{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8477672","patent":{"patent_number":"US-8477672","title":"4C-HSDPA acknowledgment signaling","assignee":null,"inventors":[],"filing_date":"2010-10-14T00:00:00.000Z","publication_date":"2013-07-02T00:00:00.000Z","cpc_codes":["H04L","H04L","H04L"],"num_claims":18,"abstract":"Techniques for signaling acknowledgment status (e.g., ACK, NACK, or DTX) for up to four detected carriers according to 4C-HSDPA. In an exemplary embodiment, an ACK slot of an HS-DPCCH channel utilizes spreading factor 128 to accommodate two 10-symbol codewords per slot. The codewords may be dual-carrier codewords, enabling the acknowledgment status of up to four carriers to be signaled in each slot. A DTX-DTX codeword may be further provided to signal no detection of two carriers assigned to the same codeword. In an alternative exemplary embodiment, a codeword signaling acknowledgment status for two carriers may be repeated twice over a single slot."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"4C-HSDPA acknowledgment signaling","description":"Techniques for signaling acknowledgment status (e.g., ACK, NACK, or DTX) for up to four detected carriers according to 4C-HSDPA. In an exemplary embodiment, an ACK slot of an HS-DPCCH channel utilizes","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8477672","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-8477672","citation_suggestion":"Patentable. \"4C-HSDPA acknowledgment signaling\" (US-8477672). https://patentable.app/patents/US-8477672","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8477672","json":"https://patentable.app/api/llm-context/US-8477672","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T22:13:39.049Z"}