Method for terminal receiving sidelink signal in wireless communication system supporting sidelink, and device therefor
Disclosed are a method for a terminal receiving a sidelink signal for each geographical area in a wireless communication system supporting a sidelink, and a device therefor according to various embodiments. Disclosed are a method for a terminal receiving a sidelink signal for each geographical area and a device therefor, the method comprising the steps of: receiving at least one synchronization signal transmitted for each geographical area; and configuring reception timing for each geographical area on the basis of the at least one synchronization signal and receiving a sidelink signal.
1. A method of receiving a sidelink signal for each geographic region by a user equipment (UE) in a wireless communication system supporting sidelink, the method comprising:
receiving at least one synchronization signal transmitted in each geographic region; and
receiving the sidelink signal by configuring a reception timing for the sidelink signal for each geographic region based on the at least one synchronization signal,
wherein the sidelink signal is received in a time division multiplexed resource region for the each geographic region, and
wherein, based on overlap of a partial region between time division multiplexed resource regions, the UE demodulates the received sidelink signal by puncturing a resource element or a symbol mapped to the overlapping partial region from the received sidelink signal.
2. The method of claim 1 ,
wherein the reception timing is determined based on a reception timing of a synchronization signal for the each geographic region in which the sidelink signal is transmitted.
3. The method of claim 1 ,
wherein the reception timing is changed according to the each geographic region in which the sidelink signal is transmitted.
4. The method of claim 1 ,
wherein the reception timing is differently configured according to the each geographic region.
5. The method of claim 1 ,
wherein the synchronization signal is received a time division multiplexed synchronization resource region for the each geographic region.
6. The method of claim 1 ,
wherein, based on overlap of a partial region between the time division multiplexed resource regions according to the geographic region, the sidelink signal is transmitted by puncturing or rate-matching a resource element or a symbol mapped to the partial region.
7. The method of claim 1 ,
wherein a size of the geographic region is determined based on at least one of a subcarrier spacing, a carrier frequency, or coverage of the UE.
8. The method of claim 1 ,
wherein the number of geographic regions is determined based on at least one of a cyclic prefix (CP) length, a subcarrier spacing, a carrier frequency, or coverage of the UE.
9. The method of claim 1 ,
wherein information for the time division multiplexed resource regions is signaled by a network to the UE through a physical layer or higher layer signal.
10. The method of claim 1 , further comprising:
determining a first synchronization resource region related to geographic information of the UE among time division multiplexed synchronization resource regions for the each geographic region; and
transmitting the synchronization signal in the determined first synchronization resource region.
11. The method of claim 10 ,
wherein, based on a change of the synchronization resource region related to the geographic information for the UE to a second synchronization resource region, the UE transmits a new synchronization signal in the changed the second synchronization resource region.
12. The method of claim 10 ,
wherein the time division multiplexed synchronization resource regions include a preconfigured time gap.
13. An apparatus for configuring a reception timing of a sidelink signal for each geographic region in a wireless communication system supporting sidelink, the apparatus comprising:
a processor; and
a memory connected to the processor,
wherein the processor receives information on at least one synchronization signal transmitted in each geographic region from the memory, and configures a timing at which the sidelink signal is to be received in the geographic region based on the received at least one synchronization signal,
wherein the sidelink signal is received in a time division multiplexed resource region for the each geographic region, and
wherein, based on overlap of a partial region between time division multiplexed resource regions, the UE demodulates the received sidelink signal by puncturing a resource element or a symbol mapped to the overlapping partial region from the received sidelink signal.