Discontinuous Reception Logic Time Cycle Alignment
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Solution Overview
Problem
In direct communication, the mismatch between discontinuous reception cycles and resource reservation leads to resources being misaligned between absolute time and logic time, causing resource reservation to gradually move out of the intended time range.
Innovation Solution
Converting absolute or physical time cycles into logic time cycles, allowing for better matching between discontinuous reception cycles and resource reservation without the need for mapping between absolute and logic time, thereby determining the active state of discontinuous reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If mapping between absolute time and logic time is performed for resource reservation, then resource reservation can be aligned with direct transmission time frequency resources, but discontinuous reception cycles become misaligned between absolute time and logic time, causing resources to gradually move out of the intended time range
Solution Approach 1:
The patent changes the time cycle parameter from absolute time cycle to logic time cycle for discontinuous reception. By configuring the DRX cycle in logic time units rather than absolute time units, the system ensures that the DRX active state moments align with the logic time based resource reservation, preventing the gradual misalignment that occurs when using absolute time mapping.
2Loss of time
If absolute time cycle is used for discontinuous reception configuration, then resource reservation in absolute time can be aligned, but the mismatch with logic time causes resource reservation to move out of intended time range
Solution Approach 1:
The patent changes the DRX time cycle parameter from absolute time domain to logic time domain. The network device configures the DRX cycle using logic time units (e.g., number of slots or subframes in logic time), which directly corresponds to the resource reservation timing in logic time, thereby maintaining precise resource allocation without time loss or misalignment.
Data Source
AI summary
A discontinuous reception method includes: obtaining an absolute time cycle or a physical time cycle in direct communication discontinuous reception configuration parameters; converting the absolute time cycle or the physical time cycle into a logic time cycle, the logic time cycle being a first number of logic time units; and determining, according to the logic time cycle, a moment at which discontinuous reception enters an active state.