WIRELESS BROADCAST COMMUNICATION SYSTEM AND BROADCAST SERVICE METHOD THEREOF

• US 20100315986A1
• Filed: 06/10/2010
• Published: 12/16/2010
• Est. Priority Date: 06/10/2009
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Lee, Il Ho, Lim, Yeon Ju, Jeong, Hong Sil
• Application Number:
  US12/813,176
• Publication Number:
  US 20100315986A1
• Time in Patent Office: Days
• US Class Current: 370/312
• CPC Class Codes: H04H 20/426 Receiver side
• CPC Class Codes: H04L 47/10 Flow control; Congestion control
• CPC Class Codes: H04L 47/15 in relation to multipoint traffic arrangements for broadcast or multicast in data networks H04L12/18
• CPC Class Codes: H04L 47/28 in relation to timing considerations
• CPC Class Codes: H04W 52/0216 using a pre-established activity schedule, e.g. traffic indication frame
• CPC Class Codes: H04W 8/04 Registration at HLR or HSS [Home Subscriber Server]
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A wireless broadcast communication system includes a transmitter that provides broadcast services via a plurality of frames based on inband signaling, and a receiver that switches a sleep mode to an active mode and receives the target broadcast packets, according to the timing information. The receiver is repeatedly switched to the sleep mode according to the timing information. The system uses the scheduling information to detect broadcast packets via a plurality of frames, thereby enhancing the use efficiency of the scheduling information. Although the receiver fails to receive scheduling information via a particular frame, it can detect a position of a broadcast packet using the stored scheduling information.

Claims

1. A broadcast service method of a transmitter in a wireless communication system, the method comprising:

inserting scheduling information, as inband signaling, into a serving broadcast packet, and transmitting the serving broadcast packet via one of a plurality of frames, wherein the scheduling information includes timing information regarding next target broadcast packets; and

transmitting the target broadcast packets according to the timing information.

2. The method of claim 1, wherein the timing information comprises:

an interval between a serving frame transmitting the serving broadcast packet, and a target frame transmitting one of the target broadcast packets, or between the target frame and another target frame transmitting another one of the target broadcast packets; and

a start time point of the target broadcast packet in the target frame.

3. The method of claim 1, wherein the timing information comprises:

a start time point difference between the serving broadcast packet and the target broadcast packet or between the target broadcast packets.

4. The method of claim 2, wherein the timing information further comprises a size of the target broadcast packet.

5. The method of claim 3, wherein the timing information further comprises a size of the target broadcast packet.

6. A broadcast service method of a receiver in a wireless communication system, the method comprising:

receiving scheduling information via a serving broadcast packet from one of a plurality of frames, wherein the scheduling information, as inband signaling, is inserted into the serving broadcast packet, and includes timing information regarding next target broadcast packets; and

receiving the target broadcast packets according to the timing information.

7. The method of claim 6, wherein:

the timing information includes a start time point of the target broadcast packet; and

receiving the target broadcast packets includes switching a sleep mode to an active mode in order to receive the target broadcast packets when a start time point of the target broadcast packet occurs.

8. The method of claim 7, wherein:

the timing information further includes a size of the target broadcast packet, and receiving the target broadcast packets further includes

switching the active mode to the sleep mode when a time difference corresponding to the size of the target broadcast packet has elapsed.

9. The method of claim 7, wherein receiving the target broadcast packets further comprises:

switching the active mode to the sleep mode when a boundary of a target frame transmitting the target broadcast packet has been reached.

10. The method of claim 6, further comprising:

analyzing the scheduling information and detecting the timing information; and

adding the proximity order and the serving broadcast packet by the target broadcast packets to the timing information and configuring a time table in order to refer to the reception of the target broadcast packets.

11. A transmitter of a wireless communication system, comprising:

a broadcast packet configuring unit for inserting scheduling information, as inband signaling, into a serving broadcast packet, wherein the scheduling information includes timing information regarding next target broadcast packets; and

a frame transmitting unit for transmitting the serving broadcast packet via one of a plurality of frames, and transmitting target broadcast packets according to the timing information.

12. The transmitter of claim 11, wherein the timing information comprises:

an interval between a serving frame transmitting the serving broadcast packet, and a target frame transmitting one of the target broadcast packets, or between the target frame and another target frame transmitting another one of the target broadcast packets; and

a start time point of the target broadcast packet in the target frame.

13. The transmitter of claim 11, wherein the timing information comprises:

a start time point difference between the serving broadcast packet and the target broadcast packet or between the target broadcast packets.

14. The transmitter of claim 12, wherein the timing information further comprises a size of the target broadcast packet.

15. The transmitter of claim 13, wherein the timing information further comprises a size of the target broadcast packet.

16. A receiver in a wireless communication system, comprising:

a frame receiving unit for receiving a serving broadcast packet via one of a plurality of frames, and next target broadcast packets;

a scheduling information analyzing unit for analyzing scheduling information including timing information of the target broadcast packets when the serving broadcast packet is received, wherein the scheduling information, as inband signaling, is inserted into the serving broadcast packet; and

a frame selecting unit for performing a control operation to receive the target broadcast packets according to the timing information.

17. The receiver of claim 16, wherein:

the timing information comprises a start time point of the target broadcast packet; and

the frame selecting unit switches a sleep mode to an active mode in order to receive the target broadcast packets when a start time point of the target broadcast packet is reached.

18. The receiver of claim 17, wherein:

the timing information further comprises a size of the target broadcast packet; and

the frame selecting unit switches the active mode to the sleep mode when a time difference corresponding to the size of the target broadcast packet has elapsed.

19. The receiver of claim 17, wherein the frame selecting unit switches the active mode to the sleep mode when a boundary of a target frame transmitting the target broadcast packet is reached.

20. The receiver of claim 16, further comprising:

a time table managing unit for adding the proximity order and the serving broadcast packet by the target broadcast packets to the timing information and configuring a time table in order to refer to the reception of the target broadcast packets.