IP Library › Granted Patent US 9,559,728
Granted Patent B2
US 9,559,728 · App. 14/531,066 · Granted Jan 31, 2017

Systems and methods for providing resilience to LTE signaling interference in WiFi

Inventors: Alireza Babaei (Westminster, CO); Jennifer Andreoli-Fang (Boulder, CO); Yimin Pang (Boulder, CO)
Assignee: Cable Television Laboratories, Inc.
H03M13/353H04J3/0647H04J3/1694H04L1/0009H04L1/0041H04L5/0092H04W72/0406H04W72/0446H04W72/082H04W84/12
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Quick Facts
Patent No.
US 9,559,728
App. No.
14/531,066
Granted
Jan 31, 2017
Kind
B2
Abstract

Systems and methods presented herein enhance WiFi communications in a RF band where conflicting LTE signaling exists. In one embodiment, a system includes a processor operable to detect the WiFi communications between a UE and a wireless access point of a WiFi network, to identify errors in the WiFi communications, and to determine a periodicity of the errors based on the LTE signaling structure. The system also includes an encoder communicatively coupled to the processor and operable to encode the WiFi communications with error correction, and to change the error correction based on the periodicity of the errors in the WiFi communications.

Claims (53)

1. A system for providing WiFi communications in a Radio Frequency (RF) band with conflicting Long Term Evolution (LTE) signaling, the system comprising:

a processor operable to detect the WiFi communications between a user equipment (UE) and a wireless access point of a WiFi network, to identify errors in the WiFi communications, and to determine a periodicity of the errors based on an LTE signaling structure; and

an encoder communicatively coupled to the processor and operable to encode the WiFi communications with error correction, and to change the error correction based on the periodicity of the errors in the WiFi communications.

2. The system of claim 1 , wherein:

the processor is configured with the wireless access point to train with the UE to establish the WiFi communications with the UE.

3. The system of claim 1 , wherein:

the processor is configured with the UE to train with the wireless access point to establish the WiFi communications with the wireless access point.

4. The system of claim 1 , wherein:

the encoder is further operable to provide a variable rate forward error correction to the WiFi communications that increases an error correction rate when the errors occur and decreases the error correction rate when the errors subside.

5. The system of claim 1 , wherein:

the encoder is further operable to change the error correction by predicting when the errors will occur in the WiFi communications, determining that all bits during that time are in error, and directing a receiver to logically flip the bits when received.

6. The system of claim 1 , wherein:

the encoder is further operable to change the error correction by predicting when the errors will occur in the WiFi communications, filling the WiFi communications with dummy bits at that time, and directing a receiver to ignore the dummy bits when received.

7. A method for providing WiFi communications in a Radio Frequency (RF) band with conflicting Long Term Evolution (LTE) signaling, the method comprising:

detecting WiFi communications between a user equipment (UE) and a wireless access point of a WiFi network;

identifying errors in the WiFi communications;

determining a periodicity of the errors based on an LTE signaling structure; and

changing an error correction in the WiFi communications based on the periodicity of the errors in the WiFi communications.

8. The method of claim 7 , further comprising:

training with the UE to establish the WiFi communications with the UE.

9. The method of claim 7 , further comprising:

training with the wireless access point to establish the WiFi communications with the wireless access point.

10. The method of claim 7 , wherein changing the error correction comprises:

increasing the error correction rate of the WiFi communications rate when the errors occur; and

decreasing the error correction rate when the errors subside.

11. The method of claim 7 , wherein changing the error correction comprises:

predicting when the errors will occur in the WiFi communications;

determining that all bits during that time are in error; and

directing a receiver to logically flip the bits from their received state.

12. The method of claim 7 , wherein changing the error correction comprises:

predicting when the errors will occur in the WiFi communications;

filling the WiFi communications with dummy bits at that time; and

directing a receiver to ignore the dummy bits when received.

13. A non-transitory computer readable medium comprising instructions that, when executed by a processor operating WiFi communications in a Radio Frequency (RF) band with conflicting Long Term Evolution (LTE) signaling, direct the processor to:

detect WiFi communications between a user equipment (UE) and a wireless access point of a WiFi network;

identify errors in the WiFi communications;

determine a periodicity of the errors based on an LTE signaling structure; and

change an error correction in the WiFi communications based on the periodicity of the errors in the WiFi communications.

14. The computer readable medium of claim 13 , further comprising instruction that direct the processor to:

train with the UE to establish the WiFi communications with the UE.

15. The computer readable medium of claim 13 , further comprising instruction that direct the processor to:

train with the wireless access point to establish the WiFi communications with the wireless access point.

16. The computer readable medium of claim 13 , further comprising instruction that direct the processor to:

increase the error correction rate of the WiFi communications rate when the errors occur; and

decrease the error correction rate when the errors subside.

17. The computer readable medium of claim 13 , further comprising instruction that direct the processor to:

predict when the errors will occur in the WiFi communications;

determine that all bits during that time are in error; and

direct a receiver to logically flip the bits from their received state.

18. The computer readable medium of claim 13 , further comprising instruction that direct the processor to:

predict when the errors will occur in the WiFi communications;

fill the WiFi communications with dummy bits at that time; and

direct a receiver to ignore the dummy bits when received.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 3, 2014
From: BABAEI, ALIREZA; ANDREOLI-FANG, JENNIFER; PANG, YIMIN
To: CABLE TELEVISION LABORATORIES, INC.
Reel/Frame 034089/0395 →
Continuity (2)
Provisional Application 62030443 · Jul 29, 2014
Related Publication 20160036467A1 · Feb 4, 2016