METHOD AND APPARATUS FOR MULTIPLEXING MACHINE TYPE COMMUNICATION DATA OF MULTIPLE MTC DEVICES IN A WIRELESS NETWORK ENVIRONMENT

• US 20130195087A1
• Filed: 10/13/2011
• Published: 08/01/2013
• Est. Priority Date: 10/13/2010
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Jamadagni, Satish Nanjunda Swamy, Hirisave, Pradeep Krishnamurthy, Ganapathi, Sarvesha Anegundi
• Granted Patent: US 10,284,319 B2
• Time in Patent Office: Days
• US Class Current: 370/336
• CPC Class Codes: H04J 3/1694 Allocation of channels in TDM/TDMA networks, e.g. distributed multiplexers Passive Optical Networks H04Q11/0062
• 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 48/08 Access restriction or access information delivery, e.g. discovery data delivery signalling during connection H04W76/00
• CPC Class Codes: H04W 72/0446 Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

A method and a system of multiplexing Machine Type Communication (MTC) data of MTC devices over a single radio block period are provided. The method includes providing, by a base station, resource information to a plurality of MTC devices, where the resource information includes a time slot allocated to the plurality of MTC devices in each frame of a radio block period, a temporary flow identifier, and the sub-block index information. The method further includes packing MTC data associated with each of the plurality of MTC devices in a data packet. Furthermore, the method includes multiplexing the data packet including the MTC data associated with the plurality of MTC devices in downlink over the time slot allocated in each frame of the radio block period.

Claims

1. A method of multiplexing Machine Type Communication (MTC) data of multiple MTC devices in a wireless network environment, the method comprising:

providing, by a base station, resource information to a plurality of MTC devices, wherein the resource information includes a time slot allocated to the plurality of MTC devices in each frame of a radio block period, a Temporary Flow Identifier (TFI), and sub-block index information;

packing MTC data associated with each of the plurality of MTC devices in a data packet; and

multiplexing the data packet including the MTC data associated with the plurality of MTC devices in downlink over the time slot allocated in each frame of the radio block period.

2. The method of claim 1, wherein the data packet comprises at least one of a common header and multiple sub-blocks.

3. The method of claim 2, wherein each of the multiple sub-blocks comprises at least one of an MTC device specific header and an MTC device specific data unit.

4. The method of claim 3, wherein the packing of the MTC data associated with each of the plurality of MTC devices in the data packet comprises:

packing MTC data associated with each of the plurality of MTC devices in an MTC specific data unit of at least one of the multiple sub-blocks; and

encoding a sub-block index number of the at least one of the multiple sub-blocks in the MTC device specific header.

5. The method of claim 4, wherein the sub-block index number indicates presence of the MTC data associated with one of the plurality of MTC devices in the at least one sub-block.

6. The method of claim 5, wherein the sub-block index information is indicative of the sub-index number of the at least one of the multiple sub-blocks which contains the MTC data associated with one of the plurality of MTC devices.

7. The method of claim 6, wherein the TFI comprises a user specific TFI assigned to each of the plurality of MTC devices and a group TFI assigned to the plurality of MTC devices.

8. An apparatus comprising:

a processor; and

a memory coupled to the processor, wherein the memory includes a Machine Type Communication (MTC) data multiplexing module configured for;

providing resource information to a plurality of MTC devices, wherein the resource information includes a time slot allocated to the plurality of MTC devices in each frame of a radio block period, a Temporary Flow Identifier (TFI), and sub-block index information;

packing MTC data associated with each of the plurality of MTC devices in a data packet; and

multiplexing the data packet including the MTC data associated with the plurality of MTC devices in downlink over the time slot allocated in each frame of the radio block period.

9. The apparatus of claim 8, wherein the data packet comprises at least one of a common header and multiple sub-blocks.

10. The apparatus of claim 9, wherein each of the multiple sub-blocks comprises at least one of an MTC device specific header and an MTC device specific data unit.

11. The apparatus of claim 10, wherein the MTC data multiplexing module is configured for:

packing MTC data associated with each of the plurality of MTC devices in an MTC specific data unit of at least one of the multiple sub-blocks; and

encoding a sub-block index number of the at least one of the multiple sub-blocks in the MTC device specific header.

12. The apparatus of claim 11, wherein the sub-block index number indicates presence of the MTC data associated with one of the plurality of MTC devices in the at least one sub-block.

13. The apparatus of claim 12, wherein the sub-block index information is indicative of the sub-index number of the at least one of the multiple sub-blocks which contains the MTC data associated with one of the plurality of MTC devices.

14. The apparatus of claim 13, wherein the TFI comprises a user specific TFI assigned to each of the plurality of MTC devices and a group TFI assigned to the plurality of MTC devices.

15. A method of multiplexing Machine Type Communication (MTC) data of multiple MTC devices in a wireless network environment, the method comprising:

receiving a packet channel request from an MTC device belonging to a group of MTC devices;

providing, by a base station, resource information to MTC devices belonging to the group of MTC devices in response to the packet channel request, wherein the resource information includes at least one time slot allocated to each of the MTC devices in a radio block period, Uplink Status Flag (USF) information, and burst level allocation information; and

receiving a data block from each of the MTC devices in uplink over the at least one time slot allocated in the radio block period based on the USF information and the burst level allocation information.

16. The method of claim 15, wherein, in the receiving of the data block from each of the MTC devices, the data block comprises an MTC data burst and a Temporary Flow Identifier (TFI) associated with each of the MTC devices.

17. The method of claim 15, wherein the packet channel request includes a random reference number which is a function of a group identifier associated with the group of MTC devices, a subscriber identifier associated with the MTC device, and a random number.

18. The method of claim 15, wherein the providing of the resource information to the MTC devices belonging to the group of MTC devices in response to the packet channel request comprises:

ordering each of the MTC devices via the USF information to transmit the data block in uplink over the at least one time slot allocated in the radio block period.

19. The method claim 15, wherein the USF information includes a USF specific to each of the MTC devices or a common USF associated with the group of MTC devices.

20. The method of claim 15, wherein the burst level allocation information indicates a burst number or a sub-block index number allocated in a single radio block period to each of the plurality of MTC devices for transmitting the data block in uplink direction.

21. An apparatus comprising:

a processor; and

a memory coupled to the processor, wherein the memory includes a Machine Type Communication (MTC) data multiplexing module capable of;

receiving a packet channel request from an MTC device belonging to a group of MTC devices;

providing resource information to MTC devices belonging to the group of MTC devices in response to the packet channel request, wherein the resource information includes at least one time slot allocated to each of the MTC devices in a radio block period, Uplink Status Flag (USF) information, and burst level allocation information; and

receiving a data block from each of the MTC devices in uplink over the at least one time slot allocated in the radio block period based on the USF information and the burst level allocation information.

22. The apparatus of claim 21, wherein the data block comprises an MTC data burst and a Temporary Flow Identifier (TFI) associated with the each of the MTC devices.

23. The apparatus of claim 21, wherein the packet channel request includes a random reference number which is a function of a group identifier associated with the group of MTC devices, a subscriber identifier associated with the MTC device, and a random number.

24. The apparatus of claim 21, wherein the MTC data multiplexing module orders each of the MTC devices via the USF information to transmit the data block in uplink over the at least one time slot allocated in the radio block period.

25. The apparatus claim 21, wherein the USF information includes a USF specific to each of the MTC devices or a common USF associated with the group of MTC devices.

26. The apparatus of claim 21, wherein the burst level allocation information indicates a burst number or a sub-block index number allocated within a single radio block period to each of the plurality of MTC devices for transmitting the data block in uplink direction.