User Apparatus Channel Collision Resolution via Ordered Processing Rules
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Solution Overview
Problem
In NR wireless communication systems, managing channel collisions between different service types such as eMBB and URLLC, as well as collisions between channels with the same service type, is challenging due to varying requirements like high speed, low latency, and reliability, which affects communication control and transmission efficiency.
Innovation Solution
A user apparatus with a control unit that applies specific processing rules to determine transmission candidates by dropping or multiplexing channels, repeating the process until no channel collisions are detected in the time domain, ensuring no collisions occur between channels associated with different or same service types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multiple channels with different service types (eMBB and URLLC) are transmitted simultaneously, then communication capacity and service diversity are improved, but channel collisions occur causing transmission reliability to deteriorate
Solution Approach 1:
The patent segments the channel collision resolution process into multiple processing rules applied in a specific order. Different channel types (eMBB and URLLC) are handled through segmented processing stages: first applying processing rules for channels of the same service type, then applying processing rules for channels of different service types, and repeating until no collisions remain. This segmentation allows simultaneous transmission of multiple channel types while resolving collisions systematically.
Solution Approach 2:
The patent applies processing rules in advance to prevent channel collisions before transmission. By systematically applying processing rules to determine transmission candidates and resolve collisions beforehand, the system ensures that only non-colliding channels are transmitted, thereby maintaining transmission reliability while preserving communication capacity.
2Reliability
If channel collision resolution processing is applied to ensure transmission reliability, then transmission reliability is improved, but processing complexity and time consumption increase
Solution Approach 1:
The processing complexity is reduced by segmenting the collision resolution into ordered processing rules. The control unit applies processing rules for channels of the same service type first, then applies processing rules for channels of different service types, and repeats this process until no collisions remain. This segmentation makes the complex resolution process more manageable and efficient.
Solution Approach 2:
By applying processing rules in advance to determine transmission candidates and resolve all collisions before transmission, the system eliminates the need for complex real-time collision handling during transmission. This preliminary resolution simplifies the overall processing while ensuring reliable transmission.
3Loss of time
If channel collision resolution is performed to reduce transmission delays, then latency is improved, but processing overhead increases
Solution Approach 1:
The patent segments collision resolution into specific ordered processing rules that efficiently handle different channel types. By applying processing rules for same-service-type channels first, then different-service-type channels, and repeating until resolution, the system minimizes processing iterations and reduces overall processing overhead while achieving low latency.
Solution Approach 2:
By performing collision resolution in advance before transmission, the system eliminates retransmission delays and ensures that only non-colliding channels are transmitted. This preliminary action reduces transmission latency despite the processing overhead, as it prevents time-consuming retransmissions.
Data Source
AI summary
A user apparatus includes, a control unit configured to apply in a specific order a plurality of processing rules for determining a channel as a transmission candidate by dropping a channel or multiplexing channels and repeat the application until detecting no channel collision in a time domain, in a case where a channel associated with a first service type and a channel associated with a second service type collide with each other at least in a time domain, and for at least one of the channel associated with the first service type and the channel associated with the second service type, a plurality of channels associated with a same service type collide with each other at least in the time domain; and a transmitting unit configured to transmit, to a base station apparatus, the channel as the transmission candidate for which no channel collision is detected in the time domain.