Wireless Frame Transmission Using AID Segmentation
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Solution Overview
Problem
Current wireless communication technologies face inefficiencies in managing and transmitting frames between devices, particularly in distinguishing between individually addressed and group addressed frames, which affects airtime, power consumption, and reliability in multicast communications.
Innovation Solution
The implementation of specific Association Identifiers (AIDs) to differentiate between frames, along with the aggregation of group addressed media access control (MAC) service data units (MSDUs) into physical layer convergence protocol data units (PPDUs), enables efficient transmission and reception of individually addressed and group addressed frames, including the use of BSS-specific AIDs for multicast and broadcast frames.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If individual frame transmission is used for each device, then transmission reliability is improved, but airtime consumption increases and efficiency decreases
Solution Approach 1:
The patent segments the transmission process into two distinct types: individually addressed frames for reliable point-to-point communication and group addressed frames for efficient multicast. This segmentation allows the system to choose the appropriate transmission mode based on the communication requirements, thereby resolving the contradiction between reliability and efficiency.
Solution Approach 2:
The patent implements dynamic frame address assignment where the destination address field can be set to different values (unicast address vs. group address) based on the transmission scenario. This dynamic adaptation enables the system to optimize both reliability and airtime utilization by selecting the most suitable transmission mode for each specific communication need.
2Productivity
If group addressed frames are used for multicast, then airtime efficiency is improved, but frame distinction and addressing complexity increases
Solution Approach 1:
The patent applies local quality by using different address assignment strategies for different frame types: individual addresses for unicast frames and group addresses for multicast frames. This localized differentiation simplifies the addressing mechanism by matching the address type to the transmission purpose, thereby reducing overall system complexity while maintaining efficiency.
Solution Approach 2:
The patent changes the address parameter (destination address field value) to distinguish between individual and group frames. By utilizing the existing address field capacity and assigning specific value ranges to different frame types, the system achieves efficient frame distinction without introducing additional complexity or requiring new addressing protocols.
3Adaptability or versatility
If multiple frames are transmitted separately, then transmission flexibility is improved, but overhead increases and airtime is wasted
Solution Approach 1:
The patent merges multiple group addressed frames into a single transmission opportunity by using group addressed frames with the same destination address. This combining approach reduces the number of separate transmissions, thereby reducing overhead and airtime consumption while maintaining the flexibility to transmit to multiple devices through the group address mechanism.
Data Source
AI summary
Some embodiments of this disclosure include apparatuses and methods for implementing discovery frames and group addressed frames communication. For example, some embodiments relate to a method including generating a first frame to be transmitted to a first electronic device. An association identifier (AID) value of the first frame is set to a first value to indicate that the first frame is an individually addressed frame addressed to the first electronic device. The method further includes generating a second frame to be transmitted to a group of one or more electronic devices. An AID value of the second frame is set to a second value different from the first value. The method also includes transmitting the first frame and the second frame.