{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9742440","patent":{"patent_number":"US-9742440","title":"HARQ rate-compatible polar codes for wireless channels","assignee":null,"inventors":[],"filing_date":"2015-08-26T00:00:00.000Z","publication_date":"2017-08-22T00:00:00.000Z","cpc_codes":["H04L","H04L","H04L","H04L"],"num_claims":20,"abstract":"A method, apparatus, and chipset are provided for constructing hybrid automatic repeat request (HARQ) rate-compatible polar codes for communication channels. The method includes constructing, in a terminal, a base polar code of length 2n; and determining a sequence of m<2n bits to puncture in the base polar code by testing a predetermined criterion at most (22n+2n)/2−1 times."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"HARQ rate-compatible polar codes for wireless channels","description":"A method, apparatus, and chipset are provided for constructing hybrid automatic repeat request (HARQ) rate-compatible polar codes for communication channels. The method includes constructing, in a ter","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9742440","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-9742440","citation_suggestion":"Patentable. \"HARQ rate-compatible polar codes for wireless channels\" (US-9742440). https://patentable.app/patents/US-9742440","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9742440","json":"https://patentable.app/api/llm-context/US-9742440","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T10:21:49.667Z"}