Downlink signal receiving method and user equipment, and downlink signal transmission method and base station
First downlink scheduling information for a first subframe and second downlink scheduling information for a second subframe can be transmitted and received in the first subframe. A first type downlink data channel can be transmitted and received in the first subframe according to the first downlink scheduling information, and a second type downlink data channel can be transmitted and received in the second subframe according to the second downlink scheduling information. Each of the first subframe and the second subframe may comprise a downlink control region and a data region in a time domain. The first downlink scheduling information and the second downlink scheduling information can be transmitted and received in the downlink control region of the first subframe. The first type downlink data channel is transmitted and received in the data area of the first subframe, and the second type downlink data channel can be transmitted and received in the downlink control region of the second subframe. The data area of the first subframe and the downlink control area of the second subframe can be continuous with each other.
1. A method of receiving a downlink (DL) signal by a user equipment (UE), the method comprising:
receiving first DL scheduling information for a first time interval and second DL scheduling information for a second time interval in the first time interval; and
receiving a first type DL data channel in the first time interval according to the first DL scheduling information and receiving a second type DL data channel in the second time interval according to the second DL scheduling information,
wherein each of the first time interval and the second time interval includes a DL control region and a data region in a time domain,
the first DL scheduling information and the second DL scheduling information are received in the DL control region of the first time interval,
the first type DL data channel is received in the data region of the first time interval,
the second type DL data channel is received in the DL control region of the second time interval, and
the data region of the first time interval and the DL control region of the second time interval are consecutive, and
wherein the first DL scheduling information indicates a resource for the first type DL data channel as an integer multiple of a data resource allocation unit and the second DL scheduling information represents a resource for the second type DL data channel as an integer multiple of a DL control channel allocation unit.
2. The method of claim 1 , wherein the first DL scheduling information and the second DL scheduling information are received in one DL grant message.
3. The method of claim 1 , wherein the second type DL data channel occupies fewer time symbols than that of the first type DL data channel, occupies a longer frequency length in a frequency domain than that of the first type DL data channel, carries a smaller transport block size than that of the first type DL data channel, or has shorter transmission delay than that of the first type DL data channel.
4. The method of claim 1 , further comprising:
receiving first UL scheduling information for a third time interval and second UL scheduling information for a fourth time interval in the third time interval; and
transmitting a first type UL data channel in the third time interval according to the first UL scheduling information and transmitting a second type UL data channel in the fourth time interval according to the second UL scheduling information,
wherein the third time interval includes a DL control region, a data region, and a UL control region in the time domain and the fourth time interval includes a data region in the time domain,
the first UL scheduling information and the second UL scheduling information are received in the DL control region of the third time interval,
the first type UL data channel is transmitted in the UL control region of the third time interval,
the second type UL data channel is transmitted in the data region of the fourth time interval, and
the UL control region of the third time interval and the data region of the fourth time interval are consecutive.
5. The method of claim 4 , wherein the first type UL data channel occupies fewer time symbols than that of the second type UL data channel, occupies a longer frequency length in a frequency domain than that of the second type UL data channel, carries a smaller transport block size than that of the second type UL data channel, or has shorter transmission delay than that of the second type UL data channel.
6. A user equipment (UE) for receiving a downlink (DL) signal, the UE comprising:
a radio frequency (RF) transceiver, and
a processor configured to control the RF transceiver,
wherein the processor:
controls the RF transceiver to receive first DL scheduling information for a first time interval and second DL scheduling information for a second time interval in the first time interval; and
controls the RF transceiver to receive a first type DL data channel in the first time interval according to the first DL scheduling information and receive a second type DL data channel in the second time interval according to the second DL scheduling information,
wherein each of the first time interval and the second time interval includes a DL control region and a data region in a time domain,
wherein the processor controls the RF transceiver to receive the first DL scheduling information and the second DL scheduling information in the DL control region of the first time interval, controls the RF transceiver to receive the first type DL data channel in the data region of the first time interval, and controls the RF transceiver to receive the second type DL data channel in the DL control region of the second time interval,
wherein the data region of the first time interval and the DL control region of the second time interval are consecutive, and
wherein the first DL scheduling information indicates a resource for the first type DL data channel as an integer multiple of a data resource allocation unit and the second DL scheduling information represents a resource for the second type DL data channel as an integer multiple of a DL control channel allocation unit.
