US 12,302,224 B2
Radio access network node, radio terminal, and methods and non transitory computer-readable media therefor
Hisashi Futaki, Tokyo (JP); and Sadafuku Hayashi, Tokyo (JP)
Assigned to NEC CORPORATION, Tokyo (JP)
Filed by NEC Corporation, Tokyo (JP)
Filed on Sep. 21, 2023, as Appl. No. 18/371,004.
Application 18/371,004 is a continuation of application No. 17/067,096, filed on Oct. 9, 2020, granted, now 11,825,404.
Application 17/067,096 is a continuation of application No. 16/474,337, granted, now 11,252,643, issued on Feb. 15, 2022, previously published as PCT/JP2017/041823, filed on Nov. 21, 2017.
Claims priority of application No. 2017-000799 (JP), filed on Jan. 5, 2017.
Prior Publication US 2024/0023006 A1, Jan. 18, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 48/14 (2009.01); H04W 36/00 (2009.01); H04W 36/14 (2009.01); H04W 88/06 (2009.01)
CPC H04W 48/14 (2013.01) [H04W 36/0077 (2013.01); H04W 36/1443 (2023.05); H04W 88/06 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method of a source radio access network (RAN) node, the method comprising:
transmitting a handover request message to a target RAN node;
receiving a handover request acknowledge message from the target RAN node, the handover request acknowledge message including a first Radio Resource Control (RRC) message; and
transmitting a second RRC message to a radio terminal, wherein
each of the first RRC message and the second RRC message includes radio resource information indicating radio resources to be used by the radio terminal for requesting at least one system information supported by the target RAN node, wherein the at least one system information is not being broadcast by the target RAN node and is transmitted by the target RAN node to the radio terminal in response to a request from the radio terminal,
the radio resource information is used by the radio terminal when the radio terminal requests the at least one system information, and the source RAN node is an E-UTRA node and the target RAN node is a 5G NR node, and
each of the first RRC message and the second RRC message further includes information indicating a System Information Block (SIB) type of system information which is supported by the target RAN node, and the SIB is not being broadcast by the target RAN node.