Methods and apparatus in a fifth-generation wireless communications network, including an example method, in a wireless device, that includes determining a reporting quality threshold for a parameter related to channel state information (CSI); performing a measurement for each of a plurality of beams from a first predetermined set of beams for evaluation; evaluating the measurement for each of the plurality of beams against the reporting quality threshold; discontinuing the performing and evaluating of measurements in response to determining that the reporting quality threshold is met for one of the beams, such that one or more beams in the first predetermined set of beams are not measured and evaluated; and reporting, to the wireless communications network, CSI for the one of the beams.

This application provides an information transmission method. The method includes: determining, by a first network device, a communication type of the first network device in a second time period; and sending, by the first network device, a signal to a second network device in a first time period through an air interface when the communication type is downlink communication or an idle communication type, where the signal is used to indicate the communication type. The second network device may use the received information on the communication type of the first network device in the second time period to determine its communication type in the second time period to minimize interference between the two network devices. For example, if the communication type of the first network device is downlink in the second time period, the second network device may determine its communication type to be downlink in the second time period.

A method for controlling inter-cell interference due to sounding reference symbol (SRS) transmission of an inter-cell terminal to which a base station belongs by the base station in a wireless communication system can comprise the steps of: receiving, from an adjacent base station, information relating to a physical resource region causing interference in adjacent cells due to SRS transmission of a terminal, identifier information of the terminal and transmission beam identifier information of the terminal; and allocating a different uplink channel or allocating an SRS corresponding to a transmission beam identifier other than the transmission beam identifier of the terminal to the physical resource region of the terminal.

Methods performed by a wireless device operating in a dormant mode comprise performing a measurement on each of a plurality of resources from a predetermined set of resources or demodulating and decoding information from each of a plurality of resources from a predetermined set of resources, such as a set of beams. The methods further include evaluating the measurement or the demodulated and decoded information for each of the plurality of resources against a predetermined criterion, and then discontinuing the performing and evaluating of measurements, or discontinuing the demodulating and decoding and evaluation of information, in response to determining that the predetermined criterion is met, such that one or more resources in the predetermined set of resources are neither measured nor demodulated and decoded. The methods further comprise deactivating receiver circuitry, further in response to determining that the predetermined criterion is met.

Systems and techniques are provided for performing wireless communications at a user equipment (UE). For example, a process can include transmitting, from a UE based on a cross-link interference (CLI) cancellation capability of a receiver of the UE, a CLI cancellation capability indication. The process can include receiving, at the UE, a communications signal. In some implementations, the UE received the communications signal from a network entity. In some cases, receiving the communications signal from the network entity at least partially coincides with a transmission of an additional communications signal by an additional UE, wherein the additional UE is different from the UE.

A method, apparatus, and computer-readable medium are provided that performs an interference measurement with an enhanced accuracy. The apparatus detects a signal from a serving cell, a neighbor cell, or a second apparatus in the neighbor cell. The apparatus estimates at least one of a downlink-downlink interference and a cross-uplink-downlink interference of the neighbor cell or the second apparatus in the neighbor cell. In another aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided that configures a User Equipment (UE) to perform the interference measurement and receives an interference measurement report from the UE. The apparatus estimates at least one of an uplink-uplink interference and a cross-downlink-uplink interference of the neighbor cell or the second apparatus in the neighbor cell.

Embodiments of the present invention provide an uplink interference processing method, device and system. The method includes: receiving, by a first network device, information about second UE that is transmitted by a second network device; reconstructing uplink air interface data of the second UE according to the information about the second UE when uplink air interface data of the first UE is parsed incorrectly after first uplink air interface data is received, and obtaining the reconstructed uplink air interface data of the second UE; clearing the reconstructed uplink air interface data of the second UE from the first uplink air interface data to obtain second uplink air interface data; and parsing the second uplink air interface data according to information about the first UE, and obtaining a parsing result of the uplink air interface data of the first UE.

An embodiment of the present invention relates to a method for transmitting a synchronization signal in a wireless communication system, the method comprising the steps of: generating a synchronization signal on the basis of a cell ID which is determined depending on whether a terminal for transmitting the synchronization signal is a terminal located outside of a coverage; and transmitting the synchronization signal.

Methods, systems, and devices for wireless communications are described. A wireless device such as a User Equipment (UE) in communication with a serving cell, may perform interference cancellation from an interfering cell. A UE may determine a rank of an unprecoded channel matrix associated with the interfering cell, estimate a traffic-to-pilot ratio (TPR) for an interfering transmission, based in part on a unit-norm property of a plurality of precoding matrix hypotheses for the interfering transmission, calculate respective log-likelihood functions for joint demodulation of the serving and interfering cell transmissions, select a subset of the plurality of precoding matrix hypotheses, and perform joint demodulation of the transmissions to obtain a set of demapped symbols, by assuming a uniform distribution hypothesis for the serving cell transmission, and a Gaussian distribution hypothesis for the interfering transmission.

A user apparatus in a radio communication system including a plurality of base stations, including a reception unit that receives, from a connecting base station, control information to be used for reducing a signal of a control channel, that causes interference, sent from an interference base station for the user apparatus, and an interference reducing unit that reduces the signal of the control channel that causes the interference by using the control information to obtain a desired signal sent from the connecting base station.