Paging DCI Early Indication for Low-Power UE Signal Reception
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Solution Overview
Problem
Existing wireless communication systems face inefficiencies in power consumption and signal processing during idle or inactive modes due to unnecessary detection of paging downlink control information (DCI), particularly in scenarios where multiple user equipment (UEs) share the same paging occasion (PO).
Innovation Solution
A method and apparatus for transmitting a specific signal, such as a physical downlink control channel (PDCCH), to indicate whether paging DCI is provided on a PO, allowing UEs to skip unnecessary detection procedures based on this early indication, and enabling UEs to determine their specific terminal group and PO information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a user equipment simultaneously performs channel estimation and signal decoding, then communication efficiency is improved, but processing delay increases
Solution Approach 1:
The patent divides the signal processing tasks into separate time slots: channel estimation is performed in a first time slot, and signal decoding is performed in a second time slot. This temporal segmentation allows the base station to complete estimation before decoding, reducing processing delay while maintaining efficiency through sequential execution.
Solution Approach 2:
The base station performs channel estimation as a preliminary action before signal decoding. By completing the estimation phase in advance (first time slot), the system prepares necessary information for subsequent decoding operations, thereby reducing overall processing delay while maintaining communication efficiency.
2Loss of time
If channel estimation is performed before signal decoding, then processing delay is reduced, but communication efficiency deteriorates
Solution Approach 1:
The patent segments the processing timeline into distinct phases: first time slot for channel estimation, second time slot for signal decoding. This segmentation enables the base station to perform estimation beforehand (reducing delay) while maintaining efficiency through structured, phased execution rather than simultaneous processing.
3Adaptability or versatility
If signal processing is performed at a higher layer, then processing flexibility is improved, but processing delay increases
Solution Approach 1:
The patent implements dynamic resource allocation where the base station can flexibly adjust time slot assignments and processing priorities based on channel conditions and traffic requirements. This dynamic adaptation at the MAC layer provides processing flexibility while managing delay through intelligent scheduling rather than fixed rigid processing sequences.
Data Source
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AI summary
A method for a terminal receiving a signal in a wireless communication system, according to one embodiment of the present invention, may comprise: receiving a specific signal giving an early indication of whether paging DCI will be provided in a PO configured for a paging operation in an idle mode or deactivation mode; and, on the basis of the specific signal, determining whether to skip a paging DCI detection procedure, wherein the specific signal may be a PDCCH signal carrying specific DCI configured for the idle mode or deactivation mode, and even if the specific DCI indicates that the paging DCI will be provided in at least one PO, on the basis that the specific DCI may be connected to a plurality of POs, a terminal may decide to skip the paging DCI detection procedure if the at least one PO in which the paging DCI is provided is not configured in the terminal.