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Data sending method, receiving method and site

A technology for receiving sites and sending methods, applied in the direction of preventing/detecting errors through diversity reception, digital transmission systems, and preventing errors, etc., can solve problems such as reducing the overhead ratio of physical frame headers, and achieve improved reception quality and spectrum utilization. The effect of reducing the cost ratio

Inactive Publication Date: 2017-12-01
ZTE CORP
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AI Technical Summary

Problems solved by technology

[0009] The embodiment of the present invention provides a data sending method, a receiving method and a station to solve the problem of reducing the overhead ratio of the physical frame header

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  • Data sending method, receiving method and site
  • Data sending method, receiving method and site
  • Data sending method, receiving method and site

Examples

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Embodiment 1

[0066] In a wireless communication system, if the transmission channel bandwidth of the physical frame obtained by the transmitting end is 8MHz, then the preamble of the physical frame includes figure 2 Space-time domain short training sequence (STF), long training sequence (LTF), SIGA, multi-user long training sequence (MU-LTF), sent over the entire 8MHz bandwidth, signaling B (SIGB) and multi-user data Sent on their respective allocated bandwidth, such as Figure 5 shown.

[0067] During the process of sending the physical frame, the SIGA carries the physical sending information of multiple users, and the specific sending content and sending format are as defined in IEEE 802.11ah.

[0068] The reserved bits in the SIGA field are used to indicate that the physical frame is a space division / frequency division multi-user MIMO transmission frame, for example, 1 bit "0" is used to indicate space division multiplexing, and 1 bit "1" is used to indicate frequency division multipl...

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Abstract

The present invention provides a data sending method, a receiving method, and a station, wherein the data sending method includes: the sending station sends the first part of the current physical frame to multiple receiving stations on the entire bandwidth occupied by the current physical frame ; The sending station sends the second part of the current physical frame content to the multiple receiving stations on the dedicated frequency resources corresponding to each receiving station; wherein, the first part of the content includes a preamble sequence, the multiple receiving stations public signaling of the stations and part of the dedicated signaling of each receiving station, and the content of the second part includes the rest of the dedicated signaling and data of each receiving station except the part of the dedicated signaling. The technical scheme of the present invention can support multi-user transmission of frequency division multiplexing in the IEEE 802.11ah system, and the existing system is slightly changed, and the overhead ratio of the physical frame header can be reduced; in addition, the quality of user reception and spectrum utilization can be effectively improved Rate.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a data sending method, a receiving method and a station. Background technique [0002] Typical application scenarios of the Institute of Electrical and Electronics Engineers (IEEE) 802.11ah system are IoT applications, medical monitoring, or 1GHz coverage enhancement. For the IoT application scenario, the service is characterized by the terminal sleeping for a long time, and only needs to report or receive the required information within a certain time interval. Most of the information is about 250 bytes in size, and most of them are small data service packets. [0003] The IEEE 802.11ah system supports the closed-loop multiple-input multiple-output (MIMO) transmission method, and the transmission format of the physical frame is as follows: figure 1 with figure 2 As shown, the physical frame header will occupy 6 to 11 symbols in the transmission of a physical fram...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04L1/06
Inventor 姜静田开波江岸明李楠吕开颖孙波
Owner ZTE CORP
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