Broadcast and system information for machine type communication

• US 9,826,506 B2
• Filed: 07/22/2016
• Issued: 11/21/2017
• Est. Priority Date: 01/14/2013
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Xu, Hao, Chen, Wanshi, Gaal, Peter, Ji, Tingfang, Griot, Miguel
• Primary Examiner(s): HO, DUC CHI
• Application Number:
  US15/217,917
• Publication Number:
  US 20160345296A1
• Time in Patent Office: 487 Days
• Field of Search: 455450, 4554221
• CPC Class Codes: H04L 41/0866 Checking the configuration
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition
• 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 28/18 Negotiating wireless communication parameters
• CPC Class Codes: H04W 4/70 Services for machine-to-machine communication [M2M] or machine type communication [MTC]
• CPC Class Codes: H04W 48/10 using broadcasted information
• CPC Class Codes: H04W 48/16 Discovering, processing access restriction or access information
• CPC Class Codes: H04W 72/30 Resource management for broadcast services
• CPC Class Codes: H04W 72/51 based on terminal or device properties
• CPC Class Codes: H04W 92/18 between terminal devices

Abstract

Methods, systems, and devices are described for facilitating Machine Type Communication in a wireless communications system. Link budget-limited MTC devices, may be supported. An MTC physical broadcast channel may be utilized for the Machine Type Communication. The MTC physical broadcast channel may be transmitted over one or more subframes different from a regular physical broadcast channel. The payload for the MTC physical broadcast channel may be reduced. The MTC physical broadcast channel may also be utilized to indicate the presence of paging and/or to indicate a change in system information. Some embodiments utilize one or more MTC-specific system information blocks. The MTC-specific system information blocks may combine and/or simplify multiple system information blocks. The location of the MTC system information blocks may be predetermined or information about their location may be transmitted over the MTC physical broadcast channel. An enhanced paging channel may be used to indicate system information updates.

Claims

1. A method for facilitating Machine Type Communication (MTC) in a wireless communications system, comprising:

configuring an MTC-specific system information block that comprises first system information included in a first system information block and second system information included in a second system information block, wherein the first system information block and the second system information block are each selected from a group that consists of system information block 1 (SIB1), system information block 2 (SIB2), and system information block 12 (SIB12); and

transmitting the MTC-specific system information block to a plurality of MTC devices.

2. The method of claim 1, wherein the MTC-specific system information block comprises fields for:

cell access information, scheduling information for other system information blocks, and radio resource configuration information.

3. The method of claim 1, wherein the MTC-specific system information block comprises:

fields for cell access information and cell selection information;

or

fields for scheduling information for other system information blocks.

4. The method of claim 1, wherein the MTC-specific system information block comprises fields for:

MTC random access channel (RACH) configuration information or MTC paging channel configuration information.

5. The method of claim 1, wherein the MTC-specific system information block consists of fields for:

physical uplink shared channel (PUSCH) configuration information, power control, and a timer.

6. The method of claim 1, wherein the MTC-specific system information block comprises:

fields for radio resource configuration information other than physical uplink control channel (PUSCH) configuration information and sounding reference signal (SRS) configuration information.

7. The method of claim 1, wherein the MTC-specific system information block is located at one or more predetermined locations.

8. The method of claim 7, wherein the one or more predetermined locations are a function of a cell ID, a cyclic prefix length, and a carrier configuration.

9. The method of claim 1, further comprising:

transmitting information regarding one or more locations of the MTC-specific system information block over an MTC physical broadcast channel.

10. An apparatus for facilitating Machine Type Communication (MTC) in a wireless communications system, comprising:

means for configuring an MTC-specific system information block that comprises first system information included in a first system information block and second system information included in a second system information block, wherein the first system information block and the second system information block are each selected from a group that consists of system information block 1 (SIB1), system information block 2 (SIB2), and system information block 12 (SIB12); and

a transceiver configured to transmit the MTC-specific system information block to a plurality of MTC devices.

11. An apparatus for facilitating Machine Type Communication (MTC) in a wireless communications system, comprising:

a processor;

memory in electronic communication with the processor; and

instructions stored in the memory, the instructions being executable by the processor to cause the apparatus to;

configure an MTC-specific system information block that comprises first system information included in a first system information block and second system information included in a second system information block, wherein the first system information block and the second system information block are each selected from a group that consists of system information block 1 (SIB1), system information block 2 (SIB2), and system information block 12 (SIB12); and

transmit the MTC-specific system information block.

12. The apparatus of claim 11, wherein the MTC-specific system information block comprises fields for:

cell access information, scheduling information for other system information blocks, and radio resource configuration information.

13. The apparatus of claim 11, wherein the MTC-specific system information block comprises:

fields for cell access information and cell selection information;

or

fields for scheduling information for other system information blocks.

14. The apparatus of claim 11, wherein the MTC-specific system information block comprises fields for:

MTC random access channel (RACH) configuration information or MTC paging channel configuration information.

15. The apparatus of claim 11, wherein the MTC-specific system information block consists of fields for:

physical uplink shared channel (PUSCH) configuration information, power control, and a timer.

16. The apparatus of claim 11, wherein the MTC-specific system information block comprises:

fields for radio resource configuration information other than physical uplink control channel (PUSCH) configuration information and sounding reference signal (SRS) configuration information.

17. The apparatus of claim 11, wherein the MTC-specific system information block is located at one or more predetermined locations.

18. The apparatus of claim 17, wherein the one or more predetermined locations are a function of a cell ID, a cyclic prefix length, and a carrier configuration.

19. The apparatus of claim 11, wherein the instructions are executable by the processor to cause the apparatus to:

transmit information regarding one or more locations of the MTC-specific system information block over an MTC physical broadcast channel.

20. A non-transitory computer-readable medium storing code for Machine Type Communication (MTC) in a wireless communications system, the code comprising instructions executable to:

transmit an MTC-specific system information block that comprises first system information included in a first system information block and second system information included in a second system information block, wherein the first system information block and the second system information block are each selected from a group that consists of system information block 1 (SIB1), system information block 2 (SIB2), and system information block 12 (SIB12); and

transmit the MTC-specific system information block to a plurality of MTC devices.