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Measurement pilot configuration method and device in FD-MIMO (Full Dimension Multi-Input-Multi-Output) system

A technology of measurement pilot and measurement mode, which is applied in the field of measurement pilot configuration and can solve problems such as overhead

Inactive Publication Date: 2018-11-02
POTEVIO INFORMATION TECH CO LTD
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Problems solved by technology

[0007] Aiming at the defects of the prior art, the present invention provides a measurement pilot configuration method and device in an FD-MIMO system, which can solve the problem of a large amount of CSI-IM resource and / or ZP CSI-RS resource overhead in the prior art

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  • Measurement pilot configuration method and device in FD-MIMO (Full Dimension Multi-Input-Multi-Output) system
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  • Measurement pilot configuration method and device in FD-MIMO (Full Dimension Multi-Input-Multi-Output) system

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[0062] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0063] figure 1 is a schematic flowchart of a method for configuring measurement pilots in an FD-MIMO system in an embodiment of the present invention, as shown in figure 1 As shown, the method includes the following steps:

[0064]S1: After the user equipment UE enters the network, the network side selects a measurement pilot resource from a preset non-cooperative measurement pilot resource pool to configure the measurement pilot for the UE, so that the UE r...

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Abstract

The invention provides a measurement pilot configuration method and device in an FD-MIMO (Full Dimension Multi-Input-Multi-Output) system. The method comprises the steps that after new UE enters a network, resources are allocated from a non-coordinated resource pool in an existing mode, and channel information is reported; the network determines whether the UE needs to participate in an inter-cellcoordinated shaping process or not; if the UE needs to participate in the inter-cell coordinated shaping process, the network selects specific coordinated measurement pilot resources from a preset coordinated measurement pilot resource pool to carry out measurement pilot reconfiguration on the UE, and moreover configures a short-period or long-period measurement mode to the UE through adoption ofa Gray type mixed base sequence. According to the method and the device, a precoding scheme for precoding measurement pilots of coordinated transmitting cells is defined in a Gray type mixed base combined sequence mode, and configuration and planning problems of CSI-RS and CSI-IM resources can be effectively solved.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a measurement pilot configuration method and device in an FD-MIMO system. Background technique [0002] The Third Generation Partnership Project (The Third Generation Partnership, 3GPP for short) standard introduces various coordinated multi-point transmission (Coordinated Multi-Point Transmission, CoMP for short) technologies since Rel-11 to enhance the system performance of the LTE-A. However, with recent advances in active antennas and Full Dimension Multi-Input-Multi-Output (FD-MIMO) technology, it has become necessary to improve the LTE CoMP technology. This is because operators are deploying more networks and base stations to meet the needs of rapidly increasing user data services on commercial 4G networks, especially in hotspot areas. The FD-MIMO base station that uses a large number of antenna elements combined with active antenna technology can enhance ne...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00H04B7/06
CPCH04B7/0626H04B7/0639H04L5/0048
Inventor 李晋声史满姣冯莉钟勤李迪
Owner POTEVIO INFORMATION TECH CO LTD
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