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A kind of IAA-LTE system data transmission method, terminal and base station

A technology of downlink data and detection method, which is applied in the field of LTE system, can solve the problems of missing cycle and affecting the measurement of channel state information in the license-free frequency band, and achieve the effect of correct CSI measurement

Active Publication Date: 2020-01-03
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally speaking, CSI-RS resources are configured periodically. For opportunistic transmission in license-exempt frequency bands, if some subframes do not support CSI-RS data transmission, periodic CSI-RS transmission may be missed, thereby affecting Measurement of channel state information in license-exempt frequency band by user equipment

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  • A kind of IAA-LTE system data transmission method, terminal and base station
  • A kind of IAA-LTE system data transmission method, terminal and base station
  • A kind of IAA-LTE system data transmission method, terminal and base station

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Embodiment Construction

[0046] Embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0047] Figure 4 It is a schematic diagram of data transmission between an access network device and a user equipment. Should Figure 4 It is a simple schematic diagram of a wireless communication system, and does not limit the application scenarios of the present invention; for example, the wireless communication system of the present invention may be an LTE system independently operating in a license-free frequency band, or a license-assisted access LTE system, Namely LAA-LTE system.

[0048] Figure 4 In the method, the access network device communicates with the user equipment, and in an example, the access network device is a base station. The base station may be a base station corresponding to a cell (cell), such as a macro base station, or a base station corresponding to a small cell. Figure 4Only the macro base station is used as an example to illu...

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Abstract

The invention relates to an LAA-LTE system data transmission method, user equipment and access network equipment. The data receiving method includes: the user equipment determines first information of a first cell; the user equipment determines a first subframe according to the first information, and the downlink data transmission length of the first subframe is less than a first threshold; The user equipment determines the data transmission characteristic of the cell in the first subframe according to a preset condition, so as to receive data including the first subframe according to the data transmission characteristic. Therefore, the present invention ensures the correct identification of reference signals such as DRS by standardizing the data transmission characteristics of base stations or terminals, and can be applied in LTE systems.

Description

[0001] This application is a divisional application of the application number 201580002276.6 and the title of the invention is "A LAA-LTE system data transmission method, terminal and base station". technical field [0002] The invention relates to the technical field of communication, in particular to an LTE system working in a license-free frequency band. Background technique [0003] In a wireless communication network, each device needs to use frequency resources for information transmission, and the frequency resources are also called spectrum or frequency band. Frequency bands can be divided into authorized frequency bands and license-free frequency bands, and license-free frequency bands are also called license-free frequency bands. Licensed frequency bands are frequency resources exclusive to some operators, and unlicensed frequency bands are common frequency resources in wireless communication networks. With the development of communication technology, the amount o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W56/00H04L5/00H04L27/26
CPCH04L5/005H04L27/0006H04L27/2613H04W56/0005H04L27/2602H04L27/2657H04L27/2678H04W72/0446H04L27/2607H04W72/20
Inventor 郑娟吴作敏官磊李强
Owner HUAWEI TECH CO LTD