UE Channel Access Priority Handling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
User equipment (UE) faces challenges in handling ongoing channel access procedures due to lack of guidance on how to manage multiple channel access notifications from the network, as only one channel access procedure is allowed at a time.
Innovation Solution
A communication device and method that utilize a processing circuit to receive Physical Downlink Control Channel (PDCCH) signals indicating channel access procedures and their priority classes, allowing the UE to continue or terminate ongoing procedures based on comparisons of these priority classes, ensuring proper handling of channel access procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the UE receives multiple PDCCH signals indicating different channel access procedures, then the network can schedule multiple channel access procedures, but the UE does not know how to handle the ongoing channel access procedure
Solution Approach 1:
The patent introduces a priority class parameter associated with each channel access procedure to differentiate and manage multiple procedures. By comparing priority class values, the UE can determine which procedure to continue or switch to, resolving the ambiguity of handling multiple ongoing procedures
2Ease of operation
If only one channel access procedure is allowed to be performed, then the procedure management is simple, but the UE cannot handle multiple channel access notifications from the network
Solution Approach 1:
The patent maintains simplicity by still allowing only one procedure execution at a time, but introduces priority class parameters that enable the UE to handle multiple notifications gracefully by selecting the highest priority procedure to execute
3Reliability
If the UE continues the ongoing channel access procedure, then the current procedure is completed, but the newly received channel access procedure may be delayed
Solution Approach 1:
The patent uses priority class comparison to make scheduling decisions. When a new PDCCH signal arrives, the UE compares its priority class with the ongoing procedure's priority class. If the new procedure has higher priority, the UE switches to it; otherwise, the UE continues the ongoing procedure, thus optimizing time utilization based on priority
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A communication device of handling channel access procedures comprises a storage device storing instructions and a processing circuit coupled to the storage device. The processing circuit is configured to execute the instructions stored in the storage device. The instructions comprise receiving a first Physical Downlink Control Channel (PDCCH) signal indicating a first channel access procedure and a first priority class of the first channel access procedure from a network; performing the first channel access procedure with the network, after receiving the first PDCCH signal; receiving a second PDCCH signal indicating a second channel access procedure and a second priority class of the second channel access procedure from the network; and determining to continue or terminate the first channel access procedure with the network according to a comparison of the first priority class and the second priority class, after receiving the second PDCCH signal.