Policy and Regulatory Basis Q&A for Communication Towers and Infrastructure: Document Parsing and Chunking

Policy and Regulatory Basis Q&A for Communication Towers and Infrastructure: Document Parsing and Chunking

What this category of data looks like

Reference only; verify against the target FastGPT release and deployment documentation.

What constraints do these characteristics impose on the "document parsing and chunking" step

The clause numbering system requires that chunking does not break continuous policy clauses, otherwise context association during retrieval will be affected. Metadata such as effective date and implementation scope must be retained with each chunk, otherwise accurate matching of policy applicable scenarios will not be possible. Quantifiable construction indicators are bound to their corresponding applicable scenarios; splitting them will lead to loss of indicator meaning. Some documents contain long sections of compliance requirements, so an appropriate chunk length must be selected to avoid truncating core content. PDF documents with digital signatures may have their metadata ignored by the default parsing engine, requiring additional configuration for adaptation.

How to set configurations

Configuration ItemRecommended ValueRationale
chunkSize800–1200 charactersAdapts to the typical length of policy clauses and quantifiable indicators in documents, avoiding splitting core compliance requirements
chunkSplitterSplit by title + paragraphAdapts to the document's structure of policy numbers and clause numbers, retaining the association between clauses and their corresponding metadata
customPdfParseEnabledAdapts to PDF documents with digital signatures, fixing the issue where the default parsing engine cannot recognize metadata in signed documents
PARSE_FILE_TIMEOUT_SECONDS120 secondsAddresses parsing time for long compliance documents, preventing task interruption mid-process
UPLOAD_FILE_MAX_SIZE1000 MBAllows uploading large industry standard PDF files, covering complete sets of compliance documents
chunkSettingModeManual configurationAdjust parameters for the document structure of specific categories to match the special format of industry documents

Three common errors

  • Phenomenon: After uploading a signed policy PDF, the parsed result is missing policy document numbers or core clause content. Cause: The customPdfParse configuration is not enabled, and the default parsing engine cannot recognize metadata in signed PDFs.
  • Phenomenon: A parsing timeout error is triggered after uploading a large industry standard compliance document. Cause: The value set for PARSE_FILE_TIMEOUT_SECONDS is lower than the actual time required for document parsing.
  • Phenomenon: Chunked content splits policy document numbers and their corresponding clauses, making it impossible to associate complete policy requirements during retrieval. Cause: The chunkSplitter configuration is set to split by character, without adapting to the document's title hierarchy structure.

How to confirm the configuration is correct

  • Upload a single signed policy PDF, check if the parsed result includes complete policy document numbers, effective dates, and clause content.
  • Upload a preset large industry standard document, confirm that the parsing task completes within the time set by PARSE_FILE_TIMEOUT_SECONDS.
  • Randomly sample parsed chunked content, check that the association between policy clauses and their corresponding document numbers is retained.
  • Perform a policy retrieval test, verify that complete context of corresponding policy clauses can be accurately recalled.

The values provided are common starting points and should be measured against the reader's own samples.

Question material comes from public community discussions. Configuration values are common starting points and should be measured against your own samples. Verified on 2026-09-28.