Method of handling communication operation in TDD system and related apparatus

1. A network for handling a communication operation in a wireless communication system, comprising:

a storage device; and

a processing circuit, coupled to the storage device, wherein the storage device stores, and the processing circuit is configures to execute instruction of:

determining a reconfiguration set comprising a first plurality of uplink (UL)/downlink (DL) configurations;

scheduling a second plurality of UL/DL configurations in the reconfiguration set for a plurality of frames;

selecting a UL/DL configuration from the first plurality of UL/DL configurations as a reference UL/DL configuration;

transmitting information related to the reconfiguration set to a communication device of the wireless communication system; and

performing a plurality of communication operations in the plurality of frames with the communication device according to the reference UL/DL configuration but not according to the second plurality of UL/DL configurations scheduled for the plurality of frames, wherein the plurality of communication operations comprise a set of a plurality of transmissions and a plurality of receptions;

wherein each DL subframe of each of the first plurality of UL/DL configurations in the reconfiguration set with a same subframe index corresponds to a DL subframe of the reference UL/DL configuration.

2. The network of claim 1 , wherein the information comprises the reference UL/DL configuration and/or the reconfiguration set.

3. The network of claim 1 , wherein the network performs the plurality of communication operations with the communication device according to the reference UL/DL configuration but not according to the second plurality of UL/DL configurations of the plurality of frames, within at least one frame after the plurality of frames.

4. The network of claim 1 , wherein the network performs the plurality of communication operations with the communication device according to the reference UL/DL configuration but not according to the second plurality of UL/DL configurations of the plurality of frames, after the reconfiguration set is determined.

5. The network of claim 1 , wherein the step of performing the plurality of communication operations in the plurality of frames with the communication device according to the reference UL/DL configuration but not according to the second plurality of UL/DL configurations scheduled for the plurality of frames comprises:

receiving a DL hybrid automatic repeat request (HARQ) feedback corresponding to at least one physical DL shared channel (PDSCH) transmission, in a UL subframe of one of the plurality of frames, according to the reference UL/DL configuration, wherein the DL HARQ feedback is transmitted by the communication device.

6. The network of claim 1 , wherein the step of performing the plurality of communication operations in the plurality of frames with the communication device according to the reference UL/DL configuration but not according to the second plurality of UL/DL configurations scheduled for the plurality of frames comprises:

transmitting control information in a DL subframe of one of the plurality of frames, to the communication device according to the reference UL/DL configuration.

7. The network of claim 6 , wherein each DL subframe of the reference UL/DL configuration corresponds to a DL subframe of each of the first plurality of UL/DL configurations in the reconfiguration set with a same subframe index.

8. The network of claim 6 , wherein each DL subframe of each of the first plurality of UL/DL configurations in the reconfiguration set with a same subframe index corresponds to a DL subframe of the reference UL/DL configuration.

9. A communication device for handling a communication operation in a wireless communication system, comprising:

a storage device; and

a processing circuit, coupled to the storage device, wherein the storage device stores, and the processing circuit is configures to execute instruction of:

receiving first information transmitted by a network of the wireless communication system, for scheduling a second plurality of uplink (UL)/downlink (DL) configurations in a reconfiguration set for a plurality of frames, wherein the reconfiguration set comprises a first plurality of UL/DL configurations;

obtaining second information related to the reconfiguration set;

selecting a UL/DL configuration from the second information as a reference UL/DL configuration; and

performing a plurality of communication operations in the plurality of frames with the network according to the reference UL/DL configuration but not according to the second plurality of UL/DL configurations scheduled for the plurality of frames in the reconfiguration set, wherein the plurality of communication operations comprise a set of a plurality of transmissions and a plurality of receptions;

wherein each DL subframe of each of the first plurality of UL/DL configurations in the reconfiguration set with a same subframe index corresponds to a DL subframe of the reference UL/DL configuration.

10. The communication device of claim 9 , wherein the second information comprises the reference UL/DL configuration and/or the reconfiguration set.

11. The communication device of claim 9 , wherein the communication device obtains the second information by receiving the second information transmitted by the network, or according to a predetermined rule.

12. The communication device of claim 9 , wherein the communication device performs the plurality of communication operations with the network according to the reference UL/DL configuration but not according to the second plurality of UL/DL configurations of the plurality of frames, within at least one frame after the plurality of frames.

