Wireless Signal Acquisition via Segmented Pilot Sequences
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Solution Overview
Problem
Current wireless communication systems face inefficiencies in signal acquisition due to the need for terminals to detect and synchronize with base stations, which requires significant system resources and is affected by interference variations and poor pilot signal properties.
Innovation Solution
The generation and transmission of acquisition pilots based on time domain pilot sequences, where a common sequence provides general timing information and unique sequences aid in identifying specific base stations, minimizing interference effects and optimizing resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional signal acquisition methods are used, then terminals can detect and synchronize with base stations, but significant system resources are consumed and interference variations affect performance
Solution Approach 1:
The acquisition pilot is segmented into multiple time-domain pilot sequences transmitted at different time intervals. This segmentation allows the terminal to perform signal acquisition in stages, reducing the total resource consumption while maintaining acquisition reliability through structured pilot transmission.
Solution Approach 2:
The base station transmits acquisition pilots periodically at different time intervals using time-domain pilot sequences. This periodic transmission enables the terminal to synchronize timing and detect base stations without requiring continuous high-resource consumption, as pilots are transmitted only at specific intervals.
2Measurement precision
If multiple acquisition pilots are transmitted to provide unique identification, then base station identification accuracy improves, but transmission time and resource usage increase
Solution Approach 1:
The acquisition pilot is divided into multiple time-domain pilot sequences, each serving a specific function (system-wide synchronization, subset identification, etc.). This segmentation allows precise base station identification without requiring all pilots to be transmitted simultaneously, thus reducing total transmission time while maintaining identification accuracy.
Solution Approach 2:
The base station transmits acquisition pilots in advance at different time intervals before the terminal needs to establish communication. This preliminary transmission of pilot sequences enables the terminal to perform identification and synchronization ahead of time, reducing the overall time required for signal acquisition without increasing resource consumption.
Data Source
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AI summary
A method and apparatus for transmitting acquisition pilots in a wireless communication system, comprising generating a first acquisition pilot based on a portion of bits of an identity of a transmitter entity, generating a second acquisition pilot based on all bits of the identity of the transmitter entity, transmitting the first acquisition pilot in a first time interval and transmitting the second acquisition pilot in a second time interval.