I/WE CLAIM:
1. A user equipment (UE) comprising: device to device (D2D) circuitry to:
identify that a first sidelink transmission by the UE is to be transmitted in a same subframe as a second sidelink transmission by the UE; and
identify, based on a type of the first sidelink transmission and a type of the second sidelink transmission, that the UE is to continue to transmit the first sidelink transmission and that the UE is to drop the second sidelink transmission; and
interface control circuitry coupled with the D2D circuitry, the interface control circuitry to transmit, based on the identification that the UE is to drop the second sidelink transmission, the first sidelink transmission on the resource.
2. The UE of claim 1, wherein the D2D circuitry is to identify that the first sidelink transmission by the UE is to be transmitted in the same subframe as the second sidelink transmission based on an identification that the first sidelink transmission is to collide in the time domain as the second sidelink transmission.
3. The UE of claim 1, wherein the first sidelink transmission is a Type 2B D2D discovery transmission, and the second sidelink transmission is a Type 1 D2D discovery transmission.
4. The UE of claim 3, wherein the D2D circuitry is further to identify, in a message received from an evolved NodeB (eNB), an allocation of resources for the Type 2B D2D discovery transmission.
5. The UE of claim 3, wherein the D2D circuitry is further to identify that a priority of the Type 2B D2D discovery transmission is higher than a priority of the Type 1 D2D discovery transmission.

6. The UE of claim 3, wherein the D2D circuitry is further to select one or more physical resources for transmission of the Type 1 D2D discovery transmission.
7. The UE of claim 3, wherein the first sidelink transmission and the second sidelink transmission are D2D transmissions.
8. The UE of claim 1, further comprising a non-volatile memory (NVM) coupled with the interface control circuitry.
9. A processor comprising:
device-to-device (D2D) circuitry to:
identify that a first sidelink transmission by the UE on a resource of a discovery resource period is to collide in a time domain with a second sidelink transmission by the UE;
identify, based on a type of the first sidelink transmission and a type of the second sidelink transmission, that the UE is to continue to transmit the first sidelink transmission and that the UE is to drop the second sidelink transmission; and
transmit, based on the identification that the UE is to drop the second sidelink transmission, the first sidelink transmission on the resource; and
a baseband processor coupled with the D2D circuitry, the baseband processor to perform signal modulation and encoding.
10. The processor of claim 9, wherein the discovery resource period is a subframe.
11. The processor of claim 9, wherein the first sidelink transmission is a Type 2B device-to-device (D2D) discovery transmission, and the second sidelink

transmission is a Type 1 D2D discovery transmission.
12. The processor of claim 11, wherein the D2D circuitry is further to identify, in a message received from an evolved NodeB (eNB), an allocation of resources for the Type 2B D2D discovery transmission.
13. The processor of claim 11, wherein the processor is further to identify that a priority of the Type 2B D2D discovery transmission is higher than a priority of the Type 1 D2D discovery transmission.
14. The processor of claim 11, wherein the processor is further to select one or more physical resources for transmission of the Type 1 D2D discovery transmission.
15. The processor of claim 11, wherein the first sidelink transmission and the second sidelink transmission are D2D transmissions.
16. One or more non-transitory computer-readable media comprising
instructions to cause a user equipment (UE), upon execution of the instructions by
one or more processors of the UE, to:
identify that a first sidelink transmission by the UE on a resource of a discovery resource period is to collide in a time domain with a second sidelink transmission by the UE;
identify, based on a type of the first sidelink transmission and a type of the second sidelink transmission, that the UE is to continue to transmit the first sidelink transmission and that the UE is to drop the second sidelink transmission; and
transmit, based on the identification that the UE is to drop the second sidelink transmission, the first sidelink transmission on the resource.
17. The one or more non-transitory computer-readable media of claim 16,

wherein the discovery resource period is a subframe.
18. The one or more non-transitory computer-readable media of claim 16, wherein the first sidelink transmission is a Type 2B device-to-device (D2D) discovery transmission, and the second sidelink transmission is a Type 1 D2D discovery transmission.
19. The one or more non-transitory computer-readable media of claim 18, wherein the instructions are further to identify, in a message received from an evolved NodeB (eNB), an allocation of resources for the Type 2B D2D discovery transmission.
20. The one or more non-transitory computer-readable media of claim 18, wherein the instructions are further to identify that a priority of the Type 2B D2D discovery transmission is higher than a priority of the Type 1 D2D discovery transmission.
21. The one or more non-transitory computer-readable media of claim 18, wherein the instructions are further to select one or more physical resources for transmission of the Type 1 D2D discovery transmission.
22. The one or more non-transitory computer-readable media of claim 18, wherein the first sidelink transmission and the second sidelink transmission are D2D transmissions.