IP Library › Granted Patent US 10,116,373
Granted Patent B1
US 10,116,373 · App. 15/477,398 · Granted Oct 30, 2018

Dynamically adjusting vertical beamforming weights

Inventors: Sreekar Marupaduga (Overland Park, KS); Andrew M. Wurtenberger (Olathe, KS)
Assignee: Sprint Communications Company L.P.
H04B7/0632H04B7/0617H04B17/24H04B17/336H04L43/16H04W88/02H04W88/08
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Quick Facts
Patent No.
US 10,116,373
App. No.
15/477,398
Granted
Oct 30, 2018
Kind
B1
Abstract

Methods and systems are provided for dynamically adjusting vertical beamforming weights to influence a width of a vertical beam emitted from an antenna. A quantity of users present in a particular geographic area is determined, where the user devices have a line of sight with the antenna and are vertically distributed from other user devices. CQIs are received from the user devices. It is determined that the quantity of user devices is above a maximum threshold of user devices, and the CQIs indicated that channel quality is below a minimum threshold. The amplitude and phase components of the vertical beamforming weight are adjusted to modify the width of the vertical beam emitted from the antenna.

Claims (38)

1. One or more non-transitory computer-readable media having computer-executable instructions embodied thereon that, when executed, perform a method for dynamically adjusting vertical beamforming weights to influence a width of a beam emitted from an antenna, the method comprising:

determining a quantity of user devices present in a particular geographic area, wherein at least a portion of the user devices are vertically distributed from others of the user devices;

receiving channel quality indicators (CQIs) from one or more of the user devices;

determining that,

1) the quantity of the user devices is above a maximum threshold of user devices, and

2) the CQIs indicate that channel quality is below a minimum threshold;

based on the CQIs indicating that the channel quality is below the minimum threshold, determining an amplitude value and a phase value for adjusting the width of the vertical beam of the antenna; and

adjusting amplitude and phase components of a vertical beamforming weight based on the determined amplitude value and phase value.

2. The one or more non-transitory computer-readable media of claim 1 , wherein the user devices have a line of sight with the antenna.

3. The one or more non-transitory computer-readable media of claim 1 , wherein the CQIs are sent from the one or more of the user devices to a base station associated with the antenna.

4. The one or more non-transitory computer-readable media of claim 3 , wherein the CQIs are based, in part, on a signal-to-noise ratio between the one or more of the user devices and the base station.

5. The one or more non-transitory computer-readable media of claim 1 , wherein when the CQIs indicate that the channel quality is below the minimum threshold, there is one or more of poor RF conditions, low throughput, or high signal-to-interference-plus-noise ratio (SINR).

6. The one or more non-transitory computer-readable media of claim 1 , wherein the at least the portion of the user devices that are vertically distributed from the others of the user devices are located above or below the others of the user devices.

7. The one or more non-transitory computer-readable media of claim 6 , wherein the user devices are located in a structure having two or more floors.

8. The one or more non-transitory computer-readable media of claim 1 , wherein determining the amplitude value and the phase value further comprises accessing a database that stores amplitude values and phase values correlated to CQI values.

9. The one or more non-transitory computer-readable media of claim 1 , wherein the adjustment of the phase and the amplitude of the vertical beamforming weight is directly correlated to the received CQIs.

10. A method for dynamically adjusting vertical beamforming weights to influence a width of a beam emitted from an antenna, the method comprising:

determining a quantity of user devices present in a particular geographic area, wherein at least a portion of the user devices are vertically distributed from others of the user devices;

receiving channel quality indicators (CQIs) from one or more of the user devices;

determining that,

1) the quantity of the user devices is above a maximum threshold of user devices, and

2) the CQIs indicate that channel quality is above a minimum threshold and below a maximum threshold;

based on the CQIs indicating that the channel quality is above the minimum threshold and below the maximum threshold, determining a phase value for adjusting the width of the vertical beam emitted from the antenna; and

adjusting a phase component of a vertical beamforming weight based on the determined phase value.

11. The method of claim 10 , further comprising not adjusting the amplitude component of the vertical beamforming weight.

12. The method of claim 10 , wherein the user devices have a line of sight to the antenna.

13. The method of claim 10 , wherein determining the phase value further comprises accessing a database that stores phase values correlated to CQI values.

14. A dynamic vertical beamforming system for dynamically adjusting vertical beamforming weights to influence a width of a beam emitted from an antenna, the dynamic vertical beamforming system comprising:

a processor; and

one or more computer storage hardware devices storing computer-usable instructions that, when used by the processor, cause the processor to:

determine that a quantity of user devices having a line of sight to the antenna is above a threshold of user devices, at least a portion of the user devices being vertically separated from others of the user devices;

determine, based on quality information sent from the user devices, current radio frequency (RF) conditions between the antenna and the user devices;

if the current RF conditions are below a minimum threshold, adjusting phase and amplitude components of the vertical beamforming weight; and

if the current RF conditions are above the minimum threshold and below a maximum threshold, adjusting the phase component of the vertical beamforming weight and not adjusting the amplitude component of the vertical beamforming weight.

15. The dynamic vertical beamforming system of claim 14 , wherein the quality information sent from the user devices comprises CQI values.

16. The dynamic vertical beamforming system of claim 14 , wherein the current RF conditions comprise CQI values.

17. The dynamic vertical beamforming system of claim 14 , wherein the RF conditions provide an indication of SINR, throughput, and efficiency.

18. The dynamic vertical beamforming system of claim 14 , wherein the width of the vertical beam emitted from the antenna is widened when the current RF conditions are below the minimum threshold.

Assignments (4)
RELEASE OF SECURITY INTEREST Recorded Aug 23, 2022
From: DEUTSCHE BANK TRUST COMPANY AMERICAS
To: IBSV LLC; LAYER3 TV, LLC; PUSHSPRING, LLC; T-MOBILE CENTRAL LLC; T-MOBILE USA, INC.; ASSURANCE WIRELESS USA, L.P.; BOOST WORLDWIDE, LLC; CLEARWIRE COMMUNICATIONS LLC; CLEARWIRE IP HOLDINGS LLC; SPRINTCOM LLC; SPRINT COMMUNICATIONS COMPANY L.P.; SPRINT INTERNATIONAL INCORPORATED; SPRINT SPECTRUM LLC
Reel/Frame 062595/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 4, 2021
From: SPRINT COMMUNICATIONS COMPANY L.P.
To: T-MOBILE INNOVATIONS LLC
Reel/Frame 055604/0001 →
SECURITY AGREEMENT Recorded Apr 2, 2020
From: T-MOBILE USA, INC.; ISBV LLC; T-MOBILE CENTRAL LLC; LAYER3 TV, INC.; PUSHSPRING, INC.; BOOST WORLDWIDE, LLC; CLEARWIRE COMMUNICATIONS LLC; CLEARWIRE IP HOLDINGS LLC; CLEARWIRE LEGACY LLC; SPRINT COMMUNICATIONS COMPANY L.P.; SPRINT INTERNATIONAL INCORPORATED; SPRINT SPECTRUM L.P.; ASSURANCE WIRELESS USA, L.P.
To: DEUTSCHE BANK TRUST COMPANY AMERICAS
Reel/Frame 053182/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 28, 2017
From: MARUPADUGA, SREEKAR; WURTENBERGER, ANDREW M.
To: SPRINT COMMUNICATIONS COMPANY L.P.
Reel/Frame 043027/0210 →
Cited By (1)
US 12,500,826