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Data transmission method and terminal device

A data transmission method and terminal equipment technology, applied in the field of data transmission methods and terminal equipment, can solve the problems of data transmission failure, waste of time and resources, long time of failed transmission, etc., and achieve the effect of reducing the time of failed transmission and improving the utilization rate

Active Publication Date: 2017-11-21
CHINA UNITED NETWORK COMM GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, in the uplink channel access mechanism of this system, the impact of failed transmission on the channel occupation time is not considered, and the user can only find the data transmission failure through the absence of the ACK frame after the data transmission ends, resulting in a long time for the failed transmission. waste of time and resources

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  • Data transmission method and terminal device
  • Data transmission method and terminal device
  • Data transmission method and terminal device

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Embodiment Construction

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0020] The terms "comprising" and "having" and any variations thereof in the description and claims of the present invention are intended to cover a non-exclusive inclusion, for example, a process comprising a series of steps or a device of structure need not be limited to the expressly listed Instead, those structures or steps may include other steps or structures not expressly listed or inherent to the process or device.

[0021] figure 1 It is a schematic ...

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Abstract

An embodiment of the invention provides a data transmission method and a terminal device. The method includes the steps: periodically detecting the number of second terminal devices transmitting data in a signal channel and detecting whether a target frame is broadcasted or not in the signal channel when a first terminal device in a multi-user MIMO (multiple-input multiple-output) WLAN (wireless local area network) system transmits data to a wireless AP (access point); stopping transmitting the data by the first terminal device if the number of the second terminal devices exceeds the maximum carrying quantity of the AP and / or the target frame is broadcasted in the signal channel. The target frame is used for representing data transmission collision generated in the signal channel. According to the method and the terminal device, failed transmission time of the data in the signal channel can be shortened, and the use ratio of signal channel resources is further increased.

Description

technical field [0001] Embodiments of the present invention relate to the field of communication technologies, and in particular, to a data transmission method and a terminal device. Background technique [0002] Multiple-Input Multiple-Output (MIMO for short) Wireless Local Area Networks (WLAN for short) system is a system that allows multiple users to communicate with the same Wireless Access Point (WAP) at the same time. AP for short) communication system for communication. In the uplink channel access mechanism of the system, the channel access mechanism of carrier sense multiple access CSMA / collision avoidance CA is adopted, which improves the channel utilization rate by adopting the asynchronous channel access mechanism, and reduces the Collision probability when users compete for a channel, the integrity of transmitted data is ensured through an acknowledgment mechanism using an acknowledgment character (Acknowledgment, ACK for short). [0003] However, in the uplin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/0413H04W48/10H04W74/08H04W84/12
CPCH04B7/0413H04W48/10H04W74/085H04W84/12
Inventor 王笑帝寇金锋刘镝
Owner CHINA UNITED NETWORK COMM GRP CO LTD