PRACH Trigger Signaling for Low-Power Non-Anchor Access
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Solution Overview
Problem
The high static power consumption of network devices in wireless communication networks, particularly due to continuous detection of random access request messages, is a significant challenge that affects energy efficiency.
Innovation Solution
A method where a terminal device sends indication information to a non-anchor network device when a trigger condition is met or a trigger indication is received, initiating PRACH reception, allowing the terminal device to send a random access request message through a non-anchor network device, thereby reducing unnecessary power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the network device continuously detects random access request messages to ensure user experience, then the reliability of random access is improved, but the static power consumption increases
Solution Approach 1:
The patent applies dynamics by transitioning the network device between active detection states and low-power states. The network device dynamically adjusts its operational state based on trigger conditions - remaining active when random access is needed and entering low-power mode when not required, thus resolving the contradiction between continuous detection reliability and power consumption.
Solution Approach 2:
The patent implements feedback mechanisms where the terminal device sends indication information to the network device to trigger PRACH reception. This feedback loop ensures the network device activates detection only when actually needed, balancing reliability requirements with power saving opportunities.
2Use of energy by stationary object
If the non-anchor network device enters low-power mode to reduce power consumption, then energy efficiency is improved, but the response time for random access increases
Solution Approach 1:
The patent applies preliminary action by having the terminal device send indication information in advance to the non-anchor network device before the actual random access request. This allows the network device to prepare and activate PRACH reception ahead of time, reducing the response time penalty when the terminal device needs to perform random access.
3Ease of operation
If the network device remains in working state to ensure user experience, then the service quality is improved, but the energy efficiency deteriorates
Solution Approach 1:
The patent applies local quality by differentiating the operational states of different network devices. The anchor network device maintains working state for continuous service, while non-anchor network devices can enter low-power modes when not required. This localized differentiation allows energy savings without compromising overall user experience.
Solution Approach 2:
The patent segments the network device functionality into anchor and non-anchor components with different power management strategies. The non-anchor network device is segmented from the anchor device, allowing independent power state control and enabling energy efficiency improvements without affecting the overall service quality provided by the anchor device.
Data Source
AI summary
A random access method and apparatus, and a computer-readable storage medium are provided. The random access method includes the following. when it is detected that a trigger condition is satisfied or a trigger indication is received, indication information is sent to a non-anchor network device; the indication information indicates that the non-anchor network device starts physical random access channel (PRACH) reception. A random access request message is sent to the non-anchor network device. By means of the solution, the static power consumption of the non-anchor network device can be effectively reduced.