Method of transmitting or receiving downlink control information including resource allocation information and apparatus therefor
According to an embodiment, a user equipment (UE) receives downlink control information (DCI) through a physical downlink control channel (PDCCH), determines a downlink resource allocated to the UE based on a frequency domain resource allocation (FDRA) field included in the DCI, and receives a physical downlink shared channel (PDSCH) in the downlink resource, and in this case, based on that a first bandwidth of the UE supported for the PDCCH is different from a second bandwidth of the UE supported for the PDSCH, the UE determines the downlink resource allocated through the FDRA field based on the second bandwidth other than the first bandwidth.
1 . A method performed by a user equipment (UE), the method comprising:
receiving, through a downlink control channel, downlink control information including a first field for frequency domain resource allocation and a second field for time domain resource allocation;
determining a downlink resource allocated to the UE based on the first field and the second field; and
receiving a first downlink data channel in the downlink resource,
wherein the downlink control information schedules a plurality of downlink data channels including the first downlink data channel,
wherein the plurality of downlink data channels are transmitted in a plurality of sub-bandwidths which are frequency divisionally multiplexed in a bandwidth for the downlink control channel, and
wherein a first sub-bandwidth for the first downlink data channel is determined among the plurality of sub-bandwidths based on a UE identification configured in the UE.
2 . The method of claim 1 , wherein a size of the bandwidth of the downlink control channel is 20 MHZ, and a size of each sub-bandwidth is 5 MHz.
3 . The method of claim 1 , wherein the UE determines the frequency domain resource allocation of the first field based on a location of the first sub-bandwidth.
4 . The method of claim 1 , wherein a total number of resource block groups related to the first downlink data channel and physical resource blocks are determined based on the first sub-bandwidth.
5 . A non-transitory processor-readable recording medium having recorded thereon a program for performing the method of claim 1 .
6 . The method of claim 1 , wherein the same time domain resource allocation is applied for the plurality of the downlink data channels.
7 . A device comprising:
a memory configured to store instructions; and
a processor configured to perform operations by executing the instructions,
wherein the operations of the processor comprise:
receiving, through a downlink control channel, downlink control information including a first field for frequency domain resource allocation and a second field for time domain resource allocation;
determining a downlink resource allocated to the device based on the first field and the second field; and
receiving a first downlink data channel in the downlink resource; and
wherein the downlink control information schedules a plurality of downlink data channels including the first downlink data channel,
wherein the plurality of downlink data channels are transmitted in a plurality of sub-bandwidths which are frequency divisionally multiplexed in a bandwidth for the downlink control channel, and
wherein a first sub-bandwidth for the first downlink data channel is determined among the plurality of sub-bandwidths based on a UE identification configured in the device.
8 . The device of claim 7 , further comprising:
a transceiver configured to transmit and receive a wireless signal under control of the processor,
wherein the device is a user equipment (UE).
9 . The device of claim 7 , wherein the device is an application specific integrated circuit (ASIC) or a digital signal processing device.
10 . A base station (BS) comprising:
a memory configured to store instructions; and
a processor configured to perform operations by executing the instructions,
wherein the operations of the processor comprise:
transmitting, to a user equipment (UE), through a downlink control channel, downlink control information including a first field for frequency domain resource allocation and a second field for time domain resource allocation; and
transmitting a first downlink data channel in a downlink resource allocated to the UE based on the first field and the second field,
wherein the downlink control information schedules a plurality of downlink data channels including the first downlink data channel,
wherein the plurality of downlink data channels are transmitted in a plurality of sub-bandwidths which are frequency divisionally multiplexed in a bandwidth for the downlink control channel, and
wherein a first sub-bandwidth for the first downlink data channel is determined among the plurality of sub-bandwidths based on a UE identification configured in the UE.