Vehicle Control Unit for Shared BLE Pairing Across Receivers
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Solution Overview
Problem
The establishment of connections between multiple Bluetooth Low Energy (BLE) chips in a vehicle for keyless vehicle access is time-consuming and resource-intensive due to the need for individual pairing with user devices.
Innovation Solution
A control unit generates and communicates identification information to multiple receivers, allowing them to reuse the same information for connecting to a transmitter, thereby reducing the need for individual pairing processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple BLE chips are used to provide sufficient coverage area around the vehicle, then the coverage area is improved, but the time and resource consumption for connection establishment increases
Solution Approach 1:
The patent merges the connection establishment process across multiple BLE chips by allowing a user device to pair with one receiver and have that pairing information shared with other receivers. This combines what would otherwise be separate pairing operations into a single unified process, reducing total connection establishment time while maintaining multi-chip coverage architecture
Solution Approach 2:
The system performs preliminary pairing actions with the first receiver, then uses that pre-established connection information to enable subsequent receivers to connect without performing full pairing procedures. This preliminary action with one device benefits all other devices, reducing their connection establishment time
2Area of stationary object
If multiple BLE chips are used to provide sufficient coverage area around the vehicle, then the coverage area is improved, but the resource consumption for connection establishment increases
Solution Approach 1:
The patent merges the resource-intensive pairing operations into a single execution rather than requiring each receiver to independently perform full pairing procedures. This consolidation significantly reduces cumulative energy consumption across multiple BLE chips while preserving the distributed coverage architecture
Solution Approach 2:
The system creates copies of the pairing information from the first receiver and distributes it to subsequent receivers. This copying approach consumes far fewer resources than performing complete pairing procedures at each receiver, enabling energy-efficient multi-chip operation
3Reliability
If individual pairing is performed with each BLE chip, then connection reliability is improved, but the complexity of the connection establishment process increases
Solution Approach 1:
The patent makes the pairing information universal across multiple receivers, allowing a single pairing operation to serve multiple connection purposes. This multi-functional approach maintains reliable connections with all receivers while reducing the overall complexity of the pairing process from multiple independent procedures to one unified process
Data Source
Figure 1~2
Figure 3
AI summary
Embodiments relate to a control unit, a vehicle, a method and a computer program. The control unit (30) for controlling connection establishment between a transmitter and a plurality of receivers (60; 62) comprises an interface (32) configured to communicate with a plurality of receivers (60; 62) and processing circuitry (34) configured to control the interface (32) and to generate identification information for establishing a connection between a transmitter and a receiver (60; 62) of the plurality of receivers (60; 62). The processing circuitry (34) is further configured to transmit the identification information to the plurality of receivers (60; 62), to enable the plurality of receivers (60; 62) to reuse the same identification information for connecting to the transmitter.