Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a relay user equipment (UE) may detect a beam failure on an access link. The relay UE may transmit, to a network entity and responsive to the beam failure, information indicating that a UE, that uses the relay UE for relaying communications with the network entity, is to use a different relay UE. Numerous other aspects are described.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a relay user equipment (UE) may detect a beam failure on an access link. The relay UE may transmit, to a network entity and responsive to the beam failure, information indicating that a UE, that uses the relay UE for relaying communications with the network entity, is to use a different relay UE. Numerous other aspects are described.

Disclosed herein is a method for determining a resource area to be allocated to a bandwidth part (BWP) in a wireless communication system. More specifically, the method performed by a terminal includes: receiving, from a network, a first resource allocation field associated with a resource allocation group (RBG) size for a first BWP and a second resource allocation field associated with an RBG size for a second BWP, on the first BWP; and when the size of the first resource allocation field is greater than the size of the second resource allocation field, determining a resource area to be allocated to the second BWP, based on a value of the first resource allocation field, which corresponds to the size of the second BWP, starting from a predefined point.

A method and terminal are provided in which a radio resource control (RRC) message is received which includes information instructing a version change from a first packet data convergence protocol (PDCP) to a second PDCP entity. First data is transferred from the first PDCP entity to the second PDCP entity in case that the first PDCP entity is changed to the second PDCP entity, and the first PDCP entity is released. A new PDCP header associated with the transferred first data is configured. The transferred first data is encrypted with a new security key. The first data is data having a value greater than or equal to a PDCP sequence number for which successful delivery is not acknowledged, from a radio link control (RLC) entity connected to the first PDCP entity, before reception of the RRC message.

Apparatus, method and computer program for adjusting radio resource management (RRM) measurements are disclosed. The method includes: obtaining a radio channel propagation profile (902) for a user apparatus, wherein the radio channel propagation profile indicates multipath effects on a radio signal received by the user apparatus; and adjusting (904) radio resource management measurements of the user apparatus based on the radio channel propagation profile.

Apparatus, method and computer program for adjusting radio resource management (RRM) measurements are disclosed. The method includes: obtaining a radio channel propagation profile (902) for a user apparatus, wherein the radio channel propagation profile indicates multipath effects on a radio signal received by the user apparatus; and adjusting (904) radio resource management measurements of the user apparatus based on the radio channel propagation profile.

Base stations, system, methods, and computer programs are disclosed to implement two successive or simultaneous ad hoc (Long-Term Evolution) LTE cells. The successive LTE cells are set up successively on a same channel number but with different Physical Cell IDs (PCID) and Tracking Area Codes (TAC). The simultaneous LTE cells are set up simultaneously on different channel numbers, and with different PCIDs and TACs. A radio connection is set up in the ad hoc LTE cell to an LTE user apparatus, and a Non-Access Stratum (NAS) timer is set simultaneously. The following is repeated until a predetermined period of time remains before an expiry of the NAS timer: commanding the LTE user apparatus to use full buffer in all uplink messages; forcing the LTE user apparatus to send uplink messages; and receiving a reply message from the LTE user apparatus.

A network may include user equipment (UE) devices and a base station that communicates using a control unit (CU) and a data unit (DU). A primary UE may duplicate the DU and a subset of control functions of the CU. When the DU on the primary UE is active, the base station and primary UE may effectuate a split or bearer duplication of the DU at the RLC/PDCP/MAC layer between the primary UE and the base station. Data may be concurrently routed data through the primary UE using inter-UE links and direct cellular telephone links to the base station. When the subset of the control functions of the CU are active on the primary UE, the device may perform RRC functions, MAC control functions, RLC control functions, or other control functions to generate information for use by the base station in updating communications.

A network may include user equipment (UE) devices and a base station that communicates using a control unit (CU) and a data unit (DU). A primary UE may duplicate the DU and a subset of control functions of the CU. When the DU on the primary UE is active, the base station and primary UE may effectuate a split or bearer duplication of the DU at the RLC/PDCP/MAC layer between the primary UE and the base station. Data may be concurrently routed data through the primary UE using inter-UE links and direct cellular telephone links to the base station. When the subset of the control functions of the CU are active on the primary UE, the device may perform RRC functions, MAC control functions, RLC control functions, or other control functions to generate information for use by the base station in updating communications.

An access-point station (AP) configured for communicating multi-user (MU) physical layer protocol data units (PPDUs) (MU-PPDUs) with plurality of non-AP stations (STAs) using dynamic channel switching may acquire a transmission opportunity (TXOP) on a channel comprising a primary channel and one or more non-primary channels. The AP may encode a channel switching indication frame that may request that at least some of the STAs temporarily switch from operating on the primary channel to operating on one of the non-primary channels. The AP may decode a response frame from each of the STAs that are indicated to switch. Each response frame may be received on the non-primary channel that an indicated STA is requested to switch to. For a downlink (DL) transmission, the AP may encode a DL MU-PPDU comprised of a plurality of PPDUs of different physical layer (PHY) types including at least a first PPDU for transmission on the primary channel to a first STA that had not been instructed to switch to a non-primary channel, and at least a second PPDU for transmission on one of the non-primary channels to a second STA that had been instructed to switch to one of the non-primary channels.