Periodic Advertising Link Parameter Updates Without Reconnection
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Solution Overview
Problem
Existing wireless systems, such as Bluetooth Low Energy (BLE), require re-establishment of the advertising link when updating transmission parameters, which is inefficient in terms of time and power consumption.
Innovation Solution
Implementing a method where a broadcasting device transmits updated operating parameters during sub-intervals of a repeating advertising link, allowing scanning devices to synchronize and update their operations without re-establishing the link.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If periodic advertising parameters are updated by disabling and re-configuring the advertising link, then the new parameters can be applied, but time is lost due to link re-establishment and power is consumed during the reconnecting process
Solution Approach 1:
The patent applies dynamics by making the advertising link configurable and adaptable during operation. The system transitions from a static link configuration to a dynamic one where parameters such as advertising interval, PHY type, and channel map can be updated without breaking the link. This is achieved through auxiliary data fields that carry configuration information and event counter mechanisms that synchronize parameter changes between advertising and scanning devices, allowing the link to adapt to new conditions while maintaining continuity.
Solution Approach 2:
The patent directly implements parameter changes by allowing modification of advertising link parameters (advertising interval, PHY type, channel map) through auxiliary data fields in advertising packets. The system uses event counters to manage parameter updates, where the advertising device transmits new parameters and both advertising and scanning devices use event counters to synchronize their operations. This enables parameter changes without requiring link re-establishment, directly resolving the contradiction between adaptability and time loss.
2Adaptability or versatility
If periodic advertising parameters are updated by disabling and re-configuring the advertising link, then the new parameters can be applied, but additional power is consumed during the disconnect and reconnect process
Solution Approach 1:
The patent applies dynamics by making the advertising link configurable and adaptable during operation. The system transitions from a static link configuration to a dynamic one where parameters such as advertising interval, PHY type, and channel map can be updated without breaking the link. This is achieved through auxiliary data fields that carry configuration information and event counter mechanisms that synchronize parameter changes between advertising and scanning devices, allowing the link to adapt to new conditions while maintaining continuity and avoiding the power consumption associated with reconnection.
Solution Approach 2:
The patent directly implements parameter changes by allowing modification of advertising link parameters (advertising interval, PHY type, channel map) through auxiliary data fields in advertising packets. The system uses event counters to manage parameter updates, where the advertising device transmits new parameters and both advertising and scanning devices use event counters to synchronize their operations. This enables parameter changes without requiring link re-establishment, directly resolving the contradiction between adaptability and power consumption.
3Device complexity
If the advertising device only senses local channel quality, then the device complexity is reduced, but the system becomes unsuitable for larger networks where broader channel assessment is needed
Solution Approach 1:
The patent implements feedback by enabling scanning devices to measure channel quality and transmit this information back to the advertising device through auxiliary data fields. The advertising device collects channel quality reports from multiple scanning devices and uses this feedback to generate an optimized channel map for the entire network. This feedback mechanism allows the system to scale to larger networks while maintaining manageable device complexity, as each device performs only local measurements but the collective feedback enables global optimization.
Solution Approach 2:
The patent applies universality by making the auxiliary data field serve multiple functions: it carries channel quality reports from scanning devices, transmits updated channel maps and parameter information from the advertising device, and enables synchronization through event counters. This multi-functional approach allows a single data structure to handle network assessment, parameter distribution, and synchronization, enabling the system to scale to larger networks without proportionally increasing device complexity.
4Reliability
If conventional synchronized advertising packets are used to distribute channel map data, then reliable transmission is achieved, but the system is only suitable for networks of limited size due to local channel quality sensing
Solution Approach 1:
The patent implements feedback by enabling scanning devices to measure channel quality and transmit this information back to the advertising device through auxiliary data fields. The advertising device collects channel quality reports from multiple scanning devices and uses this feedback to generate an optimized channel map for the entire network. This feedback mechanism allows the system to scale to larger networks while maintaining manageable device complexity, as each device performs only local measurements but the collective feedback enables global optimization.
Solution Approach 2:
The patent applies universality by making the auxiliary data field serve multiple functions: it carries channel quality reports from scanning devices, transmits updated channel maps and parameter information from the advertising device, and enables synchronization through event counters. This multi-functional approach allows a single data structure to handle network assessment, parameter distribution, and synchronization, enabling the system to scale to larger networks without proportionally increasing device complexity.
Data Source
AI summary
A method can include, by operation of a wireless device, monitoring at least a first advertising channel for an advertising packet; in response to advertising data in the advertising packet, synchronizing transmission and reception of packets to an advertising link that includes sub-intervals within a repeating interval on a second advertising channel. During a download sub-interval of the sub-intervals, and update packet can be received that includes new parameter data. During an upload sub-interval of the sub-intervals, transmitting an update response packet indicating the new parameter data has been received. Wireless operations of the wireless device can be configured according to the new parameter data. Communications can continue with the same advertising link while operating according to the new parameter data. Corresponding devices and systems are also disclosed.