13. The communication device of claim 9 , wherein the communication device performs the plurality of communication operations with the communication device according to the reference UL/DL configuration but not according to the second plurality of UL/DL configurations of the plurality of frames, after receiving the second information.

14. The communication device of claim 9 , wherein the communication device performs the plurality of communication operations in the plurality of frames with the network according to the reference UL/DL configuration but not according to the second plurality of UL/DL configurations of the plurality of frames, when the communication device experiences a change of the second plurality of UL/DL configurations due to that the communication device moves across at least one cell of the network.

15. The communication device of claim 9 , wherein the step of performing the plurality of communication operations in the plurality of frames with the network according to the reference UL/DL configuration but not according to the second plurality of UL/DL configurations scheduled for the plurality of frames comprises:

transmitting a DL hybrid automatic repeat request (HARD) feedback corresponding to at least one physical DL shared channel (PDSCH) reception, in a UL subframe of one of the plurality of frames, to the network according to the reference UL/DL configuration.

16. The communication device of claim 9 , wherein the step of performing the plurality of communication operations in the plurality of frames with the network according to the reference UL/DL configuration but not according to the second plurality of UL/DL configurations scheduled for the plurality of frames comprises:

receiving control information transmitted by the network, in a DL subframe of one of the plurality of frames, according to the reference UL/DL configuration.

17. The communication device of claim 16 , wherein each DL subframe of the reference UL/DL configuration corresponds to a DL subframe of each of the first plurality of UL/DL configurations in the reconfiguration set with a same subframe index.

18. The communication device of claim 16 , wherein each DL subframe of each of the first plurality of UL/DL configurations in the reconfiguration set with a same subframe index corresponds to a DL subframe of the reference UL/DL configuration.

19. The network of claim 5 , wherein the UL subframe is a non-conflicting UL subframe for all the first plurality of UL/DL configurations in the reconfiguration set.

20. The communication device of claim 15 , wherein the UL subframe is a non-conflicting UL subframe for all the first plurality of UL/DL configurations in the reconfiguration set.

21. A network for handling a communication operation in a wireless communication system, comprising:

a storage device; and

a processing circuit, coupled to the storage device, wherein the storage device stores, and the processing circuit is configures to execute instruction of:

determining a reconfiguration set comprising a first plurality of uplink (UL)/downlink (DL) configurations;

scheduling a second plurality of UL/DL configurations in the reconfiguration set for a plurality of frames;

selecting a UL/DL configuration from the first plurality of UL/DL configurations as a reference UL/DL configuration;

transmitting information related to the reconfiguration set to a communication device of the wireless communication system; and

performing a plurality of communication operations in the plurality of frames with the communication device according to the reference UL/DL configuration but not according to the second plurality of UL/DL configurations scheduled for the plurality of frames, wherein the plurality of communication operations comprise a set of a plurality of transmissions and a plurality of receptions;

wherein each UL subframe of each of the first plurality of UL/DL configurations in the reconfiguration set with a same subframe index corresponds to a UL subframe of the reference UL/DL configuration.

22. The network of claim 21 , wherein the information comprises the reference UL/DL configuration and/or the reconfiguration set.

23. The network of claim 21 , wherein the network performs the plurality of communication operations with the communication device according to the reference UL/DL configuration but not according to the second plurality of UL/DL configurations of the plurality of frames, within at least one frame after the plurality of frames.

24. The network of claim 21 , wherein the network performs the plurality of communication operations with the communication device according to the reference UL/DL configuration but not according to the second plurality of UL/DL configurations of the plurality of frames, after the reconfiguration set is determined.

25. The network of claim 21 , wherein the step of performing the plurality of communication operations in the plurality of frames with the communication device according to the reference UL/DL configuration but not according to the second plurality of UL/DL configurations scheduled for the plurality of frames comprises:

transmitting a UL grant in a first DL subframe of one of the plurality of frames to the communication device according to the reference UL/DL configuration; or

transmitting a UL HARQ feedback corresponding to at least one physical UL shared channel (PUSCH) reception, in a second DL subframe of one of the plurality of frames, to the communication device according to the reference UL/DL configuration.

26. The network of claim 25 , wherein the first DL subframe and the second DL subframe are non-conflicting DL subframes for all the first plurality of UL/DL configurations in the reconfiguration set.

