{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9699775","patent":{"patent_number":"US-9699775","title":"Method and apparatus for transmission and reception in multi-carrier wireless communication systems","assignee":null,"inventors":[],"filing_date":"2015-11-03T00:00:00.000Z","publication_date":"2017-07-04T00:00:00.000Z","cpc_codes":["H04W","H04L","H04L","H04L","H04L","H04W","H04W","H04W","H04W"],"num_claims":40,"abstract":"Data transmission and reception is provided by configuring control channels in a wireless communication system using a plurality of carriers. User equipment (UE) may monitor physical downlink control channel (PDCCH) candidates within common search spaces (CSSs) and User Equipment-specific search spaces (USSs). If the UE is configured with cross-carrier scheduling, when two PDCCH candidates originating from a CSS and a USS, respectively, have cyclic redundancy check (CRC) scrambled by the same Radio Network Temporary Identifier (RNTI) and have a common payload size and the same first control channel element (CCE) index, the UE may interpret that only the PDCCH originating from the CSS is transmitted, thereby solving ambiguity of downlink control information (DCI) detection."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method and apparatus for transmission and reception in multi-carrier wireless communication systems","description":"Data transmission and reception is provided by configuring control channels in a wireless communication system using a plurality of carriers. User equipment (UE) may monitor physical downlink control ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9699775","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-9699775","citation_suggestion":"Patentable. \"Method and apparatus for transmission and reception in multi-carrier wireless communication systems\" (US-9699775). https://patentable.app/patents/US-9699775","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9699775","json":"https://patentable.app/api/llm-context/US-9699775","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T09:17:45.579Z"}