Method and device for allocating wireless resources for a machine type communication device in a wireless communication system
Provided are a method and device for allocating wireless resources in a wireless communication system. The wireless resource allocating method comprises allocating a machine type communication (MTC)-dedicated wireless resource and a general wireless resource, and communicating with at least one MTC device through the MTC-dedicated wireless resource. Herein, the MTC-dedicated wireless resource supports only the communication with the at least one MTC device, and the MTC-dedicated wireless resource and the general wireless resource may be different from each other.
1. A method for allocating a radio resource in a wireless communication system, the method comprising:
allocating a machine type communication (MTC)-dedicated radio resource and a normal radio resource; and
communicating with at least one MTC device through the MTC-dedicated radio resource,
wherein the MTC-dedicated radio resource supports communication with only the at least one MTC device,
wherein the MTC-dedicated radio resource and the normal radio resource are different radio resources,
wherein the MTC-dedicated radio resource includes at least one MTC-dedicated component carrier (CC),
wherein the normal radio resource includes at least one normal CC,
wherein at least any one of a physical downlink control channel (PDCCH) transmission type, a transmission period of a channel state information reference signal (CSI-RS), and a transmission time interval (TTI) in the at least one MTC-dedicated CC is configured differently from that of the at least one normal CC, and
wherein in the PDCCH transmission type in the at least one MTC-dedicated CC, an interleaving type PDCCH and a non-interleaving type PDCCH are multiplexed and transmitted.
2. The method of claim 1 , wherein information on the at least one MTC-dedicated CC is transmitted through a higher layer.
3. The method of claim 1 , wherein the TTI in the at least one MTC-dedicated CC is longer than 1 ms.
4. The method of claim 1 , wherein the MTC-dedicated radio resource and the normal radio resource are multiplexed in a time division multiplexing (TDM) manner, and
wherein the MTC-dedicated radio resource includes at least one MTC-dedicated subframe.
5. The method of claim 4 , wherein the at least one MTC-dedicated subframe is a multicast broadcast single frequency network (MBSFN) subframe.
6. The method of claim 4 , wherein information on the at least one MTC-dedicated subframe is transmitted through a higher layer or a broadcast channel (BCH) configured only for the MTC device.
7. The method of claim 1 , wherein the MTC-dedicated radio resource and the normal radio resource are multiplexed in a frequency division multiplexing (FDM) manner, and
wherein the MTC-dedicated radio resource includes an MTC-dedicated frequency domain.
8. The method of claim 7 , wherein the MTC-dedicated frequency domain includes at least one physical resource block (PRB) or at least one PRB group including multiple PRBs.
9. The method of claim 7 , wherein the MTC-dedicated frequency domain includes a specific frequency partition.
10. An apparatus for a wireless communication system, the apparatus comprising:
a radio frequency (RF) unit for transmitting or receiving a radio signal; and
a processor coupled to the RF unit, and configured for:
allocating a machine type communication (MTC)-dedicated radio resource and a normal radio resource; and
communicating with at least one MTC device through the MTC-dedicated radio resource,
wherein the MTC-dedicated radio resource supports communication with only the at least one MTC device,
wherein the MTC-dedicated radio resource and the normal radio resource are different radio resources,
wherein the MTC-dedicated radio resource includes at least one MTC-dedicated component carrier (CC),
wherein the normal radio resource includes at least one normal CC,
wherein at least any one of a physical downlink control channel (PDCCH) transmission type, a transmission period of a channel state information reference signal (CSI-RS), and a transmission time interval (TTI) in the at least one MTC-dedicated CC is configured differently from that of the at least one normal CC, and
wherein in the PDCCH transmission type in the at least one MTC-dedicated CC, an interleaving type PDCCH and a non-interleaving type PDCCH are multiplexed and transmitted.