27. The network of claim 21 , wherein the step of performing the plurality of communication operations in the plurality of frames with the communication device according to the reference UL/DL configuration but not according to the second plurality of UL/DL configurations scheduled for the plurality of frames comprises:

transmitting control information in a DL subframe of one of the plurality of frames, to the communication device according to the reference UL/DL configuration.

28. The network of claim 27 , wherein each DL subframe of the reference UL/DL configuration corresponds to a DL subframe of each of the first plurality of UL/DL configurations in the reconfiguration set with a same subframe index.

29. The network of claim 27 , wherein each DL subframe of each of the first plurality of UL/DL configurations in the reconfiguration set with a same subframe index corresponds to a DL subframe of the reference UL/DL configuration.

30. A communication device for handling a communication operation in a wireless communication system, comprising:

a storage device; and

a processing circuit, coupled to the storage device, wherein the storage device stores, and the processing circuit is configures to execute instruction of:

receiving first information transmitted by a network of the wireless communication system, for scheduling a second plurality of uplink (UL)/downlink (DL) configurations in a reconfiguration set for a plurality of frames, wherein the reconfiguration set comprises a first plurality of UL/DL configurations;

obtaining second information related to the reconfiguration set;

selecting a UL/DL configuration from the second information as a reference UL/DL configuration; and

performing a plurality of communication operations in the plurality of frames with the network according to the reference UL/DL configuration but not according to the second plurality of UL/DL configurations scheduled for the plurality of frames in the reconfiguration set, wherein the plurality of communication operations comprise a set of a plurality of transmissions and a plurality of receptions;

wherein each UL subframe of each of the first plurality of UL/DL configurations in the reconfiguration set with a same subframe index corresponds to a UL subframe of the reference UL/DL configuration.

31. The communication device of claim 30 , wherein the second information comprises the reference UL/DL configuration and/or the reconfiguration set.

32. The communication device of claim 30 , wherein the communication device obtains the second information by receiving the second information transmitted by the network, or according to a predetermined rule.

33. The communication device of claim 30 , wherein the communication device performs the plurality of communication operations with the network according to the reference UL/DL configuration but not according to the second plurality of UL/DL configurations of the plurality of frames, within at least one frame after the plurality of frames.

34. The communication device of claim 30 , wherein the communication device performs the plurality of communication operations with the communication device according to the reference UL/DL configuration but not according to the second plurality of UL/DL configurations of the plurality of frames, after receiving the second information.

35. The communication device of claim 30 , wherein the communication device performs the plurality of communication operations in the plurality of frames with the network according to the reference UL/DL configuration but not according to the second plurality of UL/DL configurations of the plurality of frames, when the communication device experiences a change of the second plurality of UL/DL configurations due to that the communication device moves across at least one cell of the network.

36. The communication device of claim 30 , wherein the step of performing the plurality of communication operations in the plurality of frames with the network according to the reference UL/DL configuration but not according to the second plurality of UL/DL configurations scheduled for the plurality of frames comprises:

receiving a UL grant in a first DL subframe of one of the plurality of frames according to the reference UL/DL configuration, wherein the UL grant is transmitted by the network; or

receiving a UL HARQ feedback corresponding to at least one physical UL shared channel (PUSCH) transmission, in a second DL subframe of one of the plurality of frames, according to the reference UL/DL configuration, wherein the UL HARQ feedback is transmitted by the network.

37. The communication device of claim 36 , wherein the first DL subframe and the second DL subframe are non-conflicting DL subframes for all the first plurality of UL/DL configurations in the reconfiguration set.

38. The communication device of claim 30 , wherein the step of performing the plurality of communication operations in the plurality of frames with the network according to the reference UL/DL configuration but not according to the second plurality of UL/DL configurations scheduled for the plurality of frames comprises:

receiving control information transmitted by the network, in a DL subframe of one of the plurality of frames, according to the reference UL/DL configuration.

39. The communication device of claim 38 , wherein each DL subframe of the reference UL/DL configuration corresponds to a DL subframe of each of the first plurality of UL/DL configurations in the reconfiguration set with a same subframe index.

40. The communication device of claim 38 , wherein each DL subframe of each of the first plurality of UL/DL configurations in the reconfiguration set with a same subframe index corresponds to a DL subframe of the reference UL/DL configuration.