Positioning with split antennas per cell

摘要

In a split antenna system, a radio network node determines an association between a target wireless terminal and an antenna being used to communicate with the target wireless terminal. The radio network node provides an association information and a signal information of properties of a wireless signal used for communication between the antenna to a positioning node. The association information can include the identity of the antenna, which can be encoded in least significant bits of a position measurement included in the signal information. The positioning node determines a position of the target wireless terminal based on the association information and the signal information.

主权项

1. A method performed in a radio network node of a wireless network for determining a position of a target wireless terminal in a cell, the method comprising:
determining that a first antenna of the cell is being used to wirelessly communicate with the target wireless terminal; sending a signal information to a positioning node, the signal information comprising one or more properties of a wireless signal used for the wireless communication between the first antenna and the target wireless terminal; and sending an association information to the positioning node, the association information comprising information associating the first antenna with the target wireless terminal, wherein the radio network node provides wireless communication services in the cell through a plurality of antennas, wherein the plurality of antennas include the first antenna and a second antenna whose radio coverages are decoupled from each other, wherein the target wireless terminal is one of one or more wireless terminals in the cell being provided with the wireless communication services through the plurality of antennas, wherein the radio network node comprises a scheduler that schedules communications between the radio network node and the one or more wireless terminals on a per antenna basis, and wherein the step of determining that the first antenna of the cell is being used to wirelessly communicate with the target wireless terminal comprises determining the association between the first antenna and the target wireless terminal based on the per antenna communications scheduling.