Wireless communication system to control transmit power for a wireless repeater chain

• US 10,085,222 B1
• Filed: 04/26/2017
• Issued: 09/25/2018
• Est. Priority Date: 04/26/2017
• Status: Active Grant

• Current Assignee: T-Mobile Innovations LLC (Deutsche Telekom AG)
• Original Assignee: Sprint Communications Company LP (Deutsche Telekom AG)
• Inventors: Marupaduga, Sreekar
• Primary Examiner(s): Sandiford, Devan
• Application Number:
  US15/497,435
• Time in Patent Office: 517 Days
• CPC Class Codes: H04W 24/08 Testing, supervising or monitoring using real traffic
• CPC Class Codes: H04W 52/243 taking into account interferences
• CPC Class Codes: H04W 52/386 centralized, e.g. when the radio network controller or equivalent takes part in the power control
• CPC Class Codes: H04W 52/46 in multi hop networks, e.g. wireless relay networks
• CPC Class Codes: H04W 84/047 using dedicated repeater stations
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

A wireless communication system to control the transmit power for a wireless repeater chain. The method includes a wireless access point wirelessly exchanging data with User Equipment (UEs) over the wireless repeater chain. The method also includes the wireless access point determining interference levels for wireless access points in neighboring cells, and when the interference levels for at least one of the wireless access points in the neighboring cells exceeds an interference threshold, then the method includes the wireless access point decreasing the transmit power of the wireless repeater chain.

Claims

1. A method of operating a wireless access point to control transmit power for a wireless repeater chain, the method comprising:

the wireless access point wirelessly exchanging data with User Equipment (UEs) over the wireless repeater chain;

the wireless access point determining interference levels for other wireless access points in multiple neighboring cells;

the wireless access point mapping the interference levels for the other wireless access points in the multiple neighboring cells to an aggregated interference location;

the wireless access point selecting individual transmit powers for individual ones of the wireless repeaters based on the aggregated interference location; and

the wireless access point decreasing the transmit power of the individual wireless repeaters in the wireless repeater chain to the selected individual transmit powers.

2. The method of claim 1 wherein decreasing the transmit power for the wireless repeater chain comprises determining a location of individual repeaters of the wireless repeater chain and decreasing the transmit power for the individual repeaters based on their location.

3. The method of claim 1 wherein decreasing the transmit power for the wireless repeater chain comprises decreasing the transmit power for all repeaters in the wireless repeater chain.

4. The method of claim 1 wherein decreasing the transmit power for the wireless repeater chain comprises decreasing the transmit power for a wireless repeater located at the end of the wireless repeater chain.

5. The method of claim 1 wherein decreasing the transmit power for the wireless repeater chain comprises determining a location of individual wireless repeaters of the wireless repeater chain and powering down at least one of the individual wireless repeaters based on their location.

6. The method of claim 1 wherein decreasing the transmit power for the wireless repeater chain comprises turning off frequency bands in individual wireless repeaters in the wireless repeater chain.

7. The method of claim 1 wherein decreasing the transmit power for the wireless repeater chain comprises determining a location of individual wireless repeaters of the wireless repeater chain and turning off frequency bands in individual wireless repeaters in the wireless repeater chain based on their location.

8. The method of claim 1 wherein the wireless access point comprises a Long Term Evolution (LTE) eNodeB.

9. A wireless communication systems to control transmit power over a wireless repeater chain, the wireless communication system comprising:

the wireless repeater chain configured to wirelessly exchange data with User Equipment (UE);

a first wireless access point configured to wirelessly exchange the data with the wireless repeater chain;

the first wireless access point configured to determine interference levels for second wireless access points in multiple neighboring cells; and

the first wireless access point configured to map the interference levels for the second wireless access points in the multiple neighboring cells to an aggregated interference location, select individual transmit powers for individual ones of the wireless repeaters based on the aggregated interference location, and decrease the transmit power of the individual wireless repeaters in the wireless repeater chain to the selected individual transmit powers.

10. The wireless communication system of claim 9 wherein the first wireless access point is configured to determine a location of individual wireless repeaters of the wireless repeater chain and decrease the transmit power for the individual wireless repeaters based on their location.

11. The wireless communication system of claim 9 wherein the first wireless access point is configured to decrease the transmit power for all repeaters in the wireless repeater chain.

12. The wireless communication system of claim 9 wherein the first wireless access point is configured to decrease the transmit power for a wireless repeater located at the end of the wireless repeater chain.

13. The wireless communication system of claim 9 wherein the first wireless access point is configured to determine a location of individual wireless repeaters of the wireless repeater chain and power down at least one of the individual wireless repeaters based on their location.

14. The wireless communication system of claim 9 wherein the first wireless access point is configured to turn off frequency bands in individual wireless repeaters in the wireless repeater chain.

15. The wireless communication system of claim 9 wherein the first wireless access point is configured to determine a location of individual wireless repeaters of the wireless repeater chain and turn off frequency bands in individual wireless repeaters in the wireless repeater chain.

16. The wireless communication system of claim 9 wherein the wireless access point comprises a Long Term Evolution (LTE) eNodeB.