Radio network node and a method therein

摘要

A method in a radio network node for communicating with a user equipment (UE) during communication between the radio network node and a radio base station in a radio communications network. The radio network node serves the UE within a cell and communicates with the radio base station and the UE over a frequency spectrum in a time division duplexing configuration. The radio network node sets up a first connection over a first part of the frequency spectrum to the radio base station, and a second connection to the UE over the first or a second part of the frequency spectrum. The second part of the frequency spectrum is solely used for communication with UEs within the cell. The radio network node then communicates simultaneously with the UE and the radio base station over respective connections in a time slot of a reference time configured by the radio communications network.

主权项

1. A method in a radio network node for communicating with a user equipment during a communication between the radio network node and a radio base station in a radio communications network, wherein the radio network node, the radio base station and the user equipment are comprised in the radio communications network, the radio network node serves the user equipment within a cell and is configured to communicate with the radio base station and the user equipment over a frequency spectrum in a time division duplexing configuration, the method comprising:
setting up a first connection over a first part of the frequency spectrum to the radio base station, and a second connection to the user equipment over the first or a second part of the frequency spectrum, wherein the second part of the frequency spectrum is solely used for communication with user equipments within the cell; determining that the first connection to the radio base station supports a transmission rank higher than a one layer transmission; reporting back to the radio base station that the first connection supports a reported transmission rank, wherein the reported transmission rank is lower than the determined transmission rank; identifying that the second connection to the user equipment supports a transmission rank higher than a one layer transmission; and communicating simultaneously with the user equipment and the radio base station over respective connection in a time slot of a reference time configured by the radio communications network, wherein the communicating is performed at the time slot, wherein the time slot is then used for simultaneously transmitting data to the radio base station and the user equipment or simultaneously receiving data from the radio base station and the user equipment.