Terminal Device Pilot Port Aggregation for Data Transmission Reliability
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Solution Overview
Problem
Existing network systems face challenges in meeting diverse requirements for pilots in different scenarios, such as enhanced mobile broadband, ultra-reliable and low-latency communications, and massive machine type communications, leading to limitations in data transmission reliability due to suboptimal channel estimation and detection performance.
Innovation Solution
A method and apparatus that determine and aggregate multiple pilot ports for transmitting data streams, allowing for the generation of pilot signals through precoding processing, which are then sent to a network device, enabling improved data transmission reliability by optimizing pilot usage across different scenarios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a specific pilot is used for channel estimation, then channel estimation can be performed, but data transmission reliability is limited due to degraded channel estimation performance in diversified scenarios
Solution Approach 1:
The patent combines multiple pilot signals (first pilot signal and second pilot signal) to form an aggregated pilot signal for channel estimation. This merging of multiple pilot resources improves channel estimation performance and data transmission reliability by providing more robust channel information, especially in diversified communication scenarios such as eMBB, URLLC, and mMTC.
2Adaptability or versatility
If a specific pilot is used for transmission, then pilot transmission can be performed, but detection performance is degraded due to diversified future network system scenarios
Solution Approach 1:
The patent dynamically selects and aggregates different pilot signals based on the specific communication scenario requirements. For example, in URLLC scenarios, high-density pilots are aggregated to meet low latency and high reliability requirements, while in eMBB scenarios, different pilot aggregation strategies are applied. This dynamic adaptation improves both scenario versatility and detection performance.
3Reliability
If high-density pilots are used for channel estimation in URLLC scenario, then transmission reliability is improved, but system complexity increases due to diversified pilot requirements
Solution Approach 1:
The patent segments the pilot signal transmission into different types (first pilot signal and second pilot signal) with different densities and properties. This segmentation allows the system to apply appropriate pilot aggregation strategies for different communication scenarios, improving transmission reliability while managing system complexity through structured pilot organization.
Data Source
AI summary
This application provides a communications method and apparatus, to improve data transmission reliability. The method includes: determining, by a terminal device, M pilot ports that are used to transmit one data stream, where M is a positive integer greater than or equal to 2; and sending, by the terminal device to a network device, M pilot signals and the data stream that have been subject to same precoding processing, where the M pilot signals are respectively generated based on the M pilot ports.