Load aware power controlling

• US 8,737,932 B2
• Filed: 01/07/2009
• Issued: 05/27/2014
• Est. Priority Date: 01/07/2009
• Status: Active Grant

• Current Assignee: Nokia Solutions and Networks US LLC (Nokia Corporation)
• Original Assignee: Nokia Solutions and Networks US LLC (Nokia Corporation)
• Inventors: Wang, Chun Ye, Wang, Xiao Yi
• Primary Examiner(s): PHU, SANH D
• Application Number:
  US13/143,473
• Publication Number:
  US 20110275331A1
• Time in Patent Office: 1,966 Days
• Field of Search: 455/73, 455/422.1, 455/114.2, 455/127.1, 455/127.2
• US Class Current: 455/73
• CPC Class Codes: H04W 52/146 Uplink power control
• CPC Class Codes: H04W 52/24 using SIR [Signal to Interference Ratio] or other wireless path parameters
• CPC Class Codes: H04W 52/242 taking into account path loss
• CPC Class Codes: H04W 52/243 taking into account interferences
• CPC Class Codes: H04W 52/343 taking into account loading or congestion level

Abstract

A User Equipment Apparatus is described, which include a Load Factor Determining Device and a Calculating Device. The Load Factor Determining Device is adapted for determining at least one load factor value of a neighbor sector. The Calculating Device is adapted for calculating a transmit power of the User Equipment Apparatus such that the at least one load factor value of a sector is considered.

Claims

1. An apparatus comprising

at least one processor;

and at least one memory including computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus to perform at least the following;

to determine at least one load factor value of a neighbour sector; and

to calculate a transmit power of the apparatus such that the at least one load factor value of the neighbour sector is considered, where calculating the transmit power comprises determining a power density based on a target noise rise level, noise power and a weighted gain, and

where the weighted gain is based at least in part on the at least one load factor value of the neighbour sector.

2. The apparatus of claim 1, wherein the transmit power is an uplink transmit power.

3. The apparatus of claim 1, wherein, when determining at least one load factor value, the at least one memory and the computer program code are further configured with the at least one processor to cause the apparatus to receive a load factor value.

4. The apparatus of claim 1, wherein, when calculating the transmit power, the at least one memory and the computer program code are further configured with the at least one processor to cause the apparatus to weight a path gain to the neighbour sector with the corresponding at least one load factor value.

5. The apparatus of claim 1, wherein the at least one load factor value corresponds to an average load of the neighbour sector.

6. The apparatus of claim 1, wherein the at least one load factor value corresponds to scheduling information of at least one of a resource block, an orthogonal frequency division multiplex resource block and a sub-carrier.

7. The apparatus of claim 1, wherein the apparatus is at least one apparatus of:

a global system for mobile communication user equipment,

a universal mobile telecommunications system user equipment,

an long-term evolution/service architecture evolution user equipment,

a mobile terminal,

an IEEE 802.16m advanced mobile station and

a mobile station.

11. The method of claim 1, where a load factor value of a sector comprises a number of devices being served in the sector.

8. A method comprising:

determining a transmit power for a load awareness power control of a user equipment apparatus, the method comprising;

determining, by the user equipment apparatus, at least one load factor value of a neighbour sector;

calculating, by the user equipment apparatus, a transmit power of the user equipment apparatus such that the at least one load factor value of the neighbour sector is considered, where a load factor value of a sector comprises a number of devices being served in the sector.

9. The method of claim 8, further comprising:

determining a weighted gain, g, such that;

10. The method of claim 8, where the neighbour sector is a co-site sector of a cell serving the User Equipment Apparatus.

12. The method of claim 8, where a load factor value of a sector comprises a number of used resources in the sector in relation to a number of available resources in the sector.

13. The method of claim 8, further comprising:

obtaining received signal strengths of a plurality of sectors, where the plurality of sectors comprises the neighbour sector;

sorting the received signal strengths; and

determining a second strongest path gain based on the sorted received signal strengths.