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Control method and apparatus for secondary carrier in asymmetric uplink carrier aggregation

A technology of carrier aggregation and control method, applied in the field of communication, can solve the problems such as secondary carrier in the asymmetric uplink carrier aggregation which is not proposed

Active Publication Date: 2016-03-30
CHENGDU TD TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, in some industrial network applications, there will be a large number of video surveillance services, that is, the demand for uplink services is greater than that for downlink services. The existing carrier aggregation solutions cannot well meet the needs of industrial networks. Uplink service requirements require the introduction of asymmetric uplink carrier aggregation technology in which the number of uplink carriers is greater than the number of downlink carriers. However, how to control the auxiliary carrier in asymmetric uplink carrier aggregation has not been proposed in the prior art. Therefore, how to Controlling the secondary carrier is the technical problem to be solved by the present invention

Method used

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  • Control method and apparatus for secondary carrier in asymmetric uplink carrier aggregation
  • Control method and apparatus for secondary carrier in asymmetric uplink carrier aggregation
  • Control method and apparatus for secondary carrier in asymmetric uplink carrier aggregation

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Embodiment Construction

[0050] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. 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.

[0051] Figure 1A It is a schematic diagram of the asymmetric uplink carrier aggregation based on the TDD system of the present invention, Figure 1B It is a schematic diagram of the decomposition of the asymmetric uplink carrier aggregation based on the TDD system of the present invention, Figure 1C It is a schematic diagram of a carrier aggreg...

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Abstract

The embodiment provides a control method and apparatus for a secondary carrier in asymmetric uplink carrier aggregation. The method comprises the steps that a base station transmits configuration information of an uplink secondary carrier configured for the terminal to a terminal, wherein the configuration information comprises carrier-class public configuration information and / or terminal-class configuration information; and further, the base station schedules the uplink secondary carrier via a physical downlink control channel (PDCCH) of a downlink primary carrier based on the aggregation manner of the primary carrier and the uplink secondary carrier so that the terminal can schedule a physical uplink shared channel (PUSCH) for the base station via the uplink secondary carrier, the control on the secondary carrier in the asymmetric uplink carrier aggregation is achieved, and thus, the uplink throughput is significantly improved.

Description

technical field [0001] Embodiments of the present invention relate to communication technologies, and in particular to a method and device for controlling a secondary carrier in asymmetric uplink carrier aggregation. Background technique [0002] In the current Long Term Evolution (LTE for short) system, a single carrier only supports a maximum system bandwidth of 20M. In order to meet a larger bandwidth requirement, a carrier aggregation technology needs to be used. [0003] In the 3rd Generation Partnership Project (The 3rd Generation Partnership Project, 3GPP for short) protocol, the aggregation of a maximum of 5 carriers is supported, and the number of downlink carriers is required to be greater than or equal to the number of uplink carriers. [0004] However, in some industrial network applications, there will be a large number of video surveillance services, that is, the demand for uplink services is greater than that for downlink services. The existing carrier aggrega...

Claims

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Application Information

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IPC IPC(8): H04L5/00H04W72/12
CPCH04L5/00
Inventor 徐绍君
Owner CHENGDU TD TECH LTD
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