NR Paging Response Resource Selection Beyond SDT Resources
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Solution Overview
Problem
In the 3GPP NR protocol, the determination of resources for responding to paging messages in the RRC_inactive state for small data transmission (SDT) is not clearly defined, leading to potential resource wastage and limitations in scenarios where SDT resources are not configured.
Innovation Solution
A method and device for transmitting and receiving paging response messages on resources other than SDT resources, utilizing second indication information and preset conditions to determine the appropriate resource for paging responses, thereby optimizing resource usage and enabling responses even in scenarios without configured SDT resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If paging response is transmitted on SDT resource, then small data transmission can be performed in RRC_inactive state, but resource wastage occurs when SDT resources are not configured or when paging response should not use SDT resources
Solution Approach 1:
The patent implements dynamic resource selection for paging responses by introducing indication information that dynamically directs the terminal to choose between SDT resources and non-SDT resources based on current network conditions and configuration, rather than using a fixed resource allocation method
Solution Approach 2:
The patent changes the parameter of resource selection by introducing indication information that modifies the terminal's behavior - when the indication information is present, the terminal uses non-SDT resources; when absent, the terminal uses SDT resources. This parameter change enables flexible adaptation to different scenarios
2Productivity
If paging response is transmitted on non-SDT resource, then resource usage is optimized, but SDT functionality is limited when SDT resources are not configured
Solution Approach 1:
The patent creates a universal paging response mechanism that works in both SDT and non-SDT scenarios by using indication information to route to appropriate resources. The system becomes multi-functional, supporting both SDT resource-based responses and non-SDT resource-based responses through the same paging procedure
3Adaptability or versatility
If SDT resources are configured, then small data transmission is enabled, but resource allocation complexity increases
Solution Approach 1:
The patent extracts the resource selection decision from the terminal device by introducing indication information transmitted by the network. This removes the complexity of resource selection logic from the terminal, as the terminal simply follows the indication rather than independently determining which resource type to use
Data Source
AI summary
A paging response method and a communication device are provided. The method includes receiving a paging message, where the paging message contains first indication information, and the first indication information indicates mobile terminated-small data transmission (MT-SDT); and transmitting a paging response message on a resource other than an SDT resource.