Title:
INTERFACE METHOD BETWEEN CENTRAL AGGREGATION DEVICE AND EXTENSION DEVICE, AND WIRELESS NETWORK CONTROL SYSTEM
Document Type and Number:
WIPO Patent Application WO/2017/175606
Kind Code:
A1
Abstract:
The present invention pertains to an interface method between a central aggregation device and an extension device, the method comprising: a step in which the central aggregation device transmits upstream signal instruction information for user equipment, and an identifier of the user equipment to the extension device; a step in which the extension device retains upstream signal information extracted from the received upstream signal instruction information, and the identifier, and transmits an upstream signal instruction to the user equipment; a step in which the extension device receives, on the basis of the retained upstream signal information and/or the identifier, an upstream signal transmitted from the user equipment; a step in which the extension device extracts data information from the upstream signal, estimates the upstream communication quality on the basis of the upstream signal, and transmits the extracted data information and/or the estimated upstream communication quality to the central aggregation device; and a step in which the central aggregation device receives the data information and/or the upstream communication quality from the extension device.
Inventors:
ISOGAWA TAKAYUKI (JP)
OOKUBO NAOTO (JP)
TAKIGUCHI TAKAHIRO (JP)
UCHINO TOORU (JP)
OOKUBO NAOTO (JP)
TAKIGUCHI TAKAHIRO (JP)
UCHINO TOORU (JP)
Application Number:
PCT/JP2017/012054
Publication Date:
October 12, 2017
Filing Date:
March 24, 2017
Export Citation:
Assignee:
NTT DOCOMO INC (JP)
International Classes:
H04W92/16; H04W24/10; H04W28/16; H04W88/06
Foreign References:
| JP2015073209A | 2015-04-16 |
Other References:
YASUHIKO MATSUNAGA: "Radio Access Network Architecture Evolution toward 5G", IEICE TECHNICAL REPORT, 9 October 2014 (2014-10-09), XP055579164
"CU -DU split: Justification of Option 6 and 7", 3GPP TSG-RAN WG3 #93B R3- 162542, 14 October 2016 (2016-10-14), XP051152196, ISBN: 051152196
See also references of EP 3442307A4
"CU -DU split: Justification of Option 6 and 7", 3GPP TSG-RAN WG3 #93B R3- 162542, 14 October 2016 (2016-10-14), XP051152196, ISBN: 051152196
See also references of EP 3442307A4
Attorney, Agent or Firm:
ITOH, Tadashige et al. (JP)
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