Title:
METHOD FOR RESTRAINING CROSS-SLOT INTERFERENCE IN SLOT CDMA SYSTEM
Document Type and Number:
WIPO Patent Application WO/2007/028335
Kind Code:
A1
Abstract:
A method for restraining cross-slot interference in slot CDMA system includes the
following steps: BS determining the location of exsiting cross-slot according to
the configuration information of current cell and common frequency adjacent cells,
and performing multi-cell channel estimation for the cross-slot and obtaining
the result of channel estimation; the BS determining the code channel configuration
information of common frequency adjacent cells, and grouping the determined
code channel, and determining the common frequency adjacent cells’
code channels which take part in joint detection; the BS obtaining detection
data according to multi-cell channel eatimation result, each determined BS’s
code channels which take part in joint detection. By use of the invention, cross-slot
interference between the BS sending downlink signal and the BS receiving uplink
signal in the corresponding slot is decreased, and sysytem capability and stability
is improved.
Inventors:
WANG YINGMIN (CN)
REN SHIYAN (CN)
HU JINLING (CN)
REN SHIYAN (CN)
HU JINLING (CN)
Application Number:
PCT/CN2006/002309
Publication Date:
March 15, 2007
Filing Date:
September 07, 2006
Export Citation:
Assignee:
DATANG MOBILE COMM EQUIP CO (CN)
WANG YINGMIN (CN)
REN SHIYAN (CN)
HU JINLING (CN)
WANG YINGMIN (CN)
REN SHIYAN (CN)
HU JINLING (CN)
International Classes:
H04B1/707; H04B1/7105; H04W28/04; H04W72/04; H04W72/08; H04W92/12; H04W16/14; H04W24/00; H04W74/04; H04W88/08
Foreign References:
| CN1555145A | 2004-12-15 | |||
| US20040100928A1 | 2004-05-27 | |||
| CN1543749A | 2004-11-03 | |||
| CN1445950A | 2003-10-01 | |||
| CN1753322A | 2006-03-29 | |||
| CN1520077A | 2004-08-11 |
Other References:
See also references of EP 1931154A4
B. STEINER; P. W. BAIER: "Low Cost Channel Estimation in the Uplink Receiver of CDMA Mobile Radio Systems", FREQUENZE, vol. 47, 1993, pages 11 - 12
B. STEINER; P. W. BAIER: "Low Cost Channel Estimation in the Uplink Receiver of CDMA Mobile Radio Systems", FREQUENZE, vol. 47, 1993, pages 11 - 12
Attorney, Agent or Firm:
DRAGON INTERNATIONAL PATENT OFFICE (vention Center No. 12 Yumin Roa, Chaoyang District Beijing 9, CN)
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