{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9854481","patent":{"patent_number":"US-9854481","title":"Method and apparatus for maintaining service continuity of user equipment after tracking area is updated","assignee":null,"inventors":[],"filing_date":"2013-04-03T00:00:00.000Z","publication_date":"2017-12-26T00:00:00.000Z","cpc_codes":["H04W","H04W","H04W","H04W","H04W","H04W","H04W","H04W"],"num_claims":8,"abstract":"Provided are a method and an apparatus for maintaining service continuity of a UE after a tracking area is updated. In the method, after a UE initiates a TAU request, an MME judges whether an updated target SGW is the same as a source SGW (S302); in a case where a judgment result is that the updated target SGW is not the same as the source SGW, the MME further judges whether an eNodeB currently accessed by the UE is changed (S304); and in a case where the eNodeB is not changed, the MME selects the target SGW to serve the UE and sends the eNodeB a notification message indicating that the UE is switched over to a serving area of the target SGW, or the MME stops selecting an SGW for the UE but directly instructs the UE to continue to be served by the source SGW (S306)."},"analysis":{"summary":"The Method and Apparatus for Maintaining Service Continuity of User Equipment After Tracking Area Is Updated patent addresses the critical issue of maintaining uninterrupted mobile service during tracking area updates (TAU). The core innovation lies in an intelligent decision-making process within the Mobility Management Entity (MME) that optimizes the handover process between service gateways (SGWs) and eNodeBs. This technology solves the problem of dropped connections and service interruptions that occur when mobile devices move between different network zones.\n\nThe key technical approach involves the MME determining whether an updated target SGW is the same as the source SGW. If a change is necessary, the MME further evaluates whether the user equipment (UE) has also switched eNodeBs. Based on these evaluations, the system can either select the appropriate target SGW or instruct the UE to remain connected to the original SGW. This intelligent approach minimizes unnecessary handovers and ensures that the UE is always connected to the most optimal service gateway.\n\nThe business value of this innovation lies in its ability to enhance user experience, reduce service downtime, and improve network efficiency for mobile network operators (MNOs). By streamlining the TAU process, MNOs can improve customer satisfaction and reduce operational costs. The technology also opens up opportunities for new services and applications that require ultra-reliable connectivity.\n\nThe market opportunity for this patent is significant, as the demand for seamless mobile connectivity continues to grow. The Method and Apparatus for Maintaining Service Continuity of User Equipment After Tracking Area Is Updated provides a foundation for building next-generation mobile networks and unlocking new possibilities in the mobile ecosystem.","layman_explanation":"The Method and Apparatus for Maintaining Service Continuity of User Equipment After Tracking Area Is Updated focuses on ensuring your phone stays connected to the internet without interruptions as you move around. Think of it as a way to prevent dropped calls or buffering videos when you're traveling. \n\n**1. What Problem Does This Solve?**\nWhen your phone moves from one area covered by a cell tower to another, it needs to switch its connection. This switch, called a 'handover,' can sometimes cause a brief interruption in service. This patent addresses the problem of these interruptions, making sure you stay connected seamlessly.\n\n**2. How Does It Work?**\nThe system uses something called a Mobility Management Entity (MME), which acts like a smart traffic controller for your phone's connection. The MME decides whether your phone should switch to a new service gateway (like changing internet providers) or stay with the current one. It also checks if your phone is connecting to a new cell tower. Based on these checks, it makes the best decision to keep your connection stable. It's like having a GPS for your internet connection, always finding the best route.\n\n**3. Why Does This Matter?**\nThis technology matters because it improves the overall mobile experience. It reduces the frustration of dropped calls, buffering videos, and interrupted data transfers. For businesses, it means employees can stay connected and productive while on the move. It also opens up new possibilities for applications that require constant connectivity, such as self-driving cars or remote medical devices.\n\n**4. What's Next?**\nThe future of this technology involves further optimizing the handover process to make it even faster and more reliable. This could lead to new features, such as automatically switching to the best available network (Wi-Fi or cellular) based on signal strength and data costs. The market adoption timeline will depend on how quickly mobile network operators integrate this technology into their infrastructure. Investment implications include opportunities for companies that develop and deploy these types of connectivity solutions.","technical_analysis":"The Method and Apparatus for Maintaining Service Continuity of User Equipment After Tracking Area Is Updated patent introduces a technical solution for maintaining service continuity during tracking area updates (TAU) in mobile networks. The core of the innovation resides in the Mobility Management Entity (MME), which plays a central role in managing the handover process. The system architecture involves the User Equipment (UE), eNodeB, MME, Source SGW, and Target SGW. When a UE initiates a TAU request, the MME determines whether the updated target SGW is the same as the source SGW.