Apparatus and method for power distribution by frequency allocation in multi-frequency allocation broadband wireless communication system

• US 8,244,292 B2
• Filed: 02/22/2008
• Issued: 08/14/2012
• Est. Priority Date: 02/23/2007
• Status: Active Grant

• Current Assignee: Ueran Technology LLC
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Roh, Kwan-Hee, Moon, June, Kim, Yong-Seok, Yoon, Soon-Young, Park, Sung-Woo
• Primary Examiner(s): Brandt, Christopher M
• Application Number:
  US12/035,753
• Publication Number:
  US 20080205369A1
• Time in Patent Office: 1,635 Days
• Field of Search: 455/522, 455/127.1, 455/450, 455/451, 455/452.1, 455/452.2, 455/453, 370/343, 370/318
• US Class Current: 455/522
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/0037 Inter-user or inter-terminal allocation
• CPC Class Codes: H04L 5/0058 Allocation criteria
• CPC Class Codes: H04L 5/023 Multiplexing of multicarrier modulation signals multicarrier modulation H04L27/2601
• CPC Class Codes: H04W 24/00 Supervisory, monitoring or testing arrangements
• CPC Class Codes: H04W 52/343 taking into account loading or congestion level
• CPC Class Codes: H04W 52/346 distributing total power among users or channels
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA

Abstract

An apparatus and method for power distribution by Frequency Allocation (FA) in a multi-band broadband wireless communication system are provided. The method includes detecting at least one of a loading value and a performance efficiency value by band, calculating a power distribution value by band using the detected value and calculating a power value by band using the calculated band power distribution value. The method and apparatus provide a scheme that can vary a power distribution of each band according to need and cope with subscriber capacity more flexibly when a plurality of diverse systems coexist.

Claims

1. A method for power distribution by Frequency Allocation (FA) in a multi-band broadband wireless communication system, the method comprising:

detecting, by a controller, at least one of a loading value and a performance efficiency value for each band in the communication system;

calculating a power distribution value for each band using the corresponding detected value; and

calculating a power value for each band using the corresponding calculated power distribution value,

wherein the loading value comprises a ratio of radio resources used for overhead and user traffic transmission of a given band to total radio resources, and the performance efficiency value comprises a relative rate to a spectral efficiency value.

2. The method of claim 1, wherein the calculating of the power distribution value for each band comprises calculating a product of the corresponding loading value and the performance efficiency value for each band.

3. The method of claim 1, wherein the calculating of the power distribution value for each band comprises dividing the calculated power distribution value for each band by a total power distribution value of the multi-bands.

4. The method of claim 1, wherein the calculating of the power value for each band comprises calculating a product of a power distribution value of a corresponding band and a power amplifier capacity.

5. The method of claim 1, further comprising:

applying the power value of a corresponding band to transmission data of the band and amplifying the transmission data by the power value; and

transmitting the amplified data to a receiver.

6. The method of claim 1, wherein the broadband wireless communication system supports a system comprising at least two different specifications.

7. An apparatus for power distribution by Frequency Allocation (FA) in a multi-band broadband wireless communication system, the apparatus comprising:

a controller for detecting at least one of a loading value and a performance efficiency value for each band; and

a power value calculator for calculating a power distribution value for each band using the corresponding detected value and for calculating a power value for each band using the corresponding calculated power distribution value,

wherein the loading value comprises a ratio of radio resources used for overhead and user traffic transmission of a given band to total radio resources, and the performance efficiency value comprises a relative rate to a spectral efficiency value.

8. The apparatus of claim 7, wherein the power distribution value for each band is calculated by a product of the corresponding loading value and the performance efficiency value.

9. The apparatus of claim 7, wherein the power distribution value for each band used for calculating the corresponding power value for each band is a value obtained by dividing the calculated power distribution value for each band by a total power distribution value of the multi-bands.

10. The apparatus of claim 7, wherein the power value for each band is calculated by a product of a power distribution value of a corresponding band and a power amplifier capacity.

11. The apparatus of claim 7, further comprising a Radio Frequency (RF) transmitter for applying the power value of a corresponding band to transmission data of the band and amplifying the transmission data by the power value and for transmitting the amplified data to a receiver.

12. The apparatus of claim 7, wherein the broadband wireless communication system supports a system comprising at least two different specifications.