Sidelink Resource Allocation Mode Switching During Cell Inactive Time
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Solution Overview
Problem
Existing sidelink resource allocation mechanisms in wireless communication networks are inefficient, leading to suboptimal utilization of resources and increased latency in device-to-device communication.
Innovation Solution
A mechanism for sidelink resource allocation mode selection that dynamically adjusts based on traffic load, device capabilities, and network conditions, allowing for more efficient use of resources and reduced latency in device-to-device communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If existing sidelink resource allocation mechanisms are used, then device-to-device communication can be established, but resource utilization is suboptimal and latency is increased
Solution Approach 1:
The patent implements dynamic resource allocation where the sidelink resource allocation mode is not fixed but can be changed based on real-time network conditions, traffic load, and device capabilities. The network device dynamically selects between mode 1 and mode 2 allocation, and UEs dynamically adjust their resource selection based on received configuration and channel conditions, thereby optimizing resource utilization and reducing latency adaptively
Solution Approach 2:
The patent changes key parameters including the resource allocation mode (mode 1 vs mode 2), bandwidth part configurations, and resource pool parameters based on network conditions. By adjusting these parameters dynamically, the system achieves better resource utilization and reduced communication latency compared to static allocation mechanisms
2Productivity
If dynamic resource allocation is implemented, then resource utilization and latency are improved, but system complexity increases
Solution Approach 1:
The patent introduces a network device as an intermediary that manages the complexity of dynamic resource allocation. The network device receives capability information from UEs, determines appropriate allocation modes, and provides configuration information to guide UE resource selection. This intermediary approach centralizes the complex decision-making logic, reducing the burden on individual UEs while maintaining dynamic optimization benefits
Solution Approach 2:
The patent segments the resource allocation process into distinct phases and components: capability reporting phase, mode determination phase, configuration provision phase, and resource selection phase. By dividing the complex allocation mechanism into manageable segments with clear interfaces, the system achieves dynamic optimization while keeping implementation complexity可控
Data Source
AI summary
A wireless device receives, from a base station, one or more configuration parameters, of a cell, indicating a cell inactive time associated with cell discontinuous reception (DRX) or cell discontinuous transmission (DTX). The wireless device determines, based on the cell being in the cell inactive time, a first sidelink resource allocation mode among a plurality of sidelink resource allocation modes. The first sidelink resource allocation mode allows the wireless device to select a sidelink resource. The wireless device transmits, to a second wireless device, a sidelink transmission via a first sidelink resource based on the first sidelink resource allocation mode.