There is disclosed a method of operating a signaling radio node in a wireless communication network. The method includes communicating utilising a signaling beam, the signaling beam being one of a first set of M beams represented or representable by a beam matrix F, wherein the signaling beam is determined based on a beam selection process utilising a second set of N beams represented or representable by a training matrix G, wherein N<M. The disclosure also pertains to related devices and methods.

A method is disclosed for a transmitter apparatus configured to transmit signals to a receiver apparatus using a beam selected from a plurality of available beams, wherein a set of the plurality of available beams is for beam selection measurements by the receiver apparatus. The method comprises determining a collection of linear combinations of beams of the set, wherein the cardinality of the collection is lower than a cardinality of the set, and transmitting each of the linear combinations of beams for beam selection measurements by the receiver apparatus. A method is also disclosed for a receiver apparatus configured to receive signals from a transmitter apparatus via a beam selected from a plurality of available beams. The method comprises receiving a number of measurement signals for beam selection measurements from the transmitter apparatus, wherein the number of measurement signals correspond to a collection of linear combinations of beams of a set of the plurality of available beams, wherein the cardinality of the collection is lower than a cardinality of the set, and performing beam selection measurements on the number of measurement signals for selection of the beam from the plurality of available beams. Corresponding transmitter apparatus, receiver apparatus, network node, wireless communication device and computer program products are also disclosed.

A beam sweep configuration of at least one beam sweep is exchanged between nodes of a network. The beam sweep configuration may be indicative of a time-duplex configuration of a plurality of beams of the at least one beam sweep. A beam configuration may be determined based on a receive property of pilot signals transmitted and/or received in the beam sweep.

Apparatuses and methods for transmitting or receiving a signal or a channel. A method for operating a user equipment (UE) to receive the signal or the channel includes receiving a configuration for spatial filters, determining first and second spatial filters from the spatial filters, and determining first and second numbers of repetitions. The spatial filters correspond to spatial relations with reference signals (RSs), respectively. The first and second spatial filters are different. The first and second numbers of repetitions are different. The method further includes transmitting the signal or the channel using the first spatial filter for the first number of repetitions and using the second spatial filter for the second number of repetitions. The second number of repetitions is transmitted after the first number of repetitions.

A method for configuring transmission order of uplink data, the method performed by a radio equipment (“RE”) of an access node. The RE has a RE controller (“REC”)-RE interface that communicatively couples the RE with a REC of the access node. The method includes receiving instructions from the REC that indicate a scheduling prioritization for transmission by the RE of uplink data between the RE and the REC over the REC-RE interface. The uplink data can be received by the RE on the radio interface. The method can further include transmitting the uplink data on the REC-RE interface according to the instructions, resulting in the scheduling prioritization of the uplink data.

Provided are a method for transmitting a multimedia broadcast multicast service (MBMS) interest indication message by a terminal in a wireless communication system and an apparatus for supporting the same. The method may comprise the steps of: receiving MBMS scheduling information from a base station; selecting at least one beam among a plurality of beams; on the basis of the MBMS scheduling information, determining whether an MBMS service of interest is provided via the at least one selected beam; and when the terminal determines that the MBMS service of interest is not provided via the at least one selected beam, transmitting, to the base station, an MBMS interest indication message including the MBMS service of interest and the at least one selected beam.

Blockage of a mmWave communication link, due to movement of one or both of the wireless devices, and/or movement of an obstacle, is predicted. An environment is monitored by imaging devices, which may be fixed or mobile, and may be on the wireless devices. Objects in the environment are detected and their motion tracked from the image data. Based on the motion of the wireless device(s) and/or an obstacle, a link blockage eventwhereby an obstacle interrupts communications on the linkis predicted, and a start time is estimated. Prior to the start time, directional antenna beams of both wireless devices are directed to a passive reflector, and the mmWave communication link is routed around the obstacle. Passive reflectors may be deployed through the environment. They may be moveable in angle and tilt to assist in avoiding link blockage. Beam re-training is performed on a group of directional antenna beam pairs directed towards the passive reflector. The directional antenna beam pairs are ranked by a channel quality metric, such as SINR, and a pair is chosen for use during the blockage (two pairs for duplex links). A different frequency may be used for the blockage avoidance communication link, reducing interference and allowing the same passive reflector to be used by more than one wireless communication link. The wireless communication link is transferred to the re-trained direction antenna beams, directed to a passive reflector, prior to the start of the link blockage event. For the duration of blockage, the wireless devices communicate via the passive reflector, without loss or interruption, which is critical in URLLC use cases.

The present disclosure relates to an electronic device, a communication method and a storage medium in a wireless communication system. There is provided an electronic device on side of a base station, comprising a processing circuitry configured to: determine a first beam for a first transport channel between the base station and an UE; send, to the UE, a dynamic signaling including beam indication information on the first beam, such that a beam for the first transport channel is updated to the first beam; and in a case where the updating of the beam for the first transport channel is successful, update a beam for a second transport channel and/or a reference signal between the base station and the UE to the first beam.

There is provided mechanisms for performing a beam selection process. A method is performed by a network node. The method comprises transmitting reference signals during the beam selection process. The beam selection process involves two consecutive beam sweeps to be performed using a set of direction beams. During each of the two consecutive beam sweeps the reference signals are sequentially transmitted in the set of direction beams as the directional beams are swept. During the two consecutive beam sweeps, the reference signals are in a first subset of the directional beams transmitted with a first polarization, and the reference signals are in a second subset of the directional beams transmitted with a second polarization.

The present disclosure provides a communication apparatus and a communication method for enhancing uplink transmission with multiple beams. The communication apparatus comprises: a transceiver, which in operation, receives control information indicating two or more beams for uplink transmissions; and circuitry, which in operation, uses the two or more beams for a plurality of uplink transmission occasions in response to meeting at least one condition for beam switching based on the control information.