METHODS FOR INTERFERENCE MEASUREMENT AND PREDICTION

• US 20080165741A1
• Filed: 09/26/2007
• Published: 07/10/2008
• Est. Priority Date: 01/05/2007
• Status: Abandoned Application

• Current Assignee: Acer, Inc.
• Original Assignee: Industrial Technology Research Institute
• Inventors: FU, I-Kang, SHEEN, Wern-Ho
• Application Number:
  US11/862,010
• Publication Number:
  US 20080165741A1
• Time in Patent Office: Days
• US Class Current: 370/332
• CPC Class Codes: H04B 17/345 Interference values signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR] H04B17/336

Abstract

A method of providing wireless communication, the method including providing a wireless communication network having a plurality of stations, the plurality of stations having a plurality of communication links, each communication link being between two of the plurality of stations, transmitting a signal from at least one of the stations to other stations, measuring signal quality associated with at least one of the communication links based on the signal to generate a measuring result, and determining an interference level associated with at least one of the communication links based on the measuring result.

Claims

1. A method of providing wireless communication, the method comprising:

providing a wireless communication network having a plurality of stations, the plurality of stations having a plurality of communication links, each communication link being between two of the plurality of stations;

transmitting a signal from at least one of the stations to other stations;

measuring signal quality associated with at least one of the communication links based on the signal to generate a measuring result; and

determining an interference level associated with at least one of the communication links based on the measuring result.

2. The method of claim 1, further comprising reporting measured results to a coordinator of the wireless communication network, the coordinator being at least one of base stations and relay stations in the wireless communication network.

3. The method of claim 1, wherein the determining an interference level associated with at least one of the communication links based on the measuring result comprises determining a signal-to-interference-plus-noise ratio (SINR) associated with at least one of the communication links based on the measuring result.

4. The method of claim 3, wherein the determining a signal-to-interference-plus-noise ratio associated with at least one of the communication links based on the measuring result comprises determining a ratio of a nominator and a denominator, wherein

the nominator includes the received signal strength at a receiving station from at least one other station whose transmission target is the receiving station;

and

the denominator includes the interference level associated with the at least one of the communication links for the receiving station.

5. The method of claim 1, further comprising arranging a network topology or a network channel reuse scenario based on the measuring result.

6. The method of claim 1, wherein the signal is a reference signal.

7. The method of claim 1, wherein the signal quality includes received signal strength (RSS).

8. The method of claim 2, wherein the coordinator of the wireless communication network manages a measurement procedure for at least a subset of the stations in the wireless communication network by designating the at least one of the stations to transmit the signal to other stations and designating the other stations to measuring the signal quality associated with at least one of the communication links based on the signal to generate the measuring result.

9. The method of claim 1, wherein the wireless communication network is a radio relay network.

10. The method of claim 8, wherein the coordinator requests at least one of the stations to transmit different signals for measuring received signal strengths by at least one of the other stations.

11. The method of claim 1, wherein the measuring result includes received signal strengths measured by at least one of the other stations and corresponding station identifications (IDs).

12. The method of claim 1, wherein a prediction of the interference level for a receiving station includes at least one of thermal noise, background interference, and received signal strength at the station from the other stations whose transmission target is not the station and are using a same communication channel as the station.

13. A method of predicting transmission quality of wireless communication links, the method comprising:

providing a wireless communication network having a plurality of stations, the plurality of stations providing the communication links among the stations, each communication link being between two of the plurality of stations;

transmitting a reference signal from at least one of the stations to other stations;

measuring signal quality associated with at least one of the communication links based on the reference signal to generate measuring results;

and

determining an interference level associated with at least one of the communication links based on the measuring results.

14. The method of claim 13, further comprising:

identifying an identification of the at least one of the stations transmitting the reference signal.

15. A method of configuring reuse of radio communication links, the method comprising:

providing a wireless communication network having a plurality of stations, the plurality of stations providing the communication links among the stations, each communication link being between two of the plurality of stations;

transmitting one signal from at least one of the stations to other stations;

measuring signal quality associated with at least one of the communication links based on the signal to generate measuring results; and

configuring at least one network channel reuse scenario based on the measuring results.

16. The method of claim 15, further comprising configuring a network topology and radio parameters based on the measuring results.

17. The method of claim 15, further comprising determining an interference level associated with at least one of the communication links based on the measuring results.

18. A method of predicting a signal-to-interference-plus-noise ratio associated with at least one of a plurality of communication links, the method comprising:

providing a wireless communication network having a plurality of stations, the plurality of stations providing the communication links among them, each communication link being between two of the plurality of stations;

transmitting one signal from one or more of the stations to other stations;

measuring signal quality associated with at least one of the communication links based on the signal to generate measuring results; and

determining a signal-to-interference-plus-noise ratio associated with at least one of the communication links based on the measuring results.

19. The method of claim 18, further comprising determining an interference level associated with at least one of the communication links based on the measuring results.

20. The method of claim 18, wherein determining the signal-to-interference-and-noise ratio associated with at least one of the communication links is based on a ratio of a nominator and denominator, wherein

the nominator includes the received signal strength at a receiving station from at least one other station whose transmission target is the station;

and

the denominator includes an interference level associated with the at least one of the communication links for the receiving station.

21. The method of claim 19, wherein a prediction of the interference level for a receiving station includes at least one of thermal noise, background interference, and received signal strength at the station from other stations whose transmission target is not the station and are using a same communication channel as the station.