Method, device and system for transmitting reference signals

A reference signal and signal technology, which is applied in the field of transmission reference signals, can solve problems such as inability to support vertical channel estimation, inability to support 3D beamforming, inability to obtain vertical channel information, etc., and achieve the goal of improving throughput and average throughput Effect

Active Publication Date: 2014-03-26
DATANG MOBILE COMM EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing reference signal configuration only includes the configuration of the horizontal dimension reference signal, therefore, it can only support the estimation of the horizontal dimension channel, but cannot support the estimation of the vertical dimension channel, nor can it support 3D beamforming
[0012] To sum up, the existing referen

Method used

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  • Method, device and system for transmitting reference signals
  • Method, device and system for transmitting reference signals
  • Method, device and system for transmitting reference signals

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Experimental program
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Effect test

Embodiment 1

[0211] Embodiment 1: The horizontal-dimension reference signal and the vertical-dimension reference signal are configured in different subframes, and both adopt periodic configuration, and reuse the CSI-RS reference signal (that is, adopt the CSI-RS configuration information defined in the 3GPP standard, such as transmitting Period, subframe offset and other configuration information) to configure the horizontal dimension reference signal and the vertical dimension reference signal, the horizontal dimension reference signal and the vertical dimension reference signal can be mapped to the same or different frequency domain resources; assuming that the horizontal dimension reference signal and The vertical dimension reference signal is configured with the same transmission period P and different subframe offsets Δ H (the subframe offset of the horizontal dimension reference signal), Δ V (the subframe offset of the vertical dimension reference signal);

[0212] Then the n+Δ H T...

Embodiment 2

[0215]Embodiment 2: The horizontal-dimensional reference signal and the vertical-dimensional reference signal adopt periodic configuration, reuse the CSI-RS reference signal, and the horizontal-dimensional reference signal and the vertical-dimensional reference signal use the same or different frequency domain resources; assuming that the horizontal-dimensional reference signal and the vertical Dimensional reference signals are configured with different transmission periods and the same subframe offset, that is, the transmission period of the horizontal dimension reference signal is P H , and the sending period of the vertical dimension reference signal is P V , and the subframe offset is Δ, where P V =KP H , K is a positive integer;

[0216] Then configure the horizontal dimension reference signal in the n+Δth subframe, and the n+Pth subframe H The +Δ subframe configures the horizontal dimension reference signal, ..., the n+KP H +Δ subframes are configured with horizontal...

Embodiment 3

[0219] Embodiment 3: The horizontal dimension reference signal and the vertical dimension reference signal are configured in different subframes, and both adopt periodic configuration, reuse the CSI-RS reference signal, and the horizontal dimension reference signal and the vertical dimension reference signal use the same or different frequency domain resources ; Assume that the horizontal dimension reference signal and the vertical dimension reference signal are configured with different transmission periods and different subframe offsets, that is, the transmission period of the horizontal dimension reference signal is P H , and the transmission period of the vertical dimension reference signal is P V , and the subframe offset of the horizontal dimension reference signal is Δ H , and the subframe offset of the vertical dimension reference signal is Δ V , where P V =KP H , K is a positive integer;

[0220] Then the n+Δ H The horizontal dimension reference signal is configu...

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Abstract

The invention relates to the field of wireless communication technology, in particular to a method, device and system for transmitting reference signals, and aims to solve the problems in the prior art that estimation of a vertical dimension channel can not be supported and 3D beam forming can not be supported. The method provided by the embodiment of the invention comprises the following steps: a network side determines a subframe for bearing reference signals, determines a pilot frequency port for the reference signals, and also sends the reference signals which are allocated in the pilot frequency port in the subframe, wherein the pilot frequency port at least comprises a row of horizontal dimension pilot frequency ports and a list of vertical dimension pilot frequency ports, reference signals allocated in the horizontal dimension pilot frequency ports are horizontal dimension reference signals, and reference signals allocated in the vertical dimension pilot frequency ports are vertical dimension reference signals. According to the method, device and system, provided by the embodiment of the invention, since the vertical dimension reference signals can be sent out directly, the channel estimation of the vertical dimension pilot frequency ports can be achieved, and the dynamic 3D beam forming technology can be achieved.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method, device and system for transmitting a reference signal. Background technique [0002] Currently, the 3rd Generation Mobile Communications Standardization Partnership Project (3 rd The Long Term Evolution (LTE) standard of the Generation Partnership Project (3GPP) has greatly increased the cell peak data rate, but the cell edge rate is much lower than the cell peak rate. Research on device (User Equipment, UE) throughput and cell average throughput. [0003] In the LTE system, the half-power beam width (Half-Power Beam Width, HPBW) of the traditional antenna (antenna) array in the vertical direction is relatively narrow, and has a fixed downtilt angle (that is, for each user equipment in the cell in the vertical direction Provide fixed beams), making it difficult to achieve beam scheduling and interference coordination between adjacent cells in t...

Claims

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Application Information

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IPC IPC(8): H04W72/04H04L5/00
CPCH04W72/04H04L1/00H04L5/0023H04L25/0204H04B7/0617H04B7/0684H04L5/0051H04L5/005H04L5/0048H04W16/28H04W72/0446
Inventor 荆梅芳苏昕拉盖施高秋彬
Owner DATANG MOBILE COMM EQUIP CO LTD
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