Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit, to another UE, a sidelink channel state information reference signal (S-CSI-RS) and an indication associated with triggering a non-codebook based precoded S-CSI-RS. The UE may receive, from the other UE, the non-codebook based precoded S-CSI-RS. The UE may transmit, to the other UE, a non-codebook based channel state information (CSI) report medium access control (MAC) control element (MAC-CE) that includes an indication of one or more selected precoding beams based at least in part on the non-codebook based precoded S-CSI-RS. Numerous other aspects are described.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first wireless node may receive a packet from a second wireless node, wherein the packet is associated with an indication of whether the packet is associated with a radio access link or a sidelink of the first wireless node. The first wireless node may transmit the packet on the radio access link or the sidelink in accordance with the indication. Numerous other aspects are described.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first wireless node may receive a packet from a second wireless node, wherein the packet is associated with an indication of whether the packet is associated with a radio access link or a sidelink of the first wireless node. The first wireless node may transmit the packet on the radio access link or the sidelink in accordance with the indication. Numerous other aspects are described.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit, to a remote radio head (RRH), a protocol configuration, wherein the protocol configuration configures the RRH to perform one or more MAC protocol layer functions of the UE. The UE may perform a communication, wherein one or more higher layer functions associated with the communication are performed by the UE, wherein the one or more higher layer functions are associated with a higher layer than the MAC protocol layer. Numerous other aspects are described.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit, to a remote radio head (RRH), a protocol configuration, wherein the protocol configuration configures the RRH to perform one or more MAC protocol layer functions of the UE. The UE may perform a communication, wherein one or more higher layer functions associated with the communication are performed by the UE, wherein the one or more higher layer functions are associated with a higher layer than the MAC protocol layer. Numerous other aspects are described.

A UE may receive a BFD-RS and calculate, based on the BFD-RS, one or more of a value of an RSSI or at least one of a value of an SNR or a value of an RSRP, such that the UE may report a BFI based on the calculated values. The UE may initiate at least one of a total BFI timer or a consecutive BFI timer when a first BFI of a plurality of BFIs is stored, and increment at least one of a total BFI counter or a consecutive BFI counter when each of the plurality of BFIs is stored. A BFD procedure may be performed if at least one of the total BFI counter is greater than or equal to a maximum total count or the consecutive BFI counter is greater than or equal to a maximum consecutive count prior to an expiration of respective BFI timers.

A UE may receive a BFD-RS and calculate, based on the BFD-RS, one or more of a value of an RSSI or at least one of a value of an SNR or a value of an RSRP, such that the UE may report a BFI based on the calculated values. The UE may initiate at least one of a total BFI timer or a consecutive BFI timer when a first BFI of a plurality of BFIs is stored, and increment at least one of a total BFI counter or a consecutive BFI counter when each of the plurality of BFIs is stored. A BFD procedure may be performed if at least one of the total BFI counter is greater than or equal to a maximum total count or the consecutive BFI counter is greater than or equal to a maximum consecutive count prior to an expiration of respective BFI timers.

Suggested is a novel condition for a media access control (MAC) entity in user equipment (UE) reselecting a sidelink resource in a wireless communication system. The MAC entity of the UE can reselect a sidelink resource when a configured sidelink grant does not satisfy a latency requirement according to ProSe per-packet priority (PPPP). More particularly, configuration is performed by an upper layer so that the MAC entity transmits on the basis of sensing using a resource pool; the MAC entity selects generation of a configured sidelink grant corresponding to transmission of a plurality of MAC protocol data units (PDU); and when data is available in a sidelink traffic channel (STCH) and the configured sidelink grant does not satisfy the latency requirement according to the PPPP, a sidelink resource is reselected.

Suggested is a novel condition for a media access control (MAC) entity in user equipment (UE) reselecting a sidelink resource in a wireless communication system. The MAC entity of the UE can reselect a sidelink resource when a configured sidelink grant does not satisfy a latency requirement according to ProSe per-packet priority (PPPP). More particularly, configuration is performed by an upper layer so that the MAC entity transmits on the basis of sensing using a resource pool; the MAC entity selects generation of a configured sidelink grant corresponding to transmission of a plurality of MAC protocol data units (PDU); and when data is available in a sidelink traffic channel (STCH) and the configured sidelink grant does not satisfy the latency requirement according to the PPPP, a sidelink resource is reselected.

eNB (100A) notifies gNB (100B) of a setting location that indicates whether to set in the eNB (100A) or the gNB (100B) a PDCP entity that is a packet data convergence protocol layer entity to be used in a split bearer. The gNB (100B) sets a protocol stack to be used in the split bearer based on the setting location of the PDCP entity notified from the eNB (100A).