METHODS AND APPARATUS FOR MANAGING MACHINE-TYPE COMMUNICATIONS

• US 20130301552A1
• Filed: 03/15/2013
• Published: 11/14/2013
• Est. Priority Date: 05/11/2012
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: XU, Hao, CHEN, Wanshi, WEI, Yongbin, GAAL, Peter, JI, Tingfang
• Granted Patent: US 9,510,132 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04B 7/0413 MIMO systems
• CPC Class Codes: H04W 16/28 using beam steering
• CPC Class Codes: H04W 28/06 Optimizing the usage of the radio link, e.g. header compression, information sizing , discarding information system modifying transmission characteristic according to link quality by modifying frame length H04L1/0007; dynamic adaptation of the packet size for flow control or congestion control H04L47/365
• CPC Class Codes: H04W 4/70 Services for machine-to-machine communication [M2M] or machine type communication [MTC]
• CPC Class Codes: H04W 48/12 using downlink control channel
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 84/042 Public Land Mobile systems, e.g. cellular systems

Abstract

The described aspects include methods and apparatus providing MTC in a wireless network. In an aspect, a narrow bandwidth within a wide system bandwidth is allocated for communicating data related to MTC. MTC control data generated for communicating over one or more MTC control channels for an MTC UE within the narrow bandwidth is transmitted over the one or more MTC control channels. The one or more MTC channels are multiplexed with one or more legacy channels over the wide system bandwidth. Other aspects are provided for transmission mode and content of the MTC control data or other MTC data.

Claims

1. A method for providing machine-type-communication (MTC) in a wireless network, comprising:

allocating a narrow bandwidth within a wide system bandwidth for communicating data related to MTC;

generating MTC control data for communicating over one or more MTC control channels for an MTC UE within the narrow bandwidth; and

transmitting the one or more MTC control channels multiplexed with one or more legacy channels over the wide system bandwidth.

2. The method of claim 1, further comprising puncturing at least one of the one or more legacy channels in the wide system bandwidth with at least one of the one or more MTC control channels, wherein the at least one legacy channel is a legacy control channel that overlaps symbols with the at least one MTC control channel in the wide system bandwidth.

3. The method of claim 1, further comprising puncturing at least one of the one or more MTC control channels in the wide system bandwidth with at least one of the one or more legacy channels, wherein the at least one legacy channel is a legacy control channel that overlaps symbols with the at least one MTC control channel in the wide system bandwidth.

4. The method of claim 1, further comprising shifting, in frequency, at least one of the one or more MTC control channels in the wide system bandwidth or at least one of the one or more legacy channels that overlap the at least one MTC control channel.

5. The method of claim 1, further comprising shifting, in time, at least one of the one or more MTC control channels in the wide system bandwidth or at least one of the one or more legacy channels that overlap the at least one MTC control channel.

6. The method of claim 1, further comprising indicating a barred frequency bandwidth for non-MTC UEs in a system information block.

7. The method of claim 1, further comprising including an MTC indicator bit in a system information block.

8. The method of claim 1, wherein the MTC control channel spans symbols in a legacy data region of the wide system bandwidth.

9. The method of claim 8, further comprising:

determining a current subframe for transmitting MTC; and

limiting a legacy control region of the wide system bandwidth to a number of symbols preceding the symbols based on determining the current subframe for transmitting MTC.

10. The method of claim 9, wherein the MTC control channel begins at a symbol following a last symbol in the number of symbols for the legacy control region.

11. An apparatus for wireless communication, comprising:

means for allocating a narrow bandwidth within a wide system bandwidth for communicating data related to MTC;

means for generating MTC control data for communicating over one or more MTC control channels for an MTC UE within the narrow bandwidth; and

means for transmitting the one or more MTC control channels multiplexed with one or more legacy channels over the wide system bandwidth.

12. The apparatus of claim 11, further comprising means for puncturing at least one of the one or more legacy channels in the wide system bandwidth with at least one of the one or more MTC control channels, wherein the at least one legacy channel is a legacy control channel that overlaps symbols with the at least one MTC control channel in the wide system bandwidth.

13. The apparatus of claim 11, further comprising means for puncturing at least one of the one or more MTC control channels in the wide system bandwidth with at least one of the one or more legacy channels, wherein the at least one legacy channel is a legacy control channel that overlaps symbols with the at least one MTC control channel in the wide system bandwidth.

14. The apparatus of claim 11, further comprising means for shifting, in frequency, at least one of the one or more MTC control channels in the wide system bandwidth or at least one of the one or more legacy channels that overlap the at least one MTC control channel.

15. The apparatus of claim 11, further comprising means for shifting, in time, at least one of the one or more MTC control channels in the wide system bandwidth or at least one of the one or more legacy channels that overlap the at least one MTC control channel.

16. The apparatus of claim 11, further comprising means for indicating a barred frequency bandwidth for non-MTC UEs in a system information block.

