Uplink signal transmission and reception using an optimized rank 3 codebook

A signal and link technology, applied in the field of wireless mobile communication systems, can solve problems such as peak-to-average power ratio degradation

Inactive Publication Date: 2016-08-03
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this case, the transmitter structure should be changed to implement MIMO technology so that the Peak-to-Average Power Ratio (PARP) or Cubic Metric (CM) characteristics may be degraded

Method used

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  • Uplink signal transmission and reception using an optimized rank 3 codebook
  • Uplink signal transmission and reception using an optimized rank 3 codebook
  • Uplink signal transmission and reception using an optimized rank 3 codebook

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Embodiment Construction

[0040] Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.

[0041] The detailed description will be given below with reference to the accompanying drawings, and is intended to explain exemplary embodiments of the present invention, rather than to show the only embodiments that can be implemented according to the present invention. The following detailed description includes specific details in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without such specific details. For example, the following description will focus on specific terms, but the present invention is not limited thereto, and any other terms may be used to represent the sa...

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Abstract

A method of transmitting and receiving uplink signals using an optimized rank 3 codebook is disclosed. The optimized rank 3 codebook includes 6 sets of precoding matrices, each with 1 variable of magnitude 1. Preferably, the optimized 4Tx rank 3 codebook has 12 precoding matrices, and two precoding matrices are selected from each of the above 6 precoding matrix groups considering the chord distance and the number of precoding matrices.

Description

technical field [0001] The present invention relates to a wireless mobile communication system, and more specifically, to a communication system based on a Multiple Input Multiple Output (MIMO) scheme. Background technique [0002] MIMO technology is an acronym for Multiple Input Multiple Output technology. MIMO technology uses multiple transmit (Tx) antennas and multiple receive (Rx) antennas to improve the efficiency of transmitting and receiving (Tx / Rx) data. In other words, the MIMO technology allows multiple antennas (hereinafter referred to as "multi-antennas") to be used at the transmitting end and the receiving end of the wireless communication system, so that capacity or performance can be improved. For convenience of description, the term "MIMO" may also be considered as a multi-antenna technology. [0003] In more detail, MIMO technology does not depend on a single antenna path for receiving messages. In contrast, MIMO technology collects data fragments receive...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L27/28H04B7/04
CPCH04B7/0639H04L25/03343H04L25/03929H04L27/2601H04L2025/03426H04B7/0486H04B7/0465H04L27/2615H04L27/2636H04B7/0404H04B7/0456H04W72/563H04L25/03923H04B7/0473
Inventor 鲁俞真卢东昱姜秉祐金奉会李大远
Owner LG ELECTRONICS INC
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