CHANNELIZATION FOR SIGNAL BOOSTERS

• US 20170111161A1
• Filed: 10/14/2016
• Published: 04/20/2017
• Est. Priority Date: 10/14/2015
• Status: Active Grant

• Current Assignee: Wilson Electronics LLC (Wilson Electronics Holdings LLC)
• Original Assignee: Wilson Electronics LLC (Wilson Electronics Holdings LLC)
• Inventors: RAGGIO, GLEN, ASHWORTH, CHRIS, COOK, PATRICK
• Granted Patent: US 10,212,716 B2
• Time in Patent Office: Days
• CPC Class Codes: H04B 7/15535 Control of relay amplifier gain amplifier gain control in general H03G3/00; gain control reducing self - or loop interference H04B7/15578
• CPC Class Codes: H04B 7/15542 Selecting at relay station its transmit and receive resources selection of wireless resources by user or terminal H04W72/02; arrangements affording multiple use of the transmission path by two-dimensional division of the resources H04L5/0003, or by allocating sub-channels H04L5/003
• CPC Class Codes: H04L 43/16 Threshold monitoring
• CPC Class Codes: H04L 5/005 of common pilots, i.e. pilots destined for multiple users or terminals
• CPC Class Codes: H04L 5/14 Two-way operation using the same type of signal, i.e. duplex
• CPC Class Codes: H04W 24/08 Testing, supervising or monitoring using real traffic
• CPC Class Codes: H04W 4/025 using location based information parameters
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 72/542 using measured or perceived quality
• CPC Class Codes: H04W 88/04 adapted for relaying to or from another terminal or user
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

A technology is described for increasing signal booster while maintaining network protections. A distance from the signal booster to one or more base stations can be estimated. A base station coupling loss (BSCL) value can be calculated based on the estimated distance. A gain and/or a noise power of an uplink signal of the frequency band can be adjusted based on the BSCL value while maintaining network protections.

Claims

1. A method for increasing signal booster gain while maintaining network protections, comprising:

estimating a distance from the signal booster to one or more base stations;

calculating a base station coupling loss (BSCL) value at a frequency band of a downlink signal based on the estimated distance; and

adjusting one or more of a gain and a noise power of an uplink signal of the frequency band at the signal booster based on the BSCL value to maintain the network protections.

2. The method of claim 1, further comprising calculating the BSCL value of the downlink signal at one or more bands selected from third generation partnership project (3GPP) long term evolution (LTE) frequency bands:

2, 4, 5, 12, 13, 17, or 25.

3. The method of claim 1, further comprising calculating the BSCL value of the downlink signal at one or more bands selected from:

third generation partnership project (3GPP) long term evolution (LTE) frequency division duplex (FDD) bands 1 through 33;

or

3GPP LTE time division duplex (TDD) bands 34 through 44.

4. The method of claim 1, further comprising adjusting one or more of the gain and the noise power of the uplink signal of the frequency band at the signal booster when the BSCL value is less than a threshold value to maintain the network protections.

5. The method of claim 1, wherein estimating the distance further comprises one or more of:

calculating the distance from the signal booster to the one or more base stations using a geographic coordinate system location of the signal booster and a geographic coordinate system location of the one or more base stations;

or

estimating the distance from the signal booster to the one or more base stations using a pilot signal timing;

or

estimating the distance from the signal booster to the one or more base stations based on the pilot signal timing and a difference in the geographic coordinate system location of the signal booster and the one or more base stations.

6. The method of claim 1, further comprising determining a source base station of a selected downlink signal received at the signal booster by comparing the calculated distance of the one or more base stations and the estimated distance of the selected downlink signal using the pilot signal timing to identify a substantially similar distance.

7. The method of claim 1, further comprising:

determining a geographic location of the signal booster using a global positioning system;

determining a geographic location of the one or more base stations using a global positioning system; and

estimating the distance between the signal booster and the one or more base stations based on the determined geographic locations.

8. The method of claim 1, further comprising calculating the base station coupling loss (BSCL) value at the frequency band of the downlink signal over the estimated distance using an estimated loss per distance of a signal at the frequency band traveling through the earth'"'"'s atmosphere.

