Multi-TRP Configured Grant Uplink Transmission
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Solution Overview
Problem
Current configured grant technologies in mobile equipment only allow uplink transmissions to a single network access point, limiting the ability to efficiently manage and transmit data to multiple access points.
Innovation Solution
The apparatus determines and utilizes multiple uplink resources associated with different configured grant configurations to transmit a transport block via distinct channels, enabling simultaneous transmission to multiple transmission/reception points using separate channels and HARQ processes, with timers controlling the availability of transmission occasions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If configured grant is used for uplink transmission to a single network access point, then the transmission mechanism is simple and manageable, but the ability to transmit data to multiple access points is limited
Solution Approach 1:
The patent divides the configured grant mechanism into multiple independent configurations (first configured grant configuration and second configured grant configuration), each associated with different uplink resources and channels. This segmentation allows the system to transmit to multiple TRPs while maintaining manageable complexity through modular configuration structures.
Solution Approach 2:
The configured grant mechanism is enhanced to serve multiple functions: it can now transmit data to both single and multiple network access points using the same fundamental mechanism. The patent achieves this by allowing multiple configured grant configurations to share common elements (such as HARQ process identifiers) while maintaining independent resource allocations.
2Reliability
If multiple configured grant configurations are used for multi-TRP transmission, then data transmission reliability is improved, but the complexity of managing multiple configurations increases
Solution Approach 1:
The patent merges multiple configured grant configurations by associating them through common HARQ process identifiers. This combining approach allows the system to manage multiple configurations more efficiently by grouping them under shared identification, reducing the overhead of managing completely separate configuration sets while maintaining the reliability benefits of multi-TRP transmission.
Solution Approach 2:
The network configures multiple configured grant configurations in advance before actual data transmission occurs. This preliminary configuration includes pre-defining uplink resources, channels, and HARQ process associations, which simplifies real-time transmission management by having all parameters predetermined and ready for use.
3Productivity
If simultaneous transmission on multiple channels is performed, then transmission efficiency and latency are improved, but the coordination and timing management becomes more complex
Solution Approach 1:
The patent employs periodic transmission opportunities for each configured grant configuration, where uplink resources are allocated at regular intervals. This periodic structure simplifies timing coordination by creating predictable transmission patterns that are easier to manage than arbitrary schedules, while still enabling simultaneous multi-channel transmission when periodic opportunities align.
Data Source
AI summary
An apparatus comprising means for: receiving at least one configuration message; determining at least a first uplink resource associating to a first configured grant configuration and a second uplink resource associating to a second configured grant configuration based on the at least one configuration message; generating a transport block; transmitting the transport block on the first uplink resource associating to the first configured grant configuration via a first channel; transmitting the transport block on the second uplink resource associating to the second configured grant configuration via a second channel, wherein the first configured grant configuration is different to the second configured grant configuration, and wherein the first channel is different to the second channel.