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A preamble configuration method, sending method and related equipment

A preamble and pilot code technology, applied in the field of communication, to achieve the effect of reducing delay

Active Publication Date: 2019-10-11
YULONG COMPUTER TELECOMM SCI (SHENZHEN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing technology has not yet provided a solution for sending preambles on unlicensed carriers, so how to transmit preambles on unlicensed carriers for random access is a hot topic of current research

Method used

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  • A preamble configuration method, sending method and related equipment
  • A preamble configuration method, sending method and related equipment
  • A preamble configuration method, sending method and related equipment

Examples

Experimental program
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Embodiment Construction

[0023] 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 creative efforts fall within the protection scope of the present invention.

[0024] see Figure 1a , which is a schematic flowchart of a method for configuring a preamble on an unlicensed carrier provided by an embodiment of the present invention. In an embodiment of the present invention, the method includes:

[0025] S101. The base station configures a PRACH configuration message.

[0026] Specifically, the PRACH configuration message indicates the relevant parameters of the preamble to be sent, and the PRACH configuration message include...

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PUM

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Abstract

The embodiment of the present invention discloses a method for configuring a preamble on an unlicensed carrier, including: configuring a PRACH configuration message; wherein, the PRACH configuration message includes subframe position information, first CCA interval position information, channel detection mechanism, and preamble format information and preamble transmission position information; the subframe position information indicates the subframe where the M preambles to be transmitted are located; the first CCA interval position information indicates that the CCA interval before each preamble in the M preambles to be transmitted is on the subframe Or the position on the previous subframe of the subframe, the channel detection mechanism indicates whether the user equipment detects that the unlicensed carrier is idle, the preamble format information indicates that the preamble to be sent is a format 4 preamble; send the PRACH configuration to the user equipment Message control signaling. The embodiment of the invention also discloses a preamble receiving method and related equipment. By adopting the invention, the access delay is reduced.

Description

technical field [0001] The present invention relates to the communication field, in particular to a configuration method, a sending method and related equipment of a preamble on an unlicensed carrier. Background technique [0002] With the rapid increase of communication traffic, the 3GPP authorized spectrum is increasingly insufficient to provide higher network capacity. In order to further improve the utilization of spectrum resources, 3GPP is discussing how to use unlicensed spectrum, such as 2.4GHz and 5.8GHz frequency bands, with the help of licensed spectrum. These unlicensed spectrums are currently mainly used by WiFi, Bluetooth, radar, medical and other systems. Generally speaking, access technologies designed for licensed frequency bands, such as LTE, are not suitable for use in unlicensed frequency bands, because access technologies such as LTE have very high requirements for spectrum efficiency and user experience optimization. However, the carrier aggregation f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W74/08
CPCH04W74/0833H04L27/2613H04L27/2602H04W74/0808H04L5/0053H04L5/0094H04L5/001H04L5/0048H04W74/006H04W74/085
Inventor 李明菊朱亚军张云飞马莉
Owner YULONG COMPUTER TELECOMM SCI (SHENZHEN) CO LTD