D2D UE Resource Pool Segmentation for Power Saving
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Solution Overview
Problem
Device-to-Device (D2D) User Equipment (UE) faces challenges in monitoring D2D resources effectively, leading to increased power consumption and potential missed communication data due to the need for prolonged monitoring times, which interferes with cellular communication and D2D sending.
Innovation Solution
A method and device for D2D communication that involves acquiring and monitoring D2D receiving resource pool information, allowing D2D UE to efficiently manage resources and reduce power consumption by enabling simultaneous cellular communication and D2D sending.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If D2D UE monitors D2D SA by adopting blind detection mode with a larger receiving resource pool, then D2D communication reliability is improved, but power consumption increases significantly
Solution Approach 1:
The patent segments the D2D receiving resource pool into multiple sub-pools or monitoring occasions, allowing the UE to monitor only specific segments rather than the entire resource pool continuously. This reduces the overall monitoring burden and power consumption while maintaining reliable detection of D2D SAs through distributed monitoring across segments.
Solution Approach 2:
The patent implements periodic monitoring of D2D SA resources instead of continuous monitoring. The UE monitors D2D SAs at specific periodic intervals or occasions, which significantly reduces power consumption compared to continuous blind detection, while still maintaining adequate communication reliability through appropriately configured monitoring periods.
2Reliability
If D2D UE spends more time monitoring D2D SA resources, then D2D data reception reliability is improved, but cellular communication and D2D sending are interfered with
Solution Approach 1:
The patent divides monitoring activities into segmented time slots or subframes, where the UE alternates between monitoring D2D SAs and performing cellular communication or D2D sending. This segmentation allows the UE to allocate specific time resources for each function, preventing interference while maintaining D2D reception reliability through distributed monitoring opportunities.
Solution Approach 2:
The patent establishes periodic monitoring patterns where the UE monitors D2D SAs at specific periodic intervals rather than continuously. During non-monitoring periods, the UE can perform cellular communication or D2D sending without interference. This periodic approach balances D2D reception reliability with productivity in other communication functions.
3Adaptability or versatility
If D2D UE uses blind detection mode for D2D SA reception, then D2D communication flexibility is improved, but the time required for monitoring increases
Solution Approach 1:
The patent applies preliminary action by having the UE acquire D2D resource pool configuration information in advance from network signaling or pre-configuration. This preliminary information provides guidance on where and when to monitor D2D SAs, reducing the need for extensive blind detection and thereby reducing monitoring time while maintaining communication flexibility.
Solution Approach 2:
The patent incorporates feedback mechanisms where the UE uses detected D2D SA information to adjust subsequent monitoring behavior. Once D2D SAs are detected, the UE can refine its monitoring strategy based on feedback about resource usage patterns, reducing unnecessary blind detection time while maintaining flexibility to adapt to changing communication conditions.
Data Source
AI summary
The present invention discloses a method for monitoring Device-to-Device (D2D) communication, including: a D2D User Equipment (UE) acquiring D2D receiving resource pool information, and monitoring D2D resources according to the D2D receiving resource pool information. The present invention further discloses a device for monitoring D2D communication and a computer storage medium.