Title:
METHOD OF OPTIMIZING RADIO LINK MONITOR WINDOW PARAMETER IN WIRELESS HETEROGENEOUS COMMUNICATION NETWORK
Document Type and Number:
WIPO Patent Application WO/2014/030065
Kind Code:
A3
Abstract:
The invention relates to a method, in a first base station (110) of a wireless communication network, of calibrating an offset of an antenna array of the first base station relative to an antenna array of a second base station (120) in the wireless communication network, the method including the steps of: dividing a whole parameter offset range into a plurality of segments (S211) according to the requirement of calibration precision and assigning a feature value for each segment; compensating uplink channel state information according to the feature value assigned to one of the plurality of segments in a predetermined order in a first cycle (S411); designing a pre-coding vector or matrix for downlink data transmission according to a compensation result (S413), pre-coding downlink data and subsequently transmitting the downlink data to a user equipment cooperatively with the second base station (S414, S423); and judging whether all the segments of the parameter offset range have been traversed (S415), and if a judgment result is negative, then repeating the foregoing steps; or if the judgment result is positive, then ending the first cycle (S415).
Inventors:
SUN HUAN (CN)
ZHAO YAN (CN)
SUN FANGLEI (CN)
ZHAO YAN (CN)
SUN FANGLEI (CN)
Application Number:
PCT/IB2013/002236
Publication Date:
May 15, 2014
Filing Date:
August 19, 2013
Export Citation:
Assignee:
ALCATEL LUCENT (FR)
International Classes:
H04B7/02; H04B7/06; H04B17/00
Domestic Patent References:
| WO2012020312A2 | 2012-02-16 |
Foreign References:
| EP2439981A2 | 2012-04-11 |
Other References:
ALCATEL-LUCENT SHANGHAI BELL ET AL: "On handling of timing misalignment and antenna calibration", 3GPP DRAFT; R1-113333 HANDLING OF TIMING MISALIGNMENT AND ANTENNA CALIBRATION, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Zhuhai; 20111010, 6 October 2011 (2011-10-06), XP050538596
Attorney, Agent or Firm:
THERIAS, Philippe (32 avenue Kléber, Colombes, FR)
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