Grant-Free Uplink Idle Occasion Reuse Through Terminal Reporting
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Solution Overview
Problem
The challenge in existing technologies is how to reliably and effectively reuse unused uplink grant-free transmission occasions in communication systems.
Innovation Solution
A method and apparatus for determining an idle occasion by a terminal or base station, involving the reception and transmission of signaling to identify and release idle uplink grant-free transmission resources for reuse, utilizing idleness information to determine and communicate the availability of these resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If uplink grant-free transmission occasions are allocated for terminal devices, then transmission reliability is improved, but resource utilization efficiency deteriorates when occasions remain unused
Solution Approach 1:
The patent applies preliminary action by having the terminal device report idle transmission occasions in advance before the next transmission cycle. The base station receives this advance information and proactively reuses the identified idle occasions, avoiding wasted resources while maintaining transmission reliability for devices that do need to transmit.
Solution Approach 2:
The patent implements feedback through the terminal device reporting its idle transmission occasions to the base station. This feedback mechanism enables the base station to understand which occasions were not used and can then reallocate these occasions to other terminals, improving overall resource utilization while preserving the reliability of granted transmissions.
2Ease of operation
If transmission occasions are reserved for grant-free uplink transmission, then access simplicity is improved, but flexibility to reallocate resources deteriorates
Solution Approach 1:
The system performs preliminary identification of idle occasions by having terminals report their usage status before the next allocation cycle. This advance preparation allows the base station to maintain the simplicity of grant-free access for active terminals while simultaneously planning flexible reallocation of identified idle occasions to other terminals that need them.
Solution Approach 2:
The patent introduces dynamics by enabling the transmission occasion allocation to change based on actual usage patterns. The base station dynamically adjusts resource allocation by reusing idle occasions identified through terminal reports, transforming a static reservation system into a dynamic one that adapts to real-time needs while preserving access simplicity.
3Device complexity
If idle transmission occasions are not reused, then system complexity is reduced, but resource waste increases
Solution Approach 1:
The patent applies self-service by having terminal devices autonomously report their own idle transmission occasions to the base station. This self-reporting mechanism enables resource reuse without requiring complex centralized management or additional signaling overhead, achieving resource efficiency while keeping system complexity low.
Solution Approach 2:
The system performs preliminary reporting of idle occasions by terminals before the next allocation cycle, enabling the base station to proactively reallocate resources. This advance preparation achieves resource reuse efficiency without requiring complex real-time negotiation or management protocols, thus avoiding significant system complexity increases.
Data Source
AI summary
Methods for determining an idle occasion, an apparatus and a storage medium. The method includes: receiving first signaling sent by a base station, the first signaling being used to indicate at least one uplink grant-free transmission resource on a bandwidth part configured by the base station for the terminal; and according to idleness information, determining an idle occasion released from a transmission occasion of the at least one uplink grant-free transmission resource. The idle occasion is for reuse by the base station.