Device and method for wireless communications

An apparatus for wireless communications, comprising:

• circuitry, configured to:
• acquire channel information for transmission object user equipment and non-transmission object user equipment of wireless communications, wherein transmission by the transmission object user equipment is controlled by the apparatus and transmission by the non-transmission object user equipment is not controlled by the apparatus;
• and
• determine, based on the channel information for the transmission object user equipment and the non-transmission object user equipment, a pre-coding matrix for the transmission object user equipment to alleviate interferences to the non-transmission object user equipment.

An apparatus for wireless communications, comprising:

• circuitry, configured to:
• classify communication devices in a cell into cell center communication devices and cell edge communication devices;
• and
• allocate at least part of pilot sequences in a cell center pilot group to the cell center communication devices, and allocate at least part of pilot sequences in a cell edge pilot group to the cell edge communication devices,
• wherein the apparatus and neighboring cells multiplex the cell center pilot group, and the apparatus and the neighboring cells do not multiplex the at least part of pilot sequences in the cell edge pilot group, and
• the apparatus determines, based on pilot sequences in cell edge pilot group of neighbor cells, channel information between the apparatus and communication devices in the neighbor cells.

A method for wireless communications by an apparatus, comprising:

• classifying communication devices in a cell into cell center communication devices and cell edge communication devices;
• allocating at least part of pilot sequences in a cell center pilot group to the cell center communication devices, and allocating at least part of pilot sequences in a cell edge pilot group to the cell edge communication devices;
• and
• determining, based on pilot sequences in cell edge pilot group of neighbor cells, channel information between the apparatus and communication devices in the neighbor cells,
• wherein the cell and neighboring cells multiplex the cell center pilot group, and the cell and the neighboring cells do not multiplex the at least part of pilot sequences in the cell edge pilot group.

A non-transitory computer readable storage medium including executable instructions, which when executed by an apparatus cause the apparatus to execute a method for wireless communication, the method comprising:

• classifying communication devices in a cell into cell center communication devices and cell edge communication devices;
• allocating at least part of pilot sequences in a cell center pilot group to the cell center communication devices, and allocating at least part of pilot sequences in a cell edge pilot group to the cell edge communication devices;
• and
• determining, based on pilot sequences in cell edge pilot group of neighbor cells, channel information between the apparatus and communication devices in the neighbor cells,
• wherein the cell and neighboring cells multiplex the cell center pilot group, and the cell and the neighboring cells do not multiplex the at least part of pilot sequences in the cell edge pilot group.