Multi-link Terminal Dynamic MAC Address Allocation
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Solution Overview
Problem
In 802.11be networks, existing address allocation methods for multi-link terminals are not dynamic enough to accommodate varying service requirements and power saving needs, leading to inefficiencies in data transmission and latency, especially with the increasing demand for high-throughput applications like video streaming and virtual reality.
Innovation Solution
The method involves sending an association request message from a logical entity of the multi-link terminal to a network access device with a MAC address containing link information bits, allowing for dynamic allocation of addresses based on link identifiers and preferred links, ensuring unique addresses for logical entities and flexible operation across multiple links.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a static MAC address is allocated to each logical entity in a multi-link terminal, then the address allocation is simple and deterministic, but it cannot adapt to varying service requirements and power saving needs across different links
Solution Approach 1:
The patent implements dynamic address allocation where the network access device assigns different MAC addresses to logical entities based on their operating links. The MAC address includes link information bits that dynamically reflect which link the logical entity is operating on, allowing the system to adapt to varying service requirements and power saving needs without manual reconfiguration.
Solution Approach 2:
The patent changes the parameter structure of MAC addresses by incorporating link information bits (specifically bits 25-27) that encode the operating link identifier. This parameter change enables the MAC address to carry dynamic information about the logical entity's operational state, allowing adaptation to different service requirements while maintaining a systematic allocation approach.
2Productivity
If multiple MAC addresses are pre-configured for all possible logical entities, then address allocation is straightforward, but it wastes address resources when not all logical entities are actively used
Solution Approach 1:
The system dynamically allocates MAC addresses based on the actual number of logical entities that need to operate. Instead of pre-configuring addresses for all possible logical entities, the network access device allocates MAC addresses only to logical entities that are currently active, thereby improving address allocation efficiency and reducing wasted address resources.
3Adaptability or versatility
If dynamic address allocation is implemented to accommodate varying service needs, then adaptability improves, but the complexity of address management and allocation increases
Solution Approach 1:
The patent manages the complexity of dynamic address allocation by systematically embedding link information directly into the MAC address structure. The link information bits (bits 25-27) provide a standardized parameter that automatically identifies the operating link, simplifying the management process compared to maintaining separate address tables or complex allocation logic.
Solution Approach 2:
The MAC address structure serves multiple functions: it uniquely identifies the logical entity, encodes the operating link information, and enables power saving operations. By making the MAC address multi-functional, the patent reduces the need for separate management mechanisms, thereby controlling complexity while achieving high adaptability.
4Ease of operation
If logical entities use the same MAC address as the physical terminal, then address management is simplified, but it creates ambiguity in identifying which logical entity is transmitting on which link
Solution Approach 1:
The patent resolves the ambiguity by modifying the MAC address parameter structure to include link information bits. This ensures that each logical entity's MAC address contains embedded information about its operating link, allowing the network access device to accurately identify which logical entity is transmitting on which link without complicating the overall address management approach.
Data Source
AI summary
The application discloses a multi-link terminal, a method for allocating an address for the multi-link terminal, a network access device and a medium. The method for allocating the address for the multi-link terminal includes following steps: sending, by a logical entity affiliated with the multi-link terminal, an association request message to a network access device, wherein the association request message includes a MAC address of the multi-link terminal; and receiving, by the logical entity, an association response message sent by the network access device, wherein the association response message includes addresses and association identifiers allocated by the network access device for logical entities affiliated with the multi-link terminal, and the addresses for the logical entities include respective link information bits.