Uplink Status Signaling via Modulation Mapping
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Solution Overview
Problem
Current information transmission technologies require complex interactions and increased communication resource overheads to notify the receive end device of the transmit end device's status, leading to inefficient resource utilization.
Innovation Solution
A method where the transmit end device determines a modulation parameter set corresponding to its transmission status and sends a symbol sequence, allowing the receive end device to determine the transmission status using preset mapping relationship information, thereby selecting appropriate air interface transmission technologies to simplify interactions and reduce resource overheads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If dedicated communication resources and signaling are provided to transmit transmission status information, then the transmit end device and receive end device can select appropriate air interface transmission technologies, but interaction complexity increases and communication resource overheads increase
Solution Approach 1:
The patent combines the transmission status information with uplink data transmission by using the same physical uplink shared channel (PUSCH) to carry both user data and status information. This merging eliminates the need for separate dedicated signaling resources, thereby reducing interaction complexity and communication resource overheads while maintaining the ability to select appropriate air interface transmission technologies based on the transmission status
2Adaptability or versatility
If dedicated communication resources and signaling are provided to transmit transmission status information, then the transmit end device and receive end device can select appropriate air interface transmission technologies, but communication resource overheads increase
Solution Approach 1:
The patent merges status information transmission with data transmission by embedding status indicators within the uplink data payload on the PUSCH. This approach allows both functions to share the same communication resources, significantly reducing the quantity of communication resources required compared to using separate dedicated signaling channels
Solution Approach 2:
The patent makes the uplink shared channel multi-functional by enabling it to simultaneously carry user data and transmission status information. This universal usage of the PUSCH for both data and control information reduces communication resource overheads while maintaining adaptability in selecting air interface transmission technologies
Data Source
AI summary
Embodiments of the present invention provide a transmission status determining method, where the method includes: receiving, by a receive end device in a first time period, a first symbol sequence sent by a transmit end device; determining a first modulation parameter set according to the first symbol sequence; and determining, according to preset first mapping relationship information, a first transmission status corresponding to the first modulation parameter set as a transmission status of the transmit end device in a second time period, where the first mapping relationship information is used to indicate a one-to-one mapping relationship between N transmission statuses and N modulation parameter sets, the first modulation parameter set belongs to the N modulation parameter sets, and the second time period is later than the first time period.