1461 results about "Mobility management" patented technology

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 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.

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.

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).

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.

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.

Methods and apparatuses for facilitating network slice selection are disclosed. According to an embodiment, a service consumer sends, to a service provider, a request for subscribing to a notification of a change in network slice selection assistance information (NSSAI) availability information. The request indicates that the notification is to be subscribed to for all tracking area identifiers (TAIs) supported by an access and mobility management function (AMF) set. The service consumer receives, from the service provider, a response to the request.

A method can include sending, by a first wireless device to an access and mobility management function (AMF) via a mobile base station relay (MBSR), a registration request message requesting a first network slice and a second network slice. The MBSR can include a base station distributed unit and a mobile terminal unit connecting to a base station central unit via a Uu interface. The MBSR can support mobility within a network and can broadcast an indication of a mobile relay cell. The method can also include receiving, from the MBSR, a registration accept message indicating the first network slice being allowed and the second network slice being rejected. The method can further include receiving, from the MBSR, one or more messages indicating a tracking area change of the MBSR, the second network slice being supported, and the first network slice being rejected.

The invention relates to the technical field of network communication, in particular to a 5G-A network slice dynamic adjustment and resource allocation system oriented to low-altitude economy. The system comprises a mobility management feature integration module, a network slice service level protocol evaluation module, a mobility management demand prediction benchmark construction module, a multi-dimensional trend prediction module, a joint optimization decision generation module and a strategy verification and execution module, and is used for acquiring a mobility management feature data set of a wireless network; performing network slice service level protocol evaluation on the wireless network to obtain a network slice state evaluation result; constructing a mobility management demand prediction benchmark; performing multi-dimensional trend analysis on the network slice state evaluation result to obtain a prediction result; performing joint optimization decision on the standard network slice configuration strategy to obtain a network slice adjustment strategy; and executing the verified slice adjustment strategy to realize dynamic adjustment and resource allocation of the network slice. According to the invention, the efficiency of network slice dynamic adjustment and resource allocation can be improved.

The invention discloses a rail transit multi-network integration method based on a digital trunking technology, relates to the technical field of communication, and aims to solve the problem that a traditional narrowband trunking system cannot meet the requirements of voice and data comprehensive bearing and vehicle-ground large-bandwidth service real-time transmission. The method comprises the following steps: constructing a time division duplex long-term evolution broadband digital trunking unified bearing platform; an intermediate media access control layer fusion architecture is deployed, and seamless mobility management of the heterogeneous network is realized through unified authentication and multi-link aggregation; an intelligent vertical switching algorithm based on prediction and multi-criterion decision is introduced, a bidirectional long-short-term memory network model is utilized to predict a network state trend, and an improved entropy weight method and an analytic hierarchy process are combined to dynamically select an optimal access network according to service requirements. According to the invention, the network operation efficiency and the user experience can be obviously improved, and high reliability and high service quality of the rail transit communication system are ensured.

The present disclosure is related to multi-queue management techniques and packet reordering techniques for inter-radio access technology (RAT) and intra-RAT traffic steering. The multi-queue management and packet reordering techniques may be used in Multi-Access Management Services (MAMS) framework, which is a programmable framework that provides mechanisms for the flexible selection of network paths in a multi-access (MX) communication environment, based on an application's needs. Other embodiments may be described and / or claimed.

A wireless device may be configured to perform a method including receiving, from a time sensitive network (TSN) translator device, a TSN parameter. The wireless device may also send, to an access and mobility management function (AMF), a non-access stratum (NAS) message indicating a request to establish a protocol data unit (PDU) session comprising the one or more TSN parameters. The wireless device may receive, from the AMF, a message indicating acceptance of the PDU session.

The invention discloses a mobility management optimization method and system in a low earth orbit satellite system. The system comprises two core mechanisms of idle state position registration and connected state Xn switching. Aiming at idle state management, registering through periodic position change, integrating registration requests of a plurality of UE (User Equipment) by adopting a batch message merging technology, and sending the integrated registration requests to a ground core network; in the aspect of connection state management, a multi-UE collaborative switching process based on an Xn interface is designed. According to the method, the problem of signaling storm in a low-orbit satellite high-speed moving scene is effectively solved, the switching time delay is greatly reduced, the data stream continuity retention rate is remarkably improved, and the method is suitable for mobility management optimization of a large-scale satellite communication system.

The invention provides a communication method and device, a storage medium and a computer program product, relates to the technical field of communication, and is used for improving the reliability of AKMA service. The method comprises the steps that under the condition that parameters of a terminal are updated, a UDM network element obtains authentication and key management AKMA service data of an application and a parameter updating reason of the terminal; and under the condition that the AKMA service data indicates that the terminal subscribes to the AKMA service and the parameter updating reason of the terminal is route identifier updating, initial registration request information of the terminal is sent to an access and mobility management function AMF network element, and the initial registration request information is used for requesting the terminal to execute initial registration.

The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method performed by a first mobility management entity (MME) which is an onboard MME of a satellite in a wireless communication system is provided. The method comprises receiving, from a user equipment (UE), an attach request message associated with a non stratum access (NAS) procedure; and transmitting, to the UE, an attach accept message for the attach request message, the attach accept message including a wait timer for a subsequent NAS procedure, wherein the subsequent NAS procedure is performed based on an expiration of the wait timer.

