Method and apparatus for transmitting control information in a wireless communication network

A method for transmitting control information in an access node, the method comprising:

• receiving one or more uplink pilots from a user node via a radio link;
• determining, based on the one or more uplink pilots, a location of the user node, and whether the radio link is a line of sight radio link or a non-line of sight radio link;
• when the radio link is a line of sight radio link, determining a position based precoding vector based on the location of the user node;
• precoding a downlink control signal based on the determined position based precoding vector;
• and
• transmitting the precoded downlink control signal to the user node.

A non-transitory computer readable storage medium having stored thereon program instructions that, when executed by a processor, cause a device to:

• receive one or more uplink pilots from a user node via a radio link;
• determine, based on the one or more uplink pilots, a location of the user node, and whether the radio link is a line of sight radio link or a non-line of sight radio link;
• when the radio link is a line of sight radio link, determine a position based precoding vector based on the location of the user node;
• precode a downlink control signal based on the determined position based precoding vector;
• and
• transmit the precoded downlink control signal to the user node.