The present disclosure relates to telecommunications. In one of its aspects, the disclosure concerns a method in a source User Equipment (UE) for group transmissions in a wireless communications system comprising a group of UEs, including the source UE. The group is assigned a first group IDentity (ID). The source UE has data to be cooperatively transmitted by the group of UEs in a group transmission to a Radio Access Network (RAN) node. The method comprises transmitting, to the group of UEs, a SideLink (SL) message. The SL message comprises the data to be transmitted to the RAN node, a source UE ID identifying the source UE, the first group ID identifying the group of UEs receiving the data and an indicator indicating that the data comprised in the SL message is to be transmitted cooperatively by the group of UEs in a group transmission to the RAN node.

The terminal device (50) includes a communication unit (51) and a control unit (55). The control unit (55) transmits or receives predetermined data a predetermined number of times via the communication unit (51). In addition, the control unit (55) transmits or receives predetermined data a predetermined number of times in cooperation with other terminal devices.

The terminal device (50) includes a communication unit (51) and a control unit (55). The control unit (55) transmits or receives predetermined data a predetermined number of times via the communication unit (51). In addition, the control unit (55) transmits or receives predetermined data a predetermined number of times in cooperation with other terminal devices.

Various aspects to improve a sidelink communication by UEs in a presence of a reconfigurable intelligent surface (RIS) are provided. In an aspect, the UE may determine RIS location information for a RIS device controlled by a base station, configure one or more sidelink communication parameters based on the RIS location information, and perform a sidelink communication with a second UE based on the one or more sidelink communication parameters. In an aspect, the UE may receive, from a base station, a RIS configuration setting indicating communication patterns of a RIS device controlled by the base station, the communication patterns being respectively associated with pattern durations, select a pattern duration of the pattern durations, and perform a sidelink communication with a second UE during the selected pattern duration of the pattern durations that is associated with a respective communication pattern of the communication patterns.

A relay device for relaying communications between a plurality of radio devices that perform radio communications with a terminal and a radio control apparatus that controls the plurality of radio devices, the relay device including a plurality of signal combiners that are each provided for one of functional splitting points between the plurality of radio devices and the radio control apparatus, and are each configured to convert signal data transmitted from one of the plurality of radio devices based on a signal format in accordance with the one of the functional splitting points, and transmit the converted signal data to the radio control apparatus, and a signal switcher configured to output the signal data transmitted from the one of the plurality of radio devices, to one of the plurality of signal combiners supporting one of the functional splitting points that corresponds to the one of the plurality of radio devices.

A relay device for relaying communications between a plurality of radio devices that perform radio communications with a terminal and a radio control apparatus that controls the plurality of radio devices, the relay device including a plurality of signal combiners that are each provided for one of functional splitting points between the plurality of radio devices and the radio control apparatus, and are each configured to convert signal data transmitted from one of the plurality of radio devices based on a signal format in accordance with the one of the functional splitting points, and transmit the converted signal data to the radio control apparatus, and a signal switcher configured to output the signal data transmitted from the one of the plurality of radio devices, to one of the plurality of signal combiners supporting one of the functional splitting points that corresponds to the one of the plurality of radio devices.

Methods and apparatus for using a first number of antennas at one base station, e.g., at a first CBSD, in combination with a second, e.g., lesser number of antennas at another base station to provide different wireless terminals communications channels with different channel conditions are described. A ‘relay mode’ of operation at the second base station facilitates communication of data from the first base station. In this way the second base station is used to relay data sent from the first base station while the UE perceives the data as having been sent over the air by the first base station. The channels from the first and second base stations operate together providing a composite channel that will have different channel conditions than would be possible using simply the antennas of the first base station. Differences in channels to different UEs facilitates transmission scheduling at the first base station.

According to an example aspect of the present invention, there is provided an apparatus comprising at least one processing core, at least one memory including computer program code, the at least one memory and the computer program code being configured to, with the at least one processing core, cause the apparatus at least to receive, from a first beam, information concerning frequency adjustment of a second beam, the second beam being different from the first beam, and apply the information when synchronizing with the second beam, and/or in transmitting to the second beam in an uplink transmission.

According to an example aspect of the present invention, there is provided an apparatus comprising at least one processing core, at least one memory including computer program code, the at least one memory and the computer program code being configured to, with the at least one processing core, cause the apparatus at least to receive, from a first beam, information concerning frequency adjustment of a second beam, the second beam being different from the first beam, and apply the information when synchronizing with the second beam, and/or in transmitting to the second beam in an uplink transmission.

A mobile station including: a communication unit that includes a first logical processing subject and a second logical processing subject that operates in association with the first logical processing subject and performs multiple communications with a first wireless communication apparatus and a second wireless communication apparatus; an accumulation unit that accumulates data received from the second wireless communication apparatus; and a notifying unit that notifies the first wireless communication apparatus of data receiving status in the accumulation unit.