Sidelink Resource Pool Allocation for Higher D2D and V2X Throughput
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Solution Overview
Problem
Current wireless communication systems limit mobile stations operating in network scheduled mode to a single resource pool for sidelink communication, restricting efficiency, throughput, and peak data rates in D2D and V2X communications.
Innovation Solution
Enable mobile stations to utilize multiple resource pools for sidelink communication by transmitting explicit or implicit indicators, such as through DCI information, scrambling operations, or predefined mappings, allowing flexible resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If mobile stations are limited to a single resource pool for sidelink communication, then device complexity is reduced and ease of operation is improved, but sidelink communication efficiency, throughput, and peak data rates deteriorate
Solution Approach 1:
The patent divides the available resources into multiple resource pools, each with different characteristics (e.g., different time-frequency resources, different QoS parameters). Mobile stations can be assigned to different resource pools based on their communication needs, allowing simultaneous support of multiple services with different requirements while maintaining manageable complexity through structured organization.
Solution Approach 2:
The patent enables dynamic resource pool assignment where mobile stations can be moved between different resource pools based on changing communication conditions, service requirements, or network load. This dynamic allocation allows the system to adapt to varying demands and optimize throughput and efficiency without requiring complex manual configuration.
2Productivity
If mobile stations are limited to a single resource pool, then resource allocation simplicity is improved, but bandwidth utilization and throughput for proximity services deteriorate
Solution Approach 1:
The patent creates a universal resource allocation framework where a single base station can manage multiple resource pools that serve different functions (e.g., one pool for D2D communication, another for V2X, another for high-priority traffic). This multi-functional approach allows the system to handle diverse proximity services through a unified management mechanism, improving overall throughput without proportionally increasing complexity.
Solution Approach 2:
The patent allows changing key parameters of resource pools such as time allocation, frequency allocation, and QoS parameters to optimize throughput for different services. By adjusting these parameters dynamically, the system can maximize bandwidth utilization for proximity services while maintaining manageable complexity through standardized parameter management procedures.
3Quantity of substance
If multiple resource pools are designated for sidelink communication, then spectral efficiency and bandwidth utilization are improved, but the complexity of resource management and indicator signaling increases
Solution Approach 1:
The patent extracts the resource pool indication information from complex detailed configurations and represents it through simplified indicators or indices. Instead of signaling complete resource pool configurations, the system uses compact indicators that reference pre-defined resource pools, significantly reducing signaling overhead while still enabling access to multiple resource pools for improved spectral efficiency.
Solution Approach 2:
The patent uses indicator-based referencing where instead of transmitting full resource pool descriptions, the system transmits compact indicators that copy or reference previously defined resource pool configurations. This approach allows mobile stations to access multiple resource pools with minimal additional signaling, as the actual resource configurations are reused from existing definitions.
Data Source
AI summary
A communication method, comprising: transmitting from a base station to a mobile station a first message which includes resource information corresponding to one or more resource pools, wherein the resource information identifies at least one sub-frame and at least one resource block within the at least one sub-frame, transmitting to the mobile station an indicator of one or more designated resource pools and designated resources from within the one or more designated resource pools such that the mobile station is permitted to communicate with a wireless device in communication with the mobile station via a wireless link using the one or more designated resources within the one or more designated resource pools.