Sidelink Resource Pools for Multi-Numerology Slot Mapping
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Solution Overview
Problem
Existing sidelink communication systems, particularly in 5G technology, struggle to accommodate multiple time-frequency parameters, leading to inefficiencies in resource configuration and management, which are crucial for advanced services like automatic driving and sensor data sharing.
Innovation Solution
The sidelink resource configuration method and apparatus introduce a communication technology with multiple time-frequency parameters by using a second time slot as granularity, where the length of the second time slot is determined by a conversion relationship with a first time slot, allowing for flexible and efficient resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed single time-frequency parameter is used in sidelink communication, then the system structure is simple and easy to manage, but the system cannot accommodate multiple numerologies required by 5G technology for different service scenarios
Solution Approach 1:
The patent segments the resource pool configuration into different parts: a first resource pool configured with a first time-frequency parameter and a second resource pool configured with a second time-frequency parameter. This segmentation allows the system to support multiple numerologies while maintaining clear and manageable configuration structures for each parameter set.
Solution Approach 2:
The patent creates a universal resource configuration mechanism that can handle multiple time-frequency parameters through a unified approach. The network side device uses a single configuration message to indicate both resource pools, and the terminal device processes both configurations using a consistent mapping relationship between the first and second time-frequency parameters, achieving multi-functionality without proportionally increasing complexity.
2Ease of manufacture
If resource configuration is performed using a reference time-frequency parameter, then the configuration process is simplified, but the mapping and conversion between different time-frequency parameters increases processing complexity
Solution Approach 1:
The patent introduces a mapping relationship as an intermediary between the first time-frequency parameter (reference parameter) and the second time-frequency parameter. This mapping relationship acts as a mediator that allows the system to maintain a simple reference-based configuration process while enabling efficient conversion between different parameters through predefined correspondence rules.
Solution Approach 2:
The patent establishes the mapping relationship between different time-frequency parameters in advance during system configuration. By performing this preliminary action, the actual runtime processing complexity is reduced, as the conversion between parameters can be directly performed using the pre-established mapping without complex calculations.
3Reliability
If a single resource pool is used for all traffic types, then the resource management structure is simple, but the system cannot provide differentiated service quality for different traffic types
Solution Approach 1:
The patent segments the resource pools into a first resource pool and a second resource pool, each associated with specific time-frequency parameters. This segmentation enables differentiated resource management for different traffic types and service scenarios, improving reliability for advanced services while maintaining a relatively simple overall structure through clear separation of concerns.
Data Source
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AI summary
Provided are a sidelink resource configuration method and apparatus, a sidelink communication method and apparatus, a base station, a terminal, and a computer medium. The sidelink resource configuration method includes: configuring or pre-configuring a sidelink resource pool for a user equipment (UE) to perform sidelink communications using a resource in the sidelink resource pool; where the sidelink resource pool uses a second time slot as granularity and includes resource blocks, where an ith resource block is k(i) times the second time slot, k(i) is a rational number greater than 0, and i is greater than or equal to 1; and where a length of the second time slot is determined according to a second time-frequency parameter for defining the sidelink resource pool, the second time slot is determined by mapping from a first time slot included in a set of alternative resources according to a conversion relationship between the second time-frequency parameter and a first time-frequency parameter used by the set of alternative resources, and a length of the first time slot is determined according to the first time-frequency parameter.