\n\nThe implementation details involve specific algorithms within the MME to evaluate the network conditions and make informed decisions about SGW selection. The MME uses information about the UE's location, network topology, and available resources to optimize the handover process. The algorithm considers factors such as signal strength, network congestion, and service requirements to ensure a seamless transition.\n\nThe integration patterns involve the MME communicating with the eNodeB and SGW using standardized protocols. The MME sends notification messages to the eNodeB indicating whether the UE should be switched over to the target SGW or remain connected to the source SGW. The SGW then updates its routing tables to reflect the new connection path. The performance characteristics of this system are optimized for low latency and minimal service interruption. The MME's decision-making process is designed to be fast and efficient, ensuring that the handover process is completed quickly and seamlessly.\n\nThe code-level implications involve implementing the MME's algorithms in software. The code must be optimized for performance and scalability to handle a large number of concurrent TAU requests. The MME's software must also be robust and reliable to ensure that the handover process is always completed successfully. The Method and Apparatus for Maintaining Service Continuity of User Equipment After Tracking Area Is Updated offers a technical solution for ensuring seamless connectivity during tracking area updates in mobile networks.","business_analysis":"The Method and Apparatus for Maintaining Service Continuity of User Equipment After Tracking Area Is Updated patent presents a significant business opportunity for mobile network operators (MNOs) and technology providers. The market opportunity size is substantial, as the demand for seamless mobile connectivity continues to grow. The increasing reliance on mobile devices for communication, entertainment, and business applications has created a need for reliable and uninterrupted service.\n\nThe competitive advantages of this technology lie in its ability to enhance user experience, reduce service downtime, and improve network efficiency. By streamlining the TAU process, MNOs can attract and retain customers, increase revenue, and reduce operational costs. The technology also opens up opportunities for new services and applications that require ultra-reliable connectivity, such as autonomous vehicles, remote healthcare, and industrial automation.\n\nThe revenue potential for this patent is significant. MNOs can generate additional revenue by offering premium services that guarantee seamless connectivity. Technology providers can license the patent to MNOs and equipment manufacturers, generating licensing fees and royalties. The business model for this technology can be based on licensing, subscription, or a combination of both.\n\nThe strategic positioning of this patent is strong. The technology addresses a critical need in the mobile market and provides a clear competitive advantage for MNOs and technology providers. The patent can be used to build a strong market position and establish a leadership role in the mobile industry. The ROI projections for this technology are high, as the benefits of seamless connectivity translate into increased revenue, reduced costs, and improved customer satisfaction.\n\nThe Method and Apparatus for Maintaining Service Continuity of User Equipment After Tracking Area Is Updated offers a compelling business opportunity for MNOs and technology providers. The technology addresses a critical need in the mobile market and provides a clear competitive advantage. The patent has the potential to generate significant revenue and establish a leadership role in the mobile industry.","faqs":null,"topics":["mobile connectivity","service continuity","tracking area update","mobility management","seamless handover"],"tech_cluster":null},"seo":{"title":"Seamless Mobile Connectivity: Method and Apparatus for Maintaining Service Continuity of User Equipment After Tracking Area Is Updated","description":"Discover the Method and Apparatus for Maintaining Service Continuity of User Equipment After Tracking Area Is Updated patent ensuring seamless mobile connectivity during tracking area updates. Learn more!","keywords":["mobile connectivity","service continuity","tracking area update","mobility management","seamless handover","network optimization","5G","patent","patent US-9854481"]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9854481","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-9854481","citation_suggestion":"Patentable. \"Method and apparatus for maintaining service continuity of user equipment after tracking area is updated\" (US-9854481). https://patentable.app/patents/US-9854481","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9854481","json":"https://patentable.app/api/llm-context/US-9854481","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T06:56:34.896Z"}