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Wireless communication method, system and receiver for multiple input multiple output system

一种无线通信、多输出的技术，应用在传输系统、数字传输系统、无线电传输系统等方向，能够解决字码复杂度位数要求增加等问题

Inactive Publication Date: 2014-10-08
HTC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as the size of the codebook increases, the complexity of codeword selection and the number of memory bits required will also increase substantially at the same time.

Method used

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  • Wireless communication method, system and receiver for multiple input multiple output system
  • Wireless communication method, system and receiver for multiple input multiple output system
  • Wireless communication method, system and receiver for multiple input multiple output system

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Embodiment Construction

[0034] figure 1 A schematic diagram of a wireless communication system according to an embodiment of the present invention is shown. Specifically, the wireless communication system 10 can be a multiple-input multiple-output (MIMO) system, and it includes at least one transmitter 200 and one receiver 100 . The receiver 100 is wirelessly connected to the transmitter 200 to obtain wireless services. In general, the transmitter 200 can be a website / base station, a user equipment (UE) or a mobile station, and the receiver 100 can be a UE, a mobile station or a website / base station. For example, the receiver 100 can be a mobile station, and the transmitter 200 can be the serving base station of the mobile station. For downlink transmission, the signal will be transmitted from the transmitter 200 to the receiver 100 . At the transmitter end, the transmitter 200 (for example: a base station) may at least include a storage device 210, a processing unit 220, a MIMO encoder 230, a pre...

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PUM

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Abstract

A wireless communication method, system and receiver for a MIMO system, which can be used to reduce the quantization effect of the precoding operation using a limited codebook when transmitting from the transmitter to the receiver in the MIMO system. The wireless communication method includes: firstly, obtaining downlink channel state information at a receiver. Then, at the receiver end, a group of precoding matrices among multiple precoding matrix labels or a group of precoding matrix labels among multiple precoding matrix labels in a limited codebook are selected according to the obtained downlink channel state information. Afterwards, the selected set of precoding matrix labels and one or more scalar coefficients are transmitted from the receiver to a transmitter. At the transmitter, a refined precoding matrix is ​​generated according to the set of precoding matrix labels and one or more scalar coefficients, and data transmission is performed between the transmitter and the receiver using the refined precoding matrix.

Description

technical field [0001] The present invention relates to a wireless communication system and a related wireless communication method, in particular to a method for reducing multiple-input multiple-out (MIMO) or multiple-input single-out (MISO) ) wireless communication method using a finite codebook for quantization effects of precoding operations in transmission from transmitter to receiver in a system. Background technique [0002] In wireless communication applications, multiple-input multiple-output (MIMO) technology involves using multiple antennas at the transmitter and receiver simultaneously to improve communication performance. MIMO technology can effectively increase data throughput and link range through higher spectral efficiency and link reliability or diversity without increasing additional bandwidth or transmission power. A commonly used function in MIMO technology is precoding. The so-called precoding is a signal processing technology for MIMO communication, w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L25/03H04B7/06
CPCH04B7/0639H04L25/0202H04L2025/03808H04B7/0663H04B7/0634H04L2025/03426H04L25/03343
Inventor 任宇智叶丙成孟令三蓝邦尝吴之尧
Owner HTC CORP
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