Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, a signal indicating a configuration for the UE to report channel state information (CSI) associated with a first set of reference signals. In some examples, the UE may receive a set of reference signals less than the first set and evaluate one or more rules for generating a CSI report based on receiving the set of reference signals. In some examples, the UE may refrain from generating the CSI report if none of the reference signals from the first set are received. In some examples, the UE may refrain from generating the CSI report of at least one reference signal is missing from the first set. In some examples, the UE may refrain from generating the CSI report if a threshold number of reference signals are missing from the first set.

A method for wireless communication between at a base station and a user equipment is provided that accommodates multiple data streams of varying traffic characteristics. The base station may configure semi-persistent scheduling (SPS) occasions having a particular periodicity. Each SPS occasion having multiple slots associated with multiple physical downlink shared channels (PDSCH). A message is transmitted to a user equipment (UE) indicating the SPS occasions. Subsequently, the base station transmits data to the UE over the multiple PDSCH during the indicated SPS occasions. The base station can dynamically adjust the number of PDSCH for an SPS occasion, wherein different number of PDSCH are used in two sequential SPS occasions. Also, the PDSCH in a same SPS occasion may use at least one of: different encoding schemes or different modulation schemes.

A method performed by a UE for Listen Before Talk (LBT) failure detection and recovery includes the UE triggering a first consistent LBT failure procedure for a first consistent LBT failure detected on a first Bandwidth Part (BWP) of a first cell of a Base Station (BS); triggering a second consistent LBT failure procedure for a second consistent LBT failure detected on a second BWP of a second cell of the BS; triggering a first Scheduling Request (SR) procedure for the first consistent LBT failure; triggering a second SR procedure for the second consistent LBT failure; receiving, from the BS, an indication for BWP switching of the first cell; switching an active BWP of the first cell based on the indication; canceling the first consistent LBT failure procedure in response to receiving the indication; and canceling the first SR procedure in response to receiving the indication.

The UE allocates a slot group including a number of consecutive slots based on an operating subcarrier spacing. The UE receives a configuration allocating blind detections over non-overlapping CCEs in the slot group among a group of component carriers of the UE using the operating subcarrier spacing. The UE performs, in the slot group, a next set of blind detections over a next set of non-overlapping CCEs on a given component carrier of the group of component carriers in accordance with the configuration, when (a) a total number of blind detections that would have been performed in the slot group by the UE does not exceed a limit of total blind detections and (b) a total number of non-overlapping CCEs that would have been monitored in the slot group by the UE does not exceed a limit of total non-overlapping CCEs.

The apparatus may be a UE configured to communicate, in a FD mode, with at least one base station via an unlicensed spectrum; determine to cancel at least one UL transmission corresponding to one or more UL resources, the one or more UL resources corresponding to a LBT procedure; and cancel, based on the determination, the at least one UL transmission corresponding to the one or more UL resources. The apparatus may be a base station configured to communicate, in a FD mode, with one or more UEs via an unlicensed spectrum; determine that a LBT procedure associated with DL scheduling will occur via a set of UL resources; and transmit, to the one or more UEs based on the determination, an indication of a cancelation of one or more UL transmissions during the set of UL resources.

Method and system for transmitting data by a transmit device in a wireless communication channel bandwidth of a wireless network, the wireless communication channel bandwidth including a set of adjacent frequency channels of uniform bandwidth that comprise a primary channel for the transmit device and a plurality of secondary channels, including: sending, when the primary channel is sensed by the transmit device to be busy, a request frame for a receive device on one or more of the secondary channels that are sensed by the transmit device to be idle; monitoring, by the transmit device, for a response frame on each of the one or more of the secondary channels; and sending, by the transmit device, a data transmission for the receive device using a data channel that comprises one or more of the secondary channels on which the transmit device received a response frame from the receive device.

The apparatus may be a UE configured to communicate, in a FD mode, with at least one base station via an unlicensed spectrum; determine to cancel at least one UL transmission corresponding to one or more UL resources, the one or more UL resources corresponding to a LBT procedure; and cancel, based on the determination, the at least one UL transmission corresponding to the one or more UL resources. The apparatus may be a base station configured to communicate, in a FD mode, with one or more UEs via an unlicensed spectrum; determine that a LBT procedure associated with DL scheduling will occur via a set of UL resources; and transmit, to the one or more UEs based on the determination, an indication of a cancelation of one or more UL transmissions during the set of UL resources.

A method for receiving a downlink signal by a user equipment (UE) in a wireless communication system supporting an unlicensed band, includes monitoring a set of Physical Downlink Control Channel (PDCCH) candidates for receiving a PDCCH in subframe # n−1 of the unlicensed band, wherein n is an integer larger than 1; receiving a first PDCCH in subframe # n of the unlicensed band, wherein the first PDCCH includes information for indicating that a number of occupied symbols in the subframe # n is less than 14; and receiving, from a base station (BS), a second PDCCH including uplink scheduling information in the subframe # n based on that the UE does not receive the PDCCH in the subframe # n−1 and receives the first PDCCH.

Apparatus and methods for identifying a wireless signal-emitting device are disclosed. The apparatus is configured to sense and measure wireless communication signals from signal-emitting devices in a spectrum. The apparatus is operable to automatically detect a signal of interest from the wireless signal-emitting device and create a signal profile of the signal of interest; compare the signal profile with stored device signal profiles for identification of the wireless signal-emitting device; and calculate signal degradation data for the signal of interest based on information associated with the signal of interest in a static database including noise figure parameters of a wireless signal-emitting device outputting the signal of interest. The signal profile of the signal of interest, profile comparison result, and signal degradation data are stored in the apparatus.

A base station may determine a root for a sequence to be included in a signal to a UE. The base station may generate a generalized Chu sequence based on the root and scramble the generalized Chu sequence using a pseudorandom sequence that is common to a plurality of base stations. The base station may transmit the scrambled generalized Chu sequence to indicate the beginning of a downlink transmission. The UE may receive this scrambled generalized Chu sequence and determine if a beginning of a downlink transmission from a serving base station based on the received generalized Chu sequence and an expected generalized Chu sequence.