The disclosure refers to a method and a base station for communication in a high frequency network are provided. The method includes generating a first beam having a first beamwidth in a first area of a cell, determining a plurality of second beamwidth levels for a plurality of second beams possible in the first beamwidth of the first beam, wherein a second beamwidth associated with each of the plurality of second beams is narrower than the first beamwidth, generating the plurality of second beams having the plurality of determined second beamwidth levels, and transmitting at least one synchronization message to a plurality of user equipments via the first beam and the plurality of second beams.

Channel state feedback is provided from a UE to a base station as a first, detailed or a second, less detailed type of channel state feedback information. Initially it is determined whether the UE has received an uplink grant from the base station or not. If the UE has received an uplink grant, a first type of channel state feedback information is transmitted to the base station on the granted resource. If, however, the UE has not received an uplink grant, a second type of channel state feedback information is transmitted to the base station. Different types of channel state feedback information enables a UE and an associated to base station to use available resources more efficiently, when requesting for and delivering channel state feedback information.

A wireless device may receive at least one control message. The at least one control message may comprise at least one pathloss reference parameter that may indicate a downlink carrier.

According to an example aspect of the present invention, there is provided an apparatus comprising a memory configured to store an indication that the apparatus requires reliable and/or low-latency access to a network, and at least one processing core configured to process an access opportunity pattern, received in the apparatus from a network node, the access opportunity pattern comprising access opportunities provided by a subset of a cluster of cells, detectable by the apparatus, and to trigger for the apparatus reliable and/or low-latency access to the network by selecting from the pattern an access opportunity according to the received access opportunity pattern.

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 invention presents a method for efficiently estimating a physical channel and, according to the present invention, a terminal of a communication system receives a synchronization signal from a base station, receives a broadcast channel from the base station, and can estimate the broadcast channel on the basis of the synchronization signal.

The present disclosure relates to a communication technique of fusing a 5G communication system for supporting higher data transmission rate beyond a 4G system with IoT technology and a system thereof. The present disclosure may be applied to intelligent services (e.g., smart home, smart building, smart city, smart car or connected car, health care, digital education, retail business, security and safety related service, or the like) based on the 5G communication technology and the IoT related technology. The present disclosure discloses a method and an apparatus for transmitting/receiving a random access channel (RACH) according to beam reciprocity (beam correspondence) with a method and an apparatus for supporting various services.

A terminal apparatus includes: a receiver configured to receive a plurality of reference signals from a base station apparatus in a cell; a measurement unit configured to measure at least one reference signal received power (RSRP) of at least one of the plurality of reference signals; and a calculating unit configured to average N highest ones of the at least one RSRP measured to obtain a reference RSRP of the cell.

A method of cell selection/cell reselection and a terminal are provided. The method includes acquiring measurement configuration information of beams, wherein the measurement configuration information includes the number of beams measured by a terminal; measuring the beams based on the measurement configuration information to acquire a measurement result of each beam; performing, based on the measurement result of each beam, the cell selection/cell reselection of a cell in which the terminal camps when the terminal is in an idle state.

A method for selecting a beam includes: receiving positions for monitoring data to be transmitted within a set transmission period are determined. Data to be transmitted sent by a data sending terminal using different beams are monitored at the receiving positions. The data to be transmitted can indicate a transmission beam corresponding to the data. An optimal transmission beam can be determined based on monitoring results.

A system and method for providing time domain allocations in a communication system. In an embodiment, an apparatus operable in a communication system and including processing circuitry is configured to receive an indication of a time domain allocation in downlink control information associated with a radio network temporary identifier (“RNTI”) identifying the apparatus, and employ the time domain allocation associated with the RNTI for transmissions associated with the apparatus. In another embodiment, an apparatus operable in a communication system and including processing circuitry is configured to associate a time domain allocation with a RNTI identifying a user equipment, and provide an indication of the time domain allocation in downlink control information to allow the user equipment to employ the time domain allocation associated with the RNTI for transmissions associated therewith.