Title:
WIRELESS COMMUNICATION METHOD, WIRELESS COMMUNICATION SYSTEM, WIRELESS BASE STATION AND USER TERMINAL
Document Type and Number:
WIPO Patent Application WO/2013/183541
Kind Code:
A1
Abstract:
This wireless communication method suppresses the impact of interference even when different DL/UL configurations are applied at neighboring transmission/reception points (wireless base stations). In a wireless communication system in which wireless base stations communicate by time-division duplexing with user terminals and each wireless base station individually varies the DL/UL configuration, this wireless communication method involves a step in which each wireless base station measures the amount of interference from another wireless base station, a step in which, on the basis of said measured interference amount, a change request signal requesting a change of the DL/UL configuration and/or a change in the transmission power is transmitted to the other wireless base station, and a step in which the other wireless base station which receives the change request signal changes the DL/UL configuration and/or the transmission power to communicate with the user terminal.
Inventors:
NAGATA SATOSHI (JP)
KISHIYAMA YOSHIHISA (JP)
TAKEDA KAZUAKI (JP)
KISHIYAMA YOSHIHISA (JP)
TAKEDA KAZUAKI (JP)
Application Number:
PCT/JP2013/065055
Publication Date:
December 12, 2013
Filing Date:
May 30, 2013
Export Citation:
Assignee:
NTT DOCOMO INC (JP)
International Classes:
H04W28/16; H04W52/24; H04W72/04
Foreign References:
| JP2008533924A | 2008-08-21 |
Other References:
NEW POSTCOM: "Evaluation results for eIMTA Phase-3 scenario", 3GPP TSG RAN WG1 MEETING #69 R1-122889, 25 May 2012 (2012-05-25), XP050601153
CMCC: "Discussion on one solution of eICIC interference management for TDD", 3GPP TSG-RAN WG1 #61BIS R1-104119, 2 July 2010 (2010-07-02), XP050598504
"Feasibility Study for Evolved UTRA and UTRAN", 3GPP, TR 25.912 (V7.1.0), September 2006 (2006-09-01)
See also references of EP 2858410A4
CMCC: "Discussion on one solution of eICIC interference management for TDD", 3GPP TSG-RAN WG1 #61BIS R1-104119, 2 July 2010 (2010-07-02), XP050598504
"Feasibility Study for Evolved UTRA and UTRAN", 3GPP, TR 25.912 (V7.1.0), September 2006 (2006-09-01)
See also references of EP 2858410A4
Attorney, Agent or Firm:
AOKI, Hiroyoshi et al. (JP)
Hiroyoshi Aoki (JP)
Hiroyoshi Aoki (JP)
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