摘要:
The present invention relates to a receiving device for a MIMO, communication system (500), the receiving device (100) comprising a receiver (102) configured to receive a MIMO signal (y) comprising a plurality of transmit symbols (x) over a MIMO channel, wherein the plurality of transmit symbols (x) corresponds to different transmission layers, a processor (104) configured to obtain right-singular vectors (v) of a channel matrix (H) associated with the MI MO channel, perform MI MO detection based on at least one initial search vector (xini) and the right-singular vectors (v) to generate at least one set of candidate vectors and a corresponding set of decision metric values, detect the plurality of transmit symbols (x) based on the generated set f candidate vectors and the corresponding set of decision metric values. Furthermore, the present invention also relates to a database, corresponding methods, a computer program, and a computer program product. Furthermore, the present invention also relates to a communication device, a corresponding method, a computer program, and a computer program product.
摘要翻译:本发明涉及用于MIMO通信系统(500)的接收设备,该接收设备(100)包括被配置为接收包括多个MIMO信号(y)的MIMO信号(y)的接收机(102) (x)的多个发射符号(x)对应于不同的发射层的处理器(104),所述处理器(104)被配置为获得与MIMO信道相关联的信道矩阵(H)的右奇异向量(v) MI MO信道,基于至少一个初始搜索矢量(xini)和右奇异向量(v)执行MI MO检测以生成至少一组候选向量和对应的一组决策度量值,检测多个 基于所生成的集合f个候选向量和对应的一组决策度量值来确定发送符号(x)的大小。 此外,本发明还涉及数据库,相应的方法,计算机程序和计算机程序产品。 此外,本发明还涉及通信设备,相应的方法,计算机程序和计算机程序产品。 p>
摘要:
The present invention relates to a communication system to be applied for the next generation (5G) wireless communications technology standards. The communication system architecture, created by the combination of the index modulation (IM) technique and the orthogonal frequency division multiplexing (OFDM) which eliminates the need to utilize complex equalizers by parsing high speed data strings and transmitting them over multiple orthogonal sub carriers, allows the bits to be transmitted via active sub carrier indexes. The present communication system relates to a particular system wherein the orthogonal frequency division multiplexing with index modulation (OFDM-IM) and multiple input multiple output (MIMO) communication techniques are used in tandem. Such a system could be employed in future generation mobile communication systems and standards (5G and beyond), Local Area Network (LAN) systems and standards (IEEE 802.11n), terrestrial digital TV systems and standards (Digital Video Broadcasting, DVB), multi-carrier communication systems, and broadband digital communication systems.
摘要:
Radio network node (110)and method (400) therein, for channel estimation of a channel used for wireless signal communicationwitha UE(120).Theradio network node (110) comprises a multiple antenna array (210) configured for beamforming, spatial multiplexing and MIMO transmission.The radio network node (110) also comprises a receiver (510), configured for receiving a first pilot signalfrom the UE(120), and a wireless signalfrom an interferer (230);and also configured for receiving a second pilot signalfrom the UE(120)at a determined AoA, filtered by a receiver pre-filter; and a processor (520)configured for spatial analysing thereceived signals;and selecting the UE pilot signals;and configured for determining AoAfor the selected pilot signals;and furthermore configured for designing a receiver pre-filter, for isolating signals from the AoA;and also further configured for esti- mating the channel, based on the received second pilot signal. (Publ. Fig. 1)
摘要:
An apparatus may include a channel estimation component to determine a channel estimation matrix H for a tone of a multiplicity of tones in a multiple input multiple output (MIMO) communications signal. The apparatus may further include a processor circuit coupled to the receiver component, and a flow selection component for execution on the processor circuit to calculate a figure of merit for power loss for the received tone based upon the channel estimation matrix, and based upon the calculated figure of merit, perform either a max-log calculation or a maximum likelihood calculation to determine a received signal metric, but not both calculations. Other embodiments are described and claimed.
摘要:
A method in a base station (110) for providing an estimate of interference and noise power of an uplink resource block. The base station (110) is comprised in a cellular communications network (100), The base station (110) receives (401, 901) on multiple antenna elements (112a-c) of a receiver antenna (112) a signal comprising interference and noise. The base station (110) calculates (402, 902) an interference and noise covariance matrix for the resource block based on the received signal. The base station (110) then calculates (903, 403) the estimate based on the calculated interference and noise covariance matrix, the number of the multiple antenna elements (112a-c) of the receiver antenna (112) and a channel covariance matrix for a virtual user equipment. The provided estimate enables an interference and noise measure when Interference Rejection Combining (!RC) is applied in the uplink. Thereby more efficient use of uplink Frequency Selective Scheduling (FSS) together with uplink IRC and improved performance in the cellular communications network is enabled.