# US 11,910,491 B2 · Proxy mobile internet protocol based mobility management system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,910,491 B2 - Document ID: US11910491B2 - Status: Granted - Kind: B2 - Application number: 17/143,625 - Filed: 2021-01-07 - Published: 2022-07-07 - Granted: 2024-02-20 - Earliest claimed: 2021-01-07 - Assignees: Cisco Technology, Inc. - Applicants: Cisco Technology, Inc. - Inventors: Srinath Gundavelli; Sangram Kishore Lakkaraju; Vimal Srivastava; Oliver James Bull - Web page: https://patentgrep.com/patent/US11910491B2 ## CPC - H04W 88/16: Gateway arrangements - H04W 8/087: {for preserving data network PoA address despite hand-offs} - H04W 36/0019: {adapted for mobile IP [MIP]} - H04W 36/14: Reselecting a network or an air interface - H04W 76/12: Setup of transport tunnels - H04W 80/04: Network layer protocols, e.g. mobile IP [Internet Protocol] - H04W 8/26: Network addressing or numbering for mobility support - H04W 76/11: Allocation or use of connection identifiers - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract A first data plane is established between a user equipment device and a gateway device, wherein the user equipment device comprises a 3rd Generation Partnership Project (3GPP) user equipment device, and wherein the first data plane comprises a 3GPP data plane. A second data plane is established between the gateway device and an anchor device, wherein the second data plane comprises a Proxy Mobile Internet Protocol version 6 (PMIPv6) data plane. Mobility management is performed for the user equipment device via communications between the gateway device and the anchor device. ## Claims ### Claim 1 A method comprising: establishing a first data plane between a user equipment device and a gateway device, wherein the user equipment device comprises a 3rd Generation Partnership Project (3GPP) user equipment device, wherein the gateway device is configured to implement a Proxy Mobile Internet Protocol version 6 (PMIPv6) Mobile Access Gateway (MAG), and wherein the first data plane comprises a 3GPP data plane; establishing a second data plane between the gateway device and an anchor device, wherein the second data plane comprises a PMIPv6 data plane, and wherein the anchor device is configured to implement a PMIPv6 Local Mobility Anchor (LMA); and performing a paging mobility management operation for the user equipment device under control of the MAG and the LMA without use of or control by an LTE Mobility Management Entity (MME) device or a 5G Access and Mobility Management Function (AMF) device, the paging mobility management operation comprising the LMA initiating paging of the user equipment device by sending a message from the LMA to the MAG and initiating a paging timer at the LMA. ### Claim 2 (depends on 1) The method according to claim 1, wherein: the user equipment device comprises a Long Term Evolution (LTE) user equipment device or a Fifth Generation Mobile Network (5G) user equipment device; the first data plane comprises an LTE or 5G data plane; the gateway device is configured to implement an Evolved Node B or a Next Generation Node B; and the first data plane is configured to provide data between the Evolved Node B or the Next Generation Node B and the user equipment device. ### Claim 3 (depends on 1) The method of claim 1, further comprising performing session management for the user equipment device without using an LTE MME device or a 5G Session Management Function (SMF) device. ### Claim 4 (depends on 1) The method of claim 1, further comprising performing a detach operation for the user equipment device comprising the MAG sending a deregistration message to the LMA. ### Claim 5 (depends on 1) The method of claim 1, further comprising performing a handover operation for the user equipment device comprising the MAG initiating the handover operation by sending a handover initiation message to the LMA. ### Claim 6 (depends on 1) The method of claim 1, wherein establishing the first data plane and establishing the second data plane comprises mapping a General Packet Radio Service (GPRS) tunneling protocol (GTP) Tunnel Endpoint Identifier (TEID) of the first data plane to a Generic Routing Encapsulation (GRE) key of the second data plane. ### Claim 7 (depends on 1) The method of claim 1, further comprising providing Non-Access Stratum Signaling (NAS) termination at the gateway device. ### Claim 8 A method comprising: providing a first protocol stack at a gateway device, wherein the first protocol stack comprises a 3rd Generation Partnership Project (3GPP) protocol stack configured to wirelessly communicate with a user equipment device; providing a second protocol stack at the gateway device, wherein the second protocol stack comprises a Proxy Mobile Internet Protocol version 6 (PMIPv6) protocol stack configured to implement a PMIPv6 Mobile Access Gateway (MAG), communicate with a Local Mobility Anchor (LMA) implemented at an anchor device, and provide a paging mobility management operation for the user equipment device under control of the MAG and the LMA without use of or control by