LJP · ASSET GROUP
NTN & Space Network Infrastructure · Technical Reference

Transparent Payload

Which functions remain on the platform and which remain on the ground in a transparent payload architecture?

A transparent payload relays the radio path between a user-side service link and a gateway-side feeder link without placing the principal base-station processing functions on the airborne or spaceborne platform. Ground-side network functions therefore remain central to the path, although the exact implementation is architecture-specific.

Why it matters: Function placement affects which ground and platform elements must be evaluated, where dependencies sit, and what evidence is needed for continuity, capacity, and operations.

Review the definition →Review primary authorities
§1 — Definition

Transparent Payload

A non-terrestrial payload configuration that relays radio signals between service-link and feeder-link sides without hosting the principal radio-access processing functions associated with a regenerative architecture.

§2 — Relationships

Closest comparison and adjacent concepts.

Transparent Payload differs from Regenerative Payload in processing context; it complements Feeder Link and Service Link, which describe opposite sides of the radio path rather than payload processing.

Difference

What separates them

A transparent payload relays the radio path without placing the principal base-station processing functions on the platform; a regenerative payload places selected processing functions onboard.

Relationship

How they work together

Together, the two capabilities frame the payload function-placement decision without prescribing a processing split or preferred architecture.

See also

§3 — Standards and Authority

Where the terminology comes from.

3GPP uses transparent or non-regenerative payload terminology in its NTN architecture material and TR 38.821. LJP uses that factual distinction without treating its namespace as a 3GPP namespace.

Primary authority ↗

Non-Terrestrial Networks (NTN)

3rd Generation Partnership Project (3GPP) · Official 3GPP technology overview

Describes transparent payloads as relay-oriented and illustrates their relationship to feeder and service links.

3GPP terminology is authoritative for its own specifications; the LJP namespace remains editorial.

Primary authority ↗

Solutions for NR to support Non-Terrestrial Networks (NTN)

3rd Generation Partnership Project (3GPP) · 3GPP TR 38.821

Provides the Release 16 technical-report record for NTN radio-access architecture and solution studies.

Release 16 technical report; version history is maintained by 3GPP

§4 — Evaluation

Apply the distinction to the decision at hand.

The distinction helps evaluators discuss function placement and ground relationships without assuming one universally preferred architecture.

Continue to a controlled evaluation.

§5 — LJP Foundation

How this capability fits the package.

Transparent Payload separates relay-oriented payload context from the additional platform-associated processing context described by Regenerative Payload.

Transparent Payload addresses the relay-oriented payload question alongside the regenerative, feeder-link, service-link, and coverage capabilities.

§6 — Machine-Readable Resources

Public identity and discovery resources.

§7 — Credibility Boundary

What this reference does not claim.

This namespace specifies no processing split, protocol, interface, spectrum choice, platform, vendor, network design, deployment method, or performance outcome.

This namespace is an LJP editorial construct. It claims no standards ownership or external endorsement and selects no vendor or implementation; protected methods and transaction materials are not disclosed.

Evaluate Transparent Payload in context.

Move from public technical orientation to a controlled package evaluation.

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