Information transmission method under unauthorized frequency band, network equipment and terminal

An unlicensed frequency band, information transmission technology, applied in the direction of adjustment of transmission mode, transmission modification based on link quality, transmission system, etc., can solve problems such as DMRS cannot be sent, data cannot be demodulated, etc.

Active Publication Date: 2018-12-11
VIVO MOBILE COMM CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] The embodiment of the present invention provides an information transmission method, network equipment, and terminal in an unlicensed frequency band to solve the problem that

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  • Information transmission method under unauthorized frequency band, network equipment and terminal
  • Information transmission method under unauthorized frequency band, network equipment and terminal
  • Information transmission method under unauthorized frequency band, network equipment and terminal

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Embodiment Construction

[0042] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0043]The terms "first", "second" and the like in the specification and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein, for example, can be practiced in sequences other than those illustrated...

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Abstract

The invention discloses an information transmission method under an unauthorized frequency band, a network equipment and a terminal. The method comprises the following steps: according to the idle state of an unauthorized frequency band channel, determining the initial transmission position of the unauthorized frequency band channel in a current time domain transmission unit; If the start transmission position is located behind the start position of the current time domain transmission unit, a demodulated reference signal is transmitted to the terminal at a candidate transmission position of the demodulated reference signal. In order to solve the sending problem of NR-PDCCH and DMRS in the NR-LAA system due to the uncertainty of the available time of unauthorized frequency band channel, NR-PDCCH and DMRS are sent by adding candidate transmission positions of NR-PDCCH and/or DMRS to guarantee the normal demodulation of the received data information by the terminal.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to an information transmission method, network equipment and terminal in an unlicensed frequency band. Background technique [0002] In a future communication system, an unlicensed frequency band (unlicensed band) can be used as a supplement to a licensed frequency band (licensed band) to help operators expand service capacity. In order to keep the deployment consistent in the New Radio (NR, New Radio) system and maximize the unlicensed access based on the NR system as much as possible, the unlicensed frequency band can work in the 5GHz, 37GHz and 60GHz frequency bands. The large bandwidth (80MHz or 100MHz) of the unlicensed frequency band can reduce the implementation complexity of the base station and the terminal (UE, User Equipment), but since the unlicensed frequency band is shared by multiple radio access technologies (RAT, Radio Access Technology), such as WiFi...

Claims

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Application Information

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IPC IPC(8): H04L5/00H04L1/00
CPCH04L1/0006H04L5/0048H04L5/0091
Inventor 姜蕾孙晓东
Owner VIVO MOBILE COMM CO LTD
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