Method and apparatus for adjusting timing in wireless communication system
The present disclosure relates to a pre-5 th -Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4 th -Generation (4G) communication system such as Long Term Evolution (LTE). An embodiment of the present disclosure relates to a method for operating a terminal, which includes receiving timing advance (TA) information related to an interference, determining whether to apply the TA information related to the interference, and transmitting uplink data based on the TA information related to the interference, and the terminal performing the same. Further, the present disclosure relates to a method and an apparatus for operating a base station operating with the terminal.
1. A method performed by a terminal, the method comprising:
receiving, from a base station, timing advance (TA) information related to an interference;
identifying whether a slot is switched from a downlink slot to an uplink slot based on a dynamic TDD configuration;
applying the TA information related to the interference to the slot in case that the slot is switched from the downlink slot to the uplink slot so that a cyclic prefix (CP) associated with an uplink symbol of the slot for the terminal overlaps with a CP associated with a downlink symbol of another terminal based on a timing adjustment according to the TA information related to the interference; and
transmitting, to the base station, uplink data based on the timing adjustment according to the TA information related to the interference,
wherein the uplink data is an interference signal to the another terminal.
2. The method of claim 1 , wherein the TA information related to the interference is received through downlink control information (DCI).
3. The method of claim 1 , further comprising:
determining whether to apply the TA information related to the interference to the slot based on indication information indicating whether to apply the TA information related to the interference.
4. The method of claim 1 , wherein:
the TA information related to the interference comprises static TA information received through a radio resource control (RRC) message and dynamic TA information received through DCI, and
the TA information related to the interference is determined based on a switching time and a propagation delay.
5. The method of claim 1 , further comprising receiving downlink control information (DCI) including an additional guard period (GP) related to the interference,
wherein the additional GP is different from a default GP.
6. A terminal comprising:
a transceiver; and
a processor configured to:
receive, from a base station via the transceiver, timing advance (TA) information related to an interference,
identify whether a slot is switched from a downlink slot to an uplink slot based on a dynamic TDD configuration,
apply the TA information related to the interference to the slot in case that the slot is switched from the downlink slot to the uplink slot so that a cyclic prefix (CP) associated with an uplink symbol of the slot for the terminal overlaps with a CP associated with a downlink symbol of another terminal based on a timing adjustment according to the TA information related to the interference, and
transmit, to the base station via the transceiver, uplink data based on the timing adjustment according to the TA information related to the interference,
wherein the uplink data is an interference signal to the another terminal.
7. The terminal of claim 6 , wherein the TA information related to the interference is received through downlink control information (DCI).
8. The terminal of claim 6 , wherein the processor is further configured to determine whether to apply the TA information related to the interference to the slot based on indication information indicating whether to apply the TA information related to the interference.
9. The terminal of claim 6 , wherein:
the TA information related to the interference comprises static TA information received through a radio resource control (RRC) message and dynamic TA information received through DCI, and
the TA information related to the interference is determined based on a switching time and a propagation delay.
10. The terminal of claim 6 , wherein the processor is configured to receive downlink control information (DCI) including an additional guard period (GP) related to the interference, and
wherein the additional GP is different from a default GP.
11. A method performed by a base station, the method comprising:
determining timing advance (TA) information related to an interference;
transmitting the TA information related to the interference to a terminal; and
receiving, from the terminal, uplink data on a slot based on a timing adjustment according to the TA information related to the interference,
wherein the TA information related to the interference is applied to the slot in case that the slot is switched from a downlink slot to an uplink slot so that a cyclic prefix (CP) associated with an uplink symbol of the terminal overlaps with a CP associated with a downlink symbol of another terminal based on the timing adjustment according to the TA information related to the interference, and
wherein the uplink data is an interference signal to the another terminal.
12. The method of claim 11 , wherein downlink control information (DCI) including the TA information related to the interference is transmitted.
13. The method of claim 11 , further comprising transmitting indication information indicating whether to apply the TA information related to the interference.
14. The method of claim 11 , wherein:
the TA information related to the interference comprises static TA information transmitted through a radio resource control (RRC) message and dynamic TA information transmitted through DCI, and
the TA information related to the interference is determined based on a switching time and a propagation delay.
15. The method of claim 11 , further comprising transmitting downlink control information (DCI) including an additional guard period (GP) related to the interference or special subframe configuration information including the additional GP,
wherein the additional GP is different from a default GP.
16. A base station comprising:
a transceiver; and
a processor configured to:
determine timing advance (TA) information related to an interference, transmit, to a terminal via the transceiver, the TA information related to the interference, and
receive, from the terminal via the transceiver, uplink data on a slot based on a timing adjustment according to the TA information related to the interference,
wherein the TA information related to the interference is applied to the slot in case that the slot is switched from a downlink slot to an uplink slot so that a cyclic prefix (CP) associated with an uplink symbol of the terminal overlaps with a CP associated with a downlink symbol of another terminal based on a timing adjustment according to the TA information related to the interference, and
wherein the uplink data is an interference signal to the another terminal.
17. The base station of claim 16 , wherein downlink control information (DCI) including the TA information related to the interference is transmitted.
18. The base station of claim 16 , wherein the processor is configured to transmit indication information indicating whether to apply the TA information related to the interference.
19. The base station of claim 16 , wherein:
the TA information related to the interference comprises static TA information transmitted through a radio resource control (RRC) message and dynamic TA information transmitted through DCI, and
the TA information related to the interference is determined based on a switching time and a propagation delay.
20. The base station of claim 19 , wherein the processor is configured to transmit downlink control information (DCI) including an additional guard period (GP) related to the interference, and
wherein the additional GP is different from a default GP.