A flow control method and an apparatus, the method including receiving, by a first integrated access and backhaul (IAB) node, a radio link failure (RLF) notification from a second IAB node, where the first IAB node is a child node of the second IAB node and the second IAB node is a parent node of the first IAB node, and rerouting, by the first IAB node, based on the RLF notification, uplink data that corresponds to N backhaul adaptation protocol (BAP) routing identifiers, where N is an integer greater than or equal to 1.

A flow control method and an apparatus, the method including receiving, by a first integrated access and backhaul (IAB) node, a radio link failure (RLF) notification from a second IAB node, where the first IAB node is a child node of the second IAB node and the second IAB node is a parent node of the first IAB node, and rerouting, by the first IAB node, based on the RLF notification, uplink data that corresponds to N backhaul adaptation protocol (BAP) routing identifiers, where N is an integer greater than or equal to 1.

There is provided a communication device capable of determining whether admission of new data traffic is allowed or rejected not by comparing throughputs only, but by considering other parameters when the data traffic is admitted. A communication device (10) according to the present invention includes a determination unit (11) that determines whether to admit a flow regarding a new radio terminal (30), the flow being to be transmitted between a radio terminal (30) and a base station (20) and having a transmission deadline, depending on a transmission state of a plurality of data packets included in the flow, and a communication unit (12) that transmits, to the base station (20), instruction information indicating whether to admit the flow regarding the new radio terminal (30).

There is provided a communication device capable of determining whether admission of new data traffic is allowed or rejected not by comparing throughputs only, but by considering other parameters when the data traffic is admitted. A communication device (10) according to the present invention includes a determination unit (11) that determines whether to admit a flow regarding a new radio terminal (30), the flow being to be transmitted between a radio terminal (30) and a base station (20) and having a transmission deadline, depending on a transmission state of a plurality of data packets included in the flow, and a communication unit (12) that transmits, to the base station (20), instruction information indicating whether to admit the flow regarding the new radio terminal (30).

A wireless transmit/receive unit (WTRU) may select a first type of buffer status information or a second type of buffer status information. The first type of buffer status information may indicate an amount of data buffered and the second type of buffer status information has less bits and is a different format than the first type of buffer status information. The WTRU may select, subsequent to a number of subframes of a transmission of buffer status information of a first type, buffer status information of the first type for transmission.

The present invention relates to the transmission of traffic in a mobile communication system and, more particularly, to a method and device for transmitting traffic in consideration of a quality of service (QoS) characteristic of the traffic. The purpose of the present invention is to efficiently provide a QoS differentiated according to traffic in consideration of a traffic type and a content provider in a network congestion situation of the mobile communication system.

The present disclosure is to effectively perform coordinated transmission in a wireless communication system. A base station includes a controller for providing control to generate control information including channel state information and buffer occupancy state related information of terminals, and a communication unit for transmitting the control information. In addition, the present disclosure also includes other exemplary embodiments different from the aforementioned exemplary embodiments.

The disclosure relates to a 5G or pre-5G communication system for supporting a higher data rate after a 4G communication system such as LTE. A method according to an embodiment of the disclosure is a control method in an edge enabler server (EES) of a mobile edge computing system, and may include subscribing to a user plane path change event at an edge application server (EAS); determining an application context relocation (ACR) based on receiving a user plane path management event notification from the mobile communication network in case of subscribing to the user plane path change event for the EAS; transmitting an ACR request message to the EAS; receiving an EAS response message from the EAS; and transmitting an application function (AF) acknowledgment message to a first node of the mobile communication network in response to receiving the EAS response message from the EAS.

The disclosure relates to a 5G or pre-5G communication system for supporting a higher data rate after a 4G communication system such as LTE. A method according to an embodiment of the disclosure is a control method in an edge enabler server (EES) of a mobile edge computing system, and may include subscribing to a user plane path change event at an edge application server (EAS); determining an application context relocation (ACR) based on receiving a user plane path management event notification from the mobile communication network in case of subscribing to the user plane path change event for the EAS; transmitting an ACR request message to the EAS; receiving an EAS response message from the EAS; and transmitting an application function (AF) acknowledgment message to a first node of the mobile communication network in response to receiving the EAS response message from the EAS.

A service data flow transmission method, a communication apparatus, and a communication system. The method includes: a user plane network element receives characteristic information of a service data flow and QoS information of the service data flow, where the characteristic information of the service data flow indicates traffic characteristic information corresponding to different time slices of the service data flow in a time period, and the QoS information indicates QCIs corresponding to the different time slices; determines, based on the characteristic information of the service data flow, a first time slice corresponding to a data packet of the service data flow; and sends the data packet to an access network device based on the first time slice corresponding to the data packet of the service data flow and a QCI corresponding to the first time slice.