A method for SCell BFR performed by a UE is provided. The method includes: receiving a first SCell BFR configuration corresponding to a first SCell, the first SCell BFR configuration including at least one of a resource list for BFD and a resource list for NBI; detecting a beam failure condition in the first SCell by measuring at least one BFD reference signal; determining a first new candidate beam index for the first SCell based on the first SCell BFR configuration; and transmitting a beam failure recovery request that includes a cell index of the first SCell in which beam failure occurs and the determined first new candidate beam index.

Provided herein are a method for performing wireless communication by a first apparatus and an apparatus for supporting the same. The method may include the steps of receiving a service from a second apparatus, through a data link including multiple data paths, and determining whether or not to transmit a sidelink hybrid automatic repeat request (SL HARQ) feedback being related to the service to the second apparatus. Herein, based on Quality of Service (QoS) requirements of a service being transmitted through the multiple data paths, the data link may include the multiple data paths.

Provided herein are a method for performing wireless communication by a first apparatus and an apparatus for supporting the same. The method may include the steps of receiving a service from a second apparatus, through a data link including multiple data paths, and determining whether or not to transmit a sidelink hybrid automatic repeat request (SL HARQ) feedback being related to the service to the second apparatus. Herein, based on Quality of Service (QoS) requirements of a service being transmitted through the multiple data paths, the data link may include the multiple data paths.

The disclosure relates to a communication technique for combining, with IoT technology, a 5G communication system for supporting a data transmission rate higher than that of a 4G system, and to a system therefor. The disclosure may be applied to intelligent services (e.g., a smart home, a smart building, a smart city, a smart car or connected car, healthcare, digital education, retail business, security and safety-related service, etc.), based on a 5.sup.th generation (5G) communication technology and an Internet of Things (IoT)-related technology. The disclosure discloses a method and an apparatus for providing direct communication services.

The disclosure relates to a communication technique for combining, with IoT technology, a 5G communication system for supporting a data transmission rate higher than that of a 4G system, and to a system therefor. The disclosure may be applied to intelligent services (e.g., a smart home, a smart building, a smart city, a smart car or connected car, healthcare, digital education, retail business, security and safety-related service, etc.), based on a 5.sup.th generation (5G) communication technology and an Internet of Things (IoT)-related technology. The disclosure discloses a method and an apparatus for providing direct communication services.

Aspects of the present disclosure are regarding configuring an Integrated Access and Backhaul (IAB) node of an IAB network to handle forwarding of packets from another device as well as packets originating in the IAB network at the IAB-node. An example method includes retrieving, by a Backhaul Adaptation Protocol (BAP) layer of the IAB-node, a packet from an upper layer or a Radio Link Control (RLC) layer of the IAB-node. The method also includes determining an egress RLC channel of an egress backhaul (BH) link with a second device for transmitting the first packet based on a first configuration in response to retrieving the first packet from the RLC layer or a second configuration in response to retrieving the first packet from the upper layer. The method also includes transmitting the first packet to the second device via the egress RLC channel of the egress BH.

A wireless device having a plurality of media access control (MAC) addresses may receive information about a second access point (AP) from a first AP. The wireless device may receive a first group based transmission, on an operating band of the first AP, from the first access point (AP). The first group based transmission may have a preamble portion which indicates a modulation scheme used for a portion subsequent to the preamble portion. The first group based transmission may have a data portion and a first header portion. The wireless device may receive a second group based transmission, on an operating band of the second AP, from the second AP. The second group based transmission may have a second data portion having a second header portion. The second data portion may be modulated according to 4096 QAM.

A base station includes at least one remote unit (RU) that exchanges radio frequency (RF) signals with a user equipment (UE) using an air interface. The base station also includes a controller communicatively coupled to the at least one RU. The controller forms first RLC protocol data units (PDUs) for a first cell and second RLC PDUs for a second cell based on Radio Link Control (RLC) service data units (SDUs). A first at least one processor in the controller performs first Medium Access Control (MAC) scheduling for the first cell based on a first buffer occupancy update to produce a first scheduling decision. A second at least one processor in the controller performs second MAC scheduling for the second cell based on a second buffer occupancy update to produce a second scheduling decision.

The application relates to link adaptation for extremely high throughput (EHT) systems. In order to transmit parameters for EHT link adaptation, a control ID field in the HT control field of a MAC header is used to indicate that the A-control field of the HT control field contains EHT link adaptation information, and to indicate the presence of an additional EHT link adaptation extension field containing further EHT link adaptation information. Alternatively, B25 of the control information of the A-control field is used to indicate that the control field contains EHT link adaptation information, and to indicate the presence of an additional EHT link adaptation extension field containing further EHT link adaptation information.

The application relates to link adaptation for extremely high throughput (EHT) systems. In order to transmit parameters for EHT link adaptation, a control ID field in the HT control field of a MAC header is used to indicate that the A-control field of the HT control field contains EHT link adaptation information, and to indicate the presence of an additional EHT link adaptation extension field containing further EHT link adaptation information. Alternatively, B25 of the control information of the A-control field is used to indicate that the control field contains EHT link adaptation information, and to indicate the presence of an additional EHT link adaptation extension field containing further EHT link adaptation information.