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System and method for intelligent selection of ri/pmi

A technology for selecting values ​​and decision tables, applied in the field of channel feedback, which can solve the problems of complex systems, irrespective of inter-cell beam coordination, and increased overhead.

Active Publication Date: 2019-08-16
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, conventional systems do not consider inter-cell beam coordination
Dynamic "beam coordination" between neighboring UEs requires the execution of complex algorithms and real-time information exchange between BSs, adding overhead and making the system more complex

Method used

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  • System and method for intelligent selection of ri/pmi
  • System and method for intelligent selection of ri/pmi
  • System and method for intelligent selection of ri/pmi

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Embodiment Construction

[0018] In this patent document, the following description Figure 1 to Figure 8 , and the various embodiments illustrating the principles of the invention are by way of illustration only and should not be construed as limiting the scope of the invention. Those skilled in the art will understand that the principles of the invention may be implemented in any type of suitably arranged device or system.

[0019] Embodiments of the present disclosure provide a method for a user equipment (UE) to determine which rank indicator (RI), precoding matrix indicator (PMI) or RI / PMI pair to feed back to a base station (BS). During the determination process, the UE should not only consider its own receiving and transmitting performance (that is, individual optimization), but also consider minimizing the interference generated in other UEs due to the transmission from the BS to the UE (that is, system optimization). In determining, the UE utilizes an Interference Interaction Information (MI)...

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Abstract

An apparatus in a user equipment (UE) node is configured to perform a channel feedback method. The method includes determining a plurality of values ​​of a receiver table based on a common reference signal received from a base station and one or more channel conditions. The method also includes determining a plurality of values ​​for a decision table based on corresponding values ​​in the receiver table and a predetermined interference table. The method further includes selecting a value from the decision table. Additionally, the method includes transmitting to the base station at least one of a rank indicator (RI) value and a precoding matrix indicator (PMI) value associated with the selected value in the decision table.

Description

[0001] CROSS-APPLICATION OF RELATED APPLICATIONS AND CLAIMED PRIORITY [0002] This application claims priority to U.S. Nonprovisional Patent Application No. 14 / 685,077, filed April 13, 2015, entitled "System and Method for Intelligently Selecting RI / PMI," which claims April 14, 2014 Priority to U.S. Provisional Patent Application No. 61 / 979,362, entitled "Intelligent RI / PMI Selection," filed on May 1, 2009, both of which are incorporated herein by reference in their entirety. technical field [0003] The present disclosure basically relates to channel feedback in a wireless communication system, and in particular to a system and method for intelligently selecting a rank indicator (RI) and a precoding matrix indicator (PMI). Background technique [0004] In Long Term Evolution (LTE) downlink multiple-input multiple-output (MIMO) transmission mode, each user equipment (UE) node assigns the "optimal" rank indicator (RI) and / or precoding matrix indicator (PMI) Feedback to the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/06
CPCH04B7/063H04B7/0639H04J11/0053H04B7/0417H04L5/0023H04J11/0056
Inventor 赵仁健马正翔李奥纳德·皮亚齐王健
Owner HUAWEI TECH CO LTD