Method and device for realizing uplink reception detection
A device and a technology for receiving interference, applied in the shaping network of the transmitter/receiver, baseband system components, etc., can solve the problem of low complexity and high complexity of the IRC interference suppression scheme, and achieve low-complexity suppression of co-channel interference Effect
Active Publication Date: 2017-12-15
DATANG MOBILE COMM EQUIP CO LTD
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[0022] The present invention provides a method and device for realizing uplink reception detection, which are used to solve the problem in the prior art that the low complexity of the IRC interference suppression scheme in the large-scale antenna scenario is relatively high
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[0079] In the embodiment of the present invention, the equalization matrix is determined according to the correlation matrix of the interference channel matrix corresponding to the received interference total signal on N subcarriers; the received signal is equalized and detected according to the equalization matrix, and the transmitted signal is estimated. Since the same-channel interference can be suppressed only by determining the main interference characteristic channel matrix (that is, the new interference channel matrix), the operation of inverting the high-order matrix in the traditional IRC detection algorithm is avoided, so that in a large-scale antenna scenario, a lower The complexity can suppress co-channel interference.
[0080] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodim...
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The embodiment of the invention relates to the technical field of wireless communication, and particularly to a method and a device for realizing uplink reception detection. The method and the device for realizing uplink reception detection are used for solving the problem in the prior art that the IRC interference rejection scheme currently has relatively high complexity under the Massive MIMO scenario. According to the embodiment, the method comprises the steps of obtaining a main interference characteristic channel matrix through characteristic vector decomposition based on a correlation matrix of reception interference resultant signals on N sub-carriers, then combining the main interference characteristic channel matrix with channels of useful signals to form an equalization matrix of joint detection; and carrying out equalization detection on received signals based on the equalization matrix and estimating transmitted signals. Same-frequency interference can be suppressed as long as the main interference characteristic channel matrix is determined, so that high-order matrix inversion operation in a traditional IRC detection algorithm is avoided, and accordingly the same-frequency interference can be suppressed by adopting relatively low complexity under the Massive MIMO scenario.
Description
technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method and device for realizing uplink reception detection. Background technique [0002] At present, 4G base stations are all co-frequency networking, which is a network composed of different base stations using the same frequency points. [0003] Since different base stations use the same frequency point, the same-frequency interference is serious. How to suppress co-frequency interference has become a more important issue in improving the performance of co-frequency networking. [0004] Suppressing co-channel interference through an IRC (Interference Rejection Combining, interference suppression combination) technology is currently a commonly used method. [0005] At present, when using the IRC technology to suppress co-channel interference, it is necessary to invert the matrix, and the order of the matrix is generally the number of receiving anten...
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IPC IPC(8): H04L25/03H04L25/02
Inventor 刘昊李琼
Owner DATANG MOBILE COMM EQUIP CO LTD