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Method and device for measuring secondary carrier in asymmetric uplink carrier aggregation

A technology of carrier aggregation and auxiliary carrier, applied in the field of communication

Active Publication Date: 2016-05-11
CHENGDU TD TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since downlink reference signals need to be measured for cell handover, but the secondary carrier in asymmetric uplink carrier aggregation is only uplink, and how to measure the signal quality of the secondary carrier in asymmetric uplink carrier aggregation without downlink has not been proposed in the prior art. Therefore, how to measure the signal quality of the auxiliary carrier in the case of no downlink in the asymmetric uplink carrier aggregation is the technical problem to be solved by the present invention

Method used

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  • Method and device for measuring secondary carrier in asymmetric uplink carrier aggregation
  • Method and device for measuring secondary carrier in asymmetric uplink carrier aggregation
  • Method and device for measuring secondary carrier in asymmetric uplink carrier aggregation

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Embodiment Construction

[0034] 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.

[0035] Figure 1A It is a schematic diagram of asymmetric uplink carrier aggregation in the present invention, Figure 1B It is a schematic diagram of asymmetric uplink carrier aggregation decomposition in the present invention, Figure 1C It is a schematic diagram of a carrier aggregation cluster of asymmetric uplink carrier aggregation in the p...

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Abstract

The invention provides a method and device for measuring a secondary carrier in asymmetric uplink carrier aggregation. The method comprises that if a base station determines that the coverage range of the uplink secondary carrier is larger than that of the uplink primary carrier, the base station sends an RRC connection reconfiguration command to a terminal so as to add the uplink secondary carrier; if the coverage range of the uplink secondary carrier is smaller than that of the uplink primary carrier, and the base station determines that the terminal is placed in an overlapped area of the coverage ranges of the uplink primary carrier and the uplink secondary carrier, the base station sends an RRC connection reconfiguration command to the terminal so as to add the uplink secondary carrier; and when the base station determines that the terminal is placed in the edge of the overlapped area of the coverage ranges of the uplink primary carrier and the uplink secondary carrier, the base station sends an RRC connection reconfiguration command to the terminal so as to delete the uplink secondary carrier. Thus, the signal quality of the secondary carrier in asymmetric uplink carrier aggregation is measured, and the secondary carrier is added and deleted.

Description

technical field [0001] Embodiments of the present invention relate to communication technologies, and in particular to a method and device for measuring secondary carriers in asymmetric uplink carrier aggregation. Background technique [0002] In the current Long Term Evolution (LTE for short) system, in some industry 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. Therefore, in order to better meet a large number of uplink According to business requirements, an asymmetric uplink carrier aggregation technology is proposed in which the number of uplink carriers is greater than the number of downlink carriers. In the asymmetric uplink carrier aggregation technology, a carrier aggregation cluster consists of a single downlink carrier and at least two uplink carriers. [0003] In the prior art, the terminal generally only supports some uplink carriers, and can o...

Claims

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Application Information

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IPC IPC(8): H04W24/00
Inventor 程浩徐绍君王亮
Owner CHENGDU TD TECH LTD
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