# US 2019/0174009 A1 · Gateway device, radio communication device, charging control method, data transmission method, and non-transitory computer readable medium > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0174009 A1 - Document ID: US20190174009A1 - Status: Published application - Kind: A1 - Application number: 16/251,628 - Filed: 2019-01-18 - Published: 2019-06-06 - Earliest claimed: 2015-09-14 - Assignees: NEC Corporation - Applicants: NEC Corporation - Inventors: Toshiyuki TAMURA - Web page: https://patentgrep.com/patent/US20190174009A1 ## CPC - H04M 15/55: {for hybrid networks} - H04L 12/1407: {Policy-and-charging control [PCC] architecture} - H04M 15/66: {Policy and charging system} - H04W 4/24: Accounting or billing - H04W 16/14: Spectrum sharing arrangements {between different networks} - H04W 36/00698: {using different RATs} - H04W 36/28: involving a plurality of connections, e.g. multi-call or multi-bearer connections - H04W 76/00: Connection management - H04W 76/15: Setup of multiple wireless link connections - H04W 88/06: adapted for operation in multiple networks {or having at least two operational modes}, e.g. multi-mode terminals - H04W 88/16: Gateway arrangements - H04W 92/24: between backbone network devices - H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08) - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract To provide a gateway device that achieves charging control in accordance with a RAT being used by a UE even when the UE is performing communication using different RATs at the same time, the present gateway device (30) includes a management unit (31) configured to, when a communication terminal (10) forms communication aggregation by performing a first radio communication using a first radio access technology and a second radio communication using a second radio access technology, manage at least one bearer assigned to the communication terminal (10) in association with information indicating the first and second radio access technologies, and a charging system communication unit (32) configured to transmit the information indicating the first and second radio access technologies to at least one policy charging control device (40) that performs charging control. ## Claims ### Claim at position 1 1-14. (canceled) ### Claim 15 A communication method for a base station that connects to a communication terminal, the communication method comprising: initiating an addition procedure for adding another base station that connects to the communication terminal; and sending an E-RAB (E-UTRAN Radio Access Bearer) Modification Indication message including a RAT (Radio Access Technology) type and an E-RAB ID that identifies between the communication terminal and an SGW (Serving Gateway) from the base station to an MME (Mobility Management Entity). ### Claim 16 (depends on 15) The communication method according to claim 15, wherein the RAT type indicates a RAT used for said other base station. ### Claim 17 (depends on 15) The communication method according to claim 15, wherein the RAT type indicates 5G (Fifth Generation) wireless communication technology specified by 3GPP (3rd Generation Partnership Project). ### Claim 18 (depends on 15) The communication method according to claim 15, wherein the RAT type is associated with the E-RAB ID within the E-RAB Modification Indication message. ### Claim 19 (depends on 15) The communication method according to claim 15, wherein the E-RAB Modification Indication message is sent after the addition procedure. ### Claim 20 (depends on 15) The communication method according to claim 15, further comprising: generating the E-RAB Modification Indication message in the base station. ### Claim 21 (depends on 15) The communication method according to claim 15, further comprising: transferring user data on the communication terminal to said other base station using an interface between the base station and said other base station. ### Claim 22 (depends on 15) The communication method according to claim 15, wherein the base station is contained in an MCG (Master Cell Group) and said other base station is contained in an SCG (Secondary Cell Group) in dual connectivity. ### Claim 23 A base station that connects to a communication terminal, the base station comprising: a processor that initiates an addition procedure for adding another base station that connects to the communication terminal; and a transmitter configured to send an E-RAB (E-UTRAN Radio Access Bearer) Modification Indication message including a RAT (Radio Access Technology) type and an E-RAB ID that identifies between the communication terminal and an SGW (Serving Gateway), to an MME (Mobility Management Entity). ### Claim 24 (depends on 23) The base station according to claim 23, wherein the RAT type indicates a RAT used for said other base station. ### Claim 25 (depends on 23) The base station according to claim 23, wherein the RAT type includes 5G (Fifth Generation) wireless communication technology specified by 3GPP (3rd Generation Partnership Project). ### Claim 26 (depends on 23) The base station according to claim 23, wherein the RAT type is associated with the E-RAB ID within the E-RAB Modification Indication message. ### Claim 27 (depends on 23) The base station according to claim 23, wherein the E-RAB Modification Indication message is sent after the addition procedure. ### Claim 28 (depends on 23) The base station according to claim 23, wherein the base station generates the E-RAB Modification Indication message. ### Claim 29 (depends on 23) The base station according to claim 23, wherein the transmitter transfers user data on the communication terminal to said other base station using an interface between the base station and said other base station. ### Claim 30 (depends on 23) The base station according to claim 23, wherein the base station is contained in an MCG (Master Cell Group) and said other base station is contained in an SCG (Secondary Cell Group) in dual connectivity.