Multi-RAT Broadcast Signaling Using a Shared Synchronization Block

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Solution Overview

Problem

Conventional methods for multi-radio access technology (RAT) spectrum sharing (MRSS) involve separate and inefficient resource-intensive transmissions of synchronization signals and primary broadcast information for each RAT, leading to increased resource usage and signaling overheads.

Innovation Solution

Integrating transmission of system information for multiple RATs, such as 5G and 6G, into a single synchronization signal block (SSB), allowing UEs to identify supported RATs early in the access procedure and minimize signaling overheads.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If separate transmissions of synchronization signals and primary broadcast information are performed for each RAT, then each RAT can be independently supported, but resource consumption and signaling overheads increase

Engineering Contradiction:

Improvemulti-RAT support capabilityVSAvoidresource consumption

Core Design Contradiction:

Adaptability or versatilityVSUse of energy by moving object

Solution Approach 1:

The patent combines synchronization signals and primary broadcast information for multiple RATs (5G and 6G) into a single SSB transmission. The SSB includes a 5G PSS/SSS pair along with 6G system information, allowing a single transmission to carry information for both RATs, thereby reducing resource consumption while maintaining multi-RAT support capability

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The SSB structure is designed to serve multiple functions simultaneously: it provides synchronization for 5G UEs, delivers system information for 6G, and enables both 5G and 6G UEs to identify supported RATs early in the access procedure. This multi-functional approach eliminates the need for separate dedicated transmissions for each RAT

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If separate transmissions of synchronization signals and primary broadcast information are performed for each RAT, then each RAT can be independently supported, but signaling overheads increase

Engineering Contradiction:

Improvemulti-RAT support capabilityVSAvoidsignaling overhead

Core Design Contradiction:

Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

The patent merges the transmission of 5G synchronization signals with 6G system information into a single SSB. This consolidation reduces the quantity of signaling transmissions required, as one SSB replaces what would otherwise be separate transmissions for each RAT, thereby reducing overall signaling overhead while maintaining support for both RATs

Inventive Principle:

Principle #5Merging (Combining)

3Use of energy by moving object

If integrated transmission of system information for multiple RATs is performed in a single SSB, then resource consumption and signaling overheads are reduced, but the complexity of the SSB structure increases

Engineering Contradiction:

Improveresource consumptionVSAvoidSSB structure complexity

Core Design Contradiction:

Use of energy by moving objectVSDevice complexity

Solution Approach 1:

The integrated SSB is segmented into distinct functional components: 5G synchronization signal portions (PSS/SSS) and 6G system information portions. This segmentation allows receiving UEs to efficiently parse and process only the relevant portions based on their supported RATs, managing the complexity through structured organization rather than monolithic design

Inventive Principle:

Principle #1Segmentation

4Quantity of substance

If integrated transmission of system information for multiple RATs is performed in a single SSB, then signaling overheads are reduced, but the complexity of the SSB structure increases

Engineering Contradiction:

Improvesignaling overheadVSAvoidSSB structure complexity

Core Design Contradiction:

Quantity of substanceVSDevice complexity

Solution Approach 1:

The patent merges multiple signaling functions into a single SSB transmission, reducing the total number of signaling messages required. The SSB simultaneously conveys 5G synchronization information and 6G system information, eliminating the need for separate dedicated signaling transmissions for each RAT and thereby reducing overall signaling overhead

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS20260012859A1Broadcast information signaling in multi-rat spectrum sharing scenarios

Publication Date: 2026.01.08 LENOVO UNITED STATES INC

AI summary

Various aspects of the present disclosure relate to combining or integrating the broadcast of system information two different radio access technologies in a single transmission of primary system information by a cell, base station, or other network entity. For example, a synchronization signal block (SSB) associated with a first radio access technology may include information (e.g., in a synchronization signal and/or physical broadcast channel) that identifies a cell broadcasting the information as supporting a different radio access technology. The SSB, embedding or otherwise including certain RAT information, may be useful to user equipment seeking access to different radio access technologies.