METHOD AND SYSTEM FOR PROCESSING SIGNALS OF MULTIPLE ANTENNAS

Title:

METHOD AND SYSTEM FOR PROCESSING SIGNALS OF MULTIPLE ANTENNAS

Document Type and Number:

WIPO Patent Application WO/2009/009959

Kind Code:

A1

Abstract:

A method for processing signals of multiple antennas is disclosed.The method makes a single baseband unit(BBU) supporting multiple antennas which exceed itselfs design capability in a distributed base station system.The developing demands of communication field is satisfied, and the cost of building network is reduced. The method includes: a radio frequency remote unit(RRU) converting the received multiple ways of analog signals from multiple antennas to corresponding digital signals, the RRU making vectors accumulation to the multiple digital signals which are corresponding to a same sub-carrier according to a same position of time, combining the multiple ways of digital signals to a single way of digital signal. A system of distributed base station, a BBU, a baseband interface unit and a RRU are also disclosed.

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Inventors:

ZOU SULING (CN)
LI JUN (CN)
WANG HONGBO (CN)
FAN JU (CN)

Application Number:

PCT/CN2008/001322

Publication Date:

January 22, 2009

Filing Date:

July 16, 2008

Export Citation:

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Assignee:

DATANG MOBILE COMM EQUIP CO (CN)
ZOU SULING (CN)
LI JUN (CN)
WANG HONGBO (CN)
FAN JU (CN)

International Classes:

H04Q7/30; H04Q7/36

Domestic Patent References:

WO2007004048A1	2007-01-11
WO2007041899A1	2007-04-19

Foreign References:

CN1953574A	2007-04-25
CN1929672A	2007-03-14
CN1805566A	2006-07-19
CN1797967A	2006-07-05
KR20060078808A	2006-07-05
US20050245267A1	2005-11-03

Other References:

ERICSSON AB ET AL., CPRI SPECIFICATION V3.0, 20 October 2006 (2006-10-20)
OBSAI, OBSAI BTS SYSTEM REFERENCE DOCUMENT VERSION 2.0, 31 December 2006 (2006-12-31)
WANG W. ET AL.: "Application and development on remote technique of TD-SCDMA", TELECOM ENGINEERING TECHNICS AND STANDARDIZATION, April 2007 (2007-04-01), pages 21 - 25

Attorney, Agent or Firm:

BEIJING TONGDAXINHENG INTELLECTUAL PROPERTY AGENCY LTD. (Xicheng, Beijing 9, CN)

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