Terminal Uplink Control via Shared Channel to Simplify Collision Handling
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Solution Overview
Problem
The allocation of uplink control and shared channels in a slot complicates signal collision control, making terminal implementation difficult in wireless communication systems.
Innovation Solution
A terminal is designed to transmit uplink information via an uplink shared channel using an upper layer, such as the MAC layer, to simplify the transmission process and reduce complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If uplink control channel and uplink shared channel are allocated freely in a slot, then resource utilization and flexibility are improved, but signal collision control complexity and terminal implementation difficulty increase
Solution Approach 1:
The patent extracts the collision control function from the terminal device and relocates it to the network side (base station). The network side determines whether PUCCH and PUSCH signals collide and decides which channel to prioritize for transmission. This extraction resolves the contradiction by maintaining flexible channel allocation while removing the complexity of collision control from the terminal, allowing free resource allocation without burdening the terminal with complex collision handling logic
Solution Approach 2:
The network side acts as an intermediary that mediates between the flexible channel allocation requirements and the collision control needs. By having the network side receive terminal capability information and make scheduling decisions based on this information, the system achieves both flexible resource allocation and simplified terminal implementation, as the intermediary handles the complex coordination
2Adaptability or versatility
If complex multiplexing and collision handling are implemented in the terminal, then channel allocation flexibility is improved, but terminal implementation difficulty and power consumption increase
Solution Approach 1:
The patent extracts the complex multiplexing and collision handling functions from the terminal and transfers them to the network side. The terminal only needs to transmit capability information and receive scheduling decisions, while the network side performs the complex operations of determining signal collisions and prioritizing channels. This resolves the contradiction by maintaining channel allocation flexibility while significantly simplifying terminal implementation and reducing power consumption
3Productivity
If free allocation of PUCCH and PUSCH is enabled, then resource utilization is improved, but control complexity for signal collision increases
Solution Approach 1:
The network side serves as an intermediary that enables free resource allocation while managing control complexity. It receives capability information from terminals, determines whether PUCCH and PUSCH signals collide in allocated resources, and makes scheduling decisions to prioritize one channel over the other. This intermediary approach maintains high resource utilization while concentrating control complexity in the network side rather than distributing it to multiple terminals
Data Source
AI summary
A terminal includes: a transmission unit configured to transmit uplink information to a base station; and a control unit configured to control the uplink information to be transmitted by an upper layer via an uplink shared channel.