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Receiver and precoding system using asymmetric imperfect channel knowledge

A receiver, precoding technology, used in orthogonal multiplexing systems, shaping networks in transmitter/receiver, transmission systems, etc.

Active Publication Date: 2018-08-31
XFUSION DIGITAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the case where the transmitter and receiver have different incomplete CSI, hereafter referred to as the case of "asymmetric incomplete channel knowledge", the analysis and design of DPC precoders and decoders is often challenging

Method used

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  • Receiver and precoding system using asymmetric imperfect channel knowledge
  • Receiver and precoding system using asymmetric imperfect channel knowledge
  • Receiver and precoding system using asymmetric imperfect channel knowledge

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Embodiment Construction

[0103] The following detailed description is presented in conjunction with the accompanying drawings, which form a part hereof, and show by way of illustration specific aspects in which the invention may be practiced. It is to be understood that other aspects may be utilized and structural or logical changes may be made without departing from the scope of the present invention. Accordingly, the following detailed description is not to be taken as limiting, but the scope of the present invention is defined by the appended claims.

[0104] It is to be understood that comments made in relation to a described method apply equally to a corresponding device or system for performing the method, and vice versa. For example, if a specific method step is described, a corresponding apparatus may include means for performing the described method step, even if such means are not explicitly set forth or illustrated in the drawings. Further, it can be understood that the features of various...

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Abstract

The disclosure relates to a receiver (400), including: a decoder (305) comprising an adjustable receive filter (319) for decoding a receive signal (Y) received over a communication channel; and a first channel state information (CSI) handler (401) configured to provide the decoder (305) with receive-side channel state information (H-~) indicating a receive-side estimate of a channel state (H) of the communication channel and to provide the decoder (305) with transmit-side channel state information (H-hat) indicating a transmit-side estimate of the channel state (H) of the communication channel, wherein the decoder (305) is configured to adjust the receive filter (319) based on the transmit-side channel state information (H-hat) if the transmit-side channel state information (H-hat) is a less good estimate of the channel state (H) of the communication channel than the receive-side channel state information (H-~). The disclosure further relates to a precoding system (500) including suchreceiver (400).

Description

technical field [0001] The present invention relates to receivers and precoding systems using asymmetric incomplete channel knowledge. In particular, the present invention relates to a lattice-based dirty paper coding (Dirty Paper Coding, DPC) filter design technology with asymmetric incomplete channel knowledge. Background technique [0002] Interference is one of the biggest limiting factors for communication in a network. In some cases, its impact can be mitigated by some precoding techniques, which can be divided into linear and nonlinear methods. Linear methods rely on some form of zero-forcing or variants thereof, and are generally not optimal from a transfer rate or throughput perspective. Non-linear methods rely on Costa's famous dirty paper coding (dirty paper coding, DPC for short) in "Max H.M.C Costa. Writing on Dirty Paper, IEEE Transactions on Information Theory, Vol. 29, 1983: 439–441", and in comparison , usually achieves better performance. Classical anal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L25/03H04B7/06
CPCH04B7/0626H04J11/0033H04L25/03955
Inventor 马利亚·本安马尔伊尼亚基·埃斯特拉·亚格里阿布德拉第夫·扎迪
Owner XFUSION DIGITAL TECH CO LTD
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