Samsung Electronics Co., Ltd.

Nokia Technologies Oy

Nokia Solutions and Networks Oy

Ashok Kumar Nayak

Hoyeon Lee

Lalith Kumar

Danish Ehsan Hashmi

Varini Gupta

Arijit Sen

Koustav Roy

Rajavelsamy Rajadurai

Nivedya Parambath Sasi

Rohini Rajendran

The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. Embodiments herein disclose a wireless network and methods to maintain a MA PDU session at a NSACF entity. The method includes determining, by a SMF entity, that a PDU session is the MA PDU session based on an indication from a UE. Further, the method includes indicating, by the SMF entity, that the PDU session is the MA PDU session to the NSACF entity in response to determination. The wireless network may maintain the count accurately even though the PDU session is a MA PDU session.

Wireless network and methods to maintain MA PDU session at NSACF

The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method for limiting a scope of authorization provided to a network function service consumer (NFC) device in a wireless network by a network repository function (NRF) server is provided. The method includes receiving an NF-registration request message from a network function producer (NFP) device. The NF-registration request message includes at least one of a set of the first information element indicating a single-network slice selection assistance information (S-NSSAI) of the NFC device allowed to access by the NFP device, a corresponding second information element indicating operations allowed on resources of the NFP device belonging to a S-NSSAI of the NFP device, and a third information element indicating a trust-level of the NFC device.

System and method for limiting a scope of authorization provided to NFC device

The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. Embodiments herein provide a method of an access and mobility management function (AMF). The method includes monitoring whether a user equipment (UE) registered to a network slice establishes a protocol data unit (PDU) session using the network slice for a time, determining that the UE does not establish the PDU session in the time based on an expiration of a timer and deregistering the UE for the network slice.

Method and AMF apparatus for NSAC operation based on UE's actual usage

An apparatus comprising: at least one processor; and at least one memory including computer program code; the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to: receive (), by a first function, subscription information relating to a user equipment from a server in response to the first function being restored; and sending (), by the first function, the subscription information relating to the user equipment to a second function.

Apparatus, method, and computer program for updating user subscription profiles

The disclosure relates to a 5th generation (5G) or 6th generation (6G) communication system for supporting a higher data transmission rate. A method performed by a session management function (SMF) node in a wireless communication system is provided. The method includes receiving, from the user equipment (UE), a protocol data unit (PDU) session establishment request for establishing at least one PDU session between the UE and multiple internet protocol (IP) multimedia subsystem (IMS) networks, subscribing, with a unified data manager (UDM) node to receive a first notification for a proxy-call session control function (P-CSCF) restoration, by providing an identifier for each PDU session, receiving, from the UDM node, the first notification for the P-CSCF restoration based on a subscription with a UDM, and performing, the P-CSCF restoration for the PDU session of the UE based on the received first notification for the P-CSCF restoration.

Method and apparatus for restoring proxy-call session control function in a wireless communication system

The disclosed apparatus comprises means for performing storing location information of one or more fixed-line user equipment operating in an internet protocol multimedia subsystem. In response to an update of location information at the apparatus for one or more of the fixed-line user equipment, the apparatus comprises means for sending a message to a serving call state control function serving the one or more fixed-line user equipment. The message indicates a location update of the one or more fixed-line user equipment whose location information has been updated at the apparatus.

Apparatus, method and computer program for supporting fixed-line user equipment

The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. Methods and systems for handling network slice admission control for User Equipment (UE) are provided. The disclosure relates to network slicing and more particularly, to a system and method of ensuring that a communication system is able to accurately enforce quota on the maximum number of UEs concurrently registering for a network slice defined by a Single Network Slice Selection Assistance Information (S-NSSAI). The disclosure describes how the limits of 'Number of Terminals' configured for an S-NSSAI may be accurately maintained in a Network Slice Admission Control Function (NSACF), and thus the enforcement may be performed when the limit is really exhausted. The disclosure also describes that a deregistration notification from a Unified Data Management (UDM) may act as a trigger for an old Mobility Management Function (AMF) to decrement counts in the NSACF as the old AMF is no longer serving the UE.

Methods and systems for handling network slice admission control for UE

An apparatus () comprising means for: receiving, from a second user equipment (), a request for communication with a first user equipment (), after a period of time during which the apparatus was not operating; receiving information from a home subscriber server () comprising an expiry value for registration of the first user equipment with the apparatus; and determining that the registration has expired.

Growing community of inventors

Bengaluru, India

Ashok Kumar Nayak