Method and device for allocating transmission power in wireless communication system
The present disclosure relates to a communication method and system for converging a 5 th -Generation (5G) communication system for supporting higher data rates beyond a 4 th -Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The present disclosure provides a method and a device for allocating transmission power in a wireless communication system.
1. A method performed by a user equipment (UE) in a wireless communication system, the method comprising:
transmitting a first sidelink control information (SCI) scheduling a first sidelink signal using a long-term evolution (LTE) radio access and a second SCI scheduling a second sidelink signal using a new radio (NR) radio access, wherein the first SCI includes a first priority field for the first sidelink signal and the second SCI includes a second priority field for the second sidelink signal;
identifying whether a transmission of the first sidelink signal and a transmission of the second sidelink signal overlap in time;
determining, from among the first sidelink signal and the second sidelink signal, a sidelink signal with a highest priority based on the first priority field in the first SCI and the second priority field in the second SCI, in case that the transmission of the first sidelink signal and the transmission of the second sidelink signal overlap in time; and
transmitting the determined sidelink signal with the highest priority.
2. The method of claim 1 , wherein the first priority field and the second priority field are composed of 3 bits, respectively.
3. The method of claim 1 , wherein the determining of the sidelink signal with the highest priority comprises:
comparing a value of the first priority field of the sidelink SSB with and a value of the second priority field; and
determining a sidelink signal having a lower value, among the value of the first priority field and the value of the second priority field, as the sidelink signal with the highest priority.
4. The method of claim 3 , wherein another sidelink signal having a higher value, among the value of the first priority field and the value of the second priority field, is not transmitted.
5. The method of claim 1 , wherein the determined sidelink signal with the highest priority is transmitted on a physical sidelink shared channel (PSSCH).
6. A user equipment (UE) in a wireless communication system, the UE comprising:
a transceiver; and
a controller,
configured to:
transmit, via the transceiver, a first sidelink control information (SCI) scheduling a first sidelink signal using a long-term evolution (LTE) radio access and a second SCI scheduling a second sidelink signal using a new radio (NR) radio access, wherein the first SCI includes a first priority field for the first sidelink signal and the second SCI includes a second priority field for the second sidelink signal,
identify whether a transmission of the first sidelink signal and a transmission of the second sidelink signal overlap in time,
determine, from among the first sidelink signal and the second sidelink signal, a sidelink signal with a highest priority based on the first priority field in the first SCI and the second priority field in the second SCI, in case that the transmission of the first sidelink signal transmission and the transmission of the second sidelink signal overlap in time, and
transmit, via the transceiver, the determined sidelink signal with the highest priority.
7. The UE of claim 6 , wherein the first priority field and the second priority field are composed of 3 bits, respectively.
8. The UE of claim 6 , wherein the controller is configured to:
compare a value of the first priority field and a value of the second priority field, and
determine a sidelink signal having a lower value, among the value of first priority field and the value of the second priority field, as the sidelink signal with the highest priority.
9. The UE of claim 8 , wherein another sidelink signal having a higher value, among the value of the first priority field and the value of the second priority field, is not transmitted.
10. The UE of claim 6 , wherein the determined sidelink signal with the highest priority is transmitted on a physical sidelink shared channel (PSSCH).