Provided herein are method and apparatus for perform radio link monitoring (RLM) based on a Reference signal (RS). An embodiment provides a user Equipment (UE) comprising circuitry configured to: decode a Reference Signal (RS) received from an access node; and determine beam quality for one or more beam pair links (BPLs) of the RS between the UE and the access node based on the decoded RS, wherein each of the BPLs comprises a transmit (Tx) beam of the access node and a receive (Rx) beam of the UE. Also provided is a procedure of RLM. At least some embodiments allow for beam recovery request for UE beam refinement, and allow for determining whether radio link failure (RLF) occurs.

The present disclosure provides a measurement method, user equipment, and a network side device. The method includes receiving first measurement configuration information sent by a network side device, and performing measurement in an inactive mode based on the first measurement configuration information, to obtain a measurement result, where the first measurement configuration information is used at least in the inactive mode.

This application provides a measurement method and a measurement apparatus. The measurement method includes: adding, by a network device, information about one frequency band or a plurality of frequency bands to measurement configuration information delivered to a terminal device; determining, by the terminal device, a corresponding radio frequency link channel configuration parameter by using the information about the one frequency band or the plurality of frequency bands; and measuring, by the terminal device, a measurement object based on the radio frequency link channel configuration parameter, and reporting a measurement result to the network device.

The present disclosure provides a method for reporting measurement quantities, a method for determining measurement quantities, and devices. The method comprises: a terminal device determines measurement quantities of K signals, the measurement quantities comprising RSRQ and/or SINRs; and the terminal device reports the measurement quantities of the K signals to a network device, wherein K is a positive integer.

The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The present disclosure provides a priority of CSI reporting in a mobile communication system, and provides a method in which a UE performs CSI reporting with high priority according to the priority. The method includes receiving channel state information (CSI) feedback configuration information from a base station; identifying a CSI reporting to be performed based on the CSI feedback configuration information, as a result of two CSI reportings overlapping; and performing the identified CSI reporting to the base station. The CSI reporting is identified based on types of CSI reportings, and a CSI reporting associated with a reference signal received power (RSRP) is prioritized over a CSI reporting that is not associated with the RSRP.

The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The present disclosure provides a priority of CSI reporting in a mobile communication system, and provides a method in which a UE performs CSI reporting with high priority according to the priority. The method includes receiving channel state information (CSI) feedback configuration information from a base station; identifying a CSI reporting to be performed based on the CSI feedback configuration information, as a result of two CSI reportings overlapping; and performing the identified CSI reporting to the base station. The CSI reporting is identified based on types of CSI reportings, and a CSI reporting associated with a reference signal received power (RSRP) is prioritized over a CSI reporting that is not associated with the RSRP.

The present disclosure provides a method for measuring an amount of interference from an antenna, the method comprising the operations of: receiving at least on reference symbol; calculating a reference symbol NI, which is the antenna-related noise interference (NI) in the at least one reference symbol, on the basis of the at least one reference symbol; receiving at least one data symbol; calculating a data symbol NI, which is the antenna-related NI in the data symbol, on the basis of the at least one data symbol; calculating an NI ratio of the antenna which is the ratio of the data symbol NI relative to the reference symbol NI; and determining an antenna weight of the antenna on the basis of the NI ratio.

The present disclosure provides a method for measuring an amount of interference from an antenna, the method comprising the operations of: receiving at least on reference symbol; calculating a reference symbol NI, which is the antenna-related noise interference (NI) in the at least one reference symbol, on the basis of the at least one reference symbol; receiving at least one data symbol; calculating a data symbol NI, which is the antenna-related NI in the data symbol, on the basis of the at least one data symbol; calculating an NI ratio of the antenna which is the ratio of the data symbol NI relative to the reference symbol NI; and determining an antenna weight of the antenna on the basis of the NI ratio.

A method of a user equipment (UE) in a wireless communication system is provided. The method comprises: receiving, from a base station (BS), configuration information for a power control of a sidelink and a downlink reference signal (RS) to measure a downlink channel from the BS, wherein the sidelink is established between the UE and another UE; receiving, from the BS, the downlink RS based on the configuration information; calculating a first pathloss for the downlink channel between the UE and the BS based on the configuration information; identifying a second pathloss for the sidelink between the UE and the other UE; and transmitting, to the other UE, a physical sidelink shared channel (PSSCH) and a physical sidelink control channel (PSCCH) based on the first pathloss and the second pathloss.

A method of a user equipment (UE) in a wireless communication system is provided. The method comprises: receiving, from a base station (BS), configuration information for a power control of a sidelink and a downlink reference signal (RS) to measure a downlink channel from the BS, wherein the sidelink is established between the UE and another UE; receiving, from the BS, the downlink RS based on the configuration information; calculating a first pathloss for the downlink channel between the UE and the BS based on the configuration information; identifying a second pathloss for the sidelink between the UE and the other UE; and transmitting, to the other UE, a physical sidelink shared channel (PSSCH) and a physical sidelink control channel (PSCCH) based on the first pathloss and the second pathloss.