Paging Response Using Pre-Allocated Resources in 5G
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Solution Overview
Problem
In 5G wireless communication systems, user equipment (UE) faces challenges in responding to paging messages as it is unclear how to transmit response messages without pre-allocated resources, especially when in RRC_IDLE or RRC_INACTIVE states, leading to uncertainty in resource usage for downlink data transmission.
Innovation Solution
The method involves receiving a configuration of pre-allocated resources and specific information on resource types for response messages during paging occasions, allowing the UE to transmit responses on pre-allocated resources, thereby simplifying the activation process and ensuring proper resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the UE transmits response messages via RACH procedure without pre-allocated resources, then the UE can respond to paging in idle or inactive states, but the resource usage becomes uncertain and the activation process becomes complex
Solution Approach 1:
The network pre-allocates uplink resources (configured grants) to the UE before the UE needs to transmit a response message. This preliminary allocation eliminates the need for complex runtime resource selection and simplifies the response transmission process while ensuring resources are available when needed.
Solution Approach 2:
The patent introduces an intermediary mechanism where the network provides indication information through paging messages to activate pre-configured resources. This intermediary signaling layer bridges the gap between having pre-configured resources and actually using them, simplifying the overall resource management while maintaining flexibility.
2Device complexity
If the UE uses pre-allocated resources for response transmission, then the resource usage becomes确定的 and activation is simplified, but the UE needs to receive and process additional paging information
Solution Approach 1:
The patent merges the paging function with the resource activation function. The paging message not only notifies the UE of incoming data but also simultaneously activates the pre-configured uplink resources by including indication information. This combination eliminates the need for separate signaling and reduces overall information processing complexity.
3Use of energy by moving object
If the UE is in RRC_IDLE or RRC_INACTIVE state, then power consumption is minimized and resource costs are reduced, but the UE cannot establish quick data transmission
Solution Approach 1:
The network pre-configures uplink resources and stores them in the UE while the UE remains in idle or inactive states. When data transmission is needed, the pre-configured resources can be quickly activated without requiring full RRC connection establishment, enabling fast data transmission while maintaining low power consumption during idle periods.
Solution Approach 2:
The patent creates a dynamic system where the UE can switch between low-power idle/inactive states and active data transmission states. The pre-configured resources remain dormant during idle periods (saving power) but can be rapidly activated when needed (enabling fast transmission), providing dynamic adaptability between power efficiency and transmission speed.
Data Source
AI summary
Provided are a method for responding to a paging. According to an embodiment of the present disclosure, the method includes receiving a configuration of a pre-allocated resource, receiving, in a paging occasion, information on type of resource for a response message, transmitting the response message on the pre-allocated resource, based on that the information informs the pre-allocated resource.