Inter-Device Feedback Channel Priority for Shared-Spectrum RB Grouping
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing inter-device physical feedback channel transmissions in shared spectrum, particularly in the context of 6G systems, which require high data rates, low latency, and simultaneous communication with multiple devices.
Innovation Solution
A method and device for determining a first resource block set on a shared spectrum with the lowest communication priority for inter-device physical feedback channels, enabling simultaneous transmission of multiple channels based on contiguous resource blocks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If inter-device physical feedback channel transmissions are scheduled sequentially with traditional priority-based methods, then transmission order is controlled, but latency increases and resource utilization efficiency decreases
Solution Approach 1:
The patent combines multiple inter-device physical feedback channel transmissions into a single simultaneous transmission opportunity by grouping them in the time-frequency resource grid. Multiple feedback channels that would traditionally be transmitted sequentially are merged into one concurrent transmission, reducing latency and improving resource utilization efficiency.
Solution Approach 2:
The patent transitions from sequential time-based transmission to simultaneous time-frequency based transmission. By utilizing both time and frequency dimensions together, multiple feedback channels can be transmitted at the same time across different resource blocks, fundamentally changing the transmission paradigm from one-dimensional time sequence to two-dimensional time-frequency plane.
2Productivity
If multiple inter-device physical feedback channels are transmitted simultaneously, then resource allocation efficiency improves, but channel access control complexity increases
Solution Approach 1:
The patent segments the feedback transmission process into two distinct stages: first, determining the set of feedback channels to be transmitted simultaneously based on priority values; second, actually transmitting the selected channels. This segmentation simplifies the control complexity by breaking down the complex simultaneous transmission task into manageable steps.
Solution Approach 2:
The patent implements a feedback mechanism where the base station determines which feedback channels to transmit based on their priority values and the current channel conditions. The base station selects feedback channels with the smallest priority values for simultaneous transmission, creating a feedback loop that optimizes resource allocation based on real-time conditions.
3Productivity
If feedback channels with smallest priority values are transmitted first, then resource utilization efficiency improves, but transmission order control becomes more complex
Solution Approach 1:
The patent performs preliminary determination of the transmission order before actual transmission occurs. The base station pre-determines which feedback channels should be transmitted simultaneously by comparing their priority values, and this decision is made in advance of the actual transmission event, simplifying the control process.
Solution Approach 2:
The patent changes the parameter used for transmission ordering from fixed sequential order to dynamic priority-based selection. By using priority values as the ordering parameter and selecting channels with the smallest priority values for simultaneous transmission, the system achieves better resource utilization while maintaining simple control logic.
Data Source
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AI summary
A method of operating a first device (100) in a wireless communication system is proposed. The method may comprise the steps of: determining, on a shared spectrum, a first RB set including a first inter-device physical feedback channel transmission, which has the smallest associated inter-device communication priority value, among multiple first scheduled inter-device physical feedback channel transmissions; and performing, on the basis of the first RB set and at least one first RB set adjacent to the first RB set, simultaneous inter-device physical feedback channel transmission for at least one second scheduled inter-device physical feedback channel transmission among the multiple first scheduled inter-device physical feedback channel transmissions.