Method of Handling Downlink Control Information and Related Communication Device

• US 20130336252A1
• Filed: 06/13/2013
• Published: 12/19/2013
• Est. Priority Date: 06/15/2012
• Status: Active Grant

• Current Assignee: Acer, Inc.
• Original Assignee: Industrial Technology Research Institute
• Inventors: Hsieh, Chia-Wen, Lee, Chien-Min
• Granted Patent: US 9,807,747 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

A method of arranging downlink (DL) control information (DCI) for a network of a wireless communication system comprises configuring first DCI for a communication device of the wireless communication system; and transmitting the first DCI in a control region of a first physical DL shared channel (PDSCH) of a first subframe of a first component carrier to the communication device.

Claims

1. A method of arranging downlink (DL) control information (DCI) for a network of a wireless communication system, the method comprising:

configuring first DCI for a communication device of the wireless communication system; and

transmitting the first DCI in a control region of a first physical DL shared channel (PDSCH) of a first subframe of a first component carrier to the communication device.

2. The method of claim 1, wherein the first DCI comprises an arrangement of a second PDSCH of a second subframe of a second component carrier to the communication device.

3. The method of claim 2, wherein hybrid automatic repeat request (HARQ) resource for transmitting a HARQ corresponding to the second PDSCH is determined according to at least one of a location of the first DCI and a location of the second PDSCH.

4. The method of claim 1, wherein the first DCI comprises an arrangement of a physical uplink (UL) shared channel (PUSCH) of a second subframe of a second component carrier to the communication device.

5. The method of claim 1, wherein the first DCI comprises an indication for power control of the communication device.

6. The method of claim 1, wherein the first DCI comprises a HARQ corresponding to a PUSCH transmitted in a previous frame.

7. The method of claim 1, further comprising:

transmitting a header in the first PDSCH of the first subframe of the first component carrier, for indicating the control region to the communication device.

8. The method of claim 7, wherein the header comprises information related to at least one of a size and a location of the control region.

9. The method of claim 7, wherein a modulation and coding scheme (MCS) of the header and the control region is different from a MCS of data transmitted in the first PDSCH.

10. The method of claim 1, further comprising:

transmitting second DCI in a physical DL control channel (PDCCH) of the first subframe of the first component carrier, for indicating the control region to the communication device.

11. The method of claim 10, wherein the second DCI comprises at least one legacy field and at least one field newly added, wherein the at least one field newly added comprises information related to at least one of a size and a location of the control region.

12. The method of claim 1, wherein a size of the control region for carrying the first DCI is determined according to at least one of a modulation order and a size of the first PDSCH.

13. A method of detecting downlink (DL) control information (DCI) for a communication device of a wireless communication system, the method comprising:

receiving a control region of a first physical DL shared channel (PDSCH) of a first subframe of a first component carrier; and

detecting first DCI in the control region.

14. The method of claim 13, wherein the first DCI comprises an arrangement of a second PDSCH of a second subframe of a second component carrier to the communication device.

15. The method of claim 14, wherein hybrid automatic repeat request (HARQ) resource for transmitting a HARQ corresponding to the second PDSCH is determined according to at least one of a location of the first DCI and a location of the second PDSCH.

16. The method of claim 13, wherein the first DCI comprises an arrangement of a physical uplink (UL) shared channel (PUSCH) of a second subframe of a second component carrier to the communication device.

17. The method of claim 13, wherein the first DCI comprises an indication for power control of the communication device.

18. The method of claim 13, wherein the first DCI comprises a HARQ corresponding to a PUSCH transmitted in a previous frame.

19. The method of claim 13, further comprising:

receiving a header transmitted by a network of the wireless communication system in the first PDSCH of the first subframe of the first component carrier, wherein the header indicates the control region.

20. The method of claim 19, wherein the header comprises information related to at least one of a size and a location of the control region.

21. The method of claim 19, wherein a modulation and coding scheme (MCS) of the header and the control region is different from a MCS of data transmitted in the first PDSCH.

22. The method of claim 13, further comprising:

receiving a second DCI in a physical DL control channel (PDCCH) of the first subframe of the first component carrier, wherein the second DCI indicates the control region.

23. The method of claim 22, wherein the second DCI comprises at least one legacy field and at least one field newly added, wherein the at least one field newly added comprises information related to at least one of a size and a location of the control region.

24. The method of claim 13, wherein a size of the control region for carrying the first DCI is determined according to at least one of a modulation order and a size of the first PDSCH.

25. A method of transmitting downlink (DL) control information (DCI) for a network of a wireless communication system, the method comprising:

combining a physical DL control channel (PDCCH) of a subframe and an enhanced PDCCH (ePDCCH) of the subframe as a combined PDCCH of the subframe; and

transmitting at least one DCI in the combined PDCCH to a communication device of the wireless communication system.

26. The method of claim 25, wherein the combined PDCCH comprises at least one control channel element (CCE) of the PDCCH and at least one enhanced CCE (eCCE) of the ePDCCH.

27. The method of claim 25, wherein the ePDCCH is in a physical DL shared channel (PDSCH) of the subframe.

28. The method of claim 25, wherein each of the at least one DCI comprises at least one of a DCI format, an aggregation level and a candidate of the aggregation level.

29. A method of receiving downlink (DL) control information (DCI) for a communication device of a wireless communication system, the method comprising:

detecting a combined physical DL control channel (PDCCH) of a subframe transmitted by a network of the wireless communication system, wherein the combined PDCCH comprises a PDCCH of the subframe and an enhanced PDCCH (ePDCCH) of the subframe; and

detecting at least one DCI in the combined PDCCH.

30. The method of claim 29, wherein the combined PDCCH comprises at least one control channel element (CCE) of the PDCCH and at least one enhanced CCE (eCCE) of the ePDCCH.

31. The method of claim 29, wherein the ePDCCH is in a physical DL shared channel (PDSCH) of the subframe.

32. The method of claim 29, wherein each of the at least one DCI comprises at least one of a DCI format, an aggregation level and a candidate of the aggregation level.