Terminal Transmission Priority Mapping for Uplink-Sidelink Deadlock
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Solution Overview
Problem
Existing communication systems face a deadlock phenomenon due to unreasonable priority rules between uplink and sidelink data transmission, leading to indecision on which data to send first.
Innovation Solution
A method and terminal device that determine transmission priority by identifying the highest priority data in uplink data and applying corresponding priority rules to resolve the deadlock, ensuring more reasonable prioritization between uplink and sidelink data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If preset threshold comparison rules are used to determine transmission priority between uplink and sidelink data, then the priority determination process is simple, but it causes deadlock when neither data type satisfies the threshold conditions
Solution Approach 1:
The patent inverts the traditional threshold comparison approach by establishing a priority mapping relationship where uplink data types are mapped to corresponding sidelink data types. Instead of comparing against fixed thresholds, the system determines priority by mapping uplink data (TYPE1 MAC CE, TYPE2 MAC CE, MAC SDU) to sidelink data types and comparing their mapped priorities, ensuring a deterministic transmission decision is always reached.
Solution Approach 2:
The patent introduces a priority mapping relationship as an intermediary mechanism between uplink and sidelink data priority determination. This mapping relationship acts as a mediator that translates uplink data priority levels into comparable sidelink data priority levels, enabling consistent priority comparison and eliminating deadlock situations where threshold-based rules fail to provide clear transmission decisions.
2Ease of manufacture
If fixed priority rules are applied without considering data type characteristics, then the rule implementation is straightforward, but it fails to account for different data priorities within uplink data
Solution Approach 1:
The patent applies local quality by treating different uplink data types (TYPE1 MAC CE, TYPE2 MAC CE, MAC SDU) with different priority characteristics. Each data type is mapped to specific sidelink data types with corresponding priority levels, allowing the system to adapt priority determination to the specific characteristics of each data type rather than applying a uniform fixed rule to all data.
Solution Approach 2:
The patent changes the priority determination parameter from fixed threshold values to dynamic mapped priority values. The priority mapping relationship allows the system to adapt priority levels based on data type characteristics, transforming the rigid fixed-rule approach into a flexible parameter-based approach that can accommodate different data priorities while maintaining straightforward implementation through pre-defined mapping tables.
Data Source
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AI summary
The present disclosure relates to a method and a terminal device for determining transmission priority. Wherein the method for determining transmission priority includes: obtaining, by a terminal device, corresponding priority rule according to data with highest priority in uplink data, and determining transmission order of the uplink data and sidelink data. Using the priority rule corresponding to the data with the highest priority in the uplink data, it is more reasonable to determine whether to send the uplink data or the sidelink data preferentially, so as to avoid the deadlock problem caused by the unreasonable sending priority rules between the uplink and the sidelink.