US 12,457,548 B2
Communication system and methods that adapt RRC procedures to a 5G network implementing network slicing
Sivapathalingham Sivavakeesar, Tokyo (JP); and Sadafuku Hayashi, Tokyo (JP)
Assigned to NEC CORPORATION, Tokyo (JP)
Appl. No. 16/475,798
Filed by NEC CORPORATION, Tokyo (JP)
PCT Filed Dec. 19, 2017, PCT No. PCT/JP2017/045491
§ 371(c)(1), (2) Date Jul. 3, 2019,
PCT Pub. No. WO2018/128076, PCT Pub. Date Jul. 12, 2018.
Claims priority of application No. 1700270 (GB), filed on Jan. 6, 2017; and application No. 1700505 (GB), filed on Jan. 11, 2017.
Prior Publication US 2019/0357131 A1, Nov. 21, 2019
Int. Cl. H04W 48/18 (2009.01); H04W 36/00 (2009.01); H04W 60/04 (2009.01)
CPC H04W 48/18 (2013.01) [H04W 36/0069 (2018.08); H04W 36/00695 (2023.05); H04W 36/00835 (2018.08); H04W 60/04 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A base station comprising:
at least one memory storing instructions; and
at least one processor configured to process the instructions to:
receive, from another base station, as part of a handover procedure between the base station and the another base station, a handover request message including:
an identifier for a communication device,
network slice selection assistance information (NSSAI) including information indicating a slice/service type, and information for differentiating at least one slice corresponding to the slice/service type,
a quality of service (QOS) flow Identifier,
information indicating at least one network instance, corresponding to the at least one slice and used by the another base station, and
information corresponding to at least one user plane function; and
determine whether sessions corresponding to the at least one slice corresponding to the NSSAI are supported by the base station,
wherein the slice/service type is defined by including:
at least one operator common type including:
enhanced mobile broadband (eMBB),
critical communication for high reliable and low latency, and
massive communication for Internet of Things, and
at least one operator specific type.