WiFi Link Encoding Tuned to Periodic LTE Reference Signal Errors
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Solution Overview
Problem
LTE wireless communications interfere with WiFi systems due to continuous operation in the same RF band, causing interference and making it difficult for WiFi to sense clear channels for transmission, especially due to periodic transmission of reference symbols by LTE systems.
Innovation Solution
A system that detects WiFi communications errors caused by LTE signaling, determines their periodicity, and adjusts error correction accordingly to enhance WiFi communications by encoding data with error correction mechanisms that anticipate and mitigate interference from LTE reference signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If LTE operates continuously in the same RF band as WiFi, then LTE coverage and service continuity are improved, but WiFi channel sensing capability deteriorates due to constant interference
Solution Approach 1:
The system performs preliminary detection of LTE reference signal periodicity before WiFi transmission, and pre-adjusts error correction parameters and power levels in advance to mitigate anticipated interference, rather than reacting after interference occurs
Solution Approach 2:
The WiFi system dynamically adjusts its transmission parameters including error correction strength and power level based on real-time detection of LTE signaling patterns, transforming from static operation to adaptive response to changing interference conditions
2Stability of the object's composition
If LTE transmits reference symbols periodically, then LTE system synchronization and coverage are improved, but WiFi signaling reliability deteriorates due to periodic interference bursts
Solution Approach 1:
The system continuously monitors WiFi communication quality, detects errors correlated with LTE reference signal transmissions, and uses this feedback to adjust error correction parameters dynamically, creating a closed-loop adaptation mechanism
Solution Approach 2:
The system changes error correction parameters and transmission power levels in response to detected LTE interference patterns, adapting physical layer parameters to compensate for periodic interference from LTE reference signals
3Adaptability or versatility
If WiFi uses channel sensing and random backoff for coexistence, then WiFi can share unlicensed spectrum, but WiFi transmission opportunities are reduced due to LTE continuous operation
Solution Approach 1:
The system performs preliminary detection of LTE reference signal periodicity and anticipates interference patterns before attempting WiFi transmission, allowing proactive scheduling of transmissions during predicted clear periods
Solution Approach 2:
The system dynamically adapts transmission timing and error correction strength based on detected LTE interference patterns, optimizing the balance between channel access opportunities and transmission reliability in shared spectrum
Data Source
AI summary
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.