METHOD AND DEVICE FOR ALLOCATING GROUP RESOURCES FOR M2M DEVICE IN WIRELESS COMMUNICATION SYSTEM

• US 20130343323A1
• Filed: 03/09/2012
• Published: 12/26/2013
• Est. Priority Date: 03/09/2011
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Kang, Seunghyun, Ryu, Kiseon, Cho, Hangyu, Choi, Jinsoo
• Granted Patent: US 9,191,942 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04W 4/70 Services for machine-to-machine communication [M2M] or machine type communication [MTC]
• CPC Class Codes: H04W 48/16 Discovering, processing access restriction or access information
• CPC Class Codes: H04W 72/04 Wireless resource allocation
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 8/186 Processing of subscriber group data
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks
• CPC Class Codes: H04W 92/18 between terminal devices

Abstract

The present invention relates to wireless communication, and more specifically, to a method and a device for allocating group resources for a M2M device to which machine to machine (M2M) communication is applied in a wireless communication system. A method for allowing a machine to machine (M2M) device to be allocated with resources with resources in a wireless communication system comprises the steps of: receiving first information for identifying said M2M device from a base station; receiving, from said base station, group resource allocations, second information for identifying a first group to which said M2M device belongs, and third information for identifying said M2M device within said first group; and determining first group resource allocations corresponding to said second information from said group resource allocations, without using said first information, and then transmitting first data by using resource allocations corresponding to said third information from said first group resource allocations.

Claims

1. A method for allocating resources at a M2M (Machine to Machine) device in a wireless communication system, the method comprises:

receiving first information for identifying the M2M device from a base station;

receiving from the base station group resource allocation, second information for identifying a first group to which the M2M device belongs, and third information for identifying the M2M device within the first group; and

deciding a first group resource allocation corresponding to the second information among the group resource allocation without using the first information, and transmitting first data by using resource allocation corresponding to the third information among the first group resource allocation.

2. The method of claim 1, wherein the first information corresponds to a STID (Station Identifier), the second information corresponds to a group ID (Group Identifier), and the third information corresponds to a user bitmap index.

3. The method of claim 1, wherein the M2M device corresponds to a fixed device having no mobility.

4. The method of claim 1, further comprising:

entering an idle mode after transmitting the first data; and

when a paging group message is received from the base station, transmitting a MAC (Media Access Control) address used in a previous network entry to the base station.

5. The method of claim 4, further comprising:

receiving the second information from the base station; and

transmitting second data to the base station by using resource allocation corresponding to the third information.

6. The method of claim 1, further comprising:

transmitting bandwidth request (BR) information to the base station, and

wherein the bandwidth request information includes the second information and the third information.

13. The M2M device of claim 1, wherein the M2M device corresponds to a fixed device having no mobility.

7. A method for allocating resources at a base station in a wireless communication system, the method comprises:

transmitting first information for identifying a M2M device to the M2M device; and

transmitting group resource allocation, second information for identifying a first group to which the M2M device belongs, and third information for identifying the M2M device within the first group to the M2M device, wherein the M2M device are allocated with the resources by using the second information and the third information and without using the first information.

8. The method of claim 7, wherein the first information corresponds to a STID (Station Identifier), the second information corresponds to a group ID (Group Identifier), and the third information corresponds to a user bitmap index.

9. The method of claim 7, further comprising:

transmitting a paging group message to the M2M device;

receiving a MAC address used in a previous network entry from the M2M device; and

determining whether or not the M2M device belongs to the first group by using the received MAC (Media Access Control) address.

10. The method of claim 9, further comprising:

when the M2M device belongs to the first group, transmitting the second information to the M2M device.

11. A M2M (Machine to Machine) device being allocated with resources in a wireless communication system, the M2M device comprises:

a receiving module configured to receive first information for identifying the M2M device from a base station, and receive from the base station group resource allocation, second information for identifying a first group to which the M2M device belongs, and third information for identifying the M2M device within the first group;

a processor configured to decide a first group resource allocation corresponding to the second information among the group resource allocation without using the first information; and

a transmitting module configured to transmit first data by using resource allocation corresponding to the third information among the first group resource allocation according to control of the processor.

12. The M2M device of claim 11, wherein the first information corresponds to a STID (Station Identifier), the second information corresponds to a group ID (Group Identifier), and the third information corresponds to a user bitmap index.

14. The M2M device of claim 11, wherein the processor controls the M2M device to enter an idle mode when the first data are transmitted, and

wherein when a paging group message is received from the base station, the processor controls the M2M device such that a MAC (Media Access Control) address used in a previous network entry is transmitted to the base station.

15. The M2M device of claim 14, wherein, when the receiving module receives the second information from the base station, the processor controls the M2M device such that second data is transmitted to the base station by using resource allocation corresponding to the third information.

16. The M2M device of claim 11, wherein the processor controls the M2M device such that bandwidth request (BR) information is transmitted to the base station, and

wherein the bandwidth request information includes the second information and the third information.

17. A base station allocating resources in a wireless communication system, the base station comprises:

a processor; and

a transmitting module configured to transmit first information for identifying a M2M device to the M2M device, and transmit group resource allocation, second information for identifying a first group to which the M2M device belongs, and third information for identifying the M2M device within the first group to the M2M device, according to control of the processor,

wherein the M2M device are allocated with the resources by using the second information and the third information and without using the first information.

18. The base station of claim 17, wherein the first information corresponds to a STID (Station Identifier), the second information corresponds to a group ID (Group Identifier), and the third information corresponds to a user bitmap index.

19. The base station, wherein the transmitting module transmits a paging group message to the M2M device, according to control of the processor,

wherein the base station further comprises a receiving module configured to receive a MAC address used in a previous network entry from the M2M device, and

wherein the processor determines whether or not the M2M device belongs to the first group by using the received MAC (Media Access Control) address.

20. The base station of claim 19, wherein, when the M2M device belongs to the first group, the processor transmits the second information to the M2M device.