Interleaved TB Scheduling for Early Reception Termination
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently scheduling multiple transport blocks (TBs) simultaneously in NB-IoT and eMTC systems, leading to increased power consumption and reception delays due to lack of effective methods for early termination of receptions.
Innovation Solution
The method involves interleaving repetitions of transmission for multiple TBs in the time domain, allowing for early termination of receptions by a receiving node, which reduces power consumption and reception delay, and ensures symbol-level combined gains through specific slot group configurations and channel coding techniques.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple TBs are scheduled simultaneously using SPS or DCI, then the productivity of wireless communication is improved, but the power consumption increases and reception delay occurs due to inability to terminate receptions early
Solution Approach 1:
The patent segments the reception process by introducing early termination mechanisms for different TBs. Each TB can be independently terminated based on decoding success, allowing the receiver to stop processing individual TBs early while maintaining overall system productivity. This segmentation resolves the contradiction by enabling selective early termination without compromising multiple TB scheduling efficiency.
Solution Approach 2:
The patent implements dynamic reception termination where the receiver adaptively decides when to stop receiving each TB based on real-time decoding outcomes. This dynamic approach allows the system to maintain high productivity when multiple TBs are successfully decoded early, while reducing power consumption by terminating receptions selectively, thus resolving the contradiction between productivity and energy usage.
2Productivity
If multiple TBs are scheduled simultaneously using SPS or DCI, then the productivity of wireless communication is improved, but the reception delay increases due to lack of early termination capability
Solution Approach 1:
The patent segments the reception timeline by allowing early termination of individual TB receptions based on decoding success. This segmentation enables the system to maintain high productivity through parallel TB scheduling while reducing reception delay by terminating successful TBs early, thus resolving the contradiction between productivity and time loss.
Solution Approach 2:
The patent applies preliminary action by performing decoding checks at intermediate points during TB reception. When decoding succeeds early, the system terminates reception immediately, preventing unnecessary delay. This preliminary decoding action resolves the contradiction by maintaining productivity through efficient parallel scheduling while minimizing reception delay through early termination capability.
3Use of energy by moving object
If repetitions of transmission for multiple TBs are interleaved in time domain, then the power consumption is reduced and reception delay is minimized, but the device complexity increases due to slot group configuration and interleaving management
Solution Approach 1:
The patent segments the time domain into structured slot groups with defined interleaving patterns. This segmentation reduces power consumption by enabling early termination within each slot group while managing complexity through standardized group configurations. The segmentation approach resolves the contradiction by providing a systematic framework that balances energy efficiency with implementation complexity.
Solution Approach 2:
The patent uses parameter changes by configuring slot groups with specific interleaving patterns and repetition factors. These parameter adjustments optimize power consumption by controlling reception duration while managing device complexity through configurable parameters rather than fixed complex structures. This resolves the contradiction by allowing flexible optimization of energy usage with controlled complexity through parameter management.
4Loss of time
If repetitions of transmission for multiple TBs are interleaved in time domain, then the reception delay is reduced through early termination, but the device complexity increases due to interleaving management
Solution Approach 1:
The patent segments the reception process into discrete slot groups with clear interleaving boundaries. This segmentation reduces reception delay by enabling early termination at slot group boundaries while managing complexity through structured segmentation rather than unmanaged interleaving. The segmentation approach resolves the contradiction by providing clear termination points that reduce delay without requiring complex continuous management.
Solution Approach 2:
The patent implements periodic action through regular slot group interleaving patterns. This periodic structure reduces reception delay by establishing predictable termination intervals while managing complexity through repetitive, standardized patterns rather than irregular complex schedules. The periodic approach resolves the contradiction by creating regular early termination opportunities with manageable complexity through pattern repetition.
Data Source
AI summary
A method and a device in a communication node for wireless communications are disclosed in the present disclosure. The communication node first receives a first signaling; and then receives a first radio signal in K1 slots and receives a second radio signal in K2 slots; the first signaling is used to determine the K1 and the K2; a first TB is used to generate the first radio signal, while a second TB is used to generate the second radio signal, the first TB comprising a positive integer number of bit(s), and the second TB comprising a positive integer number of bit(s); the K1 slots are divided into X1 slot groups, while the K2 slots are divided into X2 slot groups, and positions of the X1 slot groups and the X2 slot groups are interleaved in time domain. The present disclosure can reduce power consumption and improve coverage performance.