The present invention provides a data transmission method and apparatus. The method includes: transmitting physical downlink channel data according to a first-type reference signal (RS) or a second-type RS or a third-type RS. The method of the present invention ensures a balance between data transmission performance and RS overheads for different NarrowBand-Internet Of Things (NB-IOT) physical downlink channel data, thereby resolving the problem in the related art of not knowing which RS is to be used to transmit NB-IOT physical channel data.

Embodiments of the disclosure generally relate to interference measurement. A device determines an interference measurement pattern indicating distribution of resource elements allocated for interference measurement. Then, the device determines, based on the interference measurement pattern, an interference type for measuring interference on the resource elements.

A method for receiving a downlink signal by a terminal in a wireless communication system is disclosed. In particular, the method may comprise: receiving a first downlink signal through a first component carrier on the basis of a particular reception beam; and receiving a second downlink signal through a second component carrier on the basis of the particular reception beam, wherein the first downlink signal and the second downlink signal correspond to different types, and the particular reception beam is determined on the basis of the first component carrier or the first downlink signal.

A method of determining performance of a Radio Access Network (RAN) of a telecommunications network is disclosed in which the RAN covers an area that is divided into a plurality of unit cells. The method includes receiving a measured performance value of the RAN within at least one unit cell of the plurality of unit cells; receiving a simulated performance value of the RAN within each of the plurality of unit cells; identifying a unit cell that is associated with both a measured performance value and a simulated performance value; calculating, for the identified unit cell, a difference function between the simulated performance value and the measured performance value; and applying the difference function to the simulated performance value of at least one adjacent unit cell to the identified unit cell to determine a modified simulated performance value for the at least one adjacent unit cell.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify one or more symbols, associated with downlink communication of a first radio access technology (RAT), that are Impacted by antenna switching used to transmit an uplink reference signal of a second RAT. The UE may perform a mitigation action to mitigate downlink performance degradation associated with the first RAT based at least in part on identifying the one or more symbols. Numerous other aspects are described.

According to certain embodiments, a method performed by a wireless device comprises determining a subset of a set of control channel elements (CCEs) to monitor within one or more frequency domain monitoring occasions. The subset of CCEs excludes any CCEs of the set of CCEs that partially or fully overlap one or more guard physical resource blocks (PRBs). The method comprises monitoring the determined subset of CCEs for one or more control channel candidates within the frequency domain monitoring occasion(s).

Methods, systems, and devices for wireless communication are described to support guard interval (GI) configurations for multiple links. For example, a user equipment (UE) may determine a first GI duration for a first transmission reception point (TRP) and a second GI duration for a second TRP, when the UE is operating in a multi-TRP mode. The UE may determine the GI durations based on a difference in timing between signal reception from the first and second TRPs and may transmit a signal to one or both of the TRPs to indicate the GI durations. Based on the indicated GI durations, the first and second TRPs may transmit signaling to the UE that includes or implements the corresponding GI duration for each TRP. For example, the signaling may include a GI appended at the end of each symbol period that has a GI duration corresponding to the respective TRP.

The present disclosure provides a method and device in a node used for wireless communications. A node first performs a channel measurement respectively on a first reference signal resource set and a second reference signal resource set, and both the first reference signal resource set and the second reference signal resource set comprise at least one reference signal resource; then as a response to K consecutive out-of-step(s), starts a first timer; and as a response to an expiry of the first timer, transmits a target message; a measurement performed on a target reference signal resource set is used to determine the K consecutive out-of-step(s), the target reference signal resource set is one of the first reference signal resource set and the second reference signal resource set. The application improves the method and device of M-TRP inter-cell mobility to optimize the system performance.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station may receive, from a user equipment (UE), a measurement report associated with at least one downlink beam corresponding to a first transmit receive point (TRP). The base station may transmit, to the UE and using a second TRP, a communication using a selected downlink beam corresponding to the second TRP, wherein the selected downlink beam is selected based at least in part on a beam inference generated using a machine learning component, and wherein the beam inference is based at least in part on the measurement report and a location of the second TRP relative to a location of the first TRP. Numerous other aspects are described.

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a synchronization signal block (SSB) including a physical layer cell identifier (PCI), where one or more resource elements carrying the SSB overlap with resource elements carrying a downlink shared channel associated with another PCI. The PCIs may be for a serving cell or another cell, such as a non-serving cell. The UE may also receive one or more demodulation reference signals (DMRSs) in the one or more resource elements in the downlink shared channel. The UE may determine whether overlap is permitted between the resource elements by comparing the PCIs of the SSB and the downlink shared channel. In some examples, once the UE determines whether resource element overlap is permitted, the UE may process the DMRSs.