{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8521175","patent":{"patent_number":"US-8521175","title":"Primary serving gateway resolution","assignee":null,"inventors":[],"filing_date":"2012-05-02T00:00:00.000Z","publication_date":"2013-08-27T00:00:00.000Z","cpc_codes":["H04W","H04L","H04M","H04M","H04W","H04L","H04W","H04W","H04W"],"num_claims":20,"abstract":"Various embodiments relate to a system and related method for handling requests from a user device in a wireless communications network. Various embodiments relate to a Policy and Charging Rules Node (PCRN) attempting to bind an IP-CAN session established in a Packet Data Network gateway (PGW) with a gateway control session established in a serving gateway (SGW). In instances when the IP-CAN session and gateway control session no longer match, the PCRN may wait to receive a subsequent message from the PGW and/or SGW. When the PCRN does not receive the subsequent message containing a matching session, the PCRN may terminate the sessions in all the relevant gateways. This may cause the system to reestablish a new, matching connection instead of remaining in a hanging state."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Primary serving gateway resolution","description":"Various embodiments relate to a system and related method for handling requests from a user device in a wireless communications network. Various embodiments relate to a Policy and Charging Rules Node ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8521175","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-8521175","citation_suggestion":"Patentable. \"Primary serving gateway resolution\" (US-8521175). https://patentable.app/patents/US-8521175","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8521175","json":"https://patentable.app/api/llm-context/US-8521175","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T21:46:47.571Z"}