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Downlink data transmission method and backhaul base station

A technology of downlink data and transmission method, applied in the field of communication, can solve the problem of low reliability of data transmission

Active Publication Date: 2018-03-13
CHINA UNITED NETWORK COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Embodiments of the present invention provide a downlink data transmission method and a backhaul base station to solve the problem of low data transmission reliability in the prior art

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  • Downlink data transmission method and backhaul base station
  • Downlink data transmission method and backhaul base station

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Embodiment Construction

[0036] 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 making creative efforts belong to the protection scope of the present invention.

[0037] In order to clearly describe the technical solutions of the embodiments of the present invention, in the embodiments of the present invention, words such as "first" and "second" are used to distinguish the same or similar items with basically the same function or effect. Those skilled in the art can understand that words such as "first" and "second" do not limit the quantity and execution order.

[0038] The modulation order and the modulation method in...

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Abstract

Embodiments of the invention provide a downlink data transmission method and a backhaul base station, relating to the technical field of communication and solving a low reliability problem of data transmission in the prior art. According to the transmission method, the backhaul base station receives downlink data that is sent by a core network and is to be sent to a destination base station; if aCQI regulation condition is met, a second CQI index value is determined according to a first CQI index value of a wireless backhaul link fed back by the destination base station, wherein a modulationorder of a modulation manner corresponding to the second CQI index value is lower than a modulation order of a modulation manner corresponding to the first CQI index value, and the CQI regulation condition includes: the use condition of current wireless resource of the backhaul base station is lower than or equal to a load threshold, and the first CQI index value is within a preset range; a firstMCS index value is determined according to the second CQI index value, and the first MCS index value is sent to the destination base station; and downlink data is sent to the destination base stationaccording to the first MCS index value. The method is applied to downlink data transmission.

Description

technical field [0001] The present invention relates to the technical field of communications, in particular to a downlink data transmission method and a backhaul base station. Background technique [0002] With the rapid development of mobile Internet services, mobile networks also need to deploy more base stations to increase network capacity. The deployment of the base station first needs to solve the problem of data backhaul, that is, to complete the data intercommunication between the base station and the mobile core network. The traditional way of data backhaul is to directly deploy optical fiber between the base station and the transmission switch, so as to provide high-speed, stable, and high-reliability transmission guarantee. However, the deployment cost of the straight-through optical fiber transmission method is high, and the construction time is long. With the gradual increase in the deployment of base stations, not all site sites are eligible for the deploymen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00
CPCH04L1/0026
Inventor 张勍盛煜李先达单丽雅
Owner CHINA UNITED NETWORK COMM GRP CO LTD
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