Communication device, communication method, and program

1. A communication device comprising:

circuitry configured to set a predetermined resource pool to be used for grant-free transmission and information regarding non-orthogonal multiplexing in a first device, wherein the information regarding non-orthogonal multiplexing comprises a notification of pattern vectors;

periodically broadcast the information regarding the non-orthogonal multiplexing: and

receive a transmission from the first device comprising a second notification of a set of the pattern vectors to be used.

2. The communication device according to claim 1 , wherein the circuitry is further configured to store the information regarding the non-orthogonal multiplexing in a predetermined resource for storing the information regarding the non-orthogonal multiplexing to broadcast the information regarding the non-orthogonal multiplexing.

3. The communication device according to claim 1 , wherein the circuitry is further configured to decode a signal subjected to the non-orthogonal multiplexing on same frequency and time resources using the information regarding the non-orthogonal multiplexing.

4. The communication device according to claim 3 , wherein the circuitry is further configured to receive a signal transmitted by the first device by selecting an appropriate resource from the resource pool.

5. The communication device according to claim 3 , wherein the circuitry is further configured to receive a signal with regard to a signal transmitted from the first device without resource allocation.

6. The communication device according to claim 1 , wherein the circuitry is further configured to broadcast use or nonuse of the information regarding the non-orthogonal multiplexing.

7. The communication device according to claim 1 , wherein the circuitry is further configured to transmit an indication that the same information regarding the non-orthogonal multiplexing is used to a device using the same information regarding the non-orthogonal multiplexing.

8. The communication device according to claim 1 , wherein the information regarding the non-orthogonal multiplexing includes information regarding an interleave pattern.

9. The communication device according to claim 1 , wherein the information regarding the non-orthogonal multiplexing includes information regarding a scrambling pattern.

10. The communication device according to claim 1 , wherein the information regarding the non-orthogonal multiplexing includes information regarding a spreading signal pattern.

11. The communication device according to claim 1 , wherein the information regarding the non-orthogonal multiplexing includes information regarding a codebook.

12. The communication device according to claim 1 , wherein the information regarding the non-orthogonal multiplexing includes information regarding a power level.

13. The communication device according to claim 1 , wherein the predetermined resource pool is designated by the communication device, the first device, or a second device different from the communication device and the first device.

14. A communication device comprising:

circuitry configured to

receive from a first device broadcasted information regarding non-orthogonal multiplexing for grant-free transmission, wherein the information regarding non-orthogonal multiplexing comprises a notification of pattern vectors;

determine a set of the pattern vectors to be used for communications;

transmit a signal generated using the determined set of pattern vectors to the first device.

15. The communication device according to claim 14 , wherein the circuitry is further configured to notify the first device of the information regarding the non-orthogonal multiplexing within a same unit frame time.

16. The communication device according to claim 14 , wherein the circuitry is further configured to use other information regarding the non-orthogonal multiplexing when the used information regarding the non-orthogonal multiplexing is not usable.

17. The communication device according to claim 16 , wherein the circuitry is further configured to notify the first device of the newly used information regarding the non-orthogonal multiplexing.

18. The communication device according to claim 14 , wherein the information regarding the non-orthogonal multiplexing includes information regarding an interleave pattern.

19. The communication device according to claim 14 , wherein the information regarding the non-orthogonal multiplexing includes information regarding a scrambling pattern.

20. The communication device according to claim 14 , wherein the information regarding the non-orthogonal multiplexing includes information regarding a spreading signal pattern.

21. The communication device according to claim 14 , wherein the information regarding the non-orthogonal multiplexing includes information regarding a codebook.

22. The communication device according to claim 14 , wherein the information regarding the non-orthogonal multiplexing includes information regarding a power level.

23. A communication method comprising:

setting a predetermined resource pool to be used for grant-free transmission and information regarding non-orthogonal multiplexing in a first device, wherein the information regarding non-orthogonal multiplexing comprises a notification of pattern vectors;

periodically broadcasting the information regarding the non-orthogonal multiplexing; and

receiving a transmission from the first device comprising a second notification of a set of the pattern vectors to be used.

24. A communication method comprising:

receiving from a first device broadcasted information regarding non-orthogonal multiplexing for grant-free transmission, wherein the information regarding non-orthogonal multiplexing comprises a notification of pattern vectors;

determining a set of the pattern vectors to be used for communications;

transmitting a second notification of the determined set of the pattern vectors to be used; and

transmitting a signal generated using the determined set of pattern vectors to the first device.

25. A non-transitory computer readable medium storing a computer program for causing a computer to:

set a predetermined resource pool to be used for grant-free transmission and information regarding non-orthogonal multiplexing in a first device, wherein the information regarding non-orthogonal multiplexing comprises a notification of pattern vectors;

periodically broadcast the information regarding the non-orthogonal multiplexing; and

receive a transmission from the first device comprising a second notification of a set of the pattern vectors to be used.

26. A non-transitory computer readable medium storing a computer program for causing a computer to:

receive from a first device broadcasted information regarding non-orthogonal multiplexing for grant-free transmission, wherein the information regarding non-orthogonal multiplexing comprises a notification of pattern vectors;

determine a set of the pattern vectors to be used for communications;

transmit a second notification of the determined set of the pattern vectors to be used; and

transmit a signal generated using the determined set of pattern vectors to the first device.