Disclosed are a communication scheme and a system thereof for converging an IoT technology and a 5G communication system for supporting a high data transmission rate beyond that of a 4G system. The present disclosure can be applied to intelligent services (for example, services related to a smart home, smart building, smart city, smart car, connected car, health care, digital education, retail business, security, and safety) based on the 5G communication technology and the IoT-related technology. The present disclosure relates to a method of a session management function (SMF) entity in a communication system.

A wireless communication network serves a wireless user device using N1 signaling. The wireless communication network establishes active N1 signaling links with the wireless user device and exchanges active N1 signaling with the wireless user device over the active N1 signaling links. The wireless communication network converts one of the active N1 signaling links for the wireless user device into an inactive N1 signaling link and exchanges inactive N1 signaling with the wireless user device to maintain the inactive N1 signaling link. The wireless communication network converts the inactive N1 signaling link for the wireless user device back into the one of the active N1 signaling links without performing a new registration for the wireless user device. The wireless communication network exchanges additional active N1 signaling with the wireless user device over the active N1 signaling links.

Various embodiments are generally directed to improved channel quality information feedback techniques. In one embodiment, for example, an apparatus for a base station is provided that includes a radio interface and a processor coupled to the radio interface. The processor is configured to receive a channel quality indicator (CQI) index, wherein the CQI index is based on a channel state information (CSI) reference resource, further wherein a first three orthogonal frequency-division multiplexing (OFDM) symbols of the CSI reference resource are occupied by control signals, select a modulation and coding scheme (MCS) for a physical downlink shared channel (PDSCH) based on the CQI index, and cause transmission of the PDSCH based on the selected MCS via the radio interface. Other embodiments are described and claimed.

A technique for implementing AP-local dynamic switching involves Layer 2 switching. This may be accomplished by providing data associated with wireless stations to an AP sufficient to enable the AP to determine whether traffic from a particular wireless station should be locally switched. Alternatively, the wireless station may be able to determine whether to locally switch traffic based upon the traffic itself. For example, it may be desirable to AP-locally switch voice traffic to avoid latency, which is particularly detrimental to voice transmissions such as voiceover-IP. Traffic that is not to be switched locally is Layer 2 tunneled upstream.

A session management function (SMF) receives, from an access and mobility management function (AMF), a first time duration based on a plurality of user plane connection activations for a plurality of PDU sessions. The first time duration indicates a delay between receiving a downlink data packet and notifying the AMF about user plane connection activation for the downlink data packet. The SMF sends, to a user plane function, a second message to delay sending of further user plane connection activations to the SMF. The second message indicates a value of the first time duration.

In a user equipment of a wireless communication system, a method for signal transmission and reception may include: sending a request for a Circuit Switched voice network (CS) service to a Gateway Mobile Switching Center (GMSC) to send and receive data to and from a second user equipment; and receiving a call reject response corresponding to the service request from the GMSC, wherein the call reject response is sent by an entity in a core network of the second user equipment. According to an embodiment, it is possible to provide a suitable service to a sender terminal making a CS service request to a receiver terminal having subscribed only to a PS service without increasing network load.

Methods and systems are provided for supporting efficient and secure “Machine-to-Machine” (M2M) communications using a module, a server, and an application. A module can communicate with the server by accessing the Internet, and the module can include a sensor and/or an actuator. The module, server, and application can utilize public key infrastructure (PKI) such as public keys and private keys. The module can internally derive pairs of private/public keys using cryptographic algorithms and a first set of parameters. A server can authenticate the submission of derived public keys and an associated module identity. The server can use a first server private key and a second set of parameters to (i) send module data to the application and (ii) receive module instructions from the application. The server can use a second server private key and the first set of parameters to communicate with the module.

An apparatus comprising at least one processing circuitry, and at least one memory for storing instructions to be executed by the processing circuitry, wherein the at least one memory and the instructions are configured to, with the at least one processing circuitry, cause the apparatus at least: to determine whether a bearer to be set up and used for a communication connection of a communication element is a bearer eligible for selected traffic offloading to a local gateway of a cell group when the local gateway is available, and in case the determination is affirmative, to provide an indication in a signaling to a communication network control element of the communication element, the indication indicates that the bearer to be set up is a bearer eligible for selected traffic off-loading as soon as a local gateway is available.

The present disclosure may provide a method of operating a terminal based on a plurality of networks in a wireless communication system. Herein, the method of operating the terminal may include establishing a connection with a public land mobile network (PLMN), determining whether or not to simultaneously access the PLMN and non-public networks (NPN), transmitting, to the NPN, indication information indicating a simultaneous access request for the PLMN and the NPN, receiving, from the NPN, supported PLMN list information, and when the connected PLMN is included in the supported PLMN list information, accessing the NPN through a packet data unit (PDU) session of the PLMN. Herein, a supported PLMN list may be a list which is determined according to whether or not a quality of service (QoS) is supported based on a service level agreement (SLA) between the PLMN and the NPN.

The present disclosure relates to methods and nodes in an integrated access and backhaul (IAB) network. In one aspect, a method for a local breakout, performed in a first network node of the IAB network is provided. The first network node is being in communication with a core network, and the method comprises providing a network connection between the first network node and a local data network having a first network address, receiving a data traffic, transmitted by a user equipment (UE), wherein the data traffic is destined for a central application server having a second network address and being in communication with the core network. If the at a traffic meets a requirement for the local breakout from the first network node, the method comprises forwarding the data traffic to a local application server of the local data network and receiving from the application server of the local data network, a selected part of the data traffic destined for the central application server. The method further comprises transmitting the selected part of the data traffic to the central application server, whereby mitigating data traffic overload of the IAB network.