18149490. LINK ERROR RECOVERY METHOD AND APPARATUS simplified abstract (Huawei Technologies Co., Ltd.)

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LINK ERROR RECOVERY METHOD AND APPARATUS

Organization Name

Huawei Technologies Co., Ltd.

Inventor(s)

Yiqing Li of Shenzhen (CN)

Yunbo Li of Shenzhen (CN)

Yuchen Guo of Shenzhen (CN)

Ming Gan of Shenzhen (CN)

LINK ERROR RECOVERY METHOD AND APPARATUS - A simplified explanation of the abstract

This abstract first appeared for US patent application 18149490 titled 'LINK ERROR RECOVERY METHOD AND APPARATUS

Simplified Explanation

The patent application describes a method for recovering from link errors in a transmitter MLD (Multicast Listener Discovery) system. The system consists of a transmitter MLD and a receiver MLD connected by a first and second link. One of the MLDs has an STR (Selective Transmit Request) capability while the other does not.

  • The method involves detecting a failed transmission of a first PPDU (Protocol Data Unit) on the first link.
  • In response to the failed transmission, a second PPDU is transmitted to the receiver MLD using the first link.
  • The second PPDU is used to retransmit the error part of the first PPDU.
  • The transmission of the second PPDU occurs at a specific moment when the transmitter MLD obtains transmission status information of the second link.
  • Alternatively, if the first PPDU is normally transmitted, the first moment can be a moment for transmitting the next PPDU on the first link.

Potential Applications

  • This link error recovery method can be applied to various transmitter MLD systems that involve communication between a transmitter and a receiver.
  • It can be particularly useful in multicast communication scenarios where multiple receivers are involved.

Problems Solved

  • The method addresses the issue of link errors in a transmitter MLD system, ensuring that error parts of transmitted data can be retransmitted to ensure reliable communication.
  • It solves the problem of failed transmission on the first link by using the second link to retransmit the error part of the data.

Benefits

  • The method improves the reliability of communication in transmitter MLD systems by recovering from link errors.
  • It allows for efficient retransmission of error parts, reducing the need for retransmitting the entire data.
  • The method optimizes the timing of retransmission by utilizing the moment when transmission status information of the second link is obtained.


Original Abstract Submitted

A link error recovery method applied to a transmitter MLD is provided. Links between the transmitter MLD and a receiver MLD include a first link and a second link, and one of the transmitter MLD and the receiver MLD has an STR capability while the other does not have the STR capability. The method includes: determining that transmission of a first PPDU on the first link fails; and transmitting a second PPDU to the receiver MLD at a first moment by using the first link, the second PPDU being used to retransmit an error part in the first PPDU. The first moment is a moment at which the transmitter MLD obtains transmission status information of the second link. Alternatively, the first moment is a moment for transmitting a next PPDU on the first link if the first PPDU is normally transmitted.

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