無線端末、第１の無線局、及びこれらの方法、並びに無線通信システム

Title:

無線端末、第１の無線局、及びこれらの方法、並びに無線通信システム

Document Type and Number:

Japanese Patent JP7243794

Kind Code:

B2

Abstract:

A radio network (6) and a radio terminal (4) are configured to, when the radio terminal (4) is using a first cell (10) served by a first radio station (1) as a primary cell and a second cell (20) served by a second radio station (2) as a secondary cell, change the primary cell from the first cell (10) to a third cell (30) served by a third radio station (3) while keeping communication status information regarding the radio terminal (1) on the second cell (20). It is thus, for example, possible to enable a communication service in the secondary cell to be continued even after the primary cell is changed when the primary cell is changed during execution of carrier aggregation (e.g., Inter-eNB CA) on a plurality of cells served by different radio stations.

More Like This:

JP2009544246	Establishing and maintaining calls in wireless networks
JP5396581	Carrier allocation to support mobile communications in multicarrier OFDM systems
JP5893071	How to Control the Reconfiguration of Multiple Radio Access Bearers in a Radio Device

Inventors:

Nao Futaki
Hiroaki Aminaka

Application Number:

JP2021180813A

Publication Date:

March 22, 2023

Filing Date:

November 05, 2021

Export Citation:

Click for automatic bibliography generation Help

Assignee:

NEC

International Classes:

H04W36/28; H04W16/32; H04W72/0457; H04W76/20

Domestic Patent References:

JP2013223074A
JP2011504037A

Foreign References:

CN102833802A
WO2011137784A1

Attorney, Agent or Firm:

Ken Ieiri

Previous Patent: Ceramic/aluminum joints, insulated circuit boards, LED modules, ceramic members

Next Patent: SNIPERSCOPE