Adaptive Timer Configuration for Wireless RRC Connection Power Saving
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Traditional wireless communication systems face challenges in establishing and modifying RRC connections efficiently, especially in power-saving base stations where variable broadcast information transmission affects the predictability of connection delays, leading to potential service interruptions and communication failures.
Innovation Solution
A method involving the configuration of timers based on adaptive determination of broadcast information from cells, where the start of the timer is delayed when the cell is in a power-saving state, ensuring timely and reliable RRC connection establishment and modification by using physical-layer signals to wake up the cell and manage timer expiration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the base station uses power-saving techniques to reduce transmit power, then energy consumption is reduced, but the transmission period of broadcast information becomes variable and unpredictable, making it difficult to predict the delay for establishing RRC connection
Solution Approach 1:
The UE performs preliminary actions by measuring broadcast information quality before accessing the cell. The UE measures the broadcast information multiple times to evaluate cell quality and determines whether to access the cell in advance, before the actual connection establishment is needed. This preliminary measurement and evaluation allows the UE to predict connection delay and configure timers appropriately.
Solution Approach 2:
The patent introduces dynamic timer configuration where the timer value is not fixed but adapts based on measured broadcast information quality and cell state. The UE dynamically adjusts the timer value according to the variability in broadcast information transmission caused by power-saving techniques, allowing the system to adapt to changing network conditions while maintaining reliable connection establishment.
2Measurement precision
If the UE measures broadcast information multiple times to assess cell quality, then the accuracy of cell quality assessment is improved, but the time required for cell access increases
Solution Approach 1:
The UE performs partial measurements of broadcast information rather than continuous or exhaustive measurements. By measuring broadcast information multiple times but stopping after a certain threshold is met, the UE achieves sufficient accuracy for cell quality assessment without excessive time consumption. The patent balances measurement depth with time efficiency.
Solution Approach 2:
The UE uses feedback from multiple broadcast information measurements to dynamically adjust its access strategy. Based on the measured quality and variability of broadcast information, the UE determines whether to proceed with cell access and configures appropriate timers, creating a feedback-driven approach that optimizes both measurement accuracy and access time.
3Device complexity
If the timer is set with a fixed value to simplify configuration, then device complexity is reduced, but the system cannot adapt to variable broadcast information transmission periods in power-saving mode
Solution Approach 1:
The patent changes the parameter of timer value from fixed to variable based on measured broadcast information quality. The UE calculates and configures different timer values depending on the variability and quality of broadcast information transmission, allowing the system to adapt to power-saving mode conditions while maintaining manageable complexity through formula-based calculation.
Solution Approach 2:
The UE performs self-service by autonomously measuring broadcast information, evaluating cell quality, and determining appropriate timer values without requiring complex network configuration or manual setup. The UE independently adapts the timer configuration based on its own measurements, reducing overall system complexity while achieving adaptability.
Data Source
AI summary
The present application discloses a method and device for wireless communications, comprising receiving a first signaling, the first signaling being used to configure a value of a first timer; transmitting a first signal; accompanying the first signal, starting the first timer; herein, the first signal is used for an RRC connection; the RRC connection is related to a first cell; compared to the first cell being in first state, when the first cell is in second state, a start of the first timer is later; broadcast information transmitted by the first cell in the first state is more than broadcast information transmitted in the second state. The present application can better save power through an indication of a first signaling and a first signal.