an LTE Mobility Management Entity (MME) device or a 5G Access and Mobility Management Function (AMF) device, the paging mobility management operation comprising the LMA initiating paging of the user equipment device by sending a message from the LMA to the MAG and initiating a paging timer at the LMA; obtaining a message at the gateway device from a first one of the user equipment device or the anchor device; mapping the message from one of the first protocol stack or the second protocol stack to another of the first protocol stack or the second protocol stack; and providing the message via the another one of the first protocol stack or the second protocol stack to a second one of the user equipment device or the anchor device. ### Claim 9 (depends on 8) The method of claim 8, wherein: obtaining the message comprises obtaining a non-access stratum (NAS) signaling message from the user equipment device and performing NAS termination; and mapping the message comprises mapping the NAS signaling message to a PMIPv6 control plane message. ### Claim 10 (depends on 8) The method of claim 8, wherein: obtaining the message comprises obtaining a Long Term Evolution (LTE) or a Fifth Generation Mobile Network (5G) data plane message; and mapping the message comprises mapping the LTE or 5G data plane message to a PMIPv6 data plane message. ### Claim 11 (depends on 10) The method of claim 10, wherein mapping the LTE or 5G data plane message to a PMIPv6 data plane message comprises mapping a General Packet Radio Service (GPRS) tunneling protocol (GTP) Tunnel Endpoint Identifier (TEID) to a Generic Routing Encapsulation (GRE) key. ### Claim 12 (depends on 8) The method of claim 8, wherein: obtaining the message comprises obtaining an attach request message from the user equipment device at the MAG of the gateway device; mapping the message comprises mapping the attach request message to a Proxy Binding Update (PBU) message; and providing the message comprises providing the PBU message to the LMA of the anchor device. ### Claim 13 (depends on 8) The method of claim 8, wherein the gateway device is configured to serve as an Evolved Node B or a Next Generation Node B for messages provided to or obtained from the user equipment device. ### Claim 14 An apparatus comprising: one or more network interfaces; and one or more processors; wherein the one or more processors are configured to: implement a Proxy Mobile Internet Protocol version 6 (PMIPv6) Mobile Access Gateway (MAG) configured to communicate with a PMIPv6 Local Mobility Anchor (LMA) implemented at an anchor device; establish, via the one or more network interfaces, a first data plane between a user equipment device and the apparatus, wherein the user equipment device comprises a 3rd Generation Partnership Project (3GPP) user equipment device, and wherein the first data plane comprises a 3GPP data plane; establish, via the one or more network interfaces, a second data plane between the apparatus and the anchor device, wherein the second data plane comprises a PMIPv6 data plane; and perform a paging mobility management operation for the user equipment device under control of the MAG and the LMA without use of or control by an LTE Mobility Management Entity (MME) device or a 5G Access and Mobility Management Function (AMF) device, the paging mobility management operation comprising the LMA initiating paging of the user equipment device by sending a message from the LMA to the MAG and initiating a paging timer at the LMA. ### Claim 15 (depends on 14) The apparatus of claim 14, wherein: the one or more processors are configured to implement an Evolved Node B or a Next Generation Node B; and the first data plane is configured to provide data between the Evolved Node B or the Next Generation Node B and the user equipment device. ### Claim 16 (depends on 14) The apparatus of claim 14, wherein the one or more processors are configured to perform session management for the user equipment device without using the LTE MME device or a 5G Session Management Function (SMF) device. ### Claim 17 (depends on 14) The apparatus of claim 14, wherein the one or more processors are configured to establish the first data plane and establish the second data plane by mapping a General Packet Radio Service (GPRS) tunneling protocol (GTP) Tunnel Endpoint Identifier (TEID) of the first data plane to a Generic Routing Encapsulation (GRE) key of the second data plane. ### Claim 18 (depends on 14) The apparatus of claim 14, wherein the one or more processors are configured to perform a detach operation for the user equipment device comprising the MAG sending a deregistration message to the LMA. ### Claim 19 (depends on 14) The apparatus of claim 14, wherein the one or more processors are configured to perform a handover operation for the user equipment device comprising the MAG initiating the handover operation by sending a handover initiation message to the LMA. ### Claim 20 (depends on 14) The apparatus of claim 14, wherein the one or more processors are configured to provide Non-Access Stratum Signaling (NAS) termination at the apparatus.