Paging Frame Adaptation Using UE Capability Signaling
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Solution Overview
Problem
In wireless communication networks, lower-tier network nodes lack the capability information to determine whether user equipment (UEs) support Rel-19 or Rel-18 paging frame configurations, leading to inefficient or ineffective paging operations due to uncertainty about UE capabilities.
Innovation Solution
Higher-tier network nodes provide UE capability information to lower-tier nodes, allowing them to adapt signaling by using appropriate paging frame configurations based on the UE's capabilities, such as Rel-19 or Rel-18 configurations, thereby ensuring that paging messages are transmitted only to capable UEs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If higher-tier network nodes provide UE capability information to lower-tier nodes, then paging operations become more efficient and reliable, but network signaling overhead increases
Solution Approach 1:
The higher-tier network node performs preliminary action by determining and storing UE capability information (Rel-19 or Rel-18 paging frame configuration support) before lower-tier nodes need to page the UE. This pre-determination allows lower-tier nodes to immediately use the capability information without additional signaling overhead when paging is needed, resolving the contradiction between reliability and signaling overhead.
2Productivity
If lower-tier network nodes transmit paging messages to all UEs regardless of capability, then paging coverage is maximized, but network resources and UE power are wasted on incapable UEs
Solution Approach 1:
The patent applies local quality by differentiating paging treatment based on individual UE capability. Lower-tier network nodes use the stored capability information to apply different paging strategies: UEs capable of Rel-19 configuration receive paging only in Rel-19 paging frames, while Rel-18 capable UEs receive paging in Rel-18 paging frames. This localized adaptation prevents energy waste on incapable UEs while maintaining productivity.
3Productivity
If lower-tier network nodes use uniform paging frame configuration for all UEs, then implementation is simplified, but paging efficiency decreases due to mismatched UE capabilities
Solution Approach 1:
The higher-tier network node performs preliminary determination of UE capability (Rel-19 or Rel-18 paging frame configuration support) and communicates this to lower-tier nodes before paging operations begin. This pre-established capability information allows lower-tier nodes to implement capability-matched paging without complex real-time detection, resolving the contradiction between paging efficiency and configuration complexity.
Data Source
AI summary
A method for wireless communication at a lower-tier network node includes receiving, from a higher-tier network node, a message indicating a paging request for a user equipment (UE) of a group of UEs served by the lower-tier network node and a paging capability of the UE, the paging capability being associated with either a first paging frame configuration that distributes one or more paging frames within a discontinuous reception (DRX) cycle, irrespective of a paging frame interval or a second paging frame configuration that uniformly distributes the one or more paging frames within the DRX cycle in accordance with the paging frame interval. The method also includes transmitting, to the UE in accordance with receiving the first message, one or more paging messages in accordance with the UE's paging capability. The method further includes receiving, from the UE, a paging response based on transmitting the one or more paging messages.