicate the terminal device to perform small data transmission, and a second indication to the user plane function network element, to indicate the user plane function network element to send the small data to the access network device.

The invention provides a network side mobility management method and device, a gateway, a network management server and a base station, and relates to the technical field of communication. The method is applied to a gateway, and comprises the following steps: receiving a first switching request sent by core network equipment; the first switching request carries a first cell code corresponding to the target small base station group and identification information of a source macro base station; obtaining a small base station list under the coverage of the source macro base station according to a neighbor relation information table between the macro base station and the small base station; determining a target small base station corresponding to the first cell code from a small base station list covered by the source macro base station; sending a second switching request to the target small base station; the second switching request carries switching access dedicated resource group information; receiving a switching request confirmation message sent by the target small base station; and sending a first switching signaling to a core network device, wherein the first switching signaling carries the switching access dedicated resource group information. According to the scheme of the invention, the switching from the macro base station to the small base station can be realized.

A method, communication device and non-transitory computer storage media configured for reporting sensing, where sensing data corresponding to a sensing service is reported based on information on a sensing policy. The sensing data indicates features of a sensed object. Reporting involves a control plane network function, which includes access and mobility management function (AMF), session management function (SMF), and policy control function (PCF). The sensing policy may define various aspects such as service type, object type, data collection manner and frequency, and reporting parameters. Sensing data can be raw or processed, and services may be triggered by applications or network functions. Information on the sensing policy is received during network registration or after service triggering.

The present disclosure provides a method (500) performed by a Service Management Function (SMF) for handling a Protocol Data Unit (PDU) session, comprising: generating (S501) an error indication when receiving a request message for a service operation via a service communication proxy (SCP) from an Access and Mobility Management Function (AMF) after a User Equipment (UE) establishes the PDU session with the SMF and moves from a first service area to a second service area which is different from the first service area and not supported by the SMF, the SMF being a first SMF or an intermediate SMF (1-SMF) supporting the first service area; and transmitting (S503) a response message for the service operation including the error indication to the AMF via the SCP.

The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method for supporting federated learning (FL) by an application federated learning support function (AFLSF) in a wireless communication system is provided. The method comprises receiving, from an application function (AF), a message for requesting assistance for an FL operation: obtaining, from a network data analytics function (NWDAF), analytics to get assistance on determination of an FL configuration recommendation; obtaining information related to at least one user equipment (UE) from a session management function (SMF) and an access and mobility management function (AMF); deriving a FL configuration recommendation based on the analytics and the obtained information related to the at least one UE; transmitting, to the AF, a response message including at least one parameter related to the FL configuration recommendation.

Methods, apparatus, and systems for providing multicast handover are disclosed. In one example aspect, the method includes receiving, by a target radio access node (T-RAN) from a source radio access node (S-RAN) or from an access and mobility management function (AMF), a handover request including a multicast or broadcast context for a handover of a multicast and broadcast service (MBS) to the T-RAN. The method further includes binding a shared tunnel for the MBS and a flow in a unicast protocol data unit (PDU) session in a case that an MBS session identified in the multicast or broadcast context has already been established at the T-RAN, and sending, to an AMF, a message including a handover request acknowledgment or a path switch.

An access and mobility management function (AMF) configured to obtain subscriber profile information without sending a get message and a subscribe message to a unified data management node (UDM) is described herein. The AMF is a new AMF that receives a registration request as part of a handover from an old AMF and receives user equipment (UE) context information from the old AMF. Without sending a get message to the UDM, the AMF obtains subscriber profile information by either fetching the subscriber profile information from an unstructured data storage function (UDSF) shared by a pool of AMFs, when the UDSF is available, or receiving the subscriber profile information from old AMF, when the UDSF is not available. Also, without sending a subscribe message to the UDM, the AMF receives notification of changes to the subscriber profile information from the UDM.

The invention discloses a key deduction method and device, and relates to the field of communication. In the method, an access and mobility management network element receives a first registration request message from a terminal device, the first registration request message is used for requesting the terminal device to register to a network through a first 3GPP access, generating a first key and sending the first key to a first access network device, the first key is a key used for communication between the terminal equipment and the first access network equipment. The access and mobility management network element also receives a second registration request message from the terminal device, the second registration request message being used for requesting the terminal device to register to the network through a second 3GPP access, and generating a second key, the second key is a key used for communication between the terminal device and the second access network device and is sent to the second access network device, and the first key is different from the second key. By adopting the method, two different keys are generated for two 3GPP accesses, and key isolation can be realized.