Method and apparatus for transmitting and receiving a signal in a wireless communication system using resource block structure
The present disclosure relates to a 5G or pre-5G communication system to be provided to support a higher data transmission rate since 4G communication systems like LTE. The present disclosure provides a transmission and reception method applying a special resource block structure in a scalable frame structure to integrally support various services in a cellular wireless communication system. According to the present disclosure, it is possible to minimize interference between adjacent resource blocks due to heterogeneous subcarrier spacings between the 5G system and the LTE system or the 5G system to improve system performance.
1. A signal transmission and reception method of a terminal in a mobile communication system, comprising: acquiring first information associated with a subcarrier spacing applied to the terminal; obtaining second information associated with a predetermined type of resource block for the subcarrier spacing, wherein the predetermined type of resource block includes at least one subcarrier and a predetermined number of null subcarrier; determining at least one of a resource block of a lowest frequency among scheduled resource blocks and a resource block of a highest frequency among the scheduled resource blocks as the predetermined type of resource block, the predetermined type of resource block is determined based on an indicator, indicating whether the predetermined type of resource block is included in the scheduled resource blocks, included in the second information; and transmitting and receiving data using the at least one subcarrier based on the second information.
2. The signal transmission and reception method of claim 1 , wherein the second information is transmitted by radio resource control (RRC) signaling.
3. The signal transmission and reception method of claim 1 , wherein the second information is transmitted by being included in downlink control information (DCI) through a physical downlink control channel (PDCCH).
4. The signal transmission and reception method of claim 1 , further comprising:
identifying a configuration of the predetermined type of resource block based on location information of the predetermined type of resource block and information on the number of null subcarrier; or
identifying the configuration of the predetermined type of resource block based on de-modulation reference signal (DMRS) pattern information,
wherein the second information includes:
the information on the number of null sub carrier; and
the DMRS pattern information or the location information of the predetermined type of resource block.
5. A signal transmission and reception method of a base station in a mobile communication system, comprising: transmitting first information associated with a subcarrier spacing applied to a terminal to the terminal; transmitting second information associated with a predetermined type of resource block for the subcarrier spacing, wherein the predetermined type of resource block includes at least one subcarrier and a predetermined number of null subcarrier, and wherein at least one of a resource block of a lowest frequency among scheduled resource blocks and a resource block of a highest frequency among the scheduled resource blocks is determined as the predetermined type of resource block, the predetermined type of resource block is determined based on an indicator, indicating whether the predetermined type of resource block is included in the scheduled resource blocks, included in the second information; and transmitting and receiving data using the at least one subcarrier based on the second information.
6. The signal transmission and reception method of claim 5 , wherein the second information is transmitted by radio resource control (RRC) signaling.
7. The signal transmission and reception method of claim 5 , wherein the second information is transmitted by being included in downlink control information (DCI) through a physical downlink control channel (PDCCH).
8. A terminal in a mobile communication system, comprising: a transceiver; and a controller configured to: acquire first information on a subcarrier spacing applied to the terminal, obtain second information associated with a predetermined type of resource block for the subcarrier spacing from a base station, wherein the predetermined type of resource block includes at least one subcarrier and a predetermined number of null subcarrier; determine at least one of a resource block of a lowest frequency among scheduled resource blocks and a resource block of a highest frequency among the scheduled resource blocks as the predetermined type of resource block, the predetermined type of resource block is determined based on an indicator, indicating whether the predetermined type of resource block is included in the scheduled resource blocks, included in the second information; and transmit and receive data using the at least one subcarrier based on the second information.
9. The terminal of claim 8 , wherein the second information is transmitted by radio resource control (RRC) signaling.
10. The terminal of claim 8 , wherein the second information is transmitted by being included in downlink control information (DCI) through a physical downlink control channel (PDCCH).
11. The terminal of claim 8 , wherein the controller is further configured to:
identify a configuration of the predetermined type of resource block based on location information of the predetermined type of resource block and information on the number of null subcarrier; or
identify the configuration of the predetermined type of resource block based on de-modulation reference signal (DMRS) pattern information,
wherein the second information includes:
the information on the number of null sub carrier; and
the DMRS pattern information or the location information of the predetermined type of resource block.
12. A base station in a mobile communication system, comprising: a transceiver; and a controller configured to: transmit first information associated with a subcarrier spacing applied to a terminal to the terminal, transmit second information associated with a predetermined type of resource block for the subcarrier spacing, wherein the predetermined type of resource block includes at least one subcarrier and a predetermined number of null subcarrier, and wherein at least one of a resource block of a lowest frequency among scheduled resource blocks and a resource block of a highest frequency among the scheduled resource blocks is determined as the predetermined type of resource block, the predetermined type of resource block is determined based on an indicator, indicating whether the predetermined type of resource block is included in the scheduled resource blocks, included in the second information; and transmit and receive data using the at least one subcarrier based on the second information.
13. The base station of claim 12 , wherein the second information is transmitted by radio resource control (RRC) signaling.
14. The base station of claim 12 , wherein the second information is transmitted by being included in downlink control information (DCI) through a physical downlink control channel (PDCCH).