Sidelink Data-Retransmission Configuration for Reference-Signal Interference
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently determining and managing the maximum allowed transmission numbers for sidelink reference signals and sidelink data, which can lead to interference and inefficiencies in data transmission.
Innovation Solution
A method for configuring sidelink resource pools with defined maximum transmission numbers, allowing devices to select appropriate resources and perform retransmissions based on these parameters, optimizing sidelink data and reference signal transmissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the maximum number of sidelink data transmissions is increased to improve reliability, then the number of sidelink reference signal transmissions must also be increased, which leads to increased interference and reduced resource utilization efficiency
Solution Approach 1:
The patent divides the transmission management into separate configurations: one for sidelink data transmissions (with maximum number parameter) and another for sidelink reference signal transmissions (with separate maximum number parameter). This segmentation allows independent control of each transmission type, enabling the system to increase data transmission retries for reliability while limiting reference signal transmissions to reduce interference.
Solution Approach 2:
The patent introduces two distinct maximum number parameters: one governing sidelink data transmissions and another governing sidelink reference signal transmissions. By changing and independently configuring these parameters, the system can optimize transmission reliability for data while controlling reference signal interference, resolving the contradiction between reliability improvement and interference reduction.
2Adaptability or versatility
If separate configurations for sidelink data and reference signal transmissions are implemented, then transmission management flexibility is improved, but system complexity increases
Solution Approach 1:
The patent creates a universal configuration framework where both sidelink data and reference signal transmissions are managed through similar parameter structures (maximum number parameters, resource pool configurations). This multi-functional approach provides flexibility for different transmission types while using consistent configuration mechanisms, reducing the perceived complexity despite the enhanced adaptability.
Data Source
AI summary
Methods, systems, and apparatuses are provided for transmission of sidelink reference signals and sidelink data in a wireless communication system, wherein a method of a first device comprises receiving a first configuration of a first sidelink resource pool shared for sidelink data transmission and sidelink reference signal, receiving a second configuration of a first parameter of a maximum number of sidelink data transmissions in the first sidelink resource pool, selecting a first number for sidelink data retransmissions and also for sidelink reference signal transmissions based on the first parameter, selecting one or more first sidelink resources, in the first sidelink resource pool, according to at least the first number, and performing at least a first sidelink data retransmission for a sidelink data packet and a first sidelink reference signal transmission on a first sidelink resource of the one or more first sidelink resources.