RADIO COMMUNICATION SYSTEM, RADIO STATION, RADIO TERMINAL, COMMUNICATION CONTROL METHOD, AND PROGRAM

Japanese Patent JP2018102016

A

PROBLEM TO BE SOLVED: To contribute to suppression of wasteful power consumption at a radio terminal in carrier aggregation of a plurality of cells operated at different radio stations.SOLUTION: A radio terminal (3) has ability for performing dual connectivity in which a first cell (10) of a first radio station (1) and a second cell (20) of a second radio station (2) are used. The first radio station or the second radio station (2) transmits restriction information to the radio terminal (3). The restriction information includes an information element related to transmission restriction in at least one of the first cell (10) and the second cell (20) when dual connectivity is carried out. The transmission restriction is a restriction relating to transmission of an uplink signal in the radio terminal (3).SELECTED DRAWING: Figure 5

FUTAKI TAKASHI
AMINAKA HIROAKI

JP2018063962A

June 28, 2018

March 29, 2018

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NEC CORP

H04W52/02; H04W16/32; H04W72/04

JP2014120940A	2014-06-30
JP2014514840A	2014-06-19

WO2012138142A2

2012-10-11

NTT DOCOMO: "Enhanced Cell Identification for Additional Carrier Type", 3GPP TSG-RAN WG1 MEETING #68 R1-120398, JPN6018002852, 31 January 2012 (2012-01-31), pages 1 - 4, ISSN: 0003936204
ERICSSON, ST-ERICSSON: "Impact of HSPA Multiflow on BS and UE RF requirements", 3GPP TSG-RAN WG4 MEETING #63 R4-122683, JPN6018002854, 14 May 2012 (2012-05-14), pages 1 - 9, ISSN: 0003936205

Ken Ieiri

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