18255842. METHOD AND APPARATUS FOR SIMULTANEOUS MULTI-USER AND DIRECT LINK TRANSMISSIONS WITH REDUCED INTERFERENCES simplified abstract (CANON KABUSHIKI KAISHA)

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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 18255842 titled 'METHOD AND APPARATUS FOR SIMULTANEOUS MULTI-USER AND DIRECT LINK TRANSMISSIONS WITH REDUCED INTERFERENCES

Simplified Explanation

The triggering frame in a wireless network allocates resources to an Access Point for a Transmission Opportunity (TXOP), defining Resource Units (RUs) for different types of transmissions.

  • The frame designates Uplink RUs for uplink transmissions and Direct Link RUs for point-to-point transmissions, with all P2P exchanges occurring within the UL duration to prevent interference with acknowledgment frames.
  • Block-ack frames are duplicated over the Direct Link RUs, ensuring successful communication with the AP after the UL transmissions.
  • Unused RUs adjacent to the Direct Link RUs are declared in the triggering frame, restricting non-AP stations from using them during the UL duration or TXOP.
  • Empty RUs may only be declared if the Direct Link transmission necessitates a response frame from the destination P2P station.

Potential Applications

This technology can be applied in wireless networks to optimize resource allocation and improve the efficiency of point-to-point transmissions within the network.

Problems Solved

1. Interference between acknowledgment frames and P2P transmissions. 2. Efficient resource allocation for different types of transmissions in a wireless network.

Benefits

1. Enhanced communication reliability between stations and the Access Point. 2. Improved network performance and throughput. 3. Streamlined resource allocation for various transmission types.

Potential Commercial Applications

Optimizing wireless network performance in environments where multiple devices communicate with a central Access Point, such as in smart homes, offices, or industrial settings.

Possible Prior Art

Prior art may include patents or research papers related to resource allocation and interference mitigation techniques in wireless networks.

Unanswered Questions

How does this technology impact the overall network latency?

The abstract does not provide information on the potential impact of this technology on network latency. Further research or testing may be required to determine if there are latency improvements or drawbacks associated with this innovation.

What are the potential security implications of this resource allocation method?

The abstract does not address the security aspects of this technology. It would be essential to investigate how this resource allocation method may impact network security and whether it introduces any vulnerabilities that need to be addressed.


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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