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Method and device for transmitting channel estimation sequence

A technology for channel estimation and transmission methods, applied in diversity/multi-antenna systems, space transmit diversity, baseband system components, etc., can solve problems such as not supporting multi-antenna application scenarios

Active Publication Date: 2021-10-01
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of this, the present application provides a channel estimation sequence transmission method and device for solving the problem that the existing 802.11ad channel estimation sequence does not support multi-antenna application scenarios

Method used

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  • Method and device for transmitting channel estimation sequence
  • Method and device for transmitting channel estimation sequence
  • Method and device for transmitting channel estimation sequence

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Embodiment 1 of the present application provides a transmission method of a channel estimation sequence, which can be applied to access points and stations, for example: figure 1 AP and STA1-STA2 in, figure 2 The base station and UE1-UE2 in. image 3 is a flowchart of the transfer method, and the specific steps are as follows:

[0041] Step 301: Generate a physical layer protocol data unit PPDU, the PPDU includes a channel estimation field, and the channel estimation field includes one or more channel estimation sequences, and each channel estimation sequence in the one or more channel estimation sequences is composed of The channel estimation initial sequence is converted to get.

[0042] Step 302: Send the PPDU.

[0043] Specifically, the transmission method is applied to a high frequency wireless communication system, and the high frequency includes a frequency band above 6 GHz. Preferably, the transmission method is applicable to a 28GHz frequency band or a 60G...

Embodiment approach 1

[0055] Embodiment 1: {zeros(79),-Gb32,-Ga32,Gb32,Ga32,Gb32,-Gb16,0,0,0,

[0056] Ga16, -Ga32, Gb32, -Ga32, -Gb32, Ga32, zeros (78)}. zeros(n) is expressed as a sequence of n zeros, where n is an integer.

[0057]Specifically, the complete representation of Embodiment 1 is: {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,-1,1,-1,-1,-1,1,1,1, -1,-1,1,-1,-1,1,1,-1,1,1,-1,1,1,1,1,-1,1,-1,1,-1,- 1,-1,-1,-1,1,-1,1,1,1,-1,-1,-1,1,1,-1,-1,-1,1,1,-1 ,1,1,-1,1,1,1,1,-1,1,-1,1,-1,-1,-1,-1,-1,1,-1,1,1, 1,-1,-1,-1,1,1,-1,1,1,-1,-1,1,-1,-1,1,-1,-1,-1,-1, 1,-1,1,-1,1,1,1,1,1,-1,1,-1,-1,-1,1,1,1,-1,-1,1,1, 1,-1,-1,1,-1,-1,1,-1,-1,-1,-1,1,-1,1,-1,-1,-1,-1,- 1,-1,1,-1,1,1,1,-1,-1,-1,1,1,-1,1,1,-1,-1,1,-1,-1, 1,-1,-1,-1,-1,1,-1,1,-1,-1,-1,-1,-1,-1,1,-1,1,1,1, -1,-1,-1,1,1,-1,0,0,0,-1,-1,1,1,-1,1,1,-1,1,1,1,1, -1,1,-1,1,-1,-1,-1,-1,-1,1,-1,1,1,1,-1,-1,-1,1,1,- 1...

Embodiment approach 2

[0058] Embodiment 2: {zeros(79),Gb32,Ga32,-Gb32,-Ga32,-Gb32,Gb16,0,0,0,-Ga16,Ga32,-Gb32,Ga32,Gb32,-Ga32,zeros(78) }.

[0059] It should be noted that Embodiment 1 and Embodiment 2 are a set of sequences with opposite polarities. Reversed polarity means that +1 becomes -1 in the sequence, -1 becomes +1, and 0 remains unchanged.

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Abstract

The present application provides a data transmission method of a channel estimation sequence, the method includes generating and sending a physical layer protocol data unit PPDU, the PPDU contains a channel estimation field, wherein the channel estimation field contains one or more channel estimation sequences, and the Each of the one or more channel estimate sequences is transformed from an initial sequence of channel estimates. The present application also provides a corresponding channel estimation sequence transmission device, and through the above method, the PPDU based on the channel estimation field can support the characteristics of multiple spatial streams. Moreover, the initial channel estimation sequence is designed based on the Gray Golay sequence, which can reduce additional storage resources.

Description

[0001] This application claims the priority of the CN patent application with the application number CN201610543946.1 and the invention title "A Transmission Method and Device for Channel Estimation Sequence" submitted to the China Patent Office on July 8, 2016, the entire contents of which are incorporated by reference incorporated in this application. technical field [0002] The present application belongs to the technical field of communications, and in particular relates to a transmission method and device for a channel estimation sequence. Background technique [0003] Standardization of wireless local area networks (English: Wireless Local Area Networks, WLAN for short) by the 802.11 series standards greatly reduces the cost of WLAN equipment. Wireless Fidelity (English: Wireless Fidelity, referred to as: Wi-Fi) is a brand of wireless network communication technology, held by the Wi-Fi Alliance, the purpose is to improve the interoperability between wireless network p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L25/02H04B7/04H04L27/26
Inventor 颜敏薛鑫
Owner HUAWEI TECH CO LTD