Wireless Communication Packet Addressing for IAB Congestion
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Solution Overview
Problem
In Integrated Access and Backhaul (IAB) networks, the increased number of packets transmitted and received between IAB donors and nodes leads to congestion, particularly during broadcasts and multicasts, reducing throughput.
Innovation Solution
A wireless communication device sets a destination address in packets destined for multiple nodes, using addresses for broadcast or multicast, allowing IAB nodes to transmit packets once to all connected nodes or according to path setting packets, reducing redundant transmissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If packets are transmitted individually to each IAB node for broadcast and multicast, then all nodes receive the packets, but the number of packets increases causing congestion
Solution Approach 1:
The patent merges multiple individual packet transmissions into a single broadcast packet with a broadcast destination address. Instead of transmitting separate packets to each IAB node, the system uses a single packet with destination address indicating broadcast, which all IAB nodes receive and forward appropriately, thereby reducing the total number of packets and mitigating congestion while ensuring all nodes receive the information.
Solution Approach 2:
The broadcast packet with a special broadcast destination address serves multiple functions simultaneously - it is transmitted to all IAB nodes in the network, enabling both broadcast and multicast functionality through a single packet type. This universal approach eliminates the need for separate unicast transmissions to each node.
2Adaptability or versatility
If path setting packets are transmitted to all IAB nodes, then routing is established, but redundant transmissions occur increasing packet count
Solution Approach 1:
The system establishes routing paths in advance by transmitting path setting packets to all IAB nodes before actual data transmission. These path setting packets use broadcast destination addresses to efficiently configure routing information across the network, allowing flexible routing adaptability while minimizing the number of packets needed for path establishment.
3Reliability
If IAB nodes transmit packets to all connected nodes, then broadcast coverage is achieved, but redundant transmissions increase packet count
Solution Approach 1:
IAB nodes act as intermediaries that receive broadcast packets with destination addresses indicating broadcast or multicast, and forward these packets to their connected nodes according to pre-established routing paths. This intermediary function enables reliable broadcast coverage while avoiding redundant transmissions, as each node forwards the packet only once through its connections rather than receiving and re-transmitting multiple copies.
Data Source
AI summary
A wireless communication device includes a processor that generates a packet and a transmitter that wirelessly transmits the packet generated by the processor. The processor is configured to generate a packet containing data destined for a plurality of nodes and set a destination address different from respective addresses of the plurality of nodes in the generated packet, the destination address specifying that the packet is destined for the plurality of nodes.