Method of handling resource allocation for MTC and related communication device

• US 10,091,605 B2
• Filed: 07/24/2015
• Issued: 10/02/2018
• Est. Priority Date: 11/08/2011
• Status: Active Grant

• Current Assignee: Acer, Inc.
• Original Assignee: Industrial Technology Research Institute
• Inventors: Lee, Chien-Min
• Primary Examiner(s): Orgad, Edan
• Assistant Examiner(s): Latorre, Ivan O
• Application Number:
  US14/807,897
• Publication Number:
  US 20150334510A1
• Time in Patent Office: 1,166 Days
• Field of Search: 370230, 370328, 370329, 370330, 370336, 370431, 4554221, 4554351, 455509
• CPC Class Codes: H04J 11/0069 Cell search, i.e. determining cell identity [cell-ID] design of multiplexing codes H04J13/00; processing access restriction or access information H04W48/16; discovery of network devices for network data management H04W8/005; sounding signals for channel estimation H04L25/0226; structure of reference signals in multicarrier modulation systems H04L27/2613; frame, time or carrier synchronisation in multicarrier modulation systems H04L27/2655
• CPC Class Codes: H04W 36/24 Reselection being triggered by specific parameters
• CPC Class Codes: H04W 4/70 Services for machine-to-machine communication [M2M] or machine type communication [MTC]
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 74/002 Transmission of channel access control information
• CPC Class Codes: H04W 74/0833 Random access procedures, e.g. with 4-step access

Abstract

A method of performing machine type communication (MTC) for a communication device in a wireless communication system comprises performing a first MTC with a network of the wireless communication system by using a first subband resource of at least one subband resource; and performing a second MTC with the network by using a second subband resource of the at least one subband resource, after performing the first MTC; wherein a carrier frequency of the communication device is switched from a carrier frequency of the first subband resource to a carrier frequency of the second subband resource before performing the second MTC with the network, when the first subband resource and the second subband resource are not in a same maximum bandwidth supported by the communication device.

Claims

1. A method of performing machine type communication (MTC) for a communication device in a wireless communication system, the method comprising:

performing a first MTC with a cell of a network of the wireless communication system by using a first subband resource of at least one subband resource; and

performing a second MTC with the cell of the network by using a second subband resource of the at least one subband resource, after performing the first MTC;

wherein a carrier frequency of the communication device is switched from a carrier frequency of the first subband resource to a carrier frequency of the second subband resource before performing the second MTC with the network, when the first subband resource and the second subband resource are not in a same maximum bandwidth supported by the communication device;

wherein the first subband resource and the second subband resource are comprised in a plurality of subband resources, and each of the plurality of subband resources are not overlapped.

2. The method of claim 1, wherein each of the at least one subband resource is a division of physical resource managed by the network, and comprises at least one resource block (RB) in a corresponding subband.

3. The method of claim 1, wherein the communication device is a MTC device.

4. The method of claim 1, wherein the communication device selects and switches to the second subband resource according to at least one of a higher layer signaling transmitted by the network, a random selection, an application type performed by the communication device, capability of the communication device and a subband configuration transmitted by the network.

5. The method of claim 4, further comprising:

replying an acknowledgement corresponding to the higher layer signaling to the network within a predetermined time interval, after receiving the higher layer signaling.

6. The method of claim 1, wherein the communication device performs a cell search procedure when performing the first MTC, and performs a random access (RA) procedure when performing the second MTC.

7. The method of claim 1, wherein a bandwidth of the first subband resource is approximately 1.4 MHz, and a bandwidth of the second subband resource is approximately 1.4 MHz.

8. The method of claim 1, wherein a mapping of a plurality of resource blocks (RBs) in the first subband resource or the first subband resource is aligned with a legacy RB mapping.

9. The method of claim 1, wherein the first subband resource comprises a first plurality of contiguous RBs, and the second subband resource comprises a second plurality of contiguous RBs.

10. The method of claim 1, wherein the first MTC comprises a reception of first system information, the second MTC comprises a reception of second system information, and the reception of the second system information is determined according to the first system information.

11. The method of claim 10, wherein the first system information indicates where to receive the second system information.

12. A communication device for performing machine type communication (MTC), comprising:

a storage unit for storing instructions of;

performing a first MTC with a cell of a network of the wireless communication system by using a first subband resource of at least one subband resource; and

performing a second MTC with the cell of the network by using a second subband resource of the at least one subband resource, after performing the first MTC;

wherein a carrier frequency of the communication device is switched from a carrier frequency of the first subband resource to a carrier frequency of the second subband resource before performing the second MTC with the network, when the first subband resource and the second subband resource are not in a same maximum bandwidth supported by the communication device;

wherein the first subband resource and the second subband resource are comprised in a plurality of subband resources, and each of the plurality of subband resources are not overlapped; and

a processing means, coupled to the storage unit, configured to execute the instructions stored in the storage unit.

13. The communication device of claim 12, wherein each of the at least one subband resource is a division of physical resource managed by the network, and comprises at least one resource block (RB) in a corresponding subband.

14. The communication device of claim 12, wherein the communication device selects and switches to the second subband resource according to at least one of a higher layer signaling transmitted by the network, a random selection, an application type performed by the communication device, capability of the communication device and a subband configuration transmitted by the network.

15. The communication device of claim 14, further comprising:

replying an acknowledgement corresponding to the higher layer signaling to the network within a predetermined time interval, after receiving the higher layer signaling.

16. The communication device of claim 12, wherein the communication device performs a cell search procedure when performing the first MTC, and performs a random access (RA) procedure when performing the second MTC.

17. The communication device of claim 12, wherein a bandwidth of the first subband resource is approximately 1.4 MHz, and a bandwidth of the second subband resource is approximately 1.4 MHz.

18. The communication device of claim 12, wherein a mapping of a plurality of resource blocks (RBs) in the first subband resource or the first subband resource is aligned with a legacy RB mapping.

19. The communication device of claim 12, wherein the first subband resource comprises a first plurality of contiguous RBs, and the second subband resource comprises a second plurality of contiguous RBs.

20. The communication device of claim 12, wherein the first MTC comprises a reception of first system information, the second MTC comprises a reception of second system information, and the reception of the second system information is determined according to the first system information.

21. The communication device of claim 20, wherein the first system information indicates where to receive the second system information.