Joint transmissions of data in a wireless communication system using a non-orthogonal multiple access transmission scheme

A transmission/reception point (TRP) for a wireless communication system data, the wireless communication system comprising a plurality of user equipments and a plurality of transmission/reception points (TRPs), the plurality of TRPs comprising at least a first TRP and a second TRP,

• wherein the TRP is to transmit or receive data of a first user equipment and of a second user equipment, the first user equipment being a member of a first group of user equipments, the first group including
• two or more user equipments for which second order channel statistics for at least one channel parameter between the first and second TRPs and the user equipment are within a first range, or
• two or more user equipments which are in a first geographical area or coverage footprint relative to the first and second TRPs, and the second user equipment being a member of a second group of user equipments, the second group including
• two or more user equipments for which second order channel statistics for at least one channel parameter between the first and second TRPs and the user equipment are within a second range, or
• two or more user equipments which are in a second geographical area or coverage footprint relative to the first and second TRPs, and wherein, for transmitting or receiving data of the first user equipment and of the second user equipment, the TRP is to
• transmit or receive a first superimposed signal using first resources and comprising a data signal of the first user equipment superimposed with a data signal of the second user equipment, the first resources being orthogonal to second resources used by further user equipments of the first and second groups, and
• transmit or receive a second superimposed signal using the first resources and comprising a further data signal of the second user equipment superimposed with a further data signal first user equipment.

A method for transmitting or receiving data of a user equipment in a wireless communication system data,

• wherein the wireless communication system comprises a plurality of user equipments and a plurality of transmission/reception points, TRPs, the plurality of TRPs comprising at least a first TRP and a second TRP,
• wherein the user equipment is a member of a group of user equipments, the group including
• two or more user equipments for which second order channel statistics for at least one channel parameter between the first and second TRPs and the user equipment are within a certain range, or
• two or more user equipments which are in a certain geographical area or coverage footprint relative to the first and second TRPs, and
• wherein the method comprises:
• communicating with the first and second TRPs using first resources, the first resources being orthogonal to second resources used by another user equipment of the group, and
• for transmitting or receiving data of the user equipment
• transmitting to or receiving from the first TRP a first superimposed signal using resources of the first TRP and comprising a data signal of the user equipment superimposed with a data signal of a further user equipment being a member of a further group of user equipments, and
• transmitting to or receiving from the second TRP a second superimposed signal using resources of the second TRP and comprising a further data signal of the further user equipment superimposed with a further data signal of the user equipment.