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A communication method and communication device

A communication method and technology of a communication device are applied in the directions of signal transmission/reception, signaling distribution, channel estimation, etc. through power distribution, and can solve problems such as poor flexibility in data frame transmission.

Active Publication Date: 2022-03-29
HUAWEI TECH CO LTD
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  • Description
  • Claims
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Problems solved by technology

Therefore, the sending flexibility of the data frame in the existing PLC is relatively poor

Method used

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  • A communication method and communication device
  • A communication method and communication device
  • A communication method and communication device

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Embodiment Construction

[0063] It should be understood that in this application, unless otherwise specified, " / " means or means, for example, A / B can mean A or B; "and / or" in this application is only a description of the relationship between associated objects , which means that there can be three kinds of relationships, for example, A and / or B, can mean: A exists alone, A and B exist simultaneously, and B exists alone. "At least one" means one or more, and "plurality" means two or more.

[0064] In addition, terms such as "first" and "second" involved in this application are only used for the purpose of distinguishing descriptions, and cannot be interpreted as indicating or implying relative importance or implicitly indicating the number of indicated technical features, nor Not to be construed as indicating or implying an order.

[0065] The terms involved in the embodiments of the present application are explained below for ease of understanding.

[0066] 1. PSD. PSD is used to represent the dis...

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Abstract

A communication method and a communication device relate to the technical field of communication. The method includes: the sending end device generates a data frame, and uses the first PSD to send the first preamble sequence and the frame header of the data frame on the power line; uses the second PSD to send the additional channel estimation information and load of the data frame on the power line , the first PSD is different from the second PSD. Wherein, the data frame includes a first preamble sequence, a frame header, additional channel estimation information and a load; the first preamble sequence is at least used for synchronization; the frame header includes first indication information, and the first indication information is used to indicate that the type of the data frame is In the first data frame type, the additional channel estimation information is located between the frame header and the payload, and is carried on at least one symbol. This technical solution helps to improve the flexibility of data frame transmission in the PLC because different parts of a data frame can be transmitted through different PSDs on the power line.

Description

technical field [0001] The present application relates to the technical field of power line communication, and in particular to a communication method and a communication device. Background technique [0002] Currently, in power line communication (power line communication, PLC), the data frame can be as figure 1 Shown, including the preamble (preamble), frame header (header) and load (payload). In the prior art, when the sending end device sends a data frame to the receiving end device, the power spectral density (PSD) used by each part of the data frame, ie, the preamble sequence, the frame header, and the payload, etc. are the same. [0003] Limited by the total transmission power of the device, the power corresponding to the PSD used by the sending device to send data frames to the receiving device is concentrated within a certain frequency range. In the prior art, the power corresponding to the PSD used by the sending end device to send data frames to the receiving en...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L25/02H04L5/00H04B3/54
CPCH04L25/0202H04B3/54H04L5/0048H04L5/0053H04L25/0204H04L25/0224H04B2203/5425
Inventor 黄亚东曾焱
Owner HUAWEI TECH CO LTD
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