Group WUS Configuration for eDRX and DRX UEs
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Solution Overview
Problem
Current wireless communication systems face inefficiencies in grouping wake-up signals (WUS) according to user equipment (UE) groups, particularly in consideration of extended discontinuous reception (eDRX) capabilities and characteristics, leading to suboptimal resource allocation and increased power consumption.
Innovation Solution
A method and apparatus for transmitting wake-up signals (WUS) in a wireless communication system, where a group WUS configuration is set for each UE group, differentiated into first and second configurations for eDRX and discontinuous reception (DRX), respectively, with specific allocation information in time, frequency, or code domains, and signaled based on UE gap capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a single WUS configuration is used for all UE groups, then device complexity is reduced, but power consumption increases due to inefficient resource allocation
Solution Approach 1:
The patent segments UE groups into different categories (e.g., eDRX-capable UEs, non-eDRX UEs, UEs with different gap capabilities) and assigns distinct WUS configurations to each segment. This segmentation enables targeted resource allocation where each UE group receives optimized WUS parameters matching their specific capabilities, reducing unnecessary power consumption while maintaining manageable configuration complexity through structured grouping.
Solution Approach 2:
The patent applies local quality by tailoring WUS configuration parameters (such as time gap values, frequency resources, and coding schemes) to the specific characteristics of each UE group. For example, eDRX-capable UEs receive configurations optimized for extended idle periods, while UEs with limited gap capability receive configurations with appropriate time gaps. This localized optimization reduces power consumption for each group without requiring a single complex universal configuration.
2Productivity
If WUS resources are allocated without considering UE gap capability, then resource allocation is simplified, but system performance deteriorates due to suboptimal configuration
Solution Approach 1:
The patent introduces dynamic configuration selection where the network can adaptively choose appropriate WUS configurations based on UE gap capability reporting. UEs report their gap capability, and the network dynamically assigns configurations from a set of predefined options (e.g., different time gap values). This dynamic approach enables the system to optimize performance for each UE's actual capabilities while maintaining a finite set of configurable parameters to manage complexity.
Solution Approach 2:
The patent utilizes parameter changes by defining multiple WUS configuration variants with different key parameters (time gap values, frequency offsets, coding rates) that can be selected based on UE gap capability. Instead of creating entirely separate configuration systems, the patent modifies specific parameters within a unified configuration framework, allowing performance optimization through parameter adjustment while controlling overall configuration complexity through parameterized design.
3Productivity
If separate WUS configurations are created for eDRX and DRX, then resource allocation efficiency improves, but device complexity increases
Solution Approach 1:
The patent implements universality by designing a configurable WUS framework that can serve multiple UE types (eDRX and non-eDRX) through a unified configuration mechanism. Rather than creating entirely separate WUS systems, the patent uses a universal configuration structure with selectable parameters that adapt to different UE categories. This multi-functional approach enables efficient resource allocation for both eDRX and DRX UEs while managing complexity through a single configurable system.
Solution Approach 2:
The patent applies preliminary action by pre-defining a set of standardized WUS configuration templates tailored for different UE categories (eDRX-capable, non-eDRX, different gap capabilities). These pre-configured templates contain optimized parameters for specific UE types. When a UE joins the network, the appropriate pre-configured template is selected and applied, enabling efficient resource allocation without requiring complex real-time configuration generation, thus balancing efficiency gains with manageable complexity.
Data Source
AI summary
Disclosed are a method for transmitting a wake up signal (WUS) by a communication device in a wireless communication system, and a device therefor, according to various embodiments. Disclosed are a method for transmitting a WUS by a communication device, and a device therefor, the method comprising the steps for: setting a group WUS configuration related to the setting of a WUS resource for each UE group; transmitting the set group WUS configuration; and transmitting a WUS on the basis of the group WUS configuration, wherein the group WUS configuration is divided into a second WUS configuration for discontinuous reception (DRX) and a first WUS configuration for eDRX.