Dynamic Data Distribution for OFDM Symbol Mapping
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Solution Overview
Problem
Current data transmission methods lack flexibility in adapting to different service requirements and application scenarios, resulting in suboptimal performance in terms of fast demodulation and transmission reliability.
Innovation Solution
A data transmission method that allows for flexible configuration of data distribution manners between network devices and terminal devices, using time-domain centralization or decentralization methods to prioritize data distribution on time-domain symbols, with corresponding interleaving and mapping strategies to meet specific service needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed data distribution manner is used, then the system is simple to implement, but it cannot meet different service requirements and application scenarios
Solution Approach 1:
The patent implements dynamic data distribution by allowing the network device to flexibly configure distribution manners (centralized or decentralized) based on service requirements. The system transitions from a fixed distribution pattern to a dynamic one where the network device can adaptively select and switch between different distribution strategies according to real-time needs, resolving the contradiction between adaptability and complexity.
Solution Approach 2:
The patent changes the distribution parameter from fixed to configurable, enabling the network device to adjust data distribution characteristics (centralized vs. decentralized) based on different service scenarios. This parameter change allows the system to meet diverse requirements while maintaining manageable complexity through standardized configuration mechanisms.
2Speed
If data is centrally distributed in time domain, then fast demodulation can be achieved, but transmission reliability may be compromised
Solution Approach 1:
The patent enables dynamic switching between centralized and decentralized time-domain distribution based on service requirements. For services requiring fast demodulation, centralized distribution is selected; for services prioritizing reliability, decentralized distribution is chosen. This dynamic approach resolves the contradiction by allowing optimal performance characteristics to be selected for each specific scenario.
Solution Approach 2:
The patent applies different distribution qualities to different data scenarios: centralized distribution for applications needing speed, and decentralized distribution for applications needing reliability. This local quality differentiation allows each service type to receive the appropriate distribution strategy, resolving the universal contradiction between speed and reliability.
3Reliability
If data is decentralized in time domain, then transmission reliability is improved, but demodulation speed decreases
Solution Approach 1:
The patent implements dynamic selection between decentralized and centralized distribution based on service needs. When reliability is the priority, decentralized distribution is activated; when speed is more important, centralized distribution is used. This dynamic mechanism resolves the contradiction by allowing the system to optimize for the appropriate characteristic based on real-time requirements.
Data Source
AI summary
Embodiments of this application provide data transmission methods and apparatuses. One method includes: receiving, by a communications apparatus, indication information from a network device, wherein the indication information indicates a data distribution selected from a first data distribution and a second data distribution; performing, by the communications apparatus, data transmission with the network device based on the data distribution; wherein the data distribution indicates a distribution of modulation symbols of a code block (CB) on one or more orthogonal frequency division multiplexing (OFDM) symbols of at least one resource unit, and wherein the one or more OFDM symbols are consecutive in time-domain.