Data transmission method and device

A data transmission method and data transmission technology, which are applied in the field of data transmission methods and devices, and can solve problems such as low speed and narrow communication bandwidth

Active Publication Date: 2018-05-04
HUAWEI TECH CO LTD
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the traditional WLAN has the characteristics of large bandwidth, high speed and short-distance transmission, while IoT devices have the characteristics of low speed, long-distance coverage and low power consumption due to the particularity of the application, so that IoT devices are likely to use relatively Narrower communication bandwidth of traditional WLAN

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  • Data transmission method and device

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Embodiment Construction

[0076] figure 1 This is a schematic diagram of the system architecture of a data transmission method provided by an embodiment of the present invention. The method can be applied to figure 1 The wireless communication system shown, such as figure 1 As shown, the wireless communication system may include: an access point 01 and multiple stations, figure 1 Take 4 sites (denoted as site 11, site 12, site 13, and site 14) as an example.

[0077] The wireless communication system may be a network compatible with the Internet of Things (IoT) and wireless high-fidelity (Wireless-Fidelity, Wi-Fi for short). Among them, the access point supports a broadband channel, and the site supports a narrowband channel, but not limited to this.

[0078] Each station transmits data to the access point through a narrowband channel. Optionally, each station uses a corresponding narrowband channel and access point to transmit data. For example, the stations can be grouped, and each group is associated wi...

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Abstract

The embodiment of the invention provides a data transmission method and device. The method is applied to a wireless communication system. The system comprises an access point and a plurality of sites,wherein each site transmits data through a narrowband channel and the access point; and a first site transmits data through a first narrowband channel and the access point. The method comprises the following steps that: when a counter of the first narrowband channel retreats to 0, the access point determines that at least one second site transmits data on a narrowband channel other than the firstnarrowband channel; and when the at least one second site completes data transmission and the first narrowband channel is determined to be idle, the access point transmits data to be transmitted to the first site through the first narrowband channel. Through adoption of the data transmission method and device, cooperation of a plurality of narrowband channels is realized, namely, the plurality ofnarrowband channels can transmit data, and the interference of transmission narrow channels with signals on receiving narrow channels under the situation that the access point transmits data on a part of channels and receives data on a part of narrow channels is avoided.

Description

Technical field [0001] The present invention relates to wireless communication technology, in particular to a data transmission method and device. Background technique [0002] The Internet of Things (IoT) is an inevitable trend in the development of wireless networks. Wireless Local Area Networks (WLAN), as one of the most important ways to carry wireless data, need to support IoT. [0003] At present, traditional WLAN has the characteristics of large bandwidth, high rate and relatively short-distance transmission. However, due to the particularity of the application, IoT devices have the characteristics of low rate, long-distance coverage, and low power consumption. Traditional WLAN has narrower communication bandwidth. Therefore, IoT transmission of a narrowband channel may occupy the entire WLAN transmission channel, which requires a method for coordination of multiple narrowband channels. Summary of the invention [0004] The embodiments of the present invention provide a dat...

Claims

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Application Information

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IPC IPC(8): H04W74/08
CPCH04W74/0816H04W74/0808Y02D30/70
Inventor 杨懋李波李云波
Owner HUAWEI TECH CO LTD
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