Random Access Reporting for Reestablishment in 5G NR

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Current random access reporting in wireless communications, particularly in 5G NR, does not effectively differentiate between successful and unsuccessful reestablishment procedures, hindering network optimization and resource management.

Innovation Solution

User equipment (UE) reports specific information on reestablishment success, including cell identifiers, radio measurements, and chronological beam usage, to distinguish between successful and unsuccessful reestablishment events, which are then transmitted to the network for optimized resource configuration and scheduling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If random access reporting in 5G NR follows LTE specifications without differentiation, then system compatibility is maintained, but network optimization capability deteriorates due to inability to distinguish successful and unsuccessful reestablishment procedures

Engineering Contradiction:
Improvenetwork optimization capabilityVSAvoidreporting mechanism complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent segments the random access reporting mechanism by creating distinct report types: one for successful reestablishment procedures and another for unsuccessful attempts. This segmentation allows the network to receive differentiated information about reestablishment outcomes, enabling targeted optimization without requiring complete redesign of the reporting framework.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces specific parameter changes to existing random access reports, such as adding failure indicators, cell identity fields, and beam failure information to unsuccessful reestablishment reports. These parameter modifications enable the network to distinguish between successful and unsuccessful procedures while maintaining compatibility with existing reporting structures.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If detailed reestablishment information is reported to the network, then network optimization and resource management improve, but signaling overhead and processing burden increase

Engineering Contradiction:
Improveresource management efficiencyVSAvoidsignaling overhead
Core Design Contradiction:
ReliabilityVSQuantity of substance

Solution Approach 1:

The patent extracts only the essential information needed for network optimization from the reestablishment procedure, such as cell identity, beam failure indicators, and success/failure status. By taking out only these critical parameters rather than reporting all possible details, the patent reduces signaling overhead while maintaining sufficient information for effective resource management.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent applies partial action by reporting detailed information only when necessary (e.g., only reporting failure details when reestablishment fails), and using simplified reports for successful procedures. This selective reporting approach provides sufficient information for optimization without generating excessive signaling overhead in all cases.

Inventive Principle:
Principle #16Partial or excessive action

3Adaptability or versatility

If random access procedure triggers are expanded to cover more scenarios, then system adaptability improves, but procedure complexity and difficulty of management increase

Engineering Contradiction:
Improvereestablishment triggering scenariosVSAvoidprocedure management complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent creates a universal reporting mechanism that handles multiple reestablishment triggering scenarios through a unified framework. Whether the random access is triggered by beam failure, handover, or other conditions, the same reporting structure with differentiated parameters accommodates all scenarios, reducing the need for separate management procedures for each case.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

Instead of creating separate reporting mechanisms for each reestablishment scenario, the patent inverts the approach by using a single reporting mechanism with optional differentiated parameters. This inversion simplifies management by consolidating multiple scenario-handling approaches into one unified procedure.

Inventive Principle:
Principle #13The other way round (Inversion)

Data Source

PatentUS20230189374A1Random access reports for reestablishment
Publication Date: 2023.06.15 TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
  • US20230189374A1 patent drawing
  • US20230189374A1 patent drawing
  • US20230189374A1 patent drawing

AI summary

According to some embodiments, a method performed by a wireless device comprises: determining (612) the wireless device should perform a connection reestablishment procedure; performing (614) a random access procedure related to the connection reestablishment procedure; and determining (616) whether the reestablishment procedure was successful. When the reestablishment procedure is determined to be successful, the method comprises: storing (618) a first set of information related to the establishment procedure; storing (620) a second set of information related to the establishment procedure, different from the first set of information, irrespective of whether the reestablishment procedure is determined to be successful; and transmitting (622) one or more reports that include the first set of information and the second set of information to a network node.