Fast receiving method and fast receiver

A receiving method, fast technology, applied in gearbox control/balance, baseband system components, error correction/detection using convolutional code, etc., can solve problems such as iterative equalization effect deterioration
CN1373561AInactive Publication Date: 2002-10-09NTT DOCOMO INC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NTT DOCOMO INC
Publication Date
2002-10-09
Estimated Expiration
Not applicable · inactive patent

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Abstract

The method of the present invention includes: estimating the impulse response hmn(q) of each transmission path based on M received signals rm (m=1,...M) and known signals (the number of users is equal to N, n=1,...N). Determine the M×N matrix H(q) with elements hmn(q) and the Q×Q matrix H with elements H(q) (where Q represents the number of multipaths for each transmitted signal wave and q=0,…, Q-1). The soft decision value b'n(k) is determined based on the decoded λ2[bn(k)], and it is used to generate the interference component matrix B'(k) to generate the interference replica signal H·B'(k). The interfering replica signal H.B'(k) is subtracted from the reception matrix y(k) to determine y'(k). y′(k) and H are used to determine the adaptive filtering coefficient wn(k) applied to the nth user in order to eliminate the residual interference component in y′(k) according to the minimum root mean square criterion. y(k) through wn(k) provides the log-likelihood ratio of the received signal from the nth user with interference removed.
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Description

technical field

[0001] The present invention relates to a Turbo (fast) (software name) receiving method and a Turbo receiver, which applies iterative equalization to waveform distortions caused by interference using Turbo coding techniques, such as can be used in mobile communications. Background technique

[0002] One of the tasks in the mobile station communication service is: how to construct a system that can capture multiple users with high quality in a limited frequency domain. As a measure to solve this problem, a multiple-input multiple-output (MIMO) system is known in the technical field. An example of the system configuration is shown in Figure 30A , where multiple transmitters S1 to SN simultaneously transmit symbols c at the same frequency 1 (i) to c N (i), and the transmitted signal is received by a MIMO receiver equipped with a plurality of antennas #1 to #M. The received signal is processed by the receiver, which evaluates the tran...

Claims

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