Group Paging Wireless Devices Power Save Mode
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing communication systems face challenges in efficiently paging wireless devices with long sleep times, leading to increased latency and power consumption.
Innovation Solution
A method and system where wireless devices form a group with a collectively determined power save mode configuration, allowing them to take turns waking up to check for messages from the network node, thereby reducing overlap in wake-up occasions and optimizing power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If long Discontinuous Reception (DRX) cycles or power save mode (PSM) are used to extend battery life, then power consumption is reduced and battery life is extended, but the latency to page a UE increases considerably
Solution Approach 1:
The network is divided into a long-range network for paging control and a short-range network for data transmission. The UE segments its operation into sleep periods (long-range) and active periods (short-range), allowing it to extend battery life while maintaining responsive communication through the short-range interface.
Solution Approach 2:
Another UE in the short-range network acts as an intermediary to forward paging messages to the target UE during its sleep periods. This intermediary UE receives paging from the long-range network and relays it through the short-range connection, reducing latency without requiring the target UE to wake up frequently.
2Duration of action of moving object
If UEs check for paging seldom to save power, then battery life is extended, but the resolution in time of data collected from UEs is low
Solution Approach 1:
The short-range connection maintains continuous or frequent communication between UEs in the group, ensuring that data can be transmitted and received promptly when needed. This continuity compensates for the infrequent long-range paging checks, maintaining high data resolution while preserving battery life.
Solution Approach 2:
UEs in the group serve each other by forwarding paging and data messages through the short-range connection. This peer-to-peer messaging mechanism allows the group to maintain high responsiveness without requiring each UE to frequently activate its long-range communication interface.
3Loss of energy
If UEs transmit data seldom to save power and network resources, then energy consumption is reduced, but the capacity and performance of the communication network deteriorates
Solution Approach 1:
The system adds a spatial dimension by introducing short-range connections between UEs, creating a multi-dimensional communication architecture. Data can be transmitted through the short-range dimension (peer-to-peer) or the long-range dimension (network), allowing frequent data exchange without proportionally increasing energy consumption of the long-range interface.
Solution Approach 2:
The system merges long-range and short-range communication networks into a unified architecture. The long-range network handles control and paging functions, while the short-range network handles data transmission, allowing the system to leverage both networks' strengths to improve capacity without proportionally increasing energy consumption.
Data Source
Figure 1~8
Figure 2
Figure 2
AI summary
A method for handling paging from a node is performed by a wireless device. The wireless device is part of a group of wireless devices communicating with each other over a short-range connection and communicating with a node over a long-range wireless connection at respective predefined occasions. The predefined occasions are defined by a power save mode configuration collectively determined for the group of wireless devices. The paging, when received during the predefined occasions for the wireless device, is received from the node. The method further comprises transmitting, when the paging is targeted for the wireless device itself, a paging response towards the node.