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Patent Searching and Data


Title:
COMMUNICATION SYSTEM, MOBILE STATION DEVICE, BASE STATION DEVICE, RANDOM ACCESS PROCESSING METHOD, AND INTEGRATED CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2012/144362
Kind Code:
A1
Abstract:
Provided is a communication system in which a base station device and a mobile station device aggregate cells of a plurality of different frequency bands to perform communication. The base station device instructs execution of a random access procedure to the mobile station device using a physical downlink control channel. The mobile station device, depending on whether or not random access settings are included in parameters of a secondary cell assigned to the station, switches between a first random access procedure which does not use information of a carrier indicator field included in the physical downlink control channel for selection of a cell which performs the random access procedure, and a second random access procedure which uses information of the carrier indicator field included in the physical downlink control channel for selection of the cell which performs the random access procedure.

Inventors:
TSUBOI HIDEKAZU
UEMURA KATSUNARI
KATO YASUYUKI
Application Number:
PCT/JP2012/059640
Publication Date:
October 26, 2012
Filing Date:
April 09, 2012
Export Citation:
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Assignee:
SHARP KK (JP)
TSUBOI HIDEKAZU
UEMURA KATSUNARI
KATO YASUYUKI
International Classes:
H04W74/08; H04W72/04
Foreign References:
Other References:
PANTECH: "On aperiodic CSI triggering for CA", R1-110155, 3GPP, 21 January 2011 (2011-01-21), XP050490092
INTEL CORPORATION: "Enhancements on MAC procedures to support CA with multiple TA", R2-112137, 3GPP, 15 April 2011 (2011-04-15), XP050494548
LG ELECTRONICS: "DL CC selection for aperiodic CSI triggering", R1-106134, 3GPP, 19 November 2010 (2010-11-19), XP050489595
NOKIA SIEMENS ET AL.: "Multiple Timing Advance", R2-111897, 3GPP, 15 April 2011 (2011-04-15), XP050494476
FUJITSU: "CIF inclusion in DCI format 1A for random access procedure initiation", R1-104874, 3GPP, 27 August 2010 (2010-08-27), XP050450161
See also references of EP 2701446A4
None
Attorney, Agent or Firm:
Fukami Patent Office, p. c. (JP)
Patent business corporation Fukami patent firm (JP)
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Claims: