Radio Node Circuit Address Filtering for Energy Reduction
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Solution Overview
Problem
Radio network nodes face inefficiencies in packet reception and processing due to the lack of effective address matching and termination mechanisms, leading to unnecessary energy consumption and reduced availability for intended network transmissions.
Innovation Solution
A circuit and method for a radio network node that assigns unique network and node IDs, allowing for address-based packet reception control, where the receiving circuit is turned on or off based on address matching, and synchronization parameters are cleared to switch to new preambles when addresses do not match, optimizing energy use and availability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the receiving circuit continuously monitors all packets without address filtering, then no packets are missed, but energy consumption increases significantly
Solution Approach 1:
The receiving circuit performs preliminary address matching by comparing the network ID and node ID fields of incoming packets against stored identification codes before complete packet reception and processing. This preliminary filtering action prevents unnecessary processing of packets not intended for this node, thereby reducing energy consumption while maintaining reliable reception of relevant packets.
2Loss of information
If the receiving circuit processes all received packets completely, then all information is captured, but processing time and energy are wasted on irrelevant packets
Solution Approach 1:
The receiving circuit extracts and compares only the critical address fields (network ID and node ID) from incoming packets against stored identification codes. By taking out and processing only these essential identification elements rather than complete packet processing, the system quickly determines relevance and avoids wasting time on irrelevant packets while ensuring no relevant information is lost.
3Productivity
If the node remains in reception mode to catch all possible packets, then packet reception availability is maximized, but energy consumption increases
Solution Approach 1:
The receiving circuit operates in periodic cycles, alternating between active reception modes and low-power states. During active periods, it monitors for packets and performs address matching. When no relevant packets are detected for extended periods, it transitions to lower power consumption states, thereby maintaining packet reception availability while significantly reducing overall energy consumption through periodic rather than continuous operation.
Data Source
AI summary
A circuit and a method for operating a node in a radio network, whereby nodes of the same radio network have a common network ID and each node individually is assigned a node ID, wherein during the reception of a current packet by a receiving circuit of the node, an address contained in the packet is determined, wherein reception of the current packet is continued when the determined address agrees with the network ID of the node and the node ID of the node, and wherein during reception of the current packet, the reception of the current packet is terminated and the receiving circuit is controlled based on a case decision, when the determined address does not agree with the network ID of the node or the node ID of the node.