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Method and computer readable storage device for configuring CSI-RS for 3-d MIMO

A reference signal, wireless communication technology, applied in signaling distribution, pilot signal distribution, multiple use of transmission paths, etc., and can solve problems such as performance degradation

Active Publication Date: 2019-12-03
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This interference can degrade performance on both the downlink and uplink

Method used

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  • Method and computer readable storage device for configuring CSI-RS for 3-d MIMO
  • Method and computer readable storage device for configuring CSI-RS for 3-d MIMO
  • Method and computer readable storage device for configuring CSI-RS for 3-d MIMO

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Embodiment Construction

[0033] The detailed description set forth below in conjunction with the accompanying drawings is intended as a description of various configurations, and is not intended to limit the scope of the present disclosure. Rather, the detailed description includes specific details in order to provide a thorough understanding of inventive subject matter. It will be apparent to those skilled in the art that these specific details are not required in every case and that in some instances, well-known structures and components are shown in block diagram form for clarity of presentation.

[0034] The techniques described herein may be used for various wireless communication networks such as CDMA, TDMA, FDMA, OFDMA, SD-FDMA, and other networks. The terms "network" and "system" are often used interchangeably. CDMA network can implement such as Universal Terrestrial Radio Access (UTRA), Telecommunications Industry Association (TIA) and other wireless technologies. UTRA technologies includ...

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Abstract

In one aspect, a method of wireless communication includes transmitting a first reference signal from a base station using a first set of antenna ports, and receiving first feedback information at the base station from a user equipment (UE). The first feedback information may be associated with the first reference signal. The method includes: configuring a first precoder based on first feedback information, and sending a second reference signal to a UE based on the configuration of the first precoder. The method includes receiving, at a base station, second feedback information from a UE. The second feedback information may be associated with the second reference signal. The method includes configuring a second precoder based on second feedback information.

Description

technical field [0001] In general, aspects of the present disclosure relate to wireless communication systems, and more specifically, to configuring a precoder for transmitting signals from an antenna array. Background technique [0002] Wireless communication networks are widely deployed to provide various communication services such as voice, video, packet data, messaging, broadcast, and so on. These wireless networks may be multiple-access networks capable of supporting multiple users by sharing available network resources. Such networks, which are typically multiple-access networks, support communications for multiple users by sharing available network resources. One example of such a network is the Universal Terrestrial Radio Access Network (UTRAN). UTRAN is the Radio Access Network (RAN) defined as part of the Universal Mobile Telecommunications System (UMTS), a third generation (3G) mobile phone technology supported by the Third Generation Partnership Project (3GPP)...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/0456H04B7/06H04L5/00
CPCH04B7/0482H04B7/065H04L5/0051H04L5/0057H04L5/0023H04B7/063H04B7/0639H04L5/0012H04L5/0048H04W72/23H04B7/0421H04W72/044
Inventor C·魏Y·张侯纪磊
Owner QUALCOMM INC
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