Configurable SSB Periodicity for Network Energy Saving
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Solution Overview
Problem
As the number of services/user equipments (UEs) that a network needs to support increases rapidly, there is a growing need for power saving in UEs and energy saving in the network.
Innovation Solution
A method for a user equipment (UE) to monitor a common downlink signal of a first cell in a first mode with a first periodicity, receive a configuration for a second mode that includes information about a time period and cell information for a second cell associated with the first cell, and then transition to the second mode to monitor the common downlink signal on the second cell within a specified time period.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If common downlink signals are transmitted with high periodicity to ensure reliable UE reception, then network coverage and signal reliability are improved, but network energy consumption increases
Solution Approach 1:
The patent applies dynamics by making the SSB transmission periodicity configurable and adaptable. The network can dynamically adjust the periodicity between 5ms and 80ms based on actual network conditions and UE requirements, transforming the static transmission scheme into a flexible one that balances reliability and energy consumption
Solution Approach 2:
The patent changes the transmission parameter (periodicity) of common downlink signals to resolve the contradiction. By adjusting the periodicity parameter within a configurable range, the system can reduce transmission frequency to save energy while maintaining sufficient signal reliability for UE operation
2Reliability
If common downlink signals are transmitted with high periodicity to ensure network coverage, then signal availability is improved, but UE power consumption increases
Solution Approach 1:
The patent enables dynamic adaptation of SSB periodicity that benefits both network and UE. UEs can be configured with appropriate periodicity values matching their operational needs, allowing them to wake up less frequently for signal monitoring, thus reducing UE power consumption while maintaining signal availability
Solution Approach 2:
The patent changes the temporal parameter (periodicity) of signal transmission to reduce UE power consumption. By optimizing this parameter, UEs can achieve sufficient signal availability with reduced monitoring frequency, directly lowering their power consumption
3Use of energy by stationary object
If transmission of common signals and channels is reduced to save network energy, then network energy consumption is reduced, but signal coverage and reception quality may deteriorate
Solution Approach 1:
The patent applies dynamics by enabling flexible adjustment of SSB periodicity within a wide range (5ms to 80ms). This allows the system to dynamically optimize transmission frequency based on actual requirements, reducing energy consumption while maintaining sufficient reception quality through configurable parameters
Solution Approach 2:
The patent changes the transmission periodicity parameter to resolve the contradiction between energy saving and reception quality. By optimizing this parameter, the system achieves energy reduction without compromising signal quality below acceptable thresholds
Data Source
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AI summary
A common downlink signal of a first cell may be transmitted/monitored on the first cell in a first mode with a first periodicity. A configuration related to a second mode including cell information regarding a second cell associated with the first cell may be provided. Based on transition from the first mode to the second mode, the common downlink signal of the first cell may be transmitted/monitored on the second cell within a first time period.