Sidelink Initial Beam Setup With Parallel ID Verification
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Solution Overview
Problem
Existing device-to-device communication methods in FR2 require inefficient initial beam configuration and terminal verification processes, leading to increased time delays and resource usage.
Innovation Solution
A method for device-to-device communication that involves identifying a sidelink resource, transmitting a beam acquisition request without terminal ID, receiving a response, and exchanging ID information in parallel, reducing the time and resource requirements for initial link configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If traditional sequential beam configuration and terminal verification methods are used, then communication reliability is ensured, but time delay increases and radio resources are wasted
Solution Approach 1:
The patent applies preliminary action by having the first terminal transmit beam acquisition requests without terminal ID information before terminal verification is complete. This allows the second terminal to respond and establish beam configuration in advance, reducing overall time delay while maintaining communication reliability through subsequent ID verification.
Solution Approach 2:
The patent segments the initial link configuration process into two independent phases: beam acquisition (without ID) and terminal verification (with ID). By separating these functions, the system can perform beam configuration faster while ensuring reliability through the verification phase, resolving the time-reliability contradiction.
2Quantity of substance
If terminal ID information is included in beam acquisition requests, then terminal identification is accurate, but radio resource usage increases
Solution Approach 1:
The patent extracts terminal ID information from the beam acquisition request phase and places it in the subsequent terminal verification phase. This separation allows beam acquisition to use minimal radio resources without ID transmission, while terminal identification accuracy is maintained through the dedicated verification process that follows.
3Productivity
If beam sweeping is performed in traditional sequential manner, then beam configuration is thorough, but configuration time increases
Solution Approach 1:
The patent enables continuous beam sweeping operation by allowing the first terminal to transmit beam acquisition requests continuously at different beams without waiting for terminal verification to complete. This continuous action significantly reduces configuration time while maintaining thorough beam configuration through the verification phase.
Data Source
AI summary
The present disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method performed by a first terminal in a communication system, according to an embodiment of the present disclosure, comprises the steps of: identifying a sidelink resource; transmitting a beam acquisition request on the sidelink resource; receiving, from a second terminal, a response to the beam acquisition request; and transmitting ID information of the first terminal to the second terminal, wherein the beam acquisition request may be transmitted based on a reference signal without the ID information of the first terminal, and the beam acquisition request may be transmitted based on a portion of one slot.