BWP Random Access Failure Reporting in NR Networks
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In New Radio (NR) communication systems, networks face challenges in determining the bandwidth part (BWP) on which a random access problem occurs, as current methods do not allow for accurate identification of BWP-related failures, leading to difficulties in reconfiguring random access parameters and troubleshooting.
Innovation Solution
The proposed solution involves a method where User Equipment (UE) determines and reports the BWP on which a random access problem occurs to the base station, allowing the base station to reconfigure random access parameters or report the issue to another data collection entity for analysis, thereby identifying the specific BWP affected.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the UE switches to an initial BWP for random access when no random access resource is available on the activated BWP, then the random access can be performed, but the network cannot determine which BWP the random access failure occurs on
Solution Approach 1:
The patent applies feedback by having the UE report the BWP indicator in the failure information to the network. This allows the network to receive feedback about which BWP the failure occurred on, enabling accurate identification and subsequent reconfiguration of random access parameters for the specific BWP.
Solution Approach 2:
The patent implements preliminary action by having the UE record and prepare failure information including the BWP indicator before actually reporting it to the network. This preliminary preparation ensures that when the failure is reported, the network already has the necessary information about which BWP was affected, enabling immediate appropriate response.
2Measurement precision
If the UE records and reports failure information including BWP indicator, then the network can identify the affected BWP, but the reporting process adds complexity to the failure handling procedure
Solution Approach 1:
The patent merges the BWP indicator reporting with the existing failure information reporting mechanism. Instead of creating a separate complex reporting system, the BWP indicator is integrated into the existing failure information structure (such as RLF indication or SCG failure information), thereby achieving precise BWP identification without significantly increasing procedural complexity.
Solution Approach 2:
The patent makes the failure information reporting mechanism universal by having it serve multiple functions: indicating random access failure occurrence, identifying the affected BWP through the BWP indicator, and enabling network reconfiguration. This multi-functionality reduces the need for separate dedicated reporting mechanisms for BWP identification.
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The present disclosure relates to an information reporting method and apparatus, a bandwidth part (BWP) based operating method and apparatus, user equipment, a base station and a computer readable storage medium. The information reporting method includes: determining that a random access problem occurs; and reporting, to a base station, a BWP on which the random access problem occurs. According to examples of the present disclosure, by determining that the random access problem occurs and reporting the BWP on which the random access problem occurs to the base station, the base station may determine the BWP on which the random access problem occurs.