Wireless Discovery and Paging Interval Segmentation
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Solution Overview
Problem
Current wireless communication systems face inefficiencies in power consumption and channel utilization due to overlapping discovery and paging intervals, which can lead to increased power usage and reduced successful packet transmission rates.
Innovation Solution
Implementing separate recurring time intervals for discovery and paging packets, where discovery packets advertise services during discovery intervals and interested devices indicate interest through paging packets during non-overlapping paging intervals, utilizing contention-based methods like CSMA/CA to manage channel access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If discovery and paging intervals overlap, then channel utilization is improved, but power consumption increases
Solution Approach 1:
The patent segments the communication protocol into distinct discovery and paging phases with separate time intervals. Discovery packets are transmitted during discovery intervals, while paging packets are transmitted during paging intervals. This segmentation allows devices to optimize their operation for each phase independently, reducing overall power consumption while maintaining channel utilization efficiency.
2Reliability
If devices monitor continuously for packets, then packet transmission reliability is improved, but power consumption increases
Solution Approach 1:
The patent implements periodic monitoring where devices wake up at predetermined discovery intervals to transmit or receive discovery packets, and wake up at predetermined paging intervals to receive paging packets. Between these intervals, devices can enter low-power sleep mode. This periodic action maintains reliable packet transmission while significantly reducing power consumption compared to continuous monitoring.
3Speed
If discovery and paging packets are transmitted simultaneously, then communication speed is improved, but channel access conflicts increase
Solution Approach 1:
The patent divides channel access into separate discovery intervals and paging intervals, preventing simultaneous transmission of discovery and paging packets. This segmentation eliminates channel access conflicts between these packet types while maintaining efficient communication speed through optimized interval scheduling and contention-based access methods like CSMA/CA.
Data Source
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AI summary
Methods, devices, and computer program products for transmitting and receiving discovery and paging messages are described herein. In one aspect, an apparatus operable in a wireless communication system includes a transmitter and receiver. The transmitter transmits a discovery packet during a first discovery interval of a plurality of discovery intervals. The discovery packet advertises a service provided in a wireless communications network, and the plurality of discovery intervals include recurring time intervals when a plurality of devices are configured to transmit and receive discovery packets. The receiver receives a paging packet from a first device during a first paging interval of a plurality of paging intervals. The paging packet indicates interest in the service, and the plurality of paging intervals include recurring time intervals when the plurality of devices are configured to transmit and receive paging packets. The plurality of paging intervals do not overlap the plurality of discovery intervals.