METHOD OF RESOURCE SCHEDULING USED FOR MACHINE TYPE COMMUNICATIONS

• US 20140233515A1
• Filed: 09/14/2012
• Published: 08/21/2014
• Est. Priority Date: 09/30/2011
• Status: Abandoned Application

• Current Assignee: Alcatel-Lucent SA (Nokia Corporation)
• Original Assignee: Alcatel-Lucent SA (Nokia Corporation)
• Inventors: Chen, Yu, Zou, Jialin, Palat, Sudeep
• Application Number:
  US14/346,063
• Publication Number:
  US 20140233515A1
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04L 5/0037 Inter-user or inter-terminal allocation
• CPC Class Codes: H04L 5/0094 Indication of how sub-channels of the path are allocated
• CPC Class Codes: H04L 61/5069 for group communication, multicast communication or broadcast communication
• 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 72/12 Wireless traffic scheduling
• 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

Abstract

The invention relates to a method of implementing resource scheduling for MTC devices, the base station assigns multiple machine type communication (MTC) devices to a group, and allocates to each device a sequence number of the group respectively, informs each corresponding device of the sequence number of the device, allocates a resource set for the group, and transmits indication information, indicating the resource set, to each device via broadcast signaling, wherein, the sequence number is used to indicate the resource, in the resource set, used by the device. A MTC device determines the resource, in the resource set, used by the device based on the sequence number. The embodiment of the invention can save the overhead of MTC resource scheduling.

Claims

1. A method of implementing resource scheduling for MTC devices, in a base station, wherein, the method comprises the following:

assigning multiple MTC devices to a group, and allocating to each device a sequence number of the group respectively;

informing each corresponding device of the sequence number of the device;

allocating a resource set for the group, and transmitting indication information, indicating the resource set, to each device via broadcast signaling;

wherein, the sequence number is used to indicate the resource, in the resource set, used by the device.

2. A method of claim 1, wherein, the group has a group ID, the informing informs each device of the group ID, wherein, the group ID and the sequence number indicate the used resource.

3. A method of claim 1, wherein, the assigning comprises:

assigning the devices running the same application to the group, and allocating a sequence number for each device.

4. A method of claim 3, wherein, the method further comprises the following steps before the allocating:

informing each device of a scheduling period;

the allocating is repeated at the scheduling period.

5. A method of claim 4, wherein, the method further comprises the following:

informing each device of an updated scheduling strategy;

the scheduling strategy comprises any of the following items;

the scheduling period;

a manner in which the sequence number indicates the used resource.

6. A method of claim 1, wherein, the assigning comprises the following:

receiving scheduling requests from several devices within a certain time window, wherein the scheduling requests correspond to the same and/or different applications;

allocating the sequence numbers to the several devices.

7. A method of claim 1, wherein, the informing transmits to respective devices via broadcast the one-to-one corresponding relations between each sequence number and an ID of each device;

transmits the indication information in the physical downlink control channel.

8. A method of implementing resource scheduling, in MTC devices, wherein, the method comprises the following:

receiving a sequence number of the device in a group, wherein, the group comprises the device and at least other one MTC device;

receiving indication information, indicating a resource set, via broadcast, the resource set is allocated for the group by the base station, the sequence number is used to indicate the resource, in the resource set, used by the device;

determining the resource, in the resource set, used by the device based on the sequence number.

9. A method of claim 8, wherein, the group further has a group ID, the receiving a sequence number further receives the group ID, wherein, the group ID and the sequence number are used to indicate the used resource.

10. A method of claim 8, wherein, the device and the at least other one device run the same application.

11. A method of claim 10, wherein, the receiving indication information comprises:

monitoring continuously to receive the indication information, after the receiving a sequence number;

Or, before the receiving indication information, the method also comprises the following;

receiving a scheduling period from the base station;

the receiving indication information and the determining repeat at the scheduling period.

12. A method of claim 11, wherein, the method also comprises the following:

receiving an updated scheduling strategy from the base station;

the scheduling strategy comprises any of the following items;

the scheduling period;

a manner in which the sequence number indicates the used resource;

the receiving indication information and the determining determine the used resource by using the updated scheduling strategy.

13. A method of claim 8, wherein, the method comprises the following before receiving a sequence number:

sending a scheduling request to the base station within a certain time window.

14. A method of claim 8, wherein, the method comprises the following:

using an ID of the device to implement HARQ communication, when not correctly receiving the sequence number and/or the indication information;

communicating with the base station based on the determined resource, when correctly receiving the sequence number and/or the indication information;

and when errors occur in the communication, using the ID of the device to implement HARQ communication.

15. A method of claim 8, wherein, in the receiving a sequence number receives the one-to-one corresponding relations between each sequence number and an ID of each device via broadcast, and determines the sequence number corresponding to the device according to the ID of the device;

the receiving indication information receives the indication information in the physical downlink control channel.