Unlicensed Spectrum Random Access via Parallel Beam Detection
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Solution Overview
Problem
Current wireless communication systems lack a feasible solution for performing a random access process on unlicensed frequency bands, particularly in scenarios where secondary cells are involved, leading to inefficiencies in channel detection and increased delay.
Innovation Solution
The implementation of electronic equipment with processing and transceiver circuits that perform channel detection on unlicensed spectrum beam directions and transmit random access preamble sequences in idle beam directions, optimizing beam directions for efficient communication and reducing detection delays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If channel detection is performed on unlicensed frequency bands using traditional methods, then channel access can be achieved, but the detection process is time-consuming and causes increased delay
Solution Approach 1:
The channel detection process is segmented by performing detection on multiple beam directions simultaneously rather than sequentially. The processing circuit divides the unlicensed spectrum into multiple beam directions and performs channel detection on each direction in parallel, significantly reducing the total detection time while maintaining comprehensive channel assessment coverage.
Solution Approach 2:
The system performs preliminary channel detection on multiple beam directions before the random access process. By提前 detecting the channel state in different beam directions and identifying idle directions in advance, the system prepares the optimal transmission paths beforehand, avoiding time-consuming detection during the critical random access phase.
2Adaptability or versatility
If random access process is implemented on unlicensed frequency bands without optimized beam directions, then channel access is possible, but communication efficiency is reduced
Solution Approach 1:
The system dynamically determines beam directions for random access based on real-time channel detection results. Instead of using fixed or predetermined beam directions, the processing circuit adapts the beam selection according to the detected channel state in different directions, optimizing the random access process for current channel conditions and improving communication efficiency.
Solution Approach 2:
The system changes the beam direction parameter dynamically during the random access process. By selecting different beam directions based on channel detection outcomes and transmitting random access preambles through optimized directions, the system adapts transmission parameters to maximize communication efficiency on unlicensed frequency bands.
Data Source
AI summary
The present application relates to an electronic device in a wireless communication system, and a wireless communication method. The electronic device in a wireless communication system according to the present application comprises: a processing circuit, configured to perform a channel detection process in one or more beam directions of an unlicensed spectrum; and a transceiver circuit, configured to transmit a random access preamble sequence in one or more beam directions in which channels are detected as idle. The electronic device and the wireless communication method of the present application can implement a random access process on an unlicensed spectrum, improve the channel detection efficiency, and reduce the delay caused by the channel detection process.