Wireless Access Restriction Signaling for RRC Retry Suppression
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
During RRC connection establishment, if network slicing is not supported by the current cell, the terminal device continues to attempt access in the same area or frequency point, leading to unnecessary behavior overhead and high power consumption.
Innovation Solution
The network device sends first indication information to the terminal device, including wait time, applicable scope, and common use indication to prevent access attempts or camping, allowing the terminal device to learn the range where access is not allowed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal device continues to attempt access in the current cell after receiving RRC release message, then the terminal device may eventually succeed in connecting, but this causes unnecessary behavior overhead and high power consumption
Solution Approach 1:
The network device performs preliminary action by sending the first indication information before the terminal device attempts access, informing the terminal device in advance about the notAllowedTrackingAreaList. This allows the terminal device to avoid unnecessary access attempts in advance, thereby reducing power consumption while ensuring connection establishment can proceed when appropriate.
2Device complexity
If the network device sends RRC release message with only current cell indication, then the message is simple, but the terminal device may make another access attempt in the same area or frequency point causing constant connection establishment triggers
Solution Approach 1:
The network device segments the indication by providing both current cell identification and the notAllowedTrackingAreaList (which contains multiple tracking area codes). This segmentation allows the terminal device to distinguish between the current cell and other cells in the same area/frequency point that should also be avoided, preventing repeated access attempts without significantly increasing message complexity.
3Use of energy by moving object
If the terminal device avoids access in the current cell based on RRC release message, then unnecessary access attempts are reduced, but the terminal device cannot learn about other cells in the same area where access should also be avoided
Solution Approach 1:
The notAllowedTrackingAreaList serves multiple functions: it identifies tracking areas where access should be avoided, provides broader coverage than just the current cell, and works universally across different cells within the same tracking area. This multi-functionality ensures that the terminal device can avoid unnecessary access attempts across the entire tracking area, not just the current cell, thereby reducing power consumption comprehensively.
Data Source
AI summary
Embodiments of the present disclosure provide a wireless communication method, a terminal device, and a network device, which are applied in a field of communication technology. The embodiments of the present disclosure include: receiving a first indication information sent by a network device, where the first indication information is used to prevent a terminal device from an access attempt or camping, and the first indication information includes at least one of following information: wait time information, applicable range information, and a common use indication.