Uplink Channel Overlap Handling for Single-Carrier Transmission
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Solution Overview
Problem
In communication systems like the New Radio (NR) system, overlapping uplink channels with different starting symbols and lengths can destroy the single-carrier characteristic of terminals, leading to poor uplink channel transmission performance due to varying transmit powers.
Innovation Solution
A method and apparatus for handling uplink channel overlapping in time domain resources by applying a preset rule based on priority, type, starting time, configuration, or network-side device configuration to prioritize and multiplex or drop uplink channels, ensuring single-carrier integrity and improving transmission performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple overlapping uplink channels are transmitted in one slot, then the channel capacity and data transmission efficiency are improved, but the single-carrier characteristic of terminals is destroyed and transmit power varies, causing poor uplink channel transmission performance
Solution Approach 1:
The patent changes the parameter of transmit power allocation by introducing different power allocation strategies for overlapping uplink channels. The terminal device adjusts power distribution based on channel priority, type, and overlap conditions, transforming the power parameter to maintain single-carrier characteristics while enabling multiple channel transmissions. This resolves the contradiction by modifying the power parameter to simultaneously achieve high efficiency and reliable transmission.
2Adaptability or versatility
If multiple overlapping uplink channels are transmitted in one slot, then the system can support more services and channels, but the single-carrier characteristic is destroyed leading to power deterioration
Solution Approach 1:
The patent applies local quality by differentiating treatment for different uplink channels based on their specific characteristics. The terminal device identifies each channel's priority, type, and resource overlap status, then applies localized power allocation and multiplexing strategies to specific channels rather than uniform treatment. This allows the system to support diverse services while maintaining single-carrier characteristics through channel-specific optimizations.
Solution Approach 2:
The patent introduces dynamic channel handling mechanisms where the terminal device dynamically adjusts transmission parameters based on real-time channel conditions and overlap situations. The power allocation and multiplexing decisions are made dynamically according to channel priority, type, and resource availability, enabling the system to adaptively support multiple services while preserving single-carrier characteristics through flexible, condition-based parameter adjustment.
3Adaptability or versatility
If uplink channels with different priorities and configurations are handled without a preset rule, then the system flexibility is maintained, but the transmission performance deteriorates due to power variation
Solution Approach 1:
The patent implements preliminary action by establishing preset handling rules for uplink channel overlaps before transmission occurs. The terminal device is pre-configured with priority-based handling mechanisms, channel type classifications, and power allocation strategies. When overlaps occur, these pre-established rules are applied systematically to determine transmission priorities and power distribution, ensuring consistent transmission performance while maintaining system flexibility through configurable rule sets.
Data Source
AI summary
An uplink channel transmission method and apparatus and a terminal. The uplink channel transmission method includes: in a case of uplink channel overlapping in time domain resource, handling, by a terminal, the overlapping between uplink channels according to a preset rule; and transmitting, by the terminal, overlap-handled uplink channels, where the uplink channels overlapping in time domain resource include uplink channels of different priorities, and the preset rule is associated with at least one of the following: priority of uplink channel, type of uplink channel, starting time of uplink channel, configuration of uplink channel, capability of the terminal, or configuration information transmitted by a network-side device, where the configuration information is used to indicate an order of handling overlapping of uplink channel transmissions.