RECEPTION NODE AND TRANSMISSION NODE FOR SAVING ENERGY OF RECEPTION NODE, AND COMMUNICATION METHOD THEREOF

• US 20150043402A1
• Filed: 02/10/2014
• Published: 02/12/2015
• Est. Priority Date: 08/12/2013
• Status: Active Grant

• Current Assignee: Industry Academic Cooperation Foundation, Samsung Electronics Co. Ltd.
• Original Assignee: Industry Academic Cooperation Foundation, Samsung Electronics Co. Ltd.
• Inventors: PARK, Chang Soon, KIM, Young Soo, HWANG, Hyo Sun, LEE, Jang Won, KIM, Sung Yeon, JUNG, Hyun Sik
• Granted Patent: US 9,629,085 B2
• Time in Patent Office: Days
• US Class Current: 370/311
• CPC Class Codes: H04W 52/0216 using a pre-established activity schedule, e.g. traffic indication frame
• CPC Class Codes: H04W 52/0229 where the received signal is a wanted signal
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A communication method of a transmission node includes generating information of a transmission unavailable time period of the transmission node in a reception available time period of a reception node, and transmitting, to the reception node, the information of the transmission unavailable time period. The reception node operates in a sleep state based on the information of the transmission unavailable time period.

Claims

1. A communication method of a transmission node, comprising:

generating information of a transmission unavailable time period of the transmission node in a reception available time period of a reception node; and

transmitting, to the reception node, the information of the transmission unavailable time period,

wherein the reception node operates in a sleep state based on the information of the transmission unavailable time period.

2. The method of claim 1, further comprising:

receiving, from the reception node, scheduling information comprising the reception available time period.

3. The method of claim 1, wherein the transmitting comprises transmitting, to the reception node, the information of the transmission unavailable time period, along with data.

4. The method of claim 1, further comprising:

determining whether the transmission unavailable time period is present in the reception available time period.

5. The method of claim 4, wherein the generating comprises generating the information of the transmission unavailable time period based on a result of the determining.

6. The method of claim 1, wherein the generating comprises generating the information of the transmission unavailable time period in a bitmap format.

7. The method of claim 1, wherein the generating comprises generating the information of the transmission unavailable time period in a form of a number of unit times in which transmission is unavailable until a subsequent transmission.

8. The method of claim 1, wherein the generating comprises generating the information of the transmission unavailable time period in a form of an indicator.

9. The method of claim 8, wherein the indicator indicates that a corresponding data transmission is a final transmission in the reception available time period.

10. The method of claim 1, wherein the transmission node and the reception node operate in a non-beacon mode in which a beacon is not used.

11. A non-transitory computer-readable storage medium storing a program comprising instructions to cause a computer to perform the method of claim 1.

12. A communication method of a reception node, comprising:

receiving, from a transmission node, information of a transmission unavailable time period of the transmission node in a reception available time period of the reception node; and

operating in a sleep state during the transmission unavailable time period.

13. The method of claim 12, further comprising:

transmitting, to the transmission node, scheduling information comprising the reception available time period.

14. The method of claim 13, wherein the transmitting comprises periodically transmitting the scheduling information to the transmission node.

15. The method of claim 12, wherein the information of the transmission unavailable time period is in at least one of a bitmap format, a form of a number of unit times in which transmission is unavailable until a subsequent transmission, and a form of an indicator.

16. A non-transitory computer-readable storage medium storing a program comprising instructions to cause a computer to perform the method of claim 12.

17. A transmission node, comprising:

a generator configured to generate information of a transmission unavailable time period of the transmission node in a reception available time period of a reception node; and

a transmitter configured to transmit, to the reception node, the information of the transmission unavailable time period,

wherein the reception node operates in a sleep state based on the information of the transmission unavailable time period.

18. The transmission node of claim 17, further comprising:

a receiver configured to receive, from the reception node, scheduling information comprising the reception available time period.

19. The transmission node of claim 17, wherein the transmitter is configured to transmit, to the reception node, the information of the transmission unavailable time period, along with data.

20. The transmission node of claim 17, wherein the generator is configured to generate the information of the transmission unavailable time period in at least one of a bitmap format, a form of a number of unit times in which transmission is unavailable until a subsequent transmission, and a form of an indicator.

21. A reception node, comprising:

a transmitter configured to transmit, to a transmission node, scheduling information comprising a reception available time period of the reception node; and

a state manager configured to maintain the reception node in a sleep state during a transmission unavailable time period of the transmission node in the reception available time period.

22. The reception node of claim 21, further comprising:

a receiver configured to receive, from the transmission node, information of the transmission unavailable time period.

23. The reception node of claim 21, wherein the reception node is unavailable for reception in the sleep state.