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System and method for joint mimo transmission and compression for interference mitigation with cooperative relay

一种协方差、传输信号的技术，应用在传输系统、无线电传输系统、线路传输零部件等方向，能够解决干扰降低信号增强等问题

Inactive Publication Date: 2017-09-26
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This enables the use of device-to-device communication for interference reduction and signal enhancement

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  • System and method for joint mimo transmission and compression for interference mitigation with cooperative relay
  • System and method for joint mimo transmission and compression for interference mitigation with cooperative relay
  • System and method for joint mimo transmission and compression for interference mitigation with cooperative relay

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Embodiment Construction

[0019] The making and using of the presently preferred embodiments are discussed in detail below. It should be appreciated, however, that the present invention provides many applicable inventive concepts that can be embodied in a wide variety of specific contexts. The specific embodiments discussed are merely illustrative of specific ways to make and use the invention, and do not limit the scope of the invention.

[0020] Embodiments of a system and a method for realizing interference reduction and signal enhancement in downlink wireless communication of a MIMO system are provided. The MIMO multi-antenna joint reception scheme via device-to-device communication is used to enhance the detection of target signals and reduce interference, such as out-of-cell interference (from multiple cells or base stations), across cooperating user terminals. Therefore, the downlink transmission of remote or cell edge users can be significantly improved. The cooperative terminals include a de...

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Abstract

System and method embodiments are provided for interference mitigation and signal enhancement in downlink wireless communications for MIMO systems with device-to-device communications across cooperating user terminals. In an embodiment, a network controller initializes a transmit covariance for beam-forming a transmit signal of the MIMO transmission from a base-station to a destination terminal and a relay terminal, and initializes a quantization noise covariance used for compressing a relay signal from the relay terminal to the destination. The transmit covariance and the quantization noise covariance are initialized in accordance with known channel state information and with statistics of noise and interference for transmit and relay channels. The transmit covariance and the quantization noise covariance are then jointly optimized using an iterative algorithm in accordance with a capacity constraint on a relay link between the relay terminal and the destination terminal and a transmit signal power constraint of the base-station.

Description

[0001] This application requires the filing of U.S. Provisional Patent Application No. 62 / 057122, filed September 29, 2014, by Seyed Arvin Ayoughi et al. The earlier application claims priority, the content of which is incorporated herein by reference. technical field [0002] The present invention relates to networking and wireless communication, and in particular, in a specific embodiment, relates to a system and method for joint multiple input multiple output (Multiple Input Multiple Output, MIMO for short) transmission and compression to reduce interference by using cooperative relay. Background technique [0003] In a MIMO system, multiple transmit and receive antennas are used to increase the capacity of the wireless link to take advantage of multipath propagation in all directions. A base station or user terminal can simultaneously transmit and / or receive more than one data signal on the same radio channel through multipath propagation. The user terminal is any user ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B3/36
CPCH04B7/026H04B7/0413H04B7/0617H04W16/28H04W88/04
Inventor 赛亚达文·阿勇盖默罕默德哈迪·巴里喻为
Owner HUAWEI TECH CO LTD
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