Mobile station and radio base station
AssigneeNtt Docomo, Inc.
InventorsTooru Uchino, Hiromasa Umeda, Kengo Yagyu
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Abstract
The present disclosure prevents the occurrence of interference in an uplink in a case of adding a “UL Scell” while CA is being performed using a Pcell and a “DL Scell.” A mobile station UE according to the present invention is configured such that, in a case where the mobile station UE adds a “UL Scell” while performing CA by using a Pcell and a “DL Scell”, the mobile station UE suspends signal transmission using the “UL Scell” for a predetermined length of time even if the “DL Scell” is in an active state.
Claims6
A mobile station configured such that, in a case where the mobile station adds an uplink secondary cell while performing carrier aggregation by using a primary cell and a downlink secondary cell, the mobile station suspends signal transmission using the uplink secondary cell for a predetermined length of time even if the downlink secondary cell is in an active state.
A mobile station configured such that, in a case where the mobile station adds an uplink secondary cell while performing carrier aggregation by using a primary cell and a downlink secondary cell, the mobile station suspends signal transmission using the uplink secondary cell until receiving an activation command even if the downlink secondary cell is in an active state.
A mobile station configured such that, in a case where the mobile station adds an uplink secondary cell while performing carrier aggregation by using a primary cell and a downlink secondary cell, the mobile station suspends signal transmission using the uplink secondary cell until receiving an uplink grant from a radio base station even if the downlink secondary cell is in an active state.
A radio base station configured such that, in a case where the radio base station commands a mobile station to add an uplink secondary cell while the mobile station is performing carrier aggregation by using a primary cell and a downlink secondary cell, the radio base station deactivates the downlink secondary cell.
A radio base station configured such that, in a case where the radio base station commands a mobile station to add an uplink secondary cell while the mobile station is performing carrier aggregation by using a primary cell and a downlink secondary cell, the radio base station removes the downlink secondary cell and then adds an uplink and downlink secondary cell.
A radio base station configured such that, in a case where the radio base station commands a mobile station to add an uplink secondary cell while the mobile station is performing carrier aggregation by using a primary cell and a downlink secondary cell, the radio base station initiates intra-cell handover.
Dependencies are inferred from the claim text.