PUR SS and Paging CSS Collision Handling by Adaptive Monitoring
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Solution Overview
Problem
Current wireless communication systems do not provide a solution for handling collisions between preconfigured uplink resources search space (PUR SS) and paging common search space (Paging CSS) in terminal devices operating in idle mode.
Innovation Solution
A method for a terminal device to determine, based on uplink data transmission status and DRX configuration, whether to preferentially monitor PUR SS or Paging CSS to avoid collisions and ensure timely reception of feedback or paging messages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal device monitors both PUR SS and Paging CSS simultaneously, then the terminal device can receive both uplink feedback and paging messages, but the terminal device cannot avoid collision between PUR SS and Paging CSS
Solution Approach 1:
The patent applies dynamics by making the monitoring behavior adaptive rather than static. The terminal device dynamically switches between monitoring PUR SS and Paging CSS based on real-time conditions (whether uplink data has been sent). This dynamic adjustment resolves the contradiction by allowing the system to achieve reliable reception of necessary messages while avoiding the complexity of simultaneous monitoring that causes collisions.
Solution Approach 2:
The patent applies preliminary action by having the terminal device determine in advance whether uplink data transmission has occurred before the collision point. Based on this preliminary determination, the terminal device pre-selects which search space to monitor (PUR SS if data sent, Paging CSS if not), thereby avoiding the collision issue before it arises and simplifying the monitoring process.
2Speed
If the terminal device preferentially monitors PUR SS, then the terminal device can receive uplink feedback timely, but the terminal device may miss paging messages
Solution Approach 1:
The patent resolves this contradiction through dynamic conditional monitoring. The terminal device monitors PUR SS preferentially only when uplink data has been transmitted (ensuring fast feedback reception), while switching to monitor Paging CSS preferentially when no uplink data has been sent (ensuring paging message reception). This dynamic behavior based on transmission state eliminates the trade-off.
Solution Approach 2:
The patent applies local quality by making the monitoring priority context-dependent rather than uniform. The 'quality' of monitoring (which search space to prioritize) varies locally based on the specific condition of whether uplink data was sent. This contextual differentiation allows the system to optimize for feedback speed when needed and paging reliability when needed, without the contradiction.
3Reliability
If the terminal device preferentially monitors Paging CSS, then the terminal device can receive paging messages timely, but the terminal device may miss uplink feedback
Solution Approach 1:
The patent resolves this contradiction through dynamic conditional monitoring. The terminal device monitors Paging CSS preferentially only when no uplink data has been transmitted (ensuring paging message reception), while switching to monitor PUR SS preferentially when uplink data has been sent (ensuring fast feedback reception). This dynamic adjustment based on transmission state eliminates the trade-off.
4Adaptability or versatility
If the terminal device monitors PUR SS and Paging CSS with the same priority, then the terminal device can treat both messages equally, but the terminal device cannot resolve the collision between PUR SS and Paging CSS
Solution Approach 1:
The patent applies preliminary action by having the terminal device determine in advance whether uplink data transmission has occurred before the collision point. Based on this preliminary determination, the terminal device pre-selects which search space to monitor (PUR SS if data sent, Paging CSS if not), thereby avoiding the collision issue before it arises and simplifying the monitoring process.
Solution Approach 2:
The patent applies dynamics by making the monitoring behavior adaptive rather than static. The terminal device dynamically switches between monitoring PUR SS and Paging CSS based on real-time conditions (whether uplink data has been sent). This dynamic adjustment resolves the contradiction by allowing the system to achieve reliable reception of necessary messages while avoiding the complexity of simultaneous monitoring that causes collisions.
Data Source
AI summary
A collision handling method and apparatus are provided. The method includes: a terminal device determines that PUR SS collides with Paging CSS; and the terminal device determines, based on a status of uplink data transmission in PUR associated with the PUR SS and/or a discontinuous reception DRX configuration status of the terminal device, to preferentially monitor the PUR SS or to preferentially monitor the Paging CSS. In the foregoing method, the terminal device determines, based on an actual situation, whether to preferentially monitor the PUR SS or preferentially monitor the paging CSS, so that when the terminal device is to preferentially monitor the PUR SS, the terminal device can receive a feedback of a network device for PUR transmission in time, and when the terminal device i to preferentially monitor the Paging CSS, it can be ensured that the terminal device can receive a paging message in time.