Canon kabushiki kaisha (20240114551). METHOD AND APPARATUS FOR SIMULTANEOUS MULTI-USER AND DIRECT LINK TRANSMISSIONS WITH REDUCED INTERFERENCES simplified abstract

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METHOD AND APPARATUS FOR SIMULTANEOUS MULTI-USER AND DIRECT LINK TRANSMISSIONS WITH REDUCED INTERFERENCES

Organization Name

canon kabushiki kaisha

Inventor(s)

Mickael Lorgeoux of RENNES (FR)

Stéphane Baron of LE RHEU (FR)

François Thoumy of Le Tertre (FR)

Brice Le Houerou of ACIGNE (FR)

METHOD AND APPARATUS FOR SIMULTANEOUS MULTI-USER AND DIRECT LINK TRANSMISSIONS WITH REDUCED INTERFERENCES - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240114551 titled 'METHOD AND APPARATUS FOR SIMULTANEOUS MULTI-USER AND DIRECT LINK TRANSMISSIONS WITH REDUCED INTERFERENCES

Simplified Explanation

The patent application describes a method for managing medium access in a wireless network, specifically in granting a medium to an access point for a transmission opportunity (TXOP). The method involves defining different resource units (RUs) and allocating them for uplink transmissions and direct link transmissions. The system ensures that peer-to-peer exchanges are nested within the uplink duration to avoid interference with acknowledgment frames. Additionally, the method includes declaring an unused RU adjacent to the direct link transmission to prevent non-AP stations from using it during the TXOP.

  • The triggering frame in a wireless network grants a medium to an access point for a transmission opportunity (TXOP).
  • The frame defines resource units (RUs) and allocates them for uplink transmissions and direct link transmissions.
  • Peer-to-peer exchanges are nested within the uplink duration to avoid interference with acknowledgment frames.
  • An unused RU adjacent to the direct link transmission is declared to prevent non-AP stations from using it during the TXOP.

Potential Applications

This technology can be applied in various wireless communication systems where efficient medium access management is crucial, such as Wi-Fi networks, IoT devices, and industrial wireless networks.

Problems Solved

1. Avoiding interference between peer-to-peer exchanges and acknowledgment frames. 2. Efficient management of resource units to optimize medium access in a wireless network.

Benefits

1. Improved reliability and performance of wireless transmissions. 2. Enhanced network efficiency by preventing unnecessary interference. 3. Better utilization of available resources for data transmission.

Potential Commercial Applications

The technology can be utilized in Wi-Fi routers, IoT devices, industrial automation systems, and smart home devices to enhance the overall performance and reliability of wireless communication.

Possible Prior Art

Prior art in the field of wireless communication systems may include patents or research papers related to medium access control, resource allocation, and interference mitigation techniques in wireless networks.

Unanswered Questions

How does this technology impact the overall network throughput in a wireless system?

This technology can potentially improve network throughput by optimizing medium access and reducing interference, but the exact impact may vary depending on the specific network configuration and traffic patterns.

What are the potential challenges in implementing this method in real-world wireless networks?

Some challenges in implementing this method may include compatibility issues with existing network protocols, the need for firmware updates in devices, and ensuring seamless integration with different types of wireless devices and systems.


Original Abstract Submitted

a triggering frame in a wireless network grants a medium to an ap for a txop. the frame defines rus and allocates uplink rus to ul transmissions for an ul duration and direct link rus to p2p transmissions. all the p2p exchanges are nested within the ul duration, hence avoiding an acknowledgment frame in the dil rus to interfere with a block-ack frame of the ap after the ul transmissions. this is relevant for dil rus adjacent, in frequency, to the other defined rus. the block-ack frame is duplicated over the dil rus. the ru immediately adjacent to the dil rus is declared, in the triggering frame, as being unused: no non-ap station is allowed to use it during the ul duration, or even the txop. such empty ru may be declared only in case the dil transmission requires a response frame from the destination p2p station.

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