7. The UE of claim 6 , wherein the first DL scheduling information and the second DL scheduling information are received in one DL grant message.
8. The UE of claim 6 , wherein the second type DL data channel occupies fewer time symbols than that of the first type DL data channel, occupies a longer frequency length in a frequency domain than that of the first type DL data channel, carries a smaller transport block size than that of the first type DL data channel, or has shorter transmission delay than that of the first type DL data channel.
9. The UE of claim 6 ,
wherein the processor:
controls the RF transceiver to receive first UL scheduling information for a third time interval and second UL scheduling information for a fourth time interval in the third time interval; and
control the RF transceiver to transmit a first type UL data channel in the third time interval according to the first UL scheduling information and transmit a second type UL data channel in the fourth time interval according to the second UL scheduling information,
wherein the third time interval includes a DL control region, a data region, and a UL control region in the time domain and the fourth time interval includes a data region in the time domain,
wherein the processor controls the RF transceiver to receive the first UL scheduling information and the second UL scheduling information in the DL control region of the third time interval, controls the RF transceiver to transmit the first type UL data channel in the UL control region of the third time interval, and controls the RF transceiver to transmit the second type UL data channel in the data region of the fourth time interval, and
wherein the UL control region of the third time interval and the data region of the fourth time interval are consecutive.
10. The UE of claim 9 , wherein the first type UL data channel occupies fewer time symbols than that of the second type UL data channel, occupies a longer frequency length in a frequency domain than that of the second type UL data channel, carries a smaller transport block size than that of the second type UL data channel, or has shorter transmission delay than that of the second type UL data channel.
11. A method of transmitting a downlink (DL) signal by a base station (BS), the method comprising:
transmitting first DL scheduling information for a first time interval and second DL scheduling information for a second time interval in the first time interval; and
transmitting a first type DL data channel in the first time interval according to the first DL scheduling information and transmitting a second type DL data channel in the second time interval according to the second DL scheduling information,
wherein each of the first time interval and the second time interval includes a DL control region and a data region in a time domain,
the first DL scheduling information and the second DL scheduling information are transmitted in the DL control region of the first time interval,
the first type DL data channel is transmitted in the data region of the first time interval,
the second type DL data channel is transmitted in the DL control region of the second time interval,
the data region of the first time interval and the DL control region of the second time interval are consecutive, and
wherein the first DL scheduling information indicates a resource for the first type DL data channel as an integer multiple of a data resource allocation unit and the second DL scheduling information represents a resource for the second type DL data channel as an integer multiple of a DL control channel allocation unit.
12. A base station (BS) for transmitting a downlink (DL) signal, the BS comprising:
a radio frequency (RF) transceiver, and
a processor configured to control the RF transceiver,
wherein the processor:
controls the RF transceiver to transmit first DL scheduling information for a first time interval and second DL scheduling information for a second time interval in the first time interval; and
controls the RF transceiver to transmit a first type DL data channel in the first time interval according to the first DL scheduling information and transmit a second type DL data channel in the second time interval according to the second DL scheduling information,
wherein each of the first time interval and the second time interval includes a DL control region and a data region in a time domain,
the first DL scheduling information and the second DL scheduling information are transmitted in the DL control region of the first time interval,
the first type DL data channel is transmitted in the data region of the first time interval,
the second type DL data channel is transmitted in the DL control region of the second time interval,
the data region of the first time interval and the DL control region of the second time interval are consecutive, and
wherein the first DL scheduling information indicates a resource for the first type DL data channel as an integer multiple of a data resource allocation unit and the second DL scheduling information represents a resource for the second type DL data channel as an integer multiple of a DL control channel allocation unit.