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A method and device for applying drx in an unlicensed 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: 2018-09-07
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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  • A method and device for applying drx in an unlicensed frequency band
  • A method and device for applying drx in an unlicensed frequency band
  • A method and device for applying drx in an unlicensed 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-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 period 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 period; if the channel is detec...

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Abstract

Disclosed is a method for applying discontinuous reception (DRX) in an unauthorized frequency band, comprising: configuring a discontinuous reception (DRX) parameter for a user equipment (UE) so as to obtain a DRX activation time and a DRX sleep time of the UE, and sending the DRX parameter to the UE; setting information about an unauthorized frequency band clear channel assessment (CCA) time of the UE, sending first indication information to the UE for instructing the UE to wake up at the unauthorized frequency band CCA time, and monitoring a channel of an unauthorized frequency band; and sending data according to the unauthorized frequency band CCA time of the UE, and the DRX activation time and the DRX sleep time of the UE. The technical solution of the embodiments of the present invention is beneficial to enable a UE to effectively monitor a channel of an unauthorized frequency band and enable an LTE device and a WiFi device to more fairly share unauthorized frequency band resources, while the power consumption of the UE in the unauthorized frequency band is reduced.

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 Patents(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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