The disclosure relates to a fifth generation (5G) or sixth generation (6G) communication system. A method for Network slice admission control for interworking with an Evolved Packet Core Network (EPC) in a wireless network by a Session Management Function-Packet Data Network Gateway (SMF-PGW-C) is provided. The method includes detecting that at least one UE transfers a Packet Data Network (PDN) connection or a Protocol Data Unit (PDU) session from a N1 mode to a S1 mode during an intersystem change. Further, the method includes determining that an EPC counting is not required for a network slice of the wireless network. Further, the method includes transmitting a message to a Network Slice Admission Control Function (NSACF) in the wireless network to update or reduce a number of User Equipments (UEs) per network slice and a number of PDU sessions per network slice.

The present disclosure relates to a method of controlling a timeout event for a data packet transmission in a wireless communications network, and a node performing the method. In an aspect, a method of controlling a timeout event for a data packet transmission in a wireless communications network is provided, wherein a data packet retransmission timer initially is set to a timeout value indicating the maximum allowed round-trip time (RTT) for the data packet transmission and a timeout event occurs upon the retransmission timer expiring. The method includes observing the RTT for the data packet transmission over a connection in the network, increasing, upon the retransmission timer expiring before a measured value is available for the observed RTT, the timeout value for the retransmission timer, and determining whether a currently set timeout value for the retransmission timer is to be decreased or not.

The present disclosure relates to a method of controlling a timeout event for a data packet transmission in a wireless communications network, and a node performing the method. In an aspect, a method of controlling a timeout event for a data packet transmission in a wireless communications network is provided, wherein a data packet retransmission timer initially is set to a timeout value indicating the maximum allowed round-trip time (RTT) for the data packet transmission and a timeout event occurs upon the retransmission timer expiring. The method includes observing the RTT for the data packet transmission over a connection in the network, increasing, upon the retransmission timer expiring before a measured value is available for the observed RTT, the timeout value for the retransmission timer, and determining whether a currently set timeout value for the retransmission timer is to be decreased or not.

The present disclosure relates to a method of controlling a timeout event for a data packet transmission in a wireless communications network, and a node performing the method. In an aspect, a method of controlling a timeout event for a data packet transmission in a wireless communications network is provided, wherein a data packet retransmission timer initially is set to a timeout value indicating the maximum allowed round-trip time (RTT) for the data packet transmission and a timeout event occurs upon the retransmission timer expiring. The method includes observing the RTT for the data packet transmission over a connection in the network, increasing, upon the retransmission timer expiring before a measured value is available for the observed RTT, the timeout value for the retransmission timer, and determining whether a currently set timeout value for the retransmission timer is to be decreased or not.

Example embodiments are directed towards systems and methods for a fifth generation (5G) cloud-native wireless telecommunication network operated by a mobile network operator (MNO) implemented on a public cloud of a cloud computing service provider. Such a method may include the MNO operating telecommunication network functions (NFs) of the 5G wireless telecommunication network running within the public cloud. An indication may be received that one or more of the NFs of the 5G wireless telecommunication network running within the public cloud has a requirement to connect to another communication service provider (CSP) network different than the 5G cloud-native wireless telecommunication network operated by the MNO. Based on the indication, the system causes an autonomous system number (ASN) of the MNO to be used for network traffic from the one or more NFs to the other CSP network instead of an ASN of the cloud computing service providers.

A schedule coordinator schedules an air resource of a virtual distributed unit (vDU) in a wireless communication system. The schedule coordinator identifies a radio unit (RU) to be migrated to a target vDU, from among one or more RUs connected to a source vDU, requests the source vDU to exclusively transmit or receive first information including synchronization information of one or more user equipments (UEs) connected to the RU. The schedule coordinator allocates a source vDU-dedicated air resource to the source vDU, and allocates a target vDU-dedicated air resource to the target vDU. When a migration of the RU is completed, the schedule coordinator requests the target vDU to exclusively transmit or receive the first information, and requests the source vDU to stop transmitting or receiving the first information.

A schedule coordinator schedules an air resource of a virtual distributed unit (vDU) in a wireless communication system. The schedule coordinator identifies a radio unit (RU) to be migrated to a target vDU, from among one or more RUs connected to a source vDU, requests the source vDU to exclusively transmit or receive first information including synchronization information of one or more user equipments (UEs) connected to the RU. The schedule coordinator allocates a source vDU-dedicated air resource to the source vDU, and allocates a target vDU-dedicated air resource to the target vDU. When a migration of the RU is completed, the schedule coordinator requests the target vDU to exclusively transmit or receive the first information, and requests the source vDU to stop transmitting or receiving the first information.

The present invention addresses method, apparatus and computer program product for enabling improved coexistence of Software Defined Network, Network Function Virtualization, and legacy networks. Thereby, information about characteristics of available core network nodes is obtained, it is determined, upon receiving a signaling request from a network node, which type of network node the signaling network node is, among at least a legacy network node, a virtualized network node and a software defined networking network node, and at least one network node to be used as gateway is selected from the available core network nodes, according to the determined type of signaling/originating network node and a policy set in advance for minimizing traffic load.

A distributed radio frequency communication system facilitates communication between wireless terminals and a core network. The system includes a group of remote radio units (RRUs). Each RRU of the group of RRUs is coupled to an antenna to communicate with at least some of the mobile terminals and includes electronic circuitry to perform at least a first portion of a first-level protocol of a radio access network (RAN) and communicate over a fronthaul link. The system also includes a baseband unit (BBU) coupled to the core network and the fronthaul link, and communicably coupled to the group of RRUs over the fronthaul link. The BBU includes electronic circuitry to assign one or more RRUs, selected from the group of RRUs, to a cluster of RRUs based on one or more parameters, and to perform at least a second-level protocol of the RAN.

Embodiments are directed towards embodiments are directed toward systems and methods for user plane function (UPF) and network slice load balancing within a 5G network. Example embodiments include systems and methods for load balancing based on current UPF load and thresholds that depend on UPF capacity; UPF load balancing using predicted throughput of new UE on the network based on network data analytics; UPF load balancing based on special considerations for low latency traffic; UPF load balancing supporting multiple slices, maintaining several load-thresholds for each UPF and each slice depending on the UPF and network slice capacity; and UPF load balancing using predicted central processing unit (CPU) utilization and/or predicted memory utilization of new UE on the network based on network data analytics.