Patent ID: 11864097
Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A communication system, comprising: a network slice being a virtual logical network provided on a physical resource; a slice gateway (SLG) provided at an end of the network slice; and a virtualized customer premieres equipment (vCPE) configured to accommodate a terminal,
wherein the SLG includes a plurality of the SLGs, and
the SLG includes:
a selection unit, including one or more processors, configured to select, in receiving a network slice reservation request including a network condition from the vCPE, based on topology information, a latency state, and processing capability information regarding each of the other SLGs, a destination SLG of the network slice satisfying the network condition to reserve the network slice, and if there is no destination SLG satisfying the network condition, configured to newly activate a destination SLG to establish the network slice satisfying the network condition, wherein the selection unit is configured to, in receiving the network slice reservation request including service level agreement (SLA) information of the terminal and a required network functions virtualization (NFV) from the vCPE, select, based on the topology information, the latency state, and the processing capability information regarding each of the other SLGs, the destination SLG including a corresponding NFV and transmit a request for reserving resources up to the selected destination SLG and a request for reserving the corresponding NFV to the destination SLG to establish the network slice; and
an allocation unit, including one or more processors, configured to allocate traffic transmitted from the vCPE to the network slice reserved or established by the selection unit.