{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9634818","patent":{"patent_number":"US-9634818","title":"Method and apparatus for feeding back and receiving acknowledgement information of semi-persistent scheduling data packets","assignee":null,"inventors":[],"filing_date":"2015-12-08T00:00:00.000Z","publication_date":"2017-04-25T00:00:00.000Z","cpc_codes":["H04L","H04L","H04L","H04W","H04L"],"num_claims":12,"abstract":"The application relates to radio communications and discloses a method and apparatus for feeding back and receiving acknowledgment (ACK) information of semi-persistent scheduling (SPS) data packets. The method includes receiving downlink data packets and an uplink data assignment indicator (UL DAI) from a base station, wherein a value of the UL DAI indicates a number (N) of all scheduled downlink sub-frames which scheduled by the base station for the user equipment, the number N is greater than 1, and a number k (k<N) of the downlink data packets is/are semi-persistent scheduling (SPS) data packets; forming a feedback signal comprising N acknowledgements/negative acknowledgements (ACKs/NAKs) acknowledging the N downlink data packets, k ACKs/NAKs of the k SPS data packets is/are placed from (N−k+1)th to Nth positions of the N ACKs/NAKs; and sending the feedback signal to the base station starting from the ACK/NAK at the first position."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method and apparatus for feeding back and receiving acknowledgement information of semi-persistent scheduling data packets","description":"The application relates to radio communications and discloses a method and apparatus for feeding back and receiving acknowledgment (ACK) information of semi-persistent scheduling (SPS) data packets. T","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9634818","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-9634818","citation_suggestion":"Patentable. \"Method and apparatus for feeding back and receiving acknowledgement information of semi-persistent scheduling data packets\" (US-9634818). https://patentable.app/patents/US-9634818","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9634818","json":"https://patentable.app/api/llm-context/US-9634818","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T09:00:23.113Z"}