9. The method of claim 1, further comprising calculating the base station coupling loss (BSCL) value at the frequency band of the downlink signal based on a signal loss terrain model for a location of the signal booster and the one or more base stations.

10. The method of claim 9, wherein the signal loss terrain model is for one or more of a country terrain, a flat terrain, a hilly terrain, a suburb terrain, a city terrain, a mountain terrain, a forest terrain, or a line of site terrain.

11. A method for increasing signal booster gain while maintaining network protections using channelization, comprising:

measuring a downlink signal at a plurality of channels for a selected band to determine a base station coupling loss (BSCL) at each of the plurality of channels;

identifying a closest channel of the plurality of channels associated with a base station that is located nearest to the signal booster;

determining a base station coupling loss (BSCL) value for the closest channel; and

adjusting one or more of a gain and a noise power of an uplink signal of the signal booster based on the BSCL value of the closest channel to maintain the network protections.

12. The method of claim 11, further comprising adjusting one or more of the gain and the noise power of an uplink signal of the signal booster based on the BSCL value of the closest channel when the BSCL value for the closest channel is less than a threshold value

13. The method of claim 11, further comprising measuring the downlink signal at the plurality of channels in one or more of third generation partnership project (3GPP) long term evolution (LTE) frequency bands:

2, 4, 5, 12, 13, 17, or 25.

14. The method of claim 11, further comprising measuring the downlink signal at the plurality of channels in one or more bands selected from:

third generation partnership project (3GPP) long term evolution (LTE) frequency division duplex (FDD) bands 1 through 33;

or

3GPP LTE time division duplex (TDD) bands 34 through 44.

15. The method of claim 11, further comprising identifying the closest channel of the plurality of channels that is associated with the base station that is located nearest to the signal booster by determining a signal with a highest received signal strength indicator (RSSI) as the closest channel.

16. The method of claim 15, further comprising using a comb filter to receive the plurality of channels to enable delayed versions of each channel to be combined to determine the signal with the highest RSSI.

17. The method of claim 11, further comprising removing a BSCL contribution of one or more signals broadcast in the plurality of channels from a broadband BSCL value of the downlink signal based on one of a frequency range of the plurality of channels and a BSCL value of each of the plurality of channels.

18. At least one machine readable storage medium having instructions embodied thereon for increasing signal booster gain using channelization while maintaining network protections, the instructions when executed by one or more processors, at a channelization device or at a signal booster, perform the following:

measuring a downlink signal at a plurality of channels for a selected band to determine a base station coupling loss (BSCL) for the plurality of channels;

determining a base station associated with each of the plurality of channels;

disregarding a BSCL value for each channel of the plurality of channels associated with a base station when a signal booster user is not communicating with the base station; and

adjusting one or more of a gain and a noise power of an uplink signal of the signal booster based on a selected BSCL value of a base station to which a user is communicating while maintaining the network protections.

19. The at least one machine readable storage medium of claim 18, further comprising instructions that, when executed, perform the following:

measuring the downlink signal at the plurality of channels in one or more of third generation partnership project (3GPP) long term evolution (LTE) frequency bands;

2, 4, 5, 12, 13, 17, or 25.

20. The at least one machine readable storage medium of claim 18, further comprising instructions that, when executed, perform the following:

measuring the downlink signal at the plurality of channels in one or more bands selected from;

third generation partnership project (3GPP) long term evolution (LTE) frequency division duplex (FDD) bands 1 through 33;

or

3GPP LTE time division duplex (TDD) bands 34 through 44.

21. The at least one machine readable storage medium of claim 18, further comprising instructions that, when executed, perform the following:

adjusting one or more of the gain and the noise power of the uplink signal of the signal booster based on the selected BSCL value, wherein the selected BSCL value is a lowest BSCL value of a base station to which one or more users are communicating.

22. The at least one machine readable storage medium of claim 18, further comprising instructions that, when executed, perform the following:

measuring a broadband downlink signal at the signal booster to determine a broadband base station coupling loss (BSCL) at the signal booster;

adjusting the broadband BSCL based on the disregarded BSCL value of each channel of the plurality of channels associated with a base station when a signal booster user is not communicating with the base station; and

setting an uplink gain value of the signal booster based on the adjusted broadband BSCL.