Mobile network control apparatus and energy saving method

• US 9,155,038 B2
• Filed: 08/24/2011
• Issued: 10/06/2015
• Est. Priority Date: 12/21/2010
• Status: Expired due to Fees

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Choi, Jin Hyeock
• Primary Examiner(s): Kim, Wesley
• Assistant Examiner(s): TALUKDER, MD K
• Application Number:
  US13/216,468
• Publication Number:
  US 20120157002A1
• Time in Patent Office: 1,504 Days
• Field of Search: 455/67.11, 455/522, 455/524, 455/444, 455/574, 455/572, 455/115.1
• US Class Current: 1/1
• CPC Class Codes: H04W 24/00 Supervisory, monitoring or testing arrangements
• CPC Class Codes: H04W 52/0206 in access points, e.g. base stations access point devices per se H04W88/08
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

Provided are a mobile network control apparatus and energy saving method. The mobile network control apparatus for may calculate a first amount of total consumed power consumed by m base stations to provide a first cell as a coverage range, and a second amount of total consumed power consumed by n base stations to provide a second cell including the first cell as a coverage range. The mobile network control apparatus may save energy by initiating an operation of the n base stations on a high power mode, and by suspending an operation of a remaining base station excluding the n base stations if the first amount of total consumed power is greater than the second amount of total consumed power.

Claims

1. A mobile network control apparatus for energy efficiency, the apparatus comprising:

a calculating unit configured to calculate a first amount of total consumed power consumed by m base stations that have a first cell as a coverage area, and configured to calculate a second amount of total consumed power consumed by n base stations that have a second cell including the first cell as a coverage area, where n and m are natural numbers; and

a processor configured to initiate an operation of the n base stations on a high power mode, and to temporarily suspend an operation of remaining base stations excluding the n base stations, in response to the first amount of total consumed power being greater than the second amount of total consumed power,

wherein;

the calculating unit is further configured to calculate a first result value by multiplying an amount of consumed power that is used for data transmission per unit time in the remaining base stations of which operation is suspended, and an average traffic demand per unit time in terminals located in the first cell, and adding the multiplied result to a base power amount used for initiating an operation of the remaining base stations, and is further configured to calculate a second result value by multiplying an amount of consumed power that is used for data transmission per unit time in the n base stations of which operation is initiated, and an average traffic demand per unit time in the terminals located in the first cell, in response to a number of the terminals located in the first cell being greater than a predetermined number; and

the processor initiates an operation of the remaining base stations on a low power mode, in response to the first result value being less than the second result value.

2. The apparatus of claim 1, further comprising a controller configured to determine one or more of the m base stations as the n base stations,

wherein the calculating unit calculates the second amount of total consumed power by adding the amounts of consumed power that are used when the determined n base stations operate on the high power mode.

3. The apparatus of claim 2, wherein the calculating unit calculates the second amount of total consumed power based on a consumed power amount that is used for data transmission per unit time in the n base stations under the high power mode, and based on an average traffic demand per unit time in terminals that are located in the second cell.

4. The apparatus of claim 1, wherein the calculating unit calculates the first amount of total consumed power by adding the amounts of consumed power that are used when the m base stations operate on a low power mode.

5. The apparatus of claim 4, wherein the calculating unit calculates the first amount of total consumed power based on an amount of consumed power that is used for data transmission per unit time in the m base stations under the low power mode, and based on an average traffic demand per unit time in terminals that are located in the first cell.

6. The apparatus of claim 1, further comprising a location manager configured to manage locations of the m base stations and the n base stations, and configured to manage locations of terminals that are received from the m base stations or the n bases stations and that are associated with the first cell or the second cell.

7. The apparatus of claim 1, further comprising a controller configured to determine the n base stations based on the locations of the m base stations, and based on locations of terminals within the coverage area of the m base stations.

18. The apparatus of claim 1, wherein the calculating unit:

calculates the first amount of total consumed power based on an amount of power that is consumed by the m base stations to transmit data to terminals in the first cell under low power mode and based on an average amount of traffic demand within the first cell, and

calculates the second amount of total consumed power based on an amount of power that is consumed by the n base stations to transmit data to terminals in the second cell under high power mode and based on an average amount of traffic demand within the second cell.

