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Methods and devices for transmitting or receiving wake-up signals

A wake-up signal and wake-up state technology, which is applied to the device dedicated to the receiver, characterized by signaling, transmission modification based on link quality, etc., can solve the problems of wasting terminal energy, no data transmission, etc., and achieve speed improvement Effect

Inactive Publication Date: 2019-04-05
MEIZU TECH CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

This method is to perform blind detection of the downlink control channel in the wake-up state, but there is no data transmission in the wake-up state, and the blind detection in this case wastes terminal energy

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  • Methods and devices for transmitting or receiving wake-up signals
  • Methods and devices for transmitting or receiving wake-up signals
  • Methods and devices for transmitting or receiving wake-up signals

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Embodiment Construction

[0041] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0042] In the following description, many specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here, therefore, the protection scope of the present invention is not limited to the specific details disclosed below. EXAMPLE LIMITATIONS.

[0043] The embodiment of the first aspect of the present invention proposes a method for sending a wake-up signal for a base station, image 3 A schematic flowchart of a method for sending a wake-up sign...

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Abstract

The invention provides a method and a device for transmitting wake-up signals for base stations and a method and a device for receiving wake-up signals for terminals. The method for transmitting wake-up signals for base stations includes the following steps: configuring the parameters of constant amplitude zero autocorrelation sequences used as wake-up signals for terminals; and transmitting the parameters of the constant amplitude zero autocorrelation sequences to the terminals to enable each terminal to determine the constant amplitude zero autocorrelation sequence transmitted to the terminal. According to the technical scheme proposed in the invention, because the wake-up signal adopts orthogonal constant amplitude zero autocorrelation sequences, a base station can transmit the constantamplitude zero autocorrelation sequences of the wake-up signals to multiple terminals on the same time-frequency resource, each terminal can determine whether the wake-up signal of the terminal exists in the multiple wake-up signals multiplexed on the time-frequency resource by correlation detection, and resource overhead is reduced.

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular, to a method for sending a wake-up signal and a device for sending a wake-up signal for a base station, and a method for receiving a wake-up signal and a device for receiving a wake-up signal for a terminal. Background technique [0002] 3GPP (3rd Generation Partnership, Third Generation Partnership Project) proposes to use DRX (discontinuous reception, discontinuous reception) for terminals in the RRC-Connected (Radio Resource Control-Connected, Radio Resource Control-Connected) state, that is, periodic Wake up to perform blind detection of the downlink control channel for several milliseconds, such as figure 1 As shown, if the downlink control channel sent to the terminal is not detected, it can enter the off state after the wake-up is completed, and if the downlink control channel sent to the terminal is detected, the wake-up state remains until the end of data t...

Claims

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Application Information

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IPC IPC(8): H04L1/00
CPCH04L1/0027H04L1/0039
Inventor 付婷
Owner MEIZU TECH CO LTD
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