Method and apparatus for configuring frame structure and frequency hopping for MTC UE in wireless communication system
A method and apparatus for communicating with a machine-type communication (MTC) user equipment (UE) in a wireless communication system is provided. A base station (BS) configures a first MTC transmission time interval (M-TTI) for a first UE and a second M-TTI for a second UE in a subband, and communicates with the first UE and the second UE in the subband by using the first M-TTI and the second M-TTI. In this case, the first UE and the second UE have different coverage enhancement (CE) level from each other.
1. A method for receiving a downlink (DL) channel by a user equipment (UE) in a wireless communication system, the method comprising:
receiving, by the UE from a network, configuration information on a cell-specific frequency hopping interval via system information, wherein the cell-specific frequency hopping interval is configured per coverage enhancement (CE) level of the UE, and wherein the cell-specific frequency hopping interval includes N number of subframes;
receiving, by the UE from the network, the DL channel at a first frequency hopping interval, which is based on the configuration information, in a first subband, wherein the first frequency hopping interval includes N number of subframes; and
receiving, by the UE from the network, the DL channel at a second frequency hopping interval, which is based on the configuration information, in a second subband, wherein the second frequency hopping interval includes N number of subframes,
wherein the first subband and the second subband have different frequency locations in a frequency domain.
2. The method of claim 1 , wherein the cell-specific frequency hopping interval is configured separately for DL and uplink (UL), respectively.
3. The method of claim 1 , wherein the DL channel is repeated across the first frequency hopping interval and the second frequency hopping interval.
4. The method of claim 1 ,
wherein the DL channel is a DL control channel, and
wherein the DL control channel carries at least one downlink control information (DCI).
5. The method of claim 1 ,
wherein the DL channel is a DL data channel, and
wherein the DL data channel carries at least one physical downlink shared channel (PDSCH).
6. A user equipment (UE) in a wireless communication system, the UE comprising:
a memory;
a transceiver; and
a processor, coupled to the memory and the transceiver, that:
controls the transceiver to receive, from a network, configuration information on a cell-specific frequency hopping interval via system information, wherein the cell-specific frequency hopping interval includes N number of subframes, and
controls the transceiver to receive, from a network, a downlink (DL) channel at a first frequency hopping interval, which is based on the configuration information, in a first subband, wherein the first frequency hopping interval includes N number of subframes, and
controls the transceiver to receive, from a network, the DL channel at a second frequency hopping interval, which is based on the configuration information, in a first subband, wherein the second frequency hopping interval includes N number of subframes,
wherein the cell-specific frequency hopping interval is configured per coverage enhancement (CE) level of the UE, and
wherein the first subband and the second subband have different frequency locations in a frequency domain.
7. The UE of claim 6 , wherein the cell-specific frequency hopping interval is configured separately for DL and uplink (UL), respectively.
8. The UE of claim 6 , wherein the DL channel is repeated across the first frequency hopping interval and the second frequency hopping interval.
9. The UE of claim 6 , wherein the DL channel is a DL control channel, and
wherein the DL control channel carries at least one downlink control information (DCI).
10. The UE of claim 6 , wherein the DL channel is a DL data channel, and
wherein the DL data channel carries at least one physical downlink shared channel (PDSCH).