PHYSICAL UPLINK CONTROL CHANEL (PUCCH) CONFIGURATION FOR MACHINE TYPE COMMUNICATIONS (MTC)

• US 20160338088A1
• Filed: 05/09/2016
• Published: 11/17/2016
• Est. Priority Date: 05/15/2015
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: FAKOORIAN, Seyed Ali Akbar, RICO ALVARINO, Alberto, CHEN, Wanshi, WANG, Michael Mao, XU, Hao
• Granted Patent: US 10,728,914 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04B 1/713 using frequency hopping
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04W 16/32 Hierarchical cell structures
• CPC Class Codes: H04W 4/70 Services for machine-to-machine communication [M2M] or machine type communication [MTC]
• CPC Class Codes: H04W 72/1263 Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 88/12 Access point controller devices

Abstract

Certain aspects of the present disclosure generally relate to wireless communications, and more specifically to determining uplink narrowband regions based on downlink resources. An example method generally includes identifying one or more uplink narrowband regions within a wider system bandwidth, based on downlink resources, and communicating using at least one of the identified narrowbands.

Claims

1. A method for wireless communications, comprising:

identifying one or more uplink narrowband regions within a wider system bandwidth, based on downlink resources; and

communicating using at least one of the identified narrowbands.

2. The method of claim 1, wherein the narrowband regions comprise no more six resource blocks (RBs).

3. The method of claim 1, wherein the identifying comprises utilizing a mapping of downlink resources to uplink resources based on a cyclic shift.

4. The method of claim 1, wherein the identifying is based on an index of a first control channel element (CCE) of a downlink message.

5. The method of claim 4, wherein the downlink message comprises a machine type communication (MTC) physical downlink control channel (MPDCCH) message.

6. The method of claim 1, wherein the identifying comprises:

identifying uplink narrowband regions in different subframes according to a frequency hopping pattern.

7. The method of claim 6, wherein the frequency hopping pattern results in mirroring narrowband regions at edges of the system bandwidth.

8. The method of claim 6, wherein the frequency hopping pattern results in the narrowband regions being fixed for a number of consecutive subframes.

9. An apparatus for wireless communications, comprising:

at least one processor configured to identify one or more uplink narrowband regions within a wider system bandwidth, based on downlink resources;

a transceiver configured to communicate using at least one of the identified narrowbands; and

a memory coupled with the at least one processor.

10. The apparatus of claim 10, wherein the narrowband regions comprise no more than six resource blocks (RBs).

11. The apparatus of claim 10, wherein the identifying comprises utilizing a mapping. of downlink resources to uplink resources based on a cyclic shift.

12. The apparatus of claim 10, wherein the identifying is based on an index of a first control channel element (CCE) of a downlink message.

13. The apparatus of claim 12, wherein the downlink message comprises a machine type communication (MTC) physical downlink control channel (MPDCCH) message.

14. The apparatus of claim 10, wherein the identifying comprises:

identifying uplink narrowband regions in different subframes according to a frequency hopping pattern.

15. The apparatus of claim 14, wherein the frequency hopping pattern results in mirroring narrowband regions at edges of the system bandwidth.

16. The apparatus of claim 14, wherein the frequency hopping pattern results in the narrowband regions being fixed for a number of consecutive subframes.

17. An apparatus for wireless communications, comprising:

means for identifying one or more uplink regions within a wider system bandwidth, based on downlink resources; and

communicating using at least one of the identified narrowbands.

18. The apparatus of claim 17, wherein the narrowband regions comprise no more than six resource blocks (RBs).

19. The apparatus of claim 17, wherein the means for identifying comprises means for utilizing a mapping of downlink resources to uplink resources based on a cyclic shift.

20. The apparatus of claim 17, wherein the identifying is based on an index of a first control channel element (CCE) of a downlink message.

21. The apparatus of claim 20, wherein the downlink message comprises a machine type communication (MTC) physical downlink control channel (PDCCH) message.

22. The apparatus of claim 17, wherein the means for identifying comprises identifying uplink narrowband regions in different subframes according to a frequency hopping pattern.

23. The apparatus of claim 22, wherein the frequency hopping pattern results in mirroring narrowband regions at edges of the system bandwidth.

24. The apparatus of claim 22, wherein the frequency hopping pattern results in the narrowband regions being fixed for a number of consecutive subframes.

25. A computer-readable medium comprising instructions which, when executed by one or more processors, performs an operation comprising:

identifying one or more uplink narrowband regions within a wider system bandwidth, based on downlink resources; and

communicating using at least one of the identified narrowbands.

26. The computer-readable medium of claim 25, wherein the narrowband regions comprise no more than six resource blocks (RBs).

27. The computer-readable medium of claim 25, wherein the identifying comprises utilizing a mapping of downlink resources to uplink resources based on a cyclic shift.

28. The computer-readable medium of claim 25, wherein the identifying is based on an index of a first control channel element (CCE) of a downlink message.

29. The computer-readable medium of claim 25, wherein the identifying comprises:

identifying uplink narrowband regions in different subframes according to a frequency hopping pattern.

30. The computer-readable medium of claim 29,wherein the frequency hopping pattern results in at least one of:

mirroring narrowband regions at edges of the system bandwidth;

or

the narrowband regions being fixed for a number of consecutive subframes.