Sidelink Resource Pool Configuration via DCI
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Solution Overview
Problem
Current wireless communication networks have limitations in configuring sidelink resource pools, particularly with only one sidelink channel monitoring occasion in a logical slot, which restricts efficient sidelink transmission and reception.
Innovation Solution
The method involves receiving and transmitting downlink configuration information (DCI) from a base station to user equipment (UE) that specifies parameters such as starting symbol offset, symbol durations, and repetition types for sidelink channels, enabling more flexible and efficient sidelink resource pool configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If only one sidelink channel monitoring occasion is used in a logical slot, then the device complexity is reduced, but the sidelink transmission efficiency is limited
Solution Approach 1:
The patent introduces dynamic configuration of multiple sidelink channel monitoring occasions within a logical slot, allowing the system to adapt the number and timing of monitoring occasions based on transmission requirements. This dynamic approach enables enhanced transmission efficiency while managing complexity through flexible rather than fixed configuration.
Solution Approach 2:
The patent segments the logical slot into multiple monitoring occasions, each capable of independently configuring sidelink channels. This segmentation allows parallel monitoring and processing of multiple channels within the same slot, improving throughput and efficiency without requiring a proportional increase in overall system complexity.
2Reliability
If multiple repetitions are configured for sidelink transmission, then the reliability is improved, but the transmission time is increased
Solution Approach 1:
The patent implements periodic repetitions of sidelink transmissions within a logical slot, where multiple repetitions are scheduled at different time positions. This periodic structure enables reliability through redundancy while minimizing time loss by utilizing the available slot time efficiently rather than sequential waiting.
Solution Approach 2:
The patent ensures continuous useful action by overlapping multiple repetitions and monitoring occasions within the logical slot timeline. Rather than completing one transmission fully before starting the next, the system maintains continuous progress on multiple transmission cycles simultaneously, reducing idle time while preserving reliability through repeated attempts.
Data Source
AI summary
Apparatuses, methods, and systems are disclosed for configuring a sidelink resource pool. One method includes receiving, at a user equipment (UE) from a base station, downlink configuration information (DCI) for a resource pool. The DCI indicates: a starting symbol offset from a beginning of a logical sidelink (SL) slot; a physical sidelink shared channel (PSSCH) symbol duration; a symbol offset between the PSSCH and a physical sidelink feedback channel (PSFCH); a symbol offset between the PSFCH and a physical uplink control channel (PUCCH); a number of repetitions; a type of repetitions; or some combination thereof. The method includes performing a sidelink transmission in the resource pool based on the DCI.