Transmission and reception method and apparatus for transmitting signal using narrowband in wireless cellular communication system
Provided are a communication method and system that combine IoT technologies with 5G communication systems supporting a higher data rate after 4G systems. The present disclosure may be applied to intelligent services, such as smart homes, smart buildings, smart cities, smart or connected cars, healthcare, digital education, retail businesses, and security and safety related services on the basis of 5G communication technologies and IoT related technologies. The present invention relates to a wireless communication system, and more particularly, to a method and apparatus for transmitting uplink and downlink signals in a system supporting IoT terminals that perform transmission and reception using only one subcarrier. Specifically, there is provided a method including: allocating a resource for an IoT terminal; and exchanging a signal through a specific subcarrier of the resource between the IoT terminal and the base station supporting the IoT terminal.
1. A method for a base station to transmit and receive signals, the method comprising:
transmitting first information for configuring a resource block (RB) for a first type terminal through a higher layer signaling;
identifying whether a terminal is the first type terminal;
transmitting second information for allocating at least one subcarrier of the RB for the first type terminal in case that the terminal is the first type terminal, the RB being identified based on the first information; and
communicating a signal with the terminal on a symbol of the allocated at least one subcarrier,
wherein the second information is transmitted through the higher layer signaling or physical layer control signaling.
2. The method of claim 1 , further comprising:
transmitting third information for allocating an RB for a second type terminal through higher layer signaling in case that the terminal is not the first type terminal; and
communicating a signal with the second type terminal on the allocated RB based on the third information.
3. The method of claim 1 , wherein an index of the at least one subcarrier allocated to the first type terminal is determined according to an identifier of the first type terminal.
4. The method of claim 1 , wherein the signal comprises at least one of data, a pilot signal, or control information, and
wherein the signal is mapped to the symbol of the at least one subcarrier allocated to the first type terminal to which a signal for a second type terminal is not mapped.
5. A method for a terminal to transmit and receive signals, the method comprising:
receiving first information for configuring a resource block (RB) for a first type terminal from a base station through a higher layer signaling;
receiving second information for allocating at least one subcarrier of the RB for the first type terminal in case that the terminal is identified as the first type terminal by the base station, the RB being identified based on the first information; and
communicating a signal with the base station on a symbol of the allocated at least one subcarrier,
wherein the second information is received through the higher layer signaling or physical layer control signaling.
6. The method of claim 5 , further comprising:
receiving third information for allocating an RB for a second type terminal from the base station through the higher layer signaling in case that the terminal is not the first type terminal; and
communicating a signal with the base station on the allocated RB based on the third information.
7. The method of claim 5 , wherein an index of the at least one subcarrier is determined according to an identifier of the first type terminal.
8. The method of claim 5 , wherein the signal comprises at least one of data, a pilot signal, or control information,
wherein the signal is mapped to the symbol of the at least one subcarrier allocated to the first type terminal to which a signal for a second type terminal is not mapped.
9. The method of claim 1 , wherein the symbol of the allocated at least one subcarrier for communicating with the first type terminal is different from a symbol for communicating at least one of control information or a reference signal for a second type terminal.
10. The method of claim 5 , wherein the symbol of the allocated at least one subcarrier for communicating with the base station is different from a symbol for communicating by the base station at least one of control information or a reference signal for a second type terminal.
11. A base station to transmit and receive signals, the base station comprising:
a transceiver; and
a processor configured to:
control the transceiver to transmit first information for configuring a resource block (RB) for a first type terminal through a higher layer signaling,
identify whether a terminal is the first type terminal,
control the transceiver to transmit second information for allocating at least one subcarrier of the RB for the first type terminal in case that the terminal is the first type terminal, the RB being identified based on the first information, and
control the transceiver to communicate a signal with the terminal on a symbol of the allocated at least one subcarrier,
wherein the second information is transmitted through the higher layer signaling or physical layer control signaling.
12. The base station of claim 11 , wherein the processor is further configured to control the transceiver to:
transmit third information for allocating an RB for a second type terminal through the higher layer signaling in case that the terminal is not the first type terminal, and
communicate a signal with the second type terminal on the allocated RB based on the third information.
13. The base station of claim 11 , wherein an index of the at least one subcarrier allocated to the first type terminal is determined according to an identifier of the first type terminal.
14. The base station of claim 11 , wherein the signal comprises at least one of data, a pilot signal, or control information, and
wherein the signal is mapped to the symbol of the at least one subcarrier allocated to the first type terminal to which a signal for a second type terminal is not mapped.
15. The base station of claim 11 , wherein the symbol of the allocated at least one subcarrier for communicating with the first type terminal is different from a symbol for communicating at least one of control information or a reference signal for a second type terminal.
16. A terminal to transmit and receive signals, the terminal comprising:
a transceiver; and
a processor configured to:
control the transceiver to receive first information for configuring a resource block (RB) for a first type terminal from a base station through a higher layer signaling;
control the transceiver to receive second information for allocating at least one subcarrier of the RB for the first type terminal in case that the terminal is identified as the first type terminal by the base station, the RB being identified based on the first information; and
control the transceiver to communicate a signal with the base station on a symbol of the allocated at least one subcarrier,
wherein the second information is received through the higher layer signaling or physical layer control signaling.
17. The terminal of claim 16 , wherein the processor is further configured to control the transceiver to receive third information for allocating an RB for a second type terminal from the base station through the higher layer signaling in case that the terminal is not the first type terminal and communicate a signal with the base station on the allocated RB based on the third information.
18. The terminal of claim 16 , wherein an index of the at least one subcarrier is determined according to an identifier of the first type terminal.
19. The terminal of claim 16 , wherein the signal comprises at least one of data, a pilot signal, or control information, and
wherein the signal is mapped to the symbol of the at least one subcarrier allocated to the first type terminal to which a signal for a second type terminal is not mapped.
20. The terminal of claim 16 , wherein the symbol of the allocated at least one subcarrier for communicating with the base station is different from a symbol for communicating by the base station at least one of control information or a reference signal for a second type terminal.
21. The method of claim 1 , wherein the first type terminal communicates with the base station using a narrow band in a wireless communication system comparing to a band for a second type terminal.
22. The method of claim 5 , wherein the first type terminal communicates with the base station using a narrow band in a wireless communication system comparing to a band for a second type terminal.
23. The base station of claim 11 , wherein the first type terminal communicates with the base station using a narrow band in a wireless communication system comparing to a band for a second type terminal.
24. The terminal of claim 16 , wherein the first type terminal communicates with the base station using a narrow band in a wireless communication system comparing to a band for a second type terminal.