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Systems and methods for enhanced MIMO operation

A reporting and codebook technology, applied in transmission systems, radio transmission systems, diversity/multi-antenna systems, etc., can solve problems such as low overhead and increased load

Inactive Publication Date: 2015-11-04
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, some codebooks provide increased loading, some provide higher feedback accuracy, and some codebooks provide lower overhead

Method used

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  • Systems and methods for enhanced MIMO operation
  • Systems and methods for enhanced MIMO operation
  • Systems and methods for enhanced MIMO operation

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Embodiment Construction

[0028] The 3rd Generation Partnership Project (3GPP) is a collaboration between groups of telecommunications associations to define globally applicable third generation (3G) mobile phone specifications. 3GPP Long Term Evolution (LTE) is a 3GPP project aimed at improving the Universal Mobile Telecommunications System (UMTS) mobile phone standard. 3GPP may define specifications for next generation mobile networks, mobile systems and mobile devices. In 3GPP LTE, a mobile station or device may be referred to as "User Equipment" (UE).

[0029] The specifications described herein may be described with reference to one or more specifications such as 3GPP Release-8, 3GPP Release-9, 3GPP Release-10, 3GPP Release-11, 3GPP Release-12, LTE, and Long Term Evolution-Advanced (LTE-A) Disclosed systems and methods. However, the concepts can also be applied to other wireless communication systems.

[0030] Various configurations are now described with reference to the drawings, wherein like...

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Abstract

A method for channel state information (CSI) reporting by a wireless communication device is described. The method includes determining a codebook for a CSI report corresponding to four transmit antenna (4Tx) transmissions from a base station. The codebook has a dual codebook structure. The method also includes generating the CSI report using the codebook. The method further includes transmitting the CSI report to a base station.

Description

[0001] related application [0002] This application is related to and claims priority to US Provisional Patent Application Serial No. 61 / 775,016 filed March 8, 2013 for "CODEBOOK DESIGN AND CSI FEEDBACK FOR ENHANCED MIMO OPERATION IN LTE." This application also relates to and claims priority to US Provisional Patent Application Serial No. 61 / 821,867, filed May 10, 2013, for "CODEBOOK DESIGN AND CSI FEEDBACK FOR ENHANCED MIMO OPERATION IN LTE." This application also relates to and claims priority to US Provisional Patent Application Serial No. 61 / 832,310, filed June 7, 2013, for "CODEBOOK DESIGN AND CSI FEEDBACK FOR ENHANCED MIMO OPERATION IN LTE." technical field [0003] In general, the present disclosure relates to wireless communication systems. More specifically, the present disclosure relates to systems and methods for codebook design and channel state information (CSI) feedback for enhanced multiple-input multiple-output (MIMO) operation in Long Term Evolution (LTE). ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/06
CPCH04B7/0626H04B7/0469H04B7/0478H04B7/0639H04B7/0695H04B7/0647
Inventor S·盖尔霍费尔P·加尔W·陈徐浩
Owner QUALCOMM INC