17. The apparatus of claim 11, further comprising means for including an MTC indicator bit in a system information block.

18. The apparatus of claim 11, wherein the MTC control channel spans symbols in a legacy data region of the wide system bandwidth.

19. The apparatus of claim 18, further comprising:

means for determining a current subframe for transmitting MTC; and

means for limiting a legacy control region of the wide system bandwidth to a number of symbols preceding the symbols based on determining the current subframe for transmitting MTC.

20. The apparatus of claim 19, wherein the MTC control channel begins at a symbol following a last symbol in the number of symbols for the legacy control region.

21. An apparatus for wireless communication, comprising:

a processing system configured to;

allocate a narrow bandwidth within a wide system bandwidth for communicating data related to MTC;

generate MTC control data for communicating over one or more MTC control channels for an MTC UE within the narrow bandwidth; and

transmit the one or more MTC control channels multiplexed with one or more legacy channels over the wide system bandwidth.

22. The apparatus of claim 21, the processing system further configured to puncture at least one of the one or more legacy channels in the wide system bandwidth with at least one of the one or more MTC control channels, wherein the at least one legacy channel is a legacy control channel that overlaps symbols with the at least one MTC control channel in the wide system bandwidth.

23. The apparatus of claim 21, the processing system further configured to puncture at least one of the one or more MTC control channels in the wide system bandwidth with at least one of the one or more legacy channels, wherein the at least one legacy channel is a legacy control channel that overlaps symbols with the at least one MTC control channel in the wide system bandwidth.

24. The apparatus of claim 21, the processing system further configured to shift, in frequency, at least one of the one or more MTC control channels in the wide system bandwidth or at least one of the one or more legacy channels that overlap the at least one MTC control channel.

25. The apparatus of claim 21, the processing system further configured to shift, in time, at least one of the one or more MTC control channels in the wide system bandwidth or at least one of the one or more legacy channels that overlap the at least one MTC control channel.

26. The apparatus of claim 21, the processing system further configured to indicate a barred frequency bandwidth for non-MTC UEs in a system information block.

27. The apparatus of claim 21, the processing system further configured to include an MTC indicator bit in a system information block.

28. The apparatus of claim 21, wherein the MTC control channel spans symbols in a legacy data region of the wide system bandwidth.

29. The apparatus of claim 28, the processing system further configured to:

determine a current subframe for transmitting MTC; and

limit a legacy control region of the wide system bandwidth to a number of symbols preceding the symbols based on determining the current subframe for transmitting MTC.

30. The apparatus of claim 29, wherein the MTC control channel begins at a symbol following a last symbol in the number of symbols for the legacy control region.

31. A computer program product, comprising:

a computer-readable medium comprising code for;

allocating a narrow bandwidth within a wide system bandwidth for communicating data related to MTC;

generating MTC control data for communicating over one or more MTC control channels for an MTC UE within the narrow bandwidth; and

transmitting the one or more MTC control channels multiplexed with one or more legacy channels over the wide system bandwidth.

32. The computer program product of claim 31, the computer-readable medium further comprising code for puncturing at least one of the one or more legacy channels in the wide system bandwidth with at least one of the one or more MTC control channels, wherein the at least one legacy channel is a legacy control channel that overlaps symbols with the at least one MTC control channel in the wide system bandwidth.

33. The computer program product of claim 31, the computer-readable medium further comprising code for puncturing at least one of the one or more MTC control channels in the wide system bandwidth with at least one of the one or more legacy channels, wherein the at least one legacy channel is a legacy control channel that overlaps symbols with the at least one MTC control channel in the wide system bandwidth.

34. The computer program product of claim 31, the computer-readable medium further comprising code for shifting, in frequency, at least one of the one or more MTC control channels in the wide system bandwidth or at least one of the one or more legacy channels that overlap the at least one MTC control channel.

35. The computer program product of claim 31, the computer-readable medium further comprising code for shifting, in time, at least one of the one or more MTC control channels in the wide system bandwidth or at least one of the one or more legacy channels that overlap the at least one MTC control channel.

36. The computer program product of claim 31, the computer-readable medium further comprising code for indicating a barred frequency bandwidth for non-MTC UEs in a system information block.

37. The computer program product of claim 31, the computer-readable medium further comprising code for including an MTC indicator bit in a system information block.

38. The computer program product of claim 31, wherein the MTC control channel spans symbols in a legacy data region of the wide system bandwidth.

39. The computer program product of claim 38, the computer-readable medium further comprising code for:

determining a current subframe for transmitting MTC; and

limiting a legacy control region of the wide system bandwidth to a number of symbols preceding the symbols based on determining the current subframe for transmitting MTC.

40. The computer program product of claim 39, wherein the MTC control channel begins at a symbol following a last symbol in the number of symbols for the legacy control region.