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Wireless frame transmission method and device

A transmission method and technology of a transmission device are applied in the directions of radio transmission systems, digital transmission systems, electrical components, etc., to achieve the effect of a reasonable number and reduction of pilot overhead.

Active Publication Date: 2011-09-28
ZTE CORP
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0006] There is a lack of a method and device for determining the maximum number of VHT-LTFs in the channel measurement frame NDP in the prior art

Method used

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  • Wireless frame transmission method and device
  • Wireless frame transmission method and device

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Embodiment Construction

[0022] The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0023] Such as figure 1 As shown, the channel measurement frame NDP in the protocol consists of L-STF (long training sequence), S-STF (short training sequence), L-SIG (signal domain), VHT-SIG-A (VHT signal A domain), VHT -STF (VHT Short Training Sequence), VHT-LTF (VHT Long Training Field) and VHT-SIG-B (VHT Signal B Field).

[0024] To save pilot overhead, such as figure 2 As shown, the present invention provides a method and device for sending a radio frame, which are used for sending a channel measurement frame NDP to a receiving end. In this sending method and device, a new channel measurement frame NDP frame structure is adopted. The channel measurement frame NDP consists of a long training sequence (L-STF), a short training sequence (S-STF), a signal domain (L-SIG), a VHT signal A domain (VHT-SIG-A), a VHT short training...

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Abstract

The invention discloses a wireless frame transmission method and a wireless frame transmission device. The wireless frame transmission method comprises the following steps of: transmitting a null data packet (NDP) to a receiver, wherein the NDP comprises at least two very high throughput (VHT) long training fields (VHT-LTF), and the maximum number of the VHT-LTFs is determined according to the number of the VHT-LTFs which can be supported by at least one receiver. By the transmission method and the transmission device, the maximum number of the VHT-LTFs in the NDP is determined.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method and device for sending wireless frames. Background technique [0002] Wireless Local Area Networks (WLAN for short) is the application of wireless communication technology to interconnect computer equipment to form a network system that can communicate with each other and realize resource sharing. The essence of wireless local area network is to replace the cable connection by wireless connection to realize the wireless interconnection between computer and network, so that the construction of network and the movement of terminals are more flexible. [0003] Institute for Electrical and Electronic Engineers (IEEE for short) 802.11 is one of the mainstream technologies of wireless local area network at present, and this protocol mainly stipulates physical layer (PHY) and media access control layer (MAC) specifications. With the development of mobile...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L27/26H04L1/00
CPCH04L27/26H04L27/2602H04L1/00H04B7/2603
Inventor 姜静张力
Owner ZTE CORP
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