BLE Data Transmission Mode Selection for Rate and Power Trade-offs
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current Bluetooth Low Energy (BLE) protocols suffer from low data transmission rates and high power consumption, particularly when transmitting large volumes of data, leading to poor user experience and inefficient use of air interface resources.
Innovation Solution
The method involves selecting an appropriate data sending mode based on service type or user indication, utilizing three modes: infinite sending, fixed sending, and best-effort sending, with automatic and user-involved rate setting mechanisms, and implementing frequency hopping for channel switching between BLE devices to optimize data transmission rates while reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the BLE protocol is used to transmit large volumes of data with frequent packet exchanges, then data transmission rate is improved, but terminal power consumption increases
Solution Approach 1:
The patent implements dynamic adjustment of data sending modes based on service characteristics. The system switches between infinite sending mode (for emergency services requiring high transmission rate) and fixed sending mode (for non-emergency services requiring low power consumption), making the transmission behavior adaptive rather than static. This resolves the contradiction by allowing high data transmission rates only when necessary while maintaining low power consumption for routine operations.
Solution Approach 2:
The patent changes key transmission parameters including the number of packets sent per connection event interval and the connection event interval duration. By adjusting these parameters according to service type (emergency vs. non-emergency), the system optimizes the balance between data transmission rate and power consumption, achieving high throughput when needed and energy efficiency during normal operation.
2Use of energy by moving object
If the BLE protocol transmits data in fixed connection event intervals with limited packets, then power consumption is reduced, but data transmission rate deteriorates
Solution Approach 1:
The system dynamically switches between fixed sending mode (limiting packets per interval for power efficiency) and infinite sending mode (allowing continuous transmission for high data rates). This dynamic adaptation allows the system to achieve high data transmission rates when emergency services require it, while maintaining low power consumption during normal operations with smaller data volumes.
Solution Approach 2:
The patent uses periodic connection event intervals as the basis for data transmission. In fixed sending mode, data is transmitted periodically at controlled intervals, reducing power consumption. When emergency services activate infinite sending mode, the periodic structure is overridden to allow continuous transmission, thus achieving high data rates when necessary while maintaining energy efficiency for routine communications.
3Duration of action of stationary object
If data is constantly sent to the link layer in the prior-art method, then data transmission continuity is improved, but air interface resources are wasted
Solution Approach 1:
The patent extracts and separates emergency services from non-emergency services, applying different transmission strategies to each. For non-emergency services, it limits the number of packets sent per connection event interval, removing unnecessary transmissions that waste air interface resources. For emergency services, it enables continuous transmission without such limitations, ensuring transmission continuity only when critically needed.
Solution Approach 2:
Instead of constantly sending data for all services, the patent applies partial action by limiting packet transmission to only what is necessary for non-emergency services. For emergency services, it allows excessive action by enabling continuous unsolicited packet sending to ensure transmission continuity. This selective application of transmission intensity optimizes both resource efficiency and service quality.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Embodiments of the present invention relate to a data sending method and apparatus, and a terminal. The method includes: when a Bluetooth Low Energy BLE protocol is used to run a data transmission service, determining, according to a service type of the service and/or a user indication, a data sending mode for running the data transmission service; and running the data transmission service in the determined data sending mode. It can be learned from the above that, in the solutions provided in the present invention, an appropriate data sending mode can be selected according to a service type and/or a user indication. Therefore, a data transmission rate can be effectively increased while power consumption of a terminal is reduced.