Title:
METHOD AND DEVICE FOR ESTIMATING LTE UPLINK SYSTEM CHANNEL IN INTERFERENCE CONDITION
Document Type and Number:
WIPO Patent Application WO/2016/058476
Kind Code:
A1
Abstract:
A method and device for estimating an LTE uplink system channel in an interference condition. The method comprises: receiving a guidance vector of a baseband signal, so as to obtain a guidance vector Ym
of a frequency-domain baseband signal via a fast Fourier transform; processing the Ym in a frequency domain, and deleting some interference spectrum lines, so as to obtain a vector ym after the frequency domain is suppressed; conducting least square estimation (LS) on the ym, so as to obtain an LS estimation output vector of hLS = X-1ym, X being an LTE uplink demodulation reference signal (DMRS); and weighting the LS estimation output vector, so as to obtain a channel estimation value. The technical solution can fully preserve the channel energy while filtering noise and suppressing interference, thereby improving the channel estimation accuracy and having the advantage of relatively low complexity at the same time.
Inventors:
XIONG GAOCAI (CN)
QIN HONGFENG (CN)
LIN DENGSHENG (CN)
QIN HONGFENG (CN)
LIN DENGSHENG (CN)
Application Number:
PCT/CN2015/090735
Publication Date:
April 21, 2016
Filing Date:
September 25, 2015
Export Citation:
Assignee:
ZTE CORP (CN)
International Classes:
H04L25/02
Foreign References:
| CN103428127A | 2013-12-04 | |||
| CN101388869A | 2009-03-18 | |||
| CN102185630A | 2011-09-14 | |||
| CN101018219A | 2007-08-15 |
Attorney, Agent or Firm:
AFD CHINA INTELLECTUAL PROPERTY LAW OFFICE (CN)
北京安信方达知识产权代理有限公司 (CN)
北京安信方达知识产权代理有限公司 (CN)
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