Abstract:
Methods for receiving downlink control information (DCI) are provided herein. A method performed by a wireless transmit/receive unit (WTRU) may include receiving configuration information indicating a location of a monitoring indicator and identifying a first one or more search spaces and a second one or more search spaces. The method may include receiving a first physical downlink control channel (PDCCH) transmission including first DCI, the DCI including the monitoring indicator at the indicated location. The method may include monitoring, based on the monitoring indicator, either the first one or more search spaces or the second one or more search spaces and decoding a second PDCCH transmission detected in either the first one or more search spaces or the second one or more search spaces to receive second DCI.
Abstract:
A method and apparatus are disclosed for demodulating a NR-PBCH signal. The method may comprise receiving a primary SS and an SSS. The received SSS signal may be used as a reference signal to detect demodulation reference signals of the NR-PBCH. These demodulation reference signals may be interleaved with data on the NR-PBCH. In one method, the NR-PBCH DMRS are associated with an SSB index in an effort to improve randomization in the synchronization process. The NR-PBCH payload may be demodulated using the PSS and/or SSS and the DMRS. In one embodiment, the NR-PBCH DMRS may mapped to DMRS REs on a frequency first and time second mapping basis.
Abstract:
A method performed by a wireless transmit/receive unit (WTRU) may include receiving a configuration message including timing information for monitoring at least a subset of a plurality of beams to receive a set of synchronization signals and receiving the set of synchronization signals based on the timing information. The received set of synchronization signals include a primary synchronization signal and a secondary synchronization signal. The method may include receiving a reference signal along with a physical broadcast channel (PBCH) transmission. The reference signal comprises a sequence that is derived from an index associated with one of the at least the subset of beams and associated with the received set of synchronization signals. The method may include transmitting a random access channel (RACH) transmission. The RACH transmission includes a preamble sequence corresponding to the one of the subset of the plurality of beams.
Abstract:
Systems, methods, and instrumentalities are disclosed for scheduling fractional frequency gaps (FFGs). A wireless transmit/receive unit (WTRU) may receive an FFG type, an FFG pattern, a filter type, and/or a sensing metric. The WTRU may transmit a sub-band identifier, a sensing metric value, and/or an event report. The FFG type may indicate a sub-band sensing type. The FFG pattern may indicate a sub-band gap. The filter type may indicate the sub-band spectral filter type. The sub-band identifier may indicate the identity of the sub-band gap. The sensing metric may indicate a metric value corresponding to the sub-band identifier. The event report may indicate an identifier of a measurement report.
Abstract:
A base station may transmit and a wireless transmit/receive unit (WTRU) may receive configuration information indicating a set of physical channel frequency resources. The base station may transmit and the WTRU may receive indication information indicating an allocation of at least a subset of the set of physical channel frequency resources. Further, the WTRU may transmit and the base station may receive data in a physical shared channel transmission using one or more physical shared channel frequency resources from the subset of the set of physical channel frequency resources during a time period. Moreover, the base station may transmit and the WTRU may receive hybrid automatic repeat request acknowledgement (HARQ-ACK) information associated with the received data during a time location, wherein the time location is associated with the subset of the set of physical channel frequency resources. The indication information may be downlink control information (DCI).
Abstract:
Methods for receiving downlink control information (DCI) are provided herein. A method performed by a wireless transmit/receive unit (WTRU) may include receiving configuration information configuring a set of normal physical downlink control channel (nPDCCH) candidates, receiving a first transmission including first downlink control information (DCI), the first DCI including a first monitoring indicator having a first value, and skipping, based on the first monitoring indicator, monitoring of the set of nPDCCH candidates during a first time window. The method may include receiving a second PDCCH transmission including second DCI, the second DCI including a second monitoring having a second value, monitoring, based on the second monitoring indicator, the set of nPDCCH candidates during a second time window, and decoding a PDCCH transmission detected in the monitored set of nPDCCH candidates to receive third DCI, wherein the third DCI includes information indicating a downlink grant or an uplink grant.