Multi-Beam Page Indication for Early UE Paging Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In wireless communication systems, particularly in the context of 5G New Radio (NR), there is a challenge in efficiently managing power consumption during idle or inactive states, specifically in determining whether a user equipment (UE) is paged before the next paging occasion, which affects battery life and overall system efficiency.
Innovation Solution
The UE receives a page indication (PI) with repetitions on multiple beams before the next paging occasion, allowing for early decoding to determine if it is paged, thereby reducing unnecessary power consumption and improving power management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the UE waits until the next paging occasion to check for pages, then the UE can maintain simple paging monitoring, but the UE cannot determine paging status early enough to save power
Solution Approach 1:
The base station transmits the page indication signal before the actual paging occasion, allowing the UE to decode and determine paging status in advance. This preliminary transmission enables the UE to save power by knowing beforehand whether it needs to remain active or can enter idle state, directly resolving the contradiction between early power saving and timely paging detection.
2Use of energy by moving object
If the base station transmits page indication before paging occasion, then the UE can save power by decoding early, but the UE must receive and decode repetitions on multiple beams which increases complexity
Solution Approach 1:
The page indication signal is transmitted through multiple beam repetitions, with each beam carrying a portion of the signaling information. The UE receives and decodes these segmented repetitions across different beams, which distributes the reception complexity across multiple simpler signal paths rather than requiring a single complex high-gain beam, thus managing the complexity while enabling early power saving.
3Use of energy by moving object
If the UE decodes page indication early, then power savings are achieved, but the UE must accurately determine whether it is paged to avoid unnecessary wake-ups
Solution Approach 1:
The base station provides feedback through the page indication signal that clearly indicates whether the UE is paged or not. This explicit feedback mechanism ensures that the UE can accurately determine its paging status without ambiguity, preventing false wake-ups or missed pages, thus maintaining high reliability while achieving power savings through early decoding.
Data Source
Figure 1
Figure 2A
Figure 2B
AI summary
Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) receives, from a base station, before a next paging occasion (PO) of a paging cycle, a page indication (PI) in a first PI location associated with the next PO, wherein the PI comprises at least one repetition of a plurality of repetitions of the PI transmitted in the first PI location on each of a plurality of beams, and decodes the PI to determine whether or not the UE is paged in the next PO.