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Method and device for using DRX in non-authorized frequency band

A technology of unlicensed frequency bands and licensed frequency bands, applied in the field of DRX application in unlicensed frequency bands

Active Publication Date: 2015-07-29
YULONG COMPUTER TELECOMM SCI (SHENZHEN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using Discontinuous Reception (DRX) technology in the unlicensed frequency band can effectively reduce the power consumption of the UE, but there is currently no effective method to combine the LBT mechanism with the DRX mechanism

Method used

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  • Method and device for using DRX in non-authorized frequency band
  • Method and device for using DRX in non-authorized frequency band
  • Method and device for using DRX in non-authorized frequency band

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Embodiment Construction

[0112] In order to allow LTE devices and WiFi devices to enjoy resources more fairly on the unlicensed frequency band, 3GPP introduced the Listen Before Talk (LBT) mechanism in LAA, which is used for monitoring and detection of LTE devices on the unlicensed frequency band. free channel. At present, the LBT mechanism is mainly divided into the frame structure-based LBT mechanism and the load-based LBT mechanism.

[0113] For the principle of the frame structure-based LBT mechanism, see figure 1 ,Such as figure 1 As shown, an idle channel detection period includes periodic CCA time, channel occupation time and idle time, and the periodic CCA time is located at the beginning of each idle channel detection period. Before sending data, the LTE device monitors whether the channel is idle within the periodic CCA time. If the channel is idle and sends data during the subsequent channel occupation time, the channel is released during the idle time of the detection cycle; if the chann...

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Abstract

The embodiment of the invention discloses a method for using DRX in a non-authorized frequency band. The method comprises the steps of configuring non-continuous received DRX parameters for UE to obtain the DRX activating time and the DRX sleeping time of the UE; sending the DRX parameters to the UE; setting information of CCA detection time of an idle channel of the UE at the non-authorized frequency band; sending the first indication information to the UE to indicate the UE to wake up at the CCA time in the non-authorized frequency band so as to monitor the channel of the non-authorized frequency band; sending the data according to the CCA time of the UE at the non-authorized frequency band, and the DRX activating time and the DRX sleep time of the UE. According to the technical scheme, the method has the advantages that the UE can effectively monitor the channel of the non-authorized frequency band while the power consumption of the UE at the non-authorized frequency band is reduced; the LTE device and the WiFi device can fairly share the resources in the non-authorized frequency band.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method and device for applying DRX in an unlicensed frequency band. Background technique [0002] With the rapid increase of mobile communication traffic, the licensed frequency bands in the 3GPP network are increasingly unable to meet the increasing traffic volume. In order to further improve the efficiency of frequency resources on the limited frequency resources, 3GPP organizations turn to access to unlicensed frequency bands. For technical research, the LTE Assisted Access (LAA) technology is introduced in order to use the unlicensed frequency band with the help of the Long Term Evolution (LTE) access technology on the licensed frequency band. Compared with WiFi operating in the unlicensed frequency band, LTE access technology can provide higher frequency efficiency and more comprehensive location coverage, better service quality and mobility support. [0003] The W...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/02H04L5/00
CPCH04W52/0209H04W76/28H04W52/02Y02D30/70
Inventor 李明菊朱亚军雷艺学张云飞
Owner YULONG COMPUTER TELECOMM SCI (SHENZHEN) CO LTD
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