Method and apparatus for allocating resources in a multi-node system
Provided are a method and apparatus for allocating resources in a multi-node system that includes a plurality of nodes and a base station connected to each of the nodes to control the nodes. The method comprises: partitioning radio resources into a node-common region and a node-specific region, and allocating the node-common region and the node-specific region to the plurality of nodes, wherein a common resource allocation scheme is applied to the plurality of nodes in the node-common region, and different resource allocation schemes are applied to the plurality of nodes in the node-specific region.
1. A method of allocating resources in a multi-node system comprising a plurality of nodes and a base station connected to the plurality of nodes and capable of controlling the plurality of nodes, the method comprising:
partitioning radio resources into a node-common region and a node-specific region in a frequency domain, and
allocating the node-common region and the node-specific region to the plurality of nodes,
wherein, in the node-common region, a common resource allocation scheme is applied to the plurality of nodes, and, in the node-specific region, different resource allocation schemes are applied to the plurality of nodes,
wherein the plurality of nodes transmit, through the node-common region, control information and data for a first user equipment (UE) which is operated in a centralized antenna system,
wherein the plurality of nodes transmit, through the node-specific region, control information and data for a second UE which is operated in a distributed antenna system,
wherein the radio resources are divided into a control region to which a control channel is allocated and a data region to which a data channel is allocated in a time domain,
wherein the node-common region is included in the control region, and the node-specific region is included in the data region, and
wherein a start location of the node-specific region is indicated through a higher layer signal.
2. The method of claim 1 , wherein:
a node-common signal common to the plurality of nodes is transmitted in the node-common region, and
a node-specific signal specific to each of the plurality of nodes is transmitted in the node-specific region.
3. The method of claim 1 , wherein:
the radio resources comprise a plurality of frequency partitions in a frequency domain, and
some frequency partitions of the plurality of frequency partitions are allocated to the node-common region and remaining frequency partitions are allocated to the node-specific region.
4. The method of claim 3 , wherein a number of the plurality of frequency partitions is 4.
5. The method of claim 3 , wherein a ratio of frequency partitions allocated to the node-common region to frequency partitions allocated to the node-specific region, from among the plurality of frequency partitions, is identical in all the plurality of nodes.
6. The method of claim 3 , wherein, in the frequency partitions allocated to the node-common region, an identical resource unit permutation is applied to the plurality of nodes.
7. The method of claim 6 , wherein, in the frequency partitions allocated to the node-specific region, different resource unit permutations are applied to the plurality of nodes in the frequency partitions allocated to the node-specific region.
8. An apparatus for allocating resources in a multi-node system connected to a plurality of nodes and capable of controlling the plurality of nodes, the apparatus comprising:
a Radio Frequency (RF) unit transmitting and receiving radio signals; and
a processor coupled with the RF unit and generating a radio signal,
wherein the processor partitions radio resources into a node-common region and a node-specific region in a frequency domain, allocates the node-common region and the node-specific region to the plurality of nodes, applies, in the node-common region, a common resource allocation scheme to the plurality of nodes, and applies, in the node-specific region, different resource allocation schemes to the plurality of nodes,
wherein the plurality of nodes transmit, through the node-common region, control information and data for a first user equipment (UE) which is operated in a centralized antenna system,
wherein the plurality of nodes transmit, through the node-specific region, control information and data for a second UE which is operated in a distributed antenna system,
wherein the radio resources are divided into a control region to which a control channel is allocated and a data region to which a data channel is allocated in a time domain,
wherein the node-common region is included in the control region, and the node-specific region is included in the data region, and
wherein a start location of the node-specific region is indicated through a higher layer signal.