A second base station (BS) receives, from a core network node and in response to sending a path switch request message, a path switch acknowledge message comprising one or more identifiers of one or more partially allowed network slices for a wireless device, wherein the one or more partially allowed network slice are not supported in one or more tracking area (TAs) of a registration area (RA) of the wireless device. The second BS determines, based on a third BS supporting the one or more partially allowed network slices, a handover of the wireless device to the third BS, and sends, to the third BS, a handover request message comprising the one or more identifiers.

The invention discloses a communication method and a communication device, which are used for realizing mobility management of an NTN (Network Temporary Network). The method comprises the steps that first information is received, the first information comprises at least one first configuration and / or multiple second configurations used for NTN bottom layer switching, and target configuration used for NTN bottom layer switching is determined according to the first information. Wherein each terminal device in one group of terminal devices in the first area corresponds to any one first configuration in at least one first configuration, and at least one terminal device in one group of terminal devices in the first area corresponds to at least one second configuration in a plurality of second configurations; the group of terminal equipment comprises one or more terminal equipment; the first area is related to the coverage range of movement of the NTN network equipment; the first terminal device is included in the first group of terminal devices. Therefore, the mobility management of the NTN network can be realized through the configuration of the NTN bottom layer switching of a group of terminal equipment.

A terminal positioning request method is performed by a network device. The method includes: transmitting a request message to an access and mobility management function (AMF) network element or a location management function (LMF) network element, wherein the request message makes a request to perform at least one of positioning a terminal or obtaining location information of the terminal.

Techniques for packet core network (PCN) gateway selection of collocated gateways are disclosed herein. A mobility management entity (MME) can retrieve charging characteristics (CC) information to determine whether collocated gateway selection is applicable for a UE. When collocated gateways are to be selected, the MME can configure domain name server (DNS) queries in a manner which is adapted for collocated gateway identification. Upon receipt of the DNS query, the DNS can be configured to identify collocated serving gateways (SGWs) which are each collocated with a packet gateway (PGW). The DNS can return identifications of the collocated SGWs to the MME, and the MME can use the identifications of the collocated SGWs to select a collocated SGW and a corresponding collocated PGW for use in connection with the network access for the user equipment.

Disclosed are methods, systems, and computer-readable media to perform operations for network slice enhancements. The operations include detecting a Tracking Area (TA) change due to a handover during a mobility registration update procedure (MRU) of a user equipment (UE) in a 5G Mobility Management (5GMM)-CONNECTED state, in response to detecting the TA change and a new TA being a part of a registration area associated with the UE during the MRU procedure, continuing to perform the MRU procedure; in response to detecting the TA change and the new TA being outside of the registration area associated with the UE during the MRU procedure, remaining in the 5GMM-CONNECTED state; aborting the MRU procedure; and re-initiating a new MRU procedure.

The invention provides a mobility management method and device, a storage medium and a program product, relates to the technical field of communication, and can enable a network side to sense the reason for performance reduction or switching failure of a terminal side. The method comprises the following steps: a first node executes a first operation under the condition that a first condition is met in a switching process without random access; the first operation comprises at least one of the following items: reporting mobility related information and triggering a random access process; wherein the first condition is a condition which causes performance reduction or switching failure of the first node; the mobility related information is used for indicating a reason for performance reduction or a reason for switching failure of the first node.

According to one embodiment of this specification, there is provided an operation method of user equipment (UE). The method may comprise: generating an Evolved Packet System (EPS) Mobility Management (EMM) transport message for an initial non-access stratum (NAS) message; and transmitting the EMM transport message with an integrity protected. If the EMM transport message may include a data container, the EMM transport message may be partially ciphered. The EMM transport message may be transmitted if the UE uses an Evolved Packet System (EPS) service with control plane Cellular Internet of Things (CIoT) EPS optimization with overhead reduction.

The system connects a wireless device to a non-terrestrial communication network from a terrestrial communication network such that a wireless communication service is provided by the non-terrestrial communication network. The system pairs with a secondary device configured to collect data related to a physiological condition of a user of the wireless device. The system collects mobility management event data when the wireless device connects to the non-terrestrial communication network and when the wireless device enters a different tracking area. The system receives data related to the physiological condition of the user of the wireless device. The wireless device transmits the physiological data when the wireless device enters a new tracking area. The system determines a state of emergency based on the mobility management event data and data related to the physiological condition of the user of the wireless device. The system causes the non-terrestrial network to notify an emergency service.

Provided are a communication method, device and system, exemplarily, the method can be applied to a mobility management scenario of a terminal. In the method, under the condition that the first reference position is determined to meet the preset condition, the first reference position is added into the first candidate position set, and the second reference position in the first candidate position set is moved out of the first candidate position set to obtain the second candidate position set, so that the situation that the positioning information of the terminal is jittered and the positioning accuracy of the terminal is improved can be prevented. As a result, the set of the recent N reference positions is frequently changed, so that the terminal can be prevented from frequently reporting the set of the recent N reference positions.