PUR Validity Check for MT-EDT Power Reduction
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Solution Overview
Problem
Current wireless communication systems face inefficiencies in data transmission and power consumption, particularly in idle mode, due to the need for frequent reconfiguration of uplink resources and the lack of optimized procedures for Mobile-terminated Early Data Transmission (MT-EDT) in Evolved Universal Terrestrial Radio Access Network (E-UTRAN) systems.
Innovation Solution
The implementation of Preconfigured Uplink Resources (PUR) and the determination of their validity by User Equipment (UE) to decide on Random Access (RA) procedures or data transmission, allowing for efficient data transmission without releasing PUR configurations during MT-EDT, thereby reducing power consumption and signaling overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If Preconfigured Uplink Resources (PUR) are frequently reconfigured in idle mode, then data transmission adaptability is improved, but power consumption and signaling overhead increase
Solution Approach 1:
The patent applies preliminary action by pre-configuring uplink resources (PUR) for idle mode UEs in advance, so that when data transmission is needed, the UE can immediately use the pre-configured resources without waiting for dynamic allocation. This eliminates the need for frequent reconfiguration signaling and reduces power consumption while maintaining transmission adaptability.
Solution Approach 2:
The patent extracts the resource configuration function from the dynamic signaling process and separates it into a pre-configuration phase. By taking out the configuration overhead from the active transmission phase, the system reduces signaling overhead and power consumption while preserving the ability to adapt to different transmission needs through the pre-configured resource pool.
2Productivity
If PUR configurations are released during MT-EDT, then resource allocation efficiency is improved, but signaling overhead and processing complexity increase
Solution Approach 1:
The patent applies preliminary action by maintaining PUR configurations across MT-EDT events, so that the pre-configured resources remain available for subsequent transmissions. This eliminates the need for repeated configuration and release signaling, reducing signaling overhead and processing complexity while maintaining efficient resource allocation through the persistent pre-configured resource pool.
3Reliability
If traditional random access procedures are used for each data transmission, then connection reliability is improved, but transmission latency and power consumption increase
Solution Approach 1:
The patent applies preliminary action by pre-configuring uplink resources and maintaining PUR configurations across multiple transmission events. This allows UEs to skip the traditional random access procedure and directly use pre-configured resources for data transmission, significantly reducing transmission latency and power consumption while maintaining connection reliability through the established PUR framework.
Data Source
AI summary
A method and apparatus are disclosed. In an example from the perspective of a User Equipment (UE), the UE receives, from a network node, a paging message indicative of Mobile-terminated Early Data Transmission (MT-EDT). Responsive to receiving the paging message, the UE determines a validity of a timing parameter associated with one or more Preconfigured Uplink Resources (PUR). The UE determines, based on the validity, whether to initiate a Random Access (RA) procedure for MT-EDT or to initiate a transmission using the one or more PURs.