Apparatus and method for reducing power consumption in portable terminal

• US 10,129,829 B2
• Filed: 03/19/2018
• Issued: 11/13/2018
• Est. Priority Date: 12/21/2009
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Jung, Bu-Seop, Choi, Jong-Mu, Lee, Jung-Hun, You, Jae-Ki
• Primary Examiner(s): Butt, Walli
• Application Number:
  US15/925,167
• Publication Number:
  US 20180213480A1
• Time in Patent Office: 239 Days
• CPC Class Codes: H04L 27/0006 Assessment of spectral gaps suitable for allocating digitally modulated signals, e.g. for carrier allocation in cognitive radio for spectrum sharing between different networks H04W16/14
• 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: H04W 52/028 switching on or off only a part of the equipment circuit blocks
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

An apparatus and a method for reducing power consumption in a portable terminal that transmits digital broadcast data through an ad hoc network are provided. If a terminal receiving digital broadcast transmits the received digital broadcast to a neighboring terminal, a control unit enters a sleep mode after buffering received data for a predefined time.

Claims

1. An apparatus comprising:

a memory;

an antenna;

a communication unit operatively coupled with the antenna and adapted to transmit a signal to an external electronic device using the antenna via a wireless local network; and

a control unit operatively coupled with the communication unit, the control unit adapted to;

operate in a first state during a first portion of a specified period of time, the operating in the first state including transmitting, using the communication unit, at least one portion of multimedia data stored in the memory to the external electronic device via the wireless local network continuously during the first portion of the specified period of time, and

operate in a second state during a second portion of the specified period of time immediately after an elapse of the first portion, the operating in the second state including transmitting, using the communication unit, time information indicative of a length of the specified period of time to the external electronic device via the wireless local network during at least one subportion of the second portion of the specified period of time and refraining from transmitting a portion of the multimedia data to the external electronic device via the wireless local network during the second portion of the specified period of time.

2. The apparatus of claim 1, wherein the control unit is further adapted to:

transmit the at least one portion of the multimedia data from the apparatus directly to the external electronic device.

3. The apparatus of claim 1, wherein the control unit is further adapted to:

as at least part of the operating in the first state, operate in a wake-up state during the first portion.

4. The apparatus of claim 3, wherein the control unit is further adapted to:

as at least part of the operating in the second state, operate in a sleep state during another subportion of the second portion immediately after the elapse of the first portion and before the at least one subportion.

5. The apparatus of claim 4, wherein the control unit is further adapted to:

as at least part of the operating in the second state, operate in the wake-up state during a third subportion of the second portion immediately after the elapse of the other subportion and before the at least one subportion without transmitting a portion of the multimedia data or a portion of the time information.

6. The apparatus of claim 5, wherein the control unit is further adapted to:

as at least part of the operating in the second state, operate in the sleep state during a fourth subportion of the second portion immediately after the elapse of the third subportion and immediately before the at least one subportion.

7. The apparatus of claim 1, wherein the control unit is further adapted to:

as at least part of the operating in the second state, operate in the sleep state during another subportion of the second portion immediately after the elapse of the at least one subportion and until an end of the second portion.

8. The apparatus of claim 1, wherein the control unit is further adapted to:

as at least part of the operating in the second state, buffer another portion of the multimedia data during the second portion of the specified period of time.

9. The apparatus of claim 8, wherein the control unit is further adapted to:

operate in the first state during a first portion of another iteration of the specified period of time immediately after the elapse of the second portion, the operating in the first state during the first portion of the other iteration including transmitting the other portion of the multimedia data buffered during the second portion to the external electronic device via the wireless local network during the first portion of the other iteration of the specified period of time.

10. The apparatus of claim 1, wherein the control unit is further adapted to:

determine the specified period of time based at least in part on a characteristic of the multimedia data.

11. The apparatus of claim 1, wherein the control unit is further adapted to:

transmit the time information to the external electronic device as at least part of a beacon.

12. An apparatus comprising:

a memory;

an antenna;

a communication unit operatively coupled with the antenna and adapted to transmit a signal to an external electronic device using the antenna via a wireless local network; and

a control unit operatively coupled with the communication unit, the control unit adapted to;

operate in a first state during a first portion of a specified period of time period, the operating in the first state including transmitting, using the communication unit, at least one portion of data stored in the memory to the external electronic device via the wireless local network continuously during the first portion of the specified period of time, and

operate in a second state during a second portion of the specified period of time immediately after an elapse of the first portion, the operating in the second state including;

refraining from transmitting a portion of the data during the second portion of the specified period of time,

transmitting, using the communication unit, a beacon including time information to be used for communication between the apparatus and the external electronic device to the external electronic device via the wireless local network during a first subportion of the second portion of the specified period of time, and

operating in a sleep state during a second subportion of the second portion immediately after the elapse of the first subportion.

13. The apparatus of claim 12, wherein the control unit is further adapted to:

determine the specified period of time based at least in part on a characteristic of the data.

14. The apparatus of claim 12, wherein the control unit is further adapted to:

as at least part of the operating in the first state, operate in a wake-up state during the first portion.

15. The apparatus of claim 12, wherein the control unit is further adapted to:

buffer another portion of the data during the second portion of the specified period of time.

16. The apparatus of claim 15, wherein the control unit is further adapted to:

operate in the first state during a first portion of another iteration of the specified period of time immediately after the elapse of the second portion, the operating in the first state during the first portion of the other iteration including transmitting the other portion of the data buffered during the second portion to the external electronic device via the wireless local network during the first portion of the other iteration of the specified period of time.

17. An apparatus comprising:

a memory;

an antenna;

a communication unit operatively coupled with the antenna and adapted to transmit a signal to an external electronic device using the antenna via a wireless local network; and

a control unit operatively coupled with the communication unit, the control unit adapted to;

transmit, using the communication unit, at least one portion of data stored in the memory to the external electronic device via the wireless local network during a portion of a specified period of time,

refrain from transmitting a portion of the data or a beacon to the external electronic device via the wireless local network during a first subportion of a remaining portion of the specified period of time immediately after an elapse of the portion of the specified period of time, and

transmit, using the communication unit, at least one beacon to the external electronic device via the wireless local network during a second subportion of the remaining portion of the specified period of time after the elapse of the first subportion,

wherein the control unit is further adapted to refrain from transmitting at least one portion of the data to the external electronic device via the wireless local network during the second subportion.

18. The apparatus of claim 17, wherein the control unit is further adapted to:

determine the specified period of time based at least in part on a characteristic of the data.

19. The apparatus of claim 17, wherein the control unit is further adapted to:

buffer another portion of the data during the remaining portion of the specified period of time.

20. The apparatus of claim 17, wherein the control unit is further adapted to:

operate in a sleep state during a third subportion of the remaining portion of the specified period of time immediately after the elapse of the second subportion and until an end of the remaining portion.