Uplink Resource Selection for Overlapping DCI Allocations
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Solution Overview
Problem
Existing communication technologies face challenges in reliably and timely transmitting aperiodic haptic signals due to independent generation of haptic sensors, leading to inefficiencies in resource utilization and delayed data transmission.
Innovation Solution
A data transmission method and apparatus that involves sending first indication information to select an appropriate time-frequency resource for uplink data transmission when multiple overlapping resources are indicated by DCI, allowing for improved resource utilization and timely data delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple time-frequency resources are allocated for uplink data transmission, then transmission reliability is improved, but resource utilization deteriorates due to overlapping resources
Solution Approach 1:
The patent implements dynamic resource selection by introducing indication information that dynamically specifies which time-frequency resource should be used when multiple resources overlap. This allows the system to adaptively choose the most appropriate resource based on current conditions, resolving the contradiction between ensuring transmission reliability through multiple resources and avoiding resource waste through selective usage.
Solution Approach 2:
The patent changes the parameter of resource selection by using indication information to specify which resource to use among multiple overlapping resources. This parameter change mechanism allows the system to maintain reliability by having multiple resources available while avoiding the inefficiency of always using all resources, thus resolving the contradiction between reliability and resource utilization.
2Loss of energy
If indication information is sent to guide resource selection, then resource utilization is improved, but signaling overhead increases
Solution Approach 1:
The patent applies partial action by sending indication information only when multiple time-frequency resources overlap and selection is needed. When resources do not overlap or selection is not required, the indication information is not sent. This partial approach improves resource utilization while minimizing the increase in signaling overhead, resolving the contradiction between the two parameters.
3Loss of information
If terminal device selects time-frequency resource autonomously, then signaling overhead is reduced, but transmission reliability deteriorates due to incorrect selection
Solution Approach 1:
The patent introduces indication information as an intermediary that guides the terminal device's resource selection process. This intermediary provides just enough direction to ensure reliable selection without requiring the network device to explicitly specify every resource allocation detail, thus maintaining transmission reliability while keeping signaling overhead relatively low.
Data Source
AI summary
A data transmission method and apparatus are provided. The method includes: A terminal device receive N pieces of downlink control information (DCI) that include an overlapped time-frequency resource and are available for transmitting different amounts of uplink data for a uplink data transmission, where N is an integer greater than 1. The terminal device determines a first time-frequency resource from the N time-frequency resources based on an amount of to-be-sent data, and sends the to-be-sent data on the first time-frequency resource.