METHOD OF RECEIVING MULTICAST DATA IN A WIRELESS COMMUNICATION SYSTEM, AND DEVICE FOR SAME

• US 20140140261A1
• Filed: 07/10/2012
• Published: 05/22/2014
• Est. Priority Date: 07/10/2011
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Kim, Jeongki, Yuk, Youngsoo
• Granted Patent: US 9,344,859 B2
• Time in Patent Office: Days
• US Class Current: 370/312
• CPC Class Codes: H04L 12/189 in combination with wireless systems selective distribution or broadcast in wireless communication networks H04W4/06
• CPC Class Codes: H04W 4/06 Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
• CPC Class Codes: H04W 4/70 Services for machine-to-machine communication [M2M] or machine type communication [MTC]
• CPC Class Codes: H04W 68/00 User notification, e.g. alerting and paging, for incoming communication, change of service or the like
• CPC Class Codes: H04W 76/40 for selective distribution or broadcast

Abstract

The present invention relates to a method of receiving multicast data in a wireless communication system for supporting Machine to Machine Communication, and a device for same. In more detail, the method includes: receiving a paging message including information on the timing at which the transmission of multicast data from a base station is completed in a paging listening interval; receiving the multicast data from the base station; and entering an unavailable interval when the timing is reached, at which the transmission of the multicast data is completed.

Claims

1. A method of receiving multicast data, which is received in a wireless communication system supportive of M2M (machine to machine) communication, comprising the steps of:

receiving a paging message including an information on a timing point of ending a transmission of the multicast data from a base station in a paging listening interval;

receiving the multicast data from the base station; and

entering an unavailable interval if the timing point of ending the transmission of the multicast data comes.

2. The method of claim 1, wherein the paging message includes a multicast transmission end time (MTET) field and wherein the information on the timing point of ending the transmission of the multicast data comprises a frame number for ending the transmission of the multicast data indicated by the MTET field.

3. The method of claim 1, wherein the paging message includes a duration field and wherein the information on the timing point of ending the transmission of the multicast data comprises an interval ranging from a timing point of receiving the paging message indicated by the duration field to the timing point of ending the transmission of the multicast data.

4. The method of claim 3, wherein if the paging message includes a multicast transmission start time (MTST) field, the duration filed indicates an interval ranging from a timing point indicated by the MTST field to the timing point of ending the transmission of the multicast data.

5. The method of claim 1, wherein the paging message includes a timer field and wherein the information on the timing point of ending the transmission of the multicast data comprises an interval ranging from a timing point of a last reception of the multicast data indicated by the timer field to the timing point of ending the transmission of the multicast data.

6. The method of claim 1, wherein the paging message further includes a multicast receiving mode field and wherein if the multicast receiving mode field is set to a predetermined value, the paging message includes the information on the multicast transmission end time.

7. The method of claim 1, wherein the paging message comprises an AAI-PAG-ADV message.

8. An apparatus for receiving multicast data in a wireless communication system supportive of M2M (machine to machine) communication, comprising:

an RF (radio frequency) unit configured to transceive a radio signal; and

a processor receiving a paging message including an information on a timing point of ending a transmission of the multicast data from a base station in a paging listening interval, the processor receiving the multicast data from the base station, the processor entering an unavailable interval if the timing point of ending the transmission of the multicast data comes.

9. The apparatus of claim 8, wherein the paging message includes a multicast transmission end time (MTET) field and wherein the information on the timing point of ending the transmission of the multicast data comprises a frame number for ending the transmission of the multicast data indicated by the MTET field.

10. The apparatus of claim 8, wherein the paging message includes a duration field and wherein the information on the timing point of ending the transmission of the multicast data comprises an interval ranging from a timing point of receiving the paging message indicated by the duration field to the timing point of ending the transmission of the multicast data.

11. The apparatus of claim 10, wherein if the paging message includes a multicast transmission start time (MTST) field, the duration filed indicates an interval ranging from a timing point indicated by the MTST field to the timing point of ending the transmission of the multicast data.

12. The apparatus of claim 8, wherein the paging message includes a timer field and wherein the information on the timing point of ending the transmission of the multicast data comprises an interval ranging from a timing point of a last reception of the multicast data indicated by the timer field to the timing point of ending the transmission of the multicast data.

13. The apparatus of claim 8, wherein the paging message further includes a multicast receiving mode field and wherein if the multicast receiving mode field is set to a predetermined value, the paging message includes the information on the multicast transmission end time.

14. The apparatus of claim 8, wherein the paging message comprises an AAI-PAG-ADV message.