Apparatus and method for scheduling in a relay system

摘要

An apparatus and a method for scheduling and a power control of a relay system that is capable of stable operation an environment where sufficient isolation between antennas is not ensured. The apparatus includes a scheduler for allocating resources to a zone not experiencing inter-antenna interference in an initial resource allocation, classifying users based on vulnerability to the interference, and allocating resources to a zone experiencing the interference, and a power controller for setting the resources of the zone experiencing the interference to a lower power than the resources of the zone not experiencing the interference to minimize the inter-antenna interference.

主权项

1. An apparatus for a relay station including a plurality of antennas, the apparatus comprising:
at least one transceiver; a scheduler configured to, if a number of terminals performing a communication with the relay station does not exceed a determined amount, allocate resources to a first zone for the communication, and if the number of terminals performing the communication with the relay station exceeds the determined amount, allocate the resources to a second zone for the communication; and a power controller configured to determine a first power of a first signal or a second power of a second signal in the second zone based on a predetermined signal to inter-antenna interference ratio (SIR) and a predetermined isolation level between a first antenna of the relay station and the second antenna of the relay station, wherein the first zone has a lower inter-antenna interference between antennas than the second zone, wherein the inter-antenna interference indicates an interference between the first antenna and the second antenna, and wherein the inter-antenna interference results from the first signal which is transmitted from the first antenna and is received through the second antenna while the relay station receives the second signal from a terminal or an upper node using the second antenna.