Methods and apparatus for managing machine-type communications

• US 9,749,771 B2
• Filed: 03/15/2013
• Issued: 08/29/2017
• 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
• Primary Examiner(s): Oveissi, David
• Application Number:
  US13/843,985
• Publication Number:
  US 20130301524A1
• Time in Patent Office: 1,628 Days
• 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, at a base station, resources within a narrow bandwidth within a wide system bandwidth for MTC communications;

generating a reduced master information block (MIB) for MTC, the reduced MIB including a subset of control information values in a MIB of the wireless network, the subset of control information values excluding one or more control information values associated with the MIB of the wireless network;

prioritizing communication of an MTC control channel over at least one legacy channel such that at least one legacy channel is punctured with the MTC control channel for MTC; and

transmitting the reduced MIB over resources allocated for MTC in the narrow bandwidth in the MTC control channel that punctures the at least one legacy channel in the wide system bandwidth, wherein the transmission uses UE-specific demodulation reference signal-based demodulation, and 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.

2. The method of claim 1, wherein the transmission is performed with single layer beamforming.

3. The method of claim 1, wherein the transmitting comprises transmitting the reduced MIB in a fixed location, wherein the MIB comprises a demodulation reference signal and a fixed modulation and coding scheme.

4. The method of claim 1, wherein the reduced MIB comprises a MIB combined with a system information block.

5. The method of claim 1, wherein the transmitting comprises scrambling a cyclic redundancy check for the reduced MIB to indicate antenna information.

6. The method of claim 1, wherein the reduced MIB comprises a system information block (SIB) that indicates a resource location and a modulation and coding scheme of a next SIB.

7. An apparatus for providing machine-type-communication (MTC) in a wireless network, comprising:

means for allocating, at a base station, resources within a narrow bandwidth within a wide system bandwidth for MTC communications;

means for generating a reduced master information block (MIB) for MTC, the reduced MIB including a subset of control information values in a MIB of the wireless network, the subset of control information values excluding one or more control information values associated with the MIB of the wireless network;

means for prioritizing communication of an MTC control channel over at least one legacy channel such that at least one legacy channel is punctured with the MTC control channel for MTC; and

means for transmitting the reduced MIB over resources allocated for MTC in the narrow bandwidth in the MTC control channel that punctures the at least one legacy channel in the wide system bandwidth, wherein the transmission uses UE-specific demodulation reference signal-based demodulation, and 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.

8. The apparatus of claim 7, wherein the transmission is performed with single layer beamforming.

9. The apparatus of claim 7, wherein the transmitting comprises transmitting the reduced MIB in a fixed location, wherein the MIB comprises a demodulation reference signal and a fixed modulation and coding scheme.

10. The apparatus of claim 7, wherein the reduced MIB comprises a MIB combined with a system information block.

11. The apparatus of claim 7, wherein the transmitting comprises scrambling a cyclic redundancy check for the reduced MIB to indicate antenna information.

12. The apparatus of claim 7, wherein the reduced MIB comprises a system information block (SIB) that indicates a resource location and a modulation and coding scheme of a next SIB.

13. An apparatus for providing machine-type-communication (MTC) in a wireless network:

a memory; and

at least one processor coupled to the memory and configured to;

allocate, at a base station, resources within a narrow bandwidth within a wide system bandwidth for MTC communications;

generate a reduced master information block (MIB) for MTC, the reduced MIB including a subset of control information values in a MIB of the wireless network, the subset of control information values excluding one or more control information values associated with the MIB of the wireless network;

prioritize communication of an MTC control channel over at least one legacy channel such that at least one legacy channel is punctured with the MTC control channel for MTC; and

transmit the reduced MIB over resources allocated for MTC in the narrow bandwidth in the MTC control channel that punctures the at least one legacy channel in the wide system bandwidth, wherein the transmission uses UE-specific demodulation reference signal-based demodulation, and 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 13, wherein the transmission is performed with single layer beamforming.

15. The apparatus of claim 13, wherein the reduced MIB is transmitted in a fixed location, wherein the MIB comprises a demodulation reference signal and a fixed modulation and coding scheme.

16. The apparatus of claim 13, wherein the reduced MIB comprises a MIB combined with a system information block.

17. The apparatus of claim 13, wherein to transmit the reduced MIB, the at least one processor is configured to scramble a cyclic redundancy check for the reduced MIB to indicate antenna information.

18. The apparatus of claim 13, wherein the reduced MIB comprises a system information block (SIB) that indicates a resource location and a modulation and coding scheme of a next SIB.

19. A non-transitory computer-readable medium storing computer-executable code, comprising code to:

allocate, at a base station, resources within a narrow bandwidth within a wide system bandwidth for MTC communications;

generate a reduced master information block (MIB) for MTC, the reduced MIB including a subset of control information values in a MIB of a wireless network, the subset of control information values excluding one or more control information values associated with the MIB of the wireless network;

prioritize communication of an MTC control channel over at least one legacy channel such that at least one legacy channel is punctured with the MTC control channel for MTC; and

transmit the reduced MIB over resources allocated for MTC in the narrow bandwidth in the MTC control channel that punctures the at least one legacy channel in the wide system bandwidth, wherein the transmission uses UE-specific demodulation reference signal-based demodulation, and 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.

20. The computer-readable medium of claim 19, wherein the transmission is performed with single layer beamforming.

21. The computer-readable medium of claim 19, wherein the code to transmit comprises code to transmit the reduced MIB in a fixed location, wherein the MIB comprises a demodulation reference signal and a fixed modulation and coding scheme.

22. The computer-readable medium of claim 19, wherein the reduced MIB comprises a MIB combined with a system information block.

23. The computer-readable medium of claim 19, wherein the code to transmit comprises code to scramble a cyclic redundancy check for the reduced MIB to indicate antenna information.

24. The computer-readable medium of claim 19, wherein the reduced MIB comprises a system information block (SIB) that indicates a resource location and a modulation and coding scheme of a next SIB.