# Comprehensive Summary: Considerations for ULBC Codec Selection Process

## Document Overview

This document appears to be a presentation or discussion paper related to ULBC (Uplink Broadcast) codec selection process. However, the provided content is fragmentary and contains mixed language elements (English and Chinese), making comprehensive technical analysis challenging.

## Main Technical Areas Identified

### 1. ULBC Codec Selection Process

The document's primary focus is on considerations for selecting codecs in the ULBC (Uplink Broadcast) context. However, specific technical criteria, evaluation methodologies, or selection parameters are not detailed in the provided content.

### 2. JPEG AI Integration

#### Overview
- The document references JPEG AI as a relevant technology
- JPEG AI appears to be considered as a potential codec or compression technology for the ULBC use case

#### Working Mechanism
- A section is dedicated to JPEG AI's working mechanism
- Specific technical details of the mechanism are not provided in the extracted content

#### Timeline
- Timeline considerations for JPEG AI are mentioned
- Specific milestones or deployment schedules are not detailed

### 3. Cross-Working Group Coordination

#### SA2 Related Work
- SA2 has related work in Release 18 (R18) and Release 19 (R19)
- **Key Issue Identified**: Lack of unified architecture design
- Requirements are coming from RAN but lack unified architectural framework
- Suggests fragmentation in approach across different scenarios

#### RAN Liaison Statements
- Latest LS (Liaison Statement) from RAN concerns model transmission
- Indicates coordination requirements between SA and RAN working groups

### 4. Architecture Considerations

#### Network Function Changes
- Reference to "NF变CN" (Network Function changes to Core Network)
- Suggests potential architectural modifications at the Core Network level
- Specific changes or proposals are not detailed in the provided content

## Open Questions

The document includes an "Open Questions" section, indicating ongoing discussions and unresolved technical issues. However, the specific questions are not provided in the extracted content.

## Technical Gaps in Provided Content

Due to the fragmentary nature of the document provided:
- Specific codec selection criteria are not detailed
- Technical evaluation parameters are missing
- Comparison methodologies between candidate codecs are not present
- Detailed architectural proposals are not included
- Specific agreements or decisions are not documented

## Observations

1. **Multi-Release Scope**: The work spans R18 and R19, indicating ongoing evolution
2. **Cross-WG Dependencies**: Clear dependencies between SA2 and RAN work
3. **Architecture Fragmentation**: Identified need for unified architecture design
4. **Emerging Technologies**: JPEG AI considered as potential solution
5. **Core Network Impact**: Potential changes to CN architecture implied

*Note: This summary is based on fragmentary content with significant portions in template format or non-English text. A complete technical analysis would require the full document with all technical details, agreements, and proposals.*