19. The apparatus of claim 1, wherein the calculating unit recalculates a total amount of consumed power with respect to a base station, in response to the suspended operation of the remaining base stations being initiated, and provides the recalculated amount of total consumed power to the processor.

8. A mobile network control method for energy efficiency, the method comprising:

calculating a first amount of total consumed power consumed by m base stations that have a first cell as a coverage area;

calculating a second amount of total consumed power consumed by n base stations that have a second cell including the first cell as a coverage area, where n and m are natural numbers; and

initiating an operation of the n base stations on a high power mode, and temporarily suspending an operation of remaining base stations excluding the n base stations, in response to the first amount of total consumed power being greater than the second amount of total consumed power,

in response to a number of terminals located in the first cell being greater than a predetermined number;

calculating a first result value by multiplying an amount of consumed power that is used for data transmission per unit time in the remaining base stations of which operation is suspended, and an average traffic demand per unit time in the terminals located in the first cell, and adding the multiplied result to a base power amount used for initiating an operation of the remaining base stations;

calculating a second result value by multiplying an amount of consumed power that is used for data transmission per unit time in the n base stations of which operation is initiated, and an average traffic demand per unit time in the terminals located in the first cell; and

initiating an operation of the remaining base stations on a low power mode, in response to the first result value being less than the second result value.

9. The method of claim 8, wherein the calculating of the second amount of total consumed power is based on an amount of consumed power that is used for data transmission per unit time in the n base stations under the high power mode, and based on an average traffic demand per unit time in terminals that are located in the second cell.

10. The method of claim 8, wherein the calculating of the first amount of total consumed power is based on an amount of consumed power that is used for data transmission per unit time in the m base stations under the low power mode, and based on an average traffic demand per unit time in terminals that are located in the first cell.

11. The method of claim 8, further comprising:

managing locations of the m base stations and the n base stations; and

managing locations of terminals that are received from the m base stations or the n bases stations that are associated with the first cell or the second cell.

12. The method of claim 8, further comprising determining the n base stations based on the locations of the m base stations, and based on locations of terminals within the coverage area of the m base stations.

13. A mobile apparatus for power saving in a wireless communication environment, the apparatus comprising:

a calculating unit configured to calculate a first amount of power consumed by m base stations that operate in a lower power mode to provide a service area, and configured to calculate a second amount of power consumed by n base stations that operate in a higher power mode to provide the service area, wherein n and m are natural numbers and n is less than m; and

a processor configured to activate the n base stations and to temporarily suspend the operation of the m base stations, in response to the second amount of power consumed being less than the first amount of power being consumed,

wherein;

the calculating unit is further configured to calculate a first result value by multiplying an amount of consumed power that is used for data transmission per unit time in the remaining base stations of which operation is suspended, and an average traffic demand per unit time in terminals located in the first cell, and adding the multiplied result to a base power amount used for initiating an operation of the remaining base stations, and is further configured to calculate a second result value by multiplying an amount of consumed power that is used for data transmission per unit time in the it base stations of which operation is initiated, and an average traffic demand per unit time in the terminals located in the first cell, in response to a number of the terminals located in the first cell being greater than a predetermined number; and

the processor initiates an operation of the remaining base stations on a low power mode, in response to the first result value being less than the second result value.

14. The mobile apparatus of claim 13, wherein one or more of the m base stations are also included in the n base stations.

15. The mobile apparatus of claim 13, wherein the calculating unit is further configured to calculate a third amount of power consumed by the n base stations after the m base stations have been suspended, and the calculating unit is configured to calculate a fourth amount of power consumed by the n base stations and one or more of the suspended m base stations operating in the lower power mode.

16. The mobile apparatus of claim 15, wherein if the fourth amount of power is less than the third amount of power, the processor is further configured to activate the one or more suspended base stations to the lower power operating mode.

17. The mobile apparatus of claim 13, further comprising a controller configured to verify the locations of the m base stations and the terminals served by the m base stations, and configured to determine the n base stations based on the locations of the m base stations and the terminals served by the m base stations.