Multi-Standard Wireless Coordination via Unified LBT
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Solution Overview
Problem
The increasing use of multiple wireless communication standards like LTE and NR on unlicensed frequency bands leads to data collisions due to uncoordinated data transmission, resulting in inefficiencies and increased latency.
Innovation Solution
Implementing a system where base stations or mobile devices determine the size of data to be sent according to each standard and perform a Listen Before Talk procedure to ensure the frequency channel is clear before transmitting, allowing coordinated transmission times to avoid collisions and optimize data transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple wireless communication standards (LTE and NR) transmit data simultaneously over unlicensed frequency bands, then data transfer capacity increases, but data collisions occur due to uncoordinated transmission
Solution Approach 1:
The patent applies preliminary action by performing a Listen Before Talk (LBT) procedure before data transmission. The system determines the size of data to be sent according to each standard, calculates required transmission time, and checks channel availability in advance. This preliminary channel assessment prevents data collisions by ensuring the frequency channel is clear before coordinated transmission of LTE and NR data begins.
2Reliability
If Listen Before Talk procedures are performed for each data transmission, then data collision avoidance improves, but communication latency increases
Solution Approach 1:
The patent merges multiple LBT procedures into a single coordinated channel assessment. Instead of performing separate LBT procedures for each standard independently, the system performs one unified LBT procedure that checks channel availability for both LTE and NR transmissions. This combining approach reduces redundant channel checks and minimizes communication latency while maintaining reliable collision avoidance.
Solution Approach 2:
The system performs the LBT procedure and determines transmission timing in advance before actual data transmission begins. By calculating data sizes, determining transmission times, and assessing channel availability preliminarily, the system minimizes the time spent on repeated channel checks during active transmission, thereby reducing overall communication latency.
3Reliability
If coordinated transmission timing is implemented for multiple standards, then data collision reduction improves, but system complexity increases
Solution Approach 1:
The patent introduces a coordination mechanism that acts as an intermediary between multiple wireless standards. This mediator determines data sizes for each standard, calculates transmission times, and manages the LBT procedure to coordinate LTE and NR transmissions. By centralizing these coordination functions, the system reduces data collisions while managing complexity through a unified control approach rather than distributed complex interactions.
Data Source
AI summary
Systems and methods are disclosed for coordinating transmission and reception of data according to multiple communication standards over a frequency band. In particular, one or more base stations/mobile electronic devices may determine a first data size of first data to be sent conforming to a first communication standard and a second data size of second data conforming to a second communication standard. A first time period may then be determined for which to send the first data based on the first data size, and a second time period may be determined for which to send the second data based on the second data size. In response to determining that the frequency channel is clear of other transmissions, the first data may be sent according to the first standard in the first time period, and the second data may be sent according to the